CN111912018B - Vertical air conditioner indoor unit - Google Patents
Vertical air conditioner indoor unit Download PDFInfo
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- CN111912018B CN111912018B CN202010687190.4A CN202010687190A CN111912018B CN 111912018 B CN111912018 B CN 111912018B CN 202010687190 A CN202010687190 A CN 202010687190A CN 111912018 B CN111912018 B CN 111912018B
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- 230000007246 mechanism Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 18
- 238000007664 blowing Methods 0.000 description 13
- 238000004378 air conditioning Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 230000009286 beneficial effect 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
- 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
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention provides a vertical air conditioner indoor unit, which comprises a shell and a first air duct, wherein the inner wall of the first air duct, which is close to a first air outlet, is in a tapered shape of which the overflowing section gradually reduces along the airflow direction; the second air channel is arranged in the shell, is positioned above the first air channel and is provided with an air inlet and an air outlet, the air outlet faces the second air supply outlet, the air inlet of the second air channel is communicated with the second air outlet, and the second air channel is used for guiding the airflow in the first air channel to the second air supply outlet; and the flow guide piece is arranged in the first air channel, defines an annular air outlet gap with the tapered part of the first air channel and is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the airflow center direction under the guidance of the inner wall of the first air channel and flows out of the first air outlet and the first air supply outlet in sequence. The vertical air conditioner indoor unit has stronger wind power and longer air supply distance.
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 object of the present invention is to provide a vertical air conditioner indoor unit that overcomes or at least partially solves the above-mentioned problems, so as to achieve better long-distance air supply and strong air supply effects.
The invention further aims to diversify the air outlet modes of the vertical air conditioner indoor unit and improve the use experience of users.
In particular, the present invention provides a vertical air conditioner indoor unit comprising:
a housing having a first air supply outlet and a second air supply outlet;
the first air duct is arranged in the shell and is provided with an air inlet, a first air outlet and a second air outlet, the first air outlet faces the first air supply outlet, and the inner wall of the first air duct, which is close to the first air outlet, is in a gradually-reduced shape of which the overflowing section gradually reduces along the airflow direction;
the second air duct is arranged in the shell and provided with an air inlet and an air outlet, the air outlet faces the second air supply outlet, and the air inlet of the second air duct is configured to be controllably communicated with the second air outlet so as to receive the air flow from the first air duct; and
and the flow guide piece is arranged in the first air channel, defines an annular air outlet gap with the gradually reduced part of the flow guide piece, and is used for guiding the air flow to the annular air outlet gap so that the air flow is gradually converged towards the air flow center direction under the guidance of the inner wall of the first air channel and sequentially flows out of the first air outlet and the first air supply outlet.
Optionally, the diversion part is formed by a diversion line rotating around a horizontal central axis for a circle, the diversion line comprises a first arc-shaped section, a second arc-shaped section, a third arc-shaped section, a fourth arc-shaped section and a fifth arc-shaped section which are smoothly connected in sequence and are convex outwards, the first arc-shaped section, the second arc-shaped section and the third arc-shaped section are gradually far away from the horizontal central axis from the back to the front, and the terminal point of the fifth arc-shaped section and the starting point of the first arc-shaped section are on the horizontal central axis.
Optionally, the ratio of the radii of the first arcuate segment and the third arcuate segment is between 0.4 and 0.6;
the ratio of the radii of the second arc-shaped section to the third arc-shaped section is between 2.2 and 2.7;
the ratio of the radius of the fourth arc-shaped section to the radius of the third arc-shaped section is between 0.2 and 0.4;
the ratio of the radii of the fifth arc segment and the third arc segment is between 1.8 and 3.0.
Optionally, the width of the widest part of the flow guide piece is greater than or equal to the width of the first air outlet; and/or
The streamline shape of the inner wall of the tapered part of the first air duct is the same as the linear shape of the guide line of the opposite part of the guide piece; and/or
The position of the air inlet of the first air duct is lower than the first air outlet, so that the air flow flows to the flow guide piece from bottom to top, and the air flow of the bottom section of the annular air outlet gap drives the air flow of the other sections to flow upwards together towards the front and the top.
Optionally, the indoor unit of an upright air conditioner further includes: and the baffle is movably arranged at the joint of the first air duct and the second air duct and is used for opening and closing the second air outlet and/or the air inlet of the second air duct so as to realize the communication or non-communication of the air inlet and the second air outlet of the second air duct.
Optionally, the indoor unit of an upright air conditioner further includes: the driving mechanism is used for driving the baffle to move back and forth so as to open and close the second air outlet or the air inlet of the second air duct; the driving mechanism comprises a rack, a gear and a motor, wherein the rack extends in the front-back direction and is fixed with the baffle; the gear is meshed with the rack; the motor is installed between first wind channel and second wind channel for drive gear rotates so that the rack removes and then drives the baffle and remove along the fore-and-aft direction.
Optionally, the first air duct includes a first section and a second section extending forward from the front of the upper end of the first section of the first air duct, wherein the lower side of the first section of the first air duct is open to define an air inlet of the first air duct, the rear of the upper end is open to define a second air outlet, and the front side of the second section of the first air duct is provided with a first air outlet;
the second air duct is positioned above the first air duct and comprises a first section and a second section extending forwards from the upper end of the first section of the second air duct, wherein the first section of the second air duct is positioned above the first section of the first air duct, the lower side of the first section of the second air duct is open to limit an air inlet of the second air duct, and an air outlet is formed in the front side of the second section of the second air duct;
the baffle is provided with a top wall section extending forwards and backwards, and the air inlet and the second air outlet of the second air duct are communicated or not communicated through moving forwards and backwards.
Optionally, the second section of the first wind tunnel has a circular longitudinal cross-section;
the top wall section has an upwardly curved arch;
the front lower part of the first section of the second air duct is correspondingly provided with an arc-shaped notch, and the top wall section moves out or moves into the second air duct through the arc-shaped notch to open and close the air inlet of the second air duct.
Optionally, the indoor unit of an upright air conditioner further includes:
the heat exchanger is arranged in the shell; and
and the 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 and the second air supply outlet through the air duct.
Optionally, the first air supply outlet is a circular outlet arranged at the upper part of the front side of the shell;
the first air outlet is a circular opening formed in the upper part of the front side of the first air duct;
the second air supply outlet is a transverse strip-shaped outlet positioned above the first air supply outlet;
the air outlet is a transverse strip-shaped opening arranged on the front side of the second air duct.
In the vertical air conditioner indoor unit, the inner wall of the first air duct close to the first air outlet is gradually reduced, so that the overflowing section is gradually reduced along the airflow direction. And an annular air outlet gap is defined between the flow guide piece inside the first air duct and the tapered part of the inner wall of the first air duct. Therefore, in the process that the air flow (heat exchange air flow, fresh air flow and the like) entering the first air channel from the air inlet of the first 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 first 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 first 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 first air duct define the annular air outlet gap to achieve the effect of improving 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 the final polymerization air outlet effect is formed. The invention realizes a very good polymerization air supply effect only by improving the shape of the first 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.
Meanwhile, in the vertical air-conditioning indoor unit, the first air duct and the second air duct are arranged, the first air supply outlet and the second air supply outlet are arranged on the shell, the first air supply outlet is a polymerization air supply outlet, the second air supply outlet is a common air supply outlet, and meanwhile, the air inlet of the second air duct is controllably communicated with the second air outlet to receive air flow from the first air duct, so that the vertical air-conditioning indoor unit can have multiple air outlet modes, and the use experience of a user is improved.
Furthermore, the shape of the flow guide part is specially designed, so that the flow guide part is formed by rotating a flow guide line which comprises a convex first arc-shaped section, a concave second arc-shaped section, a convex third arc-shaped section, a convex fourth arc-shaped section and a convex fifth arc-shaped section which are smoothly connected in sequence around a horizontal central axis for a circle, the flow resistance in the air flow flowing process is smaller, the energy loss and the noise are smaller, the convergence effect is more obvious, and the polymerization air supply effect of the first air outlet is improved.
Furthermore, the shape of the first air duct is specially designed, so that the streamline shape of the inner wall of the tapered part of the first air duct is the same as the streamline shape of the guide line of the opposite part of the guide piece, the air outlet resistance can be further reduced, the air outlet strength is improved, and meanwhile, the air inlet of the first air duct is lower than the first air outlet, so that the air flow flows to the guide piece from bottom to top, and the air flow of the bottom section of the annular air outlet gap drives the air flow of the rest sections to flow upwards and forwards together. 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 shower type refrigeration experience is realized, and the use comfort of a user is improved. Moreover, the air flow is blown upwards to be beneficial to improving the air supply distance.
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 a floor type air conditioning indoor unit 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, when the second air outlet is closed.
Fig. 3 is a partially sectional view schematically illustrating the second air outlet of the indoor unit of the floor type air conditioner of fig. 1 opened.
Fig. 4 is a schematic cross-sectional view of a first duct and a baffle of the indoor unit of the floor air conditioner shown in fig. 1.
Fig. 5 is a schematic sectional view of a guide of the indoor unit of the floor air conditioner of fig. 1.
Fig. 6 is a partial schematic view of a vertical air conditioning indoor unit provided with a guide vane.
Fig. 7 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. For example, 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.
Fig. 1 is a schematic structural view of a floor type air conditioning indoor unit according to an embodiment of the present invention. Fig. 2 is a schematic sectional view of the indoor stand air conditioner of fig. 1 with the second air outlet 23 closed. Fig. 3 is a partially sectional view schematically showing the upright air conditioning indoor unit shown in fig. 1 with the second air outlet 23 opened. Fig. 4 is a schematic cross-sectional view of the first duct 20 and the air guide 30 of the indoor unit of the floor air conditioner shown in fig. 1. Fig. 5 is a schematic sectional view of the air guide 30 of the indoor unit of the stand type air conditioner shown in fig. 1. Fig. 6 is a partial schematic structural view of the indoor unit of the floor type air conditioner provided with the guide vane 40. Fig. 7 is an exploded schematic view (not shown) of the indoor unit of the floor air conditioner shown in fig. 1.
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 casing 10, a first duct 20, a second duct 70, and a baffle 30.
The casing 10 has a first air blowing port 11 and a second air blowing port 13. The first and second blowing ports 11 and 13 are used to blow an air flow inside the casing 10 toward the 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 housing 10 may further have an air inlet 12 for introducing indoor air. The housing 10 may be defined by a front cabinet 101 and a rear cabinet 102.
The first air duct 20 is disposed in the housing 10 and has an air inlet 22, a first air outlet 21, and a second air outlet 23. The first air outlet 21 faces the first air supply outlet 11, and the inner wall of the first air duct 20 near the first air outlet 21 is tapered, whose flow cross section gradually decreases along the airflow direction. In other words, the flow cross section of the first air duct 20 becomes gradually smaller in the air flow direction adjacent to the first air outlet 21.
The second air duct 70 is disposed in the housing 10 and has an air inlet 701 and an air outlet 702, the air outlet 702 facing the second air supply outlet 13, the air inlet 701 of the second air duct 70 being configured to controllably communicate with the second air outlet 23 to receive the air flow from the first air duct 20.
The guiding element 30 is disposed in the first air duct 20 and defines an annular air outlet gap 15 with the tapered portion 150 thereof, for guiding the air flow to the annular air outlet gap 15, so that the air flow is gradually converged toward the air flow center direction under the guidance of the inner wall of the first air duct 20 and flows out of the first air outlet 21 and the first air supply outlet 11 in sequence (the air flow direction is indicated by arrows in fig. 2 and 3).
In the indoor unit of the floor air conditioner of the embodiment of the present invention, the inner wall of the first air duct 20 near the first air outlet 21 is tapered, so that the flow cross section is gradually reduced along the airflow direction. Moreover, the deflector 30 inside the first air duct 20 and the tapered portion 150 of the inner wall of the first air duct 20 define an annular air outlet gap 15. In this way, the air flow (heat exchange air flow, fresh air flow, etc.) entering the first air duct 20 from the air inlet 22 of the first air duct 20 flows to the first air outlet 21, and is guided by the flow guide 30 to blow toward the inner wall of the first air duct 20, and finally flows into the annular air outlet gap 15. Because the air outlet cross section of the annular air outlet gap 15 is smaller, the air outlet speed is higher. The high-speed air flow is gradually converged towards the center of the air flow in the outward flowing process under the guidance of the tapered inner wall of the first 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 in the embodiment of the present invention, the flow guiding element 30 not only defines the annular air outlet gap 15 with the inner wall of the first air duct 20, so as to achieve the effect of increasing the air speed, but also can guide the air flow to the annular air outlet gap 15, or force the air flow to flow toward the annular air outlet gap 15, so as to force the air flow to receive the convergent guidance of the tapered inner wall, thereby forming the final convergent air outlet effect. The invention realizes a very good polymerization air supply effect only by improving the shape of the first 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.
Meanwhile, in the indoor unit of a floor air conditioner according to the embodiment of the present invention, the first air duct 20 and the second air duct 70 are provided, and the casing 10 is provided with the first air outlet 11 and the second air outlet 13, where the first air outlet 11 is a collective air outlet and the second air outlet 13 is a common air outlet. Meanwhile, the air inlet 701 of the second air duct 70 is configured to be controllably communicated with the second air outlet 23 to receive the air flow from the first air duct 20, so that the indoor unit of the floor air conditioner has multiple air outlet modes, and the indoor unit of the floor air conditioner can only supply air through the first air supply outlet 11, can also supply air through the second air supply outlet 13, and can also supply air through the first air supply outlet 11 and the second air supply outlet 13, so that a user can adjust the indoor unit as required, and the use experience of the user is improved.
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, referring to fig. 1, 2 and 7, in this embodiment, the first air blowing port 11 is a circular port opened in the upper part of the front side of the casing 10; the first air outlet 21 is a circular opening formed at the upper part of the front side of the first air duct 20; the second air supply outlet 13 is a transverse strip-shaped outlet positioned above the first air supply outlet 11; the air outlet 702 is a transverse strip-shaped opening arranged at the front side of the second air duct 70. The second air duct 70 is located above the first air duct 20. The diameter of the first air outlet 21 is smaller than that of the first air supply outlet 11; a gap is formed between the first air outlet 21 and the first air blowing opening 11, and the first air duct 20 is configured to have an annular portion 24 formed at a front end of the first air outlet 21 to shield the gap between the first air outlet 21 and the first air blowing opening 11 and guide the air. By locating the second air blowing port 13 above the first air blowing port 11 and limiting the structural shapes, distances, and the like of the first air blowing port 11, the first air outlet 21, and the second air blowing port 13, the appearance of the entire floor air conditioning indoor unit can be further improved, and the overall stability can be improved.
Referring to fig. 5, the diversion member 30 is formed by a diversion line rotating a circle around the horizontal central axis, the diversion line comprises a first arc section (ab section) which is convex and is smoothly connected in sequence, a second arc section (bc section) which is concave, a third arc section (cd section) which is convex, a fourth arc section (de section) which is convex and a fifth arc section (ef section) which is convex, the first arc section (ab section), the second arc section (bc section) and the third arc section (cd section) are gradually far away from the horizontal central axis from the back to the front, and the terminal point of the fifth arc section (ef section) and the starting point of the first arc section (ab section) are on the horizontal central axis. In the embodiment shown in fig. 1, the first air blowing opening 11 is circular, the first air outlet 21 is circular, the longitudinal section of the inner wall of the first air duct 20 adjacent to the first air outlet 21 is also circular, and the annular air outlet gap 15 is also an annular air outlet gap 15.
With continued reference to fig. 2 and 5, in the embodiment of the present invention, when the airflow flows to the flow guiding element 30, the airflow first flows through the first arc-shaped section (ab-section), and the airflow is easily guided by the flow guiding element 30 because the first arc-shaped section (ab-section) is convex. Then, the air flows through the second arc-shaped section (bc section), and the second arc-shaped section (bc section) is designed to be concave, so that the air flow speed is accelerated to quickly impact the inner wall of the first air duct 20 away from the central axis of the first air outlet 21. The third arc-shaped section (cd section) is designed to be convex so as to be closer to the trend of the gradually-reduced inner wall of the first air duct 20, so that the resistance of the third arc-shaped section (cd section) is smaller when the airflow is guided by the gradually-reduced inner wall of the first air duct 20 and turns to turn towards the central axis of the first air outlet 21. The convex design of the fifth arc-shaped section (ef section) is used as the outer end surface of the flow guide member 30, and the convex design of the fifth arc-shaped section (ef section) can enable the flow guide member 30 to have a certain effect of converging the airflow forwards. The fourth arc-shaped section (de section) is used as a transition section of the third arc-shaped section (cd section) and the fifth arc-shaped section (ef section) and is in an outward convex shape, so that the airflow smoothly transits from the third arc-shaped section (cd section) to the fifth arc-shaped section (ef section). In the embodiment of the invention, the shape of the flow guide member 30 is specially designed, so that the whole flow guide member 30 is a symmetrical cone-like shape and is formed by rotating a flow guide line which comprises a convex first arc-shaped section (ab section), a concave second arc-shaped section (bc section), a convex third arc-shaped section (cd section), a convex fourth arc-shaped section (de section) and a convex fifth arc-shaped section (ef section) which are smoothly connected in sequence around a horizontal central axis for a circle, so that the flow resistance in the air flow flowing process is smaller, the energy loss and the noise are smaller, the convergence effect is more obvious, and the polymerization air supply effect of the first air outlet 21 is improved.
Further, the embodiment of the invention optimizes the size relationship of the arc-shaped sections to enhance the above effects. In some embodiments, the radius of the first arc segment (ab segment) is smaller than the radius of the third arc segment (cd segment), and preferably, the ratio of the radii of the first arc segment (ab segment) and the third arc segment (cd segment) is between 0.4 and 0.6, for example, the ratio of the radii is 0.4, 0.5, 0.6. The radius of the second arc-shaped segment (bc segment) is larger than the radius of the third arc-shaped segment (cd segment), preferably the ratio of the radii of the second arc-shaped segment (bc segment) and the third arc-shaped segment (cd segment) can be between 2.2 and 2.7, for example the ratio of radii is 2.2, 2.5, 2.7. The radius of the fourth arc-shaped segment (de segment) is smaller than or equal to the radius of the first arc-shaped segment (ab segment), and the ratio of the radius of the fourth arc-shaped segment (de segment) to the radius of the third arc-shaped segment (cd segment) can be preferably between 0.2 and 0.4, for example, the ratio of the radii is 0.2, 0.3 and 0.4. The radius of the fifth arc-shaped segment (ef segment) is larger than that of the third arc-shaped segment (cd segment), and the ratio of the radius of the fifth arc-shaped segment (ef segment) to that of the third arc-shaped segment (cd segment) can be preferably between 1.8 and 3.0, for example, the ratio of the radius is 1.8, 2.5 and 3.0.
As shown in fig. 2, the width D1 of the widest part of the baffle 30 may be greater than or equal to the width D2 of the first air outlet 21. The inventor proves that D is obtained by theoretical analysis and experiments1When the air flow is larger than or equal to D2, the obvious air flow converging effect can be ensured, and the appearance of the whole vertical air conditioner indoor unit is attractive.
With continued reference to fig. 2, 3, and 5, in some embodiments, the streamline shape of the inner wall of the tapered portion 150 of the first air chute 20 is the same as the streamline shape of the opposite portion of the baffle 30. In fig. 3, taking the streamline of the bottom section of the tapered portion 150 as an example, the streamline mainly includes an mn section and an np section, wherein the mn section has the same line type as the front section of the fourth arc section (de section) of the flow guide 30, and the np section has the same line type as the rear section of the fifth arc section (ef section) of the flow guide 30. Referring to fig. 2 and 3, the air inlet 22 of the first air duct 20 is located lower than the first air outlet 21, so that the air flows from bottom to top toward the diversion member 30, so that the air flow in the bottom section of the annular air outlet gap 15 drives the air flows in the other sections to flow upward and forward together. By positioning the air inlet 22 of the first air duct 20 lower than the first air outlet 21, the bottom section of the annular air outlet gap 15 is located upstream of other sections, so that the air flows into the bottom section of the annular air outlet gap 15 more smoothly. Based on the above two designs, the bottom section of the annular air-out gap 15 has larger air volume and stronger wind power than other sections. The bottom powerful airflow has advantages in the processes of impact and polymerization with the upper portion of the annular air outlet gap 15 and the airflows on the two transverse sides, and the airflow is more powerfully driven to integrally lift and flow upwards towards the front upper side together, so that a better lifting and air supply effect is achieved. The embodiment of the invention designs the shape of the first air duct 20, so that the streamline shape of the inner wall of the tapered part 150 of the first air duct 20 is the same as the streamline shape of the diversion line of the opposite part of the diversion piece 30, the air outlet resistance can be further reduced, the air outlet strength is improved, meanwhile, the position of the air inlet 22 of the first air duct 20 is lower than that of the first air outlet 21, the air flow flows to the diversion piece 30 from bottom to top, and the air flow of the bottom section of the annular air outlet gap 15 drives the air flow of the rest sections to flow upwards together forwards and upwards. 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 shower type refrigeration experience is realized, and the use comfort of a user is improved. Moreover, the air flow is blown upwards to be beneficial to improving the air supply distance.
In some embodiments, the upright air conditioning indoor unit further includes a deflector driving mechanism (not shown). The diversion part driving mechanism is installed on the first air duct 20 and used for supporting the diversion part 30 and driving the diversion part 30 to move back and forth so as to open and close the first air outlet 21 or adjust the air outlet area of the annular air outlet gap 15, so that the air outlet volume, the air speed and the air supply distance of the annular air outlet gap 15 are adjustable, and the air supply adjusting mode is enriched. The diversion member driving mechanism can be an electric telescopic rod. For example, the distance d1 between the widest point of the baffle 30 and the inner wall of the non-tapered portion of the first air chute 20, and the distance d2 between the section of the baffle 30 that is linear with the tapered portion 150 of the first air chute 20 and the inner wall of the tapered portion 150 of the first air chute 20 are labeled in fig. 2, wherein the ratio of the sizes of d2 and d1 may be 0.125-2; when the guide member 30 is moved to enable d1 to be larger than d2, the air outlet bundle is more obvious, and the air supply distance is longer; when the diversion member 30 is moved to make d1< d2, the air outlet is diffused and the air supply quantity is large.
The vertical air conditioner indoor unit further comprises: the baffle 80 is movably disposed and connected to one or more of the housing 10, the first air duct 20, and the second air duct 70, and is configured to open and close one or more of the second air supply outlet 13, the air outlet 702, the air inlet 701 of the second air duct 70, and the second air outlet 23, so that when the baffle 80 closes one or more of the second air supply outlet 13, the air outlet 702, the air inlet 701 of the second air duct 70, and the second air outlet 23, the air flow in the housing 10 is only discharged through the first air supply outlet 11. The baffle 80 may be provided outside the casing 10 to open and close the second blowing port 13; or may be disposed inside or outside the first air duct 20 to open and close the second air outlet 23; the air inlet 701 may be disposed inside or outside the second air duct 70, and is used for opening and closing the air outlet 702 or the second air duct 70; it may be disposed between the first air duct 20 and the second air duct 70 for opening and closing the second air outlet 23 or the air inlet 701 of the second air duct 70. Preferably, the baffle 80 is used to open and close the second air outlet 23 and/or the air inlet 701 of the second air duct 70 in order to guide the air flow in the first air duct 20 more clearly. In the embodiment shown in fig. 2, the baffle 80 is movably disposed at the joint of the first air duct 20 and the second air duct 70, and is used for opening and closing the second air outlet 23 or the air inlet 701 of the second air duct 70, so as to achieve communication or non-communication between the air inlet 701 of the second air duct 70 and the second air outlet 23.
With continued reference to fig. 3, the indoor unit of a floor air conditioner further includes: and the driving mechanism 90 is used for driving the baffle 80 to move back and forth so as to open and close the second air outlet 23 or the air inlet 701 of the second air duct 70. The driving mechanism 90 includes a rack 91, a gear 92 and a motor (not shown), wherein the rack 91 extends in the front-back direction and is fixed to the baffle 80; the gear 92 is engaged with the rack 91; the motor is installed between the first air duct 20 and the second air duct 70, and is used for driving the gear 92 to rotate so as to move the rack 91 in the front-back direction and further drive the baffle 80 to move in the front-back direction. The number of the driving mechanisms 90 may be one or more. For example, the two driving mechanisms 90 are arranged at intervals in the left-right direction, and are connected with different left-right positions of the baffle 80 and synchronously act, so that the baffle 80 keeps translating in the moving process as much as possible, and the deflection of each part caused by inconsistent moving steps is avoided. In the embodiment of fig. 2 and 3, the baffle 80 moves backward to close the second air outlet 23 and the air inlet 701 of the second air duct 70, and at this time, the air in the first air duct 20 flows out of the first air supply outlet 11 only through the first air outlet 21 (see the flow direction arrow in fig. 2), so as to realize the upward air supply. When the second air supply opening 13 is needed to supply air, the baffle 80 is moved forward, the second air outlet 23 and the air inlet 701 of the second air duct 70 are opened, and at this time, a part of the air flow in the first air duct 20 flows out of the first air supply opening 11 through the first air outlet 21, and a part of the air flow flows out of the second air supply opening 13 through the second air outlet 23, the air inlet 701 of the second air duct 70 and the air outlet 702 (see the air flow direction arrow in fig. 3).
Referring to fig. 2, 3 and 7, in some embodiments, the first air duct 20 includes a first section 251 and a second section 252 extending forward from the front of the upper end of the first section 251 of the first air duct 20, wherein the lower side of the first section 251 of the first air duct 20 is open to define the air inlet 22 of the first air duct 20, the rear of the upper end is open to define the second air outlet 23, and the front side of the second section 252 of the first air duct 20 opens the first air outlet 21. The second air duct 70 includes a first section 71 and a second section 72 extending forward from the upper end of the first section 71 of the second air duct 70, wherein the first section 71 of the second air duct 70 is located above the first section 251 of the first air duct 20, the lower side of the first section 71 is open to define an air inlet 701 of the second air duct 70, and the front side of the second section 72 of the second air duct 70 is provided with an air outlet 702. The shutter 80 has a top wall section 81 extending forward and backward, and opens and closes the second air outlet 23 or the air inlet 701 of the second air duct 70 by moving forward and backward. Through the special design of the structures of the first air duct 20, the second air duct 70 and the baffle 80, the arrangement structure of the first air duct 20, the second air duct 70 and the baffle 80 in the casing 10 can be more compact, and meanwhile, the airflow flowing characteristics are met.
With continued reference to FIG. 7, the second section 252 of the first air chute 20 has a circular longitudinal cross-section; the top wall section 81 has an upwardly curved arch; the front lower portion of the first section 71 of the second air duct 70 is correspondingly provided with an arc-shaped notch, and the top wall section 81 moves out of or into the second air duct 70 through the arc-shaped notch to open and close the air inlet 701 of the second air duct 70, so as to realize communication or non-communication between the air inlet 701 of the second air duct 70 and the second air outlet 23. By arranging the second section 252 of the first air duct 20 to have a circular longitudinal section, and correspondingly arranging the top wall section 81 of the baffle 80 to have an upwardly curved arch structure, and by arranging the second air duct 70 in a matching manner, when the baffle 80 closes the second air outlet 23, the air flow in the first air duct 20 moves along a smooth streamline in the process of flowing to the first air outlet 21, so that the wind loss is reduced. As shown in fig. 7, the baffle 80 may also have a rear wall section 82 extending up and down. The baffle 80 moves backwards, the baffle 80 moves into the second air duct 70 through the arc-shaped notch, the top wall section 81 closes the air inlet 701 of the second air duct 70, the rear wall section 82 is attached to the inner wall of the second air duct 70, and the air inlet 701 and the second air outlet 23 of the second air duct 70 are not communicated. The baffle 80 moves forward, the baffle 80 moves out of the second air duct 70 through the arc-shaped notch, the top wall section 81 is attached to the outer wall of the first air duct 20, the rear wall section 82 is close to the flow guide member 30, the air inlet 701 of the second air duct 70 is opened, and the air inlet 701 of the second air duct 70 is communicated with the second air outlet 23.
As shown in fig. 7, the first duct 20 may include a front case 201, a rear case 202, and a water tray 203. The rear and lower sides of the front case 201 are opened. The upper, front and lower sides of the rear case 202 are opened and the rear case 202 is fastened to the rear side of the front case 201. The front side of the front shell 201 is provided with a first air outlet 21. The rear upper portion of the front case 201 and the upper side of the rear case 202 define a second air outlet 23. 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 22 of the first air duct 20 opens on the water collector 203. The first air duct 20 is divided into the front shell 201, the rear shell 202 and the water pan 203, so that the parts can be independently processed and manufactured conveniently, and the performance requirement can be better met.
In some embodiments, the indoor unit of a floor type air conditioner may further include a heat exchanger 50 and a fan 60. The heat exchanger 50 is disposed in the housing 10. The fan 60 is also disposed in the casing 10, and is used for causing indoor air to enter the casing 10 to exchange heat with the heat exchanger 50, and then to be blown out from the first air supply outlet 11 and the second air supply outlet 13 through the first air duct 20.
With continued reference to fig. 7, the heat exchanger 50 may be disposed inside the first air duct 20 and mounted on the water-receiving tray 203. The heat exchanger 50 may have 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 22 of the first air duct 20, respectively. The inverted "v" shape of the heat exchanger 50 provides a sufficient heat exchange area, and provides a more sufficient contact and heat exchange efficiency with the upward air flow from the air inlet 22 of the first air duct 20. The water pan 203 is used for carrying the heat exchanger 50 on one hand and is used for receiving condensed water dropping from the surface of the heat exchanger 50 during air conditioning refrigeration on the other hand. The first air duct 20 may be located at the middle upper portion of the housing 10, and one or more air inlets 12 may be formed at the lower portion of the housing 10, for example, as shown in fig. 7, the air inlets 12 are formed at the rear side of the housing 10. The blower 60 may be installed below the first air duct 20 and facing the air inlet 22 of the first air duct 20 so as to blow the air flow entering the lower space of the housing 10 from the air inlet 12 toward the inside of the first air duct 20. The fan 60 may be a double suction centrifugal fan as shown in fig. 7, or may be another type of fan. It will be appreciated that when the fan 60 is a double suction centrifugal fan, a volute 61 and a motor 62 are provided in association.
Referring now to fig. 6, in some embodiments, the indoor unit of a floor air conditioner further includes: and the guide vanes 40 are arranged in the first air duct 20 and are used for combing the air flow flowing into the annular air outlet gap 15. When first gas outlet 21 air-out, the air-out of both sides does not receive effective guide, may lead to the rising momentum head too big, and whole air-out is comparatively in disorder, through setting up behind the stator 40, the air current can be combed once more, makes the air-out concentration higher, and it is more reasonable that the wind direction rises. In order to further enhance the combing effect, the guide vanes 40 are uniformly spaced and radially disposed on the inner side surface of the tapered portion 150 of the first air duct 20 along a direction perpendicular to the plane of the first air outlet 21, so as to comb the airflow flowing into the annular air outlet gap 15 in the radial direction of the first air outlet 21.
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 (9)
1. An indoor unit of a floor type air conditioner, comprising:
a housing having a first air supply outlet and a second air supply outlet;
the first air duct is arranged in the shell and provided with an air inlet, a first air outlet and a second air outlet, the first air outlet faces the first air supply outlet, and the inner wall of the first air duct close to the first air outlet is in a tapered shape with a gradually-reduced overflowing section along the airflow direction;
a second air duct disposed within the housing and having an air inlet and an air outlet, the air outlet facing the second supply air outlet, the air inlet of the second air duct configured to controllably communicate with the second air outlet to receive the air flow from the first air duct; and
the flow guide piece is arranged in the first air duct, defines an annular air outlet gap with the tapered part of the flow guide piece, and is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the airflow center direction under the guidance of the inner wall of the first air duct and flows out of the first air outlet and the first air supply outlet in sequence;
the water conservancy diversion spare is formed around horizontal central axis rotation a week by the water conservancy diversion line, the water conservancy diversion line is including the first segmental arc of evagination, the second segmental arc of indent, the third segmental arc of evagination, the fourth segmental arc of evagination and the fifth segmental arc of evagination that smoothly meet in proper order, and first segmental arc the second segmental arc the third segmental arc is keeping away from the place ahead to horizontal central axis gradually after, the terminal point of fifth segmental arc with the starting point of first segmental arc is located together on the horizontal central axis.
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 ratio of the radii of the first arcuate segment and the third arcuate segment is between 0.4 and 0.6;
the ratio of the radii of the second arcuate segment to the third arcuate segment is between 2.2 and 2.7;
the ratio of the radii of the fourth arc segment and the third arc segment is between 0.2 and 0.4;
the ratio of the radii of the fifth arcuate segment to the third arcuate segment is between 1.8 and 3.0.
3. 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 width of the widest part of the flow guide piece is greater than or equal to the width of the first air outlet; and/or
The streamline shape of the inner wall of the tapered part of the first air duct is the same as the linear shape of the diversion line of the part opposite to the diversion piece; and/or
The position of the air inlet of the first air duct is lower than that of the first air outlet, so that the air flow flows to the flow guide piece from bottom to top, and the air flow in the bottom section of the annular air outlet gap drives the air flow in the other sections to flow upwards together towards the front and the top.
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 vertical air conditioner indoor unit further comprises: and the baffle is movably arranged at the joint of the first air duct and the second air duct and is used for opening and closing the second air outlet and/or the air inlet of the second air duct so as to realize the communication or non-communication of the air inlet of the second air duct and the second air outlet.
5. The indoor unit of a floor air conditioner according to claim 4, further comprising:
the driving mechanism is used for driving the baffle to move back and forth so as to open and close the second air outlet or the air inlet of the second air duct; the driving mechanism comprises a rack, a gear and a motor, wherein the rack extends in the front-back direction and is fixed with the baffle; the gear is meshed with the rack; the motor is arranged between the first air duct and the second air duct and used for driving the gear to rotate so as to enable the rack to move in the front-back direction and further drive the baffle to move in the front-back direction.
6. The indoor unit of a floor air conditioner according to claim 4, wherein,
the first air duct comprises a first section and a second section extending forwards from the front part of the upper end of the first section of the first air duct, wherein the lower side of the first section of the first air duct is opened to define an air inlet of the first air duct, the rear part of the upper end of the first section of the first air duct is opened to define the second air outlet, and the front side of the second section of the first air duct is provided with the first air outlet;
the second air duct is positioned above the first air duct and comprises a first section and a second section extending forwards from the upper end of the first section of the second air duct, wherein the first section of the second air duct is positioned above the first section of the first air duct, the lower side of the first section of the second air duct is open to define an air inlet of the second air duct, and the front side of the second section of the second air duct is provided with an air outlet;
the baffle is provided with a top wall section extending forwards and backwards, and the air inlet of the second air duct is communicated or not communicated with the second air outlet through front and back movement.
7. The indoor unit of a floor air conditioner according to claim 6, wherein,
the second section of the first air duct has a circular longitudinal cross-section;
the top wall section has an upwardly curved arch;
the front lower part of the first segment of the second air duct is correspondingly provided with an arc-shaped notch, and the top wall segment moves out or moves into the second air duct through the arc-shaped notch to open and close the air inlet of the second air duct.
8. The indoor unit of a floor air conditioner according to claim 1, further comprising:
a heat exchanger disposed within the housing; and
and the 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 and the second air supply outlet through the air duct.
9. The indoor unit of a floor air conditioner according to claim 1,
the first air supply outlet is a circular opening formed in the upper part of the front side of the shell;
the first air outlet is a circular opening formed in the upper part of the front side of the first air duct;
the second air supply outlet is a transverse strip-shaped outlet positioned above the first air supply outlet;
the air outlet is a transverse strip-shaped opening arranged on the front side of the second air duct.
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| CN202010687190.4A CN111912018B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN202010687190.4A CN111912018B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN111912018A CN111912018A (en) | 2020-11-10 |
| CN111912018B true CN111912018B (en) | 2021-11-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111912017B (en) * | 2020-07-16 | 2021-11-23 | 青岛海尔空调器有限总公司 | Vertical air conditioner indoor unit |
| CN111912012B (en) * | 2020-07-16 | 2021-11-23 | 青岛海尔空调器有限总公司 | Vertical air conditioner indoor unit |
| CN114543168B (en) * | 2020-11-26 | 2023-05-16 | 青岛海尔空调器有限总公司 | Indoor unit of vertical air conditioner |
| CN113048565A (en) * | 2021-03-25 | 2021-06-29 | 珠海格力电器股份有限公司 | Air conditioner indoor unit, control method and air conditioner |
| CN115682152A (en) * | 2021-07-28 | 2023-02-03 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
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Inventor after: Li Yingshu Inventor after: Chen Huimin Inventor after: Wu Liqin Inventor after: Zhang Meijiao Inventor after: Chen Shaowen Inventor after: Li Jing Inventor after: Wang Yongtao Inventor before: Li Yingshu Inventor before: Chen Huimin Inventor before: Wu Liqin Inventor before: Zhang Meijiao Inventor before: Wang Yongtao |