Rotating device

Abstract

To provide a rotary device capable of being thinned.SOLUTION: A sensor includes: a brush; a conductive portion that comes in contact with the brush; a substrate on which the conductive portion is provided; and a sensor housing that accommodates the brush and the substrate. The other end portion of a connection terminal having one end portion electrically connected to the outside is electrically connected to the conductive portion via the other member. In a direction from one end portion to the other end portion of the connection terminal, a side portion of the sensor housing is between the other end portion of the connection terminal and the conductive portion. In a direction from one end portion to the other end portion of the connection terminal, an end surface at the other end portion of the connection terminal and an end surface of the substrate are arranged side by side. In a direction from one end portion to the other end portion of the connection terminal, the other member includes one end portion, the other end portion, and an intermediate portion between the one end portion and the other end portion.SELECTED DRAWING: Figure 5A

Description

[Technical field]

[0001] The present invention relates to times Conversion Place Regarding. [Background technology]

[0002] Conventionally, there has been a rotating device (motor actuator) equipped with a motor, an output gear, and a sensor that detects the rotational position (rotational angle) of this output gear, which can drive, for example, multiple switching doors (louvers) provided in the air passage of a vehicle air conditioning system (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-5512 A Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention A circuit that can prevent damage to electronic components or maintain electrical connection between electronic components and a board. Conversion Place The purpose is to provide. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention is realized by the following configuration. A rotating device according to one aspect of the present invention includes a motor, a worm gear, a gear, a sensor, a wiring board that electrically connects the motor to an external device, electronic components mounted on the wiring board, and a housing. The motor includes a terminal and Frame and a rotation axis. Frame is the rotation axis direction Bottom and top The gear meshes with the worm gear. The housing accommodates the motor, the wiring board, and electronic components. In the rotation axis direction, the terminal Frame of Bottom partThe worm gear is provided in the Frame of Top section The electronic component is attached to a portion of the rotating shaft protruding from the housing. The wiring board is formed of a flexible film. The electronic component is held in the housing. The housing includes a side wall portion, a space for holding the electronic component, and one or more holding portions provided in the space, and the space is on the side wall portion side with respect to the holding portion. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a rotation device according to a first embodiment. [Diagram 2] FIG. 2 is a plan view of the rotation device according to the first embodiment with the first housing removed. [Diagram 3] FIG. 3 is an exploded perspective view of the rotation device according to the first embodiment. [Figure 4] FIG. 4 is a plan view of the rotation device according to the first embodiment. [Figure 5A] FIG. 5A is a cross-sectional view taken along line AA in FIG. [Figure 5B] FIG. 5B is a cross-sectional view taken along line BB in FIG. [Figure 6] FIG. 6 is a plan view of the sensor housing. [Figure 7A] FIG. 7A is a cross-sectional view taken along line CC in FIG. [Figure 7B] FIG. 7B is a cross-sectional view taken along line DD in FIG. [Figure 8A] FIG. 8A is an exploded perspective view of the sensor housing as viewed from the main surface side. [Figure 8B] FIG. 8B is an exploded perspective view of the sensor housing as viewed from the rear surface side of the rotor. [Figure 9] FIG. 9 is a front view of the rotation device installed in the jig. [Figure 10] FIG. 10 is a plan view of the rotation device installed in the jig. [Figure 11A] FIG. 11A is a cross-sectional view taken along line EE in FIG. [Figure 11B] FIG. 11B is an explanatory diagram equivalent to the cross-sectional view of FIG. 11A, illustrating a state in which the first housing and the second housing of the rotation device placed on the jig are separated. [Figure 12] FIG. 12 is a perspective view of a rotation device according to a second embodiment with a first housing removed. [Figure 13] FIG. 13 is an exploded perspective view of a rotation device according to the second embodiment. [Figure 14] FIG. 14 is a plan view of a rotation device according to a third embodiment with the first housing removed. [Figure 15] FIG. 15 is an exploded perspective view of a rotation device according to a third embodiment. [Figure 16] FIG. 16 is an explanatory diagram showing a connector portion of a rotating device according to a modified example. [Figure 17] FIG. 17 is a perspective view of a connection terminal provided in a connector portion of a rotating device according to a modified example. [Figure 18] FIG. 18 is a cross-sectional explanatory view showing the positional relationship between the connection terminal and the sensor housing of the above. [Figure 19] FIG. 19 is a schematic explanatory diagram showing an air conditioning system including a rotation device according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, a mode for carrying out the present invention (hereinafter, referred to as an "embodiment") will be described in detail with reference to the accompanying drawings. Note that the same components are denoted by the same reference numerals throughout the description of the embodiment.

[0009] [First embodiment] Fig. 1 is a perspective view of a rotating device according to a first embodiment, Fig. 2 is a plan view of the rotating device according to the first embodiment with a first housing removed, Fig. 3 is an exploded perspective view of the rotating device according to the first embodiment, Fig. 4 is a plan view of the rotating device according to the first embodiment, Fig. 5A is a cross-sectional view taken along line AA in Fig. 4, and Fig. 5B is a cross-sectional view taken along line BB in Fig. 4. Fig. 19 is a schematic explanatory view showing an air conditioning system including a rotating device according to an embodiment.

[0010] The rotating device 1 according to the embodiment is used in, for example, an air conditioning system 100 for a vehicle as shown in Fig. 19, and can control the rotational operation of a louver 104 for controlling the amount of air flow, etc. The air conditioning system 100 for a vehicle includes a blower fan 101, an evaporator 102 for cooling the air sent out from the blower fan 101, and a heater 103 disposed downstream of the evaporator 102. A louver 104 for controlling the supply amount of air flowing from the evaporator 102 side to the heater 103 side is disposed between the evaporator 102 and the heater 103, and a drive shaft 104a of the louver 104 is rotated by the rotating device 1.

[0011] As shown in Fig. 1, the rotation device 1 includes a housing 2 that houses functional units therein. Specifically, the functional units include a motor 3, a plurality of transmission gears 6, an output gear 5, a sensor 7, and the like, which will be described later.

[0012] The housing 2 is configured by connecting a first housing 21 having an opening and a second housing 22 having an opening with the openings butted against each other. The first housing 21 has a first surface 210 which is the top surface of the housing 2, a first side wall 211 provided on the outer periphery of the first surface 210, and an opening 214 surrounded by the first side wall 211. The second housing 22 has a second surface 220 (see FIGS. 5A and 5B) which is the bottom of the housing 2, a second side wall 222 provided on the outer periphery of the second surface 220, and an opening 226. The housing 2 is formed of a resin material such as polypropylene, polyethylene terephthalate, or ABS.

[0013] The first housing 21 has a plurality of engagement portions 212 formed integrally on the outer periphery of the first side wall portion 211 so as to extend toward the second housing 22, and holes (hereinafter referred to as engagement holes) are provided in the engagement portions 212. On the other hand, the second housing 22 has a plurality of protrusions (hereinafter referred to as engagement protrusions 224) formed integrally on the second side wall portion 222, which correspond to the plurality of engagement portions 212 of the first housing 21, as shown in Figs. 2 and 3. The engagement protrusions 224 engage with the engagement holes of the engagement portions 212.

[0014] That is, by combining the first housing 21 and the second housing 22 so that the engagement protrusion 224 of the second housing 22 engages with the engagement hole of the engagement portion 212 of the first housing 21, the first housing 21 and the second housing 22 are integrated to form a housing 2 (see FIG. 1) that houses a functional section having various parts shown in FIG. 2 and FIG. 3.

[0015] In this embodiment, the engagement portion 212 is provided on the first housing 21 and the engagement protrusion 224 is provided on the second housing 22, but it is also possible to provide the engagement portion 212 on the second housing 22 and the engagement protrusion 224 on the first housing 21.

[0016] Further, as will be described in detail later, the first housing 21 is provided with a plurality of protrusions 91 (FIG. 3), and the second housing 22 is provided with a plurality of through holes 92 corresponding to the plurality of protrusions 91. When the first housing 21 and the second housing 22 are butted against each other and connected together into an integrated unit, the protrusions 91 fit into the through holes 92. The protrusions 91 and the through holes 92 extend in the direction of the rotation axis of the transmission gear 6 or the output gear 9.

[0017] 3, 5A, and 5B, the first housing 21 and the second housing 22 are formed with corresponding protrusions 213, 223, respectively. In this embodiment, the protrusions 213, 223 protrude in the direction in which the rotation shaft of the motor 3 or the first connection terminal 74 or the second connection terminal 40 of the sensor 7, which will be described later, extends. These protrusions 213, 223 are joined together to form the connector section 200 (FIG. 1).

