A heat dissipation structure of a battery pack
By improving the heat dissipation structure of the battery pack, increasing the heat dissipation area and air circulation, the problems of poor heat dissipation at the bottom of the battery pack and difficulty in disassembly were solved, achieving efficient heat dissipation and convenient maintenance, and extending the service life of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGLING MOTORS
- Filing Date
- 2025-03-26
- Publication Date
- 2026-05-29
AI Technical Summary
The existing battery pack's heat dissipation structure is not perfect, especially the bottom heat dissipation effect is poor, which leads to a shortened battery pack life. In addition, traditional heat sinks affect disassembly efficiency and maintenance results.
A battery pack heat dissipation structure was designed, including components such as a housing, heat dissipation holes, T-slots, T-plates, heat sinks, limiting pins, heat-conducting sheets, vents, and cooling fans. By increasing the heat dissipation area, improving air circulation, and implementing dustproof design, efficient heat dissipation is achieved and disassembly is facilitated.
It improves the heat dissipation of the battery pack, extends its service life, prevents the battery box from deforming, simplifies the maintenance process, and reduces the impact of dust entering.
Smart Images

Figure CN224304730U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation technology, and in particular to a heat dissipation structure for a battery pack. Background Technology
[0002] A battery pack is a power storage unit composed of multiple individual cells connected in series, parallel, or mixed configurations. It is used to provide higher voltage, greater capacity, or stronger output power. During the charging and discharging process, battery cells generate a lot of heat. If the heat cannot be effectively dissipated, the temperature of the battery pack will rise rapidly, causing changes in the electrical characteristics of the battery and thus affecting the performance of the battery pack.
[0003] However, in the existing technology, the heat dissipation structure of most battery packs is not perfect. The battery pack is fixedly installed inside the battery box, and the heat dissipation effect at the bottom of the battery pack is poor. Over time, this can easily reduce the lifespan of the battery pack and even deform the battery box, affecting the protection of the battery pack. Moreover, traditional heat sinks are usually directly installed on the battery pack. When the battery pack needs to be inspected and disassembled, the heat sink affects the disassembly efficiency and the inspection effect of the battery pack. Utility Model Content
[0004] The purpose of this invention is to solve the problems of insufficient heat dissipation structure in most existing battery packs. The battery pack is fixedly installed inside the battery box, and the heat dissipation effect at the bottom of the battery pack is poor. Over time, this can easily reduce the service life of the battery pack and even deform the battery box, affecting the protection of the battery pack. Moreover, traditional heat sinks are usually directly installed on the battery pack. When the battery pack needs to be disassembled for maintenance, the heat sink affects the disassembly efficiency and the maintenance effect of the battery pack.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a heat dissipation structure for a battery pack, characterized in that the heat dissipation structure includes: a housing, the bottom of which has multiple heat dissipation holes, a battery pack body disposed inside the housing, and T-shaped grooves formed at the center of both sides of the housing's interior, wherein the T-grooves also contain:
[0006] Two T-shaped plates are movably embedded inside the two T-shaped slots, and rectangular plates are fixedly installed on the opposite sides of the two T-shaped plates;
[0007] Multiple heat sinks are fixedly installed on the opposite sides of the two rectangular plates;
[0008] Two limiting pins are movably embedded in the upper ends of the opposite surfaces of the two T-shaped plates. Springs are fixedly connected to the outer surfaces of the two limiting pins, and the other ends of the two springs are fixedly connected to the outer surfaces of the T-shaped plates.
[0009] Preferably, a limiting hole is provided at the upper end of the opposite surfaces of the two T-shaped grooves.
[0010] The technical effect of adopting the above-mentioned further solution is that the two limiting pins are embedded in the limiting hole under the elastic force of the spring, thereby limiting and fixing the T-shaped plate, making it more stably embedded in the T-shaped groove.
[0011] Preferably, heat-conducting plates are fixedly installed at the four corners inside the housing, and the plurality of heat-conducting plates are in contact with the heat sink.
[0012] The technical effect of adopting the above-mentioned further solution is that multiple heat-conducting plates are in contact with the heat sink, and the heat dissipation effect is better improved under the action of the heat sink.
[0013] Preferably, ventilation openings are provided at the center of both sides of the housing, and dustproof mesh plates are fixedly embedded inside the two ventilation openings.
[0014] The technical effect of adopting the above-mentioned further solution is that the dustproof mesh can prevent external dust from entering the interior of the casing and affecting the use of the battery pack itself.
[0015] Preferably, an air guide tube is fixedly embedded inside one of the ventilation openings, and the outer surface of the air guide tube has multiple through holes.
