Current sharing structure, air supply device and air purification equipment

Abstract

The application relates to a current equalizing structure, an air supply device and air purification equipment, and relates to the technical field of air purification equipment. The current equalizing structure is applied to a fan, and the current equalizing structure comprises a flow guide plate and a plurality of flow blocking plates. The flow guide plate is arranged at an air outlet of the fan, a plurality of spaced flow guide areas are arranged on the flow guide plate, each flow guide area is provided with a plurality of flow guide holes penetrating through the thickness direction of the flow guide plate, the plurality of flow blocking plates correspond to the plurality of flow guide areas one by one, the flow blocking plate and the corresponding flow guide area are arranged in a laminated mode, and a plurality of flow blocking holes corresponding to the plurality of flow guide holes one by one are arranged on the flow blocking plate. Wherein, each flow blocking plate is configured to independently move relative to the flow guide plate, so as to change the overlapping area of the flow blocking hole and the corresponding flow guide hole, and adjust the air flow through the corresponding flow guide area. The technical scheme disclosed by the application can make the air flow uniformly distributed on the surface of the filter screen.

Description

Technical Field

[0001] This application relates to the field of air purification equipment technology, and in particular to a flow equalization structure, an air supply device, and an air purification device. Background Technology

[0002] In air purification equipment, the airflow guidance method of the fan directly affects the efficiency and lifespan of the filter. Existing equipment typically uses a vertical, forward-blowing method to guide airflow through the filter for air purification. However, this method tends to cause airflow to concentrate in the central area of ​​the filter, while the edge areas receive insufficient airflow. This uneven airflow distribution leads to excessive load on the central area of ​​the filter, causing premature clogging and resulting in reduced purification efficiency, increased fan load, and shortened filter lifespan. Utility Model Content

[0003] This application provides a flow equalization structure, an air supply device, and an air purification equipment, which enables airflow to be evenly distributed on the filter surface.

[0004] Firstly, this application provides a flow equalization structure applied to an air supply device, the flow equalization structure comprising: A guide plate is disposed on the air outlet of the air supply device. The guide plate is provided with multiple spaced-apart guide areas, and each guide area is provided with multiple guide holes penetrating the thickness direction of the guide plate. Multiple baffles are provided, each corresponding to one of the multiple flow guiding areas. The baffles and the corresponding flow guiding areas are stacked in layers, and the baffles are provided with multiple baffle holes that correspond one-to-one with the multiple flow guiding holes. Each of the baffles is configured to move independently relative to the guide plate to change the overlapping area of ​​the baffle hole and the corresponding guide hole, thereby adjusting the airflow through the corresponding guide region.

[0005] In some embodiments, a plurality of the flow guiding regions are arranged in a planar array on the flow guiding plate; wherein the baffle is located downstream of the airflow of the flow guiding plate and is configured to be movable in a plane parallel to the flow guiding plate.

[0006] In some embodiments, the deflector has a windward side and a leeward side disposed opposite to each other in the thickness direction; the cross-sectional area of ​​the deflector hole increases with the increase of the vertical distance between the center point of the deflector hole on the leeward side and the central axis of the deflector.

[0007] In some embodiments, the central axis of the guide hole has a guide angle with the central axis of the guide plate, and the vertical distance between the center point of the guide hole on the leeward side and the central axis of the guide plate is greater than the vertical distance between the center point of the guide hole on the windward side and the central axis of the guide plate; wherein, the plurality of guide angles increase as the vertical distance between the center point of the guide hole on the leeward side and the central axis of the guide plate increases.

[0008] In some embodiments, the density of the flow guide holes on the flow guide plate gradually decreases in the direction from the projection point of the central axis of the flow guide plate to the outer periphery.

[0009] In some embodiments, the cross-sectional area of ​​the flow-blocking hole is the same as the cross-sectional area of ​​the corresponding flow-guiding hole, the shape of the cross-section of the flow-blocking hole is the same as the shape of the cross-section of the corresponding flow-guiding hole, and the central axis of the flow-blocking hole is parallel to the central axis of the corresponding flow-guiding hole.

[0010] Secondly, this application provides an air supply device, comprising: Fan, including air outlet; As described in the first aspect, the flow equalization structure is disposed within the air outlet; A filter screen is disposed downstream of the airflow in the flow equalization structure, and the filter screen is used to filter the airflow after it has been equalized by the flow equalization structure.

[0011] In some embodiments, including: Multiple pressure sensors are disposed on the side of the filter screen away from the flow equalization structure and arranged at intervals, with each flow guiding area corresponding to at least one pressure sensor; The controller has a control terminal that is electrically connected to multiple pressure sensors and drives one or more baffles to move. The controller is configured to control the movement of the baffles in the flow guiding area corresponding to the pressure sensor according to the detected pressure of the pressure sensor, so as to adjust the airflow through the flow guiding area.

[0012] In some embodiments, the central axis of the air outlet has an inclined angle with the height direction of the fan, and the filter screen is perpendicular to the height direction.

[0013] Thirdly, this application provides an air purification device, characterized in that it includes: The housing has an air inlet and an air outlet on opposite sides. The air supply device as described in the second aspect is disposed inside the housing, and the air inlet of the air supply device is connected to the air inlet. A heat exchanger is disposed inside the housing and located downstream of the airflow of the air supply device; wherein the inlet of the heat exchanger is connected to the air outlet of the air supply device, and the outlet of the heat exchanger is connected to the air supply outlet, so that the airflow flows sequentially through the air supply device and the heat exchanger.

[0014] The technical solutions provided in this application have the following advantages compared with the prior art: The flow equalization structure provided in this application provides a basis for airflow distribution through multiple spaced-apart flow guide regions on the flow guide plate and flow guide holes on the flow guide regions. Multiple baffles are stacked one-to-one with the flow guide regions, and the independent movement of the baffles relative to the flow guide plates dynamically adjusts the airflow direction and distribution. By changing the overlapping area of ​​the baffle holes and the flow guide holes, the airflow resistance in each flow guide region is precisely adjusted. A larger overlapping area results in lower resistance and higher airflow, while a smaller overlapping area results in higher resistance and lower airflow, thereby optimizing the airflow. Specifically, on the one hand, the hole size of different flow guide regions can be adjusted specifically for different areas of the filter. For the flow guide region corresponding to the middle area of ​​the filter, the overlapping area is reduced to increase resistance and reduce airflow, while the size of the holes at the filter edge is adjusted accordingly. The increased overlap area of ​​the corresponding flow guiding zones reduces resistance and increases airflow, allowing the airflow to form a multi-directional diffusion flow field before reaching the filter. This ensures thorough and uniform airflow coverage across the entire filter surface, preventing excessive airflow load on only the central area. Furthermore, the multi-directional diffusion flow field and uniform airflow coverage allow all areas of the filter to simultaneously bear appropriate pollutant retention pressure. This prevents premature clogging in the central area due to low resistance and excessive airflow, while utilizing the filtration potential of the filter edges. This eliminates the need for complete filter replacement after central clogging, extending filter life and reducing user maintenance costs. Simultaneously, the fan does not need to increase its operating load to overcome additional resistance, reducing energy consumption and component wear. Additionally, each baffle can move independently to adjust airflow, improving the flexibility and adaptability of the flow equalization structure. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a schematic diagram of the air supply device provided in the embodiments of this application; Figure 2 for Figure 2 Enlarged view of section A; Figure 3 A partial cross-sectional view of the flow equalization structure provided in the embodiment of this application in the main viewing direction; Figure 4 A schematic diagram of the structure provided in the embodiment of this application when the overlapping area of ​​the guide hole and the baffle hole in the flow equalization structure is reduced; Figure 5 A top view of the flow equalization structure provided in an embodiment of this application; Figure 6 An exploded view of the flow sharing structure provided in the embodiments of this application; Figure 7 This is a top view of the flow equalization structure provided in this application embodiment when the overlapping area of ​​the guide hole and the baffle hole is reduced; Figure 8 This is a schematic diagram of the structure of an air purification device provided in an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures: 1. Casing; 2. Air inlet; 3. Air outlet; 4. Air supply device; 5. Heat exchanger; 100. Flow equalization structure; 110. Deflector plate; 1101. Flow guiding area; 1102. Flow guiding hole; 1103. Separator; 1104. Windward side; 1105. Leeward side; 120. Baffle plate; 1201. Baffle hole; 200. Fan; 210. Air outlet; 300. Filter screen. Detailed Implementation

