JPH0468754B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electromagnetic cooker that accurately and stably controls the temperature of food to be cooked.

Conventional Structure and Problems Conventionally, the temperature of the food to be cooked in an electromagnetic cooker has been controlled by adjusting the output using a temperature sensing element attached to the back surface of the top plate. In this method, the temperature of the food to be cooked is transmitted to the container, and the heat of the container is further conducted from the front to the back of the ceramic plate and transmitted to the temperature sensing element, so it is not possible to control the temperature very accurately. In particular, it was difficult to control the temperature in the low temperature range, it was only possible to control the temperature in the high temperature range, and the temperature could not be controlled stably.

Purpose of the Invention In view of the conventional drawbacks, the present invention makes it possible to control the temperature from a low temperature range to a high temperature range, accurately and stably control the temperature of the food to be cooked, and to simply control the output. To provide an electromagnetic cooker that can be switched to control the temperature of food to be cooked.

Structure of the Invention The electromagnetic cooker of the present invention is provided with an output setting means, a temperature setting means, and an inverter oscillation means for heating a container in the electromagnetic cooker main body, and the output setting means and the temperature setting means are provided with a changeover switch. A temperature detection probe, which is connected to a control element operated by a control lever through the control lever and incorporates a temperature detection element for detecting the temperature of the food to be cooked in the container, is provided in the main body of the electromagnetic cooker so that the temperature detection probe can be inserted and removed freely. When the temperature detection probe is not inserted into the electromagnetic cooker main body, the output setting means and the adjustment element are connected, and when the temperature detection probe is inserted into the electromagnetic cooker main body, the temperature detection element of the temperature detection probe and the temperature setting means are connected. In addition, the configuration includes an adjustment lever switching means that connects the temperature setting means and the adjustment element by switching the changeover switch.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In Figures 1 to 4, 1 is a temperature detection probe incorporating a temperature detection element 2, and 3 is a temperature detection probe 1.
Temperature detection probe detection means 4 determines whether or not the temperature detection probe detection means 3 is inserted, and temperature detection probe detection means 4 controls the adjustment lever 6 provided on the electromagnetic cooker main body 13 to output setting means 5 or temperature setting means 7.
This is an adjustment lever switching means for switching the changeover switch 27 to either of the circuits. The adjustment lever 6
operates the adjustment element 6a consisting of a variable resistor, multi-stage switch, etc. The temperature detection element 2 is detachably connected to the temperature setting means 7 via a plug 12 provided on the temperature detection probe 1.
is connected to the output setting means 5, and the output setting means 5 is connected to the inverter oscillation means 8, and the inverter oscillation means 8 supplies a high frequency current to a heating coil (not shown) to heat the container 9. Reference numeral 10 denotes a temperature sensing part of the temperature detection probe 1, which detects the temperature of the food to be cooked in the container 9. 11 is a lead wire of the temperature detection probe 1. The plug 12 and jack 29 of the temperature sensing probe 1 are as shown in FIG. Further, the sleeve 16 and the chip 17 are insulated by an insulating collar 21. The jack 29 provided on the electromagnetic cooker main body 13 is composed of a tip spring 18, a sleeve spring 19, and an insulating plate 20, and the tip spring 18 and sleeve spring 19 are connected to the temperature setting means 7.
It is connected to the. Further, a light emitting diode 14 is connected to the plug socket 30 of the jack 29 through a window.
and a phototransistor 15 are provided facing each other.

To explain the operation of the above configuration, when the plug 12 of the temperature detection probe 1 is inserted into the jack 29 provided on the electromagnetic cooker main body 13, the state shown in FIG. 3 is achieved. A light emitting diode 14 and a phototransistor 15 are installed facing each other in the insertion port 30, and when the sleeve 16 of the plug 12 blocks the light from the light emitting diode 14, it is possible to detect that the plug 12 of the temperature detection probe 1 is inserted. Detect. That is, as shown in FIG. 4, since the light from the light emitting diode 14 is blocked, the phototransistor 15 is turned off, and a voltage is applied to the base of the transistor 26 via the resistor 23, causing the transistor 2
6 is turned on, current flows through the relay coil 25 connected to the collector, and the changeover switch 27 closes the contact 27b.
The adjusting element 6a connected to the common terminal of the relay is connected to the temperature setting means 7 and can be adjusted by the adjusting lever 6 to set an arbitrary temperature suitable for cooking the food in the container 9. I can do it. Also, when the plug 12 is unplugged, the resistor 2
2 flows to the light emitting diode 14, turning on the phototransistor 15, the transistor 26 is turned off, and the relay 25 is also turned off, the changeover switch 27 is switched to the contact 27a side, and the adjustment lever 6 is set to The output can be adjusted and arbitrarily set to a value suitable for cooking the food in the container. For example, when the adjustment lever 6 is set to 300W, the output is set by the output setting means 5.
It works by adjusting it to 300W.

That is, when the plug 12 of the temperature detection probe 1 is removed, cooking can be performed by adjusting the output, and when the plug 12 of the temperature detection probe 1 is inserted,
The temperature of the food or heating medium can be controlled by inserting the temperature detection probe 1 into the food to be cooked in the container 9 on the electromagnetic cooker.

Effects of the Invention According to the present invention, since the temperature sensing element is directly inserted into the food to be cooked, the temperature of the food to be cooked can be controlled accurately and stably, and the temperature can be controlled over a wide range from low to high temperatures, which was previously impossible. is possible. In addition, when the temperature detection probe is not inserted into the electromagnetic cooker main body, the output setting means and adjustment element are connected and work to keep the output power of the electromagnetic cooker constant, and the temperature detection probe is inserted into the electromagnetic cooker main body. When inserted, the temperature detection element of the temperature detection probe is connected to the temperature setting means, and the output of the electromagnetic cooker is controlled by the temperature setting means so as to keep the temperature in the food constant. In other words, simply by inserting or removing the temperature detection probe into the electromagnetic cooker body, the changeover switch changes, and the adjustment element operated by the adjustment lever is connected to the output setting means or temperature setting means, and the output and temperature can be adjusted. in,
It is extremely easy to use and practical.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an electromagnetic cooker showing an embodiment of the present invention, Fig. 2 is a perspective view of the same external appearance, Fig. 3 is a side sectional view with a temperature detection probe inserted, and Fig. 4 is an adjustment lever. FIG. 3 is a circuit diagram showing an example of a switching means. DESCRIPTION OF SYMBOLS 1...Temperature detection probe, 2...Temperature detection element, 3...Temperature probe detection means, 4...Adjustment lever switching means, 5...Output setting means, 6...Adjustment lever, 6a...Adjustment element, 7 ... Temperature setting means, 8 ... Oscillation circuit, 9 ... Container, 14 ... Light emitting diode, 15 ... Phototransistor, 27 ...
...Switch.

Claims (1)

[Claims] 1 The electromagnetic cooker main body is equipped with an output setting means, a temperature setting means, and an inverter oscillation means for heating the container, and the output setting means and the temperature setting means each include an adjustment element operated by an adjustment lever via a changeover switch. A temperature detection probe incorporating a temperature detection element for detecting the temperature of the food to be cooked in the container is provided in the electromagnetic cooker body so that it can be inserted and removed freely, and the temperature detection probe is inserted into the electromagnetic cooker body. When not in use, connect the output setting means and adjustment element, and when the temperature detection probe is inserted into the electromagnetic cooker body, connect the temperature detection element of the temperature detection probe and the temperature setting means, and switch the changeover switch. An electromagnetic cooker equipped with an adjustment lever switching means that connects a temperature setting means and an adjustment element.