Fan stabilizing structure and air conditioner

Abstract

This application relates to a fan stabilization structure and an air conditioner, applied to a fan installed within a volute casing. A magnetic levitation device is installed on the inner wall of the volute casing. The fan includes a rotor, which has a cylindrical structure and includes a magnetic levitation hub that cooperates with the magnetic levitation device, and at least two rotor support rings. The rotor stabilization structure includes two arc-shaped support members facing the rotor and two telescopic drive members. The arc-shaped support members facing the rotor serve as support surfaces. The telescopic drive members are fixed to the arc-shaped support members on their arc-shaped surfaces facing away from the rotor. Each telescopic drive member can move its connected arc-shaped support member towards the rotor and clamp the corresponding rotor support ring; or, it can move its connected arc-shaped support member away from the rotor, with a gap between it and the corresponding rotor support ring. In this application, the arc-shaped support members can clamp the corresponding rotor support ring when needed, supporting and fixing the rotor to prevent loosening.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a fan stabilization structure and an air conditioner. Background Technology

[0002] Existing bedroom air conditioners are generally wall-mounted indoor units. To achieve faster air delivery, centrifugal fans or cross-flow fans can be installed in the indoor unit. However, whether it is a centrifugal fan or a cross-flow fan, during operation, the fan is installed in the volute of the indoor unit through bearings, and then the fan is directly driven by the motor shaft. This driving method will have problems such as bearing noise, bearing wear, and vibration due to the bearings.

[0003] To address the issues with fan bearings, shaftless magnetic levitation fans within air conditioners are currently a key research area. However, in shaftless magnetic levitation fans, the magnetic levitation mechanism does not function when the air conditioner is not powered on. Therefore, ensuring the fan blades remain relatively fixed inside the air conditioner to prevent collisions during transportation or when the user has stopped the unit is a pressing issue that needs to be resolved. Utility Model Content

[0004] This application provides a fan stabilization structure and an air conditioner to solve the fixation problem of existing shaftless magnetic levitation fans.

[0005] In a first aspect, this application provides a fan stabilization structure for use on a fan installed inside a volute, wherein the volute has a receiving space and an air outlet is provided on the volute.

[0006] A magnetic levitation device is provided on the inner wall of the vortex shell; the fan includes: a wind turbine, which is a cylindrical structure, and blades are provided on the side wall of the cylindrical structure of the wind turbine; the wind turbine includes: a magnetic levitation hub that cooperates with the magnetic levitation device, and at least two wind turbine support rings;

[0007] The wind turbine stabilization structure is fixed on the inner wall of the vortex shell and corresponds to the position of each wind turbine support ring. The wind turbine stabilization structure includes: two arc-shaped support members facing the wind turbine and two telescopic drive members. The arc surface of the arc support members facing the wind turbine is the support surface, and the telescopic drive members are fixed on the arc surface of the arc support members facing away from the wind turbine.

[0008] Each of the telescopic drive members can move its connected arc-shaped support members toward the wind turbine and clamp the corresponding wind turbine support ring; or, it can move its connected arc-shaped support members away from the wind turbine, with a gap between them and the corresponding wind turbine support ring.

[0009] Optionally, the support surface of the arc-shaped support member is arc-shaped, and a plurality of rolling elements that can be rolledly connected with the wind turbine support ring are provided on the support surface.

[0010] Optionally, the telescopic drive component includes: a telescopic rod, a drive motor, and a motor controller, wherein,

[0011] The first end of the telescopic rod is fixed to the arc surface of the arc-shaped support member facing away from the wind turbine; the other end of the telescopic rod is connected to the drive shaft of the drive motor.

[0012] The motor controller is connected to the drive motor. The motor controller outputs an extension signal to the drive motor, which drives the arc-shaped support to move toward the wind turbine and clamp the corresponding wind turbine support ring; or, the motor controller outputs a retraction signal to the drive motor, which drives the arc-shaped support away from the wind turbine, so that there is a gap between it and the corresponding wind turbine support ring.

[0013] Optionally, the telescopic drive component further includes: a pressure sensor; the pressure sensor is disposed on the arc surface of the arc-shaped support component facing the wind turbine, on the support surface, between the telescopic rod and the arc-shaped support component, or between the telescopic rod and the drive shaft of the drive motor;

[0014] When the drive motor moves the arc-shaped support member toward the wind turbine, the pressure sensor detects the support pressure on the arc surface of the arc-shaped support member facing the wind turbine, between the telescopic rod and the arc-shaped support member, or between the telescopic rod and the drive shaft of the drive motor.

[0015] When the supporting pressure exceeds a preset pressure threshold, the pressure sensor outputs a stop driving signal and sends it to the drive motor to stop the drive motor.

[0016] Optionally, the wind turbine stabilization structure further includes an electromagnetic controller, which is connected to the drive motor in the magnetic levitation device and each wind turbine fixing device;

[0017] After receiving the wind turbine stop signal, the electromagnetic controller outputs a drive signal to the motor controller in each wind turbine fixing device, so that the motor controller outputs an extension signal and drives the motor to move the arc-shaped support towards the wind turbine; after outputting the drive signal for a first preset time, it outputs a power-off signal to the magnetic levitation device to de-energize the magnetic levitation device.

[0018] After receiving the wind turbine drive signal, the electromagnetic controller outputs an energizing signal to the magnetic levitation device, so that the wind turbine is levitated by magnetic levitation between the magnetic levitation device and the magnetic levitation hub; after outputting the energizing signal for a second preset time, it outputs a stop drive signal to the motor controller in each wind turbine fixing device, so that the motor controller outputs a retraction signal and drives the motor to move the arc-shaped support away from the wind turbine.

[0019] Optionally, it also includes: a stabilization controller and two sets of photodetectors, the two sets of photodetectors being respectively disposed on the inner wall of the vortex shell outside the end faces at both ends of the wind turbine;

[0020] Each set of photodetectors includes a light emitter and multiple light receivers, wherein the position of the light emitter corresponds to the axis of the wind turbine when it is rotating stably; the light emitter can send light along the axial direction of the vortex shell toward the end face of the wind turbine, and the light is reflected off the end face of the wind turbine;

[0021] The intersection of the optical axis of the light emitter and the end face is the center of a circle, and multiple concentric circle regions are arranged on the end faces of both ends of the wind turbine with the center of the circle as the center.

[0022] The plurality of optical receivers are arranged sequentially outward from the optical transmitter, and each concentric circle region corresponds to at least one optical receiver in the direction of the axis of the vortex shell.

[0023] Optionally, the intersection of the optical axis of the light emitter and the end face is the center of a circle. Multiple concentric circle regions are arranged on the end faces of both ends of the wind turbine with the center of the circle as the center. The concentric circle regions include: a stabilization region, an adjustment region, and a maintenance region. The stabilization region, the adjustment region, and the shutdown maintenance region are distributed sequentially outward from the center of the circle.

[0024] Determining the operating state of the wind turbine based on the location of the reflection area includes:

[0025] If the state region is a stable region, the operating state of the wind turbine is determined to be a stable state;

[0026] If the state region is an adjustment region, the operating state of the wind turbine is determined to be a state that needs adjustment;

[0027] If the state area is a maintenance area, the operating state of the wind turbine is determined to be a shutdown and maintenance state.

[0028] Optionally, a magnetic levitation device and a wind turbine electromagnetic drive device are provided on the inner wall of the vortex shell, and the method further includes:

[0029] When the wind turbine is in a state that requires adjustment, an attitude adjustment signal is sent to the magnetic levitation device;

[0030] When the wind turbine is in a shutdown and maintenance state, a shutdown signal is sent to the wind turbine electromagnetic drive device to stop the wind turbine from rotating.

[0031] Optionally, upon receiving a wind turbine shutdown signal, the method further includes:

[0032] A drive signal is output to the motor controller in each wind turbine fixing device, so that the motor controller outputs an extension signal and drives the motor to move the arc-shaped support toward the wind turbine;

[0033] After outputting the drive signal, start the timer and determine whether the timer duration is greater than the first preset time.

[0034] If the timing duration exceeds the first preset time, a power-off signal is output to the magnetic levitation device to de-energize it.

[0035] Thirdly, this application provides an air conditioner, including a fan stabilization control device as provided in any of the embodiments of the first aspect above.

[0036] The technical solutions provided in this application have the following advantages compared with the prior art:

[0037] The wind turbine stabilization structure provided in this embodiment is disposed on the inner wall of the vortex housing and includes: two arc-shaped support members facing the wind turbine and two telescopic drive members. Thus, when the wind turbine needs to be stopped, the telescopic drive members are simply controlled to move their respective connected arc-shaped support members toward the wind turbine and clamp the corresponding wind turbine support ring, thereby fixing the wind turbine. Furthermore, when the wind turbine needs to rotate, the telescopic drive members can be controlled to move their respective connected arc-shaped support members away from the wind turbine, with a gap between them and the corresponding wind turbine support ring, allowing the wind turbine to rotate while suspended in the air under magnetic levitation. This solves the problem of the wind turbine blades being relatively fixed inside the air conditioner when stationary, preventing collisions during transportation or when the user is not operating the air conditioner. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0041] Figure 1 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application;

[0042] Figure 2 for Figure 1 A cross-sectional view of the AA surface;

[0043] Figure 3 This is a schematic diagram of the structure of the wind turbine end provided in an embodiment of this application;

[0044] Figure 4 A cross-sectional view of the arc-shaped support member provided in the embodiments of this application;

[0045] Figure 5 This is a flowchart illustrating a wind turbine stability control method provided in an embodiment of this application. Detailed Implementation

[0046] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0048] To address the technical problem in existing technologies where the fan blades cannot be relatively fixed inside the air conditioner when the magnetic levitation system is not in operation and the air conditioner is not powered on, this application provides a fan stabilization structure, a fan control method, and an air conditioner.

[0049] Figure 1 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application; Figure 2 for Figure 1 A cross-sectional view of the AA surface; Figure 3This is a schematic diagram of the structure of the wind turbine end provided in an embodiment of this application.

[0050] See Figures 1-3 As shown in the embodiment of this application, 10 is an air conditioner, and the air conditioner 10 includes: a vortex housing 100 and a fan wheel 200, wherein the fan wheel 200 is installed inside the vortex housing 100.

[0051] See Figure 2 As shown, the vortex shell 100 is provided with a receiving space 104. The receiving space 104 can be square or cylindrical, matching the cylindrical structure of the wind turbine. However, the size of the receiving space 104 is larger than the size of the wind turbine 10. For example, if the receiving space is cylindrical, the inner diameter of the receiving space is larger than the outer diameter of the wind turbine 10.

[0052] An air outlet 105 is provided on the volute 100, such as Figure 2 As shown, the air outlet 105 can be located at the bottom of the volute 100. In other embodiments, the air outlet 105 can also be located on the side wall or top of the volute. The fan 200 rotates inside the volute, and the generated air is blown out through the air outlet 105.

[0053] In this embodiment, the wind turbine 200 has a cylindrical structure, and blades are provided on the side wall of the cylindrical structure. When the wind turbine rotates, the blades can rotate to generate wind. In this embodiment, the wind turbine 200 is suspended inside the vortex housing 100 by magnetic levitation, which avoids the wear and noise problems that exist when the wind turbine is fixed by bearings.

[0054] A magnetic levitation drive device 102 is also provided inside the vortex shell, and a magnetic levitation drive section 201 is provided on the wind turbine. The magnetic levitation drive device 102 can be an excitation coil, which can be regarded as a stator. The wind blades on the magnetic levitation drive section 201 are metal blades. Therefore, the magnetic levitation drive section 201 is equivalent to a cage rotor, which can be driven to rotate under the action of the stator of the excitation coil.

[0055] See Figure 1 As shown, a magnetic levitation device 101 is provided on the inner wall of the vortex shell. The magnetic levitation device 101 can be an electromagnetic coil or a permanent magnet. Regardless of whether the magnetic levitation device is an electromagnetic coil or a permanent magnet, the magnetic levitation device 101 is arranged in a ring on the inner wall of the vortex shell. Furthermore, when the magnetic levitation device is a permanent magnet, there can be multiple permanent magnets with different magnetic poles, and the permanent magnets are evenly distributed on the ring inside the vortex shell.

[0056] See Figure 1As shown, a magnetic levitation hub 203 and at least two wind turbine support rings 202 are provided on the wind turbine. The number of magnetic levitation hubs 203 is equal to the number of magnetic levitation devices 101. Preferably, the magnetic levitation hubs 203 are symmetrically arranged around the center point on the axis of the wind turbine to avoid uneven force on the wind turbine during magnetic levitation, which could lead to displacement. In this embodiment, the magnetic levitation hub 203 can be made of iron to allow for levitation between it and the magnetic levitation device 101.

[0057] See Figure 1 As shown in this embodiment, there are two wind turbine support rings 202, located at both ends of the wind turbine 200. This is also to ensure even force distribution on the wind turbine support chamber. In other embodiments of this application, when there are three wind turbine support rings 202, the third wind turbine support ring can be located in the middle of the wind turbine. When there are multiple wind turbine support rings, they are symmetrically arranged around the center point on the axis of the wind turbine.

[0058] See Figure 2 As shown, the wind turbine stabilization structure 300 is fixed to the inner wall of the vortex casing 100. Each wind turbine stabilization structure 300 corresponds to the position of each wind turbine support ring 202. Figure 2 As shown in the embodiment of this application, the wind turbine stabilization structure 300 includes: two arc-shaped support members 301 facing the wind turbine and two telescopic drive members. The arc surface of the arc-shaped support member 301 facing the wind turbine 200 is the support surface (the concave surface of the arc surface in the figure), and the telescopic drive members are fixed on the arc surface of the arc-shaped support member facing away from the wind turbine (the convex surface of the arc surface in the figure). In specific applications, each telescopic drive member can drive its connected arc-shaped support member 301 to move towards the wind turbine 200 and clamp the corresponding wind turbine support ring 202. In addition, the telescopic drive members can also drive their connected arc-shaped support members 301 away from the wind turbine 200, and there is a gap between them and the corresponding wind turbine support ring 202, that is, there is no contact between them.

[0059] The wind turbine stabilization structure provided in this embodiment is disposed on the inner wall of the vortex housing and includes: two arc-shaped support members facing the wind turbine and two telescopic drive members. Thus, when the wind turbine needs to be stopped, the telescopic drive members are simply controlled to move their respective connected arc-shaped support members toward the wind turbine and clamp the corresponding wind turbine support ring, thereby fixing the wind turbine. Furthermore, when the wind turbine needs to rotate, the telescopic drive members can be controlled to move their respective connected arc-shaped support members away from the wind turbine, with a gap between them and the corresponding wind turbine support ring, allowing the wind turbine to rotate while suspended in the air under magnetic levitation. This solves the problem of the wind turbine blades being relatively fixed inside the air conditioner when stationary, preventing collisions during transportation or when the user is not operating the air conditioner.

[0060] See Figure 2 As shown in the embodiment of this application, since the cross-sectional shape of the wind turbine is usually circular, the support surface of the arc-shaped support member 301 is also arc-shaped (usually a segment of a circle). Furthermore, to reduce the friction between the support surface and the wind turbine support ring 202, as... Figure 4 As shown, multiple rolling elements 302 that can be tactilely connected to the wind turbine support ring can be provided on the support surface. In this embodiment, the rolling element 302 can be a ball or a roller. Regardless of whether it is a ball or a roller, a groove 305 needs to be provided on the support surface. The rolling element 302 is snapped into the groove 305 and will not come out of the groove 305.

[0061] like Figure 2 As shown in the embodiment, the telescopic drive component includes: a telescopic rod 304, a drive motor 303, and a motor controller (not shown in the figure). It can be seen that the first end of the telescopic rod 304 is fixed to the arc-shaped support 301 on the arc surface facing away from the wind turbine 200. The other end of the telescopic rod 304 is connected to the drive shaft (not shown in the figure) of the drive motor 303, which can be a telescopic shaft, to push the telescopic rod 304 to extend or retract.

[0062] The motor controller is connected to the drive motor 303. In this embodiment, the motor controller outputs an extension signal and sends it to the drive motor 303. Upon receiving the extension signal, the drive motor 303 moves the arc-shaped support 301 toward the wind turbine 200 and clamps the corresponding wind turbine support ring 202, thus fixing the wind turbine 200. Conversely, when the motor controller outputs a retraction signal and sends it to the drive motor 303, the drive motor 303 moves the arc-shaped support away from the wind turbine 200, thus creating a gap between it and the corresponding wind turbine support ring 202. The specific size of this gap can be set as needed; generally, it can be set to 1cm-3cm.

[0063] In the aforementioned embodiments, the arc-shaped support member 301 can clamp the wind turbine support ring 202. In specific applications, determining whether the clamping is secure requires separate judgment. Therefore, in this embodiment, the telescopic drive member further includes a pressure sensor (not shown in the figure). The purpose of the pressure sensor is to detect the compressive force between the telescopic drive member moving towards the wind turbine 200 and the wind turbine support ring 202. Therefore, in this embodiment, the pressure sensor can be positioned in multiple locations, as long as it is in the direction of force transmission to the wind turbine support ring 202. For example, the pressure sensor can be positioned on the arc surface of the arc-shaped support member facing the wind turbine as the support surface; or, the pressure sensor can be positioned between the telescopic rod and the arc-shaped support member; or, the pressure sensor can be positioned between the telescopic rod and the drive shaft of the drive motor.

[0064] In this embodiment, when the drive motor moves the arc-shaped support member toward the wind turbine, the pressure sensor detects the support pressure on the arc surface of the arc-shaped support member facing the wind turbine, between the telescopic rod and the arc-shaped support member, or between the telescopic rod and the drive shaft of the drive motor. When the support pressure is greater than a preset pressure threshold, the pressure sensor outputs a stop drive signal and sends it to the drive motor to stop the drive motor.

[0065] Since the purpose of the arc-shaped support 301 is to clamp the wind turbine support ring 202 and prevent the wind turbine from shaking, the preset pressure threshold does not need to be set too high. Under normal circumstances, the preset pressure threshold can be set to 0.002-0.005 Pa, which can maintain clamping and allow appropriate rotation, while avoiding damage to the arc-shaped support or the wind turbine support ring 202.

[0066] In this embodiment, by setting a pressure sensor, the pressure of the arc-shaped support 301 moving toward the wind turbine 200 can be detected and fed back, so as to avoid the force of clamping the wind turbine support ring 202 being too large, which would cause damage to the equipment.

[0067] In other embodiments of this application, the distance traveled by the arc-shaped support 301 toward the wind turbine 200 can also be determined. For example, when the arc-shaped support 301 moves toward the wind turbine 200, the distance traveled each time is fixed. Similarly, after the movement, the arc-shaped support 301 can clamp the wind turbine support ring 202.

[0068] In the aforementioned embodiments of this application, the wind turbine stabilization structure can clamp or tighten the wind turbine support ring 202 in a static state via the arc-shaped support member 301. In practical applications, it is usually necessary to clamp the wind turbine when it stops rotating during operation, or to release the clamp when the wind turbine starts rotating from a standstill. Waiting for the wind turbine to come to a complete stop before control is time-consuming. To address this, the wind turbine stabilization structure in this application embodiment further includes an electromagnetic controller connected to the magnetic levitation device and the drive motor in each wind turbine fixing device.

[0069] The magnetic levitation device here can be an electromagnetic coil. When the electromagnetic coil is energized, it can magnetically levitate the magnetic levitation hub on the wind turbine, causing the wind turbine to levitate. When the electromagnetic coil is de-energized, the wind turbine will no longer levitate.

[0070] In this embodiment of the application, when the wind turbine needs to be stopped, after receiving the wind turbine stop signal, the electromagnetic controller outputs a drive signal to the motor controller in each wind turbine fixing device, so that the motor controller outputs an extension signal and drives the motor to move the arc-shaped support toward the wind turbine; after outputting the drive signal for a first preset time, it outputs a power-off signal to the magnetic levitation device to de-energize the magnetic levitation device.

[0071] The first preset time can be determined based on the drive motor's driving time, generally between 3 and 10 seconds. With the above settings, when the wind turbine is rotating, after the electromagnetic controller receives the wind turbine stop signal, it does not first control the magnetic levitation device to cut off power. Instead, it first controls the motor controller in the wind turbine stabilization structure to drive the drive motor 303, which in turn drives the arc-shaped support component to clamp the wind turbine support ring. Because there are rolling elements between the wind turbine support ring and the arc-shaped support component, the wind turbine can rotate under the support of the arc-shaped support component. After the wind turbine support component has clamped the wind turbine support ring for a period of time, it outputs a power-off signal to the magnetic levitation device. At this time, after the magnetic levitation power-off device is de-energized, the wind turbine will not wobble due to the action of the arc-shaped support component.

[0072] In addition, when the wind turbine needs to be started, the electromagnetic controller receives the wind turbine drive signal and outputs an energizing signal to the magnetic levitation device so that the wind turbine is levitated by magnetic levitation between the magnetic levitation device and the magnetic levitation hub. After the second preset time after outputting the energizing signal, the controller outputs a stop drive signal to the motor controller in each wind turbine fixing device so that the motor controller outputs a retraction signal and drives the motor to move the arc-shaped support away from the wind turbine.

[0073] The second preset time can be determined based on the wind turbine's start-up time; for example, the start-up time of a typical wind turbine rotor is 10-20 seconds. With the above settings, when the wind turbine is stationary, after receiving the wind turbine drive signal, the electromagnetic controller does not first drive the wind turbine rotor to rotate. Instead, it first energizes the magnetic levitation device, creating magnetic levitation between the device and the hub, thus supporting the rotor. Then, it removes the support from the rotor stabilization structure. After the second preset time following the output of the energization signal, the magnetic levitation device can completely levitate the rotor. Then, it outputs a stop drive signal to the motor controller in each rotor fixing device, stopping the rotor stabilization structure from supporting the rotor.

[0074] In this embodiment of the application, considering the stability of the wind turbine during rotation, see [reference needed]. Figure 1 and 3 As shown, the wind turbine stabilization structure also includes: a stabilization controller (not shown in the figure) and two sets of photodetectors 103, which are respectively disposed on the inner wall of the vortex shell 100 outside the end faces at both ends of the wind turbine.

[0075] See Figure 3 As shown, each group of photodetectors includes a light emitter 1031 and multiple light receivers 1032, wherein the position of the light emitter 1031 corresponds to the axis of the wind turbine during stable rotation. See also Figure 3 As shown in the figure, 205 is the axis of the wind turbine when it is rotating stably, which is also the axis of the vortex shell. The intersection of the axis and the inner wall of the vortex shell is the installation position of the light emitter 1013. When the wind turbine is rotating stably, the axis of the wind turbine coincides with the axis of the vortex shell. In this embodiment, the light emitter 1013 can be a laser emitter.

[0076] In this embodiment, the light emitter 1031 can send light rays along the axial direction of the vortex housing 100 onto the end face 204 of the wind turbine. At this time, the light rays are reflected off the end face of the wind turbine. See also... Figure 2 As shown, the intersection of the optical axis of the light emitter 1031 and the end face 204 is the center of a circle. Multiple concentric circular regions are arranged on the end faces of both ends of the wind turbine, centered on this center. In this embodiment, there are three concentric circular regions, such as... Figure 2 As shown, three concentric circles enclose three regions, including: a stable region B, an adjustment region C, and a maintenance region D; and the stable region B, the adjustment region C, and the shutdown maintenance region D are distributed sequentially outward from the center of the circles, wherein the stable region B is circular, the adjustment region is annular, and the maintenance region is also annular.

[0077] In this embodiment, when the wind turbine is rotating stably, its axis coincides with the axis of the vortex casing; concentric circular regions can also be formed on the inner wall of the vortex casing opposite the end face of the wind turbine. See also Figure 3 As shown in the embodiment of this application, a plurality of optical receivers are arranged sequentially outward from the optical transmitter, and each concentric circle region on the vortex shell corresponds to at least one optical receiver in the direction of the axis of the vortex shell.

[0078] With the above setup, the light emitted by the light emitter 1031 will be reflected to the location of the light receiver 1032. This indicates that when the wind turbine is rotating stably, its axis coincides with the axis of the vortex shell. However, if the wind turbine is not rotating stably, the axis of the wind turbine and the axis of the vortex shell will deviate. In this case, the light emitted by the light emitter 1031 will have an angular deviation between the reflected light and the irradiated light after being reflected by the end face 204 of the wind turbine.

[0079] At this time, with Figure 3 For example, when the incident light beam strikes the end face 204 of the wind turbine at an incident angle θi, the reflection angle is θr. When the wind turbine is rotating stably, the incident angle θi = the reflection angle θr = 0. Ideally, after the wind turbine tilts, the incident and reflected light beams are perfectly symmetrical about the cross-section of the wind turbine's end face, i.e., θi = θr. However, when the wind turbine tilts, the tilt angle is the angle φ between the wind turbine's axis and the vortex shell axis. The reflection angle will shift, and the shift is Δθ = θi + θr, which is proportional to the tilt angle φ.

[0080] The relationship between the tilt angle φ and the reflection angle offset Δθ can be expressed as:

[0081] Δθ=2φ

[0082] Where Δθ is the offset of the reflection angle, and φ is the tilt angle of the wind turbine.

[0083] The tilt angle φ of the wind turbine can be determined by measuring the reflection angle offset Δθ.

[0084] φ = 0.5Δθ.

[0085] In this embodiment, once the location of the light receiver 1032 receiving the reflected light is determined, the distance L between the light receiver 1032 and the intersection point O of the vortex shell axis and the vortex shell sidewall can be known, and the center point of the wind turbine end face is P. Furthermore, based on the distance S between the intersection point O and the center point P of the wind turbine end face, tan(Δθ) = L / S can be calculated. Δθ can then be calculated using the inverse function, and consequently, the wind turbine's tilt angle φ can be calculated. After calculating the wind turbine's tilt angle, it can be sent to the magnetic levitation device to correct the wind turbine's angle. If the wind turbine's tilt angle is too large, the magnetic levitation device cannot correct it, and maintenance is required.

[0086] The wind turbine monitoring device provided in this application embodiment can also detect the stability of the wind turbine during operation, preventing damage to the wind turbine or its casing caused by unstable operation.

[0087] This application also provides a wind turbine stability control method, which is applied to the wind turbine stability structure described in any of the foregoing embodiments. See [link to relevant documentation]. Figure 5 As shown, the method may include the following steps.

[0088] S101, determine the operating status of the wind turbine.

[0089] The operating status of the wind turbine can be determined by the current of the electromagnetic drive device used to drive the wind turbine to rotate. The operating status of the wind turbine includes: rotating state and stationary state.

[0090] S102, when the wind turbine is rotating, after receiving the wind turbine stop signal, the motor controller outputs an extension signal and drives the motor to move the arc-shaped support toward the wind turbine and clamp the corresponding wind turbine support ring.

[0091] S103, when the wind turbine is stationary, upon receiving the wind turbine drive signal, the motor controller outputs a retraction signal and drives the motor to move the arc-shaped support away from the wind turbine, and a gap is provided between it and the corresponding wind turbine support ring.

[0092] The wind turbine stabilization structure provided in this application embodiment allows for easy fixation of the wind turbine when it needs to be stopped while rotating. Simply control the telescopic drive component to move the connected arc-shaped support components toward the wind turbine and clamp the corresponding wind turbine support ring. Furthermore, when the wind turbine needs to rotate from a stationary state, the telescopic drive component can be controlled to move the connected arc-shaped support components away from the wind turbine, with a gap between them and the corresponding wind turbine support ring. This allows the wind turbine to rotate while suspended in the air under magnetic levitation. This solves the problem of the wind turbine blades being relatively fixed inside the air conditioner when stationary, preventing collisions during transportation or when the user has stopped the machine.

[0093] In this embodiment of the application, when the wind turbine is initially stationary, the arc-shaped support member is clamped on the corresponding wind turbine support ring, forming a support for the wind turbine support ring.

[0094] In other embodiments of this application, in order to make the arc-shaped support member clamp the wind turbine support ring more securely, the wind turbine stabilization structure further includes: setting a pressure sensor on the arc surface of the arc-shaped support member facing the wind turbine as the support surface, between the telescopic rod and the arc-shaped support member, or between the telescopic rod and the drive shaft of the drive motor.

[0095] The method may also include the following steps:

[0096] S11. When the drive motor moves the arc-shaped support towards the wind turbine, the support pressure of the pressure sensor is detected;

[0097] S12. When the supporting pressure is greater than the preset pressure threshold, the drive motor stops driving the arc-shaped support member so that the arc-shaped support member clamps the corresponding wind turbine support ring.

[0098] In other embodiments of this application, after receiving the wind turbine drive signal, the method further includes:

[0099] S21. Output an energizing signal to the magnetic levitation device so that the wind turbine is levitated between the magnetic levitation device and the magnetic levitation hub using magnetic levitation.

[0100] S22. After the power-on signal is output, start timing and determine whether the timing duration is greater than the second preset time.

[0101] S23. If the timing duration exceeds the second preset time, output a stop drive signal to the motor controller in each wind turbine fixing device, so that the motor controller outputs a retraction signal and drives the motor to move the arc-shaped support away from the wind turbine.

