JPS60247A - Room cooling device - Google Patents

Abstract

PURPOSE:To improve comfortable property and energy-saving property upon cooling a room by a method wherein a set room temperature is corrected by providing a condition detecting sensor, detecting the condition of an air direction setting means, or an air direction sensor, sensing the direction of air. CONSTITUTION:An air direction control blade 7, as the air direction setting means, is provided at the blow-off port 6 of the main frame 3 of the room cooling device and a limit switch 8 is provided as the condition detecting sensor for the blade 7 while a correcting circuit 9, correcting the set room temperature based on the condition of the switch 8, is accommodated in a controller 10. A thermistor 12, detecting the room temperature, is provided in a suction port while a circuit, controlling a compressor 14 among outdoor machines 13 based on the output of the thermistor 12 and the set room temperature, is provided in the controller 10. When room cooling operation is begun, the switch 8 detects the condition of the blade 7 and the set room temperature is corrected by the correcting circuit 9, whereby, the temperature detected by the thermistor 12 is controlled.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a cooling device.

The structure of the prior trial case and its problems Conventionally, this type of air conditioner usually allows the wind direction to be set in the vertical direction, but it detects the room temperature and automatically adjusts the room temperature to the set temperature by turning on and off the compressor, etc. In the equipment to be controlled, this difference in air direction setting causes a difference in the actual room temperature even if the set temperature is the same. This is caused by the temperature distribution in the room, and will be explained using FIGS. 1 and 2. In FIG. 1, a cooling device 2 whose wind direction can be set is installed in a room 1, and the wind direction is set horizontally. In this case, the indoor temperature distribution will be approximately uniform. A room temperature sensor (not shown) such as a thermistor built into the cooling device 2 detects the temperature near the ceiling, but since the temperature distribution is uniform, the temperature is almost the same as the average temperature in the room. For example, 25℃
If set to , every part of the room will be controlled to approximately 25 degrees Celsius. On the other hand, if the wind direction is set to F, the low-temperature blown air will stay near the floor, resulting in poor indoor temperature distribution, as shown in FIG. However, the room temperature detection part is
Because the temperature is located in the middle of the room, only the temperature near the ceiling is controlled to the set temperature, and most other areas are controlled lower than that.

For example, as shown in FIG. 2, even if the temperature is set to 25°C, the temperature near the floor surface becomes 20°C.

Therefore, conventional cooling systems have the disadvantage that even if the set temperature is set to the same value, the room temperature in the living area where the occupants actually live can vary greatly depending on the setting of the wind direction. When set, K had the problem of discomfort due to excessive cooling in room F and an increase in energy consumption due to this.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and aims to improve comfort and energy saving during cooling.

Structure of the Invention In order to achieve this object, the present invention provides a cooling device that detects the room temperature using a temperature sensor such as a thermistor provided inside the main body and automatically controls the room temperature to a preset room temperature. A wind direction setting means, a state detection sensor for detecting the state of the wind direction setting means or a wind direction sensor for detecting the wind direction, and a set room temperature correction circuit for correcting the set room temperature based on the output of the state detection sensor or the wind direction sensor. It is something that

With this configuration, the direction of the blowing air is detected t~, and the set room temperature set in advance by the resident or the like is corrected based on it. For example, if the wind direction is horizontal, the set room temperature is used as is, and if it is in the F direction, the set room temperature is corrected by increasing it by a certain temperature.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will now be described with reference to FIGS. 3 to 7.

In FIG. 3, reference numeral 3 denotes a cooling device main body, which includes a heat exchanger 4, a blower 5, etc. inside. The air outlet 6 is provided with a wind direction control blade 7 as a wind direction setting means, and further provided with a limit switch 8 as a state detection sensor of the wind direction control blade 7. Further, a set room temperature correction circuit 9 for correcting the set room temperature according to the state of the limit switch 8 is built into the controller 1o. In addition, the suction port 11 has a thermistor 12 that detects the room temperature, and a control circuit that controls the compressor 14 in the outdoor unit 13 based on the direction of the thermistor 12 and the set room temperature preset by the occupant. It is located in 10.

FIG. 4 shows a block diagram of the set room temperature correction circuit 9, in which the relay 15 is activated by turning on and off the limit switch 80.
, a correction signal generation block 16 that generates a correction signal for the set room temperature based on the output of the relay 15.

When cooling operation starts in the configuration, thermistor 1
Based on the output of 2, the room temperature is controlled to a preset room temperature set by the occupant.At this time, as shown in FIG. 5, the limit switch 8 detects the state of the wind direction control blade 7, A correction circuit 9 corrects the set room temperature.

In other words, when the wind direction control blade 7 is in the F direction (solid line), the limit is reached.

When the switch 8 is turned on, the relay 13 is activated and sends a signal to the correction signal generation block 14 to lower the set room temperature by a certain temperature. Conversely, if the wind direction is horizontal (
(dashed line), the limit switch 8 is not activated and the room temperature remains at the set temperature set by the occupant. The state of the indoor temperature when horizontal is the same as that shown in Fig. 1 for the conventional example, but the F simultaneous
As shown in the figure, for example, the set room temperature of 25°C set by the resident is corrected by +3°C, and the temperature near the ceiling,
In other words, the temperature detected by the thermistor 12 is controlled to 28°C. As a result, the overall temperature is +3℃ compared to the conventional one.
As a result, the average temperature in the living area becomes around 25℃, which approaches the room temperature set by the occupant in advance.Therefore, there is no discomfort caused by excessive cooling near the floor surface N°, and wasteful energy consumption is reduced. has.

In this embodiment, the limit switch 8 is used as a method of detecting the wind direction, but there is also a means of directly detecting the direction of the blowing air flow using a pressure sensor or the like.

Next, another embodiment of the present invention will be briefly described using FIG. 7. This is to change the correction amount of the set room temperature according to the air volume, and is shown by the relationship shown in FIG. In other words, the larger the air volume is, the smaller the correction amount is, and as the air volume increases, the correction amount is increased. As a result, the indoor living area can always be controlled to a preset room temperature regardless of the wind direction and air volume settings.

Effects of the Invention (1) In a cooling device that detects the room temperature using a temperature sensor such as a thermistor provided inside the main body and automatically controls the room temperature to a preset room temperature, the air conditioner includes a wind direction setting means and the wind direction setting means. The configuration includes a state detection sensor that detects the state of the air flow or a wind direction sensor that detects the wind direction, and a set room temperature correction circuit that corrects the set room temperature based on the output of the state detection sensor or the wind direction sensor. If it is detected and the temperature is facing F, the temperature in the living area caused by the temperature distribution is corrected to a higher room temperature set by the occupant.
This has the effect of preventing excessive heating and reducing the difference between the set room temperature and the actual room temperature in the living area.

(2) Since the difference between the set room temperature set by the resident and the actual room temperature in the living area is small, the discomfort caused by overcooling can be eliminated, and unnecessary energy consumption is eliminated, resulting in a large energy saving effect.

[Brief explanation of drawings]

Figure 1 is a diagram showing the indoor temperature distribution during horizontal air blowing in a conventional cooling system, Figure 2 is a diagram showing the indoor temperature distribution during horizontal air blowing, and Figure 3 is a diagram showing an embodiment of the present invention. Figure 4 is a cross-sectional view of the cooling device, Figure 4 is a set room temperature correction circuit diagram, Figure 5 is a detailed cross-sectional view of the air outlet, Figure 6 is a diagram showing the indoor temperature distribution during F air flow, Figure 7 is It is a diagram showing the relationship between the air volume and the correction amount of the set room temperature in another embodiment. 3... Cooling device main body, 4... Heat exchanger, 5...・Blower, 6...Air outlet, 7・
...Wind direction control blade, 8...Limit switch, 9...Setting room temperature control circuit, 12...
・Thermistor, 14... Compressor. Name of agent: Patent attorney Toshio Nakao and 1 other person M1
Figure 2 Figure 4 Figure 7 Figure 5 Figure 6 Figure 7 Capacity -

Claims (2)

[Claims] (1) In a cooling device that detects the room temperature with a temperature sensor such as a thermistor installed inside the main body and automatically controls the room temperature to a preset room temperature, the state of the air direction setting means and the air direction setting means njj An air conditioner comprising: a state detection sensor that detects wind direction or a wind direction sensor that detects wind direction; and a set room temperature correction circuit that corrects a set room temperature based on the output of the state sensor or wind direction sensor. (2) The cooling device according to claim 1, wherein the set room temperature correction circuit changes the amount of correction of the set room temperature in accordance with the strength of the blowout air volume.