CN201707753U - Combined-type electrical fire monitoring detector of residual current and temperature - Google Patents

Combined-type electrical fire monitoring detector of residual current and temperature Download PDF

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Publication number
CN201707753U
CN201707753U CN2010202306682U CN201020230668U CN201707753U CN 201707753 U CN201707753 U CN 201707753U CN 2010202306682 U CN2010202306682 U CN 2010202306682U CN 201020230668 U CN201020230668 U CN 201020230668U CN 201707753 U CN201707753 U CN 201707753U
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CN
China
Prior art keywords
module
residual current
temperature
power
pass filter
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Expired - Lifetime
Application number
CN2010202306682U
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Chinese (zh)
Inventor
姜龙
陈绪平
蔡守平
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ACREL CO., LTD.
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Shanghai Acrel Electric Co Ltd
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Priority to CN2010202306682U priority Critical patent/CN201707753U/en
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Publication of CN201707753U publication Critical patent/CN201707753U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a combined-type electrical fire monitoring detector of residual current and temperature, which comprises a temperature sensor module, a residual current transformer module, a voltage source module, a power down storage module, a signal pick-up module, a low-pass filter module, a center process unit, a key module, an LED display module, an LED indication module, an acousto-optic alarm module, a protection output module, a communication module and a power supply module, wherein the temperature sensor module, the residual current transformer module and the voltage source module are respectively connected with the signal pick-up module, the signal pick-up module is connected with the low-pass filter module, and the center process unit is respectively connected with the power down storage module, the low-pass filter module, the key module, the LED display module, the LED indication module, the protection output module, the protection output module and the communication module. Compared with the prior art, the combined-type electrical fire monitoring detector has the advantages of smaller volume, convenient mounting and checking, flexible preparation, convenient upgrade and reformation of an original system, higher integration level, and high reliability and the like.

Description

The modular electrical fire monitoring detector of a kind of residual current and temperature
Technical field
The utility model relates to a kind of fire monitoring detector, especially relates to the modular electrical fire monitoring detector of a kind of residual current and temperature.
Background technology
Along with the rapid growth of Chinese national economy, the increasing considerably of every profession and trade power consumption, the simultaneous electrical fire also presents the trend that rises year by year, and the country and people's the security of the lives and property has been caused grievous injury.Since with electric line in increase along with service time, perhaps with electric line transship for a long time, overvoltage operation, catabiosis in various degree will appear in circuit, can cause the generation of leaky like this, and bring out electrical fire.Simultaneously, electric leakage can cause line insulation aging again, and so hidden danger is ascending, vicious cycle.And finally the leading because of mostly to temperature of fire, and since the wiring loose contact, reasons such as overload, and cable and joint thereof are very easily heated up too high.Therefore effectively control the electrical fire that factors such as electric leakage, excess temperature are drawn, most important to current fire-fighting work." Code for fire protection design of high rise buildings " (GB50045-2005) standard the occasion of Electric Leakage Fire Alarm need to be installed, prevent the generation of electrical fire.
At present, up-to-date fire detector is the following problem of ubiquity also: 1: existing fire detector major part all is that function ratio is more single, and it is more inflexible to dispose, and as special measurement residual current, measure temperature or smog specially, integrated level is not high.Be preferably and measure several roads residual current, be with 1 road temperature monitoring, but more at single place point for measuring temperature, the occasion that perhaps has the combination of special thermometric and leakage current detect to require, it is powerless, more unilateral that this detector also seems.2: because fire-alarm and isolating switch, fire detector all are packaged together, so volume is very big, make switch cubicle also will increase, be not easy to the transformation and upgrade of old system like this, simultaneously since be installed in that switch cubicle inside is not easy to the staff check duty and operation, in addition because isolating switch is subjected to volume restrictions, can't meet the demands in the occasion of big electric current, dispose dumb.3: the device that special survey multi way temperature and multichannel residual current are also arranged now, but lack close and have detector, if will reach the effect of several residual current and several temperature detection, must match two kinds of detectors simultaneously, brought inconvenience two: the first, and needed bigger installing space; The second, be difficult to select the type photodetector of lucky coincidence measurement number requirement, cause cost waste.
Summary of the invention
The purpose of this utility model be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of volume less, conveniently install and check, prepare flexibly, make things convenient for the upgrading of original system, integrated level is higher, reliability is high residual current and the modular electrical fire monitoring detector of temperature.
The purpose of this utility model can be achieved through the following technical solutions:
The modular electrical fire monitoring detector of a kind of residual current and temperature; it is characterized in that; comprise the temperature sensing module; the residual current transformer module; the voltage source module; the power down memory module; the picking up signal module; low pass filter blocks; CPU (central processing unit); key-press module; the LED display module; the LED indicating module; the sound and light alarm module; the protection output module; communication module; power module; described temperature sensing module; the residual current transformer module; the voltage source module is connected with the picking up signal module respectively; described picking up signal module is connected with low pass filter blocks, described CPU (central processing unit) respectively with the power down memory module; low pass filter blocks; key-press module; the LED display module; the LED indicating module; the sound and light alarm module; the protection output module; communication module connects.
If the temperature survey port number is x, it is y that port number is measured in electric leakage, and under the condition of x+y=4, any 4 passages of temperature sensing module channels and residual current transformer module channels can be connected with the picking up signal module.
Described power module is provided with rectification circuit; this rectification circuit input end is connected with AC power, and output terminal is connected with temperature sensing module, residual current transformer module, voltage source module, power down memory module, picking up signal module, low pass filter blocks, CPU (central processing unit), key-press module, LED display module, LED indicating module, sound and light alarm module, protection output module, communication module respectively.
Compared with prior art, the utlity model has following advantage:
1) the utility model adopts embedded installation, is realizing still keeping smaller volume under the situation of repertoire, very convenient installation and checking.
2) the utility model has adopted isolating switch externally, by the mode that the user matches voluntarily, prepares very flexibly, can satisfy the demand of different application occasion, also makes things convenient for the upgrading of original system.
3) the utility model function combinations is reasonable, but temperature and residual current monitoring channel number flexible configuration are considered field erected demand to greatest extent, and integrated level is higher.
4) the utility model can be provided with alarm parameters flexibly according to user's actual conditions, and alarm threshold value can be set, and the action delay time, makes this device can adapt to the different application occasion, the not malfunction of real implement device and not tripping.
5) the utility model both can detect in real time to the line contacts temperature, also can implement monitoring to the cable temperature, can measure distribution cabinet or environment temperature again, the real three-dimensional thermometric of realizing outside the electric leakage monitoring.And can whether break to temperature sensor and carry out online detection, and make the wiring error indication.Can prevent from further to improve the reliability of detector because the defencive function that sensor fault causes lost efficacy.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1; the modular electrical fire monitoring detector of a kind of residual current and temperature; comprise temperature sensing module 1; residual current transformer module 2; voltage source module 3; power down memory module 4; picking up signal module 5; low pass filter blocks 6; CPU (central processing unit) 7; key-press module 8; LED display module 9; LED indicating module 10; sound and light alarm module 11; protection output module 12; communication module 13; power module 14; described temperature sensing module 1; residual current transformer module 2; voltage source module 3 is connected with picking up signal module 5 respectively; described picking up signal module 5 is connected with low pass filter blocks 6, described CPU (central processing unit) 7 respectively with power down memory module 4; low pass filter blocks 6; key-press module 8; LED display module 9; LED indicating module 10; sound and light alarm module 11; protection output module 12; communication module 13 connects.Described communication module 13 is provided with the RS485 communication interface.Described power module 14 is provided with rectification circuit; this rectification circuit input end is connected with AC power, and output terminal is connected with temperature sensing module 1, residual current transformer module 2, voltage source module 3, power down memory module 4, picking up signal module 5, low pass filter blocks 6, CPU (central processing unit) 7, key-press module 8, LED display module 9, LED indicating module 10, sound and light alarm module 11, protection output module 12, communication module 13 respectively.But picking up signal module 5 hardware programming, the temperature survey port number is made as x, and port number is measured in electric leakage, is made as y, under the condition of x+y=4, can dispose the software correspondence by hardware arbitrarily.
Wherein, that the various signals of the 7 pairs of corresponding modules of CPU (central processing unit) input carry out Treatment Analysis and corresponding output is sent on the corresponding module, realize the various functions of this device.Residual current transformer module 2 becomes less secondary singal by residual current transformer with the residual current conversion of signals.Temperature sensing module 1 is converted into the resistance signal with node temperature.But picking up signal module 5 flexible configuration are picked up several electric leakage signal and temperature sensor signal.The signal that 6 pairs of pick-up circuits of low pass filter blocks are sent here carries out filtering, with filtering interfering.Voltage source module 3 is used for the residual current signal is carried out the lifting conditioning, also provides reference source for the measurement of temperature sensor resistance.Power down memory module 4 still can be preserved failure logging and basic setup information for device provides data storage service after power down.Key-press module 8 makes things convenient for the staff that this device is carried out setting operation, realizes man-machine interaction.LED display module 9 provides the demonstration of real time data for the staff at the detector scene, make things convenient for the staff to check information and carry out man-machine interaction.LED indicating module 10 is the fault state of reaction unit running status, communication conditions and circuit simply and intuitively.Sound and light alarm module 11 makes things convenient for staff's very first time to find the trouble spot when breaking down.Protection output module 12 is handled fault according to the situation that is provided with before, realizes the warning teletransmission and the protection of threading off; Can adopt the mode of threading off and protecting in security and the general consumer of reliability requirement, directly cut off the electricity supply and alert notice; And be not suitable for cutting off the power supply or important consumer can adopt the closed mode of relay output, under the situation of can not cutting off the electricity supply like this, monitor electric leakage and state of temperature in time by host computer.Communication module 13 possesses the communication based on the MODBUS-RTU agreement of RS485.Power module is converted to multi-channel dc power supply with AC power, for each module of whole device provides working power.
After determining measured residual current and temperature channel, picking up signal module 5 is carried out the counter element going or staying, can meet the demands.The residual current signal is after mutual inductor is isolated conditioning; entering signal pickup model 5; after low pass filter blocks 6 filtering; be sent to CPU (central processing unit) 7; 7 pairs of data that receive of CPU (central processing unit) are for further processing; compare with the protection parameter of setting before after data processing is intact, judge whether to break down, and data in real time is presented on the LED display module 9.Will handle according to setting fault handling mode before if break down, and trigger sound and light alarm module 10 and notify the staff.For temperature, then by 3 power supplies of builtin voltage source module, external temperature sensing module 1 through picking up signal module 5, is sent to CPU (central processing unit) 7, CPU (central processing unit) 7 is done further processing, obtain temperature value, compare, transfinite and then carry out the warning of acousto-optic and relay with setting value, and according to key-press module 8 dispositions, whether decision is shown to temperature value on the LED display module 9.CPU (central processing unit) 7 can be carried out exchanges data with master system by communication module 13, makes things convenient for the monitoring of host computer to device.CPU (central processing unit) 7 is carried out man-machine interaction by key-press module 8 and LED display module 9, and change is provided with content, and content will be set be kept in the storage chip that power down do not lose.

