KR100754002B1 - Fan heater using plane heater - Google Patents

Abstract

A fan heater using a plane heater is provided to control air blow temperature by making it easier to control heating temperature. A fan heater using a plane heater(30), includes an outer tube(34), a clip type spacer(34a), and a partition plate(36). The outer tube is arranged along a circumference of a heating tube(20) so as to form an air flow path(35). The spacer is arranged at both ends of the outer tube so as to support the heating tube in the outer tube. The partition plate completely cuts off the space formed between outer tubes from the space formed between the outer tube and a casing. The air passed through a blower fan(40) flows just along an internal path(24) formed in the heating tube and the air flow path formed between the heating tube and the outer tube.

Description

Fan heater using plane heating element {FAN HEATER USING PLANE HEATER}

1 is a cross-sectional view showing the configuration of a warm air fan using a planar heating element according to the present invention,

Figure 2 is a perspective view showing a heating tube and a planar heating element and the outer tube constituting the warm air fan of the present invention,

Figure 3 is a perspective view showing a modification of the heating tube constituting the warm air fan of the present invention, Figure 4 is a cross-sectional view showing another embodiment of a warm air fan using a planar heating element according to the present invention,

5 is a perspective view showing a heating substrate constituting another embodiment of a warm air heater using a planar heating element according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

10: Casing 12: Controller

14: Pushbutton 15: Timer

16: Ventilation Room 17: Inlet

18: discharge port 20: heating tube

22: entrance 24: internal passage

26: outlet 30: planar heating element

32: electrode 34: outer tube

34a: spacer 35: euro

36: plate 40: blowing fan

50: support 60: heating substrate

62: euro 70: planar heating element

72: electrode

The present invention relates to a hot air fan using a planar heating element, and more particularly, to a hot air fan using a planar heating element which can reduce energy loss due to high thermal efficiency, and can easily control the blowing temperature as desired.

An example of a warm air fan is a warm air fan using a heating hot wire. The heating hot air heater includes a heating hot wire for generating high temperature heat by an applied power source, and a blowing fan for blowing air to the heating hot wire to blow the heating air around the heating hot wire to the heating area.

Such a heating hot air heater has the advantage that the temperature increase rate is very fast. Therefore, it is used a lot in the place where fast heating is required.

By the way, such a heating hot air heater has the advantage that the temperature increase rate is very fast, but the thermal efficiency is very low, there is a problem that the energy consumption is high. In addition, the heating hot air heater has a problem that generates a gas harmful to the human body in the process of heating the heating wire of the metallic material to a high temperature.

On the other hand, as another example of the warm air fan, there is a warm air fan using a positive temperature coefficient (hereinafter, referred to as a "PTC heater") heater. The PTC heater type air blower is composed of a PTC heater which generates heat at a high temperature by an applied current, and a blower fan which blows air into the PTC heater and blows the heating air around the PTC heater to the heating area.

Such a PTC heater type hot air blower can control the heating temperature at a constant temperature by controlling the current flow of the PTC heater, so that the blowing air temperature can be adjusted.

However, such a PTC heater type hot air blower has an advantage of controlling the blowing temperature, but has a disadvantage of being very inconvenient to use because the temperature increase rate is very slow. Therefore, there is a problem that it is unsuitable for use in a place where fast heating is required, and due to this problem, the PTC heater heater is generally used for preheating of a vehicle interior.

As another example of the warm air fan, there is a warm air fan using a heat pipe. The heat pipe type heat blower is composed of a heat pipe which generates heat at a high temperature as the heat medium is vaporized, and a blower fan which blows air into the heat pipe and blows the heating air around the heat pipe to the heating area.

However, such a heat pipe type hot air blower has a disadvantage in that it uses a heat medium and thus consumes a lot of energy and is not suitable for supplying a large amount of hot air.

In addition, the heat pipe type hot air blower has various disadvantages in that its structure is very complicated because various pipes for transferring the heat medium, heating heaters for vaporizing the heat medium, and condensers for condensing the vaporized heat medium must be provided. Therefore, a lot of manufacturing costs are consumed, the size is large, there is a problem that frequent breakdown.

The present invention has been made to solve the conventional problems as described above, the purpose is to reduce the energy loss to the maximum as the thermal efficiency is very high, easy to control the temperature of the planar heating element that can adjust the blowing temperature as desired It is to provide a used warm fan.

Another object of the present invention is to provide a warm air fan using a planar heating element that can reduce the manufacturing cost and can reduce the size.

Still another object of the present invention is to provide a hot air fan using a planar heating element that does not generate harmful substances harmful to the human body during operation.

Another object of the present invention, by not generating a harmful substance during operation, when used as an industrial dryer, such as car paint drying line, textile drying line, can provide the quality of the product, when heating the house, such as a vinyl house, In addition to helping to grow crops, it is possible to provide eco-friendly cultivation to improve the quality of the harvest and increase the yield to provide a heating fan using a planar heating element that can help to increase farm income.

Still another object of the present invention is to provide a warm air heater using a planar heating element that can be manufactured as a high quality product by supplying environmentally friendly warm air when supplying warm air to dry agricultural and marine products by not generating harmful substances during operation. There is.

Features of the present invention to achieve this object, the casing; At least one heating tube installed in the casing and having an inner passage through which air may pass; A planar heating element provided on an outer surface of each heating tube and generating heat energy by an applied power source to heat air passing through an inner passage of the heating tube; There is a hot air heater using a planar heating element including a blowing fan for blowing air in the inner passage of the heating tube.

Another feature of the invention, the casing; At least one plate-type heating substrate installed side by side at intervals on the casing such that a flow path is formed between each other; A planar heating element provided on an outer surface of each of the heating substrates and generating heat energy by an applied power source to heat air passing through a flow path between the heating substrates; There is a hot air heater using a planar heating element including a blowing fan for blowing air in the flow path between the heating substrate.

Hereinafter, a preferred embodiment of a hot air heater using a planar heating element according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view schematically showing the configuration of a warm air heater using a planar heating element according to the present invention, Figure 2 is a perspective view showing a heating tube and a planar heating element constituting the warm air fan of the present invention, Figure 3 It is a perspective view which shows the modification of a heat generating tube.

First, referring to FIG. 1, a warm air heater using the planar heating element of the present invention includes a casing 10. The casing 10 is provided with a controller 12 for controlling the device, and a series of push buttons 14 and a timer 15 for adjusting the controller 12 are arranged outside the casing 10.

The casing 10 includes an internal blower chamber 16, and the blower chamber 16 includes an inlet port 17 on one side and a discharge port 18 on the other side. The introduction port 17 introduces air, and the discharge port 18 discharges the introduced air. Here, in the drawings of the present invention, although the casing 10 is configured in a box shape, the casing 10 may be configured in a scroll type in some cases.

On the other hand, inside the blower chamber 16, a plurality of heat generating tubes 20 are installed side by side in parallel with each other in the inlet 17. The heating tube 20 passes through an inlet 22 facing the inlet 17 of the blower chamber 16, an inner passage 24 for transferring air introduced into the inlet 22, and an inner passage 24. It has an outlet 26 for discharging one air toward the discharge port 18.

These heating tubes 20 is preferably made of a material having heat resistance and low expansion properties, for example, quartz tube, ceramic tube. And the number of the heating tube 20, the number varies depending on the size of the casing 10 and the capacity of the hot air blower, at least one, and if the number is small, as shown in Figure 2, in parallel with each other When arranged in a row and the number is large, as shown in FIG. 3, it is preferable to arrange the rows and columns in alignment. Here, the electrodes 32 of the heating tube 20 arranged in rows and columns are connected in series with each other.

As shown in FIG. 1, a plane heater 30 is installed on an outer surface of each heating tube 20, and a plurality of electrodes 32 to which power is applied to the surface of the planar heating element 30. It is attached at intervals.

The planar heating element 30 is formed as a thin film by applying a conductive paint to the heating tube 20 as a kind of resistor. For reference, the planar heating element 30 can be operated even at low power, and the energy efficiency is very high. And controlling the current flow applied has a feature that the heating temperature is controlled. Since the planar heating element 30 is already known, a detailed description thereof will be omitted.

The planar heating element 30 heats the heat generating tube 20 while generating heat at a high temperature by a power source applied to the electrode 32, and heats the heat generating tube 20 so that the inner passage 24 of the heat generating tube 20 is heated. Heat the air flowing along) to make hot air.

On the other hand, the electrodes 32 of each heating tube 20 are electrically connected in series to each other, and serves to apply the power applied from the controller 12 to the planar heating element 30 of each heating tube 20. . This electrode 32 is preferably composed of a "silver" material.

Referring again to FIG. 1, the warmer of the present invention includes an outer tube 34 disposed at intervals around each of the heating tubes 20.

The outer tube 34 is provided at intervals around the heating tube 20 by a clip-shaped spacer 34a. The outer tube 34 is formed at intervals around the heating tube 20 to form a flow path 35 between the heating tube 20, the air flows through the formed flow path 35 can be have. In particular, the air flowing along the flow path 35 is made of high temperature warm air while being heated by the heating tube (20).

Here, the outer tube 34 is preferably composed of a glass material having heat resistance and low expansion characteristics. Of course, in some cases, it is also possible to manufacture a quartz tube, a ceramic tube.

On the other hand, the diaphragm 36 is installed on both sides of the outer tube 34. The diaphragm 36 serves to block the space between the outer tubes 34 and the space between the outer tube 34 and the casing 10. Therefore, when the blowing fan 40 to be described later blows air, the blown air flows between the inner passage 24 of the heating tube 20 and the heating tube 20 and the outer tube 34. To be introduced in full.

Referring again to FIG. 1, the warmer of the present invention includes a blower fan 40 for blowing air into the inner passage 24 of the heating tube 20.

The blowing fan 40 is installed at the inlet port 17 side of the blower chamber 16, and after sucking the air outside the inlet port 17, the sucked air is discharged from the inlet 22 of the heating tubes 20. , And blows into the flow path 35 between the heating tube 20 and the outer tube 34.

The blower fan 40 blows inhaled air into the inlet 22 of the heat generating tube 20 and the flow path 35 between the heat generating tube 20 and the outer tube 34, thereby providing an inlet 22. And the air introduced into the flow path 35 may be heated by the heating tube 20 while flowing along the flow path 35 and the inner passage 24 of the heating tube 20, and the heated air may exit the outlet 26. And through the discharge port 18 of the casing 10 can be blown out of the casing (10).

On the other hand, such a blowing fan 40, it is composed of a propeller (Propeller) fan, it may be composed of a Sirocco (Sirocco) fan in some cases. In the drawings of the present invention, although the blower fan 40 is installed at the inlet 22 side of the heating tube 20 to blow air into the heating tube 20, the heating tube 20 may be used in some cases. It is also installed on the outlet 26 side of the), it is also possible to suck the air into the inner passage 24 of the heating tube (20).

Next, an operation example of the present invention having such a configuration will be described with reference to FIG. 1. First, the present invention is operated using the button 14 of the controller 12. Then, the heating tube 20 generates heat while power is supplied to the planar heating element 30, and at the same time, the blower fan 40 is operated, and the inner passage 24 of the heating tube 20, the heating tube 20, and the outside thereof. Air is blown into the flow path 35 between the tubes 34.

On the other hand, the air introduced into the inner passage 24 and the flow path 35 is heated while flowing along the inner passage 24 and the flow path 35, and the heated air is discharged from the outlet 26 and the casing 10. While being discharged to 18, it is blown to the heating area.

According to the present invention having such a configuration, since the planar heating element 30 which is operated at low power and has a very high energy efficiency can be used, energy consumption can be reduced to the maximum, and thus operating costs can be reduced.

In addition, since the heat generation temperature can be controlled, the blowing temperature can be adjusted as desired, and by having a simple structure, the manufacturing cost can be reduced, and the size and size can be reduced.

In addition, since the planar heating element 30 is used, no harmful substances are generated during operation. Therefore, when heating the greenhouse, or drying the agricultural and marine products, it can be produced in a high-quality product by supplying environmentally friendly warm air.

Next, FIGS. 4 and 5 are views showing another embodiment of the warm air fan according to the present invention.

In another embodiment, the air blower is provided with a pair of supports 50 that are compatible with the blowing chamber 16 of the casing 10 at a predetermined interval, and the support 50 has a plurality of flat heat generating substrates 60. It is installed in multiple stages in parallel with each other at this interval, each of the heating substrate 60 is provided with a planar heating element (70).

The heat generating substrates 60 are arranged to be aligned with the inlet 17 and the discharge port 18 of the casing 10, and are arranged at intervals therebetween, so that the flow paths 62 are formed between each other, and the flow paths 62 are formed. ) Allows the air flowing into the inlet 17 of the casing 10 to flow toward the discharge port 18 while being distributed.

The planar heating element 70 is formed on a heating substrate 60 and formed of a thin film. The planar heating element 70 heats the heating substrate 60 while heating at a high temperature by an applied power source, and heats the heating substrate 60 as the heating substrate 60 is heated. The air flowing along the flow path 62 between the 60 is heated to make a high temperature warm air.

On the other hand, the planar heating element 70 of each heating substrate 60 is attached to the electrode 72 for applying power, the electrodes 72 of each of the heating substrate 60 are electrically connected to each other. This electrode 72 is preferably composed of a "silver" material.

Since the warmer of this other embodiment uses the flat plate heater 60 as a means for heating the air, more flat plate heaters 60 can be arranged in the blower chamber 16, thus heating the air. It is possible to increase the area to the maximum, thereby increasing the heating capacity of the hot air fan.

The embodiments described above are merely to describe preferred embodiments of the present invention, the scope of the present invention is not limited to the described embodiments, those skilled in the art within the spirit and claims of the present invention It will be understood that various changes, modifications, or substitutions may be made thereto, and such embodiments are to be understood as being within the scope of the present invention.

As described above, according to the hot air heater using the planar heating element according to the present invention, since the planar heating element is operated at low power and has a very high energy efficiency, the energy consumption can be reduced to the maximum, and thus, operating cost can be reduced. Can be. In addition, since the heating temperature can be controlled, the blowing temperature can be adjusted as desired, and by having a simple structure, the manufacturing cost can be reduced, and the size can be reduced and the weight can be reduced.

Claims (5)

A casing 10; At least one heating tube 20 installed in the casing 10 and having an inner passage 24 through which air can pass; A planar heating element (30) provided on an outer surface of each of the heating tubes (20) and generating heat energy by an applied power to heat air passing through the inner passage (24) of the heating tube (20); In the warm air heater using a planar heating element which is provided on the inlet side of the inner passage 24 and comprises a blowing fan 40 for blowing air, An outer tube 34 disposed at intervals around each of the heating tubes 20 to form a flow path 35 of air over an outer circumference of the heating tube 20; A spacer 34a having a clip shape provided at both ends of the outer tube 34 to support the heating tube 20 in the outer tube 34; And a diaphragm 36 which completely blocks the space between the outer tubes 34 and the space between the outer tube 34 and the casing 10, The air passing through the blowing fan 40 is configured to pass through only the inner passage 24 in the heating tube 20 and the flow path 35 formed between the heating tube 20 and the outer tube 34. Hot air fan using a planar heating element characterized in that. delete delete delete delete

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