Shell assembly for fresh air ventilator and fresh air ventilator

Abstract

The utility model relates to the technical field of air conditioning, and discloses a shell assembly for a fresh air ventilator and the fresh air ventilator. The shell assembly comprises a shell provided with an air opening; the gear is controlled to rotate; the connecting rod comprises a rack meshed with the gear, so that the gear drives the connecting rod to move; the air guide grid covers the air opening and is movably connected with the shell and the connecting rod, and the gear rotates to drive the connecting rod to move, so that the connecting rod drives the air guide grid to open or close the air opening. The air guide grid does not need to be reset through an elastic piece, opening and closing of the air guide grid are prevented from being affected by damage of the elastic piece, and matching stability and reliability of the gear and the rack are high.

Description

Technical Field

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

[0002] Currently, fresh air systems are an effective air conditioning device that can expel stale indoor air to the outside and bring in fresh outdoor air, ensuring that the room is always filled with fresh air.

[0003] A single-hole heat exchanger is disclosed in the related technology, in which a grille is used to open and close the air vent. 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.

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

[0005] Wax motors require springs for resetting during operation. However, these springs have a limited lifespan and are prone to fatigue, deformation, or even damage over time. Once a spring is damaged, the opening and closing function of the grille will be affected, causing the equipment to malfunction and increasing maintenance costs and the risk of failure.

[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 housing assembly for a fresh air system and a fresh air system to solve the problem of easily damaged spring clips in related technologies.

[0009] According to a first aspect of the present invention, a housing assembly for a fresh air unit is provided, comprising: a housing having an air vent; a gear that rotates under control; a connecting rod including a rack meshing with the gear so that the gear drives the connecting rod to move; and an air guide grille covering the air vent and movably connected to both the housing and the connecting rod. The rotation of the gear drives the connecting rod to move, so that the connecting rod drives the air guide grille to open or close the air vent.

[0010] Optionally, the air guide grille is provided with a sliding shaft, and the connecting rod is provided with a first sliding hole. The sliding shaft is slidably disposed in the first sliding hole, and the extension direction of the first sliding hole is not parallel to the length direction of the rack.

[0011] Optionally, the extension direction of the first sliding hole is perpendicular to the length direction of the rack.

[0012] Optionally, the housing is provided with a second sliding hole, and the sliding shaft is slidably disposed in the second sliding hole. The extension direction of the second sliding hole is not parallel to the extension direction of the first sliding hole.

[0013] Optionally, the second sliding hole includes: a first hole segment; a second hole segment connected to the first hole segment and forming a bend at the connection point; along the direction of movement of the connecting rod when the air guide grille is opened, the first hole segment is inclined toward the first end of the first sliding hole, and the second hole segment is inclined toward the second end of the first sliding hole, wherein the first end and the second end are the two ends of the extension direction of the first sliding hole.

[0014] Optionally, the air guide grille is rotatably connected to the housing via a rotating shaft.

[0015] Optionally, the air guide grille is provided with a sliding shaft, and the outer casing is provided with a second sliding hole. The sliding shaft is slidably disposed in the second sliding hole, and the second sliding hole is arc-shaped, with the center of the arc located on the axis of the rotating shaft.

[0016] Optionally, the gear is provided with a pressure plate, and the housing includes a limiting plate. The pressure plate and the limiting plate are arranged sequentially along the limiting direction and together define the receiving space. The connecting rod is at least partially located in the receiving space to restrict the movement of the connecting rod along the limiting direction, wherein the limiting direction is perpendicular to the extension direction of the rack.

[0017] Optionally, the housing assembly for the fresh air unit also includes: a motor connected to a gear drive for driving the gear to rotate; wherein the motor is located on the side of the gear away from the limiting plate.

[0018] According to a second aspect of the present invention, a fresh air ventilator is provided, comprising: a housing assembly for the fresh air ventilator as described in any of the above embodiments.

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

[0020] When the gear rotates, it meshes with the rack, causing the rack to move, which in turn moves the connecting rod. The movement of the connecting rod causes the air guide grille to move relative to the outer casing, thus opening the air vent. When the gear reverses, it causes the connecting rod to move in the opposite direction, which in turn causes the air guide grille to move in the opposite direction to close the air vent. This design eliminates the need for a spring to reset the air guide grille, avoiding the impact of spring damage on the opening and closing of the air guide grille. Furthermore, the gear and rack combination offers high stability and reliability.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] 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:

[0023] Figure 1 This is a schematic diagram of the structure of a fresh air unit provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle;

[0025] Figure 3 This is an exploded schematic diagram of a fresh air unit provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of the structure of a mounting bracket provided in an embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of the structure of an outer tube provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of the structure of an inner tube provided in an embodiment of this disclosure;

[0029] Figure 7 This is a flowchart of the control logic for a fresh air unit provided in an embodiment of this disclosure;

[0030] Figure 8 This is a schematic diagram of a housing assembly provided in an embodiment of the present disclosure, wherein the air guide grille is in the closed state;

[0031] Figure 9 yes Figure 8 Enlarged structural diagram of the middle M section;

[0032] Figure 10 This is a schematic diagram of the structure of an air guide grille provided in an embodiment of this disclosure;

[0033] Figure 11 This is a schematic diagram of another housing assembly provided in an embodiment of this disclosure, wherein the air guide grille is in the closed state;

[0034] Figure 12 This is a schematic diagram of another housing assembly provided in an embodiment of the present disclosure, wherein the air guide grille is in the closed state;

[0035] Figure 13 yes Figure 12 A sectional view along the EE direction;

[0036] Figure 14 yes Figure 13A magnified structural diagram of the N-section;

[0037] Figure 15 yes Figure 12 Sectional view along the FF direction;

[0038] Figure 16 This is a schematic diagram of a connecting rod provided in an embodiment of this disclosure;

[0039] Figure 17 This is a schematic diagram of the structure of a housing provided in an embodiment of this disclosure;

[0040] Figure 18 yes Figure 17 Enlarged structural diagram of the middle P section;

[0041] Figure 19 This is a schematic diagram of a housing assembly provided in an embodiment of the present disclosure, wherein the air guide grille is opened at 45°;

[0042] Figure 20 This is a cross-sectional view of a housing assembly provided in one direction according to an embodiment of the present disclosure, wherein the air deflector is opened at 45°;

[0043] Figure 21 yes Figure 20 Enlarged structural diagram of the middle Q section;

[0044] Figure 22 This is a cross-sectional view of a housing assembly provided in an embodiment of this disclosure from another direction, wherein the air deflector is opened at 45°;

[0045] Figure 23 yes Figure 22 Enlarged structural diagram of the middle R section;

[0046] Figure 24 This is a schematic diagram of a housing assembly provided in an embodiment of the present disclosure, wherein the air guide grille is opened at 90°;

[0047] Figure 25 This is a cross-sectional view of a housing assembly provided in one direction according to an embodiment of the present disclosure, wherein the air guide grille is opened at 90°;

[0048] Figure 26 yes Figure 25 Enlarged structural diagram of the middle T section;

[0049] Figure 27 This is a cross-sectional view of a housing assembly provided in an embodiment of this disclosure from another direction, wherein the air deflector is opened at 90°;

[0050] Figure 28 yes Figure 27 A magnified structural diagram of the middle W section.

[0051] Figure label:

[0052] 100: Fresh air system;

[0053] 10: Solar panel assembly; 101: Solar panel; 102: Mounting bracket; 103: Limiting protrusion; 104: Clearance groove; 105: Limiting space;

[0054] 20: Interior;

[0055] 30: Outdoor; 301: Installation position; 302: Fresh air inlet; 303: Limiting block; 304: Limiting groove;

[0056] 40: Through-wall conduit; 401: External conduit; 402: Internal conduit; 403: Cable tray;

[0057] 50: Air guide grille; 501: Sliding shaft; 502: Rotating shaft; 503: Protrusion; 504: Rotating shaft;

[0058] 60: Gear; 601: Pressure plate;

[0059] 70: Connecting rod; 701: Rack; 702: First sliding hole; 703: First end; 704: Second end; 705: Rod body;

[0060] 80: Outer shell; 801: Second sliding hole; 802: First hole section; 803: Second hole section; 804: Bending; 805: Limiting plate; 806: Accommodation space; 807: Rotation hole; 808: Air vent;

[0061] 90: Electric motor. Detailed Implementation

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] Unless otherwise stated, the term "multiple" means two or more.

