CN115247939A

CN115247939A - Temperature control method and control device for temperature changing chamber in refrigerator and refrigerator

Info

Publication number: CN115247939A
Application number: CN202110469372.9A
Authority: CN
Inventors: 田勇; 朱啟武; 朱卫忠
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-10-28
Also published as: EP4083546A1

Abstract

The embodiment of the invention provides a temperature control method and a control device for a variable temperature chamber of a refrigerator and the refrigerator. The refrigerator includes a variable temperature chamber and a refrigerating system adapted to generate cool air to cool the variable temperature chamber, the refrigerating system including an evaporator provided corresponding to the variable temperature chamber. The temperature control method of the temperature changing chamber in the refrigerator comprises the following steps: acquiring the set temperature of the temperature-changing chamber; judging whether the set temperature is greater than or equal to a first temperature threshold value, if so, executing a non-freezing temperature control mode on the temperature-variable chamber, and if not, executing a freezing temperature control mode on the temperature-variable chamber; the non-freezing temperature control mode is based on the temperature of the temperature-varying chamber and the temperature of the evaporator to operate the refrigerating system to cool the temperature-varying chamber, and the freezing temperature control mode is based on the temperature of the temperature-varying chamber to operate the refrigerating system to cool the temperature-varying chamber. The technical scheme of the embodiment of the invention not only realizes the flexible conversion of the temperature control mode of the temperature-variable chamber, but also is beneficial to energy conservation and defrosting in a non-freezing mode and is beneficial to improving the cooling rate in a freezing mode.

Description

Temperature control method and control device for temperature changing chamber in refrigerator and refrigerator

Technical Field

The invention relates to the technical field of household appliances, in particular to a temperature control method and a control device for a variable temperature chamber of a refrigerator and the refrigerator.

Background

With the continuous improvement of living standard of people and the diversified development of the demand of storing articles, the demand of the refrigerator for functionality is gradually increased. At present, the storage requirements for refrigerators are no longer satisfied with simple cold storage and freezing modes, and more refrigerators are beginning to have temperature-changing chambers that can be flexibly changed between non-freezing and freezing. However, how to flexibly control the temperature of the temperature-variable chamber is an urgent problem to be solved.

Disclosure of Invention

The invention aims to provide a temperature control method and a control device of a temperature changing chamber in a refrigerator and the refrigerator.

The refrigerator provided by the embodiment of the invention comprises a temperature-changing chamber and a refrigerating system which is suitable for generating cold air to cool the temperature-changing chamber, wherein the refrigerating system comprises an evaporator which is arranged corresponding to the temperature-changing chamber.

The temperature control method for the temperature changing chamber in the refrigerator provided by the embodiment of the invention comprises the following steps: acquiring the set temperature of the temperature-changing chamber; judging whether the set temperature is greater than or equal to a first temperature threshold value, if so, executing a non-freezing temperature control mode on the temperature-variable chamber, and if not, executing a freezing temperature control mode on the temperature-variable chamber; the non-freezing temperature control mode is based on the temperature of the temperature-varying chamber and the temperature of the evaporator to operate the refrigerating system to cool the temperature-varying chamber, and the freezing temperature control mode is based on the temperature of the temperature-varying chamber to operate the refrigerating system to cool the temperature-varying chamber.

Optionally, the non-freezing temperature control mode comprises: acquiring the temperature of the temperature-changing chamber and the temperature of the evaporator; and judging whether the temperature of the temperature-changing chamber is greater than a second temperature threshold value and whether the temperature of the evaporator is greater than a third temperature threshold value, and if so, operating the refrigerating system.

Optionally, the second temperature threshold is equal to the set temperature.

Optionally, the third temperature threshold is equal to the temperature of the variable temperature chamber.

Optionally, the refrigeration system comprises a fan adapted to direct chilled air into the temperature-changing chamber; the non-freezing temperature control mode includes operating the fan when the temperature of the variable temperature chamber is greater than the second temperature threshold and the temperature of the evaporator is less than the third temperature threshold.

Optionally, the refrigerator comprises a drawer located within the temperature change chamber and closable; the non-freezing temperature control mode comprises the following steps: judging whether the drawer is closed before operating the refrigeration system, and if so, operating the refrigeration system; if not, the drawer is closed and then the refrigeration system is operated.

Optionally, the non-freezing temperature control mode comprises: and judging whether the temperature of the temperature changing chamber is less than or equal to a second temperature threshold value or not after the refrigeration system is operated, and if so, stopping operating the refrigeration system.

Optionally, the freezing temperature control mode comprises: acquiring the temperature of the temperature-changing chamber; and judging whether the temperature of the temperature-changing chamber is greater than a fourth temperature threshold value or not, and if so, operating the refrigerating system.

Optionally, the fourth temperature threshold is equal to the set temperature.

Optionally, the refrigerator comprises a drawer located within the temperature change chamber and closable; the freezing temperature control mode comprises the following steps: judging whether the drawer is opened or not before operating the refrigeration system, and if so, operating the refrigeration system; if not, the drawer is opened and then the refrigeration system is operated.

Optionally, the freezing temperature control mode comprises: and judging whether the temperature of the temperature changing chamber is less than or equal to a fourth temperature threshold value after the refrigeration system is operated, and if so, stopping operating the refrigeration system.

