Cabinet air conditioner

Abstract

The utility model provides a cabinet air conditioner. The cabinet air conditioner comprises a machine shell, a first air supply duct, a second air supply duct and a second air inlet duct. A first air inlet is formed in the front side face of the machine shell. The rear side of the first air inlet is connected with a first air inlet channel. One end of the first air supply duct is connected with the first air inlet duct, and the other end forms a first air supply outlet on the front side surface. A first wind wheel is arranged in the first air supply duct. One end of the second air supply duct is connected with the first air inlet duct, and the other end forms a second air supply port on the front side surface. And a second wind wheel is arranged in the second air supply duct. The first air supply outlet and the second air supply outlet are located in the two opposite sides of the first air inlet in the transverse direction. The second air inlet duct forms a second air outlet in the first air inlet duct, and a second air inlet is formed in the front side face. And a third wind wheel is arranged in the second air inlet duct. The cabinet type air conditioner can make up for air volume loss caused by large air path direction change, and achieves the effect of improving the air supply volume and the air supply distance of the cabinet type air conditioner.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a cabinet air conditioner. Background Art

[0002] For an 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 air return 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 this technical solution, due to the large change in the air flow direction, a large air loss will be generated, which will further lead to a small air outlet volume and a short air supply distance of the air conditioner, affecting the user experience. Summary of the Utility Model

[0003] In view of the above problems, the present utility model is proposed to provide an air conditioner that overcomes the above problems or at least partially solves the above problems, aiming to solve the problems that the existing air conditioner has a small air outlet volume and a short air supply distance, affecting the user experience.

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

[0005] A cabinet air conditioner includes a machine shell, a first air supply duct, a second air supply duct, and a second air inlet duct.

[0006] A first air inlet is arranged on the front side surface of the machine shell. The first air inlet duct is connected to the rear side of the first air inlet.

[0007] One end of the first air supply duct is connected to the first air inlet duct, and the other end forms a first air outlet on the front side surface. A first air wheel is arranged in the first air supply duct.

[0008] One end of the second air supply duct is connected to the first air inlet duct, and the other end forms a second air outlet on the front side surface. A second air wheel is arranged in the second air supply duct. The first air outlet and the second air outlet are on the opposite sides of the first air inlet along the horizontal direction.

[0009] The second air inlet duct forms a second air outlet in the first air inlet duct and a second air inlet on the front side surface. A third air wheel is arranged in the second air inlet duct.

[0010] Optionally, both the first air wheel and the second air wheel are cross-flow air wheels and are both arranged vertically.

[0011] A first heat exchanger and a second heat exchanger are arranged vertically in the first air inlet duct. The first heat exchanger is on the inlet side of the first air wheel. The second heat exchanger is on the inlet side of the second air wheel.

[0012] The second air outlet is located on a side of the first heat exchanger away from the first wind wheel and on a side of the second heat exchanger away from the second wind wheel.

[0013] Optionally, the second air outlet is located at the rear side of a first plane in which the axis of the first wind wheel and the axis of the second wind wheel are located.

[0014] Optionally, the first heat exchanger includes a first heat exchange section at the front side of the first plane and a second heat exchange section at the rear side of the first plane. The included angle between the first heat exchange section and the second heat exchange section is an obtuse angle.

[0015] The second heat exchanger includes a third heat exchange section at the front side of the first plane and a fourth heat exchange section at the rear side of the first plane. The included angle between the third heat exchange section and the fourth heat exchange section is an obtuse angle.

[0016] The second air outlet is located on a side of the second heat exchange section away from the first wind wheel and on a side of the fourth heat exchange section away from the second wind wheel.

[0017] Optionally, from front to back, the distance between the first heat exchange section and the third heat exchange section gradually decreases.

[0018] From front to back, the distance between the second heat exchange section and the fourth heat exchange section gradually increases.

[0019] Optionally, one end of the first wind wheel is drivingly connected to a first motor. The third wind wheel is a centrifugal wind wheel or an axial flow wind wheel. The first motor is also drivingly connected to the third wind wheel.

[0020] Optionally, the second air inlet is located above the first air inlet. The third wind wheel is located above the first wind wheel, and the inlet side of the third wind wheel opens upward. The first motor is a double-shaft motor and is located between the first wind wheel and the third wind wheel. One shaft extension of the first motor is coaxially connected to the upper end of the first wind wheel, and the other shaft extension is coaxially connected to the lower end of the third wind wheel.