[0018] As shown in Fig. 3, the connector section 200 is formed with a concave holding section 201 that holds a plurality of second connection terminals 40 that are electrically connected to a first connection terminal 74 (Fig. 5A) of the sensor 7 described later. As shown in the figure, a piece 40a that protrudes upward is formed at one end of the second connection terminal 40. This piece 40a forms a pair with a tip end of a connection terminal 74 of the sensor 7 described later. Note that, for convenience, Fig. 3 shows a state in which one of the second connection terminals 40 is removed from the plurality of holding sections 201, but a plurality of second connection terminals 40 (3 to 5) may be provided as necessary.

[0019] As shown in FIG. 1, the first housing 21 is provided on its outer periphery with four mounting portions 23, 24, 25, and 26 for mounting the rotating device 1 at a predetermined position when incorporating the rotating device 1 into, for example, an air conditioning system.

[0020] 2 and 3, the rotating device 1 includes, as various components constituting the functional unit housed in the housing 2, a motor 3, an output gear 5 that mechanically outputs the rotation of a rotating shaft 31 of the motor 3 to the outside, a plurality of transmission gears 6 that transmit the rotation of the motor 3 to the output gear 5, and a sensor 7 that detects the rotation angle of the output gear 5. The sensor 7 includes a sensor unit 70 (see FIG. 7B ) described below and a case (hereinafter referred to as a sensor housing 72) that houses the sensor unit 70, and the rotating device 1 can control the rotation of the motor 3 based on the rotation angle of the output gear 5 detected by this sensor unit 70.

[0021] The multiple transmission gears 6 have a first transmission gear 61 and a second transmission gear 62, both of which are configured in multiple stages, and the rotation of the rotating shaft 31 of the motor 3 is transmitted to the output shaft 51 of the output gear 5 by meshing with the multiple gears.

[0022] 2 and 3, the rotating device 1 according to this embodiment includes a flexible wiring board 8 as a board that electrically connects the second connection terminal 40 with the motor 3 and the sensor 7. Input / output signals for driving the motor 3 and a signal corresponding to the rotation angle of the output gear 5 from the sensor 7 can be obtained from the outside via this wiring board 8 and the second connection terminal 40. Note that the concept of electrically connecting here includes the case where two members are directly connected and the case where they are connected via another member. The board is included in the concept of a connecting member, which will be described later.

[0023] Each element constituting the functional unit will now be described in more detail.

[0024] (Motor 3) The motor 3 is a drive device for rotating the output gear 5, and in this embodiment, a DC motor is used for the motor 3. As shown in FIG. 3, the motor 3 includes a main body 30 having an outer shell (frame) having a rectangular prism shape with curved corners, a rotating shaft 31, and a pair of terminals 33, 33. In the direction of the rotation axis, the main body 30 has two side surfaces, which are a top surface and a bottom surface. A part (including an end) of the rotating shaft 31 is led out from one side surface (top surface) of the main body 30. The pair of terminals 33, 33 are provided on the other side surface (bottom surface) of the main body 30 in the direction of the rotation axis. Note that a part of the rotating shaft 31 on one side is fixed to a rotor (not shown) housed in the main body 30 of the motor 3, and a worm gear 4 is attached to a part of the rotating shaft 31 on the other end side protruding from the main body 30.

[0025] (Transmission gear 6) The transmission gear 6 is a gear for transmitting the rotation of the rotating shaft 31 of the motor 3 to the output gear 5 at a predetermined reduction ratio (gear ratio), and in this embodiment, as described above, has the first transmission gear 61 and the second transmission gear 62, both of which are configured in multiple stages. Note that the worm gear 4 attached to the rotating shaft 31 of the motor 3 can also be included in the transmission gear.

[0026] 3, the transmission gear 6 includes a first transmission gear 61 having a first large diameter portion 611 and a first small diameter portion 612, and a second transmission gear 62 having a second small diameter portion 621 and a second large diameter portion 622. The diameter of the first large diameter portion 611 is larger than the diameter of the first small diameter portion 612. The relationship between the second large diameter portion 622 and the second small diameter portion 621 is also similar.

[0027] A first large diameter portion 611 of the first transmission gear 61 meshes with the worm gear 4 attached to the rotating shaft 31 of the motor 3. Further, a first small diameter portion 612 of the first transmission gear 61 meshes with a second large diameter portion 622 of the second transmission gear 62, and a second small diameter portion 621 of the second transmission gear 62 meshes with the output gear 5. In this manner, by meshing multiple gears, the rotation of the rotating shaft 31 of the motor 3 is transmitted to the output shaft 51 of the output gear 5 at a predetermined reduction ratio.

[0028] In this embodiment, two first transmission gears 61 and second transmission gears 62 are used in a multi-stage configuration to transmit the rotation of the rotating shaft 31 of the motor 3 to the output gear 5 while adjusting the gear ratio by utilizing a small space. However, for example, the second transmission gear 62 may be omitted and the output gear 5 may be meshed with the first small diameter portion 612 of the first transmission gear 61, which has a small diameter, or both the first transmission gear 61 and the second transmission gear 62 may be omitted and the output gear 5 may be directly meshed with the worm gear 4.

[0029] (Output gear 5) The output gear 5 has a recess 50 in the rotation axis direction (extending direction of the output shaft 51 serving as the rotation axis). Specifically, as shown in Fig. 3, the output gear 5 has a gear body 5a having an outer circumferential surface on which a tooth row 52 is formed, and the recess 50. This gear body 5a has a cylindrical shape. A part of the sensor 7 is housed in the recess 50 formed inside the gear body 5a.

[0030] 5A and 5B, a recess 50 having a bottom portion and an inner wall surface formed by the side surface of the gear body 5a and an opening portion surrounded by the inner wall surface is provided in the gear body 5a in the extension direction of the output shaft 51 passing through the center of the gear body 5a. A part of the sensor housing 72 containing the sensor unit 70 is accommodated in the upper side of the recess 50, i.e., in the position of the recess 50 facing the first face portion 210 of the first housing 21.

[0031] As described above, the second transmission gear 62 is a multi-stage gear having the second large diameter portion 622 to which the rotation from the motor 3 is transmitted and the second small diameter portion 621 extending from the second large diameter portion 622 to transmit the rotation to the output gear 5, and the second large diameter portion 622 of the second transmission gear 62 is disposed so as to partially overlap with the output gear 5 in the direction of the rotation axis of the output gear 5 (see FIG. 2). Therefore, the sensor housing 72 is disposed between the second large diameter portion 622 of the second transmission gear 62 and the output gear 5.

[0032] In addition, here, when describing the vertical positional relationship, it is based on a state in which the first housing 21 of the rotation device 1 is located relatively on the upper side and the second housing 22 is located relatively on the lower side.

[0033] Moreover, the cross section of the upper end (one end) of the output shaft 51 is D-shaped and is formed into a shape that can fit with a rotating plate 71 described later. The lower half of the output gear 5 is formed with a larger diameter than the upper half of the output gear 5, and an engagement portion 54 is formed on the inner circumferential surface of the lower half with which an external shaft such as the drive shaft 104a of the louver 104 of the air conditioning system 100 described above is engaged. Therefore, by rotating the output gear 5, the rotational movement of the louver 104 can be controlled, and the air volume of the air conditioning system 100 can be adjusted (see FIG. 19).

[0034] As described above, the output gear 5 is connected to the drive shaft 104a of the louver 104 of the air conditioning system 100 mounted on a vehicle or the like. That is, the output gear 5 is a gear for outputting the rotational force of the rotating shaft 31 of the motor 3 as a driving force for controlling the drive shaft 104a of the louver 104. However, the embodiment is not necessarily limited to a configuration in which a shaft to be rotated, such as the drive shaft 104a of the louver 104, is directly connected to the output gear 5. For example, a gear may be interposed as another member between the rotating device 1 and the shaft to be rotated. In this case, it is preferable to connect the rotation shaft of the interposed gear to the output gear 5.

[0035] (Sensor 7) As described above, for example, an air conditioning system 100 (see FIG. 19) mounted on an automobile includes a louver 104. In order to drive the louver 104 to a predetermined state, the rotation angle of the output gear 5 can be detected using the sensor 7.

