Disc stepping motor

A stepping motor, disc type technology, applied in electrical components, electromechanical devices, etc., can solve the problems of low mechanical strength, complex overall structure, shortened axial dimension, etc., achieve high mechanical strength, simplify the overall structure, and improve excitation. performance effect

Active Publication Date: 2012-09-05
HANGZHOU MIGE MOTOR
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Problems solved by technology

[0004] Although the above scheme has improved the structure of the prior art to a certain extent, so that the axial dimension is greatly shortened, there are still at least shortcomings: the rotor of the motor is made of silicon steel sheets punched into multiple teeth or composed of several permanent magnets, and the overall structure Complicated, low mechanical strength, difficult to process, high energy loss

Method used

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Embodiment Construction

[0022] Such as Figure 1-4 As shown, the disc stepping motor includes a disc-shaped motor housing 1 formed by fastening and fixing a front end cover 11 and a rear end cover 12 . The motor shaft 2 passes through the motor housing 1 and can rotate relative to the motor housing 1 . A multi-pole magnetized annular disk 3 located in the motor housing 1 is fastened to the motor shaft 2 . The number of magnetic poles here is an even number. A winding 4 next to the annular disk 3 is fixed inside the motor housing 1 , and iron cores 5 are respectively fixed on both sides of the annular disk 3 .

[0023] More specifically, a positioning disc 6 is fixed on the motor shaft 2 , and the annular disk 3 is fixed on the positioning disc 6 . The windings 4 are fixed on the front end cover 11 , the number of the windings 4 is two groups and arranged symmetrically, and the front end cover 11 has a winding accommodation structure for fixing the windings 4 . The winding 4 has a ring-shaped wais...

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Abstract

The invention relates to the technical field of motors, in particular to a disc stepping motor, thus the problems of unreasonable structure, low intensity and the like in the prior art are solved. The motor comprises a disc motor shell which is formed by fastening and fixing a front end cover and a rear end cover; a motor shaft is arranged in the motor shell in a penetrating mode and is fixedly provided with a multipolar magnetizing circular disc which is positioned in the motor shell; windings adjacent to the circular disc are fixed in the motor shell; and iron cores are respectively fixed at two sides of the circular disc. The disc stepping motor has the advantages that the whole circular disc is in an integral structure, which can effectively improve the excitation performance of rotors and simplify the whole structure; the mechanical strength is high, a loose structure does not occur due to long service and the suffered impact; the structure is convenient to process and lower in manufacturing cost; the winding structure is simple and is easy to process; and in addition, because a position sensor is configured to inspect positions of the rotors, semi-closed loop control is realized.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a disc-type stepping motor. Background technique [0002] Most of the stator and rotor of the motor are composed of iron core and coil winding. When the motor is running, there are copper loss and iron loss, and its efficiency is difficult to be greatly improved. On the other hand, the axial size and shape of the motor are difficult to make very thin, which limits its application in special occasions. [0003] For this reason, people have carried out long-term exploration, put forward various solutions. For example, the Chinese patent literature discloses a magnet-concentrating permanent disk motor [Application No.: CN95213147.1]. The magnetic cap, the shape and size of the working surface of the magnetic cap is the same as the working surface of the pole teeth of the stator core, and the stator core is made of silicon steel sheets. In this way, the magnetic flux density of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K37/10
Inventor 丁阿伟
Owner HANGZHOU MIGE MOTOR
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