Refrigerator with multiple temperature zones

Abstract

The invention relates to a multi-temperature-zone refrigerator, and relates to the technical field of refrigerators. The problems that the temperature area space of the refrigerator is small, and the temperature adjusting range of the temperature changing chamber is small are solved. The multi-temperature-zone refrigerator comprises a refrigerating chamber, a freezing chamber, a soft freezing chamber, a variable-temperature chamber, a refrigerating evaporator, a freezing evaporator, a variable-temperature evaporator, a condenser and a compressor. And the refrigeration evaporator, the freezing evaporator and the variable-temperature evaporator are connected with the condenser and the compressor to form a refrigeration loop. The refrigerating evaporator is used for cooling the refrigerating chamber, the freezing evaporator is used for cooling the freezing chamber, the refrigerating evaporator or the freezing evaporator is used for cooling the soft freezing chamber, and the variable-temperature evaporator is used for cooling the variable-temperature chamber. The multi-temperature-zone refrigerator is provided with four temperature zones so as to meet the storage requirements of users for different temperature spaces, the temperature intervals of the variable temperature chamber can be independently regulated and controlled, and the multi-temperature-zone refrigerator has a large temperature regulation range.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a multi-temperature zone refrigerator. Background Art

[0002] Refrigerators are common household appliances. Compared with refrigerators that only have freezer and refrigerator compartments, refrigerators with more temperature zone functions can meet specific low-temperature storage requirements and are becoming increasingly popular among users.

[0003] Currently, since refrigerators with a variable temperature chamber share an evaporator with a freezer or refrigerator during the cooling process, the temperature adjustable range of the variable temperature chamber is small and cannot meet user needs. Summary of the Invention

[0004] The present application provides a multi-temperature zone refrigerator to solve the problem that the refrigerator has limited temperature zone space and the temperature adjustment range of the variable temperature chamber is small.

[0005] Some embodiments of the present application provide a multi-temperature zone refrigerator, comprising a refrigerator compartment, a freezer compartment, a soft freezer compartment, a variable temperature zone refrigerator, a refrigerator evaporator, a freezer evaporator, a variable temperature evaporator, a condenser, and a compressor. The refrigerator evaporator, freezer evaporator, and variable temperature evaporator are connected to the condenser and compressor to form a refrigeration circuit. The refrigerator evaporator cools the refrigerator compartment, the freezer evaporator cools the freezer compartment, the refrigerator evaporator or the freezer evaporator cools the soft freezer compartment, and the variable temperature evaporator cools the variable temperature zone refrigerator.

[0006] Optionally, the refrigeration chamber and the freezer chamber are arranged in order from top to bottom. The variable temperature chamber is located below the refrigeration chamber and is spaced apart from the freezer chamber along a first direction, wherein the first direction forms an angle with the vertical direction. The soft freezer chamber is located within the refrigeration chamber.

[0007] Optionally, the multi-temperature zone refrigerator further includes a refrigeration duct assembly, which includes a refrigeration duct, at least two refrigeration air outlets, at least one refrigeration return air outlet, and a refrigeration fan. The refrigeration duct is disposed outside the refrigeration compartment, and the refrigeration evaporator is located within the refrigeration duct. The refrigeration air outlet connects the refrigeration duct to the refrigeration compartment, and the refrigeration return air outlet connects the refrigeration duct to the refrigeration compartment. The refrigeration fan is located within the refrigeration duct and is configured to circulate air between the refrigeration evaporator and the refrigeration compartment.

[0008] Optionally, the refrigeration compartment includes a first refrigeration compartment and a second refrigeration compartment. The second refrigeration compartment and the temperature-changing chamber are located on a side of the first refrigeration compartment close to the freezer compartment, and the second refrigeration compartment and the soft freezer compartment are spaced apart along the first direction.

[0009] Optionally, the refrigeration evaporator is used to cool the soft freezer compartment. The refrigeration compartment further includes a return air chamber, with a refrigeration return air port provided on a sidewall thereof. Along the second direction, the second refrigeration compartment and the soft freezer compartment are provided with a return air chamber on a side facing the refrigeration air duct. The return air chamber is connected to the first refrigeration compartment and the second refrigeration compartment and is isolated from the soft freezer compartment. The second direction, the first direction, and the vertical direction are mutually angled.

[0010] Optionally, the multi-temperature zone refrigerator further includes a freezing air duct assembly, comprising a first air duct, at least two first air outlets, at least one first air return outlet, and a freezing air blower. The first air duct is disposed outside the freezing chamber, the freezing evaporator is located within the first air duct, the first air outlet communicates with the freezing chamber, and the first air return outlet communicates with the freezing chamber. The freezing air blower is located within the first air duct and is configured to circulate air between the freezing evaporator and the freezing chamber.

[0011] Optionally, the freezing evaporator is used to cool the soft freezer compartment, and the freezing air duct assembly further includes a second air outlet, a second air duct, a damper and a third air duct. The second air outlet is located at one end of the first air duct facing the soft freezer compartment. One end of the second air duct is connected to the first air duct through the second air outlet, and the other end of the second air duct is used to connect to the soft freezer compartment. The damper is arranged between the second air outlet and the soft freezer compartment, and is used to control the second air duct to be in a conducting state or a closed state. One end of the third air duct is used to connect to the soft freezer compartment, and the other end of the third air duct is arranged near the first return air outlet and connected to the first air duct. When the damper is in the conducting state, the freezing fan drives part of the air to circulate between the soft freezer compartment, the third air duct, the freezing evaporator, the second air duct and the soft freezer compartment.

[0012] Optionally, the freezing air duct assembly also includes a fourth air duct, a portion of which is located in the soft freezing chamber and extends therein, the fourth air duct is provided with a plurality of third air outlets connected to the soft freezing chamber, and another portion of the fourth air duct is connected to the first air duct.

[0013] Optionally, a fourth air outlet and a second air return outlet are provided on a side wall of the refrigerator compartment, and a portion of the fourth air duct located outside the soft freezer compartment is connected to the fourth air outlet to communicate with the second air duct. The freezing air duct assembly further includes a connecting air duct, wherein a third air return outlet is provided in the soft freezer compartment corresponding to the second air return outlet, the connecting air duct is located in the refrigerator compartment and connected between the second and third air return outlets, and the third air duct is communicated with the connecting air duct via the second air return outlet.

[0014] Optionally, the multi-temperature zone refrigerator further includes a variable temperature air duct assembly, which includes a variable temperature air duct, at least two variable temperature air outlets, at least one variable temperature return air outlet, and a variable temperature fan. The variable temperature air duct is disposed outside the variable temperature chamber, the variable temperature evaporator is located within the variable temperature duct, the variable temperature air outlet communicates with the variable temperature duct and the variable temperature chamber, and the variable temperature return air outlet communicates with the variable temperature duct and the variable temperature chamber. The variable temperature fan is located within the variable temperature duct and is used to circulate air between the variable temperature evaporator and the variable temperature chamber.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] The multi-temperature zone refrigerator provided in the embodiments of the present application includes three different temperature zones: a refrigerator, a freezer, and a soft freezer. The refrigerator is cooled by a refrigeration evaporator, the freezer is cooled by a freezing evaporator, and the soft freezer is cooled by either a refrigeration evaporator or a freezing evaporator. This allows users to flexibly store items in corresponding temperature zones according to different temperature requirements. For example, items that require low-temperature refrigeration can be placed in the refrigerator, items that require low-temperature freezing can be placed in the freezer, and items that require high freshness preservation and are not suitable for freezing and hardening can be stored in the soft freezer, thereby improving the freshness of the stored items.

[0017] Because the multi-temperature zone refrigerator also includes a variable temperature chamber, and the variable temperature evaporator is used to cool the variable temperature chamber, the variable temperature chamber is independently cooled by the variable temperature evaporator. This allows the variable temperature chamber to be flexibly controlled by adjusting the cooling capacity of the variable temperature evaporator without affecting the refrigerator, freezer, and soft freezer compartments. This allows the variable temperature chamber to be switched between refrigeration mode, freezing mode, or soft freezer mode to meet the user's storage needs for different temperature spaces, thereby improving the freshness of stored items.

[0018] In this application, the four temperature zones of the multi-temperature zone refrigerator can achieve cooling control through only three evaporators, and the variable temperature chamber can be flexibly adjusted within a large temperature range between refrigeration and freezing, while reducing the cost of the entire machine and providing users with a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A top view of a multi-temperature zone refrigerator provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 A front view of the box shown in ;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the rear interior space of a multi-temperature zone refrigerator is shown;

[0025] Figure 4 for Figure 1 Cross-sectional view along line AA;

[0026] Figure 5 A schematic structural diagram of a variable temperature air duct provided in an embodiment of the present application;

[0027] Figure 6 A schematic structural diagram of a refrigeration air duct provided in an embodiment of the present application;

[0028] Figure 7 for Figure 2 A schematic diagram of a structure of a refrigeration compartment at the rear side wall shown in FIG;

[0029] Figure 8 A top view of the second refrigerated compartment and the soft freezer compartment in the refrigerated compartment;

[0030] Figure 9 A schematic structural diagram of a refrigeration air duct provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 10. Cabinet; 11. Refrigeration compartment; 111. First refrigeration compartment; 112. Second refrigeration compartment; 113. Return air chamber; 12. Freezer compartment; 13. Soft freezer compartment; 14. Temperature-changing chamber;

[0033] 20. Door body;

[0034] 31. Refrigeration evaporator; 32. Freezing evaporator; 33. Temperature-variable evaporator; 34. Condenser; 35. Compressor;

[0035] 40. Variable temperature air duct assembly; 41. Variable temperature air duct; 42. Variable temperature fan; 43. Variable temperature air outlet; 44. Variable temperature return air outlet;

[0036] 50. Refrigeration air duct assembly; 51. Refrigeration air duct; 52. Refrigeration fan; 53. Refrigeration air outlet; 54. Refrigeration air return outlet;

[0037] 60. Refrigeration duct assembly; 61. First air duct; 62. Refrigeration fan; 63. First air outlet; 64. First return air outlet; 65. Second air outlet; 661. Second air duct; 662. Damper; 663. Third air duct; 664. Fourth air duct; 665. Third air outlet; 666. Connecting air duct; 671. Fourth air outlet; 672. Second return air outlet;

[0038] Z, up and down direction; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0041] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0042] Figure 1 A top view of the multi-temperature zone refrigerator provided in an embodiment of the present application. Figure 2 for Figure 1 A front view of the box shown in . Figure 3 for Figure 1 A schematic diagram of the structure of the rear interior space of a multi-temperature zone refrigerator is shown. Figure 4 for Figure 1 Sectional view along line AA. Figure 5 A schematic diagram of the structure of a variable temperature air duct provided in an embodiment of the present application. Figure 6 A schematic structural diagram of a refrigeration air duct provided in an embodiment of the present application. Figure 7 for Figure 2 A schematic structural diagram of the rear side wall of the refrigeration compartment is shown in FIG. Figure 8 This is a top view of the second refrigerated compartment and the soft freezer compartment in the refrigerated compartment. Figure 9 A schematic structural diagram of a refrigeration air duct provided in an embodiment of the present application.

[0043] See also Figures 1 to 9 , the embodiment of the present application provides a multi-temperature zone refrigerator to solve the problem that the refrigerator has less temperature zone space and the temperature adjustment range of the variable temperature chamber is small.

[0044] like Figure 1 As shown, the multi-temperature zone refrigerator includes a cabinet 10 and a door 20 . The door 20 is hinged to the cabinet 10 and is used to open or close the storage compartment inside the cabinet 10 .

