Bidirectional flow fresh air dehumidifier

Abstract

The bidirectional flow fresh air dehumidifier comprises a machine box, a total heat exchange core, a dehumidification assembly, an air supply fan and an air exhaust fan, the machine box is provided with a fresh air inlet, an air exhaust opening, an air supply opening and an air return opening, the fresh air inlet and the air supply opening are communicated to form a fresh air channel, and the air return opening and the air exhaust opening are communicated to form an air return channel; the fresh air duct and the return air duct at least partially intersect to form an intersection area, and the total heat exchange core is arranged in the intersection area. According to the designed bidirectional flow fresh air dehumidifier, the exhaust fan and the shortened total heat exchange core are spatially arranged in an overlapped mode, that is, the orthographic projection of the exhaust fan and the orthographic projection of the total heat exchange core on the side wall in the width direction of the machine box at least partially coincide, and the length of the total heat exchange core is smaller than half of the width of the machine box; the length of the machine case is effectively reduced, the whole machine is more compact and light, the installation space is saved, the space utilization rate is improved, the product appearance is improved, and the requirements of more places with limitation on the installation space can be met.

Description

Technical Field

[0001] The invention relates to the technical field of air processing equipment, in particular to a two-way flow fresh air dehumidifier. Background Art

[0002] As people's requirements for indoor air quality continue to increase, fresh air systems have gradually become standard in modern buildings. Fresh air systems can continuously introduce fresh air from the outdoors into the room and exhaust dirty air from the room, effectively improving indoor air quality and protecting people's health.

[0003] At present, among the many types of fresh air systems, the two-way flow fresh air system is highly favored because it can simultaneously introduce fresh air and discharge return air, ensuring more efficient indoor air circulation. At the same time, in order to further improve energy utilization efficiency, the two-way flow fresh air system is usually equipped with a full heat exchange core, which uses the energy of exhaust air to preheat or precool the fresh air, reduce air conditioning load, and save energy.

[0004] However, existing ceiling-mounted two-way fresh air dehumidifiers have some design deficiencies. In order to accommodate the fresh air duct and the return air duct, they usually adopt an upper and lower layered structure, which results in a thicker chassis and occupies more ceiling space, which is not conducive to installation and overall aesthetics, and also limits its application in some places with high requirements for installation space.

[0005] Therefore, how to reduce the volume of the ceiling-mounted two-way flow fresh air dehumidifier, especially reduce its overall size, make it more compact and lightweight, easy to install and adapt to different application scenarios, has become a technical problem that needs to be solved urgently in this field. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a two-way flow fresh air dehumidifier which effectively reduces the size of the whole machine and makes it more compact and lightweight.

[0007] In order to achieve the above-mentioned purpose, the bidirectional flow fresh air dehumidifier designed by the present invention includes a chassis, a total heat exchange core, a dehumidification component, an air supply fan and an exhaust fan, the chassis is provided with a fresh air inlet, an exhaust port, an air supply port and a return air port, the fresh air inlet is connected with the air supply port to form a fresh air duct, the return air port is connected with the exhaust port to form a return air duct, the fresh air duct and the return air duct at least partially intersect to form an intersection area, the total heat exchange core is arranged in the intersection area; the dehumidification component and the air supply fan are arranged in the fresh air duct; the exhaust fan is arranged in the return air duct; the fresh air inlet, the total heat exchange core, the dehumidification component and the air supply port are arranged in sequence along the length direction of the chassis, and are located in the same plane layer; the air outlet of the exhaust fan is matched with the exhaust port, and the orthographic projections of the exhaust fan and the total heat exchange core on the side wall in the width direction of the chassis at least partially overlap, wherein the length direction of the total heat exchange core is perpendicular to the length direction of the chassis

[0008] Furthermore, the length of the full heat exchange core is less than or equal to half of the width of the chassis.

[0009] Furthermore, a hollow exchange shell is provided in the intersection area, the full heat exchange core is arranged in the exchange shell, and the exchange shell is provided with a first air vent connecting the fresh air inlet and the full heat exchange core, a second air vent connecting the air supply outlet and the full heat exchange core, a third air vent connecting the return air outlet and the full heat exchange core, and a fourth air vent connecting the exhaust outlet and the full heat exchange core; wherein the exhaust fan is located between the exhaust outlet and the fourth vent, and the supply fan is located between the air supply outlet and the second vent.

