JP2011174841A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein swing speed of an infrared sensor cannot be increased and the result becomes poor because of a small number of detection times in a heating cooker having high output and short heating time. <P>SOLUTION: In the heating cooker, swing speed of the infrared sensor 6 is increased and measurement points are shifted between forward and return passages, and data of adjacent measurement points in the forward passage are averaged and are handled as data of measurement points in the return passage, thus increasing the number of measurement points and enhancing a temperature detection function. As is clear also from the above configuration, temperature can be detected more accurately in the heating cooker. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cooking device having an infrared sensor that swings and detects the temperature of food, and more particularly to a cooking device having a detection timing that improves detection performance when the swing speed is increased.

  Conventionally, this type of cooking equipment, for example, an oven microwave oven that heats an object to be heated by a heater, microwave, or the like, is equipped with an infrared sensor that detects the temperature of food in order to stop heating when it reaches an appropriate temperature. Yes. This infrared sensor needs to uniformly detect the upper surface of the dish cradle for loading food. For this reason, there are ones that sequentially detect the temperature on the tray support by a biaxial drive mechanism, and ones that detect the temperature of the top surface of the tray support by swinging a plurality of serial infrared sensors on one axis.

JP 2003-141656 A JP 2005-283117 A

  However, a high-power oven microwave oven has a short time from the start of heating until the food reaches an appropriate temperature, and the number of swings of the infrared sensor is small, so detection may be delayed. For this reason, the sensor swing width was changed to detect a part of it, but this method could not be used for large foods.

  On the other hand, even if the swing speed was increased, the processing time of the captured detection data did not change, so the number of measurement points could not be increased.

  The present invention solves the above-mentioned conventional problems, and while increasing the speed of the swing, by changing the location of the measurement point of the outward path and the measurement point of the return path, the measurement points are not reduced, and the measurement point of the forward path The data between them is arithmetically averaged and replaced with the return point measurement point data. On the other hand, the return route is replaced with the forward point data, so that one point of measurement point data can be output for each swing. The object is to provide a cooking device that can detect the temperature appropriately.

  To achieve the above object, the present invention provides a heating chamber, heating means for heating an object to be heated in the heating chamber, a door for opening and closing the heating chamber, an electrical component for controlling the heating means, and an object to be heated in the heating chamber. Out of cooking equipment with a drive mechanism that swings the infrared sensor itself so that the infrared sensor can detect the top of the dish evenly, and an infrared sensor that detects the temperature of the surface of the dish , The timing of detecting the temperature of the object to be heated is made different between the forward path and the return path of the swing, and the different measurement points are replaced with the arithmetic average of the two measurement points adjacent to the forward path in the forward path. Thus, data is output for each swing, as many times as the sum of the measurement points for the forward path and the return path.

As a result, even if the swing speed is increased, the measurement points that could not be detected during the calculation process can also be used by using the data that was captured when the swing was reversed.
Fine detection is possible.

  Since the present invention has high output, even if the swing speed of the infrared sensor is increased, detection can be performed by the number of conventional measurement points, and heating control according to the set temperature is possible.

Configuration schematic diagram of cooking device according to Embodiment 1 of the present invention The conceptual diagram of the detection method by the infrared sensor of the heating cooking appliance in Embodiment 1 of this invention

  The first invention includes a heating chamber, heating means for heating an object to be heated in the heating chamber, a door for opening and closing the heating chamber, an electrical component for controlling the heating means, and an object to be heated in the heating chamber. Of the high-frequency heating equipment that has a drive mechanism that swings the infrared sensor itself so that it can detect the entire surface of the dish, the infrared sensor that detects the temperature of the dish, the infrared sensor that detects the temperature of the surface of the dish, and so on. The timing of detecting the temperature of the heated object is made different between the forward path and the return path of the swing, and different measurement points are replaced by the arithmetic average of the measurement points of the two adjacent points in the forward path and the return path are Data is output for each swing as many times as the sum of the measurement points for the forward and return paths.