[0102] In other embodiments of this application, upon receiving a wind turbine shutdown signal, the method further includes the following operations:

[0103] S31. Output a drive signal to the motor controller in each wind turbine fixing device, so that the motor controller outputs an extension signal and drives the motor to move the arc-shaped support toward the wind turbine;

[0104] S32. After outputting the drive signal, start the timer and determine whether the timer duration is greater than the first preset time.

[0105] S33. If the timing duration exceeds the first preset time, output a power-off signal to the magnetic levitation device to de-energize the magnetic levitation device.

[0106] In other embodiments of this application, the wind turbine stabilization device further includes: a stabilization controller and two sets of photodetectors, the two sets of photodetectors being respectively disposed on the inner wall of the vortex shell outside the end faces at both ends of the wind turbine; each set of photodetectors includes: a light emitter and multiple light receivers, wherein the position of the light emitter corresponds to the axis of the wind turbine when it rotates stably; the light emitter can send light along the axial direction of the vortex shell toward the end face of the wind turbine, and the light is reflected off the end face of the wind turbine;

[0107] In this embodiment of the application, the method further includes:

[0108] S41. Control the light emitter in each group of photodetectors to emit light that illuminates the end face of the corresponding wind turbine;

[0109] S42. Detect the reflected light received by multiple optical receivers;

[0110] S43. Determine the location of the light receiver that received the reflected light;

[0111] S44. Determine the angle between the reflected ray and the incident ray based on the positions of the light emitter and the light receiver.

[0112] In this embodiment of the application, when the location of the light receiver 1032 that receives the reflected light is determined, the distance L between the light receiver 1032 and the intersection point O of the vortex shell axis and the vortex shell sidewall can be known, and the center point of the wind turbine end face is P. In addition, based on the distance S between the intersection point O and the center point P of the wind turbine end face, tan(Δθ)=L / S can be calculated, and Δθ can be calculated through the inverse function.

[0113] S45. Calculate the deviation angle between the axis of the wind turbine and the axis of the vortex shell based on the included angle.

[0114] by Figure 3 For example, the incident light rays strike the end face 204 of the wind turbine at an incident angle θi, and the reflection angle is θr. Ideally, the incident and reflected light rays are perfectly aligned with the cross-section of the wind turbine's end face, i.e., θi = θr. However, when the wind turbine tilts, the tilt angle is the angle φ between the wind turbine's axis and the vortex shell axis. The reflection angle will shift, and the amount of shift is proportional to the tilt angle φ.

[0115] The relationship between the tilt angle φ and the reflection angle offset Δθ can be expressed as:

[0116] Δθ=2φ

[0117] Where Δθ is the offset of the reflection angle, and φ is the tilt angle of the wind turbine.

[0118] The tilt angle φ of the wind turbine can be determined by measuring the reflection angle offset Δθ.

[0119] φ = 0.5Δθ.

[0120] S46. Determine the operating state of the wind turbine based on the deviation angle.

[0121] In other embodiments of this application, the operating state of the wind turbine can also be determined based on the location of the optical receiver. Therefore, the method further includes:

[0122] S51. Control the light emitter in each group of photodetectors to emit light that illuminates the end face of the corresponding wind turbine;

[0123] S52. Detect the reflected light received by multiple optical receivers;

[0124] S53. Determine the corresponding state region based on the position of the optical receiver that receives the reflected light.

[0125] S54. Determine the operating state of the wind turbine based on the location of the state area.

[0126] In this embodiment, the intersection of the optical axis of the light emitter and the end face is the center of a circle. Multiple concentric circular regions are arranged on the end faces of both ends of the wind turbine with the center of the circle as the center. The concentric circular regions include: a stabilization region, an adjustment region, and a maintenance region. The stabilization region, the adjustment region, and the shutdown maintenance region are distributed sequentially outward from the center of the circle.

[0127] The operating status of the wind turbine can be determined in the following ways:

[0128] Method 1: If the state region is a stable region, the operating state of the wind turbine is determined to be a stable state;

[0129] Method 2: If the state area is an adjustment area, determine that the operating state of the wind turbine is a state that needs adjustment;

[0130] Method 3: If the state area is a maintenance area, determine that the wind turbine's operating state is a shutdown and maintenance state.

[0131] In addition, a magnetic levitation device and a wind turbine electromagnetic drive device are provided on the inner wall of the vortex shell. After the operating state of the wind turbine is determined, the state of the wind turbine can also be adjusted. For example, when the operating state of the wind turbine is a state that needs adjustment, an attitude adjustment signal is sent to the magnetic levitation device.

[0132] Alternatively, when the wind turbine is in a shutdown and maintenance state, a shutdown signal is sent to the wind turbine electromagnetic drive device to stop the wind turbine from rotating.

[0133] This application also provides an air conditioner, including the fan stabilization control device described in any of the foregoing embodiments.

