Wire harness sealing assembly and automobile

Abstract

The wire harness sealing assembly comprises a sealing sleeve and a sealing gasket, the sealing sleeve is attached to a set position, and the sealing gasket is connected with the set position and clamps and fixes the sealing sleeve; according to the wire harness sealing assembly and the automobile disclosed by the utility model, the arrangement of the sealing sleeve realizes the effective protection of the wire harness; the sealing sleeve is clamped and fixed by the sealing gasket and the set position, thereby effectively avoiding the damage of the wire harness caused by the loss of the sealing sleeve, improving the sealing performance of the structure, avoiding the fault of electrical equipment caused by the entry of liquid such as rainwater, and improving the driving safety of a vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing and fixing devices, and relates to a wire harness sealing component and a car. Background Art

[0002] In the automotive field, many wiring harnesses need to pass through the holes in the body sheet metal to be electrically connected to other wiring harnesses or parts. If the wiring harness is not effectively protected during the perforation, it is easy to be cut by the sheet metal, causing short circuits and other faults, and even affecting the safety of the vehicle and personnel.

[0003] At present, the industry mainly uses wiring harness rubber sleeves to protect automobile wiring harnesses; for example, the prior art patent 202021667058.9 discloses a product that uses the circumferential groove of the rubber sleeve itself to cooperate with the preset vias of the sheet metal. However, if the cable is relatively hard and the cable vibrates during driving, the softer rubber may fall off the sheet metal. At the same time, the outside of the sheet metal is generally a wet area, and the wiring harness rubber sleeve also needs to have a sealing function to isolate water from the outside of the sheet metal to prevent it from entering the car and causing electrical failures in the car.

[0004] To solve the above problems, a sealing structure for the wiring harness is needed, which can not only protect the wiring harness and prevent the wiring harness from being damaged due to lack of protection, but also improve the sealing of the structure to prevent liquids such as rainwater from entering, causing electrical equipment failure and affecting vehicle driving safety. Utility Model Content

[0005] In view of this, the utility model discloses a wiring harness sealing assembly and a vehicle, wherein the provision of a sealing sleeve realizes effective protection of the wiring harness; the sealing sleeve is clamped and fixed by a sealing pad and a set position, effectively avoiding damage to the wiring harness due to loss of the sealing sleeve, while also improving the sealing of the structure, avoiding electrical equipment failure caused by the entry of liquids such as rainwater, and improving vehicle driving safety.

[0006] The utility model discloses a wire harness sealing component, comprising a sealing sleeve and a sealing pad. The sealing sleeve is fitted to a set position, and the sealing pad is connected to the set position to clamp and fix the sealing sleeve.

[0007] Furthermore, the sealing sleeve is recessed in the direction of the set position to form a sealing cavity, a guiding channel for passing the wiring harness is provided at the bottom of the sealing cavity, and a wire hole for passing the wiring harness is opened at the position of the sealing gasket corresponding to the sealing cavity.

[0008] Furthermore, it also includes a connecting piece, one end of which is directly or indirectly connected to the sealing pad, and the other end of which passes through the sealing sleeve and is connected to a set position.

[0009] Furthermore, the sealing pad is made of a hard material, the sealing sleeve is made of a flexible material, the sealing pad and the sealing sleeve are integrally formed, and the connecting piece is embedded in the sealing pad and / or the sealing sleeve.

[0010] Furthermore, the sealing sleeve is provided with a first sealing lip and a second sealing lip, and the first sealing lip and the second sealing lip are both arranged on the fitting surface between the sealing sleeve and the set position, the first sealing lip is arranged along the peripheral direction of the sealing cavity and surrounds the sealing cavity in the peripheral direction; the second sealing lip is arranged along the peripheral direction of the connecting piece and surrounds the connecting piece in the peripheral direction.

[0011] Furthermore, the sealing sleeve is provided with a third sealing lip, and the third sealing lip is located at the fitting surface between the sealing sleeve and the set position. The third sealing lip is arranged along the peripheral direction of the sealing sleeve and surrounds the sealing cavity and the connecting piece in the peripheral direction at the same time.

[0012] Furthermore, the guide channel has an inlet and an outlet, and a diameter of the inlet is larger than a diameter of the outlet.

[0013] Furthermore, it also includes a wire harness sealing lip, which is arranged on the inner wall surface of the guide channel and is located near the outlet.

