JP2002034200A - Motor holding construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor holding construction which can improve assembling property and can reduce the manufacturing cost. SOLUTION: A damper 13 is formed of a first column ring 25 to be coupled with the external circumference of a motor yoke 16, a second column ring 26 to be coupled with the internal circumference of a damper accommodating portion 19 of a motor holder 12, and a plurality of elastic coupling portions 27 which are coupled with the first and second column rings and are formed as elastically deformable in shape in the radial direction between the first and second column rings 25, 26. The flexible portions 27a, 27b forming the elastic coupling portions 27 are extended in the circumferential direction between the first and second column rings 25, 26, and are continuously bent zig-zag.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor, and more particularly to a motor holding structure for preventing noise caused by motor vibration.

[0002]

2. Description of the Related Art In a blower motor used in a vehicle, noise caused by vibration of the motor directly becomes a major factor of noise in a vehicle interior. For this reason, conventionally, a floating holding structure using a vibration-proof rubber has been adopted to reduce motor vibration and noise.

[0003] This type of motor holding structure has been proposed by the present applicant in Japanese Utility Model No. 2526711. In this technique, a motor is mounted and fixed to a motor holder via a vibration-proof rubber. According to this configuration, since the vibration generated by the motor is attenuated by the volume elastic deformation of the vibration isolating rubber, noise caused by the motor vibration can be reduced.

[0004]

However, since the coefficient of friction on the surface of the vibration isolating rubber is large, when the vibration isolating rubber is interposed between the motor yoke and the motor holder, the frictional force increases and the assembling work is not easy. . That is, there is a problem that the assemblability of the vibration isolating rubber is poor.

[0005] The material of the vibration isolating rubber used here is required to have a certain degree of heat resistance deterioration resistance and compression distortion resistance. However, since the higher the heat resistance and compression distortion resistance, the more expensive the rubber, the more expensive the vibration isolating rubber contributes to the cost of the motor. This is a problem in reducing the cost of the motor holding structure.

SUMMARY OF THE INVENTION An object of the present invention is to provide a motor holding structure capable of improving assemblability and reducing costs.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is directed to a first holder for mounting a motor, and a first holder interposed between the first holder and the motor. The gist of the present invention is that it comprises a first holder and a second holder having a shape elastic deformation portion formed so as to be capable of shape elastic deformation in the radial direction between the motor and the first holder.

According to a second aspect of the present invention, in the motor holding structure according to the first aspect, the second holder is made of resin, and the first holder is connected to an outer periphery of the motor; A second coupling portion coupled to the inner periphery of the first holder; and a plurality of shape elastically deformable portions formed between the first and second coupling portions so as to be elastically deformable in a radial direction. Is the gist.

According to a third aspect of the present invention, in the motor holding structure according to the second aspect, the shape elastic deformation portion includes:
The gist of the invention is that the first and second coupling portions are configured to include a flexible portion that extends in the circumferential direction and is bent continuously in a zigzag manner.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the motor holding structure described in the above, a first pressure contact portion that presses against the outer periphery of the motor is provided on an inner peripheral surface of the first coupling portion, and an outer peripheral surface of the second coupling portion is The gist of the present invention is that a second pressure contact portion that presses against the inner periphery of the first holder is provided.

According to a fifth aspect of the present invention, in the motor holding structure according to the first aspect, the second holder is made of resin or metal, is formed in a wavy shape in a circumferential direction, and is elastically deformable in a radial direction. A plurality of inner-diameter-side protruding ends protruding toward the shaft center of the second holder, and a plurality of inner-diameter-side protruding ends protruding toward the shaft center of the second holder. An outer diameter side protruding end, wherein each inner diameter side protruding end is pressed against the outer periphery of the motor, and each outer diameter side protruding end is pressed against the inner circumference of the first holder, so that the motor and the first holder And press-fit engagement between them.

According to a sixth aspect of the present invention, in the motor holding structure according to the fifth aspect, the outer diameter side protruding end is a first outer diameter side protruding pressure contacting the inner periphery of the first holder. An end and a second outer diameter side protruding end which is not pressed against the inner periphery of the first holder, wherein the first outer diameter side protruding end and the second outer diameter side protruding end are alternately arranged alternately. The gist of the present invention is that it is formed so as to be interposed.

(Operation) According to the first aspect of the present invention,
The motor holding structure includes a first holder for mounting the motor, and a shape elastic deformation interposed between the first holder and the motor and formed to be elastically deformable in the radial direction between the first holder and the motor. And a second holder having a portion. Therefore, since the vibration of the motor can be absorbed by the shape elastic deformation of the second holder, the second holder can be made of a non-volume deformable material. As a result, the assemblability of the second holder can be improved by making the second holder from a material (for example, resin, metal, or the like) having a smaller surface friction coefficient than that of the conventional vibration-proof rubber. Further, by using a non-volume deformable material (for example, resin, metal, or the like) capable of ensuring heat resistance deterioration resistance and compression distortion resistance, the cost of the second holder can be reduced, and the cost of the motor holding structure can be reduced.

According to the invention described in claim 2, according to claim 1,
In addition to the operation of the invention described in (1), the plurality of shape elastically deforming portions are shape elastically deformed in the radial direction between the first and second coupling portions, so that the vibration of the motor is reliably caused by the second holder. Absorbed. In addition, the second holder is made of resin and has a smaller surface friction coefficient than conventional vibration-proof rubber, so that the assemblability can be improved. Further, since the resin is inexpensive compared to rubber in terms of cost in order to secure heat resistance deterioration resistance and compression distortion resistance, the second resin is compared with the conventional vibration-proof rubber.
Can be made inexpensively. As a result, the cost of the motor holding structure can be reduced.

Further, since the shape elastic deformation portion is formed so as to be shape elastic deformable in the radial direction, the vibration in the radial direction of the motor is reliably absorbed. According to the third aspect of the present invention, in addition to the function of the second aspect, the shape elastically deforming portion extends in the circumferential direction between the first and second coupling portions and is continuous with a zigzag. The bending portion is formed by bending. Therefore, the shape elastic deformation portion can be formed long by effectively utilizing the space in the circumferential direction between the first and second coupling portions, so that the elastic deformation (bending) can be increased and the effect of absorbing the motor vibration can be reduced. Can be improved.

According to the invention described in claim 4, claim 2 is provided.
In addition to the effect of the invention described in the third aspect, a first pressure contact portion that presses against the outer periphery of the motor is provided on the inner peripheral surface of the first coupling portion, and the outer peripheral surface of the second coupling portion has A second pressure contact portion that presses against the inner periphery of the first holder is provided.

Accordingly, when the first coupling portion is press-fitted to the outer periphery of the motor and the second coupling portion is press-fitted to the inner periphery of the first holder, the first press-contact portion is engaged with the outer periphery of the motor. The second holder is pressed against the inner periphery of the first holder and the second holder is securely and easily assembled between the motor and the first holder.

According to the invention described in claim 5, according to claim 1,
In addition to the operation of the invention described in the above, the shape elastic deformation portion deforms shape elastically in the radial direction between the motor and the first holder, so that the vibration of the motor is reliably absorbed by the second holder. In addition, the second holder is made of resin or metal and has a smaller surface friction coefficient than conventional vibration-proof rubber, so that the assemblability can be improved. Further, since the resin is inexpensive compared to rubber in terms of cost in order to secure heat resistance deterioration resistance and compression distortion resistance, the second resin is compared with the conventional vibration-proof rubber.
Can be made inexpensively. At this time, since the second holder is formed with a simple configuration, it can be easily manufactured. As a result, the cost of the motor holding structure can be reduced.

Further, since the shape elastic deformation portion is formed so as to be shape elastic deformable in the radial direction, the vibration in the radial direction of the motor is reliably absorbed. According to the invention described in claim 6, in addition to the function of the invention described in claim 5, when the second holder is press-fitted to the inner periphery of the first holder, the second outer diameter side is formed. Since the protruding end does not press against the inner periphery of the first holder, the second outer diameter protruding end can freely elastically deform until it comes into contact with the inner periphery of the first holder. As a result, the shape elastically deformable portion of the second holder is easily deformed in the radial direction, and the effect of absorbing the vibration of the motor can be improved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment in which the present invention is embodied in a blower motor for a vehicle will be described below with reference to FIGS. FIG. 1 is a plan view showing a motor holding structure according to the present embodiment. FIG. 2 is a sectional view taken along the line AA in FIG. 1 showing the motor holding structure of the present embodiment.

As shown in FIG. 1 and FIG.
Is a motor holder 12 as a first holder for mounting the motor 11 to a mounting member (not shown) such as a vehicle body.
Are supported via a damper 13 as a second holder.

The motor 11 has a motor yoke 16 having an armature 14 and a magnet 15 surrounding the armature 14 fixed inside.
And an end frame 17 for closing one open end of the motor yoke 16 (lower open end shown in FIG. 2).

The motor holder 12 is press-formed from a thin metal plate, and includes a motor housing 18, a damper housing 19, and a flange 20 extending outward from the outer periphery of the damper housing 19. I have.

As shown in FIG. 2, the motor housing 18 is
It is formed in a dish shape so as to cover the end frame 17. At an upper end of the motor housing 18, a damper housing 19 for housing a damper 13 to be described later is formed.
The motor housing 18 and the end frame 17
Are connected and fixed by a plurality of (for example, three) bolts 22 so that the motor 11 is supported by the motor holder 12.

As shown in FIG. 1, a plurality of the flanges 20 are provided at equal angular intervals on the outer circumference (three in this embodiment).
Is formed to extend. Each mounting part 23
A through hole 24 is provided at the center. Although not shown, the motor holder 12 is fixed to a mounting member such as a vehicle body with a fixing member such as a bolt inserted through the through hole 24.

As shown in FIGS. 1 and 3, the damper 13 is formed of a resin and has a first cylindrical ring as a cylindrical first coupling portion having an inner diameter substantially equal to the outer diameter of the motor yoke 16. 25, and a second cylindrical member having an outer diameter substantially equal to the inner diameter of the inner peripheral surface 21 of the damper housing portion 19.
And a plurality of cylinder rings 26 provided at equal angular intervals between the first cylinder ring 25 and the second cylinder ring 26 and connecting the first and second cylinder rings 25, 26. (In this embodiment, three) elastic coupling portions 27 as elastic deformation portions. The second cylindrical ring 26 is formed internally of the first cylindrical ring 25 such that the axial center coincides with the axial center of the first cylindrical ring 25. In the present embodiment, as shown in FIG. 2, the second cylindrical ring 26 is formed at substantially the same height as the flange 20, and the first cylindrical ring 25 is connected to the second cylindrical ring 2.
6 is formed.

As shown in FIG. 3, a plurality of (three in this embodiment) first press contact portions 28 are formed on the inner peripheral surface of the first cylindrical ring 25 at equal angular intervals. ing.
A plurality (three in this embodiment) of second press-contact portions 29 are formed on the outer peripheral surface of the second cylindrical ring 26 at equal angular intervals. As shown in FIGS. 1 and 3, each second press contact portion 29 is a radial extension of the first cylindrical ring 25 (that is, the second cylindrical ring 26) on which the first press contact portion 28 is formed. E. That is,
The first pressure contact portion 28 and the second pressure contact portion 29 are formed by first and second pressure contact portions.
Are formed so as to be located on the same radial direction of the cylindrical rings 25 and 26.

As shown in FIGS. 1 and 3, each elastic connecting portion 27 has a flexural portion 27 formed in a circumferentially zigzag shape.
a and 27b, and connecting ends 27c and 27d for connecting the first and second cylindrical rings 25 and 26, respectively. The flexures 27a and 27b are formed so as to be elastically deformable (flexible) in the radial direction of the damper 13. The connection end portions 27c and 27d are connected to the first pressure contact portions 28.
And a straight line passing through the second pressure contact portion 29 (that is, the first and second
(On the same radial direction as the cylindrical rings 25 and 26). The first and second cylindrical rings 25 and 26 are connected to the first and second cylindrical rings 25 and 26, respectively.

Then, as shown in FIG. 1 and FIG.
The cylindrical ring 25 of which inner peripheral surface has the motor yoke 1
The second cylindrical ring 26 is pressed into and engaged with the outer periphery of the motor yoke 16 so as to press against the outer peripheral surface of the damper housing 6 so that the outer peripheral surface thereof is pressed against the inner peripheral surface 21 of the damper housing 19. 19 is press-fitted. That is, the damper 13 is interposed between the motor 11 and the motor holder 12 so that the motor 11 is provided inside and the motor holder 12 surrounds the motor 11 from outside. In other words,
The motor 11 is floatingly supported by a motor holder 12 via a damper 13 in the radial direction. At this time, as shown in FIG. 2, the upper surface of the second cylindrical ring 26 is positioned substantially on the same plane as the upper surface of the flange 20.

Furthermore, in the present embodiment, as shown in FIG.
Of the first and second cylindrical rings 25 and 26 passing through the first and second press-contact portions 28 and 29, respectively. I have.

When the motor 11 is energized, the armature 14 rotates around the rotation shaft 14a. At this time, a repulsive / attractive force consisting of a magnetic force is generated between the armature 14 and the magnet fixed to the inner periphery of the motor yoke 16. The motor yoke 16 vibrates mainly in the radial direction due to the repulsive and attractive forces. Then, the vibration of the motor yoke 16 is transmitted to the first cylindrical ring 25 and is absorbed by the elastic connecting portion 27. That is, since the vibration of the motor yoke 16 is almost absorbed by the elastic connecting portion 27, the vibration is not transmitted to the mounting portion 23 of the motor holder 12 through the second cylindrical ring 26 and eventually to the mounting member such as the vehicle body.

Next, features of the motor holding structure of the present embodiment will be described. (1) In this embodiment, the first cylindrical ring 2 that couples the damper 13 to the outer periphery of the motor yoke 16 of the motor 11
5, a second cylindrical ring 26 coupled to the inner periphery of the damper housing 19 of the motor holder 12, and the first and second cylindrical rings 25, 26 connected to the first and second cylindrical rings.
And a plurality of elastic connecting portions 27 formed so as to be elastically deformable in the radial direction.

Therefore, the plurality of elastic connecting portions 27 are elastically deformed in the radial direction between the first and second cylindrical rings 25 and 26, so that the vibration of the motor 11 is reliably absorbed by the damper 13. You. Moreover, the damper 13
Is made of resin and has a smaller surface friction coefficient than conventional vibration-proof rubber, so that the assembling property can be improved. In addition, since resin is less expensive than rubber in terms of cost in order to secure heat resistance deterioration resistance and compression distortion resistance, the damper 13 can be made cheaper than conventional vibration-proof rubber. As a result, the cost of the holding structure for the motor 11 can be reduced.

Further, the elastic connecting portion 27 is
a, 27b, elastic deformation (bending) in the radial direction
Since it is formed so as to be possible, the radial vibration of the motor 11 is reliably absorbed.

(2) In this embodiment, the elastic connecting portion 27
Is constituted by bending portions 27a and 27b which extend in the circumferential direction between the first and second cylindrical rings 25 and 26 and are bent continuously in a zigzag manner.

Accordingly, since the flexures 27a and 27b can be formed long by effectively utilizing the space in the circumferential direction between the first and second cylindrical rings 25 and 26, the shape elastic deformation (flexure) can be increased. Thus, the effect of absorbing the vibration of the motor 11 can be improved.

(3) In the present embodiment, the first and second cylindrical rings 25 and 26 constituting the damper 13 are formed in a cylindrical shape, and the inner peripheral surface of the first cylindrical ring 25 is contacted with the first press ring. A second press contact portion 29 is provided on the outer peripheral surface of the second cylindrical ring 26.

Therefore, the first cylindrical ring 25 is press-fitted and engaged with the outer periphery of the motor yoke 16 and the second cylindrical ring 26
Is pressed into the damper accommodating portion 19, the first press contact portion 28 presses against the inner peripheral surface of the first cylindrical ring 25, and
Is pressed against the outer peripheral surface of the second cylindrical ring 26, whereby the damper 13 is securely and easily assembled between the motor 11 and the motor holder 12.

(Second Embodiment) Next, a second embodiment in which the present invention is embodied in a blower motor for a vehicle will be described with reference to FIGS. FIG. 4 is a plan view showing the motor holding structure of the present embodiment. FIG. 5 is a sectional view taken along line BB in FIG. 4 showing the motor holding structure of the present embodiment. Note that the second embodiment differs from the first embodiment only in the structure of the damper as the second holder.
For convenience of explanation, detailed description of similar parts will be omitted, and only different parts will be described in detail.

The damper 33 as the second holder of the present embodiment is made of resin, and as shown in FIGS. 4 and 6,
A ring portion 34 is formed as a shape elastically deforming portion that is formed into a wavy shape in the circumferential direction. The ring part 34 includes a damper 33
Are formed so as to be elastically deformable in the radial direction.
Further, the damper 33 is formed at substantially the same height as the damper accommodating portion 19.

The wavy ring portion 34 has a plurality of inner diameter side protruding ends 35 protruding toward the center of the shaft of the damper 33, a plurality of first outer diameter side protruding ends 36 protruding toward the center of the opposite axis of the damper 33, and A second outer diameter side protruding end 37 is provided. In the present embodiment, the twelve inner diameter side protruding ends 35 are
The first outer diameter side protruding ends 36 and the six second outer diameter side protruding ends 3 are formed so as to protrude toward the shaft center side at equal angular intervals.
Numerals 7 protrude toward the center of the anti-axis of the damper 33 at equal angular intervals. Moreover, the first outer diameter side protruding ends 36 and the second outer diameter side protruding ends 37 are formed so as to alternately intervene every other one.

Each inner diameter side protruding end 35 is formed so as to be located on the same circumference, and the diameter D 1 of the circumference passing through each inner diameter side protruding end 35 is set substantially equal to the outer diameter of the motor yoke 16. I have.

Each first outer diameter side projecting end 36 is formed so as to be located on the same circumference, and each first outer diameter side projecting end 36 is formed.
Is set to be approximately equal to the inner diameter of the inner peripheral surface 21 of the damper housing 19. In addition, each second
The outer diameter side protruding end 37 has a circumference diameter passing through each second outer diameter side protruding end 37 set to be slightly smaller than a diameter D2 of a circumference passing through each first outer diameter side protruding end 36. I have.

Then, as shown in FIGS. 4 and 6, each inner diameter side protruding end 35 comes into pressure contact with the outer peripheral surface of the motor yoke 16, and
The damper 33 is press-fitted into the damper accommodating portion 19 such that each first outer diameter side protruding end 36 is in pressure contact with the inner peripheral surface 21 of the damper accommodating portion 19. That is, the damper 33
Is interposed between the motor 11 and the motor holder 12 so that the motor 11 is internal and the motor holder 12 surrounds the motor 11 from outside. In other words, the motor 1
1 is floating supported by the motor holder 12 via a damper 33 in the radial direction.

When the motor 11 is energized, the armature 14 rotates about the rotation shaft 14a. At this time, a repulsive / attractive force consisting of a magnetic force is generated between the armature 14 and the magnet fixed to the inner periphery of the motor yoke 16. The motor yoke 16 vibrates mainly in the radial direction due to the repulsive and attractive forces. The vibration of the motor yoke 16 is absorbed by the shape elastic deformation of the wavy ring portion 34 in the radial direction.

Next, features of the motor holding structure of the present embodiment will be described. (1) In the present embodiment, the damper 33 includes a ring portion 34 made of resin and formed into a wavy shape in the circumferential direction. The ring portion 34 is formed to be elastically deformable in the radial direction of the damper 33. Further, the wavy ring portion 34 includes a plurality of inner-diameter-side protruding ends 35 protruding toward the axis center of the damper 33, a plurality of first outer-diameter-side protruding ends 36 protruding toward the anti-axis center of the damper 33, and Two outer diameter side protruding ends 37 are provided.

