JP2005172388A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker for suppressing a decrease in a suction area by the adhesion of dust to a decorative plate and improving the cleaning properties of the decorative plate and the cooling efficiency of a door. <P>SOLUTION: The heating cooker comprises a body 1, having a heating chamber 3, a magnetron 19, a fan 18, and the like; and a door 5 that is provided at the front opening of the heating chamber 3 so that the door 5 can be opened or closed freely. The body 1 is fixed to an accommodation space exclusive for an accommodation box 11, the decorative plate 7 for hiding the gap between the body 1 and the accommodation box 11 is mounted to the front section of the body 1, and the fresh air is sucked into the body 1 by a fan 18 from inlets 9, 10 provided at the decorative plate 7. The periphery of the decorative plate 7 has a U-shaped section, and the first and second inlets 9, 10 are provided on the upper and lower surfaces, respectively, of a part positioned at the upper portion of an upper end face 5a of a door 5 in the peripheral sections. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a so-called built-in type cooking device.

  FIG. 6 shows a perspective view of an example of a conventional cooking device. This cooking device is designed as a so-called built-in type that is incorporated as a unit in a dedicated storage box called a cupboard, and includes a heating chamber, a heat source generator (magnetron and / or heater), a fan, etc. A main body 1, an intake duct 8 disposed in close contact with the main body 1, and a door 5 that can be freely opened and closed at the front opening of the heating chamber are provided. A decorative board 7 is attached to hide the gap. The cup board 11 is provided with a shelf for storing tableware, seasonings and the like above (or in some cases below) the storage space of the cooking device. A hinged door 22 is provided on the front surface of the shelf.

The decorative plate 7 is attached to the cup board 11 before installation by installing the metal fitting for installation (fixed by screwing or the like), and the decorative plate 7 is attached to the metal fitting, and the decorative plate 7 is attached to the cup board 11 from the front. There is a type to stop and fix. In both types, air supply / exhaust is normally performed by the intake port 9 and the exhaust port 13 provided with louvers provided on the front surface of the decorative plate 7. Note that the decorative board 7 also serves as an operation unit and a display unit. For example, Patent Document 1 describes an integrated body 1 and operation unit.
JP 2000-164332 A (paragraph 0020, FIG. 1)

  However, since the air inlet 9 is on the front surface of the decorative plate 7, there is a problem that dust accumulates in the louvers in the installed state (not in operation), thereby reducing the air intake area. In addition, since the louver is on the front surface, the front surface of the decorative plate 7 has a distorted shape with unevenness, and there is a problem that the cleaning property is poor. Moreover, in the case of the cooking device with a heater, there existed a problem that the temperature of the door 5 became very hot and the door component deform | transformed with heat.

  The present invention has been made in view of the above-described problems, and suppresses a reduction in the intake area due to dust adhering to the decorative plate, thereby improving the cleaning property of the decorative plate and improving the cooling efficiency of the door. The purpose is to provide a cooker.

  In order to achieve the above object, the present invention comprises a main body provided with a heating chamber, a heat source generator, a fan, and the like, and a door provided openably and closably at the front opening of the heating chamber, and a dedicated storage space for the storage box In a heating cooker in which the main body is fixed, a decorative plate is attached to the front of the main body to hide the gap between the main body and the storage box, and the outside air is sucked into the main body by the fan from the air inlet provided in the decorative plate The intake port is arranged on a side surface of the decorative board. According to this configuration, since the air inlet is not provided on the front surface of the decorative plate, a louver is not required on the front surface of the decorative plate, and it is possible to prevent a reduction in intake efficiency and cleaning performance due to adhesion of dust to the louver.

  The shape of the peripheral portion of the decorative plate is a U-shaped cross section, and the first intake port is formed on the upper surface of the portion located above the upper end surface of the door, and the second intake port is formed on the lower surface. Each can be provided. According to this, the intake area is ensured, and the outside air sucked from the second intake port forms a flow along the front surface of the door. Therefore, a door that becomes hot during operation can be efficiently cooled by this air flow.

  Further, when the storage box is provided with a shelf with a hinged door at the upper or lower tier of the accommodation space, the lower end surface of the upper foldable door or the lower hinged door is provided on the upper end surface or the lower end surface of the decorative plate. By providing a rib having a predetermined height that comes into contact with the upper end surface, a gap can be secured between the decorative plate and the hinged door, and the intake air amount can be ensured together with the positioning of the decorative plate.

  According to the present invention, a louver is not required on the front surface of the decorative board, and a reduction in intake efficiency due to adhesion of dust to the louver can be prevented. In addition, since the unevenness on the front surface of the decorative plate is reduced, not only the appearance is refreshed, but also the decorative plate can be easily wiped off and the cleaning property is improved. In addition, since the outside air flowing in from the second air inlet forms a flow along the front surface of the door, the door that becomes hot during operation can be efficiently cooled, and deformation of the door components due to heat can be prevented. Can do.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a heating cooker according to the present invention, and FIG. 2 is a perspective view showing an example of attachment to a cup board 11. As shown in FIG. 1, inside the main body 1 of the heating cooker, a machine room 2 is formed on the right side as viewed from the front, and a heating room 3 is formed on the left side. The machine room 2 and the heating chamber 3 are partitioned by a partition wall 4. An openable / closable door 5 is provided at the front opening of the heating chamber 3. An L-shaped intake duct 8 is disposed in close contact with the back surface of the main body 1. Inside the machine room 2, mechanical parts such as a fan 18, a magnetron 19 and a transformer 20 and electrical parts such as an electronic unit (not shown) are arranged.

  As shown in FIG. 2, the main body 1 is fixed at a predetermined position in the accommodation space 23 of the cup board 11. A decorative plate 7 is provided on the front surface of the main body 1 in order to hide the gap between the main body 1 and the cup board 11. The decorative board 7 is attached to the front surface 11a of the cup board 11 so as to have a gap 6 that communicates with the outside air around the door 5. An exhaust port 13 having a louver (not shown) is provided at the front lower end of the decorative plate 7. In addition, exhaust is not necessarily limited to what is performed from the exhaust port 13 provided in the decoration board 7. For example, a chimney may be provided on the back surface of the main body 1 to exhaust air from behind the cup board 11.

  4 is a cross-sectional view taken along the line yy of FIG. As shown in FIG. 4, the decorative plate 7 is formed in a U-shaped cross section so as to have a cavity 12 inside, and at the inner rear end 7 a around the opening of the cavity 12, The outer rear end 7b is attached to the cup board 11 so as to come into contact with the surrounding main body 1. The decorative plate 7 is attached by sandwiching a bent piece 8 a formed by bending a front upper end portion of the intake duct 8 at a right angle with the front surface 11 a of the cup board 11, and fixes the intake duct 8 to the cup board 11. It also plays a role. A plurality of air inlets 9 and 10 communicating with the cavity 12 are arranged in a row in the decorative plate 7 on the upper surface and the lower surface of the portion located above the upper end surface 5a of the door 5, respectively. The intake ports 9 and 10 may be provided as a single horizontally long opening provided with a louver.

  3 is a cross-sectional view taken along line xx of FIG. As shown in FIGS. 1 and 3, on the back surface of the machine room 2, a vent hole 14 including a plurality of small holes that communicates from the inside of the intake duct 8 to the inside of the machine room 2 is provided by punching or the like. The partition wall 4 is provided with a vent 15 that leads from the inside of the machine chamber 2 to the inside of the heating chamber 3. Further, a ventilation port 16 that communicates with an exhaust duct 17 formed in the main body 1 is provided on the side wall of the heating chamber 3 on the wall surface 3 a facing the partition wall 4. The exhaust duct 17 communicates with the outside air through the exhaust port 13 on the front surface of the decorative board 7. Therefore, when the fan 18 is driven, a ventilation flow path indicated by an arrow is formed, and the outside air flowing from the intake ports 9 and 10 passes through the cavity 12, the intake duct 8, the machine room 2, the heating chamber 3, and the exhaust duct 17. The gas is discharged from the exhaust port 13. At this time, the magnetron 19 and the transformer 20 inside the machine room 2 can be cooled.

  According to the above configuration, since the air inlets 9 and 10 are formed on the peripheral wall surface (side surface) of the decorative plate 7, no louver is required on the front surface of the decorative plate 7, and a reduction in the intake efficiency due to dust adhering to the louver is prevented. can do. In particular, the outside air flowing in from the lower intake port 10 forms a flow along the front surface of the door 5 as shown by an arrow A in FIGS. The door can be cooled and deformation of the door component due to heat can be prevented. Further, since the protrusions such as louvers are reduced on the front surface of the decorative plate 7, not only the appearance is refreshed, but also the decorative plate can be easily wiped off and the cleaning property is improved. In addition, when cleaning the surface of the decorative board 7 hidden behind the shelf door 22 of the shelf, as shown in FIG.

  In addition, as shown in FIG. 5, if a rib 21 having a predetermined height that contacts the lower end surface of the upper door 22 or the upper end surface of the lower door 22 is provided on the upper end surface and the lower end surface of the decorative plate 7, A gap can be secured between the plate 7 and the hinged door 22, and the intake amount can be secured together with the positioning of the decorative plate 7.

These are the perspective views of an example of the cooking-by-heating machine concerning the present invention. These are perspective views which show the example of attachment to the cup board of a heating cooker same as the above. FIG. 2 is a cross-sectional view taken along line xx of FIG. 1. FIG. 2 is a cross-sectional view taken along line yy in FIG. 1. These are the perspective views of other examples of a heating cooker same as the above. These are perspective views of an example of the conventional cooking-by-heating machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Machine room 3 Heating chamber 4 Partition wall 5 Door 6 Gap 7 Decorative plate 8 Intake duct 9, 10 Intake port 11 Cup board 13 Exhaust port 18 Fan 19 Magnetron 20 Transformer 21 Rib 22 Open door

Claims (3)

  The main body is equipped with a heating chamber, a heat source generator, a fan, and the like, and a door that can be opened and closed at the front opening of the heating chamber. In a heating cooker in which a decorative plate is attached to conceal the gap between the storage box and the outside air is sucked into the main body by a fan from the intake port provided on the decorative plate, the intake port is on the side of the decorative plate A cooking device characterized by being arranged.   A peripheral portion of the decorative plate is U-shaped in cross section, and a first intake port is provided on the upper surface of a portion located above the upper end surface of the door, and a second intake port is provided on the lower surface. The cooking device according to claim 1, wherein:   The storage box includes a shelf with a hinged door at the upper or lower tier of the accommodation space, and is in contact with the lower end surface of the upper hinged door or the upper edge surface of the lower hinged door on the upper end surface or lower end surface of the decorative plate. The heating cooker according to claim 1, wherein a rib having a height of 5 is provided.

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