[0014] Furthermore, the wire-passing hole is conformed to the sealing cavity, and the periphery of the wire-passing hole extends in a direction away from the set position to form a convex rib, and the convex rib is connected to the sealing gasket through an arc transition;

[0015] It also includes a reinforcing rib, which extends from the convex rib to the sealing gasket.

[0016] The utility model also discloses a car, which is equipped with the aforementioned wire harness sealing assembly, wherein the set position is the vehicle body at the position to be threaded, and the set position is also provided with a clamping hole conforming to the sealing cavity, the sealing sleeve and the sealing gasket are installed at the set position through a connecting piece, and part of the sealing cavity is arranged through the clamping hole.

[0017] Beneficial effects of the utility model:

[0018] The utility model discloses a wire harness sealing component and a vehicle. The provision of a sealing sleeve realizes effective protection of the wire harness; the sealing sleeve is clamped and fixed by a sealing pad and a set position, which effectively avoids damage to the wire harness due to loss of the sealing sleeve, and at the same time improves the sealing performance of the structure, avoids electrical equipment failure caused by the entry of liquids such as rainwater, and improves the driving safety of the vehicle.

[0019] The sealing sleeve and the sealing gasket of the utility model are formed in an integral manner, and the connecting piece is installed on the sealing sleeve and / or the sealing gasket in an embedded manner, so that the sealing sleeve, the sealing gasket and the connecting piece form a whole, which improves the sealing effect and the assembly efficiency; the setting of multiple sealing lips can effectively ensure the sealing performance; the utility model can effectively prevent the rubber sleeve from falling out of the sheet metal hole while ensuring good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the explosion of the structure of the utility model;

[0021] Figure 2 This is a front view installation structure schematic diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the rear view installation structure of the utility model;

[0023] Figure 4 It is a side view of the installation structure of the utility model;

[0024] Figure 5 It is a rear view structural schematic diagram of the wiring harness sealing assembly of the utility model;

[0025] Figure 6 It is a front structural schematic diagram of the wiring harness sealing assembly of the utility model;

[0026] Figure 7 It is a schematic cross-sectional structural diagram of the wiring harness sealing assembly of the present utility model. DETAILED DESCRIPTION