Therefore, the vibration of the motor 11 is reliably absorbed by the damper 33. In addition, since the damper 33 is made of resin and has a smaller friction coefficient on the surface as compared with the conventional anti-vibration rubber, the assembling property can be improved. Further, since the resin is less expensive than rubber in terms of cost in order to secure the heat resistance deterioration resistance and the compression distortion resistance, the damper 33 can be manufactured at a lower cost than the conventional anti-vibration rubber. Further, since the damper 33 is formed with a simple configuration, it can be easily manufactured. As a result, the cost of the motor holding structure can be reduced.

Further, since the ring portion 34 is formed so as to be elastically deformable (bent) in the radial direction, the radial vibration of the motor 11 is reliably absorbed. (2) In the present embodiment, each second outer diameter side protruding end 37 is
The first outer diameter side is formed so as to be located on the same circumference, and the diameter of the circumference passing through each second outer diameter side protruding end 37 is pressed against the inner peripheral surface 21 of the damper accommodating portion 19. The diameter is set slightly smaller than the diameter D2 of the circumference passing through the protruding end 36.

Therefore, the damper 33 is not
9, the second outer diameter projecting end 37
Is separated from the inner peripheral surface 21 of the damper accommodating portion 19, so that each second outer diameter side protruding end 37 is connected to the damper accommodating portion 1.
9 can be freely elastically deformed until it comes into contact with the inner peripheral surface 21 of the substrate 9.
As a result, the ring portion 34 of the damper 33 is easily deformed elastically in the radial direction, and the effect of absorbing the vibration of the motor 11 can be improved.

The above embodiment may be modified as follows. In the first embodiment, the number of the elastic connection portions 27 is three, but the number of the elastic connection portions 27 may be four or more. In this case, effects similar to the effects described in the features (1) to (3) of the first embodiment can be obtained.

In the first embodiment, the mounting portion 23
Although it was formed and implemented, four or more attachment parts 23 may be formed and implemented. In this case, effects similar to the effects described in the features (1) to (3) of the first embodiment can be obtained.

In the first embodiment, the elastic connecting portion 27
Was implemented with two flexures 27a, 27b,
The elastic connecting portion 27 may be provided with three or more bending portions. In this case, features (1) to (1) of the first embodiment
In addition to the effect described in (3), the effect of absorbing the vibration of the motor 11 can be further improved.

In the second embodiment, each second outer diameter side protruding end 37 is formed so as to be located on the same circumference, and the second outer diameter side protruding end 37 is formed on the circumference passing through each second outer diameter side protruding end 37. Although the diameter was set to be slightly smaller than the diameter D2 of the circumference passing through each first outer diameter projecting end 36 for pressing against the inner peripheral surface 21 of the damper accommodating portion 19, each second outer diameter side was used. The projecting end 37 is
May be formed so as to be located on the same circumference as the outer diameter side protruding end 36. In this case, in addition to the effect described in the feature (1) of the second embodiment, since the wave of the ring portion 34 is uniform, the damper 33 can be manufactured more easily.

In the second embodiment, the ring portion 34 is
The implementation was performed with two wave shapes, but the ring portion 34
More than 11 or less than 11 wave shapes may be implemented.
In this case, effects similar to the effects described in the features (1) and (2) of the second embodiment can be obtained.

In the second embodiment, the damper 33 is
Although the damper 33 is formed from resin, the damper 33 may be formed from metal. In this case, effects similar to the effects described in the features (1) and (2) of the second embodiment can be obtained.

In the second embodiment, the damper 33 is
Although the damper accommodating portion 19 is formed to have substantially the same height as the damper accommodating portion 19, the damper 33 may be formed to be lower or higher than the damper accommodating portion 19. In this case, effects similar to the effects described in the features (1) and (2) of the second embodiment can be obtained.

The motor holder 12 may have a two-part structure. That is, although not shown, the motor holder 12
Has two semicircular portions, and both semicircular portions are
(Or 33). In this case, effects similar to the effects described in the features of the first and second embodiments can be obtained.

In the first and second embodiments, the present invention is embodied in a vehicle blower motor, but may be embodied in a motor other than a blower motor as a vehicle actuator. In this case, effects similar to the effects described in the features of the first and second embodiments can be obtained.

