CN111912010B - Vertical air conditioner indoor unit - Google Patents
Vertical air conditioner indoor unit Download PDFInfo
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- CN111912010B CN111912010B CN202010686991.9A CN202010686991A CN111912010B CN 111912010 B CN111912010 B CN 111912010B CN 202010686991 A CN202010686991 A CN 202010686991A CN 111912010 B CN111912010 B CN 111912010B
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- air
- outlet
- air outlet
- airflow
- air supply
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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
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
Abstract
The invention provides a vertical air conditioner indoor unit, which comprises a shell, wherein the front side of the shell is provided with a first air supply outlet; the air duct is arranged in the shell, is provided with an air inlet and a first air outlet facing the first air supply outlet and is used for guiding airflow in the shell to the first air supply outlet, and the inner wall of the air duct close to the first air outlet is in a tapered shape with a gradually-reduced overflowing section along the airflow direction; the flow guide piece is arranged in the air duct in a vertically-moving mode, an annular air outlet gap is limited by the flow guide piece and the tapered part of the flow guide piece, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the center of the airflow under the guidance of the inner wall of the air duct and sequentially flows out of the first air outlet and the first air supply outlet; and the driving mechanism is used for driving the flow guide piece to move up and down so as to adjust the sizes of the air outlet sections of the top section and the bottom section of the annular air outlet gap, and therefore the air supply angle of the first air supply opening is changed. The vertical air conditioner indoor unit has better remote air supply and powerful air supply effects.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a vertical air conditioner indoor unit.
Background
Compared with a wall-mounted air conditioner indoor unit, the vertical air conditioner indoor unit has the advantages of larger number of units and stronger refrigerating and heating capacity, and is usually placed in indoor spaces with larger areas, such as a living room.
Because the coverage area of the vertical air conditioner indoor unit is larger, the vertical air conditioner indoor unit needs to have stronger long-distance air supply capacity and strong air outlet capacity. In order to realize remote air supply of the existing products, the rotating speed of a fan is generally increased so as to improve the wind speed and the wind quantity. However, the improvement of the rotating speed of the fan can cause a series of problems such as the increase of the power of the air conditioner, the increase of noise and the like, and the user experience is influenced.
Disclosure of Invention
The 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 up-and-down air supply angle of the remote air supply outlet to be adjustable.
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:
a housing having a first air supply port at a front side thereof;
the air duct is arranged in the shell, is provided with an air inlet and a first air outlet facing the first air supply outlet and is used for guiding airflow in the shell to the first air supply outlet, and the inner wall of the air duct close to the first air outlet is in a tapered shape with a gradually-reduced overflowing section along the airflow direction;
the flow guide piece is arranged in the air duct in a vertically-moving mode, an annular air outlet gap is limited by the flow guide piece and the tapered part of the flow guide piece, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the center of the airflow under the guidance of the inner wall of the air duct and sequentially flows out of the first air outlet and the first air supply outlet; and
and the driving mechanism is used for driving the diversion piece to move up and down so as to adjust the sizes of the air outlet sections of the top section and the bottom section of the annular air outlet gap, and thus the air supply angle of the first air supply outlet is changed.
Optionally, the drive mechanism comprises: a rack extending in the up-down direction and fixed to the guide member; a gear engaged with the rack; and the motor is arranged in the air duct and used for driving the gear to rotate so as to enable the rack to drive the flow guide piece to move up and down.
Optionally, the outer surface of the flow guide comprises: the outer end face faces the first air outlet; the outer peripheral surface extends out from the edge of the outer end surface along the direction far away from the first air outlet; the air guide surface extends obliquely from the edge of the outer peripheral surface along the direction far away from the first air outlet and towards the central axis direction of the first air outlet; and the inner end surface is connected with the edge of the air guide surface, and a rack is formed on the inner end surface.
Optionally, the casing is further provided with two second air supply outlets, the two second air supply outlets are respectively located at two transverse sides of the casing and are lower than the first air supply outlet; and the two transverse sides of the air duct are respectively provided with a second air outlet so as to be respectively matched with the two second air supply outlets.
Optionally, the first air supply outlet, the first air outlet and the flow guide piece are all oblong circles which are vertically arranged in the length direction on the whole; and each second air supply outlet is a long strip vertically arranged in the length direction.
Optionally, the air duct is configured to make the rising angle of the airflow at the bottom section of the annular air outlet gap larger than the declining angle of the airflow at the top section of the annular air outlet gap, so that the airflow at the bottom section of the annular air outlet gap drives the airflow at the rest sections to flow upward and forward together.
Optionally, the inner walls of the air duct adjacent to the top edge and the two lateral side edges of the first air outlet are inclined gradually from back to front toward the horizontal central axis of the first air outlet, and the inner wall adjacent to the bottom edge of the first air outlet extends in the vertical direction.
Optionally, the air inlet is positioned lower than the first air outlet so that the air flow flows from bottom to top towards the flow guide member.
Optionally, the duct has a constriction with a smaller cross-sectional area than the remaining sections, the constriction being located upstream of the flow guide to accelerate the flow of air before it reaches the flow guide.
Optionally, the indoor unit of an upright air conditioner further includes: the heat exchanger is arranged in the air duct and is used for exchanging heat with air flow flowing through the air duct; and the fan is arranged in the shell and used for promoting indoor air to enter the shell and the air channel.
In the vertical air conditioner indoor unit, the inner wall of the air duct close to the first air outlet is gradually reduced, so that the flow cross section is gradually reduced along the airflow direction. And an annular air outlet gap is defined between the flow guide piece inside the air duct and the tapered part of the inner wall of the air duct. Therefore, in the process that the air flow (heat exchange air flow, fresh air flow and the like) entering the air channel from the air inlet of the air channel flows to the first air outlet, the air flow is guided by the flow guide piece to blow towards the inner wall of the air channel and finally flows into the annular air outlet gap. Because the air outlet cross section of the annular air outlet gap is smaller, the air outlet speed is higher. The high-speed airflow is gradually converged towards the center of the airflow in the outward flowing process under the guidance of the gradually-reduced inner wall of the air duct to form a convergence effect, so that the wind power is stronger, the air supply distance is longer, and the requirements of the indoor unit of the vertical air conditioner on long-distance air supply and strong air supply are met.
Furthermore, the vertical air conditioner indoor unit of the invention enables the upper and lower air supply angles of the first air supply outlet to be adjustable. The driving mechanism can drive the diversion piece to move up and down so as to adjust the distance between the upper end and the lower end of the diversion piece and the inner wall (the tapered part) of the air duct, and therefore the size of the air outlet section of the top section and the size of the air outlet section of the bottom section of the annular air outlet gap can be adjusted. For example, after the diversion member is translated upwards, the air outlet section at the top section of the annular air outlet gap becomes smaller, and the air volume becomes smaller; bottom district section air-out cross-section grow, the amount of wind grow finally leads to the whole air supply angle of first supply-air outlet to compare and adjust preceding slope. In a similar way, after the diversion piece is translated downwards, the whole air supply angle of the first air supply outlet is adjusted to be inclined downwards. If the flow guide piece is made to move up and down in a reciprocating mode, the up-and-down air swinging of the first air supply opening can be achieved. Therefore, the air supply adjusting mode of the first air supply outlet is enriched.
Furthermore, in the indoor unit of the vertical air conditioner, the flow guide piece and the inner wall of the air duct define an annular air outlet gap to achieve the effect of increasing the air speed, and meanwhile, the air flow can be guided to the annular air outlet gap or forced to flow towards the annular air outlet gap so as to force the air flow to be subjected to polymerization and guide of the tapered inner wall, and a final polymerization air outlet effect is formed. The invention realizes a good polymerization air supply effect only by improving the air duct and additionally arranging the flow guide piece, has very simple structure and lower cost, is easy to realize mass production and popularization, and has very ingenious conception.
Furthermore, the shape of the air duct of the vertical air conditioner indoor unit is designed, so that the uplifting angle of the airflow at the bottom section of the annular air outlet gap is larger than the downward inclination angle of the airflow at the top section, and the airflow mixed by the multiple airflows integrally flows 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 the shower type refrigeration experience is realized. The air flow is blown upward to be beneficial to improving the air supply distance. And the air flow uplifting angle can be adjusted by moving the flow guide piece up and down.
In addition, the air inlet of the air duct is lower than the first air outlet, so that the bottom section of the annular air outlet gap is positioned at the upstream of the air duct compared with other sections, and air flow can flow into the bottom section more smoothly. The inner wall of the air duct close to the bottom section of the first air outlet extends along the vertical direction, so that the gap space of the bottom section of the annular air outlet gap is larger. Based on the design of the two points, the bottom section of the annular air outlet gap is larger in air volume and stronger in wind power compared with other sections. The bottom powerful airflow has advantages in the processes of impact and polymerization with the airflow on the upper part of the annular air outlet gap and the airflow on the two transverse sides, and the airflow is more powerfully driven to integrally lift and flow upwards and upwards together, so that a better lifting and air supply effect is realized.
Furthermore, the vertical air conditioner indoor unit of the invention designs the appearance of the flow guide piece specially, so that the flow guide piece comprises an outer end surface, an outer peripheral surface, a wind guide surface and an inner end surface. The outer peripheral surface and the air duct inner wall define an annular air outlet gap, and the outer surface of the obliquely extending air guide surface is used for guiding air flow, so that the air flow flows to the air duct inner wall more stably and smoothly, and resistance loss is reduced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of an indoor unit of a floor type air conditioner according to an embodiment of the present invention;
fig. 2 is a front view of the indoor unit of the floor type air conditioner shown in fig. 1;
fig. 3 is an exploded view of the indoor unit of the floor type air conditioner shown in fig. 1;
fig. 4 is a cross-sectional view of the indoor unit of the floor air conditioner shown in fig. 2, taken along line N-N;
FIG. 5 is an enlarged view of the top structure of FIG. 4;
FIG. 6 is a schematic view of the arrangement of FIG. 5 after the baffle has been advanced;
FIG. 7 is an exploded schematic view of the air chute;
fig. 8 is an exploded view of the baffle.
Detailed Description
The embodiment of the invention provides an indoor unit of a vertical air conditioner, which is an indoor part of a split air conditioner and is used for conditioning indoor air, such as refrigeration/heating, dehumidification, fresh air introduction and the like.
Fig. 1 is a schematic structural view of an indoor unit of a floor type air conditioner according to an embodiment of the present invention; fig. 2 is a front view of the indoor unit of the floor type air conditioner shown in fig. 1; fig. 3 is an exploded view of the indoor unit of the floor type air conditioner shown in fig. 1; fig. 4 is a cross-sectional view of the indoor unit of the floor air conditioner shown in fig. 2, taken along line N-N; FIG. 5 is an enlarged view of the top structure of FIG. 4; fig. 6 is a schematic view of the structure of fig. 5 after the flow guide has been advanced.
As shown in fig. 1 to 5, the indoor unit of a floor air conditioner according to an embodiment of the present invention may generally include a case 10, a duct 20, a baffle 30, and a driving mechanism 70.
The casing 10 has a first air outlet 11 at a front side thereof, and the first air outlet 11 is used for blowing an air flow in the casing 10 into a room to condition indoor air. The air flow can be cold air produced by the indoor unit of the vertical air conditioner in a refrigeration mode, hot air produced in a heating mode, or fresh air introduced in a fresh air mode, and the like. The number of the first blowing ports 11 may be one or more. An air duct 20 is provided in the housing 10, and has an air inlet 23 and a first air outlet 21 facing the first air blowing port 11, for guiding the air flow in the housing 10 to the first air blowing port 11.
For example, the indoor unit of a floor air conditioner may be an indoor unit of an air conditioner that performs cooling/heating by a vapor compression refrigeration cycle, and further includes a heat exchanger 40 and a fan 50. The heat exchanger 40 is disposed in the air duct 20, and is configured to exchange heat with air flowing through the air duct to form heat exchange air flow, i.e., cold air or hot air. The fan 50 is disposed in the casing 10, and is configured to cause indoor air to enter the casing 10, then enter the air duct 20, to complete heat exchange with the heat exchanger 40 to form a heat exchange airflow, and then cause the heat exchange airflow to flow through the air duct 20 to the first air supply outlet 11, and finally blow the heat exchange airflow into the room from the first air supply outlet 11. The case 10 may be provided with an air inlet portion 13 to allow indoor air to enter the case 10 through the air inlet portion 13. The housing 10 may be formed by combining a front cabinet 101 and a rear cabinet 102.
As shown in fig. 3 to 5, the inner wall of the air duct 20 adjacent to the first air outlet 21 is tapered, and the flow cross section of the inner wall gradually decreases along the airflow direction. In other words, the flow cross section of the air duct 20 becomes gradually smaller in the air flow direction adjacent to the first air outlet 21. The air guiding element 30 is disposed in the air duct 20 in a vertically translatable manner, and defines an annular air outlet gap 25 together with the aforementioned tapered portion of the air duct 20. The ring shape is not limited to a circular ring shape, and may be other various "ring shapes" such as a long circular ring shape, a square ring shape, an elliptical ring shape, and the like. The guiding element 30 is used for guiding the airflow to the annular air outlet gap 25, so that the airflow gradually converges toward the airflow center direction under the guidance of the inner wall of the air duct 20, and flows out of the first air outlet 21 and the first air supply outlet 11 in sequence (the airflow direction is indicated by arrows in fig. 4).
The driving mechanism 70 is used for driving the diversion member 30 to move up and down so as to adjust the sizes of the air outlet sections of the top section and the bottom section of the annular air outlet gap 25, thereby changing the air supply angle of the first air supply outlet 11, specifically, the upper and lower air supply angles (i.e., the included angle between the air supply direction and the horizontal plane).
In the embodiment of the present invention, the air flow entering the air duct 20 from the air inlet 23 of the air duct 20 is guided by the flow guiding member 30 to blow toward the inner wall of the air duct 20 in the process of flowing to the first air outlet 21, and finally flows into the annular air outlet gap 25. Because the air outlet cross section of the annular air outlet gap 25 is smaller, the air outlet speed is higher. The high-speed airflow is gradually converged toward the center of the airflow in the process of flowing to the outer side of the first air outlet 21 under the guidance of the inner wall of the tapered air duct 20, so that a convergence effect is formed, the wind power is stronger, and the air supply distance is longer. Therefore, the embodiment of the invention meets the requirements of the vertical air conditioner indoor unit on long-distance air supply and strong air supply. The diversion member 30 not only defines the annular air outlet gap 25 with the inner wall of the air duct 20 to achieve the effect of increasing the air speed, but also just guides the air flow to the annular air outlet gap 25, or forces the air flow to flow toward the annular air outlet gap 25 to impact the inner wall of the air duct 20, so that the air flow is forced to be subjected to polymerization and guidance of the tapered inner wall, and a final polymerization air outlet effect is formed. The embodiment of the invention realizes a very good polymerization air supply effect only by improving the shape of the air duct 20 and additionally arranging the flow guide member 30, has very simple structure and lower cost, is easy to realize mass production and popularization, and has very ingenious conception.
In the embodiment of the present invention, the diversion member 30 can move up and down, so that the distance between the upper end and the lower end of the diversion member and the inner wall of the air duct 20 (specifically, the tapered portion of the inner wall of the air duct 20) can be adjusted, and the sizes of the air outlet sections of the top section and the bottom section of the annular air outlet gap 25 can be adjusted, thereby adjusting the upper and lower air supply angles of the first air supply opening 11. For example, after the air guiding element 30 is translated upwards (for example, adjusted from the state of fig. 5 to the state of fig. 6), the air outlet cross section of the top section of the annular air outlet gap 25 becomes smaller, and the air volume will become smaller; the air outlet section of the bottom section is enlarged, and the air volume is enlarged. Due to the tapered structure of the inner wall of the air duct, the outlet air flow of the bottom section of the annular outlet air gap 25 is inclined upwards, and the outlet air flow of the top section is inclined downwards. The bottom section air quantity increasing enables the whole wind power of the upward inclined wind to be stronger, and the whole wind power of the upward inclined wind is dominant under the impact effect of the air outlet flow of other sections, so that the whole air supply angle of the first air supply opening 11 is adjusted to be inclined upwards. Similarly, the downward translation of the baffle 30 (e.g., adjustment from the state of fig. 6 to the state of fig. 5) will result in the overall blowing angle of the first blowing opening 11 being inclined downward compared to the adjustment front. If the diversion member 30 is moved up and down, the first air supply port 11 can swing up and down. It can be seen that the embodiment of the present invention enriches the air supply adjusting mode of the first air supply outlet 11. When the vertical air conditioner indoor unit carries out refrigeration, the upward moving guide piece 30 can be selected to ensure that the first air supply outlet 11 supplies air upwards as much as possible; when heating, the diversion member 30 can be selected to move downwards, so that the first air supply outlet 11 supplies air downwards as much as possible.
In some embodiments, the drive mechanism 70 may be a rack and pinion mechanism. Specifically, as shown in fig. 3 to 7, the drive mechanism 70 includes a rack 73, a gear 72, and a motor 71. The rack 73 extends in the up-down direction and is fixed to the baffle member 30. The gear 72 is engaged with a rack 73. The motor 71 is mounted to the air duct 20 and is used for driving the gear 72 to rotate so as to make the rack 73 translate up and down, thereby driving the air guide member 30 to translate up and down. The motor 71 can be rotated in a forward and reverse direction to enable the diversion member 30 to reciprocate in an up and down direction. The motor 71 may be a stepper motor. Of course, a mounting portion is provided in the air duct 20 to be engaged with the air guide 30, so as to mount the air guide 30 and guide the air guide 30 to move only up and down. The detailed structure of the mounting portion is not described herein.
In some embodiments, the housing 10 may be further provided with other air supply ports to cooperate with the first air supply port 11 to realize multiple air supply modes. For example, as shown in fig. 1 to 3, two second air supply outlets 12 are formed on the casing 10, and are respectively located at two lateral sides of the casing 10. Correspondingly, the two lateral sides of the air duct 20 are respectively opened with a second air outlet 22 to match with the two second air supply outlets 12. The two second supply ports 12 may be positioned lower than the first supply port 11. For example, the first air blowing port 11 is located at an upper portion of the casing 10, and the two second air blowing ports 12 are located at a middle portion or a lower portion of the casing 10. The arrangement can lead the air sent out by each air supply outlet to be staggered in the vertical direction and the left-right direction, thus forming an effect of surrounding air supply, leading the air flow of the air supply to be more dispersed, and improving the refrigerating/heating speed and the comfort level of the air flow of the indoor unit of the vertical air conditioner.
As shown in fig. 1 to 3, each second air supply outlet 12 may be a vertical strip whose length direction is along the vertical direction, so as to facilitate air supply to the oblique lower side, to realize heating and blowing down, to accelerate heating speed, and to improve heating comfort. An air guide mechanism may be installed at each second air blowing opening 12, for example, as shown in fig. 1, an air guide plate 60 having an axis extending in a vertical direction may be installed at each second air blowing opening 12 so as to guide the air blowing direction in a rotating manner, and may also be used to open and close the second air blowing opening 12. In addition, the first air supply outlet 11, the first air outlet 21 and the air guide member 30 may be all oblong with the length direction vertically arranged as a whole. An oblong refers to a shape formed by two parallel spaced straight sides joined by two symmetrically disposed arcs (usually semicircles). In the present embodiment, the first air blowing port 11 is formed in an oblong shape, and the following three points are considered. On one hand, compared with a circular air supply outlet which is used conventionally, the overall shape of the oblong air supply outlet with the same air outlet area is more 'flat', and airflow aggregation is facilitated. On the other hand, because the oblong air supply outlet is vertically arranged in the length direction, compared with a round air supply outlet with the same air outlet area, the height (the distance from the highest point to the lowest point of the air supply outlet) of the oblong air supply outlet is higher, and the length of the blown air flow in the vertical direction is longer. The air flow with longer length is blown forward or blown upwards, and then the covered length (the size of the air flow landing area along the front-back direction) is longer after falling on the ground in front of the air conditioner due to gravity, and the space of the air flow coverage area is larger. For example, in one specific model, the air flow covers 2m after landing when the height of the air blowing opening is 20cm, and the air flow covers 3m after landing when the height of the air blowing opening is 25 cm. In a third aspect, compared with a traditional circular air supply outlet, the shape of the oblong air supply outlet is more matched with that of the shell 10 (the shell 10 is a long strip vertically arranged in the length direction), so that the oblong air supply outlet is more harmonious and attractive.
In some embodiments, as shown in fig. 4 and 5, the air duct 20 may be configured to make the upward angle of the airflow at the bottom section of the annular air outlet gap 25 greater than the downward angle of the airflow at the top section thereof, so that the airflow at the bottom section of the annular air outlet gap 25 drives the airflow at the remaining sections to flow upward and forward together. For the embodiment that the first air supply outlet 11, the first air outlet 21 and the flow guide member 30 are all oblong circles vertically arranged in the length direction as a whole, the bottom edge of the first air outlet 21 refers to the circular arc edge at the bottom of the first air outlet 21, the top edge refers to the circular arc edge at the top thereof, and the edges at two lateral sides refer to the straight edges at two lateral sides thereof. The bottom section, the top section and the two transverse side sections of the annular air outlet gap respectively correspond to the bottom arc edge, the top arc edge and the two transverse side straight edges of the first air outlet 21. The upward-blowing angle refers to an included angle between the airflow direction (shown by a hollow arrow in fig. 5) of the bottom section of the annular air-out gap 25 and the horizontal plane, and the downward-tilting angle refers to an included angle between the airflow direction of the top section of the annular air-out gap 25 and the horizontal plane (if the airflow is blown out horizontally, the downward-tilting angle is 0 °). Because the rising angle of the air flow rising part is larger than the declining angle of the sinking part, the air flow mixed by a plurality of air flows integrally rises and flows. In the refrigeration mode, the rising and flowing cold air can fully avoid the human body and scatter downwards after reaching the highest point, so that the shower type refrigeration experience is realized. Moreover, the air flow is blown upwards to be beneficial to improving the air supply distance.
For example, as shown in fig. 4 and 5, the inner wall 251 of the air duct 20 adjacent to the top edge and the two lateral side edges of the first air outlet 21 is inclined from back to front gradually toward the horizontal central axis (x axis) of the first air outlet 21, and the inner wall 252 adjacent to the bottom edge of the first air outlet 21 extends in the vertical direction, so that the upward angle of the air flow at the bottom of the annular air outlet gap 25 is maximized to 90 °, and the gap space at the bottom section of the annular air outlet gap 25 is larger. Also, the air inlet 23 may be positioned lower than the first air outlet 21 so that the air flow flows toward the guide member 30 from the bottom to the top. In this way, the bottom section of the annular air outlet gap 25 is located upstream of the air duct 20 than other sections, so that the air flow can flow into the bottom section of the annular air outlet gap 25 more smoothly.
Based on the above two designs, the bottom section of the annular air-out gap 25 has larger air volume and stronger wind power than the rest sections. The bottom powerful airflow has advantages in the processes of impact and polymerization with the airflow on the upper part of the annular air outlet gap 25 and the airflow on the two transverse sides, and the airflow is more powerfully driven to integrally lift and flow upwards and upwards together, so that a better lifting and air supply effect is realized.
As described above, the upward and downward blowing angles of the first blowing port 11 can be changed by vertically translating the guide member 30. For embodiments that cause the air stream to flow upward, the specific upward angle can be adjusted by translating the baffle 30 up and down. Alternatively, the flow guiding member 30 can be moved downward, so that the first air supply outlet 11 is changed from upward air supply to horizontal forward air supply or oblique downward air supply.
In some embodiments, as shown in FIG. 3, the duct 20 may be provided with a constriction 27 having a smaller flow cross-sectional area than the remaining sections. The neck section 27 is located on the upstream side of the baffle 30, for example, at a position adjacent to the first air outlet 21. The constriction 27 accelerates the air flow before it reaches the flow guide 30, so that the air flow impacts the flow guide 30 at a faster speed, and is thus more strongly guided by the flow guide 30 towards the inner wall of the air duct 20. In addition, as shown in fig. 5 and 7, a plurality of flow guiding ribs 26 extending along the airflow direction may be disposed on the inner wall of the air duct 20 to guide the airflow, and the structural strength of the air duct 20 may also be enhanced.
Fig. 7 is an exploded schematic view of the air chute 20.
In some embodiments, as shown in fig. 3-7, the wind tunnel 20 may include a front shell 201, a rear shell 202, and a drip tray 203. The rear side and the lower side of the front case 201 are opened, and the first air outlet 21 is opened on the front case 201. The front side and the lower side of the rear shell 202 are opened, and the rear shell 202 covers and buckles the rear side of the front shell 201 to form a structure with the lower side opened together. The drain pan 203 is covered and fastened to the lower sides of the front and rear cases 201 and 202 to close the open lower sides thereof. The air inlet 23 of the air duct 20 opens on the water pan 203. In the embodiment, the air duct 20 is divided into three parts, namely a front shell 201, a rear shell 202 and a water pan 203, so that the parts can be independently processed and manufactured conveniently, and the performance requirement can be better met.
As described above, in some embodiments, the indoor unit of the floor air conditioner may have the heat exchanger 40. As shown in fig. 3, the heat exchanger 40 may be mounted on a drip tray 203. The heat exchanger 40 may be a two-stage structure, in which two heat exchange sections are flat and connected at top ends thereof, and bottom ends of the two heat exchange sections are disposed on the water pan 203 and located at two sides of the air inlet 23 respectively. The inverted v-shaped structure of the heat exchanger 40 can make the heat exchange area large enough, and make the contact with the air flow flowing upwards from the air inlet 23 more sufficient, and the heat exchange efficiency is higher. The water pan 203 is used for carrying the heat exchanger 40 on one hand and receiving condensed water dropping from the surface of the heat exchanger 40 during air conditioning and refrigeration on the other hand.
The air duct 20 may be located at the middle upper portion of the housing 10, and an air inlet portion 13 may be formed at the lower portion of the housing 10, for example, the air inlet portion 13 shown in fig. 3 includes a plurality of air inlet holes opened at both lateral sides of the housing 10 and an air inlet grille arranged at the rear side of the housing 10. The blower 50 may be installed under the wind tunnel 20 with the outlet 51 of the volute thereof being connected to the air inlet 23 so as to blow the air flow entering the lower space of the casing 10 from the air inlet portion 13 toward the inside of the wind tunnel 20. The fan 50 may be a centrifugal fan as shown in fig. 3, or may be another type of fan.
In some embodiments, as shown in fig. 5, the outer surface of the baffle 30 includes an outer end surface 31, an outer peripheral surface 32, a wind-guiding surface 33, and an inner end surface 34. Wherein the outer end face 31 faces the first air outlet 21. The outer peripheral surface 32 extends from an edge of the outer end surface 31 in a direction away from the first air outlet 21. The annular air outlet gap 25 is mainly defined by the outer peripheral surface 32 and the inner wall of the air duct 20. The air guide surface 33 extends obliquely from the edge of the outer peripheral surface 32 in a direction away from the first air outlet 21 and toward the central axis (x-axis) of the first air outlet 21. That is, the air guide surface 33 extends gradually closer to the outer peripheral surface 32 in a direction toward the first air outlet 21. The air guide surface 33 is mainly used for guiding the air flow, so that the air flow flows to the inner wall of the air duct 20 more stably and smoothly, and the resistance loss in the air guide process is reduced. The inner end surface 34 is connected to the edge of the wind guide surface 33, and the rack 73 is formed on the inner end surface 34. The outer end surface 31, the outer circumferential surface 32, the air guiding surface 33 and the inner end surface 34 may together form the entire outer surface of the air guide 30.
Fig. 8 is an exploded view of the baffle 30.
In some embodiments, as shown in FIG. 8, the baffle 30 may be hollow to provide a lighter weight, to facilitate a more secure mounting to the duct 20, and to facilitate the shaping of its complex external surface shape. Specifically, the air guide member 30 may include a first air guide shell 301 and a second air guide shell 302 which are connected in a snap-fit manner, an outer surface of the first air guide shell 301 forms the outer end surface 31 and the outer peripheral surface 32, and an outer surface of the second air guide shell 302 forms the outer peripheral surface 32, the air guide surface 33 and the inner end surface 34.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (7)
1. An indoor unit of a floor type air conditioner, comprising:
a housing having a first air supply port at a front side thereof;
the air duct is arranged in the shell, is provided with an air inlet and a first air outlet facing the first air supply outlet and is used for guiding the airflow in the shell to the first air supply outlet, and the inner wall of the air duct close to the first air outlet is in a tapered shape with a gradually-reduced overflowing section along the airflow direction;
the flow guide piece is arranged in the air duct in a vertically-moving mode, an annular air outlet gap is limited by the flow guide piece and the tapered part of the flow guide piece, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually converged towards the center of the airflow under the guidance of the inner wall of the air duct and sequentially flows out of the first air outlet and the first air supply outlet to form a converged air outlet effect; and
the driving mechanism is used for driving the flow guide piece to move up and down so as to adjust the sizes of the air outlet sections of the top section and the bottom section of the annular air outlet gap, and therefore the air supply angle of the first air supply opening is changed;
the position of the air inlet is lower than that of the first air outlet, so that the air flow flows to the flow guide piece from bottom to top;
the inner walls of the air duct close to the top edge and the two lateral side edges of the first air outlet are gradually inclined towards the horizontal central axis of the first air outlet from back to front, and the inner walls close to the bottom edge of the first air outlet extend along the vertical direction, so that the rising angle of the airflow at the bottom section of the annular air outlet gap is larger than the falling angle of the airflow at the top section of the annular air outlet gap, and the airflow at the bottom section of the annular air outlet gap drives the airflow at the other sections to flow upwards and forwards together.
2. The indoor unit of a floor air conditioner according to claim 1, wherein the driving mechanism includes:
the rack extends along the up-down direction and is fixed on the flow guide piece;
a gear engaged with the rack; and
and the motor is arranged in the air duct and used for driving the gear to rotate so as to enable the rack to drive the flow guide piece to move up and down.
3. The indoor unit of an upright air conditioner according to claim 2, wherein the outer surface of the guide member includes:
an outer end face facing the first air outlet;
the outer peripheral surface extends out from the edge of the outer end surface along the direction far away from the first air outlet;
the air guide surface extends obliquely from the edge of the outer peripheral surface along the direction far away from the first air outlet and towards the central axis direction of the first air outlet; and
the inner end face is connected with the edge of the air guide face, and the rack is formed on the inner end face.
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 shell is also provided with two second air supply outlets which are respectively positioned at two transverse sides of the shell and are lower than the first air supply outlet; and is
And second air outlets are respectively formed in the two transverse sides of the air duct so as to be respectively matched with the two second air supply outlets.
5. The indoor unit of a floor air conditioner according to claim 4, wherein the indoor unit of a floor air conditioner includes
The first air supply outlet, the first air outlet and the flow guide piece are all oblong circles which are vertically arranged in the length direction on the whole; and is
Each second air supply outlet is a long strip vertically arranged in the length direction.
6. The indoor unit of a floor type air conditioner according to claim 1, wherein the indoor unit of a floor type air conditioner includes
The air duct is provided with a necking section with smaller flow cross-sectional area than the rest sections, and the necking section is positioned on the upstream side of the flow guide piece so as to accelerate the air flow before the air flow flows to the flow guide piece.
7. The indoor unit of a floor air conditioner according to claim 1, further comprising:
the heat exchanger is arranged in the air duct and is used for exchanging heat with air flow flowing through the air duct; and
and the fan is arranged in the shell and used for promoting indoor air to enter the shell and the air channel.
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| CN202010686991.9A CN111912010B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN202010686991.9A CN111912010B (en) | 2020-07-16 | 2020-07-16 | Vertical air conditioner indoor unit |
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| CN111912010B true CN111912010B (en) | 2022-03-22 |
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| CN114763921A (en) * | 2021-01-15 | 2022-07-19 | 青岛海尔空调器有限总公司 | Vertical air conditioner indoor unit |
| CN114963329A (en) * | 2021-02-19 | 2022-08-30 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN114963305A (en) * | 2021-02-25 | 2022-08-30 | 青岛海尔空调器有限总公司 | Vertical air conditioner indoor unit |
| CN115682150A (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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| CN104807158A (en) * | 2014-01-27 | 2015-07-29 | 青岛海尔空调器有限总公司 | Air supplying device for air conditioner and indoor unit of air conditioner |
| CN210373769U (en) * | 2019-07-29 | 2020-04-21 | 广东美的制冷设备有限公司 | Vortex ring generating device, air conditioner indoor unit and air conditioner |
| CN210601907U (en) * | 2019-07-29 | 2020-05-22 | 广东美的制冷设备有限公司 | Air conditioner |
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