[0067] 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.

[0068] 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.

[0069] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0070] Combination Figure 1-6 As shown, this disclosure provides a fresh air unit 100, including an outdoor unit 30, an indoor unit 20, a wall-penetrating pipe 40, and a solar panel assembly 10.

[0071] like Figures 1 to 4 As shown, the exterior 30 is provided with a fresh air inlet 302 and an installation position 301; the interior is provided with an indoor air outlet; the through-wall pipe 40 connects the exterior 30 and the interior 20 to connect the fresh air inlet 302 and the indoor air outlet; the fan is located inside the through-wall pipe 40; the solar panel assembly 10 includes a solar panel 101, the solar panel assembly 10 is located at the installation position 301, and the solar panel 101 is electrically connected to the fan to supply power to the fan.

[0072] The indoor air vent and the fresh air vent 302 are connected by a wall-penetrating pipe 40. Under the action of the fan, indoor air is discharged to the outside through the indoor air vent, the wall-penetrating pipe 40 and the fresh air vent 302 in sequence, or outdoor air flows into the room through the fresh air vent 302, the wall-penetrating pipe 40 and the indoor air vent in sequence.

[0073] The solar panel assembly 10 is located at the installation position 301, that is, the solar panel assembly 10 is located outdoors 30, rather than isolated from the fresh air unit 100. In this way, when installing the fresh air unit 100, the solar panel assembly 10 can be installed at the installation position 301 first, and then the fresh air unit 100 can be installed in place, which shortens the time for installers to work at height and reduces safety hazards.

[0074] Optionally, the solar panel assembly 10 is detachably connected to the outdoor environment 30.

[0075] The solar panel module 10 is detachably connected to the outdoor environment 30, which facilitates the installation, maintenance and replacement of the solar panel module 10, reduces the difficulty of installation and maintenance costs, and improves the service life of the product and the user experience.

[0076] The solar panel assembly 10 and the outdoor unit 30 can be detachably connected by means of screws, snap-fit, or other methods.

[0077] The mounting position 301 is a mounting position 301 provided on the outdoor 30 for installing the solar panel assembly 10. It can be a groove structure or not a groove structure.

[0078] Optionally, such as Figures 1 to 4 As shown, one of the outdoor unit 30 and the solar panel assembly 10 is rotatable relative to the other of the outdoor unit 30 and the solar panel assembly 10 between a restricted position and a disengaged position, wherein in the restricted position the solar panel assembly 10 is restricted to the outdoor unit 30, and in the disengaged position the solar panel assembly 10 is detachable from the outdoor unit 30.

[0079] In the limiting position, the solar panel assembly 10 can be stably installed in the mounting position 301, realizing the installation of the solar panel assembly 10 on the outdoor space 30; in the detached position, the solar panel assembly 10 can be separated from the outdoor space 30, realizing the removal of the solar panel assembly 10 from the outdoor space 30.

[0080] The limit position and disengagement position are switched by rotating the solar panel module 10 relative to the outdoor environment 30. The operation is simple and intuitive. Users can complete the installation and disassembly of the solar panel module 10 without complicated tools or skills, which improves the user experience.

[0081] Optionally, one of the outdoor unit 30 and the solar panel assembly 10 is provided with a limiting groove 304, and the other of the outdoor unit 30 and the solar panel assembly 10 is provided with a limiting protrusion 103 and a clearance groove 104. In the limiting position, the limiting protrusion 103 is limited within the limiting groove 304, and in the disengaged position, the clearance groove 104 is located within the limiting groove 304.

