Direct-current gun convenient for replacing terminal

Abstract

The utility model discloses a direct current gun convenient for replacing terminals, which comprises a gun body, a gun head and a terminal connecting seat which are arranged on the gun body, a large terminal and a small terminal which are arranged on the terminal connecting seat, a baffle plate which is arranged on the terminal connecting seat, a first internal fixing screw, a second internal fixing screw and an external fixing screw, one end of the large terminal is detachably installed on the terminal connecting base, the other end of the large terminal is detachably installed on the gun head, one end of the small terminal is detachably installed on the terminal connecting base, the other end of the small terminal is detachably installed on the gun head, and the terminal connecting base is installed on the gun body through a first inner fixing screw. The baffle is installed on the terminal connecting base through the second inner fixing screws, the gun head is installed on the gun body through the outer fixing screws, and the multiple large terminals, the multiple small terminals, the multiple first inner fixing screws, the multiple second inner fixing screws and the multiple outer fixing screws are arranged at intervals. The charging gun is easy and convenient to disassemble and assemble and easy to replace and maintain, and the service life of the charging gun is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of charging gun head technology, and more particularly to a DC gun with easily replaceable terminals. Background Technology

[0002] Currently, with the rapid development of the electric vehicle industry, the charging gun, as the only charging connection component for electric vehicles, has increasingly higher technical and safety requirements. After prolonged use, the charging terminals inside the charging gun head are prone to plating peeling or severe wear. Most of the existing charging gun head terminals are welded or riveted inside the charging gun head, making it difficult to replace the terminals. When the terminals are damaged, the repair cost is high, and the service life of the charging gun head is greatly reduced. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a DC charging gun with easily replaceable terminals. Since both the large and small terminals are detachable, when either the large or small terminal is damaged, the fixing of the large and small terminals can be released by removing the gun head and baffle, allowing for easy disassembly and replacement. This simplifies disassembly and maintenance, thus extending the charging gun's lifespan.

[0004] To achieve the above objectives, the present invention provides a DC gun for easy terminal replacement, comprising a gun body, a gun head and a terminal connector mounted on the gun body, a large terminal and a small terminal mounted on the terminal connector, a baffle mounted on the terminal connector, a first internal fixing screw and a second internal fixing screw, and an external fixing screw. One end of the large terminal is detachably mounted on the terminal connector, and the other end of the large terminal is detachably mounted on the gun head. One end of the small terminal is detachably mounted on the terminal connector, and the other end of the small terminal is detachably mounted on the gun head. The terminal connector is mounted on the gun body by the first internal fixing screw, the baffle is mounted on the terminal connector by the second internal fixing screw, and the gun head is mounted on the gun body by the external fixing screw. Multiple large terminals, small terminals, the first internal fixing screw, the second internal fixing screw, and the external fixing screw are provided and spaced apart.

[0005] As a preferred embodiment, the gun body is provided with an inner groove, a first electrical connection groove and a second electrical connection groove, both of which are in communication with the inner groove. The terminal connector is placed in the inner groove, and there are multiple first electrical connection grooves and second electrical connection grooves arranged at intervals.

[0006] As a preferred embodiment, the terminal connector is provided with a first electrical connection post and a second electrical connection post. The first electrical connection post is placed in the first electrical connection slot, and the second electrical connection post is placed in the second electrical connection slot. There are multiple first electrical connection posts and second electrical connection posts, which are spaced apart.

[0007] As a preferred embodiment, the gun body is provided with a mounting groove and a first internal fixing screw groove, the terminal connector has a mounting platform, the mounting platform is provided with a first external fixing screw groove, and the first internal fixing screw is sequentially installed in the first external fixing screw groove and the first internal fixing screw groove. There are multiple first external fixing screw grooves and the first internal fixing screw grooves, which are spaced apart.

[0008] As a preferred embodiment, the gun head is provided with a first slot, a second slot, a first through hole, a second through hole, a first rear end slot, and a second rear end slot. One end of the first through hole is connected to the first slot, and the other end of the first through hole is connected to the first rear end slot. One end of the second through hole is connected to the second slot, and the other end of the second through hole is connected to the second rear end slot. One end of the large terminal passes through the first rear end slot and the first through hole in sequence and is placed in the first slot. One end of the small terminal passes through the second rear end slot and the second through hole in sequence and is placed in the second slot. There are multiple first slots, second slots, first through holes, second through holes, first rear end slots, and second rear end slots, which are spaced apart.

