CN116379700A

CN116379700A - Refrigerator, control method, control device and storage medium

Info

Publication number: CN116379700A
Application number: CN202310341076.XA
Authority: CN
Inventors: 崔向前
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-07-04

Abstract

The invention provides a refrigerator, a control method, a control device and a storage medium, wherein the refrigerator comprises a refrigerator body, an air duct assembly, a first evaporator, a second evaporator, a first heater and a second heater, wherein the refrigerator body is provided with a first partition board for separating a refrigerating chamber and a freezing chamber in the refrigerator body; the air duct assembly is arranged in the first partition plate and comprises an air duct shell with a first heat exchange cavity and a second heat exchange cavity, a first air outlet, a first air return opening and a second air outlet which are communicated with the first heat exchange cavity and a second air return opening which is communicated with the second heat exchange cavity are formed in the air duct shell, the first air outlet and the first air return opening are respectively communicated with the refrigerating chamber, and the second air outlet and the second air return opening are respectively communicated with the freezing chamber; the first heater is arranged on one side of the first evaporator and is used for defrosting the first evaporator; the second heater is arranged at one side of the second evaporator and is used for defrosting the second evaporator.

Description

Refrigerator, control method, control device and storage medium

Technical Field

The present invention relates to the field of refrigerators, and in particular, to a refrigerator, a control method, a control device, and a storage medium.

Background

At present, an air-cooled refrigerator forces air convection through a fan to bring cold energy generated by an evaporator into a storage compartment for refrigeration. Most of refrigerators in the related art adopt a mode of back air outlet, namely, air is blown to the front end of a compartment from the rear end of the compartment, and under the condition that more articles are stored in the refrigerator, the air quantity of the front end of the compartment is smaller, so that the temperature difference between the front end and the rear end of the refrigerator is larger, and the refrigerating effect of the refrigerator is influenced. Meanwhile, the return air of each compartment in the air-cooled refrigerator in the related art needs to reach the bottom of the evaporator through the same air inlet, and the humidity of compartments with different temperatures is different, when the return air of each compartment is converged at the bottom of the evaporator, the evaporator is frosted rapidly, and the heater is operated frequently to defrost the evaporator, so that the energy consumption of the refrigerator is improved, and the refrigerating effect of the refrigerator is reduced. Therefore, how to improve the refrigerating effect of the refrigerator and reduce the energy consumption of the refrigerator has become a problem to be solved.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the refrigerator, the control method, the control device and the storage medium, which can effectively improve the refrigerating effect of the refrigerator and reduce the energy consumption of the refrigerator.

In a first aspect, an embodiment of the present invention provides a control method of a refrigerator, the control method including:

the refrigerator comprises a refrigerator body, a refrigerating chamber and a freezing chamber, wherein the refrigerator body is provided with a first partition board for partitioning the refrigerator body into the refrigerating chamber and the freezing chamber;

the air duct assembly is arranged in the first partition plate and comprises an air duct shell with a first heat exchange cavity and a second heat exchange cavity, the air duct shell is provided with a first air outlet, a first air return opening and a second air outlet which are communicated with the first heat exchange cavity, and a second air return opening which is communicated with the second heat exchange cavity, the first heat exchange cavity is positioned above the second heat exchange cavity, the first air outlet and the first air return opening are respectively communicated with the refrigerating chamber, and the second air outlet and the second air return opening are respectively communicated with the freezing chamber;

the first evaporator is arranged in the first heat exchange cavity;

the second evaporator is arranged in the second heat exchange cavity;

the first heater is arranged on one side of the first evaporator and is used for defrosting the first evaporator;

the second heater is arranged on one side of the second evaporator and is used for defrosting the second evaporator.

The refrigerator provided by the embodiment of the invention has at least the following beneficial effects: the air duct assembly, the plurality of evaporators and the plurality of heaters are arranged in a first partition plate of the box body, cold air in a first heat exchange cavity in the air duct shell is conveyed to the refrigerating chamber through a first air outlet, and the cold air enters the first heat exchange cavity through a first air return opening to exchange heat. And cold air in the freezing chamber enters the second heat exchange cavity through the second return air inlet to perform primary heat exchange, and then enters the first heat exchange cavity to perform secondary heat exchange. And the cold air after the secondary heat exchange is conveyed to the freezing chamber through the second air outlet. Therefore, the return air of the freezing chamber and the return air of the refrigerating chamber enter the air duct shell through different return air inlets respectively to exchange heat, so that the return air of different chambers cannot be converged at the same time, the situation that the evaporator is frosted frequently is avoided, and then the heater is not required to be operated frequently to defrost, and meanwhile, the corresponding heater is adopted for defrosting for different evaporators independently, so that defrosting efficiency can be improved, frost energy consumption is saved, and refrigerating effect is improved. Meanwhile, as the air duct component, the evaporators and the heaters do not occupy the back space of the refrigerator body, the depth space in the refrigerator body can be increased, the effective storage space is increased, the effect of air outlet at the side face of each compartment can be achieved, the problems that the air quantity is small and the temperature is uneven in the front end area of the compartment of the refrigerator body are solved, and the refrigerating effect of the refrigerator is improved.

