JPS59109721A - Electric range - Google Patents

Abstract

PURPOSE:To save the total power consumption of an electric range and an external equipment connected to an exclusive plug socket thereof by a method wherein a current transformer is utilized as a detector of power supplying status and a relay is utilized as an automatic ON.OFF device. CONSTITUTION:When an equipment connected to an exclusive plug socket 18 is operated, a line 25 is supplied with current generating voltage in a current transformer 19 to actuate a thyristor 20 and when the thyristor 20 is actuated, a relay 21 is actuated to open a switch 22. While a heater 1 is operated, another switch 13 is closed to make a heating element 9 conductive and another relay 24 is actuated to open the other switch 23. Therefore when the heater 1 and an external equipment are simultaneously operated, both switches 22, 23 are opened and a heating element 10 will not be conductive even if another switch 14 is closed making another heater 2 unserviceable. When either the heater 1 or the external equipment is not operated at all, the heater 2 may be operated.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to stationary and built-in electric ranges used in general household kitchens.

Conventional Structure and Problems Conventionally, electric ranges of this type have 20 or 30 stoves, and some also have a roaster for grilling fish and the like. FIG. 1 shows a stationary electric range with 30 stoves and a roaster.

1.2.3 is a stove using a sheathed heater etc. installed on the top of the electric range, and 4 is a row heater installed in the front. 5, 6.7 are knobs for turning on and off the stove and adjusting the amount of electricity (on-off control by self-heating bimetal), and 8 is a knob for turning off the circuit between the heater of stove 3 and the heater of row heater 4 in the center of the two sides. This is the heater switching knob.

Figure 2 shows its electrical circuit diagram. 9 is the heater for stove 1 (2KW), 10 is the heater for stove 2 (1.5KW)
, 11 is a heater (1KW) for the stove 3, and 12 is a heater (soon) for the roaster 4. 13, 14.15
is power adjustment knob 6°6.70 on, off switch, 1
6 is a changeover switch for the heater changeover knob 8. AC power supply 17, a series circuit of heater 9 and switch 13,
A series circuit of the heater 10 and the switch 14 is connected to a series circuit of the heater 11 or the heater 12 and the switch 15 via the changeover switch 16, respectively.

The power consumption of the electric range as a whole is 4.00, unless the stove 3 and roaster 4 heater connections are switched off.
It will be 5 KW. Nowadays, many electrical appliances are used in ordinary households, and their power consumption is increasing considerably. Particularly in the kitchen, electric heaters such as open stoves and microwave ovens that consume more than 1.2 kW of power are increasingly being used, and electrical equipment such as electric ranges that consume a large amount of power of 4.5 kW are now being used. When installing a new kitchen, the electricity capacity of a typical household is insufficient, so it is necessary to increase the contracted capacity, and the increase in electricity capacity is insufficient! The burden of electricity charges will also increase. In order to reduce the power consumption per hour of electrical appliances in your home, prioritize the electrical appliances that consume the same amount of power, and when these appliances are used at the same time, There is a device called an auto selector that turns off the power to lower priority devices according to this priority order. This makes it possible to keep the maximum amount of power used within a certain limit and reduce the increase in contracted capacity. However, in the case of electric ranges used in the kitchen, compared to electric open stoves and microwave ovens used in the same place, the stove is used most frequently, and it is inconvenient to turn it off and leave it on. It is not possible to turn off the power by restricting the simultaneous use of electric appliances such as electric appliances and microwave ovens. Furthermore, electric ovens and microwave ovens automatically cook food using timers, etc., and it is impossible to turn off the electric cooking while they are in use. Furthermore, as mentioned above, the power consumption of an electric range is as high as 4.5 KW, and there is no single device with comparable power consumption, and there is no other device whose power source must be switched. Therefore, the method of simply turning off the power using a device such as the above-mentioned auto selector is not easy to use, and there is a problem in that it is impossible to properly limit the power supply.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and provides an electric range that reduces total power consumption in the kitchen and is easy to use.