[0059]

As described in detail above, according to the first aspect of the present invention, the assemblability can be improved and the cost can be reduced.

According to the second and fifth aspects of the invention, in addition to the effect of the first aspect, the radial vibration of the motor is reliably absorbed. According to the third aspect of the invention, in addition to the effect of the second aspect, the effect of absorbing the vibration of the motor can be improved.

According to the invention described in claim 4, according to claim 2
In addition to the effects of the inventions described in (3) and (3), the second holder is securely and easily assembled between the motor and the first holder. According to the invention described in claim 6, in addition to the effect of the invention described in claim 5, it is possible to improve the effect of absorbing the vibration of the motor.

[Brief description of the drawings]

FIG. 1 is a plan view showing a motor holding structure according to a first embodiment.

FIG. 2 is a diagram showing a motor holding structure according to the first embodiment;
FIG.

FIG. 3 is a plan view showing a damper according to the first embodiment.

FIG. 4 is a plan view showing a motor holding structure according to a second embodiment.

FIG. 5 shows a motor holding structure according to a second embodiment;
BB sectional drawing in FIG.

FIG. 6 is a plan view showing a damper according to a second embodiment.

[Explanation of symbols]

11 motor, 12 motor holder as first holder, 13 33 damper as second holder, 25
... first cylindrical ring as first joint, 26 ... second
A second cylindrical ring as a connecting portion, 27... An elastic connecting portion as a shape elastically deforming portion, 27a, 27b.
Reference numeral 8: first press-contact portion; 29, second press-contact portion; 34, a ring portion as a shape elastic deformation portion;
... first outer diameter side protruding end, 37 ... second outer diameter side protruding end.

Claims (6)

[Claims] 1. A first device for mounting a motor (11).
And the first holder (12) and the motor (11) interposed between the first holder (12) and the motor (11) so as to be capable of being elastically deformed in the radial direction between the first holder (12) and the motor (11). A second holder (13, 33) having a shape-elastic deformation portion (27, 34); 2. The motor holding structure according to claim 1, wherein the second holder (13) is made of resin and has a first coupling portion (25) coupled to an outer periphery of the motor (11). ,
A second coupling part (26) coupled to an inner periphery of the first holder (12); and the first and second coupling parts (25, 26).
And a plurality of shape elastically deformable portions (27) formed so as to be elastically deformable in the radial direction between them. 3. The motor holding structure according to claim 2, wherein the shape-elastic deformation portion (27) extends circumferentially between the first and second coupling portions (25, 26) and has a zigzag shape. A motor holding structure comprising a bent portion (27a, 27b) bent continuously to the motor. 4. The motor holding structure according to claim 2, wherein an inner peripheral surface of the first coupling portion (25) is in contact with an outer peripheral surface of the motor (11). (28) is provided, and a second press-contact portion (2) press-contacts the outer peripheral surface of the second coupling portion (26) against the inner periphery of the first holder (12).
9) A motor holding structure, wherein the structure is provided. 5. The motor holding structure according to claim 1, wherein the second holder (33) is made of resin or metal,
The shape elastically deformable portion (34) is formed in a wavy shape in the circumferential direction and is elastically deformable in the radial direction. The shape elastically deformable portion (34) projects to the axial center side of the second holder (33). And a plurality of outer diameter projecting ends (36, 37) projecting toward the center of the opposite axis of the second holder (33), and each inner diameter projecting end (35) is provided. The motor (11) and the first holder are pressed against the outer periphery of the motor (11), and each outer diameter side protruding end (36, 37) is pressed against the inner periphery of the first holder (12). (12) The motor holding structure, wherein the motor is press-fitted and engaged. 6. The motor holding structure according to claim 5, wherein the outer-diameter-side protruding ends (36, 37) are pressed against an inner circumference of the first holder (12). Protruding end (36)
And a second outer diameter side protruding end (37) that is not pressed against the inner periphery of the first holder (12). The first outer diameter side protruding end (36) and the second outer diameter side protruding end (37) The motor holding structure characterized in that the motor holding structure is formed so as to alternately intervene every other one.