KR20180007869A - A Coanda Fan - Google Patents

Abstract

The present invention relates to a fan for a fan heater. More specifically, the present invention relates to a fan for a fan heater, which comprises: a cold air supply unit installed to supply external cold air; a hot air supply unit installed to supply hot air of a heating means; a thermoelectric device installed in between the two; and a fluid guide unit installed on an external side of the hot air supply unit to induce hot air supplied to an internal side to rise towards a bottom side along an external surface. Centrifugal fans are respectively installed on the cold air supply unit and the hot air supply unit. As the thermoelectric device causes an electro-motive force by a difference in temperatures between hot air of the hot air supply unit and cold air of the cold air supply unit, an air-blowing force is obtained by operating the centrifugal fans through the electro-motive force. The present invention is able to allow the air-blowing force to make hot air flow towards a bottom side along an external surface of the fluid guide unit (so-called Coanda effect), thereby effectively heating an indoor floor side.

Description

A Coanda Fan}

The present invention relates to a fan for a hot air fan, and more particularly to a fan for a hot air fan, and more particularly, to a fan for supplying hot air of a warm air unit, a cooler supplying unit installed to supply outside cool air, a thermoelectric element (thermoelectric element) And a fluid guiding part for guiding the warming part, which is installed on the outer side of the supplying part and is raised to the inside, to the lower side along the outer surface, wherein centrifugal fans are respectively installed in the cooling and supplying parts, The thermoelectric element generates an electromotive force by the temperature difference of the cool air in the cool air supply unit and the centrifugal fan is operated through the electromotive force to cause the heat to flow downward along the outer surface of the fluid guide unit Koanda effect), so that the indoor floor can be heated effectively Fan fan for Koanda It relates.

Conventionally, in general, a means for heating a room includes a method of installing and operating a boiler for supplying hot water to a floor, a method of using a heating device such as a heat mat or an electric plate, And a method of heating the air by blowing the warmth to the fan to heat the room.

However, as the lifestyle is diversified, leisure activities are becoming a daily routine, and many indoor activities are being performed in the narrow space of mobile resting means such as tents and mobile containers.

In many cases, the portable resting means such as a tent or other portable container installed as a part of leisure activities are not equipped with an electric facility or the like.

Therefore, mobile heating devices such as portable petrol stoves and other gas stoves are mainly used in the inner space of such a small movable (simple) resting means to heat the room in the cold season.

In this type of heating device for a simple resting place, a small heating means such as a portable gas burner is combined with a lower portion of a heating boiler, which is conventionally made small so as to be carried by hand, and the heating water is heated, A heating device for a simple resting place is provided in which a living room can be warmed and sleeps in cold weather in a simple resting place by circulating it on a mat, and a heating device for a simple resting place is disclosed in Japanese Patent Registration No. 10-0306289.

KR 10-0306289 (registration number) 2001.08.07. KR 10-1320980 (registration number) 2013.10.16. KR 10-1257654 (registration number) 2013.04.17.

As described above, conventionally, the petroleum heater for domestic use is not suitable for carrying out mountain climbing or leisure activity, and the domestic electric heater is not suitable for carrying and can not be used because the power can not be obtained from the outdoor, Can be easily carried, but can not be used for power.

Therefore, the conventional heating apparatus for a resting place designed to solve the above problems is also unreasonable for heating the interior of the mobile resting space such as a tent because the installation cost is high and complicated.

In addition, in the past, a small-sized fireplace has been developed and used so that it can be used in a tent or the like. However, since the warmth rises to the upper side, there is a problem that the heating efficiency is extremely low on the floor side.

Accordingly, the present invention has been made to solve the above problems,

An object of the present invention is to provide a fan for a fan for a fan of Kohanda which is installed at the upper end of the heating means and can spread the warm heat of the fan to the surroundings.

It is another object of the present invention to provide a fan for a Koanda fan which has a thermoelectric element for generating electricity according to a temperature difference and can effectively heat the room without providing a separate driving power source.

