JPH0158428B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to an air conditioner for a residential basement that controls the air environment of the residential basement to a state suitable for living.

(b) Prior Art In recent years, attempts have been made to utilize basements as living spaces from the perspective of effective use of living space, and these efforts have attracted attention.

By the way, basements usually have poor air quality, so in order to supply this for residential use, it is necessary to control the temperature and humidity to prevent condensation from forming on the floors and walls, and to introduce fresh outside air into the basement. Air conditioning must be perfect. For this reason, air conditioners that control indoor environmental conditions through heating, cooling, and dehumidifying operations and ventilation fans that introduce outside air are essential.

(c) Problems to be solved by the invention However, when using a basement for residential purposes,
Air conditioners are used to control temperature and humidity, but operating this air conditioner requires a large amount of electricity, and temperature and humidity control by the air conditioner must be carried out while monitoring conditions inside and outside the basement. This created an extremely complicated problem.

(d) Means for Solving the Problems The present invention has been made with the above points in mind, and includes a temperature sensor and a humidity sensor that measure the temperature and relative humidity in a residential basement;
A temperature sensor and a humidity sensor that measure the temperature and relative humidity of outside air, a ventilation fan that introduces outside air into the basement, an air conditioner that controls the environmental condition inside the basement, and temperature and humidity sensors inside and outside the basement. and a control unit that calculates each absolute humidity from the numerical values of and controls the operation of the ventilation fan and air conditioner from the measured values input from each sensor.This control unit calculates the absolute humidity from the temperature and relative humidity. In addition to having the function of calculating,
When the relative humidity in the basement is higher than a predetermined value and the indoor absolute humidity is higher than the outdoor absolute humidity, the ventilation fan is operated, and when the indoor absolute humidity is lower than the outdoor absolute humidity, the air conditioner is operated to dehumidify, and the basement is operated. When the temperature inside the room is outside the comfortable temperature range, the air conditioner is operated for cooling or heating.

(e) Effects According to the present invention, environmental conditions in the basement can be easily controlled and wasteful power consumption can be eliminated.

(F) Embodiment Next, the present invention will be explained in detail with reference to the drawings showing one embodiment thereof.

First, the first is a conceptual diagram showing the concept of the apparatus of the present invention for easy understanding.

In the figure, reference numeral 1 denotes a basement located underground 2, and at least a part of the upper part of the basement 1 is exposed above the ground 2. Reference numeral 3, 3 is a ventilation fan installed on the side wall of the basement 1 exposed to the ground surface to introduce fresh outside air into the basement 1, which takes in oxygen necessary for the human body and removes carbon dioxide, cigarette smoke, etc. inside the basement 1. discharge. A heat pump air conditioner 4 is installed on the upper wall of the basement 1 to control the indoor environmental condition, and has cooling, heating, and dehumidifying functions. 5 and 6 are an indoor temperature sensor and an indoor humidity sensor that respectively measure the temperature and relative humidity inside the basement 1; 7 and 8 are an outside air temperature sensor and an outside air sensor that respectively measure the temperature and relative humidity of the outside air of the basement 1; It is a humidity sensor.

Further, FIG. 2 is a block diagram showing the configuration of the apparatus of the present invention, and the same symbols as in FIG. 1 indicate the same parts. In FIG. 2, numeral 9 inputs the measured values of the indoor sensors 5 and 6 and the outdoor sensors 7 and 8, and operates the ventilation fan 3 and air conditioner 4 according to the measured values. This is a control unit consisting of a microcomputer that controls and manages the inside of the basement 1 to maintain a comfortable air environment. The control section 9 is equipped with a function of calculating absolute humidity from the input measured values of each temperature and relative humidity, that is, a function of obtaining absolute humidity by chart comparison on a psychrometric chart.

Next, the operation of the above embodiment will be explained. The control unit 9 includes sensors 5, 6 inside and outside the basement 1,
Measured values from 7 and 8 are constantly input, and the control section 9 operates according to the flowchart of FIG. 3 based on each measured value.

That is, first, it is determined whether the relative humidity in the basement 1 exceeds a predetermined value based on the measured value by the indoor humidity sensor 6. This predetermined value is the basement 1
This is the indoor humidity at which no condensation occurs inside the room, and although it varies depending on the season, it is around 65% in summer, for example.

