CN220871218U - Air-cooled refrigerator - Google Patents

Abstract

The embodiment of the application belongs to the household appliance technology, and provides an air-cooled refrigerator, which comprises: a case; the box body is provided with a containing cavity, and an opening is arranged at one side of the box body along the thickness direction; an air duct structure; the air duct structure is positioned in the box body and is provided with an air outlet; the surface light source assembly is connected with the air duct structure and is positioned at one side of the air duct structure facing the opening, and the light emergent surface of the surface light source assembly faces the opening; the photocatalyst coating is arranged on the light-emitting surface, and the air-emitting direction of at least one air outlet faces the photocatalyst coating. The application can improve the efficiency of sterilization and smell removal.

Description

Air-cooled refrigerator

Technical Field

The embodiment of the application relates to the technical field of household appliances, in particular to an air-cooled refrigerator.

Background

With the continuous development of science and technology, the living standard of people is continuously improved, and more families purchase refrigerators to keep foods to be stored fresh. The air-cooled refrigerator has the advantages of good fresh-keeping effect, quick refrigeration, environmental protection and the like, and the market share of the air-cooled refrigerator is larger and larger.

In the related art, the refrigerator comprises a purifying device arranged in the refrigerator body, the purifying device comprises a light component and a photocatalyst layer, and the photocatalyst layer is coated on the light component. The light component acts on the photocatalyst component to excite the photocatalyst component to fully generate electron hole pairs, the electron hole pairs generated by the photocatalyst component have extremely strong capability of competing for electrons, and bacteria and peculiar smell molecules in the air can perform oxidation reaction with the electron hole pairs, so that the bacteria die, the peculiar smell molecules are degraded, and finally harmless substances such as carbon dioxide, water and the like are generated. Oxygen and water in the air are deprived of electrons by electron hole pairs to generate hydroxyl free radicals, oxygen free radicals and other ROS (reactive oxygen species ) reactive substances, and the ROS reactive substances not only react with bacteria and odor molecules in the air, but also flow to various positions of the refrigerator to react with bacteria on the surface of food materials, so that the bacteria are killed, and the safety of the food materials is ensured.

However, such refrigerators have low sterilizing and deodorizing efficiency.

Disclosure of utility model

The embodiment of the application provides an air-cooled refrigerator, which can improve the efficiency of sterilization and smell removal.

In a first aspect, an embodiment of the present application provides an air-cooled refrigerator, including:

A case; the box body is provided with a containing cavity, and an opening is arranged at one side of the box body along the thickness direction;

an air duct structure; the air duct structure is positioned in the box body and is provided with an air outlet;

The surface light source assembly is connected with the air duct structure and is positioned at one side of the air duct structure facing the opening, and the light emergent surface of the surface light source assembly faces the opening;

The photocatalyst coating is arranged on the light-emitting surface, and the air-emitting direction of at least one air outlet faces the photocatalyst coating.

According to the refrigerator provided by the application, the air duct structure, the surface light source component and the photocatalyst coating are arranged, the air duct structure is used for realizing circulation of cold and hot air in the storage chamber of the refrigerator body, and the air outlet direction of at least one air outlet of the air duct structure is configured to face the photocatalyst coating, so that the flow of ROS (reactive oxygen species) active substances can be accelerated, the ROS active substances can be conveyed to various positions of the refrigerator, and are reacted with bacteria on the surface of food materials, and therefore, the purification efficiency is improved by accelerating the circulation of air.

In some embodiments of the present application, the duct structure includes:

A blower;

The air duct component is located the fan and is followed the top of the length direction of box, and air duct component has the air intake along the bottom of length direction, and the position that the air duct component is close to the top along length direction is provided with the air outlet, and the air outlet direction of air outlet is towards photocatalyst coating, and air duct component is provided with the side air outlet along the both sides of the width direction of box.

Therefore, the efficiency of sterilization and smell removal and the cooling speed can be improved.

In some embodiments of the present application, the number of the upper air outlets is a plurality, and the plurality of upper air outlets includes a first upper air outlet and a second upper air outlet, and an included angle is formed between an orientation of the first upper air outlet and an orientation of the second upper air outlet.

Therefore, compared with a parallel air outlet mode in which the directions of the upper air outlet are parallel, the inclined air outlet can enhance air convection on the premise of not changing the total air quantity and the air speed, turbulent flow is carried out on a nearby area, the air speed in a unit area is increased, and the sterilization and odor removal efficiency is improved.

In some embodiments of the present application, the density of the photocatalyst coating near the air outlet is greater than the density of the photocatalyst coating far from the air outlet.

Therefore, the sterilizing and deodorizing efficiency of the refrigerator can be improved, and the cost of the photocatalyst coating in the refrigerator can be reduced.

In some embodiments of the present application, the thickness of the photocatalyst coating near the air outlet is greater than the thickness of the photocatalyst coating far from the air outlet.

Thus, the convenience of the photocatalyst coating processing operation is high.

The photocatalyst coating comprises a base layer and a photocatalyst doped in the base layer, wherein the weight of the photocatalyst in the photocatalyst coating close to the air outlet is larger than that of the photocatalyst in the photocatalyst coating far from the air outlet; the weight of the photocatalyst is the ratio of the weight of the photocatalyst to the weight of the base layer per unit area.

Thus, the photocatalyst coating is planar, which is beneficial to improving the aesthetic degree.

In some embodiments of the present application, the photocatalyst coating includes a first density portion, a second density portion and a third density portion, wherein the first density portion is close to the top of the surface light source assembly along the length direction, the second density portion is located at two sides of the first density portion along the width direction, and the third density portion is located at the bottom of the first density portion along the length direction;

The density of the photocatalyst coating in the first density part is greater than that in the second density part, and the density of the photocatalyst coating in the second density part is greater than that in the third density part.

Therefore, the cost can be saved, and the sterilization and odor removal efficiency can be improved.

In some embodiments of the application, the duct assembly includes:

The air duct foam layer is connected with the box body, and a first flow channel for air to flow is formed between the air duct foam layer and the box body;

An air duct cover plate; the air duct cover plate is positioned on one side of the air duct foam layer facing the opening, covers two sides of the air duct foam layer along the width direction, and is provided with side air outlets along two sides of the air duct cover plate along the width direction, and the side air outlets are communicated with the first flow channel; the air duct cover plate is provided with a communication port at a position close to the top along the length direction, and the communication port is communicated with the first flow channel; the surface light source component is arranged on one side of the air duct cover plate, which is away from the air duct foam layer;

An air duct outer cover; the air duct outer cover is covered on the top of the air duct cover plate along the length direction, a second flow channel for air to flow is formed between the air duct outer cover and the air duct cover plate, the second flow channel is communicated with the communication port, an upper air outlet is formed in the bottom of the air duct outer cover along the length direction, and the second flow channel is communicated with the upper air outlet.

Therefore, the hidden design of the upper air outlet and the side air outlet has small influence on the appearance of the air duct assembly, and is beneficial to improving the attractiveness.

In some embodiments of the present application, the surface light source assembly includes a first light bar and a light plate structure, wherein the first light bar is disposed at a top of the light plate structure along a length direction and is close to the upper air outlet.

Thus, the heat dissipation of the first lamp strip is facilitated, and the service life of the surface light source assembly is prolonged.

In some embodiments of the present application, the air duct cover is a light-transmitting air duct cover, and the second light bar is disposed in the second flow channel.

Thus, the second light bar can be used for decoration, which is beneficial to improving user experience.

In a second aspect, an embodiment of the present application provides an air-cooled refrigerator, including: the device comprises a box body, an air duct structure, a surface light source component and a photocatalyst coating; the air duct structure is arranged in the box body, the surface light source component is connected with the air duct structure, the photocatalyst coating is arranged on the light emitting surface of the surface light source component, and the air outlet direction of at least one air outlet of the air duct structure is arranged towards the photocatalyst coating.

According to the refrigerator provided by the application, the air duct structure, the surface light source component and the photocatalyst coating are arranged, the air duct structure is used for realizing circulation of cold and hot air in the storage chamber of the refrigerator body, and the air outlet direction of at least one air outlet of the air duct structure is configured to face the photocatalyst coating, so that the flow of ROS (reactive oxygen species) active substances can be accelerated, the ROS active substances can be conveyed to various positions of the refrigerator, and are reacted with bacteria on the surface of food materials, and therefore, the purification efficiency is improved by accelerating the circulation of air.

Drawings

In order to more clearly illustrate the embodiments of the present application or the implementation of the related art, the drawings that are required for the embodiments or the related art description will be briefly described, and it is apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic structural diagram of an air-cooled refrigerator according to an embodiment of the present application;

Fig. 2 is a schematic structural diagram of an air-cooled refrigerator with a door removed according to an embodiment of the present application;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic structural diagram of an air duct assembly and a surface light source assembly in an air-cooled refrigerator according to an embodiment of the present application;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a front view of FIG. 4;

FIG. 7 is a cross-sectional view taken along the direction A-A in FIG. 6;

FIG. 8 is an enlarged view of a portion of FIG. 7 at B;

FIG. 9 is a rear view of FIG. 6;

FIG. 10 is a schematic view of the channel assembly and the area light source assembly of FIG. 4 at another angle;

FIG. 11 is an enlarged view of a portion of FIG. 10 at C;

FIG. 12 is a first air outlet direction of an upper air outlet in an air-cooled refrigerator according to an embodiment of the present application;

FIG. 13 is a second air outlet direction of an upper air outlet in an air-cooled refrigerator according to an embodiment of the present application;

FIG. 14 is a schematic view of a photocatalyst coating in an air-cooled refrigerator according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of an air duct foam layer in an air-cooled refrigerator according to an embodiment of the present application;

FIG. 16 is a schematic view of a cover plate of an air duct in an air-cooled refrigerator according to an embodiment of the present application;

FIG. 17 is a schematic view of another angle of the duct cover of FIG. 16;

fig. 18 is a schematic structural diagram of an air duct cover in an air-cooled refrigerator according to an embodiment of the present application.

Reference numerals illustrate:

100-box body; 110-a housing; 120-inner container;

200-an air duct structure; 210-an air duct assembly; 211-upper air outlet; 212-a side air outlet; 213-an air duct foam layer; 214-an air duct cover plate; 2141—a communication port; 2142—a first connection; 2143-a third connection; 215-an air duct cover; 2151-a second connection; 2152-an abutment; 216-a first flow channel; 217-second flow channel;

300-a degerming and fresh-keeping system; 310-a surface light source assembly; 311-light-emitting surface; 320-photocatalyst coating; 321-a first density portion; 322-second density portion; 323-third density portion;

400-door body.

Detailed Description

As described in the background art, ROS reactive substances such as hydroxyl radicals and oxygen radicals generated by the purifying device flow to each position of the refrigerator in a free diffusion manner, and the efficiency of the flowing circulation is low, so that the efficiency of sterilizing and deodorizing the refrigerator is low.

In order to solve the technical problems, in the refrigerator provided by the application, the air duct structure, the surface light source component and the photocatalyst coating are arranged, the air duct structure is used for realizing circulation of cold and hot air in a storage chamber of the refrigerator body, and the air outlet direction of at least one air outlet of the air duct structure is configured to face the photocatalyst coating, so that the flow of ROS active substances can be accelerated, the ROS active substances can be conveyed to various positions of the refrigerator, and the ROS active substances react with bacteria on the surface of food materials, so that the circulation flow of air can be accelerated through the air duct structure, and the purification efficiency is improved.

Further, because the wind speed at the air outlet is higher, the air flow rate in unit time is larger, and the wind speed at the position far away from the air outlet is lower, and the air flow rate in unit time is lower. Therefore, in order to improve the efficiency of sterilizing and deodorizing the refrigerator and reduce the cost of the photocatalyst coating in the refrigerator, the density of the photocatalyst coating close to the air outlet is higher than that of the photocatalyst coating far from the air outlet.

For the purposes of making the objects, embodiments and advantages of the present application more apparent, an exemplary embodiment of the present application will be described more fully hereinafter with reference to the accompanying drawings in which exemplary embodiments of the application are shown, it being understood that the exemplary embodiments described are merely some, but not all, of the examples of the application.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1 to 7, the present embodiment provides an air-cooled refrigerator, which includes a cabinet 100, an air duct structure 200, a refrigerating system (not shown), a sterilizing and refreshing system 300, and a door 400.

The case 100 includes a housing 110 and a liner 120. The inner container 120 is located in the housing 110, and the inner container 120 has a receiving cavity, where the receiving cavity may include a storage chamber and a cold source chamber. Wherein, one side of the inner container 120 facing away from the door 400 in the thickness direction is configured with the housing 110 to form a press bin. Wherein the inner container 120 is opened toward one side of the door 400 in the thickness direction. The thickness direction is the direction shown by the Y-axis in the figure.

Wherein, the storing room can be at least one, and when the quantity of storing rooms is one, the storing room can be any one of a refrigerating room, a freezing room or a temperature changing room. When the number of storage compartments is two or more, the plurality of storage compartments may include at least one or more of a refrigerating compartment, a freezing compartment, or a temperature changing compartment. The aseptic deodorizing assembly may be located in at least one of the refrigerator compartment, the freezer compartment, or the variable temperature compartment.

Wherein, cold source cavity and storing room are through wind channel structure 200 intercommunication, and wind channel structure 200 has the air outlet, and the fan of wind channel structure 200 sets up in the cold source cavity, and the during operation of fan, the air circulation flow in cold source cavity and the storing room.

In the implementation mode that the storage chambers are multiple, the air channels can also be multiple, and each storage chamber is communicated with the cold source chamber through the corresponding air channel. It should be noted that, a fan may be shared in the partial duct structure 200. That is, fans may not be included in the partial duct structure 200.

The openable cover of the door 400 is disposed on the front side of the case 100 to close and open the storage chamber, and take and place articles in the storage chamber. It should be noted that the number of the door bodies 400 may be one, two or more.

The refrigerating system can comprise a compressor, a condenser, a throttling device and an evaporator, wherein the compressor, the condenser, the throttling device and the evaporator are sequentially connected in series through pipelines, and refrigerant flows in the pipelines. The compressor and the condenser can be arranged in the machine cabin, and the evaporator is arranged in the cold source cavity.

When the compressor works, low-temperature and low-pressure refrigerant is sucked by the compressor, compressed into high-temperature and high-pressure superheated gas in the compressor cylinder and discharged to the condenser. The high-temperature and high-pressure refrigerant gas is radiated by the condenser, the temperature is continuously reduced, the refrigerant gas is gradually cooled into normal-temperature and high-pressure saturated vapor, the saturated vapor is further cooled into saturated liquid, and the pressure of the refrigerant is almost unchanged in the whole condensation process. The throttling device can comprise a decompression tube or an electronic expansion valve, and the throttling device is described by taking the decompression tube as an example, and the decompression tube is low in cost and not prone to abnormal faults. The condensed refrigerant saturated liquid is throttled and depressurized through a decompression tube, and the refrigerant becomes normal-temperature and low-pressure wet vapor. After that, the wet vapor at normal temperature and low pressure absorbs heat by the evaporator and evaporates, thereby not only lowering the temperature of the evaporator and its surroundings, but also changing the refrigerant into a low-temperature and low-pressure gas. The evaporator is used for refrigerating the air in the cold source cavity so as to reduce the temperature of the air in the cold source cavity, and the cold air in the cold source cavity flows into the storage chamber through the air duct under the action of the fan so as to reduce the temperature of the storage chamber. The refrigerant from the evaporator returns to the compressor again, and the above process is repeated, so that the evaporator can continuously refrigerate the air in the cold source chamber, and the storage chamber can be maintained at a set temperature.

Further, the refrigeration system may further include a dry filter connected between the condenser and the throttling device through a pipe, and the dry filter may remove moisture and impurities from the refrigerant.

In an embodiment of the present application, the sterilization and preservation system 300 includes: a surface light source assembly 310 and a photocatalyst coating 320. Wherein the duct structure 200 is configured to be located within the cabinet 100. The surface light source assembly 310 is configured to be connected with the duct structure 200. The photocatalyst coating 320 is configured to be disposed on the light-emitting surface 311 of the surface light source assembly 310, and at least a part of the air-emitting direction of the air outlet of the air duct structure 200 is configured to face the photocatalyst coating 320.

Wherein the surface light source assembly 310 can perform the functions of illumination and fresh keeping. Specifically, the surface light source assembly 310 is located in the case 100, and the surface light source assembly 310 is connected with the air duct structure 200. For example, the surface light source assembly 310 may be located within a refrigerator compartment or a freezer compartment. For example, the fresh keeping function of the surface light source assembly 310 is mainly the application of light of different wavelengths. It should be noted that, the surface light source assembly 310 may be connected to the air duct structure 200 by an adhesive or a clamping connection.

Specifically, the surface light source assembly 310 may be located at a side of the air duct structure 200 facing the opening, and the light emitting surface 311 of the surface light source assembly 310 faces the opening, so that the installation area of the surface light source assembly 310 is larger, and the light emitting surface 311 of the surface light source assembly 310 is larger, thereby improving the installation area of the photocatalyst coating 320 and the efficiency of sterilizing and deodorizing the refrigerator.

Or in some embodiments, the surface light source assembly 310 may be located at one side of the wind tunnel structure 200 in the width direction (direction shown by X-axis).

The photocatalyst coating 320 is disposed on the light emitting surface 311, and the air outlet direction of at least one air outlet faces the photocatalyst coating 320, so that the flow of ROS active substances can be accelerated, the ROS active substances can be conveyed to various positions of the refrigerator, and react with bacteria on the surface of the food material, so that the purification efficiency is improved by accelerating the circulation flow of air.

Referring to fig. 6 to 11, in some embodiments of the present application, the duct structure 200 includes: a fan (not shown) and a duct assembly 210.

Wherein, the air duct component 210 is located above the fan along the length direction of the box 100, the bottom of the air duct component 210 along the length direction is provided with an air inlet, the position of the air duct component 210 along the length direction near the top is provided with an upper air outlet 211, and the air outlet direction of the upper air outlet 211 faces the photocatalyst coating 320, thereby improving the efficiency of degerming and deodorizing in the storage room and the cooling speed.

Specifically, the air outlet direction of the upper air outlet 211 is parallel to the extending plane of the photocatalyst coating 320, that is, the air blows from the top to the bottom of the photocatalyst coating 320 along the length direction. The length direction is the direction shown by the Z axis in the figure

Wherein, the air duct assembly 210 is provided with side air outlets 212 along both sides of the width direction of the case 100. The side air outlet 212 is beneficial to improving the air circulation efficiency in the storage chamber, thereby improving the efficiency of sterilization and smell removal in the storage chamber and the cooling speed. The width direction is the direction shown by the X-axis in the figure.

Referring to fig. 9, the arrows in fig. 9 indicate that the path is an air path. That is, the air is introduced from the bottom and is branched into a plurality of branches, and then is discharged through the upper air outlet 211 and the side air outlet 212.

Referring to fig. 12, in some embodiments of the present application, in order to improve the efficiency of sterilization and smell removal and the cooling speed, the number of the upper air outlets 211 is plural, and the orientations of the upper air outlets 211 are parallel.

Referring to fig. 13, in some embodiments of the present application, the number of the upper air outlets 211 is plural, and the plurality of upper air outlets 211 includes a first upper air outlet and a second upper air outlet, and an included angle is formed between an orientation of the first upper air outlet and an orientation of the second upper air outlet.

It can be appreciated that, compared with the parallel air outlet mode parallel to the direction of the upper air outlet 211, the inclined air outlet can enhance air convection without changing the total air volume and air speed, and turbulent flow is performed on the nearby area, so that the air speed in the unit area is increased, and the reaction efficiency of the ROS active substances and the peculiar smell components is improved.

For example, blocking parts with inclined angles can be added at the first upper air outlet position and the second upper air outlet position, so that inclined air outlets of the first upper air outlet and the second upper air outlet are realized.

Referring to fig. 14, in some embodiments of the present application, the density of the photocatalyst coating 320 near the air outlet is greater than the density of the photocatalyst coating 320 far from the air outlet.

It can be appreciated that the air flow rate per unit time is higher due to the higher wind speed at the air outlet position, while the air flow rate per unit time is lower due to the lower wind speed at the air outlet position. Therefore, in order to improve the efficiency of sterilizing and deodorizing the refrigerator and reduce the cost of the photocatalyst coating 320 in the refrigerator, the density of the photocatalyst coating 320 near the air outlet may be greater than that of the photocatalyst coating 320 far from the air outlet.

In some embodiments of the present application, the thickness of the photocatalyst coating 320 near the air outlet is greater than the thickness of the photocatalyst coating 320 far from the air outlet.

Specifically, the same photocatalyst coating may be applied on the surface light source assembly 310 to form the photocatalyst coating 320. The thickness of the photocatalyst coating 320 near the air outlet is greater than that of the photocatalyst coating 320 far from the air outlet, so that the content of the photocatalyst in the photocatalyst coating 320 per unit area can be increased, and the density of the photocatalyst coating 320 can be increased. Thus, the photocatalyst coating 320 is one kind of paint, and the convenience of operation is high.

In other embodiments, the photocatalyst coating 320 is made planar for improved aesthetics. The photocatalyst coating 320 comprises a base layer and a photocatalyst doped in the base layer, wherein the weight of the photocatalyst in the photocatalyst coating 320 close to the air outlet is greater than that of the photocatalyst in the photocatalyst coating 320 far from the air outlet. Wherein the weight of the photocatalyst is the ratio of the weight of the photocatalyst to the weight of the base layer in the unit area.

Illustratively, the base layer may be a resin base layer, the photocatalyst may be nano titanium dioxide, or nano noble metal, etc. That is, the mixing ratio of the resin and the nano titanium oxide in the coating material of the photocatalyst coating 320 in different regions may be different.

Referring to fig. 14, in some embodiments of the present application, the photocatalyst coating 320 includes a first density portion 321, a second density portion 322 and a third density portion 323, wherein the first density portion 321 is near the top of the surface light source assembly 310 along the length direction, the second density portion 322 is located at two sides of the first density portion 321 along the width direction, and the third density portion 323 is located at the bottom of the first density portion 321 along the length direction.

The density of the photocatalyst coating 320 in the first density portion 321 is greater than the density of the photocatalyst coating 320 in the second density portion 322, and the density of the photocatalyst coating 320 in the second density portion 322 is greater than the density of the photocatalyst coating 320 in the third density portion 323.

It should be noted that, the dimension of the first density portion 321 along the Z-axis direction may be determined according to the wind speed of the upper air outlet 211, and the dimension of the first density portion 321 along the X-axis direction may be determined according to the position of the upper air outlet 211. The dimension of the second density portion 322 along the X-axis direction may be determined according to the wind speed of the side air outlet 212, and the dimension of the second density portion 322 along the Z-axis direction may be determined according to the position of the side air outlet 212. The remaining area is a third density portion 323.

It can be understood that the first density portion 321 is close to the upper air outlet 211, the second density portion 322 is close to the side air outlet 212, the air outlet direction of the upper air outlet 211 is parallel to the photocatalyst coating 320, the air outlet direction of the side air outlet 212 faces the two sides of the photocatalyst coating 320, and the effect of accelerating air circulation of the upper air outlet 211 is better than that of the side air outlet 212, so that the density of the photocatalyst coating 320 in the first density portion 321 is greater than that of the photocatalyst coating 320 in the second density portion 322, the cost can be saved, and the efficiency of degerming and deodorizing can be improved. The third density portion 323 is far from the upper air outlet 211 and the side air outlet 212, so that the density of the photocatalyst coating 320 in the second density portion 322 is greater than that of the photocatalyst coating 320 in the third density portion 323, thereby saving cost and improving the efficiency of sterilization and smell removal.

Referring to fig. 7, 8, 9, and 15-18, in some embodiments of the application, the duct assembly 210 includes: the air duct bubble layer 213, the air duct cover 214, and the air duct cover 215.

The air duct foam layer 213 is connected to the case 100, and a first flow channel 216 for air to flow is formed between the air duct foam layer 213 and the inner container 120 of the case 100. Thus, the thickness of the air duct assembly 210 in the direction shown by the Y axis can be reduced without providing an air duct bottom plate, thereby reducing space occupation.

The air duct cover plate 214 is located at one side of the air duct foam layer 213 facing the opening, and the air duct cover plate 214 covers two sides of the air duct foam layer 213 along the width direction, and two sides of the air duct cover plate 214 along the width direction are provided with side air outlets 212, and the side air outlets 212 are communicated with the first flow channel 216. In this way, the side air outlet 212 is not easily found when viewed from the opening of the accommodating chamber, and thus the influence on the aesthetic degree is small.

Wherein, the air duct cover 214 is provided with a communication port 2141 near the top in the length direction, and the communication port 2141 communicates with the first flow channel 216. The surface light source assembly 310 is disposed on a side of the duct cover 214 facing away from the duct foam layer 213.

The duct cover 214 is provided with a plurality of first connection portions 2142, and the first connection portions 2142 may be used to connect with the liner 120. The first connection portion 2142 may be a hook.

Wherein, the air duct cover 215 is covered and arranged at the top of the air duct cover 214 along the length direction, a second flow channel 217 for air flow is formed between the air duct cover 215 and the air duct cover 214, the second flow channel 217 is communicated with the communication port 2141, the bottom of the air duct cover 215 along the length direction is provided with an upper air outlet 211, and the second flow channel 217 is communicated with the upper air outlet 211. In this way, the upper air outlet 211 is not easily found when viewed from the opening of the accommodating chamber, so that the influence on the aesthetic degree is small.

Specifically, the air duct cover 215 is provided with a plurality of second connection portions 2151, the air duct cover 214 is provided with a plurality of third connection portions 2143 matching the second connection portions 2151, and the second connection portions 2151 are connected to the third connection portions 2143 in a one-to-one correspondence. The second connecting portion 2151 may be a hook, and the third connecting portion 2143 may be a slot.

The air duct cover 215 has a plurality of abutting portions 2152 disposed at intervals, wherein the abutting portions 2152 are abutted against the surface light source assembly 310 toward one side of the surface light source assembly 310, and an upper air outlet 211 is formed in a space between two adjacent abutting portions 2152.

In some embodiments, the surface light source assembly 310 includes a first light bar and a light plate structure, wherein the first light bar is disposed at the top of the light plate structure along the length direction and is close to the upper air outlet 211.

Specifically, referring to fig. 7 and 8, the top of the surface light source assembly 310 in the length direction is located in the duct cover 215. The longitudinal direction is the direction shown by the Z axis.

The first Light bar may include a substrate and a Light-Emitting Diode (LED) patch.

The light plate structure comprises a reflecting plate, a light guide plate and a diffusion plate which are arranged in a laminated mode, and the photocatalyst coating 320 is coated on one side, away from the light guide plate, of the diffusion plate.

It can be appreciated that when the first light bar works and operates, higher heat can be generated, the influence of temperature rise on the service life of the first light bar can be reduced by being arranged close to the upper air outlet 211, the safety is improved, the operation duty ratio of the first light bar can be improved, and the use efficiency is enhanced.

In some embodiments of the present application, the air duct cover 215 is a light-transmissive air duct cover, and the second light bar is disposed in the second flow channel 217.

Specifically, the air duct cover 215 may be made of glass, resin, plastic, or the like. The second light bar may be used to alert the operating state of the decorative or surface light source assembly 310 to improve the user experience. And the second light bar is arranged in the second flow channel 217, which is beneficial to the improvement of heat dissipation and service life of the second light bar.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. The illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1. An air-cooled refrigerator, comprising:

A case; the box body is provided with a containing cavity, and one side of the box body in the thickness direction is provided with an opening;

an air duct structure; the air duct structure is positioned in the box body and is provided with an air outlet;

The surface light source assembly is connected with the air duct structure and is positioned at one side of the air duct structure, which faces the opening, and the light emergent surface of the surface light source assembly faces the opening;

The photocatalyst coating is arranged on the light-emitting surface, and the air-out direction of at least one air outlet faces towards the photocatalyst coating.

2. The air-cooled refrigerator of claim 1, wherein the duct structure comprises:

A blower;

The air duct assembly is located above the fan in the length direction of the box body, the air duct assembly is provided with an air inlet in the bottom of the length direction, the air duct assembly is provided with an upper air outlet in the position, close to the top, in the length direction, the air outlet direction of the upper air outlet faces the photocatalyst coating, and side air outlets are formed in two sides of the air duct assembly in the width direction of the box body.

3. The air-cooled refrigerator of claim 2, wherein the number of the upper air outlets is plural, the plurality of upper air outlets includes a first upper air outlet and a second upper air outlet, and an angle is formed between an orientation of the first upper air outlet and an orientation of the second upper air outlet.

4. The air-cooled refrigerator of claim 2 or 3, wherein the density of the photocatalyst coating near the air outlet is greater than the density of the photocatalyst coating far from the air outlet.

5. The air-cooled refrigerator of claim 4, wherein a thickness of the photocatalyst coating near the air outlet is greater than a thickness of the photocatalyst coating far from the air outlet;

Or the photocatalyst coating comprises a base layer and a photocatalyst doped in the base layer, wherein the weight of the photocatalyst in the photocatalyst coating close to the air outlet is larger than that of the photocatalyst in the photocatalyst coating far from the air outlet; the weight of the photocatalyst is the ratio of the weight of the photocatalyst to the weight of the base layer in a unit area.

6. The air-cooled refrigerator of claim 4, wherein the photocatalyst coating comprises a first density portion, a second density portion and a third density portion, the first density portion is near the top of the surface light source assembly along the length direction, the second density portion is located at two sides of the first density portion along the width direction, and the third density portion is located at the bottom of the first density portion along the length direction;

The density of the photocatalyst coating in the first density part is greater than that in the second density part, and the density of the photocatalyst coating in the second density part is greater than that in the third density part.

7. The air-cooled refrigerator of claim 4, wherein the air duct assembly comprises:

The air duct foam layer is connected with the box body, and a first flow passage for air to flow is formed between the air duct foam layer and the box body;

An air duct cover plate; the air duct cover plate is positioned on one side of the air duct foam layer, which faces the opening, and covers two sides of the air duct foam layer along the width direction, the two sides of the air duct cover plate along the width direction are provided with the side air outlets, and the side air outlets are communicated with the first flow channel; the air duct cover plate is provided with a communication port at a position close to the top along the length direction, and the communication port is communicated with the first flow channel; the surface light source component is arranged on one side of the air duct cover plate, which is away from the air duct foam layer;

An air duct outer cover; the air duct cover is covered on the top of the air duct cover plate along the length direction, a second flow passage for air to flow is formed between the air duct cover plate and the air duct cover plate, the second flow passage is communicated with the communication port, the air duct cover is provided with an upper air outlet along the bottom of the length direction, and the second flow passage is communicated with the upper air outlet.

8. The air-cooled refrigerator of claim 2 or 3, wherein the surface light source assembly comprises a first light bar and a light plate structure, and the first light bar is arranged at the top of the light plate structure along the length direction and is close to the upper air outlet.

9. The air-cooled refrigerator of claim 7, further comprising a second light bar, wherein the air duct cover is a light-transmissive air duct cover, and wherein the second light bar is disposed within the second flow channel.

10. An air-cooled refrigerator, comprising: the device comprises a box body, an air duct structure, a surface light source component and a photocatalyst coating; the air duct structure is configured to be located in the box body, the surface light source assembly is configured to be connected with the air duct structure, the photocatalyst coating is configured to be arranged on the light emitting surface of the surface light source assembly, and the air outlet direction of at least one air outlet of the air duct structure is configured to face the photocatalyst coating.