Refrigerator

Abstract

The embodiment of the utility model provides a refrigerator, and belongs to the technical field of household appliances. The technical problem is solved. The refrigerator comprises a refrigerator body, a fan and a control structure, wherein the control structure is provided with an air cavity and an extending air duct; the air inlet end of the air cavity is communicated with an air outlet of the fan, the air outlet end of the air cavity is communicated with the refrigerating chamber of the refrigerator body, and a movable control air door is arranged at the air outlet end of the air cavity; when the air door is controlled to be in the first state, the air door is controlled to open the air outlet end, and the air volume entering the first air channel of the box through the air cavity is larger than that entering the second air channel of the box through the air cavity and the extending air channel; when the air door is controlled to be in the second state, the air door is controlled to close the first air duct, and the air outlet of the fan discharges air to the second air duct through the air cavity and the extending air duct. According to the refrigerator, temperature control of double temperature zones can be achieved through one control air door, parts are saved, the cost of the refrigerator is reduced, the structure is compact, occupied effective use space of the refrigerator is reduced, and the volume ratio of the refrigerator is increased.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and in particular, to a refrigerator. Background Art

[0002] A refrigerator is a common household appliance that can keep food ingredients or other items at a constant low temperature. The refrigerator includes a box body and a blower disposed in the box body. The box body is formed with a refrigerating chamber and a variable temperature chamber for storing different food ingredients through the refrigerating chamber and the variable temperature chamber. The blower can discharge cold air into the refrigerating chamber and the variable temperature chamber through two air ducts, so that the refrigerating chamber and the variable temperature chamber are kept at a low temperature. However, control structures need to be provided for both of the two air ducts connecting the refrigerating chamber and the variable temperature chamber to achieve the connection and closing of the corresponding air ducts through the control structures, making the structure of the refrigerator complex. Utility Model Content

[0003] The embodiments of the present application provide a refrigerator, which can solve the technical problem that control structures need to be provided for both of the two air ducts connecting the refrigerating chamber and the variable temperature chamber to achieve the connection and closing of the corresponding air ducts through the control structures, making the structure of the refrigerator complex.

[0004] In a first aspect, the embodiments of the present application provide a refrigerator, including:

[0005] A box body provided with a refrigerating chamber and a variable temperature chamber separated from each other; the box body is further provided with a first air duct and a second air duct, the first air duct is communicated with the refrigerating chamber, and the second air duct is communicated with the variable temperature chamber;

[0006] A blower disposed in the box body; the air outlet of the blower blows air into the refrigerating chamber through the first air duct, and the air outlet of the blower blows air into the variable temperature chamber through the second air duct;

[0007] A control structure, the control structure is provided with an air cavity; the air inlet end of the air cavity is communicated with the air outlet of the blower, the air outlet end of the air cavity is communicated with the refrigerating chamber, and a movable control air door is provided at the air outlet end of the air cavity; the control structure is further provided with an extended air duct, and the air cavity is communicated with the second air duct through the extended air duct;

[0008] When the control air door is in a first state, the control air door opens the air outlet end, and the air volume entering the first air duct through the air cavity is greater than the air volume entering the second air duct through the air cavity and the extended air duct;

[0009] When the control air door is in a second state, the control air door closes the first air duct, and the air outlet of the blower blows air into the second air duct through the air cavity and the extended air duct.

[0010] With such a setting, the temperature control of the dual-temperature zone can be realized through one control air door, saving components, reducing the cost of the refrigerator, having a compact structure, reducing the occupation of the effective use space of the refrigerator, and improving the volume ratio of the refrigerator.

[0011] In some embodiments of the present application, the included angle between the line connecting the air inlet end and the air outlet end of the air cavity and the air outlet direction of the fan is smaller than the included angle between the extending direction of the extending air duct and the air outlet direction of the fan.

[0012] With such a setting, when the control air door is in the first state, most of the cold air in the air cavity can enter the first air duct, and only a very small part of the cold air in the air cavity can enter the second air duct through the extending air duct.

[0013] In some embodiments of the present application, the line connecting the air inlet end and the air outlet end of the air cavity is vertically upward, and the extending direction of the extending air duct is horizontally towards the inner side of the box body;

[0014] The fan is arranged below the control structure, and the air outlet direction of the fan is inclined upward; in the horizontal direction, the air outlet direction of the fan faces the outer side of the box body.

[0015] With such a setting, when the control air door is in the first state, most of the cold air in the air cavity can enter the first air duct, and only a very small part of the cold air in the air cavity can enter the second air duct through the extending air duct.

[0016] In some embodiments of the present application, the control structure is provided with a guiding air duct, the first end of the guiding air duct is communicated with the air outlet of the fan, and the second end of the guiding air duct is communicated with the air inlet end of the air cavity;

[0017] The included angle between the line connecting the first end and the second end of the guiding air duct and the line connecting the air inlet end and the air outlet end of the air cavity is smaller than the included angle between the line connecting the first end and the second end of the guiding air duct and the extending direction of the extending air duct.

[0018] With such a setting, when the control air door is in the first state, most of the cold air in the air cavity can enter the first air duct, and only a very small part of the cold air in the air cavity can enter the second air duct through the extending air duct.

[0019] In some embodiments of the present application, taking the plane perpendicular to the extending direction of the extending air duct as the cross-section, in the direction from the air cavity to the second air duct, the cross-sectional area of the extending air duct gradually decreases.

