JPH01137151A - Air conditioner - Google Patents

Abstract

PURPOSE:To enable a clock function to check the quality of wiring during installation, by a method wherein a wired remote control is provided with a source detecting means to detect a power source fed from the indoor machine side after installation and a clock display part to start counting of a clock timer by means of a feed source. CONSTITUTION:An indoor controller 1 is connected to a wired remote control 2 through two source lines 3 and a single transmission and receipt line 4 after mounting of them in a given room. The wired remote control 2 has a number of control key switches 5 contained in a case 2a of the remote control 2 and adapted to control various kinds of air conditioning operation, and an LED display part 6 to display various operation conditions and states of air conditioning operation controlled by a switch 5 by liquid crystal. A clock display part 7 to display a time is formed in the LED display part 6. A battery 8 serving as compensation for a power source during outage is removably mounted to the remote control 2. Since a clock display part 7 of the remote control 2 is so designed not to perform a clock timer counting motion before a point of time when it is actually connected to an indoor machine, discrimination of whether normal connection is made or not can be simply and instantaneously effected.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides an air conditioner having a wired remote control with a clock function that operates on two power sources: power supplied from an indoor unit and a battery in case of a power outage. It's about machines.

(Prior Art) When installing an air conditioner for a building, etc., an indoor unit is placed in each room, a remote control is placed in a control room, and a power line and a serial transmission/reception line are connected by wiring work.

In recent years, wired remote controllers with a clock function have appeared. Normally, this remote control is operated by the power supplied from the indoor unit, but a battery is installed in the wired remote control to compensate for power outages, and in the event of a power outage, the battery will operate the clock timer. It is designed to do this.

(Problem to be solved by the invention) By the way, after installing an air conditioner, it is impossible to judge whether the initial wiring work was performed correctly until the operation switch on the remote controller is turned on and the air conditioner is operated. There were no problems.

In addition, the clock function of the wired remote control was designed to start counting 03 on the clock timer as soon as batteries were inserted into the remote control, and it worked completely regardless of the presence or absence of the TLlli supplied from the indoor unit. .

The present invention has been made in consideration of the above circumstances, and it is an object of the present invention to provide an air conditioner that can check the suitability of the wiring at the time of installation for the clock function of the wired remote control described above.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a wired watch equipped with a clock function that operates on two power sources: a power supply from an indoor unit and a battery during a power outage. In an air conditioner that has a remote control and has an indoor unit and a wired remote control installed and specially wired, the wired remote control is equipped with a power detection means for detecting power supply from the indoor side after installation, and a clock timer using the power supply. and a clock display section that starts counting.

(Function) According to the above configuration, after the air conditioner is installed, when power is supplied from the indoor unit, the power supply detection means detects this, and upon this detection, the clock display starts counting the clock timer. After installation, you can easily check whether the wiring was done correctly by checking whether the clock display is working.

(Embodiments) Preferred embodiments of the present invention will be described below based on the accompanying drawings.

In FIG. 1, reference numeral 1 denotes an indoor controller provided in an indoor unit for air conditioning, and a wired remote controller 2 is connected to the indoor controller 1. That is, the indoor controller 1 and the wired remote controller 2 are each installed in a predetermined room and then connected through two power lines 3 and one transmission/reception line 4.

The wired remote control 2 is connected to the case 2a of the remote control 2.
There are many operation key switches 5 on the right for operating various air conditioning operations, and an LCD for displaying various operating conditions and states of the air conditioning operations operated by these switches 5.
It has a display section 6.

A clock display section 7 for displaying the time is formed on the LCD display section 6.

Further, the remote control 2 is removably provided with a battery 8 such as a dry battery or a storage battery for power supply compensation in the event of a power outage.

Note that even when a large number of indoor controllers 1 are installed, each is connected to one wired remote controller 2 through the line 3.4, and each indoor controller 1 is operated by the remote controller 2.

Next, a block diagram of this wired remote control 2 will be explained with reference to FIG.

First, the transmission/reception line 4 from the indoor controller 1 is connected to the microcomputer 9.
The power line 3 is connected to the microcomputer 9 via the AC/DC converter 10.

The battery 8 is connected to the microcomputer 9 separately from the power line 3.

The microcomputer 9 receives signals from the key operating section 11 from the various key switches 5, and is capable of displaying operating information of the key operating section 11 on the LCD display section 6. L.C.
A clock display section 7 in the D display section 6 is driven by a clock timer count circuit within the microcomputer 9.

The clock timer counting circuit of the microcomputer 9 is normally driven by power supplied from the power line 3 via the AC/DC converter 10, and is driven by power from the battery 8 during a power outage. The AC/DC converter 10 is connected to a voltage detection circuit 12 which is a power supply detection means for detecting the converted DC voltage, and outputs it to the microcomputer 9 when the voltage detected by the voltage detection circuit 12 is normal. ing.

Before the air conditioner is installed, the timer count circuit of the microcomputer 9 does not start timer counting even if the battery 8 is inserted into the remote control 2, and simply starts counting at the initial setting time (for example, 12:00).
) is displayed on the clock display section 7, but after the air conditioner is installed and the wiring work is completed, the presence or absence of power supplied from the power line 3 is determined, and the timer count is started using that power supply. ing. In this case, voltage detection circuit 1
2 determines whether the power supplied from the power line 3 to the microcomputer 9 via the AC/DC converter 10 is at the set voltage, and if it is an appropriate value, outputs it to the microcomputer 9, and the timer count starts at that output. It is now possible to do so. In this case, if the power supply is not at the set value, the microcomputer 9 will
It is also possible to determine that the power supply is abnormal and not to perform timer counting, and to display this fact on the LCD display unit 6.

In this case, the abnormality can be displayed together with the information sent from the indoor controller 1 via the transmission/reception line 4.

In addition, during a power outage, the timer count is performed by the battery 8 as described above, and the power supply from the power line 3 is cut off.
After this power outage returns, power is supplied from the power line 3 again. On the other hand, if the power line 3 is disconnected and reconnected due to relocation of the air conditioner, etc., the same state will occur, so a reset input is input to the wired remote controller 2. A switch (not shown) is provided, and unless the reset manual power 13 is input, it is determined that there is a power outage and the timer counts. If the reset manual power 13 is input, the timer count is stopped because there is wiring work due to relocation etc. However, after the construction is completed, the timer count is started again by determining the presence or absence of power supply.

The flowchart of the timer count circuit of the microcomputer 9 will be explained in detail with reference to FIG.

First, when the battery 8 is inserted into the wired remote control 2, control is started 14, and it is determined 15 whether or not power is being supplied from the indoor unit. At this time, if the installation of the air conditioner is not completed and there is no power supply to it (NO), the timer count is stopped and "12:00" is displayed 16. After that, when the installation is completed and power is supplied (YES)
), the timer clicks [・starts 17]. During this timer count, it is constantly determined 18 whether or not power is being supplied from the indoor unit, and if power is being supplied (YES), the timer count is continued 19.

At this time, if there is no power supply (NO), it is determined whether or not there is a reset input (2OL), and if there is no reset input (YES), it is assumed that there is a power outage and the timer continues to count by one as the power is supplied from the battery.

Also, if a reset input is input to the wired remote control 2 during relocation work etc. (NO), the timer count is stopped and '12:00' is displayed on the display 76, and the relocation work is checked again at the time of installation. Make judgments in the same way.

In addition, when a large number of indoor control devices 1 are connected to the wired remote controller 2, the power supply detection means detects this when all the power is supplied from each control device 1, and the timer count operation is performed based on this detection. Of course.

[Effects of the Invention] As is clear from the above explanation, the present invention exhibits the following excellent effects.

(1) The clock display section of the wired remote controller starts counting the clock timer only when it is actually connected to the indoor user through wiring work during installation, making it easy to determine whether the connection has been made properly or not. It becomes possible immediately.

(2) Since it is possible to determine whether the wiring is good or bad after installation and before actually starting the air conditioner, it is possible to protect the equipment by preventing it from operating in an abnormal state.

[Brief explanation of the drawing]

Fig. 1 is an external view showing one embodiment of the present invention, and Fig. 2 is an external view showing one embodiment of the present invention.
FIG. 3 is a block diagram of the wired remote control shown in FIG. 3, and FIG. 3 is a diagram showing a flowchart of the present invention. In the figure, 1 is an indoor controller, 2 is a wired remote control, 3 is a power line, 7 is a clock display, and 8 is a battery. Representative Patent Attorney Nori Chika Hiroshi Kanshu Uji
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Claims (1)

[Claims] In an air conditioner that has a wired remote control with a clock function that operates on two power sources: the power supply from the indoor unit and the battery in case of a power outage, and the indoor unit and wired remote control are wired at the time of installation, An air conditioner comprising: a power supply detection means for detecting power supply from an indoor unit; and a clock display section for starting counting of a clock timer using the power supply.