CN2422588Y - Electric water heater remote controlled by telephone - Google Patents

Abstract

The utility model relates to an electric water heater remotely controlled by a telephone. The utility model comprises a water storage tank type electric water heater and a control circuit, wherein, the control circuit is composed of a single-chip microcomputer, a ringing detection circuit, a simulative off-hook circuit, a two-tone signal detection circuit, a display circuit, a water temperature detection circuit, a water outlet and power cut detection circuit, a key detection circuit and a heating execution circuit; the ringing detection circuit, the simulative off-hook circuit, the two-tone signal detection circuit, the display circuit, the water temperature detection circuit, the water outlet and power cut detection circuit, the key detection circuit and the heating execution circuit are respectively connected with the input and the output end of the single-chip microcomputer; the control circuit is connected in parallel to a telephone line of a public telephone network. A user calls a house telephone at foreign lands, the single chip computer detects the ringing signals of a telephone to automatically start the simulative off-hook circuit, the two-tone signal detection circuit is controlled to detect passwords and operation codes sent by the user, and the utility model controls the turn-on and the turn-off of the electric water heater, etc. according to user's commands.

Description

The telephone remote electric heater

The utility model relates to a kind of household electrical appliance, relates to a kind of electric heater with telephone remote function or rather.

The applicant is at the Chinese patent 99205093.6 " bathroom warm-air type electric heating shower wall " of first to file, " 99205694.2 the water outlet breaker device of electric heater ", 99210897.7 " shower, dash to bathe, the combined type electrothermal shower wall of sauna bath " and 99248312.3 technical schemes such as " the computer trough electrical appliances of electric heater " all are that expanded functionality is made on applicant 98218253.8 " electric heating shower wall " patented technology basis formerly." the computer trough electrical appliance of electric heater " wherein comprising: mainly by chip microprocessor timing control circuit that constitutes and the manual input circuit that is attached thereto, water temperature testing circuit, water level detection circuit, water outlet power-off control circuit, heating executive circuit and display circuit.The user is by the manual input circuit of operation, press the program operation of establishment by all inputs of timing control circuit control, output signal, its internal clock circuit is when running to the trough electricity consumption and begin, to heating executive circuit output enabling signal, the enough big storage-type electric water heater of storage tank capacity is implemented the trough electricity consumption, bathe morning and one day hot water for the user provides; When running to trough electricity consumption end, again to heating executive circuit output stop signal, thus the computer trough electricity consumption of realization electric heater.A large amount of saving electricity charge are arranged and avoid the effect of peak period electricity consumption.

More than related electric heater, no matter be any, all be to adopt traditional manual control mode work, comprise certain frame for movement of manual control or manually control the Push And Release that certain electronic button is controlled electric heater.Two kinds of traditional manual control modes all require the user to be in same place with electric heater, i.e. user's direct control electric heater.

When the heating power of design electric heater, consider that family's electrical arrangement is unsuitable excessive, therefore the heating power of the electric heater of water storage box type is generally not high, thereby require the user must just open electric heater in one hour before use even two hours, at any time provide hot water for the user owing to can not resemble the gas heater, must use hot water to bring inconvenience to the user, and along with arrival of information age, time is more and more valuable for the mankind, people wish to start in the strange land at any time the electric heater in the family, so that once advancing that hot water can be used in the door and turn off to forget the electric heater of closing in the family in the strange land.

The purpose of this utility model is a kind of telephone remote electric heater of design, utilizes and generally realizes the advantage of public telephone line to the family in the present family, reaches the Remote purpose that electric heater was opened or closed in the strange land.

The purpose of this utility model is achieved in that a kind of telephone remote electric heater, comprise and contain water storage box type electric heater and the singlechip controller that heats executive circuit at least, it is characterized in that: also include ring detecting circuit, simulation circuit for answering and double-audio signal testing circuit; Ring detecting circuit connects public telephone network and described singlechip controller, carries telephone ring signal to singlechip controller; The simulation circuit for answering connects public telephone network and described singlechip controller, when singlechip controller output simulation off-hook enabling signal public telephone network is connected with the double-audio signal testing circuit; The double-audio signal testing circuit connects described singlechip controller and simulation circuit for answering, transports push button signalling from public telephone network to singlechip controller.

