CN111637530A - Volute tongue, air conditioner indoor unit and air conditioner - Google Patents
Volute tongue, air conditioner indoor unit and air conditioner Download PDFInfo
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- CN111637530A CN111637530A CN202010498372.7A CN202010498372A CN111637530A CN 111637530 A CN111637530 A CN 111637530A CN 202010498372 A CN202010498372 A CN 202010498372A CN 111637530 A CN111637530 A CN 111637530A
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- 238000004378 air conditioning Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 9
- 230000001788 irregular Effects 0.000 claims description 7
- 238000007664 blowing Methods 0.000 abstract description 6
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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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
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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
- 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
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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
- 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 discloses a volute tongue, an air conditioner indoor unit and an air conditioner, wherein the volute tongue comprises a first volute tongue plate and a second volute tongue plate; the first volute tongue plate is used for being arranged opposite to a wind wheel of the air conditioner; one end of the second volute tongue plate is connected with the first volute tongue plate, and the other end of the second volute tongue plate is used for extending towards an air outlet of the air conditioner; one side of the second volute tongue plate facing the air duct is provided with an air guide surface, and one end of the air guide surface close to the air outlet extends along the horizontal direction or upwards; the air guide surface is provided with an air suction structure so that air can be blown out along the wall surface of the air guide surface. According to the technical scheme, the coanda airflow flowing along the air guide surface is formed, and the airflow is prevented from being separated from the air guide surface too early, so that cold air is blown out towards the horizontal direction or the upward direction, refrigeration cold air is prevented from blowing towards the downward direction to directly blow people, and the comfort level of a user is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a volute tongue, an air conditioner indoor unit and an air conditioner.
Background
Along with the development of the society, people have higher and higher requirements on the comfort of the air conditioner, for example, when the air conditioner is used for refrigerating, the air conditioner can realize quick refrigeration, and cold air can not be blown directly towards people, in the related technology, a mode of rotating an air deflector to blow the cold air upwards or forming micropores on an air guide blade to reduce the air outlet strength is usually adopted, but the mode is realized at the cost of air volume loss, and the performance of the whole machine can be influenced.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a volute tongue, aiming at achieving the effect of blowing cold air of an air conditioner horizontally or upwards and improving the comfort of a user.
In order to achieve the purpose, the volute tongue provided by the invention comprises a first volute tongue plate and a second volute tongue plate; the first volute tongue plate is used for being arranged opposite to a wind wheel of the air conditioner; one end of the second volute tongue plate is connected with the first volute tongue plate, and the other end of the second volute tongue plate is used for extending towards an air outlet of the air conditioner; one side of the second volute tongue plate facing the air duct is provided with an air guide surface, and one end of the air guide surface close to the air outlet extends along the horizontal direction or upwards; and an air suction structure is arranged on the air guide surface, so that air is blown out along the wall surface of the air guide surface.
In an embodiment of the present invention, the air suction structure is a pit structure and/or a protrusion structure.
In an embodiment of the present invention, the air guiding surface includes a first air guiding portion and a second air guiding portion, the first air guiding portion is disposed in an inclined manner, an upper edge of the first air guiding portion is connected to the first volute tongue plate, the second air guiding portion is disposed at the air outlet and connected to a lower edge of the first air guiding portion, the second air guiding portion extends along a horizontal direction or upward direction, and a position where the second air guiding portion is connected to the first air guiding portion is an arc surface protruding outward; the first air guide part and the second air guide part are both provided with the air suction structures.
In an embodiment of the invention, a lower edge of the first air guiding portion is inclined toward the air outlet relative to an upper edge of the first air guiding portion.
In an embodiment of the invention, the first tongue plate has a windward surface opposite to the wind wheel, the windward surface is an inward concave arc surface, and a center of the inward concave arc surface is coincident with an axis of the wind wheel.
In an embodiment of the present invention, an arc transition section protruding outward is formed at a connection position of the windward surface and the wind guide surface.
In an embodiment of the present invention, a distance S between the edge of the arc transition section and the air suction structure is not greater than 40 mm.
In an embodiment of the invention, the air suction structures are distributed on the air guide surface in an irregular and divergent manner, or the air suction structures are distributed on the air guide surface in an array manner, or the air suction structures are distributed on the air guide surface in an air dislocation manner.
In an embodiment of the present invention, when the air suction structure is a pit structure, the pit structure is a spherical pit, and the structural parameters of the spherical pit include at least one of:
the depth H of the spherical pits is greater than or equal to 0.5mm and not greater than 5 mm;
the diameter D of the spherical pits is greater than or equal to 1mm and not greater than 10 mm;
the center distance L between two adjacent spherical pits is greater than or equal to 1mm and not greater than 10 mm.
In an embodiment of the present invention, a sawtooth structure is disposed at an end of the first tongue plate away from the second tongue plate.
In order to achieve the purpose, the invention also provides an air-conditioning indoor unit, which comprises a volute, a wind wheel and the volute tongue; the volute and the volute tongue define an air duct, the air duct is provided with an air outlet, the wind wheel is arranged in the air duct, the first volute tongue plate and the wind wheel are arranged oppositely, and the second volute tongue plate extends to the air outlet. The volute comprises a first volute tongue plate and a second volute tongue plate; the first volute tongue plate is used for being arranged opposite to a wind wheel of the air conditioner; one end of the second volute tongue plate is connected with the first volute tongue plate, and the other end of the second volute tongue plate is used for extending towards an air outlet of the air conditioner; one side of the second volute tongue plate facing the air duct is provided with an air guide surface, and one end of the air guide surface close to the air outlet extends along the horizontal direction or upwards; and an air suction structure is arranged on the air guide surface, so that air is blown out along the wall surface of the air guide surface.
In order to achieve the above object, the present invention further provides an air conditioner, comprising an outdoor unit of an air conditioner and the indoor unit of the air conditioner; the air-conditioning indoor unit comprises a volute, a wind wheel and the volute tongue; the volute and the volute tongue define an air duct, the air duct is provided with an air outlet, the wind wheel is arranged in the air duct, the first volute tongue plate and the wind wheel are arranged oppositely, and the second volute tongue plate extends to the air outlet. The volute comprises a first volute tongue plate and a second volute tongue plate; the first volute tongue plate is used for being arranged opposite to a wind wheel of the air conditioner; one end of the second volute tongue plate is connected with the first volute tongue plate, and the other end of the second volute tongue plate is used for extending towards an air outlet of the air conditioner; one side of the second volute tongue plate facing the air duct is provided with an air guide surface, and one end of the air guide surface close to the air outlet extends along the horizontal direction or upwards; and an air suction structure is arranged on the air guide surface, so that air is blown out along the wall surface of the air guide surface.
The volute tongue comprises a first volute tongue plate and a second volute tongue plate, wherein the first volute tongue plate and the wind wheel are arranged oppositely, so that airflow generated by the wind wheel can flow to the second volute tongue plate through the air guiding effect of the first volute tongue plate, the second volute tongue plate extends towards the air outlet, one side, facing the air duct, of the second volute tongue plate is provided with an air guiding surface, one end, close to the air outlet, of the air guiding surface extends horizontally or upwards, an air suction structure is arranged on the air guiding surface, laminar airflow flowing along the air guiding surface is converted into turbulent airflow, the wall attachment effect of the airflow is enhanced, coanda airflow flowing along the air guiding surface is formed, the airflow is prevented from being separated from the air guiding surface too early, cold air is blown out horizontally or upwards, the effect of preventing cold air from blowing to blow people directly downwards is achieved, and the comfort level of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the embodiment of the volute tongue of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of the direction B in the embodiment of the present invention;
fig. 4 is a schematic structural view of the air flow direction of the indoor unit of the air conditioner.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Volute |
110 | First |
| 111 | |
112 | Sawtooth |
| 120 | Second |
121 | |
| 121a | A first |
1211 | |
| 1212 | Lower edge | 121b | The second |
| 101 | |
130 | |
| 200 | |
300 | |
| 400 | |
410 | Air outlet |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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, 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 present invention provides a volute tongue 100, which can be used in an air conditioner.
In the embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 4, the volute tongue 100 includes a first volute tongue plate 110 and a second volute tongue plate 120, the first volute tongue plate 110 is configured to be disposed opposite to a wind wheel 200 of an air conditioner; one end of the second tongue plate 120 is connected with the first tongue plate 110, and the other end is used for extending towards the air outlet 410 of the air conditioner; one side of the second tongue plate 120 facing the air duct 400 is provided with an air guide surface 121, one end of the air guide surface 121 close to the air outlet 410 extends along the horizontal direction or upwards, and an air suction structure is arranged on the air guide surface 121, so that air is blown out along the wall surface of the air guide surface 121.
The volute tongue 100 is disposed in the air conditioner to guide air. The volute tongue 100 comprises a first volute tongue plate 110 and a second volute tongue plate 120 connected with the first volute tongue plate 110, the first volute tongue plate 110 is arranged opposite to the wind wheel 200, so that airflow generated in the running process of the wind wheel 200 can flow to the joint of the first volute tongue plate 110 and the second volute tongue plate 120 through the drainage effect of the first volute tongue plate 110, and then flows to the air outlet 410 through the air guiding effect of the second volute tongue plate 120, the second volute tongue plate 120 is provided with an air guiding surface 121, the wall surface of the air guiding surface 121 extends to the air outlet 410, so that the airflow can be guided to the air outlet 410, and the air conditioner is blown out from the air outlet 410 along the wall surface of the air guiding surface 121.
It can be understood that, the first volute tongue plate 110 is arranged opposite to the wind wheel 200, a certain gap is formed between the first volute tongue plate 110 and the wind wheel 200, and the airflow generated by the operation of the wind wheel 200 can smoothly flow out from the gap between the first volute tongue plate 110 and the wind wheel 200, so as to prevent the airflow from flowing back and achieve the effect of increasing the air output.
The second tongue plate 120 extends from the connection position with the first tongue plate 110 toward the air outlet 410, one side of the second tongue plate 120 facing the air duct 400 is provided with an air guide surface 121 to play a role in guiding air flow, one end of the air guide surface 121 close to the air outlet 410 extends along the horizontal direction or upward, the air guide surface 121 is provided with an air suction structure, the air flow flowing through the air guide surface 121 can be converted into a turbulent flow boundary layer from a laminar flow boundary layer, the turbulent flow boundary layer has strong anti-separation capability relative to the laminar flow boundary layer, so that the wall attachment capability of the air flow is enhanced, the air flow can flow to the air outlet 410 along the air guide surface 121 to blow out towards the horizontal direction or upward, the phenomenon that the laminar flow is separated from the air guide surface 121 too early to cause downward blowing of the air flow is avoided, and cold air can be blown towards the horizontal direction or upward without directly blowing people downward in the air-conditioning, the effect that cold air does not blow people is achieved, and the comfort of users is improved.
It can be understood that, when one end of the air guiding surface 121 close to the air outlet 410 extends in the horizontal direction, the air suction structure on the air guiding surface 121 can make the air blow out from the air outlet 410 in the horizontal direction along with the air guiding surface 121; when the one end that wind guide surface 121 is close to air outlet 410 extends towards the top, the structure of induced drafting on wind guide surface 121 can make wind paste wind guide surface 121 and blow out from air outlet 410 towards the top, because the weight of cold air is bigger this moment, will cool air blow out after the top, can slowly descend, form the courtyard air current that can directly not blow the people to reach the cryogenic effect of indoor air, improved user's travelling comfort.
In the practical application process, the specific structure of the air suction structure can be determined according to the actual situation, as long as it is ensured that the air suction structure can enable the air to flow against the wall surface of the air guide surface 121, for example, the air suction structure can be a concave point structure, a convex point structure, frosting, or a dot structure and the like, which can increase the roughness of the air guide surface 121, so that the regular laminar air flow can be scattered into irregular turbulent air flow, and the coanda air flow flowing along the air guide surface 121 can be formed. Alternatively, the coverage area of the air suction structure may also be determined according to the actual situation, for example, the entire wall surface of the air guide surface 121 may be covered, only the area close to the first tongue plate 110 may be covered, and only the area close to the air outlet 410 may be covered. In the present embodiment, the air suction structure may cover the entire wall surface of the air guide surface 121 in order to prevent the air flow from being separated from the air guide surface 121 prematurely and to form the coanda air flow when blowing out the air outlet 410.
Optionally, the number of the air suction structures may be multiple, and the specific distribution manner of the air suction structures may be determined according to actual situations, for example, the air suction structures may be regularly distributed in an array manner or distributed on the wall surface of the air guide surface 121 in a staggered manner, or distributed on the wall surface of the air guide surface 121 in an irregular manner. When the plurality of air suction structures are arranged in an array mode, the air suction structures can be arranged in a rectangular array mode or a circular array mode.
The technical scheme of the invention is that the volute tongue 100 comprises a first volute tongue plate 110 and a second volute tongue plate 120, wherein the first volute tongue plate 110 is arranged opposite to the wind wheel 200, a gap for airflow to pass through is formed between the first volute tongue plate 110 and the wind wheel 200, so that airflow generated by the wind wheel 200 can flow to the second volute tongue plate 120, the second volute tongue plate 120 extends towards the air outlet 410, one side of the second volute tongue plate 120, which faces the wind channel 400, is provided with a wind guide surface 121, one end, close to the air outlet 410, of the wind guide surface 121 extends horizontally or upwards, the wind guide surface 121 is provided with a wind suction structure, laminar airflow flowing along the wind guide surface 121 is converted into turbulent airflow, the wall attachment effect of the airflow is enhanced, coanda airflow flowing along the wind guide surface 121 is formed, the airflow is prevented from being separated from the wind guide surface 121 too early, cold air is blown out horizontally or upwards, and the effect of preventing cold air from being blown downwards and directly blown, the comfort of the user is improved.
In an embodiment of the present invention, referring to fig. 1 to 3, the air suction structure is a concave structure 101 and/or a convex structure, that is, it can be understood that the air guide surface 121 may be provided with a convex structure, or may be provided with a concave structure 101, or may be provided with a concave structure and a convex structure at the same time, when the concave structure and the convex structure are provided at the same time, the concave structure and the convex structure may be adjacently arranged, or may be arranged at intervals in a staggered manner, so as to disperse the air flow more uniformly. The convex structure or the concave structure can break up the regular laminar airflow flowing through the air guide surface 121 into irregular turbulent airflow, and the function of increasing the separation resistance of the airflow is achieved. In the present embodiment, in consideration of uncertainty of the protrusion structure, if the protrusion of the protrusion structure is too high, the airflow may be separated from the air guiding surface 121 from the top of the protrusion, and therefore, in addition, in the present embodiment, in order to make the coanda effect of the air guiding surface 121 better, the pit structure 101 is adopted.
Optionally, referring to fig. 3, the number of the pit structures 101 is plural, and a specific distribution manner of the plural pit structures 101 is not required, for example, the plural pit structures may be distributed in a regular array, or distributed in a staggered and empty manner, or distributed in an irregular divergent manner. In the embodiment of the present invention, in consideration of the difficulty of the processing technology and the cost, the plurality of pit structures 101 may be selected to be distributed in an array, specifically, in a rectangular array or a circular array.
In an embodiment of the present invention, referring to fig. 2 and 4, the air guiding surface 121 includes a first air guiding portion 121a and a second air guiding portion 121b, the first air guiding portion 121a is disposed in an inclined manner, an upper edge 1211 of the first air guiding portion 121a is connected to the first tongue plate 110, the second air guiding portion 121b is disposed at the air outlet 410 and connected to a lower edge 1212 of the first air guiding portion 121a, the second air guiding portion 121b extends along a horizontal direction or upward direction, and a position where the second air guiding portion 121b is connected to the first air guiding portion 121a is an arc surface protruding outward; air suction structures are arranged on the first air guide part 121a and the second air guide part 121 b.
The air guide surface 121 includes a first air guide portion 121a and a second air guide portion 121b, an upper edge 1211 of the first air guide portion 121a is connected to the first tongue plate 110, the second air guide portion 121b is connected to a lower edge 1212 of the first air guide portion 121a, so that the air flow can smoothly flow to the second air guide portion 121b along the first air guide portion 121a, a position where the second air guide portion 121b is connected to the first air guide portion 121a may be an arc surface protruding outward, so that a surface on which the air flow flows is smoother, impact of the air flow is reduced, and an effect of reducing noise is achieved, meanwhile, because the second air guide portion 121b is disposed at the air outlet 410, and the second air guide portion 121b extends in a horizontal direction or upward direction, the air flow can flow to the second air guide portion 121b along the arc surface, and an effect of guiding the air flow to be horizontal or upward blown out is achieved.
It can be understood that the end of the second air guiding portion 121b may abut against the housing at the air outlet 410 of the air conditioner, or may not abut against the housing at the air outlet 410. In order to prevent the blown air flow from leaking out of the gap between the air conditioning casing and the second air guiding portion 121b, an end of the second air guiding portion 121b may be brought into contact with the casing at the air conditioner outlet 410. Optionally, the second air guiding portion 121b may be disposed horizontally, or disposed obliquely upward, or disposed upward in an arc shape, so as to guide the airflow to the horizontal or upward air outlet, thereby preventing the cold air from being blown downward and directly blown onto the human body, and achieving the effect of improving the comfort of the air conditioner.
In an actual application process, the first air guiding portion 121a is disposed in an inclined manner, optionally, the lower edge 1212 of the first air guiding portion 121a is inclined toward the direction of the air outlet 410 relative to the upper edge 1211 of the first air guiding portion 121a, so that the guiding direction of the first air guiding portion 121a can be substantially consistent with the flowing direction of the air flow, thereby reducing the impact of the air flow on the first air guiding portion 121a, and further achieving the effects of noise reduction and vibration reduction. Alternatively, the inclination angle of the first air guiding portion 121a may be determined according to actual situations, such as 15 °, 20 °, 25 °, 30 °, 45 °, 50 °, 55 °, 60 °, 65 °, 70 °, 75 °, and so on. Preferably, the inclination angle of the first air guiding portion 121a is 30 °. In an actual application process, when the inclination angle of the first air guiding portion 121a is measured, the horizontal plane where the lower edge 1212 of the first air guiding portion 121a is located may be used as a reference for measurement.
In an embodiment of the present invention, referring to fig. 1 and 2, the first tongue plate 110 has a windward surface 111 disposed opposite to the wind wheel 200, and the windward surface 111 may be an inward concave arc surface, and a center of the inward concave arc surface coincides with an axis of the wind wheel 200. The windward side 111 is opposite to the wind wheel 200 and is an inward concave arc surface, so that a smooth channel for guiding airflow is formed between the windward side 111 and the wind wheel 200, the airflow flows more smoothly, the impact of the airflow on the first volute tongue plate 110 is reduced, the airflow can smoothly flow into the air channel corresponding to the second volute tongue plate 120, the impact of the airflow on the wind wheel 200 is reduced, and the noise reduction effect is achieved. Optionally, the windward side 111 is coaxially disposed with the wind wheel 200, so that the concave radian of the windward side 111 is consistent with the outer circumference shape of the wind wheel 200, thereby further enhancing the stability of the airflow flow.
Optionally, a circular arc transition section 130 protruding outwards is formed at the junction of the windward side 111 and the wind guide surface 121. An arc transition section 130 is formed between the windward side 111 and the wind guide surface 121, so that the connection part is smoother, the resistance of the airflow is reduced, the impact of the airflow on the volute tongue 100 is also reduced, and a better wind guide effect is achieved.
In an embodiment of the present invention, referring to fig. 2, the edge of the circular arc transition section 130 is spaced from the pit structure 101 by a distance S of not more than 40 mm. In order to prevent laminar airflow from separating from air guide surface 121 prematurely, the spacing between circular arc transition 130 and dimple arrangement 101 cannot be too large, and optionally, the spacing therebetween is no greater than 40 mm. In order to be able to guide the air better and to have a sufficient coanda effect, the spacing S is optionally not greater than 10mm, such as 0mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10 mm.
In an embodiment of the present invention, referring to fig. 2 and 3, the specific shape of the pit structure 101 may be determined according to actual situations, such as a square pit, a cylindrical pit, a spherical pit, or other irregular pits. In the present embodiment, in order to make the airflow flow more stable, optionally, the pit structure 101 is a spherical pit, which reduces the sharpness of the wind guide surface 121 and reduces the resistance to the airflow.
In practical applications, the depth of the pit structure 101 should not be too deep, which is likely to generate squeaking noise, and to avoid this, the depth H of the spherical pit is optionally greater than or equal to 0.5mm and not greater than 5 mm. Preferably, the depth H of the spherical pits ranges between 0.5mm and 1.5mm, e.g. the depth H may be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm or 1.5 mm.
In an embodiment of the present invention, referring to fig. 3, in order to enhance the coanda effect of the air flow, the diameter D of the dimple structure 101 cannot be too large or too small, alternatively, the diameter D of the spherical dimple is greater than or equal to 1mm and not greater than 10 mm; preferably, the spherical pits have a diameter D in the range between 1mm and 5mm, e.g. the diameter D may be 1mm, 2mm, 3mm, 4mm or 5 mm.
In an embodiment of the present invention, referring to fig. 3, in order to enhance the coanda effect of the air flow, the center-to-center distance L between two adjacent spherical dimples should not be too large or too small, and optionally, the center-to-center distance L between two adjacent spherical dimples is greater than or equal to 1mm and not greater than 10 mm. Preferably, the center-to-center distance L between two adjacent spherical pits ranges from 2mm to 5mm, for example, the center-to-center distance L may be 2mm, 3mm, 4mm or 5 mm.
In an embodiment of the present invention, referring to fig. 3, a saw tooth structure 112 is disposed at an end of the first tongue plate 110 away from the second tongue plate 120. The saw tooth structure 112 is arranged at the air inlet end of the first volute tongue plate 110, so that laminar airflow is converted into turbulent airflow early, and eddy noise is reduced.
The present invention further provides an air-conditioning indoor unit, referring to fig. 1 and 4, the air-conditioning indoor unit includes a volute 300, a wind wheel 200, and a volute tongue 100, and the specific structure of the volute tongue 100 refers to the above embodiments, and since the air-conditioning indoor unit employs all technical solutions of all the above embodiments, the air-conditioning indoor unit at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The volute 300 and the volute tongue 100 define an air duct 400, the air duct 400 has an air outlet 410, the wind wheel 200 is disposed in the air duct 400, the first volute tongue plate 110 is disposed opposite to the wind wheel 200, and the second volute tongue plate 120 extends to the air outlet 410.
The volute 300 and the volute tongue 100 define an air duct 400, one side of the second volute tongue plate 120, which faces the air duct 400, is provided with an air guide surface 121, and the air guide surface 121 is provided with a plurality of air suction structures to increase the wall attachment effect of the air flow, so that the air flow can flow to the air outlet 410 along the air guide surface 121 to enable the wind energy to be horizontally blown out or upwards blown out. Optionally, a pit structure may be also provided on the inner wall of the scroll 300 near the air outlet 410, so as to prevent the airflow from separating from the inner wall surface of the scroll 300 too early, and prevent condensation.
The present invention further provides an air conditioner, which includes an outdoor unit and an indoor unit, and the specific structure of the indoor unit of the air conditioner refers to the above embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A volute tongue, wherein the volute tongue comprises:
the first volute tongue plate is used for being arranged opposite to a wind wheel of the air conditioner; and
one end of the second volute tongue plate is connected with the first volute tongue plate, and the other end of the second volute tongue plate is used for extending towards the air outlet of the air conditioner; one side of the second volute tongue plate facing the air duct is provided with an air guide surface, and one end of the air guide surface close to the air outlet extends along the horizontal direction or upwards; and an air suction structure is arranged on the air guide surface, so that air is blown out along the wall surface of the air guide surface.
2. The volute tongue of claim 1, wherein the suction structure is a dimple structure and/or a raised structure.
3. The volute tongue as claimed in claim 1, wherein the air guide surface comprises a first air guide part and a second air guide part, the first air guide part is arranged obliquely, the upper edge of the first air guide part is connected with the first volute tongue plate, the second air guide part is arranged at the air outlet and connected with the lower edge of the first air guide part, the second air guide part extends along the horizontal direction or upwards, and the position where the second air guide part is connected with the first air guide part is an arc surface which is arranged in a protruding manner outwards; and air suction structures are arranged on the first air guide part and the second air guide part.
4. The volute tongue of claim 3, wherein the lower edge of the first air-guiding portion is inclined in a direction toward the outlet relative to the upper edge of the first air-guiding portion.
5. The volute tongue as claimed in any one of claims 1 to 4, wherein the first volute tongue plate has a windward surface disposed opposite to the wind wheel, the windward surface is an inward-concave arc surface, and a center of the inward-concave arc surface is coincident with an axis of the wind wheel.
6. The volute tongue as claimed in claim 5, wherein a circular arc transition section protruding outwards is formed at the junction of the windward side and the air guide surface.
7. The volute tongue of claim 5, wherein the edge of the rounded transition section is spaced from the suction structure by a distance S of no more than 40 mm.
8. The volute tongue as claimed in any one of claims 1 to 4, wherein the plurality of air suction structures are distributed on the air guide surface in an irregular divergence manner, or distributed in an array manner, or distributed in an air dislocation manner.
9. The volute tongue of claim 8, wherein when the air-suction structure is a dimple structure, the dimple structure is a spherical dimple, and the structural parameters of the spherical dimple include at least one of:
the depth H of the spherical pits is greater than or equal to 0.5mm and not greater than 5 mm;
the diameter D of the spherical pits is greater than or equal to 1mm and not greater than 10 mm;
the center distance L between two adjacent spherical pits is greater than or equal to 1mm and not greater than 10 mm.
10. The volute tongue of any one of claims 1-4, wherein an end of the first volute tongue plate remote from the second volute tongue plate is provided with a saw tooth structure.
11. An air-conditioning indoor unit, characterized by comprising a volute, a wind wheel and a volute tongue according to any one of claims 1 to 10; the volute and the volute tongue define an air duct, the air duct is provided with an air outlet, the wind wheel is arranged in the air duct, the first volute tongue plate and the wind wheel are arranged oppositely, and the second volute tongue plate extends to the air outlet.
12. An air conditioner comprising an outdoor unit of the air conditioner and an indoor unit of the air conditioner as claimed in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010498372.7A CN111637530B (en) | 2020-06-03 | 2020-06-03 | Volute tongue, air conditioner indoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010498372.7A CN111637530B (en) | 2020-06-03 | 2020-06-03 | Volute tongue, air conditioner indoor unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111637530A true CN111637530A (en) | 2020-09-08 |
| CN111637530B CN111637530B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010498372.7A Active CN111637530B (en) | 2020-06-03 | 2020-06-03 | Volute tongue, air conditioner indoor unit and air conditioner |
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| Country | Link |
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| CN (1) | CN111637530B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207335096U (en) * | 2017-10-30 | 2018-05-08 | 四川长虹空调有限公司 | Air-conditioning volute tongue, air conditioner room unit and air conditioner |
| CN109595690A (en) * | 2018-11-23 | 2019-04-09 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| WO2019087078A1 (en) * | 2017-10-30 | 2019-05-09 | Zehnder Group International Ag | Cover plate for a fan, impeller and fan therewith |
| CN209819687U (en) * | 2019-04-29 | 2019-12-20 | 广东美的制冷设备有限公司 | Wall-mounted air conditioner indoor unit and air conditioner |
-
2020
- 2020-06-03 CN CN202010498372.7A patent/CN111637530B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207335096U (en) * | 2017-10-30 | 2018-05-08 | 四川长虹空调有限公司 | Air-conditioning volute tongue, air conditioner room unit and air conditioner |
| WO2019087078A1 (en) * | 2017-10-30 | 2019-05-09 | Zehnder Group International Ag | Cover plate for a fan, impeller and fan therewith |
| CN109595690A (en) * | 2018-11-23 | 2019-04-09 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| CN209819687U (en) * | 2019-04-29 | 2019-12-20 | 广东美的制冷设备有限公司 | Wall-mounted air conditioner indoor unit and air conditioner |
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| Publication number | Publication date |
|---|---|
| CN111637530B (en) | 2021-11-09 |
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