Vertical cabinet type air conditioner

Abstract

The utility model provides a vertical cabinet type air conditioner. The air conditioner comprises a shell, a first air duct, a heat exchanger and a second air duct. The first air channel is formed in the machine shell. A first air inlet and a first air outlet are formed in the two ends of the first air channel. The first air inlet and the first air outlet are both formed in the first side wall of the machine shell. A first wind wheel is arranged in the first air channel and divides the first air channel into a first air inlet section located on the upstream of the first wind wheel and a first air outlet section located on the downstream of the first wind wheel. The heat exchanger is vertically arranged in the first air inlet section. The second air channel is formed in the machine shell. A second air inlet and a second air outlet are formed in the two ends of the second air channel. The second air inlet is formed in the first side wall and located on the lower side of the first air inlet. The second air outlet is located in the first air inlet section and located in the side, away from the first wind wheel, of the heat exchanger. And a first fan is arranged in the second air duct. According to the air conditioner, the indoor temperature layering condition can be improved, and the effect of improving the user experience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, and particularly relates to a floor-standing air conditioner. Background Art

[0002] For a floor-standing air conditioner embedded in a furniture cabinet (such as a kitchen cabinet or a TV cabinet), since its left and right sides and the rear side are blocked by the furniture cabinet, it is difficult to form effective return air channels on the left and right sides and the rear side. Usually, the air inlet and the air outlet are both arranged on the front panel. In the related art, usually only one air inlet is provided, and it is not lower than the air outlet. When the air conditioner is heating, the air inlet is not easy to suck in the relatively low-temperature air at the bottom layer of the indoor space into the air conditioner for heating, which aggravates the indoor temperature stratification, resulting in the user having a hot head and cold feet and a poor use experience. Content of the Utility Model

[0003] In view of the above problems, the present utility model is proposed to provide a floor-standing air conditioner that overcomes or at least partially solves the above problems, aiming to solve the problem that the existing air conditioner is prone to aggravating indoor temperature stratification during heating, resulting in a poor use experience for users.

[0004] Specifically, the present utility model provides the following technical solutions:

[0005] A floor-standing air conditioner includes a housing, a first air duct, a heat exchanger, and a second air duct.

[0006] The first air duct is formed inside the housing. The two ends of the first air duct are provided with a first air inlet and a first air outlet. Both the first air inlet and the first air outlet are opened on the first side wall of the housing. A first air wheel is arranged inside the first air duct, and the first air wheel divides the first air duct into a first air inlet section upstream of the first air wheel and a first air outlet section downstream of the first air wheel.

[0007] The heat exchanger is arranged vertically inside the first air inlet section.

[0008] The second air duct is formed inside the housing. The two ends of the second air duct are provided with a second air inlet and a second air outlet. The second air inlet is opened on the first side wall and is located below the first air inlet. The second air outlet is located inside the first air inlet section and on the side of the heat exchanger away from the first air wheel. A first fan is arranged inside the second air duct.

[0009] Optionally, the first air wheel is a cross-flow air wheel, and the axis of the first air wheel extends vertically. The upper end of the first air wheel is coaxially driven and connected to a first motor.

[0010] The first fan is a centrifugal fan or an axial flow fan.

[0011] Optionally, on the projection of the cross-section of the first wind wheel, the minimum distance between the second air outlet and the axis of the first wind wheel is greater than the minimum distance between the first air inlet and the axis of the first wind wheel.

[0012] Optionally, the second air inlet is spaced below the first air inlet.

[0013] The first fan is located below the heat exchanger. The second air outlet is located above the lower end of the heat exchanger.

[0014] Optionally, the first fan is a centrifugal fan, and the inlet side of the first fan opens downward.

[0015] The second air outlet opens upward. The distance between the second air outlet and the lower end of the heat exchanger is less than 1 / 4 of the height of the heat exchanger.

[0016] Optionally, the minimum distance between the second air outlet and the heat exchanger is greater than or equal to 40 mm.

[0017] Optionally, the heat exchanger includes a first heat exchange section and a second heat exchange section that form an angle with each other. The distance from the end of the second heat exchange section away from the first air inlet to the first air inlet is greater than the distance from the end of the first heat exchange section away from the first air inlet to the first air inlet.

[0018] The distance between the first heat exchange section and the axis of the first wind wheel is less than the distance between the second heat exchange section and the axis of the first wind wheel.

