Fresh air structure, air conditioning equipment and fresh air structure control method

Abstract

The present disclosure relates to providing a fresh air structure, an air conditioning device, and a fresh air structure control method. The fresh air structure includes an air duct; a air supply assembly, the air supply assembly includes an air box, a volute, and a fan. The air box and the volute are communicated with each other and form an accommodation space. The fan is located in the accommodation space. The air box is provided with a first air outlet and a second air outlet. The air duct is connected to the first air outlet. The volute is provided with an air outlet; and an exhaust air duct, the exhaust air duct communicates the volute with the air duct. The fresh air structure has a first working mode and a second working mode. In the first working mode, the air outlet and the first air outlet are opened and the second air outlet is closed. The fan is used to send outdoor air to the indoor through the air outlet. In the second working mode, the air outlet and the first air outlet are closed and the second air outlet is opened. The fan is used to send indoor air to the outdoor through the exhaust air duct and the air duct. Through the above design method, the actual use effect of the fresh air function of the air conditioner can be enhanced.

Description

Technical Field

[0001] The present disclosure relates to the field of air conditioning, and in particular to a fresh air structure, an air conditioning device, and a fresh air structure control method. Background Art

[0002] In the related art, most of the fresh air modules of fresh air air conditioners are one-way flow fresh air, that is, they only have the function of transporting outdoor fresh air to indoor areas.

[0003] With the refinement of commercial housing decoration, the airtightness of rooms is increasing day by day, especially in areas with large seasonal temperature differences, where the rooms are highly sealed and heat-insulating. The one-way fresh air flow of related technologies is affected by the air pressure in the room. If fresh air is continuously and uninterruptedly delivered to the room, when the room pressure exceeds the pressure that the fresh air system can provide, fresh air cannot be delivered, and the fresh air effect of the fresh air air conditioner is basically lost. Summary of the invention

[0004] The purpose of the present disclosure is to provide a fresh air structure, air conditioning equipment and a fresh air structure control method, which can enhance the actual use effect of the fresh air function of the air conditioner.

[0005] According to a first aspect of an embodiment of the present disclosure, a fresh air structure is provided, comprising an air duct; an air supply component, the air supply component comprising a bellows, a volute and a fan, the bellows and the volute are connected to each other and form a accommodating space, the fan is located in the accommodating space, the bellows is provided with a first air outlet and a second air outlet, the air duct is connected to the first air outlet, the volute is provided with an air outlet; and an exhaust duct, the exhaust duct connecting the volute and the air duct; the fresh air structure has a first working mode and a second working mode, in the first working mode, the air outlet and the first air outlet are opened and the second air outlet is closed, the fan is used to deliver outdoor air to the room through the air outlet; in the second working mode, the air outlet and the first air outlet are closed and the second air outlet is opened, the fan is used to deliver indoor air to the outside through the exhaust duct and the air duct.

[0006] Optionally, the first air outlet and the second air outlet are located on the same side wall or different side walls of the air box.

[0007] Optionally, the fresh air structure also includes a first blocking member, a second blocking member, a first driving member and a second driving member, the first blocking member and the second blocking member are both movably connected to the bellows, the first driving member is transmission-connected to the first blocking member to open or close the first air outlet, and the second driving member is transmission-connected to the second blocking member to open or close the second air outlet.

[0008] Optionally, the first blocking member is slidably connected to the bellows, and the first driving member is configured as a linear motor or a cylinder; alternatively, the first blocking member is hinged to the bellows, and the first driving member is configured as a rotary motor.

[0009] Optionally, the second blocking member is slidably connected to the bellows, and the second driving member is configured as a linear motor or a cylinder; alternatively, the second blocking member is hinged to the bellows, and the second driving member is configured as a rotary motor.

[0010] Optionally, the fresh air structure further includes a third blocking member and a third driving member. The third driving member is drivingly connected to the third blocking member. In the first working mode, the third driving member drives the third blocking member to move in a first direction to open the first air outlet and close the second air outlet; in the second working mode, the third driving member drives the third blocking member to move in a second direction opposite to the first direction to close the first air outlet and open the second air outlet.

[0011] Optionally, the first air outlet and the second air outlet are located on the same side wall of the bellows, and the third driving member drives the third blocking member to move parallel to the side wall; alternatively, the third driving member drives the third blocking member to rotate about a rotation axis parallel to the side wall, and the rotation axis is located between the first air outlet and the second air outlet.

