Air guide structure and air dispatching equipment

Abstract

The invention provides an air guide structure and air dispatching equipment, the air guide structure comprises a forward air outlet part and a reverse air outlet part, and is provided with at least one first through-flow channel and at least one turbulent flow channel, each first through-flow channel comprises a downstream section and an upstream section which are communicated, the downstream section is communicated with the forward air outlet part, and the upstream section is communicated with the reverse air outlet part; the upstream section extends away from the reverse air outlet part and is close to and penetrates through the reverse air outlet part, each turbulent flow channel comprises a flow dividing section and a backflow section which are communicated, the flow dividing section penetrates through the downstream section and / or the forward air outlet part, and the backflow section extends in the direction away from the reverse air outlet part and is communicated with the upstream section. According to the air guide structure and the air dispatching equipment, at least two different air blowing modes can be provided, the air power and the air speed of the first air blowing mode are higher than those of the second air blowing mode, and a user can adjust the forward air outlet part or the reverse air outlet part to face the indoor space according to requirements; therefore, wind power and wind speed of the air dispatching equipment are adjusted.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and in particular to an air guiding structure and air conditioning device. Background Technology

[0002] Air conditioning devices, such as bathroom heaters, ventilation units, fresh air systems, and air conditioners, typically incorporate airflow guiding structures, such as louvers. Traditional airflow guiding structures can only directionally discharge or guide airflow, and cannot adjust the airflow force and speed in multiple ways. Some existing airflow guiding structures can adjust their own position, changing the point of airflow exit by altering their orientation. However, the airflow from different points does not exhibit significant differences in speed or force, failing to meet users' needs for multiple levels of airflow force and speed. Summary of the Invention

[0003] In view of this, the present invention provides an air guiding structure and air control device capable of providing at least two blowing modes, each of which has two wind speeds and wind forces.

[0004] The air guiding structure of the present invention includes a forward air outlet and a reverse air outlet, and has at least one first cross-flow channel and at least one turbulence channel. Each first cross-flow channel includes a downstream section and an upstream section that are connected. The downstream section is connected to the forward air outlet, and the upstream section extends away from the reverse air outlet and approaches and is connected to the reverse air outlet. Each turbulence channel includes a diversion section and a return section that are connected. The diversion section is connected to the downstream section and / or the forward air outlet, and the return section is connected to the upstream section.

[0005] Compared with the prior art, the air guiding structure of the present invention can provide at least two different blowing modes, and the wind speed and wind force of the two blowing modes are different. In the first blowing mode, the airflow enters the upstream section from the reverse air outlet, then flows to the downstream section and finally blows out from the forward air outlet. In the second blowing mode, one airflow enters the downstream section from the forward air outlet, then flows to the upstream section and finally blows out from the reverse air outlet, and another airflow flows into the turbulence channel to form turbulent airflow. After leaving the return section, the turbulent airflow flows into the upstream section. The airflow that leaves the downstream section and flows into the upstream section is slowed down by the turbulent airflow. Therefore, the wind speed and wind force of the second blowing mode are weaker than those of the first blowing mode.

[0006] In one embodiment, the forward air outlet and the reverse air outlet are respectively formed on opposite sides of the air guide structure.

[0007] In one embodiment, the minimum cross-sectional dimension of the upstream segment is greater than or equal to the maximum cross-sectional dimension of the downstream segment.

[0008] With this configuration, when the forward-blowing airflow enters the upstream section from the reverse outlet, then flows through the downstream section and finally exits from the forward outlet, the gas velocity flowing into the downstream section is greater than the gas velocity flowing into the upstream section. Therefore, the forward-blowing airflow flowing through the first cross-flow channel can obtain increased wind power and wind speed.

[0009] In one embodiment, the cross-sectional dimensions of the upstream section decrease from the reverse air outlet to the downstream section; and / or, the cross-sectional dimensions of the downstream section decrease from the upstream section to the forward air outlet.

[0010] With this configuration, the velocity of the forward-blowing airflow gradually increases during the flow process, which helps to reduce the kinetic energy loss of the forward-blowing airflow flowing through the first cross-flow channel.

[0011] In one embodiment, the minimum cross-sectional size of the diversion section is greater than or equal to the maximum cross-sectional size of the recirculation section.

[0012] With this configuration, when a portion of the gas enters the downstream section from the forward outlet as a reverse-flowing airflow, then flows through the upstream section and finally exits from the reverse outlet, while another portion of the gas enters the diversion section from the downstream section and / or the forward outlet as a blocking airflow, then flows through the return section and finally flows into the upstream section, the gas velocity flowing into the return section is greater than the gas velocity flowing into the diversion section. Therefore, the blocking airflow can achieve a velocity increase during its flow, thereby enhancing the blocking effect of the blocking airflow on the reverse-flowing airflow, and thus reducing the velocity of the reverse-flowing airflow flowing through the first cross-flow channel to a greater extent.

