Integrated charging gun head and charging gun

Abstract

The utility model belongs to the technical field of new energy automobile charging interfaces, and particularly relates to an integrated charging gun head and a charging gun, the charging gun head comprises a terminal, a gun head body and a circuit board; the gun head body is sleeved on the terminal; the circuit board is connected with the gun head body; the end part, facing the circuit board, of the terminal is provided with a contact part. The contact part is connected with the circuit board. According to the integrated charging gun head provided by the invention, the terminal is directly connected with the circuit board through the contact part, the structure is simple, and the assembly is convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle charging interfaces, and in particular relates to an integrated charging gun head and a charging gun. Background Art

[0002] AC charging mode 2 usually consists of a charging gun, a control box, and a three-pin plug, which has the problems of large size, heavy weight, and high cost. There is a solution that integrates the control box into the charging gun, that is, the circuit board is built into the charging gun, which facilitates the lightweight and miniaturization of the product, but the connection between the terminal and the circuit board is indirectly connected through a cable or connector, which has the problem of cumbersome and complicated assembly. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides an integrated charging gun head and a charging gun, wherein the terminal is directly connected to the circuit board through a contact portion, and has a simple structure and is easy to assemble.

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

[0005] In a first aspect, an integrated charging gun head includes a terminal, a gun head body and a circuit board;

[0006] The gun head body is sleeved on the terminal;

[0007] The circuit board is connected to the gun head body;

[0008] The end of the terminal facing the circuit board is provided with a contact portion;

[0009] The contact portion is electrically conductively connected to the printed circuit board.

[0010] According to a further solution of the present application, the gun head body is formed by injection molding with the terminal as an insert.

[0011] In a further solution, the terminal includes a hollow cylindrical section and a contact portion connected to the cylindrical section; a glue inlet is provided at the connection between the cylindrical section and the gun head body.

[0012] According to a further solution of the present application, the contact portion is a contact sheet along the axial direction.

[0013] According to a further solution of the present application, the circuit board is provided with U-shaped pads corresponding to the contact portions in an axial direction; the contact portions are inserted into the U-shaped pads and welded to the U-shaped pads.

[0014] According to a further solution of the present application, the circuit board is provided with opening spring sheets corresponding to the contact portions in a one-to-one manner along the axial direction; the contact portions are inserted into the opening spring sheets and connected with the opening spring sheets.

[0015] According to a further solution of the present application, the gun head body is provided with a slide groove along the axial direction; and the circuit board is provided with a guide edge matching with the slide groove.

[0016] In a second aspect, a charging gun includes the above-mentioned integrated charging gun head.

[0017] The beneficial effects of the present invention are:

[0018] In the present invention, the terminal is directly connected to the circuit board through the contact part, the structure is simple, the assembly is convenient, the number of parts is reduced, and the manufacturing cost is reduced.

[0019] In the present invention, through the setting of the slide groove and the guide edge, the circuit board can directly slide and dock with the gun head body. At the same time, the axially arranged contact piece, U-shaped soldering pad and opening spring piece, the U-shaped soldering pad and the opening spring piece are all in an open form. When the circuit board slides and docks with the gun head body, the U-shaped soldering pad and the opening spring piece are plugged into the contact piece of the terminal, which is easy to operate and convenient for automated assembly.

[0020] The integrated charging gun head provided by the present invention can achieve the purpose of compact and miniaturized charging gun structure, and realize the experience of lightness and portability in AC charging mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An exploded view of the integrated charging gun head provided in Example 1;

[0022] Figure 2 A schematic diagram of a terminal provided in Embodiment 1;

[0023] Figure 3 This is a cross-sectional view of the terminal and the gun head body after injection molding provided in the first embodiment;

[0024] Figure 4 A schematic diagram of a charging gun head provided in Example 1;

[0025] FIG5 (a) is a schematic diagram of a circuit board provided in Embodiment 1;

[0026] FIG5( b ) is a schematic diagram of the circuit board provided in Embodiment 1 from another viewing angle;

[0027] FIG6 (a) is a schematic diagram of the connection between the U-shaped pad and the contact sheet provided in the first embodiment;

[0028] FIG6 (b) is a schematic diagram of the connection between the opening spring piece, the U-shaped pad and the U-shaped pad provided in the first embodiment;

[0029] In the figure:

[0030] 100 is a terminal; 101 is a cylindrical section; 102 is a contact piece; 103 is a glue inlet hole;

[0031] 200 is the charging gun head; 201 is the slide;

[0032] 300 is a circuit board; 301 is a guide edge; 302 is a U-shaped pad; 303 is an opening spring. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning. Embodiment 1

[0037] This embodiment provides an integrated charging gun head, see Figure 1 , including a terminal 100, a gun head body 200 and a circuit board 300; the gun head body 200 is sleeved on the terminal 100; the circuit board 300 is connected to the gun head body 200, and one side of the circuit board 300 is installed in the gun head body 200; a protruding contact portion is provided at the end of the terminal 100 facing the circuit board 300; the contact portion is connected to the circuit board 300.

[0038] As an optional implementation, the gun head body 200 is formed by insert molding with the terminal 100 as an insert, and the terminal 100 is insert molded in the gun head body 200 , and the terminal 100 will leak out of the contact portion after injection molding.

[0039] As an optional implementation, see Figure 2 and Figure 3 The terminal 100 includes a hollow cylindrical section 101 and a contact portion connected to the cylindrical section 101; a glue inlet 103 is provided at the connection between the cylindrical section 101 and the gun head body 200. The contact portion is a contact piece 102 along the axial direction. The cylindrical section 100 has a standard contact pair structure and size. The glue inlet 103 introduces the melted plastic during injection molding into the cylindrical section 101, so that the inside and outside of the cylindrical section 101 are covered.

[0040] As an optional embodiment, referring to FIG. 5 (a) and FIG. 6 (a), the circuit board 300 is provided with a U-shaped pad 302 corresponding to the contact sheet 102 along the axial direction; the contact sheet 102 is inserted into the U-shaped pad 302 along the axial direction and connected to the U-shaped pad 302 by soldering to achieve connection and conduction. The U-shaped pad is in an open form, and the U-shaped pad 302 and the contact sheet 102 can be directly plugged into each other, which is convenient to operate.

[0041] As an optional embodiment, referring to FIG. 5 (b) and FIG. 6 (b), the circuit board 300 may also be provided with an opening spring piece 303 corresponding to the contact piece 102 along the axial direction; the contact piece 102 is inserted into the opening spring piece 303 along the axial direction and connected with the opening spring piece 303, and the opening spring piece 303 and the contact piece 102 are clamped by elastic deformation to achieve connection and conduction. The opening spring piece 303 is in an open form, and the U-shaped pad and the contact piece 102 can be directly plugged, which is convenient to operate.

[0042] As an optional implementation, see Figure 4 , the gun head body 200 is provided with a slide groove 201 along the axial direction. Referring to FIG5 (a), the circuit board 300 is provided with a guide edge 301 matched with the slide groove 201. The guide edge 301 and the slide groove 201 match each other, and play a guiding and positioning role when the circuit board 300 and the gun head body 200 are slidably docked. Referring to FIG6 (a) and FIG6 (b), when the circuit board 300 slides and docks with the gun head body 200, the U-shaped pad 302 and the opening spring piece 303 are plugged with the contact piece 102, which is convenient to operate and convenient for automated assembly. Embodiment 2

[0043] This embodiment provides a charging gun, including the integrated charging gun head provided in the first embodiment. The connection structure between the contact portion and the circuit board 300 is not limited to the use of the charging gun, but can also be used on power connection devices such as connecting plug chargers and signal connection devices.

[0044] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Without departing from the scope and technical principles of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art, and these modifications and changes should also be regarded as the scope of protection of the present invention.

Claims

1. An integrated charging gun head, characterized in that: It comprises a terminal (100), a gun head body (200) and a circuit board (300); The gun head body (200) is sleeved on the terminal (100); The circuit board (300) is connected to the gun head body (200); The end of the terminal (100) facing the circuit board (300) is provided with a contact portion; The contact portion is conductively connected to the circuit board (300); the circuit board (300) is provided with U-shaped pads (302) corresponding to the contact portion in an axial direction; the contact portion is inserted into the U-shaped pads (302) and welded to the U-shaped pads (302); the gun head body (200) is provided with a slide groove (201) in an axial direction; and the circuit board (300) is provided with a guide edge (301) matching the slide groove (201).

2. The integrated charging gun head according to claim 1, characterized in that: The gun head body (200) is formed by injection molding with the terminal (100) as an insert.

3. The integrated charging gun head according to claim 2, characterized in that: The terminal (100) comprises a hollow cylindrical section (101) and a contact portion connected to the cylindrical section (101); a glue inlet (103) is provided at the connection between the cylindrical section (101) and the gun head body (200).

4. The integrated charging gun head according to claim 1, characterized in that: The contact portion is a contact sheet (102) along the axial direction.

5. An integrated charging gun head, characterized in that: It comprises a terminal (100), a gun head body (200) and a circuit board (300); The gun head body (200) is sleeved on the terminal (100); The circuit board (300) is connected to the gun head body (200); The end of the terminal (100) facing the circuit board (300) is provided with a contact portion; The contact portion is conductively connected to the circuit board (300); the circuit board (300) is provided with opening spring sheets (303) corresponding to the contact portion one by one along the axial direction; the contact portion is inserted into the opening spring sheets (303) and connected to the opening spring sheets (303).

6. A charging gun, characterized in that: Comprising the integrated charging gun head as described in any one of claims 1 to 5.

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