JPH09260053A - Control device for heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain plural outputs not less than the number of current-carrying control switches by the constitution to switch connection between plural current- carrying control switches by a switching means by arranging the plural current- carrying control switches, a cam to control a current-carrying rate of these current-carrying control switches and a driving means to drive this cam. SOLUTION: A control device of a heating cooker is provided with plural current-carrying control switches 34 to 37 carry an electric current to a heating means at a prescribed current-carrying rate, a cam aggregate 31 to control a current-carrying rate of these current-carrying control switches 34 to 37, a driving means (composed of gears 32 and 33) to drive this cam aggregate 31 and a switching means to switch connection between the plural current- carrying control switches. Different current-carrying rates can be obtained by operating the plural current-carrying control switches 34 to 37 by series connection, parallel connection or independently. For example, a high frequency heating means and a heater heating means are arranged as a heating means, and a current carrying control switch group 34 to the former and current- carrying control switch groups 36 and 37 to the latter are seperately arranged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output control device for a heating cooker.

[0002]

2. Description of the Related Art The functions of a general high-frequency heating type cooking device are standardized worldwide, and the basic function is to be able to set a plurality of stages of heating power. Moreover, the method of setting the thermal power is carried out by controlling the duty ratio of the high-voltage generating transformer.

FIG. 19 is a sectional structural view of a conventional high-frequency heating type cooking device. In the figure, reference numeral 1 is a heating cabinet for housing the object to be heated, and 2 is a magnetron attached to a magnetron mount 3 formed on the side wall of the heating cabinet 1, which radiates microwaves into the cabinet. Reference numeral 4 is a rotary plate on which an object to be heated is placed, 5 is a turntable motor for rotating the rotary plate 4, 6 is a turntable motor mount to which the turntable motor 5 is mounted, and 7 is driven by the turntable motor 5. Is a turntable motor shaft, 8 is a coupling portion that connects the turntable motor shaft 7 and the rotary plate 4, and 9 is a roller that rotatably supports the rotary plate 4 in a horizontal position.

FIG. 20 is a block diagram of the conduction controller of FIG. In the figure, 10 is a cam body fixed to the turntable motor shaft 7 and attached so as to rotate together with the turntable motor shaft 7, 11 is attached to the turntable motor mount 6, and is turned on by the cam body 10.
-This is an energization control switch that is turned off.

FIG. 21 is an external view of a conventional heating cooker. In the figure, 12 is a door for loading and unloading objects to be heated, 1
Reference numeral 3 is an operation panel provided with a timer knob 14 and a function selection knob 15. The function selection knob 15 can switch between two types of functions, "continuous" and "thaw".

FIG. 22 is a control circuit diagram of a conventional heating cooker. In the figure, 16 is a power plug, 17 is a fuse, 18 is a door switch 1, 19 is a door switch 2, 20 is a monitor switch, and 21 is a timer. A contact 22 is a timer motor that counts the time set by the timer knob 14, and controls opening and closing of the timer contact 21. Reference numeral 5 is a turntable motor shown in FIG. 19, 11 is an energization control switch shown in FIG. 20, 23 is a function selection switch corresponding to the function selection knob 15 shown in FIG. 21, 24 is a high voltage transformer for driving the magnetron 2. is there.

Next, the operation will be described. In FIG. 19, to the heating chamber 1, 2450 MHz from the magnetron 2
Of microwave. The turntable 4 is rotated by a turntable motor shaft 7 connected to a turntable motor 5 to uniformly heat the food, which is an object to be heated, on the turntable 4. Further, the cam body 10 is the turntable motor shaft 7
The convex part (cam) formed on the cam body 10 by rotating together with
Presses the switch to intermittently open and close the energization control switch 11. For example, when the convex portion formed on the cam body 10 occupies one-third of the entire circumference of the cam 10, 5 seconds ON1
It works like 0 second OFF.

In FIG. 22, the power plug 16 is connected to the power source, and the current is the fuse 17 or 18 door switch 1.
It flows through the door switch 2 of 19 and the timer contact 21 to the on-off control part composed of the turntable motor 5, the energization control switch 11 and the function selection switch 23. The energization control switch 11 of the on / off control unit is configured to be on / off in accordance with the rotation of the normal turntable motor 5 as described above. For example, if the function selection knob 15 shown in FIG. 21 is set to “continuous”, the function selection switch 23 is short-circuited and the current supply is continuous. In other words, the specifications are 100% output “strong”, and the high-voltage transformer 24 is continuously energized to continuously radiate microwaves. On the other hand, when the function selection knob 15 is set to "defrost", the function selection switch 23 is opened, and the energization control switch 11 is repeatedly turned on and off by the cam 10, so that the current is intermittent, and for example, the average output is "weak" of about 30%. ] Specifications.

