Air-cooled refrigeration equipment

Abstract

The present invention provides an air-cooled refrigeration device, which includes a storage chamber, a refrigeration chamber, an air supply passage and a return air passage. The air supply passage and the return air passage respectively connect the storage chamber and the refrigeration chamber to enable air to circulate between the storage chamber and the refrigeration chamber. The air-cooled refrigeration device further includes an evaporator and a cover body arranged in the refrigeration chamber. The cover body forms at least a part of the top wall and / or the side wall of the refrigeration chamber. The cover body includes a front side cover and a water guiding structure. A plurality of ventilation holes and at least one water guiding hole are provided on the front side cover. The plurality of ventilation holes are communicated with the return air passage. The water guiding structure is arranged on the top of the front side cover and is used for guiding the liquid flowing onto the front side cover to the water guiding hole. The air-cooled refrigeration device of the present invention ensures the refrigeration effect of the stored items.

Description

Technical Field

[0001] The present invention belongs to the technical field of refrigeration equipment, and specifically provides an air-cooled refrigeration equipment. Background Art

[0002] Air-cooled refrigeration equipment mainly includes air-cooled refrigerators, air-cooled freezers, and air-cooled cold cabinets in terms of types. Structurally, air-cooled refrigeration equipment includes a storage chamber, a refrigeration chamber, a supply air passage, and a return air passage. The supply air passage and the return air passage respectively connect the storage chamber and the refrigeration chamber to enable air to circulate between the storage chamber and the refrigeration chamber. Among them, an evaporator is placed in the refrigeration chamber to cool the air, so that the flowing air cools the stored items (including food ingredients, medicines, beverages, biological reagents, colonies, chemical reagents, etc.) in the storage chamber.

[0003] Existing air-cooled refrigeration equipment usually opens ventilation holes on the front side wall of the refrigeration chamber, so that the return air passage communicates with the refrigeration chamber through the ventilation holes. During the operation of the air-cooled refrigeration equipment, condensed water often forms on the upper surface of the top wall of the refrigeration chamber. When the condensed water flows to the ventilation opening, part of it will evaporate into water vapor and flow to the evaporator along with the air flow to form frost, affecting the refrigeration effect of the evaporator; part of it will form frost or ice at the ventilation opening, hindering the flow of air and further affecting the refrigeration effect of the evaporator. Summary of the Invention

[0004] One object of the present invention is to solve the problem that the condensed water generated on the upper surface of the top wall of the existing refrigeration chamber easily causes frosting at the ventilation opening and the evaporator, thereby affecting the refrigeration effect of the stored items.

[0005] Another object of the present invention is to prevent the condensed water on the outer shell of the supply air passage from flowing into the refrigeration chamber.

[0006] To achieve the above objects, the present invention provides an air-cooled refrigeration equipment, including:

[0007] A storage chamber, a refrigeration chamber, a supply air passage, and a return air passage, wherein the supply air passage and the return air passage respectively connect the storage chamber and the refrigeration chamber to enable air to circulate between the storage chamber and the refrigeration chamber;

[0008] An evaporator, which is arranged in the refrigeration chamber and is used to cool the air in the refrigeration chamber;

[0009] A cover body, which constitutes at least a part of the top wall and / or side wall of the refrigeration chamber. The cover body includes a front side cover and a water guiding structure. A plurality of ventilation holes and at least one water guiding hole are provided on the front side cover. The plurality of ventilation holes communicate with the return air passage; the water guiding structure is arranged on the top of the front side cover, and the water guiding structure is used to guide the liquid flowing to the front side cover to the water guiding hole.

[0010] Optionally, the water guiding structure is configured such that its height gradually decreases as it approaches the water guiding hole; and / or, the at least one water guiding hole is provided at the bottom of the front side cover.

[0011] Optionally, two water guiding holes are provided on the front side cover, one of the two water guiding holes is provided at the lower left of the plurality of ventilation holes, and the other of the two water guiding holes is provided at the lower right of the plurality of ventilation holes; the water guiding structure is configured to gradually incline downward from its middle to both ends.

[0012] Optionally, the top surface of the water guiding structure slopes upward away from the front side cover to prevent liquid from falling from the front side of the water guiding structure.

[0013] Optionally, the top surface of the water guiding structure is attached or coated with a hydrophobic layer; and / or, the part of the front side cover located on the top side of the water guiding structure is attached or coated with a hydrophobic layer.

[0014] Optionally, the cover body further includes a vibration member connected to the water guiding structure, and the vibration member is configured to force the water guiding structure to vibrate to promote the flow of liquid on the water guiding structure.

[0015] Optionally, one end of the vibration member is fixedly connected to the water guiding structure, and the vibration member is configured to swing reciprocally when blown by an air flow.

[0016] Optionally, the vibration member is fixedly connected to the position of the water guiding structure close to the water guiding hole, and the vibration member is configured to be impacted by the liquid flowing down from the water guiding structure, thereby forcing the vibration member to vibrate.

[0017] Optionally, the cover body further includes a top cover, the front end of the top cover is joined to the top end of the front side cover, and the top cover slopes downward along the direction close to the front side cover so that the liquid above the top cover flows to the front side cover under the action of its own gravity.

[0018] Optionally, one end of the top cover away from the front side cover abuts against the outer shell of the air supply channel; a flange is provided on the side of the outer shell facing the top cover, and the flange is used to block the connection gap between the outer shell and the top cover.

[0019] Optionally, the cover body includes a top cover, a front side cover located at the front of the top cover, and a water guiding structure located on the side of the front side cover away from the top cover; the top surface of the top cover slopes downward along the direction close to the front side cover, so that the liquid above the top surface flows to the front side cover under the action of its own gravity; a plurality of ventilation holes and at least one water guiding hole are provided on the front side cover; the water guiding structure is arranged at the top of the front side cover, and the water guiding structure is used to guide the liquid flowing to the front side cover to the water guiding hole.

[0020] Optionally, two water guiding holes are provided on the front side cover, one of the two water guiding holes is arranged at the lower left of the plurality of ventilation holes, and the other of the two water guiding holes is arranged at the lower right of the plurality of ventilation holes.

[0021] Optionally, the water guiding structure is arranged as an arc-shaped structure, and each end of the water guiding structure extends above one of the water guiding holes respectively.

[0022] Optionally, the water guiding structure is arranged as an inverted V-shaped structure, and each end of the water guiding structure extends above one of the water guiding holes respectively.

[0023] Optionally, the top surface of the water guiding structure slopes upward in the direction away from the front side cover, so as to form a V-shaped groove between the water guiding structure and the front side cover.

[0024] Optionally, a sunken groove formed from front to back is provided on the front side cover, and the plurality of ventilation holes, the at least one water guiding hole and the water guiding structure are all arranged on the rear wall of the sunken groove.

[0025] Optionally, the rear wall of the sunken groove slopes forward gradually from its top end to its bottom end.

[0026] Optionally, the bottom wall of the ventilation hole located at the lowest position among the plurality of ventilation holes is formed on the bottom wall of the sunken groove.

[0027] Optionally, the bottom wall of the sunken groove slopes downward gradually from front to back.

[0028] Based on the foregoing description, those skilled in the art can understand that in the foregoing technical solution of the present invention, by providing a water guiding hole on the front side cover, providing a water guiding structure on the top of the front side cover, and enabling the water guiding structure to guide the liquid flowing to the front side cover to the water guiding hole, it is avoided that the liquid flows to the ventilation hole, thereby avoiding frosting or icing of the liquid at the ventilation hole, and avoiding the liquid flowing to the ventilation hole and evaporating into water vapor and frosting at the condenser. Therefore, the air-cooled refrigeration device of the present invention ensures the refrigeration effect of the stored items.

[0029] Further, by attaching or coating a hydrophobic layer on the top surface of the water guiding structure and on the part of the front cover located on the top side of the water guiding structure, it is possible to prevent the liquid from staying on this part of the water guiding structure and the front cover due to its own viscosity, thereby avoiding the liquid from freezing on this part of the water guiding structure and the front cover; and it promotes the flow of the liquid, enabling the liquid to quickly flow to the water guiding holes.

[0030] Further, by providing a vibration member connected to the water guiding structure, the vibration member can force the water guiding structure to vibrate, thereby promoting the flow of the liquid on the water guiding structure and enabling the liquid to quickly flow to the water guiding holes.

[0031] Still further, by providing a flange on the outer shell of the air supply channel and making the flange block the connection gap between the outer shell and the top cover, the liquid on the outer shell of the air supply channel can flow onto the top cover under the guidance of the flange, rather than flowing into the connection gap between the outer shell and the top cover, and even less likely to flow into the refrigerating chamber through this connection gap.

[0032] Based on the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will more clearly understand the above and other objects, advantages, and features of the present invention. Description of the Drawings

[0033] To more clearly illustrate the technical solutions of the present invention, some embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. Those skilled in the art should understand that the components or parts denoted by the same reference numerals in different drawings are the same or similar; the drawings of the present invention are not necessarily drawn to scale with each other.

[0034] In the drawings:

[0035] Figure 1 is a schematic diagram of the compartment distribution effect of the air-cooled refrigeration device in some embodiments of the present invention;

[0036] Figure 2 is a schematic diagram of the air circulation effect in the air-cooled refrigeration device in some embodiments of the present invention;

[0037] Figure 3 is a schematic diagram of the structure of the inner liner part of the air-cooled refrigeration device in some embodiments of the present invention;

[0038] Figure 4 is Figure 3 a cross-sectional view of the inner liner part along the A-A direction;

[0039] Figure 5 is a first axonometric schematic diagram of the cover body in some embodiments of the present invention;

[0040] Figure 6It is the second axonometric schematic diagram of the cover body in some embodiments of the present invention;

[0041] Figure 7 is Figure 6 the sectional view of the middle cover body along the B-B direction;

[0042] Figure 8 It is the effect schematic diagram of the water guiding structure and the hydrophobic layer in some embodiments of the present invention;

[0043] Figure 9 It is the axonometric schematic diagram of the cover body in some other embodiments of the present invention;

[0044] Figure 10 It is the axonometric schematic diagram of the cover body in still some other embodiments of the present invention. Detailed implementation manners

[0045] Those skilled in the art should understand that the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention. This part of the embodiments is intended to explain the technical principle of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts should still fall within the protection scope of the present invention.

[0046] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can also be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0048] Furthermore, it should also be noted that the air-cooled refrigeration equipment of the present invention includes refrigerators, freezers and cold cabinets.

[0049] The air-cooled refrigeration equipment of the present invention will be described in detail below with reference to the accompanying drawings. Among them, Figure 1 is a schematic diagram of the compartment distribution effect of the air-cooled refrigeration equipment in some embodiments of the present invention; a schematic diagram of the air circulation effect in the air-cooled refrigeration equipment in some embodiments of the present invention.

[0050] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, the air-cooled refrigeration equipment includes a box body 1 and a storage compartment 2, a refrigeration compartment 3, a supply air passage 4, and a return air passage 5 provided inside the box body 1. Among them, the supply air passage 4 and the return air passage 5 communicate the storage compartment 2 and the refrigeration compartment 3 respectively, so that air circulates between the storage compartment 2 and the refrigeration compartment 3.

[0051] Continuing to refer to Figure 1 and Figure 2 , the air-cooled refrigeration equipment further includes an evaporator 6 provided in the refrigeration compartment 3. The evaporator 6 is used to cool the air in the refrigeration compartment 3, so that when the cooled air flows to the storage compartment 2, it cools the stored items (including food ingredients, medicines, wines, biological reagents, colonies, chemical reagents, etc.) in the storage compartment 2.

[0052] In some embodiments of the present invention, the air-cooled refrigeration equipment further includes an inner container installed in the box body 1. The inner container of the air-cooled refrigeration equipment will be briefly described below with reference to Figure 3 and Figure 4 . Among them, Figure 3 shows the structure of the inner container part of the air-cooled refrigeration equipment; Figure 4 is Figure 3 a cross-sectional view of the inner container part in the air-cooled refrigeration equipment along the A-A direction in

[0053] As Figure 3 and Figure 4 described, in some embodiments of the present invention, the storage compartment 2 is defined at the top of the inner container 7, and the refrigeration compartment 3 is defined at the bottom of the inner container 7.

[0054] Continuing to refer to Figure 3 and Figure 4 , the air-cooled refrigeration equipment further includes a cover body 8 installed in the inner container 7, and the cover body 8 constitutes at least a part of the top wall and / or side wall of the refrigeration compartment 3. The rear end of the cover body 8 abuts against the outer shell 41 of the supply air passage 4.

[0055] Continuing to refer to Figure 3 and Figure 4, on one side of the housing 41 of the air supply channel 4 facing the cover 8, a flange 411 is provided. The flange 411 is used to block the connection gap between the housing 41 and the cover 8, so that the liquid (such as condensed water, defrosting water, etc.) on the housing 41 can flow onto the cover 8 under the guidance of the flange 411, rather than flowing into the connection gap between the housing 41 and the cover 8, and even less likely to flow into the refrigerating chamber 3 through this connection gap.

[0056] Preferably, the upper surface of the flange 411 gradually slopes downward away from the air supply channel 4 to promote the flow of the liquid thereon through the sloping upper surface of the flange 411 and prevent liquid accumulation.

[0057] Furthermore, preferably, the lower surface of the flange 411 abuts against the top surface of the cover 8 to limit the upward movement of the cover 8 and fix the cover 8 in the vertical direction.

[0058] Next, refer to Figures 5 to 10 to describe the cover 8 in detail. Among them, Figure 5 is the first axonometric schematic diagram of the cover in some embodiments of the present invention; Figure 6 is the second axonometric schematic diagram of the cover in some embodiments of the present invention; Figure 7 is Figure 6 the cross-sectional view of the cover along the B-B direction in Figure 8 is the effect schematic diagram of the water guiding structure and the hydrophobic layer in some embodiments of the present invention; Figure 9 is the axonometric schematic diagram of the cover in some other embodiments of the present invention; Figure 10 is the axonometric schematic diagram of the cover in still some other embodiments of the present invention.

[0059] As Figures 5 to 7 shown, in some embodiments of the present invention, the cover 8 includes a top cover 81, a front side cover 82, and a water guiding structure 83. The top cover 81, the front side cover 82, and the water guiding structure 83 are fixedly connected to each other or integrally formed. Among them, the top cover 81 is located on the top side of the refrigerating chamber 3 and constitutes at least a part of the top wall of the refrigerating chamber 3. The front side cover 82 is located on the front side of the refrigerating chamber 3 and constitutes at least a part of the front side wall of the refrigerating chamber 3. The water guiding structure 83 is provided on the top of the front side cover 82.

[0060] Continue to refer to Figures 5 to 7 , the front end of the top cover 81 is connected to the top end of the front side cover 82, and the top cover 81 slopes downward along the direction close to the front side cover 82, so that the liquid above the top cover 81 flows onto the front side cover 82 under the action of its own gravity. The part of the top cover 81 close to the front side cover 82 sinks, so that the left and right sides of these two parts form a retaining edge to prevent the liquid from flowing to both sides.

[0061] Preferably, the downward inclination angle of any part of the top cover 81 for carrying liquid is not less than 5°.

[0062] Go back and refer to again Figure 4 , the cover body 8 is matched with the outer shell 41 of the air supply channel 4 through the top cover 81. Specifically, one end of the top cover 81 away from the front side cover 82 abuts against the bottom surface of the outer shell 41 and the flange 411 of the air supply channel 4.

[0063] Refer to again Figures 5 to 7 , a plurality of ventilation holes 821 and at least one water guide hole 822 are provided on the front side cover 82. Among them, the plurality of ventilation holes 821 communicate with the return air channel 5 to allow air to enter the refrigerating chamber 3 from the return air channel 5. At least one water guide hole 822 is provided at the bottom of the front side cover 82. Preferably, there are two water guide holes 822, and one of the two water guide holes 822 is provided at the lower left of the plurality of ventilation holes 821, and the other of the two water guide holes 822 is provided at the lower right of the plurality of ventilation holes 821, so that the two water guide holes 822 directly guide the liquid to the bottom wall of the refrigerating chamber 3 to prevent the liquid from contacting the evaporator 6.

[0064] Refer to again Figures 5 to 7 , in some embodiments of the present invention, a sunken groove 823 formed from front to back is further provided on the front side cover 82, and the ventilation holes 821 and the water guide holes 822 are both arranged on the rear wall of the sunken groove 823.

[0065] Preferably, the bottom wall of the lowermost ventilation hole 821 among the plurality of ventilation holes 821 is formed on the bottom wall of the sunken groove 823 to increase the flow area of air on the front side cover 82.

[0066] Furthermore, the bottom wall of the water guide hole 822 is formed on the bottom wall of the sunken groove 823, and the bottom wall of the sunken groove 823 gradually slopes downward from front to back, so that the bottom wall of the sunken groove 823 catches the liquid dripping from the water guide structure 83 and then flows into the refrigerating chamber 3 through the water guide hole 822. Optionally, the bottom wall of the water guide hole 822 is arranged such that its height gradually decreases as it approaches the water guide hole 822, so that the liquid on the bottom wall of the water guide hole 822 can all flow into the refrigerating chamber 3.

[0067] Further preferably, the rear wall of the sunken groove 823 gradually slopes forward from its top end to its bottom end, so that the liquid formed on the rear wall of the sunken groove 823 flows down to the bottom wall of the sunken groove 823 and flows into the refrigerating chamber 3 through the water guide hole 822.

[0068] Refer to again Figures 5 to 7, the water guiding structure 83 is also arranged on the rear wall of the sunken groove 823 and is located above all or most of the ventilation holes 821, so that the water guiding structure 83 intercepts the liquid flowing from the top cover 81 to the front side cover 82 and prevents the liquid from flowing to the ventilation holes 821 (especially when the water guiding structure is located above all the ventilation holes 821). Further, the water guiding structure 83 is configured such that its height gradually decreases as it approaches the water guiding hole 822, so that the liquid flows along the water guiding structure 83 to the water guiding hole 822.

[0069] From Figure 5 and Figure 6 It can be seen that the water guiding structure 83 is arc-shaped as a whole, and the arc-shaped top surface of the water guiding structure 83 enables the liquid thereon to flow smoothly. In addition, those skilled in the art can also set the water guiding structure 83 into any other feasible structure according to needs. For example, an inverted V-shaped structure.

[0070] Further, in some embodiments of the present invention, the top surface of the water guiding structure 83 slopes upward away from the front side cover 82 to prevent the liquid from falling from the front side of the water guiding structure 83 into the ventilation holes 821 below.

[0071] Continue to refer to Figures 5 to 7 , the structure of the rear side wall of the sunken groove 823 sloping downward and the structure of the water guiding structure 83 sloping upward form a V-shaped groove 84 between the water guiding structure 83 and the front side cover 82. The V-shaped groove 84 is used to receive and hold the liquid flowing down from the top cover 81 and guide the liquid to flow to the water guiding hole 822.

[0072] As Figure 8 shown, in some embodiments of the present invention, those skilled in the art can also, according to needs, attach or coat a hydrophobic layer 85 on the top surface of the water guiding structure 83 to prevent the liquid on the water guiding structure 83 from staying on the water guiding structure 83 due to its own viscosity, thereby avoiding the liquid from freezing on the water guiding structure 83; and promoting the flow of the liquid, enabling the liquid to flow quickly to the water guiding hole 822.

[0073] Optionally, correspondingly to the hydrophobic layer 85 on the water guiding structure 83, the part of the front side cover 82 located on the top side of the water guiding structure 83 is attached or coated with a hydrophobic layer 85.

[0074] As Figure 9 shown, in some other embodiments of the present invention, the cover body 8 further includes a vibration member 86 connected to the water guiding structure 83, and the vibration member 86 is used to force the water guiding structure 83 to vibrate to promote the flow of the liquid on the water guiding structure 83.

[0075] Specifically, the vibration member 86 is a sheet-like structure fixedly connected to the water guiding structure 83 at one end thereof, and the vibration member 83 is configured to swing reciprocally when blown by an air flow.

[0076] More specifically, as Figure 9 shown, the rear end of the vibration member 86 is fixedly connected to the water guiding structure 83, and the vibration member 86 extends forward from the water guiding structure 83. When air enters the ventilation hole 822, the air flow will impact the vibration member 86, causing the vibration member 86 to vibrate up and down repeatedly.

[0077] Preferably, the vibration member 86 is a sheet-like structure made of an elastic material. For example, the vibration member 86 can be a rubber sheet, a silica gel sheet, a metal thin sheet, a plastic thin sheet, etc.

[0078] Those skilled in the art can understand that when the vibration member 86 vibrates, it can transfer its vibration to the water guiding structure 83, causing the water guiding structure 83 to vibrate slightly. This vibration interacts with the liquid on the water guiding structure 83 and can promote the flow of the liquid.

[0079] As Figure 10 shown, in some other embodiments of the present invention, different from some embodiments shown in Figure 9 the vibration member 86 is fixedly connected to the position of the water guiding structure 83 close to the water guiding hole 822, and the vibration member 86 is configured to be impacted by the liquid flowing down from the water guiding structure 83, thereby forcing the vibration member 86 to vibrate.

[0080] Specifically, when the liquid flows down from the water guiding structure 83, it first drips onto the vibration member 86, then flows to the bottom wall of the sink 823, and finally flows into the refrigeration chamber 3 through the water guiding hole 822. Among them, when the liquid drips onto the vibration member 86, it causes the vibration member 86 to swing downward; when it leaves the vibration member 86, it causes the vibration member 86 to swing upward, thereby realizing the swinging of the vibration member 86.

[0081] Based on the foregoing description, those skilled in the art can understand that the present invention avoids the liquid flowing to the ventilation hole 821 by providing the water guiding hole 822 on the front side cover 82, providing the water guiding structure 83 on the top of the front side cover 82, and guiding the liquid flowing to the front side cover 82 to the water guiding hole 822. Furthermore, it avoids the liquid frosting or freezing at the ventilation hole 821, and avoids the liquid evaporating into water vapor at the ventilation hole 821 and frosting at the condenser 6. Therefore, the air-cooled refrigeration device of the present invention ensures the refrigeration effect of the stored items.

[0082] Furthermore, by attaching or coating a hydrophobic layer 85 on the top surface of the water guiding structure 83 and on the part of the front side cover 82 located on the top side of the water guiding structure 83, it is possible to prevent the liquid from staying in this part of the water guiding structure 83 and the front side cover 82 due to its own viscosity, and thus prevent the liquid from freezing on this part of the water guiding structure 83 and the front side cover 82; and it promotes the flow of the liquid, enabling the liquid to quickly flow to the water guiding hole 822.