[0019] On the projection of the cross-section of the first wind wheel, the first heat exchange section is located between the first wind wheel and the first air inlet, and the second heat exchange section is located between the first wind wheel and the second air outlet.

[0020] Optionally, the heat exchanger includes a first heat exchange section and a second heat exchange section that form an angle with each other. The distance from the end of the second heat exchange section away from the first air inlet to the first air inlet is greater than the distance from the end of the first heat exchange section away from the first air inlet to the first air inlet.

[0021] On the projection of the cross-section of the first wind wheel, the angle between the first heat exchange section and the first air inlet is 0 to 15 degrees, and the angle between the second heat exchange section and the first air inlet is 75 to 90 degrees. And the first heat exchange section is located between the first wind wheel and the first air inlet, and the second heat exchange section is located between the first wind wheel and the second air outlet.

[0022] Optionally, the heat exchanger includes a first heat exchange section and a second heat exchange section that form an angle with each other. The distance from the end of the second heat exchange section far from the first air inlet to the first air inlet is greater than the distance from the end of the first heat exchange section far from the first air inlet to the first air inlet.

[0023] On the projection of the cross-section of the first wind wheel, the minimum distance from the second air outlet to the first air inlet is greater than the distance from the end of the first heat exchange section far from the first air inlet to the first air inlet. And the first heat exchange section is between the first wind wheel and the first air inlet, and the second heat exchange section is between the first wind wheel and the second air outlet.

[0024] Optionally, the first side wall is a front panel.

[0025] The height of the first air inlet is greater than the width. The height of the first air outlet is greater than the width. The width of the first air outlet is less than the width of the first air inlet.

[0026] For the floor-standing air conditioner of the present invention, by providing a second air inlet below the first air inlet, the first fan provided in the second air duct can suck the air at the bottom from the second air inlet, transport it to the upstream of the heat exchanger, and after heat exchange and temperature adjustment, blow it out through the first air outlet under the action of the first wind wheel. When the air conditioner is heating, the relatively low-temperature air can be sucked into the air conditioner and heat-exchanged to increase the temperature, thereby improving the indoor temperature stratification and achieving the effect of improving the user experience.

[0027] On the other hand, by providing the second air duct and the first fan, the air inlet flow rate of the air conditioner of the present invention is increased, and the air conditioner can be supplied with supplementary air, which can make up for the air volume loss caused by the large change in the air flow direction when the air inlet and the air outlet are on the same side of the air conditioner, and achieve the effect of increasing the air outlet flow rate and the air supply distance of the air conditioner.

[0028] Based on the following detailed description of the specific embodiments of the present invention in conjunction with the drawings, those skilled in the art will more clearly understand the above and other objects, advantages and features of the present invention. Description of the Drawings

[0029] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0030] Figure 1 is a schematic front view of a floor-standing air conditioner according to an embodiment of the present invention;

[0031] Figure 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present utility model;

[0032] Figure 3 is Figure 1 a schematic cross-sectional view along the A axis in

[0033] Figure 4 is a schematic cross-sectional view of the air conditioner according to an embodiment of the present utility model, taken along the plane where the axes of the first impeller and the first fan are located;

[0034] Figure 5 is a schematic structural diagram of the first impeller, the first fan, and the first motor of the air conditioner according to an embodiment of the present utility model.

[0035] List of reference numerals:

[0036] 10, housing; 11, first side wall; 21, first air duct; 211, first air inlet section; 212, first air outlet section; 22, first air inlet; 23, first air outlet; 24, first impeller; 25, first motor; 30, heat exchanger; 31, first heat exchange section; 32, second heat exchange section; 41, second air duct; 42, second air inlet; 43, second air outlet; 44, first fan; 441, inlet side of the first fan; 442, second impeller; 443, second motor. Detailed implementation manners

[0037] The floor-standing air conditioner according to the embodiment of the present utility model will be described below with reference to Figures 1 to 5 In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0038] Unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", "coupled", "fixed", "coupled", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to specific circumstances.

[0039] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", or "under" the second feature may be the first feature being directly below or obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0040] In the description of this embodiment, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] Figure 1 is a schematic front view of a floor-standing air conditioner according to an embodiment of the present utility model, as Figure 1 shown, and with reference to Figures 2 - 5 . The embodiment of the present utility model provides a floor-standing air conditioner, including a cabinet 10, a first air duct 21, a heat exchanger 30, and a second air duct 41.

