Electric vehicle charging gun

Abstract

An electric vehicle charging gun comprises a charging plug, a charging wire, a charging handle, a PCB and a plugging terminal. The charging handle is integrally formed, and the two ends of the charging handle are connected with the charging plug and the charging wire respectively. The charging plug is internally provided with a bin body, the bin body is provided with a through opening, the PCB is installed in the bin body through the opening, and the plugging terminal is connected to the opening; a button is arranged on the PCB, at least one side wall of the bin body forms a pressing surface for a shell of the charging plug, and the pressing surface is matched with the button in an abutting mode. Compared with the prior art, the bin body of the electric vehicle charging gun can protect the PCB from being influenced and damaged by molten glue, the yield and the production quality are guaranteed, in addition, one part of the shell of the charging plug serves as a pressing face to be matched with the button, the switch structure is simplified, the structure is simple, assembling is convenient, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging guns, and particularly relates to an electric vehicle charging gun. Background Art

[0002] In order to simplify the structure and molding process of the charging gun, improve the assembly efficiency and the appearance of the charging gun, the charging handle of the existing charging gun is integrally injection molded and connected to the charging plug and the charging wire. For example, the charging gun disclosed in the Chinese patent with the publication number CN107234976B adopts this technology. However, during the molding process, the molten glue easily drips onto the PCB board installed in the charging plug, which easily damages the PCB board or even causes it to fail. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an electric vehicle charging gun.

[0004] To achieve the above purpose, the utility model discloses an electric vehicle charging gun, which includes a charging plug, a charging wire, a charging handle, a PCB board, and a plugging terminal;

[0005] The charging handle is integrally formed, and its two ends are respectively connected to the charging plug and the charging wire;

[0006] A cavity is provided in the charging plug, the cavity is provided with a through opening, the PCB board is installed in the cavity through the opening, and the plugging terminal is connected to the opening;

[0007] A button is provided on the PCB board, at least one side wall of the cavity forms a pressing surface as the outer shell of the charging plug, and the pressing surface is in abutting cooperation with the button.

[0008] Preferably, the pressing surface is provided with an open-loop groove to form a pressing piece.

[0009] Further preferably, an isolation film covering the groove is provided on the outer wall of the pressing surface.

[0010] Further preferably, the groove is in an Ω shape.

[0011] Preferably, an annular groove is provided on the outer side wall of the cavity on one side of the opening, and the plugging terminal is provided with a clamping portion that snaps into the annular groove.

[0012] Further preferably, an insertion portion inserted into the opening is provided at the middle position of the plugging terminal.

[0013] Preferably, a guiding groove is provided in the cavity, and the PCB board is inserted into the cavity along the guiding groove.

[0014] Further preferably, the height of the guide groove is 0.05 mm to 0.15 mm larger than the thickness of the PCB board.

[0015] Preferably, the plugging terminal is provided with a through hole for the wire to pass through.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] A storage body is provided inside the charging plug. The storage body is provided with a penetrating opening. The PCB board is installed inside the storage body through the opening. The plugging terminal is connected to the opening. By providing the storage body and the plugging terminal as above, when the integrally injection-molded charging handle connects the charging plug and the charging wire, the storage body can protect the PCB board from being affected and damaged by the molten glue, ensuring the yield rate and production quality.

[0018] Taking a part of the outer shell of the charging plug as at least one side wall of the storage body makes the storage body located close to the outside, so as to facilitate the setting of a button to achieve the switch function. In addition, a part of the outer shell of the charging plug serves as a pressing surface to cooperate with the button, which simplifies the switch structure, has a simple structure, is convenient for assembly, and has a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a schematic perspective view of an electric vehicle charging gun in Embodiment 1;

[0020] Figure 2 is Figure 1 a cross-sectional view of the electric vehicle charging gun in

[0021] Figure 3 is Figure 2 a partially enlarged schematic view at A in

[0022] Figure 4 a schematic perspective view of the charging plug, the plugging terminal and the PCB board;

[0023] Charging plug 1; Storage body 11; Opening 111; Pressing surface 112; Groove 113; Pressing piece 114; Annular groove 115; Guide groove 116;

[0024] Charging wire 2;

[0025] Charging handle 3;

[0026] PCB board 4; Button 41;

[0027] Plugging terminal 5; Clamping portion 51; Insertion portion 52; Through hole 53;

[0028] Isolation film 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] An electric vehicle charging gun, as shown in Figures 1 - 3 , includes a charging plug 1, a charging wire 2, a charging handle 3, a PCB board 4, and a plugging terminal 5; wherein, the charging handle 3 is integrally formed by injection molding, and its two ends are respectively connected to the charging plug 1 and the charging wire 2. A cavity 11 is provided inside the charging plug 1, and the cavity 11 is provided with a through opening 111. The PCB board 4 is installed inside the cavity 11 through the opening 111, and the plugging terminal 5 is connected to the opening 111. By providing the cavity 11 and the plugging terminal 5, when the charging handle 3 integrally injection-molded connects the charging plug 1 and the charging wire 2, the cavity 11 can protect the PCB board 4 from being affected and damaged by the molten glue, ensuring the yield rate and production quality. A button 41 is provided on the PCB board 4, and at least one side wall of the cavity 11 forms a pressing surface 112 as the outer shell of the charging plug 1, and the pressing surface 112 is in abutting cooperation with the button 41. Making a part of the outer shell of the charging plug 1 serve as at least one side wall of the cavity 11 makes the cavity 11 located closer to the outside, facilitating the setting of the button 41 to achieve the switching function. In addition, a part of the outer shell of the charging plug 1 serves as the pressing surface 112 to cooperate with the button 41, which simplifies the switching structure, has a simple structure, is convenient for assembly, and has a low manufacturing cost.

[0031] In this embodiment, the pressing surface 112 is provided with an open-loop groove 113 to form a pressing piece 114. In this way, the pressing piece 114 is more likely to deform under pressure, is easier to press down the button 41, and is more labor-saving to press, providing a good user experience. Preferably, the groove 113 is in a Ω shape, which not only facilitates pressing the pressing piece 114 but also ensures the mechanical strength of the pressing piece 114 and improves the service life.

[0032] In this embodiment, an isolation film 6 covering the groove 113 is provided on the outer wall of the pressing surface 112, which can prevent the molten glue from entering the cavity 11 through the groove 113 during the integral molding process and damaging the PCB board 4.

[0033] In this embodiment, an annular groove 115 is provided on the outer side wall of the cavity 11 on one side of the opening 111, and the plugging terminal 5 is provided with a clamping portion 51 that is snapped into the annular groove 115. The connection between the cavity 11 and the plugging terminal 5 is realized through the annular groove 115 and the clamping portion 51, with a simple structure and convenient assembly. Further, there is a height difference between the outer side wall of the cavity 11 and the outer side wall of the plugging terminal 5. With such a setting, during the injection molding connection process, the height difference causes a clamping structure between the charging handle 3, the cavity 11, and the plugging terminal 5, which is beneficial to improving the connection reliability.

[0034] In this embodiment, a plugging portion 52 for inserting into the opening 111 is provided at the middle position of the plugging terminal 5. After connecting the plugging terminal 5 to the annular groove 115, the plugging portion 52 is also inserted into the opening 111, which not only improves the sealing effect of the housing 11, but also improves the connection stability and reliability between the plugging terminal 5 and the housing 11.

[0035] In this embodiment, a guiding groove 116 is provided in the housing 11, and the PCB board 4 is inserted into the housing 11 along the guiding groove 116. The provision of the guiding groove 116 not only facilitates the installation of the PCB board 4, but also can limit the position of the PCB board 4, improve the installation effect, and prevent the PCB board 4 from having a movable space in the housing 11, thereby avoiding abnormal noise problems during use and reducing the use effect. Preferably, the height of the guiding groove 116 is 0.05 mm to 0.15 mm larger than the thickness of the PCB board 4.

[0036] In this embodiment, a through hole 53 for the wire to pass through is provided on the plugging terminal 5, which can ensure the connection between the PCB board 4 and other electrical components in the housing 11. Setting the through hole 53 on the plugging terminal 5 is more convenient for processing than setting it on the housing 11, and improves the processing efficiency.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation manners of the present invention. 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. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An electric vehicle charging gun, characterized in that: Including charging plug, charging wire, charging handle, PCB board, and blocking terminal; The charging handle is integrally formed, and its two ends are respectively connected to the charging plug and the charging wire; A housing is provided in the charging plug, the housing is provided with an opening extending therethrough, the PCB board is installed in the housing through the opening, and the blocking terminal is connected to the opening; A button is provided on the PCB board, and at least one side wall of the compartment body forms a pressing surface for the shell of the charging plug, and the pressing surface abuts against the button.

2. The electric vehicle charging gun according to claim 1, characterized in that: The pressing surface is provided with an open-loop groove to form a pressing sheet.

3. The electric vehicle charging gun according to claim 2, characterized in that: An isolation film covering the groove is provided on the outer wall of the pressing surface.

4. The electric vehicle charging gun according to claim 2, characterized in that: The groove is Ω-shaped.

5. The electric vehicle charging gun according to claim 1, characterized in that: An annular groove is provided on the outer side wall of the storage body at one side of the opening, and the blocking terminal is provided with a clamping portion clamped into the annular groove.

6. The electric vehicle charging gun according to claim 5, characterized in that: A plug-in portion inserted into the opening is provided at the middle position of the blocking terminal.

7. The electric vehicle charging gun according to claim 1, characterized in that: A guide groove is provided in the bin body, and the PCB board is inserted into the bin body along the guide groove.

8. The electric vehicle charging gun according to claim 7, characterized in that: The height of the guide groove is 0.05 mm to 0.15 mm greater than the thickness of the PCB board.

9. The electric vehicle charging gun according to claim 1, characterized in that: The blocking terminal is provided with a through hole for the wire to pass through.

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