JP3861442B2 - Hot air heater with air purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a configuration of a hot air heating apparatus equipped with an air cleaner.
[0002]
[Prior art]
A conventional hot air heating device with an air cleaner is shown in FIG. In the figure, the gas supplied by the burner 1 is combusted. There is a combustion chamber 2 that mixes exhaust gas generated by combustion and air. A convection fan 4 for sending warm air 3 is provided below the burner 1. A warm air outlet 5 is attached in front of the convection fan 4. On the rear surface of the case 6 is a convection filter 8 for taking in convection air 7. An air cleaning filter 9 for removing dust and odors is attached to the inside. The air cleaning filter 9 is composed of a deodorizing portion made of activated carbon or the like that adsorbs odors, and a cotton-like or granular dust collecting portion that takes dust particles.
[0003]
Next, the operation will be described. Gas is burned by the burner 1, and the high-temperature combustion exhaust gas 10 generated is mixed with the convection air 7 a that has passed through the convection filter 8 and the air cleaning filter 9 in the combustion air passage 11 of the combustion chamber 2. The mixed warm air is sent out as warm air 3 from the warm air outlet 5 at the lower part of the front surface by the convection fan 4 to perform heating.
[0004]
Moreover, when the tobacco particles and dust contained in the air pass through the air cleaning filter 9, they adhere to the dust collection part which is in the form of cotton or granules. Finer particles are attached as the cotton-like granular dust collection portion becomes finer and the distance that passes through becomes longer. The odor is deodorized by being adsorbed on a deodorizing part made of activated carbon or the like.
[0005]
[Problems to be solved by the invention]
In order to improve the dust collection rate and odor removal rate, it is necessary to reduce the size of the air cleaning filter and increase the thickness to increase the area in contact with air. However, in the air path configuration as described above, when the air cleaning filter as described above is attached, the resistance is large and the pressure loss is increased, the convection air is decreased, and the hot air temperature is increased. Therefore, a fine air cleaning filter with high dust collection performance cannot be attached, the dust collection performance is lowered, and dust and odor cannot be quickly removed.
[0006]
Further, in order to lower the hot air temperature, it is necessary to increase the rotational speed of the convection fan, which increases noise.
[0007]
Furthermore, during the heating operation, warm air is blown out from one hot air outlet by the convection fan to heat the room, so that the room temperature becomes higher near the ceiling and the room temperature is not uniform.
[0008]
In addition, when a full-fledged filter type air purifier is mounted on the hot air heater, the air purifying section formed of resin parts may be deformed during abnormal use due to the warm air of the hot air heater.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention operates an convection fan, sends warm air generated by combustion, and heats the warm air by heating it with an air cleaning fan and an air cleaning filter. It is the structure which provided the comprised air purifying part. In addition, a temperature detector is provided inside the grill and in the vicinity of the grill opening. As a result, it is strong against pressure loss, can obtain a large air volume, can be fitted with an air cleaning filter with high dust collection efficiency that takes out dust and odor, and a large fine surface area.・ Odor removal rate is improved. Therefore, it is possible to quickly remove odors and dust.
[0010]
In addition, since a temperature detector is provided inside the grill and in the vicinity of the grill opening, the hot air is cleaned by the air purifier when an obstacle is placed near the hot air outlet. If the air is sucked by the fan, the temperature is detected and the operation is stopped to prevent deformation of the resin parts.
[0011]
Further, by operating the air cleaning fan provided in the upper part during the heating operation, it is possible to agitate the high-temperature air near the ceiling and make the temperature of the indoor air uniform.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a burner that burns gas, a combustion chamber that mixes exhaust gas generated by combustion and air taken in from the outside, a convection fan for sending hot air, its hot air outlet, and combustion air A filter for removing dust and odors, and a blower that takes in outside air in a warm air heating unit composed of a filter unit for taking in air, and an air cleaning unit above the hot air heating unit and separated by a partition plate The air cleaner fan, the duct connecting the air cleaner fan inlet and the filter, the grill that covers the filter and removed by the user when the filter is replaced, and the duct opening communicates with the opening of the grill without passing through the filter And a temperature detector that is located in the air path and above the cut plate and that is provided in the vicinity of the opening of the grill.
[0013]
According to this, since it is strong against the pressure loss of the air passage, it is possible to mount an air purifying filter with high resistance and high efficiency, and the dust collection efficiency can be increased. In addition, a temperature detector is provided inside the grill and in the vicinity of the grill opening, so that when the obstacle is placed near the hot air outlet, the hot air is used to clean the air in the air purifier. If the air is sucked by the fan, the temperature is detected and the operation is stopped to prevent deformation of the resin parts and failure of the functional parts.
[0014]
According to the second aspect of the present invention, the air cleaning fan is slightly rotated during operation of the hot air heating unit. When an obstacle is placed in the vicinity of the hot air outlet, the temperature of the hot air can be detected quickly, and deformation of the resin parts and failure of the functional parts are prevented.
[0015]
In the invention according to claim 3, a part of the partition plate facing the side opposite to the hot air outlet side is cut out, and the grille and the intake portion for combustion air are communicated between the duct and the partition plate. It is a configuration. As a result, even when the air purifier is not in operation, the temperature of the hot air can be detected at an early stage by suction of the convection fan in the hot air heater when an obstacle is placed near the hot air outlet. It is possible to prevent deformation of resin parts and failure of functional parts at the time of abnormality.
[0016]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0017]
Example 1
FIG. 1 shows a sectional view of a gas warm air heating device with an air purifier in an embodiment of the present invention. In FIG. 1, the warm air heating unit is the same as the conventional example, and the description is omitted. An air purifying unit separated by a partition plate 24 is disposed above the hot air heating unit. Reference numeral 20 denotes a grill, which sucks air from the grill suction port 12 here. Reference numeral 13 denotes a filter for removing dust and odors. The filter 13 includes a deodorizing part made of activated carbon or the like that adsorbs odors, and a cotton-like or granular dust collecting part for removing dust particles. Attached to. Reference numeral 14 denotes a cleaned air outlet, and an air cleaning fan 15 is mounted in the air cleaning air passage 17 at a lower portion thereof. Reference numeral 18 denotes a duct, which connects the filter 13 and the fan suction port 19 of the air cleaning fan 15 and is connected without a gap. The air cleaning fan 15, the fan suction port 19, and the duct 18 are formed of resin or the like.
[0018]
Since the deodorizing performance or the dust collecting performance is lowered when the filter 13 is used for a long time, it needs to be replaced in about one year. The grill 20 covers the filter 13 and is removed by the user when the filter 13 is replaced. This is also molded with resin. There is a temperature detector 22 in the vicinity of the grill opening 21 inside the grill 20. The opening 21 is separated from the grill inlet 12 for sucking from the filter 13. The air sucked from the filter 13 is sucked from the fan suction port 19 of the air cleaning fan 15 through the duct 18.
[0019]
Since there is the duct 18, it is not sucked from a portion other than the filter 13, and even if there is a butt of parts, it is not sucked from the gap. Reference numeral 23 denotes a control device, which stops combustion of the hot air heating unit when the temperature detected by the temperature detector 22 reaches a predetermined temperature. The air cleaning fan 15, the convection fan 4, the burner 1 and the temperature detector 22 are electrically connected by a broken line in the figure.
[0020]
Next, the operation will be described. In FIG. 1, the air cleaning fan 15 rotates and the air cleaning air 16 a is sucked from the grill suction port 12 of the grill 20, dust and odor are removed by the filter 13, and the clean air 16 b from the air outlet 14 is obtained. Blown out.
[0021]
Because it is completely independent from the hot air heating unit (combustion chamber 2), it can be fitted with a fine air filter 13 that has a fine surface area to remove dust and odors, improving dust collection efficiency and odor removal rate. Dust and odor can be removed quickly. At this time, the temperature detector 22 in the air passage 25 communicating with the opening 21 of the grill without passing through the filter 13 in a part of the duct 18 monitors a normal temperature.
[0022]
During the heating operation, the mixed warm air is sent out as warm air 3 from the warm air outlet 5 at the lower part of the front surface by the convection fan 4 to perform heating. Although the warm air 3 is blown out in front of the device, the warm air rises to a higher level in the room because the temperature is high when the wind speed is lost. By operating the air cleaning fan 15 during the heating operation, the high-temperature air near the ceiling can be agitated to make the room temperature uniform.
[0023]
When an obstacle is placed near the hot air outlet 5, the hot air hits the obstacle and approaches the grill 20. At this time, when the air cleaning fan 15 is operated, the warm air is blown. Since the temperature of the hot air reaches 100 ° K at the maximum, the sucked hot air may damage parts made of resin and other main parts. Here, the temperature detector 22 detects the temperature of the hot air and transmits it to the control device 23. When the temperature becomes higher than a certain temperature, the control device 23 stops the operation of the hot air heating to prevent deformation of the resin parts. To do. Since the temperature detector 22 is provided in the air passage 25 which can be said to be an abnormal temperature watching portion and inside the grill opening portion 21 of the grill 20, it has a feature that the temperature of the hot air can be detected at an early stage.
[0024]
In addition, when a blanket or the like is placed over the device, warm air is trapped in the blanket and the temperature rises rapidly. Even at this time, the temperature detector 22 detects the temperature of the hot air and submits combustion to prevent deformation of the resin parts.
