CN111023290B - Sweep wind blade, air conditioning system and air conditioner - Google Patents

Sweep wind blade, air conditioning system and air conditioner Download PDF

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Publication number
CN111023290B
CN111023290B CN201911337630.7A CN201911337630A CN111023290B CN 111023290 B CN111023290 B CN 111023290B CN 201911337630 A CN201911337630 A CN 201911337630A CN 111023290 B CN111023290 B CN 111023290B
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China
Prior art keywords
blade
wind
blade portion
segment
face
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CN201911337630.7A
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CN111023290A (en
Inventor
林辉
周孝华
徐志亮
周伟峰
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TCL Air Conditioner Zhongshan Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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Publication of CN111023290A publication Critical patent/CN111023290A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The invention relates to a wind sweeping blade, an air conditioning system and an air conditioner. The first blade part and the second blade part are arranged, and the second blade part is provided with the air hole, so that the sweeping blade has better effect when being used for guiding airflow to flow while realizing the soft wind outlet function of the air conditioner.

Description

Sweep wind blade, air conditioning system and air conditioner
Technical Field
The invention relates to the technical field of air conditioner structures, in particular to a wind sweeping blade, an air conditioner system applying the wind sweeping blade and an air conditioner applying the wind sweeping blade.
Background
With the development of the air conditioning industry and the continuous improvement of the living standard of people, consumers put forward higher requirements on the aspects of noise, comfort, appearance and the like of the air conditioner. The swing blade in the traditional air conditioner can realize the left-right or/and up-down wind swinging effect, and a plurality of wind dispersing holes are formed in the swing blade to disperse the wind blown out by the air conditioner, so that the soft wind is blown out. However, this design does not provide good airflow flow.
Therefore, the prior art still needs to be improved and developed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a wind sweeping blade, an air conditioning system comprising the wind sweeping blade and an air conditioner comprising the wind sweeping blade. The sweeping blade comprises a first blade part and a second blade part, wherein the second blade part is provided with a wind hole, and the sweeping blade has better effect when used for guiding airflow to flow.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a sweep wind blade, wherein, sweep wind blade includes first blade portion and the second blade portion that links to each other, the wind hole has been seted up to the second blade portion.
Optionally, the first blade portions are provided at a windward end of the second blade portions for directing airflow past the second blade portions.
Optionally, the first blade portion comprises a first end face and a second end face; the second blade portion is arranged flatly and comprises an upper end face; the first end face is connected with the upper end face, and the vertical distance from a point on the first end face to the plane where the upper end face is located increases with the increase of the distance from the point on the first end face contour line to the intersection point of the first end face contour line and the plane where the upper end face is located.
Optionally, the contour line of at least one of the first end face and the second end face is an arc line.
Optionally, the contour line of the first end face is an arc line, and an included angle between a tangent of any point on the contour line of the first end face and the plane of the upper end face is 0 ° to 75 °.
Optionally, the contour line of the first end face includes a first sub-arc line segment and a second sub-arc line segment, the second sub-arc line segment connects the first sub-arc line segment and the second blade portion, and an included angle between a tangent of any point on the first sub-arc line segment and a plane where the upper end face is located is 20 ° to 60 °.
Optionally, the first blade portion is smoothly connected to the second blade portion, and the first blade portion extends from an end of the second blade portion in a curved manner.
Optionally, the first blade portion includes a first end surface and a second end surface, and a contour line of the first end surface is an arc line.
Optionally, an included angle between any tangent of the upper point of the first end face contour line and a tangent of an intersection point of the first end face contour line and the second blade part is 0-75 °.
Optionally, the first end face contour line includes a first sub-arc line segment and a second sub-arc line segment, the second sub-arc line segment connects the first sub-arc line segment and the second blade portion, and an included angle between any point tangent on the first sub-arc line segment and a tangent at an intersection point of the first end face contour line and the second blade portion is 20 ° to 60 °.
Optionally, a ratio of a length of the first blade portion projected on a plane of an upper end face of the second blade portion to a length of the sweep blade projected on the plane of the upper end face is 0.25-0.6.
Optionally, the first end face projection of the first blade portion is in the planar contour line of the upper end face of the second blade portion includes consecutive first straight line segment, first arc segment, second straight line segment, second arc segment and third straight line segment, the first straight line segment is back to the one end of the first arc segment with the second blade portion links to each other, the third straight line segment is back to the one end of the second arc segment with the second blade portion links to each other.
Optionally, the first straight line segment is parallel to the second straight line segment, and the length of the first straight line segment is greater than that of the third straight line segment; the first arc line segment and the second arc line segment are both minor arcs.
Optionally, the second blade portion is provided with a first wind hole penetrating through the second blade portion;
optionally, the first blade portion has a second wind hole, and the density of the second wind hole gradually decreases from the end where the first blade portion and the second blade portion are connected to each other to the other end, or the density of the second wind hole at the end where the first blade portion is close to the second blade portion is higher than the density of the second wind hole at the other end.
Optionally, a ratio of a sum of hole areas of the first wind hole and the second wind hole to the area of the wind sweeping blade is 0.2-0.4.
Optionally, the wind sweeping blade is provided with a rotating shaft, and the rotating shaft is used for driving the wind sweeping blade to rotate.
The present invention also proposes an air conditioning system for an air conditioner, comprising:
the wind sweeping blade comprises a first blade part, a second blade part and a third blade part, wherein the first blade part is arranged at the windward end of the second blade part and is used for guiding airflow to pass through the second blade part; an included angle between a tangent of any point on a first sub-arc line segment on the first end face contour line of the first blade part and a plane where the upper end face of the second blade part is located is 20-60 degrees, or an included angle between a tangent of any point on the first sub-arc line segment on the first end face contour line of the first blade part and a tangent of a point where the first end face contour line and the second blade part are intersected is 20-60 degrees;
the control module is used for sending a driving instruction to control the plurality of wind sweeping blades to rotate to a target angle;
and the driving module is used for receiving a driving instruction to drive the plurality of wind sweeping blades to rotate to the target angle.
Optionally, the difference between the target angle and the included angle between the tangent of any point on the first sub-arc line segment and the upper end surface, or the difference between the target angle and the included angle between the tangent of any point on the first sub-arc line segment and the tangent of the intersection point of the first end surface contour line and the second blade portion is N, -10 degrees and less than or equal to N and less than or equal to 20 degrees.
The invention also provides an air conditioner, which comprises the wind sweeping blade; the first blade portion is disposed at a windward end of the second blade portion for directing airflow over the second blade portion.
In conclusion, the invention has the following beneficial effects:
the wind sweeping blade comprises a first blade part and a second blade part, wherein the second blade part is provided with a wind hole. The wind sweeping blade has better effect when being used for guiding airflow to flow while realizing the function of soft wind outlet of the air conditioner.
Drawings
FIG. 1 is a schematic structural view of a wind sweeping blade according to an embodiment;
FIG. 2 is a schematic view of a wind sweeping blade according to an embodiment;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a further cross-sectional view taken along line A-A of FIG. 1;
fig. 5 is a projection view of the wind sweeping blade projected onto the upper end surface in one embodiment.
FIG. 6 is a schematic diagram of a partial structure of an air conditioner according to an embodiment;
FIG. 7 is a perspective view showing the structure of an air conditioner part according to an embodiment;
FIG. 8 is a view illustrating a state of use of the wind sweeping blade according to an embodiment;
FIG. 9 is a diagram of another state of the wind sweeping blade according to an embodiment.
Description of the symbols of the drawings: 1. a first blade section; 2. a second blade portion; 11. a first end face; 12. a second end face; 201. an upper end surface; 111. a first sub-arc segment; 112. a second sub-arc segment; 101. a first straight line segment 102, a first arc segment; 103. a second straight line segment; 104. a second arc segment; 105. a third straight line segment; 106. a first air vent; 107. a second air hole; 001. a fan housing; 100. an air duct member; 110. an air duct outlet; 108. a clamping block; 109. a fixed seat; 120. an air outlet grille; 121. a card slot; 122. a fixing sheet; 200. an upper and lower wind sweeping assembly; 214. a rotating shaft; 215. rotating the rod; 216. a connecting shaft; 220. a volute tongue; 221. a shaft hole; 230. a connecting rod; 240. a drive motor; 300. left and right wind sweeping assemblies.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a wind sweeping blade, an air conditioning system comprising the wind sweeping blade and an air conditioner comprising the wind sweeping blade.
It should be noted that the wind-sweeping blade of the present invention may be an upper wind-sweeping blade or a lower wind-sweeping blade or a left wind-sweeping blade or a right wind-sweeping blade of an air conditioner, and may be applied to a cabinet type air conditioner, a wall-mounted air conditioner, etc., and the wind-sweeping blade may also be applied to other devices requiring wind sweeping. The following description will be given taking an indoor unit of a wall-mounted air conditioner as an example.
In the present invention, as shown in fig. 1 to 4, the wind sweeping blade includes a first blade portion 1 and a second blade portion 2 connected to each other, and the second blade portion is provided with a wind hole.
Specifically, the first blade portion 1 and the second blade portion 2 may be connected seamlessly, or may be integrally formed, or may have a distinct line at the connection point of the first blade portion and the second blade portion to distinguish the first blade portion 1 from the second blade portion 2, and the like, and the connection of the first blade portion 1 and the second blade portion 2 is not limited in any way by the present invention. The wind sweeping blade comprises a first blade part and a second blade part, wherein the second blade part is provided with a wind hole, so that the wind sweeping blade has a better effect when being used for guiding airflow to flow while realizing the soft wind outlet function of the air conditioner.
The first blade portion 2 is arranged at the windward end of the second blade portion 2 for guiding the airflow past the second blade portion 2. The first blade portion 1 is provided at the windward end of the second blade portion 2, which is the end of the wind sweeping blade that comes into contact with the wind first in the direction against the wind flow. The first blade part 1 is used for guiding air flow to pass through the second blade part 2 and guiding the air flow, so that the wind sweeping blade achieves the function of realizing the soft wind air outlet of the air conditioner, can realize a better air flow guiding function and ensures the wind sweeping effect of the air conditioner.
On the basis of the above technology, the present invention is exemplified with reference to the accompanying drawings to better explain the beneficial effects of the structure of the present invention.
Example one
Referring to fig. 2 to 3, in order to improve the airflow guiding function of the wind sweeping blade, the first blade part 1 includes a first end surface 11 and a second end surface 12; the second blade part 2 is arranged flat, and the second blade part 2 comprises an upper end surface 201; the first end surface 11 is connected with the upper end surface 201, and the vertical distance from a point on the first end surface 11 to the plane of the upper end surface 201 increases with the distance from a point on the contour line of the first end surface 11 to the intersection point of the contour line of the first end surface and the plane of the upper end surface.
The perpendicular distance from the point on the first end surface 11 to the plane of the upper end surface 201 increases with the increase of the distance from the point on the contour line of the first end surface 11 to the intersection point of the first end surface contour line and the plane of the upper end surface, so that the first blade part 1 tilts relative to the second blade part 2 in the windward direction, the air flow is guided to pass through the second blade part 2, and the air flow is guided out by the second blade part 2. The first blade portion 1 may be straight, with an angle between the first blade portion 1 and the second blade portion 2 when the first blade portion 1 is straight; the first blade part 1 can also be a first blade part 2 which is formed by connecting a plurality of straight plates end to end and has the function of guiding airflow and is tilted; in this embodiment, the outer contour of the first blade portion 1 is a curved line, and one end of the curved line is connected to the second blade portion 2, and at this time, the upper end surface 201 of the second blade portion 2 is tangent to the first end surface 11 of the first blade portion 1. The first blade part 1 tilting to the windward direction has a good airflow guiding function. The present invention is not limited to the specific configuration of the first blade section 1, and may be such that the perpendicular distance from the point on the first end surface 11 to the plane of the upper end surface 201 increases as the distance from the point on the contour line of the first end surface 11 to the intersection point of the contour line of the first end surface and the plane of the upper end surface increases.
Specifically, as shown in fig. 3, the perpendicular distance from the point on the first end surface 11 to the plane of the upper end surface 201 increases with the distance from the point on the contour line of the first end surface 11 to the intersection point of the first end surface contour line and the plane of the upper end surface, the perpendicular distance from the point on the first end surface 11 to the plane of the upper end surface 201 is L, the distance from the point on the contour line of the first end surface 11 to the intersection point d of the first end surface contour line and the plane of the upper end surface is L, and the perpendicular distance from the point a to the plane of the upper end surface 201 is L1The distance from the point a to the intersection point d of the first end face contour line and the plane of the upper end face is L1(ii) a The vertical distance from the point b to the plane of the upper end face 201 is l2And the distance from the point b to the intersection point d of the first end surface contour line and the plane of the upper end surface is L2(ii) a The vertical distance from the point c to the plane of the upper end surface 201 is l3And the distance from the point c to the intersection point d of the first end surface contour line and the plane of the upper end surface is L3. When l is1Greater than l2，l2Greater than l3When L is1Greater than L2，L2Greater than L3。
Further, the contour line of at least one of the first end surface 11 and the second end surface 12 is an arc line. When the contour line of the first end surface 11 is an arc line, the airflow formed by wind gently passes through the second blade part 2 along the curve of the arc line, and the arc line has a better streamline to reduce the resistance of the wind and reduce the noise caused by the flowing of the airflow. When the broad line of the second end face 12 is an arc line, the second end face 12 serves as a side wall of an air duct formed by adjacent blades, and the side wall also has a better streamline, so that the wind resistance can be better reduced, and the noise caused by airflow flowing can be reduced. The contour line of at least one of the first end surface 11 and the second end surface 12 is an arc line, that is, the contour line of the first end surface 11 may be an arc line, the contour line of the second end surface 12 may be an arc line, or the contour lines of both end surfaces may be arc lines, which is not limited in the present invention. In this embodiment, the contour lines of both end faces are arcs.
When the contour line of the first end surface 11 is an arc line, an included angle between a tangent line of any point on the contour line of the first end surface 11 and the plane of the upper end surface 201 is 0-75 °, that is, an included angle between a tangent line of a point on the first end surface 11 and the plane of the upper end surface 201 may be 75 ° at most, or less than 75 °, but is in a range of 0 ° to 75 °. When the included angle between the tangent line of any point on the contour line of the first end surface 11 and the plane of the upper end surface 201 is 0-75 degrees, the contour line of the first end surface 11 is a minor arc, the tilting of the first end surface 11 cannot be too bent to prevent the airflow from flowing to the second blade part 2 along the first end surface 11, the airflow can be guided well, and the airflow guiding function of the wind sweeping blade is realized.
Further, as shown in fig. 4, the contour line of the first end surface 11 includes a first sub-arc line segment 111 and a second sub-arc line segment 112, and the first sub-arc line segment 111 and the second sub-arc line segment 112 are separated by a dotted line in fig. 4, but the division of the first sub-arc line segment 111 and the second sub-arc line segment 112 is not limited in the present invention. The second sub-arc segment 112 connects the first sub-arc segment 111 and the second blade portion 2, and an included angle α between a tangent k of any point on the first sub-arc segment 111 and a plane on which the upper end surface 201 is located is 20-60 °. The first sub-arc line segment 111 is an outline of the windward end of the first blade 1, and when an included angle α between a tangent k of any point on the first sub-arc line segment 111 and the plane of the upper end surface 201 is 20 ° to 60 °, that is, the included angle α between the tangent k of any point on the first sub-arc line segment 111 and the plane of the upper end surface 201 is between 20 ° and 60 °. The first blade part 1 can well guide airflow to pass through the second blade part 2, so that the wind sweeping blade has a good airflow guiding function. In the present invention, an included angle between a tangent of a point on the first sub-arc segment 111 and a plane of the upper end surface 201 may be 20 ° or 60 °.
In order to achieve a better airflow guiding function, in this embodiment, the ratio of the length of the first blade portion 1 projected onto the plane where the upper end surface 201 is located to the length of the windsweeper blade projected onto the plane where the upper end surface 201 is located is 0.25-0.6, that is, the ratio of the length of the first blade portion 1 projected onto the plane where the upper end surface 201 is located to the length of the windsweeper blade projected onto the plane where the upper end surface 201 is located is 0.25-0.6. Within the range, the first blade portion 1 can guide the airflow well, and the second blade portion 2 can guide the airflow well. When the ratio of the length of the first blade part 2 projected on the plane of the upper end surface 201 to the length of the sweeping blade projected on the plane of the upper end surface 201 is 0.25, the first blade part 1 guides the airflow to pass through the second blade part 2, and the second blade part 2 disperses the airflow guided by the first blade part 1, so that the sweeping blade has an airflow guiding function and is good in no wind feeling. When the ratio of the length of the first blade part 1 projected on the plane of the upper end surface 201 to the length of the sweeping blade projected on the plane of the upper end surface 201 is 0.6, similarly, the first blade part 1 has a good airflow guiding function, and the second blade part 2 disperses the airflow, so that the sweeping blade has no wind sensation and is good. Specifically, the ratio of the length of the first blade portion 1 projected on the plane where the upper end surface 201 is located to the length of the windsweeper blade projected on the plane where the upper end surface 201 is located may also be in the range of 0.05 to 0.8, and may be specifically determined according to actual needs.
As shown in fig. 5, it can be known that the contour line of the plane where the first end surface 11 projects on the upper end surface 201 includes a first straight line segment 101, a first arc line segment 102, a second straight line segment 103, a second arc line segment 104 and a third straight line segment 105 which are connected in sequence, wherein one end of the first straight line segment 101, which faces away from the first arc line segment 102, is connected to the second blade portion 2, and one end of the third straight line segment 105, which faces away from the second arc line segment 104, is connected to the second blade portion 2. The first arc segment 102 and the second arc segment 104 form a chamfer of the wind sweeping blade. The chamfer is convenient for sweep the manufacturing of wind blade on the one hand, and on the other hand contour line makes for curved chamfer and sweeps wind blade and has better streamline, can reduce the resistance of wind in the wind-guiding.
In order to further reduce the resistance generated by the wind sweeping blade in the process of guiding the airflow, the first straight line segment 101 is parallel to the second straight line segment 103, and the length of the first straight line segment 101 is greater than that of the third straight line segment 104; the first arc segment 102 and the second arc segment 104 are both minor arcs. It can be known that the chamfer formed by the first arc segment 102 protrudes in the windward direction, and the length of the first straight segment 101 is greater than that of the third straight segment 104, so that the side formed by the second straight segment 103 is inclined from the first arc segment 102 to the second arc segment 104. The first blade 1 has a better streamline shape, when the first blade 1 guides the airflow, the chamfer formed by the first arc line segment 102 contacts the airflow first, and the airflow enters along the first end face 11, so that the resistance of the wind can be reduced, and the noise generated by the wind entering along the first end face 11 can be reduced to a certain extent.
It can be understood that the second blade portion 2 is provided with a first wind hole 106 penetrating the second blade portion 2. In order to realize the airflow guiding function of the wind sweeping blade and enable the wind sweeping blade to have good wind-free feeling, the first wind hole 106 penetrating through the second blade part 2 is formed in the second blade part 2, so that airflow can be dispersed through the first wind hole 106 when flowing through the second blade part 2, and the wind sweeping blade has good wind-free feeling.
In order to further improve the windless feeling of the sweeping blade, the first blade 1 is provided with the second wind holes 107 penetrating the first blade, and the density of the second wind holes 107 gradually decreases from the end where the first blade 1 and the second blade 2 are connected to each other toward the other end, or the density of the second wind holes 107 at the end where the first blade 1 is close to the second blade 2 is higher than the density of the second wind holes 107 at the other end. It is understood that the density of the second wind holes 107 refers to the number of the second wind holes 107 per unit area or the ratio of the area occupied by the hole area of the second wind holes 107 per unit area. In the present embodiment, the areas of the single second air holes 107 are all equal, and the density of the second air holes 107 refers to the number of the second air holes 107 in a unit area. The density of the second wind holes 107 decreases gradually from the end where the first blade portion 1 and the second blade portion 2 are connected to each other to the other end, and the density of the second wind holes 107 may be zero at the minimum as the density of the second wind holes 107 decreases toward the windward end, or the density of the second wind holes 107 may be higher at the end of the first blade portion 1 near the second blade portion 2 than at the other end of the second wind holes 107. The second air holes 107 have a function of diffusing at least a part of the air flow flowing through the first blade 1, so that the first blade 1 has an air flow guiding function and the non-wind feeling of the wind sweeping blade is improved. In this embodiment, the second wind holes 107 at the end of the first blade portion 1 facing the wind have a density of zero, forming a hole-free region, which facilitates the first blade portion 1 to guide the airflow through the second blade portion 2.
Further, in order to enhance the non-wind feeling of the wind sweeping blade, the ratio of the sum of the hole areas of the first wind holes 106 and the second wind holes 107 to the area of the wind sweeping blade is 0.2-0.4, that is, the ratio of the sum of the hole areas of the first wind holes 106 and the second wind holes 107 to the area of the wind sweeping blade is in the range of 0.2 to 0.4, and when the area of the wind holes of the wind sweeping blade is in the range, the non-wind feeling and the airflow guiding function of the wind sweeping blade are better. The ratio of the sum of the hole areas of the first wind hole 106 and the second wind hole 107 to the area of the sweeping blade can also be in the range of 0.1 to 0.6, and the setting of the ratio can be determined according to actual needs.
In this embodiment, the wind-sweeping blade is provided with a rotating shaft 214, and the rotating shaft 214 is used for driving the wind-sweeping blade to rotate. Specifically, when the wind sweeping blade is applied to an air conditioner, or applied to a household appliance with a wind sweeping function, or applied to a mechanical device with a wind sweeping function, the wind sweeping blade is connected with the driving mechanism through the rotating shaft 214, and the driving mechanism rotates to drive the rotating shaft to rotate, so that the wind sweeping blade is driven to rotate. In the present embodiment, the rotating shaft 214 is disposed at the side end of the wind sweeping blade, and the rotating shaft is disposed at the position where the first blade portion 1 meets the second blade portion 2, so that the rotating shaft 214 is convenient for the driving mechanism to drive the wind sweeping blade to rotate on the one hand, and is convenient for the first blade portion 1 to control the rotation angle of the first blade portion 1, thereby being convenient for the first blade portion 1 to control the direction of the airflow on the other hand.
Example two
The first blade portion 1 is connected to the second blade portion 2, and the first blade portion 1 extends curvedly from an end portion of the second blade portion 2. In particular, the first blade portion 1 is curved towards the windward end, facilitating the first blade portion 1 to direct the airflow past the second blade portion 2. The curved extension may be understood as a curve of a curve, a curve of multiple line segments joined end to end, or the like. The shape of the second blade portion 2 is not limited in the present invention, but in the present embodiment, the second blade portion 2 is curved and curved, and the second blade portion 2 extends in a curved direction opposite to the first blade portion 1, so that the profile of the wind sweeping blade is "S" shaped, and the wind sweeping blade has a centrosymmetric pattern. When the first blade portion 1 guides the airflow to pass through the second blade portion 2, at least a part of the airflow is dispersed through the first air holes 106, and the remaining airflow will flow through the whole second blade portion 2, and when the second blade portion 2 is curved, the second blade portion 2 has a better airflow guiding function, and further, when the second blade portion 2 is curved, the second blade portion 2 has a better streamline, so that the resistance of the wind can be reduced.
Further, the first blade 1 includes the first end surface 11 and the second end surface 12, and the contour line of the first end surface 22 is an arc line, and the arc line has a better streamline, which can reduce the resistance of the airflow. In this embodiment, the contour line of the second end face 12 is also an arc line, and the vertical distances from any point on the first end face 11 to the second end face 12 are all equal, that is, the thicknesses of any point on the first blade 1 are all equal, and the thicknesses of the first blade 1 are even. The wind sweeping blades with uniform thickness are easy to drive when rotating and balance when driving. Furthermore, when the material of the wind sweeping blade is plastic, the cooling speed of each position of the wind sweeping blade with uniform thickness is the same in the injection molding process, and the phenomenon of nonuniform shrinkage of an injection molding part of the wind sweeping blade can be reduced. The shape of the contour line of the second end face 12 is not limited at all, and the technical purpose of the invention can be achieved.
Further, the included angle between any tangent of the upper point of the contour line of the first end surface 11 and the tangent of the intersection point of the contour line of the first end surface 11 and the second blade part 2 is 0-75 °, that is, the included angle between any tangent of the upper point of the contour line of the first end surface 11 and the tangent of the intersection point of the contour line of the first end surface 11 and the second blade part 2 is 75 ° at most, and may also be smaller than 75 °, but is within the range of 0 ° to 75 °. When the included angle between any one tangent line of the upper point of the contour line of the first end face 11 and the tangent line of the intersection point of the contour line of the first end face 11 and the second blade part 2 is 0-75 degrees, the contour line of the first end face 11 is a minor arc, the tilting of the first end face 11 cannot be bent too much to prevent air flow from flowing to the second blade part 2 along the first end face 11, the air flow can be guided well, and the air flow guiding function of the wind sweeping blade is achieved.
Further, the contour line of the first end surface 11 includes a first sub-arc line segment 111 and a second sub-arc line segment 112, the second sub-arc line segment 112 connects the first sub-arc line segment 111 and the second blade portion 2, and an included angle between any tangent line of the first sub-arc line segment 111 and a tangent line of an intersection point of the contour line of the first end surface 11 and the second blade portion 2 is 20 ° to 60 °. The first sub-arc line segment 111 is a profile line of the windward end of the first blade part 1, and when an included angle between any tangent of any point on the first sub-arc line segment 111 and a tangent of a point where the first end surface 11 is located and the second blade part 2 is 20-60 degrees, that is, an included angle between any tangent of any point on the first sub-arc line segment 111 and a tangent of a point where the first end surface 11 is located and the second blade part 2 is located is 20-60 degrees. The first blade part 1 can well guide airflow to pass through the second blade part 2, so that the wind sweeping blade has a good airflow guiding function. In the present invention, an included angle between any tangent of the first sub-arc segment 111 and a tangent of an intersection point of the first end face contour line and the second blade portion 2 may be 20 ° or 60 °.
The present invention also includes an air conditioning system for an air conditioner, comprising: the device comprises a wind sweeping blade, a control module and a driving module.
As mentioned above, the first blade portion is arranged at the windward end of the second blade portion for guiding the airflow through the second blade portion; the included angle between the tangent of any point on the first sub-arc line segment and the plane where the upper end face is located is 20-60 degrees, or the included angle between the tangent of any point on the first sub-arc line segment and the tangent of the intersection point of the first end face contour line and the second blade portion is 20-60 degrees. And the control module is used for sending a driving instruction to control the plurality of wind sweeping blades to rotate to a target angle. And the driving module is used for receiving a driving instruction to drive the plurality of wind sweeping blades to rotate to the target angle.
The control module includes: the wind sweeping blade driving device comprises a processor, a storage and a communication bus, wherein the storage stores a program for driving the wind sweeping blades to rotate, the processor sends a driving instruction through the communication bus, and a driving mechanism receives the driving instruction and rotates according to the program stored in the storage. The processor firstly receives a driving instruction sent by a user, then processes the driving instruction and sends the processed driving instruction to the driving mechanism. In this embodiment, the driving mechanism includes a motor and a crank, and the driving mechanism is prior art and will not be described herein again.
Further, the difference between the target angle and the included angle between the tangent of any point on the first sub-arc line segment 111 and the plane of the upper end surface 201, or the difference between the target angle and the included angle between the tangent of any point on the first sub-arc line segment 111 and the tangent of the intersection point of the first end surface 11 contour line and the second blade part 2 is N-10 degrees or more and 20 degrees or less. It is understood that the rotation in the direction in which the first blade part 1 extends in a curved manner is a positive number of the rotation angle of the wind sweeping blade, and vice versa. When the air conditioning system is applied to an air conditioner, and the air conditioner is in an unopened state, as shown in fig. 8, the upper end surfaces 201 of the air sweeping blades are all in the same plane or the tangent line of the intersection point of the contour line of the first end surface 11 and the second blade part 2 is on the same straight line, and shields the air duct outlet of the air conditioner. Referring to fig. 8 again, when the wind sweeping blade rotates clockwise, the wind sweeping blade shown in fig. 9 is obtained, the rotation angle is positive, the rotation angle is 90 ° - β, and β is an included angle between the upper end surface of the wind sweeping blade after the wind sweeping blade rotates and a vertical line of the upper end surface of the wind sweeping blade when the air conditioner is in an unopened rotating state. N is 90-beta-alpha, when the value of N is in the range of-10-20 degrees, the rotating angle of the wind sweeping blade can realize better airflow guiding and the wind dispersing effect is good. As shown in fig. 8-9, in practical applications, the wind sweeping blade can be driven by the driving mechanism to rotate in a reciprocating manner, and when the wind sweeping blade performs the reciprocating movement in a circulating manner, the target angle is an included angle between the upper end surface 201 of the wind sweeping blade rotating in real time and the upper end surface of the wind sweeping blade when the air conditioner is not started. The value of N can also be in the range of-30 degrees to 45 degrees, and the specific value can be determined according to actual needs.
As shown in fig. 6 to 7, the present invention further provides an air conditioner, which includes the above-mentioned wind sweeping blade, and the first blade portion is disposed at the windward end of the second blade portion for guiding the airflow through the second blade portion.
Specifically, the air conditioner 001 includes an air duct member 100, and the air duct member 100 includes the above-described wind sweeping blade. An upper and lower wind sweeping assembly 200 is disposed at the wind duct outlet 110 of the wind duct component 100, and the upper and lower wind sweeping assembly 200 includes a mounting portion and a plurality of wind sweeping blades sequentially disposed on the mounting portion.
According to the invention, the wind sweeping blade with the wind hole is arranged at the position of the outlet 110 of the wind channel, and when the wind sweeping blade is closed, the high-speed main air flow blown out from the wind channel component 100 is scattered into the turbulent low-speed air flow by the wind hole, so that the direct blowing of the air conditioner is avoided, the air conditioner blows soft wind, the soft wind effect can be realized, and the normal wind outlet of the air conditioner can be ensured.
Optionally, the mounting portion includes a volute tongue 220 disposed inside the air duct outlet 110 (on a side of the air duct outlet away from the air outlet grille), the plurality of wind sweeping blades are disposed along a length direction of the volute tongue 220, and the wind sweeping blades are rotatably connected to the volute tongue 220. The up-down sweeping assembly 200 further includes a link 230 disposed inside the volute tongue 220, the link 230 being connected to the plurality of sweeping blades. The volute tongue 220 is arranged in a strip shape, a plurality of wind sweeping blades are arranged along the length direction of the volute tongue 220, and the wind sweeping blades are rotatably connected to the volute tongue 220. The upper and lower wind sweeping assemblies 200 further comprise a connecting rod 230 arranged at the inner side of the volute tongue 220, and the connecting rod 230 is connected to the plurality of wind sweeping blades, so that the plurality of wind sweeping blades are driven to rotate simultaneously through the connecting rod 230.
The volute tongue 220 is provided with a shaft hole 221, one side of the wind sweeping blade is provided with a rotating shaft 214 penetrating the shaft hole 221, and the wind sweeping blade penetrates the volute tongue 220 and is connected with the connecting rod 230. That is, the shaft hole 221 is provided to allow the wind sweeping blade to pass through the volute tongue 220 and be connected with the connecting rod 230. In one embodiment, the shaft 214 is integrally formed with the wind-sweeping blade.
Optionally, a connecting hole is formed in the connecting rod 230, a rotating rod 215 is disposed at the front end of the rotating shaft 214, one end of the rotating rod 215 is connected to the rotating shaft 214, a connecting shaft 216 rotatably connected to the connecting hole is disposed at the other end of the rotating rod 215, and the rotating rod 215 is rotatably connected to the connecting rod 230 through the connecting shaft 216.
When the connecting rod 230 moves along the length direction of the volute tongue 220, the rotating rod 215 is driven to rotate around the rotating shaft 214 through the matching of the connecting shaft 216 and the connecting hole, so that the wind sweeping blade rotates along with the rotating shaft 214 at the same time, the action that the connecting rod 230 drives the wind sweeping blade to rotate is completed, and the linear motion of the connecting rod 230 is converted into the circular motion of the wind sweeping blade.
One end of the connecting rod is provided with a driving motor 240, the driving motor 240 drives the connecting rod 230 to move along the length direction of the volute tongue 220, and the connecting rod 230 drives the plurality of wind sweeping blades to rotate simultaneously. The driving motor 240 is preferably a stepping motor, and the moving distance of the connecting rod 230 is precisely controlled by the stepping motor, so that the rotation angle of the wind sweeping blade is precisely controlled.
Optionally, an air outlet grille 120 is disposed at the air duct outlet 110, the air outlet grille 120 is connected to the outer side of the air duct outlet 110 in a clamping manner, and the air outlet grille 120 covers the outer side of the upper and lower air sweeping assemblies 200.
Specifically, a clamping block 108 is arranged on the outer side of the air duct outlet 110, a clamping groove 121 which is connected with the clamping block 108 in a clamping manner is arranged on the side surface of the air outlet grille 120, and when the air outlet grille 120 is assembled, the clamping block 108 is inserted into the clamping groove 121 to complete the clamping connection between the air outlet grille 120 and the air duct outlet 110, so that the air outlet grille 120 is convenient to detach and install. In other embodiments, the air outlet grille 120 and the air duct outlet 110 may also be connected by a magnet assembly.
Further, a fixing plate 122 is arranged on the air outlet grille 120, a fixing seat 109 is arranged on the side surface of the air duct outlet 110, the fixing seat 109 and the fixing plate 122 are correspondingly arranged, and the fixing seat 109 and the fixing plate 122 are detachably connected through screws. After the air outlet grille 120 is fastened to the air duct outlet 110, the air outlet grille 120 is fixed to the air duct outlet 110.
Optionally, a left-right air sweeping assembly 300 is disposed between the air outlet grille 120 and the upper-lower air sweeping assembly 200, and the left-right air sweeping assembly 300 is rotatably connected to the air outlet grille 120. The left and right air sweeping functions of the air outlet flow of the air conditioner are realized through the left and right air sweeping assemblies 300. It should be noted that any structure capable of sweeping the air flow left and right can be applied to the present invention.
The invention relates to a wind sweeping blade, which comprises a first blade part 1 and a second blade part 2 which are connected, wherein the first blade part 1 is arranged at the windward end of the second blade part 2 and is used for guiding airflow to pass through the second blade part 2. The first blade part 1 guides the airflow in the air duct, so that the airflow passes through the second blade part 2, and the air conditioner can realize a good air guiding function in a refrigerating mode and a heating mode.
Further, the air conditioner comprises a fan shell 001 and an impeller arranged in the fan shell 001, wherein an air duct is formed in the fan shell, and one end of the air duct is communicated with the impeller.
In this embodiment, two sets of air duct components 100 are disposed side by side in the fan housing 001, and the two sets of air duct components 100 are separated by a rear volute disposed in the fan housing 001.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (15)

1. A wind sweeping blade is characterized by comprising a first blade part and a second blade part which are connected, wherein the second blade part is provided with a first wind hole penetrating through the second blade part, the first blade part is provided with a second wind hole, and the density of the second wind holes gradually decreases from the connecting end of the first blade part and the second blade part to the other end or the density of the second wind holes of one end, close to the second blade part, of the first blade part is higher than that of the second wind holes of the other end;
the first blade portion is arranged at the windward end of the second blade portion for guiding the airflow through the second blade portion; the first blade part is smoothly connected with the second blade part, and the first blade part extends from the end part of the second blade part in a bending way;
wherein the first blade portion is curved towards a windward end of the second blade portion;
the first blade portion includes a first end face and a second end face; the second blade portion is arranged flatly and comprises an upper end face; the first end face is connected with the upper end face, and the vertical distance from a point on the first end face contour line to the plane where the upper end face is located increases with the increase of the distance from the point on the first end face contour line to the intersection point of the first end face contour line and the plane where the upper end face is located.
2. The wind sweeping blade of claim 1, wherein at least one of said first end surface and said second end surface has a curved contour.
3. A wind-sweeping blade according to claim 2 wherein the profile of said first end face is an arc, and the tangent to any point on the profile of said first end face makes an angle of 0 ° to 75 ° with the plane of said upper end face.
4. A wind-sweeping blade according to claim 3 wherein the profile of the first end face includes a first sub-segment and a second sub-segment, the second sub-segment connecting the first sub-segment and the second blade portion, the tangent to any point on the first sub-segment subtending an angle of from 20 ° to 60 ° to the plane of the upper end face.
5. The swept blade of claim 1, wherein the first blade portion comprises a first end face and a second end face, and a contour line of the first end face is an arc.
6. A wind-sweeping blade according to claim 5 wherein any tangent to the first end profile at the upper point thereof is at an angle of from 0 ° to 75 ° to the tangent at the intersection of the first end profile and the second blade portion.
7. The swept blade of claim 5, wherein the first end profile comprises a first sub-segment and a second sub-segment, the second sub-segment connecting the first sub-segment and the second blade portion, and an angle between any tangent of the first sub-segment and a tangent of a point where the first end profile intersects the second blade portion is between 20 ° and 60 °.
8. A wind-sweeping blade according to any one of claims 1 to 7, wherein the ratio of the length of the first blade portion projected onto the plane of the upper end face of the second blade portion to the length of the wind-sweeping blade projected onto the plane of the upper end face is in the range 0.25 to 0.6.
9. A wind-sweeping blade according to any one of claims 1 to 7 wherein the profile of the first end face of the first blade portion projected onto the plane of the upper end face of the second blade portion includes, in succession, a first straight segment, a first curved segment, a second straight segment, a second curved segment and a third straight segment, the end of the first straight segment facing away from the first curved segment being connected to the second blade portion and the end of the third straight segment facing away from the second curved segment being connected to the second blade portion.
10. The wind sweeping blade of claim 9 wherein said first linear segment is parallel to said second linear segment and has a length greater than the length of said third linear segment; the first arc line segment and the second arc line segment are both minor arcs.
11. The swept blade of claim 1, wherein a ratio of a sum of hole areas of the first wind hole and the second wind hole to the swept blade area is 0.2-0.4.
12. The wind-sweeping blade according to claim 1, wherein the wind-sweeping blade is provided with a rotating shaft for rotating the wind-sweeping blade.
13. An air conditioning system for an air conditioner, comprising:
a wind-sweeping blade according to any one of claims 1 to 12 wherein the first blade portion is located at the windward end of the second blade portion for directing airflow across the second blade portion, the angle between the tangent to any point on the first sub-segment on the first end profile line of the first blade portion and the plane of the upper end face of the second blade portion being from 20 ° to 60 °, or the angle between the tangent to any point on the first sub-segment on the first end profile line of the first blade portion and the tangent to the point of intersection of the first end profile line of the first blade portion and the second blade portion being from 20 ° to 60 °;
the control module is used for sending a driving instruction to control the plurality of wind sweeping blades to rotate to a target angle;
and the driving module is used for receiving a driving instruction to drive the plurality of wind sweeping blades to rotate to the target angle.
14. The air conditioning system as claimed in claim 13, wherein the difference between the target angle and the angle between the tangent to any point on the first sub-arc segment and the upper end surface or the angle between the tangent to any point on the first sub-arc segment and the tangent to the intersection of the first end surface contour line and the second blade portion is N, -10 ° or more and N or less and 20 ° or less.
15. An air conditioner comprising a wind-sweeping blade according to any one of claims 1 to 12, said first blade portion being disposed at a windward end of said second blade portion for directing airflow across said second blade portion.
CN201911337630.7A 2019-12-23 2019-12-23 Sweep wind blade, air conditioning system and air conditioner Active CN111023290B (en)

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CN111780237B (en) * 2020-07-14 2021-10-01 Tcl空调器(中山)有限公司 Sweep wind mechanism and air conditioner
CN112066453A (en) * 2020-09-08 2020-12-11 Tcl空调器(中山)有限公司 Air conditioner indoor unit and air conditioner

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GB2462466A (en) * 2008-08-08 2010-02-10 Portasilo Ltd Explosion blast protection apparatus
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