Electric connector structure of electrically driven vehicle

By setting up a fitting structure on the copper terminals and copper bars of the electric drive vehicle, and combining the design of wire clamps and sleeves, the deflection problem of copper terminals during tightening is solved, the contact area and connection solidity are increased, the service life is extended and the protection effect is provided.

CN222749787UActive Publication Date: 2025-04-11CHINA NORTH VEHICLE RES INST
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Patent Information

Application Number
CN202420978069.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-08
Publication Date
2025-04-11
Estimated Expiration
2034-05-08

AI Technical Summary

Technical Problem

In existing electric drive vehicles, copper terminals are prone to deflect when the bolt assembly is tightened, resulting in a decrease in contact area and a deviation of the ends of the wire, affecting service life.

Method used

An electrical connector structure of an electric drive vehicle is designed. By providing a key-shaped convex portion of an insert on the copper terminal and a keyway on the copper row, the copper terminal is fitted in the keyway when the bolt assembly is fixed to prevent deflection. In addition, the wire clamping block clamps the connection and the sleeve lifts the limit wire end to increase support and protection.

Benefits of technology

Effectively prevent the deflection of copper terminals during tightening, increase the contact area, enhance the connection solidity between copper terminals and wires, reduce wire shaking, extend service life, and provide protection to reduce dust accumulation and contact between other metal objects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of electric connection, and particularly relates to an electric connector structure of an electrically-driven vehicle, which comprises a copper bar switching assembly which comprises a copper bar fixing seat fixedly arranged on electrical equipment, a copper bar arranged on the copper bar fixing seat in a penetrating manner and a sleeve fixing table arranged on one side of the copper bar fixing seat, and the copper bar is provided with a copper bar key groove; one end of the copper terminal is connected with a wire through a wire connecting part, a key-shaped convex part is arranged on a connecting base body of the copper terminal so as to be embedded in the copper bar key groove, and bolt through holes are oppositely formed in the copper bar key groove and the connecting base body of the copper terminal; the wire clamping block is clamped and fixed on the wire connecting part and the wire; and the sleeve sleeves the copper terminal and the copper bar, one end of the sleeve is connected with the sleeve fixing table, and the other end of the sleeve is used for lifting and limiting the wire clamping block. The utility model provides an electric connector structure of an electrically driven vehicle, which can prevent a copper terminal from rotating relative to a copper bar when a bolt assembly is fastened, and can support, fasten and protect the joint of the copper terminal and a lead.
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Description

Technical Field

[0001] The utility model belongs to the technical field of electric connection, and in particular relates to an electric connector structure for an electric drive vehicle. Background Art

[0002] The wiring harness of an electric vehicle, as the blood vessels and nervous system of the vehicle, accounts for a very large proportion of the entire vehicle. The use of aluminum wires instead of copper wires in vehicles is becoming more and more common. However, due to the strength of aluminum materials, the two ends of the aluminum wires are still connected to other electrical equipment through copper terminals when used.

[0003] Generally, copper terminals are connected to copper busbars of electrical equipment through bolt assemblies. Due to the influence of the force direction when the bolts are tightened, the copper terminals tend to deflect, resulting in a reduction in the contact area. The deflection of the copper terminals will cause the ends of the wires to shift, making the wires messy. At the same time, after the copper terminals are connected to the copper busbars of electrical equipment, if the wire material is soft, the shaking of the wires caused by the movement of the vehicle will increase the wear of the copper terminals and the wire connection, affecting their service life. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is: how to provide an electric drive vehicle electrical connector structure which can prevent the copper terminal from rotating relative to the copper bar when the bolt assembly is tightened, and play a supporting, tightening and protecting role on the connection between the copper terminal and the wire.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides an electric connector structure for an electric drive vehicle, which comprises:

[0008] A copper bar adapter assembly comprises a copper bar fixing seat 1 fixed on an electrical device, a copper bar 2 penetrating the copper bar fixing seat 1, and a sleeve fixing platform 1-1 arranged on one side of the copper bar fixing seat 1, wherein the copper bar 2 is provided with a copper bar keyway 2-2;

