CN220015520U - Fan and refrigerator - Google Patents

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a fan, which is used for a refrigerator and comprises the following components: the volute tongue component is provided with a fan air outlet; the wind ring is detachably connected with the volute tongue component and encloses a wind cavity with the volute tongue component; the wind wheel is arranged in the volute tongue component and is positioned in the wind cavity; wherein, the distance between the edge of the wind wheel and the inner edge of the wind ring is D, and D is more than or equal to 3mm. When the freezer defrosting, the hot and humid air flows through the fan, based on the temperature of the area where the fan is located is lower than the temperature of the hot and humid air, water vapor in the hot and humid air condenses into water at the fan, and the space between the edge of the wind wheel and the inner edge of the wind ring is greater than or equal to 3mm, so that the phenomenon that the residual condensed water in the fan is frozen during refrigeration can be avoided, the wind wheel and the wind ring are bonded together, the rotation of the wind wheel is influenced, and the refrigeration effect and the energy consumption of the freezer are influenced. The utility model also discloses a refrigerator.

Description

Fan and refrigerator

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a fan and a refrigerator.

Background

At present, a refrigerating apparatus is widely used for storing articles at a low temperature, for example, a refrigerator, a freezer, etc. According to the refrigeration principle, the refrigerator is generally divided into a direct-cooling refrigerator and an air-cooling refrigerator. The direct cooling refrigerator is easy to cause frosting in the refrigerator in the use process, and the air cooling refrigerator is favored by users because of the frostless advantage.

In the related art, when a refrigerator is defrosted, the temperature of an evaporator rises, an ice layer attached to the evaporator is melted, water vapor is combined with air flowing through the evaporator to form a large amount of hot and humid air, and when the hot and humid air flows through a fan, the temperature of an area where the fan is located is lower than that of the hot and humid air, so that the water vapor in the hot and humid air is condensed into water at the fan.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the related art, the fan is unreasonably arranged, and condensed water reserved in the fan is easy to freeze during refrigeration, so that the wind wheel is bonded and cannot rotate, and the refrigeration effect and the energy consumption of the refrigerator are affected.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a fan and a refrigerator, so as to avoid the problem that the wind wheel is stuck and cannot rotate due to freezing of condensate water remained in the fan during refrigeration.

In some embodiments, the fan for a refrigerator comprises:

the volute tongue component is provided with a fan air outlet;

the wind ring is detachably connected with the volute tongue component and encloses a wind cavity with the volute tongue component;

the wind wheel is arranged in the volute tongue component and positioned in the wind cavity;

wherein, the distance between the edge of the wind wheel and the inner edge of the wind ring is D, and D is more than or equal to 3mm.

In some embodiments, the distance D between the edge of the wind wheel and the inner edge of the wind ring is less than or equal to 8mm.

In some embodiments, the wind ring is configured with a hollowed-out portion coaxially disposed with the wind wheel.

In some embodiments, the hollowed-out area of the hollowed-out portion is smaller than or equal to the axial flow area of the wind wheel.

In some embodiments, the air inlet side of the wind wheel is opposite to the wind ring, and the distance between the air inlet side of the wind wheel and the inner side wall of the hollow part of the wind ring is D.

In some embodiments, the edge of the hollowed-out portion is curved and configured with a groove with an opening facing the wind wheel, and the groove protrudes outwards from the plate surface of the wind ring.

In some embodiments, the volute tongue assembly includes a volute and a tongue defining the blower outlet, the volute and/or tongue configured with a slot;

the wind ring is provided with a clamping protrusion, and the clamping protrusion is clamped in the clamping groove, so that the wind ring and the volute tongue component are fixedly connected.

In some embodiments, the volute tongue assembly comprises:

a first volute;

the first volute tongue and the first volute enclose a first fan air outlet;

the second volute is abutted against the first volute tongue;

the second volute tongue is abutted against the first volute and surrounds the second volute to limit a second fan air outlet;

the plane where the first fan air outlet is located is intersected with the plane where the second fan air outlet is located.

In some embodiments, the refrigerator comprises the fan provided in the previous embodiments.

In some embodiments, the refrigerator further comprises a liner comprising:

the first side wall is provided with a first air supply channel and a second air supply channel, the first air supply channel is communicated with a first fan air outlet of the fan, and the second air supply channel is communicated with a second fan air outlet of the fan.

The fan and the refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

when the freezer defrosting, the evaporator temperature rises, and the attached ice layer melts, and steam combines with the air that flows through, forms a large amount of hot and humid air, when hot and humid air flows through the fan, based on the temperature in fan place region is less than the temperature of hot and humid air to lead to the steam in the hot and humid air to condense into water in fan department, through making the interval of the edge of wind wheel and the inward flange of wind ring more than or equal to 3mm, can avoid the residual comdenstion water in the fan to freeze when refrigerating, bond wind wheel and wind ring together, thereby influence the rotation of wind wheel, and then influence the refrigeration effect and the energy consumption of freezer.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the utility model.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic cross-sectional view of the blower provided by an embodiment of the disclosure;

FIG. 2 is a schematic diagram of a structure of the blower and the air supply duct in cooperation provided in an embodiment of the disclosure;

FIG. 3 is a schematic structural diagram of another view angle of the fan and the air supply duct according to the embodiment of the present disclosure;

FIG. 4 is a schematic view of a structure of another view of the blower provided by an embodiment of the disclosure;

FIG. 5 is a schematic view of a structure of another view of the blower provided by an embodiment of the disclosure;

fig. 6 is a schematic structural view of the liner according to the embodiment of the present disclosure;

FIG. 7 is a schematic view of another view of the liner according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of another view angle of the fan according to an embodiment of the present disclosure.

Reference numerals:

1: an inner container; 11: a first sidewall; 12: a second sidewall; 13: a bottom wall; 111: an air supply port; 112: an air supply duct; 1121: a first air supply duct; 1122: a second air supply duct;

2: a return air cover plate; 3: an evaporator;

4: a blower; 41: a volute tongue assembly; 411: a first volute; 412: a first volute tongue; 413: an air outlet of the first fan; 414: a second volute; 415: a second volute tongue; 416: an air outlet of the second fan; 417: a clamping groove; 418: a wind ring; 4181: a hollowed-out part; 4182: a groove; 4183: a clamping protrusion; 42: a wind wheel; 421: a first anchor mounting section;

d: the distance between the edge of the wind wheel and the inner edge of the wind ring;

h: the distance between the wind wheel and the volute tongue component;

l1: a first auxiliary connection line;

l2: a second auxiliary connection line;

l3: a vertical line;

alpha: an included angle between the first auxiliary connecting line and the second auxiliary connecting line.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

The fan provided by the embodiment can be applied to a refrigerator, in particular to an air-cooled refrigerator, and particularly relates to an air-cooled horizontal refrigerator. The refrigerator comprises a box body and a door body, wherein the door body is movably positioned above the box body. The box body comprises a box shell, an inner container 1 and a heat insulation material, wherein the inner container 1 is positioned in the box shell, and the heat insulation material is positioned between the box shell and the inner container 1. The fan is arranged on the liner 1.

The liner 1 includes a bottom wall 13 and side walls including a front side wall, a rear side wall, a left side wall, and a right side wall. The front side wall and the rear side wall are disposed opposite to each other and are located at the front and rear ends of the bottom wall 13, respectively, and both extend upward. The left side wall and the right side wall are disposed opposite to each other, and are located at the left and right ends of the bottom wall 13, respectively, and extend upward. The bottom wall 13, the front side wall, the rear side wall, the left side wall, and the right side wall enclose an inner space together. The inner space is provided with an opening, the opening is upward, and the door body 7 is movably covered above the opening.

For convenience of description, the present utility model defines the front-rear direction as the width direction and the left-right direction as the length direction.

The embodiment of the disclosure provides a refrigerator, the liner 1 includes a first side wall 11 and a second side wall 12, the first side wall 11 and the second side wall 12 are disposed along a width direction of the liner 1, and the first side wall 11 and the second side wall 12 each define an air supply duct 112 having an air supply opening 111. Here, the first sidewall 11 and the second sidewall 12 are disposed along the width direction of the liner 1, that is, the first sidewall 11 may be a rear sidewall or a front sidewall, and the second sidewall 12 may be a front sidewall or a rear sidewall, respectively. It can be understood that: the front and rear side walls each define an air supply duct having an air supply port 111 therein. Thus, the air outlet of the inner space can be realized, and the air cooling is further realized.

The refrigerator further comprises a return air cover plate 2, the return air cover plate 2 is located in the inner space and divides the inner space into a storage cavity and an evaporator cavity, an outlet of the evaporator cavity is communicated with an inlet of the air supply duct, the return air cover plate 2 is provided with a return air inlet, and air flow in the storage cavity can flow into the evaporator cavity through the return air inlet. Here, the storage chamber is used for holding articles to be frozen, such as meat, seafood, tea leaves, etc. The evaporator cavity is used for generating refrigerating air flow, the refrigerating air flow can flow from the evaporator cavity to the air supply duct, flows into the storage cavity from the air supply port 111, exchanges heat with objects in the storage cavity, flows back into the evaporator cavity for cooling again, and flows to the air supply duct for circulation after cooling. Thus, the air path circulation of the refrigerator is realized, and the air cooling refrigeration of the refrigerator is realized.

The refrigerator further comprises an evaporator 3 and a fan 4, wherein the evaporator 3 is positioned in the evaporator cavity. Optionally, the fan and the air supply duct are located in the same side wall, and the fan is communicated with the air supply duct. The air blower can drive air flow to flow through the evaporator cavity, the air supply duct and the storage cavity and then flow back to the evaporator cavity through the air return opening, so that a circulating air path is formed. Here, the evaporator 3 is adapted to exchange heat with the air flow in the evaporator chamber to form a refrigerant air flow. The fan provides power for airflow. The fan and the air supply duct are all located on the same side wall, so that the air flow flowing out of the fan does not need to pass through a right-angle corner, the loss of the air flow can be reduced, the refrigerating effect of the refrigerator is improved, and the energy consumption is reduced.

As shown in connection with fig. 1-8, embodiments of the present disclosure provide a blower for a refrigerator that includes a volute tongue assembly 41, a wind ring 418, and a wind wheel 42. The volute tongue component 41 is provided with a fan air outlet; the wind ring 418 is detachably connected with the volute tongue component 41 and encloses a wind cavity with the volute tongue component 41; the wind wheel 42 is arranged in the volute tongue component 41 and positioned in the wind cavity; wherein, the distance between the edge of the wind wheel 42 and the inner edge of the wind ring 418 is D, and D is more than or equal to 3mm.

Adopt the fan that this disclosed embodiment provided, when the freezer defrosting, the evaporimeter 3 temperature rises, the ice sheet that adheres to on it melts, steam combines with the air that flows through, form a large amount of hot humid air, when hot humid air flows through the fan, based on the temperature in fan place region is less than the temperature of hot humid air, thereby lead to the steam in the hot humid air to condense into water in fan department, through making the interval of the edge of wind wheel 42 and the inward flange of wind ring 418 greater than or equal to 3mm, can avoid the residual comdenstion water icing in the fan when refrigerating, make wind wheel 42 and wind ring 418 bond, thereby influence the rotation of wind wheel 42, and then influence the refrigeration effect and the energy consumption of freezer.

In the fan of this embodiment, the wind wheel 42 is located in a wind cavity enclosed by the wind ring 418 and the volute tongue component 41, and the inlet air flows in from the wind ring 418 and flows out from the fan air outlet of the volute tongue component 41. Wherein, the air outlet of the fan is communicated with the air supply duct of the liner 1.

Optionally, the distance D between the edge of the wind wheel 42 and the inner edge of the wind ring 418 is less than or equal to 8mm.

When the distance between the edge of the wind wheel 42 and the inner edge of the wind ring 418 is more than or equal to 3mm, the distance between the edge of the wind wheel 42 and the inner edge of the wind ring 418 is further limited to be less than or equal to 8mm, so that the phenomenon that condensed water freezes and bonds the wind wheel 42 and the wind ring 418 during refrigeration, and the wind wheel 42 does not rotate can be avoided; and the excessive space between the wind ring 418 and the wind wheel 42 can be avoided, so that the overall air quantity of the fan is reduced, namely, the overall air quantity of the fan is ensured.

Optionally, the wind ring 418 is configured with a hollow portion 4181, and the hollow portion 4181 is disposed coaxially with the wind wheel 42.

Through the hollowed-out part 4181 of the wind ring 418, the wind ring 418 not only has the purpose of enclosing the air outlet cavity with the volute tongue component 41, but also has the air inlet function of the fan. The air flow flows in from the hollowed-out part 4181 of the wind ring 418 under the suction force of the wind wheel 42, and is blown out into the air supply duct of the liner 1 from the air outlet of the fan of the volute tongue component 41 after passing through the wind wheel 42, thereby realizing the refrigeration of the inner space of the liner 1.

The hollowed-out part 4181 is coaxially arranged with the wind wheel 42, so that on one hand, under the suction force generated by the wind wheel 42, the wind ring 418 is uniformly stressed under the condition that the wind wheel 42 rotates; on the other hand, when the external air flows into the wind cavity under the suction force of the wind wheel 42, the air inlet and outlet of the wind wheel 42 are ensured to be uniform.

Optionally, the hollowed area of the hollowed portion 4181 is smaller than or equal to the axial flow area of the wind wheel 42.

Under the condition that the hollowed area of the hollowed part 4181 is smaller than or equal to the axial flow area of the wind wheel 42, turbulent flow of air flow at a gap between the wind ring 418 and the wind wheel 42 can be avoided, and the stability and the air outlet effect of the fan are affected. In addition, foreign matter can be prevented from entering the wind chamber from the gap between the wind ring 418 and the wind wheel 42.

Optionally, the air inlet side of the wind wheel 42 is opposite to the wind ring 418, and the distance between the air inlet side of the wind wheel 42 and the inner side wall of the wind ring 418 at the hollowed-out portion 4181 is D.

The space between the air inlet side of the wind wheel 42 and the inner side wall of the wind ring 418 at the hollowed-out part 4181 can be understood as the minimum space between the wind wheel 42 and the wind ring 418, and under the condition that the minimum space meets the requirement, the fan can avoid the phenomenon that the wind wheel 42 and the wind ring 418 are bonded together due to the fact that residual condensed water is frozen during refrigeration, so that the rotation of the wind wheel 42 is influenced.

When the refrigerator is defrosted, the temperature of the evaporator 3 rises, an ice layer attached to the evaporator is melted, water vapor is combined with air flowing through to form a large amount of hot and humid air, when the hot and humid air flows through the fan, the temperature based on the area where the fan is located is lower than the temperature of the hot and humid air, so that the water vapor in the hot and humid air is condensed into water at the fan, the distance between the air inlet side of the wind wheel 42 and the inner side wall of the air ring 418 at the hollowed-out part 4181 is greater than or equal to 3mm and less than or equal to 8mm, the phenomenon that the residual condensed water in the fan is frozen during refrigeration can be avoided, and the condensed ice bonds the wind wheel 42 and the air ring 418 together, so that the rotation of the wind wheel 42 is influenced, and the refrigeration effect and the energy consumption of the refrigerator are influenced.

Optionally, the edge of the hollowed-out portion 4181 is curved and configured with a groove 4182 that opens towards the wind wheel 42, and the groove 4182 protrudes outwards from the plate surface of the wind ring 418.

The opening of the edge bending structure of the hollowed-out part 4181 is shoveled towards the groove 4182 of the wind wheel 42, so that partial water drops carried in the air flow can be reserved, the distance between the wind ring 418 and the wind wheel 42 is further enlarged, and the situation that condensed water in the area between the wind ring 418 and the wind wheel 42 is frozen to bond the wind ring 418 and the wind wheel 42 together is avoided. Meanwhile, the grooves 4182 are arranged to protrude outwards from the surface of the wind ring 418, so that the space between the wind ring 418 and the wind wheel 42 is prevented from being reduced, the space in the wind cavity is occupied, and the wind outlet quantity is prevented from being influenced.

Optionally, the volute tongue assembly 41 includes a volute and a volute tongue defining a fan outlet, the volute and/or volute tongue configured with a slot 417; the wind ring 418 is configured with a clamping protrusion 4183, and the clamping protrusion 4183 is clamped in the clamping groove 417, so that the wind ring 418 is fixedly connected with the volute tongue assembly 41.

The air ring 418 is removably connected to the volute tongue assembly 41. Through the structural design of draw-in groove 417 and card protruding 4183, the windband 418 and spiral case volute tongue subassembly 41 joint can reduce the use of fastener on the one hand, practices thrift the cost, and on the other hand is convenient for install, helps improving assembly efficiency.

Alternatively, the volute and volute tongue may be of unitary construction. In this way, structural strength and stability of the volute tongue assembly 41 are facilitated.

Optionally, the volute tongue assembly 41 includes: a first volute 411; the first volute tongue 412 and the first volute 411 define a first fan air outlet 413; a second volute 414 that abuts the first volute tongue 412; the second volute tongue 415 is abutted against the first volute 411 and surrounds the second volute 414 to define a second fan air outlet 416; wherein, the plane of the first fan air outlet 413 is intersected with the plane of the second fan air outlet 416.

The second volute 414 is in contact with the first volute tongue 412, and the second volute tongue 415 is in contact with the first volute 411. The second volute 414 and the second volute tongue 415 define a second fan outlet 416, and the first volute 411 and the first volute tongue 412 define a first fan outlet 413. The first air supply duct 1121 and the second air supply duct 1122 on the first side wall 11 of the liner 1 are respectively communicated with the first fan air outlet 413 and the second fan air outlet 416. The cooling air flows into the inner container 1 through the first air supply duct 1121 and the second air supply duct 1122 to enclose an inner space under the driving of the wind wheel 42, so as to reduce the temperature of the inner space.

The plane of the second fan air outlet 416 is intersected with the plane of the first fan air outlet 413, so that the second fan air outlet 416 is conveniently communicated with the second air supply duct 1122, and the first fan air outlet 413 is conveniently communicated with the first air supply duct 1121.

Optionally, the center of the wind wheel 42 forms a first auxiliary connection line with the first volute tongue 412, the center of the wind wheel 42 forms a second auxiliary connection line with the second volute tongue 415, and an included angle between the first auxiliary connection line and the second auxiliary connection line is alpha, wherein 90 degrees < alpha < 180 degrees.

The center of the wind wheel 42 forms a first auxiliary connecting line l1 and a second auxiliary connecting line l2 with the first volute tongue 412 and the second volute tongue 415 respectively. Through setting the contained angle between first auxiliary line l1 and the second auxiliary line l2 to be greater than 90 and less than 180, make the fan can carry out accurate control to different wind channel air supply volume, and then realize the accurate control to the air supply volume of inner space to promote the samming nature of freezer, improve the forced air cooling effect of freezer, reduce the energy consumption.

Specifically, the included angle between the first auxiliary connection line l1 and the second auxiliary connection line l2 may be set to 95 °, 100 °, 110 °, 120 °, 130 °, 140 °, 150 °, 160 °, 170 °, 175 °, and may be selected and set according to different air speed ratio requirements of the first air supply duct 1121111 and the second air supply duct 1122112.

As shown in conjunction with fig. 1 to 8, an embodiment of the present disclosure provides a fan, including: the volute tongue assembly 41 and the wind wheel 42, wherein the wind wheel 42 is arranged in the volute tongue assembly 4141; wherein, the distance between the wind wheel 42 and the volute tongue component 41 is H, and H is more than or equal to 10mm.

By adopting the fan provided by the embodiment of the disclosure, the wind wheel 42 is arranged in the volute tongue component 41, and the volute tongue component 41 not only plays a role in fixing the wind wheel 42, but also plays a role in guiding airflow direction. When defrosting, under the condition that the damp and hot air flow flowing out of the evaporator cavity flows through the fan, the temperature of the damp and hot air flow is higher than that of the fan and water vapor is carried, and due to the structural design that the distance between the wind wheel 42 and the volute tongue component 41 is larger than or equal to 10mm, the damp and hot air flow can be prevented from being blocked by the volute tongue component 41 when flowing through the fan, so that water drops carried by the damp and hot air flow or formed condensed water are prevented from remaining in the volute tongue component 41 to cause icing.

Optionally, the wind wheel 42 includes: the plurality of anchor mounting parts are detachably connected with the volute tongue component 41; wherein, the distance between a foot installation part and the volute tongue component 41 is greater than or equal to H.

The wind wheel 42 is detachably connected with the volute tongue assembly 41 through a ground leg mounting part. In general, the wind wheel 42 includes three anchor mounting portions, which are arranged in an equilateral triangle structure, so as to ensure the stability of the connection between the wind wheel 42 and the volute tongue component 41.

The wind wheel 42 also includes blades with the foot mounts located outboard of the blade edges. By the distance between the ground leg mounting portion and the volute tongue component 41 being greater than or equal to H, that is, greater than or equal to 10mm, it is possible to further avoid that water droplets carried by the flowing air flow or driven condensed water is blocked by the ground leg mounting portion and remains in the volute tongue component 41.

In practice, the foot mounting portion and the volute tongue assembly 41 may be connected by fasteners.

Optionally, the wind wheel 42 includes a first anchor mounting portion 421, and the volute tongue assembly 41 includes: a first volute 411; the first volute tongue 412 and the first volute 411 define a first fan air outlet 413; the distance between the first volute tongue 412 and the first foot mounting portion 421 is H.

The first anchor mounting portion 421 is provided to partially face the first tongue 412. One end of the first volute tongue 412 and the first volute 411 enclose a first fan air outlet 413, and the other end thereof is disposed close to the wind wheel 42, especially close to the first anchor mounting portion 421. In the case that the hot and humid air flows through the first volute tongue 412, if the distance between the first volute tongue 412 and the first leg mounting portion 421 is small, the hot and humid air is easily blocked by the first volute tongue 412 and the first leg mounting portion 421, so that the problem that the carried water drops or the driven condensed water remain and easily cause icing is caused. Therefore, by designing the distance between the first volute tongue 412 and the first anchor mounting portion 421 to be greater than or equal to 10mm, the air flow can smoothly flow out of the first fan air outlet 413, and the carried water drops or the driven condensed water is prevented from being blocked to cause icing.

In addition, the distance between the first volute tongue 412 and the wind wheel 42 or the first leg mounting portion 421 is much smaller than the distance between the wind wheel 42 and the first volute 411 and other areas of the first volute tongue 412. Therefore, in the case that the distance between the first volute tongue 412 and the first leg mounting portion 421 is H, the distances between the wind wheel 42 and the first volute 411 and other areas of the first volute tongue 412 are all larger than H, so that smooth flow of the hot and humid air is ensured, and blockage is avoided.

Alternatively, the first anchor mounting portion 421 is located on the air outlet side of the wind wheel 42, and is located on the airflow path of the first fan air outlet 413.

The first anchor mounting portion 421 is located at the air outlet side of the wind wheel 42 and is located on the airflow path of the first fan air outlet 413, so that the distance between the first volute tongue 412 and the first anchor mounting portion 421 is designed to be greater than or equal to 10mm, so that the moist heat airflow can smoothly flow out of the first fan air outlet 413, double obstruction of the moist heat airflow by the first volute tongue 412 and the first anchor mounting portion 421 is avoided, and the moist heat airflow is kept in the volute tongue group value to cause icing.

Note that, the distance between the first anchor mounting portion 421 and the first volute tongue 412 in this embodiment may be understood as the minimum distance between the outer edge of the first anchor mounting portion 421 and the first volute tongue 412.

As shown in fig. 1 to 8, an embodiment of the present disclosure provides a refrigerator, including the blower provided in the above embodiment. The fan includes a volute tongue assembly 41, a wind ring 418 and a wind wheel 42. The volute tongue component 41 is provided with a fan air outlet; the wind ring 418 is detachably connected with the volute tongue component 41 and encloses a wind cavity with the volute tongue component 41; the wind wheel 42 is arranged in the volute tongue component 41 and positioned in the wind cavity; wherein, the distance between the edge of the wind wheel 42 and the inner edge of the wind ring 418 is D, and D is more than or equal to 3mm.

Adopt the freezer that this disclosed embodiment provided, when freezer defrosting, the evaporimeter 3 temperature rises, the ice sheet that adheres to on it melts, steam combines with the air that flows through, form a large amount of hot humid air, when hot humid air flows through the fan, based on the temperature in fan place region is less than the temperature of hot humid air, thereby lead to the steam in the hot humid air to condense into water in fan department, through making the interval of the edge of wind wheel 42 and the inward flange of wind ring 418 greater than or equal to 3mm, can avoid the residual comdenstion water icing in the fan when refrigerating, make wind wheel 42 and wind ring 418 bond, thereby influence the rotation of wind wheel 42, and then influence the refrigeration effect and the energy consumption of freezer.

Optionally, the refrigerator further includes an inner container 1, and the inner container 1 includes: the first side wall 11 is provided with a first air supply duct 1121 and a second air supply duct 1122, the first air supply duct 1121 is communicated with a first fan air outlet 413 of the fan, and the second air supply duct 1122 is communicated with a second fan air outlet 416 of the fan.

Alternatively, the first air supply duct 1121 is disposed at an upper portion of the first side wall 11, and the second air supply duct 1122 is disposed at a lower portion of the first side wall 11; wherein the first fan outlet 413 is disposed upward.

The first air supply duct 1121 is located above the second air supply duct 1122 such that the air flow blown out from the first air supply duct 1121 acts on the upper space of the liner 1, and the air flow blown out from the second air supply duct 1122 acts on the lower space of the liner 1, thereby cooling the inner space of the liner 1 in cooperation with the air flow blown out from the first air supply duct 1121.

Optionally, an included angle between a second auxiliary connection line l2 formed by the center of the wind wheel 42 and the second volute tongue 415 and a perpendicular line l3 is greater than or equal to 20 ° and less than or equal to 60 °. Or, the included angle between the second auxiliary connecting line l2 formed by the center of the wind wheel 42 and the second volute tongue 415 and a vertical line l3 is greater than or equal to 20 degrees and less than or equal to 40 degrees.

In this way, the setting position of the second volute tongue 415 can be determined by the included angle between the second auxiliary connecting line l2 and a perpendicular line l3, and further, the setting position of the first volute tongue 412 is determined according to the included angle between the first auxiliary connecting line l1 and the second auxiliary connecting line l2, that is, the precise air supply of the fan to the first air supply duct 1121 and the second air supply duct 1122 is further realized.

Optionally, the included angle between the first auxiliary connection line l1 and the second auxiliary connection line l2 is greater than 100 ° and less than or equal to 140 °. Or, the included angle between the first auxiliary connection line l1 and the second auxiliary connection line l2 is greater than 130 ° and less than or equal to 140 °. Alternatively, the included angle between the first auxiliary connection line l1 and the second auxiliary connection line l3 is greater than 170 ° and less than 180 °.

The upper and lower parts of the first side wall 11 of the liner 1 are respectively provided with a first air supply duct 1121 and a second air supply duct 1122, the first air supply duct 1121 is provided with a first air supply duct opening 111, and the second air supply duct 1122 is provided with a second air supply duct opening 111. When the refrigerator is in operation, in the air circulation process, the fan utilizes the first air supply duct 1121 and the second air supply duct 1122 to convey refrigerating airflow to the inner space enclosed by the inner container 1 through the first air duct outlet and the second air duct outlet. When the wind pressure is constant, the natural sinking of the cold wind causes a proportional relationship between the air supply amounts of the first air supply duct 1121 and the second air supply duct 1122 to be one of the main factors affecting the temperature uniformity inside the cabinet. In the embodiment of the disclosure, the center of the wind wheel 42 forms a first auxiliary connecting line l1 and a second auxiliary connecting line l2 with a first volute tongue 412 and a second volute tongue 415 respectively, an included angle between the first auxiliary connecting line l1 and the second auxiliary connecting line l2 is set to be more than 90 degrees and less than 180 degrees, so that a fan can accurately control the air quantity of the first air supply air duct 1121 and the second air supply air duct 1122 through a first fan air outlet 413 and a second fan air outlet 416 respectively, and further, the air quantity of an inner space is accurately controlled, thereby the temperature uniformity of the refrigerator is improved, the air cooling effect of the refrigerator is improved, and the energy consumption is reduced.

In the embodiment of the disclosure, the included angle between the first auxiliary connecting line l1 and the second auxiliary connecting line l2 is set to be greater than 130 ° and less than or equal to 140 °, and the included angle between the second auxiliary connecting line l2 formed by the center of the wind wheel 42 and the second volute tongue 415 and a perpendicular line l3 is set to be greater than or equal to 20 ° and less than or equal to 40 °.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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 (10)

1. A fan for a refrigerator, comprising:

the volute tongue component is provided with a fan air outlet;

the wind ring is detachably connected with the volute tongue component and encloses a wind cavity with the volute tongue component;

the wind wheel is arranged in the volute tongue component and positioned in the wind cavity;

wherein, the distance between the edge of the wind wheel and the inner edge of the wind ring is D, and D is more than or equal to 3mm.

2. The fan as claimed in claim 1, wherein,

the distance D between the edge of the wind wheel and the inner edge of the wind ring is smaller than or equal to 8mm.

3. The fan as claimed in claim 1, wherein,

the wind ring is provided with a hollowed-out part, and the hollowed-out part and the wind wheel are coaxially arranged.

4. The fan as claimed in claim 3, wherein,

the hollowed-out area of the hollowed-out part is smaller than or equal to the axial flow area of the wind wheel.

5. The fan as claimed in claim 3, wherein,

the wind wheel is characterized in that the wind inlet side of the wind wheel is opposite to the wind ring, and the distance between the wind inlet side of the wind wheel and the inner side wall of the wind ring at the hollowed-out part is D.

6. The fan as claimed in claim 3, wherein,

the edge bending structure of fretwork portion has the opening to towards the recess of wind wheel, the recess is followed the face of wind ring outwards protrusion setting.

7. The fan according to any of claims 1 to 6, wherein,

the volute tongue component comprises a volute and a volute tongue which define an air outlet of the fan, and the volute and/or the volute tongue is/are provided with a clamping groove;

the wind ring is provided with a clamping protrusion, and the clamping protrusion is clamped in the clamping groove, so that the wind ring and the volute tongue component are fixedly connected.

8. The blower of claim 1, wherein the volute tongue assembly comprises:

a first volute;

the first volute tongue and the first volute enclose a first fan air outlet;

the second volute is abutted against the first volute tongue;

the second volute tongue is abutted against the first volute and surrounds the second volute to limit a second fan air outlet;

the plane where the first fan air outlet is located is intersected with the plane where the second fan air outlet is located.

9. A refrigerator comprising a fan as claimed in any one of claims 1 to 8.

10. The refrigerator of claim 9, further comprising a liner, the liner comprising:

the first side wall is provided with a first air supply channel and a second air supply channel, the first air supply channel is communicated with a first fan air outlet of the fan, and the second air supply channel is communicated with a second fan air outlet of the fan.