JP2010182481A - Electric component box of induction-heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric component box structure housing in distribution a control part of each induction heating coil and capable of effectively carrying out cooling of each control part as well as of each induction heating coil and its periphery members with a single fan, and aimed at improvement of serviceability such as repair/inspection of relevant control parts, for an induction-heating cooker equipped with a plurality of induction heating coils. <P>SOLUTION: The induction-heating cooker is provided with a top plate on a top face of its body part and an electric component box housing a plurality of induction heating coils as well as control parts concerning electricity conduction control of each induction heating coil inside the body part. The electric component box is provided with housing parts laminated in free detachment so as to house each control part for controlling electricity conduction to each induction heating coil, an air channel for discharging air flowing inside each housing to each induction heating coil from below, the single fan for discharging air flowing through each housing part, and an air discharging port for the fan arranged against an air intake port for each housing part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to an induction heating cooker in which an electric box is equipped with a control unit related to energization control for an induction heating coil disposed below a top plate, and in particular, induction heating that provides a good cooling effect by improving the electric box. It relates to a cooker.

A top plate 2 made of heat-resistant glass is provided on the upper surface of the main body case 1 incorporated in the system kitchen by a drop-in method, and induction heating coils 3 and 3 are arranged on the inner upper and lower sides below the top plate 2, and these induction heating coils. 3 and 3, a radiator heater 4 is arranged, a roasting roaster case 6 for fish grilling is housed and arranged in the lower left side of the main body case 1, a cooling fan 10 is arranged in the rear of the inner right side of the main body case 1, and this A substrate case 11 is arranged in front of the cooling fan 10, and some of the substrate cases 11 contain a control board constituted by a microcomputer, an inverter circuit, and the like. (See Patent Document 1).

JP 2003-208969A

The thing of this patent document 1 is comprised so that the cold wind from the cooling fan 10 may be supplied to the bottom face of the roaster case 6 from the ventilation hole of the heat-shielding board arrange | positioned in the side face of the roaster case 6 through the board | substrate case 11. . In this case, the cooling fan 10 is located at the rear right side inside the main body case 1.
Since the mounting is separate from the substrate case 11, the cooling fan 1 is provided inside the main body case 1.
The trouble of separately performing the zero attachment work and the attachment work of the substrate case 11 and the trouble of joining the air passage from the cooling fan 10 to the substrate case 11 are also complicated.

Further, in this patent document 1, an inverter unit and a control board are housed in a board case 13, but a control board and an inverter circuit for the induction heating coils 2 and 2, and a control for the radial heater 4. There is no disclosure of technology about the storage form of the board, inverter circuit, etc., and the disclosure of the technology about the storage form, etc. for improving the cooling effect of the control board, inverter circuit, etc. There is no.

In view of such points, the present invention relates to an improvement of an electrical box in which a control unit that controls energization of an induction heating coil or the like of an induction heating cooker is accommodated, and cooling of the control unit, induction heating coil, and its surroundings It is an object of the present invention to provide an electrical box configuration in which the cooling of members can be effectively performed by a single fan.

For this reason, the present invention is configured such that the cooling fan 10 and the substrate case 11 are separately mounted by integrating the cooling fan with the electrical box in which the control unit related to the energization control to the induction heating coil is accommodated. In addition to solving the problem of Patent Document 1 and simplifying the mounting operation of the electrical box and the cooling fan in the main body of the induction heating cooker, the cooling effect of the control unit can be improved. The present invention provides a new electrical box that can improve the service of repair and inspection of these control units.

The present invention also includes a top plate on the upper surface of the main body, and a plurality of induction heating coils in the main body of the induction heating cooker, and an electrical device that houses a control unit for controlling energization of these induction heating coils. In the induction heating cooker equipped with a box, it is possible to improve the cooling effect of the control unit related to the energization control to each induction heating coil, and to improve the service made such as repair and inspection of these control units The present invention provides a new electrical box that can be used.

In addition, the present invention provides a cooling fan in an electrical box in which a control unit related to energization control to an induction heating coil having a large calorific value and a control unit related to energization control to an induction heating coil having a small calorific value are accommodated. By adopting an integrated configuration, the problem of Patent Document 1 in which the cooling fan 10 and the substrate case 11 are separately attached is solved, and the electrical box and the cooling fan are attached to the main body of the induction heating cooker. A new electrical box capable of simplifying the work is provided.

For this reason, the electrical box of the present invention has a configuration in which the control units corresponding to the induction heating coils are accommodated in different accommodating portions, and the accommodating portions are stacked, and each of the accommodating portions is accommodated by a single fan. This single fan is integrated into the electrical box so that air is diverted to the parts, and each housing part serves as a duct for air blowing, so that the cooling effect of these control parts can be reduced. In addition to being able to improve, it is easy to determine in which storage unit the control unit corresponding to each induction heating coil is stored, and it is possible to improve service-related improvements such as repair and inspection of the corresponding control unit It shall be possible.

Furthermore, the present invention relates to an induction heating cooker including two induction heating coils having a large calorific value and one induction heating coil having a small calorific value, and a control unit related to energization control to the induction heating coil having a small calorific value. Each control unit related to energization control to the two induction heating coils having a large calorific value,
A three-layer stacking type electrical box that is housed in a separate housing part, and a single fan is integrated into the electrical box so that air from this fan is diverted and sent to each housing part of the three-layer stack. Thus, each housing part can serve as a duct for blowing air, so that the cooling effect can be improved, and the control unit corresponding to each induction heating coil can be identified in which housing part. It is easy to improve service-related improvements such as repair and inspection of the corresponding control unit.

Furthermore, the present invention provides a technique for an induction heating cooker that can be easily changed to include a radiant heater instead of the induction heating coil with a small calorific value, and in that case, the same effect can be achieved. It is.

The electrical box of the induction heating cooker according to the first aspect of the present invention includes a top plate on the upper surface of the main body, a plurality of induction heating coils inside the main body, and a control unit related to energization control of each induction heating coil. In the induction heating cooker including the electrical box to be housed, the electrical box is detachably stacked so as to accommodate each control unit for controlling energization to each induction heating coil, and Air passages for discharging the air flowing through the storage portions from below to the induction heating coils, and a single fan for discharging the air flowing through the storage portions, respectively. On the other hand, the air discharge port of the fan is arranged.

The electrical box of the induction heating cooker according to the second aspect of the present invention includes a top plate on the upper surface of the main body, and houses an induction heating coil and a control unit related to energization control of each induction heating coil inside the main body. In the induction heating cooker including an electrical box, the induction heating coil is disposed inside the main body on the front side and the rear side, and includes each control unit that controls energization to the induction heating coil. The box includes a storage portion A that stores each control unit that controls energization of the induction heating coil on the front side, and a front side that discharges air that has flowed through the storage portion to the induction heating coil on the front side. An air duct portion disposed immediately below the induction heating coil, and a housing portion B housing a control unit that is detachably stacked on the housing portion A and controls energization of the induction heating coil on the rear side, Each A single fan that discharges the air flowing through the container, and the electrical box includes a storage portion A that stores a control unit that controls the energization of the induction heating coil with the air discharged from the fan. A first induction heating coil side air passage that cools the induction heating coil on the front side and its periphery by discharging from the air duct part, and the air discharged from the fan energizes the induction heating coil on the rear side A second induction heating coil side air passage that flows through the accommodating part B that accommodates the control unit for control and discharges from the lower side of the induction heating coil on the rear side to cool the rear induction heating coil and its peripheral part; The air discharge port of the fan is arranged with respect to the air inlet of the first induction heating coil side air passage and the second induction heating coil side air passage.

The electrical box of the induction heating cooker according to the third aspect of the present invention includes a top plate on the upper surface of the main body, the first and second induction heating coils on the left and right arranged inside the main body, and the induction heating arranged on the left and right. A third induction heating coil on the rear side disposed at the center inner side of the coil, and an electrical box that houses a control unit for controlling energization of the first and second induction heating coils and the third induction heating coil. In the induction heating cooker, the electrical box has a first housing part that houses a first control unit that controls the energization of the first induction heating coil, and air that has flowed through the first housing part. And the second induction heating coil which is detachably stacked on the first duct and the air duct portion disposed in the left-right direction directly below each induction heating coil so as to be discharged from the lower side to the second induction heating coil. Related to energization control of coil A second accommodating portion that accommodates two control portions, a third accommodating portion that is detachably stacked on the second accommodating portion, and that accommodates a third control portion related to energization control of the third induction heating coil, A single fan in which an air discharge port is disposed with respect to the air inlet of the first storage part and the second storage part, and the electrical box is configured such that the air discharged from the fan flows separately A first air passage that flows through the first housing portion and is discharged from the blower duct portion to cool the first and second induction heating coils and the periphery thereof; and the second housing portion to the third housing portion. And a second air passage that discharges from the lower side of the third induction heating coil and cools the third induction heating coil and its peripheral portion.

The electrical box of the induction heating cooker according to the fourth aspect of the present invention is provided with a top plate on the upper surface of the main body, and a front side induction heating coil having a large calorific value arranged in the left and right inside the main body, and the left and right induction heating coils. In an induction heating cooker comprising an induction heating coil on the rear side with a small calorific value disposed in the center of the electric heating box, and an electric box that houses a control unit related to energization control to each induction heating coil, the electric box A first housing part for housing a first control unit for controlling energization of one of the left and right induction heating coils, and air flowing through the first housing part to the induction heating coil having a large calorific value. A blower duct portion disposed in the left-right direction directly below each induction heating coil having a large calorific value so as to be discharged from the side, and the other induction heating coil in the left-right arrangement stacked detachably on the first housing portion Related to energization control (2) a second housing portion for housing the control portion, and a third housing portion for housing a third control portion that is detachably stacked on the second housing portion and controls the energization of the induction heating coil with a small calorific value. And a communication duct formed on a side surface portion for sending the air flowing through the first housing portion to the blower duct portion, and a single air that diverts to the first housing portion and the second housing portion and discharges air. A fan, and the electrical box is arranged in the left and right direction by flowing through the first housing portion and discharging from the air duct portion through the communication duct so that the air discharged from the fan flows separately. A first air passage for cooling an induction heating coil having a large calorific value and its peripheral portion;
A second air passage is formed which flows from the second housing portion to the third housing portion and discharges from below the induction heating coil having a small heat generation amount to cool the induction heating coil having a small heat generation amount and its peripheral portion. It is characterized by that.

An electrical box of an induction heating cooker according to a fifth aspect of the present invention is the second to fourth aspects of the present invention, comprising a radiant heater instead of the rear induction heating coil, for controlling energization of the rear induction heating coil. Instead of the control unit, a control unit related to energization control of the radiation heater is provided.

According to the present invention, when the induction heating cooker includes a plurality of induction heating coils, the control units of these induction heating coils are accommodated in the electrical box, and cooling of these control units, the induction heating coils, and their peripheral members are accommodated. Thus, it is possible to provide an electrical box configuration in which the cooling can be effectively performed by a single fan.

Further, according to the present invention, when the induction heating cooker has induction heating coils with different calorific values, the control units of these induction heating coils are accommodated in the electrical box, and the cooling of these control units and the induction heating coils are accommodated. It is possible to provide an electrical box configuration in which the coil and its peripheral members can be cooled effectively by a single fan.

The electrical box of the present invention is configured such that the control unit corresponding to the induction heating coil having a large calorific value and the control unit corresponding to the induction heating coil having a small calorific value are accommodated in different accommodating units, and these accommodating units. The single fan is integrated into the electrical box so that air is diverted to each housing portion by a single fan and air is sent to each housing portion. By fulfilling the role of the duct, it is possible to improve the cooling effect of these control units, and it is easy to determine which storage unit contains the control unit corresponding to each induction heating coil, and the corresponding control It is possible to improve the quality of services such as repair and inspection of the department.

Further, in the present invention, the control unit related to the energization control to each induction heating coil is a detachable three-layer stacked electrical box housed in a separate housing part, and the air flowing through the first housing part is side surface. The communication part formed in the part flows to the air duct part, and the communication part where air flows from the second accommodation part to the third accommodation part is formed at the front end part of the second accommodation part and the front end part of the third accommodation part. Thus, an air passage for cooling each control unit and the induction heating coil is formed by the electrical box by air sent from a single fan. For this reason, since the formation of the air passage (air duct) for cooling each part can also be achieved by mounting the electrical equipment box, the formation of the air passage in the induction heating cooker is simplified. In addition, it is easy to determine in which storage unit the control unit corresponding to each induction heating coil is stored, and by removing the stacked storage unit, improvement of service such as repair / inspection of the corresponding control unit is aimed at Will be able to.

It is the front perspective view which showed the inside by the partial fracture of the induction heating cooking appliance concerning the present invention. It is a longitudinal cross-sectional view of the heating status indicator HP and the induction heating coil portion of the induction heating cooker according to the present invention. It is a perspective view which shows the relationship between the arc-shaped light guide based on this invention, and a light source. It is a block diagram which shows the electric control part of the induction heating cooking appliance which concerns on this invention. It is a disassembled perspective view of the electrical equipment box of the induction heating cooking appliance which concerns on this invention. It is a front perspective view of the assembled state of the electrical box according to the present invention. It is a perspective view of the fan concerning the present invention. It is a vertical side view explaining the internal structure of the electrical equipment box which concerns on this invention.

In the present invention, in an induction heating cooker in which the heating source arranged with respect to the top plate is only a plurality of induction heating coils, each control unit related to energization control to each induction heating coil is dispersedly accommodated in the electrical box. By providing a cooling fan and an air duct duct for cooling the induction heating coil and peripheral members by blowing from the lower side of the induction heating coil integrally with the electrical box, by a single fan In addition to the cooling of the control unit, a novel electrical box configuration is provided that effectively blows air to the induction heating coil and peripheral members to cool them.

In addition, by adopting a configuration in which the respective accommodating portions are detachably stacked, each accommodating portion serves as an air duct, so that the cooling effect can be improved and each control portion can be It is easy to determine whether it is accommodated in the accommodating part, and it is possible to improve the service made such as repair / inspection of the corresponding control part.

Hereinafter, as an example of the present invention, an embodiment of a typical induction heating cooker including two induction heating coils having a large calorific value and one induction heating coil having a small calorific value will be described in detail with reference to the accompanying drawings. Explained.
FIG. 1 is a perspective view showing an external configuration of an induction heating cooker 1 according to the first embodiment of the present invention. An induction heating cooker 1 shown in the figure is a cooker that is installed in a drop-in manner in a system kitchen or the like, and has a main body 2 housed in a substantially rectangular case, and an upper surface of the main body 2. A heat-resistant glass top plate 3 is provided, and a pair of left and right heat generations that serve as a heat source installed on the front side (front side) at a distance below the top plate 3 is increased inside the main body 2. The first induction heating coil 4 and the second induction heating coil 5, and the third induction heating coil with a small calorific value arranged at a distance from the induction heating coils 4 and 5 at the center back side (rear side) thereof. 6 is provided. On the top plate 3 corresponding to the induction heating coils 4, 5, and 6, circular cooking container placement portions 8, 8, and 9 are printed to clearly indicate a place where the cooking container such as a pan is placed. Is displayed. In this embodiment, the induction heating coils 4 and 5 have a heating value of 3 Kw, and the induction heating coil 6 has a heating value of 2 Kw, but this is not limitative.

On the other hand, on the lower part of the top plate 3, on one side as viewed from the front of the main body part 2 (the left side in the figure is shown), a grill for grilling food such as fish with an electric heater (not shown) disposed therein. 7 is disposed, and the front opening of the grill 7 is opened and closed by a grill door 7A supported so that food such as fish can be pulled out to the front side. In addition, the electrical box 35 according to the present invention is disposed on the other side (the right side in the drawing is the right side) of the main body 2, that is, on the right side of the grill 7. The electrical box 35 is disposed on the front side of the electrical box 35. An operation panel 10 is disposed on the right side of the door 7A.

The induction heating coils 4, 5 and 6 are respectively supported by synthetic resin coil bases 4A, 5A and 6A, and are provided on a support plate portion 26 positioned below the top plate 3 as shown in FIG. The support boss 26A is attached with a screw 27. The support plate portion 26 may be specially provided, or may be formed of a ceiling plate that surrounds the grill 7 and an upper surface plate of the electrical box 35. Hereinafter, the support plate portion 26 is referred to as a ceiling plate 26. In the illustrated form, the coil base 4 </ b> A of the induction heating coil 4 is attached to the support boss 26 </ b> A of the ceiling plate 26 of the grill 7 with a screw 27. In addition, the coil base 5A of the induction heating coil 5 is attached to the support boss 39A of the upper surface plate 39 of the electrical box 35 with screws as will be described later, and the coil base 6A of the induction heating coil 6 is
As will be described later, a part is attached to the support boss 26A of the ceiling plate 26 of the grill 7 with screws 27, and the other part is attached to the support boss 39A of the upper surface plate 39 of the electrical equipment box 35 with screws.

The operation unit 10 includes a seesaw type power switch 11, three operation knobs 12 that perform push-on on / off, and an LED display unit 13 that is disposed corresponding to the three operation knobs 12. . The three operation knobs 12 correspond to the induction heating coils 4, 5 and 6, respectively, and are pulled out by a push operation, whereby the induction heating coils 4, 5
And 6 can be started by energizing, while being pushed by a push operation,
Their operation is stopped. Further, by rotating the operation knob 12 at the pull-out position, various settings such as heating power, cooking time, cooking temperature, etc. by the induction heating coils 4, 5, 6 can be performed.

A top plate frame 3A is provided on the outer periphery of the top plate 3, and an operation window 1 is provided on the front end side of the top plate frame 3A.
4 is perforated long in the left-right direction, and the operation window 1 is constituted by touch keys in the operation window 14.
5 is arranged. Touch areas such as a thermal key, a water heater key, and a deep-fried food key are formed on the operation unit 15 by printing. Further, in order to provide an exhaust port and an intake port at the rear portion of the top plate 3, a pair of left and right exhaust ports 16 and an intake port 17 are formed on the rear end side of the top plate frame 3A. On the other hand, a display unit 18 formed of a liquid crystal display panel with a backlight is provided between the operation unit 15 and the induction heating coils 4 and 5. The display unit 18 can display information related to cooking such as set thermal power, cooking time, cooking temperature, and the like in numbers and / or figures.

As shown in FIG. 2, the heating state indicator HP is formed on the front surface around the induction heating coils 4 and 5 on the coil bases 4A and 5A supporting the induction heating coils 4 and 5 by molding synthetic resin or the like. An arcuate light guide case 19 having a concave storage groove 19A having an upper opening is attached.
The concave storage groove 19A of the light guide case 19 stores a light guide 20 formed of an arc-shaped transparent resin material or the like (for example, acrylic resin) whose transverse side surface is square or circular. The arc-shaped strip-shaped light guide 20 is visible on the top plate 3 from the upper surface side, and the top plate 3 has an arc-shaped transparent light-transmitting portion 21 on the front side of the outer peripheral portion of the cooking container mounting portions 8, 8. Is formed, and the translucent portion 21 is formed.
A light guide case 19 is attached so that the light guide 20 is disposed directly below the light guide 20.

As shown in FIG. 3, the light guide 20 has light sources 22 arranged at both left and right ends thereof. Light source 2
2 includes an LED (light emitting diode) 23 that emits red light, an LED (light emitting diode) 24 that emits green light, and an LED (light emitting diode) 25 that emits blue light, and the intensity of heating by the induction heating coils 8 and 8 is increased. It emits visible light of different colors to display medium, weak operating conditions.

FIG. 4 is a block diagram showing the electrical control unit 28 of the induction heating cooker 1 of the present embodiment. As shown in FIG. 4, the induction heating cooker 1 includes a main control unit 29 having a microcomputer configuration that controls each part of the induction heating cooker 1, the display unit 13, the display unit 18, and the light source 2 shown in FIG. 1.
2, the operation control unit 10 according to the operation unit 10 and the operation unit 15 illustrated in FIG. 1.
T, a memory 30 for storing various data necessary for controlling the induction heating cooker 1, an audio output unit 31, a speaker 32 connected to the audio output unit 31, a cooking function control unit 33 for controlling the cooking function It has each part. The cooking function control unit 33 includes an IH4 control unit 33A that controls energization of the induction heating coil 4, an IH5 control unit 33B that controls energization of the induction heating coil 5, an IH6 control unit 33C that controls energization of the induction heating coil 6, and a grill 7 includes a grill control unit 33D that controls energization of the electric heater 7 and a fan control unit 33E that controls the operation of the fan 40 of the electrical box 35, and controls each unit having functions related to cooking of the induction heating cooker 1. It is supposed to be.

The electrical box 35 has a method of accommodating the entire electrical control unit 28 of the induction heating cooker 1 or accommodating a selected control unit in the control unit 28. The electrical box 35 may be configured to accommodate the entire control unit 28. However, in the embodiment, the arrangement relationship between each control circuit unit and a portion connected to the control circuit unit, the wiring between the control circuit boards, and the like are considered. In the electrical box 35,
The selected control unit in the control unit 28 is accommodated. In that case, the electrical box 35 has
A control unit having a large calorific value in the control unit 28 is accommodated, and the accommodated control unit is designated as a single fan 4.
By cooling with 0, stable operation is ensured.

Since the control units 33A, 33B, and 33C related to the energization control of the induction heating coils 4, 5, and 6 are circuit configurations including an inverter circuit for variably controlling the heat generation amount, they are control units having a large heat generation amount. For this reason, at least the control box 33A, 33B is provided in the electrical box 35.
, 33C, and the control units 33A, 33B, 33C are cooled, the induction heating coils 4, 5 are cooled, the induction heating coil 6 is cooled, and the periphery of the induction heating coils 4, 5 is cooled. The cooling of the periphery of the induction heating coil 6 is performed by a single fan 40.

In the illustrated form, the induction heating cooker 1 is a type including a grill 7, and the electrical box 3
5 is arranged in a space on the right side of the grill 7. Hereinafter, the configuration of the induction heating cooker 1 including the grill 7 will be described in detail with reference to FIGS. 5 to 8. The electrical box 35 is disposed immediately below the induction heating coils 4 and 5 and the box main body 35A accommodated in a state in which the control unit related to the energization control of the induction heating coils 4, 5 and 6 is attached to the printed wiring board. Air duct part 3
5B. The air duct portion 35B is disposed in the left-right direction (lateral direction) in a substantially horizontal state on the upper surface portion of the box main body portion 35A.

The box body 35A has a storage structure that is stacked in three layers, and the lowermost first layer includes:
A first accommodating portion 36 that accommodates one of the control portions 33A and 33B related to the energization control of the induction heating coils 4 and 5 is formed. In the second layer in the middle, induction heating coils 4 and 5
The 2nd accommodating part 37 which accommodates the control part (33A in the illustration) which concerns on the other electricity supply control among these is formed. And the control part 3 which concerns on the electricity supply control of the induction heating coil 6 is provided in the uppermost 3rd layer.
A third accommodating portion 38 that accommodates 3C is formed.

When induction heating coils 4 and 5 have the same calorific value, induction heating coil 4
Alternatively, one of 5 is accommodated in the first accommodating portion 36 and the other is accommodated in the second accommodating portion 37. Further, when the induction heating coils 4 and 5 have different heat generation amounts, the larger heat generation amount is stored in the first storage portion 36, and the smaller heat generation amount is stored in the second storage portion 37. In the illustrated one, since the induction heating coils 4 and 5 have the same calorific value, the first accommodating portion 36 may accommodate the control portion 33A related to the energization control of the induction heating coil 4, Induction heating coil 5
The control unit 33B related to the energization control is accommodated. Hereinafter, description will be made based on this accommodation state.

FIG. 5 is an exploded perspective view of the electrical box 35. As is clear from this, the first accommodating portion 3
6, the 2nd accommodating part 37 and the 3rd accommodating part 38 are the forms which were enclosed with the bottom wall and the surrounding wall, respectively, and the upper surface was open | released, and are formed by the shaping | molding of the synthetic resin, respectively. Control unit 33B including an inverter circuit relating to energization control of induction heating coil 5 is accommodated in first accommodating portion 36, and control including an inverter circuit relating to energization control of induction heating coil 4 is accommodated in second accommodating portion 37. Part 33
A is accommodated, and the third accommodating portion 38 accommodates a control portion 33C including an inverter circuit related to energization control of the induction heating coil 6.

The control unit 33B has a configuration in which an electrical component 33B1 and a heat radiating fin (formed of an extruded aluminum material) 33B2 constituting the control unit 33B related to energization control of the induction heating coil 5 are attached to a printed wiring board. The control unit 33A has a configuration in which an electrical component 33A1 and a heat radiating fin (formed of an extruded aluminum material) 33A2 constituting the control unit 33A related to energization control of the induction heating coil 4 are attached to a printed wiring board. is there. Further, the control unit 33C includes an electric component 33C1 and a heat radiating fin (formed of an aluminum extrusion material) 33C constituting the control unit 33C related to the energization control of the induction heating coil 6.
Reference numeral 2 denotes a configuration attached to a printed wiring board.

The electrical box 35 is configured to cool the control units 33B, 33A, 33C and the induction heating coil 4,
A fan 40 is incorporated in the rear part of the electrical box 35 in order to cool 5 and 6 and to cool the periphery thereof. As shown in FIG. 7, the fan 40 is configured such that the sirocco fan 40 </ b> A is driven by the electric motor 40 </ b> B, and a fan case 40 </ b> C surrounding the sirocco fan 40 </ b> A and the electric motor 40 </ b> B are attached to the rear part of the electrical box 35. The sirocco fan 40A sucks air from an air suction port 41 opened on the side surface of the fan case 40C and is discharged from an air discharge port 42 opened on the front side of the fan case 40C. For this reason,
The fan case 40C is attached to the rear part of the electrical box 35 so that the air discharge port 42 extends over both the air inlets 36E and 37E formed in the rear wall surfaces of the first storage part 36 and the second storage part 37. Thus, the amount of air flowing into the air inlets 36E and 37E from the air discharge port 42 is divided into P and Q by the rear end of the bottom wall 37T of the second storage part 37, and the first storage part 36 and the second storage part 37
It circulates into the accommodating part 37 by dividing into P and Q.

The electrical equipment box 35 is provided with a communication duct 44 on the side surface portion for communicating the air outlet of the first housing portion 36 and the air inlet of the air duct portion 35B. Also, to guide the cooling air,
A duct 43 on the air suction side to the single fan 40 is arranged on the rear side of the electrical box 35 so as to communicate with the intake port 17 on the rear side of the induction heating cooker 1. Ducts 3 formed in the vertical direction on the right side surfaces of the first storage portion 36, the second storage portion 37, and the third storage portion 38, respectively.
6D, 37D, and 38D are integrally formed by molding. The communication duct 44 is connected to the duct 3.
6D, 37D, and 38D communicate with each other, and the electrical box 35 is formed in the vertical direction on the right side surface. A lower end portion serving as an air suction port of the communication duct 44 is formed by the duct 36D,
The upper end portion of the duct 38D serving as the air discharge port of the communication duct 44 is in a state of communicating with the right end portion serving as the air suction port of the blower duct portion 35B. In addition, the duct 43 on the air suction side is
The electric box 35 may not be integrated.

In the state in which the control units 33B, 33A, and 33C are accommodated and the single fan 40 is attached, the first accommodation is performed so that the upper surface opening of the first accommodation unit 36 is closed by the bottom wall of the second accommodation unit 37. Part 3
The second accommodating portion 37 is placed in the upper surface opening of 6. In addition, the third housing portion 38 is placed on the upper surface opening of the second housing portion 37 so that the top surface opening of the second housing portion 37 is closed by the bottom wall of the third housing portion 38. Also,
The upper surface plate 39 is placed on the upper surface opening of the third housing portion 38 so as to close the upper surface opening of the third housing portion 38 with the upper surface plate 39. Further, the air duct portion 35B is placed in the left-right direction on the upper surface of the upper surface plate 39 so as to be positioned between the three support bosses 39A.

The first housing portion 36 and the second housing portion 37 are integrated by joining the formed flange-shaped coupling portions 36A and 37A1 with screws. Further, the second accommodating portion 37 and the third accommodating portion 38 are integrated by joining the formed flange-shaped connecting portions 37A2 and 38A1 with screws. Further, the third accommodating portion 38 and the upper surface plate 39 are integrated by connecting the formed flange-shaped connecting portions 38A2 and 39A1 with screws. Furthermore, the upper surface plate 39 and the air duct portion 35B are integrated by connecting a flange-shaped coupling portion 35B1 formed in the air duct portion 35B to the coupling hole 39A3 of the upper surface plate 39 with a screw. The electrical box 35 assembled in this way is shown in FIG.

By such an assembly, the lower end portion serving as the air suction port of the communication duct 44 is the first
The upper end portion that communicates with the right side surface of the housing portion 36 and serves as the air discharge port of the communication duct 44 is in a state of communicating with the right end portion that serves as the air suction port of the air duct portion 35B.

When the assembled electrical box 35 is stored and installed in the main body 2, the top plate 39
The flange-shaped coupling portion 39A2 formed in the above and the flange-shaped coupling portion 35B2 formed in the air duct portion 35B are coupled to the ceiling plate 26 of the grill 7 with screws. In this way, the electrical box 35 is housed and installed in the main body 2, whereby the lower surface of the blower duct portion 35 </ b> B is blocked by the ceiling plate 26 of the grill 7, thereby forming a left-right air duct. In addition,
The air duct portion 35B may be in the form of a duct whose lower surface is closed in advance so as to form an air duct by itself.

In the state where the electrical box 35 assembled as described above is housed and installed in the main body 2 as shown in FIG. 1, the air duct 35 </ b> B is located in the space between the ceiling of the grill 7 and the top plate 3. It is located in the lower part of the coil bases 4A and 5A that support the induction heating coils 4 and 5 in a substantially horizontal arrangement in the left-right direction. In this state, the air around the induction heating cooker 1 sucked from the intake port 17 at the rear of the induction heating cooker 1 by the operation of the fan 40 passes through the intake duct 43 communicating with the intake port 17, and the air Sirocco fan 40 from the inlet 41
As shown by the arrow in FIG. 8, the air flows into the air inlets 36 </ b> E and 37 </ b> E formed at the rear end portions of the first storage portion 36 and the second storage portion 37 from the air discharge port 42. The amount of air flowing into the air inlets 36 </ b> E and 37 </ b> E from the air discharge port 42 is divided into P and Q by the rear end of the bottom wall 37 </ b> T of the second storage part 37, and P is supplied to the first storage part 36 and the second storage part 37. Divided into Q and Q.

The air that has flowed into the first housing part 36 cools the control part 33B, and then flows through the communication duct 44 to the blower duct part 35B. On the upper surface of the air duct 35B, induction heating coils 4, 5 are provided.
A plurality of air discharge ports 35D are formed as air discharge portions at positions corresponding to the lower surface of the induction heating coils 4, 5 and a coil base 4A for supporting the induction heating coils 4, 5 by air discharged from the air discharge ports 35D, Cool peripheral members such as 5A. The air that has cooled the peripheral members such as the induction heating coils 4 and 5 and the coil bases 4A and 5A that support the coils flows along the space on the lower surface of the top plate 3, while the display control unit 18T and other parts are cooled. However, it is discharged out of the induction heating cooker 1 from the exhaust port 16 at the rear of the induction heating cooker 1.

As described above, the air that has flowed into the first housing portion 36 cools the control portion 33B, and then is discharged from the lower side of the induction heating coils 4 and 5 so as to cool the induction heating coils 4 and 5 and the peripheral portion thereof. An air passage flowing in the air is formed, and this is referred to as a first air passage.

On the other hand, the air that has flowed into the second accommodating portion 37 cools the control portion 33A, and then the second accommodating portion 37.
From the communication portion 45 formed at the front end portion of the first housing portion and the front end portion of the third housing portion 38 to the third housing portion 38,
The controller 33C is cooled. The air that has cooled the control unit 33C is formed along the guide wall 48 with the upper surface plate 39 from the first air discharge port 46 that is partly formed in the upper surface plate 39 corresponding to the rear end portion of the third housing portion 38. It is discharged into the space between the top plate 3. The upper surface plate 39 is formed with a plurality of second air discharge ports 47 as air discharge portions at positions corresponding to the induction heating coil 6 and the coil base 6A that supports the induction heating coil 6 to cool the control portion 33C. The air cools the induction heating coil 6 and the coil base 6A that supports the induction heating coil 6 by the air discharged from the second air discharge port 47.

The air discharged from the first air discharge port 46 into the space between the upper surface plate 39 and the top plate 3 and the air discharged from the second air discharge port 47 flow along the lower surface of the top plate 3, Each part is discharged from the induction heating cooker 1 to the outside of the induction heating cooker 1 through the exhaust port 16 at the rear of the induction heating cooker 1.

Thus, after the air flowing into the second housing part 37 cools the control part 33A, it flows into the third housing part 38 and cools the control part 33C, thereby cooling the induction heating coil 6 and its peripheral part. Thus, the flowing air passage is formed, and this is referred to as a second air passage.

