CN215637527U - Take room heater circuit of UV function of killing - Google Patents

Abstract

The utility model discloses a heater circuit with a UV (ultraviolet) sterilization function, which relates to the related technical field of heater circuits and comprises a power supply circuit and a clock circuit, wherein the output ends of the power supply circuit and the clock circuit are connected with a central controller, the output end of the central controller is connected with a nixie tube display circuit, a relay heating circuit, a UV circuit, a silicon controlled circuit and a touch key circuit, the input end of the central controller is connected with a temperature sensor through a lead, the air inlet of a heater is connected with a UV sterilization lamp to realize the air sterilization, the power supply circuit is provided with a 220V interface, the 220V interface is connected with commercial power, the output end of the power supply circuit is connected with a voltage reduction circuit, and the output end of the voltage reduction circuit supplies power for a relay in the relay heating circuit. Through the cooperation of above each electrical components use, can carry out the control by temperature change to the room heater to can carry out the sterilization to the inside circulating air of room heater, reduce the air peculiar smell, clean air makes the environment more comfortable.

Description

Take room heater circuit of UV function of killing

Technical Field

The utility model relates to the technical field related to heater circuits, in particular to a heater circuit with a UV (ultraviolet) disinfection function.

Background

The room heater is comparatively common commodity in the market, but use the solidification, parameter adjustment nature is poor, and cause breeding of bacterium easily after long-time operation, it is along with the peculiar smell that can accompany when the room heater moves once more along with to follow, seriously influence the normal use and the use of room heater and experience, and because the parameter adjustment nature of current room heater is relatively poor, make the room heater be difficult to realize comparatively accurate control by temperature change, or high-grade heats and the low-grade difference is great between heating, there is the problem that can't satisfy the demand of heating. Therefore especially provide one kind can prevent effectively that room heater from producing peculiar smell and bacterial growing, can clean the air to can carry out accurate parameter regulation and control, promote the room heater circuit of taking the UV function of killing that uses experience, with the above-mentioned problem of solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a warmer circuit with a UV disinfection function, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a take room heater circuit of UV function of killing, includes power supply circuit and clock circuit, and power supply circuit and clock circuit's output is connected with central controller, and central controller's output is connected with charactron display circuit, relay heating circuit, UV circuit, silicon controlled rectifier circuit and touch button circuit, and central controller's input is connected with temperature sensor through the wire, and the air intake connection of room heater has the UV lamp of killing, realizes killing the air.

Preferably, power supply circuit is provided with 220V's interface, and 220V's interface and mains connection, and power supply circuit's output is connected with step-down circuit, and step-down circuit's output is the relay power supply in the relay heating circuit, increases the acquisition scope of power.

Preferably, the inside of room heater is provided with the yaw motor, and the input of yaw motor passes through the wire and is connected with touch key circuit's output, realizes the increase of heating scope.

Preferably, the UV circuit comprises a triode and an MOS (metal oxide semiconductor) tube, and the characteristic of the MOS tube is utilized, so that on one hand, the heating of the triode can be reduced, and on the other hand, the switch of the UV lamp can be effectively controlled.

Preferably, a voltage dividing resistor is arranged in a circuit of the temperature sensor, so that the accuracy of temperature sampling can be improved.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model discloses a heater circuit with a UV (ultraviolet) sterilization function, which can adjust heating temperature by touching a key, transfer heat from an air outlet to air by a fan, set the heating temperature by the key so as to realize dynamic adjustment and heating, realize dynamic balance of indoor temperature by a relay and a temperature sensor according to a temperature threshold value, install a UV sterilization lamp in an air inlet to sterilize air, thereby ensuring fresh air at the air outlet, and enable a heater to swing by touching the key so as to expand the heating range and rapidly improve the room temperature.

Drawings

FIG. 1 is a schematic block diagram of a circuit according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a voltage step-down circuit according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a touch button circuit according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a thyristor circuit according to an embodiment of the utility model;

FIG. 5 is a schematic diagram of a UV lamp circuit according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a relay circuit according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an NTC circuit according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a nixie tube circuit according to an embodiment of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 8, the present embodiment provides a heater circuit with a UV disinfection function, which includes a power circuit and a clock circuit, wherein output ends of the power circuit and the clock circuit are connected to a central controller, the central controller is an MCU in the prior art, the MCU dynamically adjusts heating by comparing a real-time temperature measured by an NTC sensor (i.e., a temperature sensor) with a set temperature, and when the temperature exceeds a threshold value, a relay is turned off, and when the temperature is lower than the set temperature, the relay is turned on to achieve dynamic balance of indoor temperature.

The output end of the central controller is connected with a nixie tube display circuit, a relay heating circuit, a UV circuit, a silicon-controlled circuit and a touch key circuit, the input end of the central controller is connected with a temperature sensor through a lead, and the air inlet of the warmer is connected with a UV killing lamp.

Wherein, through the touch button, can adjust heating temperature, spread the heat from the air outlet to the air through the fan, can set up heating temperature through the button, pack into the UV lamp that kills in the air intake, disinfect to the air, thereby guarantee the air freshening of air outlet, through the touch button, can also make the room heater yaw, thereby enlarge heating range, improve the room temperature rapidly.

