JP3041737B2 - Electric jar pot - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric jar pot mainly used in ordinary households.

[0002]

2. Description of the Related Art Conventionally, in electric jar pots, control of a heating step and a heat-retention step has been automated by using a microcomputer.

[0003] These conventional electric jar pots start heating immediately upon energization, and automatically maintain heat after boiling.

[0004] The electric jar pot has a status display such as a heating state and a heat retention state. However, when a power failure occurs, it is not known how long the power failure has occurred. Was. Therefore, when the electric jar is tried to be used again after the power failure, if water or hot water remains in the electric jar, it is unknown whether the water or hot water can be used or not, and its temperature is unknown.

[0005]

A problem with the conventional electric jar is that when a power failure occurs during energization, the time during which the power failure or the time at which the power failure started is unknown.
It was difficult to determine whether the water or hot water remaining in the pot could be used from outside the electric jar pot.
The present invention is intended to solve the problems of the conventional electric jar and provide a more convenient one.

[0006]

In order to solve the above-mentioned problems, an electric jar pot according to the present invention comprises a heating unit, an operation unit for inputting a heating start instruction, and a control unit for controlling the heating unit. Means, a state storage means for storing a state of the control means, an auxiliary power supply for supplying power to the state storage means, and a power failure timekeeping means for measuring a lapse of time from the start of power failure by the power of the auxiliary power supply. An electric jar pot having a display unit for displaying the elapsed time of the power failure measured by the power failure timer means and the state before the power failure of the control means by the state storage means when the power failure has started.

Further, the present invention can provide an electric jar pot which displays the time when the power failure started in place of the time since the power failure started by using clock means instead of the power failure time counting means. is there.

[0008]

According to the electric jar pot of the present invention, the state of the control means at the time of the start of the power failure is stored in the state storage means, and the time measured by the auxiliary power supply after the power failure and the state storage described above are stored. By displaying the state of the control means at the time of starting the power failure by the display means on the display unit, the user can be informed of the state of the water or hot water remaining in the electric jar.

[0009] When a capacitor or a secondary battery is used as an auxiliary power supply in this electric jar, it is sufficient to charge the electric jar while power is being supplied. Of course, when a primary battery is used as the auxiliary power supply, the power failure timer can be operated without being charged during energization.

When a clock means is provided in place of the power failure timekeeping means in this electric jar, the time when the power failure started is displayed on the display unit, and the state storage means controls when the power failure started. By means of the display of the means, the user can know the elapsed time from the start of the power failure from the current time and notify the state of the water or hot water remaining in the electric jar.

Further, by adding the temperature detecting means at the time of power failure to the electric jar pot of the present invention, the elapsed time from the start of the power failure by the power failure timekeeping means or the time when the power failure by the clock means is started, and the power failure is started. In addition to the state of the control means at the time, the hot water temperature at the start of the power outage is displayed on the display so that the user can be informed of the state of the water or hot water remaining in the electric jar, and is easy to use. Is a good one.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an electric jar pot according to an embodiment of the present invention will be described with reference to the drawings.

(Embodiment 1) In FIG. 1, 1 is a heating means constituted by a heater, 2 is an operation section for inputting an instruction to start heating, 3 is constituted by a microcomputer, and according to a program inputted in advance. Control means 4 for controlling the heating means 1 is a state storage means for storing the state of the control means 3 during heating or keeping the temperature, and 5 is stored in the state storage means 4 after being charged during energization and starting a power failure. An auxiliary power supply that supplies power. Reference numeral 6 denotes a power failure timer means for measuring the time elapsed after the start of the power failure due to the power of the auxiliary power supply 5. Reference numeral 7 denotes a time measured by the power failure timer means 6 and whether the control means 3 is heating or keeping warm when the power failure starts. This is a display unit that displays the contents of the middle heating state stored by the state storage unit 4.

