Refrigerator

Abstract

The utility model relates to refrigeration equipment and discloses a refrigerator which comprises an inner container, an evaporator, a fan housing and a centrifugal fan. Wherein a refrigeration space is defined in the inner container, and the inner container comprises a back plate extending in the vertical direction; the evaporator is arranged on the peripheral side of the inner container. The fan housing covers the inner wall of the back plate, a containing space is defined between the fan housing and the back plate, the fan housing extends along a first cover plate in the vertical direction, an air inlet is formed in the first cover plate, and an air outlet is formed between the bottom end of the first cover plate and the back plate; the centrifugal fan corresponds to the air inlet and is arranged in the containing space. The centrifugal fan is used for driving airflow in the refrigeration space to circularly flow between the refrigeration space and the containing space. By means of the refrigerator, the uniformity of the temperature in the refrigerator can be improved, and the refrigeration effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, for example, to a refrigerator. Background Art

[0002] A refrigerator is a refrigeration device that keeps a constant low temperature. It is also a household appliance that keeps food or other items at a constant low temperature. With the development of science and technology and the improvement of people's living standards, refrigerators have become a necessity.

[0003] In the related art, an evaporator tube is arranged on the periphery of the inner tank of the refrigerator, and the cold energy released by the evaporator tube is used to cool the inner tank, thereby further maintaining the space inside the inner tank at a preset low temperature state.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The temperature near the side wall of the inner tank in the refrigerator is low and easy to freeze. The temperature far away from the inner tank and close to the evaporator is relatively high, and the cold air inside sinks and gathers. Therefore, the temperature inside the refrigerator is uneven and the cooling effect is poor.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a refrigerator to improve the uniformity of temperature inside the refrigerator and enhance the refrigeration effect.

[0009] In some embodiments, the refrigerator includes an inner tank, an evaporator, a fan cover and a centrifugal fan; wherein, the interior of the inner tank defines a refrigerated space, and the inner tank includes a back plate extending vertically; the evaporator is arranged on the outer peripheral side of the inner tank; the fan cover covers the inner wall of the back plate, and a storage space is enclosed between the fan cover and the back plate, wherein the fan cover includes a first cover plate extending vertically, an air inlet is provided on the first cover plate, and an air outlet is formed between the bottom end of the first cover plate and the back plate; a centrifugal fan is arranged in the storage space corresponding to the air inlet, and the centrifugal fan is used to drive the airflow in the refrigerated space to circulate between the refrigerated space and the storage space.

[0010] In some embodiments, the refrigerator further includes: an air guide rib, which is disposed on the first panel surface of the first cover plate and includes a first end and a second end; the first end and the second end are arranged at the bottom end of the first cover plate, and the air guide rib extends from the first end to the second end and is arranged around the air inlet, and an air outlet channel is defined between the first end and the second end; wherein the first panel surface faces the back plate.

[0011] In some embodiments, the air guide ribs of the refrigerator are constructed in a spiral shape, wherein the spiral axis of the air guide ribs extending vertically is coaxially arranged with the central axis of the air inlet extending vertically.

[0012] In some embodiments, the refrigerator further includes a mounting seat and a mounting slot; wherein the mounting seat is arranged on the back plate; the mounting slot is opened on the mounting seat, and the mounting slot is constructed to have a contour shape matching the contour shape of the wind guide rib, and the wind guide rib can be inserted into the mounting slot.

[0013] In some embodiments, the refrigerator further includes: a purification module, disposed in the air outlet channel, for purifying the airflow passing through the air outlet channel.

[0014] In some embodiments, the purification module includes a shell and a release part; the interior of the shell defines a accommodating cavity, and the shell is provided with a release hole to connect the accommodating cavity with the air outlet channel; the release part is arranged in the accommodating cavity, and the release part is used to release the sterilization substance to purify the airflow in the air outlet channel.

