TW201807931A - Motor device enabling to prevent the output shaft from tilting, increase the rotational precision of output shaft, and prevent bad engagement in gears and the generation of noise - Google Patents

Abstract

A motor device is disclosed, when the gear connected to the output shaft receives an acting force from the driven gear of the connected counterpart that is meshed with the gear, the gear is prevented from moving in the diametrical direction of output shaft to prevent the output shaft from tilting, thus increasing the rotational precision of output shaft, thereby preventing bad engagement in gears and the generation of noise. The motor device comprises: a motor body having a housing and an output shaft protruding from the housing; and a gear connected to the portion of output shaft protruding from the housing, wherein the motor device also comprises a mounting frame having a mounting part and a supporting part connected to the mounting part. The mounting part is mounted on the housing, the supporting part is located on one side of gear opposite to the housing in the axial direction of output shaft, and supports the side of gear opposite to the housing.

Description

Motor device

The invention relates to a motor device.

At present, there is a motor device, as shown in FIG. 4, which includes a motor body 110X and a gear 120X, wherein the motor body 110X has a rotor, a stator, and a gear set (here, the rotor, the stator, and the gear set are not shown) The housing 111X and the output shaft 112X protruding from the housing 111X, the gear 120X is engaged with the part of the output shaft 112X protruding from the housing 111X, and the C-ring 150X which is in contact with the end face of the gear 120X is prevented from the gear 120X from the output shaft 112X came off.

During the operation of the above motor device, by driving the rotor inside the motor body 110X to rotate relative to the stator, the rotation of the rotor can be transmitted to the output shaft 112X through the gear set, thereby driving the gear 120X to rotate.

The above motor device can be applied to a projector. For example, as shown in FIG. 5, the above motor device is installed in a housing 210X of the projector (usually, the motor body 110X is fixed to the housing 210X) so that the central axis L1 of the gear 120X and The central axis L2 of the barrel-side gear 221X provided on the outer periphery of the lens barrel 220X is spaced at an appropriate interval in parallel with each other, and the gear 120X is meshed with the barrel-side gear 221X, whereby the motor device rotates the gear 120X by driving The lens barrel 220X is rotated to perform focusing and the like of the projector.

However, in the projector having the above structure, when the motor device drives the gear 120X to rotate, the gear 120X receives a reaction force from the lens barrel side gear 221X, as shown in FIGS. 4 and 5, because the front end of the output shaft 112X is not Supported, therefore, the gear 120X is easy to move in the radial direction of the output shaft 112X, and it is easy to cause the output shaft 112X to tilt in the radial direction and cause wear, which in turn causes the rotation accuracy of the output shaft 112X to be reduced. Problems such as poor positioning accuracy of the projector.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a motor device that helps to avoid gears when a gear connected to an output shaft receives a force from a driven gear or the like of a connection object with which the gear is engaged. Movement in the radial direction of the output shaft causes the output shaft to tilt, which improves the rotation accuracy of the output shaft, thereby avoiding poor meshing of gears and noise.

To achieve the above object, a motor device according to a first aspect of the present invention includes: a motor body having a housing and an output shaft protruding from the housing; and a gear, the gear and a portion of the output shaft protruding from the housing The connection, wherein the motor device further includes a mounting frame having a mounting portion and a supporting portion connected to the mounting portion, wherein the mounting portion is mounted on the housing, and the supporting portion is on the output The axis of the shaft is located on the opposite side of the gear from the housing, and supports the opposite side of the gear from the housing.

According to the motor device according to the first aspect of the present invention, the mounting frame can support the opposite side of the gear connected to the output shaft from the housing. Therefore, in actual use of the motor device, when the gear connected to the output shaft receives When the force of a driven gear or the like of a meshed connection object (such as a projector) helps to prevent the gear from moving in the radial direction of the output shaft and cause the output shaft to tilt, thereby improving the rotation accuracy of the output shaft, It also helps to avoid gear meshing and noise.

A motor device according to a second aspect of the present invention is the motor device according to the first aspect of the present invention, wherein the gear is mounted on the output shaft such that a front end of the output shaft protrudes from the gear, and the support portion By supporting the front end of the output shaft, the opposite side of the gear from the housing is supported.

