Air guide device and air dispatching equipment
By designing a movable air guide structure and reversing unit, the adjustment of multi-speed wind force and wind speed is achieved, solving the problem that traditional air guide structure cannot meet the needs of multiple-speeds, and providing a more flexible air scheduling effect.
Patent Information
- Application Number
- CN202421143402.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The traditional air guide structure cannot adjust the wind force and wind speed of the airflow in multiple gears, and cannot meet the user's needs for wind force and wind speed.
Design a air guide device, including a movable air guide structure and a reversing unit, the air guide structure has a positive air outlet and an inverted air outlet. Through the design of the flow channel and the bifurcation section, at least two steps of blowing air is realized. Mode, the first gear wind power and wind speed are stronger than the second gear.
Multi-speed adjustment to the indoor high-speed and low-speed air blowing is realized to meet the wind power and wind speed settings of users for different needs.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical appliances, in particular to an air guide device and air dispatching equipment. Background Art
[0002] Air dispatching equipment represented by bathroom heaters, ventilators, fresh air blowers, and air conditioners are usually equipped with air guide structures, such as swing leaves. Traditional air guide structures can only discharge or guide the airflow in a directional manner, and cannot adjust the wind force and wind speed of the airflow in multiple levels. There are some air guide structures that can adjust their own posture. They adjust the position of the airflow by changing the posture. However, it is difficult to produce significant differences in the wind speed and wind force of the airflow blown out from different parts, which cannot meet the user's needs for multiple wind forces and wind speeds. Utility Model Content
[0003] In view of this, the utility model provides an air guide device and air dispatching equipment which can provide at least two blowing modes, and the two blowing modes respectively have two levels of wind speed and wind force.
[0004] The wind guide device of the utility model includes a wind guide structure movably arranged on an external body and a reversing unit connected to the wind guide structure, the wind guide structure includes a positive air outlet and a reverse air outlet, and the reversing unit is used to drive the wind guide structure to move relative to the external body so that the positive air outlet and the reverse air outlet are respectively oriented toward the indoor space under different blowing conditions; the wind guide structure is provided with at least one through-flow channel, and at least one through-flow channel includes a collecting section that passes through the positive air outlet and a plurality of branching sections that respectively pass through the reverse air outlet, and an end of the collecting section that is relatively far away from the positive air outlet is connected to at least two branching sections.
[0005] Compared with the prior art, the air guiding device of the utility model can provide at least two blowing modes. In the first blowing mode, the airflow enters the bifurcated section from the reverse air outlet, then flows to the collecting section and is finally blown out from the positive air outlet. In the second blowing mode, the airflow enters the collecting section from the positive air outlet, then flows to the bifurcated section and is finally blown out from the reverse air outlet. The wind force and wind speed of the first blowing mode are stronger than the wind force and wind speed of the second blowing mode. Users can adjust the positive air outlet or the reverse air outlet to face the indoor space according to needs, thereby adjusting the wind force and wind speed of the air dispatching equipment.
[0006] In one embodiment, the minimum value of the sum of the cross-sections of the plurality of branching segments is greater than or equal to the maximum value of the cross-section size of the current collecting segment.
[0007] With such arrangement, in the second-speed blowing mode, the velocity of the airflow passing through the branching section is lower than the velocity of the airflow passing through the collecting section, thereby making the velocity of the airflow flowing out of the reverse air outlet smaller than the velocity of the airflow flowing into the positive air outlet, thereby achieving low-speed blowing into the room. In the first-speed blowing mode, the velocity of the airflow flowing out of the positive air outlet is equal to or greater than the velocity of the airflow flowing into the reverse air outlet, thereby achieving high-speed blowing into the room.
[0008] In one embodiment, the cross-sectional size of the collecting section increases in a direction away from the positive air outlet and close to the bifurcation section; and / or the cross-sectional size of at least one bifurcation section increases in a direction away from the collecting section and close to the reverse air outlet.
[0009] With such arrangement, in the second-speed blowing mode, the air flow velocity in the collecting section decreases as the air flow flows toward the branching section, and the air flow velocity in the branching section decreases as the air flow flows toward the reverse air outlet, thereby making the air flow velocity flowing out of the reverse air outlet smaller than the air flow velocity flowing into the positive air outlet, thereby achieving low-speed blowing into the room. In the first-speed blowing mode, the air flow velocity in the branching section increases as the air flow flows toward the collecting section, and the air flow velocity in the collecting section increases as the air flow flows toward the positive air outlet, thereby making the air flow velocity flowing out of the positive air outlet larger than the air flow velocity flowing into the reverse air outlet, thereby achieving high-speed blowing into the room.
