CN108074689B - A kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment - Google Patents
A kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment Download PDFInfo
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- CN108074689B CN108074689B CN201611024734.9A CN201611024734A CN108074689B CN 108074689 B CN108074689 B CN 108074689B CN 201611024734 A CN201611024734 A CN 201611024734A CN 108074689 B CN108074689 B CN 108074689B
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- explosion
- colloid
- gravel
- preparation
- protection equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
- H01C1/024—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being hermetically sealed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
The present invention provides a kind of preparation methods of encapsulating seal type piezoresistor explosion-protection equipment, it includes following preparation step: 1) preparing a varistor and an explosion-proof casing, hatch frame is set in at least one side of explosion-proof casing, varistor includes chip portion, the first lead portion and second pin portion；2) explosion-proof casing is placed in chip portion, and the first lead portion and second pin portion is extended outwardly from side；3) it is packed into gravel into explosion-proof casing, and at least gravel is encased in and buried chip portion；4) colloid is poured into explosion-proof casing, colloid part is gradually penetrated into gravel, and the top that colloid is partially left at gravel solidifies to form colloid layer, and colloid layer seals the hatch frame of side, and the first lead portion and second pin portion pass through colloid layer and extend outwardly.Compared to the prior art, production efficiency can be improved in the present invention, and further enhances the explosion-proof effect of product, preferably other electronic components on protection circuit plate.
Description
Technical field
The present invention relates to a kind of piezoresistor explosion-protection equipment preparation processes, in particular to a kind of encapsulating seal type
The preparation method of piezoresistor explosion-protection equipment.
Background technique
Piezoresistor is widely used in household electrical appliance and other electronic products, plays overvoltage protection, lightning protection, inhibition
The effects of surge current, absorbing peak pulse, clipping, high pressure arc extinguishing, de-noising, protection semiconductor components and devices.
In order to form the explosive-proof protector effect to piezoresistor, would generally be arranged outside current piezoresistor explosion-proof
Shell.Since explosion-proof shell is usually all made of plastics, has in explosion-proof performance and have a certain disadvantage, and in varistor
Explosion time occurs for device, and explosion-proof shell can also generate many fragments, generates security risk to surrounding enviroment.Simultaneously as explosion-proof shell
Interior usually also to need to pour into gravel, and gravel is unable to fully tamp after pouring into, internal gravel is just after explosion-proof shell is mobile when use
Certain noise can be generated, use feeling is influenced.
Summary of the invention
In consideration of it, the present invention provides a kind of preparation methods of encapsulating seal type piezoresistor explosion-protection equipment, it is intended to solve
Certainly piezoresistor explosion-proof shell explosion-proof performance is low in the prior art, is also easy to produce fragment after explosion and is also easy to produce the technology of noise and asks
Topic.
The present invention provides a kind of preparation methods of encapsulating seal type piezoresistor explosion-protection equipment comprising following preparation
Step:
1) prepare a varistor and an explosion-proof casing, hatch frame is set in at least one side of explosion-proof casing, it is pressure-sensitive
Resistance includes chip portion, the first lead portion and second pin portion；
2) explosion-proof casing is placed in chip portion, and the first lead portion and second pin portion is extended outwardly from side；
3) it is packed into gravel into explosion-proof casing, and at least gravel is encased in and buried chip portion；
4) colloid is poured into explosion-proof casing, colloid part is gradually penetrated into gravel, and colloid is partially left at the top of gravel
Solidification forms colloid layer, and colloid layer seals the hatch frame of side, the first lead portion and second pin portion pass through colloid layer and to
Outer extension.
Further, the volume of above-mentioned gravel is at least 2 times of the volume of colloid.
Further, above-mentioned gravel is quartz sand.
Further, above-mentioned colloid is casting glue.
Further, above-mentioned explosion-proof casing is polygonal body.
Further, above-mentioned explosion-proof casing is cuboid.
Further, said chip portion is in round pie.
Further, above-mentioned first lead portion and second pin portion are arranged in parallel.
Further, overlapping layer is formed after above-mentioned colloid part is gradually penetrated into gravel.
Further, in above-mentioned overlapping layer, colloid forms colloid perisphere in gravel periphery, the colloid in colloid perisphere
Form the oblique slope into gravel.
