Evaporator with anti-condensate leakage structure

Abstract

The present application relates to the technical field of refrigeration equipment, and discloses an evaporator with a condensate leakage prevention structure, which comprises two collecting pipes, a plurality of flat tubes are fixedly connected to the outer sides of the two collecting pipes, a leakage prevention mechanism is arranged on the outer side of the flat tube, a wind resistance adjusting mechanism is arranged on the outer side of the flat tube, a water inlet groove is formed in the inner side of the collecting pipe, a water outlet groove is formed in the inner side of the collecting pipe, and a distribution mechanism is arranged on the inner side of the collecting pipe; the leakage prevention mechanism comprises a plurality of magnetic fixing frames, and the magnetic fixing frames are fixedly connected to the outer sides of the collecting pipes. The water guide plate guides the condensate, and the condensate is introduced into the water absorbing cotton through the inverted conical water absorbing groove. When the condensate in the water collecting box is excessive, the water flows into the water storage tank by manually pressing the extrusion plate. Meanwhile, the magnetic connection structure can realize quick disassembly and maintenance of the water collecting box, effectively improving the leakage prevention performance and service life of the evaporator.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, specifically to an evaporator with a structure to prevent condensate leakage. Background Technology

[0002] Evaporators, as the core heat exchange component of refrigeration devices, are widely used in the air conditioning and refrigeration fields. The working principle of an evaporator is to use the evaporation of liquid low-temperature refrigerant under low pressure to absorb heat from the medium being cooled, thereby achieving the purpose of refrigeration. However, in actual operation, when the surface temperature of the evaporator is low, water vapor in the air will condense on the surface of the fins and flat tubes to form condensate. If this condensate cannot be effectively collected and guided, it will be blown out of the evaporator by the airflow, causing water drift. This not only affects the user experience but also leads to equipment damage, electrical short circuits, and bacterial growth.

[0003] To address the issue of condensate scattering, existing technologies employ methods such as increasing fin density, installing baffles, or applying hydrophilic coatings to intercept condensate. However, these leak-proof measures all have limitations to varying degrees, leading to increased airflow resistance. This results in complex flow-guiding structures causing poor drainage and maintenance difficulties, thus limiting the existing condensate leak-proof structures to varying degrees. In particular, long-term operational reliability, ease of maintenance, and anti-clogging properties require improvement and enhancement. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an evaporator with a condensate leakage prevention structure, which solves the problem of condensate leakage due to excessive accumulation on the evaporator surface.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: an evaporator with a condensate leakage prevention structure, comprising two manifolds, with multiple flat tubes fixedly connected to the outer sides of each manifold, a leakage prevention mechanism and a wind resistance adjustment mechanism provided on the outer sides of the flat tubes, a water inlet groove and an outlet groove provided on the inner side of the manifolds, and a distribution mechanism provided on the inner side of the manifolds; The leak-proof mechanism includes multiple magnetic fixing frames, each fixedly connected to the outside of the manifold. A water collection box is slidably connected to the inside of each magnetic fixing frame. Absorbent cotton is fixedly connected to the inside of each water collection box. A water guide plate is slidably connected to the inside of each water collection box. Multiple water absorption grooves are formed on the outside of each water guide plate. Two extrusion plates are slidably connected to the inside of each water collection box. A connecting shaft is fixedly connected to the outside of each extrusion plate. A guide shaft is fixedly connected to the outside of each connecting shaft. Two guide grooves are formed on the outside of each water collection box. The guide shafts are slidably connected to the inside of each guide groove.

[0006] Preferably, the wind resistance adjustment mechanism includes multiple heat dissipation frames, each fixedly connected to the outside of the manifold, with multiple water inlet grooves on the inner side of each heat dissipation frame, and multiple rotating balls fixedly connected to the inner side of each heat dissipation frame. Each of the adjacent sides of each rotating ball is rotatably connected to a support column, with two rotating slots on the outer side of each support column, and heat dissipation fins fixedly connected to the outer side of each support column. A memory alloy spring is fixedly connected to the bottom of each heat dissipation fin, and the other side of each memory alloy spring is obliquely fixedly connected to the inner side of the heat dissipation frame.

