CN207214225U

CN207214225U - A kind of electric heating system

Info

Publication number: CN207214225U
Application number: CN201721190321.8U
Authority: CN
Inventors: 赵东安
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2018-04-10
Anticipated expiration: 2027-09-15

Abstract

The utility model discloses a kind of electric heating system, including air switch, control unit, transformer and electric heating device；The input of the air switch is connected with external ac power source, the output end of the air switch and the input of described control unit connect, the output end of described control unit is connected with the primary coil of the transformer, and the secondary coil of the transformer is connected with the electric heating device；Its effect is：Isolated from power and voltage transformation are carried out by using transformer, by the safe voltage 36V that the 220V voltage drops for having harm of getting an electric shock are human body, avoid injury of being got an electric shock caused by false touch is touched, improve its security used, and the voltage class used is low, corresponding power consumption can be reduced, has also haveed the function that energy-saving and environmental protection.

Description

A kind of electric heating system

Technical field

The utility model belongs to indoor heating technical field, and in particular to a kind of electric heating system.

Background technology

As living standards of the people constantly improve, and constantly advocate and use green energy resource, electric heating device is progressively come into The life of the people.Existing electric heating device directly using municipal electricity consumption is exchanged, easily occurs because of electric wire in use mostly There is the situation of error shock in insulation ag(e)ing, and particularly in households with the situation of children, child likes tampering everywhere, so as to cause to use Hidden danger, its security performance need further to be improved.

The content of the invention

In order to solve the above problems, the purpose of this utility model is to provide a kind of electric heating system, overcomes in the prior art The defects of electric shock injury occurs.

The technical scheme that the utility model is taken is：A kind of electric heating system, including air switch, control unit, transformation Device and electric heating device；The input of the air switch is connected with external ac power source, the output end of the air switch and institute The input connection of control unit is stated, the output end of described control unit is connected with the primary coil of the transformer, the change The secondary coil of depressor is connected with the electric heating device.

Compared with prior art, a kind of electric heating system provided by the utility model has the advantages that：

Isolated from power is carried out by transformer, the safe voltage for being 36v exchange 220v voltage transformations, supplied to electric heating device Electricity, 36v and following voltage belong to safe voltage, and human or animal touches this safe voltage, and the accident injured of getting an electric shock will not occur, Improve its security used.

Preferably, PPTC resistance and light-emitting diodes are connected between the secondary coil of the transformer and the electric heating device Pipe, one end of the secondary coil are connected with one end of the PPTC resistance, and the other end of the PPTC resistance lights with described The negative electrode connection of diode, the anode of the light emitting diode are connected with the other end of the secondary coil；So set and cause Electric heating device can be indicated by light emitting diode at work, while when the situation of overcurrent occurs in circuit, PPTC is electric The heating power of resistance is more than heat radiation power, now the temperature of the resistance will start constantly rise, cause resistance value to rise, from rather than The electric current in circuit is often significantly reduced, further increasing its security used.

Preferably, described control unit uses temperature controller；It is so simple, practical, it is workable.

Preferably, described control unit includes temperature sensor, temperature collection circuit, A/D modular converters, controller, drive Dynamic model block and display screen；After the temperature sensor, temperature collection circuit and A/D modular converters are sequentially connected, with the control The input connection of device, the controller include multiple output ends, and the multiple output end is respectively with the drive module and showing Display screen connects.

Preferably, the drive module includes photoelectrical coupler MOC3041, power supply VCC, resistance R1, resistance R2, resistance R3 With bidirectional thyristor Q1, the controller output has drive signal, and the second pin of the drive signal and the MOC3041 connects Connect, power supply VCC is connected after concatenating the resistance R1 with the first pin of the MOC3041, the 6th pin string of the MOC3041 Be connected after meeting the resistance R2 with the main electrode T1 of the bidirectional thyristor Q1, the 4th pin of the MOC3041 with it is described double Connected to the gate pole of IGCT, the one end of the 4th pin of the MOC3041 also with the resistance R3 is connected, the resistance R3's The other end is connected with the main electrode T2 of the bidirectional thyristor Q1.

Preferably, the electric heating device uses carbon-fiber electric heater；By so setting using single side radiation heating technique, Front heating, the back side do not generate heat, can be attached on metope, are not take up extra use space, are especially suitable for heating of house.

Using above-mentioned technical proposal, there is advantages below：The utility model proposes a kind of electric heating system, including air Switch, control unit, transformer and electric heating device；The input of the air switch is connected with external ac power source, the sky The output end of air cock and the input of described control unit connect, and the output end of described control unit is first with the transformer Level coil connection, the secondary coil of the transformer are connected with the electric heating device；Isolated from power is carried out by transformer, friendship The safe voltage that 220v voltage transformations are 36v is flowed, is powered to electric heating device, 36v and following voltage belong to safe voltage, people or dynamic Thing touches this safe voltage, and the accident injured of getting an electric shock will not occur, improve its security used.

Brief description of the drawings

Fig. 1 is structure connection diagram of the present utility model；

Fig. 2 is the connection diagram of control unit in the utility model；

Fig. 3 is the circuit theory diagrams of drive module in the utility model.

Embodiment

To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing And specific embodiment is described in detail, description here is not meant that corresponding to all of the instantiation stated in embodiment Theme all refer in the claims.

With reference to shown in figure 1, a kind of electric heating system, including air switch 1, control unit 2, transformer 3 and electric heating device 4；The input of the air switch 1 is connected with external ac power source, the output end and described control unit of the air switch 1 2 input connection, the output end of described control unit 2 are connected with the primary coil of the transformer 3, the transformer 3 Secondary coil is connected with the electric heating device 4；In the present embodiment, the air switch 1 is the two poles of the earth air switch, and what is connect is outer Portion's AC power is alternating current 220V, and isolated from power and voltage transformation are carried out by using transformer, will have the 220V for harm of getting an electric shock Voltage drop is the safe voltage 36V of human body, avoids injury of being got an electric shock caused by false touch is touched, improves its security used, And the voltage class used is low, corresponding power consumption can be reduced, has also haveed the function that energy-saving and environmental protection.

Further, for the reliability for improving its security performance and using, the secondary coil of the transformer 3 with it is described PPTC resistance 5 and light emitting diode 6, one end of the secondary coil and the PPTC resistance 5 are connected between electric heating device 4 One end is connected, and the other end of the PPTC resistance 5 is connected with the negative electrode of the light emitting diode 6, the sun of the light emitting diode 6 Pole is connected with the other end of the secondary coil；So so that electric heating device 4 can be referred to by light emitting diode at work Show, remind people to pay attention to, while when the situation of overcurrent occurs in circuit, the heating power of PPTC resistance 5 is more than heat radiation power, Now the temperature of the resistance will start constantly rise, cause resistance value to rise, so as to effectively reduce the electricity in circuit The heating of stream and circuit.

Further, with reference to shown in figure 2, described control unit includes temperature sensor, temperature collection circuit, A/D conversions Module, controller, drive module and display screen；The temperature sensor, temperature collection circuit and A/D modular converters are sequentially connected Afterwards, the input with the controller is connected, and the controller includes multiple output ends, the multiple output end respectively with it is described Drive module connects with display screen；In actual applications, the temperature sensor can use PT100 or LM35, A/D modulus of conversion Block can use model ADC0809 chip, and controller can use single-chip microcomputer, and display screen can use LCD display, the display screen Can display environment temperature and set temperature, decoder is also set up between single-chip microcomputer and display screen, the decoder can use 74LS138。

Further, the input of controller is also associated with load button, and output end is also associated with alarm set, by defeated The setting of associated temperature or the time control of break-make can be carried out by entering button, and alarm set can use buzzer or indicator lamp, online When road occurs abnormal, warning reminding is carried out.

Further, with reference to shown in figure 3, the drive module includes photoelectrical coupler MOC3041, power supply VCC, resistance R1, resistance R2, resistance R3 and bidirectional thyristor Q1, the controller output have a drive signal, the drive signal with it is described MOC3041 second pin connection, power supply VCC is connected after concatenating the resistance R1 with the first pin of the MOC3041, described MOC3041 the 6th pin is connected after concatenating the resistance R2 with the main electrode T1 of the bidirectional thyristor Q1, the MOC3041 The 4th pin be connected with the gate pole of the bidirectional thyristor, the 4th pin of the MOC3041 also with the resistance R3 one End connection, the other end of the resistance R3 are connected with the main electrode T2 of the bidirectional thyristor Q1；So can be square by controller Just the input of primary transformer coil power supply is controlled, so as to control the on/off of electric heating device power supply.

Further, to facilitate installation, being not take up the extra space that uses, the electric heating device is using carbon fiber electrically heated Device；The carbon-fiber electric heater uses single side radiation heating technique, and front heating, the back side does not generate heat, can be attached on metope.

In actual applications, described control unit can use temperature controller；Can by the utility model be applied to family, unit and The place of the children's activities such as some public places, especially school and kindergarten, its electric shock injury that may occur is avoided, and And the power consumed is low, there is energy-conserving and environment-protective, using promoting the use of.

Here, it is to be noted that, the function that the utility model is related to, algorithm, method etc. are only the routine of prior art Adaptability application.Therefore, improvement of the utility model for prior art, the annexation being substantially between hardware, rather than For function, algorithm, method in itself, namely although the utility model is related to some functions, algorithm, method, but and not comprising pair The improvement that function, algorithm, method propose in itself.The utility model is in order to more preferable for function, the description of algorithm, method Illustrate the utility model, to be better understood from the utility model.

Finally it should be noted that foregoing description is preferred embodiment of the present utility model, the ordinary skill people of this area Member on the premise of without prejudice to the utility model aims and claim, can make a variety of under enlightenment of the present utility model Similar expression, such conversion are each fallen within the scope of protection of the utility model.

Claims

1. a kind of electric heating system, it is characterised in that including air switch, control unit, transformer and electric heating device；The sky The input of air cock is connected with external ac power source, and the output end of the air switch and the input of described control unit connect Connect, the output end of described control unit is connected with the primary coil of the transformer, the secondary coil of the transformer with it is described Electric heating device connection.

A kind of 2. electric heating system according to claim 1, it is characterised in that the secondary coil of the transformer with it is described PPTC resistance and light emitting diode, one end of the secondary coil and one end of the PPTC resistance are connected between electric heating device Connection, the other end of the PPTC resistance are connected with the negative electrode of the light emitting diode, the anode of the light emitting diode and institute State the other end connection of secondary coil.

3. a kind of electric heating system according to claim 2, it is characterised in that described control unit uses temperature controller.

4. a kind of electric heating system according to claim 2, it is characterised in that described control unit includes TEMP Device, temperature collection circuit, A/D modular converters, controller, drive module and display screen；The temperature sensor, temperature acquisition electricity After road and A/D modular converters are sequentially connected, it is connected with the input of the controller, the controller includes multiple output ends, The multiple output end is connected with the drive module and display screen respectively.

5. a kind of electric heating system according to claim 4, it is characterised in that the drive module includes photoelectrical coupler MOC3041, power supply VCC, resistance R1, resistance R2, resistance R3 and bidirectional thyristor Q1, the controller output have drive signal, The drive signal is connected with the second pin of the MOC3041, power supply VCC concatenate after the resistance R1 with the MOC3041 The connection of the first pin, the 6th pin of the MOC3041 concatenates the main electricity with the bidirectional thyristor Q1 after the resistance R2 Pole T1 connections, the 4th pin of the MOC3041 are connected with the gate pole of the bidirectional thyristor, and the 4th of the MOC3041 draws The one end of pin also with the resistance R3 is connected, and the main electrode T2 of the other end of the resistance R3 and the bidirectional thyristor Q1 connects Connect.

6. a kind of electric heating system according to claim 1, it is characterised in that the electric heating device is using carbon fiber electrically heated Device.