[0013] In one embodiment, the cross-sectional dimensions of the diversion section decrease from the front outlet section to the return section; and / or, the cross-sectional dimensions of the return section decrease from the diversion section to the upstream section.

[0014] With this configuration, the velocity of the obstructing airflow gradually increases during the flow process, which helps to reduce the kinetic energy loss of the obstructing airflow, so that the obstructing airflow can weaken the kinetic energy of the reverse blowing airflow flowing through the first cross-flow channel to a greater extent.

[0015] In one embodiment, the diversion section and the return section are both located on the same side of the first crossflow channel.

[0016] This design makes the airflow structure more compact and occupies less space.

[0017] In one embodiment, the air guiding structure includes a first cover plate and a second cover plate spaced apart, and also includes a group of guiding ribs disposed between the first cover plate and the second cover plate. The first flow channel and the turbulence channel are located between the first cover plate and the second cover plate and are formed between the group of guiding ribs.

[0018] This design makes the air guide structure easier to form and easier to obtain.

[0019] In one embodiment, a splitting angle is formed between the splitting section and the downstream section, and the splitting angle is an acute angle in which the opening is away from the front air outlet.

[0020] With this configuration, when the reverse blowing airflow flows into the downstream section from the front outlet, the obstructing airflow can flow into the diversion section more easily with less kinetic energy loss, and the obstructing airflow can flow into the upstream section from the return section in a shorter time, so that the reverse blowing airflow flowing through the first cross-flow channel can be decelerated in time.

[0021] In one embodiment, a return angle is formed between the return section and the upstream section, and the return angle is an acute angle with the opening facing the reverse air outlet.

[0022] With this configuration, the obstructing airflow flowing from the return section into the upstream section has a more significant effect on slowing down the reverse blowing airflow flowing into the upstream section, and the flow velocity of the reverse blowing airflow flowing through the first cross-flow channel decreases more significantly.

[0023] In one embodiment, a second cross-flow channel is also provided. The second cross-flow channel includes a flow collection section and multiple branch sections. The flow collection section connects to the forward air outlet, and each branch section extends toward and connects to the reverse air outlet.

[0024] With this configuration, gas can flow from the reverse outlet into the bifurcation section, then through the converging section and out through the forward outlet to form a forward airflow for concentrated and small-scale blowing of the target. Gas can also flow from the forward outlet into the converging section, then through the bifurcation section and out through the reverse outlet to form a reverse airflow for large-scale blowing of the target.

[0025] In one embodiment, the minimum sum of the cross-sectional dimensions of the plurality of bifurcation segments is greater than or equal to the maximum cross-sectional dimension of the collection segment.

[0026] With this configuration, when the reverse airflow enters the collecting section from the front outlet, then flows through the bifurcation section and finally exits from the reverse outlet, the gas velocity flowing into the collecting section is greater than the gas velocity flowing into the bifurcation section. Therefore, the reverse airflow flowing through the second cross-flow channel can be weakened in terms of wind force and wind speed.

[0027] In one embodiment, a pivot connection is also included, the pivot connection having a pivot axis located between the forward air outlet and the reverse air outlet.

[0028] With this configuration, the air guide structure is connected to the power source for generating torque via a pivot connection. Driven by the power source, the air guide structure can rotate around the pivot axis, thereby changing the orientation of the front and back air outlets so that the position of the air guide structure meets the needs of different blowing modes.

[0029] In one embodiment, the turbulence channel further includes a bend section that bends into the diversion section and into the return section.

[0030] With this configuration, when the obstructing airflow flows from the split section to the bend section, and from the bend section to the return section, the obstructing airflow loses less kinetic energy, ensuring that the obstructing airflow effectively obstructs the opposing airflow flowing through the first cross-flow channel, and also improves the difficulty of the obstructing airflow flowing from the split section to the return section.

[0031] In one embodiment, the distance from one end of the return section connected to the branch section to the reverse air outlet is D1, and the distance from one end of the return section connected to the upstream section to the reverse air outlet is D2, where D2 > D1.

[0032] With this setup, in the second-level blowing mode, the turbulent airflow flowing from the diversion section into the return section will acquire a velocity component far away from the reverse outlet. After the turbulent airflow enters the upstream section, the airflow leaving the downstream section and flowing into the upstream section will collide with the turbulent airflow. In the first-level blowing mode, most of the airflow entering the upstream section from the reverse outlet flows into the downstream section and hardly enters the turbulence channel. Therefore, the wind speed and wind force in the second-level blowing mode are significantly weaker than those in the first-level blowing mode.

[0033] The air control device provided by the present invention includes an air guiding structure. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of an air guide structure according to an embodiment of the present invention;

[0035] Figure 2 This is a partial schematic diagram of the air guide structure according to an embodiment of the present invention;

[0036] Figure 3 This is a partial schematic diagram of the air guide structure according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the air guide structure of an embodiment of the present invention when air is being discharged in the forward direction;

[0038] Figure 5 for Figure 4 A partially enlarged schematic diagram of the air guide structure shown;

[0039] Figure 6 This is a schematic diagram of the air guide structure of one embodiment of the present invention when the air is discharged in the opposite direction;

[0040] Figure 7 for Figure 6 A partially enlarged schematic diagram of the air guiding structure shown.

[0041] Explanation of reference numerals in the attached drawings: 100, air guiding structure; 101, first cover plate; 102, second cover plate; 103, guide rib group; 1031, cross-flow guide rib; 1032, first turbulence rib; 1033, second turbulence rib; 1034, diversion guide rib; 110, front air outlet; 1101, front air outlet; 120, reverse air outlet; 1201, reverse air outlet; 130, pivot connection; 11, first cross-flow channel; 111, upstream section; 112, downstream section; 12, turbulence channel; 121, diversion section; 122, return section; 123, bending section; 13, second cross-flow channel; 131, collection section; 132, bifurcation section. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] This invention provides an air guide structure 100 for guiding gas to form a blowing airflow, an air guide device including the air guide structure 100 and a reversing unit, and an air conditioning device equipped with the air guide device. The air conditioning device can be a bathroom heater, a fresh air unit, a ventilation unit, an air conditioner, etc. The air guide structure 100 and the air guide device of this invention can provide at least two blowing modes. The difference between the two blowing modes lies in the wind speed and wind force of the blowing airflow. Users can select the first blowing mode to blow air into the room at high speed, or select the second blowing mode to blow air into the room at low speed.

[0045] See Figures 1-2The air guiding structure 100 includes a forward air outlet 110 and a reverse air outlet 120, and has a cross-flow channel connecting the forward air outlet 110 and the reverse air outlet 120. In some embodiments, the cross-flow channel includes at least one first cross-flow channel 11 and at least one turbulence channel 12, with the first cross-flow channel 11 connecting the forward air outlet 110 and the reverse air outlet 120; in other embodiments, the cross-flow channel includes at least one second cross-flow channel 13, with the second cross-flow channel 13 connecting the forward air outlet 110 and the reverse air outlet 120. The air guiding structure 100 can be compatible with the first cross-flow channel 11, the turbulence channel 12, and the second cross-flow channel 13, or it can only have the first cross-flow channel 11 and the turbulence channel 12, or it can only have the second cross-flow channel 13.

[0046] The air guide structure 100 is movably mounted on the external unit, which can be the unit of the air conditioning equipment or other electrical components. A reversing unit is connected to the air guide structure 100 and drives it relative to the external unit, thereby directing the forward air outlet 110 and the reverse air outlet 120 towards the indoor space under different airflow conditions. When the first airflow mode is selected, the forward air outlet 110 is directed towards the indoor space, and the air conditioning equipment operates in the first airflow mode. When the second airflow mode is selected, the reverse air outlet 120 is directed towards the indoor space, and the air conditioning equipment operates in the second airflow mode.

[0047] Each first crossflow channel 11 includes a downstream section 112 and an upstream section 111 connected to each other. The downstream section 112 passes through the front air outlet 110 to form a front air outlet 1101, and the upstream section 111 extends to and passes through the reverse air outlet 120 to form a reverse air outlet 1201. Each turbulence channel 12 includes a diversion section 121 and a return section 122 connected to each other. The diversion section 121 passes through at least one of the downstream section 112 and the front air outlet 110, and the return section 122 connects to the upstream section 111.

[0048] Optionally, see Figure 3 The distance from one end of the return section 122, which connects to the branch section 121, to the reverse outlet 120 is D1, and the distance from one end of the return section 122, which connects to the upstream section 111, to the reverse outlet 120 is D2, where D2 > D1. In other words, the return section 122 extends from the branch section 121 to the upstream section 111 and connects to the upstream section 111 in a direction away from the reverse outlet 120. The return section 122 penetrates the inner wall of the upstream section 111 to form a return opening. Optionally, the return opening faces the forward outlet 110.

