JP2020174532A - Rotary-type resistive position sensor electrically connected with connection terminal, rotary device, and vehicle having air conditioning system including rotary device - Google Patents

Abstract

To provide a rotary device which can inhibit damage to a sensor substrate for detecting a rotation angle and connection failure etc. between the sensor substrate and a terminal, and to provide a vehicle having an air conditioning system including the rotary device.SOLUTION: A rotary device 10 of the invention includes: a motor 30; a plurality of gears 60 which transmit rotation of the motor 30 to the outside; a plurality of first connection terminals 35 electrically connected with a plurality of motor terminals 33 of the motor 30; a sensor substrate 70 having a conductive part 72; a conductive brush 51 which is provided at the gear 60 and comes into contact with the conductive part 72 of the sensor substrate 70; a plurality of second connection terminals 71 electrically connected with the conductive part 72 of the sensor substrate 70; and a flexible wiring board 80 which electrically connects the conductive part 72 of the sensor substrate 70 with the second connection terminals 71.SELECTED DRAWING: Figure 2

Description

The present invention relates to a rotating device and a vehicle having an air conditioning system including the rotating device.

For example, Patent Document 1 discloses a motor actuator (rotating device) that drives a plurality of doors (louvers) provided in the middle of an air passage through which air flows in a vehicle air conditioning system.

The motor actuator (rotating device) of Patent Document 1 is provided with a rotation sensor that detects the rotation position (rotation angle) of the output gear.
The rotation sensor is provided with input / output terminals such as a power supply terminal, a ground terminal, and an output terminal, and these terminals are fixed to a circuit board on which a resistor that serves as a rotation detection pattern of the rotation sensor is formed. There is.

Japanese Unexamined Patent Publication No. 2015-220996

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The present invention provides a rotating device capable of making the electrical wiring between the first connection terminal and the motor terminal of the motor compact and miniaturizing the rotating device, and a vehicle having an air conditioning system equipped with the rotating device. For the purpose of providing, etc.

The present invention is grasped by the following configuration in order to achieve the above object.
(1) The rotating device of the present invention includes a motor, a plurality of gears, a plurality of first connection terminals, a position sensor for detecting the rotation angle of the gears, and a plurality of second connection terminals. The position sensor includes a sensor substrate having a conductive portion and a conductive brush that contacts the conductive portion of the sensor substrate, and the plurality of second connection terminals are directly connected to the conductive portion of the sensor substrate. Alternatively, the first connection terminal and the second connection terminal are electrically connected via other members, and the first connection terminal and the second connection terminal are connection terminals connected to an external connector, and the plurality of first connection terminals are the plurality of second connection terminals. It is arranged on the motor side with respect to the connection terminal, the end face of the first connection terminal and the end face of the sensor board face each other, and the end face of the second connection terminal and the end face of the sensor board face each other. ing.

(2) In the configuration of (1) above, the motor is a DC motor, and the plurality of gears include an output gear and a transmission gear.

(3) In the configuration of (2) above, the conductive brush is provided on the output gear.

(4) In any one of the configurations (1) to (3), the housing includes a housing for accommodating the motor, the gear, and the position sensor, and the housing includes the first connection terminal and the first connection terminal. A connection terminal holding portion for holding the second connection terminal is provided.

(5) In any one of the above configurations (1) to (4), the second connection terminal includes an external connection terminal portion and a flat plate portion forming the end face, and the flat plate of the second connection terminal. A protrusion is provided on the portion.

(6) In any one of the above configurations (1) to (5), the conductive portion of the sensor substrate constitutes a variable resistance portion whose resistance value changes according to the displacement of the contact position of the conductive brush. ing.

(7) The vehicle of the present invention includes a rotating device having any one of the above (1) to (6), and a louver controlled by the rotating device.

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According to the present invention, the electrical wiring between the first connection terminal and the motor terminal of the motor can be made compact, so that the rotating device can be miniaturized.

It is a perspective view of the rotating apparatus of embodiment which concerns on this invention. It is a perspective view which removed the 1st housing of the rotating apparatus of embodiment which concerns on this invention. It is an exploded perspective view of the rotating apparatus of embodiment which concerns on this invention. It is a perspective view which made the 2nd surface part side of the 2nd housing of the rotary apparatus of embodiment which concerns on this invention visible. It is a perspective view which shows the state which attached the conductive brush to the output gear of the embodiment which concerns on this invention. It is a perspective view which looked at the surface of the sensor substrate of embodiment which concerns on this invention on the output gear side. It is a perspective view which showed the 2nd housing, the 1st connection terminal and the 2nd connection terminal of the embodiment which concerns on this invention. It is a schematic diagram for demonstrating the air-conditioning system provided with the rotating apparatus of embodiment which concerns on this invention. It is a figure which shows the vehicle equipped with the air-conditioning system of FIG.

Hereinafter, embodiments for carrying out the present invention (hereinafter, referred to as “embodiments”) will be described in detail with reference to the accompanying drawings.
The same elements are numbered the same throughout the description of the embodiment.
Hereinafter, the holes to be engaged are referred to as engagement holes, and the protrusions to be engaged are referred to as engagement protrusions.

FIG. 1 is a perspective view of the rotating device 10 according to the embodiment of the present invention, FIG. 2 is a perspective view of the rotating device 10 with the first housing 23 removed, and FIG. 3 is an exploded perspective view of the rotating device 10. is there.
As shown in FIG. 1, the rotating device 10 has a first housing 23 having a first surface portion 21 as a surface portion and a first side wall portion 22 provided on the outer peripheral portion of the first surface portion 21, and a second housing 23 as a surface portion. A housing 20 is provided by combining a second housing 27 having a second side wall portion 26 provided on the outer peripheral portion of the surface portion 25 and the second surface portion 25.
Further, the housing 20 is made of a resin material such as polypropylene, polyethylene terephthalate, and ABS.

As shown in FIG. 3, in the first housing 23, a plurality of engaging portions 22b provided on the outer periphery of the first side wall portion 22 and extending toward the second housing 27 side are integrated with the first side wall portion 22. It is formed, and the engaging portion 22b is provided with an engaging hole 22a.

Further, as shown in FIG. 3, the second housing 27 has the engaging portion 22b at a position on the outer periphery of the second side wall portion 26 corresponding to each of the plurality of engaging portions 22b of the first housing 23. A plurality of engaging protrusions 26a that are engaged with the engaging holes 22a are integrally formed on the second side wall portion 26.

Then, by aligning the first housing 23 and the second housing 27 so as to engage the engaging protrusion 26a of the second housing 27 with the engaging hole 22a of the engaging portion 22b of the first housing 23, The first housing 23 and the second housing 27 are integrated to form a housing 20 (see FIG. 1) for accommodating various parts shown in FIGS. 2 and 3.
Specifically, the housing 20 houses a motor 30, a plurality of gears 60, a sensor board 70, a flexible wiring board 80, a first connection terminal 35, and a second connection terminal 71, which will be described later.

In the present embodiment, the first housing 23 is provided with an engaging portion 22b having an engaging hole 22a, and the second housing 27 is provided with an engaging protrusion 26a. However, the second housing 27 is provided with an engaging protrusion 26a. An engaging portion may be provided, and an engaging projection may be provided on the first housing 23.

Further, as shown in FIG. 1, attachment portions A, B, C, and D for attaching the rotating device 10 to the air conditioning system are provided on the outer periphery of the first housing 23.

As shown in FIG. 2, the rotating device 10 includes a motor 30 and an output gear 50 that mechanically outputs the rotation of the rotating shaft 32 of the motor 30 to the outside as various parts housed in the housing 20. It includes a plurality of gears 60, a conductive brush 51 (see FIGS. 3 and 5) provided on the output gear 50 for detecting the rotation angle, and a sensor substrate 70 for detecting the rotation angle of the output gear 50. ..

Further, as various parts housed in the housing 20, the rotating device 10 has two first connection terminals 35 for the motor 30 and a rotation angle from the sensor substrate 70, as shown in FIGS. 2 and 3. Three second connection terminals 71 for input and output to obtain the corresponding rotation angle signal, electrical connection of the first connection terminal 35 and the motor terminal 33 of the motor 30 (see FIG. 3), and the second connection terminal 71 and the sensor. It includes a flexible wiring board 80 for making electrical connections between the boards 70.
The electrical connection means that the two members are electrically connected directly or via another member.
The electrical connections described below are used in this sense.

Then, as shown in FIG. 3, the second housing 27 is provided with an opening 25a in a portion corresponding to the center side of the output gear 50, and is a second surface portion of the second housing 27 of the rotating device 10. As shown in FIG. 4, which is a perspective view in which the 25 side is visible, the engaging portion 50a of the output gear 50 can be accessed from the outside through the opening 25a provided in the second surface portion 25 of the second housing 27. The drive shaft of the louver of the air conditioning system provided in a vehicle such as an automobile (not shown) is engaged with the engaging portion 50a of the output gear 50 through the opening 25a.

Therefore, by rotating the output gear 50, a louver (not shown) provided in the air passage of the air conditioning system can be controlled, and the air passage of the air conditioning system is controlled to have a predetermined opening degree.

(motor)
The motor 30 is a drive device for rotating the output gear 50, and in this embodiment, a DC motor is used as the motor 30.
As shown in FIG. 3, the motor 30 includes a main body 31 having a square columnar outer shape with curved corners, a rotating shaft 32 derived from the first end surface 31a of the main body 31, and a first main body 31. It is provided with a pair of motor terminals 33 that are located on the opposite side of the end surface 31a and are provided so as to project outward from the second end surface 31b facing the first end surface 31a.
The rotating shaft 32 is fixed to a rotor (not shown) housed in the main body 31 of the motor 30.

(Transmission gear)
As shown in FIGS. 2 and 3, the plurality of gears 60 include a transmission gear 40, and the transmission gear 40 transfers the rotation of the rotation shaft 32 of the motor 30 to the output gear 50 at a predetermined gear ratio. It is a gear for transmission, and in this embodiment, three gears (worm gear 41, first second gear 42, and second second gear 43) are used as transmission gear 40.

Specifically, as shown in FIG. 2, the transmission gear 40 includes a worm gear 41 fixed to the rotating shaft 32 (see FIG. 3) of the motor 30, a gear 42a having a large diameter connected to the worm gear 41, and a diameter. The first second gear 42 having the smaller gear 42b, the larger diameter gear 43a connected to the smaller diameter gear 42b in the first second gear 42, and the smaller diameter gear 43b connected to the output gear 50 (FIG. 3). A second two-stage gear 43 having (see) is provided.

In the present embodiment, the first second gear 42 and the second second gear so as to transmit the rotation of the rotation shaft 32 of the motor 30 to the output gear 50 while adjusting the gear ratio using a small space. Although 43 is used, for example, the second second gear 43 may be omitted and the output gear 50 may be connected to the gear 42b having a smaller diameter of the first second gear 42, and the first second gear 42 and The second second gear 43 may be omitted and the output gear 50 may be directly connected to the worm gear 41.

(Output gear)
As described above, the output gear 50 is a gear to which a drive shaft of a louver of an air conditioning system (not shown) is connected and outputs the rotation of the rotation shaft 32 of the motor 30 as a driving force for controlling the drive shaft of the louver.

The output gear 50 is not limited to a mode in which the drive shaft of the louver (not shown) is directly connected, and a gear interposed between the rotating device 10 and the drive shaft of the louver (not shown) may be provided. , The rotating shaft of the intervening gear is connected to the output gear 50.

Then, as shown in FIG. 3, the output gear 50 is formed with two protrusions 52 for fixing the conductive brush 51 provided in contact with the sensor substrate 70 on the surface 50b on the sensor substrate 70 side. ing.

On the other hand, the conductive brush 51 is formed with a through hole 51a into which the protrusion 52 of the output gear 50 is press-fitted.
Therefore, as shown in FIG. 5, which is a perspective view showing a state in which the conductive brush 51 is attached to the output gear 50, the conductive brush is press-fitted into the through hole 51a of the conductive brush 51. By mounting the 51 on the output gear 50, the conductive brush 51 is fixed to the output gear 50.

The method of fixing the conductive brush 51 is not particularly limited, and the conductive brush 51 may be fixed by crimping the end of the protrusion 52 led out through the through hole 51a, and may be fixed by adhesion. You may.

(Sensor board)
For example, air conditioners installed in automobiles are equipped with louvers.
In order to drive and control the louver (not shown) in a predetermined state, it is particularly necessary to control the rotation angle of the output gear 50, and the sensor substrate 70 controls the output of the output gear 50 in order to control the rotation angle. It is a member for detecting the rotation angle of the gear 50.
The resin substrate of the sensor substrate 70 is made of, for example, an epoxy resin.
The thickness of the resin substrate is, for example, about 300 μm to about 1600 μm.
Further, this resin substrate is harder than the flexible wiring board 80 described later.
The sensor board 70 is fixed to a sensor board mounting portion (not shown) provided on the first housing 23 side.

Then, by controlling the rotation of the motor 30 based on the detected rotation angle of the output gear 50, the output gear 50 is rotated so that the louver (not shown) is in a predetermined state.

FIG. 6 is a perspective view of the sensor substrate 70 on the output gear 50 side.
As shown in FIG. 6, the sensor substrate 70 has a through hole 70a in which the rotation shaft (see FIG. 2) of the output gear 50 is arranged, and a conductive portion 72 formed by printing on the outer periphery of the through hole 70a. I have.

The conductive portion 72 is formed on the through hole 70a side and is formed of a conductive material having a small electric resistance and an output portion 72a, and a resistor formed on the outside of the output portion 72a and formed of a conductive material having a large electric resistance. It has a part 72b and.

The output portion 72a is formed so as to surround the through hole 70a along the outer circumference of the through hole 70a, and the ring portion 72aa to which one of the two contacts 51b of the conductive brush 51 shown in FIG. 3 contacts. It includes a lead-out portion 73a drawn from the annular portion 72aa.

Further, the resistance portion 72b is formed in an arc shape along the outer circumference of the annular portion 72aa of the output portion 72a, and the arc-shaped portion in which the other of the two contacts 51b of the conductive brush 51 shown in FIG. 3 contacts. It includes 72ba, a first lead-out portion 73b drawn from one end of the arc-shaped portion 72ba, and a second lead-out portion 73c drawn out from the other end of the arc-shaped portion 72ba.

Then, when the contact position where the contact 51b of the conductive brush 51 (see FIG. 3) comes into contact with the conductive portion 72 configured as described above changes in the circumferential direction of the annular portion 72aa and the arcuate portion 72ba, the first Since it constitutes a variable resistance section in which the resistance value of the path from the lead-out section 73b to the lead-out section 73a changes, a voltage is applied between the first lead-out section 73b and the second lead-out section 73c. When the contact position of the conductive brush 51 (see FIG. 3) is displaced in the circumferential direction of the annular portion 72aa and the arcuate portion 72ba, the voltage between the first lead-out portion 73b and the lead-out portion 73a changes, and the voltage changes. The rotation angle of the output gear 50 can be detected by.

In this embodiment, the sensor substrate 70 and the conductive brush 51 constitute a rotary type resistance position sensor in which the resistance value changes as the contact position of the conductive brush 51 with respect to the conductive portion 72 is displaced in the circumferential direction. However, the configuration of the conductive portion 72 does not have to be limited to the configuration of the present embodiment.

For example, a notch is provided in the arc-shaped portion 72ba from the outer peripheral side (or the inner peripheral side) at a constant pitch along the arc-shaped portion 72ba, and when the contact portion 51b of the conductive brush 51 is located in this notch, no electricity is applied. (Hereinafter, also referred to as OFF), energization (hereinafter, also referred to as ON) is performed at a position where there is no notch, and the rotation angle of the output gear 50 is detected based on the number of detected ON-OFF. May be good.

(1st connection terminal and 2nd connection terminal)
The first connection terminal 35 and the second connection terminal 71 are connection terminals connected to an external connector connected to the rotating device 10.

The two first connection terminals 35 are electrically connected to the two motor terminals 33, which are the power supply terminals of the motor 30, via the flexible wiring board 80 described later, and the three second connection terminals 71 are the sensor boards described above, respectively. The three lead-out units (lead-out unit 73a, first lead-out unit 73b, and second lead-out unit 73c) of the conductive portion 72 of 70 are electrically connected via a flexible wiring board 80 described later.

FIG. 7 is a perspective view showing the second housing 27, the first connection terminal 35, and the second connection terminal 71.
In the present embodiment, the first connection terminal 35 and the second connection terminal 71 are formed into the same shape by punching a metal plate material.

In FIG. 7, the terminal portion (hereinafter referred to as the connection terminal holding portion 90) included in the housing 20 (see FIG. 1), more specifically, from the connection terminal holding portion 90 formed in the second housing 27. It shows a state in which one of the second connection terminals 71 is removed, and as can be seen from the removed second connection terminal 71, the second connection terminal 71 is a portion to be inserted and connected to an external connector (not shown). It has an external connection terminal portion 71a and a flat plate portion 71b connected to the external connection terminal portion 71a and having substantially the same thickness as the external connection terminal portion 71a.

As described above, since the first connection terminal 35 is also formed in the same shape as the second connection terminal 71, the external connection terminal portion 35a, which is a portion to be inserted and connected to an external connector (not shown), and the external connection terminal portion It is connected to 35a and has a flat plate portion 35b having substantially the same thickness as the external connection terminal portion 35a.

The connection terminal holding portion 90 provided in a part of the second housing 27 corresponding to the position where the external connector is connected includes a plurality of recesses 91 arranged in parallel.
The recess 91 has a shape that is recessed in the thickness direction of the housing 20, and extends in a direction from the outside toward the inside of the housing (in the illustrated example, the longitudinal direction of the first connection terminal 35 and the second connection terminal 71). ing.
A plurality of first connection terminals 35 and a plurality of second connection terminals 71 are arranged in these recesses 91, respectively.
In the connection terminal holding portion 90, the first connection terminal 35 and the second connection terminal 71 are arranged in parallel so that the flat plate portions (flat plate portion 35b and flat plate portion 71b) of the first connection terminal 35 and the second connection terminal 71 face each other. Hold in.

By making the shapes of the first connection terminal 35 and the second connection terminal 71 the same shape in this way, it is possible to improve the manufacturing efficiency of the terminals and reduce the component cost.
Further, by holding the first connection terminal 35 and the second connection terminal 71 in parallel so that the flat plate portions (flat plate portion 35b and flat plate portion 71b) oppose each other, the space for arranging the terminals is reduced. The size of the rotating device 10 can be reduced.

On the other hand, as shown in FIG. 7, the flat plate portion 35b of the first connection terminal 35 is provided with the first protrusion 35c.
The first protrusion 35c has a shape protruding from the flat plate portion 35b of the first connection terminal 35.
Further, the first protrusion 35c has a shape protruding from the inside of the recess 91 toward the flexible wiring board 80 when the first connection terminal 35 is held in the recess 91 of the connection terminal holding portion 90. ..
Similarly, the flat plate portion 71b of the second connection terminal 71 is provided with a second protrusion 71c, and the second protrusion 71c has a shape protruding from the flat plate portion 71b of the second connection terminal 71. There is.
Further, the second protrusion 71c has a shape protruding from the inside of the recess 91 toward the flexible wiring board 80 when the second connection terminal 71 is held in the recess 91 of the connection terminal holding portion 90. ..

