JPH06215858A - Induction heating cooker - Google Patents

Abstract

PURPOSE:To heat a plurality of heating vessels at once by attachably and detachably arranging the heating vessels in a box, providing heating coils near the respective heating vessels, and providing a driving circuit for supplying a current to the heating coils. CONSTITUTION:A heating base 11 is pulled out from a box 10, a heating vessel 27 is put on a plate 15, the heating base 11 is returned to the box 10, and a main power switch is ON. When an individual switch of the number corresponding to a place to be heated is pushed, a power is supplied from a driving circuit 20 to a heating coil 16 of this number, and the vessel 27 is induction-heated. When a plurality of positions to be heated are present, a plurality of heating vessels are subjected to the same operation as the above. In an abnormality such that heating is conducted in the state where the vessel 27 is absent, when the judgment part of the circuit 20 detects the abnormality, it transmits a command to the switch part of the circuit 20 to stop the current carrying to the coil 16 corresponding to this position. When the heating base 11 is pulled out, a power transmission terminal 19 and a power receiving terminal 17 are separated to each other, the current carrying is safely stopped so that the vessel 27 is not heated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating cooker capable of simultaneously heating a plurality of heating vessels.

[0002]

2. Description of the Related Art In recent years, it has been noted that induction heating cookers have excellent characteristics such as high efficiency and safety, and the use of induction heating cookers has become popular. However, the current situation is that the induction heating cooker capable of simultaneously heating a plurality of heating containers has not been studied.

A conventional induction heating cooker will be described below. FIG. 5 shows a side sectional view of a conventional induction heating cooker. In FIG. 5, 1 is a plate. Reference numeral 2 denotes a frame, which fixes the plate 1. A main body case 3 has an intake port 4 on the front surface and an exhaust port 5 on the rear surface. Also,
The frame 2 and the body case 3 are fixed. A driving circuit 6 is electrically connected to the heating coil 7. 8
Is a cooling fan provided in the vicinity of the intake port 4 to cool the heat-generating components in the drive circuit 6. Reference numeral 9 is a heating container such as a pot.

The operation of the induction heating cooker configured as described above will be described below. By placing the heating container 9 on the plate 1 and turning on the switch of the operation unit (not shown), the heating coil 7 provided inside the main body
Then, the drive circuit 6 operates and can heat.

[0005]

However, in the induction heating cooker as described above, only one heating container 9 can be heated. For this reason, in the case of heating a plurality of heating containers 9 at once, there is only a method of using a plurality of induction heating cookers. Such a method using a plurality of induction heating cookers has problems that it is difficult to secure the installation place and the operability is deteriorated.

The present invention solves the above-mentioned conventional problems, and a first object of the present invention is to provide an induction heating cooker capable of heating a plurality of heating containers at one time.

A second object is to provide an induction heating cooker capable of heating a plurality of heating vessels at one time and stopping the heating location when improper heating is performed.

[0008] A third object is to provide an induction heating cooker capable of heating a plurality of heating containers at one time and carrying a plurality of heating containers at one time.

[0009]

In order to achieve the first object, an induction heating cooker according to the present invention has a plurality of heating containers detachably arranged in a housing, and heating is provided near each heating container. A drive circuit that includes a coil and supplies a current to the heating coil is provided.

Further, in order to achieve the second object, the induction heating cooker of the present invention has a plurality of heating containers detachably arranged in a housing, and a heating coil is provided in the vicinity of each heating container. A drive circuit that supplies current to the heating coil is provided, and further, the output of each heating container is detected, the improper heating state is judged by the value of the output, and only the part of the heating container that detects the improper heating state A control unit for stopping heating is provided in the drive circuit.

Further, in order to achieve the third object, in the induction heating cooker of the present invention, a plurality of heating containers are detachably arranged in a movable movable casing, and heating coils are provided in the vicinity of the respective heating containers. And a drive circuit for supplying an electric current to the heating coil is provided in the fixed casing, and a connector for electrically connecting the movable casing and the fixed casing is provided.

[0012]

With the first technical means, the heating containers for a plurality of heating coils can be heated at one time.

In addition, since the drive circuit detects the output state of each heating container while the plurality of heating containers are being heated by the second technical means, if an improper heating state is detected, that portion is detected. Only heating can be stopped.

Further, by the third technical means, it is possible to move the housing in which the heating container is installed by removing it from the housing having the drive circuit, so that a plurality of heating containers can be moved at once. Can be carried.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of the induction heating cooker of the first embodiment, FIG. 2 is a perspective view of the induction heating cooker, and FIG. 3 is a block diagram of the induction heating cooker. In FIGS. 1, 2, and 3, reference numeral 10 denotes a housing. A heating table 11 has a door portion 12 on the front surface, and a window 13 and a handle 14 are formed on the upper portion of the door portion 12. Reference numeral 15 denotes a plate, which is made of a heat-resistant ceramic material, for example, and is attached to the upper surface of the heating table 11. The heating coil 16 is provided below the plate 15, and the electric wire of the heating coil 16 is the heating table 11
It is electrically connected to the power receiving terminal 17 on the rear surface.
Reference numeral 18 denotes a shelf, which supports the heating table 11 and has a power receiving terminal 17 at the rear.
It is provided with a power transmission terminal 19 connected to the. Reference numeral 20 denotes a drive circuit, which is electrically connected to the power transmission terminal 19. The drive circuit 20 includes a determination unit that detects an abnormality in the output state of the heating coil 16, a switch unit that controls power supply to the heating coil 16, and a drive unit that transmits power to the heating coil 16. An operation unit 21 is provided on the front surface of the housing 10 and includes a main power switch 22 and an individual switch 23. A cooling fan 24 cools heat-generating components of the drive circuit 20 and exhausts heat from the housing. An air inlet 25 is provided on the front surface of the housing 10. An exhaust port 26 is provided on the top surface of the housing 10 (arrows indicate the flow of cooling air). 27 is a heating container such as a cooking plate,
There is a dish 28 inside.

