Waterproof structure of rear wiper motor output shaft
By designing a three-stage sealing structure and annular sealing ring at the output shaft of the rear wiper motor, combining the rubber-based output shaft cover with glass interference, the problem of water leakage in the output shaft of the rear wiper motor is solved, achieving a comprehensive waterproofing effect and reducing frictional noise.
Patent Information
- Application Number
- CN202422822224.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The output shaft of the existing rear wiper motor is prone to leakage at the glass opening, causing water to enter the back door, lacking an effective waterproof sealing structure.
The output shaft cover design adopts a three-stage sealing structure and annular sealing ring structure. The output shaft cover is interfered with the motor output shaft, and the output shaft cover is interfered with the glass, combined with the thin-wall telescopic structure to achieve multi-layer sealing and waterproofing.
Effectively prevent water from entering the back door, reduce friction on the motor output shaft, avoid abnormal friction, adapt to motor installation position deviation, and achieve all-round waterproofing effect.
Smart Images
Figure CN223224309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a waterproof structure of an output shaft of a rear wiper motor, which is mainly used in rear wiper systems of various types of automobiles. Background Art
[0002] Most rear wiper motor output shafts on the market now extend from the glass opening and are connected to the wiper arm. The glass opening and the motor output shaft need to be waterproof and sealed to prevent water from entering the rear door.
[0003] To solve the above problems, we have developed a waterproof structure for the output shaft of the rear wiper motor. Summary of the Invention
[0004] The purpose of the utility model is to provide a waterproof structure for the output shaft of a rear wiper motor. The output shaft cover of the structure cooperates with the motor output shaft to adopt a three-section sealing structure, and cooperates with the glass to adopt an annular sealing ring structure, which can effectively prevent water from entering the back door.
[0005] The technical solution of this utility model:
[0006] A waterproof structure for the output shaft of a rear wiper motor includes a rear wiper motor 13, a rear windshield 11, and an output shaft cover 12. The rear wiper motor 13 includes a rear wiper motor output shaft 31. The rear windshield 11 has an opening. The rear wiper motor output shaft 31 passes through the opening of the rear windshield 11 through the output shaft cover 12. The output shaft cover 12 includes a section that cooperates with the output shaft, a transition section, and a section that cooperates with the glass.
[0007] Furthermore, the output shaft cover 12 is made of rubber; and the shape of the output shaft cover is a crater shape.
[0008] Furthermore, the output shaft cover 12 and the rear windshield 11 are interference fit.
[0009] Furthermore, the output shaft cover 12 is interference fit with the rear scraper motor output shaft 31 .
[0010] Furthermore, a three-section sealing structure 21 is provided inside the output shaft cover 12 in the section that cooperates with the output shaft.
[0011] Furthermore, the output shaft cover 12 has an annular sealing ring structure 22 at the section that cooperates with the glass.
[0012] Furthermore, the transition section of the output shaft cover 12 has a thin-wall telescopic structure 23 .
[0013] The utility model has the following features:
[0014] 1. The rear windshield, output shaft cover and output shaft of the rear wiper motor of the utility model are assembled together to achieve waterproofing.
[0015] 2. The output shaft cover is made of rubber and is compressed and inserted into the opening of the rear windshield. The output shaft cover and the rear windshield have an interference fit to prevent water leakage.
[0016] 3. The output shaft cover and the output shaft of the rear scraper motor are interference fit to prevent water leakage.
[0017] 4. The three-section sealing structure of the output shaft cover cooperates with the motor output. This structure can effectively prevent water and reduce friction with the motor output shaft, avoiding abnormal friction noise when the output shaft rotates; the annular sealing ring structure of the output shaft cover cooperates with the glass, and the structure here can be compressed and deformed, effectively preventing water; the thin-walled telescopic structure of the output shaft cover can be telescopic and deflected, avoiding the problem of poor cooperation between the three-section sealing structure and the motor output shaft due to deviation in the motor installation position. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the rear wiper system;
[0019] Figure 2 This is a schematic diagram of the output shaft cover and glass assembly;
[0020] Figure 3 This is a schematic diagram of the assembly of the output shaft cover and the rear scraper motor;
[0021] Figure 4 It is a schematic diagram of the output shaft cover structure.
