JPH11166728A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the overheat of a motor by suppressing the overheat of the vicinity of an exhaust case. SOLUTION: This cooker is provided with a cooking room 1, a burner 6, a motor 10, a circulating fan 11 attached to the motor 10 so as to circulate and exhaust the combustion hot air of the burner 6, a self-cooling fan 12 for cooling the motor 10, and an exhaust case 8 for mixing and discharging the combustion hot air to be discharged and the blast air of the self-cooling fan 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cooking device.

[0002]

2. Description of the Related Art Conventionally, this type of cooker is disclosed, for example, in Japanese Patent Application Laid-Open No. 5-126336. According to this publication, a circulation fan attached to a motor is provided in order to circulate and discharge the combustion hot air of a burner in a cooking cabinet.
The exhaust case for discharging the combustion hot air is exposed. The circulation fan and the motor are separated by a partition plate.

[0003]

As described above, in the conventional cooking device, the combustion hot air is directly discharged through the exhaust case. Therefore, when the user approaches the vicinity of the exhaust case, the first heat is received. There are disadvantages. Furthermore, there is a second drawback in that the exhaust case and its nearby components are thermally damaged.

Further, since the motor receives heat around the high-temperature circulating fan through the partition plate, there is a third disadvantage that the motor is easily thermally degraded. Therefore, the present invention provides a cooker that suppresses overheating near the exhaust case and suppresses overheating of the motor in consideration of such conventional disadvantages.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is provided with a cooking chamber, a burner, a motor, and a motor mounted to circulate and discharge hot air from the burner in the cooking chamber. It is provided with a circulation fan, a self-cooling fan for cooling the motor, and an exhaust case for mixing and discharging the discharged hot combustion air and the air blown by the self-cooling fan.

The present invention preferably provides a self-cooling fan with:
The circulation fan and the motor are provided to be located on opposite sides of each other.

The present invention desirably reduces the width of the exhaust case,
It is provided to be larger than the width of the cooking cabinet.

The present invention desirably includes a partition plate for separating the circulating fan and the self-cooling fan, an exhaust guide for separating the combustion hot air and the blown air, and the exhaust guide is provided on the combustion hot air side of the partition plate.

The present invention desirably provides an exhaust cover so as to cover the upper part of the exhaust case and provide an opening in the front.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cooker according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a sectional view of a main part of the cooking device, and FIG. 2 is a front view of the main part. In these figures, a cooking cabinet 1 is formed in a substantially box shape with an open front surface, and a straightening plate 2 is provided on a rear surface.

The rectifying plate 2 has a suction port 3 formed at a substantially central portion, and discharge ports 4a, 4b, 4c, 4d, 4e,
4f is formed, and an exhaust port 5 is formed on the upper part. The burner 6 is arranged behind the current plate 2 with the flame opening facing upward, and the mounting plate 7 is arranged so as to surround the burner 6.

The exhaust case 8 is formed in a substantially box shape with an open front surface, and a plurality of outlets 9 are formed on the upper surface.
Is fixed to the rectifying plate 2 so as to cover the rear of the rectifier plate 2.

The motor 10 is fixed to an exhaust case 8, and a circulation fan 11 and a self-cooling fan 12 are fixed to its shaft. In this way, the circulation fan 11 is disposed on the opposite side to the self-cooling fan 12 so that the motor 10 is located rearward with respect to the cooling fan 12.

A partition plate 13 for separating the circulation fan 11 and the self-cooling fan 12 is provided. The fan case 14 has a substantially central opening and is fixed to the partition plate 13 so as to cover the circulation fan 11. The exhaust case 8 has an opening 15 formed in a lower portion on the side facing the self-cooling fan 12, and is provided so that the upper part of the self-cooling fan 12 is open.

The combustion hot air 16 generated when the burner 6 burns is sucked into the center of the circulation fan 11 by the circulation fan 11 and discharged to the peripheral side, and is discharged to the discharge port 4 a of the current plate 2.
調理 4f and enter the cooking cabinet 1. Then, the circulation fan 11 passes through the inlet 3 of the rectifying plate 2 and passes through the circulation fan 1.
1 and is discharged to the peripheral side. Thus, the circulation fan 11 circulates the combustion hot air 16 of the burner 6 in the cooking cabinet 1. Also, some of this circulating hot air
The discharged combustion hot air 17 passes through the exhaust port 5 of the current plate 2.

The exhaust guide plate 18 is provided above the exhaust port 5. The exhaust guide 19 is disposed so as to be located closer to the combustion air 17 than the partition plate 13 so as to separate the combustion hot air 17 and the blown air 20 by the self-cooling fan 12.

The deflection plate 21 is fixed to the exhaust case 8 so as to guide the upper part of the self-cooling fan 12 obliquely. The rear plate 22 has an opening 23 formed at a lower portion, and is disposed so as to cover the motor 10.

According to such a configuration, the rotation of the self-cooling fan 12 causes the air 2 to flow through the opening 23 of the rear plate 22.
4, the motor 10 is cooled by the air 24,
The blast air 20 travels above the self-cooling fan 12.

