Specific fixing device for automobile EPS system wire harness

Through the combined structure of bellows and cylinder parts, combined with multi-layer sealing design, the stability and waterproof sealing problems of the EPS system wiring harness are solved, and effective fixation and protection of the wiring harness are achieved.

CN223348350UActive Publication Date: 2025-09-16PRETTL ELECTRIC SHANGHAI CO LTD
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Patent Information

Application Number
CN202422618022.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-09-16
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

The existing automotive EPS system wiring harness lacks stability and waterproof sealing after installation, making it vulnerable to damage in harsh environments.

Method used

It adopts a combination structure of bellows, connecting cover and cylinder fittings, uses "L"-shaped cable entry guide cap and cable entry cover to fix with buckles, and combines with multiple elastic seals and limit rings to form a multi-layer protection and sealing structure.

Benefits of technology

It achieves stable installation and effective waterproof sealing of the EPS system wiring harness, improves the protection and fixation effect of the wiring harness, prevents water and dust from entering the sensor connector, and extends the service life of the wiring harness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a specific fixing device for an automobile EPS system wire harness. The specific fixing device comprises a corrugated pipe, a connecting cover and a cylinder penetrating piece. The connecting cover comprises a cable inlet guide cap and a cable inlet cover, the cable inlet guide cap and the cable inlet cover are both of a semi-cylinder structure with an L-shaped cross section, and the cable inlet guide cap and the cable inlet cover are buckled and fixed through a buckle; the corrugated pipe and the cylinder penetrating piece are clamped and fixed to the two ends of the connecting cover respectively. The cross section of the cylinder penetrating piece is in an H shape, a plurality of wire penetrating openings are formed in the inner end face of the cylinder penetrating piece in a penetrating mode, and a first elastic sealing piece and a second elastic sealing piece which are provided with center through holes are arranged at the two ends in the cylinder penetrating piece respectively. According to the specific fixing device for the automobile EPS system wire harness, the EPS system wire harness can be stably installed, and meanwhile effective waterproof sealing can be provided for the installed EPS system wire harness.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile wiring harness accessories, in particular to a specific fixing device for an automobile EPS system wiring harness. Background Art

[0002] Electric Power Steering (EPS), short for Electronic Power Steering, utilizes power generated by an electric motor to assist the driver in steering. While the components of an EPS vary from vehicle to vehicle, they are generally similar. It typically consists of a torque (steering) sensor, an electronic control unit, an electric motor, a speed reducer, a mechanical steering gear, and a battery power supply. The wiring harness that transmits signals and commands within the EPS (Electric Power Steering, abbreviated as EPS) has also been continuously refined and developed.

[0003] Based on the working environment of the EPS system wiring harness, it is particularly necessary for it to have good waterproof sealing and stability after installation. Based on this, the present application proposes a specific fixing device for the automobile EPS system wiring harness to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a specific fixing device for an automobile EPS system wiring harness, which can stably install the EPS system wiring harness and provide an effective waterproof seal for the installed EPS system wiring harness.

[0005] In order to solve the above technical problems, the utility model provides a specific fixing device for the wiring harness of the automobile EPS system, comprising a bellows, a connection cover and a cylinder-penetrating member;

[0006] The connection cover includes a cable inlet guide cap and a cable inlet cover, both of which are semi-cylindrical structures with an L-shaped cross-section, and the cable inlet guide cap and the cable inlet cover are fixed by snap fastening;

[0007] The bellows and the cylinder-piercing member are respectively clamped and fixed at both ends of the connection cover;

[0008] The cross section of the through-cylinder component is "H"-shaped, and a plurality of threading holes are opened through the inner end surface of the through-cylinder component. A first elastic sealing component and a second elastic sealing component each having a central through hole are respectively provided at both ends of the through-cylinder component.

[0009] Furthermore, both ends of the inner side of the connection cover are provided with limiting rings, and the outer side wall of the cylinder member is provided with limiting grooves.

[0010] Furthermore, the first elastic seal is located inside the cylinder member near one end of the connecting cover, there are multiple first elastic seals, the first elastic seal adopts a waterproof plug, and the inner end surface of the cylinder member is located at the threading port and is provided with a sealing tube for installing the first elastic seal.

