JP2010019529A - Drawer type heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drawer type heating cooker capable of facilitating observation of the inside of a heated object storage part from outside through a door glass by preventing steam generated from an object to be cooked during heating from coming into contact with the inner surface of a door due to a descending air flow flowing along the inner surface of the door. <P>SOLUTION: During the heating operation of the heating cooker, outside air sucked from a front surface lower part of a cooker body 1 and delivered into a heating chamber 3 by the operation of a transverse-flow fan 13 passes through a gap passage 18 between a ceiling 16 and a splash cover 17 from a back surface upper part of the heating chamber 3, and is made to flow as a descending air flow F6 along the inner surface of the door glass 10 of the door 2a. The descending air flow F6 is discharged from an exhaust part 33 of the cooker body 1 through an exhaust window part 21 formed at the front end of the heated object storage part 2b. Steam generated from an object to be heated during cooking is not brought into contact with the door glass 10 due to the air curtain effect of the descending air flow F6, and thus, does not condense and adhere to fog the door glass 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drawer-type heating cooker in which a heated object storage unit can be pulled out by operating an opening / closing door from a heating chamber formed in a main body of the cooking device.

  FIG. 6 is a perspective view of a drawer-type heating cooker equivalent to that proposed by the present applicant. A heating chamber 3 for cooking a cooked product (heated product) is formed in the cooker body 1. The drawer body 2 includes an open / close door (hereinafter abbreviated as “door”) 2 a for opening and closing the heating chamber 3 and a heated object storage portion 2 b having a container-like shape on which a food item can be placed. The drawer body 2 is slidably arranged in the cooker body 1 by the slide mechanism 4, and can be pulled out from the heating chamber 3 of the cooker body 1 to the near side or pulled into the heating chamber 3. The slide mechanism 4 is disposed at least on the left and right outer sides of the heating chamber 3, but can also be disposed on the lower side. Since the slide mechanism 4 is provided outside the heating chamber 3, the inside of the heating chamber 3 can be widely used for the heated object storage portion 2 b and can be used as a movable rail or a fixed rail for constituting the slide mechanism 4. There is no need to use expensive parts or materials having high heat resistance and flame retardancy, and there is no possibility of being affected by microwaves radiated into the heating chamber 3 and there is no fear of discharge by microwaves. The door 2a is fitted with a metal mesh door glass 10 as a transparent plate for blocking microwaves so that the inside of the heating chamber 2 can be viewed from the outside in the closed state.

  Although not shown in detail, the slide mechanism 4 is composed of a fixed rail fixed to the cooker main body 1 side and a movable rail attached to the door 2a and sliding along the fixed rail. It is slidably supported by the cooker body 1 through the slide mechanism 4 from the door 2a. In order to drive the slide mechanism 4, for example, a DC motor is provided as a drive mechanism. Although not shown in detail, a pinion that rotates in response to the rotation output of the DC motor is engaged with and engaged with a rack that is attached to the movable rail, and the rack moves linearly by the rotation of the pinion. 2 is automatically driven via the slide mechanism 4. The automatic taking in / out of the drawer body 2 is particularly suitable for a large-sized heating cooker.

  The heated object storage part 2b has a side wall on the left and right sides, and a rear wall on the back side arranged in the heating chamber 3 of the cooker body 1, and the upper part is an opening for taking in and out the food. It has become. The door 2a is attached to the front side of the heated object accommodating portion 2b. When the drawer body 2 is drawn into the heating chamber 3 and the door 2a closes the opening 3a of the heating chamber 3, the internal space of the heating chamber 3 becomes a sealed space by the inner wall surface of the cooker body 1 and the door 2a. Leakage of waves to the outside can be prevented. In addition, the operation part 9 for a user to perform opening / closing operation is provided in the cooking appliance main body 1 side upper part, Although not shown in detail in the operation part 9, an operation button, a control part, or operation content etc. are displayed. A display unit 5 is provided.