In the refrigerator, the air duct shell is provided with a first air duct component and a second air duct component, the first air outlet is positioned on the first air duct component, and the first air outlet is communicated with the first heat exchange cavity through the first air duct component; the second air outlet is located in the second air duct component, and the second air outlet is communicated with the first heat exchange cavity through the second air duct component.

The first air duct component is used for independently supplying air to the refrigerating chamber, and the second air duct component is used for independently discharging air to the freezing chamber, so that the air outlet quantity of each chamber can be controlled, and accurate temperature control is realized.

In the refrigerator, the first air duct component and the second air duct component are respectively arranged at the top of the air duct shell along the length direction of the air duct shell, and the first air duct component and the second air duct component respectively extend along the height direction of the air duct shell.

The first air channel component and the second air channel component are arranged at the top of the air channel shell, so that the thickness of the first partition plate can be effectively reduced, the first partition plate can be placed in the refrigerator body, and the space in the refrigerator body is saved. Simultaneously, first wind channel part and second wind channel part extend along the direction of height of first baffle respectively to can set up a plurality of air outlets, help improving the air output, improve air supply efficiency.

In the refrigerator, a first air door for controlling the on-off state of the first air channel component is arranged between the first air channel component and the first heat exchange cavity.

Whether the first air channel component is communicated with the first heat exchange cavity or not can be controlled by adjusting the first air door, so that cold air can be controlled to enter the first air channel component and be supplied to the refrigerating chamber through the first air channel component, and therefore, the temperature and the air output of the refrigerating chamber can be controlled by utilizing the first air door.

In the refrigerator, a temperature changing chamber is further arranged in the refrigerator body, the temperature changing chamber is located below the refrigerating chamber, a third air outlet communicated with the first heat exchange cavity and a third air return port communicated with the second heat exchange cavity are further formed in the air duct shell, the third air outlet and the third air return port are respectively communicated with the temperature changing chamber, and the third air return port is located on the side wall of the temperature changing chamber.

Through set up the temperature changing room in the box to set up third air outlet and third return air inlet in wind channel casing, the third return air inlet is located the lateral wall of temperature changing room, thereby can realize that the cold wind of each room gets into wind channel casing from different return air inlets, reduce frosting's condition and appear, improve refrigeration effect.

In the refrigerator, the air duct shell is further provided with a third air duct component, a second partition plate is arranged between the refrigerating chamber and the temperature changing chamber, the third air duct component is arranged on the second partition plate, the third air outlet is located on the third air duct component, and the third air outlet is communicated with the first heat exchange cavity through the third air duct component.

The refrigerating chamber and the temperature changing chamber are separated by the second partition plate, and the third air outlet is formed in the third air channel component, so that independent air supply to the temperature changing chamber can be realized, and meanwhile, the third air channel component is arranged in the second partition plate, so that the space of the temperature changing chamber can be saved.

In the refrigerator, a second air door used for controlling the on-off state of the third air channel component is arranged between the third air channel component and the first heat exchange cavity.

Whether the third air channel component is communicated with the first heat exchange cavity or not can be controlled by adjusting the second air door, so that the air quantity entering the temperature changing chamber can be controlled, and the temperature of the temperature changing chamber is accurately controlled.

In a second aspect, an embodiment of the present invention provides a control method for a refrigerator, which is applied to the refrigerator according to the embodiment of the first aspect, and the control method includes:

Acquiring a first working parameter of the first evaporator and a second working parameter of the second evaporator;

and controlling the first heater and the second heater to independently defrost the first evaporator and the second evaporator respectively in response to the first working parameter and/or the second working parameter meeting a preset defrosting condition.

The control method provided by the embodiment of the invention has at least the following beneficial effects: and whether the first evaporator and the second evaporator need to operate the heater to defrost or not is judged through the first working parameter of the first evaporator and the second working parameter of the second evaporator, so that the energy consumption is increased and the heat exchange efficiency is influenced due to the long-time operation of the heater is avoided. When the first working parameter and/or the second working parameter meet the preset defrosting condition, the first evaporator and/or the second evaporator can be considered to have a defrosting risk, the corresponding heaters are controlled to independently operate, and the corresponding evaporators are independently heated to defrost, so that defrosting time can be shortened, defrosting efficiency is improved, and defrosting energy consumption is reduced.

In the above control method, the preset defrosting condition is that the first working parameter reaches a first defrosting period or the second working parameter reaches a second defrosting period; wherein the first operating parameter is characterized by an operating time of the first evaporator; the second operating parameter is characterized by an operating duration of the second evaporator; the first defrosting cycle and the second defrosting cycle are the same or different.

And judging whether the first heater and the second heater have frosting risks or not according to the operation time of each of the first heater and the second heater. When the operation time of the evaporator reaches the corresponding defrosting period, the evaporator can be considered to have a defrosting risk, and the corresponding heater needs to be operated for independent defrosting, so that the defrosting time is shortened, and the defrosting efficiency is improved.

In the control method, the first heater is controlled to run in a first defrosting duration in response to the first working parameter meeting a preset defrosting condition;

or alternatively, the process may be performed,

controlling the second heater to operate in a second defrosting duration in response to the second operating parameter meeting a preset defrosting condition;

wherein the first defrosting duration and the second defrosting duration are the same or different.

And under the condition that the first evaporator is at risk of frosting, controlling the first heater to independently heat and defrost the first evaporator, and running the first defrosting time. And in the case that the second evaporator is at risk of frosting, controlling the second heater to operate the second evaporator for the second defrosting period alone to heat defrosting. Different evaporators adopt different heaters to independently defrost, and corresponding heaters are controlled to operate for a corresponding defrosting time period according to the different evaporators, so that the defrosting efficiency is improved.

In a third aspect, an embodiment of the present invention provides an operation control device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor executes the computer program to implement the control method according to the embodiment of the first aspect.

The operation control device provided by the embodiment of the invention has at least the following beneficial effects: the operation control device can respectively judge whether the first evaporator and the second evaporator need to operate the heater to defrost through the first working parameter of the first evaporator and the second working parameter of the second evaporator, so that the energy consumption is increased and the heat exchange efficiency is influenced by long-time operation of the heater is avoided. When the first working parameter and/or the second working parameter meet the preset defrosting condition, the first evaporator and/or the second evaporator can be considered to have a defrosting risk, the corresponding heaters are controlled to independently operate, and the corresponding evaporators are independently heated to defrost, so that defrosting time can be shortened, defrosting efficiency is improved, and defrosting energy consumption is reduced.

In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the control method according to the embodiments of the first aspect.

The computer readable storage medium provided according to the embodiment of the invention has at least the following beneficial effects: and whether the first evaporator and the second evaporator need to operate the heater for defrosting or not is judged by using the first working parameter of the first evaporator and the second working parameter of the second evaporator, so that the energy consumption is increased and the heat exchange efficiency is influenced due to the long-time operation of the heater is avoided. When the first working parameter and/or the second working parameter meet the preset defrosting condition, the first evaporator and/or the second evaporator can be considered to have a defrosting risk, the corresponding heaters are controlled to independently operate, and the corresponding evaporators are independently heated to defrost, so that defrosting time can be shortened, defrosting efficiency is improved, and defrosting energy consumption is reduced.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The invention is further described below with reference to the drawings and examples;

fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a schematic view of a part of a structure of a refrigerator according to an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of the structure from another perspective of FIG. 3;

fig. 5 is a flowchart of a control method of a refrigerator provided in an embodiment of the present invention;

fig. 6 is a defrosting control flow chart of a control method of a refrigerator according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an operation control device according to an embodiment of the present invention.

Reference numerals:

a refrigerator 100; a case 110; a first separator 111; a refrigerating chamber 112; a freezing chamber 113; a variable temperature chamber 114; a second separator 115;

an air duct assembly 120; a first heat exchange chamber 121; a second heat exchange chamber 122; an air duct housing 123; a first air outlet 124; a first return air port 125; a second air outlet 126; a second return air port 127; a third air outlet 128; a third return air port 129; a first air channel member 130; a second air channel member 131; a third air channel member 132; a first damper 133; a second damper 134;

a first evaporator 140;

a second evaporator 150;

a first heater 160;

the second heater 170.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.

It should be appreciated that in the description of embodiments of the present invention, the descriptions of "first," "second," etc. are for the purpose of distinguishing between technical features only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. "at least one" means one or more, and "a plurality" means two or more. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items.

Furthermore, unless explicitly specified and limited otherwise, the term "coupled/connected" is to be interpreted broadly, as for example, being either fixedly coupled or movably coupled, being either detachably coupled or not detachably coupled, or being integrally coupled; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium.

In the description of the embodiments of the present invention, the descriptions of the terms "one embodiment/implementation," "another embodiment/implementation," or "certain embodiments/implementations," "the above embodiments/implementations," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or examples is included in at least two embodiments or implementations of the present disclosure. In this disclosure, schematic representations of the above terms do not necessarily refer to the same illustrative embodiment or implementation. It should be noted that although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different from that in the flowchart.

The technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

The embodiment of the invention provides a refrigerator and a control method, a device and a storage medium thereof, wherein an air duct component, a plurality of evaporators and a plurality of heaters are arranged in a first partition plate of a refrigerator body, so that the refrigerator body is divided into a refrigerating chamber and a freezing chamber, a first air outlet, a first air return opening, a second air outlet and a second air return opening are arranged on the air duct component, and the return air of the freezing chamber and the return air of the refrigerating chamber enter an air duct shell through different return openings to exchange heat respectively, so that the return air of different compartments can not be intersected at the same time, the situation that the evaporators are frosted frequently is avoided, and then the operation of the heaters is not required to be performed frequently, meanwhile, whether the first evaporators and the second evaporators need to operate the heaters to perform defrosting is judged respectively, and the independent defrosting is performed by adopting corresponding heaters for different evaporators, so that the defrosting efficiency can be improved, the energy consumption of ice frost can be saved, and the refrigerating effect is improved. Meanwhile, as the air duct component, the evaporators and the heaters do not occupy the back space of the refrigerator body, the depth space in the refrigerator body can be increased, the effective storage space is increased, the effect of air outlet at the side face of each compartment can be achieved, the problems that the air quantity is small and the temperature is uneven in the front end area of the compartment of the refrigerator body are solved, and the refrigerating effect of the refrigerator is improved.

Embodiments of the present invention will be further described below with reference to the accompanying drawings.

In the first aspect, referring to fig. 1 and 2, fig. 1 is a schematic structural view of a refrigerator 100 according to an embodiment of the present invention, and fig. 2 is a schematic structural view of another view of fig. 1. As can be appreciated, the refrigerator 100 includes a case 110, and a first partition 111 is disposed inside the case 110, and the first partition 111 partitions an inner cavity of the case 110 to form a refrigerating chamber 112 and a freezing chamber 113. In an embodiment, the first partition 111 may be vertically disposed inside the case 110, i.e., the inner cavity of the case 110 is partitioned into left and right sides, and the refrigerating chamber 112 is located at the right side of the case 110, and the freezing chamber 113 is located at the left side of the case 110.

The case 110 may include a refrigerating compartment 112 door that opens and closes the refrigerating compartment 112, and a freezing compartment 113 door that opens and closes the freezing compartment 113. The refrigerating chamber 112 door and the freezing chamber 113 door may be hinge-coupled to the front of the cabinet 110 such that the refrigerating chamber 112 door may be rotated to open or close the refrigerating chamber 112 and the freezing chamber 113 door may be rotated to open or close the freezing chamber 113.

Referring to fig. 3, fig. 3 is a schematic view of a portion of a refrigerator 100 according to an embodiment of the present invention. It will be appreciated that the refrigerator 100 further includes a duct assembly 120, a first evaporator 140, a second evaporator 150, a first heater 160, and a second heater 170. Wherein the air duct assembly 120 is installed in the first partition 111, and the first evaporator 140, the second evaporator 150, the first heater 160 and the second heater 170 are all installed on the air duct assembly 120.

The air duct assembly 120 includes an air duct housing 123, the air duct housing 123 having a first heat exchange chamber 121 and a second heat exchange chamber 122. The first evaporator 140 and the first heater 160 are installed in the first heat exchange chamber 121 and the second evaporator 150 and the second heater 170 are installed in the second heat exchange chamber 122. The first evaporator 140 and the second evaporator 150 may be connected, that is, the refrigerants between the first evaporator 140 and the second evaporator 150 may flow through each other, or may be independently arranged, that is, the refrigerants between the first evaporator 140 and the second evaporator 150 may not flow through each other. While the first evaporator 140 and the second evaporator 150 are arranged in series, the working states of the first evaporator 140 and the second evaporator 150 are synchronous, i.e. the two evaporators are simultaneously turned on or simultaneously turned off.

The side wall of the air duct housing 123 is provided with a first air outlet 124, a second air outlet 126, a first air return 125 and a second air return 127. The fan is further disposed in the air duct housing 123, the fan is mounted in the first heat exchange cavity 121 and is close to the first air outlet 124 and the second air outlet 126, the first air outlet 124, the second air outlet 126 and the first air return 125 are respectively communicated with the first heat exchange cavity 121, and the first air outlet 124 and the first air return 125 are respectively communicated with the refrigerating chamber 112, that is, under the driving of the fan, cold air of the refrigerating chamber 112 enters the first heat exchange cavity 121 in the air duct housing 123 through the first air return 125, the first evaporator 140 disposed in the first heat exchange cavity 121 exchanges heat with return air, and the cold air after heat exchange and cooling is conveyed into the refrigerating chamber 112 through the first air outlet 124, thereby realizing circulating refrigeration of the refrigerating chamber 112.

The second air outlet 126 is communicated with the second heat exchange cavity 122, the second heat exchange cavity 122 is communicated with the first heat exchange cavity 121, and the second air outlet 126 and the second air return 127 are respectively communicated with the freezing chamber 113, so that cold air of the freezing chamber 113 enters the second heat exchange cavity 122 in the air duct shell 123 through the second air return 127, and a second evaporator 150 arranged in the second heat exchange cavity 122 exchanges heat with the return air of the freezing chamber 113. Because the cold air temperature required by the freezing chamber 113 is lower than that required by the refrigerating chamber 112, the cooled cold air enters the first heat exchange cavity 121 for secondary heat exchange, and the second heat exchange cavity 122 is positioned below the first heat exchange cavity 121, so that the cold air can exchange heat fully in the first heat exchange cavity 121, and the cooled cold air after the secondary heat exchange is conveyed into the freezing chamber 113 through the second air outlet 126, thereby realizing the circulating refrigeration of the freezing chamber 113.

The first evaporator 140 is used for exchanging heat with the air in the first heat exchange chamber 121, which corresponds to the first evaporator 140 exchanging heat with the return air of the refrigerating chamber 112 and the cool air exchanged with the second heat exchange chamber 122. The second evaporator 150 is used for exchanging heat with the air in the second heat exchange chamber 122, which is equivalent to that the second evaporator 150 only needs to exchange heat with the return air of the freezing chamber 113, that is, the heat exchanging amounts required by the first evaporator 140 and the second evaporator 150 may be different, and the frost risk of the first evaporator 140 may be different from that of the second evaporator 150.

Therefore, the first evaporator 140 and the second evaporator 150 are respectively provided with the corresponding heaters for heating and defrosting, and can be independently defrosted according to the frost formation risk of the corresponding evaporators, namely, one side of the first evaporator 140 is provided with the first heater 160, the first heater 160 is only used for heating and defrosting the first evaporator 140, one side of the second evaporator 150 is provided with the second heater 170, the second heater 170 is only used for heating and defrosting the second evaporator 150, and different evaporators can be independently heated and defrosted without interference, so that defrosting efficiency can be improved, defrosting time can be shortened, defrosting energy consumption can be reduced, and refrigerating efficiency can be improved.

Wherein, the two side walls of the first partition 111 are respectively provided with through holes corresponding to the first air outlet 124, the first air return opening 125, the second air outlet 126 and the second air return opening 127 one by one, the first air outlet 124 and the first air return opening 125 are positioned on the side wall of the first partition 111 facing the refrigerating chamber 112, and simultaneously, the second air outlet 126 and the second air return opening 127 are positioned on the other side wall of the first partition 111 facing the freezing chamber 113, thereby realizing the lateral air outlet of the refrigerating chamber 112 and the freezing chamber 113. Compared with the air-cooled refrigerator 100 adopting the rear end air outlet mode in the related art, namely, the scheme that the freezing air supply component and the refrigerating chamber 112 air supply component are arranged at the rear end of the box body 110 is adopted, the air supply component occupies the rear end space of the box body 110, influences the depth of a drawer and further influences the effective storage space, and meanwhile, because cold air is blown to the front end from the rear end of the box body 110, under the condition of storing more foods, the air quantity of the front end of the box body 110 is smaller, the temperature distribution in the same room is uneven, the temperature in the front end area is higher, and the food preservation is not facilitated.

In the embodiment of the invention, the air duct assembly 120, the plurality of evaporators and the plurality of heaters are all arranged in the first partition 111, so that the rear end space of the refrigerator body 110 is not required to be occupied, the depth space inside the refrigerator body 110 can be increased, the effective storage space is increased, the air outlet effect of the side surfaces of each compartment can be achieved, the problem of uneven temperature caused by small air quantity in the front end area of the compartment of the refrigerator body 110 can be solved, and the refrigerating effect and the fresh-keeping effect of the refrigerator 100 are improved. Meanwhile, since the temperature of the freezing chamber 113 is lower than that of the refrigerating chamber 112, the humidity of the freezing chamber 113 is lower than that of the refrigerating chamber 112, and when the gases with different humidity and temperature are simultaneously converged at the evaporator, the evaporator is easily frosted, so that the heater needs to be frequently operated to heat the frosting, the energy consumption of the refrigerator 100 is affected, and the refrigerating efficiency of the refrigerator 100 is also reduced.

In the embodiment of the invention, the positions of the first air return port 125 and the second air return port 127 are different, the first air return port 125 is connected to the first heat exchange cavity 121, and the second air return port 127 is connected to the second heat exchange cavity 122, so that the return air of the freezing chamber 113 and the return air of the refrigerating chamber 112 cannot be intersected at the same time, the situation that the evaporator is frosted frequently is avoided, the frosting interval time of the evaporator is increased, the heater is not required to be operated frequently for defrosting, and the working interval time of the heater is correspondingly increased, namely, the energy consumption of the refrigerator 100 can be reduced, and the refrigerating efficiency of the refrigerator 100 is improved.

Referring to fig. 3 and 4, fig. 4 is a schematic view of a portion of the structure of fig. 3 from another view, it is to be understood that the air duct housing 123 includes a housing body, a first air duct member 130 and a second air duct member 131, the first air duct member 130 and the second air duct member 131 are respectively in communication with the first heat exchange chamber 121, the first air outlet 124 is located on the first air duct member 130, and the second air outlet 126 is located on the second air duct member 131, so that cold air in the first heat exchange chamber 121 can be delivered to the first air outlet 124 through the first air duct member 130, and the cold air is supplied from the first air outlet 124 to the refrigerating chamber 112.

The cold air in the first heat exchange chamber 121 can also be delivered to the second air outlet 126 through the second air duct member 131, and the cold air is blown from the second air outlet 126 to the freezing chamber 113. Therefore, the first duct member 130 can be used to supply air alone to the refrigerator compartment 112, and the second duct member 131 can be used to supply air alone to the freezer compartment 113, so that the control of the air output of both the refrigerator compartment 112 and the freezer compartment 113 can be facilitated, and the accuracy of temperature control can be improved. In addition, in order to save the volume of the first partition 111, the thicknesses of both the first air duct member 130 and the second air duct member 131 are less than or equal to the thickness of the air duct housing 123, so that the thickness of the air duct assembly 120 can be compressed, which facilitates the installation of the air duct assembly 120, the plurality of evaporators and the plurality of heaters in the first partition 111, and simultaneously facilitates the adjustment of the positions of the first air outlet 124 and the second air outlet 126 on the housing body to supply air to the refrigerating chamber 112 and the freezing chamber 113.

It will be appreciated that the first air duct member 130 and the second air duct member 131 are disposed at the top of the air duct housing 123, i.e., the top of the housing body, respectively, and the first air duct member 130 and the second air duct member 131 are arranged along the length direction of the air duct housing 123, respectively, and simultaneously, the first air duct member 130 and the second air duct member 131 extend along the height direction of the air duct housing 123, respectively, thereby saving the space of the air duct assembly 120 in the width by using the space of the first partition 111, effectively reducing the thickness of the first partition 111, and facilitating the placement of the first partition 111 in the case 110 of the refrigerator 100.

And the first air duct member 130 and the second air duct member 131 extend in the height direction of the air duct housing 123, respectively, it is possible to facilitate the arrangement of the air outlets according to the respective sizes of both the refrigerating chamber 112 and the freezing chamber 113. For example, referring to fig. 3 and 4, three first air outlets 124 are disposed on the air duct housing 123, the three first air outlets 124 are spaced apart on the first air duct member 130, and the three first air outlets 124 are all oriented to one side of the refrigerating chamber 112; and four second air outlets 126 may be provided, wherein three second air outlets 126 are spaced apart on the second air duct member 131, one second air outlet 126 is located on the housing body, and the plurality of second air outlets 126 are all directed to one side of the freezing chamber 113. The first and

second duct members

130 and 131 extend in the height direction of the duct housing 123, and thus positions where air outlets can be arranged can be increased, so that a plurality of air outlets can be provided to supply air to the refrigerating chamber 112 and the freezing chamber 113, and air supply efficiency can be improved. The number and positions of the first air outlets 124 and the second air outlets 126 may be adjusted according to the sizes of the refrigerating chamber 112 and the freezing chamber 113, so as to improve the air supply effect of the freezing chamber 113 and the refrigerating chamber 112.

It should be noted that, the first air outlet 124 is distributed at the upper portion of the refrigerating chamber 112, and the first air return 125 is distributed at the bottom portion of the refrigerating chamber 112; accordingly, the second air outlets 126 are distributed at the upper part of the freezing chamber 113, and the second air outlets 127 are distributed at the bottom of the freezing chamber 113, so that the cold air can flow from top to bottom in the two compartments, the cold air utilization rate is improved, and the refrigerating efficiency is improved.

It will be appreciated that since the first air duct member 130 is used to supply air to the refrigerating compartment 112 and the second air duct member 131 is used to supply air to the freezing compartment 113, and the refrigerating compartment 112 is at a higher temperature than the freezing compartment 113, but the first heat exchanging cavity 121 is respectively communicated with the first air duct member 130 and the second air duct member 131, and cool air is simultaneously supplied to the first air duct member 130 and the second air duct member 131 through the first heat exchanging cavity 121.

Therefore, a first air door 133 is disposed between the first air duct member 130 and the first heat exchange chamber 121, and the first air door 133 can adjust the size of the communication area between the first air duct member 130 and the first heat exchange chamber 121, that is, control whether the first air duct member 130 is communicated with the first heat exchange chamber 121, so as to adjust the air volume delivered by the first heat exchange chamber 121 to the first air duct member 130, further adjust the air volume delivered to the refrigerating chamber 112, and control the temperature of the refrigerating chamber 112.

It can be understood that the temperature changing chamber 114 is further disposed in the box 110, the temperature changing chamber 114 is located below the refrigerating chamber 112, the air duct housing 123 is further provided with a third air outlet 128 and a third air return 129, the third air outlet 128 and the third air return 129 are respectively communicated with the temperature changing chamber 114, the third air outlet 128 is communicated with the first heat exchange cavity 121, and the third air return 129 is communicated with the second heat exchange cavity 122, so that cold air of the temperature changing chamber 114 enters the second heat exchange cavity 122 of the air duct housing 123 through the third air return 129 to exchange heat and cool, the cooled cold air enters the first heat exchange cavity 121 to exchange heat secondarily, and the cold air after secondary heat exchange is conveyed to the temperature changing chamber 114 through the third air outlet 128. The third air return port 129 is located on the side wall of the variable temperature chamber 114, that is, the positions of the third air return port 129 and the second air return port 127 are different, so as to avoid the direct intersection of the return air of the variable temperature chamber 114 and the return air of the freezing chamber 113, which results in rapid frosting of the second evaporator 150.

It will be appreciated that a second partition 115 is further disposed within the case 110, and the second partition 115 is configured to separate the refrigerating compartment 112 from the temperature changing compartment 114, i.e., the second partition 115 is located between the refrigerating compartment 112 and the temperature changing compartment 114. The air duct housing 123 is provided with a third air duct component 132, the third air duct component 132 is located in the second partition 115, the third air duct component 132 is communicated with the first heat exchange cavity 121, and the third air outlet 128 is located in the third air duct component 132, so that cold air after heat exchange in the first heat exchange cavity 121 is conveyed to the third air outlet 128 through the third air duct component 132 and is supplied to the temperature changing chamber 114 through the third air outlet 128, and therefore, the temperature changing chamber 114 can be cooled by supplying air, and meanwhile, the space of the temperature changing chamber 114 is saved.

It can be appreciated that, because the temperature of the temperature changing chamber 114 can be adjusted according to the user requirement, the second air door 134 is disposed between the third air duct component 132 and the first heat exchanging cavity 121, the second air door 134 can adjust the size of the area between the third air duct component 132 and the first heat exchanging cavity 121, that is, control whether the third air duct component 132 is communicated with the first heat exchanging cavity 121, so as to adjust the air volume delivered to the third air duct component 132 by the first heat exchanging cavity 121, further adjust the air volume delivered to the temperature changing chamber 114, and accurately control the temperature of the temperature changing chamber 114.

It should be noted that, in the assembly process of the refrigerator 100 according to the embodiment, the plurality of evaporators and the plurality of heaters are installed in the air duct housing 123, and then the air duct assembly 120, the plurality of evaporators and the plurality of heaters are integrally installed in the reserved space in the first partition 111, and are foamed after being assembled in place, so that the air duct assembly 120, the plurality of evaporators and the plurality of heaters are embedded in the box 110, and the structure is stable and reliable.

Based on the structure of the refrigerator 100 described above, various embodiments of the control method of the refrigerator of the present invention are presented.

Referring to fig. 5, fig. 5 is a flowchart of a control method of a refrigerator according to an embodiment of the present invention, which may be applied to the refrigerator 100 shown in fig. 1 to 4, including, but not limited to, the steps of:

Step S101, obtaining a first working parameter of a first evaporator and a second working parameter of a second evaporator;

step S102, in response to the first operating parameter and/or the second operating parameter meeting the preset defrosting condition, the first heater and the second heater are controlled to perform independent defrosting on the first evaporator and the second evaporator respectively.

It can be understood that the frost formation risks of the first evaporator and the second evaporator are respectively judged through the first working parameter of the first evaporator and the working parameter of the second evaporator, whether the first evaporator and the second evaporator need to operate the heater to defrost is respectively judged, meanwhile, the first evaporator and the second evaporator are respectively provided with a heater for heating defrosting in a targeted manner, namely, one side of the first evaporator is provided with a first heater for heating defrosting of the first evaporator, and one side of the second evaporator is provided with a second heater for heating defrosting of the second evaporator. And under the condition that the first working parameter and/or the second working parameter meet the preset defrosting condition, namely the first evaporator and/or the second evaporator are stored in the defrosting wind direction, controlling the corresponding heater to operate, and independently heating and defrosting the corresponding evaporator to shorten defrosting time. By adopting different heaters to independently defrost the corresponding evaporators, defrosting efficiency can be improved, and the problem that energy consumption is increased and heat exchange efficiency is influenced due to long-time operation of the heaters is avoided.

It is understood that the first operating parameter may be a first evaporation temperature of the first evaporator and the second operating parameter may be a second evaporation temperature of the second evaporator. The preset defrosting condition may be that the first working parameter reaches a first temperature threshold, or that the second evaporating temperature reaches a second temperature threshold, which is equivalent to that when the first evaporating temperature of the first evaporator reaches the first temperature threshold, the first evaporator is considered to be free of a frosting risk currently, so that the first heater can be controlled to stop working; accordingly, when the second evaporation temperature of the second evaporator reaches the second temperature threshold, the second evaporator can be considered to be free of the risk of frosting currently, and therefore the second heater can be controlled to stop working.

With reference to fig. 6, fig. 6 is a flowchart of defrosting control of a control method of a refrigerator according to an embodiment of the present invention, it may be understood that the refrigerator performs conventional refrigeration, and when a refrigerating requirement exists in a compartment, the compressor is driven to be turned on, and the first evaporator and the second evaporator operate synchronously. The first operating parameter may be an operating duration of the first evaporator and the second operating parameter may be an operating duration of the second evaporator. When the evaporator runs for a long time, the surface of the evaporator is easy to frost. Therefore, the preset defrosting condition is that the first working parameter reaches the first defrosting period, or the second working parameter reaches the second defrosting period, which is equivalent to that when the operation duration of the first evaporator reaches the first defrosting period, the first evaporator can be considered to have a frosting risk; and the second evaporator is operated for a second defrosting period, the second evaporator is considered to have a frosting risk. Because the heat exchange amounts of the first evaporator and the second evaporator may be the same or different, even if the first evaporator and the second evaporator operate synchronously, the frosting risks of the first evaporator and the second evaporator may be the same or different at the same time, and therefore, the first frosting period and the second frosting period may be the same or different, so that whether the frosting risks of the evaporators exist can be judged singly and accurately. When the first working parameter reaches a first defrosting period, controlling the first heater to work, and independently heating and defrosting the first evaporator; and stopping working when the first heater finishes the heating defrosting operation, and continuing to perform conventional refrigeration of the refrigerating chamber, wherein when the running working time of the first heater reaches a preset time threshold or the temperature of the first evaporator reaches a preset temperature threshold, the heating defrosting operation can be considered to be finished.

It should be noted that, the first defrosting cycle and the second defrosting cycle may be preset fixed parameters, and may also be adjusted according to the temperature and humidity of the corresponding compartments, the times and time of opening and closing the doors of the compartments, and the load states of the corresponding evaporators. For example, the first defrosting cycle may determine an initial defrosting cycle according to the current temperature and humidity of the refrigerating chamber, and the lower the temperature and the higher the humidity, the shorter the initial defrosting cycle. And after the initial defrosting period is determined, the number of opening and closing times of the door of the refrigerating chamber and the opening time of the door are recorded, the initial defrosting period is shortened according to the number of opening and closing times of the door and the opening time of the door, the more the number of opening and closing times of the door or the longer the opening time of the door is, the more the time for shortening the initial defrosting period is, and the first defrosting period is further determined. In addition, the first defrosting cycle is adjusted according to the operation duration of the first heater, for example, when the continuous operation duration of the first heater exceeds a predetermined threshold, the first evaporator is considered to have a high risk of frosting, and frequent heating of the defrosting is required to reduce the risk of frosting, so that the first defrosting cycle can be reduced when the continuous operation duration of the first heater exceeds the predetermined threshold.

It will be appreciated that in the case where the first operating parameter meets the preset defrosting condition, the first evaporator may be considered to have a risk of frosting, and the first heater needs to be controlled to perform independent heating defrosting on the first evaporator. To ensure that the first evaporator is able to remove the risk of frosting, it is necessary to control the first heater to operate for a first period of time. Correspondingly, in the case that the second operating parameter meets the preset defrosting condition, the second heater needs to be controlled to operate for a second defrosting duration. Since the heat exchange amounts of the first evaporator and the second evaporator may be different, and the heat generation efficiencies of the first heater and the second heater may be different, the first defrosting duration for ensuring that the first evaporator removes the risk of frosting is the same as or different from the second defrosting duration for ensuring that the second evaporator removes the risk of frosting. According to different evaporators and different heaters, the corresponding heaters are controlled to operate for a corresponding time period for heating defrosting, and defrosting efficiency can be improved.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an operation control device 700 according to a third aspect of the present invention, where the operation control device 700 includes: the refrigerator control method of the above embodiment is implemented by the processor 720 when the processor 720 executes the computer program stored on the memory 710, and the processor 720 and the computer program stored on the memory 710 and executable on the processor 720.

The memory 710, as a non-transitory computer readable storage medium, may be used to store a non-transitory software program and a non-transitory computer executable program, such as the control method of the refrigerator in the above-described embodiments of the present invention. The processor 720 implements the control method of the refrigerator in the above-described embodiment of the present invention by running a non-transitory software program and instructions stored in the memory 710.

Memory 710 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data and the like required to perform the control method of the refrigerator in the above-described embodiments. In addition, the memory 710 may include high-speed random access memory 710, and may also include non-transitory memory 710, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. It should be noted that the memory 710 may alternatively include a memory 710 remotely located with respect to the processor 720, and that these remote memories 710 may be connected to the terminal through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

A non-transitory software program and instructions required to implement the control method of a refrigerator in the above-described embodiments are stored in the memory, and when executed by the one or more processors, the control method of a refrigerator in the above-described embodiments is performed, for example, the method steps S101 to S102 in fig. 5 described above are performed.

A fourth aspect embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions that can be used to cause a computer to perform the method of controlling a refrigerator according to the second aspect embodiment above, for example, performing the method steps S101 to S102 in fig. 5 described above.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media or non-transitory media and communication media or transitory media. The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk DVD or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims

1. A refrigerator, comprising:

the first evaporator is arranged in the first heat exchange cavity;

the second evaporator is arranged in the second heat exchange cavity;

2. The refrigerator of claim 1, wherein the air duct housing is provided with a first air duct component and a second air duct component, the first air outlet being located in the first air duct component, the first air outlet being in communication with the first heat exchange chamber through the first air duct component; the second air outlet is located in the second air duct component, and the second air outlet is communicated with the first heat exchange cavity through the second air duct component.

3. The refrigerator of claim 2, wherein the first air duct member and the second air duct member are disposed at a top of the air duct housing in a longitudinal direction of the air duct housing, respectively, and the first air duct member and the second air duct member extend in a height direction of the air duct housing, respectively.

4. The refrigerator of claim 1, wherein a first damper for controlling an on-off state of the first air duct member is provided between the first air duct member and the first heat exchange chamber.

5. The refrigerator according to claim 1, wherein a temperature changing chamber is further arranged in the refrigerator body, the temperature changing chamber is located below the refrigerating chamber, a third air outlet communicated with the first heat exchanging cavity and a third air return port communicated with the second heat exchanging cavity are further formed in the air duct shell, the third air outlet and the third air return port are respectively communicated with the temperature changing chamber, and the third air return port is located on the side wall of the temperature changing chamber.

6. The refrigerator of claim 5, wherein the air duct housing is further provided with a third air duct member, a second partition is provided between the refrigerating chamber and the temperature changing chamber, the third air duct member is provided to the second partition, the third air outlet is located at the third air duct member, and the third air outlet communicates with the first heat exchange chamber through the third air duct member.

7. The refrigerator of claim 6, wherein a second damper for controlling an on-off state of the third air duct member is provided between the third air duct member and the first heat exchange chamber.

8. A control method of a refrigerator, characterized by being applied to the refrigerator according to any one of claims 1 to 7, comprising:

9. The control method according to claim 8, wherein the preset defrosting condition is that the first operating parameter reaches a first defrosting cycle or that the second operating parameter reaches a second defrosting cycle; wherein the first operating parameter is characterized by an operating time of the first evaporator; the second operating parameter is characterized by an operating duration of the second evaporator; the first defrosting cycle and the second defrosting cycle are the same or different.

10. The control method of claim 8, wherein the first heater is controlled to operate for a first defrosting duration in response to the first operating parameter meeting a preset defrosting condition;

or alternatively, the process may be performed,

11. An operation control device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, the processor implementing the control method of the refrigerator according to any one of claims 8 to 10 when executing the computer program.

12. A computer-readable storage medium storing computer-executable instructions for causing a computer to execute the control method of the refrigerator according to any one of claims 8 to 10.