Voice coil motor and three-phase linear motor

A technology of voice coil motors and linear motors, applied in the manufacture of motor generators, electric components, electrical components, etc., can solve problems such as storage problems, and achieve the effects of reducing heat generation, reducing the number of wiring, and strengthening expansion

Inactive Publication Date: 2005-03-09
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the width of the short side is also halved compared with th...

Method used

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  • Voice coil motor and three-phase linear motor
  • Voice coil motor and three-phase linear motor
  • Voice coil motor and three-phase linear motor

Examples

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Embodiment Construction

[0036] figure 1 Represents the voice coil motor and the three-phase linear motor of this embodiment with Figure 10 Same top view form. In the case of the magnet device of the voice coil motor, at least two pairs of permanent magnets 11 are arranged at intervals between coils extending in the uniaxial direction. On the other hand, in the magnet device in the case of a three-phase linear motor, a plurality of pairs of permanent magnets 11 are arranged at intervals between coils extending in the uniaxial direction. In particular, the magnetic poles of the permanent magnets 11 facing each other in each pair are different from each other, and the magnetic poles of the permanent magnets 11 adjacent to each other are also different from each other. As a result, a strong magnetic flux density is generated in the gaps serving as the intervals between the coils.

[0037] In addition, in this embodiment, the above-mentioned connected saddle coil is used as the coil, but especially i...

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Abstract

To provide a three-phase linear motor effective in the reduction of heating from coils. The three-phase linear motor is so constituted that a plurality of pairs of permanent magnets in which different magnetic poles are opposed to each other are arranged with a coil installation space in which three-phase coils are placed, positioned in-between; and the permanent magnets adjoining in the direction of movement are different from each other in magnetic pole. Coils 60U, 60W, and 60V in respective phases comprise two saddle coils 60A and 60B in which the short sides of a substantially rectangular coil are constituted as folded portions that form an angle of approximately 90[deg.] to the straight portions of the long sides. The saddle coils are so combined that the two folded portions in each saddle coil face in opposite directions. At the same time, they are so combined that the two straight portions between the two folded portions of either saddle coil are brought as tight-contact straight portions into tight contact with the two straight portions between the two folded portions of the other saddle coil. The coils in the individual phases are so arranged that they are lined in series in the direction of movement, and the tight-contact straight portions of the coils in adjacent phases are brought into tight contact with each other.

Description

technical field [0001] The invention relates to a voice coil motor and a three-phase linear motor. Background technique [0002] One of the most common coil monomers used to form linear motors is known, such as Figure 9 What is shown is a so-called racetrack-shaped component. The coil 100 is produced by rotating a shaft passing through the center of the coil, and has a planar structure. The two linear portions (long side portions) 101 extending in the vertical direction in the figure are effective portions for generating thrust. On the other hand, the upper and lower end portions (short side portions) have only the function of connecting the two linear portions 101 and are called short side portions 102 . In addition, the center-to-center distance between the two linear portions 101 is Lc. [0003] use Figure 9 The basic structure in the case of a racetrack-shaped coil to form a voice coil motor or a three-phase synchronous linear motor is as follows Figure 10 shown. ...

Claims

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Application Information

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IPC IPC(8): H02K41/03H02K41/02
CPCH02K15/03H02K33/14H02K41/03
Inventor 森英彦金子诚臼井道太郎筱平大辅
Owner SUMITOMO HEAVY IND LTD
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