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Explosion-proof miniature protection element and its manufacturing method

A protection component and miniature technology, which is applied in the direction of electrical components, fuse manufacturing, emergency protection devices, etc., can solve the problems of low breaking capacity and poor anti-surge ability, so as to improve the breaking capacity, improve the anti-surge ability, and improve the breaking capacity. characteristics and effects of surge immunity

Active Publication Date: 2016-08-31
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 products, the present invention provides an explosion-proof miniature surface-mounted miniature protection element

Method used

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  • Explosion-proof miniature protection element and its manufacturing method
  • Explosion-proof miniature protection element and its manufacturing method
  • Explosion-proof miniature protection element and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as figure 1 and figure 2 As shown, an explosion-proof miniature protection element of the present invention includes an insulating shell 1 , a metal melt 2 , an end electrode 3 , solder 4 , a notch 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). Two ends of the insulating case 1 are respectively fixed with an end electrode 3 , and the fixing method is that the end electrode 3 is wrapped on the end of the insulating case 1 . The metal melt 2 is suspended in the interior of the insulating shell 1, preferably at the center of the insulating shell 1, and the two ends of the metal melt 2 are respectively fixed on the end electrodes 3 on both ends of the insulating shell 1 by solder 4 , and form an electrical connection with the terminal electrode 3 . The arc extinguishing material 6 is fully filled between the insulating casing 1 and...

Embodiment 2

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

Embodiment 3

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

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Abstract

The invention discloses an explosion-proof miniature protection element and a manufacturing method thereof. The element includes an insulating shell, a metal melt, an end electrode, and an arc-extinguishing material. The end electrodes are wrapped at both ends of the insulating shell, and the metal melt is suspended in the air. Inside the insulating shell, the two ends of the metal melt are respectively electrically connected to the electrodes at both ends wrapped on the insulating shell, and the arc extinguishing material is arranged between the insulating shell and the metal melt, and the ends of the insulating shell are provided with at least A gap exposed to the terminal electrode communicates the inner space and the outer space of the insulating shell, and the arc-extinguishing material includes fumed silicon dioxide and silica gel. The arc-extinguishing material at both ends of the element of the present invention is fully filled and the filling time is short. The strong adsorption capacity of gas-phase silica plays a major role in breaking and extinguishing the arc. The thermal conductivity of gas-phase silica is equivalent to that of air. Under the same breaking capacity requirements Metal melt with thicker wire diameter can be used to improve the anti-surge capability of the product.

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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Patent Type & Authority Patents(China)
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