A heat dissipation architecture for an external discharge gun

CN224844519UActive Publication Date: 2026-10-09SHI WEIBAO (ZHEJIANG) TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522360695.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-06
Publication Date
2026-10-09
Estimated Expiration
2035-11-06

AI Technical Summary

Technical Problem

[0004]为了弥补以上不足,本实用新型提供了一种对外放电枪的散热架构,旨在改善了现有技术中“通过自然散热的方式,散热效率低”的问题

Benefits of technology

[0021]1、本实用新型中,通过导热块快速将热量向外导出,通过导热垫片传递至散热片,同时枪柄的热量通过弧形铜材质导向片二直接汇聚至散热片,实现了枪体与枪柄热量的集中散发,同时散热片的倾斜设置与导向片一形成的百叶窗式结构,能引导气流斜向流进散热片及导向片二内侧,充分接触高温区域将内部热量循环排出,进而提高了散热效率,保障了对外放电枪的性能,提高了安全性。

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Abstract

The utility model relates to the field of external discharge gun heat dissipation, disclose a kind of heat dissipation framework of external discharge gun, including gun body and with the gun handle of gun body form external discharge gun, the bottom periphery of the gun handle is provided with heat dissipation component, the heat dissipation component includes fin, the right side of the fin is provided with through slot, the inner wall of the through slot is fixedly connected with guide vane one and is equipped with multiple groups, the bottom of the fin is fixedly connected with guide vane two, the fin and guide vane two are equipped with two groups, two groups of guide vane two are symmetrically arranged with the center line of gun handle as symmetry axis. In the utility model, heat is transferred to fin by heat-conducting block, heat-conducting gasket and guide vane two, the heat concentration of gun body and gun handle is realized, at the same time, guide vane one can guide airflow to flow into the inner side of fin and guide vane two obliquely, the internal heat of high-temperature area is fully contacted and circulated and discharged, and then the heat dissipation efficiency is improved, the performance of external discharge gun is guaranteed, and the safety is improved.
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Description

Technical Field

[0001] This utility model relates to the field of heat dissipation for external discharge guns, and more particularly to a heat dissipation structure for an external discharge gun. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage equipment and portable power systems, external discharge guns, as key components for realizing bidirectional power transmission, are widely used in outdoor power supply, emergency power supply, equipment debugging and other scenarios. The core function of external discharge guns is to safely and stably transmit high-voltage power from the power source (such as power batteries of new energy vehicles and energy storage battery packs) to the load end (such as power tools, temporary lighting equipment, etc.). During its operation, a large amount of heat will inevitably be generated due to resistance loss when current passes through conductive components (such as copper busbars, electrodes, wires, etc.).

[0003] Currently, existing external discharge guns typically rely on natural convection for heat dissipation, depending solely on the heat exchange between the gun surface and the surrounding air. This method is inefficient and cannot quickly dissipate heat. Over time, excessively high temperatures can lead to performance degradation and safety risks. Therefore, a heat dissipation architecture for external discharge guns is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a heat dissipation architecture for an external discharge gun, aiming to improve the problem of "low heat dissipation efficiency through natural heat dissipation" in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat dissipation structure for an external discharge gun, comprising a gun body and a gun handle forming an external discharge gun with the gun body. A heat dissipation component is provided on the bottom periphery of the gun handle. The heat dissipation component includes a heat sink. A through groove is opened on the right side of the heat sink. A guide plate 1 is fixedly connected to the inner wall of the through groove, and multiple sets are provided. A guide plate 2 is fixedly connected to the bottom of the heat sink. The heat sink and the guide plate 2 are provided in two sets. The two sets of guide plates 2 are symmetrically arranged with the center line of the gun handle as the axis of symmetry, and are provided on the lower periphery of the gun handle to wrap around the lower part of the gun handle. Two sets of heat-conducting blocks are fixedly connected to both the left and right sides of the gun body. All four sets of heat-conducting blocks are connected to the heat sink through slots.

[0006] As a further description of the above technical solution:

[0007] The heat sink is designed to be inclined and parallel to the gun handle.

[0008] As a further description of the above technical solution:

[0009] The multiple sets of guide plates are evenly distributed and all are inclined.

[0010] As a further description of the above technical solution:

[0011] The second guide piece is configured in an arc shape.

