CN207731439U - A kind of multi signal beyond-retrieve-type cable-type line-type heat fire detector - Google Patents
A kind of multi signal beyond-retrieve-type cable-type line-type heat fire detector Download PDFInfo
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- CN207731439U CN207731439U CN201721540253.3U CN201721540253U CN207731439U CN 207731439 U CN207731439 U CN 207731439U CN 201721540253 U CN201721540253 U CN 201721540253U CN 207731439 U CN207731439 U CN 207731439U
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- 239000004020 conductor Substances 0.000 claims abstract description 111
- 238000012545 processing Methods 0.000 claims abstract description 46
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 238000011045 prefiltration Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 230000006870 function Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
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Abstract
The utility model is related to a kind of multi signal beyond-retrieve-type cable-type line-type heat fire detectors, including signal processing unit, termination box and sensing unit, one end of the sensing unit is electrically connected with termination box, and the other end of the sensing unit is electrically connected with the signal processing unit；The sensing unit is temperature-sensitive cable, and the temperature-sensitive cable includes the first conductor wire core, the second conductor wire core and third conductor wire core；It is provided with first resistor and second resistance in the termination box；First conductor wire core, second conductor wire core and third conductor wire core periphery are enclosed with soluble insulating layer respectively, and three conductor wire core peripheries are enclosed with shielded layer, and the shielded layer is provided with insulating outer protective cover；At least one is elastic conductor in three conductor wire cores, and conductor wire core is separated by using the soluble insulating layer of package between any two.The utility model can effectively detect the sensing unit conductor short-circuit conditions of heat fire detector, and send out short-circuit alarming signal in time.
Description
Technical field
The utility model is related to fire detecting and alarm technical fields in safety engineering discipline, and in particular to a kind of multi signal is not
Renewable type cable linear temperature sensing fire detector.
Background technology
Fire detector is detected to scene in fire automatic alarm system, the equipment for finding fire.Fire
Detector is system " sense organ ", effect be monitor environment in either with or without fire generation.Once having fire behavior, just
The feature physical quantity of fire, such as temperature, smog, gas and radiation light intensity are converted into electric signal, and acted immediately to fire
Alarm controller sends alarm signal.
In traditional beyond-retrieve-type cable-type line-type heat fire detector, when temperature sensing part is heated and reaches warning level
When value, the elastic conductor of solubility insulation melting layer, soluble insulating layer package mutually leans under the action of itself is twisted power
Closely, and the short circuit that contacts with each other, signal processing unit receives short-circuit signal at this time, sends out fire alarm information.Such type of alarm without
Method meets the sensing unit conductor two-by-two short-circuit requirement of reporting failure of the new national standard for cable linear temperature sensing fire detector.
Utility model content
In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art, providing a kind of multi signal can not be extensive
Compound cable linear temperature sensing fire detector, this detector can effectively detect the sensing unit conductor of heat fire detector
Short-circuit conditions, and short-circuit alarming signal is sent out in time.
In order to achieve the above object, the utility model adopts the following technical solution：A kind of multi signal beyond retrievable cable formula line
Sensing fire detector, including signal processing unit, termination box and sensing unit, one end of the sensing unit and termination box
Electrical connection, the other end of the sensing unit are electrically connected with the signal processing unit；
The sensing unit is temperature-sensitive cable, and the temperature-sensitive cable includes the first conductor wire core, the second conductor wire core and the
Three conductor wire cores；It is provided with first resistor and second resistance in the termination box；
One end of the first resistor is electrically connected with one end of first conductor wire core, the other end of the first resistor
It is electrically connected with the first end of the second resistance, the other end of the second resistance and one end of the third conductor wire core are electrically connected
It connects；One end of second conductor wire core is connected electrically between the first resistor and second resistance；
The other end of first conductor wire core, the other end of second conductor wire core and the third conductor wire core
The other end is respectively electrically connected on the signal processing unit；
First conductor wire core, second conductor wire core and third conductor wire core periphery are enclosed with solvable respectively
Property insulating layer, at least one is elastic conductor in three conductor wire cores, and conductor wire core is between any two using the solubility of package
Insulating layer is separated by.
Further, three conductor wire core peripheries are enclosed with shielded layer, and insulating outer protective cover is provided on the shielded layer.
