Heat exchanger and air conditioning system

Abstract

The utility model provides a kind of heat exchanger and air conditioning system, heat exchanger includes: heat exchange body and evaporative component;Heat exchange body inside flow circulation heat exchange medium, heat exchange body has multiple heat exchange fins, heat exchange fin is used to exchange heat with external environment;Evaporative component includes evaporation structure and water receiving structure, water receiving structure is arranged at the bottom of heat exchanger, for collecting condensate water;Evaporation structure is communicated with water receiving structure by pipeline, evaporation structure is communicated with external environment, and condensate water in water receiving structure is evaporated to external environment by evaporation structure and is humidified.The utility model is evaporated to external environment by evaporation structure through the cooperation of evaporation structure and water receiving structure and works, realizes effective collection and efficient use of condensate water, reduces water resource waste, and condensate water in water receiving structure is evaporated to external environment by evaporation structure, realizes the humidification to external environment, especially in dry season can realize humidity compensation.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and more specifically, to a heat exchanger and an air conditioning system. Background Technology

[0002] In existing technologies, air conditioning systems generally employ separate temperature and humidity control methods. This means that indoor temperature is regulated by the evaporation or condensation of refrigerant in a heat exchange unit, while humidity control typically relies on additional humidification or dehumidification equipment. This design has the following drawbacks: 1. Resource consumption and energy efficiency issues: Additional humidification equipment often requires an extra power source, such as an electrically driven atomizer or heater. This not only increases the system's energy consumption but also reduces the overall energy efficiency ratio of the air conditioning system. Especially in summer cooling mode, additional humidification equipment further increases energy consumption. 2. Poor seasonal adaptability: Most air conditioning systems struggle to intelligently adjust indoor humidity to achieve a comfortable living environment in different seasons, especially summer and winter. During summer cooling, although a large amount of condensate is produced, this water is usually discharged directly without effective recycling and utilization, resulting in resource waste. During winter heating, the problem of indoor dryness is even more prominent, and existing air conditioning systems often lack effective active humidification strategies, requiring the reliance on additional humidifiers. This increases the economic burden on users, as well as the complexity of the system and the maintenance costs. 3. Poor user experience: Due to the lack of integrated humidity control functions, users need to manually adjust or replace additional humidity control devices in different seasons. This not only brings operational inconvenience but also limits the ability of the air conditioning system to provide a comprehensive comfortable environment.

[0003] Therefore, existing air conditioning systems have the problem of not being able to effectively collect and efficiently utilize condensate, and additional electrical equipment is required to meet indoor humidification needs. Utility Model Content

[0004] This invention provides a heat exchanger and an air conditioning system to solve the problem that existing air conditioning systems cannot effectively collect and efficiently utilize condensate, and require additional electrical equipment for indoor humidification needs.

[0005] To address the aforementioned problems, according to one aspect of this utility model, a heat exchanger is provided, comprising: a heat exchange body and an evaporation assembly; a heat exchange medium flows inside the heat exchange body, and the heat exchange body has multiple heat exchange fins for exchanging heat with the external environment; the evaporation assembly includes an evaporation structure and a water receiving structure, the water receiving structure being disposed at the bottom of the heat exchanger for collecting condensate; the evaporation structure is connected to the water receiving structure via a pipe, and the evaporation structure is connected to the external environment, the condensate in the water receiving structure being evaporated into the external environment through the evaporation structure for humidification.

[0006] Furthermore, the evaporation structure includes a porous water-absorbing element, which is disposed below the heat exchange fins to absorb condensate on the heat exchange fins; the porous water-absorbing element is connected to the water receiving structure through a pipe, and is used to evaporate the absorbed water into the external environment.

[0007] Furthermore, the evaporation structure also includes a distribution pipe, which is located above or inside the porous water absorption element and is connected to the water receiving structure through a pipe; wherein, the distribution pipe has multiple diversion holes, at least a portion of which are spaced apart along the axial direction of the distribution pipe, and the diversion holes transport the condensate in the distribution pipe to the porous water absorption element for evaporative humidification.

