JPS5853182A - Composite cooking device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite cooking device that integrates an induction cooking device and an electric stove.

Induction heating cookers are becoming more common in homes,
This induction heating cooker can only be used with cooking containers made of materials such as enamel or iron, so when using other cooking containers made of materials such as aluminum or ceramics, a Hiroden heater stove or gas stove is essential. Met. However,
It is common for kitchens to be equipped with not only induction heating cookers, but also electric heater stoves, gas stoves, etc., which is very inconvenient in terms of space occupied in small kitchens.

Therefore, a composite cooking device was developed in which an induction heating cooker and an electric heater conduit were vertically stacked and integrated, and the induction cooking device and electric heater conduit could be used freely as needed. and is being put into practical use.

By the way, in such a complex cooking device, an induction heating cooker performs cooking by driving an induction coil to high-frequency oscillation based on an on/off switching operation.
By changing the on/off period of the on/off switching operation, output control is performed. On the other hand, the output of the electric heater stove is controlled by switching the heater wiring. For this reason, each cooker requires a dedicated output control trench and circuit, which has the disadvantage of increasing costs. Furthermore, since there are multiple operation knobs, there is a risk of erroneous operation. Furthermore, since the output of the electric heater stove is controlled by switching the wiring connections, the output control is naturally limited depending on the number of wiring switching stages, making it difficult to obtain the optimum output for cooking.

This invention was made in view of the above circumstances,
The purpose of this is to make the output control knobs and circuits common for each cooker, which can significantly reduce costs, eliminate the risk of erroneous operation, and The object of the present invention is to provide a composite tone II device that enables optimal output control depending on the situation.

An embodiment of this am will be described below with reference to the drawings.

1 and 2, 1 is a main body, and this main body l
is the arrow A- with respect to the first casing 2 and the top surface of this first casing 2.
It consists of a second casing 3 which is pivotally mounted to be openable and closable in the A' direction.

An electric heater stove 4 having a heating section, for example, a spiral heater 4a, is provided on the top surface of the first housing 2, and an air outlet 5 and an air flow outlet 6 are provided at positions sandwiching the electric heater stove 4 in the front and rear. each formed. Dampers 7.8 are provided inside the wind outlet 5 and the wind flow outlet 6, respectively. When the second casing 3 is opened, the damper 7.8 comes into close contact with the air outlet 5 and the air flow 6 by the biasing force of a spring (not shown), and quickly cuts off the ventilation, and when the second casing 3 is closed. Sometimes the Dan/4 release claw 17 described later
When b and III come into contact with each other, it opens as shown in the figure against the biasing force of spring O, thereby forming a ventilation path. Further, an air suction port 9 is formed at the bottom of the front side of the first casing 2, and an air exhaust lower 10 is formed at the bottom of the back side.

Further, in the first housing 2, there is provided a control unit (k) 11 that controls the power supply to the electric heater stove 4 and the induction coil 14, which will be described later.
A cooling fan 12 is provided.

On the other hand, on the upper surface of the second casing S, a second heating section, for example, a dog gray (Ji) of an induction heating cooker, is provided, and an induction coil 14 is disposed in the second casing s corresponding to this dog gray) 13. It is set up. Further, a wind flow population 15 corresponding to the wind flow outlet 5 of the first housing 2 is formed on the front side bottom surface of the second housing 3, and a wind flow population 15 corresponding to the wind flow population 6 of the first housing 2 is formed on the back side bottom surface. An outlet 16 is formed.

Further, a dogleg-shaped lever 17 is rotatably supported at its substantially central portion on the inner front side of the second housing 3, and one end of this lever 17 passes through the front surface of the second housing J and extends as shown in the arrow. B-B
The handle 11m is movable in the force direction, and the other end penetrates through the bottom surface of the second housing 3 to form a mandrel opening claw 17b. This tongue/arm opening claw 17/b exists within the first housing 2 and opens the member 1 when the second housing 3 is closed. Furthermore, a protruding Dantsuk release claw 18 is formed on the bottom of the rear side of the second housing 3 near the air outlet 16.

