Top and bottom air outlet cabinet air conditioner with circulating fan and control method

Abstract

The application relates to an up-and-down air outlet cabinet air conditioner with a circulating fan and a control method. The up-and-down air outlet cabinet air conditioner with the circulating fan comprises a shell and an up-and-down air duct assembly, the shell is provided with a rear air inlet, an upper air outlet and a lower air outlet, and air ducts formed by the up-and-down air duct assembly are communicated with the rear air inlet, the upper air outlet and the lower air outlet respectively; the up-and-down air duct assembly comprises a centrifugal fan, the centrifugal fan is arranged between the upper air outlet and the lower air outlet; the centrifugal fan comprises a centrifugal fan blade, the axial side of the centrifugal fan blade is provided with a circulating fan assembly; and the shell is provided with a circulating fan air outlet opposite to the circulating fan assembly. The scheme provided by the application can accelerate the sending of cold air or hot air from the upper air outlet and the lower air outlet, can effectively realize long-distance air sending, can make up for the short-distance air sending defect of the up-and-down distributed air sending, can meet the user demand for air outlet area and air outlet distance, and can improve the user experience and comfort.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning devices, in particular to an up-and-down air outlet cabinet air conditioner with a circulating fan and a control method. BACKGROUND

[0002] The cabinet air conditioner (cabinet machine) is a kind of split air conditioner, commonly used in families and small offices. The cabinet air conditioner has the advantages of large power, strong wind force and low noise, and is usually suitable for large-area living rooms and companies. For example, when used at home, it is used in a large living room to ensure good cooling or heating effect.

[0003] With the improvement of living standards, people's requirements for air conditioner cabinet machines are also getting higher and higher. At present, the research direction of air conditioners is gradually developing towards improving user experience and comfort, etc. The up-and-down air outlet cabinet machine can effectively solve the problem of direct blowing of cold air of wall-mounted air conditioners and effectively improve the comfort of users. In recent years, the use of up-and-down air outlet cabinet machines has become more and more common. However, the current up-and-down air outlet cabinet machine has a slow air outlet rate when cooling or heating, resulting in a slow indoor temperature drop or temperature rise rate. When the user first uses it, the feeling of temperature drop or temperature rise is not obvious, which reduces the user's experience. At the same time, since the air outlets of the up-and-down air outlet cabinet machine are generally arranged above and below the cabinet machine, the air supply distance is short, and the air supply mode is relatively single, which cannot meet the user's demand for air outlet area and air outlet distance.

[0004] Therefore, it is urgent to design an up-and-down air outlet cabinet air conditioner with a circulating fan, which can accelerate the air outlet rate when cooling or heating, and can send cold air or hot air farther in cooling or heating mode, effectively making up for the shortcoming of short air supply distance of up-and-down distributed air supply. SUMMARY

[0005] In order to overcome the problems in the related art, the present application provides an up-and-down air outlet cabinet air conditioner with a circulating fan and a control method. The up-and-down air outlet cabinet air conditioner with a circulating fan and a control method can accelerate the rate of cold air or hot air outlet from the upper air outlet and the lower air outlet, and can effectively realize long-distance air supply, make up for the shortcoming of short air supply distance of up-and-down distributed air supply, meet the user's demand for air outlet area and air outlet distance, and improve the user's experience and comfort.

[0006] A first aspect of the present application provides a cabinet air conditioner with upper and lower air outlets having a circulation fan, comprising an outer shell and an upper and lower air duct assembly, wherein the outer shell is provided with a rear air inlet, an upper air outlet and a lower air outlet, and the air ducts formed by the upper and lower air duct assembly are respectively connected to the rear air inlet, the upper air outlet and the lower air outlet; the upper and lower air duct assembly comprises a centrifugal fan, and the centrifugal fan is arranged between the upper air outlet and the lower air outlet; the centrifugal fan comprises centrifugal blades, and a circulation fan assembly is provided on the axial side of the centrifugal blades; the outer shell is provided with a circulation fan outlet at a place facing the circulation fan assembly.

[0007] In one embodiment, the circulating fan assembly includes a motor mounting plate, a motor and axial flow blades; the motor mounting plate is fixed on the centrifugal blades; the motor is fixed on the motor mounting plate; and the axial flow blades are mounted on the motor shaft of the motor.

