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Hollow cup permanent magnetic DC motor stator assembly

A technology of DC motors and hollow cups, which is applied in the direction of electric components, manufacturing motor generators, electrical components, etc., can solve the problems of difficult parts processing and overall assembly, high manufacturing costs, and complex structures, and achieves easy manufacturing and installation. Simple, firm, and good craftsmanship

Inactive Publication Date: 2007-07-04
ZHEJIANG LUFA MICRO MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of stator assembly has the disadvantages of relatively complex structure, difficulty in parts processing and overall assembly, and high manufacturing cost

Method used

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  • Hollow cup permanent magnetic DC motor stator assembly
  • Hollow cup permanent magnetic DC motor stator assembly
  • Hollow cup permanent magnetic DC motor stator assembly

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] With reference to the embodiment of the hollow cup permanent magnet DC motor stator assembly of the present invention shown in Fig. 2, this embodiment comprises casing 4 and the magnetic steel 3 in it, is provided with a plastic connecting body 6 in the inner hole of casing 4, and its A through hole 7 coaxial with the casing 4 is provided inside, and the inner hole of the magnetic steel 3 matches the outer diameter of the plastic connecting body 6 so that the magnetic steel 3 is fixed on the plastic connecting body 6 . The inner hole of the casing 4 is provided with an everted flange 8, wherein the flange 8 is divided into three equal parts evenly distributed, as shown in Figure 3, the flange 8 is embedded in the plastic connecting body 6 to strengthen the plastic connecting body 6 The bonding force with the casing 4. The end of the inner hole of the ...

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PUM

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Abstract

A hollow cup permanent magnet DC motor stator component includes the chassis (4) and the magnet (3) inside, and the inner hole of the said chassis (4) is equipped with a plastic connector (6), the said plastic connector (6) has the through-hole (7) which is coaxial with the said chassis (4), the said inner hole of the said magnet (3) matching with the outer diameter of the said plastic connector (6), making the said magnet (3) fixed on the said plastic connector (6). The hollow cup permanent magnet DC motor stator component of the invention installs the plastic connector (6) in the inner hole of the chassis (4), and installs the magnet (3) to the plastic connector (6), and it has simple and solid structure, relatively easy manufacture and installation, good crafts, and meanwhile, it uses wear-resistant plastic to replace copper-based oil bearings, further saving the costs.

Description

technical field [0001] The invention relates to a stator assembly of an electric motor, in particular to a stator assembly of a hollow cup permanent magnet DC motor. Background technique [0002] Coreless permanent magnet DC motors are usually used in cellular phones, PDAs, PC information packets and other small mobile devices that use pulse signals to prompt incoming calls or information, as well as micro drive motors. As shown in Figure 1, the structure of the existing coreless permanent magnet DC motor stator assembly is to press-fit a metal bushing 2 in the inner hole of the casing 4, and the outer circle of the other end of the metal bushing 2 is connected to the outer circle of the magnetic steel 3. The inner holes are matched and bonded, and two copper-based oil-impregnated bearings 1 and 5 are installed at both ends of the metal bushing 2 respectively. This kind of stator assembly has the disadvantages of relatively complex structure, difficulty in parts processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/04H02K15/00
Inventor 陆勤陆卫星梁跃辉
Owner ZHEJIANG LUFA MICRO MOTOR