Volute assembly and ventilation component and air conditioner having the same

Abstract

The present invention discloses a volute assembly and a ventilation component and an air conditioner having the same. The volute assembly comprises: a switchable volute, the switchable volute comprises a volute body, a first volute tongue and a second volute tongue, the circumferential wall surface of the volute body is provided with a first vent and a second vent set apart, the axial side end surface of the volute body is provided with a third vent, along the circumference of the volute body, the first volute tongue is located at the downstream side edge of the first vent, and the second volute tongue is located at the downstream side edge of the second vent; a switching device, the switching device is used to switch one of the third vent and the second vent to open, and has a first state and a second state. The switching device can switch the working state of the switchable volute, so as to configure the switchable volute into a centrifugal volute or a crossflow volute according to the use requirements, by switching the volute assembly to the first state to introduce fresh air, and by switching the volute assembly to the second state to discharge the turbid air entering the volute body.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, in particular to a volute assembly and a ventilation component and an air conditioner having the volute assembly. Background Art

[0002] In the related art, the air conditioner can introduce fresh air from the outside through the fresh air module, and at the same time, it can also exhaust the turbid air in the room to the outside. When the fresh air fan is used to introduce fresh air, the fresh air is sent upward from the air outlet of the centrifugal fan. When the fresh air fan is used to exhaust the turbid air in the room, the turbid air in the room will also be sent upward. It is necessary to set a longer flow channel for the turbid air to flow to the fresh air inlet. In other words, the pipeline layout when the fresh air fan is used to introduce fresh air and exhaust the turbid air in the room is unreasonable, resulting in large air flow losses, affecting the exhaust efficiency of the air conditioner. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is to provide a volute assembly, which can meet the air supply and exhaust requirements by switching states.

[0004] The present invention also provides a ventilation component having the volute assembly.

[0005] The invention also provides an air conditioner.

[0006] According to a first aspect of the present invention, a volute assembly comprises: a switchable volute, the switchable volute comprises a volute body, a first volute tongue and a second volute tongue, the circumferential surface of the volute body is provided with a first vent and a second vent arranged at intervals, the axial end surface of the volute body is provided with a third vent, along the circumferential direction of the volute body, the first volute tongue is located at the downstream side edge of the first vent, and the second volute tongue is located at the downstream side edge of the second vent; a switching device, the switching device is used to switch one of the third vent and the second vent to open, and has a first state and a second state, wherein in the first state, the third vent is opened, the second vent is closed, the volute body and the first volute tongue form an outlet centrifugal air duct, the third vent is the inlet of the centrifugal air duct, and the first vent is the outlet of the centrifugal air duct, in the second state, the second vent is opened, the third vent is closed, the volute body and the second volute tongue form an outlet crossflow air duct, the first vent is the inlet of the crossflow air duct, and the second vent is the outlet of the crossflow air duct.

[0007] According to the volute assembly of an embodiment of the present invention, the switching device can switch the working state of the switchable volute to construct the switchable volute into a centrifugal volute or a cross-flow volute according to usage requirements, so that fresh air can be introduced by switching the volute assembly to a first state, and turbid air entering the volute body through the first vent can be discharged by switching the volute assembly to a second state, thereby meeting the two functions of introducing new air and discharging air.

[0008] According to some embodiments of the present invention, the second volute tongue is fixed in the volute body.

[0009] According to some embodiments of the present invention, the second volute tongue is movable relative to the volute body, and in the first state, the second volute tongue is located outside the volute body, and in the second state, the second volute tongue is located inside the volute body.

[0010] According to some embodiments of the present invention, the switchable volute further includes: a first diffusion section, one end of the first diffusion section is connected to the first ventilation port of the volute body, the first diffusion section defines a first air duct, in the first state, the first air duct is connected to the centrifugal air duct, in the second state, the first air duct is connected to the cross-flow air duct, and the other end of the first diffusion section defines a first exhaust port of the switchable volute.

[0011] According to some embodiments of the present invention, the switchable volute further includes: a second diffusion section, one end of the second diffusion section is connected to the second ventilation port of the volute body, the second diffusion section defines a second air duct, in the first state, the second air duct is separated from the centrifugal air duct, in the second state, the second channel is connected to the cross-flow air duct, and the other end of the second diffusion section defines a second exhaust port of the switchable volute.

[0012] According to some embodiments of the present invention, the volute assembly includes a plurality of volutes sequentially arranged along the axial direction of the volute assembly, and at least one of the volutes is the switchable volute.

[0013] According to some embodiments of the present invention, the multiple volutes include a first volute and a second volute, the first volute is the switching volute, the second volute is a centrifugal volute and includes a third volute tongue, the second volute is arranged on the side of the first volute in the axial direction away from the third vent, the axial side of the first volute facing the second volute is provided with a fourth vent, the axial side of the second volute facing the first volute is provided with an axial inlet suitable for connecting with the fourth vent, the circumferential outlet is provided on the circumferential wall surface of the second volute, and along the circumference of the volute assembly, the third volute tongue is located at the downstream edge of the circumferential outlet, and the positions of the circumferential outlet and the first and second vents are different.

[0014] According to some embodiments of the present invention, the switching device is further used to control: the connection and disconnection between the first vent and the outside of the first volute, and the connection and disconnection between the circumferential outlet and the outside of the second volute.

[0015] The ventilation component according to the second invention embodiment of the present invention comprises: a wind wheel and the above-mentioned volute assembly, wherein at least a part of the wind wheel is arranged in the volute body.

[0016] According to some embodiments of the present invention, when the volute assembly includes the first volute and the second volute, the first volute and the second volute share one wind wheel.

[0017] According to some embodiments of the present invention, the ventilation component also includes: a shell assembly, which is arranged outside the volute assembly and defines a connecting passage, and the switching device is also used to control the connecting passage to be connected with one of the third ventilation port and the second ventilation port. In the first state, the connecting passage is connected with the third ventilation port and is separated from the second ventilation port. In the second state, the connecting passage is connected with the second ventilation port and is separated from the third ventilation port.

[0018] According to some embodiments of the present invention, the ventilation component further includes: an air treatment component, which is disposed in the communication passage and includes at least one of a heating element and a purification element.

[0019] The air conditioner according to the third aspect of the present invention comprises: a temperature regulating component, which may include a fan assembly and a heat exchange assembly; a fresh air component, which is a ventilation component according to any one of claims 9 to 12, wherein the first vent is suitable for communicating with the indoor room, and the third vent and the second vent are both suitable for communicating with the outdoor room.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a ventilation component according to an embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of a ventilation component according to another angle of an embodiment of the present invention;

[0023] Figure 3 is a cross-sectional view of a volute assembly in a first state according to an embodiment of the present invention;

[0024] Figure 4 yes Figure 3 Sectional view at midline AA;

[0025] Figure 5 yes Figure 3 Sectional view at midline BB;

[0026] Figure 6 is a cross-sectional view of a volute assembly in a second state according to an embodiment of the present invention;

[0027] Figure 7 is a cross-sectional view at another angle of the volute assembly in the second state according to an embodiment of the present invention;

[0028] Figure 8 is a structural schematic diagram of a volute assembly according to an embodiment of the present invention;

[0029] Fig. 9 is a structural schematic diagram of a volute assembly from another angle according to an embodiment of the present invention;

[0030] Fig.10 is a schematic structural diagram of a volute assembly in a second state according to an embodiment of the present invention;

[0031] Fig.11 is a cross-sectional view of a volute assembly in a first state according to yet another embodiment of the present invention;

[0032] Fig.12 yes Fig.11 Sectional view at midline CC;

[0033] Fig.13 is a cross-sectional view of a volute assembly in a second state according to yet another embodiment of the present invention;

[0034] Fig.14 yes Fig.13 Sectional view at midline DD.

[0035] Reference numerals:

[0036] Ventilation components 1000,

[0037] The volute assembly 100, the housing assembly 200, the communication passage 201, the air treatment assembly 300, the wind wheel 400,

[0038] The switchable volute 10, the volute body 11, the first vent 111, the second vent 112, the third vent 113, the first volute tongue 121, the second volute tongue 122, the first diffuser 13, the second diffuser 14,

[0039] The first volute 21, the fourth vent 211, the second volute 22, the third volute tongue 221,

[0040] A first shielding member 31 , a second shielding member 32 , a third shielding member 33 , and a fourth shielding member 34 . DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0042] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0043] The volute assembly 100 according to the embodiment of the present invention includes: a switchable volute 10 and a switching device.

[0044] Combination Figure 3 and Figure 4 The switchable volute 10 includes a volute body 11, a first volute tongue 121, and a second volute tongue 122. The circumferential surface of the volute body 11 is provided with a first vent 111 and a second vent 112 which are spaced apart from each other, and an axial end surface of the volute body 11 is provided with a third vent 113. Along the circumference of the volute body 11, the first volute tongue 121 is located at the downstream edge of the first vent 111, and the second volute tongue 122 is located at the downstream edge of the second vent 112.

[0045] like Figure 3As shown, the first vent 111 and the second vent 112 are arranged at intervals in the circumferential direction of the volute body 11, the first volute tongue 121 is arranged at the downstream side edge of the first vent 111, and the second volute tongue 122 is arranged at the downstream side edge of the second vent 112, so that the first volute tongue 121 and the second volute tongue 122 are also arranged at intervals in the circumferential direction of the volute body 11.

[0046] It should be noted that the first volute tongue 121 and the second volute tongue 122 have good guiding and limiting effects on the airflow of the volute body 11. The first volute tongue 121 is used to guide the airflow in the volute body 11 so that the airflow in the volute body 11 flows to the first vent 111; the second volute tongue 122 is used to guide the airflow in the volute body 11 so that the airflow in the volute body 11 flows to the second vent 112.

[0047] The switching device (not shown in the figure) is used to switch one of the third vent 113 and the second vent 112 to open, and has a first state and a second state. In the first state, the third vent 113 is opened, the second vent 112 is closed, the volute body 11 and the first volute tongue 121 form a centrifugal air duct, the third vent 113 is the entrance of the centrifugal air duct, and the first vent 111 is the outlet of the centrifugal air duct; in the second state, the second vent 112 is opened, the third vent 113 is closed, the volute body 11 and the second volute tongue 122 form a cross-flow air duct, the first vent 111 is the entrance of the cross-flow air duct, and the second vent 112 is the outlet of the cross-flow air duct.

[0048] Specifically, combined Figure 3 and Figure 4 , the switching device controls the third vent 113 to open and the second vent 112 to close. At this time, it is the first state. The volute body 11 cooperates with the first volute tongue 121 to form a centrifugal volute. A centrifugal air duct is provided in the centrifugal volute, and the airflow in the volute body 11 can flow along the centrifugal air duct. When the switchable volute 10 is in the first state, the third vent 113 is constructed as the inlet of the centrifugal air duct, and the first vent 111 is the outlet of the centrifugal air duct. The airflow is discharged from the centrifugal volute after passing through the third vent 113 and the first vent 111 in sequence. At this time, the switchable volute 10 can take in air axially and discharge air in the circumferential direction. That is to say, in the first state, the volute body 11 and the first volute tongue 121 in the switchable volute 10 cooperate to form a centrifugal volute, so that air can be taken in through the third vent 113 in the axial direction and the first vent 111 in the circumferential direction to meet the air supply demand of the volute assembly 100.

[0049] Combination Figure 6 and Figure 7, the switching device controls the second vent 112 to open and the third vent 113 to close. At this time, it is the second state. The volute body 11 cooperates with the second volute tongue 122 to form a cross-flow volute. The cross-flow volute is provided with a cross-flow air duct. The airflow in the volute body 11 can flow along the cross-flow air duct. When the switchable volute 10 is in the second state, the first vent 111 is constructed as the inlet of the cross-flow air duct, and the second vent 112 is the outlet of the cross-flow air duct. After the airflow flows through the first vent 111 and the second vent 112 in sequence, it is discharged from the cross-flow volute. At this time, the switchable volute 10 can take in air axially and discharge air in the radial direction. That is to say, in the second state, the volute body 11 and the second volute tongue 122 in the switchable volute 10 cooperate to form a cross-flow volute, so that air can be taken in through the first vent 111 in the circumferential direction and the second vent 112 in the radial direction can be discharged to meet the exhaust requirements of the volute assembly 100.

[0050] It should be noted that when the volute assembly 100 is in the first state, the switchable volute 10 is constructed as a centrifugal volute, air is taken in through the third vent 113, and air is delivered through the first vent 111; when the volute assembly 100 is in the second state, the switchable volute 10 is constructed as a cross-flow volute, air is taken in through the first vent 111, and air is discharged through the second vent 112. Thus, the volute assembly 100 can guide air on two different paths. When the volute assembly 100 is applied to an air conditioner, fresh air can be introduced by switching the volute assembly 100 to the first state, and turbid air in the room can be discharged by switching the volute assembly 100 to the second state. The adjustment method of the volute assembly 100 is simple, and it can meet the two functions of introducing air and discharging air.

[0051] Combination Figure 3 , Figure 4 , Figure 6 as well as Figure 7 The switching device is used to switch one of the second vent 112 and the third vent 113 to open and control the other to close, so as to avoid the situation where the centrifugal volute and the crossflow volute cannot be formed due to the opening of the second vent 112 and the third vent 113. It can be understood that when the second vent 112 and the third vent 113 are closed at the same time, the air in the switchable volute 10 cannot flow in the volute body 11, and when the second vent 112 and the third vent 113 are opened at the same time, two air ducts will be formed in the volute body 11, and interference will occur between the two air ducts, thereby affecting the air supply or exhaust of the switchable volute 10.

[0052] The volute assembly 100 can cooperate with the wind wheel in practical use, and a flowing airflow can be formed in the volute body 11 by driving the wind wheel to rotate. Figure 4 , Figure 4The arrows in FIG. 1 show the direction of air flow in the volute body 11. Figure 3 and Figure 4 When the wind wheel is working, air enters from the third vent 113 in the axial direction of the wind wheel and flows out from the radial direction of the wind wheel. The outer peripheral wall of the volute body 11 has a limiting effect on the airflow, and the airflow flows clockwise under the cooperation of the outer peripheral wall and the wind wheel. The first volute tongue 121 can play a good guiding role on the airflow in the volute body 11, so that the airflow flowing clockwise in the volute body 11 can flow out from the first vent 111.

[0053] According to the volute assembly 100 of the embodiment of the present invention, the switching device can switch the working state of the switchable volute 10 to construct the switchable volute 10 into a centrifugal volute or a cross-flow volute according to the use requirements, so that fresh air can be introduced by switching the volute assembly 100 to the first state, and turbid air entering the volute body 11 through the first vent 111 can be discharged by switching the volute assembly 100 to the second state, thereby satisfying the two functions of introducing new air and discharging air.

[0054] In some embodiments of the present invention, the second volute tongue 122 is fixedly disposed in the volute body 11, and the second volute tongue 122 can be fixedly assembled or integrally formed with the volute body 11. The second volute tongue 122 can be an independent component, and can be fixed at the air duct of the volute body 11 by cooperating with the volute body 11. The second volute tongue 122 can also be integrally formed with the volute body 11, so that the second volute tongue 122 does not need to be assembled, which can reduce the assembly difficulty of the volute assembly 100 and improve the assembly efficiency.

[0055] In other embodiments of the present invention, the second volute tongue 122 is movable relative to the volute body 11. In the first state, the second volute tongue 122 is located outside the volute body 11, and in the second state, the second volute tongue 122 is located inside the volute body 11. The second volute tongue 122 is movably disposed and connected to the volute body 11, and the position of the second volute tongue 122 relative to the volute body 11 can be adjusted accordingly according to the working state of the switchable volute 10 to ensure the effect of switching the switchable volute 10 to the centrifugal volute and the crossflow volute.

[0056] It should be noted that, refer to Figure 4When the switchable volute 10 is in the first state, the switchable volute 10 is equivalent to a centrifugal volute. If the second volute tongue 122 is still located in the volute body 11, the second volute tongue 122 will have a certain impact on the centrifugal air duct of the centrifugal volute, and will produce a certain resistance to the airflow flowing in the centrifugal air duct, increasing the difficulty of the airflow flowing to the first vent 111. If the position of the second volute tongue 122 is adjusted to the outside of the volute body 11 when the switchable volute 10 is in the first state, that is, the second volute tongue 122 is located outside the centrifugal air duct defined by the volute body 11, the second volute tongue 122 does not affect the flow direction of the airflow in the centrifugal air duct, thereby reducing the resistance in the centrifugal air duct and ensuring the air volume of the first vent 111.

[0057] Optionally, one end of the second volute tongue 122 is pivotally connected to the volute body 11, that is, the second volute 22 can rotate around the end connected to the volute body 11. When the switchable volute 10 is in the first state, the second volute tongue 122 is rotated to adjust the position of the second volute tongue 122 relative to the volute body 11, and the second volute tongue 122 is adjusted to the outside of the volute body 11, so as to avoid the second volute tongue 122 from generating resistance to the airflow in the centrifugal air duct, thereby ensuring the air outlet effect of the switchable volute 10 in the first state. When the switchable volute 10 is in the second state, the second volute tongue 122 is rotated to adjust the position of the second volute tongue 122 relative to the volute body 11, and the second volute tongue 122 is adjusted to the inside of the volute body 11, so that the airflow entering the volute body 11 through the first vent 111 can flow out from the second vent 112, thereby ensuring the exhaust effect of the switchable volute 10 in the second state.

[0058] Of course, the connection method between the second volute tongue 122 and the volute body 11 is not limited to this, and can also be other arrangements, which are not specifically limited here. In other words, no matter how the second volute tongue 122 cooperates with the volute body 11, it only needs to be able to move relative to the volute body 11 and be selectively arranged inside or outside the volute body 11.

