CN201138504Y - Parallel line type temperature-sensing fire disaster detector with discrete temperature sensing switch serially connected with resistor - Google Patents
Parallel line type temperature-sensing fire disaster detector with discrete temperature sensing switch serially connected with resistor Download PDFInfo
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- CN201138504Y CN201138504Y CNU2008200100033U CN200820010003U CN201138504Y CN 201138504 Y CN201138504 Y CN 201138504Y CN U2008200100033 U CNU2008200100033 U CN U2008200100033U CN 200820010003 U CN200820010003 U CN 200820010003U CN 201138504 Y CN201138504 Y CN 201138504Y
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Abstract
The utility model relates to a discrete temperature-sensitive switch series resistance parallel connection linear temperature sensitive fire detector. The technical scheme adopted is: the utility model consists of a micro-junction box and a temperature sensitive cable; the temperature sensitive cable is respectively connected with a plurality of temperature sensitive elements by every 0.2 to 1m on two strips of conductors with a length of 20 to 200m; the temperature sensitive elements are that double metal temperature switches are connected in series with resistances of different resistance values; the conductors can be bare conductors and are mutually parallel or covered with insulating protective sleeve; the two conductors are hinged between every two temperature sensitive elements or one of the conductors is a core-shaped conductor and the other conductor is a sleeve-shaped conductor; the core-shaped conductor is coaxially sheathed in the sleeve-shaped conductor; an insulating layer is arranged between the two conductors; the utility model can realize fire detection alarm, accurately measure the position of an alarm point and can simultaneously distinguish a fire alarm from a short circuit fault, can further improve the practicability and reliability of the detector and has great improvements compared with the prior art.
Description
Technical field:
The utility model relates to the fire detecting and alarm device, the particularly a kind of parallel line-type heat detector of discrete temperature-sensitive switch resistance in series that can accurately measure the alarm set point position.
Background technology:
Parallel connection double metal temperature switch formula line-type heat detector of the prior art is made up of a plurality of double metal temperature switch in parallel between two detection leads.Under the normal temperature conditions, all double metal temperature switch open circuit is considered as not alarm condition of detector, when a certain section of heat fire detector is heated the temperature that reaches certain, and the double metal temperature switch closure in this section, detector sends alerting signal.Because double metal temperature switch reaches switching signal of output behind the operating temperature, and the output signal of each double metal temperature switch action on the detector is identical, so the accurate alarm set point of position locator, application brings a lot of inconvenience to engineering.In addition, the switching signal of double metal temperature switch warning output is identical with the short trouble signal that the short circuit of two detection leads is produced, can't distinguish, so can't satisfy the requirement that standard GB 16280-2005 " line-type heat detector " standard is revised single second for No. 1, this explicitly calls for line-type heat detector not report into short trouble by mistake fire alarm.
Summary of the invention:
In order to address the above problem, the utility model proposes the parallel line-type heat detector of a kind of discrete temperature-sensitive switch resistance in series, can realize fire detecting and alarm, accurately measure the alarm set point position, simultaneously fire alarm and line short fault can be distinguished again, the practicality and the reliability of detector can be further improved.
The utility model is to adopt following technical proposals to realize: the parallel line-type heat detector of a kind of discrete temperature-sensitive switch resistance in series, form by microcomputer terminal box and temperature sensing cable, it is characterized in that temperature sensing cable is that the distance every 0.2～1m is distinguished a plurality of temperature sensing elements in parallel on the lead of two length 20～200m, described temperature sensing element is by the resistance of different resistances of double metal temperature switch series connection.
Described lead can be a bare conductor, and two leads are parallel to each other.
Described lead can also be the lead that is covered with insulating sheath, and two leads kink between per two temperature sensing elements.
Described two leads can also be that one of them is a core shape lead, and another is the shell-like lead, and core shape lead is coaxial to be enclosed within the shell-like lead, is provided with insulation course between two leads.
The parallel line-type heat detector of described discrete temperature-sensitive switch resistance in series also comprises an oversheath, in oversheath is coated on temperature sensing cable.
In actual applications, the resistance of the resistance of connecting on each temperature sensing element is all inequality.
The beneficial effects of the utility model are:
1, has recoverable characteristic.Double metal temperature switch has recoverable characteristics, and after temperature sensing cable was heated double metal temperature switch action warning, along with the reduction of environment temperature, double metal temperature switch can return to normal operating conditions.