[0008] In one embodiment, the circulation fan assembly also includes a wind shield, which is rotatably disposed between the motor mounting plate and the axial fan blades; N circulation fan air inlets are provided on the motor mounting plate; N circulation fan air inlets and N circulation fan wind shield blocks are provided on the wind shield; the area of ​​one circulation fan wind shield block is greater than or equal to the area of ​​one circulation fan air inlet.

[0009] In one embodiment, an evaporator is further included; the evaporator is arranged between the centrifugal fan blades and the rear air inlet.

[0010] In one embodiment, it also includes side air inlets; the side air inlets are arranged on both sides of the circulation fan outlet and are connected to the circulation fan assembly.

[0011] In one embodiment, an air inlet baffle is further included; the air inlet baffle is movably arranged on one side of the side air inlet.

[0012] A second aspect of the present application provides a control method for a cabinet air conditioner with a circulation fan and a top-down air outlet, which is implemented based on the above-mentioned cabinet air conditioner with a circulation fan and a top-down air outlet, and specifically includes the following steps:

[0013] S1. Turn on the air conditioner and obtain the indoor temperature T 室 and set temperature T 设 ;

[0014] S2, judging the indoor temperature T 室 With the set temperature T 设 Is the difference greater than or equal to a preset value? If so, open the air inlet of the circulation fan and adjust the gear of the circulation fan to the maximum gear; if not, execute S3;

[0015] S3, judging the indoor temperature T室 whether the difference between the indoor temperature T 设 is greater than zero and less than the preset value, if yes, adjusting the circulating fan to a low gear, if no, performing S4;

[0016] S4, if the air conditioner is in a cooling mode, opening the side air inlet and closing the circulating fan air inlet.

[0017] In an embodiment, the opening of the circulating fan air inlet and the adjustment of the gear of the circulating fan to the maximum gear comprise: closing the side air inlet.

[0018] In an embodiment, when the indoor temperature T 室 is equal to the set temperature T 设 , if the air conditioner is in a heating mode, maintaining the air conditioner as it is.

[0019] In an embodiment, the preset value is 2℃.

[0020] The technical scheme provided in the present application can have the following beneficial effects: after the air conditioner is started in a cooling or heating mode, the cold air or hot air entering from the rear air inlet is sent out from the upper air outlet and the lower air outlet through the air duct formed by the upper and lower air duct assembly, at this time, the circulating fan assembly can accelerate the flow rate of the airflow, so as to accelerate the sending of the cold air or hot air from the upper air outlet and the lower air outlet, thereby realizing rapid cooling or heating of the air conditioner, and the circulating fan assembly sends the cold air or hot air from the circulating fan air outlet, which can realize long-distance air supply. Compared with the upper and lower air outlet cabinet air conditioner in the prior art which can only send air from the upper and lower air outlets, the present application uses the circulating fan assembly to not only accelerate the sending rate of the cold air or hot air from the upper air outlet and the lower air outlet, but also effectively realize long-distance air supply, which makes up for the shortcoming of short air supply distance of the upper and lower distributed air supply, meets the user's demand for air supply area and air supply distance, and greatly improves the user's experience and comfort.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the several views, and in which the exemplary embodiments of the present application are shown.

[0023] Figure 1 is a front view schematic diagram of the upper and lower air outlet cabinet air conditioner with a circulating fan according to an embodiment of the present application;

[0024] Figure 2is an explosion schematic diagram of a circulating fan assembly shown in the embodiments of the present application;

[0025] Figure 3 is a structural schematic diagram of the circulating fan when an air inlet is opened, shown in the embodiments of the present application;

[0026] Figure 4 is a structural schematic diagram of the circulating fan when an air inlet is closed, shown in the embodiments of the present application;

[0027] Figure 5 is a structural schematic diagram of the circulating fan when a side air inlet is opened, shown in the embodiments of the present application;

[0028] Figure 6 is a structural schematic diagram of the circulating fan when a side air inlet is closed, shown in the embodiments of the present application;

[0029] Figure 7 is a flow schematic diagram of a control method of an up-and-down air outlet cabinet air conditioner with a circulating fan, shown in the embodiments of the present application.