[0008] Furthermore, the multiple diversion holes include multiple first holes and multiple second holes. The first holes are located at the upper part of the distribution pipe, and the multiple first holes are spaced apart along the axial direction of the distribution pipe. The second holes are located at the lower part and / or the side of the distribution pipe, and the multiple second holes are spaced apart along the axial direction of the distribution pipe. The inner diameter of the first hole is greater than or equal to the inner diameter of the second hole. And / or, the axial direction of the distribution pipe is horizontally arranged, and the projection of the first hole onto the same horizontal plane in the vertical direction is spaced apart from or only partially overlaps with the projection of the second hole located at the lower part of the distribution pipe, so that the condensate is evenly distributed into the porous water absorption element along the axial direction of the distribution pipe.

[0009] Furthermore, the evaporation structure also includes an axial support plate and a support frame. There are two axial support plates, which are respectively arranged at both ends of the porous water absorption component along the axial direction of the distribution pipe. Both ends of the support frame are connected to the two axial support plates, and a hollow cavity is formed between the support frame and the axial support plates. The porous water absorption component is arranged in the hollow cavity. The end of the distribution pipe that connects to the water receiving structure is arranged on the axial support plate. The axial support plate and / or the support frame are fixedly connected to the heat exchange body to fix the evaporation structure.

[0010] Furthermore, the evaporation structure includes a porous water-absorbing element made of at least one material selected from activated carbon, fiber paper, and sponge; and / or, the outer surface of the heat exchange body and / or the heat exchange fins are coated with a hydrophilic coating, which is used to form a uniform water film of condensate; the heat exchange fins are made of aluminum alloy.

[0011] Furthermore, the water receiving structure includes a water receiving pan and a water pump. The water pump is connected to the water receiving pan and the evaporation structure through a pipeline. The water pump is used to drive the condensate to flow along the pipeline. The water receiving pan is located below the heat exchange body and is used to collect the condensate on the heat exchange body. The bottom wall inside the water receiving pan is inclined relative to the horizontal plane so that the condensate flows in a directional manner to a designated position. The inclination angle is α, where 0.5°≤a≤0.8°.

[0012] Furthermore, the water receiving structure also includes at least one of a replenishment pipe, a discharge pipe, and a water level detector; the replenishment pipe is connected to an external water source and a water receiving pan respectively, and the replenishment pipe is used to replenish liquid into the water receiving pan; the discharge pipe is connected to the water receiving pan and is used to discharge water from the water receiving pan; the water level detector is installed on the water receiving pan and is used to detect the water level height in the water receiving pan.

[0013] Furthermore, the heat exchange fins on the heat exchange body are divided into multiple heat exchange groups from top to bottom, and there are multiple evaporation structures. The multiple evaporation structures are arranged one-to-one with the multiple heat exchange groups. The evaporation structures are located below the heat exchange fins of the corresponding heat exchange groups to absorb the condensate on the heat exchange fins; and / or, the water receiving structure includes a water receiving tray, which covers the bottom of the heat exchange body to collect the condensate.

[0014] According to another aspect of the present invention, an air conditioning system is provided, the air conditioning system including the heat exchanger described above, the heat exchanger being disposed inside the indoor unit of the air conditioning system for exchanging heat with indoor air, and the condensate in the water receiving structure being evaporated into the indoor air through the evaporation structure for humidification.

[0015] Applying the technical solution of this utility model, this utility model provides a heat exchanger, including: a heat exchange body and an evaporation assembly; a heat exchange medium flows inside the heat exchange body, and the heat exchange body has multiple heat exchange fins for exchanging heat with the external environment; the evaporation assembly includes an evaporation structure and a water receiving structure, the water receiving structure is located at the bottom of the heat exchanger for collecting condensate; the evaporation structure is connected to the water receiving structure through a pipe, and the evaporation structure is connected to the external environment, and the condensate in the water receiving structure evaporates to the external environment through the evaporation structure for humidification.

[0016] This invention achieves effective collection and efficient utilization of condensate by combining an evaporation structure and a water collection structure, reducing water waste. The condensate in the water collection structure evaporates into the external environment through the evaporation structure, humidifying the external environment, especially providing humidity compensation during dry seasons. The heat exchanger proposed in this invention can be applied to the indoor unit of an air conditioning system. By setting up the evaporation and water collection structures, it can meet indoor humidification needs without the need for additional electrical equipment. After applying the heat exchanger proposed in this invention to the indoor unit of an air conditioning system, it integrates condensate recovery and humidification functions into the indoor unit, breaking through the limitations of traditional air conditioners that can only control temperature. It provides a solution that can efficiently exchange heat and humidify, especially during summer cooling, where it can actively humidify without additional power, thereby optimizing the indoor environment, improving user experience, and achieving energy conservation and environmental protection goals. This invention has a simple structure and low cost, is easy to assemble and maintain, and is suitable for large-scale promotion and use. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the external structure of a heat exchanger provided in an embodiment of the present invention is shown;

[0019] Figure 2 An exploded view of a portion of the structure of a heat exchanger provided in an embodiment of this utility model is shown;

[0020] Figure 3 A partial structural schematic diagram of the evaporation assembly provided in an embodiment of the present invention is shown;

[0021] Figure 4 An exploded view of a portion of the evaporation structure provided in an embodiment of this utility model is shown.

[0022] Figure 5 A schematic diagram of the specific structure of the distribution pipeline provided in an embodiment of this utility model is shown;

[0023] Figure 6 It shows Figure 5 A magnified view of a portion of point A in the middle;

[0024] Figure 7 A schematic diagram of the specific structure of the water receiving tray provided in an embodiment of this utility model is shown.

[0025] The above figures include the following reference numerals:

[0026] 10. Heat exchanger body;

[0027] 20. Evaporation assembly; 21. Evaporation structure; 211. Porous water suction component; 212. Distribution pipeline; 213. Diversion hole; 214. First hole; 215. Second hole; 216. Axial support plate; 217. Support frame; 22. Water receiving structure; 221. Water receiving tray; 222. Water pump; 223. Supplementary pipeline; 224. Discharge pipeline. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] like Figures 1 to 7 As shown, an embodiment of this utility model provides a heat exchanger, including: a heat exchange body 10 and an evaporation assembly 20; a heat exchange medium flows inside the heat exchange body 10, and the heat exchange body 10 has multiple heat exchange fins for exchanging heat with the external environment; the evaporation assembly 20 includes an evaporation structure 21 and a water receiving structure 22, the water receiving structure 22 is disposed at the bottom of the heat exchanger for collecting condensate; the evaporation structure 21 is connected to the water receiving structure 22 through a pipe, and the evaporation structure 21 is connected to the external environment, and the condensate in the water receiving structure 22 evaporates to the external environment through the evaporation structure for humidification.

[0030] This invention, through the coordinated operation of an evaporation structure 21 and a water collection structure 22, effectively collects and utilizes condensate, reducing water waste. The condensate in the water collection structure 22 evaporates into the external environment through the evaporation structure 21, achieving humidification, especially in dry seasons where it can compensate for humidity. The heat exchanger proposed in this invention can be applied to the indoor unit of an air conditioning system. By setting up the evaporation structure 21 and the water collection structure 22, indoor humidification needs can be met without additional electrical equipment. After applying the heat exchanger proposed in this invention to the indoor unit of an air conditioning system, the integration of condensate recovery and humidification functions is achieved, breaking through the limitations of traditional air conditioners that can only control temperature. It provides a solution that can efficiently exchange heat and humidify, especially during summer cooling, where active humidification can be achieved without additional power, thereby optimizing the indoor environment, improving user experience, and achieving energy conservation and environmental protection goals. This invention has a simple structure and low cost, is easy to assemble and maintain, and is suitable for large-scale promotion and use.

[0031] like Figure 2 , Figure 3 and Figure 4 As shown, the evaporation structure 21 includes a porous water absorption element 211, which is disposed below the heat exchange fins to absorb condensate on the heat exchange fins; the porous water absorption element 211 is connected to the water receiving structure 22 through a pipe, and is used to evaporate the absorbed water to the external environment.

[0032] The above design allows the heat exchanger to achieve humidification without an additional power source during cooling, using a simple structure to meet indoor humidification needs and achieve a humidification effect suitable for all seasons.

[0033] like Figure 3 , Figure 4 and Figure 5As shown, the evaporation structure 21 also includes a distribution pipe 212, which is disposed above or inside the porous water absorption member 211. The distribution pipe 212 is connected to the water receiving structure 22 through a pipe. The distribution pipe 212 has multiple diversion holes 213, and at least a portion of the multiple diversion holes 213 are spaced apart along the axial direction of the distribution pipe 212. The diversion holes 213 transport the condensate in the distribution pipe 212 to the porous water absorption member 211 for evaporative humidification.

