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A switch and recess technology, applied in the field of inference switches, can solve the problems of plastic deformation of movable electrodes, damage of pressing parts, adhesion and peeling, etc., and achieve the effects of miniaturization, load suppression, and stress concentration avoidance

Active Publication Date: 2016-04-06
MITSUMI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the movable electrode may not return elastically after being plastically deformed.
In addition, since the high-rigidity pressing member cannot follow the elastic deformation of the movable electrode, local concentration of stress occurs, and not only the movable electrode is plastically deformed, but also the pressing member is damaged or bonded and peeled off.
[0008] In addition, when an unexpected impact is applied to the switch, since the highly rigid pressing member collides with the movable electrode, plastic deformation of the movable electrode or damage to the pressing member occurs.
As a result, the function originally required by the switch cannot be maintained

Method used

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Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the scales of the drawings used in the following description are appropriately changed so that the sizes of the components can be recognized.

[0032] As an embodiment of the switch of the present invention, figure 1 A perspective view showing an inference switch 1, figure 2 Represents a four-sided graph. exist figure 2 Among them, (a) is a top view, (b) is a front view, (c) is a bottom view, and (d) is a right side view. Since the shapes viewed from the back and the left side are symmetrical to the shapes shown in the front view and the right side view, respectively, illustration is omitted.

[0033] As shown in these figures, the inference switch 1 has an appearance in which a pressing member 6 is provided on the upper surface of an insulating resin case 2 mounted on a circuit board.

[0034] Such as image 3 As shown in the exploded persp...

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PUM

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Abstract

The present invention provides a switch that satisfies the demand for miniaturization, suppresses the load on a movable electrode, and realizes a long life and an improvement in impact resistance. The housing (2) mounted on the circuit board has a recess (2a). A plurality of fixed electrodes (3a, 3b) and a movable electrode 5 are arranged in the concave portion (2a). The movable electrode (5) is displaceable between a first position where the plurality of fixed electrodes (3a, 3b) are in a conductive state and a second position where they are in a non-conductive state. The pressing member (6) is disposed so as to cover the concave portion (2a), and displaces the movable electrode (5) from the second position to the first position by a pressing force from the outside. The pressing member (6) is elastically deformed by the pressing force to increase the contact area with the movable electrode (5).

Description

technical field [0001] The present invention relates to switches used in various small electronic devices, and more particularly to inference switches mounted on circuit boards. Background technique [0002] In such a device, a recess is formed in a case mounted on a circuit board, and a plurality of fixed electrodes and movable electrodes are arranged in the recess. The movable electrode is equipped with a pressing member that can be elastically displaced between a first position where the plurality of fixed electrodes are in a conductive state and a second position where the plurality of fixed electrodes are in a non-conductive state. The movable electrodes at the two positions are opposite to each other. When the pressing member displaces the movable electrode to the first position by the pressing force from the outside, the fixed electrodes are in a conduction state. When the pressing force is released, the movable electrode elastically returns to the second position, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/14H01H13/26
CPCH01H13/50H01H13/48H01H2205/016H01H2221/064H01H2221/082H01H2221/084H01H2227/034H01H2221/002
Inventor 菊池秀武
Owner MITSUMI ELECTRIC CO LTD