CN1318814C - Refrigerator - Google Patents

Abstract

A food (10) mounted on a heating plate (11) in the case (4) of the freezing/thawing compartment (1) of a refrigerator is frozen/thawed by repeating a cycle for freezing the food by introducing cool air from an air duct (5) to the upper surface of the food and then heating the food by means of a heater (9) disposed on the bottom face indirectly through a space (12) one or more times so that seasoning materials and water permeates the food (10) and then the cooked food is preserved, as it is, while being cooled. A refrigerator satisfying both preservation function and cooking function can thereby be provided.

Description

refrigerator

technical field

The invention relates to a refrigerator with food cooking function.

Background technique

As a function of a refrigerator, people have been studying the preservation function of food. In recent years, in order to maintain high-quality preservation under freezing, in this preservation function, people have developed a number of rapid freezing technologies that can quickly pass through the temperature range of the maximum freezing region when food is frozen at -1 to -5°C , so as to achieve long-term high-quality preservation with less water droplets when thawing meat and fish.

Later, people carried out the development of new functions of refrigerators such as the function of realizing rapid cooling from a relatively hot state, and the function of cooling beverages at room temperature in a relatively short period of time. These functions are one of the refrigerator prep cooking functions.

In addition, Japanese Patent Application Laid-Open No. 4-73583 is included as a prior art in which a refrigerator is used as a cooking device instead of a spare. After the ingredients are kept in a frozen state for a certain period of time, they are immersed in the seasoning solution to increase the temperature of the ingredients and promote the penetration of the seasoning solution to make pickles. Fig. 13 is used to explain the structure of the cooking device.

Refrigerator 101 is divided into refrigerator compartment 102 and freezer compartment 103 by a partition wall. A heat insulating member 105 is provided on the outer periphery of the low-temperature cooking chamber 104, and a hinged door 106 is provided at the front opening. The cooling device 109 is composed of a cooler 108 that pressurizes the refrigerant by the compressor 107 and vaporizes the refrigerant liquefied by the condenser to cool the refrigerant, and the cooling device 110 forcibly cools the refrigerant. The cold air cooled by the device 109 passes through, and the cold air is sent to the low-temperature cooking chamber 104 through the air supply path 111 . In addition, in the low-temperature cooking chamber 104, a heating device 114 composed of an upper heater 112 and a lower heater 113 is provided.

According to the food material 115 in the low-temperature cooking chamber 104, the temperature and time in the low-temperature cooking chamber 104 are set by the operation panel 116, and appropriate temperature management can be performed according to different materials by setting the temperature and time. Thus, when the user puts the food material 115 into the low-temperature cooking chamber 104, and uses the operation panel 116 to set according to the food material 115, the cold air cooled by the cooling device 109 can be sent to the inside of the low-temperature cooking chamber 104 through the air supply device 110, forming Circulation, according to the setting, the food material 115 is frozen for a certain period of time to form a state where the seasoning material can be infiltrated after plasmolysis occurs. Next, the heating device 114 of the upper and lower heaters 112 and 113 raises the temperature of the food material 115 to promote penetration of the dipped seasoning. Therefore, even in the case where no salt is added, the seasoning material can still be infiltrated by freezing, resulting in plasmolysis, and the salt content of pickled vegetables can be reduced. At the same time, an environment in which the cooking material is easy to permeate is formed, thereby shortening the pickling time .

But in above-mentioned prior art scheme, owing to be limited to the situation of making pickle on the function, so have the problem that can form dead space when not making pickle, thereby can't effectively use the problem of box inner space.

In addition, since a low-temperature cooking chamber is provided in the refrigerator, it is disadvantageous that it takes a long time to freeze food, and when it is necessary to make pickles, it takes a long waiting time.

In addition, there is a problem that, when food is frozen and thawed, moisture is separated from the food that undergoes plasmolysis after thawing, and an odor is generated due to moisture.

In addition, there is a problem that food to be frozen and thawed is limited to pickled vegetables, and other ingredients and foods cannot be used, so that the freeze-thaw cooking function cannot be used flexibly and effectively.

In addition, the heating device is provided with heaters up and down, so the disadvantage is that the power consumption during freezing and thawing cooking increases, and the energy saving of the refrigerator cannot be realized.

Contents of the invention

The invention provides a refrigerator, which includes a cooling device; a heating device for heating and thawing items cooled by the cooling device to a frozen or slightly frozen state; and a freeze-thaw cooking method for cooling and storing food materials after cooling and heating room.

