Charging gun and charging equipment

Abstract

The utility model relates to the technical field of new energy, and discloses a charging gun and charging equipment. The charging gun comprises a gun shell, at least two contact pins and at least two cooling assemblies. The contact pin is arranged in the gun shell; the cooling assemblies are in one-to-one correspondence with the contact pins, the cooling assemblies are attached to the side walls of the first ends of the contact pins, the cooling assemblies are detachably connected to the contact pins, the cooling assemblies are provided with cooling cavities used for circulation of cooling media, and the cooling assemblies are used for cooling the contact pins. Wherein the cooling assembly is detachably connected to the contact pin, maintenance of the cooling assembly is facilitated, the cooling assembly is attached to the side wall of the first end of the contact pin, so that heat transmission can be performed between the cooling assembly and the contact pin, and a cooling medium circulating in the cooling cavity can cool the contact pin. According to the utility model, each contact pin corresponds to one cooling assembly, and each contact pin is independently cooled, so that the plurality of contact pins are uniformly cooled, the cooling efficiency of all contact pins is improved, the product quality of the charging gun is improved, and the service life of the charging gun is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of new energy technology, and in particular to a charging gun and charging equipment. Background Technology

[0002] With the rapid development of electric vehicles, charging efficiency and safety have become key considerations. As a crucial component connecting electric vehicles and charging stations, the performance of the charging gun directly impacts the stability and reliability of the charging process. Current charging guns typically feature multiple pins, which are responsible for transmitting power during charging and perform this critical task.

[0003] As charging power continues to increase, the pins generate a lot of heat during operation. If the heat cannot be dissipated in time, the pin temperature will rise sharply, which will not only accelerate the aging of the pin material and shorten its service life, but may also cause safety hazards, such as overheating leading to a decrease in insulation performance, or even serious consequences such as fire.

[0004] To address this issue, some charging guns currently incorporate a cooling mechanism. This mechanism creates cooling channels within the charging gun, allowing the cooling medium to circulate and cool multiple pins. However, this cooling method has significant drawbacks. Because the cooling medium sequentially cools multiple pins, it continuously absorbs heat from the pins during the cooling process, causing its own temperature to gradually rise. By the time the cooling medium reaches the last pin, its temperature is already relatively high, resulting in a significant decrease in cooling capacity. Consequently, the last pin cannot be effectively cooled, and its temperature is significantly higher than the other pins, leading to poor overall cooling performance.

[0005] Therefore, there is an urgent need for a charging gun and charging equipment to solve the aforementioned problems. Utility Model Content

[0006] Based on the above, the purpose of this utility model is to provide a charging gun and charging device, in which each pin corresponds to a cooling component, and each pin is cooled independently, ensuring uniform cooling of multiple pins, improving the cooling efficiency of all pins, and improving the product quality and service life of the charging gun.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] On the one hand, a charging gun is provided, comprising:

[0009] Gun casing;

[0010] At least two pins are disposed within the gun housing, each pin having a first end and a second end disposed opposite to each other.

[0011] At least two cooling components are provided, each corresponding to a pin. The cooling component is attached to the sidewall of the first end of the pin and is detachably connected to the pin. Each cooling component is provided with a cooling chamber for the flow of cooling medium and is used to cool the pin.

[0012] As a preferred technical solution for a charging gun, the first end of the pin is provided with a flat portion, and the cooling assembly is provided with a heat-conducting plate, which is attached to the flat portion.

[0013] As a preferred technical solution for a charging gun, the cooling assembly further includes a cover, the cover having an opening on the side near the pin, and the heat-conducting plate being sealed to the opening to form the cooling cavity between the cover and the heat-conducting plate.

[0014] As a preferred technical solution for a charging gun, a sealing ring is provided between the cover and the heat-conducting plate.

[0015] As a preferred technical solution for a charging gun, the heat-conducting plate is made of ceramic.

[0016] As a preferred technical solution for a charging gun, the cover is provided with multiple first through holes, the heat-conducting plate is provided with multiple second through holes, and the flat part is provided with multiple first threaded holes. The first through holes, the second through holes and the first threaded holes correspond one-to-one, and the bolts pass through the first through holes and the second through holes and are threadedly connected to the first threaded holes.

[0017] As a preferred technical solution for a charging gun, the charging gun further includes a liquid-cooled cable, which includes multiple water pipes and conductive wires covering the water pipes. The cooling chamber is provided with a water inlet and a water outlet, the water pipes are respectively connected to the water inlet and the water outlet, and the conductive wires are electrically connected to the pins.

[0018] As a preferred technical solution for a charging gun, the charging gun further includes a pressure block, the cooling components are symmetrically arranged on both sides of the pressure block, the pin is connected to the side of the cooling components away from the pressure block, a receiving cavity is formed between the pressure block and the inner wall of the gun shell, and the first end of the pin and the cooling components are located in the receiving cavity.

