A wire harness waterproofing and soundproofing rubber assembly

Abstract

The utility model discloses a kind of wire harness waterproof sound insulation's rubber components, it is related to vehicle front compartment wire harness rubber part technical field, including rubber part main body, the upper end of rubber part main body is equipped with several fixed holes, metal bush is respectively equipped in fixed hole, the upper end of rubber part main body is fixed with wire harness hole column, the upper end of rubber part main body is equipped with metal backing plate, connecting hole is equipped on metal backing plate, the upper end of metal backing plate is equipped with metal pressboard, metal pressboard is connected with rubber part main body, the upper end of fixed hole is concentrically equipped with counterbore respectively, the upper end of metal bush is respectively equipped with the flange that outwardly bends, the flange of metal bush and counterbore one-to-one, symmetrically equipped with the joint interface on wire harness hole column, the lower end of wire harness hole column is fixed with boss, through the device structure effectively barrier automobile front compartment silt and sewage into cab, barrier rubber part main body and sheet metal's dry and wet area, play sealing effect, and can significantly improve noise barrier effect.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber components for vehicle front compartment wiring harnesses, specifically a waterproof and soundproof rubber assembly for wiring harnesses. Background Technology

[0002] Wiring harness rubber parts refer to elastic rubber components used at the through-holes in the body sheet metal during the process of wiring harnesses passing through or being assembled onto sheet metal. These components ensure good waterproofing, wiring harness protection, and a smooth transition. Because car engines generate noise during operation, while a quiet cabin environment is essential for comfort, the wiring harness connecting the engine compartment and the cabin requires openings in the sheet metal. Therefore, the rubber parts used here need to meet multiple requirements: protecting the wiring harness, blocking noise, and providing a seal. In the past, NVH (Noise, Vibration, and Harshness) was typically achieved by increasing the thickness of the rubber parts. However, this approach not only results in bulky products and increased costs but also makes assembly difficult and provides less than ideal noise reduction. Utility Model Content

[0003] To address the above problems, this utility model provides a waterproof and soundproof rubber assembly for wire harnesses, thus solving the aforementioned issues.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and soundproof rubber component for wire harnesses, comprising a rubber body, a plurality of fixing holes being provided at the upper end of the rubber body, metal bushings being provided in the fixing holes respectively, a wire harness hole post being fixed at the upper end of the rubber body, a metal pad being provided at the upper end of the rubber body, a connecting hole being provided on the metal pad, a metal pressure plate being provided at the upper end of the metal pad, and the metal pressure plate being connected to the rubber body.

[0005] Preferably, the upper ends of the fixing holes are respectively provided with countersunk holes, and the upper ends of the metal bushings are respectively provided with outwardly bent flanges, and the flanges of the metal bushings correspond one-to-one with the countersunk holes.

[0006] Preferably, the wire harness hole post is symmetrically provided with a locking interface, and a boss is fixed at the lower end of the wire harness hole post, and the boss is fixedly connected to the rubber part body.

[0007] Preferably, the upper end of the rubber component body is provided with an annular sealing strip, the lower edge of the boss is provided with an annular sealing platform, and the boss is provided with an indicator.

[0008] Preferably, the lower end of the metal pad has a downward folded edge, and the folded edge of the metal pad surrounds the edge of the rubber body.

[0009] Preferably, the connecting hole corresponds to the sealing platform.

[0010] Preferably, the lower end of the rubber component body is provided with a wire harness through hole, and the lower end of the wire harness through hole is rounded.

[0011] Preferably, the rubber component body, wire harness hole post, sealing strip, sealing platform, and boss are integrally formed.

[0012] Preferably, the lower end of the metal pressure plate has a downwardly protruding edge.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This device effectively prevents mud and sewage from entering the driver's cabin from the front of the car, blocks the dry and wet areas between the rubber body and the sheet metal, and plays a sealing role. It can also significantly improve the noise reduction effect.

