CN-224232706-U - Heat abstractor, battery package system and vehicle of vehicle battery package

CN224232706UCN 224232706 UCN224232706 UCN 224232706UCN-224232706-U

Abstract

The application relates to the technical field of vehicle battery pack heat dissipation and discloses a heat dissipation device of a vehicle battery pack, a battery pack system and a vehicle, wherein the device comprises a heat dissipation box, a heat dissipation device and a vehicle, wherein a containing cavity is formed in the heat dissipation box, the containing cavity is used for containing the battery pack, a liquid storage cavity is formed in the wall of the heat dissipation box, and the liquid storage cavity is used for introducing cooling liquid so as to dissipate heat of the battery pack through the cooling liquid; the liquid storage device is communicated with the liquid storage cavity and used for storing cooling liquid, and the liquid storage device is further used for guiding the cooling liquid into the liquid storage cavity to radiate heat of the battery pack when the current temperature of the battery pack is higher than the preset temperature. Therefore, through the arrangement of the heat dissipation box, heat dissipation can be carried out by leading in cooling liquid when the temperature of the battery pack is higher, and the heat dissipation requirement of the battery pack can be met.

Inventors

BAI RUI
LIU ZHUOMING
LIU XIANGSHANG
LIU CHANGDONG
CUI XIULI

Assignees

宁波因诺智能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250326

Claims (10)

1. A heat sink for a vehicle battery pack, comprising: The heat dissipation box is provided with a containing cavity for containing the battery pack, and a liquid storage cavity is formed in the box body wall of the heat dissipation box in a hollow mode and is used for guiding cooling liquid to dissipate heat of the battery pack through the cooling liquid; The liquid storage device is communicated with the liquid storage cavity and used for storing cooling liquid, and the liquid storage device is also used for guiding the cooling liquid into the liquid storage cavity to radiate heat of the battery pack when the current temperature of the battery pack is higher than a preset temperature.
2. The heat sink of claim 1, wherein, The heat dissipation box comprises a bottom wall, a top wall and side walls, the bottom wall, the top wall and the side walls of the heat dissipation box are enclosed to form the accommodating cavity, and the bottom wall is opposite to the bottom of the battery pack; The liquid storage cavity comprises a first liquid storage area and a second liquid storage area which are isolated from each other, the first liquid storage area is arranged in the bottom wall, and the liquid storage equipment is used for guiding the cooling liquid into the first liquid storage area when the current temperature of the battery pack is higher than the preset temperature and lower than the limiting temperature.
3. The heat sink of claim 2, wherein, The liquid storage device comprises a liquid storage device and a water pump, wherein the water pump is respectively communicated with the liquid storage device, the first liquid storage area and the second liquid storage area, and the water pump is used for pumping cooling liquid in the liquid storage device to the first liquid storage area and/or the second liquid storage area.
4. The heat sink of claim 1, wherein, The heat dissipation device further comprises a heat radiator, the liquid storage equipment and the liquid storage cavity form a heat dissipation loop, the liquid storage equipment is further used for realizing circulation of the cooling liquid in the heat dissipation loop, and the heat radiator is used for dissipating heat of the cooling liquid in the heat dissipation loop.
5. The heat sink of claim 1, wherein, The heat dissipation box comprises an outer shell and an inner shell, wherein the outer shell and the inner shell are separated to form the liquid storage cavity, and the outer shell is provided with a first heat dissipation structure and/or the inner shell is provided with a second heat dissipation structure; the first heat dissipation structure is used for being in contact with air to dissipate heat of the heat dissipation box, and the second heat dissipation structure is used for being in contact with the battery pack to dissipate heat of the battery pack.
6. The heat sink of claim 5, wherein, The cooling device comprises an outer shell, an inner shell, a liquid storage cavity, a cooling support structure and a cooling support structure, wherein the cooling support structure is arranged in the liquid storage cavity and is connected with the outer shell and the inner shell respectively and used for supporting the liquid storage cavity, and the cooling support structure is also used for guiding heat of cooling liquid into the outer shell to be emitted.
7. The heat sink of claim 1, wherein, The heat dissipation device further comprises a warm air blower, the warm air blower is communicated with the liquid storage cavity, and the warm air blower is used for forming warm air and guiding the warm air into the liquid storage cavity without the cooling liquid when the current ambient temperature is lower than the preset ambient temperature so as to heat the battery pack.
8. The heat sink of claim 1, wherein, The heat dissipation device further comprises a controller, wherein the controller is connected with the liquid storage device and is used for controlling the liquid storage device to guide the cooling liquid into the liquid storage cavity to dissipate heat of the battery pack when the current temperature of the battery pack is higher than the preset temperature; and the control device is also used for controlling the liquid storage equipment to pump the cooling liquid in the liquid storage cavity into the liquid storage equipment when the current ambient temperature is lower than the preset ambient temperature.
9. A battery pack system of a vehicle, comprising: The heat dissipating device of the vehicle battery pack according to any one of claims 1 to 8; The battery pack is arranged in the heat dissipation device, and the heat dissipation device is used for dissipating heat of the battery pack.
10. A vehicle comprising a battery pack system of the vehicle as claimed in claim 9.

Description

Heat abstractor, battery package system and vehicle of vehicle battery package Technical Field The application relates to the technical field of vehicle battery pack heat dissipation, in particular to a heat dissipation device of a vehicle battery pack, a battery pack system and a vehicle. Background The battery pack is used as an important part of the new energy vehicle and provides driving force for running of the vehicle. The operating state of the battery pack is related to the temperature of the battery pack, and the operating state of the battery pack may be deteriorated when the temperature of the battery pack is high. Further, when the ambient temperature is low, the operating state of the battery pack is also deteriorated. In order to improve the problem, the battery pack is provided with a heat dissipation structure, and heat dissipation and heat preservation are realized through cooling liquid flowing in the heat dissipation structure. However, when the temperature of the battery pack is high, the heat dissipation structure of the battery pack cannot meet the heat dissipation requirement of the battery pack. Disclosure of utility model In view of the above, the present application provides a heat dissipation device for a vehicle battery pack, a battery pack system, and a vehicle, wherein by providing a heat dissipation box, heat dissipation can be performed by introducing a cooling liquid when the temperature of the battery pack is high, and the heat dissipation requirement of the battery pack can be satisfied. The application provides a heat dissipation device of a vehicle battery pack, which comprises a heat dissipation box, a liquid storage device and a liquid storage device, wherein the heat dissipation box is provided with a containing cavity for containing the battery pack, a liquid storage cavity is formed in the wall of the box body of the heat dissipation box, the liquid storage cavity is used for introducing cooling liquid to dissipate heat of the battery pack through the cooling liquid, the liquid storage device is communicated with the liquid storage cavity and used for storing the cooling liquid, and the liquid storage device is further used for introducing the cooling liquid into the liquid storage cavity to dissipate heat of the battery pack when the current temperature of the battery pack is higher than a preset temperature. In some embodiments, the heat dissipation box comprises a bottom wall, a top wall and a side wall, the bottom wall, the top wall and the side wall of the heat dissipation box are enclosed to form a containing cavity, the bottom wall is opposite to the bottom of the battery pack, the liquid storage cavity comprises a first liquid storage area and a second liquid storage area which are mutually isolated, the first liquid storage area is arranged in the bottom wall, and the liquid storage equipment is used for guiding cooling liquid into the first liquid storage area when the current temperature of the battery pack is higher than a preset temperature and lower than a limiting temperature. In some embodiments, the liquid storage device comprises a liquid storage device and a water pump, wherein the water pump is respectively communicated with the liquid storage device, the first liquid storage area and the second liquid storage area, and the water pump is used for pumping cooling liquid in the liquid storage device to the first liquid storage area and/or the second liquid storage area. In some embodiments, the heat dissipating device further includes a heat sink, the liquid storage device, and the liquid storage cavity form a heat dissipating loop, the liquid storage device is further configured to circulate the cooling liquid in the heat dissipating loop, and the heat sink is configured to dissipate heat of the cooling liquid in the heat dissipating loop. In some embodiments, the heat dissipation case comprises an outer shell and an inner shell, wherein the outer shell and the inner shell form a liquid storage cavity at intervals, the outer shell is provided with a first heat dissipation structure and/or the inner shell is provided with a second heat dissipation structure, the first heat dissipation structure is used for being in contact with air to dissipate heat of the heat dissipation case, and the second heat dissipation structure is used for being in contact with the battery pack to dissipate heat of the battery pack. In some embodiments, a heat dissipation supporting structure is disposed in the liquid storage cavity, and the heat dissipation supporting structure is respectively connected with the outer shell and the inner shell, and is used for supporting the liquid storage cavity, and is also used for guiding the heat of the cooling liquid into the outer shell for dissipation. In some embodiments, the heat dissipating device further comprises a warm air blower, wherein the warm air blower is communicated with the liquid storage cavity, and is used for for