Air port device, central air conditioner and control method

Abstract

The present disclosure provides an air outlet device, a central air conditioner and a control method. The air outlet device can include a first casing and a second casing, the second casing is movably connected with the first casing, a baffle structure is arranged in the second casing, and the baffle structure can control the opening and closing of a second airflow passage. When the second casing is in a first position, a third airflow passage is formed between the first casing and the second casing, and the third airflow passage is communicated with a first airflow passage to form a first air duct. When the second casing is in a second position, the first casing and the second casing are tightly attached, and the first airflow passage is communicated with the second airflow passage to form a second air duct. The air outlet direction of the first air duct is perpendicular to the air outlet direction of the second air duct. The single air outlet device of the present disclosure can meet the requirements of various conditions such as subsidence type wall-attached shower type air supply refrigeration, carpet type downward blowing heating, and return air of refrigeration and heating.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air conditioning, in particular to an air outlet device, a central air conditioner and a control method. BACKGROUND

[0002] Fan coil is a kind of central air conditioner terminal equipment with high cost performance in indoor unit, which is widely used in commercial places such as airports, high-speed rail stations, shopping malls, conference rooms and offices. Through the cooperation of air outlet and fan coil, indoor air supply and return air are realized. With the development of indoor unit products such as fan coil, reversible air supply indoor unit can realize forward flat blowing and wall bathing type refrigeration before refrigeration, and downward carpet type heating after heating, so as to directly send the processed air to the user activity area and greatly improve the comfort of the environment. However, the current conventional air inlet and return air outlets only realize independent air inlet and return functions, and cannot cooperate with reversible air supply indoor unit for reverse air supply. SUMMARY

[0003] In view of this, in order to solve the technical problem that the air outlet device in the prior art can only realize independent air inlet and return functions, the present disclosure provides an air outlet device, a central air conditioner and a control method.

[0004] According to a first aspect of the embodiments of the present disclosure, an air outlet device is provided, which is arranged in a mounting part where the air outlet device is to be installed. The air outlet device comprises a first shell and a second shell which are sleeved, the first shell is fixedly connected with the mounting part, the first shell comprises a first air flow channel, the second shell comprises a second air flow channel, a baffle structure is arranged in the second shell, the baffle structure is used for controlling the conduction and closing of the second air flow channel, and the second shell is movably connected with the first shell, so that the second shell has a first position and a second position.

[0005] When the second shell is in the first position, a third air flow channel is formed between the first shell and the second shell, and the third air flow channel communicates with the first air flow channel, so as to form a first air duct of the air outlet device. When the second shell is in the second position, the first shell and the second shell are tightly attached, and the first air flow channel communicates with the second air flow channel, so as to form a second air duct of the air outlet device.

[0006] Among them, the air outlet of the first air duct faces a first direction, and the air outlet of the second air duct faces a second direction, and the first direction and the second direction are perpendicular to each other.

[0007] In an optional embodiment,

[0008] The part of the first shell sleeved with the second shell is referred to as a first part, and the part of the second shell sleeved with the first shell is referred to as a second part. The periphery of the first part and the periphery of the second part are both configured as a circular arc curve.

[0009] In an optional implementation,

[0010] The circular arc curve of the first part and the circular arc curve of the second part are the same in curvature and / or angle.

[0011] In an optional implementation,

[0012] The air port device comprises a first driving device and a first transmission mechanism. The first driving device drives the second shell to move relative to the first shell through the first transmission mechanism.

[0013] In an optional implementation,

[0014] The first transmission mechanism comprises at least one of the following: a gear and rack mechanism, a hydraulic mechanism, and a cam rocker mechanism.

[0015] In an optional implementation,

[0016] The air port device comprises a filter assembly. The filter assembly is fixedly connected with the second shell. The filter assembly is located on a side of the baffle structure away from the air port of the second air duct. The filter assembly comprises a filter port and a filter screen. The filter port is located in the second air flow channel. The filter screen has a first state and a second state.

[0017] In the first state, the filter screen is located at the position of the filter port, and filters the gas passing through the filter port. In the second state, the filter screen is offset from the position of the filter port, and no longer filters the gas passing through the filter port.

[0018] In an optional implementation,

[0019] The filter assembly comprises a filter panel. The filter port is arranged on the filter panel. The filter panel is provided with two oppositely arranged guide grooves. The filter screen comprises two filter half screens. The two filter half screens correspond to the two guide grooves one by one. The guide grooves are used to guide the movement of the corresponding filter half screens, so that the filter screen is switched between the first state and the second state.

[0020] In an optional implementation,

[0021] The filter assembly comprises a second driving device corresponding to the filter half-net and a second transmission mechanism, the second driving device drives the filter net to switch between the first state and the second state through the second transmission mechanism.

[0022] In an alternative embodiment,

[0023] The second transmission mechanism comprises at least one of the following: a gear and rack mechanism, a hydraulic mechanism and a cam rocker mechanism.

[0024] In an alternative embodiment,

[0025] The baffle structure comprises a guide panel and at least one guide vane arranged on the guide panel, the guide panel is fixedly connected with the second shell, and the guide panel is arranged in the second airflow channel close to the air inlet of the second air duct, and the guide vane is used to control the opening and closing of the second airflow channel.

[0026] According to a second aspect of the embodiments of the present disclosure, a central air conditioner is provided, the central air conditioner comprises at least one air outlet device as described in any one of the first aspect, the air outlet device is installed on a ceiling surface, and in the air outlet device, the air outlet of the first air duct is parallel to the ceiling surface, and the air outlet of the second air duct is perpendicular to the ceiling surface.

[0027] In an alternative embodiment,

[0028] The central air conditioner comprises a reversible air supply indoor unit, a first air pipe and a second air pipe, the first air pipe and the second air pipe are respectively communicated with two ends of the reversible air supply indoor unit, and the free ends of the first air pipe and the second air pipe are respectively provided with the air outlet device and communicated with the first airflow channel of the corresponding air outlet device.

[0029] According to a third aspect of the embodiments of the present disclosure, a control method is provided, the control method is applied to the central air conditioner as described in any one of the second aspect, the air outlet device of the central air conditioner has a closed state, a cooling air outlet state, a heating air outlet state and a return air state, and the control method comprises the following steps:

[0030] When the air outlet device is in the closed state, the baffle structure is controlled to close the second airflow channel, and the second shell is controlled to be in a second position;

[0031] When the air outlet device is in the cooling air outlet state, the baffle structure is controlled to close the second airflow channel, and the second shell is controlled to be in a first position;

[0032] controlling the baffle structure to guide the second air flow channel when the air outlet device is in the heating air outlet state, and controlling the second shell to be in the second position;

[0033] controlling the baffle structure to guide the second air flow channel when the air outlet device is in the return air state, and controlling the second shell to be in the second position.

[0034] In an optional implementation,

[0035] The air outlet device comprises a filter assembly, and the control method comprises:

[0036] controlling the filter assembly to be in a first state when the air outlet device is in any state of the closed state, the refrigeration air outlet state and the return air state;

[0037] controlling the filter assembly to be in a second state when the air outlet device is in the heating air outlet state.

[0038] In an optional implementation,

[0039] The baffle structure comprises a guide vane, and the control method comprises:

[0040] controlling the return air direction of the guide vane to be away from the air outlet of the central air conditioner when the air outlet device is in the return air state.

[0041] In an optional implementation,

[0042] The central air conditioner comprises a reversible air supply indoor unit, a first air pipe and a second air pipe, the first air pipe and the second air pipe are respectively communicated with two ends of the reversible air supply indoor unit, and the free ends of the first air pipe and the second air pipe are provided with the air outlet device and communicated with the first air flow channel of the corresponding air outlet device, wherein the air outlet device communicated with the first air pipe is recorded as a front air outlet device, the air outlet device communicated with the second air pipe is recorded as a rear air outlet device, and the control method comprises:

[0043] controlling the states of the front air outlet device and the rear air outlet device based on the state of the reversible air supply indoor unit; wherein the state of the reversible air supply indoor unit at least comprises a shutdown state, a refrigeration state and a heating state.

[0044] The technical scheme provided by the embodiment of the present disclosure can include the following beneficial effects: in the present disclosure, the air port device can include a sleeved first shell and a second shell, and the first shell is fixedly connected with a mounting part of the air port device to be installed, and the second shell is movably connected with the first shell, wherein the first shell is provided with a first air flow channel, the second shell is provided with a second air flow channel, and a baffle structure is arranged in the second shell, and the baffle structure can control the conduction and closing of the second air flow channel. When the second shell is in a first position, a third air flow channel is formed between the first shell and the second shell, and the third air flow channel is communicated with the first air flow channel to form a first air duct. When the second shell is in a second position, the first shell and the second shell are tightly attached to each other, so that the third air flow channel cannot be formed, and the first air flow channel is communicated with the second air flow channel to form a second air duct. The air port direction of the first air duct is perpendicular to the air port direction of the second air duct. Based on this, when the air port device is applied to a central air conditioner, when it is installed on a ceiling surface, the air port direction of the first air duct can be parallel to the ceiling surface, and the air port direction of the second air duct can be perpendicular to the ceiling surface, that is, the air port direction of the first air duct is in a horizontal direction, which can be used to realize subsurface wall-bathing type cooling air supply, and the air port direction of the second air duct is in a vertical direction, which can be used to realize carpet type down-blowing heating. The single air port device of the present disclosure can meet the requirements of subsurface wall-bathing type cooling air supply, carpet type down-blowing heating, and return air of cooling and heating, and when the front air port and the rear air port of the central air conditioner are provided with the above-mentioned air port device, the air port device can be well matched with the reversible air supply room indoor unit of the central air conditioner, which can realize reversible air supply, meet the requirements of subsurface wall-bathing type cooling air supply and carpet type down-blowing heating, and better meet the use experience of users.

[0045] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0046] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without any creative labor.

[0048] One or more embodiments are illustrated by exemplary pictures in the drawings corresponding thereto, and these exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings in the drawings do not constitute a proportional limitation.

[0049] Figure 1 is an exploded view of a register according to an example embodiment.

[0050] Figure 2 is a schematic view of a register according to an example embodiment in a closed state.

[0051] Figure 3 is a schematic view of a register according to an example embodiment in a cooling air out state.

[0052] Figure 4 is a schematic view of a register according to an example embodiment in a heating air out state.

[0053] Figure 5 is a schematic view of a register according to an example embodiment in a return air state.

[0054] Figure 6 is a schematic view of a first housing in a register according to an example embodiment.

[0055] Figure 7 is a schematic view of a second housing in a register according to an example embodiment.

[0056] Figure 8 is a schematic view of a filter assembly in a register according to an example embodiment.

[0057] Figure 9 is a schematic view of an air duct of a central air conditioner according to an example embodiment.

[0058] Figure 10 is a schematic view of air flow in a reversible air supply indoor unit of a central air conditioner in a cooling state according to an example embodiment.

[0059] Figure 11 is a schematic view of air flow in a reversible air supply indoor unit of a central air conditioner in a heating state according to an example embodiment.

[0060] wherein:

[0061] 1. A register; 11. A first housing; 111. A first portion; 12. A second housing; 121. A second portion; 13. A baffle structure; 131. A baffle panel; 132. A baffle blade; 14. A first driving device; 15. A first transmission mechanism; 151. An inner housing rack; 152. An outer housing driving gear; 16. A filter assembly; 161. A filter panel; 162. A filter screen; 163. A guide slot; 164. A second driving device; 165. A second transmission mechanism;

[0062] 2, reversible air supply chamber indoor unit; 3, first air duct; 4, second air duct;

[0063] 1a, front air outlet device; 1b, rear air outlet device;

[0064] 10, first air flow channel; 20, second air flow channel; 30, third air flow channel. DETAILED DESCRIPTION

[0065] To make the objectives, technical solutions, and superiorities of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort belong to the scope of the present application.

[0066] The following disclosure provides many different embodiments, or examples, for implementing different aspects, embodiments and / or examples of the present application. For purposes of simplicity and clarity, the description is divided into sections. Of course, it is to be understood that not all of the features described in the sections are necessary in every implementation, and that one can implement the present application in as few as one of the described embodiments. In addition, although a management system implementing the present application will be principally described as being implemented on a computer system, those skilled in the art will recognize that the present application can be implemented in a variety of environments.

[0067] For ease of description, spatial relative terms can be used in the description to describe the relative position relationship or movement condition of one element or feature with respect to another element or feature as shown in the drawings, such as "internal", "external", "inboard", "outboard", "under", "below", "on", "above", "front", "back", and the like. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both the up and down positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0068] It is to be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be a random change, and the component layout can be more complex.

[0069] The advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure herein. The present application can also be implemented or applied by different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, not for limiting the protection scope of the present application.

[0070] In order to solve the technical problem that the air outlet device in the prior art can only realize independent air inlet and outlet functions, the present disclosure provides an air outlet device, a central air conditioner and a control method.

[0071] In the present disclosure, the air outlet device can include a sleeved first shell and a second shell, and the first shell is fixedly connected with a mounting part where the air outlet device is to be installed, and the second shell is movably connected with the first shell. The first shell is provided with a first air flow passage, and the second shell is provided with a second air flow passage. A baffle structure is arranged in the second shell, and the baffle structure can control the conduction and closing of the second air flow passage. When the second shell is in a first position, a third air flow passage is formed between the first shell and the second shell, and the third air flow passage communicates with the first air flow passage to form a first air duct. When the second shell is in a second position, the first shell and the second shell are tightly attached, so that the third air flow passage cannot be formed, and the first air flow passage communicates with the second air flow passage to form a second air duct. The air outlet direction of the first air duct is perpendicular to the air outlet direction of the second air duct. Based on this, when the air outlet device is applied to a central air conditioner, when it is installed on a ceiling surface, the air outlet direction of the first air duct can be parallel to the ceiling surface, and the air outlet direction of the second air duct can be perpendicular to the ceiling surface, i.e. the air outlet direction of the first air duct is horizontal, which can be used to realize subsurface wall-bathing type cooling air supply, and the air outlet direction of the second air duct is vertical, which can be used to realize carpet type down-blowing heating. The single air outlet device of the present disclosure can meet the requirements of subsurface wall-bathing type cooling air supply, carpet type down-blowing heating, and return air of cooling and heating, etc. When the front air outlet and the rear air outlet of the central air conditioner are both provided with the above-mentioned air outlet device, it can be well matched with the reversible air supply indoor unit of the central air conditioner, which can realize reversible air supply, meet the requirements of subsurface wall-bathing type cooling air supply and carpet type down-blowing heating, and better meet the user's experience.

[0072] In one example embodiment, referring to Figures 1 to 5 As shown in the drawings, a register device 1 is provided, and a central air conditioner comprising the register device 1 and a control method of the central air conditioner.

[0073] The register device 1 can be arranged in an arrangement portion where the register device 1 is to be arranged, which can be a ceiling surface (e.g. a surface of a ceiling), or other flat or non-flat surfaces, and can be selected according to actual needs, which is not limited herein.

[0074] The register device 1 can comprise a first casing 11 and a second casing 12. When the register device 1 is arranged in the arrangement portion, the first casing 11 is fixedly connected with the arrangement portion, and the second casing 12 is movably connected with the first casing 11, so that the second casing 12 has a first position and a second position.

[0075] The first casing 11 comprises a first airflow passage 10, and the second casing 12 comprises a second airflow passage 20. A baffle structure 13 is arranged in the second casing 12, and is used to control the opening and closing of the second airflow passage 20.

[0076] When the second casing 12 is in the first position, a third airflow passage 30 is formed between the first casing 11 and the second casing 12, i.e. there is a certain interval between the casing walls of the first casing 11 and the second casing 12, so as to form the third airflow passage 30. The third airflow passage 30 is in communication with the first airflow passage 10, so as to form a first air duct of the register device 1.

[0077] When the second casing 12 is in the second position, the first casing 11 and the second casing 12 are tightly fitted, i.e. the casing walls of the first casing 11 and the second casing 12 are tightly fitted, so that the third airflow passage 30 is not formed. At this time, the first airflow passage 10 is in communication with the second airflow passage 20, so as to form a second air duct of the register device 1.

[0078] The register of the first air duct faces a first direction, and the register of the second air duct faces a second direction, and the first direction and the second direction are perpendicular to each other. For example, the first direction can be a horizontal direction, so that the first air duct can be used to realize flat blowing and wall-bathing type cooling. The second direction can be a vertical direction, so that the second air duct can be used to realize downward blowing and carpet type heating.

[0079] When the air outlet device 1 is applied to a central air conditioner, at least one air outlet device 1 described above can be arranged in the central air conditioner. The installation part of the air outlet device 1 can be a ceiling surface, that is, the air outlet device 1 can be installed on the ceiling surface, that is, the first shell 11 of the air outlet device 1 is fixedly connected with the ceiling surface, and the connection mode can be buckle connection, fastener (such as a screw or a bolt) connection, adhesive connection, or a combination of multiple modes, which is not limited.

[0080] When the air outlet device 1 is installed on the ceiling surface, the air outlet of the first air duct is parallel to the ceiling surface, and the air outlet of the second air duct is perpendicular to the ceiling surface. It should be noted that the central air conditioner is generally arranged in the ceiling space of a room, and the ceiling surface refers to the lower end surface for enclosing the ceiling space. The ceiling surface is generally arranged horizontally, and the horizontal arrangement herein refers to the horizontal arrangement within the error range.

[0081] In this embodiment, when the air duct device is installed on the ceiling surface, the air outlet of the first air duct is horizontally arranged, which can be used to achieve the submerged wall-hugging shower type cooling air supply, and the air outlet of the second air duct is vertically arranged, which can be used to achieve the carpet type down-blowing heating. That is, this embodiment can meet the requirements of the submerged wall-hugging shower type cooling air supply, the carpet type down-blowing heating, and the return air of cooling and heating through the air outlet device 1.

[0082] When the air outlet device 1 is applied to a central air conditioner, the air outlet device 1 can have a closed state, a cooling air outlet state, a heating air outlet state, and a return air state.

[0083] Referring to Figure 1 and 2 When the air outlet device 1 is in the closed state, the baffle structure 13 is controlled to close the second air flow channel 20, and the second shell 12 is controlled to be in the second position. In this case, the first shell 11 and the second shell 12 are closely attached, and the third air flow channel 30 is not formed, and the first air duct is not formed. Although the first air flow channel 10 and the second air flow channel 20 are communicated to form the second air duct, the second air flow channel 20 is closed by the baffle structure 13, so the second air duct is also truncated, and the air outlet device 1 no longer performs air outlet or air inlet.

[0084] Referring to Figure 1 and 3As shown, when the air outlet device 1 is in the cooling air outlet state, the baffle structure 13 is controlled to close the second air flow channel 20, and the second shell 12 is controlled to be in the first position, in which case, the third air flow channel 30 is formed between the first shell 11 and the second shell 12, so that the air outlet device 1 forms a first air duct, and at the same time, the second air flow channel 20 is closed by the baffle structure 13, so that the air flow in the air outlet device 1 can only be discharged through the first air duct, and the air outlet of the first air duct is in a horizontal direction, so that the wall-hugging shower type air supply cooling can be realized.

[0085] Referring to Figure 1 and 4 As shown, when the air outlet device 1 is in the cooling air outlet state, the baffle structure 13 is controlled to close the second air flow channel 20, and the second shell 12 is controlled to be in the first position, in which case, the third air flow channel 30 is formed between the first shell 11 and the second shell 12, so that the air outlet device 1 forms a first air duct, and at the same time, the second air flow channel 20 is closed by the baffle structure 13, so that the air flow in the air outlet device 1 can only be discharged through the first air duct, and the air outlet of the first air duct is in a horizontal direction, so that the wall-hugging shower type air supply cooling can be realized.

[0086] Referring to Figure 1 and 5 As shown, when the air outlet device 1 is in the cooling air outlet state, the baffle structure 13 is controlled to close the second air flow channel 20, and the second shell 12 is controlled to be in the first position, in which case, the third air flow channel 30 is formed between the first shell 11 and the second shell 12, so that the air outlet device 1 forms a first air duct, and at the same time, the second air flow channel 20 is closed by the baffle structure 13, so that the air flow in the air outlet device 1 can only be discharged through the first air duct, and the air outlet of the first air duct is in a horizontal direction, so that the wall-hugging shower type air supply cooling can be realized.

[0087] That is, in this embodiment, when the front air outlet and the rear air outlet of the central air conditioner are both provided with the above-mentioned air outlet device 1, the air outlet device 1 can be well matched with the reversible air supply indoor unit 2 of the central air conditioner, so that the reversible air supply can be realized, and the requirements of the sinking wall-hugging shower type air supply cooling and the carpet type down blowing heating can be met, and the user's use experience can be better met.

[0088] In one exemplary embodiment, referring to Figures 1 to 7As shown, a register device 1 is provided, and a central air conditioner comprising the register device 1 is provided. In this embodiment, the part of the first shell 11 sleeved with the second shell 12 is referred to as a first part 111, and the part of the second shell 12 sleeved with the first shell 11 is referred to as a second part 121. The periphery of the first part 111 and the periphery of the second part 121 are both configured as a circular arc curve.

[0089] That is, at least part of the shell wall in the first shell 11 is used to cooperate with the second shell 12 to achieve the sleeving of the first shell 11 and the second shell 12. Correspondingly, at least part of the shell wall in the second shell 12 is used to cooperate with the first shell 11 to achieve the sleeving of the first shell 11 and the second shell 12. The part of the first shell 11 used to sleeve the second shell 12 is referred to as the first part 111, and the part of the second shell 12 used to sleeve the first shell 11 is referred to as the second part 121. The first part 111 is at least part of the shell wall of the first shell 11, and the second part 121 is at least part of the shell wall of the second shell 12. The sleeving of the first shell 11 and the second shell 12 is the sleeving of the first part 111 and the second part 121.

[0090] The periphery of the first part 111 is configured as a circular arc curve, and the periphery of the second part 121 is also configured as a circular arc curve. On the one hand, when the second shell 12 is in the second position, the first part 111 and the second part 121 can better achieve close fitting. On the other hand, when the second shell 12 is in the first position, the third air flow passage 30 formed between the first part 111 and the second part 121 is more conducive to the transmission of gas, and can well reduce noise. It should be noted that in this embodiment, the curvature of the periphery of the inner shell can also be optimized through simulation tests and the like, thereby playing the same role as the volute on the centrifugal fan, and the air duct resistance and noise can be further improved.

[0091] The curvature and / or angle of the circular arc curve of the first part 111 and the circular arc curve of the second part 121 are the same. It should be noted that the curvature is a physical quantity that describes the bending degree of a curve. For a circular arc, the curvature = 1 / radius (i.e., the curvature is inversely proportional to the radius). Therefore, "the curvature is the same" is equivalent to "the radius is exactly the same", that is, the bending steepness is the same. The "angle" here refers to the "central angle" of the circular arc (i.e., the angle formed by the connection line between the two ends of the circular arc and the center of the circle, which is in degrees or radians). When the curvature and the angle of the circular arc curve of the first part 111 and the circular arc curve of the second part 121 are the same, the close fitting of the inner shell and the outer shell around the periphery can be better ensured during heating and air supply, and the air duct resistance can be better reduced during air supply. However, the air duct end of the first air duct needs to be set to a horizontal state to ensure horizontal air supply during air supply.

[0092] In one example embodiment, referring to Figures 1 to 8 As shown in the drawings, a register device 1 is provided, as well as a central air conditioner comprising the register device 1 and a control method of the central air conditioner. In this embodiment, the register device 1 can comprise a first driving device 14 and a first transmission mechanism 15, and the first driving device 14 drives the second shell 12 to move relative to the first shell 11 through the first transmission mechanism 15.

[0093] The first transmission mechanism 15 can comprise at least one of a gear and rack mechanism, a hydraulic mechanism, and a cam rocker mechanism, and can also comprise other transmission mechanisms, which are not limited.

[0094] For example, the first shell 11 can be an outer shell, and the second shell 12 can be an inner shell, and the outer shell is sleeved outside the inner shell. The first driving device 14 can comprise an outer shell driving motor, and the first transmission mechanism 15 can be a gear and rack mechanism, which can comprise an outer shell driving gear and an inner shell rack 151. The outer shell of the register state is fixedly installed on the ceiling, and the outer surface thereof is provided with the outer shell driving motor, which is installed on the outer shell driving motor fixing plate directly connected to the outer shell. The outer shell driving gear is directly connected to the outer shell driving motor. The inner shell is provided with the inner shell rack 151, and the cooperation between the outer shell driving gear connected by the outer shell driving motor and the inner shell rack 151 on the inner shell can realize the up-down movement of the inner shell relative to the outer shell, thereby controlling the opening and closing of the first air duct (which can be used as a refrigeration air duct). At the same time, the outer shell is provided with an activity port of the inner shell rack 151 to ensure the up-down movement of the inner shell rack 151. In addition, the first driving device 14 can further comprise a driving motor protection shell for protecting the outer shell driving motor and sealing the same to avoid the influence of dust.

[0095] The assembly of the outer shell driving motor and the gear and rack mechanism can be provided with one set, two sets or more sets. When two sets are provided, the two sets of the above-mentioned assembly can be respectively arranged on both sides of the first air flow channel 10 of the outer shell to better ensure the stability of the driving of the inner shell.

[0096] It should be noted that other assemblies or devices can also be used in the register device 1 to realize the movement of the second shell 12 relative to the first shell 11, such as a telescopic air cylinder to realize the up-down movement of the second shell 12 relative to the first shell 11.

[0097] In this embodiment, when the register device 1 is applied to the central air conditioner, the first driving device 14 and the first transmission mechanism 15 are provided, so that the position of the second shell 12 can be automatically adjusted according to actual needs, thereby realizing the automatic control of whether the first air duct is conducted, and better improving the user experience.

[0098] In addition, in the embodiment, the baffle structure 13 can include a guide panel 131 and at least one guide vane 132 arranged on the guide panel 131 (for example, when the guide panel 131 is provided with a plurality of guide vanes 132, the plurality of guide vanes 132 can form a guide louver), the guide panel 131 is fixedly connected with the second shell 12, and the guide panel 131 is arranged in the second air flow channel 20 close to the second air outlet, and the guide vane 132 is used to control the opening and closing of the second air flow channel 20.

[0099] In addition, in the embodiment, the baffle structure 13 can include a guide panel 131 and at least one guide vane 132 arranged on the guide panel 131 (for example, when the guide panel 131 is provided with a plurality of guide vanes 132, the plurality of guide vanes 132 can form a guide louver), the guide panel 131 is fixedly connected with the second shell 12, and the guide panel 131 is arranged in the second air flow channel 20 close to the second air outlet, and the guide vane 132 is used to control the opening and closing of the second air flow channel 20.

[0100] In addition, in the embodiment, the baffle structure 13 can include a guide panel 131 and at least one guide vane 132 arranged on the guide panel 131 (for example, when the guide panel 131 is provided with a plurality of guide vanes 132, the plurality of guide vanes 132 can form a guide louver), the guide panel 131 is fixedly connected with the second shell 12, and the guide panel 131 is arranged in the second air flow channel 20 close to the second air outlet, and the guide vane 132 is used to control the opening and closing of the second air flow channel 20.

[0101] For example, when the central air conditioner is provided with two air outlet devices 1, one of which is used as an outlet air outlet for cooling or heating, and the other is used as a return air outlet, when the air outlet device 1 used as the return air outlet is in the return air state, the guide angle of the guide vane 132 can be controlled to be away from the direction of the above-mentioned outlet air outlet, so as to avoid the situation of indoor circulating air short circuit.

[0102] In one example embodiment, referring to Figures 1 to 8 The air outlet device 1, the central air conditioner comprising the air outlet device 1, and the control method of the central air conditioner are provided. In the embodiment, the air outlet device 1 comprises a filter assembly 16, the filter assembly 16 is fixedly connected with the second shell 12, the filter assembly 16 is located on the side of the baffle structure 13 away from the second air outlet, and the filter assembly 16 comprises a filter port and a filter screen 162, the filter port is located in the second air flow channel 20, and the filter screen 162 has a first state and a second state.

[0103] In the first state, the filter screen 162 is located at the position of the filter port for filtering the gas passing through the filter port. In this state, the filter screen 162 is accurately moved to and covers the filter port. All the gas flowing through the filter port must pass through the filter screen 162, thereby being purified. When this state is applied to the return air condition, indoor air can be effectively filtered, the internal air conditioning system is kept clean, and the air supply air quality is improved.

[0104] In the second state, the filter screen 162 is misaligned with the position of the filter port, and the gas passing through the filter port is no longer filtered. In this state, the filter screen 162 can be controlled to move so as to be misaligned with the position of the filter port. At this time, the filter port area is unobstructed, and the airflow does not need to penetrate the filter screen and can pass directly. When this state is applied to the air outlet condition, air resistance can be minimized to ensure air supply volume and efficiency.

[0105] In the first state, the filter screen 162 is located at the position of the filter port for filtering the gas passing through the filter port. In this state, the filter screen 162 is accurately moved to and covers the filter port. All the gas flowing through the filter port must pass through the filter screen 162, thereby being purified. When this state is applied to the return air condition, indoor air can be effectively filtered, the internal air conditioning system is kept clean, and the air supply air quality is improved.

[0106] In this embodiment, the filter panel 161 can serve as the basic frame of the filter assembly 16 and is fixedly installed inside the second housing 12 (the inner shell). The filter panel 161 is provided with a filter port, which is the core passage of the airflow. The filter panel 161 is provided with two oppositely arranged guide grooves 163. The two guide grooves 163 can be designed as linear sliding grooves, and their positions determine the movement trajectory of the filter screen 162. The filter screen 162 is composed of two independent filter half-screens. The two filter half-screens correspond to the two guide grooves 163. Each filter half-screen is accurately embedded in the corresponding guide groove 163 through the buckle or sliding block structure thereon and can slide along the guide groove 163.

[0107] In this embodiment, the filter screen 162 is replaced by two filter half-screens that can move to both sides, so that the filter screen 162 can be hidden on both sides of the filter port in the non-working state (the second state), without the need to reserve more additional storage space for the entire filter screen, thereby achieving a perfect balance between function and volume. In addition, the design of the double guide grooves 163 provides each filter half-screen with an independent and accurate movement trajectory, ensuring that the filter half-screens will not deviate, lift or twist during movement, greatly reducing the risk of jamming or stagnation due to long-term use or dust accumulation, and improving the reliability and service life of the system.

[0108] The filter assembly 16 comprises a second driving device 164 corresponding to the filter half-meshes and a second transmission mechanism 165. The second driving device 164 drives the filter mesh 162 to switch between the first state and the second state through the second transmission mechanism 165. The second transmission mechanism 165 comprises at least one of a gear and rack mechanism, a hydraulic mechanism, and a cam rocker mechanism, and can also comprise other transmission mechanisms.

[0109] For example, the second driving device 164 can comprise a filter mesh driving motor, and the second transmission mechanism 165 can be a gear and rack mechanism, which can comprise a filter mesh gear and a filter mesh rack. The filter mesh driving motor can be mounted on the filter panel 161, and the filter half-meshes can translate in the corresponding guide grooves 163. A reinforcing strip can be arranged at the middle position of the filter mesh 162, and the filter mesh rack can be mounted on the reinforcing strip. The filter mesh gear is directly connected to the filter mesh driving motor. The cooperation of the filter mesh rack and the filter mesh gear can realize the sliding or rolling of the filter half-meshes along the guide grooves 163. The movement of the two filter half-meshes can realize the opening (second state) and closing (first state) of the filter mesh 162, that is, the switching of the filter mesh 162 between the first state and the second state.

[0110] When the air outlet device 1 is in any state of the closed state, the refrigeration air outlet state, and the return air state, the filter assembly 16 can be controlled to be in the first state. For example, when the air outlet device 1 is in the return air state, if the two filter half-meshes are located on both sides of the filter port at this time, that is, the filter mesh 162 is in the second state, the two filter mesh driving motors can be started to drive the filter half-meshes to move towards the filter port through the cooperation of the corresponding filter mesh gear and filter mesh rack, so that the two filter half-meshes are closed, and the filter mesh 162 is adjusted to the first state to filter the return air. The indoor return air enters the indoor unit return air through the filter mesh 162 after passing through the second air duct, so as to ensure the cleanliness of the return air.

[0111] It should be noted that for the closed state, since there is no air flow in the second air flow channel 20, the filter assembly 16 can also be maintained in the current state. That is, if the filter assembly 16 is currently in the first state, after the air outlet state is switched to the closed state, the filter assembly 16 can continue to be maintained in the first state; if the filter assembly 16 is currently in the second state, after the air outlet state is switched to the closed state, the filter assembly 16 can continue to be maintained in the second state. For the refrigeration air outlet state, since the baffle structure 13 needs to be controlled to close the second air flow channel 20 at this time, there is no air flow in the second air flow channel 20, so the filter assembly 16 can also be maintained in the current state, which will not be repeated here.

[0112] In the heating air outlet state of the air outlet device 1, the filtering assembly 16 can be controlled to be in the second state. For example, when the air outlet device 1 is in the heating air outlet state, if the two filtering half nets are located at the filtering port at this time, that is, the filtering net 162 is in the first state, the two filtering net driving motors can be started, so that the corresponding filtering net gears and filtering net racks are matched to drive the filtering half nets to move to both sides of the filtering port, so that the filtering is in the second state, to avoid the filtering net 162 blocking the air outlet of the hot air, and to better ensure the smoothness of the air outlet.

[0113] In this embodiment, the cooperation between the split filtering half nets, the guide groove 163, the driving device and the transmission mechanism can realize intelligent switching of the filtering function. In the air outlet working condition, the filtering net 162 can be completely removed to completely eliminate the wind resistance, ensure the air supply volume and distance, improve the refrigeration / heating efficiency and directly reduce the system energy consumption. In the return air condition, the filtering net 162 can be accurately closed to ensure that all return air is filtered. In addition, the double guide grooves 163 can provide accurate independent motion trajectories for the two filtering half nets, which, in combination with the driving motor and the gear and rack mechanism, can well ensure the synchronous reverse motion of the two half nets, fundamentally avoid the risk of jamming and greatly improve the mechanical reliability. The split hidden design enables the filtering net 162 to be folded to both sides of the filtering port in the non-working state, without the need for additional storage space, perfectly solving the contradiction between multi-functional integration and device miniaturization.

[0114] That is, the switching of the filtering net 162 of this embodiment is intelligently linked with the air conditioner operation mode (refrigeration / heating / return air), realizing full-automatic “non-sensing” operation. The filtering net 162 only works in the return air, so that the service life of the filtering net 162 is significantly prolonged, effectively reducing the user's maintenance frequency and cost. This design ensures the return air cleaning while ensuring the air outlet performance, realizing the unity of high efficiency and air quality.

[0115] In one example embodiment, referring to Figures 1 to 11 It is shown that an air outlet device 1, a central air conditioner comprising the above-mentioned air outlet device 1, and a control method of the central air conditioner are provided. In this embodiment, the central air conditioner comprises a reversible air supply indoor unit 2, a first air pipe 3 and a second air pipe 4, the first air pipe 3 and the second air pipe 4 are respectively communicated with two ends of the reversible air supply indoor unit 2, and the free ends of the first air pipe 3 and the second air pipe 4 are provided with the air outlet device 1 and communicated with the first air flow channel 10 of the corresponding air outlet device 1, wherein the air outlet device 1 communicated with the first air pipe 3 is marked as a front air outlet device 1a, and the air outlet device 1 communicated with the second air pipe 4 is marked as a rear air outlet device 1b.

[0116] Each air outlet state can include at least four working states, which are respectively marked as a closed state, a refrigeration air outlet state, a heating air outlet state and a return air state.

[0117] In the closed state, the first air duct and the second air duct are both in the closed state, the second shell 12 of the air outlet device 1 can be in the first position so that the first shell 11 and the second shell 12 are tightly fitted, and the controllable guide vane 132 can be in the closed state, and the filter screen 162 can be in the first state, so as to better ensure the sealing in the air duct when the reversible air supply indoor unit 2 is not started, and reduce the influence of dust in the ceiling on the air duct.

[0118] In the cooling air outlet state, the second shell 12 can be moved to the first position, the third air flow channel 30 is formed between the first shell 11 and the second shell 12 and communicates with the first air flow channel 10 to form the first air duct for cooling air outlet, in addition, the filter screen 162 can be controlled to be in the first state, and the guide vane 132 is controlled to be closed. At this time, the cold air can be blown horizontally to the indoor through the first air duct, and the bathing type air supply of cold air adhering to the wall can be realized.

[0119] In the heating air outlet state, the second shell 12 can be moved to the second position, the first air duct is closed due to the tight fitting of the first shell 11 and the second shell 12, the filter screen 162 is opened by being translated to the two sides under the driving of the filter screen driving motor from the middle closed state, so that the filter screen 162 is in the second state, and the resistance in the heating air outlet state is reduced. At the same time, the guide vane 132 is opened, the hot air is blown downward to the indoor through the middle second air duct, the hot air can be directly sent to the user activity area, the carpet type heating air supply is realized, and the direction of the heating air supply can be controlled by controlling the angle of the guide vane 132, so as to better meet the different needs of the user.

[0120] In the return air state, the second shell 12 can be controlled to be in the second position, the filter screen 162 can be controlled to be in the first state, and the guide vane 132 is opened, the indoor return air enters the return air of the reversible air supply indoor unit 2 through the filter screen 162 in the middle second air duct, and the return air direction can be controlled by controlling the angle of the guide vane 132, so as to avoid the indoor circulating air short circuit.

[0121] It should be noted that when the indoor circulating air short circuit occurs, for the air outlet device 1 in the return air state, the return air direction can be adjusted by adjusting the angle of the guide vane 132. For example, when cooling, the front air outlet device is horizontal jet air outlet, if the guide vane 132 of the rear air outlet device 1b is directed to the air outlet direction at this time, the return air short circuit occurs, at this time, the direction of the guide vane 132 can be adjusted to be away from the air outlet direction, that is, the inlet air direction (return air direction) of the guide vane 132 can be adjusted to be vertical or away from the front guide vane, so as to avoid the circulating air short circuit.

[0122] Wherein, the central air conditioner, the state of reversible air supply indoor unit 2, the state of front air outlet device 1a and rear air outlet device 1b can be controlled; wherein, the state of reversible air supply indoor unit 2 includes at least off state, refrigeration state and heating state.

[0123] Wherein, when reversible air supply indoor unit 2 is in off state, front air outlet device 1a and rear air outlet device 1b are controlled to be in closed state; when reversible air supply indoor unit 2 is in refrigeration state, front air outlet device 1a is controlled to be in refrigeration out air state, and rear air outlet device 1b is controlled to be in return air state; when reversible air supply indoor unit 2 is in heating state, front air outlet device 1a is controlled to be in return air state, and rear air outlet device 1b is controlled to be in heating out air state.

[0124] It should be noted that the user can also set the working state of air outlet device 1 according to actual needs. For example, when reversible air supply indoor unit is in refrigeration state, front air outlet device 1a and rear air outlet device 1b are controlled to be in heating out air state, at this time, indoor air directly enters indoor unit through the second air duct of rear air outlet device 1b, and after heat exchange, it directly blows into the indoor from the second air duct of front air outlet device 1a, indoor air does not pass through filter screen 162, which can reduce system resistance and achieve rapid cooling of indoor.

[0125] In this embodiment, each air outlet device 1 can adjust its working state according to the state of reversible air supply indoor unit 2. For example, when reversible air supply indoor unit 2 enters refrigeration state, front air outlet device 1a is automatically adjusted to refrigeration air supply state according to communication signal, and rear air outlet device 1b is automatically adjusted to refrigeration and heating return air state according to communication signal. In addition, air outlet device 1 can also be provided with temperature sensor (not shown in the figure) or pressure sensor (not shown in the figure) in the air duct, so as to realize independent control of air outlet device 1 without receiving signal of reversible air supply indoor unit 2.

[0126] Wherein, the value collected by pressure sensor is used to determine the opening and closing of the unit. For example, if the pressure sensor is 0, it indicates that reversible air supply indoor unit 2 is in off state; if the pressure sensor has a value, it indicates that reversible air supply indoor unit 2 is in open state. At the same time, the temperature values of different air outlets can be collected by temperature sensor, and the specific running state of reversible air supply indoor unit 2 and the return air state of air outlet device 1 can be determined by comparing the temperature values of different air outlets. For example, if the gas temperature at the positions of front air outlet device 1a and rear air outlet device 1b is greater than 20℃, and the gas temperature at the position of rear air outlet device 1 is greater than that at the position of front air outlet device, it indicates that it is in heating state of rear air outlet, so front air outlet device 1 can be adjusted to return air state, and rear air outlet device can be adjusted to heating air state.

[0127] It should be noted that in addition to adjusting the state of different air port devices 1 through the above-mentioned manner, other manners can also be used for adjustment, which is not limited.

[0128] In this embodiment, the central air conditioner can intelligently distribute the roles (outlet air / return air) of the front and rear air port devices 1b according to the state of the reversible air supply indoor unit 2, ensuring the high coordination of the air supply airflow and the function of the reversible air supply indoor unit 2. When cooling, the front air port device 1b supplies air and the rear air port device 1b returns air, and when heating, the rear air port device 1b supplies air and the front air port device 1b returns air, perfectly realizing the “shower cooling” and “carpet heating” effects, greatly improving the environmental comfort and the user experience.

[0129] Among them, by accurately controlling the position of the second shell 12 of each air port device 1, the state of the air guide blade 132 and the filter screen 162, the central air conditioner always provides the optimal air duct for the current working condition. For example, when heating and supplying air, the filter screen 162 is automatically moved away to eliminate air resistance, and when returning air, the filter screen 162 is automatically closed to ensure cleanliness, thereby significantly improving the air supply efficiency and the overall energy efficiency of the system while ensuring the function.

[0130] In addition, the central air conditioner of this embodiment can not only be controlled by receiving host signals, but also can independently determine the running state and adjust the state of the air port device 1 with the help of temperature and pressure sensors in the air duct. This double protection mechanism can enhance the reliability and adaptability of the central air conditioner, and even in the case of communication interruption, it can still maintain basic intelligent operation.

[0131] Moreover, in this embodiment, by independently adjusting the angle of the air guide blade 132 of the return air port, the return air direction can be accurately guided, effectively avoiding the “air short circuit” phenomenon of direct mixing of return air and supply air, ensuring sufficient circulation of indoor air, more uniform temperature field distribution, and improving the cooling / heating effect and efficiency.

[0132] In addition, in addition to the preset automatic control, the central air conditioner can also allow users to manually configure according to specific needs. For example, in the cooling state, the lower blowing function of the double air port device 1 can be forcibly turned on to achieve rapid indoor cooling, providing a more flexible and personalized environmental control means.

[0133] Among them, when the reversible air supply indoor unit 2 is in the shutdown state, by controlling the close fit between the shells, as well as the closure of the air guide blade 132 and the filter screen 162, the dust in the ceiling space is effectively isolated, keeping the air duct inside clean and improving the hygiene standard and long-term operation stability of the system.

[0134] That is, through the precise cooperation and intelligent linkage of the reversible air supply indoor unit 2, the double air port device 1 and its internal movable components (shells, blades, filter screens 162), this embodiment constructs an efficient, comfortable, flexible and reliable central air conditioner, which can improve the functionality and user experience of the central air conditioner.

[0135] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0136] It should be noted that the terms "one implementation," "embodiment," "exemplary embodiment," and "some embodiments" used in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0137] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or air conditioning apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or air conditioning apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or air conditioning apparatus that includes said element.

[0138] The above embodiments are merely preferred embodiments provided to fully illustrate this application, and the scope of protection of this application is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on this application are all within the scope of protection of this application.

