A fresh air device and a fresh air air conditioner having the same.

Abstract

This invention provides a fresh air device and a fresh air air conditioner having the same. The fresh air device includes a base and a filter module. The base forms a fresh air duct. The filter module includes a filter shell and a filter screen. The filter shell is disposed in the fresh air duct and has filter holes, which are connected to the fresh air duct. The filter screen includes a first end and a second end. The first end and the second end are movable relative to each other. When the fresh air flowing through the fresh air duct needs to be treated, the first end and the second end are in an unfolded position, and the filter screen is unfolded and covers the filter holes, thus filtering the fresh air flowing through the filter holes and ensuring the quality of the fresh air. When the fresh air flowing through the fresh air duct does not need to be treated, the first end and the second end are in a collecting position, and the filter screen is in a collecting state and close to the hole wall of the filter holes, so that the fresh air in the fresh air duct does not flow through the filter screen, reducing the loss of fresh air flow. A first connecting rod is connected to the first end, and a second connecting rod is connected to the second end and rotates relative to the first connecting rod.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning equipment technology, and particularly relates to a fresh air device and a fresh air air conditioner having the same. Background Technology

[0002] With the continuous development of the air conditioning industry, air conditioners with ventilation and fresh air blowing functions have been introduced to the market. The fresh air device of the air conditioner can bring fresh outdoor air into the room, and the exhaust device of the air conditioner can filter the indoor stale air and discharge it to the outside, thus completing the replacement of indoor air with fresh air. After the outdoor fresh air and the indoor stale air exchange heat through a heat exchanger, the temperature of the fresh air entering the room can be closer to the indoor temperature. In the existing technology, the fresh air is filtered by a filter, but the filter has a certain attenuation effect on the ventilation volume while filtering the air, thus affecting the fresh air flow. The filter cannot be flexibly adjusted according to the fresh air quality, resulting in reduced fresh air flow, poor fresh air filtration effect and high filter consumption. Summary of the Invention

[0003] In view of this, the present invention provides a fresh air device and a fresh air air conditioner having the same, to solve the problems of existing fresh air devices being unable to flexibly adjust the state of the filter according to the quality of fresh air, resulting in reduced fresh air flow and poor fresh air filtration effect.

[0004] This invention provides a fresh air device, including a base and a filter module, wherein the base forms a fresh air duct; the filter module includes:

[0005] A filter housing is disposed inside the fresh air duct and has filter holes, the filter holes being connected to the fresh air duct.

[0006] A filter screen is disposed at the filter holes and includes a first end and a second end disposed opposite to each other along the extension direction of the filter screen; the first end and the second end are movable relative to each other and have an unfolding position and a collecting position along the direction of the relative movement;

[0007] When the first end and the second end are in the unfolded position, the filter screen is in the unfolded state and covers the filter hole, and the filter screen can filter the fresh air flowing through the filter hole;

[0008] When the first end and the second end are in the collection position, the filter screen is in the collection state and close to the hole wall of the filter hole, and the fresh air in the fresh air duct does not flow through the filter screen.

[0009] Further optionally, the filter shell includes a first shell wall, the first shell wall has a columnar structure and the cross-section of the first shell wall is arc-shaped, and the first shell wall has the filter holes formed thereon; the filter holes include a first hole wall and a second hole wall arranged opposite to each other along the circumference of the first shell wall, and both the first hole wall and the second hole wall extend along the axial direction of the first shell wall.

[0010] The filter module further includes a first connecting rod and a second connecting rod. The first connecting rod is disposed at the first hole wall and connected to the first end. The second connecting rod is rotatably disposed at the filter hole about the axis of the first shell wall and connected to the second end.

[0011] When the second link rotates away from the first link, the first end and the second end can be in the unfolded position; when the second link rotates towards the first link, the first end and the second end can be in the collected position.

[0012] Further optionally, the filter hole further includes a third hole wall and a fourth hole wall arranged opposite to each other along the axial direction of the first shell wall, the third hole wall and the fourth hole wall both extending circumferentially along the first shell wall, and the four hole walls surround the filter hole;

[0013] A first sliding structure is formed at both the third and fourth hole walls, and the first sliding structure extends circumferentially along the first shell wall; a second sliding structure is formed at both ends of the second connecting rod; the first sliding structure and the second sliding structure cooperate to allow the second connecting rod to rotate relative to the first shell wall.

[0014] Further optionally, the first sliding structure is an arc-shaped groove, which is coaxially arranged with the first shell wall; the second sliding structure is a slider, the structure of which is adapted to the structure of the arc-shaped groove.

[0015] Further optionally, the fresh air duct includes a first duct wall and a second duct wall disposed opposite to each other; the filter module further includes a transmission mechanism, the transmission mechanism including an active swing rod and a driven swing rod disposed opposite to each other along the axial direction of the first shell wall, and both the active swing rod and the driven swing rod extend radially along the first shell wall; one end of the active swing rod is connected to one end of the second connecting rod, and the other end of the active swing rod is rotatably disposed on the first duct wall; one end of the driven swing rod is connected to one end of the second connecting rod, and the other end of the driven swing rod is rotatably disposed on the second duct wall;

[0016] The rotation of the active and driven rocker arms can cause the second connecting rod to rotate relative to the first shell wall.

[0017] Optionally, the filter housing further includes a second shell wall disposed opposite to the first shell wall, the second shell wall being disposed away from the air inlet end of the fresh air duct, and the second shell wall having ventilation holes; the second shell wall has a columnar structure and the cross-section of the second shell wall is arc-shaped, the second shell wall and the first shell wall are coaxially disposed and connected to form a filter cavity, the filter cavity having a cylindrical structure; the axial direction of the filter cavity is perpendicular to the extension direction of the fresh air duct;

[0018] Both the filter hole and the ventilation hole are connected to the filter chamber and the fresh air duct. Fresh air in the fresh air duct enters the filter chamber through the filter hole and then enters the fresh air duct again through the ventilation hole.

[0019] Further optionally, the filter screen includes a plurality of filters, which are arranged at intervals along the radial direction of the first shell wall; at least two of the filters have different air handling functions or have the same air handling function but different handling levels.

[0020] The filter screen with the corresponding air handling capacity can be installed at the filter hole according to the fresh air quality of the fresh air duct.

[0021] Further optionally, the filter module includes four intermediate components; the first end includes a first connecting portion and a second connecting portion, and the second end includes a third connecting portion and a fourth connecting portion; an intermediate component is disposed at each connecting portion; each intermediate component is slidably disposed on the filter shell;

[0022] When the four intermediate components are spaced apart from each other around the filter hole and the filter screen is in the unfolded state, the first end and the second end are in the unfolded position.

[0023] When the four intermediate components are close to each other around the filter hole and the filter screen is in a collecting state, the first end and the second end are in the collecting position.

[0024] Alternatively, each of the intermediate components has a sliding portion, and the filter housing has an annular groove surrounding the filter hole; the sliding portion is embedded in the annular groove, allowing the four intermediate components to slide along the annular groove.

[0025] The present invention also provides a fresh air air conditioner, including an indoor unit body and a fresh air device as described in any of the above claims; the fresh air device is disposed on one side of the indoor unit body and further includes a heat exchange component; the filter module and the heat exchange component are sequentially disposed in the fresh air duct along the flow direction of the fresh air; the heat exchange component forms a first heat exchange duct and a second heat exchange duct that are arranged in an alternating manner.

[0026] Outdoor fresh air enters the fresh air duct and flows sequentially through the filter module and the first heat exchange duct, while indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct.

[0027] Compared with the prior art, the main advantages of the present invention are as follows:

[0028] (1) The filter shell is set inside the fresh air duct and has filter holes. The filter screen is set at the filter holes. When the fresh air flowing through the fresh air duct needs to be treated, the filter screen is unfolded and covered at the filter holes to filter the fresh air flowing through the filter holes, improve the filtration effect and ensure the quality of fresh air. When the fresh air flowing through the fresh air duct does not need to be treated, the filter screen is collected at the hole wall of the filter holes to reduce the attenuation effect of the filter screen on the fresh air flow and reduce the loss of fresh air flow.

[0029] (2) The first connecting rod is located at the first hole wall and connected to the first end, and the second connecting rod is rotatably located at the filter hole and connected to the second end; the second connecting rod rotates about the axis of the first shell wall away from the first connecting rod, so that the first connecting rod and the second connecting rod can be in the unfolded position; the second connecting rod rotates about the axis of the first shell wall towards the first connecting rod, so that the first connecting rod and the second connecting rod can be in the collection position; the structure is simple, and the filter screen unfolds and is collected in a timely manner; the second connecting rod is driven to rotate by the active swing rod and the driven swing rod, and the movement is stable;

[0030] (3) The filter screen includes multiple screens, each with different air handling functions or the same air handling function but different handling levels; the corresponding air handling capacity filter screen can be deployed according to the fresh air quality of the fresh air duct to achieve air filtration, sterilization and deodorization.

[0031] (4) When the filter module is applied to the fresh air conditioner, it monitors the quality of fresh air in the fresh air duct in real time and then dynamically adjusts the filter screen so that the filter screen is collected or unfolded. Different filters can be unfolded to achieve different air treatment functions and meet different air treatment needs. The filter screen is intelligently replaced so that the air treatment function and treatment level of the filter screen are matched with the fresh air quality, improving the air treatment accuracy, reducing the consumption of filter screens, and improving the utilization rate of filter screens. The fresh air device and the fresh air conditioner are linked for control, optimizing the control mode of the fresh air conditioner. Attached Figure Description

[0032] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0033] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0034] Figure 1a and Figure 1b A schematic diagram of the structure of an embodiment of the filter module (with a filter screen) provided by the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of an embodiment of the filter module (without filter screen) provided by the present invention;

[0036] Figure 3 This is a schematic diagram of the assembly structure of an embodiment of the fresh air device (with filter) provided by the present invention;

[0037] Figure 4a This is a schematic diagram of the assembly structure of an embodiment of the fresh air device (without filter) provided by the present invention;

[0038] Figure 4b This is an exploded structural diagram of an embodiment of the fresh air device (without filter) provided by the present invention;

[0039] In the picture:

[0040] 1-Filter module; 11-Filter housing; 111-First housing wall; 112-Second housing wall; 113-Filter hole; 1131-First hole wall; 1132-Second hole wall; 1133-Third hole wall; 1134-Fourth hole wall; 114-Ventilation hole; 12-Filter screen; 121-First end; 122-Second end; 13-Second connecting rod; 14-Mounting housing; 15-Intermediate component;

[0041] 2-Fresh air unit; 21-Mask; 22-Base; 221-Filter module mounting position; 222-Heat exchange component mounting position; 23-Heat exchange component; 241-Fresh air volute assembly; 242-Fresh air fan blade; 251-Dull air volute assembly; 252-Dull air fan blade; 26-Fan blade motor; 27-Fresh air electrical box. Detailed Implementation

[0042] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0044] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0045] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0046] In existing fresh air systems, fresh air is filtered through filters. However, while filtering the air, the filters also reduce the ventilation volume, thus affecting the fresh air flow. Furthermore, the filters cannot be flexibly adjusted according to the quality of the fresh air, resulting in reduced fresh air flow, poor filtration effect, and high filter consumption.

[0047] This invention creatively provides a fresh air device, including a base and a filter module. The base forms a fresh air duct. The filter module includes a filter shell and a filter screen. The filter shell is disposed in the fresh air duct and has filter holes, which are connected to the fresh air duct. The filter screen is disposed at the filter holes and includes a first end and a second end disposed opposite to each other along the extension direction of the filter screen. The first end and the second end are movable relative to each other and have an unfolding position and a collecting position along the direction of relative movement.

[0048] When the fresh air flowing through the fresh air duct needs to be treated, the first and second ends are in the unfolded position, the filter screen is unfolded and covers the filter holes, the filter screen can filter the fresh air flowing through the filter holes, improve the filtration effect and ensure the quality of fresh air; when the fresh air flowing through the fresh air duct does not need to be treated, the first and second ends are in the collection position, the filter screen is in the collection state and close to the hole wall of the filter holes, the fresh air in the fresh air duct does not flow through the filter screen, reducing the attenuation effect of the filter screen on the fresh air flow and reducing the loss of fresh air flow.

[0049] Example 1

[0050] <Fresh Air System>

[0051] like Figures 1a to 3 As shown, this embodiment provides a fresh air device 2, including a base 22 and a filter module 1. The base 22 forms a fresh air duct; the filter module 1 includes:

[0052] The filter housing 11 is disposed in the fresh air duct and has filter holes 113, which are connected to the fresh air duct.

[0053] A filter screen 12 is disposed at a filter hole 113 and includes a first end 121 and a second end 122 disposed opposite to each other along the extending direction of the filter screen 12; the first end 121 and the second end 122 are movable relative to each other, and the first end 121 and the second end 122 have an unfolding position and a collecting position along the direction of relative movement;

[0054] When the first end 121 and the second end 122 are in the unfolded position, the filter screen 12 is in the unfolded state and covers the filter hole 113, and the filter screen 12 can filter the fresh air flowing through the filter hole 113.

[0055] When the first end 121 and the second end 122 are in the collection position, the filter screen 12 is in the collection state and close to the hole wall of the filter hole 113, and the fresh air in the fresh air duct does not flow through the filter screen 12.

[0056] Furthermore, the filter shell 11 includes a first shell wall 111, which has a columnar structure and a circular arc cross-section. The first shell wall 111 has filter holes 113. The filter holes 113 include a first hole wall 1131 and a second hole wall 1132 arranged circumferentially opposite to each other along the first shell wall 111. Both the first hole wall 1131 and the second hole wall 1132 extend axially along the first shell wall 111.

[0057] The filter module 1 also includes a first connecting rod and a second connecting rod 13. The first connecting rod is disposed at the first hole wall 1131 and connected to the first end 121; the second connecting rod 13 is rotatably disposed at the filter hole 113 about the axis of the first shell wall 111 and connected to the second end 122.

[0058] When the second link 13 rotates away from the first link, the first end 121 and the second end 122 can be in the unfolded position; when the second link 13 rotates towards the first link, the first end 121 and the second end 122 can be in the collecting position; the structure is simple, and the filter screen 12 unfolds and collects in a timely manner.

[0059] To address the issue of unstable movement of the second connecting rod 13, this embodiment proposes that the filter hole 113 further includes a third hole wall 1133 and a fourth hole wall 1134 arranged opposite to each other along the axial direction of the first shell wall 111. The third hole wall 1133 and the fourth hole wall 1134 both extend circumferentially along the first shell wall 111, and the four hole walls surround the filter hole 113.

[0060] A first sliding structure is formed at both the third hole wall 1133 and the fourth hole wall 1134, and the first sliding structure extends circumferentially along the first shell wall 111; a second sliding structure is formed at both ends of the second connecting rod 13; the first sliding structure and the second sliding structure cooperate to allow the second connecting rod 13 to rotate relative to the first shell wall 111.

[0061] Furthermore, the first sliding structure is an arc-shaped groove, which is coaxially arranged with the first shell wall 111; the second sliding structure is a slider, the structure of which is adapted to the structure of the arc-shaped groove.

[0062] To address the issue of the complex transmission mechanism structure of the second link 13, this embodiment proposes that the fresh air duct includes a first duct wall and a second duct wall arranged opposite to each other, with the first and second duct walls arranged opposite to each other along the width direction of the fresh air duct; the filter module 1 also includes a drive motor and a transmission mechanism, the transmission mechanism including an active swing rod and a driven swing rod arranged opposite to each other along the axial direction of the first shell wall 111, and both the active and driven swing rods extending radially along the first shell wall 111; one end of the active swing rod is connected to one end of the second link 13, and the other end of the active swing rod is rotatably mounted on the first duct wall; the drive motor is mounted on the base 22, and the output shaft of the drive motor is drivenly connected to the other end of the active swing rod; one end of the driven swing rod is connected to one end of the second link 13, and the other end of the driven swing rod is rotatably mounted on the second duct wall;

[0063] The drive motor drives the active swing arm to swing, which in turn drives the driven swing arm to rotate the second connecting rod 13 relative to the first shell wall 111, thereby realizing the unfolding or collection of the filter screen 12.

[0064] To address the problem of incomplete filtration caused by air not being able to fully flow through the filter holes 113 in the fresh air duct, this embodiment proposes that the filter shell 11 further includes a second shell wall 112 disposed opposite to the first shell wall 111. The second shell wall 112 is disposed away from the air inlet end of the fresh air duct, and ventilation holes 114 are formed in the second shell wall 112. The second shell wall 112 has a cylindrical structure and an arc-shaped cross-section. The second shell wall 112 and the first shell wall 111 are coaxially disposed and connected to form a filter cavity, which has a cylindrical structure. The axial direction of the filter cavity is perpendicular to the extension direction of the fresh air duct.

[0065] Both the filter hole 113 and the ventilation hole 114 are connected to the filter chamber and the fresh air duct. The fresh air in the fresh air duct enters the filter chamber through the filter hole 113 and then enters the fresh air duct again through the ventilation hole 114.

[0066] Furthermore, the filter module 1 also includes a mounting shell 14, which is connected to the second shell wall 112 and includes two shells; the two mounting shells 14 are arranged circumferentially at intervals along the second shell wall 112, and the two mounting shells 14 are used to set the filter shell 11 on the side wall of the fresh air duct.

[0067] To address the issue that the limited functionality of the filter 12 leads to its narrow application range, this embodiment proposes that multiple filters 12 be included, with the multiple filters 12 arranged sequentially at intervals along the radial direction of the first shell wall 111; at least two of the multiple filters 12 have different air treatment functions or have the same air treatment function but different treatment levels.

[0068] The filter 12 with the corresponding air handling capacity can be installed at the filter hole 113 according to the fresh air quality of the fresh air duct.

[0069] Preferably, each filter 12 has different air handling functions or has the same air handling function but different handling levels; these air handling functions include filtration, sterilization, formaldehyde removal and deodorization, etc.; when each filter 12 has a filtration function, each filter 12 has different filtration levels, which can filter fresh air containing different particulate matter, thereby improving filtration accuracy and reducing the number of times users need to manually replace the filter 12.

[0070] When multiple filters 12 have filtration functions, the corresponding filter 12 can be unfolded and placed over the filter hole 113 according to the particulate matter content in the fresh air, so as to filter in stages and reduce the consumption of filter 12.

[0071] <Fresh Air Conditioner>

[0072] like Figure 4a and Figure 4bAs shown, this embodiment also provides a fresh air air conditioner, including the fresh air device 2 described in any of the above claims; the fresh air device 2 further includes a heat exchange component 23, a fresh air volute assembly 241, a fresh air fan blade 242, a turbid air volute assembly 251, a turbid air fan blade 252, and a fan motor 26. The base 22 includes a base body, and the base body forms a fresh air duct. The fresh air duct has a filter module mounting position 221 and a heat exchange component mounting position 222 sequentially formed along the fresh air flow direction; the filter module 1 is disposed at the filter module mounting position 221, and the heat exchange component 23 is disposed at the heat exchange component mounting position 222; the heat exchange component 23 forms an alternating first heat exchange duct and a second heat exchange duct.

[0073] At the bottom of the base body, a fresh air volute assembly 241 and a stale air volute assembly 251 are arranged side by side. The fresh air volute assembly 241 includes a fresh air volute and a fresh air volute cover, which are fastened together to form a fresh air cavity. The fresh air cavity has a fresh air cavity inlet and a fresh air cavity outlet. The air inlet of the fresh air duct is connected to the outside through a fresh air pipe, and the air outlet of the fresh air duct is connected to the first heat exchange duct. The fresh air cavity inlet is connected to the first heat exchange duct, and the fresh air cavity outlet is connected to the indoor environment. The stale air volute assembly 251... 1 includes a turbid air volute and a turbid air volute cover, which are fastened together to form a turbid air cavity, which has a turbid air cavity inlet and a turbid air cavity outlet; the air inlet of the second heat exchange air duct is connected to the room, and the air outlet of the second heat exchange air duct is connected to the turbid air cavity inlet; the turbid air cavity outlet is connected to the outside through an exhaust pipe; a fresh air fan blade 242 is installed in the fresh air cavity, a turbid air fan blade 252 is installed in the turbid air cavity, and a fan blade motor 26 is installed between the fresh air volute assembly 241 and the turbid air volute assembly 251;

[0074] Outdoor fresh air enters the fresh air duct through the fresh air duct and flows through the filter screen 12 and the first heat exchange duct in sequence, and then enters the fresh air chamber and is discharged into the room; when flowing through the filter screen 12, the fresh air is treated; indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct, and then enters the stale air chamber and is discharged to the outside through the exhaust duct.

