CN112880026A - Air conditioner indoor unit and air conditioner - Google Patents
Air conditioner indoor unit and air conditioner Download PDFInfo
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- CN112880026A CN112880026A CN202110308183.3A CN202110308183A CN112880026A CN 112880026 A CN112880026 A CN 112880026A CN 202110308183 A CN202110308183 A CN 202110308183A CN 112880026 A CN112880026 A CN 112880026A
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- 238000004378 air conditioning Methods 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims description 13
- 239000011358 absorbing material Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction 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
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
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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
- F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
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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
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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
- F24F2013/242—Sound-absorbing material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an air conditioner indoor unit and an air conditioner, which are used for relieving the problems of low fan efficiency, improvement of fan incoming flow and improvement of unit air outlet uniformity. Wherein, machine in the air conditioning includes: the shell is provided with a lower air inlet and a side air inlet; the fan is arranged in the shell and comprises a first air port part positioned below the central axis of the fan and a second air port part positioned above the central axis of the fan; the flow guide assembly is arranged in the air channel between the fan and the lower air inlet; the guide assembly divides the air duct into a first air duct and a second air duct, wherein the first air duct is configured to guide part of air flow of the lower air opening to the first air opening part or guide the air flow of the first air opening part to the lower air opening; the second air duct is configured to guide part of the air flow of the lower air opening to the second air opening portion or guide the air flow of the second air opening portion to the lower air opening. The invention can balance the air inlet quantity of the first air port part and the second air port part of the fan, reduce the air outlet resistance and power consumption, improve the efficiency of the fan and reduce the noise.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner.
Background
The air outlet mode of the air duct machine comprises lower air outlet and side air outlet. When the air outlet mode of the air duct machine is downward air outlet, a plurality of strands of high-speed air flows discharged by the fan are intersected to form a vortex, so that the air speed of the lower edge of the air outlet of the fan is high, the air outlet above the fan is blocked, the whole flow area of the whole machine is influenced, the energy loss of the air flow is caused, and the air quantity of the unit is reduced; meanwhile, because a plurality of air flows are intersected to form a vortex, the local air speed is particularly high, and high noise can be generated.
Disclosure of Invention
Some embodiments of the invention provide an air conditioner indoor unit and an air conditioner, which are used for relieving the problem of low fan efficiency.
Some embodiments of the present invention provide an indoor unit of an air conditioner, including:
the shell is provided with a lower air inlet and a side air inlet;
the fan is arranged in the shell and comprises a first air port part positioned below the central axis of the fan and a second air port part positioned above the central axis of the fan; and
the flow guide assembly is arranged in the air channel between the fan and the lower air inlet; the guide assembly divides the air duct into a first air duct and a second air duct, wherein the first air duct is configured to guide part of the air flow of the lower air opening to the first air opening part or guide the air flow of the first air opening part to the lower air opening; the second air duct is configured to guide a part of the air flow of the lower air opening to the second air opening portion, or guide the air flow of the second air opening portion to the lower air opening.
In some embodiments, the flow directing assembly comprises:
the first air duct extends between a position close to the lower air inlet and a position close to a central axis of the fan, and the first air duct is formed between the first air guide body and the fan; and
the second flow guide body extends between the outer edge of the lower air opening and the top of the fan, and the second air channel is formed between the first flow guide body and the second flow guide body.
In some embodiments, an outer profile of the first flow conductor is arcuate, and/or an outer profile of the second flow conductor is arcuate.
In some embodiments of the present invention, the,
the position of the first flow guiding body closest to the lower air inlet is a first end of the first flow guiding body, the position of the first flow guiding body closest to a central axis of a fan is a second end of the first flow guiding body, and the distance between the first end of the first flow guiding body and the fan is greater than the distance between the second end of the first flow guiding body and the fan; and/or the presence of a gas in the gas,
the position of the second flow guiding body, which is located at the outer edge of the lower air inlet, is a first end of the second flow guiding body, the position of the second flow guiding body, which is located at the top of the fan, is a second end of the second flow guiding body, and the distance between the first end of the second flow guiding body and the fan is greater than the distance between the second end of the second flow guiding body and the fan.
In some embodiments, the first fluid guide is configured as a first hollow structure, and the first hollow structure is filled with heat-insulating sound-absorbing materials; and/or the second fluid guide body is constructed into a second hollow structure, and the second hollow structure is filled with heat-insulating sound-absorbing materials.
In some embodiments, a surface of the first current carrier is provided with holes communicating with the first hollow structure, and/or a surface of the second current carrier is provided with holes communicating with the second hollow structure.
In some embodiments, a portion of the first current carrier closest to the downdraft opening is a first end of the first current carrier, a distance between an inner edge of the downdraft opening and the first end of the first current carrier is a, a distance between an outer edge of the downdraft opening and the first end of the first current carrier is B, and a/B is greater than or equal to 1.
In some embodiments of the present invention, the,
E+G≤C≤F-G；
wherein,
e is the distance between the lower end of the air port of the fan and the lower air port;
g is the width of the air port of the fan, and the air port of the fan is annular;
c is the distance between the second end of the first flow guiding body and the lower air inlet, and the part of the first flow guiding body closest to the central axis of the fan is the second end of the first flow guiding body;
and F is the distance between the second end of the second flow guide body and the lower air inlet, and the part of the second flow guide body positioned at the top of the fan is the second end of the second flow guide body.
In some embodiments of the present invention, the,
F≥D+E
and D is the diameter of the air port of the fan.
Some embodiments of the present invention provide an air conditioner, which includes the above air conditioner indoor unit.
Based on the technical scheme, the invention at least has the following beneficial effects:
in some embodiments, because the flow guide assembly is arranged in the air duct between the fan and the lower air inlet, the flow guide assembly divides the air duct into the first air duct and the second air duct, when the indoor unit enters air from the lower air inlet, the air inlet amount in the first air duct and the second air duct can be balanced through the flow guide effect of the flow guide assembly, the problem of unbalanced air inlet amount of the first air inlet part and the second air inlet part of the fan is solved, the fan is prevented from running under the deviated working condition, the power consumption is low under the same air amount, the fan efficiency is improved, and the fan noise of the unit is reduced; and when the indoor unit is discharged from the lower air outlet, the intersection fusion and sharp turning of a plurality of high-speed air flows are avoided through the flow guide effect of the flow guide assembly, so that the resistance and the power consumption are reduced, the efficiency of the fan is improved, the noise is reduced, and the flow area of the outlet of the unit is increased.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic view of a side air-out mode of an indoor unit without a flow guide assembly;
fig. 2 is a schematic view of a lower air outlet mode of an indoor unit without a flow guide assembly;
FIG. 3 is a schematic view of a simulation of inlet airflow velocity in the side-blowing mode shown in FIG. 1;
FIG. 4 is a schematic diagram illustrating a simulation of the outlet airflow velocity in the lower outlet mode shown in FIG. 2;
fig. 5 is a schematic view illustrating a flow guide assembly disposed in an indoor unit according to some embodiments of the present invention;
fig. 6 is a schematic view illustrating holes formed in a flow guide assembly of an indoor unit according to some embodiments of the present invention;
FIG. 7 is a schematic view of a flow directing assembly provided in accordance with some embodiments of the present invention;
fig. 8 is a schematic size relationship diagram of a flow guide assembly of an indoor unit according to some embodiments of the present invention;
fig. 9 is a schematic view of a flow directing assembly according to further embodiments of the present invention.
The reference numbers in the drawings illustrate the following:
1-a shell; 11-lower tuyere; 12-side tuyere;
2-a fan; 21-a first tuyere portion; 22-a second tuyere portion;
3-a flow guide assembly; 31-a first flow conductor; 311-a first hollow structure; 32-a second flow conductor; 321-a second hollow structure; 33-well;
41-a first air duct; 42-a second air duct;
5-a heat exchanger;
s1 — first region; s2 — second area.
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. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
As shown in fig. 1 and 2, the indoor unit of the duct machine includes a casing 1, the casing 1 is provided with a lower air inlet 11 and a side air inlet 12, a fan 2 and a heat exchanger 5 are arranged in the casing 1, and the heat exchanger 5 is located between the fan 2 and the side air inlet 12. As shown in fig. 1, the air outlet mode of the air duct indoor unit includes side air outlet. As shown in fig. 2, the air outlet mode of the air duct indoor unit includes a lower air outlet mode.
As shown in fig. 3, the flow velocity of the inlet air at the bottom air inlet 11 of the indoor unit is simulated in the state that the side air outlet 12 of the indoor unit is discharging air, and it can be known from the simulation chart shown in fig. 3 that the air inlet of the fan 2 is closer to the area of the bottom air inlet 11 of the indoor unit, for example, the first area S1 shown in fig. 3, because of the sharp turning of the inlet air, the air velocity is higher but the air volume is not necessarily large, so that the air volume distribution is not uniform no matter the bottom air inlet 11 of the indoor unit or the air inlet of the fan 2, and the actual operation condition of the fan is not at the fan design point. The attack angle of the air flow introduced into the fan blade is changed, the air flow impact is generated on the air inlet blade of the fan, the periodic pressure pulsation is caused, the unit generates obvious noise (fan rotation noise) during operation, meanwhile, because the attack angle of the air flow entering the fan blade does not accord with the design angle of the fan blade, the air flow separation is possibly generated at the inlet and the outlet of the fan blade, a falling vortex is formed, and the vortex forms an overflowing area blocking the fan blade, so the air outlet area of the fan is reduced, the air outlet efficiency is reduced, and even the pressure is reduced. Vortex shedding can also cause the problems of fan blade wall surface and noise flowing in the fan. After the fan bias flow is designed to be at the working point, even airflow in the fan flows back, the efficiency is further reduced, and more power needs to be consumed by the fan (more typical relieving modes such as rotating speed increase, diameter increase and the like) for the unit to meet the requirements of the same air quantity and outlet pressure.
As shown in fig. 4, in the state of the air outlet of the lower air outlet 11 of the indoor unit, the airflow velocity at the lower air outlet 11 of the indoor unit is simulated, and according to the simulation chart shown in fig. 4, the multiple high-speed airflows discharged from the air outlet part above the central axis of the fan and the air outlet part below the central axis of the fan are converged to form a vortex, for example, the second area S2 shown in fig. 4, because the space of the lower air outlet flow channel at 90 ° is small, the multiple high-speed airflows are not converged and fused, and are directly supplied on the wall surface of the lower air outlet flow channel in a fast converging and turning manner, because of a sharp turning and high wind speed, the air outlet of the fan has high loss, and the air velocity at the lower edge of the air outlet of the fan is high, the condition of obstructing the air outlet above the fan is formed, and the overall flow area of the, resulting in uneven temperature distribution at the air outlet and general comfort experience for users. Moreover, since the air flows meet to form a vortex, the local wind speed is particularly high, and high noise is generated.
Based on this, some embodiments of the present disclosure provide an indoor unit of an air conditioner, which is used for alleviating the problem of low efficiency of a fan.
As shown in fig. 5, in some embodiments, the air conditioning indoor unit includes a casing 1, a fan 2, and a guide assembly 3.
The casing 1 is provided with a lower tuyere 11 and a side tuyere 12.
In casing 1 was located to fan 2, fan 2 included the wind gap, and the wind gap includes the first wind gap portion 21 that is located its axis below and is located the second wind gap portion 22 of its axis top. The air port of the fan is an annular air port.
The flow guide assembly 3 is arranged in an air channel between the fan 2 and the lower air inlet 11; the guide assembly 3 divides the air duct into a first air duct 41 and a second air duct 42. Wherein the first air duct 41 is configured to guide part of the air flow of the lower air opening 11 to the first air opening portion 21, or guide the air flow of the first air opening portion 21 to the lower air opening 11; the second air duct 42 is configured to guide a part of the air flow of the lower air opening 11 to the second air opening portion 22, or guide the air flow of the second air opening portion 22 to the lower air opening 11.
Because the flow guide component 3 is arranged between the fan 2 and the lower air port 11, the flow guide component 3 divides the air channel into the first air channel 41 and the second air channel 42, when the indoor unit is used for air inlet of the lower air port 11, the first air channel 41 guides partial air flow of the lower air port 11 to the first air port part 21, and the second air channel 42 guides partial air flow of the lower air port 11 to the second air port part 22, so that the problem of uneven air inlet quantity of the first air port part 21 and the second air port part 22 of the fan 2 is solved, the fan is prevented from running under a deviated working condition, the consumed power is low under the same air quantity, the fan efficiency is improved, and the fan noise of the unit is reduced; meanwhile, due to the flow guiding effect of the flow guiding assembly 3, the incidence angle of the inlet airflow of the fan 2 conforms to the design angle of the fan blade, so that airflow separation is avoided, and the flow area of the fan blade is increased; and due to the diversion effect of the diversion component 3, the inlet air temperature of the fan 2 is uniform, and the use comfort of a user is improved.
Because the flow guide component 3 is arranged between the fan 2 and the lower air port 11, the air channel is divided into the first air channel 41 and the second air channel 42 by the flow guide component 3, when the indoor unit is used for supplying air into the side air port 12, and the air is discharged from the lower air port 11, the first air channel 41 guides the air flow of the first air port 21 to the lower air port 11, and the second air channel 42 guides the air flow of the second air port 22 to the lower air port 11, so that the intersection, fusion and sharp turning of a plurality of high-speed air flows are avoided, in the process of guiding the air flow to the lower air port 11 through the flow guide component 3, under the same air volume, the internal resistance of the unit is reduced, the consumed power is reduced, the noise is reduced, the over-flow area of the unit outlet is increased, and the condensation condition generated.
In some embodiments, the fan 2 comprises a steerable fan comprising an air inlet and an air outlet. When the lower air inlet 11 of the indoor unit is used for air inlet, the air inlet of the steerable fan is close to the lower air inlet 11, and the air outlet of the steerable fan faces to the side air inlet 12. When the side air inlet 12 of the indoor unit is used for air inlet, the steerable fan rotates 180 degrees, the air inlet of the steerable fan faces the side air inlet 12, and the air outlet of the steerable fan is close to the lower air inlet 11.
Of course, the fan 2 is not limited to a steerable fan.
In some embodiments, flow directing assembly 3 includes a first flow conductor 31 and a second flow conductor 32.
The first current carrier 31 extends between a position close to the downdraft opening 11 and a position close to a central axis of the fan 2, and the first air duct 41 is formed between the first current carrier 31 and the fan 2.
The second flow guiding body 32 extends between the outer edge of the downdraft opening 11 and the top of the fan 2, and a second air duct 42 is formed between the first flow guiding body 31 and the second flow guiding body 32.
The outer edge of the lower air inlet 11 refers to the side of the lower air inlet 11 far away from the fan 2, and the inner edge of the lower air inlet 11 refers to the side of the lower air inlet 11 close to the fan 2.
In some embodiments, the outer profile of first current carrier 31 is arcuate. Optionally, first current carrier 31 is convex in a direction away from fan 2.
In some embodiments, the outer profile of second flow conductor 32 is arcuate. Optionally, second current carrier 32 is convex in a direction away from fan 2.
In some embodiments, a portion of first current carrier 31 closest to lower tuyere 11 is a first end of first current carrier 31, a portion of first current carrier 31 closest to a central axis of fan 2 is a second end of first current carrier 31, and a distance between the first end of first current carrier 31 and fan 2 is greater than a distance between the second end of first current carrier 31 and fan 2.
In some embodiments, a position of the second current carrier 32 at the outer edge of the lower tuyere 11 is a first end of the second current carrier 32, a position of the second current carrier 32 at the top of the fan 2 is a second end of the second current carrier 32, and a distance between the first end of the second current carrier 32 and the fan 2 is greater than a distance between the second end of the second current carrier 32 and the fan 2.
Optionally, a first end of the second flow guiding body 32 abuts or is connected to an outer edge of the lower wind gap 11, and a second end of the second flow guiding body 32 abuts or is connected to a top of the fan 2. The distance between the second end of the second current carrier 32 and the fan 2 is zero.
In some embodiments, the first flow guiding body 31 is configured as a first hollow structure 311, and the first hollow structure 311 of the first flow guiding body 31 is filled with a heat insulating and sound absorbing material, so as to reduce the weight of the flow guiding assembly 3 and reduce noise.
In some embodiments, the second flow guiding body 32 is configured as a second hollow structure 321, and the second hollow structure 321 is filled with a heat insulating and sound absorbing material, so as to reduce the weight of the flow guiding assembly 3 and reduce noise.
In some embodiments, as shown in fig. 6 and 7, a surface of first current carrier 31 is provided with holes 33 communicating with first hollow structure 311. The air current passes through the first guide body 31 and the holes 33 arranged on the wall surface thereof, and the heat-insulating sound-absorbing material in the first hollow structure 311 absorbs sound, so that the air inlet and outlet noise of the fan is reduced.
In some embodiments, as shown in fig. 6 and 7, the surface of the second flow conductor 32 is provided with holes 33 communicating with the second hollow structure 321. The air current passes through the second guide body 32 and the holes 33 arranged on the wall surface thereof, and the heat-insulating sound-absorbing material in the second hollow structure 321 absorbs sound, so that the air inlet and outlet noise of the fan is reduced.
Here, both the holes 33 provided on the surface of the first current carrier 31 and the holes 33 provided on the surface of the second current carrier 32 are sound absorbing holes.
As shown in fig. 9, in other embodiments, the surface of first current carrier 31 may not be provided with sound absorbing holes, and the surface of second current carrier 32 may not be provided with sound absorbing holes.
In some embodiments, as shown in fig. 8, a portion of the first current carrier 31 closest to the downdraft opening 11 is a first end of the first current carrier 31, a distance between an inner edge of the downdraft opening 11 and the first end of the first current carrier 31 is a, a distance between an outer edge of the downdraft opening 11 and the first end of the first current carrier 31 is B, and a/B is greater than or equal to 1, preferably a/B > 1.
Because the distance a between the inner edge of the lower air inlet 11 and the first end of the first flow guiding body 31 can affect the air flow in the first air duct 41, the turning angle of the first air duct 41 is rapid, the distance from the first air inlet 21 of the fan 2 to the lower air inlet 11 is short, the air flow is easy to enter and exit, the air flow speed is rapid, and the air volume is small; the distance between the outer edge of the lower air port 11 and the first end of the first flow guiding body 31 is B, which affects the air flow in the second air duct 42, the turning radius of the second air duct 42 is large, under the same condition, the resistance of the second air duct 42 is smaller than that of the first air duct 41, the air inflow of the second air duct 42 is large, and by setting a/B to be larger than or equal to 1, the balance of the air flow in the first air duct 41 and the second air duct 42 is facilitated, and the air flow entering the first air port part 21 and the second air port part 22 is equivalent.
If A/B is less than 1, the air inlet condition of the first air inlet part 21 of the fan 2 is poor, and the air inlet condition of the second air inlet part 22 is good, so that the fan is unbalanced in operation, the fan operates in a deviation working condition, the air volume is reduced, and the operation tone quality is poor.
In some embodiments, E + G C F G facilitates promoting airflow equalization within the first and second air paths 41, 42.
Wherein,
e is the distance between the lower end of the air port of the fan 2 and the lower air port 11;
g is the width of the air port of the fan 2, and the air port of the fan 2 is annular;
c is a distance between the second end of the first flow guiding body 31 and the lower air inlet 11, and a portion of the first flow guiding body 31 closest to the central axis of the fan 2 is the second end of the first flow guiding body 31;
f is a distance between the second end of the second flow guiding body 32 and the lower wind inlet 11, and a portion of the second flow guiding body 32 located at the top of the fan 2 is the second end of the second flow guiding body 32.
