CN114825735A - Motor - Google Patents

Abstract

A motor is provided, which can easily ensure a caulking position at a part of a closing part near a first mounting part even if the first mounting part is required to be arranged near the opposite part of a cover part opposite to a cover covering a power supply part and near the outer periphery of the closing part. The motor of the present invention comprises: a motor main body part having a rotor, a stator, and a power supply part; a housing that houses the motor main body and has an opening located on a first side in an axial direction and a notch cut out from an end of the first side toward a second side opposite to the first side; a cover which is attached to the notch and covers the power supply portion from the outer peripheral side; and a cover portion having a closing portion that closes the opening and is caulked by a caulking portion of the housing, and an opposing portion that protrudes outward from the closing portion and opposes the cover on the first side, wherein the cover portion further has a first attachment portion that protrudes outward from the opposing portion.

Description

Motor

Technical Field

The present invention relates to a motor.

Background

As shown in fig. 7, a conventional motor includes: a motor main body portion having a rotor, a stator, and a power supply portion (for supplying power to a coil of the stator); a housing 20X that houses the motor main body portion and has an opening located on a first side (upper side in fig. 7) in the axial direction and a notch cut out from an end of the first side toward a second side (lower side in fig. 7) opposite to the first side; a cover 30X attached to the notch and covering the power supply portion of the motor main body portion from the outer peripheral side; and a lid 40X having a closing portion 41X and an opposing portion 42X, the closing portion 41X closing the opening of the case 20X and being caulked and fixed by a caulking portion 22X of the case 20X, the opposing portion 42X protruding from the closing portion 41X toward the outer circumferential side and opposing the cover 30X on the first side.

However, in the motor, as shown in fig. 7, the first attachment portion 431X to be connected to the external device may be provided at a position adjacent to the opposing portion in the circumferential direction of the closing portion 41X, and in this case, since caulking cannot be performed at the position of the first attachment portion 431X, the closing portion 41X is likely to be lifted up in the vicinity of the first attachment portion 431X when caulking and fixing a plurality of portions of the housing 20X and the lid portion 40X in the circumferential direction.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a motor in which even if it is necessary to provide a first attachment portion near an outer peripheral edge of a closed portion in the vicinity of an opposing portion of a cover portion opposing a cover covering a power supply portion, a caulking position can be easily secured in a portion of the closed portion near the first attachment portion.

In order to achieve the above object, a first aspect of the present invention provides a motor including: a motor main body portion having a rotor, a stator, and a power supply portion; a housing that houses the motor main body portion and has an opening located on a first side in an axial direction and a notch cut out from an end of the first side toward a second side opposite to the first side; a cover attached to the notch and covering the power supply unit from an outer peripheral side; and a cover portion having a closing portion that closes the opening and is caulked to the housing, and an opposing portion that protrudes toward an outer peripheral side from the closing portion and opposes the cover on the first side, wherein the cover portion further has a first mounting portion that protrudes toward an outer peripheral side from the opposing portion.

Here, the "axial direction" refers to an extending direction of a rotation center line of the rotor, and the "outer circumferential side" refers to an outer circumferential side centered on the rotation center line of the rotor.

According to the motor of the present invention, since the cover portion further includes the first mounting portion protruding from the opposing portion toward the outer peripheral side, even if the first mounting portion is provided near the opposing portion of the cover portion near the closed outer peripheral edge, the caulking position is easily secured at the outer peripheral portion of the closing portion near the first mounting portion, and therefore, the caulking fixation of the housing and the cover portion is easily performed uniformly in the circumferential direction, and it is avoided that the closing portion is lifted near the first mounting portion to affect the driving of the motor or cause an unsightly appearance.

In the motor of the present invention, it is preferable that the opposing portion and the cover face each other with a gap therebetween.

According to the motor of the present invention, since the opposing portion and the cover face each other with a gap therebetween, the opposing portion does not come into contact with and deform the cover when the housing and the cover are fixed by caulking, and flatness cannot be ensured.

