JPH0534205Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a fixing device for a motor in a motor actuator used to drive doors and other parts of a vehicle air conditioner.

[Prior Art] Conventionally, in this type of motor actuator, the motor was screwed directly to the housing, but the screwdriver interfered with other parts and the side wall of the housing, making assembly difficult. As shown in FIG. 5, an improved motor is known in which a support plate 52 is fixed to a motor 51 and the support plate 52 is fixed to a housing with screws 53.

[Problems to be solved by the invention] In all of the conventional motor actuators mentioned above, the motor was fixed to the housing with screws, so the screws had to be turned during assembly, making the work complicated. Moreover, while the other parts of the motor actuator are assembled from above to the bottom of the housing, only the motor must be installed by screwdriving from the side to the bottom of the housing. This has been a major obstacle to automating assembly.

This invention eliminates such conventional drawbacks and
It is an object of the present invention to provide a motor fixing device for a motor actuator that is easy to assemble and is suitable for automatic assembly.

[Means for Solving the Problems] In order to solve the above-mentioned problems, a motor fixing device in a motor actuator according to the present invention has a bottom housing formed on a bottom housing that covers the bottom surface of the motor actuator. a side locking means, a lid-side locking means formed on a lid-side housing that covers the upper surface of the motor actuator; It is characterized in that it comprises an engaging piece that engages with the locking means, and that each of the locking means and the engaging piece engage with each other in a state where they are elastically pressed together.

[Operation] By engaging the engaging piece attached to the motor with the locking means formed on both housings from a direction perpendicular to both the housing surfaces on the bottom side and the lid side, the engaging piece and each locking means are elastically pressed together and engaged to fix the motor within the housing.

[Embodiment] FIGS. 1 and 2 show a first embodiment of the present invention, in which 1 is a bottom housing forming the outer wall of the lower half of the motor actuator, and 2 is a bottom housing that forms the outer wall of the lower half of the motor actuator. This is a lid-side housing that forms the outer wall of the upper half of the eater, and these housings 1 and 2 are made of synthetic resin. Above bottom housing 1
A pair of protrusions 3 are protruded from the bottom surface, and a hole 13 serving as a locking means is bored in each of the protrusions 3. A protrusion 3a is provided on the inner edge of each hole 13 and extends vertically toward the inside of the hole 13. Also,
Although not shown in FIG. 1, a convex portion 4 is provided on the upper surface of the lid-side housing 2 to protrude downward, and a hole 14 is bored in the convex portion 4.

5 is a motor serving as a drive source for the motor actuator, 6 is its output shaft, and 7 is a worm gear attached to the output shaft 6. A hole 13 in the bottom housing 1 is provided on the output shaft side side surface of the motor 5.
An engagement piece 8 made of, for example, a flat metal plate is inserted into the hole 13 and engaged with the hole 13, and is fixed with a screw 10. That is, a pair of legs 9 are formed at the lower part of the engagement piece 8 and are large enough to be inserted into each of the holes 13, and these legs 9 are inserted into each of the holes 13 upwardly (i.e., in the housing). When inserted from the direction perpendicular to the bottom surface, the protrusion 3a is crushed and elastically deformed, and the foot portion 9 is elastically pressed and fixed by the protrusion 3a. Similarly, an engagement piece 8 is also attached to the hole 14 of the lid side housing 2.
The upper end of the holder is adapted to be inserted and engaged. Note that there is no problem even if the above-mentioned projection 3a is accompanied by retrograde deformation when elastically deformed.

According to the device of this embodiment configured in this way,
The engaging piece 8 is fixed to the motor 5 in advance with a screw 10, and on the motor actuator assembly line, the engaging piece 8 is inserted into the hole 13 of the bottom housing 1 from above.
By simply inserting the motor 5, the motor 5 is fixed to the bottom housing 1 without play, and in the last step of assembly, by covering the lid housing from above, the lid housing engages with the upper end of the engaging piece 8, and the motor is activated. The motor 5 is completely fixed inside the yuator.

3 and 4 show a second embodiment of the present invention, in which a pair of pillars 23 are erected on the bottom surface of the bottom housing 21 as locking means, and similarly the lid housing 22 A pair of pillars 24 are erected downward on the upper surface of.

Reference numeral 28 denotes an engagement piece made of a plate spring material that is fixed to the side surface of the output shaft of the motor 5 with a screw 10, and this engagement piece 28 has the columns 23 and 24 between it and the side surface of the motor 5. They are attached at intervals that allow for insertion, and their four corners are bent to narrow the distance from the side surfaces of the motor 5 to form clamping parts 29 that pinch and clamp the columns 23 and 24. There is.

Therefore, according to the configuration of the second embodiment, from the direction perpendicular to the bottom surface of the bottom housing 21,
A column 23 is provided between the motor 5 and the lower half of the engagement piece 28.
By inserting and engaging the
The column 23 is elastically pressed against the side surface of the motor 5 by the clamping portion 29 and is fixed without play. Then, in the final step of assembly, by covering the lid-side housing 22 from above, the column 24 engages with the upper half of the engagement piece 28 in the same way as the bottom side, and the motor 5 is completely fixed. . In this way, in the second embodiment, since the column (locking means) is sandwiched between the side surface of the motor 5 and the engaging piece 28, the engaging piece 28
There is no need to protrude from the side of the motor 5,
Therefore, there is also the effect that the motor can be fixed in a small space.

[Effects of the invention] According to the motor fixing device in the motor actuator of the present invention, the motor can be fixed simply by engaging the engaging pieces attached to the motor from the direction perpendicular to both housing surfaces. Therefore, assembly work is easy and automatic assembly can be easily performed. Moreover, since the locking means for fixing the locking member and the engaging piece are elastically pressed together and engaged, there is no play or the like, and furthermore, the engaging piece is fixed to the housing on both the upper and lower sides. ,
The motor does not tilt or shift its position, the assembly work is simple, automatic assembly can be easily performed, and the motor operates smoothly.

[Brief description of the drawings]

Fig. 1 is a perspective view of the first embodiment of the present invention;
3 is a perspective view of the second embodiment of the present invention, FIG. 4 is a partial sectional view of the embodiment, and FIG. 5 is a perspective view of a conventional motor fixing device. It is. 1, 21...Bottom side housing, 2, 22...Lid side housing, 3a...Protrusion, 5...Motor,
8, 28... Engaging piece, 13, 14... Hole (locking means), 23, 24... Pillar (locking means), 29...
Clamping part.

Claims (1)

[Claims for Utility Model Registration] (1) A bottom locking means formed on a bottom housing that covers the bottom surface of the motor actuator, and a lid side housing that covers the top surface of the motor actuator. a lid-side locking means, and an engaging piece that is attached to the motor and engages the locking means from a direction perpendicular to the housing surface, and each of the locking means and the engaging piece 1. A motor fixing device for a motor actuator, characterized in that the two are elastically pressed together and engaged with each other. (2) The locking means is a hole formed in the housing into which the engaging piece is inserted, and a protrusion that elastically presses the engaging piece is protruded from the inner edge of the hole. A motor fixing device in a motor actuator according to claim 1. (3) The locking means is a column provided upright in the housing, and the engaging piece is a plate spring material attached to the motor, and the column is caused by the elastic force of the plate spring material. A motor fixing device in a motor actuator according to claim 1, which is fixed by being pressed.