According to the motor device of the second aspect of the present invention, the conventional motor device does not need to be greatly changed. As long as a frame is added to the motor device, the gear device can be prevented from moving in the radial direction of the output shaft in actual use of the motor device. As a result, the output shaft is tilted and the rotation accuracy of the output shaft is improved.

A motor device according to a third aspect of the present invention is the motor device according to the second aspect of the present invention, wherein the support portion has an opening portion that opens toward one side in a direction perpendicular to the axial direction of the output shaft And the front end of the output shaft can be inserted from one side in a direction perpendicular to the axial direction of the output shaft.

According to the motor device of the third aspect of the present invention, according to actual needs, the gear can be conveniently assembled in the mounting frame in a direction perpendicular to the axial direction of the output shaft, which contributes to improving the production efficiency of the motor device.

A motor device according to a fourth aspect of the present invention is the motor device according to the third aspect of the present invention, the front end of the output shaft is fitted into the opening portion via a C-ring, and the C-ring and the opening portion Enclose the entire peripheral surface of the front end of the output shaft together.

According to the motor device of the fourth aspect of the present invention, by using the C-ring and the opening portion to surround the entire peripheral surface of the output shaft, it is possible to prevent the front end of the output shaft from coming out of the opening portion in a direction perpendicular to the axial direction of the output shaft. It can more reliably prevent the gear from moving in the radial direction of the output shaft and cause the output shaft to tilt, thereby improving the rotation accuracy of the output shaft.

A motor device according to a fifth aspect of the present invention is the motor device according to the second aspect of the present invention, wherein the support portion has a through hole that penetrates the support portion along the axial direction of the output shaft, and the output A shaft is inserted into the through hole.

According to the motor device of the fifth aspect of the present invention, it is possible to reliably prevent the gear from falling off the output shaft due to movement in the radial direction of the output shaft.

A motor device according to a sixth aspect of the present invention is the motor device according to the first aspect of the present invention. The gear is provided with a shaft portion from an end surface of the gear on the side opposite to the housing. Protruding, the casing side of the gear is connected to the output shaft, and the support portion supports the shaft portion to support the gear on the side opposite to the casing.

According to the motor device of the sixth aspect of the present invention, after the gears are assembled in the mounting frame, they can be assembled in the housing, and an appropriate assembly method can be conveniently selected according to actual needs, thereby improving assembly efficiency.

A motor device according to a seventh aspect of the present invention is the motor device according to the sixth aspect of the present invention. The gear is provided with an engaging portion, and the gear is engaged with the front end of the output shaft through the engaging portion. And connected to the output shaft.

According to the motor device of the seventh aspect of the present invention, the gear can be conveniently connected to the output shaft, and the position accuracy of the gear with respect to the output shaft can be improved.

According to an eighth aspect of the present invention, in the motor device according to the sixth aspect of the present invention, the support portion has an opening portion that opens toward one side in a direction perpendicular to the axial direction of the output shaft. , And the shaft portion can be fitted from one side in a direction perpendicular to the axial direction of the output shaft.

According to the motor device of the eighth aspect of the present invention, according to actual needs, the gear can be conveniently assembled in the mounting frame in a direction perpendicular to the axial direction of the output shaft, which contributes to improving the production efficiency of the motor device.

A motor device according to a ninth aspect of the present invention is the motor device according to the eighth aspect of the present invention, wherein the shaft portion is fitted into the opening portion via a C-ring, and the C-ring is surrounded by the opening portion. The entire peripheral surface of the shaft portion.

According to the motor device of the ninth aspect of the present invention, by using the C-ring and the opening portion to surround the entire peripheral surface of the shaft portion, it is possible to prevent the shaft portion from coming out of the opening portion in a direction perpendicular to the axial direction of the output shaft. The tilting of the output shaft caused by the gear moving in the radial direction of the output shaft is reliably avoided, and the rotation accuracy of the output shaft is improved.

A motor device according to a tenth aspect of the present invention is the motor device according to the sixth aspect of the present invention, wherein the support portion has a through hole penetrating the support portion along the axial direction of the output shaft, and the shaft The part is inserted into the through hole.

According to the motor device of the tenth aspect of the present invention, it is possible to reliably prevent the gear from falling off the output shaft due to movement in the radial direction of the output shaft.

An eleventh invention of the present invention is based on the motor device of the first aspect of the present invention. The mounting portion includes a mounting plate portion and a connection plate portion. The mounting plate portion is mounted on the housing. The connection plate portion connects the mounting plate portion and the support portion.

According to the motor device of the eleventh invention of the present invention, by using a thin plate-like member to form the mounting portion, the manufacturing material of the mounting frame can be saved, thereby reducing the manufacturing cost.

A twelfth aspect of the present invention is a motor device based on the eleventh aspect of the present invention. The mounting plate portion is provided with a locking portion, and the casing is provided with the locked portion. The mounting frame is fixed to the housing by the locking portion and the locked portion being locked.

According to the motor device of the twelfth invention of the present invention, the mounting frame can be easily fixed to the housing, and the assembly efficiency of the motor device is improved.

A motor device according to a thirteenth aspect of the present invention is the motor device according to the twelfth aspect of the present invention, wherein the locked portion is a protrusion extending from the housing in a direction perpendicular to an axial direction of the output shaft. The locking portion is a pair of locking protrusions protruding toward the housing side, and the pair of locking protrusions sandwich the protrusion from both sides.

According to the motor device of the thirteenth invention of the present invention, the locking portion and the locked portion can be formed with a simple structure, thereby improving the production efficiency of the motor device.

A motor device according to a fourteenth aspect of the present invention is the motor device according to the first aspect of the present invention, and a rotor, a stator, and a gear set that transmits rotation of the rotor to the output shaft are housed in the housing.

According to the motor device of the fourteenth invention of the present invention, the output shaft can be rotated at an appropriate rotation speed according to actual needs.

Advantageous Effects of Invention According to the motor device of the present invention, the mounting frame can support the side of the gear connected to the output shaft on the opposite side of the housing. Therefore, in actual use of the motor device, when the gear connected to the output shaft receives the When the force of a driven gear or the like of a meshed connection object (such as a projector, etc.) helps to prevent the gear from moving in the radial direction of the output shaft and cause the output shaft to tilt, thereby improving the rotation accuracy of the output shaft, It also helps to avoid gear meshing and noise.

Hereinafter, a motor device according to an embodiment of the present invention will be described with reference to the drawings. In addition, for convenience of explanation, the three directions orthogonal to each other are set to the X direction, the Y direction, and the Z direction, and the X direction is set to be parallel to the axis L direction of the output shaft of the motor device.

<Embodiment 1> Hereinafter, the motor device 1 according to Embodiment 1 of the present invention will be described with reference to Figs. 1A to 1G. Fig. 1A is a perspective view schematically showing the structure of the motor device 1 according to Embodiment 1 of the present invention, and Fig. 1B is a schematic view. An exploded perspective view showing the structure of the motor device 1 according to the first embodiment of the present invention. FIG. 1C is a plan view schematically showing the structure of the motor device 1 according to the first embodiment of the present invention. FIG. 1D is a schematic view showing the motor device 1 according to the first embodiment of the present invention. 1E is a side cross-sectional view schematically showing the structure of a motor body included in the motor device 1 according to the first embodiment of the present invention, and FIG. 1F is a diagram showing the structure of the motor body included in the motor device 1 according to the first embodiment of the present invention. 1G is a plan view of a gear set showing a structure of a motor body included in the motor device 1 according to Embodiment 1 of the present invention.

[Overall Structure of Motor Device 1] As shown in FIGS. 1A to 1D, the motor device 1 includes a motor body 10 having a housing 11 and an output shaft 12 protruding from the housing 11; and a gear 20, the gear 20 is connected to a portion of the output shaft 12 protruding from the housing 11.

In addition, as shown in FIGS. 1A to 1D, the motor device 1 further includes a mounting frame 30 having a mounting portion 31 and a support portion 32 connected to the mounting portion 31, wherein the mounting portion 31 is mounted On the housing 11, the support portion 32 is located on the opposite side of the gear 20 (ie, the upper side in FIG. 1A) from the housing 20 in the axis L direction (ie, the X direction) of the output shaft 12, and the The side opposite to the case 11 is supported.

