WO2021227454A1 - Temperature-sensing fire detection cable - Google Patents

Temperature-sensing fire detection cable Download PDF

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Publication number
WO2021227454A1
WO2021227454A1 PCT/CN2020/133727 CN2020133727W WO2021227454A1 WO 2021227454 A1 WO2021227454 A1 WO 2021227454A1 CN 2020133727 W CN2020133727 W CN 2020133727W WO 2021227454 A1 WO2021227454 A1 WO 2021227454A1
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WO
WIPO (PCT)
Prior art keywords
temperature
fuse
conductors
temperature control
detection
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PCT/CN2020/133727
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French (fr)
Chinese (zh)
Inventor
刘永青
胡贵宝
张锐
孙建宇
宋乐乐
蔺海峰
高波
吴迪
邱昕
侯凤
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江苏中利集团股份有限公司
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Publication of WO2021227454A1 publication Critical patent/WO2021227454A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables

Definitions

  • the utility model relates to a cable with temperature detection and alarm. On the basis of electric power supply and signal transmission, the utility model realizes self-protection for fire detection.
  • the working principle of smoke alarm or temperature control alarm is built-in light detection element or temperature sensing test element. Because it is installed one at a distance, it is impossible to continuously monitor and accurately locate the interior of the building.
  • the existing fire alarm cannot protect the signal transmission line or the power supply line.
  • the technical problem to be solved by the utility model is to provide a temperature-sensing fire detection cable which has the functions of temperature detection alarm, positioning, electric power supply, signal transmission, and self-protection at the same time.
  • the temperature-sensitive fire detection cable of the present invention includes two conductors with an insulating layer outside the conductors, and an insulating tape is connected between the insulating layers of the two conductors. Outer sheath.
  • a plurality of detection modules are arranged on the insulating tape at intervals, and both sides of the detection module have connection points, and the connection points are electrically connected with the conductor to supply power to the detection module.
  • the data of the detection module is transmitted to the conductor, and the data is transmitted through the conductor;
  • the detection module includes a temperature sensing element and a temperature control chip.
  • the temperature sensing element measures the temperature and transmits the measured temperature data to the temperature control chip.
  • the temperature control chip processes the received temperature data and transmits it through connection points and conductors.
  • the detection modules are connected in series by fuse wires. Specifically, the detection modules have welding contacts, and the fuse wires are welded on the welding contacts.
  • the temperature control chip has a fuse current monitoring module, and the fuse current monitoring module monitors the current flowing through the detection module in real time to obtain the on and off signals of the fuse current, and the temperature control chip processes and receives The conduction and disconnection signals are transmitted through connection points and conductors.
  • the two-core signal power cord is made into a strip structure, and the detection module is fixed in the middle of the two-core power cord by welding with the conductor.
  • the interval length of the detection module is 1 meter or other lengths, and the fuse is used to connect them Together.
  • the temperature-sensing fire detection cable can be continuously laid in the corresponding confined space as required, that is, there is a corresponding detector within 1m or other distances.
  • the temperature-sensing element will change the temperature
  • the signal is transmitted to the temperature control chip, and the temperature control chip processes the temperature signal, such as transmitting it to the terminal control device through a conductor, to achieve the purpose of alarming.
  • the temperature control chip of the feedback signal also has its own code, which can achieve the purpose of fire location.
  • the utility model integrates the temperature sensing element and the temperature control chip in the same detection module, and then installs them in the middle of the band-shaped signal power line as a whole.
  • the detection module and the signal power line conductor are connected together by welding, which not only effectively solves the power supply problem of the detection module, but also ensures that the detection module can work stably for a long time.
  • the signal power line is also used as a signal transmission carrier with small size and laying Convenient and other advantages.
  • the utility model uses a fuse wire to connect all the detection modules together.
  • the fuse wire is automatically disconnected, the conduction line is disconnected, and the temperature control chip is obtained.
  • the terminal control device cuts off the power supply of the entire line, thereby achieving the protection of the entire line Purpose.
  • a plurality of slots are provided on the insulating tape at intervals, and the detection module is placed in the slots.
  • the surface of the insulating tape has a C-shaped groove, and the fuse is installed in the C-shaped groove.
  • the insulating tape is provided with a fuse wire slot hole, and the fuse wire passes through the fuse wire slot hole.
  • the utility model connects the temperature sensing element, the temperature control chip and the fuse wire in the detection module (such as an integrated circuit board), and there are welding contacts for connecting conductors on both sides of the detection module. After being sheathed, both the temperature sensing element and the fuse wire can have good contact with the outer sheath, which facilitates the timely conduction of external temperature changes to the temperature sensing element and the fuse wire through the outer sheath.
  • the detection module slot is convenient for the installation of the detection module.
  • the fuse slot is opened between the two detection modules to facilitate the flow of the fuse after high temperature melting.
  • the C-shaped groove on the surface of the insulating tape can be used for the installation and fixing of the fuse.
  • the detection module and the signal power line are connected by welding contacts (connection points) reserved on both sides of the detection module and the insulated signal power line conductor spot welding connection; the detection module and the fuse are reserved before and after the detection module
  • the welding contacts and fuse links are spot welded.
  • the temperature sensing element and the temperature control chip are continuously laid at a distance of 1m (or other lengths) (up to 2km), they can be laid continuously in a long and narrow confined space without the help of other repeaters. , Real-time fire detection alarm and positioning in a confined space.
  • the utility model patent solves the problem of repeated laying of signal wires and power wires, with simple structure and convenient construction.
  • the outer sheath of the utility model patent is made of low-smoke halogen-free thermoplastic elastomer material with excellent high temperature resistance, flame retardant and thermal conductivity, which ensures that when laying in a confined space, the cable will neither prolong flame nor cause damage if a fire occurs. Personal injury is caused.
  • Figure 1 is a schematic diagram of a temperature-sensitive fire detection cable without a detection module installed.
  • Figure 2 is a top view of the detection module.
  • Figure 3 is a side view of the detection module.
  • Figure 4 is a schematic diagram of a temperature-sensitive fire detection cable with a detection module installed.
  • Figure 5 is a cross-sectional view of the temperature-sensitive fire detection cable.
  • the temperature-sensitive fire detection cable includes two conductors 1 with an insulating layer 2 outside the conductor 1, and an insulating tape 4 is connected between the insulating layers 2 of the two conductors 1.
  • the insulating tape 4 has an outer sheath 8 outside.
  • the outer sheath 8 is made of low-smoke halogen-free thermoplastic elastomer material with high temperature resistance, flame retardancy and excellent thermal conductivity, to ensure that when laying in a confined space, the cable will neither prolong fire nor cause personal injury if a fire occurs.
  • connection point 13 is spot-welded and electrically connected to the conductor 1 (the insulating layer of the conductor 1 is cut off) to supply power to the detection module.
  • the detection module includes a temperature sensing element 9 and a temperature control chip 11 (such as SW6015).
  • the temperature sensing element 9 measures the temperature conducted by the outer sheath 8 and transmits the measured temperature data to the temperature control chip 11.
  • the temperature control chip 11 processes the received temperature data and transmits it through the connection point 13 and the conductor 1, transmits the data of the detection module to the conductor 1, and transmits the data to the terminal control device through the conductor 1. That is, the temperature information data is transmitted to the terminal control device through the conductor 1 to achieve the purpose of alarming.
  • the temperature control chip 11 that feeds back the signal also has its own code, which can achieve the purpose of fire location.
  • the detection modules are connected in series through fuse wires 7, and both ends of the detection modules have welding contacts 12, and the fuse wires 7 are welded on the welding contacts 12.
  • the surface of the insulating tape 4 has a C-shaped groove 3, the fuse 7 is installed in the C-shaped groove 3, and the width of the groove is slightly smaller than the diameter of the fuse 7, and the fuse 7 can be automatically locked after being inserted. Prevent it from jumping out and affecting the appearance of the finished product.
  • the insulating tape 4 is provided with a fuse slot 6 through which the fuse 7 passes.
  • the temperature control chip 11 has a fuse current monitoring module that monitors the current flowing through the detection module of the fuse 7 in real time to obtain the on and off signals of the fuse 7 current, and the temperature control chip processes
  • the received on and off signals are transmitted through the connection point 13 and the conductor 1, that is, the data of the detection module is transmitted to the conductor 1, and the data is transmitted through the conductor 1.
  • the fuse 7 When the cable is working normally, the fuse 7 has a weak current (for example, both ends of the fuse 7 are connected to the terminal device, and the terminal device applies a low voltage to the fuse 7 to make the fuse 7 have a weak current) to realize the fuse 7. There is a weak current in the circuit connected in series with the detection module.
  • the fuse current monitoring module integrated current sensing device monitors the current of the fuse 7 flowing through the detection module in real time.
  • the temperature control chip 11 processes the disconnection signal of the fuse 7 and transmits it to the terminal control device through the signal power line (ie conductor 1), and the terminal control device disconnects the power supply of the entire line, thereby protecting the entire line the goal of.
  • the signal power line (ie, the conductor 1) can provide power to the temperature control chip 11, and can also be used as a signal line to transmit signals.
  • the temperature control chip 11 on the detection module transmits the disconnection signal of the fuse 7 to the terminal control device through the signal power line.
  • the terminal device using the cable of the utility model receives the fire detection alarm and positioning signals transmitted by the detection module through the conductor 1 of the cable of the utility model, and performs corresponding operations (such as disconnecting the power supply).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)

Abstract

A temperature-sensing fire detection cable, comprising two conductors (1), wherein insulating layers (2) are arranged outside the conductors (1); an insulating tape (4) is connected between the insulating layers (2); an outer sheath (8) is arranged outside the insulating layers (2) and the insulating tape (4); a plurality of detection modules are arranged at intervals on the insulating tape (4); the detection modules are electrically connected to the conductors (1); the detection modules each comprise a temperature sensing element (9) and a temperature control chip (11); the temperature sensing elements (9) measure the temperature and transmit measured temperature data to the temperature control chips (11); the temperature control chips (11) process the received temperature data and transmit the processed temperature data by means of connecting points (13) and the conductors (1); the detection modules are connected in series by means of a fuse wire (7); the temperature control chips (11) monitor, in real time, the current, flowing through the detection modules, of the fuse wire (7), so as to obtain switching-on and switching-off signals of the current of the fuse wire (7); and the temperature control chips (11) process the received switching-on and switching-off signals, and transmit the processed switching-on and switching-off signals by means of the connecting points (13) and the conductors (1). The cable has the functions of a temperature measurement alarm, locating, electric energy supply and signal transmission, self-protection, etc.

Description

感温火灾探测电缆Temperature sensing fire detection cable 技术领域Technical field
本实用新型涉及一种具备温度探测、报警的电缆，在电能供应及信号传输的基础上，对火灾探测，实现自我保护。The utility model relates to a cable with temperature detection and alarm. On the basis of electric power supply and signal transmission, the utility model realizes self-protection for fire detection.
背景技术Background technique
社会对防火安全的问题越来越重视，尤其是在火灾发生前的探测和预警，能有效的防止火灾蔓延，避免造成更大的人员伤害及财产损失。目前市场上常用独立式的光电烟雾报警器或者温度感应报警器，前者通过测定报警器所在区域内的烟雾浓度的变化来触发报警系统，后者是通过测定报警器所在区域内温度的变化来触发报警系统。这些独立式的报警器都存在以下缺点：The society pays more and more attention to the issue of fire safety, especially the detection and early warning before the fire occurs, which can effectively prevent the fire from spreading and avoid greater personal injury and property loss. At present, stand-alone photoelectric smoke alarms or temperature sensor alarms are commonly used in the market. The former triggers the alarm system by measuring the change in the smoke concentration in the area where the alarm is located, and the latter triggers the alarm system by measuring the temperature change in the area where the alarm is located. alarm system. These stand-alone alarms all have the following disadvantages:
1、烟雾报警器或温控报警器工作原理是内置通光探测元件或温感测试元件，由于其间隔一段距离安装一个，无法对建筑物内部进行连续监控及准确定位。1. The working principle of smoke alarm or temperature control alarm is built-in light detection element or temperature sensing test element. Because it is installed one at a distance, it is impossible to continuously monitor and accurately locate the interior of the building.
2、现有防火报警器多采用电池或电源线独立供电，然后再额外连接一根信号传输线，起到持续工作及报警信号传输的目的，但是该方式结构复杂，敷设繁琐。2. Existing fire alarms mostly use batteries or power cords for independent power supply, and then an additional signal transmission line is connected to achieve the purpose of continuous work and alarm signal transmission, but this method has a complex structure and cumbersome installation.
3、现有防火报警器无法对传输信号的线路或电能供应的线路进行保护。3. The existing fire alarm cannot protect the signal transmission line or the power supply line.
实用新型内容Utility model content
本实用新型所要解决的技术问题是提供一种同时具备温度探测报警、定位、电能供应及信号传输、自我保护等功能的感温火灾探测电缆。The technical problem to be solved by the utility model is to provide a temperature-sensing fire detection cable which has the functions of temperature detection alarm, positioning, electric power supply, signal transmission, and self-protection at the same time.
为解决上述技术问题，本实用新型的感温火灾探测电缆包括两根导体，所述导体外具有绝缘层，两根导体的绝缘层之间连接有绝缘带，所述绝缘层、绝缘带外具有外护套。In order to solve the above technical problems, the temperature-sensitive fire detection cable of the present invention includes two conductors with an insulating layer outside the conductors, and an insulating tape is connected between the insulating layers of the two conductors. Outer sheath.
在外护套内，沿导体的轴向，所述绝缘带上间隔设置有多个探测模块，所述探测模块的两侧均具有连接点，所述连接点与导体电连接，为探测模块供 电，并将探测模块的数据传输到导体上，通过导体传输数据；所述探测模块包括感温元件和温控芯片，所述感温元件测量温度，并将测量的温度数据传送给温控芯片，所述温控芯片处理接收的温度数据并通过连接点、导体传输。In the outer sheath, along the axial direction of the conductor, a plurality of detection modules are arranged on the insulating tape at intervals, and both sides of the detection module have connection points, and the connection points are electrically connected with the conductor to supply power to the detection module. The data of the detection module is transmitted to the conductor, and the data is transmitted through the conductor; the detection module includes a temperature sensing element and a temperature control chip. The temperature sensing element measures the temperature and transmits the measured temperature data to the temperature control chip. The temperature control chip processes the received temperature data and transmits it through connection points and conductors.
所述探测模块之间通过熔断丝串联，具体地，所述探测模块具有焊接触点，所述熔断丝焊接在焊接触点上。所述温控芯片具有熔断丝电流监控模块，所述熔断丝电流监控模块对熔断丝流经探测模块上的电流进行实时监控，获得熔断丝电流的导通、断开信号，温控芯片处理接收的导通、断开信号并通过连接点、导体传输。The detection modules are connected in series by fuse wires. Specifically, the detection modules have welding contacts, and the fuse wires are welded on the welding contacts. The temperature control chip has a fuse current monitoring module, and the fuse current monitoring module monitors the current flowing through the detection module in real time to obtain the on and off signals of the fuse current, and the temperature control chip processes and receives The conduction and disconnection signals are transmitted through connection points and conductors.
本实用新型将两芯信号电源线做成带状结构，通过与导体焊接的方式将探测模块固定在两芯电源线中间，探测模块的间隔长度为1米或其他长度,并用熔断丝将其连接在一起。该感温火灾探测电缆可以根据需要连续敷设在相应的密闭空间内部，即相当于1m或其他距离以内都有一个对应的探测器，当环境温度超过设定值80℃，感温元件会将温度信号传递到温控芯片，温控芯片会对温度信号进行处理，如通过导体传输给终端控制设备，达到报警目的，同时反馈信号的温控芯片自身也有编码，可以达到火灾定位的目的。In the utility model, the two-core signal power cord is made into a strip structure, and the detection module is fixed in the middle of the two-core power cord by welding with the conductor. The interval length of the detection module is 1 meter or other lengths, and the fuse is used to connect them Together. The temperature-sensing fire detection cable can be continuously laid in the corresponding confined space as required, that is, there is a corresponding detector within 1m or other distances. When the ambient temperature exceeds the set value of 80℃, the temperature-sensing element will change the temperature The signal is transmitted to the temperature control chip, and the temperature control chip processes the temperature signal, such as transmitting it to the terminal control device through a conductor, to achieve the purpose of alarming. At the same time, the temperature control chip of the feedback signal also has its own code, which can achieve the purpose of fire location.
本实用新型将感温元件和温控芯片集合在同一探测模块中，然后将其整体安装在带状信号电源线的中间。通过焊接方式将探测模块和信号电源线导体连接在一起，不仅有效的解决了探测模块供电问题，保证探测模块能长期稳定工作，同时该信号电源线也作为信号传输的载体，具有体积小、敷设方便的等优点。The utility model integrates the temperature sensing element and the temperature control chip in the same detection module, and then installs them in the middle of the band-shaped signal power line as a whole. The detection module and the signal power line conductor are connected together by welding, which not only effectively solves the power supply problem of the detection module, but also ensures that the detection module can work stably for a long time. At the same time, the signal power line is also used as a signal transmission carrier with small size and laying Convenient and other advantages.