[0010] Furthermore, the full heat exchange core divides the internal space of the exchange shell into a first chamber, a second chamber, a third chamber and a fourth chamber that are independent of each other, wherein the first chamber and the second chamber are connected through the full heat exchange core, and the third chamber and the fourth chamber are connected through the full heat exchange core; the first chamber is connected to the first vent, the second chamber is connected to the second vent, the third chamber is connected to the third vent, and the fourth chamber is connected to the fourth vent.

[0011] Furthermore, the exchange shell is a rectangular parallelepiped having a first side wall arranged toward the fresh air inlet, a second side wall arranged toward the air supply outlet, and a third side wall arranged toward the exhaust fan, wherein the first air vent is arranged on the first side wall, the second air vent is arranged on the second side wall, and the third air vent and the fourth air vent are both arranged on the third side wall.

[0012] Furthermore, the radial cross-section of the full heat exchange core is hexagonal, and the full heat exchange core has a top surface and a bottom surface that are parallel and opposite to each other, as well as a first surface connected to the top surface and set at an angle, a second surface connected to the bottom surface and set at an angle, a third surface connected to the top surface and set at an angle, and a fourth surface connected to the bottom surface and set at an angle, the first surface is connected to the fourth surface and set at an angle, and the second surface is connected to the third surface and set at an angle; wherein, the first surface, part of the first side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the first cavity; the second surface, part of the second side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the second cavity; the third surface, part of the second side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the third cavity; the fourth surface, part of the first side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the third cavity.

[0013] Furthermore, the exchange shell also includes a fourth side wall arranged parallel to the third side wall, and the fourth side wall is provided with a replacement port for replacing the full heat exchange core, and the full heat exchange core is configured to be able to be pulled out of the exchange shell from the replacement port of the fourth side wall.

[0014] Furthermore, an inspection door panel covering the fourth side wall and the replacement port is provided on one side of the chassis, and the inspection door panel is rotatably connected to the chassis via a detachable pivot mechanism.

[0015] Furthermore, guide grooves are respectively provided on the first side wall and the second side wall, and the connection between the first surface and the fourth surface and the connection between the second surface and the third surface of the full heat exchange core are respectively slidably matched with the corresponding guide grooves.

[0016] Furthermore, a first filter is installed on the first surface, and a second filter is installed on the third surface.

[0017] Furthermore, a fifth cavity is formed between the first side wall of the exchange shell and the inner wall surface of the chassis, an inclined plate is provided in the fifth cavity, the inclined plate separates the fifth cavity to form an independent sixth cavity, the fifth cavity is connected with the first cavity through the first vent, the sixth cavity is connected with the fourth cavity through the fifth vent provided on the first side wall, and a sixth vent connecting the exhaust port and the sixth cavity is provided on the third side wall.

[0018] The two-way flow fresh air dehumidifier designed by the present invention achieves effective reduction in the length of the chassis by arranging the exhaust fan and the shortened full heat exchange core in overlapping space, that is, the orthographic projections of the exhaust fan and the full heat exchange core on the side wall in the width direction of the chassis at least partially overlap, and the length of the full heat exchange core is less than half the width of the chassis, thereby achieving effective reduction in the length of the chassis, making the whole machine more compact and lightweight, saving installation space, improving space utilization, improving product appearance, and being able to meet the needs of more places with limited installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the bidirectional flow fresh air dehumidifier provided in an embodiment of the present application.

[0020] Figure 2 yes Figure 1 3D exploded view of .

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the exchange shell provided in an embodiment of the present application.

[0022] Figure 4 It is a schematic diagram of the air duct provided in the embodiment of the present application.

[0023] Figure 5 yes Figure 4 Right view of .

[0024] Figure 6 yes Figure 4 Stereoscopic view of the section at AA in the middle.

[0025] Figure 7 yes Figure 4 A three-dimensional view of the section at the middle BB.

[0026] Figure 8 It is a schematic diagram of the assembly of the full heat exchange core provided in the embodiment of the present application.

[0027] Fig. 9 It is a schematic diagram of the structure of the third side wall provided in an embodiment of the present application.

[0028] Fig.10 It is a schematic diagram of the replacement of the full heat exchange core provided in the embodiment of the present application.

[0029] Wherein: chassis 10, fresh air inlet 11, exhaust vent 12, air supply vent 13, return air vent 14, fresh air duct 15, return air duct 16, maintenance door panel 17, pivot mechanism 18, circulation duct 19, second air valve 191, full heat exchange core 20, top surface 21, bottom surface 22, first surface 23, first filter 231, second filter 251, second surface 24, third surface 25, fourth surface 26, dehumidification component 30, air supply fan 40, exhaust fan 50, intersection area 60, exchange shell 61, first vent 61a, second vent 61b, third vent 61c, fourth vent 61d, first side wall 611, second side wall 612, third side wall 613, fourth side wall 614, replacement port 615, guide groove 616, first cavity 62, second cavity 63, third cavity 64, fourth cavity 65, fifth cavity 70, inclined plate 71, sixth cavity 80, fifth vent 81, sixth vent 82. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] In a two-way flow fresh air dehumidifier provided in a pair of proportions, its fresh air channel and return air channel adopt an upper and lower layered structure, and the overall thickness of the chassis is relatively large; the full heat exchange core runs through the entire body, resulting in a larger length and width of the chassis, further increasing the overall volume of the chassis.

[0032] The bidirectional fresh air dehumidifier provided in this embodiment is designed to be installed in a ceiling-mounted manner and is suitable for various indoor environments that require fresh air exchange and dehumidification, such as residences, offices, schools, etc. The core of the device lies in its innovative internal structure design and component layout, which realizes efficient fresh air exchange and dehumidification functions while greatly reducing the size of the device.

[0033] like Figures 1 to 10As shown, the bidirectional flow fresh air dehumidifier described in this embodiment includes a chassis 10, a full heat exchange core 20, a dehumidification component 30, an air supply fan 40 and an exhaust fan 50. The chassis 10 is provided with a fresh air inlet 11, an exhaust port 12, an air supply port 13 and a return air port 14. The fresh air inlet 11 is connected with the air supply port 13 to form a fresh air duct 15, and the return air port 14 is connected with the exhaust port 12 to form a return air duct 16. The fresh air duct 15 and the return air duct 16 at least partially intersect to form an intersection area 60. The full heat exchange core 20 is arranged at The intersection area 60; the dehumidification component 30 and the air supply fan 40 are arranged in the fresh air duct 15; the exhaust fan 50 is arranged in the return air duct 16; the fresh air inlet 11, the full heat exchange core 20, the dehumidification component 30 and the air supply port 13 are arranged in sequence along the length direction of the chassis 10, and are located in the same plane layer; the air outlet of the exhaust fan 50 is matched with the exhaust port 12, and the orthographic projections of the exhaust fan 50 and the full heat exchange core 20 on the side wall in the width direction of the chassis 10 at least partially overlap. In other words, the length of the full heat exchange core 20 is less than the width of the chassis 10, and there is a gap between the full heat exchange core 20 and the side wall on one side of the width direction of the chassis 10, and the orthographic projections of the full heat exchange core 20 and the exhaust fan 50 on the side wall in the width direction of the chassis 10 at least partially overlap, so that the length of the chassis 10 can be effectively reduced.

[0034] In this embodiment, the length direction of the full heat exchange core 20 is set to be perpendicular to the length direction of the chassis 10, and the length of the full heat exchange core 20 is set to be less than or equal to half the width of the chassis 10. There is a gap between the full heat exchange core 20 and the rear side wall of the chassis 10.

[0035] For specific implementation, see Figures 1 to 10 As shown, the two-way flow fresh air dehumidifier is mainly installed on the ceiling, and its working process can flexibly switch different operating modes according to actual needs. Four main openings are provided on the chassis 10: a fresh air inlet 11, an exhaust outlet 12, an air supply outlet 13 and a return air outlet 14. Each air outlet is equipped with a controllable air valve to accurately adjust the airflow according to different operating modes, thereby realizing precise control of fresh air introduction, return air discharge, energy recovery and humidity control.

[0036] like Figure 4 As shown, these air vents form two main air ducts: a fresh air duct 15 and a return air duct 16, wherein the fresh air duct 15 connects the fresh air inlet 11 and the air supply vent 13, and is responsible for guiding outdoor fresh air into the room; the return air duct 16 connects the return air vent 14 and the exhaust vent 12, and is responsible for discharging indoor air. At the same time, these two air ducts form an intersection area 60 inside the chassis, and the full heat exchange core 20 is arranged in this intersection area 60, thereby realizing efficient energy exchange between fresh air and exhaust air.

[0037] Specifically, take the fresh air introduction and dehumidification mode as an example: when it is necessary to introduce fresh air and control the indoor humidity, the controllable air valves of the return air outlet 14 and the exhaust air outlet 12 are closed, and the supply air fan 40 is started. At this time, the outdoor fresh air enters the fresh air duct 15 through the fresh air inlet 11, first passes through the full heat exchange core 20 for energy recovery, absorbs heat or cold in the exhaust air, and then reduces the humidity through the dehumidification component 30, and finally is delivered into the room through the supply air outlet 13. In this mode, the two-way flow fresh air dehumidifier can not only introduce fresh air, but also effectively control the indoor humidity, and reduce the load of the air conditioner through the energy recovery function, thereby saving energy. Take the exhaust mode as an example: when it is necessary to exhaust the indoor dirty air, the air valves of the fresh air inlet 11 and the air supply port 13 are closed, and the exhaust fan 50 is started. At this time, the indoor dirty air is sucked into the return air duct 16 through the return air port 14, and is discharged to the outside from the exhaust port 12 after passing through the full heat exchange core 20. In this process, the energy in the dirty air is absorbed by the full heat exchange core 20 and used to preheat or precool the incoming fresh air, which significantly improves the energy utilization efficiency and reduces the energy consumption of the whole machine. In this embodiment, regarding the working principle of the dehumidification component 30, the condensation dehumidification technology in the prior art can be adopted, which will not be elaborated in this embodiment.

[0038] Different from the fresh air dehumidifier in the related art, the full heat exchange core 20 located in the intersection area 60 at least partially overlaps with the orthographic projection of the exhaust fan 50 on the side wall in the width direction of the chassis 10, and the length direction of the full heat exchange core 20 is perpendicular to the length direction of the chassis 10. At the same time, the length of the full heat exchange core 20 is less than half of the width of the chassis 10. This structural design brings the following advantages:

[0039] First, the length of the full heat exchange core 20 is shortened to less than half the width of the chassis 10, and its length direction is perpendicular to the length direction of the chassis 10. Combined with the design that the exhaust fan 50 and the full heat exchange core 20 at least partially overlap in the width direction of the chassis 10, it is equivalent to embedding the exhaust fan 50 into the space originally occupied by the full heat exchange core 20, which effectively shortens the length and width of the chassis, thereby reducing the volume of the entire machine.

[0040] Secondly, the shortened total heat exchange core 20 is arranged in the intersection area 60, which can also make the airflow of the fresh air duct 15 and the return air duct 16 flow through the total heat exchange core 20 more concentratedly. That is, this arrangement increases the fresh air and return air can more concentratedly contact with the total heat exchange core 20, effectively improves the efficiency of energy exchange, and reduces energy dissipation, thereby better playing the role of the total heat exchange core 20, and further enhances the energy-saving effect of the two-way flow fresh air dehumidifier.

[0041] Furthermore, the fresh air duct 15 and the return air duct 16 are arranged in the same plane layer and intersect to form an intersection area 60, which enables the fresh air inlet 11, the full heat exchange core 20, the dehumidification component 30 and the air supply port 13 to be arranged sequentially along the length direction of the chassis 10 to achieve efficient energy exchange between the fresh air and the exhaust air, avoiding the increase in thickness caused by the upper and lower layered structure used in the related technology to accommodate the two air ducts, thereby realizing a "flat" design of the chassis 10 and making the chassis thinner and lighter.

[0042] In summary, this structure can reduce the overall size of the chassis 10. The smaller volume means occupying less ceiling space, which can leave more space for other equipment or decorations, improving space utilization. The smaller volume also makes it easier to adapt to different ceiling environments, such as rooms with low ceilings and narrow corridors.

[0043] In some embodiments, Figure 4 As shown, the fresh air inlet 11, the exhaust outlet 12, the supply air outlet 13 and the return air outlet 14 are respectively provided with a first air valve (not shown in the figure); the return air outlet 14 and the supply air outlet 13 are connected through a circulation air duct 19, and a partition (not shown in the figure) for separating the fresh air duct 15 and the return air duct 16 is provided inside the chassis 10, and a second air valve 191 is provided on the partition, and the air flow channel between the fresh air duct 15 and the return air duct 16 is selectively opened or cut off by controlling the opening and closing state of the second air valve 191, thereby forming or closing the circulation air duct 19.

[0044] During operation, for example: the dehumidification component 30 is located in the circulating air duct 19. When the indoor air needs to be circulated and dehumidified, the air valves of the fresh air inlet 11 and the exhaust port 12 are closed, the second air valve 191 is opened, and the air supply fan 40 is started. At this time, the indoor air enters the return air duct 16 through the return air port 14. Since the second air valve 191 is opened, the air flow enters the circulating air duct 19. In the circulating air duct 19 (fresh air channel 15), the air flow will pass through the dehumidification component 30 for dehumidification treatment to reduce the air humidity. The dehumidified air is then sent back to the room from the air supply port 13 driven by the air supply fan 40. Through this cyclic dehumidification mode, the indoor air humidity can be effectively reduced, bacteria and mold can be prevented from growing in a humid environment, and a more comfortable and healthy indoor environment can be created for users.

[0045] In some embodiments, Figure 2 , Figure 3 , Figures 5 to 10As shown, the intersection area 60 is provided with a hollow exchange shell 61, the full heat exchange core 20 is arranged in the exchange shell 61, and the exchange shell 61 is provided with a first air vent 61a connecting the fresh air inlet 11 and the full heat exchange core 20, a second air vent 61b connecting the air supply port 13 and the full heat exchange core 20, a third air vent 61c connecting the return air port 14 and the full heat exchange core 20, and a fourth air vent 61d connecting the exhaust port 12 and the full heat exchange core 20; wherein the exhaust fan 50 is located between the exhaust port 12 and the fourth air vent 61d, and the supply fan 40 is located between the air supply port 13 and the second air vent 61b.

[0046] Utilizing this structural design, the exchange shell 61 wraps up the full heat exchange core 20 to form a relatively closed space, and an air flow channel can be established between the fresh air channel 15 and the supply air channel 16 and the exchange shell 61 through the first air vent 61a, the second air vent 61b, the third air vent 61c, and the fourth air vent 61d to guide the air flow into the full heat exchange core 20 for energy exchange, which can effectively prevent the fresh air and return air from mixing with the air in other areas inside the chassis 10 during the process of flowing through the full heat exchange core 20, thereby reducing energy loss and improving energy exchange efficiency.

[0047] Specifically, if Figure 2 , Figure 3 , Figures 5 to 10 As shown, the exchange shell 61 is a rectangular parallelepiped having a first side wall 611 arranged toward the fresh air inlet 11, a second side wall 612 arranged toward the air supply outlet 13, and a third side wall 613 arranged toward the exhaust fan 50, wherein the first air vent 61a is arranged on the first side wall 611, the second air vent 61b is arranged on the second side wall 612, and the third air vent 61c and the fourth air vent 61d are both arranged on the third side wall 613.

[0048] In this way, the first vent 61a is arranged on the first side wall 611 facing the fresh air inlet 11, and the second vent 61b is arranged on the second side wall 612 facing the air supply port 13, so that the fresh air and the processed fresh air can enter and leave from both sides of the exchange shell 61, respectively, forming a smoother airflow path, avoiding airflow turbulence inside the exchange shell 61, thereby improving energy exchange efficiency; and the third vent 61c and the fourth vent 61d are both arranged on the third side wall 613 facing the exhaust fan 50, so that the exhaust fan 50 can be closer to the full heat exchange core 20, which is convenient for realizing partial overlap between the exhaust fan 50 and the full heat exchange core 20 in the width direction of the chassis 10, thereby shortening the length and width of the chassis 10 and reducing the volume of the whole machine. In addition, the rectangular exchange shell 61 has a simple structure and is easy to manufacture, which can reduce the manufacturing cost.

[0049] In some embodiments, Figure 5 As shown, the full heat exchange core 20 divides the internal space of the exchange shell 61 into a first chamber 62, a second chamber 63, a third chamber 64 and a fourth chamber 65 which are independent of each other, wherein the first chamber 62 and the second chamber 63 are connected through the full heat exchange core 20, and the third chamber 64 and the fourth chamber 65 are connected through the full heat exchange core 20; the first chamber 62 is connected to the first vent 61a, the second chamber 63 is connected to the second vent 61b, the third chamber 64 is connected to the third vent 61c, and the fourth chamber 65 is connected to the fourth vent 61d.

[0050] By utilizing this structural design, the internal space of the exchange shell 61 is divided into four cavities through the full heat exchange core 20, so that the fresh air and the return air can remain isolated from each other during the process of flowing through the full heat exchange core 20 for energy exchange, thereby preventing cross contamination; for example, the first cavity 62 and the second cavity 63 are respectively used as part of the fresh air channel 15, and the third cavity 64 and the fourth cavity 65 are respectively used as part of the return air channel 16, so as to ensure that the fresh air will not be mixed with the return air, thereby ensuring the cleanliness of the fresh air; at the same time, this structural design also enables the fresh air and the return air to more fully contact the surface of the full heat exchange core 20. For example, the fresh air can contact more surface area of ​​the full heat exchange core 20 while flowing through the first cavity 62 and the second cavity 63, thereby improving the efficiency of energy exchange.

