CN201117048Y - Line-type temperature-sensing fire hazard detector with electronic switch component - Google Patents
Line-type temperature-sensing fire hazard detector with electronic switch component Download PDFInfo
- Publication number
- CN201117048Y CN201117048Y CNU2007200968446U CN200720096844U CN201117048Y CN 201117048 Y CN201117048 Y CN 201117048Y CN U2007200968446 U CNU2007200968446 U CN U2007200968446U CN 200720096844 U CN200720096844 U CN 200720096844U CN 201117048 Y CN201117048 Y CN 201117048Y
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- electronic switch
- switch assembly
- line
- linear temperature
- temperature sensor
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Abstract
The utility model discloses a linear temperature-sensing fire detector with an electronic switch element, which comprises a linear temperature-sensing element, a conversion box which is connected with one end of the linear temperature-sensing element and can realize the check of the temperature and or alarm electrical quantity (or sampled value) of the linear temperature-sensing element and an electronic switch element which is connected with the other end of the linear temperature-sensing element. The linear temperature-sensing fire detector with an electronic switch element which is provided by the utility model can utilize the closure of the electronic switch element to check whether the temperature-sensing element is in open circuit state, simultaneously, can ensure whether to send out fire alarm signals according to whether the electrical quantity (or sampled value) which is checked out by the conversion box exceeds the alarm valve value in the open state of the electrical switch, thereby, the state of the linear temperature-sensing element can be checked and judged at any moment, furthermore, the problems of lower reliability and sensibility of the alarm in the open circuit state can be eliminated.
Description
Technical field
The utility model relates to a kind of line-type heat detector, particularly relates to a kind of line-type heat detector that has electronic switch assembly.
Background technology
Line-type heat detector with NTC (negative temperature coefficient) characteristic commonly used at present is a kind of broad-spectrum fire detector, it is mainly by the linear temperature sensor with NTC characteristic, be connected an end of linear temperature sensor, can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected, and send the boxcar of fire alarm signal and be connected the other end of linear temperature sensor, and the terminal resistance that linear temperature sensor works the supervision effect of opening circuit is constituted according to the size of temperature or warning electrical quantity (or sampled value).Fig. 1 is linear temperature sensor transverse sectional view in the line-type heat detector with NTC characteristic of 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 the parallel NTC characteristic barrier layer 3 that is arranged between the detecting conductor 1,2.Fig. 2 is the line-type heat detector schematic equivalent circuit with NTC characteristic of prior art.Horizontal line 1 expression detecting conductor 1 among the figure, horizontal line 2 expression detecting conductors 2, variable resistor R represents NTC characteristic barrier layer 3, R1 represents that terminal resistance 4,5 then represents boxcar.When linear temperature sensor on the detector is heated and temperature when raising, be positioned at two detecting conductors 1 on it, the resistance value R of the NTC characteristic barrier layer 3 between 2 will diminish, boxcar 5 can detect this variation immediately, in case boxcar 5 detects detecting conductor 1, sampled value between 2 (being electrical quantity) reaches the alarming threshold value (this value is corresponding to alarm temperature) that detector is set, and it will send fire alarm signal immediately; Under normal circumstances, if linear temperature sensor opens circuit or coming off appears in terminal resistance 4, boxcar 5 will send failure alarm signal immediately.But, there is following point in the line-type heat detector with NTC characteristic of this prior art: though when linear temperature sensor open circuit or terminal resistance 4 when occurring coming off boxcar 5 can send failure alarm signal, but under open circuit situation appears in linear temperature sensor, in case breaking out of fire, this moment, whether detector still determined whether to send fire alarm signal above the alarming threshold value of setting under the original non-open circuit situation according to the sampled value of linear temperature sensor, the heating temperature that will occur linear temperature sensor like this surpasses the situation of just reporting a fire behind the alarm temperature, thereby greatly reduces the warning reliability and the sensitivity of detector.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of can be judged the state of linear temperature sensor at any time, and can improve the line-type heat detector that has electronic switch assembly of warning reliability and sensitivity.
In order to achieve the above object, the line-type heat detector that has electronic switch assembly that the utility model provides comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar that can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with and the parallel NTC characteristic barrier layer that is arranged between the detecting conductor; The described line-type heat detector that has electronic switch assembly also comprises the electronic switch assembly between two detecting conductors that are serially connected in linear temperature sensor one end.
The line-type heat detector that has electronic switch assembly that the utility model provides comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar that can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with and parallel NTC characteristic barrier layer and the fused insulating layers that are arranged between the detecting conductor, and in the detecting conductor at least one be elastic conductor or memory alloy wire; The described line-type heat detector that has electronic switch assembly also comprises the electronic switch assembly between two detecting conductors that are serially connected in linear temperature sensor one end.
