Wall-mounted self-powered eddy current vibration damping-advertising board combination device

Abstract

The application discloses a wall-mounted self-powered eddy current damping-advertising board combined device, which comprises a shell, a display board and an eddy current damping system. The shell is flat and is installed in a wall-mounted manner and has a closed cavity inside. The display board is arranged on the front of the shell and is powered by commercial power in normal state and displays advertisements. The eddy current damping system is arranged in the closed cavity and can generate induced current and eddy current damping to reduce vibration under vibration excitation. A disaster emergency system is arranged in the closed cavity and can recover and store the induced current of the eddy current damping system, can supply power to the display board when commercial power is cut off, and can make the display board switch to display emergency evacuation instructions or disaster emergency information broadcast. The self-powered eddy current damping and the advertising board are combined, which not only can play a role in advertising, but also can play a role in damping. The wall-mounted installation does not occupy the internal use space of the building structure, can convert the mechanical energy of building vibration into emergency reserve electric energy, and can serve as an emergency equipment in the case of power cut in extreme disasters.

Description

Technical Field

[0001] This application belongs to the field of engineering vibration reduction, specifically relating to a wall-mounted self-powered electric eddy current vibration reduction-advertising board combination device. Background Technology

[0002] During long-term service, building structures are inevitably subjected to disturbances from dynamic loads such as wind, earthquakes, and vehicle vibrations. Numerous building structure damage accidents caused by dynamic loads have occurred both domestically and internationally, resulting in serious losses and secondary disasters. Therefore, it is necessary to conduct research and development and application of vibration reduction technologies for building structures.

[0003] Regarding vibration reduction in building structures, relevant research has been conducted both domestically and internationally, resulting in the proposal of several different types of vibration damping devices. These devices currently face the following main problems: 1) Existing vibration damping devices are typically installed in the structure using various methods such as herringbone bracing, diagonal bracing, and cross bracing, inevitably occupying usable space and affecting the building's functionality. 2) Existing vibration damping devices typically convert the mechanical energy of building vibrations into heat energy through damping work, which is then wasted.

[0004] In addition, existing vibration damping devices have their damping force and internal stiffness parameters completely fixed when they leave the factory, which limits their versatility in engineering applications. The vibration control force can only be adjusted by simply increasing the overall number of dampers. Summary of the Invention

[0005] The purpose of this application is to provide a wall-mounted self-powered eddy current vibration damping-advertising board combination device. This application combines self-powered eddy current vibration damping with an advertising board, which can not only play the role of advertising, but also play the role of vibration damping. It adopts wall-mounted installation, which does not occupy the internal space of the building structure. It can convert the mechanical energy of building vibration into emergency reserve electrical energy and serve as an emergency device in the event of power outages during extreme disasters.

[0006] The technical solution adopted in this application is: A wall-mounted, self-powered eddy current vibration damping-advertising board combination device includes a housing, a display board, an eddy current vibration damping system, and a disaster emergency system. The housing is flat and wall-mounted, with a sealed cavity inside. The display board is located on the front of the housing and is normally powered by mains electricity to display advertisements. The eddy current vibration damping system is located in the sealed cavity and can generate eddy current damping under vibration excitation to reduce vibration. The disaster emergency system is located in the sealed cavity and can recover and store the induced current of the eddy current vibration damping system. It can also power the display board when the mains power fails and allow the display board to switch to displaying emergency evacuation instructions or emergency disaster broadcasts.

[0007] Preferably, the disaster emergency system includes an energy storage battery and a voltage regulator-control box. The voltage regulator-control box contains a rectifier module, a mains power status monitoring module, a storage module, and a microcontroller unit. The induced current of the eddy current damping system is rectified by the rectifier module and then stored by the energy storage battery. The mains power status monitoring module is used to detect the mains power status. The storage module is used to store disaster emergency information. The microcontroller unit is used to control the energy storage battery to supply power to the display board and allow the display board to retrieve and display the disaster emergency information stored in the storage module when the mains power status monitoring module detects a mains power failure.

[0008] Preferably, the eddy current vibration damping system includes an induction coil and a sliding permanent magnet mechanism; the induction coil is located on the front and rear surfaces of the sealed cavity; the sliding permanent magnet mechanism includes a carriage, a permanent magnet mounted on the carriage, pulleys located at the upper and lower ends of the carriage, and tuning springs located on the left and right sides of the carriage. The upper and lower surfaces of the sealed cavity are provided with longitudinal guide rails, and the pulleys at the upper and lower ends are respectively matched with the corresponding guide rails. The tuning springs on the left and right sides are respectively connected to the left and right sides of the sealed cavity. The tuning springs are used to adjust the natural frequency of the sliding permanent magnet mechanism to be at or close to the natural frequency of the building structure. The carriage can move along the guide rails through the pulleys under vibration excitation. When the carriage moves, the permanent magnet can continuously sweep across the induction coils on the front and rear sides, thereby inducing the induction coils to generate electricity and producing eddy current damping to reduce vibration.

