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Method for fixing magnetic steel, rotor assembly and motor

A fixing method and magnetic steel technology, which is applied to the rotating parts of the magnetic circuit, the manufacture of stator/rotor bodies, electric components, etc., can solve the problems of weak bonding between the magnetic steel and the magnetic steel groove, and slow curing speed of the adhesive glue. , to achieve the effect of shortening the curing time, accelerating the curing speed and speeding up the fixing speed

Active Publication Date: 2019-07-12
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is that the adhesive glue curing speed is slow in the magnet steel fixing method in the prior art, and the bonding between the magnet steel and the magnet steel groove is not firm

Method used

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  • Method for fixing magnetic steel, rotor assembly and motor
  • Method for fixing magnetic steel, rotor assembly and motor
  • Method for fixing magnetic steel, rotor assembly and motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment provides a method for fixing the magnetic steel, wherein, along the axial direction of the rotor core 1, the length of the magnetic steel groove 11 is greater than the length of the magnetic steel 2, including the following steps:

[0053] S1: Embed the magnetic steel 2 into the magnetic steel groove 11 of the rotor core 1, the two end faces of the magnetic steel groove 11 and the corresponding end faces of the two ends of the magnetic steel 2 respectively form inward concave grooves 6, preferably two The depth of each groove 6 is consistent, for example, the depth of groove 6 is preferably 1mm;

[0054] Inject the anaerobic adhesive 3 into the gap formed between the side wall surface of the magnetic steel 2 and the inner wall surface of the magnetic steel groove 11, for example, preferably Loctite 545 anaerobic adhesive, along the axial direction of the rotor iron core 1, the anaerobic adhesive applied The length of the oxygen glue 3 after the magnetic ...

Embodiment 2

[0068] This embodiment provides a fixing method for the magnetic steel 2. Compared with the fixing method for the magnetic steel 2 provided in Example 1, the only difference is that the step S1 is changed to: to the magnetic steel groove of the rotor core 1 The inner wall surface of 11 is coated with anaerobic adhesive 3, and then the magnetic steel 2 is embedded in the preset position in the magnetic steel groove 11.

[0069] For this fixing method, first coat the required anaerobic adhesive 3 in the magnetic steel groove 11, then insert the magnetic steel 2 into the magnetic steel groove 11, and then pour sealant on the end faces of the two ends of the magnetic steel 2 , so that a closed environment is formed in the magnetic steel groove 11, and the rapid solidification of the anaerobic adhesive 3 is promoted in the closed environment, and the magnetic steel 2 and the magnetic steel groove 11 are bonded and fixed.

[0070]As an alternative implementation of step S1, the step...

Embodiment 3

[0072] This embodiment provides a rotor assembly, such as figure 2 , image 3 and Figure 6 As shown, it includes rotor core 1, magnetic steel 2, anaerobic adhesive 3 and two sealants. in,

[0073] The rotor core 1 is formed with an inner hole 12 and six magnetic steel grooves 11 along its axial direction, and the six magnetic steel grooves 11 are symmetrically distributed around the outer circumference of the inner hole 12 on the circumferential end face of the rotor core 1;

[0074] The magnetic steel 2 corresponds to the magnetic steel groove 11 one by one, and is suitable for being embedded in the magnetic steel groove 11. The length of the magnetic steel 2 is less than the length of the magnetic steel groove 11, and the end faces of the two ends of the magnetic steel groove 11 and the two ends of the magnetic steel 2 Inwardly recessed grooves 6 are respectively formed between the corresponding end faces, such as Figure 4 shown;

[0075] The anaerobic adhesive 3 is ...

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Abstract

The invention discloses a fixing method of magnetic steel, a rotor assembly and a motor. The fixing method comprises the steps of coating inner wall surfaces of magnetic steel tanks and / or side wall surfaces of magnetic steel with an aerobic adhesive and embedding the magnetic steel into the corresponding magnetic steel tanks; or embedding the magnetic steel into the corresponding magnetic steel tanks and injecting the aerobic adhesive into gaps between the corresponding magnetic steel and magnetic steel tanks; pouring a sealant into two end parts of the magnetic steel, curing the aerobic adhesive to isolate from the outside by the sealant and curing the aerobic adhesive to bond the magnetic steel and the corresponding magnetic steel tanks. The rotor assembly comprises a rotor core, the magnetic steel, the aerobic adhesive and sealing elements, wherein the magnetic steel tanks are formed in the rotor core; the magnetic steel is embedded into the magnetic steel tanks in a manner of one-to-one correspondence; the aerobic adhesive is arranged between the corresponding magnetic steel and magnetic steel tanks to fix the magnetic steel and the magnetic steel tanks; and the sealing elements are arranged on two end parts of the magnetic steel and a closed space for sealing the aerobic adhesive and the magnetic steel is enclosed by the sealing elements and the magnetic steel tanks thereof. The motor comprises the rotor assembly. The sealant on the magnetic steel is cured, so that the inside of each magnetic steel tank is isolated from the outside to form a closed environment; and the curing speed of the aerobic adhesive is increased in the closed environment.

Description

technical field [0001] The invention belongs to the technology of motors, and in particular relates to a method for fixing magnetic steel, a rotor assembly and a motor. Background technique [0002] In the prior art, the rotor iron core of the motor is provided with a magnet steel, in order to facilitate the assembly of the magnet steel into the magnet steel groove 11 provided on the circumference of the rotor iron core 1, such as figure 1 As shown, the gap fit is adopted between the magnet steel 2 and the magnet steel groove 11. In order to prevent the magnet steel 2 from moving in the magnet steel groove 11, it is necessary to fix the magnet steel 2 by spraying glue on the outer wall surface around the magnet steel 2. In the magnetic steel groove 11. [0003] For example, the Chinese patent document CN101159392A discloses a method for fixing rotor magnets, which includes the following steps: firstly apply anaerobic adhesive on the outer walls around the magnets, and then ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/03H02K1/27H02K1/28
CPCH02K1/27H02K1/28H02K15/03
Inventor 郝福刚李昊赵正钟成堡肖胜宇
Owner GREE ELECTRIC APPLIANCES INC