CN201060710Y - Flame-proof and explosion-proof packaging structure for piezoresistor - Google Patents
Flame-proof and explosion-proof packaging structure for piezoresistor Download PDFInfo
- Publication number
- CN201060710Y CN201060710Y CNU2007201212830U CN200720121283U CN201060710Y CN 201060710 Y CN201060710 Y CN 201060710Y CN U2007201212830 U CNU2007201212830 U CN U2007201212830U CN 200720121283 U CN200720121283 U CN 200720121283U CN 201060710 Y CN201060710 Y CN 201060710Y
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- resistance
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Abstract
The utility model relates to a flame retardant and explosion-proof packaging structure for a piezoresistor, which comprises a piezoresistor 1 and a flame retardant explosion-proof housing 2 arranged outside the piezoresistor; wherein, the cross section of the housing 2 is a structure, in which the upper part is circular while the lower part is square, and the diameter of the circle is larger than the width of the square. The housing 2 comprises two semi-housings, namely 21 and 22, a locating hole 23 is arranged at the lower part of the semi-housing 22 and can locate the housing 2 together with an invisible locating rod of the other semi-housing. A buckle position 24 is arranged at the upper part of the semi-housing 21, and can buckle into a whole together with the semi-housing 22. By adopting the structure, the piezoresistor has the advantages that: the diameter of the upper circle enables the main body of the piezoresistor to be held into the housing, and the square at the lower part occupies a small area.
Description
Technical field
The utility model relates to the improvement of piezo-resistance, specifically a kind of piezo-resistance flame-proof explosion-proof encapsulating structure.
Background technology
Piezo-resistance is mainly used to lightning protection on the various electric equipment products, still, when running into the thunderbolt overtension, has surpassed the ability of bearing of piezo-resistance, or pressure-sensitive ageing failure, is easy to occur the problem of piezo-resistance blast on fire.Burn out circuit board thus, damage equipment is heavy then cause fire.For addressing this problem, Chinese patent literature discloses a kind of piezo-resistance flame-proof explosion-proof encapsulating structure, it is provided with the housing of a flame-proof explosion-proof outside existing piezo-resistance, this housing can stop flare to be gone out effectively, both to make be that piezo-resistance is on fire or exploded thereby reached, and can not cause that also other components and parts on the circuit board are on fire.But the housing of this flame-proof explosion-proof is generally a cube box body, and device has piezo-resistance in box body, and it occupies bigger on circuit board.Along with electronic product is more and more compact, the area of circuit board is more and more littler, and this just needs the position of the shared circuit board of piezo-resistance of equal-wattage the smaller the better.
Summary of the invention
The purpose of the present utility model is: provide a kind of under the situation of piezo-resistance power and constancy of volume to society, it occupies less board area.
Another purpose of the present utility model is to improve the flame-proof explosion-proof performance of existing flame-retardant and explosion-proof voltage dependent resistor.
Another purpose of the present utility model is to improve existing flame-retardant and explosion-proof voltage dependent resistor production efficiency.
The technical solution of the utility model is: design a kind of piezo-resistance flame-proof explosion-proof encapsulating structure, it comprises piezo-resistance and is arranged on the outer flame-proof explosion-proof housing of piezo-resistance, the longitudinal section of described housing is the circular upper part and square lower part structure, and goes up the width of diameter of a circle greater than the below; Described housing is made up of two and half shells, and make-up is integrated mutually, the piezo-resistance of this structure, and diameter of a circle can hold the main body of piezo-resistance down on it, and the square body of bottom has less footprints.
In order to improve the flame-proof explosion-proof performance of existing flame-retardant and explosion-proof voltage dependent resistor, can in the gap between described inner walls and the piezo-resistance outer wall, be filled with insulation and not fire powder or insulation fireproof fibre.Powder is not fired in described insulation can be quartz sand.Described insulation fireproof fibre can be glass fibre.