  As a result, even if the swing speed is increased, the measurement points for which the acquired data cannot be detected during the calculation process can be detected finely by using the data acquired when the swing is reversed and returned.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
In FIG. 1, reference numeral 1 denotes a heating apparatus main body, which is provided with a heating chamber 2 for heating an object to be heated by a heating means (not shown) such as a heater, high-frequency power, or steam. A door 3 opens and closes the heating chamber 2, and a handle 8 is provided at the upper center of the door 3 so that the user can freely open and close the door. Reference numeral 4 denotes an electrical component that contains a heating means, which is provided at an appropriate position of the apparatus main body.

  Reference numeral 5 denotes an operation unit provided above the door 3 of the heating apparatus main body 1, which operates the heating means and the like with the electrical unit 4. The wall surface of the heating chamber 2 is provided with a small hole 9 containing an infrared sensor 6 for detecting the temperature of the object to be heated on the bottom surface of the heating chamber 2. An infrared sensor 6 is provided inside the device outside the heating chamber 2. The infrared sensor 6 is provided with a swing mechanism (not shown) for swinging in order to detect the temperature of the bottom surface of the heating chamber 2 uniformly.

  FIG. 2 is a plan view of the heating chamber, and shows the entire measurement points obtained by overlapping the measurement points when the infrared sensor 6 is swung (outward) and the measurement points when swinging (return). In addition, the positional relationship between the forward path measurement point and the return path measurement point is also shown.

  In the case of the positional relationship shown in FIG. 2, the arithmetic average of the data of A1 and A2 at the measurement points adjacent to the forward swing direction is used as the data of a1 which is the measurement point of the return swing direction. On the contrary, the data obtained by arithmetically averaging the data of the adjacent measurement points d3 and d4 with respect to the swing direction of the return path is defined as the data of the forward path D4.

  In this way, the measurement values of the adjacent coordinates on the forward path are obtained by calculation and replaced with the portion corresponding to the coordinates of the measurement values on the return path. Similarly, for the return path, the calculated temperature is replaced with coordinates corresponding to the forward path.

  As a premise, it should be detected in the order of A1, a1, A2, a2, A3, a3... In the one-way swing, but it takes time until the temperature is determined after the data is detected. Since the detection cannot be performed during the calculation, in order to detect A1, a1, A2, a2, A3, a3,..., The swing must be swung at a speed at which the calculation ends while swinging (moving) from A1 to a1. There is a limit to the swing speed. On the other hand, in the case of a high-power high-frequency cooking device, the temperature rise speed of the object to be heated is fast, and compared with that, the scanning speed in the heating chamber is slow, so the number of scans is reduced.

  In order to eliminate this problem, the swing speed is increased, and when one-way swing is performed, A1, A2, A3,... Are scanned, and when returning, a6, a5, a4,. Then, the data scanned immediately before is averaged and applied to measurement points that cannot be measured.

  As is clear from the above configuration, in this cooking device, even if the swing speed of the infrared sensor is increased, it can be detected with the same measurement point data as in the past, and even in a high-output high-frequency cooking device. Accurate sensor heating.

  In these embodiments, it goes without saying that synergistic effects can be obtained by combining the functions.

  The cooking device according to the present invention, which has a high output and a short heating time, can be used for devices such as a device for controlling the temperature with an infrared sensor, a microwave oven and an electric oven.

DESCRIPTION OF SYMBOLS 1 Heating apparatus main body 2 Heating chamber 3 Door 4 Handle 5 Operation part 6 Infrared sensor 9 Small hole for infrared sensors

Claims (1)

With the high-frequency heating device, the timing to detect the temperature of the object to be heated is different between the forward path and the return path of the swing, and the different measurement points are the measurement points of the two adjacent measurement points on the return path. By replacing with the arithmetic mean, data is output for each swing for the number of the sum of the measurement points for the forward path and the backward path. A cooking device characterized in that accurate temperature detection is possible because the data of measurement points can be obtained even if the swing is performed early.