Power supply terminal-housing motor

Details Power supply terminal-housing motor Power supply terminal-housing motor

2001-01-24

2002-10-15

Mullins, Burton S. (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S239000, C310S249000

Reexamination Certificate

active

06465920

ABSTRACT:

CROSS REFERENCE TO RELATED APPLICATION
This application is based on and incorporates herein by reference Japanese Patent Applications No. 2000-33427 filed Feb. 10, 2000 and No. 2000-339108 filed Nov. 7, 2000.
BACKGROUND OF THE INVENTION
The present invention relates to a power supply terminal-housing motor.
JP 2000-209818A published on Jul. 28, 2000 proposes a power supply terminal-housing motor. In this motor, a leaf spring substrate (internal power-supply terminal) has a base portion, a female terminal extending upward from one end of the base portion, and a flat-plate portion to be connected to a leaf spring member extending from the other end of the base portion and having a brush. The base portion is inserted into a fixing convex portion of the holding portion composing a cover member and fixed to the upper surface of the holding portion.
However, because the base portion disposed at the lower end of the leaf spring substrate (internal power-supply terminal) is inserted into the fixing convex portion, there is a possibility that the leaf spring substrate may fall down in fixing the leaf spring substrate-mounted cover member to the motor. If the leaf spring substrate falls down in fixing the leaf spring substrate-mounted cover member to the motor, the leaf spring substrate damages internal parts of the motor such as a commutator.
Further, because the base portion for fixing the leaf spring substrate is provided between the female terminal and the flat-plate portion in the leaf spring substrate, a gap is generated between the female terminal and the flat-plate portion. Thus, the internal power-supply terminal causes the construction of the motor having the internal power-supply terminal to be larger in its diameter in particular than a motor whose output is equal to that of the motor having the internal power-supply terminal. The gap causes the motor diameter (construction) to be large. Thus, it is necessary to miniaturize the motor.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a power supply terminal-housing motor allowing an internal power-supply terminal to be mounted and held in the interior of a motor reliably and without the internal power-supply terminal falling down.
It is another object of the present invention to provide a compact power supply terminal-housing motor.
According to one aspect of the present invention, each of a pair of the internal power-supply terminals has a terminal portion to be connected to a power supply terminal inserted from an external terminal insertion hole to supply an electric power from outside. It also has a connection portion to be connected to a brush-holding plate. Each of a pair of the internal power-supply terminals is held by an internal terminal-holding pedestal.
According to another aspect of the present invention, a brush-holding plate and a connection portion of an internal power-supply terminal are held by an internal terminal-holding pedestal such that the brush-holding plates and the connection portion are disposed radially one above the other.


REFERENCES:
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patent: 6294850 (2001-09-01), Yui et al.
patent: 2000-209818 (2000-07-01), None

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