An air outlet device

Abstract

The application provides an air outlet device, and relates to the technical field of vehicle-mounted equipment. The air outlet device comprises a blade string, a driving mechanism and a clutch mechanism. The blade string comprises a plurality of blade units. The driving mechanism is used for driving the overall rotation of the blade string or the relative rotation between at least two blade units in the plurality of blade units. The clutch mechanism has a coupling state and a decoupling state. When the clutch mechanism is in the coupling state, the clutch mechanism applies a locking force to one end of the blade string, and the driving mechanism applies a driving force to the other end of the blade string, so that the relative rotation between at least two blade units in the plurality of blade units occurs. When the clutch mechanism is in the decoupling state, the driving mechanism drives the overall rotation of the blade string. When the clutch mechanism is in the coupling state, the locking force is smaller than the driving force. By arranging the clutch mechanism, the blade string avoids the torsional deformation, impact and noise caused by the excessive rotation or insufficient rotation of the switching angle during the switching process.

Description

Technical Field

[0001] This application relates to the field of vehicle-mounted equipment technology, and more specifically, to an air outlet device. Background Technology

[0002] With the continuous improvement of automotive intelligence, the comfort and quietness of in-vehicle air conditioning systems have become key concerns for users. As an important component of the air conditioning system, the angle adjustment of the blade string directly affects the airflow direction and air volume distribution. The blade string usually consists of multiple blades, and its angle is adjusted by a motor.

[0003] In practical applications, the air outlet device needs to reset the blades to the natural wind state. This is usually done by using a motor with stall torque. Since the current state of the blades is uncertain, the stall torque is usually used to calibrate the motor. The stall torque is transmitted between the blades, clutch mechanism and housing. Because the dimensional chain of these parts is very long, excessive motor torque may cause these parts to undergo torsional deformation and generate torsional force on the blades. When this torsional force is released, the blades will collide and generate noise. Utility Model Content

[0004] The purpose of this application includes, for example, providing an air outlet device in which the parts are not easily subjected to torsional deformation, impact, or noise.

[0005] The embodiments of this application can be implemented as follows:

[0006] An embodiment of this application provides an air outlet device, which includes:

[0007] A blade string, wherein the blade string comprises multiple blade units;

[0008] A drive mechanism is provided for driving the blade string to rotate as a whole, or driving at least two blade units among the plurality of blade units to rotate relative to each other.

[0009] The clutch mechanism has a coupled state and a decoupled state. When the clutch mechanism is in the coupled state, it applies a locking force to one end of the blade string, and the driving mechanism applies a driving force to the other end of the blade string, so that at least two blade units among the plurality of blade units rotate relative to each other. When the clutch mechanism is in the decoupled state, the driving mechanism drives the blade string to rotate as a whole.

[0010] When the clutch mechanism is in a coupled state, the locking force is less than the driving force.

[0011] Optionally, the plurality of blade units include an active blade, at least one intermediate blade, and a control blade arranged in sequence;

[0012] The drive mechanism is connected to the active blade to drive the active blade to rotate;

[0013] When the clutch mechanism is in a coupled state, the clutch mechanism applies the locking force to the control blade, and the drive mechanism applies the driving force to the active blade.

[0014] Optionally, when the clutch mechanism is in a coupled state, the locking force is the static friction force between the clutch mechanism and the control blade. The static friction force is greater than the maintaining force that keeps each pair of blade units relatively stationary, so that the drive mechanism drives at least two of the active blade, the at least one intermediate blade, and the control blade to rotate relative to each other.

[0015] Optionally, the clutch mechanism includes a first friction element, and the control blade is provided with a second friction element, or the control blade is integrally formed with a second friction element; wherein, the first friction element is used to frictionally engage with the second friction element when the clutch mechanism is in a coupled state.

[0016] Optionally, the clutch mechanism further includes an elastic element that tends to move the first friction element away from the control blade.

[0017] Optionally, the clutch mechanism further includes a locking disc, which is fixedly connected to the first friction member; or, the locking disc and the first friction member are integrally injection molded structures.

[0018] Optionally, the air outlet device further includes a housing, one of the locking disc and the housing is provided with a limiting protrusion, and the other of the locking disc and the housing is provided with a limiting groove, the limiting protrusion cooperating with the limiting groove to limit the locking disc.

[0019] Optionally, the air outlet device further includes a housing, and the clutch mechanism further includes a control disc, the control disc being rotatably disposed on the housing, the control disc having a first protrusion, and the locking disc having a second protrusion, the first protrusion being used to abut against and push the second protrusion during the rotation of the control disc, so that the locking disc moves toward the control blade.

[0020] Optionally, the second friction member includes a friction portion and a locking portion connected to each other, the first friction member is used to frictionally engage with the friction portion when the clutch mechanism is in a coupled state, and the locking portion engages with the control blade.

[0021] Optionally, the clutch mechanism further includes a housing and a blade support, the blade support being disposed on the housing, and the control blade at least partially passing through the blade support and being rotatable relative to the blade support.

[0022] The beneficial effects of the air outlet device provided in this application embodiment include, for example:

[0023] In the process of resetting the blades to the natural wind state, the air outlet device first switches the clutch mechanism to the coupled state. The clutch mechanism applies a locking force to one end of the blade string. At this time, at least two blade units among the multiple blade units can rotate relative to each other. Then, the drive mechanism applies a driving force to the other end of the blade string, causing at least two blade units among the multiple blade units to rotate relative to each other. After the idle travel between all blade units is eliminated, since the locking force applied by the clutch mechanism to the blade string is less than the driving force applied by the drive mechanism to the blade string, the drive mechanism is allowed to rotate the blade string without causing torsional deformation of the blade string. At this time, no torsional force is generated on the blade string, and it is not easy for collisions or noise to occur between blade units or between blade units and other components. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an overall schematic diagram of the air outlet device in the embodiments of this application;

[0026] Figure 2 This is an exploded view of the overall structure of the air outlet device in the embodiments of this application;

[0027] Figure 3 This is a schematic diagram illustrating the clutch mechanism in a decoupled state in an embodiment of this application;

[0028] Figure 4 for Figure 3 Sectional view along the middle AA direction;

[0029] Figure 5 This is a schematic diagram illustrating the clutch mechanism in a coupled state in an embodiment of this application;

[0030] Figure 6 for Figure 5 Sectional view along the BB direction;

[0031] Figure 7This is an exploded view of a partial structure of the air outlet device in an embodiment of this application;

[0032] Figure 8 This is a schematic diagram illustrating the connection relationship between the first friction element and the locking disc in an embodiment of this application;

[0033] Figure 9 This is a schematic diagram of the locking disc structure in an embodiment of this application;

[0034] Figure 10 This is a schematic diagram of the control panel structure in an embodiment of this application;

[0035] Figure 11 This is a schematic diagram illustrating the connection relationship between the second friction element and the control blade in an embodiment of this application.

[0036] Icons: 10-Air outlet device; 100-Housing; 200-Drive mechanism; 210-Drive motor; 220-Transmission shaft; 300-Clutch mechanism; 310-Spindle; 311-Snap ring; 312-Abutment ring; 320-First friction element; 321-First friction surface; 322-Snap fastener; 330-Locking disc; 331-Slot; 332-Limiting protrusion; 333-Second protrusion; 340-Elastic element; 350-Control disc; 351-First protrusion; 360-Control motor; 370-Blade support; 400-Active blade; 500-Intermediate blade; 600-Control blade; 610-Second friction element; 611-Friction part; 6111-Second friction surface; 612-Snap-fit ​​part; 620-Groove. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0042] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0043] As disclosed in the background section, in practical applications, air outlet devices need to reset the blades to a natural wind state. Since the current state of the blades is uncertain, a motor is generally used to calibrate them with stall torque. Stall torque is transmitted between the blades, clutch mechanism, and housing. Since the dimensional chain of these parts is very long, excessive motor torque may cause torsional deformation of these parts. At this time, the motor needs to retract a certain angle to avoid generating torsional force on the blades. This torsional force is released when the clutch mechanism is in a decoupled state, causing collisions between parts and generating noise. It may also cause the relative angle between the blades to be in an unknown state, and may even cause the blades to malfunction.

[0044] Because the stall torque of different motors varies with tolerance, and the stiffness of each component is different at different temperatures, resulting in different degrees of torsional deformation, it is difficult to determine the motor retraction angle. Even if the accurate angle is calibrated at room temperature, the above problems may occur at high or low temperatures due to different angle requirements.

[0045] Please refer to Figures 1-6This application provides an air outlet device 10, including a housing 100, a drive mechanism 200, a clutch mechanism 300, and a blade string. The blade string includes multiple blade units. The drive mechanism 200 is used to drive the blade string to rotate as a whole, or to drive at least two blade units among the multiple blade units to rotate relative to each other. The clutch mechanism 300 has a coupled state and a decoupled state. When the clutch mechanism 300 is in the coupled state, it applies a locking force to one end of the blade string, and the drive mechanism 200 applies a driving force to the other end of the blade string, so that at least two blade units among the multiple blade units rotate relative to each other. When the clutch mechanism 300 is in the decoupled state, it drives the blade string to rotate as a whole. When the clutch mechanism 300 is in the coupled state, the locking force applied by the clutch mechanism 300 to the blade string is less than the driving force applied by the drive mechanism 200 to the blade string.

[0046] During the process of resetting the blade string to the natural wind state, the air outlet device 10 first switches the clutch mechanism 300 to the coupling state. The clutch mechanism 300 applies a locking force to one end of the blade string. At this time, at least two blade units among the multiple blade units can rotate relative to each other. Then, the drive mechanism 200 applies a driving force to the other end of the blade string, causing at least two blade units among the multiple blade units to rotate relative to each other. After the idle travel between all blade units is eliminated, since the locking force applied by the clutch mechanism 300 to the blade string is less than the driving force applied by the drive mechanism 200 to the blade string, the drive mechanism 200 is allowed to rotate the blade string without causing torsional deformation of the blade string. At this time, no torsional force is generated on the blade string, and it is not easy for collisions or noise to occur between blade units or between blade units and other components.

[0047] In this embodiment, the multiple blade units include a series of sequentially arranged active blades 400, at least one intermediate blade 500, and control blades 600. The drive mechanism 200, clutch mechanism 300, active blades 400, at least one intermediate blade 500, and control blades 600 are all disposed on the housing 100. The drive mechanism 200 is connected to the active blades 400 to drive the active blades 400 to rotate. When the clutch mechanism 300 is in a coupled state, the clutch mechanism 300 applies a locking force to the control blades 600 to keep the control blades 600 stationary, and the drive mechanism 200 applies a driving force to the active blades 400, so that the active blades 400 and the intermediate blades 500 can rotate. The clutch mechanism 300 is used to keep the active blades 400, the intermediate blades 500, and the control blades 600 relatively stationary in a decoupled state, so that the drive mechanism 200 can drive the entire blade string to rotate.

[0048] The drive mechanism 200 includes a drive motor 210 and a transmission shaft 220. The drive motor 210 is connected to the active blade 400 via the transmission shaft 220. When the drive motor 210 is started, it drives the active blade 400 to rotate via the transmission shaft 220.

[0049] The clutch mechanism 300 includes a spindle 310, which is movably disposed in the housing 100. The direction of movement of the spindle 310 is consistent with the axial direction of the spindle 310. The spindle 310 passes through the active blade 400, all the intermediate blades 500 and the control blade 600. The active blade 400, all the intermediate blades 500 and the control blade 600 can rotate around the spindle 310.

[0050] The active blade 400, intermediate blade 500 and control blade 600 are arranged sequentially along the axial direction of the spindle 310. The adjacent blades are limited in the circumferential direction of the spindle 310 by a key and keyway fit, so that the adjacent blades can rotate relative to each other at a certain angle. On the other hand, the adjacent blades can move relative to each other a certain distance in the axial direction of the spindle 310, and the key and keyway fit is always maintained between the adjacent blades.

[0051] A retaining ring 311 is provided on the spindle 310. The retaining ring 311 is located on the side of the active blade 400 away from the intermediate blade 500. When the clutch mechanism 300 is in the decoupled state, the retaining ring 311 will press the active blade 400, the intermediate blade 500 and the control blade 600 together, so that the active blade 400, the intermediate blade 500 and the control blade 600 remain relatively stationary. When the clutch mechanism 300 is in the coupled state, the retaining ring 311 will release the pressing between the active blade 400, the intermediate blade 500 and the control blade 600, so that the active blade 400, the intermediate blade 500 and the control blade 600 can rotate relative to each other.

[0052] During the process of resetting the blades to the natural wind state, the air outlet device 10 first switches the clutch mechanism 300 to the coupled state and applies a locking force to the control blade 600. Then, the drive mechanism 200 drives the active blade 400 to rotate. The active blade 400 drives each intermediate blade 500 to rotate. After the free travel between the active blade 400, intermediate blade 500 and control blade 600 is eliminated, the driving force applied by the drive mechanism 200 is greater than the locking force applied by the clutch mechanism 300. The blade string can rotate relative to the clutch mechanism 300, so the blade string is not prone to torsional deformation. Furthermore, since the blade string has rotated relative to the clutch mechanism 300, when the clutch mechanism 300 is switched to the decoupled state, no torsional force is generated on the blade string. It is also not easy for collisions or noise to occur between blade units or between blade units and the housing 100. The rotation angle of the blade unit relative to the clutch mechanism 300 is easy to obtain, and the blade function failure is not likely to occur.

[0053] In some embodiments, when the clutch mechanism 300 is in a coupled state, the locking force is the static friction force between the clutch mechanism 300 and the control blade 600. The static friction force is greater than the maintaining force that keeps each pair of blade units relatively stationary, so that the drive mechanism 200 drives at least two of the active blade 400, at least one intermediate blade 500 and the control blade 600 to rotate relative to each other.

[0054] It should be noted that when the locking force is the static friction between the clutch mechanism 300 and the control blade 600, this locking force is greater than the maintaining force that keeps each pair of blade units relatively stationary. When the drive mechanism 200 drives the active blade 400 to rotate, the control blade 600 can remain stationary first. The active blade 400 and each intermediate blade 500 rotate relative to the control blade 600 in sequence until the idle travel between the active blade 400, the intermediate blades 500 and the control blade 600 is completely eliminated, and the drive mechanism 200 drives the entire blade series to rotate.

[0055] In some embodiments, the clutch mechanism 300 includes a first friction element 320, and the control blade 600 is provided with a second friction element 610, or the control blade 600 is integrally formed with a second friction element 610; wherein, the first friction element 320 is used to frictionally engage with the second friction element 610 when the clutch mechanism 300 is in a coupled state.

[0056] The first friction element 320 is part of the clutch mechanism 300. The first friction element 320 has a first friction surface 321, and the second friction element 610 has a second friction surface 6111. The first friction surface 321 is used to form frictional contact with the second friction surface 6111. Both the first friction surface 321 and the second friction surface 6111 can be provided with protrusions to increase the frictional force when they come into contact. The second friction element 610 can be fixedly connected to the control blade 600 or integrally formed with the control blade 600. The second friction element 610 is used to come into contact with the first friction element 320 and generate sufficient frictional resistance when the clutch mechanism 300 is in a coupled state, so that the control blade 600 and the clutch mechanism 300 remain relatively stationary.

[0057] It should be noted that the magnitude of the frictional force between the first friction element 320 and the second friction element 610 depends on the contact pressure and material properties between them, and the maximum value of this frictional force is the aforementioned locking force. When the driving force applied by the drive mechanism 200 is greater than this maximum frictional force, relative sliding occurs between the first friction element 320 and the second friction element 610, thereby cutting off the further power transmission path and preventing the blade string from generating torsional force storage due to overload.

[0058] Optionally, both the first friction element 320 and the second friction element 610 are annular structures made of silicone. The spindle 310 passes through both the first friction element 320 and the second friction element 610. The silicone material is mainly based on its good elasticity and controllable friction performance, which can achieve stable frictional cooperation between the first friction element 320 and the second friction element 610, and achieve slippage function under overload conditions.

[0059] In other embodiments, the first friction element 320 and the second friction element 610 may also be made of polymer materials with certain elasticity and frictional properties, such as rubber, polyurethane, nylon, and polytetrafluoroethylene (PTFE). These materials can generate sufficient frictional force under pressure and can achieve similar functions to silicone materials.

[0060] Please refer to Figure 7 , Figure 8 In this embodiment, the clutch mechanism 300 further includes a locking disc 330, which is fixedly connected to the first friction member 320; or, the locking disc 330 and the first friction member 320 are integrally injection molded structures.

[0061] In an optional embodiment, one of the locking disc 330 and the first friction member 320 is provided with a slot 331, and the other of the locking disc 330 and the first friction member 320 is provided with a buckle 322, which engages with the slot 331.

[0062] The locking disc 330 is sleeved on the spindle 310 and can move along the axial direction of the spindle 310. The locking disc 330 and the first friction member 320 are fixedly connected by the engagement of the buckle 322 and the slot 331. The first friction member 320 can move synchronously with the locking disc 330.

[0063] For example, a slot 331 is formed in the locking plate 330, and a buckle 322 is provided in the first friction member 320. The number of slots 331 and buckles 322 can be multiple. For example, three slots 331 are formed along the circumference of the locking plate 330, and correspondingly, three buckles 322 are formed along the circumference of the first friction member 320. The three slots 331 are engaged with the three buckles 322 in a one-to-one correspondence.

[0064] In other embodiments, the locking disc 330 and the first friction member 320 may also be fixed by adhesive bonding.

[0065] In this embodiment, the clutch mechanism 300 further includes an elastic element 340, which has a tendency to cause the first friction member 320 to move away from the control blade 600.

[0066] In an optional embodiment, an elastic element 340 is disposed between the locking disc 330 and the control blade 600, and the elastic element 340 has a tendency to move the locking disc 330 away from the control blade 600.

[0067] The elastic element 340 is disposed between the locking disc 330 and the control blade 600, and has the tendency to cause the locking disc 330 to move away from the control blade 600. When the clutch mechanism 300 switches from the coupled state to the decoupled state, the locking disc 330 can automatically reset under the action of the elastic element 340, thereby driving the first friction member 320 to disengage from the second friction member 610.

[0068] The elastic element 340 can be a spring, which is sleeved on the spindle 310. One end of the spindle 310 is provided with an abutment ring 312. One end face of the abutment ring 312 abuts against the locking disc 330, and the other end face of the abutment ring 312 abuts against one end of the spring. The other end of the spring abuts against the second friction element 610.

[0069] When the clutch mechanism 300 switches from the coupled state to the decoupled state, the external pushing force applied to the locking disc 330 is removed. At this time, the energy stored in the elastic element 340 is released, pushing the spindle 310 and the locking disc 330 to move in opposite directions along the axial direction of the spindle 310, thereby releasing the maintenance of the clamping force between the first friction member 320 and the second friction member 610. At the same time, the snap ring 311 on the spindle 310 pushes the active blade 400, so that the active blade 400, each intermediate blade 500 and the control blade 600 abut against each other. At this time, the active blade 400, each intermediate blade 500 and the control blade 600 can rotate synchronously.

[0070] In this embodiment, a limiting protrusion 332 is provided on one of the locking disc 330 and the housing 100, and a limiting groove is provided on the other of the locking disc 330 and the housing 100. The limiting protrusion 332 cooperates with the limiting groove to limit the locking disc 330.

[0071] The opening direction of the limiting groove is consistent with the axial direction of the spindle 310. The cooperation between the limiting protrusion 332 and the limiting groove allows the locking disc 330 to move along the axial direction of the spindle 310, but not to rotate around the spindle 310, thereby limiting the locking disc 330.

[0072] For example, such as Figure 9 As shown, a limiting protrusion 332 is disposed on the locking disc 330, and a limiting groove is formed on the housing 100. The number of limiting protrusions 332 and limiting grooves can be multiple. For example, three limiting protrusions 332 are provided along the circumference of the locking disc 330. Correspondingly, three limiting grooves are formed on the housing 100, and the three limiting protrusions 332 respectively cooperate with the three limiting grooves.

[0073] When the locking disc 330 is subjected to external force or the rebound force of the elastic element 340, it can only move axially along the opening direction of the limiting groove, and cannot rotate circumferentially relative to the housing 100, thereby effectively avoiding the jamming of the locking disc 330 due to uneven force or different friction distribution.

[0074] Please combine Figure 10 In this embodiment, the clutch mechanism 300 further includes a control disk 350, which is rotatably disposed on the housing 100. The control disk 350 is provided with a first protrusion 351, and the locking disk 330 is provided with a second protrusion 333. The first protrusion 351 is used to abut against and push the second protrusion 333 during the rotation of the control disk 350, so that the locking disk 330 moves toward the control blade 600.

[0075] The clutch mechanism 300 also includes a control motor 360 connected to the control panel 350. The control motor 360 can drive the control panel 350 to rotate, thereby causing the locking plate 330 to move toward the control blade 600.

[0076] When the control motor 360 drives the control disk 350 to rotate, the first protrusion 351 rotates synchronously with the control disk 350 and resists the second protrusion 333 on the locking disk 330. As the control disk 350 continues to rotate, the first protrusion 351 applies a pushing force to the second protrusion 333, forcing the locking disk 330 to move axially toward the control blade 600, thereby driving the first friction member 320 fixed thereto to approach the second friction member 610 and press it tightly, and the clutch mechanism 300 reaches the coupling state.

[0077] In this design, the first protrusion 351 of the control disc 350 does not drive the locking disc 330 in a continuous transmission manner. Instead, it only contacts the second protrusion 333 of the locking disc 330 and applies a pushing force when the control disc 350 rotates to a predetermined angle range. When the clutch mechanism 300 needs to switch to the decoupling state, the control disc 350 is driven to rotate in the opposite direction by the control motor 360. The first protrusion 351 releases its resistance to the second protrusion 333, allowing the control disc 350 to accurately control the engagement timing of the clutch mechanism 300 without interfering with the reset process of the locking disc 330. In addition, the contact surface between the first protrusion 351 and the second protrusion 333 is designed as a slope or arc transition, which can achieve a smoother force transmission during the contact process and avoid mechanical damage or noise.

[0078] Please refer to Figure 11 In this embodiment, the second friction member 610 includes a friction part 611 and a snap-fit ​​part 612 connected to each other. The first friction member 320 is used to engage with the friction part 611 when the clutch mechanism 300 is in a coupled state. The snap-fit ​​part 612 engages with the control blade 600.

[0079] The friction part 611 and the locking part 612 can be integrally formed. The second friction surface 6111 is disposed on the side of the friction part 611 opposite to the locking part 612. The locking part 612 is used to fixally connect with the control blade 600. When the clutch mechanism 300 is in the coupled state, the first friction surface 321 of the first friction member 320 and the second friction surface 6111 of the friction part 611 form a pressing contact, while the locking part 612 is fixed by locking with the control blade 600, ensuring that the second friction member 610 and the control blade 600 form a whole, and that relative sliding or loosening between the second friction member 610 and the control blade 600 is not likely to occur.

[0080] The friction part 611 can be made of a material with an appropriate coefficient of friction and wear resistance to provide a stable frictional torque when the clutch mechanism 300 is in the coupled state, and allow relative sliding between the first friction member 320 and the second friction member 610, thereby realizing the slip protection function; the snap-fit ​​part 612 is adapted to the groove 620 on the control blade 600, so that it can be quickly positioned and firmly connected to the control blade 600 during the assembly process, while allowing disassembly and replacement when necessary to adapt to different usage requirements or maintenance scenarios.

[0081] In this embodiment, the clutch mechanism 300 further includes a blade support 370, which is disposed on the housing 100. The control blade 600 is at least partially inserted through the blade support 370 and can rotate relative to the blade support 370.

[0082] When the second friction member 610 includes a friction part 611 and a locking part 612 connected together, the locking part 612 passes through the blade support 370 and can rotate relative to the blade support 370.

[0083] The blade support 370 is a support member fixedly connected to the housing 100. It has a through hole for accommodating the snap-fit ​​part 612, allowing the snap-fit ​​part 612 of the second friction member 610 to pass through and be fixedly connected to the control blade 600. The snap-fit ​​part 612 is restricted to a specific axial position by the blade support 370. Therefore, when the control blade 600 is driven by the drive motor 210, it can only rotate around the spindle 310 and cannot be displaced along the axial direction of the spindle 310. This design ensures that the control blade 600 is always in the preset spatial position throughout the adjustment process, avoiding problems such as friction failure or unstable clutch state caused by axial movement.

[0084] When the clutch mechanism 300 is in the coupled state, and the drive motor 210 applies a driving force to the active blade 400, the control blade 600 will be subjected to a reaction force from the frictional engagement between the first friction member 320 and the second friction member 610. If the blade support 370 does not axially limit the locking part 612, the reaction force may cause the control blade 600 to undergo axial displacement, thereby affecting the stability of the frictional engagement, or even causing the entire blade to deviate from the predetermined motion trajectory.

[0085] By inserting the snap-fit ​​portion 612 into the blade support 370 and allowing it to rotate relative to the blade support 370, the blade support 370 not only provides support for the control blade 600, but also serves as a limit to prevent it from undergoing unexpected axial displacement.

[0086] In summary, the present application provides an air outlet device 10. During the process of resetting the blade string to a natural wind state, the air outlet device 10 first switches the clutch mechanism 300 to a coupled state. The clutch mechanism 300 applies a locking force to the control blade 600. Then, the drive motor 210 applies a driving force to the active blade 400. Since the driving force is greater than the locking force, the drive motor 210 can drive the entire blade string to rotate, so the blade string is not prone to torsional deformation. When the clutch mechanism 300 is switched to a decoupled state, since no torsional force is generated on the blade string, it is not easy for the blade units to collide or generate noise between the blade units and other components.

[0087] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An air outlet device, characterized in that, include: A blade string, wherein the blade string comprises multiple blade units; A drive mechanism (200) is used to drive the blade string to rotate as a whole, or to drive at least two blade units among the plurality of blade units to rotate relative to each other. The clutch mechanism (300) has a coupled state and a decoupled state. When the clutch mechanism (300) is in the coupled state, it applies a locking force to one end of the blade string, and the drive mechanism (200) applies a driving force to the other end of the blade string to cause relative rotation between at least two blade units among the plurality of blade units. When the clutch mechanism (300) is in the decoupled state, the drive mechanism (200) drives the entire blade string to rotate. When the clutch mechanism (300) is in a coupled state, the locking force is less than the driving force.

2. The air outlet device according to claim 1, characterized in that, The plurality of blade units include an active blade (400), at least one intermediate blade (500), and a control blade (600) arranged in sequence. The drive mechanism (200) is connected to the active blade (400) to drive the active blade (400) to rotate; When the clutch mechanism (300) is in a coupled state, the clutch mechanism (300) applies the locking force to the control blade (600), and the drive mechanism (200) applies the driving force to the active blade (400).

3. The air outlet device according to claim 2, characterized in that, When the clutch mechanism (300) is in a coupled state, the locking force is the static friction force between the clutch mechanism (300) and the control blade (600). The static friction force is greater than the maintaining force that keeps each pair of blade units relatively stationary, so that the drive mechanism (200) drives at least two of the active blade (400), the at least one intermediate blade (500), and the control blade (600) to rotate relative to each other.

4. The air outlet device according to claim 2, characterized in that, The clutch mechanism (300) includes a first friction element (320), and the control blade (600) is provided with a second friction element (610), or the control blade (600) is integrally formed with a second friction element (610); The first friction element (320) is used to engage with the second friction element (610) in frictional contact when the clutch mechanism (300) is in a coupled state.

5. The air outlet device according to claim 4, characterized in that, The clutch mechanism (300) further includes an elastic element (340) that has a tendency to move the first friction element (320) away from the control blade (600).

6. The air outlet device according to claim 4, characterized in that, The clutch mechanism (300) further includes a locking disc (330), which is fixedly connected to the first friction member (320); or, The locking disc (330) and the first friction element (320) are integrally injection molded structures.

7. The air outlet device according to claim 6, characterized in that, The air outlet device also includes a housing (100). One of the locking disc (330) and the housing (100) is provided with a limiting protrusion (332), and the other of the locking disc (330) and the housing (100) is provided with a limiting groove (620). The limiting protrusion (332) cooperates with the limiting groove (620) to limit the locking disc (330).

8. The air outlet device according to claim 6, characterized in that, The air outlet device also includes a housing (100), and the clutch mechanism (300) also includes a control disc (350). The control disc (350) is rotatably disposed on the housing (100). The control disc (350) is provided with a first protrusion (351), and the locking disc (330) is provided with a second protrusion (333). The first protrusion (351) is used to abut against and push the second protrusion (333) during the rotation of the control disc (350) so that the locking disc (330) moves toward the control blade (600).

9. The air outlet device according to claim 4, characterized in that, The second friction member (610) includes a friction part (611) and a snap-fit ​​part (612) connected to each other. The first friction member (320) is used to frictionally engage with the friction part (611) when the clutch mechanism (300) is in a coupled state. The snap-fit ​​part (612) engages with the control blade (600).

10. The air outlet device according to claim 2, characterized in that, The air outlet device also includes a housing (100) and a blade support (370), the blade support (370) being disposed on the housing (100), and the control blade (600) being at least partially inserted through the blade support (370) and rotatable relative to the blade support (370).

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