JP2001319762A - Induction heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an induction heating cooker of a stationary type in which an exhaust air is made not to be introduced again from an intake port and in which a roaster part is equipped. SOLUTION: An exhaust port (opening 27) is installed at a rear part of a main body outer sheath where the roaster part 25 is located, and by constituting that an opening direction of the intake port 34 is different from an opening direction of the exhaust port 27, the air discharged from the exhaust port 27 is made not to be introduced from the intake port 34 again, realizing the induction heating cooker of stationary type in which a cooling performance can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stationary induction heating cooker in a kitchen or the like having a roaster.

[0002]

2. Description of the Related Art Conventionally, an induction heating cooker of this type is used by being placed on a cabinet 1 in a kitchen as shown in a perspective view of FIG.

The induction heating cooker has legs 3 for supporting the main body 2 on the outer bottom surface of the box-shaped main body 2, and a top plate 4 is provided on the outer top surface. A pair of induction heating coils 5 and 6 are installed on the left and right sides of a substantially symmetric shape, and cooling fans 7 and 8 are provided on the lower front side, and drive circuit boards 9 and 10 are provided on a lower rear side.
6 corresponds to each. The cooling fans 7 and 8 have intake ports 11 and 12 below. The exhaust port 13 is provided on the back of the main body.

According to the above configuration, since the individual induction heating coils 5, 6 and the drive circuit boards 9, 10 are cooled by the individual cooling fans 7, 8, the inside of the main body can be realized very efficiently. Met. FIG. 8 is a schematic diagram showing the flow of cooling air in the main body. External air is sucked from the cabinet 1 secured by the legs 3 and the space on the bottom surface of the main body from the intake ports 11 and 12 provided on the bottom surface of the main body (flow of intake air: 14). The outside air sucked from the inlets 11 and 12 cools the induction heating coils 5 and 6 and the drive circuit boards 9 and 10 (flow of cooling air inside the main body: 15), and from the exhaust port 13 provided on the rear surface of the main body. It is discharged to the outside (flow of exhaust air of the cooling air of the main body: 16).

[0005]

However, according to the above-mentioned conventional configuration, two cooling fans 7, 8 are provided for the two induction heating coils 5, 6 and the drive circuit boards 9, 10.
In addition, the air exhausted from the exhaust port 13 provided on the back of the main body hits the wall of the kitchen for installation and use on the cabinet 1, and a part of the bottom is used. , And the exhaust gas having a relatively high temperature is re-inhaled from the intake ports 11 and 12, thereby affecting the cooling performance.

In addition, the main body 2 does not have a roaster function, and when roaster cooking is performed in a kitchen, another cooker having a roaster function is required, and a cooking space must be secured. . Moreover,
An intake port 11, which takes in outside air necessary for cooling the induction heating coils 5, 6 and the drive circuit boards 9, 10 in front of the bottom of the main body.
12, the roaster cannot be installed with the current configuration, and the width and height dimensions of the main body to be installed in the kitchen are fixed, so the interior space is sufficient for the configuration. It has been difficult to provide an induction heating cooker equipped with a roaster.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an apparatus having an induction heating coil, a driving circuit, and a cooling fan in a main body, the roaster having a sufficient size in the main body. Another object of the present invention is to provide a stationary induction heating cooker in which the efficiency and efficiency of cooling performance are improved by improving the positions and shapes of an exhaust port and an intake port.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 has a top plate having legs for supporting a main body on a bottom surface forming an outer shell of the main body, and a top plate on which a cooked utensil is placed on a top surface, and the top plate. A plurality of induction heating coils provided at the bottom of the
A roaster below the plurality of induction heating coils, and a space other than where the roaster is arranged, a drive circuit for controlling energization, and a cooling fan for cooling the inside of the main body, and a rear part of the main body outer shell where the roaster is located. A roaster exhaust port is provided, and the roaster is installed in the main body without difficulty by not setting the exhaust direction in which hot air and smoke are discharged from the roaster exhaust port and the intake direction for sucking outside air from the main body cooling air inlet into the same direction. It is possible to improve the cooling performance by eliminating the wind exhausted from the roaster exhaust port again from the intake port. Further, even if liquid is spilled from the cooking container placed on the top plate, there is no need to worry about infiltration into the inside of the main body directly from the top surface, and the device can be used with confidence.