Structure of the Invention The electric range of the present invention has a dedicated outlet for supplying power to an external device such as an electric open or a microwave oven, and a device for detecting the power supply status from this dedicated outlet and a stove inside the electric range. Alternatively, it has a device that stops the power supply to a specific heater in the electric range when the Rotor and an externally connected device are used at the same time. With this configuration υ,
If there is a certain level of power consumption due to the simultaneous use of an electric stove or rotor and an external device,
It is possible to turn off only a specific heater in an electric range and to enable simultaneous use of other heaters with external equipment. Therefore, for example, if the power consumption of an external device electric oven is 1.24KW, 30 electric range stoves are 2KW, 1.5KW, and IKW, and the electric open mode is used while all the stoves are in use, the power consumption is 1.5KW. Assuming that the stove is turned off, the total maximum power consumption of the electric open and electric range is suppressed to 4.5KW, and the total power consumption of the electric open and electric range is 5.74KW.
It is possible to cut power consumption by 1.24KW compared to the previous model.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In this embodiment, a Karen 1-1-lance is used as a device for detecting the power supply state from a dedicated outlet, and a relay is used as an automatic on/off device. Figure 4 shows the electrical circuit.

The same parts as in FIGS. 1 to 3 are designated by the same reference numerals. As in the conventional example, 9 is the heater for stove 1 (2KW), 10 is the heater for stove 2 (1,s K W), and 11 is the heater for stove 3.
heater (IKW), 12 is the heater of Rohnuta 4 (s
oon). 13°14.15 is the power amount adjustment knob 5. 6. 7 on.

An off switch 16 is a changeover switch for the heater changeover knob 8. The AC power supply 17 includes a series circuit of the heater 9 and the switch 13, a series circuit of the heater 10 and the switch 14 via the switches 23 and 22, and a series circuit of the heater 11 or the heater 12 and the switch via the changeover switch 16. 16 are connected in series with each other.

A relay 24 is connected in parallel with the heater 9.

The switch 23 is normally closed and is opened by the operation of the relay 24. 2o is a cyrisk, 21 is a relay, and a series circuit of the cyrisk 20 and the relay 21 is connected to an AC power source 60. The switch 22 is normally closed and is opened by the operation of the relay 21. 18 is a dedicated outlet, and 19 is a current transformer, which detects the current flowing through a line 25 connected to the dedicated outlet 18. The SIRISK 20 is brought into operation by the current generated in the current 1-tran 719.

The operation in the above configuration will be explained.

When a device connected to the dedicated outlet 18 is used, a current flows through the line 25 and a voltage is generated in the current transformer 19 to operate the Cyrisk 20. When the cyrisk 2o is activated, the relay 21 is activated and the switch 22 is opened. While the stove 1 is in use, the switch 13 is closed, the heater 9 is energized, the relay 24 is activated, and the switch 23 is opened.3 Therefore, when the stove 1 and external equipment are used at the same time, the switch 22 and 23 are both open, and even if the switch 14 is turned on, the heater 10 is not energized and the stove 2 cannot be used. When at least one of the stove 1 and the external device is not in use, the stove 2 can be used. As described above, by using the current transformer 19 as a power supply state detection device and using the relays 21 and 24 as automatic on/off devices, the connection between the electric range and the external device connected to its dedicated outlet 18 is established. - The power consumption of the external device can be reduced to match the power consumption of external equipment.

In this embodiment, power is turned off to the stove 2 in order to reduce power consumption, but the power supply is not limited to the stove 2, and the power to the stove 1 may be turned off.

FIG. 6 shows a circuit diagram of another embodiment of the present invention.

A current transformer 19, a relay 21, and a microcomputer 36 are used as a device for detecting the power supply state from the dedicated outlet 18, and a microcombi coater 36 and a triac 3-40 are used as devices for automatically turning on and off.
It uses

The basic function of the microcomputer in this embodiment is to process and respond to input signals related to which heater of the stove or rotor should be turned on or off, how much power should be consumed when it is turned on, and how much power should be consumed when it is turned on. It has the same function as a conventional electric range by sending a signal to the outside to turn on the heater for a predetermined period of time. Additional functions 1 to 1 read a signal that detects the state of power supply from the dedicated outlet 18 and turn off the stove or stove as necessary.

The circuit will be explained below. The same parts as in FIGS. 1 to 3 are designated by the same reference numerals.

The microcomputer 36 is a CPU and a ROM.

It is a so-called one-chip microcomputer consisting of RAM and a human output board.

The usage status of each heater is as follows: switches 27+ 28+ 29 for on/off for stoves 1 and 2.3, volumes 31, 32, 33 for adjusting the amount of electricity, switch 30 for on/off for the rotor 4, and switches 27+ 28+ 29 for adjusting the amount of electricity. The status signal from the volume 34 is read into the microcomputer 360 board via the A/D converter 35 to be judged and determined.

The on/off control and power amount control (on-off control) of each heater is performed by a control signal from an output port of the microcomputer 36. The control signal from the output port of the microcombi 1-Language nut 46
, 47, 49, and photocouplers 41, 42, 43.
．． A current is applied to the light emitting section 44. As a result, the light receiving parts of the photocouplers 41, 42, 43, and 44 operate, and data 1-
Current flows from the DC power supply 45 and the triac 37.38
．． 39° and 40 respectively become conductive, and heaters 9 and 1
It is energized at 0°11.12. Power can also be adjusted by controlling the energization time of the heater using a microcomputer according to the setting value of the power adjustment volume.

The state of power supply from the dedicated outlet 18 is determined by the signal from the current transformer 19. The switch 22 is normally closed and is opened by the relay 21. When an external device is used at the dedicated outlet 18, current flows through the line 25, and voltage is generated in the current transformer 19. As a result, the xylinuta 2o is turned on, the relay 21 is operated, and the switch 22 is opened. The input port of the microcomputer 360 changes from the ground voltage to +V, and the microcomputer 36 determines that power is being supplied from the dedicated computer 18 to the external device.

In the above configuration, if the microcomputer performs the processing shown in the flowchart shown in FIG. 6, the total power consumption of the electric range and the external equipment can be kept low. The flowchart will be explained below.

In step ■, when the dedicated outlet 18 is in use, the sirinuta 2-0 is turned on, and the relay 21 is activated and the switch 2
2 is closed and an input signal of voltage V is input to the input port of the microcomputer 36, step
Check the usage status of stove 1. Stove 1 in step ■
is in use, that is, if the microcomputer 36 is outputting an output signal that turns on the transinutor 46 in order to operate the triac 37, the dedicated outlet 18 and the stove 1 are being used at the same time.
In this case, in step (2), the heater 10 of the stove 2 is turned off. That is, in order to turn off the triac 38, the microcomputer 3
A signal is output from the output boat of 6. Therefore, it is impossible to use the external device and the three stoves 1 and 2 at the same time, and the total power consumption of the electric range and the external device can be kept low.

In each of the above embodiments, a current transformer is used.

Although examples using relays, microcomputers, etc. have been shown, the present invention is not limited to the above embodiments.

Effects of the Invention As is clear from the above embodiments, the electric range of the present invention requires a dedicated outlet for external equipment such as an electric oven or a microwave oven, and includes a device for detecting the power supply state from the dedicated outlet, and a stove. Alternatively, when the roaster and external equipment are used simultaneously, it has a device that automatically stops energization to a specific heater in conjunction with the above device, so that it can be used simultaneously between each heater in the electric range and the external equipment. By limiting what can be used, the total power consumption can be kept low, and the burden of electricity interest can be reduced.

[Brief explanation of drawings]

Fig. 1 is a plan view of a conventional electric range, Fig. 2 is a front view thereof, Fig. 3 is an electric circuit diagram thereof, Fig. 4 is an electric circuit diagram of an electric range showing an embodiment of the present invention, and Fig. 5 is a plan view of a conventional electric range. The figure is an electric circuit diagram showing another embodiment of the present invention, and FIG. 6 is a flowchart showing part of the processing functions when a microcomputer is used. 1+2+3...Stove, 4...Loin l;'-19°10.11...Stove heater,
12...Roaster heater, 18...
・Dedicated outlet, 19...- Karen l-1-lance, 20... Yamazairinuta, 21゜24...'
) V-122+ 23...Tune/Switch, 36...
...Microcomputer, 371 38. 39°40・・・Triac. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 4 Figure 2 Figure 3 Figure 4 Figure 6

Claims (1)

[Claims] A dedicated controller that connects external machines and heaters for multiple stoves and rotors, and turns on these heaters.
A device that detects the usage status of the dedicated outlet, and a device that automatically shuts off the power to a specific heater in conjunction with the device when the stove or stove and an external device are used at the same time. Electric range with.