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CN-224216729-U - Cell testing device

CN224216729UCN 224216729 UCN224216729 UCN 224216729UCN-224216729-U

Abstract

The application relates to the technical field of battery testing, in particular to a battery cell testing device. The battery cell testing device comprises a testing box, a temperature control assembly and a monitoring assembly, wherein the testing box is provided with a testing cavity for testing a battery cell, the testing assembly is arranged in the testing box, the testing box is provided with a plurality of temperature control assemblies, each temperature control assembly comprises a compressor, a plurality of first loops and a plurality of first heat exchangers, the first loops are in one-to-one correspondence with the testing cavity, each first loop is connected with the compressor and at least one first heat exchanger, each testing cavity is matched with at least one first heat exchanger, the monitoring assembly comprises a controller and a first monitor, the controller is electrically connected with the first monitor, the compressor and the first heat exchangers, each testing cavity is provided with the first monitor, and the first monitor can monitor the temperature in the testing cavity. The compressors are connected with the first heat exchangers, so that the number of the compressors in the battery cell testing device is reduced, the whole battery cell testing device is saved, and the manufacturing cost and the energy consumption of the battery cell testing device are reduced.

Inventors

  • HONG MINGXING
  • ZHU YONGGAO
  • CAI HUANJIE

Assignees

  • 欣旺达动力科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250331

Claims (10)

  1. 1. A cell testing device, comprising: The test box (100), the test box (100) is provided with a test cavity (101) for testing the power supply core (1000), a test assembly (102) is arranged in the test box (100), and a plurality of test boxes (100) are arranged; a temperature control assembly (200), wherein the temperature control assembly (200) comprises a compressor (201), a plurality of first loops and a plurality of first heat exchangers (202), the first loops are in one-to-one correspondence with the test cavities (101), each first loop is connected with the compressor (201) and at least one first heat exchanger (202), the first heat exchangers (202) can refrigerate or heat and regulate the temperature in the test cavities (101), and each test cavity (101) is matched with at least one first heat exchanger (202); Monitoring assembly (300), monitoring assembly (300) include controller (301) and first monitor (302), controller (301) with first monitor (302) compressor (201) with first heat exchanger (202) are all electrically connected, every test chamber (101) all is equipped with first monitor (302), first monitor (302) can monitor temperature in test chamber (101).
  2. 2. The cell testing device according to claim 1, wherein the temperature control assembly (200) further comprises a second heat exchanger (203) and a restrictor (204) each electrically connected to the controller (301), one of the second heat exchanger (203) and the first heat exchanger (202) being an evaporator, the other being a condenser, each of the first circuits being connected to the second heat exchanger (203), and in each of the first circuits the second heat exchanger (203) being connected between the compressor (201) and the first heat exchanger (202); Each first loop is connected with the throttler (204), and in each first loop, the throttler (204) is connected between the second heat exchanger (203) and the first heat exchanger (202), or a plurality of throttlers (204) are arranged, each first loop is connected with the throttler (204), and the throttler (204) is connected between the second heat exchanger (203) and the first heat exchanger (202).
  3. 3. The device of claim 1, wherein the first heat exchanger (202) is disposed in the corresponding test cavity (101), or the temperature control assembly (200) further comprises a plurality of first air channels (206) and a plurality of first fans (205), the first air channels (206) are in one-to-one correspondence and are communicated with the test cavity (101), the first fans (205) are electrically connected with the controller (301), and the first fans (205) can enable cold air flow or hot air flow generated by the first heat exchanger (202) to reach the test cavity (101) through the first air channels (206).
  4. 4. A cell testing device according to any of claims 1-3, further comprising a liquid cooling assembly (400), said liquid cooling assembly (400) comprising a plurality of liquid cooling plates (401), at least one of said liquid cooling plates (401) being provided in each of said test chambers (101), said liquid cooling plates (401) being adapted to cool said cells (1000).
  5. 5. The electrical core testing device according to claim 4, wherein the liquid cooling assembly (400) further comprises a plurality of second circuits and a refrigerant tank (402), the second circuits are provided with a plurality of refrigerant tanks (402) and are in one-to-one correspondence with the testing cavities (101), each second circuit is connected with the refrigerant tank (402), the liquid cooling plate (401) is provided with a refrigerant flow channel (4011), the liquid cooling plate (401) is connected with the corresponding second circuit, and the refrigerant flow channels (4011) are communicated with the second circuits; The monitoring assembly (300) further comprises a second monitor (303), a plurality of second monitors (303) are arranged and are electrically connected with the controller (301), each second loop is provided with the second monitor (303), and the second monitors (303) are used for monitoring the temperature of the refrigerant medium in the refrigerant box (402).
  6. 6. The electrical core testing device according to claim 5, wherein the temperature control assembly (200) further comprises a third circuit and a third heat exchanger (207), the third circuit being connected to the compressor (201), the third heat exchanger (207) being connected to the third circuit and electrically connected to the controller (301), the third heat exchanger (207) being capable of exchanging heat with a refrigerant medium within the refrigerant tank (402).
  7. 7. The electrical core testing apparatus according to claim 6, wherein the liquid cooling assembly (400) further comprises a heater (403), the heater (403) being provided in the coolant tank (402), the heater (403) being electrically connected to the controller (301) and being configured to heat the coolant medium.
  8. 8. The cell testing device according to claim 5, wherein a carrier (103) is fixedly arranged in the testing box (100), and the liquid cooling plate (401) is provided with a first installation position and a second installation position; When the liquid cooling plate (401) is positioned at the first installation position, the liquid cooling plate (401) can support the battery cell (1000) and cool the battery cell (1000); When the liquid cooling plate (401) is located at the second installation position, the liquid cooling plate (401) and the bearing piece (103) are arranged at intervals, one side, facing the liquid cooling plate (401), of the bearing piece (103) is used for supporting the battery cell (1000), and the liquid cooling plate (401) can be abutted with the battery cell (1000) and cool the battery cell (1000).
  9. 9. The battery cell testing device according to claim 8, wherein a screw (104) and a guide member (105) are disposed in the testing box (100), the screw (104) is rotatably connected to the testing box (100), the liquid cooling plate (401) is in screwed connection with the screw (104), the liquid cooling plate (401) is further in guided connection with the guide member (105), and the screw (104) can rotate and enable the liquid cooling plate (401) to approach or separate from the bearing member (103).
  10. 10. The device for testing the battery cells according to claim 5, wherein the testing assembly (102) comprises a charge-discharge testing module (1021), the charge-discharge testing module (1021) is used for connecting the battery cells (1000) and performing charge-discharge testing, the device for testing the battery cells further comprises a rack (500), and all the testing boxes (100) are arranged on the rack (500).