[0010] In one embodiment, the air guide structure includes a first cover plate and a second cover plate that are spaced apart, and a guide rib group provided on the first cover plate and / or the second cover plate. The through-flow channel is located between the first cover plate and the second cover plate. The guide rib group includes at least one diversion guide rib, and each diversion guide rib has a bifurcation section on both sides.
[0011] With such arrangement, the diverter guide ribs divide a part of the through-flow channel into at least two branch sections. In the second blowing mode, the friction between the airflow flowing through the branch section and the diverter guide ribs causes the airflow velocity to gradually decrease, thereby facilitating the airflow velocity out of the positive air outlet to be greater than the airflow velocity into the reverse air outlet, thereby helping to achieve low-speed blowing into the room.
[0012] In one embodiment, the flow-dividing and guiding rib includes a flow-blocking section extending in a curve.
[0013] With such arrangement, the blocking section can slow down the speed of the airflow passing through the bifurcating section in the second-speed blowing mode.
[0014] In one embodiment, the air guide structure also includes a pivot connection portion rotatably connected to the external body, the pivot connection portion having a pivot axis located between the positive air outlet portion and the reverse air outlet portion, so that the air guide structure is driven by the reversing unit to rotate around the pivot axis, thereby making the positive air outlet portion or the reverse air outlet portion face the indoor space.
[0015] With such an arrangement, the air guide structure can be more easily installed on the external fuselage, and the air guide structure can be more easily and quickly controlled to change its position so that the positive air outlet and the reverse air outlet are respectively directed toward the indoor space under different blowing conditions.
[0016] In one embodiment, the positive air outlet and the reverse air outlet are respectively formed on two opposite sides of the air guide structure, and the distance from the pivot axis to the positive air outlet is equal to the distance from the pivot axis to the reverse air outlet.
[0017] With such an arrangement, the air guide structure is reasonably constructed. Regardless of switching from the positive air outlet toward the indoor room to the reverse air outlet toward the indoor room, or switching from the reverse air outlet toward the indoor room to the positive air outlet toward the indoor room, the reversing unit can operate at the same or substantially the same power to drive the air guide structure, and the structure and size of the air dispatching equipment under different blowing conditions remain substantially uniform, thereby improving ease of use.
[0018] In one embodiment, there are multiple through-flow channels, and the multiple through-flow channels are arranged in sequence along the extension direction of the pivot axis.
[0019] With such arrangement, the air guide structure is reasonably constructed and the overall structure is flat, which is more suitable for conventional air dispatching devices and can generate a flattened blowing air beam.
[0020] In one embodiment, the plurality of branching sections occupy different positions in the extension direction of the pivot axis, and penetrate the reverse air outlet portion to form a plurality of reverse air outlets sequentially arranged along the extension direction of the pivot axis.
[0021] With such arrangement, the air guide structure is reasonably constructed and the overall structure is flat, which is more suitable for conventional air dispatching devices. In the first blowing mode, the flattened blowing air beams are allowed to enter the multiple reverse air outlets of the reverse air outlet part respectively. In the second blowing mode, the multiple blowing air beams blown out from the reverse air outlets are arranged along the extension direction of the pivot axis.
[0022] The air dispatching equipment provided by the utility model comprises a fuselage and an air guide device, wherein the air guide structure is movably arranged on the fuselage, and a reversing unit is used for driving the air guide structure to move relative to the fuselage so that the positive air outlet and the reverse air outlet are respectively directed toward the room under different blowing conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a three-dimensional schematic diagram of an air guide structure according to an embodiment of the utility model;
[0024] Figure 2 A partial schematic diagram of an air guide structure according to an embodiment of the utility model;
[0025] Figure 3A partial schematic diagram of an air guide structure according to an embodiment of the utility model;
[0026] Figure 4 This is a schematic diagram of an air guide structure of an embodiment of the utility model when the air is discharged in a positive direction;
[0027] Figure 5 for Figure 4 A partial enlarged schematic diagram of the air guide structure shown;
[0028] Figure 6 This is a schematic diagram of the wind guide structure of one embodiment of the utility model when the wind is discharged in the reverse direction;
[0029] Figure 7 for Figure 6 A partial enlarged schematic diagram of the air guide structure shown.
[0030] Explanation of the reference numerals: 100, air guide structure; 101, first cover plate; 102, second cover plate; 103, guide rib group; 1031, through-flow guide rib; 1032, first spoiler rib; 1033, second spoiler rib; 1034, diverter guide rib; 110, positive air outlet; 1101, positive air outlet; 120, reverse air outlet; 1201, reverse air outlet; 130, pivot connection; 11, first through-flow channel; 111, upstream section; 112, downstream section; 12, spoiler channel; 121, diverter section; 122, reflux section; 123, bending section; 13, second through-flow channel; 131, collecting section; 132, bifurcation section. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.
[0033] The utility model 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 dispatching device equipped with the air guide device, the air dispatching device can be a bathroom heater, a fresh air blower, a ventilator, an air conditioner, etc. The air guide structure 100 and the air guide device of the utility model can provide at least two blowing modes, the difference between the two blowing modes is the wind speed and wind force of the blowing airflow, the user can select the first blowing mode to blow air into the room at a high speed, or select the second blowing mode to blow air into the room at a low speed.
[0034] See also Figure 1-2 The air guide structure 100 includes a positive air outlet 110 and a negative air outlet 120, and a through-flow channel penetrating the positive air outlet 110 and the negative air outlet 120 is provided. In some embodiments, the through-flow channel includes at least one first through-flow channel 11 and at least one spoiler channel 12, and the first through-flow channel 11 penetrates the positive air outlet 110 and the negative air outlet 120; in some other embodiments, the through-flow channel includes at least one second through-flow channel 13, and the second through-flow channel 13 penetrates the positive air outlet 110 and the negative air outlet 120. The air guide structure 100 may be compatible with the first through-flow channel 11, the spoiler channel 12, and the second through-flow channel 13, or may only have the first through-flow channel 11 and the spoiler channel 12, or may only have the second through-flow channel 13.
[0035] The air guide structure 100 is movably arranged on the external body, and the external body can be the body of the air dispatching device or the body of other electrical appliances; the reversing unit is connected to the air guide structure 100, and is used to drive the air guide structure 100 to move relative to the external body so as to drive the positive air outlet 110 and the reverse air outlet 120 to face the indoor space under different blowing conditions. When the first blowing mode is selected, the positive air outlet 110 is brought to face the indoor space, and the air dispatching device can operate the first blowing condition; when the second blowing mode is selected, the reverse air outlet 120 is brought to face the indoor space, and the air dispatching device can operate the second blowing condition.
[0036] Each first through-flow channel 11 includes a connected downstream section 112 and an upstream section 111, the downstream section 112 penetrates the positive air outlet 110 to form a positive air outlet 1101, and the upstream section 111 extends toward the reverse air outlet 120 and penetrates the reverse air outlet 120 to form a reverse air outlet 1201; each spoiler channel 12 includes a connected diversion section 121 and a return flow section 122, the diversion section 121 penetrates at least one of the downstream section 112 and the positive air outlet 110, and the return flow section 122 is connected to the upstream section 111.
[0037] Optionally, see Figure 3The distance from one end of the return section 122 connected to the diverter 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, D2>D1, in other words, the return section 122 extends from the diverter section 121 to the upstream section 111 in a direction away from the reverse air outlet 120 and connects to the upstream section 111. The return section 122 penetrates the inner wall of the upstream section 111 to form a return opening, and optionally, the return opening faces the positive air outlet 110.
[0038] With such arrangement, in the second-speed blowing mode, the turbulent airflow flowing from the diversion section 121 into the return section 122 will obtain a velocity component away from the reverse air 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 velocity of the airflow leaving the downstream section 112 and flowing into the upstream section 111 is greatly reduced. In the first-speed blowing mode, most of the airflow entering the upstream section 111 from the reverse air 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 disturbed by the turbulent airflow and slows down. Therefore, the wind force and wind speed of the second-speed blowing mode are significantly weaker than those of the first-speed blowing mode.