Further, it is described including signal processing unit include CPU processor, pre-filter circuit, bleeder circuit,
Analog to digital conversion circuit, output circuit and power module；
The input terminal of the pre-filter circuit is electrically connected with the other end of the sensing unit, the pre-filter circuit
Output end be electrically connected with the input terminal of the bleeder circuit, the output end of the bleeder circuit and analog-digital conversion circuit as described
Input terminal is electrically connected, and the output end of analog-digital conversion circuit as described is electrically connected with the input terminal of the CPU processor, at the CPU
The output end of reason device is electrically connected with the storage circuit；
The power module is used for as the CPU processor, the pre-filter circuit, the bleeder circuit, the mould
Number conversion circuit, the display circuit, the storage circuit, the output circuit and input circuit power supply.
Further, the signal processing unit further includes display circuit, storage circuit and input circuit；The display electricity
Road, the storage circuit and the input circuit are electrically connected with the output end of the CPU processor respectively.
Further, its Vicat softening point of the soluble insulating layer of at least two conductor wire core outer wrappings is identical.
Further, its Vicat softening point of the soluble insulating layer of at least two conductor wire core outer wrappings is close, approximate temperature
Angle value is between ± 10 degrees Celsius.
Further, its Vicat softening point of the soluble insulating layer of conductor wire core outer wrapping is between 50 to 250 degree.
Further, the selection of the conductor wire core is nickel-titanium alloy material, Fe-based shape memory alloy material, copper-based memory conjunction
One kind or arbitrary combination of golden material and carbon spring steel.
Further, further include power transfer relay, the output end of the power transfer relay and the CPU processor is electrically connected
It connects.Fault alarm threshold value is preset in the CPU processor, the signal processing unit monitors three conductor wire cores of sensing unit
In arbitrary two short circuits when, the fault-signal of trigger signal processing unit, power transfer relay action.
Further, further include the fire alarm actuating of relay, the output of the fire alarm actuating of relay and the CPU processor
End electrical connection.Fire alarm threshold value is preset in the CPU processor, when environment temperature increases so that soluble insulating layer melts
Change, more conductor wire cores under the action of itself is twisted power all short circuit, the fire alarm of trigger signal processing unit, fire alarm after
Electric appliance acts.
The utility model uses above technical scheme, and one end of sensing unit is electrically connected with termination box, sensing unit
The other end is electrically connected with signal processing unit；First conductor wire core, second conductor wire core and the third conductor wire
Core periphery is enclosed with soluble insulating layer respectively, and three conductor wire core peripheries are enclosed with shielded layer, are provided in the shielded layer
Insulating outer protective cover；At least one is elastic conductor in three conductor wire cores, and conductor wire core is between any two using the solvable of package
Property insulating layer is separated by.In the utility model when normal operating condition, state of insulation, signal processing unit are between three conducting wires
When monitoring arbitrary two short circuits of three conductor wire cores of sensing unit, the fault-signal of trigger signal processing unit, power transfer relay
Action.When environment temperature increases, and reaches alarm threshold value, solubility insulation melting layer, more conductor wire cores are twisted at itself
Under the action of power, whole is short-circuit, at this time the fire alarm of trigger signal processing unit, the fire alarm actuating of relay.The utility model
The sensing unit conductor short-circuit conditions of heat fire detector can be effectively detected, and send out short-circuit alarming signal in time.
Description of the drawings
Fig. 1 is the utility model temperature-sensitive cable structure schematic diagram；
Fig. 2 is one of the utility model heat fire detector structural schematic diagram；
Fig. 3 is the utility model heat fire detector second structural representation.
In figure：1, the first conductor wire core；2, the second conductor wire core；3, third conductor wire core；4, soluble insulating layer；5, shield
Cover layer；6, insulating outer protective cover；R1, first resistor；R2, second resistance.
Specific implementation mode
Below by drawings and examples, the technical solution of the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model provides a kind of multi signal beyond-retrieve-type cable-type line-type heat detection
Device, including signal processing unit, termination box and sensing unit, one end of the sensing unit are electrically connected with termination box, described quick
The other end of sense component is electrically connected with the signal processing unit；The sensing unit is temperature-sensitive cable, the temperature-sensitive cable packet
Include the first conductor wire core, the second conductor wire core and third conductor wire core；First resistor and the second electricity are provided in the termination box
Resistance；One end of the first resistor is electrically connected with one end of first conductor wire core, the other end of the first resistor and institute
The first end electrical connection of second resistance is stated, the other end of the second resistance is electrically connected with one end of the third conductor wire core；
One end of second conductor wire core is connected electrically between the first resistor and second resistance；First conductor wire core it is another
The other end of one end, the other end of second conductor wire core and the third conductor wire core is respectively electrically connected at the signal
It manages on unit；First conductor wire core, second conductor wire core and third conductor wire core periphery are enclosed with respectively can
Dissolubility insulating layer, at least one is elastic conductor in three conductor wire cores, and conductor wire core is between any two using the solvable of package
Property insulating layer is separated by.
Three conductor wire core peripheries are enclosed with shielded layer and the shielded layer are provided with insulating outer protective cover in the present embodiment；It needs
To be remarked additionally to be three conductor wire core peripheries can not also be arranged shielded layer, directly wrap up oversheath.It can be according to practical need
It chooses whether that shielded layer is arranged in temperature-sensitive cable.
As shown in Fig. 2, as a preferred embodiment, including that signal processing unit includes described in the present embodiment
Include CPU processor, pre-filter circuit, bleeder circuit, analog to digital conversion circuit, output circuit, display circuit and power module；Institute
The input terminal for stating pre-filter circuit is electrically connected with the other end of the sensing unit, the output end of the pre-filter circuit with
The input terminal of the bleeder circuit is electrically connected, and the output end of the bleeder circuit and the input terminal of analog-digital conversion circuit as described are electrically connected
It connects, the output end of analog-digital conversion circuit as described is electrically connected with the input terminal of the CPU processor, the output of the CPU processor
End is electrically connected with the storage circuit；The output end of the CPU processor is connect with the display circuit；The power module is used
In for the CPU processor, the pre-filter circuit, the bleeder circuit, analog-digital conversion circuit as described, the display electricity
Road, the storage circuit, the output circuit and input circuit power supply.
As shown in figure 3, as a preferred embodiment, signal processing unit described in the utility model further includes showing
Show circuit, storage circuit and input circuit；The display circuit, the storage circuit and the input circuit respectively with it is described
The output end of CPU processor is electrically connected.
It should be added that the soluble insulating layer of conductor wire core outer wrapping at least two conductor wires in the present embodiment
Soluble insulating layer its Vicat softening point between core is same or similar, and approximate temperature value is between ± 10 degrees Celsius.Certainly it leads
Its Vicat softening point of the soluble insulating layer of wire core outer wrapping is typically chosen between 50 to 250 degree.
On the other hand, the selection of conductor wire core described in the present embodiment be nickel-titanium alloy material, Fe-based shape memory alloy material,
One kind or arbitrary combination of copper-based memory alloy material and carbon spring steel.
It should be added that three conductor wire cores being separated by by soluble insulating layer can be parallel lay configuration
It can be same spindle combine structure；The electric conductor that the soluble insulating layer of multiple package soft softening points of different dimensional card can also be arranged comes
Realize Multi-stage alarming；The short-circuit signal that signal processing unit passes through multiple cores of detection sensing unit（Also it is on-off model）
To determine failure or fire alarm；Signal processing unit can be by detection core resistance value and short to calculate by special algorithm
The position of road either fire alarm；
As shown in Fig. 2, heat fire detector provided in this embodiment further includes power transfer relay, the power transfer relay
It is electrically connected with the output end of the CPU processor.Fault alarm threshold value, the signal processing are preset in the CPU processor
When unit monitors arbitrary two short circuits in three conductor wire cores of sensing unit, the fault-signal of trigger signal processing unit, failure
The actuating of relay.
Further include the fire alarm actuating of relay in another aspect the present embodiment, the fire alarm actuating of relay at the CPU
Manage the output end electrical connection of device.Fire alarm threshold value is preset in the CPU processor, when environment temperature increases so that solubility
Insulate melting layer, all short circuits under the action of itself is twisted power of more conductor wire cores, the fire alarm letter of trigger signal processing unit
Number, the fire alarm actuating of relay.
For the utility model is described in further detail, now operation principle expansion is described as follows：
Utility model works principle is divided into no positioning function and has two kinds of positioning function, as shown in Fig. 2, without positioning function
Operation principle be：When normal operating condition, signal processing unit monitors the conductor wire core arbitrary two of sensing unit three or more
When root short circuit, the fault-signal of trigger signal processing unit, power transfer relay action.When environment temperature raising, and reach alarm
When threshold value, solubility insulation melting layer, more conductors are under the action of itself is twisted power, all short circuits, at this time at trigger signal
Manage the fire alarm of unit, the fire alarm actuating of relay.
