JPS5839291Y2 - microwave oven - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a microwave oven equipped with a program processing function that performs heating cooking operations based on cooking program information stored in a cooking card.

In conventional microwave ovens, cooking time, cooking method, etc. are manually operated and set for each cooking using an operation switch or a selection switch.

Therefore, in the past, a cook had to set the optimum time, high frequency output, etc. for each cooking, and the setting operation was very troublesome.

Therefore, cooking program information is stored in a cooking card in advance, the program information of this cooking card is read and stored in the memory of the device, and the heating cooking operation is executed based on the program information stored in the memo. A card reader type microwave oven was developed.

In this case, in a card reader type microwave oven, the cooking card inserted into the main body of the device is held in a predetermined position, and the reading head section is moved in a predetermined direction to sequentially read program information. Alternatively, a so-called card transfer type is adopted in which the reading head is fixed and the cooking card is conveyed at a constant speed.

However, in all of the above cases, a drive mechanism is required to transport the head or the card, resulting in various inconveniences such as a complicated device configuration, an increase in size, and an increase in product cost.

This idea was developed in view of the above circumstances, and it is a microwave oven that does not require any conveyance drive mechanism for the card or reading unit, and can reliably read cooking program information stored on a card with a simple and inexpensive configuration. The purpose is to provide

An embodiment of this invention will be described below with reference to the drawings.

Figures 1a and 1) show an example of the structure of a cooking card used in the microwave oven of this invention. A plurality of step forming portions 2, 2, . . . for storing cooking program information are allocated in a matrix, and predetermined step forming portions 2, .
A step is formed.

That is, for example, only the step forming portion 2 corresponding to program data bit 1 has a convex portion 2a.
. . . is formed and the step forming portion 2 corresponds to 0.
- is a flat surface with no steps formed.

FIG. 2 shows an example of the configuration of a microwave oven according to this invention, in which 10 is the main body of the device, 11 is a cooking chamber, and 12 is a console section.

The console section 12 is provided with a display section 13, a cooking start switch 14, a power switch 15, etc., and an opening 16 is formed in which the apparatus main body 10 is placed.
A switch board 17 having a plurality of switching elements S corresponding to the step forming portions 2, 2 of the card 1 is arranged at a predetermined interval in the inner direction of the card 1. .

Furthermore, a card holding member 18 for holding the card 1 in a fixed position is provided in the opening 16 so that the surface of the card 1 inserted from the outside faces the switch board 17 and is held there. .

Further, the operation panel 19 is supported by a hinge member 22 so as to be openable and closable so as to close the opening 16.

On the surface of this operation panel 19 is a key switch 20 for manually inputting cooking program information, etc.
and an opening/closing device 21, etc. are provided on the back side of the operation panel 19, and a card presser for pressing the front side of the card 1 against the switching element S of the switch board 17 with a predetermined pressure. An elastic member 23 for use is provided.

FIG. 3 shows the state when the operation panel 19 is closed after the card 1 is set in a predetermined position in the opening 16. At this time, the switching element S of the switch board 17...
. . . is a convex step forming portion 2a of the card 1.
Only those corresponding to * are pressed simultaneously by the convex portions.

FIG. 4 shows the circuit configuration of the main parts, and 101 is a magnetron M for heating the food to be cooked set in the heating cooking chamber 11, a transformer T for controlling the operation of this magnetron M, and an output switching circuit. A microwave generating section consisting of an SC or the like; 102 a memory for storing cooking program information obtained from the switch board 17, key switch 20, etc.; 103 a read/write control for this memory 102 and information stored in the memory 102; This is a processing device configured by, for example, a microcomputer, which controls the entire device including heating and cooking process control based on cooking program information.

To explain the operation here, first, a cook sets the food to be cooked in the heating cooking chamber 11, opens the operation panel 19 provided in the console section 12, and inserts the pre-programmed card 1 into the main body of the device. 10 at a predetermined position defined by the card holding member 18 in the opening 16.

Thereafter, the operation panel 19 is closed and the cooking start switch 14 is operated.

The detection signal of this cooking start switch 14 is sent to the processing device 103.
The cooking program information according to the on/off contents of each switching element S of the switch board 17 is read at high speed by electrical scanning control under the control of the processing device 03. , memo +710
Written to 2.

After writing a predetermined amount of program information into the memory 102, the processing device 103 reads the program information stored in the memory 102, and controls the operation of the microwave generator 101 based on the read program information. .

This allows the heating and cooking operation to be performed according to the program information.

Furthermore, when setting a cooking program manually without using the cooking card 1 and performing heating cooking according to the program, the desired cooking program information can be input by operating the key switch 20. Program information input from the key switch 20 is written into the memory 102 under access control of the processing device 103.

After setting the program, by operating the cooking start switch 14, the heating cooking operation according to the program information stored in the memory 102 is executed in the same manner as described above.

In particular, the cooking card 1 is inserted into the operation panel 1 of the console section 12.
9, there is no inconvenience such as having to control the installation location of the main body of the device due to the presence of the setting section, there is no need to increase the size of the device, and all operations can be easily controlled. Since this can be done from the console section 12, operability can also be improved.

In the above-described embodiment, the processing device 103 determines that a predetermined amount of program information has been stored in the memory 102 and automatically starts the cooking operation, but the present invention is not limited to this. Separately from the step forming sections 2, 2, . The processing device 103 may be configured to start storing the switching element contents of the switch board 17, that is, program information, in the memo 102 upon receiving the element operation signal.

Further, in the above embodiment, the front surface of the card 1 is moved to the switch board 17 by the operation panel 19 provided with the key switch 20.
Although the configuration is such that the card 1 is pressed against the switch board 17, the present invention is not limited to this. For example, the card 1 may be pressed against the switch board 17 using the pressing force of the cooking start switch 14.

Furthermore, in the above embodiment, the convex step forming portion 2...
The cooking program information is stored in the card 1 by the flat step forming part 2, but the invention is not limited to this, and for example, by combining a recessed part and a flat part, or a convex part and a recessed part. Cooking program information may be stored, and separate cooking program information may be stored on the front and back sides of the card 1.

As detailed above, this invention provides a microwave oven that can reliably read cooking program information stored on a card with a simple and inexpensive configuration without requiring any conveyance drive mechanism for the card or reading section. can be provided.

[Brief explanation of the drawing]

The figure shows an example of this invention.
Figure 2 is a front view and side view showing the configuration of the card, Figure 2 is a perspective view showing the external appearance of the microwave oven, Figure 3 is a side view showing the arrangement of the card and switch board, and Figure 4 is the main circuit. It is a block diagram. 1...Cooking card (card), 2,2...
・・Step forming part (for storing cooking program information), east・
...Apparatus body, 11...Heating cooking chamber, 1
2... Console part, 14... Cooking start switch, 16... Opening, 17...
・Switch board, 18... Card holding member,
19...Operation panel, 20...Key switch, 101...Microwave generator, 102
...Memory, 103...Processing device, S
, S...Switching element.

Claims (1)

[Scope of utility model registration request] An operation panel supported by the main body of the device so as to be openable and closable, a cooking card having a step storage surface storing cooking program information using a plurality of step portions, and a cooking card formed in the main body corresponding to the operation panel and storing the cooking card. A program information reader comprising: a card holding mechanism for holding a cooking card; and a plurality of switching elements that face a step memory surface of a cooking card held by the card holding mechanism and are operated simultaneously by the step portions of the step memory surface. 1. A microwave oven comprising: a detecting section, and automatically cooking according to the detection result of the program information reading detecting section.