JP3121482B2 - Air conditioner with self-diagnosis display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner which performs self-diagnosis and display without providing a special diagnostic switch.

[0002]

2. Description of the Related Art Conventionally, various devices and methods have been considered for self-diagnosis of an air conditioner and display of the result.
The most typical one is disclosed in JP-A-1-131 shown in FIG.
No. 846 publication. As shown in FIG. 7 (a), when a user presses an "inspection button" on a remote control, a remote control type (hereinafter referred to as a remote control) operation display unit is connected to a plurality of air conditioner units. The computer enters the failure diagnosis display mode, sequentially designates the address of each air conditioning unit, and if there is a failure in the air conditioning unit at the designated address, displays the address and the content of the failure on the remote control. FIG. 7B shows an example thereof.

[0003] Japanese Patent Application Laid-Open No. 3-260545 also discloses that
A setting device for setting the self-diagnosis of the control board of the indoor unit and the outdoor unit of the air conditioner, and a display for displaying the setting information are provided, and when the self-diagnosis mode of the control board is selected by the setting device of the remote controller, In addition to displaying that the mode is active, self-diagnosis of the selected indoor unit or outdoor unit is performed,
It is disclosed that the remote control displays when it receives the result.

[0004]

Since the conventional air conditioner is configured as described above, there is a problem that the self-diagnosis mode must be set when performing self-diagnosis.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air conditioner with a self-diagnosis display device that performs self-diagnosis with good operability and displays a diagnosis result.

[0006]

An air conditioner with a self-diagnosis display device according to the present invention has an air conditioner body including a microcomputer and the like and a remote controller for remotely controlling the operation of the body. In the self-diagnosis means for performing self-diagnosis of the main body, provided in the main body, and one of the switches provided in the remote control or the main body and frequently operating the main body, and other than the main body operation operation function One switch having a function of activating the self-diagnosis means, and a display device provided on the remote controller and displaying a diagnosis result of the self-diagnosis means are provided.

In the air conditioner with a self-diagnosis display device according to a second aspect, the display device displays the failure result when the self-diagnosis result of the self-diagnosis means is not normal, and when the self-diagnosis result is normal, the operation state of the main body is displayed. Is displayed.

In the air conditioner with a self-diagnosis display device according to a third aspect of the present invention, the display device displays the failure result when the self-diagnosis result of the self-diagnosis means is not normal, and the operation mode is automatically set when the self-diagnosis result is normal. If the operation is the operation, the set temperature is displayed. If the operation mode is the manual operation, the operation state of the main body is displayed.

Further, in the air conditioner with a self-diagnosis display device according to the fourth aspect, when one switch on the remote control side is turned on, a signal for remote function check is further added and transmitted to the main body side. The result is collated with the normal signal and the result is transmitted to the remote controller.

In the air conditioner with a self-diagnosis display device according to a fifth aspect, the self-diagnosis means activated by operation of one frequently operated switch by a setting switch different from one frequently operated switch. Is stopped and the self-diagnosis operation is skipped.

[0011]

In the air conditioner with a self-diagnosis display device according to the present invention, the self-diagnosis means is activated by operating a single frequently operated switch without using a dedicated self-diagnosis start switch, and the diagnosis result is displayed.

In the air conditioner with a self-diagnosis display device according to the second aspect, the failure result is displayed if the diagnosis result is not normal, and the operating state of the main body is displayed if the diagnosis result is normal.

In the air conditioner with a self-diagnosis display device according to the third aspect, the failure result is displayed if the diagnosis result is not normal, and if it is normal, the set temperature is displayed if the operation mode is automatic operation. In the case of manual operation, the operation state of the main body is displayed.

Further, in the air conditioner with a self-diagnosis display device according to the fourth aspect, when one switch on the remote control side is pressed, a signal for remote function check is transmitted, and the result of collation on the main body side is returned.

The air conditioner with the self-diagnosis display device according to the fifth aspect does not activate the self-diagnosis means depending on the setting of other setting switches, and immediately displays the operation state of the main body.

[0016]

[Embodiment 1] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view of a main body of an indoor unit of an air conditioner. In the figure, 1
a is an indoor unit body, 1b is a receiving unit for receiving a signal from a remote controller (hereinafter abbreviated as a remote controller), 1
c is an infrared transmitter for transmitting a signal to a remote controller, 1d is a microcomputer (hereinafter referred to as a microcomputer) built in the main body, 1e is a thermistor for detecting a room temperature, and 1f.
Is a power switch of the "run / stop" air conditioner.
FIG. 2 is an operation flowchart of the air conditioner of the present embodiment.

The operation of this embodiment will be described. Driving /
When the stop button 1f is pressed and the power is turned on, the power is turned on in step S22 according to the flow of FIG. 2, and at the same time, the self-diagnosis command is immediately activated, and the microcomputer 1d performs self-diagnosis of the main body in step S23. Then, the diagnosis result is set in step S.
At 24, it is transmitted to the remote controller. In this way, a special dedicated diagnostic switch (button) is prepared, and self-diagnosis is performed without pressing this switch.