The preparation method of encapsulating seal type piezoresistor explosion-protection equipment provided by the present invention, by improving explosion-protection equipment
Preparation method, i.e., stone material layer is set in explosion-proof casing, and setting seals the glue-line of opening on stone material layer, replaces original lid
The mode of son sealing also enhances the intensity of explosion-proof shell, is encountering extraneous heavy current impact while greatly increasing production efficiency
When, or when varistor meets with lightning stroke or surge voltage fails, varistor explosion, while generating high temperature；At this point, because
Varistor is cased with explosion-proof shell, thus play prevent fragment splash purpose, preferably on protection circuit plate other elements not by
Damage；Meanwhile explosion-proof shell is a closed space, can completely cut off air, and plastic housing is fire-retardant, it will not be on fire high temperature
Burning.
Therefore, compared to the prior art, production efficiency can be improved in the present invention, and further enhances the explosion-proof effect of product
Fruit, preferably other electronic components on protection circuit plate.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is involved by a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment provided in an embodiment of the present invention
And explosion-protection equipment structure sectional view；
Fig. 2 is involved by a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment provided in an embodiment of the present invention
And explosion-protection equipment perspective view；
Fig. 3 is involved by a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment provided in an embodiment of the present invention
And overlapping layer structural schematic diagram.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Referring to Fig. 1 to Fig. 2, it is explosion-proof that a kind of encapsulating seal type piezoresistor provided in an embodiment of the present invention is shown in figure
The preparation method of device.The preparation method of the encapsulating seal type piezoresistor explosion-protection equipment includes following preparation step:
S1: preparing a varistor 1 and an explosion-proof casing 2, the one side 24 of explosion-proof casing 2 be arranged hatch frame (
Opening can be set on multiple sides), varistor 1 includes chip portion 21, the first lead portion 22 and second pin portion 23；
S2: explosion-proof casing 2 is placed in chip portion 21, and makes the first lead portion 22 and second pin portion 23 from side 24
Extend outwardly；
S3: being packed into gravel into explosion-proof casing 2, and gravel be encased in and buried chip portion 21, it is also possible that chip portion
Expose gravel in 21 parts；
S4: pouring into colloid into explosion-proof casing 2, and colloid part is gradually penetrated into gravel, and colloid is partially left at the top of gravel
Portion solidifies to form colloid layer 3, and colloid layer 3 seals the hatch frame of side 24, and the first lead portion 22 and second pin portion 23 pass through
Colloid layer 3 simultaneously extends outwardly.
Wherein, above-mentioned gravel is specifically as follows quartz sand layer or other similar stone material layer.Above-mentioned colloid is specific
It can be sealing pouring adhesive layer or other similar glue-line.
The preparation method of encapsulating seal type piezoresistor explosion-protection equipment provided by the present embodiment, by improving explosion-proof dress
Stone material layer is arranged in the preparation method set that is, in explosion-proof casing, and setting seals the glue-line of opening on stone material layer, replaces original
The mode of lid seal also enhances the intensity of explosion-proof shell while greatly increasing production efficiency, is encountering extraneous high current punching
When hitting, or when varistor meets with lightning stroke or surge voltage fails, varistor explosion, while generating high temperature；At this point, because
It is cased with explosion-proof shell for varistor, to play the purpose for preventing fragment from splashing, other elements are not preferably on protection circuit plate
It is damaged；Meanwhile explosion-proof shell is a closed space, can completely cut off air, and plastic housing is fire-retardant, will not be risen high temperature
Fire burning.Therefore, compared to the prior art, production efficiency can be improved in the present embodiment, and further enhances the explosion-proof of product
Effect, preferably other electronic components on protection circuit plate.
In order to further reduce noise brought by gravel, the volume of gravel is 2 times of the volume of colloid, or
3 times or more, through calculating, by volume be arranged 2 times it is poor after, noise can reduce by 8 decibels compared to equal or less than 2 times when,
Thus prove that noise can be significantly reduced.
Referring to Fig. 1, in order to adapt to the needs used, and make overall structure more firm, explosion-proof casing 2 is polygon
Body is specifically as follows cuboid.Chip portion 21 specifically can be in round pie.
Referring to Fig. 1, the first lead portion 22 and second pin portion 23 are arranged in parallel, so that overall structure is more firm.
Referring to Fig. 1, colloid part forms overlapping layer 31 after gradually penetrating into gravel, so that integral strength is higher, and shape
The firm supporting role of pairs of pin.