Another flame-proof explosion-proof performance mode that improves existing flame-retardant and explosion-proof voltage dependent resistor is that described housing is provided with exhaust outlet, is provided with the closeouts that can open automatically under gases at high pressure impact in described exhaust ports; Described closeouts is a masking foil.The really on fire or blast of piezo-resistance in shell causes that exhaust outlet can break a seal automatically when voltage rise was high in the housing, discharges the gases at high pressure in the shell, in order to avoid cause the blast of shell.
In order to improve existing flame-retardant and explosion-proof voltage dependent resistor production efficiency, can adopt bottom to be made as opening with described housing, then described opening is directly used the colloid sealing by fusing.
Described piezo-resistance also comprises the electric current fuse, and fuse places in the housing, and described electric current fuse is serially connected in wherein in one or two lead-in wires.
Described piezo-resistance also comprises Thermal Cutoffs, and fuse places in the housing, is affixed on the main body of piezo-resistance, and two pins of described Thermal Cutoffs extend outside the shell.
The utlity model has flame-proof explosion-proof, the little advantage of footprints on circuit board.
Description of drawings
Fig. 1 is a kind of embodiment decomposition texture of the utility model schematic diagram;
Fig. 2 is the structural representation after Fig. 1 makes up.
Embodiment
See also Fig. 1 and Fig. 2, it is a kind of piezo-resistance flame-proof explosion-proof encapsulating structure, it comprises piezo-resistance 1 and is arranged on the outer flame-proof explosion-proof housing 2 of piezo-resistance, described piezo-resistance 1 comprises main body 11 and two pins 12 that link to each other with main body the two poles of the earth, the longitudinal section of described housing 2 is the circular upper part and square lower part structure, and goes up the width of diameter of a circle greater than the below; Described housing 2 is made up of two and half shells 21,22, in half shell, 22 bottoms location hole 23 is arranged, and it can be located housing 2 with the backstay (invisible) of second half shell; On half shell, 21 tops button bit 24 is arranged, it can be integrated with half shell, 22 mutual make-ups, the piezo-resistance of this structure, and diameter of a circle can hold the main body of piezo-resistance 1 down on it, and the square body of bottom has less footprints.
Certainly, in order to improve the flame-proof explosion-proof performance of existing flame-retardant and explosion-proof voltage dependent resistor, can in the gap between described inner walls and the piezo-resistance outer wall, be filled with insulation and not fire powder or insulation fireproof fibre.Powder is not fired in described insulation can adopt analogs such as quartz sand.Described insulation fireproof fibre can be glass fibre etc.
Another mode that improves the flame-proof explosion-proof performance of existing flame-retardant and explosion-proof voltage dependent resistor can be that described housing 2 is provided with the exhaust outlet (not shown), steam vent can circular hole also can be a square hole, is provided with the closeouts that can open automatically under gases at high pressure impact in described exhaust ports; As masking foil.The really on fire or blast of piezo-resistance 1 in shell 2 causes that exhaust outlet can break a seal automatically when voltage rise was high in the housing 2, and promptly tinfoil paper is broken through, and discharges the gases at high pressure in the shell 2, in order to avoid cause the blast of shell 2.
In order to improve existing flame-retardant and explosion-proof voltage dependent resistor production efficiency, can adopt bottom to be made as opening, quartz sand or glass fibre are packed in the housing 2, then described opening directly be used the structure of colloid sealing by fusing described housing 2, like this, can improve the production efficiency of piezo-resistance widely.
In order to prevent piezo-resistance 1 blast, can on piezo-resistance 1, establish relevant fuse.A kind of mode is with electric current fuse of serial connection in of piezo-resistance 1 or two lead-in wires, and fuse places in the housing 2, and when the electric current that is born when piezo-resistance 1 surpassed its current limliting, then electric current blown fuse was to reach the purpose of protective circuit.
Another kind of mode is, in 11 1 sides of main body of described piezo-resistance 1, sticks a Thermal Cutoffs, and Thermal Cutoffs is placed in the housing 2, and two pins of described Thermal Cutoffs extend outside the shell 2.During use, two pins of Thermal Cutoffs are placed the circuit before two pins 12 of piezo-resistance 1, when the temperature of piezo-resistance 2 reaches set point, Thermal Cutoffs fusing, and reach the purpose of protective circuit.
