Via hole rubber assembly for sealing protection of automobile body

Abstract

The utility model discloses a via hole rubber assembly for sealing protection of an automobile body, relates to the technical field of automobile sealing, and aims to solve the problem that a rubber part cannot be effectively sealed due to weak deformation of the automobile body in an automobile in the prior art. Foam is arranged between the rubber part and the vehicle body in a clamped mode. A pressing plate is wrapped in the rubber part, the pressing plate is used for carrying out structure supporting on the rubber part, a wire passing hole is formed in the rubber part, and a high-voltage charging wire harness penetrates through the wire passing hole. According to the utility model, the problems of vehicle body deformation and poor planeness are solved by utilizing large margin deformation of the foam, and effective sealing is realized.

Description

Technical Field

[0001] This utility model relates to a through-hole rubber assembly for sealing and protecting automobile bodies, belonging to the field of automotive sealing technology. Background Technology

[0002] With the continuous advancement and development of new automotive technologies, new energy vehicles are gradually becoming the future direction of the automotive industry. The application of high-voltage charging harnesses and high-voltage connectors in automobiles is becoming more and more widespread, and the demand for complex sealing of high-voltage charging harnesses and vehicle bodies is also increasing accordingly.

[0003] In new energy vehicles, one end of the high-voltage charging harness is a charging socket, through which the new energy vehicle is charged when it is low on power; the other end is a high-voltage, high-current connector, which connects to the new energy vehicle's battery pack. The charging socket end is installed inside the vehicle, and the high-voltage connector end is mounted on the battery pack socket under the chassis. Therefore, the charging harness assembly needs to pass through the vehicle body.

[0004] The current industry solution involves opening a hole in the vehicle body, through which the high-voltage connector of the high-voltage charging harness passes. A seal is required at this opening location. Common sealing methods include forming waterproof ribs or skirts on the through-hole rubber component; the fastening method involves pre-drilling screw holes on the through-hole rubber component, installing screws on the vehicle body, and then securing it to the vehicle body by locking nuts.

[0005] In practical applications, body deformation often occurs during body molding or assembly. Since the opening size is larger than the connector's external dimensions, the problems of body deformation and poor flatness become more serious. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a through-hole rubber component for sealing and protecting automobile bodies. It utilizes the large allowable deformation of foam to solve the problems of body deformation and poor flatness, thereby achieving effective sealing.

[0007] To achieve the above objectives, this utility model employs the following technical solution:

[0008] This utility model provides a through-hole rubber assembly for sealing and protecting automobile bodies. The assembly is fixed to the vehicle body and includes a rubber component, a pressure plate, foam, and a fixing component. The pressure plate is encased inside the rubber component, and the pressure plate is fixed to the vehicle body by the fixing component. The foam is located between the rubber component and the vehicle body. The fixing component includes a fixing end and a crimping end. The fixing end passes through the rubber component, the pressure plate, and the foam before being fixed to the vehicle body. The rubber component is crimped between the crimping end and the pressure plate. The rubber component has a wire-passing hole for threading wire harnesses.

[0009] Furthermore, the fastener is a press-fit screw, which includes a press-fit end and a fixing end. The rubber part has a first through hole, and the pressure plate has a second through hole corresponding to the first through hole. The fixing end passes through the first through hole, the second through hole, and the car body in sequence and is threadedly connected to the nut.

[0010] The first through hole is larger than the second through hole, and the rubber part has grooves at the edges of the first through hole and the second through hole, with at least a portion of the crimping end located in the grooves.

[0011] Furthermore, the rubber component is provided with a waterproof rib circumferentially below the crimping end. When the crimping screw is pressed into a preset depth, the waterproof rib can form a seal with the crimping end through interference.

[0012] Furthermore, the rivet screw is divided into a round rivet screw and a waist-shaped rivet screw. The first through hole and the second through hole both include a round through hole and a waist-shaped through hole. The round rivet screw is interference-fitted with the round through hole, and the waist-shaped rivet screw is interference-fitted with the waist-shaped through hole.

[0013] Furthermore, both the pressure plate and the foam have openings in the middle, and the openings are located below the wire hole.

[0014] Furthermore, the inside of the wire hole is provided with a waterproof rib, which is used to form a seal with the high-voltage charging wire harness through interference to prevent moisture from entering.

[0015] Furthermore, the foam is bonded to the lower surface of the rubber component with adhesive backing to achieve fixation.

[0016] Furthermore, the rubber component and the pressure plate are integrally formed by plastic coating molding.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0018] This utility model provides foam between the rubber part and the car body. The large deformation margin of the foam can effectively compensate for the deformation and flatness difference of the car body. At the same time, it can also seal and protect the car body near the wire hole. The rubber part can further achieve the sealing effect at the opening of the car body by pressing and interfering with the fixing part.

[0019] The utility model has waterproof ribs on the wire hole and the rubber part below the rivet screw. The waterproof ribs can interfere with the high-voltage charging harness and the rivet screw to form a seal, effectively improving the sealing performance of the vehicle body. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of a through-hole rubber assembly for sealing and protecting an automobile body in one embodiment of the present invention;

[0021] Figure 2 This is an exploded view of the perforated rubber assembly used for sealing and protecting the car body in one embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure in which the waterproof rib and the press-fit screw interfere with each other in a through-hole rubber assembly used for sealing and protecting the car body in one embodiment of the present invention.

[0023] In the diagram: 1-Rubber part, 2-Pressure plate, 3-Foam, 4-Rivet screw, 5-First through hole, 6-Second through hole, 7-Wire hole, 8-Body body, 9-Waterproof rib. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example 1

[0025] like Figure 1 As shown, this utility model embodiment provides a through-hole rubber assembly for sealing and protecting automobile bodies, which includes a rubber part 1, a pressure plate 2 inside the rubber part 1, and the pressure plate 2 and the rubber part 1 are integrally formed by plastic coating molding.

[0026] Combination Figure 2 The rubber component 1 is located on the exterior of the vehicle body 8 and is connected to the vehicle body 8 by a fastener. Foam 3, which is a silicone foam material with micropores, is sandwiched between the rubber component 1 and the vehicle body 8. In this embodiment, the foam 3 is bonded to the lower surface of the rubber component 1 with an adhesive backing. The rubber component 1 has a wire-passing hole 7, and both the pressure plate 2 and the foam 3 have openings in the middle, located below the wire-passing hole 7. The wire harness passes through the wire-passing hole 7 and the opening in sequence, and then passes through the vehicle body to enter the interior of the vehicle body.

[0027] When the body 8 has problems such as weakness and susceptibility, or poor flatness, the large deformation margin of the foam 3 can effectively compensate for the deformation of the body 8 after the structure is assembled, and can also achieve sealing and protection of the body.

[0028] In this embodiment, the fastener is a press-fit screw 4, but it is not limited to this; any other component that can fix the pressure plate 2 to the vehicle body should be acceptable. In this embodiment, there are 6 press-fit screws 4, which are evenly distributed around the surface of the rubber part 1.

[0029] The connection method between the rivet screw 4 and the various components is as follows: Rivet screws are divided into round rivet screws and waist-shaped rivet screws. In this embodiment, the number of round rivet screws is 4, and the number of waist-shaped rivet screws is 2. The round rivet screws are located at the four azimuth angles of the pressure plate, and the waist-shaped rivet screws are located in the middle of the longer side of the pressure plate.

[0030] Corresponding to the rivet screw 4, the pressure plate 2 has a first through hole 5, and the rubber part 1 has a second through hole 6 corresponding to the first through hole 5. The first through hole 5 and the second through hole 6 also include a circular through hole and an oblong through hole. The circular rivet screw is interference-fitted with the circular through hole, and the oblong rivet screw is interference-fitted with the oblong through hole.

[0031] The rivet screw 4 includes a crimping end and a fixing end. The fixing end passes through the first through hole 5, the second through hole 6, and the vehicle body in sequence for threaded connection with the nut. In this embodiment, the first through hole 5 is larger than the second through hole 6, and the rubber part has grooves at the edges of the first through hole 5 and the second through hole 6, with at least a portion of the crimping end located within the grooves.

[0032] The working principle of this utility model is as follows:

[0033] The large deformation margin of foam 3 can effectively compensate for the deformation and flatness difference of the body 8, and can also seal and protect the body 8 near the wire hole 7. Example 2

[0034] Based on Embodiment 1, this embodiment also includes a waterproof rib 9 circumferentially provided inside the wire hole 7. The waterproof rib 9 and the high-voltage charging wire harness interfere with each other to form a seal, which can effectively prevent water vapor from entering.

[0035] Combination Figure 3 The rivet screw 4 includes a rivet portion. In some embodiments, the rubber part 1 is provided with a waterproof rib 9 circumferentially below the rivet portion. When the rivet screw 4 is pressed into a preset depth, the waterproof rib 9 can form a seal with the rivet portion through interference, further improving the sealing and protection effect on the vehicle body 8.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A perforated rubber assembly for sealing and protecting automobile bodies, which is fixed to the vehicle body, characterized in that, The through-hole rubber assembly includes a rubber component, a pressure plate, foam, and a fixing component. The pressure plate is encased inside the rubber component, and the pressure plate is fixed to the vehicle body by the fixing component. The foam is located between the rubber component and the vehicle body. The fixing component includes a fixing end and a crimping end. The fixing end passes through the rubber component, the pressure plate, and the foam and is fixed to the vehicle body. The rubber component is crimped between the crimping end and the pressure plate. The rubber component has a wire through hole for threading a wire harness.

2. The through-hole rubber assembly for sealing and protecting automobile bodies according to claim 1, characterized in that, The fastener is a press-fit screw, which includes a press-fit end and a fixing end. The rubber part has a first through hole, and the pressure plate has a second through hole corresponding to the first through hole. The fixing end passes through the first through hole, the second through hole and the car body in sequence and is threaded to the nut. The first through hole is larger than the second through hole, and the rubber part has grooves at the edges of the first through hole and the second through hole, with at least a portion of the crimping end located in the grooves.

3. The through-hole rubber assembly for sealing and protecting automobile bodies according to claim 2, characterized in that, The rubber component is provided with a waterproof rib in the circumferential direction below the crimping end. When the crimping screw is pressed into the preset depth, the waterproof rib can form a seal with the crimping end through interference.

4. The through-hole rubber assembly for sealing and protecting automobile bodies according to claim 2, characterized in that, The rivet screws are divided into round rivet screws and waist-shaped rivet screws. The first through hole and the second through hole both include round through holes and waist-shaped through holes. The round rivet screw is interference-fitted with the round through hole and the waist-shaped rivet screw is interference-fitted with the waist through hole.

5. The through-hole rubber assembly for sealing and protecting automobile bodies according to claim 1, characterized in that, Both the pressure plate and the foam have openings in the middle, and the openings are located below the thread hole.

6. The through-hole rubber assembly for sealing and protecting automotive bodies according to claim 1, characterized in that, The inside of the wire hole is provided with a waterproof rib, which is used to form a seal with the high-voltage charging wire harness through interference to prevent water vapor from entering.

7. The through-hole rubber assembly for sealing and protecting automobile bodies according to claim 1, characterized in that, The foam is fixed to the lower surface of the rubber component by means of adhesive backing.

8. The through-hole rubber assembly for sealing and protecting automobile bodies according to claim 1, characterized in that, The rubber component and the pressure plate are integrally formed by plastic coating.

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