  As an example of built-in type kitchen equipment, the present applicant has already consolidated the intake and exhaust sections, improved the efficiency of intake and exhaust, efficiently cooled electric parts and exhausted inside the cabinet, and A built-in kitchen device that can ease design and arrangement constraints has been proposed (see Patent Document 1). This kitchen device is a drawer-type heating cooker such as a microwave oven that can pull out the heating chamber to the front side, and in order to save the space of the cooling air supply / exhaust unit, the intake unit and the exhaust unit are provided in the intake unit. The suction port and the exhaust port of the exhaust unit are gathered on one side of the upper, lower, left and right sides of the kitchen equipment body with the front side facing toward the front. In addition, by separating the intake and exhaust sections on one side, mixing each other is avoided, improving the efficiency of intake and exhaust, improving the efficiency of cooling of electrical components and exhaust in the cabinet, and It aims to increase the degree of freedom of design and arrangement.

  In this kitchen appliance, a cooling fan motor is provided at the back of the heater body, and when the cooling fan motor is activated, a part of the outside air taken from the front of the heater body is micronized from the cooling fan motor. The remaining part of the magnetron, which is a wave generator, is blown to a high voltage transformer, which is a high voltage generator for the magnetron, to cool each of them. The airflow that air-cooled the magnetron flows into the heating chamber from the back side, and the air that flows into the heating chamber contains water vapor that is generated when the food is heated, and moves upward in the heating chamber to cook. It flows into the horizontal duct above the vessel body 1. The horizontal duct is directed rearward at the ceiling of the heating chamber, further descends and reaches the lower rear surface of the heater body, then moves forward toward the bottom surface of the heater body, and is exhausted from the exhaust section at the lower front of the heater body. The

  In the drawer-type heating cooker, as described above, the intake air taken into the main body of the cooker is sent into the heating chamber from the back side of the interior of the cooking chamber, but the air flow containing water vapor generated from the food is placed forward by this intake air flow. Since it flows toward the inner surface of the door, the steam of the cooked product comes into contact with the door glass and is cooled, condenses and adheres as water droplets, and easily fogs the door glass. Therefore, it is very difficult to prevent fogging of the door glass unless the steam flow of such food is changed to prevent contact with the door glass.

In general, in a cooking device such as a microwave oven, the intake structure into the cooking appliance is performed from either the left or right side. When the intake in the chamber is performed from either the left or right side of the heating chamber, it is possible to create an air flow parallel to the door glass. It can be made into the structure which is hard to touch a door glass. However, in the drawer-type heating cooker in which the drawer moving mechanism and the drive mechanism are accommodated on the left and right sides of the heating chamber, there is a problem that intake from the left or right of the heating chamber is extremely difficult.
JP 2008-8547 A

  Therefore, in a drawer-type heating cooker that feeds intake air into the heating chamber from the back side of the interior, by making this intake air flow parallel to the door glass, it becomes an air curtain against the steam of the cooked food There is a problem to be solved in that it prevents the steam of the cooked food from contacting the door glass and being cooled to condense and adhere as water droplets.

  The object of the present invention is to prevent the steam of the cooked food from contacting the inner surface of the door and being cooled by the air curtain action of the flow of the outside air flowing along the inner surface of the door, thereby preventing condensation and adhesion as water droplets. An object of the present invention is to provide a drawer-type heating cooker that can easily observe the inside of the heated object storage section from the outside through the door glass even when the heated object being cooked is cooked and water vapor is generated.

  In order to solve the above-described problems, a drawer-type heating cooker according to the present invention is capable of being drawn out and drawn into the cooking chamber main body in which a heating chamber that opens at the front is formed inside, and the heating chamber of the cooking appliance main body. A drawer body; and a slide mechanism that slidably supports the drawer body on the cooker body outside the heating chamber. The drawer body is placed in the heating chamber in a state where a heated object is placed and retracted. And a transparent plate attached to the front end of the heated object storage part and capable of closing the opening of the heating chamber and looking into the heated object storage part in the retracted state. A drawer-type heating cooker having a door provided with an airflow sent from the back of the heating chamber into the heating chamber as a descending airflow along the inner surface of the transparent plate of the door, This The downward air flow is discharged from the exhaust part opened at the front end of the cooker body through the exhaust window formed at the front end part of the heated object storage part together with water vapor generated by heating the heated object. .

According to this drawer-type heating cooker, the drawer body that can be drawn / drawn into the heating chamber of the cooker body that forms a heating chamber in the front thereof includes a heated object storage section that can store a heated object, and the heating A door that is attached to and integrated with the front end of the object storage unit. In the retracted state of the drawer body, the heated object storage portion is stored in the heating chamber, and the door can close the opening of the heating chamber.
The drawer body is slidably supported on the cooker body by a slide mechanism provided outside the heating chamber. The heating operation of the cooker is performed with the drawer body in the retracted state, but the outside air sent from the upper back of the heating chamber flows as a descending airflow along the inner surface of the door glass, and the air flows against the water vapor flow. It acts to block off like a curtain, and is discharged from the exhaust part that opens to the front end of the cooker body through the exhaust window formed at the front end part of the heated object storage part together with water vapor generated from the heated object. The water vapor generated by heating the heated object does not have an opportunity to touch the transparent plate, and therefore, the water vapor is cooled by contacting the transparent plate and does not condense and adhere as water droplets.

  This drawer-type heating cooker includes a splash cover that is disposed with a gap between the heating chamber and the ceiling wall of the heating chamber, so that the air flow can be guided to the upper inside portion of the door through the gap. The outside air sent from the upper back to the heating chamber becomes an air flow toward the front of the heater body through a gap formed between the top surface of the splash cover and the top surface of the heating chamber, and further from the front end of the splash cover to the inner surface of the door glass. It flows as a downdraft along.

  In the drawer-type heating cooker provided with the splash cover, when the drawer body occupies the retracted state, the front end of the splash cover occupies a position close to the inner surface of the door, and between the inner surface of the door A gap can be formed for the downdraft to flow down. Since the front end of the splash cover can be positioned close to the door, the airflow sent into the heating chamber is reliably transferred from the gap formed between the front end of the splash cover and the inner surface of the door. It can flow as a downdraft along the inner surface.

  In the drawer-type heating cooker, the exhaust window portion includes a standing wall that stands up from an edge portion of the exhaust window formed at the front end portion of the heated object storage portion in order to guide the passage of the descending airflow. Can do. An exhaust window for exhausting the downdraft is formed at the front end of the heated object container, but it is desirable that the downdraft containing water vapor is smoothly discharged through the exhaust window, and the food (heating It is preferable that moisture does not flow out of the exhaust window when the material overflows into the heating chamber. Such a request can be met by providing the heated object accommodating portion with an upstanding wall that rises from the edge of the exhaust window.

  In this drawer-type heating cooker, the exhaust part of the cooker body is formed at the position of the bottom part of the cooker body facing the exhaust window part of the drawer in the retracted state. And an exhaust outlet that is connected to the exhaust inlet and opens at the front end of the cooker body. The downdraft flowing through the exhaust window portion of the drawer flows into the exhaust inlet portion formed at the bottom of the cooker body facing the exhaust window portion, and from the exhaust outlet portion at the front end of the cooker body. Exhausted to the side.

  Since the drawer-type heating cooker according to the present invention is configured as described above, the drawer-type heating cooker is unique to a large-sized heating cooker in which the drawer body is slid by the slide mechanism with respect to the cooker body outside the heating chamber. In cooking equipment where the intake air in the cabinet is taken from the back of the cabinet due to conditions, etc., regardless of the container shape of the food, the intake air in the cabinet is used as a downward air flow along the transparent plate, and the steam generated from the cook is It can block and can prevent fogging of the transparent plate during cooking. In addition, when using a splash cover that is installed in cooking equipment and facilitates cleaning of the inside of the cooking cabinet, a function that guides the intake air to the downflow to the splash cover and prevents fogging of the transparent plate during cooking. Can be given. In other words, using a splash cover for easy cleaning, it is possible to make the flow of air supplied from the back of the cabinet toward the inner surface of the transparent plate, so a new exhaust duct is provided. The manufacturing cost of the drawer-type heating cooker can be suppressed without requiring additional parts.

  Hereinafter, an embodiment of a drawer type cooking device according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is an explanatory view for explaining the flow of airflow in the longitudinal section of the drawer-type heating cooker, FIG. 2 is an explanatory view for explaining the flow of airflow in the transverse section of the drawer-type heating cooker shown in FIG. 4 is a front view of the drawer-type heating cooker shown in FIG. 1, FIG. 4 is a schematic side view of the drawer body of the drawer-type heating cooker shown in FIG. 1, and FIG. 5 is a schematic plan view of the drawer body shown in FIG. In addition, since the structure of a heating cooker may be equivalent to what was shown as a conventional heating cooker in FIG. 6 except regarding an exhaust flow, description here is abbreviate | omitted.

  In the drawer-type heating cooker according to the present invention, as shown in FIG. 3 in particular, an intake / exhaust grill is provided at the lower front portion of the cooker body 1, and intake portions 31, 32 disposed on both sides in the width direction are provided. And an exhaust portion 33 provided between the intake portions 31 and 32. As shown in FIGS. 1 and 2, the intake portions 31 and 32 include intake ducts 34 and 35 that extend to the farthest direction in the front-rear direction of the cooker body 1. The outside air sucked through the intake portions 31 and 32 flows through the intake ducts 34 and 35 and is sent to the rear space 11 of the cooker body 1. Details of the exhaust unit 33 will be described later.

  In the space 11 behind the heating chamber 3 of the cooker body 1, there are a high voltage transformer 12 that generates a high voltage, a cross-flow fan 13, and a magnetron 14 that generates microwaves based on the high voltage from the high voltage transformer 12. They are arranged in order from bottom to top. A waveguide 15 connected to the magnetron 14 and guiding the microwave extends to the ceiling 16 of the cooker body 1.

  A splash cover 17 is provided in the upper part of the heating chamber 3, that is, in the vicinity of the ceiling portion 16 of the cooker body 1 to facilitate the cleaning of the interior. The splash cover 17 has a size corresponding to substantially the entire wall surface 16a of the ceiling portion 16, and is provided at a predetermined distance from the wall surface 16a of the ceiling portion 16. Therefore, a gap passage 18 is formed between the ceiling wall surface 16 a and the upper surface 17 a of the splash cover 17. The splash cover 17 extends to the vicinity of the inner side surface of the door 2a, and a gap 19 is formed between the front end 17b of the splash cover 17 and the inner side surface of the door 2a. The air flow that passes through the magnetron 14 and is fed into the heating chamber 3 from the back of the heating chamber flows toward the front of the cooker body 1 through the gap passage 18 and changes direction when blocked by the door 2a. The airflow that flows through the gap 19 and flows through the gap 19 becomes a downward airflow that goes downward along the inner surface of the door 2 a in the heating chamber 3.

  An exhaust window portion 21 is provided in front of the bottom portion 20 of the drawer body 2, that is, at a front end portion of the heated object storage portion 2 b and directly opposite to the gap 19 in order to exhaust the downdraft from the gap 19. Is provided. Exhaust window portion 21 extends over most of the width of bottom portion 20 except for both end portions that serve as connecting portions for connecting heated object accommodating portion 2b to door 2a. An exhaust window 22 penetrating through is formed. Compared to the conventional structure in which the bottom surface of the drawer body 2 is closed due to the reduced width of the connecting portion compared to the width of the bottom portion 20, the coupling strength between the door 2a and the heated object accommodating portion 2b is increased. It is preferable to improve the bonding strength (width and height dimensions and the strength of the fitting) at the connecting portion so as not to decrease. The exhaust window portion 21 may be formed between the inner side surface of the door 2 a by cutting out the front end portion of the bottom plate constituting the bottom portion 20. In the exhaust window portion 21, a standing wall 23 is provided at the window edge portion of the exhaust window 22 so as to rise upward toward the inside of the heated object storage portion. The standing wall 23 has a function of efficiently guiding the passage of the downdraft and smoothly discharging the downdraft containing water vapor through the exhaust window 21. Further, by providing the standing wall 23, it is possible to prevent moisture from flowing out from the exhaust window 22 when the food (heated material) overflows into the heating chamber 3.

  The main body bottom 25 of the cooker body 1 is provided with an exhaust port 26 at a position corresponding to the exhaust window 21 provided on the bottom 20 of the drawer 2 when the drawer 2 is retracted. That is, the exhaust port portion 26 is formed with an exhaust inlet facing the exhaust window 22 in a state in which the drawer body 2 is drawn into the heating chamber 3. An exhaust duct 36 is provided which is connected from an exhaust port 26 provided at the bottom 20 of the heating chamber 3 to an exhaust 33 at the lower front of the cooker body 1. The exhaust duct 36 is an exhaust path formed by being bent in the main body bottom portion 25 and having an outlet opened to the outside air, and can release an air flow including water vapor flowing into the exhaust port portion 26 to the outside air.

  According to the above configuration, when the drawer body 2 is drawn into the cooker body 1, the heating chamber 3 is closed by the door 2 a and the cooker is operated, the interrupted blower fan 13 is driven and the front surface of the cooker body 1 is driven. The cooling airflows F1 and F1 sucked from the intake portions 31 and 32 provided in the lower portions become flows F2 and F2 through the intake ducts 34 and 35 formed in the bottom portion of the cooker body 1. It is sent to the rear, and flows F3 and F3 that change the upward direction from the innermost part of the intake ducts 34 and 35 to the rear space 11. The cooling air F3 cools the high-pressure transformer 12 by passing through the high-pressure transformer 12 disposed below before being sucked into the cross-flow fan 13. The airflow F <b> 4 sent out from the cross flow fan 13 cools the magnetron 14 by passing through the magnetron 14 disposed above the airflow F <b> 4. Therefore, the airflow sent into the heating chamber 3 receives a certain amount of heat when passing through the high-pressure transformer 12 and the magnetron 14, and becomes a high-temperature and dry airflow.

  The airflow sent from the back surface to the heating chamber 3 flows forward through the gap passage 18 between the ceiling wall surface 16a and the upper surface 17a of the splash cover 17 as an airflow F5. The airflow F5 flows as a descending airflow F6 along the inner surface of the door 2a through the gap 19 formed between the front end 17b of the splash cover 17 and the inner surface of the door 2a. Since the downward air flow F6 flows along the door glass 10 as a transparent plate, it prevents the water vapor (flow Fs1) generated from the heated object during the cooking from coming into contact with the door glass.

  The descending air flow F6 along the inner surface of the door 2a entrains water vapor generated from the heated material, flows into the exhaust window 21 provided at the bottom 20 of the heated material accommodating portion 2b (water vapor flow Fs2), and further cooks. The exhaust outlet 26 provided in the main body bottom 25 of the cooker main body 1 is further passed through the exhaust duct 36 provided in the front surface of the cooker main body 1 to the exhaust flow F7 from the exhaust part 33 of the front lower grill of the heating cooker. Exhausted to the outside.

As described above, since the intake air is sucked from the upper back of the interior and the downdraft is maintained along the inner surface of the door 2a, the water vapor generated from the food (heated product) during cooking promotes the downdraft. Then, it flows out from the exhaust part 33 through the exhaust window part 21. The built-in type cooking device is compared with a cooking device installed on the countertop alone or an OTR (Over The Range) installation cooking device installed on the upper side of the gas range by wall mounting or hanging from the cupboard. However, there is less flexibility in the supply / exhaust passage structure and the need to supply / exhaust air from the supply / exhaust grill located below the front surface is increased. It is possible to evacuate the outside of the cooking chamber from the lower front of the cooking device by skillfully disposing the.
Further, since a descending airflow having an air curtain effect is interposed between the door 2a, water vapor generated from the heated material is prevented from condensing on the door glass 10 of the door 2a. As described above, the water vapor is cooled by contacting the door glass 10 and can be prevented from condensing and adhering as water droplets. The door glass 10 is not fogged, and the user of the heating cooker can The inside of the heated object storage portion 2b can be visually observed and inspected through the door glass 1 from the outside.
In addition, compared with the drawer-type heating cooker described in Patent Document 1, the exhaust path from the heating chamber is shortened and the bent portions are reduced, so that the ventilation load of the cooling fan motor is reduced. Since power consumption is reduced, it is preferable from the viewpoint of energy saving.

Explanatory drawing explaining the flow of an airflow in the longitudinal cross-section of a drawer type cooking-by-heating machine. Explanatory drawing explaining the flow of an airflow in the cross section of the drawer type cooking-by-heating machine shown in FIG. The front view of the drawer-type heating cooker shown in FIG. The side schematic diagram of the drawer body of the drawer type cooking-by-heating machine shown in FIG. FIG. 5 is a schematic plan view of the drawer body shown in FIG. 4. The schematic perspective view of the conventional drawer-type heating cooker.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooker main body 2 Drawer body 2a Opening / closing door (door) 2b Heated object accommodating part 3 Heating chamber 3a Opening part 4 Slide mechanism 5 Display part 9 Operation part 9a Operation button 10 Door glass (transparent plate) 11 Back space 12 High voltage transformer 13 Crossflow fan 14 Magnetron 15 Waveguide 16 Ceiling 16a Wall 17 Splash cover 17a Upper surface 17b Front end 18 Clearance passage 19 Gap 20 Bottom 21 Exhaust window 22 Exhaust window 23 Standing wall 25 Main body bottom 26 Exhaust port 31, 32 Intake Part 33 Exhaust part 34, 35 Intake duct 36 Exhaust duct F6 Downstream air flow Fs1, Fs2 Steam flow

Claims (5)

A cooker body in which a heating chamber that opens at an opening in the front is formed inside, a drawer body that can be drawn / drawn into the heating chamber of the cooker body, and the drawer body outside the heating chamber. And a slide mechanism that slidably supports,
The drawer body is mounted with a heated object receiving portion in which the heated object is placed and is accommodated in the heating chamber in the retracted state, and the opening portion of the heating chamber is attached to the front end of the heated object accommodating portion in the retracted state. A drawer-type heating cooker having a door with a transparent plate that can be closed and allows the inside of the heated object storage portion to be peeked,
The air flow sent into the heating chamber from the back of the heating chamber is a descending air flow along the inner surface of the transparent plate of the door, and the heated object is stored together with water vapor generated by heating the heated object. A drawer-type heating cooker, characterized in that it is discharged from an exhaust portion that opens at the front end of the cooker body through an exhaust window portion formed at the front end portion of the portion.   A splash cover disposed with a gap between the heating chamber and a ceiling wall of the heating chamber is provided, and the air flow is guided toward an upper inner side of the door through the gap. The drawer-type heating cooker as described.   When the drawer body occupies the retracted state, the front end of the splash cover occupies a position close to the inner surface of the door, and a gap is formed between the inner surface of the door for the descending airflow to flow down. The drawer-type heating cooker according to claim 2.   The exhaust window portion includes an upright wall that stands up from an edge portion of an exhaust window formed at the front end portion of the heated object accommodating portion in order to guide the passage of the descending airflow. The drawer type cooking device according to 1.   The exhaust part of the cooker body is connected to an exhaust inlet part formed at a position of the bottom part of the cooker body facing the exhaust window part of the drawer in the retracted state, and the exhaust inlet part. The drawer-type heating cooker according to claim 1, further comprising an exhaust outlet connected to the front end of the cooker body.

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