CN220710661U

CN220710661U - Electric connection device and connecting wire harness

Info

Publication number: CN220710661U
Application number: CN202322365397.1U
Authority: CN
Inventors: 王超
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-04-02
Anticipated expiration: 2033-08-31

Abstract

The utility model discloses an electric connection device and a connection wire harness, comprising at least one flat circuit body, and a conductive mechanism and a connection structure which are electrically connected with the circuit body, wherein the circuit body comprises an internal wire core and an insulating layer which is wrapped on at least the outer peripheral surface of the wire core, a plurality of first through holes are formed in the wire core along the extending direction of the wire core, the conductive mechanism comprises an integrally formed connection part and a functional part, at least one second through hole corresponding to the first through hole is formed in the connection part, part of the insulating layer is exposed out of the wire core, and the wire core and the connection part are connected through the first through hole and the second through hole in a riveting manner, and a connection unit is formed. The novel electric connection is reliable, the mechanical structure is stable, the novel electric connection is suitable for large-scale production, the process is simple, and the cost is saved.

Description

Electric connection device and connecting wire harness

Technical Field

The present utility model relates to the field of electrical connection technology, and more particularly, to an electrical connection device and a connection harness.

Background

With the continuous development of new energy automobiles, FFC flat cables are also applied to battery packs of new energy automobiles to provide low-voltage signal transmission carriers for the battery packs. However, the connection between the FFC/FPC and the terminals is generally welded, the welding process is complex, and the FFC/FPC is not suitable for mass production; in addition, different guide cores in the whole FFC/FPC wire can not realize the short-circuit communication of the own loop, and certain limitation exists in use.

Therefore, the inventor has put forward a connecting structure and a connecting wire harness by virtue of experience and practice of related industries for many years so as to overcome the defects of the prior art.

Disclosure of Invention

The utility model aims to provide an electric connecting device which comprises at least one flat circuit body, a conductive mechanism and a connecting structure which are electrically connected with the circuit body,

the circuit body comprises an internal wire core and an insulating layer wrapping at least the peripheral surface of the wire core,

a plurality of first through holes are arranged on the wire core along the extending direction of the wire core,

the conductive mechanism comprises a connecting part and a functional part which are integrally formed, at least one second through hole corresponding to the first through hole is arranged on the connecting part,

and part of the insulating layer exposes the wire core, and the wire core and the connecting part are connected through the first through hole and the second through hole in a riveting way, so that a connecting unit is formed.

Optionally, at least an outer peripheral surface of the connection unit is provided with an insulating adhesive tape.

Optionally, at least two second through holes are arranged on the connecting portion, and the two second through holes are riveted with the corresponding first through holes respectively.

Optionally, at least part of the connecting parts are punched to form supporting parts, and the middle positions of the supporting parts are arranged in an outward protruding mode relative to the plane where the connecting parts are located.

Optionally, the circuit body is a plurality of, and a plurality of circuit bodies are arranged side by side.

Optionally, a short-circuit sheet is further included, and the short-circuit sheet is electrically connected with any two circuit bodies.

Optionally, at least two third through holes are arranged on the short tab, and the third through holes correspond to the first through holes and are connected in a riveting mode.

Optionally, the insulating layer is integrally molded on the periphery of the wire core.

Optionally, the circuit body is an FPC or an FFC.

The utility model also provides a connecting harness comprising the electrical connection device of any one of the preceding claims and at least one connector, wherein the wire guide mechanism is connected with a corresponding hole site of the connector in a plugging manner or the conductive mechanism is connected with the wire and then is electrically connected with the connector.

The utility model has the following technical effects:

1. in the utility model, the structural design of the electric connecting device is suitable for riveting technology, and the wire core, the copper rivet and the conductive mechanism form a current circulation loop. Reliable electrical connection, stable mechanical structure, suitability for mass production, simple process and cost saving.

2. The riveted short tab achieves the purpose of loop intercommunication in a riveting mode, and the short tab can be produced and used in a standardized mode.

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

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

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

FIG. 2 is a cross-sectional view taken along line D-D of FIG. 1;

FIG. 3 is an enlarged view of H in FIG. 2;

FIG. 4 is a schematic view of a conductive structure connected to a rivet;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 6 is a schematic view of the electrical connection between the shorting tab and the circuit body along line E-E in FIG. 1;

fig. 7 is a schematic view of the electrical connection structure of the short tab and the electric furnace body along the line E-E in fig. 1.

The figures are marked as follows:

10. a circuit body; 20. a conductive mechanism; 30. a connection structure; 50. an insulating adhesive tape; 60. a short tab; 70. a rivet;

11. a wire core; 12. an insulating layer; 111. a first through hole;

21. a connection part; 22. a functional unit; 211. a second through hole; 212. a support part;

61. a short tab core; 62. a shorting tab insulating layer; 611. and a third through hole.

