CN217817644U

CN217817644U - Air duct structure and refrigerating device

Info

Publication number: CN217817644U
Application number: CN202221924366.4U
Authority: CN
Inventors: 龙凌锋; 胡浩然; 张南佑; 张兴端; 谭龙; 董亚飞
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-15
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to a wind channel structure and refrigerating plant, the wind channel structure includes: the main body is provided with a mounting hole in a penetrating way and a containing groove communicated with the mounting hole; the heat exchange assembly comprises a connecting part and a heat exchange part which are connected with each other, the connecting part is arranged in the mounting hole and is provided with a first end surface close to the accommodating groove and a second end surface deviating from the accommodating groove, and the heat exchange part is accommodated in the accommodating groove; the fan is rotatably arranged on the first end surface of the connecting part; and the refrigerating piece is arranged on the second end face of the connecting part. This application can be when the difference of walk-in current temperature and preset temperature when predetermineeing the within range, opens the wind channel structure and carries out the accurate accuse temperature of minizone to the walk-in, specifically, realizes the control of temperature through refrigerating the piece to mutually support through fan and heat exchange assemblies, realize the heat exchange, thereby realize the regulation to the temperature in the walk-in, make the temperature more stable in the walk-in.

Description

Air duct structure and refrigerating device

Technical Field

The utility model relates to a temperature control technical field especially relates to a wind channel structure and refrigerating plant.

Background

In order to meet different temperature requirements for keeping goods, a refrigerating apparatus is generally provided with a refrigerating chamber and a freezing chamber having different temperatures. However, in the single-system refrigeration apparatus, in order to maintain the freezer temperature, the evaporator temperature is too low, and the thermal inertia is large. Therefore, when the refrigeration of the refrigerating chamber is considered, the refrigerating chamber is started and stopped frequently, the temperature fluctuation range of the refrigerating chamber is large, and the safe storage of articles in the refrigerating chamber is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide an air duct structure and a refrigeration device for solving the problem of a single-system refrigeration device that the temperature fluctuation range of the refrigerating chamber is large.

In a first aspect, the present application provides an air duct structure for a refrigerating compartment, comprising:

the main body is provided with a mounting hole in a penetrating way and a containing groove communicated with the mounting hole;

the heat exchange assembly comprises a connecting part and a heat exchange part which are connected with each other, the connecting part is arranged in the mounting hole and is provided with a first end face close to the accommodating groove and a second end face deviating from the accommodating groove, and the heat exchange part is accommodated in the accommodating groove;

the fan is rotatably arranged on the first end surface of the connecting part; and

the refrigerating piece is installed on the second end face of the connecting portion.

In some embodiments, the accommodating groove includes a first groove group and a second groove group both communicating with the mounting hole, and the first groove group and the second groove group are respectively located on two opposite sides of the mounting hole along a first direction.

In some embodiments, the first slot set includes at least two first sub-slots each communicating with the mounting hole; and/or the second groove group comprises at least two second sub-grooves which are communicated with the mounting hole.

In some embodiments, a first air opening is formed at one end of each first subslot, which faces away from the mounting hole; and/or a second air opening is formed at one end of each second subslot, which is far away from the mounting hole.

In some embodiments, the heat exchange portion includes at least two first sub-portions and/or at least two second sub-portions, each of the first sub-portions is disposed in the first sub-grooves in a one-to-one correspondence manner, and/or each of the second sub-portions is disposed in the second sub-grooves in a one-to-one correspondence manner.

In some embodiments, the fan has first and second opposite directions of rotation, air being directed from the first slot set to the second slot set when the fan is rotated in the first direction of rotation; when the fan rotates in the second rotation direction, air is guided to the first slot group from the second slot group.

In some embodiments, the fan is configured as a centrifugal fan.

In some embodiments, a drain hole is further formed through the main body, and the drain hole is communicated with one end of the second groove group, which is away from the mounting hole.

In some embodiments, the second end surface of the connecting portion is provided with a groove for accommodating the refrigeration piece.

In some embodiments, the heat exchanging part is configured as a heat dissipating fin.

In some embodiments, the refrigeration member is configured as an electronic refrigeration pill.

In a second aspect, the application provides a refrigerating device, include the walk-in and locate wind channel structure in the walk-in, wind channel structure be as above wind channel structure, the main part has been seted up one side orientation of storage tank the walk-in sets up.

In some embodiments, the refrigeration device comprises an evaporator, and the side of the refrigeration element facing away from the second end face is connected with the evaporator.

In some embodiments, the refrigerating device includes a freezing chamber and a freezing air duct, the freezing air duct is communicated with the freezing chamber and the refrigerating chamber and is connected with the air duct structure, and the freezing air duct is used for refrigerating the freezing chamber and guiding cold air in the freezing chamber into the refrigerating chamber.

In some embodiments, the refrigeration device comprises a detection component and a control component which are in communication connection, wherein the detection component is used for detecting the current temperature in the refrigerating chamber;

when the difference value between the current temperature and the preset temperature is out of a preset range, the control assembly controls the freezing air duct to guide the cold air in the freezing chamber into the refrigerating chamber;

and when the difference value between the current temperature and the preset temperature is within the preset range, the control assembly opens the air duct structure.

Above-mentioned wind channel structure and refrigerating plant can open the wind channel structure and carry out the accurate accuse temperature of miniscope to the walk-in when the difference of walk-in current temperature and preset temperature is in presetting the within range, specifically, realizes the control of temperature through refrigeration piece to mutually support through fan and heat exchange assembly, realize the heat exchange, thereby realize the regulation to the temperature in the walk-in, make the temperature more stable in the walk-in.

Drawings

FIG. 1 is a schematic diagram of a refrigeration unit according to some embodiments of the present disclosure;

FIG. 2 is a schematic structural view of a main body of an air duct structure according to some embodiments of the present disclosure;

FIG. 3 is a schematic front view of a heat exchange assembly in a duct structure according to some embodiments of the present disclosure;

FIG. 4 is a side view of a heat exchange assembly in a duct structure according to some embodiments of the present application;

FIG. 5 is a schematic perspective view of a fan in an air duct structure according to some embodiments of the present disclosure;

FIG. 6 is a schematic view of the back side of a heat exchange assembly in the duct structure according to some embodiments of the present application;

FIG. 7 is a perspective view of a fan removing blade end cap in the duct structure according to some embodiments of the present application;

in the figure: 1000. a refrigeration device; 100. an air duct structure; 200. an evaporator; 10. a main body; 20. a heat exchange assembly; 30. a fan; 11. mounting holes; 12. a containing groove; 13. a drain hole; 21. a connecting portion; 22. a heat exchanging part; 121. a first groove group; 122. a second groove group; 211. a first end face; 212. a second end face; 213. a groove; 221. a first sub-section; 222. a second sub-section; 1211. a first subslot; 1212. a first tuyere; 1221. a second subslot; 1222. a second tuyere; a. a first direction.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 5, an embodiment of the present invention provides an air duct structure 100 for a refrigerating chamber, including a main body 10, a heat exchange assembly 20, a fan 30, and a refrigerating unit (not shown). Wherein, the main body 10 is provided with a mounting hole 11 and a containing groove 12 communicated with the mounting hole 11. The heat exchange assembly 20 includes a connection portion 21 and a heat exchange portion 22 connected to each other, the connection portion 21 is installed in the installation hole 11 and has a first end surface 211 close to the receiving groove 12 and a second end surface 212 away from the receiving groove 12, and the heat exchange portion 22 is received in the receiving groove 12. The fan 30 is rotatably mounted on the first end surface 211 of the connecting portion 21, and the cooling member is mounted on the second end surface 212 of the connecting portion 21.

It should be noted that the refrigerating element refers to a structure capable of achieving temperature regulation, and the temperature regulation may specifically be temperature increase or temperature decrease, that is, the refrigerating element may achieve two states of refrigeration or heating. The fan 30 is a component which realizes air flow through self rotation, and realizes exchange of cold and hot air flows in a target environment through an air flow mode, so that heat exchange is realized.

Specifically, when the temperature of the target environment is controlled, the main body 10 is disposed in the target environment, and the side where the accommodating groove 12 is disposed faces the inside of the target environment. And according to the comparison result between the current temperature and the preset temperature of the target environment, whether the target environment needs to be subjected to temperature regulation or not can be known.

When the current temperature of the target environment is equal to the preset temperature, temperature regulation and control of the target environment are not needed. When the current temperature of the target environment is not equal to the preset temperature, the temperature of the target environment can be controlled through the air duct structure 100.

At this time, the refrigerating member is turned on to perform cooling or heating, and the refrigerating member transfers the temperature to the heat exchange assembly 20 connected thereto. At the same time, the fan 30 rotates to flow the air in the target environment, and the air contacts the heat exchange assembly 20 during the flow process, thereby performing heat exchange. Thus, temperature regulation within the target environment can be achieved.

The above-described air duct structure 100 may be applied to a refrigerating chamber, and particularly, for a single-system refrigerating apparatus, a freezing chamber and a refrigerating chamber share the same set of refrigerating system. However, the freezer compartment and the refrigerator compartment do not have the same temperature requirements. Since the refrigerating chamber is lower in temperature than the freezing chamber, a single system refrigeration system is generally used for refrigerating the freezing chamber, and when the refrigerating chamber needs to be refrigerated, cool air of the freezing chamber is introduced into the refrigerating chamber through the refrigeration system. This results in cold air blowing directly into the refrigerated compartment, which is detrimental to the safe storage of the contents within the refrigerated compartment. On the other hand, under the influence of the temperature of the freezing chamber, the temperature of the evaporator of the refrigerating system is too low, and the thermal inertia is large. If refrigeration of the refrigerating chamber is considered, the refrigerating chamber is frequently started and stopped, the temperature fluctuation range is large, and safe storage of articles in the refrigerating chamber is not facilitated.

Therefore, when the air duct structure 100 is applied to the refrigerating chamber, the refrigerating chamber is heated or refrigerated according to the temperature requirement of the refrigerating chamber, accurate temperature control in a small range can be performed on the refrigerating chamber, the problem that the temperature fluctuation range of the refrigerating chamber is large is effectively solved, and the safety of storage of articles in the refrigerating chamber is improved.

Further, the connection part 21 of the heat exchange unit 20 can be stably mounted in the mounting hole 11 of the body 10. Specifically, the connection portion 21 and the mounting hole 11 can be connected by a snap fit. For example, the outer contour of the connecting portion 21 matches the inner hole profile of the mounting hole 11, so that the connecting portion 21 can pass through the mounting hole 11 and achieve a fixed connection therebetween. Of course, the connection portion 21 and the mounting hole 11 may be connected in other manners, such as riveting or hinging, which will not be described herein.

In some embodiments, heat exchanging portion 22 is configured as a heat sink fin. The radiating fins can be beneficial to the heat dissipation, and the heat exchange efficiency is improved.

The heat dissipating fins are constructed in a strip-shaped structure having one end connected to the connecting portion 21 and the other end extending away from the connecting portion 21. Therefore, the radiating fins can be contacted with air at each position in the target environment, and the uniformity of heat exchange is improved.

Referring to fig. 2 again, in some embodiments, the accommodating groove 12 includes a first groove group 121 and a second groove group 122 both communicated with the mounting hole 11, and the first groove group 121 and the second groove group 122 are respectively located at two opposite sides of the mounting hole 11 along the first direction a.

When the air duct structure 100 is applied to a refrigerating chamber, the first direction a may be set to a vertical direction in order to alleviate the problem of uneven distribution of upper and lower temperatures in the refrigerating chamber. That is, one end of the first slot group 121 is communicated with the mounting hole 11, and the other end extends upwards; one end of the second groove group 122 communicates with the mounting hole 11, and the other end extends downward.

Thus, the first and

second slot groups

121 and 122 are used for guiding the air at the top and bottom of the refrigerating compartment to flow along the first and

second slot groups

121 and 122, respectively, and exchanging heat, thereby alleviating the problem of uneven temperature distribution in the upper and lower parts of the refrigerating compartment.

In some embodiments, the first groove group 121 includes at least two first sub-grooves 1211 each communicating with the mounting hole 11; and/or the second slot group 122 includes at least two second sub-slots 1221 each communicating with the mounting hole 11.

Specifically, the first groove group 121 includes at least two first sub grooves 1211 each communicating with the mounting hole 11, and the second groove group 122 includes at least two second sub grooves 1221 each communicating with the mounting hole 11. Each of the first sub-grooves 1211 has one end communicating with the mounting hole 11 and the other end extending upward in different directions, respectively. One end of each second sub-groove 1221 is communicated with the mounting hole 11, and the other end of each second sub-groove extends downwards along different directions.

Accordingly, the distribution of the first and second sub-grooves 1211 and 1221 can contact more air in the target environment, thereby improving the heat exchange efficiency.

Specifically, in the present embodiment, two first sub-grooves 1211 and two second sub-grooves 1221 are provided. In addition, the shape and length of each of the first sub-grooves 1211 may be different from each other, and the shape and length of each of the second sub-grooves 1221 may also be different from each other, and the specific shape and specific length may be adjusted according to the actual shape of the refrigerating compartment.

By providing at least two first sub-grooves 1211 and at least two second sub-grooves 1221, the contact area between the air and the heat exchange assembly 20 can be further enlarged, so that the temperature distribution in the cooling or heating process is more uniform, and the heat exchange efficiency is improved.

In some embodiments, an end of each first sub-groove 1211 facing away from the mounting hole 11 is formed with a first tuyere 1212; and/or each of the second sub-grooves 1221 is formed with second tuyeres 1222 at an end facing away from the mounting hole 11.

Specifically, one end of each first sub-groove 1211 facing away from the mounting hole 11 is formed with a first tuyere 1212, and one end of each second sub-groove 1221 facing away from the mounting hole 11 is formed with a second tuyere 1222. The first air inlet 1212 and the second air inlet 1222 may be air inlets or air outlets.

The air flows in different directions during the cooling and heating processes. For example, when the refrigerating unit performs refrigeration, hot air at the top of the refrigerating compartment enters each first sub-slot 1211 from the first air opening 1212, passes through each second sub-slot 1221 after heat exchange, and is discharged from the second air opening 1222 to the bottom of the refrigerating compartment, thereby performing heat exchange. At this time, the first air inlet 1212 is an air inlet, and the second air inlet 1222 is an air outlet.

When the refrigerating element heats, cold air at the bottom of the refrigerating chamber enters the second sub-grooves 1221 from the second air openings 1222, and is discharged to the top of the refrigerating chamber from the first air openings 1212 through the first sub-grooves 1211 after heat exchange. At this time, the first air inlet 1212 is an air outlet, and the second air inlet 1222 is an air inlet.

The arrangement of the first tuyere 1212 and the second tuyere 1222 can facilitate the air to enter each first sub-groove 1211 or each second sub-groove 1221, and heat exchange is realized in each first sub-groove 1211 or each second sub-groove 1221, thereby improving the efficiency of heat exchange.

Referring to fig. 2, 3 and 6, in some embodiments, the heat exchange portion 22 includes at least two first sub-portions 221 and/or at least two second sub-portions 222, each first sub-portion 221 is disposed in each first sub-tank 1211 in a one-to-one correspondence manner, and/or each second sub-portion 222 is disposed in each second sub-tank 1221 in a one-to-one correspondence manner.

When the air enters each first sub-tank 1211 or each second sub-tank 1221, each first sub-portion 221 and each second sub-portion 222 can be in sufficient contact with the air, so that the air can be sufficiently heat-exchanged, and the temperature of the air can be rapidly adjusted.

Specifically, each of the first sub-portion 221 and the second sub-portion 222 is configured as a heat dissipation fin, and the shape thereof matches with the shape of the corresponding first sub-groove 1211 or second sub-groove 1221, so as to better accommodate each of the first sub-portion 221 and the second sub-portion 222 in the corresponding first sub-groove 1211 and second sub-groove 1221.

In some embodiments, the fan 30 has first and second opposite rotational directions. When the fan 30 rotates in the first rotational direction, air is guided from the first groove group 121 to the second groove group 122. When the fan 30 rotates in the second rotational direction, air is guided from the second groove group 122 to the first groove group 121.

When the fan 30 is rotated in different directions, the air may be directed in different directions. Specifically, when the cooling member performs a cooling operation, the fan 30 rotates in a first rotational direction. At this time, the fan 30 sucks the hot air at the top of the refrigerating compartment from the first tuyere 1212 and discharges the hot air from the second tuyere 1222 to the bottom of the refrigerating compartment. In the process, the hot air and the radiating fins fully exchange heat, so that the temperature of the hot air is reduced, and refrigeration is realized.

When the cooling member performs a heating operation, the fan 30 rotates in the second rotation direction. At this time, the fan 30 sucks cool air of the bottom of the refrigerating compartment from the second tuyere 1222 and discharges the cool air to the top of the refrigerating compartment from the first tuyere 1212. In the process, the cold air and the radiating fins fully exchange heat, so that the temperature of the cold air is increased, and heating is realized.

As shown in fig. 7, in order to make the fan 30 guide the air in two opposite directions, each blade on the fan 30 is twisted and formed with its center point as a fixed point and two ends in opposite directions, so that each blade forms a curved surface with the same angle. Thus, when all the blades rotate clockwise or counterclockwise respectively, two opposite air flows can be generated.

In the above structure, the fan 30 is controlled to rotate along the first rotation direction and the second rotation direction respectively, so that the air in the target environment can flow according to a specified path, and the air is fully subjected to heat exchange with the heat exchange assembly 20, thereby improving the heat exchange efficiency.

In some embodiments, the fan 30 is configured as a centrifugal fan. Therefore, when the centrifugal fan rotates along different directions, the air in the target environment can flow from top to bottom or from bottom to top, and the heat exchange of the air is smoothly realized.

Referring to fig. 2 again, in some embodiments, a drainage hole 13 is further formed through the main body 10, and the drainage hole 13 is communicated with an end of the second groove group 122 away from the mounting hole 11.

Specifically, the first groove group 121 and the second groove group 122 are respectively disposed on two sides of the mounting hole 11 along the vertical direction, that is, the first groove group 121 is located above the mounting hole 11, and the second groove group 122 is located below the mounting hole 11. Therefore, the water discharge hole 13 is opened at an end of the second groove group 122 away from the mounting hole 11. The drain hole 13 may be connected to an external water pipe and may be used to drain the defrost water in the second tank group 122 during the heat exchange.

It will be appreciated that the drain hole 13 opens below the mounting hole 11 for ease of drainage. Therefore, when the first groove group 121 is located below the mounting hole 11, the drain hole 13 communicates with the first groove group 121. The purpose of this is to enable the defrosting water in the accommodating groove 12 to be discharged through the drainage hole 13 smoothly, so the specific position of the drainage hole 13 can be adjusted accordingly according to the actual positions of the first tank group 121 and the second tank group 122, which is not described herein.

Referring again to fig. 6, in some embodiments, the second end surface 212 of the connecting portion 21 is provided with a groove 213 for accommodating the cooling member. In order to facilitate the stable connection between the refrigeration member and the connection portion 21, a groove 213 may be formed on the second end surface 212 of the connection portion 21, and an inner contour of the groove 213 is matched with an outer contour of the refrigeration member, so that the refrigeration member can be stably accommodated in the groove 213.

Further, when the refrigeration piece is accommodated in the groove 213, the contact area between the refrigeration piece and the connecting portion 21 can be increased, so that the efficiency of transferring heat from the refrigeration piece to the connecting portion 21 is further improved, and the heat exchange efficiency is improved.

In some embodiments, the refrigeration member is configured as an electronic refrigeration pill. Therefore, two temperature control states of cooling and heating can be realized. In addition, the electronic refrigeration piece can realize high-precision temperature control, so that the temperature of the refrigerating chamber can be accurately controlled.

As shown in fig. 1, based on the same concept as the air duct structure 100, the present application provides a refrigeration device 1000, which includes a refrigerating chamber (not shown in the figure) and an air duct structure 100 disposed in the refrigerating chamber, where the air duct structure 100 is the air duct structure 100, and one side of the main body 10, where the accommodating groove 12 is disposed, is disposed toward the refrigerating chamber.

In some embodiments, the refrigeration unit 1000 includes an evaporator 200, and the side of the refrigeration member facing away from the second end face 212 is coupled to the evaporator 200.

Specifically, one side of the refrigeration element is connected to the connection portion 21 of the heat exchange assembly 20, and the other end of the refrigeration element is connected to a branch copper pipe of the refrigerant at the outlet of the evaporator 200. Therefore, the temperature of the refrigerating chamber can be regulated and controlled by utilizing the branch refrigerant of the evaporator 200.

In some embodiments, the cooling device 1000 includes a freezing chamber (not shown) and a freezing air duct (not shown), which communicates the freezing chamber and the refrigerating chamber, and is connected to the air duct structure 100. The freezing air duct is used for refrigerating the freezing chamber and guiding cold air in the freezing chamber into the refrigerating chamber.

Specifically, the freezing air duct is an original refrigeration system of the refrigeration apparatus 1000, and the temperature of the freezing chamber can be regulated and controlled through the freezing air duct. In addition, the freezing air duct includes a damper provided between the freezing chamber and the refrigerating chamber. The air door is opened, so that cold air in the freezing chamber can be introduced into the refrigerating chamber, and the refrigerating chamber can be rapidly cooled to a large extent.

The freezing wind channel can realize the temperature regulation and control on a large scale of the refrigerating chamber, so that the temperature in the refrigerating chamber approaches to the preset temperature, then the air door between the freezing chamber and the refrigerating chamber is closed, the refrigerating chamber is further subjected to temperature regulation and control on a small scale through the wind channel structure 100, and the accuracy of the temperature regulation and control in the refrigerating chamber can be effectively improved.

In some embodiments, the cooling device 1000 includes a detection assembly (not shown) and a control assembly (not shown) that are communicatively coupled to detect the current temperature within the refrigeration compartment. When the difference value between the current temperature and the preset temperature is out of the preset range, the control assembly controls the freezing air duct to guide cold air in the freezing chamber into the refrigerating chamber. When the difference between the current temperature and the preset temperature is within the preset range, the control assembly opens the air duct structure 100.

Particularly, the detection assembly can detect the current temperature in the refrigerating chamber in real time and quickly respond through the control assembly, so that the control precision of the refrigerating chamber is improved.

Generally, the refrigerating compartment has a preset temperature, and the process of regulating the temperature of the refrigerating compartment is actually a process of regulating the current temperature of the refrigerating compartment to be equal to the preset temperature.

It should be noted that the preset temperature is a specific value, however, the current temperature in the refrigerating chamber is easily affected by various external factors to generate a certain fluctuation. For example, when the door of the refrigerated compartment is opened, the current temperature in the refrigerated compartment will be briefly affected, and after a period of adjustment after the door is closed, the current temperature may return to steady.

Based on the above, in order to avoid frequent start and stop of the air duct structure 100 or other refrigeration systems, a certain preset range is usually set. The preset range usually fluctuates up and down by a certain range with the preset temperature as a midpoint.

When the difference value between the current temperature in the refrigerating chamber and the preset temperature exceeds the preset range, the temperature range required to be regulated and controlled by the refrigerating chamber is larger. In this case, in order to improve the conditioning efficiency, the damper between the freezing chamber and the refrigerating chamber is opened, and the cold air in the freezing chamber is introduced into the refrigerating chamber through the freezing air duct. Thereby, the current temperature of the refrigerating chamber is rapidly changed to be within a preset range.

When the difference value between the current temperature in the refrigerating chamber and the preset temperature is within the preset range, the air door between the freezing chamber and the refrigerating chamber can be closed, the air duct structure 100 is opened, and the small-range accurate temperature control is carried out on the refrigerating chamber through the air duct structure 100.

When the refrigerating device 1000 is used for controlling the temperature of the refrigerating chamber, the following refrigerating chamber temperature control method can be adopted for operation, and the refrigerating chamber temperature control method comprises the following steps:

acquiring the current temperature in the refrigerating chamber;

comparing the current temperature with a preset temperature and obtaining the difference value of the current temperature and the preset temperature;

when the difference value is out of the preset range, the air duct structure 100 is closed, and an air door between the freezing chamber and the refrigerating chamber is opened;

when the difference value is within the preset range, the air duct structure 100 is opened, and the air door between the freezing chamber and the refrigerating chamber is closed.

And when the difference value between the current temperature in the refrigerating chamber and the preset temperature exceeds the preset range, the temperature range required to be regulated and controlled by the refrigerating chamber is larger. In this case, in order to improve the conditioning efficiency, the damper between the freezing chamber and the refrigerating chamber is opened, and the cold air in the freezing chamber is introduced into the refrigerating chamber through the freezing air duct. Therefore, the current temperature of the refrigerating chamber is rapidly changed to be within a preset range.

Therefore, on the one hand, the current temperature in the refrigerating chamber can be quickly regulated to the preset temperature, and the regulation efficiency is improved. On the other hand, the air duct structure 100 is adopted to accurately regulate and control the refrigerating chamber in a small range, so that the accuracy of regulating and controlling the temperature of the refrigerating chamber can be improved, and the problem of uneven distribution of the upper temperature and the lower temperature of the refrigerating chamber is effectively solved.

In some embodiments, when the difference value is within a preset range, the step of opening the air duct structure 100 and closing the damper between the freezer compartment and the refrigerator compartment specifically includes:

when the current temperature is higher than the preset temperature, the refrigerating element is controlled to perform the refrigerating operation, and meanwhile, the fan 30 is controlled to rotate along the first rotating direction, so that the air in the refrigerating chamber enters the first slot group 121 from the top, passes through the heat exchange assembly 20 and is discharged to the bottom of the refrigerating chamber from the second slot group 122.

Specifically, the detection component detects the current temperature in the refrigerating chamber in real time. When the current temperature is detected to be higher than the preset temperature, the temperature in the refrigerating chamber is too high, and the refrigerating operation is required.

At this time, the refrigerating member may be controlled by the control assembly to perform a refrigerating operation. The fan 30 rotates in the first rotation direction, sucks the hot air at the top of the refrigerating compartment into the first slot group 121 through the first air opening 1212, and discharges the hot air to the bottom of the refrigerating compartment through the second air opening 1222. In this process, the hot air exchanges heat with the heat exchange assembly 20, so that the temperature of the hot air is reduced and the hot air is discharged to the bottom of the refrigerating chamber, thereby realizing the cooling of the refrigerating chamber.

In some embodiments, during the cooling operation, the timing assembly may perform continuous cooling timing, calculate a cooling time, and close the air duct structure 100 and heat the air duct structure for a second predetermined time when the cooling time is greater than a first predetermined time.

Through the steps, the phenomenon that the temperature of the refrigerating chamber is too low due to too long continuous refrigerating time of the refrigerating chamber can be avoided, and therefore the temperature of the refrigerating chamber can be maintained in a certain stable state.

Specifically, the first preset time and the second preset time can be adjusted according to actual requirements. In a specific embodiment, the first preset time may be set to thirty minutes, and the second preset time may be set to one minute. Namely, when the refrigeration time is longer than thirty minutes, the air duct structure 100 is closed, and the full-power heating is performed for one minute, so that the temperature in the refrigerating chamber is prevented from being too low.

In some embodiments, when the difference value is within a preset range, the opening the air duct structure 100 and the closing the damper between the freezing chamber and the refrigerating chamber specifically include:

when the current temperature is lower than the preset temperature, the refrigerating element is controlled to perform the heating operation, and the fan 30 is controlled to rotate along a second rotation direction opposite to the first rotation direction, so that the air in the refrigerating chamber enters the second slot group 122 from the bottom, passes through the heat exchange assembly 20 and is discharged from the first slot group 121 to the top of the refrigerating chamber.

Specifically, the detection component detects the current temperature in the refrigerating chamber in real time. When the current temperature is detected to be lower than the preset temperature, the temperature in the refrigerating chamber is too low, and heating operation is required.

At this time, the refrigerating member may be controlled by the control assembly to perform a heating operation. The fan 30 rotates in the second rotating direction, and sucks the cool air in the bottom of the refrigerating compartment into the second slot group 122 through the second air opening 1222 and discharges the cool air to the top of the refrigerating compartment through the first air opening 1212. In this process, the cold air exchanges heat with the heat exchange assembly 20, so that the temperature of the cold air is raised and discharged to the bottom of the refrigerating chamber, thereby realizing the temperature rise of the refrigerating chamber.

In some embodiments, the refrigerator compartment temperature control method further comprises:

judging whether the current temperature is less than zero, and when the current temperature is less than zero, closing an air door between the freezing chamber and the refrigerating chamber, opening the air duct structure 100, controlling the refrigerating element to execute heating operation, and simultaneously controlling the fan 30 to rotate along a second rotation direction opposite to the first rotation direction, so that air in the refrigerating chamber enters the second groove group 122 from the bottom, passes through the heat exchange assembly 20 and then is discharged from the first groove group 121 to the top of the refrigerating chamber.

The above process is mainly used for zero-crossing protection of the temperature in the refrigerating chamber, namely, the current temperature in the refrigerating chamber is prevented from being too low and lower than zero.

Specifically, the detection component detects the current temperature in the refrigerating chamber. When the detected current temperature is less than zero degree, the control assembly controls the refrigerating piece to execute heating operation. The fan 30 rotates in the second rotating direction, and sucks the cool air in the bottom of the refrigerating compartment into the second slot group 122 through the second air opening 1222 and discharges the cool air to the top of the refrigerating compartment through the first air opening 1212. In this process, the cold air exchanges heat with the heat exchange assembly 20, so that the temperature of the cold air is raised and discharged to the bottom of the refrigerating chamber, thereby realizing the temperature rise of the refrigerating chamber.

Therefore, zero-crossing protection can be carried out on the temperature in the refrigerating chamber, and the phenomenon that articles stored in the refrigerating chamber are damaged due to the fact that the temperature of the refrigerating chamber is too low is avoided.

When the temperature control device is used specifically, the current temperature of the refrigerating chamber is compared with the preset temperature at first, and the difference value of the current temperature and the preset temperature is obtained. When the difference value is out of the preset range and the temperature of the refrigerating chamber is too high, the temperature in the refrigerating chamber does not enter a stable state, and the difference value between the current temperature in the refrigerating chamber and the preset temperature is large. At this time, in order to quickly adjust the current temperature in the refrigerating chamber to a preset range, a freezing air duct can be adopted to adjust and control the temperature in the refrigerating chamber. Namely, an air door between the freezing chamber and the refrigerating chamber is opened, and cold air in the freezing chamber is guided into the refrigerating chamber through a freezing air channel, so that the rapid cooling in the refrigerating chamber is realized.

The detection assembly detects the temperature in the refrigerating chamber in real time, and when the difference value is within a preset range, the temperature in the refrigerating chamber enters a stable state. At this time, the air door between the freezing chamber and the refrigerating chamber is closed, and the air duct structure 100 is opened to control the temperature of the refrigerating chamber.

In the process, when the current temperature is higher than the preset temperature, the control assembly controls the refrigerating piece to execute the refrigerating operation. The fan 30 rotates in the first rotation direction, sucks the hot air at the top of the refrigerating compartment into the first slot group 121 through the first air opening 1212, and discharges the hot air to the bottom of the refrigerating compartment through the second air opening 1222. In this process, the hot air exchanges heat with the heat exchange assembly 20, so that the temperature of the hot air is reduced and the hot air is discharged to the bottom of the refrigerating chamber, thereby realizing the cooling of the refrigerating chamber.

Meanwhile, the timing assembly performs continuous refrigeration timing and calculates the refrigeration time, and when the refrigeration time is greater than the first preset time, the control assembly closes the air duct structure 100 and heats the second preset time, so that the temperature in the refrigerating chamber is prevented from being too low.

When the current temperature is lower than the preset temperature, the control assembly controls the refrigerating piece to execute heating operation. The fan 30 rotates in the second rotating direction, and sucks the cool air in the bottom of the refrigerating compartment into the second slot group 122 through the second air opening 1222 and discharges the cool air to the top of the refrigerating compartment through the first air opening 1212. In this process, the cold air exchanges heat with the heat exchange assembly 20, so that the temperature of the cold air is raised and discharged to the bottom of the refrigerating chamber, thereby realizing the temperature rise of the refrigerating chamber.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An air duct structure for a refrigerating chamber, comprising:

the main body (10) is provided with a mounting hole (11) in a penetrating way and is provided with a containing groove (12) communicated with the mounting hole (11);

the heat exchange assembly (20) comprises a connecting part (21) and a heat exchange part (22) which are connected with each other, the connecting part (21) is arranged in the mounting hole (11) and is provided with a first end surface (211) close to the accommodating groove (12) and a second end surface (212) far away from the accommodating groove (12), and the heat exchange part (22) is accommodated in the accommodating groove (12);

a fan (30) rotatably mounted to the first end surface (211) of the connecting portion (21); and

the refrigerating piece is mounted on the second end face (212) of the connecting portion (21).

2. The air duct structure according to claim 1, wherein the accommodating groove (12) comprises a first groove group (121) and a second groove group (122) both communicating with the mounting hole (11), the first groove group (121) and the second groove group (122) being respectively located on opposite sides of the mounting hole (11) along the first direction (a).

3. The air duct structure according to claim 2, characterized in that the first slot group (121) comprises at least two first sub slots (1211) each communicating with the mounting hole (11); and/or the second slot group (122) comprises at least two second sub slots (1221) each communicating with the mounting hole (11).

4. The air duct structure according to claim 3, wherein an end of each of the first sub-slots (1211) facing away from the mounting hole (11) is formed with a first tuyere (1212); and/or one end of each second subslot (1221) facing away from the mounting hole (11) is provided with a second air opening (1222).

5. The air duct structure according to claim 3, wherein the heat exchanging portion (22) comprises at least two first sub-portions (221) and/or at least two second sub-portions (222), each of the first sub-portions (221) is disposed in each of the first sub-grooves (1211) in a one-to-one correspondence, and/or each of the second sub-portions (222) is disposed in each of the second sub-grooves (1221) in a one-to-one correspondence.

6. The air duct structure according to claim 2, wherein the fan (30) has a first rotational direction and a second rotational direction opposite to each other, and when the fan (30) rotates in the first rotational direction, air is guided from the first slot group (121) to the second slot group (122); when the fan (30) is rotated in the second rotational direction, air is directed from the second slot group (122) to the first slot group (121).

7. The air duct structure according to claim 6, characterized in that the fan (30) is configured as a centrifugal fan.

8. The air duct structure according to claim 2, characterized in that a drain hole (13) is further formed through the main body (10), and the drain hole (13) is communicated with one end of the second slot group (122) away from the mounting hole (11).

9. The air duct structure according to claim 1, characterized in that the second end face (212) of the connecting portion (21) is provided with a groove (213) for accommodating the refrigerating member.

10. The air duct structure according to claim 1, characterized in that the heat exchanging portion (22) is configured as a heat radiating fin.

11. The air duct structure according to claim 1, wherein the cooling member is configured as an electronic cooling sheet.

12. A refrigerating device, characterized by comprising a refrigerating chamber and an air duct structure (100) arranged in the refrigerating chamber, wherein the air duct structure (100) is the air duct structure (100) according to any one of claims 1 to 11, and one side of the main body (10) provided with the accommodating groove (12) is arranged towards the refrigerating chamber.

13. A cold appliance according to claim 12, wherein the cold appliance (1000) comprises an evaporator (200), wherein the side of the cold element facing away from the second end face (212) is connected to the evaporator (200).

14. A refrigerating device as recited in claim 12, wherein said refrigerating device (1000) comprises a freezing chamber and a freezing air duct, said freezing air duct communicates said freezing chamber with said refrigerating chamber and is connected to said air duct structure (100), said freezing air duct is configured to refrigerate said freezing chamber and to guide cold air in said freezing chamber into said refrigerating chamber.

15. A cold appliance according to claim 14, wherein the cold appliance (1000) comprises a detection assembly and a control assembly communicatively connected, the detection assembly being adapted to detect a current temperature in the cold compartment;

when the difference value between the current temperature and the preset temperature is out of a preset range, the control assembly controls the freezing air channel to guide the cold air in the freezing chamber into the refrigerating chamber;

and when the difference value between the current temperature and the preset temperature is within the preset range, the control component opens the air duct structure (100).