[0082] When in the limiting position, the limiting protrusion 103 is located within the limiting groove 304 and abuts against the inner wall of the limiting groove 304, so that the limiting protrusion 103 is limited within the limiting groove 304, which can effectively prevent the solar panel assembly 10 from loosening or falling off; when in the disengaged position, the clearance groove 104 is located within the limiting groove 304, and there is a gap between the clearance groove 104 and the limiting groove 304, so that the clearance groove 104 can move relative to the limiting groove 304, thereby allowing the solar panel assembly 10 to move relative to the outdoor space 30, providing sufficient space for the disassembly of the solar panel assembly 10 and ensuring that the disassembly process is carried out smoothly.

[0083] The size and shape of the mounting position 301 are adapted to the size and shape of the solar panel assembly 10. A limiting block 303 is provided on the circumferential edge of the mounting position 301, surrounding the limiting groove 304. The solar panel assembly 10 is provided with a limiting protrusion 103 and a clearance groove 104, which are sequentially arranged along the circumference of the solar panel assembly 10. When the solar panel assembly 10 is installed in the mounting position 301, the clearance groove 104 is aligned with the limiting groove 304. After the solar panel assembly 10 is secured to the mounting position 301, the solar panel assembly 10 is rotated so that the clearance groove 104 is offset from the limiting groove 304, and the limiting protrusion 103 enters the clearance groove 104, thereby achieving limiting of the solar panel assembly 10 in all directions. The limiting protrusion 103 is located on the side of the mounting bracket 102 away from the mounting position 301 and encloses the limiting space 105, within which the solar panel 101 is limited.

[0084] like Figure 3 and Figure 4 As shown, there are multiple limiting blocks 303, which are arranged sequentially along the circumference of the mounting position 301. There are also multiple limiting protrusions 103 and clearance grooves 104, which are arranged sequentially at intervals along the circumference of the solar panel assembly 10.

[0085] Alternatively, the limiting block 303 can be provided on the solar panel assembly 10, and the limiting protrusion 103 and the clearance groove 104 can be provided on the outdoor 30.

[0086] Optionally, such as Figure 4 As shown, the solar panel assembly 10 also includes a mounting bracket 102, which is detachably connected to the outdoor environment 30, and the solar panel 101 is mounted on the mounting bracket 102.

[0087] The mounting bracket 102 provides a stable support platform for the solar panel 101, enabling the solar panel 101 to be more securely fixed to the outdoor environment 30 after installation. This reduces the risk of shaking or damage caused by wind or other external forces, and improves the service life and reliability of the solar panel 101.

[0088] The solar panel 101 is mounted on the mounting bracket 102, making it convenient for users to clean, inspect, and maintain the solar panel 101. When it is necessary to replace the solar panel 101, simply remove the mounting bracket 102; the operation is simple and quick, reducing maintenance costs and time.

[0089] The solar panel 101 and the mounting bracket 102 can be fixedly connected or movable, detachable or non-detachable.

[0090] Optionally, the fresh air inlet 302 is located at the bottom of the outdoor unit 30, and the solar panel assembly 10 is located at the top of the outdoor unit 30.

[0091] By placing the fresh air inlet 302 at the bottom of the outdoor unit 30 and the solar panel assembly 10 at the top of the outdoor unit 30, the space of the outdoor unit 30 is fully utilized, making the overall layout of the fresh air unit 100 more reasonable, avoiding space waste, and improving space utilization. Moreover, this layout allows the solar panel 101 to better receive sunlight, improving the power generation efficiency of the solar panel 101 and providing a more stable power supply for the wind turbine.

[0092] Optionally, such as Figure 7 As shown, the fresh air unit 100 also includes a battery and a main control board.

[0093] The solar panel 101, the wind turbine, and the battery are all connected to the main control board. The solar panel 101 charges the battery, and the battery powers the wind turbine. The main control board is configured to: control the battery to power the wind turbine when the battery meets the first preset condition, and control an external power source to power the wind turbine when the battery does not meet the first preset condition.

[0094] The electronic control board enables intelligent connection and control between the solar panel 101, the wind turbine, and the battery, and can automatically switch the power supply mode according to the battery status. The first preset condition can be that the battery charge is greater than a preset charge or the battery voltage is greater than a preset voltage. An external power source connected to the electronic control board can also supply power to the wind turbine.

[0095] Taking the first preset condition of the battery power being greater than the preset power as an example, when the battery meets the first preset condition, the battery power is sufficient, and the control board selects to use the battery to power the fan, making full use of the electrical energy stored in the battery; when the battery does not meet the first preset condition, the battery power is insufficient, and the control board switches to an external power source to power the fan, ensuring the continuous and stable operation of the fan and improving the reliability and stability of the system.

[0096] This intelligent power supply system can adapt to different usage environments and conditions. Whether it is during the day with plenty of sunshine, at night, or on a rainy day, it can ensure the normal operation of the fresh air unit 100, thereby improving the product's applicability and market competitiveness.

[0097] Optionally, the fresh air unit 100 also includes a detection module for detecting environmental parameters.

[0098] The main control board is connected to the detection module. The main control board is also configured to control the battery to enter the power supply mode for powering the fan or to enter the energy storage mode when the environmental parameters meet the second preset condition.

[0099] The detection module monitors environmental parameters in real time, such as light intensity, temperature, and humidity. The control board can automatically adjust the battery's operating mode based on changes in these parameters. The operating modes include power supply mode and energy storage mode. For example, taking light intensity as the environmental parameter, the detection module can be a light sensor. When the environmental parameters meet the second preset condition, the light intensity is greater than the preset intensity, indicating sufficient light. The control board controls the fresh air unit 100 to enter solar power supply mode. The control board checks whether the battery meets the first preset condition. If it does, the battery powers the fan, and the battery operates in power supply mode. If it does not meet the condition, the control board controls the battery to enter energy storage mode, and the solar panel 101 charges the battery. When the environmental parameters do not meet the second preset condition, indicating insufficient light, the control board checks whether the battery meets the first preset condition. If it does, the battery powers the fan; if it does not, an external power source powers the fan.

[0100] When the environmental parameters meet the second preset condition, the battery is controlled to enter the power supply mode to supply power to the fan or the battery is controlled to enter the energy storage mode. In this way, when environmental conditions permit, the solar panel 101 is used to supply power or the battery is charged as much as possible, which reduces the energy consumption and operating cost of the fresh air fan 100.

[0101] like Figure 7 As shown, a control method for a fresh air unit 100 is provided, including steps S701-S708.

[0102] Step S701: Determine whether the environmental parameters meet the second preset condition. If they do, proceed to step S702 to enter the solar power supply mode. If not, proceed to step S706.

[0103] After executing step S702, execute step S703 to determine whether the battery meets the first preset condition. If it does, execute step S704 to start the fan and control the battery to supply power to the fan, and the battery enters the power supply mode. If it does not meet the condition, execute step S705 to supply power to the battery through the solar panel 101, the battery enters the energy storage mode, and the fan is started, using an external power source to supply power to the fan.

[0104] After executing step S706, if the battery meets the first preset condition, then execute step S707 to start the fan and control the battery to supply power to the fan; if not, then execute step S708 to start the fan and supply power to the fan from an external power source.

[0105] Optionally, such as Figure 6 As shown, the fresh air unit 100 also includes a main control board, which is connected to the fan. The main control board is located in the indoor 20 and / or the through-wall pipe 40. The solar panel 101 is connected to the main control board via wires. The wall of the through-wall pipe 40 is provided with a wiring trough 403 for accommodating the wires.

[0106] By setting a wiring trough 403 in the wall of the through-wall pipe 40 to accommodate the wires, the wires between the solar panel 101 and the electrical control board are hidden in the wiring trough 403, avoiding the safety hazards caused by exposed wires, such as leakage, short circuit, electric shock, etc., and improving the safety of the product.

[0107] The battery is located inside the room 20 and / or inside the wall-penetrating pipe 40.

[0108] The through-wall pipe 40 includes an outer pipe 401 and an inner pipe 402. The inner pipe 402 is sleeved inside the inner pipe 402, and the cable tray 403 is located on the inner wall surface of the inner pipe 402.

[0109] The fresh air unit 100 also includes components such as a filter screen and a ceramic heat exchange core. The fan, filter screen and ceramic heat exchange core are all located inside the inner tube 402.

[0110] like Figures 8 to 28 As shown, the interior 20 includes a housing assembly, which includes a housing 80, a gear 60, a connecting rod 70, and an air guide grille 50.

[0111] The outer casing 80 is provided with an air vent 808, which is the aforementioned indoor air vent 808. The gear 60 rotates under control; the connecting rod 70 includes a rack 701 that meshes with the gear 60, so that the gear 60 drives the connecting rod 70 to move; the air guide grille 50 is covered on the air vent 808 and is movably connected to both the outer casing 80 and the connecting rod 70. When the gear 60 rotates, it drives the connecting rod 70 to move, so that the connecting rod 70 drives the air guide grille 50 to open or close the air vent 808.

[0112] like Figure 11 , Figure 15 and Figure 16 As shown, gear 60 rotates, meshing with rack 701, which in turn moves rack 701, thereby moving connecting rod 70. The movement of connecting rod 70 causes air guide grille 50 to move relative to housing 80, thus opening air vent 808. Gear 60 reverses, causing connecting rod 70 to move in the opposite direction, which in turn causes air guide grille 50 to move in the opposite direction to close air vent 808. This eliminates the need for spring reset of air guide grille 50, avoiding the impact of spring damage on the opening and closing of air guide grille 50. Furthermore, the engagement of gear 60 and rack 701 offers high stability and reliability.

[0113] Optionally, such as Figure 10 As shown, the air guide grille 50 is provided with a sliding shaft 501, such as... Figure 16 As shown, the connecting rod 70 is provided with a first sliding hole 702, and the sliding shaft 501 is slidably disposed in the first sliding hole 702, that is, the sliding shaft 501 is disposed in the first sliding hole 702 and can slide relative to the first sliding hole 702 along the extension direction of the first sliding hole 702.

[0114] The extension direction of the first sliding hole 702 (e.g.) Figure 16 (in the left and right directions) and the length direction of rack 701 (e.g.) Figure 16 The sliding shaft 501 is not parallel in the vertical direction, meaning its movement direction is not along the length of the rack 701, which is the same as the movement direction of the connecting rod 70. The first sliding hole 702 moves with the connecting rod 70, causing the sliding shaft 501 to move along the length of the first sliding hole 702. This ensures the movement trajectory of the air guide grille 50 matches the actual requirements, better enabling the opening and closing of the air vent 808 and improving the control accuracy of the air vent 808.

[0115] Optionally, the extension direction of the first sliding hole 702 is perpendicular to the length direction of the rack 701, which simplifies the movement path of the air guide 50, reduces the complexity of the linkage mechanism, and lowers the production cost and maintenance difficulty.

[0116] Optionally, such as Figure 15As shown, the outer casing 80 is provided with a second sliding hole 801, and the sliding shaft 501 is slidably disposed in the second sliding hole 801. That is, the sliding shaft 501 is disposed in the second sliding hole 801 and can move relative to the second sliding hole 801 along the length direction of the second sliding hole 801. The extension direction of the second sliding hole 801 is not parallel to the extension direction of the first sliding hole 702.

[0117] The movement of the connecting rod 70 drives the sliding shaft 501 to move. The second sliding hole 801 of the housing 80 provides additional motion constraints for the sliding shaft 501 of the air guide 50, making the movement of the air guide 50 more stable and better able to adapt to complex motion requirements.

[0118] The extension direction of the second sliding hole 801 is not parallel to the extension direction of the first sliding hole 702, which further optimizes the movement trajectory of the air guide grille 50, enabling it to achieve more complex opening and closing actions and improving the flexibility of the air outlet 808 control.

[0119] Optionally, such as Figure 15 As shown, the second sliding hole 801 includes a first hole section 802 and a second hole section 803, and the second hole section 803 is connected to the first hole section 802 and a bend 804 is formed at the connection point.

[0120] Along the direction of movement of the connecting rod 70 when the air guide grille 50 opens (e.g.) Figure 15 and Figure 16 (in the upward direction), the first hole segment 802 is inclined toward the first end 703 of the first sliding hole 702, and the second hole segment 803 is inclined toward the second end 704 of the first sliding hole 702, wherein the first end 703 and the second end 704 are the two ends of the extension direction of the first sliding hole 702.

