Panel assembly of fresh air machine, Fresh air machine

Abstract

The application relates to the air conditioning technical field, and discloses a panel assembly of a fresh air machine and the fresh air machine. The panel assembly comprises an air outlet surface frame, which defines an air outlet channel and is provided with a first air outlet and a first communication hole in communication with the air outlet channel; a damper, which is arranged in the air outlet channel and is provided with a first through hole, the first air outlet and the first communication hole being in communication through the first through hole; and a support, which is arranged corresponding to the damper and is provided with a second through hole, the damper being capable of moving relative to the support between a ventilation state and a closed state; wherein in the ventilation state, the first through hole corresponds to the second through hole, so that the air outlet channel is conducted; and in the closed state, the first through hole is staggered with the second through hole, so that the air outlet channel is closed. The damper and the support are arranged to realize the conduction and disconnection of the air outlet channel, a wax motor is not needed, and the cost is reduced.

Description

Technical Field

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

[0002] Fresh air systems, as a common type of ventilation equipment, are widely used in building ventilation systems, air conditioning systems, and air purification equipment. They are mainly used to introduce fresh air, expel stale indoor air, or regulate the indoor air environment.

[0003] A single-hole heat exchanger is disclosed in related technology. The main unit includes a grille mounting component that can drive the grille to open and close, a wax motor that can drive the grille mounting component to move, and a spring that can push the grille mounting component to reset. When the main unit is powered on, the wax motor inside the main unit runs, slowly lifting the grille mounting component and moving it vertically upward, thereby opening the grille. When the main unit is powered off, the wax motor inside the main unit resets and runs, and the upper spring, without the action of the wax motor, slowly returns to its original position, slowly pressing the grille mounting component downward, thus closing the grille.

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

[0005] Among related technologies, the drive method of wax motor is costly.

[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 for a fresh air system and a fresh air system to solve the problem of high cost of wax motor drive methods in related technologies.

[0009] According to a first aspect of the present invention, a panel assembly for a fresh air unit is provided, comprising: an air outlet frame defining an air outlet duct and having a first air outlet and a first connecting hole communicating with the air outlet duct; an air damper disposed within the air outlet duct and having a first through hole, wherein the first air outlet and the first connecting hole are connected through the first through hole; and a bracket corresponding to the air damper and having a second through hole, wherein the air damper is movable relative to the bracket between a ventilated state and a closed state; wherein, in the ventilated state, the first through hole and the second through hole correspond to each other to allow the air outlet duct to be open; and in the closed state, the first through hole and the second through hole are offset to allow the air outlet duct to be closed.

[0010] Optionally, the damper can rotate relative to the bracket between a ventilated state and a closed state, and a rotating shaft connects the damper and the bracket.

[0011] Optionally, the damper includes a first bottom wall and a first side wall disposed on the side of the first bottom wall, wherein both the first bottom wall and the first side wall are provided with a first through hole; the bracket includes a second bottom wall and a second side wall disposed on the side of the second bottom wall, the second bottom wall corresponding to the first bottom wall and the second side wall corresponding to the first side wall, wherein both the second bottom wall and the second side wall are provided with a second through hole.

[0012] Optionally, there may be multiple first connecting holes, which are arranged sequentially along the radial direction of the first bottom wall.

[0013] Optionally, the bracket is fitted onto the outside of the damper, or the damper is fitted onto the outside of the bracket; one of the bracket and the damper is provided with a slider, which is engaged with the other of the damper and the bracket and is movable relative to the other.

[0014] Optionally, one of the damper and the bracket is provided with a handle that extends out of the air duct. Operating the handle causes the damper to move relative to the bracket between a ventilated state and a closed state.

[0015] Optionally, if the damper has a handle, one of the handle and the bracket has a positioning protrusion and the other has a positioning groove. There are multiple positioning protrusions and / or positioning grooves, which are arranged along the direction from the ventilation state to the closed state. The positioning protrusion can cooperate with any positioning groove, or the positioning groove can cooperate with any positioning protrusion. Alternatively, if the bracket has a handle, one of the handle and the damper has a positioning protrusion and the other has a positioning groove. There are multiple positioning protrusions and / or positioning grooves, which are arranged along the direction from the ventilation state to the closed state. The positioning protrusion can cooperate with any positioning groove, or the positioning groove can cooperate with any positioning protrusion.

[0016] Optionally, the panel assembly also includes a grille located at the first air vent.

[0017] Optionally, the first air outlet is located on the side of the air outlet frame, which includes a front shell and a rear shell disposed opposite to each other; the front shell and / or the rear shell is engaged with the grille, or the front shell and / or the rear shell is provided with a limiting groove, and the grille is limited within the limiting groove, or a limiting groove is provided in front of the grille, and the front shell and / or the rear shell is limited within the limiting groove.

[0018] According to a second aspect of the present invention, a fresh air ventilator is provided, comprising: a panel assembly of the fresh air ventilator as described in any of the above embodiments; a rain cap having a second air vent; and a wall-penetrating pipe connected between the rain cap and the panel assembly to connect the second air vent and a first connecting hole.

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

[0020] The air duct connects the first air outlet and the first connecting hole. The damper in the air duct connects or closes the air duct through the first connecting hole. In the ventilation state, the first connecting hole and the second connecting hole correspond. When the first connecting hole is open, the first air outlet and the first connecting hole are connected through the first connecting hole, and the air duct is open. In the closed state, the first connecting hole and the second connecting hole are offset. When the first connecting hole is closed, the air duct is closed, and the first air outlet and the first connecting hole are no longer connected, effectively preventing airflow in the air duct.

[0021] This application achieves the opening and closing of the air duct by setting up dampers and brackets, eliminating the need for a wax motor and reducing costs.

[0022] The damper can move between a ventilated state and a closed state relative to the bracket, allowing the opening and closing of the air duct to be flexibly adjusted according to actual needs. This improves the flexibility and adaptability of the fresh air unit and can meet the ventilation needs of different scenarios.

[0023] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0024] 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:

[0025] Figure 1 This is an exploded view of a panel assembly provided in an embodiment of this disclosure;

[0026] Figure 2 This is a schematic diagram of a panel assembly provided in an embodiment of the present disclosure, wherein the damper is in a closed state;

[0027] Figure 3 This is a schematic diagram of an assembly structure of a damper and a bracket provided in an embodiment of this disclosure, wherein the damper is in a closed state;

[0028] Figure 4 This is a schematic diagram of the structure of a damper provided in an embodiment of this disclosure;

[0029] Figure 5 This is a schematic diagram of the structure of a bracket provided in an embodiment of this disclosure;

[0030] Figure 6 This is a schematic diagram of a panel assembly provided in an embodiment of the present disclosure, wherein the damper is in a ventilation state;

[0031] Figure 7 This is a schematic diagram of an assembly structure of a damper and a bracket provided in an embodiment of this disclosure, wherein the damper is in a ventilation state;

[0032] Figure 8 This is a schematic diagram of an assembly structure of a front shell and a grille provided in an embodiment of this disclosure;

[0033] Figure 9 This is a schematic diagram of an assembly structure of a rear shell and a grille provided in an embodiment of this disclosure;

[0034] Figure 10 This is a cross-sectional view of a fresh air unit provided in an embodiment of this disclosure;

[0035] Figure 11 This is a schematic diagram of another assembly structure of damper and bracket provided in an embodiment of this disclosure;

[0036] Figure 12 yes Figure 11 A magnified structural diagram of section F in the middle.

