JP2019221098A - Motor device - Google Patents

Abstract

To provide a motor device which can maintain fixing power of a case body fixing a motor for a long period in a case where the motor is fixed by the case body.SOLUTION: A motor device 1 includes: a motor 5; a transmission mechanism 6 which transmits driving force of the motor 5; and a case body 2 which houses the motor 5 and the transmission mechanism 6 while positioning the motor 5 and the transmission mechanism 6. The case body 2 has: a first case body 3 which holds the motor; and a second case body 4 which is disposed so as to engage with the first case body 3 and cover the motor 5. The first case body 3 is formed with multiple contact parts 320 which contact with the motor 5 from a radial direction, and the second case body 4 is formed with a support part 420 which contacts with the contact part 320 from the side of the contact part 320, which is opposite to the side contacting with the motor 5, to support the contact part 320.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a motor device.

  Conventionally, a motor, a transmission mechanism that transmits the driving force of the motor, an external output shaft that outputs the driving force of the motor via the transmission mechanism, and a case body that houses the motor, the transmission mechanism, and the external output shaft, 2. Description of the Related Art There is known a motor device including (for example, see Patent Document 1).

  In the motor device disclosed in Patent Literature 1, when the motor is driven with respect to the case body, it is necessary to securely fix the motor to the case body so that vibration and noise are not generated. Therefore, a plurality of contact portions are formed on the case body along the outer peripheral surface of the motor case. A protrusion protruding toward the motor is formed on the bottom side of the motor at the contact portion, and the protrusion presses the outer peripheral surface of the motor case to fix the motor.

JP 2017-60284 A

  However, in the protrusion of the contact portion described in Patent Document 1, there is a possibility that so-called creep deformation, which is caused by a reaction force from the motor case with respect to pressing of the protrusion due to long-term use, may occur. When the protrusion is creep-deformed, the force by which the protrusion presses the motor is reduced, so that the force for fixing the motor is reduced. For this reason, when the motor is driven, there is a possibility that the motor will be displaced, and eventually generate vibration and noise. The term “creep deformation” as used herein refers to a phenomenon in which a stress continuously acts on an object, so that the distortion of the object increases with time.

  Therefore, an object to be solved by the present invention is to provide a motor device capable of maintaining a fixing force to a motor by a case body for a long time when the motor is fixed by the case body.

  A motor device according to the present invention is a motor device including a motor, a transmission mechanism that transmits a driving force of the motor, and a case body that stores the motor and the transmission mechanism while positioning the motor, wherein the case body Has a first case body that holds a motor, and a second case body that is arranged to engage with the first case body and cover the motor, wherein the first case body includes the first case body, A plurality of contact portions that contact the motor in the radial direction are formed, and the second case body contacts the corresponding contact portion from the side of the contact portion opposite to the side that contacts the motor. And a supporting portion for supporting the contact portion is formed.

  ADVANTAGE OF THE INVENTION According to this invention, the 1st case body in which several contact parts which contact | abut from a radial direction with respect to a motor are contacted with the said contact part from the other side of the contact part with the motor. And a second case body on which a support portion for supporting the contact portion is formed. For this reason, in the motor device according to the present invention, the support portion is formed in the second case body, and the support portion contacts and supports the contact portion, so that the contact portion of the first case body and the contact portion are supported. The motor is held together with the support of the two case bodies, and the case body can maintain the fixing force to the motor for a longer period of time than before.

  In the motor device according to the present invention, the contact portion has flexibility.

  According to the present invention, since the contact portion has flexibility, the motor can be stored in the case body in a state where the contact portion is bent and pressed against the motor. The fixing force of the motor can be increased by pressing the motor by bending the motor in a plurality of directions by the plurality of contact portions and suppressing the bending of the corresponding contact portion by the support portion.

  In the motor device according to the present invention, the first case body has an opposing portion that opposes the motor in the radial direction, and is recessed in the thrust direction between the contact portion and the opposing portion. It is characterized in that a groove is formed.

  According to the present invention, since the groove recessed in the thrust direction is formed between the contact portion and the facing portion, the contact portion is easily bent, and the contact portion is urged against the motor. In this state, the motor can be easily stored in the case body.

  In the motor device according to the present invention, the first case body includes a holding portion that contacts and holds the motor from the thrust direction, and the second case body includes the holding portion. A holding portion for holding the motor is formed from a side opposite to a side contacting the motor.

