JPH09184634A - Electronic oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability of an electronic oven utilizing an IC card. SOLUTION: A card connector is provided in an illumination lamp exchanging opening 5 in a cooking chamber. The opening 5 is closed with a cover 6, sealed so as to prevent oil and vapor from flowing in from the outside. When a cooking program stored in a microcomputer in a body is desired to be rewritten, the cover 6 is opened and the IC card is attached to the card connector, and once a predetermined operation is performed with an input key on an operating part 2, data is transferred from the IC card to the microcomputer. Since in a normal heating cooking operation the opening 5 is closed, a foreign matter is prevented from adhering to the card connector.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a microwave oven,
Particularly, it relates to a microwave oven suitable for business use.

[0002]

2. Description of the Related Art A plurality of cooking programs are stored in an IC card, which is a small-sized and large-capacity external storage medium, and the cooking is selected from a cooking menu stored in a microwave oven main body. Microwave ovens are known to perform. FIG. 4 shows Japanese Patent Laid-Open No. 63-23111.
It is a perspective view which shows the external appearance of the microwave oven of the 9th publication. In this microwave oven, a card insertion slot 3 is provided on the operation unit 2 on the front surface of the housing 1, and when the cook inserts the IC card 4 into the card insertion slot 3 and selects a desired cooking menu by operating the input keys, The cooking program corresponding to the cooking menu is read from the IC card 4 into the microcomputer inside the main body, and the heating and cooking operation is executed in accordance with this.

[0003]

By the way, in so-called family restaurants, convenience stores, etc., a large number of cooking menus are added or changed, or new menus are switched relatively frequently. As such, the removable IC card and the like as described above are very useful. However, the contact of the card connector for mounting the IC card is very delicate, and thus a contact failure is apt to occur. Especially, the cook touches the contact with wet hands, or steam or oil vapor during cooking. If is attached to the contacts, failure will occur immediately.

The present invention has been made to solve the above problems, and an object thereof is to provide a microwave oven which uses an IC card as described above and which has few failures and is highly reliable. To provide.

[0005]

Means for Solving the Problems The present invention, which was conceived to solve the above problems, provides a microwave oven for performing heating and cooking using an external storage medium in which a cooking program is stored. A recess formed on a part of the outer side and having an openable / closable lid to maintain airtightness when closed; b) a mounting portion for the external storage medium disposed inside the recess; and c) the mounting portion. Control means for reading all or part of the stored cooking program from the external storage medium mounted on the storage means into the storage means inside the main body.

It is preferable that the recess also serves as an illumination room in which a lamp for irradiating the interior of the cooking cabinet is replaceably mounted.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the microwave oven according to the present invention, a card connector for mounting an IC card is installed in a recess formed on the top surface or side surface of a housing. This recess is sealed so as to prevent foreign matter from entering from the outside and steam or the like from the cooker side inside the main body when using a normal microwave oven. When rewriting the cooking program stored in the microcomputer inside the main body, first remove the lid of the recess, insert the IC card storing the new cooking program into the card connector, and operate the input key to operate the IC card. To the microcomputer, the IC card is removed and the lid of the recess is closed again when the necessary data transfer is completed.

Therefore, according to the present invention, the recessed portion can be opened for a short time only when necessary, so that the mounting portion such as the card connector can be protected from foreign matter such as water, and contact failure and insulation failure can be prevented. It is possible to prevent such troubles.

The lid of the recess may be attached to the housing with a screw or the like, or may have a structure in which an appropriate fitting portion is formed and opened / closed by a pressing force. In any case, in order to ensure airtightness, it is desirable to seal the contact portion between the lid and the housing with rubber or resin.

[0010] In a microwave oven for business use, generally, a lamp exchange chamber closed with a lid is provided on the top surface or side surface of the housing so that the lamp for illumination inside the cooking cabinet can be easily replaced. Therefore, by increasing the airtightness of the lamp exchange chamber and providing the card connector there, the above-described structure can be obtained without complicating the housing.

[0011]

1 is an external perspective view showing an embodiment of a microwave oven according to the present invention. An opening 5 for replacing the lamp in the cooking cabinet is provided on the top surface of the housing 1. The opening 5 is usually sealed by attaching a lid 6 with a screw. In order to ensure airtightness when the lid 6 is attached, a seal member such as rubber is attached to the contact surface of the rear side of the lid 6 with the periphery of the opening 5. FIG. 2 is a view showing the inside of the opening 5 with the lid 6 removed. There are two lamps 7 inside the opening 5.
And a card connector 8 are provided. A transparent window such as glass is formed inside the opening 5, and the light from the lamp 7 reaches the inside of the cooking cabinet through this window.

