Refrigerator structure, method for controlling refrigerator, and refrigerator

Abstract

A refrigerator structure (100), a method for controlling a refrigerator (1000), and a refrigerator (1000). The refrigerator structure (100) comprises a main body (1). A first compartment (11) and a second compartment (12) are formed at an interval in an inner cavity of the main body (1). A cooling cavity (13) is formed in a cavity wall of the main body (1). An evaporator (2) is provided in the cooling cavity (13). The refrigerator (1000) further comprises a first refrigeration cycle system (3) and a second refrigeration cycle system (4). The first refrigeration cycle system (3) comprises a first air supply channel (31) and a first air return channel (32), and the first air supply channel (31) and the first air return channel (32) are both connected to the first compartment (11) and the cooling cavity (13). The second refrigeration cycle system (4) comprises a second air supply channel (41) and a second air return channel (42), and the second air supply channel (41) and the second air return channel (42) are both connected to the second compartment (12) and the cooling cavity (13).

Description

Refrigerator structure, refrigerator control methods, and refrigerator

[0001] This application claims priority to Chinese patent application No. 202411456867.8, filed on October 17, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of refrigerator structure technology, and in particular to a refrigerator structure, a refrigerator control method, and a refrigerator. Background Technology

[0003] Currently, most double-door or French three-door frost-free refrigerators on the market have multi-temperature zone switching functions to meet the different needs of users. However, the implementation of multi-temperature zones mostly adopts dual-system control, which requires dual fans, dual evaporators, solenoid valves and other components to complete the refrigeration system cycle matching. There are many components, poor manufacturability, and relatively difficult quality management. Technical issues

[0004] The main purpose of this application is to propose a refrigerator structure, a refrigerator control method, and a refrigerator, with the aim of proposing a single-system dual-cycle refrigerator. Technical solutions

[0005] To achieve the above objectives, this application proposes a refrigerator structure, wherein the refrigerator structure includes a main body, the inner cavity of the main body is divided into a first compartment and a second compartment, a cooling cavity is formed within the cavity wall of the main body, and an evaporator is disposed within the cooling cavity, and the refrigerator structure further includes:

[0006] A first refrigeration cycle system includes a first air supply duct and a first air return duct, both of which connect the first compartment to the cooling chamber. A first fan is installed in the first air supply duct.

[0007] The second refrigeration cycle system includes a second air supply duct and a second air return duct. Both the second air supply duct and the second air return duct are connected to the second compartment and the cooling chamber. A second fan is installed in the second air supply duct.

[0008] In one embodiment, a partition cavity is formed between the cooling cavity and the inner cavity of the main body, and the partition cavity is provided with a first air inlet cavity and a second air inlet cavity that are respectively connected to the cooling cavity;

[0009] The first air supply channel includes the first air inlet cavity, and the first fan is disposed in the first air inlet cavity;

[0010] The second air supply channel includes the second air inlet cavity, and the second fan is disposed in the second air inlet cavity.

[0011] In one embodiment, a partition is provided inside the partition cavity to separate the first air inlet cavity and the second air inlet cavity.

[0012] In one embodiment, the first air inlet cavity and the second air inlet cavity are distributed along a first horizontal direction.

[0013] In one embodiment, the second compartment is located above the first compartment;

[0014] The spacer cavity is located between the cooling cavity and the first chamber.

[0015] In one embodiment, at least a section of the second return air duct is located on the side of the cooling cavity opposite to the isolation cavity, and the second return air duct is connected to the lower end of the cooling cavity, and the first return air duct is connected to the lower end of the cooling cavity.

[0016] The first air inlet cavity and the second air inlet cavity are connected to the cooling cavity at a position close to the upper end of the cooling cavity.

[0017] In one embodiment, the second air supply channel and the second return air channel are distributed in a first horizontal direction.

[0018] This application also proposes a refrigerator control method, wherein the refrigerator includes a refrigerator structure and a compressor connected to an evaporator. The refrigerator structure includes a main body, and the inner cavity of the main body is divided into a first compartment and a second compartment. A cooling cavity is formed within the cavity wall of the main body, and an evaporator is disposed within the cooling cavity. The refrigerator structure further includes a first refrigeration cycle system and a second refrigeration cycle system. The first refrigeration cycle system includes a first air supply channel and a first air return channel, both of which connect the first compartment and the cooling cavity. A first fan is disposed within the first air supply channel. The second refrigeration cycle system includes a second air supply channel and a second air return channel, both of which connect the second compartment and the cooling cavity. A second fan is disposed within the second air supply channel. The steps of the refrigerator control method include:

[0019] During the refrigerator's operation, the target temperature and current temperature of the first and second compartments are obtained.

[0020] Based on the relationship between the current temperature and the target temperature of the first and second chambers, the first and second fans are controlled to operate so that the first and second chambers can reach the corresponding target temperatures.

[0021] In one embodiment, the step of controlling the operation of the first fan and the second fan respectively based on the relationship between the current temperature and the target temperature of the first and second chambers includes:

[0022] When the current temperature of one of the first and second chambers reaches its corresponding target temperature first, control one of the corresponding first and second fans to stop.

[0023] Next, when the current temperature of one of the first and second chambers reaches its corresponding target temperature, the corresponding first and second fans are controlled to stop, and the compressor is controlled to shut down or operate at a reduced frequency.

[0024] In one embodiment, the step of acquiring the target temperature and current temperature of the first and second compartments during the refrigerator's operation includes:

[0025] During the refrigerator's operation, the refrigerator's cooling mode is obtained.

[0026] Obtain the target temperatures of the first and second compartments pre-stored in the refrigerator's cooling mode.

[0027] In one embodiment, the step of obtaining the target temperatures of the first and second compartments corresponding to the pre-stored values ​​in the refrigerator's cooling mode includes:

[0028] Get the cooling level of the refrigerator in cooling mode;

[0029] Obtain the target temperature of the first and second rooms corresponding to the cooling level.

[0030] In one embodiment, the second compartment is located above the first compartment;

[0031] The refrigerator's cooling modes include an upper refrigerator and lower freezer mode, a full refrigerator mode, and a full freezer mode. In the upper refrigerator and lower freezer mode, the target temperature value of the second compartment is lower than the target temperature value of the first compartment. In the full refrigerator mode and the full freezer mode, the target temperature values ​​of the first compartment and the second compartment are equivalent, and the target temperature value corresponding to the full refrigerator mode is higher than the target temperature value corresponding to the full freezer mode.

[0032] In one embodiment, the step of obtaining the target temperatures of the first and second compartments corresponding to the pre-stored values ​​in the refrigerator's cooling mode includes:

[0033] Obtain the pre-stored target temperatures of the first and second compartments corresponding to the upper refrigeration and lower freezing modes;

[0034] Correspondingly, the step of controlling the first fan and the second fan to operate according to the relationship between the current temperature and the target temperature of the first and second rooms, so that the first and second rooms can reach the corresponding target temperatures, includes:

[0035] Control the second fan to operate intermittently at preset start and stop times.

[0036] This application also proposes a refrigerator, wherein the refrigerator comprises:

[0037] A refrigerator structure includes a main body, the inner cavity of which is divided into a first compartment and a second compartment. A cooling chamber is formed within the cavity wall of the main body, and an evaporator is disposed within the cooling chamber. The refrigerator structure also includes a first refrigeration cycle system and a second refrigeration cycle system. The first refrigeration cycle system includes a first air supply duct and a first air return duct, both of which connect the first compartment to the cooling chamber. A first fan is disposed within the first air supply duct. The second refrigeration cycle system includes a second air supply duct and a second air return duct, both of which connect the second compartment to the cooling chamber. A second fan is disposed within the second air supply duct.

[0038] The compressor is connected to the evaporator; and,

[0039] The control device is electrically connected to the compressor, the first fan, and the second fan.

[0040] In one embodiment, the control device includes a memory, a processor, and a refrigerator control program stored in the memory and executable on the processor, the refrigerator control program being configured to implement the steps of the refrigerator control method described above. Beneficial effects

[0041] In the technical solution of this application, the refrigerator includes a first compartment and a second compartment to form two refrigeration chambers. Regarding the temperature zoning control method for the two refrigeration chambers, this application sets up independent first and second refrigeration cycle systems, corresponding to the first and second compartments respectively. Independent temperature control of the first and second compartments is achieved by separately controlling the first and second fans, satisfying the temperature zoning control requirements. Simultaneously, the first and second refrigeration cycle systems share a single cooling chamber. A single evaporator located within the cooling chamber satisfies the air-cooling cycle of both systems, thus realizing the single-refrigeration-system dual-cycle refrigerator proposed in this application. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0043] Figure 1 is a perspective structural diagram of an embodiment of the refrigerator provided in this application;

[0044] Figure 2 is a three-dimensional structural diagram of part of the structure in Figure 1;

[0045] Figure 3 is a three-dimensional structural diagram of part of the structure in Figure 2;

[0046] Figure 4 is a three-dimensional structural diagram of part of the structure in Figure 3;

[0047] Figure 5 is a cross-sectional schematic diagram of the refrigerator in Figure 1 at the second return air duct;

[0048] Figure 6 is a simplified diagram of the control circuits for each component of the refrigerator provided in this application;

[0049] Figure 7 is a flowchart illustrating the first embodiment of the refrigerator control method provided in this application;

[0050] Figure 8 is a flowchart illustrating a second embodiment of the refrigerator control method provided in this application;

[0051] Figure 9 is a flowchart illustrating a third embodiment of the refrigerator control method provided in this application;

[0052] Figure 10 is a flowchart illustrating the fourth embodiment of the refrigerator control method provided in this application;

[0053] Figure 11 is a flowchart illustrating the fifth embodiment of the refrigerator control method provided in this application.

[0054] Explanation of icon numbers:

[0055] 1000. Refrigerator; 100. Refrigerator Structure; 1. Main Body; 11. First Compartment; 12. Second Compartment; 13. Cooling Chamber; 2. Evaporator; 3. First Refrigeration Cycle System; 31. First Air Supply Channel; 32. First Air Return Channel; 33. First Fan; 4. Second Refrigeration Cycle System; 41. Second Air Supply Channel; 42. Second Air Return Channel; 43. Second Fan; 5. Partition Chamber; 51. First Air Inlet Chamber; 52. Second Air Inlet Chamber; 53. Partition; 200. Control Device; 1001. Processor; 1002. Communication Bus; 1003. User Interface; 1004. Network Interface; 1005. Memory.

[0056] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0058] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0059] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0060] Currently, most double-door or French three-door frost-free refrigerators on the market have multi-temperature zone switching functions to meet the different needs of users. However, the implementation of multi-temperature zones mostly adopts dual-system control, which requires dual fans, dual evaporators, solenoid valves and other components to complete the refrigeration system cycle matching. There are many components, poor manufacturability, and relatively difficult quality management.

[0061] This application proposes a refrigerator structure. Please refer to Figures 1 to 6 for embodiments of the refrigerator structure proposed in this application. The refrigerator structure will be described in detail below with reference to the specific figures.

[0062] Please refer to Figures 1 to 6. The refrigerator structure 100 includes a main body 1. The inner cavity of the main body 1 is divided into a first compartment 11 and a second compartment 12. A cooling cavity 13 is formed in the cavity wall of the main body 1. An evaporator 2 is disposed in the cooling cavity 13. The refrigerator structure 100 also includes a first refrigeration cycle system 3 and a second refrigeration cycle system 4. The first refrigeration cycle system 3 includes a first air supply channel 31 and a first air return channel 32. The first air supply channel 31 and the first air return channel 32 are both connected to the first compartment 11 and the cooling cavity 13. A first fan 33 is disposed in the first air supply channel 31. The second refrigeration cycle system 4 includes a second air supply channel 41 and a second air return channel 42. The second air supply channel 41 and the second air return channel 42 are both connected to the second compartment 12 and the cooling cavity 13. A second fan 43 is disposed in the second air supply channel 41.

[0063] In the technical solution of this application, the refrigerator 1000 includes a first compartment 11 and a second compartment 12 to form two refrigeration chambers of the refrigerator 1000. For the temperature zoning control method of the two refrigeration chambers, this application sets up an independent first refrigeration cycle system 3 and a second refrigeration cycle system 4 to correspond to the first compartment 11 and the second compartment 12 respectively. By controlling the first fan 33 and the second fan 43 separately, the temperature of the first compartment 11 and the second compartment 12 can be independently controlled to meet the temperature zoning control requirements. At the same time, the first refrigeration cycle system 3 and the second refrigeration cycle system 4 share a cooling cavity 13. By setting a single evaporator 2 in the cooling cavity 13, the air-cooling cycle of the first refrigeration cycle system 3 and the second refrigeration cycle system 4 is satisfied, realizing the single refrigeration system dual-cycle refrigerator 1000 proposed in this application.

[0064] It is understandable that in the refrigerator structure 100 configured in this way, the temperature in the first compartment 11 and the second compartment 12 is mainly controlled by the air volume circulating in the first refrigeration cycle system 3 and the second refrigeration cycle system 4, that is, mainly by the operating status of the first fan 33 and the second fan 43, i.e., the fan operating power and the start and stop of the fan. In addition, since the first refrigeration cycle system 3 and the second refrigeration cycle system 4 share a cooling chamber 13, in order to reduce the interference between them, the air inlets of the first air supply channel 31 and the second air supply channel 41 should be separated as much as possible, or the first fan 33 and the second fan 43 should be separated, depending on the setting position of the first fan 33 in the first air supply channel 31 and the setting position of the second fan 43 in the second air supply channel 41.

[0065] Specifically, a spacer cavity 5 is formed between the cooling cavity 13 and the inner cavity of the main body 1. The spacer cavity 5 is provided with a first air inlet cavity 51 and a second air inlet cavity 52 that are respectively connected to the cooling cavity 13. The first air supply channel 31 includes the first air inlet cavity 51 and the first fan 33 is disposed in the first air inlet cavity 51. The second air supply channel 41 includes the second air inlet cavity 52 and the second fan 43 is disposed in the second air inlet cavity 52. In this embodiment, the first fan 33 is located at the air inlet end of the first air supply channel 31, and the second fan 43 is also located at the air inlet end of the second air supply channel 41. This facilitates fan installation and allows for free adjustment of fan size, unrestricted by the structure of the first air supply channel 31 and the second air supply channel 41. Based on this, the first fan 33 and the second fan 43 should be spaced apart to avoid interference between the two refrigeration cycle systems. Therefore, in this embodiment, the spacer cavity 5 is provided between the cooling cavity 13 and the inner cavity of the main body 1, and the spacer cavity 5 is further divided into the first air inlet cavity 51 and the second air inlet cavity 52. ​​The first air inlet cavity 51 serves as the air inlet end of the first air supply channel 31, providing sufficient space for installing the first fan 33. Similarly, the second air inlet cavity 52 provides sufficient space for installing the second fan 43. The spaced arrangement of the first air inlet cavity 51 and the second air inlet cavity 52 effectively separates the first fan 33 and the second fan 43, satisfying the requirement to reduce interference between them.

[0066] Specifically, a partition 53 is provided within the partition cavity 5 to separate the first air inlet cavity 51 and the second air inlet cavity 52. ​​In this embodiment, the partition 53 is directly provided within the partition cavity 5 to divide the partition cavity 5 into the first air inlet cavity 51 and the second air inlet cavity 52, resulting in a simple structure, low cost, and good effect. In other embodiments, the first air inlet cavity 51 and the second air inlet cavity 52, which connect to the cooling cavity 13, can be independently provided and positioned opposite to each other. This can also achieve the purpose of reducing mutual interference, but obviously the structure is more complex, the installation operation is more cumbersome, and the cost is high, making it impractical.

[0067] Furthermore, the first air inlet cavity 51 and the second air inlet cavity 52 are distributed along a first horizontal direction. It is understood that the density of air changes with temperature, thus exhibiting a tendency to move vertically. To ensure uniform cooling of the air within the cooling cavity 13, and to prevent the vertical movement of the airflow from affecting the temperature of the air entering the first air inlet cavity 51 and the second air inlet cavity 52, in this embodiment, the first air inlet cavity 51 and the second air inlet cavity 52 are distributed along a first horizontal direction. Correspondingly, the cooling cavity 13 extends along the first horizontal direction.

[0068] Furthermore, the second compartment 12 is located above the first compartment 11; the partition cavity 5 is located between the cooling cavity 13 and the first compartment 11. The distribution of the first compartment 11 and the second compartment 12 in the refrigerator structure 100 can actually be varied, such as a horizontal distribution or a split distribution. However, in practical terms, a vertical distribution of the first compartment 11 and the second compartment 12 better meets the actual needs of most refrigerator structures 100. Based on this, the partition cavity 5 is located between the cooling cavity 13 and the first compartment 11, meaning the cooling cavity 13 is located at the lower part of the refrigerator structure 100, satisfying the mass distribution of the refrigerator structure 100 to lower its center of gravity and improve its placement stability. Correspondingly, the partition cavity 5 is located close to the first compartment 11, meaning the air circulation path of the first refrigeration cycle system 3 is necessarily shorter than the air circulation path of the second refrigeration cycle system 4. This also limits some of the refrigeration functions of the refrigerator structure 100, making it difficult to achieve… Given that the temperature of the second chamber 12 is much lower than that of the first chamber 11, it is understandable that when the temperature of the second chamber 12 needs to be lower than that of the first chamber 11, even if the first fan 33 is turned off and only the second fan 43 drives the gas flow in the cooling chamber 13, thereby driving the airflow to circulate to the second chamber 12 for cooling, the airflow flowing in the cooling chamber 13 will still drive the airflow in the first refrigeration cycle system 3 to cool the first chamber 11. Considering the short air circulation path of the first refrigeration cycle system 3, even if the airflow is small and its cooling loss is small, in this state, the temperature drop rate of the first chamber 11 and the second chamber 12 is small, making it difficult to achieve rapid cooling of the second chamber 12, and thus difficult to achieve a temperature in the second chamber 12 that is much lower than that in the first chamber 11.

[0069] Furthermore, at least one section of the second return air duct 42 is located on the side of the cooling cavity 13 opposite to the isolation cavity, and the second return air duct 42 is connected to the lower end of the cooling cavity 13, and the first return air duct 32 is connected to the lower end of the cooling cavity 13; the positions where the first air inlet cavity 51 and the second air inlet cavity 52 are connected to the cooling cavity 13 are close to the upper end of the cooling cavity 13. Based on the principle that changes in air temperature cause changes in density, the cooling cavity 13 in this embodiment extends horizontally as described above. Furthermore, the relative positions of the air inlet and outlet of the cooling cavity 13 can be varied, including but not limited to horizontally upward relative positions and vertically upward relative positions. In this embodiment, the air inlet of the cooling cavity 13 is located at its lower end, while the air outlet is located at its upper end. This utilizes the low temperature and high density of the airflow within the cooling cavity 13 to increase the time the air remains within the cooling cavity 13, ensuring sufficient heat exchange between the air and the evaporator 2, further reducing the air temperature at the outlet of the cooling cavity 13, thereby improving the cooling efficiency of the refrigerator 1000.

[0070] Furthermore, the second air supply duct 41 and the second return air duct 42 are distributed in the first horizontal direction. Based on the above structure, the second air supply duct 41 and the second return air duct 42 corresponding to the second compartment 12 inevitably pass through the same area in the vertical direction. To ensure their respective duct diameters and avoid occupying too much space in the second horizontal direction, in this embodiment, the second air supply duct 41 and the second return air duct 42 are distributed in the first horizontal direction. It can be understood here that the first horizontal direction described in this embodiment refers to the width direction of the refrigerator structure 100, and the second horizontal direction refers to the depth direction of the refrigerator structure 100, to meet the conventional refrigerator structure 100 setting and conform to the usage characteristics of the refrigerator 1000.

[0071] Please refer to Figures 1 to 6. This application also proposes a refrigerator 1000, wherein the refrigerator 1000 includes the refrigerator structure 100 and a compressor connected to the evaporator 2. The specific structure of the refrigerator structure 100 is as described in the above embodiments. Since the refrigerator 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0072] Specifically, the refrigerator 1000 further includes a control device 200, which is electrically connected to the compressor, the first fan 33, and the second fan 43. To implement the control method of the refrigerator 1000 described above, please refer to Figure 6. The control device 200 includes: a processor 1001, such as a CPU; a communication bus 1002; a user interface 1003; a network interface 1004; and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard. The user interface 1003 may also include standard wired and wireless interfaces. The network interface 1004 may include standard wired and wireless interfaces (such as a Wi-Fi interface). The memory 1005 may be high-speed RAM or non-volatile memory, such as a disk drive. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0073] Those skilled in the art will understand that the structure of the control device 200 shown in FIG6 does not constitute a limitation on the control device 200, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0074] As shown in Figure 6, the memory 1005, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and the control program for the refrigerator 1000.

[0075] In the control device 200 shown in Figure 6, the processor 1001 calls the control program of the refrigerator 1000 stored in the memory 1005 and executes the control method of the refrigerator 1000.

[0076] Please refer to Figures 7 to 11. This application proposes a control method for a refrigerator 1000, wherein the steps of the control method for the refrigerator 1000 include:

[0077] S100: During the operation of the refrigerator 1000, acquire the target temperature and current temperature of the first compartment 11 and the second compartment 12;

[0078] S200: Based on the relationship between the current temperature and the target temperature of the first compartment 11 and the second compartment 12, control the first fan 33 and the second fan 43 to operate respectively, so that the first compartment 11 and the second compartment 12 can reach the corresponding target temperature.

[0079] The specific structural configuration of the refrigerator structure 100 described above can meet the dual-cycle refrigeration requirements of a single cooling chamber 13 corresponding to the first refrigeration cycle system 3 and the second refrigeration cycle system 4. Based on this, the target temperatures in the first compartment 11 and the second compartment 12 can be set to be the same or different. Therefore, when the refrigerator 1000 needs to refrigerate the first compartment 11 and the second compartment 12, the compressor, the first fan 33, and the second fan 43 are turned on. At this time, the compressor exchanges heat with the air in the cooling chamber 13 through the evaporator 2. The first fan 33 and the second fan 43 blow low-temperature gas into the first compartment 11 and the second compartment 12 to cool them down. Based on the refrigerator structure 100 described above, the interference between the first fan 33 and the second fan 43 is small. It is approximately possible to control the temperature in the first compartment 11 and the second compartment 12 by controlling the first fan 33 and the second fan 43 individually, so that the first compartment 11 and the second compartment 12 can reach their set target temperature respectively, thus meeting the zoned temperature control requirements of the first compartment 11 and the second compartment 12.

[0080] Further, step S200 includes:

[0081] S210: When the current temperature of one of the first compartment 11 and the second compartment 12 reaches its corresponding target temperature first, control one of the corresponding first fan 33 and second fan 43 to stop;

[0082] S220: Next, when the current temperature of one of the first compartment 11 and the second compartment 12 reaches its corresponding target temperature, control the other of the corresponding first fan 33 and second fan 43 to stop, and control the compressor to shut down or reduce its frequency.

[0083] After controlling the first fan 33 to cool the first chamber 11 and the second fan 43 to cool the second chamber 12, once one of the first chamber 11 and the second chamber 12 reaches its target temperature, further cooling is unnecessary. At this point, the corresponding fan is shut down. It can be understood that although the interference between the first fan 33 and the second fan 43 is small, it still exists. Therefore, the cold airflow driven by the other continuously operating fan will still circulate within the first chamber 11 or the second chamber 12, which has reached its target temperature, due to the pressure difference, thus maintaining its internal temperature or even continuing to cool it, preventing excessively rapid temperature rise. This state is maintained until the other of the first chamber 11 and the second chamber 12 reaches its target temperature. At this point, the remaining fan is shut down, and both fans are now off. Then, the compressor is shut down, thus completing the cooling of the first chamber 11 and the second chamber 12. It is understandable that, to ensure the internal temperature is maintained after the target temperature is reached, the fan can be controlled to run at a low speed according to the external environment. Similarly, after the first chamber 11 and the second chamber 12 have both reached the target temperature, the fan can also be kept running at a low speed, and the compressor can be kept running at a low frequency. In addition, the low-frequency operation of the compressor can also maintain the low-temperature environment in the cooling chamber 13. On the one hand, this avoids the situation where the air in the poorly insulated cooling chamber 13 heats up to a temperature higher than that in the first chamber 11 and the second chamber 12, and then the first fan 33 and the second fan 43 are started, resulting in hot air being blown in and the temperature of the first chamber 11 and the second chamber 12 being raised instead. On the other hand, maintaining the low temperature of the air in the cooling chamber 13 allows for a rapid response when the refrigerator 1000 restarts cooling, thus improving cooling efficiency.

[0084] Furthermore, step S100 includes:

[0085] S110: During the operation of refrigerator 1000, obtain the cooling mode of refrigerator 1000;

[0086] S120: Obtain the target temperatures of the first compartment 11 and the second compartment 12 corresponding to the pre-stored values ​​in the refrigeration mode of the refrigerator 1000.

[0087] Because the refrigerator structure 100 satisfies the single-system dual-cycle function, when the refrigerator 1000 is turned on, it is necessary to obtain the cooling mode of the refrigerator 1000 to obtain the target temperature values ​​of the first compartment 11 and the second compartment 12. Correspondingly, the cooling modes of the refrigerator 1000 include an upper-refrigeration-lower-freezing mode, a full-refrigeration mode, and a full-freezing mode. In the upper-refrigeration-lower-freezing mode, the target temperature value of the second compartment 12 is lower than the target temperature value of the first compartment 11. In the full-refrigeration mode and the full-freezing mode, the target temperature values ​​of the first compartment 11 and the second compartment 12 are equivalent, and the target temperature value corresponding to the full-refrigeration mode is higher than the target temperature value corresponding to the full-freezing mode. It is important to note that the refrigerator 1000 does not have a top-freezing, bottom-refrigeration mode. This means it does not have a target temperature in the second compartment 12 that is lower than the target temperature in the first compartment 11. The reason for this, as described in detail above, is that due to the vertical arrangement of the first and second compartments 11 and the proximity of the cooling chamber 13 to the first compartment 11, cooling the second compartment 12 to reach a lower target temperature would simultaneously cool the first compartment 11. Therefore, it is impossible to simultaneously cool the second compartment 12 to its target temperature while maintaining the required higher target temperature in the first compartment 11. Conversely, in the top-refrigeration, bottom-freezing mode, the refrigerator 1000's specific structural design allows for rapid cooling of the first compartment 11, thereby reducing the temperature change in the second compartment 12 during the period between the shutdown of the second fan 43 and the shutdown of the first fan 33. Furthermore, in the full freezing mode and the full refrigeration mode, based on the structure of the refrigerator 1000, that is, the length of the circulating air duct of the first refrigeration cycle system 3 is less than the length of the circulating air duct of the second refrigeration cycle system 4, it can be understood that when the first compartment 11 and the second compartment 12 are refrigerated simultaneously, the first compartment 11 will inevitably reach the target temperature first. At this time, after the second compartment 12 reaches the target temperature, the second fan 43 is turned off, and the compressor is turned off or the compressor frequency is reduced, so as to complete the cooling requirement.

[0088] Furthermore, step S120 includes:

[0089] S121: Obtain the cooling level of the refrigerator in cooling mode 1000;

[0090] S122: Obtain the target temperature of the first compartment 11 and the second compartment 12 corresponding to the cooling level.

[0091] To meet different temperature requirements, this application also presets multiple cooling levels, i.e. multiple temperature levels, based on the cooling mode of the refrigerator 1000. Therefore, in addition to obtaining the cooling mode of the refrigerator 1000, it is also necessary to obtain the cooling level under the cooling mode in order to obtain the preset target temperature under the corresponding cooling level.

[0092] In addition, step S120 further includes:

[0093] S123: Obtain the target temperatures of the first compartment 11 and the second compartment 12 corresponding to the upper refrigeration and lower freezing mode;

[0094] Correspondingly, step S200 further includes:

[0095] S230: Control the second fan 43 to work intermittently at preset start and stop times.

[0096] It is understandable that, in order to meet different cooling function requirements, the operating state of the first fan 33 and the second fan 43 is not limited to continuous operation; they can also be intermittently operated, alternately operated, etc. For example, as proposed in this embodiment, in the upper refrigeration and lower freezing mode, the operating state of the second fan 43 is set to intermittent operation. Specifically, it can be operated for one minute and then stopped for two minutes, and so on. That is, in the above steps, the specific operating state of the first fan 33 and the second fan 43 is not limited, as long as it can meet the cooling function. The specific settings are based on actual needs.

[0097] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A refrigerator structure, wherein, The refrigerator structure includes a main body, the inner cavity of which is divided into a first compartment and a second compartment, a cooling chamber is formed within the cavity wall of the main body, and an evaporator is disposed within the cooling chamber. The refrigerator structure also includes: A first refrigeration cycle system includes a first air supply duct and a first air return duct, both of which connect the first compartment to the cooling chamber. A first fan is installed in the first air supply duct. The second refrigeration cycle system includes a second air supply duct and a second air return duct. Both the second air supply duct and the second air return duct are connected to the second compartment and the cooling chamber. A second fan is installed in the second air supply duct.

2. The refrigerator structure of claim 1, wherein, A partition cavity is formed between the cooling cavity and the inner cavity of the main body, and the partition cavity is provided with a first air inlet cavity and a second air inlet cavity that are respectively connected to the cooling cavity; The first air supply channel includes the first air inlet cavity, and the first fan is disposed in the first air inlet cavity; The second air supply channel includes the second air inlet cavity, and the second fan is disposed in the second air inlet cavity.

3. The refrigerator structure of claim 2, wherein, A partition is provided inside the partition cavity to separate the first air inlet cavity and the second air inlet cavity.

4. The refrigerator structure of claim 2, wherein, The first air inlet cavity and the second air inlet cavity are distributed along the first horizontal direction.

5. The refrigerator structure according to any one of claims 2 to 4, wherein, The second room is located above the first room; The spacer cavity is located between the cooling cavity and the first chamber.

6. The refrigerator structure of claim 4, wherein, At least one section of the second return air duct is located on the side of the cooling cavity opposite to the isolation cavity, and the second return air duct is connected to the lower end of the cooling cavity, and the first return air duct is connected to the lower end of the cooling cavity; The first air inlet cavity and the second air inlet cavity are connected to the cooling cavity at a position close to the upper end of the cooling cavity.

7. The refrigerator structure of claim 6, wherein, The second air supply duct and the second return air duct are distributed in the first horizontal direction.

8. A control method of a refrigerator, wherein, The refrigerator includes the refrigerator structure as described in any one of claims 1 to 7, and a compressor connected to the evaporator, and the steps of the control method for the refrigerator include: During the refrigerator's operation, the target temperature and current temperature of the first and second compartments are obtained. Based on the relationship between the current temperature and the target temperature of the first and second chambers, the first and second fans are controlled to operate so that the first and second chambers can reach the corresponding target temperatures.

9. The control method of a refrigerator according to claim 8, wherein, The steps of controlling the operation of the first fan and the second fan respectively based on the relationship between the current temperature and the target temperature of the first and second chambers include: When the current temperature of one of the first and second chambers reaches its corresponding target temperature first, control one of the corresponding first and second fans to stop. Next, when the current temperature of one of the first and second chambers reaches its corresponding target temperature, the corresponding first and second fans are controlled to stop, and the compressor is controlled to shut down or operate at a reduced frequency. 10.The control method of a refrigerator according to claim 8, wherein, The steps for obtaining the target temperature and current temperature of the first and second compartments during the refrigerator's operation include: During the refrigerator's operation, the refrigerator's cooling mode is obtained. Obtain the target temperatures of the first and second compartments pre-stored in the refrigerator's cooling mode.

11. The control method of a refrigerator according to claim 10, wherein, The steps for obtaining the target temperatures of the first and second compartments, corresponding to the pre-stored values, in the refrigerator's cooling mode include: Get the cooling level of the refrigerator in cooling mode; Obtain the target temperature of the first and second rooms corresponding to the cooling level.

12. The control method of a refrigerator according to claim 10, wherein, The second room is located above the first room; The refrigerator's cooling modes include a top-refrigeration and bottom-freezing mode, a full-refrigeration mode, and a full-freezing mode. In the top-refrigeration and bottom-freezing mode, the target temperature value of the second compartment is lower than the target temperature value of the first compartment. In the full refrigeration mode and the full freezing mode, the target temperature values ​​of the first compartment and the second compartment are equivalent, and the target temperature value corresponding to the full refrigeration mode is higher than the target temperature value corresponding to the full freezing mode.

13. The control method of a refrigerator according to claim 12, wherein, The step of obtaining the target temperatures of the first and second compartments corresponding to the pre-stored values ​​in the refrigerator's cooling mode includes: Obtain the pre-stored target temperatures of the first and second compartments corresponding to the upper refrigeration and lower freezing modes; Correspondingly, the step of controlling the first fan and the second fan to operate according to the relationship between the current temperature and the target temperature of the first and second rooms, so that the first and second rooms can reach the corresponding target temperatures, includes: Control the second fan to operate intermittently at preset start and stop times.

14. A refrigerator, wherein, The refrigerator includes: The refrigerator structure is the refrigerator structure as described in any one of claims 1 to 7; The compressor is connected to the evaporator; and, The control device is electrically connected to the compressor, the first fan, and the second fan.

15. The refrigerator of claim 14, wherein, The control device includes a memory, a processor, and a refrigerator control program stored in the memory and executable on the processor, the refrigerator control program being configured to implement the steps of the refrigerator control method as described in any one of claims 8 to 13.

Images