JP2017083100A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently decrease a temperature of exhaust, and improve installability and safety.SOLUTION: A heating cooker includes a heating chamber 28, an exhaust passage 19 of which one end communicates with a downstream side of a first discharge port 8b above the heating chamber 28 and the other end communicates with an upstream side of a second exhaust port 8c; and an external exhaust duct 18 communicating with a downstream side of the second discharge port 8c. The external exhaust duct 18 is formed with an external discharge port 8a, and the external discharge port 8a is formed closer to a center than the second discharge port 8c, and includes a projection part 10a configured to change a flow direction of exhaust 9, between the second discharge port 8c and external discharge port 8a of the external exhaust duct 18.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cooking device.

  As a background art in this technical field, there is Patent Document 1 (Japanese Patent Laid-Open No. 2009-52861). In the summary column of Patent Document 1, “the heating chamber 4 provided in the main body 1 for storing the object to be heated and the exhaust gas generated in the heating chamber 4 is disposed in the width direction from the back surface to the upper surface of the main body 1. 1, an exhaust duct 13 that discharges to the outside, an exhaust passage 16 that communicates the heating chamber 4 and the exhaust duct 13 and sends exhaust generated in the heating chamber 4 to the exhaust duct 13. Is provided at a position distant from the exhaust passage 16 ”.

JP 2009-52861 A

  In the heating cooker disclosed in Patent Document 1, the exhaust hole 20 is provided on the side opposite to the second exhaust hole 15 in the left-right direction of the main body in order to lower the exhaust temperature. However, since the distance between the second exhaust hole 15 and the exhaust hole 20 becomes longer, dust tends to accumulate between them, which hinders exhaust.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to efficiently reduce the temperature of exhaust gas and improve the installation property and safety.

  The present invention has been made to solve the above-described problems. As an example, one end of the heating chamber communicates with the downstream of the first exhaust port above the heating chamber, and the other end is the second. And an external exhaust duct communicating downstream of the second exhaust port, the external exhaust duct being formed with an external exhaust port, the external exhaust port being It is formed nearer to the center than the second exhaust port, and has a turning means for changing the flow direction of the exhaust between the second exhaust port and the external exhaust port of the external exhaust duct.

  According to the present invention, it is possible to efficiently reduce the temperature of exhaust gas and improve the installation property and safety.

The front perspective view of the heating cooker main body of one Embodiment. The rear perspective view of the main body of the heating cooker of one Embodiment. AA sectional view of FIG. The front perspective view of the state where the door of the cooking-by-heating machine of one embodiment was opened. The top view of the main body of the heating cooker of one Embodiment. The rear perspective view of the exhaust duct of one Embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the up-down and right-and-left directions demonstrated in the figure and below are expressions when the main body 1 of the heating cooker is viewed from the front, and are for convenience of explanation. That is, the present invention is not limited to the following embodiments, and various modifications can be made without departing from the scope of the present invention.
1 to 5, the main body 1 of the heating cooker includes a heating chamber 28 that accommodates an object to be heated which is an object to be heated. The door 2 is provided on the front side in the present embodiment, and opens and closes in order to put the food to be cooked in and out of the heating chamber 28. The heating chamber 28 is closed or closed by closing the door 2 to prevent leakage of microwaves used when heating the food to be cooked. Heat of the heater and superheated steam described later are contained and heated efficiently. Make it possible.

  The handle 6 is attached to the door 2, facilitates opening and closing of the door 2, and has a shape that can be easily gripped by the user.

  The glass window 3 is attached to the door 2 so that the state of food being cooked (cooked object) can be confirmed, and uses a glass that can withstand high temperatures due to heat generated by a heater or the like.

  The input means 5 is provided on the operation panel 4 on the lower front side of the door 2, and selects the heating means and inputs the cooking conditions such as the heating time and the automatic menu, and the operation part 5b. It is comprised with the display part 5a which displays the content input and cooking progress. As an example of the heating means, range heating for heating the object to be heated by microwaves, grill heating for heating the object to be heated by a heater provided on the heating chamber upper surface 28e of the heating chamber 28, steam for heating the object to be heated by steam Heating, oven heating for heating the heating chamber 28 with hot air of the hot air unit 11 by the hot air heater upper 14a and the hot air heater lower 14b (see FIG. 3) provided above and below the heating wall inner wall 28b (see FIG. 4), etc. There is.