[0009] As a preferred embodiment, the large terminal has a first electrical connection portion, the small terminal has a second electrical connection portion, the terminal connector is provided with a first receiving groove and a second receiving groove, one end of the first electrical connection post is located in the first receiving groove, one end of the second electrical connection post is located in the second receiving groove, one end of the first electrical connection portion is located in the first receiving groove, the other end of the first electrical connection portion is located in the first rear end groove, one end of the second electrical connection portion is located in the second receiving groove, and the other end of the second electrical connection portion is located in the second rear end groove.

[0010] As a preferred embodiment, the first electrical connection portion is provided with a first slot, the second electrical connection portion is provided with a second slot, the first electrical connection portion is sleeved on the first electrical connection post through the first slot, and the second electrical connection portion is sleeved on the second electrical connection post through the second slot.

[0011] As a preferred embodiment, the gun head has a ring platform, the ring platform is provided with a second outer fastening screw groove, the gun body is provided with a second inner fastening screw groove, and the outer fixing screw is sequentially installed in the second outer fastening screw groove and the second inner fastening screw groove.

[0012] As a preferred embodiment, the baffle is provided with a first through hole and a second through hole, the first electrical connection part has a first retaining ring, the second electrical connection part has a second retaining ring, the first electrical connection part passes through the first through hole, the second electrical connection part passes through the second through hole, the diameter of the first through hole is smaller than the outer diameter of the first retaining ring, the diameter of the second through hole is smaller than the outer diameter of the second retaining ring, and there are multiple first through holes and second through holes, which are spaced apart.

[0013] As a preferred embodiment, the baffle is provided with a third outer fastening screw groove, the terminal connector is provided with a third inner fastening screw groove, and the second inner fixing screw is sequentially installed in the third outer fastening screw groove and the third inner fastening screw groove.

[0014] The beneficial effects of this utility model are as follows: Since both the large and small terminals are detachable, when the large or small terminals are damaged, the fixing of the large and small terminals can be released by removing the gun head and the baffle, and then the large and small terminals can be disassembled. The disassembly and assembly are simple and convenient, easy to replace and repair, and the service life of the charging gun is improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a DC gun with easily replaceable terminals according to this utility model.

[0016] Figure 2 for Figure 1 An exploded view of a DC gun with easily replaceable terminals.

[0017] Figure 3 for Figure 2 A schematic diagram of the structure of a DC gun body for easy terminal replacement.

[0018] Figure 4 for Figure 2 A schematic diagram of the structure of the gun head in a DC gun with easily replaceable terminals.

[0019] Figure 5 for Figure 4 A structural diagram of the gun head from another angle.

[0020] Figure 6 for Figure 2 A schematic diagram of the terminal connector in a DC gun that facilitates terminal replacement.

[0021] Figure 7 for Figure 2 A schematic diagram of a portion of the structure of a DC gun with easily replaceable terminals.

[0022] Figure 8 for Figure 2 A schematic diagram of the structure of a baffle plate in a DC gun that facilitates terminal replacement.

