JPH0140249B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a hot air heater that improves comfort in an indoor environment.

[Prior art]

Conventionally, this type of apparatus has been shown in FIG. 1, as described in Japanese Patent Application Laid-Open No. 152,644/1983. In this figure, 1 is the housing of the floor-standing hot air heater, 2 is the suction port provided on the top surface of this housing 1, 3 is the blower installed inside the housing, and 4 is also inside the housing 1. A heat exchanger provided, 5 is a first outlet that blows out air that does not pass through the heat exchanger 4, 6 is a second outlet that blows out air that has passed through the heat exchanger provided at the bottom, 7 is the floor.

In the hot air heater configured as above, the suction port 2 is operated by the blower 3 and the heat exchanger 4.
A part of the indoor air that has been sucked in is directly transferred to the
The other air passes through the heat exchanger 4 and becomes high-temperature air, which is then blown into the room from the second outlet 6. Therefore, the indoor air blown from the first air outlet 5 suppresses the high temperature air blown from the second air outlet 6, allowing the high temperature air to reach a long distance along the floor surface. However, there were disadvantages such as a feeling of draft caused by the temperature difference between the room temperature air and the high temperature air, which made users feel uncomfortable.

[Summary of the invention]

This invention was made to eliminate the drawbacks of the conventional ones as described above, and includes a second outlet that blows out high-temperature air that has passed through a heating section such as a combustor or a heat exchanger toward the floor surface; A first air outlet that blows out weakly warm air whose temperature is higher than the indoor air temperature and lower than the high temperature air is provided above the second air outlet, and air is blown from each air outlet. The blowing angle formed by the blowing direction and the horizontal line is made larger at the first air outlet than at the second air outlet,
By blowing out the mildly warm air along the upper side of the high temperature air, the rise of the high temperature air is suppressed and the high temperature air reaches a long distance along the floor surface, thereby reducing the difference in temperature between the top and bottom of the room and reducing the draft feeling. This provides a hot air heater with increased comfort.

[Embodiments of the invention]

The details of this invention will be explained below according to the illustrated embodiments. FIG. 2 is a sectional view of a floor-standing hot air heater showing an embodiment of the present invention, in which 1 is a housing, 2 is an inlet provided on the back of the housing 1, and 3 is a rear surface inside the housing. A blower 7 is installed on the floor, and these are similar to the conventional device shown in FIG. 8
is a second air outlet provided on the front surface of the housing 1,
Reference numeral 9 denotes a first air outlet provided above the second air outlet on the front surface of the casing 1, and both of these air outlets are structured to blow out air obliquely downward. 10 is an air flow to the second air outlet 8;
A partition plate 11 is a relatively good thermal conductor that separates the air flow to the first air outlet 9, and 11 indicates the partition plate 10 and the housing 1.
12 is a heating chamber formed in the lower part of the air passage 11 by the partition plate 10 and the housing 1; 13 is an oil or gas provided in the heating chamber 12; 14 is a combustion blower for combustion. In addition,
The blowout angle A made by the blowing direction of the low-temperature air blown out from the first blow-off port 9 and the horizontal line is the blow-out angle A made by the blowing direction of the high-temperature air blown out from the second blow-off port 8 and the horizontal line. The angle of each louver 16, 15 is determined to be larger than B. In this embodiment, as shown in FIG. 3, the blowout angle A is 30° and the blowout angle B is 20°, which are increased by 10°.

In the floor-standing hot air heater configured as described above, when operation is started, gas or oil is combusted in the combustion section 13 by indoor air taken in by the combustion blower 14. Then, the heating chamber 12 is heated by the combustion in the combustion section 13. Also, wind path 1
1 is also heated through the partition plate 10, which is a good thermal conductor. A portion of the indoor air sucked in through the suction port 2 provided on the back surface of the housing 1 is turned into high-temperature air by the combustion section 13 and is blown out diagonally downward toward the floor 7 through the second blow-off port 8. The other room air passes through the air passage 11 heated by the combustion part 13 through the partition plate 10 with relatively good heat conduction,
The air becomes slightly warmed and is blown diagonally downward toward the floor 7 from the first air outlet 9, so that the rising high temperature wind blown out from the second air outlet 8 is blown out from the first air outlet 9. The high-temperature wind can reach far along the floor surface by suppressing it with slightly warm, slightly warm air.

FIG. 4 shows the measurement results of the indoor temperature distribution characteristic a according to this embodiment and the indoor temperature distribution characteristic b using the conventional device.Compared to the conventional device b, the temperature near the floor surface has increased, Since the temperature in the upper part of the room decreases, the temperature difference between the upper and lower parts of the room becomes very small.

If the difference between the blow-out angle A of the first blow-off port 9 and the blow-off angle B from the second blow-off port 8 is zero, that is, the same, the difference in temperature between the top and bottom inside the room will not be improved much; The air outlet angle A of the air outlet 9 is the second air outlet 8
If the blowing angle is 25° or more larger than the blowing angle B, the difference in temperature between the top and bottom inside the room will be improved, but the floor surface temperature will increase, leading to deterioration of the flooring material. As a result of various experiments, a range of 5 to 25 degrees was found to be appropriate for this blow-off angle difference A-B.

Furthermore, since the air blown out from the first air outlet 9 is slightly warmed, the occupant feels less drafty due to the warm air blown out from the second and first air outlets 8 and 9.

In addition, although the said Example demonstrated the case where the combustion part was arrange|positioned in the heating part, a heat exchanger may be used and the effect similar to the said Example is produced.

In addition, although the partition plate 10 has been described as having relatively good heat conduction, it is made of a heat insulating material and has openings in a portion so that the high temperature air from the heating chamber 12 is sucked into the air passage 11. It may be.

Furthermore, in the above embodiment, a floor-standing type was shown, but a wall-mounted type or a window-mounted type may also be used.Also, although the case where the blower 3 is placed on the back inside the housing 1 has been described, it is placed on the lower part inside the housing 1. Even if they are arranged, the same effects as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, at the upper part of the second outlet which blows out high-temperature air toward the front and downward, there is a damper that is higher than the indoor air temperature and lower than the high-temperature air blown out from the second outlet. In addition to providing a first outlet that also blows out warm air toward the front and downward, this first
Since the blowing angle A of the mildly warm air blown from the above-mentioned outlet is made larger than the blowing angle B of the high temperature air blown from the second blower outlet, the rise of the hot air is suppressed by the weakly warm air, and the high temperature air is can reach a long distance along the floor surface, greatly reducing the temperature difference between the top and bottom of the room.Furthermore, the temperature difference between high temperature air and low temperature air is small, creating a highly comfortable living environment with relatively little draft feeling. It is something that can be obtained.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a conventional floor-standing hot air heater and its blowing state, Fig. 2 is a sectional view of a floor-standing hot air heater showing an embodiment of the present invention, and Fig. 3 is a sectional view showing the hot air blowing state. FIG. 4 is a partial enlarged sectional view of the section, and is a characteristic diagram of the vertical temperature distribution inside the room. In the figure, 1 is the housing, 2 is the inlet, 3 is the blower, 7 is the floor, 8 is the second outlet, 9 is the first outlet, 10 is the partition plate, 11 is the air path, 12 is the heating room,
13 is a heating section, 14 is a combustion blower, 15, 16
is a louver. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] 1. A second air outlet provided at the lower front of the casing and blows out heated high-temperature air forward and downward; A first outlet that blows out weakly warm air whose temperature is higher than the indoor air temperature and lower than the high temperature air blown out from the second outlet toward the front and downward; a suction port; a heating unit provided within the housing to heat the intake air;
and a blower that generates an air flow that blows out heated air from a second outlet. A hot air heater characterized by being larger than the outlet. 2. The hot air heater according to claim 1, wherein the blowing angle of the first blowing outlet is 5 to 25 degrees larger than the blowing angle of the second blowing outlet.