FIG. 3 shows a schematic circuit configuration of the microwave oven. For a microcomputer 9 for controlling the entire circuit, a cooking menu and cooking stored in a memory chip mounted on the IC card 4 via a card connector 8 on which the IC card 4 is mounted. Data consisting of a program is input. Further, the input unit operation information is given from the operation unit 2, and a signal is supplied to the operation unit 2 to perform a display corresponding to the input key operation or a display for notifying the cooker of the cooking condition.
The microcomputer 9 has a rewritable memory 9a for storing a cooking menu and a cooking program, and controls the heating power of the heating source 10 according to the cooking program stored in the memory 9a to perform the heating cooking. Run.

The operation of updating the data stored in the memory 9a will be described below with reference to FIGS. In this case, the cook (or the worker who performs the data updating work) removes the lid 6 of the opening 5 which is normally closed, and inserts the IC card 4 storing new data into the card connector 8. To do. Then, a predetermined key input operation is performed from the operation unit 2. The microcomputer 9 is the IC card 4
Detects whether or not is attached to the card connector 8,
When the IC card 4 is mounted, a process of reading the data stored in the memory chip in the IC card 4 and storing the data in the memory 9a is executed by operating the predetermined input key. When the reading of all the data is completed, the microcomputer 9 outputs a signal to the operation unit 2 and thus the operation unit 2
A character or symbol indicating “completion of data transfer” is displayed on the display panel. When this message appears, the cook pulls out the IC card 4 and attaches the lid 6 of the opening 5 to the original state.

It is also possible to correct the cooking menu and cooking program stored in the memory 9a as described above by operating the input keys of the operation unit 2. For example, when it is desired to correct the heating temperature in the cooking program of a certain cooking menu, the microcomputer 9 first reads the cooking menu sequentially from the memory 9a and displays it on the display panel of the operation unit 2.
When the cook selects a desired cooking menu and operates a predetermined input key, the microcomputer 9 reads a cooking program corresponding to the cooking menu from the memory 9a, and a changeable parameter in the cooking program, for example, heating temperature,
Display the heating time, etc. When the cook confirms this display and corrects an appropriate numerical value, the corrected numerical value is written in the memory 9a as a new parameter.

Further, when updating the data stored in the memory 9a, it is possible to select and read only a necessary cooking menu and a part of the cooking program of a part of the data stored in the memory chip of the IC card 4. You may allow it. In this case, if the operator performs a predetermined input key operation after the IC card 4 is attached to the card connector 8,
The microcomputer 9 reads only the cooking menu from the IC card 4 and sequentially displays it on the display panel of the operation unit 2. The cook selects the desired cooking menu while checking this display, and when all selections have been completed, "end selection"
Instruct. In response to this instruction, the microcomputer 9 sends the cooking program corresponding to the selected cooking menu to the IC card 4
Read from the memory and store this data in the memory 9a.

Although the opening 5 for lamp replacement is provided on the top surface in the embodiment of FIG. 1, it may be provided on the side surface of the housing 1. Further, the lid 6 of the opening 5 may have various structures such as a generally known fitting type opening / closing door structure, instead of the structure of screwing. However, in any case, it is necessary to sufficiently provide a seal or the like so as to ensure airtightness at the time of closing.

Further, as the external storage medium, various types such as an optical scanning type card and a magnetic card other than the IC card can be used.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an embodiment of a microwave oven according to the present invention.

FIG. 2 is a view showing the inside of the opening shown in FIG.

FIG. 3 is a circuit configuration diagram of an embodiment of a microwave oven according to the present invention.

FIG. 4 is an external perspective view of a conventional microwave oven.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Operation part 4 ... IC card 5 ... Opening part 6 ... Lid 7 ... Lamp 8 ... Card connector 9 ... Microcomputer 9a ... Memory

Claims (2)

[Claims] 1. A microwave oven for performing heating and cooking using an external storage medium storing a cooking program, comprising: a) a part formed on the outer side of a housing, which has an openable / closable lid and is airtight when closed. All of the cooking programs stored from the concave portion that retains the property, b) the mounting portion for the external storage medium disposed inside the concave portion, and c) the external storage medium mounted in the mounting portion. Or, a control unit for selectively reading a part of the data into a storage unit inside the main body, and a microwave oven. 2. The microwave oven according to claim 1, wherein the recess also serves as a lighting chamber in which a lamp for irradiating the interior of the cooking cabinet is replaceably mounted.