[0059] like Figure 4 As shown, in some embodiments of the present invention, the switchable volute 10 further includes: a first diffuser 13, one end of the first diffuser 13 is connected to the first vent 111 of the volute body 11, and the first diffuser 13 defines a first air duct. In the first state, the first air duct is connected to the centrifugal air duct, and in the second state, the first air duct is connected to the crossflow air duct. The other end of the first diffuser 13 defines a first exhaust port of the switchable volute 10.

[0060] When the switchable volute 10 is in the first state, the airflow in the centrifugal air duct can flow to the first air duct through the first vent 111 to enter the first diffusion section 13, and be discharged from the first exhaust port after the airflow passes through the first diffusion section 13; when the switchable volute 10 is in the second state, the airflow in the volute body 11 can enter the first diffusion section 13 and the first air duct through the first exhaust port, and enter the cross-flow air duct after the airflow passes through the first diffusion section 13, and the airflow entering the cross-flow air duct can be discharged from the second vent 112 of the volute body 11.

[0061] It can be understood that the first diffuser section 13 has a guiding and diffusing effect on the airflow flowing into the first air duct, and the airflow can be discharged from the first exhaust port after being diffused by the first diffuser section 13, thereby improving the air supply effect of the volute assembly 100. When the switchable volute 10 is in the second state, the first diffuser section 13 is used for air intake, and at this time, the first diffuser section 13 has a certain convergence effect on the airflow, and the air entering the first diffuser section 13 through the first exhaust port can be converged at the first diffuser section 13, thereby improving the air intake effect at the first diffuser section 13.

[0062] Specifically, refer to Figure 4 , Figure 4 The arrow in the figure shows the direction of airflow in the volute body 11. When the switchable volute 10 is in the first state, the airflow in the volute body 11 rotates clockwise and flows from the first vent 111 to the first diffuser 13. The first volute tongue 121 has a guiding and limiting effect on the flow direction of the airflow, thereby ensuring the air intake at the first diffuser 13.

[0063] Reference Figure 6 , Figure 6 The arrow in the figure shows the flow direction of the airflow in the volute body 11. When the switchable volute 10 is in the second state, the switchable volute 10 is equivalent to a through-flow volute. The airflow in the volute body 11 flows from the first diffusion section 13 to the position where the wind wheel 400 is set in the volute assembly 100. Under the joint action of the wind wheel 400 and the second volute tongue 122, the airflow can flow out from the second vent 112. The second volute tongue 122 has a guiding and limiting effect on the flow direction of the airflow, so that the airflow radially flowing out from the wind wheel 400 can flow out from the second vent 112. At this time, the working mode of the wind wheel 400 is radial air intake (air intake from the first diffusion section 13 of the volute assembly 100) and radial air outlet (air outlet from the second vent 112 of the volute assembly 100).

[0064] In some embodiments of the present invention, the switchable volute 10 also includes: a second diffusion section 14, one end of the second diffusion section 14 is connected to the second ventilation port 112 of the volute body 11, the second diffusion section 14 defines a second air duct, in the first state, the second air duct is separated from the centrifugal air duct, in the second state, the second channel is connected to the cross-flow air duct, and the other end of the second diffusion section 14 defines a second exhaust port of the switchable volute 10.

[0065] The second diffuser section 14 defines a second air duct, which can be selectively connected to the air duct formed by the volute body 11. For example, in the first state, the second air duct will not be connected to the centrifugal air duct to avoid interference with the airflow in the centrifugal air duct and affect the flow direction of the airflow in the centrifugal air duct; in the second state, the second air duct is connected to the crossflow air duct, and the airflow flowing out in the radial direction of the impeller 400 can flow out through the second vent 112.

[0066] Specifically, if Figure 4 As shown, when the switchable volute 10 is in the first state, the second diffuser section 14 is not connected with the centrifugal air duct, and the airflow cannot flow into the second diffuser section 14; when the switchable volute 10 is in the second state, the second air duct is connected with the crossflow air duct, and the airflow in the crossflow air duct enters the volute body 11 through the first diffuser section 13. The airflow entering the crossflow air duct can flow from the second ventilation port 112 of the volute body 11 to the second diffuser section 14, and be discharged from the second exhaust port of the second diffuser section 14.

[0067] It is understandable that the second diffuser section 14 has a guiding and diffusing effect on the airflow flowing into the second air duct. The airflow can be discharged from the second exhaust port after being diffused by the second diffuser section 14, thereby improving the exhaust effect of the volute assembly 100.

[0068] Specifically, refer to Figure 4 , Figure 4 The arrow in the figure shows the direction of air flow in the volute body 11. When the switchable volute 10 is in the first state, the second diffuser section 14 is separated from the centrifugal air duct, and the air flow in the volute body 11 rotates clockwise. At this time, the air flow in the volute body 11 cannot flow into the second diffuser section 14 through the second vent 112, and the air flow in the volute body 11 can flow from the first vent 111 to the first diffuser section 13.

[0069] Reference Figure 6 , Figure 6The arrow in the figure shows the flow direction of the airflow in the volute body 11. When the switchable volute 10 is in the second state, the second diffuser section 14 is connected to the crossflow air duct. The switchable volute 10 is equivalent to a crossflow volute. The airflow in the volute body 11 flows from the first diffuser section 13 to the position where the wind wheel 400 is set in the volute assembly 100. Under the joint action of the wind wheel 400 and the second volute tongue 122, the airflow can flow out from the second vent 112 and flow to the second diffuser section 14. The airflow flowing through the second diffuser section 14 can be discharged through the second exhaust port. The second volute tongue 122 has a guiding and limiting effect on the flow direction of the airflow, so that the airflow radially flowing out from the wind wheel 400 can flow out from the second vent 112.

[0070] like Figure 8 and Fig. 9 As shown, in some embodiments of the present invention, the volute assembly 100 includes a plurality of volutes arranged in sequence along the axial direction of the volute assembly 100 , and at least one volute is a switchable volute 10 .

