JP3797900B2 - Heating cooking system, heating cooker and ventilation fan device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heating cooking system provided with a heating cooker that heats a medium to be heated by an electrically driven heating means, a ventilation fan device that ventilates when the heating cooking device is used, and heating used in the heating cooking system. The present invention relates to a cooker and a ventilation fan device.
[0002]
[Prior art]
FIG. 6 shows the appearance of a conventional heat cooking system 100. As shown in FIG. 6, the heating cooking system 100 includes a heating cooking device 103 that heats a cooking container such as a pan by a heater 102 accommodated in the cooking device main body 101, and a ventilation (not shown) during operation of the heating cooking device 103. A ventilation fan device 105 that performs ventilation by automatically driving and controlling a fan (multiblade fan) is provided.
[0003]
The heating cooker 103 is provided with an infrared LED 106 protruding from the top surface of the top plate 107. The infrared LED 106 wirelessly transmits an infrared signal for starting the drive of the ventilation fan in conjunction with the start of energization of the heater 102 and for stopping the drive of the ventilation fan in conjunction with the stop of the energization of the heater 102. It has become.
[0004]
A ventilation fan device 105 is installed above the cooking device 103, and an infrared sensor 109 for receiving the infrared signal is provided on the bottom of the side wall plate of the device main body 108 so as to protrude. The infrared signal received by the infrared sensor 109 is detected by a drive control circuit (not shown) installed in the ventilation fan device 105, and the drive control of the ventilation fan is performed by this drive control circuit. Yes.
[0005]
Thus, when the user starts using the heating cooker 103, the operation of the ventilation fan is automatically started, and when the user finishes using the heating cooker 103, the operation of the ventilation fan is automatically stopped. There is the convenience that the trouble of manually operating the operation switch 110 provided in the ventilation fan device 105 to drive the ventilation fan can be saved.
[0006]
[Problems to be solved by the invention]
[0007]
  ObedienceIn the conventional cooking system 100, since the infrared LED 106 is installed in a state of being exposed on the top plate 107 surface, the signal output unit becomes dirty due to the boiling of the infrared LED 106, and the infrared signal is normally transmitted. There is a problem that failure is likely to occur when the infrared LED 106 hits the object, and there remains room for improvement in improving the reliability of wireless communication.
[0008]
  The present invention has been made in view of the above-described circumstances, and therefore the object of the present invention is as follows.InfraredAn object of the present invention is to provide a cooking system that improves the reliability of the earless communication, and a cooking device and a ventilation fan device used therefor.
[0009]
[Means for Solving the Problems]
  The cooking system according to claim 1,A top plate for placing the medium to be heated, an electrically driven heating means covering the top plate, and energization for controlling energization to the heating means based on the thermal power set by the thermal power setting means Control means; and transmission means for wirelessly transmitting a predetermined drive signal by infrared rays;And a ventilation fan installed around the heating cooker, receiving means for receiving the driving signal, and a ventilation fan based on the driving signal received by the receiving meansDrive controlA ventilation fan device comprising drive control means;The top plate is made of heat-resistant tempered glass having light transmission characteristics that allow infrared wavelengths to pass through, and the transmission means is housed in the cooker body so as to be covered by the top plate, Wireless transmission of the drive signal by infrared raysFeatures.
[0010]
  ThisAccording to such a configuration, it is possible to prevent the soup from adhering to the transmitting means or hitting an object, so that the transmitting means can be protected from dirt and failure,By infraredThe reliability of wireless communication can be improved.
[0011]
  The cooking system according to claim 2 is characterized in that the transmission means generates a drive signal based on the number of revolutions set in accordance with the set thermal power of the thermal power setting means and wirelessly transmits it.
  According to such a configuration, the rotational speed of the ventilation fan can be automatically controlled according to the set thermal power by the thermal power setting means, that is, the air volume of the ventilation fan can be automatically controlled.
  The heating cooking system according to claim 3 is characterized in that the heating means includes an IH heater that heats the medium to be heated by electromagnetic induction.
  5. The cooking system according to claim 4, wherein the transmission means generates and transmits a drive signal for driving the ventilation fan device until a predetermined time has elapsed from the time when the energization control to the heating means is stopped. It is characterized by.
  According to such a structure, even after a user finishes cooking, a ventilation fan can be continuously operated for a while. In addition, since the operation of the ventilation fan is automatically controlled until it stops after a predetermined period of time, it is possible to save the user from manually operating the ventilation fan, and to improve the convenience for the user.
  Claim5In the described cooking system, a plurality of transmission means are provided in the cooking device.
  According to such a configuration, for example, even when a communication path of a drive signal connecting one transmission unit and a reception unit is blocked by an obstacle such as dirt, a drive signal from another transmission unit is transmitted. Since it can be received by the receiving means, the reliability of wireless communication can be further improved.
[0012]
  Claim6In the described heating cooking system, the heating cooker includes manual operation means for manually operating the rotation speed of the ventilation fan, and the transmission means is generated based on the rotation speed set by the manual operation means. The driving signal is configured to be wirelessly transmitted.
  According to such a configuration, since the cooking device is provided with manual operation means, even a short user or a user using a wheelchair can easily operate the ventilation fan. The operability of the fan can be improved.