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

[0021] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0022] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0023] In air purification equipment, the airflow guidance method of the fan directly affects the efficiency and lifespan of the filter. Existing equipment typically uses a vertical forward blowing method to guide airflow through the filter to achieve air purification. However, this vertical forward blowing method has significant drawbacks: because the airflow tends to form a concentrated flow path during vertical forward blowing, the airflow mainly acts on the central area of ​​the filter, while the edge areas of the filter, due to limited airflow coverage and insufficient airflow intensity, cannot fully participate in the air filtration process.

[0024] Uneven airflow can cause a series of problems: On the one hand, the central area of ​​the filter is subjected to excessive airflow impact and pollutant trapping load for a long time, making it prone to premature clogging. This reduces the overall filtration channels of the filter, directly leading to a significant decrease in the purification efficiency of the air purifier. On the other hand, as the clogging in the central area of ​​the filter intensifies, the fan needs to overcome greater airflow resistance to maintain the preset airflow rate, increasing the fan's operating load. This can not only increase the energy consumption of the equipment but also accelerate the wear and tear of fan components. At the same time, because the edge areas of the filter are not effectively utilized, the overall filtration potential of the filter is wasted. Even if the edge areas still have filtration capacity after the central area of ​​the filter is clogged, the entire filter needs to be replaced. Ultimately, this significantly shortens the actual service life of the filter, increasing the user's operating costs and the frequency of equipment maintenance.

[0025] Example 1 In response to the above technical problems, such as Figures 1-7 As shown in the figure, this application embodiment provides a flow equalization structure 100, which is applied to an air supply device 4. The flow equalization structure 100 includes a guide plate 110 and a plurality of baffles 120. The guide plate 110 is disposed on the air outlet 210 of the air supply device 4. The guide plate 110 is provided with a plurality of spaced-apart flow guiding regions 1101. Each flow guiding region 1101 is provided with a plurality of flow guiding holes 1102 penetrating the thickness direction of the guide plate 110. The plurality of baffles 120 correspond one-to-one with the plurality of flow guiding regions 1101. The baffles 120 and the corresponding flow guiding regions 1101 are stacked and arranged, and the baffles 120 are provided with a plurality of baffle holes 1201 corresponding one-to-one with the plurality of flow guiding holes 1102. Each baffle 120 is configured to be able to move independently relative to the guide plate 110 to change the overlapping area of ​​the baffle hole 1201 and the corresponding flow guiding hole 1102, thereby adjusting the airflow through the corresponding flow guiding region 1101.

[0026] As can be seen from the above, the multiple spaced-apart flow guide regions 1101 and flow guide holes 1102 on the flow guide region 1101 provide the basis for airflow distribution. The multiple baffles 120, stacked one-to-one with the flow guide regions 1101, combined with the independent movement of the baffles 120 relative to the flow guide 110, dynamically adjust the airflow direction and distribution. By changing the overlapping area of ​​the baffle holes 1201 and the flow guide holes 1102, the airflow resistance of each flow guide region 1101 is precisely adjusted. A larger overlapping area results in lower resistance and higher airflow, while a smaller overlapping area results in higher resistance and lower airflow, thus optimizing the airflow. Specifically, on the one hand, the hole size of different flow guide regions 1101 can be adjusted specifically for different areas of the filter 300. For the flow guide region 1101 corresponding to the central area of ​​the filter 300, the overlapping area is reduced to increase resistance and reduce airflow. The overlapping area of ​​the guide area 1101 corresponding to the edge region of the filter 300 is increased to reduce resistance and increase airflow. This allows the airflow to form a multi-directional diffusion flow field before reaching the filter 300 due to the resistance differences in different areas. This ensures that the airflow evenly covers the entire surface of the filter 300, preventing the central region of the filter 300 from bearing excessive airflow load. On the other hand, the multi-directional diffusion flow field and uniform airflow coverage allow all areas of the filter 300 to simultaneously bear reasonable pollutant retention pressure. This prevents premature clogging of the central region of the filter 300 due to insufficient resistance and excessive airflow, and utilizes the filtration potential of the edge region of the filter 300. This eliminates the need to replace the entire filter 300 after clogging in the central region, extending the service life of the filter 300 and reducing user maintenance costs. At the same time, the fan 200 does not need to increase its operating load to overcome additional resistance, reducing equipment energy consumption and minimizing wear on fan 200 components. In addition, each baffle 120 can move independently to adjust the airflow, improving the flexibility and adaptability of the flow equalization structure 100.

[0027] It should be noted that, as Figure 2 , Figure 4 As shown, the flow guide plate 110 is provided with a plurality of spaced-apart partitions 1103, thereby dividing a plurality of flow guide areas 1101. The flow guide areas 1101 are located between two adjacent partitions 1103. The areas of the flow guide areas 1101 may be equal or unequal, and this application does not impose any specific restrictions.

[0028] It should also be noted that when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 decreases, the airflow rate decreases; when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 increases, the airflow rate increases. Understandably, to reduce the airflow rate in the central region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the central region of the filter 300 is driven to move, thus reducing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120; to increase the airflow rate in the edge region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the edge region of the filter 300 is driven to move, thus increasing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120.

[0029] It should also be noted that the overlapping area of ​​the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 is always greater than zero, that is, the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 are always connected, ensuring that there is always airflow.

[0030] Example 2 like Figures 1-7 As shown in the figure, this application embodiment provides a flow equalization structure 100, which is applied to an air supply device 4. The flow equalization structure 100 includes a guide plate 110 and a plurality of baffles 120. The guide plate 110 is disposed on the air outlet 210 of the air supply device 4. The guide plate 110 is provided with a plurality of spaced-apart flow guiding regions 1101. Each flow guiding region 1101 is provided with a plurality of flow guiding holes 1102 penetrating the thickness direction of the guide plate 110. The plurality of baffles 120 correspond one-to-one with the plurality of flow guiding regions 1101. The baffles 120 and the corresponding flow guiding regions 1101 are stacked and arranged, and the baffles 120 are provided with a plurality of baffle holes 1201 corresponding one-to-one with the plurality of flow guiding holes 1102. Each baffle 120 is configured to be able to move independently relative to the guide plate 110 to change the overlapping area of ​​the baffle hole 1201 and the corresponding flow guiding hole 1102, thereby adjusting the airflow through the corresponding flow guiding region 1101.