[0021] Optionally, the second air inlet is located below the first air inlet. The third wind wheel is located below the first wind wheel, and the inlet side of the third wind wheel opens downward. The first motor is a double-shaft motor and is located between the first wind wheel and the third wind wheel. One shaft extension of the first motor is coaxially connected to the lower end of the first wind wheel, and the other shaft extension is coaxially connected to the upper end of the third wind wheel.

[0022] Optionally, there are two second air inlet ducts. The two second air inlets of the two second air inlet ducts are arranged adjacent to each other or spaced apart in the transverse direction, and the two second air outlets of the two second air inlet ducts are spaced apart in the transverse direction.

[0023] One end of the second wind wheel is coaxially driven and connected to a second motor, and the second motor is a dual-axis motor. The first motor and the second motor are each coaxially connected to one of the third wind wheels.

[0024] Optionally, the upper end of the first wind wheel is driven and connected to a first motor. The third wind wheel is a centrifugal wind wheel or an axial flow wind wheel, and the third wind wheel is located below the first wind wheel. The third wind wheel is coaxially driven and connected to a third motor. The second air inlet is located below the first air inlet.

[0025] Optionally, the lower end of the first wind wheel is driven and connected to a first motor. The third wind wheel is a centrifugal wind wheel or an axial flow wind wheel, and the third wind wheel is located above the first wind wheel. The third wind wheel is coaxially driven and connected to a third motor. The second air inlet is located above the first air inlet.

[0026] Optionally, there are two second air inlet ducts. The two second air inlets of the two second air inlet ducts are arranged adjacent to each other or spaced apart in the transverse direction, and the two second air outlets of the two second air inlet ducts are spaced apart in the transverse direction.

[0027] One end of the second wind wheel close to the first motor is driven and connected to a second motor.

[0028] For the cabinet air conditioner of the present invention, by providing two air supply ducts (the first air supply duct, the second air supply duct) and two wind wheels (the first wind wheel, the second wind wheel), compared with only providing one air supply duct and one wind wheel, the air supply volume of the air conditioner can be greatly increased, and the air supply distance can be increased, so as to make up for the air volume loss caused by the too large change in the air flow direction when the air inlet and the air outlet are on the same front side surface, and achieve the effect of improving the air supply volume and the air supply distance of the cabinet air conditioner. By providing the second air inlet duct and the third wind wheel, the third wind wheel can assist in sucking air from the second air inlet and then discharging it into the first air inlet duct, which can increase the air inlet volume of the first wind wheel and / or the second wind wheel, and further achieve the effect of further improving the air supply volume and increasing the air supply distance of the cabinet air conditioner.

[0029] Based on the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying 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

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

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

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

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

[0034] Figure 4 is Figure 1 a schematic cross-sectional view along the B-B axis in ;

[0035] Figure 5 is Figure 3 a schematic cross-sectional view along the C-C axis in ;

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

[0037] List of reference numerals:

[0038] 10, housing; 11, front side; 21, first air inlet duct; 22, first air inlet; 31, first air supply duct; 32, first air supply outlet; 33, first impeller; 331, inlet side of the first impeller; 34, first heat exchanger; 341, first heat exchange section; 342, second heat exchange section; 35, first motor; 41, second air supply duct; 42, second air supply outlet; 43, second impeller; 431, inlet side of the second impeller; 44, second heat exchanger; 443, third heat exchange section; 444, fourth heat exchange section; 45, second motor; 51, second air inlet duct; 52, second air inlet; 53, second air outlet; 54, third impeller; 541, inlet side of the third impeller; 55, third motor; 60, first plane; 70, air duct. Detailed embodiments

[0039] The following refers to Figures 1 to 6The cabinet air conditioner according to the embodiment of the present invention is described. 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, including 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 "arranged", "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 internal communication of two components or the interaction relationship between two components, 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 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 other 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.

[0042] In the description of this embodiment, the description with reference to terms such as "one embodiment", "some embodiments", "schematic 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 cabinet air conditioner according to an embodiment of the present invention, asFigure 1 as shown in and with reference to Figures 2 - 6 . An embodiment of the present utility model provides a cabinet air conditioner, which includes a housing 10, a first air supply duct 31, a second air supply duct 41, and a second air intake duct 51. A first air intake 22 is provided on the front side 11 of the housing 10. A first air intake duct 21 is connected to the rear side of the first air intake 22. One end of the first air supply duct 31 is connected to the first air intake duct 21, and the other end forms a first air supply opening 32 on the front side 11. A first air wheel 33 is provided in the first air supply duct 31. One end of the second air supply duct 41 is connected to the first air intake duct 21, and the other end forms a second air supply opening 42 on the front side 11. A second air wheel 43 is provided in the second air supply duct 41. The first air supply opening 32 and the second air supply opening 42 are located on opposite sides of the first air intake 22 in the horizontal direction. The second air intake duct 51 forms a second air outlet 53 in the first air intake duct 21 and a second air intake 52 on the front side 11. A third air wheel 54 is provided in the second air intake duct 51.

[0044] Generally, the housing 10 of the cabinet air conditioner may include a front side 11 (which may also be referred to as a front panel in some embodiments), left and right sides, a rear side wall, a top cover, a base, etc. The cabinet air conditioner can be embedded and installed in a storage space within a furniture cabinet (such as a kitchen cabinet, a TV cabinet) or a wall, for example, embedded and installed in a cabinet compartment of a TV cabinet.

[0045] The installation method of the cabinet air conditioner can be a standing type, that is, the base of the air conditioner is placed on the bottom plate of the cabinet compartment of the furniture cabinet or the floor within the cabinet compartment. The installation method of the cabinet air conditioner can also be a wall-mounted type, that is, the rear side wall of the air conditioner is hung on the back panel of the cabinet compartment of the furniture cabinet or the wall within the cabinet compartment. The installation method of the cabinet air conditioner can also be a ceiling-mounted type, that is, the top cover of the air conditioner is hung on the top plate of the cabinet compartment of the furniture cabinet or the roof within the cabinet compartment.

[0046] For a cabinet air conditioner embedded and installed in a furniture cabinet or a wall, since its left and right sides and the rear side are all blocked, it is difficult to form an effective return air channel on the left and right sides and the rear side. Usually, the air intake and the air outlet are both set on the front panel, that is, a forward air intake and forward air outlet air flow circuit is formed. In this air flow circuit, the air flow direction will have an approximate 180-degree turn, and the air flow in the air duct needs to turn multiple times, which will generate a large air loss, and then lead to a smaller air supply volume and a shorter air supply distance of the air conditioner, affecting the user experience.

[0047] In this embodiment, the first air supply opening 32, the first air intake 22, and the second air supply opening 42 are all opened on the front side 11 and are arranged at intervals in sequence. The first air intake 22 can be in the middle, and the first air supply opening 32 and the second air supply opening 42 are respectively on the left and right sides of the first air intake 22.

[0048] The first wind wheel 33 and the second wind wheel 43 can be cross-flow wind wheels, centrifugal wind wheels, axial-flow wind wheels, etc., which are used to suck the air in front of the first air inlet 22 into the first air inlet duct 21, and then suck them into the first air supply duct 31 and the second air supply duct 41 respectively, and finally send them out through the first air supply outlet 32 and the second air supply outlet 42. In this embodiment, by setting two air supply ducts (the first air supply duct 31 and the second air supply duct 41) and two wind wheels (the first wind wheel 33 and the second wind wheel 43), compared with setting only one air supply duct and one wind wheel, the air supply volume of the air conditioner can be greatly increased, and the air supply distance can be increased, so as to make up for the air volume loss caused by the too large change in the air path direction when the air inlet and the air supply outlet are on the same front side 11, and achieve the effect of improving the air outlet flow and the air supply distance of the air conditioner.

[0049] The second air inlet 52 is also provided on the front side 11, and can be located above and / or below the first air inlet 22. The second air inlet 52 and the first air inlet 22 can be connected or arranged at intervals.

[0050] The second air inlet duct 51 can be one or more. When there are multiple ones, a third wind wheel 54 can be arranged in each second air inlet duct 51. Correspondingly, the second air inlet 52 can be one or more. When there are multiple second air inlets 52, two adjacent second air inlets 52 can be connected or arranged at intervals.

[0051] The third wind wheel 54 can be a cross-flow wind wheel, a centrifugal wind wheel, an axial-flow wind wheel, etc., which is used to suck the air in front of the second air inlet 52 into the second air inlet duct 51, and then discharge it into the first air inlet duct 21 through the second air outlet 53. The second air outlet 53 can be located at the end of the first air inlet duct 21, or in an area of the first air inlet duct 21 that is less affected by the negative pressure of the first wind wheel 33 and / or the second wind wheel 43, so as to increase the air pressure in this area and promote the air flow in this area to enter the first wind wheel 33 and / or the second wind wheel 43 faster. That is to say, the third wind wheel 54 can assist in sucking air from the second air inlet 52 and then discharging it into the first air inlet duct 21, improve the air inlet volume of the first wind wheel 33 and / or the second wind wheel 43, and further achieve the effect of further increasing the air supply volume and the air supply distance of the air conditioner.

[0052] In some embodiments of the cabinet-type air conditioner of the utility model, such as Figures 3 - 5 shown, both the first wind wheel 33 and the second wind wheel 43 are cross-flow wind wheels and are both arranged vertically.

