Refrigeration device

Abstract

The utility model provides a kind of refrigeration device, it includes: shell, ventilation passage, evaporator, water pan and middle part flow guide piece;Ventilation passage is opened with air inlet and the first air outlet located in air inlet below;Evaporator is located in ventilation passage;Water pan is located between evaporator and the first air outlet, to be used for the defrosting water of evaporator;Water pan and the at least one side wall of ventilation passage are spaced apart to constitute at least one flow-through passage portion, flow-through passage portion is communicated the first air outlet;Middle part flow guide piece is located between evaporator and water pan, to correspond flow-through passage portion has at least one middle part flow guide wall;In from top to bottom direction, middle part flow guide wall is inclinedly arranged towards flow-through passage portion.When gas flows from top to bottom, middle part flow guide wall can avoid gas directly impacting on water pan and thereby causing the reflux of cold gas, avoid airflow turbulence in ventilation passage, guarantee the wind speed and air volume output by ventilation passage, guarantee the refrigeration efficiency of refrigeration device.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a refrigeration device. Background Technology

[0002] A refrigeration unit is a device used to cool a specific space or object. Its core principle is to utilize the phase change or energy conversion of refrigerant to achieve the directional transfer of heat from a low-temperature region to a high-temperature region. A refrigeration unit mainly consists of a ventilation duct and an evaporator. The ventilation duct extends vertically. The evaporator is located at the top of the ventilation duct. The evaporator absorbs heat from the outside by evaporating the refrigerant, thereby lowering the gas temperature within the ventilation duct. When the refrigeration unit is cooling, the cool air in the ventilation duct flows from top to bottom to cool the items.

[0003] Frost easily condenses on the outside of the evaporator. Therefore, defrosting the evaporator is necessary to remove the frost. In related technologies, drip trays are usually installed on both sides of the ventilation duct, with the two drip trays spaced apart vertically. This allows the drip trays to collect defrost water while also providing sufficient passage space for cold air to circulate in the ventilation duct.

[0004] However, when the ventilation duct outputs cold air, the cold air will impact the two water collection pans, causing the cold air to flow back. The backflowing air will collide with the mainstream cold air flowing down from above, thus severely affecting the air velocity and volume output from the ventilation duct and reducing the cooling efficiency of the entire refrigeration unit. Utility Model Content

[0005] The purpose of this application is to provide a refrigeration device that can both receive defrost water and ensure the wind speed and air volume output from the ventilation channel.

[0006] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0007] According to one aspect of this application, a refrigeration device is provided, comprising: a housing, a ventilation channel, an evaporator, a drip tray, and a central guide member; the ventilation channel is disposed within the housing and extends vertically; the ventilation channel has an air inlet and a first air outlet, the air inlet being located above the first air outlet; the evaporator is disposed within the ventilation channel and located below the air inlet for cooling the gas within the ventilation channel; the drip tray is disposed within the ventilation channel; the drip tray is located below the evaporator for collecting defrost water during defrosting of the evaporator; the drip tray is spaced apart from at least one circumferential sidewall of the ventilation channel to allow for... The system comprises at least one flow channel, which connects to the first air outlet, which is located below the water collection tray. A central guide member is disposed within the ventilation channel and is located between the evaporator and the water collection tray. The central guide member has at least one central guide wall corresponding to the flow channel. In the top-to-bottom direction, the central guide wall is inclined toward the flow channel to guide the gas input from the air inlet into the flow channel, allowing the gas to pass over the water collection tray. In a horizontal projection plane perpendicular to the top-to-bottom direction, the projection of the lower end of the central guide wall is located within the area enclosed by the projection of the water collection tray.

[0008] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, when the gas flows from top to bottom, the central guide wall can prevent the gas from directly impacting the water receiving tray and causing the cold air to flow back. It also prevents the backflowing gas from colliding with the mainstream cold air flowing from top to bottom, avoids airflow turbulence in the ventilation channel, ensures the wind speed and air volume output by the ventilation channel, and ensures the cooling efficiency of the refrigeration device.

[0009] In this embodiment, the water receiving tray is spaced apart from the peripheral sidewall of the ventilation channel on both sides to form two flow channel portions; the central guide member has two central guide walls, and the distance between the two central guide walls gradually increases from top to bottom, so that the two central guide walls are used to input the gas input from the air inlet into the two flow channel portions respectively.

[0010] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The dual-flow channel design allows the gas passing through the water collection tray to be evenly distributed into the refrigeration room through the first air outlet, ensuring uniform temperature throughout the refrigeration room.

[0011] In this embodiment, the upper ends of the two central guide walls are connected by an arc transition, and the top end of the central guide extends upward.

[0012] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: On the one hand, it can avoid stress concentration at the top of the central guide component and improve the reliability of the central guide component; on the other hand, the gas and defrosting water can be stably diverted to multiple central guide walls, ensuring the stability and reliability of the gas and defrosting water flow.

[0013] In this embodiment, the refrigeration device further includes a side guide member corresponding to the central guide wall. The side guide member is connected to the inner peripheral wall of the ventilation channel where the flow channel is located. The side guide member is located between the central guide member and the evaporator. The side guide member has a side guide wall. In the direction from top to bottom, the side guide wall is inclined toward the water receiving tray.

[0014] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The side guide walls are inclined towards the water collection tray from top to bottom to guide the gas and defrost water to the central guide wall. On the one hand, this can reduce gas backflow and gas turbulence, and ensure gas delivery efficiency; on the other hand, it can facilitate the convergence and collection of defrost water, prevent defrost water on the evaporator from flowing to the bottom of the ventilation duct, and improve the collection efficiency of defrost water in the water collection tray.

[0015] In this embodiment, within the horizontal projection plane, the projections of the opposing ends of the two side guide walls are located within the area enclosed by the projection of the central guide member, and the projection of the evaporator is located within the area enclosed by the projections of the side guide members and the central guide member.

[0016] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: When the refrigeration unit defrosts, the defrosting water droplets from the evaporator fall onto the central guide wall and, guided by the central guide wall, fall into the drip tray, thus ensuring the drip tray's water collection efficiency and reducing the amount of liquid residue in the ventilation channel.

[0017] In this embodiment, a guide plate is provided at the lower end of the side guide wall, and the guide plate extends from top to bottom to guide the liquid on the side guide wall to the middle guide wall.

[0018] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The deflector plate guides the defrost water to drip onto the central deflector wall under gravity, thus preventing the defrost water from dripping onto the outside of the drip tray under the influence of gas, thereby improving the safety, reliability and stability of the refrigeration unit.

[0019] In this embodiment, a second air outlet is also provided on the ventilation channel, and the second air outlet is located between the side guide and the evaporator.

[0020] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The second air outlet can output the cool air in the ventilation duct to the outside, thereby improving the utilization of the cool air in the ventilation duct.

[0021] In this embodiment, the housing is provided with a refrigeration chamber for accommodating items, and the refrigeration chamber is connected to the first air outlet.

[0022] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The casing contains a refrigeration chamber for storing items, enabling refrigeration and freezing, extending the shelf life of items, and expanding the application range of refrigeration devices.

[0023] In this embodiment, the refrigeration device further includes a fan, which is disposed at the air inlet to input gas from outside the ventilation channel into the ventilation channel.

[0024] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The fan enables gas circulation between the ventilation duct and the outside environment, thereby enabling the evaporator to output cooling capacity.

[0025] In this embodiment, the refrigeration device further includes a water supply pipe, the input end of which is connected to the water receiving tray, and the other end of which is connected to the outside.

[0026] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The water pipe is used to drain the water from the drip tray to the outside, thus preventing the water from remaining in the drip tray for a long time and causing mold and odor. It also prevents water from overflowing from the drip tray and flowing into the ventilation duct. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the refrigeration device of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the refrigeration device of this application when the door is open.

[0029] Figure 3 This is a cross-sectional view of the ventilation channel and internal structure of this utility model.

[0030] Figure 4 yes Figure 3 The diagram shows the structure after the sealing cover is installed.

[0031] Figure 5 yes Figure 3 A partial cross-sectional view of the structure shown during cooling.

[0032] Figure 6 yes Figure 3 The diagram shows a partial structural cross-sectional view of the structured frost.

[0033] Figure 7 yes Figure 3 Front view of the structure shown.

[0034] Figure 8 This is a cross-sectional view of the central road component of this utility model.

[0035] Figure 9 This is a cross-sectional view of the side guide component of this utility model.

[0036] Figure 10 This is a structural cross-sectional view of the side guide, the middle guide, and the water receiving tray of this utility model.

[0037] The reference numerals in the attached drawings are explained as follows: 100, shell; 110, housing; 111, refrigeration compartment; 120, door; 200, ventilation channel; 210, air inlet; 211, protective net; 220, first air outlet; 230, second air outlet; 240, flow channel section; 310, fan; 320, evaporator; 330, water tray; 331, water pipe; 500, central guide component; 510, central guide wall; 520, guide plate; 600, side guide component; 610, side guide wall; 611, guide plate; 620, support wall; 630, connecting wall; 710, sealing cover. Detailed Implementation

[0038] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0039] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Figure 1 This is a schematic diagram of the refrigeration device of this application. Figure 2 This is a schematic diagram of the structure of the refrigeration device of this application when the door is open.

[0041] See Figure 1 and Figure 2 This application provides a refrigeration device. A refrigeration device is a device that utilizes a refrigerant phase change or energy conversion to achieve the directional transfer of heat from a low-temperature region to a high-temperature region. The refrigeration device can be an air conditioner, refrigerator, freezer, etc. The following example uses a refrigerator: Figure 3 This is a cross-sectional view of the ventilation channel and internal structure of this utility model.

[0042] See Figure 3 The refrigeration device may include a housing 100, a refrigeration system, and a ventilation duct 200. The refrigeration system and ventilation duct 200 are disposed within the housing 100 so that the housing 100 can protect the refrigeration system and ventilation duct 200. The refrigeration system is connected to the ventilation duct 200 to cool the gas within the ventilation duct 200.

[0043] See Figure 2 In this embodiment, the housing 100 may be provided with a refrigeration chamber 111 for accommodating items. The ventilation duct 200 may be connected to the refrigeration chamber 111 to introduce cold air from inside the ventilation duct 200 into the refrigeration chamber 111, thereby cooling the refrigeration chamber 111 and improving the shelf life of the items.

[0044] See Figure 2In this embodiment, the housing 100 may include a box body 110 and a door 120 that can be opened and closed on the box body 110. A refrigeration compartment 111 is provided inside the box body 110. The door 120 is used to open or close the refrigeration compartment 111.

[0045] See Figure 1 Taking the state of the refrigeration unit in use as a reference, the vertical direction of the refrigeration unit is the vertical direction of the following text, the opening direction of the refrigeration chamber 111 is the front-back direction of the following text, and the direction perpendicular to the front-back and vertical directions is the left-right direction of the following text.

[0046] See Figure 3 In this embodiment, the refrigeration system may include a compressor, a condenser, a capillary tube, and an evaporator 320 connected in sequence. The compressor compresses the refrigerant into a high-temperature, high-pressure gaseous refrigerant. The condenser condenses the high-temperature, high-pressure gaseous refrigerant into a high-pressure liquid refrigerant. The capillary tube depressurizes the high-pressure liquid refrigerant to form a low-temperature, low-pressure mist-like refrigerant. The evaporator 320 evaporates the mist-like refrigerant to form a low-pressure gaseous refrigerant and inputs the low-pressure gaseous refrigerant into the compressor, so that the compressor, condenser, capillary tube, and evaporator 320 constitute a cyclic refrigeration system. While evaporating the mist-like refrigerant, the evaporator 320 absorbs heat from the ventilation passage 200.

[0047] Figure 4 yes Figure 3 The diagram shows the structure after the sealing cover is installed.

[0048] See Figure 3 and Figure 4 In this embodiment, the evaporator 320 can be disposed within the ventilation channel 200 to improve the heat exchange efficiency between the evaporator 320 and the gas within the ventilation channel 200, thereby improving the cooling effect of the evaporator 320.

[0049] Figure 5 yes Figure 3 A partial cross-sectional view of the structure shown during cooling.

[0050] See Figure 4 and Figure 5 In this embodiment, the ventilation channel 200 can be a tubular structure extending vertically to facilitate gas transport.

[0051] In some embodiments, the ventilation duct 200 can be a rectangular tubular structure extending vertically.

[0052] See Figure 4 and Figure 5In this embodiment, the ventilation duct 200 may be provided with an air inlet 210 and a first air outlet 220. The air inlet 210 is located above the first air outlet 220. The ventilation duct 200 may be located on the rear side of the refrigeration chamber 111, and both the air inlet 210 and the first air outlet 220 are located on the front side wall of the ventilation duct 200, so that the air inlet 210 is used to input the gas in the refrigeration chamber 111 into the ventilation duct 200, and the first air outlet 220 can input the gas in the ventilation duct 200 into the refrigeration chamber 111, thereby realizing the circulation of cold air in the refrigeration device and improving the energy utilization efficiency of the refrigeration chamber 111.

[0053] In some embodiments, the air inlet 210 may be provided at the bottom of the cooling chamber 111, and the first air outlet 220 may be provided at the top of the cooling chamber 111.

[0054] In some embodiments, there may be multiple cooling chambers 111. The multiple cooling chambers 111 may be interconnected. In this case, the first air outlet 220 may be connected to the bottom of the lowest cooling chamber 111, and the air inlet 210 may be connected to the top of the highest cooling chamber 111, so as to realize the circulation of cold air.

[0055] See Figure 4 and Figure 5 In this embodiment, a second air outlet 230 may also be provided on the ventilation duct 200. The second air outlet 230 is located between the air inlet 210 and the first air outlet 220, and is located below the evaporator 320. The second air outlet 230 can connect to the cooling room 111, so that the cold air in the ventilation duct 200 can be input into the cooling room 111 through the second air outlet 230.

[0056] In some embodiments, the second air outlet 230 and the first air outlet 220 can be connected to the same refrigeration room 111.

[0057] In some embodiments, the second air outlet 230 and the first air outlet 220 are respectively connected to different refrigeration chambers 111 to ensure the refrigeration efficiency in different refrigeration chambers 111 and improve the reliability and stability of the refrigeration device.

[0058] In other embodiments, there may be multiple second air outlets 230. Multiple first air outlets 220 may be arranged at intervals in the left-right direction to facilitate the output of gas from the ventilation duct 200 into the cooling chamber 111.

[0059] See Figure 4 and Figure 5 In this embodiment, the cooling device may include a fan 310. The fan 310 is disposed at the air inlet 210 to introduce outside air into the ventilation channel 200 through the air inlet 210.

[0060] In some embodiments, the fan 310 may be a volute fan 310.

[0061] In some other embodiments, the fan 310 may also be an axial flow fan 310, so that the gas at the air inlet 210 can be drawn into the ventilation channel 200.

[0062] In some embodiments, the ventilation duct 200 may be provided with a protective net 211 at the air inlet 210. The protective net 211 is used to prevent external debris from entering the ventilation duct 200.

[0063] In this embodiment, the evaporator 320 can be disposed below the fan 310 to cool the gas delivered by the fan 310.

[0064] Figure 6 yes Figure 3 The diagram shows a partial structural cross-sectional view of the structured frost. Figure 7 yes Figure 3 Front view of the structure shown.

[0065] See Figure 6 In this embodiment, the refrigeration device may further include a drip tray 330. The drip tray 330 is disposed within the ventilation channel 200. The drip tray 330 is located below the evaporator 320 to collect defrost water during defrosting of the evaporator 320. The drip tray 330 is located above the first air outlet 220. The drip tray 330 is spaced apart from at least one circumferential sidewall of the ventilation channel 200 to form at least one flow channel portion 240. The flow channel portion 240 is used to connect the air inlet 210 and the first air outlet 220, so that the gas above the drip tray 330 can pass over the drip tray 330 and be output through the first air outlet 220.

[0066] The drip tray 330 can receive defrost water from the evaporator 320, thereby reducing the amount of liquid residue in the ventilation channel 200, preventing ice formation on the inner wall of the ventilation channel 200 during refrigeration, ensuring the refrigeration efficiency of the refrigeration unit, improving the energy utilization efficiency of the refrigeration unit, and ensuring the safety and reliability of the refrigeration unit.

[0067] See Figure 6 and Figure 7In some embodiments, the water receiving tray 330 extends in the front-to-back direction to connect to the inner wall of the ventilation channel 200. In the left-to-right direction, the opposite sides of the water receiving tray 330 are spaced apart from the inner wall of the ventilation channel 200, so that the left and right sides of the water receiving tray 330 respectively form flow channel portions 240, so that the gas above the water receiving tray 330 can pass over the water receiving tray 330. Furthermore, since the two flow channel portions 240 are arranged opposite each other, the gas after passing through the water receiving tray 330 can be evenly output to the cooling room 111 through the first air outlet 220, ensuring uniform temperature throughout the cooling room 111.

[0068] In other embodiments, the size of the water tray 330 projected in the front-back direction in the horizontal projection plane can be larger than the size of the evaporator 320 projected in the front-back direction, so that the water tray 330 can receive the defrosting water dripping from the evaporator 320 in the front-back direction, thereby effectively ensuring the water collection efficiency of the water tray 330 and keeping the liquid residue in the ventilation channel 200 low.

[0069] See Figure 6 In some embodiments, the refrigeration device may further include a water supply pipe 331. The inlet end of the water supply pipe 331 is connected to the water collection tray 330, and the other end of the water supply pipe 331 is connected to the outside of the ventilation channel 200, for discharging water from the water collection tray 330 to the outside, thereby preventing water from remaining in the water collection tray 330 for a long time and causing mold and odor. Furthermore, it also prevents water from overflowing from the water collection tray 330 and flowing into the ventilation channel 200.

[0070] In other embodiments, a valve (not shown in the figure) may also be provided on the water supply pipe 331 to control the opening and closing of the water supply pipe 331.

[0071] Figure 8 This is a cross-sectional view of the central road component of this utility model. Figure 9 This is a cross-sectional view of the side guide component of this utility model. Figure 10 This is a structural cross-sectional view of the side guide, the middle guide, and the water receiving tray of this utility model.

[0072] See Figure 4 , Figure 8 and Figure 10In this embodiment, the refrigeration device may further include a central guide member 500. The central guide member 500 is disposed within the ventilation channel 200 and located between the evaporator 320 and the drip tray 330. The central guide member 500 has at least one central guide wall 510 corresponding to the flow channel portion 240. In the top-to-bottom direction, the central guide wall 510 is inclined toward the flow channel portion 240 to guide the gas input from the air inlet 210 into the flow channel portion 240, allowing the gas to pass over the drip tray 330. When the gas flows from top to bottom, the central guide wall 510 can prevent the gas from directly impacting the drip tray 330 and causing the cold air to backflow, preventing the backflowing gas from colliding with the mainstream cold air flowing from top to bottom, avoiding airflow turbulence within the ventilation channel 200, ensuring the air velocity and air volume output from the ventilation channel 200, and ensuring the refrigeration efficiency of the refrigeration device.

[0073] See Figure 4 , Figure 8 and Figure 10 In this embodiment, within the horizontal projection plane perpendicular to the vertical direction, the projection of the lower end of the central guide wall 510 lies within the area enclosed by the projection of the water receiving tray 330. When the refrigeration unit defrosts, defrosting water droplets from the evaporator 320 fall onto the central guide wall 510 and, guided by the central guide wall 510, fall into the water receiving tray 330, thereby ensuring the water receiving efficiency of the water receiving tray 330 and reducing the amount of liquid residue in the ventilation channel 200.

[0074] Furthermore, the projection of the lower end of the central guide member 500 lies within the area enclosed by the projection of the water receiving tray 330. The main body of the gas flowing through the central guide wall 510 directly passes over the water receiving tray 330 through the flow channel 240. However, a small portion of the gas, guided by the central guide wall 510, will enter the water receiving tray 330. At this time, since no air outlet is provided between the central guide member 500 and the water receiving tray 330, a small portion of the gas will flow sequentially along the bottom wall and the peripheral side wall of the water receiving tray 330, and finally flow out of the water receiving tray 330. This creates an air resistance within the water receiving tray 330, reducing the subsequent flow of gas into the water receiving tray 330, reducing gas turbulence, and improving the cooling output efficiency and reliability of the refrigeration unit.

[0075] See Figure 4In this embodiment, the opposite sides of the water tray 330 are spaced apart from the peripheral sidewalls of the ventilation channel 200 to form two flow channel portions 240. The central guide member 500 may have a triangular prism structure. The central guide member 500 may extend in the front-rear direction to abut against and connect to the front and rear sidewalls of the ventilation channel 200. The left and right sides of the central guide member 500 are spaced apart from the ventilation channel 200, so that each of the left and right sides of the central guide member 500 has a central guide wall 510. In the top-to-bottom direction, the distance between the two central guide walls 510 gradually increases, so that the two central guide walls 510 are used to input the gas input from the air inlet 210 into the two flow channel portions 240 respectively, and pass over the water tray 330 respectively, thereby reducing the backflow gas generated when the gas impacts the water tray 330, and ensuring the cooling output efficiency and reliability of the ventilation channel 200.

[0076] In other embodiments, within the horizontal projection plane, the left and right sides of the projection of the water receiving tray 330 may extend beyond the left and right sides of the projection of the central guide member 500, so that the central guide member 500 can not only guide the gas, but also collect the defrosting water into the water receiving tray 330, thereby improving the reliability and stability of the central guide member 500.

[0077] In some embodiments, the central guide member 500 may have a pyramidal structure. The peripheral sides of the central guide member 500 are spaced apart from the ventilation channel 200, so that the central guide member 500 has at least four central guide walls 510. Multiple central guide walls 510 are arranged sequentially around the perimeter. The cross-sectional area of ​​the central guide member 500 gradually increases from top to bottom, so that the top of the central guide member 500 protrudes upwards, allowing the gas above the central guide member 500 to flow downwards through the multiple central guide walls 510 and pass over the water receiving tray 330.

[0078] In other embodiments, the periphery of the water receiving tray 330 may be spaced apart from the ventilation channel 200 to correspond to the pyramidal central guide member 500, so that the periphery of the water receiving tray 330 forms a flow channel portion 240, which facilitates the gas guided by the central guide member 500 to pass over the water receiving tray 330.

[0079] In other embodiments, the water receiving tray 330 and the central guide 500 can be connected to the ventilation channel 200 by ribs to reduce interference with gas flow and reduce the degree of gas turbulence.

[0080] In some embodiments, the central guide member 500 may have a triangular prism structure. The central guide member 500 may extend in a horizontal direction, and one of its peripheral sides is spaced apart from the ventilation channel 200, while the other peripheral sides of the central guide member 500 are connected to the inner peripheral wall of the ventilation channel 200, so that the central guide member 500 has only one central guide wall 510, which allows the gas on the upper side of the central guide member 500 to be input to the lower side of the water receiving tray 330.

[0081] In other embodiments, in the horizontal projection plane, one side of the water receiving tray 330 corresponding to the central guide wall 510 may extend beyond the central guide wall 510 to form a flow guide section; the other sides of the water receiving tray 330 may be sealed to the inner wall of the ventilation channel 200.

[0082] In some embodiments, the central guide member 500 may have a pyramidal structure. The central guide member 500 may extend in a horizontal direction, and one of its peripheral sidewalls is connected to the inner wall of the ventilation channel 200. The other peripheral sidewalls of the central guide member 500 are spaced apart from the inner peripheral wall of the ventilation channel 200, so that the central guide member 500 has at least three central guide walls 510, so that the gas on the upper side of the central guide member 500 can be introduced into the lower side of the water receiving tray 330 through the multiple central guide walls 510 respectively.

[0083] In other embodiments, within the horizontal projection plane, the water tray 330 projects onto one side of a plurality of central guide walls 510, extending beyond the projection of the central guide member 500 to receive defrost water. Furthermore, the periphery of the water tray 330 can be configured with at least three flow channels 240 corresponding to the central guide walls 510. The side of the water tray 330 corresponding to the connection between the central guide member 500 and the ventilation channel 200 can be connected to the peripheral wall of the flow channel.

[0084] See Figure 8 In this embodiment, when multiple central guide walls 510 are provided on the central guide member 500, the upper ends of the multiple central guide walls 510 are connected by an arc. On the one hand, this can avoid stress concentration at the top of the central guide member 500 and improve the reliability of the central guide member 500. On the other hand, the gas and defrosting water can be stably diverted to the multiple central guide walls 510, ensuring the stability and reliability of the gas and defrosting water flow.

[0085] See Figure 8 In this embodiment, the central guide member 500 can be formed by bending a single piece of sheet metal to improve the structural strength and reliability of the central guide member 500.

[0086] In some embodiments, multiple plates are assembled to form a central flow guide wall 510.

[0087] In some embodiments, the central guide member 500 can be a structure formed by injection molding of a material such as plastic, as long as it can have a central guide wall 510.

[0088] See Figure 8 In this embodiment, a guide plate 520 may also be provided at the lower end of the central guide wall 510. The guide plate 520 extends in the vertical direction. Under the action of gravity and surface tension, the defrosting water first flows along the central guide wall 510 to the guide plate 520, and then flows along the guide plate 520 into the water receiving tray 330, so as to prevent the defrosting water from flowing out to the outside of the water receiving tray 330 under the action of inertia, thereby realizing the directional flow of defrosting water and improving the reliability of the central guide component 500.

[0089] In some embodiments, in the vertical direction, the lower end of the guide plate 520 can extend into the water receiving tray 330 to further achieve directional drainage of defrosting water.

[0090] In other embodiments, the central guide wall 510 and the guide plate 520 are integrally formed to improve the structural strength and reliability of the central guide member 500.

[0091] See Figure 4 , Figure 9 and Figure 10 In this embodiment, the refrigeration device may further include a side guide member 600, which is disposed corresponding to the central guide wall 510. The side guide member 600 is connected to the inner peripheral wall of the ventilation channel 200 where the flow channel portion 240 is located. The side guide member 600 is located between the central guide member 500 and the evaporator 320. The side guide member 600 has a side guide wall 610. In the direction from top to bottom, the side guide wall 610 is inclined toward the water receiving tray 330 to guide gas and defrost water to the central guide wall 510. On the one hand, this can reduce gas backflow and reduce gas turbulence, ensuring gas delivery efficiency; on the other hand, it can facilitate the collection and gathering of defrost water, preventing defrost water on the evaporator 320 from flowing to the bottom of the ventilation duct, and improving the collection efficiency of defrost water in the water receiving tray 330.

[0092] In some embodiments, the refrigeration device may further include two side guide members 600. The two side guide members 600 are respectively connected to the left and right sides of the ventilation channel 200. The two side guide members 600 are respectively disposed corresponding to the two central guide walls 510 on the central guide member 500, so as to guide the gas output from the evaporator 320 and the defrosting water to the two central guide walls 510, thereby improving the guiding efficiency of the defrosting water and reducing the amount of liquid residue in the ventilation channel 200.

[0093] In some embodiments, within the horizontal projection plane, the projections of the opposing ends of the two side guide walls 610 can be located within the area enclosed by the projection of the central guide member 500, and the projection of the evaporator 320 can be located within the area enclosed by the projections of the side guide members 600 and the central guide member 500. This ensures that the defrosting water and gas output from the evaporator 320 can flow stably and reliably to the central guide member 500. On the one hand, this allows the gas to flow into the flow channel section 240 under the guidance of the central guide wall 510, thereby passing over the water tray 330 and flowing to the first air outlet 220; on the other hand, it allows the defrosting water to flow into the water tray 330 under the guidance of the central guide wall 510, thereby ensuring the collection efficiency of the defrosting water.

[0094] In other embodiments, the refrigeration device may also include one side guide 600, three side guides 600, or four side guides 600, so that the side guides 600 can be arranged one-to-one with the central guide wall 510, thereby guiding the gas and defrosting water on the evaporator 320 to the central guide wall 510 respectively.

[0095] In other embodiments, the side guide 600 can also be disposed on the front and rear sides of the ventilation duct, the middle guide 500 can extend in the left and right direction, and the front and rear sides of the water receiving tray 330 can be spaced apart from the inner wall of the ventilation channel 200 to form two flow channels 240, thereby realizing gas diversion, reducing gas turbulence, and also facilitating the flow of defrosting water into the water receiving tray 330.

[0096] See Figure 9 In this embodiment, a guide vane 611 may be provided at the lower end of the side guide wall 610. The guide vane 611 extends from top to bottom to guide the liquid on the side guide wall 610 to the central guide wall 510. The guide vane 611 is spaced apart from the central guide member 500. The guide vane 611 can guide defrost water to drip onto the central guide wall 510 under the action of gravity, thereby preventing defrost water from dripping onto the outside of the water receiving tray 330 under the action of gas, thus improving the safety, reliability and stability of the refrigeration device.

[0097] In some embodiments, the side guide 600 may be triangular in shape in a plane perpendicular to the front-back direction. The side guide 600 may include a connecting wall 630, a side guide wall 610, and a support wall 620. The connecting wall 630 extends vertically to abut and connect to the inner wall of the ventilation channel 200. The upper end of the side guide wall 610 is connected to the upper end of the connecting wall 630, and the side guide wall 610 is inclined relative to the connecting arm toward the central guide 500 to guide gas and defrosting water. The upper end of the support arm is connected to the lower part of the side guide wall 610, and the lower end of the support arm is connected to the lower end of the connecting wall 630 to support the side guide wall 610.

[0098] In other embodiments, the lower end projection of the side guide wall 610 may extend beyond the support wall 620 in the horizontal projection plane, thereby facilitating the guidance of defrosting water and preventing defrosting water from dripping onto the outside of the water receiving tray 330.

[0099] In some embodiments, the side guide 600 may be formed by bending a sheet metal to improve the reliability and stability of the side guide 600.

[0100] In other embodiments, the side guide 600 can be a structure formed by injection molding of materials such as plastic, as long as it can realize the function of guiding defrosting water and gas.

[0101] In other embodiments, the support wall 620 is arranged parallel to the central guide wall 510 to ensure that the space between the gas side support and the central support flows into the flow channel 240, thereby ensuring the uniformity and stability of the gas flow.

[0102] In other embodiments, the second air outlet 230 may be located above the side guide wall 610 so that the cold air generated by the evaporator 320 can be output to the outside through the second air outlet 230, and defrosting water can be effectively prevented from flowing out of the cooling room 111 through the second air outlet 230.

[0103] See Figure 4 In this embodiment, the refrigeration device may further include a sealing cover 710. The sealing cover 710 is disposed within the ventilation channel 200. The upper end of the sealing cover 710 is connected to the air inlet 210, and the lower end of the sealing cover 710 is connected to the side guide wall 610. The evaporator 320 is located within the sealing cover 710 to prevent cold air from escaping into the space between the ventilation channel 200, the sealing cover 710, and the side guide wall, thereby improving the energy efficiency of the refrigeration device.

[0104] In some embodiments, the sealing cover 710 may extend in the front-rear direction to seal the front and rear sidewalls of the connecting ventilation channel 200 respectively.

[0105] See Figures 1 to 10 This application provides a refrigeration device that can be used to cool and refrigerate items in a refrigeration room 111.