Also include the water temperature testing circuit, constitute by being arranged on the temperature sensor in the electric heater storage tank and connecting an impulse generator, impulse generator output connects described singlechip controller.

Also include key press detecting circuit, be made of key switch connection diode and resistance, the output of key press detecting circuit connects described singlechip controller.

Also include the water outlet power failure detection circuit, connect a transistor drive circuit by the photoelectrical coupler that is arranged on electric heater water outlet place and constitute, the output of transistor drive circuit connects described singlechip controller.

Also include display, connect charactron by the transistor driver and constitute, the input of transistor driver connects described singlechip controller.

Described ring detecting circuit connects photoelectrical coupler by diode bridge and constitutes.

Described simulation circuit for answering be one with relay as the transistor circuit that drives load, the normally opened contact of relay is serially connected between described public telephone network and described double-audio signal testing circuit.

Described double-audio signal testing circuit comprises and is used for detecting integrated circuit to the transistor circuit of public telephone network transmission feedback prompt tone with the double-audio signal that double-audio signal is converted to data signal.

The heating executive circuit of described electric heater includes with the transistor drive circuit of high power relay as load, the switch contact of high power relay is serially connected in the electric power loop of electrothermal tube, and the input of transistor driver circuit connects described singlechip controller.

The user dials phone in the family in the strange land by public telephone network, singlechip controller detects telephone ring signal by ring detecting circuit, when ringing number reaches the number of times that sets and does not have off-hook, singlechip controller just can think that thereby nobody starts the simulation circuit for answering automatically in the family, the double-audio signal testing circuit is connected with public telephone network, detect the double-audio signal that is implied with password and command code that the user sends by the strange land telephone key by the double-audio signal testing circuit, and convert data signal to and give singlechip controller identification, singlechip controller just can heat opening of executive circuit by the programme-control of presetting, close and set heat time heating time, heating-up temperature etc.

Telephone remote electric heater of the present utility model, be independent of outside the domestic telephone set, can be the user uses electric heater to provide convenience most effectively, no matter where, when the user is in, as long as in family, make a call, and can configure the time of use hot water and the temperature of hot water once the electric heater that can open or close in the family.Telephone remote electric heater of the present utility model still can keep the function of trough electricity consumption, with the using electricity wisely expense.

Further specify technology of the present utility model below in conjunction with embodiment and accompanying drawing.

Fig. 1 is the principle structure block diagram of the utility model telephone remote electric heater

Fig. 2 is the circuit diagram by the telephone remote electric heater of 1 principle enforcement

Fig. 3 is the utility model telephone remote electric heater charactron display floater schematic diagram

Referring to Fig. 1, telephone remote electric heater of the present utility model mainly comprises the water storage box type electric heater and is produced on the interior control circuit 10 of a control box that this control circuit is made up of with the ring detecting circuit 12 that is connected with the input/output end port of singlechip controller 11 respectively, simulation circuit for answering 13, double-audio signal testing circuit 14, display 15, water temperature testing circuit 16, water outlet power failure detection circuit 17, key press detecting circuit 18 and heating executive circuit 19 singlechip controller 11.Telephone set 20 and control circuit 10 and downlink connection are on telephone wire L1, the L2 of public telephone network, be that ring detecting circuit 12 all is connected on telephone wire L1, the L2 with simulation circuit for answering 13, simulate circuit for answering 13 simultaneously and also be connected with double-audio signal testing circuit 14,19 controls of heating executive circuit are arranged on the on/off of the interior electrothermal tube of storage tank in the electric heater 30.

Singlechip controller 11 is control core components of control circuit 10, when the user calls the telephone number of machine 20 in the strange land by public telephone network, singlechip controller 11 detects telephone ring signal by ring detecting circuit 12, when the user does not also have off-hook if detected phone ringing number of times surpasses default ringing number, singlechip controller 11 promptly starts simulation circuit for answering 13 simulation off-hooks automatically, make double-audio signal testing circuit 14 by simulation circuit for answering 13 and telephone wire L1, L2 connects, detect earlier from telephone wire L1, L2 and the password that sends from the strange land telephone set by the user, singlechip controller 11 continues the command code that acceptance is sent from the strange land telephone set by the user when judging that this password is consistent with the password that prestores, and press command code heating executive circuit 19 is implemented to open or shutoff operations, or carry out the heat time heating time of singlechip controller 11, heating-up temperature is provided with.