The embodiment of the invention provides a control device of a variable temperature chamber in a refrigerator, which comprises: the acquisition module is used for acquiring the set temperature of the temperature-changing chamber; the judging module is used for judging whether the set temperature is greater than or equal to a first temperature threshold value; the processing module is used for executing a non-freezing temperature control mode on the temperature-changing chamber when the set temperature is greater than or equal to a first temperature threshold value and executing a freezing temperature control mode on the temperature-changing chamber when the set temperature is less than the first temperature threshold value; the non-freezing temperature control mode is based on the temperature of the temperature-varying chamber and the temperature of the evaporator to operate the refrigerating system to cool the temperature-varying chamber, and the freezing temperature control mode is based on the temperature of the temperature-varying chamber to operate the refrigerating system to cool the temperature-varying chamber.

Optionally, the processing module comprises: a first acquisition unit configured to acquire a temperature of the temperature-changing chamber and a temperature of the evaporator; the first judgment unit is used for judging whether the temperature of the temperature-changing chamber is greater than a second temperature threshold value and judging whether the temperature of the evaporator is greater than a third temperature threshold value; and the first processing unit is used for operating the refrigerating system when the temperature of the variable temperature chamber is greater than a second temperature threshold value and the temperature of the evaporator is greater than a third temperature threshold value, so that the non-freezing temperature control mode is executed.

Optionally, the refrigeration system comprises a fan adapted to direct chilled air into the temperature-changing chamber; the first processing unit is used for operating the fan when the temperature of the temperature changing chamber is larger than a second temperature threshold value and the temperature of the evaporator is smaller than a third temperature threshold value.

Optionally, the refrigerator comprises a drawer located within the temperature change chamber and closable; the first judgment unit is used for judging whether the drawer is closed before the refrigeration system is operated; the first processing unit is to operate the refrigeration system when the drawer is closed, and to close the drawer and then operate the refrigeration system when the drawer is not closed.

Optionally, the first judging unit is configured to judge whether the temperature of the temperature-changing chamber is less than or equal to a second temperature threshold after the refrigeration system is operated; the first processing unit is used for stopping the operation of the refrigeration system when the temperature of the temperature changing chamber is smaller than or equal to the second temperature threshold value, so that the non-freezing temperature control mode is stopped.

Optionally, the processing module comprises: a second acquisition unit for acquiring the temperature of the temperature-changing chamber; a second judgment unit configured to judge whether the temperature of the temperature-varying chamber is greater than a fourth temperature threshold; and the second processing unit is used for operating the refrigerating system when the temperature of the temperature-changing chamber is greater than a fourth temperature threshold value, so that a freezing temperature control mode is executed.

Optionally, the refrigerator comprises a drawer located within the temperature change chamber and closable; the second judging unit is used for judging whether the drawer is opened or not before the refrigerating system is operated; the second processing unit is used for operating the refrigeration system when the drawer is opened and opening the drawer and then operating the refrigeration system when the drawer is not opened.

Optionally, the second judging unit is configured to judge whether the temperature of the temperature-changing chamber is less than or equal to a fourth temperature threshold after the refrigeration system is operated; the second processing unit is used for stopping the operation of the refrigeration system when the temperature of the temperature-changing chamber is less than or equal to the fourth temperature threshold value, so that the freezing temperature control mode is stopped.

The refrigerator provided by the embodiment of the invention further comprises a control module, the control module comprises a processor and a memory, the memory stores a computer program capable of running on the processor, and the computer program is executed by the processor to realize the temperature control method of the temperature-variable chamber in the refrigerator.

Optionally, the refrigerator further comprises a closable drawer located within the temperature changing chamber and a cover adapted to open or close the drawer.

Optionally, the refrigeration system comprises a fan adapted to direct chilled air into the variable temperature chamber.

Compared with the prior art, the technical scheme of the embodiment of the invention has the beneficial effect.

For example, when the temperature-variable chamber is judged to execute the non-freezing or freezing temperature control mode based on the set temperature, the non-freezing mode is executed based on the temperature of the temperature-variable chamber and the temperature of the evaporator, and the freezing mode is executed based on the temperature of the temperature-variable chamber, so that the flexible conversion of the temperature control mode of the temperature-variable chamber is realized, the energy-saving defrosting is facilitated in the non-freezing mode, and the temperature reduction rate is facilitated in the freezing mode.

For another example, a closable drawer is further disposed in the drawer of the temperature changing chamber, and by closing the drawer in the non-freezing mode and opening the drawer in the freezing mode, the fresh-keeping effect of the articles in the non-freezing mode and the freezing between the drawer and the cover body in the freezing mode can be improved, so that the user experience is improved.

For another example, the technical scheme provided by the embodiment of the invention can be realized without excessively and complexly transforming the structure of the existing refrigerator, is simple and easy to operate, and is beneficial to saving the cost.

Further features of the invention will appear from the claims, from the drawings and from the description of the drawings. The features and feature combinations specified in the above description and in the following description of the figures and/or shown in the figures alone can be present not only in the combination specified, but also in other combinations or individually without departing from the scope of the invention. Embodiments of the invention which are not described and are not specifically shown in the drawings but can be conceived from detailed embodiments and derived from a combination of features, are thus to be considered to be included and disclosed.

Drawings

Fig. 1 is a schematic structural view of a refrigerator in an embodiment of the present invention;

FIG. 2 is a schematic flow chart of a temperature control method of a variable temperature chamber in a refrigerator according to an embodiment of the present invention;

FIG. 3 is a schematic block diagram of a temperature control device of a variable temperature chamber in a refrigerator according to an embodiment of the present invention.

