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CN-224228916-U - Power module fan fault detection system

CN224228916UCN 224228916 UCN224228916 UCN 224228916UCN-224228916-U

Abstract

The power module fan fault detection system comprises a switching terminal, a fault detection device, a power device and a PWM control device, wherein the switching terminal comprises a first group of switching ports, a second group of switching ports, a third group of switching ports and a fourth group of switching ports, the first group of switching ports are connected with a circuit group of a first fan, the second group of switching ports are connected with a circuit group of a second fan, the power device is used for supplying power to the first fan and the second fan, the PWM control device is used for providing PWM control signals for the first fan and the second fan, and the fault detection device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for automatically detecting faults of the first fan and the second fan and preventing the power module from being damaged due to fan faults.

Inventors

  • LIU BING
  • GUO XIAOLIANG
  • FU CAI

Assignees

  • 深圳市优优绿能股份有限公司

Dates

Publication Date
20260512
Application Date
20250725

Claims (10)

  1. 1. The power module fan fault detection system is characterized by comprising a switching terminal, a fault detection device, a power supply device and a PWM control device; The switching terminal comprises a first group of switching ports, a second group of switching ports, a third group of switching ports and a fourth group of switching ports, wherein the first group of switching ports are communicated with the third group of switching ports, and the second group of switching ports are communicated with the fourth group of switching ports; the first group of switching ports are connected with the circuit group of the first fan, and the second group of switching ports are connected with the circuit group of the second fan; The power supply device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for supplying power to the first fan and the second fan; The PWM control device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for providing PWM control signals for the first fan and the second fan; The fault detection device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for detecting faults of the first fan and the second fan.
  2. 2. The power module fan fault detection system of claim 1, wherein the fault detection means comprises current detection means and voltage detection means; The current detection device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for detecting first faults of the first fan and the second fan; the voltage detection device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for detecting second faults of the first fan and the second fan.
  3. 3. The power module fan fault detection system of claim 2, wherein the first fan circuit set includes a first power line, a first RD alarm line, a first PWM signal line, and a first ground line, and the second fan circuit set includes a second power line, a second RD alarm line, a second PWM signal line, and a second ground line.
  4. 4. The power module fan fault detection system of claim 3, wherein the first set of switch ports comprises a first power port, a first PWM port, a first RD port, and a first ground port, the second set of switch ports comprises a second power port, a second PWM port, a second RD port, and a second ground port, the third set of switch ports comprises a third power port, a third PWM port, a third RD port, and a third ground port, and the fourth set of switch ports comprises a fourth power port, a fourth PWM port, a fourth RD port, and a fourth ground port.
  5. 5. The power module fan fault detection system of claim 4, wherein the first power line is connected to the first power port, the second power line is connected to the second power port, the first PWM signal line is connected to the first PWM port, the second PWM signal line is connected to the second PWM port, the first RD alert line is connected to the first RD port, the second RD alert line is connected to the second RD port, the first ground line is connected to the first ground port, and the second ground line is connected to the second ground port.
  6. 6. The power module fan fault detection system of claim 5, wherein the current detection device comprises a first current detection module and a second current detection module; The first current detection module is connected between the positive electrode of the power supply device and the third power supply port and is used for detecting a first type fault of the first fan; The second current detection module is connected between the positive pole of the power supply device and the fourth power supply port and is used for detecting first type faults of the second fan.
  7. 7. The power module fan fault detection system of claim 5, wherein the voltage detection device comprises a first voltage detection module and a second voltage detection module; The first voltage detection module is connected between the third RD port and the third ground port for detecting a second type of failure of the first fan; The second voltage detection module is connected between the fourth RD port and the fourth ground port for detecting a second type of failure of the second fan.
  8. 8. The power module fan fault detection system is characterized by comprising a first switching terminal, a second switching terminal, a third switching terminal, a control device and a voltage detection device; The first transfer terminal comprises a first group of transfer ports, a second group of transfer ports, a third group of transfer ports and a fourth group of transfer ports, the first group of transfer ports are communicated with the third group of transfer ports, and the second group of transfer ports are communicated with the fourth group of transfer ports; the second switching terminal comprises a fifth group of switching ports, a sixth group of switching ports, a seventh group of switching ports and an eighth group of switching ports, the fifth group of switching ports are communicated with the seventh group of switching ports, and the sixth group of switching ports are communicated with the eighth group of switching ports; The third transfer terminal comprises a ninth group of transfer ports, a tenth group of transfer ports, an eleventh group of transfer ports, a twelfth group of transfer ports, a thirteenth group of transfer ports, a fourteenth group of transfer ports, a fifteenth group of transfer ports and a sixteenth group of transfer ports, wherein the ninth group of transfer ports are communicated with the eleventh group of transfer ports, the tenth group of transfer ports are communicated with the twelfth group of transfer ports, the thirteenth group of transfer ports are communicated with the fifteenth group of transfer ports, and the fourteenth group of transfer ports are communicated with the sixteenth group of transfer ports; the first group of transfer ports are connected with the line group of the first fan, the second group of transfer ports are connected with the line group of the second fan, the fifth group of transfer ports are connected with the line group of the third fan, the sixth group of transfer ports are connected with the line group of the fourth fan, the third group of transfer ports are communicated with the ninth group of transfer ports, the fourth group of transfer ports are communicated with the tenth group of transfer ports, the seventh group of transfer ports are communicated with the thirteenth group of transfer ports, and the eighth group of transfer ports are communicated with the fourteenth group of transfer ports; The eleventh group of transfer ports, the twelfth group of transfer ports, the fifteenth group of transfer ports and the sixteenth group of transfer ports are connected with the control device; The control device is connected with an eleventh group of switching ports, a twelfth group of switching ports, a fifteenth group of switching ports and a sixteenth group of switching ports of the third switching terminal and is used for providing power supply and PWM control signals for the first fan, the second fan, the third fan and the fourth fan; The voltage detection device is connected with an eleventh group of switching ports, a twelfth group of switching ports, a fifteenth group of switching ports and a sixteenth group of switching ports of the third switching terminal and is used for detecting open-circuit faults of the first fan, the second fan, the third fan and the fourth fan.
  9. 9. The power module fan fault detection system of claim 8, further comprising a power analyzer coupled to the control device for generating input power to the first fan, the second fan, the third fan, and the fourth fan based on the PWM control signal.
  10. 10. The power module fan fault detection system of claim 9, wherein each set of switch ports includes a power port, a PWM port, a RD port, and a ground port, respectively; The first end of the voltage detection device is connected with the RD ports of the eleventh group of switching ports, the RD ports of the twelfth group of switching ports, the RD ports of the fifteenth group of switching ports and the RD ports of the sixteenth group of switching ports; the second end of the voltage detection device is connected with the grounding port of the eleventh group of switching ports, the grounding port of the twelfth group of switching ports, the grounding port of the fifteenth group of switching ports and the grounding port of the sixteenth group of switching ports; The power ports of the eleventh group of switching ports, the twelfth group of switching ports, the fifteenth group of switching ports and the sixteenth group of switching ports are connected with the power output ports of the control device; the PWM ports of the eleventh set of switching ports, the PWM ports of the twelfth set of switching ports, the PWM ports of the fifteenth set of switching ports and the PWM ports of the sixteenth set of switching ports are connected with the PWM output ports of the control device; The RD ports of the eleventh group of switch ports, the RD ports of the twelfth group of switch ports, the RD ports of the fifteenth group of switch ports and the RD ports of the sixteenth group of switch ports are connected with the RD output ports of the control device; The ground port of the eleventh set of switch ports, the ground port of the twelfth set of switch ports, the ground port of the fifteenth set of switch ports, and the ground port of the sixteenth set of switch ports are connected to the ground terminal of the control device.

