JPH0118984Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a box-shaped cooking device such as a gas oven or a grill.

Conventional configurations and their problems In general, as kitchens become more sophisticated, gas ovens, grills, etc. are built into cabinets, or are combined with cabinets on top to improve interior design.

By the way, in this type of heating cooker, the top plate of the container body becomes hot due to the heated air, which affects the upper cabinet. Therefore, the temperature of the top plate must be lowered to at least 100°C or lower.

For this reason, a heating cooker as shown in FIG. 1 has been devised. This heating cooker is configured as a gas oven, with a container body 1 built in between an upper cabinet 2 and a lower cabinet 3, and a ventilation duct 5 at the bottom of a top plate 4.
This ventilation duct 5 communicates with the lower heating chamber 6 via an exhaust port 7, and has a fan 8 provided inside, and one end communicates with an intake port 9 formed on the front side of the vessel body 1. , the other end is configured to communicate with an exhaust pipe 11 provided on the wall 10. In the figure, 13 is a burner chamber equipped with a burner 14, 15 is a circulation chamber equipped with a fan 16, 17 is a cooking plate, and 18 is a door.

This configuration performs combustion cooking using air heated by a burner 14. During cooking, a fan 8 in a ventilation duct 5 is operated, and indoor air is flowed through this ventilation duct 5 to cool the top plate 4. However, since the fan 8 is located downstream of the exhaust port 7, heated air from the heating chamber 6 hits the fan 8, causing thermal deterioration of the fan 8. Further, since the exhaust is from the rear, an exhaust pipe 11 must be provided on the wall 10 for exhaust, which makes the installation work troublesome.

Purpose of the invention The present invention takes into consideration the above-mentioned problems, and aims to provide a heating cooker that can cool the top plate without thermally deteriorating the cooling fan and does not require special construction for exhaust. It is something.

Structure of the invention In order to achieve the above object, the invention provides a ventilation duct between the heating chamber and the top plate, and the ventilation duct has an upper air flow passage and a lower air flow passage by a partition plate. The front end of the lower air flow passage communicates with the intake port formed on the front side of the container body, the front end of the lower air flow passage communicates with the exhaust port formed on the front side of the container body, and the rear portions of the upper and lower air flow passages communicate with each other. A fan is provided in the air flow passage, and a communication hole that communicates with the communication passage from the heating chamber to the lower air flow passage is provided on the downstream side of the fan, and from this, heated air from the heating chamber is supplied to the upper air passage. The top plate of the vessel is effectively cooled, and there is no problem with the built-in configuration.In addition, there is no need for construction work on walls etc. for exhaust, making installation easy. Since the communication hole communicating with the flow path is provided on the downstream side of the fan, thermal deterioration of the fan due to heated air can be reduced.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.

In the figure, reference numeral 19 denotes a box-shaped gas oven body, which is built in between an upper cabinet 20 and a lower cabinet 21. The vessel body 19 includes a heating chamber 22 and a burner chamber 24 provided behind the heating chamber 22 and having a burner 23.
The circulation chamber 26 is connected to the burner chamber 24 and the heating chamber 22 and has a fan 25, and a door 27. Further, a ventilation duct 30 is formed between the top plate 28 of the container body 19 and the heating chamber top plate 29. The ventilation duct 30 is partitioned into an upper air flow passage 30a and a lower air flow passage 30b by a partition plate 31, and the upper air flow passage 30a and the lower air flow passage 30b communicate with each other at their rear ends. Further, the front end of the upper airflow passage 30a communicates with a suction port 31 formed at the front of the container body 19, and the front end of the lower airflow passage 30b is formed at the front of the container 19,
It also communicates with a narrowed exhaust port 32. A fan 33 is provided at a communication portion between the upper air flow passage 30a and the lower air flow passage 30b, and the lower air flow passage 30b communicates with the heating chamber 22 via a communication hole 34 on the downstream side of the fan 33. . A cover 35 is provided in the lower airflow passage 30b to cover an upper portion of the communication hole 34 from the fan 33 side, and a turbulence piece 36 is provided on the downstream side of the communication hole 34. In the figure, 37 is a heat insulating material provided on the top plate 29 of the heating chamber 22, 38 is a cooking plate, and 39 is a switch.

In the above configuration, the ventilation duct 3
By operating the fan 33 in 0, the suction port 3
Cool indoor air is sucked in through the ventilation duct 30, the flow is reversed at the rear of the ventilation duct 30, and the air is exhausted through the exhaust port 32. Therefore, the top plate 28 of the container body 19 is cooled. The ventilation duct 30 also serves as an exhaust duct for the heating chamber 22, but it is partitioned into two stages, upper and lower, and heated air from the heating chamber 22 does not flow into the upper airflow passage 30a on the top plate 28 side, so that the top plate 28 cannot be cooled. It is valid. Furthermore, since the portion communicating from the heating chamber 22 to the lower air passage 30b is on the downstream side of the fan 33, the fan 33 is not thermally deteriorated by heated air. Further, since there is a cover 35 in the communication hole 34 portion that communicates with the lower air passage 30b from the heating chamber 22 to cover the communication hole 34 from the upstream side,
The forcedly flowing cooling air is difficult to enter the heating chamber 22 through the communication hole 34, and the temperature of the heating chamber is not lowered. In addition, the communication hole 3 of the lower air passage 30b
Since the turbulence piece 36 is provided on the downstream side of the heating chamber 22, the heated air coming out of the heating chamber 22 mixes with the cooling air, and the air discharged is of a low temperature, so that the exhaust port 32 is There is no problem even if it is provided on the front side of the body 19.

Incidentally, although the above embodiment is a gas oven, the present invention can also be applied to a gas grill.

Effects of the Invention As explained above, the cooking device of the present invention has a ventilation duct between the heating chamber and the top plate, and this ventilation duct has an upper air flow passage and a lower air flow passage by means of a partition plate. The front end of the air flow passage communicates with the suction port formed on the front side of the container body, the front end of the lower air flow passage communicates with the exhaust port formed on the front side of the container body, and the rear end of the upper and lower air flow passages communicates with the exhaust port formed on the front side of the container body. are in communication with each other, and a fan is provided in the air flow passage, so heated air from the heating chamber does not flow into the upper air flow passage, effectively cooling the top plate of the vessel,
There is no problem with the built-in configuration, and installation is easy as no work is required for exhaust ventilation on walls, etc. Furthermore, there is a communication hole on the downstream side of the fan that connects the heating chamber to the lower airflow passage. Therefore, it has great practical effects, such as being able to reduce thermal deterioration of the fan due to heated air.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional built-in cooking device, FIG. 2 is a perspective view of a built-in cooking device according to an embodiment of the present invention, and FIG. 3 is a sectional view of the same. 19... Vessel, 20, 21... Cabinet,
22...heating chamber, 23...burner, 27...door,
28... Top plate, 30... Ventilation duct, 31... Suction port, 32... Exhaust port, 34... Communication hole.

Claims (1)

[Scope of utility model registration request] A ventilation duct is provided between the heating chamber and the top plate, and the ventilation duct has an upper air flow passage and a lower air flow passage formed by a partition plate, and the upper air flow passage has a front end formed in the front side of the vessel. The front end of the lower air flow passage communicates with the exhaust port formed on the front side of the container body, the rear portions of the upper and lower air flow passages communicate with each other, and a fan is provided in the air flow passage. The cooking device further includes a communication hole communicating with the lower airflow passage from the heating chamber on the downstream side of the fan.