Actuator

A technology for actuators and moving bodies, applied in electrical components, electromechanical devices, etc., can solve problems such as difficult adhesives, filling into gaps, and reduced bonding strength of coils and coil cages, and achieve the effect of not easily damaged.

Active Publication Date: 2019-10-11
SANKYO SEIKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coil is manufactured by winding a coil wire, and due to such characteristics, the outer diameter dimension tends to vary, so the width of the gap between the inner peripheral surface of the coil arrangement hole and the outer peripheral surface of the coil tends to fluctuate.
Therefore, even if a certain amount of adhesive is poured into the gap, it is difficult to properly fill the gap with the adhesive
Therefore, when the adhesive is excessive compared with the width of the gap, the adhesive overflows from the gap to the outside, and when the adhesive is insufficient compared with the width of the gap, the bonding of the coil and the coil holder is difficult. strength will decrease

Method used

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other Embodiment approach

[0126] In the above-mentioned embodiment, the permanent magnets (the first permanent magnet 71 and the second permanent magnet 72) are provided on both sides of the first direction Z relative to the coil 5, but it is also possible to apply the present invention to One side of the first direction Z of 5 is provided with an actuator of a permanent magnet.

[0127] In the above-mentioned embodiment, the coil holder 4 and the coil 5 are provided on the support body 2, and the permanent magnets (the first permanent magnet 71 and the second permanent magnet 72) and the yokes (the first yoke 81 and the second The yoke 82) is provided on the movable body 6. However, the structure using the first plate 47 and the second plate 48 or the structure for providing slack on the power supply substrate 10 can also be applied to provide the coil holder 4 and the coil 5 on the movable body 6, and permanently The magnets (the first permanent magnet 71 and the second permanent magnet 72 ) and the...

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Abstract

The invention provides an actuator capable of properly adhering a coil arranged in a coil arrangement hole of a coil holder to the coil holder. In the actuator, a coil (5) is arranged inside a coil arrangement hole (410) that passes through the coil holder (4) in a first direction Z, and a first plate (47) is arranged so as to overlap the coil arrangement hole (410) and a plate section (41) from one side Z1 in the first direction Z. Therefore, after the adhesive is filled into a hollow core part (50) of the coil (5), a second plate (48) is overlapped. The adhesive flows between the coil (5) and the coil holder (4), between the coil (5) and the first plate (47), between the first plate (47) and the coil holder (4), between the coil (5) and the second plate (48), and between the second plate(48) and the coil holder (4). Therefore, when the adhesive is cured, the coil (5), the first plate (47), the second plate (48), and the coil holder (4) are appropriately fixed by the adhesive.

Description

technical field [0001] The present invention relates to an actuator that vibrates a movable body. Background technique [0002] As a device for notifying information by vibration, an actuator is proposed. The actuator includes: a movable body with a permanent magnet, a support body with a coil facing the permanent magnet, and the coil is arranged in a penetrating position on the support body. The coil is arranged in a hole in the plate portion of the coil holder (refer to Patent Document 1). [0003] As in the structure described in Patent Document 1, in the structure in which the coil is arranged in the coil arrangement hole penetrating through the plate portion of the coil holder, it is necessary to flow an adhesive into the coil generated when the coil is arranged inside the coil arrangement hole. The coil is adhered to the coil holder by disposing a gap between the inner peripheral surface of the hole and the outer peripheral surface of the coil. However, the coil is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/16
CPCH02K33/16H02K33/18
Inventor 北原裕士森亮土桥将生
Owner SANKYO SEIKI MFG CO LTD
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