CN213019962U - Vertical air conditioner indoor unit - Google Patents

Vertical air conditioner indoor unit Download PDF

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Publication number
CN213019962U
CN213019962U CN202021404203.4U CN202021404203U CN213019962U CN 213019962 U CN213019962 U CN 213019962U CN 202021404203 U CN202021404203 U CN 202021404203U CN 213019962 U CN213019962 U CN 213019962U
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China
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air
arc
shell
shaped
air supply
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CN202021404203.4U
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Chinese (zh)
Inventor
尹晓英
王永涛
李英舒
张蕾
袁俊军
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
Haier Zhijia Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Zhijia Co Ltd
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Priority to CN202021404203.4U priority Critical patent/CN213019962U/en
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Abstract

The utility model provides a vertical air conditioner indoor unit, include: the air supply device comprises a shell, an air supply opening is formed in the front side of the shell, the air supply opening is in an oblong shape with the length direction parallel to the vertical direction, the inner wall of the shell close to the air supply opening is in a tapered shape with the overflowing section gradually reduced along the airflow direction, and the length of the air supply opening at least accounts for one half of the length of the shell; and the flow guide piece is arranged at the rear side of the air supply opening, an annular air outlet gap is limited by the flow guide piece and the tapered part of the shell, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually blown out of the air supply opening in a converging manner towards the airflow center direction under the guidance of the inner wall of the shell. The utility model discloses a machine wind-force is more powerful in the vertical air conditioning, and the air supply distance is farther and the air-out area is big, has realized the air-out of big amount of wind.

Description

Vertical air conditioner indoor unit
Technical Field
The utility model relates to an air conditioning technology field, in particular to 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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an overcome above-mentioned problem or solve the vertical air conditioner indoor set of above-mentioned problem at least partially to realize better remote air supply and powerful air supply effect.
The utility model discloses a further purpose provides the vertical air conditioner indoor set that can realize the air-out of big amount of wind.
Particularly, the utility model provides a vertical air conditioner indoor unit, include:
the front side of the shell is provided with an air supply outlet, the inner wall of the shell close to the air supply outlet is in a tapered shape of which the flow cross section is gradually reduced along the airflow direction, and the length of the air supply outlet at least accounts for one half of the length of the shell; and
and the flow guide piece is arranged at the rear side of the air supply outlet, an annular air outlet gap is limited by the flow guide piece and the tapered part of the shell, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually blown out of the air supply outlet in a converging manner towards the airflow center direction under the guidance of the inner wall of the shell.
Optionally, the flow guide piece comprises a front end face, and two first flow guide surfaces and two second flow guide surfaces which respectively extend backwards from the upper side and the lower side of the front end face and the two lateral sides of the front end face; wherein
Each first flow guide surface is gradually far away from the central horizontal symmetrical surface of the flow guide piece in the process of extending from back to front and comprises a concave first arc-shaped section and a convex second arc-shaped section which are sequentially connected;
each second flow guide surface gradually keeps away from the central longitudinal vertical symmetrical surface of the flow guide piece in the process of extending from back to front, and comprises a concave third arc section, a convex fourth arc section and a convex fifth arc section which are sequentially connected.
Optionally, the air supply outlet is oblong with the length direction parallel to the vertical direction;
the front-view outer contour of the front end surface is in a long circle shape vertically arranged in the length direction;
the length of the air supply opening is half to four fifths of the length of the shell.
Optionally, the radius of the second arc segment is larger than the radius of the first arc segment;
the radius of the third arc-shaped section is smaller than that of the fourth arc-shaped section and larger than that of the fifth arc-shaped section;
the ratio of the narrowest width of the annular air outlet gap to the width of the flow guide piece is less than 0.6.
Optionally, the ratio of the radius of the second arcuate segment to the radius of the first arcuate segment is between 1.5 and 2;
the ratio of the radii of the third arc-shaped section and the fifth arc-shaped section is between 1 and 1.5;
the ratio of the radii of the fourth arc segment to the fifth arc segment is between 8 and 12.
Optionally, in a cross section obtained by cutting the flow guide piece by a vertical surface, the outer contour of the front end surface sequentially comprises an upper convex arc-shaped section, a middle vertical section and a lower convex arc-shaped section from top to bottom;
in a cross section obtained by cutting the flow guide part by a horizontal plane, the outer contour of the front end surface comprises a sixth arc-shaped section and a seventh arc-shaped section which are connected and are convex outwards.
Optionally, the indoor unit of an upright air conditioner further includes:
the heat exchanger is arranged in the shell and used for exchanging heat of the airflow entering the shell; and
and the fan is arranged in the shell and used for promoting indoor air to enter the shell to exchange heat with the heat exchanger.
Optionally, the rear side of the shell is provided with an air inlet corresponding to the height of the air supply outlet;
the heat exchanger is plate-shaped and is vertically arranged on the front side of the air inlet;
the fan includes two at least axial fans, and two at least axial fans set up in the front side of heat exchanger along longitudinal interval.
Optionally, the rear side and/or the left and right sides of the shell are/is provided with air inlets corresponding to the height of the air supply outlet;
the cross section of the heat exchanger is U-shaped, the heat exchanger is provided with a rear wall section, a first side wall section and a second side wall section, the first side wall section and the second side wall section respectively extend forwards from the left side to the right side of the rear wall section, the heat exchanger is vertically arranged in the shell, and one sides of the first side wall section and the second side wall section face forwards;
the fan is a cross-flow fan and is vertically arranged in the shell and positioned in a space defined by the rear wall section, the first side wall section and the second side wall section.
Optionally, the indoor unit of an upright air conditioner further includes: the front volute tongue and the rear volute tongue are respectively fixed on the edges of the first side wall section and the second side wall section, and jointly define an air outlet channel of the cross-flow fan.
The utility model discloses an among the vertical air conditioning indoor set, the inner wall that the casing closes on its air supply opening department is the convergent form, makes and overflows the cross-section and diminishes along the air current direction gradually. And the flow guide piece inside the shell and the tapered part of the inner wall of the shell define an annular air outlet gap. Therefore, in the process that the air flow (heat exchange air flow, fresh air flow and the like) entering the shell from the air inlet flows to the air supply outlet, the air flow is blown to the inner wall of the shell under the guidance of the flow guide piece 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 shell to form a convergence effect, so that the wind power is stronger, the air supply distance is farther, and the requirements of the indoor unit of the vertical air conditioner on long-distance air supply and strong air supply are met. And simultaneously, the utility model discloses an in the vertical air conditioning indoor set through prescribing a limit to the half of satisfying the length of casing at least with the length of supply-air outlet for the air-out area of this vertical air conditioning indoor set's supply-air outlet is big, has realized the air-out of big amount of wind.
The utility model discloses an among the vertical air conditioner indoor set, the water conservancy diversion spare has not only prescribed a limit to annular air-out clearance with shells inner wall, reaches the effect that promotes the wind speed, also can lead annular air-out clearance with the air current simultaneously just, perhaps forces the air current to flow towards annular air-out clearance to force the air current to accept the polymerization guide of convergent form inner wall, form final polymerization air-out effect. The utility model discloses only through improving the casing shape and add a water conservancy diversion spare and just realized very good polymerization air supply effect, its structure is very simple, and the cost is lower moreover, easily realizes the volume production and promotes, thinks about very ingeniously.
Further, the utility model discloses optimized design has been carried out to the shape of water conservancy diversion spare, especially makes its two first water conservancy diversion faces and second water conservancy diversion face include a plurality of segmental arcs separately to optimize the big or small relation of each segmental arc, so that the air current is being guided and leave the flow resistance of the in-process of first water conservancy diversion face and second water conservancy diversion face by first water conservancy diversion face and second water conservancy diversion face littleer, make its energy loss and noise littleer.
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 present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a floor air conditioner indoor unit according to an embodiment of the present invention.
Fig. 2 is a sectional view of the indoor unit of an upright air conditioner shown in fig. 1.
Fig. 3 is another sectional view of the indoor unit of an upright air conditioner shown in fig. 1.
Fig. 4 is a schematic structural view of a floor air conditioner indoor unit according to another embodiment of the present invention.
Fig. 5 is a sectional view of the indoor unit of an upright air conditioner shown in fig. 4.
Fig. 6 is another sectional view of the indoor unit of an upright air conditioner shown in fig. 4.
Fig. 7 is a cross-sectional view of the baffle taken through a central horizontal plane of symmetry.
Fig. 8 is a sectional view of the baffle taken through a central longitudinal vertical plane of symmetry.
Detailed Description
An embodiment of the utility model provides a vertical air conditioner indoor set for split type air conditioner's indoor portion for adjust indoor air, for example refrigerate/heat, dehumidify, introduce new trend and so on. For example, the indoor unit of the floor air conditioner may be an indoor unit of an air conditioner that performs cooling/heating by a vapor compression refrigeration cycle.
Fig. 1 is a schematic structural view of a floor air conditioner indoor unit according to an embodiment of the present invention. Fig. 2 is a sectional view of the indoor unit of an upright air conditioner shown in fig. 1. Fig. 3 is another sectional view of the indoor unit of an upright air conditioner shown in fig. 1. Fig. 4 is a schematic structural view of a floor air conditioner indoor unit according to another embodiment of the present invention. Fig. 5 is a sectional view of the indoor unit of an upright air conditioner shown in fig. 4. Fig. 6 is another sectional view of the indoor unit of an upright air conditioner shown in fig. 4. Fig. 7 is a sectional view of the baffle 30 cut along a central horizontal plane of symmetry. Fig. 8 is a sectional view of the baffle 30 cut through a central longitudinal vertical plane of symmetry.
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 casing 10 and a baffle 30. An air supply outlet 11 is opened on the front side of the casing 10. 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 housing 10 may further have an air inlet 13 for introducing indoor air. The length of the air blowing port 11 is at least half of the length of the casing 10. The inner wall of the casing 10 near the air supply outlet 11 is tapered such that the flow cross section thereof gradually decreases in the airflow direction. In other words, the flow cross section of the casing 10 becomes gradually smaller in the air flow direction near the blower port 11. The deflector 30 is disposed behind the supply opening 11 and defines an annular outlet gap 15 with the aforementioned tapered portion of the casing 10. The guiding element 30 is used to guide the airflow to the annular air outlet gap 15, so that the airflow is guided by the inner wall of the casing 10, gradually converges toward the airflow center, and flows out of the air outlet 11 (the airflow direction is indicated by arrows in fig. 2 and 5). The utility model discloses among the vertical air conditioner indoor set, the inner wall that casing 10 closes on its supply-air outlet 11 department is the convergent form, makes and overflows the cross-section and diminishes along the air current direction gradually. Furthermore, the air guiding element 30 inside the casing 10 and the tapered portion of the inner wall of the casing 10 define an annular air outlet gap 15. In this way, the air flow (heat exchange air flow, fresh air flow, etc.) entering the casing 10 from the air inlet 13 flows to the air supply outlet 11, and is blown to the inner wall of the casing 10 by the guiding member 30, 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 tapered inner wall of the shell 10 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. And simultaneously, the utility model discloses inject the length through with supply-air outlet 11 among the vertical air conditioning indoor set for satisfying the half of the length that occupies casing 10 at least, the air-out area of supply-air outlet 11 is big for this vertical air conditioning indoor set has realized the air-out of the big amount of wind.
The utility model discloses among the vertical air conditioning indoor set, water conservancy diversion piece 30 has not only injectd annular air-out clearance 15 with the casing 10 inner wall, reaches the effect that promotes the wind speed, also can lead annular air-out clearance 15 with the air current simultaneously just, perhaps forces the air current to flow towards annular air-out clearance 15 so that force the air current to accept the polymerization guide of convergent form inner wall, form final polymerization air-out effect. The utility model discloses only through improving the casing 10 shape and add a water conservancy diversion piece 30 and just realized very good polymerization air supply effect, its structure is very simple, and the cost is lower moreover, easily realizes the volume production and promotes, thinks about very ingeniously.
The guide member 30 includes a front end surface 31, and two first guide surfaces 32, 33 and two second guide surfaces 34, 35 extending rearward from upper and lower sides and lateral sides of the front end surface 31, respectively. Referring now primarily to fig. 7 and 8, a preferred construction of the baffle 30 will be described in detail.
In some embodiments, the supply opening 11 is oblong with a length direction parallel to the vertical direction; the front-view outer contour of the front end face 31 is an oblong vertically arranged in the length direction to match the shape of the air supply outlet 11; the length of the air supply opening 11 is half to four fifths of the length of the casing 10. The air supply opening 11 is an oblong with the length direction parallel to the vertical direction, namely, the projection of the outer contour of the air supply opening 11 on a horizontal vertical plane is an oblong with a straight edge extending along the vertical direction. An oblong refers to a shape formed by two parallel spaced straight sides joined by two symmetrically disposed arcs (usually semicircles). It can be seen that the annular outlet gap 15 has a substantially oblong front view. In the embodiment, the air supply outlet 11 is in an oblong shape, 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 the air flow polymerization is more facilitated; on the other hand, compared with the traditional circular air supply opening, the shape of the oblong air supply opening 11 is more matched with that of the shell 10 (the shell 10 is in a long strip shape with the length direction vertically arranged), so that the air supply opening is more harmonious and attractive. The length of the air supply opening 11 is designed to be one half to four fifths of the length of the shell 10, so that the air outlet area and the air outlet volume can be increased as much as possible, and the stability of the shell 10 can be guaranteed.
As shown in fig. 2, 5 and 8, each first guiding surface 32, 33 gradually gets away from the central horizontal symmetry plane (plane B) of the guiding element 30 in the process of extending from back to front, and includes a first concave arc section (gh section) and a second convex arc section (hi section) which are connected in sequence. As shown in fig. 3, 6 and 7, each second guiding surface 34, 35 gradually gets away from the central longitudinal vertical symmetry plane (i.e. the a plane, longitudinal refers to the front-back direction) of the guiding member 30 in the process of extending from back to front, and includes a third concave arc section (ab section), a fourth convex arc section (bc section) and a fifth convex arc section (cd section) which are connected in sequence. The circle centers of the concave arc sections are all positioned at the outer side of the outer contour of the flow guide part 30, and the circle centers of the convex arc sections are all positioned at the inner side of the outer contour of the flow guide part 30. The joints of the arc sections are in smooth transition. Furthermore, it is also possible to make the two first flow guiding surfaces 32, 33 symmetrical with respect to the central horizontal symmetry plane (plane B) and the two second flow guiding surfaces 34, 35 symmetrical with respect to the central longitudinal vertical symmetry plane (plane a).
When the airflow flows to the first flow guiding surfaces 32 and 33, the airflow firstly flows through the first arc-shaped section (gh section), and the first arc-shaped section (gh section) is designed to be concave, so that the flow velocity of the airflow is accelerated, and the airflow rapidly rushes to the inner wall of the shell 10 away from the central axis of the air supply opening 11. The second arc-shaped section (hi section) is convex outward, so that the second arc-shaped section is closer to the direction of the tapered inner wall of the shell 10, and the resistance of the second arc-shaped section (hi section) is smaller when the airflow is guided by the tapered inner wall of the shell 10 to turn towards the central axis of the air supply opening 11. Similarly, when the airflow flows to the second flow guiding surfaces 34 and 35, the airflow first flows through the third arc-shaped section (ab section), and the third arc-shaped section (ab section) is designed to be concave, so that the flow velocity of the airflow is accelerated, and the airflow rapidly rushes to the inner wall of the casing 10 away from the central axis of the air supply opening 11. The fourth arc-shaped section (bc section) and the fifth arc-shaped section (cd section) are outward convex to be closer to the trend of the gradually-reduced inner wall of the shell 10, so that the air flow is guided by the gradually-reduced inner wall of the shell 10 to turn towards the central axis close to the air supply opening 11 in the turning process, and the resistance of the fourth arc-shaped section (bc section) and the fifth arc-shaped section (cd section) is smaller. Therefore, the above-mentioned embodiment makes the energy loss and noise thereof smaller by making the two first flow guiding surfaces 32, 33 and second flow guiding surfaces 34, 35 each include a plurality of arc-shaped sections, and optimizing the magnitude relationship of the respective arc-shaped degrees so that the flow resistance of the air flow in the course of being guided by the first flow guiding surfaces 32, 33 and second flow guiding surfaces 34, 35 and leaving the first flow guiding surfaces 32, 33 and second flow guiding surfaces 34, 35 is smaller.
Further, the embodiment of the utility model provides a size relation through to each radian optimizes to strengthen above-mentioned effect. For example, the radius of the second arcuate segment (section hi) may be made larger than the radius of the first arcuate segment (section gh). In particular, the ratio of the radii of the second arc-shaped section (hi) to the first arc-shaped section (gh) can be between 1.5 and 2, preferably between 1.6 and 1.8. For example, the radius of the third arcuate segment (ab segment) may be made smaller than the fourth arcuate segment (bc segment) and larger than the fifth arcuate segment (cd segment). In particular, the ratio of the radii of the third arc segment (ab segment) to the fifth arc segment (cd segment) can be between 1 and 1.5, preferably between 1.1 and 1.4, and the ratio of the radii of the fourth arc segment (bc segment) to the fifth arc segment (cd segment) can be between 8 and 12, preferably between 9 and 11.
As shown in fig. 3, the narrowest width D of the annular outlet gap 15 can also be set1Width W of the flow guide member 301The ratio of (A) to (B) is less than 0.6, preferably less than 0.5. The inventor proves that D is obtained by theoretical analysis and experiments1And W1When the ratio of the air flow to the air flow is less than 0.5, the air flow converging effect can be ensured, and if the ratio is not within the range, the converging effect is obviously reduced.
In some embodiments, the front end surface 31 may be specially designed to include a plurality of convex arc sections, so that the front end surface 31 can play a certain role of converging air flow depending on its shape, thereby improving the collective air supply effect of the air supply opening 11. Specifically, as shown in fig. 8, in a cross section obtained by cutting the flow guide 30 at a longitudinal vertical surface (e.g., a plane a), the outer contour of the front end surface 31 includes, from top to bottom, an upper arc-shaped section (ik section) that is convex outward, a middle vertical section (kn section), and a lower arc-shaped section (np section) that is convex outward in this order. Alternatively, as shown in fig. 7, in a cross section (e.g., the cross section shown in fig. 7) obtained by cutting the flow guide 30 in a horizontal plane (e.g., the plane B), the outer contour of the front end surface 31 includes a sixth arc segment (de segment) and a seventh arc segment (ej segment) which are convex outwards and are connected with each other. Preferably, the radii of the sixth arc-shaped segment (de segment) and the seventh arc-shaped segment (ej segment) are the same, and the centers of the two arc-shaped segments are further overlapped to form an integral arc-shaped segment.
As shown in fig. 6-8, the baffle 30 also includes a rear face 36. The rear end face 36 may be a convex arc with its axis extending vertically to achieve a smooth transition with its adjacent face.
The baffle 30 may be fixedly or movably connected to the housing 10. In some embodiments, the upright air conditioning indoor unit further includes a driving mechanism (not shown). The driving mechanism is mounted on the housing 10 and used for supporting the diversion member 30 and driving the diversion member 30 to move back and forth so as to open and close the air supply outlet 11 or adjust the air supply area of the annular air outlet gap 15, so that the air output, 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, when the air guiding member 30 is moved forward, the distance between the air guiding member and the inner wall of the casing 10 is reduced, the air outlet amount of the annular air outlet gap 15 is reduced, the air speed is increased, and the air supply distance is increased. On the contrary, when the air guiding member 30 is moved backward, the air outlet amount of the annular air outlet gap 15 will be increased, the air speed will be decreased, and the air supply distance will be shortened. The width W of the flow guide member 30 can be adjusted1Width W of the air blowing port 112Equal as in fig. 3. The height of the guide member 30 is made equal to the height of the supply port 11 so that the guide member 30 can just close the supply port 11.
The vertical air conditioner indoor unit further comprises: a heat exchanger 40 and a fan. A heat exchanger 40 is disposed within the housing 10 for exchanging heat with the airflow entering the housing 10. The blower is disposed in the casing 10 for forcing indoor air into the casing 10 to exchange heat with the heat exchanger 40.
As shown in fig. 1 to 3, in some embodiments, the rear side of the housing 10 is opened with an air inlet 13 corresponding to the height of the air supply outlet 11. The heat exchanger 40 is plate-shaped and is vertically disposed at a front side of the air inlet 13. The fan includes at least two axial fans 50, and the at least two axial fans 50 are disposed at a longitudinal interval in front of the heat exchanger 40. Three axial fans 50 are provided at intervals in the vertical air conditioner indoor unit shown in fig. 2 in the longitudinal direction. Upper and lower partitions are also provided at upper and lower ends of the heat exchanger 40 to limit the forward movement of the air flow entering the housing 10. The axial fan 50 may be fixed in the housing 10 by a mounting bracket.
As shown in fig. 4 to 6, in some embodiments, the rear side and the left and right sides of the housing 10 are opened with air inlets 13 corresponding to the height of the air supply outlet 11. The heat exchanger 40 has a U-shaped cross section, and has a rear wall section 41 and first and second side wall sections 42 and 43 extending forward from the rear wall section 41 right and left, respectively, and the heat exchanger 40 is vertically disposed in the casing 10 with the first and second side wall sections 42 and 43 facing forward. The fan is a crossflow fan 60 disposed vertically within the casing 10 and within the space defined by the rear wall section 41, the first side wall section 42 and the second side wall section 43. With continued reference to fig. 6, the indoor unit of a floor air conditioner further includes: and the front volute tongue 61 and the rear volute tongue 62 are respectively fixed on the edges of the first side wall section 42 and the second side wall section 43, and the front volute tongue 61 and the rear volute tongue 62 jointly define an air outlet channel of the cross flow fan 60. By arranging the axial flow fan 50 or the cross flow fan 60, compared with a centrifugal fan, the size of the fan is smaller, so that the size of the whole shell 10 can be selected more selectively, and the overall appearance of the vertical air conditioner indoor unit is improved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present 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 front side of the shell is provided with an air supply outlet, the inner wall of the shell close to the air supply outlet is in a tapered shape of which the flow cross section is gradually reduced along the airflow direction, and the length of the air supply outlet at least accounts for one half of the length of the shell; and
and the flow guide piece is arranged at the rear side of the air supply opening, an annular air outlet gap is defined by the flow guide piece and the tapered part of the shell, and the flow guide piece is used for guiding airflow to the annular air outlet gap so that the airflow is gradually blown out of the air supply opening in a converging manner towards the airflow center direction under the guidance of the inner wall of the shell.
2. The indoor unit of a floor air conditioner according to claim 1,
the flow guide piece comprises a front end face, and two first flow guide surfaces and two second flow guide surfaces which respectively extend backwards from the upper side and the lower side of the front end face and the two transverse side edges of the front end face; wherein
Each first flow guide surface is gradually far away from the central horizontal symmetrical surface of the flow guide piece in the process of extending from back to front and comprises a concave first arc-shaped section and a convex second arc-shaped section which are sequentially connected;
each second flow guide surface gradually keeps away from the central longitudinal vertical symmetrical surface of the flow guide piece in the process of extending from back to front, and comprises a concave third arc section, a convex fourth arc section and a convex fifth arc section which are sequentially connected.
3. The indoor unit of a floor air conditioner according to claim 2,
the air supply outlet is in an oblong shape with the length direction parallel to the vertical direction;
the front-view outer contour of the front end face is in a long circle shape vertically arranged in the length direction;
the length of the air supply opening is half to four fifths of the length of the shell.
4. The indoor unit of a floor air conditioner according to claim 2,
the radius of the second arc-shaped section is larger than that of the first arc-shaped section;
the radius of the third arc-shaped section is smaller than that of the fourth arc-shaped section and larger than that of the fifth arc-shaped section;
the ratio of the narrowest width of the annular air outlet gap to the width of the flow guide piece is less than 0.6.
5. The indoor unit of a floor air conditioner according to claim 2,
the ratio of the radii of the second arcuate segment to the first arcuate segment is between 1.5 and 2;
the ratio of the radii of the third arcuate segment to the fifth arcuate segment is between 1 and 1.5;
the ratio of the radii of the fourth arc segment to the fifth arc segment is between 8 and 12.
6. The indoor unit of a floor air conditioner according to claim 2,
in a cross section obtained by cutting the flow guide part by a vertical surface, the outer contour of the front end surface sequentially comprises an upper arc-shaped section, a middle vertical section and a lower arc-shaped section, wherein the upper arc-shaped section is convex outwards;
in a cross section obtained by cutting the flow guide part with a horizontal plane, the outer contour of the front end surface comprises a sixth arc-shaped section and a seventh arc-shaped section which are connected and convex outwards.
7. The indoor unit of a floor air conditioner according to claim 1, further comprising:
the heat exchanger is arranged in the shell and used for exchanging heat of the airflow entering the shell; and
and the fan is arranged in the shell and used for promoting indoor air to enter the shell to exchange heat with the heat exchanger.
8. The indoor unit of a floor air conditioner according to claim 7,
the rear side of the shell is provided with an air inlet corresponding to the height of the air supply outlet;
the heat exchanger is plate-shaped and is vertically arranged on the front side of the air inlet;
the fan comprises at least two axial flow fans which are arranged on the front side of the heat exchanger at intervals along the longitudinal direction.
9. The indoor unit of a floor air conditioner according to claim 7,
the rear side and/or the left side and the right side of the shell are/is provided with air inlets corresponding to the height of the air supply outlet;
the cross section of the heat exchanger is U-shaped, the heat exchanger is provided with a rear wall section and a first side wall section and a second side wall section which respectively extend forwards from the left side to the right side of the rear wall section, the heat exchanger is vertically arranged in the shell, and one sides of the first side wall section and the second side wall section face forwards;
the fan is a cross-flow fan and is vertically arranged in the shell and positioned in a space defined by the rear wall section, the first side wall section and the second side wall section.
10. The indoor unit of a floor air conditioner according to claim 9, further comprising:
the front volute tongue and the rear volute tongue are respectively fixed on the edges of the first side wall section and the second side wall section, and the front volute tongue and the rear volute tongue jointly define an air outlet channel of the cross flow fan.
CN202021404203.4U 2020-07-16 2020-07-16 Vertical air conditioner indoor unit Active CN213019962U (en)

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CN213019962U true CN213019962U (en) 2021-04-20

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