Description of drawings

1 is a longitudinal sectional view of main parts of Embodiment 1 of a refrigerator according to the present invention;

2 is a longitudinal sectional view of main parts of Embodiment 2 of the refrigerator of the present invention;

Fig. 3 is the front view of Embodiment 3 of the refrigerator of the present invention;

Fig. 4 is the front view of Embodiment 4 of the refrigerator of the present invention;

5 is a longitudinal sectional view of main parts of Embodiment 5 of the refrigerator of the present invention;

6 is a longitudinal sectional view of main parts of Embodiment 6 of the refrigerator of the present invention;

7 is a longitudinal sectional view of main parts of Embodiment 7 of the refrigerator of the present invention;

Fig. 8 is a longitudinal sectional view of main parts of Embodiment 8 of the refrigerator of the present invention;

9 is a longitudinal sectional view of main parts of Embodiment 9 of the refrigerator of the present invention;

Fig. 10 is a front view of main parts of Embodiment 10 of the refrigerator of the present invention;

Fig. 11 is a control block diagram of the refrigerator in Embodiment 10;

Fig. 12 is an action sequence diagram of the freeze-thaw cooking process of the refrigerator according to Embodiment 10;

Fig. 13 is a longitudinal sectional view of a conventional refrigerator.

Detailed ways

Embodiments of the refrigerator of the present invention will be described below with reference to the drawings. In addition, detailed descriptions of the same structures as those in the prior art are omitted.

And in the refrigerator of the present invention, a refrigeration cycle composed of a refrigerant compressor, an evaporator, a heat exchanger, etc., a heat insulating member made of polyurethane foam for maintaining the temperature in the box, etc., a propeller Air blowers such as air blowers, Sirocco fans, temperature detection components such as thermistors, and control circuits that perform action control according to set temperature and time, etc., but these are commonly used in the prior art, so the details are omitted here. Graphics and action descriptions.

(Embodiment 1)

Fig. 1 is a longitudinal sectional view of main parts of a refrigerator according to Embodiment 1 of the present invention.

In FIG. 1 , a drawer-type freeze-thaw cooking chamber 1 is provided with a door 2 surrounded by a heat insulating member 3 , and a box 4 is built in the freeze-thaw cooking chamber 1 . The ventilation passage 5 is used to introduce the cold air produced by the refrigeration cycle (not shown). In the middle section of the ventilation passage 5, an air valve 6 is provided to communicate with the freezing and thawing cooking chamber 1 through the opening, and the cold air is discharged from the cold air outlet 7. Structure.

Moreover, the partition part 8 is provided in the lower surface of the freeze-thaw cooking chamber 1. As shown in FIG. A heater 9 serving as a heating means is provided inside the partition 8, preferably a heater made of aluminum foil. As for the heating means, if it can be provided outside the partition 8, a radiation heater, a magnetron, etc. can be used. The food 10 that is preserved or used for freezing and thawing cooking is placed on the heat transfer plate 11 made of high heat transfer material such as aluminum. Cooling, heating control is realized by the sensor 13 for controlling the temperature.

Next, the operation of the first embodiment will be described. The food 10 is placed on the heat transfer plate 11 and stored in the freezing and thawing cooking chamber 1 . First of all, the food storage temperature range in the preservation function is: the freezing temperature range is about -18°C, the slightly freezing temperature range is about -3°C, the freezing temperature range is about -1°C, and the cold temperature range is about 1°C. The temperature range for vegetables is about 4°C, the temperature range for wine storage is about 8°C, etc.

The food 10 is cooled by the cold air produced by the refrigeration cycle (not shown) through the ventilation passage 5 and discharged from the cold air outlet 7, and the air volume of the cold air is adjusted by the air door 6 in the middle of the ventilation passage 5, so that the temperature in the box is maintained. At the required storage temperature of the food.

In addition, the heater 9 located inside the partition 8 is used to ensure the temperature, so as to prevent the temperature from falling when the preservation function is realized, especially to prevent the freezing temperature region from freezing caused by lack of control (undershoot). The temperature is lowered. As the storage function, it is preferable to have a switching function that allows selection of not only one temperature zone but multiple temperature zones. Specifically to the freeze-thaw cooking function, the food used for freeze-thaw cooking can be frozen by the cold air generated by the refrigeration cycle (not shown) through the ventilation passage 5 and discharged from the cold air outlet 7, and the food used for freeze-thaw cooking can be frozen through the partition 8. The heater 9 inside carries out thawing. After the freezing and thawing cooking function is over, switch to the preservation function, so that the freezing temperature range is about -18°C, the slight freezing temperature range is about -3°C, the freezing temperature range is about -1°C, and the freezing temperature range is about -1°C. Store in cold storage under the conditions of about 1°C, refrigeration, about 4°C for vegetables, and about 8°C for wine storage.

Next, the freeze-thaw cooking will be specifically described. The food 10 is placed on the heat transfer plate 11 and stored in the freezing and thawing cooking chamber 1 . First, the cold air introduced from the cold air outlet 7 is used for cooling to lower the temperature of the food to a frozen state. By this freezing process, the moisture in the cell tissue of the food 10 freezes, expands in volume, and destroys the cells. Then, stop supplying the cold air from the cold air outlet 7 and start to energize the heater 9. At this time, the heat transfer plate 11 heated by the heat dissipation of the heater 9 transfers heat to the food 10 to realize thawing.

In the food 10, the water in the cell tissue flows out from the part where the cells are destroyed during freezing, and at the same time becomes soft, so that the predetermined cooking state of the food 10 is ensured. "Prescribed cooking state" refers to: when the food 10 is fresh vegetables cut by such as Chinese radish, Chinese cabbage, cabbage, carrot, onion, cucumber, etc., the vegetables are treated as if they were rubbed with salt and washed with water without salt. The state of dehydration and softening treatment.

And when the food 10 is meat, the "prescribed cooking state" refers to: when there are seasoning materials around the cut fresh meat, the meat becomes soft, and the seasoning materials penetrate into the state of the meat.

And when food 10 is dairy products such as yogurt, cream, "prescribed cooking state" refers to: the state that moisture and solid component are separated, thus, form the dessert ( dessert), so that the cream can be processed into a processing state that is easy to make butter by hand after a little stirring.

In this way, the above-mentioned cooling and overheating effects can be used repeatedly to promote the infiltration of seasoning materials, water, etc. into the food 10, and make low-salt pickled vegetables, food with fresh taste, etc. conveniently. In addition, it is easy to promote softening treatment and become an effective pretreatment before cooking, and can shorten cooking time and reduce the loss of light energy and heat energy.

In addition, the cooling action and the superheating action need to be repeated at least once, but the degree of penetration will be increased due to repeated repetitions, so it is preferable to perform the optimum process under the condition of balancing the degree of penetration, taste, and processing time according to the type and purpose of the food 10. good choice.

In addition, the final temperature of the cooling effect is in the freezing temperature range, but it does not have to be cooled to, for example, around -18°C, which can also be set in a higher freezing temperature range or slightly freezing temperature range according to the type and purpose of the food 10. (Usually -3°C, but depending on the food, the freezing temperature is different, generally in the range of -1 to -5°C), etc., select the freezing rate and ice crystal growth size to obtain the best cooking state. At this time, since it is not at an extremely low temperature, it is easy to thaw, so it is also easy to repeatedly perform freezing and thawing.

The refrigerator of Embodiment 1 described above can effectively use the cold air generated by the freezing cycle (not shown) through the ventilation passage 5 and discharge it through the cold air discharge port 7 not only when used for the storage function but also when used for the freezing and defrosting cooking function. The cooling device and the heating device that adopts the heater 9 arranged inside the partition 8 can provide a refrigerator that realizes the preservation function and the cooking function at the same time, and can further enrich the diet life.

In addition, in the existing refrigerator, when the hot food is directly put into the refrigerator for preservation, since the temperature of the stored food will rise, it needs to be processed in a manner of putting it in after cooling down. Enclosed by the thermal insulation member 3, it can suppress the influence on the temperature of other chambers. Thus, food that is still in a hot state can be used, for example, boiled rice covered with plastic wrap, or placed in a lunch box. The rice in the oven, the potatoes in the roughly heated potato salad or the onions in the hamburger, etc. are directly cooled to achieve cooling.

Thereby, the refrigerator can be provided with the function of directly cooling in a hot state, so that the freezing and defrosting cooking chamber 1 can be used effectively and flexibly, and the added value of the refrigerator can be improved.

Here, "in a hot state" means a temperature of 25°C or higher.

In addition, the heater 9 arranged inside the partition 8 is used to ensure the temperature, so as to prevent the temperature drop when the preservation function is realized, especially to prevent the temperature drop caused by lack of control in the temperature range other than the freezing temperature range, Therefore, it can be effectively used as a heating device in the defrosting function.

Thus, by adding the function of defrosting, the freeze-thaw cooking chamber 1 can be used effectively and flexibly, thereby increasing the added value of the refrigerator.

In addition, in the box 4 built in the freezing and thawing cooking chamber 1, a deodorizer 50 is provided, which can remove the water separated from the food that has undergone plasmolysis after thawing due to the freezing and thawing of the food, and then from the food. Odor from moisture. In addition, the deodorizer 50 can be placed at a position that does not interfere with the cold air passage in the box 4 and the freeze-thaw cooking chamber 1, and is particularly preferably placed near the cold air suction inlet, etc., where the cold air circulates.

