JPH06257839A - Displaying device for air conditioner - Google Patents

Abstract

PURPOSE:To assure a space for a displaying device of an air conditioner and provide a low cost of it by a method wherein an operation mode and a trouble diagnosis code are displayed through the same light emitting element. CONSTITUTION:There are provided a plurality of light emitting elements 1a to 7a and 1b to 7b arranged to enable Arabic numeral letters to be displayed and for displaying trouble diagnosis codes corresponding to Arabic numerical letters defined when the trouble diagnosis for an air conditioner is performed, and an operation mode displaying plate 2 for passing lights got from the light emitting elements 1a to 7g and 1b to 7b at the front surfaces of the light emitting elements 1a to 7a and 1b to 7b and during a normal operating time, at least one of a plurality of light emitting elements 1a to 7a and 1b to 7b is applied for operation and for displaying operation modes of the air conditioner such as operation, good-night and a timer operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for operating mode and failure diagnosis mode of an air conditioner.

[0002]

2. Description of the Related Art Conventionally, an air conditioner displays its operation mode by lighting a light emitting diode as shown in FIG. For example, when the air conditioner is operating, a method of turning on a light emitting diode beside the operation character is used.

On the other hand, a sophisticated microcomputer has come to be used for controlling an air conditioner, and self-diagnosis of a failure mode has become possible when the air conditioner fails. Although various methods of displaying the failure mode of the self-diagnosis have been devised, the most general method is as shown in FIG.
The fault diagnosis code is displayed by a so-called 7-segment display in which seven light emitting diodes are arranged so that they can be displayed in Arabic numerals. For example, the failure diagnosis code is determined in advance such that 01 is a sensor failure and 02 is a motor failure. If the diagnosis result is a motor failure, 02 is displayed.

[0004]

However, if a 7-segment display for fault diagnosis is provided separately from the operation mode display, a space for that is required. In recent years, air conditioners have become smaller, and it is very difficult to install a 7-segment display in a visible position. Further, the use of the 7-segment display exclusively for the fault diagnosis has a problem that the cost including the circuit for driving the display increases.

The present invention has been made to provide a display device of an air conditioner for solving the above problems.

[0006]

In order to solve the above problems, the present invention provides a plurality of light emitting elements arranged so that numbers can be displayed and the light of the light emitting elements is transmitted to operate an air conditioner. And an operation mode display plate for displaying a mode.

Further, the present invention comprises a plurality of light emitting elements arranged so that numbers can be displayed, and a freely openable / closable operation mode display plate for blocking the light of the light emitting elements. In addition, a light transmission port for transmitting the light of the light emitting element to display the operation mode is provided.

Furthermore, the present invention provides a plurality of light emitting devices.
The element uses a light emitting element capable of emitting light in a plurality of colors.
Further, the present invention uses a light emitting element that repeats an operation of continuously displaying a plurality of Arabic numerals at a fixed time when a failure mode is displayed.

[0009]

According to the present invention, with the above-mentioned structure, the operation mode and the failure diagnosis code are displayed by using the same light emitting element without deteriorating the design of the air conditioner, so that the space for the display device can be secured and the cost increase can be avoided. It will be one.

Further, by using the light emitting elements of a plurality of colors, it is possible to display a highly visible operating mode and a failure diagnosis code, and many kinds of failure diagnosis codes can be displayed with a small number of light emitting elements, which secures space and costs. Up avoidance will be done.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of claim 1 of the present invention will be described below with reference to the drawings. 1 is a front view of a display device for an air conditioner, and FIG. 2 is a schematic side view of the air conditioner. In FIG. 1, reference numeral 1 is a 7-segment display, 1a-7a, 1b-
The light emitting diode of 7b is configured to display a two-digit Arabic numeral. An operation mode display plate 2 is provided on the front surface of the 7-segment display 1, and the operation mode display plate 2 is made of a material that transmits the light of the light emitting diode and is in the operation mode of the air conditioner. , Good night, and Air clean are displayed corresponding to the positions of the light emitting diodes 1a, 4a, 1b, and 4b, respectively. Reference numeral 3 is an indoor unit body of the air conditioner.

During normal operation, when the air conditioner is operated, the light emitting diode 1a is turned on, and when the timer is set, the light emitting diode 4a is turned on to display the operating modes of operating and timer setting. The same is true when setting good night and clean air.

On the other hand, the failure diagnosis code corresponding to the failure condition of the air conditioner is predetermined, for example, 01 is a sensor failure and 02 is a motor failure.
If it is assumed that a motor failure is diagnosed during the failure diagnosis of the air conditioner, the light emitting diodes 1a, 2a, 3a, 5a, 6 will be described.
a, 7a and 1b, 3b, 4b, 5b, 7b light up,
02 is displayed.

As described above, 14 light emitting diodes 1a to 7a arranged so that the Arabic numerals can be displayed,
1b to 7b and the light emitting diodes 1a to 7a, 1b to
By providing the operation mode display plate 2 that transmits the light of 7b and displays the operation mode of the air conditioner, the operation mode is used during normal operation and the failure diagnosis is performed during failure diagnosis without using a special failure diagnosis indicator. The code can be displayed on the same display device.

The display of each operation mode and the light emitting diodes corresponding thereto can be freely selected, for example, as shown in FIG. 3, and as described above, the light emitting diodes 1a, 4a, 1
It is not limited to the positions of b and 4b.

Further, in this embodiment, the two-digit Arabic numeral is displayed by using 14 light emitting diodes, but this digit number may be one digit as shown in FIG. 4, for example, and can be freely selected. You can

A second embodiment of the present invention will be described below with reference to the drawings. Here, the same parts as those in the embodiment of claim 1 are designated by the same reference numerals and the description thereof will be omitted.

FIG. 5 is a perspective view of the display device of the air conditioner, and FIG.
Is a side view thereof. In FIG. 5, reference numeral 4 denotes an operation mode display plate, which is made of a material that blocks the light of the light emitting diodes 1a to 7a and has light transmission ports 41 to 44 for transmitting the light of the light emitting diodes 1a to 7a. Operation mode display board 4
Light shielding walls 41a to 44a are provided around the light transmitting ports 41 to 44 on the back surface of the device, if necessary. In addition, the operation mode display plate 4 includes the operation modes of the air conditioner, such as operation, timer, good night,
The letters "clean air" are the light transmission ports 41 to 4 respectively.
It is displayed corresponding to the position of 4. The operation mode display plate 4 is hinged to the indoor unit body 3 of the air conditioner and is used in a closed state during normal operation and in an open state during failure diagnosis.

During normal operation, the operation mode display plate 4 is closed, and when the air conditioner is operated, the light emitting diode 2
a lights up and the timer is set, the light emitting diode 5a
Lights up, and the respective lights pass through the light transmission ports 41 and 42 to display an operation mode in which the vehicle is operating and the timer is being set.
The same is true when setting good night and clean air.

On the other hand, the failure diagnosis code corresponding to the failure condition of the air conditioner is predetermined, for example, 1 is a sensor failure and 2 is a motor failure. At the time of failure diagnosis of the air conditioner, the operation mode display plate 4 is opened,
The segment display 1 becomes visible. If a motor failure is diagnosed here, the light emitting diodes 1a, 3
a, 4a, 5a, and 7a are turned on, and 2 is displayed.

As described above, the seven light-emitting diodes 1a to 7a are arranged so that the Arabic numerals can be displayed, and the openable / closable operation mode display plate 4 for blocking the light from the light-emitting diodes 1a to 7a. , The light transmission ports 41 through which the light of the light emitting diodes 1a to 7a is transmitted to the display plate 4.
By providing 44, the operation mode can be displayed during normal operation and the failure diagnosis code can be displayed on the same display device during failure diagnosis without using a special failure diagnosis indicator. Particularly, in this embodiment, the light transmission ports 41 to 41 on the back surface of the operation mode display plate 4 are
By providing the light shielding walls 41a to 44a around 44, if necessary, the light emitting diodes 2a, 3a, 5a, 6a
Since it is not necessary to strictly match the positions and shapes of the light transmission ports 41, 42, 43, 44, the design of the display part of the air conditioner is not restricted.

Incidentally, the correspondence between each operation mode display and the light emitting diode and the number of digits of the 7-segment display can be freely selected as in the first embodiment. Hereinafter, a first embodiment of claim 3 of the present invention will be described with reference to FIG.

In this embodiment, one light emitting diode has two elements.
Only the use of a two-color light emitting diode capable of emitting color light differs from the embodiments of claims 1 and 2. In FIG. 1, the light emitting diode 1a is a two-color light emitting diode of red and green,
The other light emitting diodes 2a to 7a and 1b to 7b are two-color light emitting diodes of yellow and green. When the normal operation mode is displayed, the operation is indicated by red light emission, and the timer, good night, and air cleaning are indicated by yellow light emission. On the other hand, when the failure diagnosis code is displayed, all the light emitting diodes 1a to 7a and 1b to 7b are caused to emit green light for display.

