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 upper 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 second wind wheel 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, in particular 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 an effective air return channel 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 higher than the air outlet. When the air conditioner is refrigerating, the air inlet is not easy to suck the relatively warmer air in the upper layer of the indoor space into the air conditioner for cooling, which exacerbates the indoor temperature stratification, resulting in the user having a hot head and cold feet and a poor use experience. Summary 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 the above problems or at least partially solves the above problems, aiming to solve the problem that the existing air conditioner is prone to exacerbate the indoor temperature stratification during refrigeration, 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, and a first air inlet and a first air outlet are provided at both ends of the first air duct. The first air inlet and the first air outlet are both 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, and a second air inlet and a second air outlet are provided at both ends of the second air duct. The second air inlet is opened on the first side wall and is located above 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 second air wheel 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 second wind wheel is a centrifugal wind wheel or an axial flow wind wheel, and the second wind wheel is coaxially and drivingly connected to a second motor.

[0011] Optionally, the first wind wheel is a cross-flow wind wheel, and the axis of the first wind wheel extends vertically. The upper end of the first wind wheel is coaxially and drivingly connected to a first motor.

[0012] The second wind wheel is a centrifugal wind wheel or an axial flow wind wheel, and the axis of the second wind wheel is parallel to the axis of the first wind wheel. The first motor is also drivingly connected to the second wind wheel through a transmission mechanism.

[0013] Optionally, in 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.

[0014] Optionally, the second air inlet is arranged at intervals on the upper side of the first air inlet.

[0015] The second wind wheel is located above the heat exchanger. The second air outlet is located below the upper end of the heat exchanger.

[0016] Optionally, the second wind wheel is a centrifugal wind wheel, and the inlet side of the second wind wheel opens upward.

[0017] The second air outlet opens downward. The distance between the second air outlet and the upper end of the heat exchanger is less than 1 / 4 of the height of the heat exchanger.

[0018] 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.

[0019] 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.

[0020] In 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.

[0021] 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.

[0022] On the projection of the cross-section of the first wind wheel, the included angle between the first heat exchange section and the first air inlet is 0 to 15 degrees, and the included 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.

[0023] Optionally, the heat exchanger includes a first heat exchange section and a second heat exchange section that form an included 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.

[0024] 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 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.

[0025] Optionally, the first side wall is the front panel.

[0026] 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.

[0027] For the floor-standing air conditioner of the present invention, by providing a second air inlet on the upper side of the first air inlet, the second wind wheel provided in the second air duct can suck the air at a relatively higher position from the second air inlet, transport it to the upstream of the heat exchanger, and blow it out through the first air outlet under the action of the first wind wheel after heat exchange and temperature adjustment. When the air conditioner is cooling, the air with a relatively higher temperature can be sucked into the air conditioner and heat-exchanged to lower the temperature, thereby improving the indoor temperature stratification and achieving the effect of improving the user experience.

[0028] On the other hand, the air conditioner of the present invention increases the air inlet flow rate of the air conditioner by providing the second air duct and the second wind wheel, and can supply air to the air conditioner for air replenishment, 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.

[0029] Those skilled in the art will understand the above and other objects, advantages and features of the present invention more clearly according to the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an illustrative rather than 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:

[0031] Figure 1 is a schematic front view of a floor-standing air conditioner according to an embodiment of the present invention;

[0032] Figure 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

[0033] Figure 3 is Figure 1 a schematic cross-sectional view along the A-axis in;

[0034] Figure 4 is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention taken along the plane where the axes of the first impeller and the second impeller are located;

[0035] Figure 5 is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention taken along the plane where the axes of the first impeller and the second impeller are located;

[0036] Figure 6 is a schematic structural diagram of the first impeller, the second impeller, the first motor, and the transmission mechanism of an air conditioner according to an embodiment of the present invention.

[0037] List of reference numerals:

[0038] 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; 26, transmission mechanism; 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, second impeller; 441, inlet side of the second impeller; 45, second motor. Detailed embodiments

[0039] The following will refer to Figures 1 to 6To describe the floor-standing air conditioner according to the embodiments of the present invention. In the description of the embodiments of the present invention, 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, 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 invention, 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.

[0040] Unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0041] In addition, in the description of the embodiments of the present invention, 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 in contact through other features therebetween. That is, in the description of the embodiments of the present invention, 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 is at a higher horizontal level 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 is at a lower horizontal level than the second feature.

[0042] In the description of the embodiments of the present invention, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 invention. 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 may be combined in a suitable manner in any one or more embodiments or examples.

[0043] Figure 1 is a schematic front view of a floor-standing air conditioner according to an embodiment of the present invention, asFigure 1 as shown in and referring to Figures 2 - 6 . An embodiment of the present utility model provides a floor-standing air conditioner, which includes a cabinet 10, a first air duct 21, a heat exchanger 30 and a second air duct 41.

[0044] The first air duct 21 is formed inside the cabinet 10. A first air inlet 22 and a first air outlet 23 are provided at both ends of the first air duct 21. 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. 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.

[0045] The heat exchanger 30 is vertically arranged inside the first air inlet section 211.

[0046] The second air duct 41 is formed inside the cabinet 10. A second air inlet 42 and a second air outlet 43 are provided at both ends of the second air duct 41. The second air inlet 42 is opened on the first side wall 11 and is located above the first air inlet 22. The second air outlet 43 is located inside the first air inlet section 211 and on the side of the heat exchanger 30 away from the first air wheel 24. A second air wheel 44 is provided inside the second air duct 41.

[0047] 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., 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 second air wheel 44 can be a cross-flow air wheel, a centrifugal air wheel, an axial-flow air wheel, 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.

[0048] 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 second air wheel 44, and then flows out of the second air outlet 43 under the combined action of the blowing force of the second air wheel 44 and the suction of the first air wheel 24 and enters the first air inlet section 211.

[0049] The first air inlet 22 and the first air outlet 23 can be horizontally spaced and arranged on the first side wall 11. 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.

[0050] The heat exchanger 30 is vertically arranged inside the first air inlet section 211 and is used to adjust the temperature, humidity, etc. of the passing air flow.

[0051] In this embodiment, the second air inlet 42 is located above the first air inlet 22, and can suck in the air at a relatively higher position from the second air inlet 42, convey it to the upstream of the heat exchanger 30, and after heat exchange and temperature adjustment, blow it out through the first air outlet 23 under the action of the first wind wheel 24.

[0052] In actual use, when the air conditioner is cooling, the second wind wheel 44 can suck in the air with a relatively higher temperature into the air conditioner for heat exchange and cooling, thereby improving the indoor temperature stratification and achieving the effect of enhancing the user experience.

[0053] It should be understood that when the air inlet and the air outlet of the air conditioner are on the same side of the cabinet 10, the air inlet direction and the air outlet direction form an angle of approximately 180°, with a large change in the air path direction. A large amount of air volume loss will occur when the air flow changes direction, resulting in a relatively small air outlet volume and a short air supply distance of the air conditioner, making it difficult to meet the user's needs.

[0054] The air conditioner of the present utility model can increase the air inlet flow rate of the air conditioner and supplement the air inlet by setting the second air duct 41 and the second wind wheel 44, thereby making up for the air volume loss caused by the too large change in the air path direction when the air inlet and the air outlet are on the same side of the air conditioner, and achieving the effect of increasing the air outlet flow rate and the air supply distance of the air conditioner.

[0055] In some embodiments of the air conditioner of the present utility model, as Figure 5 shown, the first wind wheel 24 is a cross-flow wind wheel, and the axis of the first wind wheel 24 extends vertically. The upper end of the first wind wheel 24 is coaxially and drivably connected to a first motor 25.

[0056] The second wind wheel 44 is a centrifugal wind wheel or an axial-flow wind wheel, and the second wind wheel 44 is coaxially and drivably connected to a second motor 45.

[0057] The cross-flow wind wheel can generate a relatively large air volume and has uniform air outlet, which is suitable for the situation where the vertical cabinet air conditioner has a large demand for air volume.

[0058] 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 wind wheel 24. On the one hand, this transmission connection method has a relatively high transmission efficiency, and on the other hand, it can prevent the condensate water on the first wind wheel 24 from entering the first motor 25. The second motor 45 can be coaxially and fixedly connected to the second wind wheel 44 for driving the second wind wheel 44 to rotate.

[0059] In this embodiment, the first wind wheel 24 and the second wind wheel 44 are each connected to an independent motor, and their rotational speeds can be independently adjusted, thereby changing the ratio of the air flow rates of the two wind wheels. Under different working conditions, the second wind wheel 44 is made to cooperate with the first wind wheel 24 as much as possible to provide the maximum air volume and the maximum air supply distance for the air conditioner.

