Air inlet closing device and air conditioner indoor unit

Abstract

The present invention provides an air inlet closing device and an air conditioner indoor unit. The air inlet closing device includes a housing having an air inlet. The air inlet closing device also includes: a baffle having a closed position for closing the air inlet, a transition position, and an open position located within the housing to open the air inlet; a first driving member drivingly connected to the baffle to rotate the baffle between the closed position and the transition position; and a driving assembly drivingly connected to the baffle to reciprocate the baffle between the transition position and the open position. The air inlet closing device of the present invention solves problems in the prior art such as inlet plate vibration and abnormal noise during air conditioner operation.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to an air inlet closing device and an air conditioner indoor unit. Background Art

[0002] In existing technology, the air inlet of the panel body is mostly composed of multiple air inlet grilles, with a filter layer inside. During operation, the filter removes dust from the indoor air and purifies the airflow from the air outlet. However, when the air conditioner is not used for a long time, a large amount of dust floating in the indoor air will fall on the filter. This dust will cause the filter to become dirty and clogged, reducing the filter and ventilation efficiency, and ultimately affecting the normal operation of the air conditioner.

[0003] To address this issue, the prior art provides an air inlet closing device and an air conditioner equipped with the same. The air inlet closing device utilizes multiple small covers that rotatably cover the air inlet of the air conditioner to open or close the air inlet. When the air conditioner is not in operation, the covers close to cover the air inlet and filter, providing a dust-proof effect. However, when the air conditioner is in operation, dust collected on the covers is flipped open and falls back onto the filter or even the evaporator, causing secondary contamination.

[0004] The prior art also provides an air inlet plate driving structure and an air conditioner having the same, such as Figure 1 As shown, it is connected to the air inlet plate 1 via a gear transmission assembly to drive the air inlet plate 1 to move quickly and accurately, solving the problem of the air inlet plate drive mechanism in the prior art being unable to accurately drive the air inlet plate to close the air inlet. However, this air inlet plate drive structure has reliability and comfort issues such as air inlet plate vibration and abnormal noise during air conditioning operation. It is also complex and occupies a large space. Moreover, although it can achieve the problem of sealing the air inlet and preventing dust, it lacks a cleaning function. As air circulates, there is still a risk of dust falling into the air duct. Summary of the Invention

[0005] The main purpose of the present invention is to provide an air inlet closing device and an air conditioner indoor unit to solve the problems in the prior art of air inlet closing device such as shaking of the air inlet plate and abnormal noise during the operation of the air conditioner.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an air inlet closing device, comprising a shell, the shell having an air inlet, the air inlet closing device also comprising: a baffle, having a closed position for closing the air inlet, a transition position, and an open position for opening the air inlet and located within the shell; a first driving member, drivingly connected to the baffle, so that the baffle rotates between the closed position and the transition position; and a driving assembly, drivingly connected to the baffle, so that the baffle moves back and forth linearly between the transition position and the open position.

[0007] Furthermore, the air inlet closing device also includes: a switching component, at least a portion of which is movably arranged, and when the baffle is in the transition position, at least a portion of the switching component connects the baffle to the first driving member or separates the baffle from the first driving member.

[0008] Furthermore, the baffle has a first transmission part, which includes a first transmission tooth; the drive assembly includes: a transmission component, including a transmission gear, the second transmission tooth of the transmission gear is adapted to the first transmission tooth; when the baffle is in the transition position, the transmission gear is meshed and connected with the first transmission part; a second driving member is drivingly connected to the transmission gear.

[0009] Furthermore, the transmission component includes a plurality of transmission gears, which are meshed and connected in sequence, and the second driving member is drivingly connected to one of the plurality of transmission gears.

[0010] Furthermore, the baffle has two first transmission parts, which are located at both ends of the baffle; the drive assembly includes two transmission components, one first transmission part is used to be connected to one of the two transmission components, and the other first transmission part is used to be connected to the other of the two transmission components.

[0011] Furthermore, the air inlet closing device also includes: a cleaning member, which is rotatably arranged and cleans the baffle when the baffle moves between the transition position and the open position; and a dust collection box, which is located below the cleaning member.

[0012] Furthermore, the air inlet closing device also includes a third driving member, which is drivingly connected to the cleaning member.

[0013] Furthermore, the air inlet closing device also includes: a cleaning member transmission gear, meshingly connected with the transmission gear, a second driving member drivingly connected to the cleaning member transmission gear; and a cleaning member connected to the cleaning member transmission gear.

[0014] Furthermore, the drive assembly also includes a drive box, which is arranged on the inner wall of the shell, and the transmission component and the cleaning component transmission gear are arranged in the drive box; the drive box has an opening, and the tooth tops of the transmission gear and the tooth tops of the cleaning component transmission gear pass through the opening and protrude from the drive box.

[0015] Furthermore, the air inlet closing device also includes: a dust collecting box, which is located below the cleaning member, and the bottom of the driving box and the cleaning member cover are arranged on the dust collecting port of the dust collecting box.

[0016] Furthermore, the cleaning member includes a connecting shaft and a plurality of brush portions, and the plurality of brush portions are spirally mounted on the connecting shaft along an extending direction of the connecting shaft.

[0017] Furthermore, the baffle is a flat plate structure.

[0018] Furthermore, the air inlet is located at the top of the shell, and when the baffle is in the transition position, the angle between the baffle and the vertical direction is greater than or equal to 10 degrees and less than or equal to 20 degrees.

[0019] Furthermore, a positioning protrusion is provided on the inner wall of the shell, and when the baffle is in the transition position, a preset part of the baffle is against the positioning protrusion; the air inlet closing device also includes a detection part, when the detection part detects that the preset part of the baffle is against the positioning protrusion, it controls at least partial movement of the switching component.

[0020] According to another aspect of the present invention, an air conditioner indoor unit is provided, comprising the above-mentioned air inlet closing device.

[0021] The air inlet closing device of the present invention includes a shell, the shell has an air inlet, and the air inlet closing device also includes a baffle, a first drive member and a drive assembly. The baffle has a closed position for closing the air inlet, a transition position, and an open position for opening the air inlet and located inside the shell. The first drive member is connected to the baffle drive so that the baffle rotates between the closed position and the transition position. The drive assembly is connected to the baffle drive so that the baffle moves back and forth between the transition position and the open position. When the air conditioner starts to operate, the baffle rotates from the closed position to the transition position under the driving action of the first drive member, and then moves from the transition position to the open position under the driving action of the drive assembly. When the baffle is in the open position, the baffle is located inside the shell and will not affect the air intake of the air inlet. The air intake will not pass through the baffle and will not cause the baffle to vibrate or make abnormal noises, thereby solving the problem of the baffle vibrating and making abnormal noises during the air intake process.

[0022] Furthermore, in order to realize the switching of the baffle between the closed position, the transition position and the open position, the air inlet closing device is provided with a first driving member and a driving assembly. The baffle is driven to rotate by the first driving member. When the first driving member drives the baffle in the closed position to rotate toward the transition position, the baffle rotates toward the outside of the shell, which does not interfere with the components in the shell and does not require space to be reserved in the shell for the movement of the baffle, thereby avoiding the shell from being too large. Furthermore, the baffle is driven to make a linear reciprocating motion between the transition position and the open position by the driving assembly, which effectively reduces the internal space of the shell. The movement space requirement is reduced, and the volume of the shell is avoided to be too large; compared with the air inlet plate driving mechanism in the background art, a separately arranged rack is used to connect with the air inlet plate, and the rack is an arc-shaped structure, and the rack is guided by an arc-shaped guide rail, which has a complex structure and occupies a large space; the air inlet closing device can realize the opening and closing of the baffle only by the first driving member and the driving assembly, and the driving structure is simple and occupies a small space; the movement trajectory of the baffle is two parts of axial movement and linear movement, which effectively reduces the movement space requirement inside the air conditioner and avoids affecting the effective heat exchange area of ​​the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 The overall schematic diagram of the air inlet plate driving structure in the background art is shown;

[0025] Figure 2 A front view showing a flap of an air inlet closing device according to the present invention in a closed position;

[0026] Figure 3 A cross-sectional view showing a baffle of an air inlet closing device according to the present invention in a closed position;

[0027] Figure 4 A partial enlarged view showing the baffle of the air inlet closing device according to the present invention in a closed position;

[0028] Figure 5 A cross-sectional view showing a baffle of an air inlet closing device according to the present invention in a transition position;

[0029] Figure 6 A partial enlarged view of the baffle of the air inlet closing device according to the present invention is shown in a transition position;

[0030] Figure 7 A cross-sectional view showing a flap of an air inlet closing device according to the present invention in an open position;

[0031] Figure 8 A cross-sectional view showing another angle of the air inlet closing device according to the present invention, wherein the baffle is in an open position;

[0032] Figure 9 A schematic diagram showing the connection between the baffle of the air inlet closing device according to the present invention and the transmission component when the baffle moves between the transition position and the open position;

[0033] Figure 10 A schematic diagram showing the cleaning member cleaning the baffle of the air inlet closing device according to the present invention when the baffle moves between the transition position and the open position.

[0034] The above drawings include the following reference numerals:

[0035] 1. Air inlet plate; 10. Housing; 11. Air inlet; 12. Positioning protrusion; 13. Air conditioning panel; 20. Baffle; 21. First transmission part; 30. First driving member; 40. Driving assembly; 41. Transmission member; 42. Transmission gear; 43. Second driving member; 44. Driving box; 50. Cleaning member; 51. Connecting shaft; 52. Brush part; 60. Dust collection box; 70. Cleaning member transmission gear; 80. Evaporator part. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] The present invention provides an air inlet closing device, please refer to Figures 2 to 10 , including a shell 10, the shell 10 has an air inlet 11, and the air inlet closing device also includes: a baffle 20, which has a closing position for closing the air inlet 11, a transition position, and an open position where the air inlet 11 is opened and located in the shell 10; a first driving member 30, which is driven and connected to the baffle 20 to rotate the baffle 20 between the closing position and the transition position; a driving assembly 40, which is driven and connected to the baffle 20 to make the baffle 20 reciprocating linear movement between the transition position and the open position.

[0040] The air inlet closing device of the present invention includes a housing 10 having an air inlet 11. The housing 10 also includes a baffle 20, a first driving member 30, and a driving assembly 40. The baffle 20 has a closed position for closing the air inlet 11, a transition position, and an open position in which the air inlet 11 is opened and located within the housing 10. The first driving member 30 is drivingly connected to the baffle 20 so as to rotate the baffle 20 between the closed position and the transition position. The driving assembly 40 is drivingly connected to the baffle 20 so as to reciprocate between the transition position and the open position. When the air conditioner starts operating, the baffle 20 rotates from the closed position to the transition position under the driving action of the first driving member 30, and then moves from the transition position to the open position under the driving action of the driving assembly 40. When the baffle 20 is in the open position, the baffle 20 is located within the housing 10 and does not affect the air entering the air inlet 11. The air entering does not pass through the baffle 20 and does not cause the baffle 20 to vibrate or make abnormal noises, thereby solving the problem of the baffle 20 vibrating and making abnormal noises during the air intake process.

[0041] Furthermore, in order to enable the baffle 20 to switch between the closed position, the transition position, and the open position, the air inlet closing device is provided with a first driving member 30 and a driving assembly 40. The baffle 20 is driven to rotate by the first driving member 30. When the first driving member 30 drives the baffle 20 in the closed position to rotate toward the transition position, the baffle 20 rotates toward the outside of the housing 10, without interfering with the components in the housing 10, and without reserving space in the housing 10 for the movement of the baffle 20, thereby avoiding the housing 10 from being too large. Furthermore, the baffle 20 is driven by the driving assembly 40 to perform a linear reciprocating motion between the transition position and the open position. , effectively reducing the movement space requirement inside the shell, avoiding the shell 10 from being too large; compared with the background technology, the air inlet plate driving mechanism adopts a separately set rack connected to the air inlet plate 1, and the rack is an arc structure, and is guided by an arc-shaped guide rail, the structure is complex, and the space is large; the air inlet closing device can realize the opening and closing of the baffle 20 only through the first driving member 30 and the driving assembly 40, the driving structure is simple, and the space is small; the baffle movement trajectory consists of two parts: axial movement and linear movement, which effectively reduces the movement space requirement inside the air conditioner and avoids affecting the effective heat exchange area of ​​the heat exchanger.

[0042] Optionally, the first driving member 30 is a driving motor.

[0043] Specifically, a rotating shaft is provided at one end of the baffle 20 , a first end of the rotating shaft is rotatably connected to the housing 10 , and a second end of the rotating shaft is connected to the first driving member 30 .

[0044] In this embodiment, the air inlet closing device further includes a switching component, at least a portion of which is movably disposed. When the baffle 20 is in the transition position, at least a portion of the switching component connects the baffle 20 to the first driving member 30 or disconnects the baffle 20 from the first driving member 30. Specifically, when the baffle 20 rotates from the closed position to the transition position, at least a portion of the switching component moves to release the rotational constraint between the baffle 20 and the first driving member 30. When the baffle 20 moves from the open position to the transition position, at least a portion of the switching component moves in the opposite direction to re-establish the rotational constraint between the baffle 20 and the first driving member 30.

[0045] Specifically, the switching component is a retaining spring. When the baffle 20 rotates from the closed position to the transition position, the retaining spring inside the first driving member 30 starts to move, and the retaining spring moves into the retaining groove of the baffle 20, opening the rotation constraint between the first driving member 30 and the baffle 20.

[0046] In this embodiment, if Figure 4 As shown, the baffle 20 has a first transmission part 21, and the first transmission part 21 includes a first transmission tooth; the driving assembly 40 includes: a transmission component 41, including a transmission gear 42, and the second transmission tooth of the transmission gear 42 is adapted to the first transmission tooth; when the baffle 20 is in the transition position, the transmission gear 42 is meshed and connected with the first transmission part 21; a second driving member 43 is drivingly connected to the transmission gear 42.

[0047] In specific implementation, by setting the first transmission part 21 and the transmission gear 42, the baffle 20 can perform reciprocating linear motion between the transition position and the open position; the setting of the second driving member 43 can make the transmission gear 42 rotate, thereby driving the first transmission part 21 to move.

[0048] Specifically, the first transmission part 21 is a rack structure, which is in contact with the edge of the baffle 20 . The first transmission part 21 is meshed with the transmission gear 42 . Driven by the transmission gear 42 , the baffle 20 switches between the transition position and the open position.

[0049] Specifically, the second driving member 43 is a driving motor.

[0050] In this embodiment, if Figure 6 As shown, the transmission component 41 includes a plurality of transmission gears 42, which are sequentially meshed and connected. The second driving member 43 is drivingly connected to one of the plurality of transmission gears 42. In practice, the sequential meshing and connection of the plurality of transmission gears 42 facilitates transmission of the first transmission portion 21, allowing the baffle 20 to more easily switch between the transition position and the open position. Furthermore, the transmission process is smoother, preventing the baffle 20 from vibrating.

[0051] Specifically, the plurality of transmission gears 42 are arranged in sequence along the vertical direction.

[0052] In this embodiment, the baffle 20 has two first transmission parts 21, located at both ends of the baffle 20. The drive assembly 40 includes two transmission components 41, one first transmission part 21 being configured for transmission connection with one of the two transmission components 41, and the other first transmission part 21 being configured for transmission connection with the other of the two transmission components 41. In practice, the separate connection between the two first transmission parts 21 and the two transmission components 41 ensures uniform force at both ends of the baffle 20, thereby preventing vibration and noise when the baffle 20 switches between the open position and the transition position.

