JPH0540830Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) This invention relates to an electric rice cooker equipped with a display section that displays the current time, timer setting time, etc.

(Prior art) In an electric rice cooker equipped with a timer, a display section is provided on the outside of the main body, and the display section displays the current time using a digital or analog method, for example, when the timer is set, and when the timer is set, the set time. Furthermore, when the timer is activated, the remaining operating time is displayed in sequence. When an abnormality occurs in the rice cooker due to a disconnection of the heater or a failure of the temperature sensor, an abnormality display such as ``OFF'', ``E (error)'', or other symbols is displayed on the display section.

(Problem to be solved by the invention) However, even if an abnormality is displayed on the display in this way, there is no way of knowing in which system part of the rice cooker the abnormality has occurred, and the subsequent There was a problem with the treatment that made me confused.

This invention was made with attention to these points, and an object of the present invention is to provide an electric rice cooker that can estimate through the display section the system in which the abnormality occurred when an abnormality occurs. The purpose is to

(Function) When an abnormality occurs, it is detected and notified, and the temperature value of the outer bottom portion of the inner pot detected by the temperature detector is displayed on the display section. If the temperature value is, for example, an abnormal temperature of "180", it can be estimated that an abnormality has occurred in the heating system. Further, if the temperature value displayed on the display section is a normal temperature, it can be estimated that an abnormality has occurred in a part other than the heating system.

(Example) An example of this invention will be described below with reference to the drawings.

In the figure, 1 is the main body of the rice cooker, a heater 2 and a temperature detector 3 are provided at the inner bottom of the main body 1, and a lid 4 is rotatably attached to the upper end of the main body 1.
An inner lid 5 is detachably attached to the inner surface of the lid 4.

Reference numeral 6 denotes an inner pot that can be inserted into and removed from the main body 1. During rice cooking, a predetermined amount of rice and water are stored in the inner pot 6, the inner pot 6 is inserted into the main body 1, and the lid 4 is closed. Then, the opening of the inner pot 6 is closed with the inner lid 5, and in this state, the heater 2 is energized to heat the inner pot 6 and cook rice.

A temperature fuse 7 is disposed on the inner periphery of the main body 1, and this temperature fuse 7 is activated and fused when the temperature of the outer bottom portion of the inner pot 6 reaches an abnormal temperature rise, for example, 188°C. It is set.

Further, an operation panel 9 is provided on the outer side of the front side of the main body 1, and a menu button 10, a rice cooking button 11, a cancel button 12, a timer button 13, and time setting buttons 14 and 15 are arranged on this operation panel 9. Furthermore, a digital display section 16 using, for example, a liquid crystal is provided.

The configuration of the electric circuit is shown in FIG. 4, and 20 is the main body 1.
This control means 20 is a control means built into the control means 20.
a heater control section 21, a current time display control section 22,
A timer time control section 23 and a temperature display control section 24 are provided. The various buttons 10 to 15 described above and the temperature sensor 3 are connected to the input section of the control means 20, and the heater 2 and the display section 16 are connected to the output section.

FIG. 5 shows the flow of control by the control means 20. In normal times, the current time display control section 22
The current time is displayed on the display section 16 under the control of
When the cooking time is set by operating the timer button 13 and the time setting button 14, the set time is displayed on the display section 16 in a flashing manner as shown in Figure 3a, and after the timer has started operating. The remaining time is displayed by lighting up as shown in FIG. 3b.

On the other hand, if an abnormality such as a disconnection of the heater 2, abnormal temperature detection, or abnormal temperature rise occurs, it is detected by the temperature detector 3, and the signal is input to the temperature display control section 24. 24, as shown in Figure 3c, for example, "E (error)" is displayed in the one's digit part (A section) of the "minute" unit on the display section 16, and this display indicates that an abnormality has occurred. will be notified. At the same time, the temperature sensor 3 is displayed on the display unit 16 in the tens place of the minute unit and in the one and tenth place of the hour unit (part B).
The temperature value of the outer bottom portion of the inner pot 6 detected by the controller is displayed. If the temperature value is, for example, an abnormal temperature of "180", it can be estimated that an abnormality has occurred in the heating system by the heater 2. Furthermore, if the temperature value displayed on the display unit 16 is, for example, "199", in such a case, the temperature fuse 7 is not functioning properly, and the temperature sensing system for the temperature fuse 7 and It can be inferred that some kind of abnormality has occurred in the energized system. Further, if the temperature value displayed on the display unit 16 is a normal temperature, it can be estimated that an abnormality has occurred in a part other than the heating system.

In addition, in the above-mentioned embodiment, the notification when an abnormality occurs and the inner pot 6 detected by the temperature detector 3 are provided.
The temperature of the outer bottom of the inner pot 6 is displayed through the display section 16, but only the temperature of the outer bottom of the inner pot 6 is displayed on the display section 16, and abnormality occurrence is notified by a separate LED or There is no problem in using a buzzer or the like.

[Effects of the invention] As explained above, according to this invention, when an abnormality occurs, it is possible to estimate in which system part of the rice cooker the abnormality occurred, and therefore, subsequent measures can be taken. It has the advantage of being able to be applied accurately.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, with Fig. 1 being a transparent perspective view of the rice cooker, Fig. 2 being a front view of the operation panel, Fig. 3 being a front view of the display section, and Fig. 4 being the configuration of the electric circuit. FIG. 5 is a flowchart showing the flow of control by the control means. 1...Main body, 3...Temperature detector, 6...Inner pot,
16...display section.

Claims (1)

[Scope of utility model registration request] The temperature at which the temperature of the outer bottom portion of the inner pot is detected in a device that has an inner pot that can be inserted and removed within the main body and a display section that displays the current time, timer setting time, etc. on the outside of the main body. Install a detector,
An electric rice cooker characterized in that when an abnormality occurs, the electric rice cooker notifies the user of the abnormality and displays the temperature of the outer bottom of the inner pot detected by the temperature detector via the display section.