[0022] Markings in the figure:
[0023] 11. Rear windshield, 12. Output shaft cover, 13. Rear wiper motor;
[0024] 21. Three-stage sealing structure, 22. Annular sealing ring structure, 23. Thin-wall telescopic structure;
[0025] 31. Rear scraper motor output shaft. DETAILED DESCRIPTION
[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0027] See also Figure 1-4 A waterproof structure for a rear wiper motor output shaft includes a rear wiper motor 13, a rear windshield 11, and an output shaft cover 12. The rear wiper motor 13 includes a rear wiper motor output shaft 31. The rear windshield 11 has an opening. The rear wiper motor output shaft 31 passes through the output shaft cover 12 and exits the opening of the rear windshield 11. The output shaft cover 12 includes a section that cooperates with the output shaft, a transition section, and a section that cooperates with the glass.
[0028] The output shaft cover 12 is made of rubber; the output shaft cover is shaped like a crater;
[0029] The output shaft cover 12 and the rear windshield 11 are interference fit;
[0030] The output shaft cover 12 is interference fit with the rear scraper motor output shaft 31;
[0031] The output shaft cover 12 is provided with a three-section sealing structure 21 inside the section that cooperates with the output shaft; the three-section sealing structure 21 cooperates with the motor output, and the use of this structure can effectively prevent water and reduce the friction with the motor output shaft, thereby avoiding abnormal friction noise when the output shaft rotates;
[0032] The output shaft cover 12 has an annular sealing ring structure 22 at the section where it fits with the glass. The annular sealing ring structure 22 fits with the glass and the structure at this section can be compressed and deformed, effectively waterproofing the glass.
[0033] The transition section of the output shaft cover 12 has a thin-wall telescopic structure 23 ; the thin-wall telescopic structure 23 can be telescopic and deflected to avoid the problem of poor matching between the three-section sealing structure 21 and the motor output shaft due to deviation in the motor installation position.
[0034] The utility model has the following features:
[0035] 1. The rear windshield, output shaft cover and output shaft of the rear wiper motor of the utility model are assembled together to achieve waterproofing.
[0036] 2. The output shaft cover is made of rubber and is compressed and inserted into the opening of the rear windshield. The output shaft cover and the rear windshield have an interference fit to prevent water leakage.
[0037] 3. The output shaft cover and the output shaft of the rear scraper motor are interference fit to prevent water leakage.
[0038] 4. The three-section sealing structure of the output shaft cover cooperates with the motor output. This structure can effectively prevent water and reduce the friction with the motor output shaft, avoiding abnormal noise caused by friction when the output shaft rotates.
[0039] 5. The annular sealing ring structure of the output shaft cover cooperates with the glass. The structure here can be compressed and deformed, which is effective in waterproofing.
[0040] 6. The thin-wall telescopic structure of the output shaft cover can be telescopic and deflected to avoid the problem of poor fit with the motor output shaft due to deviation in the motor installation position.
[0041] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications to the above embodiments made based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A waterproof structure for a rear wiper motor output shaft, characterized by: The rear wiper motor (13) comprises a rear wiper motor output shaft (31), a rear windshield (11) and an output shaft cover (12); the rear wiper motor (13) comprises a rear wiper motor output shaft (31); the rear windshield (11) has an opening; the rear wiper motor output shaft (31) passes through the output shaft cover (12) and out of the opening of the rear windshield (11); the output shaft cover (12) comprises a section that cooperates with the output shaft, a transition section, and a section that cooperates with the glass.
2. The waterproof structure of the rear wiper motor output shaft according to claim 1, characterized in that: The output shaft cover (12) is made of rubber; the output shaft cover is shaped like a crater.
3. The waterproof structure of the rear wiper motor output shaft according to claim 1, characterized in that: The output shaft cover (12) and the rear windshield (11) are interference-fitted.
4. The waterproof structure of the rear wiper motor output shaft according to claim 1, characterized in that: The output shaft cover (12) is interference-fitted with the rear scraper motor output shaft (31).
5. The waterproof structure of the rear wiper motor output shaft according to claim 1, characterized in that: A three-section sealing structure (21) is provided inside the output shaft cover (12) at a section that cooperates with the output shaft.
6. The waterproof structure of the rear wiper motor output shaft according to claim 1, characterized in that: The output shaft cover (12) has an annular sealing ring structure (22) at the section that matches the glass.
7. The waterproof structure of the rear wiper motor output shaft according to claim 1, characterized in that: The transition section of the output shaft cover (12) has a thin-wall telescopic structure (23).