CN114543168A

CN114543168A - Vertical air conditioner indoor unit

Info

Publication number: CN114543168A
Application number: CN202011349098.3A
Authority: CN
Inventors: 李英舒; 田志强; 闫宝升; 王永涛
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2022-05-27
Anticipated expiration: 2040-11-26
Also published as: WO2022111212A1; CN114543168B

Abstract

The invention provides a vertical air conditioner indoor unit, comprising: a housing; an air duct; the baffle plate surrounds the partial area of the peripheral side of the flow guide part and is provided with an outer convex inner wall surface which is gradually inclined towards the horizontal central axis from back to front; wherein the baffle is configured to: the baffle plate is controlled to move forwards so that a second gap is defined between the baffle plate and the flow guide piece, and the flow guide piece is used for guiding partial airflow to the second gap, enabling the airflow to gradually converge towards the airflow center direction under the guidance of the inner wall surface of the baffle plate and the flow guide piece and enabling the airflow to sequentially flow out of the air outlet and the air supply outlet. The vertical air conditioner indoor unit has strong wind power, longer air supply distance, no need of improving the shape of an air duct and ingenious conception.

Description

Vertical air conditioner indoor unit

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 provide the vertical air conditioner indoor unit capable of supplying air directionally.

In particular, the present invention provides a vertical air conditioner indoor unit comprising:

a casing having an air supply outlet on the front side;

the air duct is arranged in the shell and is provided with an air inlet and an air outlet facing the air supply outlet;

the flow guide piece is arranged in the air duct and a first gap is defined between the flow guide piece and the inner wall of the air duct close to the air outlet; and

the baffle is arranged on the front side of the flow guide piece, surrounds a partial area of the peripheral side of the flow guide piece and is provided with an outer convex inner wall surface which is gradually inclined towards the horizontal central axis from back to front; wherein the baffle is configured to: the baffle plate is controlled to move forwards so that a second gap is defined between the baffle plate and the flow guide piece, and the flow guide piece is used for guiding partial airflow to the second gap, enabling the airflow to gradually converge towards the airflow center direction under the guidance of the inner wall surface of the baffle plate and the flow guide piece and enabling the airflow to sequentially flow out of the air outlet and the air supply outlet.

Optionally, the inner wall of the air duct adjacent to the air outlet is in a tapered shape with a gradually decreasing flow cross section along the airflow direction, and the flow guide member and the tapered portion of the air duct define a first gap, so that when the baffle moves forward to define a second gap between the baffle and the flow guide member, the flow guide member guides a part of the airflow to the second gap and guides the other part of the airflow to the first gap, and the airflow is gradually converged towards the airflow center direction under the guidance of the inner wall of the air duct and the flow guide member and sequentially flows out of the air outlet and the air supply outlet.

Optionally, the baffle is further configured to: the baffle plate is controlled to move backwards so that the inner wall surface of the baffle plate is attached to the flow guide piece, and the outer wall surface of the baffle plate is attached to the inner wall of the air duct so as to close the first gap corresponding to the baffle plate, so that air is not exhausted from the closed part.

Optionally, the indoor unit of an upright air conditioner further includes: the first driving mechanism comprises a rack, a first gear and a first motor; the rack extends along the front-back direction and is fixed with the baffle, the first gear is meshed with the rack, and the first gear is driven by the first motor to rotate to drive the rack to move back and forth so as to drive the baffle to move back and forth.

Optionally, the baffle is further configured to: controlled rotation in the vertical plane to adjust the relative position of the shutters.

Optionally, the indoor unit of an upright air conditioner further includes: the second driving mechanism comprises a gear ring, a second gear and a second motor; the ring gear sets up and is fixed with the baffle along the circumference a week of water conservancy diversion spare, and the second gear meshes with the ring gear, and the second gear is rotated by the drive of second motor and is driven the ring gear and rotate and then drive the baffle and rotate at vertical face.

Optionally, the outer contour of the flow guide part is formed by rotating the flow guide line around the horizontal central axis for one circle, the flow guide line comprises a first arc-shaped section, a second arc-shaped section, a third straight-line 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 and the second arc-shaped section are gradually far away from the horizontal central axis from the back to the front, and the end 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 to the second arcuate segment is between 3.8 and 4.3;

the ratio of the radius of the fifth arc-shaped section to the radius of the first arc-shaped section is between 2.5 and 3.0;

the ratio of the radii of the fifth arc segment to the fourth arc segment is between 10.0 and 18.0.

Optionally, the air outlet is a circular port;

the vertical plane projection of the front view of the flow guide piece is circular, and the diameter of the largest circle in the projection of the flow guide piece is more than or equal to the diameter of the air outlet;

the vertical plane projection of the front view of the baffle is a circular ring with a gap, and the diameter of the innermost ring in the projection of the baffle is less than or equal to that of the air outlet.

Optionally, the ratio of the linear distance between the start of the first arc segment and the end of the fifth arc segment to the diameter of the largest circle in the projection of the baffle is between 0.48 and 0.53.

In the indoor unit of the floor air conditioner, the baffle is arranged at the front side of the flow guide member, the baffle is configured to surround the partial area of the peripheral side of the flow guide member and is provided with the convex inner wall surface which gradually inclines towards the horizontal central axis from back to front, so that when the baffle moves forwards, a second gap is defined between the baffle and the flow guide member. In the process that air flow (heat exchange air flow, fresh air flow and the like) entering the air channel from the air inlet flows to the air outlet, the air flow is guided by the flow guide piece to blow towards the inner wall surface of the baffle plate to flow into the second gap. Because the air-out cross-section in second clearance is littleer for its air-out speed is higher. Meanwhile, the high-speed airflow is gradually converged towards the center of the airflow in the outward flowing process under the guidance of the inner wall surface of the baffle and the flow guide piece 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 addition, the invention does not need to improve the shape of the air duct, only needs to add a baffle and a flow guide part to realize a good aggregated air supply effect, can be popularized and utilized in the conventional vertical air conditioner indoor unit, and has a skillful conception.

Further, in the vertical air conditioner indoor unit, the baffle is also configured to move backwards in a controlled manner to close the first gap corresponding to the baffle, so that the closed part does not discharge air; meanwhile, the baffle is also configured to be controlled to rotate on the vertical surface so as to adjust the relative position of the baffle, so that the position of the closed part can be adjusted through rotating the baffle, air flow can be intensively flowed to a certain direction and is guided by the inclined inner wall surface of the baffle to realize directional air supply, cold air is blown upwards without blowing a human body, hot air is blown downwards to fall to the ground, the use experience of a user is improved, meanwhile, wide-angle air supply in the left and right directions is matched with polymerization remote air supply, and the effect of no dead angle of air supply can be achieved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a floor type air conditioning indoor unit according to an embodiment of the present invention.

Fig. 2 is a schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 1, in which a baffle plate is moved forward.

Fig. 3 is another schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 2.

Fig. 4 is a schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 1, in which the baffle is moved backward and the notch is located at the upper portion.

Fig. 5 is another schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 4.

Fig. 6 is a schematic cross-sectional view of the indoor unit of an upright air conditioner shown in fig. 1, in which the shutter is moved backward and the notch is located at the right portion.

Fig. 7 is another schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 6.

Fig. 8 is a schematic structural view of the air guide, the baffle, the first driving mechanism, and the second driving mechanism of the floor air conditioning indoor unit shown in fig. 1.

Fig. 9 is a schematic sectional view of a baffle of the vertical air conditioning indoor unit shown in fig. 1.

Fig. 10 is an exploded schematic view of the indoor unit of a vertical air conditioner shown in fig. 1.

Detailed Description

The embodiment of the invention provides an indoor unit of a vertical air conditioner, which is an indoor part of a split air conditioner and is used for conditioning indoor air, such as refrigeration/heating, dehumidification, fresh air introduction and the like. For example, the indoor unit of the floor air conditioner may be an indoor unit of an air conditioner that performs cooling/heating by a vapor compression refrigeration cycle.

Fig. 1 is a schematic structural view of a floor type air conditioning indoor unit according to an embodiment of the present invention. Fig. 2 is a schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 1, in which the shutter 40 is moved forward. Fig. 3 is another schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 2. Fig. 4 is a schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 1, in which the damper 40 is moved backward and the notch is located at the upper portion. Fig. 5 is another schematic sectional view of the indoor unit of a vertical air conditioner shown in fig. 4. Fig. 6 is a schematic cross-sectional view of the indoor stand air conditioner shown in fig. 1, in which the shutter 40 is moved backward and the notch is located at the right portion. Fig. 7 is another schematic sectional view of the indoor unit of an upright air conditioner shown in fig. 6. Fig. 8 is a schematic structural view of the baffle 30, the baffle 40, the first driving mechanism, and the second driving mechanism of the floor air conditioning indoor unit shown in fig. 1. Fig. 9 is a schematic sectional view of the air guide 30 of the indoor unit of an upright air conditioner shown in fig. 1. Fig. 10 is an exploded perspective view of the indoor unit of the floor type air conditioner shown in fig. 1.

As shown in fig. 1 to 3, 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 a baffle 40. The casing 10 has a blower port 11 at the front side. 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 include an air inlet (not shown) for introducing indoor air. The housing 10 may be a unitary structure or may be defined by a front housing and a rear housing.

The air duct 20 is disposed in the casing 10, and has an air inlet 23 and an air outlet 21 facing the air supply opening 11, for guiding the air flow in the casing 10 to the air supply opening 11.

The baffle 30 is disposed in the air duct 20 and defines a first gap 15 with an inner wall of the air duct 20 adjacent to the air outlet 21.

The baffle 40 is provided on the front side of the baffle 30 and the baffle 40 surrounds a partial area of the peripheral side of the baffle 30 and has an outer convex inner wall surface gradually inclined from the rear to the front toward the horizontal center axis. The baffle 40 is configured to move forward in a controlled manner so that a second gap 16 is defined between the baffle 40 and the flow guide member 30, and the flow guide member 30 is used for guiding part of the airflow to the second gap 16 and making the airflow gradually converge towards the airflow center direction under the guidance of the inner wall surface of the baffle 40 and the flow guide member 30 and sequentially flow out of the air outlet 21 and the air supply opening 11. The baffle 40 does not cover the peripheral side circumference of the baffle 30 but has a notch in a partial area around the peripheral side of the baffle 30, i.e., the baffle 40 does not cover the peripheral side circumference of the baffle 30. As shown in fig. 8, the baffle 40 surrounds the peripheral side 3/4 area of the baffle 30.

In the indoor unit of a floor type air conditioner according to the embodiment of the present invention, by providing the baffle 40 at the front side of the air guide 30, the baffle 40 is disposed to surround a partial area of the peripheral side of the air guide 30 and has a convex inner wall surface inclined gradually from the rear to the front toward the horizontal central axis, so that the second gap 16 is defined between the baffle 40 and the air guide 30 when the baffle 40 moves forward. In the process that the air flow (heat exchange air flow, fresh air flow, etc.) entering the air duct 20 from the air inlet 23 flows to the air outlet 21, the air flow is guided by the flow guide 30 to blow toward the inner wall surface of the baffle 40 and flows into the second gap 16. The air outlet section of the second gap 16 is smaller, so that the air outlet speed is higher. Meanwhile, the high-speed airflow is gradually converged towards the center of the airflow in the outward flowing process under the guidance of the inner wall surface of the baffle 40 and the flow guide member 30 to form a convergence effect, so that the wind power is stronger, the air supply distance is longer, and the requirements of the vertical air conditioner indoor unit on long-distance air supply and strong air supply are met. In addition, the invention can realize a very good aggregated air supply effect by only adding the baffle 40 and the flow guide member 30 without improving the shape of the air duct 20, can be popularized and utilized in the conventional vertical air conditioner indoor unit, and has a very ingenious concept.

When the baffle 40 moves forward, the inner wall surface of the baffle 40 gradually moves away from the baffle 30, and the outer wall surface gradually moves closer to the inner wall of the air duct 20 near the air outlet 21. During the forward movement of the baffle 40, there is a case where the baffle 40 divides the first gap 15 into a second gap 16 including the inner wall surface of the baffle 40 and the flow guide 30, and a third gap (not shown in the drawings) including the outer wall surface of the baffle 40 and the inner wall of the air duct 20, and at this time, a part of the air flow in the housing 10 flows from the second gap 16 to the air outlet 21, and another part of the air flow flows from the third gap to the air outlet 21. In order to promote the airflow to be guided by the inner wall surface of the baffle 40 and the flow guide 30, and further to improve the aggregation effect, in some embodiments, in the vertical air conditioning indoor unit according to the embodiment of the present invention, the baffle 40 is configured to: controlled forward movement moves the inner wall surface of the baffle 40 away from the baffle 30 and the outer wall surface abuts the inner wall of the air chute 20 adjacent the air outlet 21 to allow air flow only from the second gap 16 to the air outlet 21.

In some embodiments, the inner wall of the air duct 20 adjacent to the air outlet 21 has a tapered shape with a gradually decreasing flow cross section along the airflow direction, and the flow guide 30 and the tapered portion 150 of the air duct 20 define a first gap 15, so that when the baffle 40 moves forward to define a second gap 16 between the baffle 40 and the flow guide 30, the flow guide 30 guides a part of the airflow to the second gap 16 and guides another part of the airflow to the first gap 15, and the airflow is gradually converged toward the airflow center under the guidance of the inner wall of the air duct 20 and the flow guide 30 and sequentially flows out of the air outlet 21 and the air blowing port 11.

As shown in fig. 2 and 3, the baffle 40 is moved forward until the outer wall surface abuts the tapered portion 150 of the air chute 20. Because the baffle 40 has a gap, the air outlet region is substantially an annular air outlet region formed by the first gap 15 and the second gap 16. A part of the air flow in the housing 10 is guided by the guiding member 30 to flow to the second gap 16 and then converge forward to flow out, and another part of the air flow is guided by the guiding member 30 to flow to the first gap 15 and gradually converge toward the air flow center under the guidance of the inner wall of the air duct 20 and the guiding member 30 and then sequentially flows out of the air outlet 21 and the air supply opening 11. Meanwhile, referring to fig. 2, since the position of the air inlet 23 is lower than the air outlet 21, the air flow flows from bottom to top to the flow guide member 30, and thus, the bottom section of the whole annular air outlet region is located at the upstream of the air flow compared with other sections, the air flow can flow into the bottom section of the annular air outlet region more smoothly, and the bottom section of the annular air outlet region has larger air volume and stronger wind power compared with other sections. The powerful airflow at the lower part has advantages in the processes of impact and polymerization with the airflow at the upper part and the airflow at the left side and the right side, and can drive the airflow to integrally lift and flow upwards towards the front and the upper part together, so that the effect of lifting and blowing air is realized. 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.

With continued reference to fig. 2, the inner wall surface of the baffle 40 is a convex smooth arcuate surface that slopes gradually from back to front toward the horizontal central axis. Providing the inner wall surface of the baffle 40 as a smooth arc surface can reduce the wind resistance when the airflow passes through the second gap 16. The outer wall surface of the baffle 40 is also an outward convex smooth arc surface which gradually inclines towards the horizontal central axis from back to front, and the arc structures of the outer wall surface and the inner wall surface of the baffle 40 are the same. Also, the tapered portion 150 of the air duct 20 also has an outer convex smooth arc surface gradually inclined from back to front toward the horizontal central axis, and the arc structures of the tapered portion 150 and the outer wall surface of the baffle 40 are the same, so that the outer wall surface of the baffle 40 can completely fit with the tapered portion 150 after the baffle 40 moves forward.

In the embodiment shown in fig. 1 and 2, the air supply opening 11 is circular, the air outlet 21 is circular, and the longitudinal section of the inner wall of the air duct 20 adjacent to the air outlet 21 is also circular. As shown in FIG. 2, the vertical plane projection of the front view of the baffle 30 is circular, the baffleThe diameter of the largest circle in the projection of the member 30, i.e., the width D1 at the widest point of the baffle member 30, is greater than or equal to the diameter D2 of the air outlet 21. D₁D2 or more makes the appearance of the indoor unit of the vertical air conditioner more beautiful. Meanwhile, the vertical plane projection of the front view of the baffle 40 is a circular ring with a gap, and the diameter of the innermost ring in the projection of the baffle 40 is smaller than or equal to the diameter of the air outlet 21, that is, the diameter of the arc formed by the projection of the front end of the baffle 40 on the vertical plane is smaller than or equal to the diameter of the air outlet 21, so that the baffle 40 can be hidden inside the air duct 20, and the appearance integrity of the indoor unit is ensured.

In some embodiments, the baffle 40 of the floor air conditioning indoor unit of the embodiments of the present invention is further configured to: controlled backward movement to make the inner wall surface of the baffle 40 abut against the deflector 30 and the outer wall surface abut against the inner wall of the air duct 20 to close the first gap 15 corresponding to the baffle 40, so that the closed part does not output air. As described above, in the embodiment shown in fig. 2, since the baffle 40 surrounds the 3/4 area on the peripheral side of the baffle 30, when the baffle 40 moves backward, it can close the 3/4 area of the first gap 15, and at this time, the air flow will be concentrated to the first gap 15 of the area 1/4 that is not closed and then flow to the air outlet 21, that is, the air flow will be concentrated to the corresponding first gap 15 at the notch of the baffle 40.

In some embodiments, the baffle 40 of the floor air conditioning indoor unit of the embodiments of the present invention is further configured to: controlled rotation in the vertical plane to adjust the relative position of the flapper 40. That is to say, through rotating baffle 40 in the vertical plane, can adjust baffle 40 the position of the region of surrounding the week side of water conservancy diversion piece 30, the position of the enclosure part of first clearance 15 was located when also having adjusted baffle 40 and shifting backward, and then make the air current concentrate the direction that the breach that flows to baffle 40 was located and receive the guide of convergent portion 150 of wind channel 20 and realize directional air supply, thereby realize that cold wind rises upward and does not blow the human body, hot-blast downblowing can fall to the ground, promote user's use experience, the direction wide-angle air supply of controlling simultaneously, the long-distance air supply of cooperation polymerization, can reach the effect at air supply no dead angle. Considering that the main air outlet directions of the indoor unit of the floor air conditioner include upward, downward, leftward and rightward, it is preferable to arrange the baffle 40 in the region 3/4 around the peripheral side of the air guide 30, and the notch occupies the region 1/4.

For example, the baffle 40 rotates in a vertical plane until the notch is located at the lower portion, at this time, the baffle 40 moves backward, the first gaps 15 at the upper portion, the left portion and the right portion are all closed and do not discharge air, the airflow in the housing 10 is guided by the flow guide member 30 to flow through the notch of the baffle 40 and enter the first gap 15 at the lower portion, and then the airflow is guided by the tapered portion 150 of the air duct 20 and the flow guide member 30 to flow upward and upward, so that upward directional air supply is realized. Compared with the baffle 40 which moves forwards and drives the airflow of the rest sections to be blown upwards by utilizing the airflow of the bottom section of the annular air outlet area, the upward directional air supply has a more obvious blowing-up effect, and is particularly suitable for a refrigeration mode.

As shown in fig. 4 and 5, the baffle 40 rotates in the vertical plane until the notch is located at the upper portion, at this time, the baffle 40 moves backward, the first gaps 15 at the lower portion, the left portion and the right portion are all closed and do not exhaust air, the airflow in the housing 10 is guided by the flow guide 30 to flow through the notch of the baffle 40 and enter the first gap 15 at the upper portion, and then the airflow is guided by the tapered portion 150 of the air duct 20 and the flow guide 30 to flow downward and downward, so that the downward directional air supply is realized, and the air supply device is particularly suitable for a heating mode.

As shown in fig. 6 and 7, the baffle 40 rotates in the vertical plane until the gap is located at the right portion, at this time, the baffle 40 moves backward, the first gaps 15 at the upper portion, the lower portion and the left portion are all closed and do not discharge air, the airflow in the housing 10 is guided by the flow guide member 30 to flow through the gap of the baffle 40 and enter the first gap 15 at the right portion, and then the airflow is guided by the tapered portion 150 of the air duct 20 and the flow guide member 30 to flow toward the front left portion, so that the air supply oriented to the left is realized. Similarly, the indoor unit of the embodiment of the invention can realize the directional air supply to the right. Meanwhile, as the air flow is guided by the flow guide piece 30 and the tapered part 150 of the air duct 20 to converge, the wind power is stronger, the air supply distance is longer, and the indoor unit can achieve the effect of no dead angle in air supply.

In some embodiments, the indoor unit of a floor air conditioner according to an embodiment of the present invention further includes: a first drive mechanism including a rack 41, a first gear 42, and a first motor 43; the rack 41 extends along the front-back direction and is fixed with the baffle 40, the first gear 42 is meshed with the rack 41, and the first gear 42 is driven by the first motor 43 to rotate to drive the rack 41 to move back and forth so as to drive the baffle 40 to move back and forth.

In some embodiments, the indoor unit of a floor air conditioner according to the embodiments of the present invention further includes: a second drive mechanism including a ring gear 51, a second gear 52, and a second motor 53; the gear ring 51 is arranged along the circumferential periphery of the diversion part 30 and fixed with the baffle 40, the second gear 52 is meshed with the gear ring 51, and the second gear 52 is driven by the second motor 53 to rotate to drive the gear ring 51 to rotate on the vertical surface so as to drive the baffle 40 to rotate on the vertical surface. As shown in fig. 8, the baffle 40, the rack 41, and the ring gear 51 may be integrated by providing the bracket 44.

Referring to fig. 9, in some embodiments, the outer contour of the flow guiding element 30 is formed by rotating the flow guiding line around the horizontal central axis (x axis) by one circle, the flow guiding line includes a first convex arc section (ab section), a second convex arc section (bc section), a third straight line section (cd section), a fourth convex arc section (de section) and a fifth convex arc section (ef section) which are smoothly connected in sequence, and the first arc section (ab section) and the second arc section (bc section) are gradually far away from the horizontal central axis from the back to the front, and the terminal point of the fifth arc section (ef section) is on the horizontal central axis together with the starting point of the first arc section (ab section). The embodiment of the invention makes the whole flow guide member 30 be a symmetrical round-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 which comprises a first convex arc-shaped section (ab section), a second convex arc-shaped section (bc section), a third straight-line section (cd section), a fourth convex arc-shaped section (de section) and a fifth convex 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. Compared with other streamline flow guiding parts, the flow guiding part 30 adopting the embodiment of the invention has lower wind resistance and smaller wind loss.

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 arcuate segment (ab segment) is greater than the radius of the second arcuate segment (bc segment); the radius of the fifth arc-shaped section (ef section) is larger than that of the first arc-shaped section (ab section); the radius of the fourth arc segment (de segment) is smaller than the radius of the first arc segment (ab segment). In some embodiments, the ratio of the radii of the first arc-shaped section (ab section) and the second arc-shaped section (bc section) is between 3.8 and 4.3, for example, the ratio of the radii is 3.8, 4.0 and 4.3, which can comb the air outlet flow line and minimize the air outlet resistance when the air flows through the rear end surface of the flow guide block 30; the ratio of the radii of the fifth arc segment (ef segment) to the first arc segment (ab segment) is between 2.5 and 3.0, for example the ratio of radii is 2.5, 2.8, 3.0; the ratio of the radii of the fifth arc-shaped segment (ef segment) and the fourth arc-shaped segment (de segment) is between 10.0 and 18.0, for example, the ratio of the radii is 10.0, 14.0 and 18.0, which can ensure the polymerization effect of the flow guide member 30 itself and consider the overall aesthetic property. Through test tests, compared with other streamline flow guide parts, after the flow guide part 30 provided by the embodiment of the invention is adopted, the wind loss is reduced by about 3% compared with that before under the same working condition.

In some embodiments, the ratio of the linear distance from the beginning of the first arcuate segment (ab segment) to the end of the fifth arcuate segment (ef segment) to the diameter of the largest circle in projection of the baffle 30 is between 0.48 and 0.53. As shown in fig. 2, the linear distance between the beginning of the first arc segment (ab segment) and the end of the fifth arc segment (ef segment), i.e. the ratio of the thickness W to the width D1 of the baffle 30, is between 0.48 and 0.53, e.g. 0.48, 0.50, 0.53, which on the one hand can improve the polymerization effect and on the other hand also make the appearance more attractive.

The indoor unit of a floor type air conditioner may further include a heat exchanger 50 and a fan. The heat exchanger 50 is disposed in the housing 10. A blower is also provided in the casing 10 for forcing the indoor air to enter the casing 10 to exchange heat with the heat exchanger 50, and then to be blown out from the air blowing port 11 through the air duct 20. The heat exchanger 50 is preferably of a two-section structure, the first heat exchange section and the second heat exchange section are both flat-shaped, the top ends of the first heat exchange section and the second heat exchange section are connected, and the bottom ends of the two heat exchange sections are arranged on a water pan at the bottom of the air duct 20 and are respectively located at two sides of the air inlet 23. The inverted v-shaped configuration of the heat exchanger 50 provides a sufficient heat exchange area, and provides more contact with the air flowing upward from the air inlet 23, thereby providing higher heat exchange efficiency and more efficient use of the interior space of the air duct 20. The air duct 20 is located at the middle upper portion of the housing 10, and one or more air inlets are formed at the lower portion of the housing 10. A blower may be installed below the air duct 20 and facing the air inlet 23 so as to blow the air flow entering the lower space of the housing 10 from the air inlet toward the inside of the air duct 20. The fan may be a double suction centrifugal fan comprising a volute 61, a centrifugal fan 63 and a motor 62.

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

1. An indoor unit of a floor type air conditioner, comprising:

a casing having an air supply outlet on the front side;

the baffle is arranged on the front side of the flow guide piece, surrounds a partial area of the peripheral side of the flow guide piece and is provided with an outer convex inner wall surface which gradually inclines towards the horizontal central axis from back to front; wherein the baffle is configured to: the baffle plate is controlled to move forwards so that a second gap is defined between the baffle plate and the flow guide piece, and the flow guide piece is used for guiding partial airflow to the second gap, enabling the airflow to gradually converge towards the airflow center direction under the guidance of the inner wall surface of the baffle plate and the flow guide piece and enabling the airflow to sequentially flow out of the air outlet and the air supply outlet.

2. The indoor unit of a floor air conditioner according to claim 1,

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 air flow direction, the flow guide piece and the tapered part of the air duct limit the first gap, so that when the baffle moves forwards to limit the second gap between the baffle and the flow guide piece, the flow guide piece guides one part of air flow to the second gap and guides the other part of air flow to the first gap, and the air flow is gradually converged towards the air flow center direction under the guidance of the inner wall of the air duct and the flow guide piece and sequentially flows out of the air outlet and the air supply outlet.

3. The indoor unit of a floor air conditioner according to claim 2, wherein,

the baffle is further configured to: the air guide piece is controlled to move backwards so that the inner wall surface of the baffle is attached to the air guide piece, and the outer wall surface of the air guide piece is attached to the inner wall of the air duct so as to close the first gap corresponding to the baffle, so that air is not exhausted from the closed part.

4. The indoor unit of a floor air conditioner according to claim 3, further comprising:

the first driving mechanism comprises a rack, a first gear and a first motor; the rack extends along the front-back direction and is fixed with the baffle, the first gear is meshed with the rack, and the first gear is driven by the first motor to rotate to drive the rack to move back and forth so as to drive the baffle to move back and forth.

5. The indoor unit of a floor air conditioner according to claim 3, wherein,

the baffle is further configured to: controlled rotation in the vertical plane to adjust the relative position of the baffles.

6. The indoor unit of a floor air conditioner according to claim 5, further comprising:

the second driving mechanism comprises a gear ring, a second gear and a second motor; the gear ring is along circumference a week of water conservancy diversion spare sets up and with the baffle is fixed, the second gear with the gear ring meshing, the second gear receives second motor drive rotates the drive the gear ring rotates and then drives at vertical face the baffle rotates at vertical face.

7. The indoor unit of a floor air conditioner according to claim 1,

the outer contour of the flow guide piece is formed by rotating a flow guide line around a horizontal central axis for a circle, the flow guide line comprises a first arc-shaped section, a second arc-shaped section, a third straight line section, a fourth arc-shaped section and a fifth arc-shaped section, the first arc-shaped section, the second arc-shaped section and the fifth arc-shaped section are connected smoothly and outwards in sequence, the first arc-shaped section and the second 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 located on the horizontal central axis.

8. The indoor unit of a floor type air conditioner according to claim 7, wherein the indoor unit of a floor type air conditioner includes

The ratio of the radii of the first arcuate segment to the second arcuate segment is between 3.8 and 4.3;

the ratio of the radii of the fifth arcuate segment to the first arcuate segment is between 2.5 and 3.0;

the ratio of the radii of the fifth arcuate segment to the fourth arcuate segment is between 10.0 and 18.0.

9. The indoor unit of a floor type air conditioner according to claim 7, wherein the indoor unit of a floor type air conditioner includes

The air outlet is a circular opening;

the vertical plane projection of the front view of the baffle is in a circular ring shape with a gap, and the diameter of the innermost ring in the baffle projection is smaller than or equal to that of the air outlet.

10. The indoor unit of a floor type air conditioner according to claim 9, wherein the indoor unit of a floor type air conditioner includes

The ratio of the linear distance between the starting point of the first arc-shaped segment and the end point of the fifth arc-shaped segment to the diameter of the largest circle in the projection of the flow guide piece is between 0.48 and 0.53.