JPS6021693Y2 - heating cooker - Google Patents

Description

[Detailed description of the invention] This invention relates to a heating cooker that cooks the object to be heated in the heating chamber by blowing hot air from the hot air generation chamber into the heating chamber using a blower fan. The aim is to provide cooking equipment.

Conventionally, in this kind of hot air forced circulation heating cooking device, the heating chamber and the hot air generation chamber are separated by a partition wall, a blower fan is placed in the center of the hot air generation chamber, and an air intake port is formed in the partition wall facing the blower fan. The air in the heating chamber is sucked into the hot air generation chamber from the heating chamber, heated by a heater placed around a blower fan, and the hot air is blown into the heating chamber by the blower fan through vents formed on the left and right sides of the partition wall. there were.

However, in this type of conventional configuration, the volume of the hot air generation chamber becomes large, which increases the size of the apparatus, and there is a loss of heat from the rear wall of the hot air generation chamber.

This invention eliminates the conventional drawbacks and will be explained below with reference to the drawings.

In the figure, 1 is a cooking device main body, and inside the main body 1, a heating chamber 3 for storing a heated object 2 is arranged.

An opening is formed in the front surface of the heating chamber 3 to allow the object to be heated 2 to be taken in and taken out.

Reference numeral 4 denotes a door pivotally supported on the left front side of the main body 1 to open and close the opening, and a see-through window 5 for seeing through the inside of the heating chamber 3 is formed approximately in the center of the door.

The see-through window 5 is composed of a transparent plate made of heat-resistant glass and a wire mesh that does not impair the see-through effect, and prevents the hot steam and high-frequency energy within the heating chamber 3 from leaking to the outside.

A handle 6 for opening and closing the door 4 is arranged on the lower right side of the door 4.

Further, an operation panel 7 is arranged on the right side of the door 4 on the front side of the main body 1, and this operation panel 7 includes a microwave time knob 8 for setting the cooking time for high-frequency cooking and a cooking time for setting the cooking time for heater heating cooking. An oven timer knob 9, a temperature setting knob 10 for setting the temperature in the heating chamber 3 to a predetermined temperature for heater heating cooking, and a cooking button 11 for starting cooking are arranged.

In FIG. 2, reference numeral 12 denotes a magnetron as a high frequency generator fixed to the right outer surface of the heating chamber 3, and supplies high frequency energy into the heating chamber 3 via a waveguide 13.

A power transformer 14 for supplying high voltage to the magnetron 12 is mounted and fixed on the bottom wall soil surface of the main body 1 at the rear of the lower part of the magnetron 12.

Further, a blower 15 is provided above the transformer 14 and behind the magnetron 12, and its suction airflow cools the transformer 14, and the exhaust airflow cools the magnetron 12.

The dry heated air after cooling the magnetron 12 is introduced into the heating chamber 3 through the waveguide 13.

An exhaust port 16 consisting of a large number of small holes is formed at the rear of the left side wall of the heating chamber 3, which is approximately diagonal to the inlet.

This exhaust port 16 communicates with the outside of the main body 1 through an exhaust duct 17.

A hot air generation chamber 19 is formed at the rear of the rear wall 18 of the heating chamber 3.

As shown in FIG. 3, this hot air generation chamber 19 includes a fan chamber 20 having a roughly circular vertical section and a heater chamber 2 having a roughly triangular vertical section.
1, and each of these chamber parts 20, 21 is separated from the heating chamber 3 by a partition wall 18a that is common to the rear wall 18 of the heating chamber 3.

A spiral-shaped blower fan 22 is housed in the center of the fan chamber 20 slightly to the lower right, and the blower fan 22 is rotated clockwise in FIG. 3 by a fan motor 23 arranged on the rear wall of the fan chamber 20. be done.

The partition wall 18a facing the center of the blower fan 22 has a fourth
As shown in the figure, an intake port 24 consisting of a large number of small holes is formed, and when the blower fan 22 is driven through this intake port 24, air in the heating chamber 3 is sucked into the hot air generation chamber 19.
It is connected to the heater chamber 21 from the air outlet 25 formed on the right side.
It's gushing out.

A heater 26 wound in a loose manner is housed in the heater chamber 21, and a pair of electrodes extending to the right penetrates the right side wall of the heater chamber 21 and connects to a socket ( (not shown).

