JP2006012439A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent malfunction by wrong operation of an operation part with a simple structure in a cooker including the operation part arranged in a proper position of the top face of a cooker body. <P>SOLUTION: The cooker comprises a top plate for placing a cooking matter installed to the top face of the cooker body, a heat source arranged under the top plate, and the operation part for setting and inputting heating power or the like of the heat source in a proper position of the top face, and is adapted to heat the cooking matter by controlling the heat source by a control means based on input from the operation part or the like. The control means returns, in the case that the input operation from the control part is continued for a preset predetermined time or more, the operation to the operation before input operation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cooking device that includes a top plate that heats an object to be cooked on the top surface of a cooking device body, and has an operation unit disposed at an appropriate position on the top surface.

For example, in a heating cooker such as an electromagnetic cooker, a top plate made of heat-resistant glass is mounted on the top surface of the appliance body, and a heat source such as an induction heating coil is disposed under the top plate, In what heats by putting a to-be-cooked object, such as a pan, on the upper side, as shown in Patent Document 1, for example, there is one in which an operation unit is arranged on the top surface of the instrument body such as in front of the top plate.
Japanese Patent Laid-Open No. 10-214677

  On the other hand, in the configuration shown in Patent Document 1, since the operation part is arranged on the surface of the top plate 22, there is a risk of erroneous operation when a pan or the like approaches the operation part, and this erroneous operation is prevented. Therefore, if the projections 33, 34, and 35 are provided between the operation unit and the heat source, there is a problem that it is difficult to clean the top plate.

  Then, this invention aims at preventing the malfunctioning by the approach of the to-be-cooked item etc. to the operation part in what has arrange | positioned the operation part to the top | upper surface of a cooking appliance main body.

  The structure of Claim 1 of this invention mounts the top plate which mounts a to-be-cooked object on the top | upper surface of a cooking appliance main body, arrange | positions a heat source under this top | top plate, and arrange | positions a heat source in the appropriate place of a top | top surface. An operation unit for setting and inputting a thermal power and the like is provided, and the object to be cooked is heated by controlling the heat source based on the input from the operation unit by the control unit. In the case where the operation continues for a predetermined time or more, the operation returns to the operation before the input operation is performed.

  According to the configuration of claim 2 of the present invention, a top plate for placing an object to be cooked is mounted on the top surface of the cooker body, a heat source is disposed below the top plate, and the heat source is placed at an appropriate position on the top surface. An operation unit for setting and inputting a thermal power and the like is provided, and the object to be cooked is heated by controlling the heat source based on the input from the operation unit by the control unit. The configuration is such that an input operation is not accepted when the operation continues for a predetermined time or more.

  According to the third aspect of the present invention, a top plate for placing the food to be cooked is mounted on the top surface of the cooker body, a heat source is disposed below the top plate, and the heat source is placed at an appropriate position on the top surface. An operation unit for setting and inputting a thermal power and the like is provided, and the object to be cooked is heated by controlling the heat source based on the input from the operation unit by the control unit. The configuration is such that all input operations from the operation unit are not accepted when the set time is continued for a predetermined time.

  According to a fourth aspect of the present invention, in the configuration of the first to third aspects, the control means is provided with a voice function, and when the input operation from the operation unit continues for a predetermined time or more, a warning message is given by voice. It is comprised so that this may be notified.

  According to a fifth aspect of the present invention, in the configuration of the first to third aspects, the control means is provided with a human body sensor for detecting the approach of the human body, and an input operation for a predetermined time or more is detected when the human body sensor detects the approach of the human body. Is configured to accept.

  According to the configuration of the first aspect of the present invention, when the input operation from the operation unit is continued for a predetermined time or more, the operation is returned to the operation before the input operation is performed. Thus, it is possible to prevent malfunction due to the approach to the operation unit such as a pan or a spoon with a relatively simple configuration without providing a guard member for preventing the approach of an object to be cooked.

  According to the configuration of claim 2 of the present invention, when the input operation from the operation unit continues for a predetermined time or longer, the input operation is not accepted as invalid, a buzzer for notifying the input operation, etc. All malfunctions can be prevented.

