Panel assembly for fresh air ventilator and fresh air ventilator

Abstract

The utility model relates to the technical field of air conditioning, and discloses a panel assembly for a fresh air ventilator and the fresh air ventilator. The panel assembly comprises a panel which defines an air outlet cavity and is provided with a first air inlet and outlet port and a second air inlet and outlet port which are communicated with the air cavity; the decorative plate is arranged on the panel and movably connected with the panel, and the decorative plate does linear reciprocating motion relative to the panel in the direction close to or away from the first air inlet and outlet so as to move between the closing position for covering the first air inlet and outlet and the opening position for opening the first air inlet and outlet relative to the panel. When the decorative plate is in the open position, gaps exist between all positions of the edge of the decorative plate and the first air inlet and outlet, so that the first air inlet and outlet can discharge air to the periphery through the gaps, and direct blowing of cold air is avoided.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to a panel assembly for a fresh air system and a fresh air system. Background Technology

[0002] A fresh air system is an effective air purification device that circulates indoor air, expelling stale indoor air and bringing in fresh outdoor air, ensuring a constantly fresh and clean indoor environment. The front panel of the fresh air system has a decorative panel with an air outlet gap between it and the main panel. This air outlet gap is normally open, allowing dust, cold or hot outdoor air to enter the room even when the system is off.

[0003] Therefore, the related technology provides a wall-mounted single-unit fresh air unit, including a fixed base and a movable panel. The movable panel is rotatably connected to the fixed base through a rotating shaft arm to realize the opening and closing of the movable panel.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] Because the upper part of the movable panel is rotatably connected to the fixed base via a rotating shaft arm, the fresh air unit cannot achieve the same airflow effect as the fixed base when the movable panel is opened.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a panel assembly and a fresh air unit for a fresh air system, to solve the problem in the related art that the air outlet effect of the fixed base cannot be achieved.

[0009] According to a first aspect of the present invention, a panel assembly is provided, comprising: a panel defining an air outlet cavity and having a first air inlet / outlet and a second air inlet / outlet communicating with the air outlet cavity; and a decorative panel disposed on the panel and movably connected to the panel, the decorative panel reciprocating linearly relative to the panel in a direction approaching or away from the first air inlet / outlet, so as to move relative to the panel between a closed position covering the first air inlet / outlet and an open position opening the first air inlet / outlet.

[0010] Optionally, the panel assembly further includes: a gear rotatably disposed on the panel; a rack fixedly disposed on the decorative panel and meshing with the gear; the rotation of the gear drives the rack to move, thereby causing the decorative panel to move relative to the panel between a closed position and an open position.

[0011] Optionally, the decorative panel has a mounting groove that extends from the closed position to the open position, and the gear is confined within the mounting groove and is movable relative to the mounting groove along the extension direction of the mounting groove.

[0012] Optionally, the panel assembly also includes a telescopic rod, one end of which is disposed on the panel and the other end of which is disposed on the decorative panel, and is capable of telescopic extension and retraction along the line connecting the closed position and the open position.

[0013] Optionally, the panel assembly further includes: a support rod disposed between the panel and the decorative panel, the support rod having a first connecting portion, and the panel or decorative panel having a second connecting portion; the number of first connecting portions is multiple and the multiple first connecting portions extend along the length direction of the support rod, any one of the multiple first connecting portions can cooperate with the second connecting portion to allow the decorative panel to move relative to the panel between a closed position and an open position; or the number of second connecting portions is multiple and the multiple second connecting portions extend along the length direction of the support rod, any one of the multiple second connecting portions can cooperate with the first connecting portion to allow the decorative panel to move relative to the panel between a closed position and an open position.

[0014] Optionally, the panel is provided with a guide portion, and the decorative panel is provided with a guide mating portion, the guide portion and the guide mating portion cooperating to guide the decorative panel to move relative to the panel between a closed position and an open position.

[0015] Optionally, the panel assembly further includes an operating element, exposed on the panel or decorative panel and driven to move the decorative panel relative to the panel between a closed position and an open position.

[0016] Optionally, the operating element is supported by protrusions between itself and the panel or decorative panel on which it is located.

[0017] Optionally, the panel assembly further includes a drive unit connected to the decorative panel drive for moving the decorative panel relative to the panel between a closed position and an open position.

[0018] According to a second aspect of the present invention, a fresh air ventilator is provided, comprising: a panel assembly for the fresh air ventilator as described in any of the above embodiments; a fresh air ventilator; an outer pipe disposed at a second air inlet / outlet, wherein one end of the outer pipe is connected to the second air inlet / outlet and the other end of the outer pipe is connected to the outside.

