JP3787413B2 - Cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an induction heating type heating cooker called an electromagnetic cooker used for business purposes in kitchens of hotels, restaurants, restaurants and the like.
[0002]
[Prior art]
Induction heaters with an output of over 1 kW used in general households have a small capacity, so there is little internal heat generation, and long-term continuous use is also small. Moreover, since the installation state is also placed on a table or table, there is no problem even if the exhaust outlet is provided on the side surface or the lower part of the fuselage.
[0003]
However, what is used for business use has a large output of 2 to 5 kW or more. In addition, there are many continuous uses for a long time, and the internal heat generation becomes higher than that of a small machine for general household use. Further, a plurality of devices are often installed side by side in a narrow place, and environmental conditions are often high both in temperature and humidity. Therefore, the airflow path of the airframe is required to have low ventilation resistance in order to improve the cooling efficiency. Accordingly, the cooling air that has cooled the object to be cooled such as the heating coil and the switching element is desired to be quickly discharged from the exhaust port provided in the machine body. Therefore, the exhaust passage is simple and the ventilation resistance is made as small as possible.
[0004]
Since an electromagnetic cooker uses a lot of water such as boiled food and boiled food, water may be spilled on the top plate of the electromagnetic cooker during cooking. Also, water is used when cleaning a dirty electromagnetic cooker during cooking. In such a case, water may be dripped from the upper part of the exhaust port.
[0005]
As for the exhaust passage form of the electromagnetic cooker used for business, a slit is provided in the vertical wall surface on the back of the machine body, and the exhaust is discharged from the machine body. In this configuration, it is impossible to install the aircraft by pressing the exhaust port against the wall of the kitchen. Therefore, a tenban that protrudes to the rear is usually provided and a slit is provided behind the tenban. As a result, the cooling air discharged from the exhaust port provided on the rear surface of the aircraft is exhausted to the outside through the slit at the rear of the tenbang, even if the aircraft is installed in a state where it is in contact with the wall surface or another aircraft. . By forming an exhaust port on the Tenban surface, there is no protrusion of the exhaust tube and it is easy to use even if multiple aircraft are installed in the I-land type.
[0006]
Since the structure corresponds to various installation conditions as described above, an exhaust port is provided in the tenban. Therefore, if water is spilled on the tempan, it may enter the aircraft body and adhere to the charging parts of electrical components and wiring, causing electric leakage and short circuit accidents.
[0007]
[Problems to be solved by the invention]
As described above, the use conditions of commercial kitchen equipment are very severe compared to general household equipment. In order to provide products that can be used without any practical problems even under harsh usage conditions, the ventilation resistance of the exhaust passage is kept at the same level as conventional products without increasing, and electrical components and The structure is such that water does not adhere to the charging part and damage the electronic circuit or the like.
[0008]
As a measure for preventing water intrusion from the exhaust port into the airframe, it is an effective means to connect an exhaust pipe in which the opening of the exhaust port is provided above the surface to be heated. Has already been commercialized, and if an exhaust pipe is connected to the rear part of the fuselage, it will cause problems such as hitting a large heated object (pan). Further, when a plurality of devices are used side by side, there is a problem that it is difficult to work if there is an exhaust pipe when the rear parts are combined to be used in a face-to-face manner (I-land type installation).