  On the operation panel 4 of the door 2, a liquid crystal display (monochrome or color) is arranged as an example of the display unit 5a, and a dedicated key such as a bakery or a start key is arranged as an example of the operation unit 5b. The user selects a menu number with the operation unit 5b while looking at the display unit 5a and presses a start key to start cooking. The display unit 5a may be a capacitive touch panel.

  The water tank 42 (see FIG. 4) is a container that stores water necessary for generating water vapor. In this embodiment, it is provided on the lower front side of the main body 1, and water supply and drainage are easy by adopting a structure that can be detached from the front surface of the main body 1.

  The heating chamber bottom surface 28a (see FIG. 4) has a substantially central recess recessed to form an air gap 70 (see FIG. 3). A rotating antenna 26 is installed in the air gap 70, and from a magnetron (not shown). The radiated microwave flows into the lower surface of the rotating antenna 26 through the waveguide 47 and a coupling port (not shown) through which the output shaft 46a of the rotating antenna driving means 46 passes, and is diffused and heated by the rotating antenna 26. Radiated into the chamber 28. The rotating antenna 26 is connected to the output shaft 46 a of the rotating antenna driving means 46.

  The air gap 70 provided with the rotating antenna 26 is provided in the vicinity of the center of the heating chamber 28, and the heating chamber bottom surface 28 a so that the rotating antenna 26 does not protrude from the heating chamber bottom surface 28 a or the amount of protrusion is suppressed. Is being drawn. The depth and shape (round shape or square shape) to be drawn can be appropriately changed depending on the size of the rotating antenna 26, the microwave condition, and the like. In the present embodiment, a quadrangular shape is used.

  The gap 70 and the heating chamber 28 are separated by a partition plate 27. The partition plate 72 is provided to prevent the rotating antenna 26 from being touched when the user removes the table plate 24 for cleaning.

  The machine room 20 (see FIG. 4) is provided below the heating room 28 in a space between the heating room bottom face 28a and the bottom plate 21 of the main body 1, and includes a control board (not shown) and an inverter board 22 (FIG. 3). Reference), magnetron (not shown), rotating antenna drive means 46, weight detection means 25 (right weight sensor 25a, left weight sensor 25b, back weight sensor 25c), cooling means (fan device 15), etc. The parts necessary for heating are arranged.

  The cooling means is a fan device 15 in which a fan is connected to a motor attached to a bottom plate 21 of the machine room 20, and the cooling air blown by the fan device 15 is a magnetron or inverter board that generates heat in the machine room 20. 22, The weight detection means 25 and the like are cooled.

  The rotating antenna driving means 46 is a motor for driving the rotating antenna 26, and a synchronous motor and a gear for reducing the rotational speed are integrated.

  The weight detection means 25 measures the weight of the object to be heated placed on the table plate 24.

  The control board (not shown) is operated to cook food according to the input content from the input means 5, detects the state of the food and the state of the heating chamber 28 from each detection means, and then each heating The means and the driving means are operated as necessary.

  The temperature detection means 60 is installed on the upper side of the heating chamber 28, is equipped with an infrared sensor 61a, and measures the temperature of an object to be heated placed in the heating chamber 28.

  The outer frame 7 is a cabinet that covers the upper surface and the left and right side surfaces of the main body 1 of the heating cooker. The outer frame 7 is provided with a convex portion 29 (see FIG. 1) so that the wall surface is not affected by heat when installed so as to be adjacent to the wall surface constituting the installation space.

  The rear plate 10 is connected to the rear surface of the machine room 20 to form the rear surface of the outer frame 7, and an external exhaust duct 18 is provided on the upper portion.

