Flow guide structure, air supply device and air conditioning purification equipment

Abstract

The application relates to a flow guide structure, an air supply device and air conditioning purification equipment, and relates to the fan technology field. The flow guide structure comprises a rotating shaft and a flow guide component; the rotating shaft is arranged in an air outlet of the air supply device; the flow guide component comprises two flow guide plates which are rotatably arranged on the rotating shaft and are respectively located on the two sides of the central axis of the air outlet; a plurality of flow guide holes penetrating through the thickness direction of the flow guide plate are arranged on the flow guide plate; the flow guide plate comprises a windward side and a leeward side which are oppositely arranged in the thickness direction of the flow guide plate; a shunt channel is formed between the windward side and the inner wall of the air outlet; the shunt channel is configured to guide the airflow flowing therethrough to the area close to the inner wall of the air outlet; wherein each flow guide plate is configured to independently rotate relative to the rotating shaft to change the included angle between the flow guide plate and the central axis of the air outlet, so as to adjust the airflow volume flowing through the flow guide hole and the shunt channel. The technical scheme disclosed by the application can make the airflow 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 guiding structure, an air supply device, and an air conditioning 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 guiding structure, an air supply device, and an air conditioning purification equipment, which enables airflow to be evenly distributed on the filter surface.

[0004] In a first aspect, this application provides a flow guiding structure applied to an air supply device, the flow guiding structure comprising: A rotating shaft is disposed inside the air outlet of the air supply device; The airflow guiding assembly includes two airflow guiding plates rotatably mounted on the rotating shaft and located on both sides of the central axis of the air outlet. The airflow guiding plates are provided with a plurality of airflow guiding holes penetrating the thickness direction of the airflow guiding plates. The airflow guiding plates include a windward side and a leeward side arranged opposite to each other in the thickness direction of the airflow guiding plates. A flow diversion channel is formed between the windward side and the inner wall of the air outlet. The flow diversion channel is configured to guide the flowing airflow to a region close to the inner wall of the air outlet. Each of the guide vanes is configured to rotate independently relative to the rotating shaft to change the angle between the guide vane and the central axis of the air outlet, thereby adjusting the airflow through the guide hole and the diversion channel.

[0005] In some embodiments, the rotating shaft is perpendicular to the central axis of the air outlet, and the distance between the two guide plates gradually increases along the air outlet direction.

[0006] In some embodiments, the density of the guide holes on the guide plate increases with the increase of the vertical distance from the central axis of the air outlet.

[0007] In some embodiments, the central axis of the guide hole has a guide angle with the thickness direction of the guide plate; wherein, the vertical distance between the center point of the guide hole on the windward side and the central axis of the air outlet is less than the vertical distance between the center point of the guide hole on the leeward side and the central axis of the air outlet.

[0008] In some embodiments, the flow guiding structure further includes a drive motor connected to the flow guiding plate and used to drive the flow guiding plate to rotate around the rotating shaft.

[0009] Secondly, this application provides an air supply device, comprising: Fan, including air outlet; The airflow guiding structure described in the first aspect is disposed at the air outlet; A filter screen is disposed downstream of the airflow in the flow guiding structure, and the filter screen is used to filter the airflow after it has been guided by the flow guiding structure.

[0010] In some embodiments, including: Multiple pressure sensors are disposed on the filter screen to detect the pressure generated by the airflow passing through the guide hole and the diversion channel, respectively; The controller is electrically connected to multiple pressure sensors, and the controller is configured to control the rotation of the guide plate according to the pressure detected by the pressure sensors, so as to adjust the air flow rate through the guide hole and the diversion channel.

[0011] In some embodiments, the pressure sensor is disposed on the side of the filter screen away from the flow guiding structure; wherein, at least one pressure sensor is arranged in the projection area of ​​the flow guiding assembly and the flow diversion channel on the filter screen.