[0049] With this configuration, in the second-level blowing mode, the turbulent airflow flowing from the diversion section 121 into the return section 122 will obtain a velocity component that is far away from the reverse outlet section 120. After the turbulent airflow enters the upstream section 111, the airflow leaving the downstream section 112 and flowing into the upstream section 111 will collide with the turbulent airflow, that is, the airflow velocity leaving the downstream section 112 and flowing into the upstream section 111 will be greatly reduced. In the first-level blowing mode, most of the airflow entering the upstream section 111 from the reverse outlet section 120 flows into the downstream section 112 and hardly enters the turbulent channel 12. Therefore, there is no situation where the airflow is slowed down due to the interference of the turbulent airflow. Thus, the wind force and wind speed of the second-level blowing mode are significantly weaker than those of the first-level blowing mode.

[0050] Each second cross-flow channel 13 includes a collection section 131 and multiple branch sections 132. The collection section 131 connects to the front air outlet 110 to form a front air outlet 1101. Any one of the multiple branch sections 132 connects to the reverse air outlet 120 to form multiple reverse air outlets 1201. The end of each collection section 131 that is relatively far from the front air outlet 110 is connected to at least two branch sections 132. The number of branch sections 132 included in each second cross-flow channel 13 is unlimited, and any one of the multiple branch sections 132 of each second cross-flow channel 13 is connected to the collection section 131 of that second cross-flow channel 13.

[0051] Furthermore, the air guide structure 100 also includes a pivot connection portion 130 that is rotatably connected to the external body. The pivot connection portion 130 has a pivot axis extending between the forward air outlet portion 110 and the reverse air outlet portion 120. The pivot connection portion 130 allows the air guide structure 100 to rotate relative to the external body around the pivot axis under the driving action of the reversing unit, so that the forward air outlet portion 110 and the reverse air outlet portion 120 face the indoor space in different blowing modes. That is, the air control device drives the air guide structure 100 to rotate relative to the body around the pivot axis through the reversing unit to switch the blowing mode of the air guide device. Figures 1-2 In the embodiment shown, the straight line referred to by S is denoted as the pivot axis of the pivot connection 130.

[0052] In other embodiments, the air guide structure 100 may also be movably connected to the external fuselage in other ways, rather than being limited to a rotatable connection to the external fuselage via the pivot connection 130.

[0053] In the implementation of the cross-flow channel including the first cross-flow channel 11 and the turbulence channel 12, in the first blowing mode, the forward air outlet 110 faces the indoor space, and the first blowing airflow enters the upstream section 111 from the reverse air outlet 120, then flows to the downstream section 112 and finally exits from the forward air outlet 110. In the second blowing mode, the reverse air outlet 120 faces the indoor space, and part of the airflow, as the second blowing airflow, enters the downstream section 112 from the forward air outlet 110, then flows to the upstream section 111 and finally exits from the reverse air outlet 120. The other part of the airflow, as the obstructing airflow, flows from the forward air outlet 110 and / or the downstream section 112 into the diversion section 121, and then flows into the upstream section 111 via the return section 122. This causes the second blowing airflow leaving the downstream section 112 and flowing into the upstream section 111 to be slowed down by the interference or counteracting effect of the obstructing airflow. Therefore, the wind speed and force of the first blowing airflow are significantly stronger than those of the second blowing airflow.

[0054] In the embodiment where the cross-flow channel includes the second cross-flow channel 13, in the first blowing mode, the forward air outlet 110 faces the indoor space, the first blowing airflow enters the bifurcation section 132 from the reverse air outlet 120, then flows to the collection section 131 and finally blows out from the forward air outlet 110. The first blowing airflow undergoes an evolution process from multiple dispersed streams to concentrated convergence, so that the airflow velocity blown out from the forward air outlet 110 is greater than or at least equal to the airflow velocity flowing into the reverse air outlet 120. In the second blowing mode, the reverse air outlet 120 faces the indoor space, the second blowing airflow enters the collection section 131 from the forward air outlet 110, then flows to the bifurcation section 132 and finally blows out from the reverse air outlet 120. The second blowing airflow undergoes an evolution process from concentrated to multiple dispersed streams, so that the airflow velocity blown out from the reverse air outlet 120 is less than the airflow velocity flowing into the forward air outlet 110. Therefore, the wind force and speed of the first blowing mode are stronger than those of the second blowing mode.

[0055] In some embodiments, the opening of any positive air outlet 1101 is smaller than the opening of any negative air outlet 1201. When the first blowing mode is selected, the first blowing airflow can concentrate and powerfully blow on a small area of ​​the target, and the width of the airflow is relatively small. When the second blowing mode is selected, the second blowing airflow can widely and gently blow on a large area of ​​the target, and the width of the airflow is relatively large.

[0056] Optionally, in any second flow channel 13, the minimum sum of the cross-sectional dimensions of multiple bifurcation segments 132 is greater than or equal to the maximum cross-sectional dimension of the flow collection segment 131. The same second flow channel 13 includes a flow collection segment 131 and all bifurcation segments 132 that connect to the flow collection segment 131.

[0057] Optionally, see Figure 3 , Figure 5 and Figure 7 In any second cross-flow channel 13, the cross-sectional dimension of the collecting section 131 tends to increase in the direction away from the positive air outlet 110 and closer to the bifurcation section 132 and the reverse air outlet 120; for any second cross-flow channel 13, the cross-sectional dimension of each bifurcation section 132 tends to increase in the direction away from the collecting section 131 and closer to the reverse air outlet 120.

[0058] In some embodiments, the forward air outlet 110 and the reverse air outlet 120 are arranged opposite to each other, and are respectively formed on two opposite sides of the elongated or plate-shaped air guide structure 100. See also Figure 1 The air guiding structure 100 includes a first cover plate 101 and a second cover plate 102 arranged at intervals. The first cover plate 101 and the second cover plate 102 are both long strip-shaped plates and are arranged facing each other. The forward air outlet 110 includes the first side of the first cover plate 101 and the second side of the second cover plate 102. The reverse air outlet 120 includes the second side of the first cover plate 101 and the second side of the second cover plate 102. The first side of the first cover plate 101 and the second side are arranged opposite to each other. The first side of the second cover plate 102 and the second side are arranged opposite to each other.

[0059] Furthermore, the air guiding structure 100 also includes a group of guide ribs 103 disposed on the first cover plate 101 and / or the second cover plate 102. The group of guide ribs 103 includes a plurality of guide ribs disposed at intervals between each other. The first cross-flow channel 11, the turbulence channel 12, and the second cross-flow channel 13 are located between the first cover plate 101 and the second cover plate 102, and all three are formed between the group of guide ribs 103. The positive air outlet 1101 is formed between the first side of the first cover plate 101 and the first side of the second cover plate 102, and the negative air outlet 1201 is formed between the second side of the first cover plate 101 and the second side of the second cover plate 102.

[0060] Optionally, in some embodiments, the flow guide ribs 103 are fixedly connected to the first cover plate 101 and the second cover plate 102, respectively, and the shapes of the first flow channel 11, the turbulence channel 12, and the second flow channel 13 are all fixed. In other embodiments, at least a portion of the flow guide ribs 103 are movably connected to the first cover plate 101 and / or the second cover plate 102, thereby changing the shape of at least a portion of the flow channels.

[0061] See Figures 1-2 The pivot connection 130 is a plug-in pivot protruding from the end of the first cover plate 101 and the end of the second cover plate 102. The pivot axis is the axis of the plug-in pivot. The extension direction of the pivot axis is the length direction of the first cover plate 101 and the second cover plate 102. The distance from the pivot axis to the positive air outlet 110 is equal to the distance from the pivot axis to the negative air outlet 120.

[0062] Taking the air guide device mounted on the bathroom heater as an example, the air guide structure 100 is rotatably connected to the body of the bathroom heater through the pivot connection part 130, and can rotate around the pivot axis under the drive of the reversing unit so that the position of the air guide structure 100 adapts to a specific blowing mode. In the first blowing mode, the front air outlet 110 faces the room so that the front air outlet 1101 connects to the room space, and the reverse air outlet 120 faces the inside of the bathroom heater so that the reverse air outlet 1201 connects to the internal air duct of the bathroom heater. In the second blowing mode, the front air outlet 110 faces the inside of the bathroom heater so that the front air outlet 1101 connects to the internal air duct of the bathroom heater, and the reverse air outlet 120 faces the room so that the reverse air outlet 1201 connects to the room space.

[0063] Optionally, the first cross-flow channel 11 corresponds one-to-one with the turbulence channel 12, that is, any first cross-flow channel 11 is matched with a turbulence channel 12, and the upstream section 111 of each first cross-flow channel 11 is connected to the return section 122 of the turbulence channel 12 that matches the first cross-flow channel 11. In other embodiments, at least one first cross-flow channel 11 may also correspond to multiple turbulence channels 12, that is, the return sections 122 of multiple turbulence channels 12 corresponding to the same first cross-flow channel 11 all extend in a direction away from the return air section, and all are connected to the upstream section 111 of the first cross-flow channel 11.

[0064] See Figures 1-2 The guide ribs 103 are connected to the side of the first cover plate 101 near the second cover plate 102 and / or the side of the second cover plate 102 near the first cover plate 101. Therefore, the first flow channel 11, the turbulence channel 12, and the second flow channel 13 are all formed in the gap between the first cover plate 101 and the second cover plate 102. The diversion section 121 and the return section 122 of each turbulence channel 12 are located on the same side of the first flow channel 11 corresponding to that turbulence channel 12. (See reference...) Figure 3 The diversion section 121 and the return section 122 of the turbulence channel 12 are both located on the right side of the corresponding first through channel 11.

