A perturbation convection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING UNIV OF SCI & TECH
- Filing Date
- 2026-02-27
- Publication Date
- 2026-06-12
Smart Images
Figure CN122191780A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vortex ring air supply technology, and more specifically to a disturbance-type convection device. Background Technology
[0002] Vortex ring air supply technology is widely used in directional air supply, air conditioning systems, air purification, and special ventilation due to its advantages such as long air delivery distance, good airflow concentration, and low energy attenuation. Traditional vortex ring generators typically use continuous blowing to produce continuous vortex rings, resulting in a single airflow output mode that cannot quickly and reliably switch or interrupt air supply during operation.
[0003] To achieve intermittent or on-demand air supply, existing technologies mostly rely on installing external dampers in the duct, starting and stopping fans, or using complex multi-stage fluid control devices. These methods generally use a single rotating plate to intermittently switch the flow channel on and off. Because a single rotating plate has a large mass, its rotational inertia is large, resulting in a slow response and making it difficult to achieve a rapid airflow obstruction effect.
[0004] Therefore, the industry urgently needs a vortex ring air supply device that is simple in structure, directly controlled, and capable of quickly and stably switching between airflow in the two states of supply and disturbance. Summary of the Invention
[0005] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a disturbance-type convection device to solve the technical problems of slow response speed and incomplete obstruction in the existing vortex ring air supply device.
[0006] To achieve the above-mentioned technical objectives, this application adopts the following technical solution: This application provides a disturbance-type convection device, comprising: The outer casing has a fan at one end and a nozzle at the other end; A flow guiding assembly is disposed inside the housing, comprising multiple partitions and multiple pairs of air guide plates. The multiple partitions extend axially along the housing and divide the interior of the housing into multiple independent sub-cavities. At least one air guide plate is disposed in each sub-cavity, and the air guide plate defines a main channel between itself and the opposite flow channel wall. The disturbance component includes a rotating shaft and a rotating plate. The rotating shaft is rotatably disposed through the outer casing, and the rotating plate is fixed on the rotating shaft. The rotating plate is movably disposed between the air guide plate and the inner wall of the outer casing. A drive assembly, connected to the rotating shaft, is used to drive the rotating plate to switch between a first position and a second position; When the rotating plate rotates to the first position, it closes the gap between the air guide plate and the inner wall of the outer shell, so that the airflow is guided and ejected from the nozzle through the main channel. When the rotating plate rotates to the second position, a diversion channel is formed between it and the inner wall of the outer shell, so that part of the airflow passes through the diversion channel and is guided by the air guide plate to form a reverse airflow that is opposite to the direction of the main airflow in the main channel, so as to counteract the main airflow.
[0007] In some embodiments of this application, the drive assembly includes a connecting plate, a telescopic actuator, and a transmission mechanism: The connecting plate is fixedly connected to one end of the rotating shaft and has a groove; the telescopic actuator is disposed on the outer shell; the transmission mechanism is connected between the telescopic actuator and the connecting plate, and is used to convert the linear motion of the telescopic actuator into the oscillation of the connecting plate.
[0008] In some embodiments of this application, the transmission mechanism includes a main shaft, a connecting member, and a linkage member; The main shaft is fixedly connected to the output end of the telescopic actuator, the connecting member is fixed on the main shaft, one end of the linkage member is hinged to the connecting member, and the other end is rotatably disposed in the groove of the connecting plate.
[0009] In some embodiments of this application, the telescopic actuator is a telescopic rod, which simultaneously drives multiple rotating shafts to rotate synchronously through the transmission mechanism.
[0010] In some embodiments of this application, the sidewall of the outer shell has a notch at the position corresponding to the air guide plate, and an outwardly protruding arc-shaped expansion plate is fixed at the notch. The inner arc surface of the arc-shaped expansion plate and the outer sidewall of the corresponding air guide plate form an expansion cavity. When the rotating plate is in the first position, the expansion cavity is isolated from the main channel; when the rotating plate is in the second position, the main channel is cyclically connected to the expansion cavity through the diversion channel.
[0011] In some embodiments of this application, the corner between the inner side of the air guide plate facing the main channel and the protruding end face is set as an arc transition surface. When the rotating plate is in the first position, one end of it abuts against the end face of the air guide plate and forms a closed space with the inner side wall of the air guide plate and the inner wall of the outer shell.
[0012] In some embodiments of this application, a sensing layer is also included, which includes a working condition sensor group and an environmental sensor group; The working condition sensor group includes a flow rate sensor, an angle sensor, and a pressure sensor. The flow rate sensor is located at the nozzle, the angle sensor is located at the rotating shaft, and the pressure sensor is located inside the sub-cavity. The environmental sensor group includes an infrared sensor and a vibration sensor, which are disposed on the exterior of the housing.
[0013] In some embodiments of this application, a controller is also included, which is electrically connected to the fan, the drive assembly, the operating condition sensor group, and the environmental sensor group, respectively.
[0014] In some embodiments of this application, a wind-gathering shroud is provided on the top of the outer shell, the nozzle is cylindrical and located at the center of the wind-gathering shroud, and the diameter of the nozzle is smaller than the channel width between the air guide plates.
[0015] In some embodiments of this application, a plurality of partitions are vertically fixed in an array to the inner wall of the outer shell, dividing the internal space of the outer shell into a plurality of independent sub-cavities; a plurality of rotating plates are fixed on the same rotating shaft, and each rotating plate on the same rotating shaft is respectively housed in its corresponding sub-cavity.
[0016] Compared with the prior art, the beneficial technical effects of the technical solution provided in this application include: By switching the rotating plate between a first position (ventilation) and a second position (disturbance), two physical flow channels are constructed: a direct flow and a diversion flow. In the disturbed state, the open diversion channel guides a portion of the airflow, which then forms a reverse airflow after being directed outside the guide plate. This reverse airflow is opposite in direction to the original rising main airflow in the main channel, and the two flow streams internally cancel each other out, achieving rapid and complete airflow cancellation without shutting down the fan. This reverse airflow counteracts the main airflow, creating disturbance and obstruction, thus generating vortex rings. Compared to a single rotating plate that moves 360° to obstruct airflow, this structure has a smaller moment of inertia and a smaller rotation angle, resulting in a faster response time and effectively eliminating residual wind during disturbance, ensuring the clarity and stability of subsequent vortex ring generation. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the embodiments will be briefly described below: Figure 1 This is a schematic diagram of the structure of a disturbance-type convection device according to an embodiment of this application; Figure 2 This is a cross-sectional front view of a perturbation convection device in ventilation mode according to an embodiment of this application; Figure 3 This is a cross-sectional front view of a disturbance-type convection device under disturbance mode in an embodiment of this application; Figure 4 This is a cross-sectional perspective view of a disturbance convection device according to an embodiment of this application; Figure 5 This is a schematic diagram of airflow in two modes of a disturbance convection device according to an embodiment of this application; Figure 6 This is a block diagram of a control system for a disturbance-type convection device according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a sensing layer in an embodiment of this application.
[0018] Figure label: 1. Outer shell; 2. Condenser shroud; 3. Nozzle; 4. Fan; 5. Partition plate; 6. Air guide plate; 7. Rotating shaft; 8. Connecting plate; 9. Rotating plate; 10. Linkage component; 11. Telescopic rod; 12. Main shaft; 13. Connecting component; 14. Arc-shaped expansion plate. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0020] Those skilled in the art will understand that, in this specification, the term "comprising" is an open-ended expression, meaning that the stated feature is present but other features are excluded. Directional terms such as "upper," "lower," "left," and "right" refer to exemplary directions based on the accompanying drawings. Features specified as "first" or "second" implicitly include one or more of that feature. Singular expressions can also be used in plural forms. "Multiple" means two or more. The terms "installed," "connected," and "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection via an intermediate medium, and it can be a connection within two components. Furthermore, "linked" can include wireless connections.
[0021] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a disturbance-type convection device to solve the technical problems of slow response speed and incomplete obstruction in the existing vortex ring air supply device.
[0022] To achieve the above-mentioned technical objectives, this application adopts the following technical solution: like Figures 1 to 5 As shown, this application provides a disturbance-type convection device. The device mainly consists of a housing 1, a flow guiding component, a disturbance component, and a drive component.
