KR100636820B1 - A electric hot blast of the infrared ray emission type - Google Patents

Abstract

A near infrared ray emitting electric hot wind heater is provided to remarkably increase the thermal efficiency of the hot wind heater by blowing the radiant heat collected by a heat collecting unit to a remote distance. A near infrared ray emitting electric hot wind heater includes a body(1), a heat radiating unit(2), a heating air discharging unit(3), a heat radiating body(4), and a first blower. A front portion of the heat radiating unit is opened. The heating air discharging unit includes an air guiding plate. The heat radiating body is installed on the rear surface of the heat radiating unit to generate heat for hot wind heating. The first blower is installed in a reception chamber of the body and compulsorily blows the ambient air introduced through an air suction opening toward the heat radiating unit and the heating air discharging unit through air discharging openings.

Description

Near-infrared emission electric hot air heater {A ELECTRIC HOT BLAST OF THE INFRARED RAY EMISSION TYPE}

1 is an exploded perspective view of an electric hot air heater according to an embodiment of the present invention.

Figure 2 is a side cross-sectional view of the electric hot air heater according to an embodiment of the present invention.

3 is a plan view of a heating unit of the electric hot air heater according to an embodiment of the present invention.

Figure 4 is a perspective view of the first heat collecting means of the present invention.

Figure 5 is a partially cutaway perspective view of the second collecting means of the present invention.

Figure 6 is a plan view of the heat generating portion of the electric hot air heater according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1 body 2 heating unit

3: hot exhaust portion 4: heating element

5,15: 1st and 2nd blowers 6,7: 1st and 2nd heat collecting means

8: power supply unit 9: control unit

10: low voltage transformer 11: storage room

12: key input unit 13: display unit

14: temperature detection sensor 21: protection net

22: reflector 23: heat shield

24: air induction furnace 31: air induction plate

32: grill 61: mesh

71: enclosure 72: heat sink

73: clearance 111: air intake

112: air outlet 112a, 112b: front and rear air outlet

121: power switch 122: heating element selection switch

The present invention relates to a near-infrared emission type electric hot air heater, and more particularly, near-infrared radiation having a wavelength of 0.8 μm to 1.4 μm closest to the radiant heat of the sun at a temperature of 1800 to 2200 ° C. of a lamp heating element driven by a low pressure transformer. The heat is generated in the front portion through the first heat collecting means of the heat generating unit, and heat generated from the heat generating element and directed upward is collected through the second heat collecting means and blown to a long distance through the second blower to increase thermal efficiency. Of course, it is completely harmless to the human body, it is possible to compact by reducing the volume of the hot air heater itself, it is possible to effectively heat in a short time, and can significantly reduce the fuel cost compared to the existing oil or gas stove and at the same time incomplete combustion furnace Due to the invention has been invented to prevent the release of substances harmful to the human body in advance.

In general, heating is essential in winter in climatic conditions such as Korea where four seasons are distinct.

Looking at the type of heating can be divided into various ways, such as central heating, individual heating.

In most homes, boiler pipes or heating wires are installed on the floor or indoor floor to heat them.In contrast, in large offices, central heating boilers are often used. Electric, gas, and oil stoves are often used. In particular, in the case of electric stoves, there are many economic disadvantages due to the amount of electricity consumed, so oil or gas stoves are often used.

However, when using an oil or gas stove, nitrogen oxides (NOx), sulfur oxides (SOx), carbon monoxide (CO), etc. are generated to deteriorate the indoor environment.

In addition, in the case of oil-fired stoves, it was difficult to cope with the safety and accidents that users have to supply oil continuously.

In addition, in the case of the existing electric stove, there is a problem that the amount of electricity consumption is much higher than the oil or gas stove, the maintenance cost is high, and the thermal efficiency is low.