[0025]
(Example 2)
Even when the air cleaning unit is not operated, the air cleaning fan 15 is slightly rotated during the operation of the hot air heating unit.
When there is an obstacle in front of the device, hot air is sucked in when the air purifier is operating and the temperature of the hot air can be detected, but cannot be detected when the air purifier is not operating.
[0026]
Therefore, even when the air purifying unit is not operated, when the hot air heating unit is started, the air purifying fan 15 is slightly rotated, so that the temperature provided in the vicinity of the opening 21 inside the grill 20 is set. The detector 22 can detect the temperature of the hot air. When the temperature is high, the combustion is stopped, and the deformation of the grill 20 due to the hot air coming into contact with the grill 20 can be prevented.
[0027]
Example 3
A part of the partition plate 24 facing away from the hot air outlet side is cut out, and the grill 20 and the combustion air intake 26 are communicated between the duct 18 and the partition plate 24. Even when the air cleaning fan 15 is not in operation, when an obstacle is placed in the hot air outlet 5, the temperature of the hot air can be detected accurately at an early stage by the suction of the convection fan 4 in the hot air heating section, The deformation of the resin part can be prevented. When the temperature detector 22 is installed near the center of the grill 20, the effect is high. The temperature can be detected regardless of whether or not the air cleaning fan 15 is in operation.
[0028]
【The invention's effect】
As described above, according to the present invention, the air cleaner is provided at the upper part of the hot air heater, and the temperature detector is provided inside the grill and in the vicinity of the grill suction part, so that the pressure loss with high dust collection performance is achieved. A large air-cleaning filter can be installed to improve dust collection performance and odor removal performance, and can quickly remove odors and dust.
[0029]
In addition, when an obstacle is placed near the hot air outlet, or when a blanket is placed on it, when the hot air hits the obstacle and approaches the grill, the hot air is used to clean the air. The temperature detector detects the temperature of the hot air by the fan and stops the operation of the hot air heating when the temperature exceeds a certain temperature, thereby preventing deformation of the resin parts and damage to the main parts due to heat.
[0030]
In addition, when warm air generated by combustion is sent to the front of the device by a convection fan, the air cleaning fan can be operated to stir high-temperature air near the ceiling, making the room temperature uniform, Comfortable heating can be done.
[0031]
Even if the air purifier is not operating, the air purifier fan will turn slightly when starting the operation of the hot air heater, and if an obstacle is placed at the hot air outlet, the hot air will be detected, Stops combustion and prevents deformation of resin parts. In addition, since the air cleaning fan rotates slightly, it can be expected to have a room circulation effect.
[0032]
In addition, a part of the partition plate facing away from the hot air outlet side is cut out, and the grill and the intake air for combustion are communicated between the duct and the partition plate, so that the air cleaning fan can be operated or not. Regardless of this, when an obstacle is placed at the hot air outlet, the temperature of the hot air can be accurately detected at an early stage by suction of the convection fan of the hot air heating unit, and deformation of the resin parts can be prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a hot air heating apparatus with an air purifier in Embodiments 1 and 2 of the present invention. FIG. 2 is a cross sectional view of a hot air heating apparatus with an air purifier in Embodiment 3 of the present invention. 3] Cross-sectional view of a hot air heating device with an air cleaner in a conventional example [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Burner 2 Combustion chamber 4 Convection fan 5 Warm air blower outlet 13 Air cleaning filter 15 Air cleaning fan 18 Duct 19 Fan inlet 20 Grill 21 Grill opening 22 Temperature detector 23 Controller 24 Partition plate

Claims (3)

A burner that burns gas, a combustion chamber that mixes exhaust gas generated by combustion and air taken in from the outside, a convection fan for sending out hot air, a hot air outlet that blows out hot air, and a combustion chamber Consists of a warm air heating unit composed of a convection filter that takes in air, and an air cleaning unit that is above the warm air heating unit and separated by a partition plate, and the air cleaning unit removes dust and odors A filter for air intake, an air cleaning fan that takes in outside air and blows air, a duct that connects the fan suction port of the air cleaning fan and the filter, a grill that covers and removes the filter, and that does not go through the filter An air passage communicating with the opening of the grill, a temperature detector provided in the air passage and in the vicinity of the opening, and a control device that stops combustion when a predetermined temperature is reached. Warm air heating system with air cleaner. The hot air heating apparatus with an air cleaner according to claim 1, wherein the air cleaning fan is slightly rotated during operation of the hot air heating section. The hot air heating apparatus with an air cleaner according to claim 1, wherein a part of the partition plate on the side opposite to the hot air outlet side is cut out, and a grill and an intake portion for combustion air are communicated between the duct and the partition plate. .

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