[0019] The panel assembly and fresh air unit for a fresh air system provided in this disclosure can achieve the following technical effects:

[0020] When the decorative panel moves to the closed position relative to the panel, the first air inlet and outlet close to prevent dust and outdoor air from entering the room through the first air inlet and outlet.

[0021] The decorative panel reciprocates in a straight line relative to the panel along the direction of approaching or moving away from the first air inlet / outlet, moving between a closed position covering the first air inlet / outlet and an open position opening the first air inlet / outlet relative to the panel. Thus, when the decorative panel is in the open position, there are gaps between the edges of the decorative panel and the first air inlet / outlet, allowing the first air inlet / outlet to discharge air in all directions through these gaps, preventing cold air from blowing directly on it.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a fresh air unit provided in an embodiment of this disclosure;

[0025] Figure 2 This is a schematic diagram of another fresh air unit provided in an embodiment of this disclosure;

[0026] Figure 3 yes Figure 2 Sectional view along the middle AA direction;

[0027] Figure 4 yes Figure 3 Enlarged structural diagram of section B in the middle;

[0028] Figure 5 This is a schematic diagram of the structure of a decorative panel provided in an embodiment of this disclosure;

[0029] Figure 6 This is a schematic diagram of the structure of a fresh air unit after the front panel has been removed, according to an embodiment of this disclosure;

[0030] Figure 7 yes Figure 6 Enlarged structural diagram of section C.

[0031] Figure label:

[0032] 100: Fresh air system;

[0033] 10: Panel; 101: Front panel; 102: Rear panel; 103: Air cavity; 104: First air inlet / outlet; 105: Second air inlet / outlet; 106: Guide groove; 107: Gear; 108: Insertion hole; 109: Protrusion; 110: Mounting hole; 111: Operating component; 112: Drive device; 113: Clearance;

[0034] 20: Decorative panel; 201: Connecting rod; 202: Mounting groove; 203: First groove wall; 204: Second groove wall; 205: Rack;

[0035] 30: External management. Detailed Implementation

[0036] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0037] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0038] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0039] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0040] Unless otherwise stated, the term "multiple" means two or more.

[0041] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0042] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0044] Combination Figure 1-7 As shown, this disclosure provides a panel 10 assembly for a fresh air unit 100, including a panel 10 and a decorative panel 20.

[0045] Panel 10 defines an air cavity 103 and has a first air inlet / outlet 104 and a second air inlet / outlet 105 communicating with the air cavity 103; decorative panel 20 is disposed on panel 10 and movably connected to panel 10, and decorative panel 20 reciprocates linearly relative to panel 10 in a direction approaching or away from the first air inlet / outlet 104, so as to move relative to panel 10 between a closed position covering the first air inlet / outlet 104 and an open position opening the first air inlet / outlet 104. Figures 1 to 7 In the center, all decorative panels are in the open position.

[0046] When the decorative panel 20 moves to the closed position relative to the panel 10, the first air inlet / outlet 104 closes to prevent dust and outdoor air from entering the room through the first air inlet / outlet 104.

[0047] The decorative panel 20 reciprocates in a straight line relative to the panel 10 in a direction that approaches or moves away from the first air inlet / outlet 104, moving between a closed position covering the first air inlet / outlet 104 and an open position with the first air inlet / outlet 104 open. Thus, when the decorative panel 20 is in the open position, there is a gap 113 between each edge of the decorative panel 20 and the first air inlet / outlet 104, allowing the first air inlet / outlet 104 to vent air outwards through the gaps 113, preventing cold air from blowing directly on it.

[0048] For example, decorative panel 20 is located on the front side of panel 10, first air inlet / outlet 104 is located on the front surface of panel 10, and second air inlet / outlet 105 is located on the rear surface of panel 10. The fresh air unit 100 also includes an external duct 30, which is located at the second air inlet / outlet 105, with one end of the external duct 30 connected to the second air inlet / outlet 105 and the other end connected to the outside. Figure 2 In the middle, the right side is the front side, and the left side is the back side.

[0049] When the decorative panel 20 is in the open position, outdoor air enters the room through the outer pipe 30, the second air inlet / outlet 105, the air cavity 103, and the first air inlet / outlet 104, or indoor air is discharged to the outside through the first air inlet / outlet 104, the air cavity 103, the second air inlet / outlet 105, and the outer pipe 30.

[0050] Decorative panel 20 along the front and back direction (e.g.) Figure 2 (In the left and right direction) it moves relative to the panel 10. When the decorative panel 20 is in the open position, there is a gap 113 between each of the circumferential edges of the decorative panel 20 and the first air inlet / outlet 104, and the gaps 113 between each of the circumferential edges of the decorative panel 20 and the first air inlet / outlet 104 are all equal, so that the first air inlet / outlet 104 can evenly exhaust air to all directions through the gaps 113, avoiding direct blowing of cold air.

[0051] Optionally, such as Figures 3 to 7 As shown, the panel 10 assembly also includes a gear 107 and a rack 205.

[0052] Gear 107 is rotatably mounted on panel 10; rack 205 is fixedly mounted on decorative panel 20 and meshes with gear 107; gear 107 rotates, driving rack 205 to move, thereby driving decorative panel 20 to move relative to panel 10 between closed and open positions.

[0053] The rack 205 extends in the direction from the closed position to the open position. The gear 107 rotates, causing the rack 205 to move in the direction of its extension. The rack 205 causes the decorative panel 20 to move relative to the panel 10 in the direction of its extension, thereby enabling the decorative panel 20 to move between the closed position and the open position relative to the panel 10.

[0054] Optionally, such as Figure 5 As shown, the decorative panel 20 is provided with a mounting groove 202, which extends in the direction from the closed position to the open position. The gear 107 is confined within the mounting groove 202 and can move relative to the mounting groove 202 in the extending direction of the mounting groove 202.

[0055] A connecting rod 201 is provided on the surface of the decorative panel 20 facing the first air inlet / outlet 104. The connecting rod 201 extends from the closed position to the open position and has a mounting groove 202 that extends along the length of the connecting rod 201. The groove wall of the mounting groove 202 includes a first groove wall 203 and a second groove wall 204, which are arranged opposite to each other and both extend along the extension direction of the connecting rod. A rack 205 is provided on the inner wall surface of the first groove wall 203, and a gear 107 is located between the rack 205 and the second groove wall 204.

[0056] The gear 107 can rotate within the mounting groove 202 and can also move relative to the mounting groove 202 along its length. Thus, the mounting groove 202 serves two purposes: firstly, it limits the movement of the gear 107 along the line connecting the first groove wall 203 and the second groove wall 204; secondly, the mounting groove 202 does not hinder the gear 107 from driving the rack 205 to move.

[0057] Optionally, such as Figure 1 As shown, the panel 10 assembly also includes a drive device 112, which is drivenly connected to the decorative panel 20 and is used to drive the decorative panel 20 to move relative to the panel 10 between a closed position and an open position.

[0058] The rotation of gear 107 can be achieved by drive device 112, which can be a drive motor. The drive motor drives gear 107 to rotate, thereby automatically adjusting the position of decorative panel 20 relative to panel 10.

[0059] The controller of the fresh air unit 100 is connected to the drive unit 112 and is used to control the operation of the drive unit 112.

[0060] For example, the controller receives a user's instruction and controls the drive device 112 to open according to the user's instruction, so as to move the decorative panel 20 relative to the panel 10 to the target position, wherein the target position can be a closed position or an open position.

[0061] Optionally, such as Figure 2 As shown, the panel 10 assembly also includes an operating member 111, which is exposed on the panel 10 or the decorative panel 20 and is driven to the decorative panel 20 to move the decorative panel 20 relative to the panel 10 between a closed position and an open position.

[0062] The rotation of gear 107 can also be achieved by operating component 111. Operating component 111 is exposed on panel 10 or decorative panel 20 and is driven and connected to gear 107, for example, fixedly connected to gear 107. Rotating operating component 111 drives gear 107 to rotate, thereby moving decorative panel 200 relative to panel 10 between closed and open positions via rack 205, thus realizing manual adjustment of the position of decorative panel 20 relative to panel 10.

[0063] Optionally, such as Figure 4 As shown, a protrusion 109 is provided between the operating component 111 and the panel 10 or decorative panel 20 on which the operating component 111 is located.

[0064] When the operating member 111 is located on the panel 10, the panel 10 is provided with a mounting hole 110. The operating member 111 connects the mounting hole 110 with the gear 107. A protrusion 109 is provided between the operating member 111 and the panel 10. The protrusion 109 is located on the surface of the panel 10 facing the operating member 111 to prevent the operating member 111 from scratching the panel 10 during rotation.

[0065] When the operating member 111 is located on the decorative panel 20, the decorative panel 20 is provided with a mounting hole 110. The operating member 111 connects the mounting hole 110 with the gear 107. A protrusion 109 is provided between the operating member 111 and the decorative panel 20. The protrusion 109 is located on the surface of the decorative panel 20 facing the operating member 111 to prevent the operating member 111 from scratching the decorative panel 20 during rotation.

