JP2009047398A - Air circulation duct - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem in an indoor heater such as a fan heater wherein since only a ceiling direction becomes high temperature and the temperature near the floor where persons stay is not easily raised by heating by the indoor heater, as conventional countermeasures, an air circulator such as an electric fan is used to circulate air inside a room to equalize the temperature, which requires an additional place to install such an apparatus and additional energy to drive it, leading to cost increase; and thus to provide equipment capable of circulating air in a room only by using a heater. <P>SOLUTION: Generally a suction port of a fan heater is located near the floor. Therefore, by installing an air suction duct on the back face of the fan heater etc., air in the ceiling direction can be sucked to generate an air circulation flow in the vertical direction in the room. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a duct in a heater or the like that circulates combustion air indoors.

Recently, a lot of heating appliances such as fan heaters have been widely used in each home, and the heating appliances can be used to heat indoors so that they can spend comfortably even in cold weather. And many of such heating appliances etc. are drive | operated so that it may become this preset temperature, if temperature is set by the temperature setting means provided in the heating appliance etc.
In order to reduce the unevenness of the room temperature, air is flowed using a circulator.
JP-A-5-280490

  Here, when the room is heated by an air conditioner, a fan heater, or the like in winter, temperature unevenness occurs, such as warm air in the upper part of the room and cold air in the lower part.

  Therefore, when heating is performed by raising the set temperature in an attempt to warm the entire room, the upper part becomes too hot and the heating cost is wasted.

  In general, for heating appliances, etc., if the temperature information from the built-in temperature sensor determines that the room temperature during heating has risen above the set temperature, for example, the heating value is reduced or paused, and the temperature falls below the set temperature. When it is determined that the room has been operated, the operation is resumed so that the room is kept at a constant temperature.

  However, when heating is performed based on the sensor standard attached to the heater, the warm air accumulates upward, so the room temperature detected by the temperature sensor is a low temperature below the room. Above this, there is a problem that energy is wasted at high temperatures.

On the other hand, if the sensor is attached to the upper part of the room to make the set temperature suitable for a person, the lower part feels insufficient heating, so that the set temperature is raised, and the same problem as described above occurs.
In order to reduce such temperature unevenness at the time of heating, it is effective to perform circulation using a fan. However, the place where the fan is installed and the energy to move are required.

  Therefore, an object of this invention is to provide the method and apparatus which make the temperature of a room uniform, without using energy other than the energy of heating.

  According to the present invention, in a heating device such as a fan heater having an air inlet and an outlet in the same room, a duct for introducing an air flow from the ceiling direction of the air inlet of the fan heater or the like is provided.

According to the present invention, since the higher-temperature air in the ceiling direction is sucked from the duct provided in the air inlet and the indoor air is circulated, the air can be promptly used without using new energy for air circulation. The temperature can be adjusted to a suitable temperature, temperature irregularities can be eliminated quickly, heating costs can be reduced, and energy can be saved.
In addition, the conventional fan heater has a drawback that cold air circulates from a low position in front of the fan heater and sucks air near the floor, and cold air hits the body when standing nearby. In the present invention, this problem is also solved.

Embodiments of the present invention will be described below with reference to the drawings.
Example 1
In FIG. 1, reference numeral 1 denotes a heater such as a fan heater, which has an air inlet 6 and a warm air outlet 7. By providing an air suction duct 21 at the air inlet of the heater so that the air in the upper part of the room flows, the air temperature deviation in the room is automatically eliminated.
The air suction duct 21 is placed so that the exhaust port 9 substantially overlaps the intake port 6 of a commercially available fan heater. In order to increase the degree of sealing, the sealing material 3 and the bonding material 4 may be sandwiched between them. Examples of the sealing material 3 include sponge-like gap tape and rubber, and the bonding material 4 includes a fastening material such as a hook-and-loop fastener, a plate-like magnet, a suction cup, an adhesive, a double-sided adhesive tape, and a bolt.

  The air suction duct 21 is opened only at the upper end and the intake port of the fan heater, and the other part is shielded by a thin film such as metal, plastic, cloth, paper or the like. The lower end may be opened when contacting the floor. Since the shielding surface considerably blocks air even with a coarse mesh material, it is desirable that the shielding surface be light. As an example of weight reduction, when the frame 21c is made of a solid material such as a wire or plastic and the shielding surface is shown as an example of three divisions, the elastic materials 21a and 21b are fitted into the frame. Examples of stretchable materials include jerseys and rubber nets. The material 21a is open in the vicinity of the air inlet of the fan heater. In this case, if an imbalance occurs in the opening when fitted, it is possible to close the opening with a material having a low air flow resistance, for example, a breathable mesh sheet. It can also be fixed with hook-and-loop fasteners.

The corresponding opening size of the air suction duct 21 in the vicinity of the fan heater intake port 6 may be approximately the size of the fan heater intake port 6 or a little larger, so that it is somewhat larger than the size of the commercially available fan heater model. Even if there is, there is a single type of air suction duct that can be used flexibly.
The solid material frame 21c may have an extendable mechanism. If stretchable materials are used for the shielding materials 21a and 21b, the length can be changed both upward and downward. Although this example is an example of three divisions, the number of divisions may be increased or decreased.
If there is a possibility that a significant difference occurs in the height direction position of the air intake duct 6 of the fan heater and the exhaust port 9 of the air suction duct, the height dimension of the shielding material 21a is prepared to be longer. After the height position is adjusted, the remaining shielding material is folded back and forth.

(Example 2)
FIG. 2 shows an embodiment in which the air suction duct 22 is attached to the side surface portion of the fan heater 1. In FIG. 2, the fan heater inlet 6 and the fan heater warm air outlet 7 are omitted.

(Example 3)
FIG. 3 shows that the mounting width of the air suction duct 22 can be adjusted so that it can be applied to the side surface of the fan heater as in FIG. It is. In other words, the coupling portion 5 is coupled to the part 23a of the air suction duct with an adhesive tape or the like so that 23b is slightly overlapped. Alternatively, two duct ends may be inserted into a coupling member having the shape of “D” and coupled.
FIG. 3 shows an example in which, in addition to the top surface, the portion in contact with the intake port of the fan heater and the bottom surface are open, this can be applied to other embodiments.

Example 4
FIG. 4 shows a cylindrical air suction duct 24. In this example, a flat material such as paper or cloth that has a certain degree of rigidity and can be cut with scissors or the like is rounded and cut, and is attached without gaps according to the dimensions of the fan heater. Even if the bottom of the duct is open, it can be functionally placed on the floor.

Although not shown in the drawings, any of the above-described examples may be installed by separately arranging materials for the bottom surface, sealing the bottom surface, and floating from the floor. It is also possible to combine with a known stove guard for safety.
Furthermore, the air suction duct can be integrated with the fan heater body.

It is a perspective view which shows the structure and effect | action of Example 1. FIG. 10 is a perspective view showing a structure of Example 2. FIG. 6 is a perspective view showing a structure of Example 3. FIG. 10 is a perspective view showing a structure of Example 4. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fan heater 21 Air suction duct 21a The material 21b which shields the circumference | surroundings of an air suction duct which opens the part which hits the inlet 6 of a fan heater 21c The material 21c which shields the circumference | surroundings of an air suction duct Air 22 Suction Duct 23a Part of Air Suction Duct 23b Part of Air Suction Duct 24 Air Suction Duct 3 Sealing Material 4 Bonding Material 5 Joint 6 Fan Heater Inlet 7 Fan Heater Warm Outlet 8 Air Suction Duct Inlet 9 Exhaust port of air suction duct

Claims (2)

  In a heating device such as a fan heater having a heating source and a blower in the device, a temperature difference depending on a place in the room is provided, which is provided with a duct that guides air above the room toward the air intake 6 of the heater. How to reduce.   In a heating device such as a fan heater having a heating source and a blower in the device, an air inlet 8 of a duct in a direction for sucking air above the room, and an air outlet for discharging the air toward the air inlet 6 of the heating device 9 an air suction duct.

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