Heat exchanger structure, air drying device, air conditioner indoor unit and air conditioning system

Abstract

The present application relates to heat exchange technical field, provide a kind of heat exchanger structure, air drying equipment, air conditioner indoor unit and air conditioning system.The heat exchanger structure includes at least one group of heat exchange unit, each group of heat exchange unit includes: heat exchange pipe, heat exchange pipe includes at least two side-by-side arranged heat exchange pipe sections, the end of adjacent heat exchange pipe section is sequentially connected by pipe joint;Fin, each heat exchange pipe section is provided with several interval arranged fins along the axial direction, all the fins on one heat exchange pipe section and all the fins on the heat exchange pipe section adjacent to it are inserted into the gap between the adjacent fins of the other, i.e. so that each fin on one heat exchange pipe section is partially extended into the gap between every adjacent two fins on another heat exchange pipe section;Water guide plate, fixedly attached to the outside of all the fins of at least one heat exchange pipe section, water guide plate downstream is provided with drain groove.The heat exchanger structure of the structure can fully and quickly remove excess moisture in air to provide dry air.

Description

Technical Field

[0001] This invention relates to the field of heat exchange technology, and more particularly to a heat exchanger structure, an air drying device, an indoor air conditioning unit, and an air conditioning system. Background Technology

[0002] Existing air conditioning systems, especially in humid regions, only provide conventional cooling and heating. Due to the high humidity, particularly in summer, the humid air after cooling blown onto the skin can cause discomfort and make people feel unwell. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a heat exchanger structure that can effectively and rapidly remove excess moisture from the air to provide dry air.

[0004] The present invention also proposes an air drying device.

[0005] The present invention also proposes an indoor unit for an air conditioner.

[0006] The present invention also proposes an air conditioning system.

[0007] A first aspect of the present invention provides a heat exchanger structure, including at least one set of heat exchange units, each set of heat exchange units including:

[0008] The heat exchange tube includes at least two heat exchange tube sections arranged side by side, with the ends of adjacent heat exchange tube sections connected in sequence by a pipe joint;

[0009] Each heat exchange tube segment is provided with a number of spaced fins along the axial direction. All fins on a heat exchange tube segment and all fins on the adjacent heat exchange tube segments are interlocked into the gaps between adjacent fins, so that each fin on a heat exchange tube segment partially extends into the gaps between every two adjacent fins on another heat exchange tube segment.

[0010] A water guide plate is fixedly attached to the outside of all fins of at least one of the heat exchange tube sections, and a drainage groove is provided downstream of the water guide plate to collect condensate.

[0011] According to one embodiment of the present invention, the fin is provided with at least one water guiding surface, the water guiding surface is configured as an inclined surface, the inclined surface is inclined from the side away from the water guiding plate to the side closer to the water guiding plate, and the lowest point of the inclined surface is close to the water guiding plate.

[0012] According to one embodiment of the present invention, both sides of the fin are configured as water guiding surfaces, the water guiding surfaces are configured as inclined surfaces, the inclination direction of the pair of inclined surfaces is inclined from the side away from the water guiding plate to the side closer to the water guiding plate, and the lowest point of the inclined surface is close to the water guiding plate.

[0013] According to one embodiment of the present invention, the fin is rhomboid in shape, and the two oblique sides of the rhombus form a pair of water-guiding surfaces of the fin.

[0014] According to one embodiment of the present invention, at least one surface of the water guide plate that is attached to the fin is coated with a hydrophobic material layer;

[0015] Each of the water guide plates is fixedly attached to the outside of all the fins of at least two adjacent heat exchange tube sections.

[0016] According to one embodiment of the present invention, the device includes at least two sets of heat exchange units, all of which are arranged side by side. The water guide plates of each set of heat exchange units are located on the same side, and all fins of one set of heat exchange units are in contact with the water guide plates of the adjacent set of heat exchange units. The drainage channel below each water guide plate is collected into a water collection device through a pipeline.

[0017] According to one embodiment of the present invention, the angle between the water guide plate and the horizontal plane is 15-90 degrees.

[0018] According to one embodiment of the present invention, at least two sets of the heat exchange units form a heat exchange unit group, and at least two sets of the heat exchange unit groups are stacked in the gas flow direction.

[0019] An air drying apparatus according to a second aspect of the present invention includes:

[0020] The housing has a fan inside, and a heating fin assembly is provided above the air outlet of the fan. The housing has an air outlet located above the heating fin assembly.

[0021] As described above, the heat exchanger structure is located inside the housing and is separated from the heating fin assembly. The side wall of the housing is provided with an air inlet for supplying air to each heat exchange unit. An air intake passage is provided between the heat exchanger structure and the fan.

[0022] An indoor air conditioning unit according to a third aspect of the present invention includes:

[0023] An indoor cabinet is equipped with a fan inside. A heating fin assembly is provided above the air outlet of the fan. An air outlet is provided above the heating fin assembly in the indoor cabinet.

[0024] As described above, the heat exchanger structure is located inside the indoor cabinet and is separated from the heating fin assembly. The side wall of the indoor cabinet is provided with an indoor air inlet for supplying air to each heat exchange unit. An air intake passage is provided between the heat exchanger structure and the fan.

[0025] According to one embodiment of the present invention, there are two heat exchanger structures, namely a first heat exchanger structure and a second heat exchanger structure. The first heat exchanger structure and the second heat exchanger structure are respectively located on opposite sides of the fan. The indoor cabinet is provided with an indoor air inlet for supplying air to the first heat exchanger structure, and the indoor cabinet is also provided with an outdoor air inlet for supplying air to the second heat exchanger structure. The heating fin assembly is provided with the partition between it and the two heat exchanger structures, and the first heat exchanger structure and the second heat exchanger structure are respectively provided with the air intake passage between them and the fan.

[0026] According to one embodiment of the present invention, the air outlet is connected to the upper side of the panel of the indoor cabinet, the panel is provided with a wind deflector strip corresponding to the air outlet, and a temperature sensor is provided at the air outlet.

[0027] An air conditioning system according to a fourth aspect of the present invention includes:

[0028] The outdoor unit of the air conditioner is equipped with an outdoor heat exchanger.

[0029] As mentioned above, the indoor unit of an air conditioner;

[0030] The outdoor heat exchanger and the heat exchange tubes of the heating fin assembly are connected through refrigerant pipelines.

[0031] According to one embodiment of the present invention, the outdoor heat exchanger is covered with an insulation shell, the insulation shell is filled with a heat-absorbing and heat-insulating liquid, a coil is provided at the heating fin assembly, the insulation shell is connected to the coil through a liquid pipeline, and a drive pump is provided on the liquid pipeline.

[0032] According to one embodiment of the present invention, the outdoor unit of the air conditioner is provided with a first outdoor heat exchanger and a second outdoor heat exchanger. The first outdoor heat exchanger is connected to the heat exchange tube of the heat exchanger structure through a first refrigerant pipeline, and the second outdoor heat exchanger is connected to the heat exchange tube of the heating fin assembly through a second refrigerant pipeline. The first outdoor heat exchanger is covered with a first insulation shell, and the second outdoor heat exchanger is covered with a second insulation shell. Both the first and second insulation shells are filled with heat-absorbing and heat-insulating liquid. A first coil is provided at the heat exchanger structure, and the first insulation shell is connected to the first coil through a first liquid pipeline. A first drive pump is provided on the first liquid pipeline. A second coil is provided at the heating fin assembly, and the second insulation shell is connected to the second coil through a second liquid pipeline. A second drive pump is provided on the second liquid pipeline.

[0033] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0034] The heat exchanger structure provided in the first aspect of the present invention employs fins on heat exchange tubes, with each heat exchange tube segment having a plurality of spaced fins spaced along the axial direction. All fins on one heat exchange tube segment and all fins on adjacent heat exchange tube segments are interlocked into the gaps between adjacent fins, so that each fin on one heat exchange tube segment partially extends into the gaps between every two adjacent fins on another heat exchange tube segment, forming a uniformly spaced and densely distributed airflow path. The labyrinthine design of the airflow path ensures that the air does not take shortcuts when passing through the airflow path. The air fully contacts the fins as it passes through the gaps in the fins. The refrigerant flowing in the heat exchange tubes cools the fins. When the air is cooled, the water vapor in the air condenses into water droplets, which flow along the water guide plate and are collected in the drain trough. This results in a rapid decrease in air humidity and a rapid increase in dryness after passing through the heat exchanger structure. By appropriately heating the dried air to a temperature suitable for the human body, comfortable dry indoor air can be provided to the user. In addition, the condensate in the drainage trough can be collected and utilized, for example, by purifying the collected condensate for use as domestic water. This recycled water resource is especially valuable in water-scarce areas.

[0035] The air drying device provided in the second aspect of the present invention, by setting the heat exchanger structure provided in the first aspect in the shell, can quickly reduce the humidity in the air and improve the dryness of the air by passing through the heat exchanger structure. The dried air is heated by the heating fin assembly. Only a small amount of heat is needed to quickly heat the dried air to the required suitable temperature and supply it to the room to improve human comfort.

[0036] The air conditioner indoor unit provided in the third aspect of the present invention, by setting the heat exchanger structure provided in the first aspect in the indoor unit cabinet, can quickly reduce the humidity in the air and increase the dryness of the air by passing through the heat exchanger structure. The dried air is heated by the heating fin assembly. Only a small amount of heat is needed to quickly heat the dried air to the required suitable temperature and supply it to the room from the air outlet to improve human comfort.

[0037] The air conditioning system provided in the fourth aspect of the present invention includes an indoor unit of the air conditioning system of the third aspect, which has all the advantages of the above-mentioned indoor unit of the air conditioning system, and will not be repeated here. In addition, by setting an insulation shell outside the outdoor heat exchanger and filling the insulation shell with heat-absorbing and heat-insulating liquid, and leading the heat-absorbing and heat-insulating liquid to the heating fin assembly, the heat of the outdoor heat exchanger can be fully utilized, and the heat previously dissipated into the air by the outdoor heat exchanger can be collected and used to heat the heating fin assembly. As a result, the heat required to heat the heating fin assembly can be reduced, thereby saving energy, saving electricity, and improving energy efficiency.

[0038] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a simplified structural diagram of the heat exchange unit provided in an embodiment of the present invention, wherein the surface of the fins faces the paper.

[0041] Figure 2 This is a simplified structural diagram of the heat exchange unit provided in an embodiment of the present invention, wherein the side surface of the fins faces the paper.