[0045] For example, Figure 1As shown, the multi-temperature zone refrigerator can be provided with two door bodies 20, and the two door bodies 20 are spaced apart along the first direction X (such as the left and right direction). In this way, when the door body 20 is opened and rotated, the door body 20 set up with the double door has a smaller space occupation area and a simple structure. Figure 1 In the closed state shown, it is located at the front side of the box body 10 along the second direction Y.

[0046] Alternatively, a multi-temperature zone refrigerator can be equipped with four doors 20, known as a cross-door refrigerator. For example, on the front side of the refrigerator body 10, two doors 20 are located in the upper half of the refrigerator body 10, spaced apart in the left-right direction. The other two doors 20 are located in the lower half of the refrigerator body 10, spaced apart in the left-right direction. Each door 20 can independently control the opening and closing of its corresponding storage compartment, thereby preventing the loss of cold air caused by opening multiple storage compartments at once.

[0047] like Figure 2 As shown, the multi-temperature zone refrigerator includes a refrigerator compartment 11, a freezer compartment 12, a soft freezer compartment 13 and a temperature-changing chamber 14. Exemplarily, the refrigerator body 10 is provided with storage compartments such as the refrigerator compartment 11, the freezer compartment 12, the soft freezer compartment 13 and the temperature-changing chamber 14.

[0048] Combine Figure 3 and Figure 4 The multi-temperature zone refrigerator further includes a refrigeration evaporator 31, a freezing evaporator 32, a temperature-variable evaporator 33, a condenser 34, and a compressor 35. The refrigeration evaporator 31, the freezing evaporator 32, and the temperature-variable evaporator 33 are connected to the condenser 34 and the compressor 35 to form a refrigeration circuit, so that the refrigerant flows to the condenser after being compressed by the compressor 35. The compressed refrigerant liquefies and releases heat in the condenser 34. The liquefied refrigerant then flows through the throttling device to at least one of the refrigeration evaporator 31, the freezing evaporator 32, and the temperature-variable evaporator 33, and vaporizes in the evaporator to absorb heat, thereby cooling the air near the evaporator.

[0049] For example, the refrigeration evaporator 31, the freezing evaporator 32, and the temperature-variable evaporator 33 can be connected in parallel and then connected between the condenser 34 and the compressor 35. In this case, the flow of refrigerant in the refrigeration evaporator 31, the freezing evaporator 32, and the temperature-variable evaporator 33 can be adjusted by a throttling device or a valve to control the temperature range in the corresponding storage room.

[0050] Alternatively, the refrigeration evaporator 31, the freezing evaporator 32 and the temperature-variable evaporator 33 may be partially connected in series and partially connected in parallel, and then the entirety may be connected between the condenser 34 and the compressor 35, without limitation thereto.

[0051] Based on this, the refrigeration evaporator 31 is configured to cool the refrigeration chamber 11, the freezing evaporator 32 is configured to cool the freezing chamber 12, the refrigeration evaporator 31 or the freezing evaporator 32 is configured to cool the soft freezing chamber 13, and the temperature variable evaporator 33 is configured to cool the temperature variable chamber 14.

[0052] The multi-temperature zone refrigerator provided in the embodiment of the present application includes three different temperature zones: a refrigerator compartment 11, a freezer compartment 12, and a soft freezer compartment 13. The refrigerator compartment 11 is cooled by a refrigeration evaporator 31, the freezer compartment 12 is cooled by a freezing evaporator 32, and the soft freezer compartment 13 is cooled by either the refrigeration evaporator 31 or the freezing evaporator 32. This allows users to flexibly store items in corresponding temperature zones according to different temperature requirements. For example, items that require low-temperature refrigeration can be placed in the refrigerator compartment 11, items that require low-temperature freezing can be placed in the freezer compartment 12, and items that require high freshness preservation and are not suitable for freezing and hardening can be stored in the soft freezer compartment 13, thereby improving the freshness preservation effect of the stored items.

[0053] Furthermore, since the multi-temperature zone refrigerator also includes a variable temperature chamber 14, and the variable temperature evaporator 33 is used to cool the variable temperature chamber 14, the variable temperature chamber 14 is independently cooled by the variable temperature evaporator 33. This allows the temperature in the variable temperature chamber 14 to be flexibly controlled by adjusting the cooling capacity of the variable temperature evaporator 33 without affecting the refrigerator compartment 11, freezer compartment 12, and soft freezer compartment 13. This allows the variable temperature chamber 14 to be switched between refrigeration mode, freezing mode, or soft freezer mode to meet the user's storage needs for different temperature spaces, thereby improving the preservation of stored items.

[0054] In the present application, the four temperature zones of the multi-temperature zone refrigerator can achieve cooling control through only three evaporators, and the variable temperature chamber 14 can be flexibly adjusted within a large temperature range between refrigeration and freezing, while reducing the cost of the entire machine and providing users with a better user experience.

[0055] In some embodiments, the multi-temperature zone refrigerator may be a double-door structure or a cross-door structure, but the housing 10 has a plurality of independent storage compartments.

[0056] For example, Figure 2 As shown, the refrigerating chamber 11 and the freezing chamber 12 are arranged sequentially from top to bottom, i.e., the refrigerating chamber 11 and the freezing chamber 12 are spaced apart along the vertical direction Z. In the lower half of the housing 10, the variable temperature chamber 14 is located below the refrigerating chamber 11 and spaced apart from the freezing chamber 12 along the first direction X, thereby preventing the temperature between the refrigerating chamber 11 and the freezing chamber 12 from affecting the temperature control in the variable temperature chamber 14.

[0057] The soft freezer compartment 13 is located in the refrigerator compartment 11. Since the temperature range of the soft freezer compartment 13 is closer to the temperature range of the refrigerator compartment than the freezer compartment 12, the temperature of the soft freezer compartment 13 provided in the refrigerator compartment 11 will not be too high or too low.

[0058] Since cold air has a high density and sinks, and the temperature of the soft freezer compartment 13 is lower than that of the refrigerating compartment 11, the soft freezer compartment 13 can be arranged below the refrigerating compartment 11. In this way, the soft freezer compartment 13 can maintain a temperature lower than that of the refrigerating compartment 11, thereby reducing the impact and interference on the temperature in the refrigerating compartment 11.

[0059] It should be noted that, in the embodiment of the present application, the first direction X, the second direction Y, and the up-down direction have an included angle. For example, the first direction X may be the left-right direction, and the second direction Y may be the front-back direction, without limitation.

[0060] In some embodiments, as Figure 3 and Figure 5 As shown, the multi-temperature zone refrigerator further includes a variable temperature air duct assembly 40. The variable temperature air duct assembly 40 includes a variable temperature air duct 41 and a variable temperature fan 42. The variable temperature air duct 41 is arranged in the variable temperature chamber 14 (as shown in FIG. Figure 2 As shown in FIG, the temperature variable evaporator 33 is located in the temperature variable air duct 41. The temperature variable air duct assembly 40 is arranged on the rear side of the box body 10, that is, on the rear side of the temperature variable room 14.

[0061] Reference Figure 2 、 Figure 3 and Figure 5 The variable temperature air duct assembly 40 further includes at least two variable temperature air outlets 43 and at least one variable temperature return air outlet 44. The variable temperature air outlets 43 connect the variable temperature air duct 41 and the variable temperature chamber 14. For example, multiple variable temperature air outlets 43 are spaced apart on a side wall (e.g., a rear wall) of the variable temperature chamber 14, allowing air within the variable temperature air duct 41 to flow from the variable temperature air outlets 43 to the variable temperature chamber 14. The variable temperature air outlets 43 can be disposed on the rear wall of the variable temperature chamber 14 to connect to the variable temperature air duct 41.

[0062] Correspondingly, the temperature-variable return air vents 44 connect the temperature-variable air duct 41 and the temperature-variable chamber 14. For example, one or more temperature-variable return air vents 44 may be provided on the sidewalls of the temperature-variable chamber 14. The temperature-variable return air vents 44 may be provided near the bottom of the temperature-variable chamber 14 so that air within the temperature-variable chamber 14 can flow from the temperature-variable return air vents 44 to the temperature-variable air duct 41.

[0063] Based on this, since the temperature-variable fan 42 is located in the temperature-variable air duct 41, by starting the temperature-variable fan 42, air can be driven to circulate between the temperature-variable evaporator 33 and the temperature-variable chamber 14. In this way, the air circulates between the temperature-variable evaporator 33, the temperature-variable air outlet 43, the temperature-variable chamber 14, the temperature-variable return air outlet 44, and the temperature-variable evaporator 33. In other words, the temperature-variable evaporator 33 can cool the temperature-variable chamber 14 through the circulating air.

[0064] In this way, by adjusting the rotation speed of the variable temperature fan 42 or adjusting the flow rate of the refrigerant in the variable temperature evaporator 33, the cooling capacity of the variable temperature evaporator 33 on the variable temperature chamber 14 can be adjusted accordingly, so that the temperature range of the variable temperature chamber 14 can be flexibly controlled, so that the temperature in the variable temperature chamber 14 can be switched and adjusted between the refrigeration mode, the soft freezing mode and the freezing mode, with a larger temperature zone adjustment range.

[0065] In this way, through the configuration of the variable temperature air duct assembly 40, the temperature range in the variable temperature chamber 14 can be flexibly controlled and adjusted by air cooling, thereby avoiding the generation of low-temperature frost in the variable temperature chamber 14 to affect the user experience.

[0066] In other embodiments, the variable temperature evaporator 33 can be configured as an evaporation coil. By installing the variable temperature evaporator 33 with a coil structure inside and on the side walls of the variable temperature chamber 14, the variable temperature chamber 14 can also be cooled and regulated by direct cooling. In this case, the flow rate of the refrigerant in the variable temperature evaporator 33 needs to be adjusted to control the temperature range of the variable temperature chamber 14.

[0067] Among them, in the refrigerating chamber 11, the refrigerating chamber 11 can be divided into three, four or five layers of space in the vertical direction by movable layer plates.

[0068] Based on this, Figure 3 and Figure 5 As shown, the multi-temperature zone refrigerator further includes a refrigeration duct assembly 50, which includes a refrigeration duct 51 and a refrigeration fan 52. The refrigeration duct 51 is provided in the refrigeration chamber 11 (as shown in FIG. Figure 2 As shown in FIG, the refrigeration evaporator 31 is located in the refrigeration air duct 51. The refrigeration air duct assembly 50 is arranged on the rear side of the box body 10, that is, on the rear side of the refrigeration chamber 11.

[0069] like Figure 3 、 Figure 6 and Figure 7 As shown, the refrigeration duct assembly 50 further includes at least two refrigeration air outlets 53 and at least one refrigeration air return vent 54. The refrigeration air outlets 53 connect the refrigeration duct 51 with the refrigeration chamber 11. For example, a plurality of refrigeration air outlets 53 are spaced apart on the sidewalls of the refrigeration chamber 11 so that air in the refrigeration duct 51 can flow from the refrigeration air outlets 53 to the refrigeration chamber 11.

[0070] Refrigerated air outlets 53 can be provided on the rear sidewall of the refrigerating chamber 11 to connect to the refrigerating air duct 51. Exemplarily, the refrigerating air duct 51 includes two refrigerating branch air ducts extending upward from the bottom outside the rear sidewall of the refrigerating chamber 11 and located near the left and right sides of the refrigerating chamber 11. Each refrigerating branch air duct is provided with three refrigerated air outlets 53 connected to the refrigerating chamber 11. The three refrigerated air outlets 53 are spaced apart in the vertical direction, with one refrigerated air outlet 53 located at the top of the refrigerating chamber 11. Since cold air naturally flows downward, this helps improve the uniformity of the temperature distribution in the refrigerating chamber 11.

[0071] Correspondingly, the refrigeration return air vents 54 connect the refrigeration air duct 51 and the refrigeration chamber 11. For example, one or more refrigeration return air vents 54 may be provided on the side wall of the refrigeration chamber 11. The refrigeration return air vents 54 may be provided near the lower portion of the refrigeration chamber 11 so that the air in the refrigeration chamber 11 can flow from the refrigeration return air vents 54 to the refrigeration air duct 51.

[0072] Based on this, since the refrigeration fan 52 is located in the refrigeration air duct 51, by starting the refrigeration fan 52, it can drive the air to circulate between the refrigeration evaporator 31 and the refrigeration chamber 11. In this way, the air circulates between the refrigeration evaporator 31, the refrigeration air outlet 53, the refrigeration chamber 11, the refrigeration return air outlet 54 and the refrigeration evaporator 31. In other words, the refrigeration evaporator 31 can cool the refrigeration chamber 11 through the circulating air.

[0073] In this way, by adjusting the rotation speed of the refrigeration fan 52 or adjusting the flow rate of the refrigerant in the refrigeration evaporator 31, the cooling capacity of the refrigeration evaporator 31 on the refrigeration chamber 11 can be adjusted accordingly, so as to flexibly control the temperature range of the refrigeration chamber 11, thereby avoiding large fluctuations in the temperature in the refrigeration chamber 11.

[0074] In this way, through the configuration of the refrigeration air duct assembly 50, the temperature range in the refrigeration chamber 11 can be accurately controlled by air cooling, thereby avoiding the generation of low-temperature frost in the refrigeration chamber 11 to affect the user experience.

[0075] In other embodiments, the refrigeration evaporator 31 may be configured as an evaporation coil. By installing the refrigeration evaporator 31 with a coil structure inside and on the sidewalls of the refrigeration chamber 11, the temperature of the refrigeration chamber 11 can be controlled by direct cooling. In this case, the flow rate of the refrigerant in the refrigeration evaporator 31 is adjusted to control the temperature range of the refrigeration chamber 11.

[0076] In some embodiments, as Figure 2As shown, the refrigeration compartment 11 includes a first refrigeration compartment 111 and a second refrigeration compartment 112. The second refrigeration compartment 112 and the temperature-changing chamber 14 are located on a side of the first refrigeration compartment 111 close to the freezer compartment 12 (e.g., the lower side). The second refrigeration compartment 112 and the soft freezer compartment 13 are spaced apart along the first direction X.

[0077] Due to the presence of the variable temperature chamber 14, the soft freezer compartment 13 has a smaller space requirement. Thus, by arranging the soft freezer compartment 13 at the bottom layer of the refrigeration compartment 11 and separating it from the second refrigeration compartment 112, the refrigeration compartment 11 can maintain a larger space, thereby meeting the user's greater refrigeration needs.

[0078] For example, the soft freezer compartment 13 and the second refrigerated compartment 112 can be configured as a drawer. The drawer-structured soft freezer compartment 13 facilitates isolation from the refrigerated compartment 11, preventing the lower temperature within the soft freezer compartment 13 from affecting the uniformity of the temperature distribution within the refrigerated compartment 11. The drawer-structured second refrigerated compartment 112 can be semi-open, allowing some air from the refrigerated compartment 11 to circulate within the second refrigerated compartment 112. The drawer-structured second refrigerated compartment 112 can also store items that are not suitable for placement.

[0079] Correspondingly, such as Figure 4 and Figure 8 As shown, the refrigeration compartment 11 further includes a return air cavity 113, the sidewall of which is provided with a refrigeration return air port 54. Along the second direction, the second refrigeration compartment 112 and the soft freezer compartment 13 are provided with a return air cavity 113 on the side (i.e., the rear side) facing the refrigeration air duct 51. The return air cavity 113 is connected to the first refrigeration compartment 111 and the second refrigeration compartment 112, and is isolated from the soft freezer compartment 13.

[0080] Illustratively, a refrigerated return air vent 54 is provided on the rear or lower sidewall of the return air chamber 113, communicating with the refrigerated air duct 51. This allows air to circulate between the refrigerated evaporator 31, the refrigerated air outlet 53, the first refrigerated compartment 111 (the second refrigerated compartment 112), the return air chamber 113, the refrigerated return air vent 54, and the refrigerated evaporator 31.

[0081] However, since the return air chamber 113 is isolated from the soft freezing chamber 13, the air flowing through the refrigeration evaporator 31 will not flow through the soft freezing chamber 13, or only a very small part of it will flow through the soft freezing chamber 13, which has little impact.

[0082] Correspondingly, in the soft freezer compartment 13, the air used for cooling does not flow through the refrigerator compartment 11, or only a small amount of air flows into the refrigerator compartment 11, which has little impact. In other words, in this structure, the soft freezer compartment 13 is not cooled by the refrigeration evaporator 31, and the soft freezer compartment 13 can be cooled by the freezing evaporator 32.

[0083] In some embodiments, as Figure 3 and Figure 9 As shown, the multi-temperature zone refrigerator further includes a freezing air duct assembly 60, which includes a first air duct 61 and a freezing fan 62. The freezing air duct assembly 60 is arranged in the freezing chamber 12 (as shown in FIG. Figure 2 As shown in FIG, the freezing evaporator 32 is located in the first air duct 61. As shown in FIG, the freezing air duct assembly 60 is arranged on the rear side of the box body 10, that is, on the rear side of the freezing chamber 12.

[0084] like Figure 2 、 Figure 3 and Figure 9 As shown, the freezing air duct assembly 60 further includes at least two first air outlets 63 and at least one first air return outlet 64. The first air outlets 63 connect the first air duct and the freezing chamber 12. For example, a plurality of first air outlets 63 are spaced apart on a side wall (e.g., a rear side wall) of the freezing chamber 12 so that air in the first air duct can flow from the first air outlets 63 to the freezing chamber 12.

[0085] Correspondingly, the first return air vent 64 connects the first air duct and the freezer compartment 12. For example, one or more first return air vents 64 may be provided on the sidewall of the freezer compartment 12. The first return air vents 64 may be provided near the lower portion of the freezer compartment 12 so that the air in the freezer compartment 12 can flow from the first return air vents 64 to the first air duct.

[0086] Based on this, since the refrigeration fan 62 is located in the first air duct, by starting the refrigeration fan 62, air can be driven to circulate between the refrigeration evaporator 32 and the freezer compartment 12. In this way, the air circulates between the refrigeration evaporator 32, the first air outlet 63, the freezer compartment 12, the first return air outlet 64 and the refrigeration evaporator 32, that is, the refrigeration evaporator 32 can cool the freezer compartment 12 through the circulating air.

[0087] In this way, by adjusting the speed of the refrigeration fan 62 or adjusting the flow rate of the refrigerant in the refrigeration evaporator 32, the cooling capacity of the refrigeration evaporator 32 on the freezer chamber 12 can be adjusted accordingly, so as to flexibly control the temperature range of the freezer chamber 12 and avoid large fluctuations in the temperature in the freezer chamber 12.

[0088] In this way, through the configuration of the freezing air duct assembly 60, the temperature range in the freezing chamber 12 can be accurately controlled by air cooling, thereby avoiding the generation of low-temperature frost in the freezing chamber 12 to affect the user experience.

[0089] In other embodiments, the evaporator 32 may be configured as an evaporating coil. By installing the evaporator 32 with a coil structure inside and on the sidewalls of the freezer compartment 12, the temperature of the freezer compartment 12 can be controlled by direct cooling. In this case, the flow rate of the refrigerant in the evaporator 32 is adjusted to control the temperature range of the freezer compartment 12.

[0090] The freezing air duct assembly 60 also refrigerates the soft freezing chamber 13 at the same time, that is, the freezing evaporator 32 is used to cool the soft freezing chamber 13.

[0091] For example, Figure 3 、 Figure 4 and Figure 9 As shown, the freezing air duct assembly 60 also includes a second air outlet 65, a second air duct 661, a damper 662, and a third air duct 663. The second air outlet 65 is located at one end of the first air duct 61 facing the soft freezer compartment 13, such as the second air outlet 65 is opened at the upper end of the first air duct 61. One end of the second air duct 661 is connected to the first air duct 61 through the second air outlet 65, and the other end of the second air duct 661 is used to connect to the soft freezer compartment 13. The damper 662 is arranged between the second air outlet 65 and the soft freezer compartment 13 and is used to control whether the second air duct 661 is in a conducting state or a closed state. One end of the third air duct 663 is used to connect to the soft freezer compartment 13, and the other end of the third air duct 663 is arranged near the first return air outlet 64 and connects to the first air duct 61.

[0092] In this way, when the damper 662 is in the on state, the refrigeration fan 62 drives part of the air to circulate between the soft freezer chamber 13, the third air duct 663, the refrigeration evaporator 32, the second air outlet 65, the second air duct 661 and the soft freezer chamber 13 to cool the soft freezer chamber 13 through the refrigeration evaporator 32.

[0093] If the temperature in the soft freezer compartment 13 reaches the preset temperature, the second air duct 661 is closed by controlling the damper member 662 to prevent the air cooled by the freezing evaporator 32 from flowing into the soft freezer compartment 13 through the second air duct 661, so as to prevent the temperature in the soft freezer compartment 13 from continuing to drop to an overcooled state.

[0094] In addition, the amount of cold air flowing into the soft freezing chamber 13 can also be increased or decreased by controlling the opening size of the damper member 662.

[0095] In this way, while the soft freezer compartment 13 is cooled by the freezing evaporator 32, the flow rate of cold air flowing into the soft freezer compartment 13 is easily controlled by the setting of the damper member 662, thereby accurately controlling the temperature range of the soft freezer compartment 13.

[0096] In the first air duct 61, along the air flow direction, the refrigeration fan 62 is located downstream of the refrigeration evaporator 32, and the first return air inlet 64 is located upstream of the refrigeration evaporator 32, so that the refrigeration fan 62 can drive the air returning from the freezer compartment 12 to be cooled during the process of flowing through the refrigeration evaporator 32. Exemplarily, the refrigeration fan 62 is located on the upper side of the refrigeration evaporator 32, and the first return air inlet 64 is located on the lower side of the refrigeration evaporator 32.

[0097] Because the internal space of the soft freezer compartment 13 of the drawer structure is small. Figure 8 As shown, the freezing air duct assembly 60 further includes a fourth air duct 664, a portion of which is located in and extends within the soft freezer compartment 13, and the fourth air duct 664 has a plurality of third air outlets 665 connected to the soft freezer compartment 13. Another portion of the fourth air duct 664 is connected to the first air duct 61.

[0098] In this way, the cold air flowing through the freezing evaporator 32 flows into the fourth air duct 664 from the first air duct 61, and then passes through the fourth air duct 664 extending inside the soft freezing chamber 13 and the multiple third air outlets 665 connected to the soft freezing chamber 13, so that the cold air can quickly fill the internal space of the soft freezing chamber 13, thereby achieving rapid cooling and helping to improve the uniformity of temperature distribution.

[0099] For example, the fourth air duct 664 can be provided at the top wall of the soft freezer compartment 13, and the third air outlet 665 is provided at the lower side wall of the fourth air duct 664 to connect the fourth air duct 664 and the soft freezer compartment 13. In the soft freezer compartment 13, the fourth air duct 664 can include one, two, or three branch air ducts, and each branch air duct is provided with a plurality of third air outlets 665 distributed at intervals to improve the uniformity of the distribution of the third air outlets 665 in the soft freezer compartment 13.

[0100] For example, the fourth air duct 664 includes two branch air ducts, which are angled with each other to form a Y-shaped structure. Each branch air duct is provided with multiple spaced-apart third air outlets 665. This arrangement of branch air ducts allows the fourth air duct 664 located above the soft freezer compartment 13 to cover a larger area of the soft freezer compartment 13, thereby evenly distributing the cold air flowing out of the multiple third air outlets 665 within the soft freezer compartment 13. This not only rapidly cools the soft freezer compartment 13 but also helps improve the uniformity of the temperature distribution within the soft freezer compartment 13.

[0101] In some embodiments, as Figure 3 and Figure 7 As shown, the side wall of the refrigerating chamber 11 (return air cavity 113) is provided with a fourth air outlet 671 and a second return air outlet 672. Figure 8A portion of the fourth air duct 664 located outside the soft freezer compartment 13 is connected to the fourth air outlet 671 to communicate with the second air duct 661. The freezing air duct assembly 60 further includes a connecting air duct 666. The soft freezer compartment 13 is provided with a third return air outlet (not shown) corresponding to the second return air outlet 672. The connecting air duct 666 is located in the return air cavity 113 (refrigerator compartment 11) and is connected between the second return air outlet 672 and the third return air outlet. The third air duct 663 is communicated with the connecting air duct 666 through the second return air outlet 672.

[0102] That is, during the operation of the refrigeration fan 62, part of the air can be driven to circulate in sequence among the refrigeration evaporator 32, the second air outlet 65, the second air duct 661, the fourth air outlet 671, the fourth air duct 664, the third air outlet 665, the soft freezer compartment 13, the third return air outlet, the connecting air duct 666, the second return air outlet 672, the third air duct 663 and the refrigeration evaporator 32, and will not flow into the first refrigeration compartment 111 and the second refrigeration compartment 112.

[0103] Since the back side of the soft freezer compartment 13 is the return air chamber 113 of the refrigerator compartment 11, the fourth air duct 664 and the connecting air duct 666 are provided so that the soft freezer compartment 13 can be connected to the second air duct 661 and the third air duct 663 across the return air chamber 113. This allows part of the air flowing through the freezing evaporator 32 to circulate within the soft freezer compartment 13 through the fourth air duct 664 and the connecting air duct 666. This prevents the low-temperature air flowing through the soft freezer compartment 13 from affecting the temperature distribution within the refrigerator compartment 11.

[0104] In some embodiments, the variable temperature air duct assembly 40 and the variable temperature evaporator 33 are located on a side of the variable temperature chamber 14 away from the opening (or door), i.e., the rear side, along the second direction Y. Correspondingly, the freezing air duct assembly 60 and the freezing evaporator 32 are located on a side of the freezing chamber 12 away from the opening (or door), i.e., the rear side, along the second direction Y.

[0105] On the rear side of the freezer compartment 12 , the first air duct 61 and the third air duct 663 are sequentially distributed along the first direction X. Along the first direction, the soft freezer compartment 13 and the freezer compartment 12 are located on the same side of the multi-temperature zone refrigerator, for example, the soft freezer compartment 13 is located directly above the freezer compartment 12 , so as to facilitate the arrangement of the circulation air duct of the soft freezer compartment 13 .

[0106] Among them, Figure 8 As shown, the damper 662 can be located in the return air cavity 113 and disposed at the fourth air outlet 671 (as shown in FIG. Figure 3 As shown) between the fourth air duct 664 and the second air duct 661 to control the conduction and closing states between the fourth air duct 664 and the second air duct 661, which is not limited to this.

[0107] In some other embodiments, the damper 662 may be provided at the second air outlet 65 to control whether the first air duct 61 is in a conductive state with the second air duct 661. Alternatively, the damper 662 may be provided between the second air duct 661 and the fourth air outlet 671 to control whether the fourth air outlet 671 is in a normally open state, thereby controlling the circulation flow of cold air in the soft freezer compartment 13 to increase or decrease the temperature of the soft freezer compartment 13.

[0108] Exemplarily, the third return air inlet is opened at the rear side wall of the soft freezing chamber 13 and is located at a lower position on the left side.

[0109] It should be noted that for refrigerators with an air-cooling structure, the variable temperature air duct 41, the refrigeration air duct 51, and the first air duct 61 generally form a double-layered duct structure. The corresponding variable temperature fan 42, the refrigeration fan 52, and the freezing fan 62 are located at the connecting openings of the double-layered ducts to blow air from the outer duct to the inner duct. The return air inlet structure and the evaporator are located in the outer duct, so that the air in the corresponding compartment flows through the evaporator through the return air inlet structure and is cooled. The outlet structure is located in the inner duct to pump the cooled air to the corresponding compartment. In this way, the multiple outlets of the inner duct can be flexibly arranged as needed.

[0110] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0111] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0112] The above are merely specific embodiments of the present application to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather is intended to conform to the widest scope consistent with the principles and novel features of the present application.

Claims

1. A multi-temperature zone refrigerator, characterized in that: The multi-temperature zone refrigerator comprises a refrigerating chamber (11), a freezing chamber (12), a soft freezing chamber (13), a variable temperature chamber (14), a refrigerating evaporator (31), a freezing evaporator (32), a variable temperature evaporator (33), a condenser (34) and a compressor (35); The refrigeration evaporator (31), the freezing evaporator (32) and the temperature-variable evaporator (33) are connected to the condenser (34) and the compressor (35) to form a refrigeration circuit; The refrigeration evaporator (31) is used to cool the refrigeration chamber (11), the freezing evaporator (32) is used to cool the freezing chamber (12), the refrigeration evaporator (31) or the freezing evaporator (32) is used to cool the soft freezing chamber (13), and the variable temperature evaporator (33) is used to cool the variable temperature chamber (14).

