CN102929166B - Temperature-based control method and controller of intelligent socket - Google Patents
Temperature-based control method and controller of intelligent socket Download PDFInfo
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- CN102929166B CN102929166B CN201210421285.7A CN201210421285A CN102929166B CN 102929166 B CN102929166 B CN 102929166B CN 201210421285 A CN201210421285 A CN 201210421285A CN 102929166 B CN102929166 B CN 102929166B
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Abstract
The invention relates to a temperature-based controller of an intelligent socket. The temperature-based controller comprises a shell, a power supply line led out from the shell and provided with a plug, a first real-time temperature sensor for acquiring an absolute ambient temperature as well as an ambient temperature sensor and a second real-time temperature sensor for acquiring a relative ambient temperature, wherein a main control socket which is connected with the power supply line is installed inside the shell; the ambient temperature sensor and the second real-time temperature sensor are connected with a microprocessor through a comparing circuit UA and an emitter follower circuit UB; the microprocessor is further connected with the first real-time temperature sensor, an alarm circuit and a driving circuit for controlling the power supply of a controlled socket; an AC/DC (Alternative Current/Direct Current) converting circuit supplies power to the circuits; and the sound-light alarm is carried out or the power supply of the controlled socket is controlled by setting an alarm temperature and a power-off temperature for different absolute ambient temperatures and an alarm temperature difference value and a power-off temperature difference value of the relative ambient temperature. The invention also discloses a control method. The temperature-based controller has the beneficial effects of security, reliability and high intelligentization degree.
Description
Technical field
The present invention relates to the socket for the power supply of transferring, especially relate to intelligent control method and controller with the socket of temperature correlation.
Background technology
When socket (Power conversion board) is used, all there is certain resistance in inner lead, copper latch, and when load current becomes large, therefore enclosure interior can produce temperature rise; In normal operating range, this temperature rise is acceptable.
When having used non-type contact pin, copper latch is through lasting plug, or in wet environment, use and can produce oxide layer for a long time, this oxide layer can cause contact pin and copper latch to produce larger contact resistance between the two, under large current conditions, this contact resistance can produce very large heat, the scope that serious meeting can be born far beyond standardized component, temperature rise is very high, can produce following hidden danger:
When high temperature toasts for a long time, the plastic housing of copper latch and corresponding site is melted in serious meeting, makes it heating distortion, even can fire hazard.
In order addressing this problem, in prior art, to have by disposable fusible link is installed overcurrent is protected, or protect by recoverable bimetal element overload protector is installed.
As previously described, the high heat that contact resistance increases or some other reason causes, might not be that loop current has surpassed rated current, and overload protection device does not reach the condition of action, can not play a protective role.Even if the temperature controller of bimetallic strip has been installed, also can, because of the impact that is subject to environment temperature, cannot judge the intensification that environment temperature causes or contact resistance is excessive and cause the in the situation that of large electric current.
Summary of the invention
The present invention is in order to overcome above-mentioned deficiency; a kind of control method and controller of the intelligent socket based on temperature have been proposed; adopt a plurality of temperature sensors; for gathering different temperature spots; and the different protection domain of different Temperature Settings is taked to different safeguard measures; so that the load when nobody guards in the controlled socket of the protection of effective and safe, prevents that fire from occurring.
Technical scheme of the present invention is:
A control method for intelligent socket based on temperature, this control method comprises the steps:
11) detect real time temperature in socket housing;
12) this real time temperature and predefined alarm temperature are compared;
13) if real time temperature, higher than alarm temperature, sends sound and light alarm, otherwise, sound and light alarm do not sent.
This control method also comprises the steps:
14) if described real time temperature higher than power-off temperature, controlled socket is cut off the electricity supply, otherwise, controlled socket out-put supply.
This control method also comprises the steps:
31) detect the environment temperature outside socket housing;
32) environment temperature and described real time temperature are compared;
33) if difference is relatively greater than predefined warning temperature approach, send sound and light alarm, otherwise, sound and light alarm do not sent.
