Wire harness sealing assembly and automobile body

Abstract

The utility model relates to the technical field of vehicle parts, in particular to a wire harness sealing assembly and an automobile body. The wire harness sealing assembly comprises a body and a mounting plate arranged on the body in a sleeving mode. The body is provided with an accommodating hole for a wire harness to pass through, and two ends of the accommodating hole are respectively provided with a wire harness inlet and a wire harness outlet; the surface, close to the wire harness inlet, of the body protrudes outwards to form a first reinforcing rib, and when a wire harness is arranged in the body in a penetrating mode, the first reinforcing rib is used for supporting the body and the wire harness. When the wire harness sealing assembly is arranged on the mounting surface at the via hole, the fixing and sealing effects can be ensured, and the wire harness sealing assembly is convenient to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to a wire harness sealing component and an automobile body. Background Art

[0002] When the automobile wiring harness passes through a via, in order to prevent the wiring harness from being damaged and to fix and seal the wiring harness, a rubber piece is usually provided outside the wiring harness. The rubber piece has a through hole for the wiring harness to pass through and a mounting surface that is interference fit with the wiring harness via. The rubber piece is interference fit with the via to achieve fixation and sealing of the wiring harness at the via.

[0003] For the wiring harness that needs to pass through the via hole from the outside of the vehicle body to enter the passenger compartment, especially when the via hole is at the bottom of the vehicle body, considering the weight of the wiring harness, there is a risk of rubber parts falling off, and it is not waterproof and has poor sealing. In response to this problem, Chinese utility model patent CN214589428U proposes a wiring harness fixing device for automobiles, which accommodates cables through a fixed cover and a fixed body that are fixedly connected; the fixed body is installed in the via hole through the fixing body buckles and bolts located on the mounting surfaces at both ends of the via hole; and a waterproof sealing plug is provided inside the fixing body, and a sealing ring is provided outside to improve the sealing performance. This solution can solve the problem of preventing falling off, but since the sealing ring is clamped between the fixed body and the through hole, the fixed body buckle is made of a material with a certain elasticity, and the connection reliability is not high. If the fixed body is deflected in the through hole, the sealing effect of the sealing ring may be affected. In addition, since the sealing plug is only arranged inside the fixed body, in order to achieve the sealing effect, the wire harness outlet end (that is, the end of the fixed body passing through the through hole) is small in size, and the wire harness is restricted by the fixed body structure at the outlet end. The direction of the wire harness is restricted after passing through the through hole. The structure of the fixing device is also relatively complex and inconvenient to install. In addition, the fixing device has a connecting hole in the vehicle body and is connected to the vehicle body by bolts, which has a certain impact on the strength of the vehicle body.

[0004] When the wiring harness is used in harsh working conditions such as through-holes under the vehicle, sealing failure, sealing parts falling off upside down, and inconvenient installation are problems that need to be urgently solved in this field. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art that rubber parts are easy to fall off, the sealing effect is poor and the installation is inconvenient.

[0006] In order to solve the above problems, the utility model proposes a wire harness sealing assembly, including a body and a mounting plate sleeved on the body; the body is provided with a receiving hole for passing the wire harness, and the two ends of the receiving hole are respectively a wire harness inlet and a wire harness outlet; the surface of the body close to the wire harness inlet protrudes outward to form a first reinforcing rib, and the first reinforcing rib is used to support the body and the wire harness. A plurality of the first reinforcing ribs are evenly distributed on the body along the circumferential direction. The inner annular surface of the mounting plate is radially recessed outward to form a plurality of receiving grooves, and the first reinforcing ribs are installed in the receiving grooves.

[0007] Furthermore, the cross-section of the body is annular, and the outer surface of the body between the wire harness inlet and the wire harness outlet forms a flange-shaped connecting portion radially outwardly abutting against the mounting plate, and the connecting portion protrudes on the surface close to the wire harness outlet to form a sealing ring.

[0008] Furthermore, the mounting plate is provided with a mounting hole for inserting a fastener, and the connecting portion is provided with a connecting hole connected to the mounting hole.