[0083] Furthermore, by providing a vibration member 86 connected to the water guiding structure 83, the vibration member 86 can force the water guiding structure 83 to vibrate, thereby promoting the flow of the liquid on the water guiding structure 83 and enabling the liquid to quickly flow to the water guiding hole 822.

[0084] Still further, by providing a flange 411 on the outer shell 41 of the air supply channel 4 and making the flange 411 block the connection gap between the outer shell 41 and the top cover 81, the liquid on the outer shell 41 of the air supply channel 4 can flow to the top cover 81 under the guidance of the flange 411, rather than flowing to the connection gap between the outer shell 41 and the top cover 81, and even less likely to flow into the refrigeration chamber 3 through this connection gap.

[0085] So far, the technical solutions of the present invention have been described in combination with multiple foregoing embodiments. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is not limited to these specific embodiments. Without departing from the technical principle of the present invention, those skilled in the art can split and combine the technical solutions in the above-mentioned various embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principle of the present invention will fall within the protection scope of the present invention.

Claims

1. An air-cooled refrigeration device, comprising: a storage room, a refrigeration room, a supply air duct and a return air duct, the supply air duct and the return air duct respectively connecting the storage room and the refrigeration room to enable air to circulate between the storage room and the refrigeration room; an evaporator, which is arranged in the refrigeration room and is used to cool the air in the refrigeration room; a cover body, which forms at least a part of the top wall and the side wall of the refrigeration room, the cover body includes a top cover, a front side cover and a water guiding structure, one end of the top cover away from the front side cover abuts against the outer shell of the supply air duct, and the front end of the top cover is connected to the top end of the front side cover; a plurality of ventilation holes and at least one water guiding hole are provided on the front side cover, the plurality of ventilation holes are communicated with the return air duct; the water guiding structure is arranged on the top of the front side cover, and the height of the water guiding structure gradually decreases as it approaches the water guiding hole, and the water guiding structure is used to guide the liquid flowing onto the front side cover to the water guiding hole; and the top surface of the water guiding structure is inclined upward in a direction away from the front side cover to prevent the liquid from falling from the front side of the water guiding structure.

2. The air-cooled refrigeration device according to claim 1, wherein, the at least one water guiding hole is arranged at the bottom of the front side cover.

3. The air-cooled refrigeration device according to claim 2, wherein, two water guiding holes are provided on the front side cover, one of the two water guiding holes is arranged at the lower left of the plurality of ventilation holes, and the other of the two water guiding holes is arranged at the lower right of the plurality of ventilation holes; the water guiding structure is configured to be gradually inclined downward from the middle to both ends.

4. The air-cooled refrigeration device according to any one of claims 1-3, wherein, a hydrophobic layer is attached or coated on the top surface of the water guiding structure; and / or, a hydrophobic layer is attached or coated on the part of the front side cover located on the top side of the water guiding structure.

5. The air-cooled refrigeration device according to any one of claims 1-3, wherein, the cover body further includes a vibration member connected to the water guiding structure, and the vibration member is used to force the water guiding structure to vibrate to promote the flow of the liquid on the water guiding structure.

6. The air-cooled refrigeration device according to claim 5, wherein, one end of the vibration member is fixedly connected to the water guiding structure, and the vibration member is configured to be able to swing reciprocally when blown by an air flow.

7. The air-cooled refrigeration device according to claim 5, wherein, the vibration member is fixedly connected to a position of the water guiding structure close to the water guiding hole, and the vibration member is configured to be able to be impacted by the liquid flowing down from the water guiding structure, thereby forcing the vibration member to vibrate.

8. The air-cooled refrigeration device according to any one of claims 1-3, wherein, the top cover is inclined downward in a direction close to the front side cover, so that the liquid above the top cover flows onto the front side cover under the action of its own gravity.

9. The air-cooled refrigeration device according to claim 8, wherein, One side of the housing facing the top cover is provided with a flange, and the flange is used to block the connection gap between the housing and the top cover.

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