JP2017022871A - Motor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor device capable of reducing the number of components required for wiring and reducing the workload in an assembling process.SOLUTION: The motor device 1 includes a power line board 30 with a power connector 20 integrated on its front surface, and a signal line board 60 having a signal connector 50 integrated on its surface. The power line board 30 and the signal line board 60 are arranged side by side with the surfaces thereof facing the rotation axis direction of the electric motor 10, and are disposed so that the signal line board 60 falls within a range of the rotational axis direction where the power connector 20 is located.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a motor device.

  In the electric motor, for example, as shown in Patent Document 1, a power connector is connected to a coil terminal via a bus bar. Patent Document 2 discloses a motor device in which an electric motor and an angle detector are unitized. The motor device of Patent Literature 2 executes operation control of the electric motor based on a control signal input from the outside and a detection result of the angle detector. Thus, the electric motor distributes a part of the electric power input to the motor device and outputs a driving force.

JP 2006-296147 A JP 2010-280245 A

  By the way, in addition to the type in which a control device is included in the motor device as in Patent Document 2, there is a type of motor device whose operation is controlled by an external device. In such a case, a power line that connects the plurality of coil terminals of the electric motor to the power connector and a signal line that connects the plurality of sensor terminals and the signal connector of the angle detector are required. For this reason, there are concerns about an increase in the number of parts and an increase in work load in the assembly process of the motor device.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a motor device that can reduce the number of parts required for wiring and reduce the work load in the assembly process.

(Claim 1) A motor device according to the present invention corresponds to an electric motor having a plurality of coil terminals, a power connector having a number of power connector pins corresponding to the plurality of coil terminals, and the coil terminals. A power line for electrically connecting the power connector pins is wired, and a power line substrate on which the power connector is integrally provided on the surface, a plurality of sensor terminals, and a rotation angle of the electric motor. An angle detector to detect, a signal connector having a number of signal connector pins corresponding to a plurality of the sensor terminals, and a signal line for electrically connecting the signal connector pins corresponding to the sensor terminals are wired. And a signal line board on which the signal connector is integrally provided.
The power line board and the signal line board are arranged side by side with the surfaces facing the rotation axis direction of the electric motor, and the signal line is within the range of the rotation axis direction where the power connector is located. It arrange | positions so that a board | substrate may be settled.

  According to the first aspect of the present invention, the motor device is a type whose operation is controlled by an external device, and wiring in the device is made by the power line substrate and the signal line substrate. Thereby, compared with the wiring using a bus bar, the number of parts required for wiring can be reduced, and the work load in the assembly process can be reduced. Further, the power line board and the signal line board are arranged side by side in the direction of the rotation axis so as to be within the thickness of the power connector. Thereby, the dimension of the rotating shaft direction in a motor apparatus can be made small, and size reduction of a motor apparatus can be achieved.

It is a top view showing the whole motor device in an embodiment. It is II-II sectional drawing in FIG. It is a wiring diagram which shows the relationship between an electric motor and a power line board | substrate. It is a perspective view showing a power line board and a power connector. It is a perspective view showing a signal line substrate and a signal connector. It is a wiring diagram which shows the relationship between an angle detector and a signal wire board.

  Hereinafter, an embodiment in which a motor device of the present invention is embodied will be described with reference to the drawings. The motor device is configured by unitizing an electric motor and an angle detector. Further, the motor device is a type whose operation is controlled by an external device. This external device is a device that supplies power to the electric motor in accordance with the rotation angle signal output from the motor device.

<Embodiment>
(Configuration of motor device 1)
As shown in FIGS. 1 and 2, the motor device 1 includes a motor shaft 5, an electric motor 10, a power connector 20, a power line board 30, a resolver 40, a signal connector 50, and a signal line board. 60 and a bracket 70. The motor shaft 5 is a shaft member that rotates about the rotation axis Ar of the motor device 1.

