JP5927501B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to a display operation of an induction heating cooker related to a power control system that controls power so that a breaker in a house does not fall.

  Conventionally, a power control system is connected to a home appliance or a home appliance connected to the home appliance wirelessly or by wire, and the adapter having a communication function connected to the home appliance having a communication function or the home appliance has power. When the increase operation is performed, the power control system is inquired about the power, and the power control system answers the available power calculated so as not to exceed the breaker capacity in the home, and the home appliance operates within that power. (For example, refer to Patent Document 1).

JP 2010-161828 A

  After performing an operation to increase the power consumption of the induction heating cooker, the induction heating cooker controls the power consumption value based on the available power information that is an answer to the power control system that controls the power in the house The following two methods are conceivable as behaviors until the time. One is to increase the power consumption of the induction heating cooker immediately after the operation and then suppress it after receiving the available power information, and the other is the power information that can be used after the operation. Is used to increase power consumption.

  When wireless communication is performed between the power control system and the induction heating cooker and necessary information is exchanged, it takes time to send and receive data, resulting in an inquiry time. Furthermore, when the power control system communicates with a plurality of home appliances and each home appliance communicates all at once, the communication is congested and the inquiry time increases. In the case of the method of increasing the power consumption immediately after the first operation, there is a possibility that the power will be turned on at once and the breaker will fall, and after waiting for the second inquiry result, increase the power consumption. In such a case, there is a problem that a waiting time is generated each time an operation while inquiring about the power value, and the operability is lacking.

  An object of the present invention is to solve the above-described conventional problems, and to provide an induction heating cooker that prevents a breaker from falling because it does not increase power consumption during a power information inquiry and does not feel a waiting time for operation. And

  The present invention solves the above-described conventional problem. In accordance with an operation for increasing power consumption, the display is changed as set by the operation, and while the power control system is inquired about available power information, the power consumption By maintaining the current state as it is, the power consumption is shown to the user immediately after the operation. After receiving available power information from the power control system, the power consumption is controlled according to the power information, and the previously changed display is changed to correspond to the power consumption.

According to the present invention, the power consumption is not increased during the power information inquiry, so that the breaker is prevented from dropping. Even though the power consumption is not increased, the display waits for the operation as if it is increased. The operability is improved because there is no feeling.

Whole system diagram of household appliances and power control system connected to home in Embodiment 1 of the present invention Whole structure figure of induction heating cooking appliance in Embodiment 1 of the present invention Operation sequence diagram in which power consumption increases in Embodiment 1 of the present invention The figure which shows the display part of the induction heating cooking appliance in Embodiment 1 of this invention. Sequence diagram at the time of continuous power consumption increase operation in Embodiment 1 of the present invention Sequence diagram at the time of power consumption increase operation immediately after the initial startup in Embodiment 1 of the present invention

  1st invention is the display part which displays the setting part by the some heating part which heats a to-be-heated object, the control part which controls a heating part, the operation part which sets each heating part, and the operation part The control unit has a transmission / reception unit that transmits / receives data to / from the power control system, a power determination function that determines power consumption according to available power information received by the transmission / reception unit, and power consumption of the operation unit increases. It has a function to inquire about available power to the power control system by operation, the display unit switches the display according to the operation of the operation unit, and the power determination function is in the control unit for the first predetermined time after operation of the operation unit The current power consumption is maintained as the power to be controlled and the power transmission / reception means receives available power information, or when the first predetermined time elapses, the power determination function uses the available power information received by the transmission / reception means. The power is updated accordingly, and the display unit switches the display as the power is updated, so that the breaker can be dropped without increasing the power consumption while receiving usable power information. In addition to preventing this, the display is updated immediately with the operation, so that the operation can be performed without any trouble due to the inquiry waiting time.

