WO2021042602A1

WO2021042602A1 - Refrigeration apparatus

Info

Publication number: WO2021042602A1
Application number: PCT/CN2019/122759
Authority: WO
Inventors: 王理想; 张辉; 高志谦; 唐云
Original assignee: 广东美的白色家电技术创新中心有限公司; 美的集团股份有限公司
Priority date: 2019-09-05
Filing date: 2019-12-03
Publication date: 2021-03-11
Also published as: CN110530097A

Abstract

Disclosed is a refrigeration apparatus (200), comprising: a box body (202), wherein the box body (202) is a cavity (213) with an opening (214); and an air curtain assembly (100), wherein the air curtain assembly (100) is arranged on the box body (202), the air curtain assembly (100) comprises an air duct (102), the air duct is provided with an air outlet (106), the air outlet (106) is located at the outer side of the plane where the opening (214) is located, and the air curtain assembly (100) is used for forming an air curtain on the side away from the opening (214). In the refrigeration apparatus, the air curtain assembly (100) is arranged on the box body (202), an air curtain barrier is formed on the outer side of the opening (214) of the box body (202) by means of an air flow sprayed out of the air outlet (106) of the air curtain assembly (100), such that exchange between an air flow inside the cavity (213) of the box body (202) and a room-temperature air flow is isolated, the phenomena of mass transfer and heat transfer between the air flow inside the box body (202) and the room-temperature air flow are weakened, the air flows on the two sides of the air curtain can sufficiently retain the respective original characteristics thereof, and the phenomena of condensation and frosting caused by exchange between the air flow inside the box body (202) and the room-temperature air flow are avoided.

Description

Refrigeration equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office with the application number "2019108386686" and the application name "refrigeration equipment" on September 5, 2019, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the technical field of refrigeration equipment, and specifically to a refrigeration equipment.

Background technique

Refrigeration equipment, for example, after the door of a refrigerator is opened, a large amount of cold air leaks from the inside of the box, which causes the temperature in the box to rise rapidly, which affects the preservation effect of the refrigerator and increases the energy consumption of the refrigerator. At the same time, a large amount of hot and humid air enters the box. After that, it will cause condensation and frosting inside the cabinet, which will affect the use of the refrigerator.

Summary of the invention

This application aims to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, one aspect of the present application is to provide a refrigeration device.

In view of this, according to one aspect of the present application, there is provided a refrigeration equipment, including: a box body, the box body is a cavity with an opening; an air curtain assembly, the air curtain assembly is arranged on the box body, the air curtain assembly includes: The air duct is provided with an air outlet, the air outlet is located outside the plane where the opening is located, and the air curtain assembly is used to form an air curtain on the side away from the opening.

In the refrigeration equipment provided by the present application, the air curtain assembly is arranged on the box body, and the air flow sprayed from the air outlet of the air curtain assembly forms an air curtain barrier outside the opening of the box body, thereby isolating the inside of the cavity of the box body and the room temperature. The exchange of airflow between the inside of the box and the room temperature weaken the mass transfer and heat transfer phenomenon, so that the airflow on both sides of the air curtain can better maintain their original characteristics, and avoid the airflow inside the box and the airflow at room temperature. The phenomenon of condensation and frosting caused by the exchange has the function of heat preservation and moisture insulation for the compartments inside the box, ensuring good heat preservation and freshness preservation, and saving energy, and the user feels that there is a sense of wind when opening the door, which greatly improves Increase the user’s satisfaction.

Specifically, the box body is a hollow cavity with an opening, and the opening may be provided on the side wall of the box body and communicated with the hollow cavity, or may be an edge contour line of the open side of the hollow cavity. Further, the air outlet of the air duct is located outside the plane where the opening is located, so that there is a certain distance between the air curtain barrier formed by the air curtain assembly and the plane where the opening is located, so that the air flow blown out through the air outlet can isolate the outside air at the same time. , The airflow will not enter the hollow cavity, which better guarantees the temperature and humidity of the air inside the cavity, thereby improving the performance of the refrigeration device. Further, the outer side of the plane where the opening is located refers to the side away from the cavity, that is, the air curtain and the cavity are respectively located on both sides of the plane where the opening is located.

Specifically, the air outlet may be a partial structure of the air duct or a closed-loop structure enclosed by the contour line of the port of the air duct. Further, there is a certain distance between the air outlet and the plane where the opening is located, so that the air flow blown out through the air outlet does not enter the cavity, thereby improving user satisfaction.

In addition, the refrigeration equipment in the above technical solution provided by this application may also have the following additional technical features:

In the above technical solution, the distance from the edge of the air outlet close to the side of the opening to the plane where the opening is located is greater than 10 mm.

In this technical solution, the distance between the part of the outline of the air outlet near the side of the opening and the plane where the opening is located is greater than 10mm, which can make the air curtain formed by the air flow out of the air outlet have a good barrier and isolate the air flow, and further Therefore, there is a certain distance between the air curtain barrier formed by the air curtain assembly and the plane where the opening is located, so that the outflowing airflow will not diffuse to the inside of the box through the opening and affect the preservation and heat preservation effect of the refrigeration equipment. The airflow flowing out of the tuyere quickly and smoothly forms an air curtain, and the formed air curtain has a good effect of heat preservation and moisture isolation on the airflow on both sides, and is beneficial to improve the utilization rate of the airflow.

In any of the above technical solutions, the air duct includes: a bottom plate, on which a raised structure is provided; a cover plate, the cover plate is arranged on the bottom plate to form an air duct, the cover plate includes a main board and a baffle connected to the main board, and the convex The lift structure and the baffle form an air outlet.

In this technical solution, the air duct includes a bottom plate and a cover plate. The air duct is formed on the bottom plate through the cover plate. The air duct provides a channel for airflow to flow out through the air outlet. The cover plate includes a main board and a baffle. The bottom plate forms the main air duct, the convex structure is arranged on the bottom plate and is located at the air outlet, the leeward surface of the convex structure facing the baffle forms a diversion air duct with the baffle, and the main air duct is connected with the diversion air duct It makes the air flow through the main air duct and the diversion air duct smoothly, quickly and continuously flow out at a certain angle through the air outlet, which is beneficial to improve the utilization rate of the air flow, thereby improving the working efficiency of the fan, reducing energy consumption, and saving energy. Further, the flow direction of the air flow is changed by the convex structure, that is, the air flow changes the flow direction through the main air duct and the guide air duct, and then flows out through the air outlet to form an air curtain barrier, and the air curtain barrier can isolate the air flow on both sides of the air curtain, and The mass and heat transfer phenomena of the airflow on both sides of the air curtain are weakened, and the airflow on both sides of the air curtain is insulated and moisture-proof.

In any of the above technical solutions, the raised structure includes a windward surface and a leeward surface on the side of the air outlet; the leeward surface of the raised structure has an included angle with the plane where the opening is located, and the value range of the included angle is greater than 5 degrees , And less than 25 degrees.

In this technical solution, the convex structure has a windward surface and a leeward surface, and the windward surface is an inclined surface with a certain slope. The windward surface serves as a guide for the airflow flowing through the convex structure. Further, the convex structure The angle between the leeward surface and the plane of the opening is in the range of greater than 5 degrees and less than 25 degrees, which can make the airflow out of the air outlet and the plane of the opening have an included angle, which is conducive to the formation of The air curtain has the function of a good barrier and isolation of air flow. By setting the included angle within a reasonable range, the air flow forming the air curtain is more concentrated and not easily diffused, which is beneficial to ensure that the formed air curtain has a better effect on the air flow on both sides. Good thermal insulation and moisture-proof effect, improve user satisfaction.

In any of the above technical solutions, the value range of the distance from the leeward surface at the air outlet to the baffle is greater than 2 mm and less than 7 mm.

In this technical solution, the range of the distance from the leeward surface at the air outlet to the baffle is greater than 2mm and less than 7mm, which can make the air curtain formed by the angular airflow flowing out through the air outlet have a good barrier and Isolate the effect of airflow. By setting the width of the air outlet within a reasonable range, it is helpful to ensure that the airflow flowing out through the air outlet quickly and smoothly forms an air curtain, and the formed air curtain has a good effect of heat preservation and moisture isolation on the airflow on both sides. At the same time, the utilization rate of the air flow is improved, which is beneficial to reduce the use cost.

In any of the above technical solutions, the connection between the main board and the baffle is arranged in a first arc structure; and/or the top of the convex structure is arranged in a second arc structure.

In this technical solution, the connection between the main board and the baffle is set in a first arc structure, and the first arc structure has a diversion function, so that the airflow in the air duct can pass through the first arc structure quickly, evenly and smoothly. The air outlet flows out so that the airflow flowing out through the air outlet can quickly form an air curtain, and the air curtain barrier can isolate the airflow on both sides of the air curtain, and weaken the mass and heat transfer phenomenon of the airflow on both sides of the air curtain. The airflow on both sides of the curtain has the effect of heat preservation and moisture isolation.

A second arc-shaped structure is arranged between the windward and leeward surfaces of the protruding structure. The second arc-shaped structure has a diversion function, so that the airflow in the air duct can pass through the air outlet quickly, evenly and smoothly through the second arc-shaped structure Flow out, so that the airflow flowing out through the air outlet can quickly form an air curtain, and the air curtain barrier can isolate the airflow on both sides of the air curtain, and weaken the mass and heat transfer phenomenon of the airflow on both sides of the air curtain, and affect the two sides of the air curtain. The airflow on the side has the effect of heat preservation and moisture insulation.

In any of the above technical solutions, there is an included angle between the windward surface of the protruding structure and the surface of the bottom plate.

In this technical solution, there is an included angle between the windward surface of the raised structure facing the main board and the surface of the bottom plate, that is, the windward surface of the raised structure is an inclined surface with a certain slope, and the airflow can flow through the windward surface with a slope. Changing the direction of the airflow is beneficial to the airflow flowing out through the air outlet to form an air curtain. Further, the protruding structure is a climbing airflow turning structure.