(Electric motor 10)
In the present embodiment, the electric motor 10 is a three-phase motor that is rotated by being supplied with electric power from the outside of the motor device 1. The electric motor 10 has a plurality of systems capable of rotating the motor rotor 14 independently of each other. Specifically, as shown in FIG. 3, the electric motor 10 includes the first system motor coils 11U, 11V, and 11W and the second system motor coils 12U, 12V, and 12W as teeth of the same motor stator 13. It consists of two systems constructed by winding.

  The first system motor coils 11U, 11V, 11W have first coil positive terminals 11Up, 11Vp, 11Wp and first coil negative terminals 11Um, 11Vm, 11Wm. Second system motor coils 12U, 12V, 12W have second coil positive terminals 12Up, 12Vp, 12Wp and second coil negative terminals 12Um, 12Vm, 12Wm. The total of 12 coil terminals 11Up to 11Wp, 11Um to 11Wm, 12Up to 12Wp, and 12Um to 12Wm (hereinafter also simply referred to as “coil terminals Tc”) are respectively in a predetermined phase and radial position at the rotational axis Ar direction. Formed on one side (upper side in FIG. 2).

  A motor rotor 14 fixed to the outer peripheral surface of the motor shaft 5 is disposed on the inner peripheral side of the motor stator 13. The motor rotor 14 is configured, for example, by embedding a plurality of permanent magnets in the rotor core so that the magnetic poles are alternately switched in the circumferential direction. The motor rotor 14 is rotationally driven by a magnetic field generated by the first system motor coils 11U, 11V, 11W and the second system motor coils 12U, 12V, 12W.

  The motor stator 13 of the electric motor 10 is fixed to the inner peripheral surface of the motor housing 16. The motor housing 16 is formed in a bottomed cylindrical shape as an overall shape. A through hole is formed in the bottom of the motor housing 16 so that a driven member that is rotationally driven by the motor device 1 can be connected to the motor shaft 5. Further, a bracket 70 described later is fixed to the opening side of the motor housing 16 (upper side in FIG. 2). The motor housing 16 and the bracket 70 rotatably support the motor shaft 5 via bearings.

(Power connector 20)
The power connector 20 is a connector used for connection to an external device so that controlled electric power can be supplied from the external device to the electric motor 10. The power connector 20 has a number (3) of first power connector pins 21Un, 21Vn, 21Wn corresponding to a total of three first coil positive terminals 11Up, 11Vp, 11Wp in the first system. The power connector 20 has a second power connector pin 22Un, 22Vn, 22Wn in a quantity (3) corresponding to the total number of first coil positive terminals 11Up, 11Vp, 11Wp in the second system.

  Here, the first system motor coils 11U, 11V, 11W and the second system motor coils 12U, 12V, 12W are Y-connected in the present embodiment. Therefore, the three first coil negative terminals 11Um, 11Vm, 11Wm of the first system are electrically connected to each other. Similarly, the three second coil negative terminals 12Um, 12Vm, and 12Wm of the second system are electrically connected to each other.

  With such a configuration, the power connector 20 has the same number of power connector pins 21Un to 21Wn, 22Un to 22Wn (hereinafter simply referred to as “power connector pins”) as many as the number of phases (six phases) of the electric motor 10. Also referred to as “Pd”). As shown in FIG. 2, each of the power connector pins Pd is formed in an L shape and is fixed at one end to a connector body 25 that also serves as a connector housing. The other end side of the power connector pin Pd is formed to extend in the direction of the rotation axis Ar at different positions.

(Power line board 30)
The power line substrate 30 is a plate member formed of an insulating material. In the present embodiment, the power line substrate 30 is formed in an annular shape as a whole as shown in FIG. Further, as shown in FIG. 2, the power line substrate 30 is arranged in the direction of the rotation axis Ar with respect to the electric motor 10 and is disposed on the outer peripheral side of the resolver 40 described later.

  The power line board 30 is provided with first power lines 31U, 31V, 31W, a first neutral line 31N, second power lines 32U, 32V, 32W, and a second neutral line 32N. First power line 31U to 31W and second power line 32U to 32W (hereinafter also simply referred to as “power line Ld”), and first neutral line 31N and second neutral line 32N (hereinafter simply referred to as “neutral line”) Ln ”) are appropriately arranged on the surfaces on both sides of the power line substrate 30 so as not to short-circuit each other, as shown in FIG.

