Refrigerator and control method of refrigerator

Abstract

The application provides a refrigerator and a control method of the refrigerator, and belongs to the technical field of the refrigerator. The refrigerator comprises: a refrigeration chamber comprising a refrigeration evaporator; a freezing chamber comprising a first freezing cavity, a second freezing cavity and a freezing evaporator; the first freezing cavity and the refrigeration evaporator are provided with a first air exchange air duct, and the first freezing cavity and the freezing evaporator are provided with a second air exchange channel; the refrigeration evaporator inputs cold air to the first freezing cavity through the first air exchange air duct, so that the temperature of the first freezing cavity reaches a first temperature range; and the freezing evaporator inputs cold air to the first freezing cavity through the second air exchange channel, so that the temperature of the first freezing cavity reaches a second temperature range. The application effectively improves the overall volume rate of the refrigerator while realizing multi-temperature zone control in the freezing chamber of the refrigerator, reduces the manufacturing cost of the refrigerator, and has high flexibility of multi-temperature control.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and more specifically, to a refrigerator and a refrigerator control method. Background Technology

[0002] In recent years, consumers have demanded refrigerators with diverse food storage functions, especially those with multiple temperature zones and temperature control, such as a zone that can both freeze and defrost.

[0003] Currently, some related technologies involve setting up dedicated multi-temperature compartments in the refrigerator, and simultaneously installing dedicated evaporators in these compartments for temperature regulation. However, this results in a lower overall volume ratio in the refrigerator, increases manufacturing costs, and makes multi-temperature control less flexible.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a refrigerator and a refrigerator temperature control method, which can effectively improve the overall volume ratio of the refrigerator while realizing multi-temperature zone control in the freezer compartment, and reduce the manufacturing cost of the refrigerator, and has high flexibility in multi-temperature control.

[0006] Some embodiments of this application propose a refrigerator, including:

[0007] The refrigerator compartment includes the refrigerator evaporator;

[0008] The freezer compartment includes a first freezer chamber, a second freezer chamber, and a freezer evaporator;

[0009] The first freezing chamber and the refrigeration evaporator are connected by a first air exchange duct, and the first freezing chamber and the refrigeration evaporator are connected by a second air exchange channel;

[0010] The refrigeration evaporator inputs cold air into the first freezing chamber through the first air exchange duct to bring the temperature of the first freezing chamber to a first temperature range; the freezing evaporator inputs cold air into the first freezing chamber through the second air exchange duct to bring the temperature of the first freezing chamber to a second temperature range.

[0011] In one embodiment, the first air exchange duct includes a first air supply duct and a first air return duct. The refrigeration evaporator sends cold air into the first freezing chamber through the first air supply duct, and the gas in the first freezing chamber flows back to the refrigeration evaporator through the first air return duct.

[0012] In one embodiment, the shell of the first freezing chamber is provided with a first air outlet and a first air return outlet, and the shell of the refrigerator chamber is provided with a first air supply outlet and a second air return outlet; the first air supply channel connects the first air supply outlet and the first air outlet, and the first air return channel connects the first air return outlet and the second air return outlet.

[0013] In one embodiment, the second air exchange channel includes a second air supply channel and a second air return channel. The refrigeration evaporator sends cold air into the first refrigeration chamber through the second air supply channel, and the gas in the first refrigeration chamber flows back to the refrigeration evaporator through the second air return channel.

[0014] In one embodiment, it further includes an evaporator compartment, with a first end extending into the first freezing chamber and a second end extending into the second freezing chamber relative to the first end; the freezing evaporator is disposed within the second end;

[0015] A second air outlet is provided on the first end, and the second air supply channel connects the freeze evaporator and the second air outlet;

[0016] The second freezing chamber has a third return air vent on its shell, and the second return air duct connects the third return air vent to the first freezing chamber.

[0017] In one embodiment, both the first air exchange duct and the second air exchange channel are equipped with dampers, and the dampers control the asynchronous operation of the first air exchange duct and the second air exchange channel.

[0018] In one embodiment, the first return air duct includes a first sub-duct and a main duct; the second return air duct includes a second sub-duct and the main duct; the first port of the main duct is connected to the first return air outlet, the second port of the main duct is connected to the first port of the first sub-duct and the first port of the second sub-duct, the second port of the first sub-duct is connected to the second return air outlet, and the second port of the second sub-duct is connected to the third return air outlet; a damper is disposed at the connection between the second port of the main duct and the first and second sub-ducts.

[0019] In one embodiment, a third air outlet is provided on the second end, a third air supply channel connects the refrigeration evaporator and the third air outlet, and the third air supply channel is connected to the second air supply channel; a damper is provided at the second air outlet.

[0020] In one embodiment, the first freezing chamber is provided with a temperature sensor, which is used to monitor the temperature inside the first freezing chamber.

[0021] In one embodiment, a controller is further included to control the operation of the damper according to the target temperature of the first freezing chamber, so that after the first air exchange duct or the second air exchange channel is opened, the controller controls the refrigeration evaporator or the freezing evaporator to input cold air into the first freezing chamber to adjust the temperature of the first freezing chamber to reach the target temperature.

[0022] Some embodiments of this application provide a method for controlling the temperature of a refrigerator, including:

[0023] Obtain the target temperature of the first freezing chamber;

[0024] Determine the temperature range in which the target temperature is located, the temperature range including a first temperature range and a second temperature range;

[0025] If the temperature range is the first temperature range, control the damper to open the first air exchange duct so that the refrigeration evaporator can input cold air into the first freezing chamber through the first air exchange duct so that the temperature of the first freezing chamber reaches the target set temperature.

[0026] If the temperature range is the second temperature range, control the damper to open the second air exchange duct so that the refrigeration evaporator inputs cold air into the first freezing chamber through the second air exchange duct so that the temperature of the first freezing chamber reaches the target temperature.

[0027] In the embodiments of this application, a first freezing chamber and a second freezing chamber are provided in the freezer compartment of the refrigerator. The first freezing chamber has a first air exchange duct between itself and the refrigeration evaporator, and a second air exchange channel between itself and the freezing evaporator. The refrigeration evaporator can then input cold air into the first freezing chamber through the first air exchange duct. Since the temperature of the refrigeration evaporator is relatively high, the temperature of the first freezing chamber can reach a first temperature range. The freezing evaporator inputs cold air into the first freezing chamber through the second air exchange channel. Since the temperature of the refrigeration evaporator is relatively low, the temperature of the first freezing chamber can reach a second temperature range.

[0028] By utilizing both a refrigeration evaporator and a freezing evaporator, a first freezing chamber with multiple temperature zones is created within the freezer compartment. This first freezing chamber provides freezing functionality within a second temperature range, while simultaneously enabling defrosting and thawing within the first temperature range. Furthermore, the presence of both a first and a second freezing chamber allows for continuous freezing without being affected by the higher temperature-controlled cold air in the first chamber. Consequently, reliable multi-temperature zone control can be achieved within the freezer compartment without requiring additional evaporators or significant modifications to the refrigerator. This effectively increases the overall volumetric efficiency of the refrigerator, reduces manufacturing costs, and offers high flexibility by utilizing existing refrigeration and freezing evaporators for multi-temperature control.

[0029] Other features and advantages of this application will become apparent from the following detailed description taken in conjunction with the accompanying drawings, or may be learned in part by practice of this application.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a refrigerator according to one embodiment of this application.

[0032] Figure 2 yes Figure 1 The image shows a partial view of the refrigerator with the freezer door open.

[0033] Figure 3 yes Figure 1 The diagram shows the structure of the refrigerator compartment and freezer compartment.

[0034] Figure 4 yes Figure 1 The rear view of the refrigerator's refrigerator compartment and freezer compartment structure is shown.

[0035] Figure 5 This is a schematic diagram of the evaporation chamber according to one embodiment of this application.

[0036] Figure 6 This is a schematic diagram of the front cover structure of the evaporation chamber according to one embodiment of this application.

[0037] Figure 7 This is a schematic diagram of the rear cover structure of the evaporation chamber according to one embodiment of this application.

[0038] Figure 8 This is a schematic diagram of the structure of a refrigerator according to an embodiment of this application.

[0039] Figure 9 This is a flowchart of an exemplary temperature control method in a refrigerator according to this application.

[0040] Explanation of icon numbers:

[0041] 00. Refrigerator;

[0042] 1. Refrigeration compartment; 11. Refrigeration evaporator; 12. First air supply outlet; 13. Second return air outlet;

[0043] 2. Freezer compartment; 21. First freezing chamber; 211. First air outlet; 212. First return air outlet; 22. Second freezing chamber; 221. Third return air outlet; 23. Freezer evaporator; 24. First air exchange duct; 241. First air supply duct; 242. First return air duct; 2421. First sub-duct; 2422. Main duct; 25. Second air exchange duct; 251. Second air supply duct; 252. Second return air duct; 2521. Second sub-duct; 26. Evaporator compartment; 261. First end; 262. Second end; 263. Second air outlet; 264. Front cover; 265. Rear cover; 266. Air supply vent; 267. Third air outlet; 268. Third air supply duct; 27. Air damper;

[0044] 3. Controller. Detailed Implementation

[0045] 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 some embodiments of this application, and not all 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.

[0046] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0050] Figure 1 This is a schematic diagram of the overall structure of a refrigerator according to an embodiment of this application; Figure 2 yes Figure 1 The image shows a partial view of the refrigerator with the freezer door open. Figure 3 yes Figure 1 The diagram shown illustrates the structure of the refrigerator's cold storage compartment and freezer compartment. Figure 4 yes Figure 1 The rear view of the refrigerator's refrigerator compartment and freezer compartment structure is shown. Figure 5 This is a schematic diagram of the evaporation chamber according to one embodiment of this application; Figure 6 This is a schematic diagram of the front cover structure of the evaporation chamber according to an embodiment of this application; Figure 7 This is a schematic diagram of the rear cover structure of the evaporation chamber according to one embodiment of this application.

[0051] See Figures 1 to 7 As shown, the refrigerator 00 includes a refrigerator compartment 1 and a freezer compartment 2. The refrigerator compartment 1 is equipped with a refrigerator evaporator 11. The freezer compartment 2 is composed of a first freezer cavity 21, a second freezer cavity 22 and a freezer evaporator 23. The first freezer cavity 21 and the second freezer cavity 22 share the freezer evaporator 23.

[0052] In this example, the first freezing chamber 21 and the second freezing chamber 22 are obtained by dividing the freezer compartment 2 into upper and lower parts using an intermediate plate. The first freezing chamber 21 is located above the second freezing chamber 2 and is close to the refrigerator compartment 1. It can be understood that the first freezing chamber 21 and the second freezing chamber 22 can also be two separate compartments, for example, the first freezing chamber 21 and the second freezing chamber 22 are separated by a certain distance.

[0053] The first freezing chamber 21 and the refrigeration evaporator 11 are connected by a first air exchange duct 24, and the first freezing chamber 21 and the freezing evaporator 23 are connected by a second air exchange channel 25. The refrigeration evaporator 11 can input cold air into the first freezing chamber 21 through the first air exchange duct 24, so that the temperature of the first freezing chamber 21 reaches a first temperature range. The freezing evaporator 23 can input cold air into the first freezing chamber 21 through the second air exchange channel 25, so that the temperature of the first freezing chamber 21 reaches a second temperature range.

[0054] The first freezing chamber 21 with multiple temperature ranges is realized in the freezing chamber 2 by using the freezing evaporator 23 of the freezing chamber 2. That is, the freezing function under the second temperature range is realized in the first freezing chamber 21, while the defrosting and thawing functions under the first temperature range are realized at the same time. Secondly, the first freezing chamber 21 and the second freezing chamber 22 are set up so that the continuous freezing function can be realized through the second freezing chamber 22 without being affected by the cold air controlled by the higher temperature in the first freezing chamber 21.

[0055] In the real-time mode of this example, the first temperature range is -3℃ to -12℃, and the second temperature range is -12℃ to -25℃, thereby achieving multiple temperature ranges from -3℃ to -25℃ in the first freezing chamber 21 (which may include four temperature ranges: above -6℃, -6℃ to -12℃, -12℃ to -18℃, and below -18℃); the second freezing chamber 22 can achieve a continuous freezing temperature from -15℃ to -25℃.