[0011] Furthermore, the second elastic seal is located at one end of the cylinder-piercing member away from the connecting cover, and the second elastic seal is a three-serrated seal.

[0012] Furthermore, the bellows is a closed bellows.

[0013] Furthermore, it also includes an adhesive tape, which is located at an end of the cylinder-piercing member away from the connection cover.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] The utility model discloses a specific fixing device for an automobile EPS system wiring harness, which can provide effective protection, fixing and support for the installed EPS system wiring harness, and can also provide effective waterproof sealing for the installed EPS system wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a specific fixing device for the automotive EPS system wiring harness of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection cover connecting the bellows and the cylinder-penetrating member in the specific fixing device of the automobile EPS system wiring harness of the present utility model;

[0018] Figure 3 This is a schematic diagram of the overall structural installation of a specific fixing device for an automotive EPS system wiring harness of the present invention.

[0019] In the figure: 1. Bellows; 2. Connecting cover; 21. Cable entry guide cap; 22. Cable entry cover; 3. Cylinder-through piece; 31. Limiting groove; 32. Sealing cylinder; 4. First elastic sealing piece; 5. Second elastic sealing piece; 6. Cable; 7. Sensor connector; 8. Limiting ring; 9. Tape. DETAILED DESCRIPTION

[0020] The following is a more detailed description of the specific securing device for the automotive EPS system wiring harness of the present invention, with reference to a schematic diagram. This diagram illustrates a preferred embodiment of the present invention. It should be understood that those skilled in the art may modify the present invention as described herein while still achieving the beneficial effects of the present invention. Therefore, the following description should be understood as a general guide for those skilled in the art and not as a limitation of the present invention.

[0021] The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0022] like Figure 1 As shown, the embodiment of the utility model proposes a specific fixing device for the wiring harness of the automobile EPS system, including a bellows 1, a connecting cover 2 and a cylinder member 3;

[0023] The connection cover 2 includes a cable inlet guide cap 21 and a cable inlet cover 22. Both the cable inlet guide cap 21 and the cable inlet cover 22 are semi-cylindrical structures with an L-shaped cross section, and the cable inlet guide cap 21 and the cable inlet cover 22 are fixed by snap fastening;

[0024] The bellows 1 and the cylinder member 3 are respectively clamped and fixed at both ends of the connection cover 2;

[0025] The cross section of the through-cylinder member 3 is "H"-shaped, and a plurality of threading holes are opened through the inner end surface of the through-cylinder member 3, and a first elastic seal 4 and a second elastic seal 5 each having a central through hole are respectively provided at both ends of the through-cylinder member 3.

[0026] Specifically, with reference Figure 3 The end of the cable 6 of the EPS system harness passes through the corrugated tube 1, the connecting cover 2, the first elastic seal 4, the threading port of the cylinder part 3 and the second elastic seal 5 in sequence, and then connects to the sensor connector 7. When installing the EPS system harness, first connect the sensor connector 7 to the sensor, and then fix the cylinder part 3 in the corresponding position. Due to the setting of the first elastic seal 4 and the second elastic seal 5 in the cylinder part 3, the left and right areas of the fixed installation of the cylinder part 3 are well isolated, preventing water, dust and other impurities from entering the right area from the left area through the cylinder part 3 to affect the sensor connector 7 of the EPS system harness. At the same time, the first elastic seal 4 and the second elastic seal 5 can effectively ensure the stable installation of the cable 6 and the cylinder part 3. After the cylinder part 3 is fixed, the effect of stabilizing the cable 6 is achieved. At the same time, the corrugated tube 1 covers the cable 6 located in the left area of ​​the EPS system harness. The corrugated tube 1 has a certain flexibility and has high fatigue resistance under the action of cyclic stress, that is, the corrugated tube 1 plays a role in protecting the cable 6.

[0027] In summary, the specific fixing device for the automobile EPS system wiring harness provided in this embodiment can provide effective protection, fixation and support for the installed EPS system wiring harness, and at the same time provide effective waterproof sealing for the installed EPS system wiring harness.

[0028] In the above embodiment, preferably, the bellows 1 is a closed bellows.

[0029] In a specific embodiment, in conjunction with reference Figure 2 , both ends of the inner side of the connecting cover 2 are provided with limiting rings 8, and the outer side wall of the cylinder member 3 is provided with limiting grooves 31.