[0012] Optionally, the first air outlet and the second air outlet are located on two adjacent side walls of the bellows, and the third driving member drives the third blocking member to rotate to switch between the first working mode and the second working mode.

[0013] Optionally, in the first working mode, the exhaust pipe is not communicated with the volute; in the second working mode, the exhaust pipe is communicated with the volute.

[0014] Optionally, the fresh air structure further includes a fourth blocking member and a fourth driving member, and the fourth driving member drives the fourth blocking member to block or open the communication between the exhaust pipe and the volute.

[0015] Optionally, the fresh air structure further includes a fifth blocking member and a fifth driving member. The fifth driving member drives the fifth blocking member to move. The fourth blocking member and the fifth blocking member are respectively located at two ends of the exhaust pipe. In the first working mode, the fourth blocking member and the fifth blocking member block the two ends of the exhaust pipe; in the second working mode, the fourth blocking member and the fifth blocking member open the two ends of the exhaust pipe.

[0016] Optionally, the fresh air structure further includes a connecting shell, which covers the first air outlet and is fixedly connected to the air box, and the air duct is communicated with the connecting shell.

[0017] Optionally, the fresh air structure further includes a sixth plugging member and a sixth driving member. The sixth plugging member is movably connected to the volute, and the sixth driving member drives the sixth plugging member to close or open the air outlet.

[0018] According to a second aspect of the embodiments of the present disclosure, there is provided an air conditioning device, including an indoor unit of the air conditioner. The air conditioning device further includes the above-mentioned fresh air structure. The air supply assembly is arranged in the indoor unit of the air conditioner, and the air duct is connected to the air supply assembly and extends to the outside of the room.

[0019] According to a third aspect of the embodiments of the present disclosure, there is provided a fresh air structure control method, using the above-mentioned fresh air structure. The control method includes: switching the fresh air structure between the first working mode and the second working mode according to a preset interval time.

[0020] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: When using the fresh air structure of the present disclosure, one end of the air duct extends to the outside of the room. When fresh air needs to be supplied to the room, the fresh air structure is in the first working mode. At this time, the second air outlet is closed. During the operation of the air supply assembly, under the action of the fan, the fresh air outside the room enters the air box from the air duct, then flows from the air box to the volute, and finally is discharged from the air outlet, so as to achieve the effect of sending fresh air from the outside of the room into the room. After fresh air is continuously supplied into the room for a period of time, the air density in the room increases, and the air pressure will increase to a certain extent. When the indoor air pressure exceeds the pressure that the fresh air system can provide, fresh air can no longer be supplied. At this time, the fresh air structure is adjusted to the second working mode, the air outlet is closed, so that fresh air no longer enters the room through the air outlet, and at the same time the first air outlet is closed, that is, the air duct is not directly communicated with the air box, but the air duct is communicated with the volute through the exhaust duct. In the second working mode, the second air outlet is opened. When the air supply assembly operates, the indoor air will enter the air box from the second air outlet, and then enter the volute under the action of the fan. Since the air outlet is closed, the air in the volute will enter the exhaust duct, then enter the air duct from the exhaust duct, and finally be discharged to the outside of the room through the air duct, so as to achieve the effect of discharging the indoor air to the outside of the room, and at the same time can play a role in relieving the indoor pressure. After discharging the indoor air to the outside for a period of time, the fresh air structure is adjusted to the first working mode, and fresh air is continuously supplied. After fresh air is supplied for a period of time, it is adjusted to the second working mode again. In this way, the two working modes are alternately carried out, so that fresh air can be supplied regularly, reducing the possibility that fresh air cannot be supplied due to excessive indoor air pressure, and enhancing the actual use effect of the fresh air function of the air conditioner.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure. Other features and advantages of the present disclosure will be described in detail in the following detailed implementation section.

[0022] Description of Reference Numerals

[0023] 1 - Air duct; 2 - Air supply component; 21 - Air box; 211 - First air outlet; 212 - Second air outlet; 22 - Volute; 221 - Air outlet; 222 - Disc part; 223 - Air outlet part; 3 - Exhaust duct; 4 - First plugging member; 5 - Second plugging member; 6 - Third plugging member; 7 - Fourth plugging member; 8 - Fifth plugging member; 9 - Connecting shell. Brief Description of the Drawings

[0024] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0025] Figure 1 It is a schematic diagram of the overall structure of the fresh air structure according to an embodiment of the present disclosure, aiming to show the internal structure;

[0026] Figure 2 It is a schematic diagram of the structure of the first plugging member and the second plugging member of the fresh air structure according to an embodiment of the present disclosure;

[0027] Figure 3 It is a side view of the fresh air structure according to an embodiment of the present disclosure;

[0028] Figure 4 It is a schematic diagram of the structure of the first implementation manner of the third plugging member of the fresh air structure according to an embodiment of the present disclosure;

[0029] Figure 5 It is a schematic diagram of the structure of the second implementation manner of the third plugging member of the fresh air structure according to an embodiment of the present disclosure;

[0030] Figure 6 It is a schematic diagram of the structure of the third implementation manner of the third plugging member of the fresh air structure according to an embodiment of the present disclosure. Detailed Implementation Manner

[0031] The following details the specific implementation manner of the present disclosure with reference to the drawings. It should be understood that the specific implementation manner described herein is only for explaining and illustrating the present disclosure, and does not limit the present disclosure.

[0032] In the present disclosure, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to "upper" and "lower" relative to the gravity direction when the corresponding components are in use, and "upper" and "lower" respectively correspond to Figure 2 and Figure 3For the upper and lower positions herein, "inner" and "outer" are defined relative to the contour of the corresponding component itself, and "far" and "near" are defined relative to a comparison reference. In addition, terms such as "first", "second", "third", "fourth", "fifth", "sixth", etc. used in this disclosure are for distinguishing one element from another, and do not have sequential or importance significance. In the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements. The above definitions are only for explaining and illustrating this disclosure, and should not be construed as a limitation to this disclosure.

[0033] According to a specific embodiment of the present disclosure, as shown in Figures 1 to 3 a fresh air structure includes an air duct 1; a air supply assembly 2, the air supply assembly 2 may include an air box 21, a volute 22 and a fan. The air box 21 communicates with the volute 22 to form a receiving space, and the fan is located in the receiving space. The air box 21 is provided with a first air outlet 211 and a second air outlet 212. The air duct 1 is connected to the first air outlet 211, and the volute 22 is provided with an air outlet 221; and an exhaust air duct 3, the exhaust air duct 3 communicates the volute 22 with the air duct 1. The fresh air structure has a first working mode and a second working mode. In the first working mode, the air outlet 221 and the first air outlet 211 are opened and the second air outlet 212 is closed, and the fan is used to send outdoor air to the indoor through the air outlet 221; in the second working mode, the air outlet 221 and the first air outlet 211 are closed and the second air outlet 212 is opened, and the fan is used to send indoor air to the outdoor through the exhaust air duct 3 and the air duct 1.

[0034] With the above technical solution, when using the fresh air structure of the present disclosure, one end of the air duct 1 extends outdoors. When fresh air needs to be delivered indoors, the fresh air structure is in the first working mode. At this time, the second air outlet 212 is closed. During the operation of the air supply component 2, under the action of the fan, fresh air outdoors enters the air box 21 from the air duct 1, then flows from the air box 21 to the volute 22, and finally is discharged from the air outlet 221, thereby achieving the effect of delivering outdoor fresh air indoors. After fresh air is continuously delivered indoors for a period of time, the density of indoor air increases, and the air pressure will increase to a certain extent. When the indoor air pressure exceeds the pressure that the fresh air system can provide, fresh air can no longer be delivered. At this time, the fresh air structure can be adjusted to the second working mode, the air outlet 221 is closed, so that fresh air does not enter the room through the air outlet 221, and at the same time the first air outlet 211 is closed, that is, the air duct 1 is no longer directly connected to the air box 21, but instead the air duct 1 is connected to the volute 22 through the exhaust duct 3. In the second working mode, the second air outlet 212 is opened. When the air supply component 2 operates, indoor air will enter the air box 21 from the second air outlet 212, and then enter the volute 22 under the action of the fan. Since the air outlet 221 is closed, the air in the volute 22 will enter the exhaust duct 3, then enter the air duct 1 from the exhaust duct 3, and finally be discharged outdoors through the air duct 1, thereby achieving the effect of discharging indoor air outdoors, and at the same time being able to play a role in relieving indoor pressure. After discharging indoor air outdoors for a period of time, the fresh air structure is adjusted to the first working mode to continue delivering fresh air. After delivering fresh air for a period of time, it is adjusted to the second working mode again. In this way, the two working modes are alternately carried out, so that fresh air can be delivered regularly, reducing the possibility that fresh air cannot be delivered due to excessive indoor air pressure, and enhancing the actual use effect of the fresh air function of the air conditioner.

[0035] Reference Figures 1 to 3As shown, the volute 22 includes a disc portion 222 and an air outlet portion 223. The air outlet portion 223 is connected to and communicates with the disc portion 222. The air outlet 221 is the port of the air outlet portion 223 away from the disc portion 222. One end of the exhaust duct 3 communicates with the air outlet portion 223, and the other end communicates with the air duct 1. Among them, the exhaust duct 3 can be designed as a square duct or a circular duct according to specific needs. In order to save space or cooperate with the installation, the exhaust duct 3 can be a flexible duct so that the exhaust duct 3 can be bent during the installation process to adapt to the positional relationship between the volute 22 and the air duct 1. In addition, the exhaust duct 3 can also be formed into the required shape and length before installation. The present disclosure does not make specific restrictions on this. Among them, when the first air outlet 211 described in the present disclosure is opened, it means that the air duct 1 can communicate with the air box 21 through the first air outlet 211. When the first air outlet 211 is closed, it means that the air duct 1 is not connected to the air box 21. When the second air outlet 212 is opened, it means that the air box 21 can communicate with the room through the second air outlet 212. When the second air outlet 212 is closed, it means that the air box 21 is not connected to the room. Similarly, when the air outlet 221 is opened, it means that the volute 22 is connected to the room. When the air outlet 221 is closed, it means that the volute 22 is not connected to the room.

[0036] In the specific embodiments provided by the present disclosure, referring to Figure 1 and Figure 2 as shown, the first air outlet 211 and the second air outlet 212 can be located on the same side wall of the air box 21 or on different side walls of the air box 21. Through the above design method, no matter where the first air outlet 211 and the second air outlet 212 are arranged on the air box 21, only the first air outlet 211 and the second air outlet 212 need to be alternately opened. Among them, the air box 21 is usually a rectangular box structure, and the specific shape of the air box 21 can also be set according to requirements to design the positions of the first air outlet 211 and the second air outlet 212. The present disclosure does not make specific restrictions on this.

[0037] In order to facilitate the blocking of the first air outlet 211 and the second air outlet 212, in the specific embodiments provided by the present disclosure, referring to Figure 1 and Figure 2As shown in , the fresh air structure may also include a first blocking member 4, a second blocking member 5, a first driving member and a second driving member. The first blocking member 4 and the second blocking member 5 are both movably connected to the bellows 21. The first driving member is connected to the first blocking member 4 to open or close the first air outlet 211, and the second driving member is connected to the second blocking member 5 to open or close the second air outlet 212. Through the above-mentioned design, in the first working mode, the first driving member drives the first blocking member 4 to open the first air outlet 211, and the second driving member drives the second blocking member 5 to close the second air outlet 212, so that fresh air can enter the room from the outside through the air supply component 2. In the second working mode, the first driving member drives the first blocking member 4 to close the first air outlet 211, and the second driving member drives the second blocking member 5 to open the second air outlet 212, so that the indoor air can enter from the second air outlet 212, and then be discharged to the outside through the exhaust duct 3 and the air duct 1.

[0038] The second blocking member 5 can be arranged inside the bellows 21 to save space, and similarly, the second blocking member 5 can also be arranged outside the bellows 21. In addition, the first driving member and the second driving member can be fixedly arranged on the bellows 21, or can be arranged inside the bellows 21, as long as they can drive the first blocking member 4 and the second blocking member 5 correspondingly, and the present disclosure does not make any specific restrictions on this.

[0039] In the fresh air structure provided in the present disclosure, the first blocking member 4 can be movably connected to the wind box 21 in any suitable manner.

[0040] In one embodiment provided by the present disclosure, the first blocking member 4 can be slidably connected to the bellows 21. In this case, the first driving member can be constructed as a linear motor or a cylinder. The first blocking member 4 can be a rectangular plate, and a slide rail can be provided on the bellows 21. The first blocking member 4 and the slide rail are slidably matched to realize the sliding connection between the first blocking member 4 and the bellows 21. The first driving member is provided in the sliding direction of the first blocking member 4, and the driving end of the first driving member is fixedly connected to the first blocking member 4, so as to drive the first blocking member 4 to slide.

[0041] In another embodiment provided by the present disclosure, the first blocking member 4 may also be hinged to the bellows 21. In this embodiment, the first driving member may be configured as a rotary motor. The first driving member may be fixedly connected to the rotating shaft of the first blocking member 4 through a coupling as a transmission mechanism, or a connecting rod mechanism may be used as a transmission mechanism to achieve a transmission connection between the first driving member and the first blocking member 4, thereby driving the first blocking member 4 to rotate.

[0042] Similarly, in the fresh air structure provided in the present disclosure, the second blocking member 5 can be movably connected to the wind box 21 in any suitable manner.

[0043] In one embodiment provided by the present disclosure, the second blocking member 5 can be slidably connected to the bellows 21, and the second driving member can be constructed as a linear motor or a cylinder. The second blocking member 5 can be a rectangular plate, and a slide rail can be provided on the bellows 21. The second blocking member 5 and the slide rail are slidably matched to realize the sliding connection between the second blocking member 5 and the bellows 21. The second driving member is provided in the sliding direction of the second blocking member 5, and the driving end of the second driving member is fixedly connected to the second blocking member 5, so as to drive the second blocking member 5 to slide.

[0044] In another embodiment provided by the present disclosure, the second blocking member 5 may also be hinged to the bellows 21. In this embodiment, the second driving member may be configured as a rotary motor. The second driving member may be fixedly connected to the rotating shaft of the second blocking member 5 through a coupling as a transmission mechanism, or a connecting rod mechanism may be used as a transmission mechanism to achieve a transmission connection between the second driving member and the second blocking member 5, thereby driving the second blocking member 5 to rotate.

[0045] In order to save cost and space and reduce the number of blocking structures and driving structures, in other embodiments provided in the present disclosure, reference is made to Figures 4 to 6 As shown in , the fresh air structure may also include a third blocking member 6 and a third driving member, the third driving member is connected to the third blocking member 6 in a transmission manner, and in the first working mode, the third driving member drives the third blocking member 6 to move in the first direction to open the first air outlet 211 and close the second air outlet 212; in the second working mode, the third driving member drives the third blocking member 6 to move in the second direction opposite to the first direction to close the first air outlet 211 and open the second air outlet 212. Through the above design, only one third blocking member 6 is needed to achieve the alternating closure of the first air outlet 211 and the second air outlet 212. Accordingly, only one third driving member is needed to drive the third blocking member 6, which reduces the equipment structure, and also reduces the cost and production difficulty.

[0046] In the above embodiment, the first air outlet 211 and the second air outlet 212 may be disposed at any position of the wind box 21 .

[0047] In one embodiment provided in the present disclosure, the first air outlet 211 and the second air outlet 212 are located on the same side wall of the wind box 21. Figure 4 As shown, the third driving member can drive the third blocking member 6 to move parallel to the side wall. In this embodiment, the first direction and the second direction are Figure 4The third blocking member 6 moves in the direction marked in the figure, and the first direction and the second direction are both parallel to the side wall of the bellows 21 where the first air outlet 211 and the second air outlet 212 are opened. The third blocking member 6 moves in the first direction to open the first air outlet 211 and close the second air outlet 212 at the same time, and moves in the second direction to open the second air outlet 212 and close the first air outlet 211 at the same time. The third driving member can be a linear motor or a driving cylinder, or a rotary motor and is connected to the third blocking member 6 through a transmission structure (such as a gear rack transmission structure, etc.), thereby converting the rotation of the rotary motor into the linear motion of the third blocking member 6 through the transmission structure, so that the first air outlet 211 and the second air outlet 212 are intermittently closed and opened through the third blocking member 6.

[0048] In another embodiment provided by the present disclosure, reference Figure 5 As shown, the third driving member drives the third blocking member 6 to rotate around a rotation axis parallel to the side wall, and the rotation axis is located between the first air outlet 211 and the second air outlet 212. In this embodiment, the first direction and the second direction are Figure 5 In the direction marked in, the third blocking member 6 is rotatably connected to the side wall of the bellows 21 via a hinge shaft, wherein the third driving member may be a rotating motor. When the third driving member drives the third blocking member 6 to rotate in the first direction, the first air outlet 211 can be opened while the second air outlet 212 can be closed. When the third driving member drives the third blocking member 6 to rotate in the second direction, the second air outlet 212 can be opened while the first air outlet 211 can be closed.