[0027] It should be noted that, in the description of this specification, the terms "upper", "lower", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] As shown in the figure, the embodiment of the utility model discloses a wire harness sealing assembly, including a sealing sleeve 4 and a sealing pad 1, wherein the sealing sleeve 4 is fitted to the set position 5, and the sealing pad 1 is connected to the set position 5 and clamps and fixes the sealing sleeve 4; in this embodiment, the sealing sleeve 4 is limited to the set position 5 by the sealing pad 1, and the sealing sleeve 4 is mainly used to provide protection for the wiring harness and play a role of sealing and waterproofing. The sealing pad 1 can be installed in the set position 5 by fixing means such as snap fixing, bonding fixing or bolts, and then cooperate with the set position 5 to form a clamping fixation for the sealing sleeve 4, and the sealing sleeve 4 is limited to the set position 5, effectively avoiding the sealing sleeve 4 from falling off or missing during use. In this embodiment, a connecting member 3 is also provided, one end of the connecting member 3 is directly or indirectly connected to the sealing pad 1, and the other end passes through the sealing sleeve 4 and is connected to the set position 5. The connecting member 3 in this embodiment can be a structural member such as a snap or a bolt. Compared with the connection method of adhesive fixing, fixing by the connecting member 3 is more convenient for assembly, and there is no problem of aging of the structural adhesive at the bonding position causing the sealing sleeve 4 to fall off. The sealing gasket 1 in this embodiment is made of hard material, and the sealing sleeve 4 is made of flexible material. The sealing gasket 1 and the sealing sleeve 4 are integrally formed, and the connector 3 is embedded in the sealing gasket 1 and / or the sealing sleeve 4. The sealing gasket 1 is mainly used to prevent the sealing sleeve 4 from being lost. It is more wear-resistant when made of hard material. The sealing sleeve 4 is used for sealing, and the flexible material is more fit, which is more conducive to improving the sealing performance. The sealing gasket 1 and the sealing sleeve 4 are integrally formed, which further improves the sealing performance, avoids falling off, and improves the waterproof performance. At the same time, considering that the sealing gasket 1 and the sealing sleeve 4 are integrally formed, the connector 3 can be directly embedded in the sealing gasket 1, or embedded in the sealing sleeve 4, or in the process of the sealing gasket 1 and the sealing sleeve 4 being integrally formed, the connector 3 is embedded, that is, the connector 3 is embedded between the sealing gasket 1 and the sealing sleeve 4. The embedding of the connector 3 can prevent liquids such as rainwater from penetrating from the end of the connector 3 into the set position 5, further improving the sealing performance and waterproof performance. As shown in the figure, the connector 3 of this embodiment takes a bolt as an example to further illustrate the utility model. As shown in the figure, the connector 3 of this embodiment has a fixed end 301 and a working end 302 along the axial direction, the sealing sleeve 4 is attached to the setting position 5, and the working end 302 of the connector 3 passes through the sealing sleeve 4 and the setting position 5 in sequence, so that the fixed end 301 of the connector 3 and the setting position 5 clamp and fix the sealing sleeve 4, and the sealing pad 1 is attached to the sealing sleeve 4 and covers the working end 302 of the connector 3. In this embodiment, the sealing sleeve 4 and the sealing pad 1 are integrally formed, and the fixed end 301 of the connector 3 is embedded between the sealing sleeve 4 and the sealing pad 1, that is, the aforementioned connector 3 is embedded in the sealing pad 1 and the sealing sleeve 4, and at this time, a part of the fixed end 301 is located in the sealing pad 1 as shown in the figure, and a part is located in the sealing sleeve 4.In this embodiment, the sealing sleeve 4 and the sealing pad 1 are formed by two-color injection molding, which is an integrated molding structure. During the two-color injection molding process, the connector 3 is embedded in the corresponding position. After injection molding, the sealing sleeve 4, the sealing pad 1 and the connecting member 3 form a whole. In this embodiment, the sealing pad 1 is a hard material, such as PA66 plastic, etc. The sealing sleeve 4 is a core component that plays the role of fixing the wiring harness 2 and sealing the wiring harness 2. The material is softer, such as EPDM rubber, etc., and because the sealing sleeve 4 is not made of metal, it has strong salt spray resistance. The connecting member 3 is a component with a locking and limiting function, such as a screw, a bolt, a buckle or a through-hole steel sleeve, etc. The selection of the connecting member 3 can be adjusted by the technicians in this technical field according to the actual situation, and how the sealing sleeve 4 and the sealing pad 1 are installed in the set position 5 through the connecting member 3 is also understandable to the technicians in this technical field, and it will not be repeated here. In this embodiment, the appearance of the sealing sleeve and the sealing pad is conformable, that is, the peripheral contours are consistent, so that the appearance of the two is more neat and beautiful after being fitted.

[0029] In this embodiment, the sealing sleeve 4 is recessed in the direction of the setting position 5 and passes through the setting position 5 to form a sealing cavity 17. The bottom of the sealing cavity 17 is provided with a guide channel 8 for passing the wire harness 2. The sealing pad 1 is provided with a wire hole 18 for passing the wire harness 2 at a position corresponding to the sealing cavity 17. The sealing cavity 17 can effectively improve the sealing performance of the utility model. Compared with directly threading the wires on the sealing sleeve 4, a sealing cavity 17 passing through the setting position 5 is first provided, and then the wire harness 2 is led out through the guide channel 8 at the bottom of the sealing cavity 17 to achieve threading. This method allows the wire harness 2 to be better protected and will not directly contact the setting position 5 of the vehicle body, so that it is effectively sealed, and the life of the wire harness 2 is also improved, and the failure rate is reduced.

[0030] In this embodiment, the sealing sleeve 4 is provided with a first sealing lip 10 and a second sealing lip 9, and the first sealing lip 10 and the second sealing lip 9 are both provided on the fitting surface between the sealing sleeve 4 and the set position. The first sealing lip 10 is provided along the peripheral direction of the sealing cavity 17 and surrounds the sealing cavity 17 in the peripheral direction to form a seal for the sealing cavity 17 at the joint surface position; the second sealing lip 9 is provided along the peripheral direction of the connecting member 3 and surrounds the connecting member 3 in the peripheral direction to form a seal for the connecting member 3 at the joint surface position. The first sealing lip 10 and the second sealing lip 9 are both provided on the contact surface between the sealing sleeve 4 and the set position, and the parts sealed by the above two both involve the need to pass through the set position. In order to ensure that after the sealing sleeve 4 and the set position are fitted and locked, the two parts that need to pass through the set position can be effectively sealed, two sealing lips are provided to improve the sealing effect.

[0031] In this embodiment, the sealing sleeve 4 is provided with a third sealing lip 11, which is located at the fitting surface of the sealing sleeve 4 and the set position. The third sealing lip 11 is arranged along the peripheral direction of the sealing sleeve 4 and surrounds the sealing cavity 17 and the connecting member 3 in the peripheral direction at the same time. The third sealing lip 11 is arranged to seal the sealing cavity 17 and the connecting member 3, as well as the first sealing lip 10 and the second sealing lip 9 at the same time. Combined with the arrangement of the first sealing lip 10 and the second sealing lip 9, multiple sealing is achieved, the sealing reliability is improved, and the sealing effect of the entire sealing sleeve 4 is greatly improved. As shown in the figure, the above three sealing lips are all arranged on the sealing sleeve 4 in an integrated manner, and on the surface where the sealing sleeve 4 and the set position fit together, and each sealing lip is a radially closed annular structure, so that the surrounding sealing becomes effective, which is understandable to those skilled in the art and will not be repeated here.

[0032] In this embodiment, the guide channel 8 has an inlet 12 and an outlet 13, and the diameter of the inlet 12 is larger than the diameter of the outlet 13. In this embodiment, a fillet or chamfer is also provided at the inlet 12, and the diameter of the inlet 12 is designed to be larger than that at the outlet 13, and a fillet or chamfer is also provided at the inlet 12, in order to facilitate threading. In this embodiment, a wire harness sealing lip 14 is also included, and the wire harness sealing lip 14 is provided on the inner wall surface of the guide channel 8 and is located near the outlet 13. Providing the wire harness sealing lip 14 near the outlet 13 of the guide channel 8 is also an effective means to improve the overall sealing effect. There can be multiple guide channels 8, and the diameter of each channel (here refers to the diameter of the threading, that is, the diameter of the wire harness 2 that can pass through, that is, the diameter of the outlet 13, not the diameter of the inlet 12. In order to facilitate threading, the diameter of the inlet 12 is designed to be larger than the actual diameter of the wire harness 2), length, angle and other parameters can be designed according to actual conditions, and the number of wire harness sealing lips 14 can also be adjusted. For example, in this embodiment, six parallel guide channels 8 are designed, and two wire harness sealing lips 14 are set in each guide channel 8, and the diameters of each channel can also be different. After designing multiple guide channels 8, for the guide channel 8 with the wire harness 2 after actual installation, the outer surface of the wire harness 2 and the guide channel 8 can be connected and fixed by means of fixings such as insulating tape bonding to prevent the two from shifting. At the same time, multiple guide channels 8 are set. If there are unused guide channels 8, they can be blocked with sealing blind plugs 7, so that the utility model can be promoted and applied on a platform basis, which is conducive to technical status control and supplier control.

[0033] In this embodiment, the wire hole 18 is conformed to the sealing cavity 17. Here, conformation means that the cross section of the wire hole is the same as the entrance of the sealing cavity, as shown in the figure. The periphery of the wire hole 18 extends in a direction away from the set position 5 to form a convex rib 15, and the convex rib 15 is connected to the sealing gasket 1 through a circular arc transition. In this embodiment, it also includes a reinforcing rib 16, which extends from the convex rib 15 to the sealing gasket 1. The convex rib 15 is a radially closed annular structure arranged on the periphery of the wire hole 18, and a plurality of reinforcing ribs 16 are arranged on it. As shown in the figure, in this embodiment, the reinforcing ribs 16 are evenly distributed along the circumference of the convex rib 15, each of which extends from the convex rib 15 to the body of the sealing gasket 1, that is, the plane of the sealing gasket 1 where the convex rib 15 is arranged, and at the same time, the convex rib 15 and the plane are also connected through a circular arc transition. The setting of the convex rib 15 can strengthen the structural strength of the wire hole 18, and at the same time, with the reinforcing rib 16, the overall structural strength of the sealing gasket 1 can be effectively improved.

