Search

CN-224204149-U - Heat radiation structure and heat radiation battery pack

CN224204149UCN 224204149 UCN224204149 UCN 224204149UCN-224204149-U

Abstract

The utility model discloses a heat radiation structure and a heat radiation battery pack, and relates to the technical field of battery pack heat radiation, wherein the heat radiation structure comprises a heat radiation component, the heat radiation component comprises a heat radiation main body and a heat conduction plate, the heat conduction plate is used for connecting the battery pack and transmitting heat generated by the battery pack, and the heat radiation main body and the heat conduction plate are enclosed to form a heat radiation cavity; the heat conducting plate can transfer heat generated by the battery pack to the heat dissipation cavity. The technical scheme provided by the utility model can solve the problems that the battery pack is in a long-term working state in the running process of the new energy automobile, heat accumulation is easy to cause, the battery pack is damaged, and serious safety accidents such as battery short circuit and fire are possibly caused.

Inventors

  • LIU QIMING
  • CHEN SHUDONG
  • LIN CAILAN
  • LV JIAN

Assignees

  • 深圳鹏程无限新能源有限公司

Dates

Publication Date
20260505
Application Date
20250327

Claims (10)

  1. 1. A heat dissipation structure for a battery pack, comprising: The heat dissipation assembly (1), the heat dissipation assembly (1) comprises a heat dissipation main body (11) and a heat conduction plate (12), the heat conduction plate (12) is used for being connected with a battery pack and transmitting heat generated by the battery pack, the heat dissipation main body (11) and the heat conduction plate (12) are enclosed to form a heat dissipation cavity (1 a), and the heat conduction plate (12) can transmit the heat generated by the battery pack to the heat dissipation cavity (1 a).
  2. 2. The heat dissipation structure as defined in claim 1, wherein the heat dissipation main body (11) is provided with an air inlet (1 b) and an air outlet (1 c), the air inlet (1 b) and the air outlet (1 c) are both located on the side wall of the heat dissipation main body (11), and the air inlet (1 b) and the air outlet (1 c) are both communicated with the heat dissipation cavity (1 a) and the outside.
  3. 3. The heat dissipating structure according to claim 2, wherein the heat dissipating assembly (1) has a heat dissipating fin (13), the heat dissipating fin (13) connecting the heat conducting plate (12) and the heat dissipating body (11), the heat dissipating fin (13) being disposed along a direction from the air inlet (1 b) to the air outlet (1 c).
  4. 4. A heat dissipating structure according to claim 3, wherein said heat dissipating assembly (1) comprises a plurality of said heat dissipating fins (13), each of said heat dissipating fins (13) being connected to said heat conducting plate (12) and said heat dissipating body (11), all of said heat dissipating fins (13) being arranged in a direction from said air inlet (1 b) to said air outlet (1 c).
  5. 5. The heat dissipation structure as defined in any one of claims 1 to 4, wherein the heat dissipation assembly (1) includes a liquid storage tank (14), a cooling pipe (15), and a circulation pump (16), both ends of the cooling pipe (15) are communicated with the liquid storage tank (14), the circulation pump (16) connects the liquid storage tank (14) and the cooling pipe (15), and the circulation pump (16) can circulate the cooling liquid in the liquid storage tank (14) in the cooling pipe (15).
  6. 6. The heat dissipating structure according to claim 5, wherein the cooling tube (15) is provided in a spiral shape to the heat dissipating body (11), and the cooling tube (15) is located in the heat dissipating cavity (1 a).
  7. 7. The heat dissipating structure according to any one of claims 1 to 4, further comprising a shielding member (2), wherein the shielding member (2) is connected to the heat dissipating body (11), and wherein the shielding member (2) is located at a side of the heat dissipating body (11) facing away from the heat conducting plate (12).
  8. 8. The heat dissipation structure as defined in claim 7, wherein a protection cavity (2 a) is formed in the protection member (2), and the heat dissipation structure further comprises a buffer member (3), and the buffer member (3) is located in the protection cavity (2 a) and abuts against an inner wall of the protection cavity (2 a).
  9. 9. The heat dissipation structure as defined in claim 8, wherein at least two buffer plates (31) are provided on the buffer member (3) in a protruding manner, each buffer plate (31) is connected to the protection member (2), and the two opposite buffer plates (31) are disposed at an obtuse angle.
  10. 10. A heat-dissipating battery pack comprising the heat-dissipating structure according to any one of claims 1 to 9.

Description

Heat radiation structure and heat radiation battery pack Technical Field The utility model relates to the technical field of heat dissipation of battery packs, in particular to a heat dissipation structure and a heat dissipation battery pack. Background The new energy lithium battery pack is taken as a core power component of the new energy automobile, and the importance of the new energy lithium battery pack is increasingly highlighted with the high importance of global environmental protection and sustainable development and the rapid development of the new energy automobile market in recent years. The lithium battery pack has the advantages of high energy density, high voltage platform, long cycle life, relatively low self-discharge rate and the like, becomes a first-choice power source of the new energy automobile, can provide durable and stable power support for the automobile, and effectively meets the requirements of the new energy automobile on endurance mileage and performance. However, in practical applications, the new energy lithium battery pack faces many challenges, and among them, the problem of heat dissipation of the battery is particularly remarkable. Because the new energy automobile is in the state of long-term work in the driving process, the battery pack is easy to cause heat accumulation, and then the battery pack is damaged, and serious safety accidents such as battery short circuit, fire and the like can be possibly caused, so that the life safety and property of drivers and passengers are greatly threatened. Disclosure of utility model The utility model mainly aims to provide a heat radiation structure and a heat radiation battery pack, and aims to solve the problems that the battery pack is in a long-term working state in the running process of a new energy automobile, heat accumulation is easy to cause, the battery pack is damaged, and serious safety accidents such as battery short circuit and fire are possibly caused. In order to achieve the above purpose, the heat dissipation structure provided by the utility model comprises a heat dissipation assembly, wherein the heat dissipation assembly comprises a heat dissipation main body and a heat conduction plate, the heat conduction plate is used for being connected with a battery pack and transmitting heat generated by the battery pack, the heat dissipation main body and the heat conduction plate are enclosed to form a heat dissipation cavity, and the heat conduction plate can transmit the heat generated by the battery pack to the heat dissipation cavity. In an embodiment, the heat dissipation main body is provided with an air inlet and an air outlet, the air inlet and the air outlet are both positioned on the side wall of the heat dissipation main body, and the air inlet and the air outlet are both communicated with the heat dissipation cavity and the outside. In an embodiment, the heat dissipation assembly is provided with a heat dissipation fin, the heat dissipation fin is connected with the heat conduction plate and the heat dissipation main body, and the heat dissipation fin is arranged along the direction from the air inlet to the air outlet. In an embodiment, the heat dissipation assembly includes a plurality of heat dissipation fins, each of the heat dissipation fins is connected to the heat conduction plate and the heat dissipation main body, and all the heat dissipation fins are disposed along a direction from the air inlet to the air outlet. In an embodiment, the heat dissipation assembly comprises a liquid storage tank, a cooling pipe and a circulating pump, wherein both ends of the cooling pipe are communicated with the liquid storage tank, the circulating pump is connected with the liquid storage tank and the cooling pipe, and the circulating pump can enable cooling liquid in the liquid storage tank to circulate in the cooling pipe. In an embodiment, the cooling tube is spirally arranged in the heat dissipation main body, and the cooling tube is positioned in the heat dissipation cavity. In an embodiment, the heat dissipation structure further includes a protection member, the protection member is connected to the heat dissipation body, and the protection member is located on a side of the heat dissipation body facing away from the heat conduction plate. In an embodiment, a protection cavity is formed in the protection piece, and the heat dissipation structure further comprises a buffer piece, wherein the buffer piece is located in the protection cavity and is abutted to the inner wall of the protection cavity. In an embodiment, the buffer member is provided with at least two buffer plates in a protruding manner, each buffer plate is connected to the protecting member, and the two opposite buffer plates are arranged at an obtuse angle. The utility model also provides a heat dissipation battery pack, which comprises a heat dissipation structure. The heat radiation structure mainly comprises a heat radiation component, w