JP2011086521A - Induction heating cooker - Google Patents

Abstract

To provide an induction heating cooker that can perform cooking at a high output for a long time even if a part of exhaust gas is re-suctioned from an intake port.
An induction heating block is configured by a heating coil, a control circuit, and a blower. A plurality of induction heating blocks are included in a main body, and at least a part of cooling air discharged from the plurality of heating blocks has a mixing region. Because of the configuration that passes, the cooling air that has risen in temperature that is discharged from one operating induction heating block and the cooling air that is discharged from the blower 32 of the other non-operating induction heating block are mixed. The exhaust temperature can be reduced by mixing at least part of the region, and even when part of the exhaust is re-suctioned from the intake port 39, cooking with high output is performed for a longer time. Can do.
[Selection] Figure 2

Description

  The present invention relates to a cooling structure for heat-generating components in an induction heating cooker.

  In recent years, induction heating cookers have become widespread as a safe and clean heat source that does not use fire and does not emit combustion gas.

  Conventionally, this type of induction heating cooker includes a heating coil for induction heating and various electronic components on a control circuit that supplies a high-frequency current to the heating coil in a controllable manner.

  Induction heating has different heating efficiencies depending on the magnetic permeability and resistivity depending on the material of the cooking pan, heat loss increases under relatively low thermal efficiency, and heat generation of components such as induction heating coils increases accordingly. .

  In addition, among electronic components on the control circuit, there are, for example, an extremely large amount of heat generated during operation, such as an IGBT and a diode bridge, and a capacitor with a relatively small amount of generated heat. A heat sink is attached to an electronic component that generates a large amount of heat to enhance the cooling effect.

  These heating coils and electronic components guarantee normal operation by cooling with cooling air from the blower.

  At this time, if a part of the exhaust gas whose temperature has risen is re-suctioned from the intake port that supplies air to the blower, the intake air temperature rises as the induction heating cooker continues to operate, and the heating coil and electronic components are sufficiently Can not be cooled.

  For this reason, the temperature of the cooling air is detected by a thermistor disposed in the housing, and if the temperature exceeds a predetermined temperature, an alarm is given to the user to prompt the reduction of the output of the cooking, or the cooking is stopped by the control circuit. There is an induction heating cooker (see, for example, Patent Document 1).

  On the other hand, there is an induction heating cooker configured to block a shortened path between the intake port and the exhaust port so as not to re-suck the exhaust gas whose temperature has risen (see, for example, Patent Document 2).

  As shown in FIG. 8, a suction port 7 is formed on the bottom wall 2a of the housing at a predetermined distance from the mounting surface 10 of the housing 2, and an exhaust port 8 is formed on the side wall 2b of the housing. A configuration in which it is difficult to re-suck high-temperature exhaust air from the suction port by providing an elastic shielding plate 11 that blocks the shortened path between the suction port 7 and the exhaust port 8 that reaches the housing placement surface 10 from the housing bottom wall 2a. It is said.

Japanese Patent Laid-Open No. 3-190083 JP-A-3-88292

  However, in the above-described conventional configuration, the temperature of the cooling air that gradually rises due to re-suction of the exhaust gas temperature is detected and the operation of the heating coil is controlled, so that the cooking time at high output is limited.

  Moreover, the latter conventional configuration can be applied only to an induction heating cooker in which the cooker body is installed at a specific installation location. In a built-in type induction heating cooker that is incorporated into a general system kitchen cabinet, a housing is provided from the top in the opening hole opened in the top plate of the cabinet, and an induction heating block is installed on the top plate of the induction heating cooker. The entire housing is suspended.

  For this reason, since the distance from the bottom surface of the housing to the bottom surface inside the cabinet differs depending on the type of cabinet, the shortened path cannot be reliably blocked with a single elastic blocking plate.

  In addition, in an induction heating cooker in which the exhaust port and the intake port are configured on the upper surface, it is possible to configure a blocking wall having the same effect, but it becomes an obstacle when moving the pan during cooking. It had the problem that.