[0066] Optionally, the panel 10 is provided with a guide portion, and the decorative panel 20 is provided with a guide mating portion. The guide portion and the guide mating portion cooperate to guide the decorative panel 20 to move relative to the panel 10 between a closed position and an open position.

[0067] The guide portion and the guide mating portion are adapted to guide the decorative panel 20 to reciprocate between the closed position and the open position relative to the panel 10, and to prevent the decorative panel 20 from tilting during the movement relative to the panel 10.

[0068] One of the guide part and the guide mating part is a guide rail, and the other is a guide groove 106. The guide rail is located in the guide groove 106 and can move along the length direction of the guide groove 106. The length direction of the guide groove 106 is the line direction connecting the closed position and the open position.

[0069] like Figure 4As shown, taking the movement of the decorative panel 20 between the open and closed positions via the engagement of gear 107 and rack 205 as an example, the guide engagement part includes a connecting rod 201, and the guide part includes a guide groove 106. The panel 10 includes a front panel 101 and a rear panel 102, with the decorative panel 20, front panel 101, and rear panel 102 arranged sequentially. The front panel 101 and the rear panel 102 are joined together to form an air outlet cavity 103. The front panel 101 is provided with an insertion hole 108, through which the connecting rod 201 is inserted between the front panel 101 and the rear panel 102. The rear panel 102 is provided with a guide groove 106.

[0070] Optionally, the panel 10 assembly also includes a telescopic rod, one end of which is disposed on the panel 10 and the other end on the decorative panel 20, and is capable of telescopic extension and retraction along the line connecting the closed position and the open position.

[0071] The length of the telescopic rod is adjusted by extending and retracting it, thereby driving the decorative panel 20 to move and change the distance between the decorative panel 20 and the panel 10, so that the decorative panel 20 moves between the closed position and the open position relative to the panel 10.

[0072] The panel 10 assembly includes an electromagnetic actuator or an electric actuator, which includes a telescopic rod.

[0073] The panel 10 assembly may also include an operating element 111, which is driven to extend or retract the telescopic rod. The user holds the operating element 111 to extend or retract the telescopic rod.

[0074] Optionally, the panel 10 assembly also includes a support rod, which is disposed between the panel 10 and the decorative panel 20. The support rod has a first connecting part, and the panel 10 or the decorative panel 20 has a second connecting part.

[0075] When the support rod is provided on the panel 10, the support rod is fixedly connected to the panel 10. There are multiple first connecting parts, and the multiple first connecting parts extend along the length direction of the support rod. The second connecting part is provided on the decorative panel 20, and there is no less than one second connecting part. Any one of the multiple first connecting parts can cooperate with a second connecting part so that the decorative panel 20 can move relative to the panel 10 between a closed position and an open position.

[0076] The support rod extends along the line connecting the closed and open positions. Multiple first connecting parts extend along the length of the support rod. By selecting different positions of the first connecting parts among the multiple first connecting parts to cooperate with the second connecting parts, the length of the support rod between the panel 10 and the decorative panel 20 can be changed, thereby adjusting the position of the decorative panel 20.

[0077] When the support rod is provided on the panel 10, the support rod is fixedly connected to the panel 10. The second connecting part is provided on the decorative panel 20. There are multiple second connecting parts, and the multiple second connecting parts extend along the length direction of the support rod. There is no less than one first connecting part. Any one of the multiple second connecting parts can cooperate with the first connecting part so that the decorative panel 20 can move relative to the panel 10 between the closed position and the open position.

[0078] The support rod extends along the line connecting the closed and open positions. Multiple second connecting parts extend along the length of the support rod. By selecting different positions of the second connecting parts to mate with the first connecting part, the length of the support rod between the panel 10 and the decorative panel 20 can be changed, thereby adjusting the position of the decorative panel 20.

[0079] When the support rod is provided on the decorative panel 20, the support rod is fixedly connected to the decorative panel 20. There are multiple first connecting parts, and the multiple first connecting parts extend along the length direction of the support rod. The second connecting part is provided on the panel 10, and there is no less than one second connecting part. Any one of the multiple first connecting parts can cooperate with a second connecting part so that the decorative panel 20 can move relative to the panel 10 between a closed position and an open position.

[0080] The support rod extends along the line connecting the closed and open positions. Multiple first connecting parts extend along the length of the support rod. By selecting different positions of the first connecting parts among the multiple first connecting parts to cooperate with the second connecting parts, the length of the support rod between the panel 10 and the decorative panel 20 can be changed, thereby adjusting the position of the decorative panel 20.