Therefore, in recent years, a large number of dryer-use hot air heaters or electric stoves have been proposed. Among them, the Korean Registered Utility Model Publication No. 20-0364832 "Dry dryer-heated air heater" has an inlet at one side and an outlet at the top. Outer cylinder formed; A filter device installed in communication with the inlet of the outer cylinder and configured to purify the contaminated air in the room; A first inner cylinder installed in the outer cylinder with a smaller diameter than the outer cylinder to form a first passage; A second inner cylinder installed in the first inner cylinder and installed in a smaller diameter than the first inner cylinder; First and second plates having a plurality of holes are hermetically installed on upper and lower portions of the second inner cylinder, and a heat exchange pipe vertically installed in the plurality of holes; A heating element installed close to the heat exchange pipe and generated by a power supply unit and a control unit; A low voltage transformer for boosting a voltage supplied to the heating element; It is composed of a blower for sucking the outside air and for discharging the air generated by the heating element to the outside through the heat exchange pipe.

However, this configuration has a triple structure, the structure is complicated, the production cost of the product is a lot, there is a problem that does not have the function of the stove, and performs only the function of the warm air heater to simply blow the air to blow.

In addition, domestic registered utility model registration No. 20-0368821 "electric stove" is provided with a storage space at the bottom and installed a low voltage transformer for converting the power supply, control unit, blower and AC 220V to 240-450A in the storage space. Main body; A duct installed in communication with the receiving part of the main body and having some ends formed toward an indoor side; A reflector installed at an upper portion of the main body accommodating portion and installed inside the duct; A heating element installed in the reflector to generate heat by the low voltage transformer; It is installed perpendicular to the front of the reflector is composed of a heat collecting portion for collecting heat dissipation of the heating element.

However, the electric stove of such a configuration is that the heat generated from the heating element is mainly discharged naturally through the heat collecting portion forward, and the air indirectly warmed in the duct formed to surround the upper portion including the heat collecting portion and the rear portion of the heating element The air forcedly blown by the blower installed in the storage compartment is not a forced blow method through a separate collection, but is configured to operate as a means for preventing various devices installed in the storage compartment in the main body from being burned out by indirect heat. Although only a blower is provided, only the front portion of the electric stove is heated intensively, there is a problem in that the heating efficiency is lowered because the hot air does not reach a relatively far from the electric stove.

On the other hand, Korean Laid-Open Patent Publication No. 10-2005-0100323 "electric stove" is a power supply and the control unit and the main body is installed low voltage transformer; A heating element installed at an upper end of the main body and generated by a power supply unit, a control unit, and a low voltage transformer; A protection net installed at an outer periphery to protect the heating element; It is coupled to the upper portion of the main body and consists of a protective cover installed in the upper blower for dispersing heat generated from the heating element.

However, the electric stove of such a configuration is installed on the outer periphery of the heating element installed on the upper surface of the main body, like a normal petroleum stove, and a protective cover is installed on the outside of the protective net, but a blower is installed on the bottom surface of the protective cover Since the blower disperses the heat generated from the heating element in all directions and prevents heat from being applied to the upper portion of the protective cover, it is possible to prevent safety accidents caused by the user's surroundings. Since the blower, which is relatively weak and generates heat by itself during operation, is installed on the upper part of the heating element, it deteriorates and burns out due to the heating of the heating element, which shortens the lifespan of the product and increases the cost of maintenance of the blower. There is a problem.

The present invention devised to solve such a conventional problem, the front portion of the heating element installed in the heating unit driven by the low-voltage transformer is 0.8㎛ ~ 1.4 close to the radiant heat of the sun in the temperature of the heating element 1800 ~ 2200 ℃ A first heat collecting means for generating near-infrared rays having a wavelength of µm is provided, and a second heat collecting means is installed above the heat generating element, and first and second blowers are installed in the storage compartment of the bottom of the heat generating element and the rear part of the heat discharge part, respectively. Thus, the radiant heat collected by the first and second heat collecting means is blown to a long distance by the blowing operation of the first and second blowers, thereby increasing the thermal efficiency and harmless to the human body, and reducing the volume of the warm air heater itself. Compact, efficient heating in a short time, and significantly lower fuel costs than conventional oil or gas stoves Be that at the same time due to the incomplete combustion to provide a near-infrared light emission electric hot air heaters which can be prevented from being harmful to the human body is released to it is an object.