As shown in figure 3, there is the operation principle of positioning function to be：When normal operating condition, signal processing unit sensing unit
When arbitrary two short circuits of three or more conductor wire cores, signal processing unit is determined by calculating the core resistance value of short-circuiting percentage
Short dot position, and shown by display, while the fault-signal of trigger signal processing unit, power transfer relay are dynamic
Make.When environment temperature increases, and reaches alarm threshold value, solubility insulation melting layer, more conductors are in the work for itself being twisted power
Under, all short circuits, signal processing unit determines fire alarm point position by calculating the core resistance value of short-circuiting percentage, and by aobvious
Show that device is shown, at this time the fire alarm of trigger signal processing unit, the fire alarm actuating of relay.
About the scheme with positioning, the method for calculating position is described as follows：
The resistance value of the certain electric conductor of diameter is the increase with length and linear change, measures the line of a certain length L1
Core resistance value R3, normal operating condition, signal processing unit are able to detect that terminal resistance R1, R2, when sensing unit certain point
When short circuit occurs for core, what the electric current in circuit will not be detected by R1, R2, signal processing unit is the core resistance value of short circuit
R4, distance L=R4*L1/R3 of actual short point；It, can be quick to prevent environment temperature from being had an impact to the resistivity of electric conductor
The length L2 of sense component is input to CPU by input circuit, and the length data of sensing unit is saved in storage circuit by CPU,
The state normally detected, the resistance value that signal processing unit detects are total resistance value of terminal resistance R1 or R2 and core resistance value R5
R6, R5=R6-R1 or R5=R6-R2, CPU calculate the variation of core resistance value R5 in normal detecting state, calculate core in real time
The real-time average resistance R7 of electric conductor is simultaneously stored, when short circuit occurs for a certain moment or when fire alarm, CPU by transferring on
The average resistance of the very thin electric conductor of one moment storage and the battery core resistance value detected are calculated, and obtain fire alarm or event
Hinder the position of point.
The utility model uses above technical scheme, and one end of sensing unit is electrically connected with termination box, sensing unit
The other end is electrically connected with signal processing unit；First conductor wire core, second conductor wire core and the third conductor wire
Core periphery is enclosed with soluble insulating layer respectively, and three conductor wire core peripheries are enclosed with shielded layer, are provided in the shielded layer
Insulating outer protective cover；At least one is elastic conductor in three conductor wire cores, and conductor wire core is between any two using the solvable of package
Property insulating layer is separated by.In the utility model when normal operating condition, signal processing unit monitors three conductor wire cores of sensing unit
When arbitrary two short circuits, the fault-signal of trigger signal processing unit, power transfer relay action.When environment temperature raising, and reach
When to alarm threshold value, solubility insulation melting layer, more conductor wire cores are under the action of itself is twisted power, all short circuits, at this time
The fire alarm of trigger signal processing unit, the fire alarm actuating of relay.The sensitivity of heat fire detector can effectively be detected
Component conductor short-circuit conditions, and short-circuit alarming signal is sent out in time.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of multi signal beyond-retrieve-type cable-type line-type heat fire detector, it is characterised in that：Including signal processing unit,
One end of termination box and sensing unit, the sensing unit is electrically connected with termination box, the other end of the sensing unit with it is described
Signal processing unit is electrically connected；
The sensing unit is temperature-sensitive cable, and the temperature-sensitive cable is led including the first conductor wire core, the second conductor wire core and third
Wire core；It is provided with first resistor and second resistance in the termination box；
One end of the first resistor is electrically connected with one end of first conductor wire core, the other end of the first resistor and institute
The first end electrical connection of second resistance is stated, the other end of the second resistance is electrically connected with one end of the third conductor wire core；
One end of second conductor wire core is connected electrically between the first resistor and second resistance；
The other end of first conductor wire core, the other end of second conductor wire core and the third conductor wire core it is another
End is respectively electrically connected on the signal processing unit；
First conductor wire core, second conductor wire core and third conductor wire core periphery are enclosed with soluble exhausted respectively
Edge layer, at least one is elastic conductor in three conductor wire cores, and conductor wire core is between any two using the soluble insulation of package
Layer is separated by.
2. multi signal beyond-retrieve-type cable-type line-type heat fire detector according to claim 1, it is characterised in that：Three
Root conductor wire core periphery is enclosed with shielded layer, and the shielded layer is provided with insulating outer protective cover.
3. multi signal beyond-retrieve-type cable-type line-type heat fire detector according to claim 1, it is characterised in that：Institute
It further includes display circuit, storage circuit, input circuit and CPU processor to state signal processing unit；The display circuit described is deposited
Storing up electricity road and the input circuit are electrically connected with the output end of the CPU processor respectively.
4. multi signal beyond-retrieve-type cable-type line-type heat fire detector according to claim 3, it is characterised in that：Institute
It includes pre-filter circuit, bleeder circuit, analog to digital conversion circuit, output circuit and power module to state including signal processing unit；
The input terminal of the pre-filter circuit is electrically connected with the other end of the sensing unit, the pre-filter circuit it is defeated
Outlet is electrically connected with the input terminal of the bleeder circuit, the input of the output end and analog-digital conversion circuit as described of the bleeder circuit
End electrical connection, the output end of analog-digital conversion circuit as described are electrically connected with the input terminal of the CPU processor, the CPU processor
Output end be electrically connected with the storage circuit；
The power module is used to turn for the CPU processor, the pre-filter circuit, the bleeder circuit, the modulus
Change circuit, the display circuit, the storage circuit, the output circuit and input circuit power supply.
5. multi signal beyond-retrieve-type cable-type line-type heat fire detector according to claim 4, it is characterised in that：Extremely
Its Vicat softening point of the soluble insulating layer of few two conductor wire core outer wrappings is identical.
6. multi signal beyond-retrieve-type cable-type line-type heat fire detector according to claim 5, it is characterised in that：Extremely
Its Vicat softening point of the soluble insulating layer of few two conductor wire core outer wrappings is close, approximate temperature value ± 10 degrees Celsius it
Between.
7. multi signal beyond-retrieve-type cable-type line-type heat fire detector according to claim 6, it is characterised in that：It leads
Its Vicat softening point of the soluble insulating layer of wire core outer wrapping is between 50 to 250 degree.
8. multi signal beyond-retrieve-type cable-type line-type heat fire detector according to claim 1, it is characterised in that：Institute
The selection for stating conductor wire core is nickel-titanium alloy material, Fe-based shape memory alloy material, copper-based memory alloy material and carbon spring steel
One kind or arbitrary combination.
9. special according to claim 3 to 7 any one of them multi signal beyond-retrieve-type cable-type line-type heat fire detector
Sign is：Further include power transfer relay, the power transfer relay is electrically connected with the output end of the CPU processor；At the CPU
Fault alarm threshold value is preset in reason device, the signal processing unit monitors arbitrary two short in three conductor wire cores of sensing unit
Lu Shi, the fault-signal of trigger signal processing unit, power transfer relay action.
10. according to claim 3 to 7 any one of them multi signal beyond-retrieve-type cable-type line-type heat fire detector,
It is characterized in that：Further include the fire alarm actuating of relay, the fire alarm actuating of relay and the output end of the CPU processor are electrically connected
It connects；It is preset with fire alarm threshold value in the CPU processor, makes soluble insulation melting layer when environment temperature increases, more
Conductor wire core all short circuits, the fire alarm of trigger signal processing unit, fire alarm relay under the action of itself is twisted power is dynamic
Make.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721540253.3U CN207731439U (en) | 2017-11-16 | 2017-11-16 | A kind of multi signal beyond-retrieve-type cable-type line-type heat fire detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721540253.3U CN207731439U (en) | 2017-11-16 | 2017-11-16 | A kind of multi signal beyond-retrieve-type cable-type line-type heat fire detector |
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| Publication Number | Publication Date |
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| CN207731439U true CN207731439U (en) | 2018-08-14 |
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ID=63088230
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705495A (en) * | 2017-11-16 | 2018-02-16 | 黄继洲 | A kind of multi signal beyond-retrieve-type cable-type line-type heat fire detector |
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2017
- 2017-11-16 CN CN201721540253.3U patent/CN207731439U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705495A (en) * | 2017-11-16 | 2018-02-16 | 黄继洲 | A kind of multi signal beyond-retrieve-type cable-type line-type heat fire detector |
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Effective date of registration: 20211210 Address after: 065201 plant 9b, No. 10, East Liushan street, Yingbin Road, Yanjiao Development Zone, Sanhe City, Langfang City, Hebei Province Patentee after: Hebei Woan Electronic Technology Co.,Ltd. Address before: 276100 No. 305, Dongtan village, Xincun Township, Tancheng County, Linyi City, Shandong Province Patentee before: Huang Jizhou |