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Oscillatory actuator

A transmission device, vibration type technology, applied in electromechanical devices, fluids utilizing vibration, generators/motors, etc., can solve the problem of increasing the weight and cost of the amplitude control spindle 14, difficult to achieve miniaturization, and difficult to achieve light weight and low cost. issues such as

Inactive Publication Date: 2006-12-27
MATSUSHITA ELECTRIC WORKS LTD
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Problems solved by technology

Therefore, it is necessary to have a space for accommodating the amplitude control spindle 14 in the transmission device, so it is difficult to realize miniaturization.
In addition, since the above-mentioned amplitude control spindle 14 itself increases in weight and cost, it is difficult to achieve weight reduction and cost reduction.
[0014] On the other hand, although the vibration-type transmission device in the above-mentioned Patent Document 2 does not include the amplitude-controlled spindle in the above-mentioned Patent Document 1, how to achieve low vibration is one of the major problems.

Method used

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  • Oscillatory actuator
  • Oscillatory actuator
  • Oscillatory actuator

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Embodiment Construction

[0042] The specific implementation manner of the present invention will be described below in combination with schematic diagrams. In addition, the parts with the same structures or functions as those described in the background art are given the same reference numerals, and will not be described in detail.

[0043] First, in figure 1 The vibration type actuator 26A related to Embodiment 1 of the present invention is described in . The transmission device 26A is developed on the basis of the transmission device described in the above-mentioned Patent Document 1 in combination with the present invention.

[0044] This vibration-type transmission device 26A is equipped with a movable part 27, an electromagnetic drive part 28 that uses electromagnetic force to make the movable part 27 reciprocate in a specific direction (in the figure, the up-down direction, that is, the axial direction), and the main box. 30.

[0045] The movable part 27 is constituted by the plunger 1 and t...

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Abstract

An oscillatory actuator has a movable portion, and electromagnetic driver for reciprocating the movable portion in a certain direction by an electromagnetic force. The movable portion and the electromagnetic driver are housed in a body casing so as to be integrally reciprocatable in a direction identical to the certain direction. The movable portion and the electromagnetic driver are reciprocated with phases opposite to each other in the body casing. The electromagnetic driver therefore functions as an amplitude control weight, which can eliminate or simplify another amplitude control weight to reduce the size, the weight, and the cost of the actuator as a whole.

Description

technical field [0001] The invention relates to a low-vibration vibration transmission device, which has the advantages of small size, light weight and low cost. Background technique [0002] A conventional vibration-type actuator generally includes a movable part and an electromagnetic drive part that drives the movable part back and forth using electromagnetic force. This vibration-type actuator is generally used as a drive unit for products such as electric shavers and electric toothbrushes. [0003] For example, the linear oscillator described in Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2002-199689) is a vibration-type transmission device, and it has a movable part capable of reciprocating motion, a case for accommodating the movable part, and The amplitude control spindle is movably supported by the box. The movable part and the amplitude control spindle of the linear oscillator are driven to reciprocate at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/00H02K33/02H02K33/16H02K33/18B06B1/04A61C17/22B26B19/28
CPCH02K33/00H02K33/02A61C17/3445H02N2/12
Inventor 谷口真一清水宏明成濑晴彦
Owner MATSUSHITA ELECTRIC WORKS LTD
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