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With the rapid development of modern industry, axial fan, as an efficient and energy-saving ventilation equipment, is gradually becoming the first choice of all walks of life. Its strong durability, safety, reliability and versatility, etc., make axial flow fans become the new darling of the industry. First of all, axial fans are made of high-quality materials, which gives them excellent durability. In industrial production, it is often necessary to deal with a large amount of waste gas and smoke, which puts higher requirements on the durability of ventilation equipment. Axial flow fans are made of high-quality materials, with excellent corrosion resistance and wear resistance, and can run stably for a long time and have a long service life. Secondly, the axial fan has overload protection and temperature protection functions to ensure safety and reliability during use. When operating in high temperature environments, ventilation equipment is susceptible to overload and overheating, resulting in equipment failure and safety hazards. The axial flow fan is equipped with advanced overload protection and temperature protection functions, once the equipment is overloaded or the temperature is too high, it will automatically stop to protect the safety of equipment and personnel. In addition, axial fans have the versatility to adjust wind speed and direction as needed. In different working environments, ventilation needs are different. The axial fan can change the wind speed and direction by adjusting the blade Angle and the fan speed to adapt to different ventilation requirements. Whether it requires large air volume ventilation or local ventilation, axial flow fans can meet. With the improvement of environmental protection awareness and the increasing demand for ventilation equipment in industrial production, the market demand for axial flow fans is also expanding. All walks of life are actively introducing axial flow fans to improve production efficiency and the comfort of the working environment. Especially in industrial manufacturing, agricultural greenhouses, building construction and other fields, axial flow fans have become indispensable equipment. In the future, with the continuous progress of science and technology and the continuous innovation of axial flow fan technology, I believe that axial flow fans will show their advantages in more fields. At the same time, the industry also needs to strengthen the standardization and standardization of axial flow fans to ensure their quality and safety. The durability, safety, reliability and versatility of axial flow fans will bring more convenience and development opportunities to the industry. In short, axial fans are becoming the preferred ventilation equipment for all walks of life due to their strong durability, safety, reliability and versatility. With the continuous expansion of market demand and continuous innovation of technology, axial flow fans will certainly play a more important role in the future development and make greater contributions to the development of the industry and environmental protection.

As the weather gets hotter, all kinds of hot news are also constantly brushing the screen. And in this hot summer, there is an unknown hero, but silently for us to create a cool world. Yes, what I want to introduce to you is the axial flow fan. First of all, let's look at one of the advantages of axial flow fans - strong durability. This hero is not some kind of flash hot spot, but a durable existence. It is made of high quality materials and has a long service life. Just like those stars who can dominate the hot list for a long time, axial flow fans can also accompany us in the hot summer, providing us with cool air. In addition to durability, axial fans also have the characteristics of safety and reliability. It not only has overload protection function, but also temperature protection function. Just like those stars who can still maintain a fresh image in hot weather, axial flow fans can also maintain stable work in high temperature environments, bringing us cool. Moreover, axial fans also have versatility. It can adjust the wind speed and direction as needed. Just like those stars who can change their shape in different occasions, axial flow fans can also flexibly adjust the wind speed and direction according to our needs, creating a suitable environment for us. Speaking of which, have you already developed a strong interest in axial flow fans? So, let's take a look at how axial flow fans show their skills in current affairs! Recently, there has been a heated discussion about environmental protection all over the world. Everyone is thinking about how to reduce energy consumption and reduce environmental pollution. And the axial flow fan can show its skill at this time. Its energy-efficient design not only cools us down, but also reduces energy consumption and environmental impact. Just like those stars who can contribute to public welfare, axial flow fans can also make their own contributions to the cause of environmental protection. In addition, axial fan can also be used in various occasions. Whether it is a factory floor, a large gymnasium or an indoor playground, it can create a comfortable environment for us. Just like those stars who can show their talent in different fields, axial flow fans can also show their versatility in different occasions. All in all, the axial flow fan is a durable, safe, reliable and versatile existence. It can not only bring us cool, but also play a big role in current affairs. Let's embrace this summer and let the axial flow fan create a cool world for us!

