CN201118192Y - Controller for limiting power utilization - Google Patents
Controller for limiting power utilization Download PDFInfo
- Publication number
- CN201118192Y CN201118192Y CNU2007201709148U CN200720170914U CN201118192Y CN 201118192 Y CN201118192 Y CN 201118192Y CN U2007201709148 U CNU2007201709148 U CN U2007201709148U CN 200720170914 U CN200720170914 U CN 200720170914U CN 201118192 Y CN201118192 Y CN 201118192Y
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Abstract
The utility model discloses a controller of limited electricity utilization, so as to solve the technical problems of ensuring the safety of electricity utilization, and limiting abnormal large-power electricity utilization. The controller of limited electricity utilization is provided with a conversion circuit, an overload detection circuit, a delay control drive circuit and a switching circuit which are connected orderly. Compared with the prior art, the controller with limited electricity utilization uses the conversion circuit, the overload detection circuit, the delay control drive circuit and the switching circuit to limit the large-power resistant load; when the power exceeds the set power of the load, the controller can alarm and be automatically cut off; after the load is detected to be normal, the electricity is supplied again, so as to effectively avoid the dangerous large-power resistant load of electric heating, such as an electric furnace, an electric heater, an electric room heater, an electric kettle. And the meter type load, such as a computer, a television, an electronic fluorescent lamp, a light, a fan and so on, can normally operate when the total power is limited within the safety range of carrying current, so as to achieve the purpose of intelligent brownout and power saving.
Description
Technical field
The utility model relates to a kind of power controller of household electricity device, the power controller of particularly a kind of safety utilization of electric power, electrical energy saving.
Background technology
At present, places such as student dormitory, factory dormitory, classroom, office are because the large power-consuming equipment that uses violating the regulations, such as dangerous electroheat equipments such as electric furnace, immersion heater, electric heater, insulating pots, not only power big, expend the energy, but also can because of circuit overload produce overheated, and equipment self is overheated, the defective of electric leakage, causes producing the serious potential safety hazard of fire, the security of the lives and property that threatens people at any time.Therefore safety utilization of electric power, electrical energy saving are the vital task of pendulum in face of us.
Summary of the invention
The purpose of this utility model provides a kind of dsm controller of limiting the quantity of, and the technical problem that solve is to guarantee Electrical Safety, limits improper high-power electricity consumption.
The utility model is by the following technical solutions: a kind of dsm controller of limiting the quantity of, the described dsm controller of limiting the quantity of have translation circuit, excess load testing circuit, time-delay control Driver Circuit and the switching circuit that is linked in sequence.
Excess load testing circuit of the present utility model, time-delay control Driver Circuit are connected with the audio alarm phonation circuit respectively.
The dsm controller of limiting the quantity of of the present utility model is provided with the power circuit into translation circuit, excess load testing circuit, time-delay control Driver Circuit, switching circuit and the power supply of audio alarm phonation circuit.
Translation circuit of the present utility model is provided with reactance transformer, and the elementary power supply that connects of reactance transformer, the inferior utmost point are connected to the conversion diode that forward connects, and the conversion diode cathode is serially connected with the T shape circuit that first electric capacity, first resistance and second resistance are formed.
Excess load testing circuit of the present utility model is provided with first operational amplifier, the first operational amplifier reverse input end connects power circuit through the 3rd resistance, the 5th resistance respectively, positive input connects first resistance and the second resistance link, and output is connected with positive input through the 4th resistance.
Time-delay control Driver Circuit of the present utility model is provided with Schmidt trigger, the collector electrode of first triode connects Schmidt trigger one input and the 4th electric capacity one end through the tenth resistance, this input connects power circuit through the 8th resistance, the 9th resistance respectively, another input of Schmidt trigger connects common port through the 3rd electric capacity, the emitter of first triode, another termination common port of the 4th electric capacity, first transistor base connects first operational amplifier output terminal through the 6th diode of the 7th resistance, reverse serial connection.
The base stage of second triode of the utility model switching circuit connects the Schmidt trigger output through the 13 resistance, the collector connecting relay coil of second triode, and second transistor emitter connects common port.
The speech chip input of the utility model audio alarm phonation circuit connects first operational amplifier output terminal through the 7th diode of the 15 resistance, reverse serial connection, the speech chip output connects the 3rd transistor base through the 17 resistance, and the 3rd transistor collector connects acoustical generator through step-up transformer.
Power circuit of the present utility model is made of step-down current-limiting circuit, bridge rectifier, filter circuit and voltage stabilizing circuit.
Be serially connected with light-emitting diode on the relay coil of the present utility model.
The utility model compared with prior art, adopt the translation circuit that connects, the excess load testing circuit, time-delay control Driver Circuit and switching circuit, high-power resistive load is limited, when exceeding the bearing power of setting, report to the police and outage automatically, detect load normal after automatic recovery of power supply again, can effectively prevent Electric stove, immersion heater, electric heater, the use of the dangerous high-power resistive electrothermal load of insulating pot, and instrument duty ratio such as computer, television set, electric daylight lamp, illuminating lamp, electrical equipment such as fan then can be rationed the power supply thereby reach intellectuality in the safe current-carrying scope of gross power restriction with interior operate as normal, the purpose of economize on electricity.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model embodiment.
Fig. 2 is the circuit theory diagrams of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.As shown in Figure 1, the dsm controller of limiting the quantity of of the present utility model, comprise the translation circuit, excess load testing circuit, time-delay control Driver Circuit, the switching circuit that are linked in sequence, excess load testing circuit, time-delay control Driver Circuit are connected with the audio alarm phonation circuit respectively.Power circuit provides power supply for translation circuit, excess load testing circuit, time-delay control Driver Circuit, switching circuit
As shown in Figure 2, (1) translation circuit by reactance transformer LH be serially connected in the conversion diode D1 that LH utmost point of reactance transformer, forward are connected, first capacitor C 1, first resistance R 1 and second resistance R 2 are formed T shape circuit.When reactance transformer LH elementary when the electric current, the secondary voltage that will induce certain numerical value at reactance transformer LH, this voltage is through being added in behind the conversion diode D1 rectifying conversion on first resistance R 1 and second resistance R 2, so on second resistance R 2, produce a voltage, this voltage signal is input to the positive input of first operational amplifier A 1, is detected by first operational amplifier A 1.(2) the excess load testing circuit has first operational amplifier A 1, first operational amplifier A, 1 reverse input end is respectively through the 3rd resistance R 3, the 5th resistance (R5) connects the voltage stabilizing circuit out-put supply, obtain normal voltage, the output of first operational amplifier A 1 is connected with positive input through the 4th resistance R 4, the 5th resistance R 5 one terminations the 3rd resistance R 3, another termination reactance transformer time utmost point common port, first operational amplifier A 1 compares the set point voltage that the voltage signal that produces on second resistance R 2 and the 3rd resistance R 3 provide, computing, output output high level when greater than set point, output low level during less than set point.(3) the time-delay control Driver Circuit has Schmidt trigger F1, the collector electrode of the first triode VT1 connects Schmidt trigger F1 one input and the 4th capacitor C 4 through the tenth resistance R 10, this input connects power circuit through the 8th resistance (R8), the 9th resistance (R9) respectively, another input of Schmidt trigger F1 connects common port through the 3rd capacitor C 3, the emitter of the first triode VT1, the 4th capacitor C 4 another termination common ports, the first triode VT1 base stage connects the 7th resistance R 7.When first operational amplifier A, 1 output high level, one road signal triggers the first triode VT1 conducting through the 6th diode D6, the VT1 collector electrode becomes low level, the 4th capacitor C 4 is by 10 discharges of the tenth resistance R, promptly enter the time-delay stage, through about 30 seconds, when the C4 level is enough low, Schmidt trigger F1 upset output high level, the driving switch circuit.(4) switching circuit is made up of the second triode VT2, relay K, the high level signal of Schmidt trigger F1 output, through the 13 resistance R 13 to second triode VT2 base stages, make the second triode VT2 conducting, the relay K coil electricity that is connected with the second triode VT2 collector electrode, the relay K main contact is disconnected, the circuit of cutting off the electricity supply and powering to the load, the second triode VT2 emitter connects common port.Because the second triode VT2 conducting, the LED that together is serially connected in collector electrode with the 14 resistance R 14 extinguishes.The 8th diode D8 that forward is connected between collector electrode and the power supply is the protection diode.(5) audio alarm phonation circuit is made of the speech chip A3 that is connected, the 3rd triode VT3, step-up transformer T, acoustical generator HA.During first operational amplifier A, 1 output high level, another road signal triggers speech chip A3 through the 7th diode D7, the 15 resistance R 15, speech chip A3 output signal is through the 17 resistance R 17 to the 3rd triode VT3 base stages, speech chip sound is amplified, the step-up transformer T that is connected the 3rd triode VT3 collector electrode carries out impedance conversion, drive acoustical generator HA work, the audio alarm phonation circuit sends the audio alarm sound that rings in the time-delay stage, and the prompting user reduces the power supply load.The 18 resistance R 18, the second voltage-stabiliser tube V2, the 6th capacitor C 6 are formed the current limliting voltage stabilizing circuit, provide suitable working power to speech chip A3.Be loaded to setting range as reducing power supply in during reporting to the police, detect relatively back output low level through first operational amplifier A 1, the first triode VT1 ends, the 12V direct current charges to the 4th capacitor C 4 by the 8th resistance R 8, the tenth resistance R 10, Schmidt trigger F1 input remains on high level, and output low level, power supply continues to the user load normal power supply.Because first operational amplifier A, 1 output low level, speech chip A3 loses trigger current, and the 3rd triode VT3 ends, and acoustical generator HA stops to send audio alarm sound.The LED that is serially connected on the relay K coil is used for the operating state that display power supply powers to the load.(6) power circuit has step-down current-limiting circuit, bridge rectifier, filter circuit and voltage stabilizing circuit.The step-down current-limiting circuit is made of the 6th resistance and the 5th capacitor C 5 of parallel connection, 220V AC power step-down current limliting to input, through bridge rectifier D 2～D5 rectification, 2 filtering of second capacitor C, after the voltage stabilizing circuit voltage stabilizing that the first voltage-stabiliser tube V1, the 19 resistance R 19, voltage stabilizing IC A2 (7812) constitute, export stable 12V DC power supply, give translation circuit, excess load testing circuit, time-delay control Driver Circuit, switching circuit, the power supply of audio alarm phonation circuit.Adopting capacitance decompression current-limiting type power circuit is in order to allow the long-term hanging wire work of circuit, to reduce heating and loss.At the elementary protective tube TA that is serially connected with of reactance transformer LH, be used to prevent load short circuits.
During use, the 220V AC power by the electric supply installation of limiting the quantity of that constitutes by the utility model with overload audio alarm to the load power supply of limiting the quantity of.When surpassing the output power of this circuit setting, send about 30 seconds audio alarm sound earlier, the prompting electricity consumption is excess load.Reduce output power to this circuit setting range in during audio alarm, circuit will stop to send audio alarm sound, normally power to user load.If after sending audio alarm sound, user load continues to be in overload state, and circuit will send audio alarm sound continuously, and after about 30 seconds, circuit cuts off power supply output automatically, stops to power to user load.After about 30 seconds, restore electricity again, if the user still at overload state, stops power supply continuing.The utility model has possessed the work of intelligent early-warning formula by time-delay control, has reduced the outage number of times.
Working method of the present utility model is expressed as follows: 1, power consumption equipment is after inserting 220V civil power loop, and the dsm controller of limiting the quantity of of the present utility model will automatically identify load and whether belong to illegal power consumption equipment; If 2 belong to the load in the gross power limited field, then normal power supply; If 3 loads that insert comprise dangerous high-power resistive electrothermal load such as Electric stove, immersion heater, electric heater, insulating pot, the dsm controller of the limiting the quantity of of the present utility model warning of will at first sounding; If the user disconnects the excess load load in this sets time of fire alarming (about 30 seconds), stop to report to the police at once, do not cut off the power supply; If the user does not remove the excess load load in time of fire alarming, then outage automatically restores electricity after the time-delay (about 30 seconds) again; If the user still at overload state, stops power supply continuing; After pulling out illegal high-power resistive electrothermal load, just recover continuously normal electricity consumption.
The dsm controller of limiting the quantity of of the present utility model has adopted the work of intelligent early-warning formula, has both reached purpose of saving, has reduced the outage number of times again, prevents fire, electric shock and other safety accidents.The utility model is mainly used in safety utilization of electric power and the economize on electricity that guarantees the public place.The utility model uses effectively energy savings, saving electricity consumption spending, especially reduces the generation of dangerous power consumption equipment hidden danger.
As most preferred embodiment, technical parameter of the present utility model: operating voltage: AC220V/50Hz, load Control current 0.5-10A can set, maximum current 15A, nominal load: 110-2200W, error ± 5%.Environment for use: temperature :-25 ℃～65 ℃, relative humidity is not more than 97%, non-corrosiveness gas, electro-conductive dust and explosive gas atmosphere, no strenuous vibration and jolting.
Claims (10)
1. dsm controller of limiting the quantity of is characterized in that: the described dsm controller of limiting the quantity of has translation circuit, excess load testing circuit, time-delay control Driver Circuit and the switching circuit that is linked in sequence.
2. the dsm controller of limiting the quantity of according to claim 1 is characterized in that: described excess load testing circuit, time-delay control Driver Circuit are connected with the audio alarm phonation circuit respectively.
3. the dsm controller of limiting the quantity of according to claim 2 is characterized in that: the described dsm controller of limiting the quantity of is provided with the power circuit into translation circuit, excess load testing circuit, time-delay control Driver Circuit, switching circuit and the power supply of audio alarm phonation circuit.
4. the dsm controller of limiting the quantity of according to claim 3, it is characterized in that: described translation circuit is provided with reactance transformer (LH), the elementary power supply that connects of reactance transformer (LH), the inferior utmost point is connected to the conversion diode (D1) that forward connects, and conversion diode (D1) negative pole is serially connected with the T shape circuit that first electric capacity (C1), first resistance (R1) and second resistance (R2) are formed.
5. the dsm controller of limiting the quantity of according to claim 4, it is characterized in that: described excess load testing circuit is provided with first operational amplifier (A1), first operational amplifier (A1) reverse input end connects power circuit through the 3rd resistance (R3), the 5th resistance (R5) respectively, positive input connects first resistance (R1) and second resistance (R2) link, and output is connected with positive input through the 4th resistance (R4).
6. the dsm controller of limiting the quantity of according to claim 5, it is characterized in that: described time-delay control Driver Circuit is provided with Schmidt trigger (F1), the collector electrode of first triode (VT1) connects Schmidt trigger (F1) input and the 4th electric capacity (C4) end through the tenth resistance (R10), this input is respectively through the 8th resistance (R8), the 9th resistance (R9) connects power circuit, another input of Schmidt trigger (F1) connects common port through the 3rd electric capacity (C3), the emitter of first triode (VT1), another termination common port of the 4th electric capacity (C4), first triode (VT1) base stage is through the 7th resistance (R7), oppositely the 6th diode (D6) of serial connection connects first operational amplifier (A1) output.
7. the dsm controller of limiting the quantity of according to claim 6, it is characterized in that: the base stage of second triode (VT2) of described switching circuit connects Schmidt trigger (F1) output through the 13 resistance (R13), collector connecting relay (K) coil of second triode (VT2), second triode (VT2) emitter connects common port.
8. the dsm controller of limiting the quantity of according to claim 7, it is characterized in that: the speech chip of described audio alarm phonation circuit (A3) input connects first operational amplifier (A1) output through the 7th diode (D7) of the 15 resistance (R15), reverse serial connection, speech chip (A3) output connects the 3rd triode (VT3) base stage through the 17 resistance (R17), and the 3rd triode (VT3) collector electrode connects acoustical generator (HA) through step-up transformer (T).
9. the dsm controller of limiting the quantity of according to claim 8 is characterized in that: described power circuit is made of step-down current-limiting circuit, bridge rectifier, filter circuit and voltage stabilizing circuit.
10. the dsm controller of limiting the quantity of according to claim 9 is characterized in that: be serially connected with light-emitting diode (LED) on described relay (K) coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201709148U CN201118192Y (en) | 2007-11-15 | 2007-11-15 | Controller for limiting power utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201709148U CN201118192Y (en) | 2007-11-15 | 2007-11-15 | Controller for limiting power utilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118192Y true CN201118192Y (en) | 2008-09-17 |
Family
ID=39992781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201709148U Expired - Fee Related CN201118192Y (en) | 2007-11-15 | 2007-11-15 | Controller for limiting power utilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118192Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389675A (en) * | 2013-08-07 | 2013-11-13 | 兰如根 | Voice prompt device for overload work of electric appliance |
| CN111130090A (en) * | 2019-11-29 | 2020-05-08 | 浙江大华技术股份有限公司 | Power receiving equipment control method and device, computer equipment and storage medium |
-
2007
- 2007-11-15 CN CNU2007201709148U patent/CN201118192Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389675A (en) * | 2013-08-07 | 2013-11-13 | 兰如根 | Voice prompt device for overload work of electric appliance |
| CN111130090A (en) * | 2019-11-29 | 2020-05-08 | 浙江大华技术股份有限公司 | Power receiving equipment control method and device, computer equipment and storage medium |
| CN111130090B (en) * | 2019-11-29 | 2022-01-11 | 浙江大华技术股份有限公司 | Power receiving equipment control method and device, computer equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080917 Termination date: 20101115 |