[0012] As a further description of the above technical solution:

[0013] The heat sink is fixedly installed on the outer wall of the gun body and the gun handle by an installation assembly. The installation assembly includes a plug rod and an installation frame. There are two sets of plug rods, which are fixedly connected to the left and right sides of the gun body near the two sets of heat-conducting blocks. There are two sets of installation frames, which are snapped into the outer wall of the gun body. The inner wall of each of the two sets of installation frames has an insertion hole in the middle. Four sets of slots are respectively opened in the inner wall of the two sets of installation frames near the middle. The heat-conducting block is inserted into the inner wall of the slot. The plug rod is inserted into the inner wall of the insertion hole. A sliding groove is opened in the upper part of the right installation frame. A locking block is fixedly connected to the inner wall of the sliding groove. A slot is opened in the lower left part of the right installation frame. An insertion block is fixedly connected in the lower right part of the left installation frame.

[0014] As a further description of the above technical solution:

[0015] The insert block is inserted into the inner wall of the slot, and an elastic piece is fixedly connected to the upper part of the mounting frame on the left side. The top of the elastic piece has a slot, and the insert block is engaged with the inner wall of the slot.

[0016] As a further description of the above technical solution:

[0017] The top left side of the card block is designed as a slope.

[0018] As a further description of the above technical solution:

[0019] Both sets of mounting frames have an arc-shaped inner wall that contacts the outer wall of the gun body.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, heat is quickly dissipated to the outside through the heat-conducting block and transferred to the heat sink through the heat-conducting pad. At the same time, the heat from the gun handle is directly concentrated to the heat sink through the arc-shaped copper guide plate 2, realizing the concentrated dissipation of heat from the gun body and the gun handle. Meanwhile, the inclined setting of the heat sink and the louver-like structure formed by the guide plate 1 can guide the airflow obliquely into the heat sink and the inner side of the guide plate 2, fully contacting the high-temperature area to circulate and discharge the internal heat, thereby improving the heat dissipation efficiency, ensuring the performance of the external discharge gun, and improving safety.

[0022] 2. In this utility model, the initial positioning is achieved by inserting the rod into the socket, the lower part is stably connected by the interference fit between the plug and the slot, and the upper elastic piece and the inclined guide and buckle of the card block achieve quick locking. No tools are required, and the fixing can be completed by manual pressing. The installation is convenient and quick, and the convenience of later maintenance is guaranteed. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a bottom view of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 3 This is a three-dimensional structural breakdown diagram of the guide plate 2, mounting frame, gun body and gun handle in this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of guide plate two and guide plate one in this utility model.

[0027] Legend:

[0028] 1. Gun body; 2. Mounting assembly; 3. Heat dissipation assembly; 4. Gun handle; 21. Mounting frame; 22. Insert block; 23. Slot; 24. Elastic plate; 25. Locking block; 26. Slide groove; 27. Insertion hole; 28. Insertion rod; 29. ​​Slot; 31. Heat sink; 32. Heat conduction block; 33. Empty slot; 34. Guide plate one; 35. Guide plate two. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a heat dissipation structure for an external discharge gun, including a gun body 1 and a gun handle 4 that forms an external discharge gun with the gun body 1. The external discharge gun is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. A heat dissipation component 3 is provided on the bottom periphery of the gun handle 4 to dissipate heat at the gun handle 4. The heat dissipation component 3 includes heat sinks 31 made of copper. Two sets of heat sinks 31 are symmetrically distributed to form an airflow channel. A through groove is provided on the right side of the heat sink 31. A guide plate 34 is fixedly connected to the inner wall of the through groove, and multiple sets are provided. The guide plate 34 is made of aluminum alloy and has an inclination angle of 45°. There is a gap between adjacent guide plates 34 to form a "louver" structure, which guides the airflow obliquely along the through groove into the two sets of guide plates 35, thereby improving the heat exchange efficiency with the heat sink 31.