[0030] The limiting ring 8 at one end of the inner side of the connecting cover 2 clamps the outer wall of the bellows 1, and the limiting ring 8 at the other end of the inner side of the connecting cover 2 clamps the limiting groove 31 on the outer wall of the cylinder member 3, thereby achieving a stable connection between the bellows 1 and the cylinder member 3.

[0031] In a specific embodiment, the first elastic seal 4 is located inside the cylinder member 3 near one end of the connecting cover 2, there are multiple first elastic seals 4, the first elastic seal 4 adopts a waterproof plug, and the inner end surface of the cylinder member 3 is located at the threading port position and is provided with a sealing tube 32 for installing the first elastic seal.

[0032] Specifically, the first elastic seal 4 is installed in the sealing tube 32, and its outer wall is tightly fitted with the outer wall of the sealing tube 32, and its end is fitted with the inner end face of the through-cylinder part 3. After the cable 6 is bundled, it passes through multiple first elastic seals 4 in sequence and then passes through the threading port on the through-cylinder part 3. The inner wall of the first elastic seal 4 is tightly fitted with the cable 6, realizing the first waterproof seal.

[0033] In another embodiment, the second elastic sealing member 5 is located at an end of the cylinder-piercing member 3 away from the connecting cover, and the second elastic sealing member 5 is a three-serrated sealing member.

[0034] Specifically, after the cable 6 passes through the threading hole on the cylinder member 3 through the first elastic seal 4, it is passed through the second elastic seal 5 as a whole. The inner wall of the second elastic seal 5 is in close contact with the side wall of the cable 6, the outer wall of the second elastic seal 5 is in close contact with the inner wall of the cylinder member 3, and the end face of the second elastic seal 5 is in close contact with the inner end face of the cylinder member 3, thereby realizing a second waterproof seal.

[0035] In a specific embodiment, the specific fixing device of the automobile EPS system wiring harness also includes a tape 9, which is located at the end of the cylinder-piercing member 3 away from the connecting cover 2. When in use, the tape 9 is wrapped around the corresponding position of the cable 6 to further fix the cable 6, avoid clutter in the wiring harness, and at the same time play a certain identification role.

[0036] In summary, the utility model discloses a specific fixing device for an automobile EPS system wiring harness, which can provide effective protection, fixation and support for the installed EPS system wiring harness, and at the same time provide an effective waterproof seal for the installed EPS system wiring harness.

[0037] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A specific fixing device for automobile EPS system wiring harness, characterized in that: Including bellows, connecting cover and cylinder fittings; The connection cover includes a cable inlet guide cap and a cable inlet cover, both of which are semi-cylindrical structures with an "L"-shaped cross-section, and the cable inlet guide cap and the cable inlet cover are fixed by snap fastening; The bellows and the cylinder-piercing member are respectively clamped and fixed at both ends of the connection cover; The cross section of the through-cylinder component is "H"-shaped, and a plurality of threading holes are opened through the inner end surface of the through-cylinder component. A first elastic sealing component and a second elastic sealing component, both of which have a central through hole, are respectively provided at both ends of the through-cylinder component.

2. The specific fixing device for automobile EPS system wiring harness according to claim 1, characterized in that: Limiting rings are provided at both ends of the inner side of the connection cover, and limiting grooves are provided on the outer side wall of the cylinder penetration member.

3. The specific fixing device for automobile EPS system wiring harness according to claim 1, characterized in that: The first elastic seal is located inside the cylinder member near one end of the connecting cover. There are multiple first elastic seals. The first elastic seal adopts a waterproof plug. The inner end surface of the cylinder member is located at the threading port and is provided with a sealing tube for installing the first elastic seal.

4. The specific fixing device for automobile EPS system wiring harness according to claim 1, characterized in that: The second elastic sealing member is located at one end of the cylinder-piercing member away from the connection cover, and the second elastic sealing member is a three-serrated sealing member.

5. The specific fixing device for automobile EPS system wiring harness according to claim 1, characterized in that: The bellows is a closed bellows.

6. The specific fixing device for automobile EPS system wiring harness according to claim 1, characterized in that: It also includes an adhesive tape, which is located at an end of the cylinder-piercing member away from the connecting cover.