KR101217487B1 - Fan heater using induction heating - Google Patents

Abstract

The present invention relates to a hot air fan using induction heating, which can be set to a desired temperature within a short time by using induction heating to blow hot air, and induction heating improves power efficiency and enhances user convenience by using a resonant inverter. It relates to a hot air fan using.
The configuration of the present invention, the blower; An induction heating unit coupled to the blower to heat and discharge wind generated from the blower; And a power converter configured to heat the inside of the induction heating unit by generating a magnetic flux by applying a high frequency. The induction heating unit includes an inlet coupled to one side and an exhaust coupled to the other side. A body communicating with the exhaust part and having stepped upper and lower portions of the outer circumferential surface, respectively; An insulating medium coupled to the outer circumference of the body; And a coil wound on an outer circumferential surface of the insulating medium.

Description

Fan heater using induction heating {FAN HEATER USING INDUCTION HEATING}

The present invention relates to a hot air fan using induction heating, and more particularly, it is possible to minimize the power consumed through the resonant inverter, and the hot air heated to the desired temperature desired by the user in a short time using induction heating with only minimal energy. The present invention relates to a hot air blower using induction heating that can blow air, thereby improving energy saving and user convenience.

In general, as income levels improve, there is an increasing demand for consumers who want a more comfortable and clean indoor environment in winter.

Therefore, there is a great interest in an electric hot air fan, which is much more comfortable than a conventional hot air fan that consumes oxygen and generates combustion gas by using oil or gas as a fuel.

Conventional electric heaters mainly use air heating using joule heating, which is generated by directly flowing current to a resistor, such as a heating element using nichrome wire, a ceramic heating element using a resistance of a thin metal film on a ceramic surface, or a carbon heating element using a carbon resistance. Adjust the room temperature by heating it.

However, the conventional general electric hot air heater has the disadvantage that the heat supply capacity and energy efficiency of the hot air heater is very low due to the structurally small contact area and heat conductivity of the heating element and air. Mainly used.

However, as the income level increases recently, the demand for a comfortable indoor environment is rapidly increasing, and accordingly, a power-saving electric hot air fan using an improved ceramic heating element or heat pipe (HEAT-PIPE) is gradually being distributed to homes. However, it is still required to pay more power bills than gas heaters or fan heaters.

However, the advantages of the electric heater are not only easy to use as a wall-mounting type that is easy to manage, but also have a low risk of accidents and rapid heating. Attention is increasing steadily.

The present invention has been made to solve the conventional problems as described above, the main object of the present invention is not only to minimize the loss of electric energy by using a resonant inverter, but also to heat the air in a short time using induction heating The purpose is to provide a hot air fan using induction heating that can be blown by.

Still another object of the present invention is to provide a hot air fan using induction heating that uses electric energy that does not use fossil fuel and solves the source of pollution.

In order to achieve the above object, the hot air blower using the induction heating of the present invention, a blower; An induction heating unit coupled to the blower to heat and discharge wind generated from the blower; And a power converter configured to heat the inside of the induction heating unit by generating a magnetic flux by applying a high frequency. The induction heating unit includes an inlet coupled to one side and an exhaust coupled to the other side. A body communicating with the exhaust part and having stepped upper and lower portions of the outer circumferential surface, respectively; An insulating medium coupled to the outer circumference of the body; And a coil wound around an outer circumferential surface of the insulating medium.

At this time, the induction heating unit is formed with a hole in the direction of the wind transfer inside, the body having an upper seating jaw and a lower seating jaw on the inner peripheral surface; It is formed so as not to interfere with the transport of the wind is coupled to the upper seating jaw and the lower seating jaw, a heating medium made of a metal body of SUS 40 series having a magnetic; And a coil wound on an outer circumferential surface of the body and connected to the power conversion unit.

The power converter may include: a rectifier configured to convert AC power input into DC power; Filter unit for filtering the noise of the input power; A resonance inverter for heating the inside of the induction heating unit by generating a magnetic flux by applying a high frequency; A control unit controlling a frequency of the resonant inverter; And a PID controller for transmitting the output value of the resonant inverter to the controller.

On the other hand, the blower, the induction heating unit and the power conversion unit is built-in, a blower formed to transfer the wind discharged from the induction heating unit and a plurality of control buttons connected to the power conversion unit and the blower It is characterized in that the housing is made further.

