Sealing structure, wire harness assembly and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and particularly relates to a sealing structure, a wire harness assembly and a vehicle. The sealing structure is used for sealing an open hole of a to-be-sealed part, the sealing structure comprises a sealing part and sealing filler, the sealing part is in interference fit with the open hole, the sealing part is provided with a wire harness via hole, and the wire harness via hole is used for allowing a wire harness to penetrate through; the wire harness via hole is filled with the sealing filler, and the sealing filler is used for blocking the space between the wire harness and the hole wall of the wire harness via hole. The sealing element is in interference fit with the open hole, so that the sealing performance between the sealing element and the open hole can be ensured; the wire harness passing hole is used for the wire harness to penetrate through, a gap exists between the wire harness and the hole wall of the wire harness passing hole, the wire harness passing hole is filled with the sealing filler, the gap between the wire harness and the hole wall of the wire harness passing hole can be blocked, the sealing performance between the wire harness and the wire harness passing hole is guaranteed, and therefore the sealing performance of the whole sealing structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a sealing structure, a wiring harness assembly and a vehicle. Background Art

[0002] Cars have dry and wet areas. The wet area is typically between the door outer panel and the door inner panel. The wet area is open, allowing some rainwater or car wash fluid to enter through the window gap. The dry area is sealed between the door inner panel and the interior trim (interior components exposed to the interior of the vehicle). The dry area is prevented from entering by rainwater or car wash fluid. Inevitably, some openings on the vehicle body lie at the boundary between the dry and wet areas, especially for automotive wiring harnesses that penetrate these areas. To ensure sealing in these structural locations, sealant plugs are typically used to seal these openings. However, current sealant plugs either have a single function, only covering the opening and failing to connect the wiring harness; or they can connect the wiring harness but with limited sealing and difficult installation.

[0003] Therefore, a sealing structure is urgently needed to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing structure, a wiring harness assembly and a vehicle, which can be combined with the wiring harness and have good sealing performance.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A sealing structure for sealing an opening of a component to be sealed, the sealing structure comprising:

[0007] A sealing member is interference-fitted with the opening, and a wiring harness through hole is provided on the sealing member, and the wiring harness through hole is used for passing the wiring harness;

[0008] A sealing filler is filled in the wiring harness through hole to seal the gap between the wiring harness and the hole wall of the wiring harness through hole.

[0009] As a preferred technical solution of the sealing structure, the sealing filler is waterproof cement.

[0010] As a preferred technical solution of the sealing structure, the sealing member includes:

[0011] an inserting portion capable of being inserted into the opening and forming an interference fit with the opening;

[0012] The abutment portion is provided at one end of the inserting portion, and the abutment portion can abut against the surface of the component to be sealed.

[0013] As a preferred technical solution of the sealing structure, a guiding slope is formed on the inserting portion, and the guiding slope is used to guide the inserting portion when the inserting portion is inserted into the opening.

[0014] As a preferred technical solution of the sealing structure, the sealing structure further includes a wire harness guide portion, which is connected to one end of the insertion portion away from the abutment portion, and is used to guide the wire harness at the wire harness guide portion.

[0015] As a preferred technical solution of the sealing structure, the insertion portion is provided with a deformation avoidance groove, and the deformation avoidance groove is used to provide deformation space for the insertion portion during the process of the insertion portion being inserted into the opening.

[0016] As a preferred technical solution of the sealing structure, a fixing groove is provided on the outer periphery of the inserting portion, and when the inserting portion is inserted into the opening, the member to be sealed is clamped in the fixing groove.

[0017] As an optimal technical solution for the sealing structure, the abutment portion includes a supporting portion and an abutment protrusion, the supporting portion is arranged on the insertion portion, the abutment protrusion is protruding on the side of the supporting portion facing the fixing groove, and the abutment protrusion is used to abut against the part to be sealed.

[0018] As an optimal technical solution for the sealing structure, the dimension of the fixing groove along the thickness direction of the part to be sealed is greater than the thickness of the part to be sealed, and the difference between the dimension of the fixing groove along the thickness direction of the part to be sealed and the thickness of the part to be sealed is less than the height of the abutment protrusion protruding from the support portion.

[0019] A wiring harness assembly comprises a wiring harness and a sealing structure as described in any of the above schemes, wherein the wiring harness is passed through a wiring harness through-hole on the sealing structure.

[0020] As a preferred technical solution for the wiring harness assembly, there are multiple wiring harnesses passing through the wiring harness through-holes, and the sealing filler is filled between adjacent wiring harnesses in the multiple wiring harnesses.

[0021] A vehicle comprises a vehicle body and a sealing structure as described in any of the above schemes, wherein the vehicle body is provided with an opening, and the sealing structure seals the opening.

[0022] A vehicle comprises a vehicle body and a wiring harness assembly as described in any of the above schemes, wherein the vehicle body is provided with an opening, and the sealing structure in the wiring harness assembly is sealed in the opening.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a sealing structure for sealing an opening on a component to be sealed. The sealing structure includes a sealing member and a sealing filler. The sealing member is interference-fitted with the opening. A wiring harness through-hole is provided on the sealing member. The wiring harness through-hole is used for passing a wiring harness. The sealing filler is filled in the wiring harness through-hole to block the gap between the wiring harness and the wiring harness through-hole. By interference-fitting the sealing member with the opening, the sealing between the sealing member and the opening can be ensured. The wiring harness through-hole is used for passing a wiring harness. There is a gap between the wiring harness and the hole wall of the wiring harness through-hole. By filling the wiring harness through-hole with the sealing filler, the gap between the wiring harness and the hole wall of the wiring harness through-hole can be blocked, ensuring the sealing between the wiring harness and the wiring harness through-hole, thereby ensuring the sealing performance of the sealing structure as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of a sealing structure provided by an embodiment of the present utility model installed in an opening of a vehicle body;

[0026] Figure 2 yes Figure 1 Cross-sectional view along AA direction;

[0027] Figure 3 yes Figure 1 Cross-sectional view along direction BB.

[0028] In the picture:

[0029] 10. Car body; 20. Sealing structure; 30. Wiring harness;

[0030] 211. Insertion portion; 2111. Guide slope; 2112. Fixing groove; 2113. Deformation avoidance groove; 212. Abutment portion; 2121. Support portion; 2122. Abutment protrusion; 213. Wire harness guide portion; 22. Sealing filler. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0032] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0035] like Figures 1 to 3 As shown, an embodiment of the present invention provides a sealing structure 20 for sealing an opening in a component to be sealed. In this embodiment, the sealing structure 20 is used to seal an opening in a vehicle body 10, particularly an opening located between a dry area and a wet area of the vehicle body 10. The sealing structure 20 includes a sealing member 21 and a sealing filler 22. The sealing member 21 has an interference fit with the opening. The sealing member 21 is provided with a wiring harness hole for passing a wiring harness 30. The sealing filler 22 is filled in the wiring harness hole to block the gap between the wiring harness 30 and the wall of the wiring harness hole. By interference fitting the seal 21 with the opening, the sealing between the seal 21 and the opening can be ensured; the wire harness via is for the wire harness 30 to pass through, and there is a gap between the wire harness 30 and the hole wall of the wire harness via. By filling the sealing filler 22 in the wire harness via, the gap between the wire harness 30 and the hole wall of the wire harness via can be sealed, ensuring the sealing between the wire harness 30 and the wire harness via, thereby ensuring the overall sealing performance of the sealing structure 20.

[0036] Alternatively, the sealing filler 22 may be waterproof cement. Waterproof cement is a waterproof material achieved by adding high-efficiency waterproof powder or specific additives to cement. Waterproof cement not only has good air permeability but also possesses strong waterproof properties. It also exhibits crack resistance, compression resistance, corrosion resistance, freeze-thaw resistance, and good adhesion. However, the sealing filler 22 is not limited to this.