[0049] In another embodiment provided by the present disclosure, reference Figure 6 As shown, the first air outlet 211 and the second air outlet 212 can be located on two adjacent side walls of the wind box 21, and the third driving member drives the third blocking member 6 to rotate to switch between the first working mode and the second working mode. In this embodiment, the third blocking member 6 is hinged to the inner wall of the wind box 21, and the first direction and the second direction are Figure 6 The directions shown in the figure, wherein the first direction is the direction of the side wall of the bellows 21 where the second air outlet 212 is provided, and the second direction is the direction of the side wall of the bellows 21 where the first air outlet 211 is provided. The third driving member can be a rotating motor, and is connected to the third blocking member 6 through a transmission mechanism such as a coupling or a gear set, so as to drive the rotation of the third blocking member 6, thereby realizing the switching of the fresh air structure disclosed in the present invention between the first working mode and the second working mode.

[0050] In order to improve the efficiency of delivering fresh air to the room, in the specific embodiment provided by the present disclosure, in the first working mode, the exhaust pipe 3 is not connected to the volute 22; in the second working mode, the exhaust pipe 3 is connected to the volute 22. Through the above design, in the first working mode, after the outdoor fresh air is sucked into the volute 22, it will be directly discharged from the opened air outlet 221, and will not enter the exhaust pipe 3 and flow back to the wind box 21, thereby improving the efficiency of fresh air delivery. When the fresh air structure is in the second working mode, the exhaust pipe 3 and the volute 22 are connected. Since the air outlet 221 is closed at this time, the air in the volute 22 will enter the exhaust pipe 3, and then be discharged to the outside through the air duct 1.

[0051] The connection or disconnection between the exhaust pipe 3 and the volute 22 can be achieved in any suitable manner.

[0052] In one embodiment provided in the present disclosure, an air valve that can be electrically controlled can be set in the exhaust duct 3. In a first working mode, the air valve is closed, and the exhaust duct 3 is not connected to the volute 22. In a second working mode, the air valve is opened, and the exhaust duct 3 is connected to the volute 22.

[0053] In another embodiment provided by the present disclosure, the fresh air structure may further include a fourth blocking member 7 and a fourth driving member, and the fourth driving member drives the fourth blocking member 7 to block or open the connection between the exhaust pipe 3 and the volute 22. Through the above-mentioned design, in the first working mode, the fourth driving member drives the fourth blocking member 7 to block the exhaust pipe 3, so that the fresh air to be delivered into the room will not return from the exhaust pipe 3 to the wind box 21 and the air duct 1, thereby improving the efficiency of delivering the fresh air into the room. When the fresh air structure is in the second working mode, the fourth driving member drives the fourth blocking member 7 to open the exhaust pipe 3. Among them, the fourth blocking member 7 can be set at any position in the exhaust pipe 3, such as the two ends of the exhaust pipe 3 and the middle of the exhaust pipe 3, and the present disclosure does not make specific restrictions on this. In addition, the exhaust pipe 3 can be a rectangular pipe, the fourth blocking member 7 can be a rectangular sheet, and the fourth blocking member 7 can be hinged with the inner wall of the exhaust pipe 3 to achieve active connection. In this case, the fourth driving member can be a rotating motor and is connected to the fourth blocking member 7 in a transmission manner. Alternatively, the fourth blocking member 7 may be slidably disposed in the exhaust duct 3. In this case, a sliding opening is provided on the wall of the exhaust duct 3 for inserting the fourth blocking member 7. When the fourth blocking member 7 is fully inserted, the exhaust duct 3 is blocked. When the fourth blocking member 7 partially or completely slides out from the inside of the exhaust duct 3 to the outside, the exhaust duct 3 is connected to the volute 22. In this embodiment, the fourth driving member may be a driving cylinder.

[0054] In order to reduce the resistance of wind flow and further improve the effect of fresh air entering, in other embodiments provided in the present disclosure, reference is made to Figure 1As shown in , the fresh air structure also includes a fifth blocking member 8 and a fifth driving member. The fifth driving member drives the fifth blocking member 8 to move. The fourth blocking member 7 and the fifth blocking member 8 are respectively located at both ends of the exhaust duct 3. In the first working mode, the fourth blocking member 7 and the fifth blocking member 8 block both ends of the exhaust duct 3; in the second working mode, the fourth blocking member 7 and the fifth blocking member 8 open both ends of the exhaust duct 3. Through the above-mentioned design, in the first working mode, when the outdoor fresh air enters the wind box 21 from the wind duct 1, it will not enter the exhaust duct 3, but directly enter the wind box 21, and then enter the volute 22 from the wind box 21. After the fresh air enters the volute 22, it will not enter the exhaust duct 3 either. The fresh air will be directly sent into the room from the air outlet 221 of the volute 22, reducing the resistance of the fresh air flow. Among them, the fourth blocking member 7 can be set at the connecting position between the exhaust duct 3 and the volute 22, the fifth blocking member 8 can be set at the connecting position between the exhaust duct 3 and the air duct 1, and the way in which the fifth driving member drives the fifth blocking member 8 can be the same as the way in which the fourth driving member drives the fourth blocking member 7, so it will not be repeated.

