CN219498254U

CN219498254U - Bendable electric connection structure

Info

Publication number: CN219498254U
Application number: CN202320080167.8U
Authority: CN
Inventors: 王超
Original assignee: Changchun Jiekaiotokebo Aluminum Wire Harness Auto Parts Co ltd
Current assignee: Changchun Jiekaiotokebo Aluminum Wire Harness Auto Parts Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-08-08
Anticipated expiration: 2033-01-12

Abstract

The utility model discloses a bendable electric connection structure, which comprises: the conductive mechanism comprises a functional part and a connecting part which are connected with each other, the conductive wire comprises an internal conductor and an insulating layer which coats the conductor, the connecting part and part of the conductor are electrically connected to form a connecting area, and the insulating protective tube at least coats the connecting area. The electric connection structure can protect the connection area of the wire harness and the conductive mechanism and can enable the wire harness to extend at a preset angle.

Description

Bendable electric connection structure

Technical Field

The utility model relates to the field of electrical connection, in particular to a bendable electrical connection structure.

Background

Automobile wiring harnesses are the network body of automotive circuits, and no wiring harness exists in the absence of automotive circuits. After the bonding terminal is in pressure connection with the electric wire and cable, an insulator or an externally-added metal shell is molded on the outer surface of the bonding terminal to form a wire harness for connecting the circuit. The ground terminal that uses in wet district needs insulating tube to protect, especially in some special areas, like front deck longeron etc. after the ground terminal installation, needs the wire to be the angle and is qualified for the next round of competitions, and current insulating tube structure is single, can't satisfy the pencil and be the angle and be qualified for the next round of competitions, influences the protection of pencil easily, consequently, needs an insulating protection tube that can bend, can realize the guard action to the junction of pencil to can make the pencil be the angle extension.

Disclosure of Invention

The utility model provides a bendable electric connection structure, which comprises: the conductive mechanism comprises a functional part and a connecting part which are connected with each other, the conductive wire comprises an internal conductor and an insulating layer which coats the conductor, the connecting part and part of the conductor are electrically connected to form a connecting area, and the insulating protective tube at least coats the connecting area.

Optionally, the insulating protection tube includes the entrance part, kink and the exit part that connect gradually, the kink is the bellows.

Optionally, an axial included angle between the inlet portion and the outlet portion is 45-180 degrees.

Optionally, the connection region is located within the inlet portion or the outlet portion.

Optionally, the length of the bending part accounts for 1/5-1/3 of the total length of the insulation protection tube.

Optionally, the bending radius of the bending part is 1.5 times of the minimum bending radius of the wire.

Optionally, an end of the insulating layer is located within the insulating protection tube.

Optionally, the insulating protection tube is a heat shrink tube.

Optionally, the insulation protection tube comprises a hot melt adhesive of an inner layer and an outer skin coated outside the hot melt adhesive.

Optionally, at least part of the hot melt adhesive overflows from the openings at the two ends of the insulating protection tube, and the openings at the two ends of the insulating protection tube are sealed.

The electric connection structure can protect the connection area of the wire harness and the conductive mechanism and can enable the wire harness to extend at a preset angle.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a bendable electrical connection structure according to the present utility model;

FIG. 2 is a schematic view of another bendable electrical connection structure according to the present utility model;

FIG. 3 is a schematic view of an insulating protective tube according to the present utility model;

FIG. 4 is a schematic diagram of the electrical connection of the conductive mechanism and the conductive wire according to the present utility model;

fig. 5 is a cross-sectional view of the insulating protective tube of the present utility model.

The figures are marked as follows:

1. a conductive mechanism; 11. a functional unit; 12. a connection part; 2. a wire; 21. a conductor; 22. an insulating layer; 3. an insulating protection tube, 31, inlet portion; 32. a bending part; 33. an outlet portion; 34. a skin; 35. and (5) hot melt adhesive.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Disclosed herein is a bendable electrical connection structure, as shown in fig. 1-5, comprising: the conductive mechanism 1 comprises a functional part 11 and a connecting part 12 which are connected with each other, the conductive mechanism 1 comprises an internal conductor 21 and an insulating layer 22 which covers the conductor 21, the connecting part 12 and part of the conductor 21 are electrically connected to form a connecting area, and the insulating protection tube 3 at least covers the connecting area. The bendable electric connection structure can protect the connection area of the wire harness and enable the wire harness to extend at a preset angle.

In some embodiments, the insulating protection pipe 3 includes an inlet portion 31, a bending portion 32, and an outlet portion 33 connected in sequence, and the bending portion 32 is a corrugated pipe. As shown in fig. 1 to 3, the insulating protection tube 3 includes an inlet portion 31, a bending portion 32 and an outlet portion 33 which are sequentially connected, the bending portion 32 is manufactured into a corrugated tube structure, the conductive mechanism 1 is connected with the wire 2 and then penetrates into the insulating protection tube 3 from the inlet portion 31, the insulating protection tube 3 penetrates out of the outlet portion 33 after passing through the bending portion 32, and the bending portion 32 is manufactured into the corrugated tube structure, so that the insulating protection tube 3 can be conveniently bent into a predetermined angle together with the wire 2 after being installed. It should be noted that the inlet portion 31 and the outlet portion 33 defined herein are only straight portions that distinguish the two ends of the insulating protection tube 3, and do not limit the penetration of the wire 2 from the inlet portion 31 and the outlet portion 33.