[0042] Figure 3 This is a schematic diagram of the structure of an air drying device provided in an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of a heat exchanger structure provided in one embodiment of the present invention for use in an air conditioning indoor unit;

[0044] Figure 5 This is a schematic diagram of a heat exchanger structure for use in an air conditioner indoor unit, provided by another embodiment of the present invention.

[0045] Figure 6This is a schematic diagram of the structure of an outdoor air conditioner unit provided in one embodiment of the present invention.

[0046] Figure label:

[0047] 10. Heat exchange unit; 11. Heat exchange tube section; 12. Fin; 121. Inclined surface; 13. Pipe joint; 14. Water guide plate; 15. Drainage trough; 20. Heat exchange unit group; 30. Indoor cabinet; 31. Indoor air inlet; 32. Outdoor air inlet; 33. Air intake passage; 34. Fan; 35. Baffle; 36. Heating fin group; 37. Air outlet; 38. Wind deflector; 40. Shell; 41. Water tank; 50. Outdoor air conditioning unit; 51. First outdoor heat exchanger; 52. Second outdoor heat exchanger; 53. First insulation shell; 54. Second insulation shell; 55. Compressor. Detailed Implementation

[0048] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0049] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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 the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0051] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Reference Figures 1 to 2 The first aspect of the present invention provides a heat exchanger structure, including at least one set of heat exchange units 10, each set of heat exchange units 10 mainly including heat exchange tubes, fins 12 and water guide plates 14.

[0054] Specifically, the heat exchange tubes include at least two heat exchange tube segments 11 arranged side by side. "Side by side" here means that the axes of multiple heat exchange tube segments 11 are arranged parallel to each other, preferably arranged vertically side by side. The heat exchange tube segments 11 are typically straight tubes. After the fins 12 are installed on the heat exchange tube segments 11, the ends of adjacent heat exchange tube segments 11 are connected sequentially by pipe joints 13. The pipe joints 13 are similar to a U-shape, with each end of the U-shape connecting to the ends of two heat exchange tube segments 11. Taking three heat exchange tube segments 11 as an example, the first end of the first heat exchange tube segment 11 is connected to the first end of the second heat exchange tube segment 11 through one pipe joint 13, and the second end of the second heat exchange tube segment 11 is connected to the second end of the third heat exchange tube segment 11 through another pipe joint 13, ultimately forming an S-shaped, meandering coil. The pipe joints 13 can be welded to the heat exchange tube segments 11, providing convenient and reliable connections.

[0055] Specifically, such as Figure 2As shown, each heat exchange tube segment 11 is fitted with several spaced fins 12 along the axial direction. The spacing between adjacent fins 12 should not be too large, ensuring it is about 2mm. The number of fins 12 installed on each heat exchange tube segment 11 depends on the length of the heat exchange tube segment 11, and is not specifically limited here. All the fins 12 on one heat exchange tube segment 11 and all the fins 12 on its adjacent heat exchange tube segment 11 are interwoven into the gaps between adjacent fins 12, so that each fin 12 on one heat exchange tube segment 11 partially extends into the gaps between every two adjacent fins 12 on another heat exchange tube segment 11; forming a staggered arrangement of all gaps on one row of fins 12 and all gaps on the adjacent rows of fins 12, with some overlap, forming a meandering, labyrinthine airflow path.

[0056] Specifically, such as Figure 1 As shown, the water guide plate 14 is fixedly attached to the outside of all the fins 12 of at least one heat exchange tube segment 11. It can be understood that if each heat exchange tube segment 11 is provided with a water guide plate 14 on its outside, the condensate generated after the fins 12 on each heat exchange tube segment 11 come into contact with the air will be guided by the corresponding water guide plate 14. Of course, in order to simplify the installation and save costs, multiple heat exchange tube segments 11 arranged in parallel can share one water guide plate 14. For example, two heat exchange tube segments 11 or three heat exchange tube segments 11 can share one water guide plate 14. After the fins 12 on the heat exchange tube segments 11 that need to share the water guide plate 14 are installed, the water guide plate 14 is fixedly clipped onto the outside of the fins 12 of the multiple heat exchange tube segments 11. The specific installation method of the water guide plate 14 is not limited in this embodiment, as long as it can be ensured that the water guide plate 14 is in close contact with all the fins 12 and is installed reliably. In this embodiment, a drainage trough 15 is provided downstream of the water guide plate 14 to collect condensate water condensed on the fins 12. The condensate water flows downward under gravity and is collected in the drainage trough 15. The condensate water in the drainage trough 15 can be collected and utilized, for example, the collected condensate water can be purified and used as domestic water, especially in water-scarce areas where this recovered water resource is very valuable. The amount of water recovered is proportional to the operating time of the heat exchanger. For areas with high water demand, the operating time of the heat exchanger can be extended to increase the amount of water collected.

[0057] In this embodiment, the heat exchanger structure employs fins 12 on the heat exchange tubes, with each heat exchange tube segment 11 having a plurality of spaced-apart fins 12 axially mounted. All fins 12 on one heat exchange tube segment 11 and all fins 12 on adjacent heat exchange tube segments 11 are interlocked into the gaps between adjacent fins 12, ensuring that each fin 12 on one heat exchange tube segment 11 partially extends into the gaps between every two adjacent fins 12 on another heat exchange tube segment 11. This forms a uniformly spaced and densely distributed airflow path. The labyrinthine design of the airflow path... The design creates a meandering, non-straight airflow path, preventing air from taking shortcuts. Air flows through the gaps in the fins 12, ensuring full contact with them. Refrigerant flowing through the heat exchange tubes cools the fins 12. As the air cools, water vapor condenses into droplets, which flow along the guide plate 14 and are collected in the drain trough 15. This rapidly reduces humidity and increases dryness of the air after passing through the heat exchanger. With proper heating and drying to a comfortable temperature, the air can provide users with comfortable, dry indoor air.

