Silicon steel sheet for motor

Abstract

A silicon steel sheet for a motor contains: a peripheral extension, a plurality of main teeth, multiple auxiliary teeth, a plurality of first pole shoes, and multiple second pole shoes. Each main tooth is separated from each auxiliary tooth and is defined between any two auxiliary teeth, each first pole shoe is in connection with each main tooth, and each second pole shoe is coupled with each auxiliary tooth. Said each first pole shoe, said each second pole shoe, said each main tooth, and said each auxiliary tooth define an accommodation space configured to house at least one electrical wire. Preferably, at least one electrical wire is winded on said each main tooth and said each auxiliary tooth, respectively.

Claims

1. A silicon steel sheet for a motor comprising: a peripheral extension, a plurality of main teeth, multiple auxiliary teeth, a plurality of first pole shoes, and multiple second pole shoes; wherein each main tooth is separated from each auxiliary tooth and is defined between any two auxiliary teeth, each first pole shoe is in connection with each main tooth, and each second pole shoe is coupled with each auxiliary tooth; wherein said each first pole shoe, said each second pole shoe, said each main tooth, and said each auxiliary tooth define an accommodation space configured to house at least one electrical wire; and wherein at least one electrical wire is winded on said ach main tooth and said each auxiliary tooth, respectively.

2. The silicon steel sheet for the motor as claimed in claim 1, wherein a ratio of a first length of said each main tooth against a second length of said each auxiliary tooth is 10:7.

3. The silicon steel sheet for the motor as claimed in claim 2, wherein the first length of said each main tooth is 10 mm, and the second length of said each auxiliary tooth is 7 mm

4. The silicon steel sheet for the motor as claimed in claim 1, wherein said each first pole shoe has two first cutouts, and said each second pole shoe has two second cutouts.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG. 1 is a side plan view showing the assembly of a silicon steel sheet for a motor according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] With reference to FIG. 1, a silicon steel sheet 10 for a motor according to a preferred embodiment of the present invention is polygonal and has a thickness of 13 mm The silicon steel sheet 10 comprises: a peripheral extension 20, a plurality of main teeth 30, multiple auxiliary teeth 40, a plurality of first pole shoes 32, and multiple second pole shoes 42.

[0016] Each main tooth 30 is separated from each auxiliary tooth 40 and is defined between any two auxiliary teeth 40, each first pole shoe 32 is in connection with said each main tooth 30, and each second pole shoe 42 is coupled with said each auxiliary tooth 40. Said each first pole shoe 32, wherein said each second pole shoe 42, said each main tooth 30, and said each auxiliary tooth 40 define an accommodation space 50 configured to house at least one electrical wire (not shown). Between said each first pole shoe 32 and said each second pole shoe 42 is defined an opening 52 so that the at least one electrical wire is housed in the accommodation space 50 via the opening 52.

[0017] A first length 36 of said each main tooth 30 is 10 mm, and a second length 46 of said each auxiliary tooth 40 is 7 mm, so a ratio of the first length 36 against the second length 46 is 10:7, thus reducing a length of at least one electrical wire winded on said ach main tooth 30 and said each auxiliary tooth 40, respectively.

[0018] In addition, said each first pole shoe 32 has two first cutouts 34, said each second pole shoe 42 has two second cutouts 44, and a distance between each first cutout 34 and the opening 50 adjacent to said each first cutout 34 is fixed, a distance between each second cutout 44 and the opening 50 adjacent to said each second cutout 44 is fixed so as to decrease cogging torque, vibration and noise as the motor rotates.

[0019] While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention and other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.