In some embodiments, F ≧ D + E is provided for facilitating equalization of air flow in the first air duct 41 and the second air duct 42, and the amount of air flow entering the first air duct portion 21 and the second air duct portion 22 is equivalent.
Wherein D is the diameter of the tuyere of the fan 2.
In some embodiments, first current carrier 31 may be formed by a multi-strand bezier curve fit, and first current carrier 31 may also be formed by a bezier curve plus partial straight line fit.
In some embodiments, the second current carrier 32 may be formed by a multi-strand bezier curve fit, and the second current carrier 32 may also be formed by a bezier curve + partial straight line fit.
The air inlet of the fan is guided through the guide curves, the air inlet air flow is guided into the fan in a balanced mode, the incoming flow of the fan is balanced relatively, meanwhile, the air inlet angle is attached to the air inlet angle of a fan blade as much as possible through the angle guide of the guide body, unnecessary noise (noise is higher and abnormal noise and the like) caused by impact of incoming air and incoming material of the fan is reduced, the air inlet efficiency of the fan is improved, the operation condition of the fan under the deviated working condition is improved, the probability of deflection operation of a motor shaft caused by the operation under the deviated working condition is reduced, and the problems that bearing abrasion and fan vibration are caused are avoided.
In addition, the air outlet of the fan is guided through the plurality of diversion curves, the intersection of the upper air outlet surface and the lower air outlet surface of the fan and the formation of vortex in the air outlet channel are reduced, and the problems that the air outlet channel is blocked and the air quantity of the whole fan is reduced are avoided.
In some embodiments, the number of the fans 2 arranged in the housing 1 is three, and three fans 2 are arranged side by side, and correspondingly, the number of the flow guide assemblies 3 arranged in the housing 1 is three, and three flow guide assemblies 3 are arranged side by side and integrally, as shown in fig. 7.
In some embodiments, as shown in fig. 7, a partition plate is disposed between two adjacent flow guide assemblies 3, the partition plate may be a hollow structure, a heat insulation and sound absorption material is filled in the hollow structure, and a sound absorption hole communicating with the hollow structure is disposed on a surface of the partition plate.
In other embodiments, as shown in fig. 9, a partition plate is arranged between two adjacent flow guide assemblies 3, and the surface of the partition plate is not provided with sound absorption holes.
Some embodiments also provide an air conditioner, which includes the air conditioner indoor unit.
In some embodiments, the air conditioner includes a ducted air conditioner.
Based on the embodiments of the invention described above, the technical features of one of the embodiments can be advantageously combined with one or more other embodiments without explicit negatives.
In the description of the present invention, it should be understood that the terms "first", "second", "third", etc. are used to define the components, and are used only for the convenience of distinguishing the components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. An indoor unit of an air conditioner, comprising:
the shell (1) is provided with a lower air inlet (11) and a side air inlet (12);
the fan (2) is arranged in the shell (1), and the fan (2) comprises a first air inlet part (21) positioned below the central axis of the fan and a second air inlet part (22) positioned above the central axis of the fan; and
the flow guide assembly (3) is arranged in an air channel between the fan (2) and the lower air inlet (11); the air guide assembly (3) divides the air duct into a first air duct (41) and a second air duct (42), wherein the first air duct (41) is configured to guide part of the air flow of the lower air opening (11) to the first air opening part (21) or guide the air flow of the first air opening part (21) to the lower air opening (11); the second air duct (42) is configured to guide a part of the air flow of the lower air opening (11) to the second air opening portion (22) or guide the air flow of the second air opening portion (22) to the lower air opening (11).
2. An air-conditioning indoor unit according to claim 1, wherein the guide member (3) comprises:
a first flow conductor (31) extending between a position near the lower air inlet (11) and a position near a central axis of the fan (2), the first air duct (41) being formed between the first flow conductor (31) and the fan (2); and
a second flow conductor (32) extending between an outer edge of the lower air opening (11) and a top of the fan (2), the second air duct (42) being formed between the first flow conductor (31) and the second flow conductor (32).
3. The indoor unit of claim 2, wherein an outer contour of the first baffle (31) is curved, and/or an outer contour of the second baffle (32) is curved.
4. An indoor unit of an air conditioner according to claim 2,
the position, closest to the lower air inlet (11), of the first flow guide body (31) is a first end of the first flow guide body (31), the position, closest to a central axis of the fan (2), of the first flow guide body (31) is a second end of the first flow guide body (31), and the distance between the first end of the first flow guide body (31) and the fan (2) is greater than the distance between the second end of the first flow guide body (31) and the fan (2); and/or the presence of a gas in the gas,
the position, located at the outer edge of the lower air inlet (11), of the second flow guide body (32) is a first end of the second flow guide body (32), the position, located at the top of the fan (2), of the second flow guide body (32) is a second end of the second flow guide body (32), and the distance between the first end of the second flow guide body (32) and the fan (2) is larger than the distance between the second end of the second flow guide body (32) and the fan (2).
5. The indoor unit of air conditioner according to claim 2, wherein the first baffle (31) is constructed as a first hollow structure (311), and the first hollow structure (311) is filled with heat insulating and sound absorbing material; and/or the second flow guide body (32) is constructed into a second hollow structure (321), and the second hollow structure (321) is filled with heat-insulating sound-absorbing materials.
6. The indoor unit of claim 5, wherein the first current carrier (31) has a surface provided with holes communicating with the first hollow structure (311) and/or the second current carrier (32) has a surface provided with holes communicating with the second hollow structure (321).
7. The indoor unit of claim 2, wherein a portion of the first current carrier (31) closest to the lower air inlet (11) is a first end of the first current carrier (31), a distance between an inner edge of the lower air inlet (11) and the first end of the first current carrier (31) is a, a distance between an outer edge of the lower air inlet (11) and the first end of the first current carrier (31) is B, and a/B is not less than 1.
8. An indoor unit of an air conditioner according to claim 2 or 7,
E+G≤C≤F-G；
wherein,
e is the distance between the lower end of the air port of the fan (2) and the lower air port (11);
g is the width of the air port of the fan (2), and the air port of the fan (2) is annular;
c is the distance between the second end of the first flow guide body (31) and the lower air inlet (11), and the part, closest to the central axis of the fan (2), of the first flow guide body (31) is the second end of the first flow guide body (31);
f is the distance between the second end of the second flow guide body (32) and the lower air inlet (11), and the part of the second flow guide body (32) positioned at the top of the fan (2) is the second end of the second flow guide body (32).
9. The indoor unit of an air conditioner according to claim 8,
F≥D+E
wherein D is the diameter of the air port of the fan (2).
10. An air conditioner characterized by comprising the indoor unit of an air conditioner according to any one of claims 1 to 9.
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| CN202110308183.3A CN112880026A (en) | 2021-03-23 | 2021-03-23 | Air conditioner indoor unit and air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811738A (en) * | 2022-03-18 | 2022-07-29 | 青岛海尔空调电子有限公司 | Air conditioner indoor unit and air conditioner |
| WO2023087968A1 (en) * | 2021-11-20 | 2023-05-25 | 珠海格力电器股份有限公司 | Duct type air conditioner |
| CN117450092A (en) * | 2023-12-25 | 2024-01-26 | 珠海格力电器股份有限公司 | Fan device, air outlet structure and air conditioner |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090023889A (en) * | 2007-09-03 | 2009-03-06 | 주식회사 수성공조 | Corner plat duct for public building ventilation |
| CN202947276U (en) * | 2012-11-29 | 2013-05-22 | 浙江华健医用工程有限公司 | Pipeline damping bend for clean operating room |
| CN207815500U (en) * | 2017-02-15 | 2018-09-04 | 广东志高空调有限公司 | A kind of cabinet air-conditioner |
| CN109367753A (en) * | 2018-07-30 | 2019-02-22 | 沪东中华造船(集团)有限公司 | A kind of ship loading cabin noise elimination wind conduit |
| CN110793177A (en) * | 2018-08-01 | 2020-02-14 | 青岛海尔空调器有限总公司 | Air outlet structure of air conditioner and cabinet air conditioner |
| CN111140270A (en) * | 2019-12-30 | 2020-05-12 | 淄博矿业集团有限责任公司岱庄煤矿 | Mine ventilation energy-saving adjusting method |
| CN111853939A (en) * | 2020-07-09 | 2020-10-30 | 珠海格力电器股份有限公司 | Air conditioner and air outlet control method thereof |
| CN112212491A (en) * | 2020-10-26 | 2021-01-12 | 珠海格力电器股份有限公司 | Machine and air conditioner in spiral case, air conditioning |
| CN112377462A (en) * | 2020-10-13 | 2021-02-19 | 宁波方太厨具有限公司 | Flow guide device, centrifugal fan applying flow guide device and range hood |
| CN112413622A (en) * | 2020-11-20 | 2021-02-26 | 西安热工研究院有限公司 | Flue structure and method for reducing dust deposition |
| CN215260107U (en) * | 2021-03-23 | 2021-12-21 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air conditioner |
-
2021
- 2021-03-23 CN CN202110308183.3A patent/CN112880026A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090023889A (en) * | 2007-09-03 | 2009-03-06 | 주식회사 수성공조 | Corner plat duct for public building ventilation |
| CN202947276U (en) * | 2012-11-29 | 2013-05-22 | 浙江华健医用工程有限公司 | Pipeline damping bend for clean operating room |
| CN207815500U (en) * | 2017-02-15 | 2018-09-04 | 广东志高空调有限公司 | A kind of cabinet air-conditioner |
| CN109367753A (en) * | 2018-07-30 | 2019-02-22 | 沪东中华造船(集团)有限公司 | A kind of ship loading cabin noise elimination wind conduit |
| CN110793177A (en) * | 2018-08-01 | 2020-02-14 | 青岛海尔空调器有限总公司 | Air outlet structure of air conditioner and cabinet air conditioner |
| CN111140270A (en) * | 2019-12-30 | 2020-05-12 | 淄博矿业集团有限责任公司岱庄煤矿 | Mine ventilation energy-saving adjusting method |
| CN111853939A (en) * | 2020-07-09 | 2020-10-30 | 珠海格力电器股份有限公司 | Air conditioner and air outlet control method thereof |
| CN112377462A (en) * | 2020-10-13 | 2021-02-19 | 宁波方太厨具有限公司 | Flow guide device, centrifugal fan applying flow guide device and range hood |
| CN112212491A (en) * | 2020-10-26 | 2021-01-12 | 珠海格力电器股份有限公司 | Machine and air conditioner in spiral case, air conditioning |
| CN112413622A (en) * | 2020-11-20 | 2021-02-26 | 西安热工研究院有限公司 | Flue structure and method for reducing dust deposition |
| CN215260107U (en) * | 2021-03-23 | 2021-12-21 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air conditioner |
Non-Patent Citations (3)
| Title |
|---|
| 王周君等: "：Optimization research on deflectors installed in right-angle bend tube with rectangular section", 华电技术, vol. 41, no. 8, 31 August 2019 (2019-08-31), pages 32 - 37 * |
| 程勉宏, 刘刚: "汽车空调风道设计对车内噪声的影响", 沈阳航空工业学院学报, no. 04, 30 August 2005 (2005-08-30), pages 33 - 35 * |
| 高甫生;王慕贤;: "空调机组噪声和气流阻力的关系", 暖通空调, no. 02, pages 44 - 49 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087968A1 (en) * | 2021-11-20 | 2023-05-25 | 珠海格力电器股份有限公司 | Duct type air conditioner |
| CN114811738A (en) * | 2022-03-18 | 2022-07-29 | 青岛海尔空调电子有限公司 | Air conditioner indoor unit and air conditioner |
| CN117450092A (en) * | 2023-12-25 | 2024-01-26 | 珠海格力电器股份有限公司 | Fan device, air outlet structure and air conditioner |
| CN117450092B (en) * | 2023-12-25 | 2024-04-16 | 珠海格力电器股份有限公司 | Fan device, air outlet structure and air conditioner |
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