In some embodiments, the inlet portion 31 is axially angled from 45 ° to 180 ° from the outlet portion 33. The axial included angle of the inlet part 31 and the outlet part 33 after bending can be 45-180 degrees, as shown in fig. 1 and 2, the included angle is 135 degrees and the included angle is 90 degrees respectively, and the bending angle of the lead 2 can be randomly adjusted within the angle range according to the use environment, so that the actual use requirement is met.

In some embodiments, the connection region is located within the inlet portion 31 or the outlet portion 33. The connection area of the wire 2 and the conductive mechanism 1 is arranged on the straight line segment of the insulation protection tube 3, namely, the connection area is arranged in the inlet part 31 or the outlet part 33 of the insulation protection tube 3, the connection area is prevented from being positioned at the bending part 32, so that the connection area cannot be sealed, the conductive performance is affected, and meanwhile, the wire 2 is arranged at the bending part 32, so that the requirement of bending the wire 2 according to a preset angle can be met. As shown in fig. 1 and 2, the connection region is located at the inlet portion 31 of the insulating protection pipe 3.

In some embodiments, the length of the bending part 32 accounts for 1/5 to 1/3 of the total length of the insulation protection tube 3. According to different use environments, the bending part 32 may be set to different lengths, generally, the length of the bending part 32 accounts for 1/5-1/3 of the total length of the insulation protection tube 3, the bending part 32 is too short and is not easy to bend together with the wire 2, and is easy to break in the bending process, the length of the bending part 32 is too long, the tightness of the inlet part 31 and the outlet part 33 can be reduced, and the protection of the wire 2 and the joint is not facilitated.

In some embodiments, the bend radius of the bend 32 is 1.5 times the minimum bend radius of the wire 2. In general, the bending radius of the bending portion 32 is not smaller than the minimum bending radius of the wire 2, the bending radius of the bending portion 32 is too small, and after the wire 2 and the conductive mechanism 1 are installed and bent with the insulating protection tube 3, the wire 2 is stressed too much at the bending position, so that the insulating layer 22 of the wire 2 is damaged, even the inner conductor 21 is broken, and the in-car circuit system is affected, therefore, the bending radius of the bending portion 32 is set to be 1.5 times of the minimum bending radius of the wire 2.

In some embodiments, the end of the insulating layer 22 is located within the insulating protection tube 3. The end of the insulating layer 22 coated outside the conductor 21 is arranged in the insulating protection tube 3, so that the problem that the end of the insulating layer 22 is exposed outside the insulating protection tube 3 and cannot be protected, and air, dust and the like enter the insulating layer 22 to reduce the tightness of the wire 2 and influence the conductivity of the wire 2 is avoided.

In some embodiments, the insulating protection tube 3 is a heat shrink tube, and in some use cases, the insulating protection tube 3 is configured as a heat shrink tube, because the heat shrink tube has the functions of high-temperature shrinkage, softness, flame retardance, insulation and corrosion resistance, after the heat shrink tube is installed outside a connection area between the wire 2 and the conductive mechanism 1 and the wire 2 is bent into a predetermined angle by using the bending part 32, the heat shrink tube is tightly attached to the outer surface of the connection area by high-temperature shrinkage, so that the waterproof performance of the connection area is effectively ensured, the requirement that the wire 2 is arranged at the predetermined angle can be met, and the heat shrink tube is suitable for various practical installation scenes.

In some embodiments, the insulating protective tube 3 includes an inner layer of hot melt adhesive 35 and an outer skin 34 coated on the outside of the hot melt adhesive 35. The inner layer of hot melt adhesive 35 has the characteristics of low melting point, good waterproof sealing performance, high adhesion, insulation, corrosion resistance, wear resistance and the like.

In some embodiments, at least part of the hot melt adhesive 35 overflows the openings at the two ends of the insulating protection pipe 3, and seals the openings at the two ends of the insulating protection pipe 3. In some use scenes, after the heat shrinkage tube is shrunk and coated on the outer surface of the connection area, at least part of the hot melt adhesive 35 in the heat shrinkage tube overflows out of openings at two ends of the heat shrinkage tube and seals the openings at two ends, so that the waterproof sealing performance of the insulating protection tube 3 is further improved.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A bendable electrical connection structure, comprising: the conductive mechanism comprises a functional part and a connecting part which are connected with each other, the conductive wire comprises an internal conductor and an insulating layer which coats the conductor, the connecting part and part of the conductor are electrically connected to form a connecting area, and the insulating protective tube at least coats the connecting area.

2. The bendable electrical connection structure according to claim 1, wherein the insulating protection tube comprises an inlet portion, a bending portion, and an outlet portion connected in sequence, the bending portion being a bellows.

3. The bendable electrical connection structure of claim 2, wherein the inlet portion and the outlet portion have an axial angle of 45 ° to 180 °.

4. The bendable electrical connection structure according to claim 2, wherein the connection region is located within the inlet portion or the outlet portion.

5. The bendable electric connection structure according to claim 2, wherein the length of the bending part is 1/5-1/3 of the total length of the insulation protection tube.

6. The bendable electrical connection structure of claim 2, wherein the bend radius of the bend is 1.5 times the minimum bend radius of the wire.

7. The bendable electrical connection structure of claim 1, wherein the ends of the insulating layer are located within the insulating protection tube.

8. The bendable electrical connection structure according to claim 1, wherein the insulating protection tube is a heat shrink tube.

9. The bendable electrical connection structure according to claim 1, wherein the insulating protection tube comprises an inner layer of hot melt adhesive and an outer skin coating the hot melt adhesive.

10. The bendable electrical connection structure of claim 9, wherein at least a portion of the hot melt adhesive overflows the openings at the two ends of the insulating protective tube and seals the openings at the two ends of the insulating protective tube.