[0016] The technical advantage of adopting the above-mentioned further solution is that the air duct facilitates the installation of the cooling fan.
[0017] Preferably, a cooling fan is installed inside the air duct.
[0018] The technical effect of adopting the above-mentioned further solution is that the cooling fan improves the air circulation inside the casing through the ventilation holes, blows out the heat inside the casing, and cools down the battery pack body.
[0019] Preferably, fixing plates are fixedly installed on both sides of the bottom of the housing.
[0020] The technical effect of adopting the above-mentioned further solution is that the fixing plate can suspend the bottom of the casing, allowing better air circulation and heat dissipation and cooling of the battery pack inside the casing.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] 1. In this utility model, the battery pack body is fixedly installed inside the housing. The bottom of the housing has multiple heat dissipation holes, which can improve the heat dissipation effect on the bottom of the battery pack body. Fixing plates are fixedly installed on both sides of the bottom of the housing. The fixing plates can suspend the bottom of the housing, allowing better air circulation and heat dissipation and cooling of the battery pack body inside the housing. Two sets of heat sinks are embedded inside the housing through two T-shaped plates, so that the heat sinks are in contact with the battery pack body. The heat sinks increase the surface area of the battery pack body in contact with the air, improve the heat exchange efficiency, and thus effectively dissipate heat. Under the elastic force of the spring, two limiting pins are embedded inside the limiting holes, thereby limiting and fixing the T-shaped plates, making them more stably embedded inside the T-shaped groove.
[0023] 2. In this utility model, multiple heat-conducting fins are in contact with the heat sink, which improves the heat dissipation effect. The cooling fan is turned on to cool the battery pack inside the casing. The cooling fan improves the air circulation inside the casing through the ventilation opening, blowing out the heat inside the casing and cooling the battery pack. A dustproof mesh plate is fixedly embedded inside the ventilation opening to prevent external dust from entering the casing and affecting the use of the battery pack. Attached Figure Description
[0024] Figure 1 This utility model provides a schematic diagram of a heat dissipation structure for a battery pack.
[0025] Figure 2 This utility model provides a partial side view of the heat dissipation structure of a battery pack.
[0026] Figure 3 An exploded view of the heat dissipation structure of a battery pack is provided for this utility model.
[0027] Figure 4 This is a cross-sectional view of a heat dissipation structure for a battery pack, as proposed in this utility model.
[0028] Legend:
[0029] 1. Housing; 101. Fixing plate; 102. Ventilation opening; 103. Dustproof mesh plate; 104. Battery pack body; 105. Heat-conducting plate; 106. Limiting pin; 107. Spring; 108. T-shaped plate; 109. Heat dissipation hole; 110. Heat sink; 111. Rectangular plate; 112. Limiting hole; 113. T-slot; 114. Air duct; 115. Through hole; 116. Cooling fan. Detailed Implementation
[0030] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0032] Example 1, such as Figure 1-4 As shown, this utility model provides a heat dissipation structure for a battery pack, including: a housing 1, with multiple heat dissipation holes 109 at the bottom of the housing 1, a battery pack body 104 disposed inside the housing 1, and T-shaped grooves 113 at the center of both sides of the housing 1; further including: two T-shaped plates 108, both movably embedded inside the two T-shaped grooves 113, with rectangular plates 111 fixedly installed on the opposite surfaces of the two T-shaped plates 108; multiple heat dissipation fins 110, both fixedly installed on the opposite surfaces of the two rectangular plates 111; two limiting pins 106, both movably embedded at the upper ends of the opposite surfaces of the two T-shaped plates 108, with springs 107 fixedly connected to the outer surfaces of the two limiting pins 106, and the other ends of the two springs 107 fixedly connected to the outer surfaces of the T-shaped plates 108; limiting holes 112 are provided at the upper ends of the opposite surfaces of the two T-shaped grooves 113; and fixing plates 101 are fixedly installed on both sides of the bottom of the housing 1.
[0033] In this embodiment, the battery pack body 104 is fixedly installed inside the housing 1. The bottom of the housing 1 has multiple heat dissipation holes 109, which can improve the heat dissipation effect on the bottom of the battery pack body 104. Fixing plates 101 are fixedly installed on both sides of the bottom of the housing 1. The fixing plates 101 can suspend the bottom of the housing 1, allowing better air circulation and heat dissipation and cooling of the battery pack body 104 inside the housing 1. Two sets of heat sinks 110 are embedded inside the housing 1 through two T-shaped plates 108, so that the heat sinks 110 are in contact with the battery pack body 104. The heat sinks 110 increase the surface area of the battery pack body 104 in contact with the air, improving the heat exchange efficiency and effectively dissipating heat. Under the elastic force of the spring 107, the two limiting pins 106 are embedded inside the limiting holes 112, thereby limiting and fixing the T-shaped plates 108, making them more stably embedded inside the T-shaped grooves 113.
