CN111384809A

CN111384809A - Rotating device

Info

Publication number: CN111384809A
Application number: CN201911358539.3A
Authority: CN
Inventors: 松野武; 北川智之; 加藤柊史
Original assignee: MinebeaMitsumi Inc
Current assignee: MinebeaMitsumi Inc
Priority date: 2018-12-26
Filing date: 2019-12-25
Publication date: 2020-07-07
Also published as: DE102019135163A1; JP2023068103A; JP7250510B2; JP2020108234A

Abstract

The invention provides a rotating device which does not need space and has a simple structure and a motor is firmly installed on a shell. The rotating device is provided with: a holder (2) having a pair of pieces (21, 21) and a main body (22); a motor (3) sandwiched between a pair of sheets (21, 21); and a housing (4) that houses the motor (3) sandwiched between the pair of pieces (21, 21), wherein the housing (4) is provided with a pressing portion (43), and the pair of pieces (21, 21) sandwiching the motor (3) are pressed toward the motor (3) by the pressing portion (43).

Description

Rotating device

Technical Field

The present invention relates to a rotary machine which is provided with a motor and supplies a rotational driving force to various machines.

Background

Conventionally, various motors have been used to supply rotational driving force to various devices. The motor is an electrical component and therefore moisture and dust are to be avoided. However, in an electric apparatus of an automobile used outdoors, it is sometimes difficult to avoid moisture and dust due to its use environment, and in such a use environment, the electric apparatus is used in a state where the motor is housed in a closed container.

The motor is required to be firmly fixed to the housing because it generates a driving force. However, in the sealed container, since the mounting through-hole cannot be provided in the housing, the mounting becomes complicated or a space for mounting is required. For example, if a band-shaped pressing member such as a metal is wound around a motor and the end portion thereof is fastened, a space for the fastening is required, and in addition, the work becomes complicated, resulting in an increase in cost.

Further, if a flange is provided in advance on the motor and fastened, a space for fastening is still required, and simplification of the work is not sufficient. Thus, if the motor is firmly attached to the housing, not only is it difficult to miniaturize the hermetic container, but also special processing is required or the number of parts for attachment is increased, which leads to cumbersome assembly and increased cost.

(Prior art document)

(patent document)

Patent document 1: JP 2014-147284 publication

Disclosure of Invention

(problems to be solved by the invention)

The present invention has been made in view of the above circumstances, and an object thereof is to provide a motor that does not require a space, has a simple structure, and is firmly attached to a housing.

[ means for solving the problems ]

The above problems are solved by the following invention. That is, the rotating apparatus of the present invention includes: a holder having a pair of pieces and a main body; a motor sandwiched by the pair of sheets; and a housing that accommodates the motor sandwiched by the pair of pieces, wherein the housing is provided with a pressing portion that presses the pair of pieces sandwiching the motor toward the motor side.

Preferably, the pair of pieces are pressed in a direction to approach each other by the pressing portion.

Preferably, the pair of pieces sandwich the motor from an outer peripheral surface of the motor toward an inside.

In the above-described motor, the pair of segments preferably have an intermediate contact portion that contacts the motor at a position where the width of the motor is the maximum width and an end side contact portion that contacts the motor at a position different from the position of the maximum width in the longitudinal direction of the pair of segments, and in this case, the end side contact portion preferably serves as a protruding portion that protrudes toward the outer peripheral surface of the motor in a direction from one of the segments toward the other of the segments in the pair of segments.

On the other hand, in the rotary machine according to the present invention, it is preferable that the holder is provided with a claw for holding an edge of the wiring board.

In this case, it is preferable that a notch is formed in an outer edge of the wiring substrate, and the notch is held by the claw.

In this case, it is preferable that the housing includes the housing and a cover covering an opening of the housing, and the cover is provided with a projection for applying a force to the claw in a direction approaching the edge.

