CN218096777U - Direct cooling refrigerator - Google Patents

Abstract

The application relates to the technical field of refrigerating devices, and discloses a direct-cooling freezer, include: a cabinet defining a refrigerating chamber; the air duct assembly is vertically arranged in the refrigerating chamber and comprises a first air duct and a second air duct, the first air duct is transversely arranged at the bottom of the refrigerating chamber, and a first air inlet and a second air inlet are respectively formed in two ends of the first air duct; the second air duct is vertically arranged above the first air duct, an air outlet is formed in the upper end of the second air duct, and the lower end of the second air duct is communicated with the first air duct, so that cold air flowing into the first air duct can flow into the second air duct and flow out of the second air duct through the air outlet; and the fan is arranged at the top of the air duct assembly and communicated with the air outlet. The cold air of bottom flows to the upper portion of walk-in this application can make the walk-in, can promote the homogeneity of the cold air in the walk-in effectively, reduces the difference in temperature in the walk-in.

Description

Direct cooling refrigerator

Technical Field

The present application relates to the field of refrigeration devices, for example, to a direct-cooling freezer.

Background

A freezer, also called a freezer, is an apparatus for storing articles such as food at a low temperature. The refrigerator becomes a common electric appliance for refrigerating food, and in order to effectively improve the refrigerating performance of the refrigerator and facilitate the refrigeration of food, a direct-cooling refrigerator has been proposed in the related art.

The related technology discloses a display type refrigerator, which mainly comprises an upper box body and a lower bottom support, wherein the lower bottom support is internally provided with a compressor, a condenser and other main refrigerating parts, an evaporator is arranged in the upper box body, the landing area of the lower bottom support is smaller than that of the upper box body, a shutter is arranged on the side wall of the lower bottom support and is provided with a temperature control switch, and the top surface of the upper box body is provided with a sealing glass sliding door capable of moving horizontally.

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:

the display type refrigerator in the related art refrigerates through the evaporator arranged on the upper portion of the refrigerator, cold air is generated on the wall surface of the refrigerator, the cold air can automatically sink in the moving process due to the fact that the cold air is heavier, the cold air can not reach the center of the refrigerator and the temperature of the glass moving door is high, the temperature is higher when the cold air is close to the center of the glass moving door, namely the temperature distribution is uneven about the generation in the refrigerator, and the problem of poor refrigerating effect is caused.

SUMMERY OF THE UTILITY MODEL

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 to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a direct-cooling freezer, which solves the problem that the temperature distribution in the direct-cooling freezer is not uniform, and the refrigeration effect is poor.

Embodiments of a first aspect of the present application provide a direct-cooled refrigerator comprising: the method comprises the following steps: a cabinet defining a refrigerating chamber; the air duct assembly is vertically arranged in the refrigerating chamber and comprises a first air duct and a second air duct, the first air duct is transversely arranged at the bottom of the refrigerating chamber, and a first air inlet and a second air inlet are respectively formed in two ends of the first air duct; the second air duct is vertically arranged above the first air duct, an air outlet is formed in the upper end of the second air duct, and the lower end of the second air duct is communicated with the first air duct, so that cold air flowing into the first air duct can flow into the second air duct and flow out of the second air duct through the air outlet; the fan is arranged at the top of the air duct assembly and communicated with the air outlet so as to drive cold air in the refrigerating chamber to flow into the air duct assembly from the first air inlet and the second air inlet and flow into the fan from the air outlet and flow out from the air outlet of the fan.

In some optional embodiments, the first air inlet is provided with a notch penetrating through two sides of the first air inlet; and/or a notch which penetrates through two sides of the second air inlet is formed in the second air inlet.

In some optional embodiments, a joint between the second air duct and the first air duct is an arc surface, so that the cold air flowing into the first air duct from the first air inlet and the second air inlet can be gathered into the second air duct.

In some alternative embodiments, the second air duct is integrally formed with the first air duct.

In some optional embodiments, the direct-cooled cooler further comprises: the fan cover is sleeved on the outer side of the fan, a plurality of air supply openings are formed in the wall surface of the fan cover facing the air outlet of the fan along the air outlet direction of the fan, and the air supply openings are uniformly distributed on the wall surface of the fan cover from top to bottom in sequence.

In some optional embodiments, the cabinet body comprises a cabinet door, and the cabinet door is movably arranged at the top of the refrigerating chamber to open or close the refrigerating chamber; the height of the top wall of the fan cover is smaller than that of the cabinet door, and the distance between the top wall of the fan cover and the inner bottom of the cabinet body is larger than that between the top wall of the fan cover and the cabinet door.

In some optional embodiments, the direct-cooled cooler further comprises: and the connecting rod is connected with the fan cover and the side wall of the refrigerating chamber so as to strengthen the connection between the air duct assembly and the refrigerating chamber.

In some optional embodiments, an opening at a connection of the connection rod and the fan guard is closed to prevent wind blown by the fan from blowing into the connection rod.

In some optional embodiments, the fan is a backward tilting centrifugal fan, an axis of the backward tilting centrifugal fan is vertically arranged, and an air suction opening of the backward tilting centrifugal fan is communicated with the air outlet.

In some optional embodiments, the direct-cooled cooler further comprises: the first temperature sensor is arranged at the upper part of the refrigerating chamber and used for detecting the temperature of the upper part of the refrigerating chamber;

the second temperature sensor is arranged at the lower part of the refrigerating chamber and used for detecting the temperature of the lower part of the refrigerating chamber;

a controller electrically connected to the first temperature sensor, the second temperature sensor and the fan, and configured to control the opening and closing of the fan according to a difference between a temperature detected by the first temperature sensor and a temperature detected by the second temperature sensor.

The direct cooling freezer that this disclosed embodiment provided can realize following technological effect:

by adopting the direct-cooling freezer provided by the embodiment of the disclosure, the refrigerating chamber is defined in the freezer body, so that food to be refrigerated can be placed in the refrigerating chamber to meet the storage requirement of the food; the cold air at the bottom in the refrigerating chamber can flow into the first air channel, flow into the second air channel from the first air channel, and flow out of the second air channel from the air outlet to the upper part of the refrigerating chamber; through setting up the fan in air outlet department, can provide power for the flow of the cold air in the freezer on the one hand, on the other hand can change the cold air flow direction of air outlet department, and under the drive of fan, the cold air can flow around towards the air outlet, can promote the homogeneity of the cold air in the freezer effectively, reduces the temperature difference of the upper portion and the lower part of freezer, guarantees that every department in the freezer all satisfies the temperature requirement of waiting to refrigerate the thing.

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

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic view of a direct-cooled freezer according to an embodiment of the present disclosure;

fig. 2 is a schematic view of a portion of a direct-cooled freezer according to an embodiment of the present disclosure;

fig. 3 is a schematic cross-sectional view of a direct-cooled freezer provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of an air duct assembly provided by embodiments of the present disclosure;

FIG. 5 is a schematic cross-sectional view of an air duct assembly provided by an embodiment of the present disclosure;

fig. 6 is an enlarged schematic view of a portion a in fig. 5 provided in an embodiment of the present disclosure.

Reference numerals:

10: a cabinet body, 11: refrigerating chamber, 12: cabinet door, 101: first side wall, 102: a second side wall,

20: air duct assembly, 21: first air duct, 211: first air intake, 212: second air intake, 213: notch, 22: second air duct, 221: an air outlet,

30: fan, 31: impeller, 311: air inlet, 312: air outlet, 32: a motor,

40: fan guard, 41: an air supply outlet,

50: a connecting rod.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. 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 be practiced without these details. In other instances, well-known structures and direct-cooled coolers can be used to simplify the illustration.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are primarily for the purpose of better describing the disclosed embodiments and embodiments thereof, and are not intended to limit the direct chill freezer, elements or components as indicated to have, or be constructed and operated in, a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; either directly or indirectly through an intermediary, or internally between two direct-cooled coolers, components or parts. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

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 represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1 to 6, in which arrows indicate a flow direction of air, the disclosed embodiments provide a direct-cooling refrigerator including: a cabinet 10, an air duct assembly 20 and a fan 30, the cabinet 10 defining a refrigerating chamber 11; the air duct assembly 20 is vertically arranged in the refrigerating chamber 11, the air duct assembly 20 comprises a first air duct 21 and a second air duct 22, the first air duct 21 is transversely arranged at the bottom of the refrigerating chamber 11, and a first air inlet 211 and a second air inlet 212 are formed in two ends of the first air duct 21; the second air duct 22 is vertically arranged above the first air duct 21, an air outlet 221 is formed in the upper end of the second air duct 22, and the lower end of the second air duct 22 is communicated with the first air duct 21, so that cold air flowing into the first air duct 21 can flow to the second air duct 22 and flow out of the second air duct 22 through the air outlet 221; the fan 30 is disposed at the top of the air duct assembly 20 and is communicated with the air outlet 221, and the fan 30 drives the cold air in the refrigerating chamber 11 to flow into the air duct assembly 20 from the first air inlet 211 and the second air inlet 212 and flow into the fan 30 from the air outlet 221, and flow from the air outlet 312 of the fan 30 toward the periphery of the fan 30.

By adopting the direct-cooling freezer provided by the embodiment of the disclosure, the refrigerating chamber 11 is defined in the freezer body 10, so that food to be refrigerated can be placed in the refrigerating chamber 11 to meet the storage requirement of the food; the first air duct 21 and the second air duct 22 which are connected with each other are arranged in the refrigerating chamber 11 along the vertical direction, the two ends of the first air duct 21 are provided with the first air inlet 211 and the second air inlet 212, and the upper end of the second air duct 22 is provided with the air outlet 221, so that cold air at the bottom in the refrigerating chamber 11 can flow into the first air duct 21, can flow into the second air duct 22 through the first air duct 21, and can flow out of the second air duct 22 to the upper part of the refrigerating chamber 11 through the air outlet 221; by arranging the fan 30 at the air outlet 221, on one hand, power can be provided for the flowing of the cold air in the refrigerating chamber 11, on the other hand, the flowing direction of the cold air at the air outlet 221 can be changed, the cold air can flow towards the periphery of the air outlet 221 under the driving of the fan 30, the uniformity of the cold air in the refrigerating chamber 11 can be effectively improved, the temperature difference between the upper part and the lower part of the refrigerating chamber 11 is reduced, and each part in the refrigerating chamber 11 can meet the temperature requirement of the object to be refrigerated.

Optionally, first wind channel 21 is the cuboid structure, and first wind channel 21 includes roof, bottom plate and two curb plates, and two curb plates are along vertical setting in walk-in 11, and the lower extreme of two curb plates all is connected with the bottom plate, and the upper end of two sides all is connected with the roof, and bottom plate, two curb plates and roof inject first wind channel 21 jointly.

Optionally, the inner bottom plate of the refrigerating chamber 11 is provided with a groove adapted to the bottom plate of the first air duct 21, so that the bottom plate of the first air duct 21 can be clamped with the inner bottom plate of the refrigerating chamber 11, so as to facilitate the installation and the removal of the first air duct 21 and the refrigerating chamber 11.

Optionally, the fan 30 is a small size centrifugal fan 30. Therefore, the installation space required by the fan 30 can be effectively reduced, a large storage space in the refrigerating chamber 11 is ensured, and the storage space of the refrigerating chamber 11 cannot become small due to the addition of the fan 30.

In some alternative embodiments, the first air inlet 211 is provided with a notch 213 penetrating both sides of the first air inlet 211; and/or, the second air inlet 212 is provided with a notch 213 penetrating through two sides of the second air inlet 212.

By adopting the direct cooling refrigerator provided by the embodiment of the disclosure, the notch 213 penetrating through two sides of the first air inlet 211 is arranged at the first air inlet 211, so that the cold air at two sides of the first air inlet 211 can flow into the first air duct 21 through the notch 213, and the notch 213 penetrating through two sides of the second air inlet 212 is arranged at the second air inlet 212, so that the cold air at two sides of the second air inlet 212 can flow into the first air duct 21 through the notch 213, and thus the air intake efficiency of the first air duct 21 can be effectively improved.

Optionally, the first air duct 21 is a cubic structure, and the notches 213 are respectively disposed on two vertical sidewalls of the first air duct 21.

Optionally, the refrigerating compartment 11 includes a first side wall 101 and a second side wall 102, the first side wall 101 and the second side wall 102 are disposed opposite to each other, the first air duct 21 includes a first end and a second end, the first end of the first air duct 21 is vertically provided with a first air inlet 211, the second end of the first air duct 21 is provided with a second air inlet 212, the first end is disposed toward the first side wall 101, the second end is disposed toward the second side wall 102, the first end and the second end are both provided with an arc notch 213, an opening direction of the arc notch 213 of the first end is disposed toward the first side wall 101, and an opening direction of the arc opening of the first end is disposed toward the second side wall 102.

Thus, by providing the arc-shaped notches 213 at the first and second ends, the cool air flow area of the first and second air inlets 211 and 212 can be effectively increased. The opening direction of the arc-shaped notch 213 is set towards the inner wall of the refrigerating wall, so that the air inlet requirement of the first air duct 21 can be met, and meanwhile, the stored objects in the refrigerating chamber 11 are prevented from falling into the first air duct 21 from the notch 213.

In some alternative embodiments, the connection between the second air duct 22 and the first air duct 21 is an arc surface, so that the cold air in the first air duct 21 flows into the second air duct 22.

By adopting the direct cooling freezer provided by the embodiment of the disclosure, the transition arc connection is made at the connection position of the second air duct 22 and the first air duct 21, so that the collision of cold air entering from the first air inlet 211 and the second air inlet 212 at the connection position of the first air duct 21 and the second air duct 22, which influences the flow of air flow, can be effectively reduced. Compared with the connection mode that the connection position of the first air duct 21 and the second air duct 22 is a right angle, the cold air flow resistance can be effectively reduced, and the air outlet effect of the second air duct 22 is improved.

In some alternative embodiments, the second air chute 22 is integrally formed with the first air chute 21.

By adopting the direct cooling refrigerator provided by the embodiment of the disclosure, the second air channel 22 and the first air channel 21 are integrally formed, so that the connection reliability of the first air channel 21 and the second air channel 22 and the closure of a cold air flow channel can be effectively improved, and the situation that the connection between the second air channel 22 and the first air channel 21 generates a gap or is unreliable due to the acting force of a storage object in the refrigerating chamber 11 on the first air channel 21 or the second air channel 22 and the air outlet effect of the air channel assembly 20 is influenced is avoided.

In some optional embodiments, the direct-cooled cooler further comprises: the fan cover 40 is sleeved outside the fan 30, a plurality of air supply outlets 41 are formed in the wall surface of the fan cover 40 facing the exhaust outlet 312 of the fan 30 along the air outlet direction of the fan 30, and the plurality of air supply outlets 41 are uniformly distributed on the wall surface of the fan cover 40 from top to bottom.

Adopt the direct-cooling freezer that this disclosed embodiment provided, combine and show in fig. 4, through setting up fan guard 40, can separate the stock in fan 30 and the walk-in 11, on the one hand can avoid when placing the stock article in walk-in 11, the stock article drops on fan 30 and leads to fan 30 to damage or damaged condition to take place, on the other hand can prevent effectively that the stock article in the walk-in is too much, the stock is piled up the periphery of fan 30, the condition that influences the normal work of fan 30 takes place, and then can promote the reliability of direct-cooling freezer. The air outlet 41 is formed in the fan cover 40, so that the air outlet effect of the fan 30 can be ensured while the fan 30 is protected. By arranging the plurality of air supply ports 41 and uniformly distributing the plurality of air supply ports 41 on the fan cover 40, the opening size of the air supply ports 41 can be reduced, and the situation that the stored materials in the refrigerating box fall into the fan cover 40 from the opening to influence the operation of the fan 30 due to the overlarge opening of the air supply ports 41 is avoided.

In some optional embodiments, the cabinet 10 includes a cabinet door 12, the cabinet door 12 is movably disposed at the top of the refrigerating compartment 11 to open or close the refrigerating compartment 11; the height of the top wall of the fan guard 40 is smaller than that of the cabinet door 12, and the distance between the top wall of the fan guard 40 and the bottom of the cabinet body 10 is larger than that between the top wall of the fan guard 40 and the cabinet door 12.

The height of the top wall of the fan guard 40 is less than the height of the cabinet door 12, and the distance between the top wall of the fan guard 40 and the bottom of the cabinet 10 is greater than the distance between the top wall of the fan guard 40 and the cabinet door 12, that is, the fan guard 40 is disposed in the upper space of the refrigerating chamber 11 and has a certain distance from the cabinet door 12.

Adopt the direct cooling formula freezer that this disclosed embodiment provided, through with fan guard 40 set up in the below of cabinet door 12 and with cabinet door 12 between have certain distance, can avoid because cabinet door 12 seals not tight or cabinet door 12 department heat exchange is very fast, cold volume runs off soon and leads to fan 30 frequently to open and close the condition emergence that influences the life of fan 30. In addition, the distance between the top wall of the fan guard 40 and the bottom of the cabinet body 10 is larger than the distance between the top wall of the fan guard 40 and the cabinet door 12, so that the fan 30 can be positioned at the upper part of the refrigerating chamber 11, cold air blown out by the fan 30 can reach the upper space of the refrigerating chamber 11, and the temperature difference between the upper part and the lower part of the refrigerating chamber 11 is reduced.

Optionally, the movement of the cabinet door 12 relative to the cabinet 10 includes sliding or rotating.

Optionally, the cabinet door 12 is made of transparent glass, so that a user can visually see the stored objects in the refrigerating chamber 11, and the user can search the stored objects without opening the cabinet door 12, thereby avoiding the situation that the cold energy in the cabinet body is lost too much due to searching after the cabinet door 12 is opened.

In some optional embodiments, the direct-cooled cooler further comprises: and the connecting rod 50 is used for connecting the fan cover 40 and the side wall of the refrigerating chamber 11 so as to strengthen the connection between the air duct assembly 20 and the refrigerating chamber 11.

By adopting the direct cooling refrigerator provided by the embodiment of the disclosure, the connecting rod 50 is arranged between the side walls of the fan cover 40 and the refrigerating chamber 11, so that the connecting strength between the air duct assembly 20 and the refrigerating chamber 11 can be effectively enhanced.

In some alternative embodiments, the opening at the connection of the connecting rod 50 to the fan guard 40 is closed to prevent wind from the fan 30 from blowing into the connecting rod 50.

With the direct cooling refrigerator provided by the embodiment of the present disclosure, as shown in fig. 4 and 5, the opening at the connection position of the connection rod 50 and the fan guard 40 is closed, that is, the connection rod 50 is a hollow rod structure, since the fan 30 blows air to the periphery, the air supply opening 41 is opened in the circumferential direction of the fan guard 40, after the connection rod 50 is connected with the fan guard 40, the hollow inner cavity of the connection rod 50 is communicated with the inner space of the fan guard 40 through the air supply opening 41, and part of the cold air blown out by the fan 30 flows into the connection rod 50. Seal through the junction with connecting rod 50 and fan guard 40, can make the whole flow direction fan 30 that flow direction of the cold air that the fan 30 blew off around, avoid the inside that the cold air that the fan 30 blew off flowed into connecting rod 50, lead to the cold air that the fan 30 blew off to produce great power loss under the blockking of connecting rod 50, make the cold air can not flow around to fan 30, and then influence the air-out effect of fan 30.

In some alternative embodiments, the fan 30 is a backward tilting centrifugal fan, the axis of the backward tilting centrifugal fan is vertically arranged, and the air suction opening 311 of the backward tilting centrifugal fan is communicated with the air outlet 221.

By adopting the direct cooling refrigerator provided by the embodiment of the present disclosure, as shown in fig. 2 to fig. 6, by providing the backward inclined centrifugal fan, the cold air in the air duct assembly 20 can flow into the inside of the backward inclined centrifugal fan from the air suction port 311 under the driving of the backward inclined centrifugal fan, and blow around the backward inclined centrifugal fan under the action of the backward inclined centrifugal fan. And adopt hypsokinesis formula centrifugal fan, can reduce the required installation space of fan 30 effectively, hypsokinesis formula centrifugal fan still has the noise that produces when the operation is little moreover, the advantage of being convenient for maintain.

Optionally, the backward tilting centrifugal fan includes an impeller 31 and a motor 32, the impeller 31 is in driving connection with an output shaft of the motor 32, and the motor 32 is embedded inside the impeller 31; the impeller 31 includes an upper cover plate, a lower cover plate, and blades; the blades are vertically arranged between the upper cover plate and the lower cover plate and are arc-shaped; the lower cover plate is provided with an air suction opening 311, and an air exhaust opening 312 is formed between the upper cover plate and the lower cover plate. Thus, the backward inclined centrifugal fan can form an airflow model with air inlet and circumferential air outlet on the side wall.

In some optional embodiments, the direct-cooled cooler further comprises: the refrigerator comprises a first temperature sensor, a second temperature sensor and a controller, wherein the first temperature sensor is arranged at the upper part of a refrigerating chamber 11 and is used for detecting the temperature of the upper part of the refrigerating chamber 11; the second temperature sensor is arranged at the lower part of the refrigerating chamber 11 and is used for detecting the temperature of the lower part of the refrigerating chamber 11; the controller is electrically connected to each of the first temperature sensor, the second temperature sensor, and the fan 30, and the controller is configured to control the opening and closing of the fan 30 according to a difference between a temperature detected by the first temperature sensor and a temperature detected by the second temperature sensor.

By adopting the direct cooling refrigerator provided by the embodiment of the disclosure, the temperature difference value between the upper temperature and the lower temperature of the refrigerating chamber 11 can be guaranteed to fluctuate within a certain range by arranging the first temperature sensor, the second temperature sensor and the controller, the temperature difference value between the upper temperature and the lower temperature is guaranteed to be within an allowable range required by food refrigeration, and the temperature uniformity in the refrigerating chamber 11 can be effectively improved.

For example, the controller controls the fan 30 to be turned on when the difference between the temperatures detected by the first and second temperature sensors is greater than 2 ℃, and controls the fan 30 to be turned off when the difference between the temperatures detected by the first and second temperature sensors is less than or equal to 2 ℃.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify 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 direct-cooling freezer, comprising:

a cabinet (10) defining a refrigerating compartment (11);

the air duct assembly (20) is vertically arranged in the refrigerating chamber (11), the air duct assembly (20) comprises a first air duct (21) and a second air duct (22), the first air duct (21) is transversely arranged at the bottom of the refrigerating chamber (11), and a first air inlet (211) and a second air inlet (212) are respectively formed in two ends of the first air duct (21); the second air duct (22) is vertically arranged above the first air duct (21), an air outlet (221) is formed in the upper end of the second air duct (22), and the lower end of the second air duct (22) is communicated with the first air duct (21), so that cold air flowing into the first air duct (21) can flow into the second air duct (22) and flow out of the second air duct (22) from the air outlet (221);

and the fan (30) is arranged at the top of the air duct assembly (20) and communicated with the air outlet (221) so as to drive cold air in the refrigerating chamber (11) to flow into the air duct assembly (20) from the first air inlet (211) and the second air inlet (212) and flow into the fan (30) from the air outlet (221), and flow out from an air outlet (312) of the fan (30).

2. The direct cool refrigerator as claimed in claim 1,

a notch (213) penetrating through two sides of the first air inlet (211) is formed in the first air inlet (211);

and/or the presence of a gas in the gas,

and notches (213) which penetrate through two sides of the second air inlet (212) are formed in the second air inlet (212).

3. The direct cool refrigerator as claimed in claim 1,

the joint of the second air duct (22) and the first air duct (21) is an arc surface, so that cold air flowing into the first air duct (21) from the first air inlet (211) and the second air inlet (212) can be conveniently converged into the second air duct (22).

4. The direct cool refrigerator as claimed in claim 1,

the second air duct (22) and the first air duct (21) are integrally formed.

5. The direct-cooled cooler of claim 1, further comprising:

the fan cover (40) is sleeved on the outer side of the fan, a plurality of air supply ports (41) are formed in the wall surface, facing the air outlet (312) of the fan, of the fan cover (40) along the air outlet direction of the fan, and the air supply ports (41) are sequentially arranged on the wall surface of the fan cover (40) from top to bottom.

6. The direct cool cooler of claim 5,

the cabinet body (10) comprises a cabinet door (12), and the cabinet door (12) is movably arranged at the top of the refrigerating chamber (11) to open or close the refrigerating chamber (11);

the height of the top wall of the fan cover (40) is smaller than that of the cabinet door (12), and the distance between the top wall of the fan cover (40) and the inner bottom of the cabinet body (10) is larger than that between the top wall of the fan cover (40) and the cabinet door (12).

7. The direct cool freezer of claim 6, further comprising:

and the connecting rod (50) is used for connecting the fan cover (40) and the side wall of the refrigerating chamber (11) so as to strengthen the connection between the air duct assembly (20) and the refrigerating chamber (11).

8. The direct cool refrigerator as claimed in claim 7,

the opening of the connecting part of the connecting rod (50) and the fan cover (40) is closed, so that the wind blown out by the fan is prevented from blowing into the connecting rod (50).

9. The direct cool refrigerator as claimed in claim 1,

fan (30) are hypsokinesis formula centrifugal fan, hypsokinesis formula centrifugal fan's axis is along vertical setting, hypsokinesis formula centrifugal fan's inlet scoop (311) with air outlet (221) are linked together.

10. The direct cool cooler as set forth in any of the claims 1 to 9, further comprising:

the first temperature sensor is arranged at the upper part of the refrigerating chamber (11) and used for detecting the temperature of the upper part of the refrigerating chamber (11);

the second temperature sensor is arranged at the lower part of the refrigerating chamber (11) and used for detecting the temperature of the lower part of the refrigerating chamber (11);

a controller electrically connected to the first temperature sensor, the second temperature sensor and the fan, and configured to control the opening and closing of the fan according to a difference between a temperature detected by the first temperature sensor and a temperature detected by the second temperature sensor.

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