The heater chamber section 21 is connected to the air outlet 25 of the fan chamber section 20 at its left end, and the distance between the soil wall and the lower wall of the heater chamber section 21 gradually increases from the left side toward the right. It is formed.

Further, at the right end portion of the partition wall 18a facing the heater chamber portion 21, an air blowing port 27 consisting of a large number of small holes is formed over almost the entire height of the heating chamber 3.

The air outlet 27 is arranged close to the heater 26 so as to partially overlap with it, and a temperature sensor 28 is arranged in the heater chamber 21 near the air outlet 27.

29 shown in Fig. 2 is a wind direction board with a cross section shaped like a square.
It is fixed to the partition wall 18a in the hot air generation chamber 19 so as to extend almost completely in the vertical direction.

This wind direction plate 29 disturbs the airflow flowing along the air passage of the heater chamber 21, and by utilizing the negative pressure on the back side of the wind direction plate, the blowing direction of hot air from the air outlet can be adjusted as much as possible. The angle is wide.

As described in detail above, in the present invention, the hot air heated by the heater 26 in the hot air generation chamber 19 is
It enters the heating chamber 3 through the air outlet 27 provided on the other side, passes over the food (item to be heated) 2, and enters the back wall 18.
Convection is forced to exit the heating chamber 3 through the air inlet 24 provided on one side, so the hot air quickly flows around the food 2 placed approximately in the middle of the heating chamber 3. The entire food 2 can be heated evenly and cooked effectively.

Moreover, unlike conventional hot air generators, there is no need for a large hot air generation chamber that spans almost the entire area of the back wall 18, and the hot air generation chamber 19 can be configured extremely compactly. Since it can be placed as close as possible immediately after the mouth 27, the rate of heat generated by the heater 26 escaping from the rear wall of the hot air generation chamber 19 is small, and efficient cooking can be performed.

Furthermore, even if the air outlet 27 is provided only in a part of the back wall 18 on the other side, the air direction plate 19 is particularly provided on the back side of the back wall 18 corresponding to one side of the air outlet 27. Therefore, the wind direction plate 29 disturbs the air flowing along the air passage of the hot air generation chamber 19, and by utilizing the negative pressure on the back surface of the wind direction plate 29, the hot air from the wind direction opening 27 can be blown out in different directions. It has extremely excellent features as a hot air generator of this type, such as being able to have an extremely wide angle, supplying hot air widely into the heating chamber 3, and cooking the whole food until it becomes fluffy.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a heating cooker that embodies this idea, Figure 2 is a sectional view of the main part, Figure 3 is a longitudinal sectional view of the main part with the rear wall removed, and Figure 4 is a cross-sectional view of the main part with the rear wall removed. It is a front view. In the figure, 1 is the main body, 3 is the heating chamber, 19 is the hot air generation chamber, 20
is a fan chamber, 21 is a heater chamber, 22 is a blower fan,
24 is an inlet, 25 is an outlet, 26 is a heater, and 27 is an air outlet.

Claims (1)

[Scope of utility model registration request] A heating chamber 3 that stores the object to be heated 2, a hot air generation chamber 19 formed adjacent to the back side of the heating chamber 3, a back wall 18 that partitions the hot air generation chamber 19 and the heating chamber 3, and the back wall 18 that partitions the hot air generation chamber 19 and the heating chamber 3. wall 18
An air intake port 24 from the heating chamber 3 to the hot air generation chamber 19 formed on the left and right sides of An air outlet 27 to the heating chamber 3 is formed in a portion on the other side of the wall 18 so as to cover almost the entire height of the heating chamber 3, and an air outlet 27 is provided in the hot air generation chamber 19 near the air outlet 27. Furthermore, the hot air generation chamber 19 includes an air outlet 2 of a fan chamber section 20 housing the blower fan 22.
The height direction dimension of the air passage from 5 to the air outlet 27 is gradually increased, and the air outlet 27
On the back side of the back wall 18 corresponding to one side, there is a bend diagonally backward so as to be substantially perpendicular to the air passage in the hot air generation chamber 19 over almost the entire height of the air outlet 27. A heating cooker characterized by being provided with a wind direction plate 29.