[0055] In the specific embodiments provided in the present disclosure, reference is made to Figures 1 to 3 As shown, the fresh air structure may further include a connecting shell 9, which is covered at the first air outlet 211 and fixedly connected to the wind box 21, and the air duct 1 is connected to the connecting shell 9. Through the above design, an installation position can be provided for the connection of the air duct 1, which is convenient for assembling the air duct 1 on the wind box 21. Among them, the connecting shell 9 is located below the wind box 21, and the connection position between the connecting shell 9 and the wind box 21 can be the first air outlet 211. A mounting ring is provided on the connecting shell 9, and the air duct 1 can be installed on the mounting ring by screwing, or fixed to the mounting ring by a clamp, and one end of the exhaust pipe 3 used for connecting the air duct 1 can be fixed and connected to the connecting shell 9.

[0056] In order to facilitate the closing of the air outlet 221, in the specific embodiment provided in the present disclosure, the fresh air structure also includes a sixth blocking member and a sixth driving member, the sixth blocking member is movably connected to the volute 22, and the sixth driving member drives the sixth blocking member to close or open the air outlet 221. Through the above-mentioned design, in the first working mode, the sixth blocking member opens the air outlet 221, and in the second working mode, the sixth blocking member closes the air outlet 221, so as to realize the switching of the air outlet 221 between closing and opening in the two working modes. Among them, the sixth blocking member is arranged at the air outlet 221, and can be slidably connected with the volute 22, the sixth driving member can be a driving cylinder, so as to drive the sixth blocking member to slide, in other embodiments, the sixth blocking member can be hinged with the volute 22, the sixth driving member is a rotating motor, and is connected to the sixth blocking member through a transmission mechanism to drive the sixth blocking member to rotate.

[0057] Based on the above technical solutions, the present disclosure further provides an air conditioning device, including an indoor unit of the air conditioner. The air conditioning device further includes the above fresh air structure. The air supply assembly 2 is arranged in the indoor unit of the air conditioner, and the air duct 1 is connected to the air supply assembly 2 and extends to the outside. Through the above design, the fresh air structure in the air conditioning device can alternately switch between the first working mode and the second working mode, so that after the fresh air is sent into the room for a period of time, the indoor air can be discharged to the outside for a period of time, and this alternation reduces the possibility that the outdoor fresh air cannot be sent in due to excessive indoor air pressure, making the fresh air function of the air conditioning device better.

[0058] Based on the above technical solutions, the present disclosure further provides a control method for the fresh air structure. Using the above fresh air structure, the control method includes: switching the fresh air structure between the first working mode and the second working mode according to a preset interval time. Through the above design, the two working modes of the fresh air structure can be alternated, so that the fresh air can be delivered regularly, reducing the possibility that the fresh air cannot be sent in due to excessive indoor air pressure, and enhancing the actual use effect of the fresh air function of the air conditioner. Among them, the switching from the first working mode to the second working mode can be based on the first preset interval time, and the switching from the second working mode to the first working mode can be based on the second preset interval time. The first preset interval time and the second preset interval time can be equal or different.

[0059] The specific implementation principle of the embodiment of the present disclosure is as follows: When it is necessary to introduce outdoor fresh air into the room, the fresh air structure is in the first working mode. At this time, the second air outlet 212 is closed, and both ends of the exhaust air duct 3 are closed. When the air supply assembly 2 operates, the outdoor fresh air enters the air box 21 from the air duct 1, then enters the volute 22 from the air box 21, and finally is discharged from the air outlet 221 of the volute 22 to realize the supply of fresh air into the room. After the fresh air is sent for a period of time, the air outlet 221 and the first air outlet 211 are closed, the second air outlet 212 and both ends of the exhaust air duct 3 are opened, so that the room is communicated with the air box 21 through the second air outlet 212, and the volute 22 is communicated with the connection shell 9 through the exhaust air duct 3. At this time, when the air supply assembly 2 operates, the indoor air is sucked into the air box 21, then enters the volute 22, is sent to the air duct 1 through the exhaust air duct 3, and finally is sent out of the room through the air duct 1 to realize the discharge of the indoor air. By adopting the fresh air structure of the present disclosure, it can be switched between the first working mode and the second working mode, reducing the possibility that the fresh air cannot be sent in due to excessive indoor air pressure, and enhancing the actual use effect of the fresh air function of the air conditioner.

[0060] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0061] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A fresh air structure, characterized in that, include: Air duct; An air supply component, the air supply component comprising a bellows, a volute and a fan, the bellows and the volute are connected to each other and form a storage space, the fan is located in the storage space, the bellows is provided with a first air outlet and a second air outlet, the air duct is connected to the first air outlet, and the volute is provided with an air outlet; as well as An exhaust pipe, the exhaust pipe connecting the volute and the air pipe; The fresh air structure has a first working mode and a second working mode. In the first working mode, the air outlet and the first air outlet are open and the second air outlet is closed, and the fan is used to deliver outdoor air to the room through the air outlet; In the second working mode, the air outlet and the first air outlet are closed and the second air outlet is opened, and the fan is used to send indoor air to the outside through the exhaust pipe and the air duct. In the first working mode, the exhaust duct is not connected to the volute; in the second working mode, the exhaust duct is connected to the volute, and the fresh air structure also includes a fourth blocking member, a fourth driving member, a fifth blocking member and a fifth driving member. The fourth driving member drives the fourth blocking member to block or open the connection between the exhaust duct and the volute, and the fifth driving member drives the fifth blocking member to move. The fourth blocking member and the fifth blocking member are respectively located at two ends of the exhaust duct. In the first working mode, the fourth blocking member and the fifth blocking member block two ends of the exhaust duct; in the second working mode, the fourth blocking member and the fifth blocking member open two ends of the exhaust duct.

2. The fresh air structure according to claim 1, characterized in that, The first air outlet and the second air outlet are located on the same side wall or different side walls of the air box.

3. The fresh air structure according to claim 2, characterized in that The fresh air structure also includes a first blocking member, a second blocking member, a first driving member and a second driving member. The first blocking member and the second blocking member are both movably connected to the bellows. The first driving member is transmission-connected to the first blocking member to open or close the first air outlet. The second driving member is transmission-connected to the second blocking member to open or close the second air outlet.

4. The fresh air structure according to claim 3, characterized in that, The first blocking member is slidably connected to the bellows, and the first driving member is configured as a linear motor or a cylinder; or, The first blocking member is hinged to the bellows, and the first driving member is configured as a rotary motor.

5. The fresh air structure according to claim 3, wherein, The second blocking member is slidably connected to the bellows, and the second driving member is configured as a linear motor or a cylinder; or, The second blocking member is hinged to the bellows, and the second driving member is configured as a rotary motor.

6. The fresh air structure according to claim 2, characterized in that The fresh air structure further includes a third blocking member and a third driving member, wherein the third driving member is transmission-connected to the third blocking member. In the first working mode, the third driving member drives the third blocking member to move along the first direction to open the first air outlet and close the second air outlet; In the second working mode, the third driving member drives the third blocking member to move in a second direction opposite to the first direction, so as to close the first air outlet and open the second air outlet.

7. The fresh air structure according to claim 6, characterized in that, The first air outlet and the second air outlet are located on the same side wall of the air box, and the third driving member drives the third blocking member to move parallel to the side wall; or, The third driving member drives the third blocking member to rotate about a rotation axis parallel to the side wall, and the rotation axis is located between the first air outlet and the second air outlet.

8. The fresh air structure according to claim 6, wherein The first air outlet and the second air outlet are located on two adjacent side walls of the air box, and the third driving member drives the third blocking member to rotate so as to switch between the first working mode and the second working mode.

9. The fresh air structure according to claim 1, wherein The fresh air structure further includes a connection shell, the connection shell covers the first air outlet and is fixedly connected to the air box, and the air duct is communicated with the connection shell.

10. The fresh air structure according to claim 1, characterized in that, The fresh air structure further includes a sixth blocking member and a sixth driving member, the sixth blocking member is movably connected to the volute, and the sixth driving member drives the sixth blocking member to close or open the air outlet.

11. An air conditioning device, including an indoor unit of the air conditioner, characterized in that, The air conditioning equipment further includes the fresh air structure according to any one of claims 1-10, the air supply assembly is arranged in the indoor unit of the air conditioner, and the air duct is connected to the air supply assembly and extends to the outside.

12. A fresh air structure control method, characterized in that, Using the fresh air structure according to any one of claims 1-10, the control method includes: Switching the fresh air structure between the first working mode and the second working mode according to a preset interval time.

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