JPH11101574A - Refrigerator with deep freezer with article temperature detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optimally thaw and heat to cook by a heating cooker even in the case of large temperature difference between food inner and surface temperatures and to provide a compact article temperature sensor easy to regulate its thermal capacity according to type of food. SOLUTION: In the refrigerator 1 with a deep freezer for freezing or storing foods 9a, 9b by cold storage, article temperature sensors 11a, 11b are provided in storage chambers 2a, 2b to detect temperatures of the stored foods 9a, 9b to deliver inner temperatures of the foods 9a, 9b to a heating cooker, and the foods 9a, 9b are optimally thawed and heated to be cooked by the cooker according to the inner temperatures of the foods 9a, 9b and surface temperatures of the foods 9a, 9b detected at the cooker side. And, the sensors 11a, 11b each has a temperature disposed in a container and antifreezing fluid not frozen eve at a freezing temperature and filled around the sensor with thermal capacity having correlation with the foods 9a, 9b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for freezing or refrigerated food, storing the food, and then using the thawing / heating apparatus to defrost and heat the food for use.

[0002]

2. Description of the Related Art A technique for detecting the temperature of a food when the food is thawed and cooked is disclosed in, for example, JP-A-6-10184.
No. 6 discloses this. Hereinafter, the above-described conventional product temperature detection technology will be described with reference to the drawings.

FIG. 8 is a front sectional view of a cooking device using a conventional product temperature detection technique. In FIG. 8, reference numeral 51 denotes a cooking chamber, and 52 denotes a cooking dish installed in the cooking chamber 51. Numeral 53 denotes food, which is placed on the cooking dish 52.
An operation panel 54 has a cooking start button 56. Reference numeral 57 denotes a magnetron that performs high-frequency output for performing cooking. An infrared sensor 58 detects the surface temperature of the food 53.

[0004] The operation of the heating cooker configured as described above will be described below. First, the user places the food 53 on the cooking dish 52 and presses the cooking start button 56 to start cooking. When cooking is started, the infrared sensor 58 detects the food 5
3, the high-frequency output of the magnetron 57 is adjusted according to the detected surface temperature of the food 53, and the cooking is performed. Further, the infrared sensor 58 detects the surface temperature of the food 53 even during the heating and cooking, and ends the heating and cooking when the surface temperature reaches a certain temperature.

A technique for detecting the temperature of food while storing the food is disclosed, for example, in Japanese Patent Application Laid-Open No. 7-225875. Hereinafter, the above-described conventional product temperature detection technology will be described with reference to the drawings.

FIG. 9 shows a configuration diagram of a conventional product temperature sensor installed in a storage room. In FIG. 9, a product temperature sensor 61 includes a thermistor main body 62 and an epoxy resin 6 surrounding the main body.
3. The epoxy resin 63 measures the two heat capacities of the thermistor main body 62 and the food, and sequentially winds the thermistor main body 62 while adjusting the rate of change of the detected temperature for each unit elapsed time so that the heat capacity becomes the same as the food. This is to make the temperature detected by the temperature sensor 61 equal to the temperature of the food.

[0007]

However, in the first conventional example, since the high-frequency output of heating and cooking is adjusted only from the surface temperature of the food at the start of cooking, the internal temperature and the surface temperature of the food are adjusted. If the temperature difference is large,
There was a drawback that the finish of heating cooking was poor.

[0008] For example, when thawing or heating cooking of frozen food, there is a high possibility that the thawing will be insufficient or the heating time will be excessively long so that the thawing will not be insufficient. there were.

[0009] The present invention solves the conventional problems, and enables a food cooker to perform optimal thawing and heating cooking even when the temperature difference between the internal temperature and the surface temperature of the food is large. An object of the present invention is to provide a refrigerator with a detection device.

In the second conventional example, since the specific heat of the epoxy resin surrounding the thermistor body of the product temperature sensor is small, a large amount of epoxy resin is required to match the heat capacity of food. There is a drawback that the temperature sensor itself becomes large and the inside of the storage room becomes narrow. In addition, there is a disadvantage that it is difficult to adjust the heat capacity depending on the type of food.

Another object of the present invention is to solve the conventional problems, and it is compact and easy to adjust the heat capacity according to the type of food, and the temperature of other types of food having different heat capacities is also one type of sensor. The object of the present invention is to provide an article temperature sensor that can be detected by the sensor.

[0012]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention relates to a refrigerator for freezing or refrigerated storage of food, in which a temperature sensor is provided in a storage room to detect the temperature of the stored food. In addition, the detected internal temperature of the food is passed to the cooking device, and the temperature of the food and the surface temperature of the food detected on the cooking device side allow the cooking device to perform optimal thawing and cooking. .

[0013] Thus, even when the temperature difference between the internal temperature and the surface temperature of the food is large, it is possible to always provide good finished food without over-thawing or insufficient thawing, and without overheating or insufficient heating. .

Further, the article temperature sensor has a temperature sensor disposed in a container, and the periphery of the temperature sensor is filled with an antifreeze solution that does not freeze even at a freezing temperature, and has a heat capacity correlated with food. With this configuration, since the specific heat of the antifreeze is large, a relatively small amount is required to match the heat capacity of the food, and the product temperature sensor itself becomes compact. or,
It is possible to provide a product temperature sensor that can easily adjust the heat capacity according to the type of food.

Further, by calculating from the temperature of the article temperature sensor and the degree of temperature change, the heat capacity of the article temperature sensor and the heat capacity of the food, the temperature of other types of foods having different heat capacities can be reduced by one.
It can be detected by different types of sensors.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is provided with a plurality of storage rooms capable of storing frozen or refrigerated food,
Cooling means for cooling the inside of the storage, an internal temperature sensor provided in each storage room, an internal temperature detection means for detecting the internal temperature of the storage room by the internal temperature sensor, and an internal storage of each storage room. Temperature setting means for setting the temperature, and temperature determining means for determining whether or not the temperature in the chamber detected by the temperature detecting means has exceeded the set temperature set by the temperature in the temperature setting means, In a refrigerator including cooling control means for controlling cooling of each storage room from the determination result of the internal temperature determination means, a product temperature sensor provided in each storage room, and each storage room provided by the product temperature sensor. An article temperature detecting device comprising: an article temperature detecting means for detecting the temperature of the food stored in the apparatus; and an article temperature detecting means for outputting the temperature of the food detected by the article temperature detecting means. Refrigerator with storage The temperature of the extracted food is detected, and the detected internal temperature of the food is passed to the defrosting cooking device. Based on the internal temperature of the food and the surface temperature of the food detected by the defrosting cooking device, the optimum temperature of the defrosting cooking device is determined. By performing thawing and cooking, in addition to shortening the time required for thawing and cooking, even if the temperature difference between the internal temperature and the surface temperature of the food is large, there is no over-thawing or insufficient thawing, and overheating It is possible to always provide good finished food without heat or insufficient heating.

The invention according to claim 2 is the refrigerator according to claim 1, wherein the internal temperature setting means can switch and set a storage temperature for each of a plurality of storage rooms. Thawing and heating by switching the storage temperature of some storage rooms to partial or refrigeration temperature in advance, thereby thawing part of the frozen food to the required amount or partial or refrigeration temperature in advance. The time required for cooking can be further reduced.

According to a third aspect of the present invention, the product temperature sensor of the product temperature detection device is such that a temperature sensor is disposed in a container, and the area around the temperature sensor is filled with an antifreeze solution that does not freeze even at a freezing temperature. The refrigerator having the temperature detecting device according to claim 1, wherein the refrigerator has a heat capacity correlated with food, and the specific heat of the antifreeze is large.
A relatively small amount is required to match the heat capacity of the food, and the product temperature sensor itself can be made compact. In addition, it is possible to provide a product temperature sensor that can easily adjust the heat capacity depending on the type of food.

According to a fourth aspect of the present invention, the product temperature sensor of the product temperature detecting device has a heat capacity correlated with the food, and the product temperature detecting means includes a temperature of the product temperature sensor, a degree of temperature change, The refrigerator according to claim 1, wherein the temperature of the food having a heat capacity different from that of the food temperature sensor is estimated from the heat capacity of the food temperature sensor and the heat capacity of the food. The temperature of other types of foods different from each other can be detected by one type of sensor.

According to a fifth aspect of the present invention, the product temperature output means of the product temperature detection device is connected to a defrosting cooking device by wire to output a signal of the temperature of the food, and the defrosting cooking device is a food product. Refrigeration refrigerator with a product temperature detection device, which receives the temperature of the food and performs thawing and cooking based on the temperature, and passes the detected internal temperature of the food to the thawing heating cooking device, The optimum thawing and heating cooking can be performed by the thawing heating cooking device based on the temperature of the food and the surface temperature of the food detected by the thawing heating cooking device.

According to a sixth aspect of the present invention, the product temperature output means of the product temperature detecting device wirelessly transmits the temperature of the food to the thawing / heating cooking device, and the thawing / heating cooking device receives the temperature of the food. And a refrigeration refrigerator with a product temperature detection device characterized in that thawing and cooking are performed based on this, and the detected internal temperature of the food is passed to the thawing / heating cooking device, and the internal temperature of the food and the thawing / heating cooking Optimum thawing and cooking can be performed by the thawing / heating apparatus based on the surface temperature of the food detected by the apparatus.

According to a seventh aspect of the present invention, the product temperature output means of the product temperature detecting device is connected to a removable storage means to output a signal of a food temperature to the storage means, and the storage means stores the signal. An operator removes the storage means and inserts it into the thawing / cooking apparatus, thereby passing the detected internal temperature of the food to the thawing / cooking apparatus. Temperature of the food and the surface temperature of the food detected by the cooking device
The optimal thawing and heating cooking can be performed by the thawing heating cooking device.

The invention according to claim 8 is a refrigerator-freezer with a product temperature detecting device, wherein the product temperature output means of the product temperature detecting device displays a food temperature on a display. The operator looks at this display and inputs the food temperature to the thawing cooking apparatus, and passes the detected internal temperature of the food to the thawing cooking apparatus, which detects the internal temperature of the food and the thawing cooking apparatus side. Depending on the surface temperature of the food, optimal thawing and heating cooking can be performed by the thawing heating apparatus.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a refrigerator-freezer with a product temperature detecting device according to the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a refrigerator-freezer with a product temperature detecting device according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a configuration of a product temperature sensor of the embodiment,
FIG. 3 is a flow chart for explaining the operation of the embodiment, and FIG. 4 is a diagram showing the transition of the temperature of the product temperature sensor and the food in the embodiment.

In FIG. 1, reference numeral 1 denotes a freezer-refrigerator, which has two storage rooms, A-room 2a and B-room 2b, which can store food by freezing or refrigeration. A cooling unit 3 cools the inside of the refrigerator, and supplies cooled air (hereinafter, abbreviated as cold air) into the refrigerator. Reference numeral 4a denotes a temperature sensor in the A room provided in the A room 2a, and 4b denotes a temperature sensor in the B room provided in the B room 2b. 5a is the temperature sensor 4a in the room A
Is a room A temperature detecting means for detecting the temperature in the room A in the room A, and 5b is a temperature detecting means in the room B for detecting the temperature in the room B by the temperature sensor 4b in the room B. 6
a is an A room internal temperature setting means for setting the internal temperature of the A room 2a, and 6b is a B room internal temperature setting means for setting the internal temperature of the B room 2b. 7a is an A room temperature detecting means 5
The temperature inside the refrigerator detected by the a
a room A internal judging means for judging whether or not the temperature set in the room A exceeds the set temperature of the room A, and 7b a temperature setting means inside the room B detected by the temperature detecting means 5b in the room B. This is a room B interior determining means for determining whether or not the temperature exceeds the room B set temperature set by 6b. 8a is an A-room cooling control means for controlling the cooling of the A-room 2a based on the determination result of the A-room internal temperature determining means 7a, and 8b is for cooling the B-room 2b from the determination result of the B-room internal temperature determining means 7b. B to control
This is room cooling control means. 9a is the food stored in room A, and 9b is the food stored in room B.

Reference numeral 10 denotes an article temperature detecting device, and an article temperature sensor 1
1a, 11b, product temperature detecting means 12a, 12b, and product temperature output means 13. 11a is an A room temperature sensor provided in the A room, and 11b is a B room temperature sensor provided in the B room.
Room temperature sensor. 12a is an A room temperature detecting means for detecting the temperature of the food 9a stored in the A room by the A room temperature sensor 11a, and 12b is the temperature of the food 9b stored in the B room by the B room temperature sensor 11b. Is the room temperature detecting means for detecting the temperature of the room B. Reference numeral 13 denotes a product temperature output unit for selectively outputting the temperature of the food detected by the room A product temperature detecting unit 11a and the room B product temperature detecting unit 11b, and the thawing / heating cooking device groups 14a, 14b, 14c, and 14d; Connected by wire.

The thawing / heating cooking device groups 14a, 14b,
14 c and 14 d are the product temperature output means 1 of the product temperature detection device 10.
In response to the temperature of the food output from 3, the food is thawed and cooked.

FIG. 2 is a perspective view showing the structure of the product temperature sensors 11a and 11b of the product temperature detecting device 10. The product temperature sensors 11a and 11b have the same configuration.

In FIG. 2, reference numeral 21 denotes a temperature sensor,
It comprises a thermistor body 21a and a lead wire 21b. Reference numeral 22 denotes a container, which is made of an acrylic resin or the like which is transparent and the contents of which are visible. Reference numeral 24 denotes a lid, which is tightly fitted to the container 22 and supports and supports the thermistor main body 21a while holding the same.
Is integrally formed with a resin or the like, and the lead wire 21b of the temperature sensor 21 is closely penetrated therethrough. Reference numeral 25 denotes a cap, which is screwed into an antifreeze liquid filling port 24c provided in the lid 24 and hermetically closed.

Thus, the temperature sensor detects the temperature by fitting the container 22 and the lid 24 in close contact, filling the antifreeze 23 through the antifreeze filling port 24c, filling the periphery of the thermistor body 21a with the antifreeze 23. After having the heat capacity correlated with the food, the cap 25 is used to fill the antifreeze filling port 2.
4c is sealed. The antifreeze 23
Uses a food additive certified harmless to human body such as propylene glycol. And as shown in FIG. 1, the product temperature sensors 11a and 11b are installed near the foods 9a and 9b, respectively.

The operation of the refrigerator-freezer with the product temperature detecting device constructed as described above will be described below with reference to FIGS. 1, 2, 3 and 4.

In FIG. 3, first, the A room temperature detecting means 5a detects the inside temperature of the A room by the A room temperature sensor 4a (Step 1).

The A room interior determination means 7a determines whether the A room interior temperature detected by the A room interior temperature detection means is the A room set temperature set by the A room interior temperature setting means 6a. It is determined whether or not it has exceeded (Step 2). As a result, when the inside temperature of the room A is higher than the room A set temperature, the room A cooling control means 8a supplies the cool air generated by the cooling means 3 to the room A (Step 3). If the inside temperature of the room A is lower than the set temperature of the room A, the room A cooling control means shuts off the cool air in the room A (Step 4).

Next, the room B interior temperature detecting means 5b detects the interior room temperature in the room B by the room B interior temperature sensor 4b (Step 5).

Then, the room B inside room judging means 7b determines whether the room temperature inside the room B detected by the room B inside room temperature detecting means is the room B set temperature set by the room B room inside temperature setting means 6b. It is determined whether or not it has exceeded (Step 6). As a result, when the inside temperature of the room B is higher than the set temperature of the room B, the room B cooling control means 8b supplies the cool air generated by the cooling means 3 to the room B (Step 7). If the inside temperature of the room B is lower than the set temperature of the room B, the room B cooling control means shuts off the cool air in the room B (Step 8).

Next, the food 9 stored in the room A 2a
It is assumed that a part of “a” is taken out and put in the thawing / heating cooking device 14a (Step 9). Here, it is assumed that the room A has been set at a freezing temperature of -20 ° C. by the room A temperature setting means 6a.

Then, the room temperature detecting means 12a of the room temperature detecting device 10 detects the temperature of the food 9a stored in the room A by the room temperature sensor 11a (Step 10).

The product temperature output means 13 of the product temperature detecting device 10 is connected to a thawing heating cooking device 14a connected by wire.
The food 9 in the room A detected by the room temperature detecting means 12a
The temperature of a is output (Step 11).

Then, the thawing / heating cooking device 14a receives the temperature of the food 9a in the room A output from the product temperature output means 13 and performs thawing and heating / cooking (Step 12).

Next, the food 9 stored in the room B 2b
Assume that a part of b is taken out and put into the thawing / heating cooking device 14d (Step 13).

Here, the room B was originally set at a freezing temperature of -20 ° C. However, the operator predicts that all the foods 9b stored in the room B will be cooked and used, and the operator will be asked for a certain period of time. Previously (in this case, about 8 hours before), by operating the room B internal temperature setting means 6b to switch to the partial temperature of -3 ° C, the food 9 in the room B, which has been frozen and stored, can be stored.
b was previously thawed to a partial temperature.

Then, the B room temperature detecting means 12b of the product temperature detecting device 10 detects the temperature of the food 9b stored in the B room by the B room temperature sensor 11b (Step 14).

The product temperature output means 13 of the product temperature detecting device 10 is connected to a thawing heating cooking device 14d connected by wire.
The food 9 in the room B detected by the room temperature detecting means 12b
The temperature of b is output (Step 15).

Then, the thawing / heating cooking device 14d receives the temperature of the food 9b in the room B output from the product temperature output means 13 and heats and cooks (Step 16).
Return to

By the above operation, the refrigerator-freezer with the product temperature detecting device of the present embodiment performs the cooling preservation of the food stored in the storage room and the detection of the food temperature.

Here, a method of detecting the food temperature by the article temperature detecting means 12a and 12b will be described. FIG. 4 is a diagram showing the transition of the temperature of the product temperature sensor and the food. The horizontal axis represents time, and the vertical axis represents the temperature.
Shows the transition of the temperature of food with smaller heat capacity than the product temperature sensor,
θC indicates the transition of the temperature of the food having a larger heat capacity than the product temperature sensor. ΘAT indicates the outside air temperature of the refrigerator 1.

First, in the section a, the temperature of the food and the product temperature sensor stored in the storage room of the refrigerator-freezer 1 is stable, the food is sufficiently cooled, and the temperature θA of the product temperature sensor is obtained.
And the food temperatures θB and θC match. in this way,
When there is no temperature change, the product temperature detecting means 12a and 12b detect the temperature of the product temperature sensor as the food temperature. In addition, in this figure, the case where the food was stored at the freezing temperature of -20 ° C is shown.

Next, in the section B, the door of the refrigerator-freezer 1 is frequently opened and closed to take out food from the storage room and the like, the outside air flows into the storage room, and the temperature θA of the product temperature sensor is also changed. , The food temperatures θB and θC also rise.

In the section C, the removal of food from the storage room is settled down, the door of the refrigerator 1 is closed,
As a result of the cooling, the temperature θA of the article temperature sensor and the temperatures θB and θC of the food, which have once risen in temperature, also fall.

At this time, the following Newton's cooling formula can be applied to the temperature rise and fall characteristics as a function of time.

(Θw−θ) / (θw−θ0) = exp
｛− (Β / α) t｝ where θ: internal temperature of the product temperature sensor or food θ0: initial temperature of the product temperature sensor or food θw: air temperature around the product temperature sensor or food α: product Temperature sensor or food heat capacity β: Heat transfer coefficient of product temperature sensor or food t: Elapsed time The above equation gives the object having the initial temperature θ0 the temperature θ
When the object is left in the atmosphere of w, if θw> θ0, the characteristic that the temperature of the object rises toward the temperature θw, that is, the temperature rise characteristic of the food temperature sensor and the food in the section B of FIG. If θw <θ0, the characteristic that the object cools toward the temperature θw, that is, the temperature drop characteristic of the food temperature sensor and the food in the section C in FIG. 4 is given. Therefore, it is called a cooling type.

Therefore, the product temperature sensor is used to determine the heat transfer coefficient β of the food.
If the heat capacity of the food temperature sensor is αA, the heat capacity of a food product having a smaller heat capacity than the product temperature sensor is αB, and the heat capacity of a food product having a larger heat capacity than the product temperature sensor is αC, the product temperature at a certain time point t1 is obtained. The sensor temperature θA1 is given by (θw−θA1) / (θw−θ0) = exp ｛− (β /
αA) t1｝, and the ambient temperature θw is obtained from this equation. This value θw
Is substituted into the following equation to obtain the food temperature θB at the same time.
1, θC1 can be obtained.

(Θw−θB1) / (θw−θ0) = exp {− (β / αB) t1} (θw−θC1) / (θw−θ0) = exp {− (β / αC) t1} When the temperature rises and falls as shown in section B and section C in FIG.
b is calculated from the temperature of the product temperature sensor and the degree of temperature change (ie, the elapsed time and the initial temperature), the heat capacity of the product temperature sensor, and the heat capacity of the food, and is detected as the food temperature.

In section d of FIG. 4, the temperature of the food temperature sensor and the food are stabilized again, and the temperature θA of the food temperature sensor and the food temperatures θB and θC coincide. Therefore, similarly to the section A, when there is no temperature change, the product temperature detecting means 12
a and 12b detect the temperature of the product temperature sensor as the food temperature.

In the method of detecting the food temperature according to the present embodiment, the temperature of the food and the food temperature sensor is once sufficiently cooled and stabilized, and the temperature of the food temperature sensor θA matches the food temperatures θB and θC. For example, in the case where a frozen lunch is thawed and cooked and sold, for example, a lunch at a regular time is removed once a day, excluding a sales peak during lunch time. During the period from the time of carry-in to the peak of sales, it is specified that the door of the refrigerator-freezer 1 is not opened and closed, and by stabilizing the cooling, the temperature θA of the product temperature sensor and the temperature θB of the food, It is quite possible to match θC.

As described above, the refrigerator-freezer with an article temperature detecting device according to the present embodiment is provided in each of the storage compartments in the refrigerator-freezer having a plurality of storage compartments in which the inside temperature of each storage compartment can be set separately. Product temperature sensors 11a, 11b, product temperature detecting means 12a, 12b for detecting the temperature of food stored in each storage room by the product temperature sensors 11a, 11b, and product temperature detecting means 12a, 12b. A food temperature output device 13 for outputting the temperature of the food product, which detects the temperature of the stored food product and decompresses the detected internal temperature of the food product to a thawing / heating cooking device 14.
a, 14b, 14c, and 14d, and based on the internal temperature of the food and the surface temperature of the food detected by the thawing / heating cooking device side, the thawing / heating cooking device performs optimal thawing and cooking, thereby thawing and heating the food. In addition to shortening the time required for food, even when the temperature difference between the internal temperature and the surface temperature of the food is large, there is no over-thaw or under-thaw, nor overheating or under-heating, always providing good finished food. be able to.

Further, in the refrigerator-freezer with an article temperature detecting device of the present embodiment, since the internal temperatures of a plurality of storage rooms can be set separately, by changing the storage temperature of some storage rooms to the partial temperature in advance, Some of the frozen foods
By thawing only the necessary amount to the partial temperature in advance, the time required for thawing and cooking can be further reduced.

For example, when a frozen lunch is to be thawed and cooked and sold, the set temperature is switched the night before and the thaw is previously thawed to the partial temperature in anticipation of sales at lunch the next day. From a frozen state, the time required for thawing and cooking to take 2 minutes can be reduced to half, eliminating loss of sales opportunities and increasing sales.

The article temperature sensors 11a and 11b are
2, a temperature sensor 21 is provided, and the periphery of the temperature sensor 21 is filled with an antifreeze solution 23 that does not freeze even at a freezing temperature, and has a heat capacity correlated with food, and the product temperature sensor Since the specific heat of the antifreeze solution 23 is large (specific heat of the antifreeze solution is 0.78 cal / g ° C., the specific heat of the conventional epoxy resin 63 is 0.26 cal / g ° C.). In order to match the heat capacity of the food, a relatively small amount is required, and the product temperature sensor itself can be made compact. Further, the heat capacity can be easily adjusted depending on the type of food. In addition, since the antifreeze liquid does not freeze even at the freezing temperature and convection, even if the shape of the product temperature sensor is freely changed according to the food, the temperature tends to be uniform. or,
Since the antifreeze liquid 23 is harmless to the human body certified as a food additive such as propylene glycol, even if it is covered, the antifreeze liquid 23 is unlikely to adversely affect food in the storage room.

