CN215267477U

CN215267477U - Wiring harness mounting structure

Info

Publication number: CN215267477U
Application number: CN202121428033.8U
Authority: CN
Inventors: 申启乡; 顾杰; 程勇; 周浩
Original assignee: Hefei JEE Power System Co Ltd
Current assignee: Hefei JEE Power System Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-21
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a wiring harness installation structure, which comprises a shell, a fixing piece and a tail cover; the outer side of the shell is provided with an integrally formed shell convex tube; the front part of the fixed part is matched and fixed with the convex pipe of the shell, the middle part of the fixed part is provided with external threads, and the tail part of the fixed part is provided with a spring plate; the front part of the tail cover is provided with internal threads, and the inner wall of the tail part of the tail cover is provided with a tightening structure matched with the elastic sheet; the wiring harness enters the shell through the fixing piece and the inner wall of the shell convex tube. The fixing piece and the shell convex pipe of the utility model are matched through the clamping groove and the buckle, the tail part of the fixing piece is fastened through the tail cover thread, the fixing piece is easy to disassemble, the fixing piece is not easy to damage, the working efficiency is improved, and the maintenance cost is reduced; sealing rings are arranged on the fixing piece, the inner wall of the convex pipe of the shell and the wire harness, so that the sealing length is increased, and the leakage risk is reduced; the mounting extension and increase tail-hood structure and shell fragment cooperation can effectively fix the pencil, prevent the pencil swing, further improve sealing performance and pencil tip screw fixation reliability.

Description

Wiring harness mounting structure

Technical Field

The utility model relates to a pencil installation field, in particular to pencil mounting structure.

Background

The external high-voltage wire harness of the electric drive system for the existing new energy automobile is mainly divided into two parts: the three-phase alternating current wire harness and the high-voltage direct current bus. The three-phase streamline and the high-voltage direct-current bus are respectively connected with the motor and the whole vehicle in a connector mode, the connector mode needs the whole vehicle to be matched with a corresponding socket or plug, the cost is increased, meanwhile, due to the fact that the size of the plug-in is large, the assembly mode is fixed by the screw, the space is occupied, and the three-phase streamline and the high-voltage direct-current bus are not in line with the current high-power-density integrated design concept.

Based on the above problem, there is a fixed mode of formula pencil that cut straightly among the prior art, and the structure is constituteed and is generally included shielding ring, sealing washer and mounting. The fixing piece is fixed with the shell to limit the sealing ring and the shielding ring on the shell. The wire harness directly passes through the fixing piece, the sealing ring and the shielding ring and is fixed inside the shell through the screw. The prior art has solved the problem with high costs and occupation space, and pencil assembly is convenient. And the two ends of the wire harness are crimped by adopting copper terminals, and only threaded holes are reserved at the assembly positions and are connected through screws. However, in practical use, the following problems exist:

1. the damage of the wire harness and the fixing piece.

When the debugging of actual production is dismantled and is reprocessed after sale, because the shielding ring jack catch has barb structure, high-pressure pencil interferes with the barb, and pencil pyrocondensation pipe and epidermis are often destroyed, can't satisfy the secondary and use the requirement. Therefore, the wiring harness can be removed only after the fixing piece is removed in the process of disassembly. Because the fixing piece has no dismounting structure, the part is very difficult to dismount and easy to damage, great difficulty is brought to the whole maintenance and debugging, and the working efficiency is reduced.

2. And (4) the problem of seal leakage.

When the high-voltage wire harness wire skin is softer, the skin phenomenon of moving back exists after the assembly, and the generating line can't contact with the sealing washer, causes sealed the revealing.

3. Problem of bus swing

Because the mounting is shorter, can't effectively restrict the pencil swing condition, the fixed pencil screw pine takes off the risk great, simultaneously because the pencil swing, causes the sealing washer not tight with the pencil laminating, and the risk is revealed in the increase.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: to the not enough that prior art exists, on prior art scheme's basis, provide the pencil mounting structure of an optimization, solve following problem:

(1) the fixing piece structure is modified and fixed with the shell, so that the disassembly is simple and the damage is avoided;

(2) the length of the tail part of the fixed part is increased, and a tail cover is added to limit the swinging of the wiring harness;

(3) the sealing washer increases afterbody length, increases with pencil contact segment, reduces sealed risk of revealing.

The technical scheme of the utility model is that:

a wiring harness mounting structure comprises a shell, a fixing piece and a tail cover;

the outer side of the shell is provided with an integrally formed shell convex tube;

the front part of the fixed part is matched and fixed with the convex pipe of the shell, the middle part of the fixed part is provided with external threads, and the tail part of the fixed part is provided with a spring plate;

the front part of the tail cover is provided with an internal thread matched with the external thread in the middle of the fixed part, and the inner wall of the tail part of the tail cover is provided with a contraction structure matched with the elastic sheet;

the wiring harness enters the shell through the fixing piece and the inner wall of the shell convex tube.

Preferably, the surface of the shell convex tube is provided with a wedge-shaped buckle, the front part of the fixing piece is provided with a clamping groove, and the clamping groove is matched and fixed with the buckle.

Preferably, a disassembly gap is reserved between the inner diameter of the front part of the fixing piece and the outer diameter of the convex pipe of the shell.

Preferably, a sealing ring is further arranged between the fixing piece, the inner wall of the shell convex pipe and the wiring harness.

Preferably, the tightening structure of the tail inner wall of the tail cover is conical-like, and the inner diameter of the tail inner wall is smaller from the middle part of the tail cover to the tail end.

The utility model has the advantages that:

1. the utility model provides a wire harness installation structure, the mounting and the shell convex tube are matched through the clamping groove and the buckle, the tail part of the mounting is fastened through the tail cover thread, the mounting is easy to detach, the mounting is not easy to damage, the working efficiency is improved, and the maintenance cost is reduced;

2. the utility model provides a wire harness installation structure, mounting and shell bulge tube inner wall all have the sealing washer with the pencil, and sealed length increases, reduces and reveals the risk;

3. the utility model provides a pencil mounting structure, mounting extension and increase tail-hood structure and shell fragment cooperation can effectively fix the pencil, prevent the pencil swing, further improve sealing performance and pencil tip screw fixation reliability.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is an assembly schematic view of a harness mounting structure in an embodiment;

FIG. 2 is a cross-sectional view of a wire harness mounting structure in accordance with an embodiment;

FIG. 3 is an enlarged view of a portion of the cross-section of FIG. 2;

FIG. 4 is an exploded view of a harness installation structure in accordance with an embodiment;

FIG. 5 is a schematic view of a fastener construction according to an embodiment;

fig. 6 is a schematic cross-sectional view of a tail cap according to an embodiment.

Wherein: 1. a housing; 11. a shell convex tube, 12 and a buckle; 2. a fixing member; 21. a card slot; 22. an external thread; 23. a spring plate; 3. a tail cover; 31. an internal thread; 32. a compact structure; 4. a seal ring; 5. a wire harness; 6. and (5) disassembling the gap.

Detailed Description

As shown in fig. 1-4, the utility model provides a wire harness installation structure, including casing 1, mounting 2, tail-hood 3, sealing washer 4. The wire harness 5 enters the interior of the housing 1 through the fixing member 2 and the inner wall of the housing boss tube 11. And a sealing ring 4 is arranged between the fixing piece 2, the inner wall of the shell convex tube 11 and the wiring harness 5.

The outer side of the shell 1 is provided with an integrally formed shell convex tube 11, and the surface of the shell convex tube 11 is provided with a wedge-shaped buckle 12.

As shown in fig. 5, the front portion of the fixing member 2 is provided with a clamping groove 21 for being matched and fixed with the buckle 12 on the convex tube 11 of the housing, the sealing ring 4 is fixed, the middle portion of the fixing member 2 is provided with an external thread 22, and the tail portion of the fixing member 2 is provided with an elastic sheet 23. The front part of the fixing part 2 is divided into an upper arc and a lower arc, a dismounting gap 6 is reserved between the inner diameter of the upper arc and the outer diameter of the shell convex tube 11, and the quick dismounting is realized through the gap. The external thread 22 in the middle of the fixing part 2 and the elastic sheet 23 at the tail part prolong the fixing part 2, and the wiring harness is favorably limited to shake. The tail of the sealing ring 4 is extended to the tail of the fixing part 2, the sealing length of the wire harness 5 is increased, and sealing failure caused by the peeling of the wire harness 5 is prevented.

As shown in fig. 6, the front part of the tail cover 3 is provided with an internal thread 31 adapted to the external thread 22 at the middle part of the fixing member 2, and the inner wall of the tail part of the tail cover 3 is provided with a tightening structure 32 adapted to the elastic sheet 23. The constriction 32 is cone-like in shape with a decreasing inner diameter from the middle to the tail end of the tail cap 3. Through the screw thread of screwing, the extrusion shell fragment further restricts the pencil and rocks.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A wiring harness mounting structure is characterized by comprising a shell (1), a fixing piece (2) and a tail cover (3);

the outer side of the shell (1) is provided with an integrally formed shell convex tube (11);

the front part of the fixed part (2) is matched and fixed with the convex tube (11) of the shell, the middle part of the fixed part (2) is provided with an external thread (22), and the tail part of the fixed part (2) is provided with an elastic sheet (23);

the front part of the tail cover (3) is provided with an internal thread (31) matched with the external thread (22) in the middle of the fixed part (2), and the inner wall of the tail part of the tail cover (3) is provided with a tightening structure (32) matched with the elastic sheet (23);

the wiring harness (5) enters the shell (1) through the fixing piece (2) and the inner wall of the shell convex tube (11).

2. The wire harness installation structure according to claim 1, wherein the surface of the shell convex tube (11) is provided with a wedge-shaped buckle (12), the front part of the fixing piece (2) is provided with a clamping groove (21), and the clamping groove (21) is matched and fixed with the buckle (12).

3. The wire harness installation structure according to claim 2, wherein a removal gap (6) is left between an inner diameter of a front portion of the fixing member (2) and an outer diameter of the housing boss tube (11).

4. The wire harness installation structure according to claim 1, wherein a seal ring (4) is further provided between the fixing member (2), the inner wall of the housing boss tube (11) and the wire harness (5).

5. Harness mounting structure according to claim 1, characterized in that the narrowing structure (32) of the tail inner wall of the tail cover (3) is cone-like with decreasing inner diameter from the middle to the tail end of the tail cover (3).