[0042] The first air duct 21 is formed inside the cabinet 10. Both ends of the first air duct 21 are provided with a first air inlet 22 and a first air outlet 23. Both the first air inlet 22 and the first air outlet 23 are opened on the first side wall 11 of the cabinet 10. A first air wheel 24 is provided inside the first air duct 21, and the first air wheel 24 divides the first air duct 21 into a first air inlet section 211 upstream of the first air wheel 24 and a first air outlet section 212 downstream of the first air wheel 24.

[0043] The heat exchanger 30 is vertically arranged in the first air inlet section 211.

[0044] The second air duct 41 is formed inside the housing 10. The two ends of the second air duct 41 are provided with a second air inlet 42 and a second air outlet 43. The second air inlet 42 is opened on the first side wall 11 and is located below the first air inlet 22. The second air outlet 43 is located in the first air inlet section 211 and is on the side of the heat exchanger 30 away from the first air wheel 24. A first fan 44 is arranged in the second air duct 41.

[0045] In this embodiment, the first air wheel 24 can be a cross-flow air wheel, a centrifugal air wheel, an axial-flow air wheel, etc. The first air wheel 24 can be drivingly connected to a motor and is used to suck the air in the first air inlet section 211 into the first air wheel 24 and blow it to the first air outlet section 212 and then blow it out through the first air outlet 23. The first fan 44 can be a cross-flow fan, a centrifugal fan, an axial-flow fan, etc. and is used to suck the air at the second air inlet 42 into the second air duct 41 and blow it to the second air outlet 43.

[0046] There are two main sources of the air flow in the first air inlet section 211: a part of the air enters the first air inlet section 211 through the first air inlet 22 under the suction of the first air wheel 24. Another part of the air enters the second air duct 41 through the second air inlet 42 under the suction of the first fan 44, and then flows out of the second air outlet 43 and enters the first air inlet section 211 under the combined action of the blowing force of the first fan 44 and the suction of the first air wheel 24.

[0047] The first air inlet 22 and the first air outlet 23 can be arranged on the first side wall 11 at intervals in the horizontal direction. The first side wall 11 can be the front side wall, the left side wall or the right side wall of the air conditioner. For example, the first side wall 11 can be the front side wall, the first air inlet 22 is arranged on the left side of the first side wall 11, and the first air outlet 23 is arranged on the right side of the first side wall 11.

[0048] The heat exchanger 30 is vertically arranged in the first air inlet section 211 and is used for regulating the temperature, humidity, etc. of the passing air flow.

[0049] In this embodiment, the second air inlet 42 is located below the first air inlet 22, and the air at a relatively lower position can be sucked in from the second air inlet 42, transported to the upstream of the heat exchanger 30, and blown out through the first air outlet 23 under the action of the first air wheel 24 after heat exchange and temperature regulation.

[0050] In actual use, when the air conditioner is heating, the first fan 44 can suck the air with a relatively lower temperature into the air conditioner and perform heat exchange and cooling, thereby improving the situation of indoor temperature stratification and achieving the effect of improving the user experience.

[0051] It should be understood that when the air inlet and outlet of the air conditioner are on the same side of the casing 10, the air inlet direction and the air outlet direction form an angle of approximately 180 degrees, with a large change in the air duct direction. When the air flow changes direction, a large amount of air volume loss will occur, resulting in a small air outlet volume and a short air supply distance of the air conditioner, making it difficult to meet the user's needs.

[0052] For the air conditioner of the present utility model, by providing the second air duct 41 and the first fan 44, the air inlet flow of the air conditioner can be increased to supplement the air inlet of the air conditioner, thereby making up for the air volume loss caused by the too large change in the air duct direction when the air inlet and outlet are on the same side of the air conditioner, achieving the effect of increasing the air outlet flow and the air supply distance of the air conditioner.

[0053] In some embodiments of the air conditioner of the utility model, such as Figure 4 shown, the first air wheel 24 is a cross-flow air wheel, and the axis of the first air wheel 24 extends vertically. The upper end of the first air wheel 24 is coaxially driven and connected to a first motor 25.

[0054] The first fan 44 is a centrifugal fan or an axial-flow fan, and may include a second air wheel 442 and a second motor 443.

[0055] The cross-flow air wheel can generate a large amount of air volume and has uniform air outlet, which is suitable for the case where the floor-standing air conditioner has a large demand for air volume.

[0056] In this embodiment, the output shaft of the first motor 25 can be coaxially and fixedly connected to the rotating shaft at the upper end of the first air wheel 24. On the one hand, this transmission connection method has a high transmission efficiency, and on the other hand, it can prevent the condensate water on the first air wheel 24 from entering the first motor 25. The second motor 443 can be coaxially and fixedly connected to the first fan 44 to drive the first fan 44 to rotate.

[0057] In this embodiment, the first air wheel 24 and the first fan 44 are each connected to an independent motor, and their respective rotation speeds can be independently adjusted, thereby changing the ratio of the air flow rates of the two air wheels. Under different working conditions, the first fan 44 is made to cooperate with the first air wheel 24 as much as possible to provide the maximum air volume and the maximum air supply distance for the air conditioner.

[0058] The first fan 44 can be a centrifugal fan, such as Figure 4 shown. The centrifugal fan has a small volume, which can reduce the overall volume of the air conditioner. The second motor 443 can be integrally provided in the volute of the centrifugal air wheel. The inlet side 441 of the first fan can face the position of the second air inlet 42, and a duct can be provided on the outlet side of the first fan 44 to guide the air flow to the first air inlet section 211.

[0059] The first fan 44 can also be an axial-flow fan. The axial-flow air wheel has a simple structure and is easy to set. In actual use, reference can be made to Figure 4As shown, the inlet of the air duct can be set and connected to the outlet side of the axial flow impeller.

[0060] In some embodiments of the utility model air conditioner, such as Figure 3 As shown, on the projection of the cross-section of the first impeller 24, the minimum distance L1 between the second air outlet 43 and the axis of the first impeller 24 is greater than the minimum distance L2 between the first air inlet 22 and the axis of the first impeller 24.

[0061] The suction negative pressure formed by the first impeller 24 in the first air inlet section 211 is used to suck air flow into the first impeller 24. Generally speaking, the magnitude of the suction negative pressure is negatively correlated with the distance from the first impeller 24 (specifically, negatively correlated with the distance from the eccentric vortex formed by the first impeller 24), that is, the farther away from the first impeller 24, the smaller the suction negative pressure, and the smaller the suction influence of the first impeller 24.

[0062] In this embodiment, the second air outlet 43 is farther away from the first impeller 24 than the first air inlet 22, that is, the second air outlet 43 is in a low negative pressure area. In the low negative pressure area, the air flow is less affected by the suction of the first impeller 24 and has a slower flow rate, so it is also called an inefficient air area. By arranging the second air outlet 43 in the inefficient air area, the air flow in the second air duct 41 is injected into the inefficient air area under the blowing force of the first fan 44, which can increase the air pressure in the inefficient air area and promote the air flow in the inefficient air area to flow quickly towards the first impeller 24. That is to say, the flow rate in the inefficient air area can be increased, thereby increasing the suction air flow rate of the first impeller 24 and further increasing the air outlet flow rate.

[0063] In some embodiments of the utility model air conditioner, such as Figures 2 - 5 As shown, the second air inlet 42 is arranged at intervals on the lower side of the first air inlet 22.

[0064] The first fan 44 is located on the lower side of the heat exchanger 30. The second air outlet 43 is located on the upper side of the lower end of the heat exchanger 30.

[0065] The second air inlet 42 and the first air inlet 22 can be arranged adjacent to each other or at intervals. When arranged at intervals, it can prevent the second air inlet 42 from sucking the air flow near the first air inlet 22 and affecting the air inlet flow rate of the first air inlet 22.

[0066] The first fan 44 is located on the lower side of the heat exchanger 30. On the one hand, it can make full use of the idle space on the lower side of the heat exchanger 30. On the other hand, the heat exchanger 30 can be used as a fixed support to suspend and install the first fan 44 on the heat exchanger 30, saving manufacturing costs.