As described above, by using the two-color light emitting diode, the operation modes can be distinguished by color when the operation mode is displayed, and the same color can be displayed when the failure mode is displayed. In either case, the visibility can be improved. it can.

Next, a second embodiment of claim 3 of the present invention will be described. The 7-segment display 1 has a single digit as shown in FIG. 4, and the light emitting elements constituting the 7 segment display are seven red and green two-color light emitting diodes. According to this configuration, when the normal operation mode is displayed, it is possible to distinguish the display colors by various operation modes, such as displaying the operation with red light emission and the timer, good night, and air conditioning clean with green light emission. On the other hand, in the fault diagnosis code display, the number of fault diagnosis codes that can be displayed on the 7-segment display can be displayed by multiplying the combination of Arabic numerals and the color type, and more fault diagnosis codes can be displayed with fewer light emitting diodes. Becomes

In the first embodiment, the light emitting diode 1a for displaying the operation mode is a two-color light emitting diode of red and yellow, and the other light emitting diodes 2a to 7a and 1b to 7b are single color of yellow to indicate the failure mode. Is unified with yellow,
You can choose how to use colors.

An embodiment of claim 4 of the present invention will be described below with reference to FIG. Since the configuration of this embodiment is the same as that of the embodiment of claim 1 or 2, the description thereof will be omitted. Here, a 7-segment display 1 for displaying the failure diagnosis code
Is one digit. Now, at the time of failure diagnosis, it is determined that the failure diagnosis result is a failure of the motor, and the failure diagnosis code is 02. At this time, the 1-digit 7-segment display 1 shown in FIG.
After 0 is displayed for a certain period of time, 2 is displayed for a certain period of time, and then the display is erased for a certain period of time. The failure diagnosis code 02 is displayed by continuously repeating this series of operations.

By the above operation, it becomes possible to display the 2-digit failure diagnosis code by using the 1-digit 7-segment display 1. Furthermore, if necessary, the same method can be used to display a three-digit or more fault diagnosis code on the one-digit 7-segment display 1, which can dramatically increase the number of fault diagnosis codes that can be displayed. It will be possible.

In the present embodiment, the one-digit 7-segment display 1 is used to display a multi-digit failure diagnostic code. The diagnostic code may be displayed.

The fifth embodiment of the present invention will be described below with reference to FIG. The configuration of this embodiment is the same as that of the second embodiment of claim 3, and the description thereof is omitted. Also in this embodiment, when the normal operation mode is displayed, it is possible to distinguish the display colors by various operation modes, such as displaying the operation by red light emission and the timer, good night, and air cleaning by green light emission.

At the time of failure diagnosis, the result of the failure diagnosis is found to be a motor failure. For example, the failure diagnosis code is 02.
And At this time, the 1-digit 7-segment display 1 displays 0 in red for a certain period of time and then displays 2 in green for a certain period of time, as shown in FIG. The failure diagnosis code 02 is displayed by continuously repeating this series of operations.

With the above operation, the operation mode display can be distinguished by color during normal operation, and the two-digit failure diagnosis code can be displayed on the one-digit 7-segment display in the failure diagnosis mode. And cost reduction.

As in the fourth embodiment, a pattern for turning off the 7-segment display for a certain period of time may be added to this embodiment to display more failure diagnosis codes.
Further, although the 7-segment display 1 has one digit in this embodiment, it may have a plurality of digits.

[0034]

As described above, according to the present invention, a plurality of light emitting elements arranged so that numbers can be displayed and an operation mode display for transmitting the light of the light emitting elements and displaying the operation mode of the air conditioner. A plate is provided to display the operation mode by using at least a part of the plurality of light emitting elements during normal operation of the air conditioner, and display a number on the plurality of light emitting elements during failure diagnosis of the air conditioner. By displaying the failure diagnostic code, the light emitting element for displaying the operation mode and the light emitting element for displaying the failure diagnostic code can be used in common, and the space and cost of the display device can be saved.