[0009]
[Means for Solving the Problems]
The present invention, in order to solve the above problems, the heating coil and a high frequency current to generate an eddy current in the object to be heated causes heat the object to be heated itself, cooling air forcibly cooling the interior electrical components In a heating cooker having an exhaust passage, a ceramic plate provided on the upper surface of the machine body on which a heated object is placed is installed and a tenban projecting behind the machine body is provided on the same surface as the heated object installation surface behind the tenban. Cooling an exhaust slit, an upper exhaust port provided on the vertical wall on the back side of the machine for exhausting the cooling air that has cooled the heating coil, and a control circuit provided on the lower side of the vertical wall on the back side of the machine for controlling the heating cooker. A lower exhaust port that exhausts the cooled cooling air, an eaves-shaped waterproof plate that covers from above the upper exhaust port, and the cooling air that covers the lower exhaust port and is discharged from the lower exhaust port on the left and right ends A waterproof cover-shaped cross section co discharged from those having a.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In the cooling air exhaust passage according to the present invention, the final outlet (exhaust port) is provided on a tenvan that is the same surface as the surface to be heated of the airframe, but the upper portion provided on the vertical back wall of the airframe on the lower side of the tenvan. By providing a waterproof plate and a waterproof cover at the exhaust port (mainly the cooling air outlet of the heating coil) and the lower exhaust port (cooling air outlet of the electronic components), respectively, and ensuring sufficient cooling air exhaust passage area, the cooling performance is It is an object of the present invention to provide an induction heating cooker having a structure in which water entering the inside of the machine body from the outside does not reach the electrical component and the charging part of the wiring without being lowered.
[0011]
With the above-described configuration, the exhaust port can be used on a heated body having a large diameter while maintaining the same surface as the heated body installation surface without any trouble, and the ventilation resistance of the exhaust passage increases. Therefore, the structure is maintained at the same level as that of the conventional product, water does not enter from the exhaust port, and the built-in electric parts are not damaged.
[0012]
【Example】
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic structure of a heating cooker according to the present invention and is a cross-sectional view from the side direction. FIG. 2 is a rear perspective view showing details of the exhaust port portion.
[0013]
In the figure, reference numeral 1 denotes a metal container (for example, a pan or the like) of a heated object heated by an induction heater. Reference numeral 2 denotes a heating coil that generates a magnetic line of force by flowing a high-frequency current. Reference numeral 3 denotes a crystallized glass ceramic plate placed between the heating coil 2 and the heated object 1, and water, oil, cooking ingredients, garbage, etc. enter the electrical components such as the heating coil 2. This prevents the magnetic field lines from passing through.
[0014]
A metal container 1 as a heated object is placed on the ceramic plate 3. 3 'is a tenban incorporating the ceramic plate 3. Reference numeral 4 denotes a control circuit, and reference numeral 5 denotes a control panel portion provided with an operation switch 6, a thermal power adjustment switch 7, and the like.
[0015]
Reference numeral 8 denotes a cooling fan for cooling the heating coil 2 and the electrical components in the control circuit 4. Cooling air passes from the outside through the filter 9 on the lower side of the front of the fuselage and is sent out by the cooling fan 8. One part of the air passes through the duct 10 covering the control circuit 4 part and cools the electrical components of the control circuit 4 part. . The cooling air is discharged from a lower exhaust port 11 provided on a vertical wall on the back of the machine body, and a waterproof cover 12 is installed in this portion. The waterproof cover 12 largely covers the lower exhaust port 11 to prevent the water from splashing or entering from the outside even if it enters from here.
[0016]
The waterproof cover 12 is a cover having a U-shaped cross section as shown in FIG. 2, and covers the lower exhaust port 11 on the back of the machine body, so that the cooling air discharged from the lower lower exhaust port 11 is divided in the left-right direction. Then, the water is discharged from the exhaust port 14 at the end 13 of the waterproof cover 12. The purpose of the waterproof cover 12 is to prevent splashing water around the aircraft and water dripping from the exhaust slit 15 of the aircraft's tenvan 3 'from entering the aircraft and damaging electrical components such as the control circuit 4. The lower exhaust port 11 on the back is largely covered. In order to provide a product that can be used without any practical problems even under severe conditions of use, the cross-sectional area of the exhaust passage covered and formed with a waterproof cover is made larger than the opening area of the lower rear exhaust port, thereby reducing the ventilation resistance. The structure is maintained at the same level as the conventional product without increasing and does not damage the built-in electrical components due to water intrusion from the exhaust port.
[0017]
On the other hand, the cooling air to the heating coil 2 is discharged from the upper exhaust port 16 on the back surface. The upper exhaust port 16 is covered with a large eaves-like waterproof plate 17 from above. Water that enters the body is prevented by the waterproof plate 17. The discharged heating coil cooling air passes through the lower side of the waterproof plate 17 and is exhausted.
[0018]
When there is no obstacle around the airframe, the cooling air discharged from the upper exhaust port 16 and the lower exhaust port 11 is discharged as it is to the outside of the airframe. If there is an obstacle around the aircraft and it cannot be discharged to the outside even if it is discharged from the upper and lower exhaust ports 16, 11, the air is exhausted upward from the exhaust slit 15 behind the tenvan 3 ′.
[0019]
Next, the operation of this embodiment having the above configuration will be described.
[0020]
Water, oil, etc. spilled on the tenban 3 'during cooking dripped into the airframe from the exhaust slit 15 of the tenban 3', but the upper exhaust port 16 is covered with a waterproof plate 17, and the lower exhaust port 11 Since it is covered with the waterproof cover 12, dripping water or oil does not enter the aircraft.
[0021]
Further, even if water that has fallen on the floor surface jumps, the lower exhaust port 11 is largely covered with the waterproof cover 12, so that it does not jump in. Since the upper exhaust port 16 is high in position, the one that jumps so far will not come. Even if it pops up, it is blocked by the waterproof cover 12 and no water droplets reach the upper exhaust port 16.
[0022]
The installation location of the aircraft may also be a sink on the back side as shown in Fig. 3. In this case, water may be dripped onto the aircraft when taking in and out of the sink. In the conventional type that does not exist, water dripped from the exhaust slit 15 of the tenban 3 'enters the exhaust port, adheres to the kiban of the control unit 4, and damages the airframe, but the present invention eliminates such troubles. It can be done.
[0023]
【The invention's effect】
According to the present invention, a waterproof plate and a waterproof cover are provided at a portion serving as an exhaust outlet that cools an electrical component of the cooled object, and the exhaust passage and the aircraft are A structure that prevents water dripped from the exhaust slits of the temban from entering the machine body and damaging the electrical components such as the control circuit, so that water or oil that enters from the outside does not reach the electrical components. This eliminates problems caused by water and oil intrusion.
[0025]
Moreover, there is no trouble such as hitting a large heated body (pan) without connecting an exhaust pipe to the rear part of the machine body. Further, when a plurality of devices are used side by side, there is no problem even if the rear portions are combined and used in a face-to-face manner. In addition, it can be installed near a sink that uses a lot of water and can be used without any problem even if there is water splashing from here.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention and is a schematic structure of a heating cooker and is a side sectional view.
FIG. 2 is a perspective view showing details of the waterproof cover, as seen from the back side of the airframe.
FIG. 3 is an installation example diagram of the aircraft.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Metal container 2 Heating coil 3 Ceramic plate 4 Control circuit 8 Cooling fan 11 Lower exhaust port 12 Waterproof cover 15 Exhaust slit 16 Upper exhaust port 17 Waterproof plate

Claims (1)

Together with a high frequency current to generate an eddy current in the object to be heated to heat the object to be heated itself to the heating coil, the heating cooker having a cooling air exhaust passage for forcibly cooling the interior electrical components provided on the body top surface A tenvan that incorporates a ceramic plate on which the object to be heated is mounted and that projects to the rear of the aircraft, an exhaust slit provided on the surface equivalent to the object to be heated behind the tenban, and a vertical wall provided on the rear surface of the aircraft An upper exhaust port for exhausting the cooling air that has cooled the heating coil, a lower exhaust port for exhausting the cooling air that is provided in the lower portion of the vertical wall on the back of the machine body and that controls the heating cooker, and the upper exhaust port An eaves-shaped waterproof plate covering from the upper part of the mouth, and a U-shaped waterproof cover that covers the lower exhaust port and discharges the cooling air discharged from the lower exhaust port from the left and right ends. Heating cooker equipped with.

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