[0037] Figure label:

[0038] 10: Panel assembly; 101: Air outlet frame; 102: Front shell; 103: Rear shell; 105: Grille; 106: First limiting groove; 107: Second limiting groove; 108: Second buckle; 109: First connecting hole; 110: Second latching protrusion;

[0039] 20: Air damper; 201: First bottom wall; 202: First side wall; 203: First through hole; 204: Groove; 205: Handle; 206: Connecting protrusion; 207: Reinforcing rib; 208: Positioning groove;

[0040] 30: Bracket; 301: Second bottom wall; 302: Second side wall; 303: Second through hole; 304: Rotating shaft; 305: Slider; 306: Mounting port; 307: Support platform; 308: Positioning protrusion;

[0041] 401: Through-wall pipe; 402: Fan; 403: Heat exchange core; 404: Wall mounting plate; 405: Rain cap; 406: Second air outlet. Detailed Implementation

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] Unless otherwise stated, the term "multiple" means two or more.

[0047] 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.

[0048] 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.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0050] Combination Figure 1-12 As shown, this disclosure provides a panel assembly 10 for a fresh air unit 402.

[0051] The panel assembly 10 includes an air outlet frame 101, an air damper 20, and a bracket 30.

[0052] The air outlet frame 101 defines the air outlet duct and is provided with a first air outlet and a first connecting hole 109 connected to the air outlet duct; the damper 20 is provided in the air outlet duct and is provided with a first through hole 203, and the first air outlet and the first connecting hole 109 are connected through the first through hole 203; the bracket 30 is provided corresponding to the damper 20 and is provided with a second through hole 303, and the damper 20 can move between the ventilation state and the closed state relative to the bracket 30.

[0053] Among them, such as Figure 6 As shown, in the ventilation state, the first through hole 203 corresponds to the second through hole 303 to allow the air duct to be open; as Figure 2 As shown, in the closed state, the first through hole 203 and the second through hole 303 are offset to close the air duct.

[0054] like Figure 10 As shown, the fresh air unit 402 also includes a rain cap 405, a heat exchange core 403, a fan 402, a first filter element, a second filter element, and a wall-penetrating pipe 401. The rain cap 405 is provided with a second air outlet 406; the wall-penetrating pipe 401 connects the rain cap 405 and the panel assembly 10 to connect the second air outlet 406 and the first connecting hole 109.

[0055] The panel assembly 10 also includes a wall-mounted plate 404, which is located between the air outlet frame 101 and the through-wall pipe 401. An electrical control module is also provided between the air outlet frame 101 and the wall-mounted plate 404. The air outlet frame 101 and the wall-mounted plate 404 are detachably connected. The wall-mounted plate 404 has a second connecting hole, which connects the first connecting hole 109 and the through-wall pipe 401. The fan 402 and the heat exchange core 403 are located inside the through-wall pipe 401. The first air outlet, the first connecting hole 109, the second connecting hole, the through-wall pipe 401, and the second air outlet 406 are connected in sequence.

[0056] The first filter element is located between the fan 402 and the wall panel 404, and the second filter element is located between the heat exchange core 403 and the rain cap 405.

[0057] When the fan 402 rotates in the first direction, outdoor air flows out into the room through the second air outlet 406, the second filter element, the heat exchange core 403, the first filter element, the second connecting hole, the first connecting hole 109, and the first air outlet; when the fan 402 rotates in the second direction, indoor air flows out into the outside through the first air outlet, the first connecting hole 109, the second connecting hole, the first filter element, the second filter element, and the second air outlet 406.

[0058] The air duct connects the first air outlet and the first connecting hole 109. The damper 20 connects or closes the air duct through the first through hole 203. In the ventilation state, the first through hole 203 and the second through hole 303 correspond. When the first through hole 203 is open, the first air outlet and the first connecting hole 109 are connected through the first through hole 203, and the air duct is open. When closed, the first through hole 203 and the second through hole 303 are offset. When the first through hole 203 is closed, the air duct is closed, and the first air outlet and the first connecting hole 109 are no longer connected, effectively preventing airflow within the air duct.

[0059] This application achieves the opening and closing of the air duct by setting up the damper 20 and the bracket 30, eliminating the need for a wax motor and reducing costs.