In order to achieve the above object, the near-infrared emission type electric hot air heater of the present invention has a cabinet shape in which a front part is opened, and an air inlet and an air outlet are formed on one side and the upper surface of the storage chamber formed at the lower part, respectively. A main body provided with a power supply unit, a control unit, a low voltage transformer, and a blower inside the storage chamber; A heat generation part formed in a shape in which the front part is opened in an upper surface of the storage compartment of the main body; A hot air discharge part having a hemispherical curved air guide plate provided on the ceiling and the rear part and installed in a form in which the front part is opened above the heat generating part; A heating element installed at a rear portion of the heating part to generate heat for heating warm air; And a first blower installed in the storage chamber of the main body and forcibly blowing external air introduced through the air inlet to the heat generating unit and the hot air discharge unit through the air outlet.

At this time, the heating element is characterized in that the 1-3 installed in the ceramic material having an electrical resistance of 5Ω or less.

In addition, a heat shielding plate is installed on the rear portion of the heat generating unit so that an air induction path is formed between the heat shielding plate and the rear plate of the heat generating unit, and the heating element is installed on the heat shielding plate.

In addition, the air outlet is formed on the heat generating plate side and the air induction path side with the heat shield plate as the center, respectively, the air outlets occupy 2/3, the rear air outlets are formed so as to occupy 1/3, the first blower Two-thirds of the air blown from is supplied to the heat generating side through the air outlet and 1/3 is supplied to the air induction path through the rear air outlet is characterized in that guided to the hot air outlet side.

In addition, a protective net is installed at the front opening of the heat generating unit, and a grill having an adjustable blowing angle is installed at the front opening of the hot air discharging unit.

In addition, a first heat collecting means for collecting heat generated from each heat generating element so that radiant heat is generated first is provided at the front of each heat generating element installed in the heat generating unit, and an upper portion of the heat generating unit is disposed between the heat generating portion and the heat discharging portion. It is characterized in that the second heat collecting means for additionally collecting the heat of the heat-induced heat induced to negatively generate radiation heat.

" 형상을 갖도록 절곡 형성시킨 망체를 수직방향에 대해 일정간격을 두고 적어도 2-3개를 배치시켜 상기 발열부의 배면부에 고정 설치한 것을 특징으로 한다. At this time, the first collecting means is formed in the shape of a net by drilling a hole in the stainless steel plate, the longitudinal section is approximately "

"Is arranged to be bent to have a shape at least 2-3 at a certain interval in the vertical direction to the net body is characterized in that it is fixed to the rear part of the heating portion.

In addition, the second heat collecting means is fixed to the upper portion of the heat generating unit by fixing the heat dissipating plate formed at a predetermined interval in the corrugated brass plate or stainless steel plate formed in a corrugated brass plate or stainless steel plate to open the upper and lower surfaces at regular intervals. It is characterized in that the induced heat is transferred to the heat discharge side through the gap between them, including conduction through the heat sink.

At this time, the rear portion and the heat sink of the housing is characterized in that the through hole for hot air movement.

In addition, a second blower for additionally forcing the hot air collected by the second heat collecting means to a long distance is installed in the rear portion of the hot air discharging unit by a second forced air blowing through the air induction path. It is characterized by one.

In addition, the reflecting plate is installed on both sides of the heat generating unit and the front part of the heat shielding plate, and the air induction plate of the reflecting plate and the heat discharge part is formed of stainless steel.

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

1 is an exploded perspective view of an electric hot air heater according to an embodiment of the present invention, Figure 2 is a side cross-sectional view of the electric hot air heater according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention 4 illustrates a plan view of a heat generating unit of the electric hot air heater according to an example, FIG. 4 illustrates a perspective view of a first heat collecting unit of the present invention, and FIG. 5 illustrates a partially cutaway perspective view of a second heat collecting unit of the present invention, and FIG. Shows a plan view of the heating portion of the electric hot air heater according to another embodiment of the present invention.

