Rotary apparatus

Abstract

To downsize a rotary apparatus.SOLUTION: A rotary apparatus has a housing, a motor, a sensor, a plate, and other members. The housing has a first housing and a second housing which are separable. The sensor has a terminal. The plate is fixed to the housing. The other members electrically connect an external connection terminal fixed to the plate, the terminal of the sensor, and the external connection terminal. In a direction from the first housing toward the second housing, a part of the external connection terminal projecting from the plate faces the terminal of the sensor.SELECTED DRAWING: Figure 24

Description

[Technical Field]

[0001] The present invention relates to rotating equipment. [Background technology]

[0002] In rotating devices such as motor-equipped gearboxes, sensors are known for detecting the rotation angle and rotation speed of gears. The detection results of the sensor are output to an external device, for example, via an external connection terminal. To connect the sensor to the external connection terminal, for example, a technique using a bent external connection terminal is known. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 1-99006 Summary of the Invention [Problem to be solved by the invention]

[0004] When a bent external connection terminal is used, it is necessary to secure a space for connecting the external connection terminal and the sensor, which hinders miniaturization of the rotating device.

[0005] One aspect of the present invention is to reduce the size of a rotating device. [Means for solving the problem]

[0006] In one aspect, a rotating device includes a housing, a motor, a sensor, a plate, and other members. The housing has a separable first housing and a second housing. The sensor has a terminal. The plate is fixed to the housing. The other members electrically connect an external connection terminal fixed to the plate, a terminal of the sensor, and the external connection terminal. In a direction from the first housing toward the second housing, a portion of the external connection terminal protruding from the plate faces the terminal of the sensor.

[0007] According to one aspect, the rotating device can be made smaller. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view illustrating an example of a rotating device according to a first embodiment. [Figure 2] FIG. 2 is a plan view of the rotating device according to the first embodiment with the first housing removed. [Figure 3] FIG. 3 is a perspective view illustrating an example of the first housing in the first embodiment. [Figure 4] FIG. 4 is a perspective view illustrating an example of the second housing in the first embodiment. [Figure 5] FIG. 5 is a cross-sectional perspective view showing an example of a housing in the first embodiment. [Figure 6] FIG. 6 is an exploded perspective view showing an example of the motor and the motor housing portion of the second housing in the first embodiment. [Figure 7] FIG. 7 is another exploded perspective view showing an example of the motor and the motor housing portion of the second housing in the first embodiment. [Figure 8] FIG. 8 is an enlarged cross-sectional view showing an example of the second housing in the first embodiment. [Figure 9] FIG. 9 is an enlarged cross-sectional view illustrating the positional relationship between the first end portion and the first wall in the first embodiment. [Figure 10] FIG. 10 is a perspective view showing an example of a first transmission gear in the first embodiment. [Figure 11] FIG. 11 is a cross-sectional perspective view illustrating an example of a rotating device according to the first embodiment. [Figure 12] FIG. 12 is a diagram illustrating an example of a sensor attached to an output gear in the first embodiment. [Figure 13] FIG. 13 is a plan view showing an example of a conductor of the sensor according to the first embodiment. [Figure 14]FIG. 14 is an enlarged cross-sectional view showing an example of a conductor of the sensor according to the first embodiment. [Figure 15] FIG. 15 is another enlarged cross-sectional view showing an example of a conductor of the sensor according to the first embodiment. [Figure 16] FIG. 16 is a perspective view illustrating an example of a rotating device according to the second embodiment. [Figure 17] FIG. 17 is an exploded perspective view illustrating an example of a rotating device according to the second embodiment. [Figure 18] FIG. 18 is a partial cross-sectional perspective view showing an example of the second housing in the second embodiment. [Figure 19] FIG. 19 is a perspective view showing an example of the internal structure of a rotating device according to the second embodiment. [Figure 20] FIG. 20 is a diagram showing an example of an assembly process of the internal structure in the second embodiment. [Figure 21] FIG. 21 is a diagram showing an example of a sensor attached to an output gear in the second embodiment. [Figure 22] FIG. 22 is a plan view showing an example of a conductor of the sensor according to the second embodiment. [Figure 23] FIG. 23 is an enlarged cross-sectional view showing an example of a conductor of the sensor according to the second embodiment. [Figure 24] FIG. 24 is a side cross-sectional view showing an example of a rotating device according to the second embodiment. [Figure 25] FIG. 25 is another cross-sectional side view showing an example of the rotating device according to the second embodiment. [Figure 26] FIG. 26 is a perspective view illustrating an example of a separation step of the housing in the second embodiment. [Figure 27] FIG. 27 is a cross-sectional perspective view showing an example of a separation step of the housing in the second embodiment. [Figure 28] FIG. 28 is a side cross-sectional view showing an example of a disassembly process of the housing in the second embodiment. [Figure 29] FIG. 29 is another cross-sectional side view showing an example of a disassembly process of the housing in the second embodiment. [Figure 30] FIG. 30 is a cross-sectional perspective view showing an example of a housing after separation in the second embodiment. [Figure 31] FIG. 31 is a perspective view showing an example of a first transmission gear in the first modified example. [Figure 32] FIG. 32 is a plan view showing an example of a conductor of a sensor in the second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] The rotating device disclosed in the present application will be described in detail below with reference to the drawings. Note that the dimensional relationships and ratios of elements in the drawings may differ from reality. The drawings may also include portions where the dimensional relationships and ratios differ. To make the description easier to understand, each drawing may illustrate a coordinate system in which the direction in which a rotation shaft 31 of a motor 3 (described later) extends is the X-axis direction, and the direction in which an output shaft 51 (described later) extends, which is perpendicular to the rotation shaft 31, is the Z-axis direction. Note that the same components are designated by the same reference numerals throughout the description of the embodiments.

[0010] [First embodiment] First, a rotating device according to a first embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a perspective view illustrating an example of the rotating device according to the first embodiment. FIG. 2 is a plan view of the rotating device according to the first embodiment with the first housing removed. FIG. 3 is a perspective view illustrating an example of the first housing according to the first embodiment. FIG. 4 is a perspective view illustrating an example of the second housing according to the first embodiment. FIG. 5 is a cross-sectional perspective view illustrating an example of the housing according to the first embodiment. FIG. 5 shows a cross section taken along plane S1 in FIG. 1. Note that FIG. 5 illustrates a state in which the first housing 21 and the second housing 22 are coupled together, and does not illustrate the internal structure of the rotating device 1 shown in FIG. 2. Note that in each drawing, detailed illustration of the internal structure of the housing 2 may be omitted.

[0011] The rotating device 1 according to the first embodiment can be suitably used as an actuator for use in, for example, an air conditioning system for a vehicle, and can control the rotational movement of a louver for controlling the amount of airflow or the like.

[0012] 1 and 5, the housing 2 includes a first housing 21 and a second housing 22 that engages with the first housing 21. The first housing 21 and the second housing 22 face each other in the Z-axis direction. That is, the housing 2 is configured by connecting the first housing 21 having an opening 212 shown in Fig. 3 and the second housing 22 having an opening 222 shown in Fig. 4 in a state where the openings 212 and 222 face each other in the Z-axis direction.