[0060] The damper 20 can move between the ventilation state and the closed state relative to the bracket 30, so that the opening and closing of the air duct can be flexibly adjusted according to actual needs, which improves the flexibility and adaptability of the fresh air unit 402 and can meet the ventilation needs in different scenarios.

[0061] Moreover, in the ventilated state, by adjusting the position of the damper 20 relative to the bracket 30, the corresponding area of ​​the first through hole 203 and the second through hole 303 can be changed, and the opening size of the first through hole 203 can be adjusted, thereby adjusting the air volume of the fresh air unit 402.

[0062] Optionally, such as Figure 5 and Figure 7 As shown, the damper 20 can rotate relative to the bracket 30 between a ventilated state and a closed state.

[0063] The rotational movement of the damper 20 relative to the bracket 30 makes the structure of the entire panel assembly 10 more compact, occupies less space, is easier to install and maintain, and also reduces manufacturing costs.

[0064] The rotational movement enables precise alignment or misalignment between the damper 20 and the bracket 30, ensuring more reliable switching between the ventilation and closed states of the air duct. This avoids problems such as air duct leakage or incomplete closure caused by inaccurate movement, thereby improving the operational stability and reliability of the fresh air unit 402.

[0065] Optionally, such as Figure 5As shown, a rotating shaft 304 connects the damper 20 and the bracket 30.

[0066] The rotating shaft 304 connecting the damper 20 and the bracket 30 provides stable support and guidance for the movement of the damper 20, ensuring the smoothness and accuracy of the damper 20 during movement, avoiding shaking or jamming of the damper 20 during movement, and improving the reliability and service life of the damper 20.

[0067] The rotating shaft 304 allows the bracket 30 to not only control the opening and closing of the first through hole 203, but also to support the damper 20.

[0068] Optionally, the damper 20 is disposed on the first connecting hole 109.

[0069] The damper 20 is positioned at the first connecting hole 109, allowing for direct sealing or opening of the hole. This design minimizes the possibility of air leakage and improves the sealing performance of the duct when closed. The direct fit between the damper 20 and the first connecting hole 109 enables more precise opening and closing of the damper 20, better controlling the flow of air and preventing air leakage or dust ingress due to poor sealing.

[0070] In the closed state, the first connecting hole 109 cannot connect with the first air vent because the first through hole 203 is closed; in the ventilated state, the first connecting hole 109 connects with the first air vent because the first through hole 203 is open.

[0071] The outer wall of the bracket 30 is provided with a connecting protrusion 206, which is connected to the rear shell 103, for example, by a screw connection.

[0072] Optionally, such as Figure 5 As shown, the damper 20 includes a first bottom wall 201 and a first side wall 202 disposed on the side of the first bottom wall 201, wherein both the first bottom wall 201 and the first side wall 202 are provided with a first through hole 203; the bracket 30 includes a second bottom wall 301 and a second side wall 302 disposed on the side of the second bottom wall 301, the second bottom wall 301 corresponds to the first bottom wall 201, and the second side wall 302 corresponds to the first side wall 202, wherein both the second bottom wall 301 and the second side wall 302 are provided with a second through hole 303.

[0073] There is a bend at the connection between the first bottom wall 201 and the first side wall 202, and there is also a bend at the connection between the second bottom wall 301 and the second side wall 302, forming a structure in which the bracket 30 is sleeved on the outside of the damper 20 or the damper 20 is sleeved on the outside of the bracket 30.

[0074] The design of the first bottom wall 201 and the first side wall 202 of the damper 20, and the second bottom wall 301 and the second side wall 302 of the bracket 30, makes the structure of the damper 20 and the bracket 30 more stable and robust, capable of withstanding greater wind pressure and external forces, improving the structural strength and durability of the fresh air unit 402, and extending its service life.

