JP4985971B2 - grill - Google Patents

Description

  The present invention relates to a grill warehouse for storing an object to be cooked, a burner provided on the ceiling of the grill warehouse, which requires secondary air for combustion, and a combustion chamber for discharging combustion exhaust gas in the grill warehouse to the outside. It is related with a grill provided with a flue behind.

  In this type of grill, a grill pan on which a grill net for placing the food to be cooked is stored in a grill cabinet so that the grilled juice dripping from the food to be cooked can be received by the grill pan. Here, if the burner continues to burn for a long time, the broth containing the oil accumulated in the grill pan may be abnormally overheated and ignite. A flame generated by ignition may overflow from the flue to the outside.

  Therefore, conventionally, a communication port was established in the upper part of the rear wall of the grill cabinet to connect the inside of the grill cabinet and the flue behind it, and the bottom of the flue was positioned at the same height as the bottom of the grill cabinet. In addition, a grill is known in which a guide plate extending downward from the height of the middle part in the vertical direction of the grill cabinet is provided at a position facing the rear of the communication port of the flue (see, for example, Patent Document 1). In this case, the flue gas flowing in from the communication port once detours below the guide plate and then is guided to the exhaust port above the rear of the flue. Therefore, the flow path length of the flue becomes long, the flame is not extinguished in the middle of the flue, and the flame does not overflow from the exhaust port to the outside.

Here, the conventional grill uses the all-primary combustion type burner that does not require the combustion secondary air as the burner provided on the ceiling of the grill cabinet, but the burner requires the combustion secondary air. In some cases, poor combustion is likely to occur. That is, by providing the guide plate extending below the height of the middle part in the vertical direction of the grill in the flue, the combustion exhaust gas tends to stay in the upper part in the grill. Therefore, it becomes difficult for secondary air to be supplied to the burner in the ceiling portion, resulting in poor combustion.
Japanese Patent Laid-Open No. 2000-111052 (FIG. 6)

  SUMMARY OF THE INVENTION In view of the above, the present invention provides a grill that can prevent a flame generated in a grill warehouse from overflowing to the outside through a flue without causing a burner failure. It is said.

  In order to solve the above-described problems, the present invention provides a grill box for storing an object to be cooked, a burner provided on the ceiling of the grill box and requiring secondary air for combustion, and a combustion exhaust gas in the grill box. And a flue located behind the grill cabinet, the bottom of the flue being located above the bottom of the grill cabinet, and the rear wall of the grill cabinet at the height of the bottom of the flue A partition plate portion extending upward is provided, and a laterally elongated communication port is formed between the upper edge of the partition plate portion and the ceiling portion of the grill cabinet to communicate the inside of the grill cabinet with the flue, and the flue The combustion exhaust gas flowing in from the communication port is detoured downward at a position opposite to the rear of the communication port, and then led to the exhaust port at the upper rear of the flue, extending below the upper edge of the partition plate. A guide plate is provided and a plurality of ventilation holes smaller than the communication port are opened in the partition plate Characterized in that it is.

  According to the present invention, the lower end of the communication port (the upper edge of the partition plate portion) can be positioned as high as possible in the grill cabinet by making the communication port elongated in the lateral direction. Further, the portion of the rear wall portion of the grill that is located below the bottom surface of the flue is exposed to the outside air, and the rear wall portion is cooled by the outside air. Therefore, the flame generated in the grill is cooled by contact with the rear wall portion (including the partition plate portion) before reaching the communication port. In addition, since a vent hole is small, the flame which generate | occur | produced in the grill warehouse hardly penetrates into a flue from a vent hole.

  Here, in the present invention, since the bottom surface of the flue is located above the bottom surface of the grill warehouse, even if the flue gas is diverted downward to the vicinity of the bottom surface of the flue by the guide plate, the flow path length of the flue is The bottom of the flue is shorter than that of the conventional example located at the same height as the bottom of the grill cabinet. However, since the flame generated in the grill is cooled as described above before reaching the communication port, the flame is extinguished in the flue even if the flue channel length is short, and the flame is exposed to the outside from the exhaust port. It will not overflow.

  Further, since the position of the bottom surface of the flue is increased, the position of the lower edge of the guide plate is also increased, and it is possible to suppress the combustion exhaust gas from staying in the upper part of the grill warehouse to some extent. However, if the communication port is elongated in the lateral direction and the vertical width is narrowed, the passage resistance at the communication port increases. Therefore, in this state, the effect of preventing the combustion exhaust gas from staying in the upper part of the grill is reduced. On the other hand, in the present invention, the combustion exhaust gas in the grill warehouse flows into the flue not only from the communication port but also from the vent hole formed in the partition plate portion. This effectively prevents the combustion exhaust gas from staying in the upper part of the grill. Therefore, the combustion secondary air is sufficiently supplied to the burner, and no combustion failure occurs.

Further, the vent hole, by Rukoto opened only in a portion of the partition plate portion located above the lower edge of the guide plate, a part of the flame generated in the grill box even penetrate into the flue from the vent The intruding flame detours downward along the guide plate. Then, the flame is surely extinguished in the flue by cooling the flame when passing through the vent and detouring downward.

  FIG. 1 shows a grill incorporated in a stove body (not shown). The grill includes a grill cabinet 1 and a grill door 2 that closes the front opening of the grill cabinet 1. A grill pan 4 on which a grill net 3 is placed is stored in the grill cabinet 1. A frame 2 a surrounding the grill pan 4 is connected to the grill door 2, and the grill pan 4 is put in and out of the grill cabinet 1 by opening and closing the grill door 2. And to-be-cooked material is accommodated in the grill warehouse 1 in the state put on the grill 3.

  A burner 5 for heating the food to be cooked is provided on the ceiling portion 11 of the grill cabinet 1. The burner 5 is composed of a plate-type burner with a combustion plate 5a attached to the lower surface. A number of flame holes are formed in the combustion plate 5a. A plurality of air holes 12 are formed in the left and right side walls of the grill cabinet 1. Then, the air-fuel mixture (mixed gas of fuel gas and primary air) ejected from the flame holes of the combustion plate 5a is supplied with the combustion secondary air from the air holes 12 so as to be completely combusted. The combustion exhaust gas generated by the combustion of the air-fuel mixture is discharged to the outside through a flue 6 provided at the rear of the grill box 1.

  The bottom surface 61 of the flue 6 is located above the bottom surface of the grill 1. In the present embodiment, the bottom surface 61 of the flue 6 is inclined rearward and the front portion of the bottom surface 61 is positioned at the same height as the intermediate portion in the vertical direction of the grill cabinet 1.

  A partition plate portion 13 a extending upward from the height of the bottom surface 61 of the flue 6 is integrally provided on the rear wall portion 13 of the grill cabinet 1. And between the upper edge of the partition part 13a and the ceiling part 11 of the grill cabinet 1, the communication port 7 which connects the inside of the grill cabinet 1 and the flue 6 is formed. The communication port 7 is formed in an elongated shape in the horizontal direction as shown in FIG. 2, and its vertical width is set to about 10 mm.

  In addition, a guide plate 62 extending downward from the height of the upper edge of the partition plate portion 13a is provided at a position facing the rear of the communication port 7 of the flue 6. Therefore, the combustion exhaust gas flowing in from the communication port 7 once detours downward along the guide plate 62 and then guided to the exhaust port 63 above the rear portion of the flue 6.

By the way, if the burner 5 is continuously burned for a long time, the broth containing the oil accumulated in the grill pan 4 may be abnormally overheated and ignite. A flame generated by the ignition may overflow from the flue 6 to the outside.

