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CN-224204160-U - Battery system and electric equipment

CN224204160UCN 224204160 UCN224204160 UCN 224204160UCN-224204160-U

Abstract

The embodiment of the application provides a battery system and electric equipment, and relates to the technical field of batteries, wherein the battery system comprises a battery cell group, a battery module and a control module, wherein the battery cell group comprises a plurality of sub-battery cell groups which are distributed at intervals; the cooling plates are arranged in a plurality, at least one cooling plate is arranged between two adjacent sub-cell groups and is in contact with the sub-cell groups, and the cooling plates are provided with avoiding parts which are used for providing deformation spaces for the sub-cell groups. The battery system and the electric equipment provided by the embodiment of the application solve the problem of poor cooling effect of the battery cell group in the prior art.

Inventors

  • ZHU KAILIN
  • TONG BANG
  • GAO WEI
  • ZHANG WEI
  • LIU ZHENGHAO

Assignees

  • 合肥国轩高科动力能源有限公司

Dates

Publication Date
20260505
Application Date
20250428

Claims (10)

  1. 1. A battery system, comprising: The battery cell group comprises a plurality of sub-battery cell groups (100) which are distributed at intervals; The plurality of cooling plates (200) are arranged, at least one cooling plate (200) is arranged between two adjacent sub-cell groups (100), and the cooling plates (200) are in contact with the sub-cell groups (100); the cooling plate (200) is provided with an avoidance portion, and the avoidance portion is used for providing a deformation space for the sub-cell group (100).
  2. 2. The battery system of claim 1, further comprising a plurality of thermally conductive cushions (300), the thermally conductive cushions (300) being positioned between the cooling plate (200) and the sub-cell stack (100) such that the cooling plate (200) is in contact with the sub-cell stack (100) through the thermally conductive cushions (300).
  3. 3. The battery system of claim 2, wherein the thermally conductive pad layer (300) is an elastic thermally conductive adhesive layer.
  4. 4. A battery system according to any one of claims 1-3, further comprising at least two liquid cooling pipes (400), each cooling plate (200) having a liquid cooling passage therein; At least one liquid cooling pipe (400) is communicated with one end of each liquid cooling channel in the extending direction, and at least one liquid cooling pipe (400) is communicated with the other end of each liquid cooling channel in the extending direction.
  5. 5. The battery system according to claim 4, wherein the liquid cooling pipe (400) includes a plurality of joint members (410) and a plurality of docking pipes (420), each of the joint members (410) being provided on each of the cooling plates (200) in correspondence, the inside of the joint member (410) being in communication with the liquid cooling passage, the docking pipes (420) being in communication with the inside of adjacent two of the joint members (410).
  6. 6. The battery system according to claim 5, wherein the joint member (410) includes a main body pipe (411), the main body pipe (411) being provided on the cooling plate (200), an inside of the main body pipe (411) being in communication with the liquid cooling passage; The main body pipe (411) is provided with a pipe plug (412) for abutting with the abutting pipe (420), and the inside of the pipe plug (412) is communicated with the inside of the main body pipe (411).
  7. 7. The battery system of claim 5, wherein the cooling plate (200) comprises at least one infusion tube (210) and at least one pair of clamping plates (220), the infusion tube (210) being located between two clamping plates (220) of the same pair, an interior of the infusion tube (210) being in communication with an interior of the adapter member (410), an interior of the infusion tube (210) forming the liquid cooling channel.
  8. 8. The battery system according to claim 7, wherein the fluid transfer tube (210) has at least one partition plate (212) therein, the partition plate (212) dividing the fluid cooling passage into a plurality of sub-fluid cooling passages, the plurality of sub-fluid cooling passages being distributed along a width direction of the fluid transfer tube (210); And the caliber of the sub-liquid cooling channel presents an increasing trend towards the direction close to the middle part of the sub-cell group (100).
  9. 9. The battery system according to claim 7, wherein the number of the infusion tubes (210) in the cooling plate (200) is two, and a gap (211) between the two infusion tubes (210) forms the avoiding portion, the gap (211) corresponding to a middle portion of the sub-cell group (100).
  10. 10. A powered device comprising the battery system of any of claims 1-9.

