JPH05121155A - Electromagnetic induction-heated cooking appliance - Google Patents

Abstract

PURPOSE:To provide an electromagnetic induction-heated cooking appliance preventing the reduction of the cooling performance due to the heat discharged from a heated cooking appliance such as a microwave oven incorporated below. CONSTITUTION:An intake guide 18 is provided along the back face 2a and the bottom face 2b of a main body 2 incorporated with heating coils 1a, 1b, an intake port 19 at the upper section of the back face 2a is communicated to communicating ports 7a, 7b of the bottom face 2b, an exhaust port 20 communicated to the main body 2 is provided on the side of the intake port 19, thus the heat discharged from a microwave oven 17 incorporated below is prevented from mixing into the intake air, and the reduction of the cooling performance can be eliminated. The exhaust port 20 is provided in response to the outer periphery rear section 23 of the rear heating coil 1b. The heat discharged from a pot 13 heated by the rear heating coil 1b is dissipated by the exhaust air, its mixing into the intake air is prevented, and the reduction of the cooking performance can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling structure for interior parts of a built-in electromagnetic induction heating cooker.

[0002]

2. Description of the Related Art In recent years, an electromagnetic induction heating cooker has attracted attention as a cooker excellent in thermal efficiency and safety. And
Higher output has been desired to improve cooking performance. Particularly, in the case of using electromagnetic induction heating as a heating means of a heating cooker incorporated in kitchen furniture such as a system kitchen, there is a strong demand for higher output.

On the other hand, increasing the output increases the amount of heat generated by heat-generating components such as switching elements of a control circuit that drives electromagnetic induction heating. Therefore, it is necessary to further improve the cooling performance of the heat-generating components. Has become.

The cooling structure of the conventional electromagnetic induction heating cooker will be described below with reference to FIG.

In the figure, 1a and 1b are heating coils,
It is installed inside the box-shaped main body 2. Control circuits 3a and 3b are electrically connected to drive the heating coils 1a and 1b. 4a and 4b are heat sinks, and switching elements 5a and 5b are attached to the upper surfaces thereof. The switching elements 5a, 5b are the control circuit 3a,
It is electrically connected to 3b. Cooling fans 6a and 6b are provided near the communication ports 7a and 7b opened on the bottom surface of the main body 2. 8 is an outlet for cooling air, which is the main body 2
It is provided in the rear part of. A top frame 9 is attached to the opening of the main body 2, and a top plate 10 is fixed to the inner surface of the top frame. Reference numeral 11 denotes an intake / exhaust louver, which is provided on the upper surface of the rear portion of the main body 2. An operation unit 12 is electrically connected to the control circuits 3a and 3b, and is provided with a switch (not shown) for adjusting the heating amount. 1
3 is a pot, which is a top plate 10 above the heating coil 1b.
It is placed on top.

The electromagnetic induction heating cooker configured as described above is installed by being dropped into the top plate 14 of the kitchen furniture.
Reference numeral 15 is a front plate of kitchen furniture, and 16 is a partition plate. Reference numeral 17 denotes a heating cooker such as an oven, which is located below the electromagnetic induction heating cooker and is incorporated in the kitchen furniture.

In the above structure, the pot 13 is placed on the top plate 10 and the switch of the operating portion 12 is operated to operate the control circuit 3b to drive the heating coil 1b to heat the pot 13. .. In this operation, since it is necessary to suppress the temperature rise of the heat generating components such as the switching element 5b, the cooling fan 6b blows air to these components for air cooling. The path of the cooling air sucks air from the opening of the intake / exhaust louver 11 as shown by the arrow a, and cools the heat-generating components such as the switching elements 5a, 5b by the cooling fans 6a, 6b as shown by the arrows b, c. Then, as shown by an arrow d, the exhaust port 8 is formed so as to exhaust from the opening of the intake / exhaust louver 11.