[0067] The second air outlet 43 is located above the lower end of the heat exchanger 30, and can send the air flow flowing in from the second air inlet 42 and the second air duct 41 to the first air inlet section 211, and then directly flow into the heat exchanger 30 for heat exchange and temperature adjustment. When the air conditioner is heating, the air flow in the second air duct 41 may be relatively low-temperature air flow. If the second air outlet 43 is located below the lower end of the heat exchanger 30, the relatively low-temperature air flow may stay below the heat exchanger 30, weakening the influence on increasing the flow rate in the low-efficiency air area.

[0068] In some embodiments of the air conditioner of the utility model, such as Figures 4 - 5 shown, the first fan 44 is a centrifugal fan, and the inlet side 441 of the first fan opens upward.

[0069] The second air outlet 43 opens upward. The distance L3 between the second air outlet 43 and the lower end of the heat exchanger 30 is less than 1 / 4 of the height L4 of the heat exchanger 30.

[0070] In this embodiment, the air flow enters the second air duct 41 from the second air inlet 42, enters the first fan 44 upward through the inlet side 441 of the first fan, and then flows out upward through the outlet side of the first fan 44, the air guide pipe and the second air outlet 43. In this way, from the second air inlet 42 to the second air outlet 43, the air flow turns less and the air loss is smaller.

[0071] Generally speaking, the lower end of the first air inlet 22 is flush with or not much different from the lower end of the heat exchanger 30. When the second air duct 41 is not provided, due to the obstruction of the lower end of the first air inlet 22, the air inlet flow rate in the area near the lower end of the heat exchanger 30 is usually less than that in the middle area of the heat exchanger 30. When refrigerating or heating, the air flow flowing through the area near the lower end of the heat exchanger 30 is relatively small, resulting in waste of the heat exchange capacity in the area near the lower end of the heat exchanger 30.

[0072] In this embodiment, by setting L3 less than L4 / 4, the air flow flowing out through the second air outlet 43 can pass through the area near the lower end of the heat exchanger 30. That is to say, the heat exchange capacity in the area near the lower end of the heat exchanger 30 can be fully utilized, improving the refrigerating and heating capacities of the air conditioner and the energy efficiency of the air conditioner.

[0073] In some embodiments of the air conditioner of the utility model, such as Figure 3 shown, the minimum distance L15 between the second air outlet 43 and the heat exchanger 30 is greater than or equal to 40 mm.

[0074] In this embodiment, the second air outlet 43 is arranged far away from the heat exchanger 30, which can prevent the air flow blown out from the second air outlet 43 from interfering and colliding with the air flow entering from the first air inlet 22 near the heat exchanger 30, affecting the heat exchange efficiency of the heat exchanger 30.

[0075] In some embodiments of the utility model air conditioner, such as Figure 3 As shown, the heat exchanger 30 includes a first heat exchange section 31 and a second heat exchange section 32 that form an angle with each other. The distance L5 from the end of the second heat exchange section 32 far from the first air inlet 22 to the first air inlet 22 is greater than the distance L6 from the end of the first heat exchange section 31 far from the first air inlet 22 to the first air inlet 22.

[0076] The distance L7 from the first heat exchange section 31 to the axis of the first impeller 24 is less than the distance L8 from the second heat exchange section 32 to the axis of the first impeller 24.

[0077] In the projection of the cross-section of the first impeller 24, the first heat exchange section 31 is between the first impeller 24 and the first air inlet 22, and the second heat exchange section 32 is between the first impeller 24 and the second air outlet 43.

[0078] In this embodiment, the heat exchanger 30 is formed by splicing the first heat exchange section 31 and the second heat exchange section 32 that form an angle with each other, and a transition fillet can be provided at the connection between the first heat exchange section 31 and the second heat exchange section 32.

[0079] The first heat exchange section 31 is close to the first air inlet 22 and close to the first impeller 24, that is to say, the first heat exchange section 31 is in the high-efficiency wind area (compared with the low-efficiency wind area). The second heat exchange section 32 is far from the first air inlet 22 and far from the first impeller 24, that is to say, the second heat exchange section 32 is at least partially in the low-efficiency wind area. When refrigerating or heating, the airflow flowing through the second heat exchange section 32 is relatively small, and the heat exchange capacity of the second heat exchange section 32 may be wasted.

[0080] In this embodiment, by arranging the second air outlet 43 in the low-efficiency wind area and on the outside of the second heat exchange section 32, the airflow flow rate through the second heat exchange section 32 can be increased, the heat exchange capacity of the second heat exchange section 32 can be fully utilized, thereby improving the refrigeration and heating capabilities of the air conditioner and improving the energy efficiency of the air conditioner.

[0081] In some embodiments of the utility model air conditioner, such as Figure 3 As shown, the heat exchanger 30 includes a first heat exchange section 31 and a second heat exchange section 32 that form an angle with each other. The distance L5 from the end of the second heat exchange section 32 far from the first air inlet 22 to the first air inlet 22 is greater than the distance L6 from the end of the first heat exchange section 31 far from the first air inlet 22 to the first air inlet 22.

[0082] In the projection of the cross-section of the first impeller 24, the angle α between the first heat exchange section 31 and the first air inlet 22 is 0 to 15 degrees, and the angle β between the second heat exchange section 32 and the first air inlet 22 is 75 to 90 degrees. And the first heat exchange section 31 is between the first impeller 24 and the first air inlet 22, and the second heat exchange section 32 is between the first impeller 24 and the second air outlet 43.

[0083] In this embodiment, the first heat exchange section 31 is in the high-efficiency wind area, and the second heat exchange section 32 is at least partially in the low-efficiency wind area. By setting the second air outlet 43 in the low-efficiency wind area and on the outside of the second heat exchange section 32, the air flow rate through the second heat exchange section 32 can be increased, the heat exchange capacity of the second heat exchange section 32 can be fully utilized, thereby improving the refrigeration and heating capacities of the air conditioner and improving the energy efficiency of the air conditioner.

[0084] The included angle α between the first heat exchange section 31 and the first air inlet 22 is 0 to 15 degrees, which can prompt the air flow entering from the first air inlet 22 to flow towards the lateral end of the first heat exchange section 31 ( Figure 3 the right side in the figure), so as to fully utilize the heat exchange capacity of the lateral end of the first heat exchange section 31 and avoid waste of heat exchange capacity.

[0085] The included angle β between the second heat exchange section 32 and the first air inlet 22 is 75 to 90 degrees, which can prompt the air flow entering from the first air inlet 22 to flow towards the lateral end of the second heat exchange section 32 ( Figure 3 the rear side in the figure), so as to fully utilize the heat exchange capacity of the lateral end of the second heat exchange section 32 and avoid waste of heat exchange capacity.

[0086] In some embodiments of the air conditioner of the utility model, as Figure 3 shown, the heat exchanger 30 includes a first heat exchange section 31 and a second heat exchange section 32 that form an included angle with each other. The distance L5 from the end of the second heat exchange section 32 far from the first air inlet 22 to the first air inlet 22 is greater than the distance L6 from the end of the first heat exchange section 31 far from the first air inlet 22 to the first air inlet 22.

[0087] On the projection of the cross-section of the first impeller 24, the minimum distance L9 from the second air outlet 43 to the first air inlet 22 is greater than the distance L6 from the end of the first heat exchange section 31 far from the first air inlet 22 to the first air inlet 22. And the first heat exchange section 31 is between the first impeller 24 and the first air inlet 22, and the second heat exchange section 32 is between the first impeller 24 and the second air outlet 43.

[0088] In this embodiment, the second air outlet 43 is at a position far from the first impeller 24 and far from the first air inlet 22, that is, at the center of the low-efficiency wind area. Setting the second air outlet 43 here can, on the one hand, increase the air flow rate through the second heat exchange section 32, fully utilize the heat exchange capacity of the second heat exchange section 32, thereby improving the refrigeration and heating capacities of the air conditioner and improving the energy efficiency of the air conditioner. On the other hand, it can reduce or avoid the interference and collision between the air flow flowing out from the second air outlet 43 and the air flow entering from the first air inlet 22, thereby causing additional wind loss.

[0089] In some embodiments of the air conditioner of the utility model, as Figures 1 - 3As shown, the first side wall 11 is the front panel.

[0090] The height of the first air inlet 22 is greater than the width L13. The height of the first air outlet 23 is greater than the width L14. The width L14 of the first air outlet 23 is less than the width L13 of the first air inlet 22.

[0091] In this embodiment, the first air inlet 22, the second air inlet 42 and the first air outlet 23 are all arranged on the front panel, which is convenient for embedding and installing the air conditioner in a furniture cabinet (such as a kitchen cabinet, a TV cabinet), thereby improving the consistency of the home decoration style.

[0092] Both the first air inlet 22 and the first air outlet 23 extend vertically, which can make full use of the space in front of the air conditioner and increase the air inlet area and the air outlet area.

[0093] In this embodiment, the width L14 of the first air outlet 23 is less than the width L13 of the first air inlet 22. In this way, the air inlet area can be increased, the air inlet speed can be reduced, and the air outlet speed of the air conditioner can be increased, thereby increasing the air supply distance of the air conditioner.

[0094] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A floor-standing air conditioner, characterized in that, Comprising: A housing; A first air duct formed within the housing, with a first air inlet and a first air outlet provided at both ends of the first air duct; Both the first air inlet and the first air outlet are opened on the first side wall of the housing; a first air wheel is provided within the first air duct, and the first air wheel divides the first air duct into a first air inlet section upstream of the first air wheel and a first air outlet section downstream of the first air wheel; A heat exchanger vertically arranged within the first air inlet section; A second air duct formed within the housing, with a second air inlet and a second air outlet provided at both ends of the second air duct; the second air inlet is opened on the first side wall and is located below the first air inlet; the second air outlet is within the first air inlet section and is located on the side of the heat exchanger away from the first air wheel; a first fan is provided within the second air duct.

2. The air conditioner according to claim 1, wherein The first air wheel is a cross-flow air wheel, and the axis of the first air wheel extends vertically; the upper end of the first air wheel is coaxially and drivingly connected to a first motor; The first fan is a centrifugal fan or an axial flow fan.

3. The air conditioner according to claim 2, wherein In the projection of the cross-section of the first air wheel, the minimum distance between the second air outlet and the axis of the first air wheel is greater than the minimum distance between the first air inlet and the axis of the first air wheel.

4. The air conditioner according to claim 3, wherein The second air inlets are arranged at intervals below the first air inlet; The first fan is located below the heat exchanger; the second air outlet is located above the lower end of the heat exchanger.

5. The air conditioner according to claim 4, wherein The first fan is a centrifugal fan, and the inlet side of the first fan opens downward; The second air outlet opens upward; the distance between the second air outlet and the lower end of the heat exchanger is less than 1 / 4 of the height of the heat exchanger.

6. The air conditioner according to claim 5, wherein The minimum distance between the second air outlet and the heat exchanger is greater than or equal to 40 mm.

7. The air conditioner according to claim 3, wherein The heat exchanger includes a first heat exchange section and a second heat exchange section that form an angle with each other; the distance from the end of the second heat exchange section away from the first air inlet to the first air inlet is greater than the distance from the end of the first heat exchange section away from the first air inlet to the first air inlet; The distance between the first heat exchange section and the axis of the first air wheel is less than the distance between the second heat exchange section and the axis of the first air wheel; In the projection of the cross-section of the first air wheel, the first heat exchange section is located between the first air wheel and the first air inlet, and the second heat exchange section is located between the first air wheel and the second air outlet.

8. The air conditioner according to claim 3, wherein The heat exchanger includes a first heat exchange section and a second heat exchange section that form an angle with each other; the distance from the end of the second heat exchange section away from the first air inlet to the first air inlet is greater than the distance from the end of the first heat exchange section away from the first air inlet to the first air inlet; In the projection of the cross-section of the first air wheel, the angle between the first heat exchange section and the first air inlet is 0 to 15 degrees, and the angle between the second heat exchange section and the first air inlet is 75 to 90 degrees; and the first heat exchange section is between the first air wheel and the first air inlet, and the second heat exchange section is between the first air wheel and the second air outlet.

9. The air conditioner according to claim 3, wherein The heat exchanger includes a first heat exchange section and a second heat exchange section that form an angle with each other; the distance from the end of the second heat exchange section away from the first air inlet to the first air inlet is greater than the distance from the end of the first heat exchange section away from the first air inlet to the first air inlet; In the projection of the cross-section of the first air wheel, the minimum distance from the second air outlet to the first air inlet is greater than the distance from the end of the first heat exchange section away from the first air inlet to the first air inlet; and the first heat exchange section is between the first air wheel and the first air inlet, and the second heat exchange section is between the first air wheel and the second air outlet.

10. The air conditioner according to claim 3, wherein The first side wall is the front panel; The height of the first air inlet is greater than the width; the height of the first air outlet is greater than the width; the width of the first air outlet is less than the width of the first air inlet.

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