JP5511899B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device.

  Conventionally, as a cooking device, cooling is performed using cooling air supplied from a cooling fan arranged in a main casing to cool components such as an electrical component section and a display board arranged in the main casing. (For example, refer to Japanese Patent Laid-Open No. 2000-240948 (Patent Document 1)).

  In the heating cooker, the electrical component part is cooled by a cooling fan arranged at the rear part of the main body casing blowing out cooling air toward the front.

  However, in the heating cooker, since the cooling air that has passed through the electrical component part is in a state where the temperature has increased due to heat exchange with each electrical component, the temperature of the side wall of the main casing of the heating cooker increases. As a result, when installing the cooking device, there is a problem that it is necessary to provide a sufficient space in the side portion of the cooking device.

JP 2000-240948 A

  Then, the subject of this invention is providing the heating cooker which can suppress the temperature rise of the side wall of a main body casing, and can reduce the empty space provided in a side part at the time of installation.

In order to solve the above problems, the heating cooker of the present invention is:
A body casing;
A heating chamber disposed in the main body casing;
An electrical component part disposed in the main body casing and around the heating chamber;
A side plate arranged with a gap between the side wall of the main body casing,
A cooling fan that is disposed in the main body casing and in the vicinity of the electrical component part, and blows cooling air toward the electrical component part;
The cooling fan is disposed so as to blow out a part of the cooling air into a space formed between the side plate and the side wall of the main body casing,
The electrical component part is disposed on the side of the heating chamber,
The front side of the electrical equipment unit of the main body casing includes a display unit having a display substrate,
The main body casing that faces the side plate after a part of the cooling air that has passed through the space formed between the side plate and the side wall of the main body casing reaches the display unit to cool the display substrate. It is discharged from an exhaust port arranged on the side wall of the main body casing different from the side wall of the main body casing.

  According to the above configuration, since a part of the cooling air from the cooling fan arranged in the vicinity of the electrical component part blows out into the space formed between the side plate and the side wall of the main body casing, the electrical component part of the main body casing It is possible to keep the temperature of the side wall on the side where is placed at a low temperature. Thereby, the temperature rise of the side wall of a main body casing can be suppressed, the empty space provided in a side part at the time of installation can be decreased, and the freedom degree of installation improves.

  In addition, since a part of the cooling air from the cooling fan blows out into the space formed between the side plate and the side wall of the main body casing, the cooling air flows through the electrical component parts arranged on the side of the heating chamber. Since it reaches the display unit on the front side without passing through, it can be kept at a lower temperature than the cooling air that reaches the display unit through the electrical component unit, and the display unit can be cooled efficiently.

Moreover, in the heating cooker of one embodiment,
Having an upper heater disposed at the top of the heating chamber;
Cooling air after reaching the display unit and cooling the display substrate flows through the upper heater and is discharged from the exhaust port .

Moreover, in the heating cooker of one embodiment,
A door that is disposed on the front side of the main body casing and pivots about a lower end side to open and close the opening of the heating chamber;
A steam generator for generating steam to be supplied into the heating chamber,
A cooling air outlet that blows out part of the cooling air of the cooling fan is provided on the side or upper side of the opening of the heating chamber so as to cross the opening of the heating chamber with the door open.

  According to the above-described embodiment, with the cooling air blown across the opening of the heating chamber from the cooling air outlet provided on the side or upper side of the opening with the door opened, after completion of cooking using steam, When the user opens the door, the steam filling the heating chamber is diffused to the side by the cooling air, so that the user can be prevented from being exposed to the steam. Further, by blowing the air after cooling the display unit from the cooling air outlet, a mechanism that serves as both cooling of the display unit and blowing to the opening of the heating chamber can be realized, and the configuration can be simplified.

  As is apparent from the above, according to the heating cooker of the present invention, it is possible to realize a heating cooker that can suppress an increase in the temperature of the side wall of the main body casing and can reduce the empty space provided in the side portion during installation.

