Stator assembly, permanent magnet synchronous motor, piston compressor and refrigerator
A permanent magnet synchronous motor and piston technology, which is applied in the fields of piston compressors, refrigerators, permanent magnet synchronous motors, and stator components, can solve problems such as the reduction of motor efficiency, reduce iron loss, improve stability, and reduce punching. Effects of the use of materials
Pending Publication Date: 2022-06-07
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0005] Therefore, the present application provides a stator assembly, a permanent magnet synchronous motor, a piston compressor and a refrigerator, which can solve the problem that the motor structure parameters in the prior art do not change, and the output torque of the motor is changed by adjusting the input current, so as to adapt to the displacement of the compressor. The required power after the amount is reduced will reduce the efficiency of the motor
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[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0037] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embo...
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The invention provides a stator assembly, a permanent magnet synchronous motor, a piston compressor and a refrigerator. The stator assembly comprises a stator iron core, the stator iron core comprises a plurality of iron core blocks, and the iron core blocks are evenly distributed in the circumferential direction of the stator iron core to form an annular structure of the stator iron core; a gap is formed between every two adjacent iron core blocks in the circumferential direction, and the size of each gap is adjustable. The stator core is formed by splicing modular structures, and fixed application and batch production and processing of the motor can be realized. For different application occasions, on the premise that the overall appearance of the motor is not limited, the stability of the motor is improved, meanwhile, the use of punching sheet materials is reduced, the punching sheet utilization rate is improved, and the cost is reduced. Meanwhile, gaps are arranged between the modular structures, iron loss of the motor can be reduced, the efficiency of the motor is improved, and the green and energy-saving production target is met.
Description
technical field [0001] The application belongs to the technical field of refrigerators, and in particular relates to a stator assembly, a permanent magnet synchronous motor, a piston compressor and a refrigerator. Background technique [0002] At present, the range of displacement of piston compressors used in refrigerators is mostly ranging from 5.0cc to 11.0cc, and different displacements of piston compressors are selected according to the needs of the application. When the application situation changes and the displacement of the piston compressor changes accordingly, the output torque of the motor inside the compressor will also change accordingly. [0003] However, if the structural parameters of the motor are kept unchanged, the output torque of the motor is changed by adjusting the input current to adapt to the required power after the compressor displacement is reduced, which will reduce the efficiency of the motor; it is also possible to redesign the motor scheme to...
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IPC IPC(8): H02K1/14H02K1/16H02K21/02
CPCH02K1/146H02K1/148H02K1/165H02K21/02H02K2213/03
Inventor 韩林达魏会军吴广荣郑泽锋柯三女
Owner GREE ELECTRIC APPLIANCES INC