JPH0114847Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention forms a heating air flow and a lower temperature air flow that passes through the upper layer in two layers, allowing room heating to be carried out over a wide area. The present invention relates to a warm air heater that can be heated uniformly.

[Prior art]

Figure 1 shows a conventional hot air heater disclosed in Japanese Patent Application Laid-open No. 52-152644. In the figure, 1 is the casing of the floor-standing hot air heater, and 2 is the indoor air heater provided on the top surface of this casing. 3 is a blower provided in the housing 1,
4 is a heat exchanger installed directly below the heat exchanger, 5 is a lower outlet for blowing out the heated air that has passed through the heat exchanger 4, and 6
7 is an upper air outlet which blows the sucked air into the room without passing through the heat exchanger 4, and 7 is a floor.

In the conventional warm air heater, as described above, by operating the blower 3 and the heat exchanger 4, a part of the indoor air sucked in through the suction port 2 is blown out into the room from the upper air outlet 6 without being heated. The other intake air passes through the heat exchanger 4, becomes high temperature air, and is blown out from the lower outlet 5.

In this way, the relatively low temperature airflow blown out from the upper air outlet 6 suppresses the rise of the high temperature air flow blown out from the lower air outlet 5, and allows the high temperature air to reach a long distance along the floor surface. However, this has the disadvantage that two air currents with large temperature differences are created in the room, causing discomfort.

[Summary of the idea]

This invention solves the above-mentioned drawbacks of the conventional ones by separating the air flow blown out from the upper air outlet and the heating air flow blown out from the lower air outlet into a highly thermally conductive partition in a housing that includes a combustor. The temperature difference between the two sides is reduced by exchanging heat through the plate, and the flow rate of the low-temperature air flow blown out from the upper outlet by a single blower is changed to the heating air flow blown out from the lower outlet. The blowing air volume ratio from the blower is adjusted according to the desired heating environment in the room at that time so that the flow velocity of the blowing air flow is maintained at least the same, and the high-temperature air reaches a long distance, and the temperature of both is maintained at least the same. This allows a comfortable heating environment with less discomfort due to differences to be provided at all times.

[Example of idea]

An embodiment of this invention will be described below with reference to FIGS. 2 and 3. That is, in the figure, 1 is the same casing as above, 2 is the indoor air intake port provided on the back of the casing 1, and 3 is a single propeller-shaped blower for indoor air intake provided on the back of the casing 1. , 7 is the floor,
Reference numeral 8 denotes a lower air outlet provided on the front surface of the housing 1 to face the blower, and 9 represents an upper air outlet provided on the front surface of the case 1 and above the lower air outlet 8. The positions in relation to the blow-off ports are all arranged so that the blow-out air flow is blown out diagonally downward. Reference numeral 10 has its tip edge close to the central boss portion of the blower 3, and converts the suction airflow by this blower into a low-temperature airflow directed toward the upper outlet 9 and a high-temperature heating airflow directed toward the lower outlet 8. A highly thermally conductive partition plate 11 partitions the inside of the casing 1, 11 is a ventilation duct formed in the upper part of the casing 1 by the partition plate 10, and 12 is a ventilation duct formed inside the casing 1 by the partition plate 10. 13 is an oil combustor provided in the center of the heating chamber 12, and 14 is a blower for supplying combustion air.

FIG. 2 shows the top edge of the partition plate 10 connected to the blower 3.
is deviated from the central boss portion toward the blades, thereby suppressing the amount of air blown into the air duct 11 to a small level. When heating operation is started in this state, the room air taken in by the air blower 14 is Combustion starts in the combustor 13, and the air in the heating chamber 12 is heated by this combustion. Then blower 3
Indoor air sucked in from the suction port 2 of the housing 1 by the rotation of is heated and decelerated by the combustor 13, and is blown out diagonally forward and downward from the lower air outlet 8 toward the floor 7 as high-temperature wind at low speed.

On the other hand, a part of the indoor air sucked in from the suction port 2 is slightly heated through the highly thermally conductive partition plate 10 when passing through the air duct 11, and becomes low-temperature, high-speed warm air from the upper air outlet 9 in the same manner. It blows out diagonally forward and downward toward the floor 7.

At this time, the air volume from the upper air outlet 9 is as follows:
The partition plate 10 is configured so that the amount of air blown from the lower air outlet 8 is 20% (minimum limit). Since the rise of the low-speed, high-temperature heating airflow blown out from the lower air outlet 8 is suppressed, the high-temperature air can reach a long distance, and the upper and lower airflows are controlled by the high thermal conductivity partition plate inside the housing 1. Since heat is exchanged through 10,
When the air is discharged indoors, the temperature difference between the two is reduced, and a comfortable heating environment with less discomfort due to this temperature difference is obtained.

Furthermore, in FIG. 3, the tip edge of the partition plate 10 is deviated from the blade side of the blower 3 toward the central boss, so that the air volume from the upper air outlet 9 is increased to 20% or more of the air volume from the lower air outlet 8. This is a case where the partition plate 10 is moved and adjusted from the chain line position shown in the diagram to the solid line position. In this case, the low temperature blown air flow from the upper layer can reach further, making it possible to heat a wider range. . Note that the air volume from the upper air outlet 9 is 20% of the air volume from the lower air outlet 8.
In the following cases, local heating occurs only at the feet, which is inconvenient.

In the above embodiment, a floor-standing type was explained, but a wall-mounted type or a window-hung type may also be used, and the amount of air blown from the upper air outlet can be adjusted by moving the tip edge of the partition plate up and down. Although the case has been described, it goes without saying that this may be fixed and the opposing blower may be moved in the vertical direction instead.

[Effect of idea]

As described above, the hot air heater of this invention uses a low-temperature, high-speed airflow in the upper layer to a minimum of 20% of the airflow volume of the low-speed heating airflow in the lower layer.
Since it is configured to be adjustable so that it is maintained above that level, it can accurately respond to changes in the required indoor heating range, and the temperature difference between the upper and lower airflows is also reduced. A comfortable heating environment with less discomfort caused by this temperature difference can be easily obtained.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing a conventional floor-standing hot air heater, Figures 2 and 3 are cross-sectional views showing an embodiment of the hot air heater of this invention, and Figure 2 is a cross-sectional view showing an embodiment of the hot air heater of this invention. FIG. 3 shows the narrowest area heating condition, and FIG. 3 shows the wide area heating condition. In the figure, 1 is the housing, 3
1 is a blower, 10 is a highly thermally conductive partition plate, 11 is a ventilation duct, 12 is a heating chamber, and 13 is a combustor.
In other figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a device in which a heating air flow and a lower temperature air flow are formed in upper and lower layers so as to suppress the rise of this air flow in the upper layer. Inside the housing housing the combustor, there is a heating chamber at the bottom through which the heating airflow from the internal combustor passes through, through a highly thermally conductive partition plate, and an air duct at the top through which the airflow at a lower temperature is passed. In addition, the partition plate and a single blower for indoor air suction having a central boss portion close to the tip edge of the partition plate are vertically defined, and the vertical relationship between the tip edge of the partition plate and the blower is defined. A hot air heater characterized in that the air volume ratio blown into the air duct and the lower heating chamber can be adjusted by changing the positional relationship. (2) The hot air heater according to claim 1 of the utility model registration claim, wherein the amount of air blown into the upper air duct is maintained at a minimum of 20% of the amount of air blown into the lower heating chamber.