JP2009034220A - Island type kitchen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely guide steam smoke or steam from a cooking container to a range hood even when cooking while a user puts the cooking container on a desired position on the top plate. <P>SOLUTION: The ventilation system arranged in the position spaced apart from the wall surface of a kitchen room and arranged directly on the face-to-face type kitchen table on which coil units 3 for cooking at least the cooking container 20 are arranged, has the range hood 221 opening downward, a ventilation unit 220 having exhausting opening 222 discharging air flow from the cooking container 20, air flow deflecting hoods 224 controllable so as to be freely extended and retracted from the range hood 221 in each opposing surface side, and infrared receiving elements 240 determining in which opposing surface side user stands, and controls so as to extend the air flow deflecting hood 2234 in the opposite side to the facing side in front of which the determined user stands. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a so-called island-type kitchen that is disposed at a position separated from a wall surface of a kitchen room and can be cooked while facing the user, and particularly suitable for efficiently discharging an airflow from a cooking container. The present invention relates to an island type kitchen ventilation system.

  The kitchen has attracted attention not only as a space for cooking, but also as a communication tool with family and friends. In particular, a so-called island-type kitchen, which has become widespread in recent years, is a kitchen in which a part or the whole of a kitchen set is separated from the kitchen room wall and made independent like an island. This island type kitchen has a stove, a sink, and a cooking table all installed on the island part, and these are divided and installed along the island part and the wall.

  This island type kitchen can also eliminate the boundary between the kitchen and the living room, so that the person who cooks can be cooked while facing the family and friends in an open space, and a new lifestyle can be created. It can also be provided.

  By the way, in this island type kitchen, it was necessary to install an exhaust fan at least directly above the stove in the kitchen table in order to exhaust the steam and water vapor generated during cooking and to perform ventilation. However, since this island type kitchen is separated from the wall of the kitchen room, the steam and water vapor from the cooking container cannot be guided along the wall to the exhaust fan and diffuses to the surroundings. As a result, in this island type kitchen, there has been a problem that the discharge efficiency of the hot and cold etc. in the cooking container deteriorates.

For this reason, in the conventional island type kitchen, for example, as shown in Patent Document 1, a technique has been proposed in which air can be discharged by a push-pull method by blowing up with an air curtain device and suction with a range hood. It is expected that the air curtain is surely formed by the air curtain device, and that the steam and steam are guided to the range hood.
Utility model registration No. 3099302 JP 2006-230516 A

  However, in this conventional island type kitchen, the air curtain device is configured to be mounted inside the kitchen stand. In order to actually mount the air curtain device on the kitchen table, it is necessary to provide at least a blower fan, an air chamber, and an air passage connected to the blower fan in the kitchen table. For this reason, in addition to increasing the burden of the production work of the kitchen stand, the configuration is inevitably large because the air curtain device must be mounted inside, and in determining the shape of the island type kitchen, There was a problem that the minute constraint was loaded.

  Further, the island type kitchen has an advantage that the degree of freedom of the user's cooking position can be increased. As a result, two or more users can stand on both sides of the island kitchen and face each other for cooking. When one user cooks, any one of the island kitchens can be used. You can cook by choosing the side.

  However, in the configuration in which the air curtain device as described in the above cited reference 1 is mounted inside the kitchen table, when two or more users face each other for cooking, this is for the user on the air curtain side when cooking. There is a problem of becoming an obstacle. In addition, when one user cooks, there is no need to select the side on which the air curtain device is mounted, so that the degree of freedom of the user's cooking position is limited accordingly. was there.

  Moreover, in patent document 2, the space according to the position which can mount a cooking container at least in the lower part of the top plate in which a cooking container is mounted is formed, and the coil unit is arrange | positioned freely within this space And the technique of moving a coil unit to the mounting position of the identified cooking container while identifying the mounting position of the cooking container on a top plate is disclosed.

  Thereby, even when the cooking container is placed at an arbitrary position on the top plate, the placement position can be automatically identified, and the coil unit can be moved to the placement position. Furthermore, the cooking container can be induction heated by the high frequency magnetic field generated by the coil unit. In other words, the user only has to place the cooking container on a desired location on the top board, and the system kitchen automatically performs all the adjustment of the positions of the remaining coil units. Even when the variation is slightly modified, the burden of labor can be reduced.

  In such a form, the cooking container is placed at a desired location on the top plate and cooked by heating, so that the steam and water vapor from the above-described cooking container can be any arbitrary on the top plate. It is assumed that this can occur at In such a case, in the configuration in which the air curtain device is completely fixed inside the unit table as in the technique disclosed in Patent Document 1 described above, it is possible to guide the hot hood and steam from all the cooking areas to the range hood. It becomes impossible.

  That is, as shown in Patent Document 2, in a system in which a user can place a cooking container on a desired location on the top plate and perform cooking by heating, the hot water and steam from the cooking container are removed from the range hood. There has been a particular need for a system that can provide more reliable guidance.

  Furthermore, in the case where the disclosure techniques of Patent Documents 1 and 2 described above are combined, the air curtain device must be incorporated into the system kitchen, and this limits the space for the coil unit to be formed under the top plate. There is a problem that the cooking position is restricted.

  Therefore, the present invention has been devised in view of the above-described problems, and the object of the present invention is to efficiently discharge the airflow from the cooking container in the island type kitchen with an inexpensive system, and the user can Even when cooking is carried out by placing a cooking container on a desired location on the top plate, the steam and steam from the cooking container are more reliably guided to the range hood, and the user selects the cooking position. It is related with the island type kitchen which can improve property, and the ventilation system for island type kitchens.

  In order to solve the above-described problems, an island kitchen to which the present invention is applied is disposed at a position separated from the wall surface of the kitchen room, and is provided with a heating cooking means for cooking at least a cooking container. Type ventilator having a kitchen table, a range hood provided directly above the kitchen table and opened downward, and an exhaust port for discharging airflow from the cooking container heated by the heating cooking means And an airflow deflection hood that can be extended and contracted from the range hood to each facing side, an identifying means that identifies which facing side the user stands upright, and the identifying means And a control means for controlling to extend the airflow deflection hood on the opposite side with respect to the facing side on which the user stands upright.

  In order to solve the above-described problems, an island type kitchen ventilation system to which the present invention is applied has a heating cooking means disposed at a position spaced from the wall surface of the kitchen room and at least cooking the cooking container. In the ventilation system provided directly above the provided face-to-face kitchen table, it has a range hood that opens downward, and an exhaust port that discharges airflow from the cooking container heated by the heating cooking means. Identification by a ventilation device, an airflow deflection hood that can be extended and contracted from the range hood to each facing side, an identifying means that identifies which facing side the user is standing upright, and the identifying means Control means for controlling the extended airflow deflection hood on the opposite side to the facing side where the user is upright. To.

  In the present invention, which facing side E, F the user stands upright is identified, and the airflow deflection hood on the opposite side is extended with respect to the facing side where the identified user stands upright. Thereby, it becomes possible to always extend the airflow deflection hood on the side opposite to the side where the user stands upright.

  When the cooking container is heated under such conditions, the smoke and water vapor rising from the cooking container is guided by the air flow deflecting hood extended on the opposite side to the user and guided to the range hood and eventually the exhaust port. Become. That is, the airflow deflecting hood can prevent the smoke and water vapor from diffusing to the living room side, thereby increasing the collection efficiency of the steam and the like. Further, by extending the airflow deflection hood on the opposite side to the facing side where the user stands upright, there is no fear that the upright user hits the airflow deflection hood.

  Hereinafter, as the best mode for carrying out the present invention, a system kitchen applied when cooking food in a restaurant or home will be described in detail with reference to the drawings.

  A system kitchen 1 to which the present invention is applied is a system kitchen having at least a work top or a counter (hereinafter referred to as a top plate). As shown in FIG. 1, a kitchen table 11 and an upper surface of the kitchen table 11 And a sink 14 formed in a sink area A adjacent to the top plate 13. Below, the case where the system kitchen 1 is applied as what is called an island kitchen in which the work table of the kitchen is separated from the wall surface and is provided in an island type will be described.

  The kitchen table 11 may be provided with a door (not shown) or a storage drawer (not shown) that is pivotally mounted on the front side so that it can be opened, for example, and each of these doors and storage drawers mainly stores kitchen utensils, tableware, and the like. Possible shelves and cases may be provided. The kitchen table 11 is configured as a so-called face-to-face kitchen table that allows a user standing upright on the facing side E and a user standing upright on the facing side F to face each other and cook. When the user uses the kitchen table 11 alone, the user can freely select whether to cook while standing upright on the facing side E or cooking upright on the facing side F.

  The sink 14 is formed with a draining recess or the like, and a drain outlet is provided on the bottom surface. In the sink 14, the recess and the drain port are integrally formed with each other by a method such as press molding, cast molding, injection molding, or the like. The material of the sink 14 is not particularly limited, but a metal such as a heat-resistant resin or a stainless steel plate can also be used.

  The top plate 13 is composed of a glass plate having a smooth surface. On the top plate 13, a cooking container represented by a cooking pan or pot for cooking foods and the like, and a cutting board for actually chopping and processing the foods can be placed at any position of the user. It is made into the composition. The top plate 13 is not limited to the case where all the regions are made of the same material, but may be made of a glass plate or the like as described above for a range in which a coil unit to be described later is disposed.

  There may be a plurality of cooking containers placed on the top plate 13 at arbitrary positions. In addition to the cutting board, various cooking containers 20 such as tableware bowls, rice cookers, juicers and the like (not shown) are provided. There is a case where it is placed at an arbitrary position. That is, the top plate 13 is a place where the cooking container 20 may be placed. Therefore, it is necessary to configure the top plate 13 with a material excellent in heat resistance, impact resistance, chemical resistance, and mechanical strength. Usually, it is made of heat-resistant glass or ceramics.

  Incidentally, in the system kitchen 1 to which the present invention is applied, the cooking container 20 placed on the top plate 13 is induction-heated using an IH heater. Actually, this induction heating is executed through the coil unit 3 disposed under the top plate 13. In the system kitchen 1, an operation plate 95 for a user to operate these coil units 3 is arranged on the side of the top plate 13, and the coil is received by the user via the operation plate 95. A central control unit 94 for transmitting control signals to the unit 3 is mounted inside.

  FIG. 2 shows a state in which the top plate 13 in the system kitchen 1 is opened. The coil unit 3 is mounted on a flat base plate 4 that is movably disposed over at least one location. Hereinafter, as shown in FIG. 1, an example in which four rows of base plates 4 a to 4 d are arranged in the longitudinal direction X of the top plate 13 will be described. At this time, the base plates 4a to 4d are controlled based on an instruction from the user. Incidentally, in the following description, the case where the number of the base plates 4 is four will be described as an example, but the number is not limited thereto.

  The base plates 4 a to 4 d are assumed to be movable in the width direction Y of the top plate 13. On the top plate 13, markings according to the locations where these base plates 4a to 4d are arranged may be drawn.

  The base plate 4 is disposed in a space 19 below the top plate 13. The space 19 is configured as an open space formed by surrounding the top plate 13 and the bottom plate with side walls. Incidentally, the space 19 is formed on the top plate 13 so as to correspond to a position where the cooking container 20 can be placed.

  Thus, in the system kitchen 1, the coil units 3 a to 3 d (base plates 4 a to 4 d) can be moved in the width direction Y, so that cooking containers such as pots are placed in almost all areas on the top plate 13. Dielectric heating can be used. That is, in the system kitchen 1 of the present embodiment, an area other than the sink area A can be functioned as a cooking area D having both functions of a conventional stove area and a cooking table unit area. For this reason, the user can perform cooking by heating at an arbitrary position on the top plate 13 and can perform cooking by placing a cutting board or the like at an arbitrary position on the top plate 13. Various cooking appliances can be placed at arbitrary positions on the plate 13.

  The system kitchen 1 is provided directly above the kitchen table 11 and has a range hood 221 that opens downward, and a ventilator that exhausts an airflow from the cooking container 20 to be heated. 220 and airflow deflecting hoods 224a and 224b that can be extended and contracted from the range hood 221 to the respective facing sides.

  The range hood 221 takes in steam or steam that rises from the cooking container 20. The exhaust port 222 discharges the hot smoke and water vapor taken in by the range hood 221 to the outside. A fan (not shown) is attached to the exhaust port 222, and by rotating this fan, it is possible to easily discharge hot smoke and water vapor to the outside. The airflow deflecting hood 224a can be extended toward the facing side E based on a hood adjusting mechanism described later, or can be contracted toward the original range hood 222. The airflow deflecting hood 224b can be extended toward the facing side F based on a hood adjusting mechanism described later, or can be contracted toward the original range hood 222.

  Infrared light receiving elements 240 a and 240 b are further attached to the ventilation device 220. The infrared light receiving element 240a is attached to the facing side E of the ventilator 220 so that a user standing upright on the facing side E can be detected. On the other hand, the infrared light receiving element 240b is attached to the facing side F in the ventilation device 220 so that a user standing upright on the facing side F can be detected. As an alternative to the infrared light receiving element 240, a laser sensor, an ultrasonic sensor, a proximity sensor, a displacement sensor, or the like can be used, and these can be used in combination. Further, the detection accuracy may be improved by shortening the arrangement interval of the infrared light receiving elements 240 and increasing the number of arrangement.

  3 and 4 show a hood adjusting mechanism 250 for extending and contracting the airflow deflecting hood 224. The hood adjusting mechanism 250 includes a guide rail 271, a roller 272 movably disposed in the guide rail 271, a motor 273, a pulley 274, a wire 275, and a pulley 276. The airflow deflecting hood 224 is fixed by being fitted into a locking portion 277, and the locking portion 278 is integrated with a movable unit 278 that can freely move the guide rail 271 by a roller 272.

  That is, when the roller 272 is guided by the guide rail 271 cut out in the range hood 221 and moves in the direction of the arrow in the figure, the movable unit 278 and the locking part 277 that are integrally attached thereto are also shown in the figure. Move in the direction of the arrow. For this reason, when the airflow deflection hood 224 is fitted in advance in the locking portion 277, the airflow deflection hood 224 can be similarly moved in the direction of the arrow, and extended and moved to the facing sides E and F. It becomes possible to make it.

  A wire 275 is attached to the movable unit 278. The wire 275 is connected to the rotating shaft of the motor 273 via a pulley 274. For this reason, by rotating the motor 273, the wire 275 can be wound up via the rotating shaft, or the wire 275 once wound can be rewound. By winding and rewinding the wire, the movable unit 278 can be moved through the roller 272 in the direction of the arrow in the figure and in the direction opposite to the arrow in the figure. As a result, the airflow deflection hood 224 attached to the movable unit 278 It can be moved. Incidentally, as an alternative to the motor 273, a direct acting actuator or the like may be used. In addition, by bringing the pulley 276 in contact with the bottom surface of the airflow deflection hood 224, it is possible to reduce friction when the airflow deflection hood 224 is moved through the rotation of the pulley 276.

  FIG. 5 shows an example of another hood adjustment mechanism 250. In the form of FIG. 5, the same components and members as those in FIGS. In the hood adjusting mechanism 250, one rail of the guide rail 271a is provided. In addition, the mounting position of the motor 273 is in the vicinity of the top surface of the range hood 221, and the configuration of the pulley 274 described above is omitted.

  By rotating the motor 273 in the hood adjusting mechanism 250, the air flow adjusting hood 224 is moved in the direction of the arrow in the figure and extended to reach the descending end. At this time, the airflow adjustment hood 224 is shifted toward the center of the circle due to its gravity. The root end of the airflow adjustment hood 224 is connected by a wire 501, and the wire 501 can be extended to a certain distance. The airflow adjustment hood 224 that has shifted to the center of the circle due to gravity is stopped at a predetermined position by the tension of the wire 501.

  Instead of providing the wire 501, a guide rail 502 may be provided. Since the root end portion of the airflow adjustment hood 224 that has shifted to the center side due to gravity is locked by the guide rail 502, the bottom end is stopped at a predetermined position.

  FIG. 6 shows another form of the airflow adjustment hood 224. The airflow adjustment hood 224 is provided with a rotation shaft 503. The airflow adjustment hood 224 is configured to be rotatable about the rotation shaft 503 as a rotation center. When the airflow adjustment hood 224 is extended to reach the descending end, the airflow adjustment hood 224 rotates around the rotation shaft 503 as a rotation center, and shifts to the center side due to gravity. At this time, the root end portion of the airflow adjustment hood 224 that has shifted to the center of the circle due to gravity is locked by the guide rail 502, so that the airflow adjustment hood 224 stops at a predetermined position.

  FIG. 7 shows an example of another hood adjustment mechanism 250. In this hood adjusting mechanism 250, two rails of guide rails 271a and 271b are provided. The guide rail 271a and the guide rail 271b have different circular center positions. In addition, the mounting position of the motor 273 is in the vicinity of the top surface of the range hood 221, and the configuration of the pulley 274 described above is omitted. The guide rail 271a is loosely fitted with a roller 272a, and the guide rail 271b is loosely fitted with a roller 272b.

  Each of the rollers 272a and 272b is attached to a triangular plate 282, and the locking portion 277 is attached to the triangular plate 282.

  By rotating the motor 273 in the hood adjusting mechanism 250, the air flow adjusting hood 224 is moved in the direction of the arrow in the figure and extended to reach the descending end. At this time, since the circle centers of the guide rails 271a and 271b are set at different positions, the airflow adjustment hood 224 is shifted to the circle center side. At this time, the shape of the triangular plate 282 is constant, and the shape is not particularly of a property of contracting and expanding. However, the fact that the guide rails 271a and 271b have different centers means that the airflow adjustment hood 224 can be shifted to the center side accordingly. Moreover, since gravity also acts on the air flow adjusting hood 224, this tendency is further promoted.

  FIG. 8 shows a mechanism for driving the coil unit 3. The coil units 3 are placed on rail engaging members 257 that engage with rails 256 extending in the vertical direction Y, respectively. The rail engaging member 257 moves on the rail 256 by a movement control unit including a drive motor 260 and a gear box 258.

  FIG. 9 is a block diagram showing driving units of the central control unit 94 and the coil units 3a to 3d, and FIG. 10 is a cross-sectional view showing the structure of the coil units 3a to 3d.

  The central control unit 94 includes a control unit 401 configured by a CPU and the like, and a display unit 363 that displays predetermined information to the user via a liquid crystal panel or the like. A control signal can be transmitted to the gear box 258 and an input signal from the user via the operation plate 95 is received via the control unit 401.

  The operation plate 95 is provided with keys and buttons for the user to actually operate the coil units 3a to 3d. The content input from the user on the operation panel 95 is notified to the control unit 401, and the control unit 401 notifies this to the connected control circuit 347, and the control circuit 347 controls the coil based on the input content. Each component of the units 3a to 3d is controlled. The operation panel 95 is assumed to be a liquid crystal touch panel or the like, but is not limited to this. For example, the operation panel 95 is configured by a remote controller for transmitting input content from a user by wireless communication. Also good.

  The drive units of the coil units 3 a to 3 d are roughly divided into an inverter block 331 and a control block 332. The inverter block 331 is a block for controlling a high-frequency magnetic field that is actually induction-heated, and the control block 332 is a block for controlling the entire coil unit 3.

  The inverter block 331 is disposed between the power cord 330 and the rectifier circuit 333, and a rectifier circuit 333 that receives household AC200V (50/60 Hz) power from the power plug 329 via the power cord 330. A current detection coil 344, a choke coil 334 connected to the rectifier circuit 333 and configured by winding a coil around an iron core, and a capacitor 335 forming a series LC circuit between the choke coil 334, A first switching element 336 and a second switching element 337 arranged so as to connect the output terminals of the rectifier circuit 333 in series, and two switching elements 336 and 337 connected in parallel to each other. Resonance capacitors 338 and 339 and the connection points of these resonance capacitors 338 and 339 A car rent transformer 340 to be contacted by, and a circuit protection thermo 341 to be mounted on either the inside of the inverter block 331. An induction heating coil 342 is further connected to one end side of the current transformer 340 in the inverter block 331 and the connection point of the switching elements 336 and 337, and a pan temperature detection thermistor is provided near the approximate center of the induction heating coil 342. 350 is provided.

  The control block 332 includes a primary current detection circuit 345 connected to the current detection coil 344 in the inverter block 331, a power supply voltage detection circuit 346 for detecting a current supplied to the rectifier circuit 333, and at least a primary current detection circuit 345. The control circuit 347 is connected to the power supply voltage detection circuit 346 and serves as a central processing unit for controlling the entire control block 332, and is connected to the control circuit 347 and the switching elements 336 and 337. Inverter drive circuit 348, temperature detection circuit 349 for transmitting detection information from the connected circuit protection thermo 341 to the control circuit 347, and a coil current detection circuit connected to the current transformer 340 and the control circuit 347, respectively. 351 and temperature detection thermistor 350 And includes at least a pan temperature detection circuit 352 are respectively connected to the control circuit 347. The control block 332 is configured by further connecting a cooling fan 354, an alarm 362, a display unit 363, and an operation unit 357 to the control circuit 347.

  As shown in FIG. 10, each component described above is mounted inside the housing 305. In particular, the inverter block 331 and the control block 332 are mounted on the mounting table 306. The housing 305 has an intake port 358 formed on the bottom surface near the position where the cooling fan 354 is disposed, and an exhaust port 359 formed on one side surface.

  Next, each component of the inverter block 331 will be described in detail. The rectifier circuit 333 is arranged to rectify the power supply current from the connected power plug 329, and converts the supplied power supply current as alternating current into direct current. The LC series circuit constituted by the choke coil 334 and the capacitor 335 constitutes a so-called smoothing circuit. The switching elements 336 and 337 are configured by transistors, for example, and reverse conduction diodes 362 and 363 are connected in parallel to the emitters and collectors of the switching elements 336 and 337, respectively. The drive signal QA from the inverter drive circuit 348 is supplied to the base of the switching element 336, and the drive signal QB from the inverter drive circuit 348 is supplied to the base of the switching element 337. That is, the inverter drive circuit 348 can supply a resonance current to the resonance capacitors 338 and 339 and the induction heating coil 342 by alternately supplying the drive signal QA and the drive signal QB.

  As shown in FIG. 10, the induction heating coil 342 is disposed to face the upper surface 305 a of the housing 305. The number of turns in the induction heating coil 342 governs the electric power when the cooking container 20 is heated, and is optimally adjusted in relation to the skin resistance of the bottom plate and the magnitude of the resonance current in the cooking container 20. Need to be. The induction heating coil 342 is resonated based on the supplied resonance current, and as a result, a high frequency magnetic field can be generated.

  The circuit protection thermo 341 is composed of a thermistor or the like whose resistance value changes according to a change in temperature, and mainly measures the temperature of the space that constitutes the inverter block 331 and the control block 332.

  The temperature detection thermistor 350 is formed of a thermistor as with the circuit protection thermo 341. The pan temperature detection thermistor 350 is for detecting the temperature of the cooking container 20 via the top plate 13 and is disposed near the center of the induction heating coil 342 as described above. Furthermore, the current transformer 340 is a coil or the like for detecting the current value of the resonance current flowing through the induction heating coil.

  Next, each component of the control block 332 will be described in detail. The primary current detection circuit 345 detects the current value of the power supply current supplied via the power plug 329 via the connected current detection coil 344. Then, the primary current detection circuit 345 notifies the control circuit 347 of the detected current value.

  The power supply voltage detection circuit 346 detects a voltage based on the power supply current from the power supply plug 329 and notifies the control circuit 347 of the detected voltage.

  The control circuit 347 is provided in a central control unit 358 configured with, for example, a CPU. When the current value detected by the primary detection circuit 345 described above is notified to the control circuit 347 and the voltage detected by the power supply voltage detection circuit 346 is notified, the control circuit 347 is set with reference to these. The inverter drive circuit 348 is controlled so as to obtain the necessary power. In addition, the control circuit 347 interprets a command from the user via the operation unit 357, controls the inverter drive circuit 348, the cooling fan 354, and the alarm 362 based on the command, and also displays predetermined information via the display unit 363. Is displayed.

  The inverter drive circuit 348 is an oscillation circuit for oscillating a sine wave signal, and generates the drive signal QA or the drive signal QB based on the control by the control circuit 347.

  The temperature detection circuit 349 detects a change in resistance value in the circuit protection thermo 341. The temperature detection circuit 349 detects the temperature inside the housing 305 based on the detected change in the resistance value of the circuit protection thermo 341. The temperature detection circuit 349 notifies the control circuit 347 of the detected temperature inside the housing 305. The control circuit 347 can recognize the temperature inside the housing 305 at any time through the notification from the temperature detection circuit 349. Thereby, for example, when the cooling fan or the like is stopped during operation, or when the cooling performance is deteriorated, such as when the intake port 358 or the exhaust port 359 is clogged, and the temperature inside the housing 305 rapidly increases. In addition, the control circuit 347 can recognize this via the temperature detection circuit 349 and can stop the operation of the coil units 3a to 3d.

  The coil current detection circuit 351 reads the current value of the resonance current detected by the current transformer 340 and notifies the control circuit 347 of this value. The control circuit 347 can recognize the current value of the resonance current at any time via the coil current detection circuit 351. Thereby, the control circuit 347 can suppress, for example, the flow of resonance current more than necessary for the power necessary for induction heating determined according to the material and shape of the cooking container 20, Furthermore, when the cooking container 20 is removed during induction heating, it is possible to stop the operation of the coil units 3a to 3d and notify the user via the alarm 362.

  The pan temperature detection circuit 352 detects a change in the resistance value in the pan temperature detection thermistor 350 and detects the temperature of the cooking container 20 based on the detected change in the resistance value of the pan temperature detection thermistor 350. Then, the pan temperature detection circuit 352 notifies the control circuit 347 of the detected temperature of the cooking container 20. Thereby, the control circuit 347 can recognize the temperature of the cooking container 20 at any time via the notification from the temperature detection circuit 349. For example, when the temperature of the bottom of the cooking container 20 rises above a specified value. It is also possible to stop the operation of the coil units 3a to 3d.

  The cooling fan 354 rotates based on the control by the control circuit 347, and the cooling air is sucked from the intake port 358 according to the rotation of the cooling fan 354. Then, the sucked cooling air passes through the inverter block 331 and the control block 332 to cool them, and is discharged from the discharge port 359 to the outside.

  The alarm 362 is composed of an audio oscillator that generates a predetermined sound based on control by the control circuit 347.

  Next, the operation of the coil units 3a to 3d, that is, a method of induction heating the cooking container 20 by the coil units 3a to 3d configured as described above will be described.

  First, a cooking container 20 such as a pan is placed at an arbitrary position on the top plate 13, and the coil unit is moved to a region directly below the cooking container 20. Next, the cooking container 20 is dielectrically heated by the coil unit disposed in the region immediately below the cooking container 20. Specifically, first, the power supply current is received from the power plug 329 through the power cord 330. The received power supply current is rectified in the rectifier circuit 333. At this time, the inverter drive circuit 348 adjusts the drive signals QA and QB supplied to the switching elements 336 and 337 under the control of the control circuit 347.

FIG. 11A is a diagram showing a resonance current flowing through the induction heating coil 342, FIG. 11B is a diagram showing a drive signal QA supplied to the switching element 336, and FIG. 6 is a diagram illustrating a drive signal QB supplied to a switching element 337. FIG. As shown in FIG. 11 (a) ~ (c) , inverter driver circuit 348, under control of the control circuit 347, ON driving signal QA drive time from time _{t 0} until the time point _{t 1} is T1 output To do. During the driving time T1, resonance occurs in a closed circuit formed by the switching element 336, the diode 362, the induction heating coil 342, and the resonance capacitor 338. The inverter drive circuit 348 turns OFF the drive signal QA when a time _{t 1.}

Then, inverter driver circuit 348, under control of the control circuit 347, the time driving from the time _{t 2} is ON outputs a drive signal QB is T2. During the driving time T2, resonance occurs in a closed circuit formed by the switching element 337, the diode 363, the induction heating coil 342, and the resonance capacitor 339. The driving time T2 is the same as the driving time T1.

  Thus, by changing the closed circuit to resonate the induction heating coil 342, a high frequency magnetic field can be generated in the induction heating coil 342. The generated high-frequency magnetic field passes through the bottom plate of the cooking container 20 through the top plate 13. Since the bottom plate of the cooking container 20 is made of metal, an eddy current is generated by passing the high-frequency magnetic field through the metal bottom plate. Due to this eddy current and the electrical resistance of the cooking container 20, Joule heat is generated, and the cooking container 20 itself generates heat. As a result, the food in the cooking container 20 can be heated and cooked.

  In the system kitchen 1 of the present embodiment, a plurality of coil units are arranged in the horizontal direction X of the cooking counter area D, and these coil units can be moved in the vertical direction Y of the cooking counter area D. By moving the coil unit, the user can place the heating and cooking container 20 at an arbitrary position on the top board 13, and can cook by heating at a convenient place depending on the cooking contents. Moreover, since the area | region which is not heat-cooking can be used as a cooking table, the position of a cooking table space is not limited, Compared with the conventional system kitchen, a cooking table space can be taken widely. Furthermore, in this system kitchen 1, since almost all the areas in the heating cooking area D are dielectric heating areas and cooking area, the width of the cooking area and the heating space are changed flexibly as appropriate. Thus, the limited space on the top plate 13 can be used efficiently.

  Next, a system block configuration for extending and contracting the airflow deflection hood 224 will be described.

  Each infrared light receiving element 240a, 240b is connected to a control unit 248 as shown in FIG. The control unit 248 includes a CPU and the like, and is connected to the hood adjustment mechanisms 250a and 250b. The hood adjusting mechanism 250a is a mechanism for realizing extended contraction driving of the airflow deflecting hood 224a. The hood adjusting mechanism 250b is a mechanism for realizing the extended contraction driving of the airflow deflecting hood 224b.

  The control unit 248 transmits detection information as to whether or not the user is standing upright on the facing side E by the infrared light receiving element 240a. When the control unit 248 reads the detection information and identifies that the user is standing upright on the facing side E, the control unit 248 sets the hood adjustment mechanism 250b to extend the airflow deflection hood 224b on the facing side F on the opposite side. Control.

  The control unit 248 receives detection information as to whether or not the user is standing upright on the facing side F by the infrared light receiving element 240b. When the control unit 248 reads the detection information and identifies that the user stands upright on the facing side F, the control unit 248 causes the hood adjustment mechanism 250a to extend the airflow deflection hood 224a on the facing side E on the opposite side. Control.

  Each hood adjustment mechanism 250a, 250b extends and contracts the airflow deflecting hood 224 by rotating the motor 401 with respect to each airflow deflecting hood 224a, 224b.

  In the system having such a configuration, for example, when the user stands upright on the facing side E as shown in FIG. 13A, the user can be detected by the infrared light receiving element 240a, and this is controlled as detection information. To the unit 248. The control unit 248 receives the detection information from the infrared light receiving element 240a and notifies the hood adjustment mechanism 250b to extend the airflow deflection hood 224b. Under the control of the hood adjustment mechanism 250b, the airflow deflection hood 224b is extended from the range hood 221 so as to cover the opposite side F from above as shown in FIG. 13 (a).

  As shown in FIG. 13B, when the user stands upright on the facing side F, the infrared light receiving element 240b can detect the user, and transmits this to the control unit 248 as detection information. The control unit 248 receives the detection information from the infrared light receiving element 240b and notifies the hood adjustment mechanism 250a to extend the airflow deflection hood 224a. Under the control of the hood adjusting mechanism 250a, the airflow deflecting hood 224a is extended from the range hood 221 so as to cover the opposite side E from above as shown in FIG. 13 (b).

  That is, according to the present invention, the facing side E, F is identified by which user is standing upright, and the airflow deflection hood 224b opposite to the facing side E where the identified user is standing up is identified by the identified user. The airflow deflecting hood 224a on the opposite side to the facing side F where is upright is extended. Thereby, the airflow deflection hood 224 can always be extended on the side opposite to the side where the user stands upright.

  When the cooking container 20 is heated in such a state, the smoke and water vapor rising from the cooking container 20 is guided by the air flow deflecting hood 224 extended on the side opposite to the user and guided to the range hood 221 and eventually the exhaust port 222. It will follow. That is, the airflow deflecting hood 224 can prevent the smoke and water vapor from diffusing to the living room side, and can improve the collection efficiency of the smoke and the like.

  In particular, this island type kitchen has been attracting attention not only as a space for cooking, but also as a communication tool with family and friends, and may be installed near the living room. For this reason, in an island type kitchen, it is necessary to pay sufficient attention especially to this ventilation. However, in the present invention, it is possible to reliably prevent leakage of hot smoke or the like to the living room.

  Further, by extending the airflow deflection hood 224 opposite to the facing sides E and F where the user stands upright, there is no fear that the upright user hits the airflow deflection hood 224.

  In the present invention, even when the user is separated from the facing sides E and F, this is identified through the infrared light receiving element 240, and the air flow deflection hood 224 is contracted in response to the identification of the separation action of the user. It may be accommodated in the range hood 221. Thereby, when not cooking, it becomes possible to raise the airflow deflection | deviation hood 224 to the range hood 221 side, and it becomes possible to give a feeling of opening more.

  The present invention is configured to prevent leakage of fumes and the like by mounting the airflow deflecting hood 224 on the side of the ventilator 220 without mounting the air curtain device inside the kitchen table as in the prior art. For this reason, the burden of the production effort of the kitchen stand 11 can be reduced, the kitchen stand can be made compact, and the degree of freedom in determining the kitchen shape can be increased. It becomes.

  Further, in the present invention where there is no need to mount the air curtain device inside the kitchen table as in the prior art, when two or more users face each other for cooking, this is for the user on the air curtain side. There are no problems such as an obstacle to the performance, and the degree of freedom of the user's cooking position can be improved.

  In particular, in the present invention, even when the cooking container is placed at an arbitrary position on the top plate, the coil unit can be moved to the placement position, and further, the coil unit is generated by the coil unit. It is possible to induction-heat the cooking container by the high-frequency magnetic field, and the degree of freedom of the cooking position is high.

  For this reason, since the cooking container is placed and cooked at a desired location on the top board, the user can stand upright on either of the facing sides E and F and perform a cooking operation. Come. In such a case, the present invention identifies the upright position of the user and extends the airflow deflection hood 224 on the opposite side so as not to hit the upright user. It is possible to cope with this even when it changes each time.