This control method also comprises the steps:
34), if the difference of described comparison is greater than predefined power-off temperature approach, described controlled socket is cut off the electricity supply, otherwise, controlled socket out-put supply.
Described alarm temperature is that 60 ℃, power-off temperature are that 80 ℃, warning temperature approach are that 15 ℃, power-off temperature approach are 25 ℃.
The present invention also provides a kind of controller of realizing above-mentioned control method:
A controller for intelligent socket based on temperature, comprises housing, in the power lead with plug of drawing in housing, housing, the master control socket being connected with power lead is installed, and also comprises:
The first real time temperature sensor, it is placed in socket housing for detection of real time temperature;
Microprocessor, an one input end connects the first real time temperature sensor, for gathering the signal of the first real time temperature sensor, and this signal value value corresponding with predefined alarm temperature compared, if real time temperature is higher than alarm temperature, output alarm signal, otherwise, output alarm signal not;
Warning circuit, is comprised of resistance R 21, triode Q3, LED 1, hummer SP, and the input end of warning circuit is connected with the warning output terminal of microprocessor, sound and light alarm after receiving alerting signal;
AC/DC change-over circuit, its input termination power lead, its output terminal is to microprocessor, and warning circuit is powered.
Further, also comprise: controlled socket and driving circuit, this driving circuit comprises resistance R 24, triode Q4, relay J, the contact switch K of relay J is connected to described power lead after connecting with controlled socket, the input end of driving circuit is connected with the power-off output terminal of microprocessor, if described real time temperature, higher than power-off temperature, cuts off the output voltage of controlled socket, driving circuit is powered by AC/DC change-over circuit.
Further, also comprise:
Environment temperature sensor;
The second real time temperature sensor;
Comparator circuit UA, its positive input terminal one tunnel through resistance R 11 to the power supply of AC/DC change-over circuit just, another road is the power supply ground to AC/DC change-over circuit through environment temperature sensor, its negative input end one tunnel through resistance R 13 to the power supply of AC/DC change-over circuit just, another road second real time temperature sensor is to the power supply ground of AC/DC change-over circuit, its output terminal connects the power supply ground of AC/DC change-over circuit through capacitor C 6, environment temperature sensor and the second real time temperature sensor have negative temperature coefficient;
Emitter follower circuit UB, its negative input end is connected with the movable end of potentiometer W1, the power supply that two stiff ends of potentiometer W1 connect respectively AC/DC change-over circuit just with power supply ground, its positive input terminal one tunnel is connected with the output terminal of comparator circuit UA through resistance R 15, another road is connected to the output terminal of emitter follower circuit UB through resistance R 16, the output terminal of emitter follower circuit UB is connected to an analog port of microprocessor through resistance R 17, if the difference that the temperature that environment temperature sensor and the second real time temperature sensor collect compares is greater than predefined warning temperature approach, the warning output terminal output alarm signal of described microprocessor, if this difference is greater than predefined power-off temperature approach, the power-off output terminal output power-off signal of described microprocessor,
Comparator circuit UA and emitter follower circuit UB are powered by AC/DC change-over circuit;
Described housing is provided with the unlimited hollow cylinder in one end, the built-in secondary thermal insulation of this hollow cylinder hollow cylinder, secondary thermal insulation hollow cylinder is provided with outer toroid, accordingly, hollow cylinder is provided with the draw-in groove supporting with this outer toroid, between the outer circumference surface of secondary thermal insulation hollow cylinder and the periphery of hollow cylinder, leave for heat insulation space, environment temperature sensor is arranged in secondary thermal insulation hollow cylinder, and the second real time temperature sensor is close to housing.
Described environment temperature sensor is NPN transistor Q1, and its base stage is connected to the positive input terminal of comparator circuit UA after being connected with collector, and emitter meets the power supply ground of AC/DC change-over circuit, parallel resistance R12 between base stage and emitter; The second described real time temperature sensor is NPN transistor Q2, and its base stage is connected to the negative input end of comparator circuit UA after being connected with collector, and emitter meets the power supply ground of AC/DC change-over circuit, parallel resistance R14 between base stage and emitter.
The first described real time temperature sensor is thermistor.
Real-Time Monitoring socket soaking condition of the present invention, takes different safeguard measures to different temperature rises, has the high beneficial effect of safe and reliable, intelligent degree.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present invention.
Fig. 2 is the partial structurtes schematic diagram that environment temperature sensor of the present invention is relevant.
Embodiment
A control method for intelligent socket based on temperature, this control method comprises the steps:
11) detect real time temperature in socket housing;
12) this real time temperature and predefined alarm temperature are compared;
13) if real time temperature, higher than alarm temperature, sends sound and light alarm, otherwise, sound and light alarm do not sent.
On the basis of above-mentioned steps, can also comprise:
14) if described real time temperature higher than power-off temperature, controlled socket is cut off the electricity supply, otherwise, controlled socket out-put supply.
Wherein, alarm temperature is that 60 ℃, power-off temperature are 80 ℃.
On the basis of above-mentioned steps, this control method can also comprise the steps: simultaneously
31) detect the environment temperature outside socket housing;
32) environment temperature and described real time temperature are compared;
33) if difference is relatively greater than predefined warning temperature approach, send sound and light alarm, otherwise, sound and light alarm do not sent.
On the basis of above-mentioned steps, this control method can also comprise the steps: simultaneously
34) if the difference of described comparison is greater than predefined power-off temperature difference temperature, described controlled socket is cut off the electricity supply, otherwise, controlled socket out-put supply.
Wherein, warning temperature approach is that 15 ℃, power-off temperature difference temperature are 25 ℃.
It should be noted that, alarm temperature, power-off temperature, warning temperature approach, power-off temperature difference temperature can arrange as required.
The present invention also provides a kind of controller of realizing above-mentioned control method, and existing the present invention is further illustrated by reference to the accompanying drawings:
As shown in Figure 1 and Figure 2, a kind of controller of the intelligent socket based on temperature, comprise housing 1, housing 1 is synthetic by first and second, what in Fig. 2, show is second, in the power lead with plug of drawing in housing 1, housing 1, master control socket CZ1 and the controlled socket CZ2 being connected with power lead is installed, controlled socket CZ2 can select a plurality of and in parallel, also comprises:
The first real time temperature sensor, it adopts thermistor RT, is placed in socket housing 1 interior for detection of real time temperature, and this real time temperature is actually absolute environment temperature;
Microprocessor U3, model is KS652, P01/ADC1 pin gathers the signal of the first real time temperature sensor, the value that this signal value is corresponding with predefined alarm temperature compares, if real time temperature is higher than alarm temperature, warning output terminal P13 pin output alarm high level signal, otherwise, output alarm signal not, resistance R 0 connects the P00/ADC0 pin of microprocessor U3, resistance R 0 is as the reference resistance not influenced by ambient temperature with respect to thermistor RT, the predefined alarm temperature of software obtains by resistance R 0, the power supply that the P16/VPP pin of microprocessor U3 connects AC/DC change-over circuit as clear terminal one tunnel through reset switch S1 just, another road connects the power supply ground of AC/DC change-over circuit through resistance R 18,
As one of embodiment, the first real time temperature sensor can be selected the temperature sensor with built-in analog to digital conversion circuit, is directly inputted to the microprocessor that has FPDP, can omit resistance R 0;
As one of embodiment, the first real time temperature sensor also can be selected the temperature sensor of exportable analog voltage signal, this analog voltage is input to the microprocessor of analog port, can omit resistance R 0;
Warning circuit, by resistance R 21, triode Q3, LED 1, hummer SP, formed, the emitter of triode Q3 connects power supply ground, base stage connects the warning output terminal of microprocessor U3 through resistance R 21, collector is just connecing power supply through LED 1, hummer SP, the warning output terminal P13 pin output high level of microprocessor U3, turn-on transistor Q3, drives LED 1, hummer SP sound and light alarm;
AC/DC change-over circuit, selected module AC/DC, L and the N phase line of its input termination power lead, its output terminal output+5V and+24V supply voltage, wherein+5V supply voltage is powered to microprocessor U3 and warning circuit.
As expansion, except above-mentioned embodiment, the present invention can also comprise:
Controlled socket CZ2 and driving circuit, this driving circuit comprises triode Q4, LED 2, relay J, diode D10, resistance R 24, R25, the base stage of triode Q4 connects the power-off output terminal P04/ADC4 pin of microprocessor U3 through resistance R 24, emitter connects the power supply ground of AC/DC change-over circuit, collector is LED 2 and the resistance R 25 through connecting respectively, diode D10, relay J meets AC/DC change-over circuit+24V, the contact switch K of relay J is connected to L and the N phase of power lead after connecting with controlled socket CZ2, by microprocessor U3, control power-off or the energising of controlled socket CZ2.
As expansion, except above-mentioned embodiment, the present invention can also comprise:
Environment temperature sensor 3 and the second real time temperature sensor, by these two temperature sensor collections are relative environment temperatures;
Comparator circuit UA, its positive input terminal one tunnel through resistance R 11 to the power supply of the AC/DC change-over circuit of AC/DC change-over circuit just, another road is the power supply ground to AC/DC change-over circuit through environment temperature sensor 3, its negative input end one tunnel through resistance R 13 to the power supply of AC/DC change-over circuit just, another road second real time temperature sensor is to the power supply ground of AC/DC change-over circuit, its output terminal connects the power supply ground of AC/DC change-over circuit through capacitor C 6, environment temperature sensor 3 and the second real time temperature sensor have negative temperature coefficient; Capacitor C 5 is connected in parallel on positive input terminal and the negative input end of comparator circuit UA;
Emitter follower circuit UB, its negative input end is connected with the movable end of potentiometer W1, the power supply that the stiff end of potentiometer W1 connects AC/DC change-over circuit just with the power supply ground of AC/DC change-over circuit, its positive input terminal one tunnel is connected with the output terminal of comparator circuit UA through resistance R 15, another road is connected to the output terminal of emitter follower circuit UB through resistance R 16, the output terminal of emitter follower circuit UB is connected to the P12/ADC5 pin of microprocessor U3 by network connectivity IN through resistance R 17;
The optional double operational integrated circuit of comparator circuit UA and emitter follower circuit UB in AC/DC change-over circuit+5V supply voltage powers;
Housing 1 is provided with the unlimited hollow cylinder in one end 11, the built-in secondary thermal insulation of this hollow cylinder 11 hollow cylinder 21, secondary thermal insulation hollow cylinder 21 is provided with outer toroid 22, accordingly, hollow cylinder 11 is provided with the draw-in groove supporting with this outer toroid 22, between the outer circumference surface of secondary thermal insulation hollow cylinder 21 and the periphery of hollow cylinder 11, leave for heat insulation space, environment temperature sensor 3 is arranged in secondary thermal insulation hollow cylinder 11, and the second real time temperature sensor is close to housing 1;
Except selecting common thermistor as temperature sensor, the environment temperature sensor 3 of the present embodiment is NPN transistor Q1, its base stage is connected to the positive input terminal of comparator circuit UA after being connected with collector, emitter meets the power supply ground of AC/DC change-over circuit, parallel resistance R12 between base stage and emitter; The second real time temperature sensor is NPN transistor Q2, and its base stage is connected to the negative input end of comparator circuit UA after being connected with collector, and emitter meets the power supply ground of AC/DC change-over circuit, parallel resistance R14 between base stage and emitter.
The present invention can select several functions combination, environment temperature sensor 3, the second real time temperature sensor, comparator circuit UA, comparator circuit UB and relevant circuit are the inner temperature rise Acquisition Circuit of environment relatively of socket, the first real time temperature sensor is the inner definitely temperature rise Acquisition Circuit of socket, these two kinds of temperature rise Acquisition Circuit can with and/or form choice for use, in like manner, warning circuit, driving circuit also can with and/or form select choice for use, these functional modules all can have been controlled by microprocessor U3, the selection of microprocessor U3 also can have Multiple Type, according to the model of temperature sensor, select the port matching, conventionally need to there is analog port.
The alarm temperature of the absolute environment of microprocessor U3 internal preset, power-off temperature, warning temperature approach, the power-off temperature difference temperature of relative environment, sound and light alarm while reaching at first alarm temperature or warning temperature approach, the output voltage that cuts off controlled socket while reaching at first power-off temperature or power-off temperature difference temperature.
As preferably, definitely the alarm temperature of environment is that 60 ℃, power-off temperature are 80 ℃, and the warning temperature approach of environment is that 15 ℃, power-off temperature difference temperature are 25 ℃ relatively, and these temperature can be made change as required.
Although be that the present invention is described further by the mode of illustrating and give an example here; but should be realized that; the present invention is not limited to the above-described embodiment and examples; it is illustrative that description above is only considered to; and it is nonrestrictive; those skilled in the art can make multiple conversion or modification, as long as no leaving the scope and spirit essence of establishing in this claim, are all considered as within protection scope of the present invention.
Claims (3)
1. a controller for the intelligent socket based on temperature, comprises housing, in the power lead with plug of drawing in housing, housing, the master control socket being connected with power lead is installed, and it is characterized in that, also comprises:
The first real time temperature sensor, it is placed in socket housing for detection of real time temperature;
Microprocessor, an one input end connects the first real time temperature sensor, for gathering the signal of the first real time temperature sensor, and this signal value value corresponding with predefined alarm temperature compared, if real time temperature is higher than alarm temperature, output alarm signal, otherwise, output alarm signal not;
Warning circuit, is comprised of resistance R 21, triode Q3, LED 1, hummer SP, and the input end of warning circuit is connected with the warning output terminal of microprocessor, sound and light alarm after receiving alerting signal;
AC/DC change-over circuit, its input termination power lead, its output terminal is to microprocessor, and warning circuit is powered;
Controlled socket and driving circuit, this driving circuit comprises resistance R 24, triode Q4, relay J, the contact switch K of relay J is connected to described power lead after connecting with controlled socket, the input end of driving circuit is connected with the power-off output terminal of microprocessor, if described real time temperature is higher than power-off temperature, cut off the output voltage of controlled socket, driving circuit is powered by AC/DC change-over circuit;
Environment temperature sensor;
The second real time temperature sensor;
Comparator circuit UA, its positive input terminal one tunnel through resistance R 11 to the power supply of AC/DC change-over circuit just, another road is the power supply ground to AC/DC change-over circuit through environment temperature sensor, its negative input end one tunnel through resistance R 13 to the power supply of AC/DC change-over circuit just, another road second real time temperature sensor is to the power supply ground of AC/DC change-over circuit, its output terminal connects the power supply ground of AC/DC change-over circuit through capacitor C 6, environment temperature sensor and the second real time temperature sensor have negative temperature coefficient;
Emitter follower circuit UB, its negative input end is connected with the movable end of potentiometer W1, the power supply that two stiff ends of potentiometer W1 connect respectively AC/DC change-over circuit just with power supply ground, its positive input terminal one tunnel is connected with the output terminal of comparator circuit UA through resistance R 15, another road is connected to the output terminal of emitter follower circuit UB through resistance R 16, the output terminal of emitter follower circuit UB is connected to an analog port of microprocessor through resistance R 17, if the difference that the temperature that environment temperature sensor and the second real time temperature sensor collect compares is greater than predefined warning temperature approach, the warning output terminal output alarm signal of described microprocessor, if this difference is greater than predefined power-off temperature approach, the power-off output terminal output power-off signal of described microprocessor,
Comparator circuit UA and emitter follower circuit UB are powered by AC/DC change-over circuit;
Described housing is provided with the unlimited hollow cylinder in one end, the built-in secondary thermal insulation of this hollow cylinder hollow cylinder, secondary thermal insulation hollow cylinder is provided with outer toroid, accordingly, hollow cylinder is provided with the draw-in groove supporting with this outer toroid, between the outer circumference surface of secondary thermal insulation hollow cylinder and the periphery of hollow cylinder, leave for heat insulation space, environment temperature sensor is arranged in secondary thermal insulation hollow cylinder, and the second real time temperature sensor is close to housing.
2. the controller of a kind of intelligent socket based on temperature as claimed in claim 1, it is characterized in that: described environment temperature sensor is NPN transistor Q1, its base stage is connected to the positive input terminal of comparator circuit UA after being connected with collector, emitter meets the power supply ground of AC/DC change-over circuit, parallel resistance R12 between base stage and emitter; The second described real time temperature sensor is NPN transistor Q2, and its base stage is connected to the negative input end of comparator circuit UA after being connected with collector, and emitter meets the power supply ground of AC/DC change-over circuit, parallel resistance R14 between base stage and emitter.
3. the controller of a kind of intelligent socket based on temperature as claimed in claim 1, is characterized in that: the first described real time temperature sensor is thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210421285.7A CN102929166B (en) | 2012-10-29 | 2012-10-29 | Temperature-based control method and controller of intelligent socket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210421285.7A CN102929166B (en) | 2012-10-29 | 2012-10-29 | Temperature-based control method and controller of intelligent socket |
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| CN102929166A CN102929166A (en) | 2013-02-13 |
| CN102929166B true CN102929166B (en) | 2014-11-05 |
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| CN201210421285.7A Expired - Fee Related CN102929166B (en) | 2012-10-29 | 2012-10-29 | Temperature-based control method and controller of intelligent socket |
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| US20150262468A1 (en) * | 2014-03-13 | 2015-09-17 | Wei-Li YANG | Power socket temperature alarm device |
| CN103996936B (en) * | 2014-05-06 | 2017-04-19 | Tcl集团股份有限公司 | Intelligent socket and control method for intelligent socket |
| CN105091724A (en) * | 2015-03-05 | 2015-11-25 | 浙江吉利罗佑发动机有限公司 | LVDT measuring head rapid calibration tool and calibration method |
| CN106299896A (en) * | 2015-05-29 | 2017-01-04 | 上海创米科技有限公司 | A kind of method preventing smart jack overheated |
| CN104868328A (en) * | 2015-06-08 | 2015-08-26 | 辽宁兴隆百货集团有限公司 | Temperature-control type fireproof safety socket |
| CN105742910A (en) * | 2016-04-08 | 2016-07-06 | 太仓凯丰电子科技有限公司 | Universal safety socket |
| CN107062521A (en) * | 2017-01-25 | 2017-08-18 | 青岛海尔空调器有限总公司 | Convertible frequency air-conditioner fire prevention control method |
| CN106839303A (en) * | 2017-01-25 | 2017-06-13 | 青岛海尔空调器有限总公司 | Fixed frequency air conditioner fire prevention control method |
| CN106705382A (en) * | 2017-01-25 | 2017-05-24 | 青岛海尔空调器有限总公司 | Fire prevention control method for fixed-frequency air conditioner |
| CN106839302A (en) * | 2017-01-25 | 2017-06-13 | 青岛海尔空调器有限总公司 | Realize the method and system of convertible frequency air-conditioner fire prevention control |
| CN106766000A (en) * | 2017-01-25 | 2017-05-31 | 青岛海尔空调器有限总公司 | Convertible frequency air-conditioner fire prevention control method and control system |
| CN109028256B (en) * | 2018-07-16 | 2021-10-01 | 珠海格力电器股份有限公司 | Heating equipment and control device and method thereof |
| CN109412173A (en) * | 2018-10-31 | 2019-03-01 | 国网江苏省电力有限公司太仓市供电分公司 | A kind of parallel capacitor complete equipment overheat method for early warning based on the temperature difference |
| CN111120950A (en) * | 2019-12-27 | 2020-05-08 | 甬港现代工程有限公司 | Emergency lighting system |
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