CN201262774Y - Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal - Google Patents
Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal Download PDFInfo
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- CN201262774Y CN201262774Y CNU2008201389360U CN200820138936U CN201262774Y CN 201262774 Y CN201262774 Y CN 201262774Y CN U2008201389360 U CNU2008201389360 U CN U2008201389360U CN 200820138936 U CN200820138936 U CN 200820138936U CN 201262774 Y CN201262774 Y CN 201262774Y
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Abstract
The utility model aims at providing a linear temperature-sensing detector for the multi-loop sectional monitoring of temperature-sensing electric signals, and the detector is formed as follows: two ends of a temperature-sensing cable are respectively connected with an electric signal detection device and a termination resistor to from a closed-circuit signal acquisition circuit. The temperature-sensing cable comprises two or a plurality of detection conductors, the two or a plurality of detection conductors are respectively and sectionally coated by an NTC characteristic material layer and an insulating material layer, the detection conductors with the coating layers are staggeredly arranged and can be arranged in parallel or stranded or wound together, then a conductive layer is lapped or extruded, an outer protective sheath is further extruded to prepare the multi-loop temperature-sensing cable, and each loop can monitor one section or a plurality of sections of the temperature-sensing electric signals of the temperature-sensing cable, thereby being capable of realizing the functions of rate-of-rise alarm, fixed temperature alarm, rate-of-rise and fixed temperature alarm and fault alarm of short circuit, broken circuit and power failure and being capable of being used repeatedly.
Description
Technical field
The utility model relates to a kind of line-type heat detector of multi-loop sectional monitoring temperature-sensing electrical signal, particularly relate to a kind of influence of length that reduce to be heated to alarm temperature, environment temperature is little to alarm temperature influence, and that can avoid occurring reporting by mistake the fire alarm problem is used for the renewable type line-type heat detector.
Technical background
Line-type heat detector of the prior art is a kind of broad-spectrum fire detector, the present renewable type line-type heat detector that uses: referring to Fig. 1, detector is made up of temperature sensing cable, resistance signal measurement mechanism, temperature sensing cable is by two detecting conductors, the 10 outer NTC plastic layers 11 that coat respectively, two detecting conductors twist together, oversheath 12 is arranged, the signal input part of resistance signal measurement mechanism 13 is connected with described detecting conductor, is used to measure the resistance situation between described two detecting conductors.When the detector temperature sensing cable was heated, its temperature rose thereupon, and at first the resistance of the NTC plastic layer 11 between two conductors descends, and when its resistance drops to a setting value, the resistance signal measurement mechanism will produce and output alarm signal.The shortcoming of this detector is: the alarm temperature of detector is relevant with the factors such as the length of being heated, heating temperature, environment temperature and use length of temperature sensing cable, can not right judgement fire alarm temperature, make the accuracy of this detector alarm temperature, reliably lower.Another kind of prior art, referring to Fig. 2, detector is made up of temperature sensing cable, resistance signal measurement mechanism, temperature sensing cable is by two parallel detecting conductors that are provided with 10 and a parallel NTC or CTR characteristic material layer 11, one interrupted conductive layer 15 and fused insulating layers 14 that are arranged between two detecting conductors 10, and in two detecting conductors 10 at least one be elastic conductor.When the linear temperature sensitive cable on this detector is heated and reaches uniform temperature, the fused insulating layer 14 of inside, heated part will begin to occur softening or melt, at this moment, under the elastic force effect of two detecting conductors 10, wherein detecting conductor 10 will and interrupted conductive layer 15 between be in contact with one another conducting, thereby make this contact conducting region form a line-type heat detector with conventional NTC or CTR characteristic, when the heated part reaches alarm temperature in this case, resistance signal measurement mechanism 13 output alarm signals when the resistance value between the resistance signal measurement mechanism 13 detected detecting conductors 10 reaches setting value.The shortcoming of this detector is: in the use of detector, increase along with alarm times, the cumulative length of contact conducting region will constantly increase, make the alarm temperature of detector relevant with the factors such as the length of being heated, heating temperature and use length of temperature sensing cable, can not right judgement fire alarm temperature, make the accuracy of this detector alarm temperature, reliability lower.
Summary of the invention
The purpose of this utility model is to provide a kind of line-type heat detector of multi-loop sectional monitoring temperature-sensing electrical signal, and this detector is to be connected to form the closed circuit signaling Acquisition Circuit with electrical signal detection device and terminal resistance respectively by the temperature sensing cable two ends.Temperature sensing cable has two or two above detecting conductors, the above detecting conductors of two or two segmentation respectively coat NTC characteristic material layer, insulation material layer, several have the detecting conductor of clad to be staggered, can be parallel, stranded, twine and to be set together, wrapped then or extrusion molding conductive layer, the extrusion molding external sheath layer is made the multiloop temperature sensing cable again, one or more snippets temperature sensing cable temperature-sensing electrical signal can be monitored in each loop, can realize that differential temperature is reported to the police, constant temperature is reported to the police, different constant temperature is reported to the police, short circuit, open circuit, the disconnection fault warning function, reusable.
The line-type heat detector that a kind of multi-loop sectional of the present utility model is gathered electric signal compared with prior art has following advantage:
1, because the utility model adopts multi-loop sectional monitoring temperature-sensing electrical signal, significantly reduced the influence that temperature sensing cable warning precision is subjected to the environment for use temperature and uses length.
2, because the utility model adopts multi-loop sectional monitoring temperature-sensing electrical signal, when temperature sensing cable heated portion length when coating NTC characteristic material layer segment length, have only the electric signal in one or two loop to change, it is to be heated among a small circle or to be heated on a large scale that the electrical signal detection device can be analyzed temperature sensing cable, when temperature sensing cable is heated on a large scale, by the temperature-sensing electrical signal of multiloop monitoring is resolved, realize temperature-sensitive warning precision is revised.
Description of drawings
Fig. 1 is a renewable type line-type heat detector structural representation in the prior art;
Fig. 2 is a line-type heat detector structural representation in the prior art;
Fig. 3 is the structural representation of the line-type heat detector embodiment one of a kind of multi-loop sectional monitoring temperature-sensing electrical signal of the utility model;
Fig. 4 is the structural representation of the utility model embodiment two.
Embodiment
A kind of line-type heat detector of multi-loop sectional monitoring temperature-sensing electrical signal, example 1 is seen Fig. 3, is to be connected to form multiloop closed circuit signaling Acquisition Circuit with electrical signal detection device 6 and terminal resistance R1, R2, R3 respectively by the temperature sensing cable two ends.It is characterized in that temperature sensing cable has three detecting conductors 1 and public pole to constitute multiloop, three detecting conductor 1 outer NTC characteristic material layers 2 that coat respectively, distinguish section gap coated insulation material layer 3 again, coat NTC characteristic material layer 2, the detecting conductor 1 of insulation material layer 3 is arranged with the clad interlace mode, can be parallel or stranded after the arrangement or twine and to be set together, wrapped then conductive layer 4, conductive layer 4 is as public pole, extrusion molding external sheath layer 5 is made temperature sensing cable more at last, the temperature-sensing electrical signal of one or more snippets temperature sensing cable can be monitored in each loop, the length of every section coated insulation material layer 3 is every section 15 times～two times of coating NTC characteristic material interval between 3m～50m.Described three have the detecting conductor 1 of clad to arrange with the clad interlace mode, to guarantee that temperature sensing cable when heated portion is less than or equal to coating NTC characteristic material layer 2 length, has only the electric signal in one or two loop to change; Described electric signal changes, and is meant temperature sensing cable in the serviceability temperature scope, and the electric signal that coats NTC characteristic material layer 2 changes, and the electric signal of coated insulation material layer 3 does not change.
Whether the electric signal that electrical signal detection device 6 detects temperature sensing cable in real time changes, when temperature sensing cable is heated, coat detecting conductor 12 sections of NTC characteristic material layers since heated resistance reduce, electric signal changes relatively, according to the electric signal size preset value relative, judge output constant temperature alerting signal by electrical signal detection device 6 with temperature; Whether change in electric amount in the time of also can be according to heating rate 〉=5 ℃/min by electrical signal detection device 6 judges output differential temperature alerting signals greater than preset value; Same also exportable temperature sensing cable short circuit, open circuit fault alerting signal and electrical signal detection device disconnection fault alerting signal.