[0013]
  Claim7In the cooking system described above, the manual operation means is configured so that the operation becomes effective when a main power switch for receiving commercial power is turned on.
  According to such a configuration, when the main power switch is off, power supply to the cooking device such as manual operation means can be cut off, so that the standby power can be reduced to zero and the power consumption of the cooking device Can be reduced.
[0014]
  Claim8In the cooking system described above, the manual operation means is configured so that the operation becomes effective regardless of whether the main power switch for receiving commercial power is turned on or off.
  According to such a configuration, even when the main power switch is off, the ventilation fan can be driven only by operating the manual operation means, so that the user can drive the ventilation fan immediately even in the case of drought. And the operability of the ventilation fan can be improved.
[0015]
  Claim9In the heating cooking system described above, the transmission unit is set by the heating power setting unit until the energization control is stopped when the manual operation by the manual operation unit is performed during the energization control of the heating unit by the energization control unit. The wireless transmission of the drive signal based on the thermal power is configured to be stopped.
  According to such a structure, when a user operates a manual operation means, automatic control of a ventilation fan can be cancelled | released and only manual operation can be validated. Thus, for example, when cooking is performed in which a large amount of smoke is generated, even if a situation occurs where the air flow set by the automatic control is too weak, the user determines it and manually operates the ventilation fan. Can be modified to match the cooking content. Further, for example, when noise generated from the ventilation fan is anxious, such as when using a telephone or at midnight, the noise can be reduced by reducing the air volume of the ventilation fan by manual operation.
[0016]
  Claim10The described heating cooking system includes a roaster as a heating unit, and the transmission unit is configured to wirelessly transmit a drive signal generated based on the thermal power set by the thermal power setting unit for the roaster. To do.
  Because roasting cooking with roasters produces more smoke than cooking with heaters, when comparing roasters and heaters with the same set of thermal power, it is necessary to set the rotation speed of the ventilation fan higher for the roasters than for the heaters There is. Therefore, according to such a configuration, since the rotation speed of the ventilation fan can be controlled according to the thermal power set by the thermal power setting means for the roaster, the air flow of the ventilation fan is automatically optimized even when cooking the roasting with the roaster. Can be controlled. Also, for example, when the heating power of the roaster and other heating means is set at the same time, it is possible to control the rotation speed of the ventilation fan by giving priority to the setting power of the roaster, thereby always optimizing the air volume of the ventilation fan. It can be automatically controlled to anything.
[0017]
  Claim11In the described heating cooking system, the transmission unit is configured to generate a predetermined drive signal and wirelessly transmit until a predetermined period elapses from the time when the energization control to the heating unit by the energization control unit is stopped. It is characterized by.
  According to such a configuration, even after the user finishes cooking with the heating cooker, the ventilation fan can be continuously operated for a while, so it remains without being discharged during cooking. Smoke etc. can be finally exhausted. In addition, since the operation of the ventilation fan is automatically controlled until it stops after a predetermined period of time, it is possible to save the user from manually operating the ventilation fan and to improve the convenience for the user.
[0018]
  Claim12In the described heating cooking system, the heating cooker includes a plurality of heating means, and the transmission means wirelessly transmits a drive signal generated based on the sum of the heating power set by the heating power setting means for each heating means. It is comprised so that it may do.
  According to such a configuration, when a plurality of heating means are used at the same time, the number of rotations of the ventilation fan can be controlled based on the combined thermal power of these, so when using a plurality of heating means at the same time However, it is possible to automatically control the air volume of the ventilation fan to the optimum value.
[0019]
  Claim13Heating cooker and claim14The ventilation fan device according to claim 1 to claim 1.12It is used for the heating cooking system in any one of.
  These claims13as well as14According to the configuration described in the above, the heating cooking system can be constructed by arbitrarily combining the heating cooker and the ventilation fan device. For example, one of the heating cooker and the ventilation fan device cannot be used due to a failure or the like. If this happens, the cooking system can be restored simply by repairing or replacing the disabled item. Thereby, effective utilization of resources can be achieved.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
[First embodiment]
Hereinafter, a first embodiment when the present invention is applied to a built-in type cooking system will be described with reference to FIGS.
[0021]
First, FIG. 2 shows the appearance of the cooking system 1. As shown in FIG. 2, a so-called three-mouth type cooking device (hereinafter simply referred to as a cooking device) 2 is installed in the kitchen. The cooker 2 includes a heater unit 3 incorporated in a counter top of the kitchen, a roaster 4 disposed on the upper left side of the front door of the kitchen, and an operation panel unit 5 disposed on the upper right side. An electronic circuit (described later) for driving and controlling the heaters 7a to 7c (described later) and the roaster 4 is accommodated in the cooker body. The heaters 7a to 7c and the roaster 4 constitute an electrically driven heating means.
[0022]
In the heater unit 3, three heaters 7a to 7c (hereinafter, each part is referred to as a left heater 7a, a central heater 7b, and a right heater 7c) are accommodated in a heater accommodation chamber (not shown). The top plate 8 made of heat-resistant glass is covered. Further, an exhaust port 9 communicating with the inside of the heater housing chamber is formed at the rearmost portion of the top plate 8.