2, accurately measure the position of cable alarm set point.Since on temperature sensing cable every 0.2～1m temperature sensing element in parallel, and each temperature sensing element is by the connect resistance of different resistances of double metal temperature switch, therefore the resistance of each temperature sensing element is different, so the alarm current of different alarm set points is all different, the microcomputer terminal box just can be measured the particular location of alarm set point exactly according to the size of current that collects.
3, can distinguish cable short circuit fault and fire alarm, satisfy request of national standard.Double metal temperature switch has been connected behind the resistance, and alarm current and lead short-circuit current have tangible difference, thereby make the microcomputer terminal box can identify fire alarm and cable short circuit, make detector can satisfy the national standard requirement.
Therefore, the utility model can be realized fire detecting and alarm, accurately measures the alarm set point position, can distinguish fire alarm and line short fault again simultaneously, can further improve the practicality and the reliability of detector, and more existing technology all improves a lot.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is the structural representation of the utility model embodiment 3.
Embodiment:
As shown in Figure 1:
The parallel line-type heat detector of discrete temperature-sensitive switch resistance in series is made up of microcomputer terminal box 2 and temperature sensing cable; Temperature sensing cable is the bare conductor 1 with two parallel equidistant, a plurality of temperature sensing elements in parallel on the lead 1, temperature sensing element is the resistance 4 of the different resistances of double metal temperature switch 3 series connection, be that resistance R 1, R2, R3......Rn are the resistance of different resistances, be coated on together then in the insulation oversheath (not showing among the figure) and make, the diameter of lead is φ 0.5mm～φ 2.5mm, and length is 20～200m, temperature sensing element be spaced apart 0.2～1m.
In the working environment of the parallel line-type heat detector of discrete temperature-sensitive switch resistance in series in its permission, double metal temperature switch becomes the high resistant off-state, and no current passes through between two leads of cable, and the microcomputer terminal box is not sent fire alarm signal; When the double metal temperature switch on the temperature sensing cable is experienced environment temperature above its operating temperature, switch closure, flow through alarm current on resistance, output constant temperature fire alarm signal calculated the alarm set point position according to the alarm current size simultaneously after the microcomputer terminal box was gathered this current signal.When two lead short circuits, the resistance between two leads is zero, and the electric current that flows through between two leads is far longer than alarm current, and the microcomputer terminal box is gathered output short-circuit fault-signal behind this current signal.
As shown in Figure 2: the parallel line-type heat detector of discrete temperature-sensitive switch resistance in series, form by microcomputer terminal box 2 and temperature sensing cable; Temperature sensing cable is with a plurality of temperature sensing elements in parallel on two leads 1 that are covered with insulating sheath, two leads kink between per two temperature sensing elements, temperature sensing element is the resistance 4 of the different resistances of double metal temperature switch 3 series connection, be coated on together then in the insulation oversheath (not showing among the figure) and make, the diameter of lead is φ 0.5mm～φ 2.5mm, length is 20～200m, temperature sensing element be spaced apart 0.2～1m.
As shown in Figure 3: the parallel line-type heat detector of discrete temperature-sensitive switch resistance in series, form by microcomputer terminal box 2, temperature sensing cable; Temperature sensing cable is with a core shape lead 5,, a shell-like lead 6, article two, wire sleeve is fitted together the formation coaxial configuration, article two, be provided with insulation course 7 between the lead, article two, a plurality of temperature sensing elements in parallel between the lead, temperature sensing element are the resistance 4 of the different resistances of double metal temperature switch 3 series connection, are coated on together then in the insulation oversheath (not showing among the figure) to make, the length of lead is 20～200m, temperature sensing element be spaced apart 0.2～1m.
Claims (5)
1, the parallel line-type heat detector of a kind of discrete temperature-sensitive switch resistance in series, form by microcomputer terminal box and temperature sensing cable, it is characterized in that temperature sensing cable is that the distance every 0.2～1m is distinguished a plurality of temperature sensing elements in parallel on the lead of two length 20～200m, described temperature sensing element is by the resistance of different resistances of double metal temperature switch series connection.
2, according to the parallel line-type heat detector of the described discrete temperature-sensitive switch resistance in series of claim 1, it is characterized in that described lead is a bare conductor, two leads are parallel to each other.