Claims

1. A tuyere arrangement, characterized in that The air outlet device is arranged in a mounting portion where the air outlet device is to be mounted, the air outlet device comprising a sleeved first shell and a second shell, the first shell being fixedly connected with the mounting portion, the first shell comprising a first airflow passage, the second shell comprising a second airflow passage, a baffle structure being arranged in the second shell, the baffle structure being used for controlling the conduction and the closing of the second airflow passage, the second shell being movably connected with the first shell so that the second shell has a first position and a second position. When the second shell is in the first position, there is a certain interval between the shell wall of the first shell and the shell wall of the second shell in the sleeved fit, so as to form a third airflow passage between the first shell and the second shell, and the third airflow passage is communicated with the first airflow passage to form a first air duct of the air outlet device; when the second shell is in the second position, the first shell and the second shell are in close contact, so that the third airflow passage is not formed between the first shell and the second shell, and the first airflow passage is communicated with the second airflow passage to form a second air duct of the air outlet device. The air outlet of the first air duct faces a first direction, the air outlet of the second air duct faces a second direction, the first direction and the second direction are perpendicular to each other; when the first direction is a horizontal direction and the second direction is a vertical direction, the first air duct is used for realizing flat blowing, wall-bathing and bathing type refrigeration, and the second air duct is used for realizing downward blowing and carpet type heating. When the air outlet device is applied to a central air conditioner, the air outlet device has a closed state, a refrigeration air outlet state, a heating air outlet state and a return air state; when the air outlet device is in the closed state, the baffle structure closes the second airflow passage and controls the second shell to be in the second position; when the air outlet device is in the refrigeration air outlet state, the baffle structure closes the second airflow passage and controls the second shell to be in the first position; when the air outlet device is in the heating air outlet state, the baffle structure conducts the second airflow passage and controls the second shell to be in the second position; when the air outlet device is in the return air state, the baffle structure conducts the second airflow passage and controls the second shell to be in the second position.

2. The tuyere arrangement of claim 1, wherein The part of the first shell sleeved with the second shell is referred to as a first part, and the part of the second shell sleeved with the first shell is referred to as a second part, and the periphery of the first part and the periphery of the second part are both configured as a circular arc curve.

3. The tuyere arrangement of claim 2, wherein The curvature and / or angle of the circular arc curve of the first part and the circular arc curve of the second part are the same.

4. The tuyere assembly of claim 1, wherein, The air outlet device comprises a first driving device and a first transmission mechanism, the first driving device driving the second shell to move relative to the first shell through the first transmission mechanism.

5. The tuyere assembly of claim 4, wherein, The first transmission mechanism comprises at least one of the following: a gear and rack mechanism, a hydraulic mechanism and a cam rocker mechanism.

6. The tuyere assembly of claim 1, wherein The air outlet device comprises a filtering assembly fixedly connected with the second shell, the filtering assembly is located on the side of the baffle structure away from the air outlet of the second air duct, and the filtering assembly comprises a filtering opening and a filtering screen, the filtering opening is located in the second air flow channel, and the filtering screen has a first state and a second state; In the first state, the filtering screen is located at the position of the filtering opening to filter the gas passing through the filtering opening; in the second state, the filtering screen is staggered from the position of the filtering opening and no longer filters the gas passing through the filtering opening.

7. The tuyere assembly of claim 6, wherein The filtering assembly comprises a filtering panel, the filtering opening is arranged on the filtering panel, the filtering panel is provided with two oppositely arranged guide grooves, the filtering screen comprises two filtering half-screens, and the two filtering half-screens correspond to the two guide grooves one by one; the guide grooves are used for guiding the movement of the corresponding filtering half-screens, so that the filtering screen is switched between the first state and the second state.

8. The tuyere assembly of claim 7, wherein, The filtering assembly comprises second driving devices corresponding to the above filtering half-screens and a second transmission mechanism, the second driving devices drive the filtering screen to switch between the first state and the second state through the second transmission mechanism.

9. The tuyere assembly of claim 8, wherein, The second transmission mechanism comprises at least one of the following: a gear and rack mechanism, a hydraulic mechanism and a cam rocker mechanism.

10. The tuyere arrangement of any of claims 1-9, wherein The baffle structure comprises a guide panel and at least one guide blade arranged on the guide panel, the guide panel is fixedly connected with the second shell, and the guide panel is arranged in the second air flow channel at a position close to the air outlet of the second air duct, and the guide blade is used for controlling the opening and closing of the second air flow channel.

11. A central air conditioner, characterized by comprising: The central air conditioner comprises at least one air outlet device according to any one of claims 1-10, the air outlet device is installed on a ceiling surface, and in the air outlet device, the air outlet of the first air duct is parallel to the ceiling surface, and the air outlet of the second air duct is perpendicular to the ceiling surface.

12. The central air conditioner according to claim 11, wherein The central air conditioner comprises a reversible air supply indoor unit, a first air pipe and a second air pipe, the first air pipe and the second air pipe are respectively communicated with two ends of the reversible air supply indoor unit, and the free ends of the first air pipe and the second air pipe are provided with the air outlet device and are communicated with the first air flow channels of the corresponding air outlet devices.

13. A control method characterized by, The control method is applied to the central air conditioner according to claim 11 or 12, the air outlet device of the central air conditioner has a closed state, a refrigeration air outlet state, a heating air outlet state and a return air state, and the control method comprises: When the air outlet device is in the closed state, the baffle structure is controlled to close the second air flow channel, and the second shell is controlled to be in a second position; When the air outlet device is in the refrigeration air outlet state, the baffle structure is controlled to close the second air flow channel, and the second shell is controlled to be in a first position; When the air outlet device is in the heating air outlet state, the baffle structure is controlled to open the second air flow channel, and the second shell is controlled to be in the second position; When the air outlet device is in the return air state, the baffle structure is controlled to open the second air flow channel, and the second shell is controlled to be in the second position.

14. The control method according to claim 13, wherein The air outlet device comprises a filter assembly, and the control method comprises: When the air outlet device is in any of the closed state, the refrigeration air outlet state and the return air state, the filter assembly is controlled to be in a first state; When the air outlet device is in the heating air outlet state, the filter assembly is controlled to be in a second state.

15. The control method according to claim 13, wherein The baffle structure comprises a guide vane, and the control method comprises: When the air outlet device is in the return air state, the return air direction of the guide vane is controlled to be away from the air outlet of the central air conditioner.

16. The control method according to any one of claims 13 to 15, characterized by, The central air conditioner comprises a reversible air supply indoor unit, a first air duct and a second air duct, the first air duct and the second air duct are respectively in communication with two ends of the reversible air supply indoor unit, and the free ends of the first air duct and the second air duct are respectively provided with the air outlet device and are in communication with the first air flow channel of the corresponding air outlet device, wherein the air outlet device connected with the first air duct is referred to as a front air outlet device, the air outlet device connected with the second air duct is referred to as a rear air outlet device, and the control method comprises: Based on the state of the reversible air supply indoor unit, the states of the front air outlet device and the rear air outlet device are controlled; wherein the state of the reversible air supply indoor unit at least comprises a shutdown state, a refrigeration state and a heating state.

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