[0009]

Generally, the output of the heating cooker of the high-frequency heating system is variously varied in the intermittent period as described above to obtain various outputs. However, in order to obtain many different outputs, it is necessary to provide a cam and an energization control switch corresponding to each of them, which is not only costly but also complicated in terms of structure and wiring. It was

For example, the output is 20%, 40%, 60%,
23 and 24 show a configuration in which a cam and an energization control switch corresponding to each output are provided in order to switch between 80% and 100%. As shown in FIG. 23, the operation panel 13 is provided with a function selection knob 25 for switching the output in multiple stages. Further, as shown in FIG. 24, a function selection switch 26 is provided corresponding to each function selectable by the function selection knob 25. Function selection knob 2
When the output is selected by 5, the switch corresponding to the selected output of the function selection switch 26 is short-circuited, and the energization control switch 11 corresponding to the switch is switched to the cam 10 (not shown).
It is configured to intermittently energize to obtain a desired output. As described above, if the cams and the energization control switches are provided by the number of outputs that can be switched, the configuration becomes complicated and costly as described above.

The present invention has been made for the purpose of solving such a problem, and provides a heating cooker in which an output can be varied in a plurality of stages, which are equal to or more than the number of cams and energization control switches. With the goal. Further, the controllability of a heating cooker having both functions of high-frequency heating and heater heating is to be improved at the same time.

[0012]

A control device for a heating cooker according to a first aspect of the present invention controls a plurality of energization control switches for energizing a heating means at a predetermined energization rate and the energization rates of the energization control switches. A cam, a driving means for driving the cam, and a switching means for switching the connection between the plurality of energization control switches, which differ by operating the plurality of energization control switches in series, in parallel, or independently. It is to obtain the duty ratio.

A heating cooker control device according to a second aspect of the present invention is the heating cooker control device according to the first aspect of the present invention.
A first energization control switch group having a high-frequency heating means and a heater heating means as heating means for controlling energization to the high-frequency heating means, and a second energization control switch for controlling energization to the heater heating means. The group and the group are arranged separately.

A heating cooker control device according to a third aspect of the present invention is the heating cooker control device according to the first aspect of the present invention.
The energization control switch and the cam are attached to a mounting member so as to be detachable in the heating cooker.

According to a fourth aspect of the present invention, there is provided a control device for a heating cooker, wherein an energization control switch for energizing the heating means at a predetermined energization rate, a circuit for short-circuiting the energization control switch, and a temperature for detecting the temperature inside the refrigerator. When the temperature inside the refrigerator is lower than a predetermined temperature, the energization control switch is short-circuited to energize, and when the temperature exceeds a predetermined temperature, the energization control switch energizes at a predetermined energization rate. It was done like this.

A control device for a heating cooker according to a fifth aspect of the present invention includes a function selecting means for selecting a function of the heating cooker, a plurality of energizing control switches for energizing the heating means at a predetermined energizing rate, and a plurality of these energizing control switches. A plurality of function selections that operate according to the selection of the cam and the function selection means of the energization control switch, and select the energization control switch that energizes the heating means among the plurality of energization control switches. A switch is provided, and different functions are obtained by combining the plurality of energization control switches.

A control device for a heating cooker according to a sixth invention is the control device for a heating cooker according to the fifth invention,
A first energization control switch group having a high-frequency heating means and a heater heating means as heating means for energizing the high-frequency heating means, and a second energization control switch group for energizing the heater heating means. And a second function selection switch group for selecting and operating the first energization control switch group and a second function selection switch group for selecting and operating the second energization control switch group. They are arranged separately.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. Hereinafter, as a first embodiment of the present invention, a heating cooker having both functions of high frequency heating and heater heating will be described. FIG. 1 is a front external view of the heating cooker according to this embodiment. In the figure, reference numeral 30 is a function selection knob which is a function selection means for switching functions such as output of the apparatus.
It is possible to switch between 40%, 60%, 80%, and 100%. Also, it is possible to switch between heater heating (grill), heater heating and high-frequency heating, and combi heating, and a timer function that operates only the timer without heating. Can also be selected. Further, 12 is a door for taking in and out the object to be heated, and 13 is an operation panel provided with a function selection knob 30 and a timer knob 14 for setting a time.

