JP3757350B2 - Hot air heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot air heater used for an indoor unit or the like of a hot water heater.
[0002]
[Prior art]
In a conventional hot water heater, a hot air heater equipped with a heat exchanger and a line flow fan is arranged indoors, a heat source machine of a hot water boiler is arranged outside, and piping for circulating hot water as a heat moving body Are connected through the wall.
FIG. 3 is a cross-sectional view showing a hot air heater used in an indoor unit or the like of a conventional hot water heater. In the figure, 1 is a main body, 2 is provided on the back surface of the main body 1, and a rear upper intake for taking in cold air, 3 is a heat exchanger, 4 is a line flow fan provided at the lower part of the heat exchanger 3, This is an intake air passage connecting the rear upper intake 3 and the line flow fan 4. 6 is a hot air outlet provided at the lower front of the main body 1, 7 is a rear partition plate provided at the rear part inside the main body 1, 8 is a blowout air passage connecting the hot air outlet 6 and the line flow fan 7, 9 Is a wall portion for projecting on the inside of the front surface of the main body 1 and forming the intake air passage 5 and the blowout air passage 8 as a partition air passage.
[0003]
Next, the operation will be described. When the line flow fan 4 is driven and rotates in the direction A, air is introduced from the intake port 2 and is heated by the heat exchanger 3 to become hot air, and is heated via the intake air passage 5 and the blowout air passage 8. Hot air is blown into the room from the air outlet 6.
[0004]
[Problems to be solved by the invention]
Since the conventional warm air heater is configured as described above, the warm air is blown out along the floor surface from the warm air outlet at the lower part of the main body to make the feet warm and comfortable.
However, since the warm air rose before reaching far, the comfort of the feet was not sufficient. In addition, near the hot air heater, the temperature of the floor surface becomes high, which may cause heat effects such as deformation.
[0005]
The present invention has been made to solve the above-mentioned problems, and it is possible to improve the comfort of the feet by allowing the hot air to reach far away, and to eliminate the influence of the hot air on the floor surface. The purpose is to obtain a hot air heater that can be used.
[0006]
[Means for Solving the Problems]
The hot air heater according to the present invention includes an intake air passage connecting a rear upper air intake provided at the upper rear surface of the main body and a blower fan provided below the rear upper air intake, In the hot air heater comprising: a heat exchanger provided in the intake air passage; and a blowout air passage connecting the hot air outlet provided in the lower front portion of the main body and the blower fan. A front upper air intake provided on the front surface of the main body corresponding to the air passage, and an upper portion provided on the front surface of the main body corresponding to the blowing air passage and positioned above the hot air outlet. The front upper air has a low-temperature air outlet, a rear lower air inlet provided at the lower rear of the main body, and a lower low-temperature air outlet provided below the hot air outlet. The upper low-temperature wind is the low-temperature air taken from the intake port. While the blown out from the outlet, they are attracted to the warm air blown from the warm air blowing port, that was blown out from the lower cold air outlet of the air taken from the intake bottom air the rear surface as cold wind It is.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a hot air heater used for an indoor unit or the like of a hot water heater according to Embodiment 1 of the present invention.
In the figure, 1 is a main body, 2 is provided on the back surface of the main body 1, and a rear upper air intake port for taking in cold air , 3 is a heat exchanger, 4 is a line flow fan provided at the lower part of the heat exchanger 3, Is an intake air passage connecting the rear upper air intake 2 and the line flow fan 4. 6 is a hot air outlet provided at the lower front of the main body 1, 7 is a wall for forming an air passage provided at the rear part inside the main body 1, and 8 is an outlet connecting the hot air outlet 6 and the line flow fan 4. An air passage 9 is a wall portion for forming an air passage that projects from the inside of the front surface of the main body 1 and separates the intake air passage 5 and the blowout air passage 8.
[0009]
Reference numeral 10 denotes a front upper air intake provided on the front surface of the main body 1 above the air passage forming wall portion 9, and 11 denotes an upper low temperature provided between the air passage forming wall portion 9 and the hot air outlet 6. It is a wind outlet. Reference numeral 13 denotes an upper wall for forming an upper low-temperature air passage, and reference numeral 14 denotes a lower wall for forming an upper low-temperature air passage. An upper low-temperature air passage 12 is formed between the front upper air inlet 10 and the upper low-temperature air outlet 11. To do.
[0010]
Next, the operation will be described. When the line flow fan 4 is driven and rotates in the direction A, air is introduced from the intake port 2 and is heated by the heat exchanger 3 to become hot air, which passes through the intake air passage 5 and the blowout air passage 8 to reach the hot air outlet. 6 warm air is blown into the room. Further, air (cold wind) is taken from the front upper air intake 10 by the line flow fan 4, and the air flows between the wall portion 9 for forming the air passage and the upper wall 13 for forming the upper low temperature air passage, flows along the curved surface of the blade of the line flow fan 4 flows between the wall 9 and lower wall 13 for the upper cold Kazefuro formation for air path forming, blown from the top cold air outlet 11 as a low-temperature air. And it suppresses that the warm air which blown off from the warm air blower outlet 6 goes up with this low temperature wind.
[0011]
Here, the air (cold wind) taken from the front upper air intake 10 passes through the upper low temperature air passage 12 where the hot air from the intake air passage 5 flows in the upper rear part of the line flow fan 4. Although it flows to the front upper part of the flow line flow fan 4, the warm air and the low temperature air are not mixed by the wind pressure distribution inside the line flow fan 4, and are blown out from the respective outlets.
[0012]
As described above, the warm air blown from the warm air outlet is prevented from rising by the low temperature air, and the comfort of the feet can be improved by reaching the warm air far away.
[0013]
Embodiment 2. FIG.
A second embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a cross-sectional view of a hot air heater used for an indoor unit or the like of a hot water heater according to Embodiment 2 of the present invention. In the figure, the same or corresponding parts as in FIG. 1 shown in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
15 inlet face lower air after taking in cool air provided on the surface lower after the body 1, the lower cold air outlet is disposed below the mouth 6 out air blowing temperature 16, 17 inlet partition plate 18 is collected by the rear lower air It is a lower low temperature wind passage connecting the inlet 15 and the lower low temperature wind outlet 16.
[0014]
Next, the operation will be described. When the line flow fan 4 is driven, air is introduced from the intake port 2, heated by the heat exchanger 3 to become warm air, passes through the intake air passage 5 and the outlet air passage 8, and is heated from the hot air outlet 6. Wind is blown into the room.
The attraction acting on the lower cold air blowing near the exit 16 of the bottom of the blow-out warm air by warm air blowing out mouth 6 is generated, it is introduced from the inlet 15 preparative rear lower air room air, the lower cold air outlet through the lower low-temperature air duct 18 Low-temperature air is blown out from 16, and a cold air layer is formed under the hot air layer.
[0015]
Further, the front air (cold air) from the upper air inlet 10 is low temperature air taken in flows through the air path 12, blown from the top cold air outlet 11 as a low-temperature air. And it suppresses that the warm air which blown off from the warm air blower outlet 6 goes up with this low temperature wind.
[0016]
As described above, it is possible to improve the comfort of the feet by allowing hot air to reach far away, and a cold air layer is formed under the flow of hot air to prevent the heat effect on the floor surface. it can.
[0017]
【The invention's effect】
As described above, according to the present invention, the intake air passage connecting the rear upper air intake provided at the upper rear surface of the main body and the blower fan provided below the rear upper air intake, and In the hot air heater comprising: a heat exchanger provided in the intake air passage; and a blowout air passage connecting the hot air outlet provided in the lower front portion of the main body and the blower fan. A front upper air inlet provided on the front surface of the main body corresponding to the air inlet passage, and a front air inlet corresponding to the outlet air passage and positioned above the hot air outlet. An upper low-temperature air outlet, and the air taken in from the front upper air intake through the blower fan is blown out from the upper low-temperature air outlet as a low-temperature air, so that the hot air reaches far Can improve the comfort of the feet
[0018]
Also has a inlet face lower air after provided on the surface lower after the body, and a lower cold air outlet provided at the bottom of the warm air blowing exit, it is attracted to the warm air blown from the warm air blowing out mouth Since the air taken in from the rear lower air intake port is blown out from the lower low temperature air outlet as the low temperature air, the thermal effect on the floor surface by the hot air can be eliminated.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a hot air heater showing Embodiment 1 of the present invention.
FIG. 2 is a sectional view of a hot air heater showing Embodiment 2 of the present invention.
FIG. 3 is a cross-sectional view of a conventional hot air heater.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body, 2 Rear upper air inlet, 3 Heat exchanger, 4 Line flow fan, 5 Intake air path, 6 Hot air outlet, 8 Outlet air path, 9 Wall part for air path formation, 10 Front upper air intake Inlet, 11 Upper low temperature air outlet, 12 Upper low temperature air passage, 15 Rear lower air intake, 16 Lower low temperature air outlet, 18 Lower low temperature air passage.

Claims (1)

An intake air passage connecting the rear upper air intake provided at the upper rear surface of the main body and a blower fan provided below the rear upper air intake, and heat provided in the intake air passage In a hot air heater comprising an exchanger and a blowout air passage connecting the hot air outlet provided at the lower front portion of the main body and the blower fan,
A front upper air intake provided on the front surface of the main body corresponding to the intake air passage;
An upper low temperature air outlet that corresponds to the air outlet and is located above the hot air outlet and provided on the front surface of the main body,
A rear lower air intake provided at the lower rear of the main body,
A lower low temperature air outlet provided below the hot air outlet,
The air taken in from the front upper air intake through the blower fan is blown out from the upper low temperature air outlet as a low temperature wind, and is attracted to the hot air blown out from the hot air outlet, and the rear surface A hot air heater characterized in that air taken in from a lower air intake is blown out from the lower low temperature air outlet as low temperature air .

Images