Broadband anti-seismic hybrid vibration isolation device

Abstract

The invention relates to an anti-seismic and reliable technology of a vehicle external display system, and discloses a broadband anti-seismic hybrid vibration isolation device. The device surrounds a main load path between a display module and a vehicle body outer covering part, a non-detachable collaborative chain is constructed according to a manufacturing / assembling / running sequence, and the device at least comprises a mixed vibration isolation supporting sub-chain formed by connecting an all-metal steel wire rope vibration isolator (WRI) and an elastic body support in parallel or in series and parallel, and an elastic body supporting sub-chain formed by connecting the all-metal steel wire rope vibration isolator (WRI) and the elastic body support in parallel; the pre-tightening-limiting-energy shunting sub-chain is provided with initial pre-tightening, directional idle running and geometric limiting; an interconnection and boundary governance sub-chain located in the electrical connection / flexible interconnection region; an operation detection and gating interface subchain coupled with the vehicle IMU / acceleration sensing and display control logic; under a normal road spectrum, the elastomer branch controls high-frequency small-amplitude response and stabilizes image quality, when impact / large-amplitude displacement comes, path switching is triggered through limiting, the WRI branch bears main energy and dissipates the main energy, and broadband vibration isolation of the through road spectrum and the impact spectrum is achieved.

Description

Technical Field

[0001] This invention belongs to the field of vehicle electronics and structural vibration control technology, specifically relating to a broadband anti-vibration hybrid vibration isolation device for vehicle external display modules (including splicing / curved / tile displays) and its integrated collaborative design with electrical connection, control gating, and type evidence. Background Technology

[0002] With the rise of vehicle exterior displays for information presentation, brand communication, and interactive applications, display modules are placed on vehicle body panels and exposed to road vibration, wind-induced excitation, thermal cycling, and occasional impacts (potholes, speed bumps, low-speed scrapes / collisions). Common existing vibration isolation solutions include:

[0003] 1) Single elastomer support: It has good isolation for small-amplitude vibrations at medium and high frequencies, but it is prone to overtravel, permanent deformation or "buckling" under large displacement / impact conditions, resulting in structural mismatch, pixel jitter and fretting wear of solder joints.

[0004] 2) Single metal vibration isolator (such as WRI) solution: It has good tolerance for impact energy dissipation and large displacement, but the damping and stiffness adjustment is limited in the high-frequency band of the road spectrum, which can easily lead to image jitter and blurry details.

[0005] 3) Neglecting interconnection and boundary management: The FPC, flexible interconnection and connector area of ​​the display module become weak points for vibration, and fretting wear and pad cracks are one of the main failure mechanisms.

[0006] 4) Disconnect between structure and display algorithm: The remaining response on the structure side is not linked with the gating on the display side, and cannot degrade the content or feedforward anti-jitter in time when the limit is triggered or abnormal input is detected, resulting in the functional failure of "the structure can withstand it but the picture is unusable".

[0007] Therefore, a systematic solution is needed that couples the "advantages of high-frequency vibration isolation of elastomers" with the "advantages of large displacement / impact energy dissipation of WRI", and forms an unbreakable collaborative chain in geometric limiting, energy diversion, interconnection management and display gating. Summary of the Invention

[0008] To achieve the above objectives, the present invention provides the following technical solution: a broadband anti-seismic hybrid vibration isolation device is proposed, which solves the compatibility problem of the display module under dual-domain conditions of vehicle road spectrum (high frequency small amplitude) and occasional impact / limit displacement (low frequency large amplitude) through the sequential cascading and cooperative relationship of S1–S5 multi-subchains, suppresses contact micro-movement and solder joint cracks, reduces pixel jitter, and achieves controlled degradation when necessary to ensure availability and verifiability.

[0009] Furthermore, the broadband seismic isolation hybrid device includes:

[0010] —The mounting interface that forms the main load path between the display module and the vehicle body exterior panels; and

[0011] —An indivisible collaborative chain cascaded around the main load path in a predetermined manufacturing / assembly / operation sequence, the collaborative chain including at least one or more of the following sub-chains:

[0012] S1) Hybrid vibration isolation support sub-chain: It is a mechanical network consisting of parallel or series-parallel branches of all-metal wire rope vibration isolators (WRI) and elastomer branches. The WRI branches are designed to bear loads and dissipate energy through metal bending, torsion and friction under impact and large displacement inputs. The elastomer branches are designed to dominate the stiffness and damping of the transmission path under high-frequency small-amplitude inputs of the road spectrum.

[0013] S2) Pre-tightening-limiting-energy shunt sub-chain: Through initial pre-tightening, directional idle and geometric limit settings, the elastomer branch takes effect first under normal working conditions, and when the input reaches the preset threshold, it triggers the limit and WRI branch-dominated restricted path switching, thereby realizing the sequential triggering and graded energy consumption from "high frequency / small amplitude → impact / large amplitude".

[0014] S3) Interconnection and Boundary Governance Subchain: Provides strain loops, follow-up guides and micro-motion suppression components near the electrical connection / flexible interconnect of the vibration isolation device and the display module to suppress contact micro-motion, pad cracking and pixel jitter caused by residual vibration;

[0015] S4) Operation detection and gating interface sub-chain: Hardware interface with vehicle IMU / accelerometer sensing and control logic, used to link the pixel feedforward anti-shake / content degradation or transient black screen bypass on the display side after input spectrum abnormality or trigger limit, thereby limiting the impact of structural residual response on display function to an acceptable range.

[0016] S5) Evidence package included with the product: an immutable calibration and type test data carrier that corresponds one-to-one with the device, recording at least the sequential triggering, energy diversion and functional maintenance relationship of the hybrid vibration isolation under normal road spectrum and impact spectrum, for verification and secondary consideration in delivery, maintenance or dispute scenarios.

[0017] Among them, S1–S5 form a synergistic effect through commonly defined boundary conditions, triggering sequence and energy distribution relationship: under normal working conditions, the elastic body branch controls high frequency transmission and stabilizes the display quality, while the impact / limit displacement is borne by the WRI branch and guided into the restricted energy dissipation path through the limit, thereby realizing broadband vibration isolation of the through-channel spectrum and impact spectrum and maintaining the continuity of display function or controlled degradation.

[0018] The WRI branch is an all-metal wire rope vibration isolator with a cross-wound or figure-eight braided structure. The end metal joint is connected to the installation interface through anti-rotation and anti-loosening clamping or wedging components, and is arranged in three or four points along two or three main axes to form spatial decoupling.

[0019] The elastomeric branch is a shear-compression composite support, whose geometry and materials are configured to provide dominant damping and equivalent stiffness in the small displacement / high frequency range, while in the large displacement range it transitions to a confined path via the limit to prevent the elastomeric body from bearing the maximum impact strain.

[0020] The preload-limit-energy shunt subchain includes: a visual preload indicator mechanism, a labyrinthine limiter with directional travel, and a low-friction / wear-resistant pad; the mechanisms together define the triggering sequence and energy distribution of the device, first the elastomer, then the WRI.

[0021] The device deviates from industry norms by configuring the all-metal WRI only as a shock / large displacement shunt rather than as the sole support for low-frequency normal vibration isolation; and avoids using a single elastomer to bear both shock and high-frequency inputs across the entire frequency band, thereby reducing functional drift caused by material nonlinearity and thermal-vibration coupling.

[0022] The collaborative chain has countermeasures for the following failure mechanisms:

[0023] a) “Screen jitter / micro-motion wear” caused by high-frequency residual vibration of pixels / interconnects – dominated by elastomer branches in the normal range and suppressed by shear damping;

[0024] b) The support “bottom contact / tear / permanent deformation” caused by impact loading is borne by the WRI branch after the limit trigger and counteracted by the energy dissipation of metal bending and torsion and interface friction;

[0025] c) Secondary load transfer caused by path switching - the force transmission path is defined by the energy diversion component and the gating interface is linked to degrade the subsystem function when necessary.

[0026] The evidence package chain includes at least one of the following: factory calibration spectrum, vehicle self-test spectrum, and type test spectrum recorded in the form of mechanical nameplate / laser QR code / read-only storage medium, as well as an "input-response-functional state" mapping corresponding to the S1-S4 trigger sequence.

[0027] The interconnection and boundary management subchain includes: FPC / wire harness follow-up guide, constant force crimping / anti-micro-motion contact, strain circuit and suspended nodal line misalignment arrangement, in order to preferentially transfer residual strain to non-critical regions rather than contacts / pads / critical traces.

[0028] The elastomeric branch adopts at least one elastomeric material or layered composite material. The material achieves the target response of "soft shear / stable compression" through a combination of thickness, cavity / micropore or gradient hardness, and can form a locally constrained damping region with the thin metal constraint layer.

[0029] The contour and material of the limiting member are configured to distribute impact energy to the high-strength areas of the WRI branch and metal joint in the event of confined contact, and to reduce local stress concentration through low-friction pads.

[0030] A replaceable tuning shim / block is provided between the WRI branch and the elastomer branch for fine-tuning the initial geometry and equivalent stiffness / damping of the cooperative chain after installation, in order to avoid sensitive frequency bands related to display refresh.

[0031] The device is equipped with environmental protection components, including a flexible dust cover, a drainage / breathing channel, and a labyrinth seal, to prevent sand / water vapor from affecting the vibration isolation response without significantly changing the equivalent stiffness.

[0032] The device is arranged around the display module with three or four points as module units, and forms a decoupled step transfer function on the vehicle's longitudinal / lateral / vertical axes.

[0033] The gating interface is configured to output a hardware-level degradation signal to the display controller when the limit switch is triggered or the IMU detects an abnormal spectrum, in order to trigger pixel feedforward anti-jitter, brightness upper limit convergence, or black screen bypass.

[0034] The installation interface includes a resettable eccentric sleeve or guide groove to restore the factory-calibrated preload and free travel after maintenance replacement of the WRI or elastomer components.

[0035] The WRI branch uses a combination of the same or different materials of corrosion-resistant metal wire rope and metal joint, and suppresses dry friction noise and wear powder escape through surface treatment / wrapping.

[0036] The evidence package chain is linked to the vehicle's electronic identification / cloud archive to support verifiability during delivery acceptance, road supervision spot checks, or infringement evidence collection.

[0037] The collaborative chain completes the pre-tightening setting and idle stroke verification during the manufacturing and assembly stages, and maintains the sequential triggering relationship during the operation stage, so that the structure and function gating form a structure-control collaboration rather than a simple algorithm shield.

[0038] Synergistic approaches to broadband vibration isolation and function preservation include:

[0039] Step M1: Set the initial preload of the elastomer branch, the directional arrangement of the WRI branch, and the limit travel during the manufacturing / assembly stage;

[0040] Step M2: Under normal road spectrum, the elastic branch is preferentially used to bear the load and the high frequency transmission is suppressed by shear damping; Step M3: When the input reaches the threshold trigger limit, the transmission path is switched to the restricted energy dissipation path dominated by the WRI branch to resist impact / large displacement.

[0041] Step M4: In step M2 or M3, linkage interconnection and boundary management are used to suppress micro-motion and strain concentration, and feedforward anti-jitter / degradation on the display side is triggered as needed via the gating interface;

[0042] Step M5: Record the spectrum-response-function mapping of steps M1-M4 using the factory evidence package for delivery and post-delivery verification.

[0043] Step M1 also includes fine-tuning the equivalent stiffness / damping of the cooperative chain using a replaceable tuner to avoid sensitive frequency bands related to display refresh, and resetting it to the calibration state after maintenance.

[0044] Furthermore, the external display system includes:

[0045] —External display module; and

[0046] —A hybrid vibration isolation seat disposed between the display module and the vehicle body exterior panels.

[0047] The hybrid vibration isolation base is composed of the following non-detachable cooperative chains arranged in a predetermined start-stop sequence:

[0048] A) All-metal wound cable isolator subchain (WRI), which becomes the main load path when the relative displacement or acceleration reaches a preset threshold, in order to withstand impact input and low-frequency large displacement and provide travel margin.

[0049] B) The elastomer subchain provides high-frequency isolation and micro-motion suppression as the main load path in the high-frequency domain of the normal road spectrum, and shares energy with the WRI frequency / phase division after threshold triggering;

[0050] C) Gating-limiting mechanism, which defines the triggering sequence from "high frequency priority → impact priority" through idle stroke, inclined / wedge or controllable stop, and controls the switching and energy diversion of the energy dissipation phase of the elastomer subchain and the bearing phase of the WRI during the triggering process;

[0051] D) Interface treatment layer, which is set at the connection interface between the hybrid vibration isolation seat and the display module / body outer covering, is used to suppress contact micro-motion and contact resistance drift in the high frequency domain and provide thermal bypass and electrical continuity bypass to avoid optical / electrical connection failure caused by thermal-vibration coupling.

[0052] Among them, A) to D) achieve broadband vibration isolation through commonly defined boundary conditions, triggering sequence and energy distribution relationship: in the normal vibration domain, the elastic body sub-chain dominates and high frequency attenuation occurs; in the impact domain, WRI dominates and the protective structure and pixel interconnection occur; in the transition domain, the gating-limiting mechanism distributes energy between the two sub-chains in frequency and phase, thereby maintaining the functional stability or controlled failure of the external display system under all operating conditions.

[0053] The main compliant axis of the WRI cable is oriented along the estimated main impact vector, and its end is connected to the installation reference via a flexible bridging component, so as to perform high-frequency decoupling of the WRI in the normal high-frequency domain and restore its low-frequency load continuity after threshold triggering.

[0054] The elastomer sub-chain is a constrained shear-type laminate or dual-medium composite elastomer, which provides damping energy dissipation in the shear-dominated high-frequency domain, and after threshold triggering, it switches to parallel sharing or series-parallel hybrid connection with WRI.

[0055] The gate-limiting mechanism includes a three-stage triggering system based on displacement / velocity / acceleration: an idle section, a progressive section, and a hard stop section. A replaceable friction pad or a metal plastic energy-absorbing sheet is provided in the progressive section to form a secondary energy dissipation.

[0056] The interface governance layer includes:

[0057] (i) Anti-fretting pads and textured contact surfaces to improve wear resistance and contact stability under micro-amplitude reciprocating motion;

[0058] (ii) The thermally conductive bypass component guides the heat flow of the display module to the heat sink without creating a rigid vibration short circuit;

[0059] (iii) Equipotential bonding strips and shielded bridges are used to maintain electrical continuity and suppress noise and vibration amplification caused by electromagnetic coupling.

[0060] The installation matrix of the hybrid vibration isolation seat is a three- or four-point staggered arrangement to break the coupling symmetry and expand the modal gap, wherein at least one point is an adjustable height / pre-tightening reference point for assembly and on-site correction.

[0061] An impedance matching pad or compliant connecting ring is provided between the WRI and the elastomer subchain to improve high-frequency insertion loss under normal conditions and to prevent the continuous load path of the WRI from being interrupted after threshold triggering.

[0062] The hybrid vibration isolation seat integrates anti-rotation features (key / spline / anti-rotation pin) and a secondary limiting cage to limit sudden attitude changes under abnormal impacts and prevent wire harness / FPC from being pulled.

[0063] The elastomer subchain is a partitioned tuning structure, with different partitions providing different shear-compression coupling and damping distribution along the primary / secondary load paths to correspond to the frequency band grouping of the vehicle road spectrum.

[0064] The trigger threshold of the gate-limiting mechanism is set by a replaceable limit pad or an adjustable eccentric sleeve, and the remaining idle distance and the used energy absorption margin can be read through a quantified visual indicator during maintenance.

[0065] The hybrid vibration isolation seat is surrounded by a labyrinth dust cover and a breathable drainage channel to suppress cavity pressure difference and particle intrusion without introducing rigid short circuits under impact-temperature difference conditions.

[0066] The WRI employs replaceable cable bundles and wedge clamping ends to enable rapid end reset / replacement without affecting the assembly reference of the elastomer subchain after the end of its service life or in case of abnormality.

[0067] The interface treatment layer also includes a constant force spring or wave spring to maintain a constant clamping force on the connector under thermal cycling and fatigue accumulation, and to suppress contact resistance rise and fretting wear.

[0068] The hybrid vibration isolation seat has a preset safety bias in the failure direction: when the elastomer subchain is damaged / creep exceeds the tolerance, the gating-limiting mechanism locks the WRI path as the normal main path to maintain structural safety and minimum functionality.

[0069] The WRI applies preload / pre-compression during assembly to improve the initial yield margin, and the preload value is visually marked by a disposable indentation washer / color-changing strain gauge.

[0070] The elastomer sub-chain is a weather-resistant-damping composite: an ozone-resistant / UV-resistant coating or a micro-textured hard coating is applied to the surface to maintain long-term high-frequency damping.

[0071] The interface treatment layer works in conjunction with the wire harness / FPC to set up a strain circuit and a misalignment between the suspension nodal wire, which is used to transfer the relative displacement to a tolerable area rather than the contact / pad.

[0072] The gate-limiting mechanism can be driven by an electromechanical threshold component, which identifies impact events based on the accelerometer / IMU and adjusts the trigger threshold or stop position, while in normal operation it does not require active control.

[0073] A constrained damping (CLD) thin layer is sandwiched between the hybrid vibration isolation seat and the display module back plate, which provides a compatible path for in-plane energy dissipation and heat diffusion without forming a rigid short circuit.

[0074] The hybrid vibration isolation seat uses different material modulus gradients and geometric variations to reduce stress concentration, so that energy is distributed between the two subchains according to frequency band and phase rather than simply superimposed.

[0075] It also includes a hybrid vibration isolation mount, which is adapted to be installed between the display module and the vehicle body exterior panels, including:

[0076] —All-metal wound cable isolator subchain (WRI);

[0077] —Elastomer subchain;

[0078] —A gating and limit mechanism that defines the start / stop sequence and phase allocation of the two sub-chains;

[0079] —Interface governance layer on the interface surface;

[0080] Among them, the above-mentioned components together define the working mechanism of normal high frequency being dominated by the elastomer, low impact frequency being dominated by WRI, and transition domain being gated and limited, so as to achieve broadband vibration isolation and connection reliability maintenance.

[0081] The accompanying factory-installed evidence package includes:

[0082] (i) Assembly baseline record: WRI preload, free travel, limit position, fastening torque, installation posture and centering error;

[0083] (ii) Functional baseline testing: Transit rate-frequency curves and threshold trigger event logs under nominal road and impact spectra;

[0084] (iii) Traceability identification: tamper-proof codes / electronic tags that correspond one-to-one with the assembly baseline and functional baseline; (iv) In-use self-certification: event counts and remaining lifetime estimates recorded by sensors during operation, used to verify on-site whether the collaborative chain works in the designed sequence.

[0085] The transmission rate-frequency curve is acquired in two states: threshold not triggered and threshold triggered. The insertion loss difference and peak impulse ratio of the characteristic frequency band are stored as verification indicators.

[0086] The tamper-proof code corresponds to the readings of the electronic tag and the disposable indentation washer / color-changing strain gauge, so as to realize the visual comparison of the assembly status.

[0087] The assembly and calibration methods for hybrid vibration isolation seats include:

[0088] S1) Install the hybrid vibration isolation seat with a staggered angle reference and set at least one adjustable preload base point;

[0089] S2) Measure the high-frequency transfer rate in the non-triggered state and adjust the partition shear-compression ratio of the elastomer subchain and the clamping force of the interface treatment layer to meet the high-frequency isolation and anti-fretting objectives;

[0090] S3) Set the trigger idle stroke by using a limit shim or eccentric sleeve, and verify the impact load and stroke margin of WRI in the triggered state;

[0091] S4) Record the assembly and functional baselines formed by S1 to S3 and write them into the evidence package for in-use verification.

[0092] Furthermore, the hybrid vibration isolation support subchain includes at least one all-metal wire rope isolator (WRI) branch and one elastomer branch, both constrained by the same installation interface and not functionally split into independent load-bearing paths; and at least one parallel coupling segment and one segmented series-parallel coupling segment are provided in the input main load path, so that the two branches are functionally divided in the frequency-displacement amplitude domain: when the input is in the high-frequency small amplitude range of the road spectrum (≥f_H, displacement ≤A_H), the elastomer branch dominates the stiffness and damping; when the input is in the impact / large displacement range (≤f_L, displacement ≥A_L), the WRI branch dominates the metal bending torsion / friction energy dissipation, and the coverage range of the two branches has a non-zero overlap zone to ensure seamless switching.

[0093] The preload-limit-energy diversion subchain includes an initial preload applied to the elastomer branch (causing the compressibility deformation of the elastomer branch under static load to account for 5%–25% of its rated deformation), a geometric limit mechanism with directional clearance (setting a first limit gap Δ1 in the main force transmission direction and a second limit gap Δ2 in the non-main direction, and Δ1≠Δ2 to form a directional clearance), and a threshold-triggered path switching logic, wherein when the input equivalent acceleration or displacement peak exceeds a preset threshold (e.g., a≥a_th or x≥x_th), the limit mechanism closes and bypasses the load to the restricted energy dissipation path dominated by the WRI branch, thereby realizing sequential triggering and graded energy dissipation of "high frequency / small amplitude → impact / large amplitude".

[0094] The interconnect and boundary management subchain includes strain relief loops (with an effective loop length L_s left for the FPC or wires to provide ≥2% in-plane margin) and follow-up guide components (to keep the interconnects following each other without forming corner stress concentrations when the mounting interface is relatively displaced) and micro-motion suppression components (including anti-loosening retention and micro-displacement damping) to limit the micro-motion displacement of the contacts below the threshold and suppress pad cracks and pixel jitter caused by residual vibration within an acceptable range.

[0095] The operation detection and gating interface subchain includes a hardware interface with the vehicle IMU / accelerometer (including but not limited to one or more of CAN / LIN / FlexRay or Ethernet) and linkage gating with the display control logic. When an input spectrum abnormality or limit trigger event is detected, at least one or more of the following are triggered within T_g≤100ms according to a predetermined priority: pixel feedforward anti-jitter → content degradation (reducing refresh rate / brightness / motion vector energy) → transient black screen bypass, thereby limiting the impact of the residual structural response on the display function to below a predetermined threshold.

[0096] The factory-installed evidence package chain is a data carrier that corresponds one-to-one with the device and is tamper-proof. It includes a unique identifier and integrity verification mechanism (such as at least one of read-only storage / tamper-proof storage medium, digital signature, or secure hash chain), and solidifies and records type test and calibration data of sequential triggering, energy diversion, and function maintenance under normal road spectrum and impact spectrum. It includes at least the trigger threshold, limit closure timing, energy consumption ratio of two branches, and display side gating response timing, which are used to support verifiability and secondary consideration in delivery, maintenance, or dispute scenarios.

[0097] Furthermore, the hybrid vibration isolation support subchain must simultaneously include all-metal wire rope isolators (WRI) branches and elastomer branches, forming a parallel or series-parallel mechanical network. The WRI branches are responsible for energy dissipation due to metal bending, torsion, and friction under impact and large displacement, while the elastomer branches dominate stiffness and damping under high-frequency, small-amplitude input. Furthermore, the mechanical network is indivisible and can alternatively use metal springs or air springs as equivalent elements of the WRI branches, but the frequency response range must be separated, i.e., high frequencies are controlled by the elastomer, and low-frequency impacts are dominated by the WRI or its alternatives.

[0098] The preload-limit-energy diversion subchain includes an initial preload, directional space, and a geometric limit structure. The elastic body branch acts as a primary vibration isolation mechanism under the preload. When the input exceeds a predetermined threshold, it triggers the limit and switches to the limited path dominated by the WRI branch, achieving sequential triggering and graded energy dissipation. The preload value ranges from 5 to 50 N. The limit structure includes, but is not limited to, a stop block or a channel. The threshold switching cannot be replaced by continuous stiffness changes or thresholdless damping.

[0099] The interconnection and boundary management subchain incorporates strain circuits, follow-up guides, and micro-motion suppression components at the electrical or flexible interconnection points between the vibration isolation device and the display module. The strain circuits employ buffer coils or loop designs, and the follow-up guides include stabilizing mechanisms to suppress contact micro-motion, pad cracking, and pixel jitter caused by residual vibration. These components must comply with the ISO 16750 vibration reliability standard, and typical structures include reinforced pads or buffer support feet; they must not be circumvented by using only ordinary connectors.

[0100] The operation detection and gating interface subchain includes a hardware interface and control logic with the vehicle IMU / accelerometer. When the input spectrum is abnormal or the limit is triggered, the pixel feedforward anti-jitter, content degradation, or transient black screen bypass on the display side must be activated in conjunction to limit the impact of the residual structural response on the display function to an acceptable range. The interface adopts a CAN bus or similar protocol, and the triggering method includes threshold signal transmission. It must not rely solely on the display's internal algorithm or ignore external vibration signals.

[0101] The factory-installed evidence package chain is an immutable data carrier that corresponds one-to-one with the device. It records at least the sequential triggering, energy diversion, and functional maintenance relationship curves of the hybrid vibration isolation under normal road spectrum and impact spectrum. The carrier uses digital signature or blockchain authentication technology to ensure immutability, and the recorded content includes calibration data and type test comparisons. It must not be separated to external databases or modifiable media and is limited to regular quality reports.

[0102] In layman's terms, we want to install a video display screen on the car's exterior. The problem is that cars experience bumps and vibrations while driving, and may encounter potholes, speed bumps, sudden braking, and even minor scrapes and impacts. Traditionally, the screen is simply fixed on, which either damages the screen pixels and solder joints due to vibrations from the road, or it is pushed to the ground, torn, or parts fall off upon impact. This "wideband vibration-damping hybrid isolation device" places a set of vibration-damping supports between the display screen and the car body that "divide tasks, relay forces, and switch paths":

[0103] Minor tremors and minor road vibrations are absorbed and filtered by the elastic support (like a "soft insole"); major tremors, impacts, and extreme displacements are handled by the all-metal wire rope vibration isolator (like a "strong seat belt + torsion spring"); in between, "small mechanisms" such as pretensioning, limiting, and energy diversion are used to ensure that each takes its turn and can switch smoothly; at the same time, interconnection and boundary management are carried out around the screen's interface and boundary to prevent minor vibrations from wearing down the contacts and cracking the pads; then, the vehicle's sensors (IMU) and control logic are connected, and gating is implemented in case of abnormalities: pixel feedforward anti-shake, temporary degradation, or brief black screen, prioritizing survival over image quality;

[0104] Finally, we compiled the complete set of test records—"how to install, how to trigger, how to consume energy, and how to maintain functionality"—into a "factory-installed evidence package" to prevent future disputes or unclear explanations during delivery or after-sales service.

[0105] In short: handle minor incidents (high-frequency small tremors) with soft methods, and major incidents (major impacts) with hard methods, relying on coordination between agencies, with software connecting hardware, to stabilize the situation, control safety, and preserve evidence.

[0106] Why use "hybrid vibration isolation"?

[0107] The exterior screen of the car suffers even more than the interior screen: it is exposed to wind and sun, alternating between hot and cold temperatures, rain and salt spray, and is bumpy all the way.

[0108] Elastomers alone are not enough: Elastomers are good at filtering out "small shocks", but once they encounter a large impact, they are easily "bursted" or permanently deformed. Over time, the material will also age and its performance will drift.

[0109] Metal wire rope alone is not enough: WRI has strong impact resistance, but using it as the sole support for "all-weather low-frequency vibration isolation" may not necessarily result in good low-frequency comfort, fretting suppression, and contact stability.

[0110] The real road conditions are a "wide spectrum": they include high-frequency small vibrations (like a phone shaking slightly), low-frequency large displacements (like going over speed bumps or potholes), and occasionally a sudden impact...

[0111] The most practical engineering solution: a combination of "flexible and rigid" branch circuits, plus pre-tensioning, limiting and energy diversion mechanisms, plus interconnection management and gating strategies, can ensure stability in all operating conditions.

[0112] What "sub-chains" make up the device? (S1-S5 Explained in Simple Terms)

[0113] S1) Hybrid vibration isolation support sub-chain (core vibration reduction "two-person show")

[0114] Elastomer branch: like a "soft insole", mainly to deal with high-frequency small-amplitude vibrations, so that the screen does not shake and the contact points do not wear;

[0115] WRI (Metal Wire Rope Vibration Isolator) branch: like "metal spring + rope damping", it can deal with impact and large displacement, and is not afraid of "hitting the bottom", and can also dissipate energy through metal bending, twisting and friction;

[0116] The two can be connected in parallel or in series-parallel to form a "mechanical network". Normally, the flexible one goes first, and in extreme situations, the rigid one takes over.

[0117] S2) Pre-tightening – Limiting – Energy Diversion Subchain (Small mechanism, fixed sequence, controlled energy)

[0118] Pre-tightening: Giving the elastomer an "initial clamping" so that it can work stably and not wobble as soon as it is installed on the machine;

[0119] Limit (with directional idle): Design a "neutral" and a "stop" that are not triggered during small vibrations; when the displacement or impact exceeds the threshold, the limit is triggered, allowing WRI to be used;

[0120] Energy diversion: Through ramps, wedges, maze-like structures, etc., energy is distributed along the designed path to avoid instantly destroying a certain point; just like using insoles to filter out daily vibrations, and then letting knee pads / protective gear take over when it comes to parkour jumping steps.

[0121] S3) Interconnection and Boundary Governance Subchain (Protecting the "Interface" as a Vital Point)

[0122] The connection points between the display screen and the electrical system, flexible cables, and solder pads are "vulnerable points." Here, we add strain circuits (to allow stress to have room to maneuver), follow-up guidance (to guide the cables to move with the screen and not be pulled), and micro-motion suppression (to prevent vibration and wear at the contact points). The purpose is to prevent tiny residual vibrations from accumulating into fatal damage at these "weak points."

[0123] S4) Operation detection and gating interface subchain (hardware + software "braking and downshifting")

[0124] The vehicle's IMU / accelerometer sensors are integrated. Once an abnormal spectrum or limit trigger is detected, the display side is activated in conjunction with: pixel-forward anti-shake (the image algorithm proactively counteracts shaking); content degradation (reducing detail or frame rate to improve robustness); and brief black-screen bypass (in extreme cases, the screen is temporarily turned off to protect hardware and viewing safety). It's similar to a camera's image stabilization combined with reduced image quality to ensure shooting quality, even allowing you to hold off on shooting during strong shaking until the image stabilizes before resuming shooting.

[0125] S5) Evidence included with the product from the factory ("black box" and "medical examination report")

[0126] Unalterable records: factory calibration data, vehicle self-inspection data, type test data (which "check-up items" you've undergone); corresponding to the "input-response-functional status" mapping under the S1-S4 trigger sequence (what was encountered, how it was performed, and the screen status). Purpose: Verifiable upon delivery, traceable during maintenance, and verifiable in case of disputes. This is not a "marketing slogan," but an engineering commitment backed by evidence.

[0127] How does this collaborative system work? (Three typical scenarios)

[0128] Scenario 1: Daily commute, urban roads (mainly high-frequency small vibrations)

[0129] Low-speed driving over manhole covers, the texture of asphalt roads, and minor vibrations from the engine / road surface... Elastomer branch dominates: like a sponge, it filters out "minor vibrations," ensuring stable operation and preventing contact wear; WRI remains largely unchanged: in a "standby" state, it retains travel and capacity, waiting for extreme situations to take off.

[0130] Scenario 2: High-speed driving over speed bumps and deep potholes (low-frequency large displacement + impact)

[0131] The vehicle body suddenly moves up and down significantly, possibly "hitting the bottom"; limit trigger: the system senses that the displacement / acceleration has exceeded the threshold and enters the "restricted path"; WRI takeover: the steel cable bends and twists + friction, consuming a lot of energy, to avoid breaking the elastic body; gate control interface linkage (if needed): the screen is fed forward to stabilize the image or temporarily degraded, even if the quality is slightly reduced, to keep "faults and damages" out.

[0132] Scenario 3: Accidental impact / minor scrape (extreme transient)

[0133] Short-duration high-impact input; WRI withstands the impact, the elastomer retreats to a secondary position to avoid the material reaching its displacement limit; the energy diversion component ensures that the force follows the predetermined path, reducing "secondary damage" (such as the rebound damaging other parts); after the end, the system automatically "resets" and returns to the normal elastomer-dominated mode.

[0134] The key "value points" in the claims

[0135] 1. S1 to S5 are "non-detachable collaborative chains".

[0136] These are not randomly assembled parts, but a whole that has an order, boundaries, and a logic of energy distribution. If any one of them is forcibly removed, the overall effect will fall apart.

[0137] 2. WRI is only used for impact / large displacement, and is not the sole support for low-frequency normal operation (claim 3).

[0138] Avoid "using the wrong medicine": WRI is very shock resistant, but if you ask it to play the role of a "soft filter" every day, it will cause new problems such as comfort and contact stability.

[0139] 3. Don't let a single elastomer handle all inputs across the entire frequency band.

[0140] An all-in-one solution is impractical: elastic bodies are easily damaged and their performance fluctuates when subjected to impacts; it is more durable to focus on "high-frequency small vibrations" and leave "extreme impacts" to the steel wire rope.

[0141] 4. Develop countermeasures for each of the three most common failure mechanisms.

[0142] Screen shaking / micro-motion wear → high-frequency band is suppressed by elastomer shear damping; bottom touch / tear / permanent deformation → after trigger limit is borne by WRI, and energy is dissipated by metal bending and torsion + friction; secondary force transmission caused by path switching → energy diversion component + gating degradation when necessary.

[0143] 5. The evidence package is a project delivery that "comes with its own chain of evidence".

[0144] It's not just about saying "we are stable," but about providing objective records of spectrum-response-function mapping.

[0145] 6. Specific layout of WRI

[0146] Cross-winding, figure-eight braiding, and end-anti-rotation / anti-loosening clamping / wedge securing, according to two /

[0147] A three-axis, three-point, or four-point arrangement creates spatial decoupling. In layman's terms: stable, sturdy, and won't get tangled up.

[0148] 7. Working zone of the elastomer

[0149] Small displacement / high frequency band: Provide main damping and equivalent stiffness; Large displacement section: "Leave the big matters to WRI" through limit stops to prevent the elastomer from being pulled to the limit.

[0150] 8. Specific composition of preloading - limiting - energy shunting

[0151] Visual preloading indicator (easy to understand whether the assembly is good or not), labyrinth limit for directional dead zone, low - friction wear - resistant liner (smooth switching, longer lifespan).

[0152] 9. Further divide S1 into four small synergies of A - D internally

[0153] A) WRI sub - chain: Enter the stage when reaching the threshold, withstand large - displacement impacts; B) Elastomer sub - chain: Filter high - frequency vibrations and suppress micro - movements under normal conditions; C) Gate - limiting mechanism: Define the switching sequence from "high - frequency priority → impact priority"; D) Interface governance layer: Suppress contact micro - movements and resistance drift, and incidentally provide thermal and electrical bypasses. The four work together according to boundary conditions + trigger sequence + energy distribution to ensure "stable across the full spectrum, stable in function".

[0154] Manufacturing and assembly: How to implement this "mechanism"?

[0155] 1. Determine the installation interface: The connection point positions, hole positions, tolerances, and surface treatments among the screen - support - vehicle body exterior parts; 2. Preloading setting: Set "preloading indicator" on the elastomer support, and the assembly torque or compression amount reaching the marked line is considered qualified; 3. Installation of limit parts: Install the labyrinth - type or wedge - type parts according to "directional dead zone", and don't install them reversely; 4. Installation of WRI: Select cross - winding or "8" - shaped braided ropes; Use anti - rotation and anti - loosening clamping / wedging parts at the ends; Arrange according to two / three - axis three - point or four - point layout, leaving enough stroke; 5. Interconnection and boundary governance: The flexible cable winds around the "strain loop" to avoid strong pulling at right - angled bends; The follow - up guiding parts are close to the movement plane; The micro - movement suppression gaskets are placed at the contact hot spots; 6. Gate - controlled interface joint debugging: Connect with the vehicle IMU / acceleration and display controller, and write the trigger threshold and strategies (conditions and timings for anti - jitter / de - grading / black screen); 7. Factory inspection and "evidence package" burning: Conduct several standard spectra: normal road spectrum, impact spectrum, vehicle - loading self - inspection spectrum; Record "input - response - functional status", and bind it to this device in an unalterable way such as laser QR code / read - only storage medium / nameplate, etc.; 8. Vehicle - loading re - inspection: Go through the self - inspection spectrum again to ensure that it still meets the preset curve under the vehicle - loading environment.

[0156] Calibration and threshold: How to select the "trigger threshold" conveniently?

[0157] High-frequency comfort range: Allow the elastomer to dominate for 90% of your daily use, ensuring the most stable image quality and safest contact points; Limiting idle travel: Reserve triggering only for events like "going over speed bumps / potholes," neither too early (otherwise frequent switching shortens lifespan) nor too late (otherwise the elastomer gets hit first); WRI travel and stiffness: It's better to have more margin than to "push it all the way"; Gating strategy: Anti-shake → Degradation → Black screen, like "three insurances," triggered step by step according to the scenario; Rule of thumb: First, roughly determine based on the "vehicle-level target spectrum," then fine-tune based on "bench tests + actual road playback," and finally lock it in with the "evidence package curve."

[0158] Common Failure Modes VS Our Targeted Solutions

[0159] 1. Screen shaking / micro-motion wear → elastomer shear damping + interface micro-motion suppression;

[0160] 2. Bottom contact / tear / permanent deformation → After the limit is triggered, the energy is borne by the WRI + frictional energy dissipation;

[0161] 3. Path switching causes secondary damage → Energy diversion components limit the path + gating downgrade when necessary;

[0162] 4. Thermal-vibration coupling leads to performance drift → the elastomer does not withstand impact, and the WRI does not act as the sole support in normal low-frequency conditions; the division of labor separates the risks.

[0163] 5. Improper assembly leads to premature aging → Pre-tightening visual indication, end anti-rotation and anti-loosening, and traceable evidence package.

[0164] Maintenance and Repair: What do field engineers look for?

[0165] Check the pre-tensioning indicator: Is it in place? Is it loose? Check the wear marks on the limit components: Is it triggered abnormally frequently (indicating that the threshold is too low or the usage environment is too rough)? Check the WRI terminal: Is the clamping / wedge securing reliable? Are there any signs of rotation? Check the interconnection and guidance: Is the cable pulled, bent, or scratched? Read the evidence package: Backtrack the "input-response-functional status" records to determine whether it is an isolated case or a systemic problem. Check the software gating log: Is there frequent degradation / black screen? Assess whether the threshold needs to be adjusted based on the actual road conditions.

[0166] The scene after clearing the level is shown below:

[0167] Normally: Soft materials (elastics) → stable screen and no wear on contacts;

[0168] When faced with a problem: withstand it head-on (WRI) → absorb the major impact;

[0169] The switching is seamless: the pre-tensioning, limiting, and energy diversion are all clearly arranged;

[0170] Even in dangerous situations, don't panic: gate control allows the screen to "stabilize or temporarily avoid the brunt of the attack";

[0171] Speak with confidence: Evidence package proves "We really did it, we really withstood it, and it really works."

[0172] Tips for Process and Supply Chain

[0173] Elastomer materials: anti-aging, temperature-resistant, weather-resistant, and with stable shear damping; WRI selection: steel wire material, lay length, winding method (cross / figure-eight), and anti-corrosion coating; metal ends: clamping / wedge standard parts to ensure anti-rotation and anti-loosening; limiting parts and pads: low friction and wear-resistant, with labyrinth / wedge precision; traceability: nameplate / QR code / read-only storage medium, one item, one code; bench and road playback: establish a standard spectral library to form a closed loop of "design change - retest - update evidence package".

[0174] Collaboration with the entire vehicle: Don't forget your "neighbors"

[0175] Body exterior stiffness / connection: Assembly stiffness and tolerances will change the transmission path and must be evaluated together; Thermal management: The interface governance layer can provide thermal bypass to avoid local overheating affecting image quality; Electrical continuity and EMC: The interface governance layer can also provide electrical continuity bypass to reduce resistance drift and electromagnetic interference; Software strategy consistency: IMU threshold and display-side anti-shake / degradation strategy are unified in the whole vehicle cascade tuning.

[0176] Why is it necessary to have an "evidence package" in the FAQ?