  The present invention solves the above-described conventional problems, and reduces the temperature discharged from the exhaust port, so that a part of the exhaust gas is re-suctioned regardless of the form of the induction heating cooker. An object of the present invention is to provide an induction heating cooker that can perform stable heating cooking for a longer time, if any.

  In order to solve the above-described conventional problems, an induction heating cooker according to the present invention includes a main body having a top plate on which the cooker is placed, a heating coil that is provided at a lower portion of the top plate and heats a cooking container, and heating. A control circuit for controlling the high-frequency current to the coil in a controllable manner and a blower for sending cooling air to cool the heat generating components or the heating coil of the control circuit, and the induction heating block is provided by the heating coil, the control circuit and the blower. A plurality of induction heating blocks are included in the main body, and at least part of the cooling air discharged from the plurality of heating blocks passes through the mixing region.

  As a result, at least a part of the cooling air that has been heated from one induction heating block that has been operated and the cooling air that has been discharged from the blower of the other non-operational induction heating block in the mixing region. As a result, the exhaust temperature can be reduced, and even when a part of the exhaust is re-suctioned from the intake port, cooking at high output can be performed for a longer time.

  The induction heating cooker of the present invention can reduce the exhaust temperature with a simple configuration in an induction heating cooker having a plurality of induction heating blocks, and can perform stable cooking over a long period of time.

The perspective view which shows the external appearance of the induction heating cooking appliance in Embodiment 1 of this invention The principal part horizontal sectional view which shows the structure of the induction heating cooking appliance in Embodiment 1 of this invention. The principal part vertical sectional view which shows the structure of the induction heating cooking appliance in Embodiment 1 of this invention The principal part horizontal sectional view which shows the structure of the induction heating cooking appliance in Embodiment 2 of this invention The principal part horizontal sectional view which shows the structure of the induction heating cooking appliance in Embodiment 3 of this invention The principal part horizontal sectional view which shows the structure of the induction heating cooking appliance in Embodiment 4 of this invention The principal part vertical sectional view which shows the structure of the induction heating cooking appliance in Embodiment 4 of this invention Sectional drawing of the principal part which shows the structure of the conventional induction heating cooking appliance.

A first invention includes a main body including a top plate on which a cooker is placed, a heating coil that is provided at a lower portion of the top plate and heats a cooking container, and a control circuit that supplies a high-frequency current to the heating coil in a controllable manner. A heating device for supplying cooling air to cool the heating components or heating coil of the control circuit, and the induction heating block is constituted by the heating coil, the control circuit and the blowing device, and a plurality of induction heating blocks are included in the main body. At least a part of the cooling air exhausted from the plurality of heating blocks passes through the mixing region, so that at least a part of the cooling air whose temperature has been exhausted from one operating induction heating block and the other The exhaust temperature can be reduced by mixing at least part of the cooling air discharged from the blower of the induction heating block in the non-operating state in the mixing region. Even when a re sucking a part of the exhaust from the intake port, can be more prolonged cooking at high output.

  In the second aspect of the invention, in particular, the mixing region of the first aspect of the invention is provided at substantially equal distances from the plurality of exhaust ports (a), so that any induction heating block is mixed and used in the same manner. Variations in exhaust temperature due to the induction heating block can be reduced.

  In particular, the third aspect of the invention is such that the flow passage cross-sectional areas from the plurality of exhaust ports (a) of the first or second aspect of the invention to the mixing region are substantially equal to each other, thereby making the mixing region from the exhaust port of the induction heating block. Therefore, even if any induction heating block is used, mixing is performed in the same manner, and variation in exhaust temperature due to the induction heating block to be used can be reduced.

  The fourth invention is particularly configured between the exhaust port (a) of the plurality of induction heating blocks and the exhaust port (b) for discharging the mixed region of any one of the first to third inventions to the outside of the housing. The opening cross-sectional area of the entire exhaust port (b) is made narrower than that of the entire exhaust port (a), so that at least a part of the cooling air is mixed in the vicinity where the exhaust ports (a) are close to each other. The temperature can be reduced.