FIG. 1 is a front view of a heating cooker according to a first embodiment of the present invention as viewed from the front side. FIG. 2 is a front view of the heating cooker with the door opened. FIG. 3 is a schematic diagram of a longitudinal section viewed from the right side of the cooking device. FIG. 4 is a longitudinal sectional view as seen from the front of the heating cooker. FIG. 5 is a longitudinal sectional view as seen from the right side of the cooking device. FIG. 6 is a longitudinal sectional view as seen from the right side of the cooking device. FIG. 7 is a cross-sectional view seen from the top surface of the cooking device. FIG. 8A is a schematic cross-sectional view of the main part viewed from the top surface of the cooking device. FIG. 8B is a schematic cross-sectional view of the main part when another example of the heating cooker is viewed from above. FIG. 9 is a perspective view of the heating cooker as viewed from the front side obliquely from above. FIG. 10 is a perspective view of the back side of the heating cooker as seen from an obliquely lower side. FIG. 11 is a front view of a backlight substrate used in the liquid crystal display portion of the heating cooker according to the second embodiment of the present invention. FIG. 12 is a schematic vertical sectional view of the main part of the liquid crystal display unit. FIG. 13 is a schematic longitudinal sectional view of a main part of a liquid crystal display unit of another example. FIG. 14 is a front view of a backlight substrate used in a liquid crystal display unit of another example. FIG. 15 is a schematic longitudinal sectional view of a main part of a liquid crystal display unit of another example.

  Hereinafter, the cooking device of the present invention will be described in detail with reference to the illustrated embodiments.

[First Embodiment]
FIG. 1: has shown the front view which looked at the heating cooker of 1st Embodiment of this invention from the front side, and FIG. 2 has shown the front view of the heating cooker in the state which opened the door.

  As shown in FIG. 1, the heating cooker of the first embodiment includes a rectangular parallelepiped main body casing 1, a heating chamber 2 (shown in FIG. 2) provided in the main body casing 1, and the front surface of the main body casing 1. And a door 3 rotatably attached to the side.

  The door 3 rotates around the lower end portion and opens and closes the opening 2 a of the heating chamber 2. A handle 4 is attached to the upper portion of the door 3. In addition, a heat resistant glass 5 is disposed at a substantially central portion of the door 3, and the user can visually recognize the state in the heating chamber 2 through the heat resistant glass 5. A heat resistant resin packing 40 (shown in FIG. 2) is fixed to the rear surface of the door 3 so as to surround the heat resistant glass 5. When the door 3 is closed, the packing 40 is in close contact with the peripheral edge of the opening 2 a of the heating chamber 2. Thereby, it can prevent that the water vapor | steam etc. in the heating chamber 2 leak from between the door 3 and the peripheral part of the opening part 2a of the heating chamber 2. FIG.

  An exhaust duct 30 having a dilution exhaust port 28 is disposed on the upper surface and the back surface side of the main body casing 1. One end of the exhaust duct 30 is connected to an exhaust port 19 provided in the heating chamber 2 shown in FIG.

  An operation panel 6 is provided on the right side of the front surface of the main casing 1. The operation panel 6 includes a liquid crystal display unit 7 as an example of a display substrate, a dial 8 and a plurality of buttons 9. A water tank 10 is accommodated below the dial 8. The water tank 10 is detachable from the main casing 1, and is attached to the main casing 1 or removed from the main casing 1 from the front side of the main casing 1.

  The heating cooker includes a dew receptacle 50 (shown in FIG. 1) detachably attached to the lower side and the front side of the main casing 1. The dew receiver 50 receives water droplets that fall along the inner surface of the door 3 and the front surface of the main casing 1.

  As shown in FIG. 1, the heating cooker is provided with a heat shield plate 18 (shown in FIG. 3) made of stainless steel on the side surface, the bottom surface, and the top surface of the heating chamber 2. A heat insulating material (not shown) is arranged around the heating chamber 2 and inside the door 3 so that the inside of the heating chamber 2 and the outside are insulated.

  Upper tray receiving portions 43 and 44 and lower tray receiving portions 45 and 46 having a two-stage upper and lower structure are provided on the inner sides of both sides in the heating chamber 2.

  FIG. 3 is a schematic diagram of a longitudinal section viewed from the right side of the heating cooker, and the same reference numerals are given to the same components as those in FIGS. In FIG. 3, 10 is a water tank for storing water for steam, 11 is a water level sensor for detecting the water level in the water tank 10, 12 is a water supply pump for supplying water from the water tank 10 to the steam generator 20, and 13 is water supply. Pipe, 14 is an upper heater, 15 is an upper heater cover, 16 is a stainless steel tray on which an object to be heated 90 is placed, 17 is a lower heater, 18 is a heat shield, and 19 is an exhaust provided at the lower rear of the heating chamber 2. , 20 is a steam generator, 21 is a steam outlet for blowing steam from the steam generator 20, 24 is an exhaust port cover, 25 is an exhaust thermosensor, 27 is a cold air path, 28 is a dilution exhaust port, and 30 is an exhaust duct. , 31 is an opening for introducing cold air, and 50 is a dew receiving device. One end of the water supply pipe 13 is connected to a connecting portion (not shown) provided on the lower side of the water tank 10, and the other end of the water supply pipe 13 is connected to the steam generator 20.

