JP2850812B2 - Cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device provided with a heater.

[0002]

2. Description of the Related Art A conventional heating cooker of this type is disclosed in
What was shown in -178529 was common. Hereinafter, the configuration will be described with reference to FIG.

[0003] As shown in FIG. 7, a tubular heater 3 is provided above a heating chamber 2 for accommodating an object 1 to be heated, and a reflector 4 is provided above the heating chamber. The object to be heated 1 is a mounting table 5
It is placed on.

With such a configuration, the object to be heated is heated by both the component radiated directly from the heater 3 and the component reflected by the reflector 4.

[0005]

However, as described above, when the object to be heated 1 is uniformly heated by the heater 3 to make the surface brown, the light from the reflection plate 4 reaching the object to be heated 1 is reduced. The reflected wave must irradiate the entire object 1 to be heated.

In such a conventional configuration, there is no problem if the object to be heated has a relatively low moisture content and a small heat capacity, such as a toast, but it has a high moisture content and a large heat capacity, such as a hamburger. However, when an attempt is made to form a desirable brown color on the surface, it takes a very long time and the internal temperature rises to near the surface temperature. As a result, foods like hamburger steaks the surface and the inside is moist and juicy. There was a problem that the taste was inferior.

[0007] The present invention in order to solve such conventional problems, the invention described in claim 1, to form a browning in a short time on the surface of the object to be heated, the concentration of the reflected waves from the heater The purpose of the present invention is to reduce color unevenness and improve color unevenness.

[0008] In the invention according to claim 2, intended to form a uniform browning a short form a browning, yet wide range on the surface of the object to be heated.

[0009] In the invention of claim 3 is intended to form a browning in a short time on the surface of the object to be heated, yet forms a periphery to uniformly browning of irradiation range of the reflection plate .

[0010] In the invention described in claim 4, to form a browning in a short time on the surface of the object to be heated, moreover aims to raising the internal temperature to the appropriate state.

[0011]

In order to solve the above-mentioned problems of the prior art, the present invention provides a mounting table for mounting an object to be heated, a plurality of rod-shaped heaters for heating the object to be heated, A reflector for converging the electromagnetic wave from the heater toward the object to be heated, and rotating the reflector around the heater.
A driving source for moving the reflection plate, wherein the reflection plate moves asymmetrically.
This is a heating cooker having a high quality. And heated
The reflected portion of the heater converged on the surface of the object moves on the object to be heated.
The temperature rise rate of the entire surface can be increased because
You.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, the surface of the object to be heated is heated more than the center of the object to be heated in a shorter time than in the prior art by making the reflecting plate movable . Is to form a scorched color on the surface portion.

The invention according to a first aspect of the present invention provides a mounting table for mounting an object to be heated, a plurality of rod-shaped heaters for heating the object to be heated, and electromagnetic waves from the heater to the object to be heated. A heating plate including a reflector that converges forward and a drive source that rotates the reflector about the heater, wherein the reflector is a heating cooker having a configuration that moves asymmetrically; Since the reflecting portion of the heater converged on the surface moves on the object to be heated, the rate of temperature rise on the entire surface can be increased.

According to a second aspect of the present invention, there is provided a mounting table for mounting an object to be heated, a heater for heating the object to be heated, and an electromagnetic wave from the heater converging toward the object to be heated. A reflector and a drive source for moving the reflector, wherein the heating cooker has a configuration in which the focal length is variable with the movement of the reflector, and may be provided at any location on the surface of the object to be heated. Since the reflection component of the heater converges, the rate of temperature rise over the entire surface can be increased, and a uniform temperature distribution can be obtained.

According to a third aspect of the present invention, a mounting table for mounting an object to be heated, a heater for heating the object to be heated, and an electromagnetic wave from the heater converging toward the object to be heated. A heating cooker comprising a reflector, a drive source for rotating the reflector about the heater, and a link mechanism for transmitting the rotational force of the drive source to the reflector. Since the movement is converted by the link mechanism into a movement that draws a SIN curve, the moving speed of the reflector is lost when the moving direction of the reflector is reversed, and the irradiation time of the reflector to the object to be heated is lengthened. be able to.

According to a fourth aspect of the present invention, a mounting table for mounting an object to be heated, a heater for heating the object to be heated, and an electromagnetic wave from the heater converging toward the object to be heated. A heating unit having a reflector, a drive source for rotating the reflector about the heater, and a transmission unit for transmitting a rotational force of the drive source to the reflector, wherein the rotation of the drive source can be controlled; By controlling the rotation of the driving source, the surface of the object to be heated can be uniformly heated, and the surface and the internal temperature can be heated in an optimal state.