Further, the sectional structural view of the heating cooker in this embodiment is similar to that shown in FIG. 19 used for explaining the conventional technique. In the figure, reference numeral 1 is a heating cabinet for storing an object to be heated, 2 is a magnetron attached to a magnetron mount 3 formed on a side wall of the heating cabinet 1,
A microwave is radiated into the heating chamber 1. Reference numeral 4 is a rotary plate on which the object to be heated is placed, 5 is a turntable motor for rotating the rotary plate 4, 6 is a turntable motor mount to which the turntable motor 5 is attached, 7
Is a turntable motor shaft that is rotated by the drive of the turntable motor 5, 8 is a coupling portion that connects the turntable motor shaft 7 and the rotary plate 4, and 9 is rotatably supported so that the rotary plate 4 is horizontal. It's a roller.

FIG. 2 is a perspective view of the structure around the turntable motor 5. In the figure, reference numeral 31 denotes an energization control cam assembly, 32 denotes a gear, which is directly connected to the turntable motor shaft 7 and is configured to be linked to a gear 33 provided on the energization control cam assembly 31 (in the drawing, Is gear 32
And the gear 33 are shown separately.) The turntable motor 5 is set to 5 revolutions per minute, the gear damping ratio is set to 1/2, and the energization control cam assembly 31 is set to 2.5 revolutions per minute (1
24 seconds).

Numerals 34 to 37 are energization control switches C which are ON / OFF controlled by the rotation of the energization control cam assembly 31.
SW1 (controlled switch) to CSW4. Of these, the energization control switch 34 and the energization control switch 35 are used for high frequency heating output control, and the energization control switch 36 and the energization control switch 37 are used for heater output control.

Energization control switches 34 to 37, turntable motor 5, energization control cam assembly 31, gear 32,
33 is attached to the turntable motor mount 6, which is a resin attachment member. Reference numeral 42 denotes a set of four mounting claws, which are mated with slots 42A (shown in FIG. 3) of a mount receiver provided on the outer bottom surface of the heating chamber 1. That is, after the components shown in FIG. 2 are attached to the turntable motor mount 6 to form an integral component group, they are detachably attached to the bottom of the heating chamber 1. Therefore, it can be mounted on the bottom of the heating chamber after the connection between the energization control switches 34 to 37 and the function selection switch described later is completed, and the complicated connection work on the assembly conveyor is not required, so that the assembly work can be performed. Can be rationalized.

FIG. 3 is a sectional view of the energization control cam assembly 31 and the energization control switches 34 to 37. As shown in the figure, the energization control switches 34 and 3 for high frequency heating output control
5 are stacked and fixed to the turntable motor mount 6 by passing through a screw (not shown). Also,
The energization control switches 36 and 37 for controlling the heater output are arranged to overlap with the energization control switches 34 and 35 by approximately 180 degrees opposite to each other, and further, the energization control switches 34 and 35.
With respect to the switch, the switch is displaced by a dimension A / 2 which is half the thickness A of the switch.

On the outer circumference of the energization control cam assembly 31, there are four
Four cams are formed corresponding to the individual energization control switches 34 to 37. Each energization control switch 34
, A cam 39 corresponding to the energization control switch 35, a cam 40 corresponding to the energization control switch 36,
The cam 41 corresponds to the energization control switch 37. Further, the energization control cam assemblies 31 are arranged at the minimum pitch so as not to occupy the arrangement space more than necessary, and therefore the two switch groups are displaced by half the width of the switches. .

FIG. 4 shows a display of the function selection knob 30 arranged on the operation panel 13 and its surroundings. As shown in the figure, there are eight selectable functions in this embodiment.
There are types, "100%", "80%" and "60"
%, "40%", "20%", "cooking timer", "grill", "combi". Also, each function is 45
They are arranged by ° and click-stop at each position.

FIG. 5 shows the function selection knob 30 shown in FIG.
Assembly 6 of function selection cams that rotate in conjunction with the rotation of
5 and ON by the function selecting cam assembly 65
The actual arrangement of the plurality of function selection switches 54 to 58 that are turned off is shown. Further, FIG. 6 shows a function selecting cam assembly 6
5 is a cross-sectional view showing a state in which the function selection knob 30 is attached to the device 5. As shown in the figure, the function selection switches 54 to 56 (SW1 to SW3) are fixed to the function selection cam aggregate 65 as a group, and the function selection switches 57 (SW4) and 58 are fixed.
(SW5) as another group is displaced by half A / 2 of the thickness of one switch, and fixed so that the arrangement space of the function selecting cam aggregate 65 and the function selecting switches 54 to 58 is minimized. . Similar to the energization control switch groups 34 to 37, each function selection switch group is attached to the operation panel 13 with a screw (not shown) penetrating each switch group. The function selection switches 54 to 56 are used for selecting the function of high frequency heating, and the function selection switches 57 and 58.
Is used for selecting the function of heating the heater.

As shown in FIG. 6, the function selection knob 3
0 is fixed to the function selecting cam assembly 65 by a screw 67, and the rotation of the function selecting knob 30 is directly transmitted to the function selecting cam assembly 65. In addition, the five cams 6 arranged on the outer circumference of the body of the function selecting cam aggregate 65
8 to 72 are function selection switches 54 to 58 (SW
1 to SW5), each switch is turned ON / OFF.

FIG. 7 is a connection diagram of the control circuit in this embodiment. In the figure, 50 and 51 are connected to a power source. 52 is a thermostat for preventing overheating of the high frequency generator, 53 is a timer contact for controlling the cooking time, and opening / closing is controlled by a timer motor 63 that counts the time set by the timer knob 14. The current supplied from the power supply flows through the overheat prevention thermostat 52 and the timer contact 53 to the interruption control unit including the function selection switches 54 to 58 and the energization control switches 34 to 37. The function selection switches 54 to 58 are connected to the energization control switches 34 to 37 as shown in FIG.
By selecting ON / OFF of 4 to 58, the energization control switch for energizing the heating means is selected. Reference numeral 59 is a thermostat for preventing overheating, which is attached to the wall of the heating chamber 1.
The energization control switch 37 (CSW4) is connected so as to be short-circuited. Reference numeral 60 is a high-voltage generating transformer load which is heating means for high frequency heating, and 61 is a heater which is heating means for heating the heater. Reference numeral 62 is an air cooling fan motor.

8 (1) is an explanatory view of the energization chart, and FIG. 8 (2) is the energization control switches 34 to 37 (CSW1 to CS).
The cross-sectional view of each cam 38-41 corresponding to W4) is shown. Among these, the cams 38 and 39 for controlling the high frequency heating will be described. The ON rate (energization rate) of the cam 38 that operates the energization control switch 34 (CSW1) is 144 ° / 36.
0 ° = 40% (indicated by 43 in the figure), energization control switch 3
The ON rate of the cam 39 that operates 5 (CSW2) is 216
° / 360 ° = 60% (indicated by 44 in the figure). Further, the relative positions of the cam 38 and the cam 39 are displaced by 72 ° as shown by 47 in the figure. Therefore, as will be described later, an ON rate of 20% (48 in the figure) is obtained by obtaining a logical "difference" between the time when the cam 38 is turned on and the time when the cam 39 is turned on.
ON) by controlling, and obtaining a logical "sum"
A rate of 80% (indicated by 49 in the figure) can be controlled.

Next, cams 40 and 41 for controlling heater heating
Will be described. Energization control switch 36 (CSW3)
ON rate of the cam 40 that operates the is 72 ° / 360 ° = 2
Set to 0% (indicated by 45 in the figure), and energization control switch 3
The ON rate of the cam 41 that operates the 7 (CSW4) is 288.
° / 360 ° = 80% (indicated by 46 in the figure). The relative positional relationship between the cam 40 and the cam 41 is arbitrary.

FIG. 9 is a table showing the relationship between each function (output) and the operation of each switch in this embodiment.

Next, the operation of the heating cooker according to this embodiment will be described with reference to FIGS. 7, 8 and 9.
For example, to obtain "20%" output by high frequency heating,
First, the function selection knob 30 is set to the "20%" position.
Corresponding to the position of the function selection knob 30, the function selection switches SW2 and SW3 are turned on by the cams 69 and 70 of the function selection cam aggregate 65. When the switches SW2 and SW3 are turned on, the energization control switch CSW1 with a duty ratio of 40%
And the energization control switch CSW2 having a duty ratio of 60% are connected in series. Therefore, the portion of the logic "difference" between CSW1 and CSW2, that is, when both switches are turned ON, is energized, and a duty ratio of 20% is obtained as indicated by 48 in FIG. 8 (1). High-voltage generating transformer load 60
Is energized at a duty ratio of 20% and is heated at an output of 20%.

When obtaining "80%" output, the function selection knob 30 is set to the "80%" position. Corresponding to the position of the function selection knob 30, the cams 68 and 70 of the function selection cam aggregate 65 are used to select the function selection switches SW1 and SW3.
Is turned on, and the energization control switches CSW1 and CSW2 are connected in parallel. Therefore, when the logical "difference" between CSW1 and CSW2, that is, one of them is ON, electricity is supplied, and a duty ratio of 80% is obtained as indicated by 49 in FIG. 8 (1). The high-voltage generating transformer load 60 is energized at a duty ratio of 80%, and heating is performed at an output of 80%.

To obtain outputs of "40%" and "60%", the energization rates of the cam 38 and the cam 39 may be used. That is, when the function selection knob 30 is set to the position of "40%", only the function selection switch SW1 is turned on correspondingly and only the energization control switch CSW1 is brought into the conductive state, so that the energization rate of the cam 38 is 40%. Output is obtained. Further, by setting the function selection knob 30 to the position of "60%", only the function selection switch SW3 is turned on and only the energization control switch CSW2 is turned on, so that the output of the cam 39 with the energization rate of 60% is obtained. To be

When the output of "100%" is obtained, the influence of the energization control switches CSW1 and CSW2 should not be affected.
The circuit may be bypassed by turning on the function selection switches SW1 and SW2. That is, the function selection knob 30 is set to "1.
"00%" position, the cams 68 and 69 of the operation knob assembly 65 are set to the function selection switches SW1 and SW.
2 is turned on.

Next, the operation of the combination heating will be described. This combi heating is used when the heater is used to make a brown mark and the high frequency heating is used for quick cooking. First, the function selection knob 30 is set to the "combination" position. Corresponding to the position of the function selection knob 30, the cam 72 of the function selection cam aggregate 65 turns on the function selection switch SW5, whereby the energization control switch CSW3 is used. The energization control switch CSW3 has both normally open and normally closed contacts, the normally open side is connected to the heater 61, and the normally closed side is the function selection switch S.
It is connected to a high-voltage generating transformer load 60 for high frequency heating through a normally closed contact of W2. Therefore, when the energization control switch CSW3 is turned on by the cam 40, the normally-open contact side of the CSW3 is energized to heat the heater,
When 3 is OFF, the normally closed contact side is energized to perform high frequency heating, and heater heating and high frequency heating are alternately repeated. Here, the cam 4 that turns the CSW 3 on and off
Since the ON energization rate of 0 is 20%, the energization rate of the CSW 3 normally open contact (heater heating energization rate) is 20%, and the energization rate of the normally closed contact (high frequency heating energization rate) is 80%.

Next, heater heating control (grill) using the energization control switch CSW4 will be described. If you want to cook on the "grill", first select the function selection knob 30
To the "grill" position. This function selection knob 30
The cam 7 of the function selecting cam assembly 65 corresponding to the position of
1 turns on the function selection switch SW4, whereby the energization control switch CSW4 is used. The energization control switch CSW4 is configured to function when the inside of the refrigerator reaches a predetermined temperature during heating of the heater. That is, when the temperature is still low at the start of cooking, the contact point of the overheat prevention thermostat 59 is closed, the intermittent operation of the CSW 4 does not function, and heating is performed at 100% output. When cooking progresses and the temperature of the mounting portion rises up to the operating temperature of the thermostat 59, the thermostat 59 opens and operates so that the energization rate of the CSW 4 comes to life. Since the 0N duty ratio of the cam 41 that operates the CSW 4 is 80%, the heater 72 heats with an output of 80%. By providing such a function, the life of the heater is not shortened by continuing to energize the heater, and the temperature of the storage wall and the case does not exceed the limit. Therefore, it is possible to protect the coating of the storage wall and the coating of the case, and it is not necessary to use an expensive stainless steel material having excellent heat resistance.

There is also a case where it is desired to use only the cooking timer function when cooking a boiled egg for 10 minutes with a gas fire without cooking with a heating cooker. In such a case, the function selection knob 30 is set to the “timer”, all the function selection switches SW1 to SW5 are turned off, and all the energization control switches CSW1 to CSW4 are prevented from being energized. Since electricity is cut off, cooking is not performed by high frequency heating or heater heating, only the timer operates, the time set by the timer knob 14 is counted, and after the set time has elapsed, the notification means (not shown) ends Make a sound and stop.

Embodiment 2 In the first embodiment, the heating cooker in which the high frequency heating and the heater heating are combined has been described, but the present invention is also applicable to the heating cooker using only the high frequency heating. FIG. 10 shows the appearance of the heating cooker in that case, and FIG. 11 shows the appearance of the function selection knob 66 of the operation panel 13 and the display section around it. As shown, the function selection knob 66 in this embodiment is
The function of "combi" and "grill" is removed from the function selection knob 30 in the first embodiment shown in FIG. Further, the control circuit in this embodiment is similar to that shown in FIG.
7 corresponds to the circuit configuration of the first embodiment shown in FIG. 7 from which the function selection switches SW4 and SW5, the energization control switches CSW3 and CSW4, and the heater 61 for heating the heater are removed.

That is, although not shown, from the configuration of the first embodiment, the energization control switches 36 and 37 (CSW3, CSW4) for controlling the heater output, and the function selection switch 57 for selecting the function of heating the heater, 58 (SW4
By removing SW5), a heating cooker using only high frequency heating can be obtained. In other words, the high-frequency output control energization control switches 34 and 35 (CSW)
1, CSW2) and the function selection switches 54 to 56 (SW1 to SW3) for selecting the function of high frequency heating. Here, the energization control switches 34 to 37
Since the function selection switches 54 to 58 are arranged separately in two groups, one for high frequency heating and the other for heater heating, it is easy to assemble using only one of them. In addition, a heating cooker having both functions of high frequency heating and heater heating and a heating cooker performing only high frequency heating can share a structure such as a cam, which is effective in suppressing investment.

Embodiment 3 FIG. 13 is an external view of a heating cooker according to another embodiment of the present invention. As shown in the figure, in this embodiment, each function of the heating cooker is switched by the slide knob 81. FIG. 14 is an enlarged view of the slide knob 81 and the display portion around it. Similar to the first embodiment, the slide knob 81 has a high frequency heating output of 20%, 40%, 60%, 8%.
In addition to being able to switch between 0% and 100%, it is also possible to select heater heating (grill), combi heating in which heating is performed while switching between heater heating and high frequency heating, and a timer function that operates only the timer without heating. ing.

FIG. 15 is a structural perspective view of a function selection switch section which operates in conjunction with the operation of the slide knob 81. In the figure, 54 to 58 are function selection switches SW which are turned on / off in response to the selection of the function by the slide knob 81.
1 to SW5. Similar to the first embodiment, these switches are divided into two switch groups, that is, SW1 to SW3 for high frequency heating and SW4 and SW5 for heater heating, and are easy to assemble. In addition, SW1-S
The first group of W3 and the first group of SW4 and SW5 are arranged so as to be offset from each other by half the width of the switch, and are configured with a minimum arrangement space. The fixed structure of the switch is the operation panel 13
It is built as one.

Reference numeral 80 denotes a flat plate cam corresponding to the cylindrical cam 65 in the first embodiment, which moves in parallel inside the switch fixing frame. The slide knob 81 is fixed to the plate-shaped cam 80 by screwing or the like, and the operation of the plate-shaped cam 80 is integrated with the operation of the slide knob 81, and the spring stopper 84 click-stops at each functional position.
Then, corresponding to each function, each function selection switch 54 to 58 is turned on / off by a cam formed on the flat plate cam 80.
FF is performed.

FIG. 16 is a sectional view of FIG. 15, in which the slide knob 81 and the flat cam 80 are fixed by screws 83. In this figure, the function selection switch 54 (SW
1) and 55 (SW2) are in a state of being pushed and turned on by a cam formed on the flat plate cam 80, and the switch 56 (SW3) is in an off state.

The configurations of the energization control switches 34 to 37 and the energization control cam assembly 31 attached to the turntable motor mount 6 are the same as those in the first embodiment (FIG. 2), and the control circuit is connected. The diagram is also similar to FIG. 7, and operates in the same manner as in the first embodiment.