Detailed Description

In the prior art, more and more refrigerators are beginning to have temperature changing chambers that can be flexibly changed between non-freezing and freezing. However, how to flexibly control the temperature of the temperature-variable chamber is a problem to be solved urgently.

The embodiment of the invention provides a temperature control method and a control device for a variable temperature chamber of a refrigerator and the refrigerator. The refrigerator includes a variable temperature chamber and a refrigerating system adapted to generate cool air to cool the variable temperature chamber, the refrigerating system including an evaporator provided corresponding to the variable temperature chamber. The temperature control method of the temperature changing chamber in the refrigerator comprises the following steps: acquiring the set temperature of the temperature-changing chamber; judging whether the set temperature is greater than or equal to a first temperature threshold value, if so, executing a non-freezing temperature control mode on the temperature-variable chamber, and if not, executing a freezing temperature control mode on the temperature-variable chamber; the non-freezing temperature control mode is based on the temperature of the temperature-varying chamber and the temperature of the evaporator to operate the refrigerating system to cool the temperature-varying chamber, and the freezing temperature control mode is based on the temperature of the temperature-varying chamber to operate the refrigerating system to cool the temperature-varying chamber.

According to the technical scheme of the embodiment of the invention, the non-freezing mode or the freezing temperature control mode of the temperature-changing chamber is judged based on the set temperature, the non-freezing mode is executed based on the temperature of the temperature-changing chamber and the temperature of the evaporator, and the freezing mode is executed based on the temperature of the temperature-changing chamber, so that the flexible conversion of the temperature control mode of the temperature-changing chamber is realized, the energy-saving defrosting is facilitated in the non-freezing mode, and the cooling rate is facilitated in the freezing mode.

In order to make the objects, features and advantages of the embodiments of the present invention more comprehensible, specific embodiments accompanied with figures are described in detail below. It is to be understood that the following specific examples are illustrative of the invention and are not to be construed as limiting the invention. In addition, for convenience of description, only a part of structures related to the present invention, not all of structures, are shown in some drawings of the embodiments of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a refrigerator 10.

Specifically, the refrigerator 10 includes a variable temperature chamber 11 adapted to store articles at a relatively low temperature, and a refrigeration system (not shown in fig. 1) adapted to generate cold air to cool the variable temperature chamber 11.

In a specific implementation, a refrigeration system includes a compressor, a condenser, an evaporator, and a dryer. The compressor, the condenser, the dryer, the evaporator and the compressor are connected in sequence to form a refrigeration circuit suitable for refrigerant circulation.

In the refrigeration circuit, a compressor is adapted to compress a low-temperature low-pressure gas refrigerant from an evaporator into a high-temperature high-pressure gas refrigerant, a condenser is adapted to condense the high-temperature high-pressure gas refrigerant from the compressor into a low-temperature high-pressure liquid refrigerant, a dryer is adapted to remove moisture and impurities from the low-temperature high-pressure liquid refrigerant from the condenser and throttle and depressurize the refrigerant into a low-temperature low-pressure liquid refrigerant, and an evaporator is adapted to evaporate the low-temperature low-pressure liquid refrigerant from the dryer into a low-temperature low-pressure gas refrigerant. In the process of evaporating the low-temperature low-pressure liquid refrigerant into the low-temperature low-pressure gas refrigerant, the low-temperature low-pressure liquid refrigerant can continuously absorb heat inside the refrigerator 10 to generate cold air, so that cooling and refrigeration inside the refrigerator 10 are realized.

In the embodiment of the present invention, the refrigeration system includes evaporators provided independently corresponding to the variable temperature chambers 11, that is, one evaporator is used only for cooling one variable temperature chamber 11.

In some embodiments, the refrigerator 10 may also include a fresh food compartment 12 and/or a freezer compartment 13 that are also adapted to store items at lower temperatures. In this case, the refrigeration system further includes an evaporator provided corresponding to the refrigerating chamber 12 and/or the freezing chamber 13.

In the embodiment of the present invention, a corresponding temperature control method is provided only for the temperature-changing chamber 11 in the refrigerator 10.

Referring to fig. 2, a temperature control method for a variable temperature chamber in a refrigerator provided by an embodiment of the present invention includes:

s21, acquiring the set temperature of the temperature-changing chamber;

s22, judging whether the set temperature is greater than or equal to a first temperature threshold value, if so, turning to the step S23, and if not, turning to the step S24;

s23, executing a non-freezing temperature control mode on the temperature change chamber;

and S24, executing a freezing temperature control mode on the temperature change chamber.

In a specific implementation of step S21, the set temperature of the variable temperature chamber is adjusted by the user based on the current storage demand for the variable temperature chamber.

In some embodiments, the set temperature of the variable temperature chamber may be adjusted based on a specific temperature value.

When the user desires to store the goods under freezing conditions, the set temperature of the variable temperature chamber may be adjusted to a temperature suitable for freezing, for example, -18 ℃.

When the user desires to store the articles under the non-freezing condition, the set temperature of the variable temperature chamber may be adjusted to a higher temperature than the freezing condition, for example, when desiring to store the articles under a general refrigerating condition, the set temperature of the variable temperature chamber may be adjusted to 5 ℃, or when desiring to store the articles under the ice temperature condition (i.e., freezing-like and non-freezing condition), the set temperature of the variable temperature chamber may be adjusted to 0 ℃.

In other embodiments, the set temperature of the temperature-changing chamber may also be adjusted based on the temperature gear.

When a user desires to store items in a frozen condition, the set temperature of the variable temperature chamber may be adjusted to a first temperature step representing a temperature suitable for freezing, e.g., [ -18 ℃, -16 ℃ ].

When a user desires to store the articles in a non-freezing condition, the set temperature of the variable temperature chamber may be adjusted to a second temperature step or a third temperature step, for example, when the articles are desired to be stored in a general refrigerating condition, the set temperature of the variable temperature chamber may be adjusted to a second temperature step, which represents a temperature suitable for general refrigeration, for example, [5 ℃,10 ℃ ]; or when it is desired to store the articles under ice-temperature conditions (i.e., freezing-like and non-freezing conditions), the set temperature of the temperature-changing chamber may be adjusted to a third temperature range, which represents a temperature suitable for ice-temperature storage, for example [ -3 ℃,3 ℃).

In a specific implementation, each temperature step may be represented as a temperature interval, rather than a temperature value. The two end values of each temperature interval respectively represent the maximum value and the minimum value of the temperature gear.

In the embodiment of the invention, the ordinary refrigeration and the ice temperature storage can be distinguished, and the ordinary refrigeration and the ice temperature storage can also be not distinguished. When the ordinary cold storage and the ice-temperature storage are not distinguished, the third temperature gear and the second temperature gear can be combined into one temperature gear.

In the present embodiment, the general cold storage and the ice-temperature storage are collectively referred to as non-freezing regardless of whether they are distinguished.

Referring to fig. 1, the refrigerator 10 further includes a door 14 adapted to open and close the temperature varying chamber 11, and an operation panel 15 provided on an outer side surface of the door 14.

In a specific implementation, the operating panel 15 is adapted to be operated by a user to adjust the set temperature. Specifically, the operation panel 15 is adapted to be operated by a user to adjust a specific numerical value of the set temperature, or to adjust a temperature step of the set temperature.

In the embodiment of the invention, which temperature control mode the temperature-variable chamber should execute is judged based on the set temperature of the temperature-variable chamber.

In particular implementations, the temperature control mode can include a non-freezing control mode and a freezing temperature control mode.

Specifically, the non-freezing temperature control mode and the freezing temperature control mode can be distinguished by a first temperature threshold. And when the set temperature of the temperature-changing chamber is greater than or equal to the first temperature threshold, the non-freezing temperature control mode is suitable to be executed, and when the set temperature of the ice-temperature chamber is less than the first temperature threshold, the freezing temperature control mode is suitable to be executed.

In an embodiment of the present invention, the first temperature threshold is mainly used to define non-freezing and freezing modes of the stored items in the refrigerator, which may be set based on relevant countries, industries, enterprise standards of the refrigerator and general knowledge of the user. For example, the first temperature threshold may be set at-3 ℃.

In a specific implementation of step S22, it is determined whether the set temperature of the temperature-changing chamber is greater than or equal to a first temperature threshold.

And when the set temperature of the temperature-changing chamber is greater than or equal to the first temperature threshold value, the step S23 is switched to, and a non-freezing temperature control mode is executed on the temperature-changing chamber.

And when the set temperature of the temperature-changing chamber is smaller than the first temperature threshold value, the step S24 is switched to, and a freezing temperature control mode is executed on the temperature-changing chamber.

In the embodiment of the present invention, the non-freezing temperature control mode may also be adopted when the set temperature of the temperature-varying chamber is greater than the first temperature threshold, and the freezing temperature control mode may also be adopted when the set temperature of the ice-cold chamber is less than or equal to the first temperature threshold.

In the embodiment of the invention, the non-freezing temperature control mode operates the refrigerating system based on the temperature of the temperature-varying chamber and the temperature of the evaporator to cool the temperature-varying chamber, and the freezing temperature control mode operates the refrigerating system based on the temperature of the temperature-varying chamber to cool the temperature-varying chamber.

Specifically, the implementation process of the non-freezing temperature control mode may include:

s31, acquiring the temperature of the temperature-changing chamber and the temperature of the evaporator;

and S32, judging whether the temperature of the temperature changing chamber is greater than a second temperature threshold value and whether the temperature of the evaporator is greater than a third temperature threshold value, and if so, operating the refrigerating system.

In a specific implementation of step S31, the temperature of the temperature-changing chamber and the temperature of the evaporator may be acquired based on temperature sensors. Wherein, the evaporator is an evaporator which is independently arranged corresponding to the temperature changing chamber.

In specific implementation, the refrigerator provided by the embodiment of the invention further comprises a temperature changing chamber temperature sensor and an evaporator temperature sensor which are respectively arranged corresponding to the temperature changing chamber and the evaporator and used for respectively collecting the temperature of the temperature changing chamber and the temperature of the evaporator.

In the specific implementation of step S32, it can be determined whether to operate the refrigeration system to cool down the temperature-changing chamber based on the temperature of the temperature-changing chamber and the temperature of the evaporator.

Specifically, it may be determined whether the temperature of the variable temperature chamber is greater than a second temperature threshold value and whether the temperature of the evaporator is greater than a third temperature threshold value, and the refrigeration system may be operated when the temperature of the variable temperature chamber is greater than the second temperature threshold value and the temperature of the evaporator is greater than the third temperature threshold value.

In the embodiment of the present invention, operating the refrigeration system means simultaneously operating the compressor, the condenser, the evaporator and the dryer in the refrigeration system and flowing the refrigerant in the refrigeration circuit.

In a specific implementation, the second temperature threshold is a temperature threshold at which the temperature-changing chamber cannot achieve the non-freezing refrigeration effect and needs to receive the refrigeration capacity for cooling.

Specifically, the second temperature threshold may be determined based on a set temperature of the variable temperature chamber.

The second temperature threshold may be equal to the set temperature when the set temperature is adjusted based on a specific value.

When the set temperature is adjusted based on the temperature range, the second temperature threshold may be equal to a starting temperature threshold of the refrigerator in the existing non-freezing mode. The existing non-freezing mode refers to a non-freezing mode of a refrigerator in the prior art. The starting up in the starting-up temperature threshold value means that the refrigerating system is started up, and the whole refrigerating circuit starts to work.

In the embodiment of the present invention, the second temperature threshold may be slightly higher than the set temperature. Therefore, the energy-saving and environment-friendly effects can be realized.

For example, the second temperature threshold may be equal to the set temperature plus 0.5 ℃ when the set temperature is adjusted based on a specific value. When the set temperature is adjusted based on the temperature gear, the second temperature threshold may be equal to the start-up temperature threshold of the refrigerator in the existing non-freezing mode plus 0.5 ℃.

Generally, when the temperature of the variable temperature chamber is greater than the second temperature threshold, it is desirable from the perspective of the variable temperature chamber alone that the refrigeration system can be operated immediately to cool it down. However, for the evaporator, there may be excess cold that can continue to be used to cool the warming chamber, and it is not necessary to operate the refrigeration system immediately, and operating the refrigeration system immediately at this time is also not conducive to defrosting the evaporator.

In the embodiment of the present invention, it is determined whether the temperature of the variable temperature chamber is greater than the second temperature threshold value, and it is also determined whether the temperature of the evaporator is greater than the third temperature threshold value.

In particular, the third temperature threshold may be equal to the temperature of the variable temperature chamber.

And judging whether the temperature of the evaporator is greater than a third temperature threshold value, namely judging whether the temperature of the evaporator is greater than the temperature of the temperature-changing chamber.

When the temperature of the evaporator is higher than that of the temperature-changing chamber, the evaporator has no redundant cold energy to be used for cooling the temperature-changing chamber, and at the moment, the refrigeration system also needs to be operated from the perspective of the evaporator.

When the temperature of the evaporator is lower than that of the temperature-changing chamber, the evaporator also has redundant cold energy which can be used for cooling the temperature-changing chamber, and at the moment, a refrigeration system does not need to be operated from the perspective of the evaporator. Therefore, the evaporator is not only beneficial to energy conservation and environmental protection, but also beneficial to defrosting of the evaporator.

In the present embodiment, from the perspective of both the variable temperature chamber and the evaporator, the refrigeration system needs to be operated before the refrigeration system is operated. That is, the refrigeration system is operated when the temperature of the variable temperature chamber is greater than the second temperature threshold and the temperature of the evaporator is greater than the third temperature threshold.

In an embodiment of the present invention, the refrigeration system may further include a fan adapted to guide cool air generated by the evaporator into the temperature-varying chamber.

Accordingly, the non-freezing temperature control mode may further include:

and when the temperature of the temperature changing chamber is greater than the second temperature threshold value and the temperature of the evaporator is less than a third temperature threshold value, operating the fan.

Therefore, when the evaporator has redundant cold energy, the redundant cold energy can be introduced into the temperature changing chamber through the fan to cool the temperature changing chamber, so that the energy conservation and the environmental protection are facilitated, and the defrosting of the evaporator is facilitated.

Referring to fig. 1, a refrigerator 10 according to an embodiment of the present invention may further include a drawer 16 located in the temperature-varying chamber 11 and being closable.

Accordingly, the non-freezing temperature control mode may further include:

judging whether the drawer is closed before operating the refrigeration system, and if so, operating the refrigeration system; if not, the drawer is closed and then the refrigeration system is operated.

In the non-freezing mode, the drawer in the temperature changing chamber can be closed based on the preservation requirement of the stored goods (especially for the fruits and vegetables), and the refrigerating system can be operated when the drawer is closed. Therefore, the fresh-keeping effect of the articles can be improved, the articles can be prevented from being frozen, the air drying and dehydration of the stored articles can be reduced, and the environment friendliness can be realized.

Specifically, the refrigerator provided by the embodiment of the invention can further comprise a cover body suitable for opening or closing the drawer in the temperature changing chamber, and a cover sensor suitable for detecting whether the cover body opens or closes the drawer.

In specific implementation, the cover can be manually operated by a user to open or close the drawer, and can also be automatically opened or closed based on the set temperature, for example, when it is determined that the non-freezing temperature control mode needs to be executed based on the set temperature, the cover can be controlled to automatically close the drawer.

In a specific implementation, the automatic closing or opening of the drawer by the cover can be realized by adopting the conventional technical means in the field.

In a specific implementation, the cover sensor may be implemented by using a door sensor that detects whether the door body is opened or closed.

In some embodiments, the non-freezing temperature control mode may further include:

and judging whether the temperature of the temperature changing chamber is less than or equal to a second temperature threshold value after the refrigeration system is operated, and if so, stopping operating the refrigeration system.

Therefore, when the variable temperature chamber achieves the non-freezing refrigeration effect, the refrigeration system can be stopped in time, and the environment is saved.

In other embodiments, the non-freezing temperature control mode may further include:

and judging whether the temperature of the evaporator is less than a shutdown temperature threshold value in a non-freezing mode after the refrigeration system is operated, and if so, stopping operating the refrigeration system.

The stop temperature threshold in the non-freezing mode refers to a stop temperature threshold of a refrigerator in the non-freezing mode in the prior art. A shutdown in the shutdown temperature threshold refers to stopping the refrigeration system and shutting down the entire refrigeration circuit.

In the embodiment of the present invention, the freezing temperature control mode includes:

s41, acquiring the temperature of the temperature-changing chamber;

and S42, judging whether the temperature of the temperature changing chamber is greater than a fourth temperature threshold value, and if so, operating the refrigerating system.

In the implementation of step S41, the temperature of the temperature-changing chamber may be acquired based on the temperature sensor as well.

In the specific implementation of step S42, it may be determined whether to operate the refrigeration system to cool down the temperature-changing chamber based on only the temperature of the temperature-changing chamber.

Generally, a temperature-varying chamber requires a large amount of cooling energy in a freezing mode, and does not need to consider a problem of defrosting of an evaporator in the freezing mode. Therefore, in the embodiment of the present invention, the freezing temperature control mode is executed only based on the temperature of the temperature-varying chamber to determine whether the refrigeration system needs to be operated to cool the temperature-varying chamber.

Specifically, it may be determined whether the temperature of the temperature-varying chamber is greater than a fourth temperature threshold value, and the refrigeration system may be operated when the temperature of the temperature-varying chamber is greater than the fourth temperature threshold value.

In a specific implementation, the fourth temperature threshold may be determined based on a set temperature of the variable temperature chamber.

The fourth temperature threshold may be equal to the set temperature when the set temperature is adjusted based on the specific value.

The fourth temperature threshold may be equal to a starting temperature threshold of the refrigerator in the existing freezing mode when the set temperature is adjusted based on the temperature range. The existing freezing mode refers to a freezing mode of a refrigerator in the prior art. The starting in the starting temperature threshold value refers to starting the refrigeration system and enabling the whole refrigeration loop to start working.

In the embodiment of the present invention, the fourth temperature threshold may be slightly higher than the set temperature. Therefore, the energy-saving and environment-friendly effects can be realized.

For example, when the set temperature is adjusted based on a specific value, the fourth temperature threshold may be equal to the set temperature plus 0.5 ℃. When the set temperature is adjusted based on the temperature gear, the fourth temperature threshold may be equal to the starting temperature threshold of the refrigerator in the existing freezing mode plus 0.5 ℃.

In the embodiment of the present invention, the freezing temperature control mode may further include:

judging whether a drawer in the temperature changing chamber is opened or not before operating the refrigerating system, and if so, operating the refrigerating system; if not, the drawer is opened and then the refrigeration system is operated.

In the freezing mode, in order to prevent the drawer and the cover body from freezing and improve the temperature reduction rate of the drawer in the temperature change chamber, the drawer in the temperature change chamber can be opened through the cover body.

In specific implementation, the cover can be manually operated by a user to open the drawer, and can also be automatically opened based on the set temperature, for example, when it is determined that the freezing temperature control mode needs to be executed based on the set temperature, the cover can be controlled to automatically open the drawer.

and judging whether the temperature of the temperature changing chamber is less than or equal to a fourth temperature threshold value after the refrigeration system is operated, and if so, stopping operating the refrigeration system.

Therefore, when the variable temperature chamber achieves the refrigeration effect of refrigeration, the refrigeration system can be stopped in time, and the environment is saved.

In other embodiments, the freezing temperature control mode may further include:

and judging whether the temperature of the evaporator is less than a shutdown temperature threshold value in the freezing mode after the refrigeration system is operated, and if so, stopping operating the refrigeration system.

The stop temperature threshold in the freezing mode refers to a stop temperature threshold of a refrigerator in a non-freezing mode in the prior art. A shutdown in the shutdown temperature threshold refers to stopping the compressor in the refrigeration system and shutting down the entire refrigeration circuit.

The refrigerator provided by the embodiment of the invention can also comprise a control module.

In a specific implementation, the control module includes a processor and a memory, and the memory stores a computer program capable of running on the processor, and when the computer program is executed by the processor, the temperature control method for the temperature varying chamber in the refrigerator provided by the embodiment of the invention is implemented.

Referring to fig. 3, the embodiment of the present invention further provides a control device 50 for a variable temperature chamber of a refrigerator.

The control device 50 includes an acquisition module 51, a judgment module 52 and a processing module 53 connected in sequence.

Specifically, the obtaining module 51 is used for obtaining the set temperature of the temperature changing chamber; the determining module 52 is used for determining whether the set temperature is greater than or equal to a first temperature threshold; the processing module 53 is configured to execute a non-freezing temperature control mode on the temperature-varying chamber when the set temperature is greater than or equal to the first temperature threshold, and execute a freezing temperature control mode on the temperature-varying chamber when the set temperature is less than the first temperature threshold; the non-freezing temperature control mode is based on the temperature of the temperature-varying chamber and the temperature of the evaporator to operate the refrigerating system to cool the temperature-varying chamber, and the freezing temperature control mode is based on the temperature of the temperature-varying chamber to operate the refrigerating system to cool the temperature-varying chamber.