[0009] Preferably, the carriage adopts a frame structure with adjustable width and height. The interior of the frame structure is the installation space for permanent magnets, and the exterior is connected to pulleys and tuning springs. The permanent magnets are mounted on the support plate in an array combination. The support plate is arranged in multiple layers on the installation space and adopts a modular and replaceable structure.

[0010] Preferably, the carriage is composed of four L-shaped support frames spliced ​​together. The four support frames are distributed at the four corners and form a frame structure. The width and height are adjustable by bolts and bolt holes along the line between adjacent support frames.

[0011] Preferably, the tuning spring is provided with a slide connecting block and a housing connecting block at both ends. The slide connecting block is slidably fitted on the side of the slide and locked in position by a locking member. Vertical slots are provided on the left and right sides of the sealing cavity. The housing connecting block is slidably fitted in the slots and locked in position by a locking member.

[0012] Preferably, the housing is assembled in a sealed manner from a front panel, a back panel, a top panel, a bottom panel, and a pair of side panels. The display panel is installed on the outer side of the front panel, and the emergency response system and induction coil are installed on the inner side. The induction coil is installed on the inner side of the back panel. Guide rails are provided on the inner sides of the top and bottom panels. Slots are provided on the inner sides of the two side panels. The side panel near the emergency response system has wiring holes one to three. Wiring hole one is near the back panel, and wiring holes two and three are near the front panel. The induction output wire of the induction coil on the front panel is directly connected to the emergency response system in the sealed cavity. The induction output wire of the induction coil on the back panel first passes through wiring hole one out of the sealed cavity, and then passes through wiring hole two into the sealed cavity to avoid the slots and connect to the emergency response system. The power supply output wire of the emergency response system passes through wiring hole three out of the sealed cavity and is connected to the display panel. The holes for the induction output wire and the power supply output wire are sealed.

[0013] Preferably, the top plate and the bottom plate are completely identical vertically symmetrical structures, and the two side plates are completely identical horizontally symmetrical structures except for the first to third thread holes.

[0014] Preferably, the pulleys are distributed at each corner of the upper and lower ends of the carriage, and the pulleys at the upper and lower ends are aligned one by one. The pulleys have a self-lubricating structure, the guide rail adopts a low-friction groove structure, and the pulleys are embedded in the guide rail.

[0015] Preferably, the induction coil is made of pure copper, and multiple sets of induction coils are arranged closely along the vertical direction, with each set of induction coils being longitudinal in shape.

[0016] The beneficial effects of this application are: This application combines self-powered eddy current vibration damping with an advertising board. The device is flat and wall-mounted (thickness similar to a traditional advertising board). It adds vibration damping functionality to the traditional advertising board, serving not only as an advertising tool but also as a vibration damping device (generating eddy current damping under vibration excitation, reducing the building's acceleration response and peak displacement). This device does not occupy internal building space and can be widely used on the exterior or interior advertising walls of buildings, communication towers, and other building structures. Traditional dampers dissipate vibrational mechanical energy unnecessarily; this device effectively absorbs the building's vibrational mechanical energy. It is converted into emergency reserve power and serves as an emergency device during power outages caused by extreme disasters. In emergency situations where extreme disasters paralyze the municipal power grid, the disaster emergency system uses the stored power to power the display board and allows the display board to switch to displaying disaster emergency information, thereby instructing evacuation or broadcasting emergency disaster information. This realizes the switching of the display board from "commercial display" to "disaster emergency", which greatly improves the building's disaster prevention and emergency response capabilities. In this device, the eddy current vibration reduction system and the disaster emergency system are housed in a sealed cavity, which avoids the corrosion of precision components by rainwater, dust, etc., and achieves high reliability and maintenance-free operation over a long period of time.

[0017] The disaster emergency system converts the vibration mechanical energy that traditional dampers waste into valuable emergency electrical energy. Through mains power monitoring and automatic switching technology, the screen that normally plays commercial advertisements can automatically turn into a high-brightness evacuation indicator or disaster broadcast terminal the moment the power is cut off. This achieves "vibration reduction and structural protection → energy recovery → disaster relief and escape guidance", which significantly improves the building's disaster prevention and emergency response capabilities and the probability of human survival. At the same time, it has outstanding advantages of energy saving, environmental protection and economic efficiency.

[0018] The carriage, through the cooperation of upper and lower pulleys and guide rails, ensures that the system moves smoothly only in a preset direction (longitudinal) under external excitation, with a clear and controllable motion trajectory. The pulleys at the upper and lower ends cooperate with the guide rails, achieving both low-resistance translational guidance and lateral anti-derailment limiting, eliminating the risk of derailment or overturning under strong earthquakes. By adjusting the number / wire diameter of the tuning springs, changing the parameters of the induction coil, and adding or removing the weight of the permanent magnet, the natural frequency of the internal motion system can be flexibly adjusted, tuning the natural frequency of the sliding permanent magnet mechanism to (or close to) the natural frequency of the building structure, so that the system can generate resonance or near-resonance response under vibration excitation, maximizing energy absorption and dissipation efficiency, thereby achieving the best vibration reduction effect.

[0019] The carriage adopts a frame structure with adjustable width and height, combined with modular and replaceable permanent magnet support plates, achieving dual flexible adjustment of internal parameters and external dimensions, significantly improving the engineering adaptability and economy of the device. With the adjustment of the carriage, the width and height can be stretched or shortened according to the aspect ratio of the building wall advertising board, easily matching display boards of different sizes without changing the existing building design. By increasing or decreasing the number of permanent magnets, the total eddy current damping force of the device can be adjusted over a wide range without replacing the entire damper, adapting to the structural vibration control requirements of different intensities. By adjusting the permanent magnet counterweight or cooperating with the tuning spring, the system's natural frequency can be adaptively tuned to match the dynamic characteristics of different buildings. The multi-layered and modularly replaceable support plates compensate for the lack of horizontal travel by increasing the total magnetic field area, still generating strong eddy current damping force within a limited movement distance, even in confined spaces with a small aspect ratio (narrow and tall), meeting the vibration reduction performance requirements.

[0020] The positions of both ends of the tuning spring are adjustable, which can easily tune the natural frequency to the natural frequency of the building structure, and also allow the tuning spring to form a small tilt angle, introducing nonlinear stiffness into the system to cope with extreme displacement control under rare large earthquakes.

[0021] The housing and wiring scheme, through the design of "fully enclosed sealed structure + external wiring around the side plate", cleverly solves the spatial conflict between the internal adjustable mechanism and the cable layout while ensuring the overall corrosion resistance and maintenance-free performance of the device. It not only ensures the functional integrity of the housing connecting block that can be freely adjusted along the slot, but also achieves efficient and reliable transmission of induced power. Furthermore, during later maintenance, the side plate can be disassembled separately for cable inspection or replacement without disassembling the entire housing. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the wall-mounted self-powered eddy current vibration damping-advertising board combination device in this application. The back panel of the shell has been removed for easier observation.

[0024] Figure 2 This is a perspective view of the wall-mounted self-powered eddy current vibration damping-advertising board combination device in this application.

[0025] Figure 3 This is a schematic diagram of the front panel of the casing in this application.

[0026] Figure 4 This is a schematic diagram of the back panel of the housing in this application.

[0027] Figure 5 This is a schematic diagram of the top plate and floor of the shell in this application.

[0028] Figure 6 This is a schematic diagram of a pair of side plates of the housing in this application.

[0029] Figure 7 This is a schematic diagram of the sliding permanent magnet mechanism in this application.

[0030] Figure 8 This is a disassembled schematic diagram of the carriage of the sliding permanent magnet mechanism in this application.

[0031] Figure 9 This is a schematic diagram of the carriage connecting block and the housing connecting block of the sliding permanent magnet mechanism in this application.

[0032] Figure 10 This is a schematic diagram of the permanent magnet array mounted on the support plate in this application.

[0033] Figure 11This is a schematic diagram of the permanent magnet array in this application.

[0034] Figure 12 This is a schematic diagram illustrating the macroscopic application scenario of the wall-mounted self-powered eddy current vibration damping-advertising board combination device in a building structure.

[0035] In the picture: 100-Wall-mounted self-powered eddy current vibration damping and advertising board combination device; 10-Housing; 10a-Sealed cavity; 11-Front panel; 12-Back panel; 13-Top plate; 13a-Guide rail; 14-Bottom plate; 14a-Guide rail; 15-Side plate; 15a-Slot; 15b-Wire hole one; 15c-Wire hole two; 15d-Wire hole three; 20 - Display board; 30-Eddy current vibration reduction system; 31-Induction coil; 31a-Induction output line; 32-Slide carriage; 32a-Support frame; 32b-Bolt; 33-Permanent magnet; 34-Bearing plate; 35-Pulley; 36-Tuning spring; 37-Slide carriage connecting block; 37a-Locking element; 38-Housing connecting block; 38a-Locking element; 40 - Disaster emergency system; 41 - Energy storage battery; 41a - Power output line; 42 - Voltage regulator control box. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this application, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "threading hole one," "threading hole two," "threading hole three," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0042] Example 1 This application breaks through the limitations of traditional damper vibration reduction and deeply integrates three major functions: multimedia interaction, vibration control, energy recovery and power outage emergency safety protection. It constructs a wall-mounted self-powered electric eddy current vibration reduction-advertising board combination device 100. In terms of overall appearance, the device presents a flat rectangular box shape with a thin thickness. Its overall shape is no different from the traditional outdoor wall-mounted advertising boxes commonly found on the market.

[0043] In this application, as Figure 1 and Figure 2 As shown, the wall-mounted self-powered eddy current vibration damping-advertising board combination device 100 includes a housing 10, a display board 20, an eddy current vibration damping system 30, and a disaster emergency system 40; wherein: The housing 10 is flat and is wall-mounted, with a sealed cavity 10a inside. The display panel 20 is located on the front of the housing 10, and is normally powered by mains electricity and displays advertisements. The eddy current vibration reduction system 30 is installed in the sealed cavity 10a, which can induce electric current under vibration excitation and generate eddy current damping to reduce vibration. The disaster emergency system 40 is located in the sealed cavity 10a. It can recover and store the induced current of the eddy current damping system 30, and can supply power to the display board 20 when the mains power fails, and allow the display board 20 to switch to displaying emergency evacuation instructions or emergency disaster broadcasts.

[0044] Modern buildings (especially commercial complexes) often have numerous multimedia billboards hanging on their facades or interior walls. This application combines self-powered eddy current vibration damping with the billboards. The device is flat and wall-mounted (similar in thickness to traditional billboards). It adds vibration damping functionality to traditional billboards, serving not only as an advertising tool but also as a vibration damping mechanism (generating eddy current damping under vibration excitation to reduce the building's acceleration response and peak displacement). This device does not occupy internal space within the building structure and can be widely used on the facades or interior walls of various building structures such as buildings and communication towers.

[0045] Furthermore, traditional dampers dissipate vibrational mechanical energy in vain. This device can convert the building's vibrational mechanical energy into emergency reserve electrical energy and act as an emergency device during power outages caused by extreme disasters. In an emergency where an extreme disaster causes the municipal main power grid to be paralyzed, the disaster emergency system 40 uses the reserve electrical energy to power the display board 20 and allows the display board 20 to switch to displaying disaster emergency information, thereby instructing evacuation or broadcasting emergency disaster information. This realizes the switching of the display board from "commercial display" to "disaster emergency", which greatly improves the building's disaster prevention and emergency response capabilities.

[0046] Furthermore, in this device, the eddy current vibration reduction system 30 and the emergency response system 40 are housed within a sealed cavity 10a, which prevents rainwater, dust, and other contaminants from corroding the precision components, thus achieving high reliability and maintenance-free operation over a long period.

[0047] In this embodiment, preferably, as follows: Figure 1 and Figure 3As shown, the disaster emergency system 40 includes an energy storage battery 41 and a voltage regulator-control box 42. The voltage regulator-control box 42 contains a rectifier module, a mains power status monitoring module, a storage module, and a microcontroller unit. The induced current of the eddy current damping system 30 is rectified by the rectifier module and then stored by the energy storage battery 41. The mains power status monitoring module is used to detect the mains power status. The storage module is used to store disaster emergency information. The microcontroller unit is used to control the energy storage battery 41 to supply power to the display board 20 when the mains power status monitoring module detects a mains power failure and to allow the display board 20 to retrieve and display the disaster emergency information in the storage module (for example, the screen can display high-contrast emergency images such as "emergency evacuation direction arrows" or "earthquake and wind protection safety warnings", providing crucial audio-visual guidance in the darkness of a city-wide power outage, buying golden time for people to escape, and greatly improving the disaster resilience of modern urban buildings). The disaster emergency system 40 converts the vibration mechanical energy that traditional dampers waste into valuable emergency electrical energy. Through mains power monitoring and automatic switching technology, the screen that normally plays commercial advertisements can automatically turn into a high-brightness evacuation indicator or disaster broadcast terminal the moment the power is cut off. This achieves "vibration reduction and structural protection → energy recovery → disaster relief and escape guidance", which significantly improves the building's disaster prevention and emergency response capabilities and the probability of human survival. At the same time, it has outstanding advantages of energy saving, environmental protection and economic efficiency.

[0048] In this embodiment, preferably, as follows: Figure 1 , Figures 3 to 5 , Figure 7 As shown, the eddy current vibration reduction system 30 includes an induction coil 31 and a sliding permanent magnet mechanism. The induction coil 31 is disposed on the front and rear surfaces within the sealed cavity 10a. The sliding permanent magnet mechanism includes a slide 32, a permanent magnet 33 mounted on the slide 32, pulleys 35 disposed at the upper and lower ends of the slide 32, and tuning springs 36 disposed on the left and right sides of the slide 32. Longitudinal guide rails (13a, 14a) are provided on the upper and lower surfaces within the sealed cavity 10a, and the pulleys 35 at the upper and lower ends respectively cooperate with the corresponding guide rails. On the rails (13a, 14a), the tuning springs 36 on the left and right sides are connected to the left and right sides of the sealed cavity 10a, respectively. The tuning springs 36 are used to adjust the natural frequency of the sliding permanent magnet mechanism to be at or close to the natural frequency of the building structure. The slide 32 can move along the guide rails (13a, 14a) through the pulleys 35 under vibration excitation. When the slide 32 moves, the permanent magnet 33 can continuously sweep across the induction coils 31 on the front and rear sides, thereby inducing the induction coils 31 to generate electricity and generate eddy current damping to reduce vibration. The slide 32 cooperates with the guide rails (13a, 14a) through the upper and lower pulleys 35 to ensure that the system moves smoothly only in the preset direction (longitudinal) under external excitation, and the motion trajectory is clear and controllable. The pulleys 35 at the upper and lower ends cooperate with the guide rails (13a, 14a) at the same time, which not only realizes low-resistance translational guidance, but also plays a lateral anti-derailment limiting role, eliminating the risk of jumping or overturning under the condition of a large earthquake.

[0049] In this embodiment, preferably, as follows: Figure 1 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the carriage 32 adopts a frame structure with adjustable width and height. The interior of the frame structure is the installation space for the permanent magnet 33, and the exterior is connected to the pulley 35 and the tuning spring 36. The permanent magnet 33 is mounted on the support plate 34 in an array combination. The support plate 34 is arranged in multiple layers on the installation space. The support plate 34 adopts a modular and replaceable structure. Traditional vibration dampers have fixed damping force, stiffness, and other parameters at the factory, limiting their versatility in engineering applications. The only way to adjust the damping force is to increase the number of dampers, which is costly and has poor adaptability. In this application, the slide 32 adopts a frame structure with adjustable width and height, combined with a modular and replaceable permanent magnet support plate 34, achieving flexible adjustment of both internal parameters and external dimensions, significantly improving the device's engineering adaptability and economy. Furthermore, by adjusting the slide 32, the width and height can be stretched or shortened according to the aspect ratio of the building's wall advertising panels, easily matching display panels 20 of different sizes. Whether the wall space is vertically elongated (large height-to-width ratio) or flat and elongated (wide and tall), the slide 32 can be perfectly embedded through telescopic adjustment without changing the existing building design. The same internal module can adapt to various specifications of advertising panels, reducing mold opening and spare parts types, and lowering costs. Low manufacturing cost; and the total eddy current damping force of the device can be adjusted over a wide range by increasing or decreasing the number of permanent magnets 33 without replacing the entire damper, adapting to the structural vibration control needs of different intensities (wind vibration, earthquake, etc.). By adjusting the counterweight of the permanent magnets 33 (changing the mass) or cooperating with the tuning spring 36, the natural frequency of the system can be adaptively tuned to match the dynamic characteristics of different buildings. Furthermore, when the width of the installation space is limited (such as a vertically elongated wall) and the horizontal sliding distance is insufficient, traditional dampers cannot provide sufficient damping force. In this application, the bearing plate 34 is arranged in multiple layers and is modular and replaceable. By increasing the total magnetic field area, the insufficient horizontal stroke is compensated for. It still generates a strong eddy current damping force within a limited movement distance. Even in a confined space with a small aspect ratio (narrow and tall), it can meet the vibration reduction performance requirements, greatly expanding the installation scenarios of the device.

[0050] In this embodiment, preferably, as follows: Figure 1 , Figure 7 and Figure 8 As shown, the carriage 32 is composed of four L-shaped support frames 32a. The four support frames 32a are distributed at the four corners and form a frame structure. The width and height of adjacent support frames 32a are connected by bolts 32b and bolt holes along the line to achieve adjustable width and height. This structure is simple and easy to adjust. After adjusting to the required specific length and width, it can be locked by bolts 32b.

[0051] In this embodiment, preferably, as follows: Figure 1 , Figure 7 and Figure 9 As shown, the tuning spring 36 has a slide connecting block 37 and a housing connecting block 38 at both ends. The slide connecting block 37 is slidably fitted on the side of the slide 32 and locked in place by the locking member 37a. The left and right sides of the sealed cavity 10a have vertical slots 15a, and the housing connecting block 38 is slidably fitted in the slots 15a and locked in place by the locking member 38a. The positions of both ends of the tuning spring 36 are adjustable, which can easily tune the natural frequency to the natural frequency of the building structure, and also allow the tuning spring 36 to form a small tilt angle, introducing nonlinear stiffness into the system to cope with extreme displacement control under rare large earthquakes.

[0052] In the dynamic analysis model of the eddy current vibration reduction system 30, the carriage 32 and its supporting plate 34, permanent magnet 33, etc. constitute the inertial mass (m) of the system, and the tuning spring arrays 36 on the left and right sides provide the restoring stiffness (k) of the system. In terms of vibration reduction and energy conversion mechanism, this system mainly relies on the eddy current effect excited by the high-speed cutting of the induction coil 31 by the permanent magnet 33 to provide the system with eddy current damping (c) that dynamically changes with relative velocity. By adjusting the number / wire diameter of the tuning springs 36 (changing k) or increasing or decreasing the counterweight of the permanent magnet 33 (changing m), the natural frequency of the internal motion system can be tuned to the natural frequency of the building structure. When the building resonates or is excited to vibrate, the internal mass block generates relative motion opposite to the vibration direction of the main structure. The increase in displacement velocity causes the eddy current effect to increase exponentially.

[0053] In this embodiment, preferably, as follows: Figures 1 to 6As shown, the housing 10 is assembled from a front panel 11, a back panel 12, a top panel 13, a bottom panel 14, and a pair of side panels 15 in a sealed manner (without any open ventilation holes). A display panel 20 is installed on the outer side of the front panel 11, and an emergency response system 40 and an induction coil 31 are installed on the inner side. The induction coil 31 is installed on the inner side of the back panel 12. Guide rails (13a, 14a) are provided on the inner sides of the top panel 13 and the bottom panel 14. Slots 15a are provided on the inner sides of the two side panels 15. The side panel 15 closest to the emergency response system 40 has wiring holes 15b to 15d. Wiring hole 15b is located near the back panel 12, wiring hole 15c, and the wiring hole... The third panel 15d is close to the front panel 11. The induction output line 31a of the induction coil 31 on the front panel 11 is directly connected to the disaster emergency system 40 in the sealed cavity 10a. The induction output line 31a of the induction coil 31 on the back panel 12 first passes through the first wire hole 15b to exit the sealed cavity 10a, and then passes through the second wire hole 15c to enter the sealed cavity 10a to avoid the slot 15a and connect to the disaster emergency system 40. The power output line 41a of the disaster emergency system 40 passes through the third wire hole 15d to exit the sealed cavity 10a and connects to the display panel 20. The holes for the induction output line 31a and the power output line 41a are sealed. Equipment used on building facades often faces complex service environments (such as typhoons, rainstorms, acid rain, sandstorms, etc.). In order to eliminate the damage of the external harsh environment to the internal mechanical transmission and electromagnetic induction components of the device, the housing 10 of this application adopts a "fully enclosed sealed structure" design to ensure the overall corrosion resistance and maintenance-free performance of the device. In addition, the housing 10 also adopts a "side plate external bypass cable routing" design, which cleverly solves the spatial conflict between the internal adjustable mechanism and the cable layout. This not only ensures the functional integrity of the housing connecting block 38 freely adjustable along the slot 15a, but also realizes the efficient and reliable transmission of induced electrical energy. Furthermore, during later maintenance, the side plate 15 can be disassembled separately for cable inspection or replacement without disassembling the entire housing 10.

[0054] In this embodiment, the panels of the housing 10 are spliced ​​together using highly elastic and aging-resistant industrial-grade sealing strips and high-strength fastening bolts to form a physically isolated sealed cavity 10a. This excellent sealing performance physically isolates rainwater, smog, fine particulate matter, and other foreign objects from entering the device, preventing accidents such as internal metal corrosion, guide wheel jamming, and coil short circuits caused by dust accumulation or water vapor condensation. This gives the system a long maintenance-free service life. Furthermore, the wires are guided through and locked by a high-grade waterproof connector, while on the other side where no wires are needed, an industrial-grade waterproof sealing plug is used for physical sealing to ensure that water vapor does not seep in.

[0055] In this embodiment, preferably, as follows: Figure 5 and Figure 6As shown, the top plate 13 and the bottom plate 14 are completely identical vertically symmetrical structures, and the two side plates 15, except for the wire hole 15b to the wire hole 315d, are completely identical horizontally symmetrical structures. During production, the mold can be opened uniformly, reducing the types of parts and lowering the manufacturing cost.

[0056] In this embodiment, preferably, as follows: Figure 1 and Figure 7 As shown, pulleys 35 are distributed at the corners of the upper and lower ends of the carriage 32, and the pulleys 32 at the upper and lower ends are aligned one by one. The pulleys 32 have a self-lubricating structure, and the guide rails (13a, 14a) adopt a low-friction groove structure, with the pulleys 35 embedded in the guide rails (13a, 14a). This arrangement results in extremely low starting friction, ensuring sensitive sliding under minor vibrations, and also provides extremely stable vertical and lateral limiting constraints, preventing the internal mechanism from rubbing against the inner wall, jumping off the rails, or overturning under strong vibrations.

[0057] In this embodiment, the surfaces of the guide rails (13a, 14a) are chrome-plated and hardened, resulting in an extremely low coefficient of sliding friction.

[0058] In this embodiment, preferably, as follows: Figure 1 , Figure 3 and Figure 4 As shown, the induction coil 31 is made of pure copper, and multiple sets of induction coils 31 are arranged closely along the vertical direction, with each set of induction coils 31 being longitudinal in shape. The large-area, high-density laying of pure copper induction coils 31 can generate a strong eddy current damping force when the permanent magnet 33 continuously sweeps across the induction coils 31 on both sides at high speed, which can significantly reduce the acceleration response and peak displacement of the building.

[0059] In this embodiment, the induction coil 31 is laid out through insulating film coating and vacuum potting process. The winding layout of the induction coil 31 is optimized by electromagnetic field finite element simulation to ensure that the internal permanent magnet 33 can cut as many magnetic field lines as possible when it sweeps, so as to generate the maximum intensity of alternating current and eddy current damping force.

[0060] Example 2 like Figure 12 As shown, taking the array installation of a wall-mounted self-powered eddy current vibration damping-advertising board combination device 100 on the exterior or interior wall of a skyscraper as an example: In normal light wind and vibration environments, it operates under normal conditions. When the wind force is less than level 6, the outermost display board 20 is powered by the building's municipal power grid and plays commercial advertisements normally, fulfilling its normal commercial media value. At this stage, the device is not completely stationary. Under the excitation of weak environmental vibrations in the building (such as daily wind load and surrounding traffic vibrations), thanks to the extremely low friction of the internal pulley 35, the sliding permanent magnet mechanism can keenly capture the micro-vibrations and generate relative sliding. The weak current generated by the induction coil 31 continuously flows into the voltage regulator-control box 42 and enters the energy storage battery 41 after rectification for long-term silent energy storage, ensuring that the energy storage battery 41 is always in the best state of full charge standby.

[0061] When a city encounters extreme natural disasters such as rare earthquakes or super typhoons: the mains power to buildings often fails or is cut off instantly. At the same time, the main body of the building swings significantly under violent external excitation. The sliding permanent magnet mechanism inside the device undergoes relative motion under the dynamic tuning of the tuning spring array 36. The permanent magnet 33 continuously sweeps across the front induction coils 31 on both sides at high speed. At this time, the device is fully activated and plays the following synergistic role: 1) structural dynamic vibration reduction; 2) emergency lighting and safety guidance during power outages. At this time, the display board 20 will be independently powered by the energy storage battery 41 and switch to the "emergency evacuation guidance terminal" or "disaster information release interface", continuously outputting high-contrast evacuation guidance and safety warnings, thereby greatly improving the building's comprehensive disaster prevention and personnel evacuation resilience under extreme disasters.

[0062] Due to its high spatial adaptability and two-dimensional flat attachment characteristics, this device is also suitable for use in small spaces in non-commercial areas such as elevator shaft perimeter walls, evacuation stairwells, and underground electromechanical equipment floors inside buildings. This effectively avoids physical encroachment on the evacuation routes of people inside the building and the electromechanical maintenance passages. In such specific scenarios, the display panel on the outside of the device can be transformed back into a building public information display screen or an electromechanical equipment operation status monitoring panel. The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A wall-mounted self-powered eddy current vibration damping-advertising board combination device, characterized in that, include: The casing is flat, wall-mounted, and has a sealed cavity inside; The display board is located on the front of the casing, is normally powered by mains electricity, and displays advertisements. An eddy current vibration reduction system is installed in a sealed cavity and can generate electric currents under vibration excitation to produce eddy current damping to reduce vibration. The disaster emergency system is located in a sealed cavity. It can recover and store the induced current of the eddy current damping system, and can power the display board when the mains power fails, allowing the display board to switch to displaying emergency evacuation instructions or emergency disaster broadcasts.

2. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 1, characterized in that: The disaster emergency response system includes an energy storage battery and a voltage regulator-control box. The voltage regulator-control box contains a rectifier module, a mains power status monitoring module, a storage module, and a microcontroller unit. The induced current of the eddy current vibration reduction system is rectified by the rectifier module and then stored by the energy storage battery. The mains power status monitoring module is used to detect the mains power status. The storage module is used to store disaster emergency information. The microcontroller unit is used to control the energy storage battery to supply power to the display board and allow the display board to retrieve and display the disaster emergency information stored in the storage module when the mains power status monitoring module detects a mains power failure.

3. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 1, characterized in that: The eddy current vibration damping system includes an induction coil and a sliding permanent magnet mechanism. The induction coil is located on the front and rear surfaces of the sealed cavity. The sliding permanent magnet mechanism includes a carriage, a permanent magnet mounted on the carriage, pulleys at the upper and lower ends of the carriage, and tuning springs on the left and right sides of the carriage. The upper and lower surfaces of the sealed cavity are provided with longitudinal guide rails. The pulleys at the upper and lower ends are respectively matched with the corresponding guide rails. The tuning springs on the left and right sides are respectively connected to the left and right sides of the sealed cavity. The tuning springs are used to adjust the natural frequency of the sliding permanent magnet mechanism to be at or close to the natural frequency of the building structure. The carriage can move along the guide rails through the pulleys under vibration excitation. When the carriage moves, the permanent magnet can continuously sweep across the induction coils on the front and rear sides, thereby inducing the induction coils to generate electric current and producing eddy current damping to reduce vibration.

4. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 3, characterized in that: The carriage adopts a frame structure with adjustable width and height. The interior of the frame structure is the installation space for permanent magnets, and the exterior is connected to pulleys and tuning springs. The permanent magnets are mounted on the support plate in an array. The support plate is arranged in multiple layers on the installation space and adopts a modular and replaceable structure.

5. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 4, characterized in that: The carriage is composed of four L-shaped support frames. The four support frames are distributed at the four corners and form a frame structure. The width and height are adjustable by bolts and bolt holes along the line between adjacent support frames.

6. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 3, characterized in that: The tuning spring has a slide connecting block and a housing connecting block at both ends. The slide connecting block is slidably fitted on the side of the slide and locked in place by a locking element. The left and right sides of the sealed cavity are provided with vertical slots. The housing connecting block is slidably fitted in the slots and locked in place by a locking element.

7. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 6, characterized in that: The casing is assembled from a front panel, a back panel, a top panel, a bottom panel, and a pair of side panels in a sealed manner. The display panel is installed on the outer side of the front panel, and the emergency response system and induction coil are installed on the inner side. The induction coil is installed on the inner side of the back panel. Guide rails are installed on the inner sides of the top and bottom panels, and slots are installed on the inner sides of the two side panels. The side panel near the emergency response system has wiring holes one to three. Wiring hole one is near the back panel, and wiring holes two and three are near the front panel. The induction output wire of the induction coil on the front panel is directly connected to the emergency response system in the sealed cavity. The induction output wire of the induction coil on the back panel first passes through wiring hole one out of the sealed cavity, and then passes through wiring hole two into the sealed cavity to avoid the slots and connect to the emergency response system. The power supply output wire of the emergency response system passes through wiring hole three out of the sealed cavity and then connects to the display panel. The holes for the induction output wire and the power supply output wire are sealed.

8. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 7, characterized in that: The top and bottom plates are identical symmetrical structures, and the two side plates are identical symmetrical structures, except for the first to third thread holes.

9. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 3, characterized in that: The pulleys are distributed at the corners of the upper and lower ends of the carriage, and the pulleys at the upper and lower ends are aligned one by one. The pulleys have a self-lubricating structure, and the guide rail adopts a low-friction groove structure, with the pulleys embedded in the guide rail.

10. The wall-mounted self-powered eddy current vibration damping-advertising board combination device as described in claim 3, characterized in that: The induction coil is made of pure copper, and multiple sets of induction coils are arranged closely along the vertical direction, with each set of induction coils being longitudinal in shape.

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