Company News
Industry News
Knowledge
Contacts: Maggie Yu
Tel: +86-0755-28035808
Fax: +86-0755-28035808
Phone/Wechat: 0086-18038069461
E-mail: yyh88@snowfan.com.cn
Time：2021-08-09Views：0
For many products, if the power supply is reversed, the product will burn, or the insurance will be burned. Then the power cord of the cooling fan will burn if the power cord is reversed? This needs to be divided into several situations
1. The drive chip of the cooling fan has no polarity protection function.
2. If the driver chip has a built-in polarity protection function, if the cooling fan is plugged in reversely, the current will become larger, and it will not burn in a short time, but it will cause the motor temperature rise to increase, because the driver chip is very separate from the motor. Recently, if the temperature rise of the motor exceeds the temperature of the chip, some chips will be in a protected state, and some chips will be thermally broken down.
3. There is a reverse diode on the PCB control board of the cooling fan, and the power cord connection will not burn
After the power is turned on, if you find that the cooling fan does not work, the first thing you worry about is whether the cooling fan is faulty. In fact, it is not necessarily. The following situations are caused by non-matching
1. Use a constant current source as the power supply. If the output current of the constant current source is inconsistent with the current of the cooling fan, the cooling fan will not rotate, which will be very abnormal.
2. Use the power supply after the voltage regulator, if the voltage is lower than the starting voltage of the cooling fan, it will also cause the fan to fail to rotate
Estimated service life of cooling fan hydraulic bearings and double ball bearings
2021-12-24How much high temperature can the cooling fan resist?
2021-11-23How to choose a cooling fan to be more silent?
2021-10-15How to choose a manufacturer for the cooling fan of the mining machine case to reduce the cost
2021-08-13Advantages and structural defects of hydraulic fans
2021-12-27How do manufacturers do dust-proof cooling fans?
2021-12-28How long can the manufacturer of 4010 cooling fan guarantee?
2021-12-27What methods can improve the quality of cooling fans?
2022-01-15What common questions should be paid attention to during the application of cooling fans?
2022-01-17Can the speed of the micro cooling fan be adjusted?
2022-01-13How to deal with the noise of the micro cooling fan
2021-12-25What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-09-06Cooling Fan - Structure
2022-03-29Fan manufacturers
2022-04-22Cooling fan function introduction
2022-03-28New product development, how to quickly choose a suitable cooling fan
2022-02-18Can the speed of the micro cooling fan be adjusted?
2022-01-08The development trend of cooling fan
2022-04-11Why is the fan not turning?
2022-04-02How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2021-12-28Why is the cooling fan squirting oil?
2021-10-18The structure of the electric fan
2022-07-19What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-16Introduction and Application of Photodiode
2021-09-10Are more computer fans better?
2022-03-29Take you to see what is a DC fan
2022-01-17How to realize the silent cooling fan?
2021-08-02Can the speed of AC fan be adjusted?
2022-01-27Interpretation of the heat transfer method of low-noise DC fans
2022-03-03Silicon oil fan clutch structure composition
2021-11-26Do you know how the fan works?
2022-03-25Analysis of the source of DC fan noise
2021-11-10The main application areas of DC cooling fans
2022-05-11The main application areas of DC cooling fans
2022-04-25How DC Fans Work
2022-05-12How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2022-02-23How about the waterproof function of the cooling fan?
2022-04-12What factors need to be considered for the reliability of the cooling fan?
2021-12-07Why are oil-contained cooling fans prone to noise?
2021-09-28Must-see for fan
2021-11-25Cooling fan manufacturers tell you the source and solution of noise
2022-03-11How DC Fans Work
2022-04-06What information does the manufacturer need to make a cooling fan sample?
2021-09-14cooling fan manufacturers have to order several samples?
2021-12-10What are the factors related to the life of the cooling fan?
2021-10-13What is the difference between a heatsink and a fan on a computer?
2022-03-23Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-12-21What are the specifications of the silent fan Jingyangda?
2021-12-06Teach you to distinguish the types of cooling fans
2022-04-15Why is the 3007 silent fan difficult to achieve, and is there any good way?
2022-02-18What should be paid attention to for the cooling fan of the new energy charging pile?