Specifically, the edge of the wiring substrate may have a 1 st portion and a 2 nd portion which are opposed to each other, the claw may have a pair of bifurcated pieces, the pair of pieces of the claw may contact the 1 st portion and the 2 nd portion, respectively, and the protruding portion of the cover may be disposed between the pair of pieces of the claw.

Drawings

Fig. 1 is a perspective view of a rotary machine according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of a rotary machine according to an embodiment of the present invention.

Fig. 3 is an enlarged perspective view of a holder used in the rotary machine according to the embodiment.

Fig. 4 is an enlarged front view of the rotary machine according to the embodiment, with only the holder and the motor removed.

Fig. 5 is a perspective view of a housing used in the rotary machine according to the embodiment.

Fig. 6 is a plan view showing a state in which a holder holding a motor is incorporated into a housing in the rotary machine according to the embodiment.

Fig. 7 is a sectional view a-a of fig. 6.

Fig. 8 is an exploded perspective view showing a positional relationship among the holder, the wiring board, and the cover in the rotary device according to the embodiment.

Fig. 9 is a sectional view (a sectional view B-B in fig. 1) of a rotary machine according to an embodiment of the present invention.

Fig. 10 is a sectional view (C-C sectional view in fig. 1) of a rotary machine according to an embodiment of the present invention.

Fig. 11 is an enlarged perspective view of a holder used in the rotary machine according to the embodiment.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a perspective view of a rotary machine according to an embodiment of the present invention, and fig. 2 is an exploded perspective view. In fig. 2, since the components housed in the housing 4 are not directly related to the structure of the present invention, they are not illustrated (the same applies to the following drawings). Actually, a reduction gear set or the like for reducing the rotational driving force of the motor 3 is also accommodated in the housing 4 to output the required rotational driving force to the outside.

The rotary machine 1 is configured by housing a motor 3 in a sealed container including a housing 4 having an opening on one surface and a cover 5 combined to cover the opening. In the present embodiment, the motor 3 is held by the holder 2, and the wiring substrate 6 is also held by the holder 2.

Further, the motor 3 is supplied with power via the wiring substrate 6 and is electrically controlled so as to be controlled to a desired number of rotations. The housing 4 is provided with a connection port 42 for introducing a wire harness (not shown) for supplying power to the wiring board and transmitting an electric signal. The wiring substrate 6 is provided with a plurality of holes 61 serving as terminals, and is electrically connected to an external power supply or an external control device by being press-fitted to a connector (not shown) attached to the front end of the wire harness.

Fig. 3 shows an enlarged perspective view of the holder 2. In addition, in order to show a state where the motor 3 is held by the holder 2, an enlarged front view after only the holder 2 and the motor 3 are taken out from the rotating apparatus 1 is shown in fig. 4.

The holder 2 is made of resin and has a pair of pieces (hereinafter referred to as holding pieces) 21, 21 and a body 22 connected to a portion on the one end 21x side of the pair of

holding pieces

21, 21. The main body 22 is hard, but the pair of

holding pieces

21, 21 have elasticity and are formed so as to approach or separate from each other.

The pair of

holding pieces

21, 21 includes: a beam portion 211 extending in a flat plate shape from one end 21x connected to the main body 22; and a protrusion 212 protruding at the other end 21y so as to have an arc-shaped cross section. The protruding portion 212 protrudes from the beam portion 211 toward the outer peripheral surface of the motor 3 in a direction from one retaining piece 21 to the other retaining piece 21 of the pair of

retaining pieces

21, 21. As shown in fig. 4, the flat plate-like beam portion 211 is in contact with the motor 3 at a position slightly closer to the other end 21y (this contact position is referred to as "intermediate contact portion 21 a").

In the intermediate contact portion 21a, the pair of

holding pieces

21, 21 sandwich the outer peripheral surface of the housing of the motor 3 from a direction perpendicular to the axial direction of the rotation shaft of the motor 3 (the vertical direction with respect to the paper surface of fig. 4) (that is, a position where the width of the motor 3 is the maximum width in the extending direction of the holding piece 21). Since the pair of

holding pieces

21, 21 sandwich the motor 3 from the direction perpendicular to the axial direction of the rotation shaft of the motor 3, the pair of

holding pieces

21, 21 can effectively suppress the rotational motion and vibration of the motor 3, and can stably hold the driven motor 3.

As shown in fig. 4, the protruding portion 212 protruding inward (the outer peripheral surface of the housing of the motor 3) contacts the motor 3 at a position closer to the one end 21x than the top portion thereof (the position where the width of the motor 3 is the largest and the most protruding position). In the protruding portion 212, a portion that contacts the motor 3 at a position near the one end 21x becomes an end side contact portion (hereinafter referred to as "the other end side contact portion") 21 b. That is, the other end side contact portion 21b contacts the motor 3 at a position on the bottom side of the housing 4, which is different from the position where the width of the motor 3 is maximized. Thereby, the holder 2 holds the motor 3 so as to sandwich the motor 3 by the intermediate contact portion 21a and the other end side contact portion 21 b.

A curved recess 221 corresponding to the outer peripheral surface of the motor 3 is formed in the central portion of the main body 22 in the extending direction, and the motor 3 is positioned by fitting the outer peripheral surface of the motor 3 into the recess 221, and the retainer 2 stably holds the motor 3 by cooperating with the elastic force of the pair of

retaining pieces

21, 21.

When attempting to hold the motor 3 by the holder 2, the holder 2 is relatively brought close in this state from the positional relationship shown in fig. 2, and even if the protruding portion 212 contacts the outer peripheral surface of the motor 3, the two are brought close in this state, and at this time, the pair of

holding pieces

21, 21 are expanded due to their elasticity, and the protruding portion 212 is narrowed again after passing over the outer diameter of the motor 3, so that the outer peripheral surface of the motor 3 is fitted into the recess 221 and contacts the intermediate contact portion 21a and the other end side contact portion 21b, and finally the motor 3 is held by the holder 2.

The holder 2 may be inserted into a holding region of the motor 3 formed by the concave portion 221, the beam portion 211, and the protruding portion 212 from the axial direction of the rotating shaft of the motor 3, so that the motor 3 is held by the holder 2.

As described above, the motor 3 is held by the holder 2 as shown in fig. 4.

Fig. 5 is a perspective view of the inside of the housing 4 as viewed from obliquely above. The housing 4 is a box-shaped container having an upper opening, and the holder 2 holding the motor 3 is incorporated into the housing 4 such that the other end 21y of the pair of holding

pieces

21, 21 is disposed toward the bottom 41 of the housing 4.

More specifically, a pair of grooves 43 are provided on two opposing inner wall surfaces 45 that stand in the vertical direction from the bottom 41 of the housing 4 toward the cover 5, and the holder 2 holding the motor 3 is incorporated into the housing 4 by slidably fitting the outer side surfaces of the pair of holding

pieces

21, 21. Then, as described later, the holder 2 holding the motor 3 is fixed in the housing 4 by pressing the main body 22 side portion of the holder 2 against the bottom portion 41 of the housing 4.

Fig. 6 is a plan view showing a state where the holder 2 holding the motor 3 is incorporated into the housing 4, and fig. 7 is an a-a sectional view thereof. As shown in fig. 6 and 7, the outer side surfaces of the pair of holding

pieces

21, 21 are restricted by the groove wall surfaces 43a of the pair of grooves 43 in the inner wall surface 45 of the housing 4, and the other ends 21y of the pair of holding

pieces

21, 21 are prevented from spreading in the direction away from each other. That is, the pair of grooves 43 constitutes the "pressing portion" in the present invention.

Therefore, the other ends 21y of the pair of holding

pieces

21, 21 of the assembled holder 2 are suppressed from spreading in the separating direction, and the pair of holding

pieces

21, 21 sandwich the motor 3 from the outer peripheral surface of the motor 3 toward the inside of the motor 3, thereby maintaining the state where the motor 3 is firmly held. That is, the pair of holding

pieces

21 and 21 can be pressed toward the motor 3 (in a direction of approaching each other) by the pressing portion (the pair of grooves 43) with a small number of parts, without requiring a space, and with a simple structure, thereby firmly holding the motor 3.

In particular, in the present embodiment, the motor 3 is held between the other end side contact portion 21b protruding toward the motor 3 side from the intermediate contact portion 21a on the other end 21y side from the intermediate contact portion 21a contacting the outer diameter of the motor 3, and this state is held by the pair of grooves 43 constituting the "pressing portion", so that the motor 3 can be held more firmly.

In the present embodiment, ribs 44 are provided on the groove wall surface 43a of the housing 4 constituting the pair of grooves 43 in the vertical direction from the bottom portion 41 toward the cover 5. Only one of the ribs 44 is visible in fig. 5, but is provided on both sides of a pair of grooves 43. The ribs 44 protrude from the groove wall surface 43a at the same height over a certain length range in the vertical direction from the bottom portion 41 toward the lid 5, but gradually decrease in height as they get farther from the bottom portion 41 and disappear in the middle of the groove 43, whereby the end surfaces of the ribs 44 are formed obliquely.

The rib 44 applies a force to a portion on the other end side of the pair of holding

pieces

21, 21 from the outside. That is, by providing the rib 44, the "pressing portion" of the present embodiment applies a force in a direction in which the other ends of the pair of holding

pieces

21, 21 approach each other. Therefore, the motor 3 is held more firmly by the holder 2.

Further, since the end surfaces of the end portions of the ribs 44 distant from the bottom portion 41 are formed obliquely as described above, the retainer 2 holding the motor 3 is smoothly pushed in by the end portions of the ribs 44 when the outer side surfaces of the pair of holding

pieces

21, 21 are slidably fitted into the pair of grooves 43. Therefore, the holder 2 holding the motor 3 can be easily incorporated into the housing 4 in the press-fitted state.

As shown in fig. 3 and 4, a pair of claws (hereinafter referred to as holding claws) 23 and 23 for holding the wiring board 6 are provided on a main body 22 of the holder 2. The pair of holding

claws

23, 23 extend in the opposite direction to the pair of holding

pieces

21, 21 from the main body 22. The pair of holding

claws

23 and 23 are bifurcated immediately from the main body 22 to form a pair of pieces (hereinafter referred to as holding claw pieces) 23a and 23 a'.

The pair of holding

claw pieces

23a and 23a' are arranged side by side with their leading end portions spaced apart in a direction (width direction of the holding piece 21) perpendicular to a direction from the holding piece 21 to the other holding piece 21 of the pair of holding

pieces

21 and 21. In the example of the present embodiment, the pair of holding

claw pieces

23a, 23a' are bifurcated near the main body 22 at the base end portion, but may be slightly bifurcated at the tip end side. A pair of projections (hereinafter referred to as holding projections) 23b and 23b 'projecting in directions facing away from each other are provided at the tip end portions of the pair of holding

claw pieces

23a and 23 a'.

Fig. 8 is an exploded perspective view showing a positional relationship in a state where the wiring substrate 6 is fixed to the cover 5 by the holder 2. The wiring board 6 has a rectangular shape, and a pair of

semicircular notches

61 and 61 are formed in the outer edges of the opposing sides. The pair of holding

claws

23, 23 are fitted into the pair of notches 61, respectively.

In the present invention, the term "outer edge" when referring to the outer edge of the wiring substrate means an outer edge in an outer shape in a plan view of the wiring substrate, and does not include an edge of an opening when the wiring substrate is provided with a through hole.

The pair of

notches

61, 61 have

opposite regions

61a, 61a at both ends of the semicircular arc, and the pair of holding

claw pieces

23a, 23a' contact the

regions

61a, 61 a. These opposing

regions

61a, 61a become the 1 st and 2 nd portions opposing each other at the edge of the wiring substrate 6.

Alternatively, the pair of

notches

61 and 61 may be omitted, and for example, a through hole may be provided in the wiring board, and the pair of holding claw pieces may be inserted into the through hole and fitted thereto. In this case, the edge of the opening of the through hole corresponds to the "edge" of the wiring substrate held by the holding claw mentioned in the present invention, and the region in contact with the pair of holding claw pieces corresponds to the "1 st and 2 nd portions opposed to each other" mentioned in the present invention.

The wiring substrate 6 is sandwiched between the pair of holding

projections

23b and 23b' of the holding claw 23 and the upper surface (surface on the side where the pair of holding

claws

23 and 23 are provided) 222 of the main body 22 in the thickness direction.

In this state, as shown in fig. 2, the wiring substrate 6, the holder 2, and the motor 3 are sandwiched between the housing 4 and the cover 5, and fixed so that the opening of the housing 4 is covered with the cover 5. Both are fixed by fitting 6 (see fig. 6) projections (hereinafter, referred to as locking projections) 46 provided on the outer periphery near the opening of the housing 4 into 6 (see fig. 8) holes (hereinafter, referred to as locking holes) 51 provided at corresponding portions of the cover 5.

When the cover 5 is fixed to the housing 4, the wiring board 6, the holder 2, and the motor 3 sandwiched therebetween are pressed. Therefore, as described above, the holder 2 holding the motor 3 is fixed in the housing 4 by pressing the main body 22 side of the holder 2 against the bottom portion 41 of the housing 4. The wiring substrate 6 is also fixed to the cover 5 by the holder 2.

Fig. 9 is a B-B sectional view of the rotating apparatus 1 assembled in the above manner (referring to fig. 1, the corresponding portion of the B-B section is also illustrated in fig. 6). Fig. 10 is a C-C sectional view of the rotary machine 1 (fig. 1, and fig. 6 also shows the corresponding part of the C-C section). Fig. 11 is a perspective view of the top 53 of the lid 5. The lower side in fig. 11 is the obliquely left lower direction in fig. 1.

The bottom 41 of the housing 4 is opposed to the top 53 of the cover 5, and the housing is composed of both. A gasket 7 is provided between the case 4 and the cover 5 to ensure the sealing property of the case constituted by the both. In addition, in fig. 6, a gasket 7 is shown in addition to the case 4.

A pair of projections (hereinafter referred to as urging projections) 52 stand on a top portion 53 of the lid 5. As shown in fig. 10, the biasing projection 52 is configured to fit between the pair of holding

claw pieces

23a and 23a' in a wedge shape. In fig. 9, since the biasing projection 52 is shown in a partial cross section, it can be seen that the biasing projection 52 is positioned in front of the holding claw piece 23 a'.

As described above, the outer side of the pair of holding

claw pieces

23a and 23a' contacts the opposing

regions

61a and 61a of the notch 61, and when the biasing protrusion 52 is fitted into the gap between the two at the tip end portions thereof in a wedge shape, the gap between the two is biased in a direction to expand further, that is, the biasing force to the

regions

61a and 61a which are the edges of the wiring substrate 6 increases. In the case of "wedge" in the present invention, the shape of the biasing projection is not necessarily wedge-shaped, but a form in which a gap between the pair of holding claw pieces is pressed and the function of a wedge for widening the gap is exhibited.

Further, the pair of holding

projections

23b and 23b 'are provided at the tip end portions of the pair of holding

claw pieces

23a and 23a', and when the gap between the pair of holding

claw pieces

23a and 23a 'is expanded, the holding

projections

23b and 23b' act so as to press the upper surface 222 of the main body 22, and therefore the urging force in the thickness direction of the wiring substrate 6 is also strengthened.

