Miniature anti-explosion protection element and manufacturing method thereof

A protection component and miniature technology, which is applied in electrical components, fuse manufacturing, emergency protection devices, etc., can solve the problems of low breaking capacity and poor anti-surge capacity, etc., to improve breaking capacity, improve anti-surge capacity, and improve breaking Characteristics and Effects of Surge Resistance

Active Publication Date: 2015-01-28
NANJING SART SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor anti-surge capability and low breaking capability of existing technical pr

Method used

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  • Miniature anti-explosion protection element and manufacturing method thereof
  • Miniature anti-explosion protection element and manufacturing method thereof
  • Miniature anti-explosion protection element and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] Example 1

[0050] Such as figure 1 with figure 2 As shown, an explosion-proof miniature protection element of the present invention includes an insulating housing 1, a metal melt 2, an end electrode 3, a solder 4, a gap 5, an arc extinguishing material 6 and a character mark 7. In this example, the size of the explosion-proof miniature protection element is 6.1mm*2.5mm*2.5mm (length*width*height). An end electrode 3 is fixed at both ends of the insulating housing 1 respectively, and the fixing method is that the end electrode 3 is wrapped on the end of the insulating housing 1. The molten metal 2 is suspended in the interior of the insulating housing 1, preferably at the center of the insulating housing 1. The two ends of the molten metal 2 are respectively fixed to the end electrodes 3 on both ends of the insulating housing 1 by solder 4 , And form an electrical connection with the end electrode 3. The arc extinguishing material 6 is fully filled between the insulatin...

Example Embodiment

[0052] Example 2

[0053] Such as image 3 As shown, for an explosion-proof miniature protection element of the present invention, the difference between embodiment 2 and embodiment 1 is only: the metal melt 2 is a metal wire, and the metal melt 2 is first wound on the glass fiber line 8 to form a winding In a wire structure, the winding wire is suspended through the inside of the insulating housing 1, and the two ends of the winding wire are respectively fixed on the two end electrodes 3 provided on the insulating housing 1 by solder 4 to form an electrical connection. The metal melt 2 may also be a metal sheet. The same parts of Embodiment 2 and Embodiment 1 will not be described in detail here.

Example Embodiment

[0054] Example 3

[0055] Such as Figure 4 As shown, for an explosion-proof miniature protection element of the present invention, the difference between embodiment 3 and embodiment 1 is only that the two ends of the same side of the insulating housing 1 are provided with a notch 5 respectively, and the size of the notch 5 is 1.8. mm*0.3mm (length*width), that is, the length of the gap 5 accounts for 29.5% of the length of the insulating housing 1, the width of the gap 5 accounts for 12% of the width of the side where the gap 5 is located, and the length of the exposed end electrode 3 is 0.4mm, That is, it occupies 6.6% of the length of the insulating housing 1. The same parts of Embodiment 3 and Embodiment 1 will not be described in detail here.

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Abstract

The invention discloses a miniature anti-explosion protection element and a manufacturing method thereof. The element comprises an insulation housing, a metal melt, end electrodes and arc extinction materials, wherein end electrodes wrap two ends of the insulation housing, the metal melt is suspended inside the insulation housing, two ends of the metal melt are respectively and electrically connected with the two end electrodes wrapping the insulation housing, the arc extinction materials are arranged between the insulation housing and the metal melt, at least one of the ends of the insulation housing is communicated with gaps exposed out of the end electrodes, in the internal space and external space of the insulation housing, and the arc extinction materials contain fumed silica and silica gel. The two ends of the element are full of the arc extinction materials, filling time is short, the fumed silica having the powerful adsorption capacity plays a main role on disjunction and arc extinction, the fumed silica is equivalent to air in heat conductivity, larger-wire-diameter meta melts can be adopted under the condition of the same disjunction capacity requirement, and surge resistant capacity of products is improved.

Description

technical field [0001] The invention relates to a miniature protection element, in particular to an overcurrent protection element with high breaking capacity, strong anti-surge capability and small volume, and a manufacturing method of the protection element, belonging to the field of relay protection. Background technique [0002] Under the great pressure of global health, environmental protection and energy crisis, every country is actively promoting and using energy-saving lighting products. LED is a new generation of light source in the future. Because it meets the social development needs of low-carbon, green and environmental protection, It has become the biggest trend in lighting development today. With the expansion of the LED general lighting market and the LED street lamp market, the requirements for high surge carrying capacity and high breaking capacity of protective components used for overcurrent protection are becoming more and more stringent. At present, th...

Claims

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Application Information

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IPC IPC(8): H01H85/38H01H85/175H01H69/02
CPCH01H69/02H01H85/175H01H85/38H01H2085/388H01H85/43H01H85/0082
Inventor 南式荣杨漫雪刘明龙
Owner NANJING SART SCI & TECH DEV
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