[0019] As a preferred technical solution for a charging gun, the charging gun further includes a gun head and an anti-contact cap. The gun head is connected to the gun housing, the second end of the pin is located inside the gun head, and the end face of the second end of the pin is provided with a second threaded hole. The anti-contact cap is threadedly connected to the second threaded hole.

[0020] On the other hand, a charging device is provided, including the charging gun described in any of the above embodiments.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention provides a charging gun and charging device, wherein a cooling component is detachably connected to the pins for easy maintenance. The cooling component is attached to the side wall of the first end of the pin to enable heat transfer between the cooling component and the pin. The cooling medium flowing within the cooling chamber cools the pins. This invention provides one cooling component for each pin, ensuring independent cooling for each pin and uniform cooling of all pins. This improves the cooling efficiency of all pins and enhances the product quality and lifespan of the charging gun. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the charging gun provided in a specific embodiment of this utility model;

[0025] Figure 2 This is a partial structural schematic diagram of the charging gun provided in a specific embodiment of this utility model;

[0026] Figure 3 This is a partial structural cross-sectional view of the charging gun provided in a specific embodiment of this utility model;

[0027] Figure 4 This is a partial exploded view of the charging gun provided in a specific embodiment of this utility model.

[0028] The markings in the image are as follows:

[0029] 1. Gun casing;

[0030] 2. Insert pin; 21. Flat part; 211. First threaded hole;

[0031] 3. Cooling assembly; 31. Heat-conducting plate; 311. Second through hole; 32. Cover; 321. First through hole; 33. Cooling chamber; 34. Sealing ring; 35. Bolt;

[0032] 4. Liquid-cooled cable; 41. Water pipe; 42. Conductive wire;

[0033] 5. Hose clamp; 6. Pressure block; 7. Gun nozzle; 8. Anti-contact cap; 9. Waterproof ring. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] like Figures 1-3As shown, this embodiment provides a charging device, which includes a charging gun. The charging gun includes a gun housing 1, at least two pins 2, and at least two cooling components 3. Specifically, the pins 2 are disposed within the gun housing 1, and the gun housing 1 has a cavity. The pins 2 are installed within the cavity and have a first end and a second end disposed opposite to each other. The cooling components 3 correspond one-to-one with the pins 2. The cooling components 3 are attached to the sidewall of the first end of the pins 2 and are detachably connected to the pins 2. The cooling components 3 are provided with a cooling cavity 33 for the flow of a cooling medium. The cooling components 3 are used to cool the pins 2. The detachable connection of the cooling components 3 to the pins 2 facilitates maintenance of the cooling components 3. The attachment of the cooling components 3 to the sidewall of the first end of the pins 2 enables heat transfer between the cooling components 3 and the pins 2. The cooling medium flowing within the cooling cavity 33 cools the pins 2. In this invention, each pin 2 corresponds to a cooling component 3, and each pin 2 is cooled independently, ensuring uniform cooling of multiple pins 2, improving the cooling efficiency of all pins 2, and enhancing the product quality and service life of the charging gun. In this embodiment, there are two pins 2 and two cooling components 3.

[0039] Preferably, such as Figure 3 and Figure 4 As shown, the first end of the pin 2 is provided with a flat portion 21, and the cooling assembly 3 is provided with a heat-conducting plate 31, which is attached to the flat portion 21. On the one hand, the first end of the pin 2 contacts the heat-conducting plate 31 of the cooling assembly 3 through the flat portion 21, which increases the contact area and thus improves the heat transfer efficiency; on the other hand, the flat portion 21 of the pin 2 facilitates the detachable connection of the cooling assembly 3 to the flat portion 21 of the pin 2.

[0040] Furthermore, the cooling assembly 3 also includes a cover 32, which has an opening on the side near the pin 2. A heat-conducting plate 31 is sealed to the opening so that a cooling cavity 33 is formed between the cover 32 and the heat-conducting plate 31. When the cooling medium flows in the cooling cavity 33, the cooling medium can exchange heat with the pin 2 through the heat-conducting plate 31.

[0041] In this embodiment, a sealing ring 34 is provided between the cover 32 and the heat-conducting plate 31 to achieve a sealed connection between the two. Preferably, the heat-conducting plate 31 is made of ceramic material. Ceramic material has a high thermal conductivity, which improves the cooling efficiency of the cooling component 3. Moreover, ceramic material has high strength and is not easily deformed. The heat-conducting plate 31 and the sealing ring 34 achieve a good sealing effect.

[0042] In this embodiment, the cover 32 is provided with multiple first through holes 321, the heat-conducting plate 31 is provided with multiple second through holes 311, and the flat part 21 is provided with multiple first threaded holes 211. The first through holes 321, second through holes 311, and first threaded holes 211 correspond one-to-one. Bolts 35 pass through the first through holes 321 and second through holes 311 and are threaded to the first threaded hole 211, realizing a detachable connection between the cooling component 3 and the flat part 21 of the pin 2. In this embodiment, there are four first through holes 321, four second through holes 311, and four first threaded holes 211. The four first through holes 321 are located at the four corners of the cover 32, the four second through holes 311 are located at the four corners of the heat-conducting plate 31, and the four first threaded holes 211 are located at the four corners of the flat part 21.