[0177] A: The reliability of a complex system cannot be explained simply by saying "we are very stable". Evidence packages objectively record the relationship between "input-response-functional status", which can be verified upon delivery, checked after sales, and used in disputes. They are the "foundation" of engineering and compliance.

[0178] Is this thing very expensive?

[0179] A: It's more expensive than "a single cushion," but compared to "repeated screen failures, repairs, claims, and brand damage," it's "cost-effective." Hybrid vibration isolation optimizes costs throughout the entire lifecycle.

[0180] Are there any side effects?

[0181] A: Every design has its limits. We make switching controllable through pre-tensioning and limiting, guide the load along the correct path through energy diversion, contain extreme situations through gating, and ensure traceability through evidence packages. Side effects don't disappear, but they are tamed.

[0182] What are the advantages compared to ordinary shock-absorbing brackets?

[0183] A: Ordinary stents are either completely "soft" or completely "rigid"; ours is a combination of soft and hard, with controllable switching, software and hardware linkage, and verifiable features.

[0184] Imagine the display screen as your ankle: the elastomer is like a cushioned insole, making walking less tiring; the WRI (Wearing Reinforcement) is like a protective gear plus a spring, absorbing impact when jumping stairs; the limiting and energy diversion are like the "ankle protection structure" in shoes, triggering only when the angle exceeds the limit, and then "directing the force to the right place"; the gating is like the conditioned reflex of your brain: if it's too dangerous, stop or slow down; the evidence package is like your sports watch: recording "how you walk, how you jump, and what the force is" throughout the entire process, making it verifiable.

[0185] Delivery list

[0186] 1. Hybrid vibration isolation device body (elastic support + WRI + limiting component + interface treatment layer); 2. Pre-tightening indicator and installation fixture; 3. Interconnection guide and micro-motion suppression component; 4. Gating interface wiring harness and software strategy (IMU docking, anti-shake / degradation / black screen threshold table); 5. Factory evidence package (nameplate / QR code / read-only medium, including spectrum-response-function mapping); 6. Vehicle self-inspection process and record sheet.

[0187] Adaptation recommendations for different car models / screen sizes

[0188] Small screen: The elastomer can be slightly stiffer, and the WRI travel is moderate; Large screen / sponge screen: Appropriately increase the WRI layout (three points → four points), segment the elastomer layout, and pay more attention to the "strain loop" in interconnection management; Sporty / off-road chassis: The limit travel can be enlarged, and the gate threshold is more sensitive; Flagship models that emphasize image quality: Enhance the feedforward anti-shake algorithm, and the content degradation is smoother.

[0189] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0190] 1. Broadband vibration isolation: Through the hybrid support of S1 and the limiting and energy diversion of S2, the hierarchical optimization of "high frequency / small amplitude" and "impact / large amplitude" is achieved, and the equivalent bandwidth covers the main road spectrum and the occasional impact domain.

[0191] 2. Impact resistance and rapid reset: WRI bears the main energy in the confined path and dissipates it through metal bending / friction to ensure no overload. Combined with geometric limit to avoid hard collisions, it returns to center quickly after impact.

[0192] 3. Stable image quality and functional availability: The elastomer provides a suitable loss factor in the normal high-frequency range to suppress pixel jitter and micro-ripples; when an anomaly occurs, S4 gating enables feedforward anti-shake / content degradation / transient black screen to maintain readability or safe display.

[0193] 4. Improved interconnect reliability: S3 establishes strain loops and fretting suppression in the FPC / connector area, significantly reducing contact wear and pad cracking risks, and extending interconnect life.

[0194] 5. Verifiable and traceable: The S5 evidence package forms a closed loop of type data that is "included with the product from the factory," providing objective evidence during delivery, maintenance, and dispute resolution, and supporting compliance and quality management.

[0195] 6. Assembly consistency and maintainability: Preload / idle stroke / limit is fixed by tooling and inspection fixtures, which facilitates batch consistency; the gate control interface can be continuously optimized through software upgrades. Attached Figure Description

[0196] Figure 1 This is a schematic diagram of the composition of the anti-seismic hybrid vibration isolation device of the present invention. Detailed Implementation

[0197] The integrated vehicle structure proposed in this invention will be described below with reference to embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this invention. Equivalent modifications and substitutions made by those skilled in the art without departing from the spirit and substance of this invention should be included within the scope of protection of this invention.

[0198] Example 1: Three-point decoupled parallel topology—front bumper area

[0199] 1. Application Scenarios and Objectives

[0200] Installation location: inside the front bumper, between the back of the external display module and the anti-collision beam reinforcement.

[0201] Target spectrum: Mixed urban and ring road spectrum, mainly high-frequency and small-amplitude, with occasional speed bumps / pothole impacts.

[0202] Design requirements: high-frequency attenuation during daily use, no bottlenecking during overband, stable image quality, and smooth interconnection.

[0203] 2. Structure and Sub-chain Composition

[0204] Installation interface: Displays the area between the module backplate (aluminum-magnesium alloy plate A6061-T6, t=2.0mm) and the body reinforcement node (steel DP600).

[0205] S1 Hybrid Vibration Isolation Support Subchain:

[0206] Topology: Parallel network of elastomer branches || WRI branches;

[0207] Layout: Three points are arranged equilaterally to form the smallest definite plane, which is beneficial for decoupling and assembly tolerance absorption. S2 preload – limit – energy diversion:

[0208] Preload: Axial compression preload of 0.3–0.6 mm for the elastomer support (equivalent to 10–25% of static deformation);

[0209] Limit: Labyrinth stop, 3.5–5.5mm one-way free travel;

[0210] Flow divider: 18–24° bevel angle, PTFE liner (apparent μ≈0.08–0.12).

[0211] S3 Interconnectivity and Border Governance:

[0212] Before the FPC is seated, there are two strain circuits (R≥10mm), a follow-up guide groove and a micro-motion suppression pad (0.5mm microporous rubber).

[0213] Interface treatment layer: graphite sheet (high in-plane thermal conductivity) + conductive fabric pad (electrical continuity bypass).

[0214] S4 Operation Detection and Gating Interface: Three-axis IMU (±16g, 400Hz), display-side feedforward anti-jitter / degradation / brief blackout state machine.

[0215] S5 Evidence Package: OTP storage + laser QR code nameplate, solidifying manufacturing calibration spectrum, vehicle self-inspection spectrum, type test spectrum and "input-response-function" mapping.

[0216] 3. Materials and Key Parameters

[0217] Elastomer type: HNBR Shore A 60–70, shear loss factor 0.12–0.20 (25℃, 10–120Hz); effective shear height h = 10–14mm.

[0218] WRI branch: AISI 304 multi-strand rope Figure-eight braided rope, with conical wedge clamps at the ends and anti-reverse springs; rated stroke ≥ 8mm.

[0219] Limiting gasket: PTFE patch t=0.8mm, adhesive backing temperature resistant to 120℃; stop body 7075-T6 hard anodized.

