Ventilation device for air conditioner indoor unit and air conditioner indoor unit thereof

Abstract

The ventilation device comprises an air conditioner body, an air outlet is formed in one side of the air conditioner body, an air inlet is formed in the side, away from the air outlet, of the air conditioner body, and a mounting frame is connected to the air inlet in an inserted mode. The shielding mechanism has the beneficial effects that the shielding mechanism can drive the shielding curtain to be stably unfolded along the guide frame through cooperative work of components such as the driving motor, the worm and gear transmission structure and the synchronous belt transmission structure, and a complete shielding case is formed. The device has the advantages of being stable in transmission, low in noise and high in self-locking performance, parts can be prevented from being blocked during cleaning, the shielding curtain can be prevented from falling back accidentally, and operation safety is guaranteed; meanwhile, the protective net and an air flow channel in the air conditioner body can be thoroughly separated, dust generated by cleaning is prevented from entering core components, the tedious step of disassembling a shell in traditional cleaning is omitted, the operation difficulty is reduced, internal elements can be protected, faults are reduced, the service life of equipment is prolonged, and the operation efficiency of the air conditioner is maintained.

Description

Technical Field

[0001] This invention relates to the technical field of ventilation devices for air conditioning indoor units, and specifically to a ventilation device for an air conditioning indoor unit and the air conditioning indoor unit thereof. Background Technology

[0002] As the core indoor terminal equipment of a split-type air conditioning system, the indoor unit of an air conditioner has the core function of exchanging heat with indoor air and promoting air circulation through an internal ventilation device, ultimately achieving the goal of regulating indoor temperature and humidity and improving air quality. Among them, the ventilation device is the key component for achieving indoor air circulation, temperature regulation and air quality improvement. It is mainly composed of components such as a fan, fan motor, air guide module and filter module. All components work together to ensure the core performance of the indoor unit of the air conditioner.

[0003] Traditional air conditioner indoor units have significant operational challenges in the air inlet cleaning process: the protective mesh at the air inlet must be removed first, and then cleaned separately. This process not only leads to problems such as "difficult dust collection, dirty hands, and the need for disassembly"—dust on the protective mesh is easily scattered during disassembly, and manual reinstallation after cleaning easily exposes the mesh to dust; it also has the disadvantage of being time-consuming. Furthermore, the disassembly and installation operations require a certain level of operational space and skill from the staff, making it difficult to efficiently complete the air inlet protective mesh cleaning operation.

[0004] Therefore, how to design a new ventilation device for air conditioning indoor units and the air conditioning indoor unit itself is a technical problem that technicians need to solve. Summary of the Invention

[0005] The purpose of this invention is to provide a ventilation device for an indoor air conditioning unit and the indoor air conditioning unit thereof, so as to solve the problems in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A ventilation device for an indoor unit of an air conditioner includes an air conditioner body, an air outlet on one side of the air conditioner body, an air inlet on the side of the air conditioner body away from the air outlet, a mounting bracket inserted into the air inlet, and a protective net fixedly installed on the mounting bracket; a shielding mechanism installed inside the air conditioner body near the mounting bracket, a cleaning mechanism slidably connected to one side of the shielding mechanism, and the shielding mechanism and the cleaning mechanism being connected by a transmission mechanism, with both ends of the transmission mechanism connected to the shielding mechanism and the cleaning mechanism respectively; the shielding mechanism includes guide brackets symmetrically fixedly installed inside the air conditioner body, a worm gear transmission structure fixedly installed inside the top of the air conditioner body, a drive motor fixedly installed on one side of the worm gear transmission structure, and the output end of the drive motor fixedly connected to the input end of the worm gear transmission structure.

[0007] Furthermore, the shielding mechanism also includes a fixed frame that is fixedly installed inside the air conditioner body. A transmission rod is rotatably connected in the middle of the fixed frame. One end of the transmission rod extends to the outside of the fixed frame and is fixedly connected to one end of the synchronous belt transmission structure. The other end of the synchronous belt transmission structure is fixedly connected to the output end of the worm gear transmission structure. A shielding curtain is slidably connected between two guide frames. A connecting block is fixedly installed on one side of the shielding curtain, and the connecting block is threadedly connected to the transmission rod. Restricting slide rods are symmetrically fixedly installed between the fixed frames. The restricting slide rods slide in cooperation with the shielding curtain, and protrusions that slide in cooperation with the restricting slide rods are symmetrically opened on one side of the shielding curtain.

[0008] Furthermore, the shielding curtain is composed of several arc-shaped plates that slide end to end, and the shielding curtain cooperates with the air inlet after it is unfolded.

[0009] Furthermore, the cleaning mechanism includes a mounting base slidably connected to one side of the guide frame, a cleaning belt rotatably connected to one side of the mounting base, cleaning rollers rotatably connected at equal intervals inside the mounting base, several drive motors fixedly mounted at equal intervals at the bottom end of the mounting base, and the output ends of the drive motors passing through the side wall of the mounting base and fixedly connected to one end of the cleaning rollers. Connecting pipes are symmetrically fixedly mounted at the bottom end of the mounting base, and a dust collection device is fixedly mounted at the bottom end inside the air conditioner body. One end of the connecting pipe is fixedly connected to the input end of the dust collection device, and a dust box is slidably connected to the end of the dust collection device away from the connecting pipe, and the dust box is slidably connected to the bottom end of the air conditioner body.

[0010] Furthermore, both the mounting base and the cleaning belt are arranged in an arc shape to cooperate with the protective net. The two sides of the cleaning roller are symmetrically provided with cleaning rods for cleaning the surface of the cleaning roller. The bottom of the mounting base is provided with an extension block for connecting pipe fittings.

[0011] Furthermore, the transmission mechanism includes a fixed cylinder fixedly installed on one side of the fixed frame. A piston is slidably connected inside the fixed cylinder. A connecting rod is slidably connected to the top of the fixed cylinder, and one end of the connecting rod passes through the side wall of the fixed cylinder and is fixedly connected to the top of the piston. An auxiliary spring is provided at the top of the piston, and the auxiliary spring is sleeved on the bottom end of the connecting rod. The end of the connecting rod away from the piston is sleeved on the outside of the transmission rod. A pressing seat is rotatably connected to the bottom end of the connecting rod away from the piston, and the pressing seat is slidably sleeved on the bottom end of the transmission rod. A mating seat is rotatably connected to the center of the bottom end of the fixed frame. A fixed bracket is fixedly installed inside the bottom of the air conditioner body, and a transmission gear set is rotatably connected to the fixed bracket. The end of the mating seat away from the pressing seat passes through the side wall of the fixed bracket and is fixedly connected to one end of the transmission gear set. A rotating rod is fixedly installed at the end of the transmission gear set away from the mating seat. A stabilizing frame is fixedly installed inside the top of the air conditioner body. The end of the rotating rod away from the transmission gear set is rotatably connected to the stabilizing frame. An extension frame is threadedly connected to the rotating rod.

[0012] Furthermore, the transmission gear set consists of two gears, a large gear and a small gear. The large gear is fixedly connected to the mating seat, and the small gear is fixedly connected to the rotating rod. The transmission ratio between the large gear and the small gear is 1:2.

[0013] Furthermore, fixed blocks are fixedly installed at equal intervals in a ring at the bottom of the inner cavity of the fixed cylinder. Each fixed block is fixedly installed with a push rod. Several push rods are inserted into the piston. Several elastic arms are provided at the top of the push rod. The end of the elastic arm away from the push rod is fixedly connected to the outer ring of the elastic top plate. The top of the elastic top plate is pressed into the piston.

[0014] Furthermore, the piston has several irregularly shaped guide holes arranged in a ring at equal intervals, and the diameter of the upper end of the irregularly shaped guide hole is three times the diameter of the lower end.

[0015] The present invention also provides an air conditioning indoor unit, including the ventilation device of the above-mentioned air conditioning indoor unit.

[0016] The technical solution provided by this invention may include the following beneficial effects: 1. In this example, the beneficial effects of the shielding mechanism: The shielding mechanism, through the coordinated operation of components such as the drive motor, worm gear transmission structure, and synchronous belt transmission structure, can drive the shielding curtain to unfold smoothly along the guide frame, forming a complete shielding cover. It features smooth transmission, low noise, and strong self-locking capabilities, preventing component jamming and accidental curtain descent during cleaning, ensuring operational safety. Simultaneously, it completely isolates the protective net from the internal airflow channels of the air conditioner body, preventing dust generated during cleaning from entering core components. This eliminates the cumbersome step of disassembling the outer casing required for traditional cleaning, reducing operational difficulty, protecting internal components, reducing malfunctions, extending equipment lifespan, and maintaining air conditioner operating efficiency.

[0017] 2. In this example, the flexible brush on the surface of the cleaning belt of the cleaning mechanism rotates in close contact with the protective net, and the natural shaking breaks the dust adhesion, avoiding hard scraping damage to the protective net and removing stubborn dust, thus improving cleaning efficiency; the cleaning roller inside the mounting base can clean the dust on the surface of the cleaning belt in time to prevent secondary pollution; the dust collection device is connected to the mounting base through the connecting pipe, and combined with the cleaning belt through the groove, it can quickly suck up suspended and fallen dust to prevent it from spreading; the detachable dust box makes it easy to collect and empty the dust without contact with the dust, realizing a closed loop of "cleaning-removal-dust collection", ensuring the cleanliness of the protective net, maintaining air intake efficiency, reducing dust corrosion of internal components, and creating a healthy and convenient operating environment.

[0018] 3. In this example, the transmission mechanism uses components such as a fixed cylinder, piston, connecting rod, and transmission gear set to achieve power transmission and reset control. During cleaning, hydraulic oil is compressed to transmit stable pressure, the auxiliary spring stores potential energy, and the elastic top plate buffers the impact force. During reset, the auxiliary spring and elastic top plate drive the piston to reset, and the irregular guide hole forms a damping effect, slowing down the rising speed of the connecting rod and avoiding component collisions and noise. At the same time, the 1:2 transmission ratio of the transmission gear set ensures that the shielding mechanism and the cleaning mechanism reset synchronously without manual adjustment, improving the automation and efficiency of the equipment.

[0019] 4. In this example, the various mechanisms work together precisely to achieve a fully automated process for cleaning the protective net. The shielding mechanism first isolates the dust, the cleaning mechanism efficiently removes the dust, and the transmission mechanism ensures that the two actions are synchronized. The "shielding-cleaning-resetting" operation can be completed without manual intervention, solving the pain points of traditional air conditioner cleaning such as "difficult dust collection, dirty hands, and the need for disassembly". Details such as the arc-shaped mounting base and cleaning belt, and the equidistantly spaced cleaning rollers and cleaning rods ensure thorough cleaning and long-lasting cleanliness of components. The overall design reduces dust damage to the air conditioner's interior, lowers the risk of failure, extends equipment life, and maintains good cooling / heating and ventilation effects, providing users with a convenient, hygienic, and efficient user experience.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a first-view schematic diagram of the overall device structure of the present invention; Figure 2 This is a second perspective view of the overall device structure of the present invention; Figure 3 This is a first-view schematic diagram of the internal partial structure of the present invention; Figure 4 This is a second perspective view of a schematic diagram of the internal partial structure of the present invention; Figure 5 This is a schematic diagram of the shielding mechanism structure of the present invention; Figure 6 This is a first-view schematic diagram of the cleaning mechanism structure of the present invention; Figure 7 This is a second perspective view of the cleaning mechanism structure of the present invention; Figure 8 This is a third-view schematic diagram of the cleaning mechanism structure of the present invention; Figure 9 This is a fourth-angle view of the transmission mechanism structure of the present invention; Figure 10 This is a fifth-angle view of the transmission mechanism structure of the present invention; Figure 11 This is a sixth-angle view of the transmission mechanism structure of the present invention.

[0023] In the diagram: 1. Air conditioner body; 2. Air outlet; 3. Air inlet; 4. Mounting bracket; 5. Protective net; 6. Shielding mechanism; 7. Cleaning mechanism; 8. Transmission mechanism; 9. Guide frame; 10. Worm gear transmission structure; 11. Drive motor; 12. Synchronous belt transmission structure; 13. Fixing bracket; 14. Transmission rod; 15. Shielding curtain; 16. Connecting block; 17. Limiting slide bar; 18. Mounting base; 19. Cleaning belt; 20. Cleaning... 21. Roller; 22. Drive motor; 23. Cleaning rod; 24. Connecting pipe; 25. Dust collection device; 26. Dust box; 27. Fixed cylinder; 28. Piston; 29. ​​Connecting rod; 30. Auxiliary spring; 31. Extrusion seat; 32. Matching seat; 33. Transmission gear set; 34. Fixed bracket; 35. Top rod; 36. Elastic top plate; 37. Irregular guide hole; 38. Rotating rod; 39. Stabilizing frame; 40. Extension frame. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention. Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the invention more thorough and complete, and to fully convey the scope of the invention to those skilled in the art.

[0025] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] The technical solution of the present invention (Embodiment 1) is described in detail below with reference to the accompanying drawings.

[0028] See Figures 1 to 11 The ventilation device for an indoor air conditioning unit specifically includes: an air conditioning body 1, with an air outlet 2 on one side and an air inlet 3 on the side of the air conditioning body 1 away from the air outlet 2, a mounting bracket 4 inserted into the air inlet 3, and a protective net 5 fixedly installed on the mounting bracket 4; a shielding mechanism 6, installed inside the air conditioning body 1 near the mounting bracket 4, with a cleaning mechanism 7 slidably connected to one side of the shielding mechanism 6, and the shielding mechanism 6 and the cleaning mechanism 7 being connected by a transmission mechanism 8, with both ends of the transmission mechanism 8 connected to the shielding mechanism 6 and the cleaning mechanism 7 respectively; the shielding mechanism 6 includes guide brackets 9 symmetrically fixedly installed inside the air conditioning body 1, a worm gear transmission structure 10 fixedly installed inside the top of the air conditioning body 1, a drive motor 11 fixedly installed on one side of the worm gear transmission structure 10, and the output end of the drive motor 11 fixedly connected to the input end of the worm gear transmission structure 10.

[0029] Specifically, the shielding mechanism 6 further includes a fixed frame 13 fixedly installed inside the air conditioner body 1. A transmission rod 14 is rotatably connected to the middle of the fixed frame 13. One end of the transmission rod 14 extends to the outside of the fixed frame 13 and is fixedly connected to one end of the synchronous belt transmission structure 12. The other end of the synchronous belt transmission structure 12 is fixedly connected to the output end of the worm gear transmission structure 10. A shielding curtain 15 is slidably connected between the two guide frames 9. A connecting block 16 is fixedly installed on one side of the shielding curtain 15, and the connecting block 16 is threadedly connected to the transmission rod 14. Restricting slide rods 17 are symmetrically fixedly installed between the fixed frames 13. The restricting slide rods 17 are slidably engaged with the shielding curtain 15, and a protrusion is symmetrically provided on one side of the shielding curtain 15 to slidably engage with the restricting slide rod 17.

[0030] Specifically, the shielding curtain 15 is composed of several arc-shaped plates that are slidably connected end to end, and the shielding curtain 15 cooperates with the air inlet 3 after it is unfolded.

[0031] Specifically, the cleaning mechanism 7 includes a mounting base 18 slidably connected to one side of the guide frame 9. A cleaning belt 19 is rotatably connected to one side of the mounting base 18. Cleaning rollers 20 are equidistantly rotatably connected inside the mounting base 18. A plurality of drive motors 21 are fixedly mounted at equal intervals at the bottom end of the mounting base 18, and the output end of the drive motor 21 passes through the side wall of the mounting base 18 and is fixedly connected to one end of the cleaning roller 20. Connecting pipes 23 are symmetrically fixedly mounted at the bottom end of the mounting base 1. A dust collection device 24 is fixedly mounted inside the bottom end of the air conditioner body 1. One end of the connecting pipe 23 is fixedly connected to the input end of the dust collection device 24. A dust box 25 is slidably connected to the end of the dust collection device 24 away from the connecting pipe 23, and the dust box 25 is slidably connected to the bottom end of the air conditioner body 1.

[0032] Specifically, the mounting base 18 and the cleaning belt 19 are both arranged in an arc shape to cooperate with the protective net 5. The two sides of the cleaning roller 20 are symmetrically provided with cleaning rods 22 for cleaning the surface of the cleaning roller 20. The bottom end of the mounting base 18 is provided with an extension block for connecting fittings to the connecting pipe 23.

[0033] Specifically, the transmission mechanism 8 includes a fixed cylinder 26 fixedly mounted on one side of the fixed frame 13. A piston 27 is slidably connected inside the fixed cylinder 26. A connecting rod 28 is slidably connected to the top of the fixed cylinder 26, and one end of the connecting rod 28 passes through the side wall of the fixed cylinder 26 and is fixedly connected to the top of the piston 27. An auxiliary spring 29 is provided at the top of the piston 27, and the auxiliary spring 29 is sleeved on the bottom end of the connecting rod 28. The end of the connecting rod 28 away from the piston 27 is sleeved on the outside of the transmission rod 14. The bottom end of the connecting rod 28 away from the piston 27 is rotatably connected to a pressing seat 30, and the pressing seat 30 is slidably sleeved on the transmission rod 14. At the bottom, a mating seat 31 is rotatably connected to the center of the bottom of the fixed bracket 13. A fixed bracket 33 is fixedly installed inside the bottom of the air conditioner body 1, and a transmission gear set 32 ​​is rotatably connected to the fixed bracket 33. The end of the mating seat 31 away from the pressing seat 30 passes through the side wall of the fixed bracket 33 and is fixedly connected to one end of the transmission gear set 32. A rotating rod 38 is fixedly installed at the end of the transmission gear set 32 ​​away from the mating seat 31. A stabilizing bracket 39 is fixedly installed at the top of the inside of the air conditioner body 1. The end of the rotating rod 38 away from the transmission gear set 32 ​​is rotatably connected to the stabilizing bracket 39. An extension bracket 40 is threadedly connected to the rotating rod 38.

[0034] Specifically, the transmission gear set 32 ​​consists of two gears, a large gear and a small gear. The large gear is fixedly connected to the mating seat 31, and the small gear is fixedly connected to the rotating rod 38. The transmission ratio between the large gear and the small gear is 1:2.

[0035] Specifically, a fixing block 34 is fixedly installed at an equidistant ring at the bottom of the inner end of the fixing cylinder 26. A top rod 35 is fixedly installed at the top of each fixing block 34. Several top rods 35 are inserted into the piston 27. Several elastic arms are provided at the top of the top rod 35. The end of the elastic arm away from the top rod 35 is fixedly connected to the outer ring of the elastic top plate 36. The top of the elastic top plate 36 is pressed into the piston 27.

[0036] Specifically, the piston 27 has a plurality of irregularly shaped guide holes 37 arranged in an annular pattern at equal intervals, and the diameter of the upper end of the irregularly shaped guide hole 37 is three times the diameter of the lower end.

[0037] In this embodiment, when cleaning dust from the protective mesh 5, how to prevent the cleaned dust from entering the interior of the device is addressed in the following reference. Figures 1 to 5 The specific implementation method is as follows: When cleaning the air conditioner protective net 5, the equipment will automatically start the protective shielding process: First, the drive motor 11 drives the worm gear transmission structure 10 to operate. The worm gear transmission structure 10 has the advantages of smooth transmission, low noise, and strong self-locking, which can effectively avoid component jamming caused by power fluctuations during the cleaning process, and at the same time prevent the shielding curtain 15 from falling back unexpectedly, improving operational safety. The worm gear transmission structure 10 transmits power to the synchronous belt transmission structure 12. Through the efficient transmission characteristics of the synchronous belt, the transmission rod 14 is driven to rotate quickly and uniformly. During this process, the transmission rod 14 and the connecting block 16 form a stable cooperation, synchronously pulling the shielding curtain 15 vertically downward along the guide frame 9. The guiding design of the guide frame 9 ensures that the shielding curtain 15 does not shift or wrinkle during unfolding, guaranteeing the shielding seal. Since one end of the shielding curtain 15 is fixedly connected to the guide frame 9, as the transmission rod 14 continues to rotate, the shielding curtain 15 will gradually unfold completely between the guide frames 9, eventually forming a complete shielding cover. This completely isolates the airflow channel between the protective net 5 and the air conditioner body 1, preventing dust and impurities generated during cleaning from entering the core components inside the air conditioner. This not only eliminates the tedious steps of disassembling the air conditioner casing during traditional cleaning, reducing the difficulty of operation, but also effectively protects the internal components of the air conditioner from dust contamination, reduces the failure rate, and extends the service life of the equipment. At the same time, it ensures that the cooling / heating efficiency of the air conditioner is not affected after cleaning, maintaining a good user experience.

[0038] In this embodiment, since the devices are all installed in indoor corners, cleaning the protective netting 5 requires rotating the device. However, the device itself is heavy and easily rotated, making dust removal from the protective netting 5 difficult. Therefore, the device is equipped with a cleaning mechanism 7 for automatically cleaning the protective netting 5. (Refer to...) Figure 6 and Figure 7The specific implementation method is as follows: When it is necessary to clean the air conditioner protective net 5, firstly, the cleaning belt 19 starts to rotate continuously and stably, and its surface is closely attached to the surface of the protective net 5 to ensure that there are no dead corners in the cleaning. The surface of the cleaning belt 19 is specially equipped with flexible brushes. During the contact and friction between the brushes and the protective net 5, a slight vibration will naturally be generated. This vibration can effectively break the adhesion between the dust and the surface of the protective net 5, which not only avoids the damage to the protective net 5 caused by traditional hard scraping cleaning, but also can penetrate into the mesh gaps to remove stubborn dust, thereby improving cleaning efficiency. In order to avoid secondary pollution caused by dust carried by the cleaning belt 19, multiple sets of cleaning rollers 20 are set inside the mounting base 18 at equal intervals. All cleaning rollers 20 are synchronously driven by the drive motor 21. The fine bristles on the surface of the cleaning rollers 20 will form reverse friction with the rotating cleaning belt 19, quickly peel off the dust attached to the surface of the cleaning belt 19, and make it fall accurately into the dust collection area at the bottom of the mounting base 18, ensuring that the cleaning belt 19 always remains clean. While providing efficient cleaning, the vacuuming device 24 is also fixedly connected to the mounting base 18 via a sealed connecting pipe 23, maintaining high negative pressure throughout the process. Notably, the equally spaced channels on the cleaning belt 19 directly guide suspended dust raised during cleaning into the suction channel, preventing dust from spreading into the air conditioner or into the air. Dust collected at the bottom of the mounting base 18 is also sucked in by the vacuuming device 24 and transported to the removable dust box 25. Users can easily empty the dust box 25 without disassembling the equipment or coming into contact with the dust, making the operation convenient and hygienic. This completely solves the pain points of traditional air conditioner cleaning, such as "difficult to collect dust and easy to get hands dirty." Through the closed-loop design of the entire process of "cleaning - removing impurities - vacuuming - collecting dust," it not only ensures the long-term cleanliness of the protective net 5 and maintains the air conditioner's air intake efficiency, but also reduces the corrosion of the internal circuits and heat exchangers by dust, reducing the risk of equipment failure. At the same time, it avoids dust pollution during the cleaning process, creating a healthy and convenient user environment.

[0039] In this embodiment, to ensure smooth operation of the device during cleaning, the shielding mechanism 6 and the cleaning mechanism 7 are connected by a transmission mechanism 8, reducing the number of operation steps and making the device more convenient to use. (Refer to...) Figures 7 to 11The specific implementation method is as follows: When the device enters the operating state and triggers the cleaning process of the protective net 5, firstly, the connecting block 16 moves steadily downward along the transmission rod 14. Its descent trajectory precisely matches the guide path of the transmission rod 14 to ensure no deviation or jamming. When the connecting block 16 descends to the bottom of the transmission rod 14, it will precisely act on the connecting rod 28 and apply downward squeezing force. As the connecting rod 28 is squeezed and displaced downward, it will synchronously drive the squeezing seat 30 and the piston 27 to move in the same direction, and finally make the squeezing seat 30 smoothly press into the mating seat 31. During this process, the mating surfaces of the squeezing seat 30 and the mating seat 31 drive the mating seat 31 to rotate around the axis through friction. Since the mating seat 31 and the transmission gear set 32 ​​are fixedly connected, the rotational torque of the mating seat 31 is directly transmitted to the transmission gear set 32, driving the entire gear set to operate efficiently. The power of the transmission gear set 32 ​​is transmitted to the rotating rod 38, realizing the synchronous rotation of the rotating rod 38 and the mating seat 31, avoiding the action delay caused by power loss. The rotating rod 38 and the extension frame 40 are meshed. The rotation of the rotating rod 38 is converted into the linear upward motion of the extension frame 40, which in turn drives the mounting seat 18 connected to the extension frame 40 to rise smoothly. As the mounting seat 18 rises into place, the cleaning mechanism 7 mounted on it will synchronously follow and clean the surface of the protective net 5, greatly improving the operating efficiency.

[0040] Of particular note is that the compression seat 30 and the mating seat 31 adopt a "compression fit + reserved displacement" design: the reserved displacement can buffer the impact force when the connecting block 16 is pressed down, and avoid damage to the parts due to rigid collision. In addition, the reserved displacement design allows the connecting block 16 to continue to descend a certain distance so as to drive the cleaning mechanism 7 to perform cleaning movement.

[0041] It should be noted that the bottom end of the transmission rod 14 has a hexagonal shape that slides with the extrusion seat 30, which is used to drive the extrusion seat 30 to rotate stably.

[0042] In this embodiment, after one cleaning cycle, each mechanism begins to reset, as described above. Figure 8 , Figure 9 and Figure 10The specific implementation method is as follows: During the continuous cleaning operation of the protective net 5, the connecting block 16 applies a continuous and stable compressive force to the connecting rod 28, driving the connecting rod 28 to press down at a uniform speed along a preset trajectory. During this process, the connecting rod 28 and the piston 27 form a rigid linkage, synchronously driving the piston 27 to move downward. The downward movement of the piston 27 directly compresses the hydraulic oil in the cavity of its fixed cylinder 26. At the same time, the piston 27 and the top rod 35 achieve precise insertion and cooperation. After the two are combined, they together with the elastic top plate 36 to form a closed chamber with excellent sealing performance. This closed design can prevent hydraulic oil leakage, ensure pressure transmission efficiency, and prevent power loss caused by oil loss, thereby ensuring that the cleaning mechanism 7 always maintains a stable cleaning force. In addition, when the piston 27 moves downward, it will simultaneously stretch the auxiliary spring 29 and press down the elastic top plate 36: the auxiliary spring 29 During this stage, elastic potential energy is stored. The elastic deformation of the elastic top plate 36 can buffer the downward impact force of the piston 27. After the cleaning operation is completed, the connecting block 16 returns to its original position along the transmission rod 14, and the downward pressure on the connecting rod 28 disappears. At this time, the elastic potential energy stored in the auxiliary spring 29 begins to be released. Together with the rebound force of the elastic top plate 36, it drives the piston 27 to rise and return to its original position smoothly. As the piston 27 rises, it gradually separates from the top rod 35, the closed chamber is opened, and the hydraulic oil in the chamber is slowly discharged through the irregular guide hole 37. The irregular guide hole 37 adopts a variable diameter channel design, which generates controllable resistance when hydraulic oil flows through it. This creates a stable damping effect during the piston 27 reset process, slowing down the rising speed of the connecting rod 28 and preventing the cleaning mechanism 7 from losing driving force during reset due to excessively fast reset. It should be noted that the slow reset under damping ensures that the extrusion seat 30 and the mating seat 31 maintain a stable extrusion mating state during the reset of the shielding mechanism 6. The mating seat 31 then continuously drives the transmission gear set 32 ​​to rotate. After the transmission gear set 32 ​​transmits power to the rotating rod 38, it drives the rotating rod 38 to rotate in the opposite direction, ultimately driving the cleaning mechanism 7 and the shielding mechanism 6 to reset synchronously. This ensures that the device can immediately enter the standby state after reset without manual adjustment of alignment, greatly improving the efficiency and automation level of the equipment.

[0043] It should be noted that the device can activate the cleaning mode according to actual usage needs, which can quickly clean the protective net 5, increase the cleanliness of the device during operation, avoid manual cleaning, and further improve the convenience and cleanliness of the device during operation.

[0044] The present invention also provides an air conditioning indoor unit, including the ventilation device of the above-mentioned air conditioning indoor unit.

[0045] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the embodiments of the present invention can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the embodiments of the present invention can be combined, divided, and deleted according to actual needs.

[0046] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A ventilation device for an indoor unit of an air conditioner, characterized in that, include: An air conditioner body (1) is provided with an air outlet (2) on one side and an air inlet (3) on the side of the air conditioner body (1) away from the air outlet (2). A mounting bracket (4) is inserted into the air inlet (3) and a protective net (5) is fixedly installed on the mounting bracket (4). The shielding mechanism (6) is installed inside the air conditioner body (1) on the side near the mounting bracket (4). A cleaning mechanism (7) is slidably connected to one side of the shielding mechanism (6). The shielding mechanism (6) and the cleaning mechanism (7) are connected by a transmission mechanism (8), and both ends of the transmission mechanism (8) are connected to the shielding mechanism (6) and the cleaning mechanism (7) respectively. The shielding mechanism (6) includes a guide frame (9) symmetrically fixedly installed inside the air conditioner body (1). A worm gear transmission structure (10) is fixedly installed inside the top of the air conditioner body (1). A drive motor (11) is fixedly installed on one side of the worm gear transmission structure (10), and the output end of the drive motor (11) is fixedly connected to the input end of the worm gear transmission structure (10).

2. A ventilation device for an indoor unit of an air conditioner according to claim 1, characterized in that: The shielding mechanism (6) also includes a fixed frame (13) fixedly installed inside the air conditioner body (1). A transmission rod (14) is rotatably connected in the middle of the fixed frame (13). One end of the transmission rod (14) extends to the outside of the fixed frame (13) and is fixedly connected to one end of the synchronous belt transmission structure (12). The other end of the synchronous belt transmission structure (12) is fixedly connected to the output end of the worm gear transmission structure (10). A shielding curtain (15) is slidably connected between the two guide frames (9). A connecting block (16) is fixedly installed on one side of the shielding curtain (15). The connecting block (16) is threadedly connected to the transmission rod (14). A limiting slide rod (17) is symmetrically fixedly installed between the fixed frames (13). The limiting slide rod (17) is slidably engaged with the shielding curtain (15). A protrusion that is symmetrically opened on one side of the shielding curtain (15) and slidably engaged with the limiting slide rod (17) is provided.