[0075] In the ventilated state, the first through hole 203 on the first bottom wall 201 corresponds to the second through hole 303 on the second bottom wall 301, and the first through hole 203 on the first bottom wall 201 is open; the first through hole 203 on the first side wall 202 corresponds to the second through hole 303 on the second side wall 302, and the first through hole 203 on the first side wall 202 is open. In the closed state, the first through hole 203 on the first bottom wall 201 is offset from the second through hole 303 on the second bottom wall 301, and the first through hole 203 on the first bottom wall 201 is closed; the first through hole 203 on the first side wall 202 is offset from the second through hole 303 on the second side wall 302, and the first through hole 203 on the first side wall 202 is closed.

[0076] By providing first through holes 203 on both the first bottom wall 201 and the first side wall 202, the ventilation area of ​​the first through holes 203 is increased, thereby increasing the air volume of the fresh air unit 402.

[0077] Optionally, such as Figure 5 As shown, there are multiple first connecting holes, which are arranged sequentially along the radial direction of the first bottom wall. This not only increases the number of first connecting holes but also ensures the strength of the damper.

[0078] like Figure 5 As shown, the opening area of ​​the multiple first connecting holes increases sequentially along the radial direction of the first bottom wall.

[0079] Multiple second connecting holes are arranged sequentially along the radial direction of the second bottom wall, and the opening area of ​​the multiple second connecting holes increases sequentially along the radial direction of the second bottom wall.

[0080] Optionally, such as Figure 5 As shown, the bracket 30 is sleeved on the outside of the damper 20 or the damper 20 is sleeved on the outside of the bracket 30; one of the bracket 30 and the damper 20 is provided with a slider 305, which is engaged with the other of the damper 20 and the bracket 30 and can move relative to the other.

[0081] The design of slider 305 makes the connection between damper 20 and bracket 30 more secure. At the same time, slider 305 can also move relative to the other component of bracket 30 and damper 20, which ensures a reliable connection between damper 20 and bracket 30 without affecting the movement of damper 20, thereby improving the stability and reliability of the entire panel assembly 10.

[0082] The number of sliders 305 can be one or more. Taking the bracket 30 sleeved on the outside of the damper 20 as an example, the slider 305 can be set on either the bracket 30 or the damper 20. Specifically, taking the slider 305 set on the bracket 30 as an example, the second sidewall 302 protrudes towards the first sidewall 202 to form the slider 305. The first sidewall 202 has a groove 204 corresponding to the slider 305. The slider 305 is set in the groove 204. The groove 204 extends in the direction from the ventilation state to the closed state, such as... Figure 5 The groove 204 extends circumferentially along the first sidewall 202, and the slider 305 moves relative to the groove 204 along the extension direction of the groove 204, so that the engagement of the slider 305 and the groove 204 does not affect the switching of the damper 20 from the ventilation state to the closed state. Alternatively, the groove 204 may not be provided on the first sidewall 202, and the slider 305 abuts against the surface of the first sidewall 202 away from the first bottom wall 201. The rotating shaft 304 is provided with the slider 305, which is held in place by the first bottom wall 201 and rotates with the rotating shaft 304.

[0083] Optionally, such as Figure 5 As shown, one of the damper 20 and the bracket 30 is provided with a handle 205. The handle 205 extends out of the air duct. By operating the handle 205, the damper 20 can be moved relative to the bracket 30 between a ventilated state and a closed state.

[0084] By setting the handle 205 and extending it out of the air duct, the user can directly operate the handle 205 to drive the damper 20 to move relative to the bracket 30, thereby realizing the ventilation and closure of the air duct. The operation is simple and convenient, which improves the ease of use of the fresh air unit 402. It also makes it easy for users to quickly adjust the air volume according to actual needs, and can also reduce the cost of the fresh air unit 402.

