JPS5949427A - High-frequency heater - Google Patents

Abstract

PURPOSE:To permit completely automatic heating as well as raise the operability and heating efficiency of a high-frequency heater by a method in which an infrared rays detection element and a solid image pickup element are provided in a heating chamber housed with an object to be heated and information of detection for an object to be heated on the way of heating from setting of initial setting elements is continuously obtained. CONSTITUTION:In through holes 3, CCD image sensor 4 as a solid image pickup element and an infrared temperature sensor 5 as an infrared rays detection element are provided. During the period before cooking is started, the presence and volume of a food 10 are detected by the sensor 4, the initial temperature is detected by the sensor 5, the detected information is sent to a controller 6, and the output level and time of heating are set up. Even during the heating period, information detected by the sensors 4 and 5 is received by the controller 6 and fedback to a magnetron and a timer. When that the heating condition of a food 10 becomes optimum is detected by the sensors 4 and 5, the ending signal of cooking is generated from the controller 6.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention has an infrared detection element as a temperature sensor and a solid-state image pickup element as an image sensor, and has fully automatic heating control. Start improving equipment.

[Technical background of the invention and its problems]

For example, a GL such as a microwave oven, a frequency heating device 1'7
In, the object to be heated! The power level of the heat cooking or the control of the cooking time, so-called IJ Le 1, ] is being advanced. This white cloth 111
In order to rationalize the process, it is necessary to understand the setting factors for the heated object, the initial state, and the ever-changing heating progress state.

Conventionally, for example, an infrared hot water temperature sensor, which is an infrared detection element, was installed in the heating chamber.
1. Detects 1 degree of body pain.

With this, we took a step forward towards becoming a top management.

However, the above-mentioned infrared hot water temperature sensor is used to detect c) degree changes in the heating progress state of the object to be heated, and the heating output level, power [i, especially the initial setting temperature such as 1141 when heated is It relies on information from the convenient shore (for example, manual input of keys to the operation panel).

By the way, recently, even if f, II: CCl) (Cla
Solid-state imaging devices called 7'L image sensors are widely used. child'
i1. Due to the photosensitive characteristics of the semiconductor element of the floating god, it is reflected from an object and is incident on its light receiving surface, yC scientific information t'
Divided into units of sharp numbers, it has a number of functions.In addition, if f'L is explained, in addition to the Wmi function converted to element 1, the element TQf,
It has a signal charge storage function that allows the signal converted into υ light to be stored in the photosensitive cell. This kind of CC
If the D image sensor is installed in a microwave oven, it is possible to obtain detection information on changes in the shape of the object to be heated from its initial state.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to achieve completely automatic heating by continuously obtaining detection information for the object to be heated during heating from the setting of initial setting elements. FIG. 9 is an attempt to provide a centered high-frequency heating device that improves operability and heating efficiency.

[Summary of the invention]

In the present invention, an infrared detector and a solid-state image sensor are installed in a heating chamber that stores objects to be heated. Heating control is performed by setting the setting elements and detecting all CJJt-like changes from the initial forest condition.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to all the drawings. 1 in Fig. 1 is the high frequency addition %, ji (equipment: 61f).

This is the main body of the microwave oven, and a heating chamber 2 is provided inside. A high frequency generator (not shown) is installed in this heating chamber 2, an IC body is mounted in one part between the front surfaces, and an operation panel is placed in the side part of the front panel. A pair of through holes 3, 3 are bored in the ceiling wall of the heating chamber 2, and a CCD image sensor 4, which is a solid-state imaging device, is installed in one of the through holes 3, and a CCD image sensor 4 is installed in the other through hole 3. The infrared temperature sensor 5, which is an infrared detection element, has its own fL detection part.The CCD image sensor 4 and the external temperature sensor 5 are also controlled (the phloem 6 is Connected.

This control section 6 is connected to the cylinder circumference Dυ generator and the operation panel in a pneumatic manner.

Then, 10 pieces of food to be heated are stored in the heating chamber 2, and 11 pieces of food are cooked. From pre-cooking to head chef (7 steps from cooking to completion)
0-Lri, as shown in FIG. That is, until the start of cooking, the CCLICCD image sensor 4
The presence or absence of the food 10 and its volume are detected, and the infrared humidity sensor 5 detects the entire initial temperature of the food 10. Each detection information is sent to the control unit 6, and tl2, heating output level and heating time are set. Heating is then started, but even during heating, the sensors 4 and 5 continuously detect the shape and temperature of the food 10, which changes every moment. Feedback to time-limiting devices such as For this reason, the heating conditions are modified as appropriate. Food 1
When each sensor 4, 5 detects that the heating state of 0 has become optimal, a signal indicating the end of A process is issued from the control unit 6.
．． Ru. Therefore, the food 10 must be completely automatically cooked.

In the above embodiment, the CCD image sensor 4 and the infrared temperature sensor 5 are provided at different positions so that detection information can be obtained alternately or simultaneously. However, the invention is not limited to this. It may be shown as follows. In other words, there is an opening at approximately the center of the ceiling of heating chamber 2.
2 a> Provide damper 7 and CCI facing this L.
Four JCCD image sensors are arranged in series. Evening above
The inside of the chamber 7 has a mirror finish, and CC
23 openings are opened and closed relative to the D image sensor 4. Further, an infrared temperature sensor 5 is disposed at a position where it can be detected within the heating chamber 2 at a full viewing angle when the damper 7 closes the opening 23 and is tilted at an angle of about 45 degrees.

Therefore, when the damper 7 opens the opening 28, the CCD
The image sensor 4 detects the food 10 in the heating chamber 2, and when the damper 7 closes the opening 28 and tilts at about 45 degrees, the infrared temperature sensor 5 detects the food 10? Detection Ding ^. In this way, each sensor 4 is
゜5 is each detection sound. Therefore, a plurality of sensors 4, 5 can be detected through the small opening 29 without detracting from the aesthetics. i: You can definitely get a samurai report.

In the above embodiment, CCI is used as the solid-state image sensor 4.
), but it is not driven by this, and for example, MOS (MetaOxide)
Sem1 conductor), CI
l) (Charge Injection)
evice) or B 13 I) (Bucket
Hrlgpde 1)evice) etc.

〔Effect of the invention〕

As explained above, according to the present invention, since an infrared detection element and a solid-state image sensor are installed in the heating chamber, it is possible to automate initial 111Jj settings such as power level and heating time, and to self-answer detection control during heating. Improved and achieved fully automatic heating, improving operability and heating efficiency? The effect of being able to figure out the effects.

4. Tri Jj on the drawing? -yz Description The first figure is a schematic cross-sectional front view of a 14-microwave oven which is a commercial frequency heating device showing one embodiment of the present invention, the second figure is a flowchart thereof, and the third figure is an electronic diagram showing another embodiment. This is a schematic vertical front view of the range.

2... Heating slip (, 10... Heated object (food), 5...
・・Infrared detection element (infrared rays?/7, degree center), 4・
...solid-state image sensor (CCI) image sensor).

Claims (1)

[Scope of Claims] (1.) An infrared detector element that detects all changes in temperature of the object to be heated stored in a heating chamber, and a solid-state sensor and sensor that detects changes in the shape and volume of the object to be heated. (2) The infrared detection element and the solid-state image sensor are connected to the object to be heated through one opening provided in the heating chamber. The high-frequency heating device 1T described in the first item of the scope of the patent Hfj is characterized in that all the features are detected.