Refrigerator

Abstract

The utility model discloses a refrigerator, belongs to the technical field of refrigeration equipment, and aims to solve the technical problem that a foaming material is difficult to flow to the rear part of a refrigerator liner at the top of the refrigerator. The refrigerator comprises a refrigerator body and a flow guide assembly. The refrigerator body comprises a refrigerator shell, an upper refrigerator liner, a first lower refrigerator liner and a second lower refrigerator liner, a heat preservation cavity is defined by the refrigerator liner and the refrigerator shell, and the heat preservation cavity comprises a first heat preservation cavity located behind the upper refrigerator liner, the first lower refrigerator liner and the second lower refrigerator liner and a second heat preservation cavity located between the first lower refrigerator liner and the second lower refrigerator liner; the flow guide assembly is arranged in the heat preservation cavity, the top end of a flow guide channel formed by the flow guide assembly is located behind the upper refrigerator container, and the flow guide assembly shields part of the first material passing opening in the rear end of the second heat preservation cavity so that the filling speed of foaming materials to the second heat preservation cavity can be reduced, and more foaming materials can flow to the flow guide channel. And the foaming material flows to the rear of the upper refrigerator liner through the flow guide channel, so that the foaming material flows to the rear of the upper refrigerator liner more easily, and the filling rate of the first heat preservation cavity behind the upper refrigerator liner is increased.

Description

Technical Field

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

[0002] After the refrigerator's outer shell and inner liner are assembled, an insulation cavity is formed between them. Foaming material is injected into the insulation cavity through the injection port on the outer shell. The foaming material undergoes a chemical reaction in the insulation cavity and expands to form foam. The foam can quickly fill the insulation cavity. As the chemical reaction continues, the foam gradually solidifies, forming a heat insulation layer between the outer shell and the inner liner.

[0003] In refrigerators with three compartments (e.g., a refrigerator compartment, a freezer compartment, and a variable-temperature compartment), the freezer and variable-temperature compartments are typically arranged side-by-side along the width of the refrigerator shell at the bottom of the refrigerator compartment, forming an insulation cavity between the compartments and the shell. The filling port is located on the shell at the bottom of the insulation cavity. When foaming material is injected into the insulation cavity through the filling port, the distance between the refrigerator compartment and the filling port makes it difficult for the foaming material to flow to the insulation cavities behind and above the refrigerator compartment. This results in localized poor filling or voids in the insulation cavities behind and above the refrigerator compartment, ultimately reducing the refrigerator's insulation performance. Utility Model Content

[0004] This application provides a refrigerator that solves the technical problem of making it difficult for foamed material to flow to the rear of the top liner in related refrigerators.

[0005] This application provides a refrigerator, including:

[0006] The enclosure includes:

[0007] The casing is equipped with an injection port for injecting foaming material;

[0008] The container liner, located inside the container shell, includes:

[0009] Upper chamber liner;

[0010] The first lower chamber liner is located below the upper chamber liner;

[0011] The second lower chamber is located below the upper chamber and is spaced apart from the first lower chamber along the width of the chamber shell.

[0012] The inner liner and outer shell enclose an insulated cavity, which includes:

[0013] The first insulation cavity is located behind the upper chamber, the first lower chamber, and the second lower chamber. The first insulation cavity is located above the filling port and is connected to the filling port.

[0014] The second insulation chamber is located between the first lower chamber and the second lower chamber. The rear end of the second insulation chamber has a first material outlet, and the second insulation chamber is connected to the first insulation chamber through the first material outlet.

[0015] A flow guiding component is installed inside the insulation cavity, and the flow guiding component partially blocks the first material outlet; the flow guiding component and the box shell enclose a flow guiding channel, or the flow guiding component is constructed to form a flow guiding channel; the top of the flow guiding channel is located behind the upper box liner, and the flow guiding channel is used to guide the foaming material to the rear of the upper box liner.

[0016] The refrigerator provided in this application embodiment, on the one hand, uses a flow guiding component to block part of the first material outlet at the rear end of the second insulation cavity located between the first and second lower liner, thereby reducing the filling speed of the foaming material into the second insulation cavity and allowing more foaming material to flow into the flow guiding channel; on the other hand, the top of the flow guiding channel extends to the rear of the upper liner to guide the foaming material below the flow guiding component to the rear of the upper liner, making it easier for the foaming material to flow to the rear of the upper liner and accelerating the filling rate of the first insulation cavity behind the upper liner.

[0017] In some embodiments of this application, the first lower box liner and the second lower box liner are respectively spaced apart from the upper box liner along the height direction of the box shell;

[0018] The insulation chamber also includes a third insulation chamber, which is located below the upper chamber and above the first and second lower chambers. The rear end of the third insulation chamber has a second material outlet, and the third insulation chamber is connected to the first insulation chamber through the second material outlet. The flow guiding component partially blocks the second material outlet.

[0019] With this configuration, the flow guide component partially blocks the second material outlet to reduce the diameter of the second material outlet connecting the third insulation cavity and the first insulation cavity. When filling the foaming material, the filling speed of the foaming material into the third insulation cavity can be reduced, allowing more foaming material to flow into the first insulation cavity behind the upper chamber, thereby accelerating the filling rate of the first insulation cavity behind the upper chamber.

[0020] In some embodiments of this application, the flow guiding assembly includes a first flow guiding member, which includes a flow guiding portion, a first support portion, and a second support portion; the flow guiding portion blocks a portion of the first material outlet, and the top end of the flow guiding portion extends to the rear of the upper liner; the first support portion and the second support portion are respectively disposed on the side of the flow guiding portion facing the rear wall of the housing, and the first support portion and the second support portion are respectively disposed at both ends of the flow guiding portion along the width direction of the housing;

[0021] The flow channel includes a first flow channel; the first flow channel is formed by the flow guide part, the first support part, the second support part and the rear wall of the shell, and the top of the first flow channel is located behind the upper shell.

[0022] With this configuration, the top of the first flow channel is located behind the upper chamber, so as to guide the foaming material to the rear of the upper chamber.

[0023] In some embodiments of this application, the flow guide includes:

[0024] The first guide section is connected to the first support section. The first guide section is attached to the rear wall of the first lower tank. The side of the first guide section away from the first lower tank has a first guide surface.

[0025] The second guide section is connected to the second support section. The second guide section is attached to the rear wall of the second lower box liner. The side of the second guide section opposite to the second lower box liner has a second guide surface.

[0026] The third guide section is connected between the first guide section and the second guide section. At least part of the third guide section is disposed in the second insulation cavity. The side of the third guide section facing the rear wall of the shell has a third guide surface. The third guide surface is recessed away from the rear wall of the shell compared to the first guide surface and the second guide surface.

[0027] The first flow channel includes a first channel section, a first flow guiding surface, a second flow guiding surface, a third flow guiding surface, a first support section, a second support section, and the rear wall of the housing to form the first channel section.

[0028] With this configuration, the third guide surface can be recessed away from the rear wall of the housing compared to the first and second guide surfaces, thereby increasing the size of the first channel section along the depth direction of the housing, thus increasing the flow area of ​​the first channel section, reducing the resistance to the flow of the foaming material in the first channel section, and making it easier for the foaming material to flow from bottom to top through the first channel section, thus making it easier to reach the first insulation cavity behind the upper liner.

[0029] In some embodiments of this application, along the depth direction of the box shell, there is a first distance between the rear wall of the upper box liner and the rear wall of the box shell, and a second distance between the rear walls of the first lower box liner and the second lower box liner and the rear wall of the box shell, wherein the first distance is less than the second distance.

[0030] The flow guide includes a fourth flow guide, which has a flow guide slope on the side facing the rear wall of the housing. The bottom of the flow guide slope is lower than the top of the second insulation cavity, and the top of the flow guide slope is higher than the top of the second insulation cavity. The top of the flow guide slope is closer to the rear wall of the housing than the bottom.

[0031] The first flow channel includes a second channel section, which is formed by the flow guide slope, the first support section, the second support section and the rear wall of the housing.

[0032] With this configuration, the second channel section can guide the foaming material below the top height of the second insulation cavity to the top height of the second insulation cavity, so that the foaming material can flow from bottom to top through the second channel section to the first insulation cavity behind the upper chamber.

[0033] In some embodiments of this application, the flow guide includes a fifth flow guide, which is attached to the rear wall of the upper chamber.

[0034] The fifth guide section has a fifth guide surface on the side facing the rear wall of the housing;

[0035] The first flow channel includes a third channel section, which is formed by the fifth flow guide surface, the first support section, the second support section, and the rear wall of the housing.

[0036] With this configuration, the third channel is located behind the upper chamber. The top of the third channel is further away from the third insulation cavity than the bottom, so as to guide the foaming material below the third channel upward, increasing the guiding height of the foaming material. This allows the foaming material flowing out from the top of the third channel to flow more easily to the top of the first insulation cavity and the fourth insulation cavity, improving the filling effect of the top of the first insulation cavity and the fourth insulation cavity located behind the upper chamber.

[0037] In some embodiments of this application, the flow guiding component further includes a second flow guiding member, which is connected to the top of the first flow guiding member;

[0038] The flow channel also includes a second flow channel. The second flow guide component and the shell enclose the second flow channel to form a second flow channel, or the second flow guide component is constructed to form a second flow channel. The top height of the second flow channel is higher than the top height of the first flow channel. The second flow channel is connected to the first flow channel and the first insulation cavity behind the upper shell.

[0039] With this configuration, the top height of the second flow channel can be higher than the top height of the first flow channel. The second flow guide further increases the flow height of the foaming material in the flow guide assembly, making it easier for the foaming material flowing out from the top of the second flow channel to flow to the top of the first insulation cavity and the fourth insulation cavity, thereby improving the filling effect of the foaming material at the top of the first insulation cavity and the fourth insulation cavity located behind the upper liner.

[0040] In some embodiments of this application, a first air outlet is provided on the side of the first lower box facing the second lower box, and a second air outlet is provided on the side of the second lower box facing the first lower box.

[0041] The flow guiding component is partially disposed inside the second insulation cavity. The flow guiding component located inside the second insulation cavity has an air supply duct, and the first air outlet and the second air outlet are connected through the air supply duct.

[0042] With this configuration, the air duct connects the chambers of the first and second lower compartments, allowing the cold air between them to circulate. The evaporator can simultaneously cool the storage compartments in both compartments without requiring an additional evaporator for the second lower compartment, thus reducing the number of evaporators, simplifying the structure of the refrigeration unit, and lowering the refrigerator's energy consumption.

[0043] In some embodiments of this application, the flow guiding component includes:

[0044] The first part, the first part shields the first material outlet, the first part and the box shell form a flow channel, or the flow guide assembly is constructed to form a flow channel, a part of the first part is inserted into the second insulation cavity, and the front side of the first part located in the second insulation cavity is constructed with a first groove recessed toward the rear wall of the box shell.

[0045] The second part, at least a portion of which is located inside the second insulation cavity, and the second part is located in front of the first part, and the side of the second part facing the rear wall of the shell has a second groove recessed away from the rear wall of the shell, the second groove is connected to the first groove and together form an air supply duct.

[0046] With this configuration, the first flow guide formed by the first part and the second part is easier to demold during processing and manufacturing, reducing the processing and manufacturing difficulty of the first flow guide.

[0047] In some embodiments of this application, the refrigerator further includes a drain pipe connected to the bottom of the upper liner;

[0048] The flow guiding component is constructed with a clearance notch, and part of the drainage pipe is inserted into the clearance notch.

[0049] This design avoids gaps, allowing for the provision of a channel for the drain pipe. This enables the refrigerator to install the flow guide component normally without altering the structure and connection position of the drain pipe, reducing the possibility of interference between the flow guide component and the drain pipe during installation. Attached Figure Description

[0050] 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.

[0051] Figure 1 This invention provides a first-view perspective perspective structural diagram of a refrigerator according to an embodiment of the present application.

[0052] Figure 2 It shows Figure 1 Sectional view along the middle AA direction;

[0053] Figure 3 It shows Figure 1 A second-view three-dimensional structural diagram of a refrigerator;

[0054] Figure 4 It shows Figure 1 Sectional view along the BB direction;

[0055] Figure 5 It shows Figure 3 A schematic diagram of the structure of a refrigerator after the rear wall of the cabinet has been removed;

[0056] Figure 6 It shows Figure 5 Schematic diagram of the structure of the first flow guide component;

[0057] Figure 7 A cross-sectional view along the CC direction is shown in section 1;

[0058] Figure 8 It shows Figure 5 A third-view exploded structural diagram of the first lower chamber, the second lower chamber, the first flow guide, and the third flow guide;

[0059] Figure 9 It shows Figure 5 A fourth-view exploded structural diagram of the first lower chamber, the second lower chamber, the first flow guide, and the third flow guide;

[0060] Figure 10 It shows Figure 5 A fifth-view exploded structural diagram of the first and second flow guide components;

[0061] Figure 11 It shows Figure 5 A sixth-view exploded structural diagram of the first and second flow guide components;

[0062] Figure 12 A schematic diagram of the structure of a refrigerator according to another embodiment of this application after the rear wall of the refrigerator has been removed is shown.

