CN220021855U

CN220021855U - Copper line and aluminium bar line switching structure

Info

Publication number: CN220021855U
Application number: CN202321252986.2U
Authority: CN
Inventors: 王超
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-11-14
Anticipated expiration: 2033-05-23

Abstract

The utility model discloses a copper wire and aluminum bar wire switching structure, which comprises a protection box, at least one copper wire, an aluminum bar wire and a switching aluminum row, wherein the switching aluminum row and part of the copper wire and the aluminum bar wire are positioned in the protection box; one end of the copper wire extends into the protection box and is connected with one end of the transfer aluminum row, and one end of the aluminum bar wire extends into the protection box and is connected with the other end of the transfer aluminum row; the transfer aluminum row and the part of the wire harness connected with the transfer aluminum row are fixed in the protection box, so that the transfer point is reliably protected, accidental damage is avoided, and the transfer reliability is ensured; the junction of protection box and pencil is sealed by the sealing washer, prevents that the foreign matter from getting into, prolongs the life of switching part.

Description

Copper line and aluminium bar line switching structure

Technical Field

The utility model relates to the field of automobile wire harnesses, in particular to a copper wire and aluminum bar wire switching structure.

Background

With the competition of the new energy automobile industry becoming white-hot, the weight reduction and the cost reduction are more and more important, and compared with copper conductor cables, aluminum conductor cables are more and more widely applied to new energy automobiles due to the advantages of light weight, low price and rich aluminum resources. But the aluminum material has high hardness, strict machining and forming tolerance requirements, and large installation and rotation space of the formed aluminum bar wire, and a special connector is needed to connect the aluminum bar wire and the copper wire, so that the aluminum bar wire is a main factor of limited popularization at present. Therefore, this patent provides a copper line and aluminium bar line switching structure.

Disclosure of Invention

The utility model aims to provide a copper wire and aluminum bar wire switching structure, so that the copper wire and the aluminum bar wire can be switched and assembled on the whole automobile, meanwhile, the copper wire and the aluminum bar wire are flexibly combined and used, the requirements of miniaturization, light weight and low cost of the existing new energy automobile are met, the operation is more convenient, and the batch production of wire harnesses is easier to realize.

The utility model provides a copper wire and aluminum bar wire switching structure, which comprises a protection box, at least one copper wire, an aluminum bar wire and a switching aluminum row, wherein the switching aluminum row and part of the copper wire and the aluminum bar wire are positioned in the protection box;

one end of the copper wire stretches into the protection box to be connected with one end of the switching aluminum row, and one end of the aluminum bar wire stretches into the protection box to be connected with the other end of the switching aluminum row.

Preferably, one end of the copper wire is connected with one end of the switching aluminum row in a welding mode, and one end of the aluminum bar wire is connected with the other end of the switching aluminum row through a first bolt.

Preferably, the protective case comprises a left case and a right case connected to each other;

the left box body comprises a left leading-in part and a left protection part which are integrally formed, and the right box body comprises a right leading-in part and a right protection part which are integrally formed;

the left protection part and the right protection part are provided with connecting surfaces matched in shape at the opposite connection position, one of the two connecting surfaces is provided with a sealing groove, the other one is provided with a sealing bulge matched with the sealing groove, and the outer side of the sealing bulge is sleeved with a sealing adhesive tape.

Preferably, one of the bottom surfaces of the left protection part and the right protection part is provided with at least one supporting upright post, and the other is provided with a limiting groove which is abutted with the top surface of the supporting upright post.

Preferably, one of the bottom surfaces of the left protection part and the right protection part is provided with a supporting platform for supporting the transfer aluminum row, and a yielding hole capable of accommodating the first bolt is formed in the supporting platform.

Preferably, the side walls of the left protection part and the right protection part are symmetrically provided with at least one fixing part, the fixing part is provided with a connecting hole, a second bolt is screwed in the connecting hole, and the left protection part and the right protection part are connected through the second bolt.

Preferably, tail caps are connected to the outer parts of the left and right introduction parts, respectively;

the side wall of the left leading-in part and the side wall of the right leading-in part are respectively provided with a fixing protrusion, and the tail cover is clamped with the fixing protrusions through clamping grooves formed in the side wall.

Preferably, a sealing ring is arranged in the tail cover, and the sealing ring is coated on the outer edge of the copper wire or the aluminum bar wire.

Preferably, guide holes through which part of the copper wire or the aluminum bar wire penetrates are formed in the left guide portion and the right guide portion;

the guide holes comprise a first guide hole and a second guide hole which are communicated with each other, the first guide hole is used for accommodating the sealing ring, and the second guide hole is used for accommodating the copper wire or the aluminum bar wire.

Preferably, the first guide hole is located on a side of the left introduction part farther from the left guard part or on a side of the right introduction part farther from the right guard part.

This patent has following technical effect:

1. the switching aluminum row and the part wire harness connected with the switching aluminum row are all fixed in the protection box, reliable protection is carried out on the switching point, accidental damage is avoided, and switching reliability is guaranteed.

2. The junction of protection box and pencil is sealed by the sealing washer, prevents that the foreign matter from getting into, prolongs the life of switching part.

3. The copper wire and the transfer aluminum row are welded and formed by one or combination of resistance welding, ultrasonic welding, friction welding and the like, and the gap between the copper wire and the transfer aluminum row is filled with solder, so that the welding is firm and reliable, air and water corrosion are isolated, interface alloying effectively prevents copper-aluminum contact galvanic corrosion from occurring, and simultaneously, the mechanical property and the electrical property of the connection of the copper wire and the transfer aluminum row are met.

4. The aluminum bar wire is in threaded connection with the switching aluminum bar through the bolts, so that the mechanical performance and the electrical performance of the connection of the switching aluminum bar and the aluminum bar wire are met.

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 an exploded view of the present patent.

Fig. 2 is an assembly schematic diagram of the present patent.

Fig. 3 is an isometric view of the left cassette.

Fig. 4 is an isometric view of the left cassette at another angle.

Fig. 5 is an isometric view of the right cassette.

Fig. 6 is a front view of the sealing strip.

The figures are marked as follows:

1. copper wire 2 and aluminum bar wire

3. Protective case 31, left case 311, left lead-in 312, left protective portion 32, right case 313, right lead-in 314, right protective portion 321, support platform 322, relief hole 33, seal groove 34, seal protrusion 35, support column 36, limit groove 37, fixing portion 381, fixing protrusion 382, first guide hole 383, second guide hole

4. The aluminum row for the transfer, the tail cover 51, the clamping groove 6, the sealing ring 7, the sealing rubber strip 8, the first bolt 9 and the second bolt.

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.

Examples

As shown in fig. 1-2, the embodiment provides a copper wire and aluminum bar wire switching structure, which comprises a protection box 3, at least one copper wire 1, an aluminum bar wire 2 and a switching aluminum row 4, wherein the switching aluminum row 4 and part of the copper wires 1 and the aluminum bar wires 2 are positioned in the protection box 3; one end of the copper wire 1 stretches into one end of the protection box 3 and is connected with the switching aluminum row 4, and one end of the aluminum bar wire 2 stretches into the other end of the protection box 3 and is connected with the switching aluminum row 4. Through the setting of protection box 3, protect switching aluminium row 4 and copper line 1, aluminium bar line 2 that link to each other with it, avoid the foreign matter to get into and cause it to damage.

Further, as shown in fig. 1, one end of the copper wire 1 is connected with one end of the aluminum transfer bar 4 in a welding manner, the connection part of the copper wire 1 is firstly processed into a flat plate shape, then the flat plate shape is welded with the aluminum transfer bar 4 in a resistance welding manner, an ultrasonic welding manner, a friction welding manner and the like, a gap between the copper wire 1 and the aluminum transfer bar 4 is filled with solder, so that welding is firm and reliable, air and water corrosion are isolated, interface alloying effectively prevents copper-aluminum contact galvanic corrosion, one end of the aluminum bar wire 2 is connected with the other end of the aluminum transfer bar 4 through a first bolt 8, the connection part of the aluminum bar wire 2 is firstly processed into a flat plate shape, then a connection hole is processed on the flat plate shape, a connection hole for connecting the first bolt 8 is also preset on the aluminum transfer bar 4, one of the two connection holes is a unthreaded hole, the first bolt 8 firstly passes through the unthreaded hole and then is screwed into the threaded hole to connect the two so that connection is tighter.

Further, as shown in fig. 1, the protective case 3 includes a left case 31 and a right case 32 connected to each other; through the setting of detachable left box body 31 and right box body 32, can conveniently stretch into protection box 3 internal connection switching aluminium row 4 with the pencil.

Further, as shown in fig. 3 and 5, the left case 31 includes a left introduction portion 311 and a left protection portion 312 which are integrally formed, and the right case 32 includes a right introduction portion 313 and a right protection portion 314 which are integrally formed; the wire harnesses on two sides respectively pass through the left guide-in part 311 and enter the left protection part 312 or pass through the right guide-in part 313 and enter the right protection part 314 to connect the aluminum busbar 4, the left guide-in part 311 or the right guide-in part 313 seals the outer surface of the wire harness, and the left protection part 312 or the right protection part 314 supports and protects the aluminum busbar 4 and the wire harness connecting part connected with the aluminum busbar.

The mating connection parts of the left protecting part 312 and the right protecting part 314 are provided with connection surfaces with matched shapes, one of the two connection surfaces is provided with a sealing groove 33, the other one is provided with a sealing protrusion 34 matched with the sealing groove 33, the connection between the left box body 31 and the right box body 32 is actually the connection between the two protecting parts, and the sealing protrusion 34 stretches into the sealing groove 33 to realize the sealing of the connection surfaces of the two protecting parts during the connection. The sealing protrusion 34 is sleeved with a sealing adhesive tape 7 at the outer side, as shown in fig. 6, so that the sealing effect is better.

Further, as shown in fig. 3 and 5, one of the bottom surfaces of the left guard portion 312 and the right guard portion 314 has at least one support column 35, the other has a limit groove 36 abutting against the top surface of the support column 35, and when the two guard portions are connected, the top surface and the bottom surface of the support column 35 abut against the bottom surfaces of the two guard portions respectively, so as to prevent the two guard portions from being violently flattened by external force, and the top surface of the support column 35 can be smoothly abutted against the other bottom surface through the arrangement of the limit groove 36, so that the two guard portions are prevented from being skewed.

Further, as shown in fig. 5, one of the bottom surfaces of the left protection portion 312 and the right protection portion 314 has a support platform 321 for supporting the aluminum transfer row 4, a hole 322 for allowing the first bolt 8 to be received is provided in the support platform 321, when the two protection portions are connected, the aluminum transfer row 4 is placed on the support platform 321 to prevent the aluminum transfer row from falling under the action of self gravity, the reliability of connection is affected, and the hole 322 is arranged so that the aluminum transfer row 4 does not interfere with the first bolt 8, so that the aluminum transfer row 4 can be placed on the platform smoothly.

Further, as shown in fig. 3 and 5, at least one fixing portion 37 is symmetrically disposed on the side walls of the left protection portion 312 and the right protection portion 314, a connection hole is disposed on the fixing portion 37, a second bolt 9 is screwed into the connection hole, the left protection portion 312 and the right protection portion 314 are connected through the second bolt 9, one of the two symmetrically disposed connection holes is a unthreaded hole, the other is a threaded hole, and the second bolt 9 passes through the unthreaded hole and then is connected into the threaded hole, so that screwing is tighter.

Further, as shown in fig. 1 and 4, a tail cap 5 is connected to the outside of the left introduction portion 311 and the right introduction portion 313, respectively; the side walls of the left leading-in part 311 and the right leading-in part 313 are respectively provided with a fixing protrusion 381, the tail cover 5 is clamped with the fixing protrusions 381 through a clamping groove 51 formed in the side wall, the wiring harness is prevented from shaking greatly through the arrangement of the tail cover 5, the clamping groove 51 and the fixing protrusions 381 are buckled, connection is reliable, and installation and disassembly are convenient. Be provided with sealing washer 6 in the tail-hood 5, sealing washer 6 cladding is in copper line 1 or aluminium bar line 2 outer fringe, through the setting of sealing washer 6, seals the junction between pencil and the protection box 3, prevents that the foreign matter from getting into from this in the protection box 3.

Further, as shown in fig. 4, guide holes through which the copper wire 1 or the aluminum bar wire 2 is inserted are provided in the left and right introduction portions 311 and 313; the guide holes comprise a first guide hole 382 and a second guide hole 383 which are communicated with each other, the first guide hole 382 is used for accommodating the sealing ring 6, and the second guide hole 383 is used for accommodating part of the copper wire 1 or the aluminum bar wire 2, so that the sealing between the protection box and the wire harness outer skin by the sealing ring 6 is realized. The first guide hole 382 is located on a side of the left introduction portion 311 farther from the left guard portion 312 or the first guide hole 382 is located on a side of the right introduction portion 313 farther from the right guard portion 314, so that foreign matters cannot enter the guard box 3.

