WO2022111620A1

WO2022111620A1 - Wire harness device for sliding door mechanism

Info

Publication number: WO2022111620A1
Application number: PCT/CN2021/133427
Authority: WO
Inventors: 史磊; 马良; 张�成
Original assignee: 一汽奔腾轿车有限公司
Priority date: 2020-11-30
Filing date: 2021-11-26
Publication date: 2022-06-02
Also published as: CN112455362A

Abstract

Disclosed in the present invention is a wire harness device for a sliding door mechanism, comprising a drag chain assembly (1), a vehicle body fixing mechanism (2), a vehicle door fixing mechanism (3), and a wire harness (5). The drag chain assembly (1) comprises a support section (11) and a bending section (12); the support section (11) and the bending section (12) are hinged to form a hollow structure; the other end of the support section (11) is connected to the vehicle body fixing mechanism (2), and the other end of the bending section (12) is hinged to the vehicle door fixing mechanism (3); the wire harness (5) passes through the inside of the drag chain assembly and extends out of the vehicle body fixing mechanism (2), and is protected by the drag chain assembly (1). The sliding door wire harness device of the present invention can adapt to a plurality of platform conditions, has no high requirement on a body-in-white structure of a vehicle, and can adapt to a large-range opening/closing and moving stroke.

Description

A wiring harness device for sliding door mechanism

technical field

The invention relates to a vehicle wiring harness device, in particular to a wiring harness device for a sliding door mechanism, and belongs to the technical field of vehicle sliding door wiring harness structures.

Background technique

The application platform of the wiring harness structure of the sliding door of the previous models has higher requirements on the structure of the rear floor of the vehicle body. It needs to be made into a flat structure as a whole, resulting in a lower overall chassis. When the rear part needs to be lifted, the body will form a ladder shape. At the time, the original structure could not solve this problem, and at the same time, due to the shape of the whole vehicle, the opening stroke of the sliding door also had higher requirements on the adaptability of the wiring harness device.

Patent Document 1 discloses a wire harness curling device in a sliding door of an automobile, belonging to the technical field of automobiles, comprising a bracket for fixing on the inner side of the sliding door, the inner part of the bracket is hollow, and a sheet-like elastic sheet is fixed inside the bracket. The wire harness penetrates into the bracket and can be fixed between the elastic member and the inner wall of the bracket. There is also a winding body in the bracket. Under the action of external force, the wire harness can overcome the elastic effect of the elastic member and drive the elastic member to be wound around the winding body superior. The wire harness retracting device is installed on the sliding door of the car, and can automatically adjust the length of the wire harness between the body and the sliding door according to the opening degree of the sliding door, preventing redundant wire harnesses from interfering with the body or the sliding door, effectively ensuring The reliability of the power supply of the car sliding door. However, it mainly relies on elastic parts, and the inelastic deformation of long-term use will cause the failure of the wire harness crimping device.

Patent Document 2 discloses a wire harness protection device, including a wire reel with a accommodating cavity, a wire inlet and a wire outlet are provided at both ends of the wire reel, and an elastic limit fixed at one end is arranged in the accommodating cavity. A positioning member, a channel for the wire harness to pass through is formed between the inner wall of the wire coil and the free end of the elastic limiting member, and the width of the channel is constrained by the elastic limiting member. The invention protects the wire harness used to connect the components on the vehicle body and the sliding door through the wire reel, so as to avoid the edges and corners of other components from being worn or scratched; It can also play the role of heat dissipation to avoid fire caused by the heat of the wire harness; the outer surface of the wire reel is provided with reinforcing ribs to increase the bearing capacity. However, it mainly relies on elastic components, and the inelastic deformation of long-term use will cause the failure of the wire harness protection device.

To sum up, it is very necessary and urgent to provide a sliding door wiring harness device that can adapt to various platform conditions, does not have high requirements on the body-in-white structure of the vehicle, and can adapt to a wide range of switching and moving strokes.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the purpose of the present invention is to provide a wiring harness device for a sliding door mechanism, including a drag chain assembly, an outer protective rubber part, a body fixing mechanism, a door fixing mechanism and a wiring harness, and the drag chain assembly is installed. On the outside of the wire harness, the wire harness passes through the inside of the towline assembly to protect the wire harness; the outer protective rubber part is wrapped on the outside of the towline assembly to prevent the visual leakage of the wire harness and play a certain protective role; One end is fixed on the vehicle body through the vehicle body fixing mechanism, and the other end is fixed on the sliding door through the vehicle door fixing mechanism, so as to play a fixed supporting role. The invention can adapt to various platform conditions, has no high requirements on the structure of the body-in-white of the whole vehicle, and can adapt to the sliding door wiring harness device of a wide range of switches and moving strokes.

The object of the present invention is achieved through the following technical solutions, in conjunction with the accompanying drawings:

A wiring harness device for a sliding door mechanism, comprising a drag chain assembly 1, a body fixing mechanism 2, a door fixing mechanism 3 and a wire harness 5; the drag chain assembly 1 includes a support section 11 and a bending section 12, and the support section 11 and The curved section 12 is hinged to form a hollow structure, the other end of the support section 11 is connected with the body fixing mechanism 2, the other end of the curved section 12 is hinged with the door fixing mechanism 3, and the wire harness 5 passes through the inside of the drag chain assembly and extends from the body fixing mechanism 2 , through the drag chain assembly 1 to protect the wire harness.

Further, the towline assembly 1 further includes an outer protective rubber piece 13, and the outer protective rubber piece 13 is wrapped on the outside of the towline assembly to prevent the visual leakage of the wire harness and play a certain protective role.

Further, the support section 11 of the drag chain assembly 1 is composed of several supporting section joints hinged in turn, and the bending section 12 of the drag chain assembly 1 is composed of several bending section joints hinged in turn, and the first section of the bending section 12 is curved. The segment joint is articulated with the last support segment joint of the support segment 11 .

Further, the support section joint is an integral structure, including the support section joint fixed end 111, the support section joint connection end 112 and the support section joint connection piece 113; the support section joint fixed end 111 is wider than the support section joint connection end 112, The rear of the joint fixed end 111 of the support section is provided with a connecting ear, the joint connecting piece 113 of the supporting section is located on both sides of the joint connecting end 112 of the supporting section, and the joint connecting end 112 of the supporting section of the latter section of the joint is connected to the front through the joint connecting piece 113 of the supporting section. A connecting ear of the support segment joint fixed end 111 of a support segment joint is hinged. The rear end of the joint fixed end 111 of the support section is provided with a joint rotation gap 1111 of the support section, and the front end of the joint fixed end 111 of the support section is provided with a tab. The relative rotation angle of the joint of the support segment is limited.

Further, the curved segment joint is an integral structure, including the curved segment joint fixed end 121, the curved segment joint connection end 122 and the curved segment joint connecting piece 123; the curved segment joint fixed end 121 is wider than the curved segment joint connection end 122, A connecting ear is provided at the rear of the joint fixed end 121 of the curved section, the joint connecting piece 123 of the curved section is located on both sides of the joint connecting end 122 of the curved section, and the joint connecting end 122 of the curved section of the latter section of the joint is connected to the front section 122 through the joint connecting piece 123 of the curved section. The connecting ears of the flexural joint fixed end 121 of a flexural joint are hinged. The rear end of the joint fixed end 121 of the curved section is provided with a joint rotation gap 1211 of the curved section, and the front end of the joint fixed end 121 of the curved section is provided with a tab, and the tab is used to cooperate with the joint rotation gap 1211 of the joint of the front section of the curved section. The relative rotation angle of the joint of the bending section is limited.

Further, the curved shape of the front end of the joint fixed end 111 of the support segment is different from the curved shape of the front end of the joint connection end 122 of the curved segment, so that the rotation angle between the joints of the bending segment is greater than the rotation angle between the joints of the supporting segment.

Further, the door fixing mechanism 3 includes a door fixing mechanism body 31 and a drag chain connecting frame 32 fixed on the vehicle door fixing mechanism body 31 , and the drag chain connecting frame 32 is hinged with the curved section 12 of the drag chain assembly 1 .

Further, the vehicle body fixing mechanism 2 includes a vehicle body fixing mechanism body 21, and the vehicle body fixing mechanism body 21 is provided with a wire harness passage 22 and a drag chain installation port 23 which are perpendicular to each other, and the drag chain installation port 23 is used for installing the drag chain assembly. In the straight section 11 of 1, the wire harness protrudes from the wire harness passage 22 after passing through the drag chain assembly 1.

Further, the wire harness device further includes a sealing rubber member 4 , and after the wire harness 5 is extended from the vehicle body fixing mechanism 2 , the wire harness terminals are sealed by the sealing rubber member 4 .

The present invention has the following beneficial effects:

The drag chain assembly of the present invention is composed of a supporting section, a bending section and an outer protective rubber piece, the supporting section and the curved section are hinged, and the outer protective rubber piece is covered on the outside. The support section is used to support the entire towline, to ensure the distance between the towline and the body, to prevent interference, and the curved section moves with the sliding door to protect the wire harness. The outer protective rubber part is attached to the outer side of the towline and the wire harness. The rubber part on the towline prevents the wire harness from being exposed visually, and at the same time plays a certain protective role. The rubber part on the wire harness acts as a waterproof seal on the body.

When the sliding door is opened, the support section supports the entire towline assembly outward to ensure that the towline assembly does not interfere with the body. The curved section opens with the sliding door to protect the wiring harness during the process. The central shaft rotates to ensure reliable structure. When closing, the process is reversed, and when the door is fully closed, the support section retracts to ensure that the door is closed.

Description of drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the drawings to be used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the contents of the embodiments of the present invention and these drawings without any creative effort.

1 is a schematic axonometric view of the structure of the present invention when the door is in a closed state and a sliding open state;

2 is a schematic front view of the structure of the present invention when the vehicle door is in a closed state and a sliding open state;

3 is a schematic diagram of the assembly structure of the door fixing mechanism and the vehicle body fixing mechanism of the towline assembly according to the present invention;

4 is a schematic diagram of the assembly structure of the support section and the bending section of the drag chain assembly according to the present invention;

5 is a top view of the assembly structure of the support section and the bending section of the drag chain assembly according to the present invention;

6 is a front view of the assembly structure of the support section and the bending section of the drag chain assembly according to the present invention;

7 is a schematic axonometric view of the structure of the outer protective rubber part of the drag chain assembly according to the present invention;

8 is a front view of the structure of the outer protective rubber part of the drag chain assembly according to the present invention;

9 is a top view of the structure of the outer protective rubber part of the drag chain assembly according to the present invention;

Figure 10 is a joint axonometric view of the support section of the drag chain assembly according to the present invention;

11 is a three-dimensional view of the joint plane of the support section of the drag chain assembly according to the present invention;

Figure 12 is a joint axonometric view of the bending section of the drag chain assembly according to the present invention;

13 is a three-dimensional view of the joint plane of the curved section of the drag chain assembly according to the present invention;

Figure 14 is an axonometric view of the door fixing mechanism according to the present invention;

FIG. 15 is a three-dimensional plan view of the vehicle door fixing mechanism according to the present invention;

Figure 16 is an axonometric view of the vehicle body fixing mechanism according to the present invention;

Figure 17 is a three-plan view of the vehicle body fixing mechanism according to the present invention;

Figure 18 is an axonometric view of the sealing rubber part according to the present invention;

Figure 19 is an axonometric view of the sealing rubber part according to the present invention;

In the picture:

1- Towline assembly; 2- Body fixing mechanism; 3- Door fixing mechanism; 4- Sealing rubber part; 5- Wiring harness; 11- Support section; 12- Bending section; 112-joint joint end of supporting segment; 113-joint joint piece of supporting segment; 1111-joint rotation notch of supporting segment; 121-joint fixed end of curved segment; 122-joint joint end of curved segment; 123-joint joint of curved segment sheet; 1211-bending section rotation gap; 21-door fixing mechanism body; 22-wire harness crossing; 23-towline installation port; 31-door fixing mechanism body; 32-towline connection frame.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

As shown in FIGS. 1 to 6 , a wiring harness device for a sliding door mechanism includes a drag chain assembly 1 , a body fixing mechanism 2 , a door fixing mechanism 3 and a wire harness 5 ; the drag chain assembly 1 includes a support section 11 And the bending section 12, the supporting section 11 and the bending section 12 are hinged to form a hollow structure, the other end of the supporting section 11 is connected with the vehicle body fixing mechanism 2, the other end of the bending section 12 is hinged with the door fixing mechanism 3, and the wire harness 5 passes through the inside of the drag chain assembly. Pass through and extend from the body fixing mechanism 2, and protect the wire harness through the drag chain assembly 1.

As shown in FIG. 7 to FIG. 9 , the drag chain assembly 1 further includes an outer protective rubber piece 13 , which is wrapped on the outside of the drag chain assembly to prevent the visual leakage of the wire harness and play a certain protective role. .

As shown in FIGS. 10 and 11 , the support section 11 of the drag chain assembly 1 is composed of several support section joints that are hinged in sequence.

The support section joint is an integral structure, including the support section joint fixed end 111, the support section joint connection end 112 and the support section joint connection piece 113; the support section joint fixed end 111 is wider than the support section joint connection end 112, and the support section joint is fixed The end of the end 111 is provided with connecting ears, the support section joint connecting piece 113 is located on both sides of the support section joint connecting end 112, and the support section joint connecting end 112 of the back section supporting section joint passes through the supporting section joint connecting piece 113 and the previous section supporting section. The connecting ear of the joint fixed end 111 of the support section of the joint is hinged. The rear end of the joint fixed end 111 of the support section is provided with a joint rotation gap 1111 of the support section, and the front end of the joint fixed end 111 of the support section is provided with a tab. The relative rotation angle of the joint of the support segment is limited.

As shown in FIGS. 12 and 13 , the bending section 12 of the drag chain assembly 1 is composed of several bending section joints which are hinged in sequence.

The curved segment joint has an integrated structure, including a curved segment joint fixed end 121, a curved segment joint connection end 122 and a curved segment joint connecting piece 123; the curved segment joint fixed end 121 is wider than the curved segment joint connection end 122, and the curved segment joint is fixed The tail of the end 121 is provided with a connecting ear, the joint connecting piece 123 of the curved section is located on both sides of the joint connecting end 122 of the curved section, and the joint connecting end 122 of the curved section of the latter section of the joint is connected to the previous section of the joint through the joint connecting piece 123 of the curved section. The connecting ear of the joint fixed end 121 of the curved section of the joint is hinged. The rear end of the joint fixed end 121 of the curved section is provided with a joint rotation gap 1211 of the curved section, and the front end of the joint fixed end 121 of the curved section is provided with a tab, and the tab is used to cooperate with the joint rotation gap 1211 of the joint of the front section of the curved section. The relative rotation angle of the joint of the bending section is limited.

As shown in FIG. 11 and FIG. 13 , the curved shape of the front end of the joint fixed end 111 of the support segment is different from the curved shape of the front end of the joint connection end 122 of the curved segment, so that the angle between the joints of the curved segments is larger than that between the joints of the supporting segments corner.

As shown in FIG. 14 and FIG. 15 , the door fixing mechanism 3 includes a door fixing mechanism body 31 and a drag chain connecting frame 32 fixed on the vehicle door fixing mechanism body 31 . The drag chain connecting frame 32 and the bending chain assembly 1 are bent Segment 12 is hinged.

As shown in FIG. 16 and FIG. 17 , the vehicle body fixing mechanism 2 includes a vehicle body fixing mechanism body 21 . The vehicle body fixing mechanism body 21 is provided with mutually perpendicular wire harness passages 22 and towline installation openings 23 . The towline installation openings 23 are used for In order to install the straight section 11 of the towline assembly 1, the wire harness passes through the towline assembly 1 and then protrudes from the wire harness passage 22.

As shown in FIGS. 1 , 2 , 19 and 19 , the wire harness device further includes a sealing rubber member 4 , and after the wire harness 5 extends from the vehicle body fixing mechanism 2 , the wire harness terminals are sealed by the sealing rubber member 4 .

Example

This embodiment is a wiring harness device for a sliding door mechanism, which is mainly composed of three parts:

Drag chain assembly: It consists of a support section, a bending section, and an outer protective rubber piece. The supporting section and the bending section are hinged, and the outer protective rubber piece is covered on the outside. The support section is used to support the entire towline, to ensure the distance between the towline and the body, to prevent interference, and the curved section moves with the sliding door to protect the wire harness. The outer protective rubber part is attached to the outer side of the towline and the wire harness. The rubber part on the towline prevents the wire harness from being exposed visually, and at the same time plays a certain protective role. The rubber part on the wire harness acts as a waterproof seal on the body.

Fixed structure: The body fixing mechanism fixes one end of the support section of the towline assembly on the body, and the door fixing mechanism fixes one end of the curved section of the towline assembly on the sliding door, which is the fixed and main stress part of the entire structure.

Wiring harness: used to conduct power and signals of body electrical appliances and electrical appliances on the sliding door.

The working principle of the present invention is introduced as follows:

Connect the support section and the bent end as required, then attach the outer protective rubber part to the outside of the towline structure, and pass the wire harness through the entire towline assembly; then connect the body fixing mechanism and the vehicle fixing mechanism to the towline structure respectively. Make the connections, then crimp the terminals of the harness into the rubber seals. When installing the vehicle body, use the fastening bolts to install the vehicle body fixing mechanism and the door fixing mechanism on the vehicle body and the vehicle door, respectively.

As shown by the dotted lines in Figure 1 and Figure 2, when the sliding door is opened, the support section supports the entire towline assembly outwards to ensure that the towline assembly does not interfere with the body, and the curved section opens with the sliding door. The wiring harness is protected, and the fixed structure at the end of the body can rotate along the central axis with the sliding to ensure the reliability of the structure.

As shown in the realization part of Figure 1 and Figure 2, when closing, the process is reversed, and when the door is completely closed, the support section is retracted to ensure that the door is closed.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims

A wire harness device for a sliding door mechanism, characterized in that it comprises a drag chain assembly (1), a body fixing mechanism (2), a door fixing mechanism (3) and a wire harness (5); the drag chain assembly (1) ) includes a support section (11) and a bending section (12), the support section (11) and the bending section (12) are hinged to form a hollow structure, the other end of the support section (11) is connected with the vehicle body fixing mechanism (2), and the bending section (12) ) The other end is hinged with the door fixing mechanism (3), the wire harness (5) passes through the inside of the towline assembly and protrudes from the body fixing mechanism (2), and the wire harness is protected by the towline assembly (1).
A wire harness device for a sliding door mechanism according to claim 1, characterized in that, the drag chain assembly (1) further comprises an outer protective rubber piece (13), and the outer protective rubber piece (13) wraps Cover the outside of the drag chain assembly.
A wiring harness device for a sliding door mechanism according to claim 1, characterized in that, the support segment (11) of the drag chain assembly (1) is formed by a plurality of support segment joints hinged in sequence, and the drag chain assembly (1) is hinged in sequence. The bending section (12) of the chain assembly (1) is composed of several bending section joints which are articulated in sequence, and the first bending section joint of the bending section (12) is articulated with the last supporting section joint of the supporting section (11).
A wire harness device for a sliding door mechanism according to claim 3, characterized in that the support section joint is an integral structure, comprising a support section joint fixed end (111) and a support section joint connection end (112) and a support segment joint connection piece (113); the width of the support segment joint fixed end (111) is greater than that of the support segment joint connection end (112), the rear of the support segment joint fixation end (111) is provided with a connecting ear, and the support segment joint connection piece (113) ) are located on both sides of the support section joint end (112), the support section joint end (112) of the support section joint of the latter section is connected to the support section joint fixed end of the previous section support section joint through the support section joint connecting piece (113) The connecting ears of (111) are hinged.
A wire harness device for a sliding door mechanism according to claim 3, characterized in that the joint of the curved section is an integral structure, comprising a joint fixed end (121) of the curved section and a joint connection end of the curved section (122) and a curved segment joint connecting piece (123); the width of the curved segment joint fixing end (121) is larger than that of the curved segment joint connecting end (122), a connecting ear is provided at the tail of the curved segment joint fixing end (121), and the curved segment joint connecting piece (123) ) are located on both sides of the joint joint end (122) of the curved section, and the joint joint end (122) of the curved section of the rear section of the joint is connected to the joint fixed end of the joint of the previous section of the joint through the joint connecting piece (123) of the curved section. The connecting lugs of (121) are hinged.
A wiring harness device for a sliding door mechanism according to claim 1, wherein the vehicle door fixing mechanism (3) comprises a vehicle door fixing mechanism body (31) and is fixed on the vehicle door fixing mechanism body (31) The drag chain connecting frame (32) is hinged with the curved section (12) of the drag chain assembly (1).
A wiring harness device for a sliding door mechanism according to claim 1, wherein the vehicle body fixing mechanism (2) comprises a vehicle body fixing mechanism body (21), and the vehicle body fixing mechanism body (21) is provided with The wire harness passage (22) and the drag chain installation port (23) are perpendicular to each other. The drag chain installation port (23) is used to install the straight section 11 of the drag chain assembly (1), and the wire harness passes through the drag chain assembly (1) and then protrude from the wire harness port (22).
A wiring harness device for a sliding door mechanism according to claim 1, characterized in that, the wiring harness device further comprises a sealing rubber part (4), and the wiring harness (5) is extended from the vehicle body fixing mechanism (2) after the wiring harness (5) is extended. , and seal the wire harness terminal with the sealing rubber piece (4).