JP2010043753A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker efficiently exhausting smoke without providing a fan in an air line, simplifying structure and reducing cost. <P>SOLUTION: The cooker includes a grill 5 stored within a casing 1 of a cooker body; a smoke discharge duct 11 for discharging smoke from a heated object heated by the grill 5 to outside; and a smoke inducing device 12 having an axial flow fan inside, sucking air from a through-hole 9 provided in the casing 1 by rotation of the axial flow fan, sending the air to inside of the smoke discharge duct 11, discharging the air from an exhaust port 3 to outside, inducing smoke within a heating chamber 7 of the grill 5 by the air flow, and discharging the smoke to outside. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electromagnetic induction heating cooker, for example, and relates to a heating cooker having a grill provided with a deodorizing / smoke discharging device.

  In a conventional electromagnetic induction heating cooker, an exhaust duct is provided to discharge smoke inside the roaster to the outside when the roaster portion is used. This exhaust duct is forcibly exhausted by providing a sirocco fan or the like on the air path in order to improve the deodorization / smoke exhaust performance (see, for example, Patent Document 1).

JP 2001-208359 A (Page 4, FIGS. 1 to 5)

  In the conventional electromagnetic induction heating cooker described above, since the sirocco fan is provided on the air passage, the temperature becomes high, and the sirocco fan needs to be made of metal such as stainless steel in order to ensure heat resistance. In addition, in order to rotate a metal fan, a strong torque rake motor may be used. Therefore, there is a problem that the structure is inevitably complicated and the cost is significantly increased.

  The present invention has been made in order to solve the above-described problems, and can efficiently perform smoke exhaust without providing a fan on the air passage, and can simplify the structure and reduce the cost. The purpose is to provide.

  A heating cooker according to the present invention includes a grill housed in a casing of a cooker main body, a smoke exhaust duct that communicates with the grill and discharges smoke from an object to be heated heated by the grill to the outside. , Has a blower fan inside, sucks air from the through hole provided in the housing by rotation of the blower fan, sends it into the smoke exhaust duct, discharges it to the outside, and the air flow causes the smoke in the grill to be discharged It is equipped with a smoke attracting device that attracts and discharges to the outside.

  According to the present invention, by the rotation of the blower fan of the smoke attracting device, air is sucked from the through hole provided in the housing, sent into the smoke exhaust duct, discharged to the outside, and the flow of air in the grill Since the smoke is attracted and discharged to the outside, the heat resistance of the blower fan becomes unnecessary, so it is possible to use a commercially available resin blower fan instead of a metal fan. Simplification and low cost can be achieved.

FIG. 1 is a cross-sectional view showing a cooking device according to an embodiment of the present invention as viewed from the side, and FIG. 2 is a perspective view showing a smoke exhaust duct of a deodorizing / smoke discharging device of the cooking device according to the embodiment. 3 is a cross-sectional view and a top view showing the smoke attracting device of the deodorizing / smoke discharging device.
As shown in FIG. 1, the cooking device of the embodiment has a top plate 2 made of heat-resistant tempered glass attached to the upper part of the casing 1 of the cooking device body. The top plate 2 is provided with, for example, three heating portions that indicate the mounting position of a pan or a frying pan. Each heating unit faces two induction heating coils 4a housed in the casing 1, an induction heating coil 4b having a diameter smaller than that of the induction heating coil 4a, or a radiant heater. On the front end side of the top plate 2, an upper surface operation / display unit for displaying the operation of the grill 5 and the heating unit, the operation state, and the like is disposed, and on the rear end side, an exhaust port 3 is provided. Further, a door 6 of the grill 5 housed in the housing 1 is provided on the front side of the housing 1 so as to be openable and closable, and a front operation / display unit is disposed adjacent to the door 6. The front operation / display unit is provided with a power switch of the cooking device, a dial for adjusting the heating power of each heating unit, and the like.

  The grill 5 described above has a heating chamber 7 constituted by a metal casing having a front opening. An upper heater 8a is disposed above the heating chamber 7, and a lower heater 8b is disposed below the heating chamber 7. In addition, a deodorizing / smoke removing device 10 is provided on the rear surface of the grill 5 to remove smoke and odor generated during cooking of fish to be heated. The deodorization / smoke exhaust device 10 has a smoke exhaust duct 11 in which one end of the suction port 11a is joined to the rear surface of the casing of the grill 5 and the exhaust port 11b side is connected to the exhaust port 3 described above. A catalyst heater (for example, a sheathed heater) and a deodorizing catalyst (for example, a palladium catalyst) disposed inside, and a smoke attracting device 12 installed below the lower surface of the smoke exhaust duct 11 are provided.

  As shown in FIG. 2, the smoke exhaust duct 11 has a three-dimensional shape that is substantially L-shaped and is made of sheet metal. The lower surface 11c extends horizontally in the central axis direction of the suction port 11a and is bent with an obtuse angle upward, and the upper surface 11d is inclined upward as it extends in the same central axis direction. Like the lower surface 11c, it is bent with an obtuse angle upward so as to be smaller than the suction port 11a. Further, a triangular ventilation port 11e is provided on the lower surface 11c of the smoke exhaust duct 11 on the exhaust port 11b side.

  As shown in FIG. 3, the smoke attracting device 12 is, for example, a case 12 a formed integrally with a resin material and having a substantially S-shaped air passage (indicated by an arrow) formed therein, and a wind of the case 12 a. An axial fan 13 (blower fan) fitted with an anti-vibration member (not shown) interposed in the middle of the road and a spacer 12d made of sheet metal are provided. The inlet of the air passage of the case 12a is formed in a quadrilateral shape (hereinafter referred to as “air suction port 12b”), and the outlet of the air passage of the case 12a is formed in a quadrilateral shape (hereinafter referred to as “opening”). Part 12c "). The case 12a is fixed to the bottom of the housing 1 by mounting portions 12k provided outside the both side walls on the air suction port 12b side. In this case, the center of the air suction port 12b of the case 12a and the center of the through hole 9 provided in the bottom of the housing 1 are on substantially the same axis. The aforementioned axial fan 13 is a commercially available fan motor, and a DC motor is used.

  Further, a plate-like water outflow prevention wall portion 12f and a groove portion 12i extending in the width direction of the case 12a are provided at the bottom portion on the lower side of the opening portion 12c side of the case 12a. 12j is provided. Furthermore, convex ribs 12g are formed on both side walls of the case 12a on the opening 12c side so as to be recessed outward from the inside. Air-induced holes 12h are provided on the surface of the convex rib 12g on the grill 5 side. The air induction hole 12h is a hole for sucking air in the casing 1 heated by heat generated from the induction heating coils 4a and 4b, the grill 5, and the circuit board when the heating cooker is used.

  Further, on both side walls of the case 12a on the opening 12c side, support piece portions 12m for supporting the spacer 12d covering the opening 12c are provided. The spacer 12d is provided with a triangular vent 12e having the same size as the vent 11e provided on the lower surface 11c of the smoke exhaust duct 11. When the smoke exhaust duct 11 is placed on the spacer 12d and installed at a predetermined position, both the vent holes 11e and 12e face each other. In FIG. 3B, as the shape of the vents 11e and 12e goes from the near side to the ridge, one side is inclined closer to the other side and becomes smaller. The rotational direction of the axial fan 13 (grill (Counterclockwise when viewed from 5 side). That is, it is for passing the air volume from the axial fan rotating in that direction efficiently without variation. The smoke exhaust duct 11 is fixed on the spacer 12d with an adhesive.

  When hot water or the like that has overflowed from the pan when using the heating cooker, or when a large amount of water flows into the exhaust port 3 for some reason, it flows into the case 12 from the smoke exhaust duct 11 through the ventilation ports 11e and 12e. The drainage hole 12j provided in the case 12 is drained into the housing 1, and the outflow to the axial fan 13 is prevented by the water outflow prevention wall portion 12f in the case 12. In addition, the water which flowed in the housing | casing 1 flows into the recess for storage provided in the bottom part of the housing | casing 1, and is dried naturally.

Next, an operation when the smoke in the grill is discharged to the outside in the cooking device configured as described above will be described.
When the grill 5 is used, for example, when the deodorizing catalyst becomes a predetermined high temperature by the catalyst heater of the deodorizing / smoke discharging device 10, the axial fan 13 of the smoke attracting device 12 rotates. By the rotation of the axial fan 13, air flows from the through hole 9 of the housing 1 and the air suction port 12 b below the case 12 and flows into the air passage in the case 12. The air guided to the air passage passes through the triangular air vent 12e provided in the spacer 12d at the upper part of the case 12 and the triangular air vent 11e provided in the lower surface of the smoke exhaust duct 11, and the smoke exhaust duct 11 It flows in and is discharged from the upper exhaust port 3.

  At this time, warm air in the casing 1 of the heating cooker flows into the air induction holes 12f respectively provided in the convex ribs 12g of the case 12 by the air flowing in the air path of the case 12, and the inside of the air path Together with the air flowing through the air, the air is discharged from the upper exhaust port 3 through the triangular vents 12e and 11e. Further, the air flowing into the smoke exhaust duct 11 and flowing to the exhaust port 3 side attracts the air on the deodorizing catalyst side in the smoke exhaust duct 11 to flow to the exhaust port 3 side. The smoke inside is attracted and flows into the flue gas duct 11 through the deodorizing catalyst. And it is discharged | emitted from the upper exhaust port 3 similarly to the above.

  As described above, according to the embodiment, the smoke induction device 12 including the axial flow fan 13 is installed below the smoke exhaust duct 11, and air is sent into the smoke exhaust duct 11 by the fan 13 to heat the heating chamber. 7 so as to attract and discharge the smoke from the exhaust port 3, an axial heat fan 13 that does not require heat resistance can be used. Therefore, an inexpensive axial flow fan 13 that is commercially available is used instead of a metal fan. It can be used, and the cost can be reduced.

  Further, since the ventilation port 12e of the spacer 12d at the upper part of the case 12a and the ventilation port 11e provided on the lower surface of the smoke exhaust duct 11 are formed in a triangular shape along the rotational direction of the axial fan 13, the rotation of the axial fan 13 The air volume can be passed through each of the vents 11e and 12e efficiently without variation, so that the smoke in the grill 5 can be easily attracted.

Furthermore, since the case 12a of the smoke attracting device 12 is integrally formed of a resin material, the airtightness is improved and the number of parts can be suppressed. Therefore, the structure can be simplified by reducing the number of parts. Yes.
Further, since the drain hole 12j and the water outflow prevention wall portion 12f are provided at the bottom of the case 12a, the inflow of the axial fan 13 due to the inflow of water can be prevented.

Moreover, since the axial fan 13 is fitted in the air passage of the case 12a with a vibration isolating member interposed therebetween, vibration generated when the axial fan 13 rotates can be suppressed.
Moreover, since the air induction hole 12h which attracts the air in the housing | casing 1 with the air which flows in the air path by rotation of the axial flow fan 13 is provided in the both sides wall of the exit side of the air path of case 12a, it is cooked. The inside of the vessel can be cooled.
Further, since the spacer 12d formed of sheet metal is interposed between the lower surface of the smoke exhaust duct 11 made of sheet metal and the resin case 12a, heat conduction from the smoke exhaust duct 11 to the case 12a. Can be suppressed.
Moreover, since the bend angle of the smoke exhaust duct 11 is an obtuse angle, the attraction of smoke by the air flowing through the smoke exhaust duct 11 is improved. In this case, the smoke exhaust duct 11 is separated from the back surface of the casing 1 of the cooker body, Therefore, it is possible to suppress an increase in the temperature of the housing 1 due to heat radiation from the smoke exhaust duct 11.
In the embodiment, it has been described that the shape of the ventilation port 11e provided in the lower surface 11c of the smoke exhaust duct 11 and the ventilation port 12e provided in the spacer 12d are triangular. However, the present invention is not limited to this. For example, a rectangular hole or a plurality of round holes may be used.

It is sectional drawing which shows the heating cooker which concerns on embodiment of this invention seeing from a side surface. It is a perspective view which shows the smoke exhaust duct of the deodorizing and smoke exhausting apparatus of the heating cooker which concerns on embodiment. It is sectional drawing and the top view which show the smoke attraction apparatus of a deodorizing and smoke exhausting apparatus.

Explanation of symbols

1 Cooker body housing, 2 top plate, 3 exhaust port, 5 grille, 6 door, 7 heating chamber,
8a Upper heater, 8b Lower heater, 10 Deodorization / smoke exhaust device, 11 Smoke exhaust duct,
11a Suction port, 11b Discharge port, 11c Lower surface, 11d Upper surface, 11e Ventilation port,
12 Smoke attracting device, 12a Case, 12b Air suction port, 12c Opening, 12d Spacer, 12e Ventilation port, 12f Water outflow barrier, 12g Convex rib, 12h Air attraction port, 12i Groove, 12j Drain hole, 12k Attachment part, 12m support piece part, 13 axial fan.

Claims (8)

A grill housed in the casing of the cooker body,
A smoke exhaust duct that communicates with the grill and discharges smoke from a heated object heated by the grill to the outside;
There is a blower fan inside, and the rotation of the blower fan sucks air from a through hole provided in the housing, sends it into the smoke exhaust duct, and discharges it to the outside. A cooking device comprising a smoke attracting device for attracting smoke and discharging it to the outside. The smoke attracting device is
A substantially S-shaped air passage is formed, and an inlet of the air passage is joined to the through hole, and an outlet of the air passage is joined to a lower surface of the smoke exhaust duct via a spacer so as to allow ventilation. ,
The cooking device according to claim 1, wherein the blower fan is provided in an air passage of the case.   The lower surface of the smoke exhaust duct and the spacer are each provided with a triangular ventilation port in which one side approaches the other side obliquely along the rotation direction of the blower fan. 2. The cooking device according to 2. The case is
A drain hole provided at the bottom of the lower side of the outlet of the air passage;
4. A water outflow prevention wall portion provided at a bottom near the drain hole and for preventing water flowing in from the ventilation port from flowing out to the inlet side of the air passage. Cooking device.   The said case is provided with the air induction hole which attracts the air in the said housing | casing with the air which flows in the said air path by rotation of the said ventilation fan in the both-sides wall of the exit side of the said air path. Item 5. A cooking device according to any one of Items 2 to 4.   One end of the smoke exhaust duct is joined to the back surface of the grill so as to allow ventilation, extends from the one end to the back side of the housing, and is bent with an obtuse angle upward and is made of a metal having a quadrilateral cross section. The cooking device according to any one of claims 1 to 5, wherein the cooking device is a cooking device.   The cooking device according to any one of claims 2 to 6, wherein the case is integrally formed of a resin material, and the spacer is formed of a plate-like metal.   The cooking device according to any one of claims 2 to 7, wherein a vibration isolating member is provided between an outer periphery of a motor case of the blower fan and the air passage.

Images