[0121] The air guide grille is located inside the air outlet, the connecting rod is located on the outside of the air outlet sidewall, and the second sliding hole is located on the air outlet sidewall.

[0122] like Figures 8 to 18 As shown, when the air guide grille 50 is closed, the sliding shaft 501 is located at the second end 704 and at the first hole section 802 away from the second hole section 803; as the connecting rod 70 moves, the sliding shaft 501 moves toward the first end 703 and moves along the length direction of the first hole section 802 toward the bend 804; when the sliding shaft 501 moves to the bend 804, as... Figures 19 to 23 As shown, when the air guide grille 50 opens to 45°, the sliding shaft 501 moves to the first end 703 and is located at the bend 804; as the air guide grille 50 continues to open, the sliding shaft 501 moves toward the second end 704 and moves away from the bend 804 along the length direction of the second hole section 803; when the air guide grille 50 opens to 90°, as... Figures 24 to 28As shown, the sliding shaft 501 moves again to the second end 704 and is located in the second hole section 803 away from the first hole section 802.

[0123] Along the direction of movement of the connecting rod 70 when the air guide grille 50 is opened, the first hole section 802 is inclined toward the first end 703 of the first sliding hole 702, and the second hole section 803 is inclined toward the second end 704 of the first sliding hole 702. This can reduce the length of the movement trajectory of the sliding shaft 501 in the first sliding hole 702, thereby reducing the length of the first sliding hole 702.

[0124] The first hole segment 802 and the second hole segment 803 are symmetrically structured so that when the air guide grille 50 is opened to 0° (i.e., closed), the sliding shaft 501 is located at the second end 704; when it is opened to 45°, the sliding shaft 501 is located at the second end 704; and when it is opened to 90°, the sliding shaft 501 returns to the first end 703 to further reduce the length of the first sliding hole 702.

[0125] Optionally, the air guide grille 50 is rotatably connected to the housing 80 via the rotating shaft 502, which reduces the movement stroke of the air guide grille 50 and makes the housing assembly more compact.

[0126] like Figure 15 As shown, the air guide grille 50 is provided with a rotating shaft 502, and the outer casing 80 is provided with a rotating hole 807. The rotating shaft 502 is rotatably disposed in the rotating hole 807 so as to be rotatably connected to the rotating hole 807.

[0127] Optionally, the air guide grille 50 is provided with a sliding shaft 501, and the outer casing 80 is provided with a second sliding hole 801. The sliding shaft 501 is slidably disposed in the second sliding hole 801. The second sliding hole 801 is arc-shaped, and the center of the arc is located on the axis of the rotating shaft 502.

[0128] When the sliding shaft 501 moves within the second sliding hole 801, the sliding shaft 501 rotates around the rotating shaft 502, thereby opening the air guide grille 50.

[0129] like Figure 10 As shown, the air guide grille 50 is provided with a protrusion 503 protruding in the thickness direction of the air guide grille 50, and a sliding shaft 501 is provided on the protrusion 503, and the sliding shaft 501 and the rotating shaft 502 are offset from each other in the thickness direction of the air guide grille 50.

[0130] There are multiple air guide grilles 50, which are arranged sequentially along the length of the connecting rod 70. Each air guide grille 50 has a rotating shaft 502 and a sliding shaft 501 at one end, and the other end of the air guide grille 50 is rotatably connected to the outer casing 80 through a rotating shaft 504, with the axes of the rotating shaft 502 and the rotating shaft 504 coinciding.

[0131] Optionally, such as Figure 11As shown, the gear 60 is provided with a pressure plate 601, and the housing 80 includes a limiting plate 805. The pressure plate 601 and the limiting plate 805 are arranged sequentially along the limiting direction and together define the receiving space 806. The connecting rod 70 is at least partially disposed in the receiving space 806 to restrict the movement of the connecting rod 70 along the limiting direction, wherein the limiting direction is perpendicular to the extension direction of the rack 701.

[0132] The arrangement of the receiving space 806 restricts the movement of the connecting rod 70 in the limiting direction, ensuring that the connecting rod 70 only moves along the extension direction of the rack 701, thus limiting the movement of the connecting rod 70. Furthermore, the gear 60 protrudes towards the connecting rod 70 via the stroke pressure plate 601. The receiving space 806 is formed by the pressure plate 601 and the limiting plate 805, eliminating the need for a separate limiting component to restrict the movement of the connecting rod 70 in the limiting direction, resulting in a compact overall housing assembly structure.

[0133] The connecting rod 70 includes a rod body 705, a first sliding hole 702 is provided in the rod body 705, and a rack 701 protrudes outward from the rod body 705 and is located in the receiving space 806.

[0134] like Figure 11 As shown, the housing assembly also includes a motor 90, which is driven by a gear 60 to drive the gear 60 to rotate.

[0135] The motor 90 is located on the side of the gear 60 away from the limiting plate 805, so that the setting of the motor 90 does not affect the setting of the pressure plate 601, and thus does not affect the limiting of the connecting rod 70 by the pressure plate 601.

[0136] The present invention also provides a fresh air unit 100, including a housing assembly for the fresh air unit 100 as described in any of the above embodiments.

[0137] The fresh air unit 100 provided by this utility model has all the beneficial effects of the housing assembly as described in any one of the above embodiments because it includes the housing assembly as described in any one of the above embodiments, and will not be repeated here.

[0138] 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 housing assembly for a fresh air system, characterized in that, include: The outer casing is equipped with air vents; Gears, rotating under controlled conditions; A connecting rod, including a rack that meshes with a gear, so that the gear drives the connecting rod to move; The air guide grille is installed on the air outlet and is movably connected to the outer casing and the connecting rod. When the gear rotates, it drives the connecting rod to move, so that the connecting rod drives the air guide grille to open or close the air outlet.

2. The housing assembly for a fresh air unit according to claim 1, characterized in that, The air guide grille is provided with a sliding shaft, and the connecting rod is provided with a first sliding hole. The sliding shaft is slidably disposed in the first sliding hole, and the extension direction of the first sliding hole is not parallel to the length direction of the rack.

3. The housing assembly for a fresh air system according to claim 2, characterized in that, The extension direction of the first sliding hole is perpendicular to the length direction of the rack.

4. The housing assembly for a fresh air unit according to claim 2, characterized in that, The outer casing is provided with a second sliding hole, and the sliding shaft is slidably disposed in the second sliding hole. The extension direction of the second sliding hole is not parallel to the extension direction of the first sliding hole.

5. The housing assembly for a fresh air unit according to claim 4, characterized in that, The second sliding hole includes: First borehole section; The second hole section connects to the first hole section and forms a bend at the connection point; Along the direction of the linkage's movement when the air guide grille is opened, the first hole section is inclined toward the first end of the first sliding hole, and the second hole section is inclined toward the second end of the first sliding hole, wherein the first end and the second end are the two ends of the extension direction of the first sliding hole.

6. The housing assembly for a fresh air unit according to claim 1, characterized in that, The air guide grille is rotatably connected to the outer casing via a rotating shaft.

7. The housing assembly for a fresh air unit according to claim 6, characterized in that, The air guide grille is provided with a sliding shaft, and the outer shell is provided with a second sliding hole. The sliding shaft is slidably disposed in the second sliding hole. The second sliding hole is arc-shaped, and the center of the arc is located on the axis of the rotating shaft.

8. The housing assembly for a fresh air unit according to any one of claims 1 to 7, characterized in that, The gear is provided with a pressure plate, and the housing includes a limiting plate. The pressure plate and the limiting plate are arranged sequentially along the limiting direction and together define the receiving space. The connecting rod is at least partially located in the receiving space to restrict the movement of the connecting rod along the limiting direction. The limiting direction is perpendicular to the extension direction of the rack.

9. The housing assembly for a fresh air unit according to claim 8, characterized in that, Also includes: An electric motor, connected to a gear drive, is used to drive the gears to rotate; The motor is located on the side of the gear away from the limiting plate.

10. A fresh air ventilator, characterized in that, include: The housing assembly for a fresh air unit as described in any one of claims 1 to 9.

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