JP5235711B2 - Cooker - Google Patents

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, a strong torque kumatori motor may be used to rotate the metal fan. 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. Even if a fan is not provided on the air passage, smoke is efficiently exhausted without being affected by the wind of the cooling fan that cools the control board and the like. An object of the present invention is to provide a cooking device that can perform the structure simplification and cost reduction.

A cooking device according to the present invention includes a grill housed in a casing of a cooking device body, a smoke exhaust duct that communicates with the grill and discharges smoke from a heated object heated by the grill to the outside, A smoke induction device that sends air into the smoke exhaust duct and attracts smoke in the grill to discharge the smoke to the outside. The smoke induction device includes a case provided in the housing and an air blow provided in the case. a fan, provided in the case so as to communicate with the through hole provided in the housing, an air suction port for sucking air outside of the housing via a transmural throughbore by the rotation of the blower fan, communicating with the housing The air intake hole is provided in the case so as to reduce the pressure in the housing, which is increased by the cooling fan provided in the housing, and is taken in from the air sucked in from the air suction port and the air intake hole. Air is sent into the smoke duct and discharged to the outside It is intended to discharge to the outside to attract the smoke in the grill by the flow of the air.

  According to the heating cooker of the present invention, a blower fan is built in the lower side of the smoke exhaust duct, and a smoke induction device communicating with the smoke exhaust duct is installed. The air in the housing is sent into the smoke exhaust duct through the air suction port provided in the smoke attracting device through the through hole provided in the housing, and the air in the housing is exhausted from the air intake hole provided in the smoke attracting device. Since it is taken into the duct and attracts smoke in the grill and is discharged from the exhaust port, a heat-resistant fan can be used, so it is not a metal fan but an inexpensive fan that is commercially available Even if the pressure in the housing is increased, the increased pressure in the housing flows into the smoke attracting device from the air intake hole and the housing Smoke from the gaps in the housing because the internal pressure decreases Will never leak to the outside, without being affected by the cooling fan, there is an effect that it is possible to secure stable triggering performance.

Sectional drawing which shows the cooking-by-heating machine which concerns on embodiment of this invention seeing from a side surface. The perspective view which shows the deodorizing and smoke exhaust apparatus of the heating cooker. Sectional drawing which shows the smoke attraction apparatus of the deodorizing and smoke exhausting apparatus of the heating cooker. The top view which shows the smoke attraction apparatus of the deodorizing and smoke exhaust apparatus of the same heating cooker.

FIG. 1 is a sectional view showing a cooking device according to an embodiment of the present invention as viewed from the side, FIG. 2 is a perspective view showing a deodorizing / smoke discharging device for the cooking device, and FIG. 3 is a deodorizing device for the cooking device. FIG. 4 is a top view showing the smoke attracting device of the deodorizing / smoke discharging device of the heating cooker.
As shown in FIG. 1, the cooking device according to the embodiment of the present invention has a top plate 2 made of heat-resistant tempered glass attached to an upper portion of a casing 1 of a 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 an exhaust port 3 is provided on the rear end side.
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. On the front operation / display unit, a power switch of the cooking device, a dial for adjusting the heating power of each heating unit, and the like are arranged.

The grill 5 described above has a heating chamber 7 constituted by a metal housing having a front opening. An upper heater 8a is disposed in the upper part of the heating chamber 7, and a lower heater 8b is disposed in the lower part.
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 deodorizing / smoke discharging device 10 includes a smoke exhaust duct 11 in which the suction port 11a side, which is one end, 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, and the smoke exhaust duct 11 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 FIGS. 1 and 2, the smoke exhaust duct 11 is formed in a substantially L shape and is made of sheet metal.
The lower surface 11c of the smoke exhaust duct 11 extends horizontally in the direction of the central axis of the suction port 11a and is bent with an obtuse angle upward, and the upper surface 11d of the smoke exhaust duct 11 moves upward as it extends in the same central axis direction. Furthermore, it is bent with an obtuse angle upward like the lower surface 11c so that the discharge port 11b is 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 FIGS. 2 and 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 this case An axial fan 13 (blower fan) fitted with an anti-vibration member (not shown) in the middle of the air passage 12a 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 above-described 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, and a drain hole is provided in the groove portion 12i. 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.
Furthermore, air intake holes 121 are provided on the lower sides of both side walls of the case 12a on the air suction port 12b side. This air intake hole 12l lowers the pressure in the casing 1 raised by a cooling fan (not shown) for cooling a circuit board (not shown) provided in the casing 1 of the cooker body. It is a hole for taking in air.

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. 4, as the shape of the air vents 11e and 12e goes from the near side to the ridge, one side obliquely approaches the other side and becomes smaller because the rotational direction of the axial fan 13 (from the grill 5 side). (Counterclockwise as viewed).
That is, it is for passing the air volume from the axial fan 13 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, the operation when the cooking device of the embodiment of the present invention discharges smoke in the grill to the outside 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. Due to the rotation of the axial fan 13, the air outside the housing 1 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 inside the case 12. The air guided to the air passage in the case 12 passes through the triangular air vent 12e provided in the spacer 12d at the top of the case 12 and the triangular air vent 11e provided in the lower surface of the smoke exhaust duct 11. It flows into the smoke exhaust duct 11 and is discharged from the upper exhaust port 3.
At this time, the air flowing in the air passage of the case 12 causes the warm air in the casing 1 of the heating cooker to flow into the air induction holes 12h provided in the convex ribs 12g of the case 12, respectively. 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.