[0023]
FIG. 3A is a diagram illustrating a configuration of the heater unit. As shown in FIG. 3A, the left heater 7a and the right heater 7c are disposed on the front side of the heater housing chamber, and the central heater 7b is disposed on the central back side. In addition, LED groups 10a and 10c made up of a plurality of LEDs for displaying the respective heating power are arranged in an arc shape at positions on the near side outside the left heater 7a and the right heater 7c. The LED group 10b consisting of a small number of LEDs for displaying the heating power of the central heater 7b is arranged in a straight line at the position. Further, infrared LEDs 11a and 11b for wirelessly transmitting infrared drive signals (described later) are disposed at the rear right end and the front left end of the heater chamber.
[0024]
On the top plate 8, annular mounting frames 12a to 12c are drawn by printing or the like so as to correspond to the positions of the heaters 7a to 7c. The annular frames 12a to 12c are made of a pan or the like to be heated. A cooking container is placed. Further, the thermal power display frames 13a to 13c are drawn corresponding to the positions of the LED groups 10a to 10c, and the emitted light from each LED is lit and displayed through the thermal power display frames 13a to 13c. The strength of the heating power of each of the heaters 7a to 7c is displayed according to the number of lights. Furthermore, signal output frames 14a and 14b are drawn corresponding to the positions of the infrared LEDs 11a and 11b, and the drive signals output from the infrared LEDs 11a and 11b are transmitted through the signal output frames 14a and 14b. It is like that.
[0025]
Here, the configuration of each of the heaters 7a to 7c will be briefly described. First, the left heater 7a and the right heater 7c are energized with a high-frequency current through the heating coil 15 (see FIG. 1 to be described later), and are cooked by electromagnetic induction. It is formed by an IH (Induction Heating) heater that heats and heats up to a predetermined maximum heating power (for example, 3 kW). The central heater 7b is formed of a radiant heater that heats the cooking utensil by passing a direct current through the nichrome wire 16 (see FIG. 1 to be described later), and has a predetermined maximum heating power smaller than the left heater 7a and the right heater 7c. (For example, 1.2 kW) can be output.
[0026]
FIG. 3B is an external view showing an example of the operation panel unit 5. As shown in FIG. 3B, the operation panel unit 5 includes a dial type operation unit 17 arranged on the upper side and a kangaroo type operation unit 18 arranged on the lower side. The dial type operation unit 17 is provided with a main power switch 19 and four dials for adjusting the thermal power. The left heater dial 20a, the roaster dial 21, the central heater dial 20b, and the right heater dial 20c are assigned in order from the left.
[0027]
Among these, the left heater dial 20a, the central heater dial 20b, and the right heater dial 20c, which are the heating power setting means, are configured to turn on / off the heaters 7a to 7c and adjust the heating power. The on / off operation is performed by pushing the dials 20a to 20c. The thermal power adjustment is performed by turning the dials 20a to 20c when turned on. The thermal power increases as the dials 20a to 20c are rotated clockwise, and the number of LED lights in the LED groups 10a to 10c corresponding to the heaters 7a to 7c is increased. Has come to increase.
[0028]
The roaster dial 21 performs only on / off of the roaster 4, and fine heating power adjustment is performed by the kangaroo operation unit 18. The reason why the diameters of the left heater dial 20a and the right heater dial 20c are larger than the other diameters is to provide a difference in operability for each dial. This makes it easier for the user to recognize the difference in functionality that the heaters 7a to 7c and the roaster 4 have different maximum heat powers that can be set, thereby improving the usability of the user.
[0029]
In the closed state, the kangaroo operation unit 18 is housed inside the cooking device body as shown in FIG. When the upper portion of the kangaroo operation unit 18 is pushed in this state, the kangaroo operation unit 18 appears while rotating to the near side with the lower end portion as a fulcrum, and the operation becomes possible. In addition, when closing the kangaroo operation part 18 again, it pushes so that the front-end | tip part may be rotated to the back side.
[0030]
FIG. 4 is an external view showing an example of the kangaroo operation unit 18. As shown in FIG. 4, timer units 22a to 22c for setting the heating time of the left heater 7a, the roaster 4 and the right heater 7c are provided in order from the left on the upper stage side of the kangaroo operation unit 18. The lower side of the kangaroo operation unit 18 is, in order from the left, the manual operation unit 24 as manual operation means for manually operating the ventilation fan device 23 (see FIG. 2 described later), and the cooking method (thermal power) of the roaster 4. A cooking selection unit 25 serving as a thermal power setting means for setting the tempura and a tempura setting unit 26 for setting the right heater 7c to tempura cooking are provided. When the right heater 7c is set to tempura cooking, the heating power range that can be adjusted by the right heater dial 20c is set to a predetermined range (for example, the oil temperature is 140 ° C. to 200 ° C.). ing.
[0031]
The manual operation unit 24 is, in order from the left, a “off” switch 24a for stopping the rotation of a ventilation fan (not shown) made of a multiblade fan, and turning on / off an illumination lamp (described later). An “illumination” switch 24b and “weak”, “medium”, and “strong” switches 24c to 24e for setting the air volume of the ventilation fan are provided.
[0032]
Next, the ventilation fan device 23 will be described with reference to FIG. A box-shaped range hood 28 having an open bottom is installed on a side wall surface (not shown) located above the cooking device 2. The range hood 28 is provided with a ventilation fan driven by a motor 29 (described later, see FIG. 1), and this ventilation fan is rotationally controlled by a drive control circuit 30 (described later, see FIG. 1) as drive control means. (Drive control) is performed. In addition, an illumination lamp (not shown) for illuminating the cooking device 2 is also provided inside the range hood 28, and the illumination control of the illumination lamp is also performed by the drive control circuit 30.
[0033]
An operation switch 31 for manually operating the ventilation fan is provided below the side wall plate on the front side of the range hood 28. The arrangement of the operation switches 31 includes switches equivalent to those of the manual operation unit 24 described above.
An infrared sensor 32 for receiving drive signals transmitted from the infrared LEDs 11a and 11b is embedded in the bottom of the side wall plate on the rear side of the range hood 28 so that the light receiving surface thereof is disposed on the bottom surface of the side wall plate. ing. And the ventilation fan apparatus 23 is comprised by these ventilation fans, the range hood 28, the motor 29, the drive control circuit 30, the operation switch 31, and the infrared sensor 32, and the heating cooking system 1 is comprised by the cooking appliance 2 and the ventilation fan apparatus 23. ing.
[0034]
<Description of Electronic Circuit Configuration of Cooker 2 and Ventilation Fan Device 23>
Subsequently, FIG. 1 shows a circuit configuration of an electronic circuit accommodated in the cooking device 2 and the ventilation fan device 23. First, the circuit configuration of the cooking device 2 will be described with reference to FIG.
[0035]
Buses 34 a and 34 b are connected to the commercial power source 33. One bus 34b is connected to the bus 34c via the main power switch 35. When the main power switch 35 is turned on, the AC voltage of the commercial power supply 33 is applied to each electronic circuit inside the cooking device 2. It has become.
[0036]
The central heater 7b is formed by connecting an electromagnetic relay 36 and a coiled nichrome wire 16 in series, and connecting this series circuit to the buses 34a and 34c. The electromagnetic relay 36 is subjected to switching control (energization control) by an energization control circuit 37 (described later) as energization control means. The heating power of the central heater 7b is controlled by controlling the energizing time of the alternating current flowing through the nichrome wire 16 by the electromagnetic relay 36. The roaster 4 has a sheathed heater formed with a circuit configuration equivalent to that of the central heater 7b, and a description thereof will be omitted.
[0037]
The left heater 7a is formed as follows. Bus lines 34 a and 34 c are connected to the AC input terminal of the rectifier bridge circuit 38, and its DC output terminal is connected to a series circuit comprising a coil 39 and a smoothing capacitor 40. One end of a resonance circuit 42 composed of a parallel circuit of the heating coil 15 and the resonance capacitor 41 is connected to the common connection point of the coil 39 and the smoothing capacitor 40, and the other end is connected to the collector of the IGBT 43. The emitter of the IGBT 43 is connected to a common connection point between the smoothing capacitor 40 and the rectifying bridge circuit 38. A flywheel diode 44 is connected between the collector and emitter of the IGBT 43 such that the anode is on the emitter side.
[0038]
The gate of the IGBT 43 is connected to the energization control circuit 37 via the drive circuit 45, and the IGBT 43 is subjected to switching control (energization control) by the energization control circuit 37. The thermal power of the left heater 7a is controlled by matching the switching frequency of the IGBT 43 with the resonance frequency of the resonance circuit 42, and controlling the on-time for each cycle to control the amount of high-frequency current flowing to the resonance circuit 42. It is like that.
[0039]
The resonance circuit 42 is provided with an overcurrent detection sensor 46 for detecting an overcurrent flowing through the resonance circuit 42, and the detection signal is output to the energization control circuit 37. In the energization control circuit 37, when an overcurrent is detected, a process for instantaneously stopping the energization control is performed. Although not shown, the heaters 7a to 7c and the roaster 4 are provided with the same overcurrent detection sensor, and the same processing is performed when overcurrent is detected.
[0040]
The rectifier bridge circuit 38, the coil 39, the smoothing capacitor 40, the resonance circuit 42, the IGBT 43, the flywheel diode 44, and the drive circuit 45 constitute a left heater (IH heater) 7a. Further, since the right heater 7c has a circuit configuration equivalent to that of the left heater 7a, the description thereof is omitted.
[0041]
The energization control circuit 37 is composed mainly of a microcomputer (not shown), and controls the electrical operation of the entire cooking device 2 by reading a cooking device control program from a ROM (not shown). It has become. The energization control circuit 37 is provided with an air volume setting function 47 (described later) by a cooker control program. A constant voltage circuit 48 that generates a predetermined DC voltage from the AC voltage of the commercial power supply 33 is connected to the buses 34a and 34c. The energization control circuit 37 is connected to the DC voltage output from the constant voltage circuit 48. Is operated as a drive source.
[0042]
In the energization control circuit 37, each dial and each switch (only the operation panel unit 5 is shown in FIG. 1) disposed on the operation panel unit 5, each switch 24a to 24e of the manual operation unit 24, and infrared LED driving A circuit 49 is connected. The infrared LED drive circuit 49 generates a drive signal based on a rotation command (command for driving the ventilation fan at a predetermined rotation speed) output from the energization control circuit 37, and the infrared LED 11a based on the drive signal. And 11b.
[0043]
The air volume setting function 47, the infrared LED drive circuit 49, and the infrared LEDs 11a and 11b constitute a transmission means 50. The heaters 7a to 7c, the roaster 4, the energization control circuit 37, the constant voltage circuit 48, the operation panel unit 5, The manual operation unit 24 and the transmission means 50 constitute an electronic circuit of the cooking device 2.
[0044]
Next, the circuit configuration of the ventilation fan device 23 will be described with reference to FIG. The infrared sensor 32 that receives the drive signal is connected to the receiving circuit 51. The receiving circuit 51 is connected to the drive control circuit 30, and the drive signal detected by the receiving circuit 51 is output to the drive control circuit 30.
[0045]
The drive control circuit 30 is composed mainly of a microcomputer (not shown), and controls the electrical operation of the entire ventilation fan device 23 by reading a device control program from a ROM (not shown). It has become. The infrared sensor 32 and the receiving circuit 51 constitute a receiving means 52, and the receiving means 52 and the drive control circuit 30 constitute an electronic circuit of the ventilation fan device 23.
[0046]
<Description of operation of cooking device 2>
Next, the operation of the cooking system 1 will be described. First, the operation of the cooking device 2 will be described. In the ROM (not shown) of the energization control circuit 37, each heater 7a set in the operation panel unit 5 is shown. The correspondence table of the set thermal power for 7 to 7c and the roaster 4 and the switching control method of the electromagnetic relay 36 and the IGBT 43 corresponding thereto is recorded in advance. When the user of the cooker 2 sets the thermal power by operating the operation panel unit 5, the energization control circuit 37 performs switching control of the electromagnetic relay 36 and the IGBT 43 based on the correspondence table, The set thermal power is output from the heaters 7a to 7c and the roaster 4. The heaters 7a to 7c and the roaster 4 may be provided with a temperature sensor for detecting these temperatures as required, so that the thermal power is set to the set thermal power based on the temperature detected by the temperature sensor. You may make it perform the feedback control to maintain.
[0047]
Now, in the ROM (not shown) of the energization control circuit 37, a correspondence table of the set thermal power for the heaters 7a to 7c and the roaster 4 and the air volume of the ventilation fan corresponding thereto is set in advance. Specifically, the air flow of the ventilation fan is set to increase as the set thermal power increases. In particular, the cooking of the grill using the roaster 4 is expected to generate a larger amount of smoke than the cooking using the heaters 7a to 7c. Therefore, the air volume of the ventilation fan with respect to the set thermal power of the roaster 4 depends on the heater 7a. It is set to a stronger value than those of 7 to 7c. Further, in this correspondence table, when any one of the heating powers of the heaters 7a to 7c and the roaster 4 is set at the same time, the air volume of the ventilation fan is set based on the total heating power. Specifically, the air flow of the ventilation fan is set to increase as the total thermal power increases.
[0048]
Here, when the user of the cooker 2 sets the thermal power by operating the operation panel unit 5, the air volume setting function 47 automatically sets the air volume of the ventilation fan based on the correspondence table. A rotation command including information is generated and output to the infrared LED drive circuit 49. In the infrared LED drive circuit 49, the rotation command is converted into a pulsed drive signal according to a predetermined communication protocol, and drive control of the infrared LEDs 11a and 11b is performed based on this drive signal. From the infrared LEDs 11a and 11b, a drive signal converted into pulsed infrared rays is wirelessly transmitted toward the infrared sensor 32.
[0049]
In the air volume setting function 47, the setting state of the manual operation unit 24 is intermittently monitored. When the user operates the manual operation unit 24 to set the air volume of the ventilation fan, the setting is performed. The state is detected, and a rotation command is generated based on the set air volume.
[0050]
In the air volume setting function 47, when the user sets the air volume of the ventilation fan by operating the manual operation unit 24 during the energization control of each of the heaters 7a to 7c and the roaster 4, the energization control is performed thereafter. The automatic setting of the air volume based on the set heating power by the dials 20a to 20c and the cooking selection unit 25 is stopped until only the rotation command based on the set air volume by the manual operation unit 24 is generated. . That is, in other words, in the transmission unit 50, after the user operates the manual operation unit 24, until the power supply control is temporarily stopped, the drive signal based on the set heating power by the dials 20 a to 20 c and the cooking selection unit 25 is displayed. The wireless transmission is stopped, and only the wireless transmission of the drive signal based on the air volume set by the manual operation unit 24 is performed.
[0051]
Further, in the air volume setting function 47, when the energization control is stopped, the automatic setting of the air volume of the ventilation fan is stopped, and when the output of the rotation command is stopped accordingly, a predetermined period (for example, 3 minutes) is started from this point. Until the time elapses, a rotation command for gradually decreasing the air volume of the ventilation fan is output to the infrared LED drive circuit 49 as the predetermined period elapses. That is, in other words, the transmission means 50 wirelessly transmits a drive signal for gradually decreasing the air volume of the ventilation fan until 3 minutes have elapsed since the time when the energization control was stopped when the user finished cooking. It has become so.
[0052]
<Description of Action of Ventilation Fan Device 23>
Then, the effect | action of the ventilation fan apparatus 23 is demonstrated. In a ROM (not shown) of the drive control circuit, a correspondence table of “weak”, “medium”, “strong” of the air flow rate of the ventilation fan and the rotation speed of the motor 29 corresponding thereto is recorded in advance. The drive control circuit 30 performs drive control of the ventilation fan and the illuminating lamp when the following condition (1) or (2) is satisfied.
[0053]
(1) When manual operation is performed with the operation switch 31
In the drive control circuit 30, the setting state of the operation switch 31 provided in the ventilation fan device 23 is intermittently monitored, and when the user manually operates the operation switch 31, the operation switch 31 is operated. The setting change by is detected, and the drive control of the ventilation fan and the illuminating lamp is performed according to the detected setting state. That is, in the drive control circuit 30, rotation control of the ventilation fan is performed at a rotation speed corresponding to the set air volume.
[0054]
(2) When driving signal is received
Moreover, in the drive control circuit 30, the detection of a drive signal is performed intermittently, and when a drive signal is detected, drive control of a ventilation fan and an illumination lamp is performed according to the drive signal. That is, the drive control circuit 30 controls the rotation of the ventilation fan at the rotation speed based on the drive signal.
In the drive control circuit 30, when the conditions (1) and (2) are satisfied at the same time, (1) is preferentially executed.
[0055]
As described above, in the first embodiment, the energization control for the heaters 7a to 7c and the roaster 4 is performed based on the heating power set by the electrically driven heaters 7a to 7c and the roaster 4 and the dials 20a to 20c and the cooking selection unit 25. Installed on the upper side of the cooking device 2, and a cooking device 2 including an energization control circuit 37 for performing transmission and a transmission means 50 for generating and transmitting a drive signal wirelessly based on the rotation speed set according to the set thermal power. The ventilator is provided with a ventilation fan, a receiving circuit 51 that receives a drive signal, and a drive control circuit 30 that drives while controlling the rotation speed of the ventilation fan based on the drive signal received by the receiving circuit 51. Since the cooking device 1 is configured with the fan device 23, the rotation speed of the ventilation fan is automatically controlled according to the set heat power by the dials 20a to 20c and the cooking selection unit 25. It can be, i.e., it is possible to automatically control the air volume of the ventilation fan.
[0056]
Further, the transmission means 50 (infrared LEDs 11a and 11b) is accommodated in the cooker body 6 so as to be covered with the top plate 8, and the drive signal is wirelessly transmitted to the reception means 52 (infrared sensor 32) via the top plate 8. Since it is made to transmit, it can prevent that infrared juice 11a and 11b adheres to boiled juice or hits, etc., thereby protecting the infrared LEDs 11a and 11b from dirt and failure, and reliability of wireless communication Can be improved.
[0057]
Further, since a plurality (two) of the transmission means 50 (infrared LEDs 11a and 11b) are provided in the cooker 2, for example, the communication path of the control circuit signal connecting the one infrared LED 11a and the infrared sensor 32 is obstructed by an obstacle such as dirt. Even when the situation of being blocked occurs, the drive signal from the other infrared LED 11b can be received by the infrared sensor 32, and the reliability of wireless communication can be further improved. Moreover, since the two infrared LEDs 11a and 11b are provided on the diagonal line of the top plate 8, the directivity of the drive signal to be transmitted wirelessly can be expanded, and the receiving means 52 (infrared sensor 32) is installed on the range hood 28. The degree of freedom of position can be increased. The same effect can be obtained even if the two infrared LEDs 11 a and 11 b are provided on a straight line parallel to one side of the top plate 8.
[0058]
The cooker 2 includes a manual operation unit 24 for manually operating the rotational speed of the ventilation fan, and the transmission means 50 transmits a drive signal based on the air volume set by the manual operation unit 24. Since it did in this way, the user with a short stature, the user using the wheelchair, etc. can operate a ventilation fan easily, and can improve the operativity of a ventilation fan.
[0059]
The manual operation unit 24 enables the operation to be effective when the main power switch 35 for receiving the commercial power supply 33 is turned on. When the main power switch 35 is off, the manual operation unit 24 or the like cooking device 2 Since the power supply to the internal electronic circuit is cut off, the standby power when the main power switch 24 is turned off can be reduced to zero, and the power consumption of the cooking device 2 (heating cooking system 1) can be reduced. it can.
[0060]
In addition, when the manual operation by the manual operation unit 24 is performed during the energization control by the energization control circuit 37, the transmission unit 50 sets the heating power set by the dials 20a to 20c and the cooking selection unit 25 until the energization control is stopped. Since the wireless transmission of the drive signal based on the above is stopped, when the user operates the manual operation unit 24, the automatic control of the ventilation fan can be canceled and only the manual operation can be validated. Thus, for example, when cooking with a large amount of smoke is performed, even if a situation occurs where the air flow set by automatic control is too weak, the user determines it and the air flow of the ventilation fan is manually operated. Can be modified to match the cooking content.
