Fresh air component for air conditioner and air conditioner

Abstract

The application discloses a fresh air component for an air conditioner and the air conditioner, and the fresh air component comprises a fresh air shell, a centrifugal fan, a first switching device and a second switching device, the fresh air shell comprises a volute part, a first air outlet part and a second air outlet part, the centrifugal fan blows air from the first air outlet part when rotating forwardly and blows air from the second air outlet part when rotating reversely, the first switching device is in a first switching state in which an inlet end of the first air outlet part is opened and an inlet end of the second air outlet part is closed, the first switching device is in a second switching state in which the inlet end of the first air outlet part is closed and the inlet end of the second air outlet part is opened, the second switching device is in a third switching state in which an air inlet is communicated with an indoor air inlet area, and the second switching device is in a fourth switching state in which the air inlet is communicated with an outdoor ventilation area. According to the fresh air component, the exhaust function can be realized without sacrificing the fresh air function, and the fresh air component can avoid new holes or expanded holes on the wall.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and in particular to a fresh air component for an air conditioner and the air conditioner. BACKGROUND

[0002] In the use of air conditioners, in order to ensure the cooling or heating effect, the doors and windows of the house need to be closed, and thus the indoor carbon dioxide gradually increases and the oxygen gradually decreases due to the internal circulation of the air conditioner system, and the indoor air quality seriously decreases. Therefore, some air conditioners in the related art have a fresh air system that can exchange air, and the fresh air system generally includes a fresh air fan and an exhaust fan, and a fresh air pipe and an exhaust pipe, when the fresh air fan works, the fresh air pipe inhales outdoor fresh air, and when the exhaust fan works, the fresh air system exhausts indoor air from the exhaust pipe. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a fresh air component for an air conditioner, which can realize the exhaust function without sacrificing the fresh air function and can avoid new drilling or reaming on the wall.

[0004] The present application further proposes an air conditioner having the above fresh air component.

[0005] The fresh air component for an air conditioner according to the first aspect of the present application comprises: a fresh air shell, the fresh air shell comprising a volute portion, a first air outlet portion and a second air outlet portion, the volute portion having an air inlet on the shaft side, the first air outlet portion and the second air outlet portion being arranged on the peripheral wall surface of the volute portion at intervals in the circumferential direction, the fresh air shell having an indoor air inlet area, an indoor air outlet area and an outdoor ventilation area, the indoor air inlet area and the outdoor ventilation area being adapted to communicate with the air inlet, the indoor air outlet area being adapted to communicate with the first air outlet portion, and the outdoor ventilation area being adapted to communicate with the second air outlet portion; a centrifugal fan, the centrifugal fan being arranged in the volute portion, the centrifugal fan blowing air from the first air outlet portion when rotating in the forward direction, and blowing air from the second air outlet portion when rotating in the reverse direction; a first switching device, the first switching device comprising a first switching state and a second switching state, in the first switching state, the inlet end of the first air outlet portion is open and the inlet end of the second air outlet portion is closed, and in the second switching state, the inlet end of the first air outlet portion is closed and the inlet end of the second air outlet portion is open; a second switching device, the second switching device comprising a third switching state and a fourth switching state, in the third switching state, the air inlet communicates with the indoor air inlet area, and in the fourth switching state, the air inlet communicates with the outdoor ventilation area.

[0006] The fresh air component according to the embodiment of the present application realizes the switching between the fresh air state and the exhaust air state through the forward and reverse rotation of one centrifugal fan, the switching of the air path of two switching devices, thereby meeting the dual function requirements of fresh air and exhaust air, the fresh air pipe can be bidirectionally and asynchronously ventilated, the new hole or the expanded hole in the wall is avoided, and the cost and the overall structure volume are effectively controlled due to the use of only one centrifugal fan.

[0007] In some embodiments, the first switching device includes a first switch door and a second switch door, the first switch door moves at the first air outlet part to shield or avoid opening the inlet end of the first air outlet part, and the second switch door moves at the second air outlet part to shield or avoid opening the inlet end of the second air outlet part.

[0008] In some embodiments, the first switch door is formed as a first curved door matched with the profile at the inlet end of the first air outlet part, and the second switch door is formed as a second curved door matched with the profile at the inlet end of the second air outlet part.

[0009] In some embodiments, the first curved door slides in the circumferential direction in the volute part, and the second curved door slides in the circumferential direction in the volute part.

[0010] In some embodiments, the fresh air shell further includes a first air inlet shell part arranged on the side of the volute part close to the air inlet in the axial direction to communicate with the air inlet, a communication port is arranged between the first air inlet shell part and the second air outlet part, and the second switching device includes a third switch door switching the communication port.

[0011] In some embodiments, the indoor air inlet area is formed on the first air inlet shell part, and the second switching device further includes a fourth switch door switching the indoor air inlet area switch.

[0012] In some embodiments, one side of the volute part in the axial direction has the air inlet and the first air inlet shell part, or both sides of the volute part in the axial direction have the air inlet and the first air inlet shell part.

[0013] In some embodiments, both sides of the volute part in the axial direction have the air inlet, one side of the volute part in the axial direction has the first air inlet shell part, the other side of the volute part in the axial direction has a second air inlet shell part, the indoor air inlet area is formed on the second air inlet shell part, and the second switching device further includes a fourth switch door switching the indoor air inlet area switch.

[0014] In some embodiments, an air treatment assembly is arranged in the first air inlet shell part, and the air treatment assembly includes at least one of a purification component, a humidification component, and a temperature adjustment component.

[0015] In some embodiments, the indoor air inlet area is formed on the first air inlet shell part, the second switching device further comprises a fourth switch door switching the indoor air inlet area switch, the air treatment assembly divides the inner cavity of the first air inlet shell part into a first cavity and a second cavity located on two sides of the air treatment assembly, the communication port communicates with the first cavity, and the indoor air inlet area and the air inlet port both communicate with the second cavity.

[0016] In some embodiments, the second switching device further comprises a fifth switching state, in which the air inlet port communicates with the indoor air inlet area and the outdoor ventilation area.

[0017] According to the air conditioner of the second aspect of the embodiments of the present application, the temperature adjusting component and the fresh air component for the air conditioner according to the first aspect of the embodiments of the present application are included.

[0018] According to the air conditioner of the embodiments of the present application, by setting the fresh air component for the air conditioner of the first aspect of the embodiments, the exhaust function can be realized without sacrificing the fresh air function, and the new hole or the expanded hole on the wall can be avoided.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view of the fresh air component according to one embodiment of the present application;

[0021] Figure 2 is Figure 1 is a perspective view of the fresh air component shown in FIG. 1 in a fresh air state;

[0022] Figure 3 is Figure 2 is a sectional view of the fresh air component shown in FIG. 1;

[0023] Figure 4 is Figure 2 is a perspective view of the fresh air component shown in FIG. 1;

[0024] Figure 5 is Figure 1 is a perspective view of the fresh air component shown in FIG. 1 in an exhaust state;

[0025] Figure 6 is Figure 5 is a sectional view of the fresh air component shown in FIG. 1;

[0026] Figure 7 is Figure 5 is a perspective view of the fresh air component shown in FIG. 1.

[0027] Reference signs:

[0028] Fresh air component 100

[0029] Fresh air housing 1

[0030] Indoor air inlet area 101; indoor air outlet area 102; outdoor ventilation area 103; communication port 104

[0031] Volute part 11; air inlet 111; first volute tongue 112; second volute tongue 113

[0032] First air outlet part 12; second air outlet part 13; first air inlet housing part 14

[0033] First chamber 141; second chamber 142

[0034] Centrifugal fan 2; fresh air pipe 3; first switch door 41; second switch door 42

[0035] Third switch door 51; fourth switch door 52; air handling assembly 6; sixth switch door 7 DETAILED DESCRIPTION

[0036] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein like reference numerals refer to like elements or elements with similar functions throughout the figures. The embodiments described below are exemplary and intended to provide an explanation of the application, not a limitation of the application. Thus, it will be apparent to one skilled in the art that changes can be made without departing from the scope of the application.

[0037] The disclosure that follows provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of the various examples are described in terms of specific placement of components and / or arrangements of specific components. It will, of course, be appreciated that in the development of any such actual implementation, numerous implementation-specific decisions must be made in order to achieve the design criteria for the given implementation. These implementation-specific decisions may vary from one implementation to another, and can depend, for example, on various design constraints, including compliance with business- related, government-related, and / or other constraints and / or requirements. These implementation-specific decisions also may vary from one implementation to another, and can depend, for example, on various design constraints, including compliance with business-related, government-related, and / or other constraints and / or requirements. As such, the disclosure that follows is merely exemplary in nature and is not intended to limit the application or the application thereof. Additionally, the various embodiments presented herein are not necessarily mutually exclusive. That is, various embodiments may

[0038] Hereinafter, with reference to the drawings, a fresh air component 100 for an air conditioner according to an embodiment of the first aspect of the present application is described.

[0039] As Figures 1-4As shown, the fresh air component 100 comprises a fresh air shell 1 and a centrifugal fan 2, the fresh air shell 1 comprises a volute portion 11, a first air outlet portion 12 and a second air outlet portion 13, the volute portion 11 has an air inlet 111 at the axial side, the first air outlet portion 12 and the second air outlet portion 13 are arranged on the peripheral wall surface of the volute portion 11 at intervals in the circumferential direction, the centrifugal fan 2 is arranged in the volute portion 11, the centrifugal fan 2 blows air from the first air outlet portion 12 when rotating in the normal direction, and blows air from the second air outlet portion 13 when rotating in the reverse direction.

[0040] It should be noted that "normal direction" and "reverse direction" are only used to express that the rotation directions of the centrifugal fan 2 are opposite, and do not limit the directions of the normal direction and the reverse direction, for example, when the normal direction is clockwise, the reverse direction is counterclockwise, and for example, when the normal direction is counterclockwise, the reverse direction is clockwise, which will not be exemplified here.

[0041] It can be understood that, in combination Figure 3 , the junction of the first air outlet portion 12 and the volute portion 11 has a first volute tongue 112 to ensure that the airflow in the volute portion 11 can flow out from the first air outlet portion 12 when the centrifugal fan 2 rotates in the normal direction, and the junction of the second air outlet portion 13 and the volute portion 11 has a second volute tongue 113 to ensure that the airflow in the volute portion 11 can flow out from the second air outlet portion 13 when the centrifugal fan 2 rotates in the reverse direction.

[0042] In addition, it is worth noting that when the centrifugal fan 2 rotates in the normal direction, in order to improve the reliability of the airflow in the volute portion 11 flowing out from the first air outlet portion 12, the inlet end 131 of the second air outlet portion 13 can be closed to avoid the airflow in the volute portion 11 leaking from the second air outlet portion 13, and for the same reason, when the centrifugal fan 2 rotates in the reverse direction, in order to improve the reliability of the airflow in the volute portion 11 flowing out from the second air outlet portion 13, the inlet end 121 of the first air outlet portion 12 can be closed to avoid the airflow in the volute portion 11 leaking from the first air outlet portion 12.

[0043] The inlet end 121 of the first air outlet portion 12 refers to one end of the first air outlet portion 12 connected to the volute portion 11, and the outlet end 122 of the first air outlet portion 12 refers to one end of the first air outlet portion 12 away from the volute portion 11, when the centrifugal fan 2 rotates in the normal direction, the airflow in the volute portion 11 flows into the first air outlet portion 12 from the inlet end 121 of the first air outlet portion 12, and flows out of the first air outlet portion 12 from the outlet end 122 of the first air outlet portion 12.

[0044] The inlet end 131 of the second air outlet portion 13 refers to one end of the second air outlet portion 13 connected to the volute portion 11, and the outlet end 132 of the second air outlet portion 13 refers to one end of the second air outlet portion 13 away from the volute portion 11, when the centrifugal fan 2 rotates in the reverse direction, the airflow in the volute portion 11 flows into the second air outlet portion 13 from the inlet end 131 of the second air outlet portion 13, and flows out of the second air outlet portion 13 from the outlet end 132 of the second air outlet portion 13.

[0045] As shown in Figures 1-4 The fresh air shell 1 has an indoor air inlet area 101, an indoor air outlet area 102 and an outdoor ventilation area 103. The indoor air inlet area 101 is adapted to communicate with the indoor space, and the indoor air is adapted to enter the fresh air shell 1 through the indoor air inlet area 101. However, the indoor air inlet area 101 is not necessarily exposed on the appearance surface of the air conditioner, i.e. the indoor air inlet area 101 can be exposed on the appearance surface of the air conditioner or not.

[0046] The indoor air outlet area 102 is adapted to communicate with the indoor space, and the air in the fresh air shell 1 is adapted to be discharged into the indoor space through the indoor air outlet area 102. However, the indoor air outlet area 102 is not necessarily exposed on the appearance surface of the air conditioner, i.e. the indoor air outlet area 102 can be exposed on the appearance surface of the air conditioner or not. For example, in some optional embodiments, when the indoor air outlet area 102 is not exposed on the appearance surface of the air conditioner, the indoor air outlet area 102 can communicate with the heat exchange air duct through a communication air duct in the air conditioner, and the air flow from the indoor air outlet area 102 is sent into the heat exchange air duct through the communication air duct, and then is sent into the indoor space together with the heat exchange air flow in the heat exchange air duct. Of course, the present application is not limited to this, when the indoor air outlet area 102 is not exposed on the appearance surface of the air conditioner, the indoor air outlet area 102 can also communicate with other positions through the communication air duct in the air conditioner, for example, can also communicate with the humidification air duct, or the purification air duct, or the fresh air outlet on the air conditioner, which will not be listed here.

[0047] The outdoor ventilation area 103 is adapted to communicate with the outdoor space, and the outdoor air is adapted to enter the fresh air shell 1 through the outdoor ventilation area 103, and the air in the fresh air shell 1 is also adapted to be discharged to the outdoor space through the outdoor ventilation area 103. Optionally, the outdoor ventilation area 103 can communicate with the outdoor space through the fresh air pipe 3, for example, the indoor end of the fresh air pipe 3 is connected to the outdoor ventilation area 103 on the fresh air shell 1, and the outdoor end of the fresh air pipe 3 can pass through the reserved hole in the wall to extend to the outdoor space, so as to realize the communication between the outdoor ventilation area 103 and the outdoor space through the fresh air pipe 3.

[0048] As shown in Figures 1-4As shown, both the indoor air intake area 101 and the outdoor ventilation area 103 are adapted to communicate with the air inlet 111, so that when the centrifugal fan 2 is operating, the volute 11 can draw in airflow from at least one of the indoor air intake area 101 and the outdoor ventilation area 103 through the air inlet 111. More specifically, when the air inlet 111 is communicated with the indoor air intake area 101, the volute 11 can draw in airflow from the indoor environment through the indoor air intake area 101 when the centrifugal fan 2 is rotating; when the air inlet 111 is communicated with the outdoor ventilation area 103, the volute 11 can draw in airflow from the outside environment through the outdoor ventilation area 103 when the centrifugal fan 2 is rotating; when the air inlet 111 is communicated with both the indoor air intake area 101 and the outdoor ventilation area 103, the volute 11 can draw in airflow from the indoor environment through the indoor air intake area 101 and from the outside environment through the outdoor ventilation area 103 when the centrifugal fan 2 is rotating.

[0049] like Figures 1-4 As shown, the indoor air outlet area 102 is adapted to communicate with the first air outlet section 12, so that the indoor air outlet area 102 and the first air outlet section 12 are in a communication state, and the inlet end 121 of the first air outlet section 12 is in an open state. When the centrifugal fan 2 rotates forward, the volute section 11 can discharge airflow from the indoor air outlet area 102 to the room through the first air outlet section 12.

[0050] like Figures 1-4 As shown, the outdoor ventilation area 103 is adapted to communicate with the second air outlet 13, so that the outdoor ventilation area 103 and the second air outlet 13 are in a communication state, and the inlet end 131 of the second air outlet 13 is in an open state. When the centrifugal fan 2 reverses, the volute 11 can discharge airflow from the outdoor ventilation area 103 to the outside through the second air outlet 13.

[0051] like Figure 3 and Figure 6 As shown, the fresh air component 100 includes a first switching device, which is used to switch the inlet end of one of the first air outlet 12 and the second air outlet 13 to be open and the inlet end of the other to be closed. Specifically, the first switching device has at least a first switching state and a second switching state. In the first switching state (e.g., Figure 3 As shown), the inlet end 121 of the first air outlet 12 is open and the inlet end 131 of the second air outlet 13 is closed. In this state, if the centrifugal fan 2 rotates forward, the airflow inside the volute 11 is sent out from the first air outlet 12; in the second switching state (e.g.) Figure 6 As shown), the inlet end 121 of the first air outlet 12 is closed and the inlet end 131 of the second air outlet 13 is open. In this state, if the centrifugal fan 2 reverses, the airflow in the volute 11 is sent out from the second air outlet 13.

[0052] likeFigure 4 、 Figure 5 and Figure 7 As shown in Figs. 10 and 11, the fresh air component 100 comprises a second switching device for switching one or at least one of the indoor air intake area 101 and the outdoor ventilation area 103 to be communicated with the air intake port 111. Specifically, the second switching device has at least a third switching state and a fourth switching state. In the third switching state (e.g. as shown in Fig. 10), the air intake port 111 is communicated with the indoor air intake area 101 but not communicated with the outdoor ventilation area 103, in which state, if the centrifugal fan 2 is rotated, the volute 11 sucks air flow from the indoor air intake area 101; in the fourth switching state (e.g. as shown in Fig. 11), the air intake port 111 is communicated with the outdoor ventilation area 103 but not communicated with the indoor air intake area 101, in which state, if the centrifugal fan 2 is rotated, the volute 11 sucks air flow from the outdoor ventilation area 103. Figure 5 and Figure 7 Figure 2 and Figure 4

[0053] Thus, the fresh air component 100 has at least a fresh air state and an exhaust air state by the first switching device and the second switching device.

[0054] In the fresh air state, as shown in Fig. 10, the second switching device presents the fourth switching state, the air intake port 111 is communicated with the outdoor ventilation area 103, at the same time, the first switching device presents the first switching state, the inlet end 121 of the first air outlet portion 12 is opened, the inlet end 131 of the second air outlet portion 13 is closed, at this time, the centrifugal fan 2 is rotated in the forward direction, the volute 11 sucks outdoor air flow through the outdoor ventilation area 103, then sends the air flow from the indoor air outlet area 102 to the indoor through the first air outlet portion 12, thereby realizing the fresh air introduction effect of introducing outdoor fresh air to the indoor. Figures 2-4

[0055] In the exhaust air state, as shown in Fig. 11, the second switching device presents the third switching state, the air intake port 111 is communicated with the indoor air intake area 101, at the same time, the first switching device presents the second switching state, the inlet end 121 of the first air outlet portion 12 is closed, the inlet end 131 of the second air outlet portion 13 is opened, at this time, the centrifugal fan 2 is rotated in the reverse direction, the volute 11 sucks indoor air flow through the indoor air intake area 101, then sends the air flow from the outdoor ventilation area 103 to the outdoor through the second air outlet portion 13, thereby realizing the exhaust air effect of introducing indoor dirty air to the outdoor. Figures 5-7

[0056] ​​​​In addition, in the exhaust state, since the second switching device is in the third switching state, the air inlet 111 is not communicated with the outdoor ventilation area 103, so as to avoid air suction from the outdoor ventilation area 103, thereby avoiding the mixed air problem of air suction and air exhaust from the outdoor ventilation area 103, and ensuring that the exhaust state can be carried out smoothly and reliably.

[0057] Of course, the present application is not limited to this, and the fresh air component 100 can also have other states through the first switching device and the second switching device. For example, the fresh air component 100 can also have a self-circulation state. In the self-circulation state, the second switching device is in the third switching state, the air inlet 111 is communicated with the indoor air inlet area 101, and at the same time, the first switching device is in the first switching state, the inlet end 121 of the first air outlet part 12 is opened, and the inlet end 131 of the second air outlet part 13 is closed. At this time, the centrifugal fan 2 is rotated in the forward direction, the volute part 11 sucks indoor air through the indoor air inlet area 101, and then sends the indoor air to the indoor air outlet area 102 through the first air outlet part 12, thereby realizing the indoor circulation effect of introducing indoor air to the indoor air supply.

[0058] Therefore, according to the fresh air component 100 of the embodiment of the present application, the fresh air state and the exhaust state can be switched. In the fresh air state, the centrifugal fan 2 is rotated in the forward direction, the fresh air component 100 introduces fresh air from the outdoor through the outdoor ventilation area 103, and sends the fresh air into the indoor through the indoor air outlet area 102. In the exhaust state, the centrifugal fan 2 is rotated in the reverse direction, the fresh air component 100 introduces air from the indoor through the indoor air inlet area 101, and exhausts the indoor air to the outdoor through the outdoor ventilation area 103, thereby meeting different needs of users.

[0059] Moreover, in the fresh air state, the fresh air component 100 introduces fresh air from the outdoor through the outdoor ventilation area 103, and in the exhaust state, the fresh air component 100 exhausts indoor air to the outdoor through the outdoor ventilation area 103, thereby indicating that the port of the fresh air component 100 for introducing outdoor fresh air in the fresh air state and the port of the fresh air component 100 for exhausting air to the outdoor in the exhaust state are both the outdoor ventilation area 103. Therefore, the air inlet pipeline in the fresh air state and the air outlet pipeline in the exhaust state can be shared, i.e., both are the fresh air pipeline 3 connected to the outdoor ventilation area 103. That is to say, the fresh air pipeline 3 can work bidirectionally and at different times, thereby avoiding the problem of multiple holes or expanded holes in the wall.

[0060] At present, when using air conditioner at home, in order to ensure the ability and effect of refrigeration and heating, the doors and windows need to be closed, which accumulates time. Due to the internal circulation of the air conditioner system, the indoor carbon dioxide gradually increases, the oxygen gradually decreases, and the indoor air quality seriously decreases. Therefore, it is very important to install a new air function in the air conditioner. At present, most of the air conditioners with built-in new air system are single suction, and only a few new air hanging machines need to be punched. According to the investigation, most customers are unwilling to punch another exhaust hole in the wall.

[0061] The new air component 100 according to the embodiment of the present application realizes the switching of the new air state and the exhaust state by the forward and reverse rotation of the centrifugal fan 2 and the switching of the air path of the two switching devices, so that the new air pipe 3 can work in bidirectional ventilation at different times, thereby avoiding the problem of punching a new hole in the wall due to the additional exhaust pipe, or expanding the hole in the wall to accommodate the exhaust pipe and the new air pipe 3. And under the premise of not affecting the performance of the new air state, the exhaust state is added, which can effectively remove the indoor peculiar smell, reduce the indoor carbon dioxide concentration, and improve the indoor air freshness.

[0062] In addition, since only one centrifugal fan 2 is used, the exhaust state is added by controlling the forward and reverse rotation of the centrifugal fan 2, thereby effectively controlling the cost and the overall structure volume, so that the new air component 100 according to the embodiment of the present application can have the advantages of low cost and small volume, and can utilize space more effectively, without the problem of wind storage, and the air volume is large. It can be understood that if two centrifugal wind wheels with relatively small axial size are used in the volute part 11 under the same volume instead of the reversible centrifugal fan 2, and the forward rotation of one of the centrifugal wind wheels is used to realize the new air function, and the reverse rotation of the other centrifugal wind wheel is used to realize the exhaust function, this way will obviously lead to the reduction of the new air volume and the exhaust volume.

[0063] Further, in some embodiments of the present application, the second switching device can also have a fifth switching state, in which the air inlet 111 is in communication with the indoor air inlet area 101 and also in communication with the outdoor ventilation area 103. In this state, if the centrifugal fan 2 rotates, the volute part 11 inhales air flow from the indoor through the indoor air inlet area 101, and also inhales air flow from the outdoor through the outdoor ventilation area 103.

[0064] Thus, the fresh air component 100 can further have a mixed air state. In the mixed air state, the second switching device assumes a fifth switching state, the air inlet 111 is in communication with the outdoor ventilation area 103 and the indoor air inlet area 101, and meanwhile, the first switching device assumes a first switching state, the inlet end 121 of the first air outlet portion 12 is open and the inlet end 131 of the second air outlet portion 13 is closed. At this time, the centrifugal fan 2 rotates in a forward direction, the volute portion 11 sucks indoor and outdoor airflows through the indoor air inlet area 101 and the outdoor ventilation area 103 respectively, and then sends the airflows to the indoor air outlet area 102 through the first air outlet portion 12, thereby realizing the mixed air effect of introducing indoor and outdoor airflows to the indoor air.

[0065] In some embodiments of the present application, as shown in Figure 3 and Figure 6 the first switching device can include a first switch door 41 and a second switch door 42. The first switch door 41 moves at the first air outlet portion 12 to shield or avoid the opening of the inlet end 121 of the first air outlet portion 12, and the second switch door 42 moves at the second air outlet portion 13 to shield or avoid the opening of the inlet end 131 of the second air outlet portion 13. In this way, when the first switch door 41 opens the inlet end 121 of the first air outlet portion 12 while the second switch door 42 closes the inlet end 131 of the second air outlet portion 13, the first switching device assumes a first switching state, i.e., the inlet end 121 of the first air outlet portion 12 is open and the inlet end 131 of the second air outlet portion 13 is closed. When the first switch door 41 closes the inlet end 121 of the first air outlet portion 12 while the second switch door 42 opens the inlet end 131 of the second air outlet portion 13, the first switching device assumes a second switching state, i.e., the inlet end 121 of the first air outlet portion 12 is closed and the inlet end 131 of the second air outlet portion 13 is open.

[0066] Thus, by providing the first switch door 41 to separately control the opening and closing of the inlet end 121 of the first air outlet portion 12 and the second switch door 42 to separately control the opening and closing of the inlet end 131 of the second air outlet portion 13, the state switching requirement of the first switching device can be met, and the inlet end 121 of the first air outlet portion 12 can be quickly opened or closed and the inlet end 131 of the second air outlet portion 13 can be quickly opened or closed, thereby improving the switching efficiency. Moreover, the first switch door 41 and the second switch door 42 can be respectively formed into the required shapes without interfering with each other, and the driving modes of the first switch door 41 and the second switch door 42 can be independent of each other, thereby facilitating the design of the driving structure.

[0067] In some embodiments of the present application, as shown in Figure 6 and Figure 7As shown, the first switch door 41 is formed as a first curved door matching the profile at the inlet end 121 of the first air outlet part 12. It can be understood that the volute part 11 is generally a spiral profile, and when the first curved door closes the inlet end 121 of the first air outlet part 12, the spiral profile at the inlet end 121 of the first air outlet part 12 can be completed, so that when the centrifugal fan 2 is reversed, the airflow in the volute part 11 can flow more smoothly to the second air outlet part 13. Of course, the present application is not limited to this, and in other embodiments, the first switch door 41 can also be processed into an arc-shaped or other form of curved door, etc.

[0068] Optionally, the first curved door slides in the volute part 11 in the circumferential direction, so that the first curved door slides in the circumferential direction of the volute part 11, so that the space occupied by the first curved door is small, the interference and adverse effects on the airflow are small, and the air tightness of the fresh air shell 1 can be better guaranteed. It should be noted that the "circumferential direction" in the circumferential sliding of the first curved door is understood in a broad sense, for example, sliding in the circumferential direction of the base circle of the volute part 11, or generally sliding in the circumferential direction of the base circle of the volute part 11, such as sliding in the extension direction of the profile of the volute part 11.

[0069] Of course, the present application is not limited to this, for example, in other embodiments of the present application, the first switch door 41 can also be provided as a sliding door that can enter and exit the volute part 11, for example, when it is needed to close the inlet end 121 of the first air outlet part 12, the first switch door 41 can slide into the volute part 11 and close the inlet end 121 of the first air outlet part 12, and when it is needed to open the inlet end 121 of the first air outlet part 12, the first switch door 41 can slide out of the volute part 11 and open the inlet end 121 of the first air outlet part 12.

[0070] In some embodiments of the present application, as shown in Figure 3 and Figure 4 The second switch door 42 is formed as a second curved door matching the profile at the inlet end 131 of the second air outlet part 13. It can be understood that the volute part 11 is generally a spiral profile, and when the second curved door closes the inlet end 131 of the second air outlet part 13, the spiral profile at the inlet end 131 of the second air outlet part 13 can be completed, so that when the centrifugal fan 2 is forward rotated, the airflow in the volute part 11 can flow more smoothly to the first air outlet part 12. Of course, the present application is not limited to this, and in other embodiments, the second switch door 42 can also be processed into an arc-shaped or other form of curved door, etc.

[0071] Optionally, the second curved door slides in the circumferential direction within the volute portion 11, so that the second curved door slides in the circumferential direction of the volute portion 11 within the volute portion 11, so that the space occupied by the second curved door is small, the interference and adverse effects on the air flow are small, and the air tightness of the fresh air casing 1 can be better ensured. It should be noted that the "circumferential direction" in the sliding of the second curved door is understood in a broad sense, for example, sliding in the circumferential direction of the base circle of the volute portion 11, or generally sliding in the circumferential direction of the base circle of the volute portion 11, such as sliding in the direction of the profile line extension of the volute portion 11.

[0072] Of course, the present application is not limited thereto, for example, in other embodiments of the present application, the second switch door 42 can also be provided as a sliding door that can enter and exit the volute portion 11, for example, when it is required to close the inlet end 131 of the second air outlet portion 13, the second switch door 42 can slide into the volute portion 11 and close the inlet end 131 of the second air outlet portion 13, and when it is required to open the inlet end 131 of the second air outlet portion 13, the second switch door 42 can slide out of the volute portion 11 and open the inlet end 131 of the second air outlet portion 13.

[0073] Of course, the present application is not limited thereto, in some other embodiments of the present application, the first switching device can also not include the first switch door 41 and the second switch door 42, for example, the first switching device can include a fifth switch door, the fifth switch door is movable between the inlet end 121 of the first air outlet portion 12 and the inlet end 131 of the second air outlet portion 13, when the fifth switch door blocks the inlet end of one of the first air outlet portion 12 and the second air outlet portion 13, the fifth switch door avoids opening the inlet end of the other of the first air outlet portion 12 and the second air outlet portion 13. More specifically, when the fifth switch door moves to the inlet end 121 of the first air outlet portion 12, the fifth switch door closes the inlet end 121 of the first air outlet portion 12, and at the same time, the fifth switch door avoids opening the inlet end 131 of the second air outlet portion 13, and when the fifth switch door moves to the inlet end 131 of the second air outlet portion 13, the fifth switch door closes the inlet end 131 of the second air outlet portion 13, and at the same time, the fifth switch door avoids opening the inlet end 121 of the first air outlet portion 12. Thus, the first switching device only needs to use one switch door to realize the switching of the first switching state and the second switching state, so that the structure can be simplified and the cost can be reduced. The movement mode of the fifth switch door is not limited, for example, it can slide in the circumferential direction of the base circle of the volute portion 11, and the like, which is not limited here.

[0074] In some embodiments of the present application, as Figures 1-2As shown, the fresh air shell 1 further comprises a first air inlet shell part 14, which is arranged on the side of the volute part 11 axially close to the air inlet 111 to communicate with the air inlet 111. It is worth mentioning that at least one of the two axial sides of the volute part 11 has an air inlet 111, when the volute part 11 has an air inlet 111 only on one side axially, the first air inlet shell part 14 is arranged on the side with the air inlet 111, and when the volute part 11 has air inlets 111 on both sides axially, at least one of the two axial sides of the volute part 11 is provided with the first air inlet shell part 14, and the air inlet 111 on the corresponding side of the first air inlet shell part 14, i.e. the air inlet 111 close to it, communicates. It can be understood that when the volute part 11 has air inlets 111 on both sides, the centrifugal fan 2 is a double-suction centrifugal fan, and when the volute part 11 has air inlets 111 only on one side, the centrifugal fan 2 is a single-suction centrifugal fan.

[0075] In combination Figure 4 and Figure 7 , the first air inlet shell part 14 and the second air outlet part 13 are provided with a communication port 104, and the second switching device comprises a third switch door 51 for switching the communication port 104. Since the air inlet 111 communicates with the first air inlet shell part 14, the outdoor ventilation area 103 communicates with the second air outlet part 13, so that when the third switch door 51 opens the communication port 104, the first air inlet shell part 14 can communicate with the second air outlet part 13 through the communication port 104, at this time, the volute part 11 can introduce outdoor fresh air through the air inlet 111, the first air inlet shell part 14, the communication port 104, the second air outlet part 13, the outdoor ventilation area 103, and the third switch door 51 switches the communication between the outdoor ventilation area 103 and the air inlet 111. When the third switch door 51 closes the communication port 104, the second air outlet part 13 cannot deliver air flow to the first air inlet shell part 14, and the third switch door 51 switches the communication between the outdoor ventilation area 103 and the air inlet 111. Therefore, the structure of the fresh air shell 1 is simple, ingenious and compact, and the communication between the outdoor ventilation area 103 and the air inlet 111 is simply and effectively switched by the third switch door 51.

[0076] Optionally, as Figure 2 and Figure 5As shown, the indoor air inlet area 101 can be formed on the first air inlet shell part 14, and the second switching device further comprises a fourth switch door 52 for switching the indoor air inlet area 101. Thus, when the fourth switch door 52 opens the indoor air inlet area 101, the first air inlet shell part 14 can introduce indoor air through the indoor air inlet area 101 and into the volute part 11 through the first air inlet shell part 14 and the air inlet 111, so as to realize the communication between the indoor air inlet area 101 and the air inlet 111; when the fourth switch door 52 closes the indoor air inlet area 101, the first air inlet shell part 14 cannot introduce indoor air through the indoor air inlet area 101, so as to realize the non-communication between the indoor air inlet area 101 and the air inlet 111. Thus, the structure of the fresh air shell 1 can be further simplified, and the communication between the indoor air inlet area 101 and the air inlet 111 can be simply and effectively switched by the fourth switch door 52.

[0077] In some embodiments of the present application, as shown in Figure 1 As shown, the axial side of the volute part 11 has the air inlet 111 and the first air inlet shell part 14. Thus, the volute part 11 can suck air flow from the first air inlet shell part 14 on the axial side, so as to ensure that the overall volume of the fresh air shell 1 is small and can occupy a small space of the air conditioner. Of course, the present application is not limited thereto, and in another embodiment of the present application, the axial sides of the volute part 11 both have the air inlet 111 and the first air inlet shell part 14 (not shown in the figure), so that the volute part 11 can suck air flow from the first air inlet shell parts 14 on the axial sides respectively, so as to improve the ventilation volume, reduce the air resistance, and when the second switching device on one side of the first air inlet shell part 14 fails, the second switching device on the other side can be used, so as to improve the reliability of the fresh air component 100.

[0078] In some embodiments of the present application, as shown in Figure 1 As shown, the axial side of the volute part 11 has the air inlet 111 and the first air inlet shell part 14. Thus, the volute part 11 can suck air flow from the first air inlet shell part 14 on the axial side, so as to ensure that the overall volume of the fresh air shell 1 is small and can occupy a small space of the air conditioner. Of course, the present application is not limited thereto, and in another embodiment of the present application, the axial sides of the volute part 11 both have the air inlet 111 and the first air inlet shell part 14 (not shown in the figure), so that the volute part 11 can suck air flow from the first air inlet shell parts 14 on the axial sides respectively, so as to improve the ventilation volume, reduce the air resistance, and when the second switching device on one side of the first air inlet shell part 14 fails, the second switching device on the other side can be used, so as to improve the reliability of the fresh air component 100.

[0079] Thus, the volute part 11 can introduce outdoor air by the first air inlet shell part 14 on one side, and can introduce indoor air by the second air inlet shell part on the other side, so that different air treatment assemblies 6 can be arranged in the first air inlet shell part 14 and the second air inlet shell part respectively to perform different treatments for indoor air inlet and outdoor air inlet respectively, or the air treatment assembly 6 can be arranged in the first air inlet shell part 14 only to perform treatment for outdoor air inlet only.

[0080] In some embodiments of the present application, as shown in Figure 1 The first air inlet shell part 14 is provided with an air treatment assembly 6, and the air treatment assembly 6 includes at least one of a purification component, a humidification component, and a temperature adjustment component. Thus, the air flow entering the first air inlet shell part 14 can be treated accordingly, for example, when the air treatment assembly 6 includes a purification component such as a filter screen or a high-efficiency filter, the purification component can be used to purify the air flow entering the first air inlet shell part 14, for another example, when the air treatment assembly 6 includes a humidification component, the humidification component can be used to humidify the air flow entering the first air inlet shell part 14, for another example, when the air treatment assembly 6 includes a temperature adjustment component, the temperature adjustment component can be used to adjust the temperature of the air flow entering the first air inlet shell part 14, and so on. Thus, it can be ensured that the fresh air introduced into the indoor meets the relevant requirements.