Ring detecting circuit 12 is used to detect incoming telephone signal, and send singlechip controller 11 with the ringing number of record, after singlechip controller 11 judges that ringing number reaches set point number, starts simulation circuit for answering 13 simulation off-hooks.The pick up the telephone action of microphone of simulation circuit for answering 13 imitation users, connect phone, for follow-up various operations provide path, make the user from the strange land telephone set send and by telephone wire L1, L2 the transmission password, command code be sent to double-audio signal testing circuit 14.

The double-audio signal that double-audio signal testing circuit 14 will contain password, opcode information is converted to the data signal that singlechip controller 11 can be discerned, and does further to analyze and handle for singlechip controller 11.

Water temperature testing circuit 16 will be converted to the data signal that singlechip controller 11 can be discerned by the variations in temperature signal that temperature sensor sends, and carry out temperature demonstration and temperature control for singlechip controller 11.

Water outlet power failure detection circuit 17 detects the water outlet signal by water outlet outage sensor, for singlechip controller 11 identifications, so that cut off the working power of electrothermal tube in the heating executive circuit 19 automatically before the electric heater water outlet, guarantees the safe handling of electric heater.

Key press detecting circuit 18 is used to detect the operation signal of user to button, comprise adjustment time, set water temperature, switch power save mode, switch communications status, switch electric heater and check setting value etc., finish control corresponding or demonstration for singlechip controller 11 according to this operation signal, as realizing multiple setting, comprising: be the energy-conservation the highest water temperature of storage tank that reduces by user's actual needs; Understand the water storage situation in the storage tank, to prevent excessive water etc.

In conjunction with display floater referring to Fig. 3, display 15 can carry out various states and show, comprise display setting water temperature, demonstration actual water temperature, demonstration time, demonstration power save mode, communications status, demonstration heated condition etc. and the setting of demonstration current time, setting in morning, setting at noon, setting in evening, setting at night etc.

Referring to Fig. 2, singlechip controller 11 adopts single-chip microcomputer IC1 (AT89C51).Water temperature testing circuit 16 connects an impulse generator and constitutes by being arranged on temperature sensor (not shown) in the storage tank, be connected with the P3.4 end of single-chip microcomputer, impulse generator is made of three NOT logic doors, change the impulse generator output signal frequency when water temperature changes, detect water temperature for singlechip controller.

Button J1, J2, J3 and diode thereof, pull-up resistor connect and compose key press detecting circuit 18, and three buttons are set can comprise switch key, energy-conservation key and communication/common key referring to Fig. 3, are connected with P3.2, P1.5, P1.6, the P1.7 end of single-chip microcomputer.

Ring detecting circuit 12 is connected and composed by diode bridge B1 and photoelectrical coupler IC4, is connected with the P3.3 end of single-chip microcomputer.

Simulation circuit for answering 13 connects relay R EL1 by transistor Q1 and constitutes, is connected with the P3.6 end of single-chip microcomputer, and when the P3.6 of single-chip microcomputer end is high level, transistor Q1 conducting, two normally opened contacts of relay R EL1 get electric adhesive.

Double-audio signal testing circuit 14 detects IC 2 (8870), transistor Q2 and peripheral cell thereof by double-audio signal and connects and composes, and be connected with P3.7, the P1.0 to P1.3 of single-chip microcomputer end, single-chip microcomputer sends prompt tone by P3.7 end to the public telephone network feedback, and is subjected to double-audio signal after digitlization by P1.0 to P1.3 termination.

Heating executive circuit 19 connects high power relay REL4 by transistor Q3 and constitutes, be connected with the P3.5 end of single-chip microcomputer, the normally opened contact of high power relay REL4 connects electrothermal tube and is serially connected in the ac power supply circuit, control heating when the P3.5 of single-chip microcomputer end output high level.

Display 15 connects group of four figures pipe by transistor Q4 to Q8 and constitutes, and is connected with the P2.0 to P2.7 and P0.2 to the P0.7 end of single-chip microcomputer.

Water outlet power-off control circuit 17 connects transistor Q10 by photoelectrical coupler WZ and forms, be connected with the P3.0 end of single-chip microcomputer, when the photoelectrical coupler WZ that is arranged on electric heater water outlet place senses out water state, export control signal by the P3.0 end to single-chip microcomputer by transistor Q10.

Transistor Q9 connects buzzer BEEF and constitutes audible alarm circuit.

During enforcement, control circuit 10 of the present utility model can be produced in the box of 146 * a 78 * 15mm, and is fixed on the anteriomedial of electric heater, on 98218253.8 Chinese patent products " electric heating shower wall ".Except that can implementing the telephone remote function, also can implement electricity using at the peak time function (software realization) simultaneously, to avoid the peak of power consumption on daytime, the balance household power, electric heater is set in heating after at 12 in evening, and keep using daytime hot water, not only can be the user and save electricity charge spending, also can alleviate the power supply energy imbalance of power supply department in the peak electricity consumption phase.In addition, also can in control circuit, increase the automatic testing circuit of water level, so that when the storage tank middle water level is lower than a certain position, close electric heater automatically, in order to avoid dry combustion method.

Telephone remote electric heater of the present utility model not only can be used for utilizing same operation principle and structure on the electric heater, also can be used for the telephone remote of other domestic electric appliance.

Claims (9)

1. a telephone remote electric heater comprises and contains water storage box type electric heater and the singlechip controller that heats executive circuit at least, it is characterized in that: also include ring detecting circuit, simulation circuit for answering and double-audio signal testing circuit; Ring detecting circuit connects public telephone network and described singlechip controller, carries telephone ring signal to singlechip controller; The simulation circuit for answering connects public telephone network and described singlechip controller, when singlechip controller output simulation off-hook enabling signal public telephone network is connected with the double-audio signal testing circuit; The double-audio signal testing circuit connects described singlechip controller and simulation circuit for answering, transports push button signalling from public telephone network to singlechip controller.

2. a kind of telephone remote electric heater according to claim 1, it is characterized in that: also include the water temperature testing circuit, constitute by being arranged on the temperature sensor in the electric heater storage tank and connecting an impulse generator, impulse generator output connects described singlechip controller.

3. a kind of telephone remote electric heater according to claim 1 is characterized in that: also include key press detecting circuit, be made of key switch connection diode and resistance, the output of key press detecting circuit connects described singlechip controller.

4. a kind of telephone remote electric heater according to claim 1, it is characterized in that: also include the water outlet power failure detection circuit, connect a transistor drive circuit by the photoelectrical coupler that is arranged on electric heater water outlet place and constitute, the output of transistor drive circuit connects described singlechip controller.

5. a kind of telephone remote electric heater according to claim 1 is characterized in that: also include display, connect charactron by the transistor driver and constitute, the input of transistor driver connects described singlechip controller.

6. a kind of telephone remote electric heater according to claim 1 is characterized in that: described ring detecting circuit connects photoelectrical coupler by diode bridge and constitutes.

7. a kind of telephone remote electric heater according to claim 1, it is characterized in that: described simulation circuit for answering be one with relay as the transistor circuit that drives load, the normally opened contact of relay is serially connected between described public telephone network and described double-audio signal testing circuit.

8. a kind of telephone remote electric heater according to claim 1 is characterized in that: described double-audio signal testing circuit comprises and is used for detecting integrated circuit to the transistor circuit of public telephone network transmission feedback prompt tone with the double-audio signal that double-audio signal is converted to data signal.

9. according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 described a kind of telephone remote electric heaters, it is characterized in that: the heating executive circuit of described electric heater includes with the transistor drive circuit of high power relay as load, the switch contact of high power relay is serially connected in the electric power loop of electrothermal tube, and the input of transistor driver circuit connects described singlechip controller.

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