WO2020140721A1

WO2020140721A1 - Thawing method for refrigeration and freezing device, and refrigeration and freezing device

Info

Publication number: WO2020140721A1
Application number: PCT/CN2019/124871
Authority: WO
Inventors: 牟森; 李鹏; 王海娟; 王铭
Original assignee: 海尔智家股份有限公司
Priority date: 2019-01-04
Filing date: 2019-12-12
Publication date: 2020-07-09
Also published as: CN111412718B; CN111412718A

Abstract

Disclosed are a thawing method for a refrigeration and freezing device (100), and the refrigeration and freezing device (100). The refrigeration and freezing device (100) comprises a cabinet (110), which at least defines a freezing compartment (112), a freezing door (122) for opening and closing the freezing compartment (112), and a thawing unit (140). The thawing method comprises: obtaining a trigger instruction of starting thawing; determining a working power of the thawing unit (140) according to the compartment temperature of the freezing compartment (112); and controlling the thawing unit (140) to be started and operate at the working power so that the thawing effect can be optimized according to an initial temperature.

Description

Defrosting method for refrigerated freezing device and refrigerated freezing device

Technical field

The invention relates to food cooking, and in particular to a thawing method and a refrigeration freezing device for a refrigeration freezing device.

Background technique

During the freezing process of food, the quality of the food is maintained. However, the frozen food needs to be thawed before processing or eating. In order to facilitate users to freeze and defrost food, the prior art mounts the electromagnetic defrosting unit on the refrigerator.

However, due to the low accuracy of the temperature sensing device under the fluctuating magnetic field, the current defrosting unit is not provided with a separate temperature sensing device to sense the temperature of the food. Considering comprehensively, the design needs a defrosting method and a refrigerated freezing device that can judge the initial temperature of the food and thereby optimize the defrosting effect.

Summary of the invention

An object of the first aspect of the present invention is to provide an accurate defrosting method for a refrigerator-freezer.

A further object of the first aspect of the invention is to improve the defrosting efficiency of the defrosting unit.

An object of the second aspect of the present invention is to provide a freezing and refrigerating device.

According to a first aspect of the present invention, there is provided a thawing method for a refrigerated freezing device, the refrigerated freezing device includes a cabinet at least defining a freezing compartment, and a freezing door for opening and closing the freezing compartment And a defrosting unit; wherein the defrosting method includes:

Get the trigger instruction to start thawing;

Determine the working power of the defrosting unit according to the temperature of the freezing compartment;

The thawing unit is controlled to start and operate at the working power.

Optionally, the step of determining the working power of the defrosting unit includes:

Obtain the interval time from the previous opening of the freezing door;

Determine whether the interval time is less than or equal to a preset time threshold;

If yes, determine the working power according to the matching power rule;

If not, the working power is determined according to the default power rule.

Optionally, the preset time threshold is any value between 30s and 2min.

Optionally, after determining whether the interval time is less than or equal to a preset time threshold, the method further includes:

Obtain the temperature of the compartment;

Determine whether the temperature of the compartment is less than or equal to a preset temperature threshold;

If yes, determine the working power according to the matching power rule;

If not, the working power is determined according to the default power rule.

Optionally, the preset temperature threshold is any value between -8 and -5°C.

Optionally, the matching power rule includes matching the working power in a preset temperature-power table according to the temperature of the compartment.

Optionally, the power value in the temperature-power table is inversely proportional to the temperature value.

Optionally, the power value in the temperature-power table is 60% to 100% of the rated power.

Optionally, the default power rule includes using the rated power of the defrosting unit as the working power.

According to a second aspect of the present invention, there is provided a refrigerated freezing device, including:

The cabinet, at least a freezer compartment;

A freezing door for opening and closing the freezing compartment;

Thawing unit for thawing the object to be processed; and

The controller is configured to obtain a trigger instruction to start thawing and the temperature of the freezing compartment, and determine the working power of the thawing unit according to the temperature of the compartment, and control the thawing unit to start with the working power and run.