[0009] The copper terminal 3 has a first end connected to the wire 4 through a wire connecting portion 3-2, and a key-shaped protrusion 7-2 is provided on the connection base of the second end of the copper terminal 3, and the key-shaped protrusion 7-2 is embedded in the copper bar key slot 2-2, and the copper bar key slot 2-2 is provided with a bolt through hole matching the connection base of the copper terminal 3;

[0010] A wire clamp block 5, which is clamped and fixed on the wire connecting portion 3-2 and the wire 4;

[0011] The sleeve 6 is sleeved on the copper terminal 3 and the copper busbar 2, one end of which is connected to the sleeve fixing platform 1-1, and the other end of which lifts and limits the wire clamping block 5.

[0012] Among them, an insert hole 3-1 is opened on the second end of the copper terminal 3, and an insert 7 is arranged in the insert hole 3-1. The insert 7 includes an insert base 7-1 and a key-shaped protrusion 7-2 arranged on the insert base 7-1. The insert base 7-1 is connected to the connecting base at the second end of the copper terminal 3, and the copper terminal 3 is embedded in the copper bar keyway 2-2 through the key-shaped protrusion 7-2.

[0013] Among them, an inlay positioning block 7-4 is arranged on one side of the inlay block base 7-1, and a positioning groove is arranged on the inlay hole 3-1 corresponding to the inlay positioning block 7-4, and the inlay positioning block 7-4 is embedded in the positioning groove.

[0014] Among them, the wire clamp block 5 includes two wire clamp bodies, each of which has an arc-shaped groove on one side. After the two wire clamp bodies are fixedly connected by a bolt assembly, the two arc-shaped grooves relatively form a clamping channel 5-3, which is clamped and connected to the wire connecting part 3-2 and the wire 4.

[0015] Among them, at least three groups of clamping block limiting grooves 5-2 are evenly arranged at equal intervals in the circumferential direction of the edge of the wire clamping block 5, and a protruding sleeve limiting portion 6-2 is arranged on the inner wall of one end of the sleeve 6 corresponding to the clamping block limiting grooves 5-2.

[0016] Among them, after the sleeve 6 is connected to the sleeve fixing platform 1 - 1, the sleeve limiting portion 6 - 2 abuts against the clamping block limiting groove 5 - 2 to clamp and fix the wire clamping block 5.

[0017] Among them, among the two wire clamps, one wire clamp has a plurality of bolt countersunk holes 5-1 symmetrically opened on both sides, and the other wire clamp has a plurality of nut countersunk holes symmetrically opened on both sides. The bolt countersunk holes 5-1 are opposite to the nut countersunk holes to penetrate the bolt assemblies to connect the two wire clamps.

[0018] Among them, one end of the sleeve 6 is interference fit with the sleeve fixing platform 1-1 and is fixed by applying bolts.

[0019] The shape of the sleeve 6 is adapted to the shape of the copper terminal 3 and the copper busbar 2 after being connected.

[0020] The sleeve 6 is provided with a plurality of air holes in an array, so as to provide ventilation and heat dissipation when the copper terminal 3 and the copper busbar 2 are connected.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model prevents the copper terminal from being offset when a bolt assembly is applied to fix the two by engaging the key-shaped protrusion of the insert on the copper terminal with the key groove on the copper busbar, while increasing the contact area between the copper terminal and the copper busbar.

[0023] The wire clamp block of the utility model can be clamped and arranged at the connection between the copper terminal and the wire, which can further strengthen the connection between the copper terminal and the wire. At the same time, the end of the wire can be supported and limited by the sleeve to reduce the shaking of the wire.

[0024] The sleeve of the utility model is arranged on the connection between the copper terminal and the copper busbar, which plays a protective role on the connection, can reduce dust accumulation, and prevent other metal objects from contacting the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0026] Figure 2 It is a schematic diagram of the structure after the sleeve of the embodiment of the utility model is removed.

[0027] Figure 3 It is an exploded view of an embodiment of the utility model.

[0028] Figure 4 yes Figure 3 Schematic diagram of the structure from another angle.

