Sealing structure for windscreen wiper and vehicle water guide assembly with sealing structure

Abstract

The utility model relates to the field of windscreen wipers, in particular to a sealing structure for a windscreen wiper and a vehicle water guide assembly with the sealing structure, which comprises a sealing piece, the sealing piece is sleeved on an output shaft of a windscreen wiper mechanism and embedded in a via hole of a ventilation cover plate; the sealing piece comprises a sleeving framework, and a rubber piece is arranged on the sleeving framework in an injection molding mode. The sealing element is arranged on the output shaft of the windscreen wiper mechanism, so that a good protection and sealing effect can be achieved, and water is prevented from immersing into the windscreen wiper mechanism and the front cabin along the output shaft; the wiper motor is in a dry working environment, and the risk that water enters the wiper motor is completely avoided.

Description

Technical Field

[0001] The utility model relates to the field of windshield wipers, in particular to a sealing structure for windshield wipers and a vehicle water guiding assembly with the sealing structure. Background Art

[0002] In recent years, with the increase in automobile exports, the vehicle development needs to cope with more complex environments.

[0003] As an important part for cleaning rainwater, automobile windshield wipers often have quality problems such as motor water ingress and abnormal motor operation in some countries with more rainwater, such as Southeast Asia. These problems seriously affect the vehicle quality and cause great complaints from customers.

[0004] To solve this problem, many vehicle manufacturers have improved the waterproof level of automobile windshield wiper motors from the current IP54 to IP67, and the problem of motor water ingress has been improved.

[0005] Due to the improvement of the waterproof level of the windshield wiper motor, it is necessary to change the manufacturing process of the motor and improve the machining accuracy of the motor. And only a few joint venture suppliers can meet the waterproof level of IP67, resulting in a significant increase in procurement costs.

[0006] Therefore, in order to increase the waterproof level of the windshield wiper motor while reducing costs, it is necessary to optimize the design of the existing windshield wiper mechanism.

[0007] After retrieval, the existing patent 201320607324.2 - an automobile front windshield lower trim panel does not clearly disclose the technical inspiration for solving the above technical problems. Content of the Utility Model

[0008] The purpose of the utility model is to provide a sealing structure that can improve the waterproof performance of the windshield wiper motor.

[0009] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0010] A sealing structure for a windshield wiper, comprising a sealing member, the sealing member is sleeved on the output shaft of the windshield wiper mechanism and is embedded in the through hole of the ventilation cover plate.

[0011] The sealing member includes a sleeved skeleton, and a rubber member is injection molded on the sleeved skeleton.

[0012] A clamping ring groove is provided on the rubber member; the rubber member is clamped on the through hole of the ventilation cover plate through the clamping ring groove.

[0013] The sleeved skeleton is an injection molded part POM.

[0014] The sleeved skeleton includes a skeleton body, and a sleeved through hole is provided on the skeleton body, and the sleeved through hole is a tapered hole.

[0015] An embedding ring groove is provided on the outer side surface of the skeleton body.

[0016] The vertical cross-section of the rubber part is wavy.

[0017] A vehicle water guiding assembly includes a ventilation cover plate, and a through hole is provided on the ventilation cover plate; the sealing structure is embedded in the through hole.

[0018] The ventilation cover plate includes a base plate, and a through hole is provided on the base plate; a flow-blocking flanging is provided at the edge of the base plate; a drain hole is provided on the base plate.

[0019] A drain grille is provided in the drain hole; a drainage pipe is connected to the drain hole.

[0020] The advantages of the present utility model are as follows:

[0021] The present utility model discloses a sealing structure for a windshield wiper and a vehicle water guiding assembly having the sealing structure.