  In the fifth aspect of the invention, in particular, by providing the exhaust port (b) of any one of the first to fourth aspects of the invention in only one place, a duct or a wind direction plate that separately induces a wind flow is provided in the housing. Without any problem, the exhaust from the plurality of induction heating blocks goes to the exhaust port (b), and the front of the exhaust becomes a mixing region, which can be reliably mixed.

  In the sixth aspect of the invention, in particular, the plurality of exhaust ports (a) of any one of the first to fifth aspects of the invention are configured to face the mixing region, thereby reliably preventing unnecessary pressure loss. Can be mixed.

  In particular, the seventh invention reaches the mixing region by providing a wind direction plate for guiding the cooling air discharged from the plurality of exhaust ports (a) of any one of the first to fifth inventions to the mixing region. The pressure loss up to can be reduced.

  In the eighth invention, in particular, by providing a duct that communicates from the plurality of exhaust ports (a) of any one of the first to fifth inventions to the mixing region, a part of the cooling air that is exhausted is contained in the housing. It is possible to surely reach the mixing region without mixing to other regions and to mix.

  In the ninth invention, in particular, the plurality of exhaust ports (b) of any one of the first to third inventions are configured corresponding to the plurality of exhaust ports (a), and each exhaust port (b) Since the exhaust gas passes through the mixing region, and the mixing region is formed outside the housing, the inside of the housing, which is a limited space, can be used effectively. Further, since mixing is performed in a relatively open space such as the outside of the casing, pressure loss that occurs in the cooling air flow path when the mixing region is configured inside the narrow casing can be eliminated.

  In the tenth aspect of the invention, in particular, the plurality of exhaust ports (b) of the ninth aspect of the invention are configured to face the mixing area, so that the mixing area is configured outside the housing which is an open space. However, it can be mixed reliably.

  In the eleventh aspect of the invention, in particular, the operation unit that performs energization to the induction heating cooker body of any one of the first to tenth aspects of the invention, adjustment of the output of each of the plurality of heating coils, etc. Arranged below the plate, the mixing area is configured below the operating section. Accordingly, the operation unit of the induction heating cooker generally includes a substrate and a switch (tact switch or capacitance touch switch) configured on the substrate, and the height direction is relatively thin. By configuring the mixing area under the operation unit, an area with little normal utility value is effectively used, and space can be saved.

  A twelfth aspect of the invention is a built-in induction heating cooker incorporated in a cabinet in any one of the first to eleventh aspects of the invention, and an exhaust port for discharging cooling air to the outside of the casing of the induction heating cooker ( b) and the intake port (b) for sucking into the housing are formed on the bottom surface or the side surface of the housing, whereby the exhaust port (b) and the intake port (b) are configured in the cabinet. Even if the section is re-suctioned from the intake port, the exhaust temperature can be reduced, so that cooking with high output can be performed for a long time. Moreover, since the exhaust port (b) and the intake port (b) are configured in the cabinet, the suction of water vapor or broth during boiled food cooking, oil mist during oil cooking, etc. is suppressed and sucked with dust. It is also possible to suppress electrical troubles caused by adhering to electronic components and heating coils. Furthermore, since the exhaust air is not directly blown to the wall surface near the user or the kitchen, cooking can be performed comfortably, and damage to the wall surface can be prevented.

  The thirteenth aspect of the invention is a system kitchen in which the induction heating cooker of the twelfth aspect of the invention is housed in a cabinet, can reduce electrical troubles, and the user can use it comfortably without worrying about exhaust, We can provide a high-quality, safe, comfortable, and clean system kitchen that does not damage the walls.

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

(Embodiment 1)
FIG. 1 is a perspective view showing the appearance of the induction heating cooker in the first embodiment of the present invention. FIG. 2 is a horizontal cross-sectional view of the main part showing the configuration of the induction heating cooker in the first embodiment of the present invention, and FIG. 3 is the main part showing the configuration of the induction heating cooker in the first embodiment of the present invention. It is a vertical sectional view.

  1, 2, and 3, a top plate 22 on which the cooking container 21 is placed is provided on the upper surface of the main body forming the outer shell, and a heating coil 23 that induction-heats the cooking container 21 is provided below the top plate 22. Is provided.

  A heat-resistant resin-based coil base 24 is provided below the heating coil 23, and a plurality of ferrites 25 having magnetism collection are included therein to suppress downward magnetic flux.

  A mica plate (not shown) is sandwiched between the heating coil 23, the ferrite 25, and the coil base 24 as an insulating member. By using a mica plate for the insulating member, the distance between the heating coil 23 and the ferrite 25 can be shortened while ensuring insulation, and the entire coil units 26 (26a) and (26b) can be made thinner. Even if the heating coil 23 is abnormally heated, insulation can be maintained.

  Further, a heat insulating material 27 made of ceramic fiber or the like is provided between the heating coil 23 and the top plate 22 to reduce the heat effect from the heated cooking vessel 21 to the heating coil 23.

  The coil units 26 (26a) and (26b) are directly mounted on a heat radiating plate 28 made of aluminum or the like. At this time, since the lower surfaces of both the coil base 24 and the ferrite 25 are the same surface, they are in contact with the entire surface of the heat radiating plate 28 and integrated, and the heat generated in the coil mainly passes through the ferrite 25 having a relatively high thermal conductivity. And transmitted to the heat sink 28.

  The heat radiating plate 28 is larger than the projected area of the heating coil 23 and is urged upward by a spring provided at the bottom of the main body so as to press the heating coil 23 through the heat insulating material 27 toward the lower surface of the top plate 22. Is provided.

  However, because of the spacer (not shown) provided on the coil base 24, the distance between the heating coil 23 and the top plate 22 becomes a predetermined dimension.

  Further, coil units 26 a and 26 b are disposed on a common heat dissipation plate 28 corresponding to the two front and rear heating portions on the top plate 22. Therefore, since the surface area of the heat radiating plate 28 is increased, the cooling performance is improved, the number of supporting members that support the coil unit 26 via the heat radiating plate 28 can be reduced, the assemblability can be improved, and the space can be saved.

  In addition, an infrared sensor 29 is provided at the lower part of the top plate 22 corresponding to the lower part of the cooking vessel 21 placed on the previous heating unit, and infrared rays radiated from the bottom surface of the cooking vessel 21 are passed through the top plate 22. And outputs a signal corresponding to the temperature.

  Further, a thermistor 30 is provided at a position opposed to the bottom surface of each of the front and rear cooking containers 21 so as to be biased by the top plate 22, and a signal corresponding to the temperature of the top plate 22 facing the bottom surface of the cooking container 21. Is output.

  In the vicinity of the infrared sensor 29 and the thermistor 30, there is provided a control circuit 31 for controlling the output of the heating coil 23 based on the signals output from the infrared sensor 29 and the thermistor 30 and the output setting set by the user at the operation unit. Yes.

  Also, a blower 32 for sending wind for cooling the heat generating components of the control circuit 31 and a duct 33 for guiding the cooling air from the blower 32 to the heat generating components of the control circuit 31 are configured.

  The infrared sensor 29 and the control circuit 31 are arranged below the ferrite 25, and the influence of the magnetic flux is reduced by the magnetic shielding effect of the ferrite 25. However, in order to eliminate the influence of the magnetic flux leakage, the projected area of the heating coil 23 is reduced. By being arranged below the wider radiator plate 28, the space on the heating coil 23 side is separated from the space on the duct 33, infrared sensor 29 and control circuit 31 side. The effect of magnetic flux is reduced.

  Heat generating components in the control circuit 31 such as the IGBT 35 and the resonance capacitor 36 and the infrared sensor 29 joined to the heat sink 34 disposed in the duct 33 are desired by the cooling air of the blower 32 provided in the main body. Cooled to a temperature of.

After the cooling air is discharged from the duct 33, the radiator plate 28 is also cooled at the same time. A cooling thermistor 37 is disposed in the vicinity of the air outlet of the blower 32, and the temperature of the cooling air is detected by the control circuit 31. When the temperature exceeds a predetermined temperature, the output to the heating coil 23 is suppressed and the heat generation of the electronic component is suppressed. Perform such control.

  Inductive heating block 38 from two coil units 26a, 26b mounted on heat radiating plate 28, control circuit 31 for controlling the outputs of coil units 26a, 26b, and blower 32 for cooling the heat generating components on control circuit 31. Configure.

  The induction heating block 38 includes an intake port (a) 39 on the lower side of the blower 32 and an exhaust port (a) 40 on the front side.

  Two such induction heating blocks 38 are arranged in parallel in the case on the left and right sides, and a total of four heating portions are formed on the top plate 22.

  Two intake ports (b1) 41a and (b2) 41b to the housing are configured on the bottom surface of the housing, which are positions facing the intake ports (a1) 39a and (a2) 39b of the left and right induction heating blocks 38, respectively. An exhaust port (b) 42 to the outside of the housing is formed on the side surface in front of the housing.

  The opening cross-sectional area of the exhaust port (b) 42 to the outside of the housing is narrower than the overall cross-sectional area of the exhaust ports (a1) 40a and (a2) 40b from the induction heating block 38.

  Further, a clearance is provided between the exhaust ports (a1) 40a, (a2) 40b from the induction heating block 38 and the exhaust port (b) 42 to the outside of the housing, and at least a part of the cooling air is mixed. The mixing region 43 is configured.

  The operation unit 44 is configured on the front side of the main body. The switch of the operation unit 44 opposes each of the plurality of operation buttons printed on the top plate 22, configures an electrode so as to be urged by the top plate 22, and the capacitance is reduced by touching the operation button with a finger. In other words, a capacitive touch switch configuration is detected in which the control circuit 31 detects the change.

  Since the operation unit block 45 includes a substrate and a touch switch, the height direction is relatively thin. Therefore, the exhaust discharged from the exhaust ports (a1) 40a and (a2) 40b from the induction heating block 38 is sent to the outside of the housing via the mixing region 43 formed in the space below the operation unit block 45. The exhaust port (b) 42 is configured to discharge.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  In the induction heating cooker shown in the present embodiment, if cooking is performed in the heating unit on the left front side, the control circuit 31 controls the output of the heating coil 23 corresponding to the output set by the cooker using the operation unit 44. . Cooling air whose temperature has risen after cooling the heat-generating components of the control circuit 31 is discharged from the exhaust port (a1) 40a of the induction heating block 38 on the left side.

  On the other hand, the blower of the induction heating block 38 on the right side that is not being used is driven in the same manner, and the cooling air substantially equal to the intake air temperature is discharged from the right side exhaust port (a2) 40b. At this time, the opening cross-sectional area of the exhaust port (b) 42 to the outside of the housing is narrower than the overall cross-sectional area of the exhaust ports (a1) 40a and (a2) 40b from the induction heating block 38. Therefore, at least a part of the cooling air is mixed in the mixing region in the vicinity where the exhaust ports (a1) 40a and (a2) 40b are close to each other, and the exhaust temperature finally discharged from the exhaust port (b) 42 is reduced. The

  Therefore, even when part of the exhaust gas is re-suctioned from the intake port (b1) 41a, cooking with high output can be performed for a longer time.

  In addition, by configuring the mixed area 43 in an area having a low normal utility value under the operation unit block 45, the area can be used effectively, and space can be saved.

  In this embodiment, the configuration is such that intake from the bottom surface of the housing and exhaust from the front surface of the housing are not limited thereto, but the configuration may be such as side intake and bottom exhaust, or from the top surface of the housing. In the case of a built-in induction heating cooker, a gap may be provided between the housing and the cabinet, and air may be sucked and exhausted therefrom.