  The power connector 20 is integrally provided on the surface of the power line substrate 30. In the present embodiment, as shown in FIG. 2, the power line board 30 and the power connector 20 are sequentially disposed on the bracket 70, so that the power connector 20 is fixed at a predetermined position on the power line board 30. The power line Ld and the neutral line Ln are provided with through-holes that are continuous with holes provided at predetermined positions of the power line substrate 30 at both ends or an intermediate part as necessary.

  Here, the power connector 20 is provided at a predetermined position on the power line substrate 30 as described above, so that the power lines Ld respectively corresponding to the power connector pins Pd come into contact with each other. The coil terminal Tc and the power connector pin Pd penetrating through the through holes of the power line Ld and the neutral line Ln are electrically connected to the power line Ld and the neutral line Ln by, for example, soldering.

  Specifically, as shown in FIG. 3, the first power lines 31U, 31V, and 31W are connected to the first power positive terminals 11Up, 11Vp, and 11Wp of the first system by the connection as described above. The connector pins 21Un, 21Vn, 21Wn are electrically connected. The first neutral wire 31N electrically connects the first coil negative terminals 11Um, 11Vm, 11Wm of the first system. The second power lines 32U to 32W and the second neutral line 32N constitute a second system connection, similarly to the first power lines 31U to 31W and the first neutral line 31N.

(Resolver 40)
The resolver 40 is an angle detector that detects the rotation angle of the electric motor 10. In the present embodiment, the resolver 40 has a plurality of systems that can detect the rotation angle of the electric motor 10 independently of each other. Specifically, as shown in FIG. 5, the resolver 40 is formed by winding the first system resolver coils 41 </ b> S, 41 </ b> C, 41 </ b> E and the second system resolver coils 42 </ b> S, 42 </ b> C, 42 </ b> E around the same resolver stator 43 teeth. It consists of two lines configured.

  The first system resolver coils 41S, 41C, 41E have first sensor positive terminals 41Sp, 41Cp, 41Ep and first sensor negative terminals 41Sm, 41Cm, 41Em. The second system resolver coils 42S, 42C, 42E have second sensor positive terminals 42Sp, 42Cp, 42Ep and second sensor negative terminals 42Sm, 42Cm, 42Em. The total of 12 sensor terminals 41Sp to 41Ep, 41Sm to 41Em, 42Sp to 42Ep, 42Sm to 42Em (hereinafter also simply referred to as “sensor terminal Ts”) are respectively in a predetermined phase and radial position at the rotational axis Ar direction. It is formed by stretching.

  A resolver rotor 44 fixed to the outer peripheral surface of the motor shaft 5 is disposed on the inner peripheral side of the resolver stator 43. The resolver rotor 44 rotates integrally with the motor rotor 14 of the electric motor 10 as the electric motor 10 rotates. The resolver stator 43 of the resolver 40 is fixed to the inner peripheral surface of the resolver housing 46. The resolver housing 46 is partly fitted to the outer peripheral surface of the power connector 20 and positioned, and is fixed to the bracket 70 by bolt fastening with a gasket interposed between the resolver housing 46 and the power line substrate 30.

  The resolver housing 46 constitutes a part of a signal connector 50 described later in the present embodiment. Specifically, when the resolver housing 46 is fixed to the bracket 70, the connector housing 46 a is integrally formed at a position shifted by 90 degrees around the rotation axis Ar with respect to the power connector 20. The connector housing 46 a holds the connector main body 55 of the signal connector 50 and constitutes a joint portion of the signal connector 50.

(Signal connector 50)
The signal connector 50 is a connector used for connection to an external device so that power used for angle detection can be supplied from the external device to the resolver 40 and a detection signal can be output. The signal connector 50 has a quantity (12) of signal connector pins Ps corresponding to a total of 12 sensor terminals Ts of the first system and the second system.

  Specifically, the signal connector pins Ps include a total of two first signal connector pins 51S respectively corresponding to the first sensor positive terminal 41Sp and the first sensor negative terminal 41Sm of the first system. Similarly, the signal connector pins Ps include a total of two first signal connector pins 51C and first signal connector pins 51E.

  The signal connector pins Ps include a total of two second signal connector pins 52S respectively corresponding to the second sensor positive terminal 42Sp and the second sensor negative terminal 42Sm of the second system. Similarly, the signal connector pins Ps include a total of two second signal connector pins 52C and second signal connector pins 52E.

  As shown in FIG. 2, the signal connector pins Ps are each formed in an L shape, and one end side is fixed to the connector main body 55. The connector main body 55 of the signal connector 50 is held on the inner peripheral side of the connector housing 46 a formed in the resolver housing 46. The other end sides of the signal connector pins Ps are formed to extend in the direction of the rotation axis Ar at different positions.

(Signal line substrate 60)
The signal line substrate 60 is a plate member made of an insulating material. In the present embodiment, the signal line substrate 60 is formed in an annular shape as a whole as shown in FIG. As shown in FIG. 2, the signal line substrate 60 is arranged side by side in the rotation axis Ar direction with respect to the resolver 40.

  On the signal line substrate 60, first signal lines 61S, 61C, 61E and second signal lines 62S, 62C, 62E are wired. The first signal lines 61S to 61E and the second signal lines 62S to 62E (hereinafter also simply referred to as “signal lines Ls”) are not short-circuited to the surfaces on both sides of the signal line substrate 60 as shown in FIG. Arranged appropriately.

  A signal connector 50 is integrally provided on the surface of the signal line substrate 60. In this embodiment, the signal connector 50 is fixed to a predetermined position of the signal line substrate 60 by arranging the signal line substrate 60 in the resolver housing 46. At both ends of the signal line Ls, through-holes that are continuous with holes provided at predetermined positions of the signal line substrate 60 are provided.

  Here, as described above, the signal connector 50 is provided at a predetermined position on the signal line substrate 60, so that the signal lines Ls respectively corresponding to the signal connector pins Ps are in contact with each other. The sensor terminal Ts and the signal connector pin Ps penetrating the through hole of the signal line Ls are electrically connected to the signal line Ls by, for example, soldering.

  In detail, as shown in FIG. 5, the first signal lines 61S, 61C, 61E are connected to the three first sensor positive terminals 41Sp, 41Cp, 41Ep of the first system and the first sensor negative by the connection as described above. The first signal connector pins 51Sn, 51Cn, 51En corresponding to the terminals 41Sm, 41Cm, 41Em are electrically connected. Similarly to the first signal lines 61S to 61E, the second signal lines 62S to 62E constitute a second system connection.

(Bracket 70)
The bracket 70 is disposed in the opening of the motor housing 16 and partitions the electric motor 10 and the resolver 40 in the direction of the rotation axis Ar. The bracket 70 rotatably supports the motor shaft 5 via a bearing at the center portion. As shown in FIG. 2, the power line substrate 30 is fixed to the bracket 70 with a spacer interposed on the surface opposite to the electric motor 10.

  As shown in FIGS. 2 and 4, the bracket 70 is integrally formed with a cylindrical portion 71 having a cylindrical shape centered on the rotation axis Ar. The cylindrical portion 71 is located on the inner peripheral side of the annular power line substrate 30 and is formed by extending in the direction of the rotation axis Ar. A resolver 40 is disposed on the inner peripheral side of the cylindrical portion 71. Thus, the cylindrical portion 71 partitions the power line substrate 30 and the resolver 40 in the radial direction.

  Here, the cylindrical portion 71 is set to a material and thickness that can attenuate electromagnetic waves by reflection or absorption. With such a configuration, the cylindrical portion 71 functions as an electromagnetic shield member that shields electromagnetic waves generated when current flows through the power line Ld of the power line substrate 30. That is, the cylindrical portion 71 reduces noise generated in the detection signal of the resolver 40 by the electromagnetic wave.