[0056] Furthermore, without the need to install additional evaporators or make excessive modifications to the refrigerator 00, a reliable multi-temperature zone control can be achieved within the freezer compartment 23 of the refrigerator 22, effectively increasing the overall volume ratio of the refrigerator 00 and reducing the manufacturing cost of the refrigerator. Moreover, the existing refrigeration evaporator 11 and freezer evaporator 23 are used for multi-temperature control, which offers high flexibility.

[0057] In the real-time configuration of this example, the first ventilation duct 24 includes a first supply air duct 241 and a first return air duct 242. The refrigeration evaporator 11 delivers cold air into the first freezing chamber 21 through the first supply air duct 241. Then, the gas in the first freezing chamber 241 can flow back to the refrigeration evaporator 11 through the first return air duct 242, thus completing one air circulation. Furthermore, the first supply air duct 241, the first return air duct 242, and the internal space of the first freezing chamber 241 form a closed-loop first ventilation duct 24.

[0058] Specifically, the shell of the first freezing chamber 21 is provided with a first air outlet 211 and a first air return outlet 212, and the shell of the refrigerator chamber 1 is provided with a first air supply outlet 12 and a second air return outlet 13; the first air supply channel 241 connects the first air supply outlet 12 and the first air outlet 211, and the first air return channel 242 connects the first air return outlet 212 and the second air return outlet 13.

[0059] Since the refrigeration evaporator 11 is located in the refrigeration chamber 1, and the shell of the refrigeration chamber 1 has a first air supply port 12 and a second air return port 13, as long as a fan (not shown in the figure) is installed near the first air supply port 12, the cold air prepared by the refrigeration evaporator 11 can be conveniently sent into the first freezing chamber 21 through the first air supply channel 241 and returned to the refrigeration chamber 1 through the first air return channel 242.

[0060] In this embodiment, the second air exchange duct 25 includes a second supply air duct 251 and a second return air duct 252. The refrigeration evaporator 23 delivers cold air into the first refrigeration chamber 21 through the second supply air duct 251, and the gas in the first refrigeration chamber 21 flows back to the refrigeration evaporator 23 through the second return air duct 252, thereby completing the air circulation. The second air exchange duct 25, consisting of the second supply air duct 251, the second return air duct 252, and the internal space of the first refrigeration chamber 241, forms a closed loop.

[0061] Specifically, the freezer compartment 2 is also provided with an evaporator compartment 26, the first end 261 of which extends into the first freezer chamber 21, and the second end 262 of which extends into the second freezer chamber 22 relative to the first end 261; the freezer evaporator 23 is disposed in the second end 262; a second air outlet 263 is provided on the first end 261, and a second air supply channel 251 connects the freezer evaporator 23 and the second air outlet 263; a third return air outlet 221 is provided on the shell of the second freezer chamber 22, and a second return air channel 252 connects the third return air outlet 221 and the first freezer chamber 21.

[0062] Furthermore, the second air supply channel 251 is located inside the evaporator compartment 26, between the front cover 264 and the rear cover 265 of the evaporator compartment 26. The second air outlet 263 is a through hole on the front cover 264, which faces the interior of the freezer compartment 2. Thus, by installing a fan in the second air supply channel 251, the cold air prepared by the freezer evaporator 23 can be sent into the first freezer compartment 21 through the second air supply channel 251 and the second air outlet 263.

[0063] Meanwhile, a third air outlet 267 is opened on the front cover 264 of the second end 262, so that cold air can be sent into the second freezing chamber 22 by the third air supply channel 268 (which can be set in the evaporator compartment 26, between the front cover 264 and the rear cover 265 of the evaporator compartment 26). At this time, the third air supply channel 268 connects the freezing evaporator 23 and the third air outlet 267. In this example, the third air supply channel 268 and the second air supply channel 251 are connected and share the same fan to supply air, further increasing the volume ratio of the freezer compartment. At this time, an air damper (which can be an electric shielding device) is set at the third air outlet 267. When the refrigeration evaporator 11 supplies air to the first freezer chamber 21, the second freezer chamber 22 can also be cooled by the refrigeration evaporator 23. At this time, by closing the third air outlet 267 through the air damper, the cold air prepared by the refrigeration evaporator 23 will not enter the first freezer chamber 21 and affect the air supply effect of the refrigeration evaporator 11 (that is, the first air exchange channel 24 and the second air exchange channel 25 are asynchronously connected by controlling the air damper), and only the second freezer chamber 22 is cooled.

[0064] It is understandable that in another example, the third air supply duct 268 and the second air supply duct 251 are connected and share the same fan for air supply. However, a damper is provided between the fan and the second air outlet 263. This damper can close the second air supply duct 251 without closing the third air supply duct 268. This also allows the first freezing chamber 21 to be supplied with air by the refrigeration evaporator 11 when the second freezing chamber 22 is cooling, without affecting each other. Multiple second air outlets 263 can be managed simultaneously through a single damper (e.g., ...). Figure 6 The diagram shows two closed sections. In another example, the third air supply channel 268 and the second air supply channel 251 may not be connected, and each of the two air channels is equipped with a fan to transport the cold air prepared by the refrigeration evaporator 23.

[0065] Furthermore, the first side of the shell of the freezer compartment 2 is an opening that mates with the freezer door; the first freezer chamber 21 and the second freezer chamber 22 are obtained by dividing the freezer compartment 2 into upper and lower parts by an intermediate plate, with the first freezer chamber 21 located above the second freezer chamber 22; then, the first end of the intermediate plate faces the second side of the freezer compartment shell away from the opening, and the second end of the intermediate plate faces the opening and is aligned with the opening, so that when the freezer door is closed, the first freezer chamber 21 can be located in the second freezer chamber 22 to form a separate sealed space; there is a certain distance between the first end of the intermediate plate and the second side of the freezer compartment shell away from the opening to form an installation through hole, and the evaporator compartment 26 is disposed in the shell of the freezer compartment 2, and the first end 261 of the evaporator compartment 26 extends into the first freezer chamber 21 and the second end 262 of the evaporator compartment 26 extends into the second freezer chamber 22.

[0066] Furthermore, an air supply hole 266 (i.e., a through hole penetrating the front cover 264 and the rear cover 265) is provided on the first end 261, and the first air outlet 211 is connected to the air supply hole 266. Thus, the cold air generated by the refrigeration evaporator 11 is sent into the first freezing chamber 21 through the first air outlet 211 and the air supply hole 266. This further ensures the overall compact arrangement of the refrigerator compartment 2 and improves the volume ratio.

[0067] Furthermore, both the first air exchange duct 24 and the second air exchange channel 25 are equipped with dampers, which can be used to control the asynchronous operation of the first air exchange duct 24 and the second air exchange channel 25. That is, when the first air exchange duct 24 is open, the second air exchange channel 25 is closed, and when the second air exchange channel 25 is open, the first air exchange duct 24 is closed. In this way, air will not cross-contaminate during air exchange in the first freezing chamber 21, freezing gas will not enter the refrigerator compartment 1, and refrigeration gas will not enter the second freezing chamber 22. The dampers can be set at each air outlet, and when a channel is not in use, the damper can be controlled to completely close the unused channel to prevent air leakage between chambers and cross-contamination between chambers.

[0068] In one embodiment of this example, the first return air duct 242 includes a first sub-duct 2421 and a main duct 2422; the second return air duct 252 includes a second sub-duct 2521 and the main duct 2422; the first port of the main duct 2422 is connected to the first return air outlet 212, the second port of the main duct 2422 is connected to the first port of the first sub-duct 2421 and the first port of the second sub-duct 2521, the second port of the first sub-duct 2421 is connected to the second return air outlet 13, and the second port of the second sub-duct 2521 is connected to the third return air outlet 221; a damper 27 is disposed at the connection between the second port of the main duct 2422 and the first sub-duct 2421 and the second sub-duct 2521, so that the first return air duct 242 and the second return air duct 252 can be asynchronously opened (i.e., not opened at the same time) through the damper 27 at the connection.

[0069] It is understandable that in other examples, the first return air duct 242 and the second return air duct 252 do not overlap and are two separate ducts, each with an air damper. In this case, when the second return air duct 252 connects the third return air outlet 221 and the first freezing chamber 21, the first freezing chamber 21 can have other air outlets, and the second return air duct 252 can connect the third return air outlet 221 and those other air outlets.

[0070] Furthermore, a temperature sensor is installed inside the first freezing chamber, which can monitor the temperature inside the first freezing chamber in real time.

[0071] Furthermore, the refrigerator 00 also includes a controller 3, which controls the operation of the damper according to the target temperature of the first freezing chamber, so that after the first air exchange duct or the second air exchange channel is opened, it controls the refrigerator evaporator or the freezer evaporator to input cold air into the first freezing chamber to adjust the temperature of the first freezing chamber to reach the target temperature.

[0072] It should be noted that the refrigerator also includes the cabinet, and the aforementioned structures are all located inside the refrigerator cabinet. Furthermore, all the channels connecting the vents and the evaporator described in this application specifically refer to the vents being connected to the evaporator via channels to produce cold air, rather than the vents being directly connected to the evaporator via channels.

[0073] Continue reading Figure 8 As shown, controller 3 may include the following parts, it should be noted that... Figure 8 The refrigerator 00 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0074] like Figure 8 As shown, controller 3 (e.g., a refrigerator display panel) includes:

[0075] The central processing unit (CPU) 301 can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 302 or programs loaded into random access memory (RAM) 303 from storage section 308. RAM 303 also stores various programs and data required for system operation. The CPU 301, ROM 302, and RAM 303 are interconnected via bus 1504. Input / output (I / O) interface 305 is also connected to bus 304.

[0076] The following components are connected to I / O interface 305: an input section 306 including a keyboard, mouse, etc.; an output section 307 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN (local area network) card, modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to I / O interface 305 as needed. A removable medium 311, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 310 as needed so that computer programs read from it can be installed into storage section 308 as needed.

[0077] Specifically, according to embodiments of this application, the processes described below with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the control methods shown in the flowcharts below. In such embodiments, the computer program can be downloaded and installed from a network via communication section 309, and / or installed from removable medium 311. When the computer program is executed by central processing unit (CPU) 301, it performs various functions defined in the system of this application.

[0078] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0079] In another aspect, this application also provides a computer-readable medium, which may be included in the refrigerator 00 described in the above embodiments; or it may exist independently and not assembled into the refrigerator 00. The computer-readable medium carries one or more programs, which, when executed by a controller 3, cause the controller 3 to implement the temperature control method of the embodiments of this application.

[0080] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0081] The controller 3 can be configured to perform the temperature control method shown in the following embodiments.

[0082] Figure 9 This is a flowchart illustrating a temperature control method according to an exemplary embodiment of this application.

[0083] like Figure 9 As shown, based on the refrigerator of the foregoing embodiment, the temperature control method may include steps S410 to S440.

[0084] Step S410: Obtain the target temperature of the first freezing chamber;

[0085] Step S420: Determine the temperature range in which the target temperature is located, the temperature range including a first temperature range and a second temperature range;

[0086] Step S430: If the temperature range is the first temperature range, control the damper to open the first air exchange duct so that the refrigeration evaporator inputs cold air into the first freezing chamber through the first air exchange duct so that the temperature of the first freezing chamber reaches the target set temperature.

[0087] Step S440: If the temperature range is the second temperature range, control the damper to open the second air exchange duct so that the refrigeration evaporator inputs cold air into the first freezing chamber through the second air exchange duct so that the temperature of the first freezing chamber reaches the target temperature.

[0088] Through steps S410 to S440, based on the temperature range of the target temperature, the air exchange duct that meets the temperature range of the target temperature is opened by controlling the damper, and the cold air from the corresponding evaporator is controlled to be sent into the first freezing chamber through the air exchange duct, so that multi-temperature control can be flexibly and reliably achieved in the first freezing chamber.

[0089] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0090] It should be understood that this application is not limited to the embodiments described above and shown in the accompanying drawings, but various modifications and changes can be made without departing from its scope.