  In the present embodiment, two coil units 26 are disposed on one heat radiating plate 28. However, a configuration in which three or more coil units 26 are disposed may be used. A configuration may be adopted in which one large-diameter coil unit 26 that can be accommodated is disposed.

  In the present embodiment, the infrared sensor 29 is provided only in the portion corresponding to the left and right front heating units. However, the infrared sensor 29 may be provided in the rear coil, or only one of the left and right sides. .

  In the present embodiment, the cooling thermistor 37 is disposed in the vicinity of the air outlet of the blower 32, but may be in the vicinity of the air inlet (a) 39, and in order to directly detect the temperature of the electronic components that generate heat, A chip thermistor or the like may be disposed in the vicinity of the electronic component or on a circuit in the vicinity of the heat generating electronic component.

  In the present embodiment, the cooling plate 28 is simultaneously cooled by the cooling air discharged from the duct 33. However, the present invention is not limited to this, and a cooling fan for the cooling plate 28 may be provided separately, The coil 23 may be cooled only by natural cooling from the heat dissipation plate 28.

  Further, a slight gap is provided between the intake port (a) 39 of the induction heating block 38 and the intake port (b) 41 to the housing, so that the blower of the induction heating block 38 is not only from the outside of the housing but also inside the housing. Alternatively, the air may be cooled by creating a flow of air in the vicinity of the heat radiating plate 28 by adopting a configuration in which the air is slightly sucked.

  In the present embodiment, the two induction heating blocks 38 are arranged in parallel on the left and right, but the configuration is not limited to this, and the induction heating blocks 38 may be arranged in the front and rear, or three or more in parallel. You may set up.

  At that time, in consideration of the temperature of the heat generating components on each induction heating block 38 and the pressure loss up to the mixing region 43, the position of the mixing region 43 is set so that the exhaust temperature is substantially the same regardless of which heating unit is used. Adjust.

  In the present embodiment, the switch of the operation unit 44 is a capacitive touch switch, but is not limited thereto, and may be a push-type tact switch, a slide switch, a rotary switch, or the like.

(Embodiment 2)
FIG. 4 is a horizontal cross-sectional view of the main part showing the configuration of the induction heating cooker in the second embodiment of the present invention. Since the basic configuration is the same as that of the first embodiment, the description is omitted, and different points will be mainly described. The same components as those in the first embodiment are denoted by the same reference numerals.

  In FIG. 4, one exhaust port (b) 42 to the outside of the housing is formed at the substantially central portion on the front side surface of the housing. The exhaust port (b) 42 is configured at a position substantially equidistant from the exhaust ports (a1) 40a and (a2) 40b from the left and right induction heating blocks 38.

  In addition, a plurality of wind direction plates 46 are provided at the exhaust ports (a1) 40a and (a2) 40b of the left and right induction heating blocks 38 to guide the cooling air flow to the exhaust ports (b) 42 to the outside of the housing. Yes.

  Since only one exhaust port (b) 42 to the outside of the housing is formed in the substantially central portion, the exhaust from both the exhaust ports (a1) 40a and (a2) 40b naturally goes to the exhaust port (b) 42. On the other hand, the temperature is mixed in the mixing region 43 before the exhaust port (b) 42, and the exhaust temperature finally discharged from the exhaust port (b) 42 is reduced.

  Further, since the exhaust ports (a1) 40a and (a2) 40b are provided with a plurality of wind direction plates 46 for guiding the cooling air flow to the exhaust port (b) 42 to the outside of the housing, the pressure loss is Minimized and smoothly led to the mixing zone 43.

  Further, since the exhaust port (b) 42 to the outside of the housing is configured at a substantially equal distance from the exhaust ports (a1) 40a and (a2) 40b from the left and right induction heating blocks 38, the right side When cooking is performed in the heating unit, mixing is performed in the same manner, and variation in exhaust temperature due to the induction heating block 38 to be used is reduced.

