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Protection device

A technology for protection devices and installation parts, which is applied in the direction of emergency protection circuit devices, coupling devices, circuit devices, etc., can solve the problems of narrowness and inability to firmly hold the SPD plug, etc., achieve light contact, miniaturization, and lighten the burden Effect

Active Publication Date: 2012-05-09
SANKOSHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition, in order to achieve miniaturization, the size of the protector is reduced as much as possible, so the part to be held by fingers is narrow, so that the SPD plug cannot be firmly grasped.
For this reason, it is difficult to remove the SPD plug from the socket board when performing maintenance, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0066] (Structure of the first embodiment)

[0067] figure 1 It is a perspective view showing the overall appearance of the protective device according to the first embodiment of the present invention. figure 2 yes means figure 1 A perspective view of the separated state of the socket board 10 and the SPD plug 40 in the protection device 1 of FIG.

[0068] The protection device 1 is a power supply protection device for protecting power supply equipment by suppressing abnormal voltages and currents such as lightning and surges intruding into a circuit (such as a power line), and has a socket board 10 and a plug (such as an SPD plug) 40. The protection device 1 is configured such that the SPD plug 40 is along figure 2 The direction shown by the arrow in the socket can be inserted or detachably inserted and installed on the socket board 10 .

[0069] image 3 is seen from the bottom figure 2 A perspective view of the SPD plug 40. Figure 4A ~ Figure 4E yes figure 1 Fiv...

no. 2 example

[0129] Figure 10A It is a perspective view showing the plug terminal on the SPD plug side and the socket contact on the socket board side in the second embodiment of the present invention. Figure 10B yes means Figure 10A Cross-sectional view of the engaged state of the plug terminal and the socket contact.

[0130] The socket contact 134 on the socket board side in the second embodiment corresponds to the socket contact 34-1 of the first embodiment, and consists of an elastic cylindrical portion 134a and a plurality of cut grooves formed in the cylindrical portion 134a. 134c and a first mounting portion (for example, a first screw portion) 134d, and is formed of a metal member.

[0131] The cylindrical portion 134a is a member that is open at one end and closed at the other end, and the cylindrical portion 134a has an opening from figure 2 The illustrated insertion holes 31-1, 31-2 on the side of the socket housing 20 are installed in the respective insertion holes 31-1...

no. 3 example

[0137] Figure 11A It is a perspective view showing the plug terminal on the SPD plug side and the socket contact on the socket board side in the third embodiment of the present invention. Figure 11B yes means Figure 11A Cross-sectional view of the engaged state of the plug terminal and the socket contact.

[0138] in the Figure 11A with Figure 11B , for the same as shown in the second example Figure 10A with Figure 10B The same reference numerals are assigned to the same elements in the elements.

[0139] In the third embodiment, there are receptacle contacts 134A having a shape different from that of receptacle contact 134 on the receptacle board side in the second embodiment and plug terminals 149 on the plug terminal side as in the second embodiment. In the receptacle contact 134A of the third embodiment, instead of the cylindrical portion 134a of the second embodiment, there are two cylindrical portions 134a-1, 134a-2, and the two cylindrical portions 134a-1, ...

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PUM

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Abstract

The present invention provides a protection device which can facilitate insertion or pulling-out of a SPD plug relative to a socket and reduce load of the operator. The protection device (1) is composed of the SPD plug (40) and the socket (10). The SPD plug (40) and the socket (10) are electrically connected through inserting plug terminals (49-1,49-2) at the side of the SPD plug (40) into socket contactors (34-1,34-2) at the side of the socket (10). When the SPD plug (40) is inserted into the plug (10), the SPD plug (40) is fixed through jointing the jointing dent parts (47-1,47-2) at the side of the SPD plug (40) with the jointing projected parts (29-1,29-2) at the side of the socket (10). Therefore, through the stopping function caused by jointing, a stable mounting state of the SPD plug (40) can be kept.

Description

technical field [0001] The present invention relates to a protection device for a power supply such as a surge protector (Surge Protective Device, hereinafter referred to as "SPD"), which is used for lightning, lightning, etc. Protect power supply equipment from abnormal voltages and currents such as surges. Background technique [0002] Conventionally, for example, as described in the following Patent Document 1, a protection device for a power supply has: a socket board with terminals connected to a power line and a ground line, etc.; and an SPD plug accommodating a protection element. Disengage the socket board. The protection element housed in the SPD plug is composed of a varistor, and the varistor is used to flow abnormal voltages and abnormal currents such as lightning and surges entering from the power line to the ground line side. [0003] A plug terminal made of, for example, a sheet metal is protrudingly provided in the SPD plug. In the socket board, a socket c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/04H02H9/02H01R13/04H01R13/11H01R13/20H01R13/46H01R13/639H01R13/66
Inventor 东修司有坂章寺岛幸二
Owner SANKOSHA CORP
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