Further, it is composed of a plurality of light emitting elements arranged so that numbers can be displayed and a material for blocking the light of the light emitting elements, and has a light transmission port for transmitting the light of the light emitting elements, which can be freely opened and closed. An operation mode display plate is provided, and during normal operation of the air conditioner, the operation mode display plate is closed and at least a part of the plurality of light emitting elements is used to display the operation mode to diagnose the failure of the air conditioner. At this time, the operation mode display plate is opened to display the numbers on the plurality of light emitting elements to display the failure diagnosis code, thereby displaying the operation mode display without restricting the design of the display part of the air conditioner. And the light emitting element for displaying the failure diagnosis code can be used as well, and it becomes possible to reduce the space of the display device, reduce the cost, and achieve the design.

Further, one light emitting element capable of emitting a plurality of colors can be used for a plurality of light emitting elements, and various operating mode displays during normal operation and a failure diagnosis code display during failure diagnosis can be displayed in different color combinations. With the configuration, it is possible to improve the visibility of various displays, display a large number of failure diagnostic codes with a small number of light emitting elements, and save the space and cost of the display device.

Further, by repeating the operation of continuously displaying a plurality of numbers at a constant time when the failure mode is displayed and displaying the failure diagnosis code as a character string of a plurality of numbers, many failure diagnoses can be performed with a small number of light emitting elements. The code can be displayed, and the space of the display device can be saved and the cost can be reduced.

Further, when the failure mode is displayed, the operation of continuously displaying a plurality of numbers in different colors at regular time intervals is repeated, and the failure diagnosis code is displayed as a character string of a plurality of numbers in different colors, thereby making various displays. It is possible to improve the visibility and to display a large number of failure diagnostic codes with a small number of light emitting elements, thus saving the space and cost of the display device.

[Brief description of drawings]

FIG. 1 is a front view of a display device for an air conditioner according to an embodiment of claim 1 of the present invention.

FIG. 2 is a schematic side view of an air conditioner according to an embodiment of claim 1 of the present invention.

FIG. 3 is a front view showing another embodiment of the display device for an air conditioner according to claim 1 of the present invention.

FIG. 4 is a front view showing another embodiment of the display device for an air conditioner according to claim 1 of the present invention.

FIG. 5 is a perspective view of a display device for an air conditioner according to an embodiment of claim 2 of the present invention.

FIG. 6 is a partial front view of an air conditioner according to an embodiment of claim 2 of the present invention.

FIG. 7 is an operation explanatory view of a 7-segment display unit of the display device of the air conditioner in the embodiment of claim 4 of the present invention.

FIG. 8 is an operation explanatory diagram of a 7-segment display unit of the display device of the air conditioner in the embodiment of claim 5 of the present invention.

FIG. 9 is a front view showing a display device of a conventional air conditioner.

FIG. 10 is a front view showing a display example of a conventional failure diagnosis code of an air conditioner.

[Explanation of symbols]

 1 7-segment display 2 Operation mode display plate 3 Indoor unit of air conditioner 4 Operation mode display plate 1a to 7a Light emitting diode 1b to 7b Light emitting diode 41 to 44 Light transmitting port 41a to 44a Light shielding wall

Claims (5)

[Claims] 1. A plurality of light emitting elements which are arranged so that numbers can be displayed and which display a numerical failure diagnosis code determined at the time of failure diagnosis of an air conditioner, and light of the light emitting elements on the front surface of the light emitting element. And an operation mode display plate for displaying the operation mode of the air conditioner using at least a part of the plurality of light emitting elements during normal operation. 2. A plurality of light emitting elements which are arranged so that numbers can be displayed and which display a predetermined failure diagnostic code when a failure diagnosis of an air conditioner is provided, and a front surface of the light emitting element.
A display device for an air conditioner, comprising: an openable / closable operation mode display plate for blocking light of a light emitting element; and a light transmission port for transmitting the light of the light emitting element to display the operation mode on the operation mode display plate. 3. A light emitting element capable of emitting light of a plurality of colors by one element capable of displaying various operating mode displays during normal operation and failure diagnosis code display during failure diagnosis on a plurality of light emitting elements in different color combinations. The display device for an air conditioner according to claim 1 or 2. 4. A plurality of light-emitting elements for displaying a failure diagnostic code as a character string of a plurality of Arabic numerals by repeating an operation of continuously displaying a plurality of Arabic numerals at a fixed time when a failure mode is displayed. Item 1 or claim 2
Display device for the air conditioner described. 5. When a failure mode is displayed, the operation of continuously displaying a plurality of Arabic numerals in different colors at regular intervals is repeated to display a failure diagnosis code as a character string of Arabic numerals of different colors. The display device for an air conditioner according to claim 3, further comprising a light emitting element.