The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2024
Filed:
Mar. 22, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Moriyuki Hazeyama, Tokyo, JP;
Shinsuke Kayano, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
The synchronous reluctance motor includes: an annular stator core having slots; and a cylindrical rotor core-having, for each magnetic pole, slits formed by arc-shaped openings which are convex toward a cylinder center and whose apexes are positioned on a q axis. The nth arc that is an inner edge of the opening close to the cylinder center has an arc center point on the q axis at a distance D(n) from-the rotor core. Where the radius of the nth arc with respect to the arc center point is denoted by R(n) and a ratio k(n) is defined as D(n)/R(n), the values of the ratios k() to k(n) are determined such that 0.20≤k(n)≤0.37 and k(n)< . . . <k(n)< . . . <k()<1 are satisfied and a slope a is in a range of (−0.92/n)≤a≤(−0.71/n).