Actuator device and device for controlling opening/closing body of vehicle

Patent metadata

Field	Value
Publication number	US-10141819-B2
Application number	US-201414896579-A
Country	US
Kind code	B2
Filing date	May 28, 2014
Priority date	Jul 10, 2013
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

An actuator apparatus includes a motor, an electromagnetic clutch, and an accommodation member accommodating the electromagnetic clutch, the electromagnetic clutch including an armature supported by a drive member rotated by motor drive and being adapted to rotate integrally with the drive member, a rotor being rotatable relative to the armature and being adapted to rotate integral with an output member, an electromagnet being capable of connecting the armature and the rotor to each other in accordance with an electromagnetic attractive force generated by electrification in such a manner that torque of the motor is transmittable, the actuator apparatus including a conductive member integrally provided at the accommodation member and being connected to a conductive portion of the electromagnetic clutch in such a manner that the conductive member forms a ground circuit that can connect the conductive portion with ground.

First claim

The invention claimed is:

1. An actuator apparatus comprising:
a motor functioning as a drive source;
an electromagnetic clutch being capable of selectively connecting and disconnecting a torque transmission path of the motor; and
an accommodation member accommodating the electromagnetic clutch, the electromagnetic clutch including:
an armature supported by a drive member rotated by motor drive, the armature being adapted to rotate integrally with the drive member and to be movable in an axial direction;
a rotor arranged coaxially with the armature to be rotatable relative to the armature, the rotor being adapted to rotate integral with an output member; and
an electromagnet causing the armature and the rotor to be in pressure contact with each other in accordance with an electromagnetic attractive force generated by electrification and being capable of connecting the armature and the rotor to each other in such a manner that torque of the motor is transmittable, and the actuator apparatus comprising:
a conductive member integrally provided at the accommodation member and being connected to a conductive portion of the electromagnetic clutch in such a manner that the conductive member forms a ground circuit that can connect the conductive portion with ground.

2. The actuator apparatus according to claim 1 , further comprising:
a circuit board including a grounding conductive portion and accommodated in the accommodation member, the circuit board being fixed to the accommodation member in such a manner that the grounding conducting portion is connected to the conductive member.

3. The actuator apparatus according to claim 2 , wherein
the accommodation member includes a first accommodation member at which the conductive member is integrally provided and a second accommodation member fixed to the first accommodation member by being fastened with the use of a screw member,
the circuit board includes an insertion hole through which the screw member is inserted, the circuit board is fastened together with the first and second accommodation members, and
the grounding conductive portion is provided at a peripheral edge of the insertion hole.

4. The actuator apparatus according to claim 3 , wherein the conductive member includes an insertion hole through which the screw member is inserted.

5. The actuator apparatus according to claim 1 , wherein the conductive member is buried in and provided at the accommodation member by insert molding in a state where the conductive member includes an exposed portion.

6. The actuator apparatus according to claim 5 , wherein the conductive member is provided with an expanded shape portion including a flat surface at a top portion thereof, and the flat surface corresponds to the exposed portion.

7. The actuator apparatus according to claim 1 , further comprising:
a rotation detector provided at a position facing the rotor.

8. The actuator apparatus according to claim 1 , further comprising:
a housing to which the motor is fixed; and
a case including a circuit board accommodation portion, wherein
a wall portion of the circuit board accommodation portion includes a through hole into which a power supply connector of the motor is inserted by assembling the housing and the case, and
the power supply connector includes a flange facing the wall portion at a peripheral edge of the through hole.

9. The actuator apparatus according to claim 8 , further comprising:
a seal member provided at the flange to be capable of sealing a clearance between the through hole and the power supply connector inserted in the through hole.

10. A control apparatus for an opening and closing body for a vehicle comprising:
an actuator apparatus including:
a motor functioning as a drive source;
an electromagnetic clutch being capable of selectively connecting and disconnecting a torque transmission path of the motor; and
an accommodation member accommodating the electromagnetic clutch, the electromagnetic clutch including:
an armature supported by a drive member rotated by motor drive, the armature being adapted to rotate integrally with the drive member and to be movable in an axial direction;
a rotor arranged coaxially with the armature to be rotatable relative to the armature, the rotor being adapted to rotate integral with an output member; and
an electromagnet causing the armature and the rotor to be in pressure contact with each other in accordance with an electromagnetic attractive force generated by electrification and being capable of connecting the armature and the rotor to each other in such a manner that torque of the motor is transmittable, and the actuator apparatus including:
a conductive member integrally provided at the accommodation member and being connected to a conductive portion of the electromagnetic clutch in such a manner that the conductive member forms a ground circuit that can connect the conductive portion with ground.

Assignees

• Aisin Seiki

Inventors

• Matsumoto Keisuke
• Sumiya Seiichi
• Negishi Tomohiro
• Fukumoto Ryoichi
• Umemura Eisuke

Classifications

• H02K11/21

  Devices for sensing speed or position, or actuated thereby (specially adapted for machines having non-mechanical commutating devices H02K29/06, H02K29/14) · CPC title

• F16D27/14

  Details · CPC title

• H02K7/1085

  Magnetically influenced friction clutches · CPC title

• H02K5/10

  with arrangements for protection from ingress, e.g. water or fingers · CPC title

• H02K5/225

  Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title