[0053] In this embodiment, the air inlet closing device further includes: a cleaning member 50, which is rotatably arranged to clean the baffle 20 when the baffle 20 moves between the transition position and the open position; and a dust collection box 60, which is located below the cleaning member 50. Thus, the baffle 20 is cleaned by the cleaning member 50 each time the power is turned on and off, keeping it clean and tidy at all times. This prevents dust from pouring into the filter when the power baffle is open, causing the filter to become dirty and clogged. Furthermore, compared to a unidirectional brush, a rotating brush is less likely to attract dust clumps, resulting in a better cleaning effect.

[0054] During specific implementation, the cleaning member 50 is used to clean the baffle 20 , and the dust collecting box 60 is located below the cleaning member 50 and is used to receive dust after the cleaning member 50 cleans the baffle 20 .

[0055] Specifically, in order to reduce the impact of the newly added structure on the air inlet area of ​​the air inlet, the dust box 60 is a flat and long box body; wherein, the dust box 60 is installed on the air conditioning panel 13.

[0056] In this embodiment, if Figure 6 As shown, the air inlet closing device further includes: a cleaning member transmission gear 70 meshingly connected to the transmission gear 42; a second driving member 43 drivingly connected to the cleaning member transmission gear 70; and a cleaning member 50 connected to the cleaning member transmission gear 70. In specific implementations, the second driving member 43 causes the cleaning member transmission gear 70 and the transmission gear 42 to rotate together, thereby generating a transmission effect on the baffle 20 and driving the cleaning member 50 to rotate and clean the baffle 20. This arrangement can simplify the structure of the drive assembly.

[0057] In other embodiments, not shown in the figures, the air inlet closing device further includes a third driving member, which is drivably connected to the cleaning member 50. In specific implementations, the provision of the third driving member enables the cleaning member 50 to achieve a better cleaning effect on the baffle 20. Specifically, the third driving member is independently provided and can freely control the direction of rotation. During the process of the baffle 20 moving from the transition position to the open position, the baffle 20 moves downward in the vertical direction, at which time the third driving member controls the cleaning member 50 to move clockwise; during the process of the baffle 20 closing, when the baffle 20 moves upward in the vertical direction, the third driving member controls the cleaning member 50 to rotate counterclockwise; the contact surface between the baffle 20 and the cleaning member 50 generates relative movement, thereby enhancing the cleaning effect of the baffle 20.

[0058] In this embodiment, if Figure 4 As shown, the drive assembly 40 also includes a drive box 44, which is arranged on the inner wall of the shell 10, and the transmission component 41 and the cleaning member transmission gear 70 are arranged in the drive box 44; the drive box 44 has an opening, and the tooth tops of the transmission gear 42 and the tooth tops of the cleaning member transmission gear 70 pass through the opening and protrude from the drive box 44.

[0059] In specific implementation, the setting of the drive box 44 protects the transmission component 41 and the cleaning member transmission gear 70. The opening setting of the drive box 44 allows the transmission gear 42 to engage with the baffle 20 and also allows the cleaning member 50 to clean the baffle 20.

[0060] Specifically, the opening of the driving box 44 is provided on the side wall of the driving box 44 , and the opening of the driving box 44 is disposed toward the baffle 20 , and the transmission gear 42 and the cleaning member transmission gear 70 are both in contact with the baffle 20 through the opening.

[0061] In this embodiment, if Figure 4 As shown, the air inlet closing device further includes a dust box 60 located below the cleaning member 50. The bottom of the drive box 44 and the cleaning member 50 cover are disposed on the dust collection opening of the dust box 60. In practice, this arrangement prevents dust generated by the cleaning member 50 from overflowing the dust box 60 and causing contamination inside the air conditioner.

[0062] In this embodiment, the cleaning member 50 includes a connecting shaft 51 and a plurality of brushes 52, which are spirally mounted on the connecting shaft 51 along the extending direction of the connecting shaft 51. In a specific implementation, the provision of the brushes 52 improves the cleaning effect of the cleaning member 50 on the baffle 20.

[0063] Specifically, the brush portion 52 is located at the opening of the dust box 60 and protrudes 2 to 3 mm from the dust collecting port of the dust box 60 . The multiple brush portions 52 are all soft-bristled brushes, which can effectively clean the dust on the surface of the baffle 20 .

[0064] In this embodiment, the baffle 20 is a flat plate structure. This configuration saves space when the baffle 20 is in the open position and prevents the baffle 20 from entering the housing 10 and affecting the movement of other parts of the air conditioner.

[0065] In this embodiment, the air inlet 11 is located at the top of the housing 10. When the baffle 20 is in the transition position, the angle between the baffle 20 and the vertical direction is greater than or equal to 10 degrees and less than or equal to 20 degrees. In practice, this arrangement facilitates cleaning of the baffle 20 by the cleaning member 50.

[0066] In this embodiment, if Figure 5 As shown, a positioning protrusion 12 is provided on the inner wall of the housing 10. When the baffle 20 is in the transition position, a predetermined portion of the baffle 20 abuts against the positioning protrusion 12. The air inlet closing device further includes a detection member. When the detection member detects that the predetermined portion of the baffle 20 abuts against the positioning protrusion 12, it controls at least partial movement of the switching member to connect or disconnect the baffle 20 from the first driving member. The present invention also provides an air conditioner indoor unit including the air inlet closing device of the above embodiment.

[0067] Specifically, the housing 10 includes an air conditioning panel 13 . When the baffle 20 of the air inlet closing device is in the open position, the baffle 20 is located between the air conditioning panel 13 and the evaporator component 80 of the air conditioning indoor unit.

[0068] The present invention has the following invention points: the air inlet closing device mainly includes a baffle 20, a cleaning member 50, a dust box 60 and a drive assembly 40, wherein, in order to reduce the impact of the new structure on the air inlet area of ​​the air inlet 11, the dust box 60 has a flat and long structure and is installed on the air conditioning panel 13; a part of the open end of the dust box 60 contacts the bottom of the drive box 44, and a part is sealed by the cleaning member 50 to prevent dirt from overflowing. The cleaning member 50 is located at the opening of the dust box 60 and is driven by the second drive member 43. The length of the brush part 52 is 2 to 3 mm longer than the opening of the dust box 60, and a soft brush body arranged in a spiral shape is used to clean the dust on the baffle 20 to the greatest extent. In addition, compared with the unidirectional brush part 52, the rotating brush part 52 is not easy to stick to dust agglomerates, and the cleaning effect is better. When the air conditioner indoor unit is turned on, the baffle 20 opens under the action of the drive box 44. After it opens to the transition position (i.e., the angle between the baffle 20 and the vertical direction is greater than or equal to 10 degrees and less than or equal to 20 degrees, which facilitates brush cleaning of the baffle surface), the switching component changes the direction of movement to downward. The movement trajectory of the baffle 20 consists of two parts: axial movement and linear movement, effectively reducing the movement space required inside the air conditioner indoor unit and avoiding affecting the effective heat exchange area of ​​the evaporator component 80. When the switching component is activated, the cleaning member 50 begins to rotate. When the baffle 20 contacts the brush portion 52, the brush portion 52 sweeps dust off the baffle 20 and collects it in the dust collection box 60, preventing the dust from falling into the air conditioner indoor unit. At the same time, the transmission component 41 provides downward movement power to the baffle 20, also acting as a guide to prevent the baffle 20 from tilting or jamming. The transmission component 41 effectively improves the efficiency of movement, reduces the load on the second drive member 43, and improves the reliability of the moving components. The baffle 20 can be completely retracted into the back of the air conditioning panel 13 to avoid affecting the air volume, airflow operation and other aspects of the air inlet 11. At the same time, it is more beautiful and simple. The baffle 20 is close to the air conditioning panel 13 structure, and the required storage space is small, which does not affect the design and movement of other components (filter assembly, etc.). When the air conditioner is turned off, the cleaning component 50 starts the baffle 20 for a certain time T (T is greater than or equal to 3s) to sweep off the dust and water droplets that may exist on the baffle 20. The baffle 20 starts the upward movement process through the drive component 40. When it reaches the set position, the movement direction is changed by switching the components, the cleaning component 50 stops running, and the baffle 20 closes and moves toward the air inlet 11. The setting of time T can ensure that the first transmission part 21 at the end of the baffle 20 and the serrations of the cleaning component transmission gear 70 are engaged with each other to avoid the movement mechanism from getting stuck.

[0069] The present invention solves the following technical problems:

[0070] The invention solves the problem that the filter is exposed outside and the air inlet 11 cannot be closed in the prior art, and the filter is always in a dust accumulation state and difficult to clean; solves the problem that the baffle 20 used in the prior art: the filter is always in a dust accumulation state; the baffle 20 and the filter still need to be cleaned regularly; it only blocks the dust when the air conditioner is stationary; when the baffle 20 is opened, dust pouring into the filter will still cause the filter to be dirty and clogged; during the operation of the air conditioner, the baffle 20 shakes, makes abnormal noises and other reliability and comfort problems.

[0071] The present invention has the following beneficial effects:

[0072] By closing the baffle 20, when the air conditioner is not in use for a long time, the baffle 20 covers the air inlet and the filter, thereby playing a dust-proof role; by storing the baffle 20 inside the air conditioner, reliability and comfort issues such as shaking and abnormal noise of the baffle 20 during operation of the air conditioner are solved; each time the air conditioner is turned on and off, the baffle 20 is cleaned by the cleaning part 50, so that it always remains clean and tidy.

[0073] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0074] The air inlet closing device of the present invention includes a housing 10 having an air inlet 11. The housing 10 also includes a baffle 20, a first driving member 30, and a driving assembly 40. The baffle 20 has a closed position for closing the air inlet 11, a transition position, and an open position in which the air inlet 11 is opened and located within the housing 10. The first driving member 30 is drivingly connected to the baffle 20 so as to rotate the baffle 20 between the closed position and the transition position. The driving assembly 40 is drivingly connected to the baffle 20 so as to reciprocate between the transition position and the open position. When the air conditioner starts operating, the baffle 20 rotates from the closed position to the transition position under the driving action of the first driving member 30, and then moves from the transition position to the open position under the driving action of the driving assembly 40. When the baffle 20 is in the open position, the baffle 20 is located within the housing 10 and does not affect the air entering the air inlet 11. The air entering does not pass through the baffle 20 and does not cause the baffle 20 to vibrate or make abnormal noises, thereby solving the problem of the baffle 20 vibrating and making abnormal noises during the air intake process.

[0075] Furthermore, in order to enable the baffle 20 to switch between the closed position, the transition position, and the open position, the air inlet closing device is provided with a first driving member 30 and a driving assembly 40. The baffle 20 is driven to rotate by the first driving member 30. When the first driving member 30 drives the baffle 20 in the closed position to rotate toward the transition position, the baffle 20 rotates toward the outside of the housing 10, without interfering with the components in the housing 10, and without reserving space in the housing 10 for the movement of the baffle 20, thereby avoiding the housing 10 from being too large. Furthermore, the baffle 20 is driven by the driving assembly 40 to perform a linear reciprocating motion between the transition position and the open position. , effectively reducing the movement space requirement inside the shell, avoiding the shell 10 from being too large; compared with the background technology, the air inlet plate driving mechanism adopts a separately set rack connected to the air inlet plate 1, and the rack is an arc structure, and is guided by an arc-shaped guide rail, the structure is complex, and the space is large; the air inlet closing device can realize the opening and closing of the baffle 20 only through the first driving member 30 and the driving assembly 40, the driving structure is simple, and the space is small; the baffle movement trajectory consists of two parts: axial movement and linear movement, which effectively reduces the movement space requirement inside the air conditioner and avoids affecting the effective heat exchange area of ​​the heat exchanger.

[0076] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0077] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0078] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An air inlet closing device, comprising a housing (10), wherein the housing (10) has an air inlet (11), characterized in that: The air inlet closing device further comprises: a baffle (20) having a closed position for closing the air inlet (11), a transition position, and an open position for opening the air inlet (11) and being located within the housing (10); A first driving member (30) is drivingly connected to the baffle (20) to rotate the baffle (20) between the closed position and the transition position; A drive assembly (40) is drivingly connected to the baffle (20) to enable the baffle (20) to reciprocate linearly between the transition position and the open position; a switching component, at least a portion of which is movably arranged, and when the baffle (20) is in the transition position, at least a portion of which connects the baffle (20) to the first drive member (30) or separates the baffle (20) from the first drive member (30); The baffle (20) has a first transmission portion (21), the first transmission portion (21) including a first transmission tooth; the drive assembly (40) includes: A transmission component (41) includes a transmission gear (42), wherein the second transmission tooth of the transmission gear (42) is adapted to the first transmission tooth; when the baffle (20) is in the transition position, the transmission gear (42) is meshedly connected with the first transmission part (21); A second driving member (43) is drivingly connected to the transmission gear (42); The air inlet closing device further comprises: a cleaning member (50) rotatably arranged to clean the baffle (20) when the baffle (20) moves between the transition position and the open position; The dust collection box (60) is located below the cleaning member (50).

2. The air inlet closing device according to claim 1, characterized in that: The transmission component (41) includes a plurality of transmission gears (42), the plurality of transmission gears (42) are meshed and connected in sequence, and the second driving member (43) is drivingly connected to one of the plurality of transmission gears (42).

3. The air inlet closing device according to claim 1, characterized in that: The baffle (20) has two first transmission parts (21), and the two first transmission parts (21) are located at both ends of the baffle (20); the drive assembly (40) includes two transmission components (41), one first transmission part (21) is used for transmission connection with one of the two transmission components (41), and the other first transmission part (21) is used for transmission connection with the other of the two transmission components (41).

4. The air inlet closing device according to claim 1, characterized in that: The air inlet closing device further comprises a third driving member, and the third driving member is drivingly connected to the cleaning member (50).

5. The air inlet closing device according to claim 1, characterized in that: The air inlet closing device further comprises: A cleaning member transmission gear (70) is meshedly connected to the transmission gear (42), and the second driving member (43) is drivingly connected to the cleaning member transmission gear (70); The cleaning member (50) is connected to the cleaning member transmission gear (70).

6. The air inlet closing device according to claim 5, characterized in that: The driving assembly (40) further comprises a driving box (44), wherein the driving box (44) is arranged on the inner wall of the housing (10), and the transmission component (41) and the cleaning member transmission gear (70) are arranged in the driving box (44); The drive box (44) has an opening, and the tooth tops of the transmission gear (42) and the tooth tops of the cleaning member transmission gear (70) pass through the opening and protrude from the drive box (44).

7. The air inlet closing device according to claim 6, characterized in that: The air inlet closing device further comprises: The dust collecting box (60) is located below the cleaning member (50), and the bottom of the driving box (44) and the cleaning member (50) are covered on the dust collecting port of the dust collecting box (60).

8. The air inlet closing device according to claim 1, characterized in that: The cleaning member (50) comprises a connecting shaft (51) and a plurality of brush portions (52), wherein the plurality of brush portions (52) are spirally mounted on the connecting shaft (51) along an extension direction of the connecting shaft (51).

9. The air inlet closing device according to any one of claims 1 to 3, characterized in that: The baffle (20) is a flat plate structure.

10. The air inlet closing device according to any one of claims 1 to 3, characterized in that: The air inlet (11) is located at the top of the housing (10); when the baffle (20) is located at the transition position, the angle between the baffle (20) and the vertical direction is greater than or equal to 10 degrees and less than or equal to 20 degrees.

11. The air inlet closing device according to claim 1, characterized in that: A positioning protrusion (12) is provided on the inner wall of the housing (10), and when the baffle (20) is located at the transition position, a preset portion of the baffle (20) abuts against the positioning protrusion (12); the air inlet closing device further comprises a detection member, and when the detection member detects that the preset portion of the baffle (20) abuts against the positioning protrusion (12), the detection member controls at least a partial movement of the switching component.

12. An air conditioner indoor unit, characterized in that: The invention comprises the air inlet closing device according to any one of claims 1 to 11.

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