One in described two detecting conductors is thermocouple wire.
Described electronic switch assembly is the relay-type switch module, and the control mode that opens and closes of relay is controlled in wireless mode or wired control mode.
Described electronic switch assembly is the diode-type switch module, and the control mode that opens and closes of diode is controlled by the electric power polarity conversion that is added in the diode two ends.
Described electronic switch assembly is a voltage stabilizing diode type switch module, and the control mode that opens and closes of voltage stabilizing diode is controlled by the supply voltage size that is added in the voltage stabilizing diode two ends.
Described electronic switch assembly is the triode type switch module, and the control mode that opens and closes of triode is controlled by the voltage swing that is added in transistor base.
Whether the closure of electronic switch assembly of can utilizing the line-type heat detector that has electronic switch assembly that the utility model provides detects linear temperature sensor and occurs opening circuit, whether the electrical quantity (or sampled value) that detects according to boxcar under the electronic switch assembly opening determines whether to send fire alarm signal above alarming threshold value simultaneously, like this not only can be at any time the state of linear temperature sensor be detected and judges, but also can eliminate warning reliability and the lower problem of sensitivity that occurs under the open circuit situation.
Description of drawings
Fig. 1 is linear temperature sensor transverse sectional view in the line-type heat detector with NTC characteristic of prior art.
Fig. 2 is the line-type heat detector schematic equivalent circuit with NTC characteristic of prior art.
The line-type heat detector that the has electronic switch assembly one example structure synoptic diagram that Fig. 3 provides for the utility model.
Another example structure synoptic diagram of the line-type heat detector that has electronic switch assembly that Fig. 4 provides for the utility model.
Embodiment
Below in conjunction with drawings and the specific embodiments the line-type heat detector that has electronic switch assembly that the utility model provides is elaborated.The parts identical with prior art adopt identical drawing reference numeral.
Embodiment 1:
As shown in Figure 3, the line-type heat detector that has electronic switch assembly that the utility model provides comprises linear temperature sensor, is connected an end of linear temperature sensor, boxcar 5 that can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected and the electronic switch assembly 8 that is connected the linear temperature sensor other end; Wherein linear temperature sensor comprises two parallel detecting conductors 1 that are provided with, 2 and the parallel detecting conductor 1 that is arranged on, NTC characteristic barrier layer 3 between 2, electronic switch assembly 8 then are serially connected between two detecting conductors 1,2 of the linear temperature sensor other end.Its principle of work is as follows:
1. alternately controlled the unlatching and closure of electronic switch assembly 8 by boxcar 5, promptly the output contact of electronic switch assembly 8 alternately is in and opens and closure state, and the time of unlatching and closure can freely be provided with.
2. when electronic switch assembly 8 is in closure state, boxcar 5 detects the resistance value of linear temperature sensors, when measure resistance when excessive (greater than the line body resistance of detecting conductor 1,2 and resistance value), detector sends failure alarm signal.
3. when electronic switch assembly 8 was in opening, boxcar 5 detected the resistance value of linear temperature sensor, and when the measurement resistance surpassed the alarming threshold value of setting under the open circuit situation, detector sent the fire alarm signal.
Embodiment 2:
As shown in Figure 4, the line-type heat detector that has electronic switch assembly that present embodiment provides comprises linear temperature sensor, is connected an end of linear temperature sensor, boxcar 5 that can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected and the electronic switch assembly 8 that is connected the linear temperature sensor other end; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with 1,2 and parallel NTC characteristic barrier layer 3 and the fused insulating layers 7 that are arranged between the detecting conductor 1,2, and in the detecting conductor 1,2 at least one be elastic conductor or memory alloy wire.The line-type heat detector that has electronic switch assembly that present embodiment provides is except that the structure of linear temperature sensor is different with a last embodiment, and other structure and principle of work are identical with a last embodiment.
Embodiment 3:
Present embodiment is with detecting conductor 1 on the linear temperature sensor among embodiment 1 and the embodiment 2, one in 2 is adopted the thermocouple wire material to make, constitute interim thermopair with another root, thereby form the linear temperature sensor with thermocouple characteristic, other structure and principle of work are then identical with above-mentioned two embodiment.
Described electronic switch assembly 8 can be following several mode, but is not limited thereto:
1) relay-type switch module, the control mode that opens and closes of relay can be controlled in wireless mode or wired control mode;
2) diode-type switch module, the opening and closing control mode and can control of diode by the electric power polarity conversion that is added in the diode two ends;
3) voltage stabilizing diode type switch module, the opening and closing control mode and can control of voltage stabilizing diode by the supply voltage size that is added in the voltage stabilizing diode two ends;
4) triode type switch module, the opening and closing control mode and can control of triode by the voltage swing that is added in transistor base.