[0043] Furthermore, such as Figure 2 and Figure 3 As shown, the charging gun also includes a liquid-cooled cable 4, which includes multiple water pipes 41 and conductive wires 42 covering the water pipes 41. The cooling chamber 33 is provided with a water inlet and a water outlet. The water pipes 41 are respectively connected to the water inlet and the water outlet. The conductive wires 42 are electrically connected to the pins 2, realizing the electrical conduction of the charging gun. In this embodiment, the side of the cover 32 near the liquid-cooled cable 4 is provided with a water inlet and a water outlet. Each cover 32 corresponds to two water pipes 41, and the two water pipes 41 are connected to the water inlet and the water outlet through hose clamps 5.

[0044] In this embodiment, the charging gun also includes a pressure block 6, cooling components 3 are symmetrically arranged on both sides of the pressure block 6, and the pin 2 is connected to the side of the cooling component 3 away from the pressure block 6. A receiving cavity is formed between the pressure block 6 and the inner wall of the gun shell 1. The first end of the pin 2 and the cooling component 3 are located in the receiving cavity. The pin 2 and the cooling component 3 are fixed by the pressure block 6.

[0045] In this embodiment, the charging gun also includes a gun head 7 and a protective cap 8. The gun head 7 is connected to the gun housing 1. The second end of the pin 2 is located inside the gun head 7, and the end face of the second end of the pin 2 is provided with a second threaded hole. The protective cap 8 is threaded into the second threaded hole. The pin 2 inside the gun head 7 can be connected to the device to be charged. The protective cap 8 at the second end of the pin 2 can prevent the operator from accidentally touching the end of the pin 2 and causing the risk of electric shock.

[0046] In this embodiment, the gun head 7 is provided with a plug groove on the side away from the gun housing 1. The bottom of the plug groove is provided with at least two connecting holes, and the connecting holes correspond one-to-one with the pins 2. The pins 2 pass through the connecting holes and extend into the plug groove. A waterproof ring 9 is provided between the pins 2 and the inner wall of the connecting holes to achieve a seal.

[0047] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A charging gun, characterized in that, include: Gun casing (1); At least two pins (2) are disposed inside the gun housing (1), and the pins (2) have a first end and a second end disposed opposite to each other; At least two cooling components (3) are provided, and the cooling components (3) correspond one-to-one with the pins (2). The cooling components (3) are attached to the side wall of the first end of the pins (2) and are detachably connected to the pins (2). The cooling components (3) are provided with cooling chambers (33) for circulating cooling medium and are used to cool the pins (2).

2. The charging gun according to claim 1, characterized in that, The first end of the pin (2) is provided with a flat portion (21), and the cooling assembly (3) is provided with a heat-conducting plate (31), which is attached to the flat portion (21).

3. The charging gun according to claim 2, characterized in that, The cooling assembly (3) also includes a cover (32), which has an opening on the side near the pin (2), and the heat-conducting plate (31) is sealed to the opening so that the cooling cavity (33) is formed between the cover (32) and the heat-conducting plate (31).

4. The charging gun according to claim 3, characterized in that, A sealing ring (34) is provided between the cover (32) and the heat-conducting plate (31).

5. The charging gun according to claim 2, characterized in that, The heat-conducting plate (31) is made of ceramic.

6. The charging gun according to claim 3, characterized in that, The cover (32) is provided with a plurality of first through holes (321), the heat-conducting plate (31) is provided with a plurality of second through holes (311), and the flat part (21) is provided with a plurality of first threaded holes (211). The first through holes (321), the second through holes (311) and the first threaded holes (211) correspond one to one. The bolts (35) pass through the first through holes (321) and the second through holes (311) and are threaded to the first threaded holes (211).

7. The charging gun according to claim 1, characterized in that, The charging gun also includes a liquid-cooled cable (4), which includes multiple water pipes (41) and a conductive wire (42) covering the water pipes (41). The cooling chamber (33) is provided with an inlet and an outlet. The water pipes (41) are respectively connected to the inlet and the outlet. The conductive wire (42) is electrically connected to the pin (2).

8. The charging gun according to any one of claims 1-7, characterized in that, The charging gun also includes a pressure block (6), the cooling assembly (3) is symmetrically arranged on both sides of the pressure block (6), the pin (2) is connected to the side of the cooling assembly (3) away from the pressure block (6), a receiving cavity is formed between the pressure block (6) and the inner wall of the gun shell (1), and the first end of the pin (2) and the cooling assembly (3) are located in the receiving cavity.

9. The charging gun according to any one of claims 1-7, characterized in that, The charging gun also includes a gun head (7) and an anti-touch cap (8). The gun head (7) is connected to the gun shell (1). The second end of the pin (2) is located inside the gun head (7). The end face of the second end of the pin (2) is provided with a second threaded hole. The anti-touch cap (8) is threadedly connected to the second threaded hole.

10. A charging device, characterized in that, Includes the charging gun as described in any one of claims 1-9.

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