The invention according to a second aspect of the present invention has a structure in which a wall is accessible near the outer shell except for a top surface and a front surface of the outer shell of the main body when the main body is installed, and a leg for supporting the main body is provided on a bottom surface of the outer shell of the main body. ,
A top plate on which the cooked utensil is placed on the top surface; a plurality of induction heating coils provided below the top plate; and a lower side than the plurality of induction heating coils, and a right or left side from a substantially center of the main body. Or roaster on one side,
A drive circuit for controlling energization, and a cooling fan for cooling the inside of the main body between the drive circuit and the rear surface of the main body outer shell are provided in a space on the opposite side where the roaster is disposed, and a main body outer shell on the side where the roaster is located. A roaster exhaust port is provided on the rear upper surface, and an exhaust direction in which hot air and smoke are exhausted from the roaster exhaust port is the same as an intake direction of suction from an intake port provided on a rear surface of a main body outer side opposite to a side where the roaster is located. Since it is not the direction, the same effect as the first aspect of the invention can be obtained.

According to a third aspect of the present invention, the exhaust port for discharging the cooling air for cooling the main body is configured to be discharged from the same opening of the roaster exhaust port at the rear part of the outer shell of the main body where the roaster is located. Since there is no exhaust port for cooling the main unit in the plane where the port is located, re-inhalation of exhaust air is eliminated, exhaust to the outside can be concentrated in one place, and there is no exhaust opening around the outer shell of the main unit. We can make design clear.

According to a fourth aspect of the present invention, an exhaust port is provided at a rear portion of the outer casing of the main body where the roaster is located, and a first port is provided at the back of the outer casing of the main body.
In particular, in the case of installing in a kitchen cabinet, the first intake port provided on the back surface is shielded for some reason by having a configuration having the second intake port on the bottom surface of the main body and the intake port of the main body. Also, a space is secured in the second air intake port on the bottom surface by the legs for supporting the main body, and the air intake port is entirely shielded, so that it is not immediately broken due to a rise in the temperature of the drive circuit in the device. Furthermore, since there is no opening on the top surface,
The noise generated by the cooling fan or the like can be reduced.

According to a fifth aspect of the present invention, when the main body is installed, the wall is close to the outer periphery except for the top surface and the front surface of the main body, and the bottom surface of the main body has legs for supporting the main body. ,
A top plate on which the cooked utensil is placed on the top surface; a plurality of induction heating coils provided below the top plate; and a lower side than the plurality of induction heating coils, and a right or left side from a substantially center of the main body. Or roaster on one side,
A drive circuit for controlling energization, and a cooling fan for cooling the inside of the main body between the drive circuit and the rear surface of the main body outer shell are provided in a space on the opposite side where the roaster is disposed, and a main body outer shell on the side where the roaster is located. A roaster exhaust port and an exhaust port for discharging cooling air for cooling the main body are provided on the rear upper surface, and a first air intake port for cooling the main body is provided on the rear side of the main body outer side opposite to the side where the roaster is located. By providing a second intake port which also has a drain hole, the same effect as the effect of the invention according to claim 4 can be obtained.

[0013]

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a state in which a stationary induction heating cooker main body of the present invention is installed in a kitchen cabinet, and FIG. 2 is a schematic diagram showing the flow of exhaust air in a roaster cabinet and the flow of cooling air in the main body.

In FIG. 1, a box-shaped main body 21 has a top plate 22 mounted on an upper surface thereof, and two induction heating coils are provided below the top plate 22 on the left side of a substantial center of the main body 21 to the left. A coil 23 and a right induction heating coil 24 are disposed on the right side. The roaster section 25 is provided below the left induction heating coil 23. Since the height dimension of the main body 21 is limited, only the left induction heating coil 23 is disposed in a limited space via the heat shielding partition 26 on the upper left side of the main body where the roaster section 25 is disposed. Have been. The exhaust in the roaster unit 25 is provided with an opening (a) 27 at the rear of the upper surface of the main body 21 and is exhausted therefrom. The interior of the roaster unit to the opening (a) 27 is connected from the rear of the roaster unit 25 via an exhaust duct 28.

Drive circuit boards 29 and 30 corresponding to the left and right induction heating coils respectively constitute a laminated structure in front of and below the right induction heating coil 24. Further, the drive circuit boards 29 and 30 stacked behind the drive circuit boards 29 and 30
There is one cooling fan 31 that can simultaneously cool the cooling fan 31, and a cooling fan motor 32 that drives the cooling fan 31 is attached above the cooling fan 31, and is covered by an intake fan case 33. Further, an intake port 34 is provided on the outer rear surface of the main body 21, and the intake port 34 is connected to the intake fan case 33. The cooling air blown from the discharge port 33-a of the intake fan case 33 cools the drive circuit boards 29, 30 and the left and right induction heating coils 23, 24 arranged in a laminated structure, and exhausts air from the heat shielding partition 26. 28
Since the side has a wall, it passes through the upper surface to the left and is discharged from the opening (b) 35 on the left side of the main body. As described above, the main body 21 is entirely integrated by the outer shell, supported by the legs 36 provided at the bottom of the outer shell, and placed on the cabinet 37 of the kitchen.