[0020] With such a setting, when the cold air entering the extending air duct flows out of the extending air duct, the flow rate can be increased, so that the flow rate of the cold air entering the second air duct is relatively fast, and the cooling effect of the variable temperature chamber can be improved.

[0021] In some embodiments of the present application, taking the plane perpendicular to the extending direction of the extending air duct as the cross-section, the cross-sectional area of the extending air duct near the second air duct end is smaller than the cross-sectional area of the second air duct.

[0022] With such a setting, it is convenient for the air in the extending air duct to enter the second air duct.

[0023] In some embodiments of the present application, the opening diameter of the air outlet end of the air cavity is larger than the opening diameter of the end of the extended air duct connected to the air cavity.

[0024] With such an arrangement, when the control damper is in the first state, the air volume entering the first air duct through the air cavity can be significantly greater than the air volume entering the second air duct through the air cavity and the extended air duct.

[0025] In some embodiments of the present application, the first end of the control damper is rotatably disposed on the inner wall of the air cavity, and the first end of the control damper is located on a side of the air outlet end of the air cavity away from the extended air duct.

[0026] With such arrangement, when the control damper is in the first state and the second state, the control damper may not block one end of the extended air duct connected to the ventilation cavity, so that the extended air duct may be in a normally open state.

[0027] In some embodiments of the present application, when the control damper is in the first state, the second end of the control damper is close to the air inlet end of the air cavity; the sealing surface of the control damper is arranged parallel to the line connecting the air inlet end of the air cavity and the air outlet end of the air cavity;

[0028] When the control damper is in the second state, the second end of the control damper is close to the air outlet end of the air cavity; and the sealing surface of the control damper closes the air outlet end of the air cavity.

[0029] With such arrangement, when the damper is controlled to be in the first state, it is convenient to cool the refrigerating chamber; when the damper is controlled to be in the second state, the cold air in the air cavity can be prevented from entering the first air duct.

[0030] In a second aspect, an embodiment of the present application provides a refrigerator, including a box body, a fan and a control structure;

[0031] The box body is provided with a refrigerating chamber and a temperature-changing chamber separated from each other; the fan is connected to the refrigerating chamber through a first air duct, and the fan is connected to the temperature-changing chamber through a second air duct;

[0032] The control structure is provided with an air cavity; the air inlet end of the air cavity is connected with the air outlet of the fan, the air outlet end of the air cavity is connected with the refrigerating chamber, and the air outlet end of the air cavity is provided with a movable control damper; the control structure is also provided with an extended air duct, and the air cavity is connected with the second air duct through the extended air duct;

[0033] When the fan discharges air to the refrigerating chamber through the first air duct, the damper is controlled to open the first air duct, and the air volume entering the first air duct through the air cavity is greater than the air volume entering the second air duct through the air cavity and the extended air duct;

[0034] When the fan discharges air to the variable temperature room through the second air duct, the air door is controlled to close the first air duct, and the air outlet of the fan discharges air to the second air duct through the air cavity and the extended air duct.

[0035] With such a setting, the temperature control of a dual-temperature zone can be achieved through a control air damper, saving components, reducing the cost of the refrigerator, making the structure compact, reducing the occupation of the effective usable space of the refrigerator, and increasing the volume utilization rate of the refrigerator. Description of the Drawings

[0036] In order to more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0037] Figure 1 The first structural schematic diagram of the refrigerator according to the embodiment of the present application;

[0038] Figure 2 The second structural schematic diagram of the refrigerator according to the embodiment of the present application;

[0039] Figure 3 The sectional structural schematic diagram of the refrigerator according to the embodiment of the present application;

[0040] Figure 4 For Figure 3 Partial structural schematic diagram;

[0041] Figure 5 For Figure 4 Enlarged structural schematic diagram;

[0042] Figure 6 The schematic diagram of the rotation direction of the control air damper of the refrigerator according to the embodiment of the present application;

[0043] Figure 7 The second state schematic diagram of the control air damper of the refrigerator according to the embodiment of the present application;

[0044] Figure 8 The internal structural schematic diagram of the refrigerator according to the embodiment of the present application;

[0045] Figure 9 The structural schematic diagram of the control air damper of the refrigerator according to the embodiment of the present application;

[0046] Figure 10 The structural schematic diagram at the blower of the refrigerator according to the embodiment of the present application.

[0047] Description of the Reference Numerals:

[0048] 100 - Cabinet; 101 - Refrigerating Chamber; 102 - Variable Temperature Chamber; 103 - First Air Duct; 104 - Second Air Duct;

[0049] 200 - Blower;

[0050] 301 - Air cavity; 302 - Extended air duct; 303 - Air guiding duct

[0051] 400 - Control air damper; 401 - Sealing surface Detailed implementation manners

[0052] As described in the background art, in the related art, a refrigerator includes a box body and a blower disposed in the box body. The box body is formed with a refrigerating chamber and a variable-temperature chamber for storing different food ingredients through the refrigerating chamber and the variable-temperature chamber. The blower can discharge cold air into the refrigerating chamber and the variable-temperature chamber through two air ducts so that the refrigerating chamber and the variable-temperature chamber are kept at a low temperature. A control structure needs to be provided in the air duct communicating with the refrigerating chamber to realize the connection and closing of the air duct and the refrigerating chamber, and a control structure needs to be provided in the air duct communicating with the variable-temperature chamber to realize the connection and closing of the air duct and the variable-temperature chamber. However, multiple control structures need to be provided for multiple chambers, making the structure of the refrigerator complex.

[0053] In view of this, the refrigerator of the embodiment of the present application includes a box body, a blower and a control structure. The box body is provided with a refrigerating chamber and a variable-temperature chamber separated from each other; the box body is further provided with a first air duct and a second air duct, the first air duct communicates with the refrigerating chamber, and the second air duct communicates with the variable-temperature chamber; the blower is disposed in the box body; the air outlet of the blower blows air into the refrigerating chamber through the first air duct, and the air outlet of the blower blows air into the variable-temperature chamber through the second air duct; the control structure is provided with an air cavity; the air inlet end of the air cavity communicates with the air outlet of the blower, the air outlet end of the air cavity communicates with the refrigerating chamber, and a movable control air damper is provided at the air outlet end of the air cavity; the control structure is further provided with an extended air duct, and the air cavity communicates with the second air duct through the extended air duct; when the control air damper is in the first state, the control air damper opens the air outlet end, and the air volume entering the first air duct through the air cavity is greater than the air volume entering the second air duct through the air cavity and the extended air duct; when the control air damper is in the second state, the control air damper closes the first air duct, and the air outlet of the blower blows air into the second air duct through the air cavity and the extended air duct. The temperature control of the two temperature zones can be realized through one control air damper, saving components, reducing the cost of the refrigerator, having a compact structure, reducing the occupation of the effective use space of the refrigerator, and improving the volume ratio of the refrigerator.

[0054] To make the purpose, implementation manners and advantages of the present application clearer, the following will clearly and completely describe the exemplary implementation manners of the present application with reference to the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0055] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described implementation manners, rather than intending to limit the implementation manners of the present application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0056] In addition, the terms "comprising", "having" and any variations thereof are intended to cover inclusion without exclusion. For example, a product or device comprising a series of components need not be limited to those components clearly listed, but may include other components not clearly listed or inherent to such product or device.

[0057] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0058] The terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0059] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0060] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0061] Please refer to Figures 1 - 3 , the present application provides a refrigerator, which includes a cabinet 100, and the cabinet 100 is provided with a refrigerating chamber 101 and a variable-temperature chamber 102 that are separated from each other. The refrigerating chamber 101 and the variable-temperature chamber 102 can be separated by a partition, and the temperatures of the refrigerating chamber 101 and the variable-temperature chamber 102 can be adjusted separately.

[0062] In some embodiments of the present application, the refrigerating chamber 101 is generally set within a relatively low temperature range, typically between 0 and 8 degrees Celsius. This can keep the food inside fresh and also extend their shelf life.

[0063] In some embodiments of the present application, the temperature inside the variable temperature chamber 102 can be adjusted to a temperature suitable for various non-perishable foods.

[0064] In some embodiments of the present application, both the refrigerating chamber 101 and the variable temperature chamber 102 can sense the temperature through temperature sensors.

[0065] Please refer to Figures 3 - 8 , in some embodiments of the present application, the cabinet 100 is further provided with a first air duct 103 and a second air duct 104. The first air duct 103 is communicated with the refrigerating chamber 101, and the second air duct 104 is communicated with the variable temperature chamber 102.

[0066] In some embodiments of the present application, the first air duct 103 is communicated with the refrigerating chamber 101, and the cold air in the first air duct 103 can enter the refrigerating chamber 101 to adjust the temperature inside the refrigerating chamber 101.

[0067] In some embodiments of the present application, the second air duct 104 is communicated with the variable temperature chamber 102, and the cold air in the second air duct 104 can enter the variable temperature chamber 102 to adjust the temperature inside the variable temperature chamber 102.

[0068] Please refer to Figures 3 - 9 , the refrigerator further includes a blower 200 disposed inside the cabinet 100. The blower 200 inside the refrigerator can drive the impeller to rotate through a motor, forming the suction and acceleration of cold air. The cold air enters the interior of the refrigerator through the air duct to help cool the food.

[0069] In some embodiments of the present application, the air outlet of the blower 200 blows air into the refrigerating chamber 101 through the first air duct 103, and the air outlet of the blower 200 blows air into the variable temperature chamber 102 through the second air duct 104.

[0070] In some embodiments of the present application, the air outlet of the blower 200 can be communicated with the first air duct 103, and the first air duct 103 is communicated with the refrigerating chamber 101. The cold air discharged by the blower 200 can enter the refrigerating chamber 101 through the first air duct 103 to cool the food inside the refrigerating chamber 101.

[0071] In some embodiments of the present application, the air outlet of the blower 200 can be communicated with the second air duct 104, and the second air duct 104 is communicated with the variable temperature chamber 102. The cold air discharged by the blower 200 can enter the variable temperature chamber 102 through the second air duct 104 to cool the food inside the variable temperature chamber 102.

[0072] Please refer to Figures 4 - 7, the refrigerator further includes a control structure. The control structure can be used to control the cold air discharged from the air outlet of the blower 200 to enter the first air duct 103 or the second air duct 104, so that the cold air from the air outlet of the blower 200 blows into the refrigerating chamber 101 through the first air duct 103, or the cold air from the air outlet of the blower 200 blows into the variable temperature chamber 102 through the second air duct 104.

[0073] Please refer to Figures 5 - 7 , in some embodiments of the present application, the control structure is provided with an air cavity 301. The air cavity 301 can be used to accommodate the cold air entering the control structure and divert the cold air.

[0074] In some embodiments of the present application, the air inlet end of the air cavity 301 is communicated with the air outlet of the blower 200, and the air outlet end of the air cavity 301 is communicated with the refrigerating chamber 101.

[0075] In some embodiments of the present application, the air cavity 301 can at least include an air inlet end and an air outlet end. The air inlet end of the air cavity 301 can be located at the lower end of the air cavity 301, and the air inlet end of the air cavity 301 can be communicated with the air outlet of the blower 200, so that the cold air discharged from the air outlet of the blower 200 can smoothly enter the air cavity 301.

[0076] In some embodiments of the present application, the air outlet end of the air cavity 301 can be located at the upper end of the air cavity 301, and the air outlet end of the air cavity 301 can be communicated with the first air duct 103, so that the cold air discharged from the air outlet of the blower 200 enters the refrigerating chamber 101 through the air cavity 301.

[0077] In some embodiments of the present application, a movable control air door 400 is provided at the air outlet end of the air cavity 301. The control air door 400 can be used to divert the cold air entering the control structure.

[0078] In some embodiments of the present application, the control air door 400 can be rotatably arranged at the air outlet end of the air cavity 301. By rotating the control air door 400, the air outlet of the blower 200 can be communicated with the first air duct 103, or the air outlet of the blower 200 can be communicated with the second air duct 104, which is convenient for the blower 200 to supply air to the first air duct 103 and the second air duct 104.

[0079] In some embodiments of the present application, the control structure is further provided with an extension air duct 302, and the air cavity 301 is communicated with the second air duct 104 through the extension air duct 302.

[0080] In some embodiments of the present application, the extension air duct 302 of the control structure can be communicated with the air cavity 301, and the cold air entering the air cavity 301 can enter the second air duct 104 through the extension air duct 302, and the cold air in the second air duct 104 can enter the variable temperature chamber 102 to adjust the temperature in the variable temperature chamber 102.

[0081] In some embodiments of the present application, the control air damper 400 can have two states: open and closed. The open state can be the first state of the control air damper 400, and the closed state can be the second state of the control air damper 400.

[0082] Please refer to Figures 5 - 6 , in some embodiments of the present application, when the control air damper 400 is in the first state, the control air damper 400 opens the air outlet end, and the air volume entering the first air duct 103 through the air cavity 301 is greater than the air volume entering the second air duct 104 through the air cavity 301 and the extended air duct 302.

[0083] In some embodiments of the present application, the first state of the control air damper 400 can be the air inlet state of the refrigerating chamber 101. When the control air damper 400 is in the first state, the control air damper 400 does not block the air outlet end of the air cavity 301, so that the cold air in the air cavity 301 can smoothly enter the first air duct 103.

[0084] Due to different flow field resistances, most of the cold air in the air cavity 301 can enter the first air duct 103, and only a very small part of the cold air in the air cavity 301 can enter the second air duct 104 through the extended air duct 302.

[0085] Please refer to Figure 7 , in some embodiments of the present application, when the control air damper 400 is in the second state, the control air damper 400 closes the first air duct 103, and the air outlet of the blower 200 blows air to the second air duct 104 through the air cavity 301 and the extended air duct 302.

[0086] In some embodiments of the present application, the second state of the control air damper 400 can be the air inlet state of the variable temperature chamber 102. When the control air damper 400 is in the second state, the control air damper 400 can block the air outlet end of the air cavity 301, so that the cold air in the air cavity 301 can enter the second air duct 104 instead of entering the first air duct 103.

[0087] By using one control air damper 400, the temperature control of two temperature zones, namely the refrigerating chamber 101 and the variable temperature chamber 102, can be achieved, saving components, reducing the cost of the refrigerator, having a compact structure, reducing the occupation of the effective use space of the refrigerator, and improving the volume utilization rate of the refrigerator.

[0088] Please refer to Figures 5 - 6 , in some embodiments of the present application, the included angle a between the connection line of the air inlet end and the air outlet end of the air cavity 301 and the air outlet direction of the blower 200 is smaller than the included angle b between the extending direction of the extended air duct 302 and the air outlet direction of the blower 200.

[0089] In some embodiments of the present application, the connection line between the air inlet end and the air outlet end of the air cavity 301 can be the air inlet direction of the first air duct 103, and the extending direction of the extending air duct 302 can be the air inlet direction of the second air duct 104. The air inlet direction of the first air duct 103 is different from the air outlet direction of the fan 200, and the air inlet direction of the second air duct 104 is different from the air outlet direction of the fan 200.

[0090] Please refer to Figures 5 - 6 , in some embodiments of the present application, the air inlet direction of the first air duct 103 can form an angle a with the air outlet direction of the fan 200, and the air inlet direction of the second air duct 104 can form an angle b with the air outlet direction of the fan 200.

[0091] Please refer to Figures 5 - 6 , in some embodiments of the present application, the angle a can be smaller than the angle b. When the control air damper 400 is in the first state, due to different flow field resistances, most of the cold air in the air cavity 301 can enter the first air duct 103, and only a very small part of the cold air in the air cavity 301 can enter the second air duct 104 through the extending air duct 302.

[0092] Please refer to Figures 5 - 7 , in some embodiments of the present application, the connection line between the air inlet end and the air outlet end of the air cavity 301 is vertically upward, and the extending direction of the extending air duct 302 is horizontally towards the inside of the box body 100.

[0093] In some embodiments of the present application, the air inlet direction of the first air duct 103 can be vertically upward, and the air inlet direction of the second air duct 104 can be horizontally towards the inside of the box body 100. The included angle between the air inlet direction of the first air duct 103 and the air inlet direction of the second air duct 104 can be 90 degrees.

[0094] In some embodiments of the present application, the fan 200 is arranged below the control structure. It is convenient for the cold air discharged from the air outlet of the fan 200 to enter the control structure through the lower part of the control structure.

[0095] In some embodiments of the present application, the air inlet end of the air cavity 301 can be located at the lower end of the air cavity 301. The fan 200 arranged below the control structure can discharge the cold air into the air cavity 301 through the air inlet end at the lower end of the air cavity 301.

[0096] In some embodiments of the present application, the air outlet direction of the fan 200 is inclined upward. Horizontally, the air outlet direction of the fan 200 faces the outside of the box body 100.

[0097] Please refer to Figures 5 - 6 , in some embodiments of the present application, when the control air damper 400 opens the first air duct 103, the air outlet direction of the fan 200 deviates from the extending air duct 302, making it difficult for the air outlet of the fan 200 to enter the extending air duct 302.

[0098] By setting the air outlet direction of the fan 200 to be inclined upward, when the control damper 400 opens the first air duct 103, most of the cold air in the air cavity 301 can enter the first air duct 103, and only a very small part of the cold air in the air cavity 301 can enter the second air duct 104 through the extended air duct 302.

[0099] Please refer to Figures 5 - 7 and Figure 10 In some embodiments of the present application, the control structure is provided with a wind guiding air duct 303, and the first end of the wind guiding air duct 303 is communicated with the air outlet of the fan 200.

[0100] In some embodiments of the present application, the wind guiding air duct 303 may be provided with a first end. The first end of the wind guiding air duct 303 may be close to the air outlet of the fan 200.

[0101] In some embodiments of the present application, the air outlet of the fan 200 may be communicated with the wind guiding air duct 303, and the cold air discharged from the air outlet of the fan 200 can directly enter the wind guiding air duct 303 and be discharged through the wind guiding air duct 303.

[0102] In some embodiments of the present application, the second end of the wind guiding air duct 303 is communicated with the air inlet end of the air cavity 301. The second end of the wind guiding air duct 303 may be far from the air outlet of the fan 200.

[0103] The second end of the wind guiding air duct 303 is communicated with the air inlet end of the air cavity 301, which is convenient for the air outlet of the fan 200 to supply air to the air cavity 301 through the wind guiding air duct 303.

[0104] In some embodiments of the present application, the included angle a between the connection line of the first end and the second end of the wind guiding air duct 303 and the connection line of the air inlet end and the air outlet end of the air cavity 301 is smaller than the included angle b between the connection line of the first end and the second end of the wind guiding air duct 303 and the extending direction of the extended air duct 302.

[0105] In some embodiments of the present application, the first end of the wind guiding air duct 303 may be close to the air outlet of the fan 200, and the second end of the wind guiding air duct 303 may be far from the air outlet of the fan 200.

[0106] In some embodiments of the present application, the connection line direction of the first end and the second end of the wind guiding air duct 303 is different from the connection line direction of the air inlet end and the air outlet end of the air cavity 301; the connection line direction of the first end and the second end of the wind guiding air duct 303 is different from the extending direction of the extended air duct 302.

[0107] Please refer to Figures 5 - 7, in some embodiments of the present application, taking a plane perpendicular to the extending direction of the extending air duct 302 as a cross-section, in the direction from the air cavity 301 to the second air duct 104, the cross-sectional area of the extending air duct 302 gradually decreases. When the cold air entering the extending air duct 302 flows out of the extending air duct 302, the flow velocity is increased, so that the flow velocity of the cold air entering the second air duct 104 is relatively fast, which can improve the cooling effect of the variable temperature chamber 102.

[0108] In some embodiments of the present application, taking a plane perpendicular to the extending direction of the extending air duct 302 as a cross-section, the shape of the cross-section can be rectangular. The cross-section close to the air cavity 301 can be larger than the cross-section close to the second air duct 104.

[0109] In some embodiments of the present application, taking a plane perpendicular to the extending direction of the extending air duct 302 as a cross-section, in the direction from the air cavity 301 to the second air duct 104, the cross-section of the extending air duct 302 can be a rectangle with a gradually decreasing area.

[0110] In some embodiments of the present application, a filtering structure can be arranged between the extending air duct 302 and the second air duct 104. The filtering structure can filter the cold air entering the second air duct 104, so that the cold air entering the second air duct 104 is relatively clean, reducing or avoiding the variable temperature chamber 102 from being polluted by foreign gases.

[0111] In some embodiments of the present application, the filtering structure can be a filter net. The filter net can be a metal part or a plastic part. The plastic part has the advantages of light weight and easy processing.

[0112] In some embodiments of the present application, the size of the filter net can be larger than the size of the outlet of the extending air duct 302, so that the filter net can cover the outlet of the extending air duct 302.

