Refrigeration device

Abstract

This utility model provides a refrigeration device, including a housing forming the outer shell of the refrigeration device; a heat exchanger disposed within the housing; the heat exchanger includes heat exchange tubes, each including straight flat tubes extending along the length of the heat exchanger, with multiple straight flat tubes spaced apart along the height of the heat exchanger; multiple bent flat tubes connected between adjacent straight flat tubes; a first heat dissipation fin group including multiple heat dissipation fins arranged sequentially along the length of the straight flat tubes, with multiple first heat dissipation fin groups disposed between adjacent straight flat tubes; a second heat dissipation fin group including multiple heat dissipation fins arranged sequentially along the length of the straight flat tubes, the second heat dissipation fin group being disposed at the top of the heat exchange tubes and above the top of one straight flat tube; and a first protective plate fixed to the top of the heat exchange tubes and above the top of the second heat dissipation fin group.

Description

Technical Field

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

[0002] Refrigeration equipment is a device that maintains a constant low temperature to store goods, and it is widely used in modern life and industrial production. For example, a freezer has a refrigeration compartment inside, which creates a refrigerated environment for storing goods.

[0003] The refrigeration system of a refrigeration unit includes a condenser, which cools the high-temperature, high-pressure refrigerant gas discharged from the compressor into a liquid. The condenser includes heat exchange tubes and fins installed on the heat exchange tubes. The fins are usually made of a metal material with good thermal conductivity (such as aluminum or copper) and are installed on the outside of the heat exchange tubes, thereby increasing the surface area of ​​the heat exchange tubes in contact with the air, making it easier for heat to be transferred from the refrigerant to the air.

[0004] However, since the fins are installed on the outside of the heat exchange tubes, they are easily pressed down and flattened during installation and use. This not only affects the heat exchange efficiency of the condenser, but also reduces the condenser installation efficiency of the refrigeration unit. Utility Model Content

[0005] The purpose of this invention is to provide a refrigeration device that helps prevent the condenser from being pressed down and collapsing during installation or use.

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

[0007] One aspect of this application provides a refrigeration device, including a housing forming the outer shell of the refrigeration device; a heat exchanger disposed within the housing; the heat exchanger comprising: heat exchange tubes, each heat exchange tube including straight flat tubes extending along the length direction of the heat exchanger, the straight flat tubes being provided in multiples, the multiple straight flat tubes being spaced apart along the height direction of the heat exchanger; bent flat tubes, the multiple bent flat tubes being provided, the multiple bent flat tubes being connected between two adjacent straight flat tubes; a first heat dissipation fin group including multiple heat dissipation fins arranged sequentially along the length direction of the straight flat tubes, the first heat dissipation fin group being provided in multiple sets, the multiple sets of the first heat dissipation fin groups being disposed between adjacent straight flat tubes; a second heat dissipation fin group including multiple heat dissipation fins arranged sequentially along the length direction of the straight flat tubes, the second heat dissipation fin group being disposed at the top of the heat exchange tubes and above the top of one of the straight flat tubes; and a first protective plate fixed to the top of the heat exchange tubes and disposed above the top of the second heat dissipation fin group.

[0008] The above technical solution has the following advantages or beneficial effects: Since external forces may act on the second heat dissipation fin assembly during installation or use, this application addresses this by placing the first protective plate on top of the heat exchange tube and above the second heat dissipation fin assembly. The first protective plate shields the outside of the second heat dissipation fin assembly, preventing these external forces from directly acting on the heat dissipation fins. This prevents the heat dissipation fins from being pressed down during installation due to collisions, squeezing, or other operations, effectively protecting the integrity of the heat dissipation fins and ensuring their normal heat exchange function. This not only improves the heat exchange efficiency of the condenser and avoids the problem of decreased heat exchange performance due to the collapse of the heat dissipation fins, but also reduces the maintenance and replacement work required due to fin damage, lowering maintenance costs and improving the installation efficiency and service life of the condenser in the refrigeration unit. Furthermore, the first protective plate can serve as a positioning and support component for the heat exchanger installation, facilitating accurate installation of the heat exchanger into the refrigeration unit's housing without damaging the heat dissipation fins.

[0009] In some embodiments of this application, a refrigeration device is provided, wherein the heat exchanger further includes a first side plate. The first side plate extends downward from one end of the first protective plate along its length direction. The first side plate is disposed on the side of the plurality of bent flat tubes away from the straight flat tubes, and the first side plate is fixedly connected to the bent flat tubes.

[0010] Another technical solution described above has the following advantages or beneficial effects: the first side plate can be fixedly connected to multiple bent flat tubes respectively, providing protection for the sides of the heat exchanger and thus enhancing the structural stability of the heat exchanger in the height direction. Simultaneously, in conjunction with the first protective plate, it can increase the structural stability of the heat exchanger in both the length and height directions, protecting the first heat dissipation fin assembly and the multiple straight flat tubes arranged along the height direction, reducing the possibility of deformation, damage, or displacement of heat exchanger components due to vibration, collision, or other factors during transportation, installation, and use.

[0011] In some embodiments of this application, a refrigeration device is provided, wherein the heat exchanger includes a first liquid collecting pipe disposed at the top of the heat exchange tube, and the first liquid collecting pipe is connected to one end of the straight flat tube located at the top of the heat exchange tube; the end of the first protective plate away from the first side plate is bent to form a first bend, and the first bend is disposed around the outer periphery of the first liquid collecting pipe.

[0012] Another technical solution described above has the following advantages or beneficial effects: By bending the end of the first protective plate away from the first side plate to form a first bend, and by fitting the first bend with the first liquid collecting pipe, the operator can directly wrap the first bend around the first liquid collecting pipe during installation, thereby quickly positioning and installing the first protective plate and the first liquid collecting pipe, improving the convenience and efficiency of installation. Furthermore, since the first bend is wrapped around the outer periphery of the first liquid collecting pipe, it allows the first protective plate, the first side plate, and the first liquid collecting pipe to form a mutually connected and mutually supporting structure, preventing the first liquid collecting pipe from squeezing and damaging the second heat dissipation fin assembly at the top and the multiple second heat dissipation fin assemblies arranged along the height during operation or installation.

[0013] In some embodiments of this application, a refrigeration device is provided, wherein the heat exchanger further includes a third heat dissipation fin group, the third heat dissipation fin group including a plurality of heat dissipation fins arranged sequentially along the length direction of the straight flat tube, the second heat dissipation fin group being disposed at the bottom of the heat exchange tube and below the bottom of the straight flat tube; the heat exchanger further includes a second protective plate, the second protective plate being fixed to the bottom of the heat exchange tube and disposed below the bottom of the third heat dissipation fin group.

[0014] Another technical solution described above has the following advantages or beneficial effects: Since the third heat dissipation fin group is located outside the heat exchange tube, external forces may act on it during installation or use. By providing a second protective plate at the bottom of the heat exchange tube and below the bottom of the second heat dissipation fin group, the second protective plate can protect the heat exchange tube and the third heat dissipation fin group above it, preventing the heat dissipation fins from being pressed down due to collisions, squeezing, or other operations during installation. This effectively protects the integrity of the heat dissipation fins and ensures that they can perform their heat exchange function normally. On the other hand, the second protective plate can also serve as a positioning and support component for the heat exchanger installation, making it convenient for operators to accurately install the heat exchanger into the refrigeration unit's housing without damaging the heat dissipation fins.

