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Commutateur switch

A technology for switching switches and fixed terminals, which is applied in the direction of electric switches, electrical components, and contact electrical connections. Deformation, heat conduction suppression effect

Inactive Publication Date: 2008-09-24
FUJI ELECTRIC FA COMPONENTS & SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when performing such an operation of connecting electric wires to the external connection terminals of the diverter switch or pulling apart the connected electric wires, the heat applied to the external connection terminals may be conducted to the resin insulating base supporting these terminals, When the insulating base heated by this heat softens and deforms, and the tightening force of the terminal board by the insulating base becomes loose
If each terminal board shakes due to the slack, the positional relationship between the internal fixed contacts and the support frame will be misaligned, and the operation of the diverter switch will become unstable.
[0010] In addition, due to environmental pollution measures, lead-free solder that does not contain lead is more and more commonly used in soldering. However, lead-free solder has a higher melting point than lead-containing solder, and its wettability to terminal parts is lower than that of lead-free solder. Solder containing lead is low, so when using lead-free solder to connect wires, it takes longer to heat the soldering iron on the external connection terminal, so soldering that can withstand such a long heating time is desired. High heat-resistant toggle switch for work

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0039] figure 1 and figure 2 represents a first embodiment of the diverter switch according to the invention, figure 1 is its longitudinal section, figure 2 is a plan view showing the terminal block in this embodiment.

[0040] Because the toggle switch of this embodiment is similar in appearance to Image 6 and Figure 7 The existing example shown is roughly the same, so for the appearance structure of this embodiment, you can refer to Image 6 .

[0041] exist figure 1 and figure 2 In , structural elements that are the same as those of conventional switches are denoted by the same symbols, and descriptions thereof are omitted.

[0042] from figure 1 and figure 2 It can be clearly seen that in the changeover switch of Embodiment 1, the normally closed fixed terminal board 4, the normally open fixed terminal board 5, and the common terminal board 6 are the same as those of the prior art, and the middle part thereof is embedded in the insulating base 1, passing ...

Embodiment 2

[0048] In the first embodiment described above, a narrow portion in which the width of the conductor is reduced is formed by drilling a window hole in the middle portion of the terminal plate embedded in the insulating base, but it is also possible to cut the terminal plate from the side as described below. to form a stenosis.

[0049] exist image 3 and Figure 4 In the shown second embodiment, in the middle part of the terminal boards 4, 5, 6 embedded in the insulating base 1, there are respectively provided Figure 4 The slits 4m, 5m, and 6m shown by broken lines in the middle are formed with narrowed portions 4g, 5g, and 6g narrowed in width on the other side. In this case, the effect of loosening prevention of the terminal plates 4 , 5 , and 6 to the insulating base 1 can be increased by forming a step inserted into the notch.

[0050] also, Figure 5 It is a figure which shows the modification of the terminal board of Example 2, and in this Figure 5 Although the co...

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Abstract

The invention provides a diverter switch, which has high heat resistance, even if the external connecting terminal is heated, the softening and the deformation of the insulating base station made of resin for supporting the external connecting terminal can be restrained. A narrow part with narrow width is disposed at the part which is buried in the insulating base station of the normally closed fixed terminal plate, the normally open fixed terminal plate, and shared terminal plate and other terminal plates that get through the insulating base station of the diverter switch and are fixedly supported by the insulating base station, thus restraining heat conduction from the terminal plate to the insulating base station.

Description

technical field [0001] The present invention relates to a changeover switch incorporated in a push button switch and the like. Background technique [0002] Such a switch is widely known from Patent Document 1 and the like. [0003] Image 6 A representative configuration of a conventional changeover switch widely known from Patent Document 1 and the like is shown. [0004] Should Image 6 The selector switch includes a normally closed fixed terminal board 4 , a normally open fixed terminal board 5 , and a common terminal board 6 as fixed components. On the normally closed fixed terminal block 4, such as Figure 7 As shown, a fixed contact 4a is mounted on the tip end, and an external connection terminal 4b is integrally formed on the base end. In addition, fixed contacts 5 a are also attached to the top end of the normally open fixed terminal board 5 , and are arranged opposite to each other at a predetermined interval below the fixed contacts 4 a of the normally closed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/56H01H13/02H01H13/28
CPCH01H5/10H01H1/58H01H11/0056
Inventor 町田谨斋竹内刚久下山荣治郎
Owner FUJI ELECTRIC FA COMPONENTS & SYST CO LTD
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