[0034] By setting at least a portion of the diversion holes 213 at intervals along the axial direction of the distribution pipe 212, the condensate in the water receiving structure 22 can be evenly distributed onto the porous water absorption element 211, promoting uniform evaporation of water and thus improving humidification efficiency. The horizontal axial arrangement of the distribution pipe 212 ensures that the condensate can flow smoothly to the porous water absorption element 211, avoiding turbulence in the water flow and improving the stability of the humidification process. In practical applications, the above design can significantly improve the energy efficiency ratio of the air conditioning system, especially in summer cooling mode, where the natural evaporation of condensate provides humidification for the indoor unit of the air conditioner, greatly enhancing the user experience.

[0035] like Figure 4 , Figure 5 and Figure 6 As shown, the plurality of diversion holes 213 include a plurality of first holes 214 and a plurality of second holes 215. The first holes 214 are disposed at the upper part of the distribution pipe 212, and the plurality of first holes 214 are spaced apart along the axial direction of the distribution pipe 212. The second holes 215 are disposed at the lower part and / or side part of the distribution pipe 212, and the plurality of second holes 215 are spaced apart along the axial direction of the distribution pipe 212. The inner diameter of the first hole 214 is greater than or equal to the inner diameter of the second hole 215. And / or, the axial direction of the distribution pipe 212 is horizontally arranged, and the projection of the first hole 214 onto the same horizontal plane in the vertical direction is spaced apart from or only partially overlaps with the projection of the second hole 215 located at the lower part of the distribution pipe 212, so that the condensate is evenly distributed into the porous water absorption member 211 along the axial direction of the distribution pipe 212.

[0036] By setting the internal diameter of the first hole 214 to be greater than or equal to the internal diameter of the second hole 215, the larger flow rate of water from the first hole 214 can preferentially enter the upper part of the porous water absorber 211 and be redistributed evenly under gravity. This also ensures smoother flow of condensate within the distribution pipe 212, preventing blockages and improving system reliability. Furthermore, by setting the projection of the first hole 214 and the projection of the second hole 215 located at the lower part of the distribution pipe 212 to be spaced apart or partially overlapped, the condensate can be evenly distributed axially along the distribution pipe 212, preventing excessive or insufficient moisture in certain areas and improving the humidification effect of the porous water absorber 211. In practical applications, this design ensures that the air conditioning system can adjust the humidification amount according to indoor humidity requirements in different seasons, providing optimal living comfort.

[0037] In one specific embodiment of this utility model, the inner diameter of the first hole 214 is 3mm, and the inner diameter of the second hole 215 is 1.5mm.

[0038] like Figure 3 and Figure 4 As shown, the evaporation structure 21 also includes an axial support plate 216 and a support frame 217. There are two axial support plates 216, which are respectively arranged at both ends of the porous water absorption member 211 along the axial direction of the distribution pipe 212. The two ends of the support frame 217 are respectively connected to the two axial support plates 216, and a hollow cavity is formed between the support frame 217 and the axial support plates 216. The porous water absorption member 211 is arranged in the hollow cavity. The end of the distribution pipe 212 that connects to the water receiving structure 22 is arranged on the axial support plate 216. The axial support plate 216 and / or the support frame 217 are fixedly connected to the heat exchange body 10 to fix the evaporation structure 21.

[0039] By incorporating a porous water-absorbing component 211 within the hollow cavity, sufficient space is provided for water evaporation while maintaining structural compactness and saving installation space. The connection between the distribution pipe 212 and the water-receiving structure 22 is established on the axial support plate 216, ensuring smooth condensate flow and preventing pipe blockage. The fixed connection between the axial support plate 216 and / or the support frame 217 and the heat exchanger body 10 simplifies the heat exchanger assembly process, enhances structural robustness, and extends the equipment's service life. In practical applications, this design ensures that the evaporation structure 21 maintains good performance even after prolonged operation, providing continuous humidification and improving the overall performance and user satisfaction of the air conditioning system.

[0040] Specifically, the evaporation structure 21 includes a porous water-absorbing element 211, which is made of at least one material selected from activated carbon, fiber paper, and sponge; and / or, the outer surface of the heat exchange body 10 and / or the heat exchange fins are coated with a hydrophilic coating, which is used to make the condensate form a uniform water film; the heat exchange fins are made of aluminum alloy.

[0041] By incorporating a porous water-absorbing element 211 made of at least one of activated carbon, fiber paper, and sponge, the excellent water absorption and evaporation properties of these materials are effectively utilized, enabling efficient evaporation of moisture under natural conditions to achieve a humidification effect. By coating the outer surface of the heat exchange body 10 and / or the heat exchange fins with a hydrophilic coating, a uniform water film is formed on the fin surface, preventing water droplet splashing and improving the condensate recovery efficiency. By using aluminum alloy for the heat exchange fins, the fins have good thermal conductivity and corrosion resistance, thereby meeting the heat exchange requirements of the air conditioning system.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, the water receiving structure 22 includes a water receiving pan 221 and a water pump 222. The water pump 222 is connected to the water receiving pan 221 and the evaporation structure 21 through a pipeline. The water pump 222 is used to drive the condensate to flow along the pipeline. The water receiving pan 221 is located below the heat exchange body 10 and is used to collect the condensate on the heat exchange body 10. The bottom wall inside the water receiving pan 221 is inclined relative to the horizontal plane so that the condensate flows in a directional direction to a designated position. The inclination angle is α, where 0.5°≤α≤0.8°.

[0043] The design of the aforementioned water receiving structure 22 takes into account the efficient collection and utilization of condensate. By setting the bottom wall of the water receiving tray 221 to be inclined, with the inclination angle α controlled between 0.5° and 0.8°, it can be ensured that the condensate flows smoothly to the porous water absorption component 211 under the action of gravity, avoiding water turbulence and improving the stability of the humidification process. In practical applications, this design can ensure that the air conditioning system can maintain a stable humidification effect in summer cooling mode, even in low humidity environments, thereby improving the system's adaptability and user satisfaction.

[0044] In one specific embodiment of this utility model, the water pump 222 is a miniature centrifugal pump.

[0045] It should be noted that in another specific embodiment of this utility model, in order to achieve the inclined setting of the bottom wall inside the water receiving tray 221 relative to the horizontal plane, the following design method can be adopted: 1. When processing the water receiving tray 221, the bottom wall of the water receiving tray 221 is directly processed into an inclined surface, thereby realizing the inclined water collection function, with an inclination angle of α, 0.5°≤α≤0.8°; 2. The water receiving tray 221 is designed as a rectangular shell structure, and the bottom surface of the rectangular shell structure is normally processed into a plane. Taking the vertical dimension of the rectangular shell as the thickness, the thickness of the left side of the rectangular shell structure along the horizontal direction is designed to be greater than the thickness of the right side. In this way, when the left and right sides of the rectangular shell structure are installed at the same height at the bottom of the heat exchange body 10, due to the difference in the thickness of the left and right sides, the bottom surface of the rectangular shell structure is naturally inclined relative to the horizontal plane, thereby realizing the inclined water collection function, with an inclination angle of α, 0.5°≤α≤0.8°.

[0046] like Figure 7 As shown, the water receiving structure 22 also includes at least one of a replenishment pipe 223, a discharge pipe 224, and a water level detector; the replenishment pipe 223 is connected to an external water source and a water receiving pan 221 respectively, and the replenishment pipe 223 is used to replenish liquid into the water receiving pan 221; the discharge pipe 224 is connected to the water receiving pan 221 and is used to discharge water from the water receiving pan 221; the water level detector is installed on the water receiving pan 221 and is used to detect the water level height in the water receiving pan 221.

[0047] By setting up a replenishment pipe 223, a discharge pipe 224, and a water level detector, a complete water circulation system is formed, which can ensure the effective utilization of condensate and the normal operation of the system. The replenishment pipe 223 is connected to an external water source and is used to replenish liquid in the water tray 221 when the condensate is insufficient, ensuring the continuity of the humidification function. The discharge pipe 224 is connected to the water tray 221 and is used to discharge excess water when there is too much condensate, avoiding water accumulation and improving the safety and reliability of the system. The water level detector is set on the water tray 221 to monitor the water level in the water tray 221 in real time. Subsequently, the working status of the replenishment and discharge pipes can be automatically adjusted by the intelligent control system to ensure the rational utilization of condensate and the efficient operation of the system. In practical applications, the above design can ensure that the air conditioning system can automatically adjust the humidification amount in different seasons and humidity environments, providing the best living comfort and improving the overall performance of the air conditioning system and user satisfaction.

[0048] like Figure 1 , Figure 2 and Figure 3As shown, the heat exchanger body 10 has multiple heat exchange fins divided into multiple heat exchange groups from top to bottom. There are multiple evaporation structures 21, and each evaporation structure 21 is arranged in a one-to-one correspondence with a heat exchange group. The evaporation structure 21 is located below the heat exchange fins of the corresponding heat exchange group to absorb condensate on the heat exchange fins. And / or, the water receiving structure 22 includes a water receiving tray 221, which covers the bottom of the heat exchanger body 10 to collect condensate.

[0049] By arranging multiple heat exchange fins on the heat exchange body 10 into multiple heat exchange groups from top to bottom, and setting an evaporation structure 21 below each heat exchange group, the uniform distribution of condensate during the heat exchange process is ensured, improving the humidification effect. By setting a water collection tray 221 to cover the bottom of the heat exchange body 10, not only is the structure of the heat exchanger simplified, but the condensate recovery efficiency is also improved, providing a sufficient humidification water source for the air conditioning system. In practical applications, the above design ensures that the air conditioning system maintains a stable humidification effect even in low humidity environments during summer cooling mode, improving system adaptability and user satisfaction.

[0050] In another embodiment of this utility model (not shown), the heat exchanger may further include a heater for accelerating the evaporation of moisture from the porous water-absorbing element 211 in winter heating mode, thereby improving humidification efficiency. The heater may be an electric heating wire, an infrared heater, or a hot air device. The heating power is automatically adjusted by an intelligent control system based on data from an indoor humidity sensor to ensure that the indoor humidity remains within a comfortable range. The above design not only improves the seasonal adaptability of the air conditioning system but also provides a fast and effective humidification solution in dry winter environments, meeting users' high standards for indoor humidity.

[0051] This utility model also provides an air conditioning system, which includes the heat exchanger described above. The heat exchanger is installed inside the indoor unit of the air conditioning system and is used to exchange heat with the indoor air. The condensate in the water receiving structure 22 is evaporated into the indoor air through the evaporation structure 21 for humidification.

[0052] The air conditioning system proposed in this invention not only improves the humidity regulation capability of the air conditioning system, but also provides flexible humidification strategies for different seasons, meeting users' high standards for indoor humidity. In practical applications, this design ensures that the air conditioning system maintains a stable humidification effect even in high humidity environments during summer cooling mode, improving system adaptability and user satisfaction. In winter heating mode, the water pump 222 is activated to deliver water from the water collection pan to the humidification unit, achieving active humidification, solving the winter dryness problem, and improving living comfort.

[0053] The specific working process and principle of one embodiment of this utility model will now be described in detail as follows:

[0054] When the air conditioning system proposed in this utility model is used for summer cooling: the low-temperature refrigerant (5℃~10℃) flows through the heat exchange fins, and the "condensation-humidification" closed loop is completed by relying on the phase change of the refrigerant (i.e., the heat exchange medium). The condensate generated by the refrigerant evaporation and heat absorption flows downward in a direction through the hydrophilic coating (contact angle <15°) on the heat exchange fins and is collected by the porous water absorption element 211 and the water receiving tray 221 below the heat exchange fins. The porous water absorption element 211 has activated carbon and fiber bundles (e.g., a porous paper structure with a porosity of 85%) inside. Through capillary action, spontaneous capillary transport is achieved. Subsequently, it can be used in conjunction with the axial flow fan of the indoor air conditioning unit for secondary atomization, thereby increasing the relative humidity of the room. The porous water absorption element 211 uses the capillary action of activated carbon / fiber paper to naturally evaporate the condensate, simultaneously achieving cooling and non-powered humidification. Of course, if the indoor air is relatively humid and hot, the condensate collected in the water receiving tray 221 is discharged through the discharge pipe 224, which can also achieve condensation dehumidification of the indoor humid and hot air.

[0055] When the air conditioning system proposed in this utility model is used for heating in winter: high-temperature refrigerant (35℃~50℃) flows through the heat exchange fins, heating the fins to prevent moisture in the air from condensing. Since the air is generally dry in winter, when indoor air humidification is needed, water needs to be added to the water collection tray through the replenishment pipe 223. The water pump 222 drives the water in the water collection tray 221 to flow to the porous water suction element 211 for evaporative humidification, thereby increasing indoor humidity. Therefore, the heat exchanger proposed in this utility model has a function of switching between passive and active humidification modes, making it more widely applicable.

