JPH0838352A - Electric cooker - Google Patents

Abstract

PURPOSE:To provide an electric cooker by which the time of the function reduction of expendable parts can be reported to a user. CONSTITUTION:A storage means 6 composed of a non-volatile element stores the real use time of a heater 2 of the electric cooker and each time the electric cooker is used, this stored time is reloaded by a timer means 7a/adding means 8 and defined as cumulative use time. When this cumulative use time reaches the time previously set by the user, a comparing means 9 displays this time on a display means 10 and calls the attention of the user.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an electric cooker.

[0002]

2. Description of the Related Art In recent years, with the widespread use of integrated circuits such as microcomputers (hereinafter referred to as microcomputers), electric cookers using these microcomputers have been produced. In such an electric cooker, by processing the data by the detecting means such as the temperature detecting element and the weight sensor, it is possible to perform fine automatic cooking which has never been done before.

[0003]

The electric cooker having the above-mentioned conventional structure is mounted on the electric cooker when the cooking is completed and the plug of the electric cooker is unplugged from the outlet for connecting to the commercial power source. The data accumulated by the existing microcomputer is deleted. Therefore, it is difficult to inform the user of consumable parts such as heaters and relays before these parts deteriorate in function.
That is, the electric cooker having the conventional configuration has a problem that it is difficult to notify when the function of the consumable component is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional structure, and it is a first object of the present invention to provide an electric cooker capable of informing the user of the time when the function of consumable parts deteriorates. I am trying. Moreover, it is the 2nd-4th objective to provide the 2nd-4th means for achieving the said 1st objective.

[0005]

The first means of the present invention for achieving the first object is a heater for heating a food, a driving means for controlling ON / OFF of the output of the heater, and a driving means. A driving start means for starting the driving of the heater, a timer means for counting the usage time of the heater by the output of the driving start means, an addition means for adding the usage time counted by the timer means, and a memory composed of nonvolatile elements. Means for comparing the output of the adding means with a preset predetermined value, and a display means for receiving the output of the comparing means and displaying that the usage time of the heater has reached a predetermined value, The adding means is an electric cooker that calls the stored value of the cumulative use time held by the storage means, adds the use times, and stores the added cumulative use time in the storage means.

A second means of the present invention for achieving the second object is, in particular, an electric cooker in which the timer means is a counting means for counting the number of times the driving means is driven.

The third means of the present invention for achieving the third object is a deodorizing means for decomposing and absorbing the smell or smoke generated during cooking by the heater constituting the first means of the present invention. It is an electric cooker.

Further, a fourth means of the present invention for achieving the fourth object is a heater for heating a food, a driving means for controlling ON / OFF of an output of the heater, and a driving of the driving means. A drive start means, a timer means for measuring the usage time of the heater by the output of the drive start means, a counting means for counting the number of times the drive means is driven by the output of the drive start means, and a heater usage time Of the memory value and the number of times of driving of the driving means are stored as a second memory value, and the memory means composed of a readable and writable nonvolatile element, and the first and second memory values are read out to obtain the first memory value. The time obtained by adding the energization time of the heater counted by the timer means and the number of times the driving number of the driving means counted by the counting means is added to the second stored value are respectively added, and the additions thereof are made. To the storage means, a first comparing means that operates when the first output of the adding means becomes a constant value, and a second comparison that operates when the second output of the adding means becomes a constant value. Means and a display means for receiving the output of the first and second comparing means and displaying that the energizing time of the heater or the number of times of driving of the driving means has reached a predetermined value, the energizing time of the heater Alternatively, the electric cooker is provided with drive stopping means for stopping the driving of the heater when at least one of the driving times of the driving means reaches a predetermined value.

[0009]

According to the first means of the present invention, the storage means constituted by the non-volatile element stores the actual use time of the heater of the electric cooker, and the stored time is electrocooked by the timer means / adding means. It is rewritten each time the device is used to make it the cumulative usage time. When this accumulated usage time reaches a preset time, this is displayed on the display means,
It is intended to draw the user's attention.

According to a second means of the present invention, the storage means composed of a non-volatile element stores the number of times the drive means for turning on and off the heater of the electric cooker is turned on and off. It is rewritten each time the electric cooker is used by the means, and is used as the cumulative number of times of use. When the cumulative number of times of use reaches a preset number of times, this is displayed on the display means to call the user's attention.

According to the third means of the present invention, the storage means composed of a non-volatile element stores the actual use time of the deodorizing means for deodorizing the odor generated from the cooked food, and this storage time is counted by a timer. Each time the electric cooker is used by the means and the adding means, the electric cooker is rewritten to obtain the cumulative use time. When the accumulated use time reaches a preset time, the accumulated use time is displayed on the display means to call the user's attention.

Further, according to a fourth aspect of the present invention, when either the cumulative usage time of the heater or the cumulative number of times of the driving means reaches a predetermined value, the driving stopping means operates to stop the driving of the heater. It acts as if to do.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) In FIG. 1, reference numeral 2 is a heater for heating a cooking product built in an electric cooker body 1. The heater 2 is controlled by the control circuit 3. The control circuit 3 is composed of a microcomputer 3a, a driving means 4 such as a relay for turning on / off the power supply to the heater 2 in response to a control signal from the microcomputer 3a, and a nonvolatile element readable / writable by a program in the microcomputer 3a. And means 6. Further, the microcomputer 3a receives a signal from the drive starting means 5 such as a start switch, and receives a timer means 7a for measuring the energization time of the heater 2 driven by the driving means 4, and a time measuring signal of the timer means 7a. Addition means 8 for calculating this total time each time
And a comparing means 9 for comparing the output of the adding means 8 with a preset predetermined time and sending a display signal to the display means 10 when the output of the adding means 8 reaches the predetermined time. There is. The adding means 8 calls the stored value of the cumulative use time stored in the storage means 6, adds the total time, and stores it in the storage means 6 as a new cumulative use time.

The operation of this embodiment will be described below. When the user presses the drive starting means 5 composed of a start switch or the like, the main body 1 starts operating. The microcomputer 3a outputs a signal for driving the heater 2 to the driving means 4, and the driving means 4
Controls on / off of power supply to the heater 2. Heater 2
Cooking of the cooked food progresses due to the heat generated by, and the cooking ends when a predetermined time elapses.

At this time, the timer means 7a counts the total ON time of the driving means 4 from the moment when the signal of the driving start means 5 is received to the end of cooking. That is,
The total time during which the heater 2 is energized is measured. The timer means 7a sends this total time data to the adding means 8. Upon receiving this data, the adding means 8 reads the data of the cumulative energization time of the heater 2 stored in the storage means 6 composed of a non-volatile element,
A time obtained by adding the total time received from the timer means 7a to this is stored in the storage means 6 as a new cumulative usage time, and is simultaneously sent to the comparison means 9.

By repeating this series of operations,
The storage means 6 always stores the total time of the energization times of the heater 2 so far. Further, in the present embodiment, since the non-volatile element is used as the storage means 6, even if the plug is unplugged from the outlet for connecting to the commercial power source after the occurrence of a power failure or the completion of cooking, the stored data is lost. There is nothing.

Further, when the comparison means 9 receives the data of the total usage time from the addition means 8, the comparison means 9 compares the preset data of the limit usage time at which the function of the heater 2 deteriorates with the data of the total usage time. Then, when they match, the display means 10
To display a predetermined display. That is, the display means 10
Indicates that it is time to replace the heater 2. The user can take necessary measures by seeing this display.

In this embodiment, the storage means 6 is provided separately from the microcomputer 3a, but if it is built in the microcomputer 3a, the same effect can be obtained and the number of parts can be reduced. Is. Further, although the target to be clocked by the timer means 7a is the energization time of the heater 2, in particular the heater 2
It is not limited to the above, but any consumable part that causes a problem of energization time may be used.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the counting means 7b is used instead of the timer means used in the above-mentioned (Embodiment 1). That is, the count means 7b counts the number of on / off drive times of the drive means 4 constituted by a relay or the like when receiving the signal of the drive start means 5. The structure other than the above is almost the same as that of the first embodiment, and the description thereof is omitted.

The operation of this embodiment will be described below. When the user presses the drive starting means 5 composed of a start switch or the like, the microcomputer 3a starts driving, the heater 2 is energized, and cooking proceeds. The counting means 7b starts counting the number of times the driving means 14 is turned on and off at the same time it receives the signal from the driving start means 5, and continues this counting until cooking is completed. The signal from the counting means 7b is transmitted to the adding means 8, the storage means 6, and the comparing means 9 as in the case of the first embodiment.

The adding means 8 reads the cumulative number of times of ON / OFF driving of the driving means 14 stored in the storage means 6, adds the count value of the number of ON / OFF times counted this time, and adds a new cumulative number of times of use. This data is stored in the storage means 6 and is sent to the comparison means 9 at the same time. The comparison means 9 receives this data and sets the preset drive means 1
When compared with the limit number of times of use, which is the limit value of 4, when the numbers match, a predetermined display signal is sent to the display means 10. In other words, the display means 10 displays that the replacement time of the drive means 14 has come. The user can take necessary measures by seeing this display.

In the present embodiment as well, a non-volatile element is used for the storage means 6, so that the stored data will not be lost due to the attachment / detachment of the plug or the power failure.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. In the present embodiment, the main body 1 is provided with a deodorizing means 14 for deodorizing and deodorizing odors, smoke, etc. generated from the food during cooking. The odor / smoke generated from the cooked matter is sent to the deodorizing means 14 by the fan 13 driven by the electric motor 12. Further, the drive means 4 drives the electric motor 12.

The operation of this embodiment will be described below. When the user presses the drive starting means 5, the heater 2 (not shown) is energized to proceed with cooking. At the same time, the driving means 4 drives the electric motor 12 and the fan 13 rotates to send the odor and smoke generated from the cooked food to the deodorizing means 14. The deodorizing means 14 acts so as to deodorize and deodorize this odor / smoke so that the odor or smoke generated from the cooking product does not leak to the outside of the main body 1 and the odor or smoke does not remain inside the main body. .

Here, the timer means 7a measures the ON time of the driving means 4 from the time when the signal from the driving start means 5 is received until the cooking is completed. That is,
The usage time of the deodorizing means 14 represented by the operation time of the electric motor 12 is timed. This timer means 7a
Is transmitted to the adding means 8, the storing means 6, and the comparing means 9.

Therefore, according to the present embodiment, the display means 1
0 can display the use limit time of the deodorizing means 14, and the user can replace the deodorizing means 14 by seeing this display.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. In this embodiment, the microcomputer 3a includes a timer means 7a, a counting means 7b, an adding means 8, a first comparing means 9a and a second comparing means 9b. The timer means 7a measures the energization time of the heater 2 through the ON time of the driving means 4. The counting means 7b counts the number of times the driving means 4 is driven on and off. The adding means 8 reads the cumulative time of the energization time and the cumulative number of ON / OFF driving times stored in the storage means 6, and the timer means 7a.
The output of the counting means 7b is added and stored again in the storage means 6 as a new cumulative time / new cumulative number, and at the same time, the cumulative time data is stored in the first comparing means 9a and the cumulative count data is stored in the second comparing data. It is output to the means 9b. The first comparing means 9a, if the accumulated time data reaches a predetermined time, the display means 10 and the drive stopping means 15
It sends a predetermined signal to and. Further, the second comparing means 9b, if the data of the cumulative number of times matches the predetermined number of times,
A predetermined signal is sent to the display means 10 and the drive stopping means 15.

The drive stopping means 15 receives this signal and
The driving of the heater 2 is stopped when at least one of the energization time of the heater 2 and the number of times of driving the driving means 4 reaches a predetermined value.

The operation of this embodiment will be described below. When the driving start means 5 is pushed, the timer means 7a measures the energization time of the heater 2 and the counting means 7b drives the driving means 4
Counts the number of times the drive is turned on and off. This signal is transmitted to the addition means 8, and the addition means 8 uses the stored values stored in the storage means 6 to calculate the cumulative usage time and the cumulative number of times of use, and respectively calculates the first comparison means 9a and the first comparison means 9a. It outputs to the second comparing means 9b. The first comparing means 9a and the second comparing means 9b receive the data and compare them with a predetermined time and a predetermined number of times, respectively, and at the stage of coincidence, the drive stopping means 15
And outputs a predetermined signal to the display means 10. Upon receiving this signal, the drive stopping means 15 stops driving the heater 2 when at least one of the energization time of the heater 2 and the number of times of driving of the driving means 4 reaches a predetermined value. Further, the display means 10 executes a necessary display when receiving the signal.

As described above, according to the present embodiment, the driving of the heater 2 is stopped when at least one of the energization time of the heater 2 and the driving frequency of the driving means 4 reaches a predetermined value. It is intended to realize an electric cooker in which an unsafe situation does not occur.

[0032]

According to the first means of the present invention, a heater for heating food, a driving means for controlling ON / OFF of the output of the heater, a driving starting means for starting the driving of the driving means, and the heater Timer means for counting the usage time by the output of the drive starting means, addition means for adding the usage time counted by the timer means, storage means constituted by a non-volatile element, and a predetermined output value of the addition means. The addition means includes a comparison means for comparing with a value and a display means for receiving the output of the comparison means and displaying that the usage time of the heater has reached a predetermined value, and the addition means stores the accumulated usage time of the storage means. A value is called, the above-mentioned usage time is added, and a new accumulated usage time is stored in this storage means, so that the user can be notified of the time when the function of the heater, which is a consumable component, deteriorates. It realizes the cooker.