Claims (3)

1. the modular electrical fire monitoring detector of residual current and temperature; it is characterized in that; comprise the temperature sensing module; the residual current transformer module; the voltage source module; the power down memory module; the picking up signal module; low pass filter blocks; CPU (central processing unit); key-press module; the LED display module; the LED indicating module; the sound and light alarm module; the protection output module; communication module; power module; described temperature sensing module; the residual current transformer module; the voltage source module is connected with the picking up signal module respectively; described picking up signal module is connected with low pass filter blocks, described CPU (central processing unit) respectively with the power down memory module; low pass filter blocks; key-press module; the LED display module; the LED indicating module; the sound and light alarm module; the protection output module; communication module connects.
2. the modular electrical fire monitoring detector of a kind of residual current according to claim 1 and temperature, it is characterized in that, if the temperature survey port number is x, it is y that port number is measured in electric leakage, under the condition of x+y=4, any 4 passages of temperature sensing module channels and residual current transformer module channels can be connected with the picking up signal module.
3. the modular electrical fire monitoring detector of a kind of residual current according to claim 1 and temperature; it is characterized in that; described power module is provided with rectification circuit; this rectification circuit input end is connected with AC power, and output terminal is connected with temperature sensing module, residual current transformer module, voltage source module, power down memory module, picking up signal module, low pass filter blocks, CPU (central processing unit), key-press module, LED display module, LED indicating module, sound and light alarm module, protection output module, communication module respectively.
CN2010202306682U 2010-06-18 2010-06-18 Combined-type electrical fire monitoring detector of residual current and temperature Expired - Lifetime CN201707753U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368342A (en) * 2011-06-27 2012-03-07 苏州中研纺织科技有限公司 Firefighting early warning device
CN102855729A (en) * 2012-08-25 2013-01-02 于宝成 Residual current type electric fire monitoring system capable of self-supplying power
CN106485866A (en) * 2016-10-20 2017-03-08 湖南天浩智能科技有限公司 A kind of fire power gas fire disaster intelligent monitor equipment
CN106771474A (en) * 2016-11-11 2017-05-31 天水电气传动研究所有限责任公司 A kind of power points temperature prediction and alarm method suitable for electric control system for drilling machine
CN108254009A (en) * 2017-12-28 2018-07-06 施耐德万高(天津)电气设备有限公司 A kind of detection circuit and judgment method for being adapted to different sensors
CN111986417A (en) * 2020-09-07 2020-11-24 山东臣乔电气科技股份有限公司 Intelligent electrical fire monitoring system based on Internet of things

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368342A (en) * 2011-06-27 2012-03-07 苏州中研纺织科技有限公司 Firefighting early warning device
CN102855729A (en) * 2012-08-25 2013-01-02 于宝成 Residual current type electric fire monitoring system capable of self-supplying power
CN102855729B (en) * 2012-08-25 2016-01-06 于宝成 Automatic electricity getting residual-current electrical fire supervisory system
CN106485866A (en) * 2016-10-20 2017-03-08 湖南天浩智能科技有限公司 A kind of fire power gas fire disaster intelligent monitor equipment
CN106771474A (en) * 2016-11-11 2017-05-31 天水电气传动研究所有限责任公司 A kind of power points temperature prediction and alarm method suitable for electric control system for drilling machine
CN106771474B (en) * 2016-11-11 2019-03-08 天水电气传动研究所有限责任公司 A kind of power points temperature prediction and alarm method suitable for electric control system for drilling machine
CN108254009A (en) * 2017-12-28 2018-07-06 施耐德万高(天津)电气设备有限公司 A kind of detection circuit and judgment method for being adapted to different sensors
CN111986417A (en) * 2020-09-07 2020-11-24 山东臣乔电气科技股份有限公司 Intelligent electrical fire monitoring system based on Internet of things

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C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 201801 Jiading District Green Road, No. 253, Shanghai

Patentee after: ACREL CO., LTD.

Address before: 201801 Jiading District Green Road, No. 253, Shanghai

Patentee before: Shanghai Acrel Electric Co., Ltd.

C56 Change in the name or address of the patentee
CX01 Expiry of patent term

Granted publication date: 20110112

CX01 Expiry of patent term