(Embodiment 3)
FIG. 5 is a horizontal cross-sectional view of the main part showing the configuration of the induction heating cooker in the third embodiment of the present invention. Since the basic configuration is the same as that of the first embodiment, the description is omitted, and different points will be mainly described. The same components as those in the first embodiment are denoted by the same reference numerals.

  In FIG. 5, an exhaust duct 47 is formed which communicates from the exhaust ports (a1) 40a, (a2) 40b of the left and right induction heating blocks 38 to the exhaust port (b) 42 to the outside of the housing. Exhaust gas that has entered from the exhaust ports (a1) 40a and (a2) 40b is reliably mixed in the mixing region 43 in the middle without escaping to other regions in the housing, and discharged from the exhaust port (b) 42. The temperature is reduced.

  In this exhaust duct 47, the cross-sectional areas of the flow paths from the exhaust ports (a1) and (a2) of the induction heating block 38 to the mixing region 43 are substantially equal, and therefore, from the exhaust port of the induction heating block 38 to the mixing region 43. Therefore, even if the left and right induction heating blocks 38 are used, they are mixed in the same manner, and the variation in exhaust temperature due to the induction heating block 38 to be used is reduced.

(Embodiment 4)
FIG. 6 is a horizontal cross-sectional view of the main part showing the configuration of the induction heating cooker according to the fourth embodiment of the present invention, and FIG. 7 is the main part showing the configuration of the induction heating cooker according to the fourth embodiment of the present invention. FIG. Since the basic configuration is the same as that of the first embodiment, the description is omitted, and different points will be mainly described. The same components as those in the first embodiment are denoted by the same reference numerals.

  6 and 7, the induction heating cooker is a built-in type, and is provided with a casing from the top in an opening hole formed in the top plate of the cabinet, and the entire casing is suspended from the top surface of the induction heating cooker main body. It has become. Exhaust ports (b1) 42a and (b2) 42b to the outside of the housing are located at positions facing the exhaust ports (a1) 40a and (a2) 40b of the left and right induction heating blocks 38 and the lower front surface of the operation block 45 Configure.

A region surrounded by the operation unit block 45, the exhaust port (b1) 42a, (b2) 42b, and the cabinet inner wall 48 becomes a mixing region 43, and the exhaust temperature is reduced by mixing the exhaust here.

  At this time, since mixing is performed in a relatively open space such as the outside of the housing, when the mixing region 43 is configured inside the narrow housing, there is no pressure loss that occurs in the cooling air passage, and the pressure loss in the entire cooling air passage is reduced. Reduced.

  In addition, by effectively using a space with a low normal use value such as under the operation unit block 45, the entire housing can be saved.

  Further, a plurality of wind direction plates 46 for guiding exhaust to the central part of the casing are formed at the exhaust ports (b1) and (b2) to the outside of the casing, and in the vicinity of the lower central part of the operation unit block 45. , More reliably mixed.

  In addition, since the intake port (b) 41 to the housing and the exhaust port (b) 42 to the outside of the housing are configured in the cabinet in this way, the exhaust temperature can be reduced, so that a part of the exhaust Even if it is sucked again from the air inlet (b) 41, it is possible to realize a cabinet-type induction heating cooker that can perform cooking with high output for a long time.

  Moreover, since the inlet (b) 41 to the housing and the exhaust port (b) 42 to the outside of the housing are configured in the cabinet, such as steam and broth during boiled cooking, oil mist during oil cooking, etc. Suction is suppressed, and electrical troubles that are caused by adhering to the electronic component, the heating coil 23, etc. when sucked together with dust are also suppressed.

  Furthermore, since the exhaust gas is not directly blown to the wall surface near the user or the kitchen, cooking can be performed comfortably, and damage to the wall surface can be prevented.

  Furthermore, by making such a cabinet-type induction heating cooker a part of the system kitchen, electrical problems are reduced, users can use it comfortably without worrying about exhaust, and there is no damage to the wall. We can provide a quality, safe, comfortable and clean system kitchen.

  In the present embodiment, a plurality of exhaust ports to the outside of the housing are provided facing the exhaust ports (b1) 42a, (b2) 42b and the exhaust ports (a1) 40a, (a2) 40b of the induction heating block 38. However, the entire side surface below the operation unit block 45 of the housing may be used as one large exhaust port (b) 42. Further, the exhaust port (b) 42 to the outside of the housing and the exhaust port (a) 40 of the induction heating block 38 may be integrated.

  As described above, the induction heating cooker according to the present invention has a plurality of heating units, and while using one heating block, mixes it with the cooling air of the other heating block, thereby exhausting the exhaust from the housing. Since it can be made safe at a low temperature, it can be applied to any apparatus that includes a plurality of cooling components and a blower and selectively cools them.

DESCRIPTION OF SYMBOLS 21 Cooking container 22 Top plate 23 Heating coil 31 Control circuit 32 Blower 33 Duct 38 Induction heating block 39 Inlet (a)
39a Intake port (a1)
39b Inlet (a2)
40 Exhaust port (a)
40a Exhaust port (a1)
40b Exhaust port (a2)
41 Inlet (b)
41a Inlet (b1)
41b Inlet (b2)
42 Exhaust port (b)
42a Exhaust port (b1)
42b Exhaust port (b2)
43 Mixing area 44 Operation section 45 Operation section block 46 Air direction plate 47 Exhaust duct 48 Cabinet inner wall

Claims (13)

A main body having a top plate for placing a cooking device; a heating coil provided at a lower portion of the top plate for heating the cooking vessel; a control circuit for supplying a high-frequency current to the heating coil in a controllable manner; and the control A heating device for sending cooling air that cools the heat generating component of the circuit or the heating coil, and the heating coil, the control circuit, and the blowing device constitute an induction heating block, and a plurality of the induction heating blocks are provided in the main body. An induction cooking device in which at least part of the cooling air included and discharged from the plurality of heating blocks passes through the mixing region. The induction heating cooker according to claim 1, wherein the mixing region is provided at a substantially equal distance from the plurality of exhaust ports (a). The induction heating cooker according to claim 1 or 2, wherein flow path cross-sectional areas from the plurality of exhaust ports (a) to the mixing region are substantially equal to each other. The mixing region is configured between the exhaust ports (a) of the plurality of induction heating blocks and the exhaust ports (b) exhausted to the outside of the housing. The induction heating cooker according to any one of claims 1 to 3, wherein a) is made narrower than that of the whole. The induction heating cooker according to any one of claims 1 to 4, wherein the exhaust port (b) is provided only in one place. The induction heating cooker according to any one of claims 1 to 5, wherein the plurality of exhaust ports (a) are configured to face the mixing region. The induction heating cooker of any one of Claims 1-5 which provides the wind direction board which guide | induces the cooling air discharged | emitted from several said exhaust port (a) to the said mixing area | region. The induction heating cooker according to any one of claims 1 to 5, wherein a duct communicating from the plurality of exhaust ports (a) to the mixing region is provided. The plurality of exhaust ports (b) are configured to correspond to the plurality of exhaust ports (a), and exhaust from each of the exhaust ports (b) passes through the mixing region. The induction heating cooker of Claim 1. The induction heating cooker according to claim 9, wherein the plurality of exhaust ports (b) are configured to face the mixing region. An operation unit for energizing the induction heating cooker main body and adjusting the output of each of the plurality of heating coils is disposed under the top plate on the front side of the housing, and the mixing region is below the operation unit. The induction heating cooking appliance of any one of Claims 1-10 comprised in this. A built-in induction heating cooker incorporated in a cabinet, wherein the exhaust port (b) that discharges cooling air to the outside of the casing of the induction heating cooker and the intake port (b) that sucks the cooling air to the inside of the casing Or the induction heating cooking appliance of any one of Claims 1-11 comprised on a housing | casing side surface. The system kitchen which accommodated the induction heating cooking appliance of Claim 12 in the cabinet.