[0065] Furthermore, the first cross-flow channel 11, the turbulence channel 12, and the second cross-flow channel 13 occupy different positions in the extension direction of the pivot axis. With this arrangement, the air guide structure 100 has a reasonable structure, and the overall structure is thinner and flatter, making it more suitable for conventional air conditioning, bathroom heaters, fresh air units, and other air control devices, and it can generate a flat airflow.

[0066] Furthermore, there are multiple groups of guide ribs 103, each group comprising several guide ribs spaced apart from each other. These multiple groups of guide ribs are arranged at intervals along the length of the first cover plate 101 and the second cover plate 102, thereby forming multiple rows of first flow channels 11, multiple rows of turbulence channels 12, and multiple rows of second flow channels 13. (See reference...) Figures 1-2 , Figures 4-7 The first flow channel 11 corresponds one-to-one with the turbulence channel 12, and each turbulence channel 12 is located to the right of the corresponding first flow channel 11.

[0067] See Figure 3 In some embodiments, each flow guide group 103 includes a through flow guide 1031, a first turbulence guide 1032, a second turbulence guide 1033, and a diversion flow guide 1034. For any flow guide group 103, the through flow guide 1031 and the first turbulence guide 1032 are arranged at intervals along the extension direction of the pivot axis, the second turbulence guide 1033 is located on the side of the first turbulence guide 1032 closer to the through flow guide 1031, and the diversion flow guide 1034 is located on the other side of the first turbulence guide 1032 away from the through flow guide 1031. The first flow channel 11 is formed on the side of the flow guide rib 1031 close to the first turbulence rib 1032 and the second turbulence rib 1033. There is a gap between the first turbulence rib 1032 and the second turbulence rib 1033 for forming the turbulence channel 12. The second flow channel 13 is formed on the side of the first turbulence rib 1032 away from the first flow channel 11.

[0068] Furthermore, for any given group of guide ribs 103, the number of diversion guide ribs 1034 can be one or more, and each diversion guide rib 1034 has bifurcated sections 132 on both sides. The diversion guide rib 1034 can include curved obstruction sections, which can be wavy strip structures or serrated strip structures. The obstruction sections can increase resistance to airflow; when the air guide device is switched to the second blowing mode, the obstruction sections can produce a more significant speed reduction effect on the second blowing airflow. Of course, the surface of the diversion guide rib 1034 that contacts the airflow can also be a plane.

[0069] Furthermore, the multiple first cross-flow channels 11 respectively arrange the multiple positive air outlets 1101 formed by the through-flow section 110 along the extension direction of the pivot axis, the multiple first cross-flow channels 11 respectively arrange the multiple reverse air outlets 1201 formed by the through-flow section 120 along the extension direction of the pivot axis, and the multiple second cross-flow channels 13 respectively arrange the multiple positive air outlets 1101 formed by the through-flow section 110 along the extension direction of the pivot axis.

[0070] Furthermore, for any given second cross-flow channel 13, the multiple bifurcated segments 132 occupy different positions along the extension direction of the pivot axis. These bifurcated segments 132 penetrate the reverse air outlet 120, thereby forming multiple reverse air outlets 1201 arranged sequentially along the extension direction of the pivot axis. Specifically, when at least one second cross-flow channel 13 includes three or more bifurcated segments 132, at least two diversion guide ribs 1034 are provided within the second cross-flow channel 13, and these diversion guide ribs 1034 occupy different positions along the extension direction of the pivot axis. With this configuration, the overall air guiding structure 100 tends to be flatter and thinner, and the shape of the formed airflow jet is also flatter.

[0071] Furthermore, the upstream section 111 is formed between the cross-flow guide rib 1031 and the first turbulence rib 1032, and the downstream section 112 is formed between the cross-flow guide rib 1031 and the second turbulence rib 1033. The turbulence channel 12 also includes a bent section 123 formed between the first turbulence rib 1032 and the second turbulence rib 1033. The bent section 123 bends and connects with the diversion section 121, and bends and connects with the return section 122. The diversion guide rib 1034 is located between the side of the first turbulence rib 1032 away from the first cross-flow channel 11 and the cross-flow guide rib 1031 of the next group of guide ribs 103. The cross-flow guide rib 1031 can be a strip structure with uniform width, or it can be a structure that gradually widens from the reverse air outlet 120 to the forward air outlet 110.

