JP5896658B2 - Cooker - Google Patents

Description

  Embodiments described herein relate generally to a cooking device.

  In an IH cooking heater equipped with a grill cabinet, an induction heating coil and a heating element are combined as a heating means of the grill cabinet, and the heating element is heated by electromagnetically inducing a current in the heating element with the magnetic field of the induction heating coil. Some cook food in the grill by heating the body.

JP-A-8-138864

  As described above, when the induction heating coil is used as the heating means of the grill cabinet, the temperature of the induction heating coil rises due to the high temperature environment of the heating element in the grill cabinet and the heat generated by the induction heating coil itself. Therefore, it is necessary to send cooling air to the induction heating coil in response to this temperature rise.

  For example, a method of separately providing a blower in the vicinity of the induction heating coil of the grill box and cooling the induction heating coil with cooling air from the blower can be considered. In this case, it is feared that the blower is affected by the magnetic force of the induction heating coil, and a separate blower is required for installing the blower, and there is a problem that the cooking space is reduced by that space. .

  The present invention has been made in view of the above, and an object of the present invention is to devise the air path of the original blower and cool the induction heating coil for the grill warehouse without adding a new blower. It is to provide a cooking device to obtain.

In order to achieve the above object, the heating cooker of the embodiment uses cooling air that has cooled the drive control unit from a single blower provided in the vicinity of the rear part upstream of the drive control unit that drives and controls the induction heating coil. A duct that constitutes a passage for feeding to the lower front part of the grill cabinet is provided on the front side of the drive control unit, and cooling air supplied to the lower front portion of the grill cabinet is used to cool the grill heating induction heating coil. After passing through the grill, it is discharged from the exhaust outlet at the rear of the grill.

It is a perspective view which shows the whole structure of the heating cooker concerning one Embodiment. It is a front view which shows the internal structure of the heating cooker shown in FIG. It is an expanded sectional view which shows the internal structure of the grill warehouse of the heating cooker shown in FIG. It is the perspective view seen from the front lower surface of the grill warehouse shown in FIG. It is a figure which shows the internal structure from the upper direction of the heating cooker shown in FIG. It is sectional drawing which shows the side which looked at the internal structure from the grill warehouse side of the heating cooker shown in FIG. It is a figure similar to FIG. 5 which shows the internal structure of the heating cooker which shows another embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an overall configuration of a heating cooker according to an embodiment of the present invention. The cooking device 100 shown in the figure is a so-called IH cooking heater that heats cooking utensils using electromagnetic induction of an induction heating coil. In the drawing, the casing is formed on the kitchen counter 200. A grill box 1 is incorporated in the upper left part of the front side of the heating cooker 100 assembled in such a manner that it is fitted into an opening of a predetermined size. The front surface is visible.

  This grill cabinet 1 is configured such that the inside on which the food is placed can be taken out in a drawer-type manner, and the front door of this drawer portion is indicated by reference numeral 1a, but the lower side of the front door 1a of this drawer portion Is attached with a protruding long handle 1b on the side for pulling out the drawer portion. In addition, the front door 1a of a drawer part is comprised with transparent heat-resistant glass, and the heating state of the cooking food cooked inside can be observed now through the heat-resistant glass of this front door 1a. .

  A top plate 103 made of light-transmissive heat-resistant glass is placed on the upper surface of the heating cooker 100 incorporated in the kitchen counter 200. On the top plate 103, two large circular heating area display marks 105, 107 and a circular heating area display mark 109 smaller than or equivalent to the heating area display marks 105, 107 are drawn.

  Right and left induction heating coils 105C and 107C (see FIG. 2), which are large induction heating coils for cooking utensils, are provided directly below the heating area display marks 105 and 107 inside the cooking device 100, respectively. A small central induction heating coil (not shown) is provided directly below the display mark 109. Needless to say, the central induction heating coil may be, for example, a radiant heater, or may be an induction heating coil having the same size as the right and left induction heating coils 105C and 107C. If a cooking utensil such as a pan is placed on these heating area display marks 105, 107, 109, the cooking utensil is heated by an induction heating coil or heater provided immediately below the cooking utensil so that cooking is performed. It has become.

  FIG. 2 is a front view showing the internal structure of the heating cooker 100 as viewed from the front side after removing the cover on the front side of the heating cooker 100 to show the internal structure of the heating cooker 100 shown in FIG. In FIG. 2, in order to explain the internal structure of the heating cooker 100, the structure of other parts is simplified, and the detailed description thereof is omitted. In the left and right IH inverter chamber 113, a right IH inverter and a left IH inverter that drive the right and left induction heating coils 105C and 107C are provided on a substrate.

  Further, the grill / central IH inverter chamber 115 is provided with a grill IH inverter 117 for driving an induction heating coil 21 of the grill, which will be described later, and a central IH inverter 119 on the substrate. Further, a control board 121 for controlling these IH inverters and the like is provided in the lower stage. The left / right IH inverter chamber 113, the grill / center IH inverter chamber 115, the control board 121, and the electrical components provided in these components constitute a drive control unit 199.

  The fan 111 constituting the blower sucks outside air and cools each of the IH inverters, the drive control unit 199 and the like. An induction heating coil (described later) provided in the grill 1 is also cooled. In FIG. 2, the flow of cooling air from the fan 111 is indicated by an arrow, and the flow of cooling air will be described later.

  In FIG. 2, the grill 1 provided on the left side is enlarged and shown alone in FIG. 3. 2 and 3, a cooked product 300 such as fish is placed on a placing net 13 such as a grilled net, which is a food placing table, in the center of the heating space 11 inside the grill cabinet 1. Yes. This placement net | network 13 is mounted on the upper edge part of the saucer 15 provided in the downward direction. Specifically, a part of the four corners of the peripheral edge of the placement net 13 protrudes downward, and the protrusion protruding downward is placed on the edge 15 a of the peripheral edge of the tray 15.

  In the tray 15, a heating element 17 is placed on a step portion 15 b provided in the middle between the edge 15 a of the peripheral edge and the bottom of the tray 15. As will be described later, the heating element 17 is heated by an induction heating coil 21 which is an induction heating coil for a grill cabinet provided below, and thereby heats the food 300 on the placement net 13. is there. As will be described later, the heating element 17 is placed on the step portion 15b at the peripheral edge of the tray 15 without directly contacting the bottom surface of the tray 15 so that the heating element 17 is separated from the bottom surface of the tray 15. It is provided in the tray 15 in a state. Note that the tray 15 is preferably made of a nonmagnetic material such as ceramic, and is difficult to prevent heating by the magnetic field lines of the induction heating coil of the heating element 17.

  The tray 15 is configured so that it can be pulled out from the front side to the outside while the heating element 17 and the placement net 13 are placed. As shown in FIG. 1, the tray 15 is pulled out by a handle 1 b attached under the transparent heat-resistant glass front door 1 a of the drawer, so that the tray 15 is heated by the heating element 17 and the placement net 13. Can be taken out to the outside from the front side, whereby each of the placement net 13, the tray 15 and the heating element 17 can be individually washed.

  Further, the heating element 17 includes a plate-like main body made of a magnetic material, and a protective material that covers the upper and lower surfaces and side portions of the plate-like main body of the magnetic material so as to prevent rust and the like from occurring. It is made of clad material. The magnetic plate-like main body is made of, for example, iron or stainless steel SUS430, and the protective material is made of, for example, stainless steel SUS304, or a cage.

  The surrounding wall 19 has all of the left and right side walls except the front side of the heating space 11 of the grill cabinet 1, the rear rear wall, the lower bottom, and the upper ceiling so that heat does not escape from the heating space 11. The tray 15 is configured to be enclosed and covered, and the tray 15 is provided at the bottom of the surrounding wall 19. In addition, since a flat heater, which will be described later, a so-called flat heater is embedded in the ceiling portion on the upper side of the surrounding wall 19, the ceiling portion is formed by the flat heater embedded in the surrounding wall 19 and the surrounding wall 19. It is what is covered. The bottom 19a of the surrounding wall 19 is made of a non-magnetic material such as ceramic so that it is difficult to prevent heating by the magnetic field lines of the induction heating coil of the heating element 17.

  In addition, an induction heating coil 21 is disposed immediately below the bottom 19 a of the surrounding wall 19, and the heating element 17 is electromagnetically induced by the induction heating coil 21 through the bottom 19 a of the surrounding wall 19 and the bottom of the tray 15. The cooked product 300 on the placement net 13 is heated by the heated heating element 17 by heating. Note that the outer shape of the heating element 17 provided above the induction heating coil 21 is configured to be larger than the outer shape of the induction heating coil 21, as can be seen from FIGS. 2 and 3. The magnetic flux efficiently passes through the heating element 17, and the heating element 17 is efficiently electromagnetically heated.

  Further, between the induction heating coil 21 and the cooked product 300, the bottom portion 19a of the surrounding wall 19 and the bottom portion of the tray 15 are present under the heating element 17, both of which are made of a non-magnetic material such as ceramic. Therefore, it is difficult to prevent heating by the magnetic lines of the induction heating coil of the heating element 17, and the bottom 19a of the surrounding wall 19 and the bottom of the tray 15 are hardly heated by the induction heating coil 21 due to the influence of electromagnetic induction or not heated at all.

  The induction heating coil 21 is mounted on a coil holding body 23, and an aluminum magnetic shielding plate 25 made of a nonmagnetic material is provided below the coil holding body 23, and the induction heating coil 21 is formed by the aluminum magnetic shielding plate 25. It is protected so that the influence of the electromagnetic induction does not reach the case of the lower case.

  FIG. 4 is a perspective view seen from below the front surface of the grill cabinet 1 so that the ceiling portion and a part of the side wall of the grill cabinet 1 shown in FIGS. 2 and 3 can be seen well. As can be seen from the figure, the ceiling 31 on the upper surface of the grill cabinet 1 is formed flat, but the ceiling 31 is composed of a flat heater 33 which is a flat heater. Therefore, for example, even if oil or smoke splashed from the cooked food 300 placed on the grill 13 adheres to the ceiling 31 and becomes dirty, there is no heater protrusion as in the conventional case, so cleaning is easy. Can be done.

  Further, as shown in FIG. 4, the interior lamp 41 is attached to the right side wall of the heating space 11 of the grill cabinet 1 so as to be embedded, and the interior space 41 illuminates the heating space 11 of the grill cabinet 1. In addition, the cooking state and position of the food on the placement net 13 can be confirmed.

  Further, as shown in FIGS. 2 to 4, the rear wall of the surrounding wall 19 constituting the heating space 11 of the grill warehouse 1 is an opening for exhausting smoke, water vapor, etc. generated in the heating space 11. An exhaust window 91 is formed, and the exhaust window 91 communicates with an exhaust outlet 104 provided at the rear portion of the top plate 103 in FIG.

  And the smoke, water vapor | steam, etc. which generate | occur | produced in the heating space 11 from the cooking thing 300 by cooking the cooking object 300, such as a fish, etc. which were mounted on the mounting net | network 13 of the grill warehouse 1, with the induction heating coil 21, etc. Is discharged from the exhaust outlet 104 to the outside through an exhaust tunnel (not shown) provided at the rear portion of the grill cabinet 1.

  As will be described later, the fan 111 blows air to cool the IH inverters such as the right and left induction heating coils 105C and 107C, and the cooling air from the fan 111 passing through the grill box 1 From 91, it passes through the exhaust tunnel at the rear of the grill cabinet 1 and is discharged from the exhaust outlet 104 to the outside.

  Returning to FIG. 2, a duct 133 is provided on the front side of the drive control unit 199 including the left and right IH inverter chambers 113, the grill / center IH inverter chamber 115 and the control board 121 provided on the front side of the fan 111. After the cooling air sent out from the fan 111 is passed through the drive control unit 199, the duct 133 guides the cooling air to the front part below the left grill 1 as indicated by the arrow 501.

  As shown in FIG. 2, a heat shield 221 is provided around the surrounding wall 19 of the grill cabinet 1 so as to surround the surrounding wall 19, and is not shown between the heat shielding plate 221 and the surrounding wall 19. However, a heat insulating plate or a heat insulating material is provided. The drive control unit 199 is entirely surrounded by a frame body 199a. A partition plate 223 is provided between the left side surface of the frame body 199a of the drive control unit 199 and the heat shield plate 221. This prevents the heat of the grill box 1 from affecting the drive control unit 199 and the like.