3, according to the parallel line-type heat detector of the described discrete temperature-sensitive switch resistance in series of claim 1, it is characterized in that described lead is the lead that is covered with insulating sheath, two leads kink between per two temperature sensing elements.
4, according to the parallel line-type heat detector of the described discrete temperature-sensitive switch resistance in series of claim 1, it is characterized in that described two leads, one of them is a core shape lead, and another is the shell-like lead, core shape lead is coaxial to be enclosed within the shell-like lead, is provided with insulation course between two leads.
5, according to the parallel line-type heat detector of the described discrete temperature-sensitive switch resistance in series of claim 1, it is characterized in that also comprising an oversheath, in oversheath is coated on temperature sensing cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200100033U CN201138504Y (en) | 2008-01-02 | 2008-01-02 | Parallel line type temperature-sensing fire disaster detector with discrete temperature sensing switch serially connected with resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200100033U CN201138504Y (en) | 2008-01-02 | 2008-01-02 | Parallel line type temperature-sensing fire disaster detector with discrete temperature sensing switch serially connected with resistor |
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| CN201138504Y true CN201138504Y (en) | 2008-10-22 |
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| CNU2008200100033U Expired - Fee Related CN201138504Y (en) | 2008-01-02 | 2008-01-02 | Parallel line type temperature-sensing fire disaster detector with discrete temperature sensing switch serially connected with resistor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877162B (en) * | 2009-04-30 | 2012-08-22 | 台湾新光保全股份有限公司 | Security system |
| CN103198602A (en) * | 2012-03-06 | 2013-07-10 | 曾学义 | Line type temperature sensing fire detector and alarm method thereof |
| CN103489277A (en) * | 2013-09-26 | 2014-01-01 | 胡亨华 | Fire early-warning system used for monitoring resistance parameters of electrical circuit online |
| CN104198075A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Recoverable type linear temperature detecting system |
| CN104732741A (en) * | 2015-01-28 | 2015-06-24 | 上海电控研究所 | Method and device for detecting fire alarm system based on linear flame sensor |
| CN110160666A (en) * | 2019-05-22 | 2019-08-23 | 中国船舶重工集团公司第七一九研究所 | A kind of radiation resistance multi-point temperature measurement sensor |
| CN111313327A (en) * | 2020-04-02 | 2020-06-19 | 沈阳美宝控制有限公司 | Handheld intelligent electric line parameter inspection device, system and method |
| CN114639882A (en) * | 2022-03-07 | 2022-06-17 | 广州鹏辉能源科技股份有限公司 | Battery package thermal runaway protection system |
-
2008
- 2008-01-02 CN CNU2008200100033U patent/CN201138504Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877162B (en) * | 2009-04-30 | 2012-08-22 | 台湾新光保全股份有限公司 | Security system |
| CN103198602A (en) * | 2012-03-06 | 2013-07-10 | 曾学义 | Line type temperature sensing fire detector and alarm method thereof |
| CN103489277A (en) * | 2013-09-26 | 2014-01-01 | 胡亨华 | Fire early-warning system used for monitoring resistance parameters of electrical circuit online |
| CN103489277B (en) * | 2013-09-26 | 2015-08-26 | 胡亨华 | The fire early-warning system of on-line monitoring electric wiring resistance parameter |
| CN104198075A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Recoverable type linear temperature detecting system |
| CN104732741A (en) * | 2015-01-28 | 2015-06-24 | 上海电控研究所 | Method and device for detecting fire alarm system based on linear flame sensor |
| CN110160666A (en) * | 2019-05-22 | 2019-08-23 | 中国船舶重工集团公司第七一九研究所 | A kind of radiation resistance multi-point temperature measurement sensor |
| CN111313327A (en) * | 2020-04-02 | 2020-06-19 | 沈阳美宝控制有限公司 | Handheld intelligent electric line parameter inspection device, system and method |
| CN111313327B (en) * | 2020-04-02 | 2024-04-19 | 沈阳美宝控制有限公司 | Handheld intelligent electrical circuit parameter inspection device, system and method |
| CN114639882A (en) * | 2022-03-07 | 2022-06-17 | 广州鹏辉能源科技股份有限公司 | Battery package thermal runaway protection system |
| CN114639882B (en) * | 2022-03-07 | 2024-04-16 | 广州鹏辉能源科技股份有限公司 | Battery Bao Re runaway protection system |
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| Date | Code | Title | Description |
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| 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: 20081022 Termination date: 20110102 |