CN206947079U - A kind of high temperature resistant piezo-resistance - Google Patents
A kind of high temperature resistant piezo-resistance Download PDFInfo
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- CN206947079U CN206947079U CN201720667655.3U CN201720667655U CN206947079U CN 206947079 U CN206947079 U CN 206947079U CN 201720667655 U CN201720667655 U CN 201720667655U CN 206947079 U CN206947079 U CN 206947079U
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- resistance
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- high temperature
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- temperature resistant
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Abstract
The utility model discloses a kind of high temperature resistant piezo-resistance,Including resistance shell,Resistance shell is made of polytetrafluoroethylmaterial material,Resistance enclosure is provided with a chip varistor,Chip varistor lower end is connected with resistance pins,Buffering spongy layer is provided with resistance shell,Buffering spongy layer lower end is provided with silica gel bed course,Resistance pins pass through silica gel bed course,Resistance shell includes housing main body,Several pressure-adjusting ports are provided with housing main body,EP rubbers plug is provided with pressure-adjusting ports,Vent-hole is provided with EP rubbers plug,Several are provided with housing main body inwall and fixes projection,The shell of sub- quick resistance is made by using polytetrafluoroethylmaterial material,The heat-resisting ability of piezo-resistance is improved using polytetrafluoroethylmaterial material,Several openings are set on resistance shell,The rubber stopper of vent-hole is provided with opening,Effectively avoiding high temperature causes internal expansion,Balance external and internal pressure,It is worthy to be popularized.
Description
Technical field
Technical field of electronic components is the utility model is related to, specially a kind of high temperature resistant piezo-resistance.
Background technology
Resistance is a current limiting element, and after resistance is connect in circuit, the resistance of resistor is fixed usually two
Pin, it can limit the size of current by its institute's chord road.Piezo-resistance is a kind of votage limit type protection device, utilizes pressure-sensitive electricity
The nonlinear characteristic of resistance, when overvoltage appears in two interpolars of piezo-resistance, piezo-resistance can be by voltage clamping a to phase
To fixed magnitude of voltage, so as to realize the protection to late-class circuit.The major parameter of piezo-resistance has：Pressure sensitive voltage, through-flow appearance
Amount, junction capacity, response time etc..
Application No. 201320028726.7, a kind of entitled utility model patent of high temperature resistant piezo-resistance, including by
Chip varistor and outsourcing insulation, described outsourcing insulation are encapsulated in chip varistor outer surface, its making material of outsourcing insulation
Expect to be greater than being equal to -40 DEG C for phenolic resin, its minimum temperature in use, maximum operation (service) temperature is less than being equal to 105 DEG C, before improvement
Its highest use environment temperature is 85 DEG C, after epoxy resin enclosed material is become into phenolic resin, on the one hand alleviates chip varistor
Compression under normal temperature, simultaneously as the similar thermal expansion coefficient of chip varistor and outsourcing insulation, so as to improve its high temperature
Tolerance, the application of piezo-resistance is expanded, it is possessed stronger vitality.
But it is when in use, only by the change of sheathing material, to resistant to elevated temperatures limited in one's ability, its inside
The easy heat damage of chip varistor, and high temperature easily causes internal expansion, causes chip varistor to damage, therefore devise one kind
High temperature resistant piezo-resistance.
Utility model content
In order to overcome the shortcomings of prior art, the utility model provides a kind of high temperature resistant piezo-resistance, by using
The shell of sub- quick resistance is made in polytetrafluoroethylmaterial material, and the high temperature resistant energy of piezo-resistance is improved using polytetrafluoroethylmaterial material
Power, effectively prevent outside heat of high temperature from entering inside piezo-resistance, and chip varistor avoids under the protection of buffering spongy layer
Chip vibration damages, and sets several openings on resistance shell, the rubber stopper of vent-hole is provided with opening, is effectively kept away
Having exempted from high temperature causes internal expansion, balances external and internal pressure, is worthy to be popularized.
Technical scheme is used by the utility model solves its technical problem：A kind of high temperature resistant piezo-resistance, including electricity
Shell is hindered, the resistance shell is made of polytetrafluoroethylmaterial material, and the resistance enclosure is provided with a chip varistor, institute
State chip varistor lower end and be connected with resistance pins, buffering spongy layer is provided with the resistance shell, it is described to buffer under spongy layer
End is provided with silica gel bed course, and the resistance pins pass through silica gel bed course；
The resistance shell includes housing main body, and several pressure-adjusting ports are provided with the housing main body, described
EP rubbers plug is provided with pressure-adjusting ports, is provided with vent-hole in the EP rubbers plug, in the housing main body
Several are provided with wall and fixes projection.
As a kind of preferable technical scheme of the utility model, the buffering spongy layer is using foaming polyurethane materials system
Into.
As a kind of preferable technical scheme of the utility model, the chip varistor is provided at both ends with rubber muscle, institute
The rubber muscle other end is stated on resistance outer casing inner wall.
As a kind of preferable technical scheme of the utility model, one section of anti-folding protection is provided with the outside of the resistance pins
Set.
As a kind of preferable technical scheme of the utility model, anti-skidding groove is provided with the outside of the housing main body, it is described
Anti-skidding groove cross section is triangular structure.
As a kind of preferable technical scheme of the utility model, the fixed projection cross section is trapezium structure, described solid
Determine to be provided with fixed pin on projection.
Compared with prior art, the beneficial effects of the utility model are：It is made by using polytetrafluoroethylmaterial material sub- quick
The shell of resistance, the heat-resisting ability of piezo-resistance is improved using polytetrafluoroethylmaterial material, effectively prevents the high warm in outside
Amount enters inside piezo-resistance, and chip varistor avoids chip vibration from damaging under the protection of buffering spongy layer, on resistance shell
Several openings are set, the rubber stopper of vent-hole is provided with opening, effectively avoiding high temperature causes internal expansion, puts down
Weigh external and internal pressure, is worthy to be popularized.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model resistance shell mechanism schematic diagram.
In figure：1- resistance shells, 2- chip varistors, 3- resistance pins, 4- buffering spongy layers, 5- silica gel bed courses, 6- shells
Main body, 7- pressure-adjusting ports, 8- EP rubbers plugs, 9- vent-holes, 10- fix projection, 11- rubber muscle, the anti-foldings of 12-
Protective case, the anti-skidding grooves of 13-, 14- fixed pins.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment：
As shown in Figures 1 and 2, the utility model provides a kind of high temperature resistant piezo-resistance, it is characterised in that：Including resistance
Shell 1, the resistance shell 1 are made of polytetrafluoroethylmaterial material, and the resistance shell 1 is internally provided with a chip varistor 2,
The lower end of chip varistor 2 is connected with resistance pins 3, and buffering spongy layer 4, the buffering sea are provided with the resistance shell 1
The continuous lower end of layer 4 is provided with silica gel bed course 5, and the resistance pins 3 pass through silica gel bed course 5；
The resistance shell 1 includes housing main body 6, and several pressure-adjusting ports 7 are provided with the housing main body 6,
EP rubbers plug 8 is provided with the pressure-adjusting ports 7, vent-hole 9 is provided with the EP rubbers plug 8, it is described outer
Several are provided with the inwall of shell main body 6 and fixes projection 10；
Utility model works principle：When in use, pressure is protected by shell made of polytetrafluoroethylmaterial material
Quick chip 2, resistance shell 1 is drawn in the lower end of chip varistor 2 by resistance pins 3, and whole chip varistor 2 is all wrapped in buffering sea
In continuous layer 4, avoid resistance from rocking when in use and cause chip varistor 2 to rock damage, and the fixation set in housing main body 6
Projection 10 is for clamping internal damping spongy layer 4, and multiple pressure-adjusting ports 7 are opened up on housing main body 6, are put in opening
Enter resistant to elevated temperatures EP rubbers plug 8, set in EP rubbers plug 8 in outer gas flow vent-hole 9, avoid internal heated swollen
It is swollen to cause the extrusion damage of chip varistor 2.
In the utility model, what deserves to be explained is, as shown in figure 1, the buffering spongy layer 4 is using foaming polyurethane materials
It is made, there is good heat-resisting ability, avoids sponge structure inside heat damages.
In the utility model, what deserves to be explained is, as shown in figure 1, the chip varistor 2 is provided at both ends with rubber muscle
11, the other end of rubber muscle 11 is arranged on the inwall of resistance shell 1, increases the stability of chip varistor 2.
In the utility model, what deserves to be explained is, protected as shown in figure 1, the outside of the resistance pins 3 is provided with one section of anti-folding
Sheath 12, pin is avoided to be bent damage.
In the utility model, what deserves to be explained is, as shown in Fig. 2 the outside of the housing main body 6 is provided with anti-skidding groove
13, the anti-skidding cross section of groove 13 is triangular structure so that resistance is convenient to be dismantled, very convenient when manual teardown.