In such induced exhaust, the air in the housing 1 is not exhausted from the smoke exhaust duct 11 to the outside of the housing 1, and the pressure in the housing 1 is increased by the cooling fan that cools the control board and the like. Smoke may leak outside through a gap, for example, a gap in the door of the grill 5.
Thus, when the pressure of the air in the housing 1 is increased by the cooling fan, the increased pressure of the air in the housing 1 is caused by the air intake holes 12l provided on both side walls of the case 12, respectively. 12 flows into the housing 1 and the pressure of the air in the housing 1 drops, so that smoke does not leak to the outside through the gaps in the housing 1, ensuring stable incentive performance without being affected by the cooling fan. can do.

  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 in 5 is attracted and flows into the smoke exhaust 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 is installed on the lower side of the smoke exhaust duct 11, and the smoke induction device 12 communicating with the smoke exhaust duct 11 is installed. An air suction port 12b for sucking air outside the housing 1 and an air intake hole 12l for taking in air inside the housing 1 are provided on the downstream side of the flow fan 13, and the axial flow fan 13 Air is sent from the air suction port 12 b into the smoke exhaust duct 11, air in the housing 1 is taken into the smoke exhaust duct 11 from the air intake hole 12 l to attract smoke in the heating chamber 7, and from the exhaust port 3. Since it was made to discharge | emit, it can use the axial fan 13 which does not need heat resistance, Therefore It becomes possible to use the cheap axial fan 13 marketed instead of a metal fan, and cost reduction is attained. And the pressure inside the housing 1 is increased. Even if the pressure of the air in the housing 1 increased from the air intake hole 12l flows into the smoke attracting device 12 and the pressure of the air in the housing 1 is lowered, the smoke from the space of the housing 1 is reduced. Will not leak to the outside, and stable incentive performance can be ensured without being affected by the cooling fan.

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.
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-side wall by the side of the air path exit of case 12a, it is a heating cooker. It becomes possible to cool the inside.

In the above embodiment, the air intake holes 121 are provided on both side walls of the case 12a of the smoke attracting device 12. However, if the air can be taken in so that the pressure in the housing 1 can be reduced. One may be provided on the side wall, or a plurality may be provided.
Further, the air intake hole 12l is formed by press working, but may be formed as a cut hole for simplifying the mold. Furthermore, the position where the air intake hole 12l is provided is desirable because cold air can be sucked in as much as possible below the side wall.

  DESCRIPTION OF SYMBOLS 1 Cooker body case, 2 Top plate, 3 Exhaust port, 5 Grill, 6 Door, 7 Heating chamber, 8a Upper heater, 8b Lower heater, 9 Through hole, 10 Deodorizing / 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 portion, 12d Spacer, 12e Ventilation port, 12f Water outflow barrier, 12g Convex Rib, 12h Air induction hole, 12i groove, 12j Drain hole, 12k mounting part, 12l Air intake hole, 12m Support piece part, 13 Axial fan.

Claims (6)

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;
A smoke inducing device that sends air into the smoke exhaust duct and induces smoke in the grill to be discharged outside;
With
The smoke attracting device is
A case provided in the housing;
A blower fan provided in the case ;
Said the through hole provided in the housing provided in the casing so as to communicate with an air suction port for sucking the air in the housing outside the body via the through-hole by rotation of the blowing fan,
An air intake hole that is provided in the case so as to communicate with the inside of the housing and lowers the pressure in the housing that is increased by a cooling fan provided in the housing ;
The air sucked from the air suction port and the air taken in from the air intake hole are sent into the smoke exhaust duct and discharged to the outside, and the smoke in the grill is attracted and discharged to the outside by the flow of the air.
Heating cooker which is characterized a call. The case is
An almost S-shaped air passage is formed,
The air suction port that is the inlet of the air passage is joined to the through hole,
The outlet of the air passage is joined to the lower surface of the smoke exhaust duct so as to allow ventilation.
The air intake hole is provided in the middle of the air path ,
The blower fan is
The cooking device according to claim 1, wherein the cooking device is provided in an air passage of the case. The air intake hole provided in the case is
The cooking device according to claim 2, wherein there is at least one. The air intake hole provided in the case is
It is located under the side wall of this case. The heating cooker of Claim 2 or 3 characterized by the above-mentioned. The case is
The air in the casing is attracted to the side wall on the downstream side of the air intake hole provided in the air passage and on the outlet side of the air passage by the air flowing in the air passage by the rotation of the blower fan. The heating cooker according to any one of claims 2 to 4, wherein an air induction hole is provided. The case is
The heating cooker according to any one of claims 2 to 5, wherein the heating cooker is integrally molded from a resin material.

Images