[0053] A first heat exchanger 34 and a second heat exchanger 44 are arranged vertically in the first air inlet duct 21. The first heat exchanger 34 is on the inlet side 331 of the first wind wheel. The second heat exchanger 44 is on the inlet side 431 of the second wind wheel.

[0054] The second air outlet 53 is located on the side of the first heat exchanger 34 away from the first air impeller 33 and on the side of the second heat exchanger 44 away from the second air impeller 43.

[0055] In this embodiment, both the first air impeller 33 and the second air impeller 43 are cross-flow air impellers and are both arranged vertically. Correspondingly, the first air supply duct 31 and the second air supply duct 41 may both be provided with a volute structure and a volute tongue structure. A cross-flow air impeller is a type of transverse flow air impeller. Based on the aerodynamic characteristics of the cross-flow air impeller, on the one hand, the first air impeller 33 and the second air impeller 43 can generate a relatively large air volume. On the other hand, while providing power for the air flow, they can also change the angle of the air flow direction. The first air impeller 33 can be drivingly connected to the first motor 35, and the second air impeller 43 can be drivingly connected to the second motor 45.

[0056] As Figures 3 - 4 shown, by respectively arranging the first air impeller 33 and the second air impeller 43 on both sides of the first air inlet duct 21, when the first air impeller 33 and the second air impeller 43 are working, an eccentric vortex will be formed in the area near the volute tongue. On the one hand, a negative pressure can be generated in the first air inlet duct 21 to promote the air in front of the first air inlet 22 to be sucked in. On the other hand, work can be done on the air flow passing through the first air impeller 33 and the second air impeller 43 to promote the air flow to blow out of the first air supply duct 31 and the second air supply duct 41 at a relatively high speed. On the third hand, the advantage of the cross-flow air impeller in changing the angle of the air flow direction can be fully utilized. While the first air impeller 33 and the second air impeller 43 do work on the passing air flow, they can also change the direction of the air flow to promote the air flow to turn and reduce the wind loss during the turning of the air flow.

[0057] In addition, the cross-flow air impeller also has the advantage of low noise. When the air conditioner is embedded and installed in the cabinet, except for the front side, other sides of the housing 10 may be close to or in contact with the partition of the cabinet. During operation, the cabinet will converge and amplify the noise of the air conditioner, affecting the user experience. By setting both the first air inlet impeller and the air outlet impeller as cross-flow air impellers, the noise of the air conditioner can be minimized as much as possible under the same air volume, improving the user experience.

[0058] The cabinet air conditioner is provided with a heat exchanger for temperature adjustment and humidity adjustment of the passing air flow. The heat exchanger can be located in the first air inlet duct 21 or there can be two, respectively located in the first air supply duct 31 and the second air supply duct 41. In this embodiment, there are two heat exchangers, which are respectively arranged at the inlet side 331 of the first air impeller and the inlet side 431 of the second air impeller. Compared with setting the heat exchanger in the air supply duct, this solution can reduce the resistance of the heat exchanger to the air supply flow and prevent the influence on the air supply volume and air supply distance.

[0059] The second air outlet 53 can be arranged between the first heat exchanger 34 and the first air impeller 33, that is, the normal-temperature air flow in the second air inlet duct 51 is mixed with the temperature-adjusted and humidity-adjusted air flow passing through the first heat exchanger 34 in the first air impeller 33, and then sent out through the first air supply outlet 32. Of course, the second air outlet 53 can also be arranged between the second heat exchanger 44 and the second air impeller 43, that is, the normal-temperature air flow in the second air inlet duct 51 is mixed with the temperature-adjusted and humidity-adjusted air flow passing through the second heat exchanger 44 in the second air impeller 43, and then sent out through the second air supply outlet 42. In this embodiment, the second air outlet 53 is arranged on the side of the first heat exchanger 34 away from the first air impeller 33 and on the side of the second heat exchanger 44 away from the second air impeller 43. In this way, before the air flow in the second air inlet duct 51 enters the first air impeller 33 and / or the second air impeller 43, it will first pass through the first heat exchanger 34 and / or the second heat exchanger 44. On the one hand, it can adjust the temperature and humidity to improve the refrigeration and heating effects of the air conditioner. On the other hand, it can be rectified by the fins of the heat exchanger, thereby reducing or avoiding the generation of turbulent flow at the inlet side 331 of the first air impeller and / or the inlet side 431 of the second air impeller.

[0060] It should be understood that in this embodiment, the second air outlet 53 can be one or more, and can be set according to needs.

