JPS6219635A - Air conditioner - Google Patents

Abstract

PURPOSE:To remote-control the maximum current to an air conditioner or a compressor by operating with a current control means on a remote-control panel a preferential switch for remote-controlling the main body of an air conditioner in preference to manual selection switch and thereby being able to set up the maximum current to the main body of the air conditioner. CONSTITUTION:On one side of the main body of an air conditioner near an operation panel 2 a remote-change-over terminal 8a for setting up maximum current and a preferential switch 8 provided with a remote-operation control terminal 8b are provided, and it is connected to a micro-computer 9 which controls the operation of a compressor and other equipment incorporated in the main body 1 of the air conditioner. Further, this preferential switch 8 is provided with a current control means which can be changed over to the control of maximum current that is set up in a remote operation device in preference to a manual selection switch 4 on the base of the signals from the remote operation control, when, for instance, maximum current setting is made by remote operation control for the air conditioner as a whole or for a compressor 12. Since the preferential switch 8 is equipped with a current control means, the efficiency in rise at starting room cooling or room heating by remote operation can be raised selectively as desired, and handling can be also simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an air conditioner that controls indoor temperature, and particularly to a maximum current control device for this air conditioner.

[Technical background of the invention and its problems]

Air conditioners whose capacity can be controlled using conventional inverters are
As shown in FIG.
A display section 3 for operating status and a manual setting switch (changeover setting switch) 4 for setting the maximum current are attached, and a remote control device 6 is provided below the operation panel 2 via a lead 85. It is constructed by adding an operation switch 7.

Therefore, the above-mentioned air conditioner is operated by the operation switch 7 after the maximum current is set in advance by the manual setting switch 4.

In other words, the maximum amount of electricity used for the entire building is determined in advance by a contract with the power company, and takes into account the amount of electricity used by home appliances such as televisions, vacuum cleaners, microwave ovens, and washing machines. Set the maximum current of the above air conditioner to the manual setting switch, for example, 12A, 15A, 2A, etc.
One of the three stages of OA is switched to skip the setting.

However, in general, household electrical equipment does not always use all of its electrical capacity, and often uses only a portion of its electrical capacity.

Recently, we have been able to maximize the capacity of the air conditioner by detecting the current supply source to the above home appliances and making the current limit to the air conditioner variable according to the power consumption of other electrical devices. More efficient home control systems have been developed.

When other home appliances are being used frequently and are consuming a lot of electricity, lower the current limit value of the air conditioner, and vice versa. When there are few conditions and there is sufficient power to be supplied, the current limit value is increased to increase the operating capacity of the air conditioner.

However, in the above-mentioned air conditioner, when the operation is controlled by remote control from the home control system, the setting value set on the manual setting switch 4 has priority, so that the electric capacity may be temporarily changed, for example. For example, if you do not return it to the original position of 20A after setting it to 12A, even if you increase the limiting current value to 20A on the home control side, the start-up efficiency at the time of starting cooling and heating will be low. There are problems such as the ability of the air conditioner not being utilized effectively and the capabilities of remote control not being fully utilized.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and is such that the remote priority switch of the air conditioner body is given priority over the manual selection switch by means of current control means provided on the remote control panel. The present invention provides an air conditioning system in which the maximum current of an air conditioner or a compressor can be remotely controlled by limiting and setting the maximum current.

[Summary of the invention]

The present invention provides a manual selection switch and a remote priority switch for limiting and setting the maximum current on the air conditioner body,
This priority switch is provided with a current control means, and is configured to be able to set the maximum current with priority over the manual maximum current setting of the air conditioner main body.

(Example of the invention) Hereinafter, the present invention will be described with reference to an illustrated embodiment.

1 to 4, reference numeral 1 denotes an air conditioner body equipped with an air outlet 1a, and an operation panel 2 is provided on the front of the air conditioner body 1.
is equipped with an operating status display section 3 and a manual setting switch 4 for limiting the maximum current, and the manual setting switch 4 can set the maximum current to 12A, 15A, 2OA, for example.
V'J can be set in three stages.

Further, a remote control device 6 is provided below the operation panel 2 via a lead wire 5, and an operation switch 7 and the like are attached to this remote control device 6.

On the other hand, on one side of the air conditioner main body 1 near the operation panel 2, a remote priority switch 8 is provided which includes a remote switching terminal 8a for setting the maximum current and a remote operation control terminal 8b. Moreover, as shown in FIG. 2, this priority switch 8 is connected to a microcomputer (C, P, U
)9 is connected. Further, for example, when the maximum current setting of the entire air conditioner or the compressor 12 is controlled by remote operation, the priority switch 8 is configured to control the manual selection switch 4 based on the signal of the remote operation control.
The device is equipped with current control means that can be switched to the maximum current control set in the remote device with priority over the maximum current control. Furthermore, a compression Ifi 12 including an inverter 10 and a converter 11 is connected to the microcomputer 9, and this converter 11 has Ti1I! Power supply circuit 14 connected to 13
are connected. Further, a current sensor 15 is connected to the microcomputer 9, and the current sensor 15 detects the load current of the power supply circuit 14 flowing to the compressor 12 and the like.

As shown in FIGS. 3 and 4, in addition to the air conditioner main unit 1, the remote control panel (2) includes, for example, a ventilation fan 16, a telephone 17, etc. installed in each room of the building 18. Furthermore, the remote control panel I is equipped with a control function composed of a microcomputer (not shown), and on the input terminal side, a device for detecting the current used in the entire building 18, a gas and security device, etc. are installed. The air conditioner body 1, the ventilation fan 16, and other electric devices are connected to this output side. In addition, the telephone 17 is connected to the remote control panel I, which allows the air conditioner body 1 in the building to be communicated to a device for reporting an abnormal situation in the building 18 to a predetermined location outside, or from other telephones. It is now possible to override functions such as controlling the operation of the vehicle. Furthermore, the program built into the microcomputer of this remote control panel ■ is pre-loaded with a program that determines the maximum current setting value of the air conditioner body 1 according to the usage status of the electric line equipment in the building. , the above remote control panel I
By disconnecting the terminals 8a and 8b for remote operation control of the air conditioner body 1, the above-mentioned functions are automatically operated.

Therefore, when remote control is not being performed, the remote priority switch 8 sets the maximum current to
For example, 12
△, 15A, set to the maximum current of 2OA, 17J: U.

Next, when remote control is being performed, the current control means in the microcomputer 9 connected to the remote priority switch 8 takes priority over the maximum current setting value of the manual setting switch 4 of the air conditioner body 1. The maximum current can be set by

In this way, the current control means by the remote priority selection switch 8 is adjusted to the maximum current setting value (
For example, 12A), the maximum current setting (for example, 2O
Since priority can be given to A), it is possible to improve the start-up operation of cooling and heating, for example. In particular, by being connected to a central remote control panel It: telephone 17.

You can now perform remote priority operations even when you are away.

(Effects of the Invention) As described above, according to the present invention, the air conditioner body 1 is provided with a manual selection switch 4 that limits and sets the maximum current, and a remote priority switch 8. Since it is equipped with a control means, it not only allows you to freely select and increase the start-up efficiency at the time of starting cooling and heating by remote control, but also has excellent effects such as easy handling and operation. be.

[Brief explanation of the drawing]

FIG. 1 is a front view of an air conditioner according to the present invention, FIG. 2 is a circuit diagram of an air conditioner according to the present invention, and FIG. 3 is a system diagram connected to a microcomputer of the air conditioner according to the present invention. FIG. 4 is a plan view of the same arrangement as above, and FIG. 5 is a front view of the conventional air conditioner. 1...Air conditioner body, 2...Operation panel, 4...
Manual setting switch, 6... remote control,
7... Operation switch, 8... Priority switch, 9...
・Microcomputer, 12... Compressor.

Claims (1)

[Claims] Upon receiving a limit signal from a home control device having a control device for limiting the maximum current of the air conditioner, a manual selection switch for setting the limit value of the control device, and a current control means, the limit value of the control device is set. An air conditioner characterized by comprising a remote priority switch that gives priority to control over a manual selection switch.