JPS58210418A - Electronic oven - Google Patents

Abstract

PURPOSE:To prevent an electronic oven which has an easy to operate cooking instruction inputting device, by forming an input device such that a key-board plate group consists of a plurality of key-boards having an index for reference for each food group. CONSTITUTION:An electronic oven is provided with a heating chamber 3 wherein a food is placed, a high frequency generating device for feeding a microwave excited by a magnetron 1 to the food in the heating chamber 3 through a waveguide pipe 2, and a removable key-board 10 whereto the type of a food is inputted. A key-board plate group 8 is formed with a plurality of the key-boards 10 having an index 9 for reference at each food group to form an input device. This facilitates the selection of a key, and permits the installation of a number of keys, which results in offering an electronic oven having a cooking instruction input device being easy to operate.

Description

[Detailed description of the invention] The present invention relates to an input device for a microwave oven.

Conventionally, in input devices for microwave ovens, it has been common to have a flat keyboard formed on the control panel. However, in this method, the number of keys is limited by the size of the control panel, and there is a limit to how many keys can be used.

As much as possible on the other hand.

On the one hand, there was a desire to set the number of cooking menus,
The performance of microcomputers has improved to the point that they can fully meet such demands. However, how to input the cooking menu has been a major problem. The present invention aims to realize an easy-to-use input device for a microwave oven by configuring a keyboard in multiple layers. The configuration for achieving the above object will be explained below with reference to the drawings.

In FIG. 1, microwaves excited by a magnetron 1 are guided into a heating chamber 3 through a liquid guide pipe 2 and absorbed by the food inside the heating chamber 3.

FIG. 2 is an external view of a conventional microwave oven, in which a keyboard 4 is provided in a plane on a control panel section 6.

FIG. 3 shows an example in which a keyboard box 6 is mounted on the control panel section 6. When the open button 7 is pressed, the lid 7 of the keyboard box 6 opens, and the layered keyboard plate group 8 opens.
will appear and you will be able to input.

4th [MJ is a piece showing the inside of the keyboard box 6. The keyboard plate group 8 is composed of a plurality of keyboards 1o each having a search ear 9 for each food group. Information regarding which card has been selected can be identified by selectively pressing the select switch group 11 shown in FIG. 5 with the ears 9 of the keyboard 1o.

No. 6 C is an electronic route map that inputs information from the keyboard plate group 8. Information regarding which keyboard was selected is distinguished depending on which switch in the selection switch group 11 was pressed. If 11-3 is pressed here, a signal appears at terminal 85 of microcomputer 12.

Also, which switch (menu) on the keyboard has been selected can be determined by pressing the menu switch group 13 at the output terminals (R1, R1,
It is determined based on which terminal of the microcomputer 12 (K1, K2, Ks, K4) the signal was output from and which terminal of the microcomputer 12 the signal was input to. Ru. For example, the fact that the menu switch 13-1 has been pressed is determined by outputting a signal from the output terminal R4 and determining that there is human power at the input terminal 1. Then, the manually prepared menu is determined inside the microcomputer 12, and the cooking time or menu name is displayed on the display tubes 14-iL, 14-1). relay 1
5-a and 15-b are relays that control activation of microwaves.

FIG. 7 shows an example in which the keyboard box 6 is detachable from the control panel section 5. A magnet 16 is embedded in the control panel section 5 and is attached to the control panel section 5 by adsorbing the magnetic material 17 forming the back surface of the keyboard box 6. Therefore, the magnetic force 1
/C If you flip the keyboard box 6 and pull it off, the result will be as shown in FIG. 7 (you can hold the keyboard box 6 in your hand and operate the keys.

FIG. 8 is a block diagram of an electronic circuit for making the keyboard box 6 removable. The signals from the select switch group 11 and the menu switch group 13 are -
Electron] [11 It is decoded and modulated by the path 18 and emitted from the oscillator 19. The information is received by the receiver 2o, demodulated by the demodulator 21, and becomes manual data of the microcomputer 12.

FIG. 9 is an electric diagram of the microwave oven. The AC heavy pressure of 100V is R - switch 21 that monitors that the microwave door 20 is closed is N, 011 is turned on VC, and mechanical switch 2 that commands the start of microwave heating.
2 is closed and contacts 23 and 24 of relay 15a+16-b are 1'11, +-'is It,
The primary side of the transformer 25 is marked JJ, and the secondary +1llI
A high voltage is induced at V, and magnetron 1 is excited at 7.
do. When the contact 24 of the relay 15-b is opened, the oscillation of the magnetron 1 is stopped. The output of one micro-stimulator is controlled by turning on and off the relay 15-b.

As shown above, the input keyboard is arranged in layers.

Because they are grouped by food category, keys can be easily selected and a large number of keys can be installed.
An easy-to-use menu input device can be constructed. Also, since the lid is attached, the cards will not fall apart. Furthermore, by making it removable, it becomes possible to operate it in the hand, even when away from the microwave oven, and on the other hand, it becomes possible to realize a microwave oven with an easy-to-use input device.

[Brief explanation of drawings]

Figure 1 is a cutaway front view of a microwave oven, Figure 2 is an external view of a conventional microwave oven, Figure 3 is a diagram of a control panel of a microwave oven according to the present invention, and Figure 4 is an input keyboard. , FIG. 6 is a diagram showing the switch configuration of the human-powered keyboard, FIG. 6 is a circuit diagram showing an embodiment of the electronic circuit that implements the present invention, and FIG. 7 (4°TB) is a side view of the human-powered keyboard. FIG. 8 is a circuit diagram showing another embodiment of an electronic circuit for realizing the present invention, and FIG. 9 is an electric circuit diagram of a microwave oven. 3...Heating complete, 1:...Magnetron,
6... Keyboard box, 7... Lid, 16.17... Magnetic material, 5... Control panel section. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
1j<1 2nd N 3rd figure f144 1'4'? 1 5 F＜ −” /Q □” 1 Category −

Claims (1)

[Scope of Claims] (1) A heating chamber in which food is placed and a high-frequency generator for supplying high-frequency energy to the food in the heating chamber, and a keyboard for inputting the type of food; A microwave oven having an input device formed of multiple layers. ■ Claim 1 in which the keyboard portion is covered
Microwave oven as described in section. (9) The microwave oven according to claim 1, wherein the keyboard portion is removable.