JPS6115477Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of air conditioning equipment, and aims to reduce the energy required for air conditioning (cooling) and improve comfort by simply combining it with a blower. This is one of the purposes.

Generally, the air conditioner that cools the room has a fifth
As shown in the figure, there is an indoor unit c made of construction material a, an indoor unit c having a well-known structure, and an outdoor unit d.
In this configuration, outdoor units e each having a well-known structure are installed in the two, and these are connected by a refrigerant pipe f. When this device is operated, the temperature in room b decreases due to the heat absorption action of indoor unit c, and at the same time heat intrudes into room b from outside d, but overall the temperature in room b decreases. human body g
It can give a cooling sensation.

In this case, if the cooling temperature in room b is maintained at a high level, the amount of heat absorbed by indoor unit c will be smaller because there will be less heat intrusion from outdoor d into room b.
The energy required to maintain the operation of both indoor and outdoor units c and e may be small, but if that happens, the indoor and outdoor units b
This has the disadvantage that the cool feeling of the human body g in the room decreases.

On the other hand, it is generally well known that in addition to temperature, airflow is a factor that affects the cooling sensation of the human body, but there are multiple relationships between temperature and airflow that provide comfort to the human body, and it is difficult to determine the optimal setting value. It's difficult.

In view of the above-mentioned conventional problems, the present invention provides an air conditioner that is comfortable and consumes less energy.

Hereinafter, the present invention will be described with reference to FIGS. 1 to 4 of the accompanying drawings showing one embodiment thereof.

First, the schematic structure of the air conditioner will be explained with reference to FIG.

In the figure, 1 is a building forming an indoor space 2, 3 is an indoor unit having a known structure and equipped with an indoor heat exchanger 4 and an indoor blower 5, and 6 is an outdoor unit that is paired with the indoor unit 3. , an outdoor heat exchanger 7, an outdoor blower 8, etc., and the outdoor unit 6 and the indoor unit 4 are connected by a pipe 9. 10 is a blower unit; blower 11;
It is equipped with an air exchange changing device 12 having a well-known structure so that the air blowing direction can be changed arbitrarily. This blower unit 10 is electrically connected to the indoor unit 3 via a connecting line 13. Reference numeral 14 indicates a chair provided at a position where a resident 15 is mainly present, and the blower unit 10 is always connected to the chair 14.
The mounting position is arbitrarily set so as to generate airflow to the side.

Next, a refrigeration cycle and a schematic electric circuit of the air conditioner having the above configuration will be explained with reference to FIG. 2. Here, the same numbers as those in FIG. 1 are given the same numbers, and the explanation is omitted.

In the figure, 18 and 19 are a compressor and a pressure reducer, respectively, which together with an outdoor heat exchanger 7 and an indoor heat exchanger 4 constitute a well-known refrigeration cycle. 21 is a temperature-sensitive resistance element that senses the indoor temperature;
22 is a control device, which includes the compressor 18, the outdoor blower 8, the indoor blower 5, and the temperature-sensitive resistance element 2.
1 and the blower 11 .

Next, an electric circuit including the control device 22 will be explained with reference to FIG. Here, Figure 1,
Components that are the same as those in FIG. 2 are given the same numbers and their explanation will be omitted.

In the figure, 30 is a power supply, to which the blower 11 is connected via a main switch 31, and the outdoor blower 8, the indoor blower 5, and the compressor 18 are connected in parallel to the blower 11 via a relay contact 32. parallel circuits are connected. Further, the temperature-sensitive resistance element 21 and the comparison resistor 36 are connected in series via a transformer 34 and a DC-AC converter 35, and in parallel thereto, a relay electromagnetic coil 37 corresponding to the relay contact 32 and a base voltage A transistor 38 is connected between the temperature sensitive resistance element 21 and the comparison resistor 36.

In the above configuration, the operation will be explained next.

First, when the main switch 31 is turned ON, the compressor 18, outdoor blower 8, and indoor blower 5 operate, and the refrigerant discharged from the compressor 18 is sequentially transferred to the outdoor heat exchanger 7, the pressure reducing device 19, and the indoor heat source. The refrigerant passes through the exchanger 4 and is sucked into the compressor 18 again, and this flow is repeated thereafter, during which time the refrigerant changes its state and forms a refrigeration cycle. That is, in the outdoor heat exchanger 7, a heat radiation effect is performed by forced convection caused by the outdoor fan 8, while in the indoor heat exchanger 4, a heat absorption effect is performed by forced convection caused by the indoor fan 5, and the indoor air 2 is cooled. will be done. In addition, the transistor 38 is changed depending on the magnitude of the base voltage determined by the resistance values of both the comparison resistor 36 whose resistance value is selected in advance and the temperature-sensitive resistance element 21 whose resistance changes depending on the temperature in the room 2. works. Due to this, the ON/OFF operation of the relay electromagnetic coil 37, that is, the ON/OFF operation of the relay contact 32, turns the cooling operation ON/OFF.
The indoor temperature 2 is maintained at a temperature corresponding to the preset resistance value of the comparison resistor 36 through OFF control. On the other hand, the blower 11 operates at the same time as the main switch is turned on, and the rotation of the blower 11 causes air to be blown, and by adjusting the air direction changing device 12, an airflow is provided toward the occupant 15 in the room 2 as shown by the arrow.

