Intelligent energy-saving air conditioner box ec fan wind wall

Abstract

The application provides a smart energy-saving air conditioner box EC fan wind wall, and relates to the technical field of energy-saving air conditioners.The smart energy-saving air conditioner box EC fan wind wall comprises a circular fixing plate, the circular fixing plate comprises a first ring plate, a second ring plate and a center plate connected in sequence from outside to inside, a center fan module is fixedly connected to the center of the inner side of the center plate, a plurality of peripheral fan modules are connected to the inner side edges of the center plate, a plurality of sliding grooves are formed in the inner side of the circular fixing plate, each peripheral fan module is in sliding connection with one sliding groove, so as to realize independent movement of the peripheral fan modules along the radial direction, the wind wall has a first mode and a second mode, in the first mode, the center fan module and all the peripheral fan modules are distributed in a rectangular array, in the second mode, all the peripheral fan modules are moved to the same circumference along the corresponding sliding grooves and form a circular array together with the center fan module, so that the wind wall can be flexibly switched between the rectangular array and the circular array.

Description

Technical Field

[0001] This invention relates to the field of energy-saving air conditioning technology, specifically to an intelligent energy-saving air conditioning unit with an EC fan and air wall. Background Technology

[0002] In air conditioning units and various ventilation systems, EC fans often adopt a fixed matrix arrangement structure. This structure, by installing multiple fans in parallel within the same rigid frame, can achieve large air volume and high static pressure output, and has a certain degree of redundancy backup capability, thus it is widely used in data centers, public buildings and other places.

[0003] In variable load scenarios such as data centers, the load rate of IT equipment fluctuates dynamically over time. Under high load, all fans need to operate at full capacity to achieve maximum heat dissipation, while under low load, it's desirable to concentrate airflow to localized hotspots for precise cooling, thereby improving energy efficiency. However, the topology of fixed matrix air walls cannot be changed; regardless of load, air is delivered in the same rectangular shape, causing some airflow to deviate from the target area, resulting in decreased cooling efficiency and energy waste. In large public buildings such as airports and exhibition halls, air conditioning loads vary significantly with the season and usage area. Uniform airflow covering the entire space is needed in summer and winter, while localized airflow is only required in densely populated areas during the spring and autumn transition seasons to save energy. Fixed matrix air walls lack the physical mechanism to reorganize the fans from a dispersed arrangement to a concentrated circular arrangement, failing to achieve the switching from full-space coverage to precise localized airflow. This results in continued operation of full-area airflow during transition seasons, causing unnecessary energy loss.

[0004] Existing fixed matrix fan walls, due to the rigid constraints of their arrangement, can no longer meet the technical requirements of on-demand deformation and dynamic adaptation in some environments. There is an urgent need for a new type of fan wall structure that can flexibly switch the arrangement according to the usage environment, in order to improve the environmental adaptability and overall energy efficiency of air conditioning systems. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an intelligent energy-saving air conditioning unit with an EC fan wall that can flexibly switch between rectangular and circular arrays depending on the operating environment, thereby improving the environmental adaptability and overall energy efficiency of the air conditioning system.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a circular fixing plate, the circular fixing plate comprising a first ring plate, a second ring plate and a center plate connected sequentially from the outside to the inside, the first ring plate, the second ring plate and the center plate being coplanar, and the first ring plate, the second ring plate and the center plate being composed of a plate surface and a vibration isolation pad fixed to the inner side of the plate surface; A central fan module is fixedly connected to the inner center of the central plate, and several peripheral fan modules are equidistantly connected to the inner edge of the central plate in a circumferential direction. The centers of the several peripheral fan modules are all located on the first circumference. The inner side of the second ring plate is equidistantly connected with a number of peripheral fan modules in the circumferential direction, and the center of each of the peripheral fan modules is located on the second circumference. The inner side of the circular fixed plate is provided with several sliding grooves, and each peripheral fan module is slidably connected to one sliding groove to realize the independent radial movement of the peripheral fan module. The wind wall has a first mode and a second mode. In the first mode, the central fan module and all peripheral fan modules are distributed in a rectangular array. In the second mode, all peripheral fan modules move along their respective slides to the same circumference and together with the central fan module form a circular array.

[0007] Preferably, a first air outlet is provided through the inner side of the first ring plate, a second air outlet is provided through the inner side of the second ring plate, a third air outlet is provided through the inner edge of the center plate, and a fourth air outlet is provided through the inner center of the center plate. The first, second, third, and fourth air outlets are all through holes for supplying air to the fan. The inner side of the circular fixing plate has several through holes, each through hole is adapted to two of the through holes, and the two through holes are symmetrically distributed on both sides of the through hole. The through holes are used to cooperate in insertion and positioning to lock the position of the peripheral fan module.