By providing such protrusions (first protrusion 35c and second protrusion 71c) on the connection terminals (first connection terminal 35 and second connection terminal 71), the flexible wiring board 80 (FIG. 5) described later is provided. 2 and FIG. 3) can be stably connected.

Further, in the present embodiment, as shown in FIG. 2, the first connection terminal 35 is provided closer to the motor 30 than the second connection terminal 71, so that the first connection terminal 35 and the motor terminal of the motor 30 are provided. The wiring distance for electrical connection with 33 is shortened.

Therefore, the electrical wiring between the first connection terminal 35 and the motor terminal 33 of the motor 30 can be made compact, so that the rotating device 10 can be miniaturized.

(Flexible wiring board)
As shown in FIG. 3, the flexible wiring board 80 is roughly divided into three surfaces (three planes in the illustrated example), and specifically, the first connection terminal 35 and the second connection terminal 71. The first surface portion 81 on one end side connected to, the second surface portion 82 on the other end side connected to the motor terminal 33 of the motor 30, and the intermediate surface portion 83 connecting the first surface portion 81 and the second surface portion 82. , Is equipped.
In the illustrated example, the first surface portion 81, the second surface portion 82, and the intermediate surface portion 83 are each flat.

The first surface portion 81 has a first hole portion 81a that engages with the first protrusion 35c of the first connection terminal 35 and a second hole portion that engages with the second protrusion 71c of the second connection terminal 71. 81b is provided, and soldering is performed by engaging the first hole portion 81a and the second hole portion 81b with the first protrusion portion 35c and the second protrusion portion 71c. Since a firm electrical connection can be made, poor contact can be suppressed.
In the flexible wiring board 80, for example, an adhesive layer is formed on a film (resin substrate) having a thickness of about 12 μm to 50 μm, and a conductor having a thickness of, for example, about 12 μm to about 50 μm is printed or pasted on the adhesive layer. Has a structure.
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 a flexible wiring board 80 is a substrate that can be restored to the shape before bending even if it is bent at an angle of 90 degrees or more.

Further, on the first surface portion 81 of the flexible wiring board 80, three lead-out portions (lead-out portion 73a, first lead-out portion 73b, and three lead-out portions) of the three second connection terminals 71 and the conductive portion 72 of the sensor substrate 70 shown in FIG. Three conductive lines for electrically connecting the second lead-out unit 73c) are provided, and at the ends of the conductive lines, three lead-out units (lead-out unit 73a, first) of the conductive portion 72 of the sensor substrate 70, respectively. Lands 81c for solder connection are provided on the first lead-out unit 73b and the second lead-out unit 73c).

Therefore, the second connection terminal 71 and the sensor board 70 are connected by the flexible wiring board 80, and the work of crimping the second connection terminal 71 to the sensor board 70 does not occur. The sensor substrate 70 is not damaged due to the crimping work.

Further, even if the second connection terminal 71 or the sensor board 70 vibrates due to the vibration of a vehicle such as an automobile, it is flexible before a strong stress is applied to the solder connection portion between the flexible wiring board 80 and the sensor board 70. Since the flexible wiring board 80 can change its shape (or absorb vibration) and avoid applying strong stress to the solder connection portion, it is possible to avoid cracks and breakage in the solder connection portion. ..

From the viewpoint of suppressing damage to the sensor board 70 and defective electrical connection between the sensor board 70 and the second connection terminal 71, the flexible wiring board 80 is used for the first connection as in the present embodiment. It is not necessary to electrically connect the terminal 35 and the motor terminal 33 of the motor 30.

However, as described below, it is preferable that the flexible wiring board 80 also electrically connects the first connection terminal 35 and the motor terminal 33 of the motor 30.

For example, it is possible to individually connect the first connection terminal 35 and the motor terminal 33 of the motor 30 using a lead wire, but if this is done, the lead wire is thin and easily damaged and is handled. Since it is difficult, it takes time and effort, and the manufacturing cost is high.

On the other hand, in the flexible wiring board 80, a conductive pattern is formed at once on a flexible substrate capable of cutting out a large number of flexible wiring boards 80 by means such as printing at once, and a press cutting machine or the like is formed so as to become individual flexible wiring boards 80 at once. Since it can be formed by being cut by a lead wire, the manufacturing cost is hardly increased even if it is manufactured as having an electrical connection portion between the first connection terminal 35 and the motor terminal 33 of the motor 30. Since it is easier to handle than the above, it does not require much labor for connection work, so that it is possible to reduce the manufacturing cost.

In the present embodiment, as shown in FIG. 3, a hole 82a that engages with the motor terminal 33 of the motor 30 is also provided on the second surface 82 of the flexible wiring board 80 connected to the motor terminal 33 of the motor 30. By engaging the hole 82a with the motor terminal 33 of the motor 30 and soldering, a firm electrical connection can be made, and the electrical connection is more stable than when connecting with a lead wire. The sex is also obtained.

Therefore, as in the present embodiment, it is preferable that the flexible wiring board 80 also electrically connects the first connection terminal 35 and the motor terminal 33 of the motor 30.