[0031] As can be seen from the above, the multiple spaced-apart flow guide regions 1101 and flow guide holes 1102 on the flow guide region 1101 provide the basis for airflow distribution. The multiple baffles 120, stacked one-to-one with the flow guide regions 1101, combined with the independent movement of the baffles 120 relative to the flow guide 110, dynamically adjust the airflow direction and distribution. By changing the overlapping area of ​​the baffle holes 1201 and the flow guide holes 1102, the airflow resistance of each flow guide region 1101 is precisely adjusted. A larger overlapping area results in lower resistance and higher airflow, while a smaller overlapping area results in higher resistance and lower airflow, thus optimizing the airflow. Specifically, on the one hand, the hole size of different flow guide regions 1101 can be adjusted specifically for different areas of the filter 300. For the flow guide region 1101 corresponding to the central area of ​​the filter 300, the overlapping area is reduced to increase resistance and reduce airflow. The overlapping area of ​​the guide area 1101 corresponding to the edge region of the filter 300 is increased to reduce resistance and increase airflow. This allows the airflow to form a multi-directional diffusion flow field before reaching the filter 300 due to the resistance differences in different areas. This ensures that the airflow evenly covers the entire surface of the filter 300, preventing the central region of the filter 300 from bearing excessive airflow load. On the other hand, the multi-directional diffusion flow field and uniform airflow coverage allow all areas of the filter 300 to simultaneously bear reasonable pollutant retention pressure. This prevents premature clogging of the central region of the filter 300 due to insufficient resistance and excessive airflow, and utilizes the filtration potential of the edge region of the filter 300. This eliminates the need to replace the entire filter 300 after clogging in the central region, extending the service life of the filter 300 and reducing user maintenance costs. At the same time, the fan 200 does not need to increase its operating load to overcome additional resistance, reducing equipment energy consumption and minimizing wear on fan 200 components. In addition, each baffle 120 can move independently to adjust the airflow, improving the flexibility and adaptability of the flow equalization structure 100.

[0032] It should be noted that, as Figure 2 , Figure 5 As shown, the flow guide plate 110 is provided with a plurality of spaced-apart partitions 1103, thereby dividing a plurality of flow guide areas 1101. The flow guide areas 1101 are located between two adjacent partitions 1103. The areas of the flow guide areas 1101 may be equal or unequal, and this application does not impose any specific restrictions.

[0033] It should also be noted that when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 decreases, the airflow rate decreases; when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 increases, the airflow rate increases. Understandably, to reduce the airflow rate in the central region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the central region of the filter 300 is driven to move, thus reducing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120; to increase the airflow rate in the edge region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the edge region of the filter 300 is driven to move, thus increasing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120.

[0034] It should also be noted that the overlapping area of ​​the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 is always greater than zero, that is, the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 are always connected, ensuring that there is always airflow.

[0035] In some embodiments, a plurality of flow guiding regions 1101 are arranged in a planar array on the flow guide plate 110; wherein, the baffle plate 120 is located downstream of the airflow of the flow guide plate 110 and is configured to move in a plane parallel to the flow guide plate 110.

[0036] By arranging multiple flow guiding regions 1101 in a planar array, the flow guide plate 110 can be divided into regular and uniform airflow distribution units. Each flow guiding region 1101 can accurately correspond to a specific area on the filter screen 300, so that the airflow is evenly distributed to the corresponding positions on the filter screen 300 according to the array. In addition, by arranging the baffle plate 120 downstream of the airflow of the flow guide plate 110, the baffle plate 120 can directly act on the airflow after it has been guided and regulated, and directly affect the airflow rate, thereby improving the adjustment efficiency. At the same time, the way the baffle plate 120 moves parallel to the plane of the flow guide plate 110 is simple and convenient to operate, and can accurately control the size of the overlapping area to match different airflow requirements.

[0037] It should be noted that multiple guide regions 1101 are arranged in a planar array on the guide plate 110. This planar array arrangement includes, but is not limited to, multiple guide plates 110 arranged in a multi-row, multi-column matrix, or arranged circumferentially around the central axis of the guide plate 110; for example, as... Figure 4 As shown, multiple flow guiding regions 1101 are arranged sequentially along the length of the flow guiding plate 110, and the separators 1103 are arranged sequentially along the length of the flow guiding plate 110. The flow guiding region 1101 is located between two adjacent separators 1103.

[0038] It should also be noted that the two ends of the baffle 120 are movably mounted on the separator 1103. Multiple linear drive mechanisms can be provided on the guide plate 110, each corresponding to one of the baffles 120. The linear drive mechanisms are connected to their respective baffles 120, driving the baffles 120 to move independently along the width or length direction of the guide plate 110; for example, as... Figure 7 As shown, the overlapping area of ​​the baffle 1201 and the corresponding guide hole 1102 can be changed along the width direction of the guide plate 110; for example... Figure 4 As shown, the overlapping area of ​​the baffle hole 1201 and the corresponding guide hole 1102 can be changed along the length direction of the guide plate 110. It is understood that the linear drive mechanism includes, but is not limited to, electric push rods and linear motors.

[0039] It should also be noted that, such as Figure 5 As shown, the length direction of the guide plate 110 is parallel to the X direction, and the width direction of the guide plate 110 is parallel to the Y direction.

[0040] It should also be noted that the guide plate 110 can be set perpendicular to the central axis of the air outlet 210. By setting the guide plate 110 perpendicular to the central axis of the air outlet 210, it forms a vertical interception and guidance with the air outlet direction of the fan 200, which avoids the airflow from being dispersed or deviated due to angular deviation, and ensures that the airflow can enter the guide area 1101 in an orderly manner for airflow distribution.

[0041] like Figure 2 , Figure 3 As shown, in some embodiments, the deflector 110 has a windward side 1104 and a leeward side 1105 disposed opposite to each other in the thickness direction; the cross-sectional area of ​​the deflector hole 1102 increases with the increase of the vertical distance between the center point of the deflector hole 1102 on the leeward side 1105 and the central axis of the deflector 110.

[0042] By varying the cross-sectional area of ​​multiple guide holes 1102, a layout is formed where the cross-sectional area of ​​the guide holes 1102 near the central axis of the guide plate 110 is small, and the cross-sectional area of ​​the guide holes 1102 far from the central axis of the guide plate 110 is large. This balances the airflow intensity in different areas of the air outlet 210, with the central area of ​​the air outlet 210 having stronger airflow kinetic energy. If the cross-sectional area of ​​the guide holes 1102 were the same, the airflow in the central area of ​​the air outlet 210 would easily create a concentrated impact on the filter 300, while the kinetic energy in the edge area of ​​the air outlet 210 would be relatively weak. On the one hand, by setting the guide holes 1102 that are close to the central axis as small holes, the airflow intensity in the central area is balanced. The guide holes 1102 with a long vertical distance from the axis are set as large holes, which can adjust the airflow resistance by utilizing the difference in cross-sectional area. That is, the small holes in the central area generate greater resistance, reducing the airflow velocity and the impact intensity, while the large holes in the edge area generate less resistance, increasing the airflow throughput and supplementing the flow rate. This offsets the difference in air kinetic energy in different areas, allowing the airflow to flow more evenly to the entire area of ​​the filter screen 300 after passing through different guide areas 1101. On the other hand, it can reduce the flow loss of airflow in the guide plate 110. The large holes in the edge area can reduce resistance, allowing weak kinetic energy airflow to pass smoothly through the guide holes 1102, reducing eddies and stagnation, and improving airflow utilization efficiency.

[0043] It should be noted that the shape of the deflector 110 can be circular or rectangular. When the shape of the deflector 110 is rectangular, the central axis of the deflector 110 is a straight line passing through the geometric center and perpendicular to the deflector 110; for example, as... Figure 2 , Figure 3 As shown, the central axis of the guide vane 110 is PP'.

