CN2812146Y - Switching-value linear temperature-sensing detector with meltable insulation coating - Google Patents
Switching-value linear temperature-sensing detector with meltable insulation coating Download PDFInfo
- Publication number
- CN2812146Y CN2812146Y CN 200520113372 CN200520113372U CN2812146Y CN 2812146 Y CN2812146 Y CN 2812146Y CN 200520113372 CN200520113372 CN 200520113372 CN 200520113372 U CN200520113372 U CN 200520113372U CN 2812146 Y CN2812146 Y CN 2812146Y
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- Prior art keywords
- conductor
- insulating coating
- meltable
- temperature
- detector
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- Expired - Lifetime
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- 238000000576 coating method Methods 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 43
- 238000009413 insulation Methods 0.000 title abstract 5
- 239000004020 conductor Substances 0.000 claims abstract description 73
- 239000004033 plastic Substances 0.000 claims abstract description 30
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims description 15
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a switching-value linear temperature-sensing detector with a meltable insulation coating, which is composed of an elastic conductor, a conductor, meltable plastic layers, a resistance signal measuring device, and an outer jacket, wherein the meltable insulation coating is covered on the outside of the elastic conductor; the meltable plastic layer is covered on the outside of the meltable insulation coating to form a detecting cable; the meltable plastic layer is covered on the outside of the conductor to form another detecting cable; the two detecting cables are twisted together; the outer jacket is arranged on the outsides of the detecting cables; the signal input terminal of the resistance signal measuring device is electrically connected with the conductor inside the detecting cable; the melting temperature of the meltable insulation coating ranges from 40 DEG C. to 120 DEG C. When the utility model is exposed under any temperature under eighty five percent of the rated alarm temperature in a long term, the detector can not generate false alarm easily and the reliability and the sensitivity of the detector can be improved.
Description
Technical field
The utility model relates to a kind of on-off value linear temperature-sensitive detector that has fusible insulating coating, this detector is to have fusible insulating coating with increase one deck on the basis of traditional on-off value linear temperature-sensitive detector structure, solved the false alarm that the long-time high temperature of on-off value linear temperature-sensitive detector (i.e. 85% left and right sides amount alarm temperature) exposes, and the reliability and the sensitivity that have improved on-off value linear temperature-sensitive detector.
Background technology
On-off value linear temperature-sensitive detector of the prior art is a kind of broad-spectrum fire detector, accompanying drawing 1 and accompanying drawing 2 are traditional on-off value linear temperature-sensitive detector structural representations, referring to Fig. 1 and Fig. 2, in this detector, an oversheath 1 is arranged, there are two (or three in this oversheath, four) elastic conductor 3 twists together, the conductor outside coats with the plastic layer 2 (being generally high pressure P E material) of certain melting point, when detector is heated, after temperature acquires a certain degree, the softening or thawing of plastics, under the elastic force effect of elastic conductor 3, be in contact with one another between the conductor, promptly be short-circuited, thereby reach the purpose of fire alarm.The advantage of this detection is: after the temperature of any reaches the alarm temperature of detector arbitrarily on the detector; but detector is short-circuit alarming all; detector alarm sensitivity is irrelevant with the length of being heated, and therefore the detection sensitivity of the fire that object of protection local overheating or external burning things which may cause a fire disaster are caused is very high.Its shortcoming is: when the hot environment of the specified alarm temperature of detector long term exposure in about 85%, plastic layer 2 can be softening at leisure or be melted, and under the elastic force effect of elastic conductor 3, thereby can be short-circuited false alarm.For this reason, need to propose the higher on-off value linear temperature-sensitive detector of a kind of reliability.
Summary of the invention
The purpose of this utility model is to provide a kind of on-off value linear temperature-sensitive detector that has fusible insulating coating, this detector is to have fusible insulating coating with increase one deck on the basis of traditional on-off value linear temperature-sensitive detector structure, like this, even the arbitrary temperature of this detector long term exposure below 85% amount alarm temperature, detector all is difficult for producing false alarm, the reliability and the sensitivity that can improve detector.
The purpose of this utility model is realized by following technical proposals: a kind of on-off value linear temperature-sensitive detector that has fusible insulating coating, by an elastic conductor, a conductor, the meltable plastic layer, the resistance signal measurement mechanism, oversheath is formed, described elastic conductor coats the fusible insulating coating of one deck outward, this is fusible, and the insulating coating outside coats exploration cable of meltable plastic layer formation, described conductor coats one deck meltable plastic layer outward and constitutes another root exploration cable, two described exploration cables twist together, described oversheath is arranged on described exploration cable outside, the signal input part of described resistance signal measurement mechanism is electrically connected with conductor in the described exploration cable, and the softening temperature zone of described fusible insulating coating is 40 ℃～120 ℃.
The purpose of this utility model can also be realized by following technical proposals: a kind of on-off value linear temperature-sensitive detector that has fusible insulating coating, by an elastic conductor, a conductor, the meltable plastic layer, the resistance signal measurement mechanism, oversheath is formed, described elastic conductor coats the fusible insulating coating of one deck outward and constitutes an exploration cable, described conductor coats one deck meltable plastic layer outward and constitutes another root exploration cable, two described exploration cables twist together, described oversheath is arranged on described exploration cable outside, the signal input part of described resistance signal measurement mechanism is electrically connected with conductor in the described exploration cable, and the softening temperature zone of described fusible insulating coating is 40 ℃～120 ℃.
Compared with the prior art the utility model has following advantage:
1, because the utility model has adopted fusible insulating coating on same on-off value linear temperature-sensitive detector, its any temperature below the amount alarm temperature of detector 85% all is difficult for producing false alarm.
2, the fusible insulating coating temperature variation characteristic that adopts owing to the utility model, the reliability and the sensitivity that have improved line-type heat detector greatly.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1, traditional on-off value linear temperature-sensitive detector structural representation
Fig. 2, traditional on-off value linear temperature-sensitive detector sectional view (sectional view of Fig. 1)
Fig. 3, on-off value linear temperature-sensitive detector structural representation of the present utility model
Fig. 4, on-off value linear temperature-sensitive detector sectional view of the present utility model (sectional view of Fig. 3)
The structural representation of Fig. 5, heat detector embodiment two of the present utility model
The sectional view of Fig. 6, heat detector embodiment two of the present utility model (sectional view of Fig. 5)
The structural representation of Fig. 7, heat detector embodiment three of the present utility model
The sectional view of Fig. 8, heat detector embodiment three of the present utility model (sectional view of Fig. 7)
Embodiment
Referring to Fig. 3, Fig. 4, the on-off value linear temperature-sensitive detector that has fusible insulating coating of the present utility model, by an elastic conductor, a conductor, the meltable plastic layer, resistance signal measurement mechanism (not showing among the figure), oversheath is formed, the described elastic conductor 7 outer fusible insulating coatings 9 of one deck that coat, this is fusible, and the insulating coating outside coats exploration cable of meltable plastic layer 6 formations, the described conductor 8 outer one deck meltable plastic layers 5 that coat constitute another root exploration cable, two described exploration cables formula in the shape of a spiral twist together, described oversheath 4 is arranged on described exploration cable outside, and the signal input part of described resistance signal measurement mechanism is electrically connected with conductor in the described exploration cable.Described fusible insulating coating can adopt wax, naphthalene, anthracene, stearic acid, rosalin etc., and its coating thickness can be chosen between the 0.1-2 millimeter.The melting temperature zone of described fusible insulating coating is 40 ℃～120 ℃.The upper limit of fusing point and lower limit difference are less than 20 ℃.Described conductor can be the plain metal silk, also can be elastic wire.When described detector was heated, its temperature rose thereupon, when temperature reaches the thawing that can melt plastics or softening temperature, under the elastic force effect between elastic conductor and the conductor, had eliminated the meltable plastic layer; But when not reaching the fusing point of fusible insulating coating 9, elastic conductor 7 and conductor 8 also can not be short-circuited; Temperature continues to raise, when reaching the melting temperature of fusible insulating coating, and fusible insulating coating fusing, elastic conductor and conductor are short-circuited, and will produce and output alarm signal by the resistance signal measurement mechanism.
Referring to Fig. 5, Fig. 6, on-off value linear temperature-sensitive detector of the present utility model, by an elastic conductor, a conductor, the meltable plastic layer, resistance signal measurement mechanism (not showing among the figure), oversheath is formed, the described elastic conductor 13 outer fusible insulating coatings 12 of one deck that coat constitute an exploration cable, the described conductor 14 outer one deck meltable plastic layers 11 that coat constitute another root exploration cable, two described exploration cables twist together, described oversheath 10 is arranged on described exploration cable outside, and the signal input part of described resistance signal measurement mechanism is electrically connected with conductor in the described exploration cable.When described detector is heated, its temperature rises thereupon, when temperature reaches the thawing that can melt plastics (high pressure P E material) or softening temperature, under the elastic force effect between elastic conductor 13 and the conductor 14, eliminated the meltable plastic layer between elastic conductor 13 and the conductor 14; But when not reaching the fusing point of fusible insulating coating 12, also have fusible insulating coating 12 between elastic conductor 13 and the conductor 14, elastic conductor 13 and conductor 14 also can not be short-circuited; Temperature continues to raise, when reaching the melting temperature of fusible insulating coating, fusible insulating coating fusing is under the elastic force effect between elastic conductor 13 and the conductor 14, elastic conductor 13 and conductor 14 are short-circuited, and will produce and output alarm signal by the resistance signal measurement mechanism.