[0081] When the first air inlet shell part 14 has the indoor air inlet area 101, in the exhaust state, the first air inlet shell part 14 introduces indoor air through the indoor air inlet area 101, at this time, the air treatment assembly 6 can be made not to work or not to work as much as possible to reduce energy consumption and loss. For example, the above requirements can be met by setting the placement mode of the air treatment assembly 6 or electrically controlling, etc.

[0082] For example, in the example shown in Figure 1 The air treatment assembly 6 is arranged in the first air inlet shell part 14, and the air treatment assembly 6 divides the inner cavity of the first air inlet shell part 14 into a first cavity 141 and a second cavity 142 on both sides of the air treatment assembly 6, the communication port 104 communicates with the first cavity 141, and the indoor air inlet area 101 and the air inlet port 111 both communicate with the second cavity 142. Thus, in combination with Figure 1 and Figure 4 When the third switch door 51 opens the communication port 104 to introduce outdoor fresh air, the introduced outdoor fresh air will first enter the first cavity 141, then flow into the air inlet port 111 after passing through the air treatment assembly 6, and in combination with Figure 1 and Figure 7When the fourth switch door 52 opens the indoor air inlet area 101 to introduce indoor air, the introduced indoor air can directly enter the second chamber 142 and flow to the air inlet 111, avoiding the air treatment assembly 6. Thus, the air treatment assembly 6 can only treat the introduced outdoor fresh air, without treating the introduced indoor air, so that the energy consumption and loss of the air treatment assembly 6 can be reduced.

[0083] Further, as shown in Figure 1 and Figure 4 , when the indoor air inlet area 101 and the communication port 104 are located on the two sides of the air inlet 111 respectively, the air treatment assembly 6 can be arranged between the indoor air inlet area 101 and the communication port 104, and inclined towards the direction close to the air inlet 111 along the direction from the indoor air inlet area 101 to the communication port 104, so that the introduced outdoor fresh air can be effectively treated by the air treatment assembly 6, and the introduced indoor air can avoid the treatment of the air treatment assembly 6. Moreover, the space can be fully utilized, and the arrangement area and treatment effect of the air treatment assembly 6 can be improved.

[0084] For example, as shown in Figure 1 and Figure 4 , the indoor air inlet area 101 is higher than the air inlet 111, the communication port 104 is lower than the air inlet 111, the air treatment assembly 6 can be arranged between the indoor air inlet area 101 and the communication port 104 and opposite to the air inlet 111, and the air treatment assembly 6 is inclined from top to bottom towards the direction close to the air inlet 111. Thus, the structure is simple, the arrangement is convenient, the space can be fully utilized, and the arrangement area and treatment effect of the air treatment assembly 6 can be improved.

[0085] More specifically, as shown in Figure 1 and Figure 4 , the first air inlet shell part 14 is arranged on the left side of the volute part 11, the left side of the volute part 11 has the air inlet 111, the air treatment assembly 6 extends from top to bottom and from left to right, the upper end of the air treatment assembly 6 extends to the left side wall of the first air inlet shell part 14, the lower end of the air treatment assembly 6 extends to the right side wall of the first air inlet shell part 14, the indoor air inlet area 101 is directly above the air treatment assembly 6, the projection of the indoor air inlet area 101 on the horizontal plane completely falls within the projection of the air treatment assembly 6 on the horizontal plane, the air inlet 111 is on the right side of the air treatment assembly 6, and the projection of the air inlet 111 on the vertical plane completely falls within the projection of the air treatment assembly 6 on the vertical plane. The communication port 104 is lower than the air treatment assembly 6 and located on the right side wall of the first air inlet shell part 14, so that the first air inlet shell part 14 is in communication with the second air outlet part 13 below the volute part 11 on the right side of the first air inlet shell part 14.

[0086] In some embodiments of the present application, as shown in Figures 1-4As shown, the outdoor ventilation area 103 can be formed on the second air outlet part 13, thereby simplifying the structure of the fresh air casing 1 and shortening the air outlet air path. Of course, the present application is not limited thereto, for example, in other embodiments of the present application, the fresh air casing 1 can also include an exhaust casing part connected with the second air outlet part 13, and the outdoor ventilation area 103 is arranged on the exhaust casing part, which will not be repeated here.

[0087] In some embodiments of the present application, as shown in Figures 1-4 As shown, the indoor air outlet area 102 can be formed on the first air outlet part 12, thereby simplifying the structure of the fresh air casing 1 and shortening the air outlet air path. Of course, the present application is not limited thereto, for example, in other embodiments of the present application, the fresh air casing 1 can also include an exhaust casing part connected with the first air outlet part 12, and the indoor air outlet area 102 is arranged on the exhaust casing part, which will not be repeated here.

[0088] It is worth mentioning that the driving mode of the first switch door 41, the second switch door 42 and the fifth switch door is not limited, for example, it can be driven by a stepper motor, a gear and rack mechanism, etc., which will not be limited here. In addition, the movement mode of the third switch door 51 and the fourth switch door 52 is not limited, for example, it can be opened by rotating or sliding, etc., and it can be driven by a stepper motor to realize switch switching, which will not be repeated here.

[0089] In addition, in some embodiments, as shown in Figure 5 As shown, the sixth switch door 7 or the air guide structure, etc. for air outlet of the indoor air outlet area 102 can also be arranged at the indoor air outlet area 102, which will not be repeated here.

[0090] Next, the air conditioner according to the second embodiment of the present application is described.

[0091] The air conditioner according to the embodiment of the present application can include a temperature adjusting part and the fresh air part 100 for the air conditioner according to the first embodiment of the present application, wherein the temperature adjusting part can adjust the air temperature, and the fresh air part 100 can at least realize the exhaust state and the fresh air state.

[0092] For example, when the first switching device includes the first switch door 41 and the second switch door 42, and the second switching device includes the third switch door 51 and the fourth switch door 52, in the fresh air state, as shown in Figures 2-4 The third switch door 51 is opened, the fourth switch door 52 is closed, the first switch door 41 is opened, the second switch door 42 is closed, the outdoor fresh air enters the second air outlet part 13 from the fresh air pipe 3, then enters the first air inlet casing part 14 through the communication port 104, then passes through the air treatment assembly 6 for treatment, and then enters the volute part 11 through the air inlet port 111, is pressurized by the centrifugal fan 2 and expanded by the first air outlet part 12, and is then sent out from the indoor air outlet area 102. While in the exhaust state, as shown inFigures 5-7 As shown, the third switch door 51 is closed, the fourth switch door 52 is opened, the first switch door 41 is closed, and the second switch door 42 is opened. The indoor air enters the first air inlet shell part 14 from the indoor air inlet area 101, is then sucked into the volute part 11 through the air inlet 111, is pressurized by the centrifugal fan 2, is expanded by the second air outlet part 13, and is then discharged to the outdoor through the fresh air pipe 3.

[0093] According to the air conditioner of the embodiment of the present application, the fresh air pipe 3 can be bidirectionally ventilated and operated at different times by setting the fresh air part 100, so that a separate exhaust pipe is not needed, and thus the problem of additional holes in the wall or the problem of expanding the hole in the wall to accommodate the exhaust pipe and the fresh air pipe 3 at the same time is avoided. In addition, the exhaust state is added without affecting the performance of the fresh air state, the indoor dirty air is discharged to the outdoor, the indoor peculiar smell is effectively removed, the indoor carbon dioxide concentration is reduced, and the indoor air freshness is improved.

[0094] It should be noted that the specific type of the air conditioner according to the embodiment of the present application is not limited, for example, it can be a split-type air conditioner indoor unit, such as a floor-type air conditioner, a wall-mounted air conditioner, and the like. When the type of the air conditioner is determined, the person skilled in the art can select the setting position of the fresh air part 100 according to the specific type of the air conditioner, for example, when the air conditioner is a wall-mounted air conditioner and the length direction of the air conditioner extends horizontally, the fresh air part 100 can be arranged at one end of the length of the air conditioner, and the like. In addition, other configurations and operations of the air conditioner according to the embodiment of the present application are known to the person skilled in the art, and will not be described in detail here.

[0095] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0096] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. 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.

[0097] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected", "connection", "fixedly connected", "connected", "fixed", and the like should be construed broadly, for example, can be fixed connection, can be detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0098] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0099] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0100] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fresh air component for an air conditioner, characterized by, The application relates to a fresh air shell, a centrifugal fan and a switching device. The fresh air shell comprises a volute part, a first air outlet part and a second air outlet part, the volute part has an air inlet on the shaft side, the first air outlet part and the second air outlet part are arranged on the circumferential wall surface of the volute part at intervals in the circumferential direction, the fresh air shell has an indoor air inlet area, an indoor air outlet area and an outdoor ventilation area, the indoor air inlet area and the outdoor ventilation area are adapted to communicate with the air inlet, the indoor air outlet area is adapted to communicate with the first air outlet part, and the outdoor ventilation area is adapted to communicate with the second air outlet part. The centrifugal fan is arranged in the volute part, the centrifugal fan blows air from the first air outlet part when rotating in the positive direction, and blows air from the second air outlet part when rotating in the reverse direction. The first switching device comprises a first switching state and a second switching state, in the first switching state, the inlet end of the first air outlet part is opened, and the inlet end of the second air outlet part is closed, in the second switching state, the inlet end of the first air outlet part is closed, and the inlet end of the second air outlet part is opened. The second switching device comprises a third switching state and a fourth switching state, in the third switching state, the air inlet communicates with the indoor air inlet area, and in the fourth switching state, the air inlet communicates with the outdoor ventilation area.

2. The fresh air component for an air conditioner according to claim 1, characterized by, The first switching device comprises a first switch door and a second switch door, the first switch door moves at the first air outlet part to shield and close or avoid and open the inlet end of the first air outlet part, and the second switch door moves at the second air outlet part to shield and close or avoid and open the inlet end of the second air outlet part.

3. The fresh air component for an air conditioner according to claim 2, characterized by, The first switch door is formed into a first curved door matched with the profile at the inlet end of the first air outlet part, and the second switch door is formed into a second curved door matched with the profile at the inlet end of the second air outlet part.

4. The fresh air component for an air conditioner according to claim 3, characterized by, The first curved door slides in the circumferential direction in the volute part, and the second curved door slides in the circumferential direction in the volute part.

5. The fresh air component for an air conditioner according to claim 1, characterized by, The fresh air shell further comprises a first air inlet shell part arranged on the side close to the air inlet on the shaft of the volute part to communicate with the air inlet, a communication port is arranged between the first air inlet shell part and the second air outlet part, and the second switching device comprises a third switch door switching the communication port.

6. The fresh air component for an air conditioner according to claim 5, characterized by, The indoor air inlet area is formed on the first air inlet shell part, and the second switching device further comprises a fourth switch door switching the indoor air inlet area.

7. The fresh air component for an air conditioner according to claim 6, characterized by, One side of the volute part in the axial direction has the air inlet and the first air inlet shell part, or both sides of the volute part in the axial direction have the air inlet and the first air inlet shell part.

8. The fresh air component for an air conditioner according to claim 5, characterized by, Both sides of the volute part in the axial direction have the air inlet, one side of the volute part in the axial direction has the first air inlet shell part, the other side of the volute part in the axial direction has a second air inlet shell part, the indoor air inlet area is formed on the second air inlet shell part, and the second switching device further comprises a fourth switch door switching the indoor air inlet area.

9. The fresh air component for an air conditioner according to claim 5, characterized by, The first air inlet shell part is provided with an air treatment assembly, and the air treatment assembly comprises at least one of a purification component, a humidifying component and a temperature adjusting component.

10. The fresh air component for an air conditioner according to claim 9, characterized by, The indoor air inlet area is formed on the first air inlet shell part, the second switching device further comprises a fourth switch door for switching the indoor air inlet area switch, the air treatment assembly divides the inner cavity of the first air inlet shell part into a first chamber and a second chamber located on both sides of the air treatment assembly, the communication port communicates with the first chamber, and the indoor air inlet area and the air inlet port both communicate with the second chamber.

11. The fresh air component for an air conditioner according to any one of claims 1-10, characterized in that, The second switching device further comprises a fifth switching state, in which the air inlet port communicates with the indoor air inlet area and the outdoor ventilation area.

12. An air conditioner characterized by comprising: Fresh air component for an air conditioner according to any one of claims 1-11, comprising a temperature regulating component.

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