In addition, described electronic switch assembly 8 can also cause boxcar 5 and is set together with boxcar 5 by lead.
Claims (12)
1. line-type heat detector that has electronic switch assembly, it comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar (5) that can be in real time the temperature of linear temperature sensor or warning electrical quantity or sampled value be detected; Wherein linear temperature sensor comprises two parallel detecting conductors (1,2) that are provided with and the parallel NTC characteristic barrier layer (3) that is arranged between the detecting conductor (1,2); It is characterized in that: the described line-type heat detector that has electronic switch assembly also comprises the electronic switch assembly (8) between two detecting conductors (1,2) that are serially connected in linear temperature sensor one end.
2. the line-type heat detector that has electronic switch assembly according to claim 1 is characterized in that: one in described two detecting conductors (1,2) is thermocouple wire.
3. the line-type heat detector that has electronic switch assembly according to claim 1, it is characterized in that: described electronic switch assembly (8) is the relay-type switch module, and the control mode that opens and closes of relay is controlled in wireless mode or wired control mode.
4. the line-type heat detector that has electronic switch assembly according to claim 1, it is characterized in that: described electronic switch assembly (8) is the diode-type switch module, and the control mode that opens and closes of diode is controlled by the electric power polarity conversion that is added in the diode two ends.
5. the line-type heat detector that has electronic switch assembly according to claim 1, it is characterized in that: described electronic switch assembly (8) is a voltage stabilizing diode type switch module, and the control mode that opens and closes of voltage stabilizing diode is controlled by the supply voltage size that is added in the voltage stabilizing diode two ends.
6. the line-type heat detector that has electronic switch assembly according to claim 1, it is characterized in that: described electronic switch assembly (8) is the triode type switch module, and the control mode that opens and closes of triode is controlled by the voltage swing that is added in transistor base.
7. line-type heat detector that has electronic switch assembly, it comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar (5) that can be in real time the temperature of linear temperature sensor or warning electrical quantity or sampled value be detected; Wherein linear temperature sensor comprises two parallel detecting conductors (1 that are provided with, 2) reach the parallel detecting conductor (1 that is arranged on, 2) NTC characteristic barrier layer (3) between and fused insulating layer (7), and in the detecting conductor (1,2) at least one be elastic conductor or memory alloy wire; It is characterized in that: the described line-type heat detector that has electronic switch assembly also comprises the electronic switch assembly (8) between two detecting conductors (1,2) that are serially connected in linear temperature sensor one end.
8. the line-type heat detector that has electronic switch assembly according to claim 7 is characterized in that: one in described two detecting conductors (1,2) is thermocouple wire.
9. the line-type heat detector that has electronic switch assembly according to claim 7, it is characterized in that: described electronic switch assembly (8) is the relay-type switch module, and the control mode that opens and closes of relay is controlled in wireless mode or wired control mode.
10. the line-type heat detector that has electronic switch assembly according to claim 7, it is characterized in that: described electronic switch assembly (8) is the diode-type switch module, and the control mode that opens and closes of diode is controlled by the electric power polarity conversion that is added in the diode two ends.
11. the line-type heat detector that has electronic switch assembly according to claim 7, it is characterized in that: described electronic switch assembly (8) is a voltage stabilizing diode type switch module, and the control mode that opens and closes of voltage stabilizing diode is controlled by the supply voltage size that is added in the voltage stabilizing diode two ends.
12. the line-type heat detector that has electronic switch assembly according to claim 7, it is characterized in that: described electronic switch assembly (8) is the triode type switch module, and the control mode that opens and closes of triode is controlled by the voltage swing that is added in transistor base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200968446U CN201117048Y (en) | 2007-07-23 | 2007-07-23 | Line-type temperature-sensing fire hazard detector with electronic switch component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200968446U CN201117048Y (en) | 2007-07-23 | 2007-07-23 | Line-type temperature-sensing fire hazard detector with electronic switch component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117048Y true CN201117048Y (en) | 2008-09-17 |
Family
ID=39991624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200968446U Expired - Lifetime CN201117048Y (en) | 2007-07-23 | 2007-07-23 | Line-type temperature-sensing fire hazard detector with electronic switch component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117048Y (en) |
-
2007
- 2007-07-23 CN CNU2007200968446U patent/CN201117048Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SURELAND INDUSTRIAL FIRE SAFETY CO., LTD Free format text: FORMER OWNER: ZHANG WEISHE Effective date: 20090710 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090710 Address after: BeiJing 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 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A linear temperature susceptibility fire detector with electronic switch component Effective date of registration: 20121010 Granted publication date: 20080917 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |
|
| CX01 | Expiry of patent term | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171114 Granted publication date: 20080917 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |