Protection element

A technology for protecting components and protecting objects, applied in the directions of electrical components, contacts, electrical switches, etc., can solve the problem of high manufacturing costs, and achieve the effects of less uneven movement, less environmental burden, and maintaining size.

Active Publication Date: 2013-11-06
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Furthermore, as in the invention disclosed in Patent Document 1, when two or more low-melting-point metal bodies or a low-melting-point metal body with slits are formed, the above-mentioned halogen-free flux etc. The problem caused by the low activity flux, and further, the formation of slits, etc., requires a special mold in the manufacture of the protective element, making the manufacturing cost higher

Method used

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Embodiment Construction

[0048] Hereinafter, for the first embodiment of the protection element of the present invention, according to Figure 1 to Figure 5 Be explained. The protective element 10 of this embodiment has a pair of electrodes 12 formed on both ends of the upper surface of an insulating base substrate 11 , and another pair of electrodes 21 is also provided on opposing edges perpendicular to the pair of electrodes 12 . Between the electrodes 21, a heating element 15 made of a resistor is connected. A conductive layer 17 connected to one of the electrodes 21 is laminated on the heating element 15 via the insulating layer 16 . On the conductor layer 17, the central part of the fusible conductor 13 of the fuse made of low-melting-point metal connected to the pair of electrodes 12 is connected. Furthermore, an insulating cover 14 made of an insulator is provided on the base substrate 11 so as to face the soluble conductor 13 .

[0049] As the material of the base substrate 11 , any materia...

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Abstract

The present invention provides a protection element capable of stably maintaining the flux on a soluble conductor at a predetermined position, so that the soluble conductor can be rapidly and accurately fused in case of abnormality. The protection element includes: a fusible conductor 13 arranged on an insulating base substrate 11, connected to a power supply line of the device to be protected, and fused by predetermined abnormal power; a flux 19 coated on the The surface of the fusible conductor 13 ; the insulating cover 14 , which covers the fusible conductor 13 and is mounted on the base substrate 11 . In addition, this protection element includes a convex portion 20 formed of a convex portion 20a formed on the inner surface of the insulating cover 14 facing the fusible conductor 13, and contacts the flux 19 to maintain the flux 19 at a predetermined level. position. The soluble conductor 13 is provided with a hole portion 13 a for holding the flux 19 .

Description

technical field [0001] The present invention relates to a protection element that cuts off the current by melting a fusible conductor due to the heat when excessive current or voltage is applied to electronic equipment or the like. Background technique [0002] Conventionally, as protection elements mounted on secondary battery devices and the like, not only protection elements having an overcurrent prevention function but also protection modules having an overvoltage prevention function have been used. This protection element is composed of the following form. A heating element and a fusible conductor composed of a low-melting-point metal body are laminated on the substrate, and the fusible conductor is fused by an overcurrent, and at the same time, it can also protect against the overvoltage when an overvoltage is generated. The heating element inside the protection element is energized so that the fusible conductor is fused by the heat of the heating element. The melting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H37/76
CPCH01H1/5805H01H37/761H01H2037/768H01H37/76Y10T29/49107
Inventor 木村裕二浅田隆广铃木和明
Owner DEXERIALS CORP
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