Description

Battery system and electric equipment Technical Field The application relates to the technical field of batteries, in particular to a battery system and electric equipment. Background The battery is an important component of the new energy vehicle, and as the requirements of people on travel quality are higher and higher, the high-rate charge-discharge performance is concerned by users. In the related art, the battery includes a battery cell group and a cooling plate attached to one side of the battery cell group, so that the battery cell is cooled by the cooling plate during use. However, in a working scenario where the battery meets high-rate charge and discharge performance (i.e., fast charge and fast discharge), the heat productivity of the battery cell pack increases, so that the cooling plate is difficult to meet the cooling requirement of the battery cell pack, and the cooling effect of the battery cell pack is poor. Disclosure of utility model The embodiment of the application provides a battery system and electric equipment, which are used for solving the problem of poor cooling effect of a battery cell group in the prior art. In one aspect, an embodiment of the present application provides a battery system including: the battery cell group comprises a plurality of sub-battery cell groups which are distributed at intervals; The plurality of cooling plates are arranged, at least one cooling plate is arranged between two adjacent sub-cell groups, and the cooling plates are in contact with the sub-cell groups; The cooling plate is provided with an avoidance portion, and the avoidance portion is used for providing a deformation space for the sub-battery cell group. In one possible embodiment, the cooling plate further comprises a plurality of heat conducting cushions located between the cooling plate and the sub-cell groups so that the cooling plate is in contact with the sub-cell groups through the heat conducting cushions. In one possible embodiment, the thermal conductive pad layer is an elastic thermal conductive adhesive layer. In one possible implementation manner, the cooling plate further comprises at least two liquid cooling pipes, and each cooling plate is internally provided with a liquid cooling channel; At least one liquid cooling pipe is communicated with one end of each liquid cooling channel in the extending direction, and at least one liquid cooling pipe is communicated with the other end of each liquid cooling channel in the extending direction. In one possible implementation manner, the liquid cooling pipe comprises a plurality of joint pieces and a plurality of butt joint pipes, each joint piece is correspondingly arranged on each cooling plate, the interiors of the joint pieces are communicated with the liquid cooling channels, and the butt joint pipes are communicated with the interiors of two adjacent joint pieces. In one possible embodiment, the joint member includes a main body pipe provided on the cooling plate, the inside of the main body pipe being in communication with the liquid cooling passage; The main body pipe is provided with a pipe plug for being butted with the butt joint pipe, and the inside of the pipe plug is communicated with the inside of the main body pipe. In one possible embodiment, the cooling plate includes at least one infusion tube and at least one pair of clamping plates, the infusion tube is located between the two clamping plates of the same pair, the interior of the infusion tube is communicated with the interior of the connector piece, and the interior of the infusion tube forms the liquid cooling channel. In one possible implementation manner, at least one partition board is arranged in the infusion tube, the partition board divides the liquid cooling channel into a plurality of sub liquid cooling channels, and the plurality of sub liquid cooling channels are distributed along the width direction of the infusion tube; And the caliber of the sub liquid cooling channel presents an increasing trend towards the direction close to the middle part of the sub battery cell group. In one possible implementation manner, two infusion tubes in the cooling plate are arranged, and a gap between the two infusion tubes forms the avoiding part, and the gap corresponds to the middle part of the sub-cell group. On the other hand, the embodiment of the application provides electric equipment, which comprises the battery system in any one of the embodiments. The battery system and the electric equipment provided by the embodiment of the application, wherein the battery system comprises a battery cell group, the battery cell group comprises a plurality of sub-battery cell groups which are distributed at intervals, a plurality of cooling plates are arranged, at least one cooling plate is arranged between two adjacent sub-battery cell groups and is in contact with the sub-battery cell groups, and the cooling plate is provided with an avoiding part which is used for provid