Rotor core components, motors, air conditioners

A rotor iron core and component technology, which is applied in the fields of rotor iron core components, air conditioners, and motors, can solve the problems of reducing the length of the magnetic steel, increasing the magnetic flux leakage, occupying the radial space of the magnetic steel groove, etc., so as to increase the radial length, Increase the flux linkage output and reduce the effect of flux leakage

Active Publication Date: 2022-04-01
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, there are many existing technical solutions related to the limit installation of magnets (also called magnets), and generally adopt the limit form of buckle, such as attached figure 1 , this structure can ensure that the magnetic steel is reliably connected to the rotor core, but the buckle structure occupies the radial space of the magnetic steel slot, reduces the length of the magnetic steel, and increases the magnetic flux leakage

Method used

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  • Rotor core components, motors, air conditioners
  • Rotor core components, motors, air conditioners
  • Rotor core components, motors, air conditioners

Examples

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Embodiment Construction

[0024] see in conjunction Figure 1 to Figure 5 As shown, according to an embodiment of the present invention, a rotor core assembly is provided, including a rotor core 1 and a plurality of magnetic steels 2, the rotor core 1 has a shaft hole 11 and is evenly spaced around the shaft hole 11 A plurality of magnetic steel grooves 12, the magnetic steel grooves 12 extend along the radial direction of the shaft hole 11 and penetrate the outer peripheral wall of the rotor core 1, and a plurality of the magnetic steel grooves 2 are installed in one-to-one correspondence In the plurality of magnetic steel slots 12 , there is a concave-convex limiting structure between the radial side walls of the magnetic steel slots 12 and the corresponding mating surfaces of the magnetic steel 2 . In this technical solution, the radial positioning of the magnetic steel 2 no longer adopts the buckle structure at the notch of the magnetic steel groove 12 in the prior art, but on the radial side of th...

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Abstract

The invention provides a rotor core assembly, a motor, and an air conditioner, wherein the rotor core assembly includes a rotor core and a plurality of magnetic steels, the rotor core has a shaft hole and a plurality of magnets arranged evenly around the shaft hole a magnetic steel groove, the magnetic steel groove extends along the radial direction of the shaft hole and penetrates the outer peripheral wall of the rotor core, and a plurality of the magnetic steels are respectively installed on the plurality of the magnetic steels in one-to-one correspondence In the groove, there is a concave-convex limiting structure between the radial side wall of the magnetic steel groove and the corresponding mating surface of the magnetic steel. According to the present invention, a concave-convex limiting structure is formed between the radial side elevation of the magnetic steel groove and the side elevation of the magnetic steel to form a clamping position without occupying the radial space of the magnetic steel groove, which is beneficial to increase the magnetic steel The radial length reduces the magnetic flux leakage at the radially outer end of the magnetic steel.

Description

technical field [0001] The invention belongs to the technical field of motor manufacturing, and in particular relates to a rotor core assembly, a motor and an air conditioner. Background technique [0002] In the prior art, a permanent magnet synchronous motor with a tangential (spoke) rotor structure has been widely used in various industries, and this type of motor has a high torque density and a small volume. Studies have shown that if a ferrite tangential structure motor without a magnetic isolation bridge is used, greater advantages can be exerted. However, the ferrite tangential rotor structure without magnetic isolation bridges faces the problems of structural stability and processing feasibility. Among them, there are many existing technical solutions related to the limit installation of magnets (also called magnets), and generally adopt the limit form of buckle, such as attached figure 1 , this structure can ensure that the magnetic steel is reliably connected to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/276H02K1/27H02K1/28H02K21/02
CPCH02K1/27H02K1/28H02K21/028
Inventor 高明世肖胜宇陈彬
Owner GREE ELECTRIC APPLIANCES INC
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