JP3101559B2 - grill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the temperature of a food.
The present invention relates to a grill having a device for measuring the temperature of a cooked food. In particular, a group that can accurately grasp the initial temperature rise gradient of cooked foods while minimizing measurement temperature variations due to disturbance .
About Lil .

[0002]

2. Description of the Related Art In a cooking device such as a grill or an oven, the temperature of a food is measured during cooking. This is because the automatic cooking is performed by detecting the baking of the food or grasping the characteristics of the food from the temperature rise curve at the beginning of the cooking. In the latter case, a temperature sensor is used to detect the surface (or internal) temperature of the fish,
The temperature rise and the elapsed time are processed by a microcomputer to calculate the temperature rise gradient, the type of fish is determined based on the value of the rise gradient data thus obtained, and the grilling of the fish is completed based on the grilling time determined in the determination mode.

There are various methods for arranging temperature sensors, and an example will be described. FIG. 2 is a schematic diagram showing an outline of a conventional cooking temperature measuring device provided with a temperature sensor in a grill portion of a grill. A grill 11 is placed flat in a grill box 5 in the grill 1. Food 9 in grill 11
(Fish) is placed, and the food 9 is heated (radiated and convected) by the burner 7 to cook the food 9. The temperature sensor 13 includes a protective tube 17
Is housed in the tip of the The distal end of the protective tube 17 is in contact with the lower surface of the food 9 (there is also a type of piercing).
A lead wire 15 for transmitting a signal from the temperature sensor passes through the protection tube 17.

[0004]

As described above, the temperature rise of the food is detected by using the temperature sensor. However, it is necessary to accurately obtain the temperature data at that time. This is the first condition. However, rather than the surface temperature of the fish,
The temperature detected by the temperature sensor is easily affected by the surrounding radiant heat, and the temperature detected by the sensor varies, so that an appropriate temperature increase cannot be obtained and the fish species is easily erroneously determined. That is,
As shown by the arrow in FIG. 2, the unstable flow of heat is also generated by the convection on the lower surface of the grill 11, which affects the temperature of the protective tube 17, and eventually the temperature sensor 13 is protected. It receives the disturbance of the radiant heat from the tube 17.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a grille capable of accurately grasping the initial temperature rise gradient of a cooked food while minimizing variations in measured temperature due to disturbance.

[0006]

In order to solve the above problems, a grill according to the present invention is provided for cooking foods placed on a grill.
Has a cooking temperature measuring device that detects the temperature,
Automatically adjusts the characteristics of the food from the first temperature rise curve
A grill for performing cooking, wherein the cooking temperature measuring device comprises:
A protective tube laid on the underside of the grill, the tip of which protrudes above the grill, a temperature sensor placed inside the tip of the protective tube, and a signal from the temperature sensor inserted into the protective tube are read. And a heat shield ring surrounding the protection tube extending from a tip end of the protection tube to a falling portion below the grill.

[0007]

That is, a heat shield ring is provided in the vicinity of the temperature sensor of the protective tube to suppress fluctuations in convective heat and radiant heat applied to the heat shield ring. This allows the temperature sensor to:
The temperature of the food can be more accurately detected than before, and the initial temperature rise gradient of the food can be accurately grasped.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically. FIG. 1 is a diagram schematically showing a structure of a grill provided with a cooked food temperature measuring device according to one embodiment of the present invention.
(A) is a schematic diagram of the inside of a grill storage, (b) is a detailed sectional view around a temperature sensor. The grill 1 has a box shape as a whole, and a left side surface in the figure has a lower fulcrum (not shown).
Is a grill door 3 which rotates around the center. Inside the grill 1 is a heating chamber called a grill storage 5.

A burner board 7 is provided on the ceiling of the grill storage 5 so as to cover the center of the ceiling. The burner board 7 is configured such that a large number of holes are formed in a ceramic board excellent in infrared radiation, and the flame of the gas burner comes out from the holes to the bottom. A grill 11 is provided in the middle of the grill warehouse 5 so as to extend almost entirely in the grill warehouse. The food 9 such as fish is placed on the grill 11 and cooked. The grill 11 is made of stainless steel or rust-proof steel. At the lower part of the grill 11, there is placed a soup tray 31 for receiving soup produced when baking fish or meat.

A description will now be given of a grill temperature measuring device for a grill shown in FIG. The cooking temperature measuring device of this embodiment has a protection tube 20 laid on the lower surface of the grill 11, the tip 16 of which protrudes above the grill 11 by a predetermined dimension, and is disposed in the tip 16 of the protection tube 20. The temperature sensor 13, the lead 15 inserted into the protection tube 20, which leads the signal of the temperature sensor 13, and the protection from the projecting end 16 of the protection tube 20 to the falling portion 20 below the grill 11 And a heat shield ring 19 surrounding the periphery of the pipe 20.

That is, the distal end 16 of the protective tube 17 projects about 5 mm above the grill 11 and a temperature sensor 13 (thermistor, thermocouple, etc.) is disposed in the distal end. Then, the protection tube 17 is lowered below the grill 11 (falling portion 20) and extends below the grill 11 toward the grill storage. The protection tube 17 is connected to a connector 21 at a lower portion near the grill door 3. The connector 21 is detached from the counterpart fixed connector 23 when the grill 11 is removed, and the protective tube 15 is also removed together with the grill 11.

A skirt-shaped heat shield ring 19 is provided around the falling portion 20 of the protection tube. Heat shield ring 19
Is made of stainless steel plate, etc., the height is about 10mm,
The diameter (width) is about 15 mm. A part of the heat shield ring is cut out (a cutout portion 18), through which a protective tube 17 passes laterally. Examples of a method of attaching the heat shield ring 19 include a caulking method, a brazing method, and an integral molding method.
I will give it to the Lord. The temperature sensor 13 has an upper surface surrounded by a cooking object and a side surface surrounded by a heat shield ring 19, so that the influence of radiant heat from the surroundings can be suppressed. Is obtained.

FIG. 3 is a graph showing an example of the measured value of the temperature sensor display temperature at the beginning of heating and cooking with and without the heat shield ring. The horizontal axis represents time (seconds) after the start of cooking, and the vertical axis represents temperature rise (° C.). The three dashed lines at the top of the graph show the temperature rise curves without the heat shield ring, and the three solid lines at the bottom show the temperature rise curves with the heat shield ring. In addition, cooking thing is Ajimaru ・ 1
6 tails, almost the same weight, without heat shield ring
It is the result of measuring three tails with tail and heat shield ring.

As can be seen from FIG. 3, the temperature rises more without the heat shield ring than with the heat shield ring. However, this is because the temperature of the food itself does not easily rise, but the temperature sensor indicates a temperature higher than the surface temperature of the food due to the influence of ambient heat. Next, when there is no heat shield ring, the variation of the rising curve is extremely large. In the uppermost curve and the lowermost curve, the temperature is separated by about 1.5 ° C. 60 seconds after the start of cooking. This is about 50% of the 3 ° C. temperature rise in the bottom curve. On the other hand, in the case where the heat shield ring is provided, it can be clearly understood that the three curves are well organized and that there is almost no variation between them.

[0016]

As is apparent from the above description, the present invention has the following effects. . Since the temperature data value of the food with reproducibility is obtained, the classification mode of the food can be classified more accurately than in the related art. The temperature sensor has a heat-resistant structure built in a stainless steel protection tube as heat protection. The provision of the ring further improved heat resistance. The fish had to be placed at the position where it touched the temperature sensor, and the ring was attached to the grill to mark the position of the temperature sensor.

[Brief description of the drawings]

FIG. 1 is a view schematically showing a structure of a grill provided with a cooked food temperature measuring device according to one embodiment of the present invention. (A) is a schematic diagram of the inside of a grill storage, (b) is a detailed sectional view around a temperature sensor.

FIG. 2 is a schematic diagram showing an outline of a conventional cooking temperature measuring device provided with a temperature sensor in a grill portion of a grill.

FIG. 3 is a graph showing an example of a measured value of a temperature displayed by a temperature sensor at the beginning of heating and cooking when a heat shield ring is provided and not provided. The horizontal axis represents time (seconds) after the start of cooking, and the vertical axis represents temperature rise (° C.). 3 at the top of the graph
The dashed line indicates the temperature rise curve without the heat shield ring,
The lower three solid lines show the temperature rise curves with the heat shield ring.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grill 3 Door 5 Grill storage 7 Burner board 9 Cooking thing 11 Grill net 13 Temperature sensor 15 Lead wire 16 Tip 17 Protection tube 18 Notch part 19 Heat shield ring 20 Falling part 21 Connector 23 Connector 31 Juice tray

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Noriyuki Nishio Rinnai Co., Ltd. 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya-shi 56) References JP-A-7-8393 (JP, A) JP-A-62-127405 (JP, A) JP-A-59-210226 (JP, A) JP-A-3-97633 (JP, U) (58) ) Surveyed field (Int.Cl. ⁷ , DB name) G01K 1/00-19/00 A47J 37/06

Claims (2)

(57) [Claims] (1) detecting the temperature of a food placed on a grill;
It has a cooking temperature measuring device that knows the temperature at the beginning of cooking.
Automatic cooking by grasping the characteristics of the food from the rising curve
A grill ; wherein the cooked food temperature measuring device is provided with a protective tube laid on the lower surface of the grill , the tip of which protrudes above the grill by a predetermined dimension; a temperature sensor disposed in the tip of the protective tube; A lead wire inserted into the protection tube and leading a signal of the temperature sensor, and a heat shield ring surrounding the protection tube from a protruding portion at the tip of the protection tube to a falling portion below the grille. A grill characterized by the following. 2. The method according to claim 1, wherein said protective tube is grilled under said grill.
The protective tube extends in front of the storage, and the protection tube is connected to the connector at the lower part near the grill door.
When the grill is removed, the connector is connected to the fixed connector of the other party.
From the Kuta and the protective tube with the grill.
The grill according to claim 1, wherein the grill is provided.