本实用新型用熔断丝将所有的所有探测模块连接在一起，当环境温度超过感温火灾探测电缆允许的最高温度180℃时，熔断丝熔断自动断开，导通线路断开，温控芯片获取导通线路关断信号，温控芯片将熔断丝断路信号处理后通过信号电源线(即导体)传递给终端控制设备，终端控制设备断开整个线路的电能供应，进而达到对整个线路进行保护的目的。The utility model uses a fuse wire to connect all the detection modules together. When the ambient temperature exceeds the maximum temperature allowed by the temperature-sensing fire detection cable 180°C, the fuse wire is automatically disconnected, the conduction line is disconnected, and the temperature control chip is obtained. Turn on the line to turn off the signal, and the temperature control chip processes the fuse open signal and transmits it to the terminal control device through the signal power line (ie conductor). The terminal control device cuts off the power supply of the entire line, thereby achieving the protection of the entire line Purpose.
作为优选，所述绝缘带上间隔设置有多个槽孔，所述探测模块放置在槽孔内。Preferably, a plurality of slots are provided on the insulating tape at intervals, and the detection module is placed in the slots.
为了便于熔断丝的安装与固定，所述绝缘带表面具有C形槽，所述熔断丝安装在C形槽内。In order to facilitate the installation and fixation of the fuse, the surface of the insulating tape has a C-shaped groove, and the fuse is installed in the C-shaped groove.
为了便于熔断丝高温熔化后流动，在所述探测模块之间，绝缘带上开设有熔断丝槽孔，所述熔断丝穿过熔断丝槽孔。In order to facilitate the flow of the fuse wire after being melted at a high temperature, between the detection modules, the insulating tape is provided with a fuse wire slot hole, and the fuse wire passes through the fuse wire slot hole.
与现有技术相比，本实用新型的优点如下：Compared with the prior art, the advantages of this utility model are as follows:
1、本实用新型将感温元件、温控芯片及熔断丝连接在探测模块(如集成电路板)中，探测模块两侧留有连接导体用的焊接触点，该结构设计在挤包外护套后，感温元件和熔断丝都可以和外护套有良好的接触，便于外部温度变化及时通过外护套传导至感温元件及熔断丝。1. The utility model connects the temperature sensing element, the temperature control chip and the fuse wire in the detection module (such as an integrated circuit board), and there are welding contacts for connecting conductors on both sides of the detection module. After being sheathed, both the temperature sensing element and the fuse wire can have good contact with the outer sheath, which facilitates the timely conduction of external temperature changes to the temperature sensing element and the fuse wire through the outer sheath.
2、探测模块槽孔便于安装探测模块，两个探测模块中间开熔断丝槽孔便于熔断丝高温熔化后流动，同时绝缘带表面的C型槽可以用于熔断丝的安装与固定。2. The detection module slot is convenient for the installation of the detection module. The fuse slot is opened between the two detection modules to facilitate the flow of the fuse after high temperature melting. At the same time, the C-shaped groove on the surface of the insulating tape can be used for the installation and fixing of the fuse.
3、探测模块与信号电源线之间通过探测模块两侧预留的焊接触点(连接点)和剥离绝缘的信号电源线导体点焊连接；探测模块和熔断丝之间通过探测模块前后预留的焊接触点和熔断丝点焊连接。通过以上方式再配合信号电源线上预留的槽孔、C型槽构成一个紧密的整体。3. The detection module and the signal power line are connected by welding contacts (connection points) reserved on both sides of the detection module and the insulated signal power line conductor spot welding connection; the detection module and the fuse are reserved before and after the detection module The welding contacts and fuse links are spot welded. Through the above method, the slot holes and C-shaped slots reserved on the signal power line are combined to form a compact whole.
4、由于感温元件和温控芯片间隔1m(或其他长度)连续敷设(最长可达2km),故其可以在狭长的密闭空间内，不借助其它中继器的情况下大长度连续敷设，在密闭空间内进行实时的火灾探测报警及定位。4. Since the temperature sensing element and the temperature control chip are continuously laid at a distance of 1m (or other lengths) (up to 2km), they can be laid continuously in a long and narrow confined space without the help of other repeaters. , Real-time fire detection alarm and positioning in a confined space.
5、利用熔断丝将所有的所有探测模块连接在一起，并在两个集成电路板中间开熔断丝槽孔，当环境温度超过感温火灾探测电缆允许的最高温度(如180℃)时，熔断丝会在熔断丝槽孔内断开，从而对整个线路进行保护。5. Use fuses to connect all the detection modules together, and open a fuse slot in the middle of the two integrated circuit boards. When the ambient temperature exceeds the maximum temperature allowed by the temperature-sensing fire detection cable (such as 180°C), it will fuse The wire will be broken in the fuse wire slot to protect the entire circuit.
6、本实用新型专利解决了信号线和电源线的反复敷设的问题，结构简单，施工方便。6. The utility model patent solves the problem of repeated laying of signal wires and power wires, with simple structure and convenient construction.
7、本实用新型专利外护套采用耐高温、阻燃及导热性能优异的低烟无卤热塑性弹性体材料，保证密闭空间内敷设时，若发生火灾电缆既不会延燃，又不会对人身造成伤害。7. The outer sheath of the utility model patent is made of low-smoke halogen-free thermoplastic elastomer material with excellent high temperature resistance, flame retardant and thermal conductivity, which ensures that when laying in a confined space, the cable will neither prolong flame nor cause damage if a fire occurs. Personal injury is caused.
附图说明Description of the drawings
下面结合附图和具体实施方式对本实用新型作进一步详细的说明。In the following, the present utility model will be further described in detail with reference to the drawings and specific embodiments.
图1为没有安装探测模块的感温火灾探测电缆示意图。Figure 1 is a schematic diagram of a temperature-sensitive fire detection cable without a detection module installed.
图2为探测模块俯视图。Figure 2 is a top view of the detection module.
图3为探测模块侧视图。Figure 3 is a side view of the detection module.
图4为安装探测模块的感温火灾探测电缆示意图。Figure 4 is a schematic diagram of a temperature-sensitive fire detection cable with a detection module installed.
图5为感温火灾探测电缆剖面图。Figure 5 is a cross-sectional view of the temperature-sensitive fire detection cable.
具体实施方式Detailed ways
如图1-5所示，感温火灾探测电缆包括两根导体1，所述导体1外具有绝缘层2，两根导体1的绝缘层2之间连接有绝缘带4，所述绝缘层2、绝缘带4外具有外护套8。外护套8采用耐高温、阻燃及导热性能优异的低烟无卤热塑性弹性体材料，保证密闭空间内敷设时，若发生火灾电缆既不会延燃，又不会对人身造成伤害。As shown in Figures 1-5, the temperature-sensitive fire detection cable includes two conductors 1 with an insulating layer 2 outside the conductor 1, and an insulating tape 4 is connected between the insulating layers 2 of the two conductors 1. The insulating layer 2 , The insulating tape 4 has an outer sheath 8 outside. The outer sheath 8 is made of low-smoke halogen-free thermoplastic elastomer material with high temperature resistance, flame retardancy and excellent thermal conductivity, to ensure that when laying in a confined space, the cable will neither prolong fire nor cause personal injury if a fire occurs.
在外护套8内，沿导体1的轴向，所述绝缘带4上间隔1m设置一个槽孔5，槽孔5内安装探测模块，所述探测模块的两侧均具有连接点13，所述连接点13与导体1(导体1的绝缘层剖开)点焊电连接，为探测模块供电。In the outer sheath 8, along the axial direction of the conductor 1, a slot 5 is provided on the insulating tape 4 at an interval of 1 m. The connection point 13 is spot-welded and electrically connected to the conductor 1 (the insulating layer of the conductor 1 is cut off) to supply power to the detection module.
所述探测模块包括感温元件9和温控芯片11(如SW6015)，所述感温元件9测量外护套8传导的温度，并将测量的温度数据传送给温控芯片11。所述温控芯片11处理接收的温度数据并通过连接点13、导体1传输，将探测模块的数据传输到导体1上，通过导体1传输数据给终端控制设备。即通过导体1将温度信息数据传输给终端控制设备，达到报警目的，同时反馈信号的温控芯片11自身也有编码，可以达到火灾定位的目的。The detection module includes a temperature sensing element 9 and a temperature control chip 11 (such as SW6015). The temperature sensing element 9 measures the temperature conducted by the outer sheath 8 and transmits the measured temperature data to the temperature control chip 11. The temperature control chip 11 processes the received temperature data and transmits it through the connection point 13 and the conductor 1, transmits the data of the detection module to the conductor 1, and transmits the data to the terminal control device through the conductor 1. That is, the temperature information data is transmitted to the terminal control device through the conductor 1 to achieve the purpose of alarming. At the same time, the temperature control chip 11 that feeds back the signal also has its own code, which can achieve the purpose of fire location.
所述探测模块之间通过熔断丝7串联，探测模块的首尾均具有焊接触点12，所述熔断丝7焊接在焊接触点12上。所述绝缘带4表面具有C形槽3，所述熔断丝7安装在C形槽3内，槽口宽度略小于熔断丝7直径，熔断丝7放入后便可自动将其锁住，可避免其跳出影响成品外观。同时，在所述探测模块之间，绝缘带4上开设有熔断丝槽孔6，所述熔断丝7穿过熔断丝槽孔6。温控 芯片11具有熔断丝电流监控模块，所述熔断丝电流监控模块对熔断丝7流经探测模块上的电流进行实时监控，获得熔断丝7电流的导通、断开信号，温控芯片处理接收的导通、断开信号并通过连接点13、导体1传输，即将探测模块的数据传输到导体1上，通过导体1传输数据。The detection modules are connected in series through fuse wires 7, and both ends of the detection modules have welding contacts 12, and the fuse wires 7 are welded on the welding contacts 12. The surface of the insulating tape 4 has a C-shaped groove 3, the fuse 7 is installed in the C-shaped groove 3, and the width of the groove is slightly smaller than the diameter of the fuse 7, and the fuse 7 can be automatically locked after being inserted. Prevent it from jumping out and affecting the appearance of the finished product. At the same time, between the detection modules, the insulating tape 4 is provided with a fuse slot 6 through which the fuse 7 passes. The temperature control chip 11 has a fuse current monitoring module that monitors the current flowing through the detection module of the fuse 7 in real time to obtain the on and off signals of the fuse 7 current, and the temperature control chip processes The received on and off signals are transmitted through the connection point 13 and the conductor 1, that is, the data of the detection module is transmitted to the conductor 1, and the data is transmitted through the conductor 1.
电缆正常工作时，熔断丝7通有弱电流(如熔断丝7两端连接在终端设备上，终端设备给熔断丝7加上低电压，使熔断丝7上通有弱电流)，实现熔断丝7、探测模块串联的电路上通有弱电流。熔断丝电流监控模块(集成的电流感应装置)对熔断丝7流经探测模块上的电流进行实时监控。当外护套8环境的温度超过180℃时，温度通过外护套8传导至熔断丝7，导致熔断丝7熔断，熔断丝7、探测模块串联的电路上的弱电流消失，温控芯片11获取断开信号，温控芯片11将熔断丝7断路信号处理后通过信号电源线(即导体1)传递给终端控制设备，终端控制设备断开整个线路的电能供应，进而达到对整个线路进行保护的目的。When the cable is working normally, the fuse 7 has a weak current (for example, both ends of the fuse 7 are connected to the terminal device, and the terminal device applies a low voltage to the fuse 7 to make the fuse 7 have a weak current) to realize the fuse 7. There is a weak current in the circuit connected in series with the detection module. The fuse current monitoring module (integrated current sensing device) monitors the current of the fuse 7 flowing through the detection module in real time. When the ambient temperature of the outer sheath 8 exceeds 180°C, the temperature is conducted to the fuse 7 through the outer sheath 8, causing the fuse 7 to fuse, the fuse 7, and the weak current on the circuit connected in series with the detection module disappear, and the temperature control chip 11 To obtain the disconnection signal, the temperature control chip 11 processes the disconnection signal of the fuse 7 and transmits it to the terminal control device through the signal power line (ie conductor 1), and the terminal control device disconnects the power supply of the entire line, thereby protecting the entire line the goal of.
本实用新型中，信号电源线(即导体1)即可以为温控芯片11提供电能，又可以作为信号线传输信号。如，探测模块上的温控芯片11会将熔断丝7的断路信号通过信号电源线传递给终端控制设备。In the present invention, the signal power line (ie, the conductor 1) can provide power to the temperature control chip 11, and can also be used as a signal line to transmit signals. For example, the temperature control chip 11 on the detection module transmits the disconnection signal of the fuse 7 to the terminal control device through the signal power line.
使用本实用新型电缆的终端设备通过本实用新型电缆的导体1接收探测模块传输的火灾探测报警及定位等信号，并做出相应的操作(如断开电源)。The terminal device using the cable of the utility model receives the fire detection alarm and positioning signals transmitted by the detection module through the conductor 1 of the cable of the utility model, and performs corresponding operations (such as disconnecting the power supply).
上述实施例不以任何方式限制本实用新型，凡是采用等同替换或等效变换的方式获得的技术方案均落在本实用新型的保护范围内。The foregoing embodiments do not limit the present utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present utility model.

Claims (5)

  1. 感温火灾探测电缆，其特征在于包括两根导体，所述导体外具有绝缘层，两根导体的绝缘层之间连接有绝缘带，所述绝缘层、绝缘带外具有外护套；The temperature-sensitive fire detection cable is characterized by comprising two conductors with an insulating layer outside the conductors, an insulating tape connected between the insulating layers of the two conductors, and an outer sheath outside the insulating layer and the insulating tape;
    在外护套内，沿导体的轴向，所述绝缘带上间隔设置有多个探测模块，所述探测模块的两侧均具有连接点，所述连接点与导体电连接，为探测模块供电，并将探测模块的数据传输到导体上，通过导体传输数据；In the outer sheath, along the axial direction of the conductor, a plurality of detection modules are arranged on the insulating tape at intervals, and both sides of the detection module have connection points, and the connection points are electrically connected with the conductor to supply power to the detection module. And transmit the data of the detection module to the conductor, and transmit the data through the conductor;
    所述探测模块包括感温元件和温控芯片，所述感温元件测量温度，并将测量的温度数据传送给温控芯片，所述温控芯片处理接收的温度数据并通过连接点、导体传输；The detection module includes a temperature sensing element and a temperature control chip. The temperature sensing element measures temperature and transmits the measured temperature data to the temperature control chip. The temperature control chip processes the received temperature data and transmits it through connection points and conductors. ；
    所述探测模块之间通过熔断丝串联，所述温控芯片具有熔断丝电流监控模块，所述熔断丝电流监控模块对熔断丝流经探测模块上的电流进行实时监控，获得熔断丝电流的导通、断开信号，温控芯片处理接收的导通、断开信号并通过连接点、导体传输。The detection modules are connected in series with fuses. The temperature control chip has a fuse current monitoring module. The fuse current monitoring module monitors the current flowing through the detection module in real time to obtain the fuse current. On and off signals, the temperature control chip processes the received on and off signals and transmits them through connection points and conductors.
  2. 根据权利要求1所述的感温火灾探测电缆，其特征在于：所述绝缘带上间隔设置有多个槽孔，所述探测模块放置在槽孔内。The temperature-sensitive fire detection cable according to claim 1, wherein a plurality of slots are provided on the insulating tape at intervals, and the detection module is placed in the slot.
  3. 根据权利要求1所述的感温火灾探测电缆，其特征在于：所述绝缘带表面具有C形槽，所述熔断丝安装在C形槽内。The temperature-sensitive fire detection cable according to claim 1, wherein the surface of the insulating tape has a C-shaped groove, and the fuse wire is installed in the C-shaped groove.
  4. 根据权利要求1所述的感温火灾探测电缆，其特征在于：在所述探测模块之间，绝缘带上开设有熔断丝槽孔，所述熔断丝穿过熔断丝槽孔。The temperature-sensitive fire detection cable according to claim 1, characterized in that: between the detection modules, the insulating tape is provided with a fuse slot hole, and the fuse wire passes through the fuse slot hole.
  5. 根据权利要求1所述的感温火灾探测电缆，其特征在于：所述探测模块具有焊接触点，所述熔断丝焊接在焊接触点上。The temperature-sensitive fire detection cable according to claim 1, wherein the detection module has a welding contact, and the fuse wire is welded on the welding contact.
PCT/CN2020/133727 2020-05-11 2020-12-04 Temperature-sensing fire detection cable WO2021227454A1 (en)

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