  The second invention is characterized in that, in particular, the first predetermined time of the first invention is updated each time an operation in which the power consumption of the operation unit increases, so that the first predetermined time is within the first predetermined time. A continuous operation performed is defined as a single operation. A time lag of 2 to 3 seconds occurs after the power consumption is determined until the power consumption of the heating unit actually increases or decreases. Therefore, the thermal power is accepted during the continuous operation, and the power information that can be used without the power control system detecting the increase or decrease in the power consumption of the induction heating cooker determined by the previous operation at the time of the power inquiry of the next operation. It will be decided. According to the second invention, the above problem can be avoided.

  In the third invention, in particular, the second predetermined time after the initial activation of the control unit of the first or second invention is within the first predetermined time after the operation of increasing the power consumption of the operation unit. If the transmission / reception means cannot receive the available power, the first predetermined time is extended, so that even if the first predetermined time is exceeded before establishing communication with the power control system after the initial startup. In the second predetermined time, the operation can be continued without updating the power consumption.

  The fourth aspect of the invention is, in particular, one of the first to third aspects of the invention, where the data received from the power control system includes information that suppresses the current power consumption. The operation that increases the power consumption is enabled by invalidating the operation that increases the power and enabling the operation that increases the power consumption when the information that suppresses the current power consumption is canceled. Later, it can be seen that the power in the house is insufficient without waiting for the first predetermined time.

The fifth invention is the invention according to any one of 1 to 4 in particular, and when a third predetermined time has elapsed since the reception of data containing information for suppressing the power currently consumed from the power control system, By enabling the operation of the operation unit to increase power consumption, the data is saved even though the power suppression information is canceled due to a communication error between the power control system and the induction heating cooker. Even when the induction heating cooker cannot be received, the available power information can be inquired by accepting the power consumption increasing operation after the third predetermined time has elapsed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a configuration diagram of a power control system according to the first embodiment of the present invention. In the first embodiment of the present invention, the power line L1 and the power line L2 on the outlet side of the distribution board 1 into which a single-phase three-wire system 200V is drawn into the home are sandwiched between the current clamps 2, respectively. Measure the power consumed at home. Here, in order to accurately measure the power consumed in the home, it is necessary to measure the voltage and calculate the power factor by looking at the voltage phase and the current phase as well. Since the fluctuation is small at the line-to-line execution voltage AC200V (or AC100V) and the frequency 50Hz (or 60Hz), and the magnitude of the power consumption can be observed only from the current value, the method of estimating the power only by the current measurement is adopted. .

  In the output line of the distribution board 1, an induction heating cooker 4 as an AC 200V system, an AC 6V system, an adapter 6a and a dryer 7 connected to an air conditioner 5a are connected to the L1 phase, and an air conditioner 5b is connected to the L2 phase. The adapter 6b, the status notification device 8, and the television 9 are connected. Here, the power measurement device 3 and the status notification device 8 are collectively referred to as a power control system 14.

  In addition, the power measuring device 3, the induction heating cooker 4, and the adapters 6a and 6b each have a communication processing unit (not shown) that communicates by radio waves as a first communication medium so as to transmit information to each other. Can do. As a radio wave communication method, a specific low power radio is used and a frequency of 920 MHz band is used. The antenna 10 is used in a communication processing unit that communicates with a first communication medium.

  The status notification device 8 also includes a communication processing unit (not shown) that communicates with the first communication medium. The status notification device 8 includes the antenna 10 like other devices, and transmits wireless communication data transmitted in the home. Intercept and collect information on each device. The status notification device 8 is a unit that can be built at low cost because it has a Web server installed therein as software and does not have display means for displaying characters, images, and the like.

  Furthermore, the status notification device 8 and the television 9 are internally provided with a second communication processing unit (not shown) for communicating with each other via a general-purpose LAN cable that is a second communication medium. The TV 9 is provided with a Web browser, and the status is notified by a screen display using a Web browser of a device having a Web client function such as the TV 9 or a personal computer (not shown) via a general-purpose LAN cable. Information collected by the device 8 can be browsed.

  Note that the general-purpose LAN is not specifically designated physically, and may be anything as long as it is a network network capable of transmission and reception using the HTTP protocol, and need not be wired.

