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US 6,787,953 B2Granted
Motor having circuit board
AssigneeAsmo Co., Ltd.
InventorKatsuhiko Torii
Life of this patent
Estimating the term…
Abstract
A motor main body includes a brush holder, which supports a plurality of power supply brushes and includes a motor-side connector to be connected with an external connector. A circuit board is installed to the brush holder in a direction perpendicular to an axial direction of a rotatable shaft to electrically connect between the motor-side connector and the power supply brushes. The circuit board is received in the circuit board receiving portion when the motor main body and a speed reducing unit are assembled together to form an electric motor.
Claims9
An electric motor comprising:
- a motor main body that includes a rotatable shaft, which is rotated upon energization of the motor main body;
- a speed reducing unit that is connected to the motor main body and includes:
- a speed reducing mechanism that reduces rotational speed of the rotatable shaft;
- and
- a gear housing that receives the speed reducing mechanism;
- and
- a circuit board that is held in the gear housing and has a circuit, which controls rotation of the rotatable shaft of the motor main body, wherein:
- the gear housing includes a circuit board receiving portion, which opens toward the motor main body and receives the circuit board;
- the motor main body further includes a brush holder, which supports a plurality of power supply brushes and includes a motor-side connector to be connected with an external connector, wherein the motor-side connector is integrated into the brush holder;
- the circuit board is installed to the brush holder in a direction perpendicular to an axial direction of the rotatable shaft to electrically connect between the motor-side connector and the power supply brushes;
- and
- the circuit board is received in the circuit board receiving portion when the motor main body and the speed reducing unit are assembled together.
9 more elements
An electric motor comprising:
- a motor main body that includes a rotatable shaft, which is rotated upon energization of the motor main body;
- a speed reducing unit that is connected to the motor main body and includes:
- a speed reducing mechanism that reduces rotational speed of the rotatable shaft;
- and
- a gear housing that receives the speed reducing mechanism;
- and
- a circuit board that is held in the gear housing and has a circuit, which controls rotation of the rotatable shaft of the motor main body, wherein:
- the gear housing includes a circuit board receiving portion, which opens toward the motor main body and receives the circuit board;
- the motor main body further includes a brush holder, which supports a plurality of power supply brushes and includes a connector case, wherein the connector case is integrated into the brush holder;
- the circuit board includes a connector main body, which cooperates with the connector case of the brush holder to form a motor-side connector to be connected with an external connector;
- the circuit board is installed to the brush holder in a direction perpendicular to an axial direction of the rotatable shaft to electrically connect between the motor-side connector and the power supply brushes;
- the connector main body is inserted into the connector case in the direction perpendicular to the axial direction of the rotatable shaft to form the motor-side connector;
- and
- the circuit board is received in the circuit board receiving portion when the motor main body and the speed reducing unit are assembled together.
11 more elements
Dependencies are inferred from the claim text.