[0029] Among them: 1 copper bar fixing seat; 1-1 sleeve fixing platform; 1-2 sleeve fixing through hole;

[0030] 2 copper bars; 2-1 copper bar interior; 2-2 copper bar keyway;

[0031] 3 copper terminal; 3-1 mounting hole; 3-2 wire connection part;

[0032] 4 wires;

[0033] 5 conductor clamping block; 5-1 bolt countersunk hole; 5-2 clamping block limiting groove; 5-3 clamping channel;

[0034] 6 sleeve; 6-1 sleeve bolt through hole; 6-2 sleeve limiting part;

[0035] 7 insert; 7-1 insert base; 7-2 key-shaped protrusion; 7-3 insert bolt through hole; 7-4 insert positioning block. DETAILED DESCRIPTION

[0036] In order to make the purpose, content, and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments.

[0037] In order to solve the above technical problems, the utility model provides an electric connector structure for an electric drive vehicle, which comprises:

[0038] A copper bar adapter assembly comprises a copper bar fixing seat 1 fixed on an electrical device, a copper bar 2 penetrating the copper bar fixing seat 1, and a sleeve fixing platform 1-1 arranged on one side of the copper bar fixing seat 1, wherein the copper bar 2 is provided with a copper bar keyway 2-2;

[0039] The copper terminal 3 has a first end connected to the wire 4 through a wire connecting portion 3-2, and a key-shaped protrusion 7-2 is provided on the connection base of the second end of the copper terminal 3, and the key-shaped protrusion 7-2 is embedded in the copper bar key slot 2-2, and the copper bar key slot 2-2 is provided with a bolt through hole matching the connection base of the copper terminal 3;

[0040] A wire clamp block 5, which is clamped and fixed on the wire connecting portion 3-2 and the wire 4;

[0041] The sleeve 6 is sleeved on the copper terminal 3 and the copper busbar 2, one end of which is connected to the sleeve fixing platform 1-1, and the other end of which lifts and limits the wire clamping block 5.

[0042] Among them, an insert hole 3-1 is opened on the second end of the copper terminal 3, and an insert 7 is arranged in the insert hole 3-1. The insert 7 includes an insert base 7-1 and a key-shaped protrusion 7-2 arranged on the insert base 7-1. The insert base 7-1 is connected to the connecting base at the second end of the copper terminal 3, and the copper terminal 3 is embedded in the copper bar keyway 2-2 through the key-shaped protrusion 7-2.

[0043] Among them, an inlay positioning block 7-4 is arranged on one side of the inlay block base 7-1, and a positioning groove is arranged on the inlay hole 3-1 corresponding to the inlay positioning block 7-4, and the inlay positioning block 7-4 is embedded in the positioning groove.

[0044] Among them, the wire clamp block 5 includes two wire clamp bodies, each of which has an arc-shaped groove on one side. After the two wire clamp bodies are fixedly connected by a bolt assembly, the two arc-shaped grooves relatively form a clamping channel 5-3, which is clamped and connected to the wire connecting part 3-2 and the wire 4.

[0045] Among them, at least three groups of clamping block limiting grooves 5-2 are evenly arranged at equal intervals in the circumferential direction of the edge of the wire clamping block 5, and a protruding sleeve limiting portion 6-2 is arranged on the inner wall of one end of the sleeve 6 corresponding to the clamping block limiting grooves 5-2.

[0046] Among them, after the sleeve 6 is connected to the sleeve fixing platform 1 - 1, the sleeve limiting portion 6 - 2 abuts against the clamping block limiting groove 5 - 2 to clamp and fix the wire clamping block 5.

[0047] Among them, among the two wire clamps, one wire clamp has a plurality of bolt countersunk holes 5-1 symmetrically opened on both sides, and the other wire clamp has a plurality of nut countersunk holes symmetrically opened on both sides. The bolt countersunk holes 5-1 are opposite to the nut countersunk holes to penetrate the bolt assemblies to connect the two wire clamps.

[0048] Among them, one end of the sleeve 6 is interference fit with the sleeve fixing platform 1-1 and is fixed by applying bolts.

[0049] The shape of the sleeve 6 is adapted to the shape of the copper terminal 3 and the copper busbar 2 after being connected.