[0056] The heat exchanger proposed in this invention achieves automatic condensate recovery and humidification. The surface of the heat exchange fins is covered with a hydrophilic coating, ensuring that the condensate adheres stably to the surface and flows to the evaporation assembly 20 under gravity. The porous water-absorbing element 211 of the evaporation assembly 20 adopts a composite evaporation curtain structure of activated carbon and fiber paper. When condensate falls from the heat exchange fins on the upper side of the porous water-absorbing element 211, it is absorbed by capillary action and automatically diffuses water vapor, achieving humidification without power. The core advantages of the heat exchanger proposed in this invention are water resource recycling, environmental protection and energy saving, and the ability to maintain comfortable humidity without additional humidification equipment.

[0057] The air conditioning system proposed in this utility model integrates condensate recovery and humidification functions into the main body of the air conditioning unit, breaking through the limitation of traditional air conditioners that only control temperature; it utilizes the principle of natural evaporation to reduce additional energy consumption; and it has an active humidification function in winter to achieve humidity compensation during the dry season.

[0058] The air conditioning system proposed in this utility model, through its integrated humidity control design, breaks through the limitations of traditional air conditioners that only control temperature, effectively maintaining comfortable indoor humidity, especially in dry winters or sweltering summers, significantly improving the living experience. In summer cooling mode, humidification is achieved using the principle of natural evaporation, requiring no additional energy consumption, greatly reducing operating costs and embodying the concept of environmental protection and energy conservation. In winter, the active humidification mode, through the coordinated work of supplementary pipe 223 and water pump 222, solves the problem of dry indoor air in winter, enhancing the system's applicability and user satisfaction. Subsequently, it can intelligently identify seasonal changes and automatically adjust the humidification strategy, simplifying the user's operation process and improving the system's intelligence level. The overall design of this utility model reduces the need for additional humidification equipment, lowers maintenance costs, and the design of the discharge pipe 224 and water level detector, combined with the application of an automatic drain valve, effectively avoids excessive water levels and long-term residue in the water tray 221, thereby preventing mold growth and ensuring the long-term stable operation of the air conditioning system.

[0059] In summary, this utility model provides a heat exchanger and an air conditioning system. By setting up an evaporation structure 21 and a water collection structure 22 to work together, this utility model achieves effective collection and efficient utilization of condensate, reducing water waste. The condensate in the water collection structure 22 evaporates to the external environment through the evaporation structure 21, achieving humidification of the external environment, especially in dry seasons where humidity compensation can be achieved. The heat exchanger proposed in this utility model can be applied to the indoor unit of an air conditioning system. By setting up the evaporation structure 21 and the water collection structure 22, indoor humidification needs can be met without the need for additional electrical equipment. After applying the heat exchanger proposed in this utility model to the indoor unit of an air conditioning system, the integration of condensate recovery and humidification functions into the indoor unit breaks through the limitation of traditional air conditioners that can only control temperature. It provides a solution that can both efficiently exchange heat and humidify, especially in summer cooling, where active humidification can be achieved without additional power, thereby optimizing the indoor environment, improving user experience, and achieving the goal of energy conservation and environmental protection. This utility model has a simple structure and low cost, is easy to assemble and maintain, and is suitable for large-scale promotion and use.

[0060] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0063] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0064] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0066] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat exchanger, characterized by, include: The heat exchanger consists of a heat exchanger body (10) and an evaporation assembly (20). The heat exchanger body (10) contains a heat exchange medium and has multiple heat exchange fins for exchanging heat with the external environment. The evaporation assembly (20) includes an evaporation structure (21) and a water collection structure (22). The water collection structure (22) is located at the bottom of the heat exchanger and is used to collect condensate. The evaporation structure (21) is connected to the water collection structure (22) through a pipe. The evaporation structure (21) is connected to the external environment. The condensate in the water collection structure (22) is evaporated to the external environment through the evaporation structure for humidification.

2. The heat exchanger of claim 1, wherein The evaporation structure (21) includes a porous water-absorbing element (211), which is disposed below the heat exchange fins to absorb condensate on the heat exchange fins; the porous water-absorbing element (211) is connected to the water receiving structure (22) through a pipe, and the porous water-absorbing element (211) is used to evaporate the absorbed water to the external environment.

