CN101226852A - Temperature-sensing switch for miniature thermal expansion fixed electrical contact - Google Patents
Temperature-sensing switch for miniature thermal expansion fixed electrical contact Download PDFInfo
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- CN101226852A CN101226852A CNA200810010320XA CN200810010320A CN101226852A CN 101226852 A CN101226852 A CN 101226852A CN A200810010320X A CNA200810010320X A CN A200810010320XA CN 200810010320 A CN200810010320 A CN 200810010320A CN 101226852 A CN101226852 A CN 101226852A
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- thermal expansion
- electrical contact
- lead wire
- fixed electrical
- temperature
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Abstract
The purpose of the invention is to provide a mini-sized heat expansion temperature sensitive switch of fixing electric contacts. The electric contacts in short circuit output switch alarming signals and signals with different resistance values according to heat expansion of conducting fluid. The mini-sized heat expansion temperature sensitive switch of fixing electric contacts is small in volume, fast in response speed, high in sensitivity and wide in detecting temperature scope. The purpose of the invention is to realize the scheme as follows that a mini-sized heat expansion temperature sensitive switch of fixing electric contacts is composed of a sealing housing, heat expansion conducting fluid (which is called conducting fluid as follows) and conducting lead wires, which is characterized in that when the heat expansion conducting fluid is heat-expanded, the volume of the heat expansion conducting fluid is enlarged to reach and surpass different contact positions of the conducting lead wire to conduct the two ends of the conducting lead wire, thereby signaling short circuit signals with different temperatures. Compared with the prior art, the mini-sized heat expansion temperature sensitive switch of fixing electric contacts has the advantages that the invention has small volume, can output the switch alarming signals with different action temperatures, and is sensitive and reliable in action temperature.
Description
Technical field
The present invention relates to fire alarm installation, a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact.
Background technology
Thermal expansion electric contact temp switch of the prior art in this electric contact temp switch, is made up of conducting liquid, shell, connection lead-in wire.When the conducting liquid expanded by heating in the electric contact temp switch acquired a certain degree, because the conductivity of conducting liquid conducts the connection lead-in wire in the electric contact temp switch, the electric contact temp switch can send the short-circuit alarming signal of temperature over-range.This volume of switch is big, and response speed is slow.Need a kind of small size, the temperature sensitive switch that reflection is sensitive high.
Summary of the invention
The object of the present invention is to provide a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact, can make the electric contact short circuit according to the thermal expansion of conducting liquid, the signal of output switch alarm signal or different resistances, a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact volume of the present invention is little, response speed is fast, highly sensitive, the detecting temperature scope is wide.
The objective of the invention is to realize: a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact by following technical proposals, form by seal casinghousing, thermal expansion conducting liquid (hereinafter referred to as conductor liquid), conductive lead wire, volume increases after it is characterized in that having thermal expansion conducting liquid expanded by heating, the conductive lead wire contact place that meets and exceeds diverse location makes the conducting of conductive lead wire two ends, sends the short-circuit signal of different temperatures.
Compared with the prior art, the advantage that has of a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact is: volume is little, can export different operating temperature switch alarm signals, operating temperature sensitivity, reliable.
Description of drawings
Fig. 1～Fig. 8 is the structural representation of a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact embodiment 1～embodiment 8.
Embodiment
A kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact, example 1 is seen Fig. 1, mainly is made up of conductive lead wire 1, conductive lead wire 2, seal casinghousing 3, conducting liquid 4, capillary 5.It is characterized in that: conductive lead wire 1 passes an end of seal casinghousing 3 and conducting liquid 4 conductings of holding together in the capillary 5, the other end that conductive lead wire 2 passes seal casinghousing 3 is arranged in the capillary 5, conducting liquid 4 has certain distance with conductive lead wire 2, the distance of conducting liquid 4 and conductive lead wire 2, the conducting temperature setpoint distance that can be according to the present invention a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact is set, when a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact of the present invention is heated, conducting liquid 4 expanded by heating, volume increases, when conducting liquid 4 touches conductive lead wire 2, make conductive lead wire 1 and conductive lead wire 2 conductings, can detect the short circuit signal of telecommunication.A kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact of the present invention has invertibity, when the temperature-sensing switch for miniature thermal expansion fixed electrical contact ambient temperature descends, the smaller volume of conducting liquid 4, conducting liquid 4 disconnects with conductive lead wire 2, and temperature-sensing switch for miniature thermal expansion fixed electrical contact automatically restores to the initial condition of often opening.
Embodiment 7 sees Fig. 7, a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact, it is characterized in that the end of conducting liquid 4 at capillary 5, article two, conductive lead wire 1 is at bullet tubule 5 other end same distance places, two walls that pass can 3 respectively extend in the capillary 5, and do not contact with conducting liquid 4, when a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact of the present invention is heated, conducting liquid 4 expanded by heating, volume increases, when conducting liquid 4 touches two conductive lead wires 1, make two conductive lead wire 1 conductings, can detect the short circuit signal of telecommunication.Also can distinguish again or while serial or parallel connection thermistor R for one or two of described conductive lead wire 1.
Embodiment 8 sees Fig. 8, a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact, it is characterized in that 7 described two conductive lead wires 2 of increase between the capillary 5 of conductive lead wire 1 and no conducting liquid 4 one ends again according to embodiment, article two, conductive lead wire 2 equates apart from the distance of two conductive lead wires 1, can detect the secondary different temperatures short circuit signal of telecommunication, one of described conductive lead wire 1 or two and or or two of conductive lead wire 2 also can distinguish again or while serial or parallel connection thermistor R.Also can increase many conductive lead wires again in the position that is different from conductive lead wire 1 and conductive lead wire 2.
Pressure in the foregoing description 1～example 8 described capillaries 5 can be normal pressure, also can be negative pressure.The encapsulation of conductive lead wire can be hot melt encapsulation or sealed binder encapsulation.Electric contact short circuit temperature can be 60 ℃～150 ℃ scope settings.
Material behavior explanation used in the present invention:
1, conductor liquid: material is organic substance conducting liquid, mercury or the liquid alloy with thermal expansion effects.
2, containment vessel: material is nonmetal or glass or plastics.The containment vessel outside diameter d is 1mm～4mm, and length is 5mm～26mm.
3, the hollow billet internal diameter can be uniformly, and is also heterogeneous.
4, thermistor R: can have NTC, CTR, ptc characteristics, also resistance R.
5, conductive lead wire: material is metal or the nonmetallic materials with conductive characteristic.
Claims (8)
1. a miniature thermal expansion fixed electrical contact temperature switch is made up of conductive lead wire (1), conductive lead wire (2), can (3), conducting liquid (4), capillary (5).It is characterized in that: conductive lead wire (1) passes an end of seal casinghousing (3) and interior conducting liquid (4) conducting of end capillary (5) together, the other end that conductive lead wire (2) passes seal casinghousing (3) is arranged in the capillary (5), conducting liquid (4) has certain distance with conductive lead wire (2), the distance of conducting liquid (4) and conductive lead wire (2), can be according to the electric contact conducting temperature of temperature-sensing switch for miniature thermal expansion fixed electrical contact setting of the present invention, setpoint distance.
2. a kind of miniature thermal expansion fixed electrical contact temperature switch according to claim 1, conductive lead wire can have different package position.
3. a kind of miniature thermal expansion fixed electrical contact temperature switch according to claim 1, its detected electric contact short-circuit signal can be 1, more than 2 and 2.
4. a kind of miniature thermal expansion fixed electrical contact temperature switch according to claim 1, series thermal-sensitive resistance R again.
5. a kind of miniature thermal expansion fixed electrical contact temperature switch according to claim 1 can thermistor R in parallel again.
6. a kind of miniature thermal expansion fixed electrical contact temperature switch according to claim 1, but thermistor R1 in parallel again after the series thermal-sensitive resistance R 2.
7. a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact according to claim 1, thermistor R, the R1 of serial or parallel connection, R2 can have NTC, CTR, ptc characteristics again, also resistance.
8. according to the described a kind of temperature-sensing switch for miniature thermal expansion fixed electrical contact of claim 4～7, parallel connection or series thermal-sensitive resistance R are before miniature thermal expansion electric contact temperature sensitive switch of the present invention short circuit or can detect continuous change in resistance after the short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810010320XA CN101226852A (en) | 2008-02-02 | 2008-02-02 | Temperature-sensing switch for miniature thermal expansion fixed electrical contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810010320XA CN101226852A (en) | 2008-02-02 | 2008-02-02 | Temperature-sensing switch for miniature thermal expansion fixed electrical contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101226852A true CN101226852A (en) | 2008-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA200810010320XA Pending CN101226852A (en) | 2008-02-02 | 2008-02-02 | Temperature-sensing switch for miniature thermal expansion fixed electrical contact |
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| CN (1) | CN101226852A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971978A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Thermal expansion liquid contact microswitch for heating through induction |
| CN106531551A (en) * | 2016-11-13 | 2017-03-22 | 吉林大学 | Temperature control switch with time delay function |
| CN106781189A (en) * | 2016-12-23 | 2017-05-31 | 重庆山楂树科技有限公司 | Fire-fighting warning device |
| CN107356794A (en) * | 2017-07-01 | 2017-11-17 | 合肥东玖电气有限公司 | A kind of fireproof alarming ammeter box |
| CN107863570A (en) * | 2017-10-11 | 2018-03-30 | 苏州绿标新能源科技有限公司 | A kind of lithium-ion-power cell bag |
| CN110726606A (en) * | 2019-09-17 | 2020-01-24 | 威尚生物技术（合肥）有限公司 | Kit |
| CN113193499A (en) * | 2021-04-24 | 2021-07-30 | 深圳市超维网络有限公司 | Network equipment capable of being comprehensively configured and monitored |
| CN114495413A (en) * | 2022-01-25 | 2022-05-13 | 北京盛嘉鑫泰安装有限公司 | Fire-fighting smoke detector |
| CN114510088A (en) * | 2022-02-18 | 2022-05-17 | 安徽庆宇光电科技有限公司 | Small-size constant temperature control system and online air detector thereof |
-
2008
- 2008-02-02 CN CNA200810010320XA patent/CN101226852A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971978B (en) * | 2014-04-12 | 2015-12-02 | 北京工业大学 | Utilize the thermally-expansible liquid contact micro switch of induction heating |
| CN103971978A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Thermal expansion liquid contact microswitch for heating through induction |
| CN106531551B (en) * | 2016-11-13 | 2018-12-18 | 吉林大学 | A kind of temperature detect switch (TDS) with time-lag action |
| CN106531551A (en) * | 2016-11-13 | 2017-03-22 | 吉林大学 | Temperature control switch with time delay function |
| CN106781189A (en) * | 2016-12-23 | 2017-05-31 | 重庆山楂树科技有限公司 | Fire-fighting warning device |
| CN107356794A (en) * | 2017-07-01 | 2017-11-17 | 合肥东玖电气有限公司 | A kind of fireproof alarming ammeter box |
| CN107863570A (en) * | 2017-10-11 | 2018-03-30 | 苏州绿标新能源科技有限公司 | A kind of lithium-ion-power cell bag |
| CN107863570B (en) * | 2017-10-11 | 2020-12-01 | 东方醒狮储能电池有限公司 | Lithium ion power battery pack |
| CN110726606A (en) * | 2019-09-17 | 2020-01-24 | 威尚生物技术（合肥）有限公司 | Kit |
| CN113193499A (en) * | 2021-04-24 | 2021-07-30 | 深圳市超维网络有限公司 | Network equipment capable of being comprehensively configured and monitored |
| CN114495413A (en) * | 2022-01-25 | 2022-05-13 | 北京盛嘉鑫泰安装有限公司 | Fire-fighting smoke detector |
| CN114495413B (en) * | 2022-01-25 | 2022-11-11 | 北京盛嘉鑫泰安装有限公司 | Fire-fighting smoke detector |
| CN114510088A (en) * | 2022-02-18 | 2022-05-17 | 安徽庆宇光电科技有限公司 | Small-size constant temperature control system and online air detector thereof |
| CN114510088B (en) * | 2022-02-18 | 2023-08-15 | 安徽庆宇光电科技有限公司 | Small-sized constant temperature control system and on-line air detector thereof |
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Open date: 20080723 |