[0051] Specifically, if Figure 2 , Figure 3 , Figures 5 to 10 As shown, the radial cross section of the full heat exchange core 20 is hexagonal, and the full heat exchange core 20 has a top surface 21 and a bottom surface 22 that are parallel and opposite to each other, and a first surface 23 connected to the top surface 21 and set at an angle, a second surface 24 connected to the bottom surface 22 and set at an angle, a third surface 25 connected to the top surface 21 and set at an angle, and a fourth surface 26 connected to the bottom surface 22 and set at an angle, the first surface 23 is connected to the fourth surface 26 and is set at an angle, and the second surface 24 is connected to the third surface 25 and is set at an angle; wherein the first surface 23 and the first side wall 611 are connected to each other and are set at an angle. The first cavity 62 is surrounded by the portion of the second surface 24, the portion of the second side wall 612, the portion of the third side wall 613 and the portion of the inner wall surface of the exchange shell 61; the second surface 24, the portion of the second side wall 612, the portion of the third side wall 613 and the portion of the inner wall surface of the exchange shell 61 form the second cavity 63; the third surface 25, the portion of the second side wall 612, the portion of the third side wall 613 and the portion of the inner wall surface of the exchange shell 61 form the third cavity 64; the fourth surface 26, the portion of the first side wall 611, the portion of the third side wall 613 and the portion of the inner wall surface of the exchange shell 61 form the third cavity 64.

[0052] In this way, the full heat exchange core 20 is a hexagonal prism as a whole, and its four inclined surfaces (the first surface 23, the second surface 24, the third surface 25, and the fourth surface 26) form a staggered structure, which effectively increases the contact area between the full heat exchange core 20 and the fresh air and return air, thereby improving the efficiency of energy exchange. At the same time, the first surface 23 and the second surface 24 are diagonally arranged, and the third surface 25 and the fourth surface 26 are diagonally arranged. On the one hand, the fresh air and return air can be guided to flow along the inclined surface, thereby extending the residence time of the airflow in the full heat exchange core 20, thereby increasing the energy exchange time and further improving the energy exchange efficiency. On the other hand, the four inclined surfaces of the full heat exchange core 20 can conveniently divide the internal space of the exchange shell 61 into four independent cavities (the first cavity 62, the second cavity 63, the third cavity 64, and the fourth cavity 65), which is conducive to the isolation of fresh air and return air and preventing cross contamination.

[0053] In some embodiments, Figure 2 , Figure 3 and Fig.10 As shown, the exchange shell 61 further includes a fourth side wall 614 arranged in parallel with the third side wall 613, and a replacement port 615 for replacing the full heat exchange core 20 is provided on the fourth side wall 614, and the full heat exchange core 20 is configured to be able to be withdrawn from the exchange shell 61 from the replacement port 615 of the fourth side wall 614. After long-term use, the full heat exchange core 20 may experience aging, clogging and other problems, and needs to be replaced, and the replacement port 615 can be provided to conveniently withdraw the full heat exchange core 20 from the exchange shell 61 for replacement without disassembling the entire chassis 10, which greatly simplifies the replacement operation and saves maintenance time and cost.

[0054] Specifically, if Figure 2 and Fig.10 As shown, an inspection door panel 17 covering the fourth side wall 614 and the replacement port 615 is provided on one side of the chassis 10, and the inspection door panel 17 is rotatably connected to the chassis 10 through a detachable pivot mechanism 18. In this embodiment, the inspection door panel 17 can be fixed to the chassis 10 in a variety of ways, such as magnetic attraction, buckles, or hand screws, etc., so that users can disassemble or install it as needed. The inspection door panel 17 covers the fourth side wall 614 and the replacement port 615, effectively preventing dust and foreign matter from entering the interior of the chassis, while also ensuring the neat and beautiful appearance of the chassis.

[0055] For users: when the full heat exchange core 20 needs to be replaced or cleaned, the user only needs to open or remove the inspection door panel 17, and can conveniently operate through the replacement port 615 without the need for professional maintenance personnel to provide door-to-door service, which improves the convenience of product maintenance and reduces maintenance costs.

[0056] For professionals: when more professional inspection and maintenance operations are required, such as checking the condition inside the exchange shell 61, repairing other components, etc., professionals can also conveniently perform operations by opening the inspection door panel 17, and when necessary, in order to obtain a larger operating space, the entire inspection door panel 17 can be removed through the detachable pivot mechanism 18, and then the operation can be performed to avoid blocking the line of sight or affecting the operation when the inspection door panel 17 is opened.