And, by coating the antibacterial agent on the box 4 built in the freezing and thawing cooking chamber 1, or adopting the material added with the antibacterial agent, it is possible to suppress bacterial growth when preserving the food processed by freezing and thawing cooking, thereby realizing long-term preservation . In addition, when there is a special container for the freeze-thaw cooking function in the freeze-thaw cooking chamber, if the special container is coated with an antibacterial agent or a material with an antibacterial agent is used, the odor can also be suppressed from spreading from the special container, and can Inhibit bacterial growth and achieve long-term preservation.

(Embodiment 2)

Fig. 2 is a longitudinal sectional view of main parts of a refrigerator according to Embodiment 2 of the present invention. In FIG. 2 , the freezing and defrosting cooking chamber 1 is adjacent to the freezing chamber 14 and is provided in the upper part of the freezing chamber 14 . The cooling device 15 is arranged at the back of the freezer compartment 14 , and the fan 16 is arranged at the top of the cooling device 15 .

In the above structure, the cold air from the cooling device 15 is sent to the freezing and thawing cooking chamber 1 through the ventilation passage 5 and the cold air outlet 7 by the fan 16 . At this time, because the freeze-thaw cooking chamber 1 is arranged adjacent to the freezer chamber 14, the length of the ventilation path 5 can be shortened, the ventilation resistance can be reduced, and sufficient air volume can be effectively imported into the chamber. Thus, under the action of the cooling effect during the freeze-thaw cooking function, the food can be frozen rapidly, the cooking cycle is shortened, and the cooking efficiency is improved.

(Embodiment 3)

Fig. 3 is a front view of Embodiment 3 of the refrigerator of the present invention. In FIG. 3 , the freezing temperature zone chamber 17 is composed of a freezing chamber 18 , an ice making chamber 19 , and the freeze-thaw cooking chamber 1 , and the refrigerating temperature zone chamber 20 is composed of a refrigerator chamber 21 and a vegetable chamber 22 . The first cooler 23 is installed in the freezing temperature zone chamber 17 , and the second cooler 24 is installed in the refrigeration temperature zone chamber 20 . The first cooler 23 is set at a low evaporation temperature of -30°C to cool the room 17 in the freezing temperature zone, and the second cooler 24 is set at a relatively high evaporation temperature of -5 to -20°C to suppress drying in the room. , Improve food preservation function.

In addition, this freeze-thaw cooking chamber 1 is cooled by the first cooler 23 .

In the above structure, the freezing and thawing cooking chamber 1 is cooled by the first cooler 23 with a relatively low evaporation temperature, the food preservation function is improved by the second cooler 24, and the freezing function and freezing function can be effectively obtained by the first cooler 23 Cooling capacity for defrosting cooking functions.

(Embodiment 4)

Fig. 4 is a front view of Embodiment 4 of the refrigerator of the present invention.

In FIG. 4 , the freeze-thaw cooking chamber 1 is disposed between the refrigerator chamber 21 and the vegetable chamber 22 , and the freezer chamber 18 is disposed below the vegetable chamber 22 . The first cooler 23 is installed in the freezer compartment 18 , and the second cooler 24 is installed in the refrigerator compartment 21 .

And the freezing and thawing cooking chamber 1 is cooled by the second cooler 24 .

In the above-mentioned structure, the freezing and thawing cooking chamber 1 is cooled by the second cooler 24, and the influence of the heat generated in the heating action of the freezing and thawing cooking will not affect the first cooler 23, thus preventing the temperature rise. The deterioration of the food stored in the freezer compartment 18. In addition, it is not necessary to allow a margin in the design of the cooling capacity of the first cooler 23 in order to suppress such deterioration.

In addition, since the freeze-thaw cooking chamber 1 in Embodiment 4 of the present invention is located approximately in the middle of the main body of the refrigerator, it is possible to store and take out food conveniently without bending over, making the refrigerator easy to operate. In particular, since the cooked ingredients are often put into the container, and liquids such as seasoning liquid and water are contained in the container, the design of easy access can further improve the convenience.

(Embodiment 5)

Fig. 5 is a longitudinal sectional view of main parts of a refrigerator according to Embodiment 5 of the present invention. In FIG. 5 , the following cold air passage scheme is formed, wherein the fan 30 is arranged on the top of the freeze-thaw cooking chamber 1 and is positioned at the lower air outlet of the cold air outlet 7 to suck the cold air from the cold air outlet 7 .

In the above structure, due to the formation of the following air passage scheme, that is, the fan 30 arranged on the freezing and thawing cooking chamber 1 obtains the air door 6 generated by the refrigeration cycle (not shown) through the ventilation passage 5 through the ventilation passage 5. The cold air discharged from the cold air discharge port 7 makes the cold air directly act on the food 10. Therefore, the air in the freezing and thawing cooking chamber 1 can be circulated by means of the fan 30, so that the effect of reducing uneven temperature can be obtained.

In addition, the fan 30 rotates when food is thawed by the heater 9 serving as a heating device provided inside the partition 8 . Therefore, when cooling, the fan 30 is arranged on the top of the freezing and thawing cooking chamber 1, and when heating, it is rotated, thereby improving the heat transfer efficiency of the food, thereby improving the heat exchange efficiency to shorten the freezing and thawing time.

(Embodiment 6)

Fig. 6 is a longitudinal sectional view of a refrigerator according to Embodiment 6 of the refrigerator of the present invention. In FIG. 6 , the communication pipe 31 communicates with the ventilation passage 5 and the suction side of the fan 30 .

In the above-mentioned structure, since the cold air generated by the refrigeration cycle (not shown) passing through the ventilation passage 5 and the internal damper 6 of the ventilation passage 5 can be sucked into the fan 30 through the communication pipe 31, the fan 30 can be obtained without waste and sent to the fan 30. Indoor air-conditioning, so the cooling efficiency is improved and the freezing time is shortened.

In addition, as shown in Figure 6, by rotating the fan 30 installed on the freeze-thaw cooking chamber 1, the temperature in the freeze-thaw cook chamber 1 can be made uniform, When the box 4 of the sensor 13 that controls the temperature of the thawing cooking chamber 1 is directly in contact with the position, the temperature of the food 10 can still be detected, and even if the freezing and thawing cooking chamber 1 is a pull-out chamber, the detection can still be maintained. precision.

In addition, the sensor 13 for controlling the temperature of the freezing and thawing cooking chamber 1 is a single sensor, which can control all of the preservation function, the freezing and thawing function, the function of directly cooling food and food in a hot state, and the thawing function. The function performs temperature control, thereby simplifying the control components attached to the sensor 13 .

(Embodiment 7)

Fig. 7 is a longitudinal sectional view of a main part of a refrigerator according to Embodiment 7 of the present invention.

In FIG. 7 , a drawer-type freeze-thaw cooking chamber 1 has a door 2 surrounded by a heat insulating member 3 , and a box 4 is provided inside the freeze-thaw cook chamber 1 . Ventilation path 5 forms following air path, and it is sent into by the cool air that refrigeration cycle (not shown) produces, and damper 6 is set in the middle of ventilation path 5, communicates with freezing and thawing cooking chamber 1 through opening, makes cold air discharge from the cold air. 7 discharge.

Moreover, the partition part 8 is provided in the lower surface of the freeze-thaw cooking chamber 1, and the heater 9 is provided in the inside of the partition part 8, Preferably a heating device consists of an aluminum foil heater. Food 10 for preservation or food 10 for freezing and thawing cooking is placed on a heat transfer plate 11 made of high heat transfer material such as aluminum. Furthermore, spaces 12 spaced at predetermined intervals are formed between the heater 9 and the heat transfer plate 11 . Sensors 13 for temperature control are used to control cooling and heating.

The working mode of Embodiment 7 will be described below. The food 10 is placed on the heat transfer plate 11 and stored in the freezing and thawing cooking chamber 1 . The cold air generated by the freezing cycle (not shown) through the ventilation passage 5 and discharged from the cold air outlet 7 will freeze the food used for freezing and thawing cooking, and place the food 10 in a heat transfer tray made of a high heat transfer material such as aluminum. On the plate 11, thus, the cooling efficiency can be improved and the freezing time can be shortened. The effect obtained is that after the food 10 is frozen, it is thawed by the heater 9 arranged inside the partition 8, and the heat conduction of the heater 9 is increased through the heat transfer plate 11 made of a high heat transfer material such as aluminum to improve the heating efficiency. , so that the thawing time can be shortened, and the unevenness in the thawing process of the food 10 can be reduced.

The present invention can effectively perform freeze-thaw cooking in which the freezing step and the thawing step are repeated at least once.

At this time, since the heater 9 and the heat transfer plate 11 are provided with a space 12 separated by a predetermined interval, the heat of the heater 9 is not directly transferred to the heat transfer plate 11, but indirectly heated, so that there is no temperature difference. Poor distribution, locally overheated conditions. Thereby, the defrosted state of the food 10 is less likely to vary, and the cooking quality can be maintained.

As described above, the refrigerator of Embodiment 7 is composed of: a cooling device for cooling the cold air generated by the refrigeration cycle (not shown) through the ventilation passage 5 and discharged from the cold air discharge port 7; 9 Heating device for heating; it is used to place food and is composed of a heat transfer plate 11 made of high heat transfer material such as aluminum, and the freezing process and thawing process are repeated at least once during cooling or heating during freezing and thawing cooking. , the heat transfer plate can be effectively used. Therefore, the freeze-thaw cooking can be performed efficiently, the freeze-thaw time can be shortened, and the power consumption can be reduced.

Next, the freeze-thaw cooking will be described in detail. The food 10 is placed on the heat transfer plate 11 and stored in the freezing and thawing cooking chamber 1 . First, the food is cooled by the cold air sent in from the cold air outlet 7, and the temperature of the food is reduced to a frozen state. By this freezing process, the moisture in the cell tissue of the foodstuff 10 freezes, expands in volume, and destroys cells. Then, stop supplying cold air by the cooling discharge port 7, and start to energize the heater 9. At this time, the heat transfer plate 11 heated by the heat radiation of the heater 9 transfers heat to the food 10, and realizes thawing.

In this food 10, the moisture in the cell tissue flows out from the portion where the cells are destroyed during freezing, and at the same time becomes soft, so that the predetermined cooking state of the food 10 is ensured.

Repeated use of the above-mentioned cooling and heating effects can promote the infiltration of seasoning materials and water into the food 10, and make low-salt pickled vegetables, food with fresh taste, etc. conveniently. In addition, it is also easy to promote softening treatment and become a useful pretreatment before cooking, which can shorten cooking time and reduce the loss of light energy and heat energy.

(Embodiment 8)

Fig. 8 is a longitudinal sectional view of a main part of a refrigerator according to Embodiment 8 of the present invention.

In FIG. 8 , the radiation heater 54 is provided in the upper part of the freeze-thaw cooking chamber 1 .

In this structure, the radiant heat from the radiant heater 54 can effectively irradiate the food 10 in the box 4, so that the inside of the box 4 accumulates heat to directly radiate heat the food 10, and at the same time promote air convection heating. Thereby, the ability to heat the food 10 cooked by freezing and thawing can be increased, and the thawing time can be shortened. The radiation heater 54 in the heating device adopts a high-frequency heating magnetron, thereby, the thawing time can be further shortened.

(Embodiment 9)

Fig. 9 is a longitudinal sectional view of main parts of a refrigerator according to Embodiment 9 of the present invention.

In FIG. 9 , the fan 30 is provided above the freeze-thaw cooking chamber 1 . In this structure, the cold air discharged from the cold air discharge port 7 through the ventilation passage 5 is sent to the fan 30, and the cold air is blown to the food 10 by the fan 30 or the air in the freezing and thawing cooking chamber 1 is circulated, thereby improving the cooling efficiency. , to shorten the freezing time.

In addition, when adopting the heater 9 that is located in the lower partition to heat, the air in the freezing and thawing cooking chamber 1 is circulated by the fan 30, and the air heated by the heater 9 is blown to the food, thereby improving the heating efficiency and shortening the heating time. Thawing time, effectively defrosting food.

Here, since the air from the fan 30 is also placed in the space 12 between the heat transfer plate 11 of the food 10 and the heater 9, it can also promote the cooling and heating of the food 10 from below, further improving freeze-thaw efficiency.

In addition, the fan 30 is activated only during the freeze-thaw cooking function, and is not activated during the storage function other than the freeze-thaw cooking occasion, thereby preventing unnecessary circulation of the indoor air during the storage function and preventing Food is dry and prevents waste of electricity.

In addition, when the function is saved, the fan 30 is not operated in principle, but when a predetermined condition is met, for example, the fan 30 can be operated for a short period of time after a long stop state, Make it run for a short time, thereby, just can prevent the fan 30 from condensing and frosting around the fan 30, so that the fan 30 freezes and locks, thereby ensuring the normal operation of the fan 30 and improving reliability.

(Embodiment 10)

Fig. 10 is a front view of a main part of a refrigerator according to Embodiment 10 of the present invention. Fig. 11 is a block diagram showing control steps of freeze-thaw cooking in the refrigerator according to the tenth embodiment. Fig. 12 is a schematic diagram of the timing sequence of the operation of the refrigerator in the tenth embodiment.

10 to 12 are schematic diagrams of operating the operation panel 56 to realize the function of freezing, thawing and cooking. The operation buttons 57 are arranged on the operation panel 56 . In addition, the operation button 57 may also be a touch switch composed of a liquid crystal panel or the like.

By pressing the operation button 57 that is located on the liquid crystal panel 56, the cooling process 58 in which the food is frozen by the cold air generated in the refrigeration cycle (not shown) is repeated at least once, and the heating device (not shown) ) The heating step 59 of putting the food in a thawed state, and the preservation step 60 of preserving the frozen-thawed cooked food.

In addition, the timer 61 is a timer for setting the time of the cooling step 58 and the heating step 59 , and the sensor 62 for controlling the temperature of other chambers controls the temperature of other chambers than the freeze-thaw cooking chamber 1 .

Next, the operation of the tenth embodiment will be described. The temperature here indicates an approximate temperature within ±2°C of the temperature and its vicinity.

As shown in FIG. 12 , first, in the cooling process 58 in which the food is placed in the freezing process by the cold air generated in the refrigeration cycle (not shown) in the process 1, the temperature of the food passes through the maximum temperature range of about -1°C to -5°C. The ice formation region 63 reaches the freezing temperature 64 . And there is a necessary freezing process to keep the temperature at the freezing temperature 64 determined according to the food material or food. Through this keeping treatment, the freezing and thawing cooking effect of improving the plasmolysis rate is obtained.

Then, in the heating step 59 of the second step, the food is thawed in the heating device up to the final thawing temperature range 65 . As described above, the cooling step 58 and the heating step 59 are repeated at least once, and in the preservation step 60 , the frozen-thawed cooked food is preserved in the preservation temperature range 66 . In this series of freezing and thawing cooking processes, the freezing temperature of the cooling process 58 is below -5°C. Thus, most of the food materials have a high freezing rate due to passing through the maximum ice crystal formation region, so that they can be frozen. It is used for freezing and thawing cooking, not only when the ingredients are pickled vegetables, but also can be extended to various ingredients or foods.

In addition, the time for foodstuffs or foods to pass through the maximum ice crystal formation region 63 of about -1°C to -5°C in the cooling process 58 is about 30 minutes or more, thereby increasing the mass produced in the process of passing through the maximum ice formation region 63. Wall separation for improved freeze-thaw cooking results.

In addition, the freezing temperature of the cooling step 58 is about -5°C, and the thawing end temperature range 65 of the heating step 59 is about 0°C. In the range of 0 to -5°C, the cooling step 58 and the heating step are repeated at least once. 59. Thus, it is possible to promote the growth of ice crystals in foods and foods that are difficult to cause wall separation in the range of the largest ice crystal region that is easy to freeze, so that freeze-thaw cooking can be performed, and so-called micro-freezing can be performed according to the type of foods. Freeze and thaw for cooking.

Also, since the preservation temperature region 66 of the preservation step 60 is about 0° C., the food after freezing and thawing cooking does not freeze, so it is convenient to use when further cooking is performed. In addition, the food after freezing and thawing cooking can be stored for a long time.

Furthermore, in Embodiment 10, the time control of the cooling process 58 and the heating process 59 is carried out by the timer 61, thereby, compared with the occasion where the completion of each process is determined by temperature detection, the control is simple and does not cause various problems due to differences. The process time is too long or too short to provide consistent, standard good results.

In addition, it is more preferable to combine the process control based on the temperature detection with the time control by the timer 61 to realize the protection control. In this way, more stable cooking quality of freezing and thawing can be maintained.

In addition, if the operation button 57 for cooking can input the type, amount, etc. of the food, then the freezing temperature 64 or the number of repetitions of the cooling process 58 and the heating process 59 can be determined for each food material and food, so that the food material can be precisely controlled. , food, so that it can produce appropriate freezing and thawing effects for each food material and food.

In addition, food materials and foods that can be frozen and thawed are limited, and food that is not suitable for freezing and thawing cooking is reported to the user by using the display function provided on the operation panel 56, thereby preventing food damage caused by wrong usage methods. waste.

In addition, when the freeze-thaw cooking function is carried out or when the food is preserved after freeze-thaw cooking, the temperature rise of other chamber temperature control sensors 62 that control the temperature of other chambers is detected. When the temperature of other chambers rises above a certain temperature, other chambers Chamber temperature control sensor 62 will interrupt or do not carry out cooling process 58, realize the control of freezing and thawing cooking function, because of having this control, can prevent the thermal influence of food during freezing and thawing cooking, suppress the temperature rise of the food stored in other chambers, So as to maintain the storage quality.

Industrial Utilization Possibility

The present invention relates to a refrigerator with a food cooking function.

According to the present invention, since there is a freezing and thawing cooking chamber for cooling and storing food materials after being cooled and heated, the cooling function of the refrigerator can be effectively and flexibly used in both the preservation function and the cooking function, and the added value of the refrigerator can be improved. , prevents overheating of food during thawing, and can thaw food efficiently, making it possible to further improve eating life.

Claims (26)

1. a refrigerator is characterized in that, described refrigerator has:

Cooling device;

To be cooled to by described cooling device to freeze or the microfreeze state after food heat the heater that thaws;

Food after cooling, heating is carried out the freeze-thaw cooking room of cooling preservation; With

Be arranged on the following separating part of described freeze-thaw cooking room,

Described heater is located at the inside of the following described separating part in the described freeze-thaw cooking room, simultaneously, have and be used for the food that carries out the freeze-thaw cooking in the described freeze-thaw cooking room box of mounting in addition is provided with predetermined space between described box bottom surface and described heater

And carry out at least repeatedly more than 1 time by described cooling device cause food cells destruction freeze operation and

Make the food deliquescing of freezing operation with cytoclasis by described by described heater, but with the operation of thawing of the cooking status guaranteeing to be scheduled to.

2. refrigerator as claimed in claim 1 is characterized in that described refrigerator has refrigerating chamber and refrigerating chamber, described freeze-thaw cooking room and described refrigerating chamber adjacency.

3. as claim 1 or 2 each described refrigerators, it is characterized in that, described cooling device comprises the 1st cooler that refrigerating chamber is cooled off and the 2nd cooler that described refrigerating chamber is cooled off, and described the 1st cooler cools off the freeze-thaw cooking room.

4. refrigerator as claimed in claim 1 or 2 is characterized in that, is provided with refrigerating chamber on the top of described freeze-thaw cooking room, is provided with refrigerating chamber in described freeze-thaw cooking room bottom.

5. refrigerator as claimed in claim 1 or 2 is characterized in that, described cooling device comprises the 1st cooler that refrigerating chamber is cooled off and the 2nd cooler that refrigerating chamber is cooled off;

Described the 2nd cooler cools off described freeze-thaw cooking room.

6. refrigerator as claimed in claim 1 or 2 is characterized in that, described refrigerator also comprises:

Be located in the described freeze-thaw cooking room above, make fan from the circulating cold air of described cooling device.

7. refrigerator as claimed in claim 1 or 2 is characterized in that, fan is located at the place ahead of the cold gas exhausting outlet that is positioned at described freeze-thaw cooking room rear.

8. refrigerator as claimed in claim 7 is characterized in that described refrigerator also is provided with communicating pipe, so that be communicated with between described fan and the cold gas exhausting outlet.

9. refrigerator as claimed in claim 1 or 2 is characterized in that, described freeze-thaw cooking room also has the function that the food to hot state cools off.

10. refrigerator as claimed in claim 1 or 2 is characterized in that, described freeze-thaw cooking room also has the function of thawing.

11. refrigerator as claimed in claim 1 is characterized in that, described refrigerator also has the deodoriser of being located in the described freeze-thaw cooking room.

12. refrigerator as claimed in claim 1 or 2 is characterized in that, is located at the box process antibacterial treatment in the freeze-thaw cooking room.

13. refrigerator as claimed in claim 1 is characterized in that,

Be located on the described bottom surface, at least with the heat transfer plate of contacted of described food for constituting by the high heat transfer material.

14. refrigerator as claimed in claim 13 is characterized in that, on the top of described freeze-thaw cooking room, also is provided with the heater that is used to implement radiation heating or high-frequency heating.

15., it is characterized in that as claim 13 or 14 each described refrigerators, also be provided with fan above in described freeze-thaw cooking room,

Only when implementing the freeze-thaw cooking function, make described fan work.

16. refrigerator as claimed in claim 15 is characterized in that, during the hold function of described fan when implementing except that the freeze-thaw cooking function, rotates the stipulated time according to predetermined condition.

17., it is characterized in that the described solidification point of operation of freezing is below-5 ℃ as claim 13 or 14 each described refrigerators.

18. as claim 1 or 14 described refrigerators, it is characterized in that, near 0 ℃～near-5 ℃ scope in, carry out described operation and the described operation of thawing freezed repeatedly.

19. as claim 13 or 14 each described refrigerators, it is characterized in that, describedly freeze operation and the described operation of thawing is set to the stipulated time.

20., it is characterized in that, freeze operation at every kind of food selection of carrying out the described freeze-thaw cooking, to determine solidification point as claim 13 or 14 described refrigerators.

21., it is characterized in that described refrigerator also is provided with the device that the food that is unsuitable for the described freeze-thaw cooking is reported as claim 13 or 14 described refrigerators.

22. as claim 13 or 14 described refrigerators, it is characterized in that described refrigerator also has protective device, be used for the temperature rising that prevents refrigerating chamber and refrigerating chamber when food is preserved in described freeze-thaw cooking back finishing.

23. refrigerator as claimed in claim 1 is characterized in that, described freeze-thaw cooking room makes described food hardening by food is freezed.

24. be used for the refrigerator as claimed in claim 23 of stored refrigerated described food.

25., it is characterized in that as claim 23 and 24 each described refrigerators, freeze in the operation described, freezing speed for the time by-1～-5 ℃ more than 30 minutes.

26., it is characterized in that carry out at least repeatedly that described more than 1 time freezed operation and the operation of thawing, after the described operation of thawing was finished, near the storage temperature zone 0 ℃ implemented to preserve as claim 23 or 24 described refrigerators.

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