[0023] Reference numerals: 100, Gun body; 110, Inner groove; 120, First electrical connection groove; 130, Second electrical connection groove; 140, Mounting groove; 150, First inner fixing screw groove; 160, Second inner fastening screw groove; 200, Gun head; 210, First slot; 220, Second slot; 230, First through hole; 240, Second through hole; 250, First rear end groove; 260, Second rear end groove; 270, Ring platform; 271, Second outer fastening screw groove; 300, Terminal connector; 310, First electrical connection post; 320, Second electrical connection post; 330. Mounting platform; 331, first external fixing screw groove; 340, first receiving groove; 350, second receiving groove; 360, third internal fastening screw groove; 400, large terminal; 410, first electrical connection part; 411, first empty groove; 412, first retaining ring; 500, small terminal; 510, second electrical connection part; 511, second empty groove; 512, second retaining ring; 600, baffle; 610, first through hole; 620, second through hole; 630, third external fastening screw groove; 700, first internal fixing screw; 800, second internal fixing screw; 900, external fixing screw. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0027] like Figures 1 to 8 As shown, this utility model provides a DC gun for easy terminal replacement, including a gun body 100, a gun head 200 mounted on the gun body 100, a terminal connector 300, a large terminal 400 and a small terminal 500 mounted on the terminal connector 300, a baffle 600 mounted on the terminal connector 300, a first internal fixing screw 700 and a second internal fixing screw 800, and an external fixing screw 900. One end of the large terminal 400 is detachably mounted to the terminal connector 300, and the other end of the large terminal 400 is detachably mounted to the gun head 200. One end of the small terminal 500 is detachably mounted to the terminal connector 300, and the other end of the small terminal 500 is detachably mounted to the gun head 200. The terminal connector 300 is secured by the first internal fixing screw 700. Mounted on the gun body 100, the baffle 600 is mounted on the terminal connector 300 via the second internal fixing screw 800, and the gun head 200 is mounted on the gun body 100 via the external fixing screw 900. Multiple large terminals 400, small terminals 500, the first internal fixing screw 700, the second internal fixing screw 800, and the external fixing screw 900 are spaced apart. Since both the large terminal 400 and the small terminal 500 are detachable, if either the large terminal 400 or the small terminal 500 is damaged, the fixing to the large terminal 400 and the small terminal 500 can be released by removing the gun head 200 and the baffle 600, allowing for easy disassembly and replacement, thus improving the service life of the charging gun.

[0028] The gun body 100 is provided with an inner groove 110, a first electrical connection groove 120 and a second electrical connection groove 130. The first electrical connection groove 120 and the second electrical connection groove 130 are both connected to the inner groove 110. The terminal connector 300 is placed in the inner groove 110. There are multiple first electrical connection grooves 120 and second electrical connection grooves 130, which are arranged at intervals.

[0029] The terminal connector 300 is provided with a first electrical connection post 310 and a second electrical connection post 320. The first electrical connection post 310 is placed in a first electrical connection groove, and the second electrical connection post 320 is placed in a second electrical connection groove 130. There are multiple first electrical connection posts 310 and second electrical connection posts 320, which are arranged at intervals.

[0030] The gun body 100 is provided with a mounting groove 140 and a first internal fixing screw groove 150. The terminal connector 300 has a mounting platform 330, which is provided with a first external fixing screw groove 331. First internal fixing screws 700 are sequentially installed in the first external fixing screw groove 331 and the first internal fixing screw groove 150. There are multiple first external fixing screw grooves 331 and first internal fixing screw grooves 150, which are spaced apart. The mounting platform 330 is installed in the mounting groove 140.

[0031] The gun head 200 is provided with a first slot 210, a second slot 220, a first through hole 230, a second through hole 240, a first rear end slot 250, and a second rear end slot 260. One end of the first through hole 230 is connected to the first slot 210, and the other end of the first through hole 230 is connected to the first rear end slot 250. One end of the second through hole 240 is connected to the second slot 220, and the other end of the second through hole 240 is connected to the second rear end slot 260. One end of the large terminal 400 passes through the first rear end slot 250 and the first through hole 230 in sequence and is placed in the first slot 210. One end of the small terminal 500 passes through the second rear end slot 260 and the second through hole 240 in sequence and is placed in the second slot 220. There are multiple first slots 210, second slots 220, first through holes 230, second through holes 240, first rear end slots 250, and second rear end slots 260, which are arranged at intervals. The diameter of the first through hole 230 is smaller than the diameter of the first rear end groove 250, the diameter of the first rear end groove 250 is smaller than the diameter of the first slot 210, the diameter of the second through hole 240 is smaller than the diameter of the second rear end groove 260, and the diameter of the second rear end groove 260 is smaller than the diameter of the second slot 220.

[0032] The large terminal 400 has a first electrical connection portion 410, the small terminal 500 has a second electrical connection portion 510, and the terminal connector 300 is provided with a first receiving groove 340 and a second receiving groove 350. One end of the first electrical connection post 310 is located in the first receiving groove 340, one end of the second electrical connection post 320 is located in the second receiving groove 350, one end of the first electrical connection portion 410 is located in the first receiving groove 340, the other end of the first electrical connection portion 410 is located in the first rear end groove 250, one end of the second electrical connection portion 510 is located in the second receiving groove 350, and the other end of the second electrical connection portion 510 is located in the second rear end groove 260.

[0033] The first electrical connection part 410 is provided with a first slot 411, and the second electrical connection part 510 is provided with a second slot 511. The first electrical connection part 410 is sleeved on the first electrical connection post 310 through the first slot 411, and the second electrical connection part 510 is sleeved on the second electrical connection post 320 through the second slot 511.

[0034] The gun head 200 has a ring platform 270, which is provided with a second outer fastening screw groove 271. The gun body 100 is provided with a second inner fastening screw groove 160. The outer fixing screw 900 is sequentially installed in the second outer fastening screw groove 271 and the second inner fastening screw groove 160. In this embodiment, the gun head 200 is provided with a plurality of spaced grooves for accommodating the second inner fixing screw 800. When the gun head 200 is installed on the gun body 100, the second inner fixing screw 800 is located in the groove, thereby ensuring a tight fit between the gun head 200 and the gun body 100.

[0035] The baffle 600 is provided with a first through hole 610 and a second through hole 620. The first electrical connection part 410 has a first retaining ring 412, and the second electrical connection part 510 has a second retaining ring 512. The first electrical connection part 410 passes through the first through hole 610, and the second electrical connection part 510 passes through the second through hole 620. The diameter of the first through hole 610 is smaller than the outer diameter of the first retaining ring 412, and the diameter of the second through hole 620 is smaller than the outer diameter of the second retaining ring 512. There are multiple first through holes 610 and second through holes 620, which are arranged at intervals.

[0036] The baffle 600 is provided with a third outer fastening screw groove 630, and the terminal connector 300 is provided with a third inner fastening screw groove 360. The second inner fixing screw 800 is sequentially installed in the third outer fastening screw groove 630 and the third inner fastening screw groove 360. In this embodiment, the baffle 600 is also provided with a plurality of spaced-apart circular holes for mating with the first inner fixing screw 700. After the baffle 600 is installed on the terminal connector 300, the circular holes can be used to accommodate the first inner fixing screw 700, ensuring a tight fit between the baffle 600 and the terminal connector 300.

[0037] The working principle of this utility model is as follows: During assembly, the terminal connector 300 is placed in the inner groove 110, so that the first electrical connection post 310 is placed in the first electrical connection groove 120 and the second electrical connection post 320 is placed in the second electrical connection groove 130. Then, by sequentially installing the first internal fixing screw 700 into the first external fixing screw groove 331 and the first internal fixing screw groove 150, the terminal connector 300 can be installed onto the gun body 100. Next, the first electrical connection part 410 of the large terminal 400 is sleeved onto the first electrical connection post 310 through the first slot 411, and the second electrical connection part 510 of the small terminal 500 is sleeved onto the second electrical connection post 320 through the second slot 511. Then, the baffle 600 is passed through the large terminal 400 and the small terminal 500 through the first through hole 610 and the second through hole 620. The charging head 200 abuts against the terminal connector 300, and then the second inner fixing screw 800 is sequentially installed in the third outer fastening screw groove 630 and the third inner fastening screw groove 360 ​​to stop and fix the large terminal 400 and the small terminal 500. Then, the charging head 200 passes through the large terminal 400 through the first rear end groove 250, the first through hole 230 and the first slot 210, and passes through the small terminal 500 through the second rear end groove 260, the second through hole 240 and the second slot 220. Then, the outer fixing screw 900 is sequentially installed in the second outer fastening screw groove 271 and the second inner fastening screw groove 160 to install the charging head 200 onto the charging body 100. This completes the assembly. Disassembly is performed in the reverse order of the above operations. This application is simple and convenient to assemble and disassemble, easy to replace and maintain, and improves the service life of the charging gun.

[0038] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A DC gun with easy replacement of the terminal, characterized by The device includes a gun body, a gun head and a terminal connector mounted on the gun body, a large terminal and a small terminal mounted on the terminal connector, a baffle mounted on the terminal connector, a first internal fixing screw and a second internal fixing screw, and an external fixing screw. One end of the large terminal is detachably mounted on the terminal connector, and the other end of the large terminal is detachably mounted on the gun head. One end of the small terminal is detachably mounted on the terminal connector, and the other end of the small terminal is detachably mounted on the gun head. The terminal connector is mounted on the gun body by the first internal fixing screw, the baffle is mounted on the terminal connector by the second internal fixing screw, and the gun head is mounted on the gun body by the external fixing screw. There are multiple large terminals, small terminals, the first internal fixing screw, the second internal fixing screw, and the external fixing screw, all spaced apart.