In the second means of the present invention, in particular, the timer means constituting the first means of the present invention is configured as a counting means for counting the number of times of driving of the driving means, and the number of times of ON / OFF driving is a problem. (EN) An electric cooker capable of notifying a user of the time when the function of a drive means, which is a component, deteriorates.

According to the third means of the present invention, in particular, the heater constituting the first means of the present invention is used as a deodorizing means for decomposing and absorbing odor or smoke generated during cooking, and is used for a long time. It is intended to realize an electric cooker capable of informing the user of the time when the function of the deodorizing means whose performance deteriorates is deteriorated.

The fourth means of the present invention is to use a heater for heating the food, a driving means for controlling the output of the heater on / off, a driving starting means for starting the driving of the driving means, and a usage time of the heater. Timer means for timing the output of the drive start means, counting means for counting the number of times the drive means is driven by the output of the drive start means,
A storage means composed of a readable and writable nonvolatile element that stores the usage time of the heater as the first stored value and the number of times the drive means is driven as the second stored value, and the first and second stored values are read out. , A time obtained by adding the energization time of the heater counted by the timer means to the first stored value and a number obtained by adding the number of times of driving of the driving means counted by the counting means to the second stored value are respectively added, An adding means that outputs the added value to the storage means, a first comparing means that operates when the first output of the adding means becomes a constant value, and a second operation that operates when the second output of the adding means becomes a constant value. Of the heater and the display means for receiving the output of the first and second comparing means and displaying that the energization time of the heater or the number of driving times of the driving means has reached a predetermined value. Energization time or drive means When at least one of the dynamic count has reached a predetermined value, a configuration in which a drive stop means for stopping the driving of the heater, is to realize that no electric cooker unsafe situation occurs.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electric cooker according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of the electric cooker according to the second embodiment.

FIG. 3 is a block diagram showing the configuration of the electric cooker according to the third embodiment.

FIG. 4 is a block diagram showing the configuration of the electric cooker according to the fourth embodiment.

[Explanation of symbols]

 2 heater 4 driving means 5 driving starting means 6 storage means 7a timer means 7b counting means 8 adding means 9 comparing means 9a first comparing means 9b second comparing means 10 display means 12 electric motor 13 fan 14 deodorizing means 15 driving stopping means

Claims (4)

[Claims] 1. A heater for heating a cooked food, a drive means for on / off controlling the output of the heater, a drive start means for starting the drive of the drive means, and an output of the drive start means for the usage time of the heater. Timer means for counting by, adding means for adding the use time counted by the timer means, storage means constituted by a non-volatile element, comparing means for comparing the output of the adding means with a predetermined value set in advance,
Display means for displaying that the operating time of the heater has reached a predetermined value in response to the output of the comparing means, and the adding means calls the stored value of the accumulated operating time held by the storing means, Is added and stored in this storage means as a new cumulative usage time. 2. The electric cooker according to claim 1, wherein the timer means is a counting means for counting the number of times the driving means is driven. 3. The electric cooker according to claim 1, wherein the heater is a deodorizing means for decomposing and absorbing odor or smoke generated during cooking. 4. A heater for heating cooked food, a driving means for controlling ON / OFF of an output of the heater, a driving starting means for starting driving of the driving means, and a usage time of the heater as an output of the driving starting means. Timer means for counting the time, the counting means for counting the number of times the driving means is driven by the output of the driving start means, the usage time of the heater as a first stored value, and the number of times the drive means has been driven as a second stored value. A storage means composed of a readable / writable non-volatile element, a time obtained by reading the first and second stored values, and adding the heater energization time counted by the timer means to the first stored value; And a number of times the driving number of the driving means counted by the counting means is added to each of the stored values and the added value is output to the storage means. Receiving the outputs of the first and second comparing means, a first comparing means that operates when the output of the constant value becomes a constant value, a second comparing means that operates when the second output of the adding means becomes a constant value. And a display means for displaying that the heater energization time or the driving frequency of the driving means has reached a predetermined value, and at least one of the heater energization time or the driving frequency of the driving means has reached a predetermined value. In some cases, an electric cooker comprising a drive stopping means for stopping the driving of the heater.