Refrigerator

Abstract

The application discloses a refrigerator, and belongs to the technical field of refrigeration equipment, and aims to solve the technical problem of low heat dissipation efficiency of a compressor chamber in a related refrigerator. The refrigerator is provided with a heat dissipation air duct, a refrigeration air duct and a defrosting air duct which are arranged on a return air piece. The heat dissipation air duct is connected with the evaporating chamber and the compressor chamber, the refrigeration air duct is connected with the refrigeration chamber and the heat dissipation air duct, and the defrosting air duct is connected with the evaporating chamber and the heat dissipation air duct. A defrosting air door is arranged to control the opening and closing of the defrosting air duct and the heat dissipation air duct, and a refrigeration air door is arranged to control the opening and closing of the refrigeration air duct and the heat dissipation air duct. When the refrigerator is in a heat dissipation mode, the refrigeration air door and the defrosting air door are closed, so that the cold quantity of the evaporator is used to reduce the temperature in the compressor chamber, and the heat dissipation efficiency of the refrigerator on the compressor chamber is improved. When the refrigerator is in a refrigeration mode, the refrigeration air door is opened, and the defrosting air door is closed. The cold air in the refrigeration chamber flows to the compressor chamber through the refrigeration air duct and the heat dissipation air duct, so that the temperature in the compressor chamber is rapidly reduced, and the heat dissipation efficiency on the compressor chamber is improved.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and more particularly to a refrigerator. Background Technology

[0002] As an indispensable refrigeration appliance in the home, the refrigerator's core function is to regulate the temperature of the cooling compartment through its refrigeration system. During refrigerator operation, the compressor and condenser are key components of the refrigeration system, and both generate a large amount of heat during operation, causing a significant increase in the temperature inside the compressor compartment. When the temperature inside the compressor compartment is too high, it can lead to problems such as poor heat dissipation of the condenser, or even compressor overheating and stopping, thereby reducing the refrigerator's cooling efficiency in the cooling compartment.

[0003] To reduce the temperature inside the compressor compartment, the refrigerators are equipped with cooling fans to dissipate heat from the compressor compartment. The cooling fans accelerate the heat exchange rate between the compressor compartment and the external environment, thereby achieving heat dissipation from the compressor compartment.

[0004] However, cooling the compressor compartment using a cooling fan has the problem of low cooling efficiency. Summary of the Invention

[0005] This application provides a refrigerator that can solve the technical problem of low heat dissipation efficiency in the compressor compartment.

[0006] This application provides a refrigerator, including:

[0007] The housing comprises a refrigeration chamber, an evaporator chamber, and a compressor chamber.

[0008] The evaporator is located in the evaporation chamber;

[0009] The compressor is located in the compressor compartment;

[0010] The condenser is located in the compressor compartment;

[0011] The connecting component has a fluid channel that connects the evaporation chamber and the compressor chamber respectively.

[0012] Return air unit, connected to the housing, has the following structure:

[0013] The heat dissipation air duct connects the evaporator chamber and the compressor chamber;

[0014] Cooling air duct, connecting the cooling room with the heat dissipation air duct;

[0015] The defrosting air duct connects the evaporation chamber to the heat dissipation air duct.

[0016] The defrost damper is movably connected to the return air component to control the opening and closing of the defrost air duct and the heat dissipation air duct;

[0017] The cooling damper is movably connected to the return air component to control the opening and closing of the cooling air duct and the heat dissipation air duct;

[0018] Specifically, when the refrigerator is in cooling mode, both the cooling damper and the defrost damper are closed; when the refrigerator is in cooling mode, the cooling damper is open and the defrost damper is closed; when the refrigerator is in defrost mode, the cooling damper is closed and the defrost damper is open.

[0019] The refrigerator of this application embodiment has a heat dissipation duct, a cooling duct, and a defrosting duct constructed on the return air component. The heat dissipation duct connects the evaporator compartment and the compressor compartment, the cooling duct connects the cooling compartment and the heat dissipation duct, and the defrosting duct connects the evaporator compartment and the heat dissipation duct. The defrosting damper is used to control the opening and closing of the defrosting duct and the heat dissipation duct, and the cooling damper is used to control the opening and closing of the cooling duct and the heat dissipation duct.

[0020] When the refrigerator is in cooling mode, both the cooling damper and the defrost damper are closed. The cold air in the evaporator compartment flows to the compressor compartment through the fluid channel, exchanges heat with the hot air in the compressor compartment, and then flows back to the evaporator compartment through the cooling duct. The cooling capacity of the evaporator is used to lower the temperature inside the compressor compartment. Since the temperature of the evaporator is much lower than the ambient temperature, the refrigerator's heat dissipation efficiency for the compressor compartment is improved.

[0021] When the refrigerator is in cooling mode, the cooling damper is open and the defrosting damper is closed. The cold air in the cooling compartment flows through the cooling duct to the heat dissipation duct. Part of the cold air in the heat dissipation duct flows to the evaporator compartment, participating in the cold air circulation between the evaporator compartment and the cooling compartment. Another part of the cold air in the heat dissipation duct flows to the compressor compartment to lower the temperature inside the compressor compartment. Since the temperature of the cold air is lower than the temperature inside the compressor compartment, the temperature inside the compressor compartment can be lowered quickly, improving the heat dissipation efficiency of the compressor compartment.

[0022] When the refrigerator is in defrost mode, the cooling damper is closed and the defrost damper is open. The hot air in the compressor compartment flows to the evaporator compartment through the heat dissipation duct and the defrost duct, and then flows back to the compressor compartment through the fluid channel. This not only uses the hot air in the compressor compartment to defrost the frost layer on the evaporator, reducing the energy consumption of the refrigerator during the defrosting stage, but also uses the cold air flowing back from the evaporator compartment to the compressor compartment to dissipate heat from the compressor compartment.

[0023] In some embodiments of this application, the two ends of the heat dissipation duct have a first heat dissipation air outlet and a second heat dissipation air outlet, respectively. The first heat dissipation air outlet is connected to the compressor chamber, and the second heat dissipation air outlet is connected to the evaporation chamber.

[0024] The projection of the condenser and / or compressor at the bottom of the compressor compartment, the projection of the side wall of the first heat dissipation vent at the bottom of the compressor compartment, and the projection of the channel wall of the fluid passage at the bottom of the compressor compartment.

[0025] With this configuration, the condenser and / or compressor are located in the airflow path between the fluid channel and the first heat dissipation vent, allowing cold air from the evaporator chamber to be blown onto the surface of the condenser and / or compressor to quickly remove heat from the surface of the condenser and / or compressor, thereby accelerating the heat dissipation efficiency of the condenser and / or compressor.

[0026] In some embodiments of this application, the defrosting air duct has a first defrosting air outlet and a second defrosting air outlet at both ends. The first defrosting air outlet is connected to the heat dissipation air duct, and the second defrosting air outlet is connected to the evaporation chamber. The second defrosting air outlet is located above the first defrosting air outlet.

[0027] The second heat dissipation vent is located below the second defrost vent.

[0028] With this configuration, since the second heat dissipation vent is located below the second defrost vent, the height range of the evaporator chamber covered by the hot air flowing from the second heat dissipation vent and the second defrost vent to the evaporator chamber is increased. This allows the hot air to cover a larger area in the height direction of the evaporator chamber, thereby improving the heat exchange efficiency between the hot air and the evaporator, increasing the melting rate of the frost layer on the evaporator surface, and thus increasing the defrosting rate.

[0029] In some embodiments of this application, the second defrosting vent faces the top of the evaporator, and the second heat dissipation vent faces the bottom of the evaporator.

[0030] With this configuration, when the refrigerator is in defrost mode, the hot air flowing from the heat dissipation duct to the defrost duct is blown towards the top of the evaporator through the second defrost vent, and the hot air from the heat dissipation duct flows towards the bottom of the evaporator through the second heat dissipation vent. This allows the hot air to cover the entire height range of the evaporator as much as possible, reducing the size range of the evaporator that is difficult to reach in the height direction, and improving the defrosting rate of the frost layer on the evaporator surface.

[0031] In some embodiments of this application, the two ends of the cooling air duct are respectively provided with a first cooling air outlet and a second cooling air outlet, the first cooling air outlet is connected to the cooling chamber, and the second cooling air outlet is connected to the heat dissipation air duct.

[0032] The cooling damper is configured to open or close the second cooling air inlet.

[0033] With this configuration, the cooling damper is used to open or close the end of the cooling duct near the heat dissipation duct, so that when the cooling damper is closed, no air from the heat dissipation duct flows into the entire cooling duct, reducing the amount of air trapped in the cooling duct.

[0034] In some embodiments of this application, the bottom of the evaporation chamber has a drain outlet;

[0035] The refrigerator also includes a drip tray, which is located inside the compressor compartment;

[0036] The top of the connector is connected to the drain outlet, and the bottom of the connector extends into the water receiving tray.

[0037] With this setup, when the refrigerator is in defrost mode, the defrost water generated by the melting frost on the evaporator surface flows downwards to the bottom of the evaporator compartment, then flows from the drain outlet into the fluid channel, and finally from the bottom of the fluid channel into the drip tray. The defrost water in the drip tray evaporates into water vapor in the hot environment inside the compressor compartment, and then escapes into the outside environment with the airflow inside the compressor compartment.

[0038] In some embodiments of this application, the fluid channel includes a main channel and branch channels;

[0039] The main passageway extends vertically;

[0040] The branch channel extends at an angle relative to the main channel, with one end of the branch channel connected to the main channel and the other end of the branch channel connected to the compressor chamber.

[0041] With this configuration, air in the main channel can flow to the compressor chamber through the branch channel, while defrosting water flows downwards into the water receiving tray through the main channel located below the branch channel, thus separating the air and defrosting water in the fluid channel and reducing the impact of defrosting water on airflow.

[0042] In some embodiments of this application, the refrigerator further includes a cooling fan disposed in the compressor compartment. The projection of the cooling fan at the bottom of the compressor compartment, the projection of the side wall of the first cooling vent at the bottom of the compressor compartment, and the projection of the channel wall of the fluid channel at the bottom of the compressor compartment are all between the two projections. The cooling fan is configured to cause air in the compressor compartment to flow from the fluid channel to the cooling duct.

[0043] With this setup, when the refrigerator is in cooling mode, the cooling fan operates, which can accelerate the heat exchange rate between the evaporator compartment and the compressor compartment, and improve the cooling efficiency of the compressor compartment.

[0044] When the refrigerator is in defrost mode, the cooling fan works, which can accelerate the heat exchange rate between the evaporator compartment and the compressor compartment, and improve the defrosting rate of the frost layer on the evaporator surface.

[0045] In some embodiments of this application, the housing is configured with a heat dissipation air inlet and a heat dissipation air outlet, which are respectively connected to the compressor chamber.

[0046] When the cooling fan is turned on, the air in the compressor chamber flows from the cooling air inlet to the cooling air outlet.

[0047] With this configuration, when the refrigerator is in heat dissipation mode, it dissipates heat from the compressor compartment using cold air from the evaporator compartment. On the other hand, it also reduces the temperature inside the compressor compartment through heat exchange between the external environment and the compressor compartment, further improving the heat dissipation efficiency of the compressor compartment.

[0048] In some embodiments of this application, the housing includes:

[0049] First box insert;

[0050] The second chamber forms a refrigeration compartment;

[0051] The air duct assembly is located inside the first chamber and forms an evaporation chamber with the first chamber; the air duct assembly forms an air supply cavity, which is connected to the evaporation chamber and the refrigeration chamber respectively.

[0052] With this configuration, the cooling chamber of the second chamber can be connected to the air supply chamber through the inner cavity of the air supply component. When the air supply fan is working, it can not only allow the cold air in the air supply chamber to flow to the cooling chamber of the first chamber through the air outlet, but also flow to the cooling chamber of the second chamber through the inner cavity of the air supply component, thereby simultaneously cooling the cooling chambers of both the first and second chambers. Attached Figure Description

[0053] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0054] Figure 1 This is a schematic diagram of the refrigerator's cabinet structure according to an embodiment of this application;

[0055] Figure 2 This is a partial structural diagram of a refrigerator according to an embodiment of this application;

[0056] Figure 3 for Figure 2 A structural diagram from a first-person perspective;

[0057] Figure 4 for Figure 3 Sectional view along the middle AA direction;

[0058] Figure 5 for Figure 2 A structural diagram from a second-person perspective;

[0059] Figure 6 for Figure 5 Sectional view along the BB direction;

[0060] Figure 7 for Figure 2 A schematic diagram of the structure after removing part of the hull shell;

[0061] Figure 8 for Figure 2 A partial diagram of the exploded structure;

[0062] Figure 9 This is a schematic diagram of the structure of the return air component in a refrigerator according to an embodiment of this application. Figure 1 ;

[0063] Figure 10 This is a schematic diagram of the structure of the return air component in a refrigerator according to an embodiment of this application. Figure 2 ;

[0064] Figure 11 for Figure 9 A cross-sectional view along the CC direction;

[0065] Figure 12 for Figure 11 A schematic diagram of the structure when the defrosting damper is open and the cooling damper is closed;

[0066] Figure 13 for Figure 11 A schematic diagram of the structure when the defrosting damper is closed and the cooling damper is open.

[0067] Explanation of reference numerals in the attached figures:

[0068] 10 - Enclosure; 101 - Refrigeration compartment;

[0069] 110 - Tank liner; 111 - First tank liner; 112 - Second tank liner; 1121 - Evaporator chamber; 1122 - Drain outlet;

[0070] 120 - Box shell;

[0071] 130 - Compressor housing; 131 - Compressor compartment; 132 - Heat dissipation air inlet; 133 - Heat dissipation air outlet;

[0072] 140 - Duct assembly; 141 - Duct front cover; 1411 - Air supply outlet; 1412 - Air return outlet; 142 - Duct rear cover; 1421 - Air supply chamber; 1422 - Air inlet; 143 - Air supply fan;

[0073] 210 - Evaporator; 220 - Compressor; 230 - Condenser;

[0074] 30 - Air supply component;

[0075] 40 - Return air component; 410 - Heat dissipation duct; 411 - First heat dissipation vent; 412 - Second heat dissipation vent; 420 - Cooling duct; 421 - First cooling vent; 422 - Second cooling vent; 430 - Defrosting duct; 431 - First defrosting vent; 432 - Second defrosting vent;

[0076] 50-Defrosting damper;

[0077] 60-Refrigeration damper;

[0078] 70 - Connecting element; 701 - Fluid channel; 702 - Main channel; 703 - Branch channel;

[0079] 80-Water tray;

[0080] 90-Cooling fan. Detailed Implementation

[0081] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0082] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0083] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0084] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0085] As stated in the background section, refrigerators in related technologies suffer from low heat dissipation efficiency in the compressor compartment. The inventors have discovered that this problem arises because these refrigerators use a cooling fan installed within the compressor compartment to accelerate heat exchange between the external environment and the compartment, thereby achieving heat dissipation. However, since external ambient temperature is typically closely related to seasonal climate, especially during the high temperatures of summer, the air drawn into the compressor compartment by the cooling fan is also at a higher temperature, leading to a significant reduction in the compressor compartment's heat dissipation efficiency.

[0086] To address the aforementioned technical problems, this application provides a refrigerator with a heat dissipation duct, a cooling duct, and a defrosting duct constructed on the return air component. The heat dissipation duct connects the evaporator compartment and the compressor compartment, the cooling duct connects the cooling compartment and the heat dissipation duct, and the defrosting duct connects the evaporator compartment and the heat dissipation duct. The defrosting damper is used to control the opening and closing of the defrosting duct and the heat dissipation duct, and the cooling damper is used to control the opening and closing of the cooling duct and the heat dissipation duct.

[0087] When the refrigerator is in cooling mode, both the cooling damper and the defrost damper are closed. The cold air in the evaporator compartment flows to the compressor compartment through the fluid channel, exchanges heat with the hot air in the compressor compartment, and then flows back to the evaporator compartment through the cooling duct. The cooling capacity of the evaporator is used to lower the temperature inside the compressor compartment. Since the temperature of the evaporator is much lower than the ambient temperature, the refrigerator's heat dissipation efficiency for the compressor compartment is improved.

[0088] When the refrigerator is in cooling mode, the cooling damper is open and the defrosting damper is closed. The cold air in the cooling compartment flows through the cooling duct to the heat dissipation duct. Part of the cold air in the heat dissipation duct flows to the evaporator compartment, participating in the cold air circulation between the evaporator compartment and the cooling compartment. Another part of the cold air in the heat dissipation duct flows to the compressor compartment to lower the temperature inside the compressor compartment. Since the temperature of the cold air is lower than the temperature inside the compressor compartment, the temperature inside the compressor compartment can be lowered quickly, improving the heat dissipation efficiency of the compressor compartment.

[0089] When the refrigerator is in defrost mode, the cooling damper is closed and the defrost damper is open. The hot air in the compressor compartment flows to the evaporator compartment through the heat dissipation duct and the defrost duct, and then flows back to the compressor compartment through the fluid channel. This not only uses the hot air in the compressor compartment to defrost the frost layer on the evaporator, reducing the energy consumption of the refrigerator during the defrosting stage, but also uses the cold air flowing back from the evaporator compartment to the compressor compartment to dissipate heat from the compressor compartment.

[0090] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0091] refer to Figure 1 The refrigerator provided in this application embodiment may include a cabinet 10 having a cooling compartment 101, a door connected to the cabinet 10 to open and close the cooling compartment 101, and a refrigeration system for supplying cold air to the cooling compartment 101.

[0092] The refrigeration room 101 is used to store items that require low-temperature preservation.

[0093] refer to Figure 1 The cabinet 10 may include a cabinet liner 110, and a refrigeration compartment 101 is formed inside the cabinet liner 110. A retrieval opening may be formed on the front side of the refrigeration compartment 101, through which a user can take items out of the refrigeration compartment 101 or place items into the refrigeration compartment 101.

[0094] refer to Figure 1The box body 10 may also include a box shell 120, which is disposed on the outside of the box liner 110 to form the appearance of the box body 10.

[0095] When the door of the refrigeration room 101 is opened, it is convenient to place items into or retrieve items from the refrigeration room 101.

[0096] When the door of the refrigeration chamber 101 is closed, the leakage of cold air inside the refrigeration chamber 101 can be reduced, thereby improving the insulation effect of the refrigeration chamber 101.

[0097] The refrigeration system can be installed inside the enclosure 10. The refrigeration system is used to provide cold air to the refrigeration chamber 101 to reduce the temperature inside the refrigeration chamber 101.

[0098] refer to Figure 2 , Figure 3 and Figure 4 The refrigeration system may include a compressor 220, a condenser 230, a throttling element (capillary tube or electronic expansion valve) and an evaporator 210 connected in series through pipelines, and refrigerant flows through the pipelines.

[0099] Compressor 220 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flows into condenser 230, dissipating heat to the outside air and cooling down, condensing into a room-temperature, high-pressure liquid refrigerant. The high-pressure liquid refrigerant passes through a throttling element, instantly reducing its pressure and becoming a low-temperature, low-pressure gas-liquid mixture, with its temperature rapidly decreasing. This low-temperature gas-liquid mixture flows into evaporator 210, rapidly boiling and evaporating into a gas; evaporation absorbs a large amount of heat, causing the temperature of the chamber containing evaporator 210 to drop rapidly. The heat-absorbing low-temperature, low-pressure gaseous refrigerant then flows back to compressor 220, starting the next cycle to further reduce the temperature of the chamber containing evaporator 210.

[0100] The chamber where the evaporator 210 is located is connected to the refrigeration chamber 101 so that the low-temperature air in the chamber where the evaporator 210 is located can be transported to the refrigeration chamber 101, thereby lowering the temperature of the refrigeration chamber 101 and achieving low-temperature storage of items in the refrigeration chamber 101.

[0101] refer to Figure 4 The housing 10 may also form an evaporation chamber 1121. The evaporator 210 is disposed in the evaporation chamber 1121.

[0102] refer to Figure 5 and Figure 6 The housing 10 may also include an air duct assembly 140, which may be disposed within the housing liner 110. The air duct assembly 140 may form an evaporation chamber 1121 or may be enclosed with the housing liner 110 to form an evaporation chamber 1121.

[0103] The evaporation chamber 1121 is connected to the refrigeration chamber 101 to transport the low-temperature air in the evaporation chamber 1121 to the refrigeration chamber 101, thereby lowering the temperature of the refrigeration chamber 101.

[0104] In some possible implementations of the embodiments of this application, reference is made to Figure 6 The liner 110 may include a first liner 111, and the air duct assembly 140 may be disposed within the first liner 111, dividing the cavity of the first liner 111 into an evaporation chamber 1121 and a refrigeration chamber 101. The refrigeration chamber 101 may be located on the front side of the air duct assembly 140 along the depth direction Y of the first liner 111, and the evaporation chamber 1121 may be located on the rear side of the air duct assembly 140 along the depth direction Y of the first liner 111, that is, the air duct assembly 140 and the first liner 111 enclose and form the evaporation chamber 1121.

[0105] Specifically, the front side along the depth direction Y of the first compartment 111 is the side facing the opening along the depth direction Y of the first compartment 111; the rear side along the depth direction Y of the first compartment 111 is the side away from the opening along the depth direction Y of the first compartment 111; that is, along... Figure 6 In the mid-depth direction, the positive direction of Y is forward, and the negative direction of Y along the depth direction is backward.

[0106] refer to Figure 6 The air duct assembly 140 may include a front cover plate 141 and a rear cover plate 142, with the front cover plate 141 located in front of the rear cover plate 142 along the depth direction Y of the first chamber 111. The front cover plate 141 and the rear cover plate 142 together form an air supply cavity 1421.

[0107] An air inlet 1422 is constructed on the rear cover plate 142 of the air duct, and the air inlet 1422 is connected to the evaporation chamber 1121.

[0108] The air duct assembly 140 may also include an air supply fan 143, which may be disposed in the air supply chamber 1421. The air supply fan 143 is used to direct the cold air in the compressor chamber 131 through the air inlet 1422 to the air supply chamber 1421.

[0109] An air outlet 1411 may be constructed on the front cover plate 141 of the air duct. The air outlet 1411 is connected to the air supply cavity 1421 and the cooling chamber 101 located in front of the front cover plate 141 of the air duct, so that the cold air in the air supply cavity 1421 flows into the cooling chamber 101 through the air outlet 1411, thereby achieving the cooling of the cooling chamber 101.

[0110] The front cover plate 141 of the air duct can be configured with a return air inlet 1412, or it can be enclosed with the first chamber 111 to form a return air inlet 1412. The return air inlet 1412 is connected to the refrigeration chamber 101 and the evaporation chamber 1121 located on the front side of the front cover plate 141 of the air duct, so that the air in the refrigeration chamber 101 flows back to the evaporation chamber 1121 through the return air inlet 1412, and after being refrigerated again by the evaporator 210, it circulates back to the refrigeration chamber 101.

[0111] In some possible implementations of the embodiments of this application, reference is made to Figure 4 and Figure 5 The inner chamber 110 may also include a second inner chamber 112, which may form a refrigeration chamber 101.

[0112] The second compartment 112 and the first compartment 111 can be arranged along the width direction X of the compartment 10.

[0113] refer to Figure 2 and Figure 4 The housing 10 may also include an air supply component 30, which can be connected to the first housing liner 111 and the second housing liner 112, and connects the evaporation chamber 1121 and the cooling chamber 101 of the second housing liner 112, so as to deliver the low-temperature air in the evaporation chamber 1121 to the cooling chamber 101 of the second housing liner 112, thereby achieving cooling of the cooling chamber 101 of the second housing liner 112.

[0114] The cooling chamber 101 of the second chamber 112 can be connected to the air supply chamber 1421 through the inner cavity of the air supply component 30. When the air supply fan 143 is working, it can not only make the cold air in the air supply chamber 1421 flow to the cooling chamber 101 of the first chamber 111 through the air supply port 1411, but also flow to the cooling chamber 101 of the second chamber 112 through the inner cavity of the air supply component 30, thereby simultaneously achieving cooling of the cooling chamber 101 of the first chamber 111 and the cooling chamber 101 of the second chamber 112.

[0115] refer to Figure 4 , Figure 6 and Figure 7 The housing 10 may also form a press chamber 131. The housing 10 may also include a chamber shell 130, at least a portion of which is disposed within the housing shell 120. The chamber shell 130 may form the press chamber 131 or be enclosed with the housing shell 120 to form the press chamber 131.

[0116] The compressor 220 and condenser 230 are located within the compressor compartment 131. During refrigerator operation, the refrigerant is compressed at the compressor 220, causing its temperature to rise. Similarly, the refrigerant condenses and dissipates heat at the condenser 230, also raising its temperature. This temperature increase in both the compressor 220 and condenser 230 leads to heat exchange between the air within the compressor compartment 131 and these components, resulting in an overall increase in temperature within the compressor compartment 131.

[0117] refer to Figure 2 , Figure 4 , Figure 7 and Figure 8 In order to reduce the temperature inside the compressor compartment 131 and improve the heat dissipation efficiency of the compressor 220 and the condenser 230, the refrigerator of this embodiment also includes a return air component 40, which is disposed in the cabinet 10.

[0118] refer to Figure 4 , Figure 9 , Figure 10 and Figure 11 The return air component 40 is constructed with a heat dissipation duct 410, a cooling duct 420, and a defrosting duct 430. The heat dissipation duct 410 connects the evaporator chamber 1121 and the compressor chamber 131. The cooling duct 420 connects the cooling compartment 101 and the heat dissipation duct 410. The defrosting duct 430 connects the evaporator chamber 1121 and the heat dissipation duct 410.

[0119] In some possible implementations of the embodiments of this application, reference is made to Figure 4 The cooling air duct 420 can connect the heat dissipation air duct 410 with the cooling chamber 101 inside the first box 111.

[0120] In some other possible implementations of the embodiments of this application, reference is made to Figure 4 The cooling air duct 420 can connect the heat dissipation air duct 410 with the cooling chamber 101 inside the second box 112.

[0121] refer to Figure 4 and Figure 11 The refrigerator also includes a defrost damper 50. The defrost damper 50 is movably connected to the return air component 40 to control the opening and closing of the defrost air duct 430 and the heat dissipation air duct 410.

[0122] The defrost damper 50 can be installed at both ends of the defrost duct 430 or inside the defrost duct 430. The defrost damper 50 can be rotatably connected to the return air component 40 (see reference). Figure 11 and Figure 12 Alternatively, a sliding connection can be used to open or close the defrosting duct 430. (See reference) Figure 4 and Figure 11When the defrost damper 50 closes the defrost duct 430, the defrost duct 430 is disconnected from the heat dissipation duct 410, and air in the heat dissipation duct 410 cannot flow to the defrost duct 430. (Reference) Figure 12 When the defrost damper 50 opens the defrost duct 430, the defrost duct 430 is connected to the heat dissipation duct 410, and the air in the heat dissipation duct 410 can flow into the defrost duct 430.

[0123] refer to Figure 4 , Figure 11 and Figure 13 The refrigerator also includes a cooling damper 60. The cooling damper 60 is movably connected to the return air component 40 to control the opening and closing of the cooling air duct 420 and the heat dissipation air duct 410. The cooling damper 60 can be rotatably connected to the return air component 40 (see reference). Figure 11 and Figure 13 Alternatively, a sliding connection can be used to open or close the cooling duct 420. (See reference) Figure 4 and Figure 11 When the cooling damper 60 closes the cooling duct 420, the cooling duct 420 is disconnected from the heat dissipation duct 410, and air in the heat dissipation duct 410 cannot flow to the cooling duct 420. (Reference) Figure 13 When the cooling damper 60 opens the cooling duct 420, the cooling duct 420 is connected to the heat dissipation duct 410, and the air in the cooling duct 420 can flow into the heat dissipation duct 410.

[0124] refer to Figure 4 The refrigerator in this embodiment of the application also includes a connecting member 70, which is connected to the cabinet 10. The connecting member 70 is configured with a fluid channel 701, which connects the evaporator chamber 1121 and the compressor chamber 131 respectively. The evaporator chamber 1121 and the compressor chamber 131 can be connected through the fluid channel 701.

[0125] The refrigerator of this application embodiment has a heat dissipation mode, a cooling mode, and a defrosting mode.

[0126] refer to Figure 4 and Figure 11When the refrigerator is in cooling mode, both the cooling damper 60 and the defrosting damper 50 are closed. The evaporator compartment 1121 and the compressor compartment 131 are connected not only through the fluid channel 701 but also through the cooling duct 410. The cold air in the evaporator compartment 1121 flows to the compressor compartment 131 through the fluid channel 701, exchanges heat with the hot air in the compressor compartment 131, and then flows back to the evaporator compartment 1121 through the cooling duct 410, thereby reducing the temperature inside the compressor compartment 131 through the cooling capacity of the evaporator 210. Since the temperature inside the evaporator compartment 1121 is much lower than the ambient temperature, compared to exchanging heat between the compressor compartment 131 and the ambient temperature, the method of exchanging heat between the air in the evaporator compartment 1121 and the compressor compartment 131 can quickly reduce the temperature inside the compressor compartment 131, improving the refrigerator's heat dissipation efficiency for the compressor compartment 131, and thus improving the heat dissipation efficiency for the condenser 230 and the compressor 220.

[0127] refer to Figure 13 When the refrigerator is in cooling mode, the cooling damper 60 is open, the defrosting damper 50 is closed, and the cooling duct 420 is connected to the heat dissipation duct 410. Cold air in the evaporator chamber 1121 flows to the cooling compartment 101 through the air supply component 30. Return air in the cooling compartment 101 flows to the heat dissipation duct 410 through the cooling duct 420. A portion of the cold air in the heat dissipation duct 410 flows back to the evaporator chamber 1121, and after its temperature decreases again, it flows back to the cooling compartment 101 through the air supply component 30, participating in the cold air circulation between the evaporator chamber 1121 and the cooling compartment 101. Another portion of the cold air in the heat dissipation duct 410 flows to the compressor compartment 131 to lower the temperature within the compressor compartment 131. Since the temperature of the return air in the refrigeration compartment 101 is lower than the ambient temperature, compared to exchanging heat between the outside environment and the compressor compartment 131, the method of exchanging heat between the return air in the refrigeration compartment 101 and the compressor compartment 131 can quickly reduce the temperature inside the compressor compartment 131, thereby improving the heat dissipation efficiency of the refrigerator to the compressor compartment 131, and thus improving the heat dissipation efficiency of the condenser 230 and the compressor 220.

[0128] refer to Figure 12When the refrigerator is in defrost mode, the cooling damper 60 is closed, the defrost damper 50 is open, and the defrost duct 430 is connected to the heat dissipation duct 410. Hot air in the compressor compartment 131 flows to the heat dissipation duct 410, and then flows to the evaporator compartment 1121 through both the heat dissipation duct 410 and the defrost duct 430. The hot air melts the frost layer on the evaporator 210, thus defrosting the frost layer on the surface of the evaporator 210. Cold air in the evaporator compartment 1121 flows to the compressor compartment 131 through the fluid channel 701, further reducing the temperature inside the compressor compartment 131. In this way, the hot air in the compressor compartment 131 is used to defrost the frost layer on the evaporator 210, reducing energy consumption during the defrosting stage of the refrigerator; and the cold air returning from the evaporator compartment 1121 to the compressor compartment 131 dissipates heat from the compressor compartment 131.

[0129] refer to Figure 4 The two ends of the heat dissipation duct 410 may have a first heat dissipation vent 411 and a second heat dissipation vent 412. The first heat dissipation vent 411 is connected to the compressor chamber 131, and the second heat dissipation vent 412 is connected to the evaporation chamber 1121.

[0130] When the refrigerator is in cooling or defrosting mode, the airflow direction within the compressor compartment 131 is from the fluid channel 701 to the first cooling vent 411. The projection of the condenser 230 and / or compressor 220 at the bottom of the compressor compartment 131 is between the projection of the side wall of the first cooling vent 411 at the bottom of the compressor compartment 131 and the projection of the channel wall of the fluid channel 701 at the bottom of the compressor compartment 131. Thus, the condenser 230 and / or compressor 220 are located in the airflow path between the fluid channel 701 and the first cooling vent 411, allowing cold air from the evaporator compartment 1121 to be blown onto the surface of the condenser 230 and / or compressor 220 to quickly remove heat from the surface of the condenser 230 and / or compressor 220, thereby accelerating the heat dissipation efficiency of the condenser 230 and / or compressor 220.

[0131] refer to Figure 4 The defrosting air duct 430 has a first defrosting air vent 431 and a second defrosting air vent 432 at its two ends. The first defrosting air vent 431 is connected to the heat dissipation air duct 410, and the second defrosting air vent 432 is connected to the evaporation chamber 1121. The second defrosting air vent 432 is located above the first defrosting air vent 431.

[0132] The second heat dissipation vent 412 is located below the second defrost vent 432.

[0133] When the refrigerator is in defrost mode, hot air in the compressor compartment 131 flows through the first heat dissipation vent 411 to the heat dissipation duct 410, and then flows through the second heat dissipation vent 412 and the second defrost vent 432 to the evaporator compartment 1121. Since the second heat dissipation vent 412 is located below the second defrost vent 432, the height range of the evaporator compartment 1121 covered by the hot air flowing from the second heat dissipation vent 412 and the second defrost vent 432 to the evaporator compartment 1121 is increased. This allows the hot air to cover a larger area in the height direction of the evaporator compartment 1121, thereby improving the heat exchange efficiency between the hot air and the evaporator 210, increasing the melting rate of the frost layer on the surface of the evaporator 210, and thus increasing the defrost rate.

[0134] The second defrost vent 432 can face the top of the evaporator 210, and the second heat dissipation vent 412 can face the bottom of the evaporator 210. In this way, when the refrigerator is in defrost mode, the hot air flowing from the heat dissipation duct 410 to the defrost duct 430 is blown from the second defrost vent 432 to the top of the evaporator 210, and the hot air from the heat dissipation duct 410 flows from the second heat dissipation vent 412 to the bottom of the evaporator 210. This allows the hot air to cover the entire height range of the evaporator 210 as much as possible, reducing the size range of the evaporator 210 that is difficult to contact with hot air in the height direction, and improving the defrosting rate of the frost layer on the surface of the evaporator 210.

[0135] refer to Figure 4 , Figure 11 and Figure 12 The defrost damper 50 is configured to open or close the first defrost vent 431. That is, the defrost damper 50 is used to open or close the end of the defrost duct 430 near the heat dissipation duct 410, so that when the defrost damper 50 is closed, no air from the heat dissipation duct 410 flows into the entire defrost duct 430, reducing the amount of air trapped in the defrost duct 430.

[0136] The two ends of the cooling air duct 420 may have a first cooling air outlet 421 and a second cooling air outlet 422 respectively. The first cooling air outlet 421 is connected to the cooling chamber 101, and the second cooling air outlet 422 is connected to the heat dissipation air duct 410.

[0137] refer to Figure 4 , Figure 11 and Figure 13 The cooling damper 60 is configured to open or close the second cooling air inlet 422. That is, the cooling damper 60 is used to open or close the end of the cooling air duct 420 near the heat dissipation air duct 410 so that when the cooling damper 60 is closed, no air from the heat dissipation air duct 410 flows into the entire cooling air duct 420, reducing the amount of air trapped in the cooling air duct 420.

[0138] refer to Figure 4The bottom of the evaporation chamber 1121 may have a drain outlet 1122.

[0139] The refrigerator also includes a water tray 80, which is located inside the compressor compartment 131.

[0140] The top end of the connecting member 70 (that is, the top end of the fluid channel 701) is connected to the drain outlet 1122, and the bottom end of the connecting member 70 extends into the water receiving tray 80.

[0141] When the refrigerator is in defrost mode, the defrost water generated by the melting of frost on the surface of the evaporator 210 flows downward to the bottom of the evaporation chamber 1121, then flows from the drain outlet 1122 to the fluid channel 701, and from the bottom of the fluid channel 701 into the drip tray 80. The defrost water in the drip tray 80 evaporates into water vapor in the hot environment inside the compressor chamber 131, and escapes into the outside environment with the airflow inside the compressor chamber 131.

[0142] Because the defrosting water volume is small during defrosting mode, the defrosting water cannot completely occupy the fluid channel 701. Therefore, the air in the evaporator chamber 1121 can also flow into the compressor chamber 131 through the fluid channel 701, so that the air in the evaporator chamber 1121 and the compressor chamber 131 can exchange heat, so as to use the heat in the compressor chamber 131 to melt the frost layer on the surface of the evaporator 210.

[0143] refer to Figure 4 The fluid channel 701 may include a main channel 702 and a branch channel 703.

[0144] The main channel 702 extends vertically and is mainly used to guide the defrosting water downwards.

[0145] Branch channel 703 extends at an angle relative to main channel 702. One end of branch channel 703 is connected to main channel 702, and the other end of branch channel 703 is connected to compressor chamber 131. Air in main channel 702 can flow to compressor chamber 131 through branch channel 703, and defrosting water flows downward through main channel 702 located below branch channel 703 into water receiving tray 80, thereby diverting air and defrosting water in fluid channel 701 and reducing the impact of defrosting water on airflow.

[0146] In some possible implementations of the embodiments of this application, reference is made to Figure 4 , Figure 7 and Figure 8The refrigerator may also include a cooling fan 90, which is disposed within the compressor compartment 131. The projection of the cooling fan 90 onto the bottom of the compressor compartment 131 may be located between the projection of the side wall of the first cooling vent 411 onto the bottom of the compressor compartment 131 and the projection of the channel wall of the fluid passage 701 onto the bottom of the compressor compartment 131, so that the cooling fan 90 is located in the airflow path between the fluid passage 701 and the first cooling vent 411. The cooling fan 90 is configured to cause air within the compressor compartment 131 to flow from the fluid passage 701 to the cooling duct 410.

[0147] When the refrigerator is in heat dissipation mode or defrost mode, the heat dissipation fan 90 operates, and the air in the compressor compartment 131 flows from the side of the heat dissipation fan 90 near the fluid channel 701 to the side of the heat dissipation fan 90 near the first heat dissipation vent 411, so as to accelerate the air flow rate from the fluid channel 701 to the first heat dissipation vent 411 in the compressor compartment 131, thereby accelerating the heat exchange rate between the evaporation compartment 1121 and the compressor compartment 131.

[0148] When the refrigerator is in heat dissipation mode, the heat dissipation fan 90 works, which can accelerate the heat exchange rate between the evaporator chamber 1121 and the compressor chamber 131 and improve the heat dissipation efficiency of the compressor chamber 131.

[0149] When the refrigerator is in defrost mode, the cooling fan 90 works, which can accelerate the heat exchange rate between the evaporator chamber 1121 and the compressor chamber 131, and improve the defrosting rate of the frost layer on the surface of the evaporator 210.

[0150] refer to Figure 2 and Figure 8 The housing 10 may be constructed with a heat dissipation air inlet 132 and a heat dissipation air outlet 133. The heat dissipation air inlet 132 and the heat dissipation air outlet 133 are respectively connected to the compressor chamber 131. Both the heat dissipation air inlet 132 and the heat dissipation air outlet 133 are used to connect the compressor chamber 131 with the external environment.

[0151] When the cooling fan 90 is turned on, the air in the compressor chamber 131 flows from the cooling air inlet 132 to the cooling air outlet 133.

[0152] When the refrigerator is in heat dissipation mode, on the one hand, the compressor compartment 131 is cooled by the cold air from the evaporator compartment 1121; on the other hand, the temperature inside the compressor compartment 131 is reduced by heat exchange between the external environment and the compressor compartment 131, which further improves the heat dissipation efficiency of the compressor compartment 131.

[0153] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0154] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the above embodiments and various different variations of embodiments suitable for specific application considerations.

Claims

1. A refrigerator, characterized in that, include: The housing (10) has a refrigeration chamber (101), an evaporation chamber (1121) and a compressor chamber (131). Evaporator (210) is disposed in the evaporation chamber (1121); A compressor (220) is disposed in the compressor compartment (131); A condenser (230) is disposed in the compressor compartment (131); The connecting member (70) is configured with a fluid channel (701), which connects the evaporation chamber (1121) and the compressor chamber (131) respectively. Return air component (40), connected to the housing (10), the return air component (40) having the following structure: A heat dissipation duct (410) connects the evaporation chamber (1121) and the compressor chamber (131); the two ends of the heat dissipation duct (410) are respectively provided with a first heat dissipation air outlet (411) and a second heat dissipation air outlet (412), the first heat dissipation air outlet (411) is connected to the compressor chamber (131), and the second heat dissipation air outlet (412) is connected to the evaporation chamber (1121); A cooling air duct (420) connects the cooling chamber (101) and the heat dissipation air duct (410). A defrosting air duct (430) connects the evaporation chamber (1121) and the heat dissipation air duct (410); the two ends of the defrosting air duct (430) are respectively provided with a first defrosting air outlet (431) and a second defrosting air outlet (432), the first defrosting air outlet (431) is connected to the heat dissipation air duct (410), the second defrosting air outlet (432) is connected to the evaporation chamber (1121), the second defrosting air outlet (432) is located above the first defrosting air outlet (431); the second heat dissipation air outlet (412) is located below the second defrosting air outlet (432); A defrost damper (50) is movably connected to the return air component (40) to control the opening and closing of the defrost air duct (430) and the heat dissipation air duct (410); A cooling damper (60) is movably connected to the return air component (40) to control the opening and closing of the cooling air duct (420) and the heat dissipation air duct (410); When the refrigerator is in heat dissipation mode, both the cooling damper (60) and the defrosting damper (50) are closed; when the refrigerator is in cooling mode, the cooling damper (60) is open and the defrosting damper (50) is closed; when the refrigerator is in defrosting mode, the cooling damper (60) is closed and the defrosting damper (50) is open.

2. The refrigerator according to claim 1, characterized in that, The projection of the condenser (230) and / or the compressor (220) at the bottom of the compressor compartment (131), the projection of the sidewall of the first heat dissipation vent (411) at the bottom of the compressor compartment (131), and the projection of the channel wall of the fluid channel (701) at the bottom of the compressor compartment (131).

3. The refrigerator according to claim 1, characterized in that, The second defrosting vent (432) faces the top of the evaporator (210), and the second heat dissipation vent (412) faces the bottom of the evaporator (210).

4. The refrigerator according to any one of claims 1-3, characterized in that, The cooling air duct (420) has a first cooling air outlet (421) and a second cooling air outlet (422) at both ends. The first cooling air outlet (421) is connected to the cooling chamber (101), and the second cooling air outlet (422) is connected to the heat dissipation air duct (410). The cooling damper (60) is configured to open or close the second cooling vent (422).

5. The refrigerator according to any one of claims 1-3, characterized in that, The bottom of the evaporation chamber (1121) has a drain outlet (1122). The refrigerator also includes a water receiving tray (80), which is disposed inside the compressor compartment (131); The top end of the connector (70) is connected to the drain outlet (1122), and the bottom end of the connector (70) extends into the water receiving tray (80).

6. The refrigerator according to claim 5, characterized in that, The fluid channel (701) includes a main channel (702) and a branch channel (703). The main channel (702) extends vertically; The branch channel (703) extends at an angle relative to the main channel (702), one end of the branch channel (703) is connected to the main channel (702), and the other end of the branch channel (703) is connected to the compressor chamber (131).

7. The refrigerator according to any one of claims 1-3, characterized in that, The refrigerator also includes a cooling fan (90), which is disposed in the compressor chamber (131). The projection of the cooling fan (90) at the bottom of the compressor chamber (131) is between the projection of the side wall of the first cooling vent (411) at the bottom of the compressor chamber (131) and the projection of the channel wall of the fluid channel (701) at the bottom of the compressor chamber (131). The cooling fan (90) is configured to allow air in the compressor chamber (131) to flow from the fluid channel (701) to the cooling duct (410).

8. The refrigerator according to claim 7, characterized in that, The housing (10) is equipped with a heat dissipation air inlet (132) and a heat dissipation air outlet (133), which are respectively connected to the compressor chamber (131); When the cooling fan (90) is turned on, the air in the compressor chamber (131) flows from the cooling air inlet (132) to the cooling air outlet (133).

9. The refrigerator according to any one of claims 1-3, characterized in that, The housing (10) includes: First box (111); The second chamber (112) forms the refrigeration compartment (101). The air duct assembly (140) is disposed inside the first box liner (111) and forms the evaporation chamber (1121) together with the first box liner (111); the air duct assembly (140) forms an air supply cavity (1421), which is connected to the evaporation chamber (1121) and the refrigeration chamber (101) respectively.

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