Rotary position sensor, rotating device, and vehicle

Abstract

The present invention provides a rotary position sensor, a rotary device and a vehicle, wherein the rotary device includes: a shell having a first shell and a second shell; a motor having a motor terminal; a plurality of gears, including an output gear that outputs the rotation of the motor to the outside; and a sensor that detects the rotation angle of the gear, wherein the sensor is arranged in the second shell and includes: a base, which is provided with a resistor; a first connecting terminal, which is electrically connected to the outside and the resistor; and a second connecting terminal, which is electrically connected to the outside and the motor terminal, wherein the first connecting terminal and the second connecting terminal are arranged on a surface of the base on the first shell side, wherein the motor terminal is located on the second shell side relative to the base, wherein in the base, the second connecting terminal is arranged on the motor side relative to the first connecting terminal, and the connecting portion of the second connecting terminal electrically connected to the motor terminal is arranged on a surface of the base on the first shell side.

Description

[0001] This application is a divisional application of a patent application with application number 201710441911.1, application date June 13, 2017, and invention name “rotating device and vehicle having an air conditioning system having the rotating device”. Technical Field

[0002] The present invention relates to a rotary position sensor, a rotary device, and a vehicle equipped with an air conditioning system having the rotary device. Background Art

[0003] For example, Patent Document 1 discloses a motor actuator (rotating device) for driving a plurality of doors (dampers) provided in the middle of an air passage for circulating air in a vehicle air conditioning system.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2015-220969 Summary of the invention

[0007] Furthermore, in the motor actuator (rotating device) of Patent Document 1, the relay terminal is directly connected to the motor terminal. Figure 4 As can be seen from the content shown, the fixing portion for clamping and fixing the relay terminal is formed on the lower shell constituting the outer shell (shell), and by fixing the relay terminal to the fixing portion, it is possible to suppress the relay terminal from vibrating violently under the action of vibration, thereby suppressing poor connection at the connection portion between the motor terminal and the relay terminal.

[0008] However, when a fine structure for holding a thin member such as a relay terminal is formed in the outer shell (housing), a mold for molding the outer shell (housing) becomes complicated, which causes a problem of increasing the manufacturing cost.

[0009] The present invention takes the above situation as an example of a subject, and an object of the present invention is to provide a rotating device that suppresses an increase in the manufacturing cost of a housing, and to provide a vehicle equipped with an air conditioning system having the rotating device.

[0010] In order to achieve the above object, the present invention is grasped by the following structure.

[0011] (1) The rotating device of the present invention includes: a motor; a plurality of gears; and a sensor that detects the rotation angle of one of the plurality of gears; the sensor includes: a first connecting terminal that is electrically connected to the outside; and a base that is used to configure the first connecting terminal; a second connecting terminal for the motor is configured on the base.

[0012] (2) In the configuration of (1) above, the motor is a DC motor, and the plurality of gears include a transmission gear that transmits the rotation of the motor to an output gear.

[0013] (3) In the structure of (1) or (2) above, the base portion has a terminal arrangement portion for arranging the first connection terminal and the second connection terminal.

[0014] (4) In the structure of any one of the above (1) to (3), the rotating device has a flexible printed circuit board that electrically connects the motor and the second connecting terminal, the second connecting terminal has a connecting portion extending in a direction away from the base, and the flexible printed circuit board has an electrical connecting portion, and the electrical connecting portion has a hole portion that engages with the connecting portion.

[0015] (5) In the configuration of (4) above, the connection portion is a bent portion formed by bending one end side of the second connection terminal in a direction away from the base portion.

[0016] (6) In the structure of (4) or (5) above, the flexible printed circuit board includes: one end face, which is connected to the connecting portion of the second connecting terminal; the other end face, which is connected to the motor; and an intermediate face, which connects the one end face and the other end face; the intermediate face has a bending portion.

[0017] (7) In the structure of the above (6), the bending portion is provided with a folding structure.

[0018] (8) In the structure described in any one of (1) to (7) above, the sensor includes: a resistor substrate, which forms a resistor electrically connected to the first connecting terminal; a conductive brush, which is in contact with the resistor; a rotating body, which rotates integrally with the gear, and the conductive brush is provided on the rotating body; and a covering portion, which is provided at a position opposite to the rotating body and forms a sensor housing together with the base.

[0019] (9) In the structure of the above (3), the gear is the output gear, and the output gear and the sensor are arranged on the side (lateral side) of the main body of the motor in a direction approximately orthogonal to the rotation axis direction of the motor, the first connecting terminal is arranged on the side of the terminal arrangement portion away from the motor, and the second connecting terminal is arranged on the side close to the motor.

[0020] (10) In the structure described in any one of (1) to (9) above, the plurality of gears include a transmission gear and an output gear, and the rotating device has a housing that accommodates the motor, the transmission gear, the output gear, and the sensor.

[0021] (11) The vehicle of the present invention includes an air conditioning system, which includes: a rotating device having a structure as described in any one of (1) to (10) above; and a damper controlled by the rotating device.

[0022] According to the present invention, it is possible to provide a rotating device that suppresses an increase in the manufacturing cost of a casing, and to provide a vehicle having an air conditioning system including the rotating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a perspective view of the rotating device according to the embodiment of the present invention.

[0024] Figure 2 This is a perspective view of the rotating device according to the embodiment of the present invention, with the first housing removed.

[0025] Figure 3 It is an exploded perspective view of the rotating device according to the embodiment of the present invention.

[0026] Figure 4 This is a perspective view of the rotating device according to the embodiment of the present invention, in which the second surface side of the second casing can be seen.

[0027] Figure 5 This is a perspective view showing a state where a motor terminal of a motor and a second connection terminal for a motor provided in a sensor according to an embodiment of the present invention are connected by a flexible printed circuit board.

[0028] Figure 6 This is a schematic diagram for explaining an air conditioning system including a rotating device according to an embodiment of the present invention.

[0029] Figure 7 It means having Figure 6 Diagram of the air conditioning system of a vehicle.

[0030] Description of Reference Numerals

[0031] 10: Rotating device; 20: Housing; 21: First face portion; 22: First side wall portion; 22a: Engagement hole; 22b: Engagement portion; 23: First housing; 25: Second face portion; 25a: Opening portion; 26: Second side wall portion; 26a: Engagement protrusion; 27: Second housing; 30: DC motor; 31: Main body portion; 31a: First end surface; 31b: Second end surface; 32: Rotating shaft; 33: Motor terminal; 35: Second connection terminal; 35a: Connection portion; 40: Transmission gear; 41: Worm gear; 42: First secondary gear; 42a: Gear with large diameter; 42b: Gear with small diameter; 43: 2nd secondary gear; 43a: gear with large diameter; 43b: gear with small diameter; 50: output gear; 51: engaging portion; 60: gear; 70: sensor; 71: 1st connecting terminal; 72: resistor substrate; 73: base; 74: covering portion; 75: terminal configuration portion; 80: flexible printed circuit board; 81: other end surface; 81a: hole portion; 82: one end surface; 82a: hole portion; 83: bending portion; 100: air conditioning system; 101: fan; 102: evaporator; 103: heater; 104: damper; 104a: rotating shaft; A, B, C, D: mounting portion; FR: front part of the vehicle. DETAILED DESCRIPTION

[0032] Hereinafter, a mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail based on the drawings.

[0033] In addition, throughout the description of the embodiments, the same elements are denoted by the same reference numerals.

[0034] The hole portion that engages is referred to as an engaging hole portion, and the protrusion that engages is referred to as an engaging protrusion.

[0035] Figure 1 is a perspective view of a rotating device 10 according to an embodiment of the present invention. Figure 2 is a perspective view of the rotating device 10 with the first housing 23 installed. Figure 3 It is an exploded perspective view of the rotating device 10 .

[0036] like Figure 1 As shown, the rotating device 10 has a shell 20, which is composed of a first shell 23 and a second shell 27. The first shell 23 includes a first face portion 21 as a face portion and a first side wall portion 22 arranged on the outer periphery of the first face portion 21; the second shell 27 includes a second face portion 25 as a face portion and a second side wall portion 26 arranged on the outer periphery of the second face portion 25.

[0037] In addition, the housing 20 is formed of a resin material such as polypropylene, polyethylene terephthalate, or ABS.

[0038] In addition, the rotation axis direction refers to the longitudinal direction of the rotation axis.

[0039] like Figure 3 As shown, a plurality of engaging portions 22b are integrally formed on the first side wall portion 22 of the first shell 23. The plurality of engaging portions 22b are arranged on the outer periphery of the first side wall portion 22 and extend toward the second shell 27. Engaging holes 22a are provided on the engaging portions 22b.

[0040] In addition, if Figure 3 As shown, a plurality of engaging protrusions 26a are integrally formed on the second side wall portion 26 of the second shell 27. The plurality of engaging protrusions 26a are arranged on the outer periphery of the second side wall portion 26 at positions corresponding to the plurality of engaging portions 22b of the first shell 23, and are used to engage with the engaging holes 22a of the engaging portions 22b.

[0041] Then, the first housing 23 and the second housing 27 are combined by engaging the engaging hole 22a of the engaging portion 22b of the first housing 23 with the engaging protrusion 26a of the second housing 27, so that the first housing 23 and the second housing 27 are integrated to form a housing for accommodating the first housing 23 and the second housing 27. Figure 2 and Figure 3 The housing 20 of the various components shown (see Figure 1 ).

[0042] In addition, in this embodiment, the engaging portion 22 b having the engaging hole 22 a is provided on the first shell 23 and the engaging protrusion 26 a is provided on the second shell 27 . However, the engaging portion may be provided on the second shell 27 and the engaging protrusion may be provided on the first shell 23 .

[0043] In addition, if Figure 3 As shown, mounting portions A, B, C, and D for mounting the rotating device 10 on the air conditioning system are provided on the outer periphery of the first housing 23 .

[0044] like Figure 2 and Figure 3 As shown, the rotating device 10 includes a housing 20 (see Figure 1 ) includes a motor 30, a plurality of gears 60 and a sensor 70, wherein the plurality of gears 60 includes a rotating shaft 32 (refer to Figure 3 )'s rotation is output to an external mechanical output gear 50, and a sensor 70 detects the rotation angle of the output gear 50.

[0045] In addition, if Figure 3 As shown, an opening 25 a is provided in a portion of the second housing 27 corresponding to the center side of the output gear 50 .

[0046] Figure 4 It is a perspective view of the rotating device 10 from the side where the second surface portion 25 of the second housing 27 can be seen.

[0047] like Figure 4 As shown, through the opening portion 25a provided on the second surface portion 25 of the second shell 27, the engaging portion 51 of the output gear 50 can be reached from the outside. For example, the driving shaft of the damper of the air-conditioning system provided in a vehicle such as an automobile (not shown) can be engaged with the engaging portion 51 of the output gear 50.

[0048] Therefore, by rotating the output gear 50 , a damper (not shown) provided in an air passage (hereinafter also referred to as an air flow passage) of the air conditioning system can be controlled, and for example, the air passage of the air conditioning system can be controlled to a predetermined opening degree.

[0049] (Motor)

[0050] The motor 30 is a driving device for rotating the output gear 50 , and a DC motor is used in this embodiment.

[0051] like Figure 3 As shown, the motor 30 includes: a main body 31 having a quadrangular prism-shaped appearance with bent corners; a rotating shaft 32 led out from the first end face 31a of the main body 31; and a pair of motor terminals 33 located on the opposite side of the first end face 31a of the main body 31, which are protruding outward from the second end face 31b opposite to the first end face 31a.

[0052] In addition, the rotating shaft 32 is fixed to a rotor accommodated in the main body 31 of the motor 30 .

[0053] (Transmission gear)

[0054] like Figure 2 and Figure 3 As shown, the multiple gears 60 include a transmission gear 40, which is a gear used to transmit the rotation of the rotating shaft 32 of the motor 30 to the output gear 50 at a specified gear ratio. In the present embodiment, the transmission gear 40 uses three gears (a worm gear 41, a first secondary gear 42, and a second secondary gear 43).

[0055] Specifically, if Figure 2 As shown, the transmission gear 40 includes a worm gear 41 fixed to the rotating shaft 32 of the motor 30 (see Figure 3 ); a first secondary gear 42 having a large diameter gear 42a connected to the worm gear 41 and a small diameter gear 42b; and a second secondary gear 43 having a large diameter gear 43a connected to the small diameter gear 42b in the first secondary gear 42 and a small diameter gear 43b connected to the output gear 50 (refer to Figure 3 ).

[0056] In addition, in the present embodiment, in order to transmit the rotation of the rotating shaft 32 of the motor 30 to the output gear 50 by adjusting the gear ratio in a smaller space, the first secondary gear 42 and the second secondary gear 43 are used. However, for example, the second secondary gear 43 may be omitted, and the output gear 50 may be connected to the gear 42b with a smaller diameter of the first secondary gear 42. The first secondary gear 42 and the second secondary gear 43 may also be omitted, and the output gear 50 may be directly connected to the worm gear 41.

[0057] (Output gear)

[0058] As described above, the output gear 50 is connected to the drive shaft of the damper of the air conditioning system (not shown) and is a gear for outputting the rotation of the rotating shaft 32 of the motor 30 as a driving force for controlling the drive shaft of the damper.

[0059] In addition, the invention is not limited to directly connecting the drive shaft of the damper (not shown) to the output gear 50 , and a gear may be provided between the rotating device 10 and the drive shaft of the damper (not shown). In this case, the rotating shaft of the interposed gear is connected to the output gear 50 .

[0060] (sensor)

[0061] For example, an air conditioner installed in a car has a damper.

[0062] In order to control the drive of the damper (not shown) to a predetermined state, it is particularly necessary to control the rotation angle of the output gear 50 . The sensor 70 is a sensor for detecting the rotation angle of the output gear 50 in order to control the rotation angle of the output gear 50 .

[0063] Then, the rotation of the motor 30 is controlled based on the detected rotation angle of the output gear 50 , so that the output gear 50 is rotated so that the damper (not shown) is brought into a predetermined state.

[0064] In this embodiment, the sensor 70 uses a rotary resistive position sensor, such as Figure 2 and Figure 3 As shown, the sensor 70 includes: three first connecting terminals 71 for input and output, which are used to obtain a rotation angle signal corresponding to the rotation angle of the output gear 50; a resistor substrate 72, which is formed by printing a resistor electrically connected to the first connecting terminal 71 on a resin substrate; a rotating body (not shown), which has an unillustrated conductive brush in contact with the resistor and rotates integrally with the output gear 50 whose rotation angle is to be detected; a base 73, which is used to configure the above-mentioned components; and a covering portion 74, which is arranged at a position corresponding to the unillustrated rotating body, and together with the base 73 forms a shell (hereinafter referred to as the sensor shell) possessed by the sensor.

[0065] The resin substrate of the resistor substrate 72 is formed of, for example, epoxy resin.

[0066] Furthermore, the thickness of the resin substrate is, for example, approximately 300 μm to approximately 1600 μm.

[0067] Furthermore, the resin substrate is harder than the flexible printed wiring board 80 .

[0068] In addition, in the present embodiment, a resistive position sensor is adopted, on which a not-shown rotating body is rotatably provided on a base 73, which engages with the rotating shaft of the output gear 50 and rotates integrally with the output gear 50, and a resistive substrate 72 is arranged separately from the rotating body. An not-shown conductive brush provided on the resistive substrate 72 side of the rotating body changes its position while contacting the resistance of the resistive substrate 72 as the rotating body rotates, thereby changing the output resistance value. However, a sensor for detecting the rotation angle may also use a sensor of the following type, which uses a sensor substrate having a conductive portion that is repeatedly turned on and off by a conductive brush as the rotating body rotates, and detects the rotation angle based on the number of times the conductive brush is turned on and off.

[0069] Moreover, as shown in the dotted box, a terminal configuration portion 75 for configuring terminals is provided on the base 73, and the terminal configuration portion 75 is not only used to configure the three first connection terminals 71 for input and output of the sensor 70, but also used to configure the two second connection terminals 35 for the motor 30.

[0070] Specifically, if Figure 2 As shown, the output gear 50 and the sensor 70 are arranged side by side in a direction (X-axis direction) that is approximately orthogonal to the direction of the rotating shaft 32 of the motor 30 (Z-axis direction) and approximately parallel to the second surface 25 of the second shell 27. In order to be able to arrange the second connecting terminal 35 for the motor 30 in the terminal arrangement portion 75, the base 73 of the sensor 70 is formed as a part of the terminal arrangement portion 75 extending from the sensor 70 toward the motor 30 side.

[0071] Furthermore, the first connection terminal 71 is arranged on the side of the terminal arrangement portion 75 away from the motor 30, and the second connection terminal 35 is arranged on the side close to the motor 30, so that the motor terminal 33 of the motor 30 and the second connection terminal 35 for the motor 30 can be electrically connected at a shorter distance.

[0072] In addition, electrical connection means that two members are electrically connected directly or via other members.

[0073] In this way, the base 73 of the sensor 70 is fixed with not only the three first connection terminals 71 for input and output of the sensor 70 but also the two second connection terminals 35 for the motor 30, thereby eliminating the need for the housing 20 (see Figure 1 ) is provided with two second connection terminals 35 for fixing the motor 30, which suppresses the complexity of the mold used to form the housing 20 and can reduce the manufacturing cost of the housing 20.

[0074] On the other hand, instead, it is necessary to enable the terminal arrangement portion 75 of the base portion 73 of the sensor 70 to be able to arrange the two second connection terminals 35 for the motor 30 .

[0075] However, observation Figure 2 and Figure 3 It can be seen that in order to be able to configure the two second connecting terminals 35, it is sufficient to adopt a design that expands the terminal configuration portion 75 toward the motor 30 side. Therefore, the mold used to form the base 73 will not become complicated, and the manufacturing cost will not increase. Considering the total cost required for the entire product, the manufacturing cost can be suppressed.

[0076] In the present embodiment, the first connecting terminal 71 and the second connecting terminal 35 are fixed to the terminal configuration portion 75 of the base 73 of the sensor 70 by adhesive fixation or the like, but, for example, a protrusion corresponding to each terminal (the first connecting terminal 71 and the second connecting terminal 35) may be formed on the terminal configuration portion 75, and a hole corresponding to the protrusion may be provided on each terminal (the first connecting terminal 71 and the second connecting terminal 35).

[0077] In this case, each terminal is fixed to the terminal arrangement portion 75 by press-fitting the protrusion of the terminal arrangement portion 75 into the hole of each terminal (the first connection terminal 71 and the second connection terminal 35 ).

[0078] When such fixing is performed, only protrusions are formed on the planar terminal arrangement portion 75 . Therefore, a mold or the like for forming the base portion 73 does not become complicated, and the manufacturing cost does not increase.

[0079] Furthermore, by disposing the second connection terminal 35 at the base 73, it is possible to avoid the second connection terminal 35 from being in contact with the housing 20 (see Figure 1 ) components within the device, thereby improving reliability.

[0080] Furthermore, by integrating the three first connection terminals 71 for input and output of the sensor 70 and the two second connection terminals 35 for the motor 30 on the base 73, it is possible to prevent the terminal storage from becoming complicated, thereby achieving a design that makes the entire rotating device 10 compact.

[0081] Then, the two second connection terminals 35 for the motor 30 arranged and fixed to the terminal arrangement portion 75 of the base portion 73 in this manner are electrically connected to the motor terminals 33 of the motor 30 via the flexible printed circuit board 80 .

[0082] The flexible printed wiring board 80 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.

[0083] The film is formed of a resin material having insulating properties such as polyimide and polyester.

[0084] Furthermore, the conductor is formed of a metal material such as copper.

[0085] In addition, the adhesive layer is formed of epoxy resin or acrylic resin.

[0086] Such a flexible printed circuit board 80 is a substrate that can return to its original shape even when bent at an angle of 90 degrees or more.

[0087] The electrical connection between the second connection terminal 35 for the motor 30 and the motor terminal 33 may be a connection using a lead wire.

[0088] When using a lead wire, the lead wire itself is thin and difficult to handle. Therefore, from the viewpoint of good handleability, it is preferable to use a flexible printed circuit board 80 as in the present embodiment.

[0089] Therefore, by making electrical connection between the second connection terminals 35 for the motor 30 and the motor terminals 33 using the flexible printed circuit board 80 , the assembly work of the rotating device 10 can be facilitated, and thus the manufacturing cost can be reduced.

[0090] On the other hand, in this embodiment, by designing the shape of the flexible printed circuit board 80, etc., the reliability of the connection between the second connection terminal 35 for the motor 30 and the flexible printed circuit board 80 and the connection between the motor terminal 33 and the flexible printed circuit board 80 is improved. Figure 3 and Figure 5 Provide explanation.

[0091] Figure 5 It is a perspective view showing a state where the motor terminal 33 of the motor 30 and the second connection terminal 35 for the motor 30 provided in the sensor 70 are connected by the flexible printed circuit board 80 .

[0092] like Figure 3 and Figure 5 As shown, the second connection terminal 35 for the motor 30 has a connection portion 35 a extending in a direction away from the base 73 , and the connection portion 35 a is formed as a bent portion in which one end side of the second connection terminal 35 is bent in a direction away from the base 73 .

[0093] In the example shown in the drawings, the connection portion 35 a extends from the base portion 73 toward the first surface portion 21 of the housing 20 .

[0094] The flexible printed circuit board 80 has one end surface 82 connected to the connection portion 35 a of the second connection terminal 35 for the motor 30 , and an electrical connection portion having a hole 82 a engaged with the connection portion 35 a is provided on the one end surface 82 .

[0095] Therefore, by engaging the connection portion 35a with the hole portion 82a and performing soldering, a strong electrical connection can be made, and thus poor contact can be suppressed.

[0096] Furthermore, the flexible printed circuit board 80 has another end surface 81 connected to the motor terminal 33 of the motor 30 , and the other end surface 81 is also provided with an electrical connection portion having a hole portion 81 a engaged with the motor terminal 33 .

[0097] Therefore, by engaging the motor terminal 33 with the hole portion 81 a and performing soldering, a strong electrical connection can be made, and thus poor contact can be suppressed.

[0098] In addition, the flexible printed circuit board 80 has a middle surface that connects one end surface 82 connected to the connecting portion 35a of the second connecting terminal 35 of the motor 30 and the other end surface 81 connected to the motor terminal 33 of the motor 30, and the middle surface is provided with a bending portion 83 that arranges the one end surface 82 and the other end surface 81 approximately orthogonally. Figure 3 As shown, the bending portion 83 is formed as a bending portion provided with a folding structure.

[0099] The bent portion 83 may have a curved structure instead of a folded structure.

[0100] In the example shown in the figure, due to the presence of the bent portion 83 , the extending direction of the one end surface 82 and the extending direction of the other end surface 81 intersect with each other.

[0101] The bent portion 83 is provided midway between the second connection terminal 35 and the motor terminal 33 of the motor 30 , and changes the angle (bending angle) between the other end surface 81 and the one end surface 82 in accordance with vibration or the like, thereby exhibiting elasticity.

[0102] For example, when the second connection terminal 35 of the motor 30 and the motor terminal 33 of the motor 30 are connected in a straight line using the flexible printed circuit board 80, if the motor 30 and the sensor 70 vibrate due to the vibration of the vehicle, etc., the connection portion between the second connection terminal 35 for the motor 30 and the flexible printed circuit board 80, and the connection portion between the motor terminal 33 and the flexible printed circuit board 80 are easily subjected to the effects of tensile stress, etc., resulting in poor connection and the flexible printed circuit board 80 being easily broken.

[0103] On the other hand, in the present embodiment, the second connection terminal 35 of the motor 30 and the motor terminal 33 of the motor 30 are connected by the flexible printed circuit board 80 via the bent portion 83 having the folded-back structure.

[0104] By adopting such a structure, the folded portion 83 having the folded structure is deformed so as to change the folding angle according to vibration or the like, and exhibits elasticity.

[0105] Therefore, by utilizing the bent portion 83, it is possible to prevent the connection portion between the second connection terminal 35 for the motor 30 and the flexible printed circuit board 80, and the connection portion between the motor terminal 33 and the flexible printed circuit board 80 from being subjected to tensile stress, etc., thereby preventing the occurrence of poor connection and the occurrence of wire breakage of the flexible printed circuit board 80 itself.

[0106] In addition, even if the bent portion 83a is configured as a structure that is bent only once without a folding structure, a portion that becomes an excess length can be formed compared to the case of wiring in a straight line, thereby reducing the influence of tensile stress, etc., and therefore, such a bent portion can also be used. However, if the bent portion 83a provided with a folding structure is used as in the present embodiment, it can be less susceptible to the influence of tensile stress, etc., and in this regard, it is preferable to use a bent portion with a folding structure.

[0107] Therefore, by providing the bent portion 83 a having a folded-back structure on the flexible printed wiring board 80 as in the present embodiment, the reliability of the rotating device 10 can be improved.

[0108] The rotating device 10 as described above is used in, for example, an air conditioning system of a vehicle such as an automobile. Hereinafter, a case where the rotating device 10 is used in an air conditioning system of a vehicle will be briefly described.

[0109] Figure 6 1 is a schematic diagram for explaining an air conditioning system 100 having a rotating device 10 according to an embodiment. Figure 7 It means having Figure 6 FIG. 1 is a diagram of an air conditioning system 100 for a vehicle.

[0110] like Figure 6 As shown, the air conditioning system 100 includes a front portion FR (see Figure 7 )'s fan 101, evaporator 102, heater 103 and damper 104.

[0111] More specifically, the fan 101 is disposed on the suction port 100a side of the air conditioning system 100, and the evaporator 102 for cooling the air sent out from the fan 101 is disposed on the downstream side in the flow direction of the air.

[0112] In addition, a heater 103 is arranged on the downstream side of the air flow direction of the evaporator 102, and a damper 104 is arranged between the evaporator 102 and the heater 103. The damper 104 adjusts the temperature of the air to an appropriate temperature by controlling the supply amount of air flowing from the evaporator 102 side to the heater 103 side.

[0113] The air adjusted to an appropriate temperature is then supplied to the vehicle interior from an outlet provided in the vehicle interior through a duct or the like. In the above-mentioned air conditioning system 100, for example, the rotating shaft 104a of the damper 104 is connected to the engaging portion 51 of the output gear 50 of the above-mentioned rotating device 10 (see Figure 4 ).

[0114] Therefore, as described above, the rotation of the damper 104 is controlled by the rotating device 10 (refer to Figure 6 ), thereby bringing the damper 104 into a specified state.

[0115] In addition, the above only shows an example of the rotating device 10 in the air-conditioning system 100. For example, the air-conditioning system 100 sometimes needs to switch the air flow path (duct path) between circulating the air in the vehicle interior and introducing the outside air into the vehicle interior, and a damper is also provided in the switching part.

[0116] Therefore, the rotating device 10 can also be well applied to the case of controlling a damper provided in the switching portion.

[0117] As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to embodiment.

[0118] In the above embodiment, the sensor 70 is arranged so as to detect the rotation angle of the output gear 50 , but the detection of the rotation angle is not limited to the detection of the rotation angle of the output gear 50 .

[0119] For example, by only needing to determine the relationship between the rotation angle of one of the multiple transmission gears 40 and the driving state of the damper (not shown), the rotation angle of the transmission gear can be detected by the sensor 70, and the rotation of the motor 30 can be controlled based on the rotation angle, thereby controlling the drive of the damper (not shown).

[0120] Therefore, the sensor 70 for detecting the rotation angle may be arranged so as to detect the rotation angle of the transmission gear 40 .

[0121] Furthermore, in the above-described embodiment, a rotary resistive position sensor is used as the sensor 70 . However, the sensor 70 does not necessarily need to be a rotary resistive position sensor, and may be a non-contact rotary position sensor.

[0122] However, the structure of the resistance position sensor is a structure that enables the conductive brush and the resistor to be in firm physical contact, so it is not easily affected by vehicle vibration and causes detection failure, etc. Therefore, the sensor 70 is preferably a rotary resistance position sensor.

[0123] In the above embodiment, the rotation angle of the output gear 50 is detected by a sensor, but the present invention is not limited thereto. As long as the rotation angle of the output gear 50 can be controlled, the rotation angle of other gears may be detected by a sensor instead of the output gear 50 .

[0124] Furthermore, in the above embodiment, one end side of the second connection terminal 35 for the motor 30 is formed as a bent portion, but a bent portion may be provided between a portion of the second connection terminal 35 facing the base portion 73 and the connection portion 35 a .

[0125] In this case, the connection portion 35 a serves as an end portion of the second connection terminal 35 .

[0126] In addition, in the above embodiment, a bending portion 83 is provided on the middle surface so that one end surface 82 and the other end surface 81 are arranged approximately orthogonally, but it is not limited to this. A bending portion 83 can also be provided on the middle surface so that the extension direction of one end surface 82 and the extension direction of the other end surface 81 intersect.

[0127] In the above description, the case where the rotating device 10 is used for air conditioning of a vehicle such as an automobile is shown, but the rotating device 10 is not limited to being used for air conditioning of a vehicle, and can also be preferably used for transportation such as an airplane.

[0128] As described above, the present invention can be subjected to various changes without departing from the scope of the main purpose, which is also self-evident. The solutions obtained by carrying out various changes without departing from the scope of the main purpose are also included in the protection scope of the present invention. For those skilled in the art, these solutions are obvious according to the records in the claims.

Claims

1. A rotating device, comprising: A housing having a first housing and a second housing; A motor having a plurality of motor terminals; a plurality of gears including an output gear for outputting the rotation of the motor to the outside; as well as a sensor that detects the rotation angle of the gear, The sensor is arranged in the second housing. The sensor comprises: a base configured with a resistor; a plurality of first connection terminals electrically connected to the outside and the resistor; and a plurality of second connection terminals, which are electrically connected to the outside and electrically connected to the motor terminals via other components, The plurality of first connection terminals and the plurality of second connection terminals are arranged on a surface of the base portion on the first housing side. The sensor and the motor are arranged in a first direction in which the plurality of first connection terminals and the plurality of second connection terminals are arranged. The motor terminal is located on the second housing side relative to the base. In the base, the second connection terminal is arranged on the motor side relative to the first connection terminal. A connection portion of the second connection terminal electrically connected to the motor terminal is disposed on a surface of the base portion on the first housing side.

2. The rotating device according to claim 1, wherein: The other component is a flexible printed circuit board.

3. The rotating device according to claim 2, wherein: The motor comprises: a main body having a first end surface in the direction of the rotation axis and a second end surface located on the opposite side of the first end surface; the plurality of motor terminals arranged on the second end surface; and a rotation axis led out from the first end surface; The flexible printed circuit board is arranged between the plurality of motor terminals and the plurality of second connection terminals in a radial direction of the second end surface. The flexible printed circuit board includes a folding portion, The bending portion is provided with a folding structure or a bending structure, The bending portion is deformed in a manner of changing a bending angle and exhibits elasticity.

4. The rotating device according to any one of claims 1 to 3, wherein: The connection portion of the second connection terminal has a bent portion bent toward the first housing.

5. The rotating device according to any one of claims 1 to 3, wherein: The sensor comprises a sensor housing, The sensor housing includes the base portion and a cover portion.

6. The rotating device according to claim 5, wherein: The sensor comprises: a resistor substrate having the resistor formed thereon to be electrically connected to the first connection terminal; a conductive brush in contact with the resistor; a rotating body that rotates integrally with the gear, the conductive brush being disposed on the rotating body; and The cover portion is disposed at a position opposite to the rotating body and forms a sensor housing together with the base portion.

7. The rotating device according to any one of claims 1 to 3, wherein: The gear is an output gear, The output gear and the sensor are arranged on a lateral side of the main body of the motor that is substantially orthogonal to the direction of the rotation axis of the motor.

8. A vehicle comprising an air conditioning system, The air conditioning system includes: The rotating device according to any one of claims 1 to 3; as well as A damper is controlled by the rotating device.

9. A rotary position sensor, comprising: resistance; a base portion provided with the resistor; Covering part; A plurality of first connection terminals electrically connected to the outside and the resistor; as well as a plurality of second connection terminals electrically connected to the outside and another member different from the resistor, The cover portion and the base portion form a shell, In the direction in which the plurality of first connection terminals are arranged side by side, a portion of the base is arranged side by side with another portion of the base, The plurality of first connection terminals and the plurality of second connection terminals are arranged on a surface of the base portion on the side of the cover portion. The plurality of first connection terminals are arranged on a portion of the base portion, In a first direction in which the plurality of first connection terminals and the plurality of second connection terminals are arranged, a portion of the base and another portion of the base are arranged. The plurality of second connection terminals are disposed at another portion of the base.

10. The rotary position sensor according to claim 9, comprising: a conductive brush in contact with the resistor; a rotating body, on which the conductive brush is arranged, The rotating body is arranged on the base.

11. The rotary position sensor according to claim 9, wherein: The plurality of first connection terminals and the plurality of second connection terminals extend in a direction in which a surface of the base portion on the cover portion side extends.

12. The rotary position sensor according to any one of claims 9 to 11, wherein: Another portion of the base portion is exposed relative to the cover portion.

13. The rotary position sensor according to any one of claims 9 to 11, wherein: The second connection terminal is exposed relative to the cover portion.

14. The rotary position sensor according to any one of claims 9 to 11, wherein: The connection portion of the second connection terminal includes a bent portion bent from the base portion toward another member different from the resistor.

15. A rotating device comprising: The rotary position sensor according to any one of claims 9 to 11; A housing having a first housing and a second housing; A motor having a plurality of motor terminals; as well as a plurality of gears, including an output gear for outputting the rotation of the motor to the outside, The plurality of second connection terminals are electrically connected to the outside via a flexible printed circuit board. The other component is a flexible printed circuit board.

16. The rotating device according to claim 15, wherein: The motor comprises: a main body having a first end face in the direction of the rotation axis and a second end face located on the opposite side of the first end face; the plurality of motor terminals arranged on the second end face; and a rotation axis extending from the first end face, The flexible printed circuit board is arranged between the plurality of motor terminals and the plurality of second connection terminals in a radial direction of the second end surface. The flexible printed circuit board includes a folding portion, The bending portion is provided with a folding structure or a bending structure, The bending portion is deformed in a manner of changing a bending angle and exhibits elasticity.

17. A vehicle comprising an air conditioning system, The air conditioning system includes: The rotating device according to claim 15; as well as A damper is controlled by the rotating device.

18. A rotating device comprising: A motor comprising: a main body having a first end face in a rotation axis direction and a second end face located on an opposite side of the first end face; a plurality of motor terminals disposed on the second end face; and a rotation axis extending from the first end face; Multiple gears; sensor; a plurality of second connection terminals electrically connected to the plurality of motor terminals; and a flexible printed circuit board electrically connecting the plurality of motor terminals and the plurality of second connection terminals, One of the plurality of gears is a worm gear fixed to the rotating shaft, The flexible printed circuit board is arranged between the plurality of second connection terminals and the plurality of motor terminals in a radial direction of the second end surface. The flexible printed circuit board includes a folding portion, The bending portion is provided with a folding structure or a bending structure, The bending portion is deformed in a manner of changing a bending angle and exhibits elasticity.

19. The rotating device according to claim 18, wherein: The flexible printed circuit board includes one end surface connected to the second connection terminal, another end surface connected to the plurality of motor terminals, and an intermediate surface connecting the one end surface and the other end surface. The intermediate surface includes the bent portion.

20. The rotating device according to claim 18, wherein: The bent portion is provided midway between the plurality of second connection terminals and the motor.

21. The rotating device according to claim 18, wherein: The sensor comprises: resistance; a base portion provided with the resistor; Covering part; a plurality of first connection terminals electrically connected to the outside and the resistor; and The plurality of second connection terminals, The plurality of second connection terminals are arranged on the base portion located on the motor side relative to the first connection terminal. The first connection terminal and the plurality of second connection terminals are arranged on a surface of the base portion on the cover portion side.

22. The rotating device according to claim 21, wherein: The cover portion and the base portion form a housing of the sensor.

23. The rotating device according to claim 21, wherein: The sensor comprises: a conductive brush in contact with the resistor; a rotating body on which the conductive brush is arranged, The rotating body is arranged on the base.

24. A vehicle comprising an air conditioning system, The air conditioning system includes: The rotating device according to any one of claims 18 to 23; as well as A damper is controlled by the rotating device.

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