CN216648622U

CN216648622U - Circuit transition connecting device and current collecting wire

Info

Publication number: CN216648622U
Application number: CN202122681424.7U
Authority: CN
Inventors: 余林; 周涛; 廖永强
Original assignee: Xichang Juyuan Wind Power Development Co ltd
Current assignee: Xichang Juyuan Wind Power Development Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-31
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a line transition connecting device and a collecting wire, which comprise a first wiring nose and a second wiring nose, wherein a transition piece is arranged between the first wiring nose and the second wiring nose, and the first wiring nose, the transition piece and the second wiring nose are connected through bolts. The utility model has the advantages that the transition piece is additionally arranged between the wiring noses, so that the two wiring noses can be isolated, and the corrosion condition caused by the contact between the wiring noses is prevented; the normal work of wiring nose on the circuit is guaranteed, and the life of wiring nose can be increased.

Description

Circuit transition connecting device and current collecting wire

Technical Field

The utility model relates to the technical field of line connection, in particular to a line transition connecting device and a current collecting wire.

Background

The main loop of the original current collecting line is connected by a cable and a copper nose and an aluminum nose at the tail ends of a steel-cored aluminum strand and are directly fixed by bolts, the connecting bolts of the main loop have corrosion, and copper and aluminum are two different metals which are simply connected together and can generate electrochemical reaction (corrosion). Two different metal contacts can constitute the structure of similar battery because of the difference of electrode potential, and after the back wets, joint department can take place to corrode, makes joint contact resistance rise, influences the working property, and the time is long slightly, and junction contact resistance can increase, generate heat, when current passes through, will make joint position temperature rise, and the temperature rise has accelerated joint corrosion, has increased contact resistance, causes vicious circle, until burning out.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the direct contact between two wire connecting noses can corrode in a humid environment, and aims to provide a line transition connecting device and a current collecting wire, which can realize that the wire connecting noses are not in direct contact, so that the wire connecting noses are not corroded.

The utility model is realized by the following technical scheme:

a line transition connecting device comprises a first wiring nose and a second wiring nose, wherein a transition piece is arranged between the first wiring nose and the second wiring nose, and the first wiring nose, the transition piece and the second wiring nose are connected through bolts.

The utility model provides a circuit transition connecting device, which is characterized in that a transition piece made of metal is additionally arranged between two wiring noses, so that the two wiring noses can be separated, and the corrosion phenomenon caused by the contact between the wiring noses can be prevented.

Preferably, the transition piece is a circular ring type transition piece, and the size of the round hole is matched with the diameter of the bolt.

Preferably, the first wire lug is a copper lug and the second wire lug is an aluminum lug.

Preferably, the transition piece comprises a copper layer and an aluminum layer, the copper layer is arranged in contact with the copper nose, and the aluminum layer is arranged in contact with the aluminum nose.

Preferably, the copper layer is attached to the aluminum layer by a brazing process.

Preferably, the thickness range of the transition piece is 1.5 mm-2 mm.

The transition piece used is too thin to play a role in isolation, and too thick can bring interference to the connected lines.

Preferably, the transition piece is sized to match the wire connection portion of the first wire connection lug or the wire connection portion of the second wire connection lug.

Preferably, the copper nose is a DTG copper nose.

The utility model also provides a current collecting wire which comprises a cable, the copper core aluminum stranded wire and the circuit transition connecting device, wherein the cable is connected with the copper core aluminum stranded wire through the main loop connecting device, the cable is connected with the first wire connecting nose, and the second wire connecting nose is connected with the copper core aluminum stranded wire.

Preferably, the cable consists of a cross-sectional area greater than 4mm²And a plurality of strands of copper wire.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. according to the line transition connecting device and the electric wire collector, the transition piece is additionally arranged between the wiring noses, so that the two wiring noses can be isolated, and the corrosion condition caused by contact between the wiring noses is prevented;

2. the circuit transition connecting device and the collecting wire provided by the embodiment of the utility model ensure that the wiring lug works normally on the circuit and can prolong the service life of the wiring lug.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art may also derive other related drawings based on these drawings without inventive effort.

FIG. 1 is a schematic diagram of a current collecting line structure

Reference numerals:

1. a cable; 2. a bolt; 3. a first wire connecting nose; 4. a copper layer; 5. an aluminum layer; 6. a second wire connecting nose; 7. copper core aluminum stranded wire.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the utility model. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the utility model.

Example one

The embodiment discloses a line transition connecting device, which comprises a first wiring nose 3 and a second wiring nose 6, wherein a transition piece is arranged between the first wiring nose 3 and the second wiring nose 6, and the first wiring nose 3, the transition piece and the second wiring nose 6 are connected through a bolt 2.

In the present embodiment, the first wire connecting nose 3 is a copper nose, and the second wire connecting nose 6 is an aluminum nose, in the prior art, the copper nose is in direct contact with the aluminum nose, and the battery is easily formed in a humid environment, so as to corrode the copper nose or the aluminum nose.

In this embodiment, the transition piece is ring type transition piece, and the round hole size in the middle of the ring matches each other with 2 diameters of the bolt of connecting, adopts the structure of mutually supporting, more can do benefit to and carry out firm connection between copper nose, transition piece and the aluminium nose.

In this embodiment, the transition piece comprises a copper layer 4 and an aluminum layer 5, the aluminum layer 5 is an aluminum sheet, the copper layer 4 is a layer of structure attached to the aluminum sheet by a brazing process, that is, the copper layer 4 is a film completely attached to one side of the aluminum layer 5, after the attachment, one side attached to the copper layer 4 is in contact with the copper nose, one side attached to the aluminum layer 5 is in contact with the aluminum nose, the connection between the same metal electrodes does not form any oxidation structure layer which is not good for the copper nose, and the size of the set transition piece is matched with the size of the copper nose or the aluminum nose connection portion,

in this embodiment, the scope that the thickness of transition piece set up is 1.5mm ~2mm, and too thin of the thickness setting of transition piece can cause to be not enough with the isolation distance between the wiring nose, can cause the response between the static to appear, if the transition piece that sets up is too thick, aluminium layer 5 and copper layer 4 itself just have certain resistance, can cause the influence to the electric current of line transmission, in this embodiment, what the copper nose adopted is the DTG copper nose.

Adopt a circuit transition connecting device that this embodiment provided, can keep apart the place of contact between copper nose and the aluminium nose to make under humid environment, unable formation battery, unable to corrode copper nose or aluminium nose, consequently, when can guarantee the normal working property between copper nose and the aluminium nose, can prolong the life between copper nose and the aluminium nose.

Example two

The embodiment discloses a current collecting wire, which comprises a cable 1, a copper core aluminum stranded wire 7 and a main loop connecting device as in the first embodiment, wherein the cable 1 is connected with the copper core aluminum stranded wire 7 through the main loop connecting device, the cable 1 is connected with the first wire connecting nose 3, and the second wire connecting nose 6 is connected with the copper core aluminum stranded wire 7. In this embodiment, the cable 1 is formed by a cross-sectional area of more than 4mm²And a plurality of strands of copper wire.

In the present embodiment, by connecting the line connection device to a specific line, the device connected between the lines can be used for a long time through such connection.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The line transition connecting device is characterized by comprising a first wiring nose (3) and a second wiring nose (6), wherein a transition piece is arranged between the first wiring nose (3) and the second wiring nose (6), and the first wiring nose (3), the transition piece and the second wiring nose (6) are connected through a bolt (2);

the thickness range of the transition piece is 1.5 mm-2 mm; the size of the transition piece is matched with the wiring part of the first wiring nose (3) or the wiring part of the second wiring nose (6);

the transition piece is used for isolating the first wiring nose (3) from the second wiring nose (6).

2. A line transition connection device according to claim 1, characterized in that the transition piece is a circular ring type transition piece, and the size of the circular hole is matched with the diameter of the bolt (2).

3. A line transition connection arrangement according to claim 2, characterised in that the first wire lug (3) is a copper lug and the second wire lug (6) is an aluminium lug.

4. A line transition connection arrangement according to claim 3, characterised in that the transition piece comprises a copper layer (4) and an aluminium layer (5), and that the copper layer (4) is arranged in contact with the copper nose and the aluminium layer (5) is arranged in contact with the aluminium nose.

5. A line transition connection according to claim 4, characterized in that the copper layer (4) is attached to the aluminium layer (5) by means of a soldering process.

6. The line transition connection device according to any one of claims 3 to 5, wherein the copper nose is a DTG copper nose.

7. A current collecting wire, characterized by comprising a cable (1), a copper core aluminum stranded wire (7) and a line transition connecting device according to any one of claims 1 to 6, wherein the cable (1) is connected with the copper core aluminum stranded wire (7) through the line transition connecting device, the cable (1) is connected with the first wire connecting nose (3), and the second wire connecting nose (6) is connected with the copper core aluminum stranded wire (7).

8. The collector wire according to claim 7, wherein said cable (1) has a cross-sectional area greater than 4mm²And a plurality of strands of copper wire.