[0031] Furthermore, a second guide plate 35 is fixedly connected to the bottom of the heat sink 31. The second guide plate 35 is made of copper. Two sets of guide plates are fixed to the bottom of the heat sink 31, with the inner side close to the outer wall of the gun handle 4, forming a ring structure to absorb the heat of the gun handle 4. The heat sink 31 and the second guide plate 35 are set in two sets. The two sets of second guide plates 35 are symmetrically arranged with the center line of the gun handle 4 as the axis of symmetry, and are set on the lower periphery of the gun handle 4 to wrap the lower part of the gun handle 4. Two sets of heat-conducting blocks 32 are fixedly connected to the left and right sides of the gun body 1. The heat-conducting blocks 32 are made of copper and are tightly attached to the inner wall of the slot 33 to transfer heat to the mounting frame 21 and the heat sink 31. A heat-conducting pad is installed inside the mounting frame 21 to connect the heat sink 31. All four sets of heat-conducting blocks 32 are connected to the heat sink 31 through the slot 33. The heat sink 31 is set in an inclined shape and parallel to the gun handle 4. Multiple sets of first guide plates 34 are evenly distributed and are all in an inclined shape. The second guide plate 35 is set in an arc shape.

[0032] Reference Figure 1 , Figure 2 and Figure 3The heat sink 31 is fixedly installed on the outer wall of the gun body 1 and the gun handle 4 by the mounting assembly 2. The mounting assembly 2 includes a plug rod 28 and a mounting frame 21. The mounting frame 21 provides support and quick installation. There are two sets of plug rods 28, which are fixedly connected to the left and right sides of the gun body 1 near the two sets of heat conduction blocks 32. The plug rods 28 are used to position the two sets of mounting frames 21. There are two sets of mounting frames 21, which are snapped onto the outer wall of the gun body 1. The inner wall of each set of mounting frames 21 has a hole 27 in the middle. Four slots 33 are respectively opened on the inner wall of the two sets of mounting frames 21 near the middle. The heat conduction blocks 32 are inserted into the inner wall of the slots 33, and the plug rods 28 are inserted into the inner wall of the holes 27. A sliding groove 26 is opened on the upper part of the right mounting frame 21. A locking block 25 is fixedly connected to the inner wall of the sliding groove 26. The elastic piece 24 contacts the locking block 25. After the inclined surface of 5 deforms upward, the two sets of mounting frames 21 are installed. The elastic force of the elastic piece 24 can make it return to its original position and fit against the inner wall of the slide groove 26. At the same time, the locking block 25 is aligned with the slot 23 and inserted. Simultaneously, the bottom insert block 22 is inserted into the slot 29, which can quickly install the two sets of mounting frames 21. The slot 29 is opened on the lower left side of the right mounting frame 21. The insert block 22 is fixedly connected to the lower right side of the left mounting frame 21. The insert block 22 is interference-fitted with the slot 29 and is inserted into the inner wall of the slot 29. The elastic piece 24 is fixedly connected to the upper part of the left mounting frame 21. The top of the elastic piece 24 is opened with a slot 23. The locking block 25 is locked into the inner wall of the slot 23. The top left side of the locking block 25 is set as an inclined surface. The inner walls of the two sets of mounting frames 21 are arc-shaped and contact the outer wall of the gun body 1.

[0033] Working Principle: During use, when the discharge gun is operating, the conductive copper busbar inside the gun body 1 generates Joule heat due to the current flowing through it. This heat is rapidly dissipated through four sets of copper heat-conducting blocks 32. Since the heat-conducting blocks 32 are inserted into the slots 33 on the inner wall of the mounting frame 21, and the heat-conducting pads within the slots 33 ensure a tight fit, the heat is efficiently transferred to the mounting frame 21. From there, it is conducted to the two sets of symmetrically distributed copper heat sinks 31 connected to it. Simultaneously, the heat generated by the gun handle 4 during operation is transferred through its outer wall to two sets of arc-shaped copper guide plates 35. Because the guide plates 35 are fixed to the bottom of the heat sinks 31 and form a ring structure enveloping the lower part of the gun handle 4, the heat... The heat is further transferred to the heat sink 31, so that the heat from the gun body 1 and the gun handle 4 is concentrated and gathered on the heat sink 31. During heat dissipation, since the heat sink 31 is set at an angle parallel to the gun handle 4, and an airflow channel is formed between the two sets of heat sinks 31, the "louver" structure formed by multiple sets of aluminum alloy guide plates 34 at an angle of 45° in the through groove on the right side of the heat sink 31 guides the external airflow to flow obliquely into the through groove and pass through the channel between the two sets of heat sinks 31. At the same time, it flows to the inside of the two sets of guide plates 35. Through the full contact between the airflow and the heat sink 31, guide plate 34 and guide plate 35, the heat between the guide plate 35 and the gun handle 4 is quickly carried away, enhancing the heat exchange efficiency.