[0061] In some embodiments of the cabinet-type air conditioner of the utility model, such as Figures 3 - 4 shown, the second air outlet 53 is located at the rear side of the first plane 60 where the axes of the first air impeller 33 and the second air impeller 43 are located.

[0062] In this embodiment, the second air outlet 53 is located in the rear-end area of the first air inlet duct 21. Since it is far from the first air inlet 22, the air flow rate at this place is small. By arranging the second air outlet 53 in the rear-end area of the first air inlet duct 21, the air flow rate at this place can be increased. On the one hand, the total air inlet flow rate of the first air impeller 33 and the second air impeller 43 can be improved, thereby improving the air outlet flow rate and air outlet speed. On the other hand, the heat exchange capacity of the heat exchanger facing this place can be fully utilized to improve the refrigeration and heating effects of the air conditioner.

[0063] In some embodiments of the cabinet-type air conditioner of the utility model, such as Figures 3 - 4 shown, the first heat exchanger 34 includes a first heat exchange section 341 located on the front side of the first plane 60 and a second heat exchange section 342 located on the rear side of the first plane 60. The included angle between the first heat exchange section 341 and the second heat exchange section 342 is an obtuse angle.

[0064] The second heat exchanger 44 includes a third heat exchange section 443 located on the front side of the first plane 60 and a fourth heat exchange section 444 located on the rear side of the first plane 60. The included angle between the third heat exchange section 443 and the fourth heat exchange section 444 is an obtuse angle.

[0065] The second air outlet 53 is located on the side of the second heat exchange section 342 away from the first air impeller 33 and on the side of the fourth heat exchange section 444 away from the second air impeller 43.

[0066] In this embodiment, the first heat exchanger 34 can be integrally V-shaped or U-shaped to wrap around the inlet side 331 of the first air impeller. The first heat exchange section 341 is used to promote the entry of the backward flowing air flow. After temperature and humidity adjustment, it enters the first air impeller 33 from the area near the volute tongue side. The second heat exchange section 342 is used to promote the entry of the air flow remaining in the rear area of the first air inlet duct 21 and the air flow discharged from the second air outlet 53. After temperature and humidity adjustment, it enters the first air impeller 33 from the area near the volute side. An excessive fillet can be provided at the connection between the first heat exchange section 341 and the second heat exchange section 342. The third heat exchange section 443 and the fourth heat exchange section 444 can be set with reference to the first heat exchange section 341 and the second heat exchange section 342, and will not be elaborated here.

[0067] The second air outlet 53 is located in the rear area of the first air inlet duct 21, and on the side of the second heat exchange section 342 away from the first air impeller 33 and on the side of the fourth heat exchange section 444 away from the second air impeller 43. That is to say, the air flow discharged from the second air outlet 53 mainly enters the first air impeller 33 and / or the second air impeller 43 through the second heat exchange section 342 and / or the fourth heat exchange section 444. In this way, the forward reflux of the air flow in the rear area of the first air inlet duct 21 can be prevented, which affects the stability of the air flow in the first air inlet duct 21.

[0068] In some embodiments of the cabinet-type air conditioner of the utility model, such as Figures 3 - 4 As shown, from front to back, the distance L1 between the first heat exchange section 341 and the third heat exchange section 443 gradually decreases. From front to back, the distance L2 between the second heat exchange section 342 and the fourth heat exchange section 444 gradually increases.

[0069] In this embodiment, the first air inlet duct 21 forms a gradually shrinking duct between the first heat exchange section 341 and the third heat exchange section 443 to promote more air flow in the front area of the first air inlet duct 21 to flow left-rear or right-rear into the first heat exchange section 341 and the third heat exchange section 443, thereby increasing the air inlet flow rate.

[0070] In this embodiment, the first air inlet duct 21 forms a gradually expanding duct between the second heat exchange section 342 and the fourth heat exchange section 444 to convert part of the dynamic pressure of the backward flowing air flow in the rear area of the first air inlet duct 21 into static pressure, and promote the air flow to flow left-front or right-front under the action of the static pressure difference and be sucked into the first air impeller 33 and / or the second air impeller 43.

[0071] In some embodiments of the cabinet-type air conditioner of the utility model, such as Figures 5 - 6As shown, one end of the first wind wheel 33 is drivingly connected to a first motor 35. The third wind wheel 54 is a centrifugal wind wheel or an axial flow wind wheel. The first motor 35 is also drivingly connected to the third wind wheel 54.

[0072] Centrifugal wind wheels and axial flow wind wheels are relatively small in volume, which can reduce the overall volume of the air conditioner. A duct 70 can be provided in the second air inlet duct 51 to guide the air flow direction. The third wind wheel 54 can be arranged in the duct 70, and the inlet side 541 of the third wind wheel can face the second air inlet 52.

[0073] In this embodiment, the first wind wheel 33 and the third wind wheel 54 share one motor to save manufacturing costs. Specifically, the first wind wheel 33 and / or the third wind wheel 54 can be drivingly connected to the first motor 35 through a chain drive mechanism, a belt drive mechanism, a gear mechanism, etc. Of course, they can also be coaxially drivingly connected. It can be set according to needs.

[0074] In some embodiments of the cabinet air conditioner of the utility model, such as Figure 2 、 Figures 5 - 6 As shown, the second air inlet 52 is located above the first air inlet 22. The third wind wheel 54 is located above the first wind wheel 33, and the inlet side 541 of the third wind wheel opens upward. The first motor 35 is a double-shaft motor and is located between the first wind wheel 33 and the third wind wheel 54. One shaft extension of the first motor 35 is coaxially connected to the upper end of the first wind wheel 33, and the other shaft extension is coaxially connected to the lower end of the third wind wheel 54.

[0075] In this embodiment, the output shaft at the lower end of the first motor 35 is coaxially and fixedly connected to the rotating shaft at the upper end of the first wind wheel 33, and the output shaft at the upper end of the first motor 35 is coaxially and fixedly connected to the rotating shaft at the lower end of the third wind wheel 54. On the one hand, this driving connection method has a relatively high transmission efficiency. On the other hand, it can ensure that the rotation speed of the third wind wheel 54 is always proportional to that of the first wind wheel 33, so that the ratio of the air inlet flow rate of the second air inlet duct 51 to the air outlet flow rate of the first air supply duct 31 remains stable, preventing energy consumption waste caused by mismatched flow rates between the two wind wheels.

[0076] In this embodiment, the second air inlet 52 is located above the first air inlet 22. The third wind wheel 54 can suck the air at a relatively higher position from the second air inlet 52, convey it to the upstream of the heat exchanger, and after heat exchange and temperature adjustment, it is blown out through the air outlet under the action of the first wind wheel 33 and / or the second wind wheel 43. In this way, when the air conditioner is cooling, it can exchange heat and cool the air with a relatively higher temperature, thereby improving the indoor temperature stratification situation, preventing hot head and cold feet, and achieving the effect of improving the user experience.

[0077] In some embodiments of the cabinet air conditioner of the utility model, the second air inlet 52 is located below the first air inlet 22. The third impeller 54 is located below the first impeller 33, and the inlet side 541 of the third impeller faces downward and is open. The first motor 35 is a double-shaft motor and is located between the first impeller 33 and the third impeller 54. One shaft extension of the first motor 35 is coaxially connected to the lower end of the first impeller 33, and the other shaft extension is coaxially connected to the upper end of the third impeller 54.

[0078] In this embodiment, the second air inlet 52 is located below the first air inlet 22. The third impeller 54 can suck the air at a relatively lower position from the second air inlet 52, deliver it to the upstream of the heat exchanger, and after heat exchange and temperature adjustment, it is blown out through the air outlet under the action of the first impeller 33 and / or the second impeller 43. In this way, when the air conditioner is heating, the air with a relatively low temperature can be heated through heat exchange, thereby improving the indoor temperature stratification, preventing the head from being hot and the feet from being cold, and achieving the effect of improving the user experience.

[0079] In some embodiments of the cabinet air conditioner of the utility model, such as Figures 5 - 6 shown, there are two second air inlet ducts 51. The two second air inlets 52 of the two second air inlet ducts 51 are arranged adjacent to each other or spaced apart in the horizontal direction, and the two second air outlets 53 of the two second air inlet ducts 51 are arranged spaced apart in the horizontal direction.

[0080] One end of the second impeller 43 is coaxially driven and connected to the second motor 45, and the second motor 45 is a double-shaft motor. The first motor 35 and the second motor 45 are each coaxially connected to a third impeller 54.

[0081] In this embodiment, the two second air inlets 52 can both be located above the first air inlet 22 or both be located below the first air inlet 22, and can be set according to needs. By providing two or more second air inlet ducts 51, the air inlet volume of the first impeller 33 and / or the second impeller 43 can be further supplemented, thereby increasing the total air supply volume and the air supply distance of the cabinet air conditioner.

[0082] In some embodiments of the cabinet air conditioner of the utility model, such as Figures 5 - 6 shown, the upper end of the first impeller 33 is driven and connected to the first motor 35. The third impeller 54 is a centrifugal impeller or an axial flow impeller, and the third impeller 54 is located below the first impeller 33. The third impeller 54 is coaxially driven and connected to the third motor 55. The second air inlet 52 is located below the first air inlet 22.