[0007] Preferably, the distribution mechanism includes a stepper motor, which is fixedly connected to the outside of the collector tube. The output end of the stepper motor passes through the outside of the collector tube and is fixedly connected to a bevel gear one. A rotating shaft is rotatably connected to the inside of the collector tube. A bevel gear two is fixedly connected to the top of the rotating shaft. Two helical blades are fixedly connected to the outside of the rotating shaft. The bevel gear one meshes with the bevel gear two.

[0008] Preferably, each of the multiple water collection boxes has two magnetic connecting blocks fixedly connected to its bottom, each of the multiple magnetic fixing frames has two guide shafts fixedly connected to its inner side, and each of the multiple water collection boxes has multiple guide grooves on its outer side, with the guide shafts slidably connected to the inner side of the guide grooves.

[0009] Preferably, the top of the plurality of water collection boxes is provided with a plurality of connecting grooves, and the inner side of each of the plurality of connecting grooves is fixedly connected with a connecting buckle, and the top of the plurality of water guide plates is provided with a plurality of limiting grooves.

[0010] Preferably, the bottom of each of the multiple water collection boxes is connected to a water guide hose, the other end of the water guide hose on the bottom side is fixedly connected to a water storage tank, and the top of the water storage tank is fixedly connected to a one-way vent valve.

[0011] Preferably, the plurality of water-absorbing grooves are all in the shape of an inverted frustum, and the plurality of water-absorbing grooves are evenly distributed on the top of the water guide plate.

[0012] Preferably, each of the multiple heat sink brackets has two connecting posts fixedly connected to its outer side, and each of the two manifolds has multiple connecting slots on its outer side.

[0013] Preferably, a positioning block is fixedly connected to the inner side of the water outlet tank, a plurality of elastic connecting columns are fixedly connected to the bottom end of the positioning block, and a positioning ball is fixedly connected to the other end of each of the plurality of elastic connecting columns. A positioning frame is fixedly connected to the middle of the outer side of the rotating shaft, and a positioning groove is opened on the outer side of the positioning frame. The plurality of positioning balls are slidably connected to the inner side of the positioning groove.

[0014] Preferably, a limiting post is fixedly connected to the middle of the outer side of the rotating shaft, and a limiting groove is formed on the inner side of the manifold.

[0015] This invention provides an evaporator with a structure to prevent condensate leakage. It has the following advantages: 1. This invention guides the condensate generated on the outside of the flat tube through a water guide plate, and uses an inverted frustum-shaped water absorption groove to quickly guide the condensate into the absorbent cotton to prevent condensate leakage. Then, the absorbent cotton is evenly compressed by manually operated squeezing plate to squeeze the condensate into the water storage tank to ensure thorough drainage. At the same time, when cleaning the water collection box, the magnetic connection between the magnetic fixing frame and the magnetic connecting block enables quick disassembly and maintenance, making the overall structure simple and reliable, and improving the evaporator's leak-proof performance and service life.

[0016] 2. This invention uses a shape memory alloy spring to sense temperature and automatically adjust the opening and closing degree of the heat dissipation fins. At low temperatures, the shape memory alloy spring contracts to close the fins, effectively intercepting condensate and preventing water drift. At normal temperatures, the spring extends to open the heat dissipation fins, reducing wind resistance and improving heat exchange efficiency. At the same time, the water inlet continuously guides the condensate to drain away quickly, preventing water accumulation on the fin surface. This makes the overall structure require no additional energy to drive, improving the evaporator's leak-proof performance and the adaptive adjustment of heat dissipation speed.

[0017] 3. This invention uses a stepper motor to drive the meshing connection between bevel gears to rotate the spiral blades. The curved surface of the spiral blades pushes the liquid refrigerant at the bottom of the manifold upward, breaking the gravity stratification and forcibly distributing the refrigerant evenly to each flat tube inlet. At the same time, the double stabilizing structure between the limiting post and the positioning ball ensures that the rotating shaft can run smoothly and also enhances the sealing performance. This effectively solves the problem of uneven refrigerant distribution and improves heat exchange efficiency. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the flat tube structure of the present invention; Figure 3This is a side view of the present invention; Figure 4 This is a schematic diagram of the structure of the magnetic fixing frame of the present invention; Figure 5 This is a split view of the absorbent cotton of the present invention; Figure 6 This is a cross-sectional view of the water collection box of the present invention; Figure 7 This is a schematic diagram of the connecting column of the present invention; Figure 8 This is a schematic diagram of the structure of the heat dissipation fins of the present invention; Figure 9 This is a cross-sectional view of the heat sink of the present invention; Figure 10 for Figure 9 Enlarged view of point A; Figure 11 This is a cross-sectional view of the manifold of the present invention; Figure 12 for Figure 11 Enlarged view of point B.

[0019] The components include: 1. Manifold; 2. Flat pipe; 3. Leakage prevention mechanism; 31. Magnetic fixing frame; 32. Water collection box; 33. Absorbent cotton; 34. Water guide plate; 35. Water absorption groove; 36. Extrusion plate; 37. Connecting shaft; 38. Guide shaft one; 39. Guide groove one; 310. Magnetic connecting block; 311. Guide shaft two; 312. Guide groove two; 313. Connecting buckle; 314. Connecting groove one; 315. Limiting groove one; 316. Water guide hose; 317. Water storage tank; 318. One-way exhaust valve; 4. Wind resistance adjustment mechanism; 1. Heat sink; 42. Water inlet channel; 43. Rotating ball; 44. Support column; 45. Rotating groove; 46. Heat sink fins; 47. Memory alloy spring; 48. Connecting column one; 49. Connecting groove two; 5. Water inlet channel; 6. Water outlet channel; 7. Distribution mechanism; 71. Stepper motor; 72. Bevel gear one; 73. Rotating shaft; 74. Bevel gear two; 75. Helical blade; 76. Positioning block; 77. Elastic connecting column; 78. Positioning ball; 79. Positioning frame; 710. Positioning groove; 711. Limiting column; 712. Limiting groove two. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see the appendix Figure 1 - Appendix Figure 6 This invention provides an evaporator with a condensate leakage prevention structure, including two manifolds 1, which serve as the main flow components for condensate. Multiple flat tubes 2 are fixedly connected to the outer sides of both manifolds 1, serving as condensate transfer components. A leakage prevention mechanism 3 is provided on the outer side of each flat tube 2 to prevent condensate leakage. A wind resistance adjustment mechanism 4 is provided on the outer side of each flat tube 2 to adjust wind resistance. An inlet groove 5 is provided on the inner side of each manifold 1, serving as the water inlet. An outlet groove 6 is provided on the inner side of each manifold 1, serving as the condensate outlet. A distribution mechanism 7 is provided on the inner side of each manifold 1 to ensure uniform distribution of condensate in the inlet groove 5 and the outlet groove 6. The leak-proof mechanism 3 includes multiple magnetic fixing frames 31, which support the water collection box 32. Each magnetic fixing frame 31 is fixedly connected to the outside of the manifold 1. The water collection box 32 is slidably connected to the inside of each magnetic fixing frame 31, and is used to collect the drained condensate. Absorbent cotton 33 is fixedly connected to the inside of each water collection box 32, and is used to absorb the condensate drained into the water collection box 32. Water guide plates 34 are slidably connected to the inside of each water collection box 32, guiding the flow of condensate. Multiple water suction grooves 35 are provided on the outside of each water guide plate 34. The water absorption groove 35 allows the condensate on the top of the water guide plate 34 to enter the absorbent cotton 33. Two squeezing plates 36 are slidably connected to the inner side of the multiple water collection boxes 32. The condensate in the absorbent cotton 33 flows out through the two adjacent squeezing plates 36. Connecting shafts 37 are fixedly connected to the outer side of the multiple squeezing plates 36. The connecting shafts 37 can facilitate the movement of the squeezing plates 36. Guide shafts 38 are fixedly connected to the outer side of the multiple connecting shafts 37. Two guide grooves 39 are opened on the outer side of the multiple water collection boxes 32. The guide shafts 38 are slidably connected to the inner side of the guide grooves 39. The guide shafts 38 and guide grooves 39 are used to guide the movement direction of the squeezing plates 36. Each of the multiple water collection boxes 32 has two magnetic connecting blocks 310 fixedly connected to its bottom. The magnetic connecting blocks 310 can magnetically connect with the magnetic fixing frame 31, thereby fixing the position of the water collection box 32. Each of the multiple magnetic fixing frames 31 has two guide shafts 311 fixedly connected to its inner side. Each of the multiple water collection boxes 32 has multiple guide grooves 312 on its outer side. The guide shafts 311 are slidably connected to the inner side of the guide grooves 312. The guide shafts 311 and guide grooves 312 fix the water collection box 32 to the inner side of the magnetic fixing frame 31. Each of the multiple water collection boxes 32 has multiple connecting grooves 314 on its top. Each of the multiple connecting grooves 314 has a connecting buckle 313 fixedly connected to its inner side. Each of the multiple water guide plates 34 has multiple limiting positions on its top. The first groove 315, through the connecting buckle 313, the connecting groove 314, and the limiting groove 315, fixes the water guide plate 34 to the inside of the water collection box 32. The bottom of the multiple water collection boxes 32 are all connected to the water guide hose 316, which is used to guide the squeezed condensate downward. The other end of the bottom water guide hose 316 is fixedly connected to the water storage tank 317, which is used to store the squeezed condensate. The top of the water storage tank 317 is fixedly connected to the one-way exhaust valve 318, which is used to discharge excess air when condensate flows into the water storage tank 317. The multiple water suction grooves 35 are all in the shape of an inverted frustum. The inverted frustum shape of the water suction grooves 35 can avoid being blocked by impurities. The multiple water suction grooves 35 are evenly distributed on the top of the water guide plate 34. Specifically, when the evaporator is working, the condensate generated on the surface of the flat tube 2 drips onto the top of the guide plate 34 under gravity and flows towards the water absorption groove 35 under the guidance of the guide plate 34. Since multiple water absorption grooves 35 are all inverted frustum-shaped, this structure, which is wider at the top and narrower at the bottom, can not only use capillary action to quickly guide the condensate into the absorbent cotton 33 below, but also effectively prevent dust particles from completely clogging the water absorption channel. Larger impurities will be stuck at the wide opening, allowing water to still seep in through the gaps. As the absorbent cotton 33 absorbs condensate and reaches saturation, it needs to be drained periodically. The operator manually pushes the connecting shaft 37, causing the connecting shaft 37 to drive the squeezing plate 36 to move along the direction defined by the guide shaft 38 and the guide groove 39. When two adjacent squeezing plates 36 move towards each other, they generate uniform squeezing force on the absorbent cotton 33 in the middle, squeezing out the condensate adsorbed inside the cotton body. The squeezed-out condensate flows to the collection basin under gravity. The water collection box 32 is located at the bottom and is guided downwards through the connected water guide hose 316. All the condensate squeezed out by the water collection box 32 eventually collects in the water storage tank 317 at the bottom. When water enters the water storage tank 317, the internal air is automatically discharged through the one-way exhaust valve 318 at the top to maintain the balance of internal and external air pressure. During the entire drainage process, the water collection box 32 is stably attracted and fixed to the magnetic fixing frame 31 through the magnetic connecting block 310 at the bottom. At the same time, the cooperation between the guide shaft 2 311 and the guide groove 2 312 ensures that the water collection box 32 does not shift when subjected to squeezing operation. When it is necessary to perform deep cleaning on the inside and outside of the water collection box 32 or replace the water absorbent cotton 33, the water collection box 32 can be removed from the magnetic fixing frame 31 by overcoming the magnetic force, and the water guide plate 34 can be removed by separating the connecting buckle 313 and the limiting groove 1 315. This speeds up the installation and removal of the water collection box 32 and can prevent the leakage of condensate generated on the surface of the flat tube 2.

[0022] Please see the appendix Figure 7 - Appendix Figure 10In a preferred embodiment of the present invention, the wind resistance adjustment mechanism 4 includes multiple heat dissipation frames 41. The heat dissipation frames 41 accelerate the cooling of condensate flowing in the flat pipe 2. The multiple heat dissipation frames 41 are all fixedly connected to the outside of the manifold 1. Multiple water inlet grooves 42 are opened on the inner side of each of the multiple heat dissipation frames 41. The water inlet grooves 42 are used to drain the condensate on the outside of the heat dissipation frames 41. Multiple rotating balls 43 are fixedly connected to the inner side of each of the multiple heat dissipation frames 41. Support columns 44 are rotatably connected to adjacent sides of each of the multiple rotating balls 43. Two rotating grooves 45 are opened on the outer side of each of the multiple support columns 44. Through the rotatable connection between the rotating balls 43 and the rotating grooves 45, the heat dissipation fins are... 46 is rotatable. Multiple support columns 44 are fixedly connected to the outer side of heat dissipation fins 46. The heat dissipation fins 46 are used to increase the heat dissipation area. Multiple heat dissipation fins 46 are fixedly connected to the bottom of multiple heat dissipation fins 46. The other side of multiple heat dissipation fins 47 is fixedly connected to the inner side of heat dissipation frame 41 at an angle. The heat dissipation fins 46 can rotate due to temperature through the angled connection of the heat dissipation fins 47. Two connecting columns 48 are fixedly connected to the outer side of multiple heat dissipation frames 41. Multiple connecting slots 49 are opened on the outer side of two manifolds 1. The heat dissipation frame 41 can be fixedly connected to the outer side of two manifolds 1 through the connecting columns 48 and connecting slots 49. Specifically, during evaporator assembly, multiple heat sinks 41 are fixedly installed between two manifolds 1 via the cooperation of connecting column 1 48 and connecting groove 2 49. The rotating ball 43 on the inner side of the heat sink 41 forms a rotatable connection with the rotating groove 45 on the support column 44, allowing the heat sink fins 46 to rotate freely. A shape memory alloy spring 47 is obliquely connected between the bottom of the heat sink fins 46 and the inner wall of the heat sink 41, providing an automatic adjustment driving force for the fins. When the evaporator is in a low-temperature, high-humidity state, the surface temperature of the flat tube 2 decreases. The shape memory alloy spring 47 senses the temperature drop and automatically contracts. Because the spring is obliquely connected, the tension generated by the contraction of the shape memory alloy spring 47 causes the heat sink fins 46 to rotate around the rotating ball 48. 3. Rotating downwards reduces the angle between the fins and the airflow, thus reducing the opening degree of the heat dissipation fins 46. This keeps the heat dissipation fins 46 in a relatively closed state, effectively intercepting the condensate that will be carried away by the airflow. When the evaporator is at room temperature, the shape memory alloy spring 47 automatically extends after sensing the temperature rise, causing the heat dissipation fins 46 to rotate upwards, increasing the angle between the fins and the airflow. This increases the opening degree of the heat dissipation fins 46, keeping them in an open state and improving heat exchange efficiency. Throughout the entire operation, the water channel 42 on the heat dissipation frame 41 continuously guides the condensate generated on the surface of the flat tube 2 and the heat dissipation frame 41, ensuring that the water is quickly drained away and preventing accumulation on the surface of the heat dissipation fins 46, thereby improving the overall heat exchange performance.

[0023] Please see the appendix Figure 11 - Appendix Figure 12In a preferred embodiment of the present invention, the dispensing mechanism 7 includes a stepper motor 71, which serves as a power source. The stepper motor 71 is fixedly connected to the outside of the collector pipe 1. The output end of the stepper motor 71 passes through the outside of the collector pipe 1 and is fixedly connected to a bevel gear 72. A rotating shaft 73 is rotatably connected to the inside of the collector pipe 1. A bevel gear 74 is fixedly connected to the top of the rotating shaft 73. Two spiral blades 75 are fixedly connected to the outside of the rotating shaft 73. The liquid at the bottom layer flows upward through the spiral blades 75. The bevel gear 72 meshes with the bevel gear 74, and power is transmitted through the bevel gear 72 and the bevel gear 74. A positioning block 76 is fixedly connected to the inner side of the water outlet 6. Multiple elastic connecting columns 77 are fixedly connected to the bottom end of the positioning block 76. Positioning balls 78 are fixedly connected to the other end of each elastic connecting column 77. A positioning frame 79 is fixedly connected to the middle of the outer side of the rotating shaft 73. A positioning groove 710 is opened on the outer side of the positioning frame 79. Multiple positioning balls 78 are slidably connected to the inner side of the positioning groove 710. The positioning block 76, elastic connecting columns 77, positioning balls 78 and positioning groove 710 are used to limit the position of the rotating shaft 73. A limiting column 711 is fixedly connected to the middle of the outer side of the rotating shaft 73. A second limiting groove 712 is opened on the inner side of the collection pipe 1. The limiting column 711 and the second limiting groove 712 can not only increase the restriction on the position of the rotating shaft 73, but also increase the sealing between the water inlet 5 and the water outlet 6. Specifically, during evaporator assembly, the rotating shaft 73 is first installed inside a manifold 1, with the limiting post 711 embedded in the limiting groove 712. This fit between the limiting post 711 and the limiting groove 712 restricts the axial displacement of the rotating shaft 73 and enhances the seal between the inlet tank 5 and the outlet tank 6. Then, the positioning block 76 is fixed inside the outlet tank 6. The positioning ball 78 is pressed into the positioning groove 710 on the positioning frame 79 via the elastic connecting post 77. The elastic force of the connecting post 77 ensures that the positioning ball 78 remains tightly against the positioning groove 710, working in conjunction with the limiting post 711 to ensure the rotating shaft 73 remains stable during operation and does not experience radial runout. The motor 71 is fixedly installed on the outside of the manifold 1, so that the output end of the stepper motor 71 passes through the pipe wall and is connected to the first bevel gear 72. The first bevel gear 72 meshes with the second bevel gear 74 at the top of the rotating shaft 73 to form an L-shaped transmission structure. When the stepper motor 71 starts, the power is transmitted to the rotating shaft 73 through the bevel gear structure, so that the two spiral blades 75 fixedly connected to the outside of the rotating shaft 73 rotate synchronously. By utilizing the spiral direction design of the spiral blades 75, the spiral blades 75 push the liquid refrigerant at the bottom of the water inlet tank 5 and the water outlet tank 6 to flow upward, breaking the gravity stratification and forcing the liquid to be evenly distributed in the inlet of each flat tube 2, thus solving the problem of uneven refrigerant distribution and realizing the uniform distribution of refrigerant.

