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Motor structure, compressor and electric appliance

A motor structure, the same technology, applied in the field of compressors, can solve the problems of poor production implementation, increase the number of motor punching dies, increase the difficulty of the rotor lamination process, etc., to improve the perimeter of the mating surface and increase the interference force. Effect

Inactive Publication Date: 2019-04-19
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, this solution needs to open corresponding molds for the additional punching pieces, increasing the number of motor punching molds, and on the other hand, it also increases the difficulty of the rotor lamination process, and the production implementation is poor.

Method used

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  • Motor structure, compressor and electric appliance
  • Motor structure, compressor and electric appliance
  • Motor structure, compressor and electric appliance

Examples

Experimental program
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Effect test

Embodiment 2

[0041] see Figure 7 , Figure 7 It is the structure diagram of the motor structure embodiment 2 of the present invention. The motor structure of this embodiment is basically the same as the motor structure of Embodiment 1, the difference is that the rotor core 21 of the motor structure of this embodiment is provided with three installation holes 210, and the shape and size of the three installation holes 210 are the same. The three mounting holes 210 are uniformly arranged on the rotor core 21, and the three mounting holes 210 are located at the central point O of the rotor core 11. 2 Arrange evenly upwards on the same circumference as the center of the circle. The radial cross-sectional shape of the mounting hole 210 is a triangular shape, and the included angle between two straight sides of the triangular shape is 120°. The arc sides of the three mounting holes 210 are located at the center point O 2 on the same circle as the center.

[0042] In this embodiment, the st...

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PUM

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Abstract

The invention provides a motor structure, a compressor and an electric appliance. The motor structure comprises a rotor core and a crankshaft. The rotor core is provided with at least two mounting holes. The at least two mounting holes are arranged around the center point of the rotor core. At least two mounting posts are arranged on the end portion of the crankshaft in the axial direction. The mounting posts and the mounting holes correspond to each other one to one and have an interference fit. In the motor structure of the present invention, the rotor core and a rotating shaft are matched by a porous structure. Compared with a traditional single-hole structure, the porous structure greatly increase the circumference of a mating surface between the crankshaft and the rotor core, greatlyimproves interference force so as to provide sufficient holding force for the rotor, thereby contributing to designing a rotor core with a smaller length in the axial direction, miniaturization and lowering the overall cost of the motor structure.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a motor structure in the compressor, and a compressor and an electrical appliance with the motor structure. Background technique [0002] With the development of reciprocating compressor technology for refrigerators, refrigerator manufacturers hope to reduce the production cost of compressors by continuously reducing the amount of raw materials used in compressor components on the premise of ensuring compressor performance. [0003] For a reciprocating compressor used in a refrigerator, the amount of various raw materials used in each component of the compressor means the cost of the compressor. Since the production cost of the motor accounts for a large proportion of the total cost of the compressor in the compressor, reducing the cost of the motor can significantly reduce the cost of the compressor. For the motor stator and rotor assembly, the most effective way to reduce ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/28H02K7/00
CPCH02K1/28H02K7/003
Inventor 张凯陈华杰高明世
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION