Pin structure of charger

Abstract

The utility model provides a contact pin structure of a charger, the charger comprises a shell, a fixing groove is arranged in the shell, a soft gasket is arranged in the fixing groove, a contact pin is inserted in the soft gasket, the contact pin comprises a contact pin body, an insertion end arranged at the end position of the contact pin body and a wire connecting end used for connecting a wire, and the wire connecting end is connected with the contact pin body. An anti-skid part is arranged between the wire connecting end and the inserting end, the anti-skid part wraps the outer portion of the contact pin body and is used for increasing friction force between the contact pin body and the soft gasket, and the contact pin structure can overcome the defects that in the machining process in the prior art, due to the fact that a contact pin column is small in overall size and not easy to groove, and the side wall of the contact pin column is thin, the contact pin column is not easy to groove. Therefore, deformation is generated in the extrusion process, and the rejection rate of products is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of charger conductive connectors, and particularly relates to a pin structure of a charger. Background Art

[0002] The function of a charger is to convert electrical energy into a form suitable for charging a battery and provide power for a device.

[0003] In the prior art, in the utility model patent with the publication number of CN215343217U, a charger socket structure is disclosed, which includes a housing. A fixing groove is arranged inside the housing, and a soft gasket is arranged in the fixing groove. A power connection post and a pin post are inserted into the soft gasket. The pin post has a slot, and there is a movable hole on the side of the pin post. Through the deformation of the movable hole, the pin post is connected to the fixing groove. Although this connection mode can fix the pin post in the fixing groove, in the processing process, due to the relatively small overall volume of the pin post, it is not easy to open slots, and because the side wall of the pin post is relatively thin, deformation occurs during the extrusion process, increasing the rejection rate of the product. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art that in the processing process, due to the relatively small overall volume of the pin post, it is not easy to open slots, and because the side wall of the pin post is relatively thin, deformation occurs during the extrusion process, increasing the rejection rate of the product, so as to provide a pin structure of a charger that reduces the product qualification rate.

[0005] To this end, the utility model provides a pin structure of a charger. The charger includes a housing, and a fixing groove is arranged inside the housing. A soft gasket is arranged in the fixing groove. The pin is inserted into the soft gasket. The pin includes a pin body, an insertion end arranged at the end of the pin body, and a wire connection end for connecting a wire. An anti-slip portion is arranged between the wire connection end and the insertion end. The anti-slip portion wraps around the outside of the pin body and is used to increase the friction between the pin body and the soft gasket.

[0006] Further: A plurality of evenly distributed anti-slip blocks are arranged on the anti-slip portion. The anti-slip blocks are used to contact the soft gasket to form contact friction.

[0007] Further: The multiple anti-slip blocks are arranged in a mesh distribution.

[0008] Further: The anti-slip blocks are distributed along the circumferential direction of the pin body, and the multiple anti-slip blocks are arranged in a horizontal array along the length direction of the pin body.

[0009] Further: A wire receiving groove for receiving a wire is arranged at the wire connection end. Anti-slip strips in contact with the wire are arranged on the inner side wall of the wire receiving groove.

[0010] Further: The wire connection end has a wire connection block, the accommodation groove is opened in the wire connection block, and the wire connection block is arranged in a semi-circular arc structure.

[0011] Further: The wire connection block is arranged on the side of the anti-slip part, and the diameter of the wire connection block is larger than the diameter of the pin body.

[0012] The technical solution of the present utility model has the following advantages:

[0013] 1. For the pin structure of a charger provided by the present utility model, compared with the prior art, an anti-slip part is added at the connection between the pin and the soft gasket. After the pin is inserted into the rubber, there is an interference fit between the pin body and the rubber, and the outer side surface of the anti-slip part will be in full contact with the rubber, thereby increasing the contact friction between the pin body and the rubber. During long-term use, even if a gap appears between the pin body and the rubber due to thermal expansion and contraction, the anti-slip part can still fit tightly with the rubber to prevent the pin body from moving.

[0014] 2. For the pin structure of a charger provided by the present utility model, the anti-slip part is composed of a plurality of anti-slip blocks arranged in a mesh structure. The anti-slip blocks are arranged along the circumferential direction of the pin body, and the contact surfaces of adjacent anti-slip blocks are not parallel. When the contact surfaces are not parallel, the friction force will increase as the contact surface area increases. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall pin structure;

[0017] Figure 2 It is a schematic diagram of the structure of Embodiment 1 of the anti-slip part;

[0018] Figure 3 It is a schematic diagram of the structure of Embodiment 2 of the anti-slip part;

[0019] Figure 4 For Figure 1 The enlarged view of part A in

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the pin structure.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1. Pin body; 11. Insertion end; 2. Wire connection end; 21. Accommodation groove; 3. Anti-slip part; 31. Anti-slip block; 4. Anti-slip strip; 5. Wire connection block. Specific embodiments

[0023] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Embodiment

[0028] This embodiment provides a pin structure of a charger. The charger includes a housing, a fixing groove is provided inside the housing, and there is a soft gasket in the fixing groove. The pin is inserted into the soft gasket. The pin includes a pin body 1, an insertion end 11 provided at the end of the pin body 1, and a wire connection end 2 for connecting a wire. An anti-slip part 3 is provided between the wire connection end 2 and the insertion end 11. The anti-slip part 3 wraps around the outside of the pin body 1 and is used to increase the friction between the pin body 1 and the soft gasket.

[0029] The above specific improvement is as followsFigure 1 As shown, when installing the pin, the pin needs to be inserted into the soft gasket. Since the surface of the pin is relatively smooth, during the initial insertion process, the pin can fit tightly with the soft gasket (the soft gasket is made of rubber material). However, after long-term use, a gap will be generated between the pin and the soft gasket, resulting in the separation between the pin and the soft gasket. Compared with the prior art, an anti-slip portion 3 is added at the connection between the pin and the soft gasket. After the pin is inserted into the rubber, the pin body 1 has an interference fit with the rubber, and the outer side surface of the anti-slip portion 3 will be in full contact with the rubber, thereby increasing the contact friction between the pin body 1 and the rubber. During long-term use, even if a gap appears between the pin body 1 and the rubber due to thermal expansion and contraction, the anti-slip portion 3 can still fit tightly with the rubber to prevent the pin body 1 from moving.

[0030] Based on the above embodiment: A number of evenly distributed anti-slip blocks 31 are provided on the anti-slip portion 3, and the anti-slip blocks 31 are used to contact the soft gasket to form contact friction.

[0031] Based on the above embodiment: The multiple anti-slip blocks 31 are arranged in a mesh distribution.

[0032] The above specific improvement is:

[0033] Embodiment 1: As Figures 2 - 5 shown, the anti-slip portion 3 is composed of multiple anti-slip blocks 31 arranged in a mesh structure, the anti-slip blocks 31 are arranged along the circumferential direction of the pin body 1, and the contact surfaces of adjacent anti-slip blocks 31 are not parallel. When the contact surfaces are not parallel, the friction force will increase as the contact surface area increases.

[0034] Based on the above embodiment: The anti-slip blocks 31 are distributed along the circumferential direction of the pin body 1, and the multiple anti-slip blocks 31 are arranged in a horizontal array along the length direction of the pin body 1.

[0035] The above specific improvement is:

[0036] Embodiment 2: As Figure 3 shown, a piece of anti-slip block 31 is arranged in an annular structure and distributed along the circumferential direction of the pin body 1, and the multiple anti-slip blocks 31 are arranged vertically along the pin body 1. Through the arrangement of the anti-slip blocks 31, when the pin body 1 is inserted into the rubber, the anti-slip portion 3 has an interference fit with the rubber. Thus, after the pin body 1 becomes loose, since the anti-slip portion 3 can still fit with the rubber, the position of the pin body 1 can be located to prevent the entire pin from becoming loose.

[0037] Based on the above embodiment: A wire receiving groove 21 for receiving the wire is provided at the wire connection end 2, and anti-slip strips 4 in contact with the wire are arranged on the inner side wall of the wire receiving groove 21.

[0038] The specific improvements are as follows: As Figure 2 and Figure 3 shown, to increase the contact area between the wire and the receiving groove 21, a plurality of anti-slip strips 4 in contact with the wire are provided on the inner side surface of the receiving groove 21. Through the arrangement of the anti-slip strips 4, the contact friction between the wire and the receiving groove 21 can be increased, and when the solder paste is welded in, the wire can be prevented from slipping out of the receiving groove 21.

[0039] Based on the above embodiment: The wire connection end 2 has a wire connection block 5, the receiving groove 21 is formed in the wire connection block 5, and the wire connection block 5 is arranged in a semi-circular arc structure.

[0040] Based on the above embodiment: The wire connection block 5 is arranged on the side of the anti-slip portion 3, and the diameter of the wire connection block 5 is larger than the diameter of the pin body 1.

[0041] The specific improvements are as follows: As Figure 2 and Figure 3 shown, the wire connection block 5 is arranged in a semi-circular arc structure. When the solder paste is used to weld the wire and the receiving groove 21, it can play a role in carrying the solder paste to prevent the solder paste from flowing out. Moreover, the semi-circular arc structure can better wrap the wire to prevent the wire from becoming unsoldered.

[0042] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A charger pin structure, the charger comprises a shell, a fixing groove is arranged inside the shell, and a soft gasket is arranged in the fixing groove, characterized in that: The plug pin is inserted into the soft gasket, and comprises a plug pin body (1), an insertion end (11) arranged at the end of the plug pin body (1), and a wire connecting end (2) for connecting a wire, an anti-slip portion (3) is arranged between the wire connecting end (2) and the insertion end (11), and the anti-slip portion (3) is wrapped around the outside of the plug pin body (1) and is used to increase the friction between the plug pin body (1) and the soft gasket.

2. A charger pin structure according to claim 1, characterized in that: The anti-slip portion (3) is provided with a plurality of evenly distributed anti-slip blocks (31), and the anti-slip blocks (31) are used to contact with the soft pad to form contact friction.

3. A charger pin structure according to claim 2, characterized in that: A plurality of anti-sliding blocks (31) are distributed in a mesh shape.

4. A charger pin structure according to claim 2, characterized in that: The anti-sliding blocks (31) are distributed along the circumferential direction of the plug body (1), and a plurality of anti-sliding blocks (31) are arranged in a transverse array along the length direction of the plug body (1).

5. A charger pin structure according to any one of claims 1 to 4, characterized in that: The wire connection end (2) is provided with a receiving groove (21) for receiving the wire, and the inner side wall of the receiving groove (21) is arranged with anti-slip strips (4) in contact with the wire.

6. A charger pin structure according to claim 5, characterized in that: The wire connection end (2) has a wire connection block (5), the receiving groove (21) is arranged in the wire connection block (5), and the wire connection block (5) is arranged in a semicircular arc structure.

7. A charger pin structure according to claim 6, characterized in that: The wire connection block (5) is arranged on the side of the anti-slip portion (3), and the diameter of the wire connection block (5) is greater than the diameter of the pin body (1).

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