[0057] In some embodiments, Figure 8 and Fig.10 As shown, the first side wall 611 and the second side wall 612 are respectively provided with guide grooves 616, and the connection between the first surface 23 and the fourth surface 26 of the full heat exchange core 20 and the connection between the second surface 24 and the third surface 25 are respectively slidably matched with the corresponding guide grooves 616. With this structural design, the full heat exchange core 20 can slide along the guide grooves 616, which is convenient for pulling out or pushing the full heat exchange core 20 from the exchange shell 61. For example, when the full heat exchange core 20 needs to be replaced or cleaned, it can be smoothly pulled out along the guide grooves 616 to avoid getting stuck or damaged. At the same time, the guide grooves 616 can limit the movement direction of the full heat exchange core 20 to ensure its accurate position in the exchange shell 61, for example, to ensure that the connection position of the full heat exchange core 20 and each vent (61a, 61b, 61c, 61d) is correct to avoid problems such as air leakage or reduced energy exchange efficiency.

[0058] In some embodiments, Figure 6 , Figure 8 and Fig.10 As shown, a first filter 231 is installed on the first surface 23, and a second filter 231 is installed on the third surface 25. The first filter 231 and the first filter 231 can filter the fresh air entering the exchange shell 61; the second filter 251 is installed on the third surface 25 of the full heat exchange core 20 to filter the air entering the exchange shell 61. This separate filtering design can select different filter materials and filtering accuracies according to the different pollutant characteristics of the fresh air and the return air. For example, the first filter 231 can use a primary or medium efficiency filter to mainly filter large particles and dust in the outdoor air; and the second filter 251 can use a medium efficiency or high efficiency filter to mainly filter PM2.5, bacteria, viruses and other pollutants in the indoor air, thereby improving the filtering efficiency and improving the indoor air quality.

[0059] In some embodiments, Figure 3 , Figure 5 , Figures 8 to 10As shown, the first side wall 611 of the exchange shell 61 is spaced from the inner wall surface of the chassis 10 to form a fifth cavity 70, an inclined plate 71 is provided in the fifth cavity 70, the inclined plate 71 separates the fifth cavity 70 to form an independent sixth cavity 80, the fifth cavity 70 is connected with the first cavity 62 through the first vent 61a, the sixth cavity 80 is connected with the fourth cavity 65 through the fifth vent 81 provided on the first side wall 611, and the third side wall 613 is provided with a sixth vent 82 connecting the exhaust port 12 and the sixth cavity 80.

[0060] With this structural design, the fresh air entering from the fresh air inlet 11 first enters the fifth chamber 70, and the inclined plate 71 divides the fifth chamber 70 into two areas, one area is connected to the first chamber 62, allowing part of the fresh air to enter the full heat exchange core 20 for energy exchange; the other area, namely the sixth chamber 80, is connected to the fourth chamber 65, and the sixth chamber 80 is connected to the fourth chamber 65 through the fifth vent 81, so that part of the exhaust air after heat exchange in the full heat exchange core 20 can enter the sixth chamber 80.

[0061] Specifically, the exhaust air entering the sixth chamber 80 can, on the one hand, undergo heat exchange with the fresh air entering the fifth chamber 70 through the inclined plate 71, thereby utilizing the waste heat in the exhaust air to preheat the fresh air, thereby increasing the temperature of the fresh air entering the full heat exchange core 20 for heat exchange and improving energy utilization, especially in winter, which can effectively increase the temperature of the air delivered to the room and improve comfort. On the other hand, the sixth chamber 80 is connected to the exhaust port 12 through the sixth vent 82, which is equivalent to adding an exhaust outlet to the exhaust duct 16. Combined with the connection between the fourth chamber 65 and the fourth vent 61d, the exhaust efficiency of the exhaust duct 16 can be effectively improved.

[0062] The bidirectional flow fresh air dehumidifier provided in this embodiment is achieved by spatially overlapping the exhaust fan and the shortened full heat exchange core, that is, the orthographic projections of the exhaust fan and the full heat exchange core on the side wall in the width direction of the chassis at least partially overlap, and the length of the full heat exchange core is less than half the width of the chassis, thereby effectively reducing the length of the chassis, making the whole machine more compact and lightweight, saving installation space, improving space utilization, improving product appearance, and being able to meet the needs of more places with limited installation space.

[0063] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0064] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A two-way fresh air dehumidifier, comprising a chassis, a full heat exchange core, a dehumidification component, an air supply fan and an exhaust fan, wherein the chassis is provided with a fresh air inlet, an exhaust outlet, an air supply outlet and a return air outlet, wherein the fresh air inlet is connected with the air supply outlet to form a fresh air duct, and the return air outlet is connected with the exhaust outlet to form a return air duct, characterized in that: The fresh air duct and the return air duct at least partially intersect to form an intersection area, and the full heat exchange core is arranged in the intersection area; the dehumidification component and the supply air fan are arranged in the fresh air duct; the exhaust fan is arranged in the return air duct; the fresh air inlet, the full heat exchange core, the dehumidification component and the supply air outlet are arranged sequentially along the length direction of the chassis, and are located in the same plane layer; the air outlet of the exhaust fan is matched with the exhaust outlet, and the exhaust fan and the full heat exchange core have at least partially overlapped orthographic projections on the side walls in the width direction of the chassis, wherein the length direction of the full heat exchange core is perpendicular to the length direction of the chassis.

