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Coreless motor

A hollow cup and bearing technology, used in electrical components, electromechanical devices, electric components, etc., can solve the problems of difficult to meet the reliability requirements, single wire package, etc., and achieve improved reliability and stability, strong magnetic field, and large torque. Effect

Inactive Publication Date: 2013-02-13
苏州波斯特克精密电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention designs a hollow cup motor with a new structure to solve the problem that the front end of the wire package of the coreless motor in the prior art, that is, the rotor is suspended, and the rear end of the wire package is supported by a bearing, that is to say, the wire package is a single bearing. Support, the stability and reliability of the wire package of this structure are difficult to meet the requirements. The purpose of the present invention is to provide a new type of coreless motor, which is used to improve the stability and reliability of the coreless motor

Method used

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specific Embodiment 1

[0016] Such as image 3 A hollow cup motor shown includes a housing 1, a central magnet 2, a commutator 3 and 4 located at the outer diameter of the bearing, a rotor 5, the rear end of the wire package is fixed on the bearing 1, and the front end of the rotor 5 is connected to the shaft 6 Connected, the shaft 6 passes through the bearing 2 fixed on the shell 1. The so-called "rear end" refers to the end with the commutator and the brush, and the so-called "front end" refers to the end without the commutator and the brush, and the bearing 1 is an external transformation.

specific Embodiment 2

[0017] Such as Figure 4 A hollow cup motor shown includes a shell, a central magnet, a commutator located at the outer diameter of the bearing, a rotor, and the rear end of the wire package is fixed on the bearing 1. The front end of the rotor is connected to the shaft 6, and the shaft 6 passes through the Bearing two fixed on the shell. The so-called "rear end" refers to the end with the commutator and the brush, and the so-called "front end" refers to the end without the commutator and the brush. Magnets 7 and 8 are used to further enhance the magnetic field generated by the motor to increase the torque.

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Abstract

The invention relates to a coreless motor which comprises a shell (1), a center magnet (2), commutators (3 and 4) and a rotor (5). The commutators (3 and 4) are arranged on the external diameters of bearings, and the rear end of the rotor (5) is fixed on the bearing I (9). The coreless motor is characterized in that the front end of the rotor (5) is connected with a shaft (6), and the shaft (6) penetrates through the bearing II which is fixed on the shell (1). Due to the adoption of the coreless motor designed by the invention, a coil is supported by two bearings, the defects of low stability and reliability of one bearing supporting the coil in the prior art are overcome, and the structural reliability and stability are improved. Furthermore, due to the adoption of dual magnets, the magnetic field generated by the motor is stronger, and the torque is larger.

Description

technical field [0001] The invention relates to a motor, in particular to a hollow cup DC motor. Background technique [0002] At present, coreless motors are mostly used in electronic products, and coreless motors usually refer to a structure of DC brushed motors. The hollow cup motor has a shell, and a brush is provided at one end of the shell, and a motor stator and a motor rotor composed of a shaft, a commutator assembly, a hollow cup coil, a magnetic steel, and a bearing are arranged in the shell. The existing hollow cup motors are all cylindrical or cylindrical in shape, and the brushed DC motor is composed of stator magnets, rotor wire wraps, commutators, brushes, shafts, bearings, end covers, casings and other components, such as figure 1 . [0003] Traditional rotor wire wraps are wound onto tin steel laminations. The so-called coreless motor, such as figure 2 As shown in the figure, the rotor has only wire wraps and no tin steel laminations. The magnet is loc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K23/26H02K5/16
Inventor 侯春涛
Owner 苏州波斯特克精密电机有限公司