3. A ventilation device for an indoor unit of an air conditioner according to claim 2, characterized in that: The shielding curtain (15) is composed of several arc-shaped plates that are slidably connected end to end. After the shielding curtain (15) is unfolded, it cooperates with the air inlet (3).

4. A ventilation device for an indoor unit of an air conditioner according to claim 3, characterized in that: The cleaning mechanism (7) includes a mounting base (18) slidably connected to one side of the guide frame (9). A cleaning belt (19) is rotatably connected to one side of the mounting base (18). A cleaning roller (20) is rotatably connected at equal intervals inside the mounting base (18). Several drive motors (21) are fixedly installed at equal intervals at the bottom end of the mounting base (18). The output end of the drive motor (21) passes through the side wall of the mounting base (18) and is fixedly connected to one end of the cleaning roller (20). A connecting pipe (23) is symmetrically fixedly installed at the bottom end of the mounting base (1). A dust collection device (24) is fixedly installed at the bottom end inside the air conditioner body (1). One end of the connecting pipe (23) is fixedly connected to the input end of the dust collection device (24). A dust box (25) is slidably connected to the end of the dust collection device (24) away from the connecting pipe (23). The dust box (25) is slidably connected to the bottom end of the air conditioner body (1).

5. A ventilation device for an indoor unit of an air conditioner according to claim 4, characterized in that: The mounting base (18) and the cleaning belt (19) are both arranged in an arc shape to cooperate with the protective net (5). The cleaning roller (20) is symmetrically provided with cleaning rods (22) on both sides for cleaning the surface of the cleaning roller (20). The bottom end of the mounting base (18) is provided with an extension block for connecting pipe (23) connecting fittings.

6. A ventilation device for an indoor unit of an air conditioner according to claim 5, characterized in that: The transmission mechanism (8) includes a fixed cylinder (26) fixedly installed on one side of the fixed frame (13). A piston (27) is slidably connected inside the fixed cylinder (26). A connecting rod (28) is slidably connected to the top of the fixed cylinder (26), and one end of the connecting rod (28) passes through the side wall of the fixed cylinder (26) and is fixedly connected to the top of the piston (27). An auxiliary spring (29) is provided at the top of the piston (27), and the auxiliary spring (29) is sleeved on the bottom end of the connecting rod (28). The end of the connecting rod (28) away from the piston (27) is sleeved on the outside of the transmission rod (14). The bottom end of the connecting rod (28) away from the piston (27) is rotatably connected to a pressing seat (30), and the pressing seat (30) is slidably sleeved on the transmission rod (14). At the bottom, a mating seat (31) is rotatably connected to the center of the bottom of the fixed frame (13). A fixed bracket (33) is fixedly installed inside the bottom of the air conditioner body (1), and a transmission gear set (32) is rotatably connected to the fixed bracket (33). The end of the mating seat (31) away from the pressing seat (30) passes through the side wall of the fixed bracket (33) and is fixedly connected to one end of the transmission gear set (32). A rotating rod (38) is fixedly installed at the end of the transmission gear set (32) away from the mating seat (31). A stabilizing frame (39) is fixedly installed at the top of the inside of the air conditioner body (1). The end of the rotating rod (38) away from the transmission gear set (32) is rotatably connected to the stabilizing frame (39). An extension frame (40) is threaded onto the rotating rod (38).

7. A ventilation device for an indoor unit of an air conditioner according to claim 6, characterized in that: The transmission gear set (32) consists of two gears, a large gear and a small gear. The large gear is fixedly connected to the mating seat (31), and the small gear is fixedly connected to the rotating rod (38). The transmission ratio between the large gear and the small gear is 1:

2.

8. A ventilation device for an indoor unit of an air conditioner according to claim 7, characterized in that: The bottom of the fixed cylinder (26) is fixedly installed with fixed blocks (34) at equal intervals in a ring. The top of each fixed block (34) is fixedly installed with a push rod (35). Several push rods (35) are inserted into the piston (27). The top of the push rod (35) is provided with several elastic arms. The end of the elastic arm away from the push rod (35) is fixedly connected to the outer ring of the elastic top plate (36). The top of the elastic top plate (36) is pressed into the piston (27).

9. A ventilation device for an indoor unit of an air conditioner according to claim 8, characterized in that: The piston (27) has a number of irregularly shaped guide holes (37) arranged in an annular shape at equal intervals, and the diameter of the upper port of the irregularly shaped guide hole (37) is three times the diameter of the lower port.

10. An indoor air conditioning unit, applicable to the ventilation device for an indoor air conditioning unit as described in any one of claims 1-9.

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