[0030] Reference signs:

[0031] 1, shell; 11, front panel; 111, circulating fan air outlet; 112, lower air outlet; 12, upper panel; 121, upper air outlet; 13, decorative side panel; 131, side air inlet; 132, air inlet baffle; 133, second driving mechanism; 21, centrifugal fan blade; 22, motor mounting plate; 221, circulating fan air inlet; 23, motor; 231, motor rotating shaft; 24, axial fan blade; 25, baffle; 251, circulating fan baffle block; 26, first driving mechanism. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present application will be described in more detail by referring to the attached drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided so that the present application is more thoroughly and completely conveyed to those skilled in the art, and the scope of the present application is fully conveyed to those skilled in the art.

[0033] The terms used in the present application are merely for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0034] It should be understood that, although the terms "first", "second", "third", etc. can be used in this application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0035] At present, the air outlet rate of the up-down air outlet cabinet machine is slow when refrigerating or heating, which leads to slow indoor temperature drop or temperature rise rate. When the user just starts to use it, the feeling of temperature drop or temperature rise is not obvious, which will reduce the user's experience. At the same time, since the air outlets of the up-down air outlet cabinet machine are generally arranged above and below the cabinet machine, the problem of short air supply distance occurs, and the air outlet mode is relatively single, which cannot meet the user's demand for air outlet area and air outlet distance.

[0036] In view of the above problems, the embodiment of the present application provides an up-down air outlet cabinet air conditioner with circulating fan, which can accelerate the rate of cold air or hot air sent out from the upper air outlet and the lower air outlet, and can effectively realize long-distance air supply, which makes up for the shortcoming of short air supply distance of up-down distributed air supply, meets the user's demand for air outlet area and air outlet distance, and improves the user's experience and comfort.

[0037] The technical scheme of the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0038] Embodiment one

[0039] Please refer to Figures 1-6 , Figure 1 is a front view schematic diagram of the up-down air outlet cabinet air conditioner with circulating fan shown in the embodiment of the present application.

[0040] The up-down air outlet cabinet air conditioner with circulating fan of the present application comprises a shell 1, an up-down air duct assembly and an evaporator.

[0041] As Figure 1As shown, the shell 1 is provided with a rear air inlet, an upper air outlet 121 and a lower air outlet 112. Specifically, the rear air inlet is arranged on the rear panel, the upper air outlet 121 is arranged on the upper panel 12, and the lower air outlet 112 is arranged at the lower end of the front panel 11. The upper and lower air duct assemblies are arranged in the area surrounded by the shell 1, and the air ducts formed thereby are in communication with the rear air inlet, the upper air outlet 121 and the lower air outlet 112, respectively. Specifically, the upper and lower air duct assemblies include a centrifugal fan, which is arranged between the upper air outlet 121 and the lower air outlet 112. The centrifugal fan includes a centrifugal fan blade 21, the axial direction of which is parallel to the front-rear direction of the air conditioner, i.e. perpendicular to the left-right direction of the air conditioner. The evaporator is arranged between the rear air inlet and the centrifugal fan blade 21, so that the centrifugal fan located between the upper air outlet 121 and the lower air outlet 112 can send the cold or hot air blown from the rear air inlet to the evaporator out of the upper air outlet 121 and the lower air outlet 112 through the air duct.

[0042] To accelerate the rate of blowing cold or hot air out of the upper air outlet 121 and the lower air outlet 112, the axial side of the centrifugal fan blade 21 is provided with a circulating fan assembly. Specifically, a circulating fan assembly is arranged between the centrifugal fan blade 21 and the front panel 11. Through the circulating fan assembly, the flow rate of the gas in the air duct can be accelerated, thereby accelerating the rate of blowing cold or hot air out of the upper air outlet 121 and the lower air outlet 112 and improving the user experience.

[0043] Further, to compensate for the short air supply distance of the current up-down air outlet cabinet air conditioner, the shell 1 is provided with a circulating fan air outlet 111 opposite the circulating fan assembly. Specifically, the circulating fan air outlet 111 is arranged opposite the circulating fan assembly between the front panel 11, so that the circulating fan assembly can send the airflow in the shell 1 out through the circulating fan air outlet 111, thereby realizing long-distance air supply in the front direction, increasing the air supply area and meeting the user's demand for multi-directional air supply.

