JP6758336B2 - Cooker - Google Patents

Description

The present invention relates to a cooker.

Conventionally, a cooker having the functions of a microwave oven and a microwave oven has been installed with spaces on the side and back sides. Therefore, even if the temperature of the heating chamber rises to heat the object to be heated in the machine, the temperature of the air that cools the control board, the inverter board, and the weight sensor does not rise to the extent that it becomes a problem.

There is a cooking cooker described in Patent Document 1 as one in which the side surface and the back surface of the cooking cooker are installed close to the wall in order to save space in the installation place. In the present invention, an intake hole is provided in the bottom plate of the cooking cooker so that the cooking cooker can be installed by sucking air from the bottom plate without providing a large space on the side and the back side.

Japanese Unexamined Patent Publication No. 2015-203528

However, in the structure shown in Patent Document 1, one fan device must cool the entire machine room, which increases the size of the fan device. Further, since cooling is performed by one fan device, the cooling strength cannot be changed for each part.

The present invention has been made to solve the above-mentioned problems, and is provided on a heating chamber 28 for putting and heating an object to be cooked, a heating means for heating the object to be cooked, and a bottom surface of the heating chamber 28. A heating cooker having a machine chamber 20 provided, left and right fan devices 502a and 502c provided at both ends thereof, and a central fan device 502b provided on the back surface of the heating chamber 20, in the left and right fan devices 502a502c. The skirt members 500 and 501 are provided around the left and right intake holes 21 for taking in air, respectively, and an air flow path to the central fan device 502b is formed between the skirt members 500 and 501, respectively.

The present invention can realize a space-saving cooking cooker that can be installed without providing a large space on the side surface and the back surface side. By using a small cooling fan, the machine room can be kept to the minimum height, and a compact and highly installable cooker can be realized. Further, by having a plurality of cooling fans, each fan can be controlled separately, so that a high cooling effect can be realized.

It is a perspective view which looked at the main body of the cooking apparatus of this invention from the front side. FIG. 1 is a sectional view taken along the line AA of FIG. It is a perspective view which looked at the state which removed the outer frame from the main body of the cooking apparatus of this invention, and looked at from the front side. It is a perspective view seen from the rear side with the outer frame removed from the main body of the cooker. It is a perspective view which looked at the bottom surface of the cooker from the left front. It is a perspective view from the left front on the bottom side of the main body in a state where the outer frame and the bottom plate are removed from the main body of the cooking cooker. It is an exploded view of the substrate holding member and a cooling device of the same cooking apparatus. It is an exploded view of the cooling device of the heating cooker. It is an exploded view of the main body with the outer frame of the cooker removed, and the bottom plate and the parts attached to the bottom plate. It is a block diagram which showed the control means of the cooking apparatus of this invention.

The specific contents of the present invention will be described in detail below with reference to the drawings of FIGS. 1 to 10 described above.

In FIGS. 1 to 4, the main body 1 of the cooking cooker puts the food to be cooked in a heating chamber 28 having walls at the top, bottom, left, right, and the back, and is covered with heat of microwaves, a heater, and steam. Cook the cooked food.

The door 2 opens and closes to move the food to be taken in and out of the heating chamber 28. By closing the door 2, the heating chamber 28 is sealed and microwaves used to heat the food to be cooked leak. Prevents heat, traps heat, and enables efficient heating.

The handle 9 is attached to the door 2 to facilitate opening and closing of the door 2, and has a shape that is easy to hold by hand.

The glass window 3 is attached to the door 2 so that the state of food being cooked can be confirmed, and glass that can withstand high temperatures due to heat generated by a heater or the like is used.

The input means 71 is provided on the operation panel 4 on the lower front side of the door 2, and is provided on the outside of the range heating means 77 (FIG. 10) for heating the object to be cooked by microwaves and the upper surface 28e of the heating chamber 28. Generated by a grill heating means 12 that heats an object to be cooked with a heater, a steam generating means 43 that heats an object to be cooked by steam, and a hot air unit 11 provided with hot air heaters 14a and 14b above and below the back wall surface 28b of the heating chamber. The operation unit 6 for selecting a heating means such as an oven heating means for heating the heating chamber 28 with hot air and inputting cooking conditions such as heating time and an automatic menu, and the contents and cooking input from the operation unit 6 It is composed of a display unit 5 that displays the progress status of.