In the motor according to the present invention, it is preferable that the cover has a projection portion formed thereon, and the projection portion is pressed by the abutting portion coming into abutment with the projection portion by caulking the case and the lid portion.

According to the motor of the present invention, since the projection is formed on the cover and the facing portion is pressed by abutting against the projection in caulking the case and the cover, the noise caused by the rattling of the facing portion of the cover can be avoided.

In the motor of the present invention, it is preferable that a convex portion is formed on the cover, and the opposing portion has a groove portion or a hole portion into which the convex portion is fitted.

According to the motor of the present invention, since the cover is formed with the convex portion and the facing portion has the groove portion or the hole portion into which the convex portion is fitted, the positional relationship of the cover portion with respect to the cover portion can be more stably maintained, and generation of noise due to shaking of the facing portion of the cover portion can be avoided.

In the motor of the present invention, it is preferable that the cover has a peripheral edge surrounding the opposing portion from an outer peripheral side.

According to the motor of the present invention, the cover has the peripheral edge surrounding the opposing portion from the outer peripheral side, and therefore, it is helpful to prevent dust from entering the housing from between the opposing portion of the cover portion and the cover.

In the motor according to the present invention, it is preferable that the first mounting portion protrudes from an end portion in the circumferential direction of the opposing portion.

In the motor according to the present invention, it is preferable that the housing is fixed to the closing portion by a caulking portion formed by caulking an end portion of the first side of the housing, an inclined surface is formed on an outer peripheral edge of a surface of the first side of the closing portion, the inclined surface is inclined so as to be closer to a second side opposite to the first side as the inclined surface is closer to an outer peripheral side, and the caulking portion abuts against the inclined surface.

Here, the phrase "the inclined surface is formed on the outer peripheral edge of the first side of the closing portion" means that the inclined surface is formed on the outer peripheral edge of the first side of the lid portion before the end portion of the first side of the case is caulked to form the caulked portion.

According to the motor of the present invention, since the housing is fixed to the closing portion by the caulking portion formed by caulking the first side end portion of the housing, the inclined surface is formed on the outer peripheral edge of the first side surface of the lid portion, the inclined surface is inclined so as to be closer to the second side opposite to the first side as the outer peripheral side is closer to the inclined surface, and the caulking portion abuts against the inclined surface, when the lid portion and the housing are reliably fixed together in order to increase the contact area between the caulking portion and the outer peripheral edge of the lid portion, the amount of deformation required for the first side end portion of the housing can be reduced as compared with a case where the portion of the lid portion to be caulked by the caulking portion is a flat surface portion perpendicular to the axial direction, and the force applied to the first side end portion of the housing can be reduced, whereby the possibility that the outer peripheral edge of the lid portion deforms toward the second side opposite to the first side in the axial direction and comes into contact with the movable member such as the gear in the housing can be reduced, helping to avoid the performance of the motor being affected.

In the motor of the present invention, it is preferable that an output shaft that protrudes from the housing toward the first side and a gear train that is provided in the housing and transmits rotation of the rotor to the output shaft at a reduced speed are supported by the housing.

Further, in order to achieve the above object, a second aspect of the present invention provides a motor comprising: a motor main body portion having a rotor, a stator, and a power supply portion; a housing that houses the motor main body portion and has an opening located on a first side in an axial direction and a notch cut out from an end of the first side toward a second side opposite to the first side; a cover attached to the notch and covering the power supply unit from an outer peripheral side; and a cover portion having a closing portion and an opposing portion, the closing portion closing the opening and being riveted to the housing, the opposing portion protruding toward the outer peripheral side from the closing portion, and the first side opposing the cover, wherein the cover portion further has a first mounting portion which is bent toward the inner peripheral side and extends to the vicinity of the opposing portion after protruding toward the outer peripheral side from the closing portion.

According to the motor of the present invention, the cover portion further includes the first mounting portion which protrudes outward from the closed portion and then bends inward toward the inner peripheral side to extend to the vicinity of the opposing portion, and therefore, even if the first mounting portion is provided near the opposing portion of the cover portion near the closed outer peripheral edge, a caulking position is easily secured at the outer peripheral portion of the closed portion near the first mounting portion, and therefore, the housing and the cover portion are easily and uniformly caulked and fixed in the circumferential direction, and it is avoided that the closed portion is lifted up near the first mounting portion to affect the driving of the motor or cause an unsightly appearance.