[0081] When the support rod is provided on the decorative panel 20, the support rod is fixedly connected to the decorative panel 20. The second connecting part is provided on the panel 10. There are multiple second connecting parts, and the multiple second connecting parts extend along the length direction of the support rod. There is no less than one first connecting part. Any one of the multiple second connecting parts can cooperate with the first connecting part so that the decorative panel 20 can move relative to the panel 10 between the closed position and the open position.

[0082] The support rod extends along the line connecting the closed and open positions. Multiple second connecting parts extend along the length of the support rod. By selecting different positions of the second connecting parts to mate with the first connecting part, the length of the support rod between the panel 10 and the decorative panel 20 can be changed, thereby adjusting the position of the decorative panel 20.

[0083] One of the first connecting part and the second connecting part is a first buckle, and the other is a first slot, with the first buckle engaging with the first slot. Alternatively, the first connecting part and the second connecting part are connected by screws.

[0084] A second aspect of this utility model provides a fresh air ventilator 100, comprising: a panel 10 assembly as described in any of the above embodiments and an outer tube 30.

[0085] The outer pipe 30 is located at the second air inlet / outlet 105, with one end of the outer pipe 30 connected to the second air inlet / outlet 105 and the other end of the outer pipe 30 connected to the outside.

[0086] The fresh air unit 100 provided in the second aspect of this utility model includes the panel 10 assembly as described in any of the above embodiments, and therefore has all the beneficial effects of the panel 10 assembly as described in any of the above embodiments, which will not be repeated here.

[0087] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A panel assembly for a fresh air system, characterized in that, include: The panel defines the air outlet cavity and is provided with a first air inlet and a second air inlet and an air outlet that are connected to the air outlet cavity; The decorative panel is disposed on the panel and movably connected to the panel. The decorative panel reciprocates in a straight line relative to the panel in a direction that is close to or away from the first air inlet / outlet, so as to move between the closed position covering the first air inlet / outlet and the open position opening the first air inlet / outlet relative to the panel.

2. The panel assembly for a fresh air system according to claim 1, characterized in that, Also includes: Gears are rotatably mounted on the panel; The rack is fixed to the decorative panel and meshes with the gear; The gears rotate, driving the rack to move, which in turn moves the decorative panel relative to the panel between the closed and open positions.

3. The panel assembly for a fresh air system according to claim 2, characterized in that, The decorative panel has a mounting groove that extends from the closed position to the open position. The gear is confined within the mounting groove and can move relative to the mounting groove along the extension direction of the mounting groove.

4. The panel assembly for a fresh air system according to claim 1, characterized in that, Also includes: The telescopic rod has one end attached to the panel and the other end attached to the decorative panel, and can extend and retract along the line connecting the closed and open positions.

5. The panel assembly for a fresh air system according to claim 1, characterized in that, Also includes: A support rod is provided between the panel and the decorative panel, and the support rod is provided with a first connecting part, while the panel or decorative panel is provided with a second connecting part; There are multiple first connecting parts, and these multiple first connecting parts extend along the length of the support rod. Any one of the multiple first connecting parts can cooperate with a second connecting part to allow the decorative panel to move relative to the panel between a closed position and an open position; or The number of second connecting parts is multiple and the multiple second connecting parts extend along the length direction of the support rod. Any one of the multiple second connecting parts can cooperate with the first connecting part so that the decorative panel can move relative to the panel between a closed position and an open position.

6. The panel assembly for a fresh air system according to claim 1, characterized in that, The panel is provided with a guide part, and the decorative panel is provided with a guide mating part. The guide part and the guide mating part cooperate to guide the decorative panel to move relative to the panel between the closed position and the open position.

7. The panel assembly for a fresh air system according to any one of claims 1 to 6, characterized in that, Also includes: An operating component, exposed on the panel or decorative panel, and driven by the decorative panel, moves the decorative panel relative to the panel between a closed position and an open position.

8. The panel assembly for a fresh air system according to claim 7, characterized in that, There are protrusions supporting the control element and the panel or decorative panel on which the control element is located.

9. The panel assembly for a fresh air system according to any one of claims 1 to 6, characterized in that, Also includes: The drive unit, connected to the decorative panel drive, is used to move the decorative panel relative to the panel between a closed position and an open position. The drive unit is configured to be connected to the controller of the fresh air unit, which controls the operation of the drive unit.

10. A fresh air ventilator, characterized in that, include: A panel assembly for a fresh air system as described in any one of claims 1 to 9; An external duct is installed at the second air inlet / outlet, with one end of the external duct connected to the second air inlet / outlet and the other end connected to the outside.

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