  The hub 11 is used for branching and distributing LAN cables. The television 9 can be connected to the Internet 13 via the modem / router 12.

  In an actual home, many other devices are connected. However, in order to simplify the description, the configuration will be described below.

  FIG. 2 is a block diagram of the induction heating cooker. Three IHs (41a to 41c), which are induction heating units provided with heating coils below the top plate as heating units (41a to 41c), and a grill which is a heat transfer heating unit provided with an electric heater in the heating chamber (41d). The setting of each heating unit 41 is determined by the operation of the operation unit 43, and the setting information is displayed on the display unit 44. The control unit 42 controls the heating unit 41 according to the setting determined by the operation unit.

  FIG. 3 is a sequence diagram illustrating communication with the power control system 14 and the state of the induction heating cooker 4 when an operation for increasing power consumption is performed in the operation unit 43 of the induction heating cooker 4.

  The operation unit 43 can perform heating menu setting, heating power setting, temperature setting, timer setting, and the like. "Heating" menu to set the heating power in the heating menu, "Fukibo spill notification" menu to stop the heating when the heating power is set and the spilling is detected, "Fried food" menu to set the temperature and fry, and set the temperature There are “baked food” menus to perform, “hot water” menus to perform water heating automatically. The heating power of the “heating” menu and the “spilling notification” menu can be set in the range of heat retention and heating power 1 to 9, and the initial heating power at the start of heating is 5 heating power. Each thermal power has a range of maximum power consumption. In the case of thermal power 5, the range of maximum power consumption is 800W to 1000W. When the maximum power consumption is 800 W, the heating unit consumes 0 W to 800 W of power. A timer can be set for each menu.

  The operation of increasing the power consumption in the operation unit 43 is an operation of increasing the set thermal power at the time of starting each menu, the “heating” menu, and the “swelling notification” menu.

  When an operation for increasing power consumption is performed on the operation unit 43 (UP operation 101), the display on the display unit 44 changes in accordance with the operation of the operation unit 43 (UP display 102). Further, the control unit 42 inquires of the power control system 14 about current power information (power inquiry 103).

  At this time, the control unit 42 controls the power consumption of each heating unit 41 so as to maintain the current state. When there is a response of available power information from the power control system 14 during a certain period of time after the operation of increasing power consumption (UP operation 101) (available power information 104), induction heating cooking is performed according to the power information. The upper limit of the power consumption of the apparatus is determined, and the power consumption of each heating unit is updated (power consumption UP105). When the heating is stopped along with the update of the power consumption, an error is displayed in the stopped state, and when the heating power is smaller than the heating power set by the operation, the heating power setting display is lowered (display update 106). Hereinafter, the fixed time is referred to as inquiry time.

  Here, the available power information is assumed to be surplus power with respect to the contract current with the power supply company with which the user contracts or excess power with respect to the contract current. Moreover, the upper limit of power consumption is the sum of the maximum power consumption controlled by the heating units 41 a to 41 d of the induction heating cooker 4 before the operation of the operation unit 43 and after the operation of the operation unit 43. Compare the maximum power consumption of the set thermal power and make the smaller one.

  The above operation will be described with an example. FIG. 4 shows the display unit 44 when the right IH heating unit 41 a is heated with the heating power 5. LEDs (44a to 44c, hereinafter referred to as shining ring LEDs) that are turned on during heating are provided around each induction heating unit or part of the periphery. When all the heating units start heating from the initial state (the state in which power is not consumed) with the setting of thermal power 5 which is the initial heating power of the “heating” menu on the right IH, Reference numeral 44 indicates a heating power 5 display in the “heating” menu, and the glowing ring LED 44a is lit. During the inquiry time, the right IH heating unit 41a remains in the initial state (the state where power is not consumed), the response of the available power information received from the power control system 14 during the inquiry time, and the “heating” menu The maximum power consumption of thermal power 5 is compared with 1000W.

