Refrigerator and defogging method therefor

Abstract

A refrigerator (10) and a defogging method therefor. The refrigerator (10) comprises a refrigerator body (1), an inner container (2), a door body (3), an air duct assembly (4), an evaporator (5), and a fan (6). The door body (3) comprises a door frame (31), a door inner liner (32), an air outlet channel (34), and a glass assembly (33). The air duct assembly (4) is provided on the outer side of the inner container (2), and a first air supply port (45) of the air duct assembly (4) is close to the air inlet end face of the air outlet channel (34) and faces the air inlet end face. The fan (6) can enable airflow to enter the air duct assembly (4) from an air return port (46) and pass through the evaporator (5) to form cooled airflow, and enable the cooled airflow to flow out from the first air supply port (45), enter the air outlet channel (34), and blow towards the inner side region of the glass assembly (33).

Description

Refrigerator and defogging method thereof

[0001] The present application claims priority to the Chinese patent application No. 202410865370.5, filed on June 28, 2024, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of refrigerators, in particular to a refrigerator and a defogging method thereof. BACKGROUND

[0003] As a common appliance in daily life, the refrigerator has been widely used. Users can store food in the refrigerator to avoid food spoilage.

[0004] SUMMARY

[0005] The present disclosure aims to at least solve one of the technical problems existing in the related art. To this end, the present disclosure proposes a refrigerator and a defogging method thereof, which can solve the problem that water mist on a transparent window of a refrigerator with the transparent window is difficult to eliminate, thereby affecting the user to view the inside of the refrigerator through the transparent window again after closing the door body.

[0006] In one aspect, a refrigerator is provided. The refrigerator includes a cabinet, an inner container, a door body, an air duct assembly, an evaporator, and a fan. The cabinet is internally provided with a containing cavity. The inner container is arranged in the containing cavity. The door body includes a door frame, a door container, an air outlet channel, and a glass assembly. The door frame is hinged to the cabinet. The door container is arranged on the inner side of the door frame. The air outlet channel is arranged at the top of the door container. The glass assembly is arranged on the side of the door frame away from the cabinet. The air duct assembly is arranged on the outer side of the inner container. A first air supply port of the air duct assembly is close to and faces the air inlet end surface of the air outlet channel. An air return port of the air duct assembly is in communication with the containing cavity. The evaporator is arranged in the air duct assembly. The fan is arranged in the air duct assembly. The fan can make the airflow enter the air duct assembly from the air return port, form cooled airflow after passing through the evaporator, and make the cooled airflow flow out of the first air supply port into the air outlet channel and blow to the inner side area of the glass assembly.

[0007] After the door body is closed, under the operation of the fan, air flows into the air return port of the air duct assembly, passes through the evaporator to form cooled air, and then the cooled air flows out of the air supply port of the air duct assembly and into the air outlet channel. Then the cooled air can blow to the inner side of the glass assembly, thereby quickly eliminating the mist on the inner side of the glass assembly and avoiding the user's observation of the inside of the refrigerator. In addition, since the air supply port is close to and faces the air inlet end of the air outlet channel, it can ensure that the cooled air blown by the fan can better flow into the air outlet channel, ensuring that sufficient cooled air flows to the inner side of the glass assembly.

[0008] In another aspect, a defrosting method of a refrigerator is provided. The refrigerator includes a cabinet, an inner container, a door body, an air duct assembly, an evaporator, and a fan. The cabinet is internally provided with a containing cavity. The inner container is arranged in the containing cavity. The door body includes a door frame, a door container, an air outlet channel, and a glass assembly. The door frame is hinged to the cabinet. The door container is arranged on the inner side of the door frame. The air outlet channel is arranged on the top of the door container. The glass assembly is arranged on the side of the door frame away from the cabinet. The air duct assembly is arranged on the outer side of the inner container. A first air supply port of the air duct assembly is close to and faces the air inlet end face of the air outlet channel. An air return port of the air duct assembly is in communication with the containing cavity. The evaporator is arranged in the air duct assembly. The fan is arranged in the air duct assembly. The defrosting method of the refrigerator includes: acquiring the temperature and humidity of the indoor environment; and controlling the operating speed and operating time of the fan according to the temperature and humidity of the indoor environment.

[0009] After the door body is closed, under the operation of the fan, air flows into the air return port of the air duct assembly, passes through the evaporator to form cooled air, and then the cooled air flows out of the air supply port of the air duct assembly and into the air outlet channel. Then the cooled air can blow to the inner side of the glass assembly, thereby quickly eliminating the mist on the inner side of the glass assembly and avoiding the user's observation of the inside of the refrigerator. In addition, since the air supply port is close to and faces the air inlet end of the air outlet channel, it can ensure that the cooled air blown by the fan can better flow into the air outlet channel, ensuring that sufficient cooled air flows to the inner side of the glass assembly. BRIEF DESCRIPTION OF DRAWINGS

[0010] FIG. 1 is a perspective view of a refrigerator according to some embodiments;

[0011] FIG. 2 is a perspective view of an inner container and a door body according to some embodiments;

[0012] FIG. 3 is a perspective view of a door body and a shelf according to some embodiments;

[0013] FIG. 4 is a structural view of a door body according to some embodiments;

[0014] FIG. 5 is a partial enlarged view of circle A in FIG. 4;

[0015] FIG. 6 is a perspective view of a door according to some embodiments;

[0016] FIG. 7 is a perspective view of a shelf according to some embodiments;

[0017] FIG. 8 is a perspective view of a liner according to some embodiments;

[0018] FIG. 9 is another perspective view of a liner according to some embodiments;

[0019] FIG. 10 is a perspective view of a duct assembly according to some embodiments;

[0020] FIG. 11 is a block diagram of a refrigerator according to some embodiments;

[0021] FIG. 12 is a flowchart of steps performed by a controller according to some embodiments;

[0022] FIG. 13 is a flowchart of steps performed by a controller according to some embodiments. DETAILED DESCRIPTION

[0023] Some embodiments of the present disclosure will be described below with reference to the accompanying drawings, which are presented for the purpose of illustration and description. It will be apparent to those of ordinary skill in the art that the described embodiments are merely some of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments provided in the present disclosure, all other embodiments obtained by those of ordinary skill in the art are within the scope of protection of the present disclosure.

[0024] Unless otherwise required by context, the term "comprise" and its other forms such as "comprises" and "comprising" are to be construed as open, inclusive, meaning that "comprising" means "including, but not limited to." In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to mean that the particular feature, structure, material, or characteristic being described in connection with such embodiment or example includes at least one embodiment or example of the disclosure. The illustrative representations of the above terms are not necessarily meant to indicate the same embodiment or example. In addition, the particular features, structures, materials, or characteristics described can be included in any suitable way in one or more embodiments or examples.

[0025] The terms "first", "second", etc. are used herein only to describe one ordinal number, and do not necessarily indicate or imply a relative importance or an implied recitation of a number of times a particular feature is recited. Thus, these features are not necessarily limited to the above-stated features. In the description of the embodiments of the present disclosure, the meaning of "a plurality" is, unless otherwise specified, two or more.

[0026] In describing some embodiments, the use of "connection" and / or "coupling" and / or "connected" and / or "coupling" and / or "coupled" along with other descriptions may be used. The term "connection" and / or "coupling" and / or "connected" and / or "coupling" and / or "coupled" is used broadly and encompass both direct and indirect connections, couplings and / or any other suitable connections and / or couplings, combinations and / or the like, where appropriate and / or as would be accepted by one of ordinary skill in the art. The embodiments disclosed herein are not necessarily limited to the context in which they are described.

[0027] "A, B, and C at least one of" has the same meaning as "at least one of A, B, or C", including the combinations of A, B, and C: only A, only B, only C, A and B, A and C, B and C, and A and B and C.

[0028] The use of "adapted to" or "configured to" herein is meant "open and inclusive language" that does not foreclose devices adapted to or configured to perform additional tasks or steps.

[0029] As used herein, "about", "approximately", or "around" includes the recited value and the average value within an acceptable range of deviation from the recited value, as determined by one of ordinary skill in the art considering the measurement in question and the error in measuring the particular quantity (i.e., the limitations of the measurement system).

[0030] As used herein, "parallel", "perpendicular", and "equal" include the recited condition and conditions that approximate the recited condition, within an acceptable range of deviation, as determined by one of ordinary skill in the art considering the measurement in question and the error in measuring the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and near parallel, where near parallel can have an acceptable range of deviation of, for example, within 5°; "perpendicular" includes absolute perpendicular and near perpendicular, where near perpendicular can also have an acceptable range of deviation of, for example, within 5°. "Equal" includes absolute equality and near equality, where near equality can have an acceptable range of deviation of, for example, a difference between the two that is less than or equal to 5% of either.

[0031] Generally, for the refrigerator with the transparent window arranged on the door body, the user can observe the inside condition of the refrigerator through the transparent window. Since the inner layer glass of the transparent window has a temperature of about 4 degrees, which is much lower than the indoor temperature, when the door body is opened, the air with high temperature and humidity in the room will quickly form a layer of water mist on the inner layer glass of the transparent window. The higher the temperature and humidity in the room, the more serious the water mist. After the door body is closed, the water mist needs several minutes to several tens of minutes to be eliminated, which seriously affects the user to observe the inside condition of the refrigerator through the transparent window again after the door body is closed.

[0032] In some schemes, the water mist is removed by installing a heating fan above the transparent window to heat the water mist. However, this not only needs to separately arrange the heating fan, but also increases the cost and is not conducive to the appearance of the refrigerator.

[0033] In other schemes, a plurality of centrifugal fans and a plurality of heat dissipation components are arranged in the cabinet of the refrigerator, and the heat of the plurality of heat dissipation components is guided and discharged to the transparent window to remove the water mist. However, this not only needs to separately arrange the plurality of centrifugal fans and the plurality of heat dissipation components, but also occupies the internal space of the cabinet, increases the cost, and obviously increases the energy consumption.

[0034] In yet other schemes, a fan and an air duct are arranged at the top end of the inside of the cabinet, and when the door body is in the closed state, the fan in the air duct continuously sends air to the inside of the door body to achieve the function of removing the water mist. However, this way is mainly applied to display cabinets, and the continuous air supply of the fan will make the temperature of the door body too low, which may produce dew drops and the like.

[0035] In order to solve the above problems, some embodiments of the present disclosure provide a refrigerator and a defrosting method thereof. The refrigerator comprises an air outlet channel arranged above an inner container of a door body. A fan can make airflow enter the air duct assembly from the air return port of the air duct assembly, and form cooled airflow after passing through an evaporator. The cooled airflow flows out from the air supply port of the air duct assembly, enters the air outlet channel, and blows to the inside area of the glass assembly. In this way, the airflow blown by the air outlet channel can blow to the inside of the glass assembly, so as to quickly remove the water mist on the inside of the glass assembly and avoid affecting the user's observation of the inside condition of the refrigerator.

[0036] For the convenience of description, without special instructions, the present disclosure refers to the state of the refrigerator 10 in use as the reference for the orientation expressions of up, down, left, right, front, and back. The side of the refrigerator 10 facing the user in use is the front side, and the side opposite to it is the back side. The height direction of the refrigerator 10 is the up-down direction. The left-right direction of the refrigerator 10 is opposite to the left-right direction of the user, for example, the left side of the refrigerator 10 is the right side of the user, and the right side of the refrigerator 10 is the left side of the user.

[0037] As shown in FIG. 1, the refrigerator 10 in some embodiments of the present disclosure includes a cabinet 1. The cabinet 1 is used to form the overall appearance of the refrigerator 10. The cabinet 1 is generally cuboid-shaped. The top of the cabinet 1 and the bottom of the cabinet 1 are opposite ends. The direction from the top of the cabinet 1 to the bottom of the cabinet 1 is parallel to the height direction of the refrigerator 10 (e.g., the up-down direction in FIG. 1). The left side of the cabinet 1 and the right side of the cabinet 1 are opposite sides. The direction from the left side of the cabinet 1 to the right side of the cabinet 1 is parallel to the width direction of the refrigerator 10 (e.g., the left-right direction in FIG. 1). The front side of the cabinet 1 and the back side of the cabinet 1 are opposite sides. The direction from the front side of the cabinet 1 to the back side of the cabinet 1 is parallel to the thickness direction of the refrigerator 10 (e.g., the front-back direction in FIG. 1).

[0038] As shown in FIGS. 1, 8, and 9, the refrigerator 10 further includes a refrigerating chamber 21. The refrigerator 10 further includes a freezing chamber. The interior of the cabinet 1 is provided with the refrigerating chamber 21 and the freezing chamber. The refrigerating chamber 21 and the freezing chamber are respectively used to place articles. The refrigerating chamber 21 and the freezing chamber are provided with openings. The openings are open toward the front side of the cabinet 1. The ambient temperature in the refrigerating chamber 21 is a refrigerating temperature. The ambient temperature in the freezing chamber is a freezing temperature. For example, the refrigerating temperature is 0° to 10°. The freezing temperature is -18° to -24°.

[0039] As shown in FIGS. 1, 8, and 9, the refrigerator 10 further includes a door body 3. The door body 3 is straight-plate-shaped and is arranged at the front side of the cabinet 1. The door body 3 is connected to the cabinet 1 in a manner that can be opened and closed, so as to open or close the refrigerating chamber 21 and the freezing chamber.

[0040] It can be understood that the refrigerator 10 further includes a refrigeration system. The refrigeration system is installed in the cabinet 1. The refrigeration system is used to provide cold air to the refrigerating chamber 21 and the freezing chamber. As shown in FIG. 10, the refrigeration system refers to a closed system composed of a compressor, an evaporator 5, a cooler, a drying filter, a return air pipe, a throttling device, and other components, and a refrigerant. Any component is distributed at different positions of the cabinet 1 according to the structural characteristics of the component, so as to meet the requirements of the corresponding functions of the component.

[0041] The working process of the refrigeration system mainly includes a compression process, a cooling process, a throttling process, and an evaporation process.

[0042] The compression process is as follows. After the power cord of the refrigerator 10 is plugged in, the contacts of the temperature controller are turned on, and the compressor starts to work. The low-temperature and low-pressure refrigerant from the evaporator 5 is sucked into the compressor and is compressed into high-temperature and high-pressure refrigerant gas after the action of the compressor, and is then discharged into the cooler.

[0043] The cooling process is as follows. The high-temperature and high-pressure refrigerant gas exchanges heat with the external environment through the cooler, the temperature drops, and is cooled into saturated steam of refrigerant at normal temperature and high pressure, and is further cooled into saturated liquid of refrigerant.

[0044] The throttling process is as follows: the cooled refrigerant saturated liquid flows into the throttling device after being filtered by the drying filter to remove water and impurities, and is throttled and depressurized by the throttling device, and the refrigerant becomes a wet vapor at normal temperature and low pressure.

[0045] The evaporation process is as follows: the wet vapor at normal temperature and low pressure enters the evaporator 5, starts to absorb heat to vaporize, reduces the temperature of the evaporator 5 and the surrounding of the evaporator 5, realizes refrigeration, and makes the refrigerant become a low-temperature and low-pressure gas.

[0046] The refrigerant coming out of the evaporator 5 returns to the compressor, and the above process is repeated, and the energy conversion is carried out through the state change of the refrigerant, the heat in the refrigerator 10 is transferred to the air outside the box, thereby realizing the refrigeration cycle of the refrigerator 10.

[0047] In some embodiments, the refrigerator 10 further comprises an air supply system. The air supply system is installed in the cabinet 1 and is used to provide power for the cold air flow. As shown in FIG. 10, the air supply system comprises a fan 6, and further comprises a flow guide channel.

[0048] In some embodiments, the air inlet end of the flow guide channel is arranged close to the fan 6, and the air outlet end of the flow guide channel is arranged away from the fan 6.

[0049] In some embodiments, the air outlet end of the flow guide channel is arranged close to the fan 6, and the air inlet end of the flow guide channel is arranged away from the fan 6. The fan 6 drives the air in the flow guide channel, and the evaporator 5 is correspondingly arranged in the flow guide channel. The cold air cooled by the evaporator 5 flows along the flow guide channel under the driving of the fan 6, and finally enters the refrigerating compartment 21 and the freezing compartment to refrigerate the refrigerating compartment 21 and the freezing compartment.

[0050] In some embodiments, the cabinet 1 is provided with a containing cavity.

[0051] In some embodiments, as shown in FIGS. 1, 8 and 9, the refrigerator 10 further comprises an inner container 2. The inner container 2 is arranged in the containing cavity, and the inner container 2 is provided with a refrigerating compartment 21.

[0052] In some embodiments, as shown in FIGS. 1 to 3, the refrigerator 10 further comprises a door body 3. The door body 3 comprises a door frame 31, and the door frame 31 is hinged to the cabinet 1. The door body 3 further comprises a door container 32. The door container 32 is arranged on the inner side of the door frame 31. The door body 3 further comprises a glass assembly 33, and the glass assembly 33 is arranged on the side (e.g., the front side) of the door frame 31 away from the cabinet 1. As shown in FIGS. 4 to 6, the door body 3 further comprises an air outlet passage 34, and the top of the door container 32 is provided with the air outlet passage 34.

[0053] In some embodiments, as shown in FIG. 1 and FIG. 10, the refrigerator 10 further comprises an air duct assembly 4. The air duct assembly 4 is arranged outside the inner container 2, and the air duct assembly 4 comprises a first air outlet 45. The first air outlet 45 is in communication with the storage cavity, and the first air outlet 45 is close to and faces the air inlet end face of the air outlet channel 34. The air inlet end face can refer to the end face of the air outlet channel close to the top of the inner container 2, and the air inlet end face can be annular.

[0054] In some embodiments, as shown in FIG. 1 and FIG. 10, the air duct assembly 4 further comprises at least one air return port 46 in communication with the storage cavity.

[0055] In some embodiments, as shown in FIG. 10, the refrigerator 10 further comprises an evaporator 5. The evaporator 5 is arranged in the air duct assembly 4.

[0056] In some embodiments, as shown in FIG. 10, the refrigerator 10 further comprises a fan 6. The fan 6 is arranged in the air duct assembly 4.

[0057] Under the action of the fan 6, the airflow enters from the air return port 46, passes through the evaporator 5 to form a cooled airflow, and then the cooled airflow flows out from the first air outlet 45 and enters the air outlet channel 34, and then the cooled airflow blows to the inner side area of the glass assembly 33.

[0058] In some embodiments of the present disclosure, when the user uses the refrigerator 10, it is necessary to open the door body 3 to access the goods. After the door body 3 is opened, due to the low temperature inside the glass assembly 33, the air with high temperature and high humidity in the room will quickly condense into water mist on the inner side of the glass assembly 33, affecting the user's observation of the inside of the refrigerator 10.

[0059] In this case, after the door body 3 is closed, under the operation of the fan 6, the airflow enters from the air return port 46, passes through the evaporator 5 to form a cooled airflow, and then the cooled airflow flows out from the first air outlet 45 and enters the air outlet channel 34, and then the cooled airflow blows to the inner side area of the glass assembly 33, thereby quickly eliminating the water mist on the inner side of the glass assembly 33, avoiding affecting the user's observation of the inside of the refrigerator 10. Moreover, since the first air outlet 45 is close to and faces the air inlet end of the air outlet channel 34, it can ensure that the cooled airflow blown by the fan 6 flows into the air outlet channel 34, and ensure that sufficient cooled airflow blows to the inner side area of the glass assembly 33.

[0060] In some embodiments of the present disclosure, the end of the air outlet end surface of the air outlet passage 34 closer to the glass assembly 33 is farther away from the bottom wall of the inner container 2 than the end of the air outlet end surface farther away from the glass assembly 33, so that the cooled air flow can directly blow to the inner side of the glass assembly 33 to quickly eliminate the water mist. The air outlet end surface can refer to the end surface of the air outlet passage closer to the bottom of the inner container 2, and the air outlet end surface can be annular.

[0061] In some embodiments, the air outlet end of the air outlet passage 34 can also be vertically (e.g., parallel to the up-down direction of the refrigerator 10) downward. The air outlet end surface is parallel to the horizontal plane, and the air outlet end surface is close to the inner side of the glass assembly 33, so that the cooled air flow can also blow to the inner side of the glass assembly 33 when blowing downward to also eliminate the water mist on the inner side of the glass assembly 33.

[0062] In some embodiments, the air outlet passage 34 can be a pipe, and the air outlet end of the air outlet passage is directed to the glass assembly 33 along the thickness direction of the refrigerator 10, and the air outlet end is closer to the glass assembly 33 than the air inlet end of the air outlet passage 34, so that the cooled air flow can directly blow to the inner side of the glass assembly 33 to quickly eliminate the water mist.

[0063] In some embodiments, the air outlet passage 34 can be a pipe, and the extension direction of the air outlet passage 34 is parallel to the height direction of the refrigerator 10, and the air outlet end of the air outlet passage 34 is close to the inner side of the glass assembly 33, so that the cooled air flow can also blow to the inner side of the glass assembly 33 when blowing downward to also eliminate the water mist on the inner side of the glass assembly 33.

[0064] In some embodiments, as shown in FIG. 4, the glass assembly 33 includes a frame 331, and the glass assembly 33 further includes a first glass piece 332 (outer layer glass), and the glass assembly 33 further includes a second glass piece 333 (middle layer glass). The second glass piece 333 is located on the side of the first glass piece 332 closer to the cabinet 1, and has a gap with the first glass piece 332. The glass assembly 33 further includes a third glass piece 334 (inner layer glass). The third glass piece 334 is located on the side of the second glass piece 333 closer to the cabinet 1, and has a gap with the second glass piece 333. The first glass piece 332, the second glass piece 333, and the third glass piece 334 are respectively sealed and connected to the inner side of the frame 331 by sealing glue, and argon is filled between the first glass piece 332 and the second glass piece 333, and argon is also filled between the second glass piece 333 and the third glass piece 334 to play a role of heat insulation and heat preservation.

[0065] In some embodiments, as shown in FIGS. 3 and 4, the refrigerator 10 further includes at least one shelf 7, and the at least one shelf 7 is arranged between the two sides in the door container 32, and a gap is left between the at least one shelf 7 and the glass assembly 33 for the air flow to pass through.

[0066] By connecting the shelf 7 between the inner container 2 or the door container 32 of the door body 3, the storage capacity of the refrigerator 10 can be improved. Then, in order to prevent the shelf 7 from blocking the airflow blown by the air outlet channel 34 from blowing to the inner side of the third glass piece 334 of the glass assembly 33, a gap is provided between the shelf 7 and the third glass piece 334, so that the airflow blown by the air outlet channel 34 can smoothly blow to the inner side of the glass assembly 33, so that the airflow blows from top to bottom through the glass assembly 33, thereby quickly removing the water mist on the inner side of the glass of the glass assembly 33, avoiding affecting the user's observation of the internal situation of the refrigerator 10.

[0067] In some embodiments, the at least one shelf 7 includes a plurality of shelves 7. The plurality of shelves 7 are arranged along the height direction of the refrigerator 10, and a gap is provided between adjacent two shelves 7 to further improve the storage capacity of the refrigerator 10. Moreover, a distance is provided between the uppermost shelf 7 and the top of the door container 32, so as to avoid that the plurality of shelves 7 block the air outlet end of the air outlet channel 34. The uppermost shelf 7 can refer to the shelf 7 closest to the air outlet channel 34 along the height direction of the refrigerator 10.

[0068] Since the heat insulation of the door body 3 provided with the glass assembly 33 is poorer than that of the conventional door body made of foaming material, the temperature inside the door body 3 will be higher, and the refrigeration effect of the food on the shelf 7 will be affected. Therefore, the fan 6 blows the cooled airflow to the inner side of the glass assembly 33 of the door body 3, which can reduce the temperature inside the door body 3 to ensure the refrigeration effect of the food on the shelf 7.

[0069] In some embodiments, as shown in FIG. 7, the shelf 7 includes a shelf body; the shelf 7 further includes a plurality of first mounting portions 71. The two sides of the shelf body are provided with the first mounting portions 71, and the first mounting portions 71 extend downward to the bottom of the shelf body along the height direction of the refrigerator 10. As shown in FIG. 6, the door container 32 includes a door container body; the door container 32 further includes a plurality of second mounting portions 35. The plurality of second mounting portions 35 are provided on the two sides of the door container body along the length direction of the refrigerator 10, and correspond to the plurality of first mounting portions 71. Any one of the plurality of second mounting portions 35 is clamped into the corresponding first mounting portion 71. For example, the first mounting portion 71 is a groove, and the second mounting portion 35 is a protrusion, and the protrusions on the two sides of the door container 32 are respectively clamped into the grooves on the two sides of the shelf 7.

[0070] In this way, the shelf 7 can be conveniently installed and the stability of the installation of the shelf 7 can be ensured, so that the shelf 7 can be prevented from being installed by abutting against the glass assembly 33 to ensure the stability of the position of the shelf 7, and the shelf 7 can also be prevented from being installed by arranging a connecting member between the shelf 7 and the glass assembly 33 to ensure the stability of the position of the shelf 7. Therefore, the blocking structure between the shelf 7 and the glass assembly 33 can be avoided, so that the air flow can smoothly blow from top to bottom inside the glass assembly 33 to quickly perform the defogging work.

[0071] In some embodiments, the first mounting portion 71 is trapezoidal, and the second mounting portion 35 is also trapezoidal, so that after the second mounting portion 35 enters the first mounting portion 71, the stability of the position of the shelf 7 can be ensured, and the load-bearing capacity of the shelf 7 can be improved.

[0072] In some embodiments, as shown in FIG. 6, the door bin 32 further comprises a guide surface 36. The bottom (for example, the inner bottom wall) of the inner side of the door bin body is provided with the guide surface 36. The end of the guide surface 36 close to the glass assembly 33 is closer to the top of the door bin 2 than the end of the guide surface 36 away from the glass assembly 33. The end of the guide surface 36 close to the glass assembly 33 to the end away from the glass assembly 33 is arranged to be inclined downward, and the air return port 46 is arranged opposite to the lower region of the door bin 32. For example, in the height direction of the refrigerator 10, the height of the air return port 46 is substantially the same as the height of the lower region of the door bin 32.

[0073] In some embodiments, the air return port 46 is located in the rear end region of the refrigerating chamber 21, and the air return port 46 is directly opposite to the lower region of the door bin 32. In this way, by forming the inclined guide surface 36 on the bottom of the inner side of the door bin body, when the air flow blows downward inside the glass assembly 33, the air flow can flow toward the inside of the refrigerating chamber 21 under the action of the guide surface 36, and finally directly blows into the air return port 46, so as to circulate the air flow in the refrigerating chamber 21.

[0074] In some embodiments, as shown in FIGS. 8 and 10, the air duct assembly 4 comprises a partition plate 41. The partition plate 41 is arranged in the refrigerating chamber 21, and the four sides of the partition plate 41 are correspondingly attached to the top wall, the side wall and the bottom wall of the refrigerating chamber 21. The air duct assembly 4 further comprises a heat exchange cavity 44. The heat exchange cavity 44 is formed between the partition plate 41 and the rear wall of the refrigerating chamber 21.

[0075] In some embodiments, as shown in FIG. 10, the at least one air return port 46 comprises a plurality of air return ports 46. The lower region of the plurality of partition plates 41 is provided with the plurality of air return ports 46.

[0076] In some embodiments, as shown in FIG. 10, the air duct assembly 4 further comprises a shell 42. The evaporator 5 and the shell 42 are respectively arranged in the heat exchange cavity 44. The air duct assembly 4 further comprises an air inlet and a first air outlet. The shell 42 is provided with the air inlet and the first air outlet, and the fan 6 is installed at the air inlet.

[0077] As shown in FIG. 10, the air duct assembly 4 further comprises at least one air duct 43. One end of the air duct 43 is in communication with the first air outlet, and the second end of the air duct 43 extends to the front region of the inner container 2.

[0078] As shown in FIG. 10, the air duct 43 is formed with a first air inlet at the end away from the shell 42.

[0079] In some embodiments, as shown in FIGS. 8 and 9, the inner container 2 comprises an inner container body; the inner container 2 further comprises a second air inlet 450 in the inner container body. The second air inlet 450 is arranged corresponding to the first air inlet 45. For example, the second air inlet 450 is butted against the first air inlet 45 to enable the cold air to enter the refrigerating chamber 21 through the first air inlet 45 and the second air inlet 450 in sequence.

[0080] In some embodiments of the present disclosure, by forming a heat exchange cavity 44 between the partition plate 41 and the rear wall of the refrigerating chamber 21 and installing the evaporator 5 in the heat exchange cavity 44, the air flow first passes through the evaporator 5 to cool the air flow after the air flow enters the heat exchange cavity 44 through the air return inlet 46, and then the cooled air flow is sucked into the shell 42 by the fan 6, and then enters the air duct 43 and is blown into the air outlet channel 34 through the first air inlet 45, and finally, the cooled air flow is blown to the inner side of the glass assembly 33, so that the water mist on the inner side of the glass assembly 33 can be quickly eliminated, and the user can clearly observe the situation inside the refrigerator through the glass assembly 33.

[0081] In some embodiments, the air duct 43 is located between the cabinet 1 and the inner container 2, the first end of the air duct 43 penetrates into the heat exchange cavity 44 and is in communication with the first air outlet, and the second end of the air duct 43 extends to the region of the inner container 2 close to the door body and penetrates into the refrigerating chamber 21.

[0082] By arranging the air duct 43 between the cabinet 1 and the inner container 2, the air duct 43 is located outside the refrigerating chamber 21, so that the air duct 43 can avoid occupying the space in the refrigerating chamber 21 and affecting the storage in the refrigerating chamber 21. For example, the air duct 43 can avoid blocking the stored articles when the articles are stored.

[0083] In some embodiments, the end (e.g., the second end) of the air duct 43 away from the shell 42 is flush with the top wall of the refrigerating chamber 21, so that the first air inlet 45 is flush with the top wall of the refrigerating chamber 21, thereby avoiding the air duct 43 extending into the refrigerating chamber 21 and occupying the space in the refrigerating chamber 21, and also avoiding the air duct 43 blocking the stored articles, and ensuring the practicability of the refrigerator 10.

[0084] In some embodiments, the refrigerator 10 further comprises a refrigeration air duct. The refrigeration air duct is arranged at the back plate of the cabinet 1, and at least one air pipe 43 can be drawn from the top end of the refrigeration air duct close to the interior of the cabinet 1 to deliver cold air to the inner side of the glass assembly 33.

[0085] In some embodiments, as shown in FIG. 8, the air duct assembly 4 further comprises a plurality of second air outlets 421. The shell 42 is attached to and fixed on the side of the partition plate 41 away from the door body 3, and the plurality of second air outlets 421 are arranged on the side wall of the shell 42 attached to the partition plate 41 and along the height direction of the refrigerator 10. The partition plate 41 is provided with a relief opening at a position corresponding to the second air outlet 421, for example, the position of the relief opening is aligned with the position of the second air outlet 421.

[0086] By arranging the plurality of second air outlets 421 on the side wall of the shell 42 attached to the partition plate 41 and along the height direction of the refrigerator 10, the cooled air flow can be discharged at different heights in the refrigeration chamber 21, thereby increasing the uniformity of the temperature in the refrigeration chamber 21. In addition, by attaching and fixing the shell 42 to the side of the partition plate 41 away from the door body 3, when the cooled air flow is discharged into the refrigeration chamber 21 through the second air outlet 421, the use of a pipe can be avoided, and the cooled air flow can be directly discharged into the refrigeration chamber 21 through the second air outlet 421 and the relief opening.

[0087] In some embodiments, the air pipe 43 is flat, and the air outlet channel 34 is located in the middle region of the top of the door liner 32 and extends along the width direction of the door liner 32.

[0088] It should be noted that the air pipe 43 is flat, which can reduce the height space occupied by the air pipe 43 between the cabinet 1 and the liner 2, and is conducive to avoiding increasing the size of the refrigerator 10. In addition, the air outlet channel 34 extends along the width direction of the door liner 32, which can make the shape of the cross section of the air outlet channel 34 and the shape of the cross section of the air pipe 43 substantially equal, thereby facilitating the flow of cooled air into the air outlet channel 34 and enabling the air flow to blow to more positions of the glass assembly 33 along the left-right direction of the refrigerator 10, so as to increase the area of defogging and ensure that the user can clearly and easily view the inside of the refrigerator 10 through the glass assembly 33.

[0089] In some embodiments, the at least one air pipe 43 comprises a plurality of air pipes 43, and the plurality of air pipes 43 at least satisfy one of the following: arranged along the height direction of the refrigerator 10, or arranged along the length direction of the refrigerator 10.

[0090] In some embodiments, as shown in FIG. 11, the refrigerator 10 further comprises a temperature and humidity sensor 111. The temperature and humidity sensor 111 is used to detect the temperature and humidity in the room. The refrigerator 10 further comprises a controller 112 connected with the temperature and humidity sensor 111.

[0091] In some embodiments, the controller 112 is configured to perform step 101 and step 102, as shown in FIG. 12.

[0092] In step 101, the temperature and humidity of the indoor environment are obtained.

[0093] For example, the controller 112 obtains the temperature and humidity of the indoor environment detected by the temperature and humidity sensor 111.

[0094] In step 102, the operating speed and operating time of the fan 6 are controlled according to the temperature and humidity of the indoor environment.

[0095] In some embodiments, the fan 6 has a first gear and a second gear, and the rotating speed corresponding to the first gear is greater than the rotating speed corresponding to the second gear, as shown in FIG. 13, the controller 112 is further configured to perform step 103 and step 104.

[0096] In step 103, when the door body 3 is opened and the time for which the door body 3 is closed is less than a preset time, the fan 6 is controlled to operate in the second gear.

[0097] In step 104, when the time for which the door body 3 is closed is greater than or equal to the preset time, the fan 6 is controlled to operate in the first gear.

[0098] Some embodiments of the present disclosure also provide a defogging method of a refrigerator, which is applied to the refrigerator 10 described above. The cabinet 1 of the refrigerator 10 is provided with a containing cavity, the inner container 2 is arranged in the containing cavity, and the refrigeration chamber 21 is arranged in the inner container 2. The door body 3 includes a door frame 31, and further includes a door container 32 and a glass assembly 33. The door frame 31 is hinged to the cabinet 1, the door container 32 is arranged on the inner side of the door frame 31, the glass assembly 33 is arranged on the front side of the door frame 31, and the top of the door container 32 is provided with an air outlet passage 34. The air duct assembly 4 is arranged in the inner container 2, and includes a first air supply port 45 and an air return port 46, which are respectively communicated with the containing cavity. The first air supply port 45 is close to and faces the air inlet end of the air outlet passage 34. The evaporator 5 is arranged in the air duct assembly 4, and the fan 6 is arranged in the air duct assembly 4. The refrigerator 10 further includes a temperature and humidity sensor 111.

[0099] In some embodiments, the defogging method of the refrigerator includes step 101 and step 102, as shown in FIG. 12.

[0100] In step 101, the temperature and humidity of the indoor environment are obtained.

[0101] For example, the temperature and humidity of the indoor environment are obtained by the temperature and humidity sensor.

[0102] In step 102, the running speed and running time of the fan 6 are controlled according to the temperature and humidity in the room.

[0103] Since the door body 3 provided with the glass assembly 33 has relatively poor heat insulation performance compared with a conventional foamed door body, the temperature of the inner side area of the door body 3 is relatively high. Therefore, before the door body 3 is opened, the fan 6 is controlled to be in the second gear to deliver cooled air flow to the glass assembly 33 and the refrigerating chamber 21, so as to avoid the temperature of the glass assembly 33 area and the inner side area of the door body 3 from being too high.

[0104] Then, when the user opens the door body 3, since the inner layer temperature of the glass assembly 33 is lower than the room temperature, the air with high temperature and humidity in the room will quickly condense into water mist on the inner side surface of the glass assembly 33, which will affect the user to see the inside of the refrigerator through the glass assembly 33 after the door body 3 is closed.

[0105] In this case, after the door body 3 is closed, the fan 6 is in the first gear to increase the air flow to the inner side of the glass assembly 33, so as to quickly eliminate the water mist on the inner side of the glass assembly 33. In addition, the temperature and humidity in the room can be detected by the temperature and humidity sensor, which can be arranged outside the door body 3 or outside the cabinet 1. Since the higher the temperature and humidity of the air in the room, the more water mist on the inner side of the glass assembly 33, the running speed and running time of the fan 6 can be controlled by judging the temperature and humidity in the room. When the temperature and humidity in the room are higher, the running speed of the fan 6 is higher and the running time is longer, so as to quickly eliminate the water mist on the inner side of the glass assembly 33.

[0106] It should be noted that any one of the technical solutions disclosed in the present disclosure can solve one or more of the above technical problems and achieve certain disclosed purposes; multiple technical disclosures can be combined into one overall scheme to solve one or more of the above technical problems and achieve certain disclosed purposes; or part of the technical disclosures can be combined into one overall scheme, and related technologies and degraded schemes can be used, but the degraded trend can be compensated by the technical disclosure means, and the overall technical problems and the disclosed purposes can be solved to a certain extent; each technical disclosure is combined into a complete technical scheme, which constitutes an organic and indivisible overall scheme, and solves the technical problems and achieves certain disclosed purposes.

[0107] Any technical disclosure in the present disclosure and the recombination of multiple technical disclosures can form a complete technical scheme, and can solve one or more of the above technical problems and achieve the disclosed purposes, which belongs to the content of the present disclosure and is directly and without doubt determined according to the content of the present disclosure.

[0108] Those skilled in the art will appreciate that the scope of the disclosure is not limited to the above-described specific embodiments, and that certain elements of the embodiments can be modified and replaced without departing from the spirit of the disclosure. The scope of the disclosure is limited by the claims appended hereto.

Claims

1. A refrigerator, comprising: The box body has a receiving cavity inside; The inner liner is located within the receiving cavity; The door body includes: The door frame is hinged to the box body; The door insert is located inside the door frame; An air outlet duct is located at the top of the door liner; and A glass assembly is located on the side of the door frame away from the housing. An air duct assembly is located on the outside of the inner liner. The first air outlet of the air duct assembly is close to the air inlet end face of the air outlet channel and faces the air inlet end face. The return air outlet of the air duct assembly is connected to the receiving cavity. An evaporator is disposed within the aforementioned air duct assembly; and The fan is located within the air duct assembly; The fan allows airflow to enter the air duct assembly from the return air inlet, and after passing through the evaporator, form a cooled airflow. The cooled airflow then flows out from the first air outlet, enters the air outlet channel, and is blown towards the inner area of ​​the glass assembly.

2. The refrigerator according to claim 1, further comprising at least one shelf disposed between the two side walls inside the door liner, and a gap for airflow to pass through is provided between the at least one shelf and the glass assembly.

3. The refrigerator according to claim 2, wherein, Any of the at least one shelf includes: The shelf itself; and Multiple first mounting parts are provided on both sides of the shelf body and extend along the height direction of the refrigerator to the bottom of the shelf body; The door frame includes: The portal vein itself; and Multiple second mounting portions are provided on both sides of the refrigerator along the length direction inside the door body, and correspond to the multiple first mounting portions; Each of the plurality of second mounting parts is inserted into a corresponding first mounting part.

4. The refrigerator according to claim 3, wherein, The inner contours of the plurality of first mounting parts are trapezoidal, and the outer contours of the plurality of second mounting parts are trapezoidal.

5. The refrigerator according to any one of claims 2 to 4, wherein, The at least one shelf includes a plurality of shelves arranged along the height direction of the refrigerator, and there is a gap between two adjacent shelves; wherein, along the height direction of the refrigerator, the shelf closest to the air outlet duct is at a distance from the top of the door liner.

6. The refrigerator according to any one of claims 1 to 5, wherein, The door frame also includes a door frame body and a guide surface; the guide surface is located on the inner bottom wall of the door frame body; the end of the guide surface closer to the glass assembly is closer to the top of the door frame than the end of the guide surface farther from the glass assembly.

7. The refrigerator according to claim 6, wherein, The return air vent is positioned opposite to the lower area of ​​the door liner.

8. The refrigerator according to any one of claims 1 to 7, wherein, The air duct assembly includes: A partition is disposed inside the inner liner, and a heat exchange cavity is formed between the partition and the rear wall of the inner liner. The return air vent is located in the lower region of the partition. The housing, the evaporator, and the housing are respectively disposed within the heat exchange chamber, and the fan is installed at the air inlet of the housing; and At least one duct, wherein the first end of any one of the at least one ducts is connected to the first exhaust port of the housing, and the second end of any one duct extends to the area of ​​the inner liner near the door; the second end of any one duct forms the first air supply port, and the second end of any one duct is away from the housing.

9. The refrigerator according to claim 8, wherein, The air duct is located between the housing and the inner liner; the first end of the air duct is located in the heat exchange chamber and communicates with the first exhaust port; the second end of the air duct extends to the area of ​​the inner liner near the door and is located inside the inner liner.

10. The refrigerator according to claim 8 or 9, wherein, The inner liner includes: Inner liner body; and The second air outlet is located on the inner liner body and is connected to the first air outlet.

11. The refrigerator according to any one of claims 8 to 10, wherein, The second end of any one of the air ducts is flush with the top wall of the inner liner.

12. The refrigerator according to any one of claims 8 to 11, wherein, The housing is attached to the side of the partition away from the door and is fixedly connected to the partition; the side wall of the housing attached to the partition is provided with a plurality of second air vents along the height direction of the refrigerator, and the partition is provided with a plurality of clearance openings corresponding to the positions of the plurality of second air vents.

13. The refrigerator according to any one of claims 8 to 12, wherein, Each of the air ducts is flat and extends along the length of the refrigerator, with the air outlet located in the middle area at the top of the door liner.

14. The refrigerator according to any one of claims 8 to 13, wherein, The at least one air duct includes multiple air ducts, and the multiple air ducts satisfy at least one of the following: they are arranged along the height direction of the refrigerator, or along the length direction of the refrigerator.

15. The refrigerator according to any one of claims 1 to 14, wherein, The end of the air outlet channel closer to the glass assembly is further away from the bottom wall of the inner liner than the end of the air outlet channel further away from the glass assembly.

16. The refrigerator according to any one of claims 1 to 14, wherein, The air outlet end face of the air outlet channel is arranged parallel to the horizontal plane, and the air outlet end face is close to the inner side of the glass assembly.

17. The refrigerator according to any one of claims 1 to 16, wherein, The glass assembly includes: Frame; First glass component; The second glass element is located on the side of the first glass element closer to the housing, and is spaced apart from the first glass element; and The third glass element is located on the side of the second glass element closer to the housing and is spaced apart from the second glass element.

18. The refrigerator according to claim 17, wherein, Argon gas is filled between the second glass component and the first glass component, and argon gas is filled between the third glass component and the second glass component.

19. The refrigerator according to any one of claims 1 to 18, further comprising: Temperature and humidity sensors; and The controller, connected to a temperature and humidity sensor, is configured as follows: Obtain indoor temperature and humidity; and The operating speed and operating time of the fan are controlled according to the indoor temperature and humidity.

20. A method for defrosting a refrigerator, wherein, The refrigerator includes: The box body has a receiving cavity inside; The inner liner is located within the receiving cavity; The door body includes: The door frame is hinged to the box body; The door insert is located inside the door frame; An air outlet duct is located at the top of the door liner; and A glass assembly is located on the side of the door frame away from the housing. An air duct assembly is located on the outside of the inner liner. The first air outlet of the air duct assembly is close to the air inlet end face of the air outlet channel and faces the air inlet end face. The return air outlet of the air duct assembly is connected to the receiving cavity. An evaporator is disposed within the aforementioned air duct assembly; and A fan is disposed within the air duct assembly; and Temperature and humidity sensor; The defogging method for the refrigerator includes: Obtain indoor temperature and humidity; and The operating speed and operating time of the fan are controlled according to the indoor temperature and humidity.

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