[0044] It should also be noted that, such as Figure 3 As shown, the guide hole 1102 is a circular hole. When the guide hole 1102 is a circular hole, its cross-sectional area increases with the increase of the distance between the center of the guide hole 1102 and the central axis of the guide plate 110. That is, the diameter of the guide hole 1102 increases with the increase of the distance between the center of the guide hole 1102 and the central axis of the guide plate 110. Therefore, the guide holes 1102 closer to the central axis of the guide plate 110 are small-diameter, and the guide holes 1102 farther from the central axis of the guide plate 110 are large-diameter. For example, as... Figure 2 As shown, the distance between one guide hole 1102 and the central axis of the guide plate 110 is L1, and the diameter of the guide hole 1102 is D1. The distance between the other guide hole 1102 and the central axis of the guide plate 110 is L2, and the diameter of the guide hole 1102 is D2. Since L1 < L2, then D1 < D2.

[0045] Of course, the guide hole 1102 can also be other shapes, including but not limited to polygons and ellipses; understandably, the shapes of the guide holes 1102 can be the same or different.

[0046] Example 3 like Figures 1-7 As shown in the figure, this application embodiment provides a flow equalization structure 100, which is applied to an air supply device 4. The flow equalization structure 100 includes a guide plate 110 and a plurality of baffles 120. The guide plate 110 is disposed on the air outlet 210 of the air supply device 4. The guide plate 110 is provided with a plurality of spaced-apart flow guiding regions 1101. Each flow guiding region 1101 is provided with a plurality of flow guiding holes 1102 penetrating the thickness direction of the guide plate 110. The plurality of baffles 120 correspond one-to-one with the plurality of flow guiding regions 1101. The baffles 120 and the corresponding flow guiding regions 1101 are stacked and arranged, and the baffles 120 are provided with a plurality of baffle holes 1201 corresponding one-to-one with the plurality of flow guiding holes 1102. Each baffle 120 is configured to be able to move independently relative to the guide plate 110 to change the overlapping area of ​​the baffle hole 1201 and the corresponding flow guiding hole 1102, thereby adjusting the airflow through the corresponding flow guiding region 1101.

[0047] As can be seen from the above, the multiple spaced-apart flow guide regions 1101 and flow guide holes 1102 on the flow guide region 1101 provide the basis for airflow distribution. The multiple baffles 120, stacked one-to-one with the flow guide regions 1101, combined with the independent movement of the baffles 120 relative to the flow guide 110, dynamically adjust the airflow direction and distribution. By changing the overlapping area of ​​the baffle holes 1201 and the flow guide holes 1102, the airflow resistance of each flow guide region 1101 is precisely adjusted. A larger overlapping area results in lower resistance and higher airflow, while a smaller overlapping area results in higher resistance and lower airflow, thus optimizing the airflow. Specifically, on the one hand, the hole size of different flow guide regions 1101 can be adjusted specifically for different areas of the filter 300. For the flow guide region 1101 corresponding to the central area of ​​the filter 300, the overlapping area is reduced to increase resistance and reduce airflow. The overlapping area of ​​the guide area 1101 corresponding to the edge region of the filter 300 is increased to reduce resistance and increase airflow. This allows the airflow to form a multi-directional diffusion flow field before reaching the filter 300 due to the resistance differences in different areas. This ensures that the airflow evenly covers the entire surface of the filter 300, preventing the central region of the filter 300 from bearing excessive airflow load. On the other hand, the multi-directional diffusion flow field and uniform airflow coverage allow all areas of the filter 300 to simultaneously bear reasonable pollutant retention pressure. This prevents premature clogging of the central region of the filter 300 due to insufficient resistance and excessive airflow, and utilizes the filtration potential of the edge region of the filter 300. This eliminates the need to replace the entire filter 300 after clogging in the central region, extending the service life of the filter 300 and reducing user maintenance costs. At the same time, the fan 200 does not need to increase its operating load to overcome additional resistance, reducing equipment energy consumption and minimizing wear on fan 200 components. In addition, each baffle 120 can move independently to adjust the airflow, improving the flexibility and adaptability of the flow equalization structure 100.

[0048] It should be noted that, as Figure 2 , Figure 5 As shown, the flow guide plate 110 is provided with a plurality of spaced-apart partitions 1103, thereby dividing a plurality of flow guide areas 1101. The flow guide areas 1101 are located between two adjacent partitions 1103. The areas of the flow guide areas 1101 may be equal or unequal, and this application does not impose any specific restrictions.

[0049] It should also be noted that when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 decreases, the airflow rate decreases; when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 increases, the airflow rate increases. Understandably, to reduce the airflow rate in the central region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the central region of the filter 300 is driven to move, thus reducing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120; to increase the airflow rate in the edge region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the edge region of the filter 300 is driven to move, thus increasing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120.

[0050] It should also be noted that the overlapping area of ​​the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 is always greater than zero, that is, the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 are always connected, ensuring that there is always airflow.

[0051] In some embodiments, a plurality of flow guiding regions 1101 are arranged in a planar array on the flow guide plate 110; wherein, the baffle plate 120 is located downstream of the airflow of the flow guide plate 110 and is configured to move in a plane parallel to the flow guide plate 110.

[0052] By arranging multiple flow guiding regions 1101 in a planar array, the flow guide plate 110 can be divided into regular and uniform airflow distribution units. Each flow guiding region 1101 can accurately correspond to a specific area on the filter screen 300, so that the airflow is evenly distributed to the corresponding positions on the filter screen 300 according to the array. In addition, by arranging the baffle plate 120 downstream of the airflow of the flow guide plate 110, the baffle plate 120 can directly act on the airflow after it has been guided and regulated, and directly affect the airflow rate, thereby improving the adjustment efficiency. At the same time, the way the baffle plate 120 moves parallel to the plane of the flow guide plate 110 is simple and convenient to operate, and can accurately control the size of the overlapping area to match different airflow requirements.

[0053] It should be noted that multiple guide regions 1101 are arranged in a planar array on the guide plate 110. This planar array arrangement includes, but is not limited to, multiple guide plates 110 arranged in a multi-row, multi-column matrix, or arranged circumferentially around the central axis of the guide plate 110; for example, as... Figure 4 As shown, multiple flow guiding regions 1101 are arranged sequentially along the length of the flow guiding plate 110, and the separators 1103 are arranged sequentially along the length of the flow guiding plate 110. The flow guiding region 1101 is located between two adjacent separators 1103.

[0054] It should also be noted that the two ends of the baffle 120 are movably mounted on the separator 1103. Multiple linear drive mechanisms can be provided on the guide plate 110, each corresponding to one of the baffles 120. The linear drive mechanisms are connected to their respective baffles 120, driving the baffles 120 to move independently along the width or length direction of the guide plate 110; for example, as... Figure 7 As shown, the overlapping area of ​​the baffle 1201 and the corresponding guide hole 1102 can be changed along the width direction of the guide plate 110; for example... Figure 4 As shown, the overlapping area of ​​the baffle hole 1201 and the corresponding guide hole 1102 can be changed along the length direction of the guide plate 110. It is understood that the linear drive mechanism includes, but is not limited to, electric push rods and linear motors.

[0055] It should also be noted that, such as Figure 5 As shown, the length direction of the guide plate 110 is parallel to the X direction, and the width direction of the guide plate 110 is parallel to the Y direction.

[0056] It should also be noted that the guide plate 110 can be set perpendicular to the central axis of the air outlet 210. By setting the guide plate 110 perpendicular to the central axis of the air outlet 210, it forms a vertical interception and guidance with the air outlet direction of the fan 200, which avoids the airflow from being dispersed or deviated due to angular deviation, and ensures that the airflow can enter the guide area 1101 in an orderly manner for airflow distribution.

[0057] like Figure 2 , Figure 3 As shown, in some embodiments, the deflector 110 has a windward side 1104 and a leeward side 1105 disposed opposite to each other in the thickness direction; the cross-sectional area of ​​the deflector hole 1102 increases with the increase of the vertical distance between the center point of the deflector hole 1102 on the leeward side 1105 and the central axis of the deflector 110.

[0058] By varying the cross-sectional area of ​​multiple guide holes 1102, a layout is formed where the cross-sectional area of ​​the guide holes 1102 near the central axis of the guide plate 110 is small, and the cross-sectional area of ​​the guide holes 1102 far from the central axis of the guide plate 110 is large. This balances the airflow intensity in different areas of the air outlet 210, with the central area of ​​the air outlet 210 having stronger airflow kinetic energy. If the cross-sectional area of ​​the guide holes 1102 were the same, the airflow in the central area of ​​the air outlet 210 would easily create a concentrated impact on the filter 300, while the kinetic energy in the edge area of ​​the air outlet 210 would be relatively weak. On the one hand, by setting the guide holes 1102 that are close to the central axis as small holes, the airflow intensity in the central area is balanced. The guide holes 1102 with a long vertical distance from the axis are set as large holes, which can adjust the airflow resistance by utilizing the difference in cross-sectional area. That is, the small holes in the central area generate greater resistance, reducing the airflow velocity and the impact intensity, while the large holes in the edge area generate less resistance, increasing the airflow throughput and supplementing the flow rate. This offsets the difference in air kinetic energy in different areas, allowing the airflow to flow more evenly to the entire area of ​​the filter screen 300 after passing through different guide areas 1101. On the other hand, it can reduce the flow loss of airflow in the guide plate 110. The large holes in the edge area can reduce resistance, allowing weak kinetic energy airflow to pass smoothly through the guide holes 1102, reducing eddies and stagnation, and improving airflow utilization efficiency.

[0059] It should be noted that the shape of the deflector 110 can be circular or rectangular. When the shape of the deflector 110 is rectangular, the central axis of the deflector 110 is a straight line passing through the geometric center and perpendicular to the deflector 110; for example, as... Figure 2 , Figure 3 As shown, the central axis of the guide vane 110 is PP'.

[0060] It should also be noted that, such as Figure 3 As shown, the guide hole 1102 is a circular hole. When the guide hole 1102 is a circular hole, its cross-sectional area increases with the increase of the distance between the center of the guide hole 1102 and the central axis of the guide plate 110. That is, the diameter of the guide hole 1102 increases with the increase of the distance between the center of the guide hole 1102 and the central axis of the guide plate 110. Therefore, the guide holes 1102 closer to the central axis of the guide plate 110 are small-diameter, and the guide holes 1102 farther from the central axis of the guide plate 110 are large-diameter. For example, as... Figure 2 As shown, the distance between one guide hole 1102 and the central axis of the guide plate 110 is L1, and the diameter of the guide hole 1102 is D1. The distance between the other guide hole 1102 and the central axis of the guide plate 110 is L2, and the diameter of the guide hole 1102 is D2. Since L1 < L2, then D1 < D2.

[0061] Of course, the guide hole 1102 can also be other shapes, including but not limited to polygons and ellipses; understandably, the shapes of the guide holes 1102 can be the same or different.

[0062] like Figure 3 As shown, in some embodiments, the central axis of the guide hole 1102 has a guide angle with the central axis of the guide plate 110, and the vertical distance between the center point of the guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is greater than the vertical distance between the center point of the guide hole 1102 on the windward side 1104 and the central axis of the guide plate 110; wherein, the multiple guide angles increase with the increase of the vertical distance between the center point of the guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110.

[0063] The vertical distance between the center point of the guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is greater than the vertical distance between the center point of the guide hole 1102 on the windward side 1104 and the central axis of the guide plate 110. This allows the airflow to gradually diffuse towards the edge as it passes through the guide plate 110, avoiding sudden diffusion that could generate eddies and providing a basis for uniform coverage of the filter screen 300. By varying the guide angle, the airflow is guided to diffuse towards the edge of the filter 300, achieving uniform coverage of the airflow on the surface of the filter 300. Specifically, on the one hand, by setting the central axis of the guide hole 1102, which is close to the central axis of the guide plate 110, to a small angle, and setting the central axis of the guide hole 1102, which is far from the central axis of the guide plate 110, to a large angle, the airflow in the edge area can be pushed to diffuse outwards from the filter 300 using the angle difference. This avoids the problem of insufficient airflow coverage at the edge of the filter 300 in the prior art, allowing the airflow to cover the surface of the filter 300 more evenly and comprehensively. On the other hand, it can optimize the flow field distribution on the surface of the filter 300. By using the varying angle design, the airflow at different positions can be deflected and diffused in an orderly manner according to the preset angle, forming a more stable flow field. It can flow to all areas of the filter 300 without additional energy consumption, reducing the load required for the fan 200 to overcome the resistance of the guide plate 110, thereby improving energy efficiency.

[0064] It should be noted that the guide angle is greater than 0° and less than 90°; for example, such as Figure 3 As shown, the distance between the center point of one guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is L3, and the angle between the central axis of the guide hole 1102 and the central axis of the guide plate 110 is α. The distance between the center point of the other guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is L4, and the angle between the central axis of the guide hole 1102 and the central axis of the guide plate 110 is β. Since L3 < L4, then α < β.

[0065] It should also be noted that the central axis of the guide hole 1102 is coplanar with the central axis of the guide plate 110.

[0066] Example 4 like Figures 1-7As shown in the figure, this application embodiment provides a flow equalization structure 100, which is applied to an air supply device 4. The flow equalization structure 100 includes a guide plate 110 and a plurality of baffles 120. The guide plate 110 is disposed on the air outlet 210 of the air supply device 4. The guide plate 110 is provided with a plurality of spaced-apart flow guiding regions 1101. Each flow guiding region 1101 is provided with a plurality of flow guiding holes 1102 penetrating the thickness direction of the guide plate 110. The plurality of baffles 120 correspond one-to-one with the plurality of flow guiding regions 1101. The baffles 120 and the corresponding flow guiding regions 1101 are stacked and arranged, and the baffles 120 are provided with a plurality of baffle holes 1201 corresponding one-to-one with the plurality of flow guiding holes 1102. Each baffle 120 is configured to be able to move independently relative to the guide plate 110 to change the overlapping area of ​​the baffle hole 1201 and the corresponding flow guiding hole 1102, thereby adjusting the airflow through the corresponding flow guiding region 1101.

[0067] As can be seen from the above, the multiple spaced-apart flow guiding regions 1101 and the flow guiding holes 1102 on the flow guiding regions 1101 provide the basis for airflow distribution. The multiple baffles 120, which are stacked one-to-one with the flow guiding regions 1101, can dynamically adjust the direction and distribution of airflow by coordinating the independent movement of the baffles 120 relative to the flow guiding plate 110. By changing the overlapping area of ​​the baffle holes 1201 and the flow guiding holes 1102, the airflow resistance of each flow guiding region 1101 can be precisely adjusted. A larger overlapping area results in lower resistance and higher airflow, while a smaller overlapping area results in higher resistance and lower airflow, thereby optimizing the airflow. Specifically, on the one hand, the hole size of different flow guiding regions 1101 can be adjusted specifically for different areas of the filter 300. For the flow guiding regions 1101 corresponding to the central area of ​​the filter 300, the overlapping area can be reduced to increase resistance and reduce airflow. The overlapping area of ​​the guide area 1101 corresponding to the edge region of the filter screen 300 is increased to reduce resistance and increase airflow. This allows the airflow to form a multi-directional diffusion flow field before reaching the filter screen 300 due to the resistance differences in different areas. This ensures that the airflow evenly covers the entire surface of the filter screen 300, preventing the central region of the filter screen 300 from bearing excessive airflow load. On the other hand, the multi-directional diffusion flow field and uniform airflow coverage allow all areas of the filter screen 300 to simultaneously bear reasonable pollutant retention pressure. This prevents premature clogging of the central region of the filter screen 300 due to insufficient resistance and excessive airflow, and also utilizes the filtration potential of the edge region of the filter screen 300. This eliminates the need to replace the entire filter screen 300 after clogging in the central region, extending the service life of the filter screen 300 and reducing user maintenance costs. At the same time, the fan 200 does not need to increase its operating load to overcome additional resistance, reducing equipment energy consumption and minimizing wear and tear on fan components. In addition, each baffle 120 can move independently to adjust the airflow, improving the flexibility and adaptability of the flow equalization structure 100.

[0068] It should be noted that, as Figure 2 , Figure 5 As shown, the flow guide plate 110 is provided with a plurality of spaced-apart partitions 1103, thereby dividing a plurality of flow guide areas 1101. The flow guide areas 1101 are located between two adjacent partitions 1103. The areas of the flow guide areas 1101 may be equal or unequal, and this application does not impose any specific restrictions.

[0069] It should also be noted that when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 decreases, the airflow rate decreases; when the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 increases, the airflow rate increases. Understandably, to reduce the airflow rate in the central region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the central region of the filter 300 is driven to move, thus reducing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120; to increase the airflow rate in the edge region of the filter 300, the baffle plate 120 of the guide region 1101 corresponding to the edge region of the filter 300 is driven to move, thus increasing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 of the baffle plate 120.

[0070] It should also be noted that the overlapping area of ​​the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 is always greater than zero, that is, the flow-blocking hole 1201 and the corresponding flow-guiding hole 1102 are always connected, ensuring that there is always airflow.

[0071] In some embodiments, a plurality of flow guiding regions 1101 are arranged in a planar array on the flow guide plate 110; wherein, the baffle plate 120 is located downstream of the airflow of the flow guide plate 110 and is configured to move in a plane parallel to the flow guide plate 110.

[0072] By arranging multiple flow guiding regions 1101 in a planar array, the flow guide plate 110 can be divided into regular and uniform airflow distribution units. Each flow guiding region 1101 can accurately correspond to a specific area on the filter screen 300, so that the airflow is evenly distributed to the corresponding positions on the filter screen 300 according to the array. In addition, by arranging the baffle plate 120 downstream of the airflow of the flow guide plate 110, the baffle plate 120 can directly act on the airflow after it has been guided and regulated, and directly affect the airflow rate, thereby improving the adjustment efficiency. At the same time, the way the baffle plate 120 moves parallel to the plane of the flow guide plate 110 is simple and convenient to operate, and can accurately control the size of the overlapping area to match different airflow requirements.

[0073] It should be noted that multiple guide regions 1101 are arranged in a planar array on the guide plate 110. This planar array arrangement includes, but is not limited to, multiple guide plates 110 arranged in a multi-row, multi-column matrix, or arranged circumferentially around the central axis of the guide plate 110; for example, as... Figure 4As shown, multiple flow guiding regions 1101 are arranged sequentially along the length of the flow guiding plate 110, and the separators 1103 are arranged sequentially along the length of the flow guiding plate 110. The flow guiding region 1101 is located between two adjacent separators 1103.

[0074] It should also be noted that the two ends of the baffle 120 are movably mounted on the separator 1103. Multiple linear drive mechanisms can be provided on the guide plate 110, each corresponding to one of the baffles 120. The linear drive mechanisms are connected to their respective baffles 120, driving the baffles 120 to move independently along the width or length direction of the guide plate 110; for example, as... Figure 7 As shown, the overlapping area of ​​the baffle 1201 and the corresponding guide hole 1102 can be changed along the width direction of the guide plate 110; for example... Figure 4 As shown, the overlapping area of ​​the baffle hole 1201 and the corresponding guide hole 1102 can be changed along the length direction of the guide plate 110. It is understood that the linear drive mechanism includes, but is not limited to, electric push rods and linear motors.

[0075] It should also be noted that, such as Figure 5 As shown, the length direction of the guide plate 110 is parallel to the X direction, and the width direction of the guide plate 110 is parallel to the Y direction.

[0076] It should also be noted that the guide plate 110 can be set perpendicular to the central axis of the air outlet 210. By setting the guide plate 110 perpendicular to the central axis of the air outlet 210, it forms a vertical interception and guidance with the air outlet direction of the fan 200, which avoids the airflow from being dispersed or deviated due to angular deviation, and ensures that the airflow can enter the guide area 1101 in an orderly manner for airflow distribution.

[0077] like Figure 2 , Figure 3 As shown, in some embodiments, the deflector 110 has a windward side 1104 and a leeward side 1105 disposed opposite to each other in the thickness direction; the cross-sectional area of ​​the deflector hole 1102 increases with the increase of the vertical distance between the center point of the deflector hole 1102 on the leeward side 1105 and the central axis of the deflector 110.

[0078] By varying the cross-sectional area of ​​multiple guide holes 1102, a layout is formed where the cross-sectional area of ​​the guide holes 1102 near the central axis of the guide plate 110 is small, and the cross-sectional area of ​​the guide holes 1102 far from the central axis of the guide plate 110 is large. This balances the airflow intensity in different areas of the air outlet 210, with the central area of ​​the air outlet 210 having stronger airflow kinetic energy. If the cross-sectional area of ​​the guide holes 1102 were the same, the airflow in the central area of ​​the air outlet 210 would easily create a concentrated impact on the filter 300, while the kinetic energy in the edge area of ​​the air outlet 210 would be relatively weak. On the one hand, by setting the guide holes 1102 that are close to the central axis as small holes, the airflow intensity in the central area is balanced. The guide holes 1102 with a long vertical distance from the axis are set as large holes, which can adjust the airflow resistance by utilizing the difference in cross-sectional area. That is, the small holes in the central area generate greater resistance, reducing the airflow velocity and the impact intensity, while the large holes in the edge area generate less resistance, increasing the airflow throughput and supplementing the flow rate. This offsets the difference in air kinetic energy in different areas, allowing the airflow to flow more evenly to the entire area of ​​the filter screen 300 after passing through different guide areas 1101. On the other hand, it can reduce the flow loss of airflow in the guide plate 110. The large holes in the edge area can reduce resistance, allowing weak kinetic energy airflow to pass smoothly through the guide holes 1102, reducing eddies and stagnation, and improving airflow utilization efficiency.

[0079] It should be noted that the shape of the deflector 110 can be circular or rectangular. When the shape of the deflector 110 is rectangular, the central axis of the deflector 110 is a straight line passing through the geometric center and perpendicular to the deflector 110; for example, as... Figure 2 , Figure 3 As shown, the central axis of the guide vane 110 is PP'.

[0080] It should also be noted that, such as Figure 3 As shown, the guide hole 1102 is a circular hole. When the guide hole 1102 is a circular hole, its cross-sectional area increases with the increase of the distance between the center of the guide hole 1102 and the central axis of the guide plate 110. That is, the diameter of the guide hole 1102 increases with the increase of the distance between the center of the guide hole 1102 and the central axis of the guide plate 110. Therefore, the guide holes 1102 closer to the central axis of the guide plate 110 are small-diameter, and the guide holes 1102 farther from the central axis of the guide plate 110 are large-diameter. For example, as... Figure 2 As shown, the distance between one guide hole 1102 and the central axis of the guide plate 110 is L1, and the diameter of the guide hole 1102 is D1. The distance between the other guide hole 1102 and the central axis of the guide plate 110 is L2, and the diameter of the guide hole 1102 is D2. Since L1 < L2, then D1 < D2.

[0081] Of course, the guide hole 1102 can also be other shapes, including but not limited to polygons and ellipses; understandably, the shapes of the guide holes 1102 can be the same or different.

[0082] like Figure 3 As shown, in some embodiments, the central axis of the guide hole 1102 has a guide angle with the central axis of the guide plate 110, and the vertical distance between the center point of the guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is greater than the vertical distance between the center point of the guide hole 1102 on the windward side 1104 and the central axis of the guide plate 110; wherein, the multiple guide angles increase with the increase of the vertical distance between the center point of the guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110.

[0083] The vertical distance between the center point of the guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is greater than the vertical distance between the center point of the guide hole 1102 on the windward side 1104 and the central axis of the guide plate 110. This allows the airflow to gradually diffuse towards the edge as it passes through the guide plate 110, avoiding sudden diffusion that could generate eddies and providing a basis for uniform coverage of the filter screen 300. By varying the guide angle, the airflow is guided to diffuse towards the edge of the filter 300, achieving uniform coverage of the airflow on the surface of the filter 300. Specifically, on the one hand, by setting the central axis of the guide hole 1102, which is close to the central axis of the guide plate 110, to a small angle, and setting the central axis of the guide hole 1102, which is far from the central axis of the guide plate 110, to a large angle, the airflow in the edge area can be pushed to diffuse outwards from the filter 300 using the angle difference. This avoids the problem of insufficient airflow coverage at the edge of the filter 300 in the prior art, allowing the airflow to cover the surface of the filter 300 more evenly and comprehensively. On the other hand, it can optimize the flow field distribution on the surface of the filter 300. By using the varying angle design, the airflow at different positions can be deflected and diffused in an orderly manner according to the preset angle, forming a more stable flow field. It can flow to all areas of the filter 300 without additional energy consumption, reducing the load required for the fan 200 to overcome the resistance of the guide plate 110, thereby improving energy efficiency.

[0084] It should be noted that the guide angle is greater than 0° and less than 90°; for example, such as Figure 3 As shown, the distance between the center point of one guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is L3, and the angle between the central axis of the guide hole 1102 and the central axis of the guide plate 110 is α. The distance between the center point of the other guide hole 1102 on the leeward side 1105 and the central axis of the guide plate 110 is L4, and the angle between the central axis of the guide hole 1102 and the central axis of the guide plate 110 is β. Since L3 < L4, then α < β.

[0085] It should also be noted that the central axis of the guide hole 1102 is coplanar with the central axis of the guide plate 110.

[0086] In some embodiments, the density of the guide holes 1102 on the guide plate 110 gradually decreases in the direction from the projection point of the central axis of the guide plate 110 to the outer periphery.

[0087] Because the airflow in the central area of ​​the outlet 210 of the fan 200 is larger, the density of the guide holes 1102 on the guide plate 110 gradually decreases in the direction from the projection point of the central axis of the guide plate 110 to the outer periphery. This results in a layout where there are more guide holes 1102 in the central area of ​​the guide plate 110 and fewer guide holes 1102 in the edge area. This layout can both improve the flow distribution capacity by using more holes in the central area to disperse the concentrated airflow and avoid the flow rate attenuation caused by excessive dispersion of airflow by using fewer holes in the edge area. This offsets the airflow density difference in different areas, allowing the airflow to flow to the filter 300 with a more uniform density after passing through the guide plate 110.

[0088] In some embodiments, the cross-sectional area of ​​the flow-blocking hole 1201 is consistent with the cross-sectional area of ​​the corresponding flow-guiding hole 1102, the cross-sectional shape of the flow-blocking hole 1201 is consistent with the cross-sectional shape of the corresponding flow-guiding hole 1102, and the central axis of the flow-blocking hole 1201 is parallel to the central axis of the corresponding flow-guiding hole 1102.

[0089] By setting the cross-sectional area and shape of the baffle hole 1201 to match the corresponding cross-sectional area and shape of the guide hole 1102, when the baffle plate 120 moves relative to the guide plate 110, the change in the overlapping area of ​​the baffle hole 1201 and the guide hole 1102 can directly and linearly correspond to the change in airflow. This prevents sudden changes in flow rate due to differences in cross-sectional area and shape, thus accurately controlling the airflow in each guide region 1101 and improving the uniform distribution of airflow. By setting the baffle hole 1201 parallel to the corresponding guide hole 1102, airflow loss and turbulence between the two holes can be reduced. With the axes of the two holes parallel, the airflow can pass through the two holes in a straight line, ensuring a smooth flow path without changing the flow direction. This preserves the kinetic energy of the airflow and avoids flow direction deviation that could disrupt the uniform flow effect.

[0090] Example 5 This application embodiment also provides an air supply device 4, including a fan 200, a filter 300, and a flow equalization structure 100 as described in any embodiment of this application; the fan 200 includes an air outlet 210; the flow equalization structure 100 is disposed in the air outlet 210; the filter 300 is disposed downstream of the airflow of the flow equalization structure 100, and the filter 300 is used to filter the airflow after it has been equalized by the flow equalization structure 100.

[0091] By setting up the flow equalization structure 100, the airflow in each area is adjusted by changing the overlapping area of ​​the baffle hole 1201 and the guide hole 1102, and the airflow is guided to diffuse evenly in multiple directions. By setting the filter screen 300 downstream of the flow equalization structure 100, the airflow after equalization can act on the entire area of ​​the filter screen 300, avoiding the problem of airflow concentrating in the middle area of ​​the filter screen 300 and insufficient coverage of the edge area, thus extending the service life of the filter screen 300. At the same time, the fan 200 does not need to increase the load to overcome the additional resistance caused by airflow turbulence or filter screen 300 blockage, reducing equipment wear and extending the service life of the air supply device 4.

[0092] It should be noted that, as Figure 1 As shown, in order to ensure the filtration area and facilitate the installation of the filter screen 300 and the flow equalization structure 100, a support can be set at the air outlet 210, and the flow equalization structure 100 and the filter screen 300 can be installed on the support.

[0093] In some embodiments, the air supply device 4 includes a plurality of pressure sensors and a controller; the plurality of pressure sensors are disposed on the side of the filter 300 away from the flow equalization structure 100 and are arranged at intervals, and each flow guide region 1101 corresponds to at least one pressure sensor; the control terminal of the controller is electrically connected to the plurality of pressure sensors and drives one or more baffles 120 to move, and the controller is configured to control the movement of the baffles 120 in the flow guide region 1101 corresponding to the pressure sensor according to the detected pressure of the pressure sensor, so as to adjust the air flow rate through the flow guide region 1101.

[0094] By setting a pressure sensor corresponding to the flow guiding area 1101 on the side of the filter 300 away from the flow equalization structure 100, the air pressure of each corresponding area of ​​the filter 300 can be detected in real time, and the air pressure difference and air pressure change of each area can be captured in real time. When the air pressure in the central area of ​​the filter 300 is too high, the controller can judge the airflow distribution imbalance through the detection value of the pressure sensor, control the movement of the baffle 120 corresponding to the flow guiding area 1101 in the central area of ​​the filter 300, reduce the overlapping area of ​​the baffle hole 1201 and the flow guiding hole 1102, and reduce the airflow. At the same time, the controller controls the movement of the baffle unit corresponding to the flow guiding area 1101 in the edge area of ​​the filter 300, increases the overlapping area of ​​the baffle hole 1201 and the flow guiding hole 1102, increases the airflow, and ensures that the airflow adjustment can be targeted and effectively balance the airflow of the entire area of ​​the filter 300.

[0095] It should be noted that multiple pressure sensors can be set for the same flow guide area 1101, and the average pressure detection value of multiple pressure sensors for the same flow guide area 1101 can be used as the detection value, thereby improving the accuracy of pressure detection; alternatively, only one pressure sensor can be set for each flow guide area 1101.

[0096] It should also be noted that the filter screen 300 is provided with multiple filtration areas, which correspond one-to-one with multiple airflow guiding areas 1101. Each filtration area is provided with at least one pressure sensor. By detecting the air pressure in the filtration area, the airflow size and airflow distribution can be determined.

[0097] like Figure 1 As shown, in some embodiments, the central axis of the air outlet 210 has an inclined angle with the height direction of the fan 200, and the filter 300 is perpendicular to the height direction.

[0098] With the central axis of the air outlet 210 forming an inclined angle with the height direction of the fan 200, and the filter screen 300 being perpendicular to the height direction, the airflow can flow towards the filter screen 300 in an inclined direction. This allows the airflow to form an oblique diffusion before reaching the filter screen 300, expanding the initial coverage area of ​​the airflow on the surface of the filter screen 300 and providing a basis for the uniform flow of the subsequent flow equalization structure 100. In addition, the vertical layout of the filter screen 300 allows for more flexible adaptation to the installation space and facilitates its cooperation with other components such as the heat exchanger 5 within the installation space.

[0099] It should be noted that, as Figure 1 As shown, the height direction of the fan 200 is parallel to the Z direction.

[0100] Example 6 like Figure 8 As shown, this application embodiment also provides an air purification device, including a housing 1, a heat exchanger 5, and an air supply device 4 as described in any embodiment of this application; an air inlet 2 and an air outlet 3 are respectively provided on opposite sides of the housing 1; the air supply device 4 is disposed inside the housing 1, and the air inlet of the air supply device 4 is connected to the air inlet 2; the heat exchanger 5 is disposed inside the housing 1 and located downstream of the airflow of the air supply device 4; wherein, the inlet of the heat exchanger 5 is connected to the air outlet 210 of the air supply device 4, and the outlet of the heat exchanger 5 is connected to the air outlet 3, so that the airflow flows through the air supply device 4 and the heat exchanger 5 in sequence.

[0101] The air supply device 4 can evenly distribute the intake airflow, so that the uniform and stable airflow can fully cover the surface of the heat exchanger 5, avoid local heat exchange idleness or temperature fluctuation, significantly improve heat exchange efficiency, and at the same time reduce the impact and wear of the airflow on the heat exchanger 5, and extend the service life of the heat exchanger 5.

[0102] It should be noted that heat exchanger 5 is used for airflow dehumidification or temperature regulation, and plays a role in regulating air quality.

[0103] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0104] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0105] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A flow-equalizing structure, characterized in that, When applied to an air supply device, the flow equalization structure includes: A guide plate is disposed on the air outlet of the air supply device. The guide plate is provided with multiple spaced-apart guide areas, and each guide area is provided with multiple guide holes penetrating the thickness direction of the guide plate. Multiple baffles are provided, each corresponding to one of the multiple flow guiding areas. The baffles and the corresponding flow guiding areas are stacked in layers, and the baffles are provided with multiple baffle holes that correspond one-to-one with the multiple flow guiding holes. Each of the baffles is configured to move independently relative to the guide plate to change the overlapping area of ​​the baffle hole and the corresponding guide hole, thereby adjusting the airflow through the corresponding guide region.

2. The current sharing structure of claim 1, wherein, Multiple flow guiding regions are arranged in a planar array on the flow guiding plate; wherein the baffle is located downstream of the airflow of the flow guiding plate and is configured to move in a plane parallel to the flow guiding plate.

3. The current sharing structure of claim 2, wherein, The guide plate has a windward side and a leeward side arranged opposite to each other in the thickness direction; the cross-sectional area of ​​the guide hole increases with the increase of the vertical distance between the center point of the guide hole on the leeward side and the central axis of the guide plate.

4. The current sharing structure of claim 3, wherein, The central axis of the guide hole has a guiding angle with the central axis of the guide plate, and the vertical distance between the center point of the guide hole on the leeward side and the central axis of the guide plate is greater than the vertical distance between the center point of the guide hole on the windward side and the central axis of the guide plate; wherein, the multiple guiding angles increase as the vertical distance between the center point of the guide hole on the leeward side and the central axis of the guide plate increases.

5. The flow equalization structure according to claim 4, characterized in that, Along the direction from the projection point of the central axis of the guide plate to the outer periphery, the density of the guide holes on the guide plate gradually decreases.

6. The flow-equalizing structure according to any one of claims 1-5, characterized in that, The cross-sectional area of ​​the flow-blocking hole is the same as the cross-sectional area of ​​the corresponding flow-guiding hole, the shape of the cross-section of the flow-blocking hole is the same as the shape of the cross-section of the corresponding flow-guiding hole, and the central axis of the flow-blocking hole is parallel to the central axis of the corresponding flow-guiding hole.

7. An air supply device, characterized in that, include: Fan, including air outlet; The flow equalization structure as described in any one of claims 1-6 is disposed within the air outlet; A filter screen is disposed downstream of the airflow in the flow equalization structure, and the filter screen is used to filter the airflow after it has been equalized by the flow equalization structure.

8. The air supply device according to claim 7, wherein include: Multiple pressure sensors are disposed on the side of the filter screen away from the flow equalization structure and arranged at intervals, with each flow guiding area corresponding to at least one pressure sensor; The controller has a control terminal that is electrically connected to multiple pressure sensors and drives one or more baffles to move. The controller is configured to control the movement of the baffles in the flow guiding area corresponding to the pressure sensor according to the detected pressure of the pressure sensor, so as to adjust the airflow through the flow guiding area.

9. The air supply device according to claim 7, wherein The central axis of the air outlet is inclined at an angle to the height direction of the fan, and the filter screen is perpendicular to the height direction.

10. An air cleaning apparatus, characterized by, include: The housing has an air inlet and an air outlet on opposite sides. The air supply device as described in any one of claims 7-9 is disposed inside the housing, and the air inlet of the air supply device is connected to the air outlet. The heat exchanger is disposed within the casing and located downstream of the airflow from the air supply device; wherein, The inlet of the heat exchanger is connected to the outlet of the air supply device, and the outlet of the heat exchanger is connected to the air supply outlet, so that the airflow flows through the air supply device and the heat exchanger in sequence.

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