  According to the present invention, the first case body is provided with a holding portion that contacts and holds the motor in the thrust direction, and the second case body has a holding portion that is in contact with the motor. A holding portion for holding the motor is formed from the opposite side. Therefore, the motor can be fixed in the thrust direction by sandwiching and fixing the motor between the holding portion and the pressing portion.

  The problem to be solved by the present invention is to provide a motor device capable of maintaining a fixing force on a motor by a case body for a long time when the case body fixes the motor.

1 is a perspective view of a motor device according to one embodiment of the present invention. 1 is an exploded perspective view of a motor device according to one embodiment of the present invention. It is a top view of the motor device concerning one example of the present invention, and shows the state where the 2nd case body was removed. FIG. 4 is a cross-sectional view of the motor device according to the embodiment of the present invention, which is cut at a position indicated by a cutting line C in FIG. It is sectional drawing. FIG. 4 is a cross-sectional view of the motor device according to the embodiment of the present invention, which is cut at a position indicated by a cutting line C in FIG. 3 and viewed from the direction of arrow B in a range from arrow B to arrow B; It is sectional drawing. FIG. 2 is an exploded perspective view of a motor in the motor device according to one embodiment of the present invention. It is a perspective view of the 1st case body in the motor device concerning one example of the present invention. It is a top view of the 1st case body in the motor device concerning one example of the present invention. It is a top view showing the vicinity of the contact part of the 1st case body in the motor apparatus which concerns on one Example of this invention. It is a perspective view showing the vicinity of the contact part of the 1st case body in the motor apparatus which concerns on one Example of this invention. It is a perspective view of the 2nd case body in the motor device concerning one example of the present invention. FIG. 12 is a perspective view of a second case body in the motor device according to the embodiment of the present invention, viewed from a different direction from FIG. 11.

Hereinafter, a motor device 1 according to an embodiment of the present invention will be described with reference to the drawings.
In each of the drawings, three directions orthogonal to each other are defined as an X-axis direction, a Y-axis direction, and a Z-axis direction, and the axial direction of the motor 5 corresponds to the Z-axis direction.
FIG. 1 is a perspective view of a motor device 1 according to one embodiment of the present invention. FIG. 2 is an exploded perspective view of the motor device 1 according to the present embodiment. FIG. 3 is a plan view of the motor device 1 according to the present embodiment, and shows a state where the second case body 4 is removed.

(Overall configuration of motor device 1)
The overall configuration of the motor device 1 according to the present embodiment will be briefly described. The motor device 1 includes a motor 5, a transmission mechanism 6 for transmitting the driving force of the motor 5, an external output shaft 631 for outputting the driving force of the motor 5 via the transmission mechanism 6, a motor, a transmission mechanism, and an external output. A shaft 631 and the case body 2 that houses the motor 5, the transmission mechanism 6, and the external output shaft 631 are provided. The external output shaft 631 is connected to driven members such as a louver of an air outlet of an air conditioner and a damper of a water heater or a refrigerator.

(Configuration of motor 5)
Next, the configuration of the motor 5 will be specifically described with reference to FIGS.
FIG. 4 is a cross-sectional view of the motor device 1 according to the present embodiment. The motor device 1 is cut at a position indicated by a cutting line C in FIG. FIG. FIG. 5 is a cross-sectional view of the motor device 1 according to the present embodiment. The motor device 1 is cut at a position indicated by a cutting line C in FIG. FIG. FIG. 6 is an exploded perspective view of the motor 5 in the motor device 1 according to the present embodiment.

  The motor 5 has a stepping motor structure. The motor 5 according to the present embodiment includes a rotor 510 having a shaft 513, a fixed shaft 520 formed at the center of rotation of the shaft 513, a stator 530, and an output-side case portion supporting an output-side end 514 of the shaft 513. 540, and a non-output side case portion 550 that supports the fixed shaft 520 and the stator 530 from the non-output side. As shown in FIG. 6, the output side case portion 540 has a substantially flat plate shape, and the non-output side case portion 550 has a shape having a bottom surface portion 551 and a side surface portion 552.