[0037] Specifically, the seal 21 includes an insert portion 211 and an abutment portion 212. The insert portion 211 can be inserted into the opening and form an interference fit with the wall of the opening, thereby achieving a radial seal between the seal 21 and the wall of the opening. In this embodiment, the interference fit between the insert portion 211 and the opening is 0.5 mm, but is not limited to this and can be adjusted according to the size of the seal 21. The abutment portion 212 is provided on the insert portion 211. The abutment portion 212 can abut against the vehicle body 10 and form an interference fit with the vehicle body 10, thereby achieving an axial seal between the seal 21 and the vehicle body 10. In this embodiment, the interference fit between the abutment portion 212 and the vehicle body 10 is 0.2 mm, but is not limited to this and can be adjusted according to the size of the seal 21. The wiring harness through hole passes through the insert portion 211 along the axial direction of the seal 21. The opening on the vehicle body 10 is generally located in a plane area. The seal 21 is installed along the normal direction of the plane area during installation, and the seal 21 is pressed into the opening by external force. The abutment portion 212 abuts against the plane area to ensure the stability of the installation of the seal 21.

[0038] Furthermore, a guiding slope 2111 is formed on the insertion portion 211 , and the guiding slope 2111 is used to guide the insertion portion 211 when the insertion portion 211 is inserted into the opening on the vehicle body 10 , so that the insertion portion 211 can be smoothly inserted into the opening.

[0039] During the process of inserting the insertion portion 211 into the opening of the vehicle body 10, the insertion portion 211 will be squeezed and deformed. In order to provide deformation space for the insertion portion 211, a deformation avoidance groove 2113 is provided on the insertion portion 211 at least at the portion where the insertion portion 211 is squeezed and deformed, thereby providing space for deformation of the insertion portion 211 during the process of inserting the insertion portion 211 into the opening. Figure 3 The D indicated in the middle is the deformation space provided by the deformation avoidance groove 2113 , thereby making the insertion process of the insertion portion 211 smoother and more convenient.

[0040] In this embodiment, the deformation avoidance groove 2113 is opened at one end of the insertion part 211 along the axial direction of the seal 21, and extends to the other end of the insertion part 211 along the axial direction of the seal 21, but does not pass through to the other end of the insertion part 211 along the axial direction of the seal 21. In this way, it can be ensured that the deformation avoidance groove 2113 can correspond to the part of the insertion part 211 that is extruded and deformed, and the structural strength of the insertion part 211 can be guaranteed. At the same time, it is also convenient for the processing and forming of the deformation avoidance groove 2113.

[0041] Optionally, there may be multiple deformation avoidance grooves 2113, which are spaced apart along the circumference of the seal 21; or the deformation avoidance grooves 2113 may be annular grooves, which are arranged around the circumference of the seal 21. For example, in this embodiment, there are two deformation avoidance grooves 2113, which are symmetrically distributed on both sides of the wiring harness via.

[0042] Furthermore, a fixing groove 2112 is provided on the outer periphery of the insertion portion 211. When the insertion portion 211 is inserted into the opening of the vehicle body 10 under the guidance of the guide slope 2111, the vehicle body 10 is clamped in the fixing groove 2112. Under the limitation of the fixing groove 2112, the seal 21 is fixed.

[0043] Specifically, the abutting portion 212 includes a supporting portion 2121 and an abutting protrusion 2122. The supporting portion 2121 is connected to the inserting portion 211. The abutting protrusion 2122 is protruding from the side of the supporting portion 2121 facing the fixing groove 2112. The abutting protrusion 2122 is used to abut against the vehicle body 10 and form an interference fit with the vehicle body 10. When the abutting protrusion 2122 abuts against the vehicle body 10, the abutting protrusion 2122 will undergo elastic deformation. In order to provide deformation space for the abutting protrusion 2122, the dimension H of the fixing groove 2112 along the thickness direction of the vehicle body 10 is set to be greater than the thickness h of the vehicle body 10, and the difference between H and h is less than the height of the abutting protrusion 2122 protruding from the supporting portion 2121. Figure 3 When the insertion portion 211 is inserted into the opening until the vehicle body 10 is clamped in the fixing groove 2112, the insertion of the insertion portion 211 stops. At this time, the abutting protrusion 2122 abuts against the surface of the vehicle body 10. Since the dimension H of the fixing groove 2112 along the thickness direction of the vehicle body 10 is set to be greater than the thickness h of the vehicle body 10, and the difference between H and h is less than the height of the abutting protrusion 2122 protruding from the support portion 2121, it is possible to ensure that the abutting protrusion 2122 forms an interference fit with the vehicle body 10, and a certain deformation space can be provided for the interference fit between the abutting protrusion 2122 and the vehicle body 10, thereby further improving the convenience of installation of the sealing structure 20.

[0044] Optionally, the abutment protrusion 2122 may be a plurality of discrete protrusions, which are spaced apart along the circumference of the support portion 2121 ; or the abutment protrusion 2122 may be an annular protrusion, which is arranged around the circumference of the support portion 2121 .

[0045] Optionally, the cross-sectional shape of the abutting protrusion 2122 may be conical, trapezoidal, rectangular, or the like.

[0046] Furthermore, the seal 21 includes a wire harness guide 213 connected to the end of the insertion portion 211 facing away from the abutment portion 212. The wire harness guide 213 is used to guide the wire harness 30 at the wire harness guide 213. The provision of the wire harness guide 213 can guide the direction of the wire harness 30, preventing the wire harness 30 from direct contact with the vehicle body 10, thereby preventing wear on the wire harness 30 and increasing the service life of the wire harness 30.

[0047] Specifically, the wiring harness through-hole passes through the insertion portion 211 and the wiring harness guide portion 213 along the axial direction of the seal 21. The axis of the wiring harness guide portion 213 is set at an angle to the axis of the insertion portion 211. The size of the angle depends on the shape of the vehicle body 10, so as to ensure that the wiring harness 30 does not contact the vehicle body 10 at the wiring harness guide portion 213.

[0048] Optionally, the insert portion 211 and the abutting portion 212 are made of EPDM (Ethylene-Propylene-Diene Monomer). EPDM is a terpolymer of ethylene, propylene, and a non-conjugated diene. Its most important characteristic is its superior resistance to oxidation, ozone, and corrosion. Of course, the material of the insert portion 211 and the abutting portion 212 is not limited to this and may also be other rubber materials. Optionally, the hardness of the insert portion 211 and the abutting portion 212 is 50±5 (Shore hardness), which can also be adjusted according to needs and is not limited to this.

[0049] In some embodiments, the wiring harness through-hole may be completely filled with the sealing filler 22 so that the sealing structure 20 seals the opening that does not need to be passed through by the wiring harness 30 .

[0050] An embodiment of the present invention further provides a wiring harness assembly, including a wiring harness 30 and the sealing structure 20 as described above, wherein the wiring harness 30 is passed through a wiring harness through hole of the sealing structure 20 .

[0051] In some embodiments, there are multiple wire harnesses 30 passing through the wire harness vias, and there are gaps between adjacent wire harnesses 30 among the multiple wire harnesses 30. Therefore, sealing fillers 23 are filled between adjacent wire harnesses 30 to seal the gaps between adjacent wire harnesses 30, thereby further improving the overall sealing performance of the sealing structure 20.

[0052] An embodiment of the present invention further provides a vehicle, including a vehicle body 10 and the sealing structure 20 as described above. The vehicle body 10 is a sheet metal component, and an opening is provided on the vehicle body 10. The sealing structure 20 is disposed in the opening.

[0053] An embodiment of the present invention further provides a vehicle, comprising a vehicle body 10 and the wiring harness assembly as described above. The vehicle body 10 is a sheet metal component, and an opening is provided on the vehicle body 10. The sealing structure 20 in the wiring harness assembly is provided in the opening.

[0054] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A sealing structure for sealing an opening of a component to be sealed, characterized in that: The sealing structure (20) comprises: A sealing member (21) is interference-fitted with the opening, and a wiring harness through hole is provided on the sealing member (21), and the wiring harness through hole is used for allowing the wiring harness (30) to pass through; A sealing filler (22) is filled in the wiring harness through hole and is used to seal the gap between the wiring harness (30) and the hole wall of the wiring harness through hole.

2. The sealing structure according to claim 1, wherein: The sealing filler (22) is waterproof cement.

3. The sealing structure according to claim 1 or 2, characterized in that: The sealing member (21) comprises: an inserting portion (211) capable of being inserted into the opening and forming an interference fit with the wall of the opening; An abutment portion (212) is provided on the inserting portion (211), and the abutment portion (212) is capable of abutting against the surface of the component to be sealed.

4. The sealing structure according to claim 3, characterized in that: A guiding inclined surface (2111) is formed on the insertion portion (211), and the guiding inclined surface (2111) is used to guide the insertion portion (211) when the insertion portion (211) is inserted into the opening.

5. The sealing structure according to claim 3, characterized in that: The sealing structure (20) further includes a wire harness guide portion (213), the wire harness guide portion (213) being connected to an end of the insertion portion (211) facing away from the abutment portion (212), and the wire harness guide portion (213) being used to guide the wire harness (30) at the wire harness guide portion (213).

6. The sealing structure according to claim 3, characterized in that: The insertion portion (211) is provided with a deformation avoidance groove (2113), and the deformation avoidance groove (2113) is used to provide deformation space for the insertion portion (211) during the process of inserting the insertion portion (211) into the opening.

7. The sealing structure according to claim 3, characterized in that: A fixing groove (2112) is provided on the outer periphery of the insertion portion (211), and when the insertion portion (211) is inserted into the opening, the component to be sealed is clamped in the fixing groove (2112).

8. The sealing structure according to claim 7, characterized in that: The abutting portion (212) comprises a supporting portion (2121) and an abutting protrusion (2122), wherein the supporting portion (2121) is arranged on the inserting portion (211), and the abutting protrusion (2122) is protrudingly arranged on a side of the supporting portion (2121) facing the fixing groove (2112), and the abutting protrusion (2122) is used to abut against the component to be sealed.

9. The sealing structure according to claim 8, characterized in that: The dimension of the fixing groove (2112) along the thickness direction of the part to be sealed is greater than the thickness of the part to be sealed, and the difference between the dimension of the fixing groove (2112) along the thickness direction of the part to be sealed and the thickness of the part to be sealed is less than the height of the abutting protrusion (2122) protruding from the supporting portion (2121).

10. The wiring harness assembly is characterized in that: The invention comprises a wire harness (30) and a sealing structure (20) according to any one of claims 1 to 9, wherein the wire harness (30) is passed through a wire harness through hole on the sealing structure (20).

11. The wiring harness assembly according to claim 10, characterized in that: There are a plurality of wire harnesses (30) passing through the wire harness through hole, and the sealing filler (22) is filled between adjacent wire harnesses (30) in the plurality of wire harnesses (30).

12. A vehicle, characterized in that The invention comprises a vehicle body (10) and a sealing structure (20) according to any one of claims 1 to 9, wherein the vehicle body (10) is provided with an opening, and the sealing structure (20) is sealed in the opening.

13. A vehicle, characterized in that The invention comprises a vehicle body (10) and a wiring harness assembly according to any one of claims 10 to 11, wherein the vehicle body (10) is provided with an opening, and a sealing structure (20) in the wiring harness assembly is sealed in the opening.

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