CN100426331C - Linear temperature sensing element with window on insulating layer - Google Patents

Linear temperature sensing element with window on insulating layer Download PDF

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Publication number
CN100426331C
CN100426331C CNB200610129894XA CN200610129894A CN100426331C CN 100426331 C CN100426331 C CN 100426331C CN B200610129894X A CNB200610129894X A CN B200610129894XA CN 200610129894 A CN200610129894 A CN 200610129894A CN 100426331 C CN100426331 C CN 100426331C
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CN
China
Prior art keywords
insulation course
window
temperature sensor
linear temperature
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB200610129894XA
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Chinese (zh)
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CN1971644A (en
Inventor
张卫社
李刚进
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SURELAND INDUSTRIAL FIRE SAFETY Ltd
Original Assignee
SURELAND INDUSTRY FIRE-FIGHTING Co Ltd
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Priority to CNB200610129894XA priority Critical patent/CN100426331C/en
Priority to PCT/CN2006/003343 priority patent/WO2008067690A1/en
Publication of CN1971644A publication Critical patent/CN1971644A/en
Application granted granted Critical
Publication of CN100426331C publication Critical patent/CN100426331C/en
Expired - Fee Related legal-status Critical Current
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00Thermometers giving results other than momentary value of temperature
    • G01K3/005Circuits arrangements for indicating a predetermined temperature
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00Measuring temperature based on the expansion or contraction of a material
    • G01K5/48Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G01K5/483Measuring temperature based on the expansion or contraction of a material the material being a solid using materials with a configuration memory, e.g. Ni-Ti alloys

Abstract

A linetyped temperature perceptive component with windows mounted on the insulating layer is disclosed. It includes an oversheath, two detecting conductors and a insulating layer; two detecting conductors are mounted parallel in the inner oversheath by twisted type, and at least one of them is memory alloy thread; the insulating layer coats the outer periphery of arbitrary one of two detecting conductors, one or several spaced windows are formed on the twisted extruded surface between two detecting conductors. The linetyped temperature perceptive component with windows mounted on the insulating layer is heated to make the detecting conductor made of the memory alloy thread extend from the window according the characteristic, and contact with the detecting conductor mounted parallel to generate short circuit to reach the target of alarm. Because the wolliness of memory alloy thread is good, it's convenient to install, and it has high corrosion resistance, so the production has high reliability.

Description

A kind of insulation course is provided with the linear temperature sensor of window
Technical field
The present invention relates to the linear temperature sensor that uses in a kind of line-type heat detector, particularly relate to the linear temperature sensor that a kind of insulation course is provided with window.
Background technology
Line-type heat detector is a kind of broad-spectrum fire detector, mainly form, and be divided into two kinds of recovery formula and beyond retrievables according to the structure difference of linear temperature sensor by linear temperature sensor (also claim survey cable) and the boxcar that is connected linear temperature sensor one end.Fig. 1 and Fig. 2 are respectively vertical partial structurtes of linear temperature sensor and lateral cross section cut-open view in the traditional irrecoverable linear temperature-sensitive detector.As shown in Figure 1 and Figure 2, this traditional linear temperature sensor comprises an oversheath 1; With parallel two detecting conductors 2,3 that are arranged on oversheath 1 inside of stranded mode; On the outer circumference surface that is coated on detecting conductor 2,3, have certain melting point, and the insulation course of making by plastic material 4,5.After a certain section of this linear temperature sensor reaches uniform temperature because of being heated, its inner insulation course 4,5 begins softening or fusion, be in contact with one another together thereby make between the detecting conductor 2,3, promptly be short-circuited, at this moment, the boxcar that links to each other with linear temperature sensor one end will be according to electrical quantity (or sampled value) changing value between the detecting conductor 2,3 size output alarm signal, thereby reaches the purpose of warning.The advantage of this linear temperature sensor is: but after arbitrarily the temperature of any reaches the alarm temperature of setting on this element equal short-circuit alarmings; be that warning sensitivity is irrelevant with the length of being heated; therefore, the detection sensitivity of its fire that object of protection local overheating or external burning things which may cause a fire disaster are caused is very high.But one of shortcoming be in this linear temperature sensor detecting conductor no matter under normal circumstances or be in the alarm temperature environment its elasticity without any variation, simultaneously harder, crisp, therefore in installation and use, can not bear excessive mechanical external force, so difficulty of construction is big; Two of shortcoming is that the detecting conductor in this linear temperature sensor gets rusty easily, and will increase the resistance value of himself and wiring point like this, thereby reduces the reliability of reporting to the police greatly.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide and a kind ofly be convenient to construction and installation, good corrosion resistance, thereby the high insulation course of reliability to be provided with the linear temperature sensor of window.
In order to achieve the above object, the insulation course provided by the invention linear temperature sensor that is provided with window comprises an oversheath, two detecting conductors and an insulation course; Wherein two detecting conductors are with the parallel inside that is arranged on oversheath of stranded mode, and at least one are memory alloy wire wherein; Insulation course is coated in two detecting conductors on arbitrary the outer circumference surface, and is formed with the window of or a plurality of spacings of being separated by on it on the stranded compressive plane between two detecting conductors.
Window on the described insulation course is rectangle, circle or the annular opening of the even or non-homogeneous setting of a plurality of length directions along insulation course, and every meter is provided with one at least, an or linear opening that forms continuously along the length direction of insulation course, or helical opening that forms continuously along the circumferencial direction of insulation course.
Described insulation course adopts resilient material to make, so window has elasticity.
Described insulation course and between the detecting conductor of insulation course outside the parallel semi-conductor layer that is provided with.
One in described two detecting conductors is memory alloy wire, and another is a thermocouple wire.
The parallel conductive layer that is provided with an interrupted conducting between described semiconductor layer and the insulation course.
The linear temperature sensor that insulation course provided by the invention is provided with window can make the detecting conductor of being made by memory alloy wire utilize its characteristic to stretch out from the window on the insulation course when being heated, and contact and be short-circuited, thereby reach the purpose of warning with another parallel detecting conductor that is provided with.Because the memory alloy wire flexibility is good under the normal temperature, therefore be convenient to construction and installation, and good corrosion resistance, so the reliability of products height.
Description of drawings
Fig. 1 and Fig. 2 are respectively vertical partial structurtes of linear temperature sensor and lateral cross section cut-open view in the traditional irrecoverable linear temperature-sensitive detector.
Fig. 3 is provided with the linear temperature sensor one embodiment longitudinal component structure cut-open view of window for insulation course provided by the invention.
Fig. 4 be among Fig. 3 A-A to cut-open view.
Fig. 5 is an insulation layer structure synoptic diagram in the linear temperature sensor provided by the invention.
Fig. 6 is the linear temperature sensor alarm condition synoptic diagram among Fig. 4.
Embodiment
Below in conjunction with the drawings and specific embodiments the linear temperature sensor that insulation course provided by the invention is provided with window is elaborated.The parts identical with prior art adopt identical drawing reference numeral, and omit its explanation of carrying out.
Embodiment one:
As Fig. 3~shown in Figure 4, the linear temperature sensor that insulation course provided by the invention is provided with window comprises an oversheath, 6,7 and insulation courses 8 of two detecting conductors; Wherein two detecting conductors 6,7 are with the parallel inside that is arranged on oversheath of stranded mode, and at least one are memory alloy wire wherein; Insulation course 8 is coated in two detecting conductors 6,7 on arbitrary the outer circumference surface, and is formed with the window 9 of or a plurality of spacings of being separated by on it on the stranded compressive plane between two detecting conductors 6,7.The thickness of insulation course 8 is 1mm in the present embodiment, the detecting conductor 7 that is coated on insulation course 8 inside is memory alloy wire, its martensite reverse transformation finishing temperature Af is set in 50 ℃~100 ℃ the scope, detecting conductor 6 then is the common metal silk, certainly also detecting conductor 7 can be arranged on the outside of insulation course 8, and with detecting conductor 6 portion that sets within it.Window 9 on the insulation course 8 can be rectangle, circle or the annular opening 10,11,12 of the even or non-homogeneous setting of a plurality of length directions along insulation course 8, width is 0.2~3mm, and every meter is provided with one at least, shown in Fig. 5 a, also can be a linear opening 13 that forms continuously along the length direction of insulation course 8, width is 0.1~3mm, shown in Fig. 5 b, or a helical opening 14 that forms continuously along the circumferencial direction of insulation course 8, width is 0.1~3mm, shown in Fig. 5 c.In addition, insulation course provided by the invention is provided with the linear temperature sensor of window can make two kinds of recovery formula or beyond retrievables according to the material difference that insulation course 8 adopts, promptly when insulation course 8 adopts resilient material, can be made into the recovery formula, otherwise be beyond retrievable.In addition, the stranded mode of two detecting conductors 6,7 can be mutual strand, also can be one and be wrapped on another, but also can adopt the stranded mode of other routine.
As shown in Figure 4; the linear temperature sensor that is provided with window when insulation course provided by the invention is in Normal Environmental Temperature following time; be arranged on the inside of insulation course 8 and can not undergo phase transition by the detecting conductor 7 that memory alloy wire is made; this moment its better softness; article two, detecting conductor 6,7 is separated by insulation course 8 and is in state of insulation, therefore short circuit can not occur.And when sending fire, as shown in Figure 6, the position local temperature that is on the linear temperature sensor provided by the invention in this environment will rise because of being heated, when external temperature reaches the martensite reverse transformation finishing temperature Af of detecting conductor 7 settings, the martensite reverse transformation will take place in it, be that rigidity improves, and elastic force is undergone mutation, thereby the trend of the linear state of initial high temperature design appears being returned to by spiral status, but, because the external packets of detecting conductor 7 is covered with insulation course 8, therefore it can only be to the direction generation deformation of window 9, thereby the both sides of window 9 are squeezed open and reach its outside, the result contacts with detecting conductor 6 and short circuit occurs, at this moment, being provided with the boxcar that linear temperature sensor one end of window links to each other with insulation course will be according to detecting conductor 6, electrical quantity between 7 (or sampled value) changing value size output alarm signal, thus reach the purpose of warning.If insulation course 8 is to be made by resilient material, window 9 on it also has elasticity, therefore working as temperature recovers just often, detecting conductor 7 will undergo phase transition once more and revert to martensite, be that rigidity reduces, thereby be withdrawn into the inside of insulation course 8 under the elastic force effect of window 9, at this moment the state between two detecting conductors 6,7 becomes state of insulation again.
Described memory alloy wire is a kind of in Ultimum Ti, NiTi copper memorial alloy, iron-based memorial alloy, the copper-based memory alloy material.Insulation course 8 is thermoplastic elastic material, elastomeric material or other rubber-like macromolecular material, and its thickness is 0.1~3 millimeter.
Embodiment two:
Present embodiment is in the improvement on embodiment one basis: promptly walking abreast between insulation course 8 and detecting conductor 6 is provided with semi-conductor layer, and this semiconductor layer is coated on the detecting conductor 6 with conventionally form.The linear temperature sensor that is provided with window when insulation course provided by the invention is heated and when reaching the martensite reverse transformation finishing temperature Af that detecting conductor 7 sets, detecting conductor 7 will be protruding from the window on the insulation course 89, thereby contact with semiconductor layer, at this moment, the boxcar that links to each other with this linear temperature sensor one end will be according to the size of electrical quantity (or sampled value) changing value between the detecting conductor 6,7 output alarm signal.
Described semiconductor layer be selected from have PTC, a kind of in the conductive rubber of characteristics such as CTR, NTC, conductive plastics, conductivity ceramics.
Embodiment three:
Present embodiment is the improvement on embodiment two bases: promptly detecting conductor 6 adopts thermocouple wire, and two detecting conductors 6,7 constitute interim thermopair when being heated, and boxcar then carries out fire alarm according to voltage between two detecting conductors 6,7 or electromotive force size.
Described thermocouple wire can adopt constantan (copper nickel), nisiloy, tungsten, chemical pure iron, examine a kind of in the metal materials such as copper, molybdenum, chemical fine copper, nickel chromium triangle, nickel, platinum, silver, also can adopt nonmetallic materials or semiconductor materials such as N type bismuth telluride, P type bismuth telluride such as graphite, silit, boron, chromium oxide.
Embodiment four:
Present embodiment is the improvement on embodiment two bases: the conductive layer that promptly increases by a parallel interrupted conducting that is provided with between insulation course 8 and semiconductor layer.This conductive layer can be eliminated environment temperature on the one hand to the line-type heat detector Effect on Performance of reporting to the police, can make on the other hand between detecting conductor 6 and the semiconductor layer contact more reliable, thereby fire alarm signal more accurately can be provided.
The conductive layer of described interrupted conducting is selected from a kind of in the materials such as tinsel, nonmetal wire, sheet metal, metallic foil, open column shape metallic sheath, conducting resinl or electrically-conducting paint.The conductive layer of interrupted conducting can be to make in advance, also can be earlier the conductive layer of continuous conducting be set, and then is made into the state of interrupted conducting with physics such as machine cuts or chemical method.The length that the conductive layer of interrupted conducting is every section is generally greater than 0.5m, the distance between each conductive segment, promptly non-conductive section the preferred 0.1~10mm of length.
Embodiment five:
Present embodiment is the improvement on embodiment three bases: the conductive layer that promptly increases by a parallel interrupted conducting that is provided with between insulation course 8 and semiconductor layer.

Claims (7)

1, a kind of insulation course is provided with the linear temperature sensor of window, comprises an oversheath, two detecting conductors (6,7) and an insulation course (8); Wherein two detecting conductors (6,7) are with the parallel inside that is arranged on oversheath of stranded mode, and at least one are memory alloy wire wherein; It is characterized in that: described insulation course (8) is coated in two detecting conductors (6,7) on arbitrary the outer circumference surface, and is positioned at the window (9) that is formed with or a plurality of spacings of being separated by on the stranded compressive plane between two detecting conductors (6,7) on it.
2, insulation course according to claim 1 is provided with the linear temperature sensor of window, it is characterized in that: the window (9) on the described insulation course (8) is rectangle, circle or the annular opening (10,11,12) of the even or non-homogeneous setting of a plurality of length directions along insulation course (8), and every meter is provided with one at least, an or linear opening (13) that forms continuously along the length direction of insulation course (8), or helical opening (14) that forms continuously along the circumferencial direction of insulation course (8).
3, insulation course according to claim 1 is provided with the linear temperature sensor of window, it is characterized in that: described insulation course (8) adopts resilient material to make, so window (9) has elasticity.
4, insulation course according to claim 1 is provided with the linear temperature sensor of window, it is characterized in that: described insulation course (8) and be positioned at the parallel semi-conductor layer that is provided with between the outside detecting conductor of insulation course (8).
5, insulation course according to claim 4 is provided with the linear temperature sensor of window, it is characterized in that: one in described two detecting conductors (6,7) is memory alloy wire, and another is a thermocouple wire.
6, insulation course according to claim 4 is provided with the linear temperature sensor of window, it is characterized in that: the parallel conductive layer that is provided with an interrupted conducting between described semiconductor layer and the insulation course (8).
7, insulation course according to claim 5 is provided with the linear temperature sensor of window, it is characterized in that: the parallel conductive layer that is provided with an interrupted conducting between described semiconductor layer and the insulation course (8).
CNB200610129894XA 2006-12-06 2006-12-06 Linear temperature sensing element with window on insulating layer Expired - Fee Related CN100426331C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNB200610129894XA CN100426331C (en) 2006-12-06 2006-12-06 Linear temperature sensing element with window on insulating layer
PCT/CN2006/003343 WO2008067690A1 (en) 2006-12-06 2006-12-08 A linear temperature-sensing element with windows on an insulating layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200610129894XA CN100426331C (en) 2006-12-06 2006-12-06 Linear temperature sensing element with window on insulating layer

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CN100426331C true CN100426331C (en) 2008-10-15

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116678B (en) * 2010-01-04 2013-05-15 泷川工程株式会社 Thermometer for moving body
CN103345970A (en) * 2013-07-15 2013-10-09 中利科技集团股份有限公司 Intelligent on-line railway-signal-monitoring cable

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0896630A (en) * 1994-09-26 1996-04-12 Furukawa Electric Co Ltd:The Fire detecting wire
JPH08128903A (en) * 1994-10-31 1996-05-21 Tokin Corp Temperature sensor
CN1842829A (en) * 2003-08-29 2006-10-04 和田耕一 Temperature detector
CN200983191Y (en) * 2006-12-06 2007-11-28 张卫社 A linear temperature sensing part with window at insulation layer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485101A (en) * 1968-02-13 1969-12-23 John E Lindberg Continuously supported sensor
PL138268B1 (en) * 1982-08-13 1986-08-30 Politechnika Warszawska Linear fire detector of warning fire protection system
JPS607334A (en) * 1983-06-28 1985-01-16 Sumitomo Electric Ind Ltd Temperature detecting device
CN2809746Y (en) * 2005-07-12 2006-08-23 张卫社 A flexible corrosion-resistant switching value linear heat sensitive detector
CN2812147Y (en) * 2005-07-13 2006-08-30 张卫社 An analogue linear temperature-sensing detector with fusible or meltable insulation layer
CN2814542Y (en) * 2005-08-08 2006-09-06 张卫社 Analog quantity linear temperature-sensing detector based on memory alloy filament and pressure-sensitive material layer
CN2921981Y (en) * 2006-04-25 2007-07-11 张卫社 Linear temperature sensing element based on memory alloy filament
CN2924666Y (en) * 2006-05-17 2007-07-18 张卫社 Memory alloy wire based linetype temperature sensing element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0896630A (en) * 1994-09-26 1996-04-12 Furukawa Electric Co Ltd:The Fire detecting wire
JPH08128903A (en) * 1994-10-31 1996-05-21 Tokin Corp Temperature sensor
CN1842829A (en) * 2003-08-29 2006-10-04 和田耕一 Temperature detector
CN200983191Y (en) * 2006-12-06 2007-11-28 张卫社 A linear temperature sensing part with window at insulation layer

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CN1971644A (en) 2007-05-30
WO2008067690A1 (en) 2008-06-12

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Owner name: SHOU AN INDUSTRY FIRE LTD.

Free format text: FORMER OWNER: ZHANG WEISHE; APPLICANT

Effective date: 20080627

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Address after: Beijing City, the Capital Airport South Industrial Zone Banbidian Road No. 22 Lee post encoding: 101304

Applicant after: Sureland Industrial Fire Safety Ltd.

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Applicant before: Zhang Weishe

Co-applicant before: Li Gangjin

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Denomination of invention: Linear temperature sensing element with window on insulating layer

Effective date of registration: 20121010

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Pledgee: Bank of America Ltd. Shanghai branch

Pledgor: Sureland Industrial Fire Safety Ltd.

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