  The water supply pump 12 sucks water in the water tank 10 and supplies the water to the steam generator 20 via the water supply pipe 13. The steam generator 20 heats water from the feed water pump 12 to generate steam, supplies the generated steam into the heating chamber 2 via the steam outlet 21, or superheats the steam to superheat steam. Or can be supplied into the heating chamber 2. Here, the said superheated steam means the steam heated to the overheated state of 100 degreeC or more.

  The object to be heated 90 can be heated with water vapor or superheated steam from the steam generator 20, and can also be heated with radiant heat from the upper heater 14 and the lower heater 17. A ceiling wall of the heating chamber 2 is provided below the upper heater 14, and a bottom wall of the heating chamber 2 is provided on the lower heater 17. The upper heater 14 and the lower heater 17 are not exposed in the heating chamber 2.

  In addition, an internal temperature sensor (not shown) that detects the temperature of the atmosphere in the heating chamber 2 is disposed on the upper right side of the heating chamber 2.

  FIG. 4 shows a longitudinal sectional view as seen from the front of the cooking device, and FIG. 5 shows a longitudinal sectional view as seen from the right side of the cooking device. 4 and 5, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals.

  As shown in FIGS. 4 and 5, an electrical component chamber S in which electrical components are disposed is formed on the right side of the heating chamber 2 disposed in the main body casing 1. The electrical component chamber S is partitioned by a partition plate 41 on the back side. A cooling fan 53 for sending cooling air from the back side to the electrical component room S is disposed on the partition plate 41. A cooling fan motor 54 for driving the cooling fan 53 is attached to the back side of the main casing 1. Further, a magnetron 61 and an inverter unit 62 as an example of an electrical component part attached to the main body casing 1 are arranged on the leeward side of the cooling fan 53 in the electrical component room S. The inverter unit 62 is attached to the main body casing 1 by using an attachment plate 56 as an example of a side plate.

  And the cooling fan 53 takes in external air from the some inlet 55 (shown in FIG. 5) formed in the back surface of the main body casing 1, and blows off the taken in outside air as cooling air. The cooling fan 53 is arranged so that a part of the cooling air is blown into a space formed between the mounting plate 56 as a side plate and the side wall 1 a of the main casing 1.

  A rotating antenna 51 (shown in FIG. 5) and a rotating antenna motor (not shown) for driving the rotating antenna 51 are disposed below the heating chamber 2. Then, the microwave generated in the magnetron 61 is guided to the lower center of the heating chamber 2 by the waveguide 60 (shown in FIG. 4), and is rotated by the rotating antenna 51 driven by the rotating antenna motor. The object to be heated 90 is heated by being radiated upward inside.

  FIG. 6 shows a longitudinal sectional view as seen from the right side of the heating cooker with the mounting plate 56 removed. The same components as those in FIG. 5 are denoted by the same reference numerals.

  Moreover, FIG. 7 has shown the cross-sectional view seen from the upper surface of the said heating cooker. In FIG. 7, the inverter unit 62 is omitted.

  As shown in FIG. 7, the mounting plate 56 is disposed substantially parallel to the right side wall 1 a of the main body casing 1 with a predetermined interval. A part of the cooling air from the cooling fan 53 (shown in FIGS. 4 and 5) passes between the mounting plate 56 and the right side wall 1a of the main casing 1 and is disposed in the electrical component chamber S. The right side wall 1a of the main body casing 1 is cooled without going through.

  A part of the cooling air blown out from the cooling fan 53 passes between the mounting plate 56 and the left side wall 1 a of the main body casing 1 and reaches the front of the main body casing 1. The space between the mounting plate 56 and the left side wall 1a of the main body casing 1 is maintained at a low temperature by the outside of the left side surface of the main body casing 1 being in contact with the outside air. The cooling air is kept at a lower temperature than the cooling air passing between the right side wall 1 a of the casing 1 and the mounting plate 56. Thereby, the liquid crystal display unit 7 disposed in front of the main casing 1 can be efficiently cooled.

