Automobile wiper motor with ventilation structure

Abstract

The utility model relates to the technical field of automobile wiper motors, in particular to an automobile wiper motor with a ventilation structure, which comprises a motor body and a reduction gearbox body, ventilation blocks are arranged at the upper ends of a plurality of first ventilation holes, protective caps are arranged at the upper ends of the ventilation blocks, and first ventilation channels are arranged on the surfaces of the ventilation blocks. The mounting groove is in threaded connection with the breathable block, a plurality of second breathable channels are formed in the lower surface of the protective cap, and first waterproof breathable films are arranged on the inner walls of the first positioning grooves. The protective cap plays a role in protection and sealing, and meanwhile, the automobile wiper motor can exchange gas with the outside through the second ventilation channel, the second ventilation hole and the first ventilation channel; due to the arrangement of the first waterproof breathable film, a large amount of water vapor generated during cold-heat exchange between the interior of the automobile wiper motor and the outside is avoided, and the service life of the automobile wiper motor is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a car wiper motor technical field especially relates to a car wiper motor with ventilative structure. BACKGROUND

[0002] The wiper motor is driven by the motor, and the rotary motion of the motor is converted into the reciprocating motion of the wiper arm through the connecting rod mechanism, so that the wiper action is realized. Generally, when the motor is connected, the wiper can work. By selecting high and low speed gears, the current of the motor can be changed, so as to control the motor speed and further control the wiper arm speed.

[0003] For example, the authorized announcement number "CN218071149U" is named high waterproof car wiper motor. Although two groups of mounting seats are arranged, and a reinforcing ring is arranged between the two mounting seats, the overall installation reliability is good, and mounting holes are formed in the mounting seats. The overall wiper motor installation and disassembly is convenient and good in performance. However, because the car wiper motor is fully sealed, a large amount of water vapor will be generated when the inside of the car wiper motor exchanges with the outside, which will affect the performance of the car wiper motor for a long time, and even affect the service life of the car wiper motor. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a car wiper motor with ventilative structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A car wiper motor with ventilative structure is designed, which comprises a motor body and a reduction box body. A plurality of first ventilative holes are arranged on the upper surface of the reduction box body. A ventilative block is arranged on the upper end of each of the first ventilative holes. A protective cap is arranged on the upper end of each of the ventilative blocks. A first ventilative channel is arranged on the surface of each of the ventilative blocks. The first ventilative channel is in communication with the first ventilative hole. An installation groove is arranged on the lower surface of the protective cap. The installation groove is threadedly connected with the ventilative block. A tight abutting rib is annularly arranged on the surface of the ventilative block. An accommodating groove is arranged at the lower end of the installation groove. A sealing rubber pad is arranged between the upper surface of the tight abutting rib and the inner wall of the accommodating groove. A plurality of second ventilative channels are arranged on the lower surface of the protective cap. A plurality of second ventilative holes are annularly arranged on the inner wall of the first ventilative channel. The second ventilative channel is in communication with the first ventilative channel. A first positioning groove is arranged on the upper end of each of the second ventilative channels. A first waterproof ventilative film is arranged on the inner wall of each of the first positioning grooves.

[0007] Preferably, a second positioning groove is arranged on the lower end of each of the second ventilative channels. A filter screen is arranged on the inner wall of each of the second positioning grooves.

[0008] Preferably, the plurality of second air vents are each provided with a third positioning groove at one end, and the inner wall of the plurality of third positioning grooves is each provided with a second waterproof air permeable film.

[0009] Preferably, the upper surface of the plurality of protective caps is each an arc surface, and the arc surface is an upwardly convex arc surface.

[0010] Preferably, the lower end of the protective cap is annularly provided with a downward flange.

[0011] Preferably, the corner of the plurality of second air passages is each an arc surface.

[0012] The automobile wiper motor with the air permeable structure has the advantages that the protective cap is provided to play a protective and sealing role, and the automobile wiper motor can exchange gas with the outside through the second air passage, the second air vent and the first air passage; the first waterproof air permeable film is provided, so that the outside water vapor cannot pass through the second air passage, the waterproof and air permeable role is played, a large amount of water vapor is avoided from being generated when the inside of the automobile wiper motor and the outside exchange cold and heat, and the service life of the automobile wiper motor is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The figure is a structural schematic view of the utility model;

[0014] Fig. 2 The figure is a structural schematic view of the connection relationship between the reduction gearbox body, the air permeable block and the protective cap of the utility model;

[0015] Fig. 3 The figure is an enlarged view of position A of the utility model.

[0016] In the figure: motor body 1, reduction gearbox body 2, first air vent 3, air permeable block 4, protective cap 5, first air passage 6, mounting groove 7, abutting flange 8, containing groove 9, sealing rubber gasket 10, second air passage 11, second air vent 12, first positioning groove 13, first waterproof air permeable film 14, second positioning groove 15, filter screen 16, third positioning groove 17, second waterproof air permeable film 18, arc surface 19, downward flange 20. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0018] REFERENCE Figs. 1-3The utility model provides an automobile wiper motor with a ventilation structure, comprising a motor body 1 and a reduction gearbox body 2, a plurality of first ventilation holes 3 are arranged on the upper surface of the reduction gearbox body 2, a ventilation block 4 is arranged on the upper end of each of the plurality of first ventilation holes 3, a protective cap 5 is arranged on the upper end of each of the plurality of ventilation blocks 4, a first ventilation channel 6 is arranged on the surface of each of the plurality of ventilation blocks 4, the first ventilation channel 6 is in communication with the first ventilation hole 3, an installation groove 7 is arranged on the lower surface of the protective cap 5, the installation groove 7 is threadedly connected with the ventilation block 4, a clamping edge 8 is annularly arranged on the surface of the ventilation block 4, a containing groove 9 is arranged at the lower end of the installation groove 7, a sealing rubber pad 10 is arranged between the upper inner wall of the containing groove 9 and the upper surface of the clamping edge 8, the sealing rubber pad 10 can be tightly squeezed by the upper inner wall of the containing groove 9 and the upper surface of the clamping edge 8, thereby achieving the sealing effect. A plurality of second ventilation channels 11 are arranged on the lower surface of the protective cap 5, a plurality of second ventilation holes 12 are annularly arranged on the inner wall of the first ventilation channel 6, the second ventilation channel 11 is in communication with the first ventilation channel 6, a first positioning groove 13 is arranged on the upper end of each of the plurality of second ventilation channels 11, and a first waterproof and breathable film 14 is arranged on the inner wall of each of the plurality of first positioning grooves 13.

[0019] A second positioning groove 15 is arranged at the lower end of each of the plurality of second ventilation channels 11, and a filter screen 16 is arranged on the inner wall of each of the plurality of second positioning grooves 15. The filter screen 16 can preliminarily filter large-particle impurities, thereby avoiding damage to the first waterproof and breathable film 14 caused by the large-particle impurities.

[0020] A third positioning groove 17 is arranged at one end of each of the plurality of second ventilation holes 12, and a second waterproof and breathable film 18 is arranged on the inner wall of each of the plurality of third positioning grooves 17. The second waterproof and breathable film 18 further plays a waterproof role.

[0021] The upper surface of each of the plurality of protective caps 5 is an arc surface 19, and the arc surface 19 is an upwardly convex arc surface. The arc surface 19 is not prone to water accumulation, thereby maintaining the dryness of the protective cap 5.

[0022] A downward edge 20 is annularly arranged at the lower end of the protective cap 5. The downward edge 20 plays a role in shielding water flow.

[0023] The corners of the plurality of second ventilation channels 11 are arc surfaces. The corners of the second ventilation channels 11 are avoided from being water-accumulated.

[0024] Working principle: the protective cap 5 plays a role in protection and sealing, and the automobile wiper motor can exchange gas with the outside through the second ventilation channel 11, the second ventilation hole 12, and the first ventilation channel 6; due to the arrangement of the first waterproof and breathable film 14, external water vapor cannot pass through the second ventilation channel 11, thereby playing a role in waterproof and ventilation, avoiding a large amount of water vapor generated when the inside of the automobile wiper motor and the outside exchange cold and heat, and prolonging the service life of the automobile wiper motor.

[0025] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A car windshield wiper motor with a breathable structure, comprising a motor body (1) and a gearbox body (2), characterized in that, The upper surface of the gearbox body (2) is provided with a plurality of first vent holes (3), and each of the plurality of first vent holes (3) is provided with a vent block (4) at its upper end. Each of the plurality of vent blocks (4) is provided with a protective cap (5) at its upper end. Each of the plurality of vent blocks (4) is provided with a first vent channel (6) on its surface. The first vent channel (6) is connected to the first vent hole (3). The lower surface of the protective cap (5) is provided with a mounting groove (7). The mounting groove (7) is threadedly connected to the vent block (4). The surface of the vent block (4) is provided with a circumferential abutment edge (8). The mounting groove is provided with a mounting groove. (7) A receiving groove (9) is provided at the lower end. A sealing gasket (10) is provided between the inner wall of the receiving groove (9) and the upper surface of the abutment edge (8). A plurality of second ventilation channels (11) are provided on the lower surface of the protective cap (5). A plurality of second ventilation holes (12) are provided in a ring on the inner wall of the first ventilation channel (6). The second ventilation channel (11) is connected to the first ventilation channel (6). A first positioning groove (13) is provided at the upper end of each of the plurality of second ventilation channels (11). A first waterproof and breathable membrane (14) is provided on the inner wall of each of the plurality of first positioning grooves (13).

2. The automotive wiper motor with a breathable structure according to claim 1, characterized in that, Each of the second ventilation channels (11) has a second positioning groove (15) at its lower end, and each of the second positioning grooves (15) has a filter screen (16) on its inner wall.

3. The automotive wiper motor with a breathable structure according to claim 1, characterized in that, Each of the multiple second vent holes (12) is provided with a third positioning groove (17) at one end, and the inner wall of each of the multiple third positioning grooves (17) is provided with a second waterproof and breathable membrane (18).

4. A car wiper motor with a breathable structure according to claim 1, characterized in that, The upper surface of each of the protective caps (5) is an arc-shaped surface (19), and the arc-shaped surface (19) is an upwardly convex arc-shaped surface.

5. A car wiper motor with a breathable structure according to claim 1, characterized in that, The lower end of the protective cap (5) is provided with a drooping edge (20).

6. A car wiper motor with a breathable structure according to claim 1, characterized in that, The corners of the multiple second ventilation channels (11) are all curved surfaces.

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