  The shaft 513 is partially provided so as to protrude from the stator 530 to the output side, and the rotor 510 is provided on the non-output side of the shaft 513. The rotor 510 has a substantially H-shaped cross section cut along a plane passing through the fixed shaft 520, and a permanent magnet 512 in which N poles and S poles are alternately magnetized in the circumferential direction is arranged on the outer peripheral side. . The permanent magnet 512 has a cylindrical shape and is integrally formed with resin (for example, insert molding) so that the outer peripheral surface of the permanent magnet 512 is exposed. Note that the permanent magnet 512 may be fixed to a resin by an adhesive. As shown in the figure, the shaft 513 has an axial hole formed in the axial direction, and a pinion 511 is formed on an outer peripheral surface of a portion protruding from the stator 530 on the output side.

  The rotor 510 is rotatably supported by a fixed shaft 520 supported by a pair of upper and lower support members of the motor 5 (case). A leaf spring (not shown) for urging the rotor 510 upward is disposed between the rotor 510 and the non-output side case portion 550. In the present embodiment, the upper side of the support member is a support plate on which the output side end portion 514 is formed, and the lower side is a non-output side case portion 550 that supports the fixed shaft 520.

  The stator 530 includes a first stator set 531 and a second stator set 532 which are opposed to the outer peripheral surface of the permanent magnet 512 and are arranged so as to overlap in the axial direction (Z-axis direction) of the shaft 513. Although omitted in FIGS. 4 to 6, each of the first stator set 531 and the second stator set 532 has a coil bobbin around which a drive coil is wound. As shown in FIG. 6, the motor 5 is provided with terminal pins 560 for supplying power to the drive coil.

  The motor 5 accommodates the rotor 510 and the stator 530 inside the side surface portion 552 of the non-output side case portion 550, and outputs the output side case portion 540 from the opposite side (output side) to the bottom surface portion 551 of the non-output side case portion 550. Are fixed by swaging to cover the side surface portion 552. A concave portion 553 is formed on the output side of the side surface portion 552 of the non-output side case portion 550, and a convex portion 541 fitted to the concave portion 553 is formed on the output side case portion 540. In this embodiment, the convex portion 541 and the concave portion 553 are formed at three locations in the circumferential direction. By fitting the convex portion 541 into the concave portion 553, the output side case portion 540 is prevented from moving in the circumferential direction with respect to the non-output side case portion 550, and is positioned and fixed. Further, as shown in FIGS. 2 and 4, the protrusion 541 protrudes outward with respect to the side surface 552 in a radial direction orthogonal to the Z-axis direction.

(Configuration of the transmission mechanism 6)
The configuration of the transmission mechanism 6 will be specifically described with reference to FIGS.
The transmission mechanism 6 is a mechanism for transmitting the driving force of the motor 5 to the external output shaft 631. In this embodiment, the gear train is composed of a plurality of gears (first gear 610, second gear 620, and third gear 630) shown in FIGS. 2 and 3 and the like. This is a reduction gear train that reduces the driving force. The driving force of the motor 5 is configured to be transmitted from the first gear 610 meshed with the pinion 511 of the shaft 513 to the third gear 630 having the external output shaft 631 via the second gear 620.

  The first gear 610 is rotatably supported by a first support shaft 571 (see FIG. 2) attached to the motor 5. The second gear 620 is rotatably supported by a second support shaft 330 (see FIG. 2) attached to the first case body 3. The third gear 630 is rotatably supported by a third support shaft 331 (see FIG. 2) attached to the first case body 3.

  The first gear 610 has a gear 611, and the gear 611 meshes with the pinion 511 of the shaft 513. The second gear 620 includes a large-diameter gear 621 and a small-diameter gear 622, and the large-diameter gear 621 meshes with the gear 611 of the first gear 610. The third gear 630 includes an external output shaft 631 and a gear 632, and the gear 632 meshes with the small-diameter gear 622 of the second gear 620.

(Configuration of case body 2)
The case body 2 will be specifically described.
As shown in FIG. 2, the motor device 1 has a case body 2 that houses a motor 5 and a transmission mechanism 6. The case body 2 includes a first case body 3 and a second case body 4 and positions the motor 5. The case body 2 has a first case body 3 that holds the motor 5, and a second case body 4 that is arranged to engage with the first case body 3 and cover the motor 5. In this embodiment, both the first case body 3 and the second case body 4 are made of an ABS (acrylonitrile-butadiene-styrene) resin molded product having heat resistance and abrasion resistance. It should be noted that the present invention is not limited to the ABS resin, and may be, for example, a PBT (polybutylene terephthalate) resin molded product having sliding characteristics (friction and wear) and impact resistance. Further, as shown in FIG. 2, a plurality of convex portions 702 are formed on the side surface portion 360 of the first case body 3. On the other hand, hooks 701 are formed on the side surface portion 460 of the second case body 4 at positions corresponding to the respective protrusions 702 of the first case body 3. The first case body 3 and the second case body 4 are connected by engaging the protrusion 702 and the hook 701 (see FIG. 1).

(Configuration of first case body 3)
The configuration of the first case body 3 will be specifically described with reference to FIGS.
FIG. 7 is a perspective view of the first case body 3 in the motor device 1 of the present embodiment. FIG. 8 is a plan view of the first case body 3 in the motor device 1 of the present embodiment. FIG. 9 is a plan view illustrating the vicinity of the contact portion 320 (the contact portion 320c) of the first case body 3 in the motor device 1 according to the present embodiment. FIG. 10 is a perspective view illustrating the vicinity of the contact portion 320 (the contact portion 320c) of the first case body 3 in the motor device 1 of the present embodiment.

  The first case body 3 has a bottom surface 350 and a side surface 360. An opposing portion 340 that is opposed to the motor 5 in the radial direction is provided around the mounting area of the motor 5 on the bottom surface portion 350. The facing portion 340 has a curved surface corresponding to the outer peripheral shape of the motor 5 so as to guide the outer peripheral side surface of the motor 5. The facing portion 340 is provided with a holding portion 310 of the motor 5 in which the concave portion 311 is formed. The holding portion 310 is formed to extend in the radial direction more than the facing portion 340 to a height covering the outer peripheral surface of the motor 5. In this embodiment, three holding units 310 are provided: a holding unit 310a, a holding unit 310b, and a holding unit 310c. The holding units 310a, 310b, and 310c hold the motor 5 by fitting the respective protrusions 541 of the motor 5 from the thrust direction along the Z-axis direction. Thereby, the motor 5 and the output side case portion 540 are positioned and fixed in the circumferential direction and the radial direction with respect to the first case body 3.

  Further, the facing portion 340 is provided with a plurality of contact portions 320 that contact the side surface portion 552 of the motor 5 in the radial direction. The contact portion 320 includes an inner protrusion 321, an outer protrusion 322, and a reinforcing portion 324 as shown in FIG. 9 and the like. The inner protruding portion 321 protrudes on the inner peripheral surface side of the facing portion 340, and has a semi-cylindrical cross section. The inner protruding portion 321 is on the bottom surface portion 350 side, and is formed so as to extend in the radial direction to approximately half of the side surface portion 552 of the motor 5. The inner protrusion 321 is in contact with the motor 5 from the radial direction. The inner protrusion 321 presses the outer peripheral surface of the non-output side case 550 of the motor 5 to fix the motor 5 while positioning it in the thrust direction. An outer protrusion 322 is formed on the outer side opposite to the inner protrusion 321. In the present embodiment, the outer projection 322 projects outward in the thrust direction similarly to the inner projection 321, and has a semi-cylindrical cross section. In the vicinity of the inner protrusion 321, similarly to the facing portion 340, a curved reinforcing portion 324 corresponding to the outer peripheral shape of the motor 5 is formed. Further, the outer protrusion 322 and the reinforcing portion 324 reinforce the inner protrusion 321 and receive a reaction force from the motor 5. In the present embodiment, three contact portions 320 are provided: a contact portion 320a, a contact portion 320b, and a contact portion 320c. And the contact part 320c is integrally formed with the holding part 310c.

  As shown in FIG. 10 and the like, the contact portion 320 has grooves 323 that are recessed in the thrust direction on both sides in the circumferential direction. Thereby, the contact portion 320 is configured to have more flexibility. That is, by making the contact portion 320 flexible, the motor 5 can be stored in the case body 2 in a state where the contact portion 320 is bent and urged against the motor 5. Become.