Claims

1. A refrigerator, characterized in that, include: The refrigerator compartment includes the refrigerator evaporator; The freezer compartment includes a first freezer chamber, a second freezer chamber, and a freezer evaporator. The first freezer chamber and the second freezer chamber are divided into upper and lower parts by an intermediate plate. The first freezer chamber is located above the second freezer chamber and is close to the refrigerator compartment. The freezer compartment is also provided with an evaporator compartment. The first end of the evaporator compartment extends into the first freezer compartment, and the second end of the evaporator compartment relative to the first end extends into the second freezer compartment. The freezer evaporator is disposed in the second end. The first freezing chamber and the refrigeration evaporator are connected by a first air exchange duct, and the first freezing chamber and the refrigeration evaporator are connected by a second air exchange channel; The refrigeration evaporator inputs cold air into the first freezing chamber through the first air exchange duct to bring the temperature of the first freezing chamber to a first temperature range; the freezing evaporator inputs cold air into the first freezing chamber through the second air exchange channel to bring the temperature of the first freezing chamber to a second temperature range. The first air exchange duct includes a first air supply duct and a first air return duct. The refrigeration evaporator sends cold air into the first freezing chamber through the first air supply duct, and the gas in the first freezing chamber flows back to the refrigeration evaporator through the first air return duct. The second air exchange channel includes a second air supply channel and a second air return channel. The refrigeration evaporator sends cold air into the first refrigeration chamber through the second air supply channel, and the gas in the first refrigeration chamber flows back to the refrigeration evaporator through the second air return channel. The first freezing chamber has a first return air vent on its shell, the refrigerator chamber has a second return air vent on its shell, the first return air duct connects the first return air vent and the second return air vent, the second freezing chamber has a third return air vent on its shell, and the second return air duct connects the third return air vent and the first freezing chamber. The first return air duct includes a first sub-duct and a main duct. The second return air duct includes a second sub-duct and the main duct. The first port of the main duct is connected to the first return air outlet. The second port of the main duct is connected to the first port of the first sub-duct and the first port of the second sub-duct. The second port of the first sub-duct is connected to the second return air outlet. The second port of the second sub-duct is connected to the third return air outlet. A damper is provided at the connection between the second port of the main duct and the first and second sub-ducts.

2. The refrigerator as described in claim 1, characterized in that, The first freezing chamber is provided with a first air outlet on its shell, and the refrigerator chamber is provided with a first air supply outlet on its shell; the first air supply channel connects the first air supply outlet and the first air outlet.

3. The refrigerator as described in claim 1, characterized in that, A second air outlet is provided at the first end of the evaporator compartment, and the second air supply channel connects the refrigeration evaporator and the second air outlet.

4. The refrigerator as described in any one of claims 1-3, characterized in that, Both the first air exchange duct and the second air exchange channel are equipped with dampers, which control the asynchronous operation of the first air exchange duct and the second air exchange channel.

5. The refrigerator as described in claim 4, characterized in that, A third air outlet is provided at the second end of the evaporator compartment, and a third air supply channel connects the refrigeration evaporator and the third air outlet. The third air supply channel is also connected to the second air supply channel. A damper is provided at the second air outlet.

6. The refrigerator as described in any one of claims 1-3, characterized in that, A temperature sensor is installed inside the first freezing chamber, and the sensor is used to monitor the temperature inside the first freezing chamber.

7. A method for controlling a refrigerator, used to control the refrigerator according to any one of claims 1-6, characterized in that, The method includes: Obtain the target temperature of the first freezing chamber; Determine the temperature range in which the target temperature is located, the temperature range including a first temperature range and a second temperature range; If the temperature range is the first temperature range, control the damper to open the first air exchange duct so that the refrigeration evaporator can input cold air into the first freezing chamber through the first air exchange duct so that the temperature of the first freezing chamber reaches the target set temperature. If the temperature range is the second temperature range, control the damper to open the second air exchange duct so that the refrigeration evaporator inputs cold air into the first freezing chamber through the second air exchange duct so that the temperature of the first freezing chamber reaches the target temperature.

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