Then, when the indoor relative humidity is higher than a predetermined value and it is necessary to lower the indoor humidity, the outdoor absolute humidity calculated from the outside air temperature and the outside air relative humidity is compared with the indoor absolute humidity calculated from the indoor temperature and the indoor relative humidity, When the indoor absolute humidity is higher than the outdoor air absolute humidity, the ventilation fan 3 is driven to introduce low-humidity outside air into the basement 1 and exhaust high-humidity indoor air to the outside, thereby controlling the indoor humidity. . When the indoor relative humidity becomes lower than a predetermined value due to this ventilation operation, the ventilation fan 3 is stopped.

When the ventilation fan 3 is operated, if the indoor relative humidity is still higher than the predetermined value, the absolute humidity of the outside air and the indoor room are compared again, and the indoor relative humidity becomes lower than the predetermined value, or the indoor relative humidity is still higher than the predetermined value. The ventilation fan 3 continues to be driven until the humidity becomes equal to or higher than the absolute humidity of the outside air.

Next, if the indoor relative humidity is higher than a predetermined value and the indoor absolute humidity is higher than the outdoor air absolute humidity, or if the ventilation fan 3 is driven to introduce low-humidity outdoor air into the room, the indoor and outdoor areas will have the same absolute humidity. If the indoor relative humidity is still higher than the predetermined value, the air conditioner 4 starts dehumidifying operation. Then, when the indoor relative humidity becomes lower than a predetermined value, the operation of the air conditioner 4 is stopped.

Furthermore, as described above, when the indoor relative humidity is controlled to a value lower than the predetermined value by the ventilation fan 3 or the air conditioner 4, the indoor temperature sensor 5
Based on the measured value, it is determined whether room temperature control is necessary, that is, whether the indoor temperature is within the comfortable temperature range. This comfortable temperature range is the range of comfortable temperature inside the living room relative to the outside temperature, for example,
In the summer, when the outside air is 31°C or higher, the comfortable temperature range is about 27.5°C to 28.5°C, and in the winter, when the outside air is 15°C or lower, the comfortable temperature range is 20.0°C.
It is estimated that the temperature ranges from ℃ to 21.5℃. Therefore, if the indoor temperature is outside the comfortable temperature range relative to the outside temperature, room temperature control is required.

When it is determined that room temperature control is necessary, the air conditioner 4 is driven to perform indoor cooling or heating operation, and when the indoor temperature falls or rises within the comfortable temperature range, the air conditioner 4 is stopped.

(G) Effects of the Invention As is clear from the above description, the present invention does not control the humidity by unconditionally driving the air conditioner when the indoor relative humidity in the basement exceeds a predetermined value. The air conditioner is operated only when the humidity is higher than the absolute humidity of the outside air, and the air conditioner is not used at other times, and the humidity can be controlled only by the ventilation fan, which consumes less electricity than the air conditioner.This reduces power consumption and saves energy. and
Moreover, since humidity control using the ventilation fan is performed by introducing fresh, low-humidity outside air into the room, the natural environment is actively introduced, making it possible to obtain a more comfortable indoor environment. Furthermore, according to the present invention, it is also equipped with a function to keep the indoor temperature within a comfortable temperature range, and it is possible to extremely easily manage the air environment in the basement to be optimal for living.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram of the apparatus of the present invention, FIG. 2 is a block diagram showing the configuration of the apparatus of the present invention, and FIG. 3 is a flowchart showing the operation of the apparatus of the present invention. 1... Residential basement, 3... Ventilation fan, 4... Air conditioner, 5... Indoor temperature sensor, 6... Indoor humidity sensor, 7... Outside air temperature sensor, 8... Outside air humidity sensor, 9... Control unit .

Claims (1)

[Claims] 1. A temperature sensor and a humidity sensor that measure the temperature and relative humidity inside a residential basement; a temperature sensor and a humidity sensor that measure the temperature and relative humidity of outside air; and a system that introduces outside air into the basement. A ventilation fan, an air conditioner that controls the environmental condition inside the basement, and absolute humidity calculated from numerical values from each temperature sensor and humidity sensor inside and outside the basement, and from the measured values input from each sensor. The main component is a control unit that controls the operation of the air conditioner, and this control unit operates the ventilation fan when the relative humidity in the basement is higher than a predetermined value and the indoor absolute humidity is higher than the outdoor absolute humidity. For residential use, the air conditioner is operated in a dehumidifying mode when the absolute humidity is lower than the absolute humidity of outside air, and the air conditioner is operated in a cooling or heating mode when the temperature inside the basement is outside a comfortable temperature range. Basement air conditioner.