A kink resistant rubber seal wire harness assembly

Abstract

The utility model relates to the technical field of wiring harness assembly provides a kind of distortion-resistant rubber sealing wiring harness assembly, including integrated wiring harness and open mould piece;The integrated wiring harness is worn in the inside of open mould piece;The integrated wiring harness includes protective sleeve and wire, and wire is worn in the inside of protective sleeve;The open mould piece includes protective sleeve and chassis, and the protective sleeve is swing work piece, and the chassis is fixed work piece, and with equipment end detachably connected fixed;The hole body in the end of protective sleeve has integral male die, and the extrusion of the rolling contact formed by abutting against protective sleeve.This utility model is through the unique male die dynamic sealing structure and L type ring groove fixed design, effectively solve the problem that traditional wiring harness sealing is easy to fail under high-frequency distortion working condition, with the advantages of excellent sealing performance, fatigue resistance, strong durability and convenient assembly, especially suitable for frequently active occasions such as vehicle door, robot joint etc.

Description

Technical Field

[0001] This utility model relates to the field of wire harness assembly technology, and more specifically, to a torsion-resistant rubber-sealed wire harness assembly. Background Technology

[0002] In applications such as car doors, robot joints, and moving parts of heavy machinery that require frequent reciprocating motion, the wiring harness assemblies used must not only have excellent electrical connection performance, but also maintain reliable sealing and mechanical durability under long-term dynamic bending and torsional stress.

[0003] Traditional wire harness sealing structures mostly use ordinary rubber molded parts. Although they have a certain static waterproof and dustproof capability, they are prone to material fatigue, cracks, and reduced deformation recovery ability under continuous dynamic stress, which leads to sealing failure. This allows moisture, dust, and other foreign objects to enter the equipment, seriously affecting the safety and service life of the equipment components.

[0004] Therefore, a new type of wire harness sealing structure is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a torsion-resistant rubber-sealed wire harness assembly, which solves the problems of sealing failure and shortened lifespan caused by torsion in wire harnesses in high-frequency applications in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A torsion-resistant rubber-sealed wire harness assembly includes an integrated wire harness and a molded component;

[0008] The integrated wire harness passes through the interior of the molded component;

[0009] The integrated wiring harness includes a protective sleeve and wires, with the wires passing through the inside of the protective sleeve;

[0010] The mold-opening component includes a protective sleeve and a chassis. The protective sleeve is a swingable movable component, and the chassis is a fixed component for detachably connecting and fixing to the equipment end.

[0011] The protective sleeve has an integrally formed punch inside the hole at the end, and the punch abuts against the outer surface of the protective sleeve to form a rolling contact compression seal.

[0012] Preferably, there are multiple punches arranged at equal intervals, and concave arc grooves are formed between adjacent punches.

[0013] Preferably, the arc groove is the deformation and movement space of the punch.

[0014] Preferably, the protective sleeve includes a threading sleeve and a torsion sleeve, wherein the threading sleeve is a free-moving end, and the torsion sleeve is connected to the chassis to form an anti-torsion fixed end.

[0015] Preferably, a raised rib is fixed on one side of the chassis and is fixedly connected to the outer side of the torsion sleeve.

[0016] Preferably, the upper end of the chassis has an annular groove with an L-shaped cross-section.

[0017] Preferably, the portion between the outer side of the chassis and the annular groove forms an elastically deformable dial ring.

[0018] The beneficial effects of this utility model are:

[0019] 1. The wire harness assembly, composed of highly elastic mold opening parts and integrated wire harness, utilizes the rolling contact formed by the punch structure and the protective sleeve to maintain a tight fit under dynamic working conditions such as frequent twisting and bending, effectively preventing the intrusion of moisture, dust and other contaminants, and significantly improving the protection level and long-term reliability of the internal components of the equipment.

[0020] 2. The unique "L"-shaped groove formed by the opening of the annular groove enables quick and stable snap-fit ​​fixing with the equipment end. The gradient hole design inside the protective sleeve facilitates wire harness installation and enhances the stability of wire harness clamping. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the internal structure of the mold opening component;

[0024] Figure 3 for Figure 1 A schematic diagram of the internal structure of the inlet sleeve;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Integrated wire harness; 101. Protective sleeve; 102. Wire; 2. Mold opening component; 201. Protective sleeve; 2011. Wire threading sleeve; 20111. Punch; 20112. Arc groove; 2012. Torsion sleeve; 202. Chassis; 2021. Ring groove; 2022. Ring; 203. Rib. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "opening", "top and bottom", "thickness", "top", "middle", "length", "inner" and "around" indicate the orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] A torsion-resistant rubber sealing wire harness assembly is designed to enhance the torsion resistance and sealing performance of the wire harness under high-frequency motion conditions. It uses a mold opening member 2 that is fixed at one end and swings at the other end. The punch 20111 inside the swinging end abuts against the outer side of the protective sleeve 101 in real time to form a dynamic sealing effect, which realizes stable sealing under dynamic working conditions such as frequent twisting and bending, and meets the needs of robots and other devices that require frequent movement.