[0008]

In such a conventional electromagnetic induction heating cooker, when a heating cooker such as an oven 17 is installed below the main body 2, the front plate 15 and the partition plate 16 form the main body. If the 2 and the oven 17 are not thermally separated, the hot air discharged from the oven 17 rises as shown by the arrows e and f and mixes with the intake air of the cooling fans 6a and 6b to raise the temperature of the intake air. There was a problem that the cooling performance was lowered. Further, as shown in FIG. 3, even if the oven 17 of the main body 2 is thermally separated by the front plate 15 and the partition plate 16, a part of the hot air released from the heated pan 13 is indicated by an arrow g. As shown, there is also a problem that the intake air is mixed into the intake air that is taken in through the opening of the louver 11 to raise the temperature of the intake air and reduce the cooling performance.

The present invention solves the above problems, and provides an electromagnetic induction heating cooker capable of eliminating a decrease in cooling performance due to hot air discharged from a heating cooker such as an oven installed below. Is the first purpose.

A second object of the present invention is to provide an electromagnetic induction heating cooker capable of eliminating a decrease in cooling performance due to hot air released from a heated pan.

[0011]

In order to achieve the above object, the present invention provides a first means, a box-shaped main body, one or more heating coils installed in the main body, and the heating coil. A control circuit for driving the control circuit, a cooling fan for air-cooling the control circuit, an intake port for exhausting and exhausting cooling air, and an exhaust port. An intake guide communicating with a bottom surface communication port is provided along the rear surface of the main body from the rear surface to form a double bottom on the whole or a part of the bottom surface of the main body, and on the other hand, the intake air above the rear surface of the main body. An exhaust port of an exhaust path communicating with the main body is arranged on the side of the mouth.

A second means is a box-shaped main body, one or more heating coils installed in the main body, a control circuit for driving the heating coil, and a cooling fan for cooling the control circuit with air. An arrangement is provided in which an intake port and an exhaust port for intake and exhaust of cooling air are provided, and the exhaust port is arranged on the rear surface of the main body corresponding to the outer peripheral rear part of the rear heating coil installed in the main body. is there.

[0013]

According to the first aspect of the present invention, since the intake port provided on the upper portion of the rear surface of the main body and the communication opening on the bottom surface of the main body are connected by the intake guide provided along the rear surface to the bottom surface of the main body, Even if a heating cooker such as an oven is installed below the main body, the hot air discharged from the oven does not mix with the intake air, and the temperature of the intake air can be prevented from rising. Further, since the bottom surface of the main body has a double bottom due to the intake guide, it is possible to shield the hot air from the heating cooker such as an oven.

In the second means, the exhaust port is provided on the rear surface of the main body corresponding to the outer peripheral rear portion of the rear heating coil incorporated in the main body, so that it is discharged from the pot heated by the rearmost heating coil. Hot air is dissipated by the exhaust,
The temperature of the intake air can be prevented from rising without being mixed with the intake air from the intake port.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

The same parts as those shown in the conventional example are designated by the same reference numerals, and the description thereof will be omitted. As shown in the figure, the main body 2 is provided with an intake guide 18 along a rear surface 2a and a bottom surface 2b, and the main body 2 is formed into a double bottom by the bottom surface 18a of the intake guide 18 and the bottom surface 2b of the main body 2. And serves as a cooling air flow path. The intake guide 18 is provided on the whole or a part of the bottom surface of the main body 2. An intake port 19 is opened at an upper portion of the rear surface 2a of the main body 2 at one end of the intake guide 18, and communication ports 7a, 7b of the main body 2 are provided at the other end.
It leads to.

An exhaust port 20 is provided above the rear surface 2a of the main body 2 to the side of the intake port 19 (between the intake ports 19.19 in this embodiment), and the exhaust port 20 is provided through an exhaust passage 21. The communication port 22 opens to the rear surface 2 a of the main body 2.

As shown in FIG. 2, the exhaust port 20 is arranged on the rear surface 2a of the main body 2 so as to correspond to the outer peripheral rear portion 23 of the rear heating coil 1b among the heating coils 1a and 1b incorporated in the main body 2. It is set up. That is, the rear surface 2a of the main body 2
It is arranged at a position corresponding to the heating coils 1a and 1b located close to.

In the above structure, the pan 13 is placed on the top plate 10 and the switches of the operating portion 12 are operated to operate the control circuits 3a and 3b to activate the heating coils 1a and 1b, thereby 13 is heated. In this operation, since it is necessary to suppress the temperature rise of the heat-generating components such as the switching elements 5a and 5b, the cooling fan 6a,
At 6, the parts are blown for air cooling. The path of the cooling air sucks air from the intake port 19 through the opening of the intake / exhaust louver 11 as shown by the arrow h, and the intake guide 18 is made to have a diameter as shown by the arrows i, j by the cooling fans 6a, 6b. It is formed so that the heat-generating components such as the switching elements 5a and 5b are cooled and discharged from the exhaust port 21 through the opening of the intake / exhaust louver 11 as indicated by arrow k.

Thus, according to the first means of the present invention,
An air intake guide 18 is provided along the rear surface 2a and the bottom surface 2b of the main body 2 to form a flow path of cooling air, and an intake port 19 that opens to the upper part of the rear surface 2a of the main body 2 and a communication port 7 between the bottom surface 2b of the main body 2
By communicating with a and 7b, even if a heating cooker such as the oven 17 is installed below the main body, the hot air released from the oven 17 does not mix into the intake air, so that the temperature of the intake air does not rise. This is effective in preventing the deterioration of the cooling performance.

According to the second means, the exhaust port 20 is provided on the rear surface 2a of the main body 2 so as to correspond to the outer peripheral rear portion 23 of the rear heating coil 1b incorporated in the main body 2,
The hot air released from the pan 13 heated by the rear heating coil 16 is released into the atmosphere by the exhaust air from the exhaust port 20, so that the hot air is not mixed with the intake air from the intake port 19, There is an effect that a temperature rise can be prevented and a decrease in cooling performance can be eliminated.

[0022]

As is apparent from the inventions of the above embodiments, according to the first invention, it is possible to eliminate the deterioration of the cooling performance due to the hot air discharged from the heating cooker such as an oven installed below. It is possible to provide an electromagnetic induction heating cooker capable of performing the above.

Further, according to the second invention, it is possible to provide an electromagnetic induction heating cooker capable of eliminating the deterioration of the cooling performance due to the hot air discharged from the heated pan.

[Brief description of drawings]

FIG. 1 is a side sectional view of an electromagnetic induction heating cooker according to the present invention taken along line II-II in FIG.

FIG. 2 is a perspective view of the electromagnetic induction heating cooker as seen from the rear side.

FIG. 3 is a side sectional view of a conventional electromagnetic induction heating cooker.

[Explanation of symbols]

 1a, 1b Heating coil 2 Main body 2a Rear surface 2b Bottom surface 3a, 3b Control circuit 6a, 6b Cooling fan 7a, 7b Communication port 18 Intake guide 19 Intake port 20 Exhaust port 23 Outer rear part of heating coil 23

Claims (2)

[Claims] 1. A box-shaped main body, and an internal body 1 provided in the main body.
Alternatively, one or more heating coils, a control circuit that drives the heating coil, and an air cooling fan that cools the control circuit by air.
An intake port for intake and exhaust of cooling air and an exhaust port are provided, and the intake port is opened at an upper part of the rear surface of the main body, and an intake guide communicating with a communication port on the bottom surface of the main body is provided from the rear surface to the bottom surface of the main body. The bottom surface of the main body is formed to have a double bottom, or the bottom surface of the main body is formed with a double bottom. An electromagnetic induction heating cooker that is installed. 2. A box-shaped main body, and an internal unit 1 provided in the main body.
Alternatively, one or more heating coils, a control circuit that drives the heating coil, and a cooling fan that cools the control circuit by air.
Electromagnetic induction heating provided with an intake port and an exhaust port for inhaling and exhausting cooling air, and the exhaust port being disposed on the rear surface of the main body corresponding to the outer peripheral rear portion of the rear heating coil installed in the main body Cooking device.