(Operation of motor device 1 and positional relationship of components)
In the motor device 1 having the above-described configuration, driving electric power is independently supplied to the electric motor 10 having two systems from an external device, and the rotational driving is controlled. At this time, the two resolvers 40 independently detect the rotation angle of the electric motor 10 and output the detection results as signals to the external devices.

  The power line board 30 and the signal line board 60 in the motor device 1 do not have, for example, a control circuit for controlling the operation of the electric motor 10 or the resolver 40 or a power supply circuit for generating supply power. That is, the power line substrate 30 is a wiring substrate having a function of electrically connecting the electric motor 10 and the power connector 20. Similarly, the signal line substrate 60 is a wiring substrate having a function of electrically connecting the resolver 40 and the signal connector 50.

  Here, as shown in FIG. 2, the power line substrate 30 and the signal line substrate 60 are arranged side by side with their respective surfaces facing the direction of the rotation axis Ar of the electric motor 10. Further, the power line board 30 and the signal line board 60 are arranged so that the signal line board 60 is within the range Rd in the direction of the rotation axis Ar where the power connector 20 is located. The power line substrate 30 is disposed at substantially the same position in the direction of the rotation axis Ar as the end face of the signal connector 50 on the electric motor 10 side.

  Further, in the present embodiment, the power line board 30 and the signal line board 60 are for signals provided integrally with the signal line board 60 with respect to the power connector 20 provided integrally with the power line board 30. The connector 50 is disposed at the same position in the direction of the rotation axis Ar. In other words, the power line board 30 and the signal line board 60 are in a phase different from each other as shown in FIG. 1, the range Rd in the direction of the rotation axis Ar where the power connector 20 is located and the rotation axis Ar where the signal connector 50 is located. The direction ranges Rs are arranged so as to overlap each other.

(Effects of the configuration of the embodiment)
The motor device 1 includes an electric motor 10 having a plurality of coil terminals Tc, a power connector 20 having a number of power connector pins Pd corresponding to the plurality of coil terminals Tc, and a power connector pin corresponding to the coil terminals Tc. A power line Ld that electrically connects Pd is provided, a power line board 30 having a power connector 20 integrally provided on the surface, and a plurality of sensor terminals Ts. An angle detector (resolver 40) to detect, a signal connector 50 having a number of signal connector pins Ps corresponding to a plurality of sensor terminals Ts, and a signal connector pin Ps corresponding to the sensor terminals Ts are electrically connected. And a signal line substrate 60 on which a signal connector 50 is integrally provided.
The power line board 30 and the signal line board 60 are arranged side by side with their respective surfaces facing the rotation axis direction of the electric motor 10, and the signal line board 60 is within the range Rd in the rotation axis direction where the power connector 20 is located. Is arranged to fit.

  According to such a configuration, the motor device 1 is of a type whose operation is controlled by an external device, and wiring in the device is made by the power line board 30 and the signal line board 60. Thereby, compared with the wiring using a bus bar, the number of parts required for wiring can be reduced, and the work load in the assembly process can be reduced. Further, the power line substrate 30 and the signal line substrate 60 are arranged side by side in the rotation axis direction so as to be within the thickness of the power connector 20. Thereby, the dimension of the rotating shaft direction in the motor apparatus 1 can be made small, and the motor apparatus 1 can be reduced in size.

The power line substrate 30 is formed in an annular shape and is disposed on the outer peripheral side of the angle detector (resolver 40).
According to such a configuration, the angle detector (resolver 40) is disposed through the annular power line substrate 30. Thereby, compared with the structure which arrange | positions the power line board | substrate 30 along with a rotating shaft direction with respect to an angle detector (resolver 40), the dimension of the rotating shaft direction in the motor apparatus 1 can be made still smaller. Therefore, the motor device 1 can be reduced in size.

The motor device 1 further includes an electromagnetic shield member (cylindrical portion 71) that is disposed between the power line substrate 30 and the angle detector (resolver 40) and has a cylindrical shape.
The energization of the power line substrate 30 to the power line Ld may affect the detection accuracy of the angle detector (resolver 40) by forming an electromagnetic field around the power line Ld along with the energization. Therefore, by arranging an electromagnetic shielding member (cylindrical portion 71) having a cylindrical shape between the angle detector (resolver 40) and the power line substrate 30 in a positional relationship between the inner side and the outer side in the radial direction, The influence can be cut off. Thereby, the fall of the detection accuracy of an angle detector (resolver 40) can be prevented.

In addition, the electric motor 10 has a plurality of systems capable of rotating the motor rotor independently of each other.
The motor apparatus 1 may employ an electric motor 10 having a plurality of systems, for example, by redundancy design for the purpose of improving reliability. However, since the electric motor 10 consisting of two systems as in the present embodiment has twice the wiring of the power line Ld as compared to the case of one system, the wiring in the apparatus becomes complicated. On the other hand, by wiring the power line Ld corresponding to the coil terminal Tc of each motor stator on the power line substrate 30, the configuration of the wiring can be simplified, the work load of the assembly process can be reduced, and erroneous assembly can be performed. Can be prevented.

Further, the angle detector (resolver 40) has a plurality of systems capable of detecting the rotation angle of the electric motor 10 independently of each other.
The motor apparatus 1 may employ an angle detector (resolver 40) having a plurality of systems, for example, by a redundancy design for the purpose of improving reliability. However, since the angle detector (resolver 40) consisting of two systems as in the present embodiment has twice the wiring of the signal line Ls as compared with the case of one system, the wiring in the apparatus becomes complicated. On the other hand, by wiring the signal line Ls corresponding to the sensor terminal Ts of each sensor to the signal line substrate 60, the configuration of the wiring can be simplified, the work load of the assembly process can be reduced, and erroneous assembly is prevented. can do.

The angle detector is a resolver 40.
According to such a configuration, the environment resistance as the motor device 1 can be improved by applying the resolver 40 having excellent environment resistance as an angle detector. On the other hand, the resolver 40 requires three signal lines Ls, and there is a concern that the signal lines Ls increase and the wiring in the apparatus becomes complicated as compared with other types of angle detectors. On the other hand, by wiring the signal line Ls corresponding to the sensor terminal Ts of each sensor to the signal line substrate 60, the configuration of the wiring can be simplified, the work load of the assembly process can be reduced, and erroneous assembly is prevented. can do.

The power line board 30 and the signal line board 60 are arranged so that the signal connector 50 is located at the same position in the rotation axis direction with respect to the power connector 20.
According to such a configuration, the power connector 20 and the signal connector 50 are arranged at the same position in the rotation direction and in different phases. Thereby, the dimension of the rotating shaft direction in the motor apparatus 1 can be made small, and the motor apparatus 1 can be reduced in size.

Further, the power connector 20 is provided at a predetermined position on the power line substrate 30 so that the power line Ld corresponding to the power connector pin Pd comes into contact. The signal connector 50 is provided at a predetermined position on the signal line substrate 60 so that the signal line Ls corresponding to the signal connector pin Ps comes into contact.
According to such a configuration, by arranging the connectors 20 and 50 corresponding to the predetermined positions on the substrates 30 and 60, the power lines Ld or the signal lines Ls corresponding to the connector pins Pd and Ps come into contact. Thus, the connector pins Pd and Ps and the power line Ld or the signal line Ls are connected with the arrangement of the connectors 20 and 50. Therefore, compared with the structure which connects the connector pin Pd for power and the power line Ld, for example using a harness, while being able to reduce a number of parts, it can prevent wrong connection.

<Modification of Embodiment>
In the embodiment, the power line substrate 30 and the signal line substrate 60 are disposed at different positions in the direction of the rotation axis Ar. On the other hand, the power line board 30 and the signal line board 60 have various positional relationships as long as the signal line board 60 is arranged so as to be within the range Rd in the direction of the rotation axis Ar where the power connector 20 is located. Can be adopted.

  For example, the signal line board 60 may be arranged in the direction of the rotation axis Ar closer to the electric motor 10 than the power line board 30 and the resolver 40, or at the same position as the power line board 30 in the rotation axis direction. It is good also as a structure arranged. Further, the signal line substrate 60 may be formed integrally with the power line substrate 30. However, the aspect illustrated in the embodiment is preferable from the viewpoint of shielding electromagnetic waves generated in the power line substrate 30 and reducing noise.

  In the embodiment, the electric motor 10 and the angle detector (resolver 40) are both composed of two systems. On the other hand, the motor apparatus 1 may employ one or three or more electric motors 10 and angle detectors. In particular, when the electric motor 10 and the angle detector having a plurality of systems are employed, by using the power line board 30 and the signal line board 60 which are wiring boards, assembly including wiring is facilitated, and the rotation axis Ar The direction dimension can be reduced. Further, the power line substrate 30 and the signal line substrate 60 may be configured by a plurality of substrates, for example, depending on the number of systems.

  In the embodiment, the resolver 40 and the signal line substrate 60 are partitioned from the electric motor 10 and the power line substrate 30 by a bracket 70 formed of a material that can attenuate electromagnetic waves by reflection or absorption, and noise can be reduced. ing. As the electromagnetic shield member, in addition to the bracket 70, for example, a plate-shaped electromagnetic shield member may be disposed with a gasket between the power line substrate 30 and the signal line substrate 60. Or you may employ | adopt the structure which uses the gasket which functions as an electromagnetic shielding member.

  In the embodiment, the resolver 40 is employed as the angle detector. In addition, the motor device 1 may be configured to use a potentiometer or a rotary encoder as the angle detector. However, from the viewpoint of environmental resistance, as exemplified in the embodiment, a mode in which the resolver 40 is employed as the angle detector is preferable.

  DESCRIPTION OF SYMBOLS 1: Motor apparatus 10: Electric motor 13: Motor stator 14: Motor rotor 20: Power connector 30: Power line board 40: Resolver (angle detector) 43: Resolver stator 44: Resolver rotor 50: Signal connector, 60: Signal line board, 70: Bracket, 71: Cylindrical part (electromagnetic shield member), Ar: Rotating shaft, Rd: Range (in the direction of the rotating shaft where the power connector is located), Tc: Coil Terminals Tc, Pd: Power connector pins, Ld: Power lines, Ln: Neutral wires, Ts: Sensor terminals, Ps: Signal connector pins, Ls: Signal wires

Claims (8)

An electric motor having a plurality of coil terminals;
A power connector having a number of power connector pins corresponding to a plurality of the coil terminals;
A power line that electrically connects the coil terminal and the corresponding power connector pin, and a power line board that is integrally provided with the power connector on the surface;
An angle detector that has a plurality of sensor terminals and detects a rotation angle of the electric motor;
A signal connector having a number of signal connector pins corresponding to a plurality of sensor terminals;
A signal line that electrically connects the sensor terminal and the corresponding signal connector pin is provided, and a signal line board on which the signal connector is integrally provided, and
The power line board and the signal line board are arranged side by side with the surfaces facing the rotation axis direction of the electric motor, and the signal line is within the range of the rotation axis direction where the power connector is located. A motor device arranged so that a substrate can be accommodated.   The motor device according to claim 1, wherein the power line substrate is formed in an annular shape and disposed on an outer peripheral side of the angle detector.   The motor device according to claim 2, further comprising an electromagnetic shield member that is disposed between the power line substrate and the angle detector and has a cylindrical shape.   The said electric motor is a motor apparatus as described in any one of Claims 1-3 which has several systems which can rotationally drive a motor rotor mutually independently.   The motor device according to any one of claims 1 to 4, wherein the angle detector includes a plurality of systems capable of independently detecting a rotation angle of the electric motor.   The motor device according to claim 1, wherein the angle detector is a resolver.   The said power line board | substrate and the said signal line board | substrate are arrange | positioned so that the said signal connector may become the same position in the said rotating shaft direction with respect to the said power connector. Motor device. The power connector contacts the power line corresponding to the power connector pin by being provided at a predetermined position on the power line board,
The motor device according to claim 1, wherein the signal connector is provided at a predetermined position on the signal line substrate, so that the signal line corresponding to the signal connector pin contacts.

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