Small-sized motor
AssigneeSanyo Denki Co., Ltd.
InventorsDaigo Kuraishi, Akira Shimizu
Life of this patent
Estimating the term…
Abstract
A connection circuit board includes a main portion and a lead wire connecting portion. The main portion is positioned between an end portion of a motor case body and an end bracket. The lead wire connecting portion projects outwardly from the motor case body. A protective cap including a connecting portion receiving chamber for receiving the lead wire connecting portion of the connection circuit board is attached to the lead wire connecting portion through an engaging structure. An adhesive is filled in the connecting portion receiving chamber of the protective cap. In a small-sized motor of the above configuration, the protective cap can securely be fixed to the motor case.
Claims5
A small-sized motor comprising:
- a cylindrical motor case body;
- a stator having a plurality of winding portions, which is provided inside the motor case body;
- a rotor provided inside the stator;
- a pair of end brackets which are fixed to both end portions of the motor case body and rotatably support a rotary shaft to which the rotor is fixed;
- and
- a connection circuit board having a main portion and a lead wire connecting portion, the main portion being positioned between one of the end portions of the motor case body and one of the pair of end brackets, and the lead wire connecting portion projecting outwardly from the motor case body,
- wherein a plurality of wire-end portions extending from the plurality of winding portions are electrically connected to a circuit pattern on the connection circuit board, and a plurality of lead wires are electrically connected to a plurality of connection electrodes connected to the circuit pattern provided on the lead wire connecting portion;
- the small-sized motor further comprises a protective cap, said protective cap cooperating with at least one of the motor case body and one of the pair of end brackets to define a connecting portion receiving chamber in which is received the lead wire connecting portion of the connection circuit board;
- the protective cap is attached to the lead wire connecting portion through an engaging structure;
- and
- the protective cap is fixed to the motor case body and/or said one of the pair of end brackets using an adhesive, said adhesive being received within the connecting portion receiving chamber.
Dependencies are inferred from the claim text.