Referring to Fig. 7, Fig. 8, heat detector of the present utility model, by an elastic conductor, a conductor, the meltable plastic layer, resistance signal measurement mechanism (not showing among the figure), oversheath is formed, the described elastic conductor 19 outer one deck meltable plastic layers 18 that coat, this meltable plastic layer outside coats a fusible insulating coating 17 and constitutes an exploration cable, the described conductor 20 outer one deck meltable plastic layers 16 that coat constitute another root exploration cable, two described exploration cables twist together, described oversheath 15 is arranged on described exploration cable outside, and the signal input part of described resistance signal measurement mechanism is electrically connected with conductor in the described exploration cable.Described fusible insulating coating melting temperature scope is 40 ℃～120 ℃.When described detector is heated, its temperature rises thereupon, when temperature reaches the thawing that can melt plastics (high pressure P E material) or softening temperature, under the elastic force effect between elastic conductor 19 and the conductor 20,16,18 layers in meltable plastics (high pressure P E material) between elastic conductor 19 and the conductor 20 have been eliminated; But when not reaching the fusing point of fusible insulating coating 17, also have fusible insulating coating 17 between elastic conductor 19 and the conductor 20, elastic conductor 19 and conductor 20 also can not be short-circuited; Temperature continues to raise, when reaching the melting temperature of fusible insulating coating, fusible insulating coating fusing is under the elastic force effect between elastic conductor 19 and the conductor 20, elastic conductor 19 and conductor 20 are short-circuited, and will produce and output alarm signal by the resistance signal measurement mechanism.
Claims (3)
1, a kind of on-off value linear temperature-sensitive detector that has fusible insulating coating, it is characterized in that: by an elastic conductor, a conductor, the meltable plastic layer, the resistance signal measurement mechanism, oversheath is formed, described elastic conductor coats the fusible insulating coating of one deck outward and constitutes an exploration cable, described conductor coats one deck meltable plastic layer outward and constitutes another root exploration cable, two described exploration cables twist together, described oversheath is arranged on described exploration cable outside, the signal input part of described resistance signal measurement mechanism is electrically connected with conductor in the described exploration cable, and the melting temperature zone of described fusible insulating coating is 40 ℃～120 ℃.
2, on-off value linear temperature-sensitive detector according to claim 1 is characterized in that: the outer fusible insulating coating outside of described elastic conductor coats the meltable plastic layer and constitutes an exploration cable.
3, a kind of on-off value linear temperature-sensitive detector that has fusible insulating coating is characterized in that: coat one deck meltable plastic layer between described elastic conductor and fusible insulating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113372 CN2812146Y (en) | 2005-07-13 | 2005-07-13 | Switching-value linear temperature-sensing detector with meltable insulation coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113372 CN2812146Y (en) | 2005-07-13 | 2005-07-13 | Switching-value linear temperature-sensing detector with meltable insulation coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2812146Y true CN2812146Y (en) | 2006-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113372 Expired - Lifetime CN2812146Y (en) | 2005-07-13 | 2005-07-13 | Switching-value linear temperature-sensing detector with meltable insulation coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2812146Y (en) |
-
2005
- 2005-07-13 CN CN 200520113372 patent/CN2812146Y/en not_active Expired - Lifetime
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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: SHOU AN INDUSTRY FIRE LTD. Free format text: FORMER OWNER: ZHANG WEISHE; PATENTEE Effective date: 20080627 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080627 Address after: Beijing City, the Capital Airport South Industrial Zone Banbidian Lee Road No. 22, zip code: 101304 Patentee after: Sureland Industry Fire-Fighting Co., Ltd. Address before: 29-4-201, Sheng Bei Bei, Beijing, Chaoyang District, 100029 Co-patentee before: Li Gangjin Patentee before: Zhang Wei |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Switching-value linear temperature-sensing detector with meltable insulation coating Effective date of registration: 20121010 Granted publication date: 20060830 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150713 Granted publication date: 20060830 |
|
| EXPY | Termination of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171114 Granted publication date: 20060830 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |