A new energy vehicle charging gun with strong heat dissipation

Abstract

The utility model relates to new energy vehicle charging gun technical field, and disclose a new energy vehicle is with strong heat dissipation type charging gun, including charging interface body and charging gun body, the outside of charging gun body is provided with two heat dissipation covers, the recess is opened to the side surface of heat dissipation cover and charging gun body is faced, the inside of heat dissipation cover is opened and has the flow through chamber, the surface of recess is embedded and is equipped with the heat absorption copper sheet, the heat absorption copper sheet extends into the inside of flow through chamber, through the cooperation between heat dissipation fan, second through slot, recess, flow through chamber, heat absorption copper sheet, round groove etc. Structure, effectively promoted the heat dissipation efficiency of charging gun, and with the help of heat absorption copper sheet directly contacts charging gun surface, can conduct heat to flow through chamber, then with the help of heat dissipation fan initiative guide airflow, combine the natural wind convection, realize the efficient cooling of charging gun body, effectively avoid the electronic component damage, insulation material ageing and the problem such as the increase of contact resistance caused by high temperature.

Description

Technical Field

[0001] This utility model relates to the field of charging gun technology for new energy vehicles, specifically a high-heat-dissipation charging gun for new energy vehicles. Background Technology

[0002] With domestic and international policy support and purchase subsidies for new energy vehicles, the promotion and popularization of new energy vehicles has become an inevitable trend, and related supporting equipment such as charging guns are receiving increasing attention from manufacturers.

[0003] Currently, new energy vehicles are primarily charged using charging guns and charging stations. However, existing charging guns are characterized by long charging times and high currents, and are often left unattended. In unattended situations, the charging gun continuously heats up, and prolonged or repeated thermal shocks can severely damage the precision electronic components inside the gun, such as temperature sensors and insulating materials. High temperatures accelerate the aging and embrittlement of insulating materials, reducing their dielectric strength and increasing the risk of short circuits. They can also cause oxidation of metal terminals, increasing contact resistance and significantly affecting charging efficiency and safety. Especially in hot weather, the charging gun connectors can easily become excessively hot and unable to dissipate heat in time, posing a significant safety hazard. Therefore, we propose a high-heat-dissipation charging gun for new energy vehicles to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-heat-dissipation charging gun for new energy vehicles, thereby solving the problem of poor heat dissipation in some existing charging guns for new energy vehicles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-heat-dissipation charging gun for new energy vehicles, comprising a charging interface body and a charging gun body. The charging gun body has two heat dissipation covers on its exterior. A groove is formed on the surface of one of the heat dissipation covers facing the charging gun body. A flow chamber is formed inside the heat dissipation cover. A heat-absorbing copper sheet is embedded in the surface of the groove, extending into the flow chamber. One end of the heat-absorbing copper sheet inside the groove contacts the surface of the charging gun body. A cooling fan is fixedly connected to the surface of the upper heat dissipation cover. A first through groove is formed on the surface of the upper heat dissipation cover, and the flow chamber is connected to the cooling fan through the first through groove. A fixing component is provided on the exterior of the heat dissipation cover.

[0006] Preferably, the surface of the heat sink is provided with a second through groove, the outside of the heat sink is slidably fitted with an arc-shaped baffle, the surface of the arc-shaped baffle is provided with a third through groove, the third through groove is connected to the second through groove, and a reset component is provided on the outside of the arc-shaped baffle.

[0007] Preferably, the inner wall of the groove is provided with a circular groove, which is connected to the interior of the flow chamber.

[0008] Preferably, an extension plate is fixedly connected to one end of the arc-shaped baffle facing the charging interface body, and a clearance groove is provided inside the upper arc-shaped baffle, with the cooling fan located inside the clearance groove.

[0009] Preferably, the fixing assembly includes four fixing plates, which are respectively fixedly connected to both sides of the two heat sinks. Each of the four fixing plates has an assembly groove on its surface, and a locking bolt is provided inside the assembly groove.

[0010] Preferably, the reset assembly includes two second connecting plates, both of which are fixedly connected to the surface of the arc-shaped baffle, and a sliding rod is fixedly connected to the surface of the second connecting plates.

[0011] Preferably, a first connecting plate is fixedly connected to the surface of the fixed plate, and a fixed rod is fixedly connected to the surface of the first connecting plate, with the sliding rod slidingly penetrating into the interior of the fixed rod.

[0012] Preferably, a return spring is fixedly connected between the cavity inside the sliding rod and the fixed rod.

[0013] Compared with the prior art, this utility model provides a high-heat-dissipation charging gun for new energy vehicles, which has the following beneficial effects: 1. This high-heat-dissipation charging gun for new energy vehicles effectively improves the heat dissipation efficiency of the charging gun through the cooperation of structures such as cooling fan, second channel, groove, flow chamber, heat-absorbing copper sheet, and circular groove. Furthermore, the heat-absorbing copper sheet directly contacts the surface of the charging gun, which can conduct heat to the flow chamber. Then, the cooling fan actively guides the airflow, combined with natural wind convection, to achieve efficient cooling of the charging gun body. This effectively avoids problems such as damage to electronic components, aging of insulation materials, and increased contact resistance caused by high temperature.

[0014] 2. This high-heat-dissipation charging gun for new energy vehicles, through the cooperation of structures such as the arc-shaped baffle, extension plate, first connecting plate, second connecting plate, fixing rod, sliding rod and return spring, realizes that the ventilation channel is automatically opened when the charging gun is inserted into the charging interface, effectively preventing dust and debris from entering the heat sink when not charging. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-heat-dissipation charging gun for new energy vehicles according to the present invention; Figure 2 This is a cross-sectional view of the heat sink of this utility model. Figure 3 for Figure 2Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the heat sink of this utility model; Figure 5 This is a schematic diagram of the arc-shaped baffle of this utility model; Figure 6 for Figure 1 Enlarged view of point B in the middle; Figure 7 This is a cross-sectional view of the fixing rod of this utility model.

[0016] In the diagram: 1. Charging interface body; 2. Charging gun body; 3. Heat sink; 4. Groove; 5. Flow chamber; 6. Heat-absorbing copper sheet; 7. Cooling fan; 8. First through slot; 9. Circular slot; 10. Second through slot; 11. Arc-shaped baffle; 12. Third through slot; 13. Clearance slot; 14. Fixing plate; 15. Assembly slot; 16. Locking bolt; 17. First connecting plate; 18. Fixing rod; 19. Sliding rod; 20. Second connecting plate; 21. Return spring; 22. Extension plate. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1 - Figure 7 This utility model provides a technical solution: a high-heat-dissipation charging gun for new energy vehicles, including a charging interface body 1 and a charging gun body 2. The charging gun body 2 is provided with two heat dissipation covers 3 on its exterior. The surface of the heat dissipation cover 3 facing the charging gun body 2 has a groove 4. The interior of the heat dissipation cover 3 has a flow chamber 5. A heat-absorbing copper sheet 6 is embedded in the surface of the groove 4 and extends into the interior of the flow chamber 5. One end of the heat-absorbing copper sheet 6 located inside the groove 4 is in contact with the surface of the charging gun body 2. A cooling fan 7 is fixedly connected to the surface of the upper heat dissipation cover 3. A filter screen is also provided in conjunction with the cooling fan 7. Since this is a conventional technical means, it will not be described in detail in the text. A first through groove 8 is provided on the surface of the upper heat dissipation cover 3. The flow chamber 5 is connected to the cooling fan 7 through the first through groove 8. A fixing component is provided on the exterior of the heat dissipation cover 3.

[0019] The surface of the heat sink 3 is provided with a second through groove 10, and an arc-shaped baffle 11 is slidably sleeved on the outside of the heat sink 3. The surface of the arc-shaped baffle 11 is provided with a third through groove 12, which is connected to the second through groove 10. A reset component is provided on the outside of the arc-shaped baffle 11.

[0020] The inner wall of the groove 4 is provided with several circular grooves 9, which are connected to the interior of the circulation chamber 5. Through the cooperation between the circular grooves 9, the second through groove 10 and the third through groove 12, the heat inside the groove 4 and the circulation chamber 5 can be discharged to the outside of the heat sink 3 by the circulation of external natural wind.

[0021] An extension plate 22 is fixedly connected to one end of the arc-shaped baffle 11 facing the charging interface body 1. A clearance groove 13 is provided inside the upper arc-shaped baffle 11, and the cooling fan 7 is located inside the clearance groove 13. When the charging gun body 2 and the charging interface body 1 are connected, the extension plate 22 will first contact the external entity of the interface, thereby forcing the arc-shaped baffle 11 to slide outside the heat sink 3. Subsequently, the third through groove 12 opened on the surface of the arc-shaped baffle 11 will align with and connect with the second through groove 10. Furthermore, due to the setting of the clearance groove 13, there will be no interference between the cooling fan 7 and the arc-shaped baffle 11.

[0022] In the above embodiment, a filter screen can be matched and installed inside the third channel 12 to prevent debris from entering the third channel 12.

[0023] The fixing assembly includes four fixing plates 14, which are fixedly connected to both sides of the two heat sinks 3 respectively. Each of the four fixing plates 14 has an assembly groove 15 on its surface, and a locking bolt 16 is provided inside the assembly groove 15. The cooperation between the fixing plates 14, the assembly groove 15 and the locking bolt 16 makes it easy to disassemble the heat sink 3, thereby facilitating its maintenance.

[0024] The reset assembly includes two second connecting plates 20, both of which are fixedly connected to the surface of the arc-shaped baffle 11, and a sliding rod 19 is fixedly connected to the surface of the second connecting plate 20.

[0025] A first connecting plate 17 is fixedly connected to the surface of the fixed plate 14, and a fixed rod 18 is fixedly connected to the surface of the first connecting plate 17. A sliding rod 19 slides through the interior of the fixed rod 18.

[0026] A return spring 21 is fixedly connected between the inner chambers of the sliding rod 19 and the fixed rod 18. When the arc-shaped baffle 11 moves, it will drive the second connecting plate 20 to move. At this time, the second connecting plate 20 will drive the sliding rod 19 to slide outside the fixed rod 18, and the return spring 21 will deform so that when the charging gun body 2 is pulled out later, the arc-shaped baffle 11 can be reset under the action of the return spring 21.

[0027] Working principle: When the high-heat-dissipation charging gun for new energy vehicles is in use, when the charging gun body 2 and the charging interface body 1 are connected, the extension plate 22 will first contact the external entity of the interface, thereby forcing the arc-shaped baffle 11 to slide outside the heat dissipation cover 3. When the arc-shaped baffle 11 moves, it will drive the second connecting plate 20 to move. At this time, the second connecting plate 20 will drive the sliding rod 19 to slide outside the fixed rod 18, and the return spring 21 will deform. Subsequently, the third through groove 12 opened on the surface of the arc-shaped baffle 11 will align with and connect with the second through groove 10. At this time, the groove 4 and the flow chamber 5 are connected to the external environment, and the heat-absorbing copper sheet 6 will conduct heat to the surface of the charging gun body 2.

[0028] Subsequently, the cooling fan 7 is turned on. Under the action of the cooling fan 7, the heat inside the groove 4 can be discharged through the setting of the circular groove 9, and then the heat inside the flow chamber 5 and the heat on the surface of the heat-absorbing copper plate 6 are discharged together, further improving the internal air circulation efficiency and improving the heat dissipation effect.

[0029] When maintenance or disassembly of the heat sink 3 is required, the heat sink 3 can be easily disassembled through the cooperation between the fixing plate 14, the mounting slot 15 and the locking bolt 16, thus facilitating its maintenance.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle strong heat dissipation type charging gun, comprising a charging interface body (1) and a charging gun body (2), characterized in that: The charging gun body (2) has two heat sinks (3) on its exterior. The heat sink (3) has a groove (4) on the side facing the charging gun body (2). The heat sink (3) has a flow chamber (5) inside. A heat-absorbing copper sheet (6) is embedded in the surface of the groove (4). The heat-absorbing copper sheet (6) extends into the flow chamber (5). One end of the heat-absorbing copper sheet (6) inside the groove (4) is in contact with the surface of the charging gun body (2). A cooling fan (7) is fixedly connected to the surface of the upper heat sink (3). A first through groove (8) is opened on the surface of the upper heat sink (3). The flow chamber (5) is connected to the cooling fan (7) through the first through groove (8). A fixing component is provided on the exterior of the heat sink (3).

2. The strong heat dissipation type charging gun for new energy vehicles according to claim 1, characterized in that: The surface of the heat sink (3) is provided with a second through groove (10), and an arc-shaped baffle (11) is slidably sleeved on the outside of the heat sink (3). The surface of the arc-shaped baffle (11) is provided with a third through groove (12), and the third through groove (12) is connected to the second through groove (10). A reset component is provided on the outside of the arc-shaped baffle (11).

3. The strong heat dissipation type charging gun for new energy vehicles according to claim 2, characterized in that: The inner wall of the groove (4) is provided with a circular groove (9), which is connected to the interior of the flow chamber (5).

4. The strong heat dissipation type charging gun for new energy vehicles according to claim 3, characterized in that: An extension plate (22) is fixedly connected to one end of the arc-shaped baffle (11) facing the charging interface body (1). A clearance groove (13) is provided inside the upper arc-shaped baffle (11), and the cooling fan (7) is located inside the clearance groove (13).

5. The strong heat dissipation type charging gun for new energy vehicles according to claim 4, characterized in that: The fixing assembly includes four fixing plates (14), which are respectively fixedly connected to the two sides of the two heat sinks (3). Each of the four fixing plates (14) has an assembly groove (15) on its surface, and a locking bolt (16) is provided inside the assembly groove (15).

6. A high-heat-dissipation charging gun for new energy vehicles according to claim 5, characterized in that: The reset assembly includes two second connecting plates (20), both of which are fixedly connected to the surface of the arc-shaped baffle (11), and a sliding rod (19) is fixedly connected to the surface of the second connecting plate (20).

7. A high-heat-dissipation charging gun for new energy vehicles according to claim 6, characterized in that: The surface of the fixed plate (14) is fixedly connected to the first connecting plate (17), and the surface of the first connecting plate (17) is fixedly connected to the fixed rod (18). The sliding rod (19) slides through the interior of the fixed rod (18).

8. A high-heat-dissipation charging gun for new energy vehicles according to claim 7, characterized in that: A return spring (21) is fixedly connected between the chambers inside the sliding rod (19) and the fixed rod (18).

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