[0113] In some embodiments of the present application, taking a plane perpendicular to the extending direction of the extending air duct 302 as a cross-section, the cross-sectional size of the filter net can be smaller than the cross-sectional size of the second air duct 104. This improves the installation convenience of the filter net.

[0114] In some embodiments of the present application, filter holes are uniformly arranged on the filter net. The filter holes can be rectangular, circular or other shapes that allow cold air to pass through.

[0115] Please refer to Figures 5 - 7 , in some embodiments of the present application, taking a plane perpendicular to the extending direction of the extending air duct 302 as a cross-section, the cross-sectional area of the end of the extending air duct 302 close to the second air duct 104 is smaller than the cross-sectional area of the second air duct 104.

[0116] In some embodiments of the present application, the extension air duct 302 extends from one end close to the air cavity 301 to the other end away from the air cavity 301. Taking a plane perpendicular to the extension direction of the extension air duct 302 as a cross-section, the cross-sectional area of the extension air duct 302 gradually decreases. The cross-sectional area of the extension air duct 302 at the end close to the second air duct 104 is smaller than the cross-sectional area of the extension air duct 302 at the end close to the air cavity 301.

[0117] In some embodiments of the present application, taking a plane perpendicular to the extension direction of the extension air duct 302 as a cross-section, the cross-sectional area of the second air duct 104 can remain unchanged. It can make the cold air entering the second air duct 104 enter the variable temperature chamber 102 evenly.

[0118] In some embodiments of the present application, taking a plane perpendicular to the extension direction of the extension air duct 302 as a cross-section, the cross-sectional area of the second air duct 104 can be larger than the cross-sectional area of the extension air duct 302 at the end close to the second air duct 104. It is convenient for the air in the extension air duct to enter the second air duct.

[0119] In some embodiments of the present application, taking a plane perpendicular to the extension direction of the extension air duct 302 as a cross-section, the cross-sectional area of the second air duct 104 can be smaller than the cross-sectional area of the extension air duct 302 at the end close to the second air duct 104. The cross-sectional area of the second air duct 104 can be reduced, and the volume of the variable temperature chamber 102 can be increased accordingly when the overall size of the refrigerator remains unchanged.

[0120] In some embodiments of the present application, taking a plane perpendicular to the extension direction of the extension air duct 302 as a cross-section, the cross-sectional area of the second air duct 104 can be equal to the cross-sectional area of the extension air duct 302 at the end close to the second air duct 104.

[0121] Please refer to Figures 5 - 7 , in some embodiments of the present application, the opening diameter of the air outlet end of the air cavity 301 is larger than the opening diameter of the end of the extension air duct 302 connected to the air cavity 301. When the control air door 400 is in the first state, the control air door 400 opens the air outlet end, and the air volume entering the first air duct 103 through the air cavity 301 can be significantly larger than the air volume entering the second air duct 104 through the air cavity 301 and the extension air duct 302.

[0122] Please refer to Figures 5 - 7 and Figure 9 , in some embodiments of the present application, the first end of the control air door 400 is rotatably arranged on the inner wall of the air cavity 301.

[0123] In some embodiments of the present application, the control air door 400 can move in the air cavity 301. The movement range of the control air door 400 can be limited by the inner wall surface of the control structure.

[0124] In some embodiments of the present application, the first end of the control damper 400 is located on the side of the air outlet end of the air chamber 301 away from the extended air duct 302. When the control damper 400 is in the first state and the second state, the control damper 400 does not block the end of the extended air duct 302 communicating with the air chamber 301. The extended air duct 302 is in an always-open state.

[0125] Please refer to Figures 5 - 6 and Figure 9 In some embodiments of the present application, when the control damper 400 is in the first state, the second end of the control damper 400 is close to the air inlet end of the air chamber 301.

[0126] In some embodiments of the present application, the first end of the control damper 400 can be close to the rotation axis of the control damper 400, and the second end of the control damper 400 can be far from the rotation axis of the control damper 400.

[0127] In some embodiments of the present application, when the control damper 400 is in the first state, the air inlet end and the air outlet end of the air chamber 301 are communicated. The end of the control damper 400 far from the rotation axis of the control damper 400 is close to the air inlet end of the air chamber 301, facilitating the cold air in the air chamber 301 to enter the first air duct 103.

[0128] Please refer to Figures 5 - 6 In some embodiments of the present application, when the control damper 400 is in the first state, the sealing surface 401 of the control damper 400 is arranged parallel to the connection line between the air inlet end and the air outlet end of the air chamber 301.

[0129] In some embodiments of the present application, when the control damper 400 is in the first state, the sealing surface 401 of the control damper 400 does not close the air outlet end of the air chamber 301. The cold air in the air chamber 301 can enter the first air duct 103 through the air outlet end of the air chamber 301, and the cold air passes through the first air duct 103 to cool the refrigerating chamber 101.

[0130] In some embodiments of the present application, when the control damper 400 is in the first state, the extending direction of the sealing surface 401 can be parallel to the connection line direction between the air inlet end and the air outlet end of the air chamber 301. It can reduce or avoid the blocking of the cold air in the air chamber 301 by the control damper 400, enabling most of the cold air to smoothly enter the first air duct 103, facilitating the cooling of the refrigerating chamber 101.

[0131] Please refer to Figure 7 In some embodiments of the present application, when the control damper 400 is in the second state, the second end of the control damper 400 is close to the air outlet end of the air chamber 301.

[0132] In some embodiments of the present application, when the control air damper 400 is in the second state, the air inlet end and the air outlet end of the air cavity 301 are closed. One end of the control air damper 400 away from the rotation axis of the control air damper 400 is close to the air outlet end of the air cavity 301, so that the cold air in the air cavity 301 cannot enter the first air duct 103.

[0133] Please refer to Figure 7 , in some embodiments of the present application, when the control air damper 400 is in the second state, the sealing surface 401 of the control air damper 400 closes the air outlet end of the air cavity 301.

[0134] In some embodiments of the present application, the control air damper 400 can close the air outlet end of the air cavity 301 through the sealing surface 401.

[0135] In some embodiments of the present application, after the control air damper 400 rotates around its own rotation axis, the air outlet end of the air cavity 301 can be closed through the sealing surface 401. The cold air in the air cavity 301 can enter the extension air duct 302 through the air cavity 301, and the cold air in the air cavity 301 cannot enter the first air duct 103 through the air outlet end of the air cavity 301, which is convenient for cooling the variable temperature chamber 102.

[0136] In some embodiments of the present application, the sealing surface 401 can be provided with a sealing member. The sealing member can be fixed on the sealing surface 401 to increase the firmness of the first sealing member.

[0137] In some embodiments of the present application, the sealing member can be fixed on the sealing surface 401 by means of bonding or screw connection.

[0138] In some embodiments of the present application, the sealing member can be a nitrile rubber member, a fluororubber member or a propylene rubber member, etc. The rubber material has good elasticity and sealing performance, and can effectively prevent fluid or solid particles from leaking from the adjacent mating surfaces.

[0139] In some embodiments of the present application, when the control air damper 400 is in the second state, the sealing surface 401 of the control air damper 400 closes the air outlet end of the air cavity 301 through the sealing member.

[0140] When only the refrigerating chamber 101 has a refrigeration requirement, the compressor and the blower 200 of the refrigerator are both turned on, and the control air damper 400 is in the first state, that is, the open state, which is convenient for refrigerating the refrigerating chamber 101, and the variable temperature chamber 102 hardly refrigerates.

[0141] When only the variable temperature chamber 102 has a refrigeration requirement, the compressor and the blower 200 of the refrigerator are both turned on, and the control air damper 400 is in the second state, that is, the closed state, and the refrigerating chamber 101 does not refrigerate, which is convenient for refrigerating the variable temperature chamber 102.

[0142] When there is a refrigeration demand in both the refrigerating chamber 101 and the variable-temperature chamber 102, both the compressor and the blower 200 of the refrigerator are turned on. The control air damper 400 is first in the first state, i.e., the open state, to facilitate refrigeration of the refrigerating chamber 101. After the refrigerating chamber 101 reaches the set temperature, the control air damper 400 is in the second state, i.e., the closed state, to facilitate refrigeration of the variable-temperature chamber 102.

[0143] When there is no refrigeration demand in both the refrigerating chamber 101 and the variable-temperature chamber 102, both the compressor and the blower 200 of the refrigerator are turned off, and the control air damper 400 is in the first state, i.e., the open state.

[0144] When there is a defrosting demand, the compressor is turned off, the blower 200 is turned on, the control air damper 400 is in the first state, i.e., the open state, and after defrosting is completed by blowing air, the blower 200 is turned off.

[0145] Please refer to Figures 1 - 10 This application provides a refrigerator, including a box body 100, a blower 200 and a control structure.

[0146] In some embodiments of this application, the box body 100 is provided with a refrigerating chamber 101 and a variable-temperature chamber 102 that are separated from each other; the blower 200 is communicated with the refrigerating chamber 101 through a first air duct 103, and the blower 200 is communicated with the variable-temperature chamber 102 through a second air duct 104.

[0147] In some embodiments of this application, the control structure is provided with an air cavity 301; the air inlet end of the air cavity 301 is communicated with the air outlet of the blower 200, the air outlet end of the air cavity 301 is communicated with the refrigerating chamber 101, and a movable control air damper 400 is arranged at the air outlet end of the air cavity 301; the control structure is further provided with an extended air duct 302, and the air cavity 301 is communicated with the second air duct 104 through the extended air duct 302.

[0148] In some embodiments of this application, when the blower 200 blows air to the refrigerating chamber 101 through the first air duct 103, the control air damper 400 opens the first air duct 103, and the air volume entering the first air duct 103 through the air cavity 301 is greater than the air volume entering the second air duct 104 through the air cavity 301 and the extended air duct 302.

[0149] In some embodiments of this application, when the blower 200 blows air to the variable-temperature chamber 102 through the second air duct 104, the control air damper 400 closes the first air duct 103, and the air outlet of the blower 200 blows air to the second air duct 104 through the air cavity 301 and the extended air duct 302.

[0150] The temperature control of the two temperature zones of the refrigerating chamber 101 and the variable-temperature chamber 102 can be realized through a control air damper 400, which saves components, reduces the cost of the refrigerator, has a compact structure, reduces the occupation of the effective use space of the refrigerator, and improves the volume ratio of the refrigerator.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0152] For the sake of explanation, the above description has been presented in connection with specific embodiments. However, the above exemplary discussions are not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Many modifications and variations are possible in light of the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: A box body (100) is provided with a refrigerating chamber (101) and a temperature-changing chamber (102) which are separated from each other; the box body (100) is also provided with a first air duct (103) and a second air duct (104); the first air duct (103) is connected to the refrigerating chamber (101), and the second air duct (104) is connected to the temperature-changing chamber (102); A fan (200) is arranged in the box (100); an air outlet of the fan (200) discharges air to the refrigerating chamber (101) through the first air duct (103), and an air outlet of the fan (200) discharges air to the temperature-changing chamber (102) through the second air duct (104); A control structure, wherein the control structure is provided with an air cavity (301); an air inlet end of the air cavity (301) is communicated with an air outlet of the fan (200), an air outlet end of the air cavity (301) is communicated with the refrigerating chamber (101), and a movable control damper (400) is provided at the air outlet end of the air cavity (301); the control structure is further provided with an extended air duct (302), and the air cavity (301) is communicated with the second air duct (104) through the extended air duct (302); When the control damper (400) is in the first state, the control damper (400) opens the air outlet end, and the air volume entering the first air duct (103) through the air cavity (301) is greater than the air volume entering the second air duct (104) through the air cavity (301) and the extended air duct (302); When the control damper (400) is in the second state, the control damper (400) closes the first air duct (103), and the air outlet of the fan (200) discharges air to the second air duct (104) through the air cavity (301) and the extended air duct (302).

2. The refrigerator according to claim 1, characterized in that: An angle a between a line connecting the air inlet end of the air cavity (301) and the air outlet end of the air cavity (301) and the air outlet direction of the fan (200) is smaller than an angle b between the extension direction of the extended air duct (302) and the air outlet direction of the fan (200).

3. The refrigerator according to claim 2, characterized in that: A line connecting the air inlet end of the air cavity (301) and the air outlet end of the air cavity (301) is vertically upward, and an extension direction of the extension air duct (302) is horizontally toward the inner side of the box body (100); The fan (200) is arranged below the control structure, and the air outlet direction of the fan (200) is inclined upward; in the horizontal direction, the air outlet direction of the fan (200) is toward the outside of the box (100).

4. The refrigerator according to claim 2, characterized in that: The control structure is provided with an air guide duct (303), a first end of the air guide duct (303) is connected to the air outlet of the fan (200), and a second end of the air guide duct (303) is connected to the air inlet end of the air cavity (301); An angle a formed by a line connecting the first end of the air guide duct (303) and the second end of the air guide duct (303) and a line connecting the air inlet end of the air cavity (301) and the air outlet end of the air cavity (301) is smaller than an angle b formed by a line connecting the first end of the air guide duct (303) and the second end of the air guide duct (303) and an extension direction of the extension duct (302).

5. The refrigerator according to claim 1, characterized in that: Taking a plane perpendicular to the extension direction of the extended air duct (302) as a cross section, the cross-sectional area of ​​the extended air duct (302) gradually decreases in a direction from the air cavity (301) to the second air duct (104).

6. The refrigerator according to claim 5, characterized in that: Taking a plane perpendicular to the extension direction of the extended air duct (302) as a cross section, the cross-sectional area of ​​the extended air duct (302) at one end close to the second air duct (104) is smaller than the cross-sectional area of ​​the second air duct (104).

7. The refrigerator according to claim 1, characterized in that: The opening diameter of the air outlet end of the air cavity (301) is larger than the opening diameter of one end of the extended air duct (302) connected to the air cavity (301).

8. The refrigerator according to any one of claims 1 to 7, characterized in that: The first end of the control damper (400) is rotatably disposed on the inner wall of the air cavity (301), and the first end of the control damper (400) is located on a side of the air outlet end of the air cavity (301) away from the extended air duct (302).

9. The refrigerator according to claim 8, characterized in that: When the control damper (400) is in the first state, the second end of the control damper (400) is close to the air inlet end of the air cavity (301); the sealing surface (401) of the control damper (400) is arranged parallel to a line connecting the air inlet end of the air cavity (301) and the air outlet end of the air cavity (301); When the control damper (400) is in the second state, the second end of the control damper (400) is close to the air outlet end of the air cavity (301); and the sealing surface (401) of the control damper (400) closes the air outlet end of the air cavity (301).

10. A refrigerator, characterized in that: It comprises a box body (100), a fan (200) and a control structure; The box body (100) is provided with a refrigerating chamber (101) and a temperature-changing chamber (102) which are separated from each other; the fan (200) is connected to the refrigerating chamber (101) through a first air duct (103), and the fan (200) is connected to the temperature-changing chamber (102) through a second air duct (104); The control structure is provided with an air cavity (301); the air inlet end of the air cavity (301) is in communication with the air outlet of the fan (200), the air outlet end of the air cavity (301) is in communication with the refrigerating chamber (101), and the air outlet end of the air cavity (301) is provided with a movable control damper (400); the control structure is also provided with an extended air duct (302), and the air cavity (301) is in communication with the second air duct (104) through the extended air duct (302); When the fan (200) discharges air to the refrigerating chamber (101) through the first air duct (103), the control damper (400) opens the first air duct (103), and the air volume entering the first air duct (103) through the air cavity (301) is greater than the air volume entering the second air duct (104) through the air cavity (301) and the extended air duct (302); When the fan (200) discharges air to the temperature-changing chamber (102) through the second air duct (104), the control damper (400) closes the first air duct (103), and the air outlet of the fan (200) discharges air to the second air duct (104) through the air cavity (301) and the extended air duct (302).

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