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 electrical connection device as shown in fig. 1-7 comprises at least one flat circuit body 10, a conductive mechanism 20 and a connection structure 30, wherein the conductive mechanism 20 is a terminal, the connection structure 30 is a wire, the conductive mechanism 20 can be welded or crimped, and the circuit body 10 is an FPC or an FFC. The circuit body 10 comprises an inner wire core 11 and an insulating layer 12 wrapping at least the outer peripheral surface of the wire core 11, wherein a plurality of first through holes 111 are arranged on the wire core 11 along the extending direction of the wire core 11,

the conductive mechanism 20 includes an integrally formed connection portion 21 and a functional portion 22, at least one second through hole 211 corresponding to the first through hole 111 is provided on the connection portion 21,

part of the insulating layer 12 is laser ablated, the insulating layer 12 is exposed to the core 11, the connection portion 21 is used for connecting with the core 11, the functional portion 22 is used for electrically connecting with the connection structure 30, and the core 11 and the connection portion 21 are riveted and connected through the first through hole 111 and the second through hole 211, and a connection unit (not shown in the figure) is formed. Specifically, after the first through hole 111 and the second through hole 211 correspond to each other, the rivet 70 passes through the first through hole 111 and the second through hole 211 to rivet the connection portion 21 and the wire core 11 to form a connection unit, and the rivet 70 is generally a copper rivet 70.

In a preferred embodiment, in order to prevent the conductive mechanism 20 from turning over relative to the circuit body 10 and increase the stability between the conductive mechanism 20 and the circuit body 10, at least two second through holes 211 are disposed on the connecting portion 21, and the two second through holes 211 are respectively riveted with the corresponding first through holes 111.

In the present utility model, the structural design of the electrical connection device is suitable for riveting process, and the wire core 11, the copper rivet 70 and the conductive mechanism 20 form a current circulation loop. Reliable electrical connection, stable mechanical structure, suitability for mass production, simple process and cost saving.

In one embodiment, as shown in fig. 2 and 3, in order to avoid electrical contact with the external connection, an insulating adhesive tape 50 is provided on at least the outer circumferential surface of the connection unit after the circuit body 10 is riveted with the conductive mechanism 20, and the insulating adhesive tape 50 plays a role in not only protecting the electrical connection device but also insulating.

In a preferred embodiment, as shown in fig. 4, the conductive mechanism 20 has a risk of being easily bent in the extending direction, so in order to increase the structural stability of the conductive mechanism 20, at least part of the connecting portions 21 are stamped to form supporting portions 212, which support the whole conductive mechanism 20, specifically, the middle position of the supporting portions 212 is protruding outwards relative to the plane where the connecting portions 21 are located, and the positions of the supporting portions 212 may be set according to actual use situations, and the number of the supporting portions 212 may be multiple.

In one embodiment, as shown in fig. 1, the circuit body 10 is a plurality of circuit bodies 10, and the plurality of circuit bodies 10 are arranged side by side and electrically connected to the conductive mechanism 20 and the connection structure 30 to form a plurality of loops.

In yet another embodiment, as shown in fig. 1, 6 and 7, the electrical connection device further includes a shorting tab 60, and the shorting tab 60 is electrically connected to any two of the circuit bodies 10. The shorting tab 60 is composed of a shorting tab core 61 and a shorting tab insulating layer 62 coated outside the shorting tab core 61.

In a specific application, at least two third through holes 611 are disposed on the short circuit piece 60, the third through holes 611 are corresponding to the first through holes 111 and are connected by riveting, and the insulating adhesive tape 50 is also disposed on the riveted short circuit piece 60 and the outer peripheral surface of the circuit body 10.

The short tab 60 can electrically connect any two circuit bodies 10 to realize the short-circuit communication of the circuit bodies, and is connected in a riveting way by adopting the copper rivet 70, so that the FFC has excellent electrical performance and mechanical performance, simple process, suitability for mass production and expanded application range.

The riveting method is used for realizing the switching between the FFC and the shape connecting structure 30, so that the application range of the FFC on the whole vehicle electrical system can be increased, and the permeability of the FFC is improved.

The riveted short tab 60 achieves the purpose of loop intercommunication in a riveted mode, and the short tab 60 can be produced and used in a standardized manner. The first through hole 111 of the FFC is required to be laser ablated to position prior to riveting to facilitate connection with the conductive mechanism 20 and shorting tab 60.

In a preferred embodiment, the insulating layer 12 is integrally molded on the outer periphery of the core 11.

The utility model also provides a connecting wire harness which comprises the electric connecting device and at least one connector, wherein the wire guide mechanism is connected with a corresponding hole site of the connector in a plugging way or the conductive mechanism 20 is connected with a wire and then is electrically connected with the connector.

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. An electric connection device is characterized by comprising at least one flat circuit body, a conductive mechanism and a connection structure which are electrically connected with the circuit body,

2. The electrical connection device according to claim 1, wherein at least an outer peripheral surface of the connection unit is provided with an insulating adhesive tape.

3. The electrical connection device according to claim 1, wherein at least two second through holes are provided on the connection portion, and the two second through holes are respectively riveted with the corresponding first through holes.

4. An electrical connection device as claimed in claim 3 wherein at least part of the connection portion is stamped to form a support portion, the central portion of the support portion being located so as to project outwardly relative to the plane in which the connection portion is located.

5. The electrical connection apparatus of claim 1, wherein the plurality of circuit bodies are arranged side by side.

6. The electrical connection device of claim 5, further comprising shorting tabs electrically connected to any two of the circuit bodies.

7. The electrical connection device of claim 6, wherein the shorting tab is provided with at least two third through holes, the third through holes corresponding to the first through holes and being riveted.

8. The electrical connection device of claim 1, wherein the insulating layer is integrally molded around the outer periphery of the wire core.

9. The electrical connection device of claim 1, wherein the circuit body is an FPC or an FFC.

10. A connection harness comprising an electrical connection device according to any one of claims 1 to 9 and at least one connector, the conductive means being connected to the corresponding hole site of the connector in a plug-in manner or the conductive means being connected to the connector in an electrical manner after connection to a wire.