[0063] Explanation of reference numerals in the attached figures:

[0064] 100 - Box;

[0065] 110 - Box shell;

[0066] 111 - Inlet; 112 - Front wall of the tank;

[0067] 113 - Rear wall of the container; 114 - Side wall of the container;

[0068] 115 - Top wall of the housing; 116 - Compressor compartment;

[0069] 117 - Warehouse top wall;

[0070] 120-box liner;

[0071] 130 - Upper chamber liner;

[0072] 131 - Rear wall of the upper chamber liner; 132 - Bottom wall of the upper chamber liner;

[0073] 133 - Top wall of the upper chamber;

[0074] 140 - First lower chamber insert;

[0075] 141 - First air outlet; 142 - Rear wall of the first lower chamber liner;

[0076] 143 - Top wall of the first lower chamber; 144 - Second return air vent;

[0077] 150 - Second lower chamber liner;

[0078] 151 - Second air outlet; 152 - Rear wall of the second lower air chamber;

[0079] 153 - Top wall of the second lower chamber; 154 - First return air vent;

[0080] 160 - Insulation cavity;

[0081] 161 - First insulation cavity; 162 - Second insulation cavity;

[0082] 163 - First material inlet; 164 - Third insulation chamber;

[0083] 165 - Second material inlet; 166 - Fourth insulation chamber;

[0084] 167 - Third feed port;

[0085] 200-Flow guiding component;

[0086] 210 - Flow channel;

[0087] 211 - First flow guide channel; 212 - First channel section;

[0088] 213 - Second passage section; 214 - Third passage section;

[0089] 215 - Second flow guide channel; 216 - Third flow guide channel;

[0090] 220 - First guide vane;

[0091] 221 - Air supply duct; 222 - Avoiding gaps;

[0092] 223 - Part 1; 224 - First Groove Section;

[0093] 225 - Second part; 226 - Second groove;

[0094] 230 - Airflow guide section;

[0095] 231 - First guide section; 232 - First guide surface;

[0096] 233 - Second guide section; 234 - Second guide surface;

[0097] 235 - Third guide section; 236 - Third guide surface;

[0098] 237 - Fourth guide section; 238 - Guide slope;

[0099] 239 - Fifth guide section; 2310 - Fifth guide surface;

[0100] 240 - First Support Section;

[0101] 250 - Second support section;

[0102] 260 - Second guide vane;

[0103] 261 - First deflector; 262 - Second deflector;

[0104] 263 - Third deflector;

[0105] 270 - Third guide vane;

[0106] 271 - Return air duct;

[0107] 300 - Drain pipe. Detailed Implementation

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] To address the technical problem in related refrigerators where the foaming material has difficulty flowing to the rear of the top liner during foaming, this application provides a refrigerator that, on the one hand, uses a flow guiding component to block part of the first material outlet at the rear end of the second insulation cavity located between the first and second lower liners, thereby reducing the filling speed of the foaming material into the second insulation cavity and allowing more foaming material to flow into the flow guiding channel; on the other hand, the top of the flow guiding channel extends to the rear of the upper liner to guide the foaming material below the flow guiding component to the rear of the upper liner, making it easier for the foaming material to flow to the rear of the upper liner and accelerating the filling rate of the first insulation cavity behind the upper liner.

[0113] 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.

[0114] It should be noted that, in the embodiments of this application, "front side" refers to the side of the refrigerator facing the user when it is in normal use. "Rear side" refers to the side opposite to the front side, that is, the side of the refrigerator facing away from the user when it is in normal use.

[0115] In the embodiments of this application, the directional terms "above" and "below" refer to the vertical relationship along the height direction of the refrigerator when it is in normal use.

[0116] refer to Figure 1 The refrigerator provided in this application embodiment may include a cabinet 100 having a storage compartment, a door connected to the cabinet 100 to open and close the storage compartment, and a refrigeration device for supplying cold air to the storage compartment.

[0117] In some embodiments, a refrigeration device may be disposed within the housing 100. The refrigeration device may be a refrigeration device according to related technologies. The refrigeration device is used to provide cold air to the storage compartment to lower the temperature inside the storage compartment.

[0118] refer to Figure 1 The cabinet 100 may include a cabinet liner 120, which can form a storage compartment. The front of the storage compartment may have an access opening, through which users can take items from or place items into the storage compartment.

[0119] refer to Figure 1 The inner box 120 may include an upper inner box 130, a first lower inner box 140, and a second lower inner box 150.

[0120] The first lower compartment liner 140 and the second lower compartment liner 150 are both located below the upper compartment liner 130.

[0121] It is understood that the storage compartments corresponding to the upper compartment 130, the first lower compartment 140, and the second lower compartment 150 can be configured as refrigerator compartments, freezer compartments, or variable temperature compartments. For example, the upper compartment 130 can be configured as a refrigerator compartment, the first lower compartment 140 as a freezer compartment, and the second lower compartment 150 as a variable temperature compartment. Alternatively, the upper compartment 130 can be configured as a refrigerator compartment, and both the first lower compartment 140 and the second lower compartment 150 can be configured as freezer compartments. Alternatively, the upper compartment 130 and the first lower compartment 140 can be configured as refrigerator compartments, and the second lower compartment 150 can be configured as a freezer compartment.

[0122] refer to Figure 1 The enclosure 100 may also include a shell 110. The shell 110 is attached to the outside of the inner liner 120 to form the appearance of the enclosure 100.

[0123] The enclosure 110 may include a front wall 112, which may be located on the front side of the enclosure 110.

[0124] The enclosure 110 may also include a rear wall 113, which may be located at the rear of the enclosure 110. The rear wall 113 and the front wall 112 may be arranged opposite each other along the depth direction Y of the enclosure 100.

[0125] The enclosure 110 may also include two side walls 114, which may be arranged opposite each other along the width direction X of the enclosure 100. Both side walls 114 are connected to the front wall 112 and the rear wall 113 of the enclosure.

[0126] The enclosure 110 may also include a top wall 115, which may be located at the top of the enclosure 110. The top wall 115 is connected to the front wall 112, the rear wall 113, and the two side walls 114.

[0127] refer to Figure 1 and Figure 2 The inner liner 120 and the outer shell 110 can be combined to form an insulated cavity 160. (Reference) Figure 2 and Figure 3The outer shell 110 may be equipped with an injection port 111 for injecting foaming material. The injection port 111 is connected to the insulation cavity 160, allowing foaming material to be injected into the insulation cavity 160 through the injection port 111. The foaming material undergoes a chemical reaction within the insulation cavity 160, expanding to form foam. The foam quickly fills the insulation cavity 160. As the chemical reaction continues, the foam gradually solidifies, forming a foamed layer between the outer shell 110 and the inner liner 120. This foamed layer provides thermal insulation for the storage compartment, thereby ensuring the cooling effect within the storage compartment.

[0128] In some embodiments, reference Figure 2 The insulation cavity 160 may include a first insulation cavity 161. The first insulation cavity 161 may be located behind the upper liner 130, the first lower liner 140, and the second lower liner 150, that is, between the rear wall 131 of the upper liner 130, the rear wall 142 of the first lower liner 140, the rear wall 152 of the second lower liner 150, and the rear wall 113 of the box. The first insulation cavity 161 is located above the injection port 111 and is connected to the injection port 111. When foaming material is injected through the injection port 111, the foaming material can flow into the first insulation cavity 161 to form a foam layer in the first insulation cavity 161.

[0129] In some possible implementations of the embodiments of this application, reference is made to Figure 3 The bottom rear end of the housing 110 can be configured to form a compressor compartment 116, and some refrigeration devices can be installed in the compressor compartment 116.

[0130] refer to Figure 2 and Figure 3 The housing 110 may also include a top wall 117, which may be located at the top of the compressor compartment 116. The top wall 117 may be configured with an injection port 111, which may be located at the bottom of the first insulation cavity 161. Foaming material is injected upward through the injection port 111 so that the foaming material can flow into the first insulation cavity 161.

[0131] In some other possible implementations of the embodiments of this application, the casing 110 may further include a bottom wall, which may be disposed opposite to the top wall 115 along the height direction Z of the casing 100. The bottom wall is connected to the front wall 112, the rear wall 113 and the two side walls 114 of the casing.

[0132] The injection port 111 can be set on the bottom wall of the box. The injection port 111 can be located at the bottom of the first insulation cavity 161. The foaming material is injected upward through the injection port 111 so that the foaming material can flow into the first insulation cavity 161.

[0133] In some embodiments, reference Figure 4The insulation cavity 160 may further include a second insulation cavity 162. The first lower compartment 140 and the second lower compartment 150 may be spaced apart along the width direction X of the enclosure 100. The second insulation cavity 162 may be located between the first lower compartment 140 and the second lower compartment 150. (Reference) Figure 5 The rear end of the second insulation cavity 162 may have a first material passage 163, and the second insulation cavity 162 and the first insulation cavity 161 may be connected through the first material passage 163.

[0134] The foaming material entering the first insulation cavity 161 through the injection port 111 can flow into the second insulation cavity 162 through the first feed port 163 to form a foaming layer in the second insulation cavity 162.

[0135] In some embodiments, reference Figure 2 The insulation cavity 160 may further include a third insulation cavity 164. The first lower liner 140 and the second lower liner 150 may be respectively spaced apart from the upper liner 130 along the height direction Z of the box body 100. The third insulation cavity 164 may be located below the upper liner 130 and above the first lower liner 140 and the second lower liner 150, that is, between the top wall 143 of the first lower liner 140, the top wall 153 of the second lower liner 150, and the bottom wall 132 of the upper liner 130.

[0136] refer to Figure 5 The rear end of the third insulation cavity 164 may have a second material passage 165, and the third insulation cavity 164 is connected to the first insulation cavity 161 through the second material passage 165. The foaming material in the first insulation cavity 161 can flow into the third insulation cavity 164 through the second material passage 165 to form a foam layer in the third insulation cavity 164.

[0137] In some embodiments, reference Figure 2 The insulation cavity 160 may further include a fourth insulation cavity 166. The fourth insulation cavity 166 may be located above the upper liner 130, specifically between the top wall 115 and the top wall 133 of the upper liner 130. The rear end of the fourth insulation cavity 166 may have a third feed port 167, through which the fourth insulation cavity 166 communicates with the first insulation cavity 161. The foaming material in the first insulation cavity 161 can flow into the fourth insulation cavity 166 through the third feed port 167 to form a foam layer within the fourth insulation cavity 166.

[0138] refer to Figure 2 The refrigerator provided in this application embodiment may further include a flow guiding assembly 200. The flow guiding assembly 200 is disposed within the insulation cavity 160. At least a portion of the flow guiding assembly 200 is located within the first insulation cavity 161. The flow guiding assembly 200 may be connected to at least one of the upper liner 130, the first lower liner 140, and the second lower liner 150.

[0139] In some possible implementations of the embodiments of this application, reference is made to Figure 2 The flow guiding component 200 and the housing 110 can be enclosed to form a flow guiding channel 210. The top of the flow guiding channel 210 is located behind the upper housing 130. The flow guiding channel 210 is used to guide the foaming material to the rear of the upper housing 130, making it easier for the foaming material to flow to the rear of the upper housing 130, thereby accelerating the filling rate of the first insulation cavity 161 behind the upper housing 130.

[0140] In some other possible implementations of this application, the flow guiding component 200 itself can be configured to form a flow guiding channel 210 extending along the height direction Z of the box 100. The bottom end of the flow guiding channel 210 can communicate with the first insulation cavity 161 located below the top wall 153 of the first lower box liner 140 and the second lower box liner 150. The top end of the flow guiding channel 210 is located behind the upper box liner 130. The flow guiding channel 210 is used to guide the foaming material to the rear of the upper box liner 130, making it easier for the foaming material to flow to the rear of the upper box liner 130, thereby accelerating the filling rate of the first insulation cavity 161 behind the upper box liner 130.

[0141] In some embodiments, reference Figure 2 and Figure 5 The flow guiding component 200 can partially block the first material outlet 163, reducing the diameter of the first material outlet 163 connecting the second insulation cavity 162 and the first insulation cavity 161. When filling the foaming material, it can reduce the filling speed of the foaming material into the second insulation cavity 162, allowing more foaming material to flow into the flow guiding channel 210 and then into the first insulation cavity 161 behind the upper chamber 130. This makes it easier for the foaming material to flow to the rear of the upper chamber 130, thereby accelerating the filling rate of the first insulation cavity 161 behind the upper chamber 130.

[0142] In some embodiments, reference Figure 2 and Figure 5 The flow guiding component 200 can also partially block the second material outlet 165 to reduce the diameter of the second material outlet 165 connecting the third insulation cavity 164 and the first insulation cavity 161. When filling the foaming material, the filling speed of the foaming material into the third insulation cavity 164 can be reduced, allowing more foaming material to flow into the first insulation cavity 161 behind the upper liner 130, thereby accelerating the filling rate of the first insulation cavity 161 behind the upper liner 130.

[0143] The following embodiments are described using the example of a flow guiding component 200 and a housing 110 enclosing a flow guiding channel 210.

[0144] In some possible implementations of the embodiments of this application, reference is made to Figure 2 and Figure 5 The flow guiding component 200 may include a first flow guiding member 220, which blocks part of the first material outlet 163, and the top end of the first flow guiding member 220 extends to the rear of the upper box liner 130.

[0145] refer to Figure 5 The first guide member 220 may include a guide portion 230. The guide portion 230 may be block-shaped. The front end of the guide portion 230 may be inserted into the third insulation cavity 164, and a portion of the guide portion 230 may be attached to the rear wall 142 of the first lower chamber 140 and the rear wall 152 of the second lower chamber 150. A portion of the guide portion 230 may also be attached to the rear wall 131 of the upper chamber 130 to position the first guide member 220.

[0146] The guide section 230 partially blocks the first material outlet 163, and the top of the guide section 230 extends to the rear of the upper chamber 130.

[0147] In some embodiments, the flow guide 230 may be bonded to at least one of the rear wall 142 of the first lower liner 140, the rear wall 152 of the second lower liner 150, and the rear wall 131 of the upper liner 130 to fix the first flow guide 220 and reduce the possibility of the first flow guide 220 falling off.

[0148] refer to Figure 5 The first guide member 220 may further include a first support portion 240 and a second support portion 250. The first support portion 240 and the second support portion 250 may each be in the form of an elongated block. The first support portion 240 and the second support portion 250 may each be disposed on the side of the guide portion 230 facing the rear wall (i.e., the rear wall 113) of the housing 110, and the first support portion 240 and the second support portion 250 may each be disposed at both ends of the guide portion 230 along the width direction X of the housing 110.

[0149] Since the first support portion 240 and the second support portion 250 are located on the side of the flow guide portion 230 facing the rear wall 113 of the box, the first support portion 240 and the second support portion 250 protrude from the flow guide portion 230 toward the rear wall 113 of the box. The flow guide channel 210 may include a first flow guide channel 211, which is formed by the flow guide portion 230, the first support portion 240, the second support portion 250 and the rear wall of the box shell 110. The top end of the first flow guide channel 211 is located behind the upper box liner 130 to guide the foaming material to the rear of the upper box liner 130.

[0150] In some possible implementations of the embodiments of this application, reference is made to Figure 4 , Figure 5 and Figure 6The flow guide 230 may include a first flow guide 231. The first flow guide 231 may be a flow guide plate or a flow guide block, etc. Figure 6 The first flow guide 231 is shown as a flow guide plate. The first flow guide 231 can be connected to the first support 240. The first flow guide 231 can be attached to the rear wall 142 of the first lower tank 140, and the side of the first flow guide 231 opposite to the rear wall 142 of the first lower tank 140 has a first flow guide surface 232.

[0151] refer to Figure 4 , Figure 5 and Figure 6 The flow guide 230 may include a second flow guide 233. The second flow guide 233 may be a flow guide plate or a flow guide block, etc. Figure 6 The second flow guide 233 is shown as a flow guide plate. The second flow guide 233 can be connected to the second support 250. The second flow guide 233 can fit against the rear wall 152 of the second lower tank 150, and the side of the second flow guide 233 opposite to the second lower tank 150 has a second flow guide surface 234.

[0152] refer to Figure 4 , Figure 5 and Figure 6 The flow guide 230 may include a third flow guide 235. The third flow guide 235 may be a flow guide plate or a flow guide block, etc. Figure 6 The third guide section 235 is shown as a guide block. The third guide section 235 connects between the first guide section 231 and the second guide section 233. At least a portion of the third guide section 235 is disposed within the second insulation cavity 162 to position the first guide member 220 and partially block the first material outlet 163. By blocking the first material outlet 163, the third guide section 235 reduces the diameter of the first material outlet 163 connecting the second insulation cavity 162 and the first insulation cavity 161. During the filling of the foaming material, this reduces the filling speed of the foaming material into the second insulation cavity 162, allowing more foaming material to flow into the first guide channel 211 and then through the first guide channel 211 into the first insulation cavity 161 behind the upper chamber 130. This facilitates the flow of the foaming material to the rear of the upper chamber 130, thereby accelerating the filling rate of the first insulation cavity 161 behind the upper chamber 130.

[0153] refer to Figure 6 The third guide section 235 has a third guide surface 236 on the side facing the rear wall 113 of the box.

[0154] refer to Figure 4 The first flow channel 211 includes a first channel portion 212, a first flow guiding surface 232, a second flow guiding surface 234, a third flow guiding surface 236, a first support portion 240, a second support portion 250, and the rear wall of the housing 110 to form the first channel portion 212.

[0155] refer to Figure 4 The third guide surface 236 can be recessed away from the rear wall of the housing 110 compared to the first guide surface 232 and the second guide surface 234, so as to increase the size of the first channel portion 212 along the depth direction Y of the housing 100, thereby increasing the flow area of ​​the first channel portion 212, reducing the resistance of the foam material flowing in the first channel portion 212, and making it easier for the foam material to flow from bottom to top through the first channel portion 212, thereby making it easier to reach the first insulation cavity 161 behind the upper liner 130.

[0156] In some possible implementations of the embodiments of this application, reference is made to Figure 7 Along the depth direction Y of the casing 110, there is a first distance between the rear wall 131 of the upper liner 130 and the rear wall 113 of the casing, and a second distance between the rear wall 152 of the first lower liner 140 and the second lower liner 150 and the rear wall 113 of the casing. The first distance is smaller than the second distance, that is, the rear wall 131 of the upper liner 130 is located above the first insulation cavity 161 behind the first lower liner 140 and the second lower liner 150. The rear wall 131 of the upper liner 130 is opposite to the first insulation cavity 161 located behind the first lower liner 140 and the second lower liner 150, which increases the size of the upper liner 130 along the depth direction Y of the casing 110, thereby increasing the size of the storage chamber inside the upper liner 130 along the depth direction Y of the casing 110 and increasing the capacity of the storage chamber.

[0157] refer to Figure 5 and Figure 6 The flow guide 230 may include a fourth flow guide 237. The fourth flow guide 237 may be a flow guide plate or a flow guide block, etc. Figure 6 The fourth guide section 237 is shown as a guide block. (Reference) Figure 5 The front end of the fourth guide section 237 can be inserted into the third insulation cavity 164 to position the first guide member 220 and partially block the second material passage 165. The fourth guide section 237 blocks part of the second material passage 165 to reduce the diameter of the second material passage 165 connecting the third insulation cavity 164 and the first insulation cavity 161. When filling with foaming material, this reduces the filling speed of the foaming material into the third insulation cavity 164, allowing more foaming material to flow into the first insulation cavity 161 behind the upper liner 130, thereby accelerating the filling rate of the first insulation cavity 161 behind the upper liner 130.

[0158] refer to Figure 6 and Figure 7The fourth flow guide 237 has a flow guide slope 238 on the side facing the rear wall 113 of the box. The bottom height of the flow guide slope 238 is lower than the top height of the second insulation cavity 162, and the top height of the flow guide slope 238 is higher than the top height of the second insulation cavity 162. The flow guide slope 238 guides the foaming material below the top height of the second insulation cavity 162 to the top height of the second insulation cavity 162.

[0159] refer to Figure 7 The first flow channel 211 may include a second channel portion 213. The flow guide slope 238, the first support portion 240, the second support portion 250 and the rear wall 113 of the box enclose the second channel portion 213. The second channel portion 213 can guide the foaming material below the top height of the second insulation cavity 162 to the top height of the second insulation cavity 162, so that the foaming material can flow from bottom to top through the second channel portion 213 to the first insulation cavity 161 behind the upper box liner 130.

[0160] In the implementation where the rear wall 131 of the upper chamber 130 is located above the first insulation cavity 161 behind the first lower chamber 140 and the second lower chamber 150, refer to Figure 7 The top of the guide slope 238 can be closer to the rear wall of the housing 110 than the bottom, so as to reduce the distance between the top of the guide slope 238 and the rear wall of the housing 110, so that the foaming material at the bottom of the guide slope 238 can flow upward along the guide slope 238 toward the first insulation cavity 161 behind the upper housing 130, making it easier for the foaming material to flow into the first insulation cavity 161 behind the upper housing 130.

[0161] refer to Figure 5 In the implementation of the flow guide 230 including the first flow guide 231, the second flow guide 233, and the third flow guide 235, the fourth flow guide 237 can be connected to the top of the whole formed by the first flow guide 231, the second flow guide 233, and the third flow guide 235, and the second channel 213 communicates with the first channel 212. The foaming material flowing upward along the first flow guide surface 232, the second flow guide surface 234, and the third flow guide surface 236 can also flow along the flow guide slope 238 toward the first insulation cavity 161 behind the upper liner 130. Under the guidance of the flow guide slope 238, the foaming material can more easily flow into the first insulation cavity 161 behind the upper liner 130.

[0162] In some possible implementations of the embodiments of this application, reference is made to Figure 5 The flow guide 230 may further include a fifth flow guide 239, which may be a flow guide plate or a flow guide block, etc. Figure 5 The fifth flow guide 239 is shown as a flow guide plate. The fifth flow guide 239 can be attached to the rear wall 131 of the upper tank liner 130.

[0163] refer to Figure 6 and Figure 7 The fifth guide section 239 may have a fifth guide surface 2310 on the side facing the rear wall 113 of the box.

[0164] refer to Figure 7 The first flow channel 211 may include a third channel portion 214, which is formed by the fifth flow surface 2310, the first support portion 240, the second support portion 250, and the rear wall 113 of the box. The third channel portion 214 is located behind the upper box liner 130. The top end of the third channel portion 214 is further away from the third insulation cavity 164 than the bottom end, so as to further guide the foaming material below the third channel portion 214 upward, thereby increasing the flow height of the foaming material. This allows the foaming material flowing out from the top end of the third channel portion 214 to flow more easily to the top of the first insulation cavity 161 and the fourth insulation cavity 166, improving the filling effect of the top of the first insulation cavity 161 and the fourth insulation cavity 166 located behind the upper box liner 130.

[0165] In some possible implementations of the embodiments of this application, the refrigeration device may include an evaporator. When the refrigeration device is working, the evaporator absorbs heat from the storage chamber to reduce the temperature inside the storage chamber.

[0166] The evaporator can be installed in either the first lower chamber 140 or the second lower chamber 150. Taking the evaporator installed in the first lower chamber 140 as an example, since the evaporator is installed inside the first lower chamber 140, the evaporator can cool the storage compartment inside the first lower chamber 140.

[0167] refer to Figure 8 and Figure 9 A first air outlet 141 may be constructed on the side of the first lower box liner 140 facing the second lower box liner 150, and a second air outlet 151 may be constructed on the side of the second lower box liner 150 facing the first lower box liner 140.

[0168] refer to Figure 7 , Figure 8 and Figure 9 A portion of the first flow guide 220 can be disposed within the second insulation cavity 162. The first flow guide 220 located within the second insulation cavity 162 can be configured with an air supply duct 221. The first air outlet 141 and the second air outlet 151 can be connected through the air supply duct 221.

[0169] The refrigerator may also include a fan, which directs air from the first lower compartment 140 through the first air outlet 141 to the air duct 221, and then through the air duct 221 to the second air outlet 151 into the second lower compartment 150, thereby cooling the storage compartment in the second lower compartment 150. This allows the evaporator to simultaneously cool the storage compartments in both the first and second lower compartments 140 and 150, eliminating the need for an additional evaporator in the second lower compartment 150, reducing the number of evaporators, simplifying the structure of the refrigeration unit, and lowering the refrigerator's energy consumption.

[0170] In some possible implementations of the embodiments of this application, reference is made to Figure 7 , Figure 10 and Figure 11 The first flow guide 220 may include a first portion 223. The first portion 223 blocks a portion of the first material outlet 163. The first portion 223 and the housing 110 enclose a first flow guide channel 211, or the flow guide assembly 200 is constructed to form a first flow guide channel 211. A portion of the first portion 223 is inserted into the second insulation cavity 162, and the front side of the first portion 223 located in the second insulation cavity 162 has a first groove 224 recessed toward the rear wall of the housing 110.

[0171] refer to Figure 7 , Figure 10 and Figure 11 The first airflow guide 220 may further include a second portion 225. At least a portion of the second portion 225 is located within the second insulation cavity 162, and the second portion 225 is located in front of the first portion 223. The side of the second portion 225 facing the rear wall of the housing 110 has a second groove 226 recessed away from the rear wall of the housing 110. The second groove 226 connects with the first groove 224 and encloses to form an air supply duct 221.

[0172] The first part 223 has a first groove 224, which makes it easier to demold the first part 223 during processing and manufacturing. The second part 225 has a second groove 226, which makes it easier to demold the second part 225 during processing and manufacturing.

[0173] Compared with the air duct 221 that is integrated with the first guide member 220, in this embodiment, the first guide member 220 formed by the first part 223 and the second part 225 is easier to demold during processing and manufacturing, which reduces the processing and manufacturing difficulty of the first guide member 220.

[0174] In some possible implementations of the embodiments of this application, reference is made to Figure 12The refrigerator may also include a drain pipe 300, which is connected to the bottom of the upper liner 130 and communicates with the storage compartment inside the upper liner 130. Condensation on the inner wall of the storage compartment of the upper liner 130 collects at the bottom of the storage compartment and is discharged through the drain pipe 300.

[0175] The flow guiding component 200 or the first flow guiding member 220 may be constructed with a clearance notch 222. The clearance notch 222 corresponds to the position of the drain pipe 300. Part of the drain pipe 300 passes through the clearance notch 222. The clearance notch 222 can reserve a channel for the drain pipe 300, so that the flow guiding component 200 can still be installed normally in the refrigerator without changing the structure and connection position of the drain pipe 300, thereby reducing the possibility of interference between the flow guiding component 200 and the drain pipe 300 during installation.

[0176] In some possible implementations of the embodiments of this application, reference is made to Figure 2 , Figure 5 and Figure 7 The flow guiding component 200 may also include a second flow guiding member 260, which may be connected to the top of the first flow guiding member 220.

[0177] The flow channel 210 may also include a second flow channel 215.

[0178] In some embodiments, the second flow guide 260 and the rear wall 113 of the box can be enclosed to form a second flow guide channel 215.

[0179] For example, refer to Figure 5 and Figure 10 The second guide member 260 may include a first guide plate 261, a second guide plate 262 and a third guide plate 263.

[0180] The first guide plate 261 can be attached to the rear wall 131 of the upper liner 130 and the top of the first guide member 220 on the side away from the rear wall 113 of the liner, with the top of the first guide plate 261 located above the first guide member 220.

[0181] The first guide plate 261 can be adhered to the side of the first guide member 220 away from the rear wall 113 of the box, or adhered to the rear wall 131 of the upper box liner 130. The two ends of the first guide plate 261 along the width direction X of the box body 100 can be bent towards the rear wall 113 to form the second guide plate 262 and the third guide plate 263, respectively. The second guide plate 262 and the second guide plate 263 can be respectively attached to the two ends of the first guide member 220 along the width direction X of the box body 100.

[0182] The first guide plate 261, the second guide plate 262, the third guide plate 263, and the rear wall 113 of the box enclose a second guide channel 215. The second guide channel 215 is connected to the first guide channel 211 and the first insulation cavity 161 behind the upper box liner 130. The top height of the second guide channel 215 can be higher than the top height of the first guide channel 211. The second guide component 260 further increases the guide height of the guide assembly 200 for the foaming material, making it easier for the foaming material flowing out from the top of the second guide channel 215 to flow to the top of the first insulation cavity 161 and the fourth insulation cavity 166, thereby improving the filling effect of the foaming material at the top of the first insulation cavity 161 and the fourth insulation cavity 166 located behind the upper box liner 130.

[0183] In other embodiments, the second guide member 260 may be configured to form a second guide channel 215. Exemplarily, the second guide member 260 may be tubular, with a portion of it fitted over the top of the first guide member 220. The first guide member 220 may be adhered to the rear wall 131 of the upper liner 130 and the first guide member 220. The embodiments of this application do not limit the cross-sectional shape of the second guide member 260, as long as it is compatible with the shape of the first guide member 220 and can be fitted over the top of the first guide member 220.

[0184] The inner cavity of the second guide member 260, located above the first guide member 220, forms a second guide channel 215. The second guide channel 215 is connected to the first guide channel 211 and the first insulation cavity 161 behind the upper liner 130. The top height of the second guide channel 215 is higher than the top height of the first guide channel 211. The second guide member 260 further increases the guide height of the guide assembly 200 for the foaming material, making it easier for the foaming material flowing out from the top of the second guide channel 215 to flow to the top of the first insulation cavity 161 and the fourth insulation cavity 166, thereby improving the filling effect of the foaming material at the top of the first insulation cavity 161 and the fourth insulation cavity 166 behind the upper liner 130.

[0185] In some possible implementations of the embodiments of this application, reference is made to Figure 2 , Figure 5 and Figure 7 The flow guiding component 200 may also include a third flow guiding component 270.

[0186] The third guide member 270 is located below the first guide member 220. The front end of the third guide member 270 can be inserted into the second insulation cavity 162 to position the third guide member 270. Part of the third guide member 270 is located in the first insulation cavity 161, and the rear end of the third guide member 270 abuts against the rear wall 113 of the box.

[0187] The flow channel 210 may also include a third flow channel 216, which is formed by the third flow guide 270 and the rear wall 113 of the box. The third flow channel 216 is located above the injection port 111, and the top end of the third flow channel 216 is closer to the bottom end of the first flow channel 211 than the bottom end.

[0188] During the filling of the foaming material, the foaming material is injected upwards through the injection port 111. Part of the foaming material flows upwards through the third guide channel 216 to the first insulation cavity 161 between the third guide member 270 and the first guide member 220. As the foaming material is continuously injected, it continues to flow upwards to the first guide channel 211 and then upwards along the first guide channel 211 into the first insulation cavity 161 behind the upper liner 130. The third guide channel 216 makes it easier for the foaming material to flow into the first guide channel 211, and thus more easily into the first insulation cavity 161 behind the upper liner 130, improving the filling efficiency of the foaming material in the first insulation cavity 161 behind the upper liner 130.

[0189] In some possible implementations of the embodiments of this application, reference is made to Figure 8 and Figure 9 A first return air vent 154 may be constructed on the side of the second lower chamber 150 facing the first lower chamber 140. A second return air vent 144 may be constructed on the side of the first lower chamber 140 facing the second lower chamber 150.

[0190] refer to Figure 7 The third air guide 270 can be partially disposed within the second insulation cavity 162, and the third air guide 270 located within the second insulation cavity 162 can be configured with a return air duct 271. The first return air inlet 154 and the second return air inlet 144 can be connected through the return air duct 271.

[0191] Taking the evaporator located in the first lower chamber 140 as an example, the fan is used to direct air from the first air outlet 141 to the air supply duct 221, and then from the second air outlet 151 into the second lower chamber 150 to cool the storage compartment within the second lower chamber 150. The fan also directs air from the second lower chamber 150 from the first return air outlet 154 to the return air duct 271, and then from the second return air outlet 144 into the first lower chamber 140, allowing air from the second lower chamber 150 to flow back into the first lower chamber 140, thus circulating and cooling the second lower chamber 150.

[0192] 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.

[0193] 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 described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, include: The enclosure (100) includes: The housing (110) is constructed with an injection port (111) for injecting foaming material; A box liner (120) is disposed inside a box shell (110), and the box liner (120) includes: Upper chamber liner (130); The first lower compartment (140) is located below the upper compartment (130); The second lower compartment (150) is located below the upper compartment (130) and is spaced apart from the first lower compartment (140) along the width direction of the casing (110). The inner liner (120) and the outer shell (110) enclose a heat-insulating cavity (160), the heat-insulating cavity (160) comprising: The first insulation cavity (161) is located behind the upper chamber (130), the first lower chamber (140) and the second lower chamber (150). The first insulation cavity (161) is located above the injection port (111) and is connected to the injection port (111). The second insulation cavity (162) is located between the first lower chamber (140) and the second lower chamber (150). The rear end of the second insulation cavity (162) has a first material outlet (163). The second insulation cavity (162) is connected to the first insulation cavity (161) through the first material outlet (163). A flow guiding component (200) is disposed inside the insulation cavity (160), and the flow guiding component (200) partially blocks the first material outlet (163); the flow guiding component (200) and the shell (110) enclose a flow guiding channel (210), or the flow guiding component (200) is constructed to form a flow guiding channel (210); the top end of the flow guiding channel (210) is located behind the upper liner (130), and the flow guiding channel (210) is used to guide the foaming material to the rear of the upper liner (130).

2. The refrigerator according to claim 1, characterized in that, The first lower box liner (140) and the second lower box liner (150) are respectively spaced apart from the upper box liner (130) along the height direction of the box shell (110); The insulation cavity (160) further includes a third insulation cavity (164), which is located below the upper chamber (130) and above the first lower chamber (140) and the second lower chamber (150). The rear end of the third insulation cavity (164) has a second material outlet (165), which is connected to the first insulation cavity (161) through the second material outlet (165). The flow guiding component (200) partially blocks the second material outlet (165).

3. The refrigerator according to claim 1, characterized in that, The flow guiding assembly (200) includes a first flow guiding member (220), which includes a flow guiding part (230), a first support part (240), and a second support part (250). The flow guiding part (230) partially blocks the first material outlet (163), and the top end of the flow guiding part (230) extends to the rear of the upper box liner (130). The first support part (240) and the second support part (250) are respectively disposed on the side of the flow guiding part (230) facing the rear wall (113) of the box shell (110), and the first support part (240) and the second support part (250) are respectively disposed at both ends of the flow guiding part (230) along the width direction of the box shell (110). The flow channel (210) includes a first flow channel (211); the flow guide part (230), the first support part (240), the second support part (250) and the rear wall (113) of the shell (110) enclose the first flow channel (211), and the top end of the first flow channel (211) is located behind the upper shell (130).

4. The refrigerator according to claim 3, characterized in that, The flow guide (230) includes: The first guide section (231) is connected to the first support section (240). The first guide section (231) is attached to the rear wall (142) of the first lower box liner (140). The first guide section (231) has a first guide surface (232) on the side away from the first lower box liner (140). The second guide section (233) is connected to the second support section (250). The second guide section (233) is attached to the rear wall (152) of the second lower box liner (150). The second guide section (233) has a second guide surface (234) on the side away from the second lower box liner (150). A third flow guide (235) is connected between the first flow guide (231) and the second flow guide (233). At least a portion of the third flow guide (235) is disposed in the second heat preservation cavity (162). The third flow guide (235) has a third flow guide surface (236) on the side facing the rear wall (113) of the housing (110). The third flow guide surface (236) is recessed from the rear wall (113) of the housing (110) compared to the first flow guide surface (232) and the second flow guide surface (234). The first flow channel (211) includes a first channel portion (212), which is formed by the first flow guiding surface (232), the second flow guiding surface (234), the third flow guiding surface (236), the first support portion (240), the second support portion (250), and the rear wall (113) of the housing (110).

5. The refrigerator according to claim 3, characterized in that, Along the depth direction of the box shell (110), there is a first distance between the rear wall (131) of the upper box liner (130) and the rear wall (113) of the box shell (110), and there is a second distance between the rear walls (152) of the first lower box liner (140) and the second lower box liner (150) and the rear wall (113) of the box shell (110), and the first distance is smaller than the second distance; The flow guide (230) includes a fourth flow guide (237), which has a flow guide slope (238) on the side facing the rear wall (113) of the housing (110). The bottom height of the flow guide slope (238) is lower than the top height of the second heat insulation cavity (162), and the top height of the flow guide slope (238) is higher than the top height of the second heat insulation cavity (162). The top of the flow guide slope (238) is closer to the rear wall (113) of the housing (110) than the bottom. The first flow channel (211) includes a second channel portion (213), which is formed by the flow guiding slope (238), the first support portion (240), the second support portion (250) and the rear wall (113) of the housing (110).

6. The refrigerator according to claim 3, characterized in that, The flow guide (230) includes a fifth flow guide (239), which is attached to the rear wall (131) of the upper box liner (130); The fifth flow guide (239) has a fifth flow guide surface (2310) on the side facing the rear wall (113) of the housing (110); The first flow channel (211) includes a third channel portion (214), which is formed by the fifth flow guiding surface (2310), the first support portion (240), the second support portion (250) and the rear wall (113) of the housing (110).

7. The refrigerator according to any one of claims 3-6, characterized in that, The flow guiding assembly (200) further includes a second flow guiding member (260), which is connected to the top of the first flow guiding member (220); The flow channel (210) further includes a second flow channel (215). The second flow guide (260) and the shell (110) enclose the second flow channel (215). Alternatively, the second flow guide (260) is constructed to form the second flow channel (215). The top height of the second flow channel (215) is higher than the top height of the first flow channel (211). The second flow channel (215) is connected to the first flow channel (211) and the first heat insulation cavity (161) behind the upper shell (130).

8. The refrigerator according to any one of claims 1-6, characterized in that, The first lower chamber (140) has a first air outlet (141) on the side facing the second lower chamber (150), and the second lower chamber (150) has a second air outlet (151) on the side facing the first lower chamber (140). Part of the flow guiding component (200) is disposed in the second heat insulation cavity (162). The flow guiding component (200) located in the second heat insulation cavity (162) is constructed with an air supply duct (221). The first air outlet (141) and the second air outlet (151) are connected through the air supply duct (221).

9. The refrigerator according to claim 8, characterized in that, The flow guiding component (200) includes: The first part (223) blocks the first material outlet (163). The first part (223) and the box shell (110) enclose a flow channel (210). Alternatively, the flow guide assembly (200) is constructed to form a flow channel (210). A portion of the first part (223) is inserted into the second heat insulation cavity (162). The front side of the first part (223) located in the second heat insulation cavity (162) is constructed with a first groove (224) recessed toward the rear wall (113) of the box shell (110). The second part (225) is located at least partly within the second insulation cavity (162) and is located in front of the first part (223). The second part (225) has a second groove (226) recessed away from the rear wall (113) of the housing (110) on the side facing the rear wall (113) of the housing (110). The second groove (226) is connected to the first groove (224) and forms the air supply duct (221).

10. The refrigerator according to any one of claims 1-6, characterized in that, The refrigerator also includes a drain pipe (300) connected to the bottom of the upper liner (130); The flow guiding component (200) is configured with a clearance notch (222), and a portion of the drain pipe (300) passes through the clearance notch (222).

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