Description

Cell testing device Technical Field The application relates to the technical field of battery testing, in particular to a battery cell testing device. Background In traditional electric core testing arrangement, the electric core is put into the test box, and test module carries out various tests such as charge and discharge to the electric core, because the electric core exothermic can lead to the environmental temperature in the test box to not satisfy the test environment requirement when charge and discharge, therefore need dispose compressor and evaporimeter to every test box, regulate and control the temperature of test box through the evaporimeter, just so lead to the volume of test box and holistic electric core testing arrangement's volume great, more occupation to the field space, a plurality of compressors have also raised cost and energy consumption simultaneously, control to manufacturing cost is very unfavorable. Disclosure of utility model In order to solve the above problems, an embodiment of the present utility model provides a device for testing a battery cell. The test box is provided with a test cavity for testing the power supply core, a test assembly is arranged in the test box, and a plurality of test boxes are arranged; The temperature control assembly comprises a compressor, a plurality of first loops and a plurality of first heat exchangers, the first loops are in one-to-one correspondence with the test cavities, each first loop is connected with the compressor and at least one first heat exchanger, the first heat exchangers can refrigerate or heat and adjust the temperature in the test cavity, and each test cavity is matched with at least one first heat exchanger; The monitoring assembly comprises a controller and a first monitor, wherein the controller is electrically connected with the first monitor, the compressor and the first heat exchanger, each test cavity is provided with the first monitor, and the first monitor can monitor the temperature in the test cavity. Optionally, the temperature control assembly further includes a second heat exchanger and a throttle, each of which is electrically connected to the controller, one of the second heat exchanger and the first heat exchanger is an evaporator, the other is a condenser, each of the first circuits is connected to the second heat exchanger, and in each of the first circuits, the second heat exchanger is connected between the compressor and the first heat exchanger; Each first loop is connected with the throttler, and in each first loop, the throttler is connected between the second heat exchanger and the first heat exchanger, or a plurality of throttlers are arranged, each first loop is connected with the throttler, and the throttler is connected between the second heat exchanger and the first heat exchanger. Optionally, the first heat exchanger is arranged in the corresponding test cavity, or the temperature control assembly further comprises a plurality of first air channels and a plurality of first fans, the first air channels are in one-to-one correspondence and are communicated with the test cavity, the first fans are electrically connected with the controller, and the first fans can enable cold air flow or hot air flow generated by the first heat exchanger to reach the test cavity through the first air channels. Optionally, the battery cell testing device further comprises a liquid cooling assembly, the liquid cooling assembly comprises a plurality of liquid cooling plates, at least one liquid cooling plate is arranged in each testing cavity, and the liquid cooling plates are used for cooling the battery cells. Optionally, the liquid cooling assembly further comprises a plurality of second loops and a refrigerant box, the second loops are provided with a plurality of second loops and correspond to the test cavities one by one, the refrigerant box is used for storing refrigerant media, each second loop is connected with the refrigerant box, the liquid cooling plate is provided with a refrigerant flow channel, the liquid cooling plate is connected to the corresponding second loop, and the refrigerant flow channels are communicated with the second loops; The monitoring assembly further comprises a plurality of second monitors, each second monitor is electrically connected with the controller, each second loop is provided with a second monitor, and the second monitors are used for monitoring the temperature of the refrigerant medium in the refrigerant box. Optionally, the temperature control assembly further includes a third loop and a third heat exchanger, the third loop is connected with the compressor, the third heat exchanger is connected with the third loop and electrically connected with the controller, and the third heat exchanger can exchange heat with a refrigerant medium in the refrigerant box. Optionally, the liquid cooling assembly further includes a heater, the heater is disposed in the refrigerant box, and t