KR20100123947A - Hot blast heater using carbon nano tube - Google Patents

Abstract

PURPOSE: A hot blast heater using carbon nano tubes is provided to increase productivity due to a slim structure and minimize noise by easily controlling resistance. CONSTITUTION: A hot blast heater(100) using carbon nano tubes comprises a hollow housing(110), a fan member(120), and a heater(140). The hollow housing has an inlet(115) and an outlet(118). The fan member is installed inside the housing and is rotated. The heater is installed inside the housing. The heater generates heat by power source and heats internal air inside housing. The heater is formed of multiple hollow pipes and heaters. The heaters are inserted into the mounting pipe positioned between the hollow pipes.

Description

Hot Blast Heater Using Carbon Nano Tube

The present invention relates to a hot air fan using a heating element, and more particularly, to a hot air fan using carbon nanotubes that can control the heating speed and easily adjust resistance and minimize noise.

Hot air blower is popularly used as a device to increase the indoor temperature in winter.

As an example of the hot air fan, there is a hot 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.

These heating hot air heaters are used in many places where fast heating is required because of the advantage that the heating rate is very fast. However, since the heating hot air heater has a very low thermal efficiency, there is a problem in that energy consumption is high and a gas harmful to the human body is generated in the process of heating the metal wire to a high temperature.

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

The 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, but the heating rate is very inconvenient to use. Therefore, it is not suitable for use in a place where fast heating is required, and is generally used for preheating of a car interior.

Another example of a hot air fan is a hot air fan using a heat pipe. The heat pipe type heat blower is composed of a heat pipe that generates high temperature heat as the heat medium is vaporized, and a blower fan that blows air into the heating area by blowing air to the heat pipe. However, such a heat pipe type hot air blower has a disadvantage of high energy consumption and inadequate supply of a large amount of hot air because it uses a heat medium.

In addition, the heat pipe type heat 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 installed. 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 in view of the above points, in particular, the heating speed is fast and the resistance can be easily adjusted to minimize noise, and the simple structure can increase the production efficiency and carbon nanotubes do not generate environmental pollutants It relates to a hot air fan using.

The hot air fan using the carbon nanotubes according to the present invention provided to achieve the above object, the hollow housing having an inlet and discharge port to form the appearance of the air blower and flow air; A fan member provided on one side of the housing to rotate; And a heat generating unit configured to generate heat by the power applied to the inside of the housing and to heat the air in the housing, wherein the heat generating unit is provided with a plurality of stacked hollow conduit parts and an installation pipe provided between the conduit parts. It is composed of a heater unit and the heater unit is characterized in that the laminated structure is provided with carbon nanotubes are heated inside.

The heater unit plate-shaped carbon nanotubes connected to the terminal to receive electricity from the outside; A heat sink formed to cover the carbon nanotubes; And an insulating material provided between the carbon nanotubes and the heat sink.

Wherein the conduit portion is hexagonal in cross-section is preferably made of aluminum and the heat sink is preferably made of aluminum.

The laminated plurality of conduits are connected by a connection member provided at one end of the conduit part, and the connection member is a hollow cylindrical outer tube, an inner tube provided inside and spaced apart from the outer tube, and the outer tube and the It is preferably provided between the inner tube and the insertion groove is inserted into one end of the conduit portion, it is preferable that the connection member is fitted to the end of each conduit portion.

According to the warm air blower using the carbon nanotube of the present invention described above, it is possible to minimize the noise by maximizing the thermal efficiency, the heating speed is fast and easily adjust the resistance, and can increase the production efficiency as a simple structure (slim structure). In addition, it provides heating capacity regardless of the wind speed and is stable with no stress on the heater and fuse since there is no difference between the inflow current and the normal current. In addition, no harmful substances or environmental pollutants are generated during the heating process.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a warm air heater 100 using carbon nanotubes according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a configuration diagram of a warm air fan 100 using carbon nanotubes according to the present invention, FIG. 2 is an enlarged view of the heat generating unit 140 of the warm air fan 100 shown in FIG. 1, and FIG. 4 is an enlarged view illustrating a state in which the connection member 170 of FIG. 3 is coupled to FIG. 2, and FIG. 5 is a hot air heater 100 of FIG. 1. It is a block diagram of the heater part 150 installed in the.

Referring to Figure 1, the hot air fan 100 using a carbon nanotube according to an embodiment of the present invention is provided on one side inside the housing 110, the housing 110 to form the appearance of the warm air itself rotates to flow air The fan member 120, which is provided inside the housing 110 and generates heat by the power applied from the outside and consists of a heat generating unit 140 for heating the air flowing by the rotation operation of the fan member 120. .

The housing 110 is provided with an inlet 115 through which air can be introduced from the outside and a discharge port 118 through which air heated by the heat generating unit 140 can be discharged to the outside, and a fan member 120 inside. The hollow shape in which the heat generating unit 140, the controller 170, etc. may be provided is preferable. Of course, according to the user's convenience, it may be a hollow shape of a cylinder, a cube, or a polyhedron. Here, the blower 160 refers to a predetermined internal space in which air can flow by the rotation of the fan member 120 powered by the fan motor 123.

A controller 170 is installed on one inner side of the housing 110 to control the apparatus, and a plurality of button portions 173 for controlling the controller 170 and a display indicating the state of the apparatus are provided on the outer side of the housing 110. 175 may be installed. In addition, the fixed support 180 provided on the lower side of the housing 110 prevents the warm air fan 100 from easily moving by an operation or an external force of the fan member 120. A separate mesh room may be provided on the inlet 115 or the outlet 118 of the housing 110 to filter foreign matter.

The heat generating unit 140 is provided with both ends supported by the shaft member 125 installed on one inner surface of the housing 110, and the fan member 120 is also supported by the shaft member 125.

1 to 5, the heat generating unit 140 is composed of a plurality of stacked hollow conduit unit 144, the heater unit 150 is inserted into the installation pipe 148 provided inside the conduit unit 144. The conduit part 144 may be hexagonal in cross section and may be made of aluminum, and the heater part 150 may cover the periphery of the plate-shaped carbon nanotubes 152 and carbon nanotubes 152 connected to terminals receiving electricity from the outside. It is configured to include an insulating material 155 provided between the heat sink 154, the carbon nanotube 152 and the heat sink 154 formed to. Here, the heat sink 154 is also preferably made of aluminum. The conduit part 144 and the heat sink 154 serve to heat the air or water flowing in the conduit part 144 by receiving heat generated from the carbon nanotubes, and therefore, it is preferable to use an aluminum material having excellent thermal conductivity.

The conduit portion 144 may have a shape other than a hexagon in cross section, and a shape that is easy to heat air or water flowing in the conduit portion 144 is preferable.

The heater unit 150 receives electricity from the outside through the terminal 156 to heat the carbon nanotubes 152, and the heat generated from the carbon nanotubes 152 is transferred to the heat sink 154 surrounding the heaters 154. The conduit unit 144 provided with the unit 150 receives air from the heat sink 154 to heat air flowing in the conduit unit 144. In this case, an additional insulating material 155 may be provided between the carbon nanotubes 152 and the heat sink 154 to prevent current from passing through and prevent excessive heat from being transferred.

The plurality of conduits 144 is connected by a connection member 170 provided at one end of the conduit 144, the connection member 170 is a predetermined distance from the outer tube 172, the outer tube 172 of the hollow cylinder It is provided between the inner tube 175, the inner tube 175, the outer tube 172 and the inner tube 175 spaced apart by an insertion groove 174 that can be inserted into one end of each of the conduit 144. (See Figure 3)

Here, the connection member 170 is fitted to the end of each conduit portion 144, and the space between the conduit portions 144 is formed by the connection member 170 having a circular cross section. That is, since the cross section of the outer tube 172 of the connecting member is circular, the end of the conduit portion 144 is disposed so that the circular outer tube 172 is in contact with each other, and a gap of a predetermined space is generated between the circular cross sections. As a result, a gap is generated between the conduits 144 to heat the flow air more effectively (see FIG. 4).

Carbon nanotubes 152 used in the heater unit 150 is a carbon allotrope composed of carbon present in a large amount on the earth and is a material in which one carbon is combined with another carbon atom and a hexagonal honeycomb pattern to form a tube. Is a very small region with a diameter of about one nanometer (one billionth of a meter). Carbon nanotubes have excellent mechanical properties, electrical selectivity, excellent field emission characteristics, high efficiency hydrogen storage media, and are known as perfect new materials with few defects among existing materials.

By providing a plurality of the carbon nanotubes as described above on the inner side of the conduit 144, the heat efficiency is maximized by quickly maximizing the heating rate and the resistance can be easily controlled to minimize the noise, and can increase the production efficiency as a simple structure. Particularly, it generates stable heating effect regardless of wind speed and is stable because there is no big difference between input current and normal current.

In particular, the insulation coating on the carbon nanotubes can be more stable electrical.

Air heated while passing through the heat generating unit 140 is discharged to the outside of the housing 110 through the discharge port 118. The fan member 120 is generally composed of a propeller fan and a sirocco fan may be used. In some cases, it may be provided near the discharge port 118, not near the inlet 115, to suck the air heated by the heat generating unit 140.

In addition to the carbon nanotubes, materials having heat resistance and low expansion properties, for example, glass, quartz tubes, ceramic tubes, and the like, may be used. The number of the heat generating unit 140 may vary depending on the size of the housing 110 and the capacity of the hot air heater 100 and may be arranged in a row when the number is small, but when the number of the heating unit 140 is large, the heat generating unit 140 may be arranged in rows and columns. desirable.

The warm air heater 100 according to the present invention preferably uses a three-phase power source of R, S, and T, and a contactless relay (SSR). Solid-state relays (SSRs) have faster response times, longer lifespans, and less electrical noise than electromechanical relays for clean operation. It also has the advantage of operating completely silent. It is also possible to adjust the heating temperature at low or high power.

According to the warm air fan using carbon nanotubes according to FIGS. 1 to 5, the heat efficiency is maximized, the heating speed is fast, the resistance can be easily adjusted to minimize the noise, and the production efficiency can be increased as a simple structure.

6 is a table comparing the temperature increase rate of the warm air heater (A) and the general PTC heater (B) using the carbon nanotubes according to the present invention, Figure 7 is a table for the numerical value of the carbon nanotubes according to the present invention It is a table | surface and the numerical value of the graph which compared the thermal efficiency of the required warm air heater (A) and the general PTC heater (B).

6 and 7, the warm air heater (A) using the carbon nanotubes is faster than the PTC heater (B), the temperature increase rate is faster and superior temperature can reduce unnecessary power (see Figure 6), PTC heater (B) is a wide range of the flow rate resistance change, but the warm air heater (A) using carbon nanotubes can be seen that the efficiency of heating is increased by reducing the change in resistance due to the flow rate (see Fig. 7).

According to the hot air blower using carbon nanotubes according to the present invention, it is possible to minimize the noise by maximizing the thermal efficiency and the heating speed is fast and easily adjust the resistance and can increase the production efficiency as a simple structure (slim structure). In addition, it provides heating capacity regardless of the wind speed, and it is not different from the inflow current and the normal current, so it is stable without affecting the heater and the fuse.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, a person having ordinary skill in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are possible. Equivalents should be considered to be within the scope of the present invention.

1 is a configuration diagram of a warm air fan using carbon nanotubes according to the present invention;

FIG. 2 is an enlarged view of a heating unit of the warm air fan shown in FIG. 1;

3 is a cross-sectional view of the connection member provided between the heating parts of FIG.

4 is an enlarged view illustrating a state in which the connection member of FIG. 3 is coupled to FIG. 2;

5 is a configuration diagram of a heater unit installed in the warm air fan of FIG. 1;

6 is a table for comparing the temperature increase rate of the warm air heater and the general PTC heater using a carbon nanotube according to the present invention, and a table for the numerical value of the graph, and

Figure 7 is a table for the numerical value of the graph and the graph comparing the thermal efficiency of the warm air heater using a carbon nanotube according to the present invention and a typical PTC heater.

<Explanation of symbols for the main parts of the drawings>

100: hot air fan 110: housing

115: inlet 118: outlet

120: fan member 123: fan motor

125: shaft member 140: heat generating portion

144: conduit 148: installation pipe

150: heater 152: carbon nanotubes

154: heat dissipation unit 155: insulating material

156: terminal 160: blower

170: connecting member 172: outer tube

174: insertion groove 175: inner tube

190: fixed stand

Claims (6)

In the warm fan, A hollow housing provided with an inlet and an outlet for forming an exterior of the hot air fan and allowing air to flow; A fan member provided on one side of the housing to rotate; And a heat generating unit configured to generate heat by a power applied to the inside of the housing and to heat air in the housing. The heat generating part comprises a plurality of stacked hollow conduit parts, and a heater part inserted into an installation pipe provided between the conduit parts, and the heater part is a laminated structure, wherein the carbon nanotubes are provided with the carbon nanotubes heated therein. Used warmer. The method of claim 1, wherein the heater unit A plate-shaped carbon nanotube connected to a terminal receiving electricity from the outside; A heat sink formed to cover the carbon nanotubes; And, And an insulating material provided between the carbon nanotubes and the heat sink.  The method of claim 1, The conduit portion is a hexagonal cross-section hot air fan using carbon nanotubes, characterized in that the aluminum material. The method of claim 1, The heat sink is a hot air fan using carbon nanotubes, characterized in that the aluminum material. The method of claim 1, The laminated plurality of conduits are warm air fans using carbon nanotubes, characterized in that the joint is provided by a connecting member provided at one end of the conduit. The method of claim 5, wherein the connecting member A hollow cylindrical outer tube, an inner tube spaced apart from the outer tube, and provided inside, and an insertion groove provided between the outer tube and the inner tube to insert one end of the conduit portion, the end of each conduit portion Hot air blower using carbon nanotubes, characterized in that the connection member is fitted to the coupling.

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