Charging gun tail structure and alternating current charging gun

Abstract

The utility model relates to the technical field of charging guns, in particular to a tail structure of a charging gun and an alternating current charging gun. The charging gun tail structure comprises a gun tail shell, the inner side of the gun tail shell is connected with a clamping piece, a cable sheath and a waterproof ring, and a charging gun wire penetrates through the gun tail shell. The cable sheath fixing ring is arranged outside the charging gun line, the clamping piece is sleeved outside the cable sheath, the gun tail shell is sleeved outside the clamping piece, an upper port of the gun tail shell is connected with the charging gun shell, a lower port of the gun tail shell is connected with the clamping piece in a buckling manner, and the waterproof ring is annularly arranged between the gun tail shell and the charging gun line and is in interference fit with the gun tail shell and the charging gun line. At least two clamping blocks are annularly arranged on the outer side face of the clamping piece, clamping grooves are annularly formed in the inner side face of the gun tail shell, and the clamping blocks correspond to the clamping grooves in a one-to-one mode and are connected with the clamping grooves in a buckled mode. The charging gun tail structure can effectively solve the technical problems that an existing charging gun tail is poor in sealing stability, easy to loosen, incapable of being rapidly assembled and high in assembling cost.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns, in particular to a charging gun tail structure and an AC charging gun. Background Art

[0002] With the increasing popularity of new energy electric vehicles, the development of new energy vehicle charging technology is also accelerating. New energy charging guns are used to charge new energy electric vehicles and provide energy for them. In the current common charging gun structure, the connection between the rear shell of the charging gun and the charging gun cable is often sealed and waterproofed by threading it into a waterproof sleeve or by fixing the connecting sleeve and the shell with screws. However, this conventional method of fixing the rear end of the charging gun has poor sealing stability, and the rear end of the charging gun is prone to loosening, affecting the safety performance of the charging gun. In addition, the installation method is cumbersome, the assembly of the charging gun is time-consuming, and the cost is high. Utility Model Content

[0003] In response to the shortcomings in the existing technology, the purpose of the present utility model is to provide a charging gun tail structure and an AC charging gun, which can effectively solve the technical problems of the existing charging gun tail, such as poor sealing stability, easy loosening, inability to assemble quickly, and high assembly cost.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0005] One technical solution of the present invention provides a charging gun tail structure, including a gun tail housing. The gun tail housing is a cylindrical structure with two open ends and a hollow interior. A clamp, a cable sheath, and a waterproof ring are connected to the inner side of the gun tail housing. A charging gun cable is passed through the gun tail housing to connect the electronic components inside the charging gun and an external power supply.

[0006] The cable sheath ring is arranged on the outside of the charging gun wire and is fixedly connected to it. The clamp is sleeved on the outside of the cable sheath. The gun tail shell is sleeved on the outside of the clamp. The upper end of the gun tail shell is connected to the charging gun shell. The lower end of the gun tail shell is snap-connected to the clamp. The waterproof ring is arranged between the gun tail shell and the charging gun wire and forms an interference fit with both the gun tail shell and the charging gun wire.

[0007] At least two outwardly protruding blocks are arranged on the outer side of the clamp, and a slot matching the shape of the blocks is arranged on the inner side of the gun tail shell. The blocks correspond to the slots one by one and are snap-connected.

[0008] By adopting the above technical solution, the charging gun wire is fixedly connected to the cable sheath, and the gun tail shell and the clamp are quickly snap-connected by setting mutually cooperating clamps and slots, avoiding the use of screws for multiple fixations, saving time and effort; the gun tail shell can be quickly installed and fixedly connected to the charging gun wire through the clamp and cable sheath, and the connection sealing between the gun tail shell and the charging gun wire is improved by setting a waterproof ring, thereby improving the waterproof effect.

[0009] Furthermore, the clamp comprises a first clamp and a second clamp, both of which are semicircular and buckled together to be sleeved over the exterior of the cable sheath and fixedly connected thereto. Each of the first and second clamps has at least one clamping block on its outer curved surface. The clamp utilizes a detachable, half-and-half structure for easy removal and installation. The breech housing is provided with at least two clamping slots that engage with the clamping blocks on the first and second clamps, respectively, thereby securing the breech housing to the clamp.

[0010] Furthermore, the first clamp has two end faces provided with insertion holes, and the second clamp has two end faces provided with insertion posts. When the first clamp and the second clamp are joined together, the insertion posts are inserted into the insertion holes. By inserting the insertion posts into the insertion holes, the first clamp and the second clamp can be quickly connected, avoiding misalignment of the connection position.

[0011] Furthermore, at least two limiting pins are provided on the inner curved surfaces of each of the first and second clamps, and limiting holes are defined in the cable sheath, into which the limiting pins are inserted. The first and second clamps are sheathed onto the cable sheath from both sides and joined together. The limiting pins engage with the limiting holes to securely connect the first and second clamps to the cable sheath, defining their respective installation positions on the cable sheath and preventing the clamps from shifting during axial insertion and removal of the gun breech block housing for a snap-on connection.

[0012] Furthermore, the first and second clamps each have an arc-shaped hollow groove formed therein, the sidewalls of the hollow groove being connected to the clamping block, and movable notches communicating with the hollow grooves are formed on both sides of the clamping block. When the gun tail housing is snap-fitted to the clamping member, the clamping block is squeezed inwardly along the clamping member's radial direction. The movable notches facilitate partial inward elastic deformation of the clamping block, and the hollow grooves provide a certain amount of displacement space for the clamping block, achieving a snap-fit ​​connection with the clamping grooves under the elastic action of the clamping block material.

[0013] Furthermore, a clamping ring is provided on the outer sleeve of the charging gun wire, which is located between the gun tail shell and the charging gun wire, and the waterproof ring is located between the clamping ring and the cable sheath. The clamping ring plays a limiting role. When the gun tail shell is sleeved on the charging gun wire and is connected with the clamp part, it prevents the waterproof ring from sliding and dislocating on the charging gun wire, and cannot form an interference fit with both the gun tail shell and the charging gun wire.

[0014] Furthermore, the cable sheath is integrally formed with the charging gun line, and the outer ring of the cable sheath is provided with a groove, which is located outside the gun tail shell, and the groove is used to connect the elastic rope on the gun head dust cover.

[0015] The present utility model also provides an AC charging gun, comprising a charging gun housing, a charging gun head, a charging gun tail, a gun head dust cover, and a control switch and electronic components arranged inside the charging gun housing and connected to the charging gun wire. The charging gun tail adopts the charging gun tail structure as described in any one of claims 1 to 4, so as to seal and fix the gun tail housing and the charging gun wire.

[0016] The utility model has the following beneficial effects:

[0017] The tail structure of the charging gun provided by the utility model cooperates with the gun tail shell and the cable sheath through a clamp, and can achieve a quick fixed connection through a snap connection. The waterproof sealing performance between the gun tail shell and the charging gun wire is improved by setting a waterproof ring. The assembly of the charging gun tail structure is simple and time-saving, which can improve the stability of the connection between the gun tail shell and the charging gun wire, prevent it from loosening, and improve the service life and safety performance of the charging gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a three-dimensional schematic diagram of a partial cross-section of a charging gun including the tail fixing structure of the utility model;

[0020] Figure 2 This is a plan view of the internal cross-section of the tail structure of the charging gun in the present invention;

[0021] Figure 3 This is an exploded view of the structure of the tail portion of the charging gun in the present invention;

[0022] Figure 4 It is a structural diagram of the clamp in the utility model;

[0023] Figure 5 This is a schematic structural diagram of the gun tail housing in the utility model;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the charging gun including the tail fixing structure of the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Gun tail shell; 11. Slot; 2. Clamp; 21. Block; 22. First clamp; 221. Plug hole; 23. Second clamp; 231. Plug column; 24. Limit pin; 25. Hollow groove; 26. Movable notch; 3. Cable sheath; 31. Limit hole; 32. Groove; 4. Waterproof ring; 5. Charging gun line; 6. Snap ring; 100. Charging gun shell; 200. Charging gun head; 300. Charging gun tail; 400. Gun head dust cover. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand the other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of the present invention are limited to the embodiment.

[0028] In the description of this embodiment, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "front", "back", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to has a specific orientation, is constructed and operates in a specific orientation. Therefore, they should not be understood as limiting the utility model. The terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0029] In the description of this embodiment, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on their specific circumstances.

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0031] refer to Figures 1 to 3In one embodiment of the present invention, a charging gun tail structure is provided, including a gun tail shell 1. The gun tail shell 1 is a cylindrical structure with two ends open and an inner hollow. A clamp 2, a cable sheath 3 and a waterproof ring 4 are connected to the inner side of the gun tail shell 1. A charging gun wire 5 is passed through the gun tail shell 1 to connect the internal electronic components of the charging gun and the external power supply. Figure 1 The cable sheath 3 is integrally formed around the exterior of the charging gun cable 5 and fixedly connected thereto. The clamp 2 is clamped around the exterior of the cable sheath 3, and the gun base housing 1 is sleeved around the exterior of the clamp 2. The upper end of the gun base housing 1 is connected to the charging gun housing 100, and the lower end of the gun base housing 1 is snap-connected to the clamp 2. A waterproof ring 4 is disposed between the gun base housing 1 and the charging gun cable 5, forming an interference fit with both the gun base housing 1 and the charging gun cable 5 to improve the sealing between the gun base housing 1 and the charging gun cable 5 and enhance the waterproofing effect. The outer surface of the clamp 2 is provided with at least two outwardly protruding blocks 21. The inner surface of the gun base housing 1 is provided with a slot 11 that matches the shape of the blocks 21. The blocks 21 correspond to the slots 11 one-to-one and snap-connect to each other, thereby achieving a connection between the gun base housing 1 and the cable sheath 3 and the charging gun cable 5.

[0032] The charging gun tail structure provided in this embodiment has a fixed connection between the charging gun wire 5 and the cable sheath 3. By providing a mutually cooperating clamping block 21 and a clamping slot 11, a quick snap-on connection between the gun tail housing 1 and the clamping member 2 is achieved, avoiding the use of screws for fixing in multiple places, saving time and effort; the gun tail housing 1 can be quickly installed and fixedly connected to the charging gun wire 5 through the clamping member 2 and the cable sheath 3, and the waterproof ring 4 is provided to improve the sealing of the connection between the gun tail housing 1 and the charging gun wire 5, thereby improving the waterproof effect.

[0033] refer to Figure 2 and Figure 4In this embodiment, the clamp 2 comprises a first clamp 22 and a second clamp 23, both of which are semicircular in shape. They can be mated and snapped together, fitted over the exterior of the cable sheath 3 and securely connected to it. Two outwardly protruding blocks 21 are located on the outer curved surfaces of each clamp 22 and clamp 23. The clamp 2 utilizes a detachable, half-and-half structure for easy removal and installation. Two slots 11 are provided on the breech housing 1, which engage with the blocks 21 on the first and second clamps 22 and 23, respectively, to securely connect the breech housing 1 to the clamp 2. The first clamp 22 has two end surfaces with insertion holes 221, while the second clamp 23 has two end surfaces with insertion posts 231. When the first and second clamps 22 and 23 are joined, the insertion posts 231 are inserted into the insertion holes 221. By plugging the plug post 231 into the plug hole 221 , the connection between the first clamp 22 and the second clamp 23 can be quickly completed, avoiding misalignment of the connection position.

[0034] refer to Figures 2 to 4 In this embodiment, two limiting pins 24 are provided on the inner curved surfaces of the first clamp 22 and the second clamp 23, and limiting holes 31 are provided on the cable sheath 3. The limiting pins 24 are inserted into the limiting holes 31 to connect the clamp 2 to the cable sheath 3. The first clamp 22 and the second clamp 23 are sheathed on the cable sheath 3 from both sides and connected together. The limiting pins 24 are plugged into the limiting holes 31 to fix the first clamp 22 and the second clamp 23 to the cable sheath 3 respectively, defining the installation position on the cable sheath 3 and preventing the clamp 2 from shifting when the gun breech housing 1 is axially inserted and removed for snap connection.

[0035] refer to Figure 2 and Figure 4 In this embodiment, arc-shaped hollow slots 25 are defined within the first and second clamps 22, 23, reducing material usage. The sidewalls of the hollow slots 25 are connected to the clamping block 21, and movable notches 26 communicating with the hollow slots 25 are defined on either side of the clamping block 21. When the breech block housing 1 is snap-fitted to the clamping member 2, the clamping block 21 is squeezed inwardly along the radial direction of the clamping member 2. The movable notches 26 facilitate the partial inward elastic deformation of the clamping block 21. The hollow slots 25 provide sufficient displacement space for the clamping block 21, allowing the elasticity of the material of the clamping block 21 to achieve a snap-fit ​​connection with the clamping slot 11.

[0036] refer to Figure 2 and Figure 3In another embodiment of the present invention, a retaining ring 6 is provided on the exterior of the charging gun cable 5. This retaining ring 6 is positioned between the gun base housing 1 and the charging gun cable 5, and the waterproof ring 4 is positioned between the retaining ring 6 and the cable sheath 3. The retaining ring 6 acts as a position limiter. When the gun base housing 1 is fitted over the charging gun cable 5 and snap-fitted with the clamp 2, the waterproof ring 4 is prevented from sliding or dislocating on the charging gun cable 5, preventing it from forming an interference fit with both the gun base housing 1 and the charging gun cable 5.

[0037] refer to Figure 3 and Figure 6 In another embodiment of the present invention, the cable sheath 3 and the charging gun line 5 are integrally formed, and the outer ring of the cable sheath 3 is provided with a groove 32, which is located outside the gun tail shell 1, and the groove 32 is used to connect the elastic rope on the gun head dust cover 400.

[0038] refer to Figure 1 and Figure 6 Another embodiment of the present invention further provides an AC charging gun, including a charging gun housing 100, a charging gun head 200, a charging gun tail 300, a gun head dust cover 400, and a control switch and electronic components arranged inside the charging gun housing 100 and connected to the charging gun line 5. The charging gun tail 300 adopts the charging gun tail structure of the above embodiment, which is used to seal and fix the gun tail housing 1 and the charging gun line 5.

[0039] Although the preferred embodiments of the present invention have been disclosed above, they are not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solutions of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A charging gun tail structure, characterized in that: The invention comprises a gun tail shell (1), the gun tail shell (1) is a cylindrical structure with two ends open and an interior hollow, a clamp (2), a cable sheath (3) and a waterproof ring (4) are connected to the inner side of the gun tail shell (1), and a charging gun wire (5) is passed through the gun tail shell (1); The cable sheath (3) is arranged around the outside of the charging gun line (5) and is fixedly connected thereto; the clamp (2) is sleeved around the outside of the cable sheath (3); the gun tail shell (1) is sleeved around the outside of the clamp (2); the upper end of the gun tail shell (1) is connected to the charging gun shell (100); the lower end of the gun tail shell (1) is snap-connected to the clamp (2); the waterproof ring (4) is arranged between the gun tail shell (1) and the charging gun line (5) and forms an interference fit with the gun tail shell (1) and the charging gun line (5); At least two outwardly protruding clamping blocks (21) are provided on the outer side of the clamping member (2), and a clamping groove (11) matching the shape of the clamping blocks (21) is provided on the inner side of the gun tail housing (1). The clamping blocks (21) and the clamping grooves (11) correspond to each other one by one and are connected by snapping.

2. The charging gun tail structure according to claim 1, characterized in that: The clamping member (2) comprises a first clamping member (22) and a second clamping member (23), both of which are semicircular in shape. The first clamping member (22) and the second clamping member (23) are buckled together, sleeved on the outside of the cable sheath (3), and fixedly connected to the cable sheath (3); at least one clamping block (21) is provided on the outer arc surface of each of the first clamping member (22) and the second clamping member (23).

3. The charging gun tail structure according to claim 2, characterized in that: The first clamp (22) is provided with plug holes (221) on its two end surfaces, and the second clamp (23) is provided with plug posts (231) on its two end surfaces. When the first clamp (22) and the second clamp (23) are spliced ​​and connected, the plug posts (231) are inserted into the plug holes (221).

4. The charging gun tail structure according to claim 2, characterized in that: At least two limiting pins (24) are provided on the inner arc surfaces of the first clamp (22) and the second clamp (23), and a limiting hole (31) is provided on the cable sheath (3), and the limiting pins (24) are inserted into the limiting hole (31).

5. The charging gun tail structure according to claim 2, characterized in that: An arc-shaped hollow groove (25) is provided in the first clamp (22) and the second clamp (23), the side walls of the hollow groove (25) are connected to the clamping block (21), and movable notches (26) communicating with the hollow groove (25) are provided on both sides of the clamping block (21).

6. The charging gun tail structure according to claim 1, characterized in that: The outer sleeve of the charging gun wire (5) is provided with a clamping ring (6), the clamping ring (6) is located between the gun tail shell (1) and the charging gun wire (5), and the waterproof ring (4) is located between the clamping ring (6) and the cable sheath (3).

7. The charging gun tail structure according to claim 1, characterized in that: The cable sheath (3) and the charging gun wire (5) are integrally formed, and the outer ring of the cable sheath (3) is provided with a groove (32), and the groove (32) is located outside the gun tail housing (1).

8. An AC charging gun, characterized in that: The invention comprises a charging gun housing (100), a charging gun head (200), a charging gun tail (300), a gun head dust cover (400), and a control switch provided inside the charging gun housing (100) and connected to the charging gun line (5); the charging gun tail (300) adopts the charging gun tail structure as described in any one of claims 1 to 7, and is used to seal and fix the gun tail housing (1) and the charging gun line (5).

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