Next, the operation of this embodiment will be described with reference to FIG. In all the combinations using the left and right induction heating coils 23 and 24 and the roaster unit 25, the cooling fan motor 32 is energized, and when the cooling fan 31 rotates by driving the cooling fan motor 32, the cooling fan 31 Then, external air (flow of intake air: 38) is sucked in from the intake port 34 and cools the drive circuit boards 29 and 30 arranged in a laminated structure in front of the discharge port 33-a of the intake fan case 33. While flowing through the main body (flow of cooling air inside the main body: 39), the air is exhausted from the opening (b) 35 on the left side surface of the main body (flow of exhaust air of the main body cooling air: 40). Exhaust gas in the roaster compartment 25 is exhausted from the opening (a) 27 on the rear upper surface of the main body (flow of exhaust gas in the roaster compartment: 41).

As a result, the exhaust in the roaster section 25 and the relatively high-temperature exhaust used for cooling the inside of the main body are supplied to the opening (a) 27 on the upper surface of the main body and the opening (b) 35 on the left side of the main body, respectively. By providing the intake port 34 on the back of the main body, which is different from the opening direction of each exhaust port, it is possible to prevent the exhaust gas whose temperature has become relatively high due to cooling in the main body from being taken in from the intake port 34 again, and to keep fresh air. Since it is possible to inhale a great amount of outside air, it can be used without deteriorating the cooling performance inside the main body. In addition, since it is difficult to re-inhale hot air, the protection device does not operate due to a temperature rise inside the main body due to the hot air.

Further, since the exhaust ports for the roaster and the main body cooling are located on the rear side of the upper surface of the main body and on the left side of the main body, respectively, in addition to the exhaust heat not directly hitting the user, the main body can be used when water spills on the top plate. Water infiltration does not easily occur. In addition, since a single cooling fan is used, noise can be reduced as compared with the conventional case, and the upper surface is flat except for the opening of the exhaust port, so that the cooking space can be expanded. In addition, the intake port can be used safely without being inadvertently blocked during cooking.

The present invention is not limited to the above-described embodiment, but may use one drive circuit board, or use three or more induction heating coils or drive circuit boards. Even if the opening of the mouth is located at a position other than the upper surface, the direction of suction of the outside air from the suction port may not be the same as the direction in which hot air or smoke is discharged from the discharge port. Further, in this embodiment, the exhaust for cooling the main body is performed on the side surface of the main body, but may be performed at a location other than the side surface.

(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a perspective view showing a state in which the stationary induction heating cooker main body of the present invention is installed in a kitchen cabinet, and FIG. 4 is a schematic view showing the flow of exhaust air in the roaster cabinet and the flow of cooling air in the main body. In FIG. 3, a main body 51, a top plate 52,
Left induction heating coil 53, right induction heating coil 54, roaster section 55, exhaust duct 58, drive circuit boards 59, 6
0, cooling fan 61, cooling fan motor 62, intake fan case 63, discharge port 63-a, intake port 64, leg 6
5. The cabinet 66 has the same configuration as in the first embodiment. The difference from the first embodiment is that the wall of the heat shield partition 56 on the exhaust duct 58 side is removed, and the opening (b) 35 for cooling the main body provided on the left side of the main body is eliminated, and the opening (c) is removed. ) 57 is provided at the same location as the opening for exhausting the roaster.

FIG. 4 shows the flow of cooling air in the main body in this embodiment. The outside air is sucked from the air inlet 64 (flow of the intake air: 67), and the drive circuit boards 59,
60 and the left and right induction heating coils 53 and 54 are cooled (flow of cooling air inside the main body: 68), passed through the upper surface of the heat shielding partition 56, and discharged from the opening (c) 57 at the rear of the main body. Exhaust flow of main body cooling air: 68-a). At this time, the exhaust gas in the roaster warehouse is also discharged together with the opening (c) 57 (flow of exhaust gas in the roaster warehouse: 68−).
b).

With this configuration, the following effects can be obtained.
By providing the exhaust opening for cooling the main body at the same location as the exhaust opening for the roaster, not only the effect of the first embodiment but also the relatively high-temperature wind of the roaster and the exhaust for cooling the main body is collectively sent to the outside. It can be discharged and there is no extra opening around the outer shell, so the design is cleaner.