[0023] The outer casing 1 serves as the carrier of the entire device, and its interior forms a channel for airflow. A concentrator shroud 2 is installed on the top of the outer casing 1, and a nozzle 3 is connected to the center of the concentrator shroud 2. The airflow is ultimately ejected from the nozzle 3 to form a vortex ring. A fan 4 is installed at the bottom of the outer casing 1 to generate a continuous upward airflow source.
[0024] The airflow guiding assembly is located inside the outer casing 1 and includes multiple vertically arranged baffles 5 and multiple pairs of air guide plates 6. The baffles 5 extend axially along the outer casing 1 and are arranged in an array, dividing the internal space of the outer casing 1 into multiple independent sub-cavities. This partitioning design helps to rectify the flow and avoid large-scale turbulence. Within each sub-cavity, at least one air guide plate 6 is provided, forming a main channel through which airflow passes directly between the air guide plate 6 and the opposing flow channel wall (such as another air guide plate or baffle) within the sub-cavity.
[0025] The disturbance assembly includes a rotating shaft 7 and a rotating plate 9. The rotating plate 9 is fixed to the rotating shaft 7, which is rotatably inserted through the outer casing 1. The rotating plate 9 is movably disposed in the area between the outer side of the air guide plate 6 and the inner wall of the outer casing 1. Specifically, each rotating plate 9 controls the airflow path on one side of the air guide plate 6.
[0026] The drive assembly is connected to the rotating shaft 7 via the connecting plate 8. The drive assembly is used to drive the rotating plate 9 to switch angles between the first position and the second position.
[0027] Working principle: First position (ventilation mode): such as Figure 2 As shown, the drive assembly drives the rotating plate 9 to rotate to the first position. At this time, one end of the rotating plate 9 abuts against the inner wall of the outer casing 1, and the other end abuts against the end of the air guide plate 6. The rotating plate 9 effectively seals the gap between the air guide plate 6 and the inner wall of the outer casing 1. Therefore, the airflow generated by the fan 4 cannot pass through from both sides, but can only be constrained and converged, and all of it flows upward through the main channel between the two air guide plates 6, and finally is ejected through the nozzle 3 to form a vortex ring.
[0028] Second position (perturbation pattern): such as Figure 3 As shown, the drive assembly drives the rotating plate 9 to rotate to the second position. At this time, the rotating plate 9 no longer closes the aforementioned gap, but instead forms a diversion channel between itself and the inner wall of the outer casing 1. The airflow path changes: part of the airflow enters this diversion channel and flows along the outer wall of the guide plate 6. Because the guide plate 6 has a downwardly inclined guiding structure, this part of the airflow is guided to form a downward or opposite airflow direction to the main channel airflow. This opposite airflow meets and opposes the upward main airflow generated by the fan 4 below the channel.
[0029] By switching the position of rotating plate 9, the physical flow channel is switched. In the second position, utilizing the counter-current principle in fluid mechanics, the airflow counteracts its own kinetic energy, achieving a rapid cut-off of air supply without shutting down the fan. This disturbance method is more thorough than simple blocking, effectively preventing air leakage and ensuring clear intervals for vortex ring emission.
[0030] In some embodiments of this device, the partitions 5 are arranged in an array along a single direction (e.g., row direction), thereby dividing the interior of the outer casing 1 into multiple independent sub-cavities. In such embodiments, a set of air guide plates 6 are symmetrically arranged on both sides of each sub-cavity, and the gap between the two air guide plates 6 forms a main channel for airflow.
[0031] In another embodiment, the baffles 5 are arranged in a crisscross array in cross-section, that is, in addition to being arranged along the aforementioned first direction (e.g., row direction), they are also arranged along a second direction perpendicular to it (e.g., column direction). This arrangement further subdivides each of the aforementioned sub-cavities into two smaller independent sub-units. In each sub-unit, the airflow in the vertical direction is still maintained. The air guide plate 6 is arranged only on one side, and the baffle 5 in the second direction is on the other side. At this time, the main channel is defined by the gap between the air guide plate 6 on that side and the baffle 5 directly opposite it. This embodiment narrows the width of a single flow channel by adding longitudinal baffles. The purpose is to ensure that when the rotating plate 9 is switched to the cut-off position, the reverse airflow led out from the diversion channel and guided by the air guide plate 6 can cover and completely cancel the main airflow on the entire cross-section of the main channel. This effectively avoids the problem that the airflow in the central area of the main channel is not deflected due to the main channel being too wide and still flows out from the nozzle 3, thereby achieving a more thorough and reliable airflow disturbance effect.
[0032] like Figure 4 As shown in the figure, this embodiment provides a detailed description of the structure of the drive assembly. The drive assembly includes a connecting plate 8, a telescopic actuator, and a transmission mechanism.
[0033] One end of the connecting plate 8 is fixedly connected to the end of the rotating shaft 7 that extends out of the outer casing 1, and the other end of the connecting plate 8 has a groove, such as an elongated hole or a sliding groove. The telescopic actuator is set on the side wall of the outer casing 1, and it is capable of outputting linear reciprocating motion.
[0034] In this embodiment, the telescopic actuator is an electric push rod or a linear motor. The transmission mechanism is connected between the telescopic actuator and the connecting plate 8, and its function is to convert the linear motion of the telescopic actuator into the oscillation of the connecting plate 8, thereby driving the rotating shaft 7 to rotate.
[0035] When a mode switch is required, the telescopic actuator extends or retracts. Through the transmission mechanism, a linear torque acts on the end of the connecting plate 8, forcing it to oscillate around the axis of the rotating shaft 7. The oscillation of the connecting plate 8 directly drives the rotating shaft 7 to rotate, thereby changing the angle of the rotating plate 9. The linkage-type drive structure converts a single linear power source into rotational motion. The structure is compact, and due to the lever arm of the connecting plate 8, multiple rotating plates 9 can be driven using a smaller power actuator, reducing energy consumption and hardware costs.
[0036] like Figure 4As shown, this embodiment further refines the transmission mechanism. The transmission mechanism includes a main shaft 12, a connecting member 13, and a linkage member 10.
[0037] The main shaft 12 is fixedly connected to the output end of the telescopic actuator and moves up and down synchronously with the telescopic actuator. The connecting parts 13 are fixed on the main shaft 12, and their number corresponds to the number of rotating shafts 7 that need to be driven. One end of the linkage 10 is hinged to the connecting part 13 by a pin, and the other end is rotatably disposed in the groove of the connecting plate 8, such as a roller or slider structure.
[0038] When the main shaft 12 moves up and down, it drives the connecting member 13 to move up and down as well. The connecting member 13 pulls or pushes the linkage 10. While the end of the linkage 10 slides in the groove of the connecting plate 8, it applies torque to the connecting plate 8, causing it to rotate. This cooperation between the main shaft, connecting member, and linkage constitutes a stable crank-slider type mechanism. The groove design allows the linkage 10 to adaptively adjust its position during rotation, avoiding motion jamming and ensuring smooth transmission and mechanical life.
[0039] like Figure 1 As shown, in this embodiment, the telescopic actuator is specifically a telescopic rod 11. The telescopic rod 11 simultaneously drives multiple rotating shafts 7 to rotate synchronously through the aforementioned transmission mechanism (main shaft 12). Specifically, the side of the outer casing 1 may have multiple rows of rotating shafts 7, and the main shaft 12 extends vertically to connect all the connecting plates 8.
[0040] A single extension or retraction of the telescopic rod 11 is transmitted simultaneously to all connecting plates 8 via the rigid main shaft 12. Therefore, multiple rotating plates 9 within multiple sub-cavities will deflect at the same angle at the same time, achieving absolute synchronization of multiple sets of disturbance components. If the disturbances in each sub-cavity are not synchronized, it will lead to uneven airflow convergence, disrupting the integrity of the vortex ring. Furthermore, single-power-source drive greatly simplifies the complexity of the control system.
[0041] like Figure 2 and Figure 3 As shown, the airflow channel has been optimized in this embodiment. A notch is provided on the side wall of the outer casing 1 at the position corresponding to the air guide plate 6. An outwardly protruding arc-shaped expansion plate 14 is fixed at this notch. The inner arc surface of the arc-shaped expansion plate 14 and the outer side wall of the corresponding air guide plate 6 enclose an expansion cavity.
[0042] When the rotating plate 9 is in the first position (ventilation), it closes the entrance to the expansion chamber, isolating it from the main channel and not affecting normal airflow. When the rotating plate 9 is in the second position (disturbance), it opens, allowing airflow from the main channel to enter the expansion chamber through the diversion channel. Because the expansion chamber provides additional volume, the airflow can smoothly swirl and change direction, forming a circulating flow. The presence of the expansion chamber reduces the flow resistance of the diversion channel. In disturbance mode, airflow more easily enters the bypass and forms a reverse flow, rather than being rigidly blocked at the main channel entrance. This enhances the flow rate and velocity of the reverse airflow, thereby improving the counteracting effect against the main airflow.
[0043] like Figure 2 As shown, this embodiment details the design of the air guide plate 6. The corner between the inner side of the air guide plate 6 facing the main channel and the protruding end face is set as a rounded transition surface. The length and installation position of the rotating plate 9 are calculated so that when the rotating plate 9 is in the first position, one end of it can tightly abut against the end face of the air guide plate 6, and together with the inner side wall of the air guide plate 6 and the inner wall of the outer shell 1, they form a closed triangular space.
[0044] The rounded transition surface guides the airflow smoothly over the end of the air guide plate 6, reducing vortices and noise generated by sharp corners. The formation of the enclosed space ensures that no airflow can enter the outside of the air guide plate 6 in ventilation mode, and all airflow is effectively utilized. The rounded design conforms to aerodynamics, reducing drag loss along the path. The tight fit ensures airtightness in the first position, improves wind energy utilization, and makes the ejected vortex ring more powerful.
[0045] like Figure 6 and Figure 7 As shown, this embodiment introduces a sensing layer to achieve intelligent control. The sensing layer is divided into a working condition sensor group and an environmental sensor group.
[0046] The operating condition sensor group is used to monitor the internal status of the equipment, including: a flow rate sensor (such as a laser Doppler sensor) installed at the nozzle 3 to monitor the speed of the ejected airflow or vortex ring in real time; an angle sensor (such as a Hall sensor) installed at the rotating shaft 7 to accurately report the current angle of the rotating plate 9; and a pressure sensor installed inside the sub-cavity to monitor changes in internal air pressure.
[0047] An environmental sensor array is used to sense the external environment, including: an infrared sensor (human body sensor) located on the exterior of housing 1 to detect the presence of a person; a vibration sensor located on the exterior of housing 1 to monitor mechanical vibrations during device operation; and a temperature and humidity sensor located on the exterior of housing 1 to monitor ambient temperature and humidity.
[0048] Each sensor collects data in real time and transmits it to the control system. Flow velocity data is used to provide feedback on the vortex ring mass; angle data is used for closed-loop control of the rotating plate position; pressure data is used to determine whether the disturbance is complete; infrared data is used to determine whether the equipment needs to be turned on; and vibration data is used for fault early warning. A comprehensive sensing network has been constructed, so that the device is no longer a blindly operating machine, but an intelligent device that can self-adjust according to its own state and the external environment.
[0049] like Figure 6 As shown, this embodiment also includes a controller. The controller (MCU or PLC) is electrically connected to the fan 4, the drive assembly, the operating condition sensor group, and the environmental sensor group, respectively.
[0050] The controller receives signals from the sensors, processes them through internal algorithms (such as PID control and logic judgment), and outputs control signals to fan 4 (to adjust its speed) and the drive components (to adjust the extension frequency and position). For example, when the flow rate sensor indicates that the vortex ring speed is insufficient, the controller increases the speed of fan 4. This achieves automated closed-loop control, ensuring the stability and adaptability of the device during long-term operation.
[0051] like Figure 1 As shown, this embodiment defines the nozzle structure. A concentrator shroud 2 is provided on the top of the outer casing 1, and the concentrator shroud 2 is funnel-shaped and constricts. The nozzle 3 is cylindrical and located at the center of the concentrator shroud 2. Crucially, the diameter of the nozzle 3 is smaller than the width of the main channel between the air guide plates 6.
[0052] The airflow enters the concentrator shroud 2 through a wider main channel and exits through a narrower nozzle 3. According to the Venturi effect, the airflow velocity increases significantly while the pressure decreases as it passes through the constriction. This structural design enables secondary acceleration of the airflow, giving the ejected airflow higher momentum. The high velocity helps to entrain surrounding still air at the nozzle edge, thus forming a compact, self-sustaining vortex ring with a longer transmission distance.
[0053] like Figure 2 As shown, this embodiment describes an arrayed internal structure. Multiple partitions 5 are vertically fixed in an array to the inner wall of the outer shell 1, physically dividing the internal space into multiple sub-cavities. A rotating shaft 7 passes laterally through these partitions 5 and sub-cavities. Multiple rotating plates 9 are fixed on the same rotating shaft 7, each rotating plate 9 located within a corresponding sub-cavity.
[0054] The total airflow generated by fan 4 is cut into multiple parallel sub-airflows by baffle 5. Each sub-airflow is independently but synchronously controlled (guided or disturbed) within its respective sub-cavity. These sub-airflows eventually converge at the converging shroud 2. The array design acts as a flow straightener, breaking up and streamlining large-scale turbulence into parallel laminar flow. This is because turbulent internal airflow causes the vortex ring to break up before ejection. Simultaneously, the modular rotating plate design facilitates manufacturing and assembly.
[0055] This embodiment further describes the control logic function of the controller in detail. The controller is connected to a mobile terminal (such as a mobile APP) and has multiple built-in operating modes. Users can view the device's operating status in real time (current mode, vortex speed, ambient temperature and humidity, and device health); it supports manual switching between "ventilation mode", "disturbance mode", and "intermittent mode", and allows customization of the intermittent period (adjustable from 0.5-10s), fan speed (3-speed manual adjustment / stepless speed regulation), and rotary plate switching response speed. The controller responds and executes commands within 10ms after they are issued.
[0056] Vortex ring optimization adjustment: The airflow velocity sensor monitors the vortex ring jet speed in real time, and the controller automatically adjusts the extension frequency of the telescopic rod and the fan speed through the PID algorithm to keep the vortex ring speed stable within the preset range (such as 5-8m / s) to ensure transmission distance and concentration.
[0057] Disturbance accuracy calibration: The controller reads the pressure sensor values inside the sub-cavity. In disturbance mode, if the pressure difference is lower than the preset threshold, it means that there is air leakage and the sealing is not complete. The controller controls the drive component to fine-tune the angle of the rotating plate 9 (e.g., fine-tuning ±0.5 degrees) until the pressure difference returns to normal, achieving adaptive sealing.
[0058] Scene linkage: When the infrared sensor detects that no one is indoors, the user can manually or the controller can automatically switch to "energy saving mode". Fan 4 stops rotating and the rotating plate 9 remains in the second position (disturbance), which acts as a dustproof door.
[0059] The app has three built-in preset scene modes that users can switch between with a single click, and the controller will automatically match the optimal parameters. Office Directional Mode: Vortex intermittent period of 3 seconds, medium wind speed, prioritizes directional airflow transmission and avoids disturbing surrounding areas; Purification Collaboration Mode: Linked with an air purifier (connected via authorized device via APP). When the purifier is turned on, the air supply device automatically adjusts the interval period to 5 seconds and the fan speed to high, enhancing the penetration of the vortex ring and improving the air mixing and purification efficiency. Quiet and Comfort Mode: Activated at night or during rest, the fan runs at low speed, the rotating plate switches at a slower speed, and the vortex ring has an 8-second interval, reducing the noise of the equipment.
[0060] Predictive maintenance: The controller continuously analyzes the spectrum of the vibration sensor. When it detects that the vibration amplitude at a specific frequency is increasing over time and exceeds a safety threshold, it determines that there is mechanical wear or loose connection, and pushes a "maintenance reminder" (such as fan bearing lubrication or shaft calibration) to the user via the APP.
[0061] Sensor fault self-diagnosis: When a sensor data is abnormal (such as no feedback or value exceeding the physical range), the controller automatically marks the fault type and pushes it to the APP, while switching to "emergency mode" (maintaining the current working state or shutting down for protection) to avoid equipment damage.
[0062] Control process: 1. Sensors collect data such as airflow speed, pressure, angle, and environmental parameters in real time, and upload them to the controller and mobile APP through the communication module; 2. The controller processes data based on preset logic and intelligent algorithms, and outputs control commands to drive the telescopic rod and fan to perform corresponding actions; 3. Users can view the real-time status through the APP, and can choose to control manually or enable the smart scene mode. Commands are transmitted to the controller via WiFi / Bluetooth. 4. After executing the command, the controller feeds back the execution result and the updated device status to the APP, forming a closed-loop control; 5. In abnormal situations (faults, unattended scenarios), the controller will automatically trigger the protection / energy-saving mechanism and simultaneously push a reminder to the APP.
[0063] Software algorithms have improved hardware performance, solved the problem of decreased precision caused by mechanical wear, and provided a user-friendly interactive experience and energy-saving management.
[0064] To further improve the sealing performance in the first position and reduce mechanical collision noise, this embodiment improves the rotating plate 9. A magnetorheological elastomer sealing strip is provided at the edge where the rotating plate 9 contacts the inner wall of the outer casing 1, and an electromagnetic coil is provided at the corresponding position on the outer casing 1.
[0065] When the device is in ventilation mode (first position), the controller energizes the electromagnetic coil, generating a magnetic field. The magnetorheological elastomer hardens instantly under the influence of the magnetic field and adheres tightly to the inner wall of the casing, forming a rigid seal to prevent air leakage. When switching to disturbance mode is required, the controller de-energizes, and the sealing strip softens, reducing frictional resistance when the rotating plate separates. This resolves the contradiction between "sealing performance" and "frictional resistance" inherent in traditional rubber sealing strips. Hardening upon energization ensures a tight seal, while softening upon de-energization ensures smooth switching and low wear, extending equipment lifespan.
[0066] To address the aerodynamic noise that may be generated by airflow collision under turbulence mode, this embodiment incorporates improvements to the flow diversion channel. A porous honeycomb-shaped noise-absorbing and rectifying mesh is filled within the flow diversion channel (or expansion cavity) between the inner wall of the outer casing 1 and the rotating plate 9.
[0067] When the rotating plate 9 rotates to the second position, the airflow enters the diversion channel and first passes through the honeycomb mesh. The honeycomb mesh cuts the large jet of air into fine airflow, which not only rectifyes the flow and makes the countercurrent more uniform, but also absorbs the noise energy of the airflow whistling by utilizing the micro-perforation principle. This significantly reduces the operating noise of the device during high-speed switching, improves user comfort, and is especially suitable for indoor environments with high requirements for quiet operation.
[0068] To improve the accuracy of air delivery, this embodiment improves the installation method of the housing 1. The bottom of the housing 1 is mounted on the base via a dual-axis motorized gimbal, and the infrared sensor in the environmental sensor group is replaced with or an additional visual tracking camera is added.
[0069] The camera captures the user's facial or body features and calculates the user's three-dimensional coordinates in space. The controller then uses these coordinates to rotate the dual-axis gimbal, ensuring that nozzle 3 is always pointed at the user's location. Combined with distance information, the controller can also automatically adjust the spray intensity (fan speed).
[0070] It achieves an intelligent air delivery experience where "the wind follows the person." No matter where the user moves, they can receive a precisely delivered vortex airflow, solving the problem of limited coverage of traditional fixed-direction airflow.
[0071] Compared with the prior art, the beneficial technical effects of the technical solution provided in this application include: This device generates a basic airflow using a fan. Under the controller's command, the drive assembly rotates a plate between a ventilation position and a disturbance position at high frequency. In the ventilation position, a closed converging flow channel is constructed internally, causing the airflow to accelerate and form a vortex ring. In the disturbance position, a diversion and counteracting flow channel is constructed internally, allowing the airflow to self-cancel within the system. This device achieves rapid airflow switching without the need for external valves, with a short response time and high-quality vortex ring formation (clear boundaries and long transmission distance). Furthermore, by combining sensors and intelligent algorithms, it possesses advanced functions such as self-calibration, fault warning, and intelligent following, significantly improving the practicality and user experience of the vortex ring air delivery technology.
[0072] Those skilled in the art will understand that the steps, measures, and schemes in the various operations, methods, processes, and procedures discussed in this application can be alternated, modified, rearranged, decomposed, combined, or deleted.
[0073] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.
Claims
1. A disturbance-type convection device, characterized in that, include: The outer casing has a fan at one end and a nozzle at the other end; A flow guiding assembly is disposed inside the housing, comprising multiple partitions and multiple pairs of air guide plates. The multiple partitions extend axially along the housing and divide the interior of the housing into multiple independent sub-cavities. At least one air guide plate is disposed in each sub-cavity, and the air guide plate defines a main channel between itself and the opposite flow channel wall. The disturbance component includes a rotating shaft and a rotating plate. The rotating shaft is rotatably disposed through the outer casing, and the rotating plate is fixed on the rotating shaft. The rotating plate is movably disposed between the air guide plate and the inner wall of the outer casing. A drive assembly, connected to the rotating shaft, is used to drive the rotating plate to switch between a first position and a second position; When the rotating plate rotates to the first position, it closes the gap between the air guide plate and the inner wall of the outer shell, so that the airflow is guided and ejected from the nozzle through the main channel. When the rotating plate rotates to the second position, a diversion channel is formed between it and the inner wall of the outer shell, so that part of the airflow passes through the diversion channel and is guided by the air guide plate to form a reverse airflow that is opposite to the direction of the main airflow in the main channel, so as to counteract the main airflow.
2. The disturbance-type convection device according to claim 1, characterized in that, The drive assembly includes a connecting plate, a telescopic actuator, and a transmission mechanism: The connecting plate is fixedly connected to one end of the rotating shaft and has a groove; the telescopic actuator is disposed on the outer shell; the transmission mechanism is connected between the telescopic actuator and the connecting plate, and is used to convert the linear motion of the telescopic actuator into the oscillation of the connecting plate.
3. The disturbance-type convection device according to claim 2, characterized in that, The transmission mechanism includes a main shaft, connecting parts, and linkage parts; The main shaft is fixedly connected to the output end of the telescopic actuator, the connecting member is fixed on the main shaft, one end of the linkage member is hinged to the connecting member, and the other end is rotatably disposed in the groove of the connecting plate.
4. The disturbance-type convection device according to claim 3, characterized in that, The telescopic actuator is a telescopic rod, which drives multiple rotating shafts to rotate synchronously through the transmission mechanism.
5. The disturbance-type convection device according to claim 1, characterized in that, The side wall of the outer shell has a notch at the position corresponding to the air guide plate. An outwardly protruding arc-shaped expansion plate is fixed at the notch. The inner arc surface of the arc-shaped expansion plate and the outer side wall of the corresponding air guide plate form an expansion cavity. When the rotating plate is in the first position, the expansion cavity is isolated from the main channel; when the rotating plate is in the second position, the main channel is cyclically connected to the expansion cavity through the diversion channel.
6. The disturbance-type convection device according to claim 5, characterized in that, The corner between the inner side of the air guide plate facing the main channel and the protruding end face is set as an arc transition surface. When the rotating plate is in the first position, one end of it abuts against the end face of the air guide plate and forms a closed space with the inner side wall of the air guide plate and the inner wall of the outer shell.
7. The disturbance-type convection device according to claim 1, characterized in that, It also includes a sensing layer, which comprises a working condition sensor group and an environmental sensor group; The working condition sensor group includes a flow rate sensor, an angle sensor, and a pressure sensor. The flow rate sensor is located at the nozzle, the angle sensor is located at the rotating shaft, and the pressure sensor is located inside the sub-cavity. The environmental sensor group includes an infrared sensor and a vibration sensor, which are disposed on the exterior of the housing.
8. The disturbance-type convection device according to claim 7, characterized in that, It also includes a controller, which is electrically connected to the fan, the drive assembly, the operating condition sensor group, and the environmental sensor group, respectively.
9. The disturbance-type convection device according to claim 1, characterized in that, The top of the outer shell is provided with a wind-gathering hood, and the nozzle is cylindrical and located at the center of the wind-gathering hood. The diameter of the nozzle is smaller than the width of the channel between the air guide plates.
10. The disturbance-type convection device according to claim 1, characterized in that, Multiple partitions are vertically fixed to the inner wall of the outer shell in an array, dividing the internal space of the outer shell into multiple independent sub-cavities; multiple rotating plates are fixed on the same rotating shaft, and each rotating plate on the same rotating shaft is respectively housed in its corresponding sub-cavity.