Motor stator for compressor, motor and compressor having same
A motor and compressor technology, applied in the field of compressors, can solve problems such as the inability to guarantee the oil return of the compressor, affect the reliability of the compressor, and reduce the efficiency of the motor, achieve simple structure, reduce noise and vibration, and maintain uniformity. Effect
Active Publication Date: 2019-02-15
GUANGDONG MEIZHI COMPRESSOR +1
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Problems solved by technology
[0002] The motor stator is usually fixed in the shell of the hermetic compressor through shell shrink fitting or press-in process. During the shell shrink fit or press-fit process, compressive stress and tensile stress will be generated on the motor stator. The magnetic circuit causes hysteresis stretching, which in turn increases the reluctance, which is likely to cause the problem of increased iron loss, and eventually leads to a decrease in the efficiency of the motor
In addition, during the operation of the compressor, the compressed refrigerant usually brings out part of the lubricating oil, so that the oil return of the compressor cannot be guaranteed, which affects the reliability of the compressor
Method used
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Embodiment Construction
[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0040] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does ...
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The invention discloses a motor stator for a compressor, a motor equipped with the motor stator, and a compressor equipped with the motor, wherein the motor stator comprises the components of a body in which a plurality of stator troughs which are through in the axial direction of the body. A stator tooth is limited between two adjacent stator troughs. The cross sections of two side walls, which are oppositely arranged along the circumferential direction of the body, of each stator trough are linear. The imaginary extension lines of the cross sections of two side walls of each stator trough limit a sector area of which the central angle is theta. A stress relaxation hole which is in the sector area and adjacent with the outer contour of the body is limited between each stator trough and the outer contour of the body. According to the motor stator for the compressor provided by an embodiment of the invention, through arranging the stress relaxation hole between the stator trough and the outer contour of the body, iron loss increase can be restrained and motor efficiency is improved. Furthermore, integral noise and vibration of the compressor can be effectively reduced, and enough oil return amount of the compressor is ensured.
Description
technical field [0001] The invention relates to the technical field of compressors, in particular to a motor stator for a compressor and a motor and a compressor with the same. Background technique [0002] The motor stator is usually fixed in the shell of the hermetic compressor through shell shrink fitting or press-in process. During the shell shrink fit or press-fit process, compressive stress and tensile stress will be generated on the motor stator. The magnetic circuit causes hysteresis stretching, which in turn increases the reluctance, which is likely to cause the problem of increased iron loss, and ultimately leads to a decrease in the efficiency of the motor. In addition, during the operation of the compressor, the compressed refrigerant usually brings out part of the lubricating oil, so that the amount of oil returned by the compressor cannot be guaranteed, which affects the reliability of the compressor. Contents of the invention [0003] The present invention ...
Claims
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IPC IPC(8): H02K1/16H02K1/27
CPCH02K1/165H02K1/274
Inventor 坂柳智司盖蕊
Owner GUANGDONG MEIZHI COMPRESSOR