The water tank 42 is a container for storing water necessary for producing water vapor, and is provided on the lower side of the front surface of the main body 1 and has a structure that can be attached to and detached from the water tank holding member 53 on the front surface of the main body 1. Water supply and drainage are easy.

The outer frame 7 is a cabinet that covers the upper surface and the left and right side surfaces of the main body 1 of the cooking cooker.

The rear plate 10 (FIG. 2) forms the rear surface of the cabinet described above, and the external exhaust duct 18 (FIG. 1) is attached to the upper portion, and the inside of the external exhaust duct 18 to which the external exhaust duct 18 is attached is formed from the object to be cooked. An exhaust hole 37 is provided to discharge the discharged steam and the cooling air (waste heat) after cooling the internal parts of the main body 1 (FIG. 3).

Further, the external exhaust duct 18 discharges the wind that has passed through the exhaust hole 37 to the outside of the main body 1, and the exhaust is discharged from the external exhaust port 8 (FIG. 1) of the external exhaust duct 18, and the exhaust direction is Exhaust air toward the upper part of the main body 1 and toward the front side. By directing the exhaust direction toward the upper side and toward the front side, the wall surface is not polluted by the exhaust even when the back surface is brought close to the wall surface.

The machine room 20 (FIG. 2) is provided in a space between the bottom surface 28a of the heating chamber and the bottom plate 21 of the main body 1, and on the bottom plate 21, a magnetron 33 (FIGS. 4 and 5) and a magnetron for heating food are provided. A waveguide 47 (FIG. 2) to which the 33 is connected, a control board 23 (FIG. 3), various other parts described later, and a cooling means 50 (FIG. 4) for cooling these various parts are attached.

The left side surface 28c of the heating chamber 28 and the right side surface 28d of the heating chamber 28d (FIG. 3) are provided with a shelf 27 composed of an upper shelf 27a, a middle shelf 27b, and a lower shelf 27c, and various heating dishes used for cooking are placed on the shelf 27.

The bottom surface 28a of the heating chamber has a substantially concave central portion, and a rotating antenna 26 is installed therein. Microwaves radiated from the magnetron 33 are emitted from the waveguide 47 and the output shaft 46a of the rotating antenna driving means 46. It flows into the lower surface of the rotating antenna 26 through the coupling hole 47a through which the antenna 26 penetrates, is diffused by the rotating antenna 26, and is radiated into the heating chamber 28 (FIG. 2).

The rotating antenna 26 (FIG. 2) is connected to the output shaft 46a of the rotating antenna driving means 46. The rotating antenna driving means 46 includes an antenna position detecting means (not shown) for detecting the position of the rotating antenna 26.

A hot air unit 11 is attached to the rear part of the heating chamber 28, and the hot air unit 11 is provided with a hot air case 11a on the outer rear side of the heating chamber back wall surface 28b, and a hot air fan is provided between the heating chamber back wall surface 28b and the hot air case 11a. Hot air heaters 14a and 14b are provided so as to be located on the outer peripheral side of 32, a hot air motor 13 is attached to the rear side of the hot air case 11a, and the motor shaft is connected to the hot air fan 32 through a hole provided in the hot air case 11a. ing.

The hot air unit 11 is connected to the hot air intake hole 31 provided on the back wall surface 28b of the heating chamber through the hot air outlet hole 30, and the hot air fan 32 in the hot air case 11a is rotated by the hot air motor 13 to rotate the hot air fan 32 in the heating chamber. The air between the 28 and the hot air unit 11 is circulated, and the air circulated by the hot air heaters 14a and 14b is heated.

Further, instead of the hot air unit 11, heaters may be provided on the upper surface and the lower surface of the heating chamber 28 to heat the heating chamber 28.

A grill heating means 12 including a heater is attached to the outside of the upper surface 28e of the heating chamber. The grill heating means 12 winds a heater wire around a mica plate to form a flat surface, presses it against the outside of the upper surface 28e of the heating chamber to fix it, heats the upper surface 28e of the heating chamber, and radiates heat to the food to be cooked in the heating chamber 28. It is baked by.

Further, a plurality of weight detecting means 25, for example, a right side weight sensor 25a, a left side weight sensor 25b, and a back side weight sensor 25c in the center of the rear side are provided on the bottom surface 28a of the heating chamber, and a table plate 24 is provided on the right side weight sensor 25a and the left side weight sensor 25b. Is placed (Fig. 3).