Fourth Embodiment Although the heating cooker having both the high frequency heating function and the heater heating function has been described in the third embodiment, this slide knob type function selecting means can also be applied to the heating cooker that performs only high frequency heating. FIG. 17 is an external view of the heating cooker according to this embodiment. In the figure, reference numeral 85 is a slide knob in this embodiment, and FIG.
And an enlarged view of the display part around it. As shown in the figure, the heating cooker according to this embodiment is obtained by removing the combination function and the grill function from the functions that can be selected in the third embodiment. That is, although not shown, from the configuration of the third embodiment, the heater heating function selection switches SW4 and SW5, and the energization control switch C are added.
SW3 and CSW4, and the heater 61 for heating the heater are removed. Here, the energization control switch 34-
37 and the function selection switches 54 to 58 are configured to be arranged in two groups, one for high frequency heating and the other for heater heating, so that it is easy to assemble using only one. Further, a structure such as a cam can be shared by a heating cooker having both functions of high frequency heating and heater heating and a heating cooker performing only high frequency heating.

Embodiment 5 In the above embodiment, 20%, 40%, and 40% duty ratio cams are used.
Although the outputs of 60% and 80% are obtained, the present invention is not limited to this, and it is possible to obtain other outputs by combining a plurality of cams having various duty ratios.

[0048]

According to the control device for a heating cooker of the first aspect of the present invention, a plurality of energization control switches for energizing the heating means at a predetermined energization rate and a cam for controlling the energization rate of the energization control switches. And driving means for driving the cam, and switching means for switching the connection between the plurality of energization control switches, the plurality of energization control switches are connected in series,
Since different energization rates are obtained by operating in parallel or operating independently, it is possible to obtain a plurality of outputs equal to or more than the number of energization control switches.

According to the heating cooker controller of the second invention, the heating cooker controller of the first invention has a high-frequency heating means and a heater heating means as heating means. Since the first energization control switch group for controlling energization to the heating means and the second energization control switch group for controlling energization to the heater heating means are separately arranged, cooking having only a high frequency heating function The first in the container
Assemble using only the energization control switch group of
It is easy to assemble, and a structure such as a cam can be shared by a heating cooker having both high frequency heating and heater heating functions and a heating cooker having only high frequency heating functions.

According to the heating cooker controller of the third invention, in the heating cooker controller of the first invention, the energization control switch and the cam are attached to the mounting member.
Since it is detachable in the heating cooker, it can be installed in the heating cooker after completing the wiring work of the energization control switch, and the assembling work can be rationalized.

According to the control device for the cooking device of the fourth aspect of the present invention, the energization control switch for energizing the heating means at a predetermined energization rate, the circuit for short-circuiting the energization control switch, and the temperature inside the refrigerator are detected. When the temperature inside the refrigerator is lower than a predetermined temperature, the energization control switch is short-circuited to energize, and when the temperature exceeds a predetermined temperature, the energization control switch energizes at a predetermined energization rate. Therefore, after reaching the predetermined temperature, the heating means can be energized by lowering the energization rate, and while the cooking performance is secured, the coating of the storage wall and the coating of the case can be protected from the high temperature.

According to the control device of the heating cooker according to the fifth aspect of the present invention, function selecting means for selecting the function of the heating cooker,
A plurality of energization control switches for energizing the heating means at a predetermined energization rate, a cam for controlling the energization rates of the plurality of energization control switches, and a plurality of energization controls that operate according to the selection of the function selecting means. A plurality of function selection switches for selecting an energization control switch for energizing the heating means among the switches are provided, and a different function is obtained by a combination of the plurality of energization control switches. It is possible to obtain a plurality of different functions, which is more than the number of control switches.

According to the control device of the heating cooker of the sixth invention, in the control device of the heating cooker of the fifth invention, a high frequency heating means and a heater heating means are provided as heating means, A first energization control switch group for energizing the heating means and a second energization control switch group for energizing the heater heating means are separately arranged, and the first energization control switch group is selected. Since the first function selection switch group to be operated and the second function selection switch group to select and operate the second energization control switch group are separately arranged, the heating cooker having only the function of high frequency heating has the first function selection switch group. It is sufficient to assemble using only one energization control switch group and the first function selection switch group, and the assembly is easy, and the heating function has both high frequency heating and heater heating. In a heating cooker having only physical devices and functions of the high frequency heating it can be shared structures such as cams.

[Brief description of drawings]

FIG. 1 is a front external view of a heating cooker according to a first embodiment.

FIG. 2 is a perspective view around a turntable motor of the heating cooker according to the first embodiment.

FIG. 3 is a cross-sectional view around a turntable motor of the heating cooker according to the first embodiment.

FIG. 4 is an external view of a function selection knob of the heating cooker and its surrounding display according to the first embodiment.

FIG. 5 is a perspective view of a function selection cam and a function selection switch of the heating cooker according to the first embodiment.

FIG. 6 is a sectional view of a function selection cam and a function selection switch of the heating cooker according to the first embodiment.

FIG. 7 is a connection diagram of the control device for the heating cooker according to the first embodiment. Function selection switch layout

FIG. 8 (1) is an energization chart explanatory diagram of the heating cooker according to the first embodiment. (2) FIG. 4 is a cross-sectional view of the energization control cam of the heating cooker according to the first embodiment.

FIG. 9 is a table showing the relationship between each function of the heating cooker and the operation of each switch according to the first embodiment.

FIG. 10 is a front external view of the heating cooker according to the second embodiment.

FIG. 11 is an external view of a function selection knob of a heating cooker and a display around the function selection knob according to the second embodiment.

FIG. 12 is a wiring diagram of a control device for a heating cooker according to a second embodiment.

FIG. 13 is a front external view of the heating cooker according to the third embodiment.

FIG. 14 is an external view of a function selection knob of the heating cooker and a display around the function selection knob according to the third embodiment.

FIG. 15 is a perspective view of a function selection cam and a function selection switch of the heating cooker according to the third embodiment.

FIG. 16 is a sectional view of a function selection cam and a function selection switch of the heating cooker according to the third embodiment.

FIG. 17 is a front external view of the heating cooker according to the fourth embodiment.

FIG. 18 is an external view of a function selection knob of a heating cooker and a display around the function selection knob according to the fourth embodiment.

FIG. 19 is a cross-sectional structural diagram of a conventional high-frequency heating type cooking device.

FIG. 20 is a configuration diagram of a conduction control unit of a conventional high-frequency heating type cooking device.

FIG. 21 is an external view of a conventional high-frequency heating type cooking device.

FIG. 22 is a control circuit diagram of a conventional high-frequency heating type cooking device.

FIG. 23 is an external view of another conventional high-frequency heating type cooking device.

FIG. 24 is a control circuit diagram of another conventional high-frequency heating type cooking device.

[Explanation of symbols]

2 magnetron, 6 turntable motor mount, 14 timer knob, 30 function selection knob, 31
Energization control cam assembly, 34 to 37 energization control switch, 52 excessive rise prevention thermostat, 53 timer contact, 54 to 58 function selection switch, 60 high voltage generating transformer load, 61 heater, 63 timer motor, 6
5 Function selection cam assembly.

Claims (6)

[Claims] 1. A plurality of energization control switches for energizing the heating means at a predetermined energization rate, a cam for controlling the energization rate of the energization control switches, a driving means for driving the cams, and the plurality of energization controls. A controller for a heating cooker, comprising: a switching means for switching the connection between the switches, wherein different energization rates are obtained by operating the plurality of energization control switches in series, in parallel, or independently. 2. A first energization control switch group having high-frequency heating means and heater heating means as heating means for controlling energization to the high-frequency heating means, and a first energization control switch for controlling energization to the heater heating means. 2. The control device for the heating cooker according to claim 1, wherein the two energization control switch groups are separately arranged. 3. The heating cooker control device according to claim 1, wherein a plurality of energization control switches and a cam are attached to a mounting member so as to be detachable in the heating cooker. 4. The heating means comprises an energization control switch for energizing the heating means at a predetermined energization rate, a circuit for short-circuiting the energization control switch, and a temperature detecting means for detecting the temperature in the refrigerator, so that the temperature in the refrigerator is predetermined. When the temperature is lower than the temperature, the energization control switch is short-circuited to perform energization, and when the temperature is equal to or higher than a predetermined temperature, the energization control switch performs energization at a predetermined energization rate. Control device. 5. A function selection means for selecting a function of the heating cooker, a plurality of energization control switches for energizing the heating means at a predetermined energization rate, and a cam for controlling the energization rates of the plurality of energization control switches. , A plurality of function selection switches that operate in response to the selection of the function selection means and select an energization control switch that energizes the heating means among the plurality of energization control switches, A control device for a heating cooker, which is characterized by obtaining different functions depending on combinations. 6. A first energization control switch group having a high frequency heating means and a heater heating means as heating means for energizing the high frequency heating means, and a second energization control switch group for energizing the heater heating means. A second function of separately arranging the energization control switch group, and selecting and operating the first energization control switch group and the second energization control switch group. 6. The selection switch group and the selection switch group are separately arranged.
A control device for the heating cooker described.