JPH05296548A - Air conditioner - Google Patents

Abstract

PURPOSE:To assure the most suitable air speed or air volume corresponding to an installing position of an indoor device and improve an air conditioning effect by a method wherein information an installing position of an indoor device is inputted and a setting variation range of an air blowing volume or a blowing temperature in the indoor device is selected in response to the input information. CONSTITUTION:A freezing cycle 1 is comprised of a compressor 2 for compressing refrigerant, a four-way valve 3 for changing-over a cooling operation or a heating operation, an indoor heat exchanger 5 having an indoor fan 4, an expansion valve 6, and an outdoor heat exchanger 8 having an outdoor fan 7. The indoor device having the indoor fan 4 or the indoor heat exchanger 5 and the like has a heat exchanging temperature sensor 12 or an indoor temperature sensor 13 mounted therein. In this case, the indoor device has a set height switch 14 therein. The compressor 2 and the indoor fan 4 are controlled for their operation through an inverter 10 and a fan motor 11 under a control of the control circuit 18 in response to a sensing signal from the set height switch 14. With such an arrangement, the most suitable air speed or air volume corresponding to the mounting height is assured and an air conditioning effect is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner capable of comfortably cooling and heating a living space.

[0002]

2. Description of the Related Art A general air conditioner controls the inverter frequency of a variable capacity compressor, the amount of air blown from an indoor blower fan, the direction of wind, etc., so as to maintain a comfortable temperature range for a user.

Considering the heating operation, in order to increase the capacity of the air conditioner, there are provided a control means for raising the condensing temperature of the indoor heat exchanger to raise the blowing temperature and a control means for raising the blowing amount of the indoor blower fan. Is equipped with. However, the actual operating condition depends on the installation height of the indoor unit, etc.
Since there are individual differences in the environment that you feel comfortable, you can set the automatic operation mode, and dissatisfied users can change the set temperature and select the blowing amount of the indoor blower fan from strong, weak, and slight driving I was changing modes.

However, especially when the automatic operation mode is set during heating operation, in order to increase the heating capacity, the blowing temperature is increased without increasing the wind speed, so that the reach of warm air is reduced due to the influence of buoyancy, and the vicinity of the ceiling is reduced. In some cases, the wrong control that the temperature stratification was formed was performed. Also,
Many users feel uncomfortable when the warm air blown out from the indoor unit hits their face or nape of the neck. If both seated users are present, setting the air flow rate according to the height of the standing user will prevent the wind from reaching the height of the sitting user, so it is necessary to raise the set temperature. Also, as the set temperature is raised, the degree of warm air arrival is reduced due to the effect of buoyancy, as described above, so it is often necessary to reset the air flow rate again, and the operation mode should be changed to make the room comfortable. There was a problem that it was difficult to set.

[0005]

In the above-mentioned air conditioner, it is difficult to set the operation mode to make the room comfortable because it is not possible to control the air blow according to the set height of the indoor unit. was there. The present invention has been made in view of the above circumstances, and an object thereof is to provide an air conditioner that can realize an environment in which a user feels more comfortable.

[0006]

In order to achieve the above object, an air conditioner of the present invention is a heat exchanger having a refrigerant pipe into which a high temperature refrigerant discharged from a compressor during heating flows, and this heat exchanger. An indoor unit having a blower that blows out the air that flows through the inside of the indoor unit to the outside of the indoor unit, input means for inputting the installation position information of this indoor unit, and based on the information input to this input means And a selection unit for selecting a setting variation range of the blown air amount and the blowing temperature blown from the indoor unit.

[0007]

With this structure, the optimum wind speed (air volume) suitable for the installation height can be set automatically by the indoor unit height information from the input means for inputting the installation position information, and You can comfortably cool and heat the space.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cycle diagram showing the structure of a refrigeration cycle of an air conditioner according to an embodiment of the present invention. In the figure, a refrigeration cycle 1 includes a compressor for compressing a refrigerant 2, a four-way valve 3 for switching between cooling and heating, an indoor heat exchanger 5 having an indoor fan 4, an expansion valve 6, an outdoor heat exchange having an outdoor fan 7. A closed cycle is configured with the container 8.

The four-way valve 3 is in the state shown by the solid line in the figure during the heating operation, and is switched to the state shown by the broken line in the figure during the cooling operation. The compressor 2 can change its capacity by controlling the frequency of the inverter 10. Indoor fan 4
Is controlled by the fan motor 11. An indoor unit (not shown) including an indoor fan 4 and an indoor heat exchanger 5
A heat exchange temperature sensor 12 that detects the temperature of the indoor heat exchanger 5 and an indoor temperature sensor 13 that detects the temperature of the room in which the indoor unit is installed are provided in the.

The installation height input switch 14 is shown in FIG.
The indoor unit 15 is installed inside the front panel 16 of the indoor unit 15 as shown in FIG. 2 or is installed on the front surface of the remote controller 17 as shown in FIG. Height) is input. As shown in the figure, the input switch 14 is composed of a slide switch, and is "3.2 m, 2.8 m, 2.4 m".
However, in addition to this, it is also possible to input five types and more installation heights. Further, not only the installation height but also the size of the room, the position information with respect to the wall surface, the distance to an obstacle such as a chest of drawers, and the like may be input. When the installation height input switch 14 inputs the installation height information when the indoor unit 15 is installed, this information is sent to the control circuit 18, and the control circuit 18 controls the inverter 10 and the fan model according to the installation height information. -Control the compressor 11 and the compressor 2
And the rotation control of the indoor fan 4 is performed. Reference numeral 19 denotes a driving operation unit (remote control) which transmits driving setting data such as driving start, driving stop and temperature setting of the air conditioner to the control circuit 18.

FIG. 4 is a control block diagram of the air conditioner according to one embodiment of the present invention. The control circuit 18 described above is
The indoor fan 4 is determined based on the control section 16 including a microcomputer and its peripherals and information about the installation position of the indoor unit 15 set by the set height input switch 14.
Of the fan motor 11 and the frequency range of the frequency of the inverter 10 of the compressor 2 are selected, the indoor temperature information detected by the indoor temperature sensor 13, and the operation unit 19 stored in the set temperature circuit 23. It is composed of a comparison circuit 22 for comparing the set room temperature information set in step 1, an indoor fan drive circuit 24 for driving the fan motor 11, and an inverter drive circuit 25 for driving the inverter 10 of the compressor 2.

The control unit 16 uses the information of the selection circuit 21, the operation unit 19, the indoor temperature sensor 13, the comparison circuit 22, and the heat exchange temperature sensor 12 to determine the rotation speed of the indoor fan 4 and the compressor 2 and the indoor unit 15. Louvers (not shown) and the like. Next, the operation of the air conditioner of the present invention having the above-mentioned configuration will be described.

When mounting the indoor unit 15 in the room, the mounting position (height) of the indoor unit 15 is input by the input switch 14. The input switch 14 is composed of a slide switch, and is "3.2 m, 2.8 m, 2.4".
Although three different heights of "m" can be input, as shown in the operation characteristic diagram of the indoor fan according to the embodiment of the air conditioner of the present invention in FIG. 5, the selection circuit 2 can be input by inputting the installation height.
1 determines the air volume mode of the indoor fan 4. In the figure, when the installation height "3.2 m" is entered, the air volume mode is operated in the range of 5-9, and the installation height "2.8 m"
When the input is, the air volume mode is operated in the range of 3 to 7, and when the installation height "2.4 m" is input, the air volume mode is operated in the range of 1 to 5. That is, the larger the installation height (the higher the installation position), the larger the air volume mode is operated.

This air volume mode is, for example, the installation height "3.
If "2 m" is input, the air volume mode is operated only in the range of 5-9. That is, even if the air volume is adjusted by the operation operating unit 19, the air volume is operated only within the range of 5 to 9. Therefore, even if the comparison temperature difference by the comparison circuit 22 is too small or too large, the air volume is operated only in the range of 5-9. The same applies to other installation heights.

The selection circuit 21 also determines the frequency of the inverter 10 of the compressor 2 by inputting the installation height. In this case, the higher the installation height, the higher the rotation frequency of the inverter 10.

As described above, since the variation range of the air volume (wind speed) can be selected according to the installation height of the indoor unit 15, the user only needs to input the installation height of the indoor unit 15 with the installation height input switch 14. It becomes easier to set the outlet temperature, and you can operate the air conditioner to feel more comfortable.

[0018]

As described above, according to the present invention, the optimum wind speed (air volume) suitable for the installation height can be determined by the indoor unit height information from the set height input switch 14 for inputting the installation position information. It can be set automatically and the living space can be comfortably cooled and heated.

[Brief description of drawings]

FIG. 1 is a cycle diagram showing a configuration of a refrigeration cycle of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of an indoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 3 is a configuration diagram of a remote controller of the air-conditioning apparatus according to an embodiment of the present invention.

FIG. 4 is a control block diagram of an air conditioner according to an embodiment of the present invention.

FIG. 5 is an operating characteristic diagram of the indoor fan according to the embodiment of the air conditioner of the present invention.

[Explanation of symbols]

13 ... Indoor temperature sensor, 14 ... Set height input switch,
15 ... Indoor unit, 18 ... Control circuit, 19 ... Driving operation part, 2
0 ... Control unit, 21 ... Selection circuit, 22 ... Comparison circuit, 24 ...
Indoor fan drive circuit, 25 ... Inverter drive circuit.

Claims (1)

[Claims] 1. A heat exchanger having a refrigerant pipe into which a high-temperature refrigerant discharged from a compressor flows during heating, and air which passes through the heat exchanger and flows into the indoor unit is discharged to the outside of the indoor unit. An indoor unit having a blower, an input unit for inputting installation position information of this indoor unit, and a selection for selecting a setting variation range of the blown air amount blown out from the indoor unit based on the information input to this input unit An air conditioner comprising: