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CN-224232712-U - Battery device

CN224232712UCN 224232712 UCN224232712 UCN 224232712UCN-224232712-U

Abstract

The application provides a battery device, and relates to the technical field of batteries. The battery device comprises a box body, a battery component and a liquid cooling component. The box body is provided with a containing cavity, and the battery component is arranged in the containing cavity. The battery assembly comprises a plurality of battery monomers, the liquid cooling assembly comprises a liquid guide piece, the liquid guide piece is arranged on one side of the battery monomers, the liquid guide piece is provided with at least two flow channels, and a liquid outlet of each flow channel is positioned on one side of the liquid guide piece, facing the battery monomers, and is communicated with the accommodating cavity. The inlet of the runner is provided with a control piece which is used for controlling the opening of the inlet of the runner so as to adjust the flow of the cooling medium. Therefore, more cooling medium can be introduced into the part of the battery device with higher temperature so as to quickly reduce the temperature of the battery single body, so that the temperature distribution in the battery device is uniform, and the heat dissipation efficiency and the heat dissipation effect of the battery device are improved.

Inventors

  • LIU QING
  • ZHANG WEI
  • TONG BANG
  • ZHANG KAIMING
  • Ge Bingquan
  • SUN TONGCHEN

Assignees

  • 合肥国轩高科动力能源有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (10)

  1. 1. A battery device, characterized by comprising: a housing (110), the housing (110) having a receiving cavity (111); The battery assembly (120) is arranged in the accommodating cavity (111), the battery assembly (120) comprises a plurality of battery cells (121), and the plurality of battery cells (121) are arranged in an array at intervals; The liquid cooling assembly (130), the liquid cooling assembly (130) comprises a liquid guide piece (131), the liquid guide piece (131) is arranged on one side of the battery cell (121), the liquid guide piece (131) is provided with at least two flow channels, a liquid outlet (1319) of each flow channel is positioned on one side of the liquid guide piece (131) facing the battery cell (121) and is communicated with the accommodating cavity (111), a control piece (132) is arranged at the inlet of each flow channel, and the control piece (132) is used for controlling the opening of the inlet of each flow channel so as to adjust the flow rate of a cooling medium.
  2. 2. The battery device according to claim 1, wherein the liquid guide (131) has a first liquid chamber (1316), and a protrusion structure (1317) located in the first liquid chamber (1316), the protrusion structure (1317) dividing the first liquid chamber (1316) into at least two of the flow channels.
  3. 3. The battery device according to claim 2, wherein the protrusion structure (1317) has a receiving portion (1318), an opening of the receiving portion (1318) being directed towards an inlet of the flow passage; the control member (132) comprises a sliding part (1324) and a driving part (1325), wherein the sliding part (1324) is arranged in a telescopic way relative to the opening of the accommodating part (1318), and the driving part (1325) is connected with the sliding part (1324) and is used for driving the sliding part (1324) to move in a telescopic way so as to control the opening degree of the inlet of the flow channel.
  4. 4. A battery device according to any one of claims 1-3, characterized in that the battery device has a temperature detecting member provided to the battery assembly (120) and acquiring a temperature parameter of the battery assembly (120), and a battery management system; The battery management system electrically connects the temperature sensing member and the control member (132); when the temperature parameter is greater than or equal to a preset temperature parameter, the battery management system controls the control member (132) to move so as to control the opening degree of the inlet of the flow channel.
  5. 5. The battery device according to any one of claims 1-3, wherein the liquid cooling assembly (130) further comprises a partition member (133), the partition member (133) is disposed between adjacent battery cells (121), the partition member (133) has a second liquid cavity and a hollow structure (1331), the second liquid cavity is communicated with a liquid outlet (1319) of the flow channel, and the hollow structure (1331) is respectively communicated with the second liquid cavity and the accommodating cavity (111).
  6. 6. A battery device according to any one of claims 1-3, further comprising a liquid inlet pipe (140) and a liquid outlet pipe (150), a first end of the liquid inlet pipe (140) being connected to the liquid guide (131), a second end of the liquid inlet pipe (140) extending outside the housing (110) and being adapted to be connected to an external device; The liquid outlet pipe (150) is arranged on the box body (110) so as to be communicated with the accommodating cavity (111) and the outer side of the box body (110).
  7. 7. A battery device according to any one of claims 1-3, wherein a plurality of the battery modules (120) are provided, the plurality of the battery modules (120) are arranged in an array, and the liquid guide (131) is provided between adjacent battery modules (120).
  8. 8. A battery device according to any one of claims 1-3, characterized in that the battery cell (121) has a pole (122), the pole (122) being directed towards the top of the housing (110); In the accommodating cavity (111), the cooling medium has a liquid level which is lower than the plane of the pole (122) along the direction from the bottom of the box (110) to the top of the box (110).
  9. 9. A battery device according to any one of claims 1-3, wherein the case (110) comprises a body (112) and a case cover (113), the case cover (113) being sealingly connected to the top of the body (112), the body (112) and the case cover (113) together enclosing the accommodation chamber (111).
  10. 10. A battery device according to any one of claims 1-3, further comprising a fixing member (160), the fixing member (160) being provided to the accommodation chamber (111), and the fixing member (160) being provided around the peripheral side of the battery assembly (120).

Description

Battery device Technical Field The application relates to the technical field of batteries, in particular to a battery device. Background With the continuous development of battery device technology, battery devices are increasingly used in the power field. The battery device comprises a box body and a plurality of battery monomers, wherein the battery monomers generate heat in the using process, and the battery monomers are cooled by adopting an air cooling and/or liquid cooling mode. However, heat is unevenly distributed inside the battery device, so that the heat dissipation efficiency of the battery device is difficult to improve. Disclosure of utility model The application provides a battery device, which can improve the heat dissipation efficiency of the battery device. In order to achieve the above purpose, the present application adopts the following technical scheme: the present application provides a battery device including: The box body is provided with an accommodating cavity; The battery assembly is arranged in the accommodating cavity and comprises a plurality of battery cells which are arrayed and distributed at intervals; The liquid cooling assembly comprises a liquid guide piece, the liquid guide piece is arranged on one side of the battery cell, the liquid guide piece is provided with at least two flow channels, a liquid outlet of each flow channel is positioned on one side of the liquid guide piece, which faces the battery cell, and is communicated with the accommodating cavity, and a control piece is arranged at an inlet of the flow channel and used for controlling the opening of the inlet of the flow channel so as to adjust the flow rate of a cooling medium. As an alternative embodiment, the liquid guide has a first liquid chamber and a raised structure in the first liquid chamber, the raised structure dividing the first liquid chamber into at least two of the flow channels. As an alternative embodiment, the projection structure has a receiving portion, an opening of which faces an inlet of the flow passage; The control piece comprises a sliding part and a driving part, wherein the sliding part is arranged in a telescopic way relative to the opening of the accommodating part, and the driving part is connected with the sliding part and used for driving the sliding part to move in a telescopic way so as to control the opening of the inlet of the runner. As an alternative embodiment, the battery device has a temperature detecting member and a battery management system, the temperature detecting member is provided to the battery assembly and acquires a temperature parameter of the battery assembly; The battery management system is electrically connected with the temperature detection piece and the control piece; And when the temperature parameter is greater than or equal to a preset temperature parameter, the battery management system controls the control member to move so as to control the opening of the inlet of the flow channel. As an optional implementation mode, the liquid cooling assembly further comprises a separation piece, wherein the separation piece is arranged between the adjacent battery monomers, the separation piece is provided with a second liquid cavity and a hollowed-out structure, the second liquid cavity is communicated with a liquid outlet of the flow channel, and the hollowed-out structure is respectively communicated with the second liquid cavity and the accommodating cavity. As an alternative embodiment, the battery device further comprises a liquid inlet pipe and a liquid outlet pipe, wherein the first end of the liquid inlet pipe is connected with the liquid guide piece, and the second end of the liquid inlet pipe extends to the outer side of the box body and is used for being connected with an external device; The liquid outlet pipe is arranged on the box body and is used for communicating the accommodating cavity with the outer side of the box body. As an optional implementation manner, the plurality of battery assemblies are arranged in an array, and the liquid guide piece is arranged between every two adjacent battery assemblies. As an alternative embodiment, the battery cell has a pole that faces the top of the case; In the accommodating cavity, the cooling medium has a liquid level which is lower than the plane of the pole along the direction from the bottom of the box to the top of the box. As an alternative embodiment, the case body includes a body and a case cover, the case cover is connected to the top of the body in a sealing manner, and the body and the case cover jointly enclose the accommodating cavity. As an alternative embodiment, the battery device further includes a fixing member, the fixing member is disposed in the accommodating cavity, and the fixing member is disposed around the periphery of the battery assembly. The application provides a battery device which comprises a box body, a battery assembly and a liquid cooling assembly. The box bod