  Further, ventilation holes 221a and 223a are formed in the lower portions of the heat shield plate 221 and the partition plate 223, respectively, and are sent out from the fan 111 as described above. After passing through the drive control unit 199, the duct 133 causes the arrow 501 to flow. As shown, the cooling air from the fan 111 guided toward the left grill box 1 passes through the ventilation holes 221a and 223a of the heat shield plate 221 and the partition plate 223, and enters the front part below the grill box 1. It is supposed to be sent.

  FIG. 5 shows the induction heating coil by removing the top plate 103, the right / left induction heating coils 105C and 107C, etc. of the cooking device 100 in order to show the internal structure from above of the cooking device 100 shown in FIG. 21 is a diagram illustrating an internal structure viewed from above for easy understanding of the fan 21, the drive control unit 199, the duct 133, the heat shield plate 221, the partition plate 223, and the like. In FIG. 5, other structures are simplified in order to clearly show the induction heating coil 21, the fan 111, the drive control unit 199, the duct 133 (shown by a thick line), the heat shield plate 221, the partition plate 223, and the like. Therefore, it is omitted.

  In FIG. 5, the duct 133 provided on the front side of the drive control unit 199 has cooling air from the fan 111 that has passed through the drive control unit 199, as indicated by arrows 502, respectively. After slightly extending forward from the front end portion of the right side surface of the frame 199a of the drive control unit 199 so as to guide in the direction toward the ventilation holes 223a and 221a, the lower right corner of the cooking device 100 is shown in FIG. It turns to the left in an arc shape so as to be curved, and the tip that is bent and extends to the left is in contact with the edge of the ventilation hole 223a of the partition plate 223.

  The periphery of the fan 111 is surrounded by another duct 197 on the rear side opposite to the drive control unit 199, and the cooling air from the fan 111 is sent to the drive control unit 199 by this duct 197 to drive After passing through the control unit 199, the duct 133 is guided toward the ventilation holes 221a and 223a.

  As described above, after being guided by the duct 133 toward the ventilation holes 221a and 223a, the cooling from the fan 111 guided to the front part below the grill box 1 through the ventilation holes 221a and 223a. The wind is divided into two cooling airs as indicated by arrows 503 and 504 when passing through the ventilation holes 221a and 223a, and one cooling air is supplied to the induction heating coil 21 of the grill box 1 as indicated by an arrow 503. As shown by the arrow 504, the other cooling air rises from the lower front portion of the grill cabinet 1 to the front side near the front door 1a of the grill cabinet 1. After passing through the inside of the grill cabinet 1 so as to expel the smoke and water vapor of the cooked food in the heating space 11, the exhaust of the rear part of the grill cabinet 1 from the exhaust window 91 formed on the rear wall of the grill cabinet 1. Tunnel etc. Through it and is discharged to the outside from the exhaust outlet 104 shown in FIG.

  As indicated by an arrow 503 in FIG. 5, one cooling air that cools the induction heating coil 21 of the grill cabinet 1 is generated by cooling the induction heating coil 21 while cooling the induction heating coil 21 as indicated by an arrow 505 in FIG. 2. After flowing through the lower side, it passes through the exhaust tunnel at the rear of the grill cabinet 1 and is discharged from the exhaust outlet 104 to the outside.

  As shown in FIG. 5, another shunt duct 135 (shown by a thick line) extending from the left end of the portion close to the front door 1a of the grill cabinet 1 toward the right end is provided in the portion closer to the front side of the grill cabinet 1. As a result, the other cooling air indicated by the arrow 504 which has been diverted after passing through the ventilation holes 221a and 223a is raised from the front part below the grill box 1 to the front side near the front door 1a of the grill box 1. , It is guided to pass through the inside of the grill cabinet 1.

