一种锂电池组散热箱
By introducing a unidirectional filter basket design into the lithium battery pack heat sink, the problem of impurities re-entering the circulation pipeline in the existing technology is solved, and the stability and efficient operation of the heat dissipation system are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-17
AI Technical Summary
In existing lithium battery heat dissipation systems, impurities can easily re-enter the circulation pipeline during cleaning of the filtration mechanism, affecting heat dissipation and system stability.
A heat dissipation box for lithium battery packs was designed, which adopts a filter basket with a one-way mechanism. The one-way mechanism prevents impurities from re-entering the circulation pipeline during cleaning. The porous structure of the filter basket and the limiting plate are used for effective filtration. The heat dissipation process is controlled by a temperature sensor and a solenoid valve.
This technology prevents impurities from re-entering the circulation pipeline when cleaning the filter mechanism, ensuring the stability and efficiency of the heat dissipation system, simplifying the maintenance process, and improving the reliability of the system.
Smart Images
Figure CN224519940U_ABST
Abstract
Claims
1. A lithium battery pack heat dissipation box comprising a battery compartment (1), characterized in that, The front end of the battery compartment (1) is integrally formed with an installation plate (5). The battery compartment (1) and the inner sidewall of the installation plate (5) are welded with reinforcing ribs (2). The top of the battery compartment (1) is fixedly installed with a battery box (3). The top opening of the battery box (3) is fixedly installed with a battery cover (4) by bolts. The installation plate (5) is equipped with a heat dissipation mechanism that penetrates to the outside of the battery compartment (1) and from the outside of the battery compartment (1) to the inside of the battery box (3). The heat dissipation mechanism is connected to a filter mechanism. The filter mechanism is used to intercept impurities contained in the return coolant. The filter mechanism is equipped with a one-way mechanism.
2. The lithium battery heat sink of claim 1, wherein, Multiple partitions (10) are fixedly installed inside the battery cover (4). The multiple partitions (10) divide the inner cavity of the battery box (3) into multiple installation chambers. A set of battery packs (11) is installed inside one of the installation chambers, and a temperature sensor is installed in each chamber. Each set of installation chambers has a heat exchange tube (12).
3. The lithium battery heat sink of claim 2, wherein, The heat dissipation mechanism includes heat exchange tubes (12), the input ends of multiple heat exchange tubes (12) are connected to a liquid inlet pipe (6), the output ends of multiple heat exchange tubes (12) are connected to a liquid outlet pipe (8), and solenoid valves (7) are installed at both the input and output ends of multiple heat exchange tubes (12). The output end of the liquid outlet pipe (8) is connected to the input end of the aluminum alloy heat sink. The aluminum alloy heat sink is connected to the input end of the filter mechanism via a pipe and to a delivery pump. The output end of the filter mechanism is connected to a return pipe (9). The output end of the return pipe (9) is connected to a cooling pump. The output end of the cooling pump is connected to the input end of the liquid inlet pipe (6). The delivery pump is mounted on the mounting plate (5).
4. The lithium battery heat sink of claim 3, wherein, The filtration mechanism includes a filter box (13), the output end of which is connected to the input end of the return pipe (9), the input end of which is connected to an aluminum alloy heat sink, a filter basket (15) for filtering the coolant entering the filter box (13) is inserted into the inner wall of the filter box (13), a round hole aligned with the input end of the filter box (13) is provided on one side plate of the filter basket (15), a one-way mechanism connected to the round hole is provided on one side plate of the filter basket (15), and a multi-hole interception net (17) is provided on the other side plate of the filter basket (15). A limiting plate (16) is provided on the two end plates of the inner wall of the filter box (13) to limit the filter basket (15), and a cover (14) is installed on the top opening of the filter box (13).
5. The heat sink for a lithium battery pack of claim 4, wherein, The one-way mechanism includes a fixed ear (19) fixedly installed on one side plate of the filter basket (15). A rotating cover (18) that covers the round hole is rotatably installed on the inner side of the fixed ear (19). Both ends of the top of the rotating cover (18) are provided with receiving grooves (21). The rotating cover (18) and the fixed ear (19) are rotatably connected by a rotating shaft (20). A torsion spring (22) is fixedly installed between the closed end of the inner wall of the receiving groove (21) and the inner side of the fixed ear (19). The torsion spring (22) is sleeved on the outer periphery of the rotating shaft (20).