KR20160032427A - Electric hot blast heater - Google Patents

Abstract

Disclosed is an electric hot air heater, capable of significantly improving hot air efficiency by sending air, coming from the outside, to the outside after heating the air for a short time while making an eddy of the air, and increasing heating efficiency by supplying hot air in a further distance. The present invention comprises: a housing including an air inflow pipe, taking external air, in a lower side of the outer surface with a vacant internal side and an air discharge pipe in an upper side of the outer surface while being opened and closed by a cover; single or multiple electric heating coils installed in the housing in a longitudinal direction, and making heat according to the application of a current; a power supply part applying external power to the electric heating coils while being electrically connected with the coils in the bottom of the housing; a spiral eddy forming pipe installed to be connected to the air inflow pipe inside the bottom of the housing, and allowing the external air, coming through the air inflow pipe, to penetrate the inside of the housing while making an eddy; a ventilator installed to be connected to the air inflow pipe outside the housing, and forcibly ventilating the external air into the air inflow pipe; and a control part controlling an ON/OFF state of the current, applied from the power supply part to the heating coils, and controlling an ON/OFF state of the ventilator while controlling the temperature of the hot air in a state of being electrically connected with power supply part and the ventilator.

Description

[0001] Electric hot blast heater [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric hot wind device, and more particularly, to an electric hot wind device, which is capable of greatly improving the warm air efficiency by allowing air introduced from the outside to be heated in a short time while being vortexed, The present invention also relates to an electric hot air device for generating far infrared ray which is beneficial for the growth of a human body or a crop, while allowing heating air to be supplied to a farther distance.

Generally, a heating device for maintaining the temperature at a constant temperature is required in the rooms of various houses, greenhouses, dryers, and the like. As an example of such a heating device, a hot air fan or a hot air fan is used.

The conventional hot air blower uses oil such as petroleum oil and consumes an excessively large amount of fuel. In addition, when the driving and the operation are stopped, the indoor air needs to be ventilated due to the oil smell, , Resulting in a further increase in consumption of the oil to compensate for the lost heat.

Further, in the process of burning the fuel, the oil is frequently incompletely burned, and toxic gas is generated in the human body such as sulfur or carbon dioxide.

On the other hand, there are some hot air fans which use LPG gas without using oil such as petroleum, but there are problems similar to hot air fans using oil, and there is a risk of fire due to attention of gas leakage and exposure of flame, There is a disadvantage that the heat generating capacity can not be appropriately changed depending on the size of the required indoor space.

Various types of electric hot air devices have been developed to solve the problems of conventional hot air fans using such oil as a fuel. For example, Korean Unexamined Utility Model Publication No. 20-2008-0004435 (entitled: , Hereinafter referred to as "prior art").

[0003] As shown in FIG. 1, in the prior art, as shown in FIG. 1, in an electric hot air fan installed in a room, an inlet port is formed at one side to provide a blowing fan and a discharge port is formed at the other side to allow air to pass from the inlet port to the discharge port And a plurality of mounting holes arranged side by side on the side surface of the main body; A plurality of electric heating modules each including a mounting plate detachably coupled to the plurality of mounting holes and at least one electric heating element coupled to the mounting plate to be positioned in the fan body through the mounting hole; A temperature sensor for sensing the temperature of the room; And a control unit for controlling on-off of the blowing fan and individual on-off of the plurality of electric heating modules according to the temperature value sensed by the temperature sensor.

However, in the above-mentioned prior art, since the air flows into the main body of the fan body only by the action force of the blowing fan, when the heat-exchanged air is discharged through the discharge port, the air can not be blown to a long distance, .

In the prior art, since the electric heating modules are arranged in a planar shape, the time (heat exchange time) required until the air introduced into the fan body from the outside reaches the desired temperature becomes relatively long, A larger number of electric heating modules must be installed to increase the total size of the electric heating modules, resulting in an increase in the installation area, resulting in a significant decrease in space utilization.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object of the present invention is to provide an air conditioner which is capable of greatly improving the warm air efficiency by allowing air introduced from outside to be heated in a short time while being vortexed, And to provide a new electric hot air apparatus.

Another object of the present invention is to provide a new electric hot air device which can increase the heating efficiency by allowing hot air to be supplied to a longer distance.

It is still another object of the present invention to provide a new electric hot air apparatus that generates far infrared rays useful for growth of human body, livestock, or crops.

In order to achieve the above object, the present invention provides an air inflow pipe in which an inside is empty, an outside air is introduced into a lower side of an outer circumferential surface, an air exhaust pipe is formed on an upper side of an outer circumferential surface, A housing; A heat transfer coil installed in the housing in the longitudinal direction and generating heat in response to application of a current; A power supply unit for applying a power supplied from the outside to the electrothermal coil in a state where the electrothermal coil is electrically connected to the bottom of the housing; A spiral vortex-forming tube installed inside the lower portion of the housing to communicate with the air inlet pipe and allowing the outside air flowing through the air inlet tube to pass through the inside of the housing while forming a vortex; An air blower installed outside the housing to communicate with the air inlet pipe and forcedly blowing outside air into the air inlet pipe; ON / OFF 'state of a current applied from the power supply unit to the heating coil in a state of being electrically connected to the power supply unit and the blower to control the' ON / OFF 'state of the blower, And a control unit for controlling the control unit.

In the present invention, the heat transfer coil has a spiral shape, and a plurality of heat transfer coils are arranged concentrically.

In the present invention, the inner circumferential surface and the outer circumferential surface of the heat transfer coil are coated with a far-infrared ray emitting material that emits a far-infrared ray which is beneficial for the growth of human body, livestock, or crops.

According to the present invention, the air introduced into the interior of the housing from the outside forms a vortex flow, and at the same time, the external heat pump heated to a desired temperature within a short period of time by a plurality of electric heaters provided concentrically in the interior of the housing, So that the warm air efficiency is maximized.

Since the air flowing into the housing forms a vortex and is discharged through the air discharge pipe after passing through the housing, the warm air reaches the relatively long distance, so that the heating efficiency for the unit area is greatly improved. And the far-infrared radiation material is coated on the outer circumferential surface, when the hot air fan is driven, the abundant far-infrared rays are emitted into the indoor space, so that it is beneficial to the human body or livestock and is also very beneficial to the growth and growth of the crop.

1 is a sectional view showing an electric fan unit according to the prior art.
2 is a cross-sectional view of an electric hot air apparatus according to the present invention.
FIG. 3 is a cross-sectional view illustrating a state in which a vortex-forming tube is installed in a housing of the electric hot air apparatus according to the present invention.
FIG. 4 is a view illustrating a state in which a plurality of helical heat-transfer heaters are installed concentrically in the interior of the housing in the electric hot air apparatus according to the present invention.
5 is a cross-sectional view of Fig.
6 is a plan view showing a state in which air introduced from the outside in the electric hot air apparatus according to the present invention is heat exchanged while forming a vortex in the housing and then discharged through an air discharge pipe.

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

2 to 6, an electric hot air apparatus 10 according to the present invention is provided with a housing 14 which is hollow and has a lid 12 which is opened and closed by a housing 14, An air inlet pipe 16 through which outside air flows is formed at one side and an air outlet pipe 18 is formed at an upper side of the outer circumferential surface.

In the present invention, a single or a plurality of heat-generating coils 20, which generate heat according to the application of current, are installed in the housing 14 along the longitudinal direction of the housing 14.

A power supply unit 22 is installed in the lower portion of the housing 14 to electrically connect the heat transfer coil 20 to the heat transfer coil 20.

A spiral vortex forming tube 24 is provided in the lower portion of the housing 14 so as to allow the air flowing from the outside to the inside of the housing 14 to pass through the inside of the housing 14 while forming a vortex flow, Is connected to the air inlet pipe (16).

An air blower 26 for blowing outside air into the air inflow pipe 16 is provided so as to communicate with the air inflow pipe 16 on the outer side of the housing 14, ON "state of a current applied from the power supply unit 22 to the heat transfer coil 20 in a state where the power supply unit 22 and the blower 26 are electrically connected to each other, And a controller 28 for controlling the 'ON / OFF' state of the indoor heat exchanger and the hot air temperature.

In the present invention, the heat transfer coil 20 is formed in a spiral shape, and a plurality of the heat transfer coils 20 may be installed concentrically.

In addition, the far-infrared radiation material 30 may be coated on the inner circumferential surface and the outer circumferential surface of the heat transfer coil 20 to emit far-infrared rays useful for growth of human body, livestock, or crops.

The operation of the present invention is as follows.

When heating the indoor space using the electric hot air device 10 according to the present invention, the hot air temperature is set to a desired temperature through the control unit 28 and the switch is operated to the "ON" The electric heater 20 is heated while a current is applied to the electrothermal heater 20 through the power supply unit 22 and at the same time the blower 26 is driven so that external air flows through the air inlet pipe 16 to the housing 14 As shown in FIG.

The external air introduced through the air inflow pipe 16 passes through a spiral vortex forming pipe 24 provided inside the lower portion of the housing 14 so as to communicate with the air inflow pipe 16 and forms a vortex While being moved upward in the interior of the housing (14) and heated by the heat transfer heater (20).

The air heated by the electrothermal heater 20 is discharged to the outside through the air discharge pipe 18 formed on the upper side of the housing 14 to heat the indoor space.

At this time, the air heated inside the housing 14 forms a vortex and reaches the relatively far distance as it exits the air discharge pipe 18 very quickly, so that the heating efficiency for the unit area is improved, Far-infrared radiation material 30 is coated on the inner circumferential surface and the outer circumferential surface of the electrothermal heater 20 so that the far-infrared rays beneficial for the growth and growth of the human body, cattle, or crops are abundantly emitted.

10: Electric hot air system
12: lid 14: housing
16: air inlet pipe 18: air outlet pipe
20: electric heater 22: power supply unit
24: vortex forming tube 26: blower
28: control unit 30: far-infrared radiation material.

Claims (3)

An air inlet pipe 16 through which the outside air flows into one side of the lower part of the outer circumferential surface is formed and an air outlet pipe 18 is formed on the upper side of the outer circumferential surface and a housing 14);
A single or a plurality of heating coils 20 installed in the housing 14 in the longitudinal direction and generating heat according to application of current;
A power supply unit 22 for applying a power supplied from the outside to the electrothermal coil 20 in a state where the electrothermal coil 20 is electrically connected to the bottom of the housing 14;
The air introduced through the air inlet pipe 16 passes through the inside of the housing 14 while forming a vortex flow in the inside of the lower portion of the housing 14 and communicated with the air inlet pipe 16, A spiral-shaped vortex-forming tube (24) for making the vortex;
An air blower 26 installed outside the housing 14 in communication with the air inlet pipe 16 for forcibly blowing outside air into the air inlet pipe 16;
ON / OFF 'state of a current applied from the power supply unit 22 to the heat transfer coil 20 in a state where the power supply unit 22 and the blower 26 are electrically connected to the blower 26 And a control unit (28) for controlling the 'ON / OFF' state of the indoor heat exchanger (30) and adjusting the hot air temperature. The method according to claim 1,
Wherein the heat transfer coil (20) is formed in a spiral shape, and a plurality of the heat transfer coils (20) are arranged concentrically. The method according to claim 1,
Wherein a far infrared ray emitting material (30) is coated on the inner circumferential surface and the outer circumferential surface of the heat transfer coil (20) so as to emit a far infrared ray beneficial for growth of human body, livestock or crops.

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