When in use, the structure can be used for connecting a single copper wire with an aluminum bar wire and also can be used for connecting a plurality of wire harnesses, wherein the connection of only two wire harnesses is shown in the figure, in addition, the situation that the left box body 31 and the right box body 32 are completely separated is only shown in the figure, and in some embodiments, the structure can also be provided in a mode that one side of the left box body 31 and one side of the right box body 32 are hinged, and the other side of the left box body 31 and the right box body 32 are opened.

This patent uses protection box 3 with the connecting portion of copper aluminium wire harness to protect, avoids the foreign matter to get into to its corruption, has avoided external force extrusion simultaneously probably to the destruction that it caused, has improved the reliability that the pencil was connected, simultaneously, this structure equipment is convenient, also realizes the batch production of pencil easily.

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. Copper line and aluminium bar line switching structure, including protection box (3), at least one copper line (1), aluminium bar line (2) and switching aluminium row (4), its characterized in that: the transfer aluminum row (4) and part of the copper wires (1) and the aluminum bar wires (2) are positioned in the protection box (3);

one end of the copper wire (1) stretches into one end of the protection box (3) connected with the switching aluminum row (4), and one end of the aluminum bar wire (2) stretches into the other end of the protection box (3) connected with the switching aluminum row (4).

2. The copper wire and aluminum bar wire switching structure according to claim 1, wherein: one end of the copper wire (1) is connected with one end of the switching aluminum row (4) in a welding mode, and one end of the aluminum bar wire (2) is connected with the other end of the switching aluminum row (4) through a first bolt (8).

3. The copper wire and aluminum bar wire switching structure according to claim 1, wherein: the protection box (3) comprises a left box body (31) and a right box body (32) which are connected with each other; the left box body (31) comprises a left leading-in part (311) and a left protection part (312) which are integrally formed, and the right box body (32) comprises a right leading-in part (313) and a right protection part (314) which are integrally formed;

the butt-joint of the left protection part (312) and the right protection part (314) is provided with connecting surfaces with matched shapes, one connecting surface is provided with a sealing groove (33), the other connecting surface is provided with a sealing bulge (34) matched with the sealing groove (33), and the outer side of the sealing bulge (34) is sleeved with a sealing adhesive tape (7).

4. A copper wire and aluminum bar wire transfer structure according to claim 3, wherein: one of the bottom surfaces of the left protection part (312) and the right protection part (314) is provided with at least one supporting upright post (35), and the other is provided with a limit groove (36) which is abutted with the top surface of the supporting upright post (35).

5. A copper wire and aluminum bar wire transfer structure according to claim 3, wherein: one of the bottom surfaces of the left protection part (312) and the right protection part (314) is provided with a supporting platform (321) for supporting the transfer aluminum row (4), and a yielding hole (322) capable of accommodating the first bolt (8) is formed in the supporting platform (321).

6. A copper wire and aluminum bar wire transfer structure according to claim 3, wherein: the side wall symmetry of left guard portion (312) with right guard portion (314) is provided with at least one department fixed part (37), be provided with the connecting hole on fixed part (37), connect in the connecting hole has connect second bolt (9), left guard portion (312) with right guard portion (314) are passed through second bolt (9) and are connected.

7. A copper wire and aluminum bar wire transfer structure according to claim 3, wherein: tail caps (5) are respectively connected to the outer parts of the left introduction part (311) and the right introduction part (313);

the side walls of the left leading-in part (311) and the right leading-in part (313) are respectively provided with a fixing protrusion (381), and the tail cover (5) is clamped with the fixing protrusions (381) through clamping grooves (51) formed in the side walls.

8. The copper wire and aluminum bar wire switching structure according to claim 7, wherein: a sealing ring (6) is arranged in the tail cover (5), and the sealing ring (6) is coated on the outer edge of the copper wire (1) or the aluminum bar wire (2).

9. The copper wire and aluminum bar wire switching structure according to claim 8, wherein: a guide hole for the copper wire (1) or the aluminum bar wire (2) to penetrate is formed in the left guide-in part (311) and the right guide-in part (313);

the guide holes comprise a first guide hole (382) and a second guide hole (383) which are communicated with each other, the first guide hole (382) is used for accommodating the sealing ring (6), and the second guide hole (383) is used for accommodating part of the copper wire (1) or the aluminum bar wire (2).

10. The copper wire and aluminum bar wire switching structure according to claim 9, wherein: the first guide hole (382) is positioned on the side of the left introduction part (311) which is far from the left protection part (312) or the first guide hole (382) is positioned on the side of the right introduction part (313) which is far from the right protection part (314).