[0015] In some embodiments of this application, a refrigeration device is provided, wherein the heat exchanger further includes a second side plate. The second side plate extends upward from one end of the second protective plate along its length direction. The second side plate and the first side plate are respectively disposed on opposite sides of the heat exchanger. The second side plate is disposed on the side of the plurality of bent flat tubes away from the straight flat tubes, and the second side plate is fixedly connected to the bent flat tubes.

[0016] Another technical solution described above has the following advantages or beneficial effects: the second side plate can be fixedly connected to multiple bent flat tubes respectively, providing protection for the other side of the heat exchanger and thus enhancing the structural stability of the heat exchanger in the height direction. Simultaneously, in conjunction with the second protective plate, it can increase the structural stability of the heat exchanger in both the length and height directions, protecting the second heat dissipation fin assembly and the multiple straight flat tubes arranged along the height direction, reducing the possibility of deformation, damage, or displacement of heat exchanger components due to vibration, collision, or other factors during transportation, installation, and use.

[0017] In some embodiments of this application, a refrigeration device is provided, wherein the heat exchanger includes a second liquid collecting pipe, the second liquid collecting pipe is disposed at the bottom of the heat exchange tube, and the second liquid collecting pipe is connected to one end of the straight flat tube located at the top of the heat exchange tube; the end of the second protective plate away from the second side plate is bent to form a second bend, and the second bend is disposed around the outer periphery of the first liquid collecting pipe.

[0018] Another technical solution described above has the following advantages or beneficial effects: By bending the end of the second protective plate away from the second side plate to form a second bend, and by fitting the second bend with the second liquid collecting pipe, the operator can directly wrap the second bend around the second liquid collecting pipe during installation, thereby quickly positioning and installing the second protective plate and the second liquid collecting pipe, improving the convenience and efficiency of installation. Furthermore, the second bend wrapping around the outer periphery of the second liquid collecting pipe allows the second protective plate, the second side plate, and the second liquid collecting pipe to form a mutually connected and mutually supporting structure, preventing the second liquid collecting pipe from squeezing and damaging the top third heat dissipation fin assembly and the multiple third heat dissipation fin assemblies arranged along the height during operation or installation.

[0019] In some embodiments of this application, a refrigeration device is provided, the refrigeration device further comprising a fan assembly, the fan assembly comprising a fan housing disposed within the housing, the fan housing having a fan cavity and a receiving cavity, the fan cavity and the receiving cavity being connected; a fan impeller disposed within the fan cavity; and a heat exchanger disposed within the receiving cavity, the heat exchanger being arranged at intervals relative to the fan impeller along the axial direction of the fan impeller.

[0020] Another technical solution described above has the following advantages or beneficial effects: By providing a fan chamber and a receiving chamber in the fan casing, and integrating the impeller and heat exchanger into the corresponding chambers, the fan assembly and heat exchanger are integrated. On the one hand, this improves the space utilization rate inside the refrigeration device, making the overall structure of the refrigeration device more compact. On the other hand, during the transportation and installation of the refrigeration device, shaking and collisions are inevitable. The fan casing can serve as an external protective structure for the heat exchanger, capable of withstanding a certain degree of external impact, thus preventing the heat dissipation fins in the heat exchanger from being directly impacted and deformed, collapsed, or even broken. By integrating the fan assembly with the heat exchanger, and in conjunction with the aforementioned first and second protective plates, the heat dissipation fins can be protected more reliably.

[0021] In some embodiments of this application, a refrigeration device is provided, wherein the first protective plate, the first side plate, the second protective plate, and the second side plate are arranged sequentially around the outer peripheral wall of the heat exchanger in a circumferential direction; the first protective plate, the first side plate, the second protective plate, and the second side plate are arranged sequentially along the peripheral side wall of the accommodating cavity.

[0022] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: the first protective plate, the first side plate, the second protective plate, and the second side plate are not only set on the outer peripheral wall of the heat exchanger, but also arranged sequentially along the peripheral side wall of the accommodating cavity. They can effectively protect the heat exchanger from all directions and effectively resist collisions and compressions from all directions. Whether it is an accidental collision that may occur during installation, transportation, or refrigeration, or under the action of external forces such as tools and equipment in the usage environment, the protective structure composed of the first protective plate, the first side plate, the second protective plate, and the second side plate can effectively block and protect the heat dissipation fins and flat tubes from damage.

[0023] In some embodiments of this application, a refrigeration device is provided, wherein a portion of the heat exchanger is disposed within the accommodating cavity, and another portion of the heat exchanger protrudes outside the accommodating cavity; an extension plate protrudes from the bottom peripheral edge of the accommodating cavity toward the side away from the fan, and the extension plate is provided with buckles spaced apart along the axial direction of the fan; a first fixing part is provided inside the fan housing, the first fixing part and the buckles being spaced apart and opposite to each other along the axial direction of the impeller, and the first fixing part is located on the side of the buckles near the impeller; a spring buckle protrudes from the top peripheral edge of the accommodating cavity toward the side away from the fan; a second fixing part is provided inside the fan housing, the second fixing part and the spring buckle being spaced apart and opposite to each other along the axial direction of the impeller, and the second fixing part is located on the side of the spring buckle near the impeller; a second protective plate is engaged between the buckles and the first fixing part, and the first protective plate is engaged between the spring buckle and the second fixing part.

[0024] Another technical solution described above has the following advantages or beneficial effects: During the installation of the heat exchanger in the fan casing, the main stress-bearing part of the heat exchanger is at the bottom. By engaging the second protective plate between the snap-fit ​​and the first fixing part, the third heat dissipation fin assembly at the bottom is supported, reducing the direct impact of external forces on the third heat dissipation fins during installation and preventing damage. Furthermore, since the spring-loaded snap-fit ​​protruding from the top periphery of the receiving cavity has a certain degree of elasticity, the operator can bend the snap-fit ​​to induce a certain elastic deformation, thereby reducing the impact force on the second heat exchange fins during installation. When the heat exchanger is pushed into the receiving cavity and engaged with the snap-fit, the snap-fit ​​undergoes a certain degree of elastic deformation and engages with the first protective plate. When the heat exchanger is installed in place, the first protective plate is engaged between the snap-fit ​​and the second fixing part, protecting the second heat dissipation fin assembly at the top and reducing the direct impact of external forces on the second heat dissipation fins during installation and preventing damage.

[0025] In some embodiments of this application, a refrigeration device is provided, wherein each of the heat dissipation fins in the first heat dissipation fin group, the second heat dissipation fin group, and the third heat dissipation fin group extends along the thickness direction of the heat exchanger, and the length of the heat dissipation fin is greater than the width of the straight flat tube in the thickness direction of the heat exchanger; one end of the heat dissipation fin is flush with one end of the straight flat tube, and the other end of the heat dissipation fin extends beyond the other end of the straight flat tube; when the heat exchanger is installed in the fan housing, the end of the straight flat tube flush with the heat dissipation fin is located on the side of the heat exchanger near the buckle, and the end of the straight flat tube protruding outside the straight flat tube is located on the side of the heat exchanger near the impeller.