  With the configuration according to claim 3 of the present invention, when the input operation continues for a predetermined time or more, it is configured not to accept all subsequent input operations, for example, malfunction due to movement of animals such as cats. It can be prevented.

  According to the configuration of claim 4 of the present invention, when an input operation from the operation unit continues for a predetermined time or more, a warning message is notified by voice so that an erroneous operation can be quickly notified and an erroneous operation can be performed. It is possible to prevent the interruption of cooking due to.

  According to the configuration described in claim 5 of the present invention, when the approach of the human body is detected by the human body sensor, an input operation for a predetermined time or more from the operation unit is received, so that the operation immediately after the installation of the cooker body can be performed. If you are not used to it, you can improve the usability by configuring it to accept the operation even if you operate it for a long time.

  An embodiment according to the present invention will be described first with reference to FIG. 1. Reference numeral 1 denotes a cooker body of an electromagnetic cooker that is used in a system kitchen or the like by a drop-in method. A plate 2 is mounted, and a pair of left and right induction heating coils 3 and 4 and a radiant heater 5 serving as heat sources are built in the lower part of the top plate.

  On the other hand, an operation panel 6 is disposed on the right side of the front surface of the electromagnetic cooker body 1, and a grill door 8 for the grill 7 is disposed on the left side of the operation panel so that it can be pulled out. The panel 6 is provided with a seesaw type power switch 9, a plurality of operation keys 10..., A push-push type operation knob 11. When the operation knobs 11 are pulled out by a push operation, the induction heating coils 3 and 4, the radiant heater 5 and the grill heater (not shown) in the grill 7 are energized. It is configured to set the heating power, cooking time, cooking temperature, etc. when rotating with.

  In addition, the outer peripheral edge of the top plate 2 is pressed and fixed by the top plate frame 12, and an operation unit 13 constituted by a non-contact type touch key is disposed at the front end of the top plate frame, and the top plate frame A pair of left and right intake / exhaust covers 14, 14 are detachably attached to the rear end of the plate frame 12.

  On the other hand, as shown in FIG. 2, the operation unit arranges touch areas such as a heating key 16..., A water heater key 17 and a fried food key 18 on the front or back surface of the glass plate 15 by printing. The input operation is performed by an operation circuit board, which will be described later, arranged on the back surface of the glass plate 15, and the input operation is detected by a change in capacitance due to a finger touching the touch area on the operation circuit board. It is configured to do.

  Furthermore, a liquid crystal display 19 composed of a liquid crystal display with a backlight or the like is disposed below the front portion of the top plate 2 between the induction heating coils 3 and 4. It is configured to display the cooking time, cooking temperature, etc., and is provided with LED lamps that emit a plurality of colors in front of the heating frames 20 and 20 indicating the installation position of the cooking container such as a pan. The configured arc-shaped heating state indicators 21 and 21 are arranged.

  FIG. 3 shows a part of a circuit block diagram for controlling energization to the induction heating coils 3, 4, etc. A power supply circuit 33 is connected to a commercial 200 V power supply 31 via a relay contact 32, and this power supply A main control circuit 34 constituted by a microcomputer is connected to the output of the circuit, and a voltage detection circuit 35 is connected to the power source 31 through the power switch 9, and the output of the voltage detection circuit is connected to the main control circuit. It is connected to 34 input ports.

  An inverter circuit 37 is connected to the relay contact 32 via an input power detection circuit 36, and the induction heating coils 3 and 4 and the current value supplied to the coil are detected at the output of the inverter circuit. A coil current detection circuit 38 is connected, and an output of the input power detection circuit 36 is connected to an input port of the main control circuit 34.

  Furthermore, the input port of the main control circuit 34 is connected to the output of a human body sensor 39 mounted at an appropriate position on the operation panel 6 via a human body detection circuit 40 and constitutes the inverter circuit 34 (not shown). The outputs of the element temperature sensors 41 and 41 for detecting the temperature of the known IGBT are connected via the temperature sensor detection circuit 42 and the operation keys 10... Arranged on the operation panel 6 are connected via the key detection circuit 43. Connected.

  The output port of the main control circuit 34 is connected to the radiant heater 5 and the upper and lower grill heaters 45, 45 disposed in the grill 7 via a heater drive circuit 44, and via a cooling fan drive circuit 46. A cooling fan 47 mounted in the cooker body 1 is connected, and a relay drive circuit 48 for operating the relay contact 32 is connected.

  Further, an LED lamp 50... For displaying an ON / OFF operation state of the operation keys 10... Arranged on the operation panel 6 is connected to the output port of the main control circuit 34 through the LED drive circuit 49. ing.

  An audio drive circuit 51 is connected to the output port of the main control circuit 34. A speaker 52 is connected to the output. Based on the output of the main control circuit 34, an audio message for operation, an operation error, and a caution when an abnormality occurs. A message is announced.

  The input / output port of the main control circuit 34 is connected to a memory 53 and a communication circuit 54 constituted by a nonvolatile memory for storing various data, and this communication circuit is a sub-control circuit constituted by a microcomputer. 60 is connected.

  The bottom port thermistors 62 and 63 arranged near the center of the induction heating coils 3 and 4 are connected to the input port of the sub-control circuit 60 via the temperature detection circuit 61, and the liquid crystal display is connected to the output port. 19 and the LED lamps 65 of the heating state indicators 21 and 21 are connected via an LED drive circuit 64.

  Furthermore, the input / output port of the sub-control circuit 60 is connected to the heating power key 16... Of the operation unit 13, the hot water key 17, the deep-fried food key 18, etc. via the key detection microcomputer 66. An input operation by these keys is detected by a change in capacitance due to the approach of a finger.

  Thus, for example, the operation in the case of performing cooking using the induction heating coil 4 on the right side in the configuration of the present invention will be described. After the power switch 9 is turned on, the power switch 9 is turned on, and then the knob 11a of the operation panel 6 is pushed and pulled out, and then the knob 11a is rotated or the heating power is set by the heating key 16 ··· of the operation unit 13. By rotating the post-pick 11a, these operations are detected by the main control circuit 34 and the sub-control circuit 60, energization of the induction heating coil 4 is started, and cooking is started.

  On the other hand, when the so-called touch keys such as the heating key 16..., The water heater key 17, and the deep-fried food key 18 of the operation unit 13 are operated, for example, as shown in the flowchart of FIG. After storing the setting contents such as the set heating power at the start of heating, cooking time, cooking temperature, etc. in the memory or the memory 53 in the main control circuit 34, the process proceeds to S3 to detect whether there is a key input from the operation unit 13 or not. If not, the process waits. If there is, the process proceeds to S4, performs an operation corresponding to the input operation, and proceeds to S5.

  Next, in S5, it is determined whether or not the key-on operation performed in S4 is longer than a predetermined time (for example, 5 seconds). If so, the process proceeds to S6 and returns to the operation state stored in S2. The warning message is notified by voice, and if it is less than the predetermined time, the process returns to S2 and the operation is continued.

  With these configurations, in a touch key that does not have a feeling of clicking, when the key of the operation unit 13 is turned on for a predetermined time or more for some reason, such as an object placed on the operation unit 13 or an animal walking, By configuring so that all operations are returned to the state before key input is performed, malfunctions can be reliably prevented.

  In addition, when a key operation continues for a predetermined time or longer, a warning message is notified by voice, so that the user can be quickly notified of an erroneous operation or malfunction, thereby canceling the cause of the erroneous operation and failing to cook. Etc. can be prevented.

  FIG. 5 is a flowchart showing another embodiment of the present invention. When heating is started in S11, it is detected whether or not there is a key input from the operation unit 13 in S12. The process proceeds to S13, where it is determined whether or not the key-on operation has continued for a predetermined time or more. If not, the process proceeds to S14 to accept a key input, perform a control operation corresponding to the input, and then return to S12. To continue the heating operation.

