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Built-in tangential-type rotor core, built-in tangential-type rotor, and motor

A rotor core and iron core technology, applied in the field of built-in tangential rotors, can solve problems such as motor rotor demagnetization, achieve the effects of improving reliability, solving rotor demagnetization, and improving utilization

Inactive Publication Date: 2016-11-09
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One object of the present invention is to propose a built-in tangential rotor core that solves the problem of demagnetization of the motor rotor during the operation of the motor

Method used

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  • Built-in tangential-type rotor core, built-in tangential-type rotor, and motor
  • Built-in tangential-type rotor core, built-in tangential-type rotor, and motor
  • Built-in tangential-type rotor core, built-in tangential-type rotor, and motor

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Embodiment 1

[0031] The preferred embodiment discloses a built-in tangential rotor core. Such as figure 2 and image 3 As shown, the rotor core includes a core body 1 and a plurality of magnetic tile grooves 2 extending radially along the core body 1, at least two magnetic tiles are formed in at least one of the magnetic tile grooves 2 As for the fixing structure 21, two adjacent magnetic tile fixing structures 21 in each magnetic tile groove 2 are at least partially isolated from each other.

[0032] The interior of the magnetic tile groove is at least partially isolated from each other. Different magnetic tile fixing structures can use rotor magnetic tiles with different performances to improve the utilization rate of the rotor magnetic tiles; it can effectively solve the problem of motor rotor demagnetization during the operation of the motor and improve the reliability of the motor. sex.

[0033] Specifically, the magnetic tile groove 2 formed with at least two magnetic tile fixing...

Embodiment 2

[0038] This preferred embodiment discloses a built-in tangential rotor. Such as Figure 4 As mentioned above, the rotor includes magnetic tiles 3 and various rotor cores as described in the first preferred embodiment. At least two independent magnetic tiles 3 are installed in at least one magnetic tile slot 2 of the rotor core, and each magnetic tile 3 is pressed into and fixed in a magnetic tile fixing structure 21 with glue.

[0039] The two magnetic tiles in the magnetic tile groove are independent of each other. This segmented structure can give full play to the performance of the magnetic tiles at different positions, facilitate the replacement of the magnetic tiles separately, and reduce the risk of motor demagnetization.

[0040] The two magnetic tiles 3 in each magnetic tile groove 2 are independent of each other, so different magnetic tiles 3 can be arranged respectively according to needs. That is, the magnetic tiles 3 in the rotor can form various matching schemes...

Embodiment 3

[0043] This preferred embodiment discloses a built-in tangential rotor, the structure of which is basically the same as that of preferred embodiment 2, the difference is that, as Figure 5 As mentioned above, in the magnetic tile groove 2 installed with at least two mutually independent magnetic tiles 3, the at least two magnetic tiles 3 are magnetic tiles of different types.

[0044] In view of the fact that the magnetic tile 3 is easily demagnetized due to the air gap magnetic field near the edge of the air gap (the air gap here refers to the gap formed between the outer wall of the rotor and the inner wall of the stator), so preferably, it is arranged near the edge of the air gap. Compared with the magnetic tiles 3 arranged far away from the edge of the air gap, the magnetic tiles 3 at Tile 3 has higher magnetic properties, preventing demagnetization while saving costs.

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Abstract

The invention discloses a built-in tangential-type rotor core, a built-in tangential-type rotor and a motor, and belongs to the technical field of motors, and aims at solving a problem of rotor demagnetization in the prior art. The rotor core comprises an iron core main body and a plurality of magnetic tile grooves extending in the radial direction of the iron core main body. The interior of at least one magnetic tile groove is provided with at least two magnetic tile fixing structures. The two adjacent magnetic tile fixing structures in each magnetic tile groove are at least partly isolated from each other. The rotor comprises a magnetic tile, and also comprises the above rotor core. The interior of at least one magnetic tile groove of the iron core is provided with at least two independent magnetic tiles, and each magnetic tile is disposed in one magnetic tile fixing structure. According to the invention, the magnetic tile fixing structures in the rotor core, the rotor and the motor can employ rotor magnetic tiles with different performances, and improve the utilization rate of the rotor magnetic tiles. The problem of rotor demagnetization of a motor rotor can be effectively solved in an operation process of the motor, and the reliability of the motor is improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a built-in tangential rotor core, a built-in tangential rotor including the rotor core, and a motor including the built-in tangential rotor. Background technique [0002] A permanent magnet motor consists of a stator and a rotor, such as figure 1 Compared with surface-mounted and embedded radial rotors, the shown built-in tangential rotor core can effectively increase the magnetic flux area, improve the effective air gap flux, and improve the performance of the motor. [0003] During the operation of the motor, the existing rotor poles with a built-in tangential rotor core will generate demagnetization phenomenon, and for the tangentially magnetized magnet steel, the demagnetization is mostly concentrated at the edge of the magnet steel. Contents of the invention [0004] An object of the present invention is to propose a built-in tangential rotor core that solves the problem o...

Claims

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Application Information

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IPC IPC(8): H02K1/27
CPCH02K1/276
Inventor 黄海良高晓峰王周叶胡余生左家禹
Owner GREE ELECTRIC APPLIANCES INC
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