Referring to Fig. 1 and Fig. 3, in overlapping layer 31, colloid forms colloid perisphere 32 in gravel periphery, in colloid perisphere 32
Colloid form the oblique slope 33 into gravel, perisphere integrated explosion proof system shell formed here is more fixedly supported work
With, while when gravel movement, the inner wall of gravel impact explosion-proof shell can be prevented by gravel to the glue-line or bottom water conservancy diversion at top,
The effect of noise reduction is consequently formed, and slope can form the delta-shaped region between explosion-proof shell inner wall, so that gravel can
To precipitate the angled bottom with triangle, the movement of gravel is prevented, the effect of noise reduction is consequently formed.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment, which is characterized in that including following preparation step:
1) prepare a varistor (1) and an explosion-proof casing (2), be arranged in at least one side (24) of the explosion-proof casing (2)
Hatch frame, the varistor (1) include chip portion (21), the first lead portion (22) and second pin portion (23)；
2) explosion-proof casing (2) is placed on the chip portion (21), and makes first lead portion (22) and described
Two lead portion (23) extend outwardly from the side (24)；
3) it is packed into gravel in Xiang Suoshu explosion-proof casing (2), and at least the gravel is encased in and buried the chip portion (21)；
4) colloid is poured into Xiang Suoshu explosion-proof casing (2), the colloid part is gradually penetrated into the gravel, the colloid part
The top for staying in the gravel solidifies to be formed colloid layer (3), and the colloid layer (3) seals the hatch frame of the side (24),
First lead portion (22) and the second pin portion (23) pass through the colloid layer (3) and extend outwardly, the colloid part
Divide after gradually penetrating into the gravel and form overlapping layer (31), in the overlapping layer (31), the colloid is in the gravel periphery
It is formed colloid perisphere (32), the colloid in the colloid perisphere (32) forms the oblique slope into the gravel
(33)。
2. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment according to claim 1, feature exist
In the volume of the gravel is at least 2 times of the volume of the colloid.
3. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment according to claim 1 or 2, feature
It is, the gravel is quartz sand.
4. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment according to claim 1 or 2, feature
It is, the colloid is casting glue.
5. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment according to claim 1, feature exist
In the explosion-proof casing (2) is polygonal body.
6. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment according to claim 5, feature exist
In the explosion-proof casing (2) is cuboid.
7. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment according to claim 1, feature exist
In the chip portion (21) is in round pie.
8. a kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment according to claim 1, feature exist
In first lead portion (22) and the second pin portion (23) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024734.9A CN108074689B (en) | 2016-11-17 | 2016-11-17 | A kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024734.9A CN108074689B (en) | 2016-11-17 | 2016-11-17 | A kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108074689A CN108074689A (en) | 2018-05-25 |
| CN108074689B true CN108074689B (en) | 2019-06-04 |
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ID=62160806
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611024734.9A Active CN108074689B (en) | 2016-11-17 | 2016-11-17 | A kind of preparation method of encapsulating seal type piezoresistor explosion-protection equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067314A (en) * | 2009-04-14 | 2011-05-18 | 松下电器产业株式会社 | Resistance-change element and method of producing same |
| CN203165601U (en) * | 2013-04-01 | 2013-08-28 | 舜全电气器材(东莞)有限公司 | Flame-proof and explosion-proof piezoresistor |
| CN203218048U (en) * | 2013-03-18 | 2013-09-25 | 兴勤电子工业股份有限公司 | Explosion-proof pressure sensitive resistor |
| CN105788782A (en) * | 2016-05-05 | 2016-07-20 | 广东百圳君耀电子有限公司 | Anti-explosion long-service-life piezoresistor |
-
2016
- 2016-11-17 CN CN201611024734.9A patent/CN108074689B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067314A (en) * | 2009-04-14 | 2011-05-18 | 松下电器产业株式会社 | Resistance-change element and method of producing same |
| CN203218048U (en) * | 2013-03-18 | 2013-09-25 | 兴勤电子工业股份有限公司 | Explosion-proof pressure sensitive resistor |
| CN203165601U (en) * | 2013-04-01 | 2013-08-28 | 舜全电气器材(东莞)有限公司 | Flame-proof and explosion-proof piezoresistor |
| CN105788782A (en) * | 2016-05-05 | 2016-07-20 | 广东百圳君耀电子有限公司 | Anti-explosion long-service-life piezoresistor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108074689A (en) | 2018-05-25 |
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