CN111912023A - Vertical air conditioner indoor unit - Google Patents
Vertical air conditioner indoor unit Download PDFInfo
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- CN111912023A CN111912023A CN202010688082.9A CN202010688082A CN111912023A CN 111912023 A CN111912023 A CN 111912023A CN 202010688082 A CN202010688082 A CN 202010688082A CN 111912023 A CN111912023 A CN 111912023A
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- 230000001737 promoting effect Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 15
- 238000007664 blowing Methods 0.000 description 34
- 238000010438 heat treatment Methods 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000007493 shaping process 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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
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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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention provides a vertical air conditioner indoor unit, which comprises a shell, wherein the lower part of the shell is provided with an air inlet part, and the middle upper part of the shell is provided with a first air supply outlet and a second air supply outlet; the air duct is provided with a downward air inlet, a first air outlet facing the first air supply outlet and a second air outlet facing the second air supply outlet and used for guiding the air flow in the shell to the first air supply outlet and the second air supply outlet, and the inner wall of the air duct close to the first air outlet is in a tapered shape with a gradually-reduced overflowing section along the air flow direction; the heat exchanger is arranged in the air duct; the fan is arranged below the air inlet and used for promoting the airflow entering the shell from the air inlet part to enter the air channel through the air inlet; the flow guide piece is arranged in the air duct and limits an annular air outlet gap with the gradually reduced part of the flow guide piece, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the center of the airflow under the guidance of the inner wall of the air duct and sequentially flows out of the first air outlet and the first air supply outlet. The vertical air conditioner indoor unit has better remote air supply and powerful air supply effects.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a vertical air conditioner indoor unit.
Background
Compared with a wall-mounted air conditioner indoor unit, the vertical air conditioner indoor unit has the advantages of larger number of units and stronger refrigerating and heating capacity, and is usually placed in indoor spaces with larger areas, such as a living room.
Because the coverage area of the vertical air conditioner indoor unit is larger, the vertical air conditioner indoor unit needs to have stronger long-distance air supply capacity and strong air outlet capacity. In order to realize remote air supply of the existing products, the rotating speed of a fan is generally increased so as to improve the wind speed and the wind quantity. However, the improvement of the rotating speed of the fan can cause a series of problems such as the increase of the power of the air conditioner, the increase of noise and the like, and the user experience is influenced.
Disclosure of Invention
The present invention is directed to a vertical air conditioner indoor unit that overcomes or at least partially solves the above-mentioned problems, so as to achieve better remote air supply and strong air supply effects and to enrich the air supply modes thereof.
The invention further aims to enable the vertical air conditioner indoor unit to have an upward air outlet effect.
In particular, the present invention provides a vertical air conditioner indoor unit, comprising:
the lower part of the shell is provided with an air inlet part, and the middle upper part of the shell is provided with a first air supply outlet and a second air supply outlet;
the air duct is arranged in the shell, is provided with a downward air inlet, a first air outlet facing the first air supply outlet and a second air outlet facing the second air supply outlet and is used for guiding the air flow in the shell to the first air supply outlet and the second air supply outlet, and the inner wall of the air duct close to the first air outlet is in a tapered shape with a gradually-reduced overflowing section along the air flow direction;
the heat exchanger is arranged in the air duct and used for exchanging heat with air flow flowing through the air duct;
the fan is arranged below the air inlet and used for promoting the airflow entering the shell from the air inlet part to enter the air channel through the air inlet; and
the flow guide piece is arranged in the air duct and limits an annular air outlet gap with the gradually reduced part of the air duct, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the center direction of the airflow under the guidance of the inner wall of the air duct and sequentially flows out of the first air outlet and the first air supply outlet.
Optionally, the fan is a centrifugal fan with an axis extending horizontally along the transverse direction of the housing, and an outlet of the volute is connected with the air inlet; or the fan is an axial flow fan with an axis extending along the vertical direction, and the air outlet direction faces the air inlet.
Optionally, the centrifugal fan is a double suction centrifugal fan to draw air from both axial sides.
Optionally, the air inlet portion includes a plurality of air inlet openings provided on both lateral sides of the housing.
Optionally, the air inlet portion further comprises an air inlet grille located at the rear side of the housing.
Optionally, the first air supply outlet is arranged on the front side of the shell, and the first air outlet is arranged on the front side of the air duct; the number of the second air supply outlets is two, and the second air supply outlets are respectively arranged at the two transverse sides of the shell, and the number of the second air outlets is two, and the second air outlets are respectively arranged at the two transverse sides of the air duct; the first air supply outlet is higher than the two second air supply outlets.
Optionally, the first air supply outlet, the first air outlet and the flow guide piece are all oblong circles which are vertically arranged in the length direction on the whole; and each second air supply outlet is a long strip vertically arranged in the length direction.
Optionally, the air duct is configured to make the rising angle of the airflow at the bottom section of the annular air outlet gap larger than the declining angle of the airflow at the top section of the annular air outlet gap, so that the airflow at the bottom section of the annular air outlet gap drives the airflow at the rest sections to flow upward and forward together.
Optionally, the inner walls of the air duct adjacent to the top edge and the two lateral side edges of the first air outlet are gradually inclined from back to front towards the horizontal central axis of the first air outlet, and the inner wall adjacent to the bottom edge of the first air outlet extends along the vertical direction; and the position of the air inlet is lower than that of the first air outlet, so that the air flow flows to the flow guide piece from bottom to top.
Optionally, the outer surface of the flow guide comprises: the outer end face faces the first air outlet; the outer peripheral surface extends out from the edge of the outer end surface along the direction far away from the first air outlet; the air guide surface extends obliquely from the edge of the outer peripheral surface along the direction far away from the first air outlet and towards the central axis direction of the first air outlet; and the edge of the inner end surface is connected with the edge of the air guide surface.
In the vertical air conditioner indoor unit, the inner wall of the air duct close to the first air outlet is gradually reduced, so that the flow cross section is gradually reduced along the airflow direction. And an annular air outlet gap is defined between the flow guide piece inside the air duct and the tapered part of the inner wall of the air duct. Therefore, in the process that the air flow (heat exchange air flow, fresh air flow and the like) entering the air channel from the air inlet of the air channel flows to the first air outlet, the air flow is guided by the flow guide piece to blow towards the inner wall of the air channel and finally flows into the annular air outlet gap. Because the air outlet cross section of the annular air outlet gap is smaller, the air outlet speed is higher. The high-speed airflow is gradually converged towards the center of the airflow in the outward flowing process under the guidance of the gradually-reduced inner wall of the air duct to form a convergence effect, so that the wind power is stronger, the air supply distance is longer, and the requirements of the indoor unit of the vertical air conditioner on long-distance air supply and strong air supply are met.
The air supply modes of the vertical air conditioner indoor unit are very various, and the requirements of users are fully met. For example, the first air supply outlet can be started to supply air for a long distance, the second air supply outlet can be started to supply air for a normal short distance, or the first air supply outlet and the second air supply outlet are opened simultaneously to supply air for a long distance and a short distance simultaneously. In addition, an air guide mechanism can be arranged on the second air supply outlet to guide the air supply direction so as to make up the defect that the air supply direction of the first air supply outlet is difficult to adjust. Furthermore, the vertical air conditioner indoor unit of the invention is provided with two second air supply outlets which are respectively positioned at two lateral sides of the shell, and the first air supply outlet is arranged at the upper part of the front side of the shell and is higher than the second air supply outlet. Therefore, the air sent out by each air supply outlet is staggered in the vertical direction and the left-right direction, an encircling air supply effect is formed, the air supply airflow is more dispersed, the coverage space is larger, and the refrigerating/heating speed and the comfort level of the airflow of the indoor unit of the vertical air conditioner are improved.
Furthermore, in the indoor unit of the vertical air conditioner, the flow guide piece and the inner wall of the air duct define an annular air outlet gap to achieve the effect of increasing the air speed, and meanwhile, the air flow can be guided to the annular air outlet gap or forced to flow towards the annular air outlet gap so as to force the air flow to be subjected to polymerization and guide of the tapered inner wall, and a final polymerization air outlet effect is formed. The invention realizes a good polymerization air supply effect only by improving the air duct and additionally arranging the flow guide piece, has very simple structure and lower cost, is easy to realize mass production and popularization, and has very ingenious conception.
Furthermore, the vertical air conditioner indoor unit designs the shape of the air duct, and the uplifting angle of the airflow at the bottom section of the annular air outlet gap is larger than the downward inclination angle of the airflow at the top section. Because the rising angle of the air flow rising part is larger than the declining angle of the sinking part, the air flow mixed by the air flows can rise and flow integrally. In the refrigeration mode, the rising and flowing cold air can fully avoid the human body and scatter downwards after reaching the highest point, so that the shower type refrigeration experience is realized. Moreover, the air flow is blown upwards to be beneficial to improving the air supply distance.
In addition, the air inlet of the air duct is lower than the first air outlet, so that the bottom section of the annular air outlet gap is positioned at the upstream of the air duct compared with other sections, and air flow can flow into the bottom section more smoothly. The inner wall of the air duct close to the bottom section of the first air outlet extends along the vertical direction, so that the gap space of the bottom section of the annular air outlet gap is larger. Based on the design of the two points, the bottom section of the annular air outlet gap is larger in air volume and stronger in wind power compared with other sections. The bottom powerful airflow has advantages in the processes of impact and polymerization with the airflow on the upper part of the annular air outlet gap and the airflow on the two transverse sides, and the airflow is more powerfully driven to integrally lift and flow upwards and upwards together, so that a better lifting and air supply effect is realized.
Furthermore, the vertical air conditioner indoor unit of the invention designs the appearance of the flow guide piece specially, so that the flow guide piece comprises an outer end surface, an outer peripheral surface, a wind guide surface and an inner end surface. The annular air outlet gap is limited by the outer peripheral surface and the inner wall of the air duct, and the obliquely extending air guide surface is used for guiding the air flow, so that the air flow flows to the inner wall of the air duct more stably and smoothly, and the resistance loss is reduced. And the flow guide piece is connected and fastened with a mounting rod extending out of the inner wall of the air duct through the inner end surface. Because the mounting rod is thinner, the resistance of the airflow is smaller, and the airflow can more smoothly reach each position of the annular air outlet gap.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of an indoor unit of a floor type air conditioner according to an embodiment of the present invention;
fig. 2 is a front view of the indoor unit of the floor type air conditioner shown in fig. 1;
fig. 3 is an exploded view of the indoor unit of the floor type air conditioner shown in fig. 1;
fig. 4 is a cross-sectional view of the indoor unit of the floor air conditioner shown in fig. 2, taken along line N-N;
FIG. 5 is a schematic view of the top structure and flow guide of the air chute of FIG. 4 in cooperation;
FIG. 6 is an exploded schematic view of the air chute;
FIG. 7 is an exploded schematic view of the baffle;
fig. 8 is an exploded schematic view of a vertical air conditioner indoor unit according to another embodiment of the present invention;
fig. 9 is an exploded schematic view of a vertical air conditioning indoor unit according to still another embodiment of the present invention.
Detailed Description
The embodiment of the invention provides an indoor unit of a vertical air conditioner, which is an indoor part of a split air conditioner and is used for conditioning indoor air, such as refrigeration/heating, dehumidification, fresh air introduction and the like.
Fig. 1 is a schematic structural view of an indoor unit of a floor type air conditioner according to an embodiment of the present invention; fig. 2 is a front view of the indoor unit of the floor type air conditioner shown in fig. 1; fig. 3 is an exploded view of the indoor unit of the floor type air conditioner shown in fig. 1; fig. 4 is a cross-sectional view of the indoor unit of the floor air conditioner shown in fig. 2, taken along line N-N; FIG. 5 is a schematic view of the top structure of the air chute 20 and the deflector 30 of FIG. 4 in combination.
As shown in fig. 1 to 5, the indoor unit of a floor air conditioner according to an embodiment of the present invention may generally include a case 10, a duct 20, a fan 50, a baffle 30, and a heat exchanger 40.
The lower part of the casing 10 has an air inlet portion 13, and the middle upper part has a first air blowing port 11 and a second air blowing port 12. The air inlet 13 is used to allow indoor air to enter the casing 10, and the first and second blowing ports 11 and 12 are used to blow an air flow in the casing 10 into a room to condition the indoor air. The air flow can be cold air produced by the indoor unit of the vertical air conditioner in a refrigeration mode, hot air produced in a heating mode, or fresh air introduced in a fresh air mode, and the like. The number of the first air blowing opening 11 may be one or more, and the number of the second air blowing opening 12 may be one or more. The housing 10 may be formed by combining a front cabinet 101 and a rear cabinet 102.
An air duct 20 is provided in the casing 10, and has a downward air inlet 23, a first air outlet 21 facing the first air blowing port 11, and a second air outlet 22 facing the second air blowing port 12, for guiding the air flow in the casing 10 to the first air blowing port 11 and the second air blowing port 12. The fan 50 is installed below the air inlet 23 for promoting the air flow entering the housing 10 from the air inlet 13 to enter the air duct 20 through the air inlet 23.
The heat exchanger 40 is disposed inside the air duct 20, and is configured to exchange heat with air flowing through the air duct to form heat exchange air flow, i.e., cold air or hot air. The indoor unit of the floor air conditioner may be an indoor unit of an air conditioner that performs cooling/heating by a vapor compression refrigeration cycle system, and a refrigerant flows through the heat exchanger 40. The fan 50 causes the heat exchange air to flow through the air duct 20 to the first air blowing port 11 and the second air blowing port 12, and finally blows the heat exchange air from the first air blowing port 11 and the second air blowing port 12 into the room.
As shown in fig. 3 to 5, the inner wall of the air duct 20 adjacent to the first air outlet 21 is tapered, and the flow cross section of the inner wall gradually decreases along the airflow direction. In other words, the flow cross section of the air duct 20 becomes gradually smaller in the air flow direction adjacent to the first air outlet 21. The deflector 30 is disposed within the air duct 20 and defines an annular air outlet gap 25 with the aforementioned tapered portion of the air duct 20. The ring shape is not limited to a circular ring shape, and may be other various "ring shapes" such as a long circular ring shape, a square ring shape, an elliptical ring shape, and the like. The guiding element 30 is used for guiding the airflow to the annular air outlet gap 25, so that the airflow gradually converges toward the airflow center direction under the guidance of the inner wall of the air duct 20, and flows out of the first air outlet 21 and the first air supply outlet 11 in sequence (the airflow direction is indicated by arrows in fig. 4).
In the embodiment of the present invention, the air flow entering the air duct 20 from the air inlet 23 of the air duct 20 is guided by the flow guiding member 30 to blow toward the inner wall of the air duct 20 in the process of flowing to the first air outlet 21, and finally flows into the annular air outlet gap 25. Because the air outlet cross section of the annular air outlet gap 25 is smaller, the air outlet speed is higher. The high-speed airflow is gradually converged toward the center of the airflow in the process of flowing to the outer side of the first air outlet 21 under the guidance of the inner wall of the tapered air duct 20, so that a convergence effect is formed, the wind power is stronger, and the air supply distance is longer. Therefore, the embodiment of the invention meets the requirements of the vertical air conditioner indoor unit on long-distance air supply and strong air supply.
In addition, the air supply modes of the vertical air conditioner indoor unit provided by the embodiment of the invention are very various, and the requirements of users are fully met. For example, the first air supply outlet 11 may be activated to supply air for a long distance, the second air supply outlet 12 may be activated to supply air for a short distance, or the first air supply outlet 11 and the second air supply outlet 12 may be activated to supply air for a short distance and a short distance simultaneously. In addition, an air guide mechanism may be disposed at the second air blowing port 12 to guide the air blowing direction, so as to make up for the defect that the air blowing direction of the first air blowing port 11 is not easy to adjust.
In the indoor unit of the vertical air conditioner of the embodiment of the invention, the flow guide member 30 not only defines the annular air outlet gap 25 with the inner wall of the air duct 20 to achieve the effect of increasing the air speed, but also can guide the air flow to the annular air outlet gap 25, or force the air flow to flow towards the annular air outlet gap 25 to impact the inner wall of the air duct 20, so that the air flow is forced to be subjected to polymerization and guide of the tapered inner wall, and a final polymerization air outlet effect is formed. The embodiment of the invention realizes a very good polymerization air supply effect only by improving the shape of the air duct 20 and additionally arranging the flow guide member 30, has very simple structure and lower cost, is easy to realize mass production and popularization, and has very ingenious conception.
In some embodiments, as shown in fig. 1 to 5, the air inlet portion 13 includes a plurality of air inlet holes 131 opened at both lateral sides of the casing 10 to make the appearance of the casing 10 more beautiful. Further, the air inlet portion 13 may further include an air inlet grill 132 at the rear side of the housing 10, so that the air inlet amount of the entire housing 10 is larger.
Fig. 8 is an exploded schematic view of a vertical air conditioner indoor unit according to another embodiment of the present invention; fig. 9 is an exploded schematic view of a vertical air conditioning indoor unit according to still another embodiment of the present invention.
In some embodiments, as shown in fig. 3 and 4, the fan 50 may be an axial flow fan with an axis extending in a vertical direction, and the wind outlet direction is toward the air inlet 21, i.e., upward.
In other embodiments, the fan 50 may be a centrifugal fan with its axis (y-axis) extending horizontally in the transverse direction of the housing 10, and the outlet 51 of its volute is connected to the air inlet 23 to blow its exhaust air completely into the air duct 20. As shown in fig. 8, the centrifugal fan is a single suction centrifugal fan, and air is introduced into one side of the centrifugal fan in the axial direction. Preferably, as shown in fig. 9, the centrifugal fan is a double suction centrifugal fan to suck air from both axial sides, and both axial sides of the centrifugal fan are respectively connected to the air inlet holes 131 on both sides of the casing 10, so that the air suction efficiency is higher and the air suction amount is larger.
Since the indoor unit of the floor type air conditioner is generally disposed to the rear side of the wall or even near the corner of the wall, it is required to have a stronger forward blowing capability. Therefore, in some embodiments, as shown in fig. 1 to 3, the first air blowing opening 11 may be opened at the front side of the casing 10, and correspondingly, the first air outlet 21 is opened at the front side of the air duct 20. The number of the second air blowing ports 12 is two and the second air blowing ports are opened at both lateral sides of the casing 10, and the number of the second air outlets 22 is two and the second air outlets are opened at both lateral sides of the air duct 20. Therefore, the first air supply outlet 11 can be used for supplying air forwards for a long distance, and the two second air supply outlets 12 are used for supplying air for a short distance in the transverse direction, so that the air supply coverage of the whole vertical air conditioner indoor unit is enlarged. Further, the first air blowing opening 11 may be opened at an upper portion of the front side of the casing 10 and located higher than the two second air blowing openings 12, that is, the lowest point of the first air blowing opening 11 may be located higher than the highest point of the second air blowing opening 12. Therefore, air sent out by the three air supply outlets is staggered in the vertical direction and the left-right direction, an effect of surrounding air supply is formed, air flow of the supplied air is more dispersed, and the refrigerating/heating speed and the comfort level of the air flow of the indoor unit of the vertical air conditioner are improved.
As shown in fig. 1 to 3, the first air supply outlet 11, the first air outlet 21 and the air guide member 20 may be all of an oblong shape vertically arranged in the length direction as a whole, and the oblong shape refers to a shape formed by connecting two parallel spaced straight sides and two symmetrically arranged circular arcs (generally, semi-circles).
In the present embodiment, the first air blowing port 11 is formed in an oblong shape, and the following three points are considered. On one hand, compared with a circular air supply outlet which is used conventionally, the overall shape of the oblong air supply outlet with the same air outlet area is more 'flat', and airflow aggregation is facilitated. On the other hand, because the oblong air supply outlet is vertically arranged in the length direction, compared with a round air supply outlet with the same air outlet area, the height (the distance from the highest point to the lowest point of the air supply outlet) of the oblong air supply outlet is higher, and the length of the blown air flow in the vertical direction is longer. The air flow with longer length is blown forward or blown upwards, and then the covered length (the size of the air flow landing area along the front-back direction) is longer after falling on the ground in front of the air conditioner due to gravity, and the space of the air flow coverage area is larger. For example, in one specific model, the air flow covers 2m after landing when the height of the air blowing opening is 20cm, and the air flow covers 3m after landing when the height of the air blowing opening is 25 cm. In a third aspect, compared with a traditional circular air supply outlet, the shape of the oblong air supply outlet is more matched with that of the shell 10 (the shell 10 is a long strip with the length direction vertically arranged), so that the oblong air supply outlet is more harmonious and attractive.
As shown in fig. 1 to 3, each second air supply outlet 12 may be a strip shape with a vertical length direction, so as to facilitate air supply to an oblique lower side, achieve heating and downward blowing, accelerate heating speed, and improve heating comfort. An air guide mechanism may be installed at each second air blowing opening 12, for example, as shown in fig. 1, an air guide plate 60 which can rotate around a vertically extending axis is provided at each second air blowing opening 12 so as to guide the air blowing direction in a rotating manner, and also can be used for opening and closing the second air blowing opening 12.
In some embodiments, as shown in fig. 4 and 5, the air duct 20 may be configured to make the upward angle of the airflow at the bottom section of the annular air outlet gap 25 greater than the downward angle of the airflow at the top section thereof, so that the airflow at the bottom section of the annular air outlet gap 25 drives the airflow at the remaining sections to flow upward and forward together. For the embodiment that the first air supply outlet 11, the first air outlet 21 and the flow guide member 30 are all oblong circles vertically arranged in the length direction as a whole, the bottom edge of the first air outlet 21 refers to the circular arc edge at the bottom of the first air outlet 21, the top edge refers to the circular arc edge at the top thereof, and the edges at two lateral sides refer to the straight edges at two lateral sides thereof. The bottom section, the top section and the two transverse side sections of the annular air outlet gap respectively correspond to the bottom arc edge, the top arc edge and the two transverse side straight edges of the first air outlet 21. The upward-blowing angle refers to an included angle between the airflow direction (shown by a hollow arrow in fig. 5) of the bottom section of the annular air-out gap 25 and the horizontal plane, and the downward-tilting angle refers to an included angle between the airflow direction of the top section of the annular air-out gap 25 and the horizontal plane (if the airflow is blown out horizontally, the downward-tilting angle is 0 °). Because the rising angle of the air flow rising part is larger than the declining angle of the sinking part, the air flow mixed by a plurality of air flows can rise and flow integrally. In the refrigeration mode, the rising and flowing cold air can fully avoid the human body and scatter downwards after reaching the highest point, so that the shower type refrigeration experience is realized. Moreover, the air flow is blown upwards to be beneficial to improving the air supply distance.
For example, as shown in fig. 4 and 5, the inner walls of the air duct 20 adjacent to the top edge and the two lateral side edges of the first air outlet 21 are inclined from back to front gradually toward the horizontal central axis (x axis) of the first air outlet 21, and the inner wall adjacent to the bottom edge of the first air outlet 21 extends in the vertical direction, so that the rising angle of the air flow at the bottom of the annular air outlet gap 25 is maximized to 90 °, and the gap space at the bottom section of the annular air outlet gap 25 is larger. Also, the air inlet 23 may be positioned lower than the first air outlet 21 so that the air flow flows toward the guide member 30 from the bottom to the top. In this way, the bottom section of the annular air outlet gap 25 is located upstream of the air duct 20 than other sections, so that the air flow can flow into the bottom section of the annular air outlet gap 25 more smoothly.
Based on the above two designs, the bottom section of the annular air-out gap 25 has larger air volume and stronger wind power than the rest sections. The bottom powerful airflow has advantages in the processes of impact and polymerization with the airflow on the upper part of the annular air outlet gap 25 and the airflow on the two transverse sides, and the airflow is more powerfully driven to integrally lift and flow upwards and upwards together, so that a better lifting and air supply effect is realized.
In some embodiments, as shown in FIG. 3, the duct 20 may be provided with a constriction 27 having a smaller flow cross-sectional area than the remaining sections. The neck section 27 is located on the upstream side of the baffle 30, for example, at a position adjacent to the first air outlet 21. The constriction 27 accelerates the air flow before it reaches the flow guide 30, so that the air flow impacts the flow guide 30 at a faster speed, and is thus more strongly guided by the flow guide 30 towards the inner wall of the air duct 20. In addition, as shown in fig. 5 and 6, a plurality of flow guiding ribs 26 extending along the airflow direction may be disposed on the inner wall of the air duct 20 to guide the airflow, and the structural strength of the air duct 20 may also be enhanced.
Fig. 6 is an exploded schematic view of the air chute 20.