[0013] 2, the rotating device 1 includes therein a motor 3, a plurality of gears (hereinafter referred to as a gear group) 6 that transmit power from the motor 3, a sensor 7 that detects the rotation angle of an output gear 50 included in the gear group 6, and the like. That is, the housing 2 houses the motor 3 and the gear group 6.

[0014] As shown in Fig. 2, the motor 3 in the first embodiment has a rotating shaft 31 and a frame 30 having a first end 330 and a second end 340 extending in the direction of the rotating shaft. The gear group 6 includes a worm 10 attached to the rotating shaft 31 of the motor 3, a first transmission gear 600, a second transmission gear 62, and an output gear 50. Note that instead of the gear group 6, the rotating device 1 may be configured to include a single gear. As shown in Fig. 2, the first transmission gear 600 is located on the positive side in the Y-axis direction relative to the worm 10.

[0015] As shown in Figures 6 and 7, the first end 330 of the motor 3 has a protrusion 331 extending in the direction of the rotation shaft, and the second end 340 has an annular end face (surface) 349 surrounding the rotation shaft 31. Figure 6 is an exploded perspective view showing an example of the motor and the motor accommodating section of the second housing in the first embodiment. Figure 7 is another exploded perspective view showing an example of the motor and the motor accommodating section of the second housing in the first embodiment. Note that the rotation shaft 31 and the worm 10 are not shown in Figure 7. The annular end face 349 of the second end 340 is formed radially outward of the protrusion 342 through which the rotation shaft 31 is inserted.

[0016] As shown in FIG. 5, the first housing 21 has a surface 210 that forms the top surface of the housing 2 and a side wall 211 provided on the outer periphery of the surface 210. An opening 212 is surrounded by the side wall 211. On the other hand, as shown in FIG. 5, the second housing 22 has a surface 220 that forms the bottom surface of the housing 2 and a side wall 221 provided on the outer periphery of the surface 220. The opening 222 is surrounded by the side wall 221. As shown in FIG. 3, the opening 212 is formed with a housing section 250 that houses the motor 3 shown in FIG. 2, and the opening 222 is formed with a housing section 500 as shown in FIG. 4. The housing 2 is made of an elastic or deformable resin material, such as polypropylene, polyethylene terephthalate, ABS, or polycarbonate.

[0017] 4, the accommodation section 500 of the second housing 22 includes a first wall 530, a second wall 540, and a side wall 550. The side wall 550 extends in the X-axis direction and is formed so as to cover the motor 3 from the negative side in the Z-axis direction. The first wall 530 and the second wall 540 extend in the Z-axis direction, i.e., in a direction intersecting with the side wall 550.

[0018] 7 and 8, in the rotation axis direction, first wall 530 has a rib (hereinafter referred to as a triangular rib) 538 that contacts protrusion 331 of frame 30, and second wall 540 has protrusion 549 that contacts an annular end face (surface) 349 of frame 30. FIG. 8 is an enlarged cross-sectional view showing an example of the second housing in the first embodiment. FIG. 8 shows a cross section of second housing 22 cut along plane S2 in FIG. 1. Note that triangular rib 538 is an example of a protrusion that the first wall has, and protrusion 549 is an example of a protrusion that the second wall has.

[0019] As shown in FIG. 8 , the triangular rib 538 is formed in a recess 531 in the first wall 530, protruding from the side wall 550 by a width W1 toward the positive side of the Z axis. In this case, as shown in FIG. 9 , the other portion 534 of the first wall 530 is located on the motor 3 side relative to the recess 531 of the first wall 530 having the triangular rib 538 in the rotation axis direction. FIG. 9 is an enlarged cross-sectional view illustrating the positional relationship between the first end portion and the first wall in the first embodiment. FIG. 9 shows a cross section cut along plane S2 in FIG. 1 . The recess 531 is an example of a portion of the first wall. With this configuration, a narrow space is formed between the other portion 534 of the first wall 530 and the first end 330 of the motor 3, thereby suppressing vibration propagation even if the first end 330 of the motor 3 comes into contact with the other portion 534 of the first wall 530. Furthermore, narrowing the space increases the rigidity of the side portion of housing 2 that constitutes other portion 534 of first wall 530, thereby suppressing the propagation of vibrations and reducing dead space. Similarly, in second wall 540, protrusion 549 is formed in protrusion (hereinafter referred to as upright portion) 546 that protrudes from side wall 550 in the positive direction along the Z axis, as shown in FIG.

[0020] As shown in Fig. 8, triangular rib 538 protrudes in the negative direction along the X axis from surface 531a of recess 531 that is parallel to protrusion 331 of frame 30. Furthermore, as shown in Fig. 6, protrusion 549 protrudes in the positive direction along the X axis from upright portion 546. Note that the portion of first wall 530 other than recess 531 may be referred to as bottom 534, and the portion of second wall 540 other than upright portion 546 may be referred to as bottom 544.

[0021] 6, the first end 330 and the second end 340 are formed in a direction intersecting with the outer peripheral side surface 350 of the frame 30. In the first embodiment, the end of the rotating shaft 31 on the positive side in the X-axis direction is supported by a protruding portion 331 of the frame 30 shown in FIG. 6, and the end of the rotating shaft 31 on the negative side in the X-axis direction protrudes from a protruding portion 342 of the second end 340 of the frame 30 and is housed in the worm 10.

[0022] The end of the worm 10 on the negative side in the X-axis direction may be configured to come into contact with a recess 260 formed in the second housing 22, as shown in Fig. 6. In this case, the first housing 21 may have a notch 279 formed as a recess at a position opposite the recess 260 in the Z-axis direction, as shown in Fig. 3.

[0023] As shown in Fig. 6, the first end 330 of the frame 30 of the motor 3 has an annular end surface 332 surrounding a protruding portion 331. A pair of terminals 36 is formed on the annular end surface 332 so as to protrude in the positive direction along the X axis. The pair of terminals 36 is supported by second protruding portions 336 formed on the annular end surface 332. As will be described later, the pair of terminals 36 are electrically connected to terminals 4d and 4e, respectively, via an FPC 8 shown in Fig. 2.

[0024] In this case, as shown in FIG. 9 , a gap G1 exists between the annular end surface 332 of the first end 330 of the frame 30 of the motor 3 and the first wall 530. This configuration prevents contact between the second protrusion 336, the pair of terminals 36, and the FPC 8 and the first wall 530. An inclined surface 539 is formed on the surface of the first wall 530. This inclined surface 539 is inclined from the first housing 21 toward the second housing 22 so that the distance between the first housing 21 and the inclined surface is relatively large. A predetermined gap is formed between the inclined surface 539 and a portion of the FPC 8 electrically connected to the terminals 4d and 4e. This configuration prevents contact between the second protrusion 336, the pair of terminals 36, the FPC 8, and the connection portions of the FPC 8 and the terminals 4d and 4e and the first wall 530.