(effect of the invention)

According to the first aspect of the present invention, since the cover further includes the first attachment portion protruding from the opposing portion toward the outer peripheral side, even if the first attachment portion is provided near the opposing portion of the cover near the closed outer peripheral edge, the caulking position is easily secured at the outer peripheral portion of the closing portion near the first attachment portion, and therefore, the case and the cover are easily and uniformly caulked and fixed in the circumferential direction at a plurality of locations, and it is avoided that the closing portion is lifted near the first attachment portion to affect the driving of the motor or to cause an unsightly appearance.

According to the second aspect of the present invention, since the cover portion further includes the first attachment portion which protrudes outward from the closed portion and then bends inward toward the inner peripheral side to extend to the vicinity of the opposing portion, even if the first attachment portion is provided near the opposing portion of the cover portion and near the closed outer peripheral edge, the caulking position is easily secured at the outer peripheral portion of the closed portion near the first attachment portion, and therefore, the case and the cover portion are easily and uniformly caulked and fixed in the circumferential direction, and the closed portion is prevented from tilting near the first attachment portion to affect the driving of the motor or to cause an unsightly appearance.

Drawings

Fig. 1 is a perspective view schematically showing a motor according to embodiment 1 of the present invention.

Fig. 2 is a plan view schematically showing a motor according to embodiment 1 of the present invention.

Fig. 3 is a partial side sectional view schematically showing a motor according to embodiment 1 of the present invention.

Fig. 4 is a perspective view schematically showing a cover included in a motor according to embodiment 1 of the present invention.

Fig. 5 is a perspective view schematically showing a motor according to embodiment 2 of the present invention.

Fig. 6 is a plan view schematically showing a motor according to embodiment 2 of the present invention.

Fig. 7 is a perspective view schematically showing a conventional motor.

(symbol description)

1 Motor

20 casing

21 opening

22 riveting part

30 cover

31 cover body

311 clamping part

32 end wall

321 convex part

322 surrounding edge

33 projection

40 cover part

41 closure part

42 opposite part

421 hole part

431 first mounting part

432 second mounting part

44 inclined plane

45 projection

50 output shaft

60 Gear train

First part of P1 first mounting part

Second part of P2 first mounting part

Third part of the first mounting part of P3

Fourth part of the first mounting part of P4

CP rivet joint position

Detailed Description

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

Here, for convenience of explanation, three directions orthogonal to each other are set as an X direction, a Y direction, and a Z direction, and one side in the X direction is set as X1, the other side in the X direction is set as X2, one side in the Y direction is set as Y1, the other side in the Y direction is set as Y2, one side in the Z direction is set as Z1, the other side in the Z direction is set as Z2, and an axial direction which is an extending direction of a rotation center line of the rotor is set to coincide with the Z direction.

1) Embodiment mode 1

A motor according to embodiment 1 will be described with reference to fig. 1 to 4, in which fig. 1 is a perspective view schematically showing a motor according to an embodiment of the present invention, fig. 2 is a plan view schematically showing a motor according to an embodiment of the present invention, fig. 3 is a partial side sectional view schematically showing a motor according to an embodiment of the present invention, and fig. 4 is a perspective view schematically showing a cover included in a motor according to an embodiment of the present invention.

1-1) integral structure of motor

As shown in fig. 1 to 3, the motor 1 includes: a motor main body portion having a rotor, a stator, and a power supply portion (not shown); a housing 20 that houses the motor main body portion and has an opening 21 located on the Z1 direction side (corresponding to a first side in the axial direction) and a notch (not shown) cut out from an end portion on the Z1 direction side toward the Z2 direction side (corresponding to a second side opposite to the first side); a cover 30 attached to the cutout of the case 20, the cover 30 covering the power supply portion of the motor main body portion from the outer peripheral side; and a lid 40 having a closing portion 41 and an opposing portion 42, the closing portion 41 closing the opening 21 of the case 20 and being caulked by the caulking portion 22 of the case 20, the opposing portion 42 protruding from the closing portion 41 toward the outer circumferential side and opposing the cover 30 on the Z1 direction side; the cover 40 further includes a first attachment portion 431, and the first attachment portion 431 protrudes from the facing portion 42 toward the outer peripheral side.

Here, in the motor main body portion, the rotor includes, for example, a rotating shaft and a magnet fixed to the rotating shaft, the stator is provided, for example, on an outer peripheral side of the rotor, and the power supply portion is provided, for example, on an outer peripheral side of the stator and supplies power to a coil or the like of the stator.

Further, as shown in fig. 1, the housing 20 has: a cylindrical portion having a cylindrical shape (in the illustrated example, but not limited thereto), which extends in the Z direction (which coincides with the axial direction, which is the direction in which the rotation center line of the rotor extends), and which has the notch cut out from the end on the Z1 direction side toward the Z2 direction side; and a bottom plate portion provided at an end portion on the Z2 direction side of the case 20 and opposed to an end portion on the Z2 direction side of the motor main body portion. The housing 20 has a support portion that abuts the lid portion 40 from the Z2 direction side to support the lid portion 40.

As shown in fig. 1 to 3, the case 20 is fixed to the lid 40 by a caulking portion 22 formed by caulking an end portion of the case 20 on the Z1 direction side.

As shown in fig. 1 to 3, the cover 30 includes: a cover main body 31, the cover main body 31 being substantially in a semi-cylindrical shape with a central axis extending in the Z direction and a half of the Y2 direction side cut off, the cover main body 31 being provided with engaging portions 311 at both ends in the circumferential direction thereof, the engaging portions being engaged with engaged portions provided on the housing 20; and an end wall 32, the end wall 32 being formed integrally with an end portion of the cover main body 31 on the Z1 direction side and having a substantially flat plate shape with the thickness direction coinciding with the Z direction. As shown in fig. 3, a projection 33 projecting in the Y1 direction is formed on the Y1 direction side of the cover main body 31.

As shown in fig. 1 and 2, in the cover 40, the first attaching portion 431 protrudes from the circumferential end of the opposing portion 42 (in the illustrated example, the first attaching portion protrudes linearly toward the X2 direction, but is not limited thereto, and may protrude linearly or curvilinearly toward the X1 direction, or may protrude linearly or curvilinearly toward both the X1 direction and the X2 direction, or may protrude in the Y1 direction, or may protrude in a direction inclined with respect to the X direction), and has a through hole through which a screw or the like is inserted and which penetrates in the Z direction. The lid portion 40 further includes a second attachment portion 432, and the second attachment portion 432 protrudes toward the outer peripheral side from a portion of the closing portion 41 facing the facing portion 42 across the rotation center line of the rotor, and has a through hole through which a screw or the like is inserted, the through hole penetrating in the Z direction. The cover 40 is generally flat in shape with the thickness direction aligned with the Z direction.

As shown in fig. 1 to 3, an output shaft 50 is supported on the cover 40, the output shaft 50 being rotatable about a rotation center line extending in the Z direction and being offset from the rotation center line of the rotor; the second mounting portion 432, the output shaft 50, the rotation center line of the rotor, and the facing portion 42 are substantially aligned when viewed in the Z direction.

Further, as shown in fig. 3, a gear train 60 is further provided in the housing 20, the gear train 60 including a plurality of gears rotatable about a rotation center line extending in the Z direction, and transmitting the rotation of the rotor of the motor main body to the output shaft 50 at a reduced speed.

1-2) riveted structure of cover and shell

As shown in fig. 3, an inclined surface 44 is formed on the outer peripheral edge of the surface of the lid 40 on the Z1 direction side, and the inclined surface 44 is inclined so as to be closer to the Z2 direction side as it is closer to the outer peripheral side of the rotor, and the caulking portion 22 of the housing 20 abuts against the inclined surface 44.