[0034] Initial positioning is achieved by inserting the rods 28 on both sides of the gun body 1 into the insertion holes 27 through two sets of mounting frames 21. The elastic plate 24 of the left mounting frame 21 is elastically deformed by the inclined surface of the locking block 25 in the sliding groove 26 of the right mounting frame 21. When the locking block 25 slides to the position of the slot 23, it elastically resets and locks the locking block 25 into the slot 23. The bottom insertion block 22 and the slot 29 are interference-fitted to form a secondary fixation, ensuring that each component of the heat dissipation assembly 3 is in close contact with the gun body 1 and the gun handle 4. This forms a heat source from the gun body 1 and the gun handle 4 to the heat sink 31, achieving quick installation and disassembly, and facilitating storage or installation and disassembly for convenient use.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for an external discharge gun, comprising a gun body (1) and a gun handle (4) forming an external discharge gun with the gun body (1), characterized in that: A heat dissipation component (3) is provided on the bottom periphery of the gun handle (4); The heat dissipation assembly (3) includes a heat sink (31). A through groove is provided on the right side of the heat sink (31). A guide plate (34) is fixedly connected to the inner wall of the through groove and multiple sets are provided. A guide plate (35) is fixedly connected to the bottom of the heat sink (31). The heat sink (31) and the guide plate (35) are set as two sets. The two sets of guide plates (35) are symmetrically arranged with the center line of the gun handle (4) as the axis of symmetry, and are set on the lower periphery of the gun handle (4) to wrap the lower part of the gun handle (4). Two sets of heat-conducting blocks (32) are fixedly connected to the left and right sides of the gun body (1). All four sets of heat-conducting blocks (32) are connected to the heat sink (31) through the slot (33).

2. The heat dissipation architecture for an external discharge gun according to claim 1, characterized in that: The heat sink (31) is set at an angle and parallel to the gun handle (4).

3. The heat dissipation architecture for an external discharge gun according to claim 1, characterized in that: The multiple sets of guide plates (34) are evenly distributed and all are inclined.

4. The heat dissipation architecture for an external discharge gun according to claim 1, characterized in that: The guide plate 2 (35) is configured in an arc shape.

5. The heat dissipation architecture for an external discharge gun according to claim 1, characterized in that: The heat sink (31) is fixedly installed on the outer wall of the gun body (1) and the gun handle (4) by the mounting assembly (2). The mounting assembly (2) includes a plug rod (28) and a mounting frame (21). There are two sets of plug rods (28), which are fixedly connected to the left and right sides of the gun body (1) near the two sets of heat conduction blocks (32). There are two sets of mounting frames (21). The two sets of mounting frames (21) are snapped onto the outer wall of the gun body (1). The inner wall of the two sets of mounting frames (21) is provided with a plug hole (27). The four sets of slots (33) The heat-conducting block (32) is inserted into the inner wall of the empty slot (33) and the insertion rod (28) is inserted into the inner wall of the insertion hole (27). A sliding groove (26) is opened on the upper part of the right mounting frame (21). A locking block (25) is fixedly connected to the inner wall of the sliding groove (26). A slot (29) is opened on the lower left side of the right mounting frame (21). An insertion block (22) is fixedly connected to the lower right side of the left mounting frame (21).

6. The heat dissipation architecture for an external discharge gun according to claim 5, characterized in that: The insert (22) is inserted into the inner wall of the slot (29). An elastic piece (24) is fixedly connected to the upper part of the mounting frame (21) on the left side. A slot (23) is opened at the top of the elastic piece (24), and the insert (25) is engaged with the inner wall of the slot (23).

7. The heat dissipation architecture for an external discharge gun according to claim 5, characterized in that: The top left side of the card block (25) is set as a slope.

8. The heat dissipation architecture for an external discharge gun according to claim 5, characterized in that: The inner walls of both sets of mounting frames (21) are arc-shaped and contact the outer wall of the gun body (1).