2. The DC gun with easily replaceable terminals according to claim 1, characterized in that: The gun body is provided with an inner groove, a first electrical connection groove and a second electrical connection groove. Both the first electrical connection groove and the second electrical connection groove are connected to the inner groove. The terminal connector is placed in the inner groove. There are multiple first electrical connection grooves and second electrical connection grooves, which are spaced apart.

3. The DC gun with easily replaceable terminals according to claim 2, characterized in that: The terminal connector is provided with a first electrical connection post and a second electrical connection post. The first electrical connection post is placed in the first electrical connection slot, and the second electrical connection post is placed in the second electrical connection slot. There are multiple first electrical connection posts and second electrical connection posts, which are spaced apart.

4. The DC gun with easily replaceable terminals according to claim 3, characterized in that: The gun body is provided with a mounting groove and a first internal fixing screw groove. The terminal connector has a mounting platform. The mounting platform is provided with a first external fixing screw groove. The first internal fixing screw is installed in the first external fixing screw groove and the first internal fixing screw groove in sequence. There are multiple first external fixing screw grooves and the first internal fixing screw grooves, which are spaced apart.

5. The DC gun with easily replaceable terminals according to claim 3, characterized in that: The gun head is provided with a first slot, a second slot, a first through hole, a second through hole, a first rear end slot, and a second rear end slot. One end of the first through hole is connected to the first slot, and the other end of the first through hole is connected to the first rear end slot. One end of the second through hole is connected to the second slot, and the other end of the second through hole is connected to the second rear end slot. One end of the large terminal passes through the first rear end slot and the first through hole in sequence and is placed in the first slot. One end of the small terminal passes through the second rear end slot and the second through hole in sequence and is placed in the second slot. There are multiple first slots, second slots, first through holes, second through holes, first rear end slots, and second rear end slots, which are spaced apart.

6. A DC gun with terminals for easy replacement according to claim 5, characterized in that: The large terminal has a first electrical connection portion, the small terminal has a second electrical connection portion, and the terminal connector is provided with a first receiving groove and a second receiving groove. One end of the first electrical connection post is located in the first receiving groove, one end of the second electrical connection post is located in the second receiving groove, one end of the first electrical connection portion is located in the first receiving groove, and the other end of the first electrical connection portion is located in the first rear end groove. One end of the second electrical connection portion is located in the second receiving groove, and the other end of the second electrical connection portion is located in the second rear end groove.

7. A DC gun with terminals for easy replacement according to claim 6, characterized in that: The first electrical connection part is provided with a first slot, and the second electrical connection part is provided with a second slot. The first electrical connection part is sleeved on the first electrical connection post through the first slot, and the second electrical connection part is sleeved on the second electrical connection post through the second slot.

8. The DC gun with easily replaceable terminals according to claim 6, characterized in that: The gun head has a ring platform, the ring platform is provided with a second outer fastening screw groove, the gun body is provided with a second inner fastening screw groove, and the outer fixing screw is installed in the second outer fastening screw groove and the second inner fastening screw groove in sequence.

9. A DC gun with easily replaceable terminals according to claim 6, characterized in that: The baffle is provided with a first through hole and a second through hole. The first electrical connection part has a first retaining ring, and the second electrical connection part has a second retaining ring. The first electrical connection part passes through the first through hole, and the second electrical connection part passes through the second through hole. The diameter of the first through hole is smaller than the outer diameter of the first retaining ring, and the diameter of the second through hole is smaller than the outer diameter of the second retaining ring. There are multiple first through holes and second through holes, which are spaced apart.

10. The DC gun with easily replaceable terminals according to claim 9, characterized in that: The baffle is provided with a third outer fastening screw groove, and the terminal connector is provided with a third inner fastening screw groove. The second inner fixing screw is installed in the third outer fastening screw groove and the third inner fastening screw groove in sequence.

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