  On the other hand, if the ON operation has been continued for a predetermined time or longer in S13, the process proceeds to S15 without accepting key input, and a warning or caution message is notified by a buzzer or voice, and then the process returns to S12 to perform the heating operation. Continue.

  With these configurations, when a key-on operation continues for a predetermined time or longer, the key input is not accepted, thereby preventing a malfunction due to an erroneous operation such as when a spoon is placed on or near the key. Things that can be done.

  FIG. 6 shows another embodiment of the present invention. When heating is started in S21, it is detected whether or not there is a key input from the operation unit 13 in S22. In step S25, it is detected whether or not the on-operation has been performed for a predetermined time or more. On the other hand, if the on-operation is less than the predetermined time, the process proceeds to S24 to perform an operation corresponding to the input key, and then the subsequent operation is continued.

  With these configurations, even if key input is performed from the operation unit 13, it is detected whether or not this key operation continues for a predetermined time or longer, and if it does not continue, an operation corresponding to the operated key is performed. It is possible to surely prevent malfunction due to.

  FIG. 7 is a flowchart showing another embodiment of the present invention. When heating is started in S31, the setting at the start of heating is stored in the memory in S32 as in FIG. If there is a key input, the process proceeds to S34, where it is determined whether the human body sensor 39 detects a human body. When a human body is detected, the process proceeds to S35, and the heating operation corresponding to the key input is performed. I do.

  With these configurations, when the approach of the human body is detected by the human body sensor 39, all the key inputs from the operation unit 13 are accepted. Usability can be improved by accepting a key input even if it is turned on. In this embodiment, all key inputs are accepted, but the key operation time is set in steps, and a second predetermined time (for example, 10 seconds) longer than the predetermined time is set. When the input operation is continued for the second predetermined time, a warning may be given by a buzzer or voice.

It is a perspective view which shows the Example by this invention. It is a top view which similarly shows the Example of the principal part. It is a block diagram which similarly shows the Example of a control part. It is a flowchart which similarly shows the Example of operation | movement of the principal part. It is a flowchart which similarly shows the other Example of operation | movement of the principal part. It is a flowchart which similarly shows the other Example of operation | movement of the principal part. It is a flowchart which similarly shows the other Example of operation | movement of the principal part.

Explanation of symbols

1 Cooker body 2 Top plate 3 Induction heating coil (heat source)
4 Induction heating coil (heat source)
13 Operation part 22 To-be-cooked object 34 Main control circuit (control means)
39 Human Body Sensor 60 Sub Control Circuit (Control Unit)

Claims (5)

An operation unit for mounting a top plate for placing an object to be cooked on the top surface of the cooker body, placing a heat source below the top plate, and setting and inputting the heat power of the heat source at an appropriate position on the top surface. And the heating means is heated by controlling the heat source based on the input from the operation unit or the like by the control means, and the control means continues the input operation from the operation part for a predetermined time or more. A cooking device characterized by being configured to return to the operation before the input operation is performed. An operation unit for mounting a top plate for placing an object to be cooked on the top surface of the cooker body, placing a heat source below the top plate, and setting and inputting the heat power of the heat source at an appropriate position on the top surface. And the heating means is heated by controlling the heat source based on the input from the operation unit or the like by the control means, and the control means continues the input operation from the operation part for a predetermined time or more. When it does, the cooking device characterized by not being able to receive the said input operation. An operation unit for mounting a top plate for placing an object to be cooked on the top surface of the cooker body, placing a heat source below the top plate, and setting and inputting the heat power of the heat source at an appropriate position on the top surface. And the heating means is heated by controlling the heat source based on the input from the operation unit or the like by the control means, and the control means continues the input operation from the operation part for a predetermined time or more. When it does, the cooking device characterized by having comprised so that all input operation from the said operation part may not be received. The control means is provided with a voice function, and is configured to notify a caution message by voice when an input operation from the operation unit is continued for a preset time or more. The cooking device according to 1 to 3. The control means is provided with a human body sensor for detecting the approach of the human body, and configured to accept an input operation for the predetermined time or more when detecting the approach of the human body by the human body sensor. 3. The heating cooker according to 3.

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