According to an aspect of the present invention, there is provided a fan for a hot air fan, which uses a Coanda effect to induce rising warmth to a floor surface,

A fluid guide member formed in a truncated cone shape having an upper surface portion and a lower surface portion opened and a larger diameter from the upper surface portion to the lower surface portion, and an upper surface of the heat source means provided on the lower end side of the fluid guide member, A heat supply member provided inside the fluid guide member and provided with a warm centrifugal fan for allowing the warmth rising on the upper surface of the heating means to flow into the lower side and discharge to the upper side, A cool air supply member provided on the upper portion of the fluid guide member and installed to face the warm supply member and installed with a cool air centrifugal fan so that external cool air can be introduced into the upper side and discharged to the lower side, And is provided between the supply member and the supply member, And a drive shaft provided on an upper side of the cool air supply member and driven by an electromotive force of the thermoelectric element, the drive shaft being installed through the cool air supply member, the thermoelectric element and the warm supply member, And a control unit.

Therefore, the fan for the Koanda fan according to the present invention has the effect that the generated wind is caused to flow along the streamlined fluid guide portion, and the warm heat generated from the lower stove spreads to the surroundings.

Further, the present invention has an advantage of reducing the burden on the installation of the external power source by reducing the cost by generating the electromotive force by the temperature difference of the thermoelectric elements provided therein and driving the centrifugal blower fan by using this electromotive force.

In addition, the present invention can be easily mounted on the upper side of the hearth, and is advantageous in that the wind power generated from the blowing pen moves to the floor along the fluid guide portion with the coanda effect, There is an advantage that indoor heating is very effectively performed in a narrow space of a mobile resting means such as a tent or a movable container by guiding to force circulation to the floor surface.

1 is a schematic perspective view of a fan for a Koanda fan according to the present invention mounted on the upper side of a hearth,
2 is a schematic cross-sectional view of a fan for a Koanda fan according to the present invention mounted on the upper side of a hearth,
3 is a perspective view and an enlarged cross-sectional view showing a state in which a fan for a Koanda fan according to the present invention is separated from a hearth,
FIG. 4 is a schematic operating view of a fan for a Koanda fan according to the present invention mounted on the upper side of a hearth and transferring warmth to a bottom surface of the indoor space to perform heating.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The fan 100 for a fan according to the present invention, as shown in FIGS. 1 to 4,

A fluid guide member 110 having an upper surface and a lower surface opened and a truncated conical shape having a larger diameter from the upper surface to the lower surface,

A plurality of support brackets 130 provided on the lower end side of the fluid guide member 110 so as to be positioned on the upper surface of the heating unit 120 providing a heat source,

A truncated cone-shaped fan (141) installed inside the fluid guide member (110) and provided with a warming centrifugal fan (141) for allowing the warmth rising on the upper surface of the warming means (120) The supply member 140,

A frusto-conical shape having a fridge-shaped centrifugal fan 151 installed on an upper portion of the fluid guide member 110 so as to be opposed to the warming member 140 so as to discharge the cool air to the upper side and discharge it to the lower side, The cold air supply member 150,

A thermoelectric element 160 installed between the warming member 140 and the cold air supplying member 150 to generate an electromotive force by a temperature difference between the upper and lower surfaces thereof,

The cooling air supply member 150 is installed on the upper side of the cool air supply member 150 and is driven by the electromotive force of the thermoelectric element 160 so that the drive shaft 171 is connected to the cool air supply member 150, And a driving unit 170 installed through the driving unit 140.

Since the fluid guide member 110 of the present invention is well-sealed, a warm heat source supplied from the heat source unit 120 can not escape to the side surface of the fluid guide member 110 and is moved upward, When the lower surface of the thermoelectric element 160 becomes hot and the lower surface of the thermoelectric element 160 becomes hot, The temperature difference between the upper and lower parts of the element is generated and electricity is generated. The electricity generated when electricity is generated in the thermoelectric element 160 drives the driving means 170 such as a motor.

Generally, a thermoelectric element is a device that converts thermal energy into electrical energy. It is a device that converts thermal energy and electric energy, a device that uses temperature change of electric resistance, and a phenomenon that electromotive force And a device using a phenomenon in which heat is absorbed by an electric current.