The member opening claw 18 exists within the first housing 2 and opens the Dan's arm 8 when the second housing 3 is closed.

In addition, microswitches 19 and 20 are provided in the first housing 2 to detect the opening of the Dan/Mother 7 and 8, respectively. The power supply control mode for induction heating cooking and the power supply control mode for heater heating cooking by the electric heater stove 4 are switched. Furthermore, an operating section 2S having a power switch 21 and an output control knob 22 is provided on the front surface of the first housing 2.

! FIG. 3 is a block diagram specifically showing the control section 11. As shown in FIG. That is, the control unit 11 mainly includes a heater drive circuit 50 that drives the heater 4a with direct current on and off. The main control circuit 30 includes an output control circuit 31,
It consists of a tri-fA pulse generation circuit 32, a selection circuit SS, and a load detection circuit 34. The output control circuit 31 outputs an output control signal in response to the operation of the output control knob 22 on the operation section 23. The trigger pulse generation circuit 32 generates a trigger pulse with a period according to the output control signal.The 0 selection circuit 23 determines the usage status of the induction heating cooker and the electric heater stove by the operation of the switch 19 or 20. is detected, and depending on the detection result, either the induction coil drive circuit 40 or the heater drive circuit 50 is selectively operated, and the operation circuit is controlled by the tri-f/4 pulse generation circuit 32). It supplies IJ f/#rus. The load detection circuit 34 detects the operating state of the induction coil drive circuit 40 or the heater drive circuit 50.
The output of the output control circuit 31 and the output timing of the F trigger A pulse generation circuit 32 are controlled based on the detection result.

Here, FIG. 4 shows the drive circuit 40. This figure specifically shows the SO and its peripheral circuits. That is, 60 is a diode glitch rectifier circuit, the input end of which is connected to an AC power source 61 via the power switch 21, and the output end of which is connected to a smoothing capacitor 62. The drive circuits 4o and io and the main control circuit 30 are each connected in parallel to the smoothing capacitor 62. The drive circuits 40 and 50 are controlled by the main control @30VC and constitute an LC series resonant circuit.
and the heater 4m.

Next, the operation in the above configuration will be explained.

First, when performing induction heating cooking, the second housing 3 is closed, and a pot made of iron or enamel containing the food to be cooked is placed on the top grate 13. At this time, when the second housing 3 is closed, the dan t47 and g are opened, and the first housing 2
According to the book, a ventilation path is formed between and the second housing I.
Microswitches 19 and 20 are turned on. By setting the desired output using the output control knob 22, preparation for cooking is completed. ζ When the power switch 21 is turned on when preparation for cooking is completed, the control unit 11 enters the power supply control mode for induction heating cooking because the switch 19 is on. That is, in the drive circuit 40.50, the transistor 13 is turned off and the triac 74 is turned on, and in this state, the transistors 2 and 72 are turned on and off alternately and at high speed, so that the controller 75 is turned on. Charging and discharging are repeated, and high frequency oscillation is performed between the capacitor 75 and the induction coil 14. In this case, the ON and OFF cycles of F-range staff J and FJ are determined according to the output control knob XXO setting value. Further, the charging state of the capacitor rso is detected by the load detector 76, and this is fed back through the main control circuit 30 to the settings of the on/off periods of the transistors /1 and 7/2. In this way, induction heating cooking is performed with an output corresponding to the operation of the output console knob 21. In addition, the power switch.

When the switch 21 is turned on, the cooling fan 12 is activated, and the air sucked in from the air suction port 9 is supplied as cooling air to the control unit 11, and a part of the cooling air is supplied to the air flow population 5,
15 and is supplied to the induction coil 14. The cooling air that has passed through the induction coil 14 is energized through the air outlet 16 and the airflow outlet 6, and is discharged from the air outlet 10 together with the cooling air that has passed through the control unit 11.

