An integrated control box

Abstract

The present application discloses an integrated control box in the field of new energy vehicle charging interface, which includes a terminal structure, a control box body and a circuit board. The terminal structure is plugged into and electrically connected to the circuit board, the circuit board is limitedly located in the control box body, the terminal structure is fixed to the control box body, and one end of the terminal structure is placed in the control box body and positioned and plugged into the circuit board; in the present application, the circuit board and the terminal structure are directly fixedly connected, and normal electrical connectivity is guaranteed, eliminating the connection method of connectors or cables used in conventional structures, reducing the use of manufacturing parts and unnecessary processing steps, and controlling the cost within a small range. Finally, the overall volume of the control box is reduced, effectively realizing the integration of connector equipment, achieving the purpose of compact structure and miniaturization, thereby realizing the lightweight and easy-to-carry experience of AC charging mode II.

Description

Technical Field

[0001] The present application relates to the technical field of charging interfaces for new energy vehicles, and in particular to an integrated control box. Background Art

[0002] AC charging mode 2 usually consists of a charging gun, a control box, and a multi-pin plug, which has problems such as large size, heavy weight, and high cost. There is a method on the market that integrates the control box and the multi-pin plug, that is, the multi-pin plug is built into the control box, which is convenient for lightweight and miniaturization of the product. However, the connection between the multi-pin plug terminal and the circuit board is indirectly connected through a cable or connector, which has the problem of cumbersome and complicated assembly. Therefore, it is necessary to propose an integrated control box. Utility Model Content

[0003] The purpose of the present application is to provide an integrated control box to solve the defects of the control box in the prior art, such as large overall manufacturing volume and high cost.

[0004] In order to solve the above technical problems, this application is implemented by adopting the following technical solutions:

[0005] On the one hand, an integrated control box includes a terminal structure, a control box body, and a circuit board. The terminal structure is plugged into and electrically connected to the circuit board. The circuit board is limitedly positioned in the control box body. The terminal structure is fixed to the control box body. One end of the terminal structure is placed in the control box body and is positioned and plugged into the circuit board.

[0006] According to a further solution of the present application, the terminal structure includes a three-hole plug-in portion, a fixed forming portion and a connecting portion, the three-hole plug-in portion is integrally installed at one end of the fixed forming portion and is placed on the outside of the control box body away from the circuit board, the connecting portion is integrally installed at the other end of the fixed forming portion, and the fixed forming portion is integrally connected to the control box body.

[0007] In a further solution, the three-hole plug-in portion, the fixed forming portion and the connecting portion are arranged in a Z shape, and a reinforcement opening is provided on the fixed forming portion where it is integrally connected with the three-hole plug-in portion.

[0008] According to a further solution of the present application, a U-shaped opening is provided on one side of the circuit board, and the U-shaped opening is matched and fixed with the connecting portion.

[0009] In a further solution, the circuit board is vertically fixed to the inner wall of the control box body, the inner wall of the control box body is provided with at least one pair of first positioning members along the length direction of the circuit board, the inner wall of the control box body is provided with a second positioning member along the thickness direction of the circuit board, the guide margin position of the circuit board is between the corresponding first positioning members, the second positioning member abuts against one side of the circuit board, and the bottom of the control box body is also fixed with a terminal guide structure for guiding the fixed forming part.

[0010] According to a further solution of the present application, the terminal structure includes an interface body and a terminal, the interface body is positioned and clamped in the control box body, the interface body is provided with a mounting port for fixing the terminal, and one end of the terminal is not exposed from the mounting port, and the control box body is also provided with a through groove connected to the mounting port.

[0011] In a further solution, a first clamping body is fixed on the axially opposite side surfaces of the interface body, and a second clamping body is provided on two side walls of the control box body, and the first clamping body is fixed in cooperation with the second clamping body.

[0012] In a further solution, the connection parts on the terminal structure are arranged linearly, and the circuit board is horizontally placed in the control box body and welded to the connection parts.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present application designs a circuit board and a terminal structure that are directly fixedly connected and ensures normal electrical connectivity, thereby eliminating the connection method of connectors or cables used in conventional structures, reducing the use of manufacturing parts and unnecessary processing steps, and keeping costs within a small range. Ultimately, the overall volume of the control box is reduced, effectively realizing the integration of connector equipment, achieving a compact and miniaturized structure, and thus realizing the lightweight and easy-to-carry experience of AC charging mode II.

[0015] The linear design of the connecting part in the terminal structure, combined with the upper U-shaped opening design of the circuit board, realizes the plug-in structure of the circuit board and the connecting part. It is easy to operate and facilitate automated assembly. The device is compact in design and can achieve greater economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of Example 1 of the present application;

[0017] Figure 2 This is a schematic diagram of the structure of the terminal in Example 1 of the present application;

[0018] Figure 3 This is a schematic diagram of the structure after the terminal structure and the control box body are assembled in Example 1 of the present application;

[0019] Figure 4 This is a schematic diagram of the control box body in Example 1 of the present application;

[0020] Figure 5 This is a schematic diagram of the structure of the circuit board in Example 1 of the present application;

[0021] Figure 6 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0022] Figure 7 This is an exploded view of Example 2 of the present application;

[0023] Figure 8 This is a schematic diagram of the structure of the terminal in Example 2 of the present application;

[0024] Fig. 9 This is a schematic diagram of the installation of the terminal structure in Example 2 of the present application;

[0025] Fig.10 This is a schematic diagram of the installation of the terminal structure and circuit board of Example 2 of the present application.

[0026] in

[0027] 100, terminal structure; 101, three-hole plug-in part; 102, fixed forming part; 103, connecting part; 1001, interface body; 1002, installation port; 1003, first card-connecting body; 200, control box body; 201, terminal guide structure; 202, first positioning member; 203, second positioning member; 204, through groove; 205, second card-connecting body; 300, circuit board; 301, guide edge; 302, U-shaped mouth; 500, terminal; 501, welding part. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Example 1

[0029] Reference Figure 1 In this embodiment, an integrated control box is disclosed, which includes a terminal structure 100, a control box body 200 and a circuit board 300. The terminal structure 100 is plugged into and electrically connected with the circuit board 300. The circuit board 300 is limitedly positioned in the control box body 200. The terminal structure 100 is fixed to the control box body 200. One end of the terminal structure 100 is placed in the control box body 200 and is positioned and plugged with the circuit board 300.

[0030] After the control box body 200 and the circuit board 300 are positioned and plugged in, the terminal structure 100 and the circuit board 300 are firmly fixed by spot welding. The structure avoids the use of cables and unnecessary connectors to connect the terminal structure 100 and the circuit board 300. The structural strength of the product is improved while the volume is effectively reduced.

[0031] The present embodiment will be described below in conjunction with the accompanying drawings.

[0032] Reference Figure 2 and 3 In this embodiment, the three-eye plug-in portion 101, the fixed molding portion 102 and the connecting portion 103 are arranged in a Z shape, and a reinforcement opening is provided at the portion where the fixed molding portion 102 is integrally connected with the three-eye plug-in portion 101. When the control box body 200 in this embodiment is produced, the fixed molding portion 102 and the control box body 200 are directly integrally injection molded, wherein the design of the reinforcement opening (notch) can increase the fixing area of ​​the fixed molding portion 102, increase the use strength after injection molding, and enhance the service life.

[0033] Reference Figure 5 and 6 In this embodiment, a U-shaped opening 302 is provided at the edge of the circuit board 300, and the U-shaped opening 302 is matched and fixed with the connecting portion 103, wherein a chamfer is provided at the end side of the connecting portion 103 to facilitate the matching and guiding installation of the circuit board 300.

[0034] Reference Figure 3 , 4 6. In this embodiment, the circuit board 300 is vertically fixed to the inner wall of the control box body 200. The inner wall of the control box body 200 is provided with at least one pair of first positioning members 202 along the length direction of the circuit board 300. The inner wall of the control box body 200 is provided with a second positioning member 203 along the thickness direction of the circuit board 300. The guide edge 301 of the circuit board 300 is limited between the corresponding first positioning members 202. The second positioning member 203 abuts against one side of the circuit board 300. The bottom of the control box body 200 shell is also fixed with a terminal guide structure 201 for guiding and fixing the molding part 102. The U-shaped opening 302 and the connecting part 103 are inserted into each other along the axial direction of the terminal structure 100, and the connection is achieved by welding or other reasonable connection methods.

[0035] In this embodiment, the terminal structure 100 will expose the connecting portion 103 after injection molding with the control box body 200, which can be directly connected to the circuit board 300, reducing the overall volume of the device; the U-shaped opening 302 of the circuit board 300 is in an open form and is directly plugged into the connecting portion 103 of the terminal structure 100, which is easy to operate and facilitates automated assembly. Example 2

[0036] Reference Figure 7In this embodiment, another integrated control box is disclosed, which includes a terminal structure 100, a control box body 200 and a circuit board 300. The terminal structure 100 is plugged into and electrically connected with the circuit board 300. The circuit board 300 is limitedly positioned in the control box body 200. The terminal structure 100 is fixed to the control box body 200. One end of the terminal structure 100 is placed in the control box body 200 and is positioned and plugged with the circuit board 300.

[0037] Reference Figure 8 , wherein the terminal structure 100 of this embodiment has been changed, the terminal structure 100 includes an interface body 1001 and a terminal 500, wherein the terminal 500 and the interface body 1001 are installed as a whole, the interface body 1001 is positioned and connected to the control box body 200, and the interface body 1001 can be replaced as a whole when necessary to control the user's use cost, the interface body 1001 is provided with a mounting port 1002 for fixing the terminal 500, and one end of the terminal 500 does not expose the mounting port 1002, which is the interface end of the device, and the control box body 200 is also provided with a connecting mounting port 1002. The through slot 204 of the port 1002 provides a connection channel for the device; wherein the terminal 500 in this embodiment includes two types of terminals, namely, current-carrying terminals and signal terminals, and the two types of terminals are used as inserts and are integrally injection-molded with the interface body 1001; the front sections of the two types of terminals are contact parts, the middle sections are injection-molded parts embedded in the interface body 1001, and the rear ends are welding parts 501; the circuit board 300 and the welding parts 501 of the current-carrying terminals are fixed by soldering, and the welding parts 501 of the signal terminals are connected to the low-voltage connection; the contact parts of the current-carrying terminals and the signal terminals are placed in the installation port 1002.

[0038] Reference Figure 2 and 9 In this embodiment, a first card body 1003 is fixed on the axially opposite side of the interface body 1001, and a second card body 205 is provided on the two side walls of the control box body 200. The first card body 1003 is fixed with the second card body 205, wherein the second card body 205 is provided with a card slot. If necessary, the slot size of the card slot is designed to be gradual to increase the stability of the structure.

[0039] In addition, the connection part 103 or the welding part 501 on the terminal structure 100 is arranged linearly, and the circuit board 300 is horizontally placed in the control box body 200 and welded to the connection part 103 or the welding part 501.

[0040] In this embodiment, the terminal structure 100 is designed to be detachable, which is convenient for later maintenance. At the same time, it has the advantages of the previous embodiment and has high economic benefits. Example 3

[0041] Based on the above embodiments, this embodiment provides a connection method of an integrated control box, comprising the steps of:

[0042] 1) The terminal structure 100 and the control box body 200 are integrally connected, and the connecting portion 103 in the terminal structure 100 is arranged perpendicular to the mounting surface of the terminal structure 100 of the control box body 200;

[0043] 2) A U-shaped opening 302 is opened on the circuit board 300 , and the connecting portion 103 is placed in the U-shaped opening 302 and fixed by welding.

[0044] Also includes the steps,

[0045] A reinforcement opening is also provided on the fixed molding portion 102 of the terminal structure 100 , and the fixed molding portion 102 is fixed to the control box body 200 by injection molding.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 on the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

Claims

1. An integrated control box, characterized in that: The invention comprises a terminal structure (100), a control box body (200) and a circuit board (300), wherein the terminal structure (100) is plugged into and electrically connected with the circuit board (300), the circuit board (300) is limitedly positioned in the control box body (200), the terminal structure (100) is fixed to the control box body (200), and one end of the terminal structure (100) is placed in the control box body (200) and is plugged into the circuit board (300) in a fixed position; The terminal structure (100) comprises a three-hole plug-in portion (101), a fixed forming portion (102) and a connecting portion (103); the three-hole plug-in portion (101) is integrally mounted on one end of the fixed forming portion (102) and is placed on the outside of the control box body (200) away from the circuit board (300); the connecting portion (103) is integrally mounted on the other end of the fixed forming portion (102); the fixed forming portion (102) is integrally connected to the control box body (200); a U-shaped opening (302) is provided on one side of the circuit board (300); the U-shaped opening (302) is matched and fixed with the connecting portion (103).

2. The integrated control box according to claim 1, characterized in that: The three-hole plug-in portion (101), the fixed forming portion (102) and the connecting portion (103) are arranged in a Z shape, and a reinforcement opening is provided at a portion of the fixed forming portion (102) where it is integrally connected to the three-hole plug-in portion (101).

3. The integrated control box according to claim 2, characterized in that: The circuit board (300) is vertically fixed to the inner wall of the control box body (200); the inner wall of the control box body (200) is provided with at least one pair of first positioning members (202) along the length direction of the circuit board (300); the inner wall of the control box body (200) is provided with a second positioning member (203) along the thickness direction of the circuit board (300); the guide edge (301) of the circuit board (300) is limitedly positioned between the corresponding first positioning members (202); the second positioning member (203) abuts against one side of the circuit board (300); and a terminal guiding structure (201) for guiding the fixed forming portion (102) is also fixed to the shell bottom of the control box body (200).

4. The integrated control box according to claim 1, characterized in that: The terminal structure (100) comprises an interface body (1001) and a terminal (500); the interface body (1001) is positioned and clamped in the control box body (200); the interface body (1001) is provided with a mounting opening (1002) for fixing the terminal (500), and one end of the terminal (500) does not expose the mounting opening (1002); and the control box body (200) is also provided with a through slot (204) communicating with the mounting opening (1002).

5. The integrated control box according to claim 4, characterized in that: A first clamping body (1003) is fixed on the axially opposite side faces of the interface body (1001), and a second clamping body (205) is provided on the two side walls of the control box body (200), and the first clamping body (1003) and the second clamping body (205) are matched and fixed.

6. The integrated control box according to claim 4, characterized in that: The connecting parts (103) on the terminal structure (100) are arranged linearly, and the circuit board (300) is horizontally placed in the control box body (200) and welded to the connecting parts (103).

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