The operation of the induction heating cooker configured as described above will be described below. The heating table 11 and the housing 1
0 from the 0, put the heating container 27 on the plate 15, return the heating table 11 to the housing 10, turn on the main power switch 22 of the operation unit 21, and press the individual switch 23 of the number corresponding to the place to be heated. Electric power is supplied from the drive circuit 20 to the heating coil 16 of that number, and the heating container 27 can be induction-heated. If there are a plurality of locations to be heated, a plurality of heating containers are operated in the same manner as above. The cooling fan 24 rotates during heating to cool the heat-generating components of the drive circuit 20, and the cooling air is also used to exhaust heat from the housing 10. Also, the heating container 27
In the case where the heating coil 16 does not generate an appropriate output in an abnormal condition such as when heating is performed in the absence of the output, when the determination unit of the drive circuit 20 detects such an abnormal output state, the switch unit of the drive circuit 20 is instructed. Of the driving circuit 20 to stop the energization of the heating coil 16 corresponding to that position.
Has In this embodiment, when the heating table 11 is pulled out, the power transmission terminal 19 and the power receiving terminal 17 are automatically disconnected and the energization is stopped, so that the heating container 27 is heated with the heating table 11 protruding from the housing 10. It is safe without any.

FIG. 4 is a perspective view of the induction heating cooker of the second embodiment. The second embodiment has the same components as the first embodiment except that the housing is divided into two parts, and therefore different parts will be mainly described. 11 is a heating table, 12 is a door, 13 is a window, 14 is a handle, 15 is a plate, 27 is a heating container, 28 is a dish, and the above is the same as in the first embodiment. Reference numeral 29 denotes a fixed housing, the operation unit 30 is provided on the front surface, and a drive circuit and a cooling fan are provided inside.
The operation unit 30 includes a main power switch 31 and an individual switch 32. 33 is a movable housing, and wheels 34 are provided on the bottom surface.
And the upper surface 35 is provided with a heat exhaust hole. A plurality of heating bases 11 are provided on the front surface of the movable housing 33. Three
Reference numeral 6 denotes a guide, which is provided from the fixed housing 29. Three
Reference numerals 7 and 38 are connectors for electrically connecting the drive circuit in the fixed casing 29 and the heating coil in the movable casing 33.

The operation of the induction heating cooker configured as described above will be described below. When the movable casing 33 is pushed along the inner side of the guide 36 toward the fixed casing 29 as indicated by an arrow a in FIG. 4, the connectors 37 and 38 are fitted to each other and the drive circuit in the fixed casing 29 is formed. The heating coil in the movable casing 33 is electrically connected. In this state, the heating table 1
1 is pulled out from the movable casing 33, the heating container 27 is placed on the plate 15, and the heating table 11 is returned to the movable casing 33.
When the main power switch 31 of the operation unit 30 is turned on and the individual switch 32 of the number corresponding to the portion to be heated is pressed, power is supplied from the drive circuit (not shown) to the heating coil (not shown) of that number, and heating is performed. The container 27 can be induction-heated. If there are a plurality of locations to be heated, a plurality of heating containers are operated in the same manner as above. When the heating is completed, the movable casing 33 can be removed from the fixed casing 29 as shown by the arrow b in FIG. 4, and the heating container 27 can be moved to the seats of the audience while the movable casing 33 is kept inside, for example. You can

[0020]

As described above, the first aspect of the present invention can provide an induction heating cooker capable of heating a plurality of heating vessels at once.

The second aspect of the present invention can provide an induction heating cooker capable of heating a plurality of heating containers at one time and stopping the heating location when improper heating is performed. .

The third aspect of the present invention can provide an induction heating cooker capable of heating a plurality of heating containers at one time and carrying a plurality of heating containers at one time.

[Brief description of drawings]

FIG. 1 is a sectional view of an induction heating cooker according to a first embodiment.

FIG. 2 is a perspective view of an induction heating cooker according to the first embodiment.

FIG. 3 is a block diagram of an induction heating cooker according to the first embodiment.

FIG. 4 is a perspective view of an induction heating cooker according to a second embodiment.

FIG. 5 is a sectional view of an induction heating cooker in a conventional example.

[Explanation of symbols]

 10 Housing 16 Heating Coil 20 Drive Circuit 27 Heating Container 29 Fixed Housing 33 Movable Housing

Claims (3)

[Claims] 1. A plurality of heating containers are detachably arranged in a housing, and heating coils are provided in the vicinity of each heating container.
An induction heating cooker provided with a drive circuit for supplying current to a heating coil. 2. The method according to claim 1, wherein the output of each heating container is detected, an improper heating state is judged based on the value of the output, and heating is stopped only at the location of the heating container in which the improper heating state is detected. Induction cooker. 3. A plurality of heating containers are removably arranged in a movable housing that is movable, a heating coil is provided near each heating container, and a drive circuit that supplies current to the heating coils is provided in a fixed housing. An induction heating cooker provided with a connector for electrically connecting a movable casing and a fixed casing.