[0060] The second wind wheel 44 can be a centrifugal wind wheel, such as Figure 5 shown. The centrifugal wind wheel has a relatively small volume and can be arranged offset from the first motor 25, reducing the overall volume of the air conditioner. The second motor 45 can be integrally arranged inside the volute of the centrifugal wind wheel. The inlet side of the centrifugal wind wheel can be oriented towards the position of the second air inlet 42, and a duct can be arranged on the outlet side of the centrifugal wind wheel to guide the air flow to the first air inlet section 211.

[0061] The second wind wheel 44 can also be an axial flow wind wheel. The axial flow wind wheel has a simple structure and is easy to arrange. During actual use, reference can be made to Figure 5 shown, and the inlet of the duct can be connected to the outlet side of the axial flow wind wheel.

[0062] In some embodiments of the air conditioner of the utility model, such as Figure 4 shown, the first wind wheel 24 is a cross-flow wind wheel, and the axis of the first wind wheel 24 extends vertically. The upper end of the first wind wheel 24 is coaxially driven and connected to the first motor 25.

[0063] The second wind wheel 44 is a centrifugal wind wheel or an axial flow wind wheel, and the axis of the second wind wheel 44 is parallel to the axis of the first wind wheel 24. The first motor 25 is also drivingly connected to the second wind wheel 44 through a transmission mechanism 26.

[0064] In this embodiment, the transmission mechanism 26 can be a belt transmission mechanism, a chain transmission mechanism, a gear transmission mechanism, etc. Figure 5 Illustrates the technical solution of the belt transmission mechanism. In this solution, the first motor 25 is a dual-shaft motor. The lower output shaft is coaxially and fixedly connected to the rotating shaft at the upper end of the first wind wheel 24, and the upper output shaft is coaxially and fixedly connected to a pulley. The upper end of the second wind wheel 44 is coaxially and fixedly connected to a pulley, and the two pulleys are connected by a transmission belt.

[0065] By arranging the transmission mechanism 26 between the first motor 25 and the second wind wheel 44, on the one hand, a single motor can be shared, reducing production costs. On the other hand, it can ensure that the rotational speed of the second wind wheel 44 is always proportional to the rotational speed of the first wind wheel 24, preventing energy consumption waste caused by mismatched flow rates between the two wind wheels.

[0066] The second wind wheel 44 can be a centrifugal wind wheel, such as Figure 5 shown. The centrifugal wind wheel has a relatively small volume and can be arranged offset from the first motor 25, reducing the overall volume of the air conditioner. The inlet side of the centrifugal wind wheel can be oriented towards the position of the second air inlet 42, and a duct can be arranged on the outlet side of the centrifugal wind wheel to guide the air flow to the first air inlet section 211.

[0067] The second wind wheel 44 can also be an axial flow wind wheel. The axial flow wind wheel has a simple structure and is easy to arrange. During actual use, reference can be made to Figure 5 shown, and the inlet of the duct can be connected to the outlet side of the axial flow wind wheel.

[0068] In some embodiments of the utility model air conditioner, such as Figure 3 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.

[0069] 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.

[0070] 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 second impeller 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 air flow in the inefficient air area can be increased, thereby increasing the suction air flow of the first impeller 24, and further increasing the air outlet flow.

[0071] In some embodiments of the utility model air conditioner, such as Figures 2 - 5 shown, the second air inlet 42 is arranged at intervals on the upper side of the first air inlet 22.

[0072] The second impeller 44 is located on the upper side of the heat exchanger 30. The second air outlet 43 is located on the lower side of the upper end of the heat exchanger 30.

[0073] 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 of the first air inlet 22.

[0074] The second impeller 44 is located on the upper side of the heat exchanger 30. On the one hand, it can make full use of the idle space on the upper side of the heat exchanger 30. On the other hand, the heat exchanger 30 can be used as a fixed support to install the second impeller 44 on the heat exchanger 30, saving manufacturing costs.

[0075] The second air outlet 43 is located on the lower side of the upper 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 cooling, the air flow in the second air duct 41 may be relatively high-temperature air flow. If the second air outlet 43 is located on the upper side of the upper end of the heat exchanger 30, the relatively high-temperature air flow may stay on the upper side of the heat exchanger 30, weakening the influence on increasing the air flow in the low-efficiency air area.

[0076] In some embodiments of the air conditioner of the utility model, such as Figures 4 - 6 shown, the second impeller 44 is a centrifugal impeller, and the inlet side 441 of the second impeller opens upward.

[0077] The second air outlet 43 opens downward. The distance L3 between the second air outlet 43 and the upper end of the heat exchanger 30 is less than 1 / 4 of the height L4 of the heat exchanger 30.

[0078] In this embodiment, the air flow enters the second air duct 41 from the second air inlet 42, enters the second impeller 44 downward through the inlet side 441 of the second impeller, and then flows out downward through the outlet side of the second impeller 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.

[0079] Generally speaking, the upper end of the first air inlet 22 is flush with or not much different from the upper end of the heat exchanger 30. When the second air duct 41 is not provided, due to the shielding of the upper end of the first air inlet 22, the air inflow in the area near the upper end of the heat exchanger 30 is usually less than that in the middle area of the heat exchanger 30. When cooling or heating, the air flow flowing through the area near the upper end of the heat exchanger 30 is relatively small, resulting in waste of the heat exchange capacity in the area near the upper end of the heat exchanger 30.

[0080] 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 upper end of the heat exchanger 30. That is to say, the heat exchange capacity in the area near the upper end of the heat exchanger 30 can be fully utilized, the cooling and heating capacities of the air conditioner are improved, and the energy efficiency of the air conditioner is improved.

[0081] In some embodiments of the air conditioner of the utility model, such 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 angle with each other. The distance L5 between the end of the second heat exchange section 32 far from the first air inlet 22 and the first air inlet 22 is greater than the distance L6 between the end of the first heat exchange section 31 far from the first air inlet 22 and the first air inlet 22.

[0082] The distance L7 between the first heat exchange section 31 and the axis of the first impeller 24 is less than the distance L8 between the second heat exchange section 32 and the axis of the first impeller 24.

[0083] On the projection of the cross-section of the first wind wheel 24, the first heat exchange section 31 is located between the first wind wheel 24 and the first air inlet 22, and the second heat exchange section 32 is located between the first wind wheel 24 and the second air outlet 43.

[0084] In this embodiment, the heat exchanger 30 is formed by splicing the first heat exchange section 31 and the second heat exchange section 32 which form an angle with each other, and a transition fillet can be provided at the connection of the first heat exchange section 31 and the second heat exchange section 32.

[0085] The first heat exchange section 31 is close to the first air inlet 22 and close to the first wind wheel 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 wind wheel 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.

[0086] 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 refrigerating and heating capacities of the air conditioner and improving the energy efficiency of the air conditioner.

[0087] In some embodiments of the air conditioner of the utility model, such as Figure 3 shown, the heat exchanger 30 includes a first heat exchange section 31 and a second heat exchange section 32 which 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.

[0088] On the projection of the cross-section of the first wind wheel 24, the included angle α between the first heat exchange section 31 and the first air inlet 22 is 0 to 15 degrees, and the included 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 located between the first wind wheel 24 and the first air inlet 22, and the second heat exchange section 32 is located between the first wind wheel 24 and the second air outlet 43.

[0089] 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 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 refrigerating and heating capacities of the air conditioner and improving the energy efficiency of the air conditioner.

[0090] 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

[0091] ), so as to make full use of the heat exchange capacity of the lateral end of the first heat exchange section 31 and avoid waste of heat exchange capacity. Figure 3 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 (

[0092] the rear side in Figure 3 ), so as to make full use of the heat exchange capacity of the lateral end of the second heat exchange section 32 and avoid waste of heat exchange capacity.

[0093] In some embodiments of the air conditioner of the utility model, as

[0094] 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.

[0095] In some embodiments of the air conditioner of the utility model, as Figures 1 - 3 shown, the first side wall 11 is the front panel.

[0096] 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.

[0097] 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 or a TV cabinet), thereby improving the consistency of the home decoration style.

[0098] 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.

[0099] In this embodiment, the width L14 of the first air outlet 23 is smaller 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.

[0100] 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 recognized as covering 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 above the first air inlet; the second air outlet is within the first air inlet section and is on the side of the heat exchanger away from the first air wheel; a second air wheel 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 second air wheel is a centrifugal air wheel or an axial-flow air wheel, and the second air wheel is coaxially and drivingly connected to a second motor.

3. 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 second air wheel is a centrifugal air wheel or an axial-flow air wheel, and the axis of the second air wheel is parallel to the axis of the first air wheel; the first motor is also drivingly connected to the second air wheel through a transmission mechanism.

4. The air conditioner according to claim 2 or 3, 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.

5. The air conditioner according to claim 4, wherein The second air inlet is spaced above the first air inlet; The second air wheel is above the heat exchanger; the second air outlet is below the upper end of the heat exchanger.

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

7. The air conditioner according to claim 4, 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; 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.

8. The air conditioner according to claim 4, 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 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; 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.

9. The air conditioner according to claim 4, 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 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; 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 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.

10. The air conditioner according to claim 4, 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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