CN201017431Y - Linetype temperature perception element - Google Patents
Linetype temperature perception element Download PDFInfo
- Publication number
- CN201017431Y CN201017431Y CNU2007200950368U CN200720095036U CN201017431Y CN 201017431 Y CN201017431 Y CN 201017431Y CN U2007200950368 U CNU2007200950368 U CN U2007200950368U CN 200720095036 U CN200720095036 U CN 200720095036U CN 201017431 Y CN201017431 Y CN 201017431Y
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- temperature sensor
- linear temperature
- detecting
- softening
- sensor according
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- 230000008447 perception Effects 0.000 title 1
- 239000004020 conductor Substances 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000011810 insulating material Substances 0.000 claims abstract description 24
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 6
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
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- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229920002313 fluoropolymer Polymers 0.000 claims description 3
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- 229920001194 natural rubber Polymers 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920001197 polyacetylene Polymers 0.000 claims description 3
- 229920000767 polyaniline Polymers 0.000 claims description 3
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- 230000004044 response Effects 0.000 abstract description 11
- 238000002844 melting Methods 0.000 abstract description 4
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Abstract
The utility model discloses a linear temperature sensor element, which mainly comprises two parallel-arranged detecting conductors, two meltable insulating layers that are arranged in parallel between the detecting conductors, as well as layers combined with NTC characteristic materials and high-softening-point insulating materials in laminated distribution. The linear temperature sensor element provided by the utility model utilizes the combined layers, with NTC characteristic materials and high-softening-point insulating materials in laminated distribution, and meltable insulating layers arranged between the two detecting conductors. Softening temperature or melting point of the high-softening-point insulating materials is higher than that of the NTC characteristic materials, for which neither softening nor melting will happen in response time and consistency tests. Therefore, the utility mode can prevent the problem of false alarm caused by direct contacting of the two detecting conductors. Meanwhile, the linear temperature sensor elements, which have passed the response time and the consistency tests, can still be reused, for which waste can be avoided.
Description
Technical field
The utility model relates to a kind of linear temperature sensor, particularly a kind of short circuit false alarm problem of occurring in the test of response time and consistance and can reusable linear temperature sensor of can preventing.
Background technology
Line-type heat detector is a kind of broad-spectrum fire detector, usually by linear temperature sensor, be connected the terminal resistance of linear temperature sensor one end and be connected the other end of linear temperature sensor, can detect the warning electrical quantity (or sampled value) on the linear temperature sensor all the time, and form according to the size of warning electrical quantity (or sampled value) or the boxcar of changing value output fire alarm signal.Disclose a kind of linear temperature sensor in the Chinese patent application that proposes by the inventor No. 200520121813.2 and No. 200510114820.4.Fig. 1 is the linear temperature sensor lateral cross section structural representation of this prior art.As shown in Figure 1, the linear temperature sensor of this prior art comprises two parallel detecting conductors that are provided with 1,2 and parallel NTC characteristic barrier layer 3 and the fused insulating layer 4 that is arranged between the detecting conductor 1,2.Wherein detecting conductor 1,2 can adopt thermocouple wire, and the NTC characteristic then is meant negative temperature coefficient.When a part of this linear temperature sensor raises because of the temperature of being heated and reaches the temperature of fusion of fused insulating layer 4, the fused insulating layer 4 of this inside, position will begin fusing or softening, this moment two detecting conductors 1,2 will be subjected to the influence of himself distortional stress and eliminate to be positioned at two detecting conductors 1, fused insulating layer 4 between 2, this position will change into common NTC analog quantity or CTTC (or FTLD) Continuous Heat galvanic couple molded lines type temperature sensing element as a result, i.e. two detecting conductors 1, resistance between 2 (or voltage) descends (or rise) with the rising of temperature, and the boxcar that is connected this linear temperature sensor one end then sends fire alarm signal according to resistance (or voltage) or by the variable quantity size that resistance (or voltage) changes other electrical quantity that causes.But, there is following point in the linear temperature sensor of this prior art: when line-type heat detector being carried out the test of response time and consistance, need make the heating temperature of linear temperature sensor be increased to response time and consistance test temperature, this test temperature is set at 1.4 times of linear temperature sensor operating temperature usually, when promptly if operating temperature is 85 ℃, then response time and consistance test temperature then are 119 ℃, but this temperature surpasses the softening point temperature of fused insulating layer 4 and 3 two kinds of materials of NTC characteristic barrier layer already, be that these two kinds of materials have all produced softening or fusing, this moment two detecting conductors 1,2 will be subjected to the influence of himself distortional stress and eliminate simultaneously to be positioned at two detecting conductors 1, fused insulating layer 4 between 2 and NTC characteristic barrier layer 3, thereby directly contact and be short-circuited, the result causes the boxcar mistake that is connected this linear temperature sensor one end to send failure alarm signal.In addition,, therefore can not reuse again, will cause bigger waste like this owing to the equal destroyed of structure of fused insulating layer in the linear temperature sensor heated part 4 in above-mentioned test and NTC characteristic barrier layer 3.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of short circuit false alarm problem and can reusable linear temperature sensor of can preventing to occur in response time and consistance test.
In order to achieve the above object, the linear temperature sensor that provides of the utility model mainly comprises two parallel detecting conductors that are provided with and parallel fused insulating layer and and the combination layer that constitute spaced apart by NTC characteristic material and high softening-point insulating material that is arranged between the detecting conductor.
The external packets of described detecting conductor, combination layer and fused insulating layer is covered with insulating sheath.
High softening-point insulating material in the described combination layer is selected from fluoroplastic, glass fibre, insullac, the coatings that softening point temperature is higher than NTC characteristic material, its fusing or softening range are 100 ℃～250 ℃, and the thickness of combination layer is in the scope of 0.1～5mm.
NTC characteristic material in the described combination layer is selected from a kind of in polyacetylene, polyaniline, polythiophene, the poly-phthalein mountain valley with clumps of trees and bamboo.
Described fused insulating layer is selected from a kind of in wax, naphthalene, anthracene, stearic acid, the rosalin material, perhaps a kind of in Polyvinylchloride, tygon, natural rubber, neoprene, the nitrile rubber, and its thickness is between the scope of 0.05～10mm.
At least one is memory alloy wire in described two detecting conductors, and this memory alloy wire is a kind of in Ultimum Ti, iron-based memorial alloy, the copper-based memory alloy material.
At least one is carbon spring steel wires in described two detecting conductors.
At least one outside is coated with fused insulating layer and combination layer successively in described two detecting conductors.
At least one outside is coated with combination layer and fused insulating layer successively in described two detecting conductors.
Be coated with fused insulating layer on the detecting conductor in described two detecting conductors, be coated with combination layer on another detecting conductor.
The linear temperature sensor that the utility model provides is to utilize by NTC characteristic material and the high softening-point insulating material is spaced apart and combination layer and fused insulating layer that constitute are arranged between two detecting conductors, because the softening or melting point temperature of high softening-point insulating material is higher than the softening or melting point temperature of NTC characteristic material, so it can not occur softening or fusing in response time and consistance test, therefore can prevent from directly to contact the false alarm problem that causes because of two detecting conductors, even and also can reuse through the linear temperature sensor of response time and consistance test, so can avoid waste.
Description of drawings
Fig. 1 is the linear temperature sensor transverse sectional view of prior art.
Fig. 2 is linear temperature sensor one an embodiment transverse sectional view provided by the invention.
The linear temperature sensor transverse sectional view that Fig. 3 adopts the utility model of parallel mode setting to provide for detecting conductor.
The linear temperature sensor vertical structure synoptic diagram that Fig. 4 adopts the utility model of canoe setting to provide for detecting conductor.
The linear temperature sensor transverse sectional view that Fig. 5 adopts the utility model of coaxial manner setting to provide for detecting conductor.
The line-type heat detector structural representation of the linear temperature sensor that the utility model is installed provides is provided Fig. 6.
Embodiment
Below in conjunction with drawings and Examples the linear temperature sensor that the utility model provides is elaborated.
As shown in Figure 2, the linear temperature sensor that the utility model provides comprises two parallel detecting conductors 5 that are provided with, 9 and parallel fused insulating layer 6 and and the combination layer 7 that constitute spaced apart that is arranged between the detecting conductor 5,9 by NTC characteristic material and high softening-point insulating material.Described detecting conductor 5,9 can be hollow core conductor, solid conductor or metal fibre braided wire, and that parallel setting then comprises is parallel, winding and coaxial several modes are set.As shown in Figure 3, when two detecting conductors 5,9 be arranged in parallel, fused insulating layer 6 and combination layer 7 were set in parallel between the detecting conductor 5,9, and are adjacent to mutually.As shown in Figure 4, when two detecting conductors 5,9 twine when being provided with, can twine in the outside of a detecting conductor another is set, also can the stranded mode of spiral with two detecting conductors 5,9 are intertwined, and simultaneously fused insulating layer 6 are coated on the outside of a detecting conductor 5, and combination layer 7 are coated on the outside of another root detecting conductor 9.As shown in Figure 5, when two detecting conductors 5, during 9 coaxial settings, the detecting conductor 9 that is positioned at the centre is solid conductor, the detecting conductor 5 that is enclosed within the solid conductor outside then is hollow core conductor, can between detecting conductor 9,5, from inside to outside coat combination layer 7 and fused insulating layer 6 or fused insulating layer 6 and combination layer 7 successively.In addition, described combination layer 7 can adopt following three kinds of modes to prepare and be arranged on the detecting conductor:
Mode one: with the high softening-point insulating material make diameter be 0.1mm～0.5mm the silk material, on detecting conductor, be woven into then netted, to form a braid with holes.Utilize NTC characteristic material in the extrusion process extruding on the detecting conductor of braid having afterwards, make NTC characteristic distribution of material in the mesh of above-mentioned braid, thereby form spaced apart and combination layer 7 that constitute by NTC characteristic material and high softening-point insulating material.
As shown in Figure 4, also can utilize particular manufacturing craft or device will at least three high softening-point insulating material silk materials 8 be arranged on wherein on the detecting conductor in mode parallel or that twine, adopt the extrusion process extruding to go up NTC characteristic material simultaneously, make in the gap of NTC characteristic distribution of material between high softening-point insulating material silk material 8, thereby form spaced apart and combination layer 7 that constitute by NTC characteristic material and high softening-point insulating material.
Mode two: will be soaked with the high softening-point insulating material silk of NTC characteristic material or bar and be wrapped in wherein on the detecting conductor.
Mode three: outside filar conductors, soak one deck high softening-point insulating material, utilize will at least three above-mentioned silk material that has soaked the high softening-point insulating material of particular manufacturing craft or device to be arranged on wherein on the detecting conductor then in mode parallel or that twine, adopt the extrusion process extruding to go up NTC characteristic material simultaneously, make NTC characteristic distribution of material in the above-mentioned gap of silk between the material of having soaked the high softening-point insulating material, thereby form spaced apart and combination layer 7 that constitute by NTC characteristic material and high softening-point insulating material.
High softening-point insulating material in the described combination layer 7 is selected from materials such as fluoroplastic that softening point temperature is higher than NTC characteristic material, glass fibre, insullac, coatings, and its fusing or softening range are 100 ℃～250 ℃.NTC characteristic material then is selected from a kind of in polyacetylene, polyaniline, polythiophene, the poly-phthalein mountain valley with clumps of trees and bamboo.In addition, the thickness of combination layer 7 is in the scope of 0.1～5mm.
Described fused insulating layer 6 is selected from a kind of in wax, naphthalene, anthracene, stearic acid, the rosalin material, perhaps a kind of in Polyvinylchloride, tygon, natural rubber, neoprene, the nitrile rubber, and its thickness is between the scope of 0.05～10mm.
At least one in described two detecting conductors 5,9 is memory alloy wire or carbon spring steel wires.Wherein memory alloy wire is a kind of in Ultimum Ti, NiTi copper memorial alloy, iron-based memorial alloy, the copper-based memory alloy material, and the design load of its martensite reverse transformation finishing temperature Af can be selected to set in 20 ℃～140 ℃ scopes.
In addition, described linear temperature sensor is outer can also to coat an insulating sheath, is used for and external insulation.
The line-type heat detector structural representation of the linear temperature sensor that the utility model is installed provides is provided Fig. 6.As shown in Figure 6, this line-type heat detector comprises the linear temperature sensor that the utility model provides and is connected to the terminal resistance 18 and the boxcar 19 at linear temperature sensor two ends.Wherein linear temperature sensor is made up of two parallel detecting conductors 5,9 and parallel combination layer 7 and the fused insulating layer 6 that is arranged between the detecting conductor 5,9.Coat combination layer 7 on the detecting conductor 9, coat fused insulating layer 6 on the detecting conductor 5, but also can be covered with insulating sheath in the external packets of linear temperature sensor.
When the line-type heat detector that the utility model is provided carries out response time and consistance test, when even linear temperature sensor is heated and temperature directly rise to 1.4 times of operating temperature, fusing or softening will appear in the fused insulating layer 6 of inside, heated part on the linear temperature sensor in this process, this moment two detecting conductors 5,9 will rely on the distortional stress of himself and eliminate in this position fused insulating layer 6 between two detecting conductors 5,9; Meanwhile, the NTC characteristic material in the combination layer 7 also will occur softening or fusing, but because the fusing point of high softening-point insulating material is higher relatively, thereby it fusing or softening do not occur.As mentioned above, because NTC characteristic material and high softening-point insulating material are spaced apart, so the high softening-point insulating material just can stop two detecting conductors 5,9 rely on the distortional stress of himself and eliminate two detecting conductors 5 in the heated part, combination layer 7 between 9, promptly can prevent two detecting conductors 5,9 are short-circuited because of direct contact, so the heated part is still the linear temperature sensor of common NTC characteristic, even also can reuse through the linear temperature sensor of response time and consistance test like this.
In addition, described conductor and insulator are relative conductor and relative insulator, can be with the ratio of the resistivity of normal temperature lower insulator and the resistivity of conductor greater than 10
8Distinguish conductor and insulator.
Claims (10)
1. linear temperature sensor, mainly comprise two parallel detecting conductors (5 that are provided with, 9) and the parallel detecting conductor (5 that is arranged on, 9) fused insulating layer between (6), it is characterized in that: described linear temperature sensor also comprises parallel being arranged between the detecting conductor (5,9) and and combination layer (7) that constitute spaced apart by NTC characteristic material and high softening-point insulating material.
2. linear temperature sensor according to claim 1 is characterized in that: the external packets of described detecting conductor (5,9), combination layer (7) and fused insulating layer (6) is covered with insulating sheath.
3. linear temperature sensor according to claim 1, it is characterized in that: the high softening-point insulating material in the described combination layer (7) is selected from fluoroplastic, glass fibre, insullac, the coatings that softening point temperature is higher than NTC characteristic material, its fusing or softening range are 100 ℃～250 ℃, and the thickness of combination layer (7) is in the scope of 0.1～5mm.
4. linear temperature sensor according to claim 1 is characterized in that: the NTC characteristic material in the described combination layer (7) is selected from a kind of in polyacetylene, polyaniline, polythiophene, the poly-phthalein mountain valley with clumps of trees and bamboo.
5. linear temperature sensor according to claim 1, it is characterized in that: described fused insulating layer (6) is selected from a kind of in wax, naphthalene, anthracene, stearic acid, the rosalin material, perhaps a kind of in Polyvinylchloride, tygon, natural rubber, neoprene, the nitrile rubber, its thickness is between the scope of 0.05～10mm.
6. linear temperature sensor according to claim 1, it is characterized in that: described two detecting conductors (5,9) at least one is memory alloy wire in, and this memory alloy wire is a kind of in Ultimum Ti, iron-based memorial alloy, the copper-based memory alloy material.
7. linear temperature sensor according to claim 1 is characterized in that: at least one is carbon spring steel wires in described two detecting conductors (5,9).
8. linear temperature sensor according to claim 1 is characterized in that: the outside of (5,9) at least one is coated with fused insulating layer (6) and combination layer (7) successively in described two detecting conductors.
9. linear temperature sensor according to claim 1 is characterized in that: the outside of (5,9) at least one is coated with combination layer (7) and fused insulating layer (6) successively in described two detecting conductors.
10. linear temperature sensor according to claim 1 is characterized in that: be coated with fused insulating layer (6) on the detecting conductor of (5,9) in the described two limit detecting conductors, be coated with combination layer (7) on another detecting conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200950368U CN201017431Y (en) | 2007-01-23 | 2007-01-23 | Linetype temperature perception element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200950368U CN201017431Y (en) | 2007-01-23 | 2007-01-23 | Linetype temperature perception element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017431Y true CN201017431Y (en) | 2008-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200950368U Expired - Lifetime CN201017431Y (en) | 2007-01-23 | 2007-01-23 | Linetype temperature perception element |
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| Country | Link |
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| CN (1) | CN201017431Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437650C (en) * | 2007-01-23 | 2008-11-26 | 首安工业消防有限公司 | Linear temperature sensor |
-
2007
- 2007-01-23 CN CNU2007200950368U patent/CN201017431Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437650C (en) * | 2007-01-23 | 2008-11-26 | 首安工业消防有限公司 | Linear temperature sensor |
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| C14 | Grant of patent or utility model | ||
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| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: LI GANGJIN ¬ |
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| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Li Gangjin Number: 06 Page: The title page Volume: 24 |
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| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Li Gangjin Number: 06 Volume: 24 |
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| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ¬ TO: LI GANGJIN ¬ |
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| 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 |
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| 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: The construction of the road in the middle of Xiqing Yangliuqing town, Tianjin District 55, zip code: 300380 Co-patentee before: Li Gangjin Patentee before: Zhang Wei |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Linear temperature sensor Effective date of registration: 20121010 Granted publication date: 20080206 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
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| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
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| 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: 20080206 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |