CN218096777U - Direct Cooling Freezer - 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 Freezer

technical field

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

Background technique

A freezer, also called a freezer, is a device for storing food and other items at low temperatures. Freezers have become a commonly used electrical appliance for refrigerating food. In order to effectively improve the cooling performance of the refrigerator and facilitate the refrigeration of food, a direct-cooling refrigerator has been proposed in the related art.

A display type refrigerator is disclosed in the related art, which mainly includes two parts: an upper box body and a lower bottom bracket, in which main refrigeration components such as a compressor and a condenser are installed in the lower bottom bracket, and in the upper box body. There is an evaporator, the landing area of the lower bottom bracket is smaller than the area of the upper box, and the side wall of the lower bottom bracket is equipped with louvers and a temperature control switch, and the top surface of the upper box is provided with a translational sealing glass Sliding door.

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

The display freezer in the related art is refrigerated by the evaporator installed on the upper part of the freezer, and cold air is generated on the wall of the freezer. Because the quality of the cold air is relatively heavy, it will automatically sink during the movement, and the cold air will not reach it. The center of the freezer causes the temperature at the glass sliding door to be high, and the closer to the center of the glass sliding door, the higher the temperature is, that is to say, the upper and lower temperature distribution in the freezer is uneven, which leads to the problem of poor cooling effect.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

An embodiment of the present disclosure provides a direct cooling refrigerator to solve the problem of uneven temperature distribution on the upper and lower sides of the direct cooling refrigerator, which leads to poor cooling effect.

The embodiment of the first aspect of the present application provides a direct-cooling refrigerator, the direct-cooling refrigerator includes: including: a cabinet body defining a refrigerator compartment; an air duct assembly vertically arranged in the refrigerator chamber, the The air duct assembly includes a first air duct and a second air duct, the first air duct is horizontally arranged at the bottom of the refrigerating room, and the two ends of the first air duct are respectively opened with a first air inlet and a second air duct. Two air inlets; the second air duct is vertically arranged above the first air duct, the upper end of the second air duct is provided with an air outlet, and the lower end of the second air duct is connected to the first air duct The air passages are connected so that the cold air flowing into the first air passage can flow into the second air passage and flow out of the second air passage through the air outlet; the fan is arranged on the top of the air passage assembly And communicate with the air outlet, so as to drive the cold air in the refrigerator to flow into the air duct assembly through the first air inlet and the second air inlet, and flow into the fan through the air outlet, And flow out from the exhaust port of the fan.

In some optional embodiments, the first air inlet is provided with gaps penetrating both sides of the first air inlet; and/or, the second air inlet is provided with gaps penetrating both sides of the second air inlet. side notch.

In some optional embodiments, the connection between the second air duct and the first air duct is an arc surface, so as to facilitate the flow of the first air from the first air inlet and the second air inlet. The cold air in the channel flows into the second air channel.

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

In some optional embodiments, the direct cooling refrigerator further includes: a fan cover, which is sleeved on the outside of the fan, and the wall of the fan cover faces the air outlet of the fan along the air outlet of the fan. A plurality of air supply ports are provided in the direction, and the plurality of air supply ports are evenly distributed on the wall surface of the fan cover from top to bottom.

In some optional embodiments, the cabinet body includes a cabinet door, which is movably arranged on the top of the refrigerating room to open or close the refrigerating room; wherein, the top wall of the fan cover The height is less than the height of the cabinet door, and the distance between the top wall of the fan cover and the bottom of the cabinet is greater than the distance between the top wall of the fan cover and the cabinet door.

In some optional embodiments, the direct cooling refrigerator further includes: a connecting rod connecting the fan cover and the side wall of the refrigerating room, so as to strengthen the connection between the air duct assembly and the refrigerating room.

In some optional embodiments, the opening at the connection between the connecting rod and the fan cover is closed, so as to prevent the wind blown by the fan from blowing into the connecting rod.

In some optional embodiments, the fan is a backward-curved centrifugal fan, the axis of the backward-curved centrifugal fan is arranged vertically, and the air suction port of the backward-curved centrifugal fan communicates with the air outlet.

In some optional embodiments, the direct cooling refrigerator further includes: a first temperature sensor, disposed on the upper part of the refrigerating room, for detecting the temperature of the upper part of the refrigerating room;

The second temperature sensor is located at the lower part of the refrigerating room and is used to detect the temperature of the lower part of the refrigerating room;

a controller, electrically connected to the first temperature sensor, the second temperature sensor and the fan, configured to The value controls the opening and closing of the fan.

The direct cooling refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

With the direct cooling refrigerator provided by the embodiment of the present disclosure, by defining a refrigerator in the cabinet, food to be refrigerated can be placed in the refrigerator to meet the storage requirements of the food; through vertically connecting the first air duct and the second air duct are arranged in the refrigerator compartment, and the first air inlet and the second air inlet are opened at the two ends of the first air duct and the air outlet is opened at the upper end of the second air duct, so that the cold air at the bottom of the refrigerator compartment can flow into In the first air duct, it flows into the second air duct from the first air duct, and flows out of the second air duct from the air outlet to the upper part of the refrigerating room; by setting the fan at the air outlet, on the one hand, the flow of cold air in the refrigerating room can be improved. Provide power, on the other hand, it can change the flow direction of the cold air at the air outlet. Driven by the fan, the cold air can flow around the air outlet, which can effectively improve the uniformity of the cold air in the refrigerator and reduce the size of the refrigerator. The temperature difference between the upper and lower parts of the refrigerator ensures that every part of the refrigerator meets the temperature requirements of the items to be refrigerated.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

Fig. 1 is a schematic structural view of a direct cooling refrigerator provided by an embodiment of the present disclosure;

Fig. 2 is a partial structural schematic diagram of a direct cooling refrigerator provided by an embodiment of the present disclosure;

3 is a schematic cross-sectional view of a direct cooling refrigerator provided by an embodiment of the present disclosure;

Fig. 4 is a schematic structural diagram of an air duct assembly provided by an embodiment 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 part A in FIG. 5 provided by an embodiment of the present disclosure.

Reference signs:

10: cabinet body, 11: refrigerator compartment, 12: cabinet door, 101: first side wall, 102: second side wall,

20: air duct assembly, 21: first air duct, 211: first air inlet, 212: second air inlet, 213: gap, 22: second air duct, 221: air outlet,

30: fan, 31: impeller, 311: suction port, 312: exhaust port, 32: motor,

40: fan cover, 41: air outlet,

50: connecting rod.

detailed description

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, 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 cases, well-known structures and direct cooling refrigerators may be shown simplified to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear" etc. are based on the orientations or positional relationships shown in the drawings. Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not intended to limit that the indicated direct cooling refrigerator, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the embodiments of the present disclosure according to specific situations.

In addition, the terms "setting", "connecting" and "fixing" should be interpreted broadly. For example, "connection" 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 intermediary, or two direct cooling refrigerators , Internal communication between elements or components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific situations.

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

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

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

1-6, the arrows in the figures indicate the flow direction of the air. The embodiment of the present disclosure provides a direct-cooling refrigerator. The direct-cooling refrigerator includes: a cabinet body 10, an air duct assembly 20, and a fan 30. The cabinet body 10 Define the refrigerating room 11; the air channel assembly 20 is vertically arranged in the refrigerating room 11, the air channel assembly 20 includes a first air channel 21 and a second air channel 22, and the first air channel 21 is arranged horizontally in the refrigerating room 11 At the bottom, the first air duct 21 is provided with a first air inlet 211 and a second air inlet 212 at both ends; There is an air outlet 221 and the lower end of the second air duct 22 communicates with the first air duct 21, so that the 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 through the air outlet 221 22. The fan 30 is arranged on the top of the air duct assembly 20 and communicates with the air outlet 221. The fan 30 drives the cold air in the refrigerator compartment 11 to flow into the air duct assembly 20 from the first air inlet 211 and the second air inlet 212 and The air flows into the fan 30 from the air outlet 221 , and flows from the air outlet 312 of the fan 30 toward the surroundings of the fan 30 .

Using the direct cooling refrigerator provided by the embodiment of the present disclosure, by defining a refrigerator room 11 in the cabinet body 10, food to be refrigerated can be placed in the refrigerator room 11 to meet the food storage requirements; The first air duct 21 and the second air duct 22 are arranged in the refrigerator compartment 11, and the first air inlet 211 and the second air inlet 212 are opened at both ends of the first air duct 21 and at the upper end of the second air duct 22. The air outlet 221 is set up, so that the cold air at the bottom of the refrigerator compartment 11 can flow into the first air duct 21 and flow into the second air duct 22 from the first air duct 21, and flow out of the second air duct 22 to the refrigerator compartment 11 through the air outlet 221 the upper part of the top; by setting the blower fan 30 at the air outlet 221, on the one hand, power can be provided for the flow of cold air in the refrigerating chamber 11, and on the other hand, the flow direction of the cold air at the air outlet 221 can be changed. In this way, the cold air can flow around the air outlet 221, which can effectively improve the uniformity of the cold air in the refrigerating room 11, reduce the temperature difference between the upper and lower parts of the refrigerating room 11, and ensure that every part of the refrigerating room 11 All meet the temperature requirements of the object to be refrigerated.

Optionally, the first air duct 21 is a cuboid structure, the first air duct 21 includes a top plate, a bottom plate and two side plates, the two side plates are vertically arranged in the refrigerator compartment 11, and the lower ends of the two side plates are connected to the The bottom plate is connected, and the upper ends of the two sides are connected to the top plate. The bottom plate, the two side plates and the top plate together define a first air duct 21 .

Optionally, the inner bottom plate of the refrigerating room 11 is provided with a groove matching the bottom plate of the first air channel 21, so that the bottom plate of the first air channel 21 can be engaged with the inner bottom plate of the refrigerating room 11, so that the second An installation and disassembly of the air duct 21 and the refrigerating chamber 11.

Optionally, the fan 30 is a small-sized centrifugal fan 30 . In this way, the installation space required by the fan 30 can be effectively reduced to ensure that there is still a large storage space in the refrigerating room 11 , and the storage space of the refrigerating room 11 will not become small due to the addition of the fan 30 .

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

Using the direct cooling refrigerator provided by the embodiment of the present disclosure, the first air inlet 211 is provided with a gap 213 passing through both sides of the first air inlet 211, so that the cold air on both sides of the first air inlet 211 can flow in through the gap 213 In the first air duct 21, the second air inlet 212 is provided with a gap 213 passing through both sides of the second air inlet 212, so that the cold air on both sides of the second air inlet 212 can flow into the first air duct 21 through the gap 213. In this way, the air intake efficiency of the first air duct 21 can be effectively improved.

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

Optionally, the refrigerating room 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 oppositely arranged, the first air duct 21 includes a first end and a second end, the first The first end of the air duct 21 is provided with a first air inlet 211 along the vertical direction, and the second end of the first air duct 21 is provided with a second air inlet 212 along the vertical direction. The two ends are arranged toward the second side wall 102, and the first end and the second end are provided with an arc-shaped notch 213. The opening direction of the opening is set toward the second side wall 102 .

In this way, the cold air circulation area of the first air inlet 211 and the second air inlet 212 can be effectively increased by providing the arc-shaped notch 213 at the first end and the second end. The opening direction of the arc-shaped notch 213 is set toward the inner wall of the refrigerating wall, so as to meet the air intake requirements of the first air duct 21 and prevent the stored items in the refrigerating chamber 11 from falling into the first air duct 21 through the notch 213 .

In some optional 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 .

The direct cooling refrigerator provided by the embodiment of the present disclosure can effectively reduce the size of the first air inlet 211 and the second air inlet 212 by connecting the connection between the second air duct 22 and the first air duct 21 with a transition arc. The incoming cold air collides at the junction of the first air duct 21 and the second air duct 22, affecting the flow of the airflow. Compared with the right-angled connection at the connection between the first air duct 21 and the second air duct 22 , the cold air flow resistance can be effectively reduced, and the air outlet effect of the second air duct 22 can be improved.

In some optional embodiments, the second air duct 22 is integrally formed with the first air duct 21 .

Using the direct cooling refrigerator provided by the embodiment of the present disclosure, by integrally forming the second air duct 22 and the first air duct 21, the connection reliability and cooling performance of the first air duct 21 and the second air duct 22 can be effectively improved. The airtightness of the air passage prevents gaps or gaps at the connection between the second air passage 22 and the first air passage 21 due to the force of the first air passage 21 or the second air passage 22 from the storage in the refrigerator compartment 11. The connection is unreliable, and the air outlet effect of the air duct assembly 20 is affected.

In some optional embodiments, the direct cooling refrigerator further includes: a fan cover 40, the fan cover 40 is sleeved on the outside of the fan 30, and the wall surface of the fan cover 40 facing the air outlet 312 of the fan 30 is along the air outlet direction of the fan 30 A plurality of air supply ports 41 are opened, and the plurality of air supply ports 41 are evenly distributed on the wall surface of the fan cover 40 from top to bottom.

Using the direct cooling refrigerator provided by the embodiment of the present disclosure, as shown in FIG. 4 , by setting the fan cover 40, the fan 30 can be separated from the storage in the refrigerating room 11. On the one hand, it can avoid the 11. When placing storage items in the refrigerator, the storage items fall onto the blower fan 30 and cause the blower fan 30 to be damaged or broken. , the situation affecting the normal operation of the fan 30 occurs, thereby improving the reliability of the direct cooling refrigerator. By opening the air outlet 41 on the fan cover 40 , the air outlet effect of the fan 30 can be ensured while protecting the fan 30 . By arranging a plurality of air supply ports 41 and evenly distributing a plurality of air supply ports 41 on the fan cover 40, the opening size of the air supply port 41 can be reduced, avoiding that the opening of the air supply port 41 is too large, causing the storage in the refrigerator to flow through the opening. Falling into the fan cover 40 affects the operation of the fan 30 .

In some optional embodiments, the cabinet body 10 includes a cabinet door 12, and the cabinet door 12 is movably arranged on the top of the refrigerator compartment 11 to open or close the refrigerator compartment 11; wherein, the height of the top wall of the fan cover 40 is less than that of the cabinet The height of the door 12, and the distance between the top wall of the fan cover 40 and the bottom of the cabinet body 10 is greater than the distance between the top wall of the fan cover 40 and the cabinet door 12.

The height of the top wall of the fan cover 40 is less than the height of the cabinet door 12, and the distance between the top wall of the fan cover 40 and the bottom of the cabinet body 10 is greater than the distance between the top wall of the fan cover 40 and the cabinet door 12, that is to say, the fan cover 40 is arranged in the upper space of the refrigerator compartment 11 and has a certain distance from the cabinet door 12 .

By adopting the direct cooling refrigerator provided by the embodiment of the present disclosure, by setting the fan cover 40 under the cabinet door 12 and having a certain distance from the cabinet door 12, it is possible to prevent the The heat exchange is fast, and the cooling capacity is lost quickly, which leads to frequent opening and closing of the fan 30 and affects the service life of the fan 30 . In addition, by setting the distance between the top wall of the fan cover 40 and the bottom of the cabinet 10 greater than the distance between the top wall of the fan cover 40 and the cabinet door 12, it can be ensured that the fan 30 is located at the top of the refrigerator compartment 11, and the cold air blown by the fan 30 The upper space of the refrigerating room 11 can be reached, thereby reducing the temperature difference between the upper part and the lower part of the refrigerating room 11 .

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

Optionally, the cabinet door 12 is made of a transparent glass material, so that the user can visually see the storage in the refrigerating chamber 11, and then the user can search for the storage without opening the cabinet door 12, thereby avoiding the need to open the cabinet door. 12. Searching after opening causes excessive cooling loss in the cabinet.

In some optional embodiments, the direct cooling refrigerator further includes: a connecting rod 50 connecting the fan cover 40 and the side wall of the refrigerating chamber 11 to strengthen the connection between the air duct assembly 20 and the refrigerating chamber 11 .

In the direct cooling refrigerator provided by the embodiment of the present disclosure, the connection strength between the air duct assembly 20 and the refrigerator compartment 11 can be effectively enhanced by providing the connecting rod 50 between the fan cover 40 and the side wall of the refrigerator compartment 11 .

In some optional embodiments, the opening at the connection between the connecting rod 50 and the fan cover 40 is closed to prevent the wind blown by the fan 30 from blowing into the connecting rod 50 .

Using the direct-cooling refrigerator provided by the embodiment of the present disclosure, as shown in FIG. 4 and FIG. The blower fan 30 blows the air around, so the air supply port 41 is opened in the circumferential direction of the fan cover 40. After the connecting rod 50 is connected with the fan cover 40, the hollow inner cavity of the connecting rod 50 communicates with the inner space of the fan cover 40 through the air supply port 41. , the cold air blown out by the fan 30 will partly flow into the connecting rod 50 . By sealing the connection between the connecting rod 50 and the fan cover 40, all the cold air blown out by the fan 30 can flow to the surroundings of the fan 30, so as to prevent the cold air blown out by the fan 30 from flowing into the inside of the connecting rod 50, causing the cold air blown out by the fan 30 Blocked by the connecting rod 50 , a large power loss occurs, so that the cold air cannot flow to the surroundings of the fan 30 , thereby affecting the wind output effect of the fan 30 .

In some optional embodiments, the fan 30 is a backward-curved centrifugal fan, the axis of the backward-curved centrifugal fan is arranged vertically, and the suction port 311 of the backward-curved centrifugal fan communicates with the air outlet 221 .

Using the direct-cooling refrigerator provided by the embodiment of the present disclosure, as shown in FIG. 2 to FIG. 6 , by setting a backward-inclined centrifugal fan, the cold air in the air duct assembly 20 can be driven by the backward-inclined centrifugal fan. It flows into the inside of the backward-inclined centrifugal fan from the air suction port 311, and blows to the surroundings of the backward-inclined centrifugal fan under the action of the backward-inclined centrifugal fan. Moreover, the use of the backward-inclined centrifugal fan can effectively reduce the installation space required by the fan 30 , and the backward-inclined centrifugal fan also has the advantages of low noise during operation and easy maintenance.

Optionally, the backward inclined centrifugal fan includes an impeller 31 and a motor 32, the impeller 31 is drivingly connected with the output shaft of the motor 32, and the motor 32 is embedded in the inside of the impeller 31; the impeller 31 includes an upper cover plate, a lower cover plate and blades; Vertically arranged between the upper cover and the lower cover, and the blades are arc-shaped; the lower cover is provided with an air suction port 311, and an air exhaust port 312 is formed between the upper and lower cover plates. In this way, the backward-curved centrifugal fan can form an airflow model in which the wind enters the side wall and the wind exits in the circumferential direction.

In some optional embodiments, the direct cooling refrigerator also includes: a first temperature sensor, a second temperature sensor and a controller, the first temperature sensor is arranged on the upper part of the refrigerating room 11, and the first temperature sensor is used to detect the temperature of the refrigerating room 11. The temperature of the upper part; the second temperature sensor is located at the bottom of the refrigerating chamber 11, and the second temperature sensor is used to detect the temperature of the lower part of the refrigerating chamber 11; the controller is electrically connected with the first temperature sensor, the second temperature sensor and the blower fan 30, and controls The controller is configured to control the opening and closing of the fan 30 according to the difference between the temperature detected by the first temperature sensor and the temperature detected by the second temperature sensor.

Using the direct cooling refrigerator provided by the embodiment of the present disclosure, by setting the first temperature sensor, the second temperature sensor and the controller, it can ensure that the temperature difference between the upper temperature and the lower temperature of the refrigerating room 11 fluctuates within a certain range, ensuring The temperature difference between the upper temperature and the lower temperature is within the allowable range required by food refrigeration, which can effectively improve the temperature uniformity in the refrigerator compartment 11 .

Exemplarily, when the temperature difference detected by the first temperature sensor and the second temperature sensor is greater than 2°C, the controller controls the fan 30 to start, and when the temperature difference detected by the first temperature sensor and the second temperature sensor is less than or equal to At 2°C, the controller controls the fan 30 to be turned off.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. 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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