JP2594753Y2 - motor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for a motor used in a place where waterproofness is required, for example, an engine room of an automobile.

[0002]

2. Description of the Related Art With the recent development of car electronics, motors requiring waterproofness have been increasingly used.

Hereinafter, the above-mentioned conventional waterproof structure of a motor will be described with reference to the drawings. In FIG. 3, reference numeral 1 denotes a case, and 2 denotes a cover, which encloses a motor unit (not shown). A grommet 3 has a lead hole 3a for supplying power to the motor, and a lead wire 4 passes through the grommet and is sandwiched between the case 1 and the cover 2.

[0004]

However, the above structure has a problem in that the grommet 3 is caught by the mating surface 5 of the case 1 and the cover 2 that sandwiches the grommet 3 as shown in FIG. Was. Also, both side surfaces of the grommet 3 into which the lead wire 4 is inserted are:
The center line of the lead hole promoted the bulging grommet 3 to bite, and also made it difficult to insert the grommet. Further, it is not unusual for the center line of the lead hole to coincide with the mating surface 5 due to the structure and external dimensions.

The present invention has been made in view of the above problems, and has as its object to provide a waterproof structure for a motor in which grommet insertion is improved and waterproofness is ensured.

[0006]

SUMMARY OF THE INVENTION The present invention to achieve the above object, a completely encasing structure of the motor unit with case and cover, glow through the lead wire to the lead hole
Met and inner surface of both sides of grommet insertion groove of the cover
Part is extended, and a substantially triangular
The convex part has a vertex whose center is the center line of the lead hole of the grommet.
The case is provided so that it does not overlap, and the case is
A concave portion corresponding to the convex portion of the bar is provided to sandwich the grommet.

[0007]

According to the present invention, the grommet can be easily inserted and the waterproofness can be reliably achieved by the above-described structure.

[0008]

1 and 2 show an embodiment of the present invention.
This will be described with reference to FIG.

FIG. 1 is a partial perspective view of an embodiment of the present invention. The grommet 3 through which the lead wire 4 has passed is inserted into the case 1 and is closely attached to the cover 2.

FIG. 2 is a front view after contact. As described above, according to the waterproof structure of the motor of the present invention, when the grommet 3 is inserted into the case 1, the case 1 is provided with a substantially triangular recess so that the grommet 3 can be easily inserted.
Further, when the cover 2 is brought into close contact with the case 1, the bulge caused by the lead wire 4 of the grommet 3 at the substantially triangular convex portion of the cover 2 is prevented from overlapping with the center line thereof, so that the grommet can be suppressed. 3 can be adhered without biting the side.

[0011]

As is apparent from the above embodiment, according to the present invention, the substantially triangular uneven portions of the case and the cover are formed, and the mating surface of the case and the cover does not overlap the center line of the lead hole. With this setting, the grommet can be easily inserted and the grommet case,
There is no biting by the cover mating surface, and the waterproofness can be ensured.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a waterproof structure of a motor according to an embodiment of the present invention.

FIG. 2 is a partial front view showing the waterproof structure of the motor according to the embodiment of the present invention;

FIG. 3 is a partial perspective view showing a waterproof structure of a conventional motor.

FIG. 4 is a partial front view showing a waterproof structure of a conventional motor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Cover 3 Grommet 3a Lead hole 4 Lead wire 5 Case and cover mating surface

Continued on the front page (56) References Japanese Utility Model Showa 50-86205 (JP, U) Japanese Utility Model Showa 60-166253 (JP, U) Japanese Utility Model Showa 62-119147 (JP, U) Japanese Utility Model Showa 62-154764 (JP, U.S.A.) , U) Japanese Utility Model Showa 62-17075 (JP, U) Japanese Utility Model Showa 62-117467 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H02K 5/00-5/26 H01R 13/40-13/533 H01R 13/56-13/72

Claims (1)

(57) [Scope of request for utility model registration] 1. A structure in which a motor portion is completely wrapped by a case and a cover, and wherein a lead wire is passed through a lead hole.
Met and inner surface of both sides of grommet insertion groove of the cover
Part is extended, and a substantially triangular
The convex part has a vertex whose center is the center line of the lead hole of the grommet.
The motor is provided so as not to overlap with the upper portion, and the case is provided with a concave portion corresponding to the convex portion of the cover, and the grommet is sandwiched therebetween .