Wiring terminal copper bar and high-voltage power distribution unit

Abstract

The utility model belongs to the technical field of circuit connection, and discloses a wiring terminal copper bar and a high-voltage power distribution unit. The wiring terminal copper bar comprises a copper bar body and a limiting structure, a bolt hole is formed in the copper bar body, a terminal comprises an assembling part and a connecting part which are connected with each other, the assembling part is connected to the bolt hole through a bolt, and the connecting part is connected with a wiring harness; the limiting structure is arranged on the copper bar body, the limiting structure is provided with a limiting channel used for containing the connecting part, and the limiting channel is configured to limit the rotation range of the connecting part around the axis of the bolt hole. The high-voltage power distribution unit adopts the wiring terminal copper bar, so that the terminal and the copper bar body can be quickly positioned and assembled, and meanwhile, the terminal can be prevented from being excessively swung in the mounting process to damage a wiring harness, so that the safety and the reliability in the operation process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit connection, in particular to a wiring terminal copper bar and a high-voltage power distribution unit. Background Art

[0002] With the rapid popularization of new energy vehicles, high-voltage power distribution units (PDUs), as core components in the high-voltage systems of new energy vehicles, have gradually become well-known to the public. The function of the high-voltage distribution unit is to distribute and manage power in the high-voltage systems of new energy vehicles, and provide charging and discharging control, power-on control of high-voltage components, and circuit overload and short-circuit protection for the entire vehicle. There are many locations inside the high-voltage distribution unit where wiring harness terminals are required to connect to copper busbars to achieve circuit connectivity. Common wiring harness terminals are mostly connected to copper busbars using bolts. However, when connecting the terminals to the copper busbars, due to the limitations of the operating scenario, it is difficult to align the connection holes on the terminals with the openings on the copper busbars. Moreover, when the staff tightens the bolts, the terminals are squeezed by the bolt heads and rotate with the bolts, causing the wiring harness connected to the terminals to be stressed and causing the connection between the two to deform, ultimately making the wiring harness extremely susceptible to damage. Utility Model Content

[0003] The purpose of the utility model is to provide a wiring terminal copper bar and a high-voltage distribution unit, which can prevent the terminal from damaging the wiring harness during installation and have a simple structure, safety and reliability.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Terminal copper busbar, including:

[0006] A copper busbar body, wherein a bolt hole is formed on the copper busbar body, and the terminal comprises an assembly portion and a connection portion connected to each other, wherein the assembly portion is connected to the bolt hole via a bolt, and the connection portion is connected to the wiring harness;

[0007] A limiting structure is provided on the copper busbar body, and the limiting structure has a limiting channel for accommodating the connecting portion, and the limiting channel is configured to limit the rotation range of the connecting portion around the axis of the bolt hole.

[0008] Preferably, the limiting structure includes a first blocking arm and a second blocking arm spaced apart from each other, wherein the first blocking arm and the second blocking arm are respectively connected to the copper busbar body;

[0009] The limiting channel is formed between the first blocking arm and the second blocking arm, and the connecting portion can abut against the first blocking arm or the second blocking arm when rotating around the axis of the bolt hole.

[0010] Preferably, a positioning baffle is provided on each of the first baffle arm and the second baffle arm. When the assembly portion is connected to the copper busbar body, the connection portion abuts against the positioning baffle in a direction close to the bolt hole.

[0011] Preferably, the terminal copper bar further includes a positioning member, which is provided on the limiting structure, and the connecting portion in the limiting channel can abut against the positioning member along the axial direction of the bolt hole.

[0012] Preferably, the positioning member has a rotating end and a clamping end, the rotating end is rotatably connected to the limiting structure on one side of the limiting channel, and the clamping end can be clamped to the limiting structure on the other side of the limiting channel.

[0013] Preferably, the copper busbar body includes a first splicing plate, a second splicing plate and a connecting plate, the bolt holes and the limiting structure are respectively arranged on the first splicing plate, the first splicing plate and the second splicing plate are parallel and spaced apart in the thickness direction, and the connecting plate is connected between the first splicing plate and the second splicing plate.

[0014] Preferably, the first splicing plate, the connecting plate and the second splicing plate are integrally formed.

[0015] Preferably, the copper busbar body is provided with a connecting through hole for the bolt to pass through.

[0016] Preferably, the limiting structure and the copper busbar body are integrally formed.

[0017] A high-voltage power distribution unit comprises a wiring harness, a terminal and the above-mentioned terminal copper bar, wherein the wiring harness is connected to the copper bar body through the terminal.

[0018] The beneficial effects of the present invention are:

[0019] The utility model provides a copper busbar with a terminal block, on which a bolt hole is provided, wherein the connecting portion of the terminal is connected to the wiring harness, and the assembly portion of the terminal is connected to the bolt hole by a bolt, so that the wiring harness is detachably connected to the copper busbar body through the terminal; since a limiting structure is provided on the copper busbar body, the limiting structure has a limiting channel for accommodating the connecting portion, so when connecting the terminal, the limiting structure can enable the assembly portion of the terminal to be quickly aligned with the bolt hole, thereby facilitating connection, and the limiting structure can enable the wiring harness and the terminal to extend in a straight line and be installed on the copper busbar body; since the limiting channel can limit the rotation range of the connecting portion around the axis of the bolt hole, when tightening the bolt, the limiting channel can prevent the terminal from swinging excessively following the rotation of the bolt, so as to prevent the terminal and the wiring harness from being bent and deformed due to stress, thereby ensuring the safety and reliability of the operation of the entire high-voltage distribution unit.

[0020] The high-voltage power distribution unit provided by the utility model includes a wiring harness and a terminal, and adopts the above-mentioned wiring terminal copper busbar, which can realize the rapid positioning and assembly of the terminal and the copper busbar body, and at the same time prevent the terminal from damaging the wiring harness due to excessive swinging during the installation process, thereby improving the safety and reliability during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the assembly of the copper busbar of the terminal block provided by the specific embodiment of the present utility model;

[0022] Figure 2 It is a top view of the copper busbar body provided by a specific embodiment of the present utility model.

[0023] In the picture:

[0024] 100-terminal; 110-assembly portion; 120-connection portion;

[0025] 200-bolts;

[0026] 300-wiring harness;

[0027] 1-copper busbar body; 11-bolt hole; 12-first splicing plate; 13-second splicing plate; 14-connecting plate; 15-connecting through hole;

[0028] 2-limiting structure; 21-limiting channel; 22-first stop arm; 23-second stop arm; 24-positioning baffle. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0030] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0033] like Figure 1 As shown, the utility model provides a copper busbar with a terminal block, which includes a copper busbar body 1 and a limiting structure 2. A bolt hole 11 is provided on the copper busbar body 1. The terminal 100 includes an assembly portion 110 and a connecting portion 120 connected to each other. The assembly portion 110 is connected to the bolt hole 11 by a bolt 200, and the connecting portion 120 is connected to the wiring harness 300; the limiting structure 2 is provided on the copper busbar body 1, and the limiting structure 2 has a limiting channel 21 for accommodating the connecting portion 120. The limiting channel 21 is configured to limit the rotation range of the connecting portion 120 around the axis of the bolt hole 11. In this embodiment, the wiring harness 300 is connected to the copper bus body 1 through the terminal 100, and the copper bus body 1 is connected to the connector of the high-voltage distribution unit to realize current conduction of the high-voltage distribution unit; the limiting channel 21 is arranged along the extension direction of the wiring harness 300, and the limiting channel 21 is directly opposite the bolt hole 11, so when connecting the terminal 100, the limiting structure 2 can enable the assembly part 110 of the terminal 100 to be quickly aligned with the bolt hole 11, thereby facilitating connection, and the limiting structure 2 can enable the wiring harness 300 and the terminal 100 to extend in a straight line and be installed on the copper bus body 1; because the limiting channel 21 can limit the rotation range of the connecting part 120 around the axis of the bolt hole 11, when tightening the bolt 200, the limiting channel 21 can prevent the terminal 100 from swinging excessively following the rotation of the bolt 200, so as to prevent the terminal 100 and the wiring harness 300 from being bent and deformed due to force, thereby ensuring the safety and reliability of the operation of the entire high-voltage distribution unit.

[0034] Specifically, the width of the limiting channel 21 is slightly larger than the width of the connecting part 120, so that the connecting part 120 can be easily installed in the limiting channel 21; a mounting hole matching the bolt hole 11 is opened on the assembly part 110, and the staff passes the bolt 200 through the mounting hole and screws it into the bolt hole 11, and then screws the bolt 200. The assembly part 110 will move under the drive of the friction force of the bolt 200, and further drive the connecting part 120 to swing horizontally, and the side wall of the limiting channel 21 can play a horizontal limiting role on the connecting part 120, preventing the connecting part 120 from swinging too much and causing displacement and damage to the wiring harness 300.

[0035] The form of the limiting structure 2 can be set according to actual needs, as long as it can meet the above-mentioned limiting effect. For example, the limiting structure 2 includes a first blocking arm 22 and a second blocking arm 23 arranged at intervals, and the first blocking arm 22 and the second blocking arm 23 are respectively connected to the copper busbar body 1; a limiting channel 21 is formed between the first blocking arm 22 and the second blocking arm 23, and the connecting portion 120 can abut against the first blocking arm 22 or the second blocking arm 23 when rotating around the axis of the bolt hole 11; wherein the first blocking arm 22 and the second blocking arm 23 have the same shape, thereby reducing the design and manufacturing costs. Taking the first blocking arm 22 as an example, one end of the first blocking arm 22 is connected to the copper busbar body 1, and the other end extends along the wiring harness 300 in a direction away from the bolt hole 11, and is bent in an arc shape along the axis of the bolt hole 11, so that the horizontal swing of the connecting portion 120 can be limited at different heights.

[0036] The positioning baffle 24 is provided to make the positioning of the assembly portion 110 more accurate and prevent the terminal 100 from deviating from the designated fixed position along the length direction of the wire harness 300, so that the mounting hole on the assembly portion 110 can be quickly aligned with the bolt hole 11 of the copper busbar body 1. For example, Figure 2 As shown, a positioning baffle 24 is provided on each of the first baffle arm 22 and the second baffle arm 23 . When the assembly portion 110 is connected to the copper busbar body 1 , the connection portion 120 abuts against the positioning baffle 24 in a direction close to the bolt hole 11 .

[0037] Furthermore, the copper busbar of the terminal block also includes a positioning member, which is arranged on the limiting structure 2. The connecting portion 120 in the limiting channel 21 can abut against the positioning member along the axial direction of the bolt hole 11. When the staff puts the terminal 100 into place on the copper busbar body 1, the positioning member can abut against the connecting portion 120 along the axial direction of the bolt hole 11, that is, in the height direction, thereby forming a height limit for the connecting portion 120, preventing the terminal 100 from escaping from the limiting channel 21 in the height direction. The staff does not need to deliberately press the terminal 100 on the copper busbar body 1, and can complete the subsequent bolt connection with one hand, which greatly reduces the difficulty of wiring, is simple to operate, and has strong practicality. In this embodiment, the positioning member is not drawn in the figure.

[0038] The structure of the positioning member can be set according to actual needs, as long as it can ensure that the connection portion 120 is limited along the axial direction of the bolt hole 11. For example, the positioning member has a rotating end and a clamping end, the rotating end is rotatably connected to the limiting structure 2 on one side of the limiting channel 21, and the clamping end can be clamped to the limiting structure 2 on the other side of the limiting channel 21; specifically, the clamping end is hinged to the first stop arm 22, and the second stop arm 23 is provided with a slot that matches the clamping end. It is understandable that when performing wiring operations, the staff will place the connection portion 120 connected to the wiring harness 300 in the limiting channel 21, place the assembly portion 110 on the copper busbar body 1 and align the mounting hole of the assembly portion 110 with the bolt hole 11, then rotate the positioning member to clamp the clamping end of the positioning member to the second stop arm 23, thereby enclosing the connection portion 120 in the limiting channel 21; then the staff will use the bolt 200 to connect the assembly portion 110 to the copper busbar body 1.

[0039] like Figure 1 As shown, the copper busbar body 1 further includes a first splicing plate 12, a second splicing plate 13, and a connecting plate 14. The bolt hole 11 and the limiting structure 2 are respectively provided on the first splicing plate 12. The first splicing plate 12 and the second splicing plate 13 are parallel and spaced apart in the thickness direction. The connecting plate 14 is connected between the first splicing plate 12 and the second splicing plate 13. In this embodiment, the copper busbar body 1 is formed by splicing the first splicing plate 12, the second splicing plate 13, and the connecting plate 14. Since the first splicing plate 12 and the second splicing plate 13 are spaced apart in the thickness direction, the copper busbar body 1 has a Z-shaped three-dimensional structure, thereby enhancing the structural strength and rigidity of the copper busbar body 1, enabling it to withstand strong external impacts and improving the durability of the copper busbar body 1.