[0058] It should be noted that mounting holes are machined during the processing of fin 12. The diameter of the mounting holes is slightly larger than the outer diameter of the heat exchange tube section 11. This allows for the rapid batch assembly of fin 12 using mechanized automatic assembly equipment, improving assembly efficiency and accuracy. After the fin 12 is assembled, the heat exchange tube is expanded. The expansion process involves applying pressure to the heat exchange tube using a tube expander, causing the tube diameter to expand. This eliminates or reduces the gap between the heat exchange tube and the fin 12, ensuring that the fin 12 is securely fastened to the heat exchange tube.

[0059] To facilitate the condensate flow in the same direction, according to one embodiment of the present invention, the fin 12 is provided with at least one water guiding surface, which is set as an inclined surface 121. The inclined surface 121 is inclined from the side away from the water guiding plate 14 to the side close to the water guiding plate 14, and the lowest point of the inclined surface 121 is close to the water guiding plate 14. Thus, the condensate will flow along the inclined surface 121 to the water guiding plate 14 under the action of gravity, and be guided by the water guiding plate 14 into the drainage trough 15 for collection.

[0060] According to one embodiment of the present invention, both sides of the fin 12 are configured as water guiding surfaces, which are inclined surfaces 121. The inclination direction of the pair of inclined surfaces 121 is from the side away from the water guiding plate 14 to the side closer to the water guiding plate 14, and the lowest point of the inclined surface 121 is close to the water guiding plate 14. Thus, under the action of gravity, the condensate flows along the pair of inclined surfaces 121 to the water guiding plate 14 and is guided by the water guiding plate 14 into the drainage trough 15 for collection. The drainage trough 15 below each water guiding plate 14 is connected to a water collection device through a pipeline. For example, a pipeline is provided on one side of each drainage trough 15, and all pipelines are connected to the water collection device, which can be a water collection tank, water collection bucket, etc. The collected condensate can be used for direct irrigation of crops or purified for domestic use. By utilizing this part of the water resources, the amount of tap water used in households can be reduced. Especially for arid and water-scarce areas, the utilization of this water source can solve many problems.

[0061] According to one embodiment of the present invention, the fin 12 is rhomboid in shape, and the two oblique sides of the rhomboid form a pair of water guiding surfaces of the fin 12. The fin 12 is directly processed into a rhomboid shape, and the two oblique sides of the rhomboid directly form a pair of water guiding surfaces, which is convenient to process.

[0062] According to one embodiment of the present invention, at least one surface of the water guide plate 14 that is attached to the fin 12 is coated with a hydrophobic material layer, which may be a polytetrafluoroethylene coating; thereby, condensate flowing through the water guide plate 14 will not adhere to the surface of the water guide plate 14 and can flow completely down the water guide plate 14. Of course, the water guide plate 14 may be made directly of polytetrafluoroethylene material, and this embodiment does not specifically limit it.

[0063] To reduce the number of water guide plates 14 and the frequency of installation, each water guide plate 14 is fixedly attached to the outside of all fins 12 of at least two adjacent heat exchange tube sections 11.

[0064] To ensure sufficient heat exchange area and air circulation area, according to one embodiment of the present invention, the heat exchanger structure includes at least two sets of heat exchange units 10, all of which are arranged side by side, for example, according to... Figure 4 The heat exchange units 10 are arranged side-by-side in the direction shown, and the heat exchange tube segments 11 in each group of heat exchange units 10 are arranged side-by-side vertically, forming a three-dimensional heat exchange structure with a certain length, width, and height. Preferably, when the top surface of the fins 12 of multiple groups of heat exchange units 10 is inclined, the inclined surfaces are on a single inclined line when multiple groups of heat exchange units 10 are arranged side-by-side, thus forming a shape like... Figure 4The rhomboid structure shown allows air to enter from the top and exit from the bottom of the three-dimensional heat exchange structure. Air flows along the airflow path and fully contacts the fins 12, ensuring high dehumidification efficiency and good dehumidification effect. Furthermore, the water guide plates 14 of each heat exchange unit 10 are located on the same side, facilitating the directing of condensate to the same side for easy collection. All the fins 12 of one heat exchange unit 10 are in close contact with the water guide plates 14 of the adjacent heat exchange unit 10, forming a compact and orderly arranged heat exchanger structure.

[0065] To ensure the water guiding effect of the water guide plate 14, according to one embodiment of the present invention, the angle between the water guide plate 14 and the horizontal plane is between 15 and 90 degrees. Figure 4 As shown, the water guide plate 14 forms a 90-degree angle with the horizontal plane, as... Figure 4 As shown, the water guide plate 14 has an angle of 15 degrees with the horizontal plane.

[0066] According to another embodiment of the present invention, at least two sets of heat exchange units 10 arranged side by side form a heat exchange unit group 20. In the gas flow direction, at least two sets of stacked heat exchange unit groups 20 are provided. This structure is suitable for occasions where a large air cooling gradient is required, such as from 36 degrees to 12 degrees. Usually, a single heat exchange unit group 20 is difficult to achieve such a large cooling range, so at least two sets of heat exchange unit groups 20 are required to achieve stepped cooling.

[0067] An air drying device according to a second aspect of the present invention, such as a dehumidifier or a moisture generator. See also Figure 3 It includes a shell 40, a fan 34, and the aforementioned heat exchanger structure. Details are as follows:

[0068] A fan 34 is installed inside the housing 40. The fan 34 can be located at the bottom of the housing 40 and supported by the bottom. A heating fin assembly 36 is provided above the air outlet of the fan 34 for heating the dried air. An air outlet 37 is located above the heating fin assembly 36 in the housing 40, for example, at the top of the housing 40, for discharging the heated dried air. A baffle 38 is provided at the air outlet 37 for adjusting the airflow direction. Since the condensed dried air is at a low temperature, it cannot be discharged directly; therefore, it needs to be heated to a suitable human body temperature before being discharged. A conventional heat exchanger can be used for the heating fin assembly 36.

[0069] The heat exchanger structure is located inside the shell 40, and a partition 35 is provided between it and the heating fin assembly 36 to separate the two and avoid mutual interference. The partition 35 can be a plate made of heat insulation material and is installed between the heating fin assembly 36 and the heat exchanger structure. The side wall of the shell 40 is provided with an air inlet for supplying air to each heat exchange unit 10. Air enters the heat exchange unit 10 through the air inlet and exits the heat exchange unit 10. Dehumidification is carried out in the heat exchange unit 10. The condensate of the dehumidified air can be collected in the water tank 41 below the heat exchange unit 10. The water tank 41 can be installed on the side wall of the shell 40 in a pull-out form, so that when the water level in the water tank 41 reaches a certain height, the water can be emptied in time and the water tank 41 can be put back in its original position for the next use. An air inlet passage 33 is provided between the heat exchanger structure and the fan 34. The dehumidified dry air enters the space where the fan 34 is located through the air inlet passage 33. The fan 34 blows the dry air toward the heating fin assembly 36 for heating. After being heated to a suitable temperature, the air is discharged from the air outlet 37.

[0070] It should be noted that the housing 40 in this embodiment can be designed into various shapes as needed, such as cylindrical, cuboid, etc.

[0071] The air drying device in this embodiment uses the heat exchanger structure provided in the housing 40 to quickly reduce the humidity of the air and improve the dryness of the air. The dried air is heated by the heating fin assembly 36. Since the water vapor content in the air is very low, only a small amount of heat is needed to quickly heat the dried air to the required suitable temperature and supply it to the room to improve human comfort.

[0072] An indoor unit for an air conditioner according to a third aspect of the present invention, such as Figure 4 and Figure 5 As shown, it includes:

[0073] The indoor cabinet 30 houses a fan 34, which can be an axial fan for its compact size, but other types of fans can also be selected. The fan 34 can be installed at the bottom of the indoor cabinet 30, supported by the bottom surface of the cabinet. A heating fin assembly 36 is located above the air outlet of the fan 34 to heat the dried air. An air outlet 37 is located above the heating fin assembly 36 in the indoor cabinet 30 to exhaust the heated, dried air. The air outlet 37 is preferably located on the upper side of the panel of the indoor cabinet 30, which faces the room. The sides of the panel form the side walls of the indoor cabinet 30, the opposite side forms the back panel, the top of the panel is the top plate, and the bottom is the bottom plate. Because the condensed, dried air is at a low temperature, it cannot be directly exhausted; therefore, it needs to be heated to a comfortable human body temperature before being discharged. The heating fin assembly 36 can use a conventional heating structure, such as electric heating or internal high-temperature refrigerant heating.

[0074] As described above, the heat exchanger structure is located inside the indoor cabinet 30. In the case of a single heat exchanger structure, the heat exchanger structure is located on one side of the indoor cabinet 30, and a partition 35 is provided between it and the heating fin assembly 36 to separate them and avoid mutual interference. The partition 35 can be a plate made of heat insulation material and is installed between the heating fin assembly 36 and the heat exchanger structure. The side wall of the indoor cabinet 30 is provided with an indoor air inlet 31 to supply air to each heat exchange unit 10. Air enters the heat exchange unit 10 through the air inlet, flows along the air passage formed by the gap between the fins 12, and condenses after fully contacting the fins 12. The condensate is guided by the water guide plate 14 and collected in the drain trough 15, and can be discharged outdoors through the drain pipe. An air intake passage 33 is provided between the heat exchanger structure and the fan 34. The dried air flows out of the heat exchange unit 10 and enters the area where the fan 34 is located along the air intake passage 33. When air enters the air inlet, the air pressure of the fan 34 creates a certain negative pressure at the air inlet, causing the air to flow along the heat exchange unit 10 from one side to the other side closer to the fan 34, thus enabling the air to flow in a directional manner.