[0025] As shown in FIG. 9 , an elastic member R1 is disposed between the protrusion 331 of the frame 30 and the first wall 530 in the rotational axis direction. The elastic member R1 is, for example, an elastic adhesive that retains a predetermined elasticity even after hardening. The elastic adhesive R1 is an elastic member having an elasticity that allows it to deform more than the first housing 21 and the second housing 22. This prevents rattles from occurring between the motor 3 and the triangular rib 538 of the second housing 22, even if an impact is applied during use of the rotating device 1, due to the holding force of the elastic adhesive R1. Furthermore, the protrusion 331 of the motor 3 is pressed against the triangular rib 538, which allows the motor 3 to be easily fixed in place during application of the elastic adhesive R1 and until the elastic adhesive R1 hardens. The shape of the elastic member R1 may be transferred to, for example, the shape of the triangular rib 538.

[0026] 8, in the recess 531 of the first wall 530, surfaces 531b and 531c intersecting with the surface 531a may be formed to surround the protruding portion 331 of the frame 30 in the Y-axis direction. When the recess 531 has a shape that surrounds the protruding portion 331 of the frame 30, the elastic adhesive R1 is prevented from leaking out. When the recess 531 has a shape that surrounds the protruding portion 331 of the frame 30, the deformed elastic adhesive R1 is prevented from spilling out of the recess 531.

[0027] In the first embodiment, a protrusion 549 formed at a position axially opposite the annular end face 349 of the frame 30 supports the radially outer portion of the frame 30 from the negative side of the X axis. In this case, the radially inner portion of the first end 330 of the frame 30 is supported by the first wall 530, and the radially outer portion of the second end 340 is supported by the second wall 540. This allows the motor 3 to be supported more stably.

[0028] In this case, in the rotating device 1 according to the first embodiment, the motor 3 is supported by the housing so as to be partially displaceable. As shown in FIG. 9 , for example, the motor 3 may be in contact with the first wall 530 only at the triangular rib 538 and indirectly supported by the first wall 530 via the elastic member R1. That is, the motor 3 has a structure in which it is substantially floating relative to the first wall 530, a so-called floating support structure. In this case, a gap G1 is formed between the annular end surface 332 of the frame 30 and the bottom portion 534 of the first wall 530 of the second housing 22. This configuration can suppress noise and vibration. Furthermore, the second protrusion 336 of the motor 3 is prevented from contacting the first wall 530 of the second housing 22.

[0029] 8, the triangular rib 538 formed on the first wall 530 may have an apex 538a in the rotation axis direction. In this case, the apex 538a may be configured to have a shape that is crushed and deformed by being pressed by the protrusion 331 of the frame 30 of the motor 3 when the motor 3 is housed in the second housing 22. With this configuration, the backlash between the motor 3 and the second housing 22 can be reduced, thereby further suppressing noise and vibration. Note that the protrusion 549 formed on the second wall 540 may also have an apex, similar to the triangular rib 538.

[0030] 2, a gap G2 may be formed between the second end 340 of the motor 3 and the second wall 540 of the second housing 22. In this case, the second end 340 of the frame 30 of the motor 3 may also be structured so as to be indirectly supported by the second housing 22 via an elastic member without being in direct contact with the second wall 540 of the second housing 22.

[0031] Although two triangular ribs 538 are formed in the recess 531 of the first wall 530 in the first embodiment, the number of triangular ribs 538 may be one, or three or more.

[0032] 7, in the first embodiment, of first wall 530, only a portion of recess 531 supporting triangular rib 538 protrudes from bottom 534 in the positive direction along the Z axis. Similarly, as shown in FIG. 6, of second wall 540, protrusion 545 (described later) and upright portion 546 supporting protrusion 549 protrude from bottom 544 in the positive direction along the Z axis. With this configuration, the portion of second housing 22 that protrudes from bottom 534 or 544 in the positive direction along the Z axis can be minimized, thereby making it possible to reduce the weight of second housing 22.

[0033] Note that protrusion 342 of motor 3 may be configured to be sandwiched in the Z-axis direction between, for example, protrusion 545 of second housing 22 shown in Fig. 6 and protrusion 255 of first housing 21 shown in Fig. 3. Also, a portion of outer peripheral side surface 350 of motor 3 may be supported in the Z-axis direction by protrusion 535 shown in Fig. 7, and protrusion 331 may be supported in the Z-axis direction by protrusion 537 shown in Fig. 7.

[0034] Returning to FIG. 2, the rotation of the worm 10 is transmitted to the helical gear 61a of the first transmission gear 600, and is also transmitted to the second transmission gear 62 via a gear 61b that is provided coaxially with the helical gear 61a and has a smaller diameter than the helical gear 61a. The rotation of the second transmission gear 62 is then transmitted to the output gear 50. The output gear 50 is provided with an output shaft 51. The rotation axes of the first transmission gear 600 and the second transmission gear 62 extend in the direction of the output shaft 51 (Z-axis direction) and extend in a direction intersecting the rotation axis direction of the worm 10 (X-axis direction). The output shaft 51 protrudes from the through hole 225 toward the negative side of the Z-axis.

[0035] As shown in Fig. 10, the first transmission gear 600 has a rotating shaft 69 and an annular portion 641 surrounding the rotating shaft 69. Fig. 10 is a perspective view showing an example of the first transmission gear in the first embodiment. As shown in Fig. 10, a surface of the annular portion 641 of the first transmission gear 600 has a plurality of recesses or a plurality of protrusions aligned in the rotation direction of the rotating shaft 69. In the first embodiment, an end surface 630 of the first transmission gear 600 on the bearing side is flat compared to the surface of the annular portion 641. The first transmission gear 600 is an example of a gear.

[0036] 4, the second housing 22 has a bearing 900. As shown in FIG. 11, the first transmission gear 600 is disposed adjacent to the bearing 900 in the Z-axis direction. FIG. 11 is a cross-sectional perspective view showing an example of a rotating device according to the first embodiment. The first transmission gear 600 is disposed adjacent to a recess 299 formed in the first housing 21 shown in FIG. 3 in the Z-axis direction. The bearing 900 rotatably supports the rotation shaft 69 of the first transmission gear 600. As shown in FIG. 4, the bearing 900 includes a surface 931 on which recesses and projections are formed, an outer peripheral surface 940, and a recess 990 that supports the rotation shaft 69. In the first embodiment, the outer peripheral surface 940 is flat compared to the surface of the annular portion 641. The recess 299 of the first housing 21 rotatably supports the rotation shaft 69 on the positive side of the Z-axis.

[0037] 10, the rotating device 1 according to the first embodiment may include a viscous fluid V1. The viscous fluid V1 is, for example, an elastic fluid such as grease. As shown in FIG. 11, the viscous fluid V1 is in contact with the surface of the annular portion 641 of the first transmission gear 600 and the surface 931 of the bearing 900 in the direction of the rotation axis or the radial direction. As shown in FIG. 11, the viscous fluid V1 according to the first embodiment is disposed in a gap G3 between the annular portion 641 of the first transmission gear 600, on which the irregularities are formed, and the outer peripheral surface 940 of the bearing 900. That is, in the direction of the rotation axis or the radial direction, the surface of the annular portion 641 of the first transmission gear 600 and the surface 940 of the bearing 900 are spaced apart by a predetermined distance G3. In addition, in the direction of the rotation axis 69, the surface 630 of the annular portion of the gear 600 and the surface 931 of the bearing 900 face each other with the viscous fluid V1 interposed therebetween. A surface 630 of the annular portion of the gear 600 is an end surface on the bearing 900 side and faces the bearing 900 across the fluid. The surface of the bearing 900 is an end surface on the gear 600 side and faces the gear 600 across the fluid. In this case, even if, for example, the surface 940 of the bearing 900 also has irregularities, the surface of the annular portion 641 of the first transmission gear 600 and the surface 940 of the bearing 900 are separated by a predetermined gap and are not fitted together. Furthermore, as shown in FIG. 11 , the viscous fluid V1 is also disposed in a gap G4 between the surface 931 of the bearing 900 and the end surface 630 of the first transmission gear 600 in the Z-axis direction.