  The cooling air that has cooled the liquid crystal display unit 7 then flows between the upper heater 14 and the top surface of the main body casing 1 toward the right side of the main body casing 1 while cooling the upper heater 14, and is provided at the upper left rear portion of the main body casing 1. The diluted exhaust port 28 is discharged out of the main casing 1.

  According to the heating cooker having the above configuration, a part of the cooling air from the cooling fan 53 passes between the main body casing 1 and the attachment plate 56 and reaches the liquid crystal display unit 7, so that the magnetron 61 and the inverter unit are provided. It is possible to efficiently cool both the electrical components such as 62 and the liquid crystal display unit 7.

  FIG. 8A shows a schematic diagram of a cross section of the main part viewed from the upper surface of the cooking device. In FIG. 8A, the lower side shows the front side and the upper side shows the back side.

  As shown in FIG. 8A, a backlight substrate 70 is arranged at a predetermined interval on the back side of the liquid crystal display substrate 73 of the liquid crystal display unit 7. A plurality of LEDs 71 are mounted on the front side of the backlight substrate 70. An LED holder 72 is provided so as to enclose between the backlight substrate 70 and the liquid crystal display substrate 73. A vent 72 a is provided on the right side of the LED holder 72, and an exhaust port 72 b is provided on the left side of the LED holder 72. The backlight substrate 70 and the plurality of LEDs 71 constitute a backlight.

  The backlight, the LED holder 72, and the liquid crystal display substrate 73 constitute the liquid crystal display unit 7. Further, a backlight cooling air passage is formed on the right side of the LED holder 72 in a space between the vent hole 72 a, the exhaust port 72 b and the backlight substrate 70 and the liquid crystal display substrate 73.

  A part of the cooling air from the cooling fan 53 (shown in FIGS. 4 and 5) passes between the mounting plate 56 and the right side wall 1a of the main casing 1 and then flows into the LED holder 72 from the vent 72a. Then, the air is exhausted from the exhaust port 72b. As a result, the plurality of LEDs 71 mounted on the backlight substrate 70 are cooled, and the other part of the cooling air from the cooling fan 53 cools the back side of the backlight substrate 70, so that the heat generated by the plurality of LEDs 71 is generated. Can be suppressed and reliability can be improved.

  According to the cooking device configured as described above, the cooling air from the cooling fan 53 directly hits the plurality of LEDs 71 mounted on the backlight substrate 70, so that the cooling air is applied only from the back side of the backlight substrate 70 to be cooled. The cooling efficiency of the LED 71 can be increased as compared with the case.

  In addition, a part of the cooling air passing through the space formed between the mounting plate 56 as a side plate and the side wall 1 a of the main body casing 1 on the front side of the liquid crystal display substrate 73 passes the front side of the liquid crystal display substrate 73. A cooling air passage for the display substrate that guides it to pass therethrough is provided.

  Since the cooling air passage for the display substrate is formed between the liquid crystal display substrate 73 and the front surface of the main casing 1 and between the liquid crystal display substrate 73 and the right side surface of the main casing 1, the cooling for the display substrate is formed. The cooling air that has flowed into the air passage wraps around the front surface side of the liquid crystal display substrate 73 and passes through the entire surface of the liquid crystal display substrate 73, thereby directly cooling the electronic components disposed on the front surface side of the liquid crystal display substrate 73. Can do.

  According to the heating cooker having the above configuration, the cooling air from the cooling fan 53 directly hits the electronic components arranged on the liquid crystal display substrate 73 of the liquid crystal display unit 7, thereby cooling from the back side of the substrate on which the electronic components are arranged. The cooling efficiency of each component can be increased as compared with the case of cooling by applying wind.

  As shown in FIG. 8B, cooling is performed by blowing a part of the cooling air of the cooling fan 53 to the side of the opening of the heating chamber 2 so as to cross the opening 2a of the heating chamber 2 with the door 3 opened. A wind outlet 80 may be provided. In this case, when the user opens the door 3 after the cooking using steam by the cooling air blown out from the cooling air outlet 80 across the opening 2a of the heating chamber 2 with the door 3 opened, Since the steam filled in the heating chamber 2 is diffused to the side by the cooling air, it is possible to prevent the user from being exposed to the steam. In addition, the cooling air outlet may be provided above the opening 2a of the heating chamber 2, but by cooling the liquid crystal display unit 7 from the cooling air outlet 80 provided on the right side, A mechanism that serves as both cooling of the liquid crystal display unit 7 and blowing to the opening 2a of the heating chamber 2 can be realized, and the configuration can be simplified.

  Hereinafter, the steam heating operation of the cooking device configured as described above will be described with reference to FIGS. When a power switch (not shown) of the operation panel 6 is pressed, the power is turned on, and operation of the oven cooking using superheated steam is started by operating the operation panel 6. Then, first, the control device (not shown) detects whether or not the water tank 10 is normally attached by a water tank detection unit (not shown), and the water tank 10 is normally attached. If so, the operation of the water supply pump 12 is started. Then, water is supplied from the water tank 10 into the steam generator 20 through the water supply pipe 13 by the water supply pump 12.

  Next, when the water in the steam generator 20 boils, saturated steam is generated, and the generated saturated steam is heated by a steam heating heater (not shown) in the steam generator 20 to 100 ° C. or higher (cooking content). The superheated water vapor is supplied to the heating chamber 2 from the steam outlet 21.

  In this way, superheated steam is blown into the heating chamber 2 and at the same time the upper heater 14 and the lower heater 17 are energized to be placed on the tray 16 while maintaining a uniform temperature and humidity distribution in the heating chamber 2. The heated object 90 is heated. In that case, the superheated steam that has contacted the surface of the object to be heated 90 also heats the object to be heated 90 by releasing latent heat when dew condensation occurs on the surface of the object to be heated 90. Thereby, a large amount of heat of superheated steam can be reliably and promptly applied to the entire surface of the article 90 to be heated. Therefore, it is possible to realize heat cooking with no spots and good finish.

  Further, when time elapses during the cooking operation, the amount of steam in the heating chamber 2 increases, and the surplus amount of steam passes through the exhaust port cover 24 and the exhaust duct 30 from the exhaust port 19. Through the dilution exhaust port 28.

  After the cooking is finished, the control device displays a cooking end message on the liquid crystal display unit 7 of the operation panel 6, and further sounds a signal by a buzzer (not shown) provided on the operation panel 6.

  On the other hand, in the case of the microwave heating operation, when the operation panel 6 is operated by the user and the start key (not shown) is pressed after the microwave cooking menu is determined, the microwave heating cooking is performed. Operation starts. Then, the control device drives the magnetron 61 to supply microwaves to the object to be heated 90 via the waveguide 60 and the rotating antenna 51, thereby heating the object to be heated 90. In that case, a non-metal receiving tray through which the microwave on which the article to be heated 90 is placed is laid, for example, on the bottom plate of the heating chamber 2.

  The cooling fan motor 54 is energized simultaneously with energization of the heater of the steam generator 20 or after the temperature of the heater of the steam generator 20 rises.

  FIG. 9 shows a perspective view of the heating cooker as viewed from the front side obliquely from above, and the same components shown in FIGS. 1 to 3 are given the same reference numerals.

  As shown in FIG. 9, a part of the cooling air from the cooling fan 53 passes through the right side of the heating chamber 2 and cools the electrical components in the electrical component chamber S to the upper heater covers 15 and 15. Along the upper surface side of the heating chamber 2 along the left side. On the other hand, a part of the cooling air from the cooling fan 53 flows to the lower right side of the heating chamber 2 while cooling the electric components in the electric component room S, and passes toward the left side through the bottom surface side of the heating chamber 2. Flowing.

  In the main body casing 1, after a part of the cooling air from the cooling fan 53 passes through a space formed between the mounting plate 56 as a side plate and the side wall 1 a of the main body casing 1, the liquid crystal display unit 7 is moved. While cooling, it passes through the right side of the heating chamber 2 and flows along the upper heater covers 15 and 15 on the upper side of the heating chamber 2 toward the left side.

  Moreover, FIG. 10 has shown the perspective view which looked at the back surface side from the diagonally downward direction of the said heating cooker, and attaches | subjects the same reference number to the same component shown in FIGS. 1-3.

  As shown in FIG. 10, a steam generator 20 is arranged at the center of the back surface side of the heating chamber 2, and an exhaust duct 30 is arranged on the left side (right side in FIG. 10). In the main body casing 1, a part of the cooling air sent from the cooling fan 53 to the electrical component chamber S passes through the bottom surface side of the heating chamber 2 while cooling the electrical components in the electrical component chamber S. The cooling air flows toward the left side (the right side in FIG. 10) and the back side, passes through the back side and the left side of the heating chamber 2 (the right side in FIG. 10), and enters the exhaust duct 30 from the cold air introduction opening 31. Join.