By the way, in the present embodiment, the first surface portion 81 and the second surface portion 82 form a predetermined angle via the intermediate surface portion 83.
Specifically, as shown in FIG. 3, the first surface portion 81 and the second surface portion 82 are substantially orthogonal to the intermediate surface portion 83 connecting the first surface portion 81 and the second surface portion 82 of the flexible wiring board 80. The bent portion 83a to be arranged in the above is provided, and the shape of the bent portion 83a is also a bent portion provided with a folded structure.
Instead of providing the folded structure, the bent portion 83a may be provided with a curved structure.
In the illustrated example, the direction in which the first surface portion 81 extends and the direction in which the second surface portion 82 extends intersect with each other by the bent portion 83a.
The bent portion 83a is provided on the way from the first connection terminal 35 to the motor terminal 33 (see FIG. 3) of the motor 30, and the angle formed by the first surface portion 81 and the second surface portion 82 in response to vibration or the like (see FIG. 3). It shows springiness while changing the folding angle).

For example, if the first connection terminal 35 and the motor terminal 33 of the motor 30 are connected by the flexible wiring board 80 as linearly as possible, the motor 30 and the first connection terminal 35 are flexible when the motor 30 and the first connection terminal 35 vibrate due to the vibration of the vehicle. Tensile stress or the like is likely to be applied to the connection portion between the wiring board 80 and the first connection terminal 35 or the connection portion between the motor terminal 33 and the flexible wiring board 80, resulting in poor connection or disconnection of the flexible wiring board 80. It becomes easy to occur.

Therefore, in the present embodiment, on the way from the first connection terminal 35 to the motor terminal 33 of the motor 30, a folded structure that deforms so that the bending angle changes according to vibration or the like and exhibits springiness (restoring force) is provided. The bent portion 83a provided is interposed.

In this way, the bent portion 83a provided with the folded structure is deformed so that the bent angle changes according to vibration or the like, and exhibits springiness (restoring force).
Therefore, it is possible to avoid applying tensile stress or the like to the connection portion between the first connection terminal 35 and the flexible wiring board 80 or the connection portion between the motor terminal 33 and the flexible wiring board 80 by the bent portion 83a, and a connection failure occurs. It is possible to suppress the occurrence of disconnection of the flexible wiring board 80 itself.

However, even if the bent portion 83a is configured by only one bending without a folded structure, a portion having an extra length can be formed as compared with the case of wiring as linearly as possible, and tensile stress, etc. Since the influence of the above can be reduced, such a bent portion may be used, but as in the present embodiment, the bent portion 83a provided with the folded structure may be less susceptible to the influence of tensile stress and the like. It is suitable because it can be done.

Therefore, the reliability of the rotating device 10 can be improved by providing the flexible wiring board 80 with a bent portion 83a having a folded structure as in the present embodiment.

As in the present embodiment, assuming that the intermediate surface portion 83 is provided with the bent portion 83a having the folded structure, as can be seen from FIG. 3, the conductive pattern formed on the flexible wiring board 80 is provided. Is provided on the side where the motor terminal 33 protrudes when the motor terminal 33 is passed through the hole 82a, and the protrusions (first protrusion 35c and first protrusion 35c and second) of the first connection terminal 35 and the second connection terminal 71 are provided. The protrusions (first protrusion 35c and second protrusion 71c) are provided on the side where the protrusions (first protrusion 35c and second protrusion 71c) protrude when the two protrusions 71c) are passed through the holes (first hole 81a and second hole 81b). Therefore, there is also an effect that workability at the time of soldering is improved.

The case where the rotating device 10 as described above is used in, for example, an air conditioning system for a vehicle such as an automobile, and is simply used for an air conditioning system for a vehicle will be described below.
FIG. 8 is a schematic view for explaining the air conditioning system 100 including the rotating device 10 of the embodiment, and FIG. 9 is a diagram showing a vehicle equipped with the air conditioning system 100 of FIG.

As shown in FIG. 8, the air conditioning system 100 includes a blower fan 101, an evaporator 102, a heater 103, and a louver 104, which are arranged in the front portion FR (see FIG. 9) of the vehicle.

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

Further, the heater 103 is arranged downstream of the evaporator 102 in the air flow direction, the louver 104 is arranged between the evaporator 102 and the heater 103, and the louver 104 flows from the evaporator 102 side to the heater 103 side. By controlling the amount of air supplied, the temperature of the air is adjusted to an appropriate temperature.

The air adjusted to an appropriate temperature is further supplied to the vehicle interior from an air outlet provided in the vehicle interior via a duct or the like. In the above-mentioned air conditioning system 100, for example, The rotating shaft 104a of the louver 104 is connected to the engaging portion 50a (see FIG. 4) of the output gear 50 of the rotating device 10 described above.
Therefore, as described above, the rotation device 10 controls the rotation of the louver 104 (see the double-headed arrow in FIG. 8) so that the louver 104 is in a predetermined state.

The above is only an example of the rotating device 10 in the air conditioning system 100. For example, in the air conditioning system 100, the air inside the vehicle is circulated and the air outside the vehicle is taken into the vehicle interior. The flow path (duct path) may be switched, and a louver is also provided at the switching portion.
Therefore, the rotating device 10 can also be preferably used to control the louver provided in the switching portion.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the embodiments.
In the above embodiment, the case where the sensor substrate 70 is arranged so as to detect the rotation angle of the output gear 50 and the conductive brush 51 is provided on the output gear 50 has been described, but the detection of the rotation angle is the output. It is not limited to the gear 50.

For example, if the relationship between the rotation angle of one of the transmission gears 40 and the driving state of a louver (not shown) is obtained, the rotation angle of the transmission gear is detected and the rotation angle is set to the rotation angle. By controlling the rotation of the motor 30 based on this, it is possible to control the drive of a louver (not shown).
Therefore, the sensor substrate 70 for detecting the rotation angle is arranged so as to detect the rotation angle of any one of the transmission gears 40, and the conductive brush 51 is provided on the gear for detecting the rotation angle. May be good.

In the above embodiment, the rotation angle of the output gear 50 is detected by the sensor, but the present invention is not limited to this, and if the rotation angle of the output gear 50 can be controlled, the rotation angle of the output gear 50 is not limited to the rotation angle of the output gear 50. The rotation angle of the gear may be detected by a sensor.

Further, in the above embodiment, the intermediate surface portion 83 is provided with a bent portion 83a for arranging the first surface portion 81 and the second surface portion 82 so as to be substantially orthogonal to each other, but the first surface portion is not limited to this. The intermediate surface portion 83 may be provided with a bent portion 83a that intersects the direction in which the 81 extends and the direction in which the second surface portion 82 extends.

The DC motor may be a brushed motor. The main body 31 of the brushed motor may be provided with a brush, a commutator, a bracket provided with the brush and the commutator, a rotor, and a stator.

As described above, it goes without saying that various changes can be made without departing from the gist of the present invention, and the technical scope of the present invention also includes various changes without departing from the gist of the present invention. It is included in the above, which is clear to those skilled in the art from the description of the scope of claims.

Hereinafter, some embodiments will be described.
If the input / output terminals are fixed to the circuit board by crimping or the like, the circuit board may be damaged during the crimping operation.
Further, if the input / output terminals are directly fixed to the circuit board, stress is applied to the connection portion between the circuit board and the terminal due to the influence of vehicle vibration or the like. Poor connection may occur due to fatigue and cracking or breaking.

One embodiment takes the above situation as an example of the problem, and provides a rotating device capable of suppressing damage to the sensor substrate for detecting the rotation angle, poor connection between the sensor substrate and the terminal, and the like. The purpose is to provide a vehicle having an air conditioning system equipped with the rotating device, and the like.

In order to achieve this purpose, it is grasped by the following configuration.
(1) The rotating device of one embodiment includes a motor, a plurality of gears for transmitting the rotation of the motor to the outside, a plurality of first connection terminals electrically connected to a plurality of motor terminals of the motor, and conductivity. A sensor substrate having a portion, a conductive brush provided on the gear and in contact with the conductive portion of the sensor substrate, a plurality of second connection terminals electrically connected to the conductive portion of the sensor substrate, and the sensor substrate. A flexible wiring board for electrically connecting the conductive portion of the above and the second connection terminal is provided.

(2) In the configuration of (1) above, the motor is a DC motor, and the plurality of gears include an output gear and a transmission gear.

(3) In the configuration of (2) above, the conductive brush is provided on the output gear.

(4) A housing that accommodates the motor, the gear, the sensor board, the flexible wiring board, the first connection terminal, and the second connection terminal in any one of the configurations (1) to (3). The housing includes a connection terminal holding portion that holds the first connection terminal and the second connection terminal, and the first connection terminal and the second connection terminal are an external connection terminal portion and the external. The connection terminal holding portion has a flat plate portion connected to the connection terminal portion, and holds the first connection terminal and the second connection terminal in parallel, and the first connection terminal and the second connection terminal. The flat plate portions of the above face each other.

(5) In the configuration of (4) above, the connection terminal holding portion has a plurality of recesses in which the first connection terminal and the second connection terminal are arranged, respectively, and is formed on a flat plate portion of the second connection terminal. Is provided with a second protrusion protruding from the recess, and the flexible wiring board has a second hole that engages with the second protrusion.

(6) In the configuration of the above (5), the flat plate portion of the first connection terminal is provided with a first protrusion protruding from the recess, and the flexible wiring board is the first connection terminal and the first. The first surface portion is provided with a first surface portion connected to the two connection terminals, a second surface portion connected to the motor terminal, and an intermediate surface portion connecting the first surface portion and the second surface portion. The second hole portion has a first hole portion that engages with the first protrusion portion of the first connection terminal, and the second surface portion has a plurality of hole portions connected to the plurality of motor terminals. are doing.

(7) In the configuration of (6) above, the intermediate surface portion has a bent portion.

(8) In the configuration of (7) above, the bent portion is provided with a folded structure.

(9) In any one of the above configurations (1) to (8), the conductive portion of the sensor substrate constitutes a variable resistance portion whose resistance value changes according to the displacement of the contact position of the conductive brush. ing.

(10) In any one of the configurations (1) to (9), the first connection terminal is provided closer to the motor than the second connection terminal.

(11) In any one of the above (1) to (10), the shapes of the plurality of first connection terminals and / or the shapes of the plurality of second connection terminals are the same.

(12) The vehicle of one embodiment includes a rotating device having any one of the above (1) to (11) configurations, and a louver controlled by the rotating device.

According to the above, a vehicle provided with a rotating device capable of suppressing damage to the sensor board for detecting the rotation angle, poor connection between the sensor board and the terminal, and a vehicle having an air conditioning system equipped with the rotating device. Can be provided.

10 ... Rotating device, 20 ... Housing, 21 ... First surface portion, 22 ... First side wall portion, 22a ... Engagement hole, 22b ... Engagement portion, 23 ... First housing, 25 ... Second surface portion, 25a ... Opening, 26 ... Second side wall, 26a ... Engagement protrusion, 27 ... Second housing, 30 ... Motor, 31 ... Main body, 31a ... First end face, 31b ... Second end face, 32 ... Rotating shaft, 33 ... Motor terminal, 35 ... 1st connection terminal, 35a ... External connection terminal, 35b ... Flat plate, 35c ... 1st protrusion, 40 ... Transmission gear, 41 ... Warm gear, 42 ... 1st 2nd gear, 42a ... Diameter Large gear, 42b ... Small diameter gear, 43 ... Second two-stage gear, 43a ... Large diameter gear, 43b ... Small diameter gear, 50 ... Output gear, 50a ... Engagement part, 50b ... Surface, 51 ... Conductive brush, 51a ... through hole, 51b ... contact, 52 ... protrusion, 60 ... gear, 70 sensor board, 70a ... through hole, 71 ... second connection terminal, 71a ... external connection terminal part, 71b ... flat plate part, 71c ... 2nd protrusion, 72 ... Conductive part, 72a ... Output part, 72aa ... Circular part, 72b ... Resistance part, 72ba ... Arc-shaped part, 73a ... Derivation part, 73b ... First derivation part, 73c ... Second derivation Part, 80 ... Flexible wiring board, 81 ... First surface part, 81a ... First hole part, 81b ... Second hole part, 81c ... Land, 82 ... Second surface part, 82a ... Hole part, 83 ... Intermediate surface part, 83a ... Folded part, 90 ... Connection terminal holding part, 91 ... Recessed part, 100 ... Air conditioning system, 101 ... Blower fan, 102 ... Evaporator, 103 ... Heater, 104 ... Louver, 104a ... Rotating shaft, A, B, C, D ... Mounting part, FR ... Front part

Claims (8)

With the motor
With multiple gears
With multiple first connection terminals
A position sensor that detects the rotation angle of the gear and
With multiple second connection terminals
Is equipped with
The position sensor includes a sensor substrate having a conductive portion and a conductive brush that contacts the conductive portion of the sensor substrate.
The plurality of second connection terminals are electrically connected to the conductive portion of the sensor substrate directly or via another member.
The first connection terminal and the second connection terminal are connection terminals connected to an external connector.
The plurality of first connection terminals are arranged on the motor side with respect to the plurality of second connection terminals.
The sensor substrate includes a surface on which the conductive portion is formed and an end surface surrounding the surface on which the conductive portion is formed.
In the longitudinal direction of the first connection terminal, the end face of the first connection terminal and the end face surrounding the surface on which the conductive portion is formed are opposed to each other.
A rotating device in which an end surface of the second connection terminal and an end surface surrounding a surface on which the conductive portion is formed face each other in the longitudinal direction of the second connection terminal. The plurality of first connection terminals are connected to the motor via a resin substrate.
The rotating device according to claim 1, wherein the plurality of second connection terminals are connected to the sensor substrate via the resin substrate. The motor is a DC motor
The rotating device according to claim 1 or 2, wherein the plurality of gears include an output gear and a transmission gear. The rotating device according to claim 3, wherein the conductive brush is provided on the output gear. A housing for accommodating the motor, the gear, the position and the sensor,
The rotating device according to any one of claims 1 to 4, wherein the housing includes a connection terminal holding portion for holding the first connection terminal and the second connection terminal. The second connection terminal includes an external connection terminal portion and a flat plate portion forming the end face.
The rotating device according to any one of claims 1 to 5, wherein a protrusion is provided on the flat plate portion of the second connection terminal. The rotating device according to any one of claims 1 to 6, wherein the conductive portion of the sensor substrate constitutes a variable resistance portion whose resistance value changes according to the displacement of the contact position of the conductive brush. .. The rotating device according to any one of claims 1 to 7.
A vehicle having an air conditioning system with a louver controlled by the rotating device.

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