Stator separating stepping motor
A stepping motor, split technology, applied in electrical components, electromechanical devices, etc., can solve the problems of difficult processing, difficult drawing and processing, etc.
Inactive Publication Date: 2009-10-28
ASIA OPTICAL CO INC
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- Abstract
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- Application Information
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Problems solved by technology
[0006] Although this stator structure can be directly assembled, because the yoke 6 and the outer cylinder 7 adopt an integrated structure, that is, the cross section of the yoke 6 and the outer cylinder 7 is connected into a U shape (such as image 3 As shown), it will be more difficult to extract and process this integrated part, and it is also difficult to ensure that the cross-sectional area and length of several magnetic pole pieces 601 of the magnetic yoke 6 in the inner layer can be maintained after the extraction is completed. A certain proportion is often repaired after the extraction is completed, so it is quite difficult to process
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[0017] like Figure 4 and Image 6 As shown, the preferred embodiment of the stator split stepping motor of the present invention comprises a mandrel 10, a magnet unit 20 fixed outside the mandrel 10, and a stator unit 30 sleeved outside the magnet unit 20 , a fixing plate 50 sealed on one side of the stator unit 30 and a bottom cover unit 60 sealed on the other side of the stator unit 30 .
[0018] The mandrel 10 is made in the shape of a round rod and extends along an axis L. As shown in FIG.
[0019] Cooperate with reference Figure 7 , the magnet unit 20 is fixed on the outside of the mandrel 10 by a plurality of magnet blocks 21 with different polarities around the axis L and staggered.
[0020] The stator unit 30 of this embodiment has two coil formers 31 arranged in a row along the axis L, two sets of coils 32 respectively wound on the outside of the coil formers 31, and two sets of coils 32 respectively inserted on the coil formers along the axis L from outside to i...
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A stator split stepping motor, comprising a spindle, a magnet unit, a stator unit sleeved outside the magnet unit, a fixed plate sealed on one side of the stator unit and a Bottom cover unit on the other side of the stator unit. The stator unit has two coil formers, two sets of coils wound outside the coil formers, two pairs of yokes which are oppositely inserted inside the coil formers along the axis, and an outer cylinder sleeved outside the coil formers, The coil frame has a positioning block passing through a slot of the outer cylinder, and an inner ring surface of the coil frame is concavely provided with several slots, and several magnetic pole pieces of the magnetic yoke are inserted into the slots in a staggered manner.
Description
technical field [0001] The invention relates to a stepping motor, in particular to a stator split type stepping motor. Background technique [0002] The existing stepper motor stator structure generally adopts the following two methods: [0003] First, the integrated structure of the yoke and the coil frame: such as figure 1 As shown, the stator structure has two pairs of magnetic yokes 1 inserted in opposite directions along an axis, two coil frame units 2 wrapped outside the magnetic yokes 1 and a coil unit 3 wound outside the coil frame unit 2 . The bobbin unit 2 is molded and covered with plastic after the yoke 1 is assembled. [0004] For this stator structure, the yoke 1 must be assembled first, and then the assembled yoke 1 is put into the mold to cover the coil frame unit 2. Therefore, the assembly of the overall stator structure is quite complicated and costly. It is necessary to prepare a mold for injection molding into the coil frame unit 2, and the manufactur...
Claims
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IPC IPC(8): H02K37/14
Inventor 占建贵
Owner ASIA OPTICAL CO INC