[0030] In some embodiments, the specific structure of the torsion-resistant rubber sealing wire harness assembly is as follows: Figure 1-3 As shown, it includes an integrated wire harness 1 and a mold opening component 2, with the integrated wire harness 1 passing through the mold opening component 2;

[0031] It should be noted that the entire mold-opening part 2 is made of a rubber material with high elasticity, high fatigue resistance, and aging resistance;

[0032] Preferably, silicone rubber, EPDM rubber, or chloroprene rubber can be used;

[0033] The integrated wire harness 1 includes a protective sleeve 101 and wires 102, with multiple strands of wires 102 passing through the inside of the protective sleeve 101;

[0034] The mold opening component 2 includes a swingable protective sleeve 201 and a chassis 202 fixed to the end of the equipment;

[0035] Among them, the internal hole of the protective sleeve 201 is a constricted structure, and the internal hole of the chassis 202 is an enlarged structure;

[0036] Furthermore, the inner side of the closing hole of the protective sleeve 201 is integrally formed with a punch 20111, the cross section of which is a semi-circular structure that protrudes in the axial direction, and a recessed arc groove 20112 is formed between adjacent punches 20111.

[0037] Understandably, the protruding punch 20111 presses against the outer side of the protective sleeve 101. When the protective sleeve 201 swings, the contact surface between the protective sleeve 101 and the punch 20111 slides, maintaining a dynamic sealing effect. This effectively prevents external moisture, dust, and other foreign objects from entering the equipment, providing real-time movable protection and insulation.

[0038] It should be noted that the conductor 102 is inserted into the protective sleeve 101 and fixed by an interference fit. That is, the protective sleeve 101 is made of elastic material and its inner diameter in its natural state is slightly smaller than the outer diameter of the integrated conductor bundle.

[0039] After assembly, the protective sleeve 101 undergoes elastic deformation and generates a continuous radial clamping force on the internal wire bundle, which securely binds the multiple wires 102 into a whole through friction, preventing them from sliding relative to each other.

[0040] like Figure 2 As shown, the protective sleeve 201 includes a wire threading sleeve 2011 at the distal end and a torsion sleeve 2012 fixedly connected to the chassis 202;

[0041] Among them, the middle section between threading sleeve 2011 and twisting sleeve 2012 is a transition section;

[0042] It should be noted that the diameter of the hole gradually increases from the distal end to the transition section to the inner hole of the torsion sleeve 2012. The integrated wire harness 1 is inserted from the larger diameter end and exits from the smaller diameter end, which not only makes operation convenient but also forms a self-locking mechanism.

[0043] like Figure 2 As shown, a protruding rib 203 extends from one side of the upper end of the chassis 202, located on the side away from the wire threading sleeve 2011;

[0044] One end of the rib 203 is connected to the torsion sleeve 2012.

[0045] like Figure 2 As shown, an annular groove 2021 is provided on the upper surface of the chassis 202 near the edge, so that a pawl 2022 is formed between the outer side of the chassis 202 and the outer side inside the annular groove 2021.

[0046] Among them, the annular groove 2021 and the dial ring 2022 form a concave-convex structure, and the dial ring 2022 can deform accordingly under the action of external force;

[0047] Furthermore, the cross-section of the annular groove 2021 is an "L"-shaped annular structure, which is fixedly installed by the cooperation of the protruding ribs in the mounting holes at the equipment end.

[0048] The working principle of this utility model is as follows: the chassis 202 is fixed to the equipment interface through the L-shaped annular groove 2021. When the integrated wire harness 1 is subjected to external pulling or torsion, the force is transmitted to the protective sleeve 201, causing it to sway relative to the fixed chassis 202. During this process, the punch 20111 at the end of the protective sleeve 201 keeps rolling and squeezing the protective sleeve 101, and the sealing contact point is dynamically adjusted accordingly, avoiding local stress concentration and material fatigue, thereby achieving a durable and reliable seal in a dynamic environment.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A torsion-resistant rubber-sealed wire harness assembly, characterized in that: Includes integrated wire harness (1) and molded parts (2); The integrated wire harness (1) passes through the interior of the molded part (2); The integrated wire harness (1) includes a protective sleeve (101) and a wire (102), with the wire (102) passing through the inside of the protective sleeve (101); The mold opening component (2) includes a protective sleeve (201) and a chassis (202). The protective sleeve (201) is a movable component that can swing, and the chassis (202) is a fixed component used to detachably connect and fix it to the equipment end. The protective sleeve (201) has an integrally formed punch (20111) in the hole at the end, and the punch (20111) abuts against the outer surface of the protective sleeve (101) to form a rolling contact compression seal.

2. The torsion-resistant rubber sealing wire harness assembly according to claim 1, characterized in that: The punches (20111) are multiple and arranged at equal intervals, and a recessed arc groove (20112) is formed between adjacent punches (20111).

3. The torsion-resistant rubber sealing wire harness assembly according to claim 2, characterized in that: The arc groove (20112) is the deformation and movement space of the punch (20111).

4. The torsion-resistant rubber sealing wire harness assembly according to claim 1, characterized in that: The protective sleeve (201) includes a threading sleeve (2011) and a torsion sleeve (2012). The threading sleeve (2011) is a free-moving end, and the torsion sleeve (2012) is connected to the chassis (202) to form an anti-torsion fixed end.

5. The torsion-resistant rubber sealing wire harness assembly according to claim 4, characterized in that: A rib (203) is fixed on one side of the chassis (202) and is fixedly connected to the outer side of the torsion sleeve (2012).

6. The torsion-resistant rubber sealing wire harness assembly according to claim 1, characterized in that: The upper end of the chassis (202) is provided with an annular groove (2021) with an L-shaped cross section.

7. The torsion-resistant rubber sealing wire harness assembly according to claim 6, characterized in that: The portion between the outer side of the chassis (202) and the annular groove (2021) forms an elastically deformable swivel ring (2022).

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