[0106] When the refrigeration unit is cooling, the fan 310 starts to draw gas from the refrigeration chamber 111 into the ventilation duct 200 through the air inlet 210. The evaporator 320 starts to reduce the gas delivered by the fan 310, forming cold air. The cold air flows downward along the ventilation duct 200, passing through the side guide wall 610 and the middle guide wall 510 in sequence, before entering the flow channel 240 outside the water tray 330, and finally entering the first air outlet 220 through the flow channel 240, thus exiting into the refrigeration chamber 111. The side guide 600 and the middle guide 500 effectively prevent backflow caused by the cold air directly impacting the water tray 330, improving the efficiency of cold air delivery and ensuring the refrigeration efficiency of the refrigeration unit.

[0107] When the refrigeration unit defrosts, the defrosting water on the evaporator 320 drips onto the side guide wall 610 and the central guide wall 510 under gravity. Furthermore, the liquid on the side guide wall 610 flows along the side guide wall 610 and the guide vanes 611, eventually converging on the central guide wall 510 under gravity. The liquid on the central guide wall 510 is guided onto the guide vanes 520 under surface tension and gravity, eventually dripping into the drip tray 330. This effectively prevents defrosting water from dripping onto the outside of the drip tray 330, reduces the amount of residual liquid in the ventilation channel 200, reduces icing in the ventilation channel 200, improves the cold air delivery efficiency of the ventilation channel 200, and enhances the reliability, stability, and safety of the refrigeration unit.

[0108] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0109] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigeration device, characterized in that, include: case; A ventilation channel is provided inside the housing and extends vertically; the ventilation channel has an air inlet and a first air outlet, with the air inlet located above the first air outlet; An evaporator is disposed within the ventilation duct and located below the air inlet to cool the gas within the ventilation duct. A drip tray is provided in the ventilation channel; the drip tray is located below the evaporator to collect defrosting water during defrosting of the evaporator; the drip tray is spaced apart from at least one circumferential side wall of the ventilation channel to form at least one flow channel, the flow channel being connected to the first air outlet, the first air outlet being located below the drip tray; A central guide member is disposed within the ventilation channel and located between the evaporator and the water receiving tray; the central guide member has at least one central guide wall corresponding to the flow channel portion; in the top-to-bottom direction, the central guide wall is inclined toward the flow channel portion to guide the gas input from the air inlet into the flow channel portion at an inclination, so that the gas passes over the water receiving tray; in a horizontal projection plane perpendicular to the top-to-bottom direction, the projection of the lower end of the central guide wall is located within the area enclosed by the projection of the water receiving tray.

2. The refrigeration device according to claim 1, characterized in that, The water receiving tray is spaced apart from the peripheral wall of the ventilation channel on both sides to form two flow channel sections. The central guide member has two central guide walls. The distance between the two central guide walls gradually increases from top to bottom, so that the two central guide walls are used to guide the gas input from the air inlet into the two flow channels respectively.

3. The refrigeration device according to claim 2, characterized in that, The upper ends of the two central guide walls are connected by an arc transition, and the top of the central guide protrudes upward.

4. The refrigeration device according to claim 1, characterized in that, The refrigeration device further includes a side guide member corresponding to the central guide wall. The side guide member is connected to the inner peripheral wall of the ventilation channel where the flow channel is located. The side guide member is located between the central guide member and the evaporator. The side guide member has a side guide wall. In the direction from top to bottom, the side guide wall is inclined toward the water receiving tray.

5. The refrigeration device according to claim 4, characterized in that, The water receiving tray is spaced apart from the peripheral wall of the ventilation channel on both sides to form two flow channel sections. The central guide member has two central guide walls. The distance between the two central guide walls gradually increases from top to bottom, so that the two central guide walls are used to guide the gas input from the air inlet into the two flow channels respectively. Within the horizontal projection plane, the projections of the opposing ends of the two side guide walls are located within the area enclosed by the projection of the central guide member, and the projection of the evaporator is located within the area enclosed by the projections of the side guide members and the central guide member.

6. The refrigeration device according to claim 4, characterized in that, A guide vane is provided at the lower end of the side guide wall, and the guide vane extends from top to bottom to guide the liquid on the side guide wall to the middle guide wall.

7. The refrigeration device according to claim 4, characterized in that, A second air outlet is also provided on the ventilation channel, and the second air outlet is located between the side guide and the evaporator.

8. The refrigeration device according to claim 1, characterized in that, The housing has a refrigeration chamber for holding items, and the refrigeration chamber is connected to the first air outlet.

9. The refrigeration device according to claim 1, characterized in that, The refrigeration device also includes a fan, which is located at the air inlet to input gas from outside the ventilation channel into the ventilation channel.

10. The refrigeration device according to claim 1, characterized in that, The refrigeration device also includes a water supply pipe, the input end of which is connected to the water receiving tray, and the other end of which is connected to the outside.

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