2021-08-17Why do cooling fan manufacturers have to order several samples?
2022-04-19The air volume of the cooling fan is related to the air pressure of the cooling fan
2022-01-24Analysis of the reasons for the cooling fan rotation stall
2022-03-02What is the effect of the waterproof fan?
2021-11-01What are the advantages of DC direct floating hot fans?
2022-01-10About the cause and treatment of DC fan noise
2021-11-23Guidelines For The Use Of Axial Fan Blades
2021-04-28What specifications are good for the ventilation fan of the air purifier?
2021-08-24What is the structure of the fan
2022-07-18Can the tolerance of the DC cooling fan be reduced?
2021-09-26Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-23Does the cooling fan work at low temperatures have an impact?
2021-10-21What should I do if the computer fan is loud
2022-03-25What are the processes for the internal structure of the waterproof fan?
2022-01-04Heat waves will change the way of life in the future
2021-11-25How to choose a more reasonable DC axial fan
2021-08-19Different types of cooling fans
2022-05-16A comprehensive introduction to DC cooling fans
2022-04-25Why is there a quantity requirement for the cooling fan?
2021-12-14choose a cooling fan to be more silent?
2021-12-13What is the reason for the noise of 4010 DC fan?
2022-01-20What is the difference between ball bearings and oil-impregnated bearings for cooling fans?
2021-11-08Is wireless charging slower than wired charging?
2022-02-14What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-10-08Features of DC blower
2021-12-14How much is the power of a household fan
2022-04-01What information does the manufacturer need to make a cooling fan sample?
2022-01-25Mainly the fan with oil-containing structure.
2022-03-02Can the DC fan speed be adjusted?
2021-08-25How to solve the noise problem of cooling fan
2022-03-16What information does the manufacturer need to make a cooling fan sample?
2021-12-20What are the purchasing skills of electric fans?
2022-05-09Analysis on whether the cooling fan can be waterproof after adding lubricating oil?
2021-10-13The cooling fan is used to force the air supply to the electronic radiator through the wind speed
2022-03-18What are the fans used for heat dissipation in electric vehicle charging piles?
2021-08-17How to solve the noise problem of cooling fan
2022-03-17hou much do you know about the working principle of fan cooling
2021-12-24What are the advantages of imported cooling fans?
2022-04-19Do you know how the fan works?
2022-05-11Analysis of DC fan and its working principle
2021-10-20How dustproof and reliable the cooling fan is
2022-01-22Disassemble the components of the cooling fan
2022-05-10The correct way to open the DC fan accessories
2021-12-24The speed of the cooling fan
2021-12-22Does the unobstructed air outlet affect the cooling fan?
2021-09-02Talk about the reason why the cooling fan does not turn
2021-11-03What is an electric fan made of?
2022-07-18What is the difference between a DC cooling fan and an AC cooling fan?
2021-09-06Common faults of cooling fans and their solutions
2022-02-28Why is the stock 4010 fan so cheap?
2021-08-30Advantages and Performance of DC Cooling Fans
2022-04-15The price of cooling fan manufacturers is different, what is the poor performance?
2022-01-17Why does the cooling fan manufacturer have no inventory?
2022-01-18The cooling fan is used to force the radiator through the wind speed
2022-03-16What is the difference between a 3-wire and 4-wire CPU cooling fan for a computer?
2021-09-01the DC cooling fan burn if connected
2021-12-09Tell you what to pay attention to when choosing a cooling fan for communication equipment
2022-03-04Where are the cooling fan manufacturers mainly concentrated
2021-09-29Mergers and acquisitions integration and capital operation among large DC fan manufacturers are beco
2022-04-14Can the cooling fan pass the salt spray test?
2021-08-02Reasons and repair methods for household floor fans not rotating
2022-03-21Can waterproof fans operate at low temperatures?
2021-10-20What does the life span of the cooling fan have to do with?
2021-08-05Briefly describe the characteristics of the DC blower
2022-04-07Electric fan: distinguish between dry heat and damp heat
2021-11-24Can the DC cooling fan vibrate with high intensity?
2021-12-16Understand the installation essentials of DC fans
2021-12-22What are the tips for cleaning the dust of the cooling fan
2021-10-28Cooling fan manufacturer Chengda shares with you the cleaning skills of fans
2022-03-07How electric fans work
2022-03-22Why are fans mostly square, can they be made into rectangles?
2022-01-07Can 4010DC fans be made waterproof?
2021-08-23How does the installation method of the cooling fan affect the service life?
2022-01-26What is the specific meaning of the air volume parameters of the cooling fan?
2021-10-11What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-09-07Does the cooling fan work at low temperatures have an impact?
2021-10-19How is the cooling fan designed
2021-12-25Is it sufficient to increase the speed of the high-volume cooling fan?
2022-04-20Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-12-17A comprehensive introduction to DC cooling fans
2022-05-10What are the characteristics of lightweight DC fans for drones?
2021-12-06Will the current sensor be magnetized?
2022-04-13What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-22What are the correct steps to install a DC fan?
2021-11-05DC fan suppliers discuss with you the main factors of fan cooling
2022-03-07What is the warranty period for the cooling fan?
2021-08-03What are the requirements for cooling fans for Bitcoin mining machines?
2021-08-12The heat dissipation characteristics of axial fans
2021-08-18The main structure and working principle of electric fan
2022-04-21DC cooling fan
2022-05-17Why are oil-contained cooling fans prone to noise?
2021-12-16How to use and maintain electric fans
2022-05-06Which cooling fan is better?
2022-03-24Repair of electric fan not rotating
2022-04-02Explain the components of the cooling fan
2022-05-17How do manufacturers do dust-proof cooling fans?
2021-08-11Axial fans and centrifugal fans
2022-04-08Essential tips for life: how to use the cooling fan correctly
2022-07-15Classification and application of fans in our lives
2022-04-11The price of cooling fan manufacturers is different, what is the poor performance?
2021-08-10iring shall be installed by professionals
2021-12-23Analysis of why the waterproof fan has a backwind phenomenon?
2022-02-27Analysis on whether the air outlet is not unblocked has an effect on the cooling fan?
2021-10-12How to choose a silent fan?
2021-08-16Will the positive and negative poles of the DC cooling fan burn if connected reversely?
2021-09-13Why do cooling fan manufacturers want to get an air volume tester
2021-08-20Why are small fans difficult for manufacturers of cooling fans to design temperature control and spe
2021-08-27Discussion on whether the computer power fan is muted
2021-10-25Micro Fan - What kind of equipment are cooling fans mainly used in?
2022-03-15Why do ultra-thin 2006 cooling fans often have noise problems?
2021-10-11How long is the life of 4010 DC fan with high air volume?
2021-08-23What is the effect of the waterproof fan?
2021-11-03Analysis of the source of DC fan noise
2021-11-16Ubiquitous computer cooling fan
2022-04-14Can the inventory of the cooling fan manufacturer be purchased?
2021-08-09How do manufacturers do dust-proof cooling fans?
2022-02-14How to choose a cooling fan to be more silent?
2021-09-02What is the reason why the cooling fan in the air purifier does not rotate?
2021-12-17What effect does jitter have on performance when the cooling fan is running?
2021-12-20What are the protection requirements for the cooling fan of the charging pile?
2021-08-19Do you know what are the commonly used bearings for cooling fans?
2022-03-09About the waterproof design of the cooling fan of the charging pile cabinet?
2021-08-16The parameters of the cooling fan of the Antminer are revealed, and the price is unbelievably low
2021-12-07Smart toilet cooling fan cleaning tips
2022-04-18What is the reason for the slow start of the electric fan
2022-04-27Is the PWM function of the DC cooling fan design quieter?
2021-08-25Cooling fan manufacturers tell you the source and solution of noise
2022-03-08It may be the driving force behind the noise of the cooling fan!
2021-08-04Why are most of the current cameras with infrared function
2021-09-10How to choose the current and voltage sensor power supply?
2022-04-13Why do cooling fan manufacturers have to order several samples?
2021-09-09The three-phase star connection of the DC cooling fan has a variable frequency motor control circuit
2022-03-17Which frameless cooling fan or framed cooling fan has the largest air volume?
2021-08-06DC fan suppliers discuss with you the main factors of fan cooling
2022-03-10What is the main reason for the quality of the declassified cooling fan?
2021-08-04Why is the 4010DC cooling fan so cheap?
2021-08-24How is DC fan better than AC fan?
2022-01-06About the cause and treatment of DC fan noise
2021-11-19Power saving tips for electric fans
2022-05-06Which type of cooling fan is prone to noise?
2021-11-10Application field of DC fan
2021-11-05Do you know how the fan works?
2022-04-26Is it sufficient to increase the speed of the high-volume cooling fan?
2021-09-13What is the method of controlling and adjusting the speed of the cooling fan?
2021-10-15Factors for the rapid rise of a large number of domestic excellent DC fan brands
2022-03-09Preventing Excessive Vibration of Industrial Equipment Cooling Fans and Vibration Reduction Scheme
2022-05-18How to remove the cooling fan on a desktop computer?
2022-03-23increase the speed of the high-volume cooling fan?
2021-12-09Analysis of the influence of the installation method of the cooling fan on the life?
2021-12-01Why does the ultra-thin cooling fan 3007 often have noise problems?
2021-09-26DC fan permanent magnet motor has excellent controllability advantages
2022-03-09Where are the current weaknesses of domestic cooling fan manufacturers?
2021-08-20Where are the cooling fan manufacturers mainly concentrated
2021-09-15Will the power cord of the cooling fan burn if it is connected upside down?
2021-08-09Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-24What is the difference between a DC cooling fan and an AC cooling fan?
2021-10-08How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2022-02-1510MM thick cooling fan, what is a strange phenomenon in the industry
2022-01-19What effect does jitter have on performance when the cooling fan is running?
2021-09-14Can waterproof fans work at low temperatures?
2021-11-01What is the working principle of the DC fan coil unit?
2022-03-15Teach you how to use a DC fan
2022-05-12Will the 12V cooling fan be damaged if the voltage is lower than the rated voltage?
2021-11-11Electric fan: how high temperature and physiology interact
2021-11-24What types of cooling fans are there?
2022-03-24Small, tiny, ultra-thin cooling fan the size of a fingertip
2022-04-12Troubleshooting method for notebook CPU cooling fan
2021-10-25the current cameras with infrared function
2021-12-09DC fan permanent magnet motor has excellent controllability advantages
2022-03-11How to fix the slow start of the electric fan
2022-04-27Will the 12V cooling fan be damaged if the voltage is lower than the rated voltage?
2021-11-16Disassemble the components of the cooling fan
2022-04-22What is the difference between a DC fan and an AC fan?
2022-03-01Can the cooling fan be dustproof?
2021-10-19What are the 4 wires of the computer CPU cooling fan?
2021-09-01What determines the price of a DC fan
2021-10-28What does high frequency microwave PCB circuit board exposure do?
2021-09-14Analysis on whether the air outlet is not unblocked has an effect on the cooling fan?
2021-10-14Why is there a quantity requirement for the cooling fan?
2021-10-26What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-23How does the DC blower work?
2022-01-14Design steps of cooling fan
2022-03-01About the air volume and pressure of the cooling fan in front of you
2021-08-06the advantages of imported cooling fans?
2021-12-10How to use only two cooling fans with three lines?
2021-09-18How to replace a laptop cooling fan
2022-03-28Why is the cooling fan developing so fast in China?
2021-08-30What is the quality of the fans used in the LED lighting industry?
2021-11-09Why does the cooling fan manufacturer have no inventory?
2021-08-10Monitoring and protection knowledge of DC fans
2022-05-13What are the requirements for the cooling fan of the charging pile?
2021-09-17What are the processes for the internal structure of the waterproof fan?
2022-02-24How are the cooling fan manufacturers under the new crown epidemic in 2021?
2021-08-03Four details to pay attention to when using a DC blower
2022-05-19Why does the cooling fan manufacturer require a minimum order quantity, isn't it a standard product?
2022-02-16What is the relationship between the power of the DC axial fan and the air volume?
2021-12-02What is the cause of the tripping of the cooling fan of medical equipment?
2022-05-18What are the processes for the internal structure of the waterproof fan?
2021-11-18What fields are DC cooling fans mainly used in
2022-04-26Can the cooling fan be silent?
2021-12-01What is the reason why the cooling fan in the air purifier does not rotate?
2021-12-21Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-22The main points of using the air purifier cooling fan
2022-04-18The main components of the electric fan
2022-07-19What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-15What are the technical treatments for the internal structure of the waterproof fan?
2021-11-08Advantages and structural defects of hydraulic fans
2022-02-19What are the factors related to the life of the cooling fan?
2021-10-14Will the positive and negative poles of the DC cooling fan burn if connected reversely?
2022-04-20Why is it difficult for manufacturers of small fans to design temperature control and speed regulati
2021-08-27What are the characteristics of the charging pile cabinet fan?
2021-08-18Which is better, AC fan or DC fan?
2022-01-05Talk about the reason why the cooling fan does not turn
2021-10-21What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-24What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-29How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2021-08-11electric fan
2022-04-21Safe operation and long service life is a major feature of DC blower products
2022-04-11Reasons and solutions for the electric fan not turning
2022-04-06The structure of the electric fan
2022-03-22What is the difference between ball bearings and oil-impregnated bearings for cooling fans?
2021-11-15What are the advantages and characteristics of the DC fan produced?
2022-03-04The working principle of silicone oil fan
2021-11-26How to increase the air volume/wind/pressure of the cooling fan?
2022-02-18Learn about monitoring and protection of DC fans
2022-04-08Axial fans and centrifugal fans
2022-05-16Analysis of the failure and cause analysis of the cooling fan
2021-10-13How can the Raspberry Pi 3rd generation DC fan 3007 be quieter?
2021-08-26Can the speed of the DC fan be adjusted?
2021-11-02Does the cooling fan work at low temperature have any effect?
2021-08-13How do manufacturers do dust-proof cooling fans?
2022-02-22What are the requirements for non-standard samples of axial flow cooling fan manufacturers?
2021-08-27What are the processes for the internal structure of the waterproof fan?
2021-11-23Share DC fan speed with temperature control function
2022-03-03How long is the life of the DC fan with high air volume?
2022-02-28Factors for the rapid rise of a large number of domestic excellent DC fan brands
2022-03-14Can the DC cooling fan vibrate with high intensity?
2021-09-28What is the difference between a DC cooling fan and an AC cooling fan?
2021-09-07What is the air volume unit conversion for DC cooling fans?
2021-12-03Teach you how to use a DC fan
2022-04-07Characteristics of DC Blowers
2022-05-13Features of DC blower
2021-10-26Noise formation and treatment of cooling fan?
2022-05-20What effect does jitter have on performance when the cooling fan is running?
2022-01-24What are the advantages of imported cooling fans?
2021-09-09What are the processes for the internal structure of the waterproof fan?
2021-11-18Reasons and maintenance methods of electric fans not rotating
2022-04-01Cooling fan manufacturer Chengda shares with you the cleaning skills of fans
2022-03-10Is it possible to install the computer cooling fan backwards?
2021-11-09What are the processes for the internal structure of the waterproof fan?
2021-11-11What are the factors related to the life of the cooling fan?
2021-10-18What is the root cause of the cooling fan failure?
2021-11-19Do you know what are the commonly used bearings for cooling fans?
2022-03-14the speed of the cooling fan?
2021-12-13Did you know that the air is continuously recirculated in the unit of the DC fan coil unit?
2022-03-18What is the root cause of the cooling fan failure?
2021-11-23The core difference between 4010 cooling fan and 4020 cooling fan
2021-08-05How to solve the noise of the cooling fan of the mining machine chassis?
2021-08-12Application of Photodiode
2021-12-08Why is the radiator fan that is exhausted to dissipate heat more easily than the blower
2021-09-16What are the voltage specifications of the DC cooling fan
2021-11-02How to use electric fan for baby
2022-05-09
Link: Rubber 3D print
Tel: +86-0755-28035808
Fax: +86-0755-28035808
Phone/Wechat: 0086-18038069461
E-mail: yyh88@snowfan.com.cn
Address: No.3 Factory Building ,DiYin Industrial Zone ,Kukeng Community ,Guanlan Street ,Longhua District ,Shenzhen
About Us
Products
Application
Support
News
Contact
中