Claims (9)
1. piezo-resistance flame-proof explosion-proof encapsulating structure, it comprises piezo-resistance and is arranged on the outer flame-proof explosion-proof housing of piezo-resistance, described piezo-resistance comprises main body and two pins that link to each other with main body the two poles of the earth, its characteristic in: the longitudinal section of described housing is the circular upper part and square lower part structure, and goes up the width of diameter of a circle greater than the below; Described housing is made up of two and half shells, and make-up is integrated mutually.
2. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 1 is characterized in that:
Be filled with insulation in the gap between described inner walls and the piezo-resistance outer wall and do not fire powder or insulation fireproof fibre.
3. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 2 is characterized in that:
It is quartz sand that powder is not fired in described insulation.
4. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 2 is characterized in that:
Described insulation fireproof fibre is a glass fibre.
5. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 1 is characterized in that:
Described housing is provided with exhaust outlet, is provided with the closeouts that can open automatically under gases at high pressure impact in described exhaust ports.
6. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 5 is characterized in that:
Described closeouts is a masking foil.
7. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 1 is characterized in that:
The bottom of described housing is an opening, described opening colloid sealing by fusing.
8. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 1 is characterized in that:
Described piezo-resistance also comprises the electric current fuse, and fuse places in the housing, and described electric current fuse is serially connected in wherein in one or two lead-in wires.
9. piezo-resistance flame-proof explosion-proof encapsulating structure according to claim 1 is characterized in that:
Described piezo-resistance also comprises Thermal Cutoffs, and fuse places in the housing, is affixed on the main body of piezo-resistance, and two pins of described Thermal Cutoffs extend outside the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201212830U CN201060710Y (en) | 2007-07-03 | 2007-07-03 | Flame-proof and explosion-proof packaging structure for piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201212830U CN201060710Y (en) | 2007-07-03 | 2007-07-03 | Flame-proof and explosion-proof packaging structure for piezoresistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060710Y true CN201060710Y (en) | 2008-05-14 |
Family
ID=39409194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201212830U Expired - Lifetime CN201060710Y (en) | 2007-07-03 | 2007-07-03 | Flame-proof and explosion-proof packaging structure for piezoresistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060710Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354592A (en) * | 2011-06-27 | 2012-02-15 | 广东风华高新科技股份有限公司 | Horizontal explosion-proof piezoresistor |
| CN102623117A (en) * | 2012-04-25 | 2012-08-01 | 广西新未来信息产业股份有限公司 | Simple flame-retardant explosion-proof piezoresistor |
| CN110690018A (en) * | 2019-11-08 | 2020-01-14 | 厦门赛尔特电子有限公司 | Explosion-proof flame-retardant piezoresistor and automatic production method thereof |
-
2007
- 2007-07-03 CN CNU2007201212830U patent/CN201060710Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354592A (en) * | 2011-06-27 | 2012-02-15 | 广东风华高新科技股份有限公司 | Horizontal explosion-proof piezoresistor |
| CN102623117A (en) * | 2012-04-25 | 2012-08-01 | 广西新未来信息产业股份有限公司 | Simple flame-retardant explosion-proof piezoresistor |
| CN110690018A (en) * | 2019-11-08 | 2020-01-14 | 厦门赛尔特电子有限公司 | Explosion-proof flame-retardant piezoresistor and automatic production method thereof |
| WO2021088392A1 (en) * | 2019-11-08 | 2021-05-14 | 厦门赛尔特电子有限公司 | Explosion-resistant flame-retardant varistor and automatic production method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN CITY CHENJU ELECTRONIC SCIENCE CO., LTD. Free format text: FORMER OWNER: XIAO XIAOJU Effective date: 20091016 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091016 Address after: Room 101, block A, Zhen Fu House, Shenzhen, Guangdong, Futian District Province, 518000 Patentee after: Shenzhen Chenju Electronic Technology Co., Ltd. Address before: Futian District Xiangmei road Shenzhen city of Guangdong province B County in room 1703, zip code: 518034 Patentee before: Xiao Xiaoju |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |