JPH0550964U - Motor device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a novel motor device having improved waterproof performance. A motor device 1 comprising a motor 17 and a motor case 3 covering the motor, and having a breathing pipe 6 in the motor case, wherein a pipe made of synthetic resin is bent into a substantially L shape on the breathing pipe. One end of the waterproof cover 18 thus formed was attached to the outside. Even if the motor device is splashed with water, the water is prevented from entering the inside of the motor case by being hindered by the waterproof cover.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a novel motor device. Specifically, it aims to provide a new motor device with improved waterproof performance.

[0002]

[Prior Art]

 FIG. 9 shows a conventional motor device a.

The motor device a is a motor device for a pump that supplies cleaning water to a window washer, a headlamp washer, and the like mounted on an automobile.

Reference numeral b denotes a case body that also serves as a motor case, and includes a substantially cylindrical motor case portion c with both ends closed and a pump case portion d connected to one closed end of the motor case portion c. It is integrally formed of synthetic resin.

Reference numeral e denotes a rotary shaft rotatably supported by the motor case portion c so as to be located at the center thereof, and one end e ′ of the rotary shaft e projects into the pump case portion d.

F is an armature fixed to a portion of the rotary shaft e located in the motor case portion c, which is located closer to the pump case d, and g is also in the motor casing portion c of the rotary shaft e. The commutator is fixed to a position near the other end of the positioned portion, and in the motor case portion c, a field magnet h is provided at a position surrounding the armature f, and a brush i in contact with the commutator g is provided. It is supported.

An impeller j is arranged in the pump case portion d, and the impeller j is fixed to one end portion e ′ of the rotating shaft e 1.

When the rotating shaft e is rotated, the impeller j is rotated so that the fluid flows in from the inflow port k of the pump case portion d and flows out from the outflow port l.

In order for the rotating part of the armature f or the like to rotate in the motor, the motor case part c needs to be in communication with the outside. Therefore, the breathing port m is provided at one end of the motor case part c. Has been formed.

[0010]

[Problems to be solved by the device]

 By the way, when a motor device is used for a pump that supplies cleaning water to a window washer, a headlamp washer, etc. of an automobile, water is often splashed on the motor case.

Therefore, if there is a hole in the motor case portion c that communicates with the outside, such as the breathing port m, as in the above-described motor device a, when water is splashed, the water will enter the motor case portion c. There is a problem in that it may enter and cause accidents such as short circuits and the occurrence of rust.

[0012]

[Means for Solving the Problems]

 Therefore, in order to solve the above-mentioned problems, the motor device of the present invention comprises a motor and a motor case that covers the motor, and the motor case has a breathing hole. The hole is provided with a waterproof cover.

[0013]

[Action]

 Therefore, in the motor device of the present invention, even if water is splashed on the motor device, since the breathing hole is provided with the waterproof cover, the water is extremely unlikely to enter the motor case. This has the effect that an accident such as a short circuit caused by the intrusion of water into the motor case is unlikely to occur.

[0014]

【Example】

 The details of the motor device of the present invention will be described below with reference to the respective embodiments shown in the accompanying drawings.

1 to 3 show a motor device 1 according to a first embodiment.

Reference numeral 2 denotes a case body, each part of which is integrally formed of synthetic resin.

Reference numeral 3 denotes a substantially cylindrical motor case portion, both ends of which are closed by respective walls 4 and 5. A breathing pipe 6 is formed at a position displaced from the center of the front end wall 4 of the motor case portion 3 so as to project forward and communicate with the internal space of the motor case portion 3.

Reference numeral 7 denotes a pump case portion, the inner space of which is a thick disc shape. The central portion of the rear end of the pump case portion 7 and the central portion of the front end of the motor case portion 3 are connected by a thinner cylindrical connecting portion 8 and the space members of both are connected. ing.

An inflow pipe 9 is provided so as to project from the center of the front end wall of the pump case portion 7 toward the front, and an outflow pipe 10 protruding from the side wall in a substantially tangential direction of the side wall. It is projected. An impeller 11 is rotatably housed in the internal space of the pump case portion 7. When the impeller 11 rotates in a predetermined direction, fluid flows from the inflow pipe 9 into the pump case portion 7. To the outflow pipe 10 and then out through the outflow pipe 10.

Reference numeral 12 denotes a rotating shaft, which is rotatably supported by the motor case portion 3 so as to extend substantially along the central axis of the motor case portion 3. One end portion 12 a of the rotating shaft is inserted through the connecting portion 8. It projects into the pump case portion 7, and the impeller 11 is fixed to the one end portion 12a.

Reference numeral 13 is a commutator fixed to a position near the other end of the rotary shaft 12, and 14 is an armature fixed to a position near one end of a part of the rotary shaft 12 located in the motor case portion 3. ..

Further, 15 is a field magnet and 16 is a brush, both of which are supported in the motor case portion 3. The field magnet 15 is at a position surrounding the armature 14, and the brush 16 is the commutator. It is arranged at a position that contacts 13 respectively.

Thus, the rotary shaft 12, the commutator 13, the armature 14, the field magnet 15, the brush 16 and the like constitute a motor 17.

Reference numeral 18 denotes a waterproof cover formed by bending a synthetic resin pipe into a substantially L shape, and one end of the waterproof cover is attached to the breathing pipe 6 in an externally fitted shape.

Even if the motor device 1 is exposed to water, however, the breathing pipe 6 of the motor case portion 3 has the waterproof cover 18 attached to the breathing pipe 6, so that the maze is lost. The water is prevented from entering the inside of the motor case portion 3.

FIG. 4 shows another mode of use of the motor device 1.

The above-described motor device 1 has a sufficient waterproof effect in a state in which no water is immersed. The air in the room is cooled and contracts, and the force may inhale outside water.