[0044] To realize the above scheme, the circulating fan assembly includes a motor mounting plate 22, a motor 23 and an axial fan blade 24. The motor mounting plate 22 is fixed on the centrifugal fan blade 21. Specifically, the motor mounting plate 22 includes a fixed portion and an air inlet portion. The motor mounting plate 22 is fixed on the centrifugal fan blade 21 by screwing through the fixed portion. The air inlet portion is provided with N circulating fan air inlets 221. Through the N circulating fan air inlets 221, the cold or hot air from the evaporator can flow to the axial fan blade 24 and be sent out through the circulating fan air outlet 111 by the axial fan blade 24.

[0045] The motor 23 is fixed on the motor mounting plate 22, and specifically, the motor mounting plate 22 further comprises a mounting base, and the motor 23 is fixed on the mounting base; the motor 23 comprises a motor rotating shaft 231, and the axial flow fan blade 24 comprises a rotating shaft through hole, and the axial flow fan blade 24 is sleeved on the motor rotating shaft 231 of the motor 23 through the rotating shaft through hole.

[0046] In order to facilitate the control of the air inlet amount of the circulating fan air inlet 221 according to actual needs, the circulating fan assembly further comprises a baffle 25, the baffle 25 is rotatably arranged between the motor mounting plate 22 and the axial flow fan blade 24, the baffle 25 is provided with N circulating fan air inlets 221 and N circulating fan baffle blocks 251, that is, the N circulating fan air inlets 221 on the baffle 25 are exactly the same as the N circulating fan air inlets 221 on the motor mounting plate 22, and the number is also the same; the N circulating fan air inlets 221 and the N circulating fan baffle blocks 251 are arranged at intervals and uniformly arranged; in order to smoothly pass through the circulating fan baffle block 251 to block the circulating fan air inlet 221, and avoid that the cold air or hot air entering from the circulating fan air inlet 221 is blown out from the circulating fan air outlet 111, the area of one circulating fan baffle block 251 is greater than or equal to the area of one circulating fan air inlet 221, so that according to actual needs, the air inlet amount of the circulating fan air inlet 221 is controlled by rotating the baffle 25, and specifically, the circulating fan assembly further comprises a first driving mechanism 26, the first driving mechanism 26 is connected with the baffle 25 and is used for driving the baffle 25 to rotate; when the N circulating fan air inlets 221 of the baffle 25 overlap with the N circulating fan air inlets 221 on the motor mounting plate 22 by rotating the baffle 25, at this time, the N circulating fan air inlets 221 are in an open state, and the cold air or hot air can flow to the circulating fan air outlet 111 through the N circulating fan air inlets 221; when the N circulating fan baffle blocks 251 of the baffle 25 overlap with the N circulating fan air inlets 221 on the motor mounting plate 22, at this time, the N circulating fan air inlets 221 are blocked by the N circulating fan baffle blocks 251, and the N circulating fan air inlets 221 are in a closed state, and the cold air or hot air cannot flow to the circulating fan air outlet 111 through the N circulating fan air inlets 221.

[0047] In order to facilitate the increase of the air flow source of the circulating fan outlet 111 according to actual needs, the two sides of the front panel 11 are respectively provided with decorative side plates 13, and the decorative side plates 13 are provided with side air inlets 131, which are communicated with the circulating fan assembly, that is, the side air inlets 131 are communicated with the axial flow fan blades 24 and the circulating fan outlet 111; specifically, the side air inlets 131 are arranged on the decorative side plates 13 on both sides of the circulating fan outlet 111. Further, in order to facilitate the control of the air inlet amount of the side air inlets 131 according to actual needs, the decorative side plates 13 are further provided with air inlet baffles 132 and second driving mechanisms 133; the air inlet baffles 132 are movably arranged on one side of the side air inlets 131, specifically, the air inlet baffles 132 are arranged on the decorative side plates 13 through sliding rails, and the air inlet baffles 132 are driven to move by the second driving mechanisms 133, as shown in Figures 5-6 When air needs to be taken in from the side air inlets 131, the second driving mechanisms 133 drive the air inlet baffles 132 to move upwards, exposing the side air inlets 131, so that indoor air can enter from the side air inlets 131; when air does not need to be taken in from the side air inlets 131, the second driving mechanisms 133 drive the air inlet baffles 132 to move downwards, blocking the side air inlets 131, so that indoor air cannot enter from the side air inlets 131.

[0048] In the first embodiment, after the air conditioner is started in the cooling or heating mode, the cold air or hot air entering from the rear air inlet is sent out from the upper air outlet and the lower air outlet through the air duct formed by the upper and lower air duct assemblies. At this time, the circulating fan assembly can accelerate the flow rate of the air flow, thereby accelerating the cold air or hot air from the upper air outlet and the lower air outlet, and further realizing rapid cooling or heating of the air conditioner. At the same time, the circulating fan assembly sends the cold air or hot air from the circulating fan outlet, which can realize long-distance air supply. Compared with the prior art upper and lower air outlet cabinet air conditioner which can only be supplied from the upper and lower air outlets, the present application uses the circulating fan assembly, which not only accelerates the rate of cold air or hot air from the upper air outlet and the lower air outlet, but also effectively realizes long-distance air supply, making up for the shortcoming of short distance of the upper and lower distributed air supply, meeting the user's demand for air outlet area and air outlet distance, and greatly improving the user's experience and comfort.

[0049] Embodiment two

[0050] Based on the structure of the above-mentioned first embodiment, the present application further provides a control method of an upper and lower air outlet cabinet air conditioner with a circulating fan, which is realized based on the above-mentioned upper and lower air outlet cabinet air conditioner with a circulating fan, please refer to Figure 7 , which specifically includes the following steps:

[0051] S1, start the air conditioner, and obtain the indoor temperature T 室 and the set temperature T设 .

[0052] In S1, after starting the air conditioner, the indoor temperature T 室 and the set temperature T 设 , when the indoor temperature T 室 is greater than the set temperature T 设 , the air conditioner is in cooling mode, at this time, the evaporator is the condenser, the indoor air entering from the rear air inlet flows through the condenser and exchanges heat with the refrigerant of the condenser, so that the indoor air becomes cold and becomes cold air flowing to the centrifugal fan, and then the cold air is blown out of the upper air outlet and the lower air outlet through the centrifugal fan blade, thereby reducing the indoor temperature.

[0053] When the indoor temperature T 室 is less than the set temperature T 设 , the air conditioner is in heating mode, at this time, the indoor air entering from the rear air inlet flows through the evaporator and exchanges heat with the refrigerant of the condenser, so that the indoor air becomes hot and becomes hot air flowing to the centrifugal fan, and then the hot air is blown out of the upper air outlet and the lower air outlet through the centrifugal fan blade, thereby increasing the indoor temperature.

[0054] It should be noted that as long as the air conditioner is in operation, the indoor air entering from the rear air inlet flows through the evaporator (condenser) and the centrifugal fan, and then is blown out of the upper air outlet and the lower air outlet. The action continues to run.

[0055] S2, judge whether the difference between the indoor temperature T 室 and the set temperature T 设 is greater than or equal to a preset value; if yes, open the circulating fan air inlet and adjust the gear of the circulating fan to the maximum gear, if not, execute S3.

[0056] In S2, it is judged whether the difference between the indoor temperature T 室 and the set temperature T 设 is greater than or equal to a preset value, specifically, the preset value can be set to 2℃, when it is judged that the indoor temperature T 室 and the set temperature T 设When the difference between the indoor temperature T and the set temperature T is greater than or equal to a preset value, it indicates that the indoor temperature greatly differs from the set temperature, and the air conditioner is generally in the initial running state. At this time, in order to increase the speed of the cold or hot air that the user feels, the baffle is driven by the first driving mechanism, the circulating fan air inlet is opened, and the gear of the circulating fan is adjusted to the maximum gear, so that the cold or hot air blowing to the centrifugal fan can flow to the axial fan blade through the circulating fan air inlet. Through the rotation of the axial fan blade, not only the flow of the cold or hot air can be accelerated, so that the cold or hot air is quickly discharged from the upper air outlet and the lower air outlet to achieve faster cooling or heating, but also the cold or hot air can be blown out from the circulating fan air outlet through the axial fan blade, so that the long-distance air supply in the front direction is realized, further meeting the user's demand for air outlet area and air outlet distance, improving the user's experience, and making up for the problem that the air supply distance is short when the air is discharged upward and downward in the prior art.

[0057] In order to further improve the user's experience and comfort, when the air conditioner is just started, the indoor temperature T 室 greatly differs from the set temperature T 设 . In order to avoid that the indoor air entering from the side air inlet is directly blown out from the circulating fan air outlet through the axial fan blade, for example, when the air conditioner is in the cooling mode, because the indoor temperature is high at this time, if the side air inlet is opened, the indoor air entering from the side air inlet will be directly blown out from the circulating fan air outlet through the axial fan blade, which will bring hot air to the user and reduce the user's comfort. Similarly, when the air conditioner is in the heating mode, because the indoor temperature is low at this time, if the side air inlet is opened, the indoor air entering from the side air inlet will be directly blown out from the circulating fan air outlet through the axial fan blade, which will also bring cold air to the user and reduce the user's comfort. In order to avoid the above situation, the circulating fan air inlet is opened and the side air inlet is closed at the same time. Specifically, the air inlet baffle is driven to move downward by the second driving mechanism, so that the side air inlet is covered, and the indoor air cannot enter the air conditioner from the side air inlet.

[0058] S3, after the circulating fan air inlet is opened, comprising: judging whether the difference between the indoor temperature T 室 and the set temperature T 设 is greater than zero and less than the preset value, if yes, the circulating fan is adjusted to the low wind gear, and if no, S4 is executed.

[0059] In S3, when the difference between the indoor temperature T 室 and the set temperature T 设When the difference is greater than zero and less than the preset value, it means that the air conditioner has been cooling or heating for a period of time, but has not yet reached the temperature set by the user. At this time, if the circulation fan continues to run at the maximum wind speed, it will cause excessive wind flow and affect the user's comfort. At this time, the gear of the circulation fan is lowered to reduce the wind speed of the cold air or hot air blown out from the upper air outlet, the lower air outlet and the circulation fan outlet.

[0060] S4. If the air conditioner is in cooling mode, open the side air inlet and close the circulating fan air inlet.

[0061] In S4, the indoor temperature T 室 With the set temperature T 设 If the difference is equal to zero, it means that the indoor temperature has reached the temperature set by the user. At this time, the circulating fan inlet can be closed to save energy. Specifically, the wind baffle is driven by the first drive mechanism to close the circulating fan inlet. At the same time, because the user's sensitivity to temperature rise is lower than that to temperature drop, if the air conditioner is in cooling mode, the side air inlet can be opened. Specifically, the air inlet baffle is driven upward by the second drive mechanism, thereby opening the side air inlet. Indoor air can enter the axial fan blades through the side air inlet and then be blown out from the circulating fan outlet. This allows the user to feel the wind without feeling the temperature difference, further improving the user's comfort. If the air conditioner is in heating mode, the air conditioner can remain in its original state, that is, the side air inlet is closed and the circulating fan is running at a low windshield.

[0062] In the embodiment of the present application, according to the indoor temperature T 室 With the set temperature T 设 The air supply state of the air conditioner is adjusted by the difference. For example, when the indoor temperature is greatly different from the preset temperature, by opening the circulation fan air inlet, not only the speed of blowing out cold air or hot air from the upper air outlet and the lower air outlet can be accelerated, the indoor temperature drop or temperature rise can be accelerated, and long-distance air supply can be achieved; when the indoor temperature is less different from the preset temperature, the wind speed can be reduced by adjusting the circulation fan to a low wind speed, thereby further improving the user's comfort; by opening or closing the side air inlet, the problem of blowing hot air to the user during cooling or blowing cold air to the user during heating is effectively avoided, further improving the user experience and comfort.

[0063] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated again here.

[0064] The solutions of the present application have been described in detail above with reference to the accompanying drawings. In the above-described embodiments, the description of each embodiment is focused on respectively, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments. It should also be known by those skilled in the art that the actions and modules involved in the specification are not necessarily required by the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined and reduced in sequence according to actual needs, and the modules in the device embodiments of the present application can be combined, divided and reduced according to actual needs.

[0065] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architecture, function and operation of the system and method according to the embodiments of the present application. In this regard, each block in the flowchart or block diagram can represent a module, a program segment or a part of code containing one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks can also occur in different order from that marked in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can also be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0066] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical application or improvement of the technology in the market of the embodiments, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A cabinet air conditioner with a circulation fan and upper and lower air outlets, comprising a housing (1) and upper and lower air duct components, wherein the housing (1) is provided with a rear air inlet, an upper air outlet (121) and a lower air outlet (112), and the air ducts formed by the upper and lower air duct components are respectively connected to the rear air inlet, the upper air outlet (121) and the lower air outlet (112); and characterized in that: The upper and lower air duct components include a centrifugal fan, and the centrifugal fan is arranged between the upper air outlet (121) and the lower air outlet (112); The centrifugal fan comprises a centrifugal fan blade (21), and a circulation fan assembly is provided on the axial side of the centrifugal fan blade (21); A circulation fan air outlet (111) is provided on the housing (1) facing the circulation fan assembly; The circulating fan assembly comprises a motor mounting plate (22), a motor (23) and an axial flow fan blade (24); The motor mounting plate (22) is fixed on the centrifugal fan blade (21); The motor (23) is fixed on the motor mounting plate (22); The axial flow fan blade (24) is sleeved on the motor shaft (231) of the motor (23); The circulating fan assembly further comprises a windshield (25), wherein the windshield (25) is rotatably arranged between the motor mounting plate (22) and the axial flow fan blade (24); The motor mounting plate (22) is provided with N circulating fan air inlets (221); The windshield (25) is provided with N circulation fan air inlets (221) and N circulation fan windshield blocks (251); The area of ​​one of the circulation fan wind shielding blocks (251) is greater than or equal to the area of ​​one of the circulation fan air inlets (221).

2. The cabinet air conditioner with upper and lower air outlets and a circulation fan according to claim 1, characterized in that: Also includes an evaporator; The evaporator is arranged between the centrifugal fan blade (21) and the rear air inlet.

3. The cabinet air conditioner with upper and lower air outlets and a circulation fan according to claim 1, characterized in that: Also included is a side air inlet (131); The side air inlets (131) are arranged on both sides of the circulation fan air outlet (111) and are in communication with the circulation fan assembly.

4. The cabinet air conditioner with upper and lower air outlets and a circulation fan according to claim 3, characterized in that: Also included is an air inlet baffle (132); The air inlet baffle (132) is movably arranged on one side of the side air inlet (131).

5. A control method for a cabinet air conditioner with upper and lower air outlets and a circulation fan, characterized in that: The implementation of the cabinet air conditioner with upper and lower air outlets having a circulation fan according to any one of claims 1 to 4 specifically includes the following steps: S1. Turn on the air conditioner and obtain the indoor temperature T 室 and set temperature T 设 ; S2, judging the indoor temperature T 室 With the set temperature T 设 Is the difference greater than or equal to the preset value? If so, open the air inlet of the circulation fan and adjust the gear of the circulation fan to the maximum gear; if not, execute S3; S3, judging the indoor temperature T 室 With the set temperature T 设 Is the difference between the values ​​of and is greater than zero and less than the preset value? If so, adjust the circulation fan to a low wind speed; if not, execute S4; S4. If the air conditioner is in cooling mode, open the side air inlet and close the circulating fan air inlet.

6. The control method of a cabinet air conditioner with upper and lower air outlets and a circulation fan according to claim 5, characterized in that: The process of opening the circulating fan air inlet and adjusting the gear position of the circulating fan to the maximum gear includes: closing the side air inlet.

7. The control method of a cabinet air conditioner with upper and lower air outlets and a circulation fan according to claim 5, characterized in that: When the indoor temperature T 室 With the set temperature T 设 When the difference is equal to zero, including: if the air conditioner is in heating mode, the air conditioner is maintained in its original state.

8. The control method of a cabinet air conditioner with upper and lower air outlets and a circulation fan according to claim 7, characterized in that: The preset value is 2°C.

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