[0034] Example 2, as Figure 1-4As shown, heat-conducting plates 105 are fixedly installed at the four corners of the interior of the housing 1, and multiple heat-conducting plates 105 are in contact with the heat sink 110; ventilation openings 102 are provided at the center of both sides of the housing 1, and dustproof mesh plates 103 are fixedly embedded inside the two ventilation openings 102; an air guide tube 114 is fixedly embedded inside one of the ventilation openings 102, and multiple through holes 115 are provided on the outer surface of the air guide tube 114; a cooling fan 116 is provided inside the air guide tube 114.
[0035] In this embodiment, multiple heat-conducting plates 105 are in contact with the heat sink 110, which improves the heat dissipation effect. The cooling fan 116 is turned on to cool the battery pack body 104 inside the housing 1. The cooling fan 116 improves the air circulation inside the housing 1 through the ventilation port 102, blowing out the heat inside the housing 1 and cooling the battery pack body 104. A dustproof mesh plate 103 is fixedly embedded inside the ventilation port 102, which can prevent external dust from entering the interior of the housing 1 and affecting the use of the battery pack body 104.
[0036] Working principle: In use, the battery pack body 104 is fixedly installed inside the housing 1. Multiple heat dissipation holes 109 are provided at the bottom of the housing 1, which improve the heat dissipation effect on the bottom of the battery pack body 104. Fixing plates 101 are fixedly installed on both sides of the bottom of the housing 1, allowing the bottom of the housing 1 to be suspended, thus improving airflow and cooling the battery pack body 104 inside the housing 1. Two sets of heat sinks 110 are embedded inside the housing 1 through two T-shaped plates 108, making the heat sinks 110 contact with the battery pack body 104. The heat sinks 110 increase the surface area of the battery pack body 104 in contact with the air, improving heat exchange efficiency and effectively dissipating heat. Two limiting pins... Under the elastic force of spring 107, 106 is embedded in the limiting hole 112, thereby limiting and fixing the T-shaped plate 108, making it more stably embedded in the T-shaped groove 113. Multiple heat-conducting fins 105 are in contact with heat sink 110, and the heat dissipation effect is better improved under the action of heat sink 110. The cooling fan 116 is turned on to cool down the battery pack body 104 inside the housing 1. The cooling fan 116 improves the air circulation inside the housing 1 through the ventilation port 102, blows out the heat inside the housing 1, and cools down the battery pack body 104. A dustproof mesh plate 103 is fixedly embedded inside the ventilation port 102, which can prevent external dust from entering the interior of the housing 1 and affecting the use of the battery pack body 104.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A heat dissipation structure for a battery pack, characterized in that, The heat dissipation structure of the battery pack includes: a housing, the bottom of which has multiple heat dissipation holes, the battery pack body is disposed inside the housing, and T-shaped grooves are formed at the center of both sides of the housing, with the following features also provided within the T-grooves: Two T-shaped plates are movably embedded inside the two T-shaped grooves (113), and rectangular plates are fixedly installed on the opposite sides of the two T-shaped plates; Multiple heat sinks are fixedly installed on the opposite sides of the two rectangular plates; Two limiting pins are movably embedded in the upper ends of the opposite surfaces of the two T-shaped plates. Springs are fixedly connected to the outer surfaces of the two limiting pins, and the other ends of the two springs are fixedly connected to the outer surfaces of the T-shaped plates.
2. The heat dissipation structure of a battery pack according to claim 1, characterized in that: Limiting holes are provided at the upper ends of the opposite surfaces of the two T-slots.
3. The heat dissipation structure of a battery pack according to claim 1, characterized in that: Heat-conducting plates are fixedly installed at the four corners inside the housing, and multiple heat-conducting plates are in contact with the heat sink.
4. The heat dissipation structure of a battery pack according to claim 1, characterized in that: Ventilation openings are provided at the center of both sides of the housing, and dustproof mesh plates are fixedly embedded inside the two ventilation openings.
5. The heat dissipation structure of a battery pack according to claim 4, characterized in that: One of the ventilation openings has an air guide tube fixedly embedded inside, and the outer surface of the air guide tube has multiple through holes.
6. The heat dissipation structure of a battery pack according to claim 5, characterized in that: The air duct is equipped with a cooling fan inside.
7. The heat dissipation structure of a battery pack according to claim 1, characterized in that: Fixing plates are fixedly installed on both sides of the bottom of the housing.