Embodiment 2 FIG. Another embodiment of the present invention will be described. FIG. 3 is an external view of a wireless remote controller of the air conditioner. In the figure, 3a
Is an infrared light emitting diode for transmitting a signal to the indoor unit main body, 3c is an infrared receiver for receiving a signal from the indoor unit, 3d is a display for displaying the operation status of the indoor unit, 3e is an indoor unit main body "Start / stop"
"Stop" switch and "Set temperature up", "Set temperature down" switches for changing the set temperature of the indoor unit body, 3
f is a microcomputer for determining the signal content of the indoor unit.

The operation of this embodiment will be described. The start / stop button 3e of the remote controller in FIG. 3 is pressed, and step S2 in FIG.
When a is performed, the operation signal and the accident diagnosis request signal are transmitted from the infrared light emitting diode 3b on the remote controller side to the indoor unit main body in step S2b. In the main body 1a, the receiver 1b
In step S22, the self-diagnosis command is activated immediately when the indoor unit is turned on, and in step S23, the microcomputer 1d performs self-diagnosis of the main body. Then, the diagnostic result is transmitted to the remote controller in step S24 by the infrared light emitting diode 1c. On the remote control side, the received signal is received by the infrared receiver 3c in step S2c, the received code is analyzed by the microcomputer 3f in step S2d, and the content is displayed in step S2e or step S2f. In this way, a special dedicated diagnostic switch (button) is prepared, and self-diagnosis is performed without pressing this switch.

Embodiment 3 FIG. Starting the self-diagnosis at the same time by pressing the switch with the highest frequency of operation does not require a dedicated diagnostic push button. It may not be necessary to do so often. Therefore, an example in which self-diagnosis is skipped will be described. In this embodiment, the microcomputer is stored in advance in the microcomputer to skip the self-diagnosis by pressing a combination of specific switches on the remote controller side, for example, simultaneously pressing up and down the set temperature. In this embodiment, "automatic operation" is set as a switch with a high operation frequency. Therefore, when the automatic operation is pressed, a self-diagnosis signal is transmitted at the same time. In the display of the operation status during the automatic operation, the “set temperature” during the automatic operation is displayed. In this embodiment, the main body has the configuration shown in FIG. 1 and the remote controller has the configuration shown in FIG. FIG. 4 is an operation flowchart showing the operation of this embodiment.

Next, the operation will be described. The operations of the respective components on the indoor unit main body and the remote controller side are the same as those in the second embodiment. Therefore, the following description will be made based on the operation flowchart, and the description of the hardware components will be omitted. First, in step S4a, when "automatic operation" of the operation switch 3e on the remote control side is pressed, it is determined in step S4b whether the skip stored in the microcomputer 3f at that time is set. As in Example 2, a self-diagnosis request signal is sent together with the automatic operation command signal. Further, a transmission request signal of the set temperature at the time of the automatic operation is transmitted. If skipping, only an automatic operation command signal and a set temperature transmission request signal are sent.

If the skip is not performed, the indoor unit body receives this in step S4e, enters the automatic operation mode in step S4f, and performs a self-diagnosis prior to the automatic operation. In the case of skipping, a signal is received in step S4h to enter the automatic operation mode. Next, as in the case where the self-diagnosis result indicates no failure, the code of the set temperature is sent to the remote controller in step 4i. On the remote control side, the received code is analyzed in step S4k. If there is a failure, the contents are displayed in steps S4m and S4n. If there is no failure, the "set temperature" during automatic operation is displayed in step S41.

Embodiment 4 FIG. An example will be described in which an operation caused by pressing a switch frequently operated continues. This further enhances operability. In this embodiment, an example in which the subsequent operation differs depending on the operation mode will be described. The indoor unit body and the remote controller are the same as those in the above embodiment. Therefore, the description of the operation of the hardware components will be omitted. FIG. 5 is a flowchart illustrating the operation of the present embodiment. In the figure, the switch that is frequently operated is a power-on / release switch of “run / stop”. Step S
The operations from 5a to step S5e are almost the same as those in the second and third embodiments, and therefore the description is omitted. If there is no failure, the operation mode is checked in step S5f. In the automatic operation mode, the "set temperature" is transmitted in step S5g. In the manual operation, in this case, the "room temperature" measured in step S5h is transmitted. If there is no failure, the receiving remote controller displays "set temperature" or "room temperature" of the measurement result in steps S5k and S51.

Embodiment 5 FIG. In the fourth embodiment, the display at the time of manual operation is actually measured “indoor temperature”, but this can be changed by operation, and the actual measured “outdoor temperature”
It may be.

Embodiment 6 FIG. In the above embodiment, the self-diagnosis of the indoor unit main body triggered by pressing of a frequently operated switch is described. However, an example in which the transmission system between the indoor unit main body and the remote controller is also diagnosed will be described. Prior to driving, it is checked simultaneously that the remote control function has been reduced due to a decrease in the output of the battery, a decrease in the capability of the infrared transmission / reception system, or an increase in the distance. Indoor unit body,
Since the configuration of the remote control is the same as that of the above example, the description of the hardware operation is omitted. FIG. 6 is a flowchart for explaining the operation of this embodiment. Note that the switch with a high operation frequency in this example is a “run / stop” button.

When the "run / stop" switch is depressed in step S6a, a remote function check code is transmitted together with a power-on signal and a self-diagnosis request signal in step S6b. On the main body side, in addition to the same steps as in the other embodiments, the remote function check code is analyzed in step S6f, for example, a checksum is calculated, and if the self-diagnosis result is normal, the result is transmitted to the remote control side in step S6g. I do. The remote controller can determine whether the transmission system is normal or abnormal from the reception result in step S6j.
To show it.

Embodiment 7 FIG. In the above embodiment, the necessary request signal is sent from the remote controller side, but it is assumed that only a normal single signal such as power-on is transmitted, and the received power-on signal is received on the indoor unit main body side, A series of operations may be performed as a self-diagnosis signal. However, the skip function stored only on the remote controller side is transmitted from the remote controller side.

Embodiment 8 FIG. The above embodiments can be implemented in combination without overlapping. For example, a skip function and an automatic / manual operation mode determination mechanism may be performed simultaneously.

[0029]

As described above, according to the present invention, the self-diagnosis is performed simultaneously with one switch having a high operation frequency, so that the device can be diagnosed with certainty. According to the invention of claim 2, since the normal operation is displayed if the diagnosis result is normal, there is an effect that the operation can be shifted to the normal operation immediately after the diagnosis without burdening the operator. According to the third aspect of the invention, if the diagnosis result is normal, a display corresponding to the operating state is further displayed, so that there is an effect that the operator need not be conscious of the diagnosis at all. According to the invention of claim 4, there is an effect that the transmission system between the main body and the remote controller can be checked at the same time. According to the invention of claim 5, there is an effect that the operation can be further selected as needed, and the time until the operation can be shortened.

[Brief description of the drawings]

FIG. 1 is an external view of a main body of an indoor unit of an air conditioner.

FIG. 2 is an operation flowchart of the air conditioner of one embodiment of the present invention.

FIG. 3 is an external view of a remote controller according to one embodiment of the present invention.

FIG. 4 is an operation flowchart of an air conditioner according to a third embodiment.

FIG. 5 is an operation flowchart of an air conditioner according to a fourth embodiment.

FIG. 6 is an operation flowchart of an air conditioner according to a sixth embodiment.

FIG. 7 is a diagram showing an operation flowchart and an example of an expression of the conventional air conditioner.

[Explanation of symbols]

1a Indoor unit of air conditioner 1b Infrared receiver 1c Infrared light emitting diode 1d Microcomputer 1e Thermistor S2a Power (run / stop) button depressing step S2b Run command, diagnostic request signal transmitting step S21 Power (run / stop) button depressing step S22 Receiving operation command and diagnosis request signal S23 Self-diagnosis step S24 Diagnosis result transmission step 3a Wireless remote control main unit 3b Infrared light emitting diode 3c Infrared receiver 3d LCD display 3e Operation switch 3f Microcomputer S4a Automatic operation button pressing step S4b Skip setting inspection step S4c Automatic operation command, diagnosis request, set temperature transmission request signal transmission step S4d Automatic operation command, set temperature transmission request signal transmission step S5f Automatic operation mode detection Step S5g Set temperature transmission step S5h Measurement room temperature transmission step S6a Operation / stop button pressing step S6b Operation command, diagnosis request: Remote function check code transmission step S6f Remote function check code analysis step S6g Remote function check code analysis result transmission step

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-80151 (JP, A) JP-A-61-282112 (JP, A) Jikai Sho 62-109024 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) F24F 11/02

Claims (5)

(57) [Claims] 1. A microcomputer (hereinafter a microcomputer)
And a remote controller (hereinafter referred to as “remote controller”) for remotely controlling the operation of the air conditioner,
A self-diagnosis means provided on the main body and performing self-diagnosis of the main body; and a switch provided on the remote controller or the main body and frequently operating the main body. A switch having a function of activating the self-diagnosis means in addition to the main body operation operation function; and a display device provided on the remote controller and displaying a diagnosis result of the self-diagnosis means. Air conditioner with self-diagnosis display device. 2. The self-diagnosis means, if the self-diagnosis result is not normal, displays the malfunction result.
2. The air conditioner with a self-diagnosis display device according to claim 1, wherein the operating condition of the main body is displayed when the condition is normal. 3. The display device displays a failure result when a self-diagnosis result of the self-diagnosis means is not normal,
2. The self-diagnosis display device according to claim 1, wherein when the operation mode is normal, the set temperature is displayed when the operation mode is the automatic operation, and the operation state of the main body is displayed when the operation mode is the manual operation. Air conditioner. 4. When the one switch on the remote controller side is turned on, a remote function check signal is further added and transmitted to the main body side, and the received main body side compares the result with a normal signal and compares the result with the remote control side. The air conditioner with a self-diagnosis display device according to claim 1, wherein the air conditioner is transmitted to the side. 5. A trigger for the self-diagnosis means which is activated by operation of the one frequently operated switch is stopped by a setting switch different from the one frequently operated switch, and the self-diagnosis operation is skipped. The air conditioner with a self-diagnosis display device according to claim 1, wherein: