Air conditioning cabinet and control method

Abstract

The present invention provides an air conditioner cabinet and a control method. The air conditioner cabinet includes a shell, the shell has an upper air port and a lower air port; a heat exchanger, the heat exchanger is arranged in the shell and located between the upper air port and the lower air port; a centrifugal fan unit, the centrifugal fan unit is arranged in the shell, the centrifugal fan unit can introduce the airflow outside the shell into the shell through the upper air port, perform heat exchange with the heat exchanger, and then blow it out from the lower air port through the heat exchanger, or the centrifugal fan unit can introduce the airflow outside the shell into the shell through the lower air port, perform heat exchange with the heat exchanger, and then blow it out from the upper air port through the heat exchanger. In the heating mode, the upper air port air inlet and lower air port air outlet mode can be selected. In the cooling mode, the upper air port air outlet and lower air port air inlet mode can be selected. Such a setting can reduce the temperature difference of indoor air flow stratification and can effectively improve the energy utilization rate of the air conditioner cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to an air conditioning cabinet and a control method thereof. Background Art

[0002] At present, vertical cabinet air conditioners mainly include square cabinets with upper air outlets, circular cabinets with long air outlets, and distributed air supply cabinets that discharge air from both top and bottom. Due to the characteristics of cold and hot air that cold air sinks and hot air floats, the problem of indoor air heat stratification will occur during cooling and heating air supply. Since the return air position of the cabinet air conditioner remains unchanged, the heat distribution will not change. The air conditioner exchanges heat according to the indoor temperature. The heat stratification problem of distributed air supply cabinets is relatively small, and the temperature difference between the upper and lower parts is small, but it still cannot overcome the problem of inefficient energy utilization caused by the characteristics of cold and hot air. Summary of the invention

[0003] The main purpose of the present invention is to provide an air conditioning cabinet and a control method to solve the problem of low energy utilization rate of air conditioning cabinets in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an air conditioning cabinet, comprising: a shell having an upper air port and a lower air port; a heat exchanger, the heat exchanger is arranged in the shell and located between the upper air port and the lower air port; a centrifugal fan unit, the centrifugal fan unit is arranged in the shell, the centrifugal fan unit can introduce the airflow outside the shell into the shell through the upper air port, exchange heat with the heat exchanger, and then blow it out from the lower air port through the heat exchanger, or the centrifugal fan unit can introduce the airflow outside the shell into the shell through the lower air port, exchange heat with the heat exchanger, and then blow it out from the upper air port through the heat exchanger.

[0005] Furthermore, the heat exchanger divides the shell into an upper cavity and a lower cavity, the upper cavity is connected to the upper air outlet, the lower cavity is connected to the lower air outlet, and the centrifugal fan part is arranged in at least one of the upper cavity and the lower cavity.

[0006] Further, the upper air port comprises a first upper air port and a second upper air port, and the first upper air port and the second upper air port are arranged on different side walls of the shell.

[0007] Furthermore, the centrifugal fan part includes a first fan assembly, which is arranged in the upper cavity, and the first fan assembly includes: a first volute, which is arranged in the shell, and the first volute has a first air supply channel, and the air supply port of the first air supply channel is arranged opposite to the first upper air port, and a first through hole connected to the upper cavity is opened on the side wall of the first air supply channel; a first air duct door, which is movably connected to the side wall, and the first air duct door has a first position and a second position, and when the first air duct door is in the first position, the first air duct door seals the air supply port of the first air supply channel, and the first air supply channel is connected to the upper cavity through the first through hole.

[0008] Further, when the first air duct door is located at the second position, the first air duct door seals the first through hole so that the air supply port of the first air supply channel is connected to the first upper air port.

[0009] Furthermore, the first volute has at least one first air inlet hole, a first rotating air door is provided at the first air inlet hole, and the first air inlet hole can be selectively connected to the upper cavity or the second upper air port through the first rotating air door.

[0010] Furthermore, the first rotating damper includes: a first damper, which is connected to the edge of the first air inlet hole; a second damper, which is movably connected to the edge of the first air inlet hole, and the second damper and the first damper are arranged to form a first air inlet channel; wherein the second damper has a third position and a fourth position, when the second damper is located at the third position, the first air inlet hole is connected to the upper cavity, and when the second damper is located at the fourth position, the first air inlet hole is connected to the second upper air outlet through the first air inlet channel.

[0011] Furthermore, the first damper and the second damper are arc-shaped structures, and the second damper can slide along the circumference of the first air inlet to a third position overlapping with the first damper.

[0012] Further, when the second air door is located at the third position, the first air duct door is located at the first position, and when the second air door is located at the fourth position, the first air duct door is located at the second position.

[0013] Furthermore, there are two first air inlet holes, each of which is provided with a second upper air outlet corresponding thereto, and each first air inlet hole is provided with a first rotating air door.

[0014] Furthermore, the first fan assembly includes at least one first centrifugal fan, and the first centrifugal fan is disposed in the first volute.

[0015] Further, the downwind port comprises a first downwind port and a second downwind port, and the first downwind port and the second downwind port are arranged on different side walls of the shell.

[0016] Furthermore, the centrifugal fan part includes a second fan assembly, which is arranged in the lower cavity, and the second fan assembly includes: a second volute, which is arranged in the shell, and the second volute has a second air supply channel, and the air supply port of the second air supply channel is arranged opposite to the first lower air port, and a second through hole connected to the lower cavity is opened on the side wall of the second air supply channel; a second air duct door, the second air duct door is movably connected to the side wall, and the second air duct door has a fifth position and a sixth position. When the second air duct door is in the fifth position, the second air duct door seals the air supply port of the second air supply channel, and the second air supply channel is connected to the lower cavity through the second through hole.

[0017] Further, when the second air duct door is located at the sixth position, the second air duct door seals the second through hole so that the air supply port of the second air supply channel is connected to the first lower air port.

[0018] Furthermore, the second volute has at least one second air inlet hole, and a second rotating air door is provided at the second air inlet hole. The second air inlet hole can be selectively connected to the lower cavity or the second lower air outlet through the second rotating air door.

[0019] Furthermore, the second rotating damper includes: a third damper, which is connected to the edge of the second air inlet hole; a fourth damper, which is movably connected to the edge of the second air inlet hole, and the fourth damper and the third damper are arranged to form a second air inlet channel; wherein the fourth damper has a seventh position and an eighth position, and when the fourth damper is located at the seventh position, the second air inlet hole is connected to the lower cavity, and when the fourth damper is located at the eighth position, the second air inlet hole is connected to the second lower air outlet through the second air inlet channel.

[0020] Furthermore, the third damper and the fourth damper are arc-shaped structures, and the third damper can slide along the circumference of the second air inlet hole to a seventh position overlapping with the fourth damper.

[0021] Further, when the fourth air door is located at the seventh position, the second air duct door is located at the sixth position, and when the fourth air door is located at the eighth position, the second air duct door is located at the fifth position.

[0022] Furthermore, there are two second air inlet holes, each of which is provided with a second lower air outlet corresponding thereto, and each second air inlet hole is provided with a second rotating air door.

[0023] Furthermore, the second fan assembly includes at least one second centrifugal fan, and the second centrifugal fan is disposed in the second volute.

[0024] Further, the air conditioning cabinet includes a first fan assembly and a second fan assembly. When the second air door of the first fan assembly is in the fourth position, the first air duct door is in the first position, the fourth air door of the second fan assembly is in the seventh position, and the second air duct door is in the sixth position; or, when the second air door is in the third position, the first air duct door is in the second position, the fourth air door is in the eighth position, and the second air duct door is in the fifth position.

[0025] According to another aspect of the present invention, a method for controlling an air-conditioning cabinet is provided, and the method is used to control the above-mentioned air-conditioning cabinet, and the method includes the following steps: when the cooling mode is selected by the controller of the air-conditioning cabinet, the first air duct door of the first fan assembly is located at the second position, the second air duct door is located at the third position, the second air duct door of the second fan assembly is located at the fifth position, and the fourth air duct door is located at the eighth position; after the second fan assembly draws the external air flow from the second lower air port into the shell for heat exchange with the heat exchanger, the first fan assembly blows the inhaled air flow out of the shell from the first upper air port; when the controller of the air-conditioning cabinet selects the heating mode, the first air duct door of the first fan assembly is located at the first position, the second air duct door is located at the fourth position, the second air duct door of the second fan assembly is located at the sixth position, and the fourth air duct door is located at the seventh position; after the first fan assembly draws the external air flow from the second upper air port into the shell for heat exchange with the heat exchanger, the second fan assembly blows the inhaled air flow out of the shell from the first lower air port.

[0026] Furthermore, the air conditioning cabinet also includes an air supply mode. In the air supply mode, the centrifugal fan unit can introduce the airflow outside the shell into the shell through the upper air port and discharge it outside the shell through the lower air port. Alternatively, in the air supply mode, the centrifugal fan unit can introduce the airflow outside the shell into the shell through the lower air port and discharge it outside the shell through the upper air port. Alternatively, in the air supply mode, the first fan component sucks the external airflow into the shell from the second upper air port and blows it out of the shell through the first upper air port, and / or the second fan component sucks the external airflow into the shell from the second lower air port and blows it out of the shell through the first lower air port; wherein, in the air supply mode, the heat exchanger is in a non-working state.

[0027] By applying the technical solution of the present invention, a centrifugal fan unit is arranged in the shell, and the centrifugal fan unit can realize the upper air inlet and the lower air outlet, or the upper air outlet and the lower air inlet two air outlet modes. Among them, the air conditioner cabinet can select the corresponding air outlet mode according to the corresponding heat exchange mode. In particular, in the heating mode, the upper air inlet and the lower air outlet mode can be selected. In the cooling mode, the upper air outlet and the lower air inlet mode can be selected. Such a setting can reduce the temperature difference of the indoor air flow stratification, and can effectively improve the energy utilization rate of the air conditioner cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0029] Figure 1 It shows a structural schematic diagram of a first embodiment of an air conditioning cabinet according to the present invention;

[0030] Figure 2It shows a structural schematic diagram of a second embodiment of an air conditioning cabinet according to the present invention;

[0031] Figure 3 A schematic structural diagram of a third embodiment of an air conditioning cabinet according to the present invention is shown;

[0032] Figure 4 A schematic structural diagram of a fourth embodiment of an air conditioning cabinet according to the present invention is shown;

[0033] Figure 5 A schematic structural diagram of a fifth embodiment of an air conditioning cabinet according to the present invention is shown;

[0034] Figure 6 A schematic structural diagram of a sixth embodiment of an air conditioning cabinet according to the present invention is shown;

[0035] Figure 7 It shows a structural schematic diagram of a seventh embodiment of an air conditioning cabinet according to the present invention;

[0036] Figure 8 A schematic structural diagram of an eighth embodiment of an air conditioning cabinet according to the present invention is shown;

[0037] Fig. 9 A schematic structural diagram of a ninth embodiment of an air conditioning cabinet according to the present invention is shown;

[0038] Fig.10 A schematic structural diagram of a tenth embodiment of an air conditioning cabinet according to the present invention is shown;

[0039] Fig.11 A schematic structural diagram of an embodiment of a first fan assembly according to the present invention is shown;

[0040] Fig.12 A schematic diagram of an exploded structure of an embodiment of a first fan assembly according to the present invention is shown;

[0041] Fig.13 A schematic structural diagram of an embodiment of a second fan assembly according to the present invention is shown;

[0042] Fig.14 A schematic diagram of an exploded structure of an embodiment of a second fan assembly according to the present invention is shown.

[0043] The above drawings include the following reference numerals:

[0044] 10. Shell; 11. Upper air outlet; 111. First upper air outlet; 112. Second upper air outlet; 12. Lower air outlet; 121. First lower air outlet; 122. Second lower air outlet;

[0045] 13. Upper cavity; 14. Lower cavity;

[0046] 20. Heat exchanger;

[0047] 30. first fan assembly; 31. first volute; 311. first air supply channel; 312. first air inlet hole; 313. first through hole;

[0048] 32. The first air duct door; 33. The first centrifugal fan;

[0049] 40. First rotary damper; 41. First damper; 42. Second damper; 43. First air inlet channel;

[0050] 50, second fan assembly; 51, second volute; 511, second air supply channel; 512, second air inlet hole; 513, second through hole;

[0051] 52. Second air duct door; 53. Second centrifugal fan;

[0052] 60. Second rotary damper; 61. Third damper; 62. Fourth damper; 63. Second air inlet channel. DETAILED DESCRIPTION

[0053] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0056] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0057] Combination Figures 1 to 14 As shown, according to a specific embodiment of the present invention, an air conditioning cabinet is provided.

[0058] Specifically, the air conditioning cabinet includes a shell 10, a heat exchanger 20 and a centrifugal fan unit. The shell 10 has an upper air port 11 and a lower air port 12. The heat exchanger 20 is arranged in the shell 10 and is located between the upper air port 11 and the lower air port 12. The centrifugal fan unit is arranged in the shell 10. The centrifugal fan unit can introduce the airflow outside the shell 10 into the shell 10 through the upper air port 11 and perform heat exchange with the heat exchanger 20. After passing through the heat exchanger 20, it is blown out from the lower air port 12. The centrifugal fan unit can also introduce the airflow outside the shell 10 into the shell 10 through the lower air port 12 and perform heat exchange with the heat exchanger 20, and then pass through the heat exchanger 20 and blow it out from the upper air port 11.

[0059] In this embodiment, the centrifugal fan unit can realize the upper air inlet air inlet and the lower air outlet air outlet, or the upper air outlet air outlet and the lower air inlet air outlet two air outlet modes. Among them, the air conditioner cabinet can select the corresponding air outlet mode according to the corresponding heat exchange mode. In particular, in the heating mode, the upper air inlet air inlet and the lower air outlet air outlet mode can be selected. In the cooling mode, the upper air outlet air outlet and the lower air inlet air outlet mode can be selected. Such a setting can reduce the temperature difference of the indoor air flow stratification, and can effectively improve the energy utilization rate of the air conditioner cabinet.

[0060] The heat exchanger 20 divides the housing 10 into an upper cavity 13 and a lower cavity 14. The upper cavity 13 is connected to the upper air port 11. The lower cavity 14 is connected to the lower air port 12, and the centrifugal fan unit is arranged in at least one of the upper cavity 13 and the lower cavity 14. Such an arrangement can effectively improve the performance of the air conditioner cabinet.

[0061] As 1 to Figure 3 As shown, the upper air vent 11 includes a first upper air vent 111 and a second upper air vent 112. The first upper air vent 111 and the second upper air vent 112 are arranged on different side walls of the housing 10. Such an arrangement enables the air conditioner cabinet to achieve air inlet and air outlet in different directions, making the air inlet and air outlet of the air conditioner cabinet smoother.

[0062] like Figure 4 , Fig.11 and Fig.12 As shown, the centrifugal fan unit includes a first fan assembly 30. The first fan assembly 30 is arranged in the upper cavity 13. The first fan assembly 30 includes a first volute 31 and a first air duct door 32. The first volute 31 is arranged in the housing 10. The first volute 31 has a first air supply channel 311. The air supply port of the first air supply channel 311 is arranged opposite to the first upper air port 111. A first through hole 313 connected to the upper cavity 13 is provided on the side wall of the first air supply channel 311. The first air duct door 32 is movably connected to the side wall. The first air duct door 32 has a first position and a second position. When the first air duct door 32 is in the first position, the first air duct door 32 seals the air supply port of the first air supply channel 311, and the first air supply channel 311 is connected to the upper cavity 13 through the first through hole 313. When the first air duct door 32 is located at the second position, the first air duct door 32 seals the first through hole 313, so that the air supply port of the first air supply channel 311 is connected to the first upper air port 111. This arrangement can achieve the effect of switching the air inlet direction and the air outlet direction of the air duct, thereby improving the practicality and reliability of the first fan assembly 30.

[0063] The first volute 31 has at least one first air inlet 312, and a first rotary damper 40 is disposed at the first air inlet 312. The first air inlet 312 can be selectively connected to the upper cavity 13 or the second upper air port 112 through the first rotary damper 40. Such a configuration can achieve the effect of switching the air duct through the rotation of the first rotary damper 40, wherein the rotation of the first rotary damper 40 and the first air duct door 32 can be driven to rotate to the corresponding preset position by setting a driving motor.

[0064] Specifically, the first rotary damper 40 includes a first damper 41 and a second damper 42. The first damper 41 is connected to the edge of the first air inlet hole 312. The second damper 42 is movably connected to the edge of the first air inlet hole 312, and the second damper 42 and the first damper 41 are arranged to form a first air inlet channel 43. The second damper 42 has a third position and a fourth position. When the second damper 42 is located at the third position, the first air inlet hole 312 is connected to the upper cavity 13. When the second damper 42 is located at the fourth position, the first air inlet hole 312 is connected to the second upper air port 112 through the first air inlet channel 43. This arrangement makes the structure of the first rotary damper 40 simple and easy to operate.

[0065] Preferably, the first damper 41 and the second damper 42 are arc-shaped structures, and the second damper 42 can slide along the circumference of the first air inlet 312 to a third position overlapping with the first damper 41. Such a configuration can reduce the installation space required inside the housing, making the internal structure of the housing more compact. Among them, when the first damper 41 and the second damper 42 overlap, the second damper 42 can be located on the inside or outside of the first damper 41. When the second damper 42 is located at the third position, the first air duct door 32 is located at the first position, and when the second damper 42 is located at the fourth position, the first air duct door 32 is located at the second position.

[0066] Preferably, there are two first air inlet holes 312, each of which is provided with a second upper air port 112 corresponding thereto, and each first air inlet hole 312 is provided with a first rotating air door 40. Such a configuration can increase the air intake and air output of the air conditioner cabinet, thereby effectively improving the performance of the air conditioner cabinet.

[0067] The first fan assembly 30 includes at least one first centrifugal fan 33. The first centrifugal fan 33 is disposed in the first volute 31. Fig.12 As shown, there are two first centrifugal fans 33, and the two first centrifugal fans 33 are coaxially arranged in the first volute 31. Such an arrangement effectively improves the performance of the air conditioning cabinet.

[0068] like Figure 1 , Figure 3 As shown, the downwind port 12 includes a first downwind port 121 and a second downwind port 122, and the first downwind port 121 and the second downwind port 122 are arranged on different side walls of the housing 10. Such an arrangement can improve the smoothness of air inlet and outlet of the air conditioner cabinet.

[0069] like Figure 4 , Fig.13 and Fig.14As shown, the centrifugal fan unit includes a second fan assembly 50. The second fan assembly 50 is arranged in the lower cavity 14. The second fan assembly 50 includes a second volute 51 and a second air duct door 52. The second volute 51 is arranged in the housing 10, and the second volute 51 has a second air supply channel 511. The air supply port of the second air supply channel 511 is arranged opposite to the first lower air outlet 121. A second through hole 513 connected to the lower cavity 14 is provided on the side wall of the second air supply channel 511. The second air duct door 52 is movably connected to the side wall. The second air duct door 52 has a fifth position and a sixth position. When the second air duct door 52 is in the fifth position, the second air duct door 52 seals the air supply port of the second air supply channel 511, and the second air supply channel 511 is connected to the lower cavity 14 through the second through hole 513. That is, in this embodiment, the structure of the second fan assembly 50 can be set to the same setting mode as the structure of the first fan assembly 30, so that the reliability of the air conditioning cabinet can be further improved and the production cost of the air conditioning cabinet can be effectively reduced. When the second air duct door 52 is located at the sixth position, the second air duct door 52 seals the second through hole 513 so that the air supply port of the second air supply channel 511 is connected to the first lower air outlet 121.

[0070] The second volute 51 has at least one second air inlet 512 . A second rotary damper 60 is disposed at the second air inlet 512 , and the second air inlet 512 can be selectively connected to the lower cavity 14 or the second lower air port 122 through the second rotary damper 60 .

[0071] The second rotary damper 60 includes a third damper 61 and a fourth damper 62. The third damper 61 is connected to the edge of the second air inlet hole 512. The fourth damper 62 is movably connected to the edge of the second air inlet hole 512. The fourth damper 62 and the third damper 61 are arranged to form a second air inlet channel 63. The fourth damper 62 has a seventh position and an eighth position. When the fourth damper 62 is located at the seventh position, the second air inlet hole 512 is connected to the lower cavity 14. When the fourth damper 62 is located at the eighth position, the second air inlet hole 512 is connected to the second lower air port 122 through the second air inlet channel 63.

[0072] Preferably, the third damper 61 and the fourth damper 62 are arc-shaped structures, and the third damper 61 can slide along the circumference of the second air inlet hole 512 to the seventh position overlapping with the fourth damper 62. When the fourth damper 62 is at the seventh position, the second air duct door 52 is at the sixth position, and when the fourth damper 62 is at the eighth position, the second air duct door 52 is at the fifth position. This arrangement makes the third damper 61 simple in structure and reliable in operation.

[0073] The second fan assembly 50 includes at least one second centrifugal fan 53. The second centrifugal fan 53 is disposed in the second volute 51. Fig.10 and Fig.14 As shown, there are two second air inlet holes 512, each of which is provided with a second lower air port 122 corresponding thereto, and each second air inlet hole 512 is provided with a second rotary air door 60. Such a configuration can improve the practicality of the air conditioning cabinet.

[0074] like Fig. 9 and Fig.10 As shown, the air conditioning cabinet includes a first fan assembly 30 and a second fan assembly 50. When the second air door 42 of the first fan assembly 30 is located at the fourth position, the first air duct door 32 is located at the first position, the fourth air door 62 of the second fan assembly 50 is located at the seventh position, and the second air duct door 52 is located at the sixth position, the downwind outlet air outlet mode can be realized. Figure 6 and Figure 7 As shown, when the second air door 42 is in the third position, the first air duct door 32 is in the second position, the fourth air door 62 is in the eighth position, and the second air duct door 52 is in the fifth position, the upper air outlet mode can be realized. The heat exchanger is an evaporator.

[0075] Specifically, a comfortable air outlet function that can achieve upward and downward convection is selected to optimize the distribution of the indoor temperature field.

[0076] To achieve the upper and lower convection heat exchange of the air conditioner and improve the energy utilization efficiency, an air outlet is arranged on the upper and lower parts of the vertical cabinet air conditioner, and two-stage double-suction centrifugal fans are set up on the upper and lower parts of the internal structure. The upper and lower convection air outlet is achieved by switching the internal mechanism, thereby achieving upper and lower circulation convection in the cooling and heating modes. When cooling, air is discharged from the upper air outlet and returned from the lower air outlet. When heating, air is discharged from the lower air outlet and returned from the upper air outlet. Heat can be recovered and utilized according to the characteristics of cold and hot air, and then the operation mode of the whole machine can be adjusted to achieve the effect of energy saving and power saving.

[0077] like Figure 4 As shown, when the air conditioner cabinet is in the closed state, the opening and closing door panels of the upper and lower double-suction centrifugal fans, i.e., the air duct doors, are rotated and opened to the front air outlet position, the upper and lower front air outlets are in the closed state, and the dampers of the upper and lower side air inlets are in the closed state, the appearance mechanisms are all closed, and the entire machine is in the closed state.

[0078] When the air inlet doors on the left and right sides of the lower end are opened, the air suction rotary door on the side of the lower end is closed, and the upper channel of the lower front air outlet door is closed and opened (that is, the opening and closing door panels of the lower double-suction centrifugal fan are rotated to the front air outlet position), the operation mode of the lower double-suction centrifugal fan is to inhale the lower indoor air from the left and right sides of the lower end. After the action of the double-suction centrifugal fan, the airflow is sent to the middle cavity from the upper channel opened by the opening and closing door panels of the lower air outlet to exchange heat through the evaporator. At this time, the upper double-suction centrifugal fan component is arranged in the opposite way. The upper opening and closing door panel is rotated to the lower end, that is, the upper air outlet is opened, forming a complete centrifugal profile. The air inlet doors on the left and right sides of the upper end are closed, and the air suction rotary door on the side of the air duct is opened. Then, the upper centrifugal fan draws air from the middle cavity of the shell through the double-suction channels on both sides, that is, the airflow that has exchanged heat through the evaporator is sent out from the upper air outlet after being acted upon by the upper double-suction centrifugal fan, completing the effect of air inlet on the lower left and right sides and air outlet on the upper front side.

[0079] The operation mode of the upper left and right sides air intake and lower front air outlet is just opposite to the former. When the upper left and right side air intake doors are opened, the upper side air suction rotary door is closed, and the upper front air outlet door is closed and the downward channel is opened (that is, the opening and closing door panels of the upper double-suction centrifugal fan are rotated to the front air outlet position), the upper double-suction centrifugal fan operates in a manner that the upper indoor air is sucked in from the upper left and right sides. After the double-suction centrifugal fan is acted upon, the airflow is sent to the middle cavity from the downward channel opened by the upper air outlet opening and closing door panels, and heat is exchanged through the evaporator. At this time, the lower double-suction centrifugal fan assembly is arranged in the opposite manner. The lower opening and closing door panel is rotated to the upper end, that is, the lower air outlet is opened, forming a complete centrifugal profile. The lower left and right side air intake doors are closed, and the side air suction rotary door of the air duct is opened. Then the lower centrifugal fan sucks air from the middle cavity of the shell through the double-suction channels on both sides, that is, the airflow that has exchanged heat through the evaporator is sent out from the lower air outlet after being acted upon by the lower double-suction centrifugal fan, completing the effect of upper left and right side air intake and lower front air outlet.

[0080] According to another embodiment of the present application, a method for controlling an air conditioning cabinet is provided, the method being used to control the air conditioning cabinet in the above embodiment, the method comprising the following steps: when the cooling mode is selected through the controller of the air conditioning cabinet, the first air duct door 32 of the first fan assembly 30 is located at the second position, the second air duct door 42 is located at the third position, the second air duct door 52 of the second fan assembly 50 is located at the fifth position, and the fourth air duct door 62 is located at the eighth position, the second fan assembly 50 draws the external air flow from the second lower air outlet 122 into the housing 10 for heat exchange with the heat exchanger 20, and the first air duct door 52 of the second fan assembly 50 is located at the fifth position, and the fourth air duct door 62 of the second fan assembly 50 is located at the eighth position. The machine assembly 30 blows the sucked air flow out of the shell 10 from the first upper air port 111; when the controller of the air-conditioning cabinet selects the heating mode, the first air duct door 32 of the first fan assembly 30 is located at the first position, the second air door 42 is located at the fourth position, the second air duct door 52 of the second fan assembly 50 is located at the sixth position, and the fourth air door 62 is located at the seventh position. The first fan assembly 30 sucks the external air flow into the shell 10 from the second upper air port 112 and exchanges heat with the heat exchanger 20. Then, the second fan assembly 50 blows the sucked air flow out of the shell 10 from the first lower air port 121.

[0081] Furthermore, the air conditioner cabinet also includes an air supply mode. In the air supply mode, the centrifugal fan unit can introduce the airflow outside the housing 10 into the housing 10 through the upper air port 11 and then discharge it outside the housing 10 through the lower air port 12. Alternatively, in the air supply mode, the centrifugal fan unit can introduce the airflow outside the housing 10 into the housing 10 through the lower air port 12 and then discharge it outside the housing 10 through the upper air port 11. Alternatively, in the air supply mode, the first fan assembly 30 sucks the external airflow into the housing 10 from the second upper air port 112 and then blows it out of the housing 10 through the first upper air port 111, and the second fan assembly 50 sucks the external airflow into the housing 10 from the second lower air port 122 and then blows it out of the housing 10 through the first lower air port 121; wherein, in the air supply mode, the heat exchanger 20 is in a non-operating state, that is, the heat exchanger 20 does not perform heat exchange operations.

[0082] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0083] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0084] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioning cabinet, characterized in that: include: A housing (10), wherein the housing (10) has an upper air outlet (11) and a lower air outlet (12); a heat exchanger (20), the heat exchanger (20) being arranged in the housing (10) and located between the upper air outlet (11) and the lower air outlet (12); a centrifugal fan unit, the centrifugal fan unit being arranged in the housing (10), the centrifugal fan unit being capable of introducing an airflow outside the housing (10) into the housing (10) through the upper air port (11), exchanging heat with the heat exchanger (20), and then passing through the heat exchanger (20) to be blown out from the lower air port (12); the centrifugal fan unit being capable of introducing an airflow outside the housing (10) into the housing (10) through the lower air port (12), exchanging heat with the heat exchanger (20), and then passing through the heat exchanger (20) to be blown out from the upper air port (11); The heat exchanger (20) divides the shell (10) into an upper cavity (13) and a lower cavity (14); The centrifugal fan unit comprises a first fan assembly (30), wherein the first fan assembly (30) comprises: At least one first centrifugal fan (33); A first volute (31), the first volute (31) being arranged in the housing (10), the first volute (31) having a first air supply channel (311), a first through hole (313) being arranged on a side wall of the first air supply channel (311) and being in communication with the upper cavity (13); The upper air outlet (11) comprises a first upper air outlet (111) and a second upper air outlet (112); a first air duct door (32), the first air duct door (32) being movably connected to a side wall of the first air supply channel (311), the first air duct door (32) having a first position and a second position, when the first air duct door (32) is located at the first position, the first air duct door (32) seals an air supply port of the first air supply channel (311), and the first air supply channel (311) is connected to the upper cavity (13) through the first through hole (313); when the first air duct door (32) is located at the second position, the first air duct door (32) seals the first through hole (313), so that the air supply port of the first air supply channel (311) is connected to the first upper air port (111); The first volute (31) has at least one first air inlet hole (312), and a first rotating air door (40) is provided at the first air inlet hole (312); The first rotary damper (40) comprises: a first air door (41), the first air door (41) being connected to an edge of the first air inlet hole (312); a second air door (42), the second air door (42) being movably connected to an edge of the first air inlet hole (312), the second air door (42) and the first air door (41) being arranged to form a first air inlet channel (43); The second air door (42) has a third position and a fourth position. When the second air door (42) is located at the third position, the first air inlet hole (312) is connected to the upper cavity (13). When the second air door (42) is located at the fourth position, the first air inlet hole (312) is connected to the second upper air port (112) through the first air inlet channel (43). When the second air door (42) is located at the third position, the first air duct door (32) is located at the first position, and when the second air door (42) is located at the fourth position, the first air duct door (32) is located at the second position.

2. The air conditioning cabinet according to claim 1, characterized in that: The upper cavity (13) is in communication with the upper air port (11), the lower cavity (14) is in communication with the lower air port (12), and the centrifugal fan unit is arranged in at least one of the upper cavity (13) and the lower cavity (14).

3. The air conditioning cabinet according to claim 2, characterized in that: The first upper air port (111) and the second upper air port (112) are arranged on different side walls of the shell (10).

4. The air conditioning cabinet according to claim 3, characterized in that: The first fan assembly (30) is arranged in the upper cavity (13), and the air supply port of the first air supply channel (311) is arranged opposite to the first upper air port (111).

5. The air conditioning cabinet according to claim 4, characterized in that: The first air inlet (312) is selectively connected to the upper cavity (13) or the second upper air outlet (112) via the first rotating air door (40).

6. The air conditioning cabinet according to claim 5, characterized in that: The first damper (41) and the second damper (42) are arc-shaped structures, and the second damper (42) can slide along the circumference of the first air inlet hole (312) to the third position overlapping with the first damper (41).

7. The air conditioning cabinet according to claim 5, characterized in that: There are two first air inlet holes (312), each of which is provided with a second upper air port (112) corresponding thereto, and each of the first air inlet holes (312) is provided with a first rotating air door (40).

8. The air conditioning cabinet according to claim 4, characterized in that: The first centrifugal fan (33) is arranged in the first volute (31).

9. The air conditioning cabinet according to claim 2, characterized in that: The downwind port (12) comprises a first downwind port (121) and a second downwind port (122), wherein the first downwind port (121) and the second downwind port (122) are arranged on different side walls of the shell (10).

10. The air conditioning cabinet according to claim 9, characterized in that: The centrifugal fan unit comprises a second fan assembly (50), wherein the second fan assembly (50) is arranged in the lower cavity (14), and the second fan assembly (50) comprises: a second volute (51), the second volute (51) being arranged in the housing (10), the second volute (51) having a second air supply channel (511), an air supply port of the second air supply channel (511) being arranged opposite to the first lower air port (121), and a second through hole (513) being arranged on a side wall of the second air supply channel (511) and being in communication with the lower cavity (14); A second air duct door (52), the second air duct door (52) is movably connected to the side wall of the second air supply channel (511), the second air duct door (52) has a fifth position and a sixth position, when the second air duct door (52) is located at the fifth position, the second air duct door (52) seals the air supply port of the second air supply channel (511), and the second air supply channel (511) is connected to the lower cavity (14) through the second through hole (513).

11. The air conditioning cabinet according to claim 10, characterized in that: When the second air duct door (52) is located at the sixth position, the second air duct door (52) seals the second through hole (513) so that the air supply port of the second air supply channel (511) is connected to the first lower air outlet (121).

12. The air conditioning cabinet according to claim 11, characterized in that: The second volute (51) has at least one second air inlet hole (512), and a second rotary air door (60) is provided at the second air inlet hole (512). The second air inlet hole (512) can be selectively connected to the lower cavity (14) or the second lower air outlet (122) through the second rotary air door (60).

13. The air conditioning cabinet according to claim 12, characterized in that: The second rotary damper (60) comprises: a third air door (61), the third air door (61) being connected to an edge of the second air inlet hole (512); a fourth air door (62), the fourth air door (62) being movably connected to an edge of the second air inlet hole (512), the fourth air door (62) and the third air door (61) being arranged to form a second air inlet channel (63); The fourth air door (62) has a seventh position and an eighth position. When the fourth air door (62) is located at the seventh position, the second air inlet hole (512) is connected to the lower cavity (14). When the fourth air door (62) is located at the eighth position, the second air inlet hole (512) is connected to the second lower air outlet (122) through the second air inlet channel (63).

14. The air conditioning cabinet according to claim 13, characterized in that: The third air door (61) and the fourth air door (62) are arc-shaped structures, and the third air door (61) can slide along the circumference of the second air inlet hole (512) to the seventh position overlapping with the fourth air door (62).

15. The air conditioning cabinet according to claim 13, characterized in that: When the fourth air door (62) is located at the seventh position, the second air duct door (52) is located at the sixth position, and when the fourth air door (62) is located at the eighth position, the second air duct door (52) is located at the fifth position.

16. The air conditioning cabinet according to claim 12, characterized in that: There are two second air inlet holes (512), each of which is provided with a second lower air outlet (122) corresponding to the second air inlet holes (512), and each of the second air inlet holes (512) is provided with a second rotating air door (60).

17. The air conditioning cabinet according to claim 10, characterized in that: The second fan assembly (50) comprises at least one second centrifugal fan (53), and the second centrifugal fan (53) is arranged in the second volute (51).

18. The air conditioning cabinet according to claim 13, characterized in that: The air conditioning cabinet comprises the first fan assembly (30) and the second fan assembly (50); when the second air door (42) of the first fan assembly (30) is located at the fourth position, the first air duct door (32) is located at the first position, the fourth air door (62) of the second fan assembly (50) is located at the seventh position, and the second air duct door (52) is located at the sixth position, or, When the second air door (42) is located at the third position, the first air duct door (32) is located at the second position, the fourth air door (62) is located at the eighth position, and the second air duct door (52) is located at the fifth position.

19. A method for controlling an air conditioning cabinet, the method being used to control the air conditioning cabinet according to any one of claims 13 to 18, characterized in that: The method comprises the following steps: When a cooling mode is selected through the controller of the air conditioning cabinet, the first air duct door (32) of the first fan assembly (30) is located at the second position, the second air duct door (42) is located at the third position, the second air duct door (52) of the second fan assembly (50) is located at the fifth position, and the fourth air duct door (62) is located at the eighth position. The second fan assembly (50) draws external air from the second lower air port (122) into the housing (10) to perform heat exchange with the heat exchanger (20), and then the first fan assembly (30) blows the drawn air out of the housing (10) from the first upper air port (111); When the controller of the air conditioning cabinet selects the heating mode, the first air duct door (32) of the first fan assembly (30) is located at the first position, the second air duct door (42) is located at the fourth position, the second air duct door (52) of the second fan assembly (50) is located at the sixth position, and the fourth air duct door (62) is located at the seventh position. The first fan assembly (30) draws external air from the second upper air port (112) into the housing (10) to perform heat exchange with the heat exchanger (20), and then the second fan assembly (50) blows the drawn air out of the housing (10) from the first lower air port (121).

20. The method according to claim 19, characterized in that The air conditioning cabinet also includes an air supply mode. In the air supply mode, the centrifugal fan unit introduces airflow outside the housing (10) into the housing (10) through the upper air port (11) and then discharges the airflow outside the housing (10) through the lower air port (12), or, In the air supply mode, the centrifugal fan unit introduces the airflow outside the housing (10) into the housing (10) through the lower air port (12) and then discharges the airflow outside the housing (10) through the upper air port (11), or, In the air supply mode, the first fan assembly (30) draws external airflow into the housing (10) through the second upper air port (112) and blows the air out of the housing (10) through the first upper air port (111), or, In the air supply mode, the second fan assembly (50) draws external air into the housing (10) through the second lower air outlet (122) and blows the air out of the housing (10) through the first lower air outlet (121), or, In the air supply mode, the first fan assembly (30) sucks external air into the housing (10) from the second upper air port (112), and then blows the air out of the housing (10) through the first upper air port (111); the second fan assembly (50) sucks external air into the housing (10) from the second lower air port (122), and then blows the air out of the housing (10) through the first lower air port (121); In the air supply mode, the heat exchanger (20) is in a non-operating state.

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