[0075] The fresh air unit 2 also includes a detection element and a fresh air electrical box 27. The detection element is used to detect the quality of fresh air. The fresh air electrical box 27 contains a fresh air control board, which is electrically connected to the detection element, the fan motor 26, and the drive motor. The detection element detects the quality of fresh air and transmits the detection data to the fresh air control board. The fresh air control board controls the drive motor to operate according to the fresh air quality, thereby causing the filter 12 to unfold or collect. The fresh air control board controls the fan motor 26 to operate, causing the fresh air fan blade 242 and the stale air fan blade 252 to rotate, thereby introducing outdoor fresh air into the room and exhausting indoor stale air to the outside. Different filters 12 can be deployed to achieve different air treatment functions to meet different air treatment needs; intelligent filter replacement ensures that the air treatment function and treatment level of the filter 12 are adapted to the fresh air quality, improving air treatment accuracy, reducing filter consumption, and increasing the utilization rate of the filter 12; the fresh air unit and the fresh air air conditioner are linked for control, optimizing the control method of the fresh air air conditioner; according to regional and seasonal changes, different air treatments can be performed to improve the quality of outdoor fresh air introduced into the room, enhance the fresh air function effect, improve comfort, and meet different user needs.

[0076] The fresh air device 2 also includes a mask 21, a base 22, a fresh air volute assembly 241, a fresh air fan blade 242, a turbid air volute assembly 251, a turbid air fan blade 252, and a fan motor 26, all of which are installed inside the mask 21.

[0077] Example 2

[0078] Unlike Embodiment 1, the filter module includes four intermediate parts 15; the first end includes a first connecting part and a second connecting part, and the second end includes a third connecting part and a fourth connecting part; an intermediate part 15 is provided at each connecting part; each intermediate part 15 is slidably disposed on the filter shell 11.

[0079] When the four intermediate components 15 are far apart from each other around the filter hole 113 and the filter screen 12 is in the unfolded state, the first end and the second end are in the unfolded position; when the four intermediate components 15 are close to each other around the filter hole 113 and the filter screen 12 is in the collected state, the first end and the second end are in the collected position.

[0080] Furthermore, each intermediate component 15 is provided with a sliding portion, and the filter shell 11 is provided with an annular groove surrounding the filter hole 113; the sliding portion is embedded in the annular groove so that the four intermediate components 15 can slide along the annular groove.

[0081] Specifically, a magnetic mechanism is provided between the intermediate component 15 and the filter shell 11. The magnetic mechanism includes a permanent magnet and multiple electromagnets. Each intermediate component 15 is provided with a permanent magnet, and the multiple electromagnets are arranged in sequence around the annular groove. When the multiple electromagnets are energized in sequence, they can drive the permanent magnet to slide along the annular groove, thereby driving the four intermediate components 15 to slide along the annular groove, so that the filter screen can be unfolded or collected.

[0082] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A fresh air device, characterized in that, The fresh air device includes a base and a filter module, wherein the base forms a fresh air duct; the filter module includes: A filter housing is disposed within the fresh air duct; the filter housing includes a first shell wall, which is a columnar structure and has filter holes formed therein, the filter holes being connected to the fresh air duct; the filter holes include a first hole wall and a second hole wall arranged circumferentially opposite to each other along the first shell wall. A filter screen is disposed at the filter holes and includes a first end and a second end disposed opposite to each other along the extension direction of the filter screen; the first end and the second end are movable relative to each other and have an unfolding position and a collecting position along the direction of the relative movement; A first connecting rod and a second connecting rod, wherein the first connecting rod is disposed at the first hole wall and connected to the first end; the second connecting rod is rotatably disposed at the filter hole about the axis of the first shell wall and connected to the second end; When the second link rotates away from the first link, and the first end and the second end are in the unfolded position, the filter screen is in the unfolded state and covers the filter hole, and the filter screen can filter the fresh air flowing through the filter hole; When the second link rotates toward the first link, and the first end and the second end are in the collection position, the filter screen is in the collection state and close to the hole wall of the filter hole, and the fresh air in the fresh air duct does not flow through the filter screen.