The table plate 24 is for placing food, has heat resistance so that it can be used for both heater heating and microwave heating, has good microwave transmission, and has no problem in terms of hygiene. It is molded from a material such as porcelain.

Above the rear part of the heating chamber 28, a temperature detecting means a85 for detecting the temperature inside the heating chamber 28 is provided. The temperature detecting means a85 (FIG. 4) is provided at a position that is not directly affected by the hot air blown into the heating chamber 28 from the hot air blowing holes 30 (FIG. 3) of the grill heating means 12 and the hot air unit 11.

Further, above the rear portion of the heating chamber 28, an infrared sensor unit E that detects the temperature of the object to be heated by infrared rays is provided (FIGS. 2 and 4).

The steam unit 43a (FIG. 10) is composed of a steam generating means 43 and a pump means 87.

The steam generating means 43 is attached to the outer surface of the left side surface 28c of the heating chamber, and the steam ejection port 44 for ejecting steam faces the inside of the heating chamber 28.

Further, the steam generating means 43 (FIG. 4) is made by casting aluminum, and a sheathed heater, which is a boiler heating means 89, is embedded so as to be integrated at the time of casting. The power consumption of the heater is as large as about 600 W, and the steam generating means 43 can heat water to a temperature at which it can be boiled in a short time.

The water supply to the steam generating means 43 is supplied from the water tank 42 to the pump means 87 through the pipe 45 by driving the pump means 87 (FIG. 4), and is supplied to the steam generating means 43 through the pipe 40. It is heated by the steam generating means 43 (FIGS. 2 and 4) and boiled to become steam, which is ejected from the steam outlet 44 (FIG. 2) to the heating chamber 28.

The temperature detecting means b88 (FIG. 4) detects the temperature of the steam generating means 43, transmits the detection result to the control means 151 (FIG. 10) described later, and controls the boiler heating means 89 and the pump means 87.

The pump means 87 (FIGS. 4 and 8) pumps water from the water tank 42 to the steam generating means 43 (FIG. 4), and is composed of a pump and a motor for driving the pump. The adjustment of the amount of water supplied to the steam generating means 43 is determined by the ON / OFF ratio of the electric power supplied to the motor.

The cooling means 50 is a fan device in which a fan is connected to a cooling motor provided in the machine room 20, and as shown in FIG. 4, right fan devices are arranged on the right, center, and left rear of the main body 1, respectively. It is composed of 15a, a central fan device 15b, and a left fan device 15c. The cooling means 50 takes in air from below the main body 1 and blows it into the main body as cooling air.

A heat shield plate 16 is provided on both outer side surfaces of the heating chamber 28, and an air layer of about 10 mm is provided between the side surface of the heating chamber 28 and the heat shield plate 16 on the side surface of the heating chamber 28. Flange portions are provided on each side portion or the four side portions of the heat shield plate 16. The air layer suppresses heat dissipation from the heating chamber 28 during cooking, and the heat shield plate 16 prevents the cooling air from directly hitting the side surface of the heating chamber 39 to cool it.

FIG. 10 is a block diagram showing a control means of the present cooking cooker. Next, the operation of the cooking device system will be described with reference to FIG. The power source 76 is for operating the main body 1 of the cooking cooker.

The hot air unit 11 is a hot air motor behind the hot air case 11a (FIG. 4) provided on the outside of the back wall surface 28b (FIG. 3) of the heating chamber provided with the hot air intake hole 31 (FIG. 3) and the hot air outlet hole 30 (FIG. 3). A hot air fan 32 (FIG. 3) is provided on the motor shaft thereof through a hole of the hot air case 11a, and hot air heaters 14a (FIG. 4) and 14b (FIG. 4) are provided on the outer peripheral side of the hot air fan 32. Hot air is circulated and supplied to 28 (FIG. 3).

The microwave oven heating means 77 is composed of a magnetron 33 (FIG. 4) and an inverter board 22 (FIGS. 2 and 7) on which an inverter circuit for producing a power source for driving the magnetron 33 is mounted. The inverter circuit creates a power source corresponding to the heating power input from the input means 71 and supplies it to the magnetron 33.

The grill heating means 12 includes a heater provided on the back side of the top surface of the heating chamber 28, heats the upper surface 28e (FIG. 2) of the heating chamber 28 of the heating chamber 28, and burns the food to be cooked in the heating chamber 28 by radiant heat. It is a thing.

The rotating antenna driving means 46 is a motor for driving the rotating antenna 26 (FIG. 3).

The weight detecting means 25 measures the weight of the object to be cooked placed on the table plate 24 (FIG. 3).

The temperature detecting means a85 is attached to the heating chamber 28, detects the temperature in the heating chamber 28, and adjusts the electric power of the heater of the grill heating means 12 by the control means 151.

The infrared sensor unit E detects infrared rays of the object to be cooked and sends temperature information to the control means 151.

The steam unit 43a includes a steam generating means 43 and a pump means 87.

The steam generating means 43 is composed of a boiler heating means 89 including a heater for heating water and a temperature detecting means b88 for detecting the temperature of the steam generating means 43, and the control means 151 is a boiler based on the detection result of the temperature detecting means b88. The heating means 89 and the pump means 87 are controlled.

Reference numeral 71 denotes an input means, and here, the operation unit 6 and the display unit 5 are shown in the present specification (FIG. 1).

Reference numeral 151 denotes a control means, which is mounted on a control board 23 (FIG. 3) and operates so as to cook food according to the contents input from the input means 71. From each detection means, the state of the food and the heating chamber The state of the above is detected, and then each heating means and driving means are operated as needed.

The LED lighting unit 36400 is controlled by the control means 151 and emits light during cooking to brightly illuminate the inside of the heating chamber 28.

The details of the right side fan device 502a, the central fan device 502b, and the left side fan device 502c provided in the machine room 20 will be described with reference to FIGS. 5 to 8.

The right side fan device 502a includes a cooling fan right 503a and a cooling fan holding member right 504, and has an inverter board 22 inside (FIG. 7). Cooling air is generated by rotating the cooling fan right 503a, and outside air is taken in from the intake hole right 21a (FIG. 5) to cool the inverter board 22.

The cooling fan right 503a is arranged on the front side of the main body of the heating cooker with respect to the intake hole right 21a, and the rotation axis of the fan is arranged so as to be substantially horizontal to the bottom surface. With such a configuration, the cooling air taken in from the intake hole right 21a is discharged toward the front surface of the main body through the fan, and after cooling the inverter board 22, the weight detecting means 25, the control board 23, etc. (FIG. 6) can be cooled.

The central fan device 502b (FIG. 6) is composed of a cooling fan center 503b and a rear duct 506. Cooling air is generated by rotating the center 503b of the cooling fan to cool the hot air motor 13 (FIG. 4) and the infrared sensor unit E (FIG. 4).

The left fan device 502c comprises a cooling fan left 503c and a cooling fan holding member left 505 (FIG. 8), and is installed near the magnetron 33 (FIG. 6). Cooling air is generated by rotating the cooling fan left 503c, and outside air is taken in from the intake hole right 21b (FIG. 5) to cool the magnetron 33, the weight detecting means 25, and the like (FIG. 6).

The cooling fan left 503c is arranged on the front side of the main body of the cooking cooker with respect to the intake hole left 21b, and the rotation axis of the fan is arranged so as to be substantially horizontal to the bottom surface. With such a configuration, the cooling air taken in from the left side 21b of the intake hole is discharged toward the front surface of the main body through the fan.

In this embodiment, the cooling fan holding member 505 is provided with a notch, and the cooling air passing through the cooling fan left 503c is sent to the outside of the heat shield plate 503 where the lighting unit 36 (FIG. 6) and the like are provided. It branches to the magnetron 33 side and cools both structures at the same time. Further, a pump means 87 (FIG. 8) is installed on the left 505 of the cooling fan holding member.

In this embodiment, the right side fan device 502a and the left side fan device 503b cool the inverter board 22 and the magnetron 33, respectively, but they may be arranged in either one.

The cooling fan holding member right 504 (FIG. 7) and the cooling fan holding member left 505 (FIG. 8) have a duct shape, and not only can efficiently take in air from the intake hole right 21a and the intake hole left 21b, respectively, but also cool. Later Opportunity It prevents the air in the room from circulating again, and has a shape that can always take in only the outside air.

Further, the opening areas of the intake hole right 21a and the intake hole left 21b of this embodiment are set to the minimum areas where the intake air volume is saturated in this structure.

The details of the left and right intake holes, the skirt member right 500, and the skirt member left 501 provided on the bottom plate 21 will be described with reference to FIGS. 5 to 9.

The intake hole right 21a is provided below the intake duct portion 504a of the cooling fan holding member right 504, takes in outside air from under the water tank holding member 53 (FIG. 5), passes through the bottom surface of the bottom plate 21, and passes through the bottom surface of the bottom plate 21 to the cooling fan right. It forms an air passage through 503a.

The skirt member right 500 has a U-shape, and the side surface side of the main body has a longer shape than the central fan device side. The length on the side surface side of the main body is not particularly limited as long as it has a structure that prevents hot air from wrapping around from the side surface of the main body and prevents hot air from entering the machine room from the right side 21a of the intake hole. By shortening the length of the central fan device side compared to the side surface side of the main body, the air from the front side of the main body 1 is promoted to flow into the intake hole right 21a via the bottom surface, and the hot air discharged from the main body is released. It is possible to reduce the risk of entering the machine room.

The intake hole left 21b is provided below the intake duct portion 505a of the cooling fan holding member left 505, takes in outside air from under the water tank holding member 53, passes through the bottom surface of the bottom plate 21, and passes through the cooling fan left 503c. Forming a road.

The left 501 of the skirt member has a U-shape, and the side surface side of the main body has a longer shape than the central fan device side. The length on the side surface of the main body is not particularly limited as long as it prevents hot air from wrapping around from the side surface of the main body and does not allow hot air to enter the machine room from the left 21b of the intake hole. By shortening the length of the central fan device side compared to the side surface side of the main body, the air from the front side of the main body 1 is promoted to flow into the intake hole left 21b via the bottom surface, and the hot air discharged from the main body is released. It is possible to reduce the risk of entering the machine room.

The right inner wall portion 500a and the left inner wall portion 501a are provided on the center side of the main body of the skirt member right 500 and the skirt member left 501, respectively, so that the air passage from the water tank holding member 53 is divided into three parts (FIG. 9). The right inner wall portion 500a and the left inner wall portion 501a form an air passage to the central fan device 502b in addition to the air passage to the right fan device 502a and the left fan device 502c.

With the above configuration, outside air can be taken into the right fan device 502a, the central fan device 502b, and the left fan device 502c even if they are installed without providing spaces on the side and back sides of the cooking cooker.

Further, by having a plurality of cooling fans 503, it is possible to control the cooling fan 503 suitable for cooking using the heat of microwaves, heaters, and steam, so that each component can be efficiently cooled. be able to.

Furthermore, by using a small cooling fan, the machine room can be kept to a minimum height, and a compact and highly installable cooker can be realized.

53 ... Water tank holding member, 500 ... Skirt member right, 501 ... Skirt member left, 502 ... Cooling means, 502a ... Right fan device, 502b ... Central fan device, 502c ...・ ・ Left fan device, 503 ・ ・ ・ Cooling fan, 503a ・ ・ ・ Cooling fan right, 503b ・ ・ ・ Cooling fan center, 503c cooling fan left, 504 ・ ・ ・ Cooling fan holding member right, 504a ・ ・ ・ Intake duct Part, 505 ... Cooling fan holding member left, 505a ... Intake duct part, 506 ... Rear duct

Claims (3)

A heating chamber for putting food to be cooked and heating it,
A heating means for heating the object to be cooked and
A machine room provided on the bottom surface of the heating chamber and
Left and right fan devices provided at both ends of the machine room,
A cooking device having a central fan device provided on the back surface of the heating chamber.
Skirt members are provided around the left and right intake holes that take air into the left and right fan devices.
A cooker, characterized in that an air flow path to the central fan device is formed between the respective skirt members. Each of the skirt members has a U-shape, and the central fan device side is shorter than the side surface side of the main body of the cooking cooker.
The cooking device according to claim 1. The left and right fans constituting the left and right fan devices are arranged on the front side of the cooking cooker with respect to the left and right intake holes, and the rotation axes of the left and right fans are on the bottom surface of the cooking cooker. On the other hand, it is characterized by being arranged almost horizontally.
The cooking device according to claim 1 or 2.

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