Rotor pressing plate for permanent magnet synchronous motor and permanent magnet synchronous motor
A technology for permanent magnet synchronous motors and rotors, applied to synchronous machine parts, magnetic circuit rotating parts, magnetic circuits, etc., can solve the problems of single function of the rotor pressing plate and unused rotor core space, etc., and achieve high current utilization rate , Optimize the effect of magnetic permeability
Inactive Publication Date: 2020-12-04
GREE ELECTRIC APPLIANCES INC
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0003] The technical problem to be solved by the embodiment of the present invention is: the function of the rotor pressure plate is single, and the upper and lower ends of the stator winding of the motor are far from the rotor core and there is still a large unused space
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[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0028] It should be noted that the terms "comprising" and "having" in the specification and claims of the present application and the above-mentioned drawings and any variations thereof are intended to cover a non-exclusive inclusion, for example, a system comprising a series of units , products or equipment are not necessarily limited to those element...
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The invention relates to the technical field of motor devices, in particular to a rotor pressing plate for a permanent magnet synchronous motor, and further relates to the permanent magnet synchronousmotor comprising the rotor pressing plate. The rotor pressing plate comprises a plate body and a shaft hole formed in the middle of the plate body, the rotor pressing plate is made of magnetic materials, a plurality of magnetic barriers are evenly distributed on the plate body around the center of the plate body, and the magnetic barriers correspond to rotor magnetic poles of the permanent magnetsynchronous motor in a one-to-one mode. The permanent magnet synchronous motor comprises a stator and a rotor, wherein the rotor comprises two rotor pressing plates and a rotor iron core clamped between the two rotor pressing plates. After the rotor pressing plate is applied to the permanent magnet synchronous motor, on one hand, the rotor pressing plate can play an original fixing and locking role, and on the other hand, by changing the material of the rotor pressing plate, the rotor pressing plate has more optimized magnetic conductivity, a large magnetic field existing due to the fact thatthe end of a distributed winding is too high can be fully utilized, and the current utilization rate of the whole machine is higher.
Description
technical field [0001] The present application relates to the technical field of motor devices, in particular, to a rotor pressing plate for a permanent magnet synchronous motor, and to a permanent magnet synchronous motor including the rotor pressing plate. Background technique [0002] The permanent magnet synchronous motor is a synchronous motor that is excited by a permanent magnet to generate a synchronous rotating magnetic field. The permanent magnet acts as a rotor to generate an exciting magnetic field, and the three-phase stator winding generates a rotating magnetic field to drive the rotor to rotate and output torque. Due to the advantages of simple structure, high efficiency and high power density, it is widely used in various occasions. The existing motor adopts the common rotor pressing plate structure, which only achieves a single fixing function in function, and there is still a large space between the upper and lower ends of the stator winding of the motor an...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K1/27H02K1/28H02K11/01H02K21/02
CPCH02K1/27H02K1/276H02K1/28H02K21/02H02K11/01
Inventor 唐志伟谭福慧高尤坤杨晓琴张静
Owner GREE ELECTRIC APPLIANCES INC