In recent years, axial fan as a kind of high efficiency and energy saving ventilation equipment has been widely used. It has the characteristics of small volume, low noise, large air volume, uniform wind speed, etc., suitable for ventilation circulation and heat dissipation ventilation in various places. The following will introduce the application of Axial FAN in commercial places, sports venues and electronics industry. First of all, Axial FAN are widely used in commercial places. Shopping malls, supermarkets, exhibition centers and other places usually have a large flow of people, poor air circulation, and easy to produce odor and heat accumulation. The axial fan can effectively solve these problems by forcing the circulation of air to make the air circulate. It can introduce fresh air into the room, discharge dirty air, keep the indoor air fresh, and effectively reduce the temperature, improve people's comfort. Secondly, the application of axial fan in sports venues is also very important. Stadiums usually hold a large number of spectators, and large numbers of people generate a lot of heat and carbon dioxide. Also, physical activity itself can cause indoor temperatures to rise. Without proper ventilation, this heat and carbon dioxide can lead to a decline in indoor air quality, affecting spectators' experience and athletes' performance. The axial flow fan can quickly discharge heat and carbon dioxide from the stadium through the strong air volume and wind speed, keep the indoor air fresh, and provide a comfortable environment for spectators and athletes. Finally, the application of Axial FAN in the electronics industry is also very important. Electronic equipment and equipment rooms usually generate a lot of heat, if not timely heat dissipation, will lead to equipment failure and performance degradation. The axial fan can quickly discharge the heat from the equipment and the machine room by forcing the circulation of air, and maintain the normal working temperature of the equipment. At the same time, its low noise will not interfere with the normal operation of the electronic equipment, and ensure the stability and reliability of the equipment. In summary, the application of Axial FAN in commercial places, sports venues and electronics industry is very extensive. Its high efficiency and energy saving characteristics make it the preferred ventilation equipment for these places. With the continuous progress of science and technology and the continuous improvement of people's demand for a comfortable environment, the application prospect of Axial FAN will be broader.

The application of Axial FAN fans in many industries and scenarios has been widely recognized. Whether in the industrial manufacturing industry, agriculture or construction industry, Axial FAN fans play an important role. First of all, Axial FAN fans are widely used in industrial manufacturing. Factory floors and production lines often require good ventilation systems to ensure a comfortable working environment and the health of employees. Axial fans effectively circulate air by drawing it in from an area and quickly expelling it, keeping it fresh and reducing indoor humidity and temperature. This not only increases productivity, but also reduces health problems caused by prolonged exposure to harsh environments. Secondly, axial fans also play an important role in the agricultural industry. In livestock farms and greenhouses, animals and plants need good ventilation and cooling systems to maintain their growth and production environment. Axial-flow fans can effectively introduce fresh air into farms and greenhouses, and quickly expel dirty air to maintain indoor air circulation. This helps to reduce temperature, humidity and ammonia concentrations, providing a comfortable growing environment while reducing the risk of disease transmission and improving farming and planting efficiency. In addition, Axial FAN fans also play an important role in the construction industry. Large buildings usually require a strong ventilation and smoke exhaust system to ensure the quality and safety of indoor air. Axial FAN fans keep indoor air fresh and safe by quickly discharging smoke, dirty air and harmful gases from the building. This is essential for fire safety and personnel evacuation, and can quickly and effectively eliminate harmful gases and fumes in emergency situations, protecting personnel's life safety. All in all, Axial FAN fans are widely used in industrial manufacturing, agriculture and construction industries. They can provide a good ventilation system, maintain the quality and comfort of indoor air, improve work efficiency and production efficiency. With the continuous advancement of technology, the performance and efficiency of Axial FAN fans are also improving, providing better ventilation solutions for various industries. In the future, we can foresee that axial-flow fans will be applied in more areas and provide better air quality and comfort for our living and working environments.

Axial fan is a kind of equipment that is widely used in places that need ventilation or cooling, such as workers in factory workshops, livestock and poultry farms, customers in shopping malls and supermarkets, and spectators in sports stadiums. It effectively improves people's working and living environment by generating strong airflow. First of all, axial-flow fans are being used more and more widely in factory floors. With the continuous advancement of the industrialization process, the ventilation problem of the factory workshop has become increasingly prominent. Traditional ventilation equipment has been unable to meet the demand, and Axial FAN fans with its efficient ventilation performance and low energy consumption characteristics become the first choice. It can quickly discharge the dirty air in the workshop, create a fresh and comfortable working environment for workers, and improve work efficiency. Secondly, the application of axial fan in livestock and poultry farms has also been widely promoted. The ventilation of livestock and poultry farms is directly related to the health and growth of animals. By producing a large amount of air flow, the Axial FAN fan can effectively eliminate the dirty air and odor in the livestock and poultry farm, keep the air fresh and circulating, and provide a good growing environment. At the same time, it can also reduce the temperature of the farm, reduce the heat stress of the animals, and improve the efficiency of breeding. In addition, Axial FAN fans also play an important role in shopping malls, supermarkets and stadiums. As a place with a large flow of people, shopping malls and supermarkets are essential for ventilation. The axial fan can effectively exhaust the hot air in the room and create a comfortable shopping environment for customers. As a large-scale activity place, the sports stadium is crowded with people, and the air circulation problem is more prominent. The axial fan can quickly remove the hot air in the stadium, providing a fresh watching environment for the audience and improving the audience's watching experience. As people have higher and higher requirements for indoor air quality, axial fan, as a kind of efficient and energy-saving ventilation equipment, will be more widely used in various fields. In the future, with the continuous progress of science and technology, the performance of Axial FAN fans will be further improved, creating a more comfortable and healthy working and living environment for people.

Recently, as the temperature has gradually climbed, people in the city have begun to find various ways to beat the heat. And at this time, a magical little guy quietly emerged, it is the Axial FAN! This small body can produce a large amount of air, fast ventilation guy, has become a lifesaver for many people. First, let's look at the high efficiency of Axial FANs. In this hot summer, what we need most is a cool wind, and the Axial FAN can just meet this demand. They can produce a large volume of wind, so that the hot air is quickly expelled, giving us a fresh breath of cool. In addition to high efficiency, Axial FANs have a favorite feature, that is, low noise. I believe we all have such experience, in the hot night, tossing and turning, unable to sleep, and this is often because of noisy environmental noise. However, the Axial FAN uses advanced noise reduction technology and has low noise, so that we can sleep peacefully in the cool wind and no longer worry about noise. In addition, the Axial FAN is also a small environmental protection expert. It uses high-efficiency motors with low energy consumption, which can not only bring us cool, but also save energy for the earth and reduce energy consumption. In this era of advocating energy conservation and environmental protection, the emergence of Axial FANs is undoubtedly good news. Let's talk about the small size of Axial FANs. I believe many people have this problem, the home space is limited, the installation of a large ventilation equipment is too much space. However, fortunately, the Axial FAN is small in size, flexible in installation, and does not take up too much space, making our home environment more comfortable. The last advantage is that the maintenance of the axial fan is simple. Compared with other complex ventilation equipment, Axial FANs have a simple structure and are very convenient to clean and maintain. We only need to clean its blades and filters regularly to ensure its normal operation, so that our cool wind continues to blow. In summary, the Axial FAN can be described as a savior of small body and large energy in this hot summer. It has the advantages of high efficiency, low noise, energy saving and environmental protection, small size and simple maintenance, so that we can enjoy the cool wind in the hot summer, but also save energy for the earth. So, if you are still worried about the hot summer, may wish to consider the Axial FAN, it will bring you cool and comfortable, let you spend a happy summer!

In recent years, environmental protection issues have attracted much attention, and all walks of life are actively seeking green environmental protection solutions. In industrial production, axial flow fans and Blower FANs have become essential equipment, which can effectively improve air quality and improve production efficiency. However, there are many kinds of axial flow fans and Blower FANs on the market, and how to choose and purchase good products has become a problem faced by enterprises. An Axial FAN is a device that can produce a large amount of air flow and discharge it along the axis. It is characterized by simple structure, small size and low noise, and is widely used in industrial production, building ventilation, aerospace and other fields. When choosing an Axial FAN, enterprises should pay attention to key indicators such as air volume, noise, and energy efficiency to ensure that it can meet production needs while minimizing energy consumption and environmental pollution. In addition, it is also necessary to consider the stability and reliability of the equipment to ensure long-term stable operation. Blower FAN is a kind of equipment that can produce high pressure air flow, which is widely used in steel, chemical, electric power and other industries. It is characterized by high wind pressure, large air volume, high efficiency, and can provide a stable air supply. When purchasing Blower FANs, enterprises should pay attention to key indicators such as wind pressure, air volume, and efficiency to ensure that they can meet the demand for air flow in the production process. In addition, it is also necessary to consider the operational stability and maintenance convenience of the equipment to reduce production costs and reduce the failure rate. In order to help enterprises to purchase good axial flow fans and Blower FANs, there are many professional suppliers and service providers on the market. These suppliers are not only able to provide various specifications of equipment, but also can provide customized solutions according to the actual needs of the enterprise. At the same time, some suppliers also provide equipment installation, commissioning, operation and maintenance and other one-stop services to provide a full range of support for enterprises. With the continuous improvement of environmental protection awareness, green environmental protection has become a hot topic nowadays. Axial FANs and Blower FANs, as key equipment, play an important role in industrial production. Selecting and purchasing good equipment can not only improve production efficiency, but also reduce energy consumption and environmental pollution. Therefore, when purchasing axial flow fans and Blower FANs, enterprises should fully consider the performance, stability and reliability of the equipment, choose the right supplier, and pay attention to the maintenance of the equipment to ensure the long-term stable operation of the equipment. To sum up, how to purchase good axial flow fans and Blower FANs is a problem that enterprises need to think about seriously. By choosing the right suppliers, paying attention to the key indicators of equipment, and paying attention to the maintenance of equipment, enterprises can purchase high-quality equipment that meets the production needs, improve production efficiency, and achieve the goal of green environmental protection.

Working principle of DC fan: According to Ampere's right-hand rule, when a conductor passes current, a magnetic field will be generated around it. If the conductor is placed in another fixed magnetic field, an attraction or repulsion will be generated, causing the object to move. Inside the fan blade of the DC fan, a rubber magnet pre-filled with magnetism is attached. Surrounding the silicon steel sheet, two sets of coils are wound around the shaft, and the Hall induction component is used as a synchronous detection device to control a set of circuits, which make the two sets of coils wound around the shaft work in turn. The silicon steel sheet produces different magnetic poles, and the magnetic poles and the rubber magnets produce attraction and repulsion. When the suction and repulsion force is greater than the static friction force of the lice fan, the fan blade rotates naturally. Since the Hall sensing element provides a synchronizing signal, the fan blade can continue to run, and its running direction can be determined according to Fleming's right-hand rule.

Dc Axial Fan is widely used in various industrial occasions, and it is one of the most widely used fans. The shape of the Dc Axial Flow Fan is a bit like an electric fan. It has a central axis, and the four fan blades will follow this central axis to rotate to form an axial flow fan. Because of the fluidity of the fan gas, it is suitable for use in places with relatively low pressure. In fact, many friends are not familiar with axial fans. The effect of real axial fans is very good. So, what is the working principle of the axial fan? DC Axial Fan working principle-definition Ordinary axial flow fans can be used for ventilation in general factories, warehouses, office residences and other places, and can also be used for air coolers (air coolers), evaporators, condensers, spray drops, etc. Fan, anti-corrosion and explosion-proof axial flow fan adopts anti-corrosion materials and explosion-proof measures, and is matched with explosion-proof motor. It can be used to transport explosive, volatile and corrosive gases. It is required that the gas transported by the axial flow fan should have no significant dust and no stickiness. and fibrous substances; the temperature of the motor direct connection type does not exceed 40°C, and the temperature of the belt drive type does not exceed 60°C. The amount of dust in the conveyed gas shall not exceed 150mg/m3. The axial flow fan is mainly composed of impeller, casing, motor and other parts, and the bracket is made of section steel and connected to the casing fan. Among them, the impeller and casing of the anti-corrosion axial fan are made of glass fiber reinforced plastic, and other types of axial fans are generally made of steel plate. to make.

Dc Cross-flow Fan is mainly composed of four parts: rotor, stator, motor and outer frame. The DC motor consists of a permanent magnet rotor, a multi-stage winding stator, a position sensor, and an electronic commutation drive control circuit. The rotor is composed of motor shell + magnetic strip + shaft core + fan blade. Stator part: enameled wire + plastic coated silicon steel sheet + bearing + Hall induction detection + drive circuit board + shaft. The core components of the Dc Cross Flow Fan are the stator and rotor. Through Ampere's right-hand rule, we know that when a conductor passes an electric current, a magnetic field will be generated around it. If the conductor is placed in another fixed magnetic field, an attraction or repulsion will be generated, which will cause the object to move. Inside the fan blade of the DC fan, a rubber magnet pre-filled with magnetism is attached. Surrounding the silicon steel sheet, the shaft is wound with two sets of coils, and the Hall induction component is used as a synchronous detection device to control a set of circuits. The magnetic pole and the rubber magnet generate attraction and repulsion. When the repulsive force is greater than the static friction force of the fan, the fan blades rotate naturally. Since the Hall sensing element provides a synchronization signal, the fan blades can continue to run, and the direction of rotation can be determined according to Fleming's right-hand rule. That's how the Dc Cross Flow Blower works.

BCR-4DM and BCR-12DM are direct cooling type, so there is only one cooling fan, BCR-4DM is an 80×80MM cooling fan, and BCR-12DM is a 120×120MM cooling fan; BCR-18DM and BCR-30DM are air-cooled, so there are two cooling fans inside and outside, The outer fans are all 120×120MM cooling fans, the inner fan BCR-18DM is a centrifugal fan, and BCR-30DM is a bracket fan. 4. The conductive block, which conducts cold or heat energy, is made of aluminum and will not fail. 5. The control board is used to control the current direction. When the current direction changes, only the current on the cooling chip changes, and the current direction on the fan will not change. The function of the control board is to ensure the normal operation of the product. Shutdown; each model has its own control panel. BCR-4DM control board BCR-12DM LCD control board BCR-18DM control board BCR-30DM control board 6. Toggle switch, BCR-12DM, BCR-18DM use toggle switch to switch between alternating current and direct current. 7. Switching power supply, divided into 4A and 6A switching power supply, one is used for BCR-4DM and BCR-12DM, the other is used for BCR-18DM and BCR-30DM, which are vulnerable parts. 8. The resettable temperature protector is a universal type.

The car refrigerator (electronic hot and cold box) is a refrigerator that can be cooled and heated by using the Peltier effect principle (thermoelectric effect). The so-called Peltier effect means that when two different conductors are connected and connected to a DC power supply to form a loop, the phenomenon of heat absorption or heat release occurs at the junction of the two conductors, and the heat absorbed or released is only It is related to the properties of the two conductors and the temperature of the junction, but has nothing to do with the other parts of the conductor. This effect is also reversible, that is, when the current changes, the original end of heat absorption becomes the end of heat release, and the original end of heat release becomes the end of heat absorption. Its main features are as follows: 1. The working state is DC 12V, which can be directly connected to the car cigarette lighter. 2. Because it is electronic cooling and heating, there is no compressor, and it can be placed at will. Tilting or inverting will not affect the performance of the product. 3. Because it is a hot spot refrigeration (thermoelectric refrigeration), the ventilation must be good, and the air duct must not be blocked, which will affect the performance of the product. 4. It can be used for cooling or heating. Toggle the switch to change the direction of the current, so as to reversely adjust the cold and hot surfaces of the cooling plate, so as to achieve the purpose of cooling and heating in the box. 5. In the heating state, the side of the conductive block is equipped with a temperature protector, so that when the temperature of the conductive block reaches 85 degrees, the power is automatically cut off; when the temperature drops, the power is automatically turned on. In the cooling state, the protector does not work. 6. Because it is thermoelectric cooling, its cooling effect is closely related to the ambient temperature, and the cooling effect of the ambient temperature changes greatly, but the cooling effect is always lower than the ambient temperature of 17-25 degrees. 7. A built-in switching power supply can be installed to convert the household AC 220V voltage into a DC 12V voltage, which can be suitable for the needs of the family, so that it can be used for home or car. 8. For cars with a length of more than 5.5 meters, because they are powered by DC 24V, they must be equipped with a converter. 9. The biggest feature of hot spot refrigeration is its long service life. Under normal circumstances, its service life can reach 80,000 hours. 10. For dual-purpose products equipped with a built-in switching power supply, the service life of the switching power supply is 5000 hours, so when it is found that the AC is not working, the switching power supply must be checked and even replaced. 11. For liquid crystal display and computer-controlled products, it is equivalent to installing an electronic thermostat. The user only needs to set the required temperature (according to the ambient temperature, the temperature difference is 17 to 25 degrees), and the controller will automatically follow The ambient temperature is used to determine whether it is cooling or heating, without manual adjustment. Example: If the ambient temperature is 15 degrees, when the set temperature is 0 degrees, the refrigerator will automatically refrigerate, when the temperature reaches 0 degrees, it will stop working, and when the temperature rises, it will start working again, and its action range is 2 to 4 degrees. ; When the set temperature is 20 degrees, the refrigerator will automatically heat, when the temperature reaches the requirement, it will stop working, and start working again when the temperature drops; if the refrigerator needs to automatically switch from cooling to heating or from When the heating is switched to cooling, in order to avoid sudden cooling and sudden heating, an interval of 5 minutes is set in the middle, and it will automatically switch after 5 minutes. 12. In order to protect the refrigeration fins, the refrigeration cannot be switched to heating all at once. There must be a minimum of 5 minutes between cooling and heating, otherwise it will cause the refrigeration fin to burst.

1. Refrigeration film: is divided into two types: 12705 and 12706, which means that there are 127 pairs of semiconductors, and the maximum operating current is 5A and 6A respectively. The shape is the same, the surface is distinguished by text, and it can also be used universally. 12705 is used for BCR-4DM and BCR-12DM; 12706 is used for BCR-18DM and BCR-30DM It is the refrigeration element of the product, with a long service life, and will not fail under normal circumstances. 2. The radiator is an aluminum radiator and will not malfunction. 3, cooling fan:

With the development of electronic technology, automobiles have gradually become an extension of home entertainment and office environments. After the originally independent consumer and communication applications entered the field of automotive electronics, new integrated applications continued to appear. In addition to functions such as high-definition/high-fidelity content playback and digital TV, in-vehicle information communication entertainment system, in-vehicle GPS navigation, mobile phone (GSM/GPRS), information connection, short-range communication (Dedicated Short Range CommunicaTIon, DSRC) and high-level data connection Control (High Level Datalink Control, HDLC) has gradually become an important part of the system. The TelemaTIcs system is an integrated service that combines GPS, GSM/GPRS, DSRC, and traffic information digital broadcasting. It can provide real-time road condition navigation, avoid congested road sections and determine the best driving route, provide car status diagnosis, Diversified value-added services such as lost car recovery, reserved parking space, electronic toll collection (Electronics Toll CollecTIon, ETC) and emergency calls. With the continuous increase of the functions of the car entertainment system, the heating elements have also increased accordingly. The heat dissipation design of the heating elements directly affects the normal use of the entertainment system, especially whether it can pass the 70°C high temperature test. Therefore, the use of natural cooling can no longer meet the heat dissipation requirements of the product, and it is necessary to add a cooling fan for forced cooling. The use of a heat dissipation structure with forced cooling by a heat dissipation fan can eliminate heat accumulation, so as to avoid system malfunction or permanent damage.

When you are choosing a fan, the following related knowledge will provide you with a favorable reference, really allow you to choose a fan product that meets your own use. One, the choice of fan specifications: 1, the choice of fan frame size: 1-1] [Length 25 × Width 25 × Thickness 10mm]: Industry Abbreviation 2510 1-2] [Length 40 × Width 40 × Thickness 20mm]: Industry Abbreviation 4020 1-3] [Length 60 × Width 60 × Thickness 15mm] :Industry abbreviation 6015 1-4] [Length 80×Width 80×Thickness 25mm]: Industry abbreviation 8025 1-5] [Length 120×Width 120×Thickness 25mm]:Industry abbreviation 12025 1-6] 12032[Length 120×Width 120×thickness 32mm]:Industry abbreviation 12032 etc. 1-7) The outer dimensions of the above fans have different screw hole pitch and screw hole diameter As shown in the figure above: The external dimension of the fan is 60×60×15mm (referred to as 6015 fan), the screw diameter is Ф4.4mm, and the hole distance is 50.0mm. 2. Fan frame and fan blade plastic material and color selection: 2-1) Fan frame + fan blade: is PBT raw material white (plastic heat distortion temperature 230 ℃) 2-2) Fan frame + fan blade: is PBT raw material black (plastic heat distortion temperature 230 ℃) 2-3) fan frame +Fan blade: is PC raw material is transparent (plastic heat distortion temperature 120 ℃) 2 -4) Fan frame + fan blade: is PC raw material plus different toners to form the appearance color, etc. (plastic heat distortion temperature 120℃) 8025 DC Cooling fan BF8025 series 3. The choice of fan mechanical bearing system: 3-1] Double-ball dust-proof structure [2 Bearing+S420 iron shaft + dust-proof structure design] Dust-proof structure design ◆Advantages: a) The running speed of the fan is relatively stable, and the fan speed will not be changed in different positions of the fan installation b) relatively long service life C) easy to produce, process and assemble ◆ Disadvantages a) higher cost 3-2] Single ball dust-proof structure [One ball bearing (Bearing) + oil bearing (Sleeve) + S420 iron shaft + dust-proof structure design] ◆ Advantages: a) The running speed of the fan is relatively stable, and the speed of the fan will not be changed in different positions of the fan installation. b) The relative service life is moderate ◆ Disadvantages a) High cost b) The processing difficulty is high, and it is easy to produce abnormal noise during the manufacturing process and use. 3-3] Dust-proof hydraulic top center fixed magnetic fan [Oil-return groove oil bearing (Sleeve) + S420 Iron shaft + dustproof structure design] Oil-impregnated bearing top center design Oil return system design, dustproof structure design, solid magnet This form is used in some special models of radiators. The difference between the two types of air supply is the difference in air flow. When blowing air, turbulence is produced, and the wind pressure is high, but it is susceptible to resistance loss; when the air is exhausted, it is laminar flow, and the air pressure is small but the air flow is stable. In theory, the heat dissipation efficiency of turbulent flow is much greater than that of laminar flow, so it has become the mainstream design form. Although the axial fan is widely used, it also has inherent shortcomings. The axial flow fan is blocked by the position of the motor, and the airflow cannot flow smoothly through the middle of the blowing area, which is called the "dead zone".

With the improvement of living standards, automobiles have gradually become a necessity in our lives, and the development of automobile technology has also brought us more comfortable enjoyment. Of course, the requirements for the functions of vehicles have become higher and higher. It can be seen from the functional development of car seats that we are not only satisfied with having transportation tools, but can bring a better comfortable experience. The three functions of seat heating, seat ventilation, and seat massage mentioned today are all integrated in the seat, which can bring a more comfortable riding experience to the driver or passenger. Which is more important? In fact, they are all important, and it would be great if they could have both. 1. Seat heating: By electrically heating the heating resistance wire under the seat, the seat is gradually heated in a short period of time, and the heat is transferred to the occupant, and the temperature can be adjusted through the temperature regulator. It is still very warm in the cold season. Many people think that for the north, seat heating is the most practical. In fact, it is more practical for friends in the south, because there is no heating in winter in the south, and the weather is humid and cold, so the heating function is very practical for the north and south. 2. Seat ventilation: Seat ventilation functions generally have seat heating. Ventilation is divided into air supply type and suction type. The principle of seat ventilation is to use a DC fan to inject air into the seat, and the air flows from the small holes on the seat. Outflow, realize the ventilation function. The seat ventilation effectively improves the air circulation environment of the contact part between the human body and the seat surface. Even if you ride for a long time, the contact surface between the body and the seat will be dry and comfortable. The unique ventilation circulation system of the seat ventilation and air conditioner continuously flows fresh air out of the small holes in the seat cushion and backrest to prevent sweat from the hips and back and provide a comfortable riding environment. Regardless of the north and south, it is the most comfortable function in the hot environment. 3. Seat massage: Seats with this function generally have heating and ventilation, so the massage function is generally available in high-end cars. The designer adds a pneumatic device in the seat. The air pressure is provided by the air pump in the engine compartment. There are 4 seats in the seat back. Or multiple air pressure chambers to protect the lumbar spine. At the same time, these air pressure chambers are controlled by a computer-controlled electronic oscillator installed in the backrest. The electronic oscillator changes the pressure in the air pressure chamber according to a pre-written program, so that the seat surface will move accordingly to massage the drivers and passengers. the goal of. All three functions use DC fans.

In recent years, from environmental protection considerations to promote energy conservation, the development trend of electric vehicles has soared. Therefore, the demand for charging piles has also adapted to the changes of the times. Stations are set up in various public places, and various types of electric vehicles can be provided according to different voltage levels. Charging, charging piles generally provide regular charging and fast charging. Normal charging usually takes 6-8 hours, and fast charging usually takes 1-2 hours. Thinking about it, use fast charging, current and voltage will increase, causing heat to rise rapidly, because the faster the charging speed of the charging pile, the inductive module The greater the power and the greater the charging current, the greater the heat generated by its power modules and other components. If the heat cannot be cooled in time, it will inevitably cause a great safety accident. Therefore, it can be seen that adding a cooling performance and reliability A high heat dissipation fan is a necessary way for charging piles and the key to solving the heat dissipation problem of charging pile systems. So what are the necessary conditions for the cooling fan to be applied? 1. First of all, the cooling performance should be good, and an axial fan with high air volume and high air pressure is required 2. The site is generally outdoors, and the cooling fan needs to be waterproof, dustproof, and anticorrosive, so waterproof cooling air should be used

Car purifiers are also called car purifiers or car air purifiers, usually composed of high-voltage generating circuit negative ion generators, micro fans, air filters and other systems. Its working principle is as follows: The micro-fan (also known as a ventilator) in the machine circulates the air in the car, and the polluted air passes through the PM2.5 filter and activated carbon filter in the machine to filter or adsorb various pollutants, and then The negative ion generator installed in the air outlet (the high voltage in the negative ion generator generates DC negative high voltage during operation) continuously ionizes the air to produce a large number of negative ions, which are sent out by the micro fan to form a negative ion air flow to achieve the purpose of cleaning and purifying the air.

With the continuous improvement of the economy, people's lives are getting better and better, and many people have bought cars. Everyone likes to drive to travel and work far away. The car charger can help us to charge the electrical appliances we carry when there is no electricity. This charger will generate high temperature when charging. Usually, a cooling fan is installed inside to remove the heat, so as not to cause the system. Functional failure or permanent damage.

After receiving various electrical signals, the computer analyzes and processes them, and then issues work commands to various actuators. 1. Automobile electronic control system generally consists of 3 parts in hardware structure: sensor, electronic control unit (ECU) and actuator. When the car is running, each sensor continuously detects the operating condition information of the car and transmits this information to the ECU through the input interface in real time. 2. When the ECU receives these information, it makes corresponding decisions and processing according to the internal pre-written control program, and outputs the control signal to the corresponding actuator through its output interface. After the actuator receives the control signal, it executes the corresponding Action to achieve a certain predetermined function. 3. Car sensors are arranged in different positions of the car, and their main function is to provide the car control system with information about various operating conditions of the car, such as engine speed, throttle opening, and coolant temperature. Sensors with the same function also have different structures on different vehicles. There are two main types of electrical signals provided by sensors to the automotive electronic control unit: analog signals and digital signals. Therefore, the system host will produce high temperature when it is operating. Usually, a cooling fan is installed inside to eliminate heat accumulation, so as to avoid system malfunction or permanent damage.