Here, the speed of air blowing (amount of air blowing) to the occupant 15 will be explained.

In general, a sensory diagram is known that shows that the comfort level varies by changing the air blowing speed (amount of air blowing) to the human body at a certain ambient temperature. If the relationship between the sensible temperature experienced by the human body and the wind speed is summarized based on this sensory diagram, the characteristics shown in FIG. 4 are obtained.

In the same figure, the horizontal axis shows airflow velocity (m/sec)
The indoor temperature (° C.) is plotted on the vertical axis, and the shaded area A surrounded by broken lines a and b indicates the combination of airflow and indoor temperature that provides comfort. As is clear from this figure, by providing airflow even when the indoor temperature is high, for example, even when the indoor temperature is 30°C, by providing a wind speed of 1 (m/sec) to the human body, comfort can be achieved. It is something that can be done.

Therefore, if the indoor unit 3 is configured to lower the atmospheric temperature in the room 2 and the blower unit 10 provides airflow at a certain speed to the occupant 15 as in the above embodiment, the set temperature in the room will be determined by the comparison resistor. The temperature can be set higher (approximately 2° C.) than in the case of a conventional air conditioner temperature setting determined by the resistance value of the body 36.

and 0.4 to 2.0 m/room for resident 15 in the room.
By providing airflow at a speed of Even if the energy required to operate the blower unit 10 is taken into consideration, the total input energy can be reduced. Furthermore, even if the room temperature reaches the set value and the compressor 18, indoor blower 5, etc. stop, the blower unit 10 continues to blow air, so you can continue to feel cool. Since no airflow passes through, the condensed water in the indoor heat exchanger 4 re-evaporates and increases the indoor humidity.
Does not cause discomfort. Since the airflow is provided to the occupants at the same time as the main switch 31 is turned on, a cool feeling can be obtained at the same time as the operation starts.

Note that the speed of the airflow from the blower unit 10 may be varied in accordance with the change in the indoor temperature, not limited to this embodiment.

As is clear from the above embodiments, the air conditioner according to the present invention is provided with a cooling device and a blower unit that provides airflow to the human body in the living space, and when the indoor temperature reaches a set value, only the blower unit is turned off. The air conditioner operates continuously to provide airflow to the occupants.The cooling system lowers the temperature inside the living space and the blower unit provides airflow to the human body, giving the human body a cooling sensation. The cooling temperature of the device can be set higher than before, which reduces the operating time of the compressor, which consumes a lot of power, and reduces overall energy consumption. Since no water flows through the evaporator, re-evaporation of condensed water adhering to the evaporator is not promoted, and comfort is not impaired. Furthermore, since the blower unit is selected only by the main switch of the air conditioner, air is blown from the start of operation of the air conditioner, which has various advantages such as promoting cooling, improving start-up speed, etc. . It has various advantages.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the schematic structure of an air conditioner according to an embodiment of the present invention, FIG. 2 is a refrigeration cycle diagram in the same air conditioner, FIG. 3 is an electric circuit diagram in the same air conditioner, and FIG. The figure shows the temperature experienced by the human body in the same air conditioner.
The wind speed characteristic diagram, FIG. 5, is a schematic structural diagram of an air conditioner showing a conventional example. 3...Indoor unit, 4...Indoor heat exchanger, 5
...Indoor blower, 6...Outdoor unit, 7...Outdoor heat exchanger, 10...Blower unit, 18...Compressor, 19...Reducer, 22...Control device.

Claims (1)

[Scope of utility model registration request] Cooling devices 3 and 6 that are equipped with a refrigeration cycle consisting of a compressor 18, a condenser 7, a pressure reducing device 19, and an evaporator 4 and a blower device 5 to cool the living space, and a main switch 31 of the cooling devices 3 and 6. A blower unit 10 is provided that provides airflow to the human body in the living space, and the main switch 31 is turned on to operate the air conditioner 3, 6,
The air blower 5 and the air blower unit 10 are operated, and the temperature inside the living space is detected. When the temperature inside the living space reaches the set temperature, the cooling devices 3 and 6 and the air blower are operated. 5 is an air conditioner equipped with a control device 22 that stops operation.