[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, comprising: 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 airflow guiding structure provided in this application embodiment, by arranging two guide plates on both sides of the central axis of the air outlet, and forming a diversion channel with the windward side and the inner wall of the air outlet, can guide part of the airflow to the area near the inner wall of the air outlet. The larger the angle between the guide plate and the central axis of the air outlet, the greater the extent to which the airflow is guided to the inner wall of the air outlet, and consequently the greater the extent to which the airflow is guided to the edge of the filter. Therefore, by adjusting the angle between the guide plate and the central axis of the air outlet, the airflow rate guided to the edge area of ​​the filter can be controlled. At the same time, by utilizing the dispersion effect of multiple guide holes on the guide plate on the airflow, the excessive concentration of airflow in the central area of ​​the filter can be effectively avoided, achieving uniform coverage of the airflow on the filter surface, preventing premature clogging of the central area of ​​the filter due to excessive load, extending the service life of the filter, ensuring stable purification efficiency, and reducing the operating load and energy consumption of the fan. By independently controlling the angle between the two guide vanes and the central axis of the air outlet, the airflow distribution ratio through the guide holes and the splitting channel can be adjusted in real time. Specifically, when the angle between the guide vane and the central axis of the air outlet increases, the shielding of the central airflow by the guide vane is enhanced, causing a larger proportion of the airflow to be guided to the edge area of ​​the filter. Thus, the airflow distribution can be dynamically adjusted and optimized by flexibly adjusting the airflow through the guide holes and the splitting channel. 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 This is a schematic diagram of the flow guiding structure provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the air purification device provided in the embodiments 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 guiding structure; 110. Flow guide plate; 1101. Windward side; 1102. Flow guide hole; 1103. Leeward side; 120. Flow diversion channel; 130. Rotating shaft; 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 Figure 1 , Figure 2 As shown, this application embodiment provides a flow guiding structure 100 applied to an air supply device 4. The flow guiding structure 100 includes a rotating shaft 130 and a flow guiding assembly. The rotating shaft 130 is disposed within the air outlet 210 of the air supply device 4. The flow guiding assembly includes two flow guiding plates 110 rotatably disposed on the rotating shaft 130 and respectively located on both sides of the central axis of the air outlet 210. Multiple flow guiding holes 1102 penetrating the thickness direction of the flow guiding plate 110 are provided on the flow guiding plate 110. The flow guiding plate 110 includes multiple flow guiding holes 1102 extending through the thickness direction of the flow guiding plate 110. The windward side 1101 and the leeward side 1103 are arranged opposite each other in the thickness direction. A diversion channel 120 is formed between the windward side 1101 and the inner wall of the air outlet 210. The diversion channel 120 is configured to guide the airflow to a region close to the inner wall of the air outlet 210. Each guide plate 110 is configured to rotate independently relative to the rotating shaft 130 to change the angle between the guide plate 110 and the central axis of the air outlet 210, thereby adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0026] As can be seen from the above, by arranging the two guide plates 110 on both sides of the central axis of the air outlet 210, and the flow channel 120 formed by the windward side 1101 and the inner wall of the air outlet 210, part of the airflow can be guided to flow to the area near the inner wall of the air outlet 210. The larger the angle between the guide plate 110 and the central axis of the air outlet 210, the greater the amplitude of the airflow guided to the inner wall of the air outlet 210, and thus the greater the amplitude of the airflow guided to the edge of the filter screen 300. Therefore, by adjusting the angle between the guide plate 110 and the central axis of the air outlet 210, the airflow rate guided to the edge area of ​​the filter screen 300 can be controlled. At the same time, by utilizing the dispersion effect of the multiple guide holes 1102 on the guide plate 110 on the airflow, the excessive concentration of airflow in the central area of ​​the filter screen 300 can be effectively avoided, so as to achieve uniform coverage of the airflow on the surface of the filter screen 300, prevent the central area of ​​the filter screen 300 from being blocked prematurely due to excessive load, extend the service life of the filter screen 300, ensure stable purification efficiency, and reduce the operating load and energy consumption of the fan 200. By independently controlling the angle between the two guide plates 110 and the central axis of the air outlet 210, the airflow distribution ratio through the guide hole 1102 and the diversion channel 120 can be adjusted in real time. Specifically, when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the shielding of the central airflow by the guide plate 110 is enhanced, causing a larger proportion of the airflow to be guided to the edge area of ​​the filter 300. Thus, the airflow distribution can be dynamically adjusted and optimized by flexibly adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0027] It should be noted that, as Figure 1 , Figure 2 As shown, the central axis of the air outlet 210 is PP'. The diameters of the multiple guide holes 1102 can be the same or different, and this application does not impose specific restrictions. In addition, the angles between the two guide plates 110 and the central axis of the air outlet 210 can be the same or different, and the angle between the guide plate 110 and the central axis of the air outlet 210 is less than 90° and greater than 0°.

[0028] It should also be noted that when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the airflow can be directed to the diversion channel 120 to a greater extent, thereby reducing the airflow through the guide hole 1102 and increasing the airflow through the diversion channel 120. Specifically, the two diversion channels 120 are the first diversion channel and the second diversion channel, and the two guide plates 110 are the first guide plate and the second guide plate, respectively. The first guide plate is used to form the first diversion channel, and the second guide plate is used to form the second diversion channel. When the airflow in the first diversion channel is relatively small... When the first guide plate rotates, increasing the angle between the first guide plate and the central axis of the air outlet 210, the first guide plate guides the airflow to the first diversion channel to a greater extent, increasing the airflow through the first diversion channel and decreasing the airflow through the guide hole 1102. Understandably, when the airflow of the second diversion channel is small, or when the airflow of both the first and second diversion channels is small, the above adjustments can be made to achieve dynamic adjustment of airflow distribution, guiding the airflow to different areas of the filter 300 and achieving uniform coverage of the airflow on the surface of the filter 300.

[0029] Example 2 like Figure 1 , Figure 2 As shown, this application embodiment provides a flow guiding structure 100 applied to an air supply device 4. The flow guiding structure 100 includes a rotating shaft 130 and a flow guiding assembly. The rotating shaft 130 is disposed within the air outlet 210 of the air supply device 4. The flow guiding assembly includes two flow guiding plates 110 rotatably disposed on the rotating shaft 130 and respectively located on both sides of the central axis of the air outlet 210. Multiple flow guiding holes 1102 penetrating the thickness direction of the flow guiding plate 110 are provided on the flow guiding plate 110. The flow guiding plate 110 includes multiple flow guiding holes 1102 extending through the thickness direction of the flow guiding plate 110. The windward side 1101 and the leeward side 1103 are arranged opposite each other in the thickness direction. A diversion channel 120 is formed between the windward side 1101 and the inner wall of the air outlet 210. The diversion channel 120 is configured to guide the airflow to a region close to the inner wall of the air outlet 210. Each guide plate 110 is configured to rotate independently relative to the rotating shaft 130 to change the angle between the guide plate 110 and the central axis of the air outlet 210, thereby adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0030] As can be seen from the above, by arranging the two guide plates 110 on both sides of the central axis of the air outlet 210, and the flow channel 120 formed by the windward side 1101 and the inner wall of the air outlet 210, part of the airflow can be guided to flow to the area near the inner wall of the air outlet 210. The larger the angle between the guide plate 110 and the central axis of the air outlet 210, the greater the amplitude of the airflow guided to the inner wall of the air outlet 210, and thus the greater the amplitude of the airflow guided to the edge of the filter screen 300. Therefore, by adjusting the angle between the guide plate 110 and the central axis of the air outlet 210, the airflow rate guided to the edge area of ​​the filter screen 300 can be controlled. At the same time, by utilizing the dispersion effect of the multiple guide holes 1102 on the guide plate 110 on the airflow, the excessive concentration of airflow in the central area of ​​the filter screen 300 can be effectively avoided, so as to achieve uniform coverage of the airflow on the surface of the filter screen 300, prevent the central area of ​​the filter screen 300 from being blocked prematurely due to excessive load, extend the service life of the filter screen 300, ensure stable purification efficiency, and reduce the operating load and energy consumption of the fan 200. By independently controlling the angle between the two guide plates 110 and the central axis of the air outlet 210, the airflow distribution ratio through the guide hole 1102 and the diversion channel 120 can be adjusted in real time. Specifically, when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the shielding of the central airflow by the guide plate 110 is enhanced, causing a larger proportion of the airflow to be guided to the edge area of ​​the filter 300. Thus, the airflow distribution can be dynamically adjusted and optimized by flexibly adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0031] It should be noted that, as Figure 1 , Figure 2 As shown, the central axis of the air outlet 210 is PP'. The diameters of the multiple guide holes 1102 can be the same or different, and this application does not impose specific restrictions. In addition, the angles between the two guide plates 110 and the central axis of the air outlet 210 can be the same or different, and the angle between the guide plate 110 and the central axis of the air outlet 210 is less than 90° and greater than 0°.

[0032] It should also be noted that when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the airflow can be directed to the diversion channel 120 to a greater extent, thereby reducing the airflow through the guide hole 1102 and increasing the airflow through the diversion channel 120. Specifically, the two diversion channels 120 are the first diversion channel and the second diversion channel, and the two guide plates 110 are the first guide plate and the second guide plate, respectively. The first guide plate is used to form the first diversion channel, and the second guide plate is used to form the second diversion channel. When the airflow in the first diversion channel is relatively small... When the first guide plate rotates, increasing the angle between the first guide plate and the central axis of the air outlet 210, the first guide plate guides the airflow to the first diversion channel to a greater extent, increasing the airflow through the first diversion channel and decreasing the airflow through the guide hole 1102. Understandably, when the airflow of the second diversion channel is small, or when the airflow of both the first and second diversion channels is small, the above adjustments can be made to achieve dynamic adjustment of airflow distribution, guiding the airflow to different areas of the filter 300 and achieving uniform coverage of the airflow on the surface of the filter 300.

[0033] like Figure 2 As shown, in some embodiments, the rotating shaft 130 is perpendicular to the central axis of the air outlet 210, and the distance between the two guide plates 110 gradually increases along the air outlet 210.

[0034] By setting the rotating shaft 130 perpendicular to the central axis of the air outlet 210, the airflow direction of the cross-section of the air outlet 210 can be better matched, ensuring the diversion and guidance effect of the guide plate 110 on the airflow. By setting the distance between the two guide plates 110 to gradually increase along the air outlet direction, the space in the middle area of ​​the air outlet 210 can be gradually expanded with the airflow, reducing the congestion and eddies in the middle area of ​​the air outlet 210. It can also guide and divert the airflow in the middle area of ​​the air outlet 210 into the diversion channel 120, optimizing the uniform distribution of airflow in the cross-section of the air outlet 210. This provides a structural basis for achieving uniform airflow coverage across the entire area on the filter 300, while reducing the flow resistance between the guide plates 110 to reduce energy loss.

[0035] It should be noted that, as Figure 2 As shown, the distance between the two guide plates 110 is L, and L gradually increases with the air outlet 210. Understandably, the air outlet 210 is parallel to the central axis of the air outlet 210 and is the direction in which the airflow flows from the guide assembly to the filter 300.

[0036] Example 3 like Figure 1 , Figure 2As shown, this application embodiment provides a flow guiding structure 100 applied to an air supply device 4. The flow guiding structure 100 includes a rotating shaft 130 and a flow guiding assembly. The rotating shaft 130 is disposed within the air outlet 210 of the air supply device 4. The flow guiding assembly includes two flow guiding plates 110 rotatably disposed on the rotating shaft 130 and respectively located on both sides of the central axis of the air outlet 210. Multiple flow guiding holes 1102 penetrating the thickness direction of the flow guiding plate 110 are provided on the flow guiding plate 110. The flow guiding plate 110 includes multiple flow guiding holes 1102 extending through the thickness direction of the flow guiding plate 110. The windward side 1101 and the leeward side 1103 are arranged opposite each other in the thickness direction. A diversion channel 120 is formed between the windward side 1101 and the inner wall of the air outlet 210. The diversion channel 120 is configured to guide the airflow to a region close to the inner wall of the air outlet 210. Each guide plate 110 is configured to rotate independently relative to the rotating shaft 130 to change the angle between the guide plate 110 and the central axis of the air outlet 210, thereby adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0037] As can be seen from the above, by arranging the two guide plates 110 on both sides of the central axis of the air outlet 210, and the flow channel 120 formed by the windward side 1101 and the inner wall of the air outlet 210, part of the airflow can be guided to flow to the area near the inner wall of the air outlet 210. The larger the angle between the guide plate 110 and the central axis of the air outlet 210, the greater the amplitude of the airflow guided to the inner wall of the air outlet 210, and thus the greater the amplitude of the airflow guided to the edge of the filter screen 300. Therefore, by adjusting the angle between the guide plate 110 and the central axis of the air outlet 210, the airflow rate guided to the edge area of ​​the filter screen 300 can be controlled. At the same time, by utilizing the dispersion effect of the multiple guide holes 1102 on the guide plate 110 on the airflow, the excessive concentration of airflow in the central area of ​​the filter screen 300 can be effectively avoided, so as to achieve uniform coverage of the airflow on the surface of the filter screen 300, prevent the central area of ​​the filter screen 300 from being blocked prematurely due to excessive load, extend the service life of the filter screen 300, ensure stable purification efficiency, and reduce the operating load and energy consumption of the fan 200. By independently controlling the angle between the two guide plates 110 and the central axis of the air outlet 210, the airflow distribution ratio through the guide hole 1102 and the diversion channel 120 can be adjusted in real time. Specifically, when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the shielding of the central airflow by the guide plate 110 is enhanced, causing a larger proportion of the airflow to be guided to the edge area of ​​the filter 300. Thus, the airflow distribution can be dynamically adjusted and optimized by flexibly adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0038] It should be noted that, as Figure 1 , Figure 2As shown, the central axis of the air outlet 210 is PP'. The diameters of the multiple guide holes 1102 can be the same or different, and this application does not impose specific restrictions. In addition, the angles between the two guide plates 110 and the central axis of the air outlet 210 can be the same or different, and the angle between the guide plate 110 and the central axis of the air outlet 210 is less than 90° and greater than 0°.

[0039] It should also be noted that when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the airflow can be directed to the diversion channel 120 to a greater extent, thereby reducing the airflow through the guide hole 1102 and increasing the airflow through the diversion channel 120. Specifically, the two diversion channels 120 are the first diversion channel and the second diversion channel, and the two guide plates 110 are the first guide plate and the second guide plate, respectively. The first guide plate is used to form the first diversion channel, and the second guide plate is used to form the second diversion channel. When the airflow in the first diversion channel is relatively small... When the first guide plate rotates, increasing the angle between the first guide plate and the central axis of the air outlet 210, the first guide plate guides the airflow to the first diversion channel to a greater extent, increasing the airflow through the first diversion channel and decreasing the airflow through the guide hole 1102. Understandably, when the airflow of the second diversion channel is small, or when the airflow of both the first and second diversion channels is small, the above adjustments can be made to achieve dynamic adjustment of airflow distribution, guiding the airflow to different areas of the filter 300 and achieving uniform coverage of the airflow on the surface of the filter 300.

[0040] like Figure 2 As shown, in some embodiments, the rotating shaft 130 is perpendicular to the central axis of the air outlet 210, and the distance between the two guide plates 110 gradually increases along the air outlet 210.

[0041] By setting the rotating shaft 130 perpendicular to the central axis of the air outlet 210, the airflow direction of the cross-section of the air outlet 210 can be better matched, ensuring the diversion and guidance effect of the guide plate 110 on the airflow. By setting the distance between the two guide plates 110 to gradually increase along the air outlet direction, the space in the middle area of ​​the air outlet 210 can be gradually expanded with the airflow, reducing the congestion and eddies in the middle area of ​​the air outlet 210. It can also guide and divert the airflow in the middle area of ​​the air outlet 210 into the diversion channel 120, optimizing the uniform distribution of airflow in the cross-section of the air outlet 210. This provides a structural basis for achieving uniform airflow coverage across the entire area on the filter 300, while reducing the flow resistance between the guide plates 110 to reduce energy loss.

[0042] It should be noted that, as Figure 2As shown, the distance between the two guide plates 110 is L, and L gradually increases with the air outlet 210. Understandably, the air outlet 210 is parallel to the central axis of the air outlet 210 and is the direction in which the airflow flows from the guide assembly to the filter 300.

[0043] In some embodiments, the density of the guide holes 1102 on the guide plate 110 increases with the increase of the vertical distance from the central axis of the air outlet 210.

[0044] The density of the guide holes 1102 on the guide plate 110 increases with the increase of the vertical distance from the central axis of the air outlet 210, forming a layout with low near-axial hole density and high far-axial hole density. The lower hole density near the axis can increase the airflow penetration resistance and suppress excessive airflow concentration, while the higher hole density at the far axis provides a low-resistance channel for airflow, guiding more airflow to cover the edge of the filter 300, thereby further optimizing the airflow distribution in each area, improving the airflow control accuracy, and adapting to the different needs of airflow distribution, avoiding insufficient airflow control accuracy caused by the uniform density of the guide holes 1102.

[0045] Example 4 like Figure 1 , Figure 2 As shown, this application embodiment provides a flow guiding structure 100 applied to an air supply device 4. The flow guiding structure 100 includes a rotating shaft 130 and a flow guiding assembly. The rotating shaft 130 is disposed within the air outlet 210 of the air supply device 4. The flow guiding assembly includes two flow guiding plates 110 rotatably disposed on the rotating shaft 130 and respectively located on both sides of the central axis of the air outlet 210. Multiple flow guiding holes 1102 penetrating the thickness direction of the flow guiding plate 110 are provided on the flow guiding plate 110. The flow guiding plate 110 includes multiple flow guiding holes 1102 extending through the thickness direction of the flow guiding plate 110. The windward side 1101 and the leeward side 1103 are arranged opposite each other in the thickness direction. A diversion channel 120 is formed between the windward side 1101 and the inner wall of the air outlet 210. The diversion channel 120 is configured to guide the airflow to a region close to the inner wall of the air outlet 210. Each guide plate 110 is configured to rotate independently relative to the rotating shaft 130 to change the angle between the guide plate 110 and the central axis of the air outlet 210, thereby adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0046] As can be seen from the above, by arranging the two guide plates 110 on both sides of the central axis of the air outlet 210, and the flow channel 120 formed by the windward side 1101 and the inner wall of the air outlet 210, part of the airflow can be guided to flow to the area near the inner wall of the air outlet 210. The larger the angle between the guide plate 110 and the central axis of the air outlet 210, the greater the amplitude of the airflow guided to the inner wall of the air outlet 210, and thus the greater the amplitude of the airflow guided to the edge of the filter screen 300. Therefore, by adjusting the angle between the guide plate 110 and the central axis of the air outlet 210, the airflow rate guided to the edge area of ​​the filter screen 300 can be controlled. At the same time, by utilizing the dispersion effect of the multiple guide holes 1102 on the guide plate 110 on the airflow, the excessive concentration of airflow in the central area of ​​the filter screen 300 can be effectively avoided, so as to achieve uniform coverage of the airflow on the surface of the filter screen 300, prevent the central area of ​​the filter screen 300 from being blocked prematurely due to excessive load, extend the service life of the filter screen 300, ensure stable purification efficiency, and reduce the operating load and energy consumption of the fan 200. By independently controlling the angle between the two guide plates 110 and the central axis of the air outlet 210, the airflow distribution ratio through the guide hole 1102 and the diversion channel 120 can be adjusted in real time. Specifically, when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the shielding of the central airflow by the guide plate 110 is enhanced, causing a larger proportion of the airflow to be guided to the edge area of ​​the filter 300. Thus, the airflow distribution can be dynamically adjusted and optimized by flexibly adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0047] It should be noted that, as Figure 1 , Figure 2 As shown, the central axis of the air outlet 210 is PP'. The diameters of the multiple guide holes 1102 can be the same or different, and this application does not impose specific restrictions. In addition, the angles between the two guide plates 110 and the central axis of the air outlet 210 can be the same or different, and the angle between the guide plate 110 and the central axis of the air outlet 210 is less than 90° and greater than 0°.

[0048] It should also be noted that when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the airflow can be directed to the diversion channel 120 to a greater extent, thereby reducing the airflow through the guide hole 1102 and increasing the airflow through the diversion channel 120. Specifically, the two diversion channels 120 are the first diversion channel and the second diversion channel, and the two guide plates 110 are the first guide plate and the second guide plate, respectively. The first guide plate is used to form the first diversion channel, and the second guide plate is used to form the second diversion channel. When the airflow in the first diversion channel is relatively small... When the first guide plate rotates, increasing the angle between the first guide plate and the central axis of the air outlet 210, the first guide plate guides the airflow to the first diversion channel to a greater extent, increasing the airflow through the first diversion channel and decreasing the airflow through the guide hole 1102. Understandably, when the airflow of the second diversion channel is small, or when the airflow of both the first and second diversion channels is small, the above adjustments can be made to achieve dynamic adjustment of airflow distribution, guiding the airflow to different areas of the filter 300 and achieving uniform coverage of the airflow on the surface of the filter 300.

[0049] like Figure 2 As shown, in some embodiments, the rotating shaft 130 is perpendicular to the central axis of the air outlet 210, and the distance between the two guide plates 110 gradually increases along the air outlet 210.

[0050] By setting the rotating shaft 130 perpendicular to the central axis of the air outlet 210, the airflow direction of the cross-section of the air outlet 210 can be better matched, ensuring the diversion and guidance effect of the guide plate 110 on the airflow. By setting the distance between the two guide plates 110 to gradually increase along the air outlet direction, the space in the middle area of ​​the air outlet 210 can be gradually expanded with the airflow, reducing the congestion and eddies in the middle area of ​​the air outlet 210. It can also guide and divert the airflow in the middle area of ​​the air outlet 210 into the diversion channel 120, optimizing the uniform distribution of airflow in the cross-section of the air outlet 210. This provides a structural basis for achieving uniform airflow coverage across the entire area on the filter 300, while reducing the flow resistance between the guide plates 110 to reduce energy loss.

[0051] It should be noted that, as Figure 2 As shown, the distance between the two guide plates 110 is L, and L gradually increases with the air outlet 210. Understandably, the air outlet 210 is parallel to the central axis of the air outlet 210 and is the direction in which the airflow flows from the guide assembly to the filter 300.

[0052] In some embodiments, the density of the guide holes 1102 on the guide plate 110 increases with the increase of the vertical distance from the central axis of the air outlet 210.

[0053] The density of the guide holes 1102 on the guide plate 110 increases with the increase of the vertical distance from the central axis of the air outlet 210, forming a layout with low near-axial hole density and high far-axial hole density. The lower hole density near the axis can increase the airflow penetration resistance and suppress excessive airflow concentration, while the higher hole density at the far axis provides a low-resistance channel for airflow, guiding more airflow to cover the edge of the filter 300, thereby further optimizing the airflow distribution in each area, improving the airflow control accuracy, and adapting to the different needs of airflow distribution, avoiding insufficient airflow control accuracy caused by the uniform density of the guide holes 1102.

[0054] like Figure 2 As shown, in some embodiments, there is a flow guiding angle between the central axis of the flow guide hole 1102 and the thickness direction of the flow guide plate 110; wherein, the vertical distance between the center point of the flow guide hole 1102 on the windward side 1101 and the central axis of the air outlet 210 is less than the vertical distance between the center point of the flow guide hole 1102 on the leeward side 1103 and the central axis of the air outlet 210.

[0055] By using the guide angle and the arrangement of the guide hole 1102 near the axis on the windward side 1101 and far from the axis on the leeward side 1103, the airflow can be guided within the guide hole 1102 from the opening on the windward side 1101 near the central axis to the opening on the leeward side 1103 far from the central axis. This allows the airflow to diffuse to both sides of the air outlet 210, improving the airflow diversion effect in the middle area of ​​the air outlet 210 and allowing the airflow to supplement the areas on both sides, so that the filter 300 can achieve uniform airflow coverage across the entire area. At the same time, the directional airflow can merge with the airflow guided by the diversion channel 120, avoiding mutual interference between airflows from different paths and further optimizing the uniformity of airflow distribution.

[0056] It should be noted that, as Figure 2 As shown, the thickness direction of the guide plate 110 is parallel to the Z' direction; the angle between the guide hole 1102 and the thickness direction of the guide plate 110 is α, the vertical distance between the center point of the guide hole 1102 on the windward side 1101 and the central axis of the air outlet 210 is L2, and the vertical distance between the center point of the guide hole 1102 on the leeward side 1103 and the central axis of the air outlet 210 is L1, where L2 < L1.

[0057] It should also be noted that, such as Figure 2 As shown, the angle between the multiple guide holes 1102 and the thickness direction of the guide plate 110 can be the same, or it can increase as the distance between the guide holes 1102 and the central axis of the air outlet 210 increases.

[0058] Example 5 like Figure 1 , Figure 2As shown, this application embodiment provides a flow guiding structure 100 applied to an air supply device 4. The flow guiding structure 100 includes a rotating shaft 130 and a flow guiding assembly. The rotating shaft 130 is disposed within the air outlet 210 of the air supply device 4. The flow guiding assembly includes two flow guiding plates 110 rotatably disposed on the rotating shaft 130 and respectively located on both sides of the central axis of the air outlet 210. Multiple flow guiding holes 1102 penetrating the thickness direction of the flow guiding plate 110 are provided on the flow guiding plate 110. The flow guiding plate 110 includes multiple flow guiding holes 1102 extending through the thickness direction of the flow guiding plate 110. The windward side 1101 and the leeward side 1103 are arranged opposite each other in the thickness direction. A diversion channel 120 is formed between the windward side 1101 and the inner wall of the air outlet 210. The diversion channel 120 is configured to guide the airflow to a region close to the inner wall of the air outlet 210. Each guide plate 110 is configured to rotate independently relative to the rotating shaft 130 to change the angle between the guide plate 110 and the central axis of the air outlet 210, thereby adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0059] As can be seen from the above, by arranging the two guide plates 110 on both sides of the central axis of the air outlet 210, and the flow channel 120 formed by the windward side 1101 and the inner wall of the air outlet 210, part of the airflow can be guided to flow to the area near the inner wall of the air outlet 210. The larger the angle between the guide plate 110 and the central axis of the air outlet 210, the greater the amplitude of the airflow guided to the inner wall of the air outlet 210, and thus the greater the amplitude of the airflow guided to the edge of the filter screen 300. Therefore, by adjusting the angle between the guide plate 110 and the central axis of the air outlet 210, the airflow rate guided to the edge area of ​​the filter screen 300 can be controlled. At the same time, by utilizing the dispersion effect of the multiple guide holes 1102 on the guide plate 110 on the airflow, the excessive concentration of airflow in the central area of ​​the filter screen 300 can be effectively avoided, so as to achieve uniform coverage of the airflow on the surface of the filter screen 300, prevent the central area of ​​the filter screen 300 from being blocked prematurely due to excessive load, extend the service life of the filter screen 300, ensure stable purification efficiency, and reduce the operating load and energy consumption of the fan 200. By independently controlling the angle between the two guide plates 110 and the central axis of the air outlet 210, the airflow distribution ratio through the guide hole 1102 and the diversion channel 120 can be adjusted in real time. Specifically, when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the shielding of the central airflow by the guide plate 110 is enhanced, causing a larger proportion of the airflow to be guided to the edge area of ​​the filter 300. Thus, the airflow distribution can be dynamically adjusted and optimized by flexibly adjusting the airflow through the guide hole 1102 and the diversion channel 120.

[0060] It should be noted that, as Figure 1 , Figure 2As shown, the central axis of the air outlet 210 is PP'. The diameters of the multiple guide holes 1102 can be the same or different, and this application does not impose specific restrictions. In addition, the angles between the two guide plates 110 and the central axis of the air outlet 210 can be the same or different, and the angle between the guide plate 110 and the central axis of the air outlet 210 is less than 90° and greater than 0°.

[0061] It should also be noted that when the angle between the guide plate 110 and the central axis of the air outlet 210 increases, the airflow can be directed to the diversion channel 120 to a greater extent, thereby reducing the airflow through the guide hole 1102 and increasing the airflow through the diversion channel 120. Specifically, the two diversion channels 120 are the first diversion channel and the second diversion channel, and the two guide plates 110 are the first guide plate and the second guide plate, respectively. The first guide plate is used to form the first diversion channel, and the second guide plate is used to form the second diversion channel. When the airflow in the first diversion channel is relatively small... When the first guide plate rotates, increasing the angle between the first guide plate and the central axis of the air outlet 210, the first guide plate guides the airflow to the first diversion channel to a greater extent, increasing the airflow through the first diversion channel and decreasing the airflow through the guide hole 1102. Understandably, when the airflow of the second diversion channel is small, or when the airflow of both the first and second diversion channels is small, the above adjustments can be made to achieve dynamic adjustment of airflow distribution, guiding the airflow to different areas of the filter 300 and achieving uniform coverage of the airflow on the surface of the filter 300.

[0062] like Figure 2 As shown, in some embodiments, the rotating shaft 130 is perpendicular to the central axis of the air outlet 210, and the distance between the two guide plates 110 gradually increases along the air outlet 210.

[0063] By setting the rotating shaft 130 perpendicular to the central axis of the air outlet 210, the airflow direction of the cross-section of the air outlet 210 can be better matched, ensuring the diversion and guidance effect of the guide plate 110 on the airflow. By setting the distance between the two guide plates 110 to gradually increase along the air outlet direction, the space in the middle area of ​​the air outlet 210 can be gradually expanded with the airflow, reducing the congestion and eddies in the middle area of ​​the air outlet 210. It can also guide and divert the airflow in the middle area of ​​the air outlet 210 into the diversion channel 120, optimizing the uniform distribution of airflow in the cross-section of the air outlet 210. This provides a structural basis for achieving uniform airflow coverage across the entire area on the filter 300, while reducing the flow resistance between the guide plates 110 to reduce energy loss.

[0064] It should be noted that, as Figure 2As shown, the distance between the two guide plates 110 is L, and L gradually increases with the air outlet 210. Understandably, the air outlet 210 is parallel to the central axis of the air outlet 210 and is the direction in which the airflow flows from the guide assembly to the filter 300.

[0065] In some embodiments, the density of the guide holes 1102 on the guide plate 110 increases with the increase of the vertical distance from the central axis of the air outlet 210.

[0066] The density of the guide holes 1102 on the guide plate 110 increases with the increase of the vertical distance from the central axis of the air outlet 210, forming a layout with low near-axial hole density and high far-axial hole density. The lower hole density near the axis can increase the airflow penetration resistance and suppress excessive airflow concentration, while the higher hole density at the far axis provides a low-resistance channel for airflow, guiding more airflow to cover the edge of the filter 300, thereby further optimizing the airflow distribution in each area, improving the airflow control accuracy, and adapting to the different needs of airflow distribution, avoiding insufficient airflow control accuracy caused by the uniform density of the guide holes 1102.

[0067] like Figure 2 As shown, in some embodiments, there is a flow guiding angle between the central axis of the flow guide hole 1102 and the thickness direction of the flow guide plate 110; wherein, the vertical distance between the center point of the flow guide hole 1102 on the windward side 1101 and the central axis of the air outlet 210 is less than the vertical distance between the center point of the flow guide hole 1102 on the leeward side 1103 and the central axis of the air outlet 210.

[0068] By using the guide angle and the arrangement of the guide hole 1102 near the axis on the windward side 1101 and far from the axis on the leeward side 1103, the airflow can be guided within the guide hole 1102 from the opening on the windward side 1101 near the central axis to the opening on the leeward side 1103 far from the central axis. This allows the airflow to diffuse to both sides of the air outlet 210, improving the airflow diversion effect in the middle area of ​​the air outlet 210 and allowing the airflow to supplement the areas on both sides, so that the filter 300 can achieve uniform airflow coverage across the entire area. At the same time, the directional airflow can merge with the airflow guided by the diversion channel 120, avoiding mutual interference between airflows from different paths and further optimizing the uniformity of airflow distribution.

[0069] It should be noted that, as Figure 2 As shown, the thickness direction of the guide plate 110 is parallel to the Z' direction; the angle between the guide hole 1102 and the thickness direction of the guide plate 110 is α, the vertical distance between the center point of the guide hole 1102 on the windward side 1101 and the central axis of the air outlet 210 is L2, and the vertical distance between the center point of the guide hole 1102 on the leeward side 1103 and the central axis of the air outlet 210 is L1, where L2 < L1.

[0070] It should also be noted that, such as Figure 2 As shown, the angle between the multiple guide holes 1102 and the thickness direction of the guide plate 110 can be the same, or it can increase as the distance between the guide holes 1102 and the central axis of the air outlet 210 increases.

[0071] In some embodiments, the flow guiding structure 100 further includes a drive motor connected to the flow guiding plate 110 and used to drive the flow guiding plate 110 to rotate around the rotating shaft 130.

[0072] By driving the guide plate 110 to rotate by the drive motor, the rotation angle of the guide plate 110 around the rotating shaft 130 can be controlled more accurately compared with manual adjustment. This avoids the airflow distribution deviation caused by inaccurate angle during manual adjustment, thereby ensuring more precise control of the airflow through the guide hole 1102 and the diversion channel 120. This provides stable power support for optimizing the airflow distribution in each area of ​​the air outlet 210 and the uniform airflow coverage of the downstream filter 300.

[0073] It should be noted that there can be two drive motors. The rotating shaft 130 includes an outer shaft and an inner shaft passing through the outer shaft. The inner shaft is rotatably connected to the outer shaft through rolling bearings, and both ends of the inner shaft are located outside the outer shaft. The two guide plates 110 are respectively installed on the outer shaft and the inner shaft. The two drive motors are respectively connected to the inner shaft and the outer shaft, thereby driving each guide plate 110 to rotate independently.

[0074] Example 6 like Figure 1 As shown, this application embodiment also provides an air supply device 4, including a fan 200, a filter 300, and a flow guiding structure 100 of any embodiment of this application; the fan 200 includes an air outlet 210; the flow guiding structure 100 is disposed at the air outlet 210; the filter 300 is disposed downstream of the airflow of the flow guiding structure 100, and the filter 300 is used to filter the airflow after it has been guided by the flow guiding structure 100.

[0075] By optimizing the airflow distribution at the outlet 210 of the fan 200 through the guide structure 100, the problem of concentrated airflow in the middle and insufficient coverage on both sides of the filter 300 caused by the traditional fan 200's vertical forward blowing method is solved. This ensures that the airflow is evenly distributed to the downstream filter 300 after being guided, preventing premature clogging of the filter 300 due to excessively high air pressure. This fully utilizes the overall filtration performance of the filter 300, extends its service life, and reduces user replacement costs. Simultaneously, the airflow flowing through the filter 300 after being guided by the guide structure 100 ensures that all areas of the filter 300 participate in filtration, reducing filtration blind spots caused by uneven airflow and improving purification effect and efficiency.

[0076] It should be noted that, as Figure 1As shown, in order to ensure the filtration area and facilitate the installation of the filter screen 300 and the flow guiding structure 100, a support can be set at the air outlet 210, and the flow guiding structure 100 and the filter screen 300 can be installed on the support.

[0077] 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 filter 300 to detect the pressure generated by the airflow flowing through the guide hole 1102 and the diversion channel 120 respectively; the controller is electrically connected to the plurality of pressure sensors respectively, and the controller is configured to control the guide plate 110 to rotate according to the pressure detected by the pressure sensors, so as to adjust the airflow through the guide hole 1102 and the diversion channel.

[0078] The pressure sensor captures the pressure differences generated on the filter 300 through different airflow paths in real time, reflecting the airflow distribution. The controller drives the guide plate 110 to rotate according to the pressure detected by the pressure sensor, avoiding airflow imbalance and ensuring that the filter 300 is always in a state of uniform airflow coverage across the entire area. This not only dynamically adjusts the airflow distribution but also extends the service life of the filter 300. In addition, the airflow adjustment closed loop can be completed without manual intervention, avoiding the lag and error of manual adjustment.

[0079] In some embodiments, a pressure sensor is disposed on the side of the filter 300 opposite to the flow guiding structure 100; wherein, at least one pressure sensor is disposed in the projection area of ​​the flow guiding assembly and the flow diversion channel 120 on the filter 300.

[0080] The side of the filter 300 facing away from the guide structure 100 is the area where the airflow passes through the filter 300. The pressure here can more directly reflect the actual state of the airflow after it has passed through the guide and filter, avoiding interference from the airflow of the guide structure 100 itself on the detection data. At the same time, by using the controller to project the areas corresponding to different airflow paths, the pressure values ​​after passing through the filter 300 can be obtained for different airflow paths, which can determine whether the current airflow distribution is uniform. This provides an accurate basis for the controller to judge the balance of airflow distribution, avoids misjudgment of control due to position deviation, and then controls the rotation of the guide plate 110 accordingly.

[0081] It should be noted that the filter screen 300 is provided with a first filtration area, a second filtration area and a third filtration area, which are respectively the first diversion channel, the second diversion channel and the projection area of ​​the flow guiding component on the filter screen 300; If the detection pressure of the third filtration area is greater than that of the first filtration area, it means that the air pressure value of the guide assembly is greater than that of the first diversion channel. It is necessary to control the rotation of the first guide plate to increase the angle between the first guide plate and the central axis of the air outlet 210, and reduce the cross-sectional width of the first diversion channel. The first guide plate can guide the airflow to the edge area of ​​the filter screen 300 to a greater extent, increase the airflow in the first diversion channel, and reduce the airflow through the guide hole 1102. If the detection pressure of the third filtration area is greater than that of the second filtration area, it means that the outlet pressure of the flow guide component is greater than that of the outlet pressure of the second diversion channel. It is necessary to control the rotation of the second flow guide plate to increase the angle between the second flow guide plate and the central axis of the air outlet 210, and reduce the cross-sectional width of the second diversion channel. The second flow guide plate can guide the airflow to the edge area of ​​the filter screen 300 to a greater extent, increase the airflow in the second diversion channel, and reduce the airflow through the flow guide hole 1102. If the detection pressure of the third filtration area is greater than that of the first filtration area and the second filtration area, it indicates that the outlet pressure of the flow guiding component is greater than that of the first and second flow diversion channels. It is necessary to control the rotation of the first and second flow guiding plates to increase the angle between the first and second flow guiding plates and the central axis of the air outlet 210, while reducing the cross-sectional width of the first and second flow diversion channels. The first and second flow guiding plates can guide the airflow to the edge area of ​​the filter screen 300 to a greater extent, increasing the airflow in the first and second flow diversion channels and reducing the airflow through the flow guiding hole 1102.

[0082] It should also be noted that because the airflow in the middle area of ​​the air outlet 210 is large, while the airflow in the two side areas is relatively small, the detection pressure of the third filtration area is usually greater than that of the first and second filtration areas. That is, the outlet pressure of the air guiding component is usually greater than that of the first and second diversion channels. However, as the air supply device 4 continues to operate and the edge airflow is continuously strengthened, pollutants will gradually accumulate on the filter screen 300 in the edge area, which will cause the detection pressure of the third filtration area to be lower than that of the first and second filtration areas.

[0083] It should also be noted that multiple pressure sensors can be set in the first, second, and third filtration areas respectively, and the average value of multiple pressure sensors corresponding to the same filtration area can be used as the detection pressure, thereby improving the accuracy of pressure detection; alternatively, one pressure sensor can be set in each of the first, second, and third filtration areas.

[0084] 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.

[0085] 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 uniform flow structure. In addition, the vertical arrangement of the filter screen 300 in the height direction allows for more flexible adaptation to the installation space and facilitates its cooperation with other components such as the heat exchanger 5 in the installation space.

[0086] It should be noted that, as Figure 1 As shown, the height direction of the fan 200 is parallel to the Z direction.

[0087] Example 7 like Figure 3 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 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.

[0088] 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 difference 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.

[0089] It should be noted that heat exchanger 5 is used for airflow dehumidification or temperature regulation, and plays a role in regulating air quality.

[0090] It should also be noted that air purification equipment is equipment with air handling function, which can be, but is not limited to, air purifiers, fresh air systems, and fresh air air conditioners.

[0091] 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.

[0092] 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.

[0093] 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 guiding structure, characterized in that, When applied to an air supply device, the airflow guiding structure includes: A rotating shaft is disposed inside the air outlet of the air supply device; The airflow guiding assembly includes two airflow guiding plates rotatably mounted on the rotating shaft and located on both sides of the central axis of the air outlet. The airflow guiding plates are provided with a plurality of airflow guiding holes penetrating the thickness direction of the airflow guiding plates. The airflow guiding plates include a windward side and a leeward side arranged opposite to each other in the thickness direction of the airflow guiding plates. A flow diversion channel is formed between the windward side and the inner wall of the air outlet. The flow diversion channel is configured to guide the flowing airflow to a region close to the inner wall of the air outlet. Each of the guide vanes is configured to rotate independently relative to the rotating shaft to change the angle between the guide vane and the central axis of the air outlet, thereby adjusting the airflow through the guide hole and the diversion channel.

2. The flow guiding structure of claim 1, wherein, The rotating shaft is perpendicular to the central axis of the air outlet, and the distance between the two guide plates gradually increases along the air outlet direction.

3. The flow guiding structure according to claim 2, characterized in that, The density of the guide holes on the guide plate increases with the increase of the vertical distance from the central axis of the air outlet.

4. The flow guiding structure according to claim 3, characterized in that, The central axis of the guide hole has a guiding angle with the thickness direction of the guide plate; wherein, the vertical distance between the center point of the guide hole on the windward side and the central axis of the air outlet is less than the vertical distance between the center point of the guide hole on the leeward side and the central axis of the air outlet.

5. The flow guiding structure according to any one of claims 1-4, characterized in that, The flow guiding structure also includes a drive motor, which is connected to the flow guiding plate and is used to drive the flow guiding plate to rotate around the rotating shaft.

6. An air supply device, characterized in that, include: Fan, including air outlet; The airflow guiding structure as described in any one of claims 1-5 is disposed at the air outlet; A filter screen is disposed downstream of the airflow in the flow guiding structure, and the filter screen is used to filter the airflow after it has been guided by the flow guiding structure.

7. The air supply device according to claim 6, characterized in that, include: Multiple pressure sensors are disposed on the filter screen to detect the pressure generated by the airflow passing through the guide hole and the diversion channel, respectively; The controller is electrically connected to multiple pressure sensors, and the controller is configured to control the rotation of the guide plate according to the pressure detected by the pressure sensors, so as to adjust the air flow rate through the guide hole and the diversion channel.

8. The air supply device according to claim 7, characterized in that, The pressure sensor is disposed on the side of the filter screen away from the flow guiding structure; wherein, at least one pressure sensor is arranged in the projection area of ​​the flow guiding assembly and the flow diversion channel on the filter screen.

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 purification device, characterized in that, 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 6-9 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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