Next, when heating cooking with the heater is to be performed, the handle 11 is lifted to open the second body 3, and the pot containing the food to be cooked is placed on the electric heater stove 4. At this time, the second
By opening the casing 3, the Dan/l 7 s g is closed, preventing dirt and food particles from entering into the first casing 2, and! Microswitches 19 and 20 are turned off. After setting the desired output using the output control knob 22, preparation for cooking is completed. In this way, when the preparation for cooking is completed and the power switch 21 is turned on, since the switch 19 is turned off,
The control unit 11- is a power control mode for heater heating cooking.
That is, in the drive circuit 40.50, the transistor 2 and the trier 14 are both turned off, the transistor 13 is turned on, and in this state, the transistor 1 is turned on and off, and a rectangular wave DC current is applied to the heater z2. A signal voltage is applied.

In this case, since the current supply state to the heater 12 is detected by the load detector 16, a delay time is generated in the on/off control of the transistor 11 based on the main control circuit 30 at the time of starting the supply of electricity, and the optimal This is the output control.

In this way, heating control of the heater is carried out with the dead output in accordance with the operation of the output control knob 21.

In response to the operation, the output control knob 22C) sets the on/off period of the switching means in the control unit 11, and uses this switching means to drive the induction coil 14 to high frequency oscillation and to drive the heater 4a on/off. At the same time, the high-frequency oscillation drive of the induction coil 14 and the on/off drive of the heater 4 are switched according to the usage status of the induction heating cooker and the electric heater stove, so that the output control knob for each cooker can be switched. and circuits can be shared, resulting in a significant cost reduction. Moreover, since there is only one -output control knob, the risk of erroneous operation is eliminated. Furthermore, since the output of the electric heater stove can be controlled steplessly in the same way as the induction heating cooker, it is possible to carry out optimal cooking according to the situation.

In the above embodiment, the switches 19 and 20 are used to detect the usage status of the induction heating cooker and the electric heater stove, but the usage status is detected by phase detection (R, (L, C components) may also be used. In addition, it goes without saying that the present invention is not limited to the above-mentioned embodiments, and that various modifications can be made without changing the gist.

As described above, according to the present invention, - the on/off period of the switching means in the control section is set in accordance with the operation of the output control knob, and the high frequency oscillation of the induction coil in the induction heating cooker is caused by this switching means. The heater in the electric heater stove is turned on and off, and the high-frequency oscillation drive of the induction coil and the on and off driving of the heater are switched depending on the usage status of the induction cooking device and the electric heater stove. Therefore, the output controller for each cooker
It is possible to share the circuit and the circuit, and it is possible to significantly reduce the cost F compared to K, and moreover, it is possible to provide a cooker that can be operated incorrectly.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective configuration diagram, FIG. 2 is a schematic diagram of the internal mechanism of the company, and FIG.
The figure is a diagram schematically showing the control section, and FIG. 4 is a configuration diagram specifically showing the main parts of FIG. 3. 2... First housing, 3... Second housing, 4... Electric heater stove, 11... Control unit, 13.14... Induction heating cooker (torano plate and induction coil, 19 ．．
20... Micro switch, 22... Output control knob, 30... Main control circuit, 40... Induction coil drive circuit, SO... Heater drive circuit. Applicant's agent: Patent Attorney Tuling Jiang Wu Liao

Claims (1)

[Claims] In a composite cooking device that integrates an induction heating cooker and an electric heater stove, there is provided a detection means for detecting the usage status of the induction heating cooker and the electric heater stove, an output control roll knob, and operation of the output control knob. It has a switching means that turns on and off with a cycle according to tc, and when the detection means detects the use of the induction cooking device, the induction coil of the induction heating cooking device is caused to oscillate at high frequency by the switching device. and a control section for driving the heater of the electric heater stove on and off by the switching means when the detection means detects the use of the electric heater stove. vessel.