JP2001343145A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To comfortably and efficiently operate an air conditioner in houses different in air-conditioning load (airtightness and heat insulating performance). SOLUTION: The air conditioner is provided with a selecting means 13 for changing operating conditions in accordance with the air-conditioning load so that an operating state can be changed in accordance with the airtightness performance or the heat insulating load of the house. Accordingly, the same air conditioner can be comfortably and efficiently operated in the houses different in air-conditioning load (airtightness and heat insulating performance).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to control of an air conditioner.

[0002]

2. Description of the Related Art Conventionally, as this kind of technology, as shown in FIG. 4, an air conditioning load detecting means 41 detects temperature, humidity and the like, and an air conditioning set by an air conditioning setting means 42 such as a remote controller. In order to satisfy the condition, various control information is read from the storage device 45, and the control device 44 controls the compressor 46, the outdoor fan motor 47, the indoor fan motor 48, and the like. These controls are always determined by only signals from the air conditioning load detecting means 41 and the air conditioning setting means 42 irrespective of the air conditioning load.

[0003] In recent years, attention has been paid to highly airtight and highly insulated houses that have significantly improved airtightness and heat insulation performance as compared with conventional houses in view of the future. In these houses, it is difficult to respond with the same air conditioner control because the air conditioning load is greatly different, but this is handled by automatically determining the load and changing the control conditions of the air conditioner according to the operating state. .

[0004]

However, in the above-mentioned conventional method, since the determination of the air conditioning load is performed by automatic detection, it is greatly affected by the influence of the outside air temperature, heat radiation from the peripheral portion, and the like. It does not always lead to an optimal operating state. Also, the capacity of the microcomputer is not large for automatic determination. Since the control parameters of each actuator are stored in a table in accordance with the operating conditions, the capacity of the storage device is large. There were problems such as getting lost.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to operate an air conditioner comfortably under a design value even under an air conditioning load having greatly different airtightness and heat insulation performance. .

[0006]

According to the present invention, there is provided an air conditioner provided with a plurality of selecting means for selecting control conditions in accordance with the airtightness and heat insulation performance of a house. .

[0007] These selection means select the air-conditioning load manually (slide, push switch, touch switch) or by a signal from a remote controller.

Further, according to the present invention, a control condition as a reference is previously stored in a storage device inside the air conditioner, and a correction coefficient is given to various control conditions in accordance with the air conditioning load condition selected by the selection means. Are used as control conditions.

In the air conditioner provided with the selection means as described above, the operation according to the air conditioning load (airtightness and heat insulation performance) of the house can be performed, and the comfortable operation can be performed as designed.

In the multi-type air conditioner, the configuration is simplified by providing the setting device outside the room.

[0011]

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

(Embodiment 1) Referring to FIG.
A correction coefficient is obtained according to the house load (airtightness performance, heat insulation performance) selected in (3). Here, as a selection method, a correction coefficient is determined by a combination of these parameters by selecting airtightness performance and heat insulation performance according to each house. Then, by correcting the reference control parameters defined in the storage device 15, the operation control parameters of each actuator meeting the selected conditions are determined.

The control unit 14 judges from signals from the air-conditioning load detecting means 11 for detecting the operating state from the temperature and humidity, and the air-conditioning setting means 12 for setting the operating temperature and the like with a remote controller or the like, and makes correction based on the judgment. Operation control parameters
Various operating conditions are read from the motor, and the compressor 17, the indoor fan motor 18, and the indoor wind direction changing motor 1 are read according to the operating conditions.
9. Control the outdoor fan motor 110.

In the above configuration, the reference control parameters are given by the storage device 15, but they may be given as arithmetic expressions inside the microcomputer to correct the coefficients at the time of the arithmetic. With the above-described configuration, a single air conditioner can cope with houses having significantly different air conditioning loads (airtightness performance, heat insulation performance), and control can be easily performed.

The following control is actually performed in accordance with the air conditioning load. First, when the temperature difference between the temperature detected by the air-conditioning load detecting means 11 and the temperature under foot (set temperature in the air-conditioning setting means 12) reaches a certain value X, the compressor 17 is stopped or operated to adjust the room temperature. However, if the air conditioning load (airtightness performance or heat insulation performance) is significantly different, the temperature difference between the temperature detected by the air conditioning load detection means 11 and the underfoot temperature becomes large, and the temperature is as set. You will not be able to drive.

