JPH0339396B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Field of Application> The present invention relates to the structure of an operating section of an induction heating cooker.

<Prior art> Conventionally, an induction heating cooker has an operation section 2 on the front of the cooker main body 1, which includes a switch for turning the power on and off and adjusting the heating intensity, as shown in FIG. However, as shown in the figure, if the switch knob and other parts protrude beyond the panel surface of the cooker main body 1, they may be accidentally operated when not in use, when storing the main set, or when transporting the cooker. There is a risk that the knobs and other parts of part 2 may be touched and operated incorrectly, or may become dirty during cooking.

As a countermeasure to this problem, induction heating cookers have been proposed in which the operation part is covered with a lid or is housed inside the main body.

<Problems to be Solved by the Invention> However, since the operation part of the induction heating cooker must be manually operated, it is inconvenient to use.

The present invention has been made to solve the above problems, and focuses on the fact that during use, it is inevitably placed on an object to be heated such as a pot, and the presence or absence of an object to be heated is determined by The present invention attempts to provide an induction heating cooker that is free from erroneous operation and staining of the operating section by detecting it with a detection means, operating the operating section driving means, and automatically moving the operating section into and out of the main body.

<Means for Solving the Problems> The induction heating cooker of the present invention includes a heated object detection means for detecting the presence or absence of a heated object, and an operation section that responds to a signal from the heated object detection means. An operation part driving means for causing the food to appear and disappear into the cooking device main body is provided.

<Function> When an object to be heated is placed on the placement part of the induction heating cooker, this is automatically detected by the object to be heated detection means, and the operation section drive means is driven to store the object in the main body. The operating section is made to protrude outside the main body and is ready for operation.

<Examples> The present invention will be specifically described below with reference to illustrated examples.

FIG. 1 is a schematic block diagram showing an embodiment of the induction heating cooker of the present invention, in which a heating power supply circuit H,
It consists of a drive circuit D, a control circuit C, an operating section 2, a heated object detecting means A, and an operating section driving means B, which are the main parts of the present invention. Heating power supply circuit H is connected to commercial power supply 1
4, rectifying dungeon bridge 15, chiyoke coil 16, smoothing capacitor 17, heating coil 1
2. The operating section 2 mainly includes a resonance capacitor 18 and a switching element 19, and also consists of an operating section structure E and an operating section panel F. Furthermore, a plate 13 is installed above the heating coil 12, and serves as a place for placing an object to be heated, and an object 3 to be heated, such as a pot, is placed on the plate 13.

In the illustrated embodiment, a current tolerance (current detection coil) CT is used as the detection means of the heated object detection means A, and the current transformer
The CT is installed at an appropriate location in the wiring between the commercial power source 14 and the rectifying diode bridge 15. To detect the presence or absence of the heated object 3 by the current transformer CT, a short pulse is sent from the control circuit C to the drive circuit D, and the drive circuit D turns the switching element 19 ON/OFF. The control circuit C detects the current flowing in the C and changes the current value.
This is done by having the person make a judgment.

Further, the operating unit driving means B is connected to the heated object detecting means A.
detects that the object to be heated 3 is placed on the plate 13 and sends a signal to move the operating section 2 out of the cooking device main body 1. In response to the signal, the motor, spring, etc. The driving means is driven to move the operating section 2 out of the cooking device main body 1. Further, if necessary, when the heated object detection means A detects that there is no heated object, the drive means is automatically driven to store the operating part 2 into the cooking device main body 1. Alternatively, the operation section 2 may be manually housed within the cooking device main body 1.

FIGS. 2a and 2b show an operating unit driving means B in which a pulley B ₄ is interlocked via a motor B ₁ , a pulley B ₂ and a belt B ₃ , and the top plate 11 of the cooking device main body 1 is
An operating section 2, which is pivoted on the axis of the pulley _B4 , is inserted and removed between the pulley B4 and the bottom plate 11b. In Fig. 2a, the operating section 2 is connected to the cooking device main body 1.
FIG. 2b shows a state in which the operating part 2 is rotated and projected forward from the cooking device main body ₁ by the rotation of the motor B1.

3a and 3b are perspective views showing the external appearance, and FIG. 3a is a state when not in use, and FIG. 3b is a state when in use, that is, when the object to be heated 3 is placed on the plate 13. , respectively show a state in which the operating section driving means B is driven and the operating section 2 is taken out from the cooking device main body 1.

In the embodiment, a current tolerance CT is used as the heated object detection means A, and the operating unit driving means B
As, motor B ₁ , pulley B ₂ , belt B ₃ ,
Although pulley B ₄ and the like are used, these are not limited to those in the embodiment, and the heated object detection means A may be one using a magnet or a mechanical switch, or an operation part. The driving means B may also use a spring or other means.

<Effects of the Invention> As described above, in the induction heating cooker of the present invention, the object to be heated detection means detects the presence or absence of the object to be heated, and the operation section driving means automatically controls the operation section of the cooking device. By protruding from or retracting from the main body, it not only saves the trouble of manually pulling out the control part from the cooker main body, but also provides safe and hygienic guidance with no erroneous operation or staining of the control part. We can provide heating cookers.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram showing the configuration of an embodiment of the induction heating cooker of the present invention, and FIGS. 2a and 2b are
Same as above, shows the operation unit driving means, FIG. 2a is a vertical side view showing the storage state, FIG. Fig. 3a is a perspective view showing the state when not in use, Fig. 3b is a perspective view showing the state when in use, and Fig. 4 is a perspective view showing the state when not in use.
It is a perspective view of a conventional example. A... Heated object detection means, B... Operating unit driving means, 1... Cooker main body, 2... Operating unit, 3... Heated object.

Claims (1)

[Claims] 1. In an induction heating cooker equipped with an operation section that can be stored in the cooking device main body, a heated object detection means detects the presence or absence of an object to be heated on a placing section, and the heated object detection means detects the presence of an object to be heated. An induction heating cooker characterized by comprising: an operation part drive means that causes the operation part to protrude outside the cooker main body only when this is confirmed.