JP2006025752A - Temperature-controlling mechanism for baking furnace in electric oven - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature-controlling mechanism for the baking furnace in an electric oven in which a plurality of temperature sensors are arranged in the horizontal direction of the baking furnace so that the temperatures responding to the kinds of cake dough may be controlled. <P>SOLUTION: In an electric oven where a raw substance to be baked is baked with the upper fire heater 6 arranged on the upper part of the baking room 2 and with the lower fire heater 7 arranged on the lower part of the baking room, a set-temperature controlling means is installed to adjust the temperature of baking room by processing the temperature information detected by the individual temperature sensors. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a temperature control mechanism of a firing furnace in an electric oven. More specifically, the present invention relates to a temperature control mechanism for a firing furnace in an electric oven that controls the temperature in the firing furnace using a plurality of upper and lower temperature sensors.

  Conventionally, the temperature control means of a baking furnace in an electric oven for baking confectionery and bread has been provided with a predetermined portion in the baking furnace for turning on and off the electric heaters for the upper and lower heaters assembled in the baking furnace, respectively. This is done by automatically controlling with a temperature sensor. An example of this kind of invention is shown in FIG. The electric oven 101 includes a plurality of baking units provided in the baking chamber 102, an electric heater 103 provided corresponding to each baking unit, a temperature sensor 104 provided corresponding to each baking unit, By processing the temperature information detected by the temperature sensor 104, a temperature adjuster 105 that adjusts the temperature of each firing unit is provided (see Patent Document 1).

JP 2001-175338 (abstract, FIG. 1)

  However, a temperature sensor is usually arranged at a distance of about 3 cm with respect to each electric heating oven. The temperature in the vicinity of this temperature sensor is detected, and the temperature information of each baking section is controlled by processing the temperature information. However, the temperature around the confectionery dough is lower than the baking temperature detected and controlled by the temperature sensor. There is a problem that the original taste of the confectionery is impaired due to a subtle temperature error in the initial stage by baking at a temperature.

  In addition, when a temperature sensor is placed in the middle of the baking section so as to be in the vicinity of the confectionery / bread dough, the temperature in the baking section rising by the electric heater is detected by the temperature sensor and temporarily controlled. In addition, there is a problem that the surface of the confectionery dough is scorched because the temperature falls after the baking temperature rises higher than the set temperature.

  As described above, when the temperature sensor is arranged in the upper part of the baking part or near the center, problems arise. However, there are various types of dough and baking methods for confectionery and bread. For example, in the case of shoe dough, a method of rapidly baking at the initial stage is used. In addition, a method of slowly baking in a sponge cake or the like, or a method of baking slowly at a high temperature after being rapidly baked in an initial stage is used. Therefore, depending on the type of confectionery, it may be more appropriate to detect the temperature in the vicinity of the confectionery dough even if the temperature temporarily rises above the set temperature, or to detect the temperature at the top if baked slowly. There is a problem that the temperature cannot be sufficiently controlled according to the type of the dough.

  The present invention was devised in view of the above points, and baking in an electric oven that enables temperature control according to the type of confectionery dough by arranging a plurality of temperature sensors in the vertical direction of the baking chamber. An object of the present invention is to provide a furnace temperature control mechanism.

  In order to achieve the above-mentioned object, the temperature control mechanism of the firing furnace in the electric oven according to the present invention is to fire the object to be fired by the heating part for the upper fire and the heating part for the lower fire arranged in the upper and lower parts of the firing chamber. In the electric oven, the temperature detection means by a plurality of temperature sensors arranged in the vertical direction of the baking chamber, and the set temperature for adjusting the temperature of the baking chamber by processing the temperature information detected by each temperature sensor Control means are provided.

  Here, a plurality of (usually two) temperature sensors are arranged in the vertical direction below the upper heating part, and the temperature is controlled based on the temperature information from each temperature sensor, thereby making the confectionery dough. It is possible to bake up according to the kind of.

  Further, by switching the temperature information by the respective temperature sensors, the finished state can be changed by changing the ambient temperature of the confectionery dough during baking.

  In the temperature control mechanism of the baking furnace in the electric oven of the present invention, the temperature at a position close to the confectionery dough when baking the surface of a shoe, cookie, or the like with a strong fire, based on temperature information by a plurality of temperature sensors arranged in the vertical direction. The set temperature control by the sensor is effective, and after the dough surface has been rolled up, baking according to the confectionery dough becomes possible by switching to the set temperature control by the temperature sensor at the normal position.

Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.
FIG. 1 is an explanatory cross-sectional view showing an example of an electric oven in a temperature control mechanism of a baking furnace in an electric oven to which the present invention is applied, and FIG. 2 is an electric heat of a heating part for upper fire and a heating part for lower fire in FIG. It is explanatory drawing which shows an example of the arrangement | sequence of a heater.

  The oven body 1 shown here is composed of several firing chambers 2 (three in this embodiment), and has an airtight structure in which an opening / closing door 4 is attached to the opening 3 of the firing chamber 2.

  The open / close door 4 has a lower end connected to and supported by a lower end edge of the opening 3, and the opening 3 can be opened and closed by a handle 5.

  Therefore, an upper heating unit 6 and a lower heating unit 7 are disposed above and below the firing chamber 2, and the upper heating unit 6 and the lower heating unit 7 are as shown in FIG. In addition, an electric heater 8 made of nichrome wiring is provided, and a temperature sensor 9 is arranged in the upper heating unit 6 and the lower heating unit 7, and the temperature sensor 9 detects the temperature. The temperature of the entire electric heater 8 is controlled.

  Therefore, as shown in FIG. 3, the lower heating unit 7 has a configuration in which an electric heater 8 and a temperature sensor 9 are sealed under the floor iron plate 10 of the baking chamber 2, and is connected to the temperature control substrate 11. On the other hand, the upper heating unit 6 is attached to the ceiling surface of the baking chamber 2 with the electric heater 8 without a shield.

  Then, a first temperature sensor 9A is installed at a position about 30 mm below the temperature sensor 9 of the heating unit 6 for the upper fire, and further a second position below the first temperature sensor 9B (about 30 mm in this embodiment). The temperature sensor 9 is installed.

  Next, the first temperature sensor 9 </ b> A and the second temperature sensor 9 </ b> B are connected to the temperature control board 11 by the changeover switch 12. This temperature control board 11 controls the temperature of the electric heater 8 of the lower heating unit 7 based on the temperature information from the temperature sensor 9 installed in the lower heating unit 7, and the first switch 12 is used for the first control. Based on the temperature information from the temperature sensor 9A or the second temperature sensor 9B, the temperature control of the electric heater 9 of the heating part 6 for upper fire is performed.

  Therefore, when temperature control is performed based on the temperature information of the first temperature sensor 9A, the temperature around the confectionery dough (not shown) placed on the floor iron plate 10 in the baking chamber 2 is the first temperature. Thus, temperature control is always performed in a state where the temperature is lower than the temperature around the temperature sensor 9A.

  When temperature control is performed based on the temperature information of the second temperature sensor 9B, the temperature around the confectionery dough (not shown) placed on the floor iron plate 10 in the baking chamber 2 is the second temperature. The temperature control is performed in almost the same state as the temperature detected by the temperature sensor 9B.

  The number of temperature sensors installed in the heating part for the upper fire is not necessarily two in the vertical direction. Any number (two or more) can be used as long as the temperature up to the periphery of the confectionery dough can be detected in multiple stages. It does not matter.

  In the oven body detailed in the present embodiment, the doors are provided only on one side, but it may be a double door type in which the doors are provided on both sides of the oven body.

  In the temperature control mechanism of the baking furnace in the electric oven of the present invention having the above configuration, the confectionery dough 13 is placed on the floor iron plate 10 of the baking chamber 2 as shown in FIG. Therefore, for example, when baking cookie confectionery dough, it is necessary to bake the confectionery dough surface with high heat in the initial stage (about 10 minutes). In this case, the changeover switch 12 causes the second temperature sensor 9B to be baked. And the temperature control board 11 are connected.

  Then, temperature control is performed on the set temperature based on the temperature information of the second temperature sensor 9B, and baking is performed in a state where the temperature around the confectionery dough 13 is substantially the same. In this case, the baking temperature temporarily rises above the set temperature, but the confectionery do not get burnt because of the initial stage.

  After the initial stage is completed, as shown in FIG. 5, the first temperature sensor 9 </ b> A and the temperature control board 11 are connected by the changeover switch 12, thereby setting the temperature based on the temperature information of the first temperature sensor 9 </ b> A. Temperature control is performed. In this case, a temperature difference occurs depending on the distance between the first temperature sensor 9A and the periphery of the confectionery dough 13, but this is a stage where the inside of the confectionery dough is baked carefully over time (about 30 to 40 minutes). In addition, by firing at a temperature slightly lower than the set temperature, the surface is crisp and the interior is moist.

  In addition, since the confectionery dough such as sponge cake is a liquid dough in the initial stage, by performing the set temperature control by the second temperature sensor, the baking is performed at the temperature almost the same as the set temperature. Can lift the confectionery dough.

  Then, after the initial stage is finished, the set temperature is controlled based on the temperature information of the first temperature sensor 9A, so that the inside is moistened.

It is sectional explanatory drawing which shows an example of the electric oven in the temperature control mechanism of the baking furnace in the electric oven to which this invention is applied. It is explanatory drawing which shows an example of the arrangement | sequence of the electric heater of the heating part for upper fires in FIG. 1, and the heating part for lower fires. It is explanatory drawing which shows an example of the temperature control mechanism of the baking furnace in the electric oven to which this invention is applied. It is explanatory drawing which shows the action state by the 2nd temperature sensor in the temperature control mechanism of the baking furnace in the electric oven to which this invention is applied. It is explanatory drawing which shows the action state by the 1st temperature sensor in the temperature control mechanism of the baking furnace in the electric oven to which this invention is applied. It is explanatory drawing which shows an example of the temperature control mechanism of the baking furnace in the conventional electric oven.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Oven body 2 Baking chamber 3 Opening part 4 Opening / closing door 5 Handle part 6 Heating part for upper fire 7 Heating part for lower fire 8 Electric heater 9 Temperature sensor 10 Floor iron plate 11 Temperature control board 12 Changeover switch

Claims (3)

In the electric oven for firing the object to be fired by the heating part for the upper fire and the heating part for the lower fire arranged in the upper and lower parts of the firing chamber,
Temperature detection means by a plurality of temperature sensors arranged in the vertical direction of the baking chamber;
A temperature control mechanism for a firing furnace in an electric oven, comprising temperature setting means for adjusting the temperature of the firing chamber by processing temperature information detected by each of the temperature sensors. The temperature control mechanism of the baking furnace in the electric oven according to claim 1, wherein temperature information of a plurality of temperature sensors arranged in the vertical direction of the baking chamber can be arbitrarily switched. The said temperature sensor is arrange | positioned in the heating part for lower flames. The temperature control mechanism of the baking furnace in the electric oven of Claim 1 or 2 characterized by the above-mentioned.

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