Accordingly, since the present invention drives the driving unit 170 using the electromotive force of the thermoelectric element 160, a separate power source is not required, so that the operation cost can be reduced

Further, the upper end of the driving unit 170 is further provided with a cap-shaped cover member for covering the upper portion of the upper portion of the fluid guide member 110 to control the flow of the fluid.

In the present invention configured as described above, when the driving unit 170 is driven by using the electromotive force generated from the thermoelectric device 160, the driving shaft 171 is driven to rotate the warm centrifugal fan 141 and the cool- The fan 151 is operated.

The warming centrifugal fan 141 is driven to discharge the warm air introduced from the lower end of the warming member 140 to the upper end side of the warming member 140 and at the same time the cooler centrifugal fan 151 is driven, The cool air of the outside air flowing from the upper end of the cool air supply member 150 is discharged to the lower end side surface of the cool air supply member 150.

The warm and cool air discharged to the respective side surfaces of the warm and cool centrifugal fans 141 and 151 is discharged downward by the cover member and the surface of the fluid guide member 110 Followed by lower echoes.

At this time, the upper end of the warm supply member 140 is heated and the heat is transferred to the thermoelectric element 160 so that the lower side thereof is heated. At the same time, the lower end of the cool air supply member 150 is warmed up, So that the upper side is cooled and the temperature difference between the upper and lower portions is generated, and the electromotive force generated by the temperature difference drives the driving means 170. [ The present invention is activated by repeating such a cycle.

The warm air discharged to the upper end side of the warm supply member 140 is guided downward along the surface of the fluid guide member 110 together with the cold air discharged to the lower end side of the cold supply member 150, So that the indoor floor can be quickly and effectively heated.

That is, the fluid guided downward along the surface of the fluid guide member 110 induces the upward movement of the heat from the upper surface of the heat source unit 120 downward. This makes it possible to quickly and efficiently heat the floor of the room

The lower end of the warming member 140 is installed so that the driving shaft 171 is rotatable and opened to allow warm air from the heating unit 120 to flow therethrough and has a truncated conical shape gradually increasing in diameter toward the upper end, And the upper end portion thereof is closed by the warm air centrifugal fan 141. The warm air introduced into the lower end portion of the warm supply member 140 is discharged to the side portion of the upper surface portion by the warm air centrifugal fan 141, .

The cooling air supply member 150 is installed so that the upper end of the cooling air supply member 150 is rotatably mounted on the driving shaft 171 so that the cooling air can be introduced into the cooling air supply member 150, And the lower end surface of the frictional member is closed by the cool air centrifugal fan 151. The cool air introduced into the upper end of the cool air supply member 150 is guided by the cool air centrifugal fan 151, And cold air is generated.

Accordingly, the upper side of the thermoelectric element 160 is cooled while cold air is being conveyed by the closed portion of the cold air supply member 150, and the lower side of the thermoelectric element 160 is warmed by the closed portion of the warm air supply member 140 An electromotive force is generated due to a temperature difference.

In addition, the heating unit 120 provides a heat source. In the present invention, the heating unit 120 includes various products that provide a heat source. For example, it can include a harmony boiler, a hot air fan, a gas burner, a gas boiler, and the like.

On the other hand, the support bracket 130 is placed on the heating means 120 for providing a heat source. The support bracket 130 may be made of a heavy metal plate and mounted on a hearth or fixed to a hearth with bolts and nuts. It may also be combined with bolts and nuts or various attachment and detachment methods on the side, not on the stove, or it may be manufactured integrally with the stove.

The driving shaft 171 prevents the warming of the heating unit 120 from being transmitted to the upper side of the thermoelectric module 160 at the loading portion of the thermoelectric module 160, 160 are prevented from being destroyed while preventing the hot heat source from being transmitted to the upper surface of the thermoelectric element and conversely the cool air of the cool air supply member 150 is transmitted to the lower surface of the thermoelectric element to reduce the temperature difference between the upper and lower surfaces of the thermoelectric element (Not shown) is provided to prevent the heat insulating member.

A plurality of supports are coupled to a lower portion of the drive shaft 171 to be coupled with an inner surface of the fluid guide member 110. When the support bars are three, the interval is 120 degrees, and when the support bars are four, the interval is 90 degrees. The support bracket may be engaged with the upper end of the support bracket 130.

Therefore, the warming of the heating unit 120 is minimized through the driving shaft 171 to the upper cooling unit side of the thermoelectric device 160.

Further, the driving means 170 may further include a support means 172 for supporting the fluid guide plate 110 by connecting it to the fluid guide plate 110, and a handle (not shown) for facilitating movement.

A guide rib 111 is formed on the outer circumferential surface of the fluid guide plate 110 so as to protrude outward so that the fluid can flow easily.

The heat supply member 140 and the cool air supply member 150 may be fixedly connected to the fluid guide plate 110. Alternatively, the heat supply member 140 may be provided as a separate fixing means, And its mounting means can be easily constituted by known means, and a detailed description thereof will be omitted.

The guide ribs 111 may be provided at a predetermined interval along the circumferential direction of the outer circumferential surface of the fluid guide plate 110. More preferably, the fluid guide plate 110 has a thread-like shape at regular intervals when it descends downward along the outer surface of the fluid guide plate 110. In this case, a stronger fluid flow from the upper end of the fluid guide plate 110 to the lower end of the fluid guide plate 110 may be induced to maximize the heating effect.

Further, the warm-air centrifugal fan 141 and the cool-air centrifugal fan 151 may be provided with multi-stage switch means (not shown) for adjusting the blowing rotational force.

The heating performance of the room can be appropriately adjusted through the switch means.

Here, the fluid guide plate 110 may be formed by using a so-called coanda effect that allows a part of the wind generated in the warm centrifugal fan 141 and the cool air centrifugal fan 151 to be guided along the surface thereof, And flows along the inclined surface of the plate 110.

The Coanda effect was discovered when a person named Koanda found a fire flame and white smoke from an airplane flowed along the surface of a fuselage of a plane when the jet plane crashed, ) Refers to the effect of flowing along a curved material.

Therefore, the wind (fluid) generated while the warm centrifugal fan 141 and the cold centrifugal fan 151 are rotated flows downward along the surface of the fluid guide plate 110.

The air flowing along the surface of the fluid guide plate 110 can entrain the heat generated by the heat source unit 120 and circulate the heat to the lower side of the room.

Therefore, it is possible to easily heat the indoor space such as the mobile resting space such as the tent, the general indoor space, and the bean house, where the warm space is to be provided.

In addition, the fluid guide plate 110 of the fan 100 for a fan according to the present invention may be installed integrally with the heating unit 120, or may be detachably attached.

Hereinafter, the function of the fan 100 of the present invention having the above-described configuration will be described.

First, the fan 100 for the Koanda fan is mounted on the upper surface of the heating unit 120 using the support bracket 130.

Then, the driving unit 170 is driven to rotate the driving shaft 171.

Here, the initial drive of the drive means 170 is operated through a storage means such as a battery.

Then, the warming centrifugal fan 141 and the cooling centrifugal fan 151 are rotated by the driving shaft 171 to discharge the fluid (wind) to these side surfaces.

That is, by rotating the warm-up centrifugal fan 141 and the cool-air centrifugal fan 151, warm and cool air are introduced into the warm supply member 140 and the cold supply member 150, respectively, The discharged fluid flows downward along the outer surface of the fluid guide plate 110. (Coanda effect)

At this time, the fluid guide plate 110 is installed on the upper side of the heating unit 120, so that the temperature rising from the heating unit 120 rises to the inside of the fluid guide plate 110, Member 140 and the remaining part thereof is lifted along the inside of the fluid guide plate 110 and discharged to the side by the wind power of the warm centrifugal fan 141. [

Thus, the fluid flowing along the surface of the fluid guide plate 110 can entra heat (warm) generated by the heat source unit 120 and circulate the heat to the lower side of the room.

At this time, the warm air and the external cool air are rapidly transferred to the upper and lower surfaces of the thermoelectric element 150 through the warm centrifugal fan 141 and the cooler centrifugal fan 151, and a temperature difference occurs between the upper and lower surfaces of the thermoelectric element 160 do.