[0026] Another technical solution described above has the following advantages or beneficial effects: By placing the end of the straight flat tube flush with the heat dissipation fins on the side of the heat exchanger near the clip, and placing the end of the heat dissipation fins protruding from the straight flat tube on the side of the heat exchanger near the impeller, when the heat exchanger is first inserted into the first fixing part and the clip, the end of the straight flat tube flush with the heat dissipation fins serves as the main stress-bearing end. This avoids the problem of damage occurring during installation due to the end of the heat dissipation fins protruding from the straight flat tube serving as the main stress-bearing end. Thus, the structural integrity of the heat exchanger during installation can be effectively improved, and damage to the heat dissipation fins can be avoided.

[0027] Another aspect of this application provides a refrigeration device, including a housing forming the outer shell of the refrigeration device; a heat exchanger disposed within the housing, the heat exchanger including heat exchange tubes, the heat exchange tubes including: straight flat tubes extending along the length direction of the heat exchanger, multiple straight flat tubes being provided, the multiple straight flat tubes being spaced apart along the height direction of the heat exchanger; bent flat tubes, multiple bent flat tubes being provided, the multiple bent flat tubes being connected between two adjacent straight flat tubes; a first heat dissipation fin group including multiple heat dissipation fins arranged sequentially along the length direction of the straight flat tubes, the first heat dissipation fin group being provided in multiple sets, the multiple sets of the first heat dissipation fin groups being disposed between adjacent straight flat tubes; a third heat dissipation fin group including multiple heat dissipation fins arranged sequentially along the length direction of the straight flat tubes, the third heat dissipation fin group being disposed at the bottom of the heat exchange tubes and below the bottom of one of the straight flat tubes; and a second protective plate fixed to the bottom of the heat exchange tubes and disposed below the bottom of the third heat dissipation fin group.

[0028] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: Since the third heat dissipation fin group is located on the outside of the heat exchange tube, there will be external forces acting on the third heat dissipation fin group during installation or use. In this application, a second protective plate is provided at the bottom of the heat exchange tube and below the bottom of the second heat dissipation fin group. The second protective plate can protect the heat exchange tube and the third heat dissipation fin group above it, preventing the heat dissipation fins from being pressed down due to collisions, squeezing or other operations during installation, thereby effectively protecting the integrity of the heat dissipation fins and ensuring that they can perform their heat exchange function normally. On the other hand, the second protective plate can serve as a positioning and support component for the heat exchanger installation, making it convenient for operators to accurately install the heat exchanger into the housing of the refrigeration unit without damaging the heat dissipation fins. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.

[0030] Figure 1 This is a schematic diagram of a refrigeration device according to an embodiment of this application;

[0031] Figure 2 for Figure 1 A diagram of the back of the building;

[0032] Figure 3 for Figure 2 Schematic diagram of the medium-pressure compressor compartment;

[0033] Figure 4 for Figure 3 Schematic diagram of the intermediate heat exchanger;

[0034] Figure 5 for Figure 4 An exploded view;

[0035] Figure 6 This is a schematic diagram of the integrated installation of the fan assembly and heat exchanger.

[0036] Figure 7 This is a schematic diagram of the fan casing;

[0037] Figure 8 for Figure 6 An exploded view;

[0038] Figure 9 for Figure 6 A cross-sectional view;

[0039] Figure 10 for Figure 9 A magnified view of part A.

[0040] The correspondence between the reference numerals and the component names is as follows:

[0041] 1. Housing; 101. Compressor compartment; 11. Door; 12. Compressor; 13. Water tray;

[0042] 2. Heat exchanger; 21. Heat exchange tube; 211. Straight flat tube; 212. Bent flat tube; 22. First heat dissipation fin assembly; 23. Heat dissipation fin; 24. Second heat dissipation fin assembly; 25. First protective plate; 251. First side plate; 252. First bend; 261. First liquid collecting pipe; 262. Second liquid collecting pipe; 27. Third heat dissipation fin assembly; 28. Second protective plate; 281. Second side plate; 282. Second bend;

[0043] 3. Fan assembly; 301. Fan cavity; 302. Receiving cavity; 31. Fan housing; 311. Extension plate; 312. First fixing part; 313. Buckle; 314. Spring buckle; 315. Second fixing part; 316. First side spring buckle; 32. Fan wheel;

[0044] 4. Covering components. Detailed Implementation

[0045] This utility model provides a refrigeration device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0046] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The refrigeration device in the embodiments of the present invention can be a freezer, refrigerator, or other refrigeration cabinet. The following uses a refrigerator as an example to describe in detail the improved technical solution of the refrigeration device in the embodiments of the invention.

[0049] The refrigeration device in the embodiments of the present invention can be a freezer, refrigerator, or other refrigeration cabinet. The following uses a refrigerator as an example to describe in detail the improved technical solution of the refrigeration device in the embodiments of the invention.

[0050] Figure 1 This is a schematic diagram of a refrigeration device according to an embodiment of this application.

[0051] like Figure 1 As shown, the refrigerator provided in this embodiment of the present invention includes a cabinet 1. The cabinet 1 can adopt a hollow structure such as a cuboid. The cabinet 1 forms the outer shell of the refrigeration device. It should be noted that the cabinet 1 can also adopt a hollow shell structure of other shapes.

[0052] In some embodiments, the interior of the housing 1 forms a refrigeration chamber (not shown in the figure). Multiple refrigeration chambers may be provided.

[0053] In some embodiments, multiple refrigeration compartments can serve as independent storage spaces, such as freezers, refrigerators, and variable-temperature compartments, to meet different refrigeration needs, such as freezing, refrigeration, and variable-temperature storage, depending on the type of food, and to store items that require refrigeration or freezing. Multiple refrigeration compartments can be arranged vertically or horizontally.

[0054] In some embodiments, the refrigeration device may include a liner (not shown in the figures). The liner may be disposed within the housing 1. A refrigeration compartment may be formed within the liner.

[0055] like Figure 1 As shown, in some embodiments, the refrigeration unit includes a door 11. The door 11 is located on the front side of the housing 1 for opening and closing the refrigeration compartment.

[0056] It should be noted that, as Figure 1 As shown, multiple doors 11 can be installed. Each door 11 can be configured to correspond one-to-one with a refrigeration room. Multiple doors 11 can open and close a single refrigeration room simultaneously. A single door 11 can also open and close multiple refrigeration rooms simultaneously.

[0057] Figure 2 for Figure 1 A diagram of the back of the building; Figure 3 for Figure 2 A schematic diagram of the medium-pressure compressor compartment.

[0058] like Figure 2 and Figure 3 As shown, in some embodiments, the refrigeration system may include a heat exchanger 2. The heat exchanger 2 may be disposed inside the housing 1. The heat exchanger 2 contains refrigerant, which is used to exchange heat with the air inside the housing 1.

[0059] like Figure 3 As shown, in some embodiments, the heat exchanger 2 can be configured as a condenser for a refrigeration system. The housing 1 may include a compressor compartment 101, and the condenser may be located within the compressor compartment 101. The condenser receives the refrigerant flowing out of the compressor 12, cooling the high-temperature, high-pressure refrigerant gas from the compressor 12 and converting it into a liquid state. The condenser transfers heat from the refrigerant to the surrounding air, lowering the temperature of the refrigerant.

[0060] In some embodiments, the refrigeration system may include a throttling device (not shown). A condenser can deliver condensed refrigerant to the throttling device. The throttling device may be a capillary tube. The throttling device can be used to reduce the pressure of the refrigerant.

[0061] In some embodiments, heat exchanger 2 can be configured as an evaporator in a refrigeration system. A throttling device delivers the throttled and depressurized refrigerant to the evaporator. The evaporator is used for the refrigerant vapor to evaporate and boil, thereby absorbing heat from the surrounding medium.

[0062] In some embodiments, the compressor 12, condenser, throttling device, and evaporator can be connected in sequence to form a refrigeration circuit. The refrigerant can circulate within the refrigeration circuit to achieve refrigeration of the interior of the housing 1.

[0063] It should be noted that the following describes the improved technical solution of the heat exchanger 2 in this embodiment of the present invention in detail, taking the heat exchanger 2 as an example configured as a condenser.

[0064] Figure 4for Figure 3 Schematic diagram of the intermediate heat exchanger; Figure 5 for Figure 4 An exploded image.

[0065] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchange tube 21 includes a straight flat tube 211. The straight flat tube 211 may extend along the length direction of the heat exchanger 2. Multiple straight flat tubes 211 may be provided. Multiple straight flat tubes 211 are spaced apart along the height direction of the heat exchanger 2.

[0066] It should be noted that the height of heat exchanger 2 can be aligned with the height of the refrigeration unit. For example... Figure 4 As shown in the figure, H indicates the height direction of heat exchanger 2, and L indicates the length direction of the straight flat tube.

[0067] The channels within the straight flat tube 211 are used for refrigerant flow. Compared to traditional round tubes, the straight flat tube 211 has a larger surface area for the same external dimensions, which is more conducive to heat exchange with air and thus effectively improves the overall heat exchange performance of the heat exchanger 2.

[0068] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchange tube 21 includes a bent flat tube 212. Multiple bent flat tubes 212 can be provided. Multiple bent flat tubes 212 are connected between two adjacent straight flat tubes 211. By providing bent flat tubes 212 between adjacent straight flat tubes 211, the bent flat tubes 212 serve to connect and guide the flow. The bent flat tubes 212 connect the various straight flat tubes 211 into a continuous refrigerant channel, allowing the refrigerant to flow smoothly throughout the heat exchanger 2. Simultaneously, the bending shape of the bent flat tubes 212 can guide the flow direction of the refrigerant, increasing the flow path length of the refrigerant within the heat exchanger 2 and improving heat exchange efficiency.

[0069] like Figure 4 As shown, in some embodiments, the heat exchange tube 21 may include a first heat dissipation fin group 22. The first heat dissipation fin group 22 includes a plurality of heat dissipation fins 23 arranged sequentially along the length direction of the straight flat tube 211. Multiple first heat dissipation fin groups 22 may be provided. Multiple groups of first heat dissipation fin groups 22 are provided between adjacent straight flat tubes 211.

[0070] In this first heat dissipation fin group 22, multiple heat dissipation fins 23 are arranged sequentially along the length of the straight flat tube 211, that is, multiple heat dissipation fins 23 are arranged along the extension direction of the straight flat tube 211, and the first heat dissipation fin group 22 has multiple groups, which are arranged between adjacent straight flat tubes 211. By setting the heat dissipation fins 23, the surface area of ​​the heat exchange tube 21 in contact with the air can be increased, making it easier for heat to be transferred from the refrigerant to the air, thereby improving the heat exchange efficiency of the condenser and thus improving the refrigeration performance of the refrigeration device.

[0071] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchange tube 21 may include a second heat dissipation fin assembly 24. The second heat dissipation fin assembly 24 may include a plurality of heat dissipation fins 23 arranged sequentially along the length direction of the straight flat tube 211. The second heat dissipation fin assembly 24 is disposed at the top of the heat exchange tube 21 and above the top of the straight flat tube 211.

[0072] The second heat dissipation fin group 24 also includes multiple heat dissipation fins 23, which are disposed on the top of the heat exchange tube 21 and are located above the top straight flat tube 211 of the heat exchange tube 21, so that the top straight flat tube 211 can also effectively exchange heat with the outside.

[0073] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchange tube 21 may include a first protective plate 25. The first protective plate 25 is fixed to the top of the heat exchange tube 21 and disposed above the top of the second heat dissipation fin assembly 24. By providing the first protective plate 25 on the top of the heat exchange tube 21 and above the top of the second heat dissipation fin assembly 24, the first protective plate 25 can protect the heat exchange tube 21 and the second heat dissipation fin assembly 24 below it, preventing the heat dissipation fins 23 from being pressed down and flattened due to collisions, squeezing, or other operations during installation.

[0074] Specifically, since the first heat dissipation fin group 22 is located at the interval between any adjacent straight flat tubes 211, the straight flat tubes 211 on both sides of it can play a good protective role for the heat dissipation fins 23 in the first heat dissipation fin group 22. However, the second heat dissipation fin group 24 located on the outside is easily pressed down during the installation and use process, which not only affects the heat exchange efficiency of the condenser, but also reduces the condenser installation efficiency of the refrigeration device.

[0075] Since external forces may act on the second heat dissipation fin assembly 24 during installation or use, this application addresses this by placing a first protective plate 25 on top of the heat exchange tube 21 and above the second heat dissipation fin assembly 24. The first protective plate 25 shields the outside of the second heat dissipation fin assembly 24, preventing these external forces from directly acting on the heat dissipation fins 23. This prevents the heat dissipation fins 23 from being pressed down during installation due to collisions, squeezing, or other operations, effectively protecting the integrity of the heat dissipation fins 23 and ensuring their normal heat exchange function. This not only improves the heat exchange efficiency of the condenser and avoids the problem of decreased heat exchange performance due to the heat dissipation fins 23 collapsing, but also reduces the maintenance and replacement work required due to damage to the heat dissipation fins 23, lowering maintenance costs and improving the installation efficiency and service life of the condenser in the refrigeration unit. Furthermore, the first protective plate 25 can serve as a positioning and support component for the heat exchanger 2, facilitating accurate installation of the heat exchanger 2 into the housing 1 of the refrigeration unit without damaging the heat dissipation fins 23.

[0076] In some embodiments, the first protective plate 25 can be fixed to the top of the second heat dissipation fin assembly 24 by welding, thereby improving the connection stability between the two.

[0077] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchanger 2 may include a first side plate 251. The first side plate 251 extends downward from one end of the first protective plate 25 along its length. The first side plate 251 is disposed on the side of the plurality of bent flat tubes 212 away from the straight flat tubes 211, and the first side plate 251 is fixedly connected to the bent flat tubes 212.

[0078] It should be noted that the length direction of the first protective plate 25 can be the same as the length direction of the straight flat tube 211. The first side plate 251 is bent downward from one end of the length direction of the first protective plate 25, so that the first side plate 251 can be arranged to extend along the height direction of the heat exchanger 2, thereby providing protection for the side of the multiple bent flat tubes 212 away from the straight flat tube 211.

[0079] Specifically, the first side plate 251 can be fixedly connected to multiple bent flat tubes 212 respectively, providing protection for the side of the heat exchanger 2 and thus enhancing the structural stability of the heat exchanger 2 in the height direction. At the same time, in conjunction with the function of the first protective plate 25, it can increase the structural stability of the heat exchanger 2 in the length and height directions, providing protection for the first heat dissipation fin assembly 22 and the multiple straight flat tubes 211 arranged along the height direction in the heat exchanger 2, reducing the possibility of deformation, damage or displacement of the heat exchanger 2 components due to vibration, collision or other factors during transportation, installation and use.

[0080] Furthermore, the first side plate 251 can serve as a positioning and support component for the installation of the heat exchanger 2, making it convenient for operators to accurately install the heat exchanger 2 into the housing 1 of the refrigeration unit without damaging the heat dissipation fins 23.

[0081] In some embodiments, the first side plate 251 can be welded and fixed to a plurality of bent flat tubes 212 on the same side.

[0082] like Figure 4 As shown, in some embodiments, the first side plate 251 can be integrally formed with the first protective plate 25. It should be noted that in other embodiments, the first side plate 251 can also be separately set from the first protective plate 25 and then fixed by welding or other methods.

[0083] like Figure 4 As shown, in some embodiments, the heat exchanger 2 may include a first liquid collecting pipe 261. The first liquid collecting pipe 261 is disposed at the top of the heat exchange tube 21 and is connected to one end of a straight flat tube 211 located at the top of the heat exchange tube 21. The end of the first protective plate 25 away from the first side plate 251 may be bent to form a first bend 252, which is arranged around the outer periphery of the first liquid collecting pipe 261.

[0084] It should be noted that the first liquid collection pipe 261 can be used to connect the straight flat pipe 211 or the bent flat pipe 212 of the heat exchanger 2 and the circular pipe channel of the refrigeration system, so that the refrigerant in the circular pipe channel of the refrigeration system can flow into the flat pipe of the heat exchanger 2, or flow out of the straight circular pipe channel from the flat pipe of the heat exchanger 2.

[0085] Specifically, by bending the end of the first protective plate 25 away from the first side plate 251 to form a first bend 252, and by fitting the first bend 252 into the first liquid collecting pipe 261, the operator can directly wrap the first bend 252 around the first liquid collecting pipe 261 during installation, thereby quickly positioning and installing the first protective plate 25 and the first liquid collecting pipe 261, improving the convenience and efficiency of installation. Moreover, the first bend 252, wrapped around the outer periphery of the first liquid collecting pipe 261, can form an interconnected and mutually supportive structure between the first protective plate 25, the first side plate 251, and the first liquid collecting pipe 261, preventing the first liquid collecting pipe 261 from being squeezed and damaged by the second heat dissipation fin group 24 at the top and the multiple second heat dissipation fin groups 24 arranged along the height during operation or installation.

[0086] In some embodiments, the heat exchanger 2 may include a third heat dissipation fin assembly 27. The third heat dissipation fin assembly 27 includes a plurality of heat dissipation fins 23 arranged sequentially along the length of the straight flat tube 211. A second heat dissipation fin assembly 24 is disposed at the bottom of the heat exchange tube 21 and below the bottom of the straight flat tube 211.

[0087] The third heat dissipation fin group 27 also includes multiple heat dissipation fins 23. These heat dissipation fins 23 are disposed at the bottom of the heat exchange tube 21 and are located below the bottom straight flat tube 211 of the heat exchange tube 21, so that the straight flat tube 211 located below can also effectively exchange heat with the outside.

[0088] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchanger 2 may include a second protective plate 28. The second protective plate 28 is fixed to the bottom of the heat exchange tube 21 and disposed below the bottom of the third heat dissipation fin assembly 27.

[0089] Since the third heat dissipation fin group 27 is located outside the heat exchange tube 21, external forces may act on it during installation or use. A second protective plate 28 is provided at the bottom of the heat exchange tube 21 and below the bottom of the second heat dissipation fin group 24. The second protective plate 28 protects the heat exchange tube 21 and the third heat dissipation fin group 27 above it, preventing the heat dissipation fins 23 from being pressed down due to collisions or squeezing during installation. This effectively protects the integrity of the heat dissipation fins 23 and ensures they can function properly for heat exchange. Furthermore, the second protective plate 28 serves as a positioning and support component for the heat exchanger 2, facilitating accurate installation of the heat exchanger 2 into the housing 1 of the refrigeration unit without damaging the heat dissipation fins 23.

[0090] Furthermore, since the heat exchanger 2 is provided with a second heat dissipation fin group 24 and a third heat dissipation fin group 27 on its upper and lower sides respectively, and a first protective plate 25 is fixedly installed on the outer side of the second heat dissipation fin group 24 and a second protective plate 28 is fixedly installed on the outer side of the third heat dissipation fin group 27, it effectively supports and protects the second heat dissipation fin group 24, which is located at the top of the heat exchanger 2 and is prone to collapse, as well as the third heat dissipation fin group 27, which is located at the bottom of the heat exchanger 2 and is prone to collapse.

[0091] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchanger 2 may include a second side plate 281. The second side plate 281 extends upward from one end of the second protective plate 28 along its length. The second side plate 281 and the first side plate 251 are respectively disposed on opposite sides of the heat exchanger 2. The second side plate 281 is disposed on the side of the plurality of bent flat tubes 212 away from the straight flat tubes 211 and the second side plate 281 is fixedly connected to the bent flat tubes 212.

[0092] It should be noted that the length direction of the second protective plate 28 can be the same as the length direction of the straight flat tube 211. The first side plate 251 is bent upward from one end of the length direction of the second protective plate 28, so that the second side plate 281 can be extended along the height direction of the heat exchanger 2, thereby providing protection for the side of the multiple bent flat tubes 212 away from the straight flat tube 211.

[0093] Specifically, the second side plate 281 and the first side plate 251 are respectively disposed on opposite sides of the heat exchanger 2, and the first protective plate 25 and the second protective plate 28 can be disposed on opposite upper and lower sides of the heat exchanger 2.

[0094] The second side plate 281 can be fixedly connected to multiple bent flat tubes 212, providing protection for the other side of the heat exchanger 2 and thus enhancing the structural stability of the heat exchanger 2 in the height direction. Simultaneously, in conjunction with the second protective plate 28, it increases the structural stability of the heat exchanger 2 in both the length and height directions, protecting the second heat dissipation fin assembly 24 and the multiple straight flat tubes 211 arranged along the height direction. This reduces the possibility of deformation, damage, or displacement of the heat exchanger 2 components due to vibration, collision, or other factors during transportation, installation, and use.

[0095] Furthermore, the second side plate 281 can serve as a positioning and support component for the installation of the heat exchanger 2, making it convenient for operators to accurately install the heat exchanger 2 into the housing 1 of the refrigeration unit without damaging the heat dissipation fins 23.

[0096] In some embodiments, the second side plate 281 can be welded and fixed to a plurality of bent flat tubes 212 on the same side.

[0097] like Figure 5 As shown, in some embodiments, the second side plate 281 can be integrally formed with the second protective plate 28. It should be noted that in other embodiments, the second side plate 281 can also be separately set from the second protective plate 28 and then fixed by welding or other methods.

[0098] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchanger 2 may include a second liquid collecting pipe 262. The second liquid collecting pipe 262 is located at the bottom of the heat exchange tube 21 and is connected to one end of a straight flat tube 211 located at the top of the heat exchange tube 21.

[0099] It should be noted that the second liquid collection pipe 262 can be used to connect the straight flat pipe 211 or the bent flat pipe 212 of the heat exchanger 2 with the round pipe channel of the refrigeration system, so that the refrigerant in the round pipe channel of the refrigeration system can flow into the flat pipe of the heat exchanger 2, or flow out of the straight round pipe channel from the flat pipe of the heat exchanger 2.

[0100] Specifically, one of the first liquid collecting pipe 261 and the second liquid collecting pipe 262 can be located at the liquid inlet end of the heat exchanger 2, and the other of the first liquid collecting pipe 261 and the second liquid collecting pipe 262 can be located at the liquid outlet end of the heat exchanger 2.

[0101] like Figure 4 and Figure 5 As shown, in some embodiments, the end of the second protective plate 28 away from the second side plate 281 can be bent to form a second bend 282, which is arranged around the outer periphery of the first liquid collection pipe 261.

[0102] Specifically, by bending the end of the second protective plate 28 away from the second side plate 281 to form a second bend 282, and by fitting the second bend 282 into the second liquid collecting pipe 262, the operator can directly wrap the second bend 282 around the second liquid collecting pipe 262 during installation, thereby quickly positioning and installing the second protective plate 28 and the second liquid collecting pipe 262, improving the convenience and efficiency of installation. Furthermore, the second bend 282, wrapped around the outer periphery of the second liquid collecting pipe 262, allows the second protective plate 28, the second side plate 281, and the second liquid collecting pipe 262 to form an interconnected and mutually supportive structure, preventing the second liquid collecting pipe 262 from squeezing and damaging the top third heat dissipation fin group 27 and the multiple third heat dissipation fin groups 27 arranged along the height during operation or installation.

[0103] Figure 6 This is a schematic diagram of the integrated installation of the fan assembly and heat exchanger. Figure 7 This is a schematic diagram of the fan casing; Figure 8 for Figure 6 An exploded image.

[0104] like Figure 6 As shown, in some embodiments, the refrigeration device may include a fan assembly 3. The fan assembly 3 may be configured as a cooling fan for the condenser, used to dissipate heat from the heat exchanger 2 described above.

[0105] like Figure 6 and Figure 8 As shown, in some embodiments, the fan assembly 3 may include a fan housing 31 and a fan impeller 32. The fan housing 31 is disposed within the housing 1. The fan housing 31 has a communicating fan chamber 301 and a receiving chamber 302. The fan impeller 32 is disposed within the fan chamber 301. The heat exchanger 2 is disposed within the receiving chamber 302, and the heat exchanger 2 is arranged at a distance from the fan impeller 32 along the axial direction of the fan impeller 32.

[0106] In the fan assembly 3, the heat exchanger 2 is arranged at intervals relative to the impeller 32 along the axial direction of the impeller 32. When the impeller 32 rotates, it will generate a strong suction in the fan cavity 301, which will quickly draw the air outside or inside the housing 1 into the fan cavity 301 and force it to blow towards the heat exchanger 2. In this way, the air can fully contact the heat dissipation fins 23 on the surface of the heat exchanger 2, which greatly improves the heat exchange efficiency between the air and the refrigerant.

[0107] In this embodiment, by providing a fan chamber 301 and a receiving chamber 302 in the fan housing 31, the impeller 32 and the heat exchanger 2 are respectively integrated into the corresponding chambers, thereby integrating the fan assembly 3 with the heat exchanger 2. On the one hand, this improves the space utilization rate inside the refrigeration device, making the overall structure of the refrigeration device more compact. More importantly, during the transportation and installation of the refrigeration device, shaking and collisions are inevitable. The fan housing 31 can serve as an external protective structure for the heat exchanger 2, capable of withstanding a certain degree of external impact, thus preventing the heat dissipation fins 23 in the heat exchanger 2 from being directly impacted and deformed, collapsed, or even broken. By integrating the fan assembly 3 with the heat exchanger 2, and in conjunction with the aforementioned structure of the first protective plate 25 and the second protective plate 28, the heat dissipation fins 23 can be protected more reliably.

[0108] like Figure 6 and Figure 8 As shown, in some embodiments, the first protective plate 25, the first side plate 251, the second protective plate 28, and the second side plate 281 can be arranged sequentially around the outer peripheral wall of the heat exchanger 2 in the circumferential direction. The first protective plate 25, the first side plate 251, the second protective plate 28, and the second side plate 281 can be arranged sequentially along the peripheral side wall of the accommodating cavity 302.

[0109] Specifically, the first protective plate 25, the first side plate 251, the second protective plate 28, and the second side plate 281 are not only installed on the outer peripheral wall of the heat exchanger 2, but also arranged sequentially along the peripheral side wall of the accommodating cavity 302. This can effectively protect the heat exchanger 2 from all directions and effectively resist collisions and compressions from all directions. Whether it is an accidental collision that may occur during installation, transportation, or refrigeration, or under the action of external forces such as tools and equipment in the usage environment, the protective structure composed of the first protective plate 25, the first side plate 251, the second protective plate 28, and the second side plate 281 can effectively block and protect the heat dissipation fins 23 and the flat tube from damage.

[0110] In some other embodiments, the first protective plate 25, the first side plate 251, the second protective plate 28, and the second side plate 281 can be integrally formed and can constitute a protective frame with a U-shaped structure.

[0111] like Figure 6 and Figure 8As shown, in some embodiments, a portion of the heat exchanger 2 may be disposed within the receiving cavity 302. Another portion of the heat exchanger 2 may protrude outside the receiving cavity 302. An extension plate 311 protrudes from the bottom peripheral edge of the receiving cavity 302 toward the side away from the fan. The extension plate 311, protruding from the bottom peripheral edge of the receiving cavity 302 toward the side away from the fan, can support the bottom of the heat exchanger 2.

[0112] Figure 9 for Figure 6 A cross-sectional view; Figure 10 for Figure 9 A magnified view of part A.

[0113] like Figure 7 , Figure 9 and Figure 10 As shown, the extension plate 311 may be provided with buckles 313 spaced apart along the axial direction of the fan. A first fixing part 312 is provided inside the fan housing 31, and the first fixing part 312 and the buckles 313 are spaced apart and opposite each other along the axial direction of the impeller 32. The first fixing part 312 is located on the side of the buckles 313 closer to the impeller 32. Thus, the first fixing part 312 and the buckles 313 are spaced apart, allowing the second protective plate 28 to be clamped between the first fixing part 312 and the buckles 313.

[0114] A spring clip 314 may protrude from the top periphery of the accommodating cavity 302, facing away from the fan. A second fixing part 314 may be provided inside the fan housing 31. The second fixing part 314 and the spring clip 314 are spaced apart and opposite each other along the axial direction of the impeller 32. The second fixing part 314 is located on the side of the spring clip 314 near the impeller 32. In this way, by providing a spring clip 314 protruding from the top periphery of the accommodating cavity 302, the first protective plate 25 above the heat exchanger 2 can be fixed, so that the first protective plate 25 can be clamped between the spring clip 314 and the second fixing part 314.

[0115] When the heat exchanger 2 is installed inside the fan casing 31, the second protective plate 28 can be snapped between the buckle 313 and the first fixing part 312, and the first protective plate 25 is snapped between the spring buckle 314 and the second fixing part 314.

[0116] Specifically, during the installation of the heat exchanger 2 on the fan casing 31, the bottom of the heat exchanger 2 can be first secured between the first fixing part 312 and the buckle 313. Then, the top of the heat exchanger 2 can be rotated so that it can extend into the fan casing 31. At this time, the main stress-bearing part of the heat exchanger 2 is at the bottom. In this embodiment, by securing the second protective plate 28 between the buckle 313 and the first fixing part 312, the third heat dissipation fin assembly 27 at the bottom is supported, reducing the direct impact of external forces on the third heat dissipation fins 23 during installation and preventing damage.

[0117] Furthermore, since the spring clips 314 protruding from the top periphery of the accommodating cavity 302 have a certain degree of elasticity, the operator can bend the spring clips 314 to induce a certain elastic deformation, thereby reducing the impact force on the second heat exchange fins during installation. Moreover, when the heat exchanger 2 is pushed into the accommodating cavity 302 and engages with the spring clips 314, the spring clips 314 will undergo a certain degree of elastic deformation and engage with the first protective plate 25. When the heat exchanger 2 is installed in place, the first protective plate 25 is engaged between the spring clips 314 and the second fixing part 314. The first protective plate 25 can protect the second heat dissipation fin group 24 at the top, reducing the direct impact of external forces on the second heat dissipation fins 23 during installation and preventing damage.

[0118] like Figure 10 As shown, in some embodiments, the first fixing part 312 can be arranged directly opposite the buckle 313 on the side near the wind turbine 32. It should be noted that in other embodiments, the first fixing part 312 can be arranged offset on the side of the buckle 313 near the wind turbine 32.

[0119] like Figure 7 and Figure 8 As shown, in some embodiments, the extension plate 311 may be provided with two or more latches 313 at intervals. Correspondingly, the fan housing 31 may be provided with a plurality of first fixing parts 312.

[0120] like Figure 7 and Figure 8 As shown, in some embodiments, the fan housing 31 may be provided with a first side spring clip 316. The first side spring clip 316 may protrude from the peripheral edge of the receiving cavity 302 toward the side away from the fan. The first side spring clip 316 can be engaged with the first side plate 251, which can further reinforce the installation of the heat exchanger 2 and the fan housing 31.

[0121] In some embodiments, the fan housing 31 may be provided with a second side spring clip (not shown in the figure). The second side spring clip may protrude from the peripheral edge of the receiving cavity 302 toward the side away from the fan. The second side spring clip may be arranged opposite to the first side spring clip 316, with the first side spring clip 316 and the second side spring clip respectively located on opposite sides of the heat exchanger 2. The second side spring clip may engage with the second side plate 281, which can further reinforce the installation of the heat exchanger 2 and the fan housing 31.

[0122] like Figure 10As shown, in some embodiments, each heat dissipation fin 23 in the first heat dissipation fin group 22, the second heat dissipation fin group 24, and the third heat dissipation fin group 27 extends along the thickness direction of the heat exchanger 2. The length of the heat dissipation fin 23 can be greater than the width of the straight flat tube 211 in the thickness direction of the heat exchanger 2. One end of the heat dissipation fin 23 is flush with one end of the straight flat tube 211, and the other end of the heat dissipation fin 23 extends beyond the other end of the straight flat tube 211.

[0123] When the heat exchanger 2 is installed inside the fan casing 31, the end of the straight flat tube 211 that is flush with the heat dissipation fins 23 is located on the side of the heat exchanger 2 near the buckle 313, and the end of the straight flat tube 211 that protrudes outside the straight flat tube 211 is located on the side of the heat exchanger 2 near the impeller 32.

[0124] It should be noted that the thickness direction of heat exchanger 2 is consistent with the width direction of the straight flat tube 211. When heat exchanger 2 is installed inside the fan casing 31, the thickness direction of heat exchanger 2 can also be consistent with the axial direction of the impeller 32. Please refer to the appendix. Figure 10 In the figure, W indicates the thickness direction of heat exchanger 2.

[0125] Specifically, such as Figure 9 and Figure 10 As shown, each heat dissipation fin 23 in the first heat dissipation fin group 22, the second heat dissipation fin group 24, and the third heat dissipation fin group 27 extends along the thickness direction of the heat exchange tube 21. One end of the heat dissipation fin 23 is flush with one end of the straight flat tube 211 in the width direction, and the other end of the heat dissipation fin 23 extends beyond the other end of the straight flat tube 211 in the width direction. Thus, the length of the heat dissipation fin 23 is greater than the width of the straight flat tube 211 in the thickness direction of the heat exchanger 2, thereby increasing the heat dissipation area of ​​the heat exchanger 2. This allows for more thorough heat exchange in the heat exchanger 2, increases the contact area and contact time between the airflow and the heat dissipation fin 23, and effectively improves the heat exchange efficiency.

[0126] Since the heat dissipation fins 23 that extend beyond the straight flat tube 211 are easily deformed or damaged by force, the first protective plate 25, the second protective plate 28, the first side plate 251 or the second side plate 281 that are wrapped around the outside of the heat exchanger 2 can effectively protect the heat dissipation fins 23.

[0127] During installation, the bottom of the heat exchanger 2, near the clip 313, serves as the primary stress-bearing end. However, because the end of the straight flat tube 211 protrudes beyond it, and there is a gap between the heat dissipation fins 23 and the adjacent flat tube, the end of the heat dissipation fins 23 extending beyond the straight flat tube 211 is more susceptible to stress, leading to deformation, collapse, or other damage. By placing the end of the straight flat tube 211 flush with the heat dissipation fins 23 on the side of the heat exchanger 2 near the clip 313, and placing the end of the heat dissipation fins 23 protruding beyond the straight flat tube 211 on the side of the heat exchanger 2 near the impeller 32, when the heat exchanger 2 is first inserted into the first fixing part 312 and the clip 313, the end of the straight flat tube 211 flush with the heat dissipation fins 23 serves as the primary stress-bearing end, thus avoiding damage to the end of the heat dissipation fins 23 protruding beyond the straight flat tube 211 during installation. In this way, the structural integrity of the heat exchanger 2 can be effectively improved during the installation process, and damage to the heat dissipation fins 23 can be avoided.

[0128] Please return to the reference. Figure 2 and Figure 3 In some embodiments, a water receiving tray 13 is provided inside the compressor chamber 101. The fan housing 31 may be located above the water receiving tray 13. The refrigeration device may include a shielding member 4, which may be located between the fan housing 31 and the bottom wall of the water receiving tray 13, thereby shielding the space between the fan housing 31 and the bottom wall of the water receiving tray 13.

[0129] The heat exchanger 2 can be located inside the compressor compartment 101 and above the water receiving pan 13. When the fan 32 starts, the airflow can first flow through the water receiving pan 13 and then blow onto the condenser, thus improving the heat dissipation efficiency of the heat exchanger 2 when it acts as a condenser. Furthermore, by placing the shielding member 4 between the fan casing 31 and the bottom wall of the water receiving pan 13, the space between the two can be effectively blocked, allowing the airflow to flow through the condenser as much as possible, thereby effectively improving the heat exchange efficiency of the condenser.

[0130] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of this application is limited only by the appended claims.

Claims

1. A refrigeration apparatus, characterized by comprising: include: The housing forms the outer shell of the refrigeration device; The heat exchanger is located inside the casing; The heat exchanger includes: Heat exchange tube, the heat exchange tube comprising: Straight flat tubes are arranged to extend along the length of the heat exchanger, and multiple straight flat tubes are provided, with the multiple straight flat tubes spaced apart along the height of the heat exchanger. A bent flat tube, wherein multiple bent flat tubes are provided, and multiple bent flat tubes are connected between two adjacent straight flat tubes; The first heat dissipation fin group includes a plurality of heat dissipation fins arranged sequentially along the length direction of the straight flat tube. The first heat dissipation fin group is provided in multiple groups, and the multiple groups of the first heat dissipation fin group are arranged between adjacent straight flat tubes. The second heat dissipation fin group includes a plurality of heat dissipation fins arranged sequentially along the length direction of the straight flat tube. The second heat dissipation fin group is located at the top of the heat exchange tube and above the top of the straight flat tube. The first protective plate is fixed to the top of the heat exchange tube and is located above the top of the second heat dissipation fin assembly.

2. The refrigeration device according to claim 1, characterized in that, The heat exchanger also includes a first side plate, which extends downward from one end of the first protective plate along its length. The first side plate is located on the side of the plurality of bent flat tubes away from the straight flat tubes, and the first side plate is fixedly connected to the bent flat tubes.

3. The refrigeration device according to claim 2, characterized in that, The heat exchanger includes a first liquid collecting pipe, which is located at the top of the heat exchange tube and is connected to one end of the straight flat tube located at the top of the heat exchange tube. The end of the first protective plate away from the first side plate is bent to form a first bend, and the first bend is arranged around the outer periphery of the first liquid collecting pipe.

4. The refrigeration device according to claim 3, characterized in that, The heat exchanger further includes a third heat dissipation fin group, which includes a plurality of heat dissipation fins arranged sequentially along the length of the straight flat tube. The second heat dissipation fin group is located at the bottom of the heat exchange tube and below the bottom of the straight flat tube. The heat exchanger also includes a second protective plate, which is fixed to the bottom of the heat exchange tube and located below the bottom of the third heat dissipation fin assembly.

5. The refrigeration device according to claim 4, characterized in that, The heat exchanger also includes a second side plate, which extends upward from one end of the second protective plate along its length. The second side plate and the first side plate are respectively disposed on opposite sides of the heat exchanger. The second side plate is disposed on the side of the plurality of bent flat tubes away from the straight flat tubes, and the second side plate is fixedly connected to the bent flat tubes.

6. The refrigeration device according to claim 5, characterized in that, The heat exchanger includes a second liquid collecting pipe, which is located at the bottom of the heat exchange tube and is connected to one end of the straight flat tube located at the top of the heat exchange tube. The end of the second protective plate away from the second side plate is bent to form a second bend, which is arranged around the outer periphery of the first liquid collection pipe.

7. The refrigeration device according to claim 5, characterized in that, The refrigeration device further includes a fan assembly, which comprises: A fan housing is disposed within the box body. The fan housing has a fan cavity and a receiving cavity, and the fan cavity and the receiving cavity are connected. The impeller is located inside the fan cavity; The heat exchanger is disposed within the accommodating cavity, and the heat exchanger is arranged at intervals relative to the impeller along the axial direction of the impeller.

8. The refrigeration device according to claim 7, characterized in that, The first protective plate, the first side plate, the second protective plate, and the second side plate are arranged sequentially around the outer peripheral wall of the heat exchanger in a circumferential direction. The first protective plate, the first side plate, the second protective plate, and the second side plate are arranged sequentially along the peripheral sidewall of the accommodating cavity.

9. The refrigeration device according to claim 8, characterized in that, A portion of the heat exchanger is disposed within the accommodating cavity, while another portion of the heat exchanger protrudes outside the accommodating cavity; An extension plate is provided on the bottom peripheral edge of the accommodating cavity, extending away from the fan. The extension plate is provided with buckles arranged at intervals along the axial direction of the fan. The wind turbine housing is provided with a first fixing part, which is spaced apart from the buckle along the axial direction of the wind turbine. The first fixing part is located on the side of the buckle closer to the wind turbine. The top periphery of the accommodating cavity is provided with a spring buckle protruding from the side away from the fan; The wind turbine housing is provided with a second fixing part, which is spaced apart from the spring buckle along the axial direction of the wind turbine. The second fixing part is located on the side of the spring buckle closer to the wind turbine. The second protective plate is engaged between the buckle and the first fixing part, and the first protective plate is engaged between the spring buckle and the second fixing part.

10. The refrigeration device according to claim 9, characterized in that, Each of the heat dissipation fins in the first heat dissipation fin group, the second heat dissipation fin group, and the third heat dissipation fin group extends along the thickness direction of the heat exchanger, and the length of the heat dissipation fin is greater than the width of the straight flat tube in the thickness direction of the heat exchanger; one end of the heat dissipation fin is flush with one end of the straight flat tube, and the other end of the heat dissipation fin extends beyond the other end of the straight flat tube. When the heat exchanger is installed inside the fan casing, the end of the straight flat tube that is flush with the heat dissipation fins is located on the side of the heat exchanger near the buckle, and the end of the straight flat tube that protrudes outside the straight flat tube is located on the side of the heat exchanger near the impeller.

11. A refrigeration apparatus characterized by comprising: include: The housing forms the outer shell of the refrigeration device; A heat exchanger, disposed within the housing, comprises: Heat exchange tube, the heat exchange tube comprising: Straight flat tubes are arranged to extend along the length of the heat exchanger, and multiple straight flat tubes are provided, with the multiple straight flat tubes spaced apart along the height of the heat exchanger. A bent flat tube, wherein multiple bent flat tubes are provided, and multiple bent flat tubes are connected between two adjacent straight flat tubes; The first heat dissipation fin group includes a plurality of heat dissipation fins arranged sequentially along the length direction of the straight flat tube. The first heat dissipation fin group is provided in multiple groups, and the multiple groups of the first heat dissipation fin group are arranged between adjacent straight flat tubes. The third heat dissipation fin group includes a plurality of heat dissipation fins arranged sequentially along the length of the straight flat tube. The third heat dissipation fin group is located at the bottom of the heat exchange tube and below the bottom of the straight flat tube. The second protective plate is fixed to the bottom of the heat exchange tube and is located below the bottom of the third heat dissipation fin assembly.

Images