As described above, the biasing protrusion 52 provided on the cover 5 functions to firmly hold the wiring substrate 6.

Even if the pair of holding

projections

23b and 23b 'are not provided in the holding

claw pieces

23a and 23a', the holding

claw pieces

23a and 23a 'are urged by the urging projections 52 toward the edge of the wiring substrate 6, and the wiring substrate 6 is held, but the holding claw pieces can be held more firmly by the pair of holding

projections

23b and 23 b'.

As described above, according to the rotary machine 1 of the present embodiment, the motor 3 and the wiring board 6 can be firmly held in the sealed container (housing) formed by the housing 4 and the cover 5 with a small number of parts, and a space is not required, and the structure is simple.

The rotary machine of the present invention has been described above with reference to preferred embodiments, but the rotary machine of the present invention is not limited to the configuration of the above-described embodiments. For example, in the above-described embodiment, an example is described in which the case constituted by the case 4 and the lid 5 is a closed container, but in the present invention, the case may not be a closed container. The motor and the wiring board can be firmly held in a casing at least provided with a shell by a few parts even though the container is not sealed in a common container, and the container does not need space and has a simple structure.

In the above-described embodiment, the description has been given of an example of a configuration in which the motor 3 and the wiring board 6 are held by the holder 2 in the housing constituted by the case 4 and the cover 5, but even in a configuration in which only one of them is held, an effect of firmly holding the held motor and wiring board can be obtained.

In the above embodiment, the assembly method is described in the order of holding the motor 3 in the holder 2 and attaching it to the housing 4, and then attaching the wiring board 6 and attaching the cover 5 to the housing 4, but the assembly order is not limited to this. For example, the motor 3 may be placed on the housing 4, the holder 2 may be pressed, and the motor 3 may be fixed to the housing 4 by the holder 2, or the cover 5 may be attached to the wiring substrate 6 before the motor 3 is attached to the housing 4.

Several modifications are listed below.

In the above embodiment, the rib 44 is formed as the pressing portion on the groove wall surface 43a in the groove 43, but the rib 44 may not be formed because the groove 43 alone can function to suppress the other end sides 21y of the pair of holding

pieces

21, 21 from spreading in the direction away from each other. Of course, the formation of the rib 44 is preferable in the configuration of the present embodiment because it acts to apply a force in a direction in which the other end sides 21y of the pair of holding

pieces

21, 21 approach each other.

In the above embodiment, the pair of holding

pieces

21, 21 as the pressing portions hold the outer diameter of the motor 3 from the direction perpendicular to the axial direction of the rotating shaft of the motor 3, but may hold the motor from another direction depending on the shape of the motor, and in the present invention, may hold the motor from such a direction. Of course, the holding from the direction as in the present embodiment can effectively suppress the rotational movement and vibration of the motor 3.

Further, in the above embodiment, the pair of holding

pieces

21, 21 contact the outer periphery of the motor 3 at the position where the intermediate contact portion 21a is distant from the other end side contact portion 21b, but may be, for example, a pair of holding pieces whose contact portions with the motor (contact surface in the case of surface contact, contact line in the case of line contact) have a shape corresponding to the outer periphery of the motor and continuously contact, while the intermediate contact portion is continuous with the other end side contact portion.

In this case, the pressing portion preferably has a shape corresponding to the pair of holding pieces. That is, when the opposite side of the contact portion of the pair of holding pieces to the motor is also curved or curved, the pressing portion is preferably curved or curved corresponding thereto, and when it is planar (or linear) as in the present embodiment, the pressing portion is preferably planar as in the present embodiment. In any configuration, it is effective to provide a rib as in the present embodiment, and therefore, it is preferable.

The motor may have other contact portions with the motor in addition to the intermediate contact portion and the other end side contact portion.

In the above-described embodiment, the example in which the pair of holding

claws

23 and 23 are each formed of the pair of holding

claw pieces

23a and 23a' bifurcated in the middle as the holding claw 23 provided in the holder 2, and only one of the holding claws 23 has a holding force for holding the wiring substrate 6 has been described, but the present invention is not limited thereto.

For example, the pair of holding claws may be arranged such that the distal ends of the opposing elongated plate-like bodies are bent in a hook-like shape toward the opposing side, and the wiring board is held between the pair of holding claws at the edge. In this case, it is preferable that a biasing protrusion for biasing the pair of holding claws in a direction to approach the edge of the wiring board is provided on the top portion of the cover. By providing such a biasing protrusion, the wiring board can be firmly held.

In this case, the outer edge of the wiring substrate may or may not be provided with a notch such as the notch 61 of the present embodiment. When the notch is provided, the pair of holding claws may be positioned in the notch to hold the edge thereof, and when the notch is not provided, the linear outer edge of the wiring substrate may be held as it is. The former is preferable in terms of easy positioning of the wiring board. In this case, a pair of through holes may be provided in the wiring board, and the pair of holding claws may be fitted into the pair of through holes.

Further, the rotating apparatus of the present invention can be appropriately modified by those skilled in the art in view of the knowledge known in the past. It is needless to say that the modifications are included in the scope of the present invention as long as the configuration of the present invention is provided.

(description of reference numerals)

Description of the reference numerals

1, rotating equipment; 2 a holder; 21a holding sheet (sheet); 21a middle contact part; 21b other end side contact portion (end side contact portion); 211 a beam portion; 212 a projection; 22 a main body; 221 a recess; 222 an upper surface; 23 holding claws (claws); 23a, 23a' holding claw pieces (pieces); 23b, 23b' holding projections (protrusions); 3, a motor; 4, a shell; 41 bottom part; a 42 connecting port; 43 grooves (pushing parts); 44 ribs (pushing parts); 45 inner wall surface; 46 a locking projection (protrusion); 5, covering; 51 locking holes (hole parts); 52 force applying projection (protruding portion); 6 a wiring substrate; a notch 61; a region 61 a; 7 liner.

Claims

1. A rotary machine is provided with:

a holder having a pair of pieces and a main body;

a motor sandwiched by the pair of sheets;

a housing that houses the motor sandwiched by the pair of sheets,

the shell is provided with a pushing part,

the pair of pieces sandwiching the motor is pressed toward the motor side by the pressing portion.

2. The rotary apparatus according to claim 1,

the pair of pieces are pressed in a direction to approach each other by the pressing portion.

3. The rotating apparatus according to claim 1 or 2,

the pair of pieces sandwich the motor from an outer peripheral surface of the motor toward an inside.

4. The rotating apparatus according to any one of claims 1 to 3,

the pair of pieces has, in a longitudinal direction of the pair of pieces: an intermediate contact portion that contacts the motor at a position where a width of the motor is a maximum width; and an end side contact portion that contacts the motor at a position different from the maximum width position.

5. The rotary apparatus according to claim 4,

the end side contact portion of the pair of pieces is a protruding portion protruding toward an outer peripheral surface of the motor in a direction from one piece to the other piece.

6. The rotating apparatus according to any one of claims 1 to 5, comprising:

a wiring substrate having a plurality of wiring lines,

the retainer is provided with a claw for holding an edge of the wiring substrate.

7. The rotary apparatus according to claim 6,

a notch is formed in an outer edge of the wiring substrate, and the notch is held by the claw.

8. The rotating apparatus according to claim 6 or 7, provided with:

a case provided with the housing and a cover covering an opening of the housing,

a projection is provided on the cover for applying a force to the claw in a direction close to the edge.

9. The rotary apparatus according to claim 8,

the edge of the wiring substrate has a 1 st portion and a 2 nd portion opposed to each other,

the claw has a pair of blades bifurcated into two,

the pawl has a pair of tabs that contact the 1 st and 2 nd portions respectively,

the protruding portion of the cover is disposed between the pair of pieces of the claw.