[0039] Each second through-flow channel 13 includes a collecting section 131 and a plurality of branching sections 132. The collecting section 131 penetrates the positive air outlet 110 to form a positive air outlet 1101. Any one of the plurality of branching sections 132 penetrates the reverse air outlet 120 to form a plurality of reverse air outlets 1201. One end of each collecting section 131 relatively far from the positive air outlet 110 is connected to at least two branching sections 132. The number of branching sections 132 included in each second through-flow channel 13 is not limited, and any one of the plurality of branching sections 132 of each second through-flow channel 13 is connected to the collecting section 131 of the second through-flow channel 13.
[0040] Furthermore, the air guide structure 100 also includes a pivot connection portion 130 rotatably connected to the external body, the pivot connection portion 130 has a pivot axis extending between the positive air outlet portion 110 and the reverse air outlet portion 120, and the pivot connection portion 130 allows the air guide structure 100 to rotate around the pivot axis relative to the external body under the driving action of the reversing unit, so that the positive air outlet portion 110 and the reverse air outlet portion 120 are respectively directed toward the indoor space in different blowing modes, that is, the air dispatching device drives the air guide structure 100 to rotate around the pivot axis relative to the body through the reversing unit to switch the blowing mode of the air guide device. Figure 1-2 In the illustrated embodiment, the straight line indicated by S is recorded as the pivot axis of the pivot connection portion 130 .
[0041] In other embodiments, the wind guide structure 100 may also be movably connected to the external body in other ways, and is not necessarily limited to being rotationally connected to the external body through the pivot connection portion 130 .
[0042] For the embodiment in which the through-flow channel includes the first through-flow channel 11 and the spoiler channel 12, in the first blowing mode, the positive air outlet 110 faces the indoor space, the first blowing airflow enters the upstream section 111 from the reverse air outlet 120, then flows to the downstream section 112 and finally blows out from the positive air outlet 110; in the second blowing mode, the reverse air outlet 120 faces the indoor space, a part of the airflow enters the downstream section 112 from the positive air outlet 110 as the second blowing airflow, then flows to the upstream section 111 and finally blows out from the reverse air outlet 120, and another part of the airflow flows from the positive air outlet 110 and / or the downstream section 112 into the diversion section 121 as the obstruction airflow, and then flows into the upstream section 111 through the return section 122, resulting in the second blowing airflow leaving the downstream section 112 and flowing into the upstream section 111 being interfered with or counteracted by the obstruction airflow and decelerating. Therefore, the wind speed and wind force of the first blowing airflow are significantly stronger than the wind speed and wind force of the second blowing airflow.
[0043] For the implementation mode in which the through-flow channel includes the second through-flow channel 13, in the first blowing mode, the positive air outlet 110 is directed toward the indoor space, the first blowing airflow enters the branching section 132 from the reverse air outlet 120, then flows to the collecting section 131 and is finally blown out from the positive air outlet 110, and the first blowing airflow undergoes an evolution process from multiple dispersions to concentrated convergence, so that the wind speed of the airflow blown out of the positive air outlet 110 is greater than or at least equal to the wind speed of the airflow flowing into the reverse air outlet 120; in the second blowing mode, the reverse air outlet 120 is directed toward the indoor space, the second blowing airflow enters the collecting section 131 from the positive air outlet 110, then flows to the branching section 132 and is finally blown out from the reverse air outlet 120, and the second blowing airflow undergoes an evolution process from concentrated to multiple dispersions, so that the wind speed of the airflow blown out of the reverse air outlet 120 is less than the wind speed of the airflow flowing into the positive air outlet 110. Therefore, the wind force and wind speed of the first-gear blowing mode are stronger than the wind force and wind speed of the second-gear blowing mode.
[0044] In some embodiments, the opening of any positive air outlet 1101 is smaller than the opening of any reverse air outlet 1201. When the first blowing mode is selected, the first blowing airflow can be concentrated and powerfully blown to a small range of blowing targets, and the wind beam width of the first blowing airflow is relatively small; when the second blowing mode is selected, the second blowing airflow can be widely and lightly blown to a large range of blowing targets, and the wind beam width of the second blowing airflow is relatively large.
[0045] Optionally, in any second through-flow channel 13 , the minimum sum of the cross-sectional dimensions of the plurality of branching sections 132 is greater than or equal to the maximum cross-sectional dimension of the collecting section 131 , and the same second through-flow channel 13 includes a collecting section 131 and all branching sections 132 connected to the collecting section 131 .
[0046] Optionally, see Figure 3 , Figure 5 and Figure 7 In any second through-flow channel 13, the cross-sectional size of the collecting section 131 tends to increase in the direction away from the positive air outlet 110 and close to the bifurcation section 132 and the reverse air outlet 120; for any second through-flow channel 13, the cross-sectional size of each bifurcation section 132 tends to increase in the direction away from the collecting section 131 and close to the reverse air outlet 120.
[0047] In some embodiments, the positive air outlet 110 and the reverse air outlet 120 are disposed opposite to each other, and are respectively formed on two oppositely disposed side portions of the long strip or plate-shaped air guide structure 100. Figure 1 The air guide structure 100 includes a first cover plate 101 and a second cover plate 102 arranged at an interval. The first cover plate 101 and the second cover plate 102 are both long strip-shaped plate-like members and are arranged opposite to each other. The positive air outlet 110 includes a first side edge of the first cover plate 101 and a second side edge of the second cover plate 102. The reverse air outlet 120 includes a second side edge of the first cover plate 101 and a second side edge of the second cover plate 102. The first side edge of the first cover plate 101 is arranged opposite to the second side edge, and the first side edge of the second cover plate 102 is arranged opposite to the second side edge.
[0048] Furthermore, the air guide structure 100 further includes a guide rib group 103 disposed on the first cover plate 101 and / or the second cover plate 102, the guide rib group 103 includes a plurality of guide ribs spaced apart from each other, the first through-flow channel 11, the spoiler channel 12 and the second through-flow channel 13 are located between the first cover plate 101 and the second cover plate 102, and all three are formed between the guide rib group 103. The positive air outlet 1101 is formed between the first side edge of the first cover plate 101 and the first side edge of the second cover plate 102, and the reverse air outlet 1201 is formed between the second side edge of the first cover plate 101 and the second side edge of the second cover plate 102.
[0049] Optionally, in some embodiments, the guide rib group 103 is fixedly connected to the first cover plate 101 and the second cover plate 102, respectively, and the shapes of the first through-flow channel 11, the spoiler channel 12, and the second through-flow channel 13 are all fixed. In other embodiments, at least a portion of the guide rib group 103 can be 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 through-flow channel.
[0050] See also Figure 1-2 The pivot connection portion 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 portion 110 is equal to the distance from the pivot axis to the reverse air outlet portion 120.
[0051] Taking the air guide device installed in 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 to make the posture of the air guide structure 100 adapt to a specific blowing mode. In the first blowing mode, the positive air outlet 110 faces the room so that the positive air outlet 1101 is connected to the indoor space, and the reverse air outlet 120 faces the inside of the bathroom heater so that the reverse air outlet 1201 is connected to the internal air duct of the bathroom heater. In the second blowing mode, the positive air outlet 110 faces the inside of the bathroom heater so that the positive air outlet 1101 is connected 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 is connected to the indoor space.
[0052] Optionally, the first through-flow channel 11 corresponds to the spoiler channel 12 one by one, that is, any first through-flow channel 11 is matched with a spoiler channel 12, and the upstream section 111 of each first through-flow channel 11 is connected to the return section 122 of the spoiler channel 12 matched with the first through-flow channel 11. In other embodiments, at least one first through-flow channel 11 may also correspond to multiple spoiler channels 12, that is, the return sections 122 of the multiple spoiler channels 12 corresponding to the same first through-flow channel 11 all extend in a direction away from the return air outlet, and are all connected to the upstream section 111 of the first through-flow channel 11.
[0053] See also Figure 1-2 The guide rib group 103 is connected to the side of the first cover plate 101 close to the second cover plate 102 and / or the side of the second cover plate 102 close to the first cover plate 101, so that the first through-flow channel 11, the spoiler channel 12 and the second through-flow channel 13 are all formed in the gap between the first cover plate 101 and the second cover plate 102, and the diversion section 121 and the return section 122 of each spoiler channel 12 are located on the same side of the first through-flow channel 11 corresponding to the spoiler channel 12. Figure 3 The diversion section 121 and the return section 122 of the spoiler channel 12 are both located on the right side of the corresponding first through-flow channel 11 .
[0054] Furthermore, the first through-flow channel 11, the spoiler channel 12 and the second through-flow channel 13 occupy different positions in the extension direction of the pivot axis. With such arrangement, the air guide structure 100 has a reasonable structure, and the overall structure is thinner and flatter, which is more suitable for conventional air conditioning, bathroom heaters, fresh air blowers and other air dispatching devices, and can generate a flat blowing air beam.
[0055] Furthermore, there are multiple guide rib groups 103, each of which includes a plurality of guide ribs spaced apart from each other, and multiple guide rib groups 103 are spaced apart from each other along the length direction of the first cover plate 101 and the second cover plate 102, thereby forming multiple first through-flow channels 11 arranged in a row, multiple spoiler channels 12 arranged in a row, and multiple second through-flow channels 13 arranged in a row. Figure 1-2 , Figures 4 to 7 The first through-flow channels 11 correspond to the spoiler channels 12 one by one, and each spoiler channel 12 is located on the right side of the corresponding first through-flow channel 11 .
[0056] See also Figure 3 In some embodiments, each guide rib group 103 includes a through-flow guide rib 1031, a first spoiler rib 1032, a second spoiler rib 1033, and a diverter guide rib 1034. For any guide rib group 103, the through-flow guide rib 1031 and the first spoiler rib 1032 are arranged at intervals along the extension direction of the pivot axis, the second spoiler rib 1033 is located on one side of the first spoiler rib 1032 close to the through-flow guide rib 1031, and the diverter guide rib 1034 is located on the other side of the first spoiler rib 1032 away from the through-flow guide rib 1031. The first through-flow channel 11 is formed on a side of the through-flow guide rib 1031 close to the first spoiler rib 1032 and the second spoiler rib 1033 , a gap is provided between the first spoiler rib 1032 and the second spoiler rib 1033 for forming the through-flow channel 12 , and the second through-flow channel 13 is formed on a side of the first spoiler rib 1032 away from the first through-flow channel 11 .
[0057] Further, for any one of the guide rib groups 103, the number of the diverter guide ribs 1034 therein can be one or more, and each of the diverter guide ribs 1034 has a bifurcation section 132 on both sides. The diverter guide rib 1034 can include a flow blocking section extending in a curve, and the flow blocking section can be a strip structure extending in a wave shape, or a serrated strip structure. The flow blocking section can increase the resistance to the airflow, and when the air guide device is switched to the second gear blowing mode, the flow blocking section can produce a more significant deceleration effect on the second blowing airflow. Of course, the surface of the diverter guide rib 1034 in contact with the airflow can also be a plane.
[0058] Furthermore, the multiple first through-flow channels 11 respectively arrange the multiple positive air outlets 1101 formed by penetrating the positive air outlet portion 110 in sequence along the extension direction of the pivot axis, the multiple first through-flow channels 11 respectively arrange the multiple reverse air outlets 1201 formed by penetrating the reverse air outlet portion 120 in sequence along the extension direction of the pivot axis, and the multiple second through-flow channels 13 respectively arrange the multiple positive air outlets 1101 formed by penetrating the positive air outlet portion 110 in sequence along the extension direction of the pivot axis.
[0059] Further, for any second through-flow channel 13, the multiple bifurcated sections 132 therein respectively occupy different positions in the extension direction of the pivot axis, and these bifurcated sections 132 penetrate the reverse air outlet 120 to form multiple reverse air outlets 1201 arranged in sequence along the extension direction of the pivot axis. Specifically, when at least one second through-flow channel 13 includes three or more bifurcated sections 132, at least two flow diversion guide ribs 1034 are provided in the second through-flow channel 13, and these flow diversion guide ribs 1034 respectively occupy different positions in the extension direction of the pivot axis. With such a configuration, the wind guide structure 100 as a whole tends to be flatter and thinner, and the shape of the airflow beam formed is also flatter.
[0060] Furthermore, the upstream section 111 is formed between the through-flow guide rib 1031 and the first spoiler rib 1032, and the downstream section 112 is formed between the through-flow guide rib 1031 and the second spoiler rib 1033. The spoiler channel 12 also includes a bending section 123 formed between the first spoiler rib 1032 and the second spoiler rib 1033. The bending section 123 is bent and transitioned to and connected with the diverter section 121, and the bending section 123 is bent and transitioned to and connected with the return section 122. The diverter guide rib 1034 is located between the side of the first spoiler rib 1032 away from the first through-flow channel 11 and the through-flow guide rib 1031 of the next group of guide ribs 103. The through-flow guide rib 1031 can be a strip structure with uniform width, or a structure that gradually widens from the reverse air outlet 120 to the forward air outlet 110.
