CN218096778U - 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 channel assembly is vertically arranged in the refrigerating chamber and comprises an air inlet part and an air outlet part, the air inlet part is arranged at the lower part of the refrigerating chamber and is connected with the refrigerating chamber, and the air inlet part is provided with an air inlet; the air outlet part is arranged above the air inlet part, an air outlet is formed in the upper part of the air outlet part, the lower end of the air outlet part is communicated with the upper end of the air inlet part, an air flow channel is defined in the air inlet part and the air outlet part, and the air inlet and the air outlet are both communicated with the air flow channel; the fan is arranged in the air inlet part to drive cold air in the refrigerating chamber to flow into the air channel assembly from the air inlet and flow out of the air channel assembly from the air outlet. This application can shift the cold air of the indoor lower part of freezer to the upper portion of freezer, promotes the temperature homogeneity in the freezer.

Description

Direct cooling refrigerator

Technical Field

The application relates to the technical field of freezer cabinets, for example to a direct cooling formula freezer.

Background

A refrigerator, also called a freezer, is a device 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 is 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, the upper box body is internally provided with an evaporator, the landing area of the lower bottom support is smaller than that of the upper box body, the side wall of the lower bottom support is provided with a shutter and a temperature control switch, and the top surface of the upper box body is provided with a sealing glass sliding door capable of horizontally moving.

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 an evaporator arranged on the upper part of the refrigerator, cold air is generated on the wall surface of the refrigerator, the cold air is heavier, and can automatically sink in the movement process, so that the cold air can not reach the center of the refrigerator, the temperature of a glass moving door is high, and the temperature is higher when the temperature is closer to the center of the glass moving door, so that the problems of uneven distribution of the upper temperature and the lower temperature and poor refrigeration effect of the refrigerator are 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 of uneven distribution of upper and lower temperatures in the direct-cooling freezer.

Embodiments of a first aspect of the present application provide a direct-cooled refrigerator comprising: a cabinet defining a refrigerating chamber; the air duct assembly is vertically arranged in the refrigerating chamber and comprises an air inlet part and an air outlet part, the air inlet part is arranged at the lower part of the refrigerating chamber and is connected with the refrigerating chamber, and the air inlet part is provided with an air inlet; the air outlet part is arranged above the air inlet part, an air outlet is formed in the upper part of the air outlet part, the lower end of the air outlet part is communicated with the upper end of the air inlet part, an air flow channel is defined in the air inlet part and the air outlet part, and the air inlet and the air outlet are communicated with the air flow channel, so that cold air around the air inlet can flow into the air flow channel and is discharged out of the air flow channel through the air outlet; the fan is arranged in the air inlet part to drive cold air in the refrigerating chamber to flow into the air channel assembly from the air inlet and flow out of the air channel assembly from the air outlet.

In some optional embodiments, the direct-cooled cooler further comprises: the air inlet portion includes first lateral wall, first lateral wall is located to the air intake, the wind channel subassembly still includes: the shielding plate is arranged on one side of the first side wall, and an air inlet channel is defined between the shielding plate and the first side wall so as to shield the air inlet and prevent the air inlet from being blocked by stored matters in the refrigerating chamber.

In some optional embodiments, a notch penetrating through two sides of the air inlet portion is formed at a connection position of the air inlet portion and the refrigerating chamber, so that cold air on two sides of the air inlet portion can flow to the air inlet through the notch.

In some optional embodiments, the notch is arc-shaped, and the opening direction of the arc-shaped notch faces to the direction away from the air inlet part.

In some optional embodiments, the air inlet portion is disposed in the middle of the refrigerating chamber, and the length of the air inlet portion is the same as the width of the refrigerating chamber, so as to divide the storage space of the refrigerating chamber into two parts.

In some optional embodiments, the air outlets are formed in the upper portion of the outer side wall of the air outlet portion, the number of the air outlets in the upper portion of each outer side wall of the air outlet portion is multiple, and the air outlets are uniformly distributed on the side wall of the air outlet portion.

In some alternative embodiments, the air outlet is spaced from the inner bottom wall of the refrigeration compartment by a distance greater than the air outlet is spaced from the inner top wall of the refrigeration compartment.

In some optional embodiments, the air duct assembly further comprises: and the air outlet grille is arranged at the air outlet and is in one-to-one correspondence with the air outlets so as to shield the corresponding air outlets.

In some optional embodiments, the fan is a centrifugal fan and is disposed at the air inlet, an air suction port of the centrifugal fan is communicated with the air inlet, and an air exhaust port of the centrifugal fan is disposed toward the air outlet, so that air outside the air duct assembly flows into the air inlet from the air inlet and flows out of the air duct assembly from the air outlet under the driving of the centrifugal fan.

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 air channel assembly is vertically arranged in the refrigerating chamber, the air inlet part and the air outlet part are distributed in the refrigerating chamber along the vertical direction, the air inlet part is provided with the air inlet, and the air outlet part is provided with the air outlet, so that cold air in the refrigerating chamber can flow into the air channel assembly from the air inlet, flow to the air outlet part from the air inlet part along an air flow channel in the air channel assembly, and then flow out of the air channel assembly from the air outlet of the air outlet part; through locating the fan in the air inlet portion, can provide mobile power for the cold air in the freezer, under the drive of fan, can shift the cold air of freezer lower part to the upper portion of freezer, reach the temperature difference that reduces the upper portion in the freezer and lower part, promote the effect of the temperature homogeneity in the freezer.

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 in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

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

fig. 2 is a schematic cross-sectional view of a direct-cooled freezer provided by an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of an air duct assembly provided by an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of an air duct assembly provided by an embodiment of the present disclosure;

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

FIG. 6 is a cross-sectional schematic view of yet another air duct assembly provided by an embodiment of the present disclosure.

Reference numerals:

10: cabinet body, 11: refrigerating room, 111: first side wall, 112: second side wall, 12: a cabinet door,

20: air duct assembly, 21: air inlet portion, 211: air inlet, 212: first side wall, 22: air outlet portion, 221: an air outlet,

23: shielding plate, 24: notch, 25: an air outlet grille,

26: fan, 261: housing, 2611: inlet scoop, 2612: air outlet, 262: impeller, 263: an electric motor.

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 devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, 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 under appropriate circumstances such that embodiments of the present disclosure described herein may be made. 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 used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to 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 may be understood as specific cases by those of ordinary skill in the art.

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; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. 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. E.g., 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. 1-6, in which arrows indicate the flow direction of air, the disclosed embodiment provides a direct-cooling refrigerator including a cabinet 10, an air duct assembly 20, and a fan 26, 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 an air inlet part 21 and an air outlet part 22, the air inlet part 21 is arranged at the lower part of the refrigerating chamber 11 and connected with the refrigerating chamber 11, and the air inlet part 21 is provided with an air inlet 211; the air outlet part 22 is arranged above the air inlet part 21, the upper part of the air outlet part 22 is provided with an air outlet 221, the lower end of the air outlet part 22 is communicated with the upper end of the air inlet part 21, an air flow channel is defined in the air inlet part 21 and the air outlet part 22, the air inlet 211 and the air outlet 221 are both communicated with the air flow channel, and the air channel assembly 20 enables cold air around the air inlet 211 to flow into the air flow channel and be discharged out of the air flow channel through the air outlet 221; the fan 26 is disposed in the air inlet portion 21, and the fan 26 drives the cool air in the refrigerating compartment 11 to flow into the air duct assembly 20 from the air inlet 211 and flow out of the air duct assembly 20 from the air outlet 221.

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; by vertically arranging the air duct assembly 20 in the refrigerating chamber 11, vertically distributing the air inlet part 21 and the air outlet part 22 in the refrigerating chamber 11, arranging the air inlet 211 on the air inlet part 21 and the air outlet part 221 on the air outlet part 22, cold air in the refrigerating chamber 11 can flow into the air duct assembly 20 from the air inlet 211 and flow to the air outlet part 22 from the air inlet part 21 along an air flow channel in the air duct assembly 20, and then flow out of the air duct assembly 20 from the air outlet 221 of the air outlet part 22; the fan 26 is arranged in the air inlet part 21, so that flowing power can be provided for cold air in the refrigerating chamber 11, the cold air at the lower part in the refrigerating chamber 11 is transferred to the upper part in the refrigerating chamber 11 under the driving of the fan 26, and the effects of reducing the temperature difference between the upper part and the lower part in the refrigerating chamber 11 and improving the temperature uniformity in the refrigerating chamber 11 are achieved.

Optionally, the cabinet 10 includes a cabinet door 12, the cabinet door 12 is movably disposed at the top of the refrigerating compartment 11, and the cabinet door 12 is used for opening or closing the refrigerating compartment 11.

Alternatively, the movement of the cabinet door 12 relative to the cabinet 10 may include 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, the user can search the stored objects without opening the cabinet door 12, and the situation that cold energy is lost due to searching after the cabinet door 12 is opened can be avoided.

In some alternative embodiments, the air inlet portion 21 includes a first sidewall 212, the air inlet 211 is disposed on the first sidewall 212, and the air duct assembly 20 further includes: and a shielding plate 23 disposed at one side of the first sidewall 212, wherein an air inlet passage is defined between the shielding plate 23 and the first sidewall 212 to shield the air inlet 211 and prevent the storage in the refrigerating compartment 11 from blocking the air inlet 211.

By adopting the direct cooling freezer provided by the embodiment of the disclosure, the air inlet 211 is arranged on the first side wall 212 of the air inlet part 21, so that the cold air outside the lower part of the air duct assembly 20 flows into the air duct assembly 20 from the air inlet 211 of the first side wall 212, in the actual use process, because the air inlet 211 is positioned at the lower part of the air duct assembly 20, when more food is stored in the refrigerating chamber 11, the air inlet 211 may be blocked or even completely blocked, and thus the air duct assembly 20 cannot work normally, and by arranging the shielding plate 23, the air inlet 211 and the storage in the refrigerating chamber 11 can be separated, and meanwhile, an air inlet channel is formed between the shielding plate 23 and the first side wall 212, so that the occurrence of the situation that the work of the air duct assembly 20 is influenced by the fact that more food is stored in the refrigerating chamber 11 blocks the air inlet 211 can be effectively prevented.

Optionally, the distance between the shielding plate 23 and the first sidewall 212 is smaller than or equal to the thickness dimension of the air inlet portion 21. Thus, the stored materials in the refrigerating compartment 11 can be effectively prevented from falling into the intake opening 211 from the intake duct.

Optionally, the flow area of the air inlet 211 is larger than the flow area of the air outlet 221, so that the air inlet area of the air inlet 211 is increased to ensure smooth air inlet of the air duct assembly 20, and further ensure the air outlet effect of the air duct assembly 20.

In some alternative embodiments, a notch 24 is formed through both sides of the air inlet portion 21 at the connection between the air inlet portion 21 and the refrigerating compartment 11, so that the cool air on both sides of the air inlet portion 21 can flow to the air inlet 211 through the notch 24.

By adopting the direct cooling freezer provided by the embodiment of the disclosure, the gaps 24 penetrating through the two sides of the air inlet portion 21 are arranged, so that the cold air on the two sides of the air inlet portion 21 can flow to the air inlet channel formed between the shielding plate 23 and the first side wall 212 along the gaps 24 and flow into the air inlet 211 along the air inlet channel, the air inlet flow area of the air inlet channel can be increased, and the air inlet air quantity is increased. In addition, cold air on both sides of the air inlet part 21 can be reduced, and the condition that the cold quantity at the lower part in the refrigerating chamber 11 is not uniformly distributed can be avoided.

In some alternative embodiments, the notch 24 is arc-shaped, and the opening direction of the arc is set to face away from the air inlet portion 21.

Compared with the square notch 24, the direct cooling freezer provided by the embodiment of the disclosure has the advantages that the arc-shaped notch 24 can effectively increase the air intake flow area of the air intake channel under the same area with the size.

In some alternative embodiments, the air inlet portion 21 is provided at the middle of the refrigerating compartment 11, and the length of the air inlet portion 21 and the width of the refrigerating compartment 11 are the same to divide the storage space of the refrigerating compartment 11 into two parts.

Adopt the direct-cooling freezer that this disclosed embodiment provided, through setting up air inlet portion 21, can divide into two parts with the storage space in the walk-in 11, the user of being convenient for is categorised in walk-in 11 and is deposited, and then the user later stage of being convenient for looks for the deposit.

Alternatively, as shown in fig. 2 and 3, the air inlet portion 21 is a three-dimensional structure, and the front end, the rear end and the lower end of the air inlet portion 21 are fixedly connected to the inner side wall of the refrigerating compartment 11.

Thus, the coupling strength of the air inlet portion 21 and the refrigerating compartment 11 can be secured.

Optionally, as shown in fig. 2, notches 24 are formed at the joints between the left and right ends of the air inlet portion 21 and the refrigerating chamber 11 and at the joints between the lower ends of the air inlet portion and the refrigerating chamber 11.

Thus, the gaps 24 are formed at the joints of the air inlet parts 21 and the refrigerating chamber 11, so that the air inlet area of the air inlet channel can be increased, and the air inlet efficiency of the air duct assembly 20 can be effectively improved.

Alternatively, as shown in fig. 1 in combination, the distance between the first side wall 212 of the air inlet part 21 and the first wall 111 of the refrigerating compartment 11 is greater than the distance between the first side wall 212 of the air inlet part 21 and the second wall 112 of the refrigerating compartment 11; the first wall 111 is disposed opposite to the second wall 112, and the first wall 111 is disposed opposite to the first sidewall 212.