  Here, in this embodiment, since the communication port 7 elongated in the lateral direction is provided on the partition plate portion 13a extending above the height of the bottom surface 61 of the flue 6, the lower edge (partition plate portion) of the communication port 7 is provided. 13a can be positioned as high as possible in the grill 1. In addition, the rear wall 13 of the grill 1 located below the bottom surface 61 of the flue 6 is exposed to the outside air, and the rear wall 13 is cooled by the outside air. Therefore, the flame generated in the grill cabinet 1 is cooled by contact with the rear wall portion 13 (including the partition plate portion 13 a) before reaching the communication port 7. When the flame detours downward along the guide plate 62 in the flue 6, heat is further deprived. Accordingly, the flame is extinguished in the flue 6 and the flame does not overflow from the exhaust port 63 to the outside.

  Further, in this embodiment, since the position of the bottom surface 61 of the flue 6 is increased, the position of the lower edge of the guide plate 62 is also increased, and the accumulation of combustion exhaust gas at the upper part in the grill 1 is suppressed to some extent. it can. However, if the communication port 7 is elongated in the horizontal direction and its vertical width is reduced to about 10 mm, the passage resistance at the communication port 7 increases. For this reason, the effect of preventing the combustion exhaust gas from staying in the upper part of the grill cabinet 1 is diminished, and the combustion secondary air is not sufficiently supplied to the burner 5 to cause combustion failure.

  Therefore, in the present embodiment, a plurality of vent holes 8 that are far smaller than the communication port 7 are provided in the partition plate portion 13a in two upper and lower stages. According to this, the combustion exhaust gas in the grill box 1 flows out not only from the communication port 7 but also from the vent hole 8 to the flue 6, and the retention of the combustion exhaust gas in the upper part in the grill box 1 is effectively prevented. Therefore, the combustion secondary air is sufficiently supplied to the burner 5 and no combustion failure occurs.

  Since the vent hole 8 is small, a flame generated in the grill cabinet 1 hardly enters the flue 6 from the vent hole 8. However, when a large flame is generated, a part of the flame may enter the flue 6 from the vent hole 8.

  Therefore, in the present embodiment, the vent hole 8 is opened only in the portion of the partition plate portion 13 a located above the lower edge of the guide plate 62. According to this, even if a part of the flame generated in the grill cabinet 1 enters the flue 6 from the vent hole 8, the intruding flame bypasses downward along the guide plate 62. The flame is surely extinguished in the flue 6 by cooling the flame when passing through the vent hole 8 and detouring downward.

  Further, a temperature sensor 9 protruding into the flue 6 is provided on the bottom surface 61 of the flue 6. And when a flame reaches the installation part of the temperature sensor 9 and the temperature detected by the temperature sensor 9 rises abnormally, the burner 5 is extinguished.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above embodiment, the present invention is applied to a grill incorporated in a stove. However, the present invention can be similarly applied to a grill provided separately from a stove.

The cut side view of the grill of the embodiment of the present invention. Sectional drawing cut | disconnected by the II-II line | wire of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Grill warehouse, 11 ... Ceiling part, 13 ... Rear wall part, 13a ... Partition plate part, 5 ... Burner, 6 ... Chimney, 61 ... Bottom, 62 ... Guide plate, 63 ... Exhaust port, 7 ... Communication port, 8: Ventilation hole.

Claims (1)

A grill that stores the food to be cooked, a burner provided on the ceiling of the grill that requires secondary air for combustion, and smoke behind the grill that exhausts the combustion exhaust gas in the grill. A grill with a road,
The bottom of the flue is located above the bottom of the grill, and a partition plate that extends above the height of the bottom of the flue is provided on the rear wall of the grill. Between the ceiling part, a laterally elongated communication port that connects the inside of the grill and the flue is formed, and the flue gas flowing in from the communication port is temporarily lowered at a position facing the rear of the flue communication port. A guide plate extending below the height of the upper edge of the partition plate is provided, and a plurality of ventilation holes smaller than the communication port are opened in the partition plate. It is,
The grill is characterized in that the vent hole is opened only in a portion of the partition plate portion located above the lower edge of the guide plate .

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