The operation of the above configuration will be described.
When a start instruction is received from the user by the operation unit 2, the control means 3 controls the heating means 1 to start a heating step and start boiling water. The control means 3 performs a heating step while controlling the heating means 1 in accordance with the contents of a program inputted in advance, and shifts to a warming step when the hot water boils, thereby keeping the temperature of the hot water constant. This warming process is continuously performed as long as there is no power failure, and the state storage means 4 always stores the state of the control means 3. When there is a power failure, the power is supplied from the auxiliary power supply 5 charged during energization, and the time elapsed after the start of the power failure is measured by the power failure timer 6. Similarly, the power is supplied from the auxiliary power supply 5. In response to this, the state storage means 4 stores the state of the control means 3 such as heating and heat retention at the start of the power failure. The display unit 7 displays the power failure elapsed time measured by the power failure timer 6 and the heating state of the control unit 3 stored and held in the state storage unit 4. Therefore, the user can determine whether the state of the control means 4 at the time of the power failure is heating at the same time as the elapsed time from the start of the power failure, for example, 2 hours in FIG. Since it is possible to know whether the water is being kept warm or not, it is possible to know before the use from outside the electric jar pot whether or not the water or hot water remaining in the electric jar can be used.

(Embodiment 2) FIG. 2 is different from Embodiment 1 in that a clock means 8 for measuring the time is used in place of the power failure timekeeping means 6. The other means are the same as the means shown in the first embodiment, and therefore the same reference numerals are used and the detailed description is omitted. To explain the operation in this configuration, when a start instruction is given to the operation unit 2 as in the first embodiment, the control unit 3 performs a heating process while controlling the heating unit 1 in accordance with the contents of a program input in advance. When it boils, it shifts to the warming process and keeps the temperature of the hot water constant.
This warming process is performed continuously unless there is a power failure.

The clock means 8 keeps the current time. However, when a power failure occurs, the first time of the power failure measured by the clock means 8 is changed to the initial time of the power failure as shown in (b) of FIG. AM 1:10 is displayed on the display unit 7.

Therefore, the user can know from the display on the display unit 7 that the power failure has started at 1:10 am and determine whether the water or hot water remaining in the electric jar is usable. This can be detected by a display informing the state of the control means 3 at the start of the operation. Therefore, it is not necessary to open the lid of the hot water in the electric jar and pour the hot water for inspection, and the electric jar can be made easy to use.

(Embodiment 3) In FIG. 3, a difference from Embodiment 1 is that a primary battery or a secondary battery which is not charged is used as an auxiliary power supply for supplying power to the state storage means 4 after the start of power failure. This is a battery 9.

The operation in this configuration will be described. As in the first embodiment, when a start instruction is given by the operation unit 2, the control means 3 controls the heating means 1 to start a heating process and start boiling water. The control means 3 performs the heating step while controlling the heating means 1 in accordance with the contents of the program inputted in advance, and when the hot water boils, shifts to the warming step and keeps the temperature of the hot water constant. This warming process is performed continuously unless there is a power failure. The state storage means 4 always stores such a state of the control means 3. However, when there is a power failure, power is supplied from the battery 9 after the power failure is started, similarly to the first embodiment. The elapse of time is measured by the power failure timer 6. At the same time, the power supply from the battery 9 is received and the memory of the initial state of the power failure of the control means 3 is stored, and both are displayed on the display unit 7 for two hours, for example, as shown in FIG. And that a power failure occurred during heating. In the circuit means shown in the first and second embodiments, the energization time before the power failure is short and charging may not be performed sufficiently. In the third embodiment, however, a battery that does not need to be charged is used as the auxiliary power supply. , 2 have advantages that are not available.

(Embodiment 4) In FIG. 4, the difference from Embodiment 1 is that the power failure temperature detecting means 10 for detecting the temperature of hot water in the electric jar pot at the time of the start of the power failure is controlled by the control means 3 and the auxiliary power supply. The power failure temperature detecting means 10 is composed of a temperature sensing element and a circuit for detecting the temperature sensing element. The operation of the electric jar pot having the means of this configuration will be described.
Receiving power supply from the auxiliary power supply 5 charged during energization,
The time elapsed after the start of the power outage is measured by the power outage timing means 6, and similarly, the power is supplied from the auxiliary power supply 5, and the state storage means 4 starts the power outage of the control means 3, that is, ( As shown in (b), the storage of the state of heating is held and displayed on the display unit 7. At the same time, the temperature of the hot water is detected by the temperature detection unit 10 at the time of power failure, and the display unit 7 displays the temperature and the elapsed time of the power failure measured by the power failure timekeeping means 6 as shown in, for example, FIG.