The hot combustion air 17 and the blown air 20 are mixed in the exhaust case 8 and pass through the outlet 9 of the exhaust case 8.
The exhaust cover 25 is disposed so as to cover the upper part of the exhaust case 8 and to have an opening 26 in front.

The cooking cabinet 1, the burner 6, the exhaust case 8, the rear plate 22 and the like are provided on the bottom plate 27, and a main body case 28 is provided so as to cover the cooking cabinet 1. A turntable 29, a turntable motor 30, and an operation unit 31 are arranged in the main body case 28. A door 33 having a handle 32 is provided on the front surface of the cooking cabinet 1. The cooking device 34 is constituted by these components.

Next, the cooking device 34 will be described with reference to FIGS. 3 is a plan view of the cooker 34, FIG. 4 is a plan view of the cooker 34 with the exhaust cover 25 removed, and FIG. 5 is a side view thereof. In these figures, the exhaust case 8 is provided with a plurality of outlets 9 arranged in four rows in the longitudinal direction. The longitudinal length of the discharge port 9 is substantially the same as the width A of the cooking cabinet 1, and the width B of the exhaust case is set to be larger than the width A of the cooking cabinet. By configuring in this way,
The region where the combustion hot air 17 and the blown air 20 are mixed is widened, and the temperature of the mixed air is reduced.

Next, the operation of the cooker 34 will be described with reference to FIGS. First, the user puts an object to be cooked (not shown) into the cooking cabinet 1, closes the door 33, performs various key operations on the operation unit 31, and presses a start key.

The motor 10 starts operating, and the burner 6 starts burning. The combustion hot air 16 from the burner 6 is circulated in the cooking chamber 1 by the circulation fan 11 and the combustion hot air 1
Pass through the exhaust port as 7. Further, the air 24 cools the motor 10 by the self-cooling fan 12 and enters the exhaust case 8 as blown air 20. The mixed air mixed in the exhaust case 8 passes through the outlet 9, is changed obliquely forward by the exhaust cover 25, and is discharged from the opening 26.

[0024]

According to the present invention, as described above, the combustion hot air discharged by the circulation fan and the air blown by the self-cooling fan are mixed and discharged in the exhaust case. Since the combustion hot air and the blowing air are mixed in this manner, the temperature of the discharged air is suppressed, and there is no danger of burns even if the user touches the air. Further, since the temperature of the exhaust case itself is also suppressed, the exhaust case and parts in the vicinity thereof are not thermally damaged. Further, since the motor is cooled by the self-cooling fan, overheating of the motor is also suppressed.

The present invention desirably allows the motor to be kept away from the high-temperature circulating fan by arranging the circulating fan and the motor on opposite sides of the self-cooling fan. As a result, overheating of the motor can be suppressed.

In the present invention, preferably, the width of the exhaust case is made larger than the width of the cooking chamber, so that the area where the discharged combustion air mixes with the air blown by the self-cooling fan can be widened, and the temperature of the mixed air can be increased. Is further reduced.

In the present invention, preferably, a partition plate for partitioning the circulation fan and the self-cooling fan is provided, an exhaust guide for partitioning combustion hot air and blast air is provided, and the exhaust guide is provided on the combustion hot air side of the partition plate. By providing the exhaust guide in this way, it is possible to prevent the combustion hot air and the blown air from directly colliding with each other and weakening the flow rate of each other. By providing the exhaust guide on the combustion hot air side of the partition plate, the area through which the blown air passes can be widened, and the temperature of the mixed air can be reduced.

The present invention desirably provides an exhaust cover that covers the upper part of the exhaust case and has an opening in the front. With this configuration, it is possible to prevent the mixed air from going directly upward and heating the ceiling and the like.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a cooking device according to an embodiment of the present invention.

FIG. 2 is a front view of a main part of the cooking device.

FIG. 3 is a plan view of the cooking device.

FIG. 4 is a plan view when an exhaust cover is removed from the cooker.

FIG. 5 is a side view when an exhaust cover is removed from the cooker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooking storage 6 Burner 8 Exhaust case 10 Motor 11 Circulation fan 12 Self-cooling fan

 ──────────────────────────────────────────────────の Continuing from the front page (72) Inventor Kuninori Kuramoto 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd.

Claims (5)

[Claims] 1. A cooking cabinet, a burner, a motor, a circulating fan attached to the motor to circulate and discharge the combustion hot air of the burner in the cooking cabinet, and a self-cooling fan for cooling the motor. And a discharge case for mixing and discharging the discharged hot air and the air blown by the self-cooling fan. 2. The cooking device according to claim 1, wherein the circulation fan and the motor are provided on opposite sides of the self-cooling fan. 3. The cooking device according to claim 1, wherein the width of the exhaust case is set to be larger than the width of the cooking chamber. 4. A partition plate for partitioning the circulation fan and the self-cooling fan, an exhaust guide for partitioning the combustion hot air and the blast air is provided, and the exhaust guide is provided on the combustion hot air side of the partition plate. The cooker according to claim 1, characterized in that: 5. The cooking device according to claim 1, wherein an exhaust cover is provided so as to cover an upper part of the exhaust case and to have an opening in front.