3. The heat exchanger of claim 2, wherein The evaporation structure (21) further includes a distribution pipe (212), which is disposed above or inside the porous water-absorbing element (211). The distribution pipe (212) is connected to the water-receiving structure (22) through a pipe. The distribution pipe (212) has a plurality of diversion holes (213), at least a portion of which are spaced apart along the axial direction of the distribution pipe (212). The diversion holes (213) transport the condensate in the distribution pipe (212) to the porous water-absorbing element (211) for evaporative humidification.

4. The heat exchanger of claim 3, wherein The plurality of diversion holes (213) include a plurality of first holes (214) and a plurality of second holes (215). The first holes (214) are disposed on the upper part of the distribution pipe (212), and the plurality of first holes (214) are spaced apart along the axial direction of the distribution pipe (212). The second holes (215) are disposed on the lower part and / or side of the distribution pipe (212), and the plurality of second holes (215) are spaced apart along the axial direction of the distribution pipe (212). Wherein, the inner diameter of the first hole (214) is greater than or equal to the inner diameter of the second hole (215); and / or, the distribution pipe (212) is arranged horizontally along the axis and projected onto the same horizontal plane along the vertical direction, the projection of the first hole (214) and the projection of the second hole (215) located at the lower part of the distribution pipe (212) are spaced apart or only partially overlap, so that the condensate is evenly distributed into the porous water absorption member (211) along the axis of the distribution pipe (212).

5. The heat exchanger according to claim 3, characterized in that, The evaporation structure (21) further includes an axial support plate (216) and a support frame (217). There are two axial support plates (216), which are respectively arranged at both ends of the porous water absorption component (211) along the axial direction of the distribution pipe (212). The two ends of the support frame (217) are respectively connected to the two axial support plates (216). A hollow cavity is formed between the support frame (217) and the axial support plate (216). The porous water absorption component (211) is arranged in the hollow cavity. The end of the distribution pipe (212) that communicates with the water receiving structure (22) is arranged on the axial support plate (216). The axial support plate (216) and / or the support frame (217) are fixedly connected to the heat exchange body (10) to fix the evaporation structure (21).

6. The heat exchanger of claim 1, wherein The evaporation structure (21) includes a porous water-absorbing element (211), which is made of at least one of activated carbon, fiber paper and sponge; and / or, the outer surface of the heat exchange body (10) and / or the heat exchange fins are coated with a hydrophilic coating, which is used to make the condensate form a uniform water film; the heat exchange fins are made of aluminum alloy.

7. The heat exchanger according to claim 1, characterized in that, The water receiving structure (22) includes a water receiving tray (221) and a water pump (222). The water pump (222) is connected to the water receiving tray (221) and the evaporation structure (21) through a pipeline. The water pump (222) is used to drive the condensate to flow along the pipeline. The water receiving tray (221) is located below the heat exchange body (10) and is used to collect the condensate on the heat exchange body (10). The bottom wall inside the water receiving tray (221) is inclined relative to the horizontal plane so that the condensate flows in a directional direction to a designated position. The inclination angle is a, 0.5°≤a≤0.8°.

8. The heat exchanger of claim 7, wherein The water receiving structure (22) further includes at least one of a replenishment pipe (223), a discharge pipe (224), and a water level detector; the replenishment pipe (223) is connected to an external water source and the water receiving tray (221) respectively, and the replenishment pipe (223) is used to replenish liquid into the water receiving tray (221); the discharge pipe (224) is connected to the water receiving tray (221) and is used to discharge water from the water receiving tray (221); the water level detector is installed on the water receiving tray (221) and is used to detect the water level height in the water receiving tray (221).

9. The heat exchanger of claim 1, wherein The heat exchange body (10) has multiple heat exchange fins divided into multiple heat exchange groups from top to bottom. There are multiple evaporation structures (21), and each of the multiple evaporation structures (21) is arranged in a one-to-one correspondence with a heat exchange group. The evaporation structure (21) is located below the heat exchange fins of the corresponding heat exchange group to absorb condensate on the heat exchange fins. And / or, the water receiving structure (22) includes a water receiving tray (221), which covers the bottom of the heat exchange body (10) to collect condensate.

10. An air conditioning system characterized by, The air conditioning system includes a heat exchanger as described in any one of claims 1 to 9. The heat exchanger is disposed inside the indoor unit of the air conditioning system for exchanging heat with indoor air. The condensate in the water receiving structure (22) evaporates into the indoor air through the evaporation structure (21) for humidification.

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