Integrated charging elastic sheet structure and charging gun

Abstract

The utility model discloses an integrated charging elastic sheet structure and a charging gun, and the integrated charging elastic sheet structure comprises a riveting plate and two groups of bayonet sockets which are respectively and integrally connected with the front side end and the rear side end of the riveting plate. The riveting plate is provided with a riveting hole which is through up and down, and the riveting hole penetrates through the upper end face and the lower end face of the riveting plate. The bayonet socket comprises a vertical connecting plate, a horizontal annular plate and two lateral arc-shaped plates, the lower end of the vertical connecting plate is integrally connected to the corresponding front side end and the corresponding rear side end of the riveting plate, and the horizontal annular plate integrally and horizontally extends from the upper end of the vertical connecting plate. The horizontal annular plate is provided with a vertically-through inserting hole, the lateral arc-shaped plates integrally extend backwards from the corresponding left end and the corresponding side end of the vertical connecting plate, and an inserting cavity right facing the lower portion of the inserting hole is defined by the two lateral arc-shaped plates. The elastic sheet is ingenious in structural design, easy to produce and manufacture, durable and long in service life.

Description

Technical Field

[0001] This utility model relates to the field of charging gun technology, and in particular to an integrated charging spring structure and a charging gun. Background Technology

[0002] Currently, with the development of new energy vehicles, charging guns are widely used. A typical charging gun includes a charging head, one end of which has a wire, and the other end has a terminal hole with a terminal assembly on the inner wall of the terminal hole. The charging head is used to connect to a charging socket.

[0003] The charging terminal typically uses a ring spring inside the socket. For example, CN218849884U discloses a charging gun terminal connection structure, including: a plug-in fixing base, a plug-in base, and a power plug-in terminal; the plug-in fixing base is equipped with multiple evenly distributed first fixing buckles; the plug-in base is installed on the plug-in fixing base and is used to protect the functional terminal from damage; the power plug-in terminal is inserted into the plug-in fixing base, the power plug-in terminal has a socket, a ring spring is installed inside the socket, a slot is cut into the power plug-in terminal, a pair of sealing grooves are cut into the power plug-in terminal, a sealing ring is provided in the sealing groove, and a contact end is fixedly connected to one end of the power plug-in terminal.

[0004] However, this type of charging terminal structure is quite troublesome to manufacture, especially to install.

[0005] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide an integrated charging spring structure and charging gun, which has an ingenious spring structure design, is easy to manufacture, and has a long service life.

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

[0008] An integrated charging spring structure includes a riveting plate and two sets of plug sockets integrally connected to the front and rear ends of the riveting plate, respectively.

[0009] The riveting plate is provided with a through riveting hole that passes through the upper and lower end faces of the riveting plate.

[0010] The connector includes a vertical connecting plate, a horizontal annular plate, and two lateral arc-shaped plates. The lower end of the vertical connecting plate is integrally connected to the corresponding front and rear ends of the riveting plate. The horizontal annular plate extends horizontally from the upper end of the vertical connecting plate. The horizontal annular plate has a vertically penetrating insertion hole. The lateral arc-shaped plates extend rearward from the corresponding left and right ends of the vertical connecting plate. The two lateral arc-shaped plates form an insertion cavity directly below the insertion hole.

[0011] As a preferred embodiment, the other end of the horizontal annular plate opposite to the upper end of the vertical connecting plate is also connected to an extension foot. The extension foot extends downward integrally from the other end of the horizontal annular plate, and the extension foot maintains a distance from the lateral arc plate.

[0012] As a preferred embodiment, the extension foot and the vertical connecting plate are arranged on opposite sides.

[0013] As a preferred embodiment, the corresponding left and right ends of the vertical connecting plate are integrally provided with inclined plates extending backward, and the lateral arc plate is integrally connected to the extended end of the inclined plate.

[0014] As a preferred embodiment, the lateral arc-shaped plate includes an arc-shaped main plate, an upper arc-shaped support plate, and a lower arc-shaped support plate. The arc-shaped main plate is integrally connected to the extended end of the inclined plate and extends arc-shaped towards the side where the extended foot is located. The upper arc-shaped support plate is located above the inclined plate and extends arc-shaped from the end of the arc-shaped main plate away from the extended foot towards the side where the vertical connecting plate is located. The lower arc-shaped support plate is located below the inclined plate and extends arc-shaped from the end of the arc-shaped main plate away from the extended foot towards the side where the vertical connecting plate is located.

[0015] As a preferred embodiment, the lower end of the extended foot extends beyond the lower ends of the two lateral curved plates.

[0016] As a preferred embodiment, the inclined plates at the left and right ends extend from the vertical connecting plate toward the extending foot and are arranged close to each other.

[0017] A charging gun includes a charging gun body, on which an integrated charging spring structure as described in any of the preceding claims is provided.

[0018] As a preferred embodiment, the charging gun body includes a plastic housing and a terminal plastic base;

[0019] The integrated charging spring structure is riveted with a first terminal post, which is embedded in the terminal plastic base, with the lower end of the first terminal post extending out of the lower end of the terminal plastic base. The insertion cavities of the two sets of plug-in sockets are exposed on the top of the terminal plastic base. The terminal plastic base is also embedded with a second terminal post and a third terminal post, with the lower ends of the second terminal post and the third terminal post both extending out of the lower end of the terminal plastic base. The upper end of the second terminal post is connected to a first plug-in post extending out of the top of the terminal plastic base, and the upper end of the third terminal post is connected to a second plug-in post extending out of the top of the terminal plastic base.

[0020] As a preferred embodiment, the left and right sides of the first plug-in post and the second plug-in post are spaced apart, and the front and rear sides of the two plug-in cavities are spaced apart.

[0021] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly involves designing a riveting plate and two sets of insertion seats integrally connected to the front and rear ends of the riveting plate. The insertion seat includes a vertical connecting plate, a horizontal annular plate, and two lateral arc-shaped plates. The horizontal annular plate has a vertically penetrating insertion hole, and the lateral arc-shaped plates form an insertion cavity directly below the insertion hole. This spring sheet structure is ingeniously designed and can be integrally stamped and bent on a metal strip, making it easy to manufacture. Moreover, the combination design of closed insertion hole and elastic insertion cavity provides good structural strength, improves the problem of elastic fatigue damage to the insertion cavity caused by repeated insertion and removal, and enhances the reliability and durability of the insertion.

[0022] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a diagram illustrating the strip connection of an integrated charging spring structure according to an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the integrated charging spring structure and material strip according to an embodiment of the present utility model;

[0025] Figure 3 This is another connection diagram of the integrated charging spring structure of the present invention.

[0026] Figure 4 This is another exploded view of the integrated charging spring structure and material strip according to an embodiment of the present utility model;

[0027] Figure 5 This is a perspective view of an embodiment of the integrated charging spring structure of this utility model;

[0028] Figure 6 This is another perspective view of the integrated charging spring structure according to an embodiment of the present utility model;

[0029] Figure 7 This is a perspective view of a charging gun according to an embodiment of the present utility model;

[0030] Figure 8 This is an exploded view of a charging gun according to an embodiment of the present invention;

[0031] Figure 9 This is a perspective view of the terminal assembly of a charging gun according to an embodiment of the present utility model;

[0032] Figure 10 This is an exploded view of the terminal assembly of the charging gun according to an embodiment of the present invention. Detailed Implementation

[0033] Please refer to Figures 1 to 10 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0034] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0035] An integrated charging spring structure 100 includes a riveting plate 10 stamped from the same metal plate and two sets of plug sockets 20 integrally connected to two pairs of side ends (e.g., front and rear side ends) of the riveting plate 10.

[0036] The riveting plate 10 is provided with a vertically penetrating riveting hole 11, which penetrates the upper and lower end faces of the riveting plate 10. The lower opening of the riveting hole 11 is designed to gradually increase upwards, forming a guide end, which facilitates the insertion of the corresponding terminal into the riveting hole 11 from the lower opening. The left and right ends of the riveting plate 10 are each reserved with two material cutting notches 12 spaced apart. The material cutting notches 12 are located between the two material cutting notches 12, which makes the removal of the material strip easier and less likely to leave burrs.

[0037] The connector 20 includes a vertical connecting plate 21, a horizontal annular plate 22, and two lateral arc-shaped plates 23. The lower end of the vertical connecting plate 21 is integrally connected to the corresponding front and rear ends of the riveting plate 10. The horizontal annular plate 22 extends horizontally from the upper end of the vertical connecting plate 21 and has a vertically penetrating insertion hole 221. The lateral arc-shaped plates 23 extend rearward from the corresponding left and right ends of the vertical connecting plate 21. The two lateral arc-shaped plates 23 form a double insertion cavity 231 directly below the insertion hole 221. 31 helps ensure reliable connection, avoids poor contact, and facilitates high-current fast charging. For each set of connectors 20, the horizontal annular plate 22 and the two lateral arc-shaped plates 23 use the vertical connecting plate 21 as the same connection reference position, which can effectively control the position of the horizontal annular plate 22 and the lateral arc-shaped plates 23. Correspondingly, it can effectively control the positional accuracy of the connector hole 221 and the connector cavity 231. For the two sets of connectors 20, their respective vertical connecting plates 21 are integrally connected to the same riveting plate 10, making it easy to control the bending processing accuracy. The two sets of connectors 20 set on opposite sides have good balance. The other end of the horizontal annular plate 22 opposite to the upper end of the vertical connecting plate 21 is also connected to an extension foot 24. The extension foot 24 extends downward integrally from the other end of the horizontal annular plate 22, and the lower end of the extension foot 24 extends beyond the lower end of the two lateral arc-shaped plates 23. The extension foot 24 maintains a distance from the lateral arc-shaped plates 23. The extension foot 24 and the vertical connecting plate 21 are arranged opposite each other. The extension foot 24 further improves the structural strength and overall deformation resistance of each set of plug-in seats 20. The vertical connecting plate 21, the extension foot 24, and the horizontal annular plate 22 connecting their tops form an inverted U-shaped frame, which is stable and reliable. The corresponding left and right ends of the vertical connecting plate 21 are integrally provided with inclined plates 25 extending backward. The inclined plates 25 at the left and right ends extend from the vertical connecting plate 21 toward the extension foot 24 and are close to each other. The lateral arc plate 23 is integrally connected to the extended end of the inclined plate 25.The lateral arc-shaped plate 23 includes an arc-shaped main plate 2301, an upper arc-shaped support plate 2302, and a lower arc-shaped support plate 2303. The arc-shaped main plate 2301 is integrally connected to the extended end of the inclined plate 25 and extends arc-shaped towards the side where the extension foot 24 is located. The upper arc-shaped support plate 2302 is located above the inclined plate 25 and extends arc-shaped from the end of the arc-shaped main plate 2301 away from the extension foot 24 towards the side where the vertical connecting plate 21 is located. The lower arc-shaped support plate 2303 is located below the inclined plate 25 and extends arc-shaped from the end of the arc-shaped main plate 2301 away from the extension foot 24 towards the side where the vertical connecting plate 21 is located. The end of the arc-shaped main plate 2301 away from the extension foot 24 extends arc-shaped toward the side where the vertical connecting plate 21 is located. Thus, the upper part of the arc-shaped main plate 2301 and the upper arc-shaped support plate 2302 form an upper arc plate 1 that is roughly semi-circular, and the lower part of the arc-shaped main plate 2301 and the lower arc-shaped support plate 2303 form a lower arc plate 2 that is roughly semi-circular. The upper arc plates of the two lateral arc plates 23 correspondingly form an upper annular portion, and the lower arc plates 2 correspondingly form a lower annular portion 2'. The insertion cavity 231 is formed by the upper annular portion and the lower annular portion on both sides being directly connected vertically. The inclined plate 25 and the lateral arc plate 23 connected to the inclined plate 25 constitute a single-sided elastic arm 3. The connection end of the inclined plate 25 and the vertical connecting plate 21 serves as the relatively fixed end of the elastic arm, while the lateral arc plate 23 serves as the elastic movable end of the elastic arm. When the PIN pin of the charging gun's docking component is squeezed into the plugging cavity 231 through the plugging hole 221, the two lateral arc plates 23 are compressed and deformed, and the arc-shaped inner wall surfaces of the two lateral arc plates 23 form an elastic contact and conduction with the PIN pin. The setting of the plugging hole 221 can also play a role in guiding the PIN pin, preventing the PIN pin from being inserted crookedly, thereby preventing the lateral arc plate 23 from being compressed and deformed in an abnormal direction. This is beneficial to the fatigue resistance of the lateral arc plate 23 (which can also refer to the two elastic arms) and to the service life of the integrated charging spring structure 100.

[0038] The integrated charging spring structure 100 is formed by stamping and bending on a metal strip, which is easy to manufacture. The integrated charging spring structure 100 is set along the continuous material strip 200. Specifically, the left and right sides of the integrated charging spring structure 100 are designed as material strip connection ends for connecting the intermediate material distribution strip 201. The intermediate material distribution strip 201 extends in the same direction as the length of the metal strip. The main material strips 202 on the front and rear sides are connected to the intermediate material distribution strip 201 through the vertical material distribution strip 203 respectively. The main material strips 202 on the front and rear sides are provided with downwardly extending bending feet 204. The bending feet 204 play a protective role for the integrated charging spring structure 100.

[0039] Next, a charging gun is introduced, including a charging gun body 300, on which an integrated charging spring structure 100 as described above is provided.

[0040] In this embodiment, the charging gun body 300 includes a plastic shell 301 and a terminal plastic base 302. The plastic shell 301 includes an upper shell 3011 and a lower shell 3012, both injection molded. After the terminal assembly A (including the terminal plastic base 302 and an integrated charging spring structure 100, a first terminal 303, a second terminal 304, a third terminal 305, a first plug-in post 306, a second plug-in post 307, etc., injection molded and fixed on the terminal plastic base 302) is installed and positioned inside the upper shell 3011, the upper shell 3011 and the lower shell 3012 are then... 012 are assembled and fixed together; the bottom of the lower shell 3012 is integrally formed with a plug-in protrusion 4. The outer periphery of the plug-in protrusion 4 is provided with a positioning groove 41 and a positioning rib 42 so that the docking hole of the charging gun can match and position with the plug-in protrusion 4. The plug-in protrusion 4 is provided with a plurality of clearance holes 43, which respectively make way for the first plug-in post 306, the second plug-in post 307 and the two plug-in cavities 231, so that the first plug-in post 306 and the second plug-in post 307 extend upwards to the top of the plug-in protrusion 4, and the upper opening of the plug-in cavity 231 is exposed on the top surface of the plug-in protrusion 4, and the plug-in cavity 231 is hidden below the top surface of the plug-in protrusion 4.

[0041] The integrated charging spring structure 100 is riveted with a first terminal post 303, which is embedded in the terminal plastic base 302, with the lower end of the first terminal post 303 extending out of the lower end of the terminal plastic base 302. The insertion cavities 231 of the two sets of plug-in bases 20 are exposed on the top of the terminal plastic base 302. The terminal plastic base 302 is also embedded with a second terminal post 304 and a third terminal post 305, the lower ends of the second terminal post 304 and the third terminal post 305 both extending out of the lower end of the terminal plastic base 302. The upper end of the second terminal post 304 is connected to a first plug-in post 306 extending out of the top of the terminal plastic base 302, and the upper end of the third terminal post 305 is connected to a second plug-in post 307 extending out of the top of the terminal plastic base 302. The first plug post 306 and the second plug post 307 are spaced apart on opposite sides, and the two plug cavities 231 are spaced apart on opposite sides, so that the four are arranged at four corners.

[0042] The key design feature of this utility model lies in its design of a riveting plate 10 and two sets of insertion seats 20 integrally connected to the front and rear ends of the riveting plate 10. Each insertion seat 20 includes a vertical connecting plate 21, a horizontal annular plate 22, and two lateral arc-shaped plates 23. The horizontal annular plate 22 has a vertically penetrating insertion hole 221, and the lateral arc-shaped plates 23 form an insertion cavity 231 directly below the insertion hole 221. This spring sheet structure is ingeniously designed and can be integrally stamped and bent on a metal strip, making it easy to manufacture. Furthermore, the combination design of the closed insertion hole 221 and the elastic insertion cavity 231 provides good structural strength and improves the problem of elastic fatigue damage to the insertion cavity 231 caused by repeated insertion and removal, thereby improving the reliability and durability of the insertion.

[0043] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An integrated charging spring structure, characterized in that: It includes a riveting plate and two sets of plug-in sockets integrally connected to the front and rear ends of the riveting plate, respectively; The riveting plate is provided with a through riveting hole that passes through the upper and lower end faces of the riveting plate. The connector includes a vertical connecting plate, a horizontal annular plate, and two lateral arc-shaped plates. The lower end of the vertical connecting plate is integrally connected to the corresponding front and rear ends of the riveting plate. The horizontal annular plate extends horizontally from the upper end of the vertical connecting plate. The horizontal annular plate has a vertically penetrating insertion hole. The lateral arc-shaped plates extend rearward from the corresponding left and right ends of the vertical connecting plate. The two lateral arc-shaped plates form an insertion cavity directly below the insertion hole.

2. The integrated charging spring structure according to claim 1, characterized in that: An extension foot is also connected to the other end of the horizontal annular plate opposite to the upper end of the vertical connecting plate. The extension foot extends downward integrally from the other end of the horizontal annular plate, and the extension foot maintains a distance from the lateral arc plate.

3. The integrated charging spring structure according to claim 2, characterized in that: The extension leg and the vertical connecting plate are arranged on opposite sides.

4. The integrated charging spring structure according to claim 2, characterized in that: The vertical connecting plate has an inclined plate extending backward integrally from its left and right sides, and the lateral arc plate is integrally connected to the extended end of the inclined plate.

5. The integrated charging spring structure according to claim 4, characterized in that: The lateral arc-shaped plate includes an arc-shaped main plate, an upper arc-shaped support plate, and a lower arc-shaped support plate. The arc-shaped main plate is integrally connected to the extended end of the inclined plate and extends arc-shaped towards the side where the extended foot is located. The upper arc-shaped support plate is located above the inclined plate and extends arc-shaped from the end of the arc-shaped main plate away from the extended foot towards the side where the vertical connecting plate is located. The lower arc-shaped support plate is located below the inclined plate and extends arc-shaped from the end of the arc-shaped main plate away from the extended foot towards the side where the vertical connecting plate is located.

6. The integrated charging spring structure according to claim 2, characterized in that: The lower end of the extended foot extends beyond the lower ends of the two lateral curved plates.

7. The integrated charging spring structure according to claim 4, characterized in that: The inclined plates at the left and right ends extend from the vertical connecting plate toward the extending foot and are arranged close to each other.

8. A charging gun, comprising a charging gun body, characterized in that: The charging gun body is provided with an integrated charging spring structure as described in any one of claims 1 to 7.

9. The charging gun according to claim 8, characterized in that: The charging gun body includes a plastic shell and a terminal plastic base; The integrated charging spring structure is riveted with a first terminal post, which is embedded in the terminal plastic base, with the lower end of the first terminal post extending out of the lower end of the terminal plastic base. The insertion cavities of the two sets of plug-in sockets are exposed on the top of the terminal plastic base. The terminal plastic base is also embedded with a second terminal post and a third terminal post, with the lower ends of the second terminal post and the third terminal post both extending out of the lower end of the terminal plastic base. The upper end of the second terminal post is connected to a first plug-in post extending out of the top of the terminal plastic base, and the upper end of the third terminal post is connected to a second plug-in post extending out of the top of the terminal plastic base.

10. The charging gun according to claim 9, characterized in that: The first and second plugs are spaced apart on opposite sides, and the two plug cavities are spaced apart on opposite sides.

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