[0038] Furthermore, the viscous fluid V1 has viscous resistance against the surface 641 of the rotating first transmission gear 600. The viscous resistance of the fluid V1 can suppress fluctuations in the rotational speed (rotational force) of the gear. The fluid V1 with viscous resistance has resistance according to the speed at which the fluid V1 deforms. In this embodiment, the fluid V1 has a shape that covers the surface 641 having concaves or convexes, for example, the fluid V1 has an annular shape. When the first transmission gear 600 rotates, the fluid V1 is sheared. A predetermined amount of energy is lost from the sheared fluid V1, and fluctuations in the rotational speed (rotational force) of the first transmission gear 600 are suppressed. Suppressing fluctuations in the rotational speed (rotational force) of the first transmission gear 600 can suppress the occurrence of vibrations and abnormal sounds.

[0039] In this way, the rotation of the motor 3 is reduced at a predetermined reduction ratio and output from the output shaft 51 to the outside. The rotation angle of this output gear 50 is detected by the sensor 7. As shown in FIG. 12, the sensor 7 has a sensor housing 70, a substrate 700, and a brush 750. FIG. 12 is a diagram showing an example of a sensor attached to the output gear in the first embodiment. As shown in FIG. 12, the sensor 7 is disposed on the positive side of the Z axis with respect to the output gear 50. Note that the substrate 700 and brush 750 of the sensor 7, shown by solid lines in FIG. 12, are covered by the sensor housing 70, shown by dashed lines, and are not actually visible.

[0040] The sensor 7 has three terminals 78a to 78c. The terminals 78a to 78c of the sensor 7 are connected to the terminals 4a to 4c via lands 87a to 87c and bent portions 81a to 81c of the FPC 8 shown in FIG. 2, respectively. As a result, information on the rotation angle of the output gear 50 detected by the sensor 7 is transmitted to the outside via, for example, the terminal group 4 shown in FIG. 2. The terminal group 4 is inserted into the plate 40. The plate 40 is sandwiched in the Z-axis direction between the support portion 254 of the first housing 21 shown in FIG. 3 and the support portion 264 of the second housing 22 shown in FIG. 4. Note that the five terminals of the terminal group 4 may be referred to as terminals 4a to 4e when they need to be individually identified.

[0041] As shown in Fig. 13, the substrate 700 of the sensor 7 has a first conductor 710 and a second conductor 720 extending in the circumferential direction, and a third conductor 730 connecting the first conductor 710 to the outside. Fig. 13 is a plan view showing an example of the conductors of the sensor in the first embodiment. As shown in Fig. 13, the first conductor 710 is located inside the second conductor 720 in the radial direction. The third conductor 730 extends in the radial direction. The second conductor 720 is a so-called resistor formed of a conductor having a resistance value higher than, for example, the first conductor 710 and the third conductor 730.

[0042] As shown in FIG. 13, the first conductor 710 has a closed annular shape, and the second conductor 720 has an open shape surrounding the first conductor 710 and has two ends 721 and 722. The two ends 721 and 722 of the second conductor 720 extend radially. As shown in FIG. 12, one end 721 of the second conductor 720 is connected to a terminal 78c, and the other end 722 is connected to another terminal 78a. The third conductor 730 is connected to a terminal 78b. In this case, the third conductor 730 and the two ends 721 and 722 of the second conductor 720 extend in the same direction, for example, the positive direction along the X axis.

[0043] As shown in FIGS. 14 and 15 , a first conductor 710 and a second conductor 720 are stacked on a third conductor 730. FIG. 14 is an enlarged cross-sectional view showing an example of the conductor of the sensor according to the first embodiment. FIG. 15 is another enlarged cross-sectional view showing an example of the conductor of the sensor according to the first embodiment. FIG. 14 shows a cross-section taken along line II in FIG. 13 . FIG. 15 shows a cross-section taken along line JJ in FIG. 13 . Note that, as shown in FIG. 13 , the first conductor 710 is disposed inside the second conductor 720, and the entire first conductor 710 is located a predetermined distance away from the entire second conductor 720 in the radial direction, and the first conductor 710 and the second conductor 720 do not overlap each other.

[0044] 14, a hole 719 is formed that penetrates the first conductor 710 and the third conductor 730 in the axial direction, and the first conductor 710 and the third conductor 730 are electrically connected via a conductive member S that covers the hole 719. The conductive member S is a conductive member such as solder. An insulating member 790 may be disposed between the first conductor 710 and the third conductor 730 in a portion other than the hole 719.

[0045] The brush 750 includes a first brush 761 electrically connected to the first conductor 710 and a second brush 762 electrically connected to the second conductor 720. As shown in FIG. 12, the rotation shaft 751 of the brush 750 of the sensor 7 rotates in conjunction with the output shaft 51. In this case, the resistance value (voltage) detected by the brush 750 changes depending on the contact position of the contact point of the second conductor 720 (the rotation angle of the brush 750). The rotation angle of the output gear 50 is detected based on this change in resistance value.

[0046] 13, a part of the third conductor 730 is located in the circumferential direction between two ends 721 and 722 of the second conductor 720. In this case, as shown in Fig. 13, a part (both ends) of the third conductor 730 in the circumferential direction is covered by the pair of ends 721 and 722 of the second conductor 720 and is not visible. Note that an insulating member may also be disposed in the gap G5 between the second conductor 720 and the third conductor 730.

[0047] 15 , in a gap G6 between both circumferential ends of the second conductor 720 of the sensor 7, the brush 750 cannot detect the resistance value (the potential difference between the first conductor 710 and the second conductor 720). For example, if an end of the first conductor 710 or the third conductor 730 is disposed between a pair of circumferential ends 721 and 722 of the second conductor 720, the gap G6 becomes large. On the other hand, in the first embodiment, the third conductor 730 is formed not on the same plane but at a position overlapping the first conductor 710 and the second conductor 720 in a top view, thereby reducing the gap G6. This reduces the area where the resistance value (potential difference) cannot be detected, thereby expanding the range in which the rotation angle can be detected.

[0048] The sensor 7 may detect not only the rotation angle but also the rotation speed of the output gear 50, or may detect both the rotation angle and the rotation speed. The sensor 7 may also detect the rotation angle or the rotation speed of a gear other than the output gear 50. In the first embodiment, a DC motor is used as the motor 3, but a brushless motor or a stepping motor may also be used. If a brushless motor or a stepping motor is used, the sensor 7 may not be necessary for the rotating device 1.

[0049] 1, in the first embodiment, outwardly protruding pieces (hereinafter referred to as connecting pieces) 93 are formed on both ends of each side edge of the first housing 21 and the second housing 22. The connecting pieces 93 are provided with holes (hereinafter referred to as connecting holes) 94 through which fasteners (not shown) are inserted as predetermined fixing members, and the joined first housing 21 and second housing 22 are firmly connected via the four connecting holes 94 with the predetermined fasteners to form an integrated housing 2.

[0050] 1 to 5, in the first embodiment of the configuration of the housing 2 described above, boss portions 29 are provided at corners of the sidewall portion 211 that forms the outer periphery of the first housing 21, and second through holes 292 are provided at corners of the second housing 22. That is, the first housing 21 has a cylindrical boss portion 29 that protrudes from the surface portion 210 and has a first through hole 291 through which a fastener such as a bolt or a screw can be inserted. The second housing 22 has a second through hole 292 into which the boss portion 29 fits.

[0051] A plurality of boss portions 29 are provided, and a corresponding plurality of second through holes 292 are also provided. The plurality of boss portions 29 are provided at the respective corners of the first housing 21, and the plurality of second through holes 292 are also provided at the respective corners of the second housing 22. In the first embodiment, the surface portion 210 of the first housing 21 and the surface portion 220 of the second housing 22 have a substantially rectangular shape in a plan view, and the boss portions 29 and the second through holes 292 are provided at the respective corners. Note that in the first embodiment, the boss portions 29 and the second through holes 292 are formed at three of the four corners, but this is not limited thereto, and they may be provided at all four corners or at other locations.

[0052] Furthermore, the first housing 21 and the second housing 22 are formed with corresponding extending portions 219 and 229, respectively. The extending portions 219 and 229 protrude toward the positive direction of the X-axis, which in the first embodiment is the direction in which the terminal group 4 extends. These extending portions 219 and 229 are joined together to form the connector portion 209 shown in FIG. 1. The terminal group 4 shown in FIG. 2 is held in this connector portion 209.

[0053] Furthermore, a first hook 240 is provided on the side wall 221 of the second housing 22, and a first protrusion 230 that engages with the first hook 240 is provided on the side wall 211 of the first housing 21. The first protrusion 230 is formed integrally with the outer periphery of the side wall 211 of the first housing 21. The first hook 240 is formed integrally with the side wall 221 of the second housing 22. In the first embodiment, the first protrusion 230 and the first hook 240 are formed on the side wall portions 211 and 221 on the X-axis positive direction side, i.e., on the side on which the extension portion 219 extends. Note that hereinafter, the first protrusion 230 and the first hook 240 may be collectively referred to as a first engagement portion. Note that the hook may be formed on the first housing 21, and the protrusion may be formed on the second housing 22. For example, in the first embodiment, the hook 270 is formed on the first housing 21 as shown in FIG. 3, and the protrusion 280 is formed on the second housing 22 as shown in FIG.

[0054] 3 and 5, the end of side wall portion 211 of first housing 21 on the negative Z-axis direction side is formed with a first opposing surface 215 that protrudes in the negative Z-axis direction and a second opposing surface 217 that is located on the positive Z-axis direction side. In the first embodiment, first opposing surface 215 is formed more inward than second opposing surface 217, i.e., closer to opening 212. Similarly, as shown in FIGS. 4 and 5, the end of side wall portion 221 of second housing 22 on the positive Z-axis direction side is formed with a fourth opposing surface 228 that protrudes in the positive Z-axis direction and a third opposing surface 226 that is located on the negative Z-axis direction side. As shown in FIGS. 4 and 5, third opposing surface 226 is formed more inward than fourth opposing surface 228, i.e., closer to opening 222.

[0055] 5, in the first embodiment, the fourth opposing surface 228 of the second housing 22 is formed at a position facing the second opposing surface 217 of the first housing 21, and the third opposing surface 226 is formed at a position facing the first opposing surface 215. In this configuration, the first opposing surface 215 and the second opposing surface 217 are engaged with the fourth opposing surface 228 and the third opposing surface 226.

[0056] 1 is formed by butting together the first housing 21 and the second housing 22. That is, by engaging the first hook 240 of the second housing 22 with the first protrusion 230 of the first housing 21, the first housing 21 and the second housing 22 are integrated together to form the housing 2 that houses the motor 3, the gear group 6, and the like.

[0057] As described above, the rotating device 1 according to the first embodiment includes a motor 3 having a rotating shaft 31, a frame 30 having a first end 330 and a second end 340 extending in the direction of the rotating shaft, a gear 6, and housings 21 and 22 that accommodate the motor 3 and the gear 6. The first end 330 includes a protruding portion 331 extending in the direction of the rotating shaft, and the second end 340 includes an annular surface 349 that surrounds the rotating shaft. The second housing 22 includes, in the direction of the rotating shaft, a first wall 530 having a triangular rib 538 that contacts the protruding portion 331 of the frame 30, and a second wall 540 having a protruding portion 549 that contacts the annular surface 349 of the frame 30. This configuration reduces the contact surface between the motor 3 and the second housing 22, thereby suppressing noise and vibration.

[0058] The rotating device 1 in the first embodiment includes a gear 600 having a rotating shaft 69 and an annular portion 641 surrounding the rotating shaft 69, a housing 22 having a bearing 900 that rotatably supports the rotating shaft 69 of the gear 600, and a viscous fluid V1. A surface of the annular portion 641 of the gear 600 or a surface 931 of the bearing has a plurality of recesses or a plurality of protrusions aligned in the rotation direction of the rotating shaft 69. The viscous fluid V1 is in contact with the surface of the annular portion 641 of the gear 600 and the surface 931 of the bearing in the direction of the rotating shaft 69 or in the radial direction. With this configuration, the rotating device 1 can be made quieter.

[0059] The sensor 7 of the first embodiment includes a substrate 700 having a first conductor 710 and a second conductor 720 extending in the circumferential direction and a third conductor 730 connecting the first conductor 710 to the outside, a first brush 761 electrically connected to the first conductor 710, and a second brush 762 electrically connected to the second conductor 720. The first conductor 710 is located inside the second conductor 720 in the radial direction. The first conductor 710 has a closed annular shape. The second conductor 720 has an open shape with two ends 721 and 722 surrounding the first conductor 710. The first conductor 710 and the second conductor 720 are stacked on the third conductor 730. The rotating device 1 including the sensor 7 includes a gear 50 whose rotation angle or rotation speed is detected by the sensor 7, a motor 3, and a housing 2. This configuration allows the sensor 7 to expand the rotation angle detection range.

[0060] [Second embodiment] The shapes and structures of the conductor of the sensor 7, the first transmission gear 600, the bearing 900, and the accommodating section 500 shown in the first embodiment are merely examples, and may be structures as shown in the second embodiment. Fig. 16 is a perspective view showing an example of a rotating device according to the second embodiment. Fig. 17 is an exploded perspective view showing an example of a rotating device according to the second embodiment. Fig. 18 is a partially cross-sectional perspective view showing an example of a second housing according to the second embodiment. Fig. 19 is a perspective view showing an example of the internal structure of a rotating device according to the second embodiment. In the following embodiments and modifications, parts that are the same as those shown in the drawings described above will be designated by the same reference numerals, and duplicated explanations will be omitted.

[0061] As shown in FIGS. 16 to 19, the rotating device A1 in the second embodiment differs from the first embodiment in the shapes and configurations of the first housing B21 and the second housing B22. For example, the housing B2 in the second embodiment does not have a boss portion 29, and the positions and shapes of the joint piece B93 and the connecting hole B94 are also different from those of the housing 2 in the first embodiment. Furthermore, as shown in FIGS. 17 and 19, the motor A3 may include, for example, a rectangular frame. Furthermore, as shown in FIGS. 17 and 18, the shapes of the housings B55 and C00, the extensions B19 and B29, the through-hole B25, the openings B212 and B222, the support portions B56 and B60, and the like differ from those of the first embodiment.

[0062] 19, the rotating device A1 in the second embodiment includes a plate F40 fixed to a housing B2, a terminal 4 fixed to the plate F40, terminals H8a to H8c of a sensor H7, and an FPC 800 that electrically connects the terminal 4. The terminal 4 is an example of an external connection terminal, and the FPC 800 is an example of another member. In the following description, when the three terminals H8a to H8c are not to be distinguished from one another, they may be simply referred to as terminal H8.

[0063] 20, the output gear E50 in the second embodiment has a recess 59 cut out by a depth G11 from the positive side to the negative side in the Z axis direction. FIG. 20 is a diagram showing an example of an assembly process of the internal structure in the second embodiment. In this case, as shown in FIGS. 19 and 20, a portion of the sensor H7 in the second embodiment, on the negative side in the Z axis direction, of the thickness T11 of the sensor housing H70, is housed in the recess 59 of the output gear E50. That is, the rotating device A1 in the second embodiment includes the gear E50, and a portion of the sensor H7 is housed in the recess 59 of the gear E50 in the direction from the first housing B21 to the second housing B22.

[0064] In this case, a portion of sensor H7 on the positive side along the X axis, including terminal H8, is located outside outer periphery E1 of gear E50, i.e., on the positive side along the X axis, as shown in FIG. 21. FIG. 21 is a diagram showing an example of a sensor attached to an output gear in the second embodiment. Also, as shown in FIG. 17, plate F40 is located on the positive side along the X axis relative to sensor H7. That is, terminal H8 of sensor H7 is located between outer periphery E1 of gear E50 and plate F40. This configuration allows the internal structure of rotating device A1 to be miniaturized in the X axis and Z axis directions.

[0065] As shown in Figures 21 and 22, the sensor H7 in the second embodiment differs from the sensor 7 in the first embodiment in the shapes of the second conductor H20 and the brush H50. Figure 22 is a plan view showing an example of the conductors of the sensor in the second embodiment. Note that in the second embodiment as well, the substrate H00 and brush H50 of the sensor H7 are covered by the sensor housing H70 shown by the dashed line and are not actually visible.

[0066] 21, the sensor H7 has a terminal H8. As in the first embodiment, the terminals H8a to H8c of the sensor H7 are connected to the terminals 4a to 4c, respectively, via the lands 87a to 87c and the bent portions 88a to 88c of the FPC 800 shown in FIG.

[0067] 22, one end H22 of the second conductor H20 of the substrate H00 of the sensor H7 is located radially inward of the other end H21. That is, of the two ends H21 and H22 of the second conductor H20, the one end H22 is located closer to the first conductor 710 than the other end H21 in the radial direction. The second conductor H20 also has two bent portions H23 and H24.

[0068] In this case, a portion H28 from one end H22 to one bent portion H23 in the circumferential direction is located radially inward compared to a portion H29 from the other bent portion H24 to the other end H21 in the circumferential direction. Furthermore, a change in the resistance value of the portion H28 of the second conductor H20 is detected by the second brush H62 of the brush H50, and a change in the resistance value of the portion H29 is detected by the third brush H63 of the brush H50.

[0069] In the second embodiment, the width W2 of a gap G12 between one end H22 and the other end H21 of the second conductor H20 in the circumferential direction is smaller than the width of the gap G6 shown in FIG. 15, as shown in FIG. 23. FIG. 23 is an enlarged cross-sectional view showing an example of a conductor of a sensor in the second embodiment. FIG. 23 shows a cross section taken along line KK in FIG. 22. With this configuration, the gap G12 can be made smaller than in the first embodiment, and therefore the range of rotation angle detection by either the second brush H62 or the third brush H63 can be expanded.

[0070] 18, in the second embodiment, the bearing Q00 formed in the second housing B22 has unevenness not only on the surface 931 facing the first transmission gear E61 but also on the outer circumferential surface 941. In the second embodiment, too, the viscous fluid V1 is disposed on the surface 931 and the outer circumferential surface 941 of the bearing Q00.

[0071] In this configuration, even if the annular portion 640 of the first transmission gear E61 does not have projections and depressions like the annular portion 641 shown in FIG. 10, the effect of reducing noise can be obtained.

[0072] As shown in Fig. 24, the plate F40 is sandwiched between a support B56 of the first housing B21 and a support B60 of the second housing B22. Fig. 24 is a side cross-sectional view showing an example of a rotating device according to the second embodiment. Fig. 24 shows a cross section taken along line GG in Fig. 16. In this case, as shown in Fig. 24, the terminal H8 of the sensor H7 is located between the outer periphery E1 of the gear E50 and the plate F40 at G15. Note that the support portions B56 and B60 may be recessed portions cut out in the Z-axis direction, for example, as shown in Figs. 17 and 18.

[0073] 21, the plate F40 may have a protrusion F41 on its side. The protrusion F41 of the plate F40 protrudes toward the negative side in the Z-axis direction, i.e., in the direction from the first housing B21 to the second housing B22, and engages with a recess B61 of the second housing B22 as shown in FIG. 25. FIG. 25 is another side cross-sectional view showing an example of a rotating device according to the second embodiment. FIG. 25 shows a cross section taken along line HH in FIG. 16. The recess B61 is an example of a part of the second housing. This configuration can further strengthen the engagement between the plate F40 and the housing B2.

[0074] The protrusion F41 of the plate F40 is located outside (on the negative side of the Y axis) the end of the sensor H7, as shown in Fig. 20. With this configuration, the FPC 800 can be connected with the plate F40 and the sensor H7 arranged on the same plane, as shown in Fig. 20, thereby improving manufacturability.

[0075] In the second embodiment, the bent portions 88a to 88c are bent at only one location, as shown in Figures 24 and 25. With this configuration, the shape and structure of the FPC 800 can be simplified.

[0076] The protrusion F41 may protrude from the second housing B22 toward the first housing B21, i.e., toward the positive side of the Z axis, and engage with a recess formed in the first housing B21. That is, the protrusion F41 of the plate F40 engages with a portion of the first housing B21 or a portion B61 of the second housing B22. The protrusion may be formed on the positive side of the end of the sensor H7 on the positive side of the Y axis, or multiple protrusions may be formed on the plate F40.

[0077] In the second embodiment, the sensor H7 and the plate F40 are adjacent to each other in the X-axis direction, i.e., the longitudinal direction of the terminals 4a to 4e. As shown in Fig. 25, the distance G16 between the sensor H7 and the plate F40 in the X-axis direction is smaller than the distance G7 between the sensor H7 and the plate 40 shown in Fig. 2.

[0078] 24, the portion 4T of the terminal 4 protruding from the plate F40 faces the terminal H8 of the sensor H7 in the Z-axis direction, i.e., the direction from the first housing B21 to the second housing B22. In this case, the terminal 4 is located closer to the first housing B21 than the sensor H7, i.e., on the positive side in the Z-axis direction.

[0079] The housing B2 of the rotating device A1 in the second embodiment has a separable first housing B21 and second housing B22. The housing B2 is disassembled using a jig Z as shown in FIG. 26 after, for example, removing a fastener (not shown) inserted into a hole 94 of a joining piece 93. FIG. 26 is a perspective view showing an example of a process for separating the housings in the second embodiment. FIG. 27 is a cross-sectional perspective view showing an example of a process for separating the housings in the second embodiment. FIG. 27 shows a cross section taken along line DD in FIG. 26.

[0080] 26 and 27, the jig Z includes a first pressing portion Z10 that presses the first housing B21 in the positive direction along the Z axis, and a second pressing portion Z20 that presses the second housing B22 in the negative direction along the Z axis. The first pressing portion Z10 is formed on a bottom surface Z50 of the jig Z, and the second pressing portion Z20 is formed on a top surface Z60 of the jig Z. A hole Z90 is formed in the top surface Z60. For example, as shown in FIG. 26, the jig Z and the rotating device A1 are aligned by inserting a rod-shaped member Z99 inserted through the hole Z90 into a connecting hole B94 of a joint piece B93 of the rotating device A1.

[0081] In this case, the first housing B21 is formed with a protrusion B70 that is pressed by the first pressing portion Z10, and the second housing B22 is formed with a protrusion B80 that is pressed by the second pressing portion Z20. As shown in FIG. 17, a hook B30 and a protrusion B70 are formed on a side wall B211 of the first housing B21 in the second embodiment. The side wall B211 is an example of a side surface, the hook B30 is an example of an engaging portion, and the protrusion B70 is an example of a protrusion. As shown in FIG. 17, a protrusion B40 and a protrusion B80 are formed on a side wall B221 of the second housing B22 in the second embodiment. The side wall B221 is an example of a side surface, the protrusion B40 is an example of an engaged portion, and the protrusion B80 is an example of a protrusion. In the second embodiment, the first housing B21 does not have the first protrusion 230 and has a flat surface, and the second housing B22 does not have the first hook 240 and has a flat surface.

[0082] 16, the protrusion B70 of the first housing B21 and the protrusion B80 of the second housing B22 are adjacent to each other in the circumferential direction of the side wall portions B211 and B221, for example, in the X-axis direction or the Y-axis direction, and are also adjacent to each other in the direction from the first housing B21 to the second housing B22, for example, in the Z-axis direction. That is, the hook B30 of the first housing B21 and the protrusion B80 of the second housing B22 are disposed at adjacent positions in the circumferential direction and in the direction from the first housing B21 to the second housing B22.

[0083] 17, the protrusion B70 of the first housing B21 is adjacent to the hook B30 in the circumferential direction. The protrusion B80 of the second housing B22 is adjacent to the protrusion B40 in the circumferential direction. In this case, as shown in FIG. 17, the protrusion B70 and the hook B30 are adjacent to each other with a distance G13 between them, and the protrusion B80 and the protrusion B40 are adjacent to each other with a distance G14 between them.

[0084] As shown in Fig. 28, in the Z-axis direction, i.e., the direction from the first housing B21 to the second housing B22, the end face B81 of the protrusion B80 of the second housing B22 on the first housing B21 side is a flat surface. Fig. 28 is a side cross-sectional view showing an example of a process for disassembling the housings in the second embodiment. Fig. 28 shows a cross section taken along line EE in Fig. 27.

[0085] 27 and 28, the second pressing portion Z20 of the jig Z has a flat surface Z21. The flat surface Z21 presses the end surface B81 of the protrusion B80 of the second housing B22 in the negative direction along the Z axis, thereby separating the second housing B22 from the first housing B21. Note that, as shown in Fig. 28, when the jig Z is aligned with the rotating device A1, the second pressing portion Z20 comes into contact with the side wall portion B211 of the first housing B21.

[0086] The jig Z may include a third pressing portion Z30 for pushing the hooks B30 of the first housing B21 outward. As shown in Fig. 16, the third pressing portion Z30 includes an inclined surface Z31 that comes into contact with the inclined surface B31 of the hooks B30 of the first housing B21. By pushing the hooks B30 outward with the third pressing portion Z30, the hooks B30 become more likely to come off the protrusion B40 of the second housing B22.

[0087] 29, in the direction from the first housing B21 to the second housing B22, the end surface B71 of the protrusion B70 of the first housing B21 on the second housing B22 side is a flat surface. FIG. 29 is another side cross-sectional view showing an example of the process of disassembling the housings in the second embodiment. FIG. 29 shows a cross section taken along line FF in FIG. 27. Note that, as shown in FIG. 29, when the jig Z is aligned with the rotating device A1, the first pressing portion Z10 contacts the side wall portion B221 of the second housing B22. In addition, in FIG. 29, the second pressing portion Z20 of the jig Z is not visible.

[0088] 27 and 29, the first pressing portion Z10 of the jig Z has a flat surface Z11. The flat surface Z11 presses the end surface B71 of the protrusion B70 of the first housing B21 in the positive direction along the Z axis, thereby separating the first housing B21 from the second housing B22.

[0089] 17, the side surface B72 of the protrusion B70 of the first housing B21 on the hook B30 side is flat in the circumferential direction. With this configuration, the protrusion B80 does not interfere with the protrusion B70 being pressed by the first pressing portion Z10 of the jig Z. Similarly, the side surface B82 of the protrusion B80 of the second housing B22 on the protrusion B40 side is flat in the circumferential direction.

[0090] 17, the thickness T21 of the protrusion B70 of the first housing B21 and the thickness T22 of the protrusion B80 of the second housing B22 are the same as the thickness of the hook B30 or the protrusion B40. With this configuration, the size of the housing B2 can be minimized while ensuring that the thickness of the protrusions is sufficient to separate the housing B2 using the jig Z.

[0091] With this configuration, the first housing B21 and the second housing B22 are separated as shown in Fig. 30. Fig. 30 is a cross-sectional perspective view showing an example of the housings after separation in the second embodiment. The jig Z disengages the hook B30 of the first housing B21 from the protrusion B40 of the second housing B22, and the first housing B21 moves relatively to the second housing B22 in the positive direction on the Z axis.

