JP2546151Y2 - Motor actuator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor actuator used for driving a door or the like of a vehicle air conditioner.

[0002]

2. Description of the Related Art Conventionally, in a motor actuator of this type, a motor is directly screwed to a housing. However, the screwdriver interferes with other parts or a side wall of the housing, so that it is difficult to perform an assembling operation.

[0003] Therefore, as shown in FIG. 4, for example,
A motor 91 is attached to a plate-like bracket 93 with two screws 92, and the bracket 93 is inserted into a groove 94 formed in a housing of the motor actuator (Japanese Utility Model Application Laid-Open No. 62-198851). .

[0004]

However, the conventional motor actuator as described above requires a bracket and two screws to fix the motor in the housing, resulting in high component and assembly costs. There is.

[0005] Further, when the bracket is attached to the motor, the motor must be placed vertically, and then when it is installed in the housing, the attitude of the motor must be changed to be placed horizontally. Therefore, it is extremely difficult to perform automatic assembly. Thus, there is a disadvantage that the assembly cost is increased.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a motor actuator in which the cost of parts for assembling the motor in the housing and the assembly cost are low and the automatic assembly can be easily performed.

[0007]

In order to achieve the above object, a motor actuator according to the present invention comprises a motor, a motor and an output shaft which are decelerated by rotating the motor in at least two upper and lower housings. And an elastic deformation member that elastically deforms by pressing the motor on at least one of the upper and lower housings, between the upper and lower housings. The motor is pressed against the elastically deformable member by clamping the motor, and is fixed in the two housings.

[0008]

When the motor is sandwiched between the upper and lower housings, the motor is pressed against the elastically deformable member, and the elastically deformable member is elastically deformed. Then, the motor is elastically fixed by the elastic force without play between the two housings.

[0009]

An embodiment will be described with reference to the drawings. FIG. 2 schematically shows the overall structure of the motor actuator, in which the motor 3 and the rotation of the motor 3 are transmitted at reduced speed into plastic molded housings 1 and 2 which are divided into upper and lower parts. The reduction gear group 4 and the like are housed.

The upper and lower housings 1 and 2 are fixed by screws 9 tightened from the upper surface side.
Instead of the above, the hooks are formed integrally with the housings 1 and 2,
The upper and lower housings 1 and 2 may be fixed by engagement of the hooks.

The shaft 5 of the final gear 4a of the reduction gear group 4 is an output shaft and projects outside the housings 1 and 2.
Further, a contact piece or the like for controlling the stop position of the output shaft 5 is provided on the back surface of the final gear 4a and the printed circuit board surface opposed thereto.

FIGS. 1 and 3 show a first embodiment of the mounting portion of the motor 3. FIG. Where the lower housing 2
A concave portion 11 is formed along the peripheral surface of the columnar motor 3, and a rectangular cushion material 13 made of elastic rubber or the like protrudes from the concave portion 11 in the concave portion 11. It is fitted so that.

Therefore, the motor 3 is placed on the cushion member 13 in a horizontal state, that is, in a state where the rotation axis of the motor 3 is parallel to the upper and lower housings 1 and 2, and the upper and lower housings 1 and 2 are fixed by screws 9 or hooks. Then, the motor 3 is sandwiched between the upper and lower housings 1 and 2, and the clamping force presses the motor 3 against the cushion 13, thereby compressing (elastically deforming) the cushion 13.

As a result, the motor 3 is sandwiched between the cushion member 13 and the upper housing 1 while receiving the elastic force of the cushion member 13, and is fixed without rattling. Note that the cushion material 13 may be provided on the upper housing 1 side, or may be provided on the upper and lower housings 1 and 2.

[0015]

[0016]

[0017]

[0018]

[0019]

According to the motor actuator of the present invention, the motor is fixed in the housing without rattling by simply clamping the motor between the upper and lower housings without using screws or the like, so that component costs and assembly are reduced. Since there is no cost and there is no need to change the attitude of the motor during assembly, there are excellent effects such as easy automatic assembly.

[Brief description of the drawings]

FIG. 1 is a partial sectional view of a first embodiment.

FIG. 2 is an overall schematic view of a motor actuator according to the embodiment.

FIG. 3 is an exploded partial perspective view of the first embodiment.

FIG. 4 is an exploded partial perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Housing 3 Motor 4 Reduction gear group (reduction mechanism) 5 Output shaft 13 Cushion material (elastic deformation member) 21 Rib (elastic deformation member)

Claims (1)

(57) [Scope of request for utility model registration] 1. A motor actuator comprising a housing divided into at least two upper and lower parts, a motor having a cylindrical outer surface and a reduction mechanism for reducing the rotation of the motor and transmitting the rotation to an output shaft. The inner surface of at least one of the upper and lower two housings has a shape conforming to the outer surface shape of the motor.
A concave is formed and the shape in the natural state is flat elasticity.
Between the motor and the recess
By clamped the motor between the two upper and lower housings in the state, the motor actuator, characterized in that the motor is fixed within the two housings.