Description

Power module fan fault detection system Technical Field The utility model relates to the field of power supply modules, in particular to a power supply module fan fault detection system. Background The power module generally uses a direct current fan to dissipate heat, and under normal conditions, a fan wire is directly connected to the power module for use. A typical dc fan outputs different signals through different terminals to indicate different faults. In some special scenarios, it may be necessary to reconnect the fans, such as by connecting multiple fans to the same adapter and then installing them into the power module. In this process, fan failure may occur due to poor cable processing and installation. These faults, when severe, may affect the heat dissipation of the power module, causing damage to the power module. Accordingly, there is a need for a system for automatically detecting fan failure by those skilled in the art. Disclosure of utility model The utility model aims to solve the technical problems of the prior art, and provides a power module fan fault detection system which can be used for automatically detecting fan faults and preventing the power module from being damaged due to the fan faults. The utility model solves the technical problems by adopting the technical scheme that a power module fan fault detection system is constructed and comprises a switching terminal, a fault detection device, a power supply device and a PWM control device; The switching terminal comprises a first group of switching ports, a second group of switching ports, a third group of switching ports and a fourth group of switching ports, wherein the first group of switching ports are communicated with the third group of switching ports, and the second group of switching ports are communicated with the fourth group of switching ports; the first group of switching ports are connected with the circuit group of the first fan, and the second group of switching ports are connected with the circuit group of the second fan; The power supply device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for supplying power to the first fan and the second fan; The PWM control device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for providing PWM control signals for the first fan and the second fan; The fault detection device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for detecting faults of the first fan and the second fan. In the power module fan fault detection system of the utility model, the fault detection device comprises a current detection device and a voltage detection device; The current detection device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for detecting first faults of the first fan and the second fan; the voltage detection device is connected between the third group of switching ports and the fourth group of switching ports of the switching terminal and is used for detecting second faults of the first fan and the second fan. In the power module fan fault detection system of the utility model, the circuit group of the first fan comprises a first power line, a first RD alarm line, a first PWM signal line and a first grounding line, and the circuit group of the second fan comprises a second power line, a second RD alarm line, a second PWM signal line and a second grounding line. In the power module fan fault detection system, the first group of switching ports comprises a first power port, a first PWM port, a first RD port and a first grounding port, the second group of switching ports comprises a second power port, a second PWM port, a second RD port and a second grounding port, the third group of switching ports comprises a third power port, a third PWM port, a third RD port and a third grounding port, and the fourth group of switching ports comprises a fourth power port, a fourth PWM port, a fourth RD port and a fourth grounding port. In the power module fan fault detection system of the present utility model, the first power line is connected to the first power port, the second power line is connected to the second power port, the first PWM signal line is connected to the first PWM port, the second PWM signal line is connected to the second PWM port, the first RD alarm line is connected to the first RD port, the second RD alarm line is connected to the second RD port, the first ground line is connected to the first ground port, and the second ground line is connected to the second ground port. In the power module fan fault detection system of the present utility model, the current detection device includes a first current detection module and a second current