[0071] It is understandable that when the volute assembly 100 includes multiple volutes arranged in the axial direction thereof, the volute assembly 100 can discharge air simultaneously through the multiple volutes. For example, the volute assembly 100 is provided with two volutes, one of which is the above-mentioned switchable volute 10, and the other volute is a volute arranged in sequence with the switchable volute 10 in the axial direction.

[0072] Combination Figure 3 , Figure 4 and Figure 5 When the volute assembly 100 is in the first state, the switchable volute 10 is in the first state, that is, the third vent 113 is open and the second vent 112 is closed. At this time, the switchable volute 10 is equivalent to a centrifugal volute, and the airflow in the volute body 11 flows out through the first vent 111. Figure 5 The volute is a centrifugal volute, and the airflow in the volute can flow out through the vents of the volute. At this time, the volute assembly 100 can discharge air through the two vents at the same time, thereby improving the air supply capacity of the volute assembly 100.

[0073] Combination Figure 6 and Figure 7 When the volute assembly 100 is in the second state, the switchable volute 10 is in the second state, that is, the third vent 113 is closed and the second vent 112 is opened. At this time, the switchable volute 10 is equivalent to a through-flow volute, and the airflow in the volute body 11 flows in through the first vent 111 and flows out from the second vent 112. Figure 6 At this time, the vent of the volute is closed, that is, the volute assembly 100 cannot supply air to the volute body 11 through the volute. When the volute assembly 100 is in the second state, only the switching volute 10 works to achieve reverse exhaust.

[0074] It should be noted that if the volute assembly 100 is in the second state, the vents in the volute and the switchable volute 10 are both connected to the outside world, which will affect the flow of air into the volute body 11, increase the complexity of the airflow in the volute body 11, and make it difficult to effectively control the flow direction of the airflow. When the volute assembly 100 includes a plurality of switchable volutes 10, each switchable volute 10 can work relatively independently, so that interference between the plurality of volutes can be avoided, thereby improving the working reliability of the volute assembly 100.

[0075] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, multiple volutes include a first volute 21 and a second volute 22, the first volute 21 is a switchable volute 10, the second volute 22 is a centrifugal volute and includes a third volute tongue 221, the second volute 22 is arranged on the side of the first volute 21 axially away from the third ventilation port 113, the axial side of the first volute 21 facing the second volute 22 is provided with a fourth ventilation port 211, the axial side of the second volute 22 facing the first volute 21 is provided with an axial inlet suitable for communicating with the fourth ventilation port 211, the circumferential wall surface of the second volute 22 is provided with a circumferential outlet, along the circumference of the volute assembly 100, the third volute tongue 221 is located at the downstream edge of the circumferential outlet, and the positions of the circumferential outlet and the first ventilation port 111 and the second ventilation port 112 are different.

[0076] Combination Figure 3 , Figure 4 and Figure 5 In the axial direction, the second volute 22 is arranged above the first volute 21, and the airflow can enter from the third ventilation port 113 of the volute assembly 100, and flow to the first volute 21 and the second volute 22 under the action of the wind wheel 400. In the axial direction, since the first volute 21 is provided with a fourth ventilation port 211 on the side facing the second volute 22, and the second volute 22 is provided with an axial inlet connected to the fourth ventilation port 211, the airflow entering the first volute 21 through the third ventilation port 113 can flow to the axial inlet through the fourth ventilation port and enter the second volute 22, and then flow out through the circumferential outlet of the second volute 22.

[0077] The second volute 22 includes a third volute tongue 221, which has a good guiding and limiting effect on the airflow in the second volute 22. The third volute tongue 221 is used to guide the airflow in the second volute 22 so that the airflow in the second volute 22 flows to the circumferential outlet. It can be understood that since the third volute tongue 221 is arranged at the downstream side edge of the circumferential outlet, the third volute tongue 221 can increase the difficulty of the airflow flowing to the downstream of the third volute tongue 221, so that the airflow in the second volute 22 can flow to the circumferential outlet.

[0078] Reference Figure 5 The airflow in the second volute 22 can flow in the second volute 22 along the clockwise direction. Under the cooperation of the outer peripheral wall of the second volute 22 and the third volute tongue 221 , the airflow flows to the circumferential outlet and flows out from the second volute 22 .

[0079] Combination Figure 4 and Figure 5 , the circumferential outlet is different from the first vent 111 and the second vent 112 in the volute assembly 100, and is arranged in sequence in the circumferential direction of the volute assembly 100. It can be understood that the first vent 111 and the second vent 112 are used for air supply and exhaust of the switchable volute 10, and the circumferential outlet is used for air supply of the second volute 22. When the volute assembly 100 is supplying air, air can be supplied through the first vent 111 and the circumferential outlet, so that the volute assembly 100 can supply air in two different directions at the same time; when the volute assembly 100 is exhausting air, the circumferential outlet of the second volute 22 is closed, and the second volute 22 does not work at this time, and air is taken in through the first vent 111 and exhausted through the second vent 112 to realize the exhaust function of the volute assembly 100. The circumferential outlet, the first vent 111 and the second vent 112 are spaced apart in the circumferential direction of the volute assembly 100 to satisfy the air supply function of the volute assembly 100 in multiple directions, while reducing the influence of the second volute 22 on the exhaust effect when the volute assembly 100 is exhausting air.

[0080] In some embodiments of the present invention, the switching device is also used to control: the connection and disconnection between the first vent 111 and the outside of the first volute 21, and the connection and disconnection between the circumferential outlet and the outside of the second volute 22, so as to meet the air outlet requirements of different working modes of the volute assembly 100.

[0081] When the first vent 111 is connected to the outside of the first volute 21, the first volute 21 can supply air to the outside of the first volute 21 through the first vent 111, and can also take air into the first volute 21 through the first vent 111. At this time, the first volute 21 can have two working states, namely, the working state in which the first volute 21 supplies air to the outside through the first vent 111 and the working state in which the first volute 21 takes in air through the first vent 111 and exhausts air through the second vent 112; when the first vent 111 is disconnected from the outside of the first volute 21, the first volute 21 cannot supply air to the outside of the first volute 21 or take air into the first volute 21 through the first vent 111, and the first volute 21 does not work.

[0082] When the circumferential outlet is connected to the outside of the second volute 22, the second volute 22 can supply air to the outside of the second volute 22 through the circumferential outlet; when the circumferential outlet is disconnected from the outside of the second volute 22, the second volute 22 cannot supply air to the outside of the second volute 22 through the circumferential outlet.

[0083] Furthermore, the volute assembly 100 in the present application may include multiple working states, such as: when the first vent 111 is connected to the outside of the first volute 21 and the circumferential outlet is connected to the outside of the second volute 22, the volute assembly 100 can supply air through the first vent 111 and the circumferential outlet at the same time to achieve air supply in multiple directions; when the first vent 111 is connected to the outside of the first volute 21 and the circumferential outlet is disconnected from the outside of the second volute 22, the volute assembly 100 can only supply air through the first vent 111, and at this time the circumferential outlet cannot supply air, and the volute assembly 100 can also take in air through the first vent 111 and discharge it through the second vent 112 to achieve the exhaust function of the volute assembly 100; when the first vent 111 is disconnected from the outside of the first volute 21 and the circumferential outlet is connected to the outside of the second volute 22, the volute assembly 100 can only supply air through the circumferential outlet, and at this time the first vent 111 cannot supply air.

[0084] In some optional embodiments of the present invention, the switching device is used to control the connection and disconnection between the first vent 111 and the outside of the first volute 21 and the connection and disconnection between the circumferential outlet and the outside of the second volute 22, and is also used to control the opening of one of the second vent 112 and the third vent 113. Wherein, the volute assembly 100 also includes: a first shielding member 31, the first shielding member 31 is connected to the switching device and can selectively open the second vent 112; a second shielding member 32, the second shielding member 32 is connected to the switching device and can selectively open the third vent 113; a third shielding member 33, the third shielding member 33 is connected to the switching device and can selectively connect the first vent 111 and the outside of the first volute 21; a fourth shielding member 34, the fourth shielding member 34 is connected to the switching device and can selectively connect the circumferential outlet and the outside of the second volute 22.

[0085] In some optional embodiments of the present invention, one or more of the above-mentioned multiple shielding members can be constructed as a baffle, which has a simple structure and is easy to switch positions. It can be understood that the above-mentioned multiple vent structures can be opened and closed by controlling the baffle to flip or move through the switching device, and the adjustment method is simple.

[0086] In some other optional embodiments of the present invention, one or more of the above-mentioned multiple shielding members can be configured as shutters, which have a simple structure and are easy to adjust. It is understandable that the above-mentioned multiple vent structures can be opened and closed by driving the shutters to rotate. At the same time, compared with the baffle structure, the adjustment of the shutters can be achieved only at their setting positions, and there is no need to perform relatively large position changes like the baffles, which can save space for arranging shielding members in the volute assembly 100 and improve space utilization.

[0087] In some embodiments of the present invention, the exhaust port of the first diffusion section 13 is expanded along the axial direction of the volute assembly 100 so that at least a portion of the exhaust port of the first volute 21 is opposite to the second volute 22 in the radial direction of the volute assembly 100, and / or the exhaust port of the second volute 22 (i.e., a structure connected to the circumferential outlet for air flow outflow) is expanded along the axial direction of the volute assembly 100 so that at least a portion of the exhaust port of the second volute 22 is opposite to the first volute 21 in the radial direction of the volute assembly 100.

[0088] The present application includes three arrangements of exhaust port expansion, in which the exhaust port of the first diffusion section 13 expands circumferentially along the volute assembly 100, and at least a portion of the exhaust port of the first diffusion section 13 is radially opposite to the second volute 22 along the radii of the volute assembly 100, and at the same time, the exhaust port of the second volute 22 expands axially along the volute assembly 100, and at least a portion of the exhaust port of the second volute 22 is radially opposite to the first volute 21 along the radii of the volute assembly 100; only the exhaust port of the first diffusion section 13 expands axially along the volute assembly 100, and at least a portion of the exhaust port of the first diffusion section 13 is radially opposite to the second volute 22 along the radii of the volute assembly 100; only at least a portion of the exhaust port of the second volute 22 is radially opposite to the first volute 21 along the centrifugal volute. The expansion methods of the above three exhaust ports can make the heights of the two exhaust ports in the first volute 21 and the second volute 22 similar, so that the exhaust height of each exhaust port can be basically consistent, thereby ensuring the exhaust height of the two exhaust ports in the centrifugal volute, and can also increase the coverage range of the above multiple exhaust ports in the axial direction of the volute assembly 100, thereby improving the air outlet effect of the first volute 21 and the second volute 22.

[0089] In some embodiments of the present invention, on a projection plane perpendicular to the axis of the volute assembly 100, the line connecting the first volute tongue 121 and the central axis of the volute assembly 100 is the first line, the line connecting the third volute tongue 221 of the second volute 22 and the central axis of the volute assembly 100 is the second line, and the angle between the first line and the second line is α, and α satisfies the parameter range of 85°-145°. When the angle between the first line and the second line satisfies the above parameter range, the air output of the first volute 21 and the second volute 22 can be guaranteed, and the situation of the first volute 21 and the second volute 22 grabbing the wind can be avoided.

[0090] Reference Figure 4 , the air outlet direction of the first volute 21 is close to the extension direction of the first connecting line, and the air outlet direction of the second volute 22 is close to the extension direction of the second connecting line, that is, Figure 4 The volute assembly 100 can deliver air forward by tilting the first volute 21 toward the left side. Figure 5 The volute assembly 100 can supply air forwardly by tilting toward the right side through the second volute 22, so that the volute assembly 100 can supply air in two different directions.

[0091] It is understandable that when the angle between the first connecting line and the second connecting line is not within the above parameter range, there is a risk of the first volute 21 and the second volute 22 snatching the wind. When the angle between the first connecting line and the second connecting line is less than 85°, the angle between the air supply direction of the first volute 21 and the air supply direction of the second volute 22 is small, and the air supply directions are similar, which leads to the possibility of the first volute 21 and the second volute 22 snatching the wind, and the air supply effect of each volute cannot be guaranteed; when the angle between the first connecting line and the second connecting line is greater than 145°, the angle between the air supply direction of the first volute 21 and the air supply direction of the second volute 22 is large, and the air supply directions are almost opposite, which leads to the possibility of the first volute 21 and the second volute 22 snatching the wind, and the air supply effect of each volute cannot be guaranteed, and at the same time, it will increase the difficulty of arranging the first volute 21 and the second volute 22 in the volute assembly 100.

[0092] In some embodiments of the present invention, the axial height of the volute body 11 of the first volute 21 is H1, and the axial height of the second volute 22 is H2, 2 / 3≤H1 / H2≤3 / 2. By adjusting the height ratio of the volute body 11 of the first volute 21 and the second volute 22 in the axial direction, the ratio of the airflow outflowing from the wind wheel 400 received by the first volute 21 and the second volute 22 can be adjusted, and then the ratio of the airflow entering the first volute 21 and the second volute 22 can be adjusted to meet the user's demand for the air volume ratio of the two volutes.

[0093] When the first volute 21 and the second volute 22 share a wind wheel 400, the height of the volute body 11 of the first volute 21 and the height of the second volute 22 corresponding to the height of the wind wheel 400 will determine the ratio of the air volume allocated to the first volute 21 and the second volute 22. By adjusting the height ratio of the volute body 11 of the first volute 21 and the second volute 22, the air supply volume of the first volute 21 and the second volute 22 can be adjusted so that the air supply volume of the first volute 21 and the second volute 22 is close to or the same, so as to achieve balanced air supply volume at the two air supply outlets of the volute assembly 100.

[0094] It can be understood that part of the noise at the volute assembly 100 is generated by the airflow hitting the wall of the volute body 11. By adjusting the ratio of the air volume entering the first volute 21 and the second volute 22, the noise generated when the volute assembly 100 delivers air can be adjusted, so that the axial height ratio of the first volute 21 and the second volute 22 can be designed based on the air volume, noise requirements, etc.

[0095] The ventilation component 1000 according to the embodiment of the present invention comprises: a wind wheel 400 and the above-mentioned volute assembly 100 , and at least a part of the wind wheel 400 is disposed in the volute body 11 .

[0096] like Fig.11 , Fig.12 , Fig.13 and Fig.14 As shown, in some embodiments of the present invention, the wind wheel 400 may correspond to the switchable volute 10 to realize two working states of the switchable volute 10 .

[0097] Combination Figure 3 , Figure 4 and Figure 5 In some embodiments of the present invention, when the volute assembly 100 includes a first volute 21 and a second volute 22 , the first volute 21 and the second volute 22 share a wind wheel 400 .

[0098] Since the first volute 21 and the second volute 22 are arranged sequentially in the axial direction, the wind wheel 400 can correspond to the first volute 21 and the second volute 22 in the axial direction at the same time, so that air is supplied to the two volutes at the same time through one wind wheel 400, thereby reducing the number of wind wheels 400 arranged in the ventilation component 1000 and saving layout space.

[0099] The wind wheel 400 is provided with a plurality of blades, and the air entering the wind wheel 400 through the third vent 113 is worked by the blades to form a fast-flowing airflow, and the airflow flows from the radial direction of the wind wheel 400 to the first volute 21 and the second volute 22. The function of the wind wheel 400 is to work on the air in the volute to form an airflow flowing out in the radial direction of the wind wheel 400, and by matching the wind wheel 400 with the volute, air can be delivered in different directions.

[0100] In some embodiments of the present invention, the ventilation component 1000 also includes: a shell assembly 200, the shell assembly 200 is arranged outside the volute assembly 100 and defines a connecting passage 201, and the switching device is also used to control the connecting passage 201 to be connected with one of the third ventilation port 113 and the second ventilation port 112. In the first state, the connecting passage 201 is connected with the third ventilation port 113 and is separated from the second ventilation port 112. In the second state, the connecting passage 201 is connected with the second ventilation port 112 and is separated from the third ventilation port 113.

[0101] Thus, the air supply and exhaust functions of the volute assembly 100 can be met. In the first state, it is necessary to supply air to the volute assembly 100 through the third vent 113, at which time the connecting passage 201 is connected to the third vent 113, and the air in the connecting passage 201 can enter the volute through the third vent 113; in the second state, it is necessary to exhaust air outward through the second vent 112, at which time the connecting passage 201 is connected to the second vent 112, and the air flowing out through the second vent 112 will flow to the connecting passage 201, and be discharged from the ventilation component 1000 through the connecting passage 201.

[0102] In some embodiments of the present invention, the ventilation component 1000 further includes: an air treatment component 300, the air treatment component 300 is arranged in the communication channel 201, and the air treatment component 300 includes at least one of a heating component and a purification component. When the air treatment component 300 includes a heating component, the air in the communication channel 201 can be heated by the heating component, so that the temperature of the wind discharged through the ventilation component 1000 is high, and the warm air function of the ventilation component 1000 can be realized; when the air treatment component 300 includes a purification component, the purification component can purify the air in the communication channel 201, and the fresh air function of the ventilation component 1000 can be realized. It can be understood that when the air treatment component 300 includes both the purification component and the heating component, the air in the air inlet duct can be purified and heated according to the user's use requirements, so as to better meet the user's practical needs.

[0103] In some embodiments of the present invention, the purification element may be a HEPA net, which can play a good role in purifying the air. Figure 3 The purification component is arranged in the connecting channel 201. The air in the connecting channel 201 needs to enter the volute after passing through the purification component. The purification component can fully filter and purify the air and improve the air supply quality of the ventilation component 1000.

[0104] Optionally, the heating element is arranged downstream of the purification element in the connecting channel 201, that is, the air in the connecting channel 201 needs to flow through the purification component before it can contact the heating element, so that the air can be first purified by the air treatment component 300 and then heated to ensure the purification effect of the air treatment component 300 on the air.

[0105] In some embodiments of the present invention, the ventilation component 1000 further includes a driving device, which is connected to the wind wheel and is used to drive the wind wheel to rotate. The driving device is a driving motor.

[0106] The air conditioner according to an embodiment of the present invention includes: a temperature regulating component and a fresh air component. The temperature regulating component may include a fan assembly and a heat exchange assembly. The fresh air component is the above-mentioned ventilation component 1000. The first vent 111 is suitable for communicating with the indoor room, and the third vent 113 and the second vent 112 are both suitable for communicating with the outdoors.

[0107] The ventilation component 1000 has good temperature regulation and air purification capabilities, and can meet various air supply requirements of the air conditioner. In addition, the ventilation component 1000 in the present application has the ability to supply air in multiple directions at the same time, and the air supply volume in each direction is close, which can improve the air supply effect of the air conditioner. At the same time, the ventilation component 1000 can also inhale the turbid air in the room through the first vent 111 and pass it through the second vent 112. As a result, the air conditioner has the function of introducing fresh air and exhausting the turbid air in the room.

[0108] Therefore, the present application can simultaneously realize the two functions of introducing fresh air and exhausting turbid air in the room by setting a single fan structure in the air conditioner. Moreover, the flow resistance of the airflow is small in the air exhaust mode, which can avoid the problem of increased airflow loss due to excessively long flow channels, thereby improving the exhaust efficiency. In the fresh air introduction mode, air can be discharged simultaneously and in multiple directions through multiple air outlet structures.

[0109] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0110] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0111] In the present application, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. Different embodiments or examples described in this specification and features of different embodiments or examples may be combined and combined by a person skilled in the art without contradiction.

[0113] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A volute assembly, characterized in that: include: A switchable volute, the switchable volute comprising a volute body, a first volute tongue and a second volute tongue, the circumferential wall surface of the volute body having a first vent and a second vent set apart, the axial end surface of the volute body having a third vent, along the circumferential direction of the volute body, the first volute tongue is located at the downstream side edge of the first vent, and the second volute tongue is located at the downstream side edge of the second vent; A switching device, the switching device is used to switch one of the third vent and the second vent to open, and has a first state and a second state, wherein: In the first state, the third vent is open, the second vent is closed, the volute body and the first volute tongue form a centrifugal air duct, the third vent is the inlet of the centrifugal air duct, and the first vent is the outlet of the centrifugal air duct. In the second state, the second vent is opened, the third vent is closed, the volute body and the second volute tongue form a cross-flow air duct, the first vent is the inlet of the cross-flow air duct, and the second vent is the outlet of the cross-flow air duct.

2. The volute assembly according to claim 1, characterized in that: The second volute tongue is fixedly arranged in the volute body.

3. The volute assembly according to claim 1, characterized in that: The second volute tongue is movable relative to the volute body. In the first state, the second volute tongue is located outside the volute body. In the second state, the second volute tongue is located inside the volute body.

4. The volute assembly according to claim 1, characterized in that: The switchable volute also includes: a first diffusion section, one end of which is connected to the first ventilation port of the volute body, the first diffusion section defines a first air duct, in the first state, the first air duct is connected to the centrifugal air duct, in the second state, the first air duct is connected to the crossflow air duct, and the other end of the first diffusion section defines a first exhaust port of the switchable volute.

5. The volute assembly according to claim 1, characterized in that: The switchable volute also includes: a second diffusion section, one end of which is connected to the second ventilation port of the volute body, the second diffusion section defines a second air duct, in the first state, the second air duct is separated from the centrifugal air duct, in the second state, the second channel is connected to the crossflow air duct, and the other end of the second diffusion section defines a second exhaust port of the switchable volute.

6. The volute assembly according to any one of claims 1 to 5, characterized in that: The volute assembly includes a plurality of volutes sequentially arranged along the axial direction of the volute assembly, and at least one of the volutes is the switchable volute.

7. The volute assembly according to claim 6, characterized in that: The multiple volutes include a first volute and a second volute, the first volute is the switching volute, the second volute is a centrifugal volute and includes a third volute tongue, the second volute is arranged on the side of the first volute in the axial direction away from the third vent, the first volute is provided with a fourth vent on the axial side facing the second volute, the second volute is provided with an axial inlet suitable for communicating with the fourth vent on the axial side facing the first volute, the second volute has a circumferential outlet on the circumferential wall surface, and along the circumference of the volute assembly, the third volute tongue is located at the downstream edge of the circumferential outlet, and the positions of the circumferential outlet and the first and second vents are different.

8. The volute assembly according to claim 7, characterized in that: The switching device is also used to control: the connection and disconnection between the first vent and the outside of the first volute, and the connection and disconnection between the circumferential outlet and the outside of the second volute.

9. A ventilation component, characterized in that: include: A wind wheel and a volute assembly according to any one of claims 1 to 8, wherein at least a portion of the wind wheel is disposed within the volute body.

10. The ventilation component according to claim 9, characterized in that When the volute assembly includes the first volute and the second volute, the first volute and the second volute share one wind wheel.

11. The ventilation component according to claim 9, characterized in that: Also includes: A shell assembly, wherein the shell assembly is arranged outside the volute assembly and defines a connecting passage, and the switching device is also used to control the connection between the connecting passage and one of the third vent and the second vent. In the first state, the connecting passage is connected to the third vent and is separated from the second vent. In the second state, the connecting passage is connected to the second vent and is separated from the third vent.

12. The ventilation component according to claim 11, characterized in that Also includes: An air treatment component is arranged in the communication passage and includes at least one of a heating component and a purification component.

13. An air conditioner, characterized in that: include: A temperature regulating component, wherein the temperature regulating component may include a fan component and a heat exchange component; A fresh air component, wherein the fresh air component is a ventilation component according to any one of claims 9 to 12, wherein the first vent is suitable for communicating with indoors, and the third vent and the second vent are suitable for communicating with outdoors.

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