[0024] Working principle: When the evaporator is working, the condensate generated on the surface of the flat tube 2 drips onto the top of the guide plate 34 under gravity. The guide plate 34 guides the condensate to the inverted frustum-shaped water absorption groove 35. Using capillary action, the water is quickly guided into the absorbent cotton 33 below. The structure of the absorbent groove 35, which is wider at the top and narrower at the bottom, can effectively prevent clogging, trapping larger impurities at the wide opening, while water can still seep in through the gaps, ensuring that the water absorption channel remains unobstructed for a long time. As the absorbent cotton 33 gradually becomes saturated with condensate, periodic drainage is required. This is achieved by manually pushing the connecting shaft 37, causing the squeezing plate 36 to move along the direction defined by the guide shaft 38 and the guide groove 39. When two adjacent squeezing plates 36 move towards each other, they generate uniform squeezing force on the absorbent cotton 33 in the middle, squeezing out the condensate absorbed inside the cotton. The squeezed-out condensate flows to the bottom of the water collection box 32 under gravity and then through the water guide hose 316. Guided downwards, all the condensate squeezed out by the water collection box 32 eventually collects in the water storage tank 317 at the bottom for storage. When the condensate flows into the water storage tank 317, the internal air is automatically discharged through the one-way exhaust valve 318 at the top, maintaining the balance of internal and external air pressure and ensuring smooth water intake. During the entire drainage process, the water collection box 32 is stably attracted and fixed to the magnetic fixing frame 31 by the magnetic connecting block 310 at the bottom. At the same time, the cooperation between the guide shaft 311 and the guide groove 312 ensures that the water collection box 32 will not shift when subjected to squeezing operation, ensuring the accuracy of drainage operation. When it is necessary to perform deep cleaning of the water collection box 32 or replace the absorbent cotton 33, the water collection box 32 can be removed from the magnetic fixing frame 31 by overcoming the magnetic force, and then the water guide plate 34 can be removed by separating the connecting buckle 313 and the limiting groove 315. This greatly simplifies the maintenance operation, ensures the long-term reliable operation of the evaporator, and effectively avoids condensate leakage. During evaporator assembly, multiple heat sinks 41 are fixedly installed between two manifolds 1 via the cooperation of connecting column 1 48 and connecting groove 2 49. The rotating ball 43 on the inner side of the heat sink 41 forms a rotatable connection with the rotating groove 45 on the support column 44, allowing the heat sink fins 46 to rotate freely. Since the shape memory alloy spring 47 is obliquely connected between the bottom of the heat sink fins 46 and the inner wall of the heat sink 41, it provides an automatic adjustment driving force for the fins. When the evaporator is in cooling and dehumidification mode, the surface temperature of the flat tube 2 decreases. After sensing the temperature drop, the shape memory alloy spring 47 automatically contracts. Because the spring is obliquely connected, the tension generated by its contraction causes the heat sink fins 46 to rotate downward around the rotating ball 43. The opening and closing degree of the heat dissipation fins 46 is reduced, so that the heat dissipation fins 46 are in a relatively closed state, effectively intercepting the condensate that will be carried away by the airflow. When the evaporator is in ventilation mode, the shape memory alloy spring 47 automatically extends after sensing the temperature rise. The thrust generated by the spring extension causes the heat dissipation fins 46 to rotate upward, increasing the opening and closing degree of the heat dissipation fins 46, so that the heat dissipation fins 46 are in an open state, and the airflow can pass through smoothly, improving the heat exchange efficiency. During the entire operation, the water guide trough 42 on the heat dissipation frame 41 continuously guides the condensate generated on the surface of the flat tube 2 and the heat dissipation frame 41, ensuring that the water is drained away quickly and avoiding accumulation on the surface of the heat dissipation fins 46, thus realizing the adaptive adjustment of the wind resistance state. When assembling the evaporator, firstly, the rotating shaft 73 is installed inside the manifold 1, so that the limiting post 711 is embedded in the limiting groove 712. The cooperation between the limiting post 711 and the limiting groove 712 not only restricts the axial displacement of the rotating shaft 73, but also enhances the sealing between the inlet tank 5 and the outlet tank 6. Then, the positioning block 76 is fixed inside the outlet tank 6, and the positioning ball 78 is pressed into the positioning groove 710 on the positioning frame 79 by the elastic connecting post 77. The elastic force of the elastic connecting post 77 keeps the positioning ball 78 in close contact with the positioning groove 710. Together with the limiting post 711, it ensures that the rotating shaft 73 is in good working order during operation. During the process, it remains stable and does not experience radial runout. Since the stepper motor 71 is fixedly installed on the outside of the manifold 1, when the stepper motor 71 starts, the power is transmitted to the rotating shaft 73 through the meshing connection between the bevel gears. This causes the two spiral blades 75 fixedly connected to the outside of the rotating shaft 73 to rotate synchronously. In turn, the curved surface of the spiral blades 75 pushes the liquid refrigerant at the bottom of the inlet tank 5 and the outlet tank 6 upward, breaking the gravity stratification effect and forcibly lifting the liquid refrigerant deposited at the bottom to the inlet height of each flat tube 2. This ensures that each parallel flow channel receives a uniform refrigerant supply, effectively solving the problem of uneven refrigerant distribution.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An evaporator with a condensate leakage prevention structure, comprising two manifolds (1), characterized in that, Multiple flat pipes (2) are fixedly connected to the outside of the two manifolds (1). A leak prevention mechanism (3) is provided on the outside of the flat pipes (2). A wind resistance adjustment mechanism (4) is provided on the outside of the flat pipes (2). A water inlet groove (5) is opened on the inside of the manifold (1). A water outlet groove (6) is opened on the inside of the manifold (1). A distribution mechanism (7) is provided on the inside of the manifold (1). The leak prevention mechanism (3) includes multiple magnetic fixing frames (31), each of which is fixedly connected to the outside of the collection pipe (1). Each of the multiple magnetic fixing frames (31) is slidably connected to a water collection box (32). Each of the multiple water collection boxes (32) is fixedly connected to an absorbent cotton (33). Each of the multiple water collection boxes (32) is slidably connected to a water guide plate (34). Each of the multiple water guide plates (34) has multiple water absorption grooves (35) on its outer side. Each of the multiple water collection boxes (32) has two extrusion plates (36) slidably connected to its inner side. Each of the multiple extrusion plates (36) is fixedly connected to a connecting shaft (37). Each of the multiple connecting shafts (37) is fixedly connected to a guide shaft (38). Each of the multiple water collection boxes (32) has two guide grooves (39) on its outer side. Each of the multiple guide shafts (38) is slidably connected to the inner side of the guide grooves (39). The wind resistance adjustment mechanism (4) includes multiple heat sinks (41), each of which is fixedly connected to the outside of the manifold (1). Multiple water inlets (42) are provided on the inside of each of the multiple heat sinks (41). Multiple rotating balls (43) are fixedly connected to the inside of each of the multiple heat sinks (41). A support column (44) is rotatably connected to the adjacent side of each of the multiple rotating balls (43). Two rotating slots (45) are provided on the outside of each of the multiple support columns (44). Heat dissipation fins (46) are fixedly connected to the outside of each of the multiple support columns (44). A memory alloy spring (47) is fixedly connected to the bottom of each of the multiple heat dissipation fins (46). The other side of each of the multiple memory alloy springs (47) is obliquely fixedly connected to the inside of the heat sink (41). The distribution mechanism (7) includes a stepper motor (71), which is fixedly connected to the outside of the collector tube (1). The output end of the stepper motor (71) passes through the outside of the collector tube (1) and is fixedly connected to a bevel gear (72). A rotating shaft (73) is rotatably connected to the inside of the collector tube (1). A bevel gear (74) is fixedly connected to the top of the rotating shaft (73). Two spiral blades (75) are fixedly connected to the outside of the rotating shaft (73). The bevel gear (72) meshes with the bevel gear (74).

2. An evaporator with a condensate leak-proof structure according to claim 1, characterized in that, Two magnetic connecting blocks (310) are fixedly connected to the bottom of each of the multiple water collection boxes (32), two guide shafts (311) are fixedly connected to the inner side of each of the multiple magnetic fixing frames (31), and multiple guide grooves (312) are opened on the outer side of each of the multiple water collection boxes (32). The guide shafts (311) are slidably connected to the inner side of the guide grooves (312).

3. An evaporator with a condensate leak-proof structure according to claim 1, characterized in that, The top of the multiple water collection boxes (32) is provided with multiple connecting grooves (314), and the inner side of each of the multiple connecting grooves (314) is fixedly connected with a connecting buckle (313). The top of the multiple water guide plates (34) is provided with multiple limiting grooves (315).

4. An evaporator with a condensate leak-proof structure according to claim 1, characterized in that, The bottom of each of the multiple water collection boxes (32) is connected to a water guide hose (316), and the other end of the water guide hose (316) on the bottom side is fixedly connected to a water storage tank (317). The top of the water storage tank (317) is fixedly connected to a one-way exhaust valve (318).

5. An evaporator with a condensate leak-proof structure according to claim 1, characterized in that, The multiple water-absorbing grooves (35) are all in the shape of an inverted frustum, and the multiple water-absorbing grooves (35) are evenly distributed on the top of the water guide plate (34).

6. An evaporator with a condensate leak-proof structure according to claim 1, characterized in that, Two connecting posts (48) are fixedly connected to the outer side of each of the multiple heat sinks (41), and multiple connecting slots (49) are provided on the outer side of each of the two manifolds (1).

7. An evaporator with a condensate leak-proof structure according to claim 1, characterized in that, A positioning block (76) is fixedly connected to the inner side of the water outlet tank (6). A plurality of elastic connecting columns (77) are fixedly connected to the bottom end of the positioning block (76). A positioning ball (78) is fixedly connected to the other end of each of the elastic connecting columns (77). A positioning frame (79) is fixedly connected to the middle of the outer side of the rotating shaft (73). A positioning groove (710) is opened on the outer side of the positioning frame (79). The plurality of positioning balls (78) are slidably connected to the inner side of the positioning groove (710).

8. An evaporator with a condensate leak-proof structure according to claim 1, characterized in that, A limiting post (711) is fixedly connected to the middle of the outer side of the rotating shaft (73), and a limiting groove (712) is opened on the inner side of the manifold (1).

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