JPS6044569B2 - High frequency heating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a high frequency heating device, a so-called microwave oven.

Today, microwave ovens have become more multi-functional and sophisticated, and have become capable of not only output power control but also temperature control.

Furthermore, using a microcomputer etc. in the control circuit section,
It has a time display function and a timer function, and also allows the user to set the output power and cooking time arbitrarily using the keyboard, or to cook in a specific sequence. As described above, the functions of microwave ovens have been expanded and sophisticated, and while they have become programmable to a certain extent for users, their operation has become more complicated. The present invention provides a microwave oven as described above.
In particular, for those equipped with a temperature sensor and the function to detect the temperature of food, such as the selection of temperature cooking and other general cooking, etc.
The aim is to eliminate and solve the complexity that appears in the operability, etc., and at the same time to improve safety in the case where the oven door is opened during cooking to attach and detach the temperature sensor. These operations can be performed automatically simply by the operation of attaching and detaching the temperature sensor.Examples will be described below in detail with reference to drawings. FIG. 1 is a block diagram of a microwave oven according to the present invention, in which 1 is a display section consisting of a numeric display and a display lamp, 2 is a keyboard section, 3 is a control circuit section, 4 is an open main body such as an open body and a magnetron, etc. 5 is a temperature sensor section, 6 is a temperature sensor junction section, and 7 is a buzzer.

FIG. 2 is an external view of the microwave oven described in the present invention.
1 is a numeric display, 9 is an operation panel provided with a touch panel keyboard, 10 is an open door, 11 is a receptacle for a temperature sensor, 12 is a temperature sensor, and 13 is a temperature sensor jack.

FIG. 4 shows the flow of processing in determining whether the temperature sensor is attached or detached within the control circuit section.

Next, to explain the outline of its operation, first, the keyboard section 2
By the operation, the cooking pattern is stored and registered in the internal memory of the control circuit section 3. At this time, the cooking time is displayed on the display section 1. Then, cooking starts by operating the cooking start key, and the open main body 4 is controlled by the control circuit section 3.
Once the cooking time has elapsed, cooking ends. In this way, the series of operations ends. The microwave oven described in the present invention is
It has a function that uses a temperature sensor to detect the temperature of food and cook it.

In this case, it is necessary to distinguish between temperature-controlled cooking and other general cooking, which is accomplished in the following manner in the present invention. In cooking by temperature control, a temperature sensor is inserted into the food, and the state of this sensor is input into a control circuit for cooking.

The sensor and the control circuit are coupled by a temperature sensor jack 13 and an open receptacle 11 in FIG. For temperature controlled cooking and other general cooking, temperature controlled cooking patterns can be entered and executed if the sensor jack is inserted into the receptacle. In other words, when the sensor jack is inserted into the open receptacle, the receptacle. The fact that the state of the contacts provided on the handle is different from before insertion is input into the control circuit section and is determined to be temperature control. On the other hand, if the temperature sensor is removed from the receptacle under temperature control, it is determined that normal cooking is being performed based on the change in the contact point. Now, the above-mentioned insertion or removal of the sensor jack is not necessarily performed other than during cooking pattern registration or execution, and there is a possibility that the open door may be opened during registration or execution.

For example, when cooking other than temperature control is being performed, an open door is opened and a temperature sensor jack is inserted into a receptacle inside the open door. In the present invention, the jack of the temperature sensor is inserted into and removed from the receptacle as follows.

If the temperature sensor jack is inserted into the open receptacle while cooking other than temperature control is being performed, the cooking that was being performed up to that point will be canceled and the cooking pattern will also be cleared. Conversely, if the temperature sensor jack is removed from the receptacle while temperature-controlled cooking is being performed, the temperature-controlled cooking that was being performed up to that point is also stopped and the cooking pattern is also cleared. Also, when the temperature sensor jack is inserted into or removed from the receptacle during cooking pattern registration, the previously registered cooking pattern is cleared when the sensor is operated, as is the case during cooking. Note that these operations depend on the state of the contacts provided on the receptacle and the connection and removal of the sensor jack. The change in temperature is incorporated into the control circuit. Inside the control circuit, as shown in FIG. 4, a sequence is incorporated to determine whether or not temperature cooking is being performed, and to determine whether or not a temperature sensor is attached in each state. By constantly executing this sequence, the cooking setting or execution can be continued, stopped, or cleared by attaching and detaching the temperature sensor, thereby achieving the object of the present invention. The high-frequency heating device of the present invention as described above improves the operability and safety of the temperature sensor and its handling.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a high-frequency heating device showing an embodiment of the present invention, Fig. 2 is a perspective view of the same high-frequency heating device with the door open, and Fig. 3 A and b are temperature sensors set on the same display. FIG. 4 is a diagram showing the flow of processing in determining whether the temperature sensor in the control circuit section is attached or detached. 1...Display section, 2...Keyboard section,
3... Control circuit section, 4... Open main body, 5... Temperature sensor section, 6... Temperature sensor junction section, 7......・Buzzer, 8...
Numerical display, 9...Operation panel, 10...Open door, 11...Receptacle, 12...Temperature sensor, 13...Temperature sensor jack.

Claims (1)

[Claims] 1 Consists of a display and operation panel consisting of a numeric display, indicator lamps, and keyboard, a control circuit section equipped with a microcomputer and memory, a temperature sensor, and a magnetron.In addition to the cooking function by output power control,
The temperature sensor has a function of detecting the temperature of food and cooking the food with the temperature sensor, and a function of allowing the user to input a cooking pattern from the keyboard and operating the control circuit unit to cook according to the registered pattern. When the jack is inserted into a receptacle in the oven, the change in the state of the contact provided in the receptacle due to the insertion is captured in the control circuit section, and only the input operation and execution of a cooking pattern by temperature control is permitted, If the oven door is opened during cooking other than temperature control and the temperature sensor jack is inserted into the receptacle in the oven,
Changes in the state of the contacts provided in the receptacle are input to the control circuit, the cooking pattern that was being executed until the oven door is opened is stopped and cleared, the temperature sensor is connected, and the oven is turned off while temperature-controlled cooking is in progress. When the door is opened and the temperature sensor jack is removed from the receptacle in the oven, the change in the state of the contact provided in the receptacle is captured in the control circuit and the cooking pattern that was being executed until the oven door is opened is stopped. A high frequency heating device in which a clearing circuit is provided in the control circuit section.