[0061]
Further, for example, when noise generated from the ventilation fan is anxious, such as when using a telephone or at midnight, the noise can be reduced by reducing the air volume of the ventilation fan by manual operation.
[0062]
The cooker 2 includes the roaster 4, and the transmission unit 50 transmits the drive signal generated based on the set thermal power set by the cooking selection unit 25, so that the ventilation fan is set according to the set thermal power of the roaster 4. The rotational speed of the ventilation fan can be automatically controlled even in the cooking of the roaster 4 that generates more smoke than cooking by the heaters 7a to 7c.
[0063]
Further, the transmission means 50 wirelessly transmits a drive signal for gradually decreasing the air volume of the ventilation fan until a predetermined period (3 minutes) elapses from the time when the energization control by the energization control circuit 37 is stopped. Even after the user finishes cooking with the cooker 2, the ventilation fan can be continuously operated for a while. Moreover, since the operation of the ventilation fan is automatically controlled until it stops after 3 minutes, the user can save time and effort for manually operating the ventilation fan, and the convenience of the user can be improved.
[0064]
The cooker 2 includes a plurality of heating means (each heater 7a to 7c and the roaster 4), and the transmission means 50 is generated based on the sum of the set thermal powers of the dials 20a to 20c and the cooking selection unit 25. Since the generated drive signal is transmitted wirelessly, when the heaters 7a to 7c and the roaster 4 are used at the same time, the rotation speed of the ventilation fan can be controlled based on the total thermal power. Even when the heaters 7a to 7c and the roaster 4 are used at the same time, the air volume of the ventilation fan can be automatically controlled to an optimum value.
[0065]
In addition, since the cooking system 1 can be constructed by arbitrarily combining the cooking device 2 and the ventilation fan device 23, for example, when one of the cooking device 2 and the ventilation fan device 23 becomes unusable due to a failure or the like. Therefore, the cooking system 1 can be easily reconstructed simply by failure or replacement of the unusable one. Thereby, effective utilization of resources can be achieved.
[0066]
[Second Embodiment]
Next, a second embodiment when the present invention is applied to a built-in type cooking system will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof will be omitted, and only different parts will be described below.
[0067]
FIG. 5 shows a circuit configuration of an electronic circuit housed in the cooking device 2 and the ventilation fan device 23. As shown in FIG. 5, a constant voltage circuit 48 that is a drive source of the energization control circuit 37 is connected to the buses 34a and 34b. Thereby, the constant voltage circuit 48 is always connected to the commercial power source 33 regardless of the conduction state of the main power switch 35. For this reason, the energization control circuit 37 is supplied with a DC voltage from the constant voltage circuit 48 and always operates in a steady state, and the setting state of the manual operation unit 24 is also intermittently monitored.
[0068]
Here, when the user operates the manual operation unit 24 to set the air volume of the ventilation fan, the air volume setting function 47 rotates based on the set air volume regardless of the conduction state of the main power switch 35. A command is generated, and a drive signal generated based on the rotation command is wirelessly transmitted from the infrared LEDs 11a and 11b. Then, the drive control circuit 30 performs rotation control (drive control) of the ventilation fan at a rotation speed based on the received drive signal.
[0069]
As described above, in the second embodiment, the operation of the manual operation unit 24 becomes effective regardless of whether the main power switch 35 for receiving the commercial power supply 33 is turned on or off. Even when the switch is off, the ventilation fan can be driven simply by operating the manual operation unit 24, so that the user can immediately drive the ventilation fan even in the case of drought. Can be improved.
[0070]
The present invention is not limited to the embodiments described above and shown in the drawings, and the following modifications and expansions are possible.
In the embodiment of the present invention, in the cooking device configured to control the rotation speed of the ventilation fan based on the thermal power set by the thermal power setting means, the top plate is provided so as to cover the transmission means. However, the top plate may be provided in the same manner in a heating cooker configured to control only on / off of the ventilation fan as shown in the conventional example. Moreover, what is necessary is just to provide a top plate as needed.
[0071]
In the embodiment of the present invention, two infrared LEDs (transmission means) are provided. However, the present invention is not limited to this, and three or more infrared LEDs may be provided. Moreover, you may make it provide only one as needed.
In the embodiment of the present invention, the manual operation means is provided in the cooking device. However, the manual operation means may be provided as necessary.
[0072]
In the embodiment of the present invention, when a manual operation by the manual operation means is performed during the energization control, the wireless transmission of the drive signal based on the set thermal power by the thermal power setting means is stopped until the energization control is stopped. However, this function may be provided as necessary.
In the embodiment of the present invention, the roaster is provided in the cooking device, but the roaster may be provided as necessary. In addition, the drive signal generated based on the set thermal power by the thermal power setting means for the roaster is wirelessly transmitted, but this function may be provided as necessary.
[0073]
In the embodiment of the present invention, the drive signal for gradually reducing the air volume of the ventilation fan is wirelessly transmitted until the predetermined period has elapsed from the time when the energization control is stopped, but this function is provided as necessary. That's fine. Further, the drive signal is not limited to a signal that gradually decreases the air volume of the ventilation fan, and may be set in consideration of convenience, for example, to set a constant air volume.
[0074]
In the embodiment of the present invention, a plurality of (four) heating means are provided, and the drive signal is generated so that the air volume of the ventilation fan increases as the total thermal power set simultaneously increases, but this function is necessary. It may be provided accordingly. In addition, this drive signal is not limited to the one in which the air flow of the ventilation fan becomes stronger as the total heat power becomes larger. For example, the air flow of the ventilation fan is set according to the maximum heat power among the heat power set simultaneously. It may be set based on.
[0075]
  BookIn the embodiment of the invention, the cooking system is applied to the built-in type, but is not limited thereto, and can be applied to a stationary type.
[0076]
【The invention's effect】
[0077]
  SendingThe transmission means is covered with the top plate and accommodated in the cooker body, and the drive signal is transmitted through the top plate.By infraredSince wireless transmission is performed, it is possible to protect the transmission means from dirt and failure, and to improve the reliability of wireless communication.
[Brief description of the drawings]
FIG. 1 is an electric circuit configuration diagram of a cooking system according to a first embodiment of the present invention.
Fig. 2 External view of cooking system
FIG. 3 is an external view of a heater unit and an operation panel unit.
FIG. 4 is an external view of a kangaroo operation unit.
FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.
FIG. 6 is a diagram equivalent to FIG.
[Explanation of symbols]
In the drawings, 1 is a cooking system, 2 is a cooking device, 4 is a roaster, 7a to 7c are heaters (heating means), 8 is a hot plate, 11a and 11b are infrared LEDs, and 20a to 20c are dials (heating power setting means) ), 23 is a ventilation fan device, 24 is a manual operation unit (manual operation unit), 25 is a cooking selection unit (thermal power setting unit), 30 is a drive control circuit (drive control unit), 32 is an infrared sensor (reception unit), Reference numeral 35 denotes a main power switch, 37 an energization control circuit (energization control means), 47 an air volume setting function, 49 an infrared LED drive circuit, 50 a transmission means, 51 a reception circuit, and 52 a reception means.

Claims (14)

A top plate for placing the medium to be heated, an electrically driven heating means covering the top plate, and energization for controlling energization to the heating means based on the thermal power set by the thermal power setting means A heating cooker comprising control means and transmission means for wirelessly transmitting a predetermined drive signal by infrared rays ;
A ventilation fan installed around the cooking device, receiving means for receiving the drive signal, and drive control means for controlling the ventilation fan based on the drive signal received by the receiving means Ventilation fan device,
The top plate is made of heat-resistant glass having the property of transmitting the infrared wavelength,
The cooking system characterized in that the transmission means is accommodated in a cooker main body so as to be covered with the top plate, and wirelessly transmits the drive signal by infrared rays through the top plate. 2. The cooking system according to claim 1, wherein the transmission means generates a drive signal based on the number of revolutions set according to the set thermal power of the thermal power setting means and wirelessly transmits the drive signal . The heating cooking system according to claim 1 or 2, wherein the heating means includes an IH heater that heats the medium to be heated by electromagnetic induction . The transmission means generates and transmits a drive signal for driving the ventilation fan device until a predetermined time elapses from the time point when the energization control to the heating means is stopped. The heating cooking system as described in . The cooking system according to any one of claims 1 to 4, wherein a plurality of transmission means are provided in the cooking device. The heating cooker includes manual operation means for manually operating the rotational speed of the ventilation fan,
The cooking device according to any one of claims 1 to 5, wherein the transmission unit is configured to wirelessly transmit a drive signal generated based on the rotation speed set by the manual operation unit. system. The cooking system according to claim 6, wherein the manual operation means is configured such that the operation becomes effective when a main power switch for receiving commercial power is turned on . The cooking system according to claim 6, wherein the manual operation means is configured to be effective regardless of whether a main power switch for receiving commercial power is turned on or off . The transmission means, when a manual operation by the manual operation means is performed during the energization control of the heating means by the energization control means, the drive signal based on the set thermal power by the thermal power setting means until the energization control is stopped. The cooking system according to any one of claims 6 to 8, wherein the cooking system is configured to stop wireless transmission . A roaster is provided as a heating means,
The heating unit according to any one of claims 1 to 9, wherein the transmission unit is configured to wirelessly transmit a drive signal generated based on the thermal power set by the thermal power setting unit for the roaster. Cooking system. The transmission unit is configured to generate a predetermined drive signal and wirelessly transmit until a predetermined period elapses from the time when the energization control to the heating unit by the energization control unit is stopped. The heating cooking system in any one of 1 thru | or 10 . The cooking device comprises a plurality of heating means,
12. The transmission unit according to claim 1, wherein the transmission unit is configured to wirelessly transmit a drive signal generated based on a sum of the thermal power set by the thermal power setting unit for each heating unit. The cooking system according to any one of the above . It is used for the heating cooking system in any one of Claims 1 thru | or 12. A cooking device characterized by that. The ventilation fan apparatus used for the heating cooking system in any one of Claims 1 thru | or 12.

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