CN111912014B - Vertical air conditioner indoor unit - Google Patents
Vertical air conditioner indoor unit Download PDFInfo
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- CN111912014B CN111912014B CN202010687021.0A CN202010687021A CN111912014B CN 111912014 B CN111912014 B CN 111912014B CN 202010687021 A CN202010687021 A CN 202010687021A CN 111912014 B CN111912014 B CN 111912014B
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- air
- air outlet
- flow guide
- guide piece
- flow
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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
- 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
Abstract
The invention provides a vertical air conditioner indoor unit, which comprises: the air guide piece is arranged in the air channel and is close to the first air outlet; wherein, the flow guide piece and the air duct define an air outlet gap; the flow guide piece is of a hollow structure, a plurality of air outlet holes are formed in the front surface of the flow guide piece at intervals, at least one air inlet hole is formed in the rear surface of the flow guide piece, so that a first part of air flow in the shell flows through the air outlet gap to reach the first air outlet, and a second part of air flow enters the flow guide piece from the air inlet hole, flows out of the flow guide piece from the air outlet holes and reaches the first air outlet. The vertical air conditioner indoor unit of the invention ensures that the airflow blown out from the first air outlet to the first air supply outlet is formed by mixing two parts of airflow, thus leading the air outlet to be more comfortable.
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 larger number of pieces and stronger refrigerating and heating capacity, and is usually placed in indoor spaces with larger areas, such as a living room. The existing vertical air conditioner indoor unit generally blows air which is subjected to heat exchange through a heat exchanger out of a shell directly, and is easy to cause overcooling or overheating. 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 object of the present invention is to provide a vertical air conditioning indoor unit that overcomes or at least partially solves the above mentioned problems, so as to make the outlet air more suitable.
The invention further aims to improve the long-distance air supply capacity and the strong air outlet capacity of the vertical air conditioner indoor unit.
In particular, the present invention provides a vertical air conditioner indoor unit comprising:
a housing having a first supply air outlet;
the air duct is arranged in the shell, is provided with an air inlet and a first air outlet facing the first air supply outlet, and is used for guiding the airflow in the shell to the first air supply outlet; and
the flow guide piece is arranged in the air duct and is close to the first air outlet; wherein, the flow guide piece and the air duct define an air outlet gap; the flow guide piece is of a hollow structure, a plurality of air outlet holes are formed in the front surface of the flow guide piece at intervals, at least one air inlet hole is formed in the rear surface of the flow guide piece, so that a first part of air flow in the shell flows through the air outlet gap to reach the first air outlet, and a second part of air flow enters the flow guide piece from the air inlet hole, flows out of the flow guide piece from the air outlet holes and reaches the first air outlet.
Optionally, the inner wall of the air duct adjacent to the first air outlet is in a tapered shape with a gradually decreasing flow cross section along the airflow direction, and the air outlet gap is an annular air outlet gap defined by the flow guide piece and the tapered portion of the air duct; and is
The flow guide piece is configured to guide at least one part of the airflow in the shell to the annular air outlet gap and enable the airflow to gradually converge towards the airflow center direction under the guidance of the inner wall of the air duct.
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 air inlet 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.
Optionally, the duct has a constriction with a smaller cross-sectional area than the remaining sections, the constriction being located upstream of the flow guide to accelerate the flow of air before it reaches the flow guide.
Optionally, the indoor unit of an upright air conditioner further includes:
the heat exchanger is arranged in the shell;
and the first fan is arranged in the shell and used for promoting indoor air to enter the shell to exchange heat with the heat exchanger and then blow out from the first air supply outlet through the air outlet gap.
Optionally, the outer surface of the flow guide comprises:
the outer end face faces the first air outlet, and a plurality of air outlet holes are formed in the outer end face;
the outer peripheral surface extends out from the edge of the outer end surface along the direction far away from the first air outlet; and
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;
the air inlet hole is defined by the edge of the air guide surface.
Optionally, the air guide member is movably connected with the inner wall of the air duct so as to adjust the size of the air outlet gap.
Optionally, the indoor unit of an upright air conditioner further includes: and the at least one second fan is arranged in the flow guide block and used for promoting the airflow in the shell to enter the flow guide block through the air inlet and then blow out from the air outlet holes.
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;
the second fan is axial fan, and quantity is two, sets up in the inside of water conservancy diversion spare along vertical direction interval.
In the vertical air conditioner indoor unit, the guide piece is arranged close to the first air outlet, the guide piece and the air duct define an air outlet gap, so that air flow in the shell reaches the first air outlet through the air outlet gap, meanwhile, the guide piece is also of a hollow structure, the front surface is provided with a plurality of air outlet holes at intervals, the rear surface is provided with at least one air inlet hole, so that a first part of the air flow in the shell flows through the air outlet gap to reach the first air outlet, a second part of the air flow enters the guide piece from the air inlet hole, flows out of the guide piece from the air outlet holes to reach the first air outlet and is subjected to micropore air outlet, and the two parts of air flow are mixed at the first air outlet and then are blown out through the first air supply hole, so that the air outlet is more comfortable.
Furthermore, 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.
In the vertical air conditioner indoor unit, the flow guide piece and the inner wall of the air duct define the annular air outlet gap to achieve the effect of improving the air speed, and simultaneously, the air flow can be guided to the annular air outlet gap just, or at least a part of the air flow is forced to flow towards the annular air outlet gap, so that the air flow is forced to be subjected to polymerization and guide of the tapered inner wall, and the 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 plurality of air flows integrally rises and flows. 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 shape of the flow guide part specially, so that the flow guide part comprises an outer end surface, an outer peripheral surface and an air guide 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.
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 front view schematically illustrating an indoor unit of a floor type air conditioner according to an embodiment of the present invention.
Fig. 2 is a schematic sectional view of the indoor unit of the floor type air conditioner shown in fig. 1.
Fig. 3 is another schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 1.
Fig. 4 is an exploded view of the indoor unit of the floor type air conditioner shown in fig. 1.
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 front view schematically illustrating an indoor unit of a floor type air conditioner according to an embodiment of the present invention. Fig. 2 is a schematic sectional view of the indoor unit of the floor type air conditioner shown in fig. 1. Fig. 3 is another schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 1. Fig. 4 is an exploded view of the indoor unit of the floor type air conditioner shown in fig. 1.
The indoor unit of a floor type air conditioner according to an embodiment of the present invention may generally include a case 10, an air duct 20, and a guide 30. The casing 10 has a first air blowing port 11, and the first air blowing port 11 is used for blowing an air flow in the casing 10 into a room to condition indoor air. The air flow can be cold air produced by the indoor unit of the vertical air conditioner in a refrigeration mode and hot air produced by the indoor unit of the vertical air conditioner in a heating mode. The number of the first blowing ports 11 may be one or more. An air duct 20 is provided in the housing 10, and has an air inlet 23 and a first air outlet 21 facing the first air blowing port 11, for guiding the air flow in the housing 10 to the first air blowing port 11. The flow guide member 30 is disposed in the air duct 20, is close to the first air outlet 21, and defines an air outlet gap 25 with the air duct 20; the air guiding member 30 is of a hollow structure, a plurality of air outlets 34 are spaced on the front surface, and at least one air inlet 35 is disposed on the rear surface, so that a first portion of the air flow in the housing 10 flows through the air outlet gap 25 to reach the first air outlet 21, and a second portion of the air flow enters the air guiding member 30 from the air inlet 35, flows out of the air guiding member 30 from the air outlets 34 to reach the first air outlet 21. In the indoor unit of the vertical air conditioner, the flow guide member 30 is arranged near the first air outlet 21, the flow guide member 30 and the air duct 20 define an air outlet gap 25, so that the air flow in the casing 10 reaches the first air outlet 21 through the air outlet gap 25, meanwhile, the flow guide member 30 is also of a hollow structure, the front surface is provided with a plurality of air outlet holes 34 at intervals, the rear surface is provided with at least one air inlet hole 35, so that a first part of the air flow in the casing 10 flows through the air outlet gap 25 to reach the first air outlet 21, a second part of the air flow enters the flow guide member 30 from the air inlet hole 35, flows out of the flow guide member 30 from the air outlet hole 34 to reach the first air outlet 21 and is exhausted in a micropore mode, and the two parts of the air flow are mixed at the first air outlet 21 and then are blown out through the first air supply opening 11, and therefore the air outlet can be more comfortable. One or more air intakes 13 may be provided on the housing 10 to allow indoor air to enter the housing 10 through the air intakes 13. As shown in fig. 4, the housing 10 may be formed by combining a front cabinet 101 and a rear cabinet 102.
As shown in fig. 2 to 4, in some embodiments, the inner wall of the air duct 20 adjacent to the first air outlet 21 is tapered, the flow cross section of which gradually decreases along the airflow direction, and the air outlet gap 25 is an annular air outlet gap 25 defined by the flow guide 30 and the tapered portion of the air duct 20; and the flow guide 30 is configured to guide at least a portion of the airflow in the housing 10 to the annular air outlet gap 25 and make the airflow converge toward the airflow center gradually under the guidance of the inner wall of the air duct 20 (the airflow direction is indicated by arrows in fig. 2). 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 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.
In the indoor unit of the vertical air conditioner of the embodiment of the invention, the inner wall of the air duct 20 close to the first air outlet 21 is tapered, so that the flow cross section is gradually reduced along the airflow direction. And, the deflector 30 inside the air duct 20 and the tapered portion of the inner wall of the air duct 20 define an annular air outlet gap 25. In this way, the air flow entering the air duct 20 from the air inlet 23 of the air duct 20 flows to the first air outlet 21, and is guided by the flow guiding member 30 to blow toward the inner wall of the air duct 20, 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 towards the center of the airflow in the outward flowing process under the guidance of the gradually-reduced inner wall of the air duct 20 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.
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, so as to achieve the effect of increasing the air speed, but also just guides the air flow to the annular air outlet gap 25, or forces at least a part of the air flow to flow towards the annular air outlet gap 25, so as to force the air flow to be subjected to the polymerization and guidance of the tapered inner wall, thereby forming the final polymerization air outlet effect. The invention realizes a very good polymerization air supply effect only by improving the air duct 20 and additionally arranging the flow guide piece 30, has very simple structure and lower cost, is easy to realize mass production and popularization, and has very ingenious conception.
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 of the present invention, as shown in fig. 1 and 2, the first air blowing opening 11 is opened at the front side of the casing 10, and the first air outlet 21 is opened at the front side of the air duct 20, so that the first air blowing opening 11 can blow air at a long distance forward.
In addition, other air supply ports can be arranged on the shell 10 to be matched with the first air supply port 11 for use, so that various air supply modes can be realized. For example, as shown in fig. 4, the air duct 20 has two second air outlets 22. The casing 10 has two second supply ports 12 to match with the two second air outlets 22, respectively. Two second blowing ports 12 are opened at both lateral sides of the casing 10, respectively. For example, the first air blowing port 11 may be located at the upper portion of the casing 10, and the two second air blowing ports 12 may be located at the middle portion or the lower portion of the casing 10, so that the air blown by each air blowing port is staggered in the vertical direction and the left-right direction, thereby forming an air blowing effect, further dispersing the air flow, and improving the cooling/heating speed and the air flow comfort of the indoor unit of the floor air conditioner. An air guide mechanism may be installed at each second air blowing opening 12, for example, as shown in fig. 4, and an air guide plate 60 having an axis extending in a vertical direction may be installed at each second air blowing opening 12 so as to rotatably guide the air blowing direction.
In some embodiments, as shown in fig. 2, the air duct 20 is configured such that the rising angle of the airflow at the bottom section 252 of the annular air outlet gap 25 is greater than the falling angle of the airflow at the top section 251 thereof, so that the airflow at the bottom section 252 of the annular air outlet gap 25 drives the airflow at the rest sections to flow upward and forward together. The upward-raising angle refers to an angle between the airflow direction (as shown by the hollow arrow in fig. 2) of the bottom section 252 of the annular air outlet gap 25 and the horizontal plane, and the downward-lowering angle refers to an angle between the airflow direction of the top section 251 of the annular air outlet gap 25 and the horizontal plane (if the airflow is blown out horizontally, the downward-lowering 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 integrally rises and flows. 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. 2, 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 gradually from back to front toward the horizontal central axis of the first air outlet 21, and the inner walls adjacent to the bottom edge of the first air outlet 21 extend in the vertical direction; and the air inlet 23 is positioned lower than the first air outlet 21 so that the bottom section 252 of the annular air outlet gap 25 is located upstream of the air duct 20 compared to the other sections. The air flow uplift angle at the bottom of the annular air outlet gap 25 is the largest and is 90 degrees, so that the gap space of the bottom section 252 of the annular air outlet gap 25 is larger. Based on the above two designs, the bottom section 252 of the annular air-out gap 25 has a 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 FIGS. 3 and 4, 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, a plurality of flow guiding ribs 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.
With continued reference to fig. 4, in some embodiments, 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.
The indoor stand air conditioner may have a heat exchanger 40 and a first fan 501. 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. As mentioned above, the air duct 20 may be located at the middle upper portion of the housing 10, and one or more air inlets 13 may be opened at the lower portion of the housing 10, for example, as shown in fig. 4, the air inlets 13 are opened at the rear side and the lateral sides of the housing 10. The first fan 501 may be installed below the air duct 20 and face the air inlet 23 so as to blow the air flow entering the lower space of the housing 10 from the air inlet 13 toward the inside of the air duct 20. The first fan 501 may be a double suction centrifugal fan as shown in fig. 3 and 4, or may be another type of fan. When the first fan 501 is a double-suction centrifugal fan, a motor, a volute 510, an auxiliary air duct 511 connected to the volute 510 and the air duct 20, and the like are also provided.
In some embodiments, as shown in fig. 4, the outer surface of the flow guide 30 includes an outer end surface 31, an outer peripheral surface 32, and a wind guide surface 33. The outer end face 31 faces the first air outlet 21, and the outer end face 31 is provided with a plurality of air outlet holes 34. 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. And the air guide surface 33 is configured such that the edges define the air inlet holes 35, that is, there is one and only one air inlet hole 35 on the rear surface of the air guide 30. In some embodiments, the air guiding member 30 may include a first air guiding shell 301 and a second air guiding shell 302 that are connected in a snap-fit manner, an outer surface of the first air guiding shell 301 forms the outer end surface 31 and the outer peripheral surface 32, and an outer surface of the second air guiding shell 302 forms the air guiding surface 33. The edge of the first guide shell 301 may be provided with a plurality of mounting lugs, the edge of the second guide shell 302 may be correspondingly provided with a plurality of mounting lugs, and after the two guide shells are fastened in place, the mounting lugs are aligned one by one, and then are fastened by screws. With continued reference to FIG. 4, at least one mounting rod 24 may extend from an inner wall of the air chute 20 opposite the baffle 30, and the baffle 30 may be connected to the air chute 20 by being connected to the at least one mounting rod 24. In some embodiments, the air guide 30 is movably connected to the inner wall of the air duct 20 so as to adjust the size of the air outlet gap 25. The control of the air outlet speed and the air quantity can be realized by adjusting the size of the air outlet gap 25, and the use comfort is further improved. In addition, the indoor unit of the vertical air conditioner may further be provided with a front trim (not shown in the drawings), having a structure matching the shape of the outer end surface 31 of the air guide 30, and configured to movably shield the outer end surface 31 of the air guide 30, so as to shield the outer end surface 31 of the air guide 30 when air is discharged without uniform air, i.e., without the air outlet holes 34, and at this time, the indoor unit of the vertical air conditioner discharges air only from the annular air outlet gap 25. The vertical air-conditioning indoor unit of the embodiment of the invention specially designs the shape of the flow guide member 30, so that the flow guide member 30 comprises an outer end surface 31, an outer peripheral surface 32 and an air guide surface 33. The outer peripheral surface 32 and the inner wall of the air duct 20 define an annular air outlet gap 25, and the obliquely extending air guide surface 33 is 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 is reduced.
Referring now to fig. 3, the indoor unit of a floor type air conditioner further includes: and a second fan 502 disposed inside the baffle 30 for promoting the air flow inside the housing 10 to enter the baffle through the air inlet holes 35 and then to be blown out from the plurality of air outlet holes 34. The second fan 502 may be an axial fan as shown in fig. 2 and 3, or may be another type of fan. Preferably, two axial fans are disposed in the flow guide 30 at intervals along the longitudinal direction, and a motor 521, a motor gland 522, a rectifying grid 520, and the like are disposed correspondingly. The second fan 502 is rectified by the rectifying grille 520, so that air can be better discharged from the air outlet 34 of the flow guide 30.
In some embodiments, as shown in fig. 1 and 2, the first air supply outlet 11, the first air outlet 21 and the flow guide member 30 are all oblong with a length direction vertically arranged as a whole. An oblong refers to a shape formed by two parallel spaced straight sides joined by two symmetrically disposed arcs (usually semicircles). 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 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 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, when the height of the air blowing opening is 20cm, the coverage length of the air flow after falling to the ground is 2m, and when the height of the air blowing opening is 25cm, the coverage length of the air flow after falling to the ground can reach 3 m. 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 vertically arranged in the length direction), so that the oblong air supply outlet is more harmonious and attractive.
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 (7)
1. An indoor unit of a floor type air conditioner, comprising:
a housing having a first supply air outlet;
the air duct is arranged in the shell, is provided with an air inlet and a first air outlet facing the first air supply outlet, and is used for guiding the airflow in the shell to the first air supply outlet; and
the flow guide piece is arranged in the air duct and is close to the first air outlet; wherein, the flow guide piece and the air duct define an air outlet gap; the flow guide piece is of a hollow structure, a plurality of air outlet holes are formed in the front surface of the flow guide piece at intervals, at least one air inlet hole is formed in the rear surface of the flow guide piece, so that a first part of air flow in the shell flows through the air outlet gap to reach the first air outlet, and a second part of air flow enters the flow guide piece from the air inlet hole and flows out of the flow guide piece from the air outlet holes to reach the first air outlet; wherein
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 airflow direction, and the air outlet gap is an annular air outlet gap defined by the flow guide piece and the tapered part of the air duct; and is
The flow guide piece is configured to guide at least one part of the airflow in the shell to the annular air outlet gap and enable the airflow to gradually converge towards the airflow center direction under the guidance of the inner wall of the air duct;
the air duct is configured to enable the uplifting angle of the airflow at the bottom section of the annular air outlet gap to be larger than the downward inclination 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 airflows at the other sections to jointly flow upwards and forwards;
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 the air inlet is lower than the first air outlet, so that the bottom section of the annular air outlet gap is located at the upstream of the air duct compared with other sections.
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 air duct is provided with a necking section with smaller flow cross-sectional area than the rest sections, and the necking section is positioned on the upstream side of the flow guide piece so as to accelerate the air flow before the air flow flows to the flow guide piece.
3. The indoor unit of a floor air conditioner according to claim 1, further comprising:
a heat exchanger disposed within the housing;
and the first fan is arranged in the shell and used for promoting indoor air to enter the shell to exchange heat with the heat exchanger and then blow out from the first air supply outlet through the air outlet gap.
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 outer surface of the flow guide comprises:
the outer end face faces the first air outlet, and the plurality of air outlet holes are formed in the outer end face;
the outer peripheral surface extends out from the edge of the outer end surface along the direction far away from the first air outlet; and
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;
the air inlet hole is defined by the edge of the air guide surface.
5. The indoor unit of a floor air conditioner according to claim 1,
the flow guide piece is movably connected with the inner wall of the air duct so as to adjust the size of the air outlet gap.
6. The indoor unit of a floor air conditioner according to claim 1, further comprising:
and the second fan is arranged in the flow guide piece and used for promoting the airflow in the shell to enter the flow guide block through the air inlet and then blow out from the air outlet holes.
7. The indoor unit of a floor air conditioner according to claim 6, wherein,
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;
the second fans are axial fans, the number of the second fans is two, and the second fans are arranged inside the flow guide piece at intervals in the vertical direction.
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| CN202010687021.0A CN111912014B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN202010687021.0A CN111912014B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN110360665A (en) * | 2019-08-15 | 2019-10-22 | 珠海格力电器股份有限公司 | Window-mounted air conditioner |
| CN210373769U (en) * | 2019-07-29 | 2020-04-21 | 广东美的制冷设备有限公司 | Vortex ring generating device, air conditioner indoor unit and air conditioner |
| CN210601907U (en) * | 2019-07-29 | 2020-05-22 | 广东美的制冷设备有限公司 | Air conditioner |
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| CN106440061A (en) * | 2016-11-29 | 2017-02-22 | 芜湖美智空调设备有限公司 | Wind hole air conditioner capable of guiding wind up and down |
| CN210373769U (en) * | 2019-07-29 | 2020-04-21 | 广东美的制冷设备有限公司 | Vortex ring generating device, air conditioner indoor unit and air conditioner |
| CN210601907U (en) * | 2019-07-29 | 2020-05-22 | 广东美的制冷设备有限公司 | Air conditioner |
| CN110360665A (en) * | 2019-08-15 | 2019-10-22 | 珠海格力电器股份有限公司 | Window-mounted air conditioner |
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