[0050] The sleeve 6 is provided with a plurality of air holes in an array, so as to provide ventilation and heat dissipation when the copper terminal 3 and the copper busbar 2 are connected.

[0051] Example 1

[0052] This embodiment provides a Figures 1 to 4 The electric drive vehicle electrical connector structure shown includes:

[0053] A copper bar adapter assembly, comprising a copper bar fixing seat 1 for fixing on an electrical device, a copper bar 2 penetrating the copper bar fixing seat 1, and a sleeve fixing platform 1-1 arranged on one side of the copper bar fixing seat 1, wherein the copper bar 2 is provided with a copper bar keyway 2-2, and the copper bar interior 2-1 of the copper bar 2 is located inside the electrical device for connecting with other electrical copper bars;

[0054] The copper terminal 3 has one end which is connected to the wire 4 by pressing through the wire connecting part 3-2 (the end of the wire 4 is parallel to the direction of the copper bar 2), and the connecting base ( Figure 3 A key-shaped protrusion is provided on the flat part of the copper busbar for being embedded in the copper busbar keyway 2-2, and bolt holes are provided on the copper busbar keyway 2-2 and on the connecting base of the copper terminal 3 for applying a bolt assembly to connect the copper terminal 3 and the copper busbar 2;

[0055] A wire clamp block 5, which is clamped and fixed on the wire connecting portion 3-2 and the wire 4;

[0056] The sleeve 6 is sleeved on the copper terminal 3 and the copper busbar 2, one end of which is connected to the sleeve fixing through hole 1-2 of the sleeve fixing platform 1-1 by applying bolts through the sleeve bolt through hole 6-1, and the other end is used to lift and limit the wire clamp block 5. The shape of the sleeve 6 is adapted to the shape of the copper terminal 3 and the copper busbar 2 after being connected, that is, Figure 1 In the shape of "horizontal-oblique upward-horizontal", preferably, a plurality of air holes are arranged in an array on the sleeve 6 for ventilation and heat dissipation of the connection between the copper terminal 3 and the copper bus 2.

[0057] See also Figure 3 and Figure 4 The copper terminal 3 is provided with an insert hole 3-1, and an insert 7 is welded in the insert hole 3-1. The insert 7 includes an insert base 7-1 and a key-shaped protrusion 7-2 provided on the insert base 7-1. The insert base 7-1 is connected to the connection base of the copper terminal 3, and the copper terminal 3 is embedded in the copper bar keyway 2-2 through the key-shaped protrusion 7-2. An insert positioning block 7-4 is provided on one side of the insert base 7-1, and a positioning groove is provided on the insert hole 3-1 corresponding to the insert positioning block 7-4, and the insert positioning block 7-4 is embedded in the positioning groove.

[0058] See also Figures 2 to 4 The wire clamp block 5 includes two wire clamp bodies, one side of which is provided with an arc-shaped groove. After the two wire clamp bodies are fixedly connected by a bolt assembly, the two arc-shaped grooves relatively form a clamping channel 5-3 for clamping and connecting the wire connecting portion 3-2 and the wire 4. Four groups of clamp block limiting grooves 5-2 are evenly arranged at equal intervals along the circumference of the edge of the wire clamp block 5, and a protruding sleeve limiting portion 6-2 is arranged on the inner wall of one end of the sleeve 6 corresponding to the clamp block limiting grooves 5-2. After the sleeve 6 is connected to the sleeve fixing platform 1-1, the sleeve limiting portion 6-2 abuts against the clamp block limiting groove 5-2 to clamp and fix the wire clamp block 5. The sleeve 6 is pre-set on one side of the wire 4, and is then sleeved and installed after the copper terminal 3 and the copper busbar 2 are connected.

[0059] See also Figures 2 to 4 , a plurality of bolt countersunk holes 5-1 are symmetrically opened on both sides of the wire clamp body, and a plurality of nut countersunk holes are symmetrically opened on both sides of the other wire clamp body, and the bolt countersunk holes 5-1 are opposite to the nut countersunk holes to penetrate the bolt assembly to connect the two wire clamp bodies. In this embodiment, an elastic gasket is arranged in the arc-shaped groove of the wire clamp body to make the clamping effect of the clamping channel 5-3 better.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An electric connector structure for an electric drive vehicle, characterized in that: It includes: A copper bar adapter assembly comprises a copper bar fixing seat (1) fixed on an electrical device, a copper bar (2) penetrating the copper bar fixing seat (1), and a sleeve fixing platform (1-1) arranged on one side of the copper bar fixing seat (1), wherein the copper bar (2) is provided with a copper bar keyway (2-2); A copper terminal (3), the first end of which is connected to a wire (4) via a wire connecting portion (3-2), the connection base of the second end of which is provided with a key-shaped protrusion (7-2), the key-shaped protrusion (7-2) being embedded in the copper bar keyway (2-2), the copper bar keyway (2-2) being provided with a bolt through hole matching the connection base of the copper terminal (3); A wire clamp block (5) which is clamped and fixed on the wire connecting portion (3-2) and the wire (4); A sleeve (6) is sleeved on the copper terminal (3) and the copper busbar (2), one end of which is connected to the sleeve fixing platform (1-1), and the other end of which lifts and limits the wire clamping block (5).

2. The electric connector structure for an electric drive vehicle according to claim 1, characterized in that: The second end of the copper terminal (3) is provided with an insert hole (3-1), the insert hole (3-1) is provided with an insert (7), the insert (7) comprises an insert base (7-1) and a key-shaped protrusion (7-2) provided on the insert base (7-1), the insert base (7-1) is connected to a connecting base at the second end of the copper terminal (3), and the copper terminal (3) is embedded in the copper bar keyway (2-2) through the key-shaped protrusion (7-2).

3. The electric connector structure for an electric drive vehicle as claimed in claim 2, characterized in that: An inlay positioning block (7-4) is provided on one side of the inlay block base (7-1), a positioning groove is provided on the inlay hole (3-1) corresponding to the inlay positioning block (7-4), and the inlay positioning block (7-4) is embedded in the positioning groove.

4. The electric connector structure for an electric drive vehicle according to claim 1, characterized in that: The wire clamp block (5) comprises two wire clamp bodies, each of which has an arc-shaped groove on one side. After the two wire clamp bodies are fixedly connected by a bolt assembly, the two arc-shaped grooves relatively form a clamping channel (5-3) which is clamped and connected to the wire connecting portion (3-2) and the wire (4).

5. The electric connector structure for an electric drive vehicle as claimed in claim 4, characterized in that: At least three groups of clamping block limiting grooves (5-2) are evenly arranged at circumferential intervals on the edge of the wire clamping block (5), and a protruding sleeve limiting portion (6-2) is arranged on the inner wall of one end of the sleeve (6) corresponding to the clamping block limiting grooves (5-2).

6. The electric connector structure for an electric drive vehicle as claimed in claim 5, characterized in that: After the sleeve (6) is connected to the sleeve fixing platform (1-1), the sleeve limiting portion (6-2) abuts against the clamping block limiting groove (5-2) to clamp and fix the wire clamping block (5).

7. The electric connector structure for an electric drive vehicle as claimed in claim 4, characterized in that: Of the two wire clamps, one wire clamp has a plurality of bolt countersunk holes (5-1) symmetrically formed on both sides, and the other wire clamp has a plurality of nut countersunk holes symmetrically formed on both sides. The bolt countersunk holes (5-1) are opposite to the nut countersunk holes so as to penetrate bolt assemblies to connect the two wire clamps.

8. The electric connector structure for an electric drive vehicle as claimed in claim 1, characterized in that: One end of the sleeve (6) is interference fit with the sleeve fixing platform (1-1) and is fixed by applying bolts.

9. The electric connector structure for an electric drive vehicle according to claim 1, characterized in that: The shape of the sleeve (6) is adapted to the shape of the copper terminal (3) and the copper busbar (2) after being connected.

10. The electric connector structure for an electric drive vehicle according to claim 1, characterized in that: The sleeve (6) is provided with a plurality of air holes in an array, which are used for ventilation and heat dissipation when the copper terminal (3) and the copper busbar (2) are connected.