In any of the above technical solutions, it further includes: a fan. The fan is arranged in the air duct and is located between the air inlet and the air outlet of the air duct; wherein the air curtain assembly is arranged on the top of the box, and the air curtain assembly and the air inlet are both Located on the outside of the box.

In this technical solution, the air curtain assembly also includes a fan. The fan works to make the air flow circulate in the air duct, that is, the fan works to make the air flow out of the air duct through the air outlet, and then the air flow out through the air outlet can form an air curtain barrier to isolate the wind. The airflow on both sides of the air curtain weakens the mass and heat transfer phenomena of the airflow on both sides of the air curtain, so that the airflow on both sides of the air curtain can better maintain their original characteristics, and the air curtain can give people a sense of blowing. In turn, the user experience is improved.

Further, the air curtain assembly is arranged on the top of the box and located outside the box, and the air inlet is arranged on the side of the air duct away from the box, that is, the air inlet is connected with the external environment, so that the fan works to reduce the environment outside the refrigerator. Air is sucked into the air duct and flows out through the air outlet to form an air curtain. The air inlet is directly connected to the external environment, and there is no need to provide a through hole communicating with the air inlet on the box body. This greatly simplifies the structure of the product, reduces the processing cost, and facilitates installation. At the same time, the airflow introduced by the fan through the air inlet is The air in the external environment where the refrigeration equipment is located, by setting the air inlet to the outside of the cabinet, the temperature of the introduced air flow is the ambient temperature, and the wind blown out by the air curtain component through the air outlet will have a windy feeling on the user’s face without cooling The user’s perception is better.

In any of the above technical solutions, the range of the flow velocity of the fan is greater than 7m/s and less than 15m/s.

In this technical solution, the range of the flow velocity of the fan is greater than 7m/s and less than 15m/s, which can ensure that the airflow in the air duct flows in from the air inlet, and can pass through the air duct quickly, evenly, smoothly and continuously. The air outlet flows out, so that the airflow flowing out through the air outlet can quickly form an air curtain. By setting the flow rate of the fan within a reasonable range, it is helpful to ensure that the airflow flowing out through the air outlet quickly, more concentrated, and smoothly forms an air curtain, and the formed air curtain has better heat insulation and moisture isolation for the airflow on both sides The effect, at the same time, reduces the cost of use.

In any of the above technical solutions, it further includes: a sealing structure, the sealing structure is arranged corresponding to the air outlet, and the sealing structure is used to open or close the air outlet.

In this technical solution, the sealing structure is arranged opposite to the air outlet, and is used to open or close the air outlet, so that when the air outlet is opened by the sealing structure, the fan works to change the flow direction of the air flow from the air inlet through the main air duct and the guide air duct. Then it blows out through the air outlet, and the airflow flowing out through the air outlet can form an air curtain barrier and isolate the airflow on both sides of the air curtain, thereby weakening the mass and heat transfer phenomenon of the airflow on both sides of the air curtain, making the airflow on both sides of the air curtain The original characteristics of the air curtain can be better maintained, and the air curtain can give people a sense of blowing, thereby improving the user experience. When the air outlet is closed by the sealing structure, the fan stops working, which effectively saves energy.

In any of the above technical solutions, it further includes: a door body, which can be opened and closed at the opening, and the sealing structure is provided on the door body.

In this technical solution, the air curtain assembly is arranged on the top of the box body, and the sealing structure is arranged on the door body. The opening or closing action of the door body then drives the sealing structure to move to open or close the air outlet. That is, when the door of the refrigeration equipment is opened, the air outlet is opened, and the fan of the air curtain assembly can make the air flow blow out from the air inlet through the air outlet, and the air flow out of the air outlet can form an air curtain barrier on the surface of the opening and isolate the box. The airflow inside the body and room temperature weakens the mass transfer and heat transfer phenomenon of the airflow inside the box body and room temperature, so that the airflow on both sides of the air curtain can better maintain their original characteristics, and avoid the airflow and room temperature inside the box body. The phenomenon of condensation and frost caused by the exchange of the airflow has the function of heat preservation and moisture isolation for the compartment inside the box, ensuring good heat preservation and freshness preservation, and saving energy, and the user feels that there is a sense of wind when opening the door , Which greatly improves user satisfaction. When the door of the refrigeration equipment is closed, the sealing structure provided on the door can close the air outlet of the air curtain assembly, and the air outlet is closed by the sealing structure provided on the door, which simplifies the overall mechanism of the refrigerator, and further The opening and closing of the door body realizes the opening and closing of the air outlet of the air curtain assembly, which is simple to operate and enhances the user experience.

Further, the number of air outlets is the same as the number of door bodies. By setting the number of air outlets to be the same as the number of door bodies, the air curtain can be flexibly formed according to the opening and closing conditions of multiple door bodies, that is, the air curtain is formed at the opening of the cavity where the door body is opened. It does not affect the air flow in the closed cavity of the door, which can meet the requirement that when one of the two door bodies of the two-door refrigeration equipment is opened, an air curtain is formed in one compartment and no air curtain is formed in the other compartment, so as to avoid For example, the air curtain assembly of the refrigeration equipment in the prior art can only form an air curtain, which cannot meet the requirement of opening the door of one compartment in the side-by-side refrigeration equipment to form an air curtain, and the door of the other compartment does not need to be closed. The demand for the formation of the wind curtain has effectively expanded the scope of use of the product and improved the satisfaction of users.

The additional aspects and advantages of the present application will become apparent in the following description, or be understood through the practice of the present application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 shows a schematic structural diagram of the assembly of an air curtain assembly and a box body according to an embodiment of the present application;

FIG. 2 shows a partial schematic diagram of the assembly of the air curtain assembly and the box body according to an embodiment of the present application as shown in FIG. 1;

Fig. 3 shows a schematic structural diagram of a refrigeration device according to an embodiment of the present application.

Among them, the corresponding relationship between the reference signs and component names in Figures 1 to 3 is:

100 air curtain assembly, 102 air duct, 104 air inlet, 106 air outlet, 108 first air outlet, 110 second air outlet, 112 fan, 114 sealing structure, 116 bottom plate, 118 cover plate, 120 main air duct, 122 guide Flow duct, 124 main board, 126 baffle, 128 first arc structure, 129 second arc structure, 130 protruding structure, 131 windward side, 132 leeward side, 133 first sealing structure, 134 second sealing structure, 200 refrigeration equipment, 202 cabinet, 204 first compartment, 206 second compartment, 208 door, 210 first door, 212 second door, 213 cavity, 214 opening.

detailed description

In order to be able to understand the above objectives, features and advantages of the application more clearly, the application will be further described in detail below with reference to the accompanying drawings and specific implementations. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

In the following description, many specific details are set forth in order to fully understand this application. However, this application can also be implemented in other ways different from those described here. Therefore, the scope of protection of this application is not covered by the specific details disclosed below. Limitations of the embodiment.

Hereinafter, the air curtain assembly 100 and the refrigeration equipment 200 according to some embodiments of the present application will be described with reference to FIGS. 1 to 3.

Example one

As shown in FIGS. 1 to 3, according to a first aspect of the present application, a refrigeration device 200 is provided, which includes: a box body 202 and an air curtain assembly 100 arranged on the box body 202.

The box 202 is a cavity 213 with an opening 214; the air curtain assembly 100 includes an air duct 102, the air duct 102 is provided with an air outlet 106, and the air outlet 106 is located outside the plane where the opening 214 is located, and the air curtain assembly 100 is used for An air curtain is formed on the side away from the opening 214.

In the refrigeration equipment 200 provided by an embodiment of the present application, the air curtain assembly 100 is arranged on the box 202, and the air flow sprayed from the air outlet 106 of the air curtain assembly 100 forms an air curtain barrier outside the opening 214 of the box 202. It further isolates the air exchange between the inside of the cavity 213 of the box 202 and the room temperature, thereby weakening the mass and heat transfer phenomena of the air flow between the inside of the box 202 and the room temperature, so that the air flows on both sides of the air curtain can better maintain their original originals. It has characteristics to avoid condensation and frosting caused by the exchange of airflow inside the box 202 and airflow at room temperature, and has the function of heat preservation and moisture isolation for the compartments inside the box 202, ensuring good heat preservation and freshness preservation. And it saves energy, and the user feels that the door is open, and the user's satisfaction is greatly improved.

Specifically, as shown in FIGS. 1 and 3, the box 202 is a hollow cavity 213 with an opening 214. The opening 214 may be provided on the side wall of the box 202 and communicate with the hollow cavity 213, or may be hollow. The edge contour line of the open side of the cavity 213. Further, the air outlet 106 of the air duct 102 is located outside the end surface of the box 202 where the opening 214 is located, so that there is a certain distance between the air curtain barrier initially formed by the air curtain assembly 100 and the plane where the opening 214 is located, so as to pass through the outlet While the air flow blown by the tuyere 106 isolates the outside air, the air flow does not enter the hollow cavity 213, which better guarantees the temperature and humidity of the air inside the cavity 213, thereby improving the use performance of the refrigeration device. Further, the outside of the plane where the opening 214 is located refers to the side away from the cavity 213, that is, the air curtain and the cavity 213 are respectively located on both sides of the plane where the opening 214 is located.

Specifically, the air outlet 106 may be a partial structure of the air duct 102 or a closed-loop structure enclosed by the contour of the port of the air duct 102. Further, there is a certain distance between the air outlet 106 and the plane where the opening 214 is located, so that the air flow blown out through the air outlet 106 does not enter the cavity 213, thereby improving the user satisfaction.

Further, in an embodiment of the present application, the distance from the edge of the air outlet 106 on the side close to the opening 214 to the plane where the opening 214 is located is greater than 10 mm. As shown in Figures 2 and 3, the distance L between the part of the outline of the air outlet 106 on the side close to the opening 214 and the plane where the opening 214 is located is greater than 10 mm, which can make the air curtain formed by the air flow out of the air outlet 106 have a good The function of barrier and isolation of airflow prevents the outflow of airflow from spreading to the inside of the box 202 through the opening 214, which affects the preservation and heat preservation effect of the refrigeration equipment 200, and helps to ensure that the airflow out of the air outlet 106 quickly and smoothly forms wind The air curtain formed has a better heat-preservation and moisture-proof effect on the airflow on both sides, and is beneficial to improve the utilization rate of the airflow.

Further, in an embodiment of the present application, as shown in FIGS. 1 and 2, the air duct 102 includes a bottom plate 116 and a cover plate 118. The cover plate 118 is disposed on the bottom plate 116 to form the air duct 102; wherein, the bottom plate 116 A raised structure 130 is provided thereon; the cover plate 118 includes a main board 124 and a baffle 126 connected to the main board 124, and the raised structure 130 and the baffle 126 form an air outlet 106.

In this embodiment, the air duct 102 includes a bottom plate 116 and a cover plate 118. The cover plate 118 is provided on the bottom plate 116 to form an air duct 102. The air duct 102 provides a channel for airflow to flow out through the air outlet 106. The cover plate 118 includes The main board 124 and the baffle 126, wherein the main board 124 and the bottom plate 116 form a main air duct 120, the protruding structure 130 is arranged on the bottom plate 116 and is located at the air outlet 106, and the protruding structure 130 faces the leeward side of the side of the baffle 126 132 and the baffle 126 form a guide air duct 122, and the main air duct 120 is connected to the guide air duct 122, so that the air flows through the main air duct 120 and the guide air duct 122 smoothly, quickly and continuously through the air outlet 106. The flow out at a certain angle is beneficial to improve the utilization rate of the air flow, thereby improving the working efficiency of the fan 112, reducing energy consumption, and saving energy. Further, the flow direction of the air flow is changed by the protrusion structure 130, that is, the air flow changes the flow direction through the main air duct 120 and the guide air duct 122 and then flows out through the air outlet 106 to form an air curtain barrier, and the air curtain barrier can isolate both sides of the air curtain It also weakens the mass and heat transfer phenomena of the airflow on both sides of the air curtain, which has the effect of heat preservation and moisture isolation on the airflow on both sides of the air curtain.

Further, as shown in FIG. 2, the raised structure 130 includes a windward surface 131 and a leeward surface 132 on the side of the air outlet 106; the leeward surface 132 of the raised structure 130 and the plane where the opening 214 is located has an included angle α, The value range of the angle α is greater than 5 degrees and less than 25 degrees.

In this embodiment, the raised structure 130 has a windward surface 131 and a leeward surface 132. The windward surface 131 is an inclined surface with a certain slope. The windward surface 131 guides the airflow flowing through the raised structure 130. Further, By setting the angle α between the leeward surface 132 of the protruding structure 130 and the plane where the opening 214 is located between greater than 5 degrees and less than 25 degrees, the airflow flowing out through the air outlet 106 can be made to the plane where the opening 214 is located. There is an angle between them, which is beneficial to the formation of the air curtain to have a good barrier and to isolate the airflow. By setting the angle of the included angle within a reasonable range, the airflow forming the air curtain is more concentrated and difficult to diffuse, which is beneficial to ensure The formed air curtain has a better heat-preservation and moisture-proof effect on the airflow on both sides, and improves user satisfaction.

Further, along the flow direction of the airflow, the cross-sectional area of the guide air duct 122 formed by the leeward surface 132 and the baffle 126 is gradually reduced. By setting the guide air duct 122 in a constricted shape, the airflow from the air outlet 106 is increased. The flow velocity of the airflow can extend the spraying distance of the airflow, and improve the effect of the airflow exchange between the air curtain isolation cavity 213 and the indoor environment.

Further, in an embodiment of the present application, as shown in FIGS. 1 and 2, the value range of the distance W from the leeward surface 132 at the air outlet 106 to the baffle 126 is greater than 2 mm and less than 7 mm.

In this technical solution, the value range of the distance W from the leeward surface 132 at the air outlet 106 to the baffle 126 is greater than 2 mm and less than 7 mm, which can make the air curtain formed by the angular air flow out of the air outlet 106 It has a good barrier and the function of isolating airflow. By setting the width of the air outlet 106 within a reasonable range, it is helpful to ensure that the air flow out of the air outlet 106 quickly and smoothly forms an air curtain, and the formed air curtain has better heat insulation and moisture insulation for the airflow on both sides. The effect, at the same time, improves the utilization rate of the airflow, which is beneficial to reduce the use cost.

Further, in an embodiment of the present application, as shown in FIGS. 1 and 2, the connection between the main board 124 and the baffle 126 is set as a first arc structure 128; and/or the top of the protruding structure 130 is set as a first arc structure. Two arc structure 129.

In this embodiment, the connection between the main board 124 and the baffle 126 is a first arc-shaped structure 128, and the first arc-shaped structure 128 has a diversion function, so that the airflow in the air duct 102 can pass through the first arc-shaped structure 128. Flow out through the air outlet 106 quickly, evenly and smoothly, so that the air flow out of the air outlet 106 can quickly form an air curtain, and the air curtain barrier can isolate the air flow on both sides of the air curtain and weaken the air flow on both sides of the air curtain. The phenomenon of mass transfer and heat transfer has the effect of heat preservation and moisture isolation on the airflow on both sides of the air curtain.

A second arc-shaped structure 129 is arranged between the windward surface 131 and the leeward surface 132 of the protruding structure 130. The second arc-shaped structure 129 has a diversion function, so that the airflow in the air duct 102 can quickly pass through the second arc-shaped structure 129. , Flow out through the air outlet 106 evenly and smoothly, so that the air flow out of the air outlet 106 can quickly form an air curtain, and the air curtain barrier can isolate the air flow on both sides of the air curtain and weaken the transmission of the air flow on both sides of the air curtain. The phenomenon of mass and heat transfer has the effect of heat preservation and moisture isolation on the airflow on both sides of the air curtain.

Further, the arrangement of the first arc-shaped structure 128 and the second arc-shaped structure 129 further improves the guiding effect of the airflow in the air duct 102, which is beneficial for the airflow to circulate smoothly and quickly in the air duct 102, and is guided The flow air duct 122 changes the flow direction and then uniformly flows out through the air outlet 106, which greatly reduces the air loss of the air flow in the air duct 102, improves the utilization rate of the air flow, and enables the air flow out of the air outlet 106 to form an air curtain It has a good barrier and isolation effect and improves user satisfaction.

Further, the protruding structure 130 has an angle between the windward surface 131 on the side of the main board 124 and the surface of the bottom plate 116, that is, the windward surface 131 of the protruding structure 130 is an inclined surface with a certain gradient, and the airflow flows through the inclined surface. The windward surface 131 can change the direction of the airflow, which is beneficial for the airflow flowing out through the air outlet 106 to form an air curtain. Further, the protruding structure 130 is a climbing airflow turning structure.

Example two

As shown in FIGS. 1 to 3, in an embodiment of the present application, the air curtain assembly 100 includes: a fan 112 and an air duct 102. The fan 112 is arranged in the air duct 102 and located at the air inlet 104 and the air outlet 106 of the air duct 102. Among them, the air curtain assembly 100 is arranged on the top of the box 202, and the air curtain assembly 100 and the air inlet 104 are located on the outside of the box 202.

In this embodiment, the air curtain assembly 100 further includes a fan 112. The fan 112 works to make the air flow circulate in the air duct 102, that is, the fan 112 works to make the air flow out of the air duct 102 through the air outlet 106, and then flow out through the air outlet 106. Airflow can form an air curtain barrier to isolate the airflow on both sides of the air curtain, and weaken the mass and heat transfer phenomena of the airflow on both sides of the air curtain, so that the airflow on both sides of the air curtain can better maintain their original characteristics, and The air curtain can give people the sense of blowing air, thereby enhancing the user experience.

Further, as shown in FIG. 3, the air curtain assembly 100 is arranged on the top of the box body 202 and located outside the box body 202, and the air inlet 104 is arranged on the side of the air duct 102 away from the box body 202, that is, the air inlet 104 and The external environment is connected, so that the fan 112 works to suck ambient air outside the refrigerator into the air duct 102 and flow out through the air outlet 106 to form an air curtain. The air inlet 104 is directly connected to the external environment, and there is no need to provide a through hole communicating with the air inlet 104 on the box 202, which greatly simplifies the structure of the product, reduces processing costs, and facilitates installation. At the same time, the fan 112 passes through the air inlet 104 The introduced air flow is the air of the external environment where the refrigeration equipment 200 is located. By setting the air inlet 104 outside the cabinet 202, the temperature of the introduced air flow is the ambient temperature. The air curtain assembly 100 blows out through the air outlet 106, Blowing on the user’s face has a sense of wind but no coolness, and the user’s perception is better.

Further, the range of the flow velocity of the fan 112 is greater than 7m/s and less than 15m/s, which can ensure that the airflow in the air duct 102 flows in from the air inlet 104, and can pass through the air duct 102 quickly, evenly, smoothly and continuously. It flows out through the air outlet 106 so that the air flow flowing out through the air outlet 106 can quickly form an air curtain. By setting the flow rate of the fan 112 within a reasonable range, it is beneficial to ensure that the airflow flowing out through the air outlet 106 quickly, more concentrated, and smoothly forms an air curtain, and the formed air curtain has a better insulation for the airflow on both sides. The wet effect, at the same time, reduces the cost of use.

Example three

As shown in Figures 1 to 3, in an embodiment of the present application, the refrigeration equipment 200 includes a box 202, an air curtain assembly 100, and a door 208. The air curtain assembly 100 also includes a sealing structure 114, a sealing structure 114 and an outlet The air outlet 106 is correspondingly provided, and the sealing structure 114 is used to open or close the air outlet 106.

In this embodiment, the sealing structure 114 is arranged opposite to the air outlet 106, and is used to open or close the air outlet 106, so that when the air outlet 106 is opened by the sealing structure 114, the fan 112 can work to make the air flow from the air inlet 104 through the main air duct. 120. The diversion air duct 122 changes the flow direction and then blows out through the air outlet 106, and the airflow flowing out through the air outlet 106 can form an air curtain barrier and isolate the airflow on both sides of the air curtain, thereby weakening the mass transfer and mass transfer of the airflow on both sides of the air curtain. The heat transfer phenomenon enables the airflow on both sides of the air curtain to better maintain their original characteristics, and the air curtain can give people a sense of blowing, thereby improving the user experience. When the sealing structure 114 closes the air outlet 106, The fan 112 stops working, which effectively saves energy consumption.

Furthermore, as shown in FIG. 3, the door body 208 can be opened and closed at the opening 214 of the box body 202, and the sealing structure 114 is provided on the door body 208. The opening or closing action of the door body 208 further drives the sealing structure 114 to move to open or close the air outlet 106. That is, when the door 208 of the refrigeration equipment 200 is opened, the air outlet 106 is opened, and the fan 112 of the air curtain assembly 100 works to make the air flow blow out from the air inlet 104 through the air outlet 106, and the air flow out of the air outlet 106 is in the opening 214. The surface can form an air curtain barrier and isolate the airflow inside the box 202 and room temperature, thereby weakening the mass and heat transfer phenomena of the airflow inside the box 202 and room temperature, so that the airflow on both sides of the air curtain can better maintain their original original. It has characteristics to avoid condensation and frosting caused by the exchange of airflow inside the box 202 and airflow at room temperature, and has the function of heat preservation and moisture isolation for the compartments inside the box 202, ensuring good heat preservation and freshness preservation. And it saves energy, and the user feels that the door is open, and the user's satisfaction is greatly improved. When the door 208 of the refrigeration device 200 is closed, the sealing structure 114 provided on the door 208 can close the air outlet 106 of the air curtain assembly 100, and the air outlet 106 is closed by the sealing structure 114 provided on the door 208, The overall mechanism of the refrigerator is simplified, and the opening and closing of the air outlet 106 of the air curtain assembly 100 is further realized by opening and closing the door body 208, which is simple to operate and enhances the user experience.

Furthermore, as shown in FIG. 3, the number of air outlets 106 is the same as the number of door bodies 208. By setting the number of air outlets 106 to be the same as the number of door bodies 208, an air curtain can be flexibly formed according to the opening and closing conditions of multiple door bodies 208, that is, at the opening 214 of the cavity 213 where the door body 208 is opened. The air curtain, at the same time, does not affect the air flow in the cavity 213 where the door body 208 is closed, and can satisfy the requirement that when one of the two door bodies 208 of the side-by-side refrigeration equipment 200 is opened, an air curtain and the other are formed in one compartment. There is no need for air curtain formation in the compartment, which avoids that the air curtain assembly 100 of the refrigeration equipment 200 in the prior art can only form one air curtain, which cannot meet the requirements for opening the door 208 of a compartment in the refrigeration equipment 200 with a side-by-side door. An air curtain needs to be formed, and the door 208 of another compartment is closed without the need to form an air curtain, which effectively expands the use range of the product and improves user satisfaction.

In a specific embodiment, as shown in FIG. 3, the refrigeration device 200 is a side-by-side refrigerator. In any of the above embodiments, the air curtain assembly 100 is arranged on the side-by-side refrigerator, and the air outlet 106 of the air curtain assembly 100 is in communication with the external environment, and a fan is used. 112 Inhales air from the outside, and the air flows through the internal air duct 102. When the refrigerator door is opened, a certain angle of air flow can be generated at the air outlet 106. The air flow forms an air curtain barrier at the position of the refrigerator door frame to isolate the hot and cold air inside and outside the room. . An air outlet 106 is provided at the top of the first compartment 204 (freezer compartment) on the left and the second compartment 206 (refrigerator compartment) on the right. When the doors are opened separately, a wind curtain will be formed on the left and right sides.

Example four

Specifically, as shown in FIGS. 1 to 3, the refrigeration equipment 200 is a side-by-side refrigerator, and the box body 202 is provided with a first compartment 204 and a second compartment 206 (such as a refrigerating compartment and a freezing compartment), and the first compartment 204 And the second compartment 206 is arranged left and right in the vertical direction. The door 208 includes a first door 210 and a second door 212. The first door 210 is opened and closed at the opening 214 of the first compartment 204, and the second door 212 is opened and closed at the second The opening 214 of the compartment 206. The air curtain assembly 100 is the air curtain assembly 100 of any one of the first and second embodiments. The air curtain assembly 100 is arranged on the top of the box 202, and the air outlet 106 includes a first air outlet 108 and a second air outlet 110 , And toward the side of the opening 214, the sealing structure 114 includes a first sealing structure 133 provided on the first door body 210 and a second sealing structure 134 provided on the second door body 212.

When the first door 210 and the second door 212 are closed, the centrifugal fan of the air curtain assembly 100 does not rotate. At this time, the first air outlet 108 and the second air outlet 110 on the left and right sides of the air duct 102 are respectively blocked by the first door. The first sealing structure 133 on the top of the body 210 and the second sealing structure 134 on the top of the second door body 212 are blocked.

When the first door 210 of the first compartment 204 (freezer compartment) on the left is opened and the second door 212 of the second compartment 206 (refrigerator compartment) on the right is kept closed, it is on the right side of the air duct 102 The second air outlet 110 is blocked by the second sealing structure 134 on the top of the second door 212, the second air outlet 110 on the right side of the air duct 102 is closed, and the first air outlet 108 on the left side of the air duct 102 is opened. The fan is running, and the airflow is sucked into the air duct 102 formed by the cover plate 118 and the bottom plate 116 by the fan. In the air duct 102, the airflow first passes through the main air duct 120, and then passes through the convex structure on the bottom plate 116 in the guide air duct 122 130 changes the flow direction, and then passes through the flow channel formed between the first arc-shaped structure and the second arc-shaped structure for smooth turning, and then passes through the baffle 126 and the channel formed by the bottom plate 116 corresponding to the baffle 126 to change the flow direction. After being ejected from the first air outlet 108, an air curtain barrier is formed on the surface of the door frame of the first compartment 204, which has the effect of heat preservation and moisture isolation, and enables users to experience a strong sense of wind and enhances the user experience . Wherein, the flow direction of the airflow flowing out through the first air outlet 108 is shown by the arrow in FIG. 3.

In order to make the air flow accurately bend according to the angle of the baffle 126, the air flow first passes through the main air duct 120, then passes through the raised structure 130 on the bottom plate 116 in the guide air duct 122 to change the flow direction, and then passes through the first arc structure and The flow channel formed between the second arc-shaped structures is smoothly turned, and then the air flow passes through the baffle 126 and the channel formed by the bottom plate 116 opposite to the baffle 126 and is sprayed out through the air outlet 106, and the sprayed air flow is consistent with the vertical direction. The included angle is the same as the included angle between the baffle 126 and the vertical direction. This structure will keep the actual airflow direction consistent with the setting direction of the baffle 126, so that there is an accurate reference in the structural design, ensuring that the airflow angle of the actual air outlet 106 is exactly the same as the design angle, which is conducive to the formation of a good air curtain. The effect of barrier and isolation of airflow, and expand the scope of use of the product.

In the present application, the angle α between the direction of the airflow from the air outlet 106 and the surface where the opening is located is reasonably set, the distance W from the leeward surface at the air outlet 106 to the baffle 126, the flow velocity of the fan 112, and the air outlet 106 facing the opening. The distance L from the edge of the side 214 to the surface where the opening 214 is located enables the air curtain assembly 100 to form an air curtain when the door 208 of the refrigeration equipment 200 is opened, and the formed air curtain can weaken the mass transfer and the environment between the compartment and the environment. The heat transfer phenomenon has the function of heat preservation and moisture insulation for the compartment, avoiding condensation and frosting in the box 202, and at the same time enabling users to experience wind and improving user satisfaction.

Further, the side wall of the air duct 102 may also be provided with a silencer hole or a silencer cavity to reduce the noise generated by the air curtain assembly 100 and improve the user experience.

In this application, the term "plurality" refers to two or more than two, unless specifically defined otherwise. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in this application In at least one embodiment or example. In this specification, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A refrigeration equipment, including:

A box, the box is a cavity with an opening;

An air curtain assembly, the air curtain assembly is arranged on the box body, and the air curtain assembly includes:

An air duct, the air duct is provided with an air outlet, the air outlet is located outside the plane where the opening is located, and the air curtain assembly is used to form an air curtain on a side away from the opening.
The refrigeration equipment according to claim 1, wherein:

The distance from the edge of the air outlet close to the side of the opening to the plane where the opening is located is greater than 10 mm.
The refrigeration equipment according to claim 1, wherein the air duct comprises:

A bottom plate, the bottom plate is provided with a convex structure;

Cover plate, the cover plate is arranged on the bottom plate to form the air duct, the cover plate includes a main board and a baffle connected to the main board, and the protruding structure and the baffle form the Air outlet.
The refrigeration equipment according to claim 3, wherein:

The protruding structure includes a windward surface and a leeward surface on one side of the air outlet;

There is an included angle between the leeward surface of the convex structure and the plane where the opening is located, and the value range of the included angle is greater than 5 degrees and less than 25 degrees.
The refrigeration equipment according to claim 4, wherein:

The value range of the distance from the leeward surface at the air outlet to the baffle is greater than 2 mm and less than 7 mm.
The refrigeration equipment according to claim 3, wherein:

The connection between the main board and the baffle is set in a first arc structure;

and / or

The top of the protruding structure is arranged as a second arc structure.
The refrigeration equipment according to claim 4, wherein:

There is an included angle between the windward surface of the protruding structure and the surface of the bottom plate.
The refrigeration equipment according to any one of claims 1 to 7, further comprising:

A fan, the fan being arranged in the air duct and between the air inlet and the air outlet of the air duct;

Wherein, the air curtain assembly is arranged on the top of the box body, and the air curtain assembly and the air inlet are both located outside the box body.
The refrigeration equipment according to claim 8, wherein:

The range of the flow velocity of the fan is greater than 7 m/s and less than 15 m/s.
The refrigeration equipment according to any one of claims 1 to 7, further comprising:

A sealing structure, the sealing structure is arranged corresponding to the air outlet, and the sealing structure is used to open or close the air outlet.
The refrigeration equipment according to claim 10, further comprising:

The door body can be opened and closed at the opening, and the sealing structure is arranged on the door body.