2. The fresh air device according to claim 1, characterized in that, The cross-section of the first shell wall is arc-shaped, and both the first hole wall and the second hole wall extend along the axial direction of the first shell wall.

3. The fresh air device according to claim 2, characterized in that, The filter hole also includes a third hole wall and a fourth hole wall arranged opposite each other along the axial direction of the first shell wall. The third hole wall and the fourth hole wall both extend circumferentially along the first shell wall, and the four hole walls surround the filter hole. A first sliding structure is formed at both the third and fourth hole walls, and the first sliding structure extends circumferentially along the first shell wall; a second sliding structure is formed at both ends of the second connecting rod; the first sliding structure and the second sliding structure cooperate to allow the second connecting rod to rotate relative to the first shell wall.

4. The fresh air device according to claim 3, characterized in that, The first sliding structure is an arc-shaped groove, which is coaxially arranged with the first shell wall; the second sliding structure is a slider, the structure of which is adapted to the structure of the arc-shaped groove.

5. The fresh air device according to claim 3, characterized in that, The fresh air duct includes a first duct wall and a second duct wall arranged opposite to each other; the filter module further includes a transmission mechanism, which includes an active swing rod and a driven swing rod arranged opposite to each other along the axial direction of the first shell wall, and both the active swing rod and the driven swing rod extend radially along the first shell wall; one end of the active swing rod is connected to one end of the second connecting rod, and the other end of the active swing rod is rotatably mounted on the first duct wall; one end of the driven swing rod is connected to one end of the second connecting rod, and the other end of the driven swing rod is rotatably mounted on the second duct wall; The rotation of the active and driven rocker arms can cause the second connecting rod to rotate relative to the first shell wall.

6. The fresh air device according to claim 2, characterized in that, The filter housing also includes a second shell wall disposed opposite to the first shell wall. The second shell wall is disposed away from the air inlet end of the fresh air duct, and the second shell wall has ventilation holes. The second shell wall has a columnar structure and the cross-section of the second shell wall is arc-shaped. The second shell wall and the first shell wall are coaxially disposed and connected to form a filter cavity. The filter cavity has a cylindrical structure. The axial direction of the filter cavity is perpendicular to the extension direction of the fresh air duct. Both the filter hole and the ventilation hole are connected to the filter chamber and the fresh air duct. Fresh air in the fresh air duct enters the filter chamber through the filter hole and then enters the fresh air duct again through the ventilation hole.

7. The fresh air device according to claim 2, characterized in that, The filter screen includes multiple filters, which are arranged at intervals along the radial direction of the first shell wall; at least two of the multiple filters have different air handling functions or have the same air handling function but different handling levels. The filter screen with the corresponding air handling capacity can be installed at the filter hole according to the fresh air quality of the fresh air duct.

8. The fresh air device according to claim 1, characterized in that, The filter module includes four intermediate components; the first end includes a first connecting part and a second connecting part, and the second end includes a third connecting part and a fourth connecting part; an intermediate component is provided at each connecting part; each intermediate component is slidably disposed on the filter shell; When the four intermediate components are spaced apart from each other around the filter hole and the filter screen is in the unfolded state, the first end and the second end are in the unfolded position. When the four intermediate components are close to each other around the filter hole and the filter screen is in a collecting state, the first end and the second end are in the collecting position.

9. The fresh air device according to claim 8, characterized in that, Each of the intermediate components has a sliding portion, and the filter housing has an annular groove surrounding the filter hole; the sliding portion is embedded in the annular groove, allowing the four intermediate components to slide along the annular groove.

10. A fresh air conditioning system, characterized in that, The fresh air conditioner includes an indoor unit body and a fresh air device as described in any one of claims 1-9; the fresh air device is disposed on one side of the indoor unit body and also includes a heat exchange component; the filter module and the heat exchange component are sequentially disposed in the fresh air duct along the flow direction of the fresh air; the heat exchange component forms a first heat exchange duct and a second heat exchange duct that are arranged in an alternating manner. Outdoor fresh air enters the fresh air duct and flows sequentially through the filter module and the first heat exchange duct, while indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct.

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