[Structure of Motor Body 10] As shown in FIGS. 1E to 1G, the motor body 10 includes a substantially cylindrical casing 11 and an output shaft 12 protruding from the casing 11. The casing 13 houses a rotor 13, a stator 14, and The rotation of the gear set 15 and the rotor 13 can be transmitted to the output shaft 12 via the gear set 15.

Here, as shown in FIG. 1B, the casing 11 includes a cylindrical casing member and a plate member that closes the opening of the casing member. Specifically, as shown in FIG. 1E, the housing 11 includes a peripheral wall portion 111 and a first plate portion 112. The first plate portion 112 is provided on the output shaft 12 of the peripheral wall portion 111 so as to be formed separately from the peripheral wall portion 111. One end side in the direction of the axis L and closing the opening on the one end side of the peripheral wall portion 111 in the axis L direction of the output shaft 12; a second plate portion 113 formed integrally with the peripheral wall portion 111 Is provided on the other end side of the peripheral wall portion 111 in the axis L direction of the output shaft 12 and closes the opening on the other end side of the peripheral wall portion 111 in the axis L direction of the output shaft 12; and the partition 114, The partition plate 114 is fixed to the peripheral wall portion 111 so as to be provided between the first plate portion 112 and the second plate portion 113, and is provided with a hole 1141 through which the rotating shaft 131 of the rotor 13 passes.

In addition, as shown in FIG. 1E, the rotor 13 includes a rotating shaft 131 which extends in a direction parallel to the axis L direction of the output shaft 12 and penetrates the partition plate 114. One end side is rotatably supported by the first plate. The portion 112 is supported, and the other end side is rotatably supported by the second plate portion 113; and a magnet 132 is mounted on the rotating shaft 131.

In addition, as shown in FIG. 1E, the stator 14 is fixed in the housing 11 so as to surround the rotor 13 and includes a first stator core group 141 and a second stator core group 142 arranged along the axis L direction of the output shaft 12.

In addition, as shown in FIGS. 1F and 1G, the gear set 15 includes a first gear 151 having a large-diameter gear 1511 meshing with a gear 1311 at the front end of the rotating shaft 131 and an integrally formed with the large-diameter gear 1511. Small diameter gear 1512; a second gear 152 having a large diameter gear 1521 meshing with the small diameter gear 1512 of the first gear 151 and a small diameter gear 1522 integrally formed with the large diameter gear 1521; a third gear 153, the third gear 153 has a large-diameter gear 1531 meshing with the small-diameter gear 1522 of the second gear 152 and a small-diameter gear 1532 integrally formed with the large-diameter gear 1531; and a fourth gear 154, the fourth gear 154 The large-diameter gear 1541 meshed with the small-diameter gear 1532 of the third gear 153 and the small-diameter gear 1542 formed integrally with the large-diameter gear 1541. Here, the first gear 151, the second gear 152, the third gear 153, and the fourth gear 154 are respectively rotatable via support shafts 161, 162, 163, and 164 extending in a direction parallel to the axis L direction of the output shaft 12. The support shafts 161, 162, 163, and 164 are supported on the housing 11 at one end by the first plate portion 112 and at the other end side by the partition plate 114.

In addition, as shown in FIG. 1G, the output shaft 12 has a shaft main body 121 and an output shaft gear 122 integrally formed with the shaft main body 121, wherein one end (the upper end in FIG. 1G) of the shaft main body 121 passes through the first plate portion 112. The hole 1121 protrudes from the housing 11. The middle part and the other end (lower end in FIG. 1G) of the shaft body 121 are supported by the peripheral part of the hole 1121 and the partition 114. The output shaft gear 122 is located in the housing 11 and is connected with the gear set. The small-diameter gear 1542 of the fourth gear 154 of 15 meshes.

[Structure of Gear 20, Mounting Frame 30, and Peripheral Parts] As shown in FIG. 1C, the gear 20 is provided with a shaft portion 201 that protrudes from an end surface of the gear 20 on the side opposite to the housing 11 and the gear The side of the housing 20 facing the output shaft 12 is connected to the output shaft 12.

Here, an engagement portion (not shown) such as a hole portion is provided on the gear 20 (specifically, a portion of the gear 20 on the side of the casing 11), and the gear 20 passes through the engagement portion and the front end of the output shaft 12. It is engaged with and connected to the output shaft 12.

As described above, the mounting frame 30 includes the mounting portion 31 and the support portion 32 connected to the mounting portion 31.

Specifically, as shown in FIG. 1B, the mounting portion 31 includes a mounting plate portion 311 and a connection plate portion 312. The mounting plate portion 311 is mounted on the housing 11. The connection plate portion 312 connects the mounting plate portion 311 with the mounting plate portion 311. The supporting portion 32 is connected.

More specifically, as shown in FIGS. 1A and 1B, the mounting plate portion 311 has a substantially circular plate shape, the support portion 32 has a substantially fan-shaped plate shape, and the connection plate portion 312 extends substantially along the axis L direction of the output shaft 12. The plate portion 311, the connection plate portion 312, and the support portion 32 surround a space in which the gear 20 is housed.

The mounting plate portion 311 is provided with a hole (not shown) through which the output shaft 12 passes and is connected to the gear 20.

Further, as shown in FIGS. 1A to 1D, a locking portion 3111 is provided on the mounting plate portion 311, a locked portion 1122 is provided on the housing 11 (specifically, the first plate portion 112), and the mounting frame 30 passes through the card. The fixing portion 3111 and the locked portion 1122 are locked and fixed to the housing 11. Here, the locked portion 1122 is a protruding portion (along the first plate in the illustrated example) extending from the housing 11 in a direction perpendicular to the axis L direction of the output shaft 12 (the Y direction in the illustrated example). The periphery of the portion 112 is provided at two intervals, but is not limited thereto. The locking portion 3111 is a pair of locking projections protruding toward the housing 11 side (in the example shown in the mounting plate, The periphery of the portion 311 is provided with two pairs, but is not limited to this), the pair of locking projections clamp the protrusions from both sides in the circumferential direction.

Further, as shown in FIG. 1C, the support portion 32 has an opening portion 321 (which is provided at the center portion of the fan shape in the example shown in the figure, but is not limited thereto), and the opening portion 321 faces the axis with the output shaft 12 One side in the direction perpendicular to the L direction (here, the Z direction) is open, and the shaft portion 201 can be opened in one direction (the Z direction in the example shown) perpendicular to the axis L direction of the output shaft 12. Side embedding.

In addition, as shown in FIG. 1C, the shaft portion 201 is fitted into the opening portion 321 via the C-shaped ring 50, and the C-shaped ring 50 and the opening portion 321 surround the entire peripheral surface of the shaft portion 201.

[An example of the method of assembling the motor device 1] When assembling, for example, the gear 20 may be assembled to the mounting frame 30 first, and then assembled to the motor body 10. Specifically, for example, the gear 20 is first installed in a space surrounded by the mounting plate portion 311, the connection plate portion 312, and the support portion 32 so that the shaft portion 201 is fitted into the opening portion 321 via the C-ring 50. Next, the locking portion 3111 and the locked portion 1122 are engaged with each other, and the engaging portion of the gear 20 is engaged with the front end of the output shaft 12 to complete the assembly of the motor device 1.

According to this embodiment, the mounting frame 30 can support the gear 20 connected to the output shaft 12 on the side opposite to the housing 11. Therefore, in actual use, when the gear 20 connected to the output shaft 12 is subjected to the gear 20 When the force of the driven gear, rack, etc. of the meshed connection object (such as a projector, etc.) helps to prevent the gear 20 from moving in the radial direction of the output shaft 12 and cause the output shaft 12 to tilt, the output shaft 12 is improved. The rotation accuracy can also prevent the meshing failure of the gear 20 and the generation of noise.

In addition, according to the present embodiment, in actual use, the motor device 1 can be better mounted by mounting the motor device 1 such that the opening of the opening portion 321 faces the driven gear side of a connection object (such as a projector or the like) that meshes with the gear 20. Bearing force from driven gears, racks, and the like from a connected object (such as a projector, etc.) to prevent the gear 20 from moving in the radial direction of the output shaft 12 and causing the front end of the output shaft 12 to be misaligned.

<Embodiment 2> Hereinafter, a motor device 1A according to a second embodiment of the present invention will be described with reference to Figs. 2A to 4C. Fig. 2A is a perspective view schematically showing the configuration of the motor device 1A according to the second embodiment of the present invention, and Fig. 2B is a schematic view. A plan view showing the configuration of the motor device 1A according to the second embodiment of the present invention, and FIG. 2C is a side view schematically showing the configuration of the motor device 1A according to the second embodiment of the present invention.

The structure of the motor device 1A of the present embodiment is basically the same as that of the motor device 1 of the first embodiment described above, except that the gear 20A is attached to the output shaft 12A so that the front end of the output shaft 12A protrudes from the gear 20A. Specifically, a hole portion 202A extending through the gear 20A is provided in a radial center portion of the gear 20A, and an output shaft 12A protruding from the housing 11A of the motor body 10A passes through the hole portion 202A of the gear 20A (here, for example, a hole The portion 202A is formed in a D shape or the like when viewed in the axial direction of the output shaft 12A, and the portion of the output shaft 12A that is engaged with the hole portion 202A is formed into a corresponding shape to realize the rotation prevention of the gear 20A relative to the output shaft 12A. (Of course, it is not limited to this, but rotation can also be achieved by adhesion). The front end of the output shaft 12A is fitted into the opening portion 321A of the support portion 32A of the mounting frame 30A via the C-ring 50A, and the C-ring 50A and the opening portion 321A surround the entire peripheral surface of the front end of the output shaft 12A. Here, except that the output shaft 12A is longer than the output shaft 12 of the motor body 10 of the first embodiment, the motor body 10A is the same as the motor body 10 of the first embodiment, and the structure of the mounting frame 30A is also the same as that of the above embodiment. The mounting frame 30 of 1 is the same, and therefore the detailed structures of the motor body 10A and the mounting frame 30A are not described again.

According to this embodiment, it is possible to achieve substantially the same technical effects as those of the first embodiment.

According to this embodiment, the conventional motor device does not need to be greatly changed. As long as an additional mounting frame is added to the conventional motor device, it is possible to avoid the gear from moving in the radial direction of the output shaft and causing the output shaft to tilt in actual use of the motor device. .

The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the foregoing embodiments.

For example, the motor device of the above embodiment can be applied to a projector as shown in FIG. 5. At this time, the gear of the motor device is meshed with the lens barrel side gear of the projector, whereby the motor device drives the gear to rotate the lens The lens barrel rotates to enable focusing of the projector. In this case, it is better to mount the motor device such that the opening is open toward the side of the barrel-side gear, thereby preventing the gear from moving in the radial direction of the output shaft more reliably and improving the rotation accuracy of the output shaft.

In addition, in the above-mentioned embodiment, the motor body contains a rotor, a stator, and a gear set in a housing, and the rotation of the rotor is transmitted to the output shaft via the gear set, but it is not limited thereto, and the specific structure of the motor body may be appropriately adapted as required. change. For example, the motor body may not include a gear set. In this case, the output shaft may be directly connected to the rotating shaft of the rotor.

In addition, in the above-mentioned embodiment, the mounting plate portion has a substantially circular plate shape, and the support portion has a substantially fan-shaped plate shape. For example, the support portion may be formed in a substantially circular plate shape.

In addition, in the above-mentioned embodiment, the support portion 32 has the opening portion 321 and the support portion 32A has the opening portion 321A, but is not limited thereto. For example, as shown in FIGS. 3A and 3B, the support portion 32B may be provided. The through hole 322B penetrating through the support portion 32B along the axis L direction of the output shaft instead of the opening portions 321 and 321A. At this time, by inserting the output shaft or shaft portion, for example, through the through-hole 322B via the C-ring 50B, the gear 20B can be reliably prevented from falling off the output shaft due to movement in the radial direction of the output shaft.

Further, in the above-mentioned embodiment, the shaft portion 201 is fitted into the opening portion 321 via the C-ring 50, and the front end of the output shaft 12A is fitted into the opening portion 321A of the support portion 32A of the mounting frame 30A via the C-ring 50A. The C-ring may be arranged outside. For example, the C-ring may be arranged to abut the supporting portions 32 and 32A from the opposite sides of the supporting portions 32 and 32A from the motor bodies 10 and 10A. The ring is disposed between the gears 20 and 20A and the support portions 32 and 32A. Of course, according to the actual situation, the C-ring can also be omitted.

In addition, in the above-mentioned embodiment, a pair of locking projections as the locking portion are provided on the mounting plate portion, and the locking portion is provided with a protruding portion as the locked portion on the housing, but it is not limited. It is limited to this, a protruding portion may be provided on the mounting plate portion, and a pair of locking projections may be provided on the housing. In addition, the locking portion and the locked portion are not limited to the locking projection and the protruding portion, and can be appropriately set as required. For example, protrusions and holes can also be used as the locking portion and the locked portion.

In addition, in the above-mentioned embodiment, a locking portion is provided on the mounting plate portion, a locked portion is provided on the housing, and the mounting frame is fixed to the housing by the locking portion and the locked portion, but it is not The method of fixing the mounting frame to the housing can be appropriately set as needed. For example, the mounting frame may be fixed to the casing by using screws or the like, and the mounting frame may also be fixed to the casing by using an adhesive or the like. Of course, the above-mentioned locking structure, screws, and adhesives may be freely combined as required. In addition, for example, the locking portion and / or the locked portion may be formed of resin, metal, or the like. In this case, the locking portion may be joined to the locked portion by melting the resin, or the locking portion may be connected to the locked portion by welding. Engaged by the locking portion.

1.1A‧‧‧motor device
10, 10A, 110X‧‧‧ Motor body
11, 11A, 111X, 210X‧‧‧ Housing
111‧‧‧Zhou Bibei
112‧‧‧First Board
113‧‧‧Second Board Division
114‧‧‧ bulkhead
1121, 1141‧‧‧ holes
1122‧‧‧Locked Department
12, 12A, 112X‧‧‧ output shaft
121‧‧‧axis body
122‧‧‧Output shaft gear
13‧‧‧rotor
131‧‧‧ shaft
1311‧‧‧ Gear at the front of the shaft
132‧‧‧Magnet
14‧‧‧ stator
141‧‧‧The first stator core group
142‧‧‧Second stator core group
15‧‧‧Gear Set
151‧‧‧first gear
152‧‧‧Second Gear
153‧‧‧Third gear
154‧‧‧Fourth gear
1511, 1521, 1531, 1541‧‧‧ large diameter gears
1512, 1522, 1532, 1542‧‧‧ small diameter gears
161, 162, 163, 164‧‧‧ shafts
20, 20A, 20B, 110X, 120X‧‧‧ Gear
201‧‧‧ Shaft
202A‧‧‧ Hole
30, 30A‧‧‧Mounting frame
31‧‧‧Mounting Department
311‧‧‧Mounting plate
3111‧‧‧ Calding Department
312‧‧‧Connecting Board
32, 32A, 32B‧‧‧ support
321, 321A‧‧‧ opening
322B‧‧‧through hole
50, 50A, 50B, 150X‧‧‧C-shaped ring
220X‧‧‧ lens barrel
221X‧‧‧Gear barrel side gear
L‧‧‧ axis
L1, L2‧‧‧ center axis
X, Y, Z‧‧‧ directions

FIG. 1A is a perspective view schematically showing a configuration of a motor device according to Embodiment 1 of the present invention. FIG. 1B is an exploded perspective view schematically showing a configuration of the motor device according to the first embodiment of the present invention. FIG. 1C is a plan view schematically showing the configuration of the motor device according to the first embodiment of the present invention. FIG. 1D is a side view schematically showing the configuration of the motor device according to the first embodiment of the present invention. 1E is a side cross-sectional view schematically showing a configuration of a motor body included in the motor device according to the first embodiment of the present invention. 1F is a plan cross-sectional view schematically showing a configuration of a motor body included in the motor device according to the first embodiment of the present invention. FIG. 1G is a developed view of a gear set schematically showing a structure of a motor body included in the motor device according to the first embodiment of the present invention. FIG. 2A is a perspective view schematically showing a configuration of a motor device according to a second embodiment of the present invention. 2B is a plan view schematically showing a configuration of a motor device according to a second embodiment of the present invention. 2C is a side view schematically showing a configuration of a motor device according to a second embodiment of the present invention. FIG. 3A is a perspective view schematically showing a configuration of a motor device according to a modification of the present invention. 3B is a plan view schematically showing a configuration of a motor device according to a modification of the present invention. FIG. 4 is a perspective view schematically showing a configuration of a conventional motor device. FIG. 5 is a plan view schematically showing a configuration of a projector to which the conventional motor device is mounted.

10‧‧‧Motor body

11‧‧‧ shell

1122‧‧‧Locked Department

12‧‧‧ output shaft

20‧‧‧ Gear

30‧‧‧Mounting frame

31‧‧‧Mounting Department

311‧‧‧Mounting plate

3111‧‧‧ Calding Department

312‧‧‧Connecting Board

32‧‧‧ support

L‧‧‧ axis

X, Y, Z‧‧‧ directions

Claims (14)

A motor device includes a motor body having a housing and an output shaft protruding from the housing; and a gear connected to a portion of the output shaft protruding from the housing, wherein the motor The device further includes: a mounting frame having a mounting portion and a support portion connected to the mounting portion, wherein the mounting portion is mounted on the housing, and the support portion is located in an axial direction of the output shaft A side of the gear opposite to the housing, and a side of the gear opposite to the housing is supported. The motor device according to claim 1, wherein the gear is mounted on the output shaft such that a front end of the output shaft protrudes from the gear, and the support portion is configured to pass through the front end of the output shaft. A support is provided to support an opposite side of the gear from the housing. The motor device according to item 2 of the scope of patent application, wherein the support portion has an opening portion that opens toward one side in a direction perpendicular to the axial direction of the output shaft, and is capable of being supplied to the output shaft. The front end of is inserted from one side in a direction perpendicular to the axial direction of the output shaft. The motor device according to claim 3, wherein a front end of the output shaft is fitted into the opening portion via a C-ring, and the C-ring surrounds the front end of the output shaft together with the opening portion. The entire perimeter. The motor device according to item 2 of the scope of patent application, wherein the support portion has a through hole penetrating the support portion in an axial direction of the output shaft, and the output shaft is inserted into the through hole. The motor device according to item 1 of the scope of patent application, wherein the gear is provided with a shaft portion that protrudes from an end surface of the gear on the side opposite to the housing, and the gear rests One side of the housing is connected to the output shaft, and the support portion supports the shaft portion to support the gear on the opposite side of the housing. The motor device according to item 6 of the patent application scope, wherein an engagement portion is provided on the gear, and the gear is connected to the output shaft by engaging the engagement portion with a front end of the output shaft. . The motor device according to item 6 of the patent application scope, wherein the support portion has an opening portion that opens toward one side in a direction perpendicular to the axial direction of the output shaft, and is capable of being supplied to the shaft portion It is fitted from one side in a direction perpendicular to the axial direction of the output shaft. The motor device according to claim 8, wherein the shaft portion is fitted into the opening portion via a C-ring, and the C-ring and the opening portion surround the entire peripheral surface of the shaft portion. . The motor device according to item 6 of the scope of patent application, wherein the support portion has a through hole penetrating the support portion in an axial direction of the output shaft, and the shaft portion is inserted into the through hole. The motor device according to item 1 of the patent application scope, wherein the mounting portion includes a mounting plate portion and a connection plate portion, the mounting plate portion is mounted on the housing, and the connection plate portion connects the mounting plate portion And connected to the supporting portion. The motor device according to item 11 of the scope of patent application, wherein a locking portion is provided on the mounting plate portion, a locked portion is provided on the housing, and the mounting frame is connected to the mounting frame through the locking portion. The locked portion is locked and fixed to the casing. The motor device according to claim 12, wherein the locked portion is a protruding portion extending from the housing in a direction perpendicular to the axial direction of the output shaft, and the locking portion is directed toward The pair of locking projections protruding from the shell side clamp the protruding portions from both sides. The motor device according to claim 1, wherein a rotor, a stator, and a gear set that transmits rotation of the rotor to the output shaft are housed in the housing.