The product temperature detecting means 12a and 12b calculate the temperature of the product temperature sensors 11a and 11b, the degree of temperature change, the heat capacity of the product temperature sensor and the heat capacity of the food, and obtain a heat capacity different from that of the product temperature sensor. Since the temperature of food is also estimated, the temperature of other types of food having different heat capacities can be detected by one type of sensor.

The product temperature output means 13 of the product temperature detecting device 10
Is a thaw heating and cooking apparatus 14a, 14b, 14
c, 14d, and outputs the temperature of the food as a signal, and the thawing / heating cooking device receives the temperature of the food and performs thawing and cooking based on the temperature. The thawing / cooking apparatus can reliably perform the thawing / cooking by the thawing / cooking apparatus based on the internal temperature of the food and the surface temperature of the food detected by the thawing / cooking apparatus.

Next, another embodiment will be described with reference to the drawings. In the drawings, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 2) FIG. 5 is a block diagram showing a configuration of a refrigerator-freezer with a product temperature detecting device according to Embodiment 2 of the present invention.

In FIG. 5, 1 to 12a and 12b are common to the first embodiment. 13a is A room temperature detecting means 11
A temperature output means for selectively outputting the food temperature detected by the a and B room temperature detection means 11b, and wirelessly transmitting the food temperature to the thawing / heating cooking apparatus group 14a, 14b, 14c, 14d. I do. Thawing and cooking equipment group 14a, 1
4b, 14c and 14d receive the temperature of the food transmitted from the product temperature output means 13a and perform thawing and cooking.

As described above, the refrigerator-freezer equipped with the product temperature detecting device of the present embodiment is capable of wirelessly defrosting and heating the cooking devices 14a, 1a.
4b, 14c, and 14d, and outputs the temperature of the food as a signal. The thawing / heating cooking device receives the temperature of the food and performs thawing and cooking based on the temperature. The temperature is reliably transferred to the thawing / heating apparatus, and the optimum thawing / heating cooking can be performed by the thawing / heating apparatus based on the internal temperature of the food and the surface temperature of the food detected by the thawing apparatus. In addition, since it is wireless, wiring connection work is not required, and installation is simplified.

Next, another embodiment will be described with reference to the drawings. In the drawings, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 3) FIG. 6 is a block diagram showing a configuration of a refrigerator-freezer with an article temperature detecting device according to Embodiment 3 of the present invention.

In FIG. 6, 1 to 12a and 12b are common to the first embodiment. 13b is A room temperature detecting means 11
a and B room temperature output means for selectively outputting the food temperature detected by the food temperature detection means 11b, connected to the removable storage means 15 to output the food temperature signal to the storage means 15 The storage means 15 stores this.

Next, the operator removes the storage means 15 and inserts it into the thawing cooking apparatus for performing thawing cooking, thereby transferring the detected internal temperature of the food to the thawing cooking apparatus. The thawing / heating cooking device receives this and performs thawing and heating / cooking.

As described above, the refrigerator-freezer equipped with the product temperature detecting device of this embodiment transfers the temperature of the food to the thawing / heating cooking devices 14a, 14b, 14c, 14d via the storage means 15, and Is to perform thawing and cooking based on the temperature of the food, so that the detected internal temperature of the food is reliably passed to the thawing and cooking device, and the internal temperature of the food and the thawing and cooking device side The optimum thawing and heating cooking can be performed by the thawing / heating cooking device according to the surface temperature of the food detected in the step (1).

Next, another embodiment will be described with reference to the drawings. In the drawings, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 4) FIG. 7 is a block diagram showing a configuration of a refrigerator-freezer with an article temperature detecting device according to Embodiment 4 of the present invention.

In FIG. 7, 1 to 12a and 12b are common to the first embodiment. 13c is A room temperature detection means 11
This is a display for selectively displaying the temperature of the food detected by the a and B room temperature detecting means 11b. When the operator looks at this display and inputs the food temperature to the thawing heating cooking device, the detection is performed. The internal temperature of the prepared food is passed to the thawing / heating cooking device. The thawing / heating cooking device receives this and performs thawing and heating / cooking.

As described above, the refrigerator-freezer equipped with the product temperature detecting device of the present embodiment displays the temperature of the food and defrosts the temperature of the food via the operator to the thawing / heating cooking devices 14a, 14b, 14b.
14c and 14d, the thawing / heating cooking device receives the temperature of the food and performs thawing and cooking based on the temperature. Therefore, the detected internal temperature of the food is passed to the thawing / heating cooking device, Optimal thawing and heating cooking can be performed by the thawing heating cooking device based on the internal temperature and the surface temperature of the food detected by the thawing heating cooking device.

In the refrigerator 1 of the present embodiment, the number of storage compartments in which food can be frozen or refrigerated and stored is two, but the storage compartments in which the temperature can be individually set are not limited to this. May be provided, and a product temperature detecting means may be provided for each room.

Further, since the temperature detecting means 12a and 12b also detect the temperature of other types of foods having different heat capacities with one type of sensor, the temperature calculating means 12a and 12b calculate the heat capacity of the food temperature sensor and the heat capacity of the food, and calculate the product temperature. Although the temperature of the food having a heat capacity different from that of the sensor is estimated, there is a method in which the specific heat is assumed to be substantially the same depending on the type of the food and the weight of the food is substituted.

In this embodiment, it is assumed that the heat transfer coefficient β is almost the same depending on the type of food. However, in order to improve the accuracy of the detection of the temperature of the product, the heat transfer coefficient β is included in addition to the heat capacity. The temperature of different types of foods may be estimated by applying Newton's cooling formula. Furthermore, the estimated value may be corrected in consideration of the type of food and the packaging state, and the accuracy of detecting the product temperature may be improved.

In the product temperature output means 13 of the present embodiment, the A room temperature detection means 11a and the B room temperature detection means 11a
The method of selectively outputting the temperature of the food detected by b is performed, for example, in order to take out the food, the A of the refrigerator 1
The selection may be made depending on whether the door of the room or the room B is opened or closed. In another example, the thawing / heating cooking devices 14a and 14 are used.
Information may be bidirectionally exchanged between b, 14c, 14d and the refrigerator 1 for selection.

In this embodiment, the thawing / heating apparatus and the refrigerator are separately provided. However, if necessary, a dedicated thawing apparatus can be incorporated in the refrigerator as an integral type. is there.

[0081]

As described above, according to the present invention, a plurality of storage rooms capable of storing frozen foods by freezing or refrigeration are provided, a cooling means for cooling the inside of the storage room, and a temperature sensor in the storage room provided in each storage room. An internal temperature detecting means for detecting the internal temperature of the storage room by the internal temperature sensor, an internal temperature setting means for setting the internal temperature of each storage room, and the internal temperature detecting means. Cooling means for determining whether or not the inside temperature exceeds the set temperature set by the inside temperature setting means, and cooling for controlling cooling for each storage room based on the determination result of the inside temperature determining means. In a refrigerator including control means, a product temperature sensor provided in each storage room,
An article temperature detecting device comprising article temperature detecting means for detecting the temperature of food stored in each storage chamber by the article temperature sensor, and article temperature output means for outputting the temperature of the food detected by the article temperature detecting means. Refrigerator-freezer equipped with a product temperature detection device, which detects the temperature of stored food and passes the detected internal temperature of the food to the thawing / heating cooking device. In the case where the temperature difference between the internal temperature and the surface temperature of food is large, in addition to shortening the time required for thawing and cooking by performing the optimal thawing and cooking with the thawing heating device based on the detected food surface temperature Also, it is possible to always provide a good finished food without over-thawing or insufficient thawing, and without overheating or insufficient heating.

Further, the inside temperature setting means can switch and set the storage temperature for each of a plurality of storage rooms, and switch the storage temperature of some of the storage rooms to the partial or refrigeration temperature in advance. Thus, the time required for thawing and cooking can be further shortened by previously thawing a part of the frozen food to a partial or refrigerated temperature by a required amount in advance.

The product temperature sensor of the product temperature detecting device has a temperature sensor disposed in a container, and the area around the temperature sensor is filled with an antifreeze that does not freeze even at a freezing temperature, and has a correlation with food. It is characterized by having a heat capacity, and since the specific heat of the antifreeze is large, a relatively small amount is required to match the heat capacity of the food, and the product temperature sensor itself can be configured compact. In addition, it is possible to provide a product temperature sensor that can easily adjust the heat capacity according to the type of food.

Further, the product temperature sensor of the product temperature detecting device has a heat capacity correlated with food, and the product temperature detecting means includes a temperature of the product temperature sensor, a degree of temperature change, and a heat capacity of the product temperature sensor. And a heat capacity of the food, and the temperature of the food having a heat capacity different from that of the product temperature sensor is also estimated.
It is possible to detect with a kind of sensor.

The product temperature output means of the product temperature detecting device is
It is connected to a thawing cooking device by wire and outputs a signal of the temperature of the food, and the thawing cooking device receives the temperature of the food and performs thawing and cooking based on the temperature. Yes, pass the detected internal temperature of the food to the thawing cooking device, and perform the optimal thawing and cooking with the thawing heating device based on the internal temperature of the food and the surface temperature of the food detected by the thawing cooking device. Can be.

Alternatively, the product temperature output means of the product temperature detecting device wirelessly transmits the temperature of the food to the thawing / heating cooking device,
The thawing heating cooking device receives the temperature of the food, performs thawing and cooking based on the temperature, passes the detected internal temperature of the food to the thawing heating cooking device, Optimal thawing and heating cooking can be performed by the thawing heating cooking device based on the internal temperature and the surface temperature of the food detected by the thawing heating cooking device.

Alternatively, the article temperature output means of the article temperature detecting device is connected to removable storage means and outputs a signal of the food temperature to the storage means, and the storage means stores the signal. When the operator removes the storage means and inserts it into the thawing-cooking apparatus, the detected internal temperature of the food is passed to the thawing-cooking apparatus, and the internal temperature of this food and the thawing-heating-cooking apparatus are detected. Depending on the surface temperature of the food, optimal thawing and heating cooking can be performed by the thawing heating apparatus.

Alternatively, the product temperature output means of the product temperature detection device is characterized by displaying the temperature of the food on a display.
By inputting the food temperature to the thawing cooking device, the detected internal temperature of the food is passed to the thawing cooking device, and the thawing cooking is performed based on the internal temperature of the food and the surface temperature of the food detected by the thawing cooking device. Optimal thawing and cooking can be performed with the device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a refrigerator-freezer with a product temperature detecting device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a product temperature sensor of the embodiment.

FIG. 3 is a flowchart for explaining the operation of the embodiment;

FIG. 4 is a diagram showing a change in the temperature of the food and the temperature of the food according to the embodiment.

FIG. 5 is a block diagram showing a configuration of a refrigerator-freezer with a product temperature detecting device according to a second embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of a refrigerator-freezer with a product temperature detecting device according to a third embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a refrigerator-freezer with a product temperature detecting device according to a fourth embodiment of the present invention.

FIG. 8 is a front sectional view of a cooking device using a conventional product temperature detection technique.

FIG. 9 is a configuration diagram of a conventional product temperature sensor installed in a storage room.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator-freezer 2a, 2b Storage room 3 Cooling means 4a, 4b Internal temperature sensor 5a, 5b Internal temperature detecting means 6a, 6b Internal temperature setting means 7a, 7b Internal temperature judging means 8a, 8b Cooling control means 9a, 9b Food 10 Product temperature detecting device 11a, 11b Product temperature sensor 12a, 12b Product temperature detecting means 13 Product temperature output means 14a, 14b, 14c, 14d Defrosting heating cooking device 15 Storage means 21 Temperature sensor 22 Container 23 Antifreeze 24 Lid 25 Cap

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI F25D 23/00 301 F25D 23/00 301C G01K 7/24 G01K 7/24 Z

Claims (8)

[Claims] 1. A refrigerator comprising: a plurality of storage chambers capable of storing food by freezing or refrigeration; a cooling means for cooling the inside of the storage; a temperature sensor in the storage provided in each storage chamber; Inside temperature detection means for detecting the inside temperature of the storage room, inside temperature setting means for setting the inside temperature of each storage room, and the inside temperature detected by the inside temperature detection means is the inside of the room. A refrigerator-freezer comprising: an in-compartment judging means for judging whether or not a temperature set by a temperature setting means has been exceeded; and a cooling control means for controlling cooling in each storage room based on a judgment result of the in-compartment temperature judging means. , A product temperature sensor provided in each storage room, product temperature detection means for detecting the temperature of the food stored in each storage room by the product temperature sensor, and the temperature of the food detected by the product temperature detection means Output goods temperature output hand Wherein the temperature of the food output from the product temperature output means of the product temperature detecting device is received, and the thawing / heating cooking device performs thawing and cooking. Freezer refrigerator with device. 2. The refrigerator according to claim 1, wherein the storage temperature setting means can switch and set a storage temperature for each of a plurality of storage rooms. 3. An article temperature sensor of the article temperature detection device, wherein a temperature sensor is disposed in a container, and the area around the temperature sensor is filled with an antifreeze liquid that does not freeze even at a freezing temperature, and has a correlation with food. 2. The refrigerator according to claim 1, wherein the refrigerator has a heat capacity. 4. An article temperature sensor of the article temperature detecting device has a heat capacity correlated with food, and the article temperature detecting means includes a temperature of the article temperature sensor, a degree of temperature change, and a heat capacity of the article temperature sensor. 2. The refrigerator according to claim 1, wherein the temperature of the food having a heat capacity different from that of the food temperature sensor is also estimated from the temperature of the food and the heat capacity of the food. 5. An article temperature output means of the article temperature detecting device is connected to a defrosting heating cooking device by wire to output a signal of food temperature, and the defrosting heating cooking device receives the temperature of the food, A freezer-refrigerator equipped with a product temperature detection device, which performs thawing and cooking based on this. 6. The product temperature output means of the product temperature detecting device wirelessly transmits the temperature of the food to the thawing / heating cooking device, and the thawing / heating cooking device receives the temperature of the food and based on the received temperature. A freezer-refrigerator with a product temperature detecting device, which performs thawing and cooking. 7. The product temperature output means of the product temperature detecting device is connected to a removable storage means and outputs a signal of a food temperature to the storage means, and the storage means stores the signal. Refrigerator-freezer with temperature detector. 8. A refrigerator having an article temperature detecting device, wherein the article temperature output means of the article temperature detecting device displays a food temperature on a display.