In the utility model, what deserves to be explained is, as shown in Fig. 2 the cross section of fixed projection 10 is trapezium structure, institute
State and be provided with fixed pin 14 on fixed projection 10, increase the stationarity to internal sponge.
The shell of sub- quick resistance is made by using polytetrafluoroethylmaterial material for the utility model, using polytetrafluoroethylmaterial material
The heat-resisting ability of piezo-resistance is improved, effectively prevents outside heat of high temperature from entering inside piezo-resistance, and chip varistor
Under the protection of buffering spongy layer, chip vibration damage is avoided, several openings are set on resistance shell, are provided with opening
The rubber stopper of vent-hole, effectively avoiding high temperature causes internal expansion, balances external and internal pressure, is worthy to be popularized.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (6)
- A kind of 1. high temperature resistant piezo-resistance, it is characterised in that：Including resistance shell（1）, the resistance shell（1）Using polytetrafluoro Vinyl material is made, the resistance shell（1）It is internally provided with a chip varistor（2）, the chip varistor（2）Lower end is connected with Resistance pins（3）, the resistance shell（1）Inside it is provided with buffering spongy layer（4）, the buffering spongy layer（4）Lower end is provided with Silica gel bed course（5）, the resistance pins（3）Through silica gel bed course（5）；The resistance shell（1）Including housing main body（6）, the housing main body（6）On be provided with several pressure-adjusting ports （7）, the pressure-adjusting ports（7）Inside it is provided with EP rubbers plug（8）, the EP rubbers plug（8）Inside it is provided with ventilative wear Hole（9）, the housing main body（6）Several are provided with inwall and fixes projection（10）.
- A kind of 2. high temperature resistant piezo-resistance according to claim 1, it is characterised in that：The buffering spongy layer（4）Using Foaming polyurethane materials are made.
- A kind of 3. high temperature resistant piezo-resistance according to claim 1, it is characterised in that：The chip varistor（2）Both ends are set It is equipped with rubber muscle（11）, the rubber muscle（11）The other end is arranged on resistance shell（1）On inwall.
- A kind of 4. high temperature resistant piezo-resistance according to claim 1, it is characterised in that：The resistance pins（3）Outside is set It is equipped with one section of anti-folding protective case（12）.
- A kind of 5. high temperature resistant piezo-resistance according to claim 1, it is characterised in that：The housing main body（6）Outside is set It is equipped with anti-skidding groove（13）, the anti-skidding groove（13）Cross section is triangular structure.
- A kind of 6. high temperature resistant piezo-resistance according to claim 1, it is characterised in that：The fixed projection（10）Cross section For trapezium structure, the fixed projection（10）On be provided with fixed pin（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667655.3U CN206947079U (en) | 2017-06-09 | 2017-06-09 | A kind of high temperature resistant piezo-resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667655.3U CN206947079U (en) | 2017-06-09 | 2017-06-09 | A kind of high temperature resistant piezo-resistance |
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| Publication Number | Publication Date |
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| CN206947079U true CN206947079U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720667655.3U Active CN206947079U (en) | 2017-06-09 | 2017-06-09 | A kind of high temperature resistant piezo-resistance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003767A (en) * | 2018-07-18 | 2018-12-14 | 昆山万盛电子有限公司 | A kind of piezoresistor and preparation method thereof of accumbency installation |
| JP2021057475A (en) * | 2019-09-30 | 2021-04-08 | 株式会社オートネットワーク技術研究所 | Reactor |
-
2017
- 2017-06-09 CN CN201720667655.3U patent/CN206947079U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003767A (en) * | 2018-07-18 | 2018-12-14 | 昆山万盛电子有限公司 | A kind of piezoresistor and preparation method thereof of accumbency installation |
| CN109003767B (en) * | 2018-07-18 | 2023-11-28 | 昆山万盛电子有限公司 | Piezoresistor horizontally mounted and preparation method thereof |
| JP2021057475A (en) * | 2019-09-30 | 2021-04-08 | 株式会社オートネットワーク技術研究所 | Reactor |
| JP7320181B2 (en) | 2019-09-30 | 2023-08-03 | 株式会社オートネットワーク技術研究所 | Reactor |
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| CP03 | Change of name, title or address |
Address after: 523000 Room 201, building 1, NO.213, Dalingshan mountain Factory Road, Dalingshan Town, Dongguan City, Guangdong Province Patentee after: Guangdong to sensitive Electronics Co., Ltd. Address before: 523000 Guangdong Province, Dongguan City Dalingshan Rhombomys village xinyongsheng Industrial Park A building two floor Patentee before: Dongguan Hua Zhixuan Electronics Co. Ltd. |