WO2022012055A1

WO2022012055A1 - Vertical air-conditioning indoor unit

Info

Publication number: WO2022012055A1
Application number: PCT/CN2021/077898
Authority: WO
Inventors: 尹晓英; 王永涛; 张蕾; 李英舒; 袁俊军
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2020-07-16
Filing date: 2021-02-25
Publication date: 2022-01-20
Also published as: CN111912022A; CN111912022B

Abstract

Disclosed is a vertical air-conditioning indoor unit, comprising an air supply body, wherein the front side thereof is provided with an air supply outlet which is of an elliptical shape, and an inner wall of the air supply body that is close to the air supply outlet is of a tapered shape, the flow-passage cross section thereof gradually reducing in the air flow direction; a flow guide member is provided on a rear side of the air supply outlet and comprises a front end face, and two first flow guide faces and two second flow guide faces which respectively extend backwards from the upper side, the lower side and two transverse sides of the front end face, the front end face being of an elliptical shape; an annular air outlet gap is defined by the flow guide member and the tapered portion of the air supply body, and the flow guide member guides an air flow to the annular air outlet gap, such that the air flow is guided by the inner wall of the air supply body to gradually converge towards the center of the air flow; each first flow guide face extends from the rear to the front and gradually away from the central horizontal symmetric plane of the flow guide member, and comprises a first concave arc-shaped section and a second convex arc-shaped section connected to each other; and each second flow guide face extends from the rear to the front and gradually away from the central longitudinal vertical symmetric plane of the flow guide member, and comprises a third concave arc-shaped section, a fourth convex arc-shaped section and a fifth convex arc-shaped section connected to each other.

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 technique

Compared with the wall-mounted air conditioner indoor unit, the vertical air conditioner indoor unit has a larger number of horses and stronger cooling and heating capacity, and is usually placed in a large indoor space such as a living room.

Due to the larger coverage area of the vertical air conditioner indoor unit, it is required to have stronger long-distance air supply capability and strong air outlet capability. In order to achieve long-distance air supply, the existing products usually adopt the method of increasing the fan speed to increase the wind speed and air volume. However, the increase of the fan speed will lead to a series of problems such as increased air conditioning power and increased noise, which will affect the user experience.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a vertical air conditioner indoor unit that overcomes the above problems or at least partially solves the above problems, so as to achieve better long-distance air supply and strong air supply effects.

A further object of the present invention is to make the vertical air conditioner indoor unit have the effect of raising the wind.

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

The air supply body is provided with an air supply port on the front side. The air supply port is an oval shape whose length direction is parallel to the vertical direction. ;

The air guide is arranged on the rear side of the air supply port, and includes a front end surface and two first air guide surfaces and two second air guide surfaces extending backward from the upper and lower sides and the lateral sides of the front end surface respectively. The outer contour is regarded as an oval set vertically in the length direction;

The deflector and the tapered part of the air supply body define an annular air outlet gap, and the air deflector is used to guide the air flow to the annular air outlet gap, so that the air flow is gradually converged towards the center of the air flow under the guidance of the inner wall of the air supply body blow out the air outlet; and

During the process of extending from the rear to the front, each first flow guide surface gradually moves away from the central horizontal symmetry plane of the flow guide member, and includes a concave first arc section and an outer convex second arc section that are connected in sequence;

During the process of extending from rear to front, each second flow guide surface gradually moves away from the central longitudinal vertical symmetry plane of the flow guide member, and includes a concave third arc-shaped segment and a convex fourth arc-shaped segment that are connected in sequence. segment and a convex fifth arc segment.

Optionally, the radius of the second arc-shaped segment is larger than that of the first arc-shaped segment.

Optionally, the ratio of the radii of the second arcuate segment to the first arcuate segment is between 1.5 and 2.

Optionally, the radius of the third arcuate segment is smaller than that of the fourth arcuate segment and greater than that of the fifth arcuate segment.

Optionally, the ratio of the radii of the third arc segment to the fifth arc 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.

Optionally, in the section obtained by cutting the flow guide with a longitudinal vertical plane, the outer contour of the front end surface sequentially includes a convex upper arc section, a middle vertical section and a convex lower arc section from top to bottom. , the ratio of the length of the middle vertical section to the radius of the upper arc section is between 1.6 and 2.3; and the ratio of the length of the middle vertical section to the radius of the lower arc section is between 1.6 and 2.3.

Optionally, in a cross section obtained by cutting the flow guide in a horizontal plane, the outer contour of the front end surface includes a connecting convex sixth arc segment and a convex seventh arc segment.

Optionally, the ratio of the width of the narrowest part of the annular air outlet gap to the width of the air guide is less than 0.6.

Optionally, the vertical air conditioner indoor unit also includes a driving mechanism, which is installed on the air supply body and used to support the air guide member and drive the air guide member to translate back and forth, so as to open and close the air supply port or adjust the air outlet area of the annular air outlet gap. .

Optionally, the air supply body is configured such that the upward angle of the air flow in the bottom section of the annular air outlet gap is greater than the downward angle of the air flow in the top section thereof, so that the air flow in the bottom section of the annular air outlet gap drives the air flow in the remaining sections to move toward the same direction. Upward flow.

In the vertical air conditioner indoor unit of the present invention, the inner wall of the air supply body adjacent to the air supply port is tapered, so that the flow cross section becomes gradually smaller along the air flow direction. In addition, an annular air outlet gap is defined by the air guide member inside the air supply body and the tapered portion of the inner wall of the air supply body. In this way, when the airflow (heat exchange airflow, fresh air airflow, etc.) entering the air supply body from the air inlet flows to the air supply opening, it will be blown to the inner wall of the air supply under the guidance of the air guide, and finally flow to the annular outlet. within the gap. Since the air outlet section of the annular air outlet gap is smaller, the air outlet speed is higher. Guided by the tapered inner wall of the air supply body, the high-speed airflow gradually converges in the direction of the center of the airflow during the outward flow process, forming a convergence effect, making the wind stronger and the air supply distance farther, satisfying the vertical air conditioner indoor unit. Demand for long-distance air supply and strong air supply.

In the vertical air conditioner indoor unit of the present invention, the air guide member not only defines an annular air outlet gap with the inner wall of the air supply to achieve the effect of increasing the wind speed, but also can just guide the airflow to the annular air outlet gap, or to force the airflow. Flow toward the annular air outlet gap to force the airflow to be guided by the tapered inner wall to form the final aggregated air outlet effect. The present invention achieves a very good aggregated air supply effect only by improving the shape of the air supply body and adding a deflector.

Further, the present invention optimizes the shape of the air guide, especially the two first air guide surfaces and the second air guide surface each include a plurality of arc segments, and the size relationship of each arc segment is determined. Optimised so that the airflow has less resistance to flow as it is guided by and away from the first and second guide surfaces, resulting in less energy loss and noise .

Further, the present invention designs the contour of the front end surface to include a plurality of convex arc segments, so that the front end surface can also play a certain role of converging airflow depending on its own shape, which improves the aggregated air supply of the air supply port. Effect.

Further, the present invention specially designs the shape of the air supply body, so that the upward angle of the air flow in the bottom section of the annular air outlet gap is greater than the downward angle of the air flow in the top section. Since the upward angle of the upward part of the air flow is greater than the downward angle of the downward part of the air flow, the mixed air flow will flow upward as a whole. In the cooling mode, the upward flowing cold air can fully avoid the human body, and after reaching the highest point, it will be scattered downward to achieve a "shower-style" cooling experience. Moreover, the upward blowing of the airflow is also beneficial to increase the air supply distance.

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

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. It will be understood by those skilled in the art that the drawings are not necessarily to scale. In the attached picture:

1 is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention;

Fig. 2 is a front view of the vertical air conditioner indoor unit shown in Fig. 1;

Fig. 3 is another perspective schematic diagram of the vertical air conditioner indoor unit shown in Fig. 1;

4 is an N-N sectional view of the vertical air conditioner indoor unit shown in FIG. 2;

Fig. 5 is the M-M sectional enlarged view of the vertical air conditioner indoor unit shown in Fig. 2;

Fig. 6 is the sectional view obtained by cutting the flow guide at the central horizontal symmetry plane;

FIG. 7 is a cross-sectional view obtained by cutting the flow guide at a central longitudinal vertical symmetry plane.

detailed description

Embodiments of the present invention provide a vertical air conditioner indoor unit 100, which is an indoor part of a split-type air conditioner, and is used to adjust indoor air, such as cooling/heating, dehumidification, introducing fresh air, and the like. For example, the vertical air conditioner indoor unit 100 may be an indoor unit of an air conditioner that performs cooling/heating by a vapor compression refrigeration cycle system.