According to this, the near-infrared emission type electric hot air heater of the present invention has a cabinet shape in which a part of the front surface is opened, and the air inlet 111 and the air outlet 112 are respectively provided on one side and the upper surface of the storage chamber 11 formed in the lower portion. A main body 1 having a power supply unit 8, a control unit 9, a low voltage transformer 10, and a blower 5 in the storage chamber 11;

A heat generation part 2 formed in a shape in which the front part is opened in an upper surface part of the storage chamber 11 of the main body 1;

A hot air discharge part (3) having a hemispherical curved air guide plate (31) provided at a ceiling and a rear part, and having a front portion opened at an upper portion of the heat generating portion (2);

A heating element 4 installed at a rear portion of the heat generating part 2 to generate heat required for warm air heating;

Installed in the storage chamber 11 of the main body 1, the outside air introduced through the air inlet 111 of the storage chamber 11 through the air outlet 112 through the heat generating portion 2 and the hot air exhaust portion (3) It characterized in that it comprises a; first blower (5) for forcibly blowing to the side.

At this time, the heating element 4 is formed of a ceramic material so that the electrical resistance is 5Ω or less, characterized in that 1-3 installed.

In addition, a heat shield plate 23 is installed on the rear portion of the heat generating unit 2 so that an air induction path 24 is formed between the heat shield plate 23 and the rear plate of the heat generating unit 2, The heating element 4 is characterized in that it is installed on the heat shield plate (23).

And, the air outlet 112 is formed on the heat generating plate 2 side and the air induction path 24 side with respect to the heat shield plate 23, respectively, the air outlet 112a occupies 2/3 of the rear portion The air outlet 112b is formed to occupy 1/3 so that the air blown from the first blower 5 is supplied with 2/3 to the heat generating unit 2, and 1/3 is opened through the air induction furnace 24. Characterized in that it is supplied to the discharge portion (3) side.

In addition, a protection net 21 is installed in the front opening of the heat generating unit 2 to prevent various objects including the human body from flowing into the heat generating unit 2, and in the front opening of the hot air discharging unit 3. Characterized in that the grill 32 for adjusting the blowing angle and direction of the heat.

In addition, a first heat collecting means 6 is installed at the front of each heat generating element 4 installed in the heat generating part 2 to collect heat generated from each heat generating element 4 so that radiant heat is primarily generated. It is characterized by.

The second heat collecting means 7 collects heat of the heat generating element 4 guided upward of the heat generating part 2 between the heat generating part 2 and the heat discharging part 3 so that radiant heat is generated secondarily. ) Is additionally installed.

" 형상을 갖도록 절곡 형성시킨 망체(61)를 수직방향에 대해 일정간격을 두고 적어도 2-3개를 배치하여 상기 발열부(2)의 배면부에 고정 설치한 것을 특징으로 한다. At this time, the first collecting means 6 is formed in the shape of a net by drilling a hole in the stainless steel plate, the longitudinal section is approximately "

"Is formed by bending at least 2-3 of the net body 61 is formed to be bent to have a shape in the vertical direction at regular intervals in the rear portion of the heat generating section (2).

In addition, the second heat collecting means 7 has a predetermined interval between the heat sinks 72 formed by bending the brass plate or the stainless steel plate in a wave form in the enclosure 71 formed of the brass plate or the stainless steel plate so that the upper and lower surfaces thereof are open. And fixedly installed so that the heat induced to the upper portion of the heat generating part 2 is transferred to the heat discharging part 3 through the gap 73 therebetween, including conduction through the heat sinks 72. do.

At this time, the rear portion of the housing 71 is bored through the through hole 711 to move a portion of the heat collected by the second heat collecting means 7 to the second blowing fan 15 side, the heat sink 72 It is characterized in that the through-holes 721 for puncturing the hot air being moved through the adjacent gaps 73 and have an even temperature.

In addition, the second heat collecting means 7 blows the air that is blown through the air induction furnace 24 by the first blower 5 to the rear part of the heat discharge part 3. It is characterized in that the second blower (15) is additionally provided for forcibly blowing the heat collected by the air to move to the rear portion and the upper portion to a long distance.

In addition, the reflecting plate 22 is installed on both sides of the heat generating unit 2 and the front part of the heat shielding plate 23, but the air induction plate 31 of the reflecting plate 22 and the hot air discharge unit 3 is respectively. It is characterized by being formed of a stainless steel plate.

On the other hand, since the low voltage transformer 10 converts the AC voltage of 220V into 250-460A and flows it to the heating element 4, the surface temperature of the heating element 4 can be increased to 1800 degrees to 2200 ° C.

Referring to the effect of the near-infrared emission type electric hot air heater of the present invention configured as described above are as follows.

First, the present invention is largely composed of the main body 1, the heat generating unit 2, the hot air discharging unit 3, the heating element 4 and the first blower (5), in addition to the first and second An additional component of the heat collecting means 6, 7 and the second blower 15 is the main component.

In this case, the main body 1 has a cabinet shape in which the front part is opened, and the lower part has a space in which the power supply unit 8, the control unit 9, the low voltage transformer 10, and the first blower 5 are installed. The storage compartment 11 is provided, and communicates with the air inlet 111, the heat generating unit 2, and the air induction path 24 penetrating the outside to one side and the upper surface of the storage compartment 11, respectively. The air outlet 112 has a configuration formed.

In addition, one side of the front part of the main body 1 includes a power switch 121 and a heating element selection switch 122 for selecting the number of driving of the heating element 4, although not shown. The key input part 12 provided with a temperature control switch etc. is provided.

In addition, if necessary, the display unit 13 including a driving time of the heating element 4 and displaying a set temperature and a current temperature may be further provided.

In addition, the power supply unit 8 includes a control unit 9 to supply a voltage required for driving the low voltage transformer 10, the first and second blowers 5, 15, and the like, and the control unit 9 In response to the output signal of the key input unit 12, the driving of the heating elements 4 through the low voltage transformer 10 is controlled, and the driving of the first and second blowers 5, 15 and the display unit 13 is simultaneously performed. Control.

At this time, if the temperature detection sensor 14 for detecting the room temperature or the temperature in the heat generating unit 2 is further installed at the input terminal of the control unit 9, the control unit 9 is set by the user the temperature of the room By controlling the driving of the heating elements 4 to be maintained within the temperature range, the indoor air can be automatically maintained within the set temperature range.

On the other hand, the heat generating portion 2 has a configuration provided in the upper surface portion of the main body 1 in the form in which the front portion is opened, wherein the heat shielding plate 23 is provided on the rear portion of the heat generating portion 2 By forming an air induction path 24 between the heat shield plate 23 and the rear plate of the heat generating unit 2, the rear part of the heat generating unit 2 may be prevented from being overheated, and unnecessary heat loss may be prevented. Can be.

At this time, the heating element 4 is preferably installed on the heat shield plate 23 rather than the rear plate of the heat generating portion (2).

In addition, the air outlet 112 is all the air outlet 112a located on the heat generating section 2 with respect to the heat shield plate 23 and the rear air outlet 112b located toward the air induction path 24 side. ) To occupy 2/3 and 1/3 respectively.

Therefore, 2/3 of the air blown from the first blower 5 may be supplied to the heat generating part 2, and 1/3 of the air may be supplied to the hot air discharge part 3 through the air induction path 24. The air forcedly blown by the first blower 5 smoothly blows the heat generated by the heat generating element 4 in the heat generating part 2 to the front opening side to improve heating efficiency, as well as the heat shield plate 23. It is conducted through the) can be smoothly transmitted to the hot air discharge portion (3) to the heated air in the air induction path 24 to completely prevent the loss of heat.

In addition, it is preferable to install a protection net 21 in the opening of the heat generating unit 2 to prevent various objects including the human body from flowing into the heat generating unit 2.

In addition, on both sides of the heat generating portion 2 and the front portion of the heat shield plate 23 is further provided with a reflecting plate 22 made of a stainless steel plate to reflect the heat generated from the heating elements 4 to the front opening side It is good to be able to make it.

In this case, when only the reflector plate 22 and the protection net 21 are installed in the heat generating unit 2, the heat generated from the heat generating element 4 installed on the rear surface of the heat generating unit 2 remains as it is through the opening of the heat generating unit 2. Since it is emitted, there is no generation of radiant heat, resulting in poor thermal efficiency.

Therefore, in the present invention, the first heat collecting means 6 is respectively provided at the front of the heat generating element 4 so that heat generated from the heat generating elements 4 is primarily collected so that radiant heat is generated.

" 형상을 갖도록 절곡 형성시킨 망체(61)를 수직방향에 대해 일정간격을 두고 적어도 2-3개를 배치하여 상기 발열부(2)의 배면부에 고정 설치하는 형태로 제 1 집열수단(6)을 설치하여 주었다.That is, the holes are made in the stainless steel plate in the longitudinal and horizontal directions to form a mesh so that the longitudinal section is approximately "

"The first heat collecting means (6) in a form that is fixed to the rear surface of the heat generating portion (2) by arranging at least 2-3 at a certain interval with respect to the vertical direction of the network 61 bent to form a shape I installed it.

Therefore, by the meshes 61 of the first heat collecting means 6 installed in multiple layers while being heated by the heat generating element 4 installed on the rear surface of the heat generating unit 2 and moving toward the opening side of the heat generating unit 2. Since heat is emitted in the form of stagnation and heat collection, near-infrared radiation having a wavelength of 0.8 μm to 1.4 μm is generated, thereby improving thermal efficiency.

At this time, a part of the air forcedly blown into the heat generating unit 2 by the first blower 5 is inside the heat generating unit 2 by the meshes 61 constituting the first heat collecting means 6. Since the vortex and warming up, the effect of generating primary radiant heat becomes better.

On the other hand, the hot air discharge portion (3) is installed in the upper portion of the heat generating portion (2) in the form of the front opening, the stainless steel plate so that the heat reflection between the ceiling and the back of the hot air discharge portion (3) is good It has a configuration in which the air guide plate 31 is formed to be bent in a hemispherical shape.

At this time, by installing a grill 32 capable of adjusting the blowing angle and direction in the front opening of the hot air discharging unit 3, the user may be connected to the heat generating unit 2 by the first and second blowers 5 and 15. Through the second heat collecting means 7 to be described later it can be sent by adjusting the hot air forcibly blown in the direction and angle desired.

In addition, the heating element 4 is installed on the heat shield plate 23 at the rear portion of the heat generating unit 2 and heat required for warm air heating in response to the amount of current supplied from the low voltage transformer 10 under the control of the control unit 9. It is configured to generate.

The heating elements 4 are formed of a ceramic material having an electrical resistance of 5 Ω or less, and may be provided with one as in the embodiment of the present invention, or two or three as in the other embodiments of the present invention. It can also be installed, which can be deformed according to the volume of the indoor space that requires heating, as well as the number of installation is determined by it.

In addition, the first blower 5 is installed in the storage chamber 11 of the main body 1 to generate the external air introduced through the air inlet 111 of the storage chamber 11 through the air outlet 112, respectively. 2/3 of the air volume is sent out to the side (2), and through the air induction path 24 formed in the rear portion of the heat generating section 2 is forced to blow 1/3 of the air volume to the heat discharge section (3) It is.

In addition, the second blower 15 may be installed in the rear portion of the hot air discharge unit 3 as needed to allow the weak air to be blown by the first blower 5 through the air induction path 24. Secondly, it is possible to blow strongly to the opening side of the heat discharge portion 3, and at the same time, the heat collected by the second heat collecting means 7 to be described later and forced to blow the heat moved to the rear portion and the upper portion to a long distance. have.

At this time, the second blower 15 blows the weak air while being blown through the air induction path 24 by the first blower 5 and the heat transferred to the rear part of the second heat collecting means 7 described later. Each having a cross-floor fan was adopted to smoothly suck and blow through the one discharge hole to the hot air discharge section 3 side.

On the other hand, between the heat generating portion 2 and the heat discharge portion 3, the second heat collecting means (7) for collecting heat of the heat generating element (4) guided above the heat generating portion (2) to generate radiant heat secondaryly Has a installed configuration.

At this time, the second heat collecting means 7 is fixed to the heat sink (72) formed by bending the brass plate or stainless steel plate in a wavy form in a housing 71 formed of a brass plate or a stainless steel plate to open the upper and lower surfaces at a predetermined interval. Has an installed configuration.

Therefore, a part of the air that is blown through the heat generating unit 2 by the operation of the first blower 5, including the heat naturally induced above the heat generating unit 2, passes through the heat sinks 72. As well as being conducted, the second heat collecting means 7 collects heat again to be sent to the heat discharge part 3 when the heat is transferred to the heat discharge part 3 through the gap 73 formed between the heat sinks 72. Can be.

In addition, a part of the heat collected by the second heat collecting means 7 is formed by drilling a through hole 711 in the rear portion of the housing 71 among the components of the second heat collecting means 7. 15) and the portion of the air that is blown through the heat generating unit 2 by drilling through-holes 721 in the heat sink 72 forms a gap 73 formed between the heat sinks 72. When passing through the heat discharge portion (3) side through the through hole 721 perforated in the heat sink (72) to move to each other adjacent gaps (73) to have a uniform temperature to move to the heat discharge portion (3) side You may.

Accordingly, the second blower 15 is connected to the air of the first blower 5 passing through the air induction path 24 formed on the rear surface of the heat generating unit 2 and the housing 71 of the second heat collecting means 7. The hot air is moved to the rear part through the perforated through hole 711 and is strongly blown to the grill 32 side of the hot air discharging part 3 so that the heat is collected by the heat sinks 72 of the second heat collecting means 7. Near-infrared radiant heat having a wavelength of 0.8 μm to 1.4 μm and moving upwardly to the outside through the grill 32 of the hot air discharge part 3 by the strong blowing force of the second blower 15. Since it is discharged in response to the air volume, the thermal efficiency according to the warm air heating can be significantly increased.

In addition, the present invention is harmless to the human body by using a heating element (4) that generates heat by electric energy, it is possible to compact by reducing the volume of the warm air heater itself, the predetermined volume of the interior space can be effectively heated within a short time In addition, fuel costs can be significantly reduced compared to conventional oil or gas stoves, and at the same time, emissions of harmful substances due to incomplete combustion can be prevented.

Although the above-described embodiments are described with respect to the most preferred embodiment of the present invention, it is not limited to the above embodiments, it will be apparent to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention.

As described above, according to the present invention, a first heat collecting means is installed in the heat generating portion in which the heat generating element is installed, and a second heat collecting means is installed between the heat generating portion and the heat discharging portion, and a blower is installed in the storage compartment of the main body. The radiant heat of near-infrared light collected by the first heat collecting means is naturally discharged to the front part of the heat generating part, and the radiant heat collected by the second heat collecting means is blown to a long distance by the blowing of the blower in the hot air discharge unit. The thermal efficiency can be greatly increased and it is also harmless to the human body.

In addition, the volume of the warm air heater itself can be reduced in size, effective heating is possible in a short time, and the fuel cost can be greatly reduced compared to the existing oil or gas stove, and at the same time, harmful substances are released due to incomplete combustion. It is a very useful invention such that it can be prevented in advance.

Claims (18)

A cabinet-shaped body in which components including a control unit are installed in a storage chamber having an air inlet and an air outlet; A heat generation part installed in a form in which the front part is opened in the upper surface part of the main body; A hot air discharging part provided on an upper surface of the air guide plate and installed in a form in which the front part is opened above the heat generating part; A heating element installed at a rear portion of the heating part to generate heat for heating warm air; Near-infrared emission type electricity, comprising: a first blower installed in the storage compartment of the main body and forcibly blowing external air introduced through the air inlet to the heating part and the heat exhaust part through the front and rear air outlets; Hot air heater. The method according to claim 1, A near-infrared emission type electric hot air heater, characterized in that a protective net is installed in the front opening of the heat generating unit, and a grill capable of adjusting the blowing angle and the direction is installed in the front opening of the hot air discharging unit. The method according to claim 1, The heating element is a near-infrared emission electric hot air heater, characterized in that the ceramic material having an electrical resistance of 5Ω or less. The method according to claim 3, Near-infrared emission type electric hot air heater, characterized in that the heating element is installed 1-3 pieces. The method according to claim 4, Near-infrared emission type electric hot air heater, characterized in that the first heat collecting means for collecting heat generated by each heat generating element in the front portion of each heat generating element installed in the heat generating unit to primarily generate radiant heat. The method according to claim 1, Near-infrared emission type electric hot air heater, characterized in that between the heat generating portion and the heat discharge portion is provided with a second heat collecting means for collecting heat generated by the heat generating element is directed to the upper portion of the heat generating portion secondary radiation. The method according to claim 5, The first collecting means is formed in the shape of a net by drilling a hole in the stainless steel plate, the longitudinal section is approximately "

"Near-infrared emission type electric hot air heater having a configuration in which at least 2-3 meshes are formed to be bent to have a shape at regular intervals in a vertical direction and are fixed to the rear surface of the heat generating unit. The method according to claim 6, The second heat collecting means is a near-infrared emission type electric hot air heater, characterized in that the heat sink is fixed at regular intervals in the enclosure formed of a brass plate or a stainless steel plate to open the upper and lower surfaces. The method according to claim 8, The heat sink is a near-infrared emission electric hot air heater, characterized in that formed by bending the brass plate or stainless steel plate in a wavy shape. The method according to claim 8, Near-infrared emission type electric hot air heater, characterized in that the through hole for hot air induction in the rear and the heat sink of the enclosure. The method according to claim 7, Near-infrared emission type electric hot air heater, characterized in that an air induction path is formed between the heat shielding plate and the rear plate of the heat generating plate by installing a heat shielding plate on the rear portion of the heat generating unit. The method according to claim 11, The air outlet port is formed as a front and rear air outlets so as to occupy 2/3 and 1/3 respectively to the heat generating unit side and the air induction path side with the heat shield plate as the center, and the air blown from the first blower is entirely toward the heat generating unit side. Near-infrared emission type electric hot air heater, characterized in that 2/3 is supplied through the air outlet and 1/3 is supplied to the air induction furnace through the rear air outlet to be introduced to the hot air discharge side. The method according to claim 10 or 12, The rear portion of the heat discharge portion sucks and blows heat introduced into the rear portion of the second heat collecting means through the air through the air guide passage by the first blower and collects by the second heat collecting means. A near-infrared emission type electric hot air heater, characterized by additionally installing a second blower for forcibly blowing hot air to a long distance. The method according to claim 11, Near-infrared emission type electric hot air heater, characterized in that the reflection plate is installed on both sides of the heat generating portion and the front portion of the heat shield plate. The method according to claim 14, The near-infrared emission type electric hot air heater, wherein the reflection plate and the air induction plate of the hot air discharge unit are formed of stainless steel. The method according to claim 1 or 3, Near-infrared emission type electric hot air heater, characterized in that the front portion of the main body is provided with a power switch, a key input unit having a heating element selection switch for selecting the number of driving of the heating element, a drive time setting switch and a heating temperature control switch. . The method according to claim 1, Near-infrared emission type electric hot air heater, characterized in that the front portion of the main body is provided with a display unit for displaying the set temperature and the current temperature, including the driving time of the heating element. The method according to claim 17, A temperature detection sensor for detecting an indoor temperature or a temperature in the heating unit is further installed at an input terminal of the controller to allow the controller to control the driving of the heating elements on / off so that the indoor temperature is maintained within a temperature range set by the user. Near-infrared emission type electric hot air heater characterized by the above-mentioned.

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