CN111912015B - Vertical air conditioner indoor unit - Google Patents
Vertical air conditioner indoor unit Download PDFInfo
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- CN111912015B CN111912015B CN202010687022.5A CN202010687022A CN111912015B CN 111912015 B CN111912015 B CN 111912015B CN 202010687022 A CN202010687022 A CN 202010687022A CN 111912015 B CN111912015 B CN 111912015B
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- 230000001939 inductive effect Effects 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000001737 promoting effect Effects 0.000 claims description 4
- 230000008093 supporting effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 18
- 238000006116 polymerization reaction Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 230000001976 improved effect Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 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
- 230000000630 rising effect 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
- 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
- 230000006698 induction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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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-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention provides a vertical air conditioner indoor unit, comprising: the shell is provided with an air supply outlet, a first air inlet and a second air inlet; the inner wall of the air duct close to the air outlet is in a tapered shape with a gradually-reduced overflowing section along the airflow direction; the flow guide piece is arranged in the air duct and defines an annular air outlet gap with the tapered part of the air duct, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the airflow center direction under the guidance of the inner wall of the air duct and flows out of the air outlet and the air supply outlet; and the induced air channel is formed between the shell and the air channel and is provided with an inlet end communicated with the second air inlet and an outlet end communicated with the air supply outlet, and indoor air enters the shell through the second air inlet and is guided to the air supply outlet through the induced air channel. 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 enable the vertical air conditioner indoor unit to have an upward air outlet effect.
In particular, the present invention provides a vertical air conditioner indoor unit comprising:
the shell is provided with an air supply outlet, a first air inlet and a second air inlet;
the air duct is arranged in the shell and is provided with an air inlet and an air outlet facing the air supply outlet, and the inner wall of the air duct close to the air outlet is in a tapered shape with a gradually-reduced overflowing section along the airflow direction;
the air guide piece is arranged in the air duct and limits an annular air outlet gap with the gradually reduced part of the air duct, indoor air enters the shell through the first air inlet and is guided to the air guide piece through the air duct, and the air guide piece 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 air duct and flows out of the air outlet and the air supply outlet; and
and the air inducing channel is formed between the shell and the air channel and is provided with an inlet end communicated with the second air inlet and an outlet end communicated with the air supply outlet, indoor air enters the shell through the second air inlet and is guided to the air supply outlet through the air inducing channel, and the air flow passing through the air channel and the air flow passing through the air inducing channel are mixed at the air supply outlet and then flow into the room.
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 air outlet.
Optionally, the streamline shape of the inner wall of the tapered portion of the wind tunnel is the same as the streamline shape of the flow guide line of the opposite portion of the flow guide.
Optionally, the air inlet is lower than the air outlet, so that the airflow flows to the flow guide member from bottom to top, and the airflow in the bottom section of the annular air outlet gap drives the airflow in the other sections to flow upward and forward together.
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 through the first air inlet to exchange heat with the heat exchanger and then blow out from the air supply outlet through the air duct.
Optionally, the indoor unit of an upright air conditioner further includes: and the driving mechanism is arranged in the air duct and used for supporting the flow guide piece and driving the flow guide piece to move back and forth so as to adjust the air outlet area of the annular air outlet gap.
Optionally, the indoor unit of an upright air conditioner further includes: and the second fan is arranged in the induced air channel and used for promoting the indoor air to enter the shell through the second air inlet and then to be blown out from the air supply outlet through the induced air channel.
Optionally, the air supply outlet is arranged on the front side of the upper part of the shell;
the air outlet is arranged on the front side of the upper part of the air duct;
the air inducing channel is formed between the inner surface of the upper part of the shell and the outer surface of the upper part of the air channel, the second air inlet forms an inlet end of the air inducing channel, and an outlet end of the air inducing channel surrounds the air outlet.
Optionally, an inlet end of the induced draft passage is provided with an air inlet grille; and/or
The outlet end of the induced air channel is provided with an air outlet grid, the air outlet grid comprises a plurality of annular flow deflectors which are arranged at intervals, and the overflowing cross sections of the plurality of annular flow deflectors of the air outlet grid are gradually enlarged along the air flow direction.
In the vertical air conditioner indoor unit, the inner wall of the air duct close to the air outlet of the air duct 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 duct from the first air inlet flows to the air outlet, the air flow is guided by the flow guide piece to blow towards the inner wall of the air duct 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 meanwhile, the air flow can be guided to the annular air outlet gap just, or 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 shape of 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.
According to the vertical air conditioner indoor unit, the air inducing channel is arranged, indoor air enters the shell through the second air inlet and is guided to the air supply opening through the air inducing channel, so that the air flow finally flowing into the room of the vertical air conditioner indoor unit is formed by mixing the air flow passing through the air channel and the air flow passing through the air inducing channel, the air outlet is more comfortable, the difference value of the air outlet temperature and the room temperature is reduced, and the air outlet flow is prevented from being too cold or too hot. Particularly, in a cooling mode, when the polymerization air supply outlet is in high-speed jet flow cold air, negative pressure can be generated in the induced air channel, and hot air in the indoor environment at the rear part is attracted to enter the induced air channel, so that cool and not-cool comfortable even air is formed at the air supply outlet, meanwhile, the whole circulating air quantity is increased, and the room cooling speed is accelerated. In addition, in the vertical air conditioner indoor unit, the air inducing channel is formed between the casing and the air channel, and the main body part can be realized only by properly adding the baffle plate between the casing and the air channel, so that the whole structure is simple to assemble and easy to realize.
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 an air outlet is improved.
Furthermore, the air duct is specially designed in shape, so that the streamline shape of the inner wall of the tapered part of the 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 flow flows to the guide piece from bottom to top by enabling the position of the air inlet to be lower than the position of the air outlet, so that the air flow of the bottom section of the annular air outlet gap drives the air flow of the other 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 an indoor unit of a floor type air conditioner according to an embodiment of the present invention.
Fig. 2 is another schematic view of the indoor unit of the floor air conditioner shown in fig. 1.
Fig. 3 is a schematic cross-sectional view of portions of the casing, duct and baffle of the indoor unit of the floor air conditioner of fig. 1.
Fig. 4 is another cross-sectional view of a portion of the casing, duct and baffle of the indoor unit of the floor air conditioner of 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 schematic structural view of an indoor unit of a floor type air conditioner according to another embodiment of the present invention.
Fig. 7 is a cross-sectional view of a portion of the casing, duct and baffle of the indoor unit of the floor air conditioner of fig. 6.
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 an indoor unit of a floor type air conditioner according to an embodiment of the present invention. Fig. 2 is another schematic view of the indoor unit of the floor air conditioner shown in fig. 1. Fig. 3 is a schematic cross-sectional view of a portion of the casing 10, the duct 20, and the baffle 30 of the indoor unit of the stand air conditioner shown in fig. 1. Fig. 4 is another cross-sectional view of a portion of the casing 10, the duct 20, and the baffle 30 of the indoor unit of the stand 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 schematic structural view of an indoor unit of a floor type air conditioner according to another embodiment of the present invention. Fig. 7 is a cross-sectional view of a portion of the casing 10, the duct 20, and the baffle 30 of the indoor unit of the stand air conditioner shown in fig. 6.
As shown in fig. 1 to 7, the indoor unit of a floor air conditioner according to an embodiment of the present invention may generally include a case 10, an air duct 20, a baffle 30, and an air induction passage 50. The housing 10 has an air supply outlet 11, a first air inlet (not shown) and a second air inlet 13. The air blowing port 11 is 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 number of the air blowing ports 11 may be one or more. The first and second air inlets 13 of the housing 10 are used to introduce indoor air.
The air duct 20 is disposed in the casing 10, and has an air inlet 22 and an air outlet 21 facing the air supply opening 11, and is used for guiding the air flow in the casing 10 to the air supply opening 11, and an inner wall of the air duct 20 adjacent to the air outlet 21 is tapered such that an overflowing cross section thereof gradually decreases along an air flow direction. In other words, the flow cross section of the air duct 20 becomes gradually smaller in the air flow direction adjacent to the air outlet 21.
The air guiding element 30 is disposed in the air duct 20 and defines an annular air outlet gap 15 with the tapered portion 150 thereof, the indoor air enters the housing 10 through the first air inlet and is guided to the air guiding element 30 by the air duct 20, and the air guiding element 30 is configured to guide the airflow to the annular air outlet gap 15 so that the airflow gradually converges toward the airflow center direction under the guidance of the inner wall of the air duct 20 and sequentially flows out of the air outlet 21 and the air supply outlet 11 (the airflow direction is indicated by arrows in fig. 3 and 4).
The induced air channel 50 is formed between the housing 10 and the air duct 20, and has an inlet end communicated with the second air inlet 13 and an outlet end communicated with the air supply outlet 11, the room air enters the housing 10 through the second air inlet 13 and is guided to the air supply outlet 11 through the induced air channel 50, and the air flow passing through the air duct 20 and the air flow passing through the induced air channel 50 are mixed at the air supply outlet 11 and then flow into the room. It can be understood that the first air inlet and the second air inlet 13 are relative terms, and the air entering the housing 10 from the first air inlet reaches the air outlet 21 and the air supply outlet 11 in sequence through the air outlet gap 15, and the air entering the housing 10 from the second air inlet 13 reaches the air supply outlet 11 through the induced air passage 50.
In the vertical air conditioner indoor unit of the embodiment of the invention, the inner wall of the air duct 20 close to the air outlet 21 is tapered, so that the overflowing section is gradually reduced along the airflow direction. Furthermore, the air deflector 30 inside the air duct 20 and the tapered portion 150 of the inner wall of the 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 air duct 20 from the first air inlet flows to the 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 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 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 15 with the inner wall of the 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 towards the annular air outlet gap 15, so as to force the air flow to be subjected to the polymerization and guidance of the tapered inner wall, and form the final polymerization air outlet effect. The invention realizes a very good polymerization air supply effect only by improving the shape of the air duct 20 and additionally arranging the flow guide member 30, has very simple structure and lower cost, is easy to realize mass production and popularization, and has very ingenious conception.
In the indoor unit of the vertical air conditioner, the air inducing channel 50 is arranged, indoor air enters the shell 10 through the second air inlet 13 and is guided to the air supply outlet 11 through the air inducing channel 50, so that the air flow finally flowing into the room of the indoor unit of the vertical air conditioner is formed by mixing the air flow passing through the air channel 20 and the air flow passing through the air inducing channel 50, the air outlet is more comfortable, the difference between the air outlet temperature and the room temperature is reduced, and the air outlet flow is prevented from being too cold or too hot. Particularly, in the cooling mode, when the polymerization air supply outlet 11 is in high-speed jet flow cold air, negative pressure is generated in the induced air channel 50, and hot air in the indoor environment at the rear part is attracted to enter the induced air channel 50, so that cool but not cold comfortable even air is formed at the air supply outlet 11, meanwhile, the whole circulating air quantity is increased, and the room cooling speed is accelerated. In addition, in the indoor unit of the floor air conditioner of the present invention, the air inducing channel 50 is formed between the casing 10 and the air duct 20, and the main body thereof can be realized only by adding a baffle plate between the inside of the casing 10 and the outside of the air duct 20, so that the whole structure is simple to assemble and easy to realize.
Referring to fig. 5, in some embodiments, the flow guiding member 30 is formed by rotating a flow guiding line around a horizontal central axis for one circle, the flow guiding line includes a first arc-shaped section (ab section) which is convex outwards, a second arc-shaped section (bc section) which is concave inwards, a third arc-shaped section (cd section) which is convex outwards, a fourth arc-shaped section (de section) which is convex outwards and a fifth arc-shaped section (ef section) which are convex outwards, the first arc-shaped section (ab section), the second arc-shaped section (bc section) and the third arc-shaped section (cd section) are gradually far away from the horizontal central axis from the backward direction to the front direction, and the terminal point of the fifth arc-shaped section (ef section) and the starting point of the first arc-shaped section (ab section) are on the horizontal central axis. In the embodiment shown in fig. 1, the air supply opening 11 is circular, the air outlet 21 is circular, the longitudinal section of the inner wall of the air duct 20 adjacent to the air outlet 21 is also circular, and the annular air outlet gap 15 is also a circular air outlet gap 15.
With continued reference to fig. 3 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 of a convex design. Then 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 flow velocity of the air flow is accelerated to quickly impact the inner wall of the air duct 20 away from the central axis of the air outlet 21. The third arc-shaped section (cd section) is of a convex design and is closer to the trend of the gradually-reduced inner wall of the air duct 20, so that the resistance of the third arc-shaped section (cd section) to the airflow is smaller in the process that the airflow is guided by the gradually-reduced inner wall of the air duct 20 and turns to turn towards the central axis of the air outlet 21. The convex design of the fifth arc-shaped section (ef section) is designed into a convex shape considering as the outer end surface of the flow guide member 30, so that the flow guide member 30 itself has a certain effect of converging the airflow forward. 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). The embodiment of the invention makes the whole flow guide member 30 be a symmetrical cone-like shape by specially designing the shape of the flow guide member 30, and the flow guide member is formed by rotating a circle around a horizontal central axis by a flow guide line comprising 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, 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 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. 3The width D1 of the widest part of the baffle 30 may be greater than or equal to the width D2 of the 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. 3 and 5, in some embodiments, the streamline shape of the inner wall of the tapered portion 150 of the wind tunnel 20 is the same as the streamline shape of the flow guide line of the opposite portion of the flow guide 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. 3, the air inlet 22 is located lower than the air outlet 21, so that the air flows from bottom to top to the air guiding element 30, so that the air flow in the bottom section of the annular air outlet gap 15 drives the air flow in the remaining sections to flow upward and forward together. By positioning the air inlet 22 lower than the air outlet 21, the bottom section of the annular outlet gap 15 is located upstream of the other sections, so that the air flows into the bottom section of the annular 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 air duct 20 specially, so that the streamline shape of the inner wall of the tapered part 150 of the air duct 20 is the same as the streamline shape of the guide line of the opposite part of the guide member 30, the air outlet resistance can be further reduced, the air outlet strength is improved, meanwhile, the position of the air inlet 22 is lower than that of the air outlet 21, and the airflow flows to the guide member 30 from bottom to top, so that the airflow in the bottom section of the annular air outlet gap 15 drives the airflow in the other 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.
In some embodiments, the first air inlet may be opened at left and right side walls and/or a rear wall of the lower portion of the housing 10. The indoor unit of a floor type air conditioner may further include a heat exchanger (not shown) and a first fan (not shown). The heat exchanger is disposed within the housing 10. The first fan is also disposed in the casing 10, and is configured to cause indoor air to enter the casing 10 through the first air inlet to exchange heat with the heat exchanger, and then to be blown out from the air supply outlet 11 through the air duct 20. It will be appreciated that the heat exchanger and the first fan may be selected and arranged as desired and are described herein for exemplary purposes only. For example, when the first air inlet is opened on the rear wall of the housing 10, the heat exchanger may be plate-shaped and vertically disposed on the front side of the air inlet; the first fan can be an axial flow fan or a centrifugal fan and is arranged on the front side of the heat exchanger; an air inlet 22 is formed in the bottom of the air duct 20, and the heat exchanger and the first fan are both located below the air inlet 22. For another example, when the first air inlet is formed in the left and right side walls of the casing 10, the heat exchanger may be an inverted V-shaped two-stage structure and is disposed in the air duct 20; a water pan is arranged at the bottom of the air duct 20 and used for receiving the heat exchanger, and an air inlet 22 is arranged on the water pan; the first fan is preferably a double-suction centrifugal fan, and is disposed below the air duct 20, and the two air suction openings are respectively disposed corresponding to the first air inlets on one side.
In some embodiments, the upright air conditioning indoor unit further includes a driving mechanism (not shown). The driving mechanism is installed in the air duct 20 and used for supporting the flow guide piece 30 and driving the flow guide piece 30 to move back and forth so as to open and close the 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 can be adjusted, and the air supply adjusting mode is enriched. The 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 wind tunnel 20, and the distance d2 between the section of the baffle 30 that is linear with the tapered portion 150 of the wind tunnel 20 and the inner wall of the tapered portion 150 of the wind tunnel 20 are labeled in fig. 3, 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.
In some embodiments, the indoor unit of a floor type air conditioner further includes: and a second fan 70 disposed in the induced air duct 50 for causing the indoor air to enter the housing 10 through the second air inlet 13 and then to be blown out from the air outlet 11 through the induced air duct 50. The second fan 70 may be, for example, a centrifugal fan, or may be another type of fan. The second fan 70 is arranged to promote the indoor air to enter the housing 10 through the second air inlet 13, and compared with the passive drainage without the second fan 70, the second fan 70 is arranged to increase the proportion of the natural wind in the mixed air flow, and the proportion of the natural wind in the mixed air flow can be adjusted by adjusting the rotating speed of the second fan 70. The natural wind is relative to the heat exchange wind after heat exchange through the heat exchanger.
In some embodiments, the air supply outlet 11 is opened at the upper front side of the casing 10; the air outlet 21 is arranged at the front side of the upper part of the air duct 20; the induced air passage 50 is formed between the inner surface of the upper portion of the housing 10 and the outer surface of the upper portion of the air duct 20, the second air inlet 13 forms an inlet end of the induced air passage 50, and an outlet end of the induced air passage 50 surrounds the air outlet 21. Referring to fig. 3 and 6, the second air inlet 13 is used as the inlet end of the induced air channel 50, the outlet end of the induced air channel 50 penetrates around the air outlet 21, and the lower portion thereof avoids the air duct 20 inside, so that the two air flows at the air supply opening 11 can be mixed more uniformly. The second fan 70 may be disposed adjacent to the second air inlet 13 between the rear wall of the casing 10 and the rear wall of the air duct 20, so that the entire interior structure of the indoor unit of the floor air conditioner is more compact.
Referring to fig. 2 and 6, in some embodiments, an air intake grille 51 may also be provided at the inlet end of the induced air passage 50; and/or the outlet end of the induced air channel 50 is provided with an air outlet grid 60, the air outlet grid 60 comprises a plurality of annular flow deflectors arranged at intervals, and the flow cross sections of the plurality of annular flow deflectors of the air outlet grid 60 are gradually enlarged along the airflow direction. The arrangement of the inlet grille 51 and the outlet grille 60 can improve the appearance of the indoor unit of the vertical air conditioner, and the annular divergent structure of the outlet grille 60 can enhance the mixing of the two air flows at the air supply outlet 11.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An indoor unit of a floor type air conditioner, comprising:
the shell is provided with an air supply outlet, a first air inlet and a second air inlet;
the air duct is arranged in the shell and provided with an air inlet and an air outlet facing the air supply outlet, and the inner wall of the air duct close to the air outlet is in a tapered shape with a gradually-reduced overflowing section along the airflow direction;
the air guide piece is arranged in the air duct and limits an annular air outlet gap with the tapered part of the air duct, indoor air enters the shell through the first air inlet and is guided to the air guide piece through the air duct, and the air guide piece 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 air duct and flows out of the air outlet and the air supply outlet; and
the induced air channel is formed between the shell and the air channel and is provided with an inlet end communicated with the second air inlet and an outlet end communicated with the air supply outlet, indoor air enters the shell through the second air inlet and is guided to the air supply outlet through the induced air channel, and the airflow passing through the air channel and the airflow passing through the induced air channel are mixed at the air supply outlet and then flow into a room;
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 position of the flow guide piece is more than or equal to the width of the air outlet.
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 streamline shape of the inner wall of the tapered part of the air duct is the same as the linear shape of the diversion line of the part opposite to the diversion piece.
5. 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 position of the air inlet is lower than that of the 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 other sections to flow upwards together.
6. The indoor unit of a floor air conditioner according to claim 1, further comprising:
a heat exchanger disposed within the housing; and
and the first fan is arranged in the shell and used for promoting indoor air to enter the shell through the first air inlet to exchange heat with the heat exchanger and then blow out from the air supply outlet through the air duct.
7. The indoor unit of a floor air conditioner according to claim 1, further comprising:
and the driving mechanism is arranged in the air duct and used for supporting the flow guide piece and driving the flow guide piece to move back and forth so as to adjust the air outlet area of the annular air outlet gap.
8. The indoor unit of a floor air conditioner according to claim 1, further comprising:
and the second fan is arranged in the induced air channel and used for promoting indoor air to enter the shell through the second air inlet and then blow out from the air supply outlet through the induced air channel.
9. The indoor unit of a floor air conditioner according to claim 1,
the air supply outlet is formed in the front side of the upper part of the shell;
the air outlet is formed in the front side of the upper part of the air duct;
the air inducing channel is formed between the inner surface of the upper portion of the shell and the outer surface of the upper portion of the air channel, the second air inlet forms an inlet end of the air inducing channel, and an outlet end of the air inducing channel surrounds the air outlet.
10. The indoor unit of a floor air conditioner according to claim 1,
an air inlet grille is arranged at the inlet end of the induced air channel; and/or
The outlet end of the induced air channel is provided with an air outlet grid, the air outlet grid comprises a plurality of annular flow deflectors which are arranged at intervals, and the overflowing cross sections of the annular flow deflectors of the air outlet grid are gradually enlarged along the airflow direction.
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| CN202010687022.5A CN111912015B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN202010687022.5A CN111912015B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN111912015B true CN111912015B (en) | 2021-11-23 |
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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 |
| CN114508789A (en) * | 2020-11-17 | 2022-05-17 | 青岛海尔空调器有限总公司 | Vertical air conditioner indoor unit |
| CN114508788B (en) * | 2020-11-17 | 2024-05-24 | 青岛海尔空调器有限总公司 | Indoor unit of vertical air conditioner |
| CN112524693B (en) * | 2020-11-27 | 2022-12-23 | 青岛海尔空调器有限总公司 | Vertical air conditioner indoor unit |
| CN114877511A (en) * | 2021-02-05 | 2022-08-09 | 青岛海尔智能技术研发有限公司 | Air supply device and air conditioner |
| CN113028506B (en) * | 2021-03-23 | 2022-07-08 | 青岛海信日立空调系统有限公司 | Indoor unit of air conditioner |
| CN113566295A (en) * | 2021-07-28 | 2021-10-29 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN113932299B (en) * | 2021-10-12 | 2022-12-23 | 青岛海尔空调器有限总公司 | Indoor cabinet air conditioner and air conditioner |
| CN114294711B (en) * | 2021-12-08 | 2023-07-04 | 约克广州空调冷冻设备有限公司 | Fan coil |
| CN114713857B (en) * | 2022-03-01 | 2024-01-30 | 大族激光科技产业集团股份有限公司 | Air current integration structure and 3D printing apparatus |
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