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Linear motor and compressor incorporating same

A linear motor and compressor technology, applied in the field of compressors, can solve the problems of hindering the vibration magnetic flux, difficult to manufacture the magnetic yoke, and unable to vibrate the body.

Inactive Publication Date: 2006-04-26
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With such a structure, the non-magnetic part will hinder the vibration flux, so the vibration body cannot be effectively vibrated.
[0007] (3) Both the outer yoke and the inner yoke are formed by laminating electromagnetic steel plates along the circumferential direction of the yoke, so the manufacture of the yoke is difficult

Method used

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  • Linear motor and compressor incorporating same
  • Linear motor and compressor incorporating same
  • Linear motor and compressor incorporating same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] figure 1 The configuration of the linear motor 1 is shown. The linear motor 1 has a cylindrical inner yoke part 3, a coil part 2 wound on the inner yoke part 3, and the inner yoke part 3 is arranged inside the outer yoke part 4, which is located in the inner yoke part 3. The gap with the outer yoke part 4, the permanent magnet pieces 5a, 5b that vibrate with the magnetic flux generated by the coil part 2, and the cylindrical vibrating body 6 that supports the permanent magnet pieces 5a, 5b. The permanent magnet pieces 5 a and 5 b are fixed to the side surface of the vibrating body 6 on the side of the inner yoke portion 4. At one end of the vibrating body 6 there is an output unit 7 for taking out the vibration of the vibrating body 6 to the outside. The output portion 7 has a shape in which the cylindrical vibrating body 6 is covered with a cover. In addition, a resonant spring is mounted on the output shaft of the output unit 7, and by using the resonance of the spring,...

Embodiment 2

[0030] image 3 The linear motor 21 shown includes a cylindrical outer yoke portion 23 having a coil portion 22 wound with a wire, an inner yoke portion 24 located inside the outer yoke portion 23, and an inner yoke portion 23 located between the outer yoke portion 23 and the inner yoke portion 23. The gap between the yoke portion 24, the permanent magnet pieces 25a, 25b that vibrate with the magnetic flux generated by the coil portion 22, the vibrating body 26 that supports and fixes the permanent magnet pieces 25a, 25b, and the vibrating body that fixes the permanent magnet pieces 25a, 25b 26 is located between the permanent magnet pieces 25a, 25b and the inner yoke portion 24. The vibrating body 26 has magnetism. In addition, the inner yoke portion 24 and the outer yoke portion 23 are formed by stacking electromagnetic steel in a circumferential shape.

[0031] According to the above configuration, the gap between the outer yoke portion 23 and the inner yoke portion 24 can be m...

Embodiment 3

[0034] Figure 4 The configuration of the linear motor 31 is shown. The linear motor 31 has a cylindrical inner yoke portion 33, a coil portion 32 on which the inner yoke portion 33 is wound, and an outer yoke portion 34 with the inner yoke portion 33 arranged on the inner side. The gap between the yoke portion 33 and the outer yoke portion 34, the permanent magnet piece 35 that vibrates with the magnetic flux generated by the coil portion 32, and the cylindrical vibrating body 36 that supports the permanent magnet piece 35. The permanent magnet piece 35 is fixed to the side surface of the vibrating body 36 on the inner yoke 33 side. At one end of the vibrating body 36, there is an output unit 37 for extracting the vibration of the vibrating body 36 to the outside. The output portion 37 has a shape in which the cylindrical vibrating body 36 is covered with a cover.

[0035] The linear motor will be described in detail below.

[0036] The inner yoke 33 is formed by stacking rectan...

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PUM

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Abstract

A linear motor comprising a cylindrical outer yoke part (4), a cylindrical inner yoke part (3) arranged inside the outer yoke part (4), and a coil part provided on the inner yoke part (3) (2), the permanent magnet piece (5a, 5b) that vibrates along with the magnetic flux that the coil part (2) produces, and the vibration body (6) that supports this permanent magnet piece (5a, 5b), the vibration body (6) The material is magnetic material. Because the vibrating body (6) is a magnetic material, the magnetic flux circuit generated by the outer yoke portion (4) and the inner yoke portion (3) passes through the vibrating body (6) without being hindered by the vibrating body (6), Therefore, linear motors can perform vibratory motion efficiently.

Description

[0001] This application is a patent whose international application date is April 12, 2000, international application number is PCT / JP00 / 02382, China's national application date is April 12, 2000, application number is 00800549.4, and the invention name is "linear motor". Divisional application of the application. Technical field [0002] The present invention relates to a linear motor for linear motion and a compressor with the linear motor. Background technique [0003] use Figure 19 The structure of a conventional linear motor is explained. In the cylindrical outer yoke portion 201, a cylindrical inner yoke portion 203 with a coil portion 202 is placed, and a permanent magnet piece 204 is arranged between the outer yoke portion 201 and the inner yoke portion 203, Along with the magnetic flux generated by the inner yoke portion 203, the permanent magnet piece 204 vibrates, and the vibrating body to which the permanent magnet piece 204 is fixed reciprocally vibrates. [0004] Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/16
Inventor 川野慎一郎本田幸夫村上浩
Owner PANASONIC CORP