JPH054194U - Failure display device for heating cooker - Google Patents

Abstract

(57) [Summary] [Purpose] The failure location of the cooker is notified by the color and blinking of the backlight that illuminates the liquid crystal display. [Structure] A liquid crystal display 2 for displaying the procedure and state of cooking and heating, and a backlight composed of a plurality of fluorescent tubes 1-1 and 1-2 that emit light of different colors to illuminate this display are provided. , Multiple failure caution points 5-A,
Failure detection circuit 4 for detecting occurrence of failures in 5-B and 5-C
When the failure detection circuit detects a failure, the display information such as the cooking procedure that was displayed on the LCD until then is displayed without being erased. A failure display device is configured with a control circuit that determines and blinks the color of the backlight according to the location, and the location of the failure including information such as the condition in which the cooker was used immediately before the failure occurred. Displayed useful information regarding quick repairs.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a failure display device for a cooking device having a liquid crystal display equipped with a backlight device.

[0002]

[Prior Art]

 In the past, when a failure occurred in this type of device, the cooking procedure and status display up to that point was erased, and instead failure information consisting of pictures and letters was displayed to notify the failure occurrence. It was

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional example, when a failure occurs, the cooking procedure and other displays previously displayed on the liquid crystal display are erased. It was difficult to obtain useful information related to the cause of the failure, such as whether it had been done. Further, because of that, there is a problem that it takes time to determine a repair method or the like.

[0004]

[Means for Solving the Problems]

 In a cooking device equipped with a liquid crystal display that displays cooking and heating procedures and status, and multiple backlights that emit different colors to illuminate this display A failure detection circuit that detects the occurrence, and when the failure detection circuit detects a failure, the display information such as the cooking procedure that was displayed on the liquid crystal display until then is displayed without being erased. In addition, the failure display device is configured with a control circuit that determines the emission color of the backlight according to the detected failure-needed portion and blinks the backlight.

[0005]

[Action]

 While the liquid crystal display is showing the failure due to the occurrence of the failure, the display device continues to display the previous state without erasing it. This makes it possible to read the status up to the occurrence of a failure from the display device. In addition, it is possible to easily visually identify the location of the failure by blinking the backlight of the color corresponding to the location of the failure.

[0006]

【Example】

 FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1-1 and 1-2 are fluorescent tubes serving as backlights for illumination, which are red and green, respectively. 2 is a liquid crystal display which is illuminated by the fluorescent tubes to display the cooking procedure and state, 3 is a control circuit which controls the fluorescent tubes 1-1 and 1-2 and the liquid crystal display 2, 4 is a failure detection circuit, 5 Is a point of caution for failure of the heating cooker whose failure is monitored by the failure detection circuit 4.

It should be noted that, in this embodiment, the failure-required points are described as three points, but the increase or decrease may be arbitrary. In that case, it is necessary to make it possible to illuminate the backlight with different colors according to the number of points requiring attention.

In the above-mentioned configuration, the failure detection circuit 4 constantly monitors the failure-required points 5, and when a failure occurs in any of the failure-required points 5-A, 5-B, and 5-C, the failure information is detected. The information is output to the control circuit 3. The control circuit 3 controls the fluorescent tubes 1-1 and 1-2 as shown in the flowchart of FIG. That is, for example, when the failure detection circuit 4 detects a failure of the location 5-A of the failure-requiring locations, the fluorescent tube 1-2 is turned off and only the red fluorescent tube 1-1 is blinked, and the liquid crystal display is displayed. Flash 2 in red. Similarly, when a failure at the location 5-C is detected, both of the fluorescent tubes 1-1 and 1-2 are blinked at the same time, and the liquid crystal display 2 is illuminated with the synthesized yellow blinking. This makes it possible to notify the user of the failure location.

[0009]

[Effect of the device]

 According to the present invention, when a failure occurs, the display of the display remains as it is. Since it is possible to recognize useful information about the location, it becomes possible to quickly carry out trouble repair.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart regarding the operation of an embodiment of the present invention.

[Explanation of symbols]

 1-1 Fluorescent tube (red) 1-2 Fluorescent tube (green) 2 Liquid crystal display 3 Control circuit 4 Failure detection circuit 5-A, 5-B, 5-C Failure required points

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Satoru Ozawa 3-1, Shinjuyo, Kashiwa-shi, Chiba 1

Claims (1)

[Claims for utility model registration] [Claim 1] Heating provided with a liquid crystal display for displaying cooking heating procedures and states and a plurality of backlights for illuminating the display, each of which emits a different color. In the cooking device, there are a plurality of points (5-A, 5-B, ...
..) The failure detection circuit (4) for detecting the failure occurrence, and when the failure detection circuit detects the failure occurrence, erases the display information such as the cooking procedure that has been displayed on the liquid crystal display until then. And a control circuit (3) for determining and flashing the color of light emitted by the backlights (1-1, 1-2, ...) According to the detected failure-needed portion, Malfunction display device for heating cookers.