Terminal connection structure and charging box

Abstract

The present application discloses a terminal connection structure and a charging box in the field of new energy vehicle charging interface. The terminal connection structure includes a wiring terminal, a circuit board and a charging cable. The wiring terminal includes a connector and a positioning body that are fixedly connected to each other. The connector is locked and fixed to the charging cable, and the positioning body is fixedly installed on the circuit board. The wiring terminal is electrically connected to the circuit board and the charging cable. In the present application, a connection terminal with a connector and a positioning body is designed, which cooperates to connect the charging cable and the circuit board. The positioning body is slidably engaged with the circuit board, and is spot welded and fixed in actual production to avoid the use of large terminal rows and terminal seats. The designed connection terminal itself has a fixing ability and does not need to be fastened with screws. While ensuring the connection strength, the volume of the overall structure is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of charging interfaces for new energy vehicles, and in particular to a terminal connection structure and a charging box. Background Art

[0002] At present, circuits with rated current of 16A or above are usually connected to circuit boards by terminal blocks or terminal blocks. After the cables are crimped with copper tube terminals, they are fixed to the terminal blocks or terminal blocks at the board end by screws. On the one hand, the terminal blocks or terminal blocks occupy space on the circuit board and have high manufacturing costs. Utility Model Content

[0003] The purpose of the present application is to provide a terminal connection structure and a charging box to solve the defects of the prior art that a terminal seat or a terminal block is used in conjunction with screws to install the circuit in the device circuit, resulting in a large installation space 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, a terminal connection structure includes a wiring terminal, a circuit board and a charging cable, the wiring terminal includes a connector and a positioning body fixedly connected to each other, the connector is locked and fixed to the charging cable, the positioning body is slidably engaged with the circuit board, and the wiring terminal is electrically connected to the circuit board and the charging cable.

[0006] According to a further solution of the present application, ribs are provided on the surface of the connector.

[0007] In a further solution, the positioning body includes a welding plate and a first limiting member, the welding plate is integrally installed with the connecting body, the connecting body hinge fixes the charging cable, a U-shaped pad is provided on the circuit board, the welding plate is slidably arranged in the U-shaped pad, the first limiting member is limited to an auxiliary hole on the circuit board, and the welding plate is welded to the U-shaped pad.

[0008] According to a further solution, the connector includes a first crimping portion, wherein a first wing and a second wing are extended at intervals from the first crimping portion, the first wing and the second wing are bent relative to each other to form a locking space with the first crimping portion, and the rib is fixed to the first wing and the second wing and the locking surface of the first crimping portion.

[0009] In a further solution, the first limiting member and the second wing are arranged in a vertical direction.

[0010] According to a further solution of the present application, the positioning body includes a welding plate and a second limiting member, the welding plate is fixedly welded to the connecting body, the connecting body includes a one-way bend to fix the charging cable, a U-shaped pad is provided on the circuit board, the welding plate is slidably arranged in the U-shaped pad, the first limiting member is limited to an auxiliary hole on the circuit board, and the welding plate is welded to the U-shaped pad.

[0011] According to a further solution, the connector includes a second crimping portion and a third wing, wherein the third wing is fixedly connected to the second crimping portion, the third wing is bent toward the second crimping portion to form a locking space at the second crimping portion, and the rib is fixed on the locking surfaces of the third wing and the second crimping portion.

[0012] In a further solution, the second limiting member is arranged in parallel with the third wing.

[0013] On the other hand, a charging box includes the above-mentioned terminal connection structure and a shell, the terminal connection structure is fixedly installed in the shell, and the charging cable is placed outside the shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the present application, a connecting terminal with a connecting body and a positioning body is designed, which cooperates to connect a charging cable and a circuit board, wherein the positioning body and the circuit board are slidably engaged, and the setting of the positioning body can well position the connection position of the charging cable, and spot welding is performed in actual production to avoid the use of larger terminal blocks and terminal seats. The designed connecting terminal itself has fixing ability and does not need to be fastened with screws. While ensuring the connection strength, the volume of the overall structure is greatly reduced.

[0016] In addition, the limiting parts in the connecting terminals in the structure are used in conjunction with the auxiliary holes on the circuit board to install (fix) the charging cable. At this time, the circuit board can be spot welded, which reduces the difficulty of connection and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the structure of the terminal in Example 1 of the present application;

[0019] Figure 3 This is a schematic diagram of the terminal structure in Example 2 of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the circuit board in Example 1 of the present application.

[0021] in

[0022] 100, terminal block; 101, welding piece; 102, first stopper; 103, first crimping portion; 104, second stopper; 105, second crimping portion; 1031, first wing; 1032, second wing; 1033, rib; 1034, third wing; 200, circuit board; 201, U-shaped pad; 202, auxiliary hole; 300, charging cable. DETAILED DESCRIPTION

[0023] 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

[0024] Reference Figure 1 In this embodiment, a terminal connection structure is disclosed, including a wiring terminal 100, a circuit board 200 and a charging cable 300. The wiring terminal 100 includes a connector and a positioning body that are fixedly connected to each other. The connector is locked and fixed to the charging cable 300, and the positioning body is fixedly installed on the circuit board 200. The wiring terminal 100 is electrically connected to the circuit board 200 and the charging cable 300.

[0025] When in use, the connector on the terminal block 100 and the charging cable 300 are locked and fixed, and then the positioning body is placed on the circuit board 200, and the two are firmly fixed by spot welding or soldering, while ensuring that the electrical connection between the terminal block 100, the circuit board 200 and the charging cable 300 is ensured.

[0026] Combined with Figure 2 and 3 The positioning body in this embodiment includes a welding piece 101 and a first limiting piece 102. The welding piece 101 is integrally installed with the connector. The connector fixes the charging cable 300 by a hinge. An auxiliary hole 202 is provided on the circuit board 200. The first limiting piece 102 and the auxiliary hole 202 are pre-connected. In addition, considering the welding stability of the terminal block 100 and the circuit board 200 and the further reduction of the structural volume, a U-shaped pad 201 is installed on the circuit board 200 next to the auxiliary hole 202. At this time, the welding piece 101 is placed in the U-shaped pad 201 for welding, and the welding is more accurate and safe.

[0027] The connector includes a first crimping portion 103, a first wing 1031, and a second wing 1032. The first wing 1031 and the second wing 1032 are side pieces bent and extended on both sides of the first crimping portion 103, and are integrally stamped and formed with the first crimping portion 103. The first wing 1031 and the second wing 1032 are arranged in parallel.

[0028] When in use, the second wing 1032 and the first wing 1031 are bent toward the first crimping portion 103. At this time, the charging cable 300 is prevented from being inserted into the space formed by the three. Continuing to apply pressure on the second wing 1032 and the first wing 1031 can fix the charging cable 300. In this embodiment, the first limit member 102 and the second wing 1032 are spatially arranged at 90°. Example 2

[0029] The present embodiment discloses a terminal connection structure, including a wiring terminal 100, a circuit board 200 and a charging cable 300. The wiring terminal 100 includes a connector and a positioning body that are fixedly connected to each other. The connector is locked and fixed to the charging cable 300. The positioning body is fixedly installed to the circuit board 200. The wiring terminal 100 is electrically connected to the circuit board 200 and the charging cable 300.

[0030] The positioning body includes a welding piece 101 and a second limiting piece 104 . The welding piece 101 is fixedly welded to the connecting body. The connecting body includes a one-way bending fixed charging cable 300 . The second limiting piece 104 is limited to the auxiliary hole 202 on the circuit board 200 .

[0031] Reference Figure 3 The connector structure of the terminal block 100 in this embodiment is different from that in Embodiment 1. In this embodiment, the connector includes a second crimping portion 105 , and a third wing 1034 is integrally bent and extended at one end of the second crimping portion 105 away from the welding piece 101 .

[0032] When in use, the charging cable 300 is placed in a locking area formed by the third wing 1034 being bent toward the second crimping portion 105 and the second crimping portion 105, and pressure is applied to the third wing 1034 to fix the charging cable 300. During production, the third wing 1034 may be made of a material with strong plasticity. When fixing the charging cable 300, the third wing 1034 is rolled up to fix the core of the charging cable 300. At this time, the second limiting member 104 is arranged in parallel with the third wing 1034. The relative arrangement of the second limiting member 104 and the corresponding wing in the two embodiments needs to be beneficial to the user to tighten the wing under force.

[0033] What is meant to be explained here is that, regardless of embodiment 1 or embodiment 2, a plurality of ribs 1033 are arranged at intervals and in parallel on the locking surface of the locking space of both embodiments, so as to increase the fastening degree of the charging cable 300 and improve the connection strength. Example 3

[0034] This embodiment discloses a charging box, which includes the terminal connection structure and a shell of the above-mentioned embodiment 1 or embodiment 2, the terminal connection structure is fixedly installed in the shell, and the charging cable 300 is partially placed outside the shell.

[0035] For specific installation, taking Example 1 as an example, the core of the charging cable 300 is fixed by pressing the first wing 1031 and the second wing 1032, and then the welding piece 101 of the terminal 100 is aligned with the U-shaped pad 201 of the circuit board 200; the first stopper 102 of the terminal 100 (the first stopper 102 is designed as a hook shape) can fall into the auxiliary hole 202 of the circuit board 200, and the terminal 100 is pre-positioned on the circuit board 200; the terminal 100 is permanently connected to the circuit board 200 by soldering. This connection structure has strong stability, the overall volume of the structure is effectively reduced, and the installation efficiency is improved.

[0036] 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.

[0037] 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. A terminal connection structure, characterized in that: The invention comprises a connection terminal (100), a circuit board (200) and a charging cable (300); the connection terminal (100) comprises a connector and a positioning body which are fixedly connected to each other; the connection body is locked and fixed to the charging cable (300); the positioning body is slidably engaged with the circuit board (200); and the connection terminal (100) is electrically connected to the circuit board (200) and the charging cable (300).

2. The terminal connection structure according to claim 1, characterized in that: The positioning body comprises a welding sheet (101) and a first limiting member (102); the welding sheet (101) is integrally mounted with the connecting body; the connecting body hinge fixes the charging cable (300); a U-shaped soldering pad (201) is provided on the circuit board (200); the welding sheet (101) is slidably arranged in the U-shaped soldering pad (201); the first limiting member (102) is limited to an auxiliary hole (202) on the circuit board (200); and the welding sheet (101) is welded to the U-shaped soldering pad (201).

3. The terminal connection structure according to claim 2, characterized in that: The connector comprises a first crimping portion (103), wherein the first crimping portion (103) crimps the charging cable (300) in multiple directions.

4. The terminal connection structure according to claim 1, characterized in that: The positioning body comprises a welding sheet (101) and a second limiting member (104); the welding sheet (101) is fixedly welded to the connecting body; the connecting body is bent in one direction to fix the charging cable (300); a U-shaped soldering pad (201) is provided on the circuit board (200); the welding sheet (101) is slidably arranged in the U-shaped soldering pad (201); the second limiting member (104) is limitedly positioned in an auxiliary hole (202) on the circuit board (200); and the welding sheet (101) is welded to the U-shaped soldering pad (201).

5. The terminal connection structure according to claim 4, characterized in that: The connecting body comprises a second crimping portion (105), and the second crimping portion (105) is crimped to the charging cable (300) in one direction.

6. A charging box, characterized in that: It comprises the terminal connection structure according to any one of claims 1 to 5 and a housing, wherein the terminal connection structure is fixedly installed in the housing, and the charging cable (300) is placed outside the housing.

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