(Embodiment 3) A third embodiment of the present invention will be described below with reference to FIGS. FIG. 6 is a perspective view showing a state in which the stationary induction heating cooker main body of the present invention is installed in a cabinet of a kitchen, and FIG. 6 is a schematic view showing the flow of exhaust air in the roaster cabinet and the flow of cooling air in the main body.

In FIG. 5, a main body 71, a top plate 72, a left induction heating coil 73, a right induction heating coil 74,
Roaster part 75, heat shield partition 76, opening (c) 77,
Exhaust duct 78 Drive circuit boards 79 and 80, cooling fan 81, cooling fan motor 82, intake fan case 8
3. The discharge port 83-a, the leg 85, and the cabinet 86 have the same configuration as in the second embodiment. The second embodiment is different from the second embodiment in that a first intake port 84-a is provided on the rear surface of the main body shell and a second air intake port 84-b is provided on the bottom surface of the main body shell.
4-a and the second intake port 84-b are connected to the intake fan case 8
3 in that it is configured to be connected.

FIG. 6 shows the flow of cooling air in the main body in this embodiment. Outside air (the flow of intake air from the first intake port: 87-a) sucked from the first intake port 84-a, and outside air (the second intake air) sucked from the second intake port 84-b. The flow of the intake air from the ports: 87-b) is discharged together from the discharge ports 83-a, and cools the drive circuit boards 79, 80 and the left and right induction heating coils 73, 74 arranged in a laminated structure ( The flow of cooling air inside the main body: 88), the heat shielding partition 56
And is discharged from the opening (c) 77 at the rear part of the outer shell of the main body (flow of exhaust air of the main body cooling air: 89-a). At this time, the exhaust gas in the roaster warehouse is also discharged from the opening (c) 77 together (the flow of the exhaust gas in the roaster warehouse: 89−
b).

With this configuration, the following effects can be obtained.
By providing the first air inlet 84-a and the second air inlet 84-b, not only the effects of the first and second embodiments but also the rear surface can be provided when installed in the kitchen cabinet 86. Even if the first intake port 84-a provided is shielded for some reason, the second intake port 84-b on the bottom surface is secured by the legs 85 for supporting the main body, and all the intake ports are shielded. As a result, the temperature of the drive circuit in the device does not cause immediate breakage or the protection device to work. The same is true even if the second intake port 84-b is blocked for some reason. Further, by making the intake area larger than in the first and second embodiments, the pressure loss to the cooling fan can be reduced, and the outside air can be efficiently sucked. In addition, if the first inlet 8
4-a even if water or foreign matter enters from the 4-a.
Is discharged to the outside through the opening, so that the reliability of the main body of the cooking device can be improved against malfunctions without easily hitting the fan motor.

The present invention is not limited to the above-described embodiment, and the second air inlet may be provided in front of the bottom surface.

[0028]

As described above, according to the first and second aspects of the present invention, it is possible to prevent the exhaust of the roaster main body and the exhaust whose temperature has become relatively high due to the cooling of the main body from being taken in from the intake port again. Since fresh fresh air can always be sucked in, it can be used without deteriorating the cooling performance inside the main body. Also, it is difficult to re-inhale hot air,
The protection device does not operate when the temperature inside the main body rises due to hot air. Furthermore, since the roaster and the exhaust port for cooling the main unit are located on the left side of the main unit and the rear of the main unit, respectively,
In addition to the exhaust heat not directly hitting the user, water does not easily enter the main body when water spills on the top plate. In addition, since only one cooling fan is used, noise can be reduced, and the upper surface is flat except for the opening of the exhaust port, so that the cooking space can be expanded. Thus, it is possible to realize an induction heating cooker that can be used safely without inadvertently shielding the intake port.

According to the third aspect of the present invention, since there is no exhaust port for cooling the main body in the plane where the intake port is located, re-intake of exhaust air is eliminated and exhaust to the outside is reduced to one place. It can be integrated and the design can be made neat by eliminating the exhaust opening around the outer shell of the main body.

According to the fourth and fifth aspects of the present invention,
In particular, even if the first air inlet provided on the back surface or the like is shielded for some reason, the second air inlet on the bottom surface is secured by the legs for supporting the main body, and all the air inlets are shielded. There is no immediate breakage or protection device working due to a rise in the temperature of the drive circuit in the device. In addition, even if water or foreign matter enters from the first intake port, it is discharged to the outside through the opening of the second intake port. It is possible to realize an induction heating cooker that can enhance the cooking performance.

[Brief description of the drawings]

FIG. 1 is a perspective view of an induction heating cooker when a cabinet is installed in a first embodiment of the present invention.

FIG. 2 is a schematic view of the flow of exhaust air in the roaster and the flow of cooling air in the main body.

FIG. 3 is a perspective view of an induction heating cooker when a cabinet is installed in Embodiment 2 of the present invention.

FIG. 4 is a schematic diagram showing the flow of exhaust air in the roaster chamber and the flow of cooling air in the main body.

FIG. 5 is a perspective view of an induction heating cooker when a cabinet is installed in a third embodiment of the present invention.

FIG. 6 is a schematic diagram of the flow of exhaust air in the roaster and cooling air in the main body.

FIG. 7 is a perspective view of a conventional induction heating cooker when a cabinet is installed.

FIG. 8 is a schematic diagram of a flow of cooling air in the main body.

[Explanation of symbols]

 1, 37, 66, 86, 106 ... cabinet 2, 21, 51, 71, 91 ... body 3, 36, 65, 85, 105 ... legs 4, 22, 52, 72, 92 ... top plate 5, 6, ... Induction heating coil 7, 8, 31, 61, 81, 101 Cooling fan 9, 10 Drive circuit board 11, 12, 34, 64 Inlet 13 Exhaust port 25, 55, 75, 95 Roaster section 26 56, 76, 96 ... heat shielding partition 27 ... opening (a) 28, 58, 78, 98 ... exhaust duct 32, 62, 82, 102 ... cooling fan motor 33, 63, 83, 103 ... intake fan case 33- a, 63-a, 83-a, 103-a ... discharge port 35 ... opening (b) 84-a, 104-a ... first intake port 84-b, 104-b ... second intake port 57 , 77, 97 ... opening (c)

Continued on the front page (72) Inventor Kazuichi Okada 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 3K051 AB10 CD42 CD43

Claims (5)

[Claims] 1. A top plate having a leg for supporting a main body on a bottom surface forming an outer shell of the main body, a top plate on which a cooked utensil is placed on a top surface, and a plurality of guides provided below the top plate. A heating coil, a roaster below the plurality of induction heating coils, a drive circuit for controlling energization in a space other than the space where the roaster is arranged, and a cooling fan for cooling the inside of the main body, wherein the roaster is located. An induction heating cooker in which a roaster exhaust port is provided at a rear portion of an outer periphery of a main body, and an exhaust direction in which hot air and smoke are exhausted from the roaster exhaust port and an intake direction for sucking outside air from an intake port for cooling the main body are not the same. 2. When the main body is installed, the wall has a structure in which a wall can be made close to the outer surface except for the top surface and the front surface of the main body, and the bottom surface of the main body has legs for supporting the main body. A top plate on which the appliance is placed, a plurality of induction heating coils provided below the top plate, and a roaster located below the plurality of induction heating coils and on either one of the left and right sides from the approximate center of the main body, A drive circuit for controlling energization, and a cooling fan for cooling the inside of the main body between the drive circuit and the rear surface of the main body outer shell are provided in a space on the opposite side where the roaster is disposed, and a main body outer shell on the side where the roaster is located. A roaster exhaust port is provided on the rear upper surface, and suction is performed from an intake port provided on a rear surface of the main body outer side opposite to an exhaust direction in which hot air and smoke are discharged from the roaster exhaust port and a side where the roaster is located. An induction heating cooker in which the intake direction is not the same. 3. The induction heating cooker according to claim 1, wherein an exhaust port for discharging cooling air for cooling the main body is discharged from the same opening of the roaster exhaust port at a rear portion of the outer shell of the main body where the roaster is located. 4. The induction heating cooker according to claim 1, wherein a second air inlet is provided on a bottom surface of the outer shell of the main body. 5. A structure in which a wall is accessible near the outer surface except for the top surface and the front surface of the main body when the main body is installed, a leg portion supporting the main body is provided on the bottom surface of the main body outer surface, and the top surface is heated and cooked. A top plate on which the appliance is placed, a plurality of induction heating coils provided below the top plate, and a roaster located below the plurality of induction heating coils and on either one of the left and right sides from the approximate center of the main body, A drive circuit for controlling energization, and a cooling fan for cooling the inside of the main body between the drive circuit and the rear surface of the main body outer shell are provided in a space on the opposite side where the roaster is disposed, and a main body outer shell on the side where the roaster is located. A roaster exhaust port and an exhaust port for discharging cooling air for cooling the main body are provided on the rear upper surface, and a first air intake port for cooling the main body is provided on the rear side of the main body outer side opposite to the side where the roaster is located. Draining An induction heating cooker provided with a second air inlet having a hole.