[0075] To improve air dehumidification efficiency, according to another embodiment of the present invention, there are two heat exchanger structures, namely a first heat exchanger structure and a second heat exchanger structure. The first heat exchanger structure and the second heat exchanger structure are located on opposite sides of the fan 34. The indoor cabinet 30 is provided with an indoor air inlet 31 for supplying air to the first heat exchanger structure. Indoor air enters the first heat exchanger structure directly from the indoor air inlet 31. The indoor cabinet 30 is also provided with an outdoor air inlet 32 ​​for supplying air to the second heat exchanger structure. The outdoor air inlet 32 ​​is connected to the outside and is used to draw outdoor air. In the second heat exchanger structure, two heat exchanger structures simultaneously dehumidify the air, which can greatly improve the dehumidification efficiency and quickly increase the dryness of the indoor air in a short time after startup. There are partitions between the heating fin assembly 36 and the two heat exchanger structures. There are air inlet passages 33 between the first heat exchanger structure and the second heat exchanger structure and the fan 34. The two dried airs enter the space where the fan 34 is located from the air inlet passages 33 on the corresponding sides, and then enter the heating fin assembly 36 for heating treatment, and are blown into the room from the air outlet 37.

[0076] According to one embodiment of the present invention, the air outlet 37 is connected to the upper side of the panel of the indoor cabinet 30, for example, located near the top of the panel. A baffle strip 38 is provided on the panel corresponding to the air outlet 37. The air outlet direction can be adjusted by adjusting the angle of the baffle strip 38. A temperature sensor is provided at the air outlet 37 to detect the temperature at the air outlet 37 and feed it back to the air conditioning control system to adjust the heating temperature of the heating fin assembly 36. A humidity sensor can also be provided at the air outlet 37, and a humidity display window is installed on the panel to simultaneously display humidity and temperature.

[0077] In this embodiment, the indoor unit of the air conditioner has a heat exchanger structure provided in the first aspect installed in the indoor unit cabinet 30. The air can quickly reduce the humidity in the air and increase the dryness of the air by passing through the heat exchanger structure. The dried air is heated by the heating fin assembly 36. Because the dry air has low water content, it is easy to heat. Only a small amount of heat is needed to quickly heat the dried air to the required suitable temperature and supply it to the room from the air outlet 37 to ensure that the indoor air is dry and the air humidity is within the range that is comfortable for the human body.

[0078] The shape of the indoor cabinet 30 can be designed in various ways according to market demand, including but not limited to cylindrical and cuboid shapes.

[0079] An air conditioning system according to a fourth aspect of the present invention, referring to Figure 6 It includes the outdoor unit 50 of the air conditioner and the aforementioned indoor unit of the air conditioner:

[0080] The outdoor unit 50 of the air conditioner contains an outdoor heat exchanger; of course, the outdoor unit 50 also contains a compressor, a reversing valve, a throttling device, etc. The compressor is connected to the outdoor heat exchanger and the heat exchange tubes installed in the heat exchanger structure of the indoor unit of the air conditioner through the reversing valve. The throttling device is located between the outdoor heat exchanger and the indoor heat exchanger structure. Its working principle is the same as that of a regular air conditioner, and will not be described in detail here.

[0081] The outdoor heat exchanger and the heat exchange tubes of the heating fin assembly 36 are connected through a refrigerant pipeline. A throttling device, such as a capillary tube, is installed on the refrigerant pipeline between the outdoor heat exchanger and the heat exchange tubes of the heat exchanger structure. During air conditioning cooling, the high-temperature refrigerant of the compressor first passes through the outdoor heat exchanger and the heat exchange tubes of the heating fin assembly 36. The outdoor heat exchanger is at a high temperature, and the heating fin assembly 36 is in a heating state. The high-temperature refrigerant passes through the capillary tube for throttling and pressure reduction before entering the heat exchange tubes of the heat exchanger structure. The heat exchange tubes of the heat exchanger structure are at a low temperature and are used to condense the air. The specific condensation principle has been introduced above and will not be repeated here. The condensed dry air is heated to the set temperature by the heating fin assembly 36.

[0082] To recover and utilize heat from the outdoor heat exchanger and reduce energy waste, according to one embodiment of the present invention, the outdoor heat exchanger is fitted with an insulating shell, which is filled with a heat-absorbing and insulating liquid, such as ethylene glycol. A coil is provided at the heating fin assembly 36. Specifically, the coil and the heating fin assembly 36 can be arranged such that the coil is attached to the heating tube of the heating fin assembly 36. The insulating shell is connected to the coil through a liquid pipeline, and a drive pump, which can be a peristaltic pump, is provided on the liquid pipeline. The drive pump delivers the high-temperature heat-absorbing and insulating liquid to the coil to provide heat to the coil. The heat from the coil and the heating fin assembly 36 is used to heat the dried air. Since the coil provides part of the heat, the heat supplied to the heating fin assembly 36 can be reduced, thereby saving energy and electricity consumption.

[0083] The heating tubes (heat exchange tubes) of the heating fin assembly 36 can be connected in parallel or in series with the outdoor heat exchanger. The high-temperature refrigerant of the outdoor heat exchanger can partially or completely enter the heating tubes of the heating fin assembly 36 to provide heat to the heating tubes.

[0084] like Figure 6The diagram shows another embodiment of the outdoor unit 50 of the air conditioner. The outdoor unit 50 is equipped with a first outdoor heat exchanger 51 and a second outdoor heat exchanger 52. The first outdoor heat exchanger 51 is connected to the heat exchange tubes of the heat exchanger structure through a first refrigerant pipeline. The first outdoor heat exchanger 51 is connected to the second outdoor heat exchanger 52 and the compressor 55. Under normal circumstances, the first outdoor heat exchanger 51 cools and the second outdoor heat exchanger 52 heats. The second outdoor heat exchanger 52 is connected to the heat exchange tubes of the heating fin assembly 36 through a second refrigerant pipeline, so that the heating fin assembly 36 heats. The first outdoor heat exchanger 51 is covered with a first insulation shell 53, and the second outdoor heat exchanger 52 is covered with a second insulation shell 54. Both the first insulation shell 53 and the second insulation shell 54 are filled with heat-absorbing and heat-insulating liquid. A first coil is provided at the heat exchanger structure. The first insulation shell 53 is connected to the first coil through a first liquid pipeline to recover and utilize the cooling capacity of the first outdoor heat exchanger 51 and supply it to the heat exchange tubes of the heat exchanger structure. A first drive pump is installed on the first liquid pipeline to drive the heat-absorbing insulating liquid in the first insulation shell 53 to the area where the heat exchanger structure is located, thereby making full use of the cooling capacity and reducing energy waste. A second coil is installed at the heating fin assembly 36. The second insulation shell 54 is connected to the second coil through the second liquid pipeline. A second drive pump is installed on the second liquid pipeline to drive the heat-absorbing insulating liquid in the second insulation shell 54 to the area where the heating fin assembly is located, thereby recovering and utilizing the heat from the second outdoor heat exchanger 52 and supplying it to the heating fin assembly 36. This reduces the amount of heat supplied to the heating fin assembly 36, thereby saving energy and electricity consumption. Of course, when the cooling capacity at the heat exchanger structure is sufficient and no additional supply is required, the first drive pump does not need to be started. In this case, the fan above the first insulation shell 53 can be started to release the cooling capacity to the outdoor environment. Similarly, when no additional heat supply is required at the heating fin assembly, the second drive pump does not need to be started. In this case, the fan above the second insulation shell 54 can be started to release the heat to the outdoor environment.

[0085] Understandably, the specific temperature to which the heating fin assembly 36 heats the air depends on the user's selection. For example, in summer, if the user sets the indoor temperature to 27 degrees Celsius, the heating fin assembly 36 will heat the air to 27 degrees Celsius in cooling mode; in winter, if the user sets the indoor temperature to 27 degrees Celsius, the heating fin assembly 36 will heat the air to 27 degrees Celsius in heating mode.

[0086] The air conditioning system of the present invention will be described below with reference to a specific embodiment. Figure 4 and Figure 5 :

[0087] The air conditioning system of this embodiment is used in areas with high air humidity, such as South China, Central China and East China. These areas are especially hot and humid in summer, which makes people feel uncomfortable. Taking an outdoor temperature of 38 degrees Celsius and a humidity of 70% as an example, the humid air at 38 degrees Celsius first enters the indoor cabinet 30 through the indoor air inlet 31 and the outdoor air inlet 32, respectively. The indoor humid air is cooled, condensed, and dehumidified by the first heat exchanger structure, and the outdoor humid air is cooled, condensed, and dehumidified by the second heat exchanger structure. In order to achieve temperature gradient cooling, the first heat exchanger structure and the second heat exchanger structure are respectively equipped with two sets of heat exchange unit groups 20. The first set of heat exchange unit groups 20 can reduce the temperature from 38 degrees Celsius to 16-18 degrees Celsius, and the second set of heat exchange unit groups 20 can reduce the temperature to 8-10 degrees Celsius. At this time, the air has undergone two condensation processes, removing most of the water vapor in the air, and the humidity has been reduced to 40%. The dry air is then blown by the fan 34 to the heating fin group 36 for heating. The temperature that is generally comfortable for the human body is 26-28 degrees Celsius, so the dry air can be heated to 26-28 degrees Celsius and then blown into the room through the air outlet 37. At this time, the air is dry and suitable, and the humidity is maintained at about 40%, which is comfortable for the human body. The specific temperature and humidity settings can be configured by the user. Condensate generated during dehumidification is first guided by the water guide plate 14 to the drain trough 15 for collection, and then centrally discharged outdoors through the drain pipe. This air conditioning system not only regulates temperature but also humidity, requires minimal modification to existing air conditioning structures, offers good performance, and maintains controllable costs.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0089] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A heat exchanger structure, characterized in that, It includes at least one set of heat exchange units (10), each set of said heat exchange units (10) includes: The heat exchange tube includes at least two heat exchange tube segments (11) arranged side by side, and the ends of adjacent heat exchange tube segments (11) are connected in sequence by a pipe joint (13); Fins (12), each heat exchange tube segment (11) is provided with a number of spaced fins (12) along the axial direction. All fins (12) on one heat exchange tube segment (11) and all fins (12) on the adjacent heat exchange tube segment (11) are interlocked into the gap between adjacent fins (12), so that each fin (12) on one heat exchange tube segment (11) partially extends into the gap between each pair of adjacent fins (12) on another heat exchange tube segment (11); forming a row of fins (12) with all gaps on the adjacent row of fins (12) staggered and partially overlapping, forming a meandering labyrinthine airflow path; A water guide plate (14) is fixedly attached to the outside of all the fins (12) of at least one heat exchange tube section (11), and a drainage groove (15) is provided downstream of the water guide plate (14) to collect condensate.

2. The heat exchanger structure according to claim 1, characterized in that, The fin (12) is provided with at least one water guiding surface, which is set as an inclined surface (121). The inclined surface (121) is inclined from the side away from the water guiding plate (14) to the side close to the water guiding plate (14), and the lowest point of the inclined surface (121) is close to the water guiding plate (14).

3. The heat exchanger structure according to claim 1, characterized in that, Both sides of the fin (12) are configured as water guiding surfaces, and the water guiding surfaces are configured as inclined surfaces (121). The inclination direction of the pair of inclined surfaces (121) is from the side away from the water guiding plate (14) to the side close to the water guiding plate (14), and the lowest point of the inclined surface (121) is close to the water guiding plate (14).

4. The heat exchanger structure according to claim 3, characterized in that, The fin (12) is rhomboid in shape, and the two oblique sides of the rhombus form a pair of water-guiding surfaces of the fin (12).

5. The heat exchanger structure according to claim 1, characterized in that, The surface of the water guide plate (14) at least on the side attached to the fin (12) is coated with a hydrophobic material layer; Each of the water guide plates (14) is fixedly attached to the outside of all the fins (12) of at least two adjacent heat exchange tube sections (11).

6. The heat exchanger structure according to any one of claims 1 to 5, characterized in that, It includes at least two sets of heat exchange units (10), all of which are arranged side by side, with the water guide plate (14) of each set of heat exchange units (10) located on the same side, and all the fins (12) of one set of heat exchange units (10) abutting against the water guide plate (14) of the adjacent set of heat exchange units (10). The drainage channels (15) below each of the water guide plates (14) are collected into the water collection device via pipelines.

7. The heat exchanger structure according to claim 6, characterized in that, The angle between the water guide plate (14) and the horizontal plane is 15-90 degrees.

8. The heat exchanger structure according to claim 6, characterized in that, At least two sets of the heat exchange units (10) form a heat exchange unit group (20), and at least two sets of the heat exchange unit groups (20) are stacked in the gas flow direction.

9. An air drying device, characterized in that, include: The housing has a fan (34) inside, and a heating fin assembly (36) is provided above the air outlet of the fan (34). The housing has an air outlet (37) above the heating fin assembly (36). The heat exchanger structure as described in any one of claims 1-8 is provided inside the housing and is separated from the heating fin group (36) by a partition (35). The side wall of the housing is provided with an air inlet for supplying air to each heat exchange unit (10). An air intake passage (33) is provided between the heat exchanger structure and the fan (34).

10. An indoor unit for an air conditioner, characterized in that, include: An indoor cabinet (30) is provided with a fan (34) inside. A heating fin assembly (36) is provided above the air outlet of the fan (34). An air outlet (37) is provided above the heating fin assembly (36) of the indoor cabinet (30). The heat exchanger structure as described in any one of claims 1-8 is located inside the indoor cabinet (30) and is separated from the heating fin assembly (36) by a partition (35). The side wall of the indoor cabinet (30) is provided with an indoor air inlet (31) for supplying air to each heat exchange unit (10). An air intake passage (33) is provided between the heat exchanger structure and the fan (34).

11. The indoor unit of the air conditioner according to claim 10, characterized in that, There are two heat exchanger structures, namely a first heat exchanger structure and a second heat exchanger structure. The first heat exchanger structure and the second heat exchanger structure are located on opposite sides of the fan (34). The indoor cabinet (30) is provided with an indoor air inlet (31) for supplying air to the first heat exchanger structure. The indoor cabinet (30) is also provided with an outdoor air inlet (32) for supplying air to the second heat exchanger structure. The heating fin assembly (36) is provided with a partition (35) between it and the two heat exchanger structures. The first heat exchanger structure and the second heat exchanger structure are provided with an air intake passage (33) between them and the fan (34).

12. The indoor unit of the air conditioner according to claim 10 or 11, characterized in that, The air outlet (37) is connected to the upper side of the panel of the indoor cabinet (30). The panel is provided with a wind deflector strip (38) corresponding to the air outlet (37), and a temperature sensor is provided at the air outlet (37).

13. An air conditioning system, characterized in that, include: The outdoor unit of the air conditioner is equipped with an outdoor heat exchanger. The air conditioning indoor unit as described in any one of claims 10-12; The outdoor heat exchanger is connected to the heat exchange tube of the heating fin assembly (36) via a refrigerant pipeline.

14. The air conditioning system according to claim 13, characterized in that, The outdoor heat exchanger is covered with an insulation shell, which is filled with heat-absorbing and heat-insulating liquid. A coil is provided at the heating fin assembly (36). The insulation shell is connected to the coil through a liquid pipeline, and a drive pump is provided on the liquid pipeline.

15. The air conditioning system according to claim 13, characterized in that, The outdoor unit of the air conditioner is provided with a first outdoor heat exchanger and a second outdoor heat exchanger. The first outdoor heat exchanger is connected to the heat exchange tube of the heat exchanger structure through a first refrigerant pipeline. The second outdoor heat exchanger is connected to the heat exchange tube of the heating fin assembly (36) through a second refrigerant pipeline. The first outdoor heat exchanger is covered with a first insulation shell, and the second outdoor heat exchanger is covered with a second insulation shell. Both the first and second insulation shells are filled with heat-absorbing and heat-insulating liquid. The heat exchanger structure is provided with a first coil. The first insulation shell is connected to the first coil through a first liquid pipeline. A first drive pump is provided on the first liquid pipeline. The heating fin assembly (36) is provided with a second coil. The second insulation shell is connected to the second coil through a second liquid pipeline. A second drive pump is provided on the second liquid pipeline.

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