According to the present invention as described above, by using electric energy without using fossil fuel, not only generate air pollutants, but also increase the power conversion efficiency by using a resonant inverter, and also by using induction heating in a short time By heating the heating medium, the user can blow the wind of the desired temperature, thereby increasing the user's convenience, and by making a simple structure, it is possible to reduce the size and weight of the device.

1 is a perspective view of a product according to an embodiment of a warm air heater using induction heating according to the present invention;
2 is a configuration diagram of an operating state according to an embodiment of a warm air heater using induction heating according to the present invention;
Figure 3 is a cross-sectional view according to an embodiment of the induction heating means of the warm air fan using induction heating according to the present invention,
4 is a perspective view of an induction heating unit according to another embodiment of a warm air heater using induction heating according to the present invention;
5 is a cross-sectional view of an induction heating unit according to another embodiment of a warm air heater using induction heating according to the present invention;
6 is a schematic configuration diagram according to an embodiment of the power conversion unit according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, as illustrated in FIGS. 1, 2, 4, and 5, a blower 100 configured of at least one fan motor or the like; An induction heating part 200 coupled to the blower 100 to discharge and heat the wind generated from the blower 100; And a power converter 300 which indirectly heats the inside of the induction heating unit 200 by generating a magnetic flux by applying a high frequency. The induction heating unit 200 is formed in a direction of conveying wind therein. A hole is formed and a body 210 having an upper seating jaw 211 and a lower seating jaw 212 on an inner circumferential surface thereof; A heating medium 220 coupled to the upper seating jaw 211 and the lower seating jaw 212 and made of a SUS 40-based metal body having magnetic properties; And a coil 240 wound on an outer circumferential surface of the body 210 and connected to the power converter 300.

In addition, as shown in Figure 1, the blower 100, the induction heating unit 200 and the power conversion unit 300 is installed, the wind discharged from the induction heating unit 200 to the outside It further comprises a housing 400 formed of a blower 410 formed to be transported, the power converter 300 and a plurality of control buttons 420 connected to the blower 100.

In addition, the induction heating unit 200, as shown in Figure 3, the upper seating jaw 211 and the lower seating jaw 212 in the upper and lower inner peripheral surface of the body 210 'having a pipe shape formed of a ceramic material ) Is formed, and the heating medium 220 having a plurality of holes is seated on and supported by the upper seating jaw 211 and the lower seating jaw 212.

In this case, a plurality of heat generating pieces may be included in the heat generating medium 220. The heat generating medium 220 may be manufactured in various shapes, but the wind transferred from the blower 100 may be easily passed. In addition, the heating medium 220 and the heating piece is preferably composed of a SUS 40 series metal body having magnetic properties.

In addition, the coil 240 'or the Ritz wire is formed on the outer circumferential surface of the body 210' to have a length corresponding to the vertical length of the heating medium 220 seated and coupled to the inner circumferential surface of the body 210. .

In addition, as shown in FIGS. 4 and 5, the induction heating unit 200 has an inlet 213 having a hole formed therein in a length direction on one side thereof, and a hole formed in the length direction on the other side thereof. The exhaust part 214 is coupled, and the stepped portion 215 is formed on the outer circumferential surface of the body 210 having holes therein so as to communicate with the inlet part 213 and the hole of the exhaust part 214. The lower mounting jaw may be further formed.

An insulating medium 230 having an insulating property is coupled to the step 215, and a Ritz wire (coil) coated with an insulating material is wound on an outer circumferential surface of the insulating medium 230.

In this case, a separate heating medium is not coupled to the inside of the body 210, and the body 210 is made of a SUS 40 series metal body having magnetic properties, and the body 210 itself serves as a heating medium. The body 210 is inductively heated by the length of the upper and lower windings of the Ritz wire.

On the other hand, as shown in Figures 2 and 6, the power converter 300 includes a rectifier 310 for converting the input AC power to DC power; Filter unit 320 for filtering the noise of the input power; Resonant inverter 330 for heating the inside of the induction heating unit 200 by generating a magnetic flux by applying a high frequency; A controller 340 for controlling the frequency of the resonant inverter 330; And a PID controller 350 for transmitting the output value of the resonant inverter 330 to the control unit 340.

The rectifier 310 is connected to the input line filter 320 to block the normal noise flowing from the commercial power source AC220V / AC110V.

A rectifier of a bridge module type for rectifying an alternating current is connected to the filter unit 320, and the resonant inverter 330 includes an IGBT or MOS FET, which is a power conversion semiconductor switching element, and a burner circuit.

In addition, the resonant inverter 330 that transmits the switched high frequency to the coil 240 uses the coil 240 as a resonant load (inductor), and is provided with a ceramic capacitor.

Therefore, exactly the coil 240 will be included in the resonant inverter 330, but for the structural description, the coil 240 has been described as being included in the induction heating unit 200.

In this case, a PID (Proportional Integral Derivative) controller 350 for transmitting the output value of the resonant inverter 330 to the controller 340 is further provided, and the controller 340 uses a digital signal processor (DSP). The temperature is controlled by controlling the resonant frequency to 20-50 Hz according to the output value of the resonant inverter 330. (The lower the frequency, the higher the maximum value is output and the higher the frequency, the lower the minimum value is output. Lowers)

In addition, the controller 340 operates to turn on / off a circuit according to an abnormal voltage, an abnormal current, and a temperature value.

That is, when the resonance point is over, the L value and the C value change, so that the divergence phenomenon occurs and the frequency is lowered and the overcurrent flows because the current value is increased to compensate for this as the frequency is lowered. Since the current value increases as it is changed, the current value is sensed and processed accordingly.

According to the present invention, when the heating fan is operated by setting the desired temperature through the control button 420, power is applied to the coil 240 to generate magnetic flux, and the heating medium 220 seated inside the body 210. ) Is heated, the wind transferred through the fan motor is heated through the heating medium 220 is discharged to the blower 410 through the blower 100.

In addition, when the user sets to the desired temperature, the frequency is controlled through the control button 420 connected to the control unit 340, this is adjusted to the frequency of the resonant inverter 330, and the temperature is adjusted to blow do.

100: blower
200: induction heating unit
210, 210 ': Body 211: Upper seating jaw
212: lower seating jaw 213: inlet
214: exhaust 215: step
220: heating medium 230: insulating medium
240, 240 ': coil
300: power converter 310: rectifier
320: filter unit 330: resonant inverter
340: control unit 350: PID controller
400 housing 410 blower
420: control button

Claims (4)

Blower 100;
An induction heating part 200 coupled to the blower 100 to discharge and heat the wind generated from the blower 100; And
A power converter 300 for heating the inside of the induction heating unit 200 by applying a high frequency to generate magnetic flux;
It is made, including, the induction heating unit 200,
The inlet part 213 is coupled to one side and the exhaust part 214 is coupled to the other side, and the inlet part 213 and the exhaust part 214 are in communication with each other, and the step 215 is formed at the upper and lower parts of the outer circumferential surface, respectively. Body 210 is;
An insulating medium 230 coupled to the outer circumferential step 215 of the body 210; And
A coil 240 wound around an outer circumferential surface of the insulating medium 230;
Hot air fan using induction heating, characterized in that consisting of.
The method of claim 1, wherein the induction heating unit 200,
A hole is formed in the direction of the wind transfer inside, the body 210 'is provided with an upper seating jaw 211 and a lower seating jaw 212 on the inner peripheral surface;
A heating medium 220 coupled to the upper seating jaw 211 and the lower seating jaw 212 and made of a SUS 40-based metal body having magnetic properties; And
A coil 240 'wound on an outer circumferential surface of the body 210 and connected to the power converter 300;
Hot air heater using induction heating, including a.
The method of claim 1, wherein the power conversion unit 300,
Rectifier 310 for converting the input AC power to DC power;
Filter unit 320 for filtering the noise of the input power;
Resonant inverter 330 for heating the inside of the induction heating unit 200 by generating a magnetic flux by applying a high frequency;
A controller 340 for controlling the frequency of the resonant inverter 330; And
A PID controller 350 for transmitting an output value of the resonant inverter 330 to the controller 340;
Hot air heater using induction heating, including a.
4. The method according to any one of claims 1 to 3,
The blower 100, the induction heating unit 200, and the power conversion unit 300 are internally formed, and the blower hole 410 and the electric power that are discharged from the induction heating unit 200 are transferred to the outside. Warmer using induction heating is further provided with a housing 400 made up of a conversion unit 300 and a plurality of control buttons 420 connected to the blower 100.

Images