Motor, pump, and method of manufacturing the motor
AssigneeMitsubishi Electric Corporation
InventorsHiroki Asou, Mamoru Kawakubo, Mineo Yamamoto, Hiroyuki Ishii, Tougo Yamazaki
Life of this patent
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Abstract
An electric motor in which the cost of parts and the cost of processing are reduced by installing a fan cover, a capacitor installation box, and a foot plate on a molded stator without addition of installation parts. In the electric motor (200), the stator (100) is molded using a thermosetting resin. The stator (11) atter the molding has a foot plate installation section (13) to which the foot plate (19) is installed, and prepared holes for screws for fixing the foot plate (19) are exposed on the foot plate installation section (13).
Claims25
1-14. (canceled)
A motor having a stator molded of a thermosetting resin,
- the molded stator comprising:
- a foot plate mounting portion where a foot plate is mounted,
- wherein the foot plate mounting portion includes prepared holes for screw fixing of the foot plate, the prepared holes being exposed from a mold surface.
A motor having a stator molded of a thermosetting resin,
- the molded stator comprising:
- a condenser assembly box mounting portion where a condenser assembly box that incorporates a condenser is mounted,
- wherein the condenser assembly box mounting portion includes a lead wire outlet portion and prepared holes for screw fixing of the condenser assembly box, being exposed from a mold surface.
A method of manufacturing a motor comprising:
- a) producing a stator, and in parallel, molding a foot plate assembly part, in a first step;
- b) molding the stator together with the foot plate assembly part by resin molding to form a molded stator, in a second step;
- c) drilling one of prepared holes for mounting a foot plate to reach a stator core, and in parallel, producing a rotor assembly and a bracket, in a third step;
- d) incorporating the rotor assembly, the bracket, and a spring washer into the molded stator, and in parallel, molding a cooling fan, in a fourth step;
- e) incorporating the cooling fan into a shaft, at a protruding portion from the molded stator, of the rotor assembly by means of a C ring, and in parallel, molding a fan cover and producing the foot plate, in a fifth step;
- f) fastening together and incorporating the foot plate and the fan cover into the molded stator, in a sixth step;
- g) fixing the fan cover temporarily to the molded stator, and in parallel, molding a condenser assembly box, and producing a ground wire, in a seventh step;
- h) fastening together and incorporating the condenser assembly box and the fan cover into the molded stator, and in parallel, incorporating the ground wire into the molded stator together with a screw for assembly of the foot plate, in an eighth step;
- and
- i) connecting a lead wire drawn out from a lead wire outlet portion formed on the molded stator and a condenser contained in the condenser assembly box, and thereby assembling the motor, in a ninth step.
Dependencies are inferred from the claim text.