CN108507043B - Air guide ring, air conditioner outdoor unit and air conditioner - Google Patents
Air guide ring, air conditioner outdoor unit and air conditioner Download PDFInfo
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- CN108507043B CN108507043B CN201810426217.7A CN201810426217A CN108507043B CN 108507043 B CN108507043 B CN 108507043B CN 201810426217 A CN201810426217 A CN 201810426217A CN 108507043 B CN108507043 B CN 108507043B
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- guide ring
- air guide
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- ring
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- 230000002829 reductive effect Effects 0.000 claims abstract description 36
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 description 15
- 230000009467 reduction Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
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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
- F24F13/24—Means for preventing or suppressing noise
-
- 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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an air guide ring, an air conditioner outdoor unit and an air conditioner, wherein the air guide ring is used for the air conditioner outdoor unit, the air conditioner outdoor unit comprises a front panel and axial flow fan blades, the air guide ring is arranged on the front panel, a ventilation air duct is formed in the air guide ring, the air guide ring comprises a first air guide ring, a second air guide ring and a third air guide ring which are sequentially connected in a direction far away from the front panel, and the first air guide ring, the second air guide ring and the third air guide ring are coaxially arranged; the first air guide ring is abutted against the surface of the front panel, which faces the axial flow fan blades, and the cross section area of the second air guide ring is gradually reduced towards the direction away from the front panel; the axial flow fan blade passes through the third air guide ring and stretches into the second air guide ring. The technical scheme of the invention provides an air guide ring, which improves the air output of an air outlet and reduces the noise of an air conditioner outdoor unit.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air guide ring, an air conditioner outdoor unit and an air conditioner.
Background
With the improvement of the living standard of people, when people use the air conditioner, the people not only pursue good refrigerating and heating effects, but also put forward new requirements on the silencing effect of the air conditioner.
At present, a circular air outlet structure is adopted for an air guide ring of an air conditioner outdoor unit, the minimum value which can be achieved by the radial gap between an axial flow fan blade and the air guide ring is still too large, the negative pressure is high, and a large air pressure difference value is generated on two sides of the gap between the top end of the fan blade and the air guide ring, wherein the air pressure difference value is a main cause of axial air leakage; the air leakage is drawn back by the axial flow blades and discharged to the atmosphere, so that a circulating air flow is formed, and the work of the air flow is consumed in a white place, so that the efficiency of the axial flow blades is reduced, the effective work of the axial flow blades in unit time is reduced, and the outdoor unit of the air conditioner is difficult to realize a good noise reduction effect.
Disclosure of Invention
The invention mainly aims to provide an air guide ring which improves the air output of an air outlet and reduces the noise of an air conditioner outdoor unit.
In order to achieve the above object, the air guide ring provided by the invention is used for an air conditioner outdoor unit, the air conditioner outdoor unit comprises a front panel and axial flow fan blades, the air guide ring is arranged on the front panel, a ventilation air duct is formed in the air guide ring, the air guide ring comprises a first air guide ring, a second air guide ring and a third air guide ring which are sequentially connected in a direction far away from the front panel, and the first air guide ring, the second air guide ring and the third air guide ring are coaxially arranged; the first air guide ring is abutted against the surface of the front panel, which faces the axial flow fan blades, and the cross section area of the second air guide ring is gradually reduced towards the direction away from the front panel; the axial flow fan blade passes through the third air guide ring and stretches into the second air guide ring.
Preferably, the cross-sectional area of the third wind guide ring gradually increases in a direction away from the front panel.
Preferably, the difference between the distance from the side wall of the end with the smallest cross-sectional area of the second wind guiding ring to the central axis of the wind guiding ring and the distance from the side wall of the first wind guiding ring to the central axis of the wind guiding ring is L, and L satisfies the relation: l is more than or equal to 3mm and less than or equal to 20mm.
Preferably, the length of the second wind guiding ring extending along the axial direction is H, and H satisfies the relation: h is more than or equal to 5mm and less than or equal to 31mm.
Preferably, the curved surface body surrounded by the inner wall surface of the second wind guiding ring is in a horn shape or a truncated cone shape.
Preferably, the second wind guiding ring is composed of at least two sections of wind guiding rings, and the curved surface body surrounded by the inner wall surface of any wind guiding ring is in a horn shape or a truncated cone shape.
Preferably, the second wind guiding ring comprises a first wind guiding ring connected with the first wind guiding ring, a second wind guiding ring connected with the first wind guiding ring, and a third wind guiding ring connected between the second wind guiding ring and the third wind guiding ring, the shape of a curved surface body surrounded by the inner wall surface of the first wind guiding ring is a horn shape, the shape of a curved surface body surrounded by the inner wall surface of the second wind guiding ring is a circular truncated cone shape, and the shape of a curved surface body surrounded by the inner wall surface of the third wind guiding ring is a horn shape.
Preferably, the curved surface formed by the inner wall surfaces of the first air guide ring, the second air guide ring and the third air guide ring is the same as the curved surface formed by the axial flow fan blade rotating around the central axis of the axial flow fan blade.
Preferably, a fourth air guide ring is further connected between the second air guide ring and the third air guide ring, and a curved surface body surrounded by the inner wall surface of the fourth air guide ring is cylindrical.
The invention also provides an air conditioner outdoor unit, which comprises an air guide ring, wherein the air guide ring is used for the air conditioner outdoor unit, the air conditioner outdoor unit comprises a front panel and axial flow fan blades, the air guide ring is arranged on the front panel, a ventilation air duct is formed in the air guide ring, the air guide ring comprises a first air guide ring, a second air guide ring and a third air guide ring which are sequentially connected in a direction far away from the front panel, and the first air guide ring, the second air guide ring and the third air guide ring are coaxially arranged; the first air guide ring is abutted against the surface of the front panel, which faces the axial flow fan blades, the cross section area of the second air guide ring is gradually reduced in the direction away from the front panel, and the cross section area of the third air guide ring is gradually increased in the direction away from the front panel; the axial flow fan blade passes through the third air guide ring and stretches into the second air guide ring; the air conditioner outdoor unit comprises a front panel and axial flow fan blades, wherein an air outlet is formed in the front panel, and the air guide ring is arranged at the air outlet and is communicated with the air passage and the air outlet.
Preferably, the air guide ring is integrally formed with the front panel.
The invention also provides an air conditioner, which comprises the air guide ring or an air conditioner external unit with the air guide ring; the air guide ring is used for an air conditioner outdoor unit and comprises a front panel and axial flow fan blades, wherein the air guide ring is arranged on the front panel, a ventilation air duct is formed in the air guide ring, the air guide ring comprises a first air guide ring, a second air guide ring and a third air guide ring which are sequentially connected in the direction away from the front panel, and the first air guide ring, the second air guide ring and the third air guide ring are coaxially arranged; the first air guide ring is abutted against the surface of the front panel, which faces the axial flow fan blades, and the cross section area of the second air guide ring is gradually reduced towards the direction away from the front panel; the axial flow fan blade passes through the third air guide ring and stretches into the second air guide ring.
According to the technical scheme, the wind guide rings are arranged to be the first wind guide ring, the second wind guide ring and the third wind guide ring, and the first wind guide ring, the second wind guide ring and the third wind guide ring are coaxially arranged; the cross section area of the second air guide ring gradually decreases towards the direction away from the front panel, and the axial flow fan blade passes through the third air guide ring and stretches into the second air guide ring; therefore, the radial clearance between the second air guide ring and the blade tips of the axial flow blades is reduced, the radial clearance between the third air guide ring and the blade tips of the axial flow blades is also reduced, the gas content discharged by the air flow from the radial clearance between the second air guide ring and the blade tips of the axial flow blades is reduced, namely the loss of the air quantity of the air outlet is reduced, the air quantity of the air outlet of the air conditioner outdoor unit is increased, and the noise of the air conditioner outdoor unit is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an outdoor unit of an air conditioner according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of an assembly of a front panel and a wind-guiding ring;
FIG. 3 is a schematic cross-sectional view of the air guide ring along A-A' in FIG. 2.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Wind-guiding ring | 200 | Air conditioner outdoor unit |
| 10 | Front panel | 31 | First wind-guiding ring |
| 11 | Air outlet | 33 | Third wind-guiding ring |
| 32 | Second wind-guiding ring | 35 | Fourth wind-guiding ring |
| 321 | Third air guide ring | 37 | Fifth wind-guiding ring |
| 323 | Second air guide ring | 50 | Axial flow fan blade |
| 335 | First air guide ring |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a wind guide ring 100, referring to fig. 1 to 3, the technical scheme of the invention provides a wind guide ring 100, which is used for an air conditioner outdoor unit 200, the air conditioner outdoor unit 200 comprises a front panel 10 and an axial flow fan blade 50, the wind guide ring 100 is installed on the front panel 100, a ventilation duct is formed in the wind guide ring 100, the wind guide ring 100 comprises a first wind guide ring 31, a second wind guide ring 32 and a third wind guide ring 33 which are sequentially connected in a direction far away from the front panel 10, and the first wind guide ring 31, the second wind guide ring 32 and the third wind guide ring 33 are coaxially arranged; the first air guiding ring 31 is abutted against the surface of the front panel 10 facing the axial flow fan blade 50, the cross-sectional area of the second air guiding ring 32 is gradually reduced towards the direction away from the front panel 10, and the axial flow fan blade 50 passes through the third air guiding ring 33 and stretches into the second air guiding ring 32.
According to the technical scheme, the air guide ring 100 is arranged into the first air guide ring 31, the second air guide ring 32 and the third air guide ring 33, and the first air guide ring 31, the second air guide ring 32 and the third air guide ring 33 are coaxially arranged; the cross-sectional area of the second air guide ring 32 gradually decreases towards the direction away from the front panel 10, and the axial flow fan blades 50 pass through the third air guide ring 33 and extend into the second air guide ring 32; thereby, the radial clearance between the second air guide ring 32 and the blade tips of the axial flow fan blades 50 is reduced, so that the air content discharged by the air flow from the radial clearance between the second air guide ring 32 and the blade tips of the axial flow fan blades 50 is reduced, namely, the loss of the air quantity of the air outlet 11 is reduced, and the air quantity of the air outlet 11 of the air conditioner outdoor unit 200 is increased, so that the noise of the air conditioner outdoor unit 200 is reduced.
In the present embodiment, as shown in fig. 2 to 3, the first air guide ring 31 has the same cross-sectional area taken by a plane perpendicular to the central axis of the first air guide ring 31, the second air guide ring 32 has a cross-sectional area taken by a plane perpendicular to the central axis of the second air guide ring 32 gradually decreasing in a direction away from the front panel 10, and the third air guide ring 33 has a cross-sectional area taken by a plane perpendicular to the central axis of the second air guide ring 32 gradually increasing in a direction away from the front panel 10. By the arrangement, the second wind guiding ring 32 and the third wind guiding ring 33 form a convergent-divergent ventilation duct, so that the divergence of air flow can be effectively restrained, the radial clearance between the tips of the second wind guiding ring 32 and the axial flow fan blade 50 is reduced, and the minimum cross-sectional area of the second wind guiding ring 32 is connected with the minimum cross-sectional area of the second wind guiding ring 32, so that the radial clearance between the third wind guiding ring 33 and the tips of the axial flow fan blade 50 is also reduced, namely, the radial clearance between the third wind guiding ring 33 and the tips of the axial flow fan blade 50 is smaller than that between the third wind guiding ring 33 and the tips of the axial flow fan blade 50 when the third wind guiding ring 33 is directly connected with the first wind guiding ring 31, thereby not only reducing the air flow discharged from the radial clearance between the tips of the second wind guiding ring 32 and the axial flow fan blade 50, but also reducing the loss of the air quantity of the air outlet 11, thereby increasing the air quantity loss of the air outlet 11, and further reducing the noise of the air conditioner 200, and further reducing the outdoor noise of the air conditioner 200.
It should be noted that, as shown in fig. 2 to 3, in a specific application process, a fifth air guiding ring 37 may be disposed between the first air guiding ring 31 and the front panel 10, and the cross-sectional area of the fifth air guiding ring 37 gradually decreases toward a direction away from the front panel 10; the fifth air guiding ring 37 can be used as an expansion channel, so that the speed of the air flow can be further reduced, the friction force between the air flow and the air guiding ring 100 is reduced, the eddy current loss in the air guiding ring 100 is effectively reduced, and the noise is further reduced. In addition, the connection part between the fifth air guide ring 37 and the front panel 10 can be set as a round corner, and the loss of the air output is further reduced through the transition of the round corner, so that a better noise reduction effect is achieved.
Preferably, as shown in fig. 3, the difference between the distance from the sidewall of the end with the smallest cross-sectional area of the second wind-guiding ring 32 to the central axis of the wind-guiding ring 100 and the distance from the sidewall of the first wind-guiding ring 31 to the central axis of the wind-guiding ring 100 is L, where L satisfies the relationship: l is more than or equal to 3mm and less than or equal to 20mm. That is, the maximum value of the recess of the second air guide ring 32 in the direction away from the first air guide ring 31 is L, and L satisfies the relation: l is more than or equal to 3mm and less than or equal to 20mm; if the L value is set too large, the air flow still flows out from the gap between the second air guide ring 32 and the blade tips of the axial flow fan blades 50, so that the air quantity is lost, and the noise reduction effect is not achieved; however, if the value of L is set too small, the blade tips of the axial flow fan blades 50 jump and touch the air guide ring 100, so that the friction vibration between the blade tips of the axial flow fan blades 50 and the inner wall of the air guide ring 100 causes damage to parts, thereby affecting the normal operation of the air conditioner outdoor unit 200; therefore, considering the optimum air volume and the optimum noise reduction effect in combination, L is set to: l is more than or equal to 3mm and less than or equal to 50mm.
As shown in fig. 3, the second air guide ring 32 has a length H extending in the axial direction, and H satisfies the relationship: h is more than or equal to 5mm and less than or equal to 31mm. If the H value is set too small, the air flow loss reduced by the air guide ring 100 is still small, so that even if the radial gap between the second air guide ring 32 and the axial flow fan blade 50 is set at a reasonable range value, the air volume flowing out of the gap between the second air guide ring 32 and the axial flow fan blade 50 can be reduced, but the air volume loss and the noise reduction effect can not be achieved due to the too small length of the second air guide ring 32, but if the H value is set too large, the air guide ring 100 is sleeved on the whole axial flow fan blade 50, so that the air flow reaching the axial flow fan blade 50 from the air guide ring 100 is reduced, the air volume is reduced, and the good noise reduction effect is not achieved; therefore, H is set to be: h is more than or equal to 5mm and less than or equal to 31mm.
Specifically, as shown in fig. 3, in the present embodiment, the curved surface body surrounded by the inner wall surface of the second air guiding ring 32 may be in a horn shape or a truncated cone shape, that is, the inner wall surface of the first air guiding ring 32 may be a curved surface surrounded by a straight line or an arc line rotating around the central axis of the first air guiding ring 32. In this embodiment, the curved surface body surrounded by the inner wall surface of the second air guiding ring 32 is in a horn shape, and the cross-sectional area of the second air guiding ring 32 gradually decreases in the direction away from the front panel 10, so that the inner wall surface of the second air guiding ring 32 inclines towards the axial flow fan blade 50, and the radial gap between the third air guiding ring 33 and the axial flow fan blade 50 can be further reduced, thereby further reducing the loss of the air output, and further achieving a better noise reduction effect.
The second wind-guiding ring 32 may be composed of at least two wind-guiding rings, and the curved surface body surrounded by the inner wall surface of any wind-guiding ring may be horn-shaped or truncated cone-shaped. The shape of the second air guiding ring 32 and the configuration of the air passage can be selected by a technician according to the actual situation, and only a good noise reduction effect is required to be achieved, which is not described herein.
Specifically, as shown in fig. 3, in the present embodiment, the second wind guiding ring 32 is composed of three sections of wind guiding rings, and includes a first wind guiding ring 325 connected to the first wind guiding ring 31, a second wind guiding ring 323 connected to the first wind guiding ring 325, and a third wind guiding ring 321 connected between the second wind guiding ring 323 and the third wind guiding ring 33, wherein the shape of the curved surface surrounded by the inner wall surface of the first wind guiding ring 325 is a horn shape, i.e. the inner wall surface of the first wind guiding ring 325 is a curved surface surrounded by an arc line rotating around the central axis of the wind guiding ring 100, the shape of the curved surface surrounded by the inner wall surface of the second wind guiding ring 323 is a circular table shape, i.e. the inner wall surface of the second wind guiding ring 323 is a curved surface surrounded by an oblique line rotating around the central axis of the wind guiding ring 100 at a certain angle, and the shape of the curved surface surrounded by the inner wall surface of the third wind guiding ring 321 is a horn shape, i.e. the inner wall surface surrounded by the inner wall surface of the third wind guiding ring 321 is a curved surface surrounded by an arc line rotating around the central axis of the wind guiding ring 100. By the arrangement, the first air guide ring 31 and the second air guide ring 32 are in smooth transition, the second air guide ring 32 and the third air guide ring 33 are prevented from being suddenly changed in direction and retained at the turning point, the air flow speed is prevented from being subjected to larger friction force at the turning point, namely, the loss of air quantity is further reduced, a good noise reduction effect is achieved, in addition, the second air guide ring 323 is arranged between the first air guide ring 325 and the third air guide ring 321, the inner wall surface of the second air guide ring 323 is in a round table shape, the shape of a curved surface body surrounded by the inner wall surface is round table, therefore, vortex is prevented from being formed after the first air guide ring 325 and the third air guide ring 321, airflow surface layer separation is avoided, the loss of air quantity is further reduced, and a good noise reduction effect is achieved.
Preferably, the curved surface formed by the axial flow fan blade 50 rotating around the central axis of the axial flow fan blade 50 is the same as the curved surface formed by the inner wall surfaces of the first air guide ring 325, the second air guide ring 323 and the third air guide ring 321. By the arrangement, the radial clearance between the air guide ring 100 and the axial flow fan blade 50 can be reduced to the greatest extent, and the loss of air quantity is reduced to the greatest extent, so that the best noise reduction effect is achieved.
In addition, the inner wall surface of the third air guiding ring 33 may be a curved surface body enclosed by a horn shape or a truncated cone shape, and in this embodiment, the curved surface body enclosed by the inner wall surface of the third air guiding ring 33 is configured to be a truncated cone shape, so that the third air guiding ring 33 is a diffusion-shaped air duct, and is a vortex motion generated by the air flow, and a part of the surface layer flows to the outflow region through both ends of the inlet, and acts as a surface layer separator, and after the surface layer is separated, friction force between the air flow and the inner wall of the third air guiding ring 33 is reduced, and vortex quantity of the air is reduced, thereby achieving the effect of reducing noise of the air conditioner outdoor unit 200.
Further, by connecting the fourth air guide ring 35 between the second air guide ring 32 and the third air guide ring 33, the curved surface body surrounded by the inner wall surface of the fourth air guide ring 35 has a cylindrical shape. First, the total length of the wind guide ring 100 may be adjusted by adjusting the length of the fourth wind guide ring 35; secondly, the whole air guide ring 100 is convenient to process and manufacture; finally, the airflow may be allowed to transition smoothly, further reducing noise.
In the present embodiment, the air guide ring 100 is integrally formed with the front panel 10, so that air is prevented from flowing out from the gap between the air guide ring and the front panel 10, thereby causing a loss of air volume. In addition, the steps of installing the air conditioner outdoor unit 200 can be simplified, and the assembling efficiency of the air conditioner outdoor unit 200 can be improved. Of course, the skilled person can set the wind guiding ring 100 and the front panel 10 as a detachable connection structure according to actual needs, which will not be described herein.
Preferably, the air guiding ring 100 is provided with a plurality of openings for communicating the air flow channel in the air guiding ring 100 with the space outside the air guiding ring 100. Since the air guide ring 100 is provided with a plurality of openings, and forms a relatively sealed cavity with the receiving cavity of the outdoor unit 200, a resonator is formed. When the frequency of the incident sound wave is close to the natural frequency of the resonator, the air column with the aperture of the through hole can generate strong vibration, and the sound energy is consumed by overcoming friction resistance in the vibration process, so that the sound elimination effect is achieved.
Specifically, the air guide ring 100 has a circular hole, an elliptical hole, or a hole with an irregular hole edge. The shape of the opening of the air guide ring 100 can be selected by a technician according to actual conditions, and only a good noise reduction effect is required to be achieved, and details are omitted.
The present invention also provides an air conditioner outdoor unit 200, and the air conditioner outdoor unit 200 includes the air guide ring 100, and the specific structure of the air guide ring 100 refers to the above embodiments, and since the air conditioner outdoor unit 200 adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
The present invention also provides an air conditioner, which includes a wind guiding ring 100 or an air conditioning outdoor unit 200, and specific structures of the wind guiding ring 100 and the air conditioning outdoor unit 200 refer to the above embodiments, and since the air conditioner adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. The utility model provides a wind-guiding circle, is used for the air condensing units, the air condensing units includes front panel and axial fan blade, the wind-guiding circle install in the front panel, form ventilation wind channel in the wind-guiding circle, its characterized in that, the wind-guiding circle includes first wind-guiding circle, second wind-guiding circle and the third wind-guiding circle that is connected gradually to keeping away from the front panel direction, first wind-guiding circle, second wind-guiding circle and the coaxial setting of third wind-guiding circle; the first air guide ring is abutted against the surface of the front panel, which faces the axial flow fan blades, and the cross section area of the second air guide ring is gradually reduced towards the direction away from the front panel; the axial flow fan blade passes through the third air guide ring and stretches into the second air guide ring;
the cross section area of the third air guide ring gradually increases towards the direction away from the front panel;
a fourth air guide ring is further connected between the second air guide ring and the third air guide ring, and a curved surface body surrounded by the inner wall surface of the fourth air guide ring is cylindrical;
The areas of the cross sections of the first wind guide rings, which are sectioned by the planes perpendicular to the central axis of the first wind guide rings, are equal; a fifth air guide ring is arranged between the first air guide ring and the front panel, and the cross section area of the fifth air guide ring is gradually reduced towards the direction away from the front panel;
the second wind-guiding ring comprises a first wind-guiding ring connected with the first wind-guiding ring, a second wind-guiding ring connected with the first wind-guiding ring, and a third wind-guiding ring connected between the second wind-guiding ring and the third wind-guiding ring, wherein the shape of a curved surface body surrounded by the inner wall surface of the first wind-guiding ring is a horn shape, the shape of a curved surface body surrounded by the inner wall surface of the second wind-guiding ring is a circular truncated cone shape, and the shape of a curved surface body surrounded by the inner wall surface of the third wind-guiding ring is a horn shape.
2. The air guide ring according to claim 1, wherein a difference between a distance from a side wall of an end of the second air guide ring having the smallest cross-sectional area to the center axis of the air guide ring and a distance from a side wall of the first air guide ring to the center axis of the air guide ring is L, and L satisfies the relationship: l is more than or equal to 3mm and less than or equal to 20mm.
3. The air guide ring of claim 2, wherein the second air guide ring extends in an axial direction for a length H satisfying the relationship: h is more than or equal to 5mm and less than or equal to 31mm.
4. A wind-guiding ring according to any one of claims 1 to 3, wherein the curved surface formed by the inner wall surfaces of the first wind-guiding ring, the second wind-guiding ring and the third wind-guiding ring is the same as the curved surface formed by the rotation of the axial flow fan blade around the central axis of the axial flow fan blade.
5. An air conditioner outdoor unit, comprising the air guide ring according to any one of claims 1 to 4, wherein the air conditioner outdoor unit comprises a front panel and an axial flow fan blade, an air outlet is formed in the front panel, and the air guide ring is installed at the air outlet and communicates the ventilation duct with the air outlet.
6. The outdoor unit of claim 5, wherein the air guide ring is integrally formed with the front panel.
7. An air conditioner, characterized in that the air conditioner comprises the air guide ring as claimed in any one of claims 1 to 4; or, the air conditioner includes the air conditioner outdoor unit as claimed in claim 5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426217.7A CN108507043B (en) | 2018-05-04 | 2018-05-04 | Air guide ring, air conditioner outdoor unit and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426217.7A CN108507043B (en) | 2018-05-04 | 2018-05-04 | Air guide ring, air conditioner outdoor unit and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN108507043A CN108507043A (en) | 2018-09-07 |
| CN108507043B true CN108507043B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810426217.7A Active CN108507043B (en) | 2018-05-04 | 2018-05-04 | Air guide ring, air conditioner outdoor unit and air conditioner |
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| CN (1) | CN108507043B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288562B (en) * | 2020-03-30 | 2024-07-30 | 宁波奥克斯电气股份有限公司 | Flow guiding ring and air conditioner |
| CN114688717B (en) * | 2020-12-30 | 2023-09-05 | 广东美的白色家电技术创新中心有限公司 | Air guide structure, fan structure and air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010236371A (en) * | 2009-03-30 | 2010-10-21 | Daikin Ind Ltd | Axial blower, air conditioner, and ventilation fan |
| CN208186649U (en) * | 2018-05-04 | 2018-12-04 | 广东美的制冷设备有限公司 | Air-ducting ring, air-conditioner outdoor unit and air conditioner |
-
2018
- 2018-05-04 CN CN201810426217.7A patent/CN108507043B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010236371A (en) * | 2009-03-30 | 2010-10-21 | Daikin Ind Ltd | Axial blower, air conditioner, and ventilation fan |
| CN208186649U (en) * | 2018-05-04 | 2018-12-04 | 广东美的制冷设备有限公司 | Air-ducting ring, air-conditioner outdoor unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108507043A (en) | 2018-09-07 |
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