Therefore, by changing a certain value X by the selection means 13, it is possible to always drive comfortably as set. Also, by changing the operating frequency of the compressor 17 at the same time, the number of stoppages of the compressor is reduced, thereby further improving comfort.

Next, the control of the indoor fan motor and the indoor wind direction changing motor are also switched in conjunction with the setting device 13, so that the larger the air-conditioning load (airtightness or heat insulation performance), the smaller the air volume and the outward the wind direction. To change. The aim is to improve comfort.

With these controls, even in a house where the air-conditioning load (airtightness performance and heat insulation performance) is greatly different, it is possible to always operate with a capacity suitable for the house, so that efficient operation becomes possible. It is also easily conceivable that more comfortable control can be performed. Since the correction is performed by calculation based on the reference control parameters, control parameters for each condition are not required, which leads to cost reduction.

(Embodiment 2) FIG. 2 is a configuration diagram when the present invention is applied to a multi-type air conditioner.
The information selected by the selection means 23 provided in the outdoor unit 20 is transmitted to the indoor units 29a, 29b,. It can be easily understood that this configuration makes the control simpler than providing the setting device individually in the indoor unit.

In addition, by controlling all the indoor units in the outdoor unit collectively, it is not necessary to send the information selected by the selection unit 23 to the indoor unit, and the outdoor unit can respond to the state selected by the selection unit 23. The control of the indoor unit can be performed by determining the control condition using the correction coefficient and transmitting the command, thereby further simplifying the control.

[0021]

As is apparent from the above embodiment, according to the first aspect of the present invention, a plurality of control conditions are selected for the air conditioner in accordance with the air conditioning load (airtightness or heat insulation performance) of the house. By providing the selection means, it is possible to perform optimal operation control even in a house where the same air conditioner has significantly different air conditioning loads (airtightness performance and heat insulation performance).

According to the fifth and sixth aspects of the present invention, the setting can be easily performed by providing the setting device in the indoor unit.

According to the seventh aspect of the present invention, since the setting device is provided in the outdoor unit in the multi-type air conditioner, it is not necessary to set individually in the indoor unit, and the processing of the setting device can be easily performed.

[Brief description of the drawings]

FIG. 1 is a control block diagram of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a control block diagram of an air conditioner according to a second embodiment of the present invention.

FIG. 3 is a control block diagram of a conventional air conditioner.

[Explanation of symbols]

 Reference Signs List 11 air-conditioning load detecting means 12 air-conditioning setting means 13, 23 selecting means 14 control device 15 storage device 16 correction coefficient 17 compressor 18 indoor fan motor 19 indoor wind direction changing motor 110 outdoor fan motor 20 outdoor units 29a, 29b, 29n indoor unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) F24F 11/04 F24F 11/04 F (72) Inventor Kuniyasu Uchiyama 1006 Odakadoma, Kazuma, Osaka Matsushita Electric Industrial (72) Inventor Takayuki Iseki 1006 Kadoma, Kazuma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Yoshimasa Ishikawa 1006 Odaka, Kazuma, Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. 3L060 AA05 CC02 CC06 CC19 DD02 DD08 EE04 EE05 3L061 BB03 BE02 BF02 BF05 BF08

Claims (7)

[Claims] 1. An air conditioning load is detected, and based on the load,
In an air conditioner provided with a control device for controlling various actuators, a selection means for selecting based on the airtightness or heat insulation performance of a house in which the air conditioner is installed is provided, and the control device is selected by the selection means. An air conditioner characterized in that the control parameters of the actuator are determined and controlled in accordance with the contents performed. 2. The actuator is a variable capacity compressor,
2. The air conditioner according to claim 1, wherein the control parameter is a temperature difference between the room temperature and the set temperature. 3. The air conditioner according to claim 1, wherein the actuator is an indoor fan motor, and the control parameter is a rotation speed of the fan motor of the indoor unit. 4. The air conditioner according to claim 1, wherein the actuator is an indoor wind direction changing device, and the control parameter is a position of a wind direction changing blade of the indoor unit. 5. The selection means comprises a slide, a push switch,
The air conditioner according to claim 1, wherein the air conditioner is a touch switch and can be manually operated. 6. The air conditioner according to claim 1, wherein the selection means is provided in the remote controller. 7. The air conditioner according to claim 1, wherein the air conditioner is a multi-type in which a plurality of indoor units are connected to one outdoor unit, and selection means is provided in the outdoor unit. apparatus.