[0009] Furthermore, a cylindrical wire harness guide portion is provided on the main body, and the wire harness guide portion includes a wire harness input end and a wire harness output end. The wire harness input end is a free end, and the wire harness output end is connected to the wire harness input port and communicated with the wire harness input port. The inner wall of the wire harness input end forms an annular sealing rib radially inward.

[0010] Furthermore, the body protrudes radially outward at the edge of the wire harness outlet to form a second reinforcing rib, and the second reinforcing rib is used to fix the body.

[0011] The utility model also proposes a car body, wherein the car body is provided with a mounting surface for installing the wiring harness sealing assembly, the mounting surface is provided with a through hole, the car body is provided with the wiring harness sealing assembly, the connecting portion is abutted between the mounting plate and the mounting surface, the wiring harness outlet passes through the through hole, so that the wiring harness inlet and the wiring harness outlet are respectively located on both sides of the mounting surface.

[0012] Compared with the prior art, the technical solution of the utility model has the following beneficial effects: when the wire harness sealing assembly of the utility model is installed on the mounting surface at the through hole, the fixing and sealing effects can be ensured, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a three-dimensional schematic diagram of the wiring harness sealing assembly of the utility model.

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram of the center wiring harness sealing assembly from another perspective.

[0016] Figure 3 This is a bottom view of the wire harness sealing assembly of the utility model.

[0017] Figure 4 for Figure 3 sectional view of .

[0018] In the figure:

[0019] 1-body; 11-accommodation hole; 111-wire harness inlet; 112-wire harness outlet; 12-first reinforcing rib; 13-connecting portion; 131-first connecting hole; 132-second connecting hole; 133-sealing ring; 14-wire harness guide portion; 141-wire harness inlet end; 142-wire harness outlet end; 143-sealing rib; 144-flange; 15-second reinforcing rib;

[0020] 2-mounting plate; 21-first mounting hole; 22-second mounting hole; 23-accommodating groove. DETAILED DESCRIPTION

[0021] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The orientation or position relationship indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the utility model.

[0023] The terms "first", "second", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0024] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0025] The utility model provides an automobile body and a wiring harness sealing assembly installed on the body, wherein the body is provided with a mounting surface, for example, a flat mounting surface is provided on the outer side of the body bottom plate, the mounting surface is provided with a through hole for passing the wiring harness, and a connector is fixedly connected to the mounting surface, and the connector is used to install the wiring harness sealing assembly. The connector can be a screw, and a connecting hole matching the screw is provided on the outer side of the body bottom plate. Preferably, the connector is a bolt, and a stud is welded on the mounting surface on the outer side of the body, the wiring harness sealing assembly is sleeved on the stud, and then fastened by a nut, thereby avoiding opening an additional hole on the body bottom plate, thereby meeting the requirements of body strength, etc.

[0026] See also Figure 1 , Figure 2 The wire harness sealing assembly of the utility model comprises a body 1 and a mounting plate 2 sleeved on the body 1; the body 1 is preferably made of rubber, and the mounting plate 2 is preferably a sheet metal. The body 1 is provided with a receiving hole 11 for passing the wire harness, and the two ends of the receiving hole 11 are a wire harness inlet 111 and a wire harness outlet 112 respectively.

[0027] Furthermore, the surface of the main body 1 near the wire harness entry port 111 protrudes outward to form a first reinforcing rib 12. The number of the first reinforcing ribs 12 is preferably multiple and evenly distributed on the main body 1 along the circumferential direction. The first reinforcing ribs 12 can enhance the overall strength and rigidity of the main body 1 and reduce the deformation degree of the surface of the main body 1 when the wire harness is passed through the main body 1, thereby supporting the wire harness and the main body 1.

[0028] Preferably, the first reinforcing rib 12 is integrally formed with the body 1 and is made of rubber; the first reinforcing rib 12 may also be made of a rigid material such as metal, fixedly connected to the mounting plate 2, preferably integrally formed with the mounting plate 2, or welded to the surface of the mounting plate 2 near the wire harness inlet. When the first reinforcing rib 12 is made of metal, it has a supporting surface that matches the surface of the body 1.

[0029] Furthermore, the inner annular surface of the mounting plate 2 is recessed radially outward to form a plurality of accommodating grooves 23, and the first reinforcing rib 12 is installed in the accommodating groove 23. When the first reinforcing rib 12 is made of a rubber material integrally formed with the body 1, preferably, the first reinforcing rib 12 and the accommodating groove 23 are clearance-matched for easy installation. The first reinforcing rib 12 and the accommodating groove 23 may also be interference-fitted, so that the accommodating groove 23 can play a certain supporting role for the first reinforcing rib 12, thereby enhancing the overall strength of the body 1.

[0030] The number of the first reinforcing ribs 12 and the accommodating grooves 23 can be adjusted according to the wire diameter of the wire harness and the size requirements of the via hole. Figure 1 As shown, in a specific embodiment, the number of the first reinforcing ribs 12 and the number of the accommodating grooves 23 are both 3. If the wire diameter of the wire harness is increased, the number of the first reinforcing ribs 12 and the number of the accommodating grooves 23 can be 4 or more.

[0031] Furthermore, the cross section of the body 1 is annular, and the outer surface of the body 1 between the wire harness inlet 111 and the wire harness outlet 112 is radially outwardly formed with a flange-shaped connection portion 13 that abuts against the mounting plate 2. Preferably, the connection portion 13 protrudes on the surface close to the wire harness outlet 112 to form a sealing ring 133. Alternatively, the connection portion 13 may protrude on the surface close to the wire harness outlet 112 to form a sealing boss, or a sealing ring made of a flexible material such as rubber may be provided on one side of the body 1 close to the wire harness outlet 112.

[0032] Furthermore, the mounting plate 2 is provided with mounting holes 21, 22 for inserting fasteners such as bolts, and the connecting portion 13 is provided with connecting holes 141, 142 communicating with the mounting holes 21, 22. The connecting portion 13 is abutted between the mounting plate 2 and the mounting surface, and the wire harness outlet 112 passes through the through hole, so that the wire harness inlet 111 and the wire harness outlet 112 are respectively located on both sides of the mounting surface. According to the size of the wire diameter of the wire harness, the number of the mounting holes and the connecting holes can be one or more.

[0033] like Figure 1 , Figure 2As shown, in a specific embodiment, the mounting hole includes a first mounting hole 21 and a second mounting hole 22, and the connecting hole includes a first connecting hole 131 and a second connecting hole 132, and the first mounting hole 21 and the first connecting hole 131 are preferably round holes, and the second mounting hole 22 and the second connecting hole 132 are preferably oblong holes. And in this embodiment, two bolts are welded on the mounting surface of the vehicle body. When in use, the connecting portion 13 on the main body 1 abuts between the mounting plate 2 and the mounting surface on the vehicle body, and the first connecting hole 131 and the first mounting hole 21 are sequentially sleeved outside the first bolt, and the second connecting hole 132 and the second mounting hole 22 are sequentially sleeved outside the second bolt. The shape of the oblong hole of the second mounting hole 22 and the second connecting hole 132 allows for quick positioning when sleeved on the second bolt, and is fastened by a nut for easy installation, and sealing is achieved at the through hole by a sealing ring 133.

[0034] Preferably, if Figure 1 , Figure 4 As shown, the body 1 is provided with a cylindrical harness guide 14, which includes a harness inlet 141 and a harness outlet 142. The harness inlet 141 is a free end, and the harness outlet 142 is connected to the harness inlet 111 and communicates with the harness inlet 111. According to the wiring harness routing requirements, the harness inlet 141 and the harness outlet 142 can be at any angle, such as Figure 1 As shown, for example, when the wire harness is on the outside of the bottom of the vehicle body, the wire harness guide portion 14 can change the direction of the wire harness arranged transversely when passing through the through hole.

[0035] Preferably, if Figure 2 , Figure 4 As shown, the inner wall of the wire harness entry end 141 forms an annular sealing rib 143 radially inward. When the wire harness is inserted into the wire harness entry end 141, it is engaged with the sealing rib 143. When in use, the wire harness can be restricted in its position in the main body 1 by engaging with the sealing rib 143, thereby fixing the wire harness, and the sealing rib 143 can improve the sealing performance.

[0036] Preferably, the outer wall of the wire harness entry end 141 forms an annular flange 144 radially outward. During installation, the flange 144 and the sealing rib 143 can increase the end surface area of ​​the wire harness entry end 141, thereby facilitating the insertion of the wire harness and further facilitating installation.

[0037] like Figure 2 , Figure 4 As shown, in order to further prevent the body 1 from falling off from the through hole, preferably, the body 1 protrudes radially outward at the edge of the harness outlet 112 to form a second reinforcing rib 15. Since the body 1 is made of a non-rigid material such as rubber, during installation, the second reinforcing rib 15 passes through the through hole and engages with the surface on the other side of the mounting surface on the vehicle body to further fix the body 1.

[0038] According to the different functions of the wiring harness in the car, different types of wiring harnesses have different corresponding sizes, weights and installation environments. Therefore, the shapes and sizes of the main body 1, the mounting plate 2, the wiring harness inlet terminal 141, etc. in the utility model are not limited to the above specific embodiments.

[0039] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A wiring harness sealing assembly, characterized in that: The invention comprises a main body (1) and a mounting plate (2) sleeved on the main body (1); the main body (1) is provided with a receiving hole (11) for passing a wire harness, and the two ends of the receiving hole (11) are respectively a wire harness inlet (111) and a wire harness outlet (112); a surface of the main body (1) close to the wire harness inlet (111) protrudes outward to form a first reinforcing rib (12); when the wire harness is passed through the main body (1), the first reinforcing rib (12) is used to support the main body (1) and the wire harness.

2. The wire harness sealing assembly according to claim 1, characterized in that: The plurality of first reinforcing ribs (12) are evenly distributed on the body (1) along the circumferential direction.

3. The wire harness sealing assembly according to claim 2, characterized in that: The inner annular surface of the mounting plate (2) is recessed radially outward to form a plurality of accommodating grooves (23), and the first reinforcing ribs (12) are installed in the accommodating grooves (23).

4. The wire harness sealing assembly according to claim 1, characterized in that: The cross section of the body (1) is annular, and the outer surface of the body (1) between the wire harness inlet (111) and the wire harness outlet (112) is radially outwardly formed with a flange-shaped connecting portion (13) that abuts against the mounting plate (2).

5. The wire harness sealing assembly according to claim 4, characterized in that: The connection portion (13) protrudes on a surface close to the wire harness outlet (112) to form a sealing ring (133).

6. The wire harness sealing assembly according to claim 4, characterized in that: The mounting plate (2) is provided with mounting holes (21, 22) for inserting fasteners, and the connecting portion (13) is provided with connecting holes (131, 132) communicating with the mounting holes (21, 22).

7. The wire harness sealing assembly according to claim 1, characterized in that: The body (1) is provided with a cylindrical wire harness guide portion (14), the wire harness guide portion (14) comprising a wire harness inlet end (141) and a wire harness outlet end (142), the wire harness inlet end (141) being a free end, and the wire harness outlet end (142) being connected to the wire harness inlet port (111) and communicating with the wire harness inlet port (111).

8. The wire harness sealing assembly according to claim 7, characterized in that: An annular sealing convex rib (143) is formed radially inwardly on the inner wall of the wire harness inlet end (141).

9. The wire harness sealing assembly according to claim 1, characterized in that: The body (1) protrudes radially outward at the edge of the wire harness outlet (112) to form a second reinforcing rib (15), and the second reinforcing rib (15) is used to fix the body (1).

10. An automobile body, characterized in that: The invention comprises a wire harness sealing assembly as described in any one of claims 4 to 6, wherein a mounting surface for mounting the wire harness sealing assembly is provided on the vehicle body, a through hole is provided on the mounting surface, and the connecting portion (13) is abutted between the mounting plate (2) and the mounting surface, and the wire harness outlet (112) passes through the through hole, so that the wire harness inlet (111) and the wire harness outlet (112) are respectively located on both sides of the mounting surface.

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