A battery heat dissipation cover plate assembly
By designing a battery heat dissipation cover assembly, and utilizing structures such as connector boxes and semiconductor cooling chips, efficient heat dissipation of the battery is achieved, solving the problem of heat accumulation inside the battery casing and improving battery safety and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽国轩新能源汽车科技有限公司
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-29
AI Technical Summary
Heat buildup inside the battery casing affects the battery's operational safety and lifespan.
A battery heat dissipation cover assembly was designed, including a lower housing and an upper housing. The housing contains a heat dissipation component and a connector box. Air is blown through the connector box to accelerate the airflow of the heat dissipation component. Combined with a semiconductor cooling chip and a fan, rapid heat dissipation is achieved. A sealing structure is set between the housings to improve sealing and heat dissipation.
It effectively reduces the internal temperature of the enclosure, improves heat dissipation, and enhances the operational safety and lifespan of the battery.
Smart Images

Figure CN224304740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of batteries, and in particular to a battery heat dissipation cover assembly. Background Technology
[0002] New energy vehicles are a key area of development in my country. The main components inside these vehicles include batteries, motors, and electronic controls. Among these, the power battery, as the energy supply component, significantly impacts the overall safety and stability of the vehicle. Batteries are not only used in automobiles but also in many other electrical applications. There are various types of batteries, including lithium-ion batteries, nickel-metal hydride batteries, fuel cells, lead-acid batteries, and supercapacitors. Batteries require sealed protection through external packaging. During discharge, the battery converts chemical energy, generating internal heat. Over time, this heat can accumulate inside the casing, potentially causing overheating and affecting the battery's operational safety and lifespan. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a battery heat dissipation cover assembly to solve the problem that heat accumulation in the battery casing may affect battery life and battery operation safety.
[0004] Based on the technical problems existing in the background art, this utility model proposes a battery heat dissipation cover assembly, including a lower housing and an upper housing that closes the lower housing. Multiple battery cells are placed in the lower housing, and multiple heat dissipation components penetrating into the lower housing are installed on the upper housing. A top cover that encloses all the heat dissipation components is installed on the top of the upper housing. A plug box communicating with the interior of the top cover is provided below the top cover, and the plug box blows air between the top cover and the upper housing. In this solution, the upper and lower housings can protect the battery cells, and the heat dissipation components can provide a cooling effect to the two housings, accelerating the heat dissipation of the battery cells. The plug box can accelerate the heat dissipation of the heat dissipation components, thereby improving the heat dissipation effect of the heat dissipation components in the device.
[0005] Preferably, the plug-in box is located on the lower surface of the middle part of the top cover and protrudes from the lower surface of the top cover. The two ends of the plug-in box are connected to air inlet pipes, and ventilation slots are provided on both sides of the plug-in box. Vertical inserts are provided at both ends of the plug-in box, and the upper housing is provided with matching slots for the inserts to engage. In this solution, there is gas flow in the air inlet pipe. The gas is transmitted to the plug-in box through the air pipe and can be blown out from the ventilation slots and blown towards the heat dissipation components, thereby accelerating the airflow of the heat dissipation components and improving the cooling effect of the equipment.
[0006] Preferably, air vents are provided on both sides of the top cover; in this solution, the air vents on both sides of the top cover are used for exhaust when the ventilation slot is blown, and the plug box can quickly flow out from the air vents when it is vented, thereby improving the heat dissipation effect around the heat dissipation component.
[0007] Preferably, the upper housing is provided with multiple mounting slots for installing corresponding heat dissipation components. The heat dissipation components include thermoelectric coolers. The thermoelectric coolers are installed in the corresponding mounting slots with their cooling surface facing the housing and their heating surface facing the top cover. The heating surface of the thermoelectric cooler is connected to a heat sink, and the cooling surface is connected to a cooling block. The cooling block is connected to a fan that blows air into the housing. In this solution, the mounting slots can limit the installation position of the heat dissipation components and rationally plan the spatial positions of the cooling and heating ends of the heat dissipation components to avoid interference between the two ends. At the same time, the heat sink and the cooling block can quickly conduct the heat and cold air generated by the thermoelectric cooler to the corresponding space.
[0008] Preferably, the upper housing is provided with connecting ears on its side, and the lower housing is provided with mating ears that match the connecting ears. The connecting ears and mating ears are connected by bolts. In this solution, the connecting ears are used to connect with the mating ears and serve as the connection between the two housings.
[0009] Preferably, the upper housing has a groove in the middle for engaging with the plug-in box, which improves the stability of the upper housing and the plug-in box.
[0010] Preferably, the upper housing has a downward-facing groove along its contour, and a second sealing plate is installed in the groove. A first sealing plate is also installed between the upper and lower housings and abuts against the second sealing plate. The first and second sealing plates can seal the gap between the lower and upper housings. In this solution, the first and second sealing plates are used to seal the gap between the two housings, which can keep the two housings in a sealed state, protect the battery cells, reduce the loss of cold air, and improve the heat dissipation effect.
[0011] Preferably, multiple heat sinks are provided at the bottom of the lower housing; the heat sinks in this solution can improve the heat dissipation effect of the lower housing.
[0012] Compared with the prior art, the battery heat dissipation cover assembly proposed in this utility model adopts the above-mentioned technical solution and achieves the following technical effects:
[0013] This utility model provides a heat dissipation mechanism above the upper housing. This application can reduce the temperature inside the housing by delivering cold air. This application can further dissipate heat through the heat dissipation mechanism, improve the cooling effect of the refrigeration mechanism, and thus improve the overall heat dissipation effect of the device. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the separation structure of this utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the separation structure of this utility model. Figure 2 ;
[0016] Figure 3 This is a schematic diagram of the upper box structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the heat dissipation component structure of this utility model;
[0018] Figure 5 This is an enlarged schematic diagram of region A of this utility model.
[0019] In the diagram: 1. Lower housing; 3. Upper housing; 2. Battery cell; 4. Heat dissipation assembly; 6. Top cover; 5. Connector box; 51. Air inlet pipe; 501. Ventilation slot; 502. Inlay; 304. Groove; 61. Air outlet; 301. Mounting slot; 41. Semiconductor cooling chip; 43. Heat sink; 42. Cooling block; 44. Fan; 302. Connecting ear; 11. Butt ear; 303. Groove; 8. Second sealing plate; 7. First sealing plate; 12. Heat sink; 305. Strip groove. Detailed Implementation
[0020] Example
[0021] Please refer to Figures 1-5 This utility model proposes a battery heat dissipation cover assembly, including a lower housing 1 and an upper housing 3 that closes the lower housing 1. Multiple battery cells 2 are placed inside the lower housing 1. Multiple heat dissipation components 4 penetrating into the lower housing 1 are installed on the upper housing 3. A top cover 6 encloses all the heat dissipation components 4 and is installed on top of the upper housing 3. A connector box 5 communicating with the interior of the top cover 6 is located below the top cover 6, and the connector box 5 blows air between the top cover 6 and the upper housing 3. In this design, the installation of the upper housing 3 and the lower housing 1 forms a space for placing battery cells. In the space of the upper casing 3 and the lower casing 1, the battery cell 2 is installed. The heat dissipation component 4 delivers cooling energy to the two casings, thereby balancing the temperature between the two casings and keeping the battery at a suitable temperature. The top cover 6 forms a second space with the upper casing 3. This second space is used for the installation of the heat dissipation component 4. At the same time, the top cover 6 can also protect the heat dissipation component 4. In the second space, the connector box 5 can increase the airflow inside the second space, thereby providing heat dissipation for the heat dissipation component 4 and improving the operating performance.
[0022] For specific implementation plans, refer to Figure 1 , Figure 2The plug-in box 5 is located on the lower surface of the middle part of the top cover 6 and protrudes from the lower surface of the top cover 6. The two ends of the plug-in box 5 are connected to the air inlet pipe 51. The two sides of the plug-in box 5 are provided with ventilation slots 501. The two ends of the plug-in box 5 are provided with vertical inserts 502. The upper box 3 is provided with a groove 304 for mating with the inserts 502. In this solution, the air inlet pipe 51 is used to connect to the air-blowing mechanism. The gas will enter the plug-in box 5 through the air inlet pipe 51. The plug-in box 5 will blow air to the heat dissipation components 4 on both sides through the ventilation slots 501, so that the heating surface of the heat dissipation component 4 can accelerate the air circulation, thereby enabling the heat dissipation component 4 to achieve a better cooling effect.
[0023] For specific implementation plans, refer to Figure 1 The top cover 6 has air vents 61 on both sides. In this design, the air vents 61 are used to discharge the gas between the top cover 6 and the upper box 3, which can improve the gas flow. At the same time, a mesh is installed at the air vents 61 to isolate external dust and impurities.
[0024] For specific implementation plans, refer to Figure 1 , Figure 2 , Figure 3 The upper housing 3 is provided with multiple mounting slots 301 for installing corresponding heat dissipation components 4. The heat dissipation components 4 include thermoelectric coolers 41. The thermoelectric coolers 41 are installed in the mounting slots 301 with their cooling surface facing the housing and their heating surface facing the top cover 6. The heating surface of the thermoelectric cooler 41 is connected to a heat sink 43, and the cooling surface is connected to a cooling block 42. The cooling block 42 is connected to a fan 44 that blows air into the housing. In this solution, the cooling surface of the thermoelectric cooler 41 is located inside the upper housing 3 and the lower housing 1, and its heating surface is located inside the top cover 6 and the upper housing 3. During operation, the cold air from its cooling surface is transported to the upper housing 3 and the lower housing 1 by the cooling block 42 and the fan 44, and its heating surface is rapidly cooled by the heat sink 43 to meet the cooling effect of the thermoelectric cooler 41.
[0025] For specific implementation plans, refer to Figure 1 , Figure 2 The upper housing 3 is provided with a connecting ear 302 on its side, and the lower housing 1 is provided with a mating ear 11 that matches the connecting ear 302. The connecting ear 302 and the mating ear 11 are connected by bolts. In this solution, the upper housing 3 and the lower housing 1 are connected by the connecting ear 302 and the mating ear 11 to realize the connection between the upper housing 3 and the lower housing 1, thereby improving the sealing performance of the housing.
[0026] For specific implementation plans, refer to Figure 2 , Figure 5 The upper housing 3 has a strip groove 305 in the middle for engaging with the plug-in box 5. The strip groove 305 can engage with the plug-in box 5, improving the stability of the upper housing 3 and the plug-in box 5.
[0027] For specific implementation plans, refer to Figure 2 , Figure 5 The upper housing 3 has a downward-facing groove 303 along its contour, and a second sealing sheet 8 is installed in the groove 303. A first sealing sheet 7 is also installed between the upper housing 3 and the lower housing 1, and it abuts against the second sealing sheet 8. The first sealing sheet 7 and the second sealing sheet 8 can seal the gap between the lower housing 1 and the upper housing 3. In this solution, the first sealing sheet 7 and the second sealing sheet 8 are made of rubber, which can undergo a certain deformation. After the upper housing 3 and the lower housing 1 are installed, the two will deform and fit the contour of the upper housing 3 and the lower housing 1, sealing the upper housing 3 and the lower housing 1 and improving the sealing effect.
[0028] For specific implementation plans, refer to Figure 2 Multiple heat sinks 12 are provided on the lower part of the lower housing 1; the heat sinks 12 in this solution can help the lower housing 1 to accelerate heat dissipation efficiency.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A battery heat dissipation cover assembly, characterized in that, It includes a lower housing (1) and an upper housing (3) that encloses the lower housing (1). Multiple battery cells (2) are placed inside the lower housing (1). Multiple heat dissipation components (4) that penetrate into the lower housing (1) are installed on the upper housing (3). A top cover (6) that encloses all the heat dissipation components (4) is installed on the top of the upper housing (3). A blower mechanism is provided between the top cover (6) and the upper housing (3).
2. The battery heat dissipation cover assembly according to claim 1, characterized in that, The blower mechanism includes a connector box (5) and an air inlet pipe (51). The connector box (5) is located on the lower surface of the middle part of the top cover (6) and protrudes from the lower surface of the top cover (6). The air inlet pipe (51) is connected to the end of the connector box (5). Ventilation slots (501) are provided on both sides of the connector box (5). Vertical inserts (502) are provided at both ends of the connector box (5). The upper box (3) is provided with a groove (304) for mating the inserts (502).
3. The battery heat dissipation cover assembly according to claim 1, characterized in that, Air vents (61) are provided on both sides of the top cover (6).
4. The battery heat dissipation cover assembly according to claim 1, characterized in that, The upper housing (3) is provided with multiple mounting slots (301) for installing heat dissipation components (4). The heat dissipation components (4) include a thermoelectric cooler (41). The thermoelectric cooler (41) is installed in the mounting slot (301) with its cooling surface facing the housing (1) and its heating surface facing the top cover (6). The heating surface of the thermoelectric cooler (41) is connected to a heat sink (43), and the cooling surface is connected to a cooling block (42). The cooling block (42) is connected to a fan (44) that blows air into the housing (1).
5. The battery heat dissipation cover assembly according to claim 1, characterized in that, The upper housing (3) is provided with connecting ears (302) on its side, and the lower housing (1) is provided with mating ears (11) that match the connecting ears (302). The connecting ears (302) and the mating ears (11) are connected by bolts.
6. The battery heat dissipation cover assembly according to claim 1, characterized in that, The upper housing (3) has a strip groove (305) in the middle for the matching plug box (5) to snap into.
7. The battery heat dissipation cover assembly according to claim 1, characterized in that, The upper box (3) has a downward-facing groove (303) along its contour. A second sealing plate (8) is installed in the groove (303). A first sealing plate (7) is also installed between the upper box (3) and the lower box (1) and abuts against the second sealing plate (8). The first sealing plate (7) and the second sealing plate (8) can seal the gap between the lower box (1) and the upper box (3).
8. The battery heat dissipation cover assembly according to claim 1, characterized in that, Multiple heat sinks (12) are provided on the lower part of the lower casing (1).