Here, the inclined surface 44 is formed on the outer peripheral edge of the surface of the closing portion 41 on the Z1 direction side, the angle of the inclined surface 44 with respect to the Z1 direction side is preferably 10 ° to 80 ° (about 30 ° in the illustrated example), and the entire surface of the caulking portion 22 facing the inclined surface 44 abuts against the inclined surface 44.

As shown in fig. 1 and 3, a protrusion 45 protruding in the Z2 direction is formed on the periphery of the surface of the lid 40 (the closing portion 41 in the illustrated example) on the Z2 direction side, and the radial inner end of the inclined surface 44 is located on the outer circumferential side of the radial inner end of the protrusion 45.

The caulking portions 22 are formed at a plurality of locations in the circumferential direction of the rotor (in the figure, four locations are arranged at substantially equal intervals in the circumferential direction of the rotor, but the caulking portions are not limited thereto), and the inclined surfaces 44 are formed at a plurality of locations in the circumferential direction of the rotor so as to correspond to the caulking portions 22.

1-3) arrangement of cover part and cover

As described above, the facing portion 42 of the lid portion 40 projects from the closing portion 41 of the lid portion 40 toward the outer peripheral side, and faces the cover 30 on the Z1 direction side.

Here, the facing portion 42 faces the cover 30 with a gap therebetween. Specifically, as shown in fig. 1, the facing portion 42 has a flat plate shape in which the thickness direction coincides with the Z direction, and the surface of the facing portion 42 on the Z2 direction side is perpendicular to the Z direction; as shown in fig. 1 and 3, the surface of the end wall 32 of the cover 30 on the Z1 direction side is perpendicular to the Z direction; the surface on the Z2 direction side of the opposing portion 42 faces the surface on the Z1 direction side of the end wall 32 of the cover 30 in parallel with a gap in the Z direction.

As shown in fig. 1, 2, and 4, the cover 30 has a projection 321 formed thereon, and the facing portion 42 has a hole 421 into which the projection 321 is fitted. Specifically, two protrusions 321 (in the illustrated example, but not limited to, a cylindrical shape) protruding in the Z1 direction are formed at intervals in the X direction on the end wall 32 of the cover 30, and the opposing portion 42 has two holes 421 into which the two protrusions 321 are respectively fitted.

As shown in fig. 1, 2, and 4, the cover 30 has a peripheral edge 322 that surrounds the opposing portion 42 from the outer peripheral side. Specifically, a peripheral edge 322 protruding in the Z1 direction is formed at the edges of the end wall 32 of the cover 30 on the X1 direction side and the Y1 direction side, and the peripheral edge 322 abuts against the opposing portion 42 from the X1 direction side and the Y1 direction side.

1-4) the main effects of the present embodiment

According to the motor 1 of the present embodiment, since the cover portion 40 further includes the first attachment portion 431 and the first attachment portion 431 protrudes from the opposing portion 42 toward the outer peripheral side, even if the first attachment portion 431 is provided at a position of the closing portion 41 of the cover portion 40 close to the opposing portion 42, the caulking position CP is easily secured at the outer peripheral portion of the closing portion 41 close to the first attachment portion 431, and therefore, the caulking fixation is easily performed uniformly in the circumferential direction at a plurality of portions of the housing 20 and the cover portion 40, and it is avoided that the closing portion 41 is lifted up in the vicinity of the first attachment portion 431 to affect the driving of the motor 1 or to cause an unsightly appearance.

Further, according to the motor 1 of the present embodiment, the inclined surface 44 is formed on the outer peripheral edge of the surface of the lid 40 on the Z1 direction side, the inclined surface 44 is inclined so as to be closer to the Z2 direction side as it goes to the outer peripheral side of the rotor, and the caulking portion 22 of the housing 20 abuts against the inclined surface 44, and therefore, in order to increase the contact area of the rivet 22 with the outer periphery of the lid portion 40 to reliably fix the lid portion 40 and the case 20 together, compared with the case where the portion of the lid 40 to be caulked by the caulking portion 22 is a flat portion perpendicular to the axial direction, the amount of deformation required at the end portion on the Z1 direction side of the case 20 can be reduced, the force applied to the end portion on the Z1 direction side of the case 20 can be reduced, this reduces the possibility that the outer peripheral edge of the lid 40 deforms toward the Z2 direction and comes into contact with a movable member such as a gear in the housing 20, thereby contributing to avoiding an adverse effect on the performance of the motor 1.

2) Embodiment mode 2

A motor according to embodiment 2 will be described with reference to fig. 5 and 6, where fig. 5 is a perspective view schematically showing the motor according to embodiment 2 of the present invention, and fig. 6 is a plan view schematically showing the motor according to embodiment 2 of the present invention.

The motor in the present embodiment has basically the same configuration as the motor in embodiment 1 described above, and differs therefrom in the configurations of the first mounting portion, the opposing portion of the cover portion and the cover, and therefore the same or corresponding portions as the motor in embodiment 1 described above are denoted by the same reference numerals, and only the configurations of the first mounting portion, the opposing portion of the cover portion and the cover in the present embodiment will be described.

In the present embodiment, as shown in fig. 5 and 6, the first attachment portion 431 of the cover portion 40 is formed to protrude from the closing portion 41 toward the outer circumferential side and then to be bent toward the inner circumferential side and extend to the vicinity of the opposing portion 42. Specifically, the first mounting part 431 includes; a first portion P1 that protrudes substantially outward in the radial direction of the rotor from a position of the closing portion 41 that is separated from the opposing portion 42 in the circumferential direction; a second portion P2 bent toward the Z2 direction side with respect to the first portion P1 (in the illustrated example, the second portion P2 is bent at substantially 90 degrees, but is not limited thereto), and extending from the first portion P1 toward the opposing portion 42 side in a direction substantially perpendicular to the radial direction of the rotor; a third portion P3, which is bent toward the opposing portion 42 side with respect to the second portion P2 (in the illustrated example, the third portion P3 is bent at substantially 90 degrees, but is not limited thereto), and which extends from the second portion P2 to the vicinity of the opposing portion 42; and a fourth portion P4 that is bent from the edge of the third portion P3 on the Z1 direction side toward the outer peripheral side with respect to the third portion P3 (in the illustrated example, the fourth portion P4 is bent at substantially 90 degrees, but is not limited thereto), and a through hole through which a screw or the like is inserted is formed in the fourth portion P4 so as to penetrate in the Z direction.

In the present embodiment, the peripheral edge 322 protruding in the Z1 direction is formed at the edges of the end wall 32 of the cover 30 on the X1 direction side, the Y1 direction side, and the X2 direction side, and the peripheral edge 322 abuts against the facing portion 42 from the X1 direction side, the Y1 direction side, and the X2 direction side.

In the present embodiment, the convex portion 321 of the cover 30 and the hole portion 421 of the facing portion 42 in embodiment 1 are omitted.

According to the motor of the present embodiment, since the caulking position CP can be secured at the outer peripheral portion of the closing portion 41 close to the first attachment portion 431, it is easy to perform caulking fixation of a plurality of portions of the housing 20 and the lid portion 40 uniformly in the circumferential direction, and it is possible to prevent the closing portion 41 from lifting up in the vicinity of the first attachment portion 431 to affect the driving of the motor 1 or to make the appearance thereof unattractive.

The present invention is described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments.

For example, in embodiments 1 and 2, the cover 30 may be formed with a projection, and the opposing portion 42 may be pressed and crushed by coming into contact with the projection in caulking the case 20 and the cover 40. Specifically, one or more protruding portions whose tips are pressed against the lid portion 40 by caulking the case 20 and the lid portion 40 may be formed at positions other than the protruding portions 321 of the end wall 32.

In embodiment 1, the cover 30 is provided with the protruding portions 321, and the facing portion 42 has the holes 421 into which the protruding portions 321 fit, but the present invention is not limited to this, and the facing portion 42 may have groove portions into which the protruding portions 321 fit, and the number, position, and shape of the protruding portions 321 and the holes 421 may be appropriately set as needed.

In embodiments 1 and 2, the facing portion 42 and the cover 30 face each other with a gap therebetween, but the present invention is not limited to this, and the facing portion 42 and the cover 30 may abut against each other.

In embodiments 1 and 2, the protruding portion 45 protruding in the Z2 direction side is formed on the peripheral edge of the surface of the lid 40 on the Z2 direction side, but the present invention is not limited to this, and the protruding portion 45 may not be formed in some cases.

In embodiments 1 and 2, the cover 30 has the peripheral edge 322 surrounding the opposing portion 42 from the outer peripheral side, but the present invention is not limited to this, and the peripheral edge 322 may be omitted in some cases.

In embodiments 1 and 2, the entire surface of the caulking portion 22 facing the inclined surface 44 is in contact with the inclined surface 44, but the present invention is not limited thereto, and the surface of the caulking portion 22 facing the inclined surface 44 may be partially in contact with the inclined surface 44.

In embodiments 1 and 2, the caulking portions 22 are formed at a plurality of locations in the circumferential direction of the rotor, and the inclined surfaces 44 are formed at a plurality of locations in the circumferential direction of the rotor so as to correspond to the caulking portions 22, but the present invention is not limited thereto, and only one caulking portion 22 and one inclined surface 44 may be formed.

It should be understood that the present invention can freely combine the respective components in the embodiments, or appropriately change or omit the respective components in the embodiments within the scope thereof.

Claims (10)

1. A motor, comprising: a motor main body portion having a rotor, a stator, and a power supply portion; a housing that houses the motor main body portion and has an opening located on a first side in an axial direction and a notch cut out from an end of the first side toward a second side opposite to the first side; a cover attached to the notch and covering the power supply unit from an outer peripheral side; and a cover having a closing portion that closes the opening and is caulked to the housing, and an opposing portion that protrudes outward from the closing portion and opposes the cover on the first side,

the cover portion also has a first mounting portion,

the first attachment portion protrudes from the opposing portion toward the outer peripheral side.

2. The motor of claim 1,

the opposing portion is opposed to the cover with a gap therebetween.

3. The motor of claim 2,

a protrusion is formed on the cover,

the opposing portion is in contact with the protruding portion by caulking the case and the lid portion, and the protruding portion is crushed.

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

a convex portion is formed on the cover,

the opposing portion has a groove portion or a hole portion into which the convex portion is fitted.

5. The motor according to any one of claims 1 to 3,

the cover has a peripheral edge surrounding the opposing portion from an outer peripheral side.

6. The motor according to any one of claims 1 to 3,

the first mounting portion protrudes from an end portion of the opposing portion in the circumferential direction.

7. The motor according to any one of claims 1 to 3,

the case is fixed to the closing portion by a caulking portion formed by caulking an end portion of the first side of the case,

an inclined surface is formed on the outer periphery of the first side surface of the closing portion,

the inclined surface is inclined so as to be closer to a second side opposite to the first side as the inclined surface is closer to the outer peripheral side,

the riveting part is abutted against the inclined surface.

8. The motor of claim 7,

the entire surface of the caulking portion facing the inclined surface abuts against the inclined surface.

9. The motor according to any one of claims 1 to 3,

an output shaft and a gear train are supported on the housing,

the output shaft protrudes from the housing toward the first side,

the gear train is disposed within the housing and transmits the rotation of the rotor to the output shaft at a reduced speed.

10. A motor, comprising: a motor main body portion having a rotor, a stator, and a power supply portion; a housing that houses the motor main body portion and has an opening located on a first side in an axial direction and a notch cut out from an end of the first side toward a second side opposite to the first side; a cover attached to the notch and covering the power supply unit from an outer peripheral side; and a cover having a closing portion that closes the opening and is caulked to the housing, and an opposing portion that protrudes outward from the closing portion and opposes the cover on the first side,

the cover portion also has a first mounting portion,

the first mounting portion protrudes from the closed portion toward the outer peripheral side, and then is bent toward the inner peripheral side to extend to the vicinity of the opposing portion.

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