Hereinafter, a reference example of the present invention will be described with reference to FIGS. ( Reference Example 1) FIG. 1 is a sectional view of Reference Example 1 of the present invention. In the figure,
A tubular upper heater 3 in which a resistance wire is protected or sealed with a glass or ceramic tube at the upper part of a heating chamber 2 that accommodates an object 1 to be heated.
And a reflection plate 4 made of an aluminum-plated steel plate or stainless steel is provided above the heating chamber 2.
The object to be heated 1 is mounted on a mounting table 5 such as a plate, a net or a skewer made of a stainless steel, aluminum or iron plate or wire. Reference numeral 6 denotes a lower heater for heating from below. The cross section of the reflector 4 forms a parabola, and the electromagnetic wave from the upper heater 3 is reflected by the reflector 4 and converges toward the object 1 to be heated. Distance H1 from upper heater 3 to converging section 1
Is shorter than the distance H2 from the upper heater 3 to the mounting table 5. This dimension is set to 15 mm in Reference Example 1, but is determined to be 10 mm to 30 mm based on the standard thickness of the object to be heated.
It is preferable to set the range. It is most preferable that the reflector or the mounting table can be controlled up and down by the thickness of the object to be heated so that the converging portion is located on the surface of the object to be heated.

The operation of the above configuration will be described. The upper heater 3 and the lower heater 6 simultaneously or alternately heat the object 1 to be heated. In particular, in the heating example in which the surface is to be browned, the upper heater 3 is used first. Baking is performed until the surface of the object to be heated 1 has an appropriate scorched color, from which the upper heater 3 and the lower heater 6 alternately heat. The first heating by the upper heater 3 is performed in the vicinity of a temperature (about 850 ° C.) at which far-infrared rays which are easily absorbed on the surface of the object 1 to be heated, and includes both a direct component and a reflected component from the heater 3. Heat energy is to be heated 1
Heat the surface. In particular, since the reflection component converges on a portion including the surface of the object 1 to be heated, the surface temperature rises rapidly,
The process of dehydration and formation of a burnt color proceeds. Since this process proceeds in a short time, the heat conduction from the surface to the inside is small, and it is possible to reproduce a temperature change as in the case of baking in a frying pan. When an appropriate degree of browning is obtained, the upper heater 3 and the lower heater 6 are alternately energized to heat the inside to increase the temperature, so that the inside can be moistened.

[0019] be described with reference to Reference Example 2 Reference Example 2 of the present invention FIG.

[0020] FIG. 2 is a sectional view of Example 2 of the present invention.
Reference Example 2 differs from Reference Example 1 in that the upper heater 3
The convergence position A of the reflection component by the reflector 4 is separated from the point B connecting the upper heater 3 and the mounting table 5 at the shortest distance.

According to Example 2 of the present invention, the B point connecting the worktable 5 and upper heater 3 direct component of the electromagnetic wave from above the heater 3 in the shortest distance as the maximum, decays as go away. Therefore, in a state where there is no reflection component, the burnt color is the strongest at point B, and becomes thinner away from point B. Therefore, by moving the point A where the reflection component converges away from the point B, the concentration of the electromagnetic wave can be relieved, and the range in which the color is scorched can be widened. In this reference example, the distance H3 between the point A and the point B is set to 20 mm, but it is 10 to 30 m from the standard size of the object 1 to be heated.
It is preferable to set the range to about m. When two upper heaters are used, the heat distribution tends to be strong on the inside, so that the point A is outside the point B.

Reference Example 3 A reference example of the present invention will be described with reference to FIG.

[0023] FIG. 3 is a sectional view of Example 3 of the present invention.
The difference between the reference example 3 and the reference example 2 is that the reflection component of the reflection plate 4 is converged at points A1 and A2 sandwiching the point B connecting the upper heater 3 and the mounting table 5 at the shortest distance. is there. According to Example 3 of the present invention, the B point connecting the worktable 5 and upper heater 3 direct component of the electromagnetic wave from above the heater 3 in the shortest distance as the maximum, decays as go away. Therefore, in a state where there is no reflection component, the burnt color is the strongest at point B, and becomes thinner away from point B. Therefore, the points A1 and A2 where the reflection component converges are set to two points, and B
By moving away from the point, the concentration of the electromagnetic wave can be further softened and the range in which the color is burnt can be widened. In this embodiment, A1
The distance H4 between the point A2 and the point A2 is set to 40 mm, but is preferably set to a range of about 20 to 60 mm from the standard size of the object 1 to be heated.

An embodiment of the present invention will be described with reference to FIGS.
Will be explained. (Example 1) Example 1 of the present invention with reference to FIG. 4 will be described.

FIG. 4 is a sectional view of Embodiment 1 of the present invention.
Each of the pair of reflectors 4 is configured to rotate around the upper heater 3. The reflector 4 is connected to the two upper heaters 3 by levers 7 having the same pitch and always rotates at the same angle.
Is connected to a lever 8, and one end of the lever 8 is connected to a cam 9. The cam 9 is connected to a shaft of a motor 10 which is a driving source.

The operation of the above configuration will be described. The reflection component of the electromagnetic wave radiated from the upper heater 3 converges on the object 1 to be heated, but the reflector 4 rotates about the upper heater 3 with the rotation of the motor 10. Then the convergence point moves. With the above configuration, the temperature of the surface of the object to be heated 1 can be rapidly increased, and the entire object to be heated 1 can be uniformly heated while forming a scorched color.

[0027] (Example 2) Example 2 of the present invention with reference to FIG. 5 will be described.

FIG. 5 is a partial sectional view of a second embodiment of the present invention. FIG. 5A shows a state in which a reflecting plate is provided vertically (B).
Indicates a state in which the reflection plate is provided obliquely. Example 2
The second embodiment differs from the first embodiment in that a guide hole 11 is provided in the side wall of the reflection plate 4 and a guide pin 12 is provided in the main body. The guide hole 11 is shaped so as to be more radially away from the center of the upper heater 3 toward both ends. The distance between the center of the upper heater 3 and the reflecting surface of the reflecting plate 4 is M1> M2
The distance between the upper heater 3 and the convergence point of the reflection component is H1.
<H2.

When the state changes from (a) to (b), the guide hole 11 of the reflecting plate 4 moves along the guide pin 12, so that the distance between the reflecting surface of the reflecting plate 4 and the center of the upper heater 3 is M1. To M2. As a result, the position at which the reflected electromagnetic wave converges from H1 to H2 due to the characteristics of the parabolic mirror becomes longer, and the electromagnetic wave of the reflected component can always be converged on the surface of the object 1 to be heated even when the reflecting plate 4 is inclined. it can.

[0030] (Example 3) Example 3 of the present invention with reference to FIG. 4 will be described.

FIG. 4 is a sectional view of Embodiment 3 of the present invention.
The reflecting plate 4 is configured so that the rotation of the motor 10 is linearly moved by a link mechanism using the levers 7 and 8 and the cam 9. With this configuration, since the levers 7 and 8 are converted into the movement of the velocity component that draws the SIN curve, when the moving direction of the reflector is reversed, the moving speed of the reflector becomes 0, and the irradiation of the reflector to the object to be heated is performed. Time can be lengthened. Since the direct component from the upper heater 3 attenuates as the distance from the upper heater 3 increases, the reflected component covers the component, and the object 1 can be uniformly heated over a wide range.

[0032] Example 4 (Example 4) The present invention with reference to FIG. 6 will be described.

FIG. 6 is a block diagram of a fourth embodiment of the present invention. A control circuit 13 controls the motor 10 and the upper heater 3. The speed of the motor 10 can be changed or stopped during heating. In addition, the sensor 14 that detects information such as temperature, water vapor amount, weight change, and change in odor component during cooking controls the rotation of the detection motor 10 and also controls the power of the upper heater 3 and the like,
It can be cooked to an appropriate finish.

[0034]

All of the invention described in the claims of the invention as described in the foregoing is Ru can form browning in a short time on the surface of the object to be heated.

In addition, the invention described in claim 1 can reduce the concentration of reflected waves from the heater and improve color unevenness, and the invention described in claim 2 can be added. A burnt color can be formed uniformly over a wide range.

In addition, the invention described in claim 3 can form a burnt color even to the peripheral portion of the irradiation area of the reflector, and the invention described in claim 4 additionally has an internal The temperature can be raised to an optimal state.

[Brief description of the drawings]

Sectional view of the heating cooker in Reference Example 1 of the present invention

Sectional view of the heating cooker in Reference Example 2 of the present invention; FIG

Sectional view of the heating cooker in Reference Example 3 of the present invention; FIG

FIG. 4 is a cross-sectional view of the cooking device according to the first and third embodiments of the present invention.

5 (a) cross-sectional view of the reflector of the heating cooker is oblique in Example 2 of the heating sectional view of reflector vertical cooker (b) the present invention in Embodiment 2 of the present invention

FIG. 6 is a block diagram illustrating a configuration of a heating cooker according to a fourth embodiment of the present invention.

FIG. 7 is a sectional view of a conventional cooking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heated object 2 Heating chamber 3 Upper heater 4 Reflector 5 Mounting table 7, 8 lever 9 Cam 10 Motor 11 Guide hole 12 Guide pin 13 Control circuit 14 Sensor

Claims (4)

(57) [Claims] 1. A mounting table for mounting an object to be heated, a plurality of rod-shaped heaters for heating the object to be heated, and a reflector for converging electromagnetic waves from the heater toward the object to be heated.
A heating source comprising: a drive source for rotating the reflection plate around the heater; wherein the reflection plate moves asymmetrically. 2. A mounting table for mounting an object to be heated, a heater for heating the object to be heated, a reflecting plate for converging electromagnetic waves from the heater toward the object to be heated, and moving the reflecting plate. And a drive source for causing the focal length to be variable with movement of the reflector. 3. A mounting table for mounting an object to be heated, a heater for heating the object to be heated, a reflector for converging electromagnetic waves from the heater toward the object to be heated, and A heating cooker having a drive source that rotates around a heater and a link mechanism that transmits the rotational force of the drive source to the reflector. 4. A mounting table for mounting an object to be heated, a heater for heating the object to be heated, a reflector for converging electromagnetic waves from the heater toward the object to be heated, and A heating cooker comprising: a drive source that rotates around a heater; and a transmission unit that transmits the rotational force of the drive source to the reflection plate, wherein the rotation of the drive source can be controlled.