Therefore, when it is expected that the motor case portion 3 of the motor device 1 will be flooded, the relay box 19 is arranged at a portion of the vehicle where there is no possibility of flooding. The relay box 19 is provided with a connecting pipe 20 projecting from the side surface thereof and a suction pipe 21 hung vertically from the lower surface, and the waterproof cover 18 of the motor case portion 3 and the connecting pipe 20 of the relay box 19 are connected to each other. The tubes are connected to each other.

However, in the use mode shown in FIG. 4, even if the motor case portion 3 of the motor device 1 is vertically submerged, as long as the relay box 19 is not submerged, the water is still contained in the motor case portion 3. Will never invade.

FIG. 5 shows still another example of the usage of the motor device of the present invention.

Reference numeral 23 denotes an outer cover formed of a material having water repellency and air permeability, such as GORE-TEX (trade name), and is arranged so as to surround the lower end opening of the waterproof cover 18.

Then, even if water splashes from below toward the lower end opening of the waterproof cover 18, the water is blocked by the outer cover 23, so that it may enter the motor case portion 3 through the waterproof cover 18. Absent. Moreover, since the outer cover 23 has air permeability, breathing in the motor case portion 3 is not disturbed.

Next, a second embodiment 1A of the motor device of the present invention will be described with reference to FIGS. 6 to 8.

With regard to the second embodiment 1A, the differences from the first embodiment described above will be mainly described, and the parts that do not differ in function from the respective parts of the first embodiment will be described in the first embodiment. By giving the same reference numerals to the respective parts of the practical example, the description thereof will be omitted.

As shown in FIG. 6, the motor device 1A differs from the first embodiment in the shapes of the breathing pipe and the waterproof cover.

That is, at a position displaced from the center of the front end wall 4 of the motor case portion 3, there is integrally formed a substantially L-shaped breathing pipe 24 which projects forward and is bent downward. An engaging step 25 is provided at the tip of the breathing pipe.

Reference numeral 26 denotes a synthetic resin waterproof cover that is substantially U-shaped when viewed in the front-rear direction, and has a conductive hole 27 formed therein. It has an inverted T-shape that communicates with the portions 28, 28 and the opening 30 of the connecting portion 29 that connects the breathing pipe 24 opened at the center of the upper surface of the lower end portion.

The connecting portion 29 has a short tubular shape, and an engaging protrusion 29a slightly protruding outward is formed at the upper end of the connecting portion 29.

Reference numerals 31 and 31 are engaging claws formed on the surfaces of the upper end of the waterproof cover 26 that face each other.

Reference numeral 32 denotes a rubber, for example, a connection tube made of EPDM, which assists the connection between the breathing pipe 24 and the waterproof cover 26, and has a through hole 33 penetrating upward, and a downwardly facing step at a substantially middle portion thereof. By providing the portion 34, the lower half portion 33b has a larger diameter than the upper half portion 33a and the lower half portion 33b.

Reference numerals 35 and 35 are engagement ribs projecting from the connecting portion 8 connecting the motor case portion 3 and the pump case portion 7 of the case body 2 to the left and right sides.

Then, after the connecting tube 32 is externally fitted to the connecting portion 29 of the waterproof cover 26, the breathing pipe 24 is attached to the engaging step portion 25 and the through hole of the upper half portion 33 a of the through hole 33 of the connecting tube 32. It is pushed until the step portion 34 of 33 is engaged, and the engaging ribs 35, 35 of the case body 2 and the engaging claws 31, 31 of the waterproof cover 26 are elastically engaged, so that the waterproof The cover 26 is attached to the case body 2.

Therefore, the inside and the outside of the motor case portion 3 are communicated with each other by the labyrinthine holes 33-30-27-28 and 28 formed by the breathing pipe 24 and the waterproof case 26, and thus the motor device 1A. Even if water is splashed on the inside, the water is prevented from entering the inside of the motor case 3.

Further, since the waterproof cover 26 is provided with the two openings 28, 28 on both sides thereof, it is assumed that water enters one side of the opening 28 while the motor 17 is at a high temperature. However, since the inside and outside of the motor case 3 are still communicated with each other by the other opening 28, the water is not sucked into the inside of the motor case 3.

[0045]

[Effect of the device]

 As is clear from the above description, the motor device of the present invention is a motor device comprising a motor and a motor case covering the motor, and the motor case having a breathing hole. The feature is that a waterproof cover is attached to the hole.

Therefore, in the motor device of the present invention, even if water is splashed on the motor device, the breathing hole is provided with the waterproof cover, so that the water extremely penetrates into the motor case. This is an effect that it is hard to do and an accident such as a short circuit due to the intrusion of water into the motor case is hard to occur.

It should be noted that the specific shapes and structures shown in the above embodiments are merely examples for embodying the present invention, and the technical scope of the present invention is limited by these. Not interpreted.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a first embodiment of a motor device of the present invention.

FIG. 2 is a side view.

FIG. 3 is a front view showing a partially cutaway view.

FIG. 4 is a side view showing another example of the usage mode with a part cut away.

FIG. 5 is a side view showing a further example of a usage mode with a part cut away.

FIG. 6 is a side view showing a second embodiment of the motor device of the present invention.

7 is a sectional view taken along the line VII-VII of FIG.

FIG. 8 is an exploded perspective view showing an enlarged main part.

FIG. 9 is a vertical sectional view showing an example of a conventional motor device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 motor device 3 motor case 6 breathing hole 17 motor 18 waterproof cover 1A motor device 24 breathing hole 26 waterproof cover

Claims (1)

[Scope of utility model registration request] 1. A motor device comprising a motor and a motor case covering the motor, wherein the motor case has a breathing hole, wherein the breathing hole is provided with a waterproof cover. Motor device.