[0015] In some embodiments, the purification component is arranged close to the spiral shaft, and divides the air outlet channel into a first air duct and a second air duct, and divides the air outlet into a first sub-air outlet and a second sub-air outlet correspondingly, wherein the first sub-air outlet corresponds to the first air duct, and the second sub-air outlet corresponds to the second air duct; the refrigerator also includes: a guide portion, which is arranged on the back plate and arranged below the fan cover corresponding to the first sub-air outlet, the guide portion including a guide surface facing the first sub-air outlet, and the guide surface is used to guide the airflow of the first sub-air outlet to flow toward the front side of the fan cover.

[0016] In some embodiments, the guide surface includes: a first side end, arranged close to the first sub-air outlet; a second side end, opposite to the first side end; the guide surface is arranged to extend downwardly and obliquely from the first side end to the second side end, along a direction away from the back panel.

[0017] In some embodiments, the guide surface is configured as an arc-shaped guide surface.

[0018] In some embodiments, the guide portion is integrally formed with the back plate.

[0019] The refrigerator provided by the embodiment of the present disclosure can achieve the following technical effects:

[0020] The evaporator surrounded by the outer peripheral side of the inner tank transfers cold energy to the refrigerated space through the inner tank, and a storage space is defined by the back plate and the fan cover. A centrifugal fan is arranged in the storage space. Under the action of the centrifugal fan, the airflow in the refrigerated room can be driven into the storage space through the air inlet, and further flow downward to the refrigerated space through the air outlet. In this way, driven by the centrifugal fan, the airflow in the refrigerated room can circulate, thereby improving the temperature uniformity in the refrigerated room, improving the refrigeration effect, and improving energy efficiency.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0024] Figure 2 is a schematic structural diagram of an inner container provided by an embodiment of the present disclosure;

[0025] Figure 3 is a schematic structural diagram of another inner container provided by an embodiment of the present disclosure;

[0026] Figure 4 yes Figure 3 A partial enlarged schematic diagram of

[0027] Figure 5 is an exploded schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0028] Figure 6 is an exploded schematic diagram of a fan housing and a centrifugal fan provided by an embodiment of the present disclosure;

[0029] Figure 7 is a schematic structural diagram of a mounting base provided by an embodiment of the present disclosure;

[0030] Figure 8 It is a structural schematic diagram of a purification module provided in an embodiment of the present disclosure.

[0031] Reference numerals:

[0032] 100, liner; 101, refrigeration space; 110, back plate; 200, fan cover; 201, air inlet; 202, air outlet; 2021, first sub-air outlet; 2022, second sub-air outlet; 203, air outlet channel; 2031, first air duct; 2032, second air duct; 210, first cover plate; 220, air guide ribs; 221, first end; 222, second end; 300, centrifugal fan; 401, slot; 402, buckle; 410, mounting seat; 420, mounting slot; 500, purification module; 510, shell; 511, release hole; 600, guide part; 610, guide surface; 611, first side end; 612, second side end. DETAILED DESCRIPTION

[0033] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0034] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0035] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] Unless otherwise stated, the term "plurality" means two or more.

[0038] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0039] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0041] A refrigerator is a refrigeration device that keeps a constant low temperature. It is also a household appliance that keeps food or other items at a constant low temperature. With the development of science and technology and the improvement of people's living standards, refrigerators have become a necessity.

[0042] In the related art, an evaporator tube is arranged on the periphery of the inner tank of the refrigerator, and the cold energy released by the evaporator tube is used to cool the inner tank, thereby further maintaining the space inside the inner tank at a preset low temperature state.

[0043] However, the temperature near the side wall of the inner tank in the refrigerator is low and easy to freeze, while the temperature near the evaporator far away from the inner tank is relatively high, and the cold air inside sinks and gathers. Therefore, the temperature inside the refrigerator is uneven and the cooling effect is poor.

[0044] Therefore, the embodiments of the present disclosure provide a refrigerator to improve the uniformity of the temperature inside the refrigerator and enhance the refrigeration effect.

[0045] Combination Figures 1 to 8As shown, the refrigerator provided by the embodiment of the present disclosure includes an inner tank 100, an evaporator, a fan housing 200 and a centrifugal fan 300; wherein, a refrigeration space 101 is defined inside the inner tank 100, and the inner tank 100 includes a back plate 110 extending vertically; the evaporator is arranged on the outer peripheral side of the inner tank 100; the fan housing 200 covers the inner wall of the back plate 110, and a storage space is enclosed between the fan housing 200 and the back plate 110, wherein the fan housing 200 includes a first cover plate 210 extending vertically, an air inlet 201 is provided on the first cover plate 210, and an air outlet 202 is formed between the bottom end of the first cover plate 210 and the back plate 110; the centrifugal fan 300 is arranged in the storage space corresponding to the air inlet 201, and the centrifugal fan 300 is used to drive the airflow in the refrigeration space 101 to circulate between the refrigeration space 101 and the storage space.

[0046] Optionally, an evaporator is provided on the outer periphery of the inner liner 100, and the refrigerant flowing in the evaporator can transfer the cold to the inner liner 100, and further, the inner liner 100 transfers the cold to the refrigerated space. Optionally, in order to ensure the refrigeration effect of the evaporator on the refrigerated space, the outer periphery of the evaporator is entirely coated with an insulation layer around the inner liner 100. Optionally, the insulation layer is foamed.

[0047] Optionally, the liner 100 includes a back plate 110 extending vertically, a fan housing 200 is covered on the back plate 110, and a centrifugal fan 300 is arranged in a receiving space formed between the fan housing 200 and the back plate 110, wherein the receiving space is connected to the refrigerated space. Under the action of the centrifugal fan 300 rotating and forming a negative pressure zone, the air in the refrigerated space 101 enters the centrifugal fan, and then the airflow flows back to the refrigerated space 101 under the action of the centrifugal fan 300, so as to drive the fluidity of the airflow in the refrigerated space 101, and then the low-temperature airflow forms a flow in the refrigerated space 101, thereby ensuring the temperature uniformity of each position in the refrigerated space 101.

[0048] Optionally, the air inlet 201 is formed on the first cover plate 210 of the fan housing 200, and the gap between the bottom end of the first cover plate 210 and the back plate 110 forms the air outlet 202. In this way, a short circuit of airflow between the air inlet 201 and the air outlet 202 can be avoided.

[0049] Optionally, combined Figure 4 , Figure 6 As shown, a slot 401 is provided on the back plate 110, and a buckle 402 is provided on the fan housing 200. The buckle 402 is connected to the slot 401 to facilitate the disassembly or replacement of the fan housing 200, and at the same time, it is convenient to repair or replace the centrifugal fan 300.

[0050] Optionally, the back plate 110 is formed with an accommodating groove in a direction away from the refrigerated space 101 , and the fan cover 200 covers the accommodating groove to avoid occupying the space of the refrigerated space 101 .

[0051] In the refrigerator provided by the embodiment of the present disclosure, the evaporator surrounded by the outer peripheral side of the inner tank transfers cold energy to the refrigerated space through the inner tank, and a storage space is defined by the back plate and the fan cover. A centrifugal fan is arranged in the storage space. Under the action of the centrifugal fan, the airflow in the refrigerated compartment can be driven to enter the storage space through the air inlet, and further flow downward to the refrigerated space through the air outlet. In this way, driven by the centrifugal fan, the airflow in the refrigerated compartment can circulate, thereby improving the temperature uniformity in the refrigerated compartment, improving the refrigeration effect, and improving energy efficiency.

[0052] Optionally, combined Figure 6 As shown, the refrigerator also includes an air guide rib 220, which is disposed on the first plate surface of the first cover plate 210 and includes a first end 221 and a second end 222; the first end 221 and the second end 222 are arranged at the bottom end of the first cover plate 210, and the air guide rib 220 extends from the first end 221 to the second end 222 around the air inlet 201, and an air outlet channel 203 is defined between the first end 221 and the second end 222; wherein the first plate surface faces the back plate 110.

[0053] By means of the wind guide ribs 220 arranged around the air inlet 201, the air flow flowing in through the air inlet 201 can be guided and limited. The first end 221 and the second end 222 are arranged at the bottom end of the first cover plate 210, and the two can define an air outlet channel 203, so that the outlet air flow can flow downward to drive the air flow in the lower part of the refrigerated space 101 to circulate.

[0054] Optionally, the air guide rib 220 is constructed in a spiral shape, wherein a spiral axis of the air guide rib 220 extending vertically is coaxially arranged with a central axis of the air inlet 201 extending vertically.

[0055] That is to say, the air guide rib 220 is constructed in a spiral shape, and the air guide rib 220 can define an opening shape with a gradually expanding cross-section extending in the direction of the air outlet 202. In this way, it will not cause direct impact on the inner tank, thereby avoiding or reducing large vibrations and noise generated during air circulation.

[0056] Optionally, the vortex axis extending vertically along the air guide rib 220 is coaxially arranged with the central axis extending vertically along the air inlet 201, which can further reduce the large vibration and noise generated during air circulation, thereby improving the safety of the centrifugal fan 300 during operation and helping to increase its service life.

[0057] Optionally, combined Figure 6 , Figure 8As shown, the refrigerator also includes a mounting seat 410 and a mounting groove 420; wherein, the mounting seat 410 is arranged on the back plate 110; the mounting groove 420 is opened on the mounting seat 410, and the mounting groove 420 is constructed to have a contour shape matching the contour shape of the wind guide rib 220, and the wind guide rib 220 can be inserted into the mounting groove 420.

[0058] By cooperating between the mounting groove 420 on the mounting seat 410 and the wind guide rib 220, a relatively sealed airflow channel in the fan cover 200 can be defined, so that air flows to the air outlet channel 203; in addition, by plugging and fitting between the wind guide rib 220 and the mounting groove 420, the stability of the fan cover 200 can be further improved.

[0059] Optionally, combined Figure 6 , Figure 7 As shown, the refrigerator further includes a purification module 500. The purification module 500 is disposed in the air outlet channel 203, and is used to purify the airflow passing through the air outlet channel 203.

[0060] Since the refrigerated space 101 is usually in a closed environment, bacteria are easily grown in the refrigerated space 101 when the refrigerator is in use for a long time, thereby causing the food stored therein to be contaminated. The purification module 500 disposed in the air outlet channel 203 can purify the airflow in the refrigerated space 101 to improve the cleanliness of the airflow in the refrigerated space 101 and to improve the safety of the food stored in the refrigerated space 101.

[0061] Optionally, the purification module 500 includes a shell 510 and a release portion; the interior of the shell 510 defines a accommodating cavity, and the shell 510 is provided with a release hole 511 to connect the accommodating cavity with the air outlet channel 203; the release portion is arranged in the accommodating cavity, and the release portion is used to release the sterilization substance to purify the airflow in the air outlet channel 203.

[0062] Optionally, the sterilizing substance in the release part can be diffused to the entire air outlet channel 203 to sterilize and purify the air flowing through the air outlet channel 203. Furthermore, since the sterilizing substance released by the release part can be diffused, a purification module with a smaller volume can be placed in the air outlet channel 203 to reduce the occupied space of the purification module 500, thereby improving the fluidity of the air in the air outlet channel 203.

[0063] Optionally, the bactericidal substance released by the release part can be made of plant-extracted slow-release essential oil (including plant essential oil or other extracts), and substances with slow-release characteristics and antibacterial effects can be added. Among them, plant-extracted slow-release essential oil is a new type of antibacterial active ingredient derived from plants. The volatile aromatic compounds in the plant-extracted slow-release essential oil react chemically with pollutants in the air to decompose or convert harmful substances into harmless substances. Plant-extracted slow-release essential oil is non-toxic and harmless, and has bactericidal, antibacterial, antioxidant and deodorizing effects. The bactericidal substances released by plant-extracted slow-release essential oil can destroy cell walls and cell membrane structures, leading to the loss of nutrients in cells; secondly, it can destroy DNA / RNA structures and inhibit gene expression; further, it destroys the mitochondrial structure in cells, inhibits the respiration of microorganisms, and causes cell hypoxia and death.

[0064] Plant-based sterilization technology has the advantage of wide application. First, it is volatile and can diffuse into the air and then cover the surface of every corner of the refrigerator, forming a sterilization without dead ends. Second, pure natural active bactericidal ingredients rely on physiological activity for sterilization rather than oxidation, which can avoid the impact of general sterilization and purification technology on the environment inside the refrigerator.

[0065] Optionally, driven by the centrifugal fan 300, the sterilizing substance released by the release portion can be gradually diffused to every corner of the entire refrigerated space along with the air to improve the cleanliness of the air.

[0066] Optionally, the purification module 500 is arranged close to the spiral shaft, and the air outlet channel 203 is divided into a first air duct 2031 and a second air duct 2032, and the air outlet 202 is correspondingly divided into a first sub-air outlet 2021 and a second sub-air outlet 2022, wherein the first sub-air outlet 2021 corresponds to the first air duct 2031, and the second sub-air outlet 2022 corresponds to the second air duct 2032; the refrigerator further includes a guide portion 600. The guide portion 600 is provided on the back plate 110, and is arranged below the fan housing 200 corresponding to the first sub-air outlet 2021, and the guide portion 600 includes a guide surface 610 facing the first sub-air outlet 2021, and the guide surface 610 is used to guide the airflow of the first sub-air outlet 2021 to flow toward the front side of the fan housing 200.

[0067] By arranging the purification module 500 close to the spiral shaft, the air outlet channel 203 can be divided into a first air duct 2031 and a second air duct 2032, so that the air in the air outlet channel 203 can be divided into two parts, one part flows out through the first sub-air outlet 2021, and the other part flows out through the second sub-air outlet 2022.

[0068] By setting the guide portion 600, the flow direction of the air at the first sub-air outlet 2021 can be changed. Under the action of the guide surface 610, the air flowing out of the first sub-air outlet 2021 can flow toward the front side of the fan housing 200; at the same time, the air flowing out of the second sub-air outlet 2022 flows toward the lower side of the fan housing 200. By discharging air in two directions, the turbulence of the air in the refrigerated space 101 can be increased, which is conducive to driving the circulation of the air in the refrigerated space 101.

[0069] Optionally, the guide portion 600 is a guide plate, which is arranged on the bottom groove wall of the accommodating groove and protrudes from the inner plate surface of the back plate 110, so as to form a flow of air from the first sub-air outlet 2021 to the front side of the fan housing 200.

[0070] Optionally, the guide surface 610 includes a first side end 611 and a second side end 612. The first side end 611 is arranged close to the first sub-air outlet 2021; the second side end 612 is opposite to the first side end 611; the guide surface 610 extends downwardly and obliquely from the first side end 611 to the second side end 612, in a direction away from the back plate 110.

[0071] By extending the guide surface 610 downwardly from the first side end 611 to the second side end 612 and away from the back plate 110, the connection angle between the guide surface 610 and the back plate 110 can be increased, thereby avoiding the occurrence of a flow dead zone, and further avoiding the growth of bacteria in the flow dead zone. Optionally, the first side end 611 extends into the accommodating groove.

[0072] Optionally, the guide surface 610 is configured as an arc-shaped guide surface.

[0073] By constructing the guide surface 610 into an arc shape, the air can continuously change when flowing through it.

[0074] Since the curved guide surface adopts a streamlined design, it can reduce the resistance of the air flowing along the guide surface 610 and reduce energy loss. In addition, at the first end, the air fluid is subjected to a greater pressure, while at the second end, the pressure gradually decreases, which helps to guide the fluid to the desired direction. In addition, the curved guide surface can affect the boundary layer of the fluid on its surface, thereby reducing flow separation and the formation of vortices and reducing energy loss.

[0075] Optionally, the air guide 600 is integrally formed with the back plate 110. In this way, the structural strength of the back plate 110 can be improved and the connection and assembly costs can be reduced.

[0076] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigerator, characterized in that: include: An inner container defines a refrigerated space therein, the inner container comprising a back plate extending vertically; An evaporator is arranged on the outer peripheral side of the inner tank; A fan housing, covering the inner wall of the back plate, and defining a receiving space between the fan housing and the back plate, wherein the fan housing comprises a first cover plate extending vertically, an air inlet is provided on the first cover plate, and an air outlet is formed between the bottom end of the first cover plate and the back plate; A centrifugal fan is arranged in the accommodating space corresponding to the air inlet, and the centrifugal fan is used to drive the air flow in the refrigerated space to circulate between the refrigerated space and the accommodating space.

2. The refrigerator according to claim 1, characterized in that: Also includes: An air guide rib is provided on the first plate surface of the first cover plate and includes a first end and a second end; The first end and the second end are arranged at the bottom end of the first cover plate, the wind guide ribs extend from the first end to the second end and surround the air inlet, and an air outlet channel is defined between the first end and the second end; Wherein, the first plate surface faces the back plate.

3. The refrigerator according to claim 2, characterized in that: The air guiding ribs are constructed in a spiral line shape, wherein a spiral axis of the air guiding ribs extending in the vertical direction is coaxially arranged with a central axis of the air inlet extending in the vertical direction.

4. The refrigerator according to claim 2, characterized in that: Also includes: A mounting seat, arranged on the back plate; A mounting groove is provided on the mounting seat, wherein the mounting groove is constructed with a contour shape matching the contour shape of the wind guide rib, and the wind guide rib can be inserted into the mounting groove.

5. The refrigerator according to claim 3, characterized in that: Also includes: The purification module is arranged in the air outlet channel and is used for purifying the airflow passing through the air outlet channel.

6. The refrigerator according to claim 5, characterized in that: The purification module comprises: A housing defines a receiving cavity therein, and a release hole is provided on the housing to connect the receiving cavity with the air outlet channel; The release part is arranged in the accommodating cavity, and is used for releasing the sterilizing substance to purify the airflow in the air outlet channel.

7. The refrigerator according to claim 5, characterized in that: The purification module is arranged close to the spiral shaft, and divides the air outlet channel into a first air duct and a second air duct, and divides the air outlet into a first sub-air outlet and a second sub-air outlet, wherein the first sub-air outlet corresponds to the first air duct, and the second sub-air outlet corresponds to the second air duct; The guide portion is provided on the back plate and is arranged below the fan housing corresponding to the first sub-air outlet. The guide portion includes a guide surface facing the first sub-air outlet, and the guide surface is used to guide the airflow of the first sub-air outlet to flow toward the front side of the fan housing.

8. The refrigerator according to claim 7, characterized in that: The guide surface comprises: A first side end, arranged close to the first sub-air outlet; a second side end, opposite to the first side end; The guide surface is arranged to extend obliquely downward from the first side end to the second side end along a direction away from the back plate.

9. The refrigerator according to claim 8, characterized in that: The flow guiding surface is configured as an arc-shaped flow guiding surface.

10. The refrigerator according to any one of claims 7 to 9, characterized in that: The air guide portion and the back plate are integrally formed.

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