[0022] By providing a seal on the output shaft of the windshield wiper mechanism, the present utility model can play a good protective sealing role, avoiding water from infiltrating into the windshield wiper mechanism and the interior of the front compartment along the output shaft; enabling the windshield wiper motor to be in a dry working environment and completely avoiding the risk of water ingress into the windshield wiper motor. Description of the Drawings

[0023] The following briefly describes the content expressed in each drawing of the specification of the present utility model and the marks in the drawings:

[0024] Figure 1 It is a schematic structural diagram of the present utility model.

[0025] Figure 2 It is an exploded view of the present utility model.

[0026] Figure 3 It is a schematic diagram of a partial structure of the present utility model.

[0027] The marks in the above-mentioned drawings are all:

[0028] 1. Ventilation cover plate, 13. Through hole, 2. Seal, 21. Rubber part, 22. Socketing skeleton, 23. Clamping ring groove, 24. Socketing through hole, 3. Windshield wiper mechanism, 31. Output shaft, 4. Drain grille, 5. Drainage pipe. Detailed Description of the Preferred Embodiment

[0029] The following further details the specific embodiments of the present utility model by describing the optimal embodiments with reference to the drawings.

[0030] A sealing structure for a windshield wiper, including a seal 2, the seal 2 is sleeved on the output shaft 31 of the windshield wiper mechanism 3 and embedded in the through hole 13 of the ventilation cover plate 1; by setting the seal 2 on the output shaft 31 of the windshield wiper mechanism 3 in the present utility model, a good protective sealing effect can be achieved, avoiding water liquid from infiltrating into the windshield wiper mechanism 3 and the interior of the front compartment along the output shaft 31; enabling the windshield wiper motor to be in a dry working environment and completely avoiding the risk of water ingress into the windshield wiper motor.

[0031] The sealing structure disclosed in the present utility model is mainly used for sealing the connection between the output shaft 31 of the windshield wiper mechanism 3 and the ventilation cover plate 1.

[0032] Specifically, the sealing structure disclosed in the present utility model mainly includes a seal 2. During actual use, the seal 2 is sleeved on the corresponding output shaft 31 and embedded in the ventilation cover plate 1, thereby realizing the sealing operation at the position where the output shaft 31 passes through the ventilation cover plate 1.

[0033] Furthermore, in the present utility model, the seal 2 includes a sleeved skeleton 22, and a rubber part 21 is injection-molded on the sleeved skeleton 22; the setting of the sleeved skeleton 22 ensures the overall structural strength of the seal 2, and the setting of the rubber part 21 plays a good protective role, enabling the seal 2 to have a certain ductility and facilitating subsequent clamping on the through hole 13.

[0034] Furthermore, in the present utility model, a clamping ring groove 23 is provided on the rubber part 21; the rubber part 21 is clamped on the through hole 13 of the ventilation cover plate 1 through the clamping ring groove 23; the clamping ring groove 23 is a connecting groove. During subsequent use, the setting of the clamping ring groove 23 facilitates the clamping of the rubber part 21 on the through hole 13.

[0035] Meanwhile, in the present utility model, the sleeved skeleton 22 is an injection-molded part POM; the sleeved skeleton 22 is a plastic part with self-lubrication, thereby avoiding rotational friction noise when the output shaft 31 rotates with the sleeved skeleton 22.

[0036] Furthermore, in the present utility model, the sleeved skeleton 22 includes a skeleton body, and a sleeved through hole 24 is provided on the skeleton body. The sleeved through hole 24 is a frustum-shaped hole; the setting of the skeleton body is the main structure of the sleeved skeleton 22, and the setting of the sleeved through hole 24 facilitates the sleeving of the output shaft 31 on the seal 2. Meanwhile, in the present utility model, the sleeved through hole 24 is a frustum-shaped hole; during actual layout, when the sleeved through hole 24 is arranged on the vehicle, it is required that the smaller end of the size of the sleeved through hole 24 is at the upper side and the larger end of the size of the sleeved through hole 24 is at the lower side. Based on such a design, it not only facilitates the sleeving between the output shaft 31 and the seal 2 but also ensures the sealing effect.