1 is a schematic structural diagram of a vertical air conditioner indoor unit 100 according to an embodiment of the present invention; FIG. 2 is a front view of the vertical air conditioner indoor unit 100 shown in FIG. 1 ; FIG. 3 is a vertical air conditioner indoor unit 100 shown in FIG. 1 . FIG. 4 is a cross-sectional view of the vertical air conditioner 100 shown in FIG. 2;

As shown in FIGS. 1 to 5 , the indoor unit 100 of the vertical air conditioner according to the embodiment of the present invention may generally include a blower body 10 and a flow guide 30 .

The front side of the air blowing body 10 is provided with an air blowing port 11 . As shown in FIG. 1 to FIG. 4 , the air blowing body 10 may specifically be the casing of the vertical air conditioner indoor unit 100 . In some alternative embodiments, the air supply body may also be an air duct provided in the casing of the vertical air conditioner indoor unit 100 . The air blowing port 11 is used for blowing the airflow in the air blowing body 10 into the room, so as to adjust the indoor air. The aforementioned airflow may be cold air produced by the vertical air conditioner indoor unit 100 in the cooling mode, hot air produced in the heating mode, or fresh air introduced in the fresh air mode. The number of the air supply ports 11 may be one or a plurality of them. The air supply body 10 can also be provided with an air inlet 13 for introducing air flow.

The air supply port 11 is an oval shape whose length direction is parallel to the vertical direction. That is, the projection of the outer contour of the air outlet 11 on the transverse vertical plane is an oval with straight sides extending in the vertical direction. An oval refers to a shape formed by the meeting of two parallel spaced straight sides and two symmetrically arranged circular arcs (usually semicircles).

The air guide member 30 is arranged on the rear side of the air supply port 11, and includes a front end surface 31 and two first air guide surfaces 32, 33 and two second air guide surfaces extending backward from the upper and lower sides and the lateral sides of the front end surface 31 respectively. Faces 34, 35. The front outer contour of the front end surface 31 is an oval shape vertically arranged in the length direction to match the shape of the air supply port 11 .

The inner wall of the air supply body 10 adjacent to the air supply port 11 is in a tapered shape where the flow cross section gradually decreases along the air flow direction. In other words, in the vicinity of the air blowing port 11, along the air flow direction, the flow cross section of the air blowing body 10 gradually becomes smaller. The air guide member 30 and the aforementioned tapered portion of the air supply body 10 define an annular air outlet gap 15 . It can be seen that the front view shape of the annular air outlet gap 15 is approximately an oval. The air guide 30 is used to guide the air flow to the annular air outlet gap 15, so that the air flow is guided by the inner wall of the air supply body 10, gradually converges in the direction of the center of the air flow, and flows out of the air supply port 11 (FIG. 4 shows the direction of the air flow with arrows) .

In the embodiment of the present invention, the air flow inside the air supply body 10 will blow to the inner wall of the air supply body 10 under the guidance of the air guide 30 during the process of flowing to the air supply port 11 , and finally flow into the annular air outlet gap 15 . Since the air outlet section of the annular air outlet gap 15 is smaller, the air outlet speed thereof is higher. Under the guidance of the tapered inner wall of the air supply body, the high-speed airflow gradually converges in the direction of the center of the airflow in the process of flowing to the outside of the air supply port 11, forming a convergence effect, making the wind stronger and the air supply distance longer. Therefore, the embodiments of the present invention meet the requirements of the vertical air conditioner indoor unit 100 for long-distance air supply and strong air supply.

In addition, in the present embodiment, the air blowing port 11 is made into an oval shape, based on the following three points. On the one hand, compared with the conventionally used circular air outlet, the overall shape of the oblong air outlet with the same air outlet area is more "flat", which is more conducive to airflow aggregation. On the other hand, due to the vertical arrangement of the length of the oval air outlet, compared with the circular air outlet with the same air outlet area, its height (the distance from the highest point to the lowest point of the air outlet) is higher, and the blown air is vertical. The length in the straight direction is longer. This part of the long-length airflow is blown forward or upward, and after landing in front of the air conditioner due to gravity, its coverage length (the size of the airflow landing area in the front-rear direction) is longer, and the space for the airflow coverage is also larger. For example, in a specific model, when the height of the air supply port is 20cm, the coverage length of the airflow after landing is 2m, and when the height of the air supply port is 25cm, the coverage length of the airflow can reach 3m after landing. In the third aspect, compared with the traditional circular air outlet, the oblong air outlet is more suitable for the overall shape of the vertical air lift indoor unit (the vertical air lift indoor unit is a long strip vertically arranged in the length direction) , making it more harmonious and beautiful.

In the vertical air conditioner indoor unit 100 of the embodiment of the present invention, the air guide member 30 not only defines the annular air outlet gap 15 with the inner wall of the air supply body 10 to achieve the effect of increasing the wind speed, but also can just guide the airflow to the annular air outlet. The gap 15, or the forced air flow toward the annular air outlet gap 15, impacts the inner wall of the air supply body 10 to force the air flow to be guided by the tapered inner wall to form the final aggregated air outlet effect. The embodiment of the present invention achieves a very good aggregated air supply effect only by improving the shape of the air supply body and adding a deflector.

FIG. 6 is a sectional view obtained by cutting the flow guide at a central horizontal symmetry plane; FIG. 7 is a cross section view obtained by cutting the flow guide at a central longitudinal vertical symmetry plane.

As shown in FIG. 4 and FIG. 7 , in the embodiment of the present invention, each of the first air guide surfaces 32 and 33 gradually moves away from the central horizontal symmetry plane (B plane) of the air guide member 30 during the process of extending from the rear to the front, and It includes a concave first arc segment (gh segment) and a convex second arc segment (hi segment) that are connected in sequence. As shown in FIG. 5 and FIG. 6 , during the process of extending each second

flow guide surface

34 , 35 from the rear to the front, it gradually moves away from the central longitudinal vertical symmetry plane of the flow guide member 30 (ie, the A plane, the longitudinal direction refers to the front-back direction), and includes a concave third arc segment (ab segment), a convex fourth arc segment (bc segment), and a convex fifth arc segment (cd segment) that are connected in sequence. The center of each concave arc-shaped segment is located outside the outer contour of the air guide 30 , and the center of each convex arc segment is located inside the outer contour of the air guide 30 . The junction of each arc segment is a smooth transition. In addition, the two first guide surfaces 32 and 33 can also be made symmetrical with respect to the central horizontal symmetry plane (B plane), and the two second guide surfaces 34 and 35 can be made symmetrical with respect to the central longitudinal vertical symmetry plane (A plane). symmetry.

When the airflow flows to the first guide surfaces 32 and 33, it first flows through the first arc-shaped section (gh section). Since the first arc-shaped section is concavely designed, the airflow velocity is accelerated to keep away from the central axis of the air supply port 11. It quickly rushes towards the inner wall of the air blowing body 10 . The second arc-shaped section (hi section) is convex, so as to be closer to the direction of the tapered inner wall of the air supply body 10, so that the air flow is guided by the tapered inner wall of the air supply body 10 and turns toward the center of the air supply port During the turning process of the axis, the resistance of the second arc segment (hi segment) is smaller.

In the same way, when the airflow flows to the second guide surfaces 34 and 35, it first flows through the third arc-shaped section (section ab), because the third arc-shaped section (section ab) is concavely designed, so that the airflow velocity is accelerated, so that the Away from the central axis of the air blowing port 11 , it rushes toward the inner wall of the air blowing body 10 rapidly. The fourth arc section (bc section) and the fifth arc section (cd section) are convex, so as to be closer to the direction of the tapered inner wall of the air supply body 10, so that the airflow is tapered in the air supply body 10. When the inner wall is guided and turned toward the central axis of the air supply port 11, the resistance of the fourth arc-shaped section and the fifth arc-shaped section is smaller.

Therefore, in the above embodiment, the two first air guide surfaces 32, 33 and the second air guide surfaces 34, 35 each include a plurality of arc segments, and the size relationship of each arc degree is optimized, so that the airflow is The flow resistance in the process of being guided by the first guide surfaces 32, 33 and the second guide surfaces 34, 35 and leaving the first guide surfaces 32, 33 and the second guide surfaces 34, 35 is smaller, so that its energy Loss and noise are smaller.

Further, in the embodiment of the present invention, the above-mentioned effects are enhanced by optimizing the magnitude relationship of each camber. For example, the radius of the second arcuate segment (hi segment) can be made larger than the first arcuate segment (gh segment). Specifically, the ratio of the radii of the second arcuate segment (hi segment) to the first arcuate segment (gh segment) may be between 1.5 and 2, preferably between 1.6 and 1.8. For example, the radius of the third arc segment (ab segment) can be made smaller than the fourth arc segment (bc segment) and larger than the fifth arc segment (cd segment). Specifically, the ratio of the radius of the third arc segment (ab segment) to the fifth arc segment (cd segment) may be between 1 and 1.5, preferably between 1.1 and 1.4, so that the fourth arc segment (bc segment) ) to the radius of the fifth arcuate segment (cd segment) is between 8 and 12, preferably between 9 and 11.

_{As shown in FIG. 5 , the ratio of the width D 1} of the narrowest part of the annular air outlet gap 15 to the width W ₁ of the air guide 30 can also be set to be less than 0.6, preferably less than 0.5. The inventors have confirmed through theoretical analysis and experiments that _{when the ratio of D 1} to W ₁ is less than 0.5, the airflow convergence effect can be guaranteed. If it is not within this range, the convergence effect will be significantly reduced.

In some embodiments, the contour of the front end surface 31 can be specially designed to include a plurality of convex arc segments, so that the front end surface 31 can play a certain role of converging airflow depending on its own shape, which improves the air flow rate. The aggregated air supply effect of the tuyere.

Specifically, as shown in FIG. 7 , in a cross section (for example, the cross section of FIG. 7 ) obtained by cutting the flow guide 30 on a longitudinal vertical plane (for example, plane A), the outer contour of the front end surface 31 sequentially includes an external convexity from top to bottom The upper arc segment (ik segment), the middle vertical segment (kn segment) and the convex lower arc segment (np segment). The ratio of the length of the middle vertical section (kn section) to the radius of the upper arc section (ik section) can be further set between 1.6 and 2.3, preferably between 1.8 and 2.1; the middle vertical section (kn section) The ratio of the length of the to the radius of the lower arc segment (np segment) is between 1.6 and 2.3, preferably between 1.8 and 2.1.

Alternatively, as shown in FIG. 6 , in a cross-section (for example, the cross-section shown in FIG. 6 ) obtained by cutting the flow guide 30 with a horizontal plane (for example, plane B), the outer contour of the front end surface 31 includes an adjacent convex sixth Arc segment (de segment) and convex seventh arc segment (ej segment). Preferably, the radii of the sixth arc segment (de segment) and the seventh arc segment (ej segment) are the same, and the centers of the two are further coincident to form an integral arc segment.

As shown in FIGS. 5-7 , the deflector 30 further includes a rear end surface 36 . The rear end face 36 may be in the shape of a convex arc (section af) with a vertically extending axis to achieve a smooth transition with its adjacent face.

In some embodiments, as shown in FIGS. 4 and 5 , the vertical air conditioner indoor unit 100 further includes a driving mechanism 14 . The driving mechanism 14 is installed on the air supply body 10, and is used to support the air guide member 30 and drive the air guide member 30 to translate back and forth, so as to open and close the air supply port 11 or adjust the air outlet area of the annular air outlet gap 15, so that the annular air outlet gap can be adjusted. The air volume, wind speed and air supply distance of 15 can be adjusted, which enriches the air supply adjustment mode. The driving mechanism 14 can be an electric telescopic rod.

For example, when the deflector 30 is moved forward, the distance between it and the inner wall of the air supply body 10 becomes smaller, the air outlet volume of the annular air outlet gap 15 becomes smaller, the wind speed becomes larger, and the air supply distance becomes longer. On the contrary, when the deflector 30 is moved backward, the air outlet volume of the annular air outlet gap will become larger, the wind speed will become smaller, and the air supply distance will become shorter.

_{The width W 1} of the air guide 30 can be _{equal to the width W 2 of the} air outlet 11 , as shown in FIG. 5 . The height of the air guide 30 is equal to the height of the air supply opening 11 , so that the air guide 30 can close the air supply opening 11 exactly.

In some embodiments, as shown in FIG. 4 , the air supply body 10 may be configured such that the upward angle of the airflow of the bottom section of the annular air outlet gap 15 is greater than the downward inclination angle of the airflow of the top section of the annular air outlet gap 15 , so that the bottom of the annular air outlet gap 15 is The airflow of the section drives the airflow of the remaining sections to flow upward and forward together. The bottom edge of the air outlet 11 refers to the arc edge at the bottom of the air outlet 11 , the top edge refers to the arc edge at the top, and the lateral side edges refer to the straight edges on both lateral sides. Corresponding to the above-mentioned bottom circular arc edge, top circular arc edge and lateral two side straight edges of the air supply port 11 respectively are the bottom section, top section and lateral two side sections of the annular air outlet gap. The upward angle refers to the angle between the airflow direction and the horizontal plane at the bottom section of the annular air outlet gap 15, and the downward angle refers to the included angle between the airflow direction and the horizontal plane at the top section of the annular air outlet gap 15 (if the airflow there is blown horizontally, the downward angle is The inclination angle is 0°). Since the upward angle of the upward part of the air flow is greater than the downward angle of the downward part of the air flow, the air flow after the mixed air flow will flow upward as a whole. In the cooling mode, the upward flowing cold air can fully avoid the human body, and after reaching the highest point, it will be scattered downward to achieve a "shower-style" cooling experience. Moreover, the upward blowing of the airflow is also beneficial to increase the air supply distance.

For example, as shown in FIG. 4 and FIG. 5 , the air supply port 11 is opened at the top of the front side of the air supply body 10 , and the sections of the top wall 151 and the lateral two side walls 152 of the air supply body 10 that are connected to the air supply port 11 from the rear It is gradually inclined forward toward the horizontal central axis x-axis of the air supply port 11 (intersection of the central horizontal symmetry plane and the central longitudinal vertical symmetry plane). The section where the front wall 153 of the air supply body 10 is connected to the air supply port 11 is extended in the vertical direction, so that the upward angle of the airflow at the bottom of the annular air outlet gap 15 is the largest, which is 90°, and the bottom of the annular air outlet gap 15 is extended. Sections have more clearance space. In addition, the position of the air inlet 13 can also be made lower than the air supply port 11, so that the air flow can flow to the air guide 30 from bottom to top. In this way, the bottom section of the annular air outlet gap 15 is upstream of the airflow compared to other sections, so that the airflow will flow into the bottom section of the annular air outlet gap 15 more smoothly first. Based on the design of the above two points, the bottom section of the annular air outlet gap 15 has a larger air volume and stronger wind force than the other sections. The strong airflow at the bottom has an advantage in the impact and aggregation process with the airflow on the upper and lateral sides of the annular air outlet gap 15, and more powerfully drives the airflow as a whole to flow upward and forward together to achieve a better upward air supply effect.

In some embodiments, as shown in FIGS. 3 and 4 , the air inlet 13 is opened on the rear side of the air supply body 10 . The vertical air conditioner indoor unit 100 further includes a heat exchanger 40 and a fan 50 . The heat exchanger 40 is in the shape of a plate, which is vertically placed in the air supply body 10 and faces the air inlet 13 . It is preferable to make the heat exchanger 40 abut against the inner wall of the blower body 10 . The fan 50 is installed in the air supply body 10 and is located in front of the heat exchanger 40, and is used to promote the indoor air to enter the air supply body 10 through the air inlet 13, so that it can complete the heat exchange with the heat exchanger 40 to form a heat exchange air flow, and then The heat exchange air flow is blown upwards, ie, the deflector 30 . This arrangement of the heat exchanger 40 and the fan 50 can increase the contact area between the surface of the heat exchanger 40 and the intake air flow, thereby improving its heat exchange efficiency. As shown in FIG. 4 , the fan 50 can be a single-suction centrifugal fan, so that its suction port faces the heat exchanger. Alternatively, the fan 50 can also be a double-suction centrifugal fan with a larger suction volume, and one of its two suction ports faces the heat exchanger.

As shown in FIG. 4 , the vertical air conditioner indoor unit 100 may further include an upper partition 21 and a lower partition 22 . The upper partition plate 21 and the lower partition plate 22 are arranged in the air supply body 10 at intervals up and down, so as to divide the internal space of the air supply body 10 into the high pressure chamber 201 located above the upper partition plate 21 and the upper partition plate 21 and the lower partition plate. 22 between the low pressure chamber 202 . Both the heat exchanger 40 and the fan 50 are located in the low pressure chamber 202 . A vent 211 connected to the air outlet of the fan 50 is opened on the upper partition plate 21 . In this embodiment, the upper partition plate 21 is used to separate the suction and exhaust spaces of the fan 50, the low-pressure chamber 202 is used as the suction chamber, and the high-pressure chamber 201 is used as the exhaust chamber. Returning to the suction side, it is sucked into the fan 50 again, causing the suction efficiency of the fan 50 to decrease.

By now, those skilled in the art will recognize that, although various exemplary embodiments of the present invention have been illustrated and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

A vertical air conditioner indoor unit, comprising:

The air supply body is provided with an air supply port on the front side, the air supply port is an oval with a length direction parallel to the vertical direction, and the inner wall of the air supply body adjacent to the air supply port is a flow cross section gradually along the airflow direction. smaller tapered shape;

The air guide is arranged on the rear side of the air supply port, and includes a front end surface and two first air guide surfaces and two second air guide surfaces extending backward from the upper and lower sides and the lateral sides of the front end surface respectively. , the front-view outer contour of the front end surface is an oval vertically arranged in the length direction;

The air guide member and the tapered part of the air supply body define an annular air outlet gap, and the air guide member is used to guide the air flow to the annular air outlet gap, so that the air flow can pass through the inner wall of the air air supply body. Under the guidance of the air flow, the air outlet is gradually blown out of the air supply port in the direction of the center of the air flow; and

During the process of extending from the rear to the front, each of the first air guide surfaces gradually moves away from the central horizontal symmetry plane of the air guide element, and includes a concave first arc-shaped segment and an outward convex second arc segment that are connected in sequence. arc segment;

During the process of extending from rear to front, each of the second flow guide surfaces gradually moves away from the central longitudinal vertical symmetry plane of the flow guide member, and includes a concave third arc-shaped segment, a convex A fourth arcuate segment and a convex fifth arcuate segment.
The vertical air conditioner indoor unit according to claim 1, wherein

The radius of the second arcuate segment is greater than that of the first arcuate segment.
The vertical air conditioner indoor unit according to claim 2, wherein

The ratio of the radii of the second arcuate segment to the first arcuate segment is between 1.5 and 2.
The vertical air conditioner indoor unit according to claim 1, wherein

The radius of the third arcuate segment is smaller than that of the fourth arcuate segment and greater than the radius of the fifth arcuate segment.
The vertical air conditioner indoor unit according to claim 4, wherein

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 arcuate segment to the fifth arcuate segment is between 8 and 12.
The vertical air conditioner indoor unit according to claim 1, wherein

In the section obtained by cutting the flow guide with a longitudinal vertical plane, the outer contour of the front end surface sequentially includes a convex upper arc section, a middle vertical section and a convex lower arc section from top to bottom. ;and

the ratio of the length of the middle vertical section to the radius of the upper arcuate section is between 1.6 and 2.3; and

The ratio of the length of the middle vertical section to the radius of the lower arcuate section is between 1.6 and 2.3.
The vertical air conditioner indoor unit according to claim 1, wherein

In a cross section obtained by cutting the flow guide in a horizontal plane, the outer contour of the front end surface includes a connecting convex sixth arc segment and a convex seventh arc segment.
The vertical air conditioner indoor unit according to claim 1, wherein

The ratio of the width of the narrowest part of the annular air outlet gap to the width of the air guide is less than 0.6.
The vertical air conditioner indoor unit according to claim 1, further comprising:

A driving mechanism, which is installed on the air supply body, is used to support the air guide member and drive the air guide member to translate back and forth, so as to open and close the air supply port or adjust the air outlet area of the annular air outlet gap.
The vertical air conditioner indoor unit according to claim 1, wherein

The air supply body is configured such that the upward angle of the airflow of the bottom section of the annular air outlet gap is greater than the downward inclination angle of the airflow of the top section thereof, so that the airflow of the bottom section of the annular air outlet gap drives the airflow of the remaining sections. Together they flow upward and upward.