Terminal assembling component and charging gun

Abstract

The utility model discloses a terminal assembling component and a charging gun, relates to the technical field of charging guns, and solves the problem that a terminal cannot be quickly mounted and dismounted due to the mounting and fixing mode of the terminal in the existing charging gun. The terminal assembling assembly comprises at least one terminal main body, the terminal main body is provided with a welding end, the welding end is welded with a cable, and the number of the terminal main body is at least one; the mounting seat is provided with at least one assembling hole, and the terminal main body is arranged in the assembling hole and is connected with the mounting seat; the terminal main body is provided with a clamping groove close to the welding end, and the clamping groove is clamped with a clamping ring piece to fix the terminal main body on the mounting seat; the outer diameter of the clamping ring piece is larger than the hole diameter of the assembly hole, and the maximum outer diameter of the welding end is larger than the hole diameter. According to the utility model, the terminal main body is fixedly arranged on the mounting seat through the welding end and the snap ring piece, so that the fixed connection structure between the terminal main body and the mounting seat is simplified, and meanwhile, the maintenance and replacement speed is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns, and in particular to a terminal assembly component and a charging gun. Background Art

[0002] With the rapid development of the electric vehicle industry, the construction of charging infrastructure has received increasing attention. As a key component in electric vehicle charging, charging guns require frequent plugging and unplugging during use. Currently, charging gun terminals are typically fixed in place using screws or welding. These traditional fixing methods are inconvenient when frequent disassembly and installation are required, making disassembly and installation difficult. For example, when maintaining or replacing terminals, traditional fixing methods often make the disassembly process complex and time-consuming, thus affecting work efficiency and service quality.

[0003] Therefore, there is an urgent need to provide a terminal fixing method that is convenient and can be quickly installed and removed. Utility Model Content

[0004] The purpose of the present utility model is to provide a terminal assembly component and a charging gun, which solve the problem that the terminals in the existing charging gun cannot be quickly installed and removed due to the installation and fixing method of the terminals.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a terminal assembly assembly, the terminal assembly assembly comprising:

[0007] A terminal body, wherein the terminal body is provided with a welding end, the welding end is welded to the cable, and the number of the terminal body is at least one;

[0008] A mounting seat, wherein the mounting seat is provided with at least one assembly hole, and the terminal body is placed in the assembly hole and connected to the mounting seat;

[0009] The terminal body is provided with a clamping groove near the welding end, and the clamping groove is clamped with a clamping ring to fix the terminal body on the mounting seat;

[0010] Wherein, the outer diameter of the clamping ring is larger than the hole diameter of the assembly hole, and the maximum outer diameter of the welding end is larger than the hole diameter.

[0011] Preferably, a clearance groove is provided at the bottom of the clamping groove;

[0012] The clamping ring is provided with a clamping ring protrusion, and the clamping ring protrusion is inserted into the air-avoiding groove to fix the clamping ring on the terminal body.

[0013] Preferably, the clamping ring comprises two abutting ends, and the inside of the abutting ends is extended inwardly and enlarged to form a clamping portion;

[0014] Two return grooves are provided at the bottom of the clamping groove, and one of the clamping parts is respectively placed in the two return grooves.

[0015] Preferably, at least one convex beam is provided at the front end of the mounting seat, one end of the convex beam is connected to an arc-shaped member, the arc-shaped member and the convex beam are respectively provided with a limiting rib, and the two limiting ribs are respectively in contact with one of the abutting ends.

[0016] Preferably, the terminal body is provided with a first stop portion protruding outwardly away from the central axis of the terminal body near the welding end;

[0017] A second stop portion is provided in the assembly hole and extends toward the central axis of the assembly hole. The second stop portion is used to abut against the first stop portion to fix the terminal body on the mounting seat.

[0018] Preferably, a side wall of the assembly hole extends from the back end of the mounting seat in a direction away from the assembly hole to form an assembly plate, and a positioning rib is provided on a side of the assembly plate connected to the side wall, and the length direction of the positioning rib is parallel to the central axis direction of the assembly hole;

[0019] A positioning groove recessed inward is provided on the side surface of the first stop portion, and the positioning groove is used for the positioning rib to be inserted into and fix the angle of the terminal body inserted into the assembly hole.

[0020] Preferably, a first correction surface is provided on the side wall of the first stop portion close to the positioning groove;

[0021] A second correction surface is provided on the inner wall of the assembly hole, and the second correction surface and the second correction surface are aligned and fitted to correct the angle at which the terminal body is inserted into the assembly hole.

[0022] Preferably, the terminal assembly component further includes a sealing member, and the sealing member is used to be sleeved in the sealing groove of the terminal body.

[0023] In a second aspect, the present invention provides a charging gun, which includes at least one terminal assembly assembly as described above.

[0024] Preferably, the charging gun further includes:

[0025] A main body shell, wherein the mounting seat is built into the main body shell, and the cable is inserted from the tail end of the main body shell and welded to the terminal body;

[0026] A gun head, one end of which is embedded in the main body shell, and a sealing ring is provided between the main body shell and the gun head.

[0027] Compared with the prior art, the present invention has the following beneficial effects: by providing a mounting seat and providing an assembly hole in the mounting seat, the terminal body is placed in the assembly hole, and its welding end is placed at the back end of the mounting seat. The maximum outer diameter of the welding end is larger than the hole diameter of the assembly hole, so that the welding end cannot pass through the assembly hole, so that the terminal body cannot move after passing through one end position from the back end. After the terminal sub-body passes through the mounting seat, the clamping ring is installed in the clamping groove. The outer diameter of the clamping ring is larger than the hole diameter, so that the terminal body after passing through cannot move to the back end. That is, the terminal body is fixed to the assembly hole by the welding end and the clamping ring, so that the terminal body and the mounting seat are fixedly connected. When the terminal body needs to be replaced or repaired, the clamping ring is removed from the clamping groove to realize the disassembly of the terminal body and the mounting seat, which simplifies the structure of the fixed connection between the terminal body and the mounting seat and greatly improves the speed of maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0030] Figure 1 A schematic structural diagram of the terminal assembly provided in Example 1;

[0031] Figure 2 A schematic structural diagram of the terminal assembly provided in Example 1;

[0032] Figure 3 A schematic structural diagram of the terminal assembly provided in Example 1;

[0033] Figure 4 A schematic structural diagram of a terminal body in a terminal assembly provided in Example 1;

[0034] Figure 5 A schematic structural diagram of a clamping ring in a terminal assembly provided in Example 1;

[0035] Figure 6 A schematic structural diagram of a terminal body in a terminal assembly provided in Example 1;

[0036] Figure 7 A schematic structural diagram of a terminal body in a terminal assembly provided in Example 1;

[0037] Figure 8 A schematic structural diagram of the terminal assembly provided in Example 1;

[0038] Figure 9 A schematic structural diagram of the terminal assembly provided in Example 1;

[0039] Figure 10 A schematic structural diagram of the terminal assembly provided in Example 1;

[0040] Figure 11 for Figure 10 A magnified schematic diagram of the structure at C in the middle;

[0041] Figure 12 A schematic diagram of the structure of the charging gun provided in Example 2;

[0042] Figure 13 A schematic diagram of the structure of the charging gun provided in Example 2;

[0043] Illustration:

[0044] 100. Main body shell; 200. Gun head; 300. Terminal assembly component; 400. Sealing ring; 31. Terminal body; 311. Welding end; 312. Plug end; 313. Snap-fit ​​groove; 314. Air-avoiding groove; 315. Return groove; 316. First stop portion; 317. Positioning groove; 318. First correction surface; 319. Sealing member; 310. Sealing groove; 32. Mounting seat; 321. Assembly hole; 322. Protruding beam; 323. Arc-shaped member; 324. Limiting rib; 325. Second stop portion; 326. Assembly plate; 327. Positioning rib; 328. Second correction surface; 329. Back end; 320. Front end; 321. Fixing hole; 33. Snap ring member; 331. Snap ring protrusion; 332. Abutting end; 333. Snap-fit ​​portion; 11. Connecting portion. DETAILED DESCRIPTION

[0045] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0047] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0048] Example 1

[0049] Please refer to Figure 1 、 Figure 2 and Figure 3 The present invention provides a terminal assembly assembly 300, which includes:

[0050] A terminal body 31, wherein the terminal body 31 is provided with a welding end 311, wherein the welding end 311 is welded to the cable, and the number of the terminal body 31 is at least one;

[0051] A mounting seat 32 , wherein the mounting seat 32 has at least one assembly hole 321 , and the terminal body 31 is placed in the assembly hole 321 and connected to the mounting seat 32 ;

[0052] The terminal body 31 is provided with a snap-fit ​​groove 313 near the welding end 311 , and the snap-fit ​​groove 313 is snap-fitted with a snap ring 33 to fix the terminal body 31 on the mounting seat 32 ;

[0053] The outer diameter of the clamping ring 33 is larger than the diameter of the assembly hole 321 , and the maximum outer diameter of the welding end 311 is larger than the hole diameter.

[0054] Specifically, the terminal body 31 is a component used for electrically connecting the charging gun to the charging device. The terminal body 31 includes a plug-in end 312 and a welding end 311. The plug-in end 312 is used to insert the device to be charged for electrical connection, and the welding end 311 is used to weld and connect with the cable in the charging gun. The mounting base 32 is fixedly installed in the charging gun to provide support for installing the terminal assembly.

[0055] The maximum outer diameter of the welding end 311 is the maximum size of the welding end 311 in any diameter direction of the assembly hole 321 .

[0056] During installation, the cable is first welded to the welding end 311 to achieve a welded connection between the terminal assembly and the cable, and then the plug end 312 is inserted into the assembly hole 321 from the back end 329 of the mounting base 32. Because the maximum outer diameter of the welding end 311 is larger than the diameter of the assembly hole 321, the welding end 311 will not move from the back end 329 to the front end 320 of the mounting base 32. When the welding end 311 abuts against the back end 329 of the mounting base 32, the clamping groove 313 extends from the assembly hole 321 to the front end 320 of the mounting base 32, and the clamping ring 33 is clamped into the clamping groove 313 to secure it. At the same time, because the outer diameter of the clamping ring is larger than the diameter of the assembly hole 321, when the terminal body 31 tends to move from the front end 320 to the back end 329, the clamping ring 33 can abut against the assembly hole 321, preventing the terminal body 31 from moving, so that the terminal body 31 can be fixedly mounted on the mounting base 32.

[0057] In this embodiment, a mounting seat 32 is provided and an assembly hole 321 is provided in the mounting seat 32. The terminal body 31 is placed in the assembly hole 321, and its welding end 311 is placed on the back end 329 of the mounting seat 32. The maximum outer diameter of the welding end 311 is larger than the hole diameter of the assembly hole 321, so that the welding end 311 cannot pass through the assembly hole 321, so that the terminal body 31 cannot move after passing through one end position from the back end 329. After the terminal body 31 passes through the mounting seat 32, the clamping ring 33 is installed in the clamping groove 313. The outer diameter of the clamping ring 33 is larger than the hole diameter, so that the terminal body 31 cannot move to the back end 329 after passing through. That is, the terminal body 31 is fixed to the assembly hole 321 by the welding end 311 and the clamping ring 33, thereby realizing a fixed connection between the terminal body 31 and the mounting seat 32. When the terminal body 31 needs to be replaced or repaired, the clamping ring 33 is removed from the clamping groove 313 to realize the disassembly of the terminal body 31 and the mounting seat 32, which simplifies the structure of the fixed connection between the terminal body 31 and the mounting seat 32 and greatly improves the speed of maintenance and replacement.

[0058] In one embodiment, the snap ring 33 is a closed, elastic ring (not shown), inserted from the plug end 312 and moved downwardly into the snap groove 313 for installation. The inner diameter of the ring-shaped snap member is smaller than the diameter of the snap end, and the outer diameter is larger than the diameter of the assembly hole 321.

[0059] In one embodiment, if Figure 4 As shown, the snap ring 33 has an open ring structure, that is, it is a non-closed ring structure. When installing the snap ring 33 into the snap groove 313, the snap ring 33 is aligned with the snap groove 313 from the opening position of the snap ring 33, and the snap ring 33 is snapped into the snap groove 313 to install the snap ring 33 and the terminal body 31. The outer structure of the snap ring 33 has a diameter corresponding to a larger diameter than the hole diameter.

[0060] In one embodiment, if Figure 4 As shown, a clearance groove 314 is provided at the bottom of the clamping groove 313;

[0061] The clamping ring 33 is provided with a clamping ring protrusion 331 , and the clamping ring protrusion 331 is inserted into the air-avoiding groove 314 to fix the clamping ring 33 on the terminal body 31 .

[0062] Specifically, the snap ring protrusion 331 is a raised structure inside the snap ring and pointing in the circular direction of the snap ring. The snap groove 313 is an annular groove on the terminal body 31 that is recessed toward the center circumference of the terminal body 31. The air-avoidance groove 314 is provided at the bottom of the recessed direction of the snap groove 313, that is, it is recessed toward the central axis in the snap groove 313 to form the air-avoidance groove 314. When the snap ring 33 and the snap groove 313 are sleeved, the snap ring protrusion 331 is pressed into the air-avoidance groove 314. The engagement of the snap ring protrusion 331 with the air-avoidance groove 314 ensures that the snap ring 33 can be firmly fixed to the terminal body 31, preventing it from loosening or falling off during use. At the same time, during disassembly, a small-diameter tool is used to penetrate into the air-avoidance groove 314 and poke outward, thereby picking out the snap ring protrusion 331 from the air-avoidance groove 314, thereby achieving disassembly of the snap ring 33.

[0063] Preferably, when the snap ring 33 is an open ring structure, the snap ring protrusion 331 points to the open structure, that is, the snap ring protrusion 331 is arranged at the middle position inside the open ring structure.

[0064] In one embodiment, if Figure 5 、 Figure 6 and Figure 7 As shown, the clamping ring 33 includes two abutting ends 332 , and the inside of the abutting ends 332 is extended and enlarged inward to form a clamping portion 333 ;

[0065] Two return grooves 315 are formed at the bottom of the clamping groove 313 , and one of the clamping portions 333 is respectively placed in the two return grooves 315 .

[0066] Specifically, when the clamping ring 33 is an open ring structure, the clamping ring 33 includes abutting ends 332 on both sides of the open end, and the inside of the abutting end 332 is extended and enlarged in a straight line and circular direction to form a clamping portion 333. When installing the clamping ring 33, the opening of the clamping ring 33 is aligned with the air avoidance groove 314, and the clamping ring 33 is pushed toward the center axis direction of the terminal body 31, so that the clamping ring 33 is embedded in the clamping groove 313. When the clamping ring protrusion 331 is pressed into the air avoidance groove 314, the two clamping portions 333 are respectively embedded in the return groove 315, thereby realizing the accurate installation of the clamping ring 33 on the terminal body 31.

[0067] This embodiment achieves a secure connection between the clamping ring 33 and the terminal body 31 by providing a snap-fit ​​portion 333 at each of the two abutting ends 332 of the clamping ring 33, as well as two locating grooves 315 at the bottom of the locating groove 313. This design not only simplifies the assembly process and improves assembly efficiency, but also ensures the stability of the terminal body 31 on the mounting plate, thereby improving product reliability and service life. Furthermore, the locating grooves 315 allow the clamping ring 33 to be easily removed using specialized tools or ordinary small-diameter tools, facilitating maintenance and replacement.

[0068] In one embodiment, if Figure 8 and Figure 9 As shown, at least one convex beam 322 is provided at the front end 320 of the mounting seat 32, and one end of the convex beam 322 is connected to an arc-shaped member 323. The arc-shaped member 323 and the convex beam 322 are respectively provided with a limiting rib 324, and the two limiting ribs 324 are respectively in contact with one of the abutting ends 332.

[0069] Specifically, the convex beam 322 is located next to the opening position of the non-closed clamping ring 33 and is connected to an arc-shaped member 323. A limiting rib 324 pointing to the abutting end 332 is respectively provided on the convex beam 322 and the arc-shaped member 323. When the clamping portion 333 is embedded in the return groove 315, a limiting rib 324 and an abutting end 332 abut against each other, and the clamping portion 333 provided inside the abutting end 332 abuts against the return groove 315, thereby preventing the clamping portion 333 from sliding out of the return groove 315.

[0070] In one embodiment, if Figure 6 、 Figure 7 、 Figure 10 as well as Figure 11 As shown, the terminal body 31 is provided with a first stop portion 316 protruding outward away from the central axis of the terminal body 31 near the welding end 311;

[0071] A second stop portion 325 extending toward the center axis of the assembly hole 321 is provided in the assembly hole 321 . The second stop portion 325 is used to abut against the first stop portion 316 to fix the terminal body 31 on the mounting seat 32 .

[0072] Specifically, the side wall of the terminal body 31 extends away from the center axis of the terminal body 31 to form a second stop portion 325, and the first stop portion 316 is arranged between the clamping groove 313 and the welding end 311; during installation, the first stop portion 316 is located in the assembly hole 321, and the second stop portion 325 is arranged in the outlet of the assembly hole 321 at the front end 320 of the mounting seat 32, and the outlet position of the assembly hole 321 extends toward the center axis direction of the assembly hole 321 to form the second stop portion 325. When the clamping groove 313 passes through the assembly hole 321, the first stop portion 316 and the second stop portion 325 abut against each other to prevent the terminal body 31 from continuing to move out of the assembly hole 321.

[0073] In one embodiment, if Figure 10 As shown, a side wall of the assembly hole 321 extends from the back end 329 of the mounting seat 32 in a direction away from the assembly hole 321 to form an assembly plate 326. A positioning rib 327 is provided on a surface of the assembly plate 326 connected to the side wall. The length direction of the positioning rib 327 is parallel to the central axis direction of the assembly hole 321.

[0074] A positioning groove 317 is provided on the side of the first stop portion 316 . The positioning groove 317 is used for the positioning rib 327 to be inserted into and fix the angle at which the terminal body 31 is inserted into the assembly hole 321 .

[0075] Specifically, a plate-shaped assembly plate 326 is provided at the back end 329 of the mounting seat 32. An elongated positioning rib 327 is provided on the assembly plate 326, extending parallel to the length of the central axis of the mounting hole 321. After the terminal body 31 is inserted into the mounting hole 321, the upper end of the positioning groove 317 on the first stop 316 in the direction of movement is aligned with the lower end of the positioning rib 327 at the back end 329 in the direction of movement. Once the positioning rib 327 is inserted into the positioning groove 317, the terminal body 31 and the mounting seat 32 are positioned, preventing the terminal body 31 from rotating within the mounting hole 321.

[0076] In one embodiment, if Figure 7 、 Figure 10 as well as Figure 11 As shown, a first correction surface 318 is provided on the side wall of the first stop portion 316 close to the positioning groove 317;

[0077] A second correction surface 328 is provided on the inner wall of the assembly hole 321 , and the second correction surface 328 is aligned with the second correction surface 328 to correct the angle at which the terminal body 31 is inserted into the assembly hole 321 .

[0078] Specifically, when the terminal body 31 is installed in the assembly hole 321 , whether the first correction surface 318 and the second correction surface 328 are in contact with each other is used to determine whether the insertion angle of the terminal body 31 is correct.

[0079] On the mounting seat 32 , the positioning rib 327 and the second correction surface 328 are respectively arranged below each limiting rib 324 , and on the terminal body 31 , the positioning groove 317 is arranged below one of the return grooves 315 , and the first correction surface 318 is arranged below the other return groove 315 .

[0080] In one embodiment, if Figure 8 and Figure 9 As shown, a plurality of positioning grooves 317 are formed on the first stop portion 316 , and a first correction surface 318 is formed on a sidewall of each positioning groove 317 .

[0081] When the mounting seat 32 is provided with a plurality of assembly holes 321 for mounting a plurality of terminal bodies 31, each assembly hole 321 is provided with a corresponding set of limiting ribs 324, and a plurality of positioning grooves 317 are provided on the first stop portion 316 of the terminal body 31. The positioning grooves 317 are first assembled with the positioning ribs 327 through the limiting ribs 324 corresponding to the assembly holes 321 to be plugged into the terminal body 31.

[0082] Preferably, the mounting seat 32 is provided with two assembly holes 321, and a pair of convex beams 322 are provided at the front end 320 of the mounting seat 32, each convex beam 322 is connected to one of the arc-shaped parts 323, and a limiting rib 324 is respectively provided on each convex beam 322 and each arc-shaped part 323. According to the position of the limiting rib 324, a positioning rib 327 and a second correction surface 328 are provided at the back end 329 of the mounting seat 32 in the direction of the central axis of the assembly hole 321. The positioning rib 327 is provided under one limiting rib 324, and the second correction surface 328 is provided under the other limiting rib 324.

[0083] Correspondingly, two positioning grooves 317 are provided on the first stop portion 316 of the terminal body 31, and a first correction surface 318 is provided on the side wall of each positioning groove 317. When installing the terminal body 31, the positioning rib 327 on the mounting seat 32 is assembled with one of the positioning grooves 317, and the first correction surface 318 and the second correction surface 328 on the side wall of the other positioning groove 317 are fitted together. After the terminal body 31 passes through the assembly hole 321, the two clearance grooves 314 provided in its snap-fitting groove 313 respectively correspond to the two limiting ribs 324 corresponding to the assembly hole 321. When the clamping ring 33 is installed in the snap-fitting groove 313, its two snap-fitting ends can accurately abut against a limiting rib 324.

[0084] This embodiment meets the demand for higher current carrying capacity in the charging gun by providing multiple terminal bodies 31 and mounting bases 32 for mounting the multiple terminal bodies 31, while overcoming the structural limitations of existing charging guns that achieve high current carrying capacity by simply increasing the conductor cross-sectional area.

[0085] In one embodiment, if Figure 2 As shown, the terminal assembly component 300 further includes a sealing member 319 , which is used to be sleeved in the sealing groove 310 of the terminal body 31 .

[0086] Specifically, the sealing groove 310 is arranged on the side of the clamping groove 313 away from the welding end 311, and the sealing member 319 is used to prevent pollutants from the external environment from entering the charging gun when the plug-in end 312 of the terminal body 31 and the plug-in member on the front gun head 200 are socketed.

[0087] In one embodiment, if Figure 3 As shown, the mounting base 32 is provided with a plurality of fixing holes 321, and the fixing holes 321 are used to fix the mounting base 32 in the charging gun through fixing parts to prevent the mounting base 32 from shaking and affecting the electrical connection of the terminal body 31 to the device to be charged.

[0088] Example 2

[0089] Please refer to Figure 12 and Figure 13 Based on the terminal assembly component 300 described in the above-mentioned embodiment 1, this embodiment provides a charging gun, which includes at least one terminal assembly component 300 described in any one embodiment 1.

[0090] The charging gun provided in this embodiment has the terminal assembly component 300 built in. The terminal assembly component 300 is provided by providing a mounting seat 32 and providing an assembly hole 321 in the mounting seat 32. The terminal body 31 is placed in the assembly hole 321, and its welding end 311 is placed at the back end 329 of the mounting seat 32. The maximum outer diameter of the welding end 311 is larger than the hole diameter of the assembly hole 321, so that the welding end 311 cannot pass through the assembly hole 321, so that the terminal body 31 cannot move after passing through one end position from the back end 329. After the terminal body 31 passes through the mounting seat 32, the clamping ring 33 is installed in the clamping groove 313. The outer diameter of the clamping ring 33 is larger than the hole diameter, so that the terminal body 31 cannot move to the back end 329 after passing through. That is, the terminal body 31 is fixed to the assembly hole 321 by the welding end 311 and the clamping ring 33, thereby realizing a fixed connection between the terminal body 31 and the mounting seat 32. When the terminal body 31 needs to be replaced or repaired, the clamping ring 33 is removed from the clamping groove 313 to realize the disassembly of the terminal body 31 and the mounting seat 32, which simplifies the structure of the fixed connection between the terminal body 31 and the mounting seat 32 and greatly improves the speed of maintenance and replacement.

[0091] In one embodiment, if Figure 12 and Figure 13 As shown, the charging gun also includes:

[0092] The main body shell, the mounting seat 32 is built into the main body shell, and the cable is inserted from the tail end of the main body shell and welded to the terminal body 31;

[0093] The gun head 200 has one end embedded in the main body shell, and a sealing ring 400 is provided between the main body shell 100 and the gun head 200 .

[0094] Specifically, a plurality of connecting parts 11 for connecting to the mounting seat 32 are provided in the main housing (charging gun housing). The connecting parts 11 and the fixing holes 321 of the mounting seat 32 are connected by fixing parts to stably fix the mounting seat 32 in the main housing.

[0095] The main body shell is mounted on the mounting base 32 from the back end 329 of the mounting base 32 , and the gun head 200 is mounted on the mounting base 32 from the front end 320 of the mounting base 32 .

[0096] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A terminal assembly component (300), characterized in that: The terminal assembly component (300) comprises: A terminal body (31), the terminal body (31) being provided with a welding end (311), the welding end (311) being welded to the cable, and the number of the terminal body (31) being at least one; A mounting seat (32), the mounting seat (32) being provided with at least one assembly hole (321), the terminal body (31) being placed in the assembly hole (321) and connected to the mounting seat (32); The terminal body (31) is provided with a snap-fit ​​groove (313) near the welding end (311), and the snap-fit ​​groove (313) is snap-fitted with a snap ring (33) to fix the terminal body (31) on the mounting seat (32); The outer diameter of the clamping ring (33) is larger than the hole diameter of the assembly hole (321), and the maximum outer diameter of the welding end (311) is larger than the hole diameter.

2. The terminal assembly (300) according to claim 1, characterized in that: A clearance groove (314) is provided at the bottom of the clamping groove (313); The clamping ring (33) is provided with a clamping ring protrusion (331), and the clamping ring protrusion (331) is inserted into the air-avoiding groove (314) to fix the clamping ring (33) on the terminal body (31).

3. The terminal assembly (300) according to claim 2, characterized in that: The clamping ring (33) comprises two abutting ends (332), and the insides of the abutting ends (332) extend inward and expand to form a clamping portion (333); Two return grooves (315) are provided at the bottom of the clamping groove (313), and one of the clamping parts (333) is respectively placed in the two return grooves (315).

4. The terminal assembly (300) according to claim 3, characterized in that: At least one convex beam (322) is provided at the front end (320) of the mounting seat (32), one end of the convex beam (322) is connected to an arc-shaped member (323), the arc-shaped member (323) and the convex beam (322) are respectively provided with a limiting rib (324), and the two limiting ribs (324) are respectively in contact with one of the abutting ends (332).

5. The terminal assembly according to any one of claims 1 to 4, characterized in that: The terminal body (31) is provided with a first stop portion (316) protruding outwardly away from the central axis of the terminal body (31) near the welding end (311); A second stop portion (325) extending in a direction close to the central axis of the assembly hole (321) is provided in the assembly hole (321). The second stop portion (325) is used to abut against the first stop portion (316) to fix the terminal body (31) on the mounting seat (32).

6. The terminal assembly (300) according to claim 5, characterized in that: A side wall of the assembly hole (321) extends from the back end (329) of the mounting seat (32) in a direction away from the assembly hole (321) to form an assembly plate (326); a side of the assembly plate (326) connected to the side wall is provided with a positioning rib (327); the length direction of the positioning rib (327) is parallel to the central axis direction of the assembly hole (321); An inwardly recessed positioning groove (317) is provided on the side of the first stop portion (316), and the positioning groove (317) is used for the positioning rib (327) to be inserted into and fix the angle of the terminal body (31) when inserted into the assembly hole (321).

7. The terminal assembly (300) according to claim 6, characterized in that: A first correction surface (318) is provided on a side wall of the first stop portion (316) close to the positioning groove (317); A second correction surface (328) is provided on the inner wall of the assembly hole (321), and the second correction surface (328) and the second correction surface (328) are aligned and fitted to correct the angle of the terminal body (31) when inserted into the assembly hole (321).

8. The terminal assembly (300) according to claim 7, characterized in that: The terminal assembly component (300) further includes a sealing member (319), wherein the sealing member (319) is used to be sleeved in the sealing groove (310) of the terminal body (31).

9. A charging gun, characterized in that: The charging gun comprises a terminal assembly (300) according to any one of claims 1 to 8 above; The charging gun further includes: A main body shell, the mounting seat (32) is built into the main body shell, and the cable is inserted from the tail end of the main body shell and welded to the terminal body (31); A gun head (200), one end of which is embedded in the main body shell, and a sealing ring (400) is provided between the main body shell (100) and the gun head (200).

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