A control box

Abstract

This application discloses a control box in the field of new energy vehicle charging interfaces, which includes a control box housing, current-carrying terminals, and a circuit board. A first positioning body is provided inside the control box housing. The current-carrying terminal includes a main body, with wiring portions and welding portions on both sides of the main body. The wiring portions deform to connect with a cable. A second positioning body is provided on the circuit board. The welding portions are oriented to the first and second positioning bodies. In this application, the control box terminals are designed with wiring portions and welding portions. During use, the wiring portions can press the cable, and one end of the welding portion connects to the groove of the housing, thus fixing the terminal. Mechanized operations are used to press the circuit board and welding portions together and perform welding operations. No manual intervention is required during the circuit board and welding process, achieving automated assembly, improving production efficiency, reducing manual assembly time, ensuring installation strength, and greatly accelerating production efficiency.

Description

Technical Field

[0001] This application relates to the field of new energy vehicle charging interface technology, specifically to a control box. Background Technology

[0002] The current-carrying terminals for connecting existing circuit boards and cables are divided into two categories. Some use insert spring terminals for current transmission, which are costly, have poor connection reliability, and high connection resistance. Others use soldered terminals, but existing soldered terminals have unreasonable structural design and are complicated to install when soldered to the circuit board. They require manual fixing, which makes them highly dependent on manual labor, resulting in high production costs and low production efficiency. Utility Model Content

[0003] The purpose of this application is to provide a control box to solve the defects of poor reliability and low production efficiency of conventional circuit board installation.

[0004] To achieve the above objectives, this application employs the following technical solution:

[0005] This application discloses a control box, which includes a control box housing, current-carrying terminals, and a circuit board;

[0006] The control box housing is provided with a first positioning body;

[0007] The current-carrying terminal includes a main body, and the main body is provided with a wiring part and a welding part on both sides. The wiring part is deformed to achieve connection with the cable.

[0008] The circuit board is provided with a second positioning element;

[0009] The welded part is oriented to the first positioning body and the second positioning body.

[0010] In a further embodiment of this application, the wiring portion and the welding portion are staggered.

[0011] In a further embodiment of this application, a positioning piece is provided on one side of the welded portion, and the positioning piece has a height difference with the side wall of the welded portion.

[0012] In a further embodiment of this application, a limiting piece is provided on the wiring portion, and the limiting piece is arranged in the same direction as the opening of the wiring portion.

[0013] In a further embodiment of this application, the main body, the wiring portion, and the welding portion are manufactured as a single unit.

[0014] In a further embodiment, the first positioning body includes a first mounting groove and a positioning groove, the positioning groove being located on one side of the first mounting groove, and the positioning piece being placed in the positioning groove.

[0015] In a further embodiment, there are multiple first mounting slots arranged linearly.

[0016] In a further embodiment of this application, the second positioning body includes a second mounting groove, which is disposed on the circuit board, and the soldering part is inserted into the second mounting groove.

[0017] In a further embodiment, the welding section is also provided with a limiting area for limiting the circuit board.

[0018] The beneficial effects of this application are as follows:

[0019] The control box in this application is designed with a wiring section and a soldering section. In use, the wiring section can clamp the cable, and one end of the soldering section connects to the groove of the housing. At this time, the terminal is fixed. The circuit board and the soldering section are clamped by mechanized operation and the soldering operation is performed. No manual intervention is required during the circuit board and soldering process, realizing automated assembly, improving production efficiency, reducing manual assembly time, ensuring installation strength (improving installation reliability), and greatly accelerating production efficiency.

[0020] The welding section is also equipped with a positioning plate, which facilitates the positioning and installation of the welding section and the housing when the welding section is fixed in the housing, ensuring the accuracy of installation and improving production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the current-carrying terminal in Embodiment 1 of this application;

[0022] Figure 2 This is a schematic diagram of the terminal installation in Embodiment 2 of this application;

[0023] Figure 3 This is a schematic diagram of the installation structure of the welding part and the first mounting groove in Embodiment 2 of this application;

[0024] Figure 4 This is a schematic diagram showing the connection between the circuit board and terminals in Embodiment 2 of this application;

[0025] in:

[0026] 100. Main body; 101. Wiring part; 102. Positioning piece; 103. Welding part; 104. Limiting piece; 200. Control box housing; 300. Cable; 400. Circuit board; 201. First mounting slot; 202. Positioning slot; 401. Second mounting slot. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Example 1

[0028] like Figures 1 to 4 As shown, this embodiment discloses a current-carrying terminal, which includes a main body 100, wherein the main body 100 is provided with a wiring portion 101 and a welding portion 103. The wiring portion 101 is deformable to press the cable 300, and the welding portion 103 is used for positioning and mounting on the control box housing 200. The mounting surfaces of the wiring portion 101 and the welding portion 103 are vertically arranged in space to facilitate the installation of the terminal. The wiring portion 101 and the welding portion 103 are located on both sides of the main body 100. In this embodiment, the wiring portion 101, the welding portion 103 and the main body 100 are all integrally formed.

[0029] Continue to observe the appendix Figure 1 In this embodiment, the main body 100 is inclined to facilitate the processing of the terminal integral molding. The connection surfaces of the wiring part 101, the welding part 103 and the main body 100 are smoothly connected. There are no burrs or other protruding structures on the connection surfaces between the three, and the connection surfaces are smooth to prevent accidental injury to operators and cables 300.

[0030] The connector 101 mainly uses two plate-shaped locking strips to secure the cable 300. In use, the cable 300 is placed between the two locking strips, and then the locking strips are wrapped around the wire core. The connector 101 can be modified in structure to meet crimping or welding process requirements, thus adapting to cables 300 of different diameters.

[0031] In a further embodiment, a positioning piece 102 is provided on one side of the welding part 103. The positioning piece 102 has a height difference with the side wall of the welding part 103, which facilitates the quick and accurate installation of the terminals. A limiting area is also provided on the welding part 103. This limiting area is a right-angle notch opened at the right angle of the welding part 103. When the welding part docks with the circuit board 400, the circuit board 400 and the bottom of the notch make contact and limit the circuit board 400, ensuring that the circuit board 400 is installed flat. Example 2

[0032] As attached Figure 2 and 3As shown, this embodiment provides a control box, which includes the current-carrying terminal, control box housing 200, and circuit board 400 as described in Embodiment 1 above. The control box housing 200 has a first mounting groove 201. The wiring part 101 deforms and crimps the cable 300 into the wire core inside the control box housing 200. One end of the welding part 103 away from the limiting area is inserted into the first mounting groove 201. The circuit board 400 has a second mounting groove 401. This second mounting groove 401 is a through groove and can be collectively referred to as the second positioning body. The other end of the welding part 103 is inserted into the second mounting groove 401. After the terminal, cable 300, and control box housing 200 are fixed, the circuit board 400 can be press-fitted into the control box housing and pre-fixed with the welding part 103 using mechanized production. Subsequently, a robotic arm is used for welding (soldering), eliminating the need for manual welding assistance, realizing automated operation, improving work efficiency and docking reliability.

[0033] As attached Figure 3 As shown, in this embodiment, a positioning groove 202 is provided on the side wall of the first mounting groove 201. The positioning groove 202 matches the position of the positioning piece 102. The positioning groove 202 and the first mounting groove 201 are collectively referred to as the first positioning body. The first positioning body, the second positioning body, and the welding part 103 are connected. Normally, a cable has three wire cores, namely the neutral wire, the live wire, and the ground wire. When connecting the cable, three terminals and the circuit board 400 need to be connected. Three first mounting grooves 201 are linearly arranged, and the positioning grooves 202 on the three first mounting grooves 201 are arranged in the same direction. At this time, the design of the positioning groove 202 and the positioning piece 102 can quickly achieve the consistency of the direction of the three terminals. In actual installation, it can also prevent the main body 100 from being misaligned, which helps to improve the reliability of the final connection of the terminals.

[0034] Appendix Figure 2 As shown, when the wiring part 101 connects each core of the cable, the wire will leave a certain length. When fixing, the wire core will be raised. At this time, the limiting piece 104 on the main body 100 can press down the wire core in this part.

[0035] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A control box, characterized in that, Includes a control box housing (200), current-carrying terminals, and a circuit board (400); The control box housing (200) is provided with a first positioning body; The current-carrying terminal includes a main body (100), and the main body (100) has a wiring part (101) and a welding part (103) on both sides. The wiring part (101) is deformed to achieve connection with the cable (300). The circuit board (400) is provided with a second positioning body; The welding part (103) is oriented to the first positioning body and the second positioning body.

2. The control box according to claim 1, characterized in that, The wiring part (101) and the welding part (103) are staggered.

3. The control box according to claim 1, characterized in that, A positioning piece (102) is provided on one side of the welding part (103), and the positioning piece (102) has a height difference with the side wall of the welding part (103).

4. The control box according to claim 1, characterized in that, The wiring part (101) is provided with a limiting piece (104), and the limiting piece (104) is arranged in the same direction as the opening of the wiring part (101).

5. The control box according to claim 1, characterized in that, The main body (100), the wiring part (101), and the welding part (103) are manufactured as a single unit.

6. The control box according to claim 3, characterized in that, The first positioning body includes a first mounting groove (201) and a positioning groove (202). The positioning groove (202) is located on one side of the first mounting groove (201), and the positioning piece (102) is placed in the positioning groove (202).

7. The control box according to claim 1, characterized in that, The second positioning body includes a second mounting groove (401), which is disposed on the circuit board (400), and the soldering part (103) is inserted into the second mounting groove (401).

8. The control box according to any one of claims 1 to 7, characterized in that, The welding part (103) is also provided with a limiting area for limiting the circuit board (400).

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