  Further, the rear plate 10 is provided with a protrusion 10a (FIG. 2). The protruding portion 10a is provided on the rear plate 10 by, for example, drawing or the like so as to cover the cooling duct 50 (FIG. 3) through which the cooling air for cooling the temperature detecting means 60 passes.

  As shown in FIGS. 1, 2, 6 and the like, the external exhaust duct 18 is supplied with steam exhausted from an object to be heated, cooling air 39 after cooling the internal components of the main body 1, or exhaust 9 in the cabinet. An external exhaust port 8a for discharging is provided. The external exhaust port 8a is provided at least on the right side of the main body 1 in the left-right direction, that is, on the second exhaust port 8c.

  In the present embodiment including the above configuration, the flow for specifically reducing the exhaust temperature will be described based on the operation of cooking in the oven. In the microwave cooking, grill cooking, and steam cooking, the flow for lowering the exhaust temperature is the same, and the description is omitted.

  When an object to be heated is installed in the heating chamber 28 and oven heating is selected by the operation unit 5b of the input means 5, oven heating is started. As shown in FIG. 3, in the oven heating, the air in the heating chamber 28 is heated by a hot air heater (hot air heater upper 14a, hot air heater lower 14b) provided at the rear of the heating chamber 28 to heat the object to be heated. .

  The heated air exits the heating chamber 28 from the first exhaust port 8b (FIG. 5) on the upper surface of the heating chamber 28, passes through the exhaust channel 19 having one end communicating with the exhaust port 8b, and passes through the exhaust channel 19. The air enters the external exhaust duct 18 from the second exhaust port 8c (FIG. 5) communicating with the other end of FIG. Thereafter, the air is discharged from the external exhaust port 8a provided in the external exhaust duct 18 to the outside of the main body.

  The position of the external exhaust duct 18 facing the second exhaust port 8c has a lattice-like appearance but is not open. This is because if the external exhaust port 8a is provided immediately after the second exhaust port 8c, the temperature of the exhaust 9 that exits to the outside is not sufficiently cooled. Therefore, by providing the external exhaust port 8a closer to the center of the external exhaust duct 18 or slightly closer to the second exhaust port 8c from the center, the high-temperature exhaust 9 that has come out of the heating chamber 28 becomes the first exhaust port 8b, By passing through the exhaust path 19, the second exhaust port 8c, and the external exhaust duct 18, the temperature becomes low and can be discharged to the outside. Moreover, the design property can be improved by making the external exhaust duct 18 into a lattice shape in the left-right direction.

As shown in FIG. 6, the external exhaust port 8a of the external exhaust duct 18 has an angle (inclination). Specifically, the external exhaust port 8a itself has an angle in a predetermined direction, or the lattice-shaped portion downstream of the external exhaust port 8a is composed of a plurality of plate-like portions (or pieces) having an angle in the predetermined direction. Configure. As a result, the exhaust 9 flows smoothly upward and forward.
By setting the discharge direction of the exhaust 9 upward and forward, the exhaust does not hit the wall surface even when the back surface of the main body 1 is placed close to the wall surface of a house or furniture.

Further, as shown in FIG. 2, when the exhaust 9 passes through the external exhaust duct 18, it collides with the protrusion 10a, so that the flow of the exhaust 9 stays, so that the exhaust 9 flows from the external exhaust port 8a to the outside. The exhaust temperature can be further lowered before being discharged to the exhaust gas. The protrusion 10a provided on the rear plate 10 is provided so as to cover the cooling duct 50 provided on the rear side of the hot air heater 14a so as to prevent the heat transfer of the hot air heater 14a. Since cooling air that can cool the infrared sensor 61a flows in the cooling duct 50, it is possible to prevent the temperature of the protrusion 10a from rising, and the exhaust comes into contact with the outside of the protrusion 10a having a low temperature. The temperature of can be lowered efficiently.
That is, the distance of the external exhaust duct can be substantially shortened by providing a turning means for changing the direction in which the exhaust 9 flows between the second exhaust port 8c and the external exhaust port 8a of the external exhaust duct 18. .

  The protruding portion 10a is not limited to the protruding shape, and any shape can be adopted as long as the temperature detecting means 10 and the cooling duct 50 can be arranged such as a curved shape or a three-dimensional shape.

  Furthermore, the cooling air 39 (FIG. 2) which cooled the components in the machine room 20 is discharged from a position different from the external exhaust port 8a. In the present embodiment, the air is discharged from the end of the external exhaust duct 18. That is, the exhaust 9 is discharged to the outside from the center of the external exhaust duct 18 toward the second exhaust port 8c (to the right from the center), and the cooling air 39 is positioned at a position near the end of the external exhaust duct 18 (to the left). To the outside. As a result, the exhaust 9 and the cooling air 39 are separated from each other at the position where they are discharged to the outside, so that the cooling air 39 and the exhaust 9 from the heating chamber 28 can be efficiently discharged without being mixed.

As described above, according to the present embodiment, the heating chamber and the exhaust path having one end communicating with the downstream of the first exhaust port above the heating chamber and the other end communicating with the upstream of the second exhaust port, An external exhaust duct communicating downstream of the second exhaust port, wherein the external exhaust duct is formed with an external exhaust port, and the external exhaust port is formed closer to the center than the second exhaust port. In addition, a turning means is provided between the second exhaust port 8c of the external exhaust duct 18 and the external exhaust port 8a to change the direction in which the exhaust 9 flows.
Thereby, the temperature of exhaust_gas | exhaustion can be reduced efficiently over a comparatively short distance, and the installation property and safety | security of a heating cooker can be improved.

Further, in the turning means, a portion where the exhaust hits is made of at least one of resin or metal.
As a result, the heat of the exhaust is taken away by the protrusions before the exhaust is released to the outside, so that the exhaust temperature can be further lowered.

The exhaust is exhausted from the center of the external exhaust duct to the outside at a position near the second exhaust port, and the cooling air that has cooled the components in the machine room is the second exhaust of the external exhaust duct. It is discharged outside at a position near the end opposite to the mouth.
Thereby, since the position where the exhaust and the cooling air are discharged to the outside is separated, the cooling air and the exhaust from the heating chamber can be efficiently discharged without being mixed.

Moreover, a temperature detection means is provided in the upper part of the heating chamber, and the exhaust discharge position and the cooling air discharge position are separated by the temperature detection means.
Thereby, arrangement | positioning of a temperature detection means and an exhaust duct is made efficient, and the reduction | decrease in the capacity | capacitance of a heating chamber can be suppressed. Further, the cooling efficiency of the temperature detecting means is improved.

DESCRIPTION OF SYMBOLS 1 Main body, 7 Outer frame, 8 Exhaust port, 8a External exhaust port, 8b 1st exhaust port, 8c 2nd exhaust port, 9 Exhaust, 10 Rear plate, 10a Protrusion part (turning means), 18 External exhaust duct, 19 Exhaust path, 20 Machine room, 21 Bottom plate, 28 Heating room, 39 Cooling air

Claims (4)

A heating chamber;
An exhaust path having one end communicating with the downstream of the first exhaust port above the heating chamber and the other end communicating with the upstream of the second exhaust port;
An external exhaust duct communicating downstream of the second exhaust port,
The external exhaust duct is formed with an external exhaust port,
The external exhaust port is formed closer to the center than the second exhaust port,
A cooking device comprising a turning means for changing a flow direction of the exhaust between the second exhaust port and the external exhaust port of the external exhaust duct. A temperature detecting means is provided in the upper part of the heating chamber,
The cooking device according to claim 1, wherein the turning means covers a cooling duct that cools the temperature detecting means. The exhaust is discharged to the outside from the center of the external exhaust duct at a position near the second exhaust port,
The cooling air that has cooled the parts of the machine room is discharged to the outside at a position near the end of the external exhaust duct opposite to the second exhaust port. Cooking cooker.   4. The cooking device according to claim 3, wherein the exhaust discharge position and the cooling air discharge position are separated by the temperature detection means.

Images