As described above, in the electrical box 35, the air duct 35B passes through the communication duct 44 from the first housing portion 36 as an air passage through which cooling air discharged from the air discharge port 42 by the single fan 40 flows. A first air passage that cools the induction heating coils 4 and 5 and the periphery thereof, and a second air passage that flows from the second housing portion 37 to the third housing portion 38 and cools the induction heating coil 6 and the periphery thereof. Is formed. For this reason, the ratio of the amount of air blown by P and Q from the air discharge port 42 to the first housing portion 36 and the second housing portion 37 by the single fan 40 is the same as that of the first air passage and the second air passage. It is preferable that the air is diverted at a rate at which the cooling effect in the air passage is appropriately performed.

Induction heating coils 4 and 5, induction heating coil 6, and control unit 3 according to these energization controls
The amount of heat generated in the air passage is determined by the air passage in which 3B, 33A, and 33C are arranged. In the configuration of the embodiment, the first air passage is more than the amount of heat generated in the second air passage. This is a setting that generates a large amount of heat. For this reason, the diversion ratio of the air discharged from the air discharge port 42 by the fan 40 is determined so that the amount of air flowing through the first air passage is larger than the amount of air flowing through the second air passage.

As one of the embodiments, since the heat generation amount of the first air passage is substantially three times the heat generation amount of the second air passage, the air amount P flowing into the first storage portion 36 is the second storage portion. The air discharge port 42 is arranged with respect to the air inlet at the rear end of the first housing portion 36 and the second housing portion 37 so that the air amount 3 times the air amount Q flowing into the portion 37 flows. A preferable cooling effect is obtained by the configuration in which the air is blown while being divided from the air discharge port 42 at a ratio of 3: 1.

The electrical box 35 accommodates a control unit with a large calorific value in the control unit 28, and these control units are cooled by a single fan to ensure stable operation. In the configuration, the control units 33B, 33A and 33C related to the energization control of the induction heating coils 5, 4 and 6 which are the control units having a large calorific value in the control unit 28 are divided into three layers, each of which is the first. It is the structure accommodated in the accommodating part 36, the 2nd accommodating part 37, and the 3rd accommodating part 38. FIG.

However, the operation control unit 10T, the display control unit 18T, the main control unit 29, the memory 30, the sound output unit 31, the grill control unit 33D, and the fan control unit 33E, which are other parts of the control unit 28, are provided.
Among them, the selected one or all of them may be housed in any one of the first housing portion 36, the second housing portion 37, and the third housing portion 38 or in a distributed manner. For example, you may make it accommodate the grill control part 33D with a large emitted-heat amount in the 1st accommodating part 36. FIG. Alternatively, the grill control unit 33D may be stored in the first storage unit 36, and the main control unit 29 may be stored in the second storage unit 37 or the third storage unit 38. Further, as shown in FIG. 1, the display control unit 18T
Are arranged in the lower space of the top plate 3, and the other operation control unit 10T, the main control unit 29, and the memory 3 are arranged.
0, the audio output unit 31, the grill control unit 33D, and the fan control unit 33E may be distributed and accommodated in the first accommodation unit 36, the second accommodation unit 37, and the third accommodation unit 38, respectively.

Also in this case, the heat generation amount of the first air passage is larger than the heat generation amount of the second air passage. For this reason, the diversion ratio of the air discharged from the air discharge port 42 by the fan 40 is determined so that the amount of air flowing through the first air passage is larger than the amount of air flowing through the second air passage. In the configuration in which the heat generation amount of the first air passage is substantially three times the heat generation amount of the second air passage, the air amount P flowing into the first housing portion 36 flows into the second housing portion 37. The air discharge port 42 is arranged with respect to the air inlets at the rear ends of the first storage portion 36 and the second storage portion 37 so that an air amount three times as large as the air amount Q flows. A preferable cooling effect is obtained by the structure in which the air is blown while being divided into a ratio of 3: 1.

Moreover, although the induction heating cooking appliance 1 demonstrated above is provided with the induction heating coils 5, 4, and 6, it is provided with one induction heating coil (for example, induction heating coil 5) of one calorific value, and one In the induction heating cooker 1 including the induction heating coil 6 with a small calorific value, the control unit 33C is accommodated in the second accommodating part 37, and the second accommodating part 38 is omitted. The second housing part 37 is placed on the top opening, and the top opening of the second housing part 37 is closed by the top plate 39.
An upper surface plate 39 is placed on the upper surface opening of the accommodating portion 37. In addition, the air duct portion 3
What is necessary is just to set it as the structure which mounts 5B in the left-right direction state.

In this case, as an air passage through which the cooling air discharged from the air discharge port 42 by the single fan 40 flows, control related to energization control to the one induction heating coil (for example, the induction heating coil 5) having a large calorific value. A first induction heating coil side air passage that flows through the accommodating portion 36 that accommodates the portion 33B, discharges from the blower duct portion 35B through the ducts 36D and 37D, and cools the induction heating coil 5 and its peripheral portion; It flows through the accommodating portion 37 that accommodates the control portion 33C related to the energization control to the induction heating coil 6 with a small amount of heat generation, and is discharged from the lower side of the induction heating coil 6 with a small amount of heat generation, so that the induction heating coil 6 and the peripheral portion are A second induction heating coil side air passage to be cooled is formed. Also in this case, since the heat generation amount of the first induction heating coil side air passage is larger than the heat generation amount of the second induction heating coil side air passage, the fan 40 is larger than the air amount of the second induction heating coil side air passage. The air discharge port 42 is formed with air inlets 36E and 37E formed on the rear surfaces of the housing portions 36 and 37 in such a relationship that a large amount of air flows in the first induction heating coil side air passage.
It is attached to the electrical equipment box 35 so that it may extend over both.

The induction heating cooker 1 described in the first embodiment includes the induction heating coils 5, 4 and 6, but instead of the induction heating coil 6, a radiant heater (also referred to as a radial heater),
(Hereinafter referred to as RH). In this case, the electrical control unit 28 shown in FIG. 4 may be provided with a control unit (hereinafter referred to as the control unit 33H) related to energization control of the radiant heater instead of the IH6 control unit 33C. Electrical box 3
If this control part 33H is accommodated in the 5th 3rd accommodating part 38 and the flow of air similar to the above is formed, the effect similar to the above can be achieved.

1 to 8 and the above description, the induction heating coil 6 is a radiant heater RH, and the IH6 controller 33C is a radiant heater energization controller 33H.
If so, the other parts are the same as described above. The technical means in this case are as follows.

That is, the induction heating cooker 1 according to the sixth aspect of the present invention includes a top plate on the upper surface of the main body, and controls the induction heating coil, the radiant heater, and the energization control of the induction heating coil inside the main body. And an induction heating cooker that includes an electrical box that houses a control unit related to energization control to the radiation heater, wherein the electrical box is a housing unit that houses a control unit related to energization control to the induction heating coil And an air duct portion disposed immediately below the induction heating coil so as to discharge air flowing in the housing portion from the lower side to the induction heating coil, and the radiation type laminated on the housing portion in a detachable manner. And a single fan that discharges air flowing through each of the storage units. The electrical box includes air that is discharged from the fan through the induction heating. Inductive heating coil-side air passage that flows through a housing portion that houses a control unit for energization control of the air and discharges from the air duct portion to cool the induction heating coil and its peripheral portion, and air discharged from the fan Forms a radiant heater side air passage that flows through a housing portion that houses a control unit related to energization control of the radiant heater and discharges from the lower side of the radiant heater to cool the radiant heater and the peripheral portion. And the air discharge port of the said fan is arrange | positioned with respect to the air inlet_port | entrance of the said induction heating coil side air path and the said radiation type heater side air path, It is characterized by the above-mentioned.

An induction heating cooker according to a seventh aspect of the present invention includes a top plate on the upper surface of the main body, and is disposed on the back side of the center of the induction heating coil arranged left and right inside the main body and the left and right induction heating coils. In an induction heating cooker comprising an radiant heater and an electric box that houses a control unit for controlling energization of the induction heating coil and the radiant heater, the electric box is one induction heating in the left-right arrangement. A first accommodating portion that accommodates a first control portion related to energization control of the coil;
A blower duct portion disposed in the left-right direction directly below each induction heating coil so as to discharge air flowing in the first housing portion from the lower side to the induction heating coil, and detachable on the first housing portion And a second accommodating portion for accommodating a second control unit for controlling energization to the other induction heating coil arranged in the left and right direction, and a detachable laminated on the second accommodating portion, to the radiation heater. A third housing portion that houses a third control portion related to energization control, and a single fan in which an air discharge port is disposed with respect to the air inlet port of the first housing portion and the second housing portion, The electrical box is a first air passage that cools the induction heating coil and the peripheral portion by flowing through the first housing portion and discharging from the air duct portion so that the air discharged from the fan flows in a diverted manner, The third housing portion flows from the second housing portion. Wherein the ejected from the lower side of the radiant heater to form a second air passage for cooling the radiant heater and the peripheral portion.

An induction heating cooker according to an eighth aspect of the present invention includes a top plate on the upper surface of the main body, and maintains a gap between the pair of induction heating coils and the pair of induction heating coils arranged at intervals in the main body. And an induction heating cooker in which a control unit related to energization control of the induction heating coil and the radiant heater is housed in an electrical box, wherein the electrical box is the pair of induction heaters. For energization control of the other induction heating coil, which is detachably stacked on the first accommodation portion, and a first accommodation portion that accommodates a first control unit related to energization control to one induction heating coil of the coil A second accommodating portion that accommodates the second control portion, a third accommodating portion that accommodates a third control portion that is detachably stacked on the second accommodating portion, and that controls the energization of the radiation heater; The sky that has flowed through the first container Are blown into the induction heating coils from the lower side, and the air duct is arranged at a position directly below the induction heating coils, and the air is divided into the first housing portion and the second housing portion. A first air passage through which air discharged from the fan flows through the first housing part and is discharged from the air duct part to cool the induction heating coils and the peripheral part. And the air discharged from the fan is the second
A second air passage is formed which flows from the housing portion through the third housing portion and discharges from the lower side of the radiation heater to cool the radiation heater and the peripheral portion.

An induction heating cooker according to a ninth aspect of the present invention includes a top plate on the upper surface of the main body, and maintains a gap between the pair of induction heating coils and the pair of induction heating coils arranged at intervals inside the main body. And an induction heating cooker in which a control unit related to energization control of the induction heating coil and the radiant heater is housed in an electrical box, wherein the electrical box is the pair of induction heaters. For energization control of the other induction heating coil, which is detachably stacked on the first accommodation portion, and a first accommodation portion that accommodates a first control unit related to energization control to one induction heating coil of the coil A second accommodating portion that accommodates the second control portion, a third accommodating portion that accommodates a third control portion that is detachably stacked on the second accommodating portion, and that controls the energization of the radiation heater; The sky that has flowed through the first container From the lower side of each induction heating coil so as to be discharged from the lower side to each induction heating coil, and air is discharged from the rear part into the first housing part and the second housing part. And the electrical box has a communication duct that communicates the air outlet of the first housing part and the air inlet of the blower duct part on the side surface part, and the front end part of the second housing part And a communication part through which air flows from the second accommodation part to the third accommodation part at the front end of the third accommodation part, and the air discharged from the fan passes through the communication duct from the first accommodation part and the air flow. A first air passage that discharges from the duct portion and cools each induction heating coil and the peripheral portion, and air discharged from the fan flows from the second housing portion to the third housing portion and below the radiant heater. Discharge from the side And characterized by forming a second air passage for cooling the Ishiki heater and the peripheral portion.

As a result, the following effects can be obtained. That is, according to the sixth to ninth inventions, the induction heating cooker has an induction heating coil and a radiant heater (also called a radiant heater).
The control unit of the induction heating coil and the radiant heater is housed in an electrical box, cooling of the control unit, cooling of the induction heating coil and its peripheral members, and further, the radiant heater and its peripheral members Thus, it is possible to provide an electrical box configuration in which the cooling can be effectively performed by a single fan.

The electrical equipment boxes of the sixth to ninth inventions are configured such that the control unit corresponding to the induction heating coil and the control unit corresponding to the radiant heater are accommodated in different accommodating portions, and these accommodating portions are laminated. By adopting a configuration in which this single fan is integrated into the electrical box so that air is diverted to each accommodating portion by a single fan and air is sent.
Each housing part serves as an air duct, so that the cooling effect of these control parts can be improved, and the control part corresponding to the induction heating coil and the radiant heater is housed in which housing part. It is easy to determine whether or not the service is improved, such as repair and inspection of the corresponding control unit.

Further, in the seventh to ninth inventions, in the induction heating cooker provided with two induction heating coils and one radiant heater, the control unit for controlling energization to the radiant heater and the two induction heating coils are provided. Each control unit related to the energization control is a three-layer stacked electrical box housed in a separate housing part, and a single fan is integrated into the electrical box, and the air from this fan is divided into three-layer stacked By being sent to each housing portion, each housing portion serves as a duct for air blowing, so that the cooling effect can be improved, and the control unit and the radiation type corresponding to each induction heating coil The control unit corresponding to the heater can easily determine in which storage unit the control unit is accommodated, and improvement of service such as repair / inspection of the corresponding control unit can be achieved.

Further, in each of the three-layer stacked housing units as described above, the electrical box and the fan are integrated so that the amount of air blown from a single fan is diverted according to the heat generation amount of the air passage passing through each of the housing units. It will be possible to achieve it.

The induction heating cooker according to the present invention is not limited to the configuration shown in the above embodiment, but can be applied to various forms, and includes various forms within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Induction heating cooker 2 ... Main-body part 3 ... Top plate 4 ... Induction heating coil 5 ... Induction heating coil 6 ... Induction heating coil or radiant heater (radiant heater)
7 ... Grill 7A ... Grill door 8, 9 ... Cooking container placement part 10 ... Operation panel 11 ... Power switch 12 ... Operation knob 13 ... -Display unit 14 ... Operation window 15 ... Operation unit 16 ... Exhaust port 17 ... Intake port 18 ... Display unit 18T ... Display control unit 19 ... Light guide case 20... Arc-shaped light guide 21... Translucent part 22.
24 ... LED
25 ... LED
26... Support plate (grill ceiling plate)
27 ... Screw 28 ... Electric control unit 29 ... Main control unit 30 ... Memory 31 ... Audio output unit 32 ... Speaker 33 ... Cooking function Control unit 33A ... IH4 control unit 33B ... IH5 control unit 33C ... IH6 control unit 33D ... Grill control unit 33E ... Fan control unit 35 ... Electric box 35A ... Box body Part 35B: Air duct part 36 ... First housing part 36D ... Duct 36E ... Air inlet 37 ... Second housing part 37D ... Duct 37E ... Air inlet 37T .... Bottom wall 38 ... Third housing part 38D ... Duct 39 ... Top plate 40 ... Fan 40A ... Sirocco fan 40B ... Electric motor 40C ... Fan case 41 ... Air suction ················· Air discharge port 43 ·················································································· 48 ... Guide wall

Claims (5)

In an induction heating cooker provided with a top plate on the upper surface of the main body, a plurality of induction heating coils inside the main body, and an electrical box that houses a control unit related to energization control of each induction heating coil The electrical box has a storage section that is detachably stacked so as to store a control section that controls energization of the induction heating coil, and the air that has flowed through the storage section. An air passage that discharges from the lower side to the heating coil and a single fan that discharges air flowing through each of the housing portions are provided, and an air discharge port of the fan is disposed with respect to an air inlet of each of the housing portions. An electrical box for an induction heating cooker characterized by that. In the induction heating cooker provided with a top plate on the upper surface of the main body part, and provided with an induction heating coil inside the main body part and an electrical box that houses a control unit related to energization control to each induction heating coil, The induction heating coil is disposed inside the main body on the front side and the rear side, and includes respective control units that control energization to the induction heating coil, and the electrical box energizes the induction heating coil on the front side. A housing portion A for housing each control unit to be controlled, and a blower duct portion disposed directly below the induction heating coil on the front side so that the air flowing in the housing portion is discharged from the lower side to the induction heating coil on the front side A storage unit B that is detachably stacked on the storage unit A and stores a control unit that controls energization of the induction heating coil on the rear side; and a single unit that discharges air flowing through the storage units With fans The electrical box is provided with the induction heating on the front side when the air discharged from the fan flows through the housing part A that houses the control unit related to the energization control to the induction heating coil on the front side and is discharged from the air duct part. After the first induction heating coil side air passage for cooling the coil and its peripheral part, and after the air discharged from the fan flows through the accommodating part B that accommodates the control part related to the energization control to the induction heating coil on the rear side A second induction heating coil side air passage that discharges from the lower side of the induction heating coil on the side and cools the induction heating coil on the rear side and the periphery thereof, and the first induction heating coil side air passage; An electrical box for an induction heating cooker, wherein an air discharge port of the fan is disposed with respect to an air inlet of the second induction heating coil side air passage. A top plate is provided on the upper surface of the main body, and the first and second induction heating coils on the left and right arranged inside the main body, and the rear first arranged on the center back side of the left and right induction heating coils. In an induction heating cooker including a three induction heating coil, and an electrical box that houses a control unit related to energization control of the first and second induction heating coils and the third induction heating coil, the electrical box is A first housing portion that houses a first control unit that controls the energization of the first induction heating coil, and air that has flowed through the first housing portion is discharged from below into the first and second induction heating coils. The air duct portion disposed in the left-right direction directly below each induction heating coil and the second control portion related to energization control to the second induction heating coil that is detachably stacked on the first housing portion are accommodated. A second accommodating portion, and the second accommodating portion A third housing part which is detachably stacked on the container part and houses a third control part for controlling energization of the third induction heating coil; and an air inlet of the first housing part and the second housing part. And a single fan in which an air discharge port is disposed, and the electrical box flows through the first housing portion and discharges from the air duct portion so that air discharged from the fan flows in a diverted manner. And a first air passage for cooling the first and second induction heating coils and the periphery thereof, and a flow from the second housing part to the third housing part and discharging from the lower side of the third induction heating coil. An electrical box for an induction heating cooker, wherein the third induction heating coil and a second air passage for cooling the periphery thereof are formed. A top plate is provided on the upper surface of the main body, and a large amount of front induction heating coil disposed on the left and right inside the main body, and a small amount of heat generated on the center back side of the left and right induction heating coils. In an induction heating cooker including an induction heating coil on the side and an electrical box that houses a control unit related to energization control to each induction heating coil, the electrical box is connected to one induction heating coil in the left-right arrangement. A first accommodating portion that accommodates a first control unit related to energization control, and each induction having a large calorific value so that the air that has flowed through the first accommodating portion is discharged from the lower side to the induction heating coil having a large calorific value. A blower duct portion disposed in the left-right direction directly below the heating coil and a second control unit for detachably layering on the first housing portion and controlling the energization of the other induction heating coil in the left-right placement are housed. A second accommodating portion and the second A third accommodating part for accommodating a third control part relating to energization control to the induction heating coil having a small calorific value, which is detachably stacked on the container part; and air that has flowed through the first accommodating part is supplied to the air duct. A communication duct formed on a side surface portion for feeding to a portion, and a single fan that diverts air into the first housing portion and the second housing portion and discharges air, and the electrical box is discharged from the fan. In order to flow the air flowing in a diverted flow, the first heating part flows through the communication duct and is discharged from the blower duct part to cool the induction heating coil having a large calorific value and its peripheral part. A second air passage and a second heat that flows from the second housing portion to the third housing portion and is discharged from the lower side of the induction heating coil having a small heat generation amount to cool the induction heating coil having a small heat generation amount and its peripheral portion. It is characterized by forming an air passage Electrical heating cooker of the electrical box. A radiant heater was provided instead of the rear induction heating coil, and a control unit related to energization control to the radiant heater was provided instead of the control unit related to energization control to the rear induction heating coil. An electrical box for an induction heating cooker according to any one of claims 2 to 4.

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