  In this embodiment, the cooling passage of the heating cooker passes from the electrical component room S through the upper surface side and the left side surface of the heating chamber 2 to the cold air introduction opening 31 on the rear surface side, and from the electrical component room S. A path from the bottom surface side and the left side surface of the heating chamber 2 to the cold air introduction opening 31 on the back surface side, and the cold air introduction opening portion 31 from the electrical component room S through the bottom surface side and the back surface side of the heating chamber 2. It is a route to. Here, not all of the cooling air sent from the cooling fan 53 to the electrical component room S is exhausted by the exhaust duct 30 via the opening 31 for introducing cold air, It is discharged to the outside from the other opening portion of one.

  In FIG. 10, a heat shield plate 18 is provided on the bottom surface side of the heating chamber 2 to block heat from the heating chamber 2 and receive condensed water adhering to the surface of the heating chamber 2 and guide it to the dew receiver 50. doing. Therefore, when a part of the cooling air sent from the cooling fan 53 to the electrical component chamber S passes through the bottom surface side of the heating chamber 2 in the main body casing 1, There is a path that passes between the bottom surface of the chamber 2 and the heat shield plate 18.

  In the heating cooker, the structure in the main body casing 1 is designed so as to secure an air flow in the cooling passage, that is, a wind path through which cooling air merges in the exhaust duct 30.

  According to the heating cooker having the above configuration, a part of the cooling air from the cooling fan 53 is blown out into the space formed between the mounting plate 56 as the side plate and the side wall 1a of the main body casing 1. The temperature of the side wall 1a on the electrical component room S side can be kept low. Thereby, the temperature rise of the side wall 1a of the main body casing 1 can be suppressed, the empty space provided in the side part at the time of installation can be reduced, and the freedom degree of installation can be improved.

  Further, since a part of the cooling air from the cooling fan 53 blows out into a space formed between the mounting plate 56 as a side plate and the side wall 1a of the main casing 1, the cooling air flows in the electrical component room S. In order to reach the liquid crystal display unit 7 on the front side without passing through the side where the electrical components are arranged, the cooling air reaches the liquid crystal display unit 7 through the side where the electrical components are arranged in the electrical component room S. It can be kept at a low temperature and can be cooled efficiently.

  Further, since a part of the cooling air from the cooling fan 53 passes through the front surface side of the liquid crystal display substrate 73 through the display substrate cooling air passage, each of the cooling air is arranged on the front surface side of the liquid crystal display substrate 73. Parts can be efficiently cooled.

  In addition, a part of the cooling air from the cooling fan 53 passes through a space formed between the mounting plate 56 as a side plate and the side wall 1a of the main body casing 1, and the backlight substrate 170 via the backlight cooling air passage. Therefore, the backlight (170, 171) can be efficiently cooled because it can be kept at a lower temperature than the cooling air passing through the side where the electrical components are disposed.

[Second Embodiment]
FIG. 11 shows a front view of a backlight substrate 170 used in the liquid crystal display unit 7 of the cooking device of the second embodiment of the present invention, and FIG. 12 shows a schematic cross-sectional view of the main part of the liquid crystal display unit 7. ing. In addition, since the heating cooker of this 2nd Embodiment is the structure similar to the heating cooker of 1st Embodiment except the structure of the liquid crystal display part 7, it uses FIG. 1, FIG. This will be described using numbers.

  As shown in FIGS. 11 and 12, the backlight substrate 170 is arranged at a predetermined interval on the back side of the liquid crystal display substrate 73 of the liquid crystal display unit 7. A plurality of LEDs 171 are mounted on the front side of the backlight substrate 170. A vent hole 170 a is provided on the right side of the backlight substrate 170 and below the LED 171. An LED holder 172 is provided so as to enclose between the backlight substrate 170 and the liquid crystal display substrate 73. On the upper side of the LED holder 172, there is provided an exhaust port 172a that guides exhaust gas obliquely forward.

  A part of the cooling air from the cooling fan 53 (shown in FIGS. 4 and 5) passes between the right side wall 1 a of the main body casing 1 and the mounting plate 56, and then the LED from the vent hole 170 a of the backlight substrate 170. It flows into the holder 172 and is exhausted from the exhaust port 172a. Accordingly, the plurality of LEDs 171 mounted on the backlight substrate 170 are cooled, and the other part of the cooling air from the cooling fan 53 cools the back surface side of the backlight substrate 170. The temperature rise of the light substrate 170 can be suppressed, and the reliability can be improved.

  The structure in which the cooling air is passed between the backlight substrate 170 and the liquid crystal display substrate 73 is not limited to the structure shown in FIGS.

  For example, as shown in FIG. 13, an exhaust port 172 b that guides exhaust gas obliquely rearward toward the upper side may be provided on the upper side of the LED holder 172. In this case, a part of the cooling air from the cooling fan 53 is guided obliquely upward into the LED holder 172 by the vent hole 170a of the backlight substrate 170, hits the liquid crystal display substrate 73 side, and then the LED holder 172. Is exhausted out of the LED holder 172 from the exhaust port 172b.

  Further, as shown in FIG. 14, on the right side of the backlight substrate 170 and below the LEDs 171, there are provided vent holes 170 a that guide the cooling air obliquely upward into the LED holder 172, and further, the backlight substrate 170. An exhaust port 170b that guides exhaust gas obliquely upward toward the rear may be provided on the right side of the LED 171 and above the LED 171. In this case, as shown in FIG. 15, a part of the cooling air from the cooling fan 53 is guided obliquely upward toward the LED holder 172 by the vent hole 170a of the backlight substrate 170 and is directed to the liquid crystal display substrate 73 side. After hitting, the LED substrate 172 is exhausted from the exhaust port 170b of the backlight substrate 170.

  The heating cooker of the second embodiment has the same effect as the heating cooker of the first embodiment.

  Although the said 1st, 2nd embodiment demonstrated the heating cooker by which the electrical component part (magnetron 61, the inverter part 62) was arrange | positioned in the electrical component room S of the right side part of the heating chamber 2 in the main body casing 1. FIG. However, the present invention is not limited to this, and the present invention may be applied to a heating cooker in which the electrical component part is disposed in the main body casing and around the heating chamber (including the rear surface side).

  Examples of the cooking device according to the present invention include not only an oven range using superheated steam but also an oven using superheated steam, an oven range not using superheated steam, and an oven not using superheated steam.

  In the cooking device of the present invention, healthy cooking can be performed by using superheated steam or saturated steam in a microwave oven or the like. For example, in the cooking device of the present invention, superheated steam or saturated steam having a temperature of 100 ° C. or higher is supplied to the food surface, and the superheated steam or saturated steam adhered to the food surface is condensed to give a large amount of condensation latent heat to the food. So it can efficiently transfer heat to food. Moreover, when condensed water adheres to the food surface and salt and oil are dropped together with condensed water, salt and oil in the food can be reduced. Further, the inside of the heating chamber is filled with superheated steam or saturated steam to be in a low oxygen state, thereby enabling cooking while suppressing food oxidation. Here, the low oxygen state refers to a state where the volume% of oxygen is 10% or less (for example, 0.5 to 3%) in the heating chamber.

  Although specific embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention.

The cooking device of this invention is
A body casing;
A heating chamber disposed in the main body casing;
An electrical component part disposed in the main body casing and around the heating chamber;
A side plate disposed on a side portion of the electrical component part and disposed with a space between the side wall of the main body casing;
A cooling fan that is disposed in the main body casing and in the vicinity of the electrical component part, and blows cooling air toward the electrical component part;
The cooling fan is disposed so as to blow out a part of the cooling air into a space formed between the side plate and the side wall of the main body casing,
The side plate is a mounting plate in which electrical components are mounted on the electrical component part side,
The electrical component part is disposed on the side of the heating chamber,
A display part is provided on the front side of the electrical component part of the main body casing,
The display section
A display board;
A cooling air passage for a display substrate that guides a part of the cooling air that has passed through a space formed between the side plate and the side wall of the main casing to pass through the front side of the display substrate; It is characterized by.

  According to the above configuration, part of the cooling air from the cooling fan disposed in the vicinity of the electrical component part is between the side plate that is the mounting plate with the electrical component attached to the electrical component part side and the side wall of the main casing. Therefore, the temperature of the side wall on the side where the electrical component part of the main casing is disposed can be kept low. Thereby, the temperature rise of the side wall of a main body casing can be suppressed, the empty space provided in a side part at the time of installation can be decreased, and the freedom degree of installation improves.

  In addition, since a part of the cooling air from the cooling fan blows out into the space formed between the side plate and the side wall of the main body casing, the cooling air flows through the electrical component parts arranged on the side of the heating chamber. Since it reaches the display unit on the front side without passing through, it can be kept at a lower temperature than the cooling air that reaches the display unit through the electrical component unit, and the display unit can be cooled efficiently.

  In addition, since a part of the cooling air from the cooling fan passes the front side of the display board via the display board cooling air passage, it is efficient to cool each component arranged on the front side of the display board. Can be done automatically.

Moreover, in the heating cooker of one embodiment,
The display section
With backlight,
A portion of the cooling air that has passed through the space formed between the side plate and the side wall of the main body casing has a backlight cooling air passage that guides the air so that it passes through the front side of the backlight.

  According to the above-described embodiment, a part of the cooling air from the cooling fan passes through the space formed between the side plate of the electrical component part and the side wall of the main body casing, and passes through the cooling air passage for the backlight. Since it reaches the front side of the backlight, it can be kept at a lower temperature than the cooling air that has passed between the electrical component parts, and the backlight can be efficiently cooled.

Moreover, in the heating cooker of one embodiment,
A door that is disposed on the front side of the main body casing and pivots about a lower end side to open and close the opening of the heating chamber;
A steam generator for generating steam to be supplied into the heating chamber,
A cooling air outlet that blows out part of the cooling air of the cooling fan is provided on the side or upper side of the opening of the heating chamber so as to cross the opening of the heating chamber with the door open.

  According to the above-described embodiment, with the cooling air blown across the opening of the heating chamber from the cooling air outlet provided on the side or upper side of the opening with the door opened, after completion of cooking using steam, When the user opens the door, the steam filling the heating chamber is diffused to the side by the cooling air, so that the user can be prevented from being exposed to the steam. Further, by blowing the air after cooling the display unit from the cooling air outlet, a mechanism that serves as both cooling of the display unit and blowing to the opening of the heating chamber can be realized, and the configuration can be simplified.

DESCRIPTION OF SYMBOLS 1 ... Main body casing 2 ... Heating chamber 2a ... Opening part 3 ... Door 4 ... Handle 5 ... Heat-resistant glass 6 ... Operation panel 7 ... Liquid crystal display part 10 ... Water tank 11 ... Water level sensor 12 ... Water supply pump 13 ... Water supply pipe 16 ... Tray DESCRIPTION OF SYMBOLS 19 ... Exhaust port 20 ... Steam generator 21 ... Steam blower outlet 24 ... Exhaust port cover 28 ... Dilution exhaust port 30 ... Exhaust duct 31 ... Opening part 43 for cool air 43, 44 ... Upper tray receiving part 45, 46 ... Lower tray Receiving part 50 ... dew receiver 51 ... rotating antenna 53 ... cooling fan 54 ... cooling fan motor 55 ... intake port 56 ... mounting plate 60 ... waveguide 61 ... magnetron 62 ... inverter part 70 ... backlight substrate 71 ... LED
72 ... LED holder 73 ... Liquid crystal display substrate 80 ... Cooling air outlet 90 ... Object to be heated

Claims (3)

A body casing;
A heating chamber disposed in the main body casing;
An electrical component part disposed in the main body casing and around the heating chamber;
A side plate arranged with a gap between the side wall of the main body casing,
A cooling fan that is disposed in the main body casing and in the vicinity of the electrical component part, and blows cooling air toward the electrical component part;
The cooling fan is disposed so as to blow out a part of the cooling air into a space formed between the side plate and the side wall of the main body casing,
The electrical component part is disposed on the side of the heating chamber,
The front side of the electrical equipment unit of the main body casing includes a display unit having a display substrate,
The main body casing that faces the side plate after a part of the cooling air that has passed through the space formed between the side plate and the side wall of the main body casing reaches the display unit to cool the display substrate. It is discharged from an exhaust port arranged on the side wall of the main body casing, which is different from the side wall. The heating cooker according to claim 1, wherein
Having an upper heater disposed at the top of the heating chamber;
The cooking device according to claim 1, wherein the cooling air after reaching the display unit and cooling the display substrate flows through the upper heater and is discharged from the exhaust port. The heating cooker according to claim 1 or 2,
A door that is disposed on the front side of the main body casing and pivots about a lower end side to open and close the opening of the heating chamber;
A steam generator for generating steam to be supplied into the heating chamber,
A cooling air outlet that blows out part of the cooling air of the cooling fan is provided on the side or upper side of the opening of the heating chamber so as to cross the opening of the heating chamber with the door open. A heating cooker.

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