The distance between the first sidewall 212 of the air inlet portion 21 and the first wall 111 of the refrigerating compartment 11 is greater than the distance between the first sidewall 212 of the air inlet portion 21 and the second wall 112 of the refrigerating compartment 11, that is, the air inlet portion 21 is disposed closer to the wall of the refrigerating compartment 11 toward which the sidewall on the side where the air inlet 211 is not opened.

Thus, the thickness of the shielding plate 23 and the air inlet portion 21 at the two sides of the air inlet channel are different, the air resistance to the cold air flowing to the air inlet channel at the two sides of the air duct assembly 20 is also different, it can be seen from fig. 4 that the thickness of the air inlet portion 21 is much greater than that of the shielding plate 23, and then the flow resistance to the cold air at the one side of the air inlet portion 21 of the air inlet channel is greater than that to the cold air at the one side of the shielding plate 23 of the air inlet channel, which can lead to a certain difference in the amount of reduction of the cold air at the two sides, by adjusting the setting position of the air inlet portion 21, the amount of reduction of the cold air at the two sides of the air inlet portion 21 can be approximately consistent, and the occurrence of the situation that the temperature difference value at the two sides of the air inlet portion 21 is greater can be avoided.

In some optional embodiments, the air outlets 221 are formed in the upper portions of the outer sidewalls of the air-out portion 22, the number of the air outlets 221 on the upper portion of each outer sidewall of the air-out portion 22 is multiple, and the multiple air outlets 221 are sequentially disposed on the sidewalls of the air-out portion 22.

By adopting the direct-cooling freezer provided by the embodiment of the disclosure, the air outlets 221 are arranged on the side walls of the air outlet part 22 in all directions, so that the cold air can flow to all directions of the air outlet part 22 along the air outlets 221, the cold air can reach all over the upper space of the refrigerating chamber 11, the cold quantity in the upper space of the refrigerating chamber 11 is uniformly increased, the temperature nonuniformity in the refrigerating chamber 11 is reduced, and the refrigerating effect of the refrigerating chamber 11 is improved.

In some alternative embodiments, the duct assembly 20 further comprises: and the air outlet grilles 25 are arranged at the air outlets 221, and the air outlet grilles 25 are arranged corresponding to the air outlets 221 one by one to shield the corresponding air outlets 221.

By adopting the direct-cooling freezer provided by the embodiment of the disclosure, the air outlet grid 25 is arranged at the air outlet 221, and the air outlet grid 25 shields the air outlet 221, so that when a user places a to-be-stored object into the refrigerating chamber 11, the stored object directly falls into the air channel assembly 20 from the air outlet 221, and the normal work of the air channel assembly 20 is prevented from being influenced.

Optionally, an included angle between an extension line of the air outlet grille 25 and a vertical plane of the air outlet 221 is between 0 and 90 degrees. Preferably, the contained angle is 45 degrees, and like this, air-out grid 25 neither can play fine effect of sheltering from in the air-out effect that influences air outlet 221, can prevent effectively that the condition that waits to store the thing from falling into in the wind channel subassembly 20 from the top of air outlet 221 takes place.

Optionally, the air outlet grille 25 is rotatably disposed at the air outlet 221. Thus, when the fan 26 of the air duct assembly 20 works, the air outlet grille 25 can be rotated to a fixed position, the air outlet 221 is opened, so that cold air in the air duct assembly 20 can flow out from the air outlet 221, and when the fan 26 of the air duct assembly 20 stops working, the air outlet grille 25 is rotated to an initial position, and the air outlet 221 is closed.

Specifically, the air outlet grille 25 is rotatably connected with the air outlet 221, the air outlet grille 25 is in driving connection with the stepping motor, and the air outlet grille 25 is driven by the stepping motor to rotate around the side edge of the air outlet grille 25 connected with the air outlet 221.

Alternatively, the stepping motor is electrically connected to a controller for synchronously controlling the opening and closing of the stepping motor according to the opening and closing of the blower 26.

In some alternative embodiments, the fan 26 is a centrifugal fan, the centrifugal fan is disposed at the air inlet 211, the air inlet 2611 of the centrifugal fan is communicated with the air inlet 211, and the air outlet 2612 of the centrifugal fan is disposed toward the air outlet 22, so that air outside the air duct assembly 20 flows into the air inlet 211 from the air inlet 211 and flows out of the air duct assembly 20 from the air outlet 221 under the driving of the centrifugal fan.

With the direct cooling refrigerator provided by the embodiment of the present disclosure, as shown in fig. 4 and fig. 6, by providing the centrifugal fan, cold air can enter the inside of the centrifugal fan from the air inlet along the air suction opening 2611, change the air flowing direction inside the centrifugal fan, and flow upward along the air outlet 2612 of the centrifugal fan to the air outlet 221. In addition, centrifugal fan has the effectual characteristics of convulsions, can guarantee the convulsions ventilation effect of wind channel subassembly 20. In addition, centrifugal fan operates steadily, can not produce great vibration at the operation in-process, and the noise of production is little, sets up centrifugal fan in wind channel subassembly 20 and can satisfy the air supply demand when, can also promote user's use effectively and experience.

Optionally, the centrifugal fan includes a housing 261, an impeller 262, and a motor 263, where the housing 261 is provided with an air suction opening 2611 and an air discharge opening 2612, and a cavity is formed inside the housing, the air suction opening 2611 and the air discharge opening 2612 are both communicated with the cavity, the impeller 262 is disposed in the cavity, the motor 263 is disposed in the housing 261 and is in driving connection with the impeller 262, and the motor 263 is configured to drive the impeller 262 to rotate.

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 26, and the controller is configured to control the opening and closing of the fan 26 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 26 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 26 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 refrigerator, comprising:

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

the air channel assembly (20) is vertically arranged in the refrigerating chamber (11), the air channel assembly (20) comprises an air inlet portion (21) and an air outlet portion (22), the air inlet portion (21) is arranged at the lower portion of the refrigerating chamber (11) and connected with the refrigerating chamber (11), and an air inlet (211) is formed in the air inlet portion (21); the air outlet part (22) is arranged above the air inlet part (21), an air outlet (221) is formed in the upper part of the air outlet part (22), the lower end of the air outlet part (22) is communicated with the upper end of the air inlet part (21), an air flow channel is defined in the air inlet part (21) and the air outlet part (22), and the air inlet (211) and the air outlet (221) are communicated with the air flow channel, so that cold air around the air inlet (211) can flow into the air flow channel and is discharged out of the air flow channel through the air outlet (221);

and the fan (26) is arranged in the air inlet part (21) to drive cold air in the refrigerating chamber (11) to flow into the air duct assembly (20) from the air inlet (211) and flow out of the air duct assembly (20) from the air outlet (221).

2. The direct-cooled refrigerator as claimed in claim 1, wherein the air inlet portion (21) comprises a first side wall (212), the air inlet (211) is provided in the first side wall (212), the air duct assembly (20) further comprises:

the shielding plate (23) is arranged on one side of the first side wall (212), and an air inlet channel is defined between the shielding plate (23) and the first side wall (212) so as to shield the air inlet (211) and prevent the storage in the refrigerating chamber (11) from blocking the air inlet (211).

3. The direct-cooled cooler of claim 2, wherein,

and a notch (24) penetrating through two sides of the air inlet part (21) is formed at the joint of the air inlet part (21) and the refrigerating chamber (11), so that cold air at two sides of the air inlet part (21) can flow to the air inlet (211) through the notch (24).

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

breach (24) are the arc, curved opening direction orientation deviates from the direction setting of air inlet portion (21).

5. The direct-cooled cooler of claim 1, wherein,

the air inlet part (21) is arranged in the middle of the refrigerating chamber (11), and the length of the air inlet part (21) is the same as the width of the refrigerating chamber (11) so as to divide the storage space of the refrigerating chamber (11) into two parts.

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

the upper portion of the lateral wall of air-out portion (22) has all been seted up air outlet (221), the upper portion of each lateral wall of air-out portion (22) the quantity of air outlet (221) is a plurality of, and is a plurality of air outlet (221) are located in proper order the lateral wall of air-out portion (22).

7. The direct cooled cooler of claim 6, wherein,

the distance between each air outlet (221) and the inner bottom wall of the refrigerating chamber (11) is larger than the distance between the air outlet (221) and the inner top wall of the refrigerating chamber (11).

8. The direct cooled cooler of claim 7, wherein the air duct assembly (20) further comprises:

the air outlet grille (25) is arranged at the air outlet (221) and is in one-to-one correspondence with the air outlets (221) so as to shield the corresponding air outlets (221).

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

fan (26) are centrifugal fan (26), and locate air intake (211) department, the inlet scoop (2611) of centrifugal fan (26) with air intake (211) are linked together, the air exit (2612) of centrifugal fan (26) orientation air-out portion (22) set up, so that the outer air of wind channel subassembly (20) is in under the drive of centrifugal fan (26) follow air intake (211) flow in air intake (211) and follow air outlet (221) flow out wind channel subassembly (20).

10. The direct cool freezer of any of claims 1-9, 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 (26), and configured to control opening and closing of the fan (26) 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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