The line-type heat detector of 2 one kinds of multi-loop sectional monitoring temperature-sensing electrical signals of embodiment is seen Fig. 4, is to be connected to form multiloop closed circuit signaling Acquisition Circuit with electrical signal detection device 6 and terminal resistance R1, R2, R3 respectively by the temperature sensing cable two ends.It is characterized in that temperature sensing cable has three detecting conductors 1 and public pole to constitute multiloop, three detecting conductor 1 outer NTC characteristic material layer 2 and insulation material layers 3 of coating at interval respectively, the method that coats NTC characteristic material layer 2 and insulation material layer 3 can be an extrusion molding, twine, methods such as coating, detecting conductor 1 is connected with welding manner in 2 sections coupling parts with 3 sections of insulation material layers of coating NTC characteristic material layer, the place of being welded to connect coats with para tape, the length that every section coated insulation material layer is 3 sections is between 3m～50m, be every section 15 times～two times of coating 2 sections of NTC characteristic material layers, wherein three have the detecting conductor 1 of clad to arrange with the clad interlace mode, to guarantee that temperature sensing cable when heated portion is less than or equal to coating NTC characteristic material interval 2 length, has only the electric signal in one or two loop to change; After the arrangement can be parallel, stranded, twine and to be set together, wrapped then conductive layer 4, conductive layer 4 are as the electric signal public pole, extrusion molding external sheath layer 5 is made temperature sensing cable more at last.The temperature-sensing electrical signal of one or more snippets temperature sensing cable can be monitored in each loop.Described electric signal changes, and is meant temperature sensing cable in the serviceability temperature scope, and the electric signal that coats NTC characteristic material interval 2 changes, and the electric signal of coated insulation material interval 3 does not change.
Whether the electric signal that electrical signal detection device 6 detects temperature sensing cable in real time changes, when temperature sensing cable is heated, coat detecting conductor 12 sections of NTC characteristic material layers since heated resistance reduce, electric signal changes relatively, according to the electric signal size preset value relative, judge output constant temperature alerting signal by electrical signal detection device 6 with temperature; Whether change in electric amount in the time of also can be according to heating rate 〉=5 ℃/min by electrical signal detection device 6 judges output differential temperature alerting signals greater than preset value; Also exportable temperature sensing cable short circuit, open circuit fault alerting signal and electrical signal detection device disconnection fault alerting signal.
The foregoing description 1 and embodiment 2, the detecting conductor 1 that clad is arranged in a kind of line-type heat detector structure of multi-loop sectional monitoring temperature-sensing electrical signal also can be to constitute multiloop more than two or two, corresponding again change terminal resistance quantity, 3 sections of every section coated insulation material layers in two loops, it is every section 0. 5 times～a times of coating 2 sections of NTC characteristic material layers, 3 sections of every section coated insulation material layers in three loops, be every section 15 times～two times of coating 2 sections of NTC characteristic material layers, 3 sections of every section coated insulation material layers in four loops, be every section 25 times～three times of coating 2 sections of NTC characteristic material layers, how much by that analogy according to the loop.
The foregoing description 1 and embodiment 2, in a kind of line-type heat detector structure of multi-loop sectional monitoring temperature-sensing electrical signal, NTC characteristic material layer is NTC, the CTR characteristic insulation material layer of low resistance also; Insulation material layer can be NTC, the CTR characteristic insulation material layer of high value.
The foregoing description 1～2, in a kind of line-type heat detector structure of multi-loop sectional monitoring temperature-sensing electrical signal, can be again in conductive layer 4 inboards or the outside is parallel or stranded or twine as public pole, to make things convenient for connection.One or more conductor that increases can be a bare conductor, also can be the conductor that coats NTC characteristic material layer 2.
The foregoing description 1～2 when a kind of line-type heat detector of multi-loop sectional monitoring temperature-sensing electrical signal uses as rate-of-rise detector, can be combined into cable linear different constant temperature fire detector with any cable linear constant temperature fire detector of the prior art.
Claims (7)
1, a kind of line-type heat detector of multi-loop sectional monitoring temperature-sensing electrical signal is to be connected to form multiloop closed circuit signaling Acquisition Circuit with electrical signal detection device (6) and terminal resistance respectively by the temperature sensing cable two ends, it is characterized in that temperature sensing cable has the detecting conductor (1) more than two or two to constitute multiloop with public pole, the outer NTC characteristic material layer (2) that coats of every detecting conductor (1), section gap coated insulation material layer (3) again, the described NTC characteristic material layer (2) that coats more than two or two, the detecting conductor (1) of insulation material layer (3) is arranged with the clad interlace mode, can be parallel or stranded after the arrangement or twine and to be set together, wrapped then conductive layer (4), conductive layer (4) is as public pole, and extrusion molding external sheath layer (5) is made temperature sensing cable more at last.
2, the line-type heat detector of a kind of multi-loop sectional monitoring temperature-sensing electrical signal according to claim 1, the structure that it is characterized in that temperature sensing cable is: the outer segmentation respectively of the detecting conductor more than two or two (1) coats NTC characteristic material layer (2), insulation material layer (3), parallel or stranded or twine be set together after coated with conductive layer and external sheath layer again.
3, the line-type heat detector of a kind of multi-loop sectional monitoring temperature-sensing electrical signal according to claim 1 is characterized in that NTC characteristic material layer also NTC, the CTR characteristic insulation material layer of low resistance; Insulation material layer can be NTC, CTR, the ptc characteristics insulation material layer of high value.
4, the line-type heat detector of a kind of multi-loop sectional monitoring temperature-sensing electrical signal according to claim 1, it is characterized in that can be parallel, stranded in conductive layer (4) inboard or the outside again, twine one or more conductor.
5, the line-type heat detector of a kind of multi-loop sectional monitoring temperature-sensing electrical signal according to claim 1, it is characterized in that the outer NTC characteristic material layer (2) that coats respectively of detecting conductor (1), after distinguishing section gap coated insulation material layer (3) again, distinguish the coated with conductive layer again, coat external sheath layer after parallel or stranded or winding is set together.
6, the line-type heat detector of a kind of multi-loop sectional monitoring temperature-sensing electrical signal according to claim 1, its feature also be in the temperature sensing cable in conductive layer (4) or outside increase by one or an above detecting conductor (1) as public pole.
7, the line-type heat detector of a kind of multi-loop sectional monitoring temperature-sensing electrical signal according to claim 1, it is characterized in that in the temperature sensing cable in conductive layer (4) or outside increase and coat NTC characteristic material layer (2) detecting conductor (1) more than one or one as public pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201389360U CN201262774Y (en) | 2008-05-15 | 2008-10-13 | Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820012691.7 | 2008-05-15 | ||
| CN200820012691 | 2008-05-15 | ||
| CNU2008201389360U CN201262774Y (en) | 2008-05-15 | 2008-10-13 | Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal |
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| Publication Number | Publication Date |
|---|---|
| CN201262774Y true CN201262774Y (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201389360U Expired - Fee Related CN201262774Y (en) | 2008-05-15 | 2008-10-13 | Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996466A (en) * | 2010-11-11 | 2011-03-30 | 李萍 | Line-type temperature sensor |
| CN105489303A (en) * | 2014-09-18 | 2016-04-13 | 瑞侃电子(上海)有限公司 | Cable and manufacturing method therefor, circuit protector and manufacturing method therefor, and load circuit |
| CN106355813A (en) * | 2016-11-01 | 2017-01-25 | 黄继洲 | Multi-parameter composite adaptive-environment constant-temperature and rate-of-rise fixed temperature linear thermal detector |
-
2008
- 2008-10-13 CN CNU2008201389360U patent/CN201262774Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996466A (en) * | 2010-11-11 | 2011-03-30 | 李萍 | Line-type temperature sensor |
| CN105489303A (en) * | 2014-09-18 | 2016-04-13 | 瑞侃电子(上海)有限公司 | Cable and manufacturing method therefor, circuit protector and manufacturing method therefor, and load circuit |
| CN106355813A (en) * | 2016-11-01 | 2017-01-25 | 黄继洲 | Multi-parameter composite adaptive-environment constant-temperature and rate-of-rise fixed temperature linear thermal detector |
| CN106355813B (en) * | 2016-11-01 | 2018-11-23 | 黄继洲 | The fixed temperature of the compound adaptive environment of multi-parameter, different constant temperature line-type heat detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20131013 |