Conversion connector and charging system

Abstract

The utility model discloses a change-over connector and a charging system, the change-over connector comprises a socket main body and a change-over plug detachably connected with the socket main body, the socket main body is provided with a plugging cavity used for accommodating the change-over plug, and the change-over connector is provided with a clamping groove on the inner wall of the plugging cavity of the socket main body. The conversion plug is internally provided with a suspension tongue which at least partially overhangs the outside of the conversion plug and is clamped and matched with the clamping groove, and a driving piece used for controlling the telescopic state of the telescopic assembly, and when the conversion plug needs to be detached from the socket main body, the telescopic state of the telescopic assembly is controlled through the driving piece, and then the suspension tongue is controlled to exit from the clamping groove. According to the utility model, unlocking between the conversion plug and the socket main body is realized, so that conversion plugs suitable for different standards can be conveniently installed on the socket main body, and the conversion connector and the charging system adopting the conversion connector have good stability.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a conversion connector and a charging system. Background Art

[0002] At present, international electrical standards are inconsistent, and electrical plugs and power sockets in most countries cannot achieve a unified standard. Conversion plugs that can connect and conduct electricity between electrical plugs in different countries and power sockets in another country have been introduced on the market. With the development of new energy vehicles, a conversion connector integrating the conversion plug into a household charging gun has emerged. The conversion connector usually includes a socket body electrically connected to the wire of the household charging gun and a conversion plug detachably connected to the socket body.

[0003] The existing conversion plug and socket body are usually disassembled and assembled by plugging and unplugging. In order to ensure that they are not easily separated after installation, the pre-tightening force after the conversion plug and socket body are installed needs to be set relatively large. In this way, whether the conversion plug is removed from the socket body or the conversion plug is installed on the socket body, it will be very laborious, resulting in inconvenient disassembly and assembly of the conversion plug and socket body. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a conversion connector and a charging system to solve the technical problems mentioned in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a conversion connector, including a socket body and a conversion plug detachably connected to the socket body. A plugging cavity for receiving the conversion plug is provided on the socket body, and a clamping groove is provided on the inner wall of the plugging cavity.

[0006] A cavity is provided inside the conversion plug. An expansion and contraction assembly is slidably arranged inside the cavity along a direction perpendicular to the direction in which the conversion plug is inserted into the socket body. One end of the expansion and contraction assembly facing the clamping groove protrudes with a hanging tongue. At least part of the hanging tongue extends outside the conversion plug and is clamped and matched with the clamping groove. A driving member for controlling the expansion and contraction state of the expansion and contraction assembly is also provided inside the cavity to control the hanging tongue to withdraw from the clamping groove when the conversion plug is removed from the socket body.

[0007] In some embodiments, the expansion and contraction assembly includes an elastic member and an expansion and contraction body slidably arranged inside the cavity. The elastic member is pressed between the expansion and contraction body and the inner wall of the cavity.

[0008] In some embodiments, at least one of the expansion and contraction body and the cavity is provided with a receiving groove for receiving the elastic member.

[0009] In some embodiments, the elastic member is a spring.

[0010] In some embodiments, a driving hole is formed through the telescopic body along the direction in which the conversion plug is inserted into the socket body. The driving member is slidably arranged in the cavity along the direction in which the conversion plug is inserted into the socket body. A driving block protruding from the end face of the driving member facing the telescopic body and extending into the driving hole is provided. One end of the driving block away from the cantilever has an inclined surface abutting against the inner wall of the driving hole. Pressing the driving member can cause the inclined surface of the driving block to drive the telescopic body to move inward, thereby driving the cantilever to withdraw from the clamping groove.

[0011] In some embodiments, a first sliding groove is arranged in the cavity along the direction perpendicular to the direction in which the conversion plug is inserted into the socket body, and a first sliding block is correspondingly arranged on the side wall of the telescopic body;

[0012] A second sliding groove is arranged in the cavity along the direction in which the conversion plug is inserted into the socket body, and a second sliding block is correspondingly arranged on the side wall of the driving member.

[0013] In some embodiments, a hook portion is formed on the inner side of the second sliding block, and a limiting portion for limiting the initial position of the driving member is arranged on the side wall of the telescopic body. When the driving member is in the initial position, the hook portion and the limiting portion are in a blocking fit.

[0014] In some embodiments, the driving member is of a plate-like structure, and the driving member, the driving block, the second sliding block and the hook portion are integrally injection-molded.

[0015] In some embodiments, when the driving member is in the initial position, the outer surface of the driving member is flush with or lower than the outer surface of the conversion plug.

[0016] A charging system of the present utility model includes a charging gun and the conversion connector, and the charging gun and the conversion connector are connected by a cable.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The conversion connector of the present utility model is provided with a clamping groove on the inner wall of the insertion cavity of the socket body, a cantilever at least partially extending outside the conversion plug and engaged with the clamping groove in the conversion plug, and a driving member for controlling the telescopic state of the telescopic assembly. When it is necessary to remove the conversion plug from the socket body, the telescopic state of the telescopic assembly is controlled by the driving member, and then the cantilever is controlled to withdraw from the clamping groove, so as to realize the unlocking between the conversion plug and the socket body, thereby facilitating the installation of conversion plugs suitable for different standards onto the socket body, and enabling the conversion connector and the charging system adopting the conversion connector to have good stability. Description of the Drawings

[0018] The drawings incorporated in and forming a part of the specification illustrate embodiments of the present utility model and, together with the description thereof, are used to explain the principles of the present utility model.

[0019] Figure 1 Exploded schematic view of the conversion connector provided for the present utility model;

[0020] Figure 2 When the driving member is in the initial position, Figure 1 Cross-sectional view of the conversion connector shown;

[0021] Figure 3 For Figure 2 Partial enlarged schematic view at A in

[0022] Figure 4 When the driving member is in the pressed state, Figure 1 Partial cross-sectional view of the conversion connector shown;

[0023] Figure 5 For Figure 1 Structural schematic view of the conversion plug in the conversion connector shown;

[0024] Figure 6 For Figure 1 Schematic view of the positional relationship between the telescopic assembly and the driving member in the conversion connector shown;

[0025] Figure 7 For Figure 1 Structural schematic view of the driving member in the conversion connector shown;

[0026] Figure 8 Principle block diagram of the charging system provided for the present utility model.

[0027] The labels in the figures are as follows:

[0028] 1. Conversion connector; 2. Charging gun; 3. Cable; 4. Power socket;

[0029] 10. Socket body; 101. Insertion cavity; 102. Clamping groove;

[0030] 20. Conversion plug; 201. Cavity; 202. First slideway; 203. Second slideway;

[0031] 30. Telescopic assembly; 301. Elastic member; 302. Telescopic body; 303. Receiving groove; 304. Driving hole; 305. First slider; 306. Limiting portion;

[0032] 40. Hanging tongue;

[0033] 50. Driving member; 501. Driving block; 502. Inclined surface; 503. Second slider; 504. Hook portion;

[0034] 60. Direction of inserting the conversion plug into the socket body. Detailed implementation mode

[0035] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention or its application or use.

[0037] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be regarded as part of the specification.

[0038] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Accordingly, other examples of the exemplary embodiments may have different values.

[0039] A conversion connector, as Figures 1-7 shown, includes a socket body 10 and a conversion plug 20 detachably connected to the socket body 10. A plug-in cavity 101 for receiving the conversion plug 20 is provided on the socket body 10, and a clamping groove 102 is provided on the inner wall of the plug-in cavity 101; a cavity 201 is provided inside the conversion plug 20, and a telescopic assembly 30 is slidably arranged in the cavity 201 along a direction 60 perpendicular to the direction of inserting the conversion plug into the socket body. A tongue 40 protrudes from one end of the telescopic assembly 30 facing the clamping groove 102, and at least part of the tongue 40 extends outside the conversion plug 20 and is engaged with the clamping groove 102. Specifically, as Figure 5 shown, the side and top of the cavity 201 are of an open design. A first slideway 202 is provided in the cavity 201 along a direction 60 perpendicular to the direction of inserting the conversion plug into the socket body. A first slider 305 is correspondingly provided on the side wall of the telescopic body 302. By cooperating the first slideway 202 with the first slider 305, the telescopic body 302 can be slid in the cavity 201 along a direction 60 perpendicular to the direction of inserting the conversion plug into the socket body; a second slideway 203 is provided in the cavity 201 along the direction 60 of inserting the conversion plug into the socket body. A second slider 503 is correspondingly provided on the side wall of the driving member 50. By cooperating the second slideway 203 with the second slider 503, the driving member 50 can be slid in the cavity 201 along the direction 60 of inserting the conversion plug into the socket body. Further, as Figures 1-4As shown, a driving member 50 for controlling the telescopic state of the telescopic assembly 30 is further provided in the cavity 201 to control the tongue 40 to withdraw from the engaging groove 102 when the adapter plug 20 is removed from the socket body 10. When it is necessary to remove the adapter plug 20 from the socket body 10, the telescopic state of the telescopic assembly 30 is controlled by the driving member 50, and then the tongue 40 is controlled to withdraw from the engaging groove 102, realizing the unlocking between the adapter plug 20 and the socket body 10, so as to facilitate the installation of different adapter plugs 20 onto the socket body 10, and enabling the conversion connector 1 and the charging system using the conversion connector 1 to have good stability.

[0040] In one embodiment, as Figures 3-7 shown, the telescopic assembly 30 includes an elastic member 301 and a telescopic body 302 slidably disposed in the cavity 201. The elastic member 301 is pressed between the telescopic body 302 and the inner wall of the cavity 201. The elastic member 301 is preferably a spring. Further, in order to facilitate the assembly of the elastic member 301 and make the elastic member 301 have good stability after assembly, a receiving groove 303 for receiving the elastic member 301 is formed on at least one of the telescopic body 302 and the cavity 201. For details, please refer to Figure 6 .

[0041] In one embodiment, as Figures 2-4 、 Figures 6-7 shown, a driving hole 304 is formed through the telescopic body 302 along the direction 60 in which the adapter plug is inserted into the socket body. The driving member 50 is slidably disposed in the cavity 201 along the direction 60 in which the adapter plug is inserted into the socket body, and a driving block 501 protruding from the end face of the driving member 50 facing the telescopic body 302 and extending into the driving hole 304 is provided. One end of the driving block 501 away from the tongue 40 has an inclined surface 502 abutting against the inner wall of the driving hole 304. Pressing the driving member 50 can cause the inclined surface 502 of the driving block 501 to drive the telescopic body 302 to move inward, thereby driving the tongue 40 to withdraw from the engaging groove 102.

[0042] In one embodiment, as Figure 6 and Figure 7 shown, a hook portion 504 is formed on the inner side of the second slider 503, and a limiting portion 306 for limiting the initial position of the driving member 50 is provided on the side wall of the telescopic body 302. When the driving member 50 is in the initial position, the hook portion 504 and the limiting portion 306 are in a blocking fit, thereby preventing the driving member 50 from falling off from the cavity 201; and when the driving member 50 is in the initial position, the outer surface of the driving member 50 is flush with or lower than the outer surface of the adapter plug 20, thereby avoiding accidental unlocking between the socket body 10 and the adapter plug 20 due to accidental contact with the driving member 50.

[0043] Further, in order to reduce the manufacturing costs of the driving member 50 and the conversion connector 1, the driving member 50, the driving block 501, the second slider 503 and the hook portion 504 are integrally injection molded.

[0044] The present utility model further provides a charging system, as Figure 8 shown, which includes a charging gun 2 and a conversion connector 1. The charging gun 2 and the conversion connector 1 are connected by a cable 3. When an operator charges a new energy vehicle, the conversion plug 20 of the conversion connector 1 can be replaced according to needs, so as to achieve adaptation to power sockets 4 with different charging standards. When it is necessary to remove the conversion plug 20 from the socket body 10, the telescopic state of the telescopic assembly 30 is controlled by the driving member 50, and then the tongue 40 is controlled to withdraw from the clamping groove 102, so as to realize the unlocking between the conversion plug 20 and the socket body 10, thereby facilitating the installation of different conversion plugs 20 onto the socket body 10, and enabling the conversion connector 1 and the charging system using the conversion connector 1 to have good stability.

[0045] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A conversion connector, comprising a socket body and a conversion plug detachably connected to the socket body, wherein the socket body is provided with a plug-in cavity for receiving the conversion plug, characterized in that: A clamping groove is provided on the inner wall of the plug-in cavity; A cavity is provided in the conversion plug, and a telescopic component is slidably provided in the cavity along a direction perpendicular to the direction in which the conversion plug is inserted into the socket body. A hanging tongue is protruding from one end of the telescopic component facing the card slot. The hanging tongue at least partially hangs out of the outside of the conversion plug and is card-engaged with the card slot. A driving member for controlling the telescopic state of the telescopic component is also provided in the cavity, so as to control the hanging tongue to withdraw from the card slot when the conversion plug is removed from the socket body.

2. A conversion connector according to claim 1, characterized in that: The telescopic assembly comprises an elastic member and a telescopic body slidably arranged in the cavity, and the elastic member is pressed between the telescopic body and the inner wall of the cavity.

3. A conversion connector according to claim 2, characterized in that: At least one of the telescopic body and the cavity is provided with a receiving groove for receiving the elastic member.

4. A conversion connector according to claim 2, characterized in that: The elastic member is a spring.

5. A conversion connector according to claim 2, characterized in that: A driving hole is provided on the telescopic body along the direction in which the conversion plug is inserted into the socket body. The driving member is slidably arranged in the cavity along the direction in which the conversion plug is inserted into the socket body. A driving block is protruding from the end surface of the driving member facing the telescopic body and cantilevered into the driving hole. The end of the driving block away from the hanging tongue has an inclined surface abutting against the inner wall of the driving hole. Pressing the driving member can cause the inclined surface of the driving block to drive the telescopic body to move inward, thereby driving the hanging tongue to withdraw from the clamping groove.

6. A conversion connector according to claim 5, characterized in that: A first slideway is arranged in the cavity along a direction perpendicular to the direction in which the conversion plug is inserted into the socket body, and a first sliding block is correspondingly arranged on the side wall of the telescopic body; A second slideway is arranged in the cavity along the direction in which the conversion plug is inserted into the socket body, and a second sliding block is correspondingly arranged on the side wall of the driving member.

7. A conversion connector according to claim 6, characterized in that: A hook is formed on the inner side of the second sliding block, and a limiting portion for limiting the initial position of the driving member is arranged on the side wall of the telescopic body. When the driving member is in the initial position, the hook is blocked and matched with the limiting portion.

8. A conversion connector according to claim 7, characterized in that: The driving member is a plate-shaped structure, and the driving member, the driving block, the second sliding block and the hook are integrally injection-molded.

9. A conversion connector according to claim 7, characterized in that: When the driving member is in the initial position, the outer surface of the driving member is flush with the outer surface of the conversion plug or is arranged lower than the outer surface of the conversion plug.

10. A charging system, characterized in that: It comprises a charging gun and a conversion connector according to any one of claims 1 to 9, wherein the charging gun and the conversion connector are connected via a cable.

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