[0085] like Figure 5 As shown, a handle 205 is located on the damper 20. The bracket 30 has a mounting opening 306, through which the handle 205 extends, allowing the user to access the handle 205. For example, the handle 205 is connected to a first side wall 202, and the mounting opening 306 is located on a second side wall 302. The dimension of the mounting opening 306 in the direction from the ventilated state to the closed state is larger than the dimension of the handle 205 in the same direction, allowing the handle 205 to move relative to the mounting opening 306 in this direction, thereby switching the damper 20 between the ventilated and closed states. A support platform 307 is provided within the mounting opening 306, supporting the handle 205 and improving the stability of the handle 205 during movement.

[0086] Optionally, such as Figure 5 and Figure 7As shown, when the bracket 30 is sleeved on the outside of the damper 20, the handle 205 is located on the damper 20. The bracket 30 has an installation port 306, through which the handle 205 extends.

[0087] When the damper 20 is mounted on the outside of the bracket 30, the handle 205 is mounted on the bracket 30, the damper 20 has an installation port 306, and the handle 205 extends out through the installation port 306.

[0088] The handle is equipped with reinforcing ribs 207 to enhance its strength.

[0089] like Figure 11 and Figure 12 As shown, when the damper is equipped with a handle, one of the handle and the bracket is provided with a positioning protrusion 308 and the other is provided with a positioning groove 208. There are multiple positioning protrusions and / or positioning grooves, which are arranged in the direction from the ventilation state to the closed state. The positioning protrusion can cooperate with any positioning groove, or the positioning groove can cooperate with any positioning protrusion.

[0090] When there are multiple positioning protrusions, the multiple positioning protrusions are arranged along the direction from the ventilation state to the closed state, that is, along the circumference of the damper or bracket; when there are multiple positioning grooves, the multiple positioning grooves are arranged along the direction from the ventilation state to the closed state, that is, along the circumference of the damper or bracket.

[0091] The positioning protrusion can engage with any positioning groove, or the positioning groove can engage with any positioning protrusion, thereby adjusting the opening position of the damper, that is, adjusting the conduction area of ​​the first connecting hole.

[0092] When the bracket is equipped with a handle, one of the handle and the damper is provided with a positioning protrusion and the other is provided with a positioning groove. There are multiple positioning protrusions and / or positioning grooves, which are arranged in the direction from the ventilation state to the closed state. The positioning protrusion can cooperate with any positioning groove, or the positioning groove can cooperate with any positioning protrusion.

[0093] When there are multiple positioning protrusions, the multiple positioning protrusions are arranged along the direction from the ventilation state to the closed state, that is, along the circumference of the damper or bracket; when there are multiple positioning grooves, the multiple positioning grooves are arranged along the direction from the ventilation state to the closed state, that is, along the circumference of the damper or bracket.

[0094] The positioning protrusion can engage with any positioning groove, or the positioning groove can engage with any positioning protrusion, thereby adjusting the opening position of the damper, that is, adjusting the conduction area of ​​the first connecting hole.

[0095] Optionally, such as Figure 1As shown, the panel assembly 10 also includes a grille 105, which is located at the first air vent.

[0096] The grille 105 is located at the first air inlet and can divert and guide the air flowing out of the first air inlet, so that the air is more evenly distributed in all directions, improving the ventilation effect and air distribution uniformity of the fresh air unit 402, enhancing the circulation and air exchange effect of indoor air, and providing users with a more comfortable indoor environment.

[0097] The design of the grille 105 also serves a certain decorative purpose, making the appearance of the fresh air unit 402 more aesthetically pleasing and coordinating with the interior decoration style, thereby improving the product's market competitiveness and user experience.

[0098] like Figure 2 As shown, the handle 205 extends from the grille 105, so that the part of the handle 205 extending out of the air duct is located on the side of the panel assembly 10, rather than the front, thereby avoiding the handle 205 affecting the appearance of the panel assembly 10.

[0099] Optionally, such as Figure 8 and Figure 9 As shown, the first air outlet is located on the side of the air outlet frame 101, which includes a front shell 102 and a rear shell 103 disposed opposite to each other.

[0100] The front shell 102 and the rear shell 103 are arranged sequentially in the front-to-back direction. The first air vent is located between the front shell 102 and the rear shell 103, that is, the first air vent is located on the side of the air outlet frame 101. Compared with the front of the air outlet frame 101, the side has less impact on the overall appearance of the machine. Therefore, there is no need to set a decorative panel to block the first air vent, thereby avoiding the problems of increased machine thickness caused by the decorative panel and easy dust accumulation between the decorative panel and the damper 20.

[0101] The grille 105 is located between the front shell 102 and the rear shell 103, and the grille 105 is detachably connected to the front shell 102.

[0102] The front shell 102 is engaged with the grille 105, or the front shell 102 is provided with a limiting groove, and the grille 105 is limited within the limiting groove, or the grille 105 is provided with a limiting groove in front, and the front shell 102 is limited within the limiting groove.

[0103] One of the front housing 102 and the grille 105 is provided with a first buckle, and the other is provided with a first buckle protrusion. The first buckle engages with the first buckle to engage the front housing 102 and the grille 105. Alternatively, one of the front housing 102 and the grille 105 is provided with a first buckle, and the other is provided with a first buckle groove. The first buckle engages with the first buckle groove to engage the front housing 102 and the grille 105.

[0104] The front shell 102 is provided with a first limiting groove 106. One end of the grille 105 facing the front shell 102 (i.e. the front end of the grille 105) is located in the first limiting groove 106 and is adapted to the first limiting groove 106 so that the grille 105 is limited to the first limiting groove 106.

[0105] Alternatively, the first limiting groove 106 is provided in the grille 105, and the front shell 102 is limited within the first limiting groove 106.

[0106] The grille 105 is detachably connected to the rear shell 103.

[0107] The rear shell 103 is engaged with the grille 105, or the rear shell 103 is provided with a limiting groove, and the grille 105 is limited within the limiting groove, or the grille 105 is provided with a limiting groove at the rear, and the rear shell 103 is limited within the limiting groove.

[0108] One of the rear cover 103 and the grille 105 is provided with a second buckle 108, and the other is provided with a second buckle protrusion 110. The second buckle 108 and the second buckle protrusion 110 engage with each other to engage the rear cover 103 and the grille 105. Alternatively, one of the rear cover 103 and the grille 105 is provided with a second buckle 108, and the other is provided with a second buckle groove. The second buckle 108 and the second buckle groove engage with each other to engage the rear cover 103 and the grille 105.

[0109] The rear shell 103 is provided with a second limiting groove 107. One end of the grille 105 facing the rear shell 103 (i.e., the rear end of the grille 105) is located in the second limiting groove 107 and is adapted to the second limiting groove 107 so that the grille 105 is limited to the second limiting groove 107.

[0110] Alternatively, the second limiting groove 107 is provided in the grille 105, and the rear shell 103 is limited within the second limiting groove 107.

[0111] The limiting groove includes a first limiting groove 106 and / or a second limiting groove 107.

[0112] A second aspect of this utility model provides a fresh air unit 402, including a panel assembly 10, a rain cap 405, and a wall-penetrating pipe 401 as described in any of the above embodiments. The rain cap 405 is provided with a second air vent 406; the wall-penetrating pipe 401 is connected between the rain cap 405 and the panel assembly 10 to connect the second air vent 406 and a first connecting hole 109.

[0113] The fresh air unit 402 provided in the second aspect of this utility model has all the beneficial effects of the panel assembly 10 as described in any of the above embodiments, since it includes the panel assembly 10 as described in any of the above embodiments, and will not be repeated here.

[0114] The panel assembly 10 also includes a wall-mounting plate 404, which has a second connecting hole. The front shell 102, the rear shell 103, and the wall-mounting plate 404 are arranged sequentially. The wall-mounting plate 404 is connected to the mounting base (e.g., a wall) and to the rear shell 103 to connect the rear shell 103 to the mounting base. The first connecting hole 109 communicates with the second connecting hole.

[0115] The fresh air unit 402 also includes a fan 402 and a heat exchange core 403, which are located inside the wall-penetrating pipe 401. Driven by the fan 402, outdoor air flows through the second air outlet 406, the heat exchange core 403, the second connecting hole, the first connecting hole 109, the first through hole 203, and the second through hole 303 to the grille 105 to enter the room; or, driven by the fan 402, indoor air flows through the grille 105, the second through hole 303, the first through hole 203, the first connecting hole 109, the second connecting hole, the heat exchange core 403, and the second air outlet 406 to the outside to enter the outdoors.

[0116] 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 machine, the panel assembly comprising: include: An air outlet frame defines an air outlet duct and is provided with a first air inlet and a first connecting hole that are connected to the air outlet duct; An air damper is located inside the air duct and has a first through hole. The first air outlet and the first connecting hole are connected through the first through hole. The bracket is designed to accommodate the damper and has a second through hole, allowing the damper to move between a ventilated state and a closed state relative to the bracket. In the ventilated state, the first through hole corresponds to the second through hole to allow the air duct to be open; in the closed state, the first through hole and the second through hole are offset to close the air duct.

2. The panel assembly of the fresh air unit according to claim 1, characterized in that, The damper can rotate relative to the bracket between a ventilated state and a closed state, and a rotating shaft connects the damper and the bracket.

3. The panel assembly of the fresh air unit according to claim 1, characterized in that, The damper includes a first bottom wall and a first side wall disposed on the side of the first bottom wall, wherein both the first bottom wall and the first side wall are provided with a first through hole; The bracket includes a second bottom wall and a second side wall disposed on the side of the second bottom wall. The second bottom wall corresponds to the first bottom wall, and the second side wall corresponds to the first side wall. Both the second bottom wall and the second side wall are provided with a second through hole.

4. The panel assembly of the fresh air unit according to claim 3, characterized in that, There are multiple first connecting holes, which are arranged sequentially along the radial direction of the first bottom wall.

5. The panel assembly of the fresh air unit according to claim 1, characterized in that, The bracket is fitted onto the outside of the damper, or the damper is fitted onto the outside of the bracket; One of the bracket and the damper is equipped with a slider, which engages with the other of the damper and the bracket and is able to move relative to the other.

6. The panel assembly of the fresh air unit according to any one of claims 1 to 5, characterized in that, One of the damper and the bracket is equipped with a handle that extends out of the air duct. Operating the handle causes the damper to move between a ventilated state and a closed state relative to the bracket.

7. The panel assembly of the fresh air unit according to claim 6, characterized in that, When the damper has a handle, one of the handle and the bracket has a positioning protrusion, and the other has a positioning groove. There are multiple positioning protrusions and / or positioning grooves, arranged along the direction from the ventilation state to the closed state. The positioning protrusion can mate with any positioning groove, or the positioning groove can mate with any positioning protrusion; or When the bracket is equipped with a handle, one of the handle and the damper is provided with a positioning protrusion and the other is provided with a positioning groove. There are multiple positioning protrusions and / or positioning grooves, which are arranged in the direction from the ventilation state to the closed state. The positioning protrusion can cooperate with any positioning groove, or the positioning groove can cooperate with any positioning protrusion.

8. The fresh air machine panel assembly of any one of claims 1-5, wherein, Also includes: The grille is located at the first air vent.

9. The fresh air machine panel assembly of claim 8, wherein, The first air outlet is located on the side of the air outlet frame, which includes a front shell and a rear shell arranged opposite to each other. The front shell and / or rear shell are engaged with the grille, or the front shell and / or rear shell are provided with a limiting groove, and the grille is limited within the limiting groove, or a limiting groove is provided in front of the grille, and the front shell and / or rear shell are limited within the limiting groove.

10. A fresh air machine characterized by, include: The panel assembly of the fresh air unit as described in any one of claims 1 to 9; The rain cap has a second vent. A through-wall pipe connects the rain cap and the panel assembly to connect the second air vent and the first connecting hole.

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