[0036] In order to make the rotating device 1 thinner, the sensor 7 of this embodiment accommodates a brush 75, which adds thickness in the height direction, in a sensor housing 72, thereby achieving a thin rotating device 1 while going against the trend toward making the sensor 7 thinner.

[0037] The sensor 7 will be described in detail below with reference to the drawings. Fig. 6 is a plan view of the sensor housing 72. Fig. 7A is a cross-sectional view taken along line CC in Fig. 6, and Fig. 7B is a cross-sectional view taken along line DD in Fig. 6. Fig. 8A is an exploded perspective view of the sensor housing 72 as viewed from the main surface side, and Fig. 8B is an exploded perspective view of the sensor housing 72 as viewed from the rear surface side of the rotating body (the side opposite to the surface side on which the wiring board 8 described later is provided).

[0038] The sensor 7 includes a sensor unit 70 having a sensor substrate 73 and a brush 75, and a sensor housing 72 that accommodates the sensor unit 70. By using the sensor 7, it is possible to detect the rotation angle of the output gear 5.

[0039] As shown in Figs. 6, 8A and 8B, the sensor housing 72 has a first region A having a planar shape of an arc and a second region B having a planar shape of a square. The first region A is surrounded by a first side portion 72a curved in the circumferential direction. The first side portion 72a is formed by a wall portion 722. The second region B is surrounded by a second side portion 72b. The second side portion 72b is formed by a wall portion 722. That is, the first side portion 72a and the second side portion 72b are integrally formed. A part of the first side portion 72a becomes a part of the sensor housing 72 accommodated in the recess 50 of the output gear 5. In a part of the sensor housing 72, a part of the first side portion 72a becomes a part 72aa protruding from the second side portion 72b in the rotation axis direction of the output gear 5.

[0040] 6, 8A, and 8B, a first hole portion (hereinafter referred to as a first circular hole) 723 having a circular shape is formed in the center of the first side portion 72a of the sensor housing 72. A boss portion 711 provided in the center of the rotating plate 71, which is a plate that rotates together with the output gear 5, can be inserted into this first circular hole 723. A hole portion (hereinafter referred to as a fitting hole) 712 is formed in the boss portion 711, and this fitting hole 712 is fitted into the end portion of the output shaft 51, which has a D-shaped cross section.

[0041] In addition, the second side 72b of the sensor housing 72 has multiple (here, three) rectangular holes (hereinafter referred to as rectangular holes) 721 for allowing the end (tip) of the first connection terminal 74 to protrude.

[0042] As shown in Figures 7B, 8A and 8B, the sensor section 70 includes a conductive brush 75 serving as a contact section, and a substrate (hereinafter referred to as a sensor substrate) 73 provided with a conductive section 730 (Figure 8B) serving as a contacted section that comes into contact with the brush 75. The conductive section 730 is electrically connected to the outside.

[0043] The sensor substrate 73 is formed of, for example, an epoxy resin having a thickness of about 300 μm to about 1600 μm, and includes a portion 73a formed in an annular shape (hereinafter referred to as a circular portion) and a portion 73b formed in a rectangular shape (rectangular portion). The sensor substrate 73 is formed to be harder than a flexible wiring board 8 described later, and the circular portion 73a is disposed within an area surrounded by a first side portion 72a of the sensor housing 72, and the rectangular portion 73b is disposed within an area surrounded by a second side portion 72b of the sensor housing 72. A hole 735 is formed in the rectangular portion 73b, and the tip of the first connection terminal 74 is inserted therethrough. The planar shape of the hole 735 is rectangular.

[0044] As shown in Figures 8A and 8B, the sensor substrate 73 also has a second hole portion (hereinafter referred to as the second circular hole) 733 through which the boss portion 711 of the rotating plate 71 fitted onto the output shaft 51 of the output gear 5 is inserted, and a conductive portion 730 formed on the outer periphery of the second circular hole 733 by a known method such as printing.

[0045] Such conductive portion 730 has an output portion 731 formed on the side of the second circular hole 733 and made of a conductive material with low electrical resistance, and a resistance portion 732 formed on the outside of the output portion 731 and made of a conductive material with high electrical resistance.

[0046] 8A , the brush 75 has two contacts 751, 752 as one end, and the other end 753 connected to the two contacts 751, 752. The end 753 is fixed and held on a surface 713 of the rotating plate 71 that faces the sensor substrate 73 so that the two contacts 751, 752 come into contact with the sensor substrate 73.

[0047] The output portion 731 is formed along the outer periphery of the second circular hole 733 to surround the second circular hole 733, and includes an annular portion with which one of the two contacts 751, 752 of the conductive brush 75 shown in Figure 8A comes into contact, and an output portion 734a drawn out from this annular portion.

[0048] In addition, the resistance portion 732 is formed in an arc shape along the outer periphery of the annular portion of the output portion 731, and includes an arc-shaped portion with which the other contact 751 of the brush 75 shown in FIG. 8A comes into contact, a first lead-out portion 734b drawn out from one end of the arc-shaped portion, and a second lead-out portion 734c drawn out from the other end of the arc-shaped portion.

[0049] The conductive portion 730 thus configured constitutes a variable resistance portion. That is, when the contact position where the contact points 751, 752 of the brush 75 are in contact changes (in the circumferential direction) along the annular portion and the arc-shaped portion, the resistance value of the path from the first lead-out portion 734b to the lead-out portion 734a changes. Therefore, when the contact position of the brush 75 changes (in the circumferential direction) along the annular portion and the arc-shaped portion while a voltage is applied between the first lead-out portion 734b and the second lead-out portion 734c, the voltage between the first lead-out portion 734b and the lead-out portion 734a changes, and the rotation angle of the output gear 5 can be detected based on the change in voltage.

[0050] Since the sensor unit 70 in this embodiment has the above-mentioned configuration, the brush 75 is disposed within a part of the sensor housing 72 in the direction of the rotation axis of the output gear 5, and furthermore, this brush 75 is disposed on the output gear 5 side with respect to the sensor board 73. That is, with respect to the recess 50 provided in the output gear 5, the rotating plate 71, the brush 75, and the sensor board 73 are disposed in this order from the side of the bottom 53 which is the bottom of the recess 50.

[0051] Therefore, in the rotating device 1 according to this embodiment, the sensor 7 can be assembled extremely easily. That is, for example, the sensor substrate 73 may be attached in advance to the back surface side of the sensor housing 72, and the sensor housing 72 may be placed over the prepared rotating plate 71 from above so that the contacts 751, 752 of the brush 75 fixed to the rotating plate 71 come into contact with the conductive part 730 of the sensor substrate 73.

[0052] Furthermore, since the sensor unit 70 including the sensor substrate 73 and the brush 75 can be covered and protected by the sensor housing 72, handling of the sensor 7 becomes easy.

[0053] In this embodiment, an example is shown in which a rotary type resistive position sensor is configured using a sensor substrate 73 and a conductive brush 75, and the resistance value changes as the contact position of the brush 75 with respect to the conductive portion 730 displaces in the circumferential direction; however, the configuration of the conductive portion 730 does not need to be limited to the configuration of this embodiment.

[0054] For example, notches may be provided at a fixed pitch from the outer periphery (or inner periphery) of the arc-shaped portion, and when the contacts 751, 752 of the brush 75 are located at these notches, no current is passed (hereinafter also referred to as OFF), and when there are no notches, current is passed (hereinafter also referred to as ON), and the rotation angle of the output gear 5 may be detected based on the number of ON-OFF cycles detected.

[0055] (First connection terminal 74 and second connection terminal 40) The first connection terminal 74 and the second connection terminal 40 are connection terminals that are connected to an external connector that is connected to the rotating device 1 .

[0056] The first connection terminal 74 has one end electrically connected to the sensor substrate 73 and the other end electrically connected to the outside, and one end connects to the lead-out portion 734a, the first lead-out portion 734b or the second lead-out portion 734c of the sensor substrate 73.

[0057] The other end of the first connection terminal 74 is bent to form a bent portion 74a as shown in Figures 7A and 7B, and the tip of the bent portion 74a extends in a direction away from the bottom 53 of the recess 50 provided in the output gear 5 as shown in Figure 5A.

[0058] Further, the second connection terminal 40 electrically connected to the first connection terminal 74 is provided on the housing 2. That is, as shown in FIG. 3, it is held by a holding portion 201 formed on a connector portion 200 (see FIG. 1) of the housing 2. The second connection terminal 40 has a protruding portion 40b extending in a direction opposite to the direction in which the piece 40a protrudes. This protruding portion 40b is inserted into the holding portion 201, and the second connection terminal 40 is held by the housing 2. In this embodiment, the first connection terminal 74 is formed by punching a metal plate into a predetermined shape.

[0059] The other end of the first connection terminal 74 and a piece 40a formed on one end of the second connection terminal 40 are electrically connected via the flexible wiring board 8. The piece 40a is provided on one end of the second connection terminal 40, and protrudes in a direction away from the bottom 53 of the recess 50 provided in the output gear 5.

[0060] In this way, the first connection terminal 74 is formed with a bent portion 74a bent upward, and the second connection terminal 40 is formed with a piece 40a, so that a stable connection can be made via the flexible wiring board 8 (see Figures 2 and 3) described later.

[0061] (wiring board 8) The wiring board 8 is formed of a flexible film, and has three main planar portions 81, 82, and 83, as shown in Fig. 3. Specifically, the wiring board 8 has a first planar portion 81 at one end connected to the first connection terminal 74 and the second connection terminal 40, a second planar portion 82 at the other end connected to the terminal 33 of the motor 3, and a third planar portion 83 connecting the first planar portion 81 and the second planar portion 82.

[0062] The first flat surface portion 81 is provided with a hole portion that engages with one end portion of the first connection terminal 74 (hereinafter referred to as the end portion on the bent portion 74a side) and a hole portion that engages with the piece 40a of the second connection terminal 40, and a reliable electrical connection can be achieved by engaging the end portion on the bent portion 74a side of the first connection terminal 74 and the piece 40a of the second connection terminal 40 with these holes and soldering them. Therefore, poor contact can be suppressed.

[0063] The flexible wiring board 8 has a structure in which an adhesive layer is formed on a film (resin substrate) having a thickness of, for example, about 12 μm to 50 μm, and a conductor having a thickness of, for example, about 12 μm to 50 μm is printed or pasted on the adhesive layer, and the film is made of an insulating resin material such as polyimide or polyester. The conductor is made of a metal material such as copper. The adhesive layer is made of an epoxy resin or an acrylic resin. Such wiring board 8 is a flexible board that can be restored to its original shape even if it is bent at an angle of 90 degrees or more.

[0064] In this way, the first connection terminal 74 and the second connection terminal 40 are connected by the flexible wiring board 8. Therefore, even if the first connection terminal 74 and the second connection terminal 40 vibrate due to vibrations of a vehicle such as an automobile, before strong stress is applied to the connection part electrically connected by solder or the like, the flexible wiring board 8 changes shape (or absorbs the vibrations), attenuating the amplitude of the vibration and preventing strong stress from being applied to the connection part. This makes it possible to prevent cracks or breakage from occurring in the connection part.

[0065] In this way, the first connection terminal 74 and the second connection terminal 40 are electrically connected using a flexible wiring board 8, which is easier to handle and has an advantage in terms of manufacturing costs than, for example, using thin, easily damaged lead wires.

[0066] In this embodiment, as shown in FIG. 3, the second flat portion 82 of the wiring board 8 connected to the terminal 33 of the motor 3 is also provided with a hole portion for engaging with the terminal 33, and a reliable electrical connection can be achieved by engaging the hole portion with the terminal 33 of the motor 3 and soldering it.

[0067] (Characteristic configuration of case 2) Here, the configuration of the housing 2 of the rotation device 1 according to this embodiment, particularly the characteristic configuration of the housing 2 in this embodiment, will be described. Fig. 9 is a front view of the rotation device 1 placed on a jig, and Fig. 10 is a plan view of the rotation device 1 placed on the jig. Fig. 11A is a cross-sectional view taken along line EE in Fig. 10, and Fig. 11B is an explanatory diagram equivalent to the cross-sectional view of Fig. 11A, showing a state in which the first housing 21 and the second housing 22 of the rotation device 1 placed on the jig are separated.

[0068] As described above, the housing 2 according to this embodiment has the opposing first housing 21 and second housing 22. The housing 2 includes the motor 3 housed therein, and as gears for transmitting the rotation of the motor 3 to the outside, the housing 2 includes the transmission gear 6 including the worm gear 4, the first transmission gear 61 and the second transmission gear 62, and the output gear 5.

[0069] In conventional rotating devices having a configuration similar to that of the housing 2, no particular consideration is given to the rigidity of the housing 2 having the first housing 21 and the second housing 22, or the reproducibility of disassembly and assembly of the housing 2.

[0070] Therefore, in the rotating device 1 according to this embodiment, as shown in Fig. 3, the first housing 21 is provided with a plurality of protrusions 91 extending in the direction of the rotation axis of the output gear 5, and the second housing 22 is provided with a plurality of (four in this example) through holes 92 corresponding to the respective protrusions 91, as shown in Fig. 2 and Fig. 3. Then, in the housing 2 formed by connecting the first housing 21 and the second housing 22, the respective protrusions 91 are fitted into the respective through holes 92.

[0071] In this way, since a plurality of protrusions 91 and a plurality of through holes 92 are provided and fitted to each other, the first housing 21 and the second housing 22 can be easily joined and separated. Therefore, analysis and maintenance of the functional parts housed in the housing 2 can be easily performed.

[0072] Incidentally, it is preferable to provide at least two or more pairs of corresponding protrusions 91 and through holes 92. That is, two pairs can serve as a reference for accurate positioning in the X and Y directions when joining the first housing 21 and the second housing 22. Here, the X and Y directions are directions along the surfaces 210 and 220 of the first and second housings.

[0073] At least two protrusions 91 are press-fitted into the corresponding through holes 92. In this embodiment, four pairs of protrusions 91 and through holes 92 are provided, and all of the protrusions 91 are press-fitted into the through holes 92.

[0074] This increases the overall rigidity of the housing 2 and suppresses the generation of abnormal noise. In addition, since noise generated inside the rotating device 1 does not leak out from the through-hole 92, there is no risk of impairing quietness.

[0075] In addition, although only one protrusion 91 is shown in the first housing 21 shown in FIG. 3, in reality, four protrusions 91 are provided corresponding to the four through holes 92 provided in the first housing 21 shown in FIG. 2 and FIG. 3.

[0076] As is clear from FIGS. 11A and 11B, the dimension of through hole 92 in the direction in which protruding portion 91 extends is larger than the dimension of protruding portion 91.

[0077] With this configuration, the first housing 21 and the second housing 22 can be easily separated using the jig 11. That is, as shown in Fig. 9, by using the jig 11 including the rod-shaped bodies 11a to 11d corresponding to the multiple through holes 92 provided in the second housing 22 and the support base 110 supporting these rod-shaped bodies 11a to 11d, the first housing 21 and the second housing 22 can be separated extremely easily.

[0078] A method of separating the housing 2 into a first housing 21 and a second housing 22 includes the steps of installing the above-mentioned jig 11, as shown in FIG. 9, and inserting a plurality of (four) rod-shaped bodies 11a to 11d into a plurality of (four in this case) through holes 92 formed in the second housing 22, and further includes the step of pressing the second housing 22 toward the support base 110 of the jig 11.

[0079] 11A, when second housing 22 is pressed toward support base 110 of jig 11, rod-shaped bodies 11a-11d each function as a guide, and second housing 22 can be smoothly pressed down in the vertical direction. As a result, as shown in FIG. 11B, protrusion 91 press-fitted into through-hole 92 is easily released, and housing 2 is easily separated into first housing 21 and second housing 22.

[0080] Since the first housing 21 and the second housing 22 separated in this manner do not undergo deformation, for example, after analysis and maintenance of the inside of housing 2 is completed, the first housing 21 and the second housing 22 can be easily reassembled.

[0081] According to the first embodiment described above, the rotation device 1 described below is realized.

[0082] (1) A rotating device 1 comprising a motor 3, gears (output gear 5 and transmission gear 6) that transmit the rotation of the motor 3 to the outside, and a sensor 7, the sensor 7 comprising a sensor portion 70 and a sensor housing 72 that houses the sensor portion 70, the rotation angle of the gear can be detected by the sensor 7, the gear has a recess 50 in the direction of the rotation axis, and a part of the sensor housing 72 is housed in the recess 50.

[0083] According to this rotating device 1, a part of the sensor housing 72 is housed in the gear, so that the rotating device 1 can be made thinner.

[0084] (2) In the above (1), the sensor portion 70 includes a conductive brush 75 and a sensor substrate 73 having a conductive portion 730 electrically connected to the outside, and the brush 75 is housed in a part of a sensor housing 72 housed in the gear recess 50 of the rotating device 1.

[0085] According to this rotating device 1, the brush 75 and the sensor board 73 are protected by the sensor housing 72, while a portion of the sensor housing 72 containing the brush 75, which adds thickness to the height of the sensor 7, can be accommodated in the gear recess 50, which greatly contributes to making the rotating device 1 thinner.

[0086] (3) In the above (2), a rotating device 1 is provided with a housing 2 that houses a motor 3, gears (output gear 5 and transmission gear 6), and a sensor housing 72, and a brush 75 is located within a part of the sensor housing 72 in the direction of the rotation axis of the gear, and this brush 75 is arranged on the gear side relative to the sensor substrate 73.

[0087] According to such a rotating device 1, the sensor 7 can be assembled extremely easily, and the assembling performance of the rotating device 1 is improved.

[0088] (4) In the above (3), the housing 2 has a first surface 210 of the housing 2 which is the bottom surface facing the gear (output gear 5 or transmission gear 6) in the direction of the rotation axis of the gear, and a second surface 220 of the housing 2 which is the top surface facing the sensor housing 72, the sensor part 70 holds one end of the brush 75 and has a rotating plate 71 which rotates integrally with the gear, and the rotating device 1 in which the rotating plate 71, brush 75 and sensor substrate 73 are arranged in this order from the bottom side of the recess 50 of the gear.

[0089] According to this rotating device 1, the ease of assembly of the sensor 7 and the ease of assembly of the rotating device 1 can be further improved.

[0090] (5) In the above (3) or (4), the sensor portion 70 is provided with a first connection terminal 74 having one end electrically connected to the sensor substrate 73 and the other end electrically connected to the outside, and the other end of the first connection terminal 74 extends in a direction away from the bottom of the recess 50 of the gear (output gear 5 or transmission gear 6).

[0091] According to the rotating device 1, for example, it is possible to easily electrically connect the first connection terminal 74 to the outside using a connection member.

[0092] (6) In the above (5), a second connection terminal 40 electrically connected to the first connection terminal 74 is provided on the housing 2, and the other end of the first connection terminal 74 and one end of the second connection terminal 40 are electrically connected via the wiring board 8.

[0093] According to this rotating device 1, by attaching the wiring board 8 from above to the first connecting terminal 74 and the second connecting terminal 40 that are arranged in advance, it becomes possible to easily electrically connect the respective ends of the first connecting terminal 74 and the second connecting terminal 40 to each other, thereby improving the assembly ability of the rotating device 1.

[0094] (7) In the rotating device 1 described above in (6), the wiring board 8 is formed of a flexible film.

[0095] According to such a rotating device 1, even if vibrations are applied, the vibrations can be absorbed by the flexible wiring board 8, and even if the first connection terminal 74 and the second connection terminal 40 are electrically connected by solder or the like, it is possible to prevent strong stress from being applied to the connection portion between the first connection terminal 74 and the second connection terminal, and it is possible to prevent cracks or breakage from occurring in the connection portion, causing disconnection.

[0096] (8) In any of (1) to (7) above, the gear in which the recess 50 is formed is an output gear 5, and a transmission gear 6 is provided that transmits the rotation of the motor 3 to the output gear 5, the transmission gear 6 is a multi-stage gear having a large diameter portion (e.g., a second large diameter portion 622) to which the rotation from the motor 3 is transmitted and a small diameter portion (e.g., a second small diameter portion 621) extending from the second large diameter portion 622 to transmit the rotation to the output gear 5, the second large diameter portion 622 is arranged to overlap partially with the output gear 5 in the direction of the rotation axis, and the rotating device 1 in which a sensor housing 72 is arranged between the second large diameter portion 622 and the output gear 5.

[0097] According to this rotating device 1, it is possible to make the rotating device 1 thinner and more compact while ensuring that the rotation transmitted from the motor 3 has an appropriate reduction ratio.

[0098] Furthermore, according to the first embodiment described above, the rotation device 1 and the method for separating the housing 2 of the rotation device 1, which will be described below, are realized.

[0099] (9) A rotating device 1 comprising a housing 2 having opposing first and second housings 21 and 22, a motor 3 housed in the housing 2, and gears (transmission gear 6 and output gear 5) that transmit the rotation of the motor 3 to the outside, wherein the first housing 21 is provided with a plurality of protrusions 91, and the second housing 22 is provided with a plurality of through holes 92 corresponding to the plurality of protrusions 91, and the plurality of protrusions 91 are fitted into the plurality of through holes 92.

[0100] According to the rotating device 1, the housing 2 that houses the motor 3, the transmission gear 6, the output gear 5, and the sensor 7 can be assembled and disassembled extremely easily.

[0101] (10) In the above (9), the rotating device 1 has at least two or more pairs of the plurality of protrusions 91 and the plurality of through holes 92 corresponding to each other.

[0102] According to the rotation device 1, the protrusion 91 and the through hole 92 can be used as a reference for accurate positioning in the X and Y directions.

[0103] (11) The rotating device (1) according to (9) or (10) above, wherein the two protrusions (91) are press-fitted into the corresponding through holes (92).

[0104] According to the rotating device 1, it is possible to increase the rigidity of the housing 2 while accurately positioning the rotating device 1, and to suppress the generation of abnormal noise. In addition, since sound generated inside the rotating device 1 does not leak out from the through-hole 92, there is no risk of impairing quietness.

[0105] (12) In any one of (9) to (11) above, the dimension of the through hole 92 in the direction in which the protrusion 91 extends is larger than the dimension of the protrusion 91.

[0106] According to the rotation device 1, the first housing 21 and the second housing 22 can be easily separated by using the jig 11, for example.

[0107] (13) A method for separating the housing 2 in the rotating device 1 of any one of (9) to (12) above into a first housing 21 and a second housing 22, the method including the steps of: installing a jig 11 having rod-shaped bodies 11a to 11d corresponding to the multiple through holes 92, respectively, and a support base 110 on which the rod-shaped bodies 11a to 11d are provided; inserting the multiple rod-shaped bodies 11a to 11d into the multiple through holes 92 formed in the second housing 22; and pressing the second housing 22 toward the support base 110 of the jig 11.

[0108] [Second embodiment] Next, a rotation device 1 according to a second embodiment will be described with reference to the drawings. Note that the rotation device 1 according to the second embodiment and the rotation device 1 according to the first embodiment described above have the same basic structure, and the same components are denoted by the same reference numerals and detailed descriptions thereof will be omitted.

[0109] FIG. 12 is a perspective view of the rotating device 1 according to the second embodiment with the first housing 21 removed, and FIG. 13 is an exploded perspective view of the rotating device 1 according to the second embodiment.

[0110] 12, the rotating device 1 according to the second embodiment also includes a motor 3, a transmission gear 6 and an output gear 5 for transmitting the rotation of the motor 3 to the outside, a sensor 7, a first connection terminal 74 and a second connection terminal 40 electrically connected to the outside, and a wiring board 80 for electrically connecting the motor 3, the sensor 7, and the first connection terminal 74 and the second connection terminal 40. In addition, the wiring board 80 is formed of a flexible film.

[0111] The rotation angle of the output gear 5 can be detected by a sensor 7, and an IC (Integrated Circuit) 300, which is an electronic component that controls the operation of the motor 3, is mounted on the wiring board 80.

[0112] As described above, the second embodiment differs from the rotating device 1 according to the first embodiment in that the IC 300 that controls the operation of the motor 3 is mounted on the flexible wiring board 80.

[0113] That is, in conventional rotating devices (see, for example, JP 2009-261130 A), the electronic components that control the operation of the motor are mounted on a substrate. Therefore, the positions at which the electronic components can be placed are limited, and depending on the positions at which the electronic components are placed, this may lead to an increase in the size of the rotating device.

[0114] Therefore, in the rotating device 1 according to this embodiment, an IC (Integrated Circuit) 300, which is an electronic component, is mounted on a flexible wiring board 80 formed from a film.

[0115] 12 and 13, IC300 is mounted in a region of wiring board 80 located between motor 3 and first connection terminal 74 and second connection terminal 40, which are electrically connected to each other. In other words, IC300 is mounted in a part of wiring board 80 located between motor 3 and first connection terminal 74 and second connection terminal 40.

[0116] Specifically, the wiring board 80 is configured to have three major planar portions 80a, 80b, and 80c, as shown in Figures 12 and 13. The planar portions 80a, 80b, and 80c correspond to the first planar portion 81, the second planar portion 82, and the third planar portion 83 of the wiring board 8 shown in the first embodiment, but here, the first planar portion 80a and the third planar portion 80c have approximately the same width.

[0117] That is, while in the first embodiment the third planar portion 83 served to connect the first planar portion 81 and the second planar portion 82, here the third planar portion 80c is formed continuously with approximately the same width as the first planar portion 80a, and the IC300 is attached to the surface of the third planar portion 80c, which has a sufficient width.

[0118] In this way, by using the wiring board 80 formed from a film, the freedom in arranging the IC 300 is increased, and due to this increased freedom, the IC 300 can be arranged by utilizing the dead space in the housing 2, and the available space can be effectively utilized to make the rotating device 1 smaller or thinner.

[0119] As described above, the rotating device 1 according to the second embodiment includes the housing 2 that houses the motor 3, the transmission gear 6, the output gear 5, the sensor 7, the first connection terminal 74, the second connection terminal 40, and the wiring board 80. In the direction of the rotation axis of the output gear 5, the IC 300 is disposed at a position lower than the overall height of the motor 3 in the housing 2. That is, the third flat surface portion 80c is disposed in an inclined state along a corner of the outer shell of the motor 3, thereby disposing the IC 300 at a position lower than the overall height of the motor 3. The corner of the motor 3 where the third flat surface portion 80c is disposed is curved and faces upward (toward the first housing 21).

[0120] Here, the total height of the motor 3 in the direction of the rotation axis of the output gear 5 refers to the surface 220 of the housing 2 that contacts the motor 3, i.e., the part of the motor 3 that is at the highest position based on the bottom of the second housing 22 (for example, the part of the highest position among the side surfaces of the outer shell (frame) that face the first surface 210, which is the top surface of the first housing 21) (see Figures 1 and 3).

[0121] Moreover, the IC 300 is in contact with the motor 3 via the wiring board 80. Moreover, in this embodiment, a third flat portion 80c, which is a part of the wiring board 80, is fixed to the outer shell of the motor 3. Here, the third flat portion 80c of the wiring board 80 is fixed to the outer shell of the motor 3 using double-sided tape or the like.

[0122] Thus, in the past, in order to prevent electronic components from being damaged by external vibrations, it was necessary to mount the electronic components on a wiring board made of hard glass epoxy, and then secure an area within the housing to fasten the wiring board made of glass epoxy, and then firmly fasten this wiring board to the housing.

[0123] However, this would result in an increase in the size of the rotating device, so in the rotating device 1 of this embodiment, the wiring board 8 is formed from a flexible film, so that it can be easily fixed to the outer shell of the motor 3 with double-sided tape, etc.

[0124] In this way, the rotating device 1 of this embodiment allows for greater freedom in the placement of electronic components such as the IC 300 that controls the operation of the motor 3, making it possible to reduce the size or thickness of the device while saving space within the housing 2.

[0125] According to the above-described second embodiment, the rotation device 1 described below is realized.

[0126] (14) A rotating device 1 comprising a motor 3, gears (transmission gear 6 and output gear 5) that transmit the rotation of the motor 3 to the outside, a sensor 7, connection terminals (first connection terminal 74 and second connection terminal 40) that are electrically connected to the outside, and a wiring board 80 that electrically connects the motor 3, the sensor 7, and the connection terminals (first connection terminal 74 and second connection terminal 40), wherein the rotation angle of the output gear 5 can be detected by the sensor 7, an IC 300 is attached to the wiring board 80 as an electronic component that controls the operation of the motor 3, and the wiring board 80 is formed of a flexible film.

[0127] According to the rotating device 1, the degree of freedom in arranging electronic components such as the IC 300 is increased, so that the space inside the housing 2 can be saved while the device can be made smaller or thinner.

[0128] (15) In the above (14), the IC 300 as an electronic component is mounted in a region of the wiring board 80 between the motor 3 and the connection terminals (the first connection terminal 74 and the second connection terminal 40 ).

[0129] According to the rotation device 1, the IC 300 can be disposed in a suitable space within the housing 2, and the housing 2 can be made thinner or smaller more reliably.

[0130] (16) In the above (14) or (15), the rotating device 1 includes a housing 2 that houses a motor 3, gears (a transmission gear 6 and an output gear 5), a sensor 7, connection terminals (a first connection terminal 74 and a second connection terminal 40), and a wiring board 80, and the IC 300 is disposed at a lower position than the overall height of the motor 3 within the housing 2 in the direction of the rotation axis of the output gear 5.

[0131] According to the rotation device 1, the housing 2 can be made thinner or more compact more reliably.

[0132] (17) In any one of (14) to (16) above, the electronic component such as the IC 300 contacts the motor 3 via the wiring board 80.

[0133] According to the rotation device 1, electronic components such as the IC 300 can be stably arranged within the housing 2 while increasing the degree of freedom in terms of arrangement.

[0134] (18) In any one of (14) to (17) above, a portion of the wiring board 80 is fixed to an outer shell of the motor 3.

[0135] According to the rotation device 1, electronic components such as the IC 300 can be easily fixed inside the housing 2 while increasing the degree of freedom in arrangement thereof.

[0136] [Third embodiment] Next, a rotation device 1 according to a third embodiment will be described with reference to the drawings. Note that the rotation device 1 according to the third embodiment and the rotation devices 1 according to the first and second embodiments described above have the same basic structure, and the same components are denoted by the same reference numerals and detailed descriptions thereof will be omitted.

[0137] Fig. 14 is a plan view of the rotating device 1 according to the third embodiment with the first housing 21 removed, and Fig. 15 is an exploded perspective view of the rotating device 1 according to the third embodiment.

[0138] 14 and 15, the rotating device 1 according to the third embodiment also includes a housing 2, a motor 3, a transmission gear 6 and an output gear 5 that transmit the rotation of the motor 3 to the outside, a sensor 7, a first connection terminal 74 and a second connection terminal 40 that are electrically connected to the outside, and further includes a wiring board 80 that electrically connects the motor 3, the sensor 7, and the first connection terminal 74 and the second connection terminal 40. The rotation angle of the output gear 5 can be detected by the sensor 7.

[0139] Also, like the rotating device 1 according to the second embodiment, the IC 300, which is an electronic component, is mounted on a flexible wiring board 800 formed from a film, but the difference is that the IC 300 is held in the housing 2. That is, in the rotating device 1 according to the third embodiment, the IC 300 is mounted on the wiring board 800, and the IC 300 is held in the housing 2.

[0140] That is, in the conventional rotating device described above (for example, JP 2009-261130 A) and the like, there is a risk that the IC 300, which is an electronic component, may be damaged or the solder connecting the IC 300 may peel off due to, for example, external vibrations.

[0141] Therefore, in the rotating device 1 according to this embodiment, the IC 300, which is an electronic component mounted on the flexible wiring board 800 formed from a film, is further held in the housing 2.

[0142] Specifically, as shown in Figures 14 and 15, a space (hereinafter referred to as the holding space) 225 for holding an IC 300 is formed in a second housing 22 constituting the housing 2, and a plurality of holding portions 230 for holding the IC 300, which is an electronic component, are provided in the holding space 225.

[0143] In this manner, IC300 mounted on wiring board 800 is configured to be held by housing 2, so damage to IC300 can be prevented. Even if vibration is applied, flexible wiring board 800 absorbs the vibration, so peeling of solder connecting wiring to IC300 can be prevented. Therefore, electrical connection between IC300 and wiring board 800 can be maintained.

[0144] As shown in the figure, the multiple holding parts 230 include protrusions 227 protruding from the inner wall surface of the housing 2 (second housing 22). The tip of such protrusion 227 is preferably rounded or made of a flexible material so as not to damage the surface of the IC 300. In addition, the inner wall surface of the housing 2 itself is included in the holding part 230 as long as it can hold the IC 300 in cooperation with another member.

[0145] Furthermore, one or more of the multiple holding portions 230 are part of the housing 2 (second housing 22), and the IC 300 is elastically held to the housing 2 by the one or more holding portions.

[0146] In this embodiment, a pair of members (hereinafter referred to as clamping members) 810, 810 capable of clamping the IC 300 from both sides are provided as one of the holding parts 230. The clamping member 810 is formed of an elastic member having greater elasticity than the other members forming the holding part 230, such as the inner wall surface of the housing 2 and the protruding part 227. Here, the clamping members 810, 810 are formed of leaf springs.

