washer motor of a vehicle

专利摘要:
According to the present invention, a rubber damper capable of absorbing the horizontal flow of the rotor shaft is interposed between the yoke and the bearing for supporting the rotor shaft, so that the rotor shaft can be stably supported even if there are machining errors and quality changes in the yoke or the housing. To prevent damage caused by unnecessary load of the washer motor.
公开号:KR20040033445A
申请号:KR1020020062540
申请日:2002-10-14
公开日:2004-04-28
发明作者:김세철
申请人:현대자동차주식회사；
IPC主号:

专利说明:

Washer motor of a vehicle
[11] The present invention relates to a washer motor embedded in a washer pump used for spraying washer liquid on a windshield glass of a vehicle, and more particularly, to a structure of the washer motor.
[12] FIG. 1 shows a washer pump 102 provided at a lower end of a washer tank 100 loaded on a vehicle, and the washer fluid pumped from the washer pump 102 is transferred to the windshield glass through the washer liquid supply pipe 104. It is intended to be sprayed.
[13] The washer pump 102 as described above is built in the washer motor 106 as shown in Figure 2 to generate a pressure for pumping the washer fluid, looking at the structure of the washer motor 106, amateur coil The rotor 110 is wound around the rotor 110 and the magnet 112 is installed on the outside of the rotor 110. The rotor 110 is rotated by a current supplied to the armature coil 108. do.
[14] The magnet 112 and the rotor 110 constituting the washer motor 106 are supported by a steel yoke 116 inside the housing 114 of the washer pump made of plastic, the lower end of the yoke 116 A forming unit 118 is formed in the support shaft 120 to support the rotor shaft 122, which is a rotation shaft of the rotor 110, between the lower side of the bearing 122 and the housing 114. There is a seal 124 for securing the watertightness is interposed.
[15] In the washer pump 102 configured as described above, the operation failure of the washer motor 106 occurs a lot because the support state of the rotor shaft 122 is poor. That is, the housing 114 of the washer pump is mainly formed of a plastic material, so that deformation often occurs as the service period elapses, and the yoke 116 supporting the washer motor 106 is produced by press working. Therefore, since the rotor shaft 122 is difficult to continuously secure a proper support state for the housing 114 and the yoke 116 due to a large number of processing errors, the rotor 110 and the housing 114 may be separated from each other. In this case, unnecessary friction is generated or damage of the washer motor 106 occurs due to an unnecessary load increase due to eccentricity of the magnet 112 of the rotor 110.
[16] Accordingly, the present invention has been made to solve the above problems, and even if there is a machining error and quality change of the yoke or the housing, the rotor shaft can be stably supported to prevent damage caused by unnecessary load of the washer motor. It is an object of the present invention to provide a washer motor of a vehicle so as to prevent it.
[1] 1 is a view showing a state in which a washer pump of a vehicle is mounted;
[2] 2 is a view showing a washer motor embedded in the washer pump;
[3] 3 is a view showing a washer motor according to the present invention.
[4] <Brief description of symbols for the main parts of the drawings>
[5] One; Washer motor 3; housing
[6] 5; Rotor shaft 7; Rotor
[7] 9; Magnet 11; York
[8] 13; Upper forming unit 15; bearing
[9] 17; Rubber damper 19; seal
[10] 21; Horizontal protrusion
[17] Washer motor of the present invention for achieving the object as described above and the yoke surrounding the rotor and the magnet is a rotor shaft protruding downward from the inside of the housing;
[18] An upper forming portion formed to protrude upward from the rotor shaft on a lower surface of the yoke surrounding the rotor shaft;
[19] A rubber damper interposed between the vertical surface of the upper forming part and the vertical surface of the bearing installed on the rotor shaft;
[20] And a seal interposed between the lower side of the bearing and the housing.
[21] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
[22] Figure 3 shows a washer motor of a vehicle according to the present invention, the basic configuration of the washer motor is the same as the conventional washer motor consisting of a rotor and a magnet, but the bearing and the rotor shaft formed to protrude downward from the rotor In the specific shape supported by the yoke, it is distinguished from the conventional washer motor.
[23] That is, the washer motor 1 of the present embodiment includes a yoke 11 surrounding the rotor 7 and the magnet 9, from which the rotor shaft 5 protrudes downward from the inside of the housing 3 of the washer pump, and the rotor shaft. An upper forming part 13 formed on the lower side of the yoke 11 surrounding the rotor 5 so as to protrude upward from the rotor shaft 5, a vertical surface of the upper forming part 13 and the rotor. It includes a rubber damper 17 interposed between the vertical surfaces of the bearing 15 installed on the shaft 5 and a seal 19 interposed between the lower side of the bearing 15 and the housing 3. .
[24] Therefore, the bearing 15 supporting the rotor shaft 5 can flow in the horizontal direction within the range in which the rubber damper 17 is deformed with respect to the yoke 11, so that the machining of the yoke 11 is poor. And even if there is a deformation of the housing 3 or the like, it is possible to secure the appropriate support state of the rotor 7 while deforming the rubber damper (17).
[25] That is, when the rotor shaft 5 causes interference or unnecessary friction due to the failure of the yoke 11 and the housing 3, the rubber damper 17 is deformed and the rotor shaft 5 and the bearing are deformed. It is to absorb the movement of the (15) to ensure a stable support state of the rotor shaft (5).
[26] On the other hand, the rubber damper 17 has a horizontal protrusion 21 to support between the lower side of the yoke 11 and the housing 3, which is the yoke 11 and the housing (3) Even if the housing 3 is deformed therebetween, the housing 3 is absorbed and is thus prevented from affecting the positional relationship between the rotor 7 and the magnet 9 inside the yoke 11 and between the housing 3 and the yoke 11. To support it.
[27] Therefore, even if the processing of the yoke generated during the manufacture of the washer pump, the deformation of the housing due to the elapse of the use period, etc., the rotor 7 located inside the yoke 11 is the rubber damper 17. By being prevented from being influenced by the outside, and can be moved and supported in a state in which friction or interference can be minimized, the washer motor 1 does not cause damage due to the generation of unnecessary load.
[28] According to the present invention as described above, even if there is a machining error and quality change of the yoke and the housing by interposing a rubber damper capable of absorbing the horizontal flow of the rotor shaft between the yoke and the bearing supporting the rotor shaft, It can be stably supported to prevent damage caused by unnecessary load of washer motor.

权利要求:
Claims (2)
[1" claim-type="Currently amended] A yoke surrounding the rotor and the magnet from which the rotor shaft protrudes from the inside of the housing;
An upper forming portion formed to protrude upward from the rotor shaft on a lower surface of the yoke surrounding the rotor shaft;
A rubber damper interposed between the vertical surface of the upper forming part and the vertical surface of the bearing installed on the rotor shaft;
A seal interposed between the lower side of the bearing and the housing;
Washer motor of a vehicle comprising a.
[2" claim-type="Currently amended] The method of claim 1,
The rubber damper is provided with a horizontal protrusion so as to support between the lower side of the yoke and the housing
Washer motor of the vehicle, characterized in that.

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同族专利:

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2002-10-14|Application filed by 현대자동차주식회사

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2002-10-14|Priority to KR1020020062540A

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2004-04-28|Publication of KR20040033445A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020020062540A|KR20040033445A|2002-10-14|2002-10-14|washer motor of a vehicle|