  A rib 370 for reinforcing the contact portion 320 is formed on the bottom surface portion 350. Specifically, as shown in FIG. 8, two cylindrical annular ribs 373 and 372 are formed concentrically with the contact portion 320 and the facing portion 340 in plan view. More specifically, an inner annular rib 373 is formed near the center, and an outer annular rib 372 is formed outside the inner annular rib 373. Further, a plate-shaped linear rib 371a is formed from the inner annular rib 373 to the inner protrusion 321 of the contact portion 320a. Similarly, a plate-shaped linear rib 371b connected from the inner annular rib 373 to the inner protrusion 321 of the contact portion 320b is formed, and connected from the inner annular rib 373 to the inner protrusion 321 of the contact portion 320c. A plate-shaped linear rib 371c is formed. Further, as shown in FIGS. 7 and 8, plate-shaped linear ribs 374 are formed from the facing portion 340 to the non-output side support portion 332 of the second support shaft 330. A plate-shaped linear rib 375 connected from the non-output-side support portion 332 to the non-output-side support portion 333 of the third support shaft 331 is formed as shown by. The linear rib 371c reinforces the non-output side support portion 332, and the linear rib 375 reinforces the non-output side support portion 333.

(Configuration of the second case body 4)
The configuration of the second case body 4 will be specifically described with reference to FIGS. 11 and 12.
FIG. 11 is a perspective view of the second case body 4 in the motor device 1 according to the present embodiment. FIG. 12 is a perspective view of the second case body 4 of the motor device 1 according to the present embodiment as viewed from a different direction from FIG.

  The second case body 4 has an output surface portion 450 having a through-hole 490 of the external output shaft 631, and a side surface portion 460. The output surface portion 450 is provided with a pressing portion 410 for pressing the output side case portion 540 (specifically, the convex portion 541) of the motor 5 from the output side in the thrust direction. The pressing portion 410 includes two pressing portions 410a and 410b. The pressing portion 410 presses the output side case portion 540 of the motor 5 so as to prevent the motor 5 from being displaced in the thrust direction with respect to the case body 2 when the motor 5 is driven.

  The output surface portion 450 includes a support portion 420 that contacts the contact portion 320 from the side of the contact portion 320 of the first case body 3 opposite to the side that contacts the motor 5 and supports the contact portion 320 in the radial direction. Is provided. The support portion 420 includes three support portions 420a, 420b, and 420c. And the support part 420a is integrally formed with the press part 410a. The support portion 420 has a plate shape. As shown in FIGS. 4 and 5, the distal end of the support portion 420 is formed to have a length that can be supported at least by contacting the outer peripheral side surface of the outer protrusion 322 of the contact portion 320. Have been. That is, the support portion 420 is in contact with the outer peripheral side surface of the outer protrusion 322 to support the contact portion 320. In the present embodiment, the support portion 420 has a plate shape, but may have a curved shape corresponding to the outer peripheral shape of the motor 5, for example, like the facing portion 340. Further, the width of the support portion 420 in the circumferential direction is not particularly limited, but in the present embodiment, the width of the support portion 420 and the width of the contact portion 320 are substantially the same. Each of the support portions 420a, 420b, and 420c has plate-like reinforcing ribs 421 that extend to the opposite side to the side that comes into contact with the contact portion 320 on both sides.

  On the output surface portion 450, an output side support portion 491 of the fixed shaft 520, an output side support portion 492 of the first support shaft 571, and an output side support portion 493 of the second support shaft 330 are formed.

(Fixed configuration of motor 5 by case body 2)
The fixing structure of the motor 5 by the case body 2 will be specifically described with reference to FIGS.

  As described above, the motor 5 has the convex portion 541, and the convex portion 541 protrudes outward in the radial direction with respect to the side surface portion 552. In the motor device 1, as shown in FIGS. 4 and 5, the holding portion 310 comes into contact with the convex portion 541 projecting outward in the radial direction with respect to the side surface portion 552 from the non-output side, The holding portion 410 is in contact from the output side. Thus, the motor 5 is fixed to the case body 2 in the thrust direction by sandwiching the convex portion 541 in the thrust direction between the holding portion 310 and the pressing portion 410.

  In the motor device 1, the holding portion 310 that holds the first case body 3 in contact with the motor 5 from the thrust direction is formed, and the holding portion 310 contacts the second case body 4 with the motor 5. The holding portion 410 for holding the motor 5 is formed from the side opposite to the side, and the motor 5 is securely fixed in the thrust direction by holding and holding the motor 5 between the holding portion 310 and the holding portion 410. ing.

  Further, as described above, the contact portion 320 is in radial contact with the side surface portion 552 of the motor 5 in the state of being stored in the first case body 3. Any of the contact portion 320a, the contact portion 320b, and the contact portion 320c of the contact portion 320 contacts the side surface portion 552 of the motor 5 in the radial direction. Further, as shown in FIGS. 4 and 5, the support portion 420 contacts the contact portion 320 from the side of the contact portion 320 opposite to the side that contacts the motor 5, and It is supported in the radial direction. That is, the motor 5 is fixed to the case body 2 by the contact portion 320 and the support portion 420 in the radial direction. In addition, the support part 420a supports the contact part 320a in the radial direction, the support part 420b supports the contact part 320b in the radial direction, and the support part 420c supports the contact part 320c in the radial direction.

  As described above, in the motor device 1, the first case body 3 in which the plurality of contact portions 320 that contact the motor 5 from the radial direction is formed, and the side of the contact portion 320 that contacts the motor 5 A second case body 4 on which a supporting portion 420 for supporting the contact portion 320 by contacting the contact portion 320 from the opposite side is formed. The motor device 1 may be deformed by a reaction force from the output side case portion 540 of the motor 5 with respect to the pressing of the inner projection 321 of the contact portion 320 with a long-term use, so-called creep deformation may occur. . In the motor device 1 according to the present embodiment, the support part 420 is formed on the second case body 4, and the support part 420 contacts and supports the contact part 320. It becomes possible to maintain the fixing force for a longer time than before. For this reason, when the motor 5 is driven, the motor 5 is less likely to be displaced, and it is possible to suppress the occurrence of vibration, noise, and the like. The term “creep deformation” as used herein refers to a phenomenon in which a stress continuously acts on an object, so that the distortion of the object increases with time.

  In the motor device 1 of this embodiment, both the first case body 3 and the second case body 4 are formed of resin. Since the contact portion 320 is also made of resin, the contact portion 320 has flexibility. As described above, by making the contact portion 320 flexible, the motor 5 is brought into the case body in a state where the contact portion 320 is bent and pressed against the motor 5 (biased state). 2 can be stored. Then, like the motor device 1, the motor 5 is bent by a plurality of contact portions 320 in a plurality of directions to press (bias) the motor 5, and the support portion 420 suppresses the bending of the contact portion 320 so that the motor 5 is bent. Can be increased in fixing force. In particular, in the case of a resin, creep deformation is more likely to occur in a high temperature environment or the like than in a metal. However, in the motor device 1, when the motor 5 is driven and the temperature of the contact portion 320 rises when the motor 5 is driven, the contact portion 320 is supported by the support portion 420, so that the motor 5 is conventionally driven. By distributing the load applied to the contact part 320 to the support part 420, the contact part 320 and the support part 420 can hold the motor 5 together.

  Further, as described above, since the groove 323 recessed in the thrust direction is formed between the contact portion 320 and the facing portion 340, the contact portion 320 is easily bent, and the contact with the motor 5 is prevented. The configuration is such that the motor 5 can be easily stored in the case body 2 in a state where the contact portion 320 is pressed (biased).

  In addition, as shown in FIGS. 4 and 5, the holding portion 310a is formed integrally with the contact portion 320a. For this reason, in the motor device 1, the configuration of the device is simplified. In this embodiment, only the holding portion 310a of the holding portion 310 is formed integrally with the contact portion 320, but the present invention is not limited to such a configuration, and the holding portion 310 and the contact portion 320 May have a plurality of members integrally formed.

  Further, as described above, the contact portion 320 has the inner protrusion 321 (a protrusion-shaped positioning portion extending in the thrust direction) that contacts the motor 5 in the radial direction. It is in contact with the motor 5.

  As described above, the contact portion 320 has the outer protrusion 322 on the side opposite to the side of the contact portion 320 that contacts the motor 5 in the radial direction. The support 420 is formed at a position facing the outer protrusion 322. Specifically, a support portion 420a is formed at a position of the contact portion 320a facing the outer protrusion 322, and a support portion 420b is formed at a position of the contact portion 320b facing the outer protrusion 322. A support part 420c is formed at a position facing the outer projection part 322 of 320c.

  Although the motor device 1 of the present embodiment has the configuration in which the outer protrusion 322 is provided in the contact portion 320 as described above, the present invention is not limited to such a configuration. For example, a configuration may be adopted in which a protrusion is provided on the side of the support portion 420 where the motor 5 is arranged, and the contact portion 320 is formed at a position facing the protrusion.

  In addition, as shown in FIGS. 4 and 5 and FIGS. 11 and 12, the pressing portion 410a is formed integrally with the supporting portion 420a. For this reason, in the motor device 1 of the present embodiment, the configuration of the device is simplified. In the present embodiment, only the pressing portion 410a of the pressing portion 410 is formed integrally with the supporting portion 420. However, the present invention is not limited to such a configuration, and the pressing portion 410 and the supporting portion 420 A plurality of integrally formed members may be provided.

  In addition, as shown in FIG. 4 and FIG. 5 and FIG. 11 and FIG. 12, in the support portion 420 of the present embodiment, each of the support portions 420a, 420b, and 420c has the reinforcing rib 421. Have. For this reason, the deformation of the support portion 420 can be suppressed.

  As shown in FIGS. 4 and 5, in the motor device 1 of the present embodiment, when the motor 5 is fixed by the case body 2, the bottom portion 350 of the first case body 3 The gap S is formed between the bottom surface 551 and the bottom surface 551.

  The present invention is not limited to the above-described embodiment, and can be realized with various configurations without departing from the spirit thereof. For example, the technical features in the embodiments corresponding to the technical features in each embodiment described in the summary of the invention may be used to solve some or all of the above-described problems, or to provide one of the above-described effects. In order to achieve a part or all, replacement or combination can be appropriately performed.

DESCRIPTION OF SYMBOLS 1 ... Motor device, 2 ... Case body, 3 ... First case body, 4 ... Second case body, 5 ... Motor,
6 transmission mechanism, 310 holding part, 310a holding part, 310b holding part,
310c holding part, 311 concave part, 320 contact part, 320a contact part,
320b ... contact part, 320c ... contact part, 321 ... inner projection part (projection-shaped positioning part),
Reference numeral 322: outer protrusion, 323: groove, 324: reinforcement, 330: second support shaft,
331: third support shaft, 332: anti-output side support portion, 333: anti-output side support portion,
340: facing portion, 350: bottom portion, 360: side portion, 370: rib,
371a: linear rib, 371b: linear rib, 371c: linear rib,
372: outer annular rib, 373: inner annular rib, 374: linear rib,
375: linear rib, 410: holding part, 410a: holding part, 410b: holding part,
420 ... support part, 420a ... support part, 420b ... support part, 420c ... support part,
421: reinforcing ribs, 450: output surface portion, 460: side surface portion, 490: through hole,
510: rotor, 511: pinion, 512: permanent magnet, 513: shaft,
514: output end, 520: fixed shaft, 530: stator, 531: first stator set,
532: second stator set, 540: output side case part, 541: convex part,
550: anti-output side case portion, 551: bottom portion, 552: side portion, 553: concave portion,
560: terminal pin, 610: first gear, 611: gear part, 620: second gear,
621: large-diameter gear portion, 622: small-diameter gear portion, 630: third gear, 631: external output shaft,
632: gear portion, 640: gear portion, 701: hook, 702: convex portion, S: gap

Claims (4)

A motor device, comprising: a motor, a transmission mechanism that transmits a driving force of the motor, and a case body that stores the motor and the transmission mechanism while positioning the motor,
The case body has a first case body that holds a motor, and a second case body that is arranged to cover the motor by engaging with the first case body,
The first case body includes a plurality of contact portions that contact the motor in a radial direction,
A motor, wherein the second case body is provided with a support portion that contacts the corresponding contact portion and supports the corresponding contact portion from the side of the contact portion opposite to the side that contacts the motor. apparatus. The motor device according to claim 1,
The said contact part has flexibility, The motor apparatus characterized by the above-mentioned. In the motor device according to claim 1 or 2,
The first case body has a facing portion facing the motor in a radial direction,
A motor device, wherein a groove recessed in the thrust direction is formed between the contact portion and the facing portion. The motor device according to any one of claims 1 to 3,
The first case body is provided with a holding portion for holding the motor in contact with the motor in a thrust direction,
A motor device, wherein the second case body is provided with a holding portion for holding the motor from a side opposite to a side where the holding portion contacts the motor.

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