[0037] Further, an embedding ring groove is provided on the outer side surface of the framework body in the present utility model. Based on such a setting, it is convenient for the rubber part 21 to be embedded and installed on the support framework during subsequent use.

[0038] Meanwhile, in the present utility model, the vertical cross-section of the rubber part 21 is wavy; such a setting enables the rubber part 21 to have a function similar to that of a spring, ensuring the stability of the connection between the rubber part 21 and the through-hole 13.

[0039] A vehicle water guiding assembly includes a ventilation cover plate 1, and a through-hole 13 is provided on the ventilation cover plate 1; the sealing structure is embedded in the through-hole 13; during actual use, the seal 2 is sleeved on the corresponding output shaft 31 and is embedded in the ventilation cover plate 1, thereby realizing the sealing operation at the position where the output shaft 31 passes through the ventilation cover plate 1.

[0040] Further, in the present utility model, the ventilation cover plate 1 includes a base plate 11, and a through-hole 13 is provided on the base plate 11; a flow-blocking flanging 12 is provided at the edge of the base plate 11; a drain hole is provided on the base plate 11; the base plate 11 is a bottom plate structure, and the setting of the flow-blocking flanging 12 enables the ventilation cover plate 1 to form a sunken structure, making the ventilation cover plate 1 disclosed in the present utility model form a structure similar to a water flow groove, facilitating subsequent drainage operations; the setting of the drain hole facilitates the external discharge of water liquid through the ventilation cover plate 1.

[0041] Further, a drainage grille 4 is provided in the drain hole; the drain hole is connected with a drainage pipe 5; the drainage grille 4 plays a good protective role, preventing sundries from entering the drain hole and blocking it. At the same time, the drain hole is connected with a drainage pipe 5. During subsequent use, the water liquid on the ventilation cover plate 1 can be directly discharged outside the vehicle through the drainage pipe 5 without passing through the traditional water flow groove structure.

[0042] Specifically:

[0043] The present utility model discloses a sealing structure for a windshield wiper and a vehicle water guiding assembly having the sealing structure.

[0044] The essence of the present utility model is to install a seal 2 at the connection between the output shaft 31 of the windshield wiper mechanism 3 and the through-hole 13 of the ventilation cover plate 1, thereby playing a good role in blocking and separating, preventing rainwater from entering the vehicle along the output shaft 31; it is equivalent to completely closing the water flow groove to prevent water flow from entering.

[0045] Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A sealing structure for a wiper, characterized in that: It comprises a sealing member, which is sleeved on the output shaft of the wiper mechanism and embedded in the through hole of the ventilation cover plate; The sealing member comprises a sleeve frame, and a rubber member is injection-molded on the sleeve frame; The rubber piece is provided with a snap ring groove; the rubber piece is snapped onto the through hole of the ventilation cover plate through the snap ring groove; the sleeve frame includes a frame body, the frame body is provided with a sleeve through hole, and the sleeve through hole is a frustum-shaped hole.

2. A sealing structure for a wiper according to claim 1, characterized in that: The sleeve frame is an injection molded part POM.

3. A sealing structure for a wiper according to claim 1, characterized in that: The outer side surface of the frame body is provided with an embedded annular groove.

4. A sealing structure for a wiper according to claim 1, characterized in that: The vertical cross section of the rubber piece is wavy.

5. A water guide assembly for a vehicle, characterized in that: It comprises a ventilation cover plate, wherein the ventilation cover plate is provided with a through hole; The sealing structure for wipers as described in any one of claims 1 to 4 is embedded in the via hole.

6. A vehicle water guide assembly according to claim 5, characterized in that: The ventilation cover plate comprises a base plate, the base plate is provided with a through hole; a flow-blocking flange is provided at the edge of the base plate; and a drainage hole is provided on the base plate.

7. A vehicle water guide assembly according to claim 6, characterized in that: A drainage grille is arranged in the drainage hole; and a drainage pipe is connected to the drainage hole.

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