JPS6252222B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to hot air heaters such as clean heaters (registered trademark of Mitsubishi Electric), fan heaters, and room air conditioners with heating functions.

FIG. 1 is an explanatory diagram showing the operation of a conventional hot air heater. In the figure, 1 is the housing of the floor-standing hot air heater, 2
is a hot air outlet provided at the lower front of the housing 1; 3 is an indoor air intake port provided on the back side of the housing 1 and communicates with the outlet 2; and 4 is between the outlet 2 and the intake port 3. A heat exchanger 5, which is a heat source for heating, is a hot air blower, which warms the indoor air sucked in from the suction port 3 by the heat exchanger 4, and blows it out toward the front and lower part of the housing 1. be. Reference numeral 6 is a temperature-sensing part of a thermostat (not shown) that controls the start and stop of the blower 5 according to the indoor temperature, and is provided near the suction port 3. Reference numeral 7 is the floor of the room where the heater is installed; 8 is the ceiling.

In the above-described configuration, when the power is turned on when the indoor temperature is lower than the set temperature for starting heating operation, the heat exchanger 4 and the blower 5 start operating, and the air blows from the air outlet 2 to the floor 7 as shown by the arrow. Warm air is blown out along the path to heat the room. When the temperature sensor 6 detects that the indoor temperature has gradually increased and reached the set temperature for stopping the heating operation, the thermostat is activated, the blower 5 is stopped, and the heating operation is no longer performed. As a result, the indoor temperature gradually decreases, and when it reaches the set temperature for starting the heating operation, the thermostat operates, the blower 5 starts operating again, and the heating operation is resumed. While repeating these operations, the room is heated to a temperature within the range of both set temperatures.

However, as shown by the arrow in the figure, the warm air tends to rise upwards in the room, resulting in the drawback that the living area near the floor 7 is cold and the non-living area near the ceiling 8 is hot. As a countermeasure to improve this drawback, there is a method of deepening the blowing angle of hot air and blowing it out toward the air outlet 2, but in this case, a new drawback arises in that the flooring material is deteriorated. Furthermore, if the blowing angle is made shallower to increase the speed of the hot air, the temperature distribution can be improved, but in this case, there is a drawback that the high-speed hot air comes into contact with the human body, causing discomfort.

This invention aims to improve the above-mentioned drawbacks from a completely different perspective from the above-mentioned countermeasures.In addition to the configuration of the above-mentioned conventional device, it also includes a non-warm air blower that causes a flow of non-warm air in the upper part of the room. By newly installing a thermostat that controls the start and stop of the warm air blower, the hot air blower and the non-hot air blower are started and stopped in synchronization. This project proposes an efficient hot air heater that prevents hot air from floating due to the flow, provides good indoor temperature distribution, and is highly efficient.

FIG. 2 is an explanatory diagram showing an embodiment of the present invention.
1 to 8 indicate the same or corresponding parts as in the previous figure. In the figure, 9 is an upper casing provided on the top of casing 1;
11 is a non-warm air indoor air inlet provided on the back surface of the housing 9 and communicates with the air outlet 10; 12 is an air outlet. A non-warm air blower provided between the air outlet 9 and the suction port 10 causes a flow of non-warm air from the air outlet 9 to the upper part of the room. Note that 16 is a wall located at a position facing the hot air heater.

FIG. 3 is a simplified circuit diagram showing the control system of this embodiment. In the figure, 13 is a commercial power source, 14 is the thermostat, and a power source
Connected to 3. Further, the blowers 5 and 12 are connected in parallel to the load side contact 14a of the thermostat 14.

The hot air blower 5 of the hot air heater configured as described above is controlled to start and stop by the thermostat 14 in accordance with the room temperature, as in the conventional device. Only contact 14a
Since the blower 12 is connected in parallel with the blower 5, the blower 12 is operated in synchronization with the blower 5 during heating operation. The arrows in FIG. 2 indicate the air flow at that time, with warm air flowing along the floor 7 and non-hot air flowing along the ceiling 8.
The flow of non-warm air tends to descend not only when it hits the wall 16, but also when it is in the middle of the arrow, so the non-warm air wraps around the warm air, preventing the hot air from rising, and reducing the wind speed. Even slow warm air can reach a long distance along the floor 7. In addition, since the descending non-warm air is mixed with the rising warm air, combined with the above effect, the human body hardly feels the wind and the temperature distribution of the indoor air is made extremely uniform. Can be done.

FIG. 4 shows this embodiment. Curve A in the figure shows the temperature distribution according to the conventional device, and curve B shows the temperature distribution according to the embodiment. As can be seen in the figure, in curve B, the residential area is high and the non-residential area is low, indicating that the improvement effect is large.
Therefore, an extremely comfortable indoor heating environment is obtained, and the wasted energy of heating the air in the non-residential area near the ceiling 8 to a high temperature is greatly reduced, thereby improving the efficiency of the hot air heater.

Furthermore, since the blowers 5 and 12 are stopped in synchronization when the heating operation is stopped, the user does not feel the feeling of cold air due to non-warm air.

Note that a single thermostat 14 operates the blowers 5 and 1.
2, the structure is simple, highly reliable, and inexpensive.

Although the above embodiments have been described with respect to a floor-standing hot-air heater, similar effects can be obtained with any type of warm-air heater, such as a wall-mounted type, a window-hung type, or a ceiling-suspended type.

Further, in the above embodiment, the non-warm air outlet 10 is connected to the housing 9.
Although it is installed on the top surface, it is not limited to this location; it can be located at a location where the flow of non-warm air does not intersect with the flow of warm air, and where the flow of non-warm air does not enter the living area too much. good.

Furthermore, in the above embodiment, the indoor air suction port 11 for non-warm air was provided above the suction port 3, but the suction port 1
The lower the position is, the lower the temperature of the suction air is, which is more effective, and it may also be used as the suction port 3 to simplify the work.

As explained above, this invention includes a non-warm air blower that generates a flow of non-warm air in the upper part of the room,
With a simple configuration that uses a single thermostat to start and stop it in synchronization with the hot air blower,
The hot air that moves along the floor and tries to rise is suppressed by the non-warm air that moves along the ceiling, and because only the non-warm air blower is not operated, there is no feeling of cold air, and the interior This has the effect of providing an extremely comfortable indoor heating environment with uniform temperature.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional device, FIG. 2 is an explanatory diagram showing an embodiment of the present invention, FIG. 3 is a simplified circuit diagram thereof, and FIG. 4 is a characteristic diagram. In the figure, 1 is a housing, 2 is a warm air outlet, 3 is an indoor air inlet, 4 is a heating heat source, 5 is a hot air blower, 10 is a non-hot air outlet, 12 is a non-hot air blower, and 14 is a hot air blower. It's a thermostat. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A hot air outlet provided in the housing, a heating heat source that heats the indoor air drawn into the housing, and a hot air outlet that blows out the warm air heated by the heating heat source to the front of the housing from the hot air outlet. Air blower, thermostat that controls the start and stop of the hot air blower depending on the indoor air temperature.
The housing is equipped with a non-hot air outlet provided in the housing, and a non-hot air blower that blows indoor air sucked into the housing upward from the non-hot air outlet, and the thermostat starts and stops the warm air blower. A warm air heater configured to control the start and stop of the non-hot air blower in synchronization with the above.