In some embodiments, as shown in fig. 3-6, the wind tunnel 20 may include a front shell 201, a rear shell 202, and a drip tray 203. The rear side and the lower side of the front case 201 are opened, and the first air outlet 21 is opened on the front case 201. The front side and the lower side of the rear shell 202 are opened, and the rear shell 202 covers and buckles the rear side of the front shell 201 to form a structure with the lower side opened together. The drain pan 203 is covered and fastened to the lower sides of the front and rear cases 201 and 202 to close the open lower sides thereof. The air inlet 23 of the air duct 20 opens on the water pan 203. In the embodiment, the air duct 20 is divided into three parts, namely a front shell 201, a rear shell 202 and a water pan 203, so that the parts can be independently processed and manufactured conveniently, and the performance requirement can be better met.
As described above, in some embodiments, the indoor unit of the floor air conditioner may have the heat exchanger 40. In some embodiments, as shown in FIG. 3, the heat exchanger 40 may be disposed inside the wind tunnel 20 and mounted on the drip tray 203. The heat exchanger 40 may be a two-stage structure, in which two heat exchange sections are flat and connected at top ends thereof, and bottom ends of the two heat exchange sections are disposed on the water pan 203 and located at two sides of the air inlet 23 respectively. The inverted v-shaped structure of the heat exchanger 40 can make the heat exchange area large enough, and make the contact with the air flow flowing upwards from the air inlet 23 more sufficient, and the heat exchange efficiency is higher. The water pan 203 is used for carrying the heat exchanger 40 on one hand and receiving condensed water dropping from the surface of the heat exchanger 40 during air conditioning and refrigeration on the other hand.
In some embodiments, as shown in fig. 5, the outer surface of the baffle 30 includes an outer end surface 31, an outer peripheral surface 32, a wind-guiding surface 33, and an inner end surface 34. Wherein the outer end face 31 faces the first air outlet 21. The outer peripheral surface 32 extends from an edge of the outer end surface 31 in a direction away from the first air outlet 21. The annular air outlet gap 25 is mainly defined by the outer peripheral surface 32 and the inner wall of the air duct 20. The air guide surface 33 extends obliquely from the edge of the outer peripheral surface 32 in a direction away from the first air outlet 21 and toward the central axis (x-axis) of the first air outlet 21. That is, the air guide surface 33 extends gradually closer to the outer peripheral surface 32 in a direction toward the first air outlet 21. The air guide surface 33 is mainly used for guiding the air flow, so that the air flow flows to the inner wall of the air duct 20 more stably and smoothly, and the resistance loss in the air guide process is reduced. The edge of the inner end surface 34 is connected with the edge of the air guide surface 33. The outer end surface 31, the outer circumferential surface 32, the air guiding surface 33 and the inner end surface 34 may together form the entire outer surface of the air guide 30.
As shown in fig. 4 and 6, at least one mounting rod 24 may extend from an inner wall of the air duct 20 opposite to the inner end surface 34 of the air deflector 30, and the air deflector 30 is fastened to the at least one mounting rod 24 through the inner end surface 34. For example, two mounting rods 24 may be extended such that the ends of the mounting rods 24 are threadably secured to the inner end surface 34 of the baffle member 30. Because the mounting rod 24 is thin, the resistance of the air flow is smaller, and the air flow can more smoothly reach each position of the annular air outlet gap 25.
Fig. 7 is an exploded view of the baffle 30.
In some embodiments, as shown in FIG. 7, the baffle 30 may be hollow to provide a lighter weight, to facilitate a more secure mounting to the duct 20, and to facilitate the shaping of its complex external surface shape. Specifically, the air guide member 30 may include a first air guide shell 301 and a second air guide shell 302 which are connected in a snap-fit manner, an outer surface of the first air guide shell 301 forms the outer end surface 31 and the outer peripheral surface 32, and an outer surface of the second air guide shell 302 forms the outer peripheral surface 32, the air guide surface 33 and the inner end surface 34. The edge of the first pod 301 may be provided with a plurality of mounting lugs 3011, the edge of the second pod 302 may be provided with a plurality of mounting lugs 3021, and after the two pods are fastened in place, each mounting lug 3011 and each mounting lug 3021 are aligned one by one, and then fastened by screws.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An indoor unit of a floor type air conditioner, comprising:
the lower part of the shell is provided with an air inlet part, and the middle upper part of the shell is provided with a first air supply outlet and a second air supply outlet;
the air duct is arranged in the shell, is provided with a downward air inlet, a first air outlet facing the first air supply outlet and a second air outlet facing the second air supply outlet and is used for guiding the air flow in the shell to the first air supply outlet and the second air supply outlet, and the inner wall of the air duct close to the first air outlet is in a tapered shape with a gradually-reduced overflowing section along the air flow direction;
the heat exchanger is arranged in the air duct and is used for exchanging heat with air flow flowing through the air duct;
the fan is arranged below the air inlet and used for promoting the airflow entering the shell from the air inlet part to enter the air channel through the air inlet; and
the flow guide piece is arranged in the air duct and limits an annular air outlet gap with the gradually reduced part of the air duct, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the center direction of the airflow under the guidance of the inner wall of the air duct and sequentially flows out of the first air outlet and the first air supply outlet.
2. The indoor unit of a floor type air conditioner according to claim 1, wherein the indoor unit of a floor type air conditioner includes
The fan is a centrifugal fan with an axis extending horizontally along the transverse direction of the shell, and an outlet of the volute is connected with the air inlet; or
The fan is an axial flow fan with an axis extending along the vertical direction, and the air outlet direction faces the air inlet.
3. The indoor unit of a floor type air conditioner according to claim 2, wherein the indoor unit of a floor type air conditioner includes
The centrifugal fan is a double suction centrifugal fan so as to suck air from both sides in the axial direction.
4. The indoor unit of a floor type air conditioner according to claim 1, wherein the indoor unit of a floor type air conditioner includes
The air inlet portion is including seting up in a plurality of fresh air inlet of the horizontal both sides of casing.
5. The indoor unit of a floor air conditioner according to claim 4, wherein the indoor unit of a floor air conditioner includes
The air inlet portion further comprises an air inlet grille located on the rear side of the shell.
6. The indoor unit of a floor type air conditioner according to claim 1, wherein the indoor unit of a floor type air conditioner includes
The first air supply outlet is formed in the front side of the shell, and the first air outlet is formed in the front side of the air duct;
the number of the second air supply outlets is two, and the second air supply outlets are respectively arranged at two transverse sides of the shell, and the number of the second air outlets is two, and the second air outlets are respectively arranged at two transverse sides of the air duct;
the first air supply outlet is higher than the two second air supply outlets.
7. The indoor unit of a floor type air conditioner according to claim 6, wherein the indoor unit of a floor type air conditioner includes
The first air supply outlet, the first air outlet and the flow guide piece are all oblong circles which are vertically arranged in the length direction on the whole; and is
Each second air supply outlet is a long strip vertically arranged in the length direction.
8. The indoor unit of a floor type air conditioner according to claim 6, wherein the indoor unit of a floor type air conditioner includes
The air duct is configured to make the rising angle of the airflow at the bottom section of the annular air outlet gap larger than the declining angle of the airflow at the top section of the annular air outlet gap, so that the airflow at the bottom section of the annular air outlet gap drives the airflow at the other sections to flow upwards and forwards together.
9. The indoor unit of a floor type air conditioner according to claim 8, wherein the indoor unit of a floor type air conditioner includes
The inner walls of the air duct, which are close to the top edge and the two lateral side edges of the first air outlet, gradually incline towards the horizontal central axis of the first air outlet from back to front, and the inner walls, which are close to the bottom edge of the first air outlet, extend along the vertical direction; and is
The position of the air inlet is lower than that of the first air outlet, so that the air flow flows to the flow guide piece from bottom to top.
10. The indoor unit of a floor air conditioner according to claim 1, wherein the outer surface of the guide member includes:
an outer end face facing the first air outlet;
the outer peripheral surface extends out from the edge of the outer end surface along the direction far away from the first air outlet;
the air guide surface extends obliquely from the edge of the outer peripheral surface along the direction far away from the first air outlet and towards the central axis direction of the first air outlet; and
and the edge of the inner end surface is connected with the edge of the air guide surface.
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| CN202010688082.9A CN111912023B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN202010688082.9A CN111912023B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN111912023B CN111912023B (en) | 2022-01-21 |
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| CN111912023B (en) | 2022-01-21 |
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