[0072] Optionally, in some embodiments, a splitting angle is formed between the splitting section 121 and the downstream section 112, see [reference]. Figure 3 The splitting angle is Figure 3 The angle ∠γ is used to indicate that the splitting angle is acute and the opening of the splitting angle is away from the front outlet 110. With this setting, whether the obstructing airflow flows into the splitting section 121 from the downstream section 112 or directly into the splitting section 121 that connects the front outlet 110, the splitting angle allows the obstructing airflow to flow into the turbulence channel 12 more smoothly and with less kinetic energy loss. This helps to obtain more obstructing airflow so as to fully interfere with and reduce the speed of the second blowing airflow.

[0073] Optionally, in some embodiments, a recirculation angle is formed between the recirculation section 122 and the upstream section 111, see [reference]. Figure 3 Reflux angle at Figure 3The diagram shows that the return angle is acute and its opening faces the reverse air outlet 120. With this configuration, in the second-level blowing mode, the second blowing airflow within the first cross-flow channel 11 flows towards the reverse air outlet 120. The obstructing airflow flowing from the return section 122 into the upstream section 111 has a backflow velocity component that moves away from the reverse air outlet 120. Therefore, the obstructing airflow uses this backflow velocity component to counteract the second blowing airflow, thus achieving low-speed blowing into the room. In the first-level blowing mode, the first blowing airflow within the first cross-flow channel 11 hardly enters the return section 122, and even if a small amount of airflow enters the return section 122, it will not significantly weaken the wind force and speed of the first blowing airflow. Therefore, the wind speed and wind force of the first blowing airflow are significantly greater than those of the second blowing airflow.

[0074] Optionally, in some embodiments, the minimum cross-sectional dimension of the upstream segment 111 is greater than or equal to the maximum cross-sectional dimension of the downstream segment 112. See also... Figures 4-5 The cross-sectional dimensions of the upstream section 111 decrease from the reverse air outlet 120 towards the downstream section 112, and the cross-sectional dimensions of the downstream section 112 decrease from the upstream section 111 towards the forward air outlet 110. This means that in the first blowing mode, the velocity and wind force of the first blowing airflow passing through the first cross-flow channel 11 gradually increase, while in the second blowing mode, the velocity and wind force of the second blowing airflow passing through the first cross-flow channel 11 gradually decrease.

[0075] Furthermore, Figures 4-5 In the embodiment shown, the cross-sectional dimension of the second cross-flow channel 13 decreases along the direction of the first airflow velocity. This means that in the first blowing mode, the velocity and wind force of the first airflow flowing through the second cross-flow channel 13 gradually increase, while in the second blowing mode, the velocity and wind force of the second airflow flowing through the second cross-flow channel 13 gradually decrease.

[0076] Optionally, in some embodiments, the cross-sectional dimensions of the collecting section 131 increase from the front air outlet 110 toward the bifurcation section 132, and the cross-sectional dimensions of any bifurcation section 132 increase from the collecting section 131 toward the reverse air outlet 120. Therefore, the flow velocity of the second blowing airflow flowing in the collecting section 131 gradually decreases, and the flow velocity of the second blowing airflow flowing in the bifurcation section 132 gradually decreases, ultimately significantly weakening the wind speed and wind force of the second blowing airflow flowing through the second cross-flow channel 13.

[0077] In some embodiments, the forward air outlet 110 and the reverse air outlet 120 are arranged opposite to each other, and the flow direction of the first airflow is defined as: away from the reverse air outlet 120 and close to the forward air outlet 110; the flow direction of the second airflow is defined as: away from the forward air outlet 110 and close to the reverse air outlet 120.

[0078] Optionally, in some embodiments, the minimum cross-sectional dimension of the diversion section 121 is greater than or equal to the maximum cross-sectional dimension of the return section 122. See also Figures 6-7 The cross-sectional dimensions of the diversion section 121 decrease from the front outlet section 110 and / or downstream section 112 towards the return section 122, and the cross-sectional dimensions of the return section 122 decrease from the diversion section 121 towards the upstream section 111. Therefore, the cross-sectional dimensions of the turbulence channel 12 gradually decrease along the velocity direction of the obstructing airflow, and the velocity of the obstructing airflow gradually increases within the turbulence channel 12. This means that compared to the obstructing airflow immediately flowing into the diversion section 121, the obstructing airflow flowing from the return section 122 into the upstream section 111 has a higher velocity and can form a larger backflow velocity component, thus more powerfully interfering with or counteracting the second blowing airflow. In other embodiments, the cross-sectional dimensions of the turbulence channel 12 remain constant along the velocity direction of the obstructing airflow.

[0079] The obstructed airflow path passes sequentially through: the main outlet 110, the diversion section 121, the return section 122, and the upstream section 111. In some embodiments, the obstruction channel 12 further includes a bend section 123, one end of which connects to the diversion section 121, and the other end of which connects to the return section 122. The obstructed airflow path then passes sequentially through: the main outlet 110, the diversion section 121, the bend section 123, the return section 122, and the upstream section 111.

[0080] This invention does not limit the length of the upstream segment 111 and the downstream segment 112, nor does it limit their specific shapes. Regardless of whether the first or second blowing mode is activated, the positions the blowing airflow passes through sequentially follow the following:

[0081] When the first blowing airflow passes through the first cross-flow channel 11, the gas first flows through the upstream section 111 and then through the downstream section 112; when the second blowing airflow passes through the first cross-flow channel 11, the gas first flows through the downstream section 112 and then through the upstream section 111.

[0082] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An air guiding structure, characterized in that, It includes a front air outlet (110) and a back air outlet (120), and has at least one first cross-flow channel (11) and at least one turbulence channel (12). Each of the first cross-flow channels (11) includes a downstream section (112) and an upstream section (111) that are connected to each other. The downstream section (112) extends through the forward air outlet (110), and the upstream section (111) extends toward and through the reverse air outlet (120). Each of the aforementioned turbulence channels (12) includes a connected diversion section (121) and a return section (122), wherein the diversion section (121) extends through the downstream section (112) and / or the forward air outlet (110), and the return section (122) connects to the upstream section (111).

2. The air guiding structure according to claim 1, characterized in that, The forward air outlet (110) and the reverse air outlet (120) are respectively formed on opposite sides of the air guide structure.

3. The air guiding structure according to claim 2, characterized in that, The minimum cross-sectional dimension of the upstream segment (111) is greater than or equal to the maximum cross-sectional dimension of the downstream segment (112).

4. The air guiding structure according to claim 3, characterized in that, The cross-sectional dimensions of the upstream section (111) decrease from the reverse air outlet (120) to the downstream section (112); and / or, The cross-sectional dimensions of the downstream section (112) decrease from the upstream section (111) to the front air outlet (110).

5. The air guiding structure according to claim 2, characterized in that, The minimum cross-sectional dimension of the diversion section (121) is greater than or equal to the maximum cross-sectional dimension of the return section (122).

6. The air guiding structure according to claim 5, characterized in that, The cross-sectional dimensions of the diversion section (121) decrease from the front outlet section (110) to the return section (122); and / or, The cross-sectional dimensions of the return section (122) decrease from the diversion section (121) to the upstream section (111).

7. The air guiding structure according to any one of claims 1 to 6, characterized in that, The diversion section (121) and the return section (122) are both located on the same side of the first through-flow channel (11); and / or, The air guiding structure includes a first cover plate (101) and a second cover plate (102) with spaced layers, and also includes a group of air guiding ribs (103) disposed in at least one of the first cover plate (101) and the second cover plate (102). The first flow channel (11) and the turbulence channel (12) are located between the first cover plate (101) and the second cover plate (102), and are formed between the flow guide ribs (103).

8. The air guiding structure according to claim 7, characterized in that, A flow splitting angle is formed between the flow splitting section (121) and the downstream section (112), the flow splitting angle being an acute angle in which the opening faces away from the front air outlet (110); and / or, A return angle is formed between the return section (122) and the upstream section (111), and the return angle is an acute angle with the opening facing the reverse air outlet (120).

9. The air guiding structure according to any one of claims 1 to 6, characterized in that, The distance from one end of the return section (122) connected to the branch section (121) to the reverse air outlet (120) is D1, and the distance from one end of the return section (122) connected to the upstream section (111) to the reverse air outlet (120) is D2, where D2 > D1.

10. The air guiding structure according to any one of claims 1 to 6, characterized in that, A second cross-flow channel (13) is also provided. The second cross-flow channel (13) includes a flow collection section (131) and multiple branch sections (132). The flow collection section (131) passes through the positive air outlet (110). Each branch section (132) extends toward and passes through the reverse air outlet (120).

11. The air guiding structure according to claim 10, characterized in that, The minimum sum of the cross-sectional dimensions of the plurality of bifurcation segments (132) is greater than or equal to the maximum cross-sectional dimension of the collection segment (131).

12. The air guiding structure according to any one of claims 1 to 6, characterized in that, It also includes a pivot connection (130) having a pivot axis located between the forward air outlet (110) and the reverse air outlet (120); and / or, The turbulence channel (12) further includes a bending section (123), which bends and transitions with the diversion section (121), and also bends and transitions with the return section (122).

13. An air control device, characterized in that, Includes the air guiding structure as described in any one of claims 1 to 12.

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