[0015] 2. By setting a sealing strip on the rubber body, a cavity is formed between the metal pad and the rubber body after the metal pad contacts the sealing strip and the sealing platform, which improves the noise blocking effect and effectively isolates sewage and silt. By setting an indicator, the user is reminded of the installation method to prevent reverse installation. Attached Figure Description

[0016] Figure 1 This is an overall exploded view of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the bottom of the rubber part of this utility model.

[0020] The diagram shows the following labels: 1. Rubber body; 2. Metal bushing; 3. Metal pressure plate; 11. Wire harness hole post; 12. Fixing hole; 13. Countersunk hole; 14. Wire harness through hole; 15. Sealing strip; 16. Sealing platform; 31. Metal pad; 111. Boss; 112. Indicator; 113. Snap-fit ​​interface; 311. Connection hole. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] Please see Figure 1 , Figure 2 and Figure 3A waterproof and soundproof rubber assembly for wiring harnesses includes a rubber body 1. The upper end of the rubber body 1 has several fixing holes 12, and metal bushings 2 are respectively installed in each fixing hole 12. By creating the fixing holes 12 and placing the metal bushings 2 in the fixing holes 12, the assembly is fitted into studs welded to the vehicle body and tightened with nuts. The use of metal bushings 2 effectively reduces friction between the studs and the rubber body 1, extending the service life of the rubber body 1. A wiring harness hole post 11 is fixed to the upper end of the rubber body 1, and a metal pad 31 is provided at the upper end of the rubber body 1. The metal pad 31 has connection holes 311. The upper end of the metal pad 31 is provided with a metal pressure plate 3, which is connected to the rubber body 1. The metal pressure plate 3 and the metal pad 31 are made of metal. After the rubber body 1, the metal bushing 2 and the metal pressure plate 3 are assembled on the stud, they are tightened with a nut. The nut applies pressure to the metal pressure plate 3, which in turn applies pressure to the metal pad 31. The metal pad 31 applies pressure evenly to the rubber body 1, making the rubber body 1 fit against the vehicle body. The lower end of the rubber body 1 is provided with a sealing strip, which is integrally formed with the rubber body 1 to enhance the sealing between the rubber body 1 and the vehicle body.

[0023] Please see Figure 1 , Figure 2 and Figure 3 The upper end of the fixing hole 12 is provided with a countersunk hole 13 concentrically, and the upper end of the metal bushing 2 is provided with an outwardly bent flange. The flange of the metal bushing 2 corresponds one-to-one with the countersunk hole 13. By setting the countersunk hole 13 on the fixing hole 12 and setting the flange on the metal bushing 2, the upper end of the metal bushing 2 is flush with the upper end surface of the rubber body 1, so as to prevent excessive local pressure after the metal pad 31 is pressed down, which would cause the rubber body 1 to break.

[0024] Please see Figure 1 , Figure 2 and Figure 3 The wire harness hole post 11 is symmetrically provided with a locking interface 113. The lower end of the wire harness hole post 11 is fixed with a boss 111. The boss 111 is fixedly connected to the rubber body 1. The upper end of the rubber body 1 is provided with an annular sealing strip 15. The lower edge of the boss 111 is provided with an annular sealing platform 16. The boss 111 is provided with an indicator mark 112. By setting the sealing strip 15 on the rubber body 1, after the metal pad 31 contacts the sealing strip 15 and the sealing platform 16, a cavity is formed between the metal pad 31 and the rubber body 1, which improves the noise blocking effect and effectively isolates sewage and silt. By setting the indicator mark 112, the user is reminded of the installation method to prevent reverse installation.

[0025] Please see Figure 2, Figure 3 and Figure 4 The lower end of the metal pad 31 is provided with a downward folded edge. The folded edge of the metal pad 31 surrounds the edge of the rubber body 1. After the metal pad 31 is pressed down, the rubber body 1 deforms. The edge of the metal pad 31 blocks the deformation of the rubber body 1, thereby making the rubber body 1 and the edge of the metal pad 31 fit tightly together, further increasing the sealing between the rubber body 1 and the metal pad 31. The connecting hole 311 corresponds to the sealing platform 16. The lower end of the rubber body 1 is provided with a wire harness through hole 14. The lower end of the wire harness through hole 14 is rounded. The rubber body 1, wire harness hole post 11, sealing strip 15, sealing platform 16 and boss 111 are integrally formed. By integrally forming the rubber body 1, wire harness hole post 11, sealing strip 15, sealing platform 16 and boss 111, the firmness of the connection between them is ensured, and the sealing of the connection is guaranteed to prevent water leakage. The lower end of the metal pressure plate 3 is provided with a downward protruding edge.

[0026] The rubber body 1, metal bushing 2, and metal pressure plate 3 are combined. After the metal bushing 2 is installed into the fixing hole 12 on the rubber body 1, the metal pressure plate 3 is then installed onto the rubber body 1, pressing down on the metal bushing 2 to prevent it from detaching from the fixing hole 12. One end of the rubber body 1 is adapted to the wire harness structure and is compatible with the wire harness. The other end is designed with an opening to facilitate mold release. After the rubber body 1 is formed, before assembly, the end with the compatible wire diameter needs to be reversed and passed through the other end to achieve a cavity structure that blocks noise. After the rubber body 1, metal bushing 2, and metal pressure plate 3 are assembled, they can be installed into the welding studs on the vehicle body and tightened with nuts.

[0027] 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, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire harness waterproofing and soundproofing rubber assembly, characterized by: The device includes a rubber body (1), with several fixing holes (12) at the upper end of the rubber body (1). Metal bushings (2) are provided in the fixing holes (12). A wire harness hole post (11) is fixed at the upper end of the rubber body (1). A metal pad (31) is provided at the upper end of the rubber body (1). A connection hole (311) is provided on the metal pad (31). A metal pressure plate (3) is provided at the upper end of the metal pad (31). The metal pressure plate (3) is connected to the rubber body (1).

2. A wire harness water-proofing and sound-proofing rubber assembly according to claim 1, characterized in that: The upper end of the fixing hole (12) is provided with a countersunk hole (13) concentrically, and the upper end of the metal bushing (2) is provided with an outwardly bent flange, and the flange of the metal bushing (2) corresponds one-to-one with the countersunk hole (13).

3. A wire harness water-proofing and sound-proofing rubber assembly according to claim 1, characterized in that: The wire harness hole post (11) is symmetrically provided with a card interface (113), and a boss (111) is fixed at the lower end of the wire harness hole post (11). The boss (111) is fixedly connected to the rubber body (1).

4. The waterproof and soundproof rubber assembly for a wire harness according to claim 3, characterized in that: The upper end of the rubber body (1) is provided with an annular sealing strip (15), the lower edge of the boss (111) is provided with an annular sealing platform (16), and the boss (111) is provided with an indicator (112).

5. A waterproof and soundproof rubber assembly for a wire harness according to claim 1, characterized in that: The lower end of the metal pad (31) is provided with a downward folded edge, and the folded edge of the metal pad (31) surrounds the edge of the rubber body (1).

6. The waterproof and soundproof rubber assembly for a wire harness according to claim 3, characterized in that: The connecting hole (311) corresponds to the sealing platform (16).

7. The waterproof and soundproof rubber assembly for a wire harness according to claim 1, characterized in that: The lower end of the rubber body (1) is provided with a wire harness through hole (14), and the lower end of the wire harness through hole (14) is rounded.

8. A waterproof and soundproof rubber assembly for a wire harness according to claim 3, characterized in that: The rubber body (1), wire harness hole post (11), sealing strip (15), sealing platform (16) and boss (111) are integrally formed.

9. A waterproof and sound-insulating rubber assembly for a wire harness according to claim 1, characterized in that: The lower end of the metal pressure plate (3) is provided with a downwardly protruding edge.

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