In the design process, in order to reduce the cost, when the single chip microcomputer selects the type, the single chip microcomputer with the touch function is adopted, the cost is reduced, the circuit is simplified, the circuit is more stable, on the other hand, the key backlight mode is adopted, the man-machine interaction capacity is improved, the attractiveness is increased, the keys and the backlight lamps respectively adopt different IO interfaces, each key is provided with one backlight lamp independently, the keys do not interfere with each other, and the operation is not influenced when the single chip microcomputer works at night.

BT131 is the bidirectional thyristor, and the encapsulation is SOT23 encapsulation, can directly trigger the silicon controlled rectifier through the singlechip and open, need not to add other circuits, reduce the cost, only need trigger the foot voltage and be greater than ACL voltage gold and just can open the silicon controlled rectifier, realize the yaw of motor, increase the irradiation scope of room heater, because the adoption be non-isolated power supply scheme, be about to ACL as entire system's GND, only need the singlechip give the high level, just can guarantee to trigger the foot voltage and be greater than ACL voltage, thereby the silicon controlled rectifier normally works.

The design adopts the singlechip to directly drive the nixie tube, a driving chip is omitted, a circuit is simplified, and the singlechip adopts SC92F8463B of Saiyuan to meet the requirement of driving the nixie tube.

For the start of the UV lamp, a triode and MOS tube mode is adopted, the single chip microcomputer gives a high level signal to turn on Q2, so that a potential difference is generated between a grid electrode and a source electrode of Q1, and according to the PMOS characteristic, the drain electrode voltage is 12V, and the UV lamp is lighted. Through the triode and MOS's form, can alleviate the generating heat of triode on the one hand, on the other hand also can effectual control UV lamp's switch.

Because singlechip driving capability is relatively weak, when control relay, adopt the form of triode, increase the driving capability for the switch that the relay can be normal, thereby guarantee the normal of function. On the other hand, because the coil exists in the relay, transient high voltage exists at the moment of switching-on and switching-off, so that diodes are reversely connected to two ends of the relay, and the stability of the circuit is ensured.

Preferably, the scheme also provides an energy-saving mode, and the equipment is in the energy-saving mode through the touch key so as to reduce the electric energy loss.

The power supply circuit is provided with a 220V interface, the 220V interface is connected with a mains supply, the output end of the power supply circuit is connected with a voltage reduction circuit, and the output end of the voltage reduction circuit supplies power to a relay in the relay heating circuit.

The voltage reduction circuit is an ACDC circuit commonly used in the prior art, the voltage is converted into DC12V through the ACDC circuit so as to supply power to the relay, and then the DC12V is converted into DC5V through the LM7805 so as to supply power to the single chip microcomputer.

The working power supply of the total circuit board is 5V and 12V and is directly input to the power panel; the relay circuit supplies power for 12V, and the single chip microcomputer circuit supplies power for 5V, therefore changes 12V into the 5V power through LDO and supplies power for the single chip microcomputer, and LM7805 power conversion chip output voltage precision is 4.8V ~5.2V, and the output current maximum value is 500mA, satisfies single chip microcomputer work needs to can provide sufficient power allowance.

LM7805 is a peripheral element required by a prior art LM78/LM79 series three-terminal voltage-stabilizing IC to form a voltage-stabilizing power supply.

The inside of room heater is provided with the yaw motor, and the input of yaw motor passes through the wire and is connected with touch key circuit's output.

The UV circuit comprises a triode and an MOS tube.

A voltage dividing resistor is arranged in a circuit of the temperature sensor, after 5V voltage is divided by the temperature sensor and the resistor R18, the single chip microcomputer carries out AD sampling, real-time temperature is detected by an ADC sampling comparison sensor temperature-resistance comparison table, and 1% of resistor is adopted by R18 to ensure sampling precision.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a take room heater circuit of UV function of killing, includes power supply circuit and clock circuit, its characterized in that: the output ends of the power supply circuit and the clock circuit are connected with a central controller, the output end of the central controller is connected with a nixie tube display circuit, a relay heating circuit, a UV circuit, a silicon controlled circuit and a touch key circuit, the input end of the central controller is connected with a temperature sensor through a lead, and the air inlet of the warmer is connected with a UV killing lamp.

2. A heater circuit with UV killing function as claimed in claim 1, wherein: the power supply circuit is provided with 220V's interface, and 220V's interface and commercial power connection, power supply circuit's output is connected with step-down circuit, step-down circuit's output is the relay power supply in the relay heating circuit.

3. A heater circuit with UV killing function as claimed in claim 1, wherein: the inside of room heater is provided with the yaw motor, and the input of yaw motor passes through the wire and is connected with touch key circuit's output.

4. A heater circuit with UV killing function as claimed in claim 1, wherein: the UV circuit comprises a triode and an MOS tube.

5. A heater circuit with UV killing function as claimed in claim 1, wherein: and a voltage dividing resistor is arranged in a circuit of the temperature sensor.

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