[0092] As described above, the rotating device A1 in the second embodiment includes a housing B2 formed of a first housing B21 and a second housing B22. An engaging portion B30 and a protrusion B70 are formed on a side surface B211 of the first housing B21, and an engaged portion B40 and a protrusion B80 that engage with the engaging portion B30 are formed on a side surface B221 of the second housing B22. The protrusion B70 of the first housing B21 and the protrusion B80 of the second housing B22 are disposed adjacent to each other in the circumferential direction and in the direction from the first housing B21 to the second housing B22. This configuration allows the first housing B21 and the second housing B22 to be easily separated.

[0093] Furthermore, rotating device A1 in the second embodiment includes housing B2 having separable first and second housings B21 and B22, motor A3, sensor H7 having terminal H8, plate F40 fixed to housing B2, external connection terminal 4 fixed to plate F40, terminal H8 of sensor H7 that fixes external connection terminal 4 to housing B2, and another member 800 that electrically connects external connection terminal 4. In the direction from first housing B21 to second housing B22, portion 4T of external connection terminal 4 protruding from plate F40 faces terminal H8 of sensor H7. With this configuration, rotating device A1 can be made smaller.

[0094] [Variations] Although the configurations and modifications of each embodiment have been described above, the embodiments and modifications are not limited thereto. For example, while an example in which concaves and convexes are formed on the surface of the bearing of the second housing has been described, a configuration in which concaves and convexes are formed on the first transmission gear may also be used. FIG. 31 is a perspective view showing an example of a first transmission gear in a first modification. As shown in FIG. 31, the first transmission gear K00 in the first modification has concaves and convexes formed on a surface 631 facing the bearing 900 in addition to an annular portion 641. That is, the surface of the annular portion of the gear K00 is the inner circumferential surface 641, and the surface of the bearing 900 is the outer circumferential surface 940. The inner circumferential surface 641 of the annular portion of the gear K00 facing the outer circumferential surface 940 of the bearing 900 has multiple concaves or convexities aligned in the rotational direction of the rotation shaft 69. Also in the first modification, a viscous fluid V1 is disposed in the annular portion 641 and the surface 631 of the first transmission gear K00.

[0095] According to this configuration, noise can be reduced even if the surface 930 of the bearing 900 and the surface 940 of the annular portion are not formed with irregularities.

[0096] Although Figure 31 illustrates the annular portion 631 of the first transmission gear K00 having unevenness formed over the entire portion, it may also be configured so that unevenness is formed only in a portion, such as the outer or inner portion in the radial direction.

[0097] Furthermore, in the substrate H00 of the sensor H7 in the second embodiment, for example, instead of the second conductor H20 including the bent portions H23 and H24, the second conductor H20 may be formed in a spiral shape inclined from the second conductor L20 toward the first conductor 710, as shown by the dotted line in FIG. 32. FIG. 32 is a plan view showing an example of a conductor of the sensor in the second modified example. In the second conductor L20 shown in FIG. 32, the portion L28 and the portion L29 are connected by the inclined portion L25. With this configuration, the distance between the second conductor L20 and the rotation axis 751 changes continuously, so that one second brush H62 can cover the entire second conductor.

[0098] Also, a configuration may be adopted in which a gear other than the first transmission gear, for example, the second transmission gear 62 or the output gear 50, is supported by a bearing similar to the bearing 900 or Q00. Note that the configuration may also be such that only convex portions or only concave portions are formed on the gear and the bearing.

[0099] Although the present invention has been described above based on the embodiments and modifications thereof, it goes without saying that the present invention is not limited to the embodiments and modifications thereof, and various modifications are possible without departing from the spirit of the present invention. Such modifications without departing from the spirit of the present invention are also included in the technical scope of the present invention, and this will be clear to those skilled in the art from the description of the claims. [Explanation of symbols]

[0100] 1, A1 Rotating equipment, 2, B2 Housing, 3, A3 Motor, 4 Terminal group, 6 Gear group, 7, H7 Sensor, 70, H70 Sensor housing, 78a to 78c, H8a to H8c Terminal, 700, H00 Board, 710 First conductor, 719 Hole portion, 720, H20, L20 Second conductor, 721, 722, H21, H22 End, 730 Third conductor, 750, H50 Brush, 751 Rotating shaft, 761 First brush, 762, H62 Second brush, H63 Third brush, 790 Insulating member, 8, 800 FPC, 87a to 87c Land, 81a to 81c, 88a to 88c Bending portion, 900, Q00 Bearing, 930, 931 Surface, 940, 941 Outer circumferential surface, 10 worm, 21, B21 first housing, 22, B22 second housing, 29 boss portion, 30 frame, 31 rotating shaft, 36 terminal, 40, F40 plate, F41 convex portion, 50, E50 output gear, 51 output shaft, 59 concave portion, 600, E61, K00 first transmission gear, 61 a helical gear, 61 b ​​gear, 62 second transmission gear, 69 rotating shaft, 93, B93 connecting piece, 94, B94 connecting hole, 209 connector portion, 210, 220 surface portion, 211, 221, B211, B221 side wall portion, 212, 222, B212, B222 opening portion, 215 first opposing surface, 217 second opposing surface, 219, 229, B19, B29 Extension portion, 225, B25 Through hole, 226 Third opposing surface, 228 Fourth opposing surface, 230 First protrusion, B30 Hook, 240 First hook, B40 Protrusion, 250, 500, B55, C00 Storage portion, 254, 264, B56, B60 Support portion, B61 Recess, 270 Hook, 280 Protrusion, B31 Inclined surface, B70, B80 Projection, B71, B81 End surface, B72, B82 Side surface, 291 First through hole, 292 Second through hole, 299, 990 Recess, 330 First end, 331 Protrusion, 332 End surface, 336 Second protrusion, 340 Second end, 342 Protrusion, 349 End surface, 350 Outer peripheral side surface, 530 First wall, 531 recess, 534, 544 bottom, 538 triangular rib, 540 second wall, 545 protrusion, 546 standing portion, 549 protrusion, 550 side wall, R1 elastic adhesive, V1 fluid, Z jig, Z10 first pressing portion, Z11,Z21 surface, Z20 second pressing part, Z30 third pressing part, Z31 inclined surface, Z50 bottom surface, Z60 top surface, Z90 hole part, Z99 rod-shaped member,

Claims

1. a housing having a separable first housing and a second housing; A motor; A sensor having a terminal; A plate fixed to the housing; an external connection terminal fixed to the plate; Another member electrically connecting the terminal of the sensor and the external connection terminal; Equipped with a portion of the external connection terminal protruding from the plate faces a terminal of the sensor in a direction from the first housing toward the second housing; Rotating equipment.

2. The rotating device according to claim 1 , wherein the sensor and the plate are adjacent to each other in a longitudinal direction of the external connection terminal.

3. The rotating device according to claim 1 , wherein the plate is sandwiched between a recess of the first housing and a recess of the second housing.

4. In a direction from the first housing toward the second housing, a side portion of the plate includes a recess, The recess of the plate engages with a portion of the first housing or a portion of the second housing. The rotating device according to claim 1 .

5. Equipped with gear, A portion of the sensor is housed in a recess of the gear in a direction from the first housing toward the second housing. The rotating device according to claim 1 .

6. The rotating device according to claim 5 , wherein a terminal of the sensor is located between an outer periphery of the gear and the plate.

Images