[0008] Preferably, a sealing element is connected to the outer side of the circular fixing plate. The sealing element includes several first plates and several second plates. Each first plate matches a peripheral fan module located on a first circumference, and each second plate matches a peripheral fan module located on a second circumference. Both the first and second plates are sealing plates. Each sealing plate has several windows that are opened through it. Each window is adapted to an air outlet. The number of windows on the first plate is one more than the number of windows on the second plate.

[0009] Preferably, each sealing plate consists of a vertical strip and several horizontal strips. One side of each of the horizontal strips is fixedly connected to the same side of the vertical strip. Slots are provided at the edges of adjacent horizontal strips on their closest sides. Each window is matched with two slots and the window is connected to the slots. The window is also matched with a sealing plate. The sealing plate is inserted into the slots and is used to detachably seal unused windows.

[0010] Preferably, the peripheral fan module has the same structure as the central fan module. The peripheral fan module includes: a mounting plate, a slider fixedly connected to the outer side of the mounting plate, the slider being slidably connected to a slide groove, a plurality of threaded holes being opened through the surface of the mounting plate, the mounting plate being detachably fixedly connected to a circular fixing plate through the threaded holes by threaded connectors, and a fan fixedly connected to the center of the inner side of the mounting plate.

[0011] Preferably, each of the four corners of the inner side of the mounting plate is fixedly connected to a take-up vertical plate, which is used to separately accommodate high-voltage wires and low-voltage wires. One end of the take-up vertical plate is provided with several connecting plates, and both ends of each connecting plate are fixedly connected to the side of two adjacent take-up vertical plates. The take-up vertical plate includes: a main body, which is fixedly connected to the inner side of the mounting plate. One end of the main body is provided with a receiving cavity. Several wire outlet holes are equidistantly provided on the inner side of the main body. The wire outlet holes are connected to the receiving cavity. A limit plate is connected to the inner wall of the receiving cavity. A limit hole is provided between the inner wall of the main body and the limit plate. The receiving cavity is provided with a pull plate, which is slidably connected to the limit hole. The wires in the receiving cavity extend out of the wire outlet holes and are connected to the fan.

[0012] Preferably, the mounting plate has symmetrically arranged side plates on both sides, and each side plate has a reinforcing plate fixedly connected to both ends. The side plate and the reinforcing plates at both ends form a positioning plate. A positioning hole is opened through one side of the positioning plate, and each positioning hole is adapted to a plug.

[0013] Preferably, each of the peripheral fan modules is equipped with a positioning double plug rod. One end of each positioning double plug rod passes through the positioning hole and is inserted into the corresponding plug cylinder. One of the reinforcing plates is fixedly connected to one side of the connecting plate, and the other of the reinforcing plates is fixedly connected to one side of the mounting plate.

[0014] Preferably, a plug is fixedly connected to the outside of each of the perforations. The plug is connected to the corresponding perforation and is used to engage with the positioning double plug rod to lock the position of the peripheral fan module.

[0015] Preferably, when the wind wall switches between the first mode and the second mode, the peripheral fan module moves radially along the slide groove, the extension direction of the slide groove is the radial direction of the circular fixed plate, and several slide grooves are evenly distributed radially with the center of the circular fixed plate as the center.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides an intelligent energy-saving air conditioning unit EC fan air wall, which has the following beneficial effects: 1. This intelligent energy-saving air conditioning unit's EC fan wall, through the setting of a circular fixed plate and radial sliding grooves, allows the peripheral fan modules to move radially along the sliding grooves, realizing flexible switching between rectangular and circular arrays of the fan wall. It can form single-layer or multi-layer circular arrays on multiple circles with different radii. Under low load or transitional seasons, the fan wall can be switched to a circular array, so that the airflow is concentrated and delivered to the target area, avoiding energy waste and effectively improving the overall energy efficiency ratio of the air conditioning system. The arrangement can be adjusted as needed according to the actual use environment, significantly improving the environmental adaptability of the fan wall.

[0017] 2. When converting from the first mode to the second mode, the dual-radius distribution of the wind turbine modules on the circumference of the rectangular array is transformed into operational convenience during mode switching. Half of the wind turbines do not need to be moved to directly form the core skeleton of the circular array. Only the other half of the wind turbines need to be moved to complete the convergence. This has the advantages of halving the amount of moving work, higher positioning accuracy, and significantly improved switching efficiency.

[0018] 3. The external fan module is slidably connected to the slide groove via a slider. The position is locked by the cooperation of the positioning double plug rod and the plug cylinder. The fan module can also be temporarily fixed before final tightening. No manual support is required, making the operation convenient and efficient, and greatly reducing the difficulty of on-site adjustment. Through the cooperation of the sealing window and the sealing plate, the unused air outlet can be flexibly closed according to the actual number of operating fans to avoid air leakage and ensure the effectiveness of airflow organization.

[0019] 4. By installing a cable tray inside the mounting plate, the high-voltage and low-voltage wires are housed separately, effectively avoiding electromagnetic interference and improving the stability and reliability of the fan operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the forward structure of the present invention.

[0021] Figure 2 This is a front view of the present invention.

[0022] Figure 3 This is a schematic diagram of the reverse structure of the present invention.

[0023] Figure 4 This is a rear view of the present invention.

[0024] Figure 5 This is a separation diagram of the circular fixing plate and sealing element of the present invention from the surrounding fan module.

[0025] Figure 6 for Figure 5 The front view after removing the seals and the external fan module.

[0026] Figure 7 for Figure 2A cross-sectional view of part of the structure.

[0027] Figure 8 This is a separation diagram of the entire assembly of the first ring plate, second ring plate, center plate, and seal of the present invention from the peripheral fan module.

[0028] Figure 9 This is a separation diagram of the entire assembly containing the first ring plate, the second ring plate, and the center plate of the present invention from the sealing element and the insert.

[0029] Figure 10 This is a schematic diagram of the structure of the sealing element of the present invention.

[0030] Figure 11 This is a schematic diagram of the external fan module of the present invention.

[0031] Figure 12 This is an exploded view of the peripheral fan module of the present invention.

[0032] Figure 13 This is a schematic diagram of the external fan module of the present invention after removing the side plate, positioning double plug rods, and reinforcing plate.

[0033] In the diagram: 1. Circular fixing plate, 11. First ring plate, 12. Second ring plate, 13. Center plate, 2. Sealing element, 21. First plate body, 22. Second plate body, 23. Vertical strip plate, 24. Horizontal strip plate, 25. Slot, 26. Window, 27. Sealing plate, 31. First air outlet, 32. Second air outlet, 33. Third air outlet, 34. Fourth air outlet, 35. Perforation, 4. Center fan module, 5. Slide groove, 6. Peripheral fan module, 61. Mounting plate, 62. Slider, 63. Cable take-up vertical plate, 631. Main body, 632. Receiving cavity, 633. Limiting plate, 634. Pull plate, 635. Cable outlet hole, 64. Connecting plate, 651. Side plate, 652. Insert tube, 653. Positioning double insert rod, 654. Reinforcing plate, 655. Positioning hole, 66. Threaded hole, 67. Fan. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] See Figures 1-13A smart energy-saving air conditioning unit EC fan wall includes a circular fixing plate 1. The circular fixing plate 1 is installed inside the air conditioning unit to support the fan module 67. The circular fixing plate 1 includes a first ring plate 11, a second ring plate 12, and a center plate 13 connected sequentially from the outside in. The first ring plate 11, the second ring plate 12, and the center plate 13 are coplanar. Each of the first ring plate 11, the second ring plate 12, and the center plate 13 consists of a plate surface and vibration isolation pads fixed to the inner side of the plate surface. The vibration isolation pads are made of rubber or polyurethane elastomer material and are used to absorb vibrations generated during the operation of the fan 67, reduce noise transmission to the air conditioning unit shell, and prevent equipment resonance.

[0036] A central fan module 4 is fixedly connected to the inner center of the central plate 13. Several peripheral fan modules 6 are equidistantly connected to the inner edge of the central plate 13 in a circumferential direction, with the centers of all peripheral fan modules 6 located on the first circumference. Several peripheral fan modules 6 are equidistantly connected to the inner side of the second ring plate 12 in a circumferential direction, with the centers of all peripheral fan modules 6 located on the second circumference. The central fan module 4 and all peripheral fan modules 6 together constitute the main body of the wind wall.

[0037] The inner side of the circular fixed plate 1 has several sliding grooves 5, each extending radially from the center of the circular fixed plate 1. Each sliding groove 5 is slidably connected to one of the sliding grooves 5, enabling independent radial movement of the peripheral fan module 6. The sliding grooves 5 constrain the movement direction of the peripheral fan module 6, ensuring that each fan module 6 moves linearly along the radial direction.

[0038] The wind wall has a first mode and a second mode. In the first mode, the central fan module 4 and all the peripheral fan modules 6 are arranged in a rectangular array. In the second mode, all the peripheral fan modules 6 move along their respective slides 5 to the same circumference, forming a circular array together with the central fan module 4.

[0039] In the first mode, the central fan module 4 and all peripheral fan modules 6 are arranged in a rectangular array. Half of the peripheral fan modules 6 are distributed on the first circumference, and the other half on the second circumference. When switching from the first mode to the second mode, all peripheral fan modules 6 must move radially along their corresponding grooves 5 to the same circumference to form a circular array. Taking the convergence of all peripheral fan modules 6 to the second circumference as an example, the portion of peripheral fan modules 6 already distributed on the second circumference, being in their target position, does not require any radial movement and only needs to remain in place. The peripheral fan modules 6 originally distributed on the first circumference are simply pushed inward along the grooves 5 to the second circumference, forming a complete circular array together with the peripheral fan modules already on the second circumference.

[0040] This design offers significant advantages: since half of the peripheral fan modules 6 are already on the target circumference, only half of the fan modules actually need to be moved radially, greatly reducing the workload during mode switching; the peripheral fan modules 6, originally located on the second circumference, have pre-occupied their target positions and can serve as positioning references for the moved fan modules, helping to ensure the uniformity of distribution and positional accuracy of each fan module on the same circumference after switching; compared to a scheme where all peripheral fan modules need to be moved from different radii to the same target circumference, this design utilizes the fact that some fans are already in place in the initial layout, making the mode switching process more efficient and faster, especially in scenarios requiring frequent switching.

[0041] A first air outlet 31 is provided through the inner side of the first ring plate 11, a second air outlet 32 ​​is provided through the inner side of the second ring plate 12, a third air outlet 33 is provided through the inner side of the edge of the center plate 13, and a fourth air outlet 34 is provided through the center of the inner side of the center plate 13. The first air outlet 31, the second air outlet 32, the third air outlet 33, and the fourth air outlet 34 are all through holes for supplying air to the fan 67. Several through holes 35 are provided through the inner side of the circular fixing plate 1. Each through hole is fitted with two through holes 35. The two through holes 35 are symmetrically distributed on both sides of the through hole. The through holes 35 are used for insertion and positioning to lock the position of the peripheral fan module 6.

[0042] A sealing element 2 is connected to the outer side of the circular fixed plate 1. The sealing element 2 includes several first plates 21 and several second plates 22. Each first plate 21 matches a peripheral fan module 6 located on the first circumference, and each second plate 22 matches a peripheral fan module 6 located on the second circumference. Both the first plate 21 and the second plate 22 are sealing plates 27, and each sealing plate 27 has several windows 26 through it, each window 26 being adapted to an air outlet. Since the number of fans 67 on the first circumference is different from the number of fans 67 on the second circumference, the number of windows 26 on the first plate 21 is one more than the number of windows 26 on the second plate 22, and the center of the first air outlet 31 on the first ring plate 11 is located on the third circumference.

[0043] In the initial state, some peripheral fan modules 6 are distributed on the first circumference, and others are distributed on the second circumference. The centers of the first air outlets 31 on the first ring plate 11 are all located on the third circumference, with each air outlet corresponding to a specific fan module 67. When the air wall needs to switch from the first mode (rectangular array) to the second mode (circular array), the peripheral fan modules 6 located on the first circumference need to move radially along the slide 5 to the second circumference, thus converging with the peripheral fan modules 6 originally located on the second circumference. Therefore, during the switching process, the positions on the first circumference that originally corresponded to fan modules 67 will become vacant, while new fan modules 67 from the first circumference will be added to the second circumference.

[0044] To accommodate this positional change, the first plate 21, which matches the peripheral fan module 6 on the first circumference, needs to have one more window 26 than the second plate 22. Specifically, the first plate 21 has one more window 26 than the second plate 22, with the extra window 26 corresponding to the air outlet position of the peripheral fan module 6 on the first circumference when it is stationary. In this way, regardless of whether the fan module 67 is in its initial position or its convergent position after movement, the seal 2 can ensure that the opening and closing states of each air outlet are consistent with the actual distribution of the fan module 67 through the cooperation of the window 26 and the sealing plate 27, thus preventing air leakage.

[0045] The radius of the third circumference can be flexibly set according to the actual project requirements. When the diameter of the circular duct connected to the air outlet of the air conditioning unit is large, the peripheral fan module 6 can cross the second circumference during movement and directly position itself to the third circumference, so that the air supply profile of the air wall can achieve a better match with the duct cross-section. Compared with a circular array that can only converge to a single radius, the multi-level adjustable design allows the air wall to adapt to air outlet ducts of different diameters, further reducing local resistance losses caused by shape mismatch.

[0046] As an extended arrangement, all peripheral fan modules 6 located on the first circumference can be moved to the second circumference, and simultaneously, all peripheral fan modules 6 located on the second circumference can be moved to the third circumference, thus forming a double-layered circular array. In this multi-layered circular array, each fan module 67 is distributed at different radial positions. After the airflow is delivered from multiple radial levels, a gradient distribution is formed in the confluence area, avoiding localized high pressure and turbulence caused by the convergence of all airflow at the same radius. This layout is suitable for applications requiring higher uniformity of airflow and air quality.

[0047] When an external fan module 6 experiences an electrical or mechanical fault, it can be pushed outward along the slide 5 to the third circumference, maintaining sufficient distance from the normally operating fan modules 67. This prevents the impeller jamming or abnormal noise of the faulty fan 67 from physically interfering with adjacent fans 67, while also creating ample working space for maintenance personnel. The remaining normally operating external fan modules 6 and the central fan module 4 can continue to operate, maintaining the basic air supply function of the air wall. Under the N+1 redundancy design, the controller automatically increases the speed of the remaining fans 67 to compensate for airflow loss, ensuring that the replacement or repair of the faulty fan 67 can be completed without shutting down the system.

[0048] When the peripheral fan module 6 moves to a larger radius circle, such as the third circle, the convergence path of the airflow from each fan module 67 in the central area becomes longer, the jet angle changes, and vortex coupling is easily generated. To address this, a guide cone is installed on the outside of the central fan module 4. The guide cone has a smooth, streamlined surface that can smoothly deflect the radial jet into axial flow, guiding the airflow along the cone surface into the main duct and preventing multiple airflows from directly colliding at the center point. Simultaneously, the controller sets different speed compensation values ​​based on the radial position of each fan module 67. The peripheral fan module 6, located on a larger radius circle, receives higher speed compensation, while the fan module 67, located on a smaller radius circle, receives lower speed compensation. This ensures that the momentum of each airflow reaches the convergence zone is more consistent, thereby significantly reducing turbulence losses and improving aerodynamic efficiency.

[0049] Each sealing plate 27 consists of a vertical strip 23 and several horizontal strips 24. The vertical strip 23 extends vertically, serving as the main framework of the sealing plate 27. One side of each of the horizontal strips 24 is fixedly connected to the same side of the vertical strip 23. The horizontal strips 24 extend horizontally and are equidistantly arranged along the height of the vertical strip 23, forming a comb-like structure. The vertical strip 23 and each horizontal strip 24 can be fixedly connected by welding or integral molding to ensure the overall structural strength and rigidity of the sealing plate 27. Slots 25 are provided at the edges of adjacent horizontal strips 24. Specifically, the slots 25 are located at the edges of the horizontal strips 24 and extend along the length of the horizontal strips 24. The gap between each pair of adjacent horizontal strips 24 forms a window 26. Each window 26 is fitted with two slots 25: one at the lower edge of the horizontal strip 24 above the window 26, and another at the upper edge of the horizontal strip 24 below the window 26. The window 26 communicates with its two slots 25, forming an insertion space for installing a sealing plate 27. The window 26 is also fitted with a sealing plate 27, which is a flat plate structure adapted to the shape of the window 26. The upper and lower edges of the sealing plate 27 are respectively inserted into the upper and lower slots 25. When the sealing plate 27 is fully inserted into the slot 25, it completely covers the entire window 26, sealing it completely. The sealing plate 27 is used to removably seal unused windows 26. When the airflow barrier is in a certain operating mode, some air outlets may not have their corresponding fan 67 modules installed or running. In this case, the sealing plate 27 can be inserted into the corresponding slot 25 to seal the window 26 of that air outlet, preventing airflow leakage through channels where no fan 67 is installed. When it is necessary to activate the fan 67 corresponding to that air outlet, simply pull the sealing plate 27 out of the slot 25 to restore the window 26 to its open state, allowing airflow to pass through. The plug-in installation method of the sealing plate 27 makes the opening and closing of the window 26 extremely convenient, requiring no additional tools and improving the adjustment efficiency of the airflow barrier when switching between different operating modes.

[0050] The peripheral fan module 6 has the same structure as the central fan module 4. The peripheral fan module 6 includes a mounting plate 61, with a slider 62 fixedly connected to the outer side of the mounting plate 61. The slider 62 is slidably connected to the slide groove 5. Several threaded holes 66 are formed through the surface of the mounting plate 61, and the mounting plate 61 is detachably fixed to the circular fixing plate 1 via threaded connectors passing through the threaded holes 66. A fan 67 is fixedly connected to the center of the inner side of the mounting plate 61. The fan 67 is an EC fan, employing a permanent magnet synchronous motor and electronic commutation technology. The EC fan structure includes: a high-performance impeller, a high-efficiency permanent magnet external rotor motor, an integrated intelligent controller, a guide ring for optimizing airflow, and an arc-shaped guide plate, among other components.

[0051] Four take-up vertical plates 63 are fixedly connected to the four corners of the inner side of the mounting plate 61. The four take-up vertical plates 63 are located at the upper left, upper right, lower left, and lower right corners of the mounting plate 61, respectively, and each take-up vertical plate 63 extends upwards perpendicular to the surface of the mounting plate 61. The take-up vertical plates 63 are used to separately accommodate high-voltage and low-voltage wires, where the high-voltage wires are the power supply lines for the fan 67, and the low-voltage wires are the control signal lines. Through this separate wiring method, each take-up vertical plate 63 accommodates only one type of wire. For example, the take-up vertical plates 63 at the upper left and lower right corners are used to accommodate high-voltage wires, and the take-up vertical plates 63 at the upper right and lower left corners are used to accommodate low-voltage wires, thus achieving the first layer of separation between high-voltage and low-voltage wires in physical space. Several connecting plates 64 are provided at one end of each take-up vertical plate 63, and both ends of each connecting plate 64 are fixedly connected to the adjacent sides of two adjacent take-up vertical plates 63. The connecting plate 64 is horizontally spanned between two adjacent take-up vertical plates 63 to enhance the structural stability between each take-up vertical plate 63 and prevent the take-up vertical plates 63 from shaking or tilting during the operation of the fan 67. At the same time, the connecting plate 64 also serves as a wire bundle, which can bind and fix the wires led out from each take-up vertical plate 63 along the surface of the connecting plate 64, making the wiring more neat and orderly.

[0052] The take-up vertical plate 63 includes a main body 631. The main body 631 is a vertically arranged plate-like structure. The bottom end of the main body 631 is fixedly connected to the inner surface of the mounting plate 61, which can be done by welding or bolting. A receiving cavity 632 is formed at one end of the main body 631, i.e., the end furthest from the center of the mounting plate 61. The receiving cavity 632 is a cavity structure that extends along the thickness direction of the main body 631 and is used to accommodate wires introduced from the outside. The opening end of the receiving cavity 632 faces the outside of the take-up vertical plate 63, facilitating the introduction and extraction of wires.

[0053] The inner side of the main board 631 has several equally spaced wire outlet holes 635, which are evenly arranged along the height of the main board 631. The wire outlet holes 635 are connected to the receiving cavity 632. The wires in the receiving cavity 632 pass through the wire outlet holes 635 and extend to the wiring terminal of the fan 67. Each wire outlet hole 635 has a rounded chamfer or rubber protective ring at the edge of the hole to prevent the insulation layer from being scratched by the edge of the hole during the wire passing through, ensuring electrical safety.

[0054] A limiting plate 633 is connected to the inner wall of the receiving cavity 632. The limiting plate 633 is a long strip-shaped plate extending along the length of the receiving cavity 632. One side of the limiting plate 633 is fixedly connected to the inner wall of the receiving cavity 632 by welding, and the other side of the limiting plate 633 forms a limiting hole between itself and the inner wall of the main body 631. The limiting hole is provided through the length of the receiving cavity 632 to allow wires to pass through and to constrain the routing path of the wires. The setting of the limiting plate 633 divides the internal space of the receiving cavity 632 into multiple routing channels, so that different wires maintain their own routing paths in the receiving cavity 632 and avoid tangling with each other. A limiting hole is provided between the inner wall of the main body 631 and the limiting plate 633. A pull plate 634 is also provided in the receiving cavity 632. The two sides of the pull plate 634 are slidably connected to the limiting hole, so that the pull plate 634 can be freely pulled out in the direction of the limiting hole in the receiving cavity 632. The pull plate 634 is used to hold the wires inside the receiving cavity 632, keeping the wires neatly arranged within the cavity and preventing them from shaking or shifting due to vibrations from the fan 67. When it is necessary to add, replace, or rearrange the wires, the operator can pull the pull plate 634 out of the receiving cavity 632, and then reinsert the pull plate 634 into the limiting hole after the wires have been adjusted. The operation is convenient and efficient.

[0055] Side plates 651 are symmetrically arranged on both sides of the mounting plate 61. Each side plate 651 has a reinforcing plate 654 fixedly connected to both ends. The side plate 651 and the reinforcing plates 654 at both ends form a positioning plate. A positioning hole 655 is formed through one side of the positioning plate, and each positioning hole 655 is adapted to a plug 652. A plug 652 is fixedly connected to the outside of each through hole 35, and the plug 652 communicates with the corresponding through hole 35.

[0056] Each peripheral fan module 6 is equipped with a positioning double plug rod 653. One end of each positioning double plug rod 653 passes through the positioning hole 655 and is inserted into the corresponding plug tube 652. One reinforcing plate 654 is fixedly connected to one side of the connecting plate 64, and another reinforcing plate 654 is fixedly connected to one side of the mounting plate 61.

[0057] When the airflow wall is in its first mode, the central fan module 4 and all peripheral fan modules 6 are arranged in a rectangular array. In this mode, each fan module 67 evenly covers the entire rectangular cross-section, providing large-area, uniform air supply coverage. This is suitable for high-load operation in data centers or for full-space air conditioning supply in summer and winter, where a large volume of air needs to be uniformly output. The advantage of the rectangular array is that it maximizes the use of the square cross-sectional space of the air conditioning unit. The airflow between each fan 67 overlaps, forming a relatively uniform velocity and pressure field on the air outlet surface, thereby ensuring the temperature and humidity balance of the entire air-conditioned area.

[0058] When the operating environment changes, for example, a data center switches from high-load, full-space cooling to low-load or localized hotspots; a large public building switches from uniform airflow throughout the space in summer and winter to localized airflow in densely populated areas during the spring and autumn transition seasons; or the air conditioning unit outlet is connected to a circular duct, a mode switch is required. The operator loosens the fixing screws on the mounting plate 61 to disconnect the mounting plate 61 of the peripheral fan module 6 from the circular fixing plate 1. Next, the peripheral fan module 6 is radially pushed along the slide groove 5 away from the central fan module 4. During this pushing process, the slider 62 of each peripheral fan module 6 slides along the corresponding radial slide groove 5, ensuring that each fan module 67 moves radially in a straight line without deviation or jamming. The design of the radial slide groove 5 ensures the accuracy of the movement trajectory of each peripheral fan module 6, enabling multiple fan modules 67 to synchronously and smoothly complete the position adjustment from dispersed to centralized. When all peripheral fan modules 6 move to the same circumference, their positions, initially at different radii on the first and second circumferences, converge to a single radius. At this point, the operator inserts the positioning double-pole rod 653 through the positioning hole 655 and reconnects it to the corresponding insert 652. This completes the positioning of the peripheral fan modules 6 and provides temporary fixation without manual support, facilitating subsequent fixing. Subsequently, each peripheral fan module 6 is fixedly connected to the circular fixing plate 1 using threaded fasteners. During mode switching, depending on the actual number of operating fans 67, the unused windows 26 on the sealing element 2 can be sealed by the insertion and engagement of the sealing plate 27 and the slot 25, preventing air leakage from outlets without fans 67 installed and ensuring that all airflow is delivered through the operating fans 67. At this point, the air wall switches to the second mode. The insertion and engagement of the positioning double plug rod 653 and the plug tube 652 not only enables the rapid positioning of the fan 67 module in the slide groove 5, but also prevents the fan 67 module from shifting during the final thread tightening process, thus ensuring assembly accuracy.

[0059] In the second mode, all peripheral fan modules 6 and the central fan module 4 together form a circular array. Under low load conditions or localized air supply requirements, the rectangular array's full-area air supply method can cause some airflow to deviate from the target area, resulting in energy waste. The circular array concentrates the fan modules 67 on the same circumference. After the airflow is delivered from the circular array, it perfectly matches the cross-sectional shape of the downstream circular duct, resulting in a smooth airflow transition and significantly reducing local resistance losses. After the peripheral fans 67 converge towards the center, the various airflows converge to form a more concentrated airflow beam, resulting in a longer air delivery range and precise projection onto distant heat sources. The circular symmetrical layout eliminates the inherent vortex areas at the four corners of the rectangle, making the airflow organization more orderly and significantly improving the air supply quality. The coordinated operation of multiple fan modules 67 in the circular array allows for the reduction of some fan modules 67 while meeting airflow requirements, further reducing system energy consumption.

[0060] When it is necessary to switch back from the second mode to the first mode, the operation is reversed: release the positioning double plug 653, move the peripheral fan module 6 radially outward along the slide groove 5 to the initial position, reinsert the positioning double plug 653 to lock it, and the wind wall returns to the rectangular array.

Claims

1. A smart energy-saving air conditioning unit with an EC fan and air wall, characterized in that, include: A circular fixing plate (1) includes a first ring plate (11), a second ring plate (12) and a center plate (13) connected sequentially from the outside to the inside. The first ring plate (11), the second ring plate (12) and the center plate (13) are arranged on the same plane. The first ring plate (11), the second ring plate (12) and the center plate (13) are all composed of a plate surface and a vibration isolation pad fixed to the inner side of the plate surface. A central fan module (4) is fixedly connected to the inner center of the central plate (13), and several peripheral fan modules (6) are equidistantly connected to the inner edge of the central plate (13) in the circumferential direction. The centers of the several peripheral fan modules (6) are all located on the first circumference. The inner side of the second ring plate (12) is equidistantly connected with a number of peripheral fan modules (6) in the circumferential direction, and the center of each of the peripheral fan modules (6) is located on the second circumference. The inner side of the circular fixed plate (1) is provided with several sliding grooves (5), and each peripheral fan module (6) is slidably connected to one sliding groove (5) so as to realize the independent radial movement of the peripheral fan module (6); The wind wall has a first mode and a second mode. In the first mode, the central fan module (4) and all peripheral fan modules (6) are arranged in a rectangular array. In the second mode, all peripheral fan modules (6) move along the corresponding slide (5) to the same circumference and form a circular array together with the central fan module (4).

2. The intelligent energy-saving air conditioning unit EC fan wall according to claim 1, characterized in that, The inner side of the first ring plate (11) is provided with a first air outlet (31), the inner side of the second ring plate (12) is provided with a second air outlet (32), the inner edge of the center plate (13) is provided with a third air outlet (33), and the inner center of the center plate (13) is provided with a fourth air outlet (34). The first air outlet (31), the second air outlet (32), the third air outlet (33), and the fourth air outlet (34) are all through holes for the fan (67) to discharge air. The inner side of the circular fixing plate (1) is provided with several through holes (35). Each through hole is adapted to two through holes (35). The two through holes (35) are symmetrically distributed on both sides of the through hole. The through holes (35) are used to cooperate with the insertion and positioning to lock the position of the peripheral fan module (6).

3. The intelligent energy-saving air conditioning unit EC fan wall according to claim 1, characterized in that, The outer side of the circular fixed plate (1) is connected to a sealing element (2). The sealing element (2) includes several first plates (21) and several second plates (22). Each first plate (21) is matched with a peripheral fan module (6) located on the first circumference, and each second plate (22) is matched with a peripheral fan module (6) located on the second circumference. The first plate (21) and the second plate (22) are both sealing plates (27). Each sealing plate (27) has several windows (26) through it. Each window (26) is matched with an air outlet. The number of windows (26) on the first plate (21) is one more than the number of windows (26) on the second plate (22). The center of the first air outlet (31) on the first ring plate (11) is located on the third circumference.

4. The intelligent energy-saving air conditioning unit EC fan wall according to claim 3, characterized in that, Each of the sealing plates (27) consists of a vertical strip (23) and several horizontal strips (24). One side of each of the horizontal strips (24) is fixedly connected to the same side of the vertical strip (23). Slots (25) are provided at the edges of adjacent horizontal strips (24). Each window (26) is matched with two slots (25) and the window (26) is connected to the slots (25). The window (26) is also matched with a sealing plate (27). The sealing plate (27) is inserted into the slot (25). The sealing plate (27) is used to detachably seal the unused window (26).

5. The intelligent energy-saving air conditioning unit EC fan wall according to claim 1, characterized in that, The peripheral fan module (6) has the same structure as the central fan module (4). The peripheral fan module (6) includes: a mounting plate (61), a slider (62) is fixedly connected to the outside of the mounting plate (61), the slider (62) is slidably connected to the slide groove (5), a plurality of threaded holes (66) are opened through the plate surface of the mounting plate (61), the mounting plate (61) is detachably fixedly connected to the circular fixing plate (1) through the threaded holes (66) by threaded connectors, and a fan (67) is fixedly connected to the center of the inner side of the mounting plate (61).

6. The intelligent energy-saving air conditioning unit EC fan wall according to claim 5, characterized in that, The mounting plate (61) has four corners on its inner side fixedly connected with take-up vertical plates (63). The take-up vertical plates (63) are used to separately accommodate high-voltage wires and low-voltage wires. One end of the take-up vertical plate (63) is provided with several connecting plates (64). Both ends of each connecting plate (64) are fixedly connected to the side of the adjacent two take-up vertical plates (63). The take-up vertical plate (63) includes a main body (631). The main body (631) is fixedly connected to the inner side of the mounting plate (61). One end of the main body (631) is provided with a receiving cavity. (632) The inner side of the main body (631) is provided with a plurality of wire outlet holes (635) at equal intervals. The wire outlet holes (635) are connected to the receiving cavity (632). The inner wall of the receiving cavity (632) is connected to a limiting plate (633). A limiting hole is provided between the inner wall of the main body (631) and the limiting plate (633). The receiving cavity (632) is provided with a pull plate (634). The pull plate (634) is slidably connected to the limiting hole. The wires in the receiving cavity (632) extend out of the wire outlet holes (635) and are connected to the fan (67).

7. The intelligent energy-saving air conditioning unit EC fan wall according to claim 6, characterized in that, The mounting plate (61) is symmetrically provided with side plates (651) on both sides. Each side plate (651) is fixedly connected to two ends with a reinforcing plate (654). The side plate (651) and the reinforcing plates (654) at both ends form a positioning plate. A positioning hole (655) is opened through one side of the positioning plate. A plug (652) is fixedly connected to the outside of each hole (35).

8. The intelligent energy-saving air conditioning unit EC fan wall according to claim 7, characterized in that, Each of the peripheral fan modules (6) is equipped with a positioning double plug rod (653). One end of each positioning double plug rod (653) passes through the positioning hole (655) and is inserted into the corresponding plug tube (652). One of the reinforcing plates (654) is fixedly connected to one side of the connecting plate (64), and the other reinforcing plate (654) is fixedly connected to one side of the mounting plate (61).

9. The intelligent energy-saving air conditioning unit EC fan wall according to claim 8, characterized in that, Each of the positioning holes (655) is adapted to a plug (652), which is connected to the corresponding through hole (35). The plug (652) is used to engage with the positioning double plug (653) to lock the position of the peripheral fan module (6).

10. The intelligent energy-saving air conditioning unit EC fan wall according to claim 1, characterized in that, When the wind wall switches between the first mode and the second mode, the peripheral fan module (6) moves radially along the slide (5). The extension direction of the slide (5) is the radial direction of the circular fixed plate (1), and several slides (5) are evenly distributed radially with the center of the circular fixed plate (1) as the center.

Images