  In the embodiment described above, the case where the coil unit 3 that is movable in the space under the top plate 13 is mounted has been described as an example. However, the present invention is not limited to this, and the coil unit 3 is fixedly disposed. The present invention can also be applied to the kitchen table 11 that has been made. Moreover, it becomes possible to apply this invention also to the kitchen stand 11 which applied the gas stove, without utilizing an IH heater.

  Further, the infrared light receiving element 240 is not limited to the case where it is attached to the ventilation device 220, and may be attached to the kitchen table 240. In such a case, the identification information from the infrared light receiving element 240 is notified from the kitchen table 240 to the control unit 248 by wired communication or wireless communication.

  Furthermore, in the present invention, in addition to the user's approach to the kitchen table 11, the start of cooking by the coil unit 3 is further identified, and when both conditions are met, the airflow deflection hood 224 may be extended. Good. The reason why the user approaches the kitchen table 11 is that not only cooking by heating but also cooking work only by cutting without using the coil unit 3, and in such a case, the airflow deflection hood 224 on the opposite side is extended. This is to eliminate the inconvenience.

It is a perspective view of the system kitchen to which this invention is applied. It is a figure which shows the state which open | released the top plate in a system kitchen. It is a figure which shows the hood adjustment mechanism for extending and contracting the airflow deflection | deviation hood. It is a perspective view of the hood adjustment mechanism for extending and contracting the airflow deflection hood. It is a figure for demonstrating the other form of a hood adjustment mechanism. It is another figure for demonstrating the other form of a hood adjustment mechanism. It is a figure for demonstrating the further another form of a hood adjustment mechanism. It is a figure which shows the mechanism for driving a coil unit. It is a block diagram which shows the drive part of a central control unit or a coil unit. It is sectional drawing which shows the structure of a coil unit. It is a figure which shows the resonant current which flows into an induction heating coil. It is a system block block diagram for extending and contracting an airflow deflection hood. It is a figure for demonstrating the effect of the system kitchen to which this invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 System kitchen 11 Kitchen stand 13 Top plate 14 Sink 20 Cooking container 95 Operation plate 3 Coil unit 4 Base plate 221 Range hood 222 Exhaust port 220 Ventilator 224 Airflow deflection hood 240 Infrared light receiving element 248 Control part 250 Hood adjustment mechanism

Claims (12)

A face-to-face kitchen table provided at a position spaced from the wall surface of the kitchen room and provided with a cooking means for cooking at least the cooking container;
A ventilator having a range hood provided directly above the kitchen table and opened downward, and an exhaust port for discharging the airflow from the cooking container heated by the heating cooking means,
An airflow deflecting hood that can be extended and contracted freely from the range hood to each facing side, and
Identifying means for identifying which facing side the user is standing upright;
An island-type kitchen comprising: control means for controlling the airflow deflecting hood on the opposite side to be extended with respect to the facing side on which the user identified by the identification means extends. The island-type kitchen according to claim 1, wherein the airflow deflection hood is capable of guiding an airflow from a cooking container heated by the heating cooking means to the ventilation device. The island type kitchen according to claim 1 or 2, wherein the identification means includes an infrared light receiving element capable of receiving infrared light from a user approaching the kitchen table. The island kitchen according to claim 3, wherein the infrared light receiving element is attached to the ventilation device. The identification means identifies which user standing upright facing away from the location,
The island-type kitchen according to any one of claims 1 to 4, wherein the control means controls the extended airflow change hood to be accommodated on the range hood side. 6. The island type according to claim 1, wherein the control unit further controls to extend the airflow deflecting hood in response to the start of cooking by the cooking unit. 7. kitchen. In the ventilation system provided immediately above the facing kitchen table, which is disposed at a position spaced from the wall surface of the kitchen room and is provided with heating cooking means for cooking at least the cooking container,
A ventilator having a range hood opened downward, and an exhaust port for discharging the airflow from the cooking container heated by the heating cooking means;
An airflow deflecting hood that can be extended and contracted freely from the range hood to each facing side, and
Identifying means for identifying which facing side the user is standing upright;
The island type kitchen ventilation system comprising: control means for controlling the airflow deflecting hood on the opposite side to extend to the facing side where the user identified by the identification means is upright. 8. The island type kitchen ventilation system according to claim 7, wherein the air flow deflecting hood is capable of guiding an air flow from a cooking container heated by the heating cooking means to the ventilation device. The island type kitchen ventilation system according to claim 7 or 8, wherein the identification means includes an infrared light receiving element capable of receiving infrared light from a user approaching the kitchen table. The island-type kitchen ventilation system according to claim 9, wherein the infrared light receiving element is attached to the ventilation device. The identification means identifies which user standing upright facing away from the location,
The island type kitchen ventilation system according to any one of claims 7 to 10, wherein the control means controls the extended airflow change hood to be accommodated in the range hood. 12. The island type according to claim 7, wherein the control unit further controls to extend the airflow deflecting hood in response to the start of cooking by the cooking unit. Kitchen ventilation system.

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