In a specific implementation, the processing module 53 includes:

a first acquisition unit configured to acquire a temperature of the variable temperature chamber and a temperature of the evaporator;

the first judgment unit is used for judging whether the temperature of the temperature-changing chamber is greater than a second temperature threshold value and judging whether the temperature of the evaporator is greater than a third temperature threshold value;

and the first processing unit is used for operating the refrigerating system when the temperature of the variable temperature chamber is greater than a second temperature threshold value and the temperature of the evaporator is greater than a third temperature threshold value, so that the non-freezing temperature control mode is executed.

In a specific implementation, the first processing unit is further configured to operate the fan when the temperature of the variable temperature chamber is greater than the second temperature threshold and the temperature of the evaporator is less than a third temperature threshold.

In a specific implementation, the first judging unit is further used for judging whether the drawer is closed before the refrigeration system is operated; the first processing unit is also used to operate the refrigeration system when the drawer is closed, and to close the drawer and then operate the refrigeration system when the drawer is not closed.

In a specific implementation, the first judging unit is further used for judging whether the temperature of the temperature changing chamber is less than or equal to a second temperature threshold value after the refrigeration system is operated; the first processing unit is further used for stopping the operation of the refrigeration system when the temperature of the temperature changing chamber is smaller than or equal to the second temperature threshold value, so that the non-freezing temperature control mode is stopped.

In a specific implementation, the processing module 53 further includes:

a second acquisition unit for acquiring the temperature of the temperature-changing chamber;

the second judging unit is used for judging whether the temperature of the temperature-changing chamber is greater than a fourth temperature threshold value;

and the second processing unit is used for operating the refrigerating system when the temperature of the temperature-changing chamber is greater than a fourth temperature threshold value, so that a freezing temperature control mode is executed.

In an implementation, the second judging unit is further used for judging whether the drawer is opened before the refrigeration system is operated; the second processing unit is also used to operate the refrigeration system when the drawer is open, and to open the drawer and then operate the refrigeration system when the drawer is not open.

In specific implementation, the second judging unit is further used for judging whether the temperature of the temperature changing chamber is less than or equal to a fourth temperature threshold value after the refrigeration system is operated; the second processing unit is also used for stopping operating the refrigeration system when the temperature of the temperature-changing chamber is less than or equal to the fourth temperature threshold value, so that the freezing temperature control mode is stopped.

While specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless differently stated. In particular implementations, the features of one or more dependent claims may be combined with the features of the independent claims in any suitable manner, depending on the practical requirements, and the features from the respective independent claims may be combined, not merely by the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.

Claims

1. A temperature control method of a variable temperature chamber (11) in a refrigerator (10), said refrigerator (10) including a refrigeration system adapted to generate cool air to cool down said variable temperature chamber (11), said refrigeration system including an evaporator provided in correspondence with said variable temperature chamber (11), characterized by comprising:

acquiring the set temperature of the temperature-changing chamber (11);

judging whether the set temperature is greater than or equal to a first temperature threshold value, if so, executing a non-freezing temperature control mode on the temperature-changing chamber (11), and if not, executing a freezing temperature control mode on the temperature-changing chamber (11);

wherein, non-freezing accuse temperature mode is based on the temperature of variable temperature room (11) with the temperature operation of evaporimeter refrigerating system is right variable temperature room (11) are cooled down, freezing accuse temperature mode is based on the temperature operation of variable temperature room (11) refrigerating system is right variable temperature room (11) are cooled down.

2. The temperature control method according to claim 1, wherein the non-freezing temperature control mode comprises: acquiring the temperature of the temperature-changing chamber (11) and the temperature of the evaporator;

and judging whether the temperature of the temperature changing chamber (11) is greater than a second temperature threshold value and whether the temperature of the evaporator is greater than a third temperature threshold value, and if so, operating the refrigeration system.

3. The temperature control method according to claim 2, wherein the second temperature threshold is equal to the set temperature.

4. Temperature control method according to claim 2, characterized in that the third temperature threshold is equal to the temperature of the variable temperature chamber (11).

5. A method for controlling the temperature according to claim 2, wherein said refrigeration system comprises a fan adapted to introduce said cold air into said temperature-variable chamber (11); the non-freezing temperature control mode includes operating the fan when the temperature of the variable temperature chamber (11) is greater than the second temperature threshold and the temperature of the evaporator is less than the third temperature threshold.

6. Method for controlling the temperature according to claim 1, characterized in that said refrigerator (10) comprises a drawer (16) located inside said temperature-variable chamber (11) and closable; the non-freezing temperature control mode comprises the following steps: judging whether the drawer (16) is closed before operating the refrigeration system, and if so, operating the refrigeration system; if not, the drawer (16) is closed and the refrigeration system is then operated.

7. The temperature control method according to claim 2 or 6, wherein the non-freezing temperature control mode comprises:

and after the refrigeration system is operated, judging whether the temperature of the temperature change chamber (11) is less than or equal to the second temperature threshold value, if so, stopping operating the refrigeration system.

8. The temperature control method according to claim 1, wherein the freezing temperature control mode comprises: acquiring the temperature of the temperature-changing chamber (11);

and judging whether the temperature of the temperature changing chamber (11) is greater than a fourth temperature threshold value, and if so, operating the refrigerating system.

9. The temperature control method according to claim 8, wherein the fourth temperature threshold is equal to the set temperature.

10. Method for controlling the temperature according to claim 1, characterized in that said refrigerator (10) comprises a drawer (16) located inside said temperature-variable chamber (11) and closable; the freezing temperature control mode comprises the following steps:

judging whether the drawer (16) is opened before operating the refrigeration system, and if so, operating the refrigeration system; if not, the drawer (16) is opened and the refrigeration system is operated.

11. The temperature control method according to claim 8 or 10, wherein the freezing temperature control mode comprises:

and after the refrigeration system is operated, judging whether the temperature of the temperature change chamber (11) is less than or equal to the fourth temperature threshold value, if so, stopping operating the refrigeration system.

12. A control device (50) of a variable temperature compartment (11) in a refrigerator (10), the refrigerator (10) comprising a refrigeration system adapted to generate cool air to cool the variable temperature compartment (11), the refrigeration system comprising an evaporator provided in correspondence with the variable temperature compartment (11), characterized by comprising:

an acquisition module (51) for acquiring a set temperature of the temperature-changing chamber (11);

a judging module (52) for judging whether the set temperature is greater than or equal to a first temperature threshold value; a processing module (53) for executing a non-freezing temperature control mode on the temperature-changing chamber (11) when the set temperature is greater than or equal to a first temperature threshold value, and executing a freezing temperature control mode on the temperature-changing chamber (11) when the set temperature is less than the first temperature threshold value;

13. The control device (50) according to claim 12, characterized in that said processing module (53) comprises:

a first acquisition unit to acquire the temperature of the variable temperature chamber (11) and the temperature of the evaporator; a first judgment unit for judging whether the temperature of the temperature change chamber (11) is greater than a second temperature threshold value and whether the temperature of the evaporator is greater than a third temperature threshold value;

a first processing unit for operating the refrigeration system when the temperature of the temperature-changing chamber (11) is greater than a second temperature threshold and the temperature of the evaporator is greater than a third temperature threshold, thereby executing the non-freezing temperature control mode.

14. The control device (50) according to claim 13, wherein said refrigeration system comprises a fan adapted to direct said cold air into said variable-temperature chamber (11); the first processing unit is configured to operate the fan when the temperature of the temperature-changing chamber (11) is greater than the second temperature threshold and the temperature of the evaporator is less than the third temperature threshold.

15. The control device (50) according to claim 13, characterized in that said refrigerator (10) comprises a drawer (16) located inside said temperature variation chamber (11) and closable; the first judging unit is used for judging whether the drawer (16) is closed or not before the refrigeration system is operated; the first processing unit is used for operating the refrigeration system when the drawer (16) is closed, and closing the drawer (16) when the drawer (16) is not closed and then operating the refrigeration system.

16. The control device (50) according to claim 12 or 15, wherein the first judgment unit is configured to judge whether the temperature of the temperature-changing chamber (11) is less than or equal to the second temperature threshold value after the refrigeration system is operated; the first processing unit is used for stopping operating the refrigeration system when the temperature of the temperature change chamber (11) is less than or equal to the second temperature threshold value, so that the non-freezing temperature control mode is stopped.

17. The control device (50) according to claim 12, characterized in that said processing module (53) comprises:

a second acquisition unit for acquiring the temperature of the temperature-changing chamber (11);

a second judgment unit for judging whether the temperature of the temperature-changing chamber (11) is greater than a fourth temperature threshold value; and the second processing unit is used for operating the refrigerating system when the temperature of the temperature-changing chamber (11) is greater than a fourth temperature threshold value, so that the freezing temperature control mode is executed.

18. The control device (50) according to claim 17, characterized in that said refrigerator (10) comprises a drawer (16) located inside said temperature variation chamber (11) and closable; the second judging unit is used for judging whether the drawer (16) is opened or not before the refrigeration system is operated; the second processing unit is used for operating the refrigeration system when the drawer (16) is opened, and opening the drawer (16) when the drawer (16) is not opened and then operating the refrigeration system.

19. The control device (50) according to claim 17, wherein the second determination unit is configured to determine whether the temperature of the temperature-changing chamber (11) is less than or equal to the fourth temperature threshold value after the operation of the refrigeration system; the second processing unit is used for stopping operating the refrigeration system when the temperature of the temperature change chamber (11) is less than or equal to the fourth temperature threshold value, so that the freezing temperature control mode is stopped.

20. A refrigerator (10) comprising a variable temperature chamber (11) and a refrigeration system adapted to generate cold air to cool said chamber (11), said refrigeration system comprising an evaporator arranged in correspondence of said chamber (11), characterized by comprising a control module comprising a processor and a memory, said memory storing a computer program executable on said processor, said computer program, when executed by said processor, implementing a temperature control method according to any one of claims 1 to 11.

21. A refrigerator (10) as in claim 20 characterized by the fact that the refrigerator (10) comprises a closable drawer (16) located inside the temperature variation chamber (11) and a cover adapted to open or close the drawer (16).

22. A refrigerator (10) as claimed in claim 20, characterized in that said refrigeration system comprises a fan adapted to direct said cold air into said temperature-variable chamber (11).