JP5759858B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device that sucks air from the front and suppresses liquid, water vapor, oily smoke, and the like from being sucked into the main body.

  The induction heating cooker performs cooking using the Joule heat generated by the eddy current generated at the bottom of the pan when magnetic lines generated by flowing a high-frequency current through the induction heating coil pass through the metal pan. In the induction heating cooker, the induction heating coil and the electronic components on the control board that control the induction heating coil generate heat. Therefore, generally, the induction heating coil and the control board are cooled by blowing cooling air from a blower. .

  This induction heating cooker includes a stationary type and a built-in type that is stored in a kitchen cabinet. In the case of the built-in type, in order to secure the cooling air volume and exhaust the cooling air to the outside of the kitchen cabinet or the like, the intake port and the exhaust port are often installed on the upper surface of the main body. When the air intake vent is opened on the top plate, liquids such as boiled juice spilled on the top plate, water vapor generated during cooking, oil smoke, etc. may flow into the body due to the airflow sucked from the air intake vent There was a risk of damaging internal electronic components.

  For this reason, there are air intakes provided on the front, back and bottom surfaces of the body to suppress the suction of liquid, water vapor, oily smoke, etc., and examples described in the following patent documents are known. Yes.

  Patent Document 1 describes a ventilation unit provided at the rear of a main body case with a ventilation hole provided in a side cover on the front surface of the main body case for intake, and a gap between the kitchen cabinet to which the main body case is attached and the main body case as an intake passage. The main body is cooled, exhausted from an exhaust port provided on the upper surface of the upper unit, and exhausted to the front of the kitchen cabinet.

Japanese Patent No. 3735810

  In recent cooking devices, as described above, the cooking device shown in Patent Document 1 has ventilation holes in the side cover on the front surface of the main body case in order to prevent liquid, water vapor, oily smoke and the like from being sucked. Installed and sucked in, using the gap between the kitchen cabinet and the main body case to install the main body case as the intake path, sucking into the air blowing unit provided behind the main body case and cooling the inside of the main body, heating for a long time When the cooker is used, the temperature inside the kitchen cabinet rises, and the cold air sucked from the side cover on the front of the main unit case is also heated by the large amount of air that stays inside the kitchen cabinet. There is a problem that the average temperature of the cooling air for cooling the inside rises.

The present invention has been made in order to solve the above-described problems, and includes a main body, a heating unit that heats an object to be heated at the top of the main body, a control circuit that controls the heating unit, and the control circuit. A substrate case that is housed and separated by two partition plates outside the bottom surface and disposed on the bottom surface in the main body, a blow-out portion that blows cooling air to the control circuit in the substrate case, and the air for the cooling air A blower fan disposed at the rear of the substrate case, a rear intake opening opened to suck the outside air at the back of the main body, and sucking the outside air to the front side of the main body And a rear space in which a space between the suction portion of the blower fan, the rear intake port, and the front intake port communicates with each other, inside the main body and below the substrate case Air sucked from the front intake port And providing a spatial path that leads between, the space passages are surrounded by the two partition plates of the outer bottom surface of the bottom surface and the substrate case of the body and bottom surface of the substrate case, the front air inlet The opening is provided with a plurality of crosspieces .

  According to the present invention, the temperature of the air sucked from the kitchen cabinet is lowered by cooling the substrate case and mixing the air sucked from the kitchen cabinet and the air having a low temperature rise sucked from the front surface. Thus, the temperature of the cooling air blown into the main body by the blower fan can be lowered.

It is a perspective view of the state which stored the cooking-by-heating machine (an operation part is an open state) concerning one example in a kitchen cabinet. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 (the operation unit is in a closed state). It is a perspective view when an operation part is closed to the operation part case of the main body of one Example. It is a perspective view when an operation part is closed to the operation part case. It is a perspective view of the operation part case. It is sectional drawing when an operation part is closed to the operation part case. It is sectional drawing when an operation part is opened in the operation part case. It is explanatory drawing of the space channel | path of the main body.

  Embodiments of the present invention will be described below with reference to FIGS.

  1 and 2, the main body 2 of the cooking device is dropped from the upper surface of the kitchen cabinet 1, and after installation, an oven (roaster) 4, an operation unit 5, and a power switch 19 are connected from the front of the kitchen cabinet 1. It can be operated. In the kitchen, a ventilation device 200 is provided above the rear side of the main body 2 fitted in the kitchen cabinet 1. The ventilator 200 is operated when cooking and exhausts steam or oily smoke containing moisture to the outside and ventilates the room.

  A cooking pan 100, which is an object to be heated at the time of cooking, is placed on a plate 3 made of heat-resistant glass or the like and placed on the upper surface of the main body 2. The peripheral end surface of the plate 3 is protected by a plate frame 20 and covered. It forms a top plate on which heated objects are placed.

  A placement unit 6 is drawn on the plate 3, and cooking can be performed by placing a cooking pot on the placement unit 6. The placement unit 6 includes a placement unit right 6a on the right before the upper surface of the plate 3 and a placement unit left 6b on the left, and a placement unit in the back (center rear) between the placement units 6a and 6b. A center 6c is arranged. And the heating coil 11 which is located in the lower part of each mounting part 6 of the plate 3 and arrange | positioned in the upper part in the main body 2 and is a heating means for heating the cooking pan 100 is installed. The placement unit right 6a and the placement unit left 6b are each 3 kW, and the placement unit center 6c is an induction heating output of 2 kW. Not only iron and stainless steel but also nonmagnetic metal cooking pot 100 may be induction-heated.

  Further, on the front side of the plate 3, an upper surface operation unit 9 and an upper surface display unit 10 located on the back side thereof are provided. The upper surface operation unit 9 mainly sets the heating power and the heating time of the heating coil 11 and displays information set by the upper surface operation unit 9 on the upper surface display unit 10.

  The control circuit 150 is an inverter board 15 that supplies power to the heating coil 11, and a control board 13 that controls power supplied to the heating coil 11 and heating of the oven 4.

  Inside the main body 2, an air blowing fan 12, which is a cooling means for blowing air sucked from an air inlet 7, which will be described later, into the main body 2 in order to cool the heating coil 11 that is a heat generating component and the electronic components of the control circuit 150. Are arranged behind the control circuit 150. The blower fan 12 is disposed at the right rear portion of the main body 2. The suction portion 12a of the blower fan 12 is provided in a rear space 50 provided on the rear side of the main body 2 on the rear side of the substrate case 14 described later. The rear space 50 is provided on the rear side 2b of the main body 2 constituting this space on the front side of the main body 2 through a rear intake port 7a opened for sucking outside air and a space passage 90 described later. A front intake port 7b, which will be described later, and a blowout portion 12b of the blower fan 12 are connected by a space, and the others constitute a substantially sealed space. Therefore, when the blower fan 12 operates, the air in the rear space 50 is sucked from the suction part 12a of the blower fan 12, discharged from the blowout part 12b, and the electronic components mounted on the control board 13 in the board case 14 are mounted. Cooling. When the air in the rear space 50 is blown to the substrate case 14, the inside of the rear space 50 becomes negative pressure, and outside air is sucked from the rear intake port 7 a and the front intake port 7 b communicating with the rear space 50.

  Reference numeral 7 denotes an intake port for sucking outside air into the main body 2, and a rear intake port 7 a, which is one intake port 7 for sucking outside air by driving the blower fan 12, is provided on the right side of the back surface portion 2 b of the main body 2. The rear intake port 7a is provided with fine ventilation holes by punching holes across the vertical part 2b1 and the inclined part 2b2 of the back surface part 2b, and is provided closer to the rear than the suction part 12a of the blower fan 12. The air inside the kitchen cabinet 1 is sucked from the rear air inlet 7a. Further, the other intake port 7 is a front intake port 7 b provided in the operation unit case 17 on the front side of the main body 2. Details of the front intake port 7b will be described later.

  Reference numeral 8 denotes an exhaust port for discharging the air blown by the blower fan 12 from the inside of the main body 2. A right exhaust port 8a and a left exhaust port 8b are provided on the upper surface of the plate frame 20 above and behind the control circuit 150 of the main body 2 and behind the plate 3. Waste heat after cooling the heating coil 11 and the electronic components of the control circuit 150 which are heat generating components is discharged upward from the exhaust port 8 of the plate frame 20 behind the plate 3 provided in the main body 2. Waste heat of the oven 4 is also discharged from the left exhaust port 8b.

  Reference numeral 16 denotes a radiating fin, which is attached to an electronic component that generates heat and efficiently exchanges heat with the air blown from the blower fan 12. A board case 14 covers the control board 13 and the inverter board 15 and efficiently sends the air blown from the blower fan 12 to the control board 13 and the inverter board 15.

  Further, in FIG. 8 showing a cross section viewed from the front side of the main body 2 by cutting the substrate case 14 behind the operation unit case 17, the bottom surface 14 a of the substrate case 14, the bottom surface 2 a of the main body 2, and the bottom surface of the substrate case 14. In order to provide a space between the outer side of 14a and the bottom surface 2a of the main body 2, a space passage 90 provided with two partition plates 14b separated is formed. The space passage 90 is an air passage that guides air sucked from the front intake port 7 b to the rear space 50.

  1 and 2 again, reference numeral 13 denotes a control board that controls the power supplied to the heating coil 11 and the heating unit (not shown) of the oven 4 to be described later in accordance with the set cooking conditions (heating power and heating time). Is.

  The oven 4 disposed on the left side of the front surface of the main body 2 is for baking an object to be heated such as fish, meat, pizza, and the opening is closed by a door 4a. Although the oven 4 is provided on the left side of the front surface of the main body 2 in this embodiment, it may be configured to be provided on the right side of the front surface. Ovens are sometimes called roasters and grills.

  Next to the oven 4, a front panel 18, a power switch 19, and an operation unit 5 that mainly sets cooking conditions for the oven 4 are provided below the front panel 18 and the power switch 19.

  Reference numeral 17 denotes an operation unit case, which is provided inside the front surface of the main body 2 so that the operation unit 5 can be stored when the operation unit 5 is closed.

  FIG. 1 shows a state where the operation unit 5 is opened, and FIG. 2 shows a state where the operation unit 5 is closed. Reference numeral 5a denotes an operation surface, which includes an operation means 21 (FIG. 7) for setting cooking conditions such as a heating power and a heating time for cooking the object to be heated, menu selection, and a display means 22 (FIG. 7) for displaying the set conditions. It is provided on the upper surface portion that is easy to operate from the user when the operation portion 5 is opened. Reference numeral 5b denotes an operation unit front panel, which is flush with the front panel 18 when the operation unit 5 is closed. 5 c is an operation unit right surface on the side surface of the operation unit 5, and 5 d is an operation unit left surface on the side surface of the operation unit 5.

  Next, the structure of the operation part 5 is demonstrated using FIG. 6, FIG.

  6 is a cross-sectional view when the operation unit 5 is closed on the operation unit case 17, and FIG. 7 is a cross-sectional view when the operation unit 5 is opened on the operation unit case 17. An operation means 21 is provided on the operation surface 5a and mainly sets conditions such as the heating power, the heating time, and the type of cooking when the oven 4 is cooked. Reference numeral 22 denotes a display means, which is provided on the operation surface 5a and displays cooking conditions (heating power, heating time, etc.) set by the operation means 21.

  A flat gear (not shown) is provided on the operation unit right surface 5c of the operation unit 5, and a gear of a rotary damper (not shown) provided on the operation unit case 17 meshes with the force to open the operation unit 5. On the other hand, the gear speed of the rotary damper is controlled to a constant speed so that the operation unit 5 is opened at a constant speed without suddenly opening. Reference numeral 31 denotes a hinge portion, and a plurality of hinges A 26 a (FIG. 4) provided at the front lower end 5 b 1 (FIG. 4) of the operation portion 5 and the operation portion case 17 so that the operation portion 5 can be opened and closed with respect to the operation portion case 17. The plurality of hinges B26b (FIG. 4) provided at the front lower end 17a (FIG. 4) are penetrated by the lot 25, and are rotatably supported by using the lot 25 as a fulcrum. Reference numeral 24 denotes a leaf spring, which constitutes a cantilever spring molded from a SUS spring material, and the fixed end side (I portion) is fixed to the operation portion case 17. The other free end (b) is pressed against the inside of the operation unit front panel 5b of the operation unit 5 in the opening direction of the operation unit 5, and when the operation unit 5 is closed, the leaf spring 24 is substantially L-shaped. Bend. When opening the operation unit 5, the operation unit 5 is opened by a restoring force that the leaf spring 24 tries to return to a straight line. Reference numeral 5f denotes a spring receiving portion that is a place where the free end of the leaf spring 24 pushes the inside of the operation portion front surface 5b while sliding the opening of the operation portion 5, and the leaf spring 24 always tries to return linearly. A force is applied. The fixed end of the leaf spring 24 is fixed to the operation unit case 17 so as to be above the lot 25 that rotatably supports the operation unit 5, and the free end is provided so as to push a position further above the fixed end. Thus, the restoring force of the leaf spring 24 is used as a large force when the operation unit 5 is opened. 27 is a latch, and a receiving portion 27a is provided on the operation portion case 17 side, and a convex portion 27b is provided on the operating portion 5, and the receiving portion 27a is a convex portion so as not to be opened by the restoring force of the leaf spring 24 after the operating portion 5 is closed. The cam 27 of the receiving part 27a is operated to release the convex part 27b by pushing the operating part 5 in the closing direction again while holding the cam 27b with the cam.

  Next, the front intake port 7b will be described with reference to FIGS.

  FIG. 3 is a perspective view of the operating unit case 17 on the front side of the main body 2 as viewed from below with the operating unit 5 closed. FIG. 4 is a perspective view showing a state where the operation unit 5 is closed on the operation unit case 17 in the same manner. FIG. 5 is a perspective view of the operation unit case 17.

  The operation unit case 17 is disposed in front of the bottom surface 2a of the main body 2, and the operation unit 5 in which the cover 30 is fitted and attached to the operation unit front panel 5b is accommodated. The cover 30 is mounted without drooping downward from the front lower end 5b1 (FIG. 4) of the operation unit 5. In this embodiment, the operation unit case 17 is arranged on the right side of the main body 2, and the blower fan 12 is similarly arranged on the right rear portion of the main body 2.

  On the right side of the bottom surface 2a of the main body 2, the reinforcing bead 2a1 has an outer shape that extends not in the width direction but in the depth direction in order to increase the cross-sectional area of the space passage 90 through which air flows through the blower fan 12 and reduce resistance. Are provided so as to have a convex shape.

  In FIG. 4, a front intake port 7 b having a plurality of crosspieces 7 c having a wide opening and a downward opening is provided on the back side of the hinge portion 31 of the operation unit case 17. The plurality of bars 7c prevent foreign matter such as paper dust and large trash and disposable chopsticks from being inserted and fingers from entering. Furthermore, the dust adhering to the front intake port 7b of the operation unit case 17 when viewed from the front of the kitchen cabinet 1 can be confirmed and cleaned.

  Since the hinge portion 31 is provided at the front lower end 5b1 of the operation portion 5 and the front lower end 17b of the operation portion case 17, the operation portion front panel 5b remains the hinge portion 31 even when the operation portion 5 is opened as shown in FIGS. Since the front intake port 7b does not hang downward, the front intake port 7b can secure intake without reducing the area of intake.

  In FIG. 5, the air sucked from the front intake port 7b of the operation unit case 17 is sucked from below and guided rearward by the R portion 17f and the upper surface portion 17d. As shown in FIG. 2, the air sucked from the front intake port 7b flows in the depth direction outside the operation unit case 17 through the communication port 17e (FIG. 6). The communication port 17e is connected to a space passage 90 communicating with the blower fan 12 formed by the bottom surface 14a of the substrate case 14 and the bottom surface 2a of the main body 2 below the control circuit 150. The space passage 90 sucks in the blower fan 12. It is connected to the part 12a.

  The position where the space passage 90 is provided is the place where the temperature rise is the smallest in the main body 2, and the temperature of the cooling air sucked from the front of the main body 2 is not heated unnecessarily to the rear space 50. It is possible to guide. Further, the cooling air is caused to flow along the bottom surface 14 a of the substrate case 14, so that the temperature rise in the substrate case 14 can be reduced. The space air passage 90 is configured to be surrounded by the bottom surface 14 a of the substrate case 14, the partition plate 14 b provided on the bottom surface 14 a of the substrate case 14, and the bottom surface 2 a of the main body 2. 2 so as not to leak directly into.

  The size of the communication port 17e is substantially the same as the entire width of the front intake port 17b, and is a rectangular hole formed from the lower end to the height of the upper surface portion 17d, and is an opening through which the intake air flows into the space passage 90 without stagnation. . Therefore, the air sucked from the front intake port 7b flows to the space passage 90 without always passing around the operation unit 5, so that the operation unit 5 can be kept clean.

  The present embodiment has the above configuration, and the operation will be described next.

  When cooking, the ventilator 200 is driven and exhausted. When the cooking pan 100 is placed on the plate 3 and induction heating is performed, the power is turned on with the power switch 19, and the operation is performed on the upper surface operation unit 9 while confirming the display on the upper surface display unit 10 to set the temperature and heating power. To start heating. When heating is started, the heating coil 11 is controlled by the control circuit 150 to heat the cooking pan 100.

  Further, the blower fan 12 rotates and sucks cooling air from the rear intake port 7a and the front intake port 7b. When the air sucked from the front air inlet 7b passes through the space passage 90 provided under the substrate case 14, the bottom surface 14a of the substrate case 14 whose temperature rise is originally low is cooled and stored in the substrate case 14. The temperature rise of the electronic components of the control circuit 150 is mitigated.

  In addition, the temperature of the air in the kitchen cabinet 1 sucked from the rear intake port 7a is somewhat increased by using the cooking device for a long time. However, by mixing the air in the kitchen cabinet 1 sucked from the rear intake port 7a and the air having a low temperature rise sucked from the front intake port 7b into the rear space where the suction portion 12a of the blower fan 12 is located, the rear intake air By lowering the temperature of the air in the kitchen cabinet 1 sucked from the opening 7a, air lower than the temperature of the air staying in the kitchen cabinet 1 is blown into the board case 14 by the blower fan 12, and the electronic component Then, the heating coil 11 and the like are cooled, and then exhausted from the exhaust port 8. The exhaust is smoothly exhausted to the ventilator 200 and ventilated by the ventilator 200. In this case, the operation unit 5 is generally used in a closed state.

  Next, the case where the oven 4 is used will be described. Put an object to be heated in the oven 4, open the operation unit 5, check the display means 22, set cooking conditions such as heating power, heating time, menu selection, etc. with the operation means 21, and start heating To operate. Since the flow of the cooling air after the start of heating is the same as described above, a detailed description thereof is omitted.

  When heating is started, the oven 4 is heated under the control of the control circuit 150. Also, the blower fan 12 rotates and sucks air from the rear intake port 7a and the front intake port 7b, cools the control circuit 150, exhausts the oven 4 and exhaust heat that cools the main body 2 is exhausted from the exhaust port 8. The The ventilator 200 is smoothly exhausted and ventilated by the ventilator 200. In this case, the operation unit 5 is generally used in an open state.

  As described above, according to the present embodiment, the board case 14 is cooled, and the air sucked from the kitchen cabinet 1 and the air having a low temperature rise sucked from the front of the main body 2 are mixed in the rear space. The temperature of the air sucked from inside 1 can be lowered, and the temperature of the cooling air blown into the main body 2 by the blower fan 12 can be lowered.

  Further, since the front intake port 7 b is provided behind the hinge portion 31 of the operation unit case 17 and the space passage 90 passing from the front intake port 7 b to the outside of the operation unit case 17 is provided, Since it does not always pass around, the operation unit 5 can be kept clean.

  Moreover, since the hinge part 31 was provided in the front lower end 5b1 of the operation part 5 and the front lower end 17b of the operation part case 17, even if the operation part 5 rotates and opens, the front inlet port 7b provided in the back of the hinge part 31 is provided. The lower part of the operation unit 5 does not cover the upper side of the air passage, and a passage to the front intake port 7b is secured.

DESCRIPTION OF SYMBOLS 1 Kitchen cabinet 2 Main body 2a, 14a Bottom surface 2b Back surface part 3 Plate 5 Operation part 5a Operation surface 5b1 Lower front surface 7 Air inlet 7a Rear air inlet 7b Front air inlet 8 Air outlet 11 Heating coil 12 Blower fan 12a Suction part 12b Air outlet 14 Substrate case 14b Partition plate 17 Operation unit case 17a Front lower end 20 Plate frame 21 Operation unit 22 Display unit 26 Hinge 27 Latch 31 Hinge unit 50 Back space 90 Space passage 100 Cooking pan 150 Control circuit 200 Ventilator

Claims (1)

The body,
Heating means for heating an object to be heated at the top of the main body;
A control circuit for controlling the heating means;
A board case disposed on a bottom surface of the body is provided at a two partition plates of the outer bottom surface accommodating a control circuit,
A blower fan disposed at the rear of the substrate case, provided with a blowout portion for blowing cooling air to the control circuit in the substrate case and a suction portion for sucking air for the cooling air;
A rear intake opening that is opened in order to suck outside air into the rear part of the back of the main body;
A front intake port that is open to suck outside air into the front side of the main body;
A rear space in which a space between the suction portion of the blower fan, the rear intake port, and the front intake port is communicated;
A space passage is provided in the main body and below the substrate case to guide the air sucked from the front intake port to the rear space, and the space passage includes the bottom surface of the substrate case, the bottom surface of the main body, and the bottom surface of the main body. Surrounded by two partition plates outside the bottom of the board case ,
A cooking device according to claim 1, wherein a plurality of crosspieces are provided at the opening of the front intake port .