[0034] The embodiment of the utility model also discloses a car, which is equipped with the aforementioned vehicle wiring harness 2 sealing assembly, the setting position 5 is the vehicle body at the position to be threaded, the setting position 5 is also provided with a clamping hole 19 conforming to the sealing cavity 17, the sealing sleeve 4 and the sealing gasket 1 are installed at the setting position 5 through the connecting member 3, and part of the sealing cavity 17 passes through the clamping hole 19. In this embodiment, the connecting member 3 is a bolt, the fixed end 301 is the head of the bolt, and the working end 302 is the screw of the bolt. In order to cooperate with the installation and tightening of the bolt, the embodiment is also provided with a nut 6, and at the same time, in order to facilitate the threading of the connecting member 3, a through hole is also opened at the setting position 5. During the double-color injection molding, the head of the bolt is embedded, and after the injection molding is completed, the bolt is also fixed in the sealing sleeve 4 and the sealing gasket 1. Since it is pre-embedded, there is no gap between the connecting member 3 and the sealing sleeve 4. As the use time increases, if there is a gap between the above two, there is also a sealing lip structure and the sealing gasket 1 for sealing, which effectively improves the sealing effect. During installation, the fixed end 301 of the connector 3 and the sealing cavity 17 are passed through the corresponding holes respectively, and then tightened and fixed by the nut 6. Then, the three sealing lips on the sealing sleeve 4 are tightly pressed on the set position 5 by the bolt connection.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A wiring harness sealing assembly, characterized in that: It includes a sealing sleeve and a sealing gasket, wherein the sealing sleeve is fitted to a set position, and the sealing gasket is connected to the set position and clamps and fixes the sealing sleeve; the sealing sleeve is recessed in the direction of the set position to form a sealing cavity, and a guiding channel for passing the wiring harness is provided at the bottom of the sealing cavity, and the sealing gasket is provided with a wire hole for passing the wiring harness corresponding to the position of the sealing cavity.

2. The wire harness sealing assembly according to claim 1, characterized in that: It also includes a connecting piece, one end of which is directly or indirectly connected to the sealing pad, and the other end of which passes through the sealing sleeve and is connected to a set position.

3. The wire harness sealing assembly according to claim 2, characterized in that: The sealing pad is made of a hard material, the sealing sleeve is made of a flexible material, the sealing pad and the sealing sleeve are integrally formed, and the connecting piece is embedded in the sealing pad and / or the sealing sleeve.

4. The wire harness sealing assembly according to claim 2, characterized in that: The sealing sleeve is provided with a first sealing lip and a second sealing lip, and the first sealing lip and the second sealing lip are both arranged on the fitting surface between the sealing sleeve and the set position. The first sealing lip is arranged along the peripheral direction of the sealing cavity and surrounds the sealing cavity in the peripheral direction; the second sealing lip is arranged along the peripheral direction of the connecting piece and surrounds the connecting piece in the peripheral direction.

5. The wire harness sealing assembly according to claim 2, characterized in that: The sealing sleeve is provided with a third sealing lip, and the third sealing lip is located at the fitting surface between the sealing sleeve and the set position. The third sealing lip is arranged along the peripheral direction of the sealing sleeve and surrounds the sealing cavity and the connecting piece at the same time in the peripheral direction.

6. The wire harness sealing assembly according to claim 1, characterized in that: The guide channel has an inlet and an outlet, and a diameter of the inlet is larger than a diameter of the outlet.

7. The wire harness sealing assembly according to claim 1, characterized in that: The invention also includes a harness sealing lip, which is arranged on the inner wall surface of the guide passage and is located near the outlet.

8. The wire harness sealing assembly according to claim 1, characterized in that: The wire-passing hole is conformed to the sealing cavity, and the periphery of the wire-passing hole extends in a direction away from the set position to form a convex rib, and the convex rib is connected to the sealing gasket through an arc transition; It also includes a reinforcing rib, which extends from the convex rib to the sealing gasket.

9. A vehicle, the vehicle being equipped with a wiring harness sealing assembly according to any one of claims 1 to 8, characterized in that: The set position is the vehicle body at the position to be threaded, and the set position is also provided with a clamping hole conforming to the sealing cavity. The sealing sleeve and the sealing gasket are installed at the set position through a connecting piece, and part of the sealing cavity is arranged through the clamping hole.

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