[0040] Specifically, the first splicing plate 12 , the connecting plate 14 and the second splicing plate 13 are integrally formed, thereby enhancing the integrity of the copper busbar body 1 and further improving the structural strength of the copper busbar body 1 .

[0041] like Figure 2 As shown, the copper busbar body 1 is provided with a connecting through hole 15 for the bolt to pass through, thereby facilitating the connection of the copper busbar body 1 to the connector of the high-voltage power distribution unit and facilitating assembly and disassembly.

[0042] The limiting structure 2 is integrally formed with the copper busbar body 1 , thereby enhancing the integrity of the copper busbar and improving the structural strength of the copper busbar.

[0043] This embodiment also provides a high-voltage distribution unit, which includes a wiring harness 300, a terminal 100 and the above-mentioned terminal copper busbar, and the wiring harness 300 is connected to the copper busbar body 1 through the terminal 100; the high-voltage distribution unit has a simple structure and can realize rapid positioning and assembly of the terminal 100 and the copper busbar body 1, and the limiting structure 2 on the copper busbar body 1 can prevent the terminal 100 from damaging the wiring harness 300 due to excessive swinging during installation, thereby improving safety and reliability during operation.

[0044] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The copper busbar of the terminal block is characterized by: include: A copper busbar body (1), wherein a bolt hole (11) is provided on the copper busbar body (1), and a terminal (100) comprises an assembly portion (110) and a connection portion (120) connected to each other, wherein the assembly portion (110) is connected to the bolt hole (11) via a bolt (200), and the connection portion (120) is connected to a wiring harness (300); A limiting structure (2), the limiting structure (2) is arranged on the copper busbar body (1), the limiting structure (2) has a limiting channel (21) for accommodating the connecting portion (120), and the limiting channel (21) is configured to limit the rotation range of the connecting portion (120) around the axis of the bolt hole (11).

2. The copper busbar of the terminal block according to claim 1, characterized in that: The limiting structure (2) comprises a first blocking arm (22) and a second blocking arm (23) which are arranged at intervals, and the first blocking arm (22) and the second blocking arm (23) are respectively connected to the copper busbar body (1); The limiting channel (21) is formed between the first blocking arm (22) and the second blocking arm (23), and the connecting portion (120) can abut against the first blocking arm (22) or the second blocking arm (23) when rotating around the axis of the bolt hole (11).

3. The copper busbar of the terminal block according to claim 2, characterized in that: A positioning baffle (24) is provided on each of the first baffle arm (22) and the second baffle arm (23); when the assembly portion (110) is connected to the copper busbar body (1), the connecting portion (120) abuts against the positioning baffle (24) in a direction close to the bolt hole (11).

4. The copper busbar of the terminal block according to claim 1, characterized in that: The terminal copper bar further comprises a positioning member, which is arranged on the limiting structure (2), and the connecting portion (120) in the limiting channel (21) can abut against the positioning member along the axial direction of the bolt hole (11).

5. The copper busbar of the terminal block according to claim 4, characterized in that: The positioning member has a rotating end and a clamping end, the rotating end is rotatably connected to the limiting structure (2) on one side of the limiting channel (21), and the clamping end can be clamped to the limiting structure (2) on the other side of the limiting channel (21).

6. The copper busbar of the terminal block according to claim 1, characterized in that: The copper busbar body (1) comprises a first splicing plate (12), a second splicing plate (13) and a connecting plate (14); the bolt hole (11) and the limiting structure (2) are respectively arranged on the first splicing plate (12); the first splicing plate (12) and the second splicing plate (13) are parallel to each other and spaced apart in the thickness direction; and the connecting plate (14) is connected between the first splicing plate (12) and the second splicing plate (13).

7. The copper busbar of the terminal block according to claim 6, characterized in that: The first splicing plate (12), the connecting plate (14) and the second splicing plate (13) are integrally formed.

8. The copper busbar of the terminal block according to claim 1, characterized in that: The copper busbar body (1) is provided with a connecting through hole (15) for the bolt to pass through.

9. The copper busbar of the terminal block according to any one of claims 1 to 8, characterized in that: The limiting structure (2) and the copper busbar body (1) are integrally formed.

10. High voltage distribution unit, characterized in that: The invention comprises a wiring harness (300), a terminal (100), and a copper busbar of a connecting terminal according to any one of claims 1 to 9, wherein the wiring harness (300) is connected to the copper busbar body (1) through the terminal (100).

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