Preparation method of potting sealed piezoresistor explosion-proof device
A varistor, explosion-proof device technology, applied in varistor, resistor, resistor parts and other directions, can solve the problems of low explosion-proof performance, easy to generate noise, easy to generate debris, etc., to increase production efficiency, enhance Strength, the effect of improving production efficiency
Active Publication Date: 2018-05-25
KUSN WANSHENG ELECTRONICS
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of this, the present invention provides a preparation method of a glue-filled and sealed piezoresistor explosion-proof device, aiming to solve the problems of low explosion-proof performance of piezoresistor explosion-proof shells in the prior art, and easy generation of fragments and noise after explosion. technical problem
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0026] see Figure 1 to Figure 2 , the figure shows a preparation method of an explosion-proof device for potting and sealing piezoresistors provided by an embodiment of the present invention. The preparation method of the glue filling and sealing piezoresistor explosion-proof device comprises the following preparation steps:
[0027] S1: Prepare a piezoresistor 1 and an explosion-proof casing 2, and set an opening structure on on...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a preparation method of a potting sealed piezoresistor explosion-proof device. The preparation method comprises the following preparation steps: firstly, preparing a piezoresistor and an explosion-proof casing, wherein an open structure is arranged on at least one side face of the explosion-proof casing; the piezoresistor comprises a chip part, a first pin part and a secondpin part; secondly, sleeving the explosion-proof casing on the chip part and enabling the first pin part and the second pin part to extend outwards from the side faces; thirdly, filling the explosion-proof casing with sandy gravels and at least filling the sand gravels to submerge the chip part; fourthly, pouring a colloid into the explosion-proof casing, enabling a colloid part to gradually infiltrate into the sand gravels and stay at the tops of the sand gravels for solidifying to form a colloid layer; sealing the open structure on the side face by the colloid layer, and enabling the first pin part and the second pin part to penetrate through the colloid layer and extend outwards. Compared with the prior art, the preparation method provided by the invention has the advantages that the production efficiency can be improved, an explosion-proof effect of a product is further enhanced and other electronic elements on a circular board are better protected.
Description
technical field [0001] The invention relates to a preparation process for a piezoresistor explosion-proof device, in particular to a preparation method for a glue-filling and sealing type piezoresistor explosion-proof device. Background technique [0002] Varistors are widely used in household appliances and other electronic products for overvoltage protection, lightning protection, surge current suppression, peak pulse absorption, amplitude limiting, high voltage arc extinguishing, noise elimination, and protection of semiconductor components. [0003] In order to form an explosion-proof protection effect on the piezoresistor, an explosion-proof casing is usually arranged outside the current piezoresistor. Since the explosion-proof casing is usually made of plastic, it has a certain disadvantage in explosion-proof performance, and when the varistor explodes, the explosion-proof casing will also produce a lot of fragments, which will pose a safety hazard to the surrounding e...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01C1/024H01C7/10
CPCH01C1/024H01C7/10
Inventor 吴伟程传波胡鹏杨必祥石怡房双杰
Owner KUSN WANSHENG ELECTRONICS