  FIG. 6 is a cross-sectional view showing an internal structure of the side portion of the heating cooker 100 shown in FIG. 2 as viewed from the grill cabinet 1 side. In this figure, the front door 1a of the grill cabinet 1 is connected to the front side of the tray 15 by the connecting member 301, and when the handle 1b of the front door 1a is pulled out to the front side, that is, rightward in FIG. 6, together with the front door 1a. The tray 15 and the mounting net 13 and the heating element 17 mounted on the tray 15 are drawn out from the heating space 11 of the grill cabinet 1 to the front side.

  As described above, the duct 133 passes through the ventilation hole 223a and the ventilation hole 221a of the partition plate 223 and the heat shield plate 221, and is guided to the lower front portion of the grill cabinet 1, and then is indicated by arrows 503 and 504. As shown in FIG. 6, one of the two cooling airs from the fan 111 divided into two is indicated by an arrow 504, as shown by reference numeral 504 in FIG. 6. As shown by an arrow 507 from the exhaust window 91 formed on the rear wall of the grill cabinet 1 after the front side near the front door 1a of the grill cabinet 1 is raised and passes through the heating space 11 of the grill cabinet 1. It passes through an exhaust tunnel at the rear of the grill 1 and is discharged to the outside from an exhaust outlet 104 at the rear of the heating cooker 100 as indicated by an arrow 508.

  In the heating cooker 100 configured as described above, for example, a cooking utensil such as a pot containing cooked food is placed on the heating area display marks 105 and 107 on the top plate 103, and then the main cooking cooker. 100 is turned on, and a high frequency current is supplied to the right and left induction heating coils 105C and 107C corresponding to the heating area display marks 105 and 107 under the control of the drive control unit 199, and the right and left induction heating coils 105C and 107C are supplied. , The cooking utensils on the heating area display marks 105 and 107 can be heated by electromagnetic induction heating with the right and left induction heating coils 105C and 107C to cook the food in the cooking utensils.

  In addition, a cooked product 300 such as fish is placed on the placing net 13 on the saucer 15 in the grill box 1, and a high frequency current is supplied to the induction heating coil 21 below the saucer 15 under the control of the drive control unit 199. When driven, the heating element 17 on the tray 15 is heated by electromagnetic induction from the induction heating coil 21, and the cooked food 300 on the placement net 13 is heated from below by the heating element 17 heated by the induction heating coil 21. At the same time, the flat heater 33 on the ceiling 31 is heated from above and cooked.

  The cooling air from the fan 111 that operates under the control of the drive control unit 199 during such heat treatment passes through the drive control unit 199 while cooling, as shown in FIG. As described above, the air passes through the ventilation holes 223a and the ventilation holes 221a of the partition plate 223 and the heat shield plate 221, and is guided to the lower front portion of the grill box 1.

  Then, the cooling air from the fan 111 that has passed through the ventilation hole 223a and the ventilation hole 221a and led to the lower front portion of the grill cabinet 1 is divided into two as shown by arrows 503 and 504 in FIGS. One cooling air, which is diverted to the cooling air and indicated by an arrow 503, flows under the induction heating coil 21 to cool the induction heating coil 21 of the grill box 1.

  Further, the other cooling air indicated by the arrow 504 rises from the lower front portion of the grill cabinet 1 to the front side near the front door 1a of the grill cabinet 1, and smoke and water vapor generated by cooking from the cooked food in the heating space 11 After passing through the inside of the grill cabinet 1 so as to drive out the gas, etc., it is discharged from the exhaust window 104 through the exhaust tunnel at the rear of the grill cabinet 1 through the exhaust window 91 formed on the rear wall of the grill cabinet 1 to the outside. The

  Thus, in this embodiment, not only the drive control unit 199 is cooled by the cooling air from one fan 111, but also the induction heating coil 21 of the grill cabinet 1 can be cooled, and a new fan can be installed. Cooling can be performed economically and in a space-saving manner without adding.

  FIG. 7 is a view similar to FIG. 5 showing the internal configuration of the heating cooker 101 showing another embodiment. In addition, the heating cooker 101 shown in FIG. 7 deletes the duct 133 in the heating cooker 100 shown in FIG. 5, and instead expands the frame body 199a of the drive control unit 199 to extend forward. A corner member 401 that is curved in an arc shape is provided at the lower right corner of the enlarged frame 199a to facilitate the flow of cooling air in this portion, and the ventilation holes of the heat shield plate 221 and the partition plate 223, respectively. A similar ventilation hole 199 b communicating with the lower front portion of the grill cabinet 1 is formed in the portion of the frame 199 a corresponding to 221 a and 223 a, and the cooling air of the fan 111 is passed through the ventilation hole 199 b in front of the lower portion of the grill cabinet 1. The other structures are the same as those in FIG. 5, and the same components are denoted by the same reference numerals.

  In FIG. 7, the cooling air sent from the fan 111 passes through the drive control unit 199 while cooling the drive control unit 199 as indicated by an arrow 502, and then advances forward in the drive control unit 199, so that the frame of the drive control unit 199. When hitting the front part of 199a and the corner member 401, it passes through the ventilation holes 199b of the drive control part 199, the partition plate 223, and the ventilation holes 223a and 221a of the heat shield plate 221, and is guided to the front part below the grill box 1. .

  As described above, the cooling air from the fan 111 guided to the lower front portion of the grill cabinet 1 is divided into two cooling airs as indicated by arrows 503 and 504, and indicated by an arrow 503. One cooling air flows below the induction heating coil 21 and cools the induction heating coil 21 of the grill cabinet 1, and the other cooling air indicated by an arrow 504 starts from the front part below the grill cabinet 1. From the exhaust window 91 formed on the rear wall of the grill cabinet 1 while raising the front side close to the front door 1a of 1 and passing through the grill cabinet 1 so as to drive out smoke and the like of the cooked food in the heating space 11 It is discharged to the outside through an exhaust outlet 104 through an exhaust tunnel at the rear of the grill cabinet 1. Thus, also in this embodiment, not only the drive control unit 199 is cooled by the cooling air from one fan 111, but also the induction heating coil 21 of the grill cabinet 1 can be cooled, and a new fan The cooling can be carried out economically and in a space-saving manner.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1 Grill compartment 1a Front door 1b Handle 11 Heating space 13 Placement net 15 Receptacle 15a Receptacle edge 15b Receptacle step 17 Heating element 19 Enclosure 19a Bottom 21 Induction heating coil 23 Coil holder 25 Aluminum magnetic shield 31 Ceiling 33 Flat heater 41 Interior Light 91 Exhaust Window 100 Heating Cooker 103 Top Plate 104 Exhaust Outlet 105 Right Induction Heating Coil 107 Left Induction Heating Coil 111 Fan 113 Left and Right IH Inverter Chamber 115 Grill / Central IH Inverter Chamber 115
121 Control board 133 Duct 135 Dividing duct 197 Duct 199 Drive control unit 199a Frame 199b Ventilation hole 200 Kitchen counter 221 Heat shield plate 221a Ventilation hole 223 Partition plate 223a Ventilation hole 300 Cooked food 301 Connection member 401 Corner member

Claims (4)

An induction heating coil for cooking utensils for heating cooking utensils placed on the top plate;
A drive control unit for driving and controlling the induction heating coil for cooking utensils;
A single blower that blows cooling air that is upstream of the drive controller and cools the drive controller;
Heating cooking comprising: a grill box for heating the food in the heating space by electromagnetic induction heating of the heating element with an induction heating coil for the grill box disposed in proximity to the heating space provided on the lower side of the top plate A vessel,
A heating cooker characterized in that a duct is provided on the downstream side of the drive control unit, and the cooling air from the blower is guided to the induction heating coil for the grill cabinet by this duct.   When a partition plate is provided between the drive control unit and the grill cabinet to cut off heat from the grill cabinet, a ventilation hole for passing cooling air guided by the duct to the grill cabinet through the partition plate The cooking device according to claim 1, wherein:   When the cooling air is introduced by the duct, the cooling air has a shunt duct that divides the cooling air into cooling air for cooling the induction heating coil for the grill cabinet and an introduction air in the grill cabinet introduced into the heating space of the grill cabinet. The cooking device according to claim 1 or 2, characterized in that.   The duct is characterized in that a part of a downstream side of the casing of the drive control unit is formed as a duct, and the cooling air that has passed through the drive control unit is guided to the induction heating coil for the grill. The cooking device according to any one of 1 to 3.

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