  When the available power value is 1000 W or more, the display unit 44 updates the power consumption of the heating unit 41 while maintaining the thermal power 5, and the available power is less than 1000 W and the lower limit of the maximum power consumption range of the thermal power 5 Sometimes (for example, 900 W), the display unit 44 remains at the heating power 5, and the control unit 42 controls the heating unit 41 with the available power value as an upper limit.

  Alternatively, when the available power falls below the lower limit of the range of the maximum power consumption of the thermal power 5 (for example, 400 W), the display unit 44 becomes a thermal power in which the value of the available power is within the range of the maximum power consumption (in the case of 400 W, the thermal power 2) The control unit 42 controls the heating unit with the electric power as an upper limit.

  However, when the available power value is lower than the minimum driving power value in each heating state, the control unit 42 stops heating and returns the display unit 44 to the initial state, and then displays an error number on the display unit 44. .

  At this time, a voice announcement indicating that the in-home power situation is tight is sent from a notification unit (not shown) to notify the user.

  So far, one operation for increasing the power consumption has been described, but it is assumed that the heating power is increased several steps at a time from the start of cooking or from a low heating power as a normal use situation. FIG. 5 is a sequence diagram when operations are continued.

  In the induction heating cooker 4, a time lag of 2 seconds to 3 seconds occurs after the power determination function 42 a determines the power of each of the heating units 41 a to 41 d until the power consumption of the heating unit actually increases or decreases. Therefore, if thermal power is received in the middle of a continuous operation, it can be used without the power control system 14 detecting an increase or decrease in the power consumption of the induction heating cooker 4 determined by the previous operation at the time of power inquiry for the next operation. The power information may be determined and notified to the induction heating cooker 4.

  In order to reduce the phenomenon caused by the time lag, an operation (UP operation 205) in which power consumption is increased is continued within an inquiry time until the power consumption is updated after an operation in which power consumption is increased (UP operation 201). In this case, the inquiry time is updated for each operation, and when the inquiry time elapses, the power consumption is actually increased (power consumption UP 209).

  Next, an inquiry time after an operation that increases power consumption will be described.

  First, the time for making an inquiry to the power control system 14 and receiving available power information is a maximum of 2 seconds depending on the communication load and the like. Therefore, the inquiry time until the post-operation power is updated is 2 seconds or more.

  In addition, in order to cope with the continuous operation described above, it takes time to determine that the continuous operation is not performed any more. For example, when a heating start operation is performed, a voice phrase explaining the operation flows. The voice phrase is about 2 seconds to 10 seconds. It is conceivable to increase the heating power after listening to the explanation of the operation, or to start the heating operation of another stove or grill.

  However, the longer the power inquiry time, the more uncomfortable the feeling of thermal power is felt, so it is considered that a power inquiry time of about 3 seconds is suitable.

  FIG. 6 is a sequence diagram regarding the power inquiry time at the initial startup of the induction heating cooker.

As described above, the induction heating cooker 4 and the power control system 14 communicate wirelessly. When the induction heating cooker 4 is turned on, in addition to the initial activation of the induction heating cooker 4 itself (initial activation / transmission / reception unit boot process 301), the wireless communication module boot process (initial activation / transmission unit 42c) is configured. A transmission / reception unit boot process 301) and an initial search process are performed from the wireless communication module in order to confirm communication between the wireless communication module and the power control system 14 (initial communication 302). Since these processes are performed at the initial startup after the power is turned on, it takes time until normal communication with the power control system 14 is started. When an operation for increasing the power consumption is performed immediately after the induction heating cooker 4 is turned on (UP operation 303), normal communication cannot be performed, and there is a high possibility that no response is returned to the power inquiry. In that case, an error is displayed and heating stops, which is bothersome for the user. In order to reduce this bothersomeness, the inquiry time can be extended for a certain time after the initial activation when the induction heating cooker 4 is turned on. This extended inquiry time is 30 seconds after the power is turned on. When power information that can be used within 30 seconds is notified from the power control system 14 after 3 seconds have passed (usable power information 307), the induction heating cooker 4 does not wait for 30 seconds and calculates the power consumption after reception. Update (power consumption UP308).

  Next, a case where the current amount currently used exceeds the contract current described above will be described. The power control system 14 notifies the power information without inquiring about power from the induction heating cooker 4 to the power control system 14. At that time, the induction heating cooker 4 notified of the amount of power to be suppressed operates to suppress the amount of power notified from the power currently consumed. When the period of the contract current amount over continues, the power control system 14 gives the same notification to the induction heating cooker 4 every 10 seconds. In addition, when the induction heating cooker 4 reduces the power consumption or when other home appliances reduce the power consumption, the current control amount is reduced with respect to the contract current, the power control system 14 causes the induction heating. The cooker 4 is notified of power information.

  Therefore, there is no surplus power that can be used even if a power inquiry is made by an operation that increases the power consumption of the induction heating cooker from when the notification of contract current amount over is received until notification of less than the contract current amount is received. In addition, the power consumption of the heating unit cannot be increased. Therefore, the operation that increases the power consumption is invalidated, and the user is informed by voice that the in-home power situation is tight because the in-house electric device is being used. As a result, it is possible to immediately notify that the use restriction is applied without waiting for the inquiry time.

  However, since the induction heating cooker 4 and the power control system 14 are wireless communication, the communication may be interrupted depending on radio wave conditions. There is a possibility that the power information notified from the power control system 14 when the amount of current currently used with respect to the contract current described above is reduced may be lost.

  If this power information falls out, the operation to increase the power consumption of the induction heating cooker will be invalid until the next notification of this power information, so when the notification of the contract current amount over is first received When a certain period of time (here, 1 minute) elapses, an operation that increases power consumption becomes effective.

  With these operations, the user feels that the state of the heating unit has been updated simultaneously with the operation and display, and the troublesome waiting time for an inquiry response during the operation is reduced. Also, if the current usage amount exceeds the contracted current amount in the home, disabling the operation that increases power consumption makes it possible to grasp the power status in the home without waiting for the inquiry time. It is reduced.

The induction heating cooker of the present invention is used by displaying the display corresponding to the operation while inquiring about the power information, and updating the power consumption actually driven by the heating unit only when the response is returned. Can be used without feeling bothersome, and can be used as a device for a system that suppresses power according to the power situation in the house, in the facility, in the area, or in the power jurisdiction. .

4 induction heating cooker 14 power control system 41 heating unit 42 control unit 42a power determination function 42b power inquiry function 42c transmission / reception means 43 operation unit 44 display unit

Claims (5)

A plurality of heating units for heating an object to be heated;
A control unit for controlling the heating unit;
An operation unit for setting each heating unit;
It has a display part that displays the setting status by the input of the operation part,
The control unit transmits / receives data to / from the power control system;
A power determination function for determining power consumption according to available power information received by the transceiver means;
A function of inquiring available power to the power control system by an operation that increases power consumption of the operation unit;
The display unit switches display according to the operation of the operation unit,
The power determination function maintains the current power consumption as power controlled by the control unit within a first predetermined time after the operation of the operation unit,
When the first predetermined time elapses, the power determination function updates power according to available power information received by the transmission / reception means,
The induction heating cooker, wherein the display unit switches display according to the power update. The induction heating cooker according to claim 1, wherein the first predetermined time is updated each time an operation in which power consumption of the operation unit increases. The second predetermined time after the initial activation of the control unit is the first predetermined time when the transmission / reception means cannot receive the available power within the first predetermined time after the operation of increasing the power consumption of the operation unit. The induction heating cooker according to claim 1 or 2, wherein the predetermined time is extended. If the data received from the power control system includes information that suppresses the current power consumption,
The induction heating cooker according to any one of claims 1 to 3, wherein an operation that increases power consumption among operations of the operation unit is invalidated. The operation of the operation unit that increases power consumption is enabled when a third predetermined time has elapsed after receiving data including information for suppressing power consumption that is currently consumed from the power control system. The induction heating cooker according to any one of claims 1 to 4.

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