[0083] In this embodiment, the first motor 35 and the third motor 55 are respectively located on the upper and lower sides of the first wind wheel 33, and the third motor 55 can make full use of the idle space on the lower side of the first wind wheel 33. At the same time, since the first wind wheel 33 and the third wind wheel 54 are independently connected to the third motor 55 respectively, the relative rotational speeds of the first wind wheel 33 and the third wind wheel 54 can be freely adjusted according to requirements to achieve the best speed matching under different working conditions, and they work together to increase the air supply volume and air supply distance of the air conditioner.

[0084] In some embodiments of the cabinet-type air conditioner of the utility model, the lower end of the first wind wheel 33 is drivingly connected to the first motor 35. The third wind wheel 54 is a centrifugal wind wheel or an axial flow wind wheel, and the third wind wheel 54 is located on the upper side of the first wind wheel 33. The third wind wheel 54 is coaxially drivingly connected to the third motor 55. The second air inlet 52 is located on the upper side of the first air inlet 22.

[0085] In this embodiment, the third motor 55 and the first motor 35 are respectively located on the upper and lower sides of the first wind wheel 33, and the first motor 35 can make full use of the idle space on the lower side of the first wind wheel 33. At the same time, since the first wind wheel 33 and the third wind wheel 54 are independently connected to the third motor 55 respectively, the relative rotational speeds of the first wind wheel 33 and the third wind wheel 54 can be freely adjusted according to requirements to achieve the best speed matching under different working conditions, and they work together to increase the air supply volume and air supply distance of the air conditioner.

[0086] In some embodiments of the cabinet-type air conditioner of the utility model, as Figures 5 - 6 shown, there are two second air inlet ducts 51. The two second air inlets 52 of the two second air inlet ducts 51 are arranged adjacent to each other or spaced apart in the horizontal direction, and the two second air outlets 53 of the two second air inlet ducts 51 are arranged spaced apart in the horizontal direction. One end of the second wind wheel 43 close to the first motor 35 is drivingly connected to the second motor 45.

[0087] In this embodiment, the two second air inlets 52 can both be located on the upper side of the first air inlet 22 or both be located on the lower side of the first air inlet 22, which can be set according to needs. By providing two or more second air inlet ducts 51, the air supply volume of the first wind wheel 33 and / or the second wind wheel 43 can be further supplemented, thereby increasing the total air supply volume and air supply distance of the cabinet-type air conditioner.

[0088] In some embodiments of the cabinet-type air conditioner of the utility model, as Figures 5 - 6 shown, there are four second air inlet ducts 51. The two second air inlets 52 of two of the second air inlet ducts 51 are located on the upper side of the first air inlet 22 and are arranged adjacent to each other or spaced apart in the horizontal direction. The two second air inlets 52 of the other two second air inlet ducts 51 are located on the lower side of the first air inlet 22 and are arranged adjacent to each other or spaced apart in the horizontal direction.

[0089] The first wind wheel 33 is coaxially and drivably connected to the first motor 35. The first motor 35 is a dual-axis motor, and the first motor 35 is also coaxially and drivably connected to a third wind wheel 54. The second wind wheel 43 is coaxially and drivably connected to the second motor 45. The second motor 45 is a dual-axis motor, and the second motor 45 is also coaxially and drivably connected to a third wind wheel 54. The other two third wind wheels 54 are respectively on the sides of the first wind wheel 33 and the second wind wheel 43 away from the first motor 35 and the second motor 45, and each is coaxially and drivably connected to a third motor 55. In this way, only four motors are needed to drive six wind wheels to rotate, which can reduce the manufacturing cost of the air conditioner.

[0090] In this embodiment, by providing four second air inlet ducts 51, on the one hand, the air inlet volume of the first wind wheel 33 and the second wind wheel 43 is further supplemented, thereby increasing the total air supply volume and the air supply distance of the cabinet air conditioner. On the other hand, the air at relatively higher and lower positions indoors can also be sucked into the air conditioner for temperature and humidity adjustment, improving the indoor temperature stratification situation, preventing hot heads and cold feet, and achieving the effect of improving the user experience.

[0091] 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 cabinet air conditioner, characterized in that: include: A casing, wherein a first air inlet is arranged on a front side of the casing; A first air inlet duct is connected to the rear side of the first air inlet; a first air supply duct, wherein one end of the first air supply duct is connected to the first air inlet duct, and the other end of the first air supply duct forms a first air supply port on the front side surface; a first wind wheel is arranged in the first air supply duct; a second air supply duct, wherein one end of the second air supply duct is connected to the first air inlet duct, and the other end of the second air supply duct forms a second air supply port on the front side surface; a second wind wheel is arranged in the second air supply duct; the first air supply port and the second air supply port are located on opposite sides of the first air inlet in the transverse direction; A second air inlet duct is provided, wherein the second air inlet duct forms a second air outlet in the first air inlet duct and a second air inlet is formed on the front side surface; a third wind wheel is arranged in the second air inlet duct.

2. The air conditioner according to claim 1, characterized in that: The first wind wheel and the second wind wheel are both crossflow wind wheels, and are both arranged vertically; A first heat exchanger and a second heat exchanger are vertically arranged in the first air inlet duct; the first heat exchanger is located at the inlet side of the first wind wheel; the second heat exchanger is located at the inlet side of the second wind wheel; The second air outlet is located on a side of the first heat exchanger away from the first wind wheel, and is located on a side of the second heat exchanger away from the second wind wheel.

3. The air conditioner according to claim 2, characterized in that: The second air outlet is located at the rear side of a first plane where the axis of the first wind wheel and the axis of the second wind wheel are located.

4. The air conditioner according to claim 3, characterized in that: The first heat exchanger comprises a first heat exchange section located in front of the first plane and a second heat exchange section located in rear of the first plane; the angle between the first heat exchange section and the second heat exchange section is an obtuse angle; The second heat exchanger comprises a third heat exchange section located in front of the first plane and a fourth heat exchange section located in rear of the first plane; the angle between the third heat exchange section and the fourth heat exchange section is an obtuse angle; The second air outlet is located on a side of the second heat exchange section away from the first wind wheel, and is located on a side of the fourth heat exchange section away from the second wind wheel.

5. The air conditioner according to claim 4, characterized in that: From front to back, the distance between the first heat exchange section and the third heat exchange section gradually decreases; From front to back, the distance between the second heat exchange section and the fourth heat exchange section gradually increases.

6. The air conditioner according to claim 2, characterized in that: One end of the first wind wheel is transmission-connected to the first motor; the third wind wheel is a centrifugal wind wheel or an axial flow wind wheel; the first motor is also transmission-connected to the third wind wheel.

7. The air conditioner according to claim 6, characterized in that: The second air inlet is located on the upper side of the first air inlet; the third wind wheel is located on the upper side of the first wind wheel, and the inlet side of the third wind wheel is open upward; the first motor is a double-shaft motor, and is located between the first wind wheel and the third wind wheel; one shaft extension of the first motor is coaxially connected to the upper end of the first wind wheel, and the other shaft extension is coaxially connected to the lower end of the third wind wheel; or The second air inlet is located at the lower side of the first air inlet; the third wind wheel is located at the lower side of the first wind wheel, and the inlet side of the third wind wheel is open downward; the first motor is a dual-axis motor, and is located between the first wind wheel and the third wind wheel; one shaft extension of the first motor is coaxially connected to the lower end of the first wind wheel, and the other shaft extension is coaxially connected to the upper end of the third wind wheel.

8. The air conditioner according to claim 7, characterized in that: There are two second air inlet ducts; the two second air inlets of the two second air inlet ducts are arranged in a transverse direction connected or spaced apart, and the two second air outlets of the two second air inlet ducts are arranged in a transverse direction spaced apart; One end of the second wind wheel is coaxially connected to a second motor, and the second motor is a dual-shaft motor; the first motor and the second motor are each coaxially connected to one of the third wind wheels.

9. The air conditioner according to claim 2, characterized in that: The upper end of the first wind wheel is connected to the first motor in a transmission manner; the third wind wheel is a centrifugal wind wheel or an axial flow wind wheel, and the third wind wheel is located at the lower side of the first wind wheel; the third wind wheel is coaxially connected to the third motor in a transmission manner; the second air inlet is located at the lower side of the first air inlet; or The lower end of the first wind wheel is transmission-connected to the first motor; the third wind wheel is a centrifugal wind wheel or an axial flow wind wheel, and the third wind wheel is located on the upper side of the first wind wheel; the third wind wheel is coaxially transmission-connected to the third motor; the second air inlet is located on the upper side of the first air inlet.

10. The air conditioner according to claim 9, characterized in that: There are two second air inlet ducts; the two second air inlets of the two second air inlet ducts are arranged in a transverse direction connected or spaced apart, and the two second air outlets of the two second air inlet ducts are arranged in a transverse direction spaced apart; One end of the second wind wheel close to the first motor is transmission-connected to the second motor.

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