2. The two-way fresh air dehumidifier according to claim 1, characterized in that: The length of the full heat exchange core is less than or equal to half of the width of the chassis.

3. The two-way fresh air dehumidifier according to claim 1, characterized in that: The intersection area is provided with a hollow exchange shell, the full heat exchange core is arranged in the exchange shell, and the exchange shell is provided with a first air vent connecting the fresh air inlet and the full heat exchange core, a second air vent connecting the air supply outlet and the full heat exchange core, a third air vent connecting the return air outlet and the full heat exchange core, and a fourth air vent connecting the exhaust outlet and the full heat exchange core; wherein the exhaust fan is located between the exhaust outlet and the fourth vent, and the supply fan is located between the air supply outlet and the second vent.

4. The two-way fresh air dehumidifier according to claim 3, characterized in that: The full heat exchange core divides the internal space of the exchange shell into a first chamber, a second chamber, a third chamber and a fourth chamber which are independent of each other, wherein the first chamber and the second chamber are connected through the full heat exchange core, and the third chamber and the fourth chamber are connected through the full heat exchange core; the first chamber is connected with the first vent, the second chamber is connected with the second vent, the third chamber is connected with the third vent, and the fourth chamber is connected with the fourth vent.

5. The two-way fresh air dehumidifier according to claim 4, characterized in that: The exchange shell is a rectangular parallelepiped having a first side wall arranged toward the fresh air inlet, a second side wall arranged toward the air supply outlet, and a third side wall arranged toward the exhaust fan, wherein the first air vent is arranged on the first side wall, the second air vent is arranged on the second side wall, and the third air vent and the fourth air vent are both arranged on the third side wall.

6. The two-way fresh air dehumidifier according to claim 5, characterized in that: The radial cross-section of the full heat exchange core is hexagonal, and the full heat exchange core has a top surface and a bottom surface that are parallel and opposite to each other, as well as a first surface connected to the top surface and set at an angle, a second surface connected to the bottom surface and set at an angle, a third surface connected to the top surface and set at an angle, and a fourth surface connected to the bottom surface and set at an angle, the first surface is connected to the fourth surface and set at an angle, and the second surface is connected to the third surface and set at an angle; wherein, the first surface, part of the first side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the first cavity; the second surface, part of the second side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the second cavity; the third surface, part of the second side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the third cavity; the fourth surface, part of the first side wall, part of the third side wall and part of the inner wall surface of the exchange shell form the third cavity.

7. The two-way fresh air dehumidifier according to claim 6, characterized in that: The exchange shell also includes a fourth side wall arranged parallel to the third side wall, and a replacement port for replacing the full heat exchange core is provided on the fourth side wall. The full heat exchange core is configured to be able to be removed from the exchange shell from the replacement port of the fourth side wall.

8. The two-way fresh air dehumidifier according to claim 6 or 7, characterized in that: The first side wall and the second side wall are respectively provided with guide grooves, and the connection between the first surface and the fourth surface and the connection between the second surface and the third surface of the full heat exchange core are respectively slidably matched with the corresponding guide grooves.

9. The two-way fresh air dehumidifier according to claim 6, characterized in that: The first side wall of the exchange shell and the inner wall surface of the chassis form a fifth cavity, an inclined plate is provided in the fifth cavity, the inclined plate separates the fifth cavity to form an independent sixth cavity, the fifth cavity is connected with the first cavity through the first vent, the sixth cavity is connected with the fourth cavity through the fifth vent provided on the first side wall, and the third side wall is provided with a sixth vent connecting the exhaust port and the sixth cavity.

10. The two-way fresh air dehumidifier according to any one of claims 1 to 9, characterized in that: The fresh air inlet, exhaust outlet, supply air outlet and return air outlet are respectively provided with a first air valve; the return air outlet and the supply air outlet are connected through a circulating air duct, and a partition for separating the fresh air duct and the return air duct is provided inside the chassis, and a second air valve is provided on the partition, and the air flow channel between the fresh air duct and the return air duct is selectively opened or cut off by controlling the opening and closing state of the second air valve, thereby forming or closing the circulating air duct.

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