US 8,410,649 B2Granted

Electric motor, electric motor unit, blower, and electric device

AssigneePanasonic Corporation

InventorsYuichi Tanabe, Toshifumi Tsutsumi, Shinsuke Kimura, Hirosi Mukaide

Life of this patent

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Abstract

A power supply connecting member is configured by a housing of the power supply connecting member molded with a terminal of the power supply connecting member by a resin. The terminal of the power supply connecting member has three bent portions, two bent portions are perpendicular to an axial direction before the terminal is bent, and the remaining bent portion is parallel to the axial direction before the terminal is bent. A distal end on a bending side of the terminal of the power supply connecting member is inserted into the power supply connecting member housing to configure the power supply connecting member. An output shaft support portion unit is configured such that a bearing to hold a rotor and an elastic member (spring for example) to hold the bearing are stored in a bottom cover (lower cover) having a recessed portion and a lid cover (upper cover) is press-fitted.

Claims28

Dependent claims

An electric motor in which a stator, a power supply connecting member, and a control unit component which controls a winding of the stator are attached to a circuit wiring board, and the circuit wiring board, the stator, the power supply connecting member, and the control unit component are molded by a molding material, comprising:

the stator including
a stator core having
a plurality of teeth arranged in a substantially radial pattern,
a yoke for connecting the teeth on a peripheral portion,
teeth end broad portions formed on ends of the teeth,
a slot open formed between the adjacent teeth end broad portions, and
a winding wound on the teeth through an insulator;
and
a rotor rotatably held facing an inner circumference of the stator through a small gap and having at least a permanent magnet magnetized to a plurality of poles,
wherein the power supply connecting member has a housing unit and a terminal having three bent portions, two bent portions of the bent portions extend in a direction perpendicular to a terminal axis direction of the terminal before being bent, a remaining bent portion extends in parallel to the terminal axis direction of terminal before being bent,
a through hole is formed in the circuit wiring board, a distal end of the terminal of the power supply connecting member is inserted into the through hole,
a terminal portion parallel to the circuit wiring board is soldered to arrange the power supply connecting member on a circuit wiring surface side of the circuit wiring board only one surface of which has circuit wiring.

9 more elements

An electric motor in which a stator, a connection-line-attached connector of a power supply connecting member, and a control unit component which controls a winding of the stator are attached to a circuit wiring board, and the circuit wiring board, the stator, the connection-line-attached connector of the power supply connecting member, and the control unit component are molded by a molding material, comprising:

the stator including:
a stator core having
a plurality of teeth arranged in a substantially radial pattern,
a yoke for connecting the teeth on a peripheral portion,
teeth end broad portions formed on ends of the teeth,
a slot open formed between the adjacent teeth end broad portions, and
a winding wound on the teeth through an insulator;
and
a rotor rotatably held facing an inner circumference of the stator through a small gap and having at least a permanent magnet magnetized to a plurality of poles,
wherein the connection-line-attached connector is configured such that a lead line is connected to a caulking terminal portion on one end side of a terminal of the connection-line-attached connector, and a connection portion between the caulking terminal portion and the lead line is integrally molded by resin,
the terminal has three step portions on the other end side, two step portions of the step portions extend in a direction perpendicular to a terminal direction of the caulking terminal portion, a remaining step portion extends in parallel to the terminal direction of the caulking terminal portion,
a distal end portion of the caulking terminal portion is inserted in a through hole formed in the circuit wiring board,
a terminal portion parallel to the circuit wiring board is soldered to arrange the connection-line-attached connector on a circuit wiring surface side of the circuit wiring board only one surface of which has circuit wiring.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/011,150Filed 21 Jan 2011
Priority: JP 2010-0451522 Mar 2010
Published: US 2011/0215658 A18 Sep 2011
Granted: 2 Apr 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H02K 5/225
Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes: terminal boxes or…
H01R 12/707
Locking or fixing a connector to a PCB: soldering or welding
H01R 12/7088
Coupling devices: arrangements for power supply
H02K 5/1672
Using sliding-contact or spherical cap bearings: radially supporting the rotary shaft at both ends of the rotor