Accordingly, in addition to the electric jar pot shown in the first embodiment, the user can indicate to the user the temperature of the hot water at the time of the start of the power failure by the power failure temperature detecting means 10 by the display unit 7. It is a more convenient electric jar. Note that electric jar pots usually adopt a heat insulation structure, so if the time has not passed so long after the power failure, the hot water temperature also does not drop so much when the power failure started Not to mention.

(Embodiment 5) In FIG. 5, the difference from Embodiment 4 is that the power failure timekeeping means 6 is replaced by a clock means 8 for measuring time. Therefore, when there is a power failure, the first time at the time of the power failure measured by the clock means 8 is supplied with power from the auxiliary power supply 5 charged during energization and displayed on the display unit 7 and the temperature at the time of the power failure is detected. 10 shows the temperature of the hot water detected by the control unit 10 and the heating state of the control unit 3 stored and held in the state storage unit 4 when a power failure occurs. Therefore, the first time when the power failure occurs, the temperature of the hot water at that time, and the state of the control means 3 can be known from the display on the display unit 7, and the state of the hot water in the electric jar can be detected without performing an internal inspection. Is what you can do.

[0023]

As can be seen from the above-described embodiment, according to the present invention, the state before the power failure of the control means at the time of the start of the power failure is stored in the state storage means, and the power failure time is measured by the auxiliary power supply. The elapsed time since the power outage by the means or the time when the power outage started is displayed on the display unit so that it is possible to externally detect whether the water or hot water remaining in the electric jar pot can be used or not. It has good advantages. The temperature at the time of the start of the power failure is displayed by the temperature detection means at the time of the power failure, which has the effect of further improving the usability.

[Brief description of the drawings]

FIG. 1A is a circuit block diagram of the electric jar in the first embodiment of the present invention. FIG. 1B is a plan view of the display unit and the operation unit.

2A is a circuit block diagram of an electric jar in Embodiment 2 of the present invention. FIG. 2B is a plan view of the display unit and the operation unit.

3A is a circuit block diagram of an electric jar in the third embodiment of the present invention. FIG. 3B is a plan view of the display unit and the operation unit.

FIG. 4A is a circuit block diagram of an electric jar in a fourth embodiment of the present invention. FIG. 4B is a plan view of the display unit and the operation unit.

FIG. 5 (a) A circuit block diagram of an electric jar in Embodiment 5 of the present invention (b) A plan view of the display unit and the operation unit

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heating means 2 Operation part 3 Control means 4 State storage means 5 Auxiliary power supply 6 Power failure timekeeping means 7 Display part 8 Clock means 9 Battery 10 Power failure temperature detection means

Continued on the front page (72) Inventor Kenji Takenaka 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. References JP-A-2-217721 (JP, A) JP-A-63-103818 (JP, U) JP-A-55-97590 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB Name) A47J 27/21 101

Claims (5)

(57) [Claims] And 1. A heating means, an operation unit for inputting an instruction to start heating, and control means for controlling the heating means, stop
State storage means for storing the state before the power failure of the control means at the start of power supply, an auxiliary power supply for supplying power to the state storage means, and time elapsing from the start of the power failure by the power of the auxiliary power supply. Power failure timer means, and the power failure elapsed time measured by the power failure timer means and when the power failure has started
A display unit for displaying the state before the power failure of the control means by the state storage means. 2. A heating means, an operation unit for inputting an instruction to start heating, and control means for controlling the heating means, stop
State storage means for storing a state before the power failure of the control means at the time of the start of power supply, an auxiliary power supply for supplying power to the state storage means, and a time when the power failure was started by the power of the auxiliary power supply. An electric jar pot comprising: a clock unit for performing the operation; and a display unit for displaying a power outage start time measured by the clock unit and a state before the power outage of the control unit by the state storage unit when the power outage starts . 3. A power failure temperature detecting means for detecting a temperature of hot water in the electric jar when the power failure is started by the power of the auxiliary power supply, and the display unit detects the temperature of the hot water in the electric jar pot. The electric jar pot according to claim 1 or 2, wherein the temperature is displayed together. 4. The electric jar pot according to claim 1, wherein the auxiliary power source is a power source that is charged during energization before starting a power failure. 5. The electric jar pot according to claim 1, wherein said auxiliary power source is a battery storing electric power.