2. The multi-temperature zone refrigerator according to claim 1, characterized in that: The refrigerating chamber (11) and the freezing chamber (12) are sequentially distributed from top to bottom; The temperature-changing chamber (14) is located below the refrigerating chamber (11) and is spaced apart from the freezing chamber (12) along a first direction, wherein the first direction forms an angle with the up-down direction; The soft freezing chamber (13) is located in the refrigerating chamber (11).

3. The multi-temperature zone refrigerator according to claim 2, characterized in that: The multi-temperature zone refrigerator further includes a refrigeration air duct assembly (50), and the refrigeration air duct assembly (50) includes: A refrigeration air duct (51) is arranged outside the refrigeration chamber (11), and the refrigeration evaporator (31) is located in the refrigeration air duct (51); at least two refrigeration air outlets (53) communicating with the refrigeration air duct (51) and the refrigeration chamber (11); at least one refrigeration air return port (54) communicating with the refrigeration air duct (51) and the refrigeration chamber (11); and a refrigeration fan (52), wherein the refrigeration fan (52) is located in the refrigeration air duct (51) and is used to drive air to circulate between the refrigeration evaporator (31) and the refrigeration chamber (11).

4. The multi-temperature zone refrigerator according to claim 3, characterized in that: The refrigeration chamber (11) includes a first refrigeration compartment (111) and a second refrigeration compartment (112); The second refrigeration compartment (112) and the temperature-changing chamber (14) are located on a side of the first refrigeration compartment (111) close to the freezing chamber (12), and the second refrigeration compartment (112) and the soft freezing chamber (13) are spaced apart along the first direction.

5. The multi-temperature zone refrigerator according to claim 4, characterized in that: The freezing evaporator (32) is used to cool the soft freezing chamber (13); The refrigeration chamber (11) further comprises a return air cavity (113), and a side wall of the return air cavity (113) is provided with the refrigeration return air port (54); Along the second direction, the second refrigeration compartment (112) and the soft freezer compartment (13) are provided with the return air chamber (113) on one side facing the refrigeration air duct (51), the return air chamber (113) is connected to the first refrigeration compartment (111) and the second refrigeration compartment (112), and the return air chamber (113) is isolated from the soft freezer compartment (13); The second direction, the first direction and the up-down direction have an included angle with each other.

6. The multi-temperature zone refrigerator according to any one of claims 2 to 5, characterized in that: The multi-temperature zone refrigerator further comprises a freezing air duct assembly (60), wherein the freezing air duct assembly (60) comprises: A first air duct (61) is provided outside the freezing chamber (12), and the freezing evaporator (32) is located in the first air duct (61); at least two first air outlets (63) communicating with the first air duct (61) and the freezing chamber (12); at least one first air return port (64) communicating with the first air duct (61) and the freezing chamber (12); and a refrigeration fan (62), wherein the refrigeration fan (62) is located in the first air duct (61) and is used to drive air to circulate between the refrigeration evaporator (32) and the freezing chamber (12).

7. The multi-temperature zone refrigerator according to claim 6, characterized in that: The freezing evaporator (32) is used to cool the soft freezing chamber (13), and the freezing air duct assembly (60) further includes: a second air outlet (65) located at one end of the first air duct (61) facing the soft freezing chamber (13); a second air duct (661), one end of the second air duct (661) being connected to the first air duct (61) via a second air outlet (65), and the other end of the second air duct (661) being connected to the soft freezing chamber (13); A damper member (662) is provided between the second air outlet (65) and the soft freezing chamber (13), and is used to control the second air duct (661) to be in an open state or a closed state; and a third air duct (663), one end of the third air duct (663) being connected to the soft freezing chamber (13), and the other end of the third air duct (663) being arranged near the first return air port (64) and connected to the first air duct (61); When the damper (662) is in the on state, the refrigeration fan (62) drives part of the air to circulate between the soft freezing chamber (13), the third air duct (663), the freezing evaporator (32), the second air duct (661) and the soft freezing chamber (13).

8. The multi-temperature zone refrigerator according to claim 7, characterized in that: The refrigeration air duct assembly (60) further includes: A fourth air duct (664), a portion of the fourth air duct (664) is located in the soft freezer compartment (13) and extends therefrom, the fourth air duct (664) is provided with a plurality of third air outlets connected to the soft freezer compartment (13), and another portion of the fourth air duct (664) is connected to the first air duct (61).

9. The multi-temperature zone refrigerator according to claim 8, characterized in that: The side wall of the refrigerating chamber (11) is provided with a fourth air outlet (671) and a second air return outlet (672); a portion of the fourth air duct (664) located outside the soft freezing chamber (13) is connected to the fourth air outlet (671) to communicate with the second air duct (661); The freezing air duct assembly (60) further includes a connecting air duct (666), and the soft freezing chamber (13) is provided with a third return air outlet corresponding to the second return air outlet (672). The connecting air duct (666) is located in the refrigerating chamber (11) and is connected between the second return air outlet (672) and the third return air outlet, and the third air duct (663) is connected to the connecting air duct (666) through the second return air outlet (672).

10. The multi-temperature zone refrigerator according to any one of claims 1 to 5, characterized in that: The multi-temperature zone refrigerator further includes a variable temperature air duct assembly (40), and the variable temperature air duct assembly (40) includes: A variable temperature air duct (41) is arranged outside the variable temperature chamber (14), and the variable temperature evaporator (33) is located in the variable temperature air duct (41); At least two variable temperature air outlets (43) communicating with the variable temperature air duct (41) and the variable temperature chamber (14); at least one variable temperature return air port (44) communicating with the variable temperature air duct (41) and the variable temperature chamber (14); and a variable temperature fan (42), the variable temperature fan (42) being located in the variable temperature air duct (41) and being used for driving air to circulate between the variable temperature evaporator (33) and the variable temperature chamber (14).

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