The thawing method of the present invention determines the initial temperature of the object to be processed by the temperature of the freezing compartment, which is more accurate than the initial temperature of the object to be processed obtained by directly setting a temperature sensing device in the shielding cavity Temperature optimized thawing effect.

Further, the defrosting method of the present invention determines the working power of the defrosting unit according to the compartment temperature of the freezing compartment, which can save energy consumption and shorten the defrosting time while improving the quality of food ingredients.

According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will understand more about the above and other objects, advantages, and features of the present invention.

BRIEF DESCRIPTION

Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary but non-limiting manner with reference to the drawings. The same reference numerals in the drawings indicate the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural diagram of a refrigerating and freezing device according to an embodiment of the present invention;

Fig. 2 is a detailed flowchart of a thawing method for a refrigerated freezing device.

detailed description

FIG. 1 is a schematic structural diagram of a refrigerator-freezer 100 according to an embodiment of the present invention. Referring to FIG. 1, the refrigerating and freezing apparatus 100 may include a cabinet 110 at least defined with a freezing compartment 112, a freezing door 122 for opening and closing the freezing compartment 112, a refrigeration system for providing cooling capacity for the freezing compartment 112, A thawing unit 140 for thawing the object to be processed, and a controller 130 that controls the operation of the refrigeration system and the thawing unit 140. Among them, the freezing and refrigerating device may be a refrigerator or a freezer.

The defrosting unit 140 may include a shielding cavity for placing objects to be processed and an electromagnetic generation system. The electromagnetic generating system may be at least partially disposed in the shielding cavity or reach the shielding cavity to emit electromagnetic waves into the shielding cavity to shield the object to be processed in the cavity.

The cabinet 110 may also define a press bin 113 for placing the compressor of the refrigeration system. The controller 130 can be placed in the press bin 113.

The refrigerator-freezer 100 may further include a human-computer interaction unit 150. The human-computer interaction unit 150 may be configured to be electrically connected to the controller 130 to send the trigger instruction it receives to start the defrosting unit 140 and display the defrosting progress sent by the controller 130. Among them, the trigger instruction may include immediate trigger, trigger after a set time, and the like.

In particular, the controller 130 may be configured to acquire the compartment temperature of the freezing compartment 112 when the trigger instruction to start the defrosting unit 140 is acquired, and determine the operating power of the electromagnetic generation system according to the compartment temperature of the freezing compartment 112 to control The electromagnetic generation system is started and operated at this working power. The temperature of the freezer compartment 112 can be obtained by the temperature sensor 160 provided in the freezer compartment 112.

The thawing method of the present invention determines the initial temperature of the object to be processed by the temperature of the freezing compartment 112, which is more accurate than the initial temperature of the object to be processed obtained by directly setting the temperature sensor 160 in the shielding cavity, and thus According to this initial temperature, the thawing effect is optimized.

The controller 130 may include a storage and a processor. In some embodiments, the processor may be configured to determine the electromagnetic generation system according to the matching power rule preset in the storage when the time interval from the previous freezing door 122 opening is less than or equal to the preset time threshold in the storage Working power; when the time interval is greater than the preset time threshold, the working power of the electromagnetic generation system is determined according to the default power rule preset in the storage.

In the present invention, the opening and closing state of the freezing door body 122 can be measured by the door opening detection device 170 provided at the periphery of the access opening of the freezing compartment 112. The preset time threshold may be any value between 30s and 2min, for example, 30s, 40s, 1min, 1.5min, or 2min. In some embodiments, the preset time threshold may be 1 min.

The present invention judges whether the object to be processed is taken out from the freezing compartment 112 by comparing the time interval from the previous opening of the freezing door 122 to the preset time threshold, and then determines whether the temperature of the freezing compartment 112 is used as The initial temperature of the object to be processed accurately matches the working power of the appropriate electromagnetic generating system.

In some embodiments, the processor may be further configured to determine the electromagnetic generation system according to the matching power rule preset in the storage when the temperature of the freezing compartment 112 is less than or equal to the preset temperature threshold in the storage The working power of the electromagnetic generating system is determined according to the default power rule preset in the storage when the temperature of the freezing compartment 112 is greater than the preset temperature threshold.

In other words, in this embodiment, the time interval between the processor and the previous freezing door 122 opening is less than or equal to the preset time threshold in the reservoir and the temperature of the freezing compartment 112 is less than or equal to the preset temperature in the reservoir At the internal temperature threshold, the working power of the electromagnetic generation system is determined according to the matching power rule preset in the storage; the time interval from the previous opening of the freezing door 122 is greater than the preset time threshold in the storage and the freezing compartment 112 When the temperature of the compartment is greater than the preset temperature threshold in the storage, the working power of the electromagnetic generation system is determined according to the default power rule preset in the storage.

The preset temperature threshold may be any value between -8 and -5°C, for example, -8°C, -7°C, -6°C, or -5°C. In some embodiments, the preset temperature threshold may be -5°C.

The default power rule may include the rated power of the electromagnetic generation system as its operating power. When the temperature of the freezing compartment 112 is greater than the preset temperature threshold, the initial temperature of the object to be processed is close to its target temperature for defrosting (-5～-1℃). At this time, the maximum working power of the electromagnetic generating system is used to defrost The object to be processed not only can obtain the thawed product faster, but also can avoid the object to be processed being influenced by the temperature of the storage room where it is located, and reduce the temperature difference between the edge and the center.

The rated power of the electromagnetic generation system can be any value between 50 and 200W, such as 50W, 80W, 100W, 120W, 150W, 200W, etc. In some embodiments, the rated power of the electromagnetic generation system may be 100W.

The matching power rule may include matching the working power in a preset temperature-power table according to the temperature of the compartment. Among them, the power value in the temperature-power table can be inversely proportional to the temperature value, that is, the higher the initial temperature of the object to be processed, the lower the working power of the electromagnetic generation system, so as to reduce the nutrient loss of food ingredients and ensure the quality of the object to be processed.

The maximum power value in the temperature-power meter can be the rated power, and the minimum power value can be 60% of the rated power. For example, when the temperature of the freezing compartment 112 is less than or equal to -18°C, the corresponding working power is 100W; when the temperature of the freezing compartment 112 is greater than -18°C and less than or equal to -15°C, the corresponding power is 90W ; When the temperature of the freezing compartment 112 is greater than -15 ℃ and less than or equal to -11 ℃, the corresponding power is 80W; When the temperature of the freezing compartment 112 is greater than -11 ℃ and less than or equal to -8 ℃, corresponding The power is 70W; when the temperature of the freezer compartment 112 is greater than -8℃ and less than or equal to -5℃, the corresponding working power is 60W.

The invention matches the working power of the electromagnetic generation system according to the temperature of the freezing compartment 112, and makes the temperature value inversely proportional to the power value in a specific temperature interval, which can save energy consumption, shorten the defrosting time, and reduce the food ingredients. The loss of nutrients improves the quality of ingredients.

In some embodiments, the cabinet 110 may further define a refrigerator compartment 111. The defrosting unit 140 may be disposed in the refrigerator compartment 111 to reduce the temperature of the defrosting unit 140 to the storage compartment where it is located.

As is well known to those skilled in the art, the cold storage compartment 111 refers to a storage compartment with a storage temperature of 0 to +8°C for food ingredients; the freezing compartment 112 refers to a storage temperature for a food with a storage temperature of -20 to -15°C Storage room.

FIG. 2 is a detailed flowchart of the thawing method used for the refrigerating and freezing apparatus 100. Referring to FIG. 2, the thawing method for a refrigerated freezing device 100 of the present invention may include the following steps:

Step S202: Obtain a trigger command to start thawing. In this step, the trigger instruction to start thawing can be obtained from the human-computer interaction unit 150 provided in the refrigerator door 121 of the refrigerator.

Step S204: Obtain the interval time from the previous opening of the freezing door 122.

Step S206: determine whether the interval time from the previous opening of the freezing door 122 is less than or equal to the preset time threshold, if so, perform step S208; if not, perform step S214. In this step, the interval time can be obtained by the processor acquiring the detection signal timing of the door opening detection device 170. The preset time threshold may be any value between 30s and 2min, for example, 30s, 40s, 1min, 1.5min, or 2min. In some embodiments, the preset time threshold may be 1 min.

Step S208: Acquire the compartment temperature of the freezing compartment 112. In this step, the compartment temperature of the freezing compartment 112 may be obtained by the temperature sensor 160 provided in the freezing compartment 112.

Step S210: determine whether the temperature of the freezer compartment 112 is less than or equal to the preset temperature threshold, and if so, perform step S212; if not, perform step S214. In this step, the preset temperature threshold may be any value between -8 and -5°C, for example, -8°C, -7°C, -6°C, or -5°C. In some embodiments, the preset temperature threshold may be -5°C.

Step S212: Determine the working power of the defrosting unit 140 according to the matching power rule, that is, match the working power of the defrosting unit 140 in a preset temperature-power table according to the compartment temperature of the freezing compartment 112. Go to step S216. In step S212, the power value in the temperature-power table may be inversely proportional to the temperature value, and the power value may be a value between 60% and 100% of the rated power.

Step S214: Determine the operating power of the defrosting unit 140 according to the default power rule, that is, use the rated power of the defrosting unit 140 as the operating power of the defrosting unit 140. In this step, the rated power of the defrosting unit 140 may be any value between 50 and 200W, such as 50W, 80W, 100W, 120W, 150W, 200W, and so on. In some embodiments, the rated power of the defrosting unit 140 may be 100W. Go to step S216.

Step S216: The defrosting unit 140 starts and operates at the operating power determined in the previous step.

Step S218: The thawing is completed, and the thawing unit 140 stops working. In this step, whether the thawing is completed can be determined by whether the temperature of the object to be processed reaches the set temperature, whether the dielectric coefficient of the object to be processed is equal to the set value, and whether the working time of the thawing unit 140 reaches the set time.

By now, those skilled in the art should realize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, they can still be disclosed according to the present invention without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all these other variations or modifications.

Claims

A thawing method for a refrigerated freezing device, the refrigerated freezing device includes a cabinet at least defining a freezing compartment, a freezing door for opening and closing the freezing compartment, and a thawing unit; wherein the thawing method includes :

Get the trigger instruction to start thawing;

Determine the working power of the defrosting unit according to the temperature of the freezing compartment;

The thawing unit is controlled to start and operate at the working power.
The thawing method according to claim 1, wherein the step of determining the operating power of the thawing unit includes:

Obtain the interval time from the previous opening of the freezing door;

Determine whether the interval time is less than or equal to a preset time threshold;

If yes, determine the working power according to the matching power rule;

If not, the working power is determined according to the default power rule.
The thawing method according to claim 2, wherein

The preset time threshold is any value between 30s and 2min.
The thawing method according to claim 2, wherein after determining whether the interval time is less than or equal to a preset time threshold, the method further comprises:

Obtain the temperature of the compartment;

Determine whether the temperature of the compartment is less than or equal to a preset temperature threshold;

If yes, determine the working power according to the matching power rule;

If not, the working power is determined according to the default power rule.
The thawing method according to claim 4, wherein

The preset temperature threshold is any value between -8 and -5°C.
The thawing method according to claim 2 or 4, wherein

The matching power rule includes matching the working power in a preset temperature-power table according to the temperature of the compartment.
The thawing method according to claim 6, wherein

The power value in the temperature-power table is inversely proportional to the temperature value.
The thawing method according to claim 7, wherein

The power value in the temperature-power table is 60% to 100% of the rated power.
The thawing method according to claim 2, wherein

The default power rule includes using the rated power of the defrosting unit as the working power.
A refrigerated freezing device includes:

The cabinet, at least a freezer compartment;

A freezing door for opening and closing the freezing compartment;

Thawing unit for thawing the object to be processed; and

The controller is configured to obtain a trigger instruction for starting thawing, determine the working power of the thawing unit according to the temperature of the freezing room, and control the thawing unit to start and operate with the working power.