[0134] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0135] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented using software plus a general-purpose hardware platform, or of course, using hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0136] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0137] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fan stabilizing structure applied to a fan installed in a scroll, characterized by, The vortex shell has an internal accommodating space and an air outlet on its surface. A magnetic levitation device is provided on the inner wall of the vortex shell; the fan includes: a wind turbine, which is a cylindrical structure, and blades are provided on the side wall of the cylindrical structure of the wind turbine; the wind turbine includes: a magnetic levitation hub that cooperates with the magnetic levitation device, and at least two wind turbine support rings; The wind turbine stabilization structure is fixed on the inner wall of the vortex shell and corresponds to the position of each wind turbine support ring. The wind turbine stabilization structure includes: two arc-shaped support members facing the wind turbine and two telescopic drive members. The arc surface of the arc support members facing the wind turbine is the support surface, and the telescopic drive members are fixed on the arc surface of the arc support members facing away from the wind turbine. Each of the telescopic drive members can move its connected arc-shaped support members toward the wind turbine and clamp the corresponding wind turbine support ring; or, it can move its connected arc-shaped support members away from the wind turbine, with a gap between them and the corresponding wind turbine support ring.

2. The fan stabilization structure of claim 1, wherein, The support surface of the arc-shaped support is arc-shaped, and multiple rolling elements that can be tactilely connected to the wind turbine support ring are provided on the support surface.

3. The fan stabilization structure of claim 1, wherein The telescopic drive component includes: a telescopic rod, a drive motor, and a motor controller, wherein... The first end of the telescopic rod is fixed to the arc surface of the arc-shaped support member facing away from the wind turbine; the other end of the telescopic rod is connected to the drive shaft of the drive motor. The motor controller is connected to the drive motor. The motor controller outputs an extension signal to the drive motor, which drives the arc-shaped support to move toward the wind turbine and clamp the corresponding wind turbine support ring; or, the motor controller outputs a retraction signal to the drive motor, which drives the arc-shaped support away from the wind turbine, so that there is a gap between it and the corresponding wind turbine support ring.

4. The fan stabilization structure of claim 3, wherein, The telescopic drive component further includes: a pressure sensor; the pressure sensor is configured on the arc surface of the arc-shaped support component facing the wind turbine, on the support surface, between the telescopic rod and the arc-shaped support component, or between the telescopic rod and the drive shaft of the drive motor; When the drive motor moves the arc-shaped support member toward the wind turbine, the pressure sensor detects the support pressure on the arc surface of the arc-shaped support member facing the wind turbine, between the telescopic rod and the arc-shaped support member, or between the telescopic rod and the drive shaft of the drive motor. When the supporting pressure exceeds a preset pressure threshold, the pressure sensor outputs a stop driving signal and sends it to the drive motor to stop the drive motor.

5. The fan stabilization structure of claim 4, wherein, The wind turbine stabilization structure also includes an electromagnetic controller, which is connected to the drive motor in the magnetic levitation device and each wind turbine fixing device; After receiving the wind turbine stop signal, the electromagnetic controller outputs a drive signal to the motor controller in each wind turbine fixing device, so that the motor controller outputs an extension signal and drives the motor to move the arc-shaped support towards the wind turbine; after outputting the drive signal for a first preset time, it outputs a power-off signal to the magnetic levitation device to de-energize the magnetic levitation device. After receiving the wind turbine drive signal, the electromagnetic controller outputs an energizing signal to the magnetic levitation device, so that the wind turbine is levitated by magnetic levitation between the magnetic levitation device and the magnetic levitation hub; after outputting the energizing signal for a second preset time, it outputs a stop drive signal to the motor controller in each wind turbine fixing device, so that the motor controller outputs a retraction signal and drives the motor to move the arc-shaped support away from the wind turbine.

6. The fan stabilization structure of claim 1, wherein Also includes: A stabilizing controller and two sets of photodetectors, the two sets of photodetectors being respectively installed on the inner wall of the vortex shell outside the end faces at both ends of the wind turbine; Each set of photodetectors includes a light emitter and multiple light receivers, wherein the position of the light emitter corresponds to the axis of the wind turbine when it is rotating stably; the light emitter can send light along the axial direction of the vortex shell toward the end face of the wind turbine, and the light is reflected off the end face of the wind turbine; The intersection of the optical axis of the light emitter and the end face is the center of a circle, and multiple concentric circle regions are arranged on the end faces of both ends of the wind turbine with the center of the circle as the center. The plurality of optical receivers are arranged sequentially outward from the optical transmitter, and each concentric circle region corresponds to at least one optical receiver in the direction of the axis of the vortex shell.

7. The fan stabilization structure according to claim 1, characterized in that, A magnetic levitation drive device is also installed inside the vortex shell, and a magnetic levitation drive section is installed on the wind turbine. The wind blades on the magnetic levitation drive section are metal blades, and the magnetic levitation drive section can rotate under the electromagnetic action of the magnetic levitation drive device.

8. An air conditioner characterized by comprising: Includes the wind turbine stability control structure as described in any one of claims 1-7.

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