[0147] In order to position the IC 300 in the holding space 225, the wiring board 800 in this embodiment is provided with a component mounting surface 830 on a part of the third flat portion 80c of the wiring board 80 used in the second embodiment. The component mounting surface 830 extends from the third flat portion 80c to the side of the wiring board 800, and is bent by utilizing its flexible characteristics so as to fit into the holding space 225 for holding the IC 300.

[0148] Thus, in the rotating device 1 according to this embodiment, the IC 300 which is an electronic component is clamped by a plurality of holding parts, that is, the protrusions 227 formed on the inner wall surface of the housing 2 and the clamping members 810.

[0149] Therefore, damage to the IC 300 can be prevented, and the electrical connection between the IC 300 and the wiring board 800 can be maintained.

[0150] According to the above-described third embodiment, the rotation device 1 described below is realized.

[0151] (19) A rotating device 1 comprising a housing 2, a motor 3, gears (transmission gear 6 and output gear 5) that transmit the rotation of the motor 3 to the outside, a sensor 7, connection terminals (first connection terminal 74 and second connection terminal 40) that are electrically connected to the outside, and a wiring board 800 that electrically connects the motor 3, the sensor 7, and the connection terminals (first connection terminal 74 and second connection terminal 40), wherein the rotation angle of the output gear 5 can be detected by the sensor 7, and an IC300 which is an electronic component that controls the operation of the motor 3 is mounted on the wiring board 800, and the IC300 is connected to the housing 2.

[0152] Such a rotating device 1 can prevent damage to the IC 300, or can maintain the electrical connection between the IC 300 and the wiring board 800.

[0153] (20) In the above (19), the wiring board 800 is formed of a flexible film.

[0154] According to the rotating device 1, the degree of freedom in arranging the IC 300 is increased, so that damage to the IC 300 can be prevented and the electrical connection between the IC 300 and the wiring board 800 can be maintained.

[0155] (21) In the above (19) or (20), the rotating device 1 has the IC 300, which is an electronic component, electrically connected to the connection terminals (the first connection terminal 74 and the second connection terminal 40) via the wiring board 800.

[0156] Furthermore, according to the rotating device 1, since external vibrations and the like can be absorbed by the wiring board 800, it becomes possible to prevent the solder connecting the IC 300 and the wiring from peeling off.

[0157] (22) In any one of (19) to (21) above, the rotating device 1 is configured such that the housing 2 includes a plurality of holders 230 for holding the ICs 300.

[0158] According to the rotation device 1, the IC 300 can be held more reliably.

[0159] (23) In the above (22), the rotating device 1, wherein the multiple holding portions 230 include an inner wall surface of the housing 2 or a protrusion 227 protruding from the inner wall surface.

[0160] According to the rotation device 1, the IC 300 can be held more reliably.

[0161] (24) In the above (22) or (23), one of the plurality of holding parts 230 is formed of an elastic member (the clamping member 810) having greater elasticity than the member forming the other holding parts 230.

[0162] According to the rotation device 1, the transmission of vibration to the IC 300 can be further reduced.

[0163] (25) In the above (22) or (23), one or more of the multiple holding parts 230 are part of the housing 2 (second housing 22), and the IC 300 is elastically held to the housing 2 (second housing 22) by the one or more holding parts 230.

[0164] (26) In any one of (22) to (25) above, the rotating device 1 is configured such that the IC 300 is clamped by a plurality of holding portions 230.

[0165] According to the rotating device 1, the IC 300 can be protected more reliably.

[0166] Incidentally, in the first to third embodiments described above, two terminals have been used as connection terminals: the linear first connection terminal 74 and the second connection terminal 40 having the shape shown in FIG. 3.

[0167] That is, the first connection terminal 74 has one end connected to the sensor 7 and the other end electrically connected to the outside, and the second connection terminal 40 is electrically connected to the first connection terminal 74 directly or via another member.

[0168] In this way, the rotating device 1 is configured to include a linear first connection terminal 74 whose other end is connected to the outside, and a second connection terminal 40 which is connected to this first connection terminal 74 via a connection member such as a wiring board 8, 80, 800, thereby increasing the design freedom of the housing 2 in the rotating device 1 and making it possible to reduce the size of the housing 2.

[0169] On the other hand, the second connection terminal 40 in the first to third embodiments described above has the shape shown in FIG. 3, that is, is formed into a predetermined shape by punching out a metal plate, for example.

[0170] However, the second connection terminal may have a configuration as described below, instead of the above.

[0171] [Variations] Fig. 16 is an explanatory diagram showing a connector section 200 of a rotating device 1 according to a modified example. Fig. 17 is a perspective view of a second connection terminal provided in the connector section 200 of a rotating device 1 according to a modified example. Fig. 18 is an explanatory diagram in cross section showing the positional relationship between the second connection terminal and a sensor housing 72.

[0172] As shown in Fig. 16 and Fig. 17, the second connection terminal 400 according to the modification is formed of a rod-shaped member having a rectangular cross-sectional shape, and has a bent portion 420 formed on one end side, and an extending portion (a part of the second connection terminal 400) 410 extending linearly from the bent portion 420 to the other end. The other end (hereinafter referred to as the tip portion of the extending portion 410) 401 of the second connection terminal 400 and one end (hereinafter referred to as the tip portion on the bent portion 420 side) 402 of the second connection terminal 400 are both slightly tapered and have a substantially quadrangular pyramid shape. In the second connection terminal 400, the extending portion 410 is located at the intermediate position between one end 402 and the other end 401, so the extending portion is also the intermediate portion.

[0173] 16, the bent portion 420 extends in a direction away from the bottom surface of the housing 2, i.e., the second housing 22. On the other hand, as shown in Figures 7A and 7B, a bent portion 74a is formed on the other end side of the first connection terminal 74, and the tip portion on the bent portion 74a side extends in a direction away from the second surface portion 220 forming the bottom surface of the second housing 22. In other words, the tip portion 402 on the bent portion 420 side of the second connection terminal 400 extends in the same direction as the tip portion of the first connection terminal 74.

[0174] Therefore, by connecting the end of the first connection terminal 74 on the bent portion 74a side and the end of the second connection terminal 400 on the bent portion 420 side using the flexible wiring board 8, 80, 800 formed of a flexible film, the first connection terminal 74 and the second connection terminal 400 can be easily connected. Also, as described in the above embodiments, by using the wiring board 8, 80, 800, the motor 3 and the second connection terminal 400 can also be electrically connected.

[0175] 18, the bent portion 420 of the second connection terminal 400 is close enough to the sensor housing 72 to leave a predetermined gap d. This gap d is extremely small in this embodiment. In addition, in the direction from the first connection terminal 74 to the second connection terminal 400, the bent portion 420, the other end of the first connection terminal 74, and the sensor housing 72 are arranged side by side and adjacent to each other.

[0176] Because such a configuration can be realized, the design freedom, including the size of the housing 2, is not reduced as in conventional rotating devices in which the length of the connection terminal extending from the sensor is preset to a specific length (see, for example, JP 2013-5512 A), and this can contribute to miniaturizing the housing 2 and ultimately the rotating device 1.

[0177] 17, a flange portion 430 is provided near the bent portion 420 in the extending portion 410 of the second connection terminal 400. Meanwhile, as shown in FIG. 16, a holding portion 201 provided in the connector portion 200 formed in the housing 2 is provided with a predetermined number (five in this example) of recesses 202 for arranging the flange portion 430 of the second connection terminal 400 in a stored state. The second connection terminal 400 is held with the flange portion 430 inserted in the recesses 202. Therefore, the second connection terminal 400 is firmly held in the housing 2.

[0178] By using the second connection terminal 400 according to the above-described modified example, the rotating device 1 shown below is realized.

[0179] (27) A rotating device 1 comprising: a motor 3; a gear (a transmission gear 6 or an output gear 5) that transmits the rotation of the motor 3 to the outside; a sensor 7; a plurality of linear connecting terminals (e.g., a first connecting terminal 74 and a second connecting terminal 400); and a housing 2 that accommodates the gear (the transmission gear 6 or the output gear 5), the sensor 7, and the connecting terminals (e.g., the first connecting terminal 74 and the second connecting terminal 400), wherein the rotation angle or number of rotations of the output gear 5 can be detected by the sensor 7; one connecting terminal 74 of the plurality of connecting terminals has one end connected to the sensor 7 directly or via another member and the other end electrically connected to the outside, and the other connecting terminal 40 has one end 402 connected to the motor 3 directly or via another member and the other end 401 electrically connected to the outside.

[0180] Alternatively, a rotating device 1 comprising a motor 3, gears (transmission gear 6 and output gear 5) that transmit the rotation of the motor 3 to the outside, a sensor 7 that detects the rotation angle of the output gear 5, a linear first connection terminal 74, and a second connection terminal 400, the first connection terminal 74 having one end connected to the sensor 7 and the other end electrically connected to the outside, the second connection terminal 400 being electrically connected to the first connection terminal 74 directly or via another member, and the second connection terminal 400 further having a bent portion 420 formed on one end side and an extension portion 410 which is a part extending linearly from the bent portion 420 to the other end (tip 401).

[0181] According to such a rotating device 1, the degree of freedom in designing the housing 2 of the rotating device 1 is increased, and the housing 2 can be made smaller in size.

[0182] (28) In the rotating device 1 according to (27), the other component is a wiring board.

[0183] According to the rotation device 1, there is no need to prepare a new dedicated connecting member, and a conventional product can be used as is, thereby reducing costs.

[0184] (29) In the above (27) or (28), the rotating device 1 has a flange portion 430 at a middle portion between one end 402 and the other end 401 of the plurality of connection terminals 400.

[0185] According to the rotating device 1, the strength of the linear second connection terminal 400 can be improved.

[0186] (30) In the rotating device (1) described above in (29), the housing (2) is provided with a recess (202), and the flanges (430) of the multiple connection terminals (400) are engaged with the recess (202).

[0187] According to the rotation device 1, the second connection terminal 400 can be securely held in the housing 2.

[0188] (31) In the above (30), the rotating device 1 has a bent portion 420 between the flange portion 430 and one end portion 402.

[0189] According to such a rotating device 1, the bent portion 74a of the first connection terminal 74 and the bent portion 420 of the second connection terminal 400 can be easily connected using a predetermined connecting member such as a wiring board 8, 80, 800, and the first connection terminal 74 and the second connection terminal 400 can also be easily electrically connected.

[0190] (32) In the rotating device 1 described above in (28) to (31), the wiring board is formed of a flexible film.

[0191] According to such a rotating device 1, while providing the advantages described above, external vibrations and the like can be absorbed by the wiring boards 8, 80, 800, so that peeling of the solder connecting the first connection terminal 74 and the second connection terminal 400 to the wiring boards 8, 80, 800 can also be prevented.

[0192] (33) In the above items (28) to (32), the sensor 7 includes a sensor substrate 73 having a conductive portion 730, and the wiring substrate 8, 80, 800 and the substrate 73 are electrically connected to the rotating device 1.

[0193] According to the rotating device 1, for example, the wiring boards 8, 80, 800 and the conductive part 730 of the sensor board 73 can be configured to be electrically connected directly without going through the connection terminals 74 or the like.

[0194] (34) In the above (28) to (32), the sensor 7 includes a sensor substrate 73 and a first connection terminal 74 electrically connected to the sensor substrate 73, and the first connection terminal 74 and the wiring substrate 80, 800 are electrically connected to the rotating device 1.

[0195] According to the rotating device 1, for example, the sensor substrate 73 and the first connection terminal 74 can be packaged to provide an easy-to-handle sensor 7.

[0196] Furthermore, by using the second connection terminal 400 according to the modified example, the rotating device 1 shown below can be realized.

[0197] (35) The rotating device 1 in (31) above, wherein the bent portion 420 extends in a direction away from the bottom of the housing 2 (the second surface portion 220 forming the bottom wall of the second housing 22).

[0198] According to such a rotating device 1, the bent portion 74a of the first connection terminal 74 and the bent portion 420 of the second connection terminal 400 can be easily connected using a specified connecting member, and the first connection terminal 74 and the second connection terminal 400 can also be easily electrically connected.

[0199] (36) In any of (27) to (35) above, the sensor 7 includes a sensor housing 72, and the bent portion 420 of the second connection terminal 400, the other end of the first connection terminal 74, and the sensor housing 72 are arranged side by side in the direction from the first connection terminal 74 to the second connection terminal 400.

[0200] According to such a rotating device 1, it is possible to position the sensor housing 72 and the second connection terminal 400 as close as possible to each other, which contributes to the miniaturization of the housing 2 and thus the miniaturization of the rotating device 1.

[0201] Although the present invention has been described above based on each embodiment, it goes without saying that the present invention is not limited to each embodiment, and various modifications can be made without departing from the gist of the present invention. Such modifications made without departing from the gist 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.

[0202] In each embodiment, the rotation angle of the gear can be detected by the sensor unit, but this is not limited to the above, and the rotation angle and / or the number of rotations of the gear may be detected by the sensor unit.

[0203] In each embodiment, the wiring formed on the wiring board and the conductive portion formed on the sensor substrate (sensor substrate) may be electrically connected by a known method such as soldering, without using a connection terminal. Also, the wiring board and the sensor substrate may be fixed with a resin or the like, so that the wiring of the wiring board and the conductive portion of the sensor substrate come into contact with each other and are electrically connected, without using a connection terminal. [Explanation of symbols]

[0204] 1 Rotating device, 2 Housing, 3 Motor, 4 Worm gear, 5 Output gear, 6 Transmission gear, 7 Sensor, 8, 80, 800 Wiring board, 21 First housing, 22 Second housing, 23, 24, 25, 26 Mounting portion, 40 Second connection terminal, 40a Piece, 70 Sensor portion, 72 Sensor housing, 73 Sensor board, 75 Brush, 91 Protrusion, 92 Through hole, 210 First surface portion, 211 First side wall portion, 220 Second surface portion, 222 Second side wall portion, 224 Engagement protrusion, 212 Engagement portion, 213, 223 Protrusion, 200 Connector portion, 100 Air conditioning system, 101 Blower fan, 102 Evaporator, 103 Heater, 104 Louver, 104a Drive shaft, 74 First connection terminal, 74a Bent portion, 61 First transmission gear, 62 Second transmission gear, 51 Output shaft, 30 Main body, 31 Rotating shaft, 33 Terminal, 611 First large diameter portion, 612 First small diameter portion, 621 Second small diameter portion, 622 Second large diameter portion, 50 Recess, 52 Tooth row, 53 Bottom wall, 72a First side portion, 72b Second side portion, 723 First circular hole, 711 Boss portion, 712 Fitting hole, 721 Rectangular hole, 730 Conductive portion, 73a Circular portion, 73b Square portion, 733 Second circular hole, 735 Hole portion, 731 Output portion, 732 Resistance portion, 751, 752 Contact, 734a Lead-out portion, 734b First lead-out portion, 734c Second lead-out part, 201 Holding part, 81 First plane part, 82 Second plane part, 83 Third plane part, 11a~11d Rod-shaped body, 11 Jig, 110 Support stand, 300 IC, 80a First plane part, 80c Third plane part, 80b Second plane part, 225 Holding space, 230 Holding part, 227 Convex part, 810 Holding member, 830 Component mounting surface, 400 Second connection terminal, 420 Bend part, 410 Extension part, 401,402 Tip

Claims

1. a motor having a terminal, a frame having a bottom surface and a top surface in a rotation axis direction, and a rotation shaft; Worm gear and A gear that meshes with the worm gear; A sensor, a wiring board for electrically connecting the motor to an external device; An electronic component mounted on the wiring board; a housing that houses the motor, the wiring board, and the electronic components; Equipped with In the rotation axis direction, the terminal is provided on a bottom surface portion of the frame, The worm gear is attached to a portion of the rotating shaft protruding from a top surface portion of the frame, The wiring board is formed of a flexible film, The electronic component is held in the housing, the housing includes a side wall portion, a space for holding the electronic component, and one or more holding portions provided in the space, The space is located on the side wall portion side with respect to the holding portion. Rotating device.

2. The electronic component is electrically connected to a terminal of the motor via the wiring board. The rotating device according to claim 1 .

3. The wiring board on which the electronic components are mounted is bent. A rotating device according to claim 1 or 2.

4. The wiring board has a component mounting surface on which the electronic components are mounted. A rotating device according to any one of claims 1 to 3.

5. The wiring board is bent, The component mounting surface is disposed in the space. The rotating device according to claim 4.

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