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Permanent magnetic rotor for electromotor and method for making same

A permanent magnet rotor and motor technology, applied in the manufacture of stator/rotor body, electrical components, electromechanical devices, etc., can solve the problems of weakening the resonance of the motor and fan blades, not suitable for mass production, time-consuming and labor-intensive, etc., to reduce resonance noise , the production is convenient and fast, and the effect of reducing the quantity

Inactive Publication Date: 2005-09-21
GUANGDONG WELLING ELECTRIC MACHINE MFG
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The permanent magnet rotor made in this way is a completely rigid structure, which is not conducive to weakening the resonance between the motor and the fan blades, and the sound is very harsh when the motor rotates with the fan blades
For this reason, some manufacturers have developed another type of permanent magnet rotor. The structure is to install the rotor assembly and two rubber pads inside the permanent magnet ring for anti-vibration. The permanent magnet rotor with this structure can better reduce noise, but Its disadvantage is that in the production process, not only the two rubber pads must be connected to the rotor core, but also the two rubber pads must be connected to the permanent magnetic ring, and the mutual connection between its multiple parts Completely rely on manual operation, the process is complex, time-consuming and labor-intensive, not suitable for mass production

Method used

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  • Permanent magnetic rotor for electromotor and method for making same
  • Permanent magnetic rotor for electromotor and method for making same
  • Permanent magnetic rotor for electromotor and method for making same

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Embodiment

[0020] The structure diagram of the present invention is as figure 1 As shown, it includes a permanent magnetic ring (1), a rotor core (3), a rotor shaft (4), the rotor shaft (4) passes through the shaft hole of the rotor core (3), and is connected with the rotor core (3) ) are fastened together, the permanent magnetic ring (1) is set on the outside of the rotor core (3), and high temperature liquid rubber (2) is injected between the permanent magnetic ring (1) and the rotor core (3), And the rubber (2) is respectively consolidated with the permanent magnetic ring (1) and the rotor iron core (3) after cooling.

[0021] The rotor shaft (4) and the shaft hole of the rotor iron core (3) are fastened together by riveting.

[0022] A protruding stop arm (1A) is provided on the inner wall of the permanent magnet ring (1), and a protruding stop arm (3A) is provided on the rotor core (3).

[0023] The method for manufacturing the permanent magnet rotor of the present invention compr...

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Abstract

A permanent magnetic rotor for motor and making method thereof, which contains permanent magnetic ring, rotor core, rotor axle, axle hole for rotor axle penetrating rotor core, high temperature liquid rubber filled between permanent ring and rotor core, the rubber consolidated with permanent magnetic ring and rotor core after cooling. Said invention can effectively eliminate the resonance between motor and fan blade and noise.

Description

1. Technical field: [0001] The present invention relates to a permanent magnet rotor used in electric motors and a manufacturing method thereof, in particular to a permanent magnet rotor used in a brushless DC motor for driving air conditioner blades and a manufacturing method thereof, belonging to permanent magnet rotors used in motors and their manufacturing methods Modification technology of manufacturing method. 2. Background technology: [0002] The traditional permanent magnet rotor used for electric motors is to place the rotor shaft in the mold, and inject the permanent magnet material on the rotor shaft through high-temperature spraying to form a permanent magnet rotor; It is directly or indirectly bonded to the rotor shaft. The permanent magnet rotor made in this way has a completely rigid structure, which is not conducive to weakening the resonance between the motor and the fan blades, and the sound is harsh when the motor rotates with the fan blades. For this r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K15/03H02K29/00
Inventor 高烜王玉龙史国俊陈显辉
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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