[0061] Optionally, in some embodiments, a diversion angle is formed between the diversion section 121 and the downstream section 112, see Figure 3 , the divergence angle is Figure 3 ∠γ indicates that the diversion angle is an acute angle and the opening of the diversion angle is away from the positive air outlet 110. In this way, whether the obstructed airflow flows from the downstream section 112 into the diversion section 121 or directly flows into the diversion section 121 that penetrates the positive air outlet 110, the diversion angle can make the obstructed airflow flow more smoothly and with less kinetic energy loss into the spoiler channel 12, which helps to obtain more obstructed airflow so as to fully interfere with or counteract the second blowing airflow.
[0062] Optionally, in some embodiments, a reflux angle is formed between the reflux section 122 and the upstream section 111, see Figure 3 , the reflow angle is Figure 3 ∠β is used to indicate that the reflow angle is an acute angle and the opening of the reflow angle faces the reverse air outlet 120. With such a configuration, in the second-gear blowing mode, the second blowing airflow in the first cross-flow channel 11 flows toward the reverse air outlet 120, and the obstruction airflow flowing from the reflow section 122 into the upstream section 111 has a backwash velocity component away from the reverse air outlet 120, so the obstruction airflow uses this backwash velocity component to counteract the second blowing airflow, thereby achieving low-speed blowing into the room; in the first-gear blowing mode, the first blowing airflow in the first cross-flow channel 11 will hardly or very little enter the reflow section 122, and even if a small amount of airflow enters the reflow section 122, the wind force and wind speed of the first blowing airflow will not be too much weakened, so the wind speed and wind force of the first blowing airflow are significantly greater than the wind speed and wind force of the second blowing airflow.
[0063] Optionally, in some embodiments, the minimum cross-sectional dimension of the upstream section 111 is greater than or equal to the maximum cross-sectional dimension of the downstream section 112. Figure 4-5 , the cross-sectional size of the upstream section 111 decreases from the reverse air outlet 120 to the downstream section 112, and the cross-sectional size of the downstream section 112 decreases from the upstream section 111 to the forward air outlet 110. This means that in the first blowing mode, the flow velocity and wind force of the first blowing airflow flowing through the first cross-flow channel 11 gradually increase, and in the second blowing mode, the flow velocity and wind force of the second blowing airflow flowing through the first cross-flow channel 11 gradually decrease.
[0064] Further, Figure 4-5 In the illustrated embodiment, the cross-sectional size of the second cross-flow channel 13 shows a decreasing trend along the flow velocity direction of the first blowing airflow, which means that in the first blowing mode, the flow velocity and wind force of the first blowing airflow flowing through the second cross-flow channel 13 gradually increase, while in the second blowing mode, the flow velocity and wind force of the second blowing airflow flowing through the second cross-flow channel 13 gradually weaken.
[0065] Optionally, in some embodiments, the cross-sectional size of the collecting section 131 tends to increase from the positive air outlet 110 to the bifurcation section 132, and the cross-sectional size of any bifurcation section 132 tends to increase from the collecting section 131 to 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 achieving the goal of significantly weakening the wind speed and wind force of the second blowing airflow flowing through the second through-flow channel 13.
[0066] In some embodiments, the positive air outlet 110 and the reverse air outlet 120 are arranged opposite to each other, and the flow velocity direction of the first blowing air flow is defined as: away from the reverse air outlet 120 and close to the positive air outlet 110; the flow velocity direction of the second blowing air flow is defined as: away from the positive air outlet 110 and close to the reverse air outlet 120.
[0067] 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. Figure 6-7 , the cross-sectional size of the diverter section 121 decreases from the positive air outlet 110 and / or the downstream section 112 to the return section 122, and the cross-sectional size of the return section 122 decreases from the diverter section 121 to the upstream section 111, so the cross-sectional size of the spoiler channel 12 gradually decreases along the flow velocity direction of the obstructing airflow, and the flow velocity of the obstructing airflow in the spoiler channel 12 gradually increases. This means that, compared with the obstructing airflow that has just flowed into the diverter section 121, the obstructing airflow that flows from the return section 122 into the upstream section 111 has a higher flow velocity and can form a larger backwash velocity component, so it can more forcefully and powerfully interfere with or counteract the second blowing airflow. In other embodiments, the cross-sectional size of the spoiler channel 12 remains unchanged along the flow velocity direction of the obstructing airflow.
[0068] The flow trajectory of the obstructed airflow passes through: the positive air outlet 110-the diverter section 121-the return section 122-the upstream section 111. In some embodiments, the spoiler channel 12 further includes a bending section 123, one end of the bending section 123 is connected to the diverter section 121, and the other end of the bending section 123 is connected to the return section 122. The flow trajectory of the obstructed airflow passes through: the positive air outlet 110-the diverter section 121-the bending section 123-the return section 122-the upstream section 111.
[0069] The utility model does not limit the length of the upstream section 111 and the downstream section 112, nor does it limit the specific shapes of the upstream section 111 and the downstream section 112. Regardless of whether the first-gear blowing mode or the second-gear blowing mode is enabled, the positions that the blowing airflow passes through in sequence when flowing are as follows:
[0070] When the first blowing air flow flows through the first cross-flow channel 11 , the gas first flows through the upstream section 111 and then flows through the downstream section 112 ; when the second blowing air flow flows through the first cross-flow channel 11 , the gas first flows through the downstream section 112 and then flows through the upstream section 111 .
[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.
[0072] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.
Claims
1. A wind guide device, characterized in that: It comprises an air guide structure (100) and a reversing unit connected to the air guide structure (100), The air guide structure (100) comprises a positive air outlet (110) and a reverse air outlet (120), and the reversing unit is used to drive the air guide structure (100) so that the positive air outlet (110) and the reverse air outlet (120) are respectively directed toward the indoor space under different blowing conditions; The air guide structure (100) is provided with at least one through-flow channel, and at least one of the through-flow channels comprises a collecting section (131) passing through the positive air outlet (110) and a plurality of branching sections (132) respectively passing through the reverse air outlet (120), and an end of the collecting section (131) relatively far from the positive air outlet (110) is connected to at least two of the branching sections (132).
2. The air guide device according to claim 1, characterized in that: The minimum value of the sum of the cross-sections of the plurality of branching sections (132) is greater than or equal to the maximum value of the cross-sectional dimension of the current collecting section (131).
3. The air guide device according to claim 1, characterized in that: The cross-sectional size of the collecting section (131) tends to increase in a direction away from the positive air outlet (110) and closer to the bifurcation section (132); and / or, The cross-sectional dimensions of at least one of the branching sections (132) tend to increase in a direction away from the collecting section (131) and closer to the reverse air outlet portion (120).
4. The air guide device according to claim 1, characterized in that: The air guide structure (100) comprises a first cover plate (101) and a second cover plate (102) which are arranged at intervals, and a guide rib group (103) arranged on the first cover plate (101) and / or the second cover plate (102); the through-flow channel is located between the first cover plate (101) and the second cover plate (102); the guide rib group (103) comprises at least one flow-dividing guide rib (1034); and each of the flow-dividing guide ribs (1034) has a bifurcation section (132) on both sides thereof.
5. The air guide device according to claim 4, characterized in that: The flow-dividing and guiding rib (1034) comprises a flow-blocking section extending in a curve.
6. The air guide device according to any one of claims 1 to 5, characterized in that: The air guide structure (100) further comprises a pivot connection portion (130), wherein the pivot connection portion (130) has a pivot axis located between the positive air outlet portion (110) and the reverse air outlet portion (120), so that the air guide structure (100) is driven by the reversing unit to rotate around the pivot axis.
7. The wind guide device according to claim 6, characterized in that: The positive air outlet (110) and the reverse air outlet (120) are respectively formed on two oppositely disposed side portions of the air guide structure (100), and the distance from the pivot axis to the positive air outlet (110) is equal to the distance from the pivot axis to the reverse air outlet (120).
8. The air guide device according to claim 6, characterized in that: There are multiple through-flow channels, and the multiple through-flow channels are arranged in sequence along the extension direction of the pivot axis.
9. The air guide device according to claim 6, characterized in that: The plurality of branching sections (132) respectively occupy different positions in the extension direction of the pivot axis, and penetrate the reverse air outlet portion (120) to form a plurality of reverse air outlets (1201) arranged in sequence along the extension direction of the pivot axis.
10. An air dispatching device, characterized in that: It comprises a fuselage and the air guide device according to any one of claims 1 to 9, wherein the air guide structure (100) is movably arranged on the fuselage, and the reversing unit is used to drive the air guide structure (100) to move relative to the fuselage, so that the positive air outlet (110) and the reverse air outlet (120) are respectively directed toward the indoor space under different blowing conditions.