As a result, an electromotive force is caused by the temperature difference between the upper and lower surfaces of the thermoelectric element 160.

The driving means 170 is operated by the electromotive force of the thermoelectric element 160 so that the warm centrifugal fan 141 and the cool centrifugal fan 151 are continuously rotated.

In this way, the fluid (warmth) generated through the warm centrifugal fan 141 and the cold centrifugal fan 151 flows along the inclined surface of the fluid guide plate 110 by the Coanda effect, (Heated) the lower (bottom) side of the heater.

As described above, the fan for a fan according to the present invention includes a cold air supply unit installed to supply outside cool air, a warm supply unit installed to supply warm air to the warm unit, a thermoelectric element (thermoelectric unit) And a fluid guiding part for guiding the warming air supplied to the inside and rising toward the lower side along the outer surface, the centrifugal fan being installed in each of the cooling air supplying part and the warming supplying part so that the heat of the warming supplying part, The thermoelectric element generates an electromotive force by the temperature difference of the cool air so that the centrifugal fan is operated through the electromotive force so that the heat is transmitted to the lower side along the outer surface of the fluid guide portion Thereby effectively heating the floor of the room.

100: fan for hot air fan
110: fluid guide member 111: guide rib
120: heating means
130: Support Bracket
140: warming supply member 141: warm-up centrifugal fan
150: cold air supply member 151: cold air centrifugal fan
160: thermoelectric element
170: driving means 171: driving shaft 172: supporting means

Claims (8)

1. A fan for a hot air fan, which uses a coanda effect to induce rising warmth to a floor surface for heating,
A fluid guide member formed in a truncated conical shape in which an upper surface portion and a lower surface portion are opened and a diameter becomes larger from the upper surface portion to the lower surface portion,
A plurality of support brackets provided on a lower end side of the fluid guide member to allow the support brackets to be positioned on an upper surface of a heat source providing a heat source,
A warming supply member installed inside the fluid guide member and provided with a warm centrifugal fan for allowing the warmth rising on the upper surface of the heating means to flow into the lower side and to be discharged to the upper side,
A cool air supply member installed on the upper portion of the fluid guide member so as to be opposed to the warm supply member and having a cool air centrifugal fan installed therein to allow external cool air to be introduced into the upper side and discharged to the lower side,
A thermoelectric element provided between the warm supply member and the cold supply member and capable of generating an electromotive force by a temperature difference between the upper and lower surfaces thereof,
And a drive means provided on an upper side of the cool air supply member and driven by an electromotive force of the thermoelectric element and having a drive shaft passing through the cool air supply member, the thermoelectric element and the warm supply member, For fans.
The method according to claim 1,
The heat supply member has a lower end portion that is installed and fixed so that the drive shaft is rotatable, is opened to allow warm air from the warmer means to flow, has a truncated conical shape increasing in diameter toward the upper end portion, And is closed,
In addition, the upper end of the cool air supply member is installed to be rotatable so that the drive shaft is rotatable, and is opened to allow outside cool air to flow therein. The cool air supply member is formed in a frusto-conical shape increasing in diameter toward the lower end, Pan fan for the structure made of Koanda.
3. The method of claim 2,
Wherein the heat supply member and the cold air supply member are formed in a frustum shape and are arranged to face each other through the thermoelectric element therebetween, I know fan for hot air fan.
The method according to claim 1,
Wherein the driving shaft is further provided with a heat insulating member for preventing the heat of the heating means from being transmitted to the upper side of the thermoelectric element at the loading portion of the thermoelectric element.
3. The method of claim 2,
And a plurality of support brackets provided on a lower end side of the fluid guide plate to allow the support brackets to be mounted on an upper surface of a heating means for providing a heat source,
3. The method of claim 2,
And a plurality of guide ribs (111) protruding outwardly are formed on an outer circumferential surface of the fluid guide plate.
6. The method of claim 5,
Wherein the fluid guide plate is installed integrally with the heating means or detachably installed thereon.
The method according to claim 1,
The fan for a fan according to claim 1, further comprising a cover-shaped cover member disposed on an outer side of an upper end of the driving unit to cover the outer side of the fluid guide member.

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