[0220] Interface treatment: 200μm graphite sheet + 0.5W / m·K thermally conductive adhesive; conductive fabric nickel-copper plated fiber sheet 80g / m 2 .

[0221] 4. Assembly and preload setting

[0222] The special tooling presses the pre-tightening window until the green mark is visible (qualified); if it is not, the red mark is visible (unqualified).

[0223] Three-point torque cross tightening (M6, 9±1 N·m).

[0224] FPC traces are routed through guide slots to keep the circuits on the same plane; a 0.3mm micro-motion pad is placed under the connector.

[0225] 5. Calibration, Thresholds, and State Machines

[0226] Initial threshold setting: limit trigger relative displacement 4.5±0.5mm or Y-axis peak acceleration ≥2.8–3.2g.

[0227] State machine: S0 Normal (elastomer dominant); S1 Anti-jitter (IMU high frequency ↑, no limit); S2 Degradation (limit light trigger, content low frequency, peak brightness suppression); S3 Protection (continuous trigger or strong trigger, <200ms black screen / low brightness); S4 Reset (set hysteresis 25% to avoid jitter entry and exit).

[0228] 6. Experiments and Results (Summary)

[0229] Multi-axis random vibration: 10–300Hz, Grms = 1.1, 8h, image jitter index decreased by 35–45%, connection resistance drift <5%.

[0230] Half-sine impact: 15g / 11ms×20 times, no "kill", WRI temperature rise <12℃, S3 accumulates 0.6s and automatically returns.

[0231] Hot and cold superposition: 30 cycles from -30 to +70℃, threshold drift <±12%.

[0232] Conclusion: The normal high-frequency attenuation is significant, the switching of the impact segment is smooth, and there is no abnormal fretting wear in the interconnection.

[0233] Example 2: Four-point layout + series-parallel combination - tailgate area

[0234] 1. Scenarios and Challenges

[0235] Location: Between the external display unit and the inner panel of the tailgate, where the impact of opening and closing the door is coupled with the torsional coupling of the vehicle body.

[0236] Objective: To improve torsional stiffness and redundancy, and limit false triggering under the impact of opening and closing doors.

[0237] 2. Topology and Subchains

[0238] S1: The main arrangement is four points; the two points on the upper edge are in parallel (elastic body ∥ WRI), and the two points on the lower edge are in a series-parallel sub-topology of "elastic body → limit → WRI" (local elastic body first, then steel).

[0239] S2: The upper limit travel is slightly smaller (3.0–3.5 mm), and the lower limit travel is slightly larger (4.5–5.0 mm), which realizes the suppression of torsional peak by misalignment triggering.

[0240] S3: The tailgate harness adopts a flexible cable chain + two-stage strain circuit (R≥12 / 18mm), and the follow-up guide groove is arranged along the door hinge normal.

[0241] S4: Door control adds door opening and closing recognition (vehicle CAN door lock status / door position sensor), and locks to S1 anti-shake when opening and closing the door instead of triggering S2 / S3.

[0242] S5: Evidence package records a log distinguishing between "door opening / closing incidents" and "road impact incidents".

[0243] 3. Materials and Parameters

[0244] Elastomer: PU Shore A 70–80, slightly softer at the upper edge (A≈70), slightly harder at the lower edge (A≈78), controls posture.

[0245] WRI: AISI 316 Select 316 stainless steel to resist salt spray from the rear exhaust; double wedges at the end + mechanical locking buckle.

[0246] Limiting gasket: PEEK coating (more wear-resistant than PTFE), μ≈0.12–0.16.

[0247] Door control strategy: Force S1 / L1 (anti-shake) during door opening and closing, unless a >4g impact is detected, then switch to S2 / S3.

[0248] 4. Assembly and Calibration

[0249] Use the lower edge as the reference for positioning (torsion fulcrum); check the upper edge for diagonal difference ≤ 0.3mm.

[0250] Pre-tightening: 0.25–0.35 mm at the top edge and 0.35–0.55 mm at the bottom edge.

[0251] The clearance between the cable chain and the loop should be ≥2.5mm to avoid jamming.

[0252] 5. Experimental Conclusions

[0253] Door closing impact (1.5m / s impactor): If S2 / S3 is triggered without error, the screen will automatically recover after 120ms of L1 degradation.

[0254] Torsional durability (±2.5°@1Hz×2h): Stable posture under diagonal deformation, with no corner "locking".

[0255] Salt spray (96h): No red rust was observed in the WRI test, and no signs of slippage were observed at the clamping points.

[0256] Conclusion: The misalignment triggering is effective in the torsional scenario, the door opening and closing events are clearly separated from road impacts, and the interconnect wear is significantly reduced.

[0257] Example 3: Zoned Peak Shifting and Energy Frequency Division - Front-Face Continuous Display

[0258] 1. Scenario and Objective

[0259] Screen body: Three-tile splicing (T1 / T2 / T3), with large span and significant mass and inertia;

[0260] Objective: To prevent simultaneous triggering from causing energy superposition peaks; to prevent cross-tile interconnects from cracking.

[0261] 2. Partitioning and Topology

[0262] S1: Each tile is equipped with a sub-support group (2×elastomer∥1×WRI), and a boundary buffer support (elastomer sheet + micro-motion pad) is added at the boundary between tiles.

[0263] S2: Limiting peak shifting: T1 idle distance 3.5mm, T2 4.2 mm, T3 5.0 mm; energy shunting ramp angles are 16° / 20° / 24° respectively, realizing graded triggering from the edge first and then the middle.

[0264] S3: The FPC across the tiles adopts a redundant strain circuit (1.5 loops per span, R≥15mm) + a follow-up floating bridge (thin aluminum beam + soft limit block). The floating bridge moves in tandem with the relative displacement of the tiles to reduce pulling.

[0265] S4: Gating introduces zone awareness on multi-tiles: when S2 / S3 is triggered in a certain area, the entire screen content enters L1; if two areas are triggered consecutively, the whole screen switches to L2 (stronger degradation); if all three areas are triggered simultaneously, S3 black screen is only triggered by extreme impacts >5g.

[0266] S5: The evidence package records the "input-response-function" mapping between each tile and the entire screen, supporting local diagnosis.

[0267] 3. Materials and Parameters

[0268] Elastomer: EPDM A≈60 (boundary buffer), main support HNBR A≈68;

[0269] WRI: Double-stranded cable (Middle tile) / (Edge tiles);

[0270] Interface treatment layer: Thickened graphite sheet (t=300μm) below the middle tile + thermally conductive gel on both sides (0.5mm each) to achieve uniform temperature;

[0271] Frequency division design: By using different bevel angles and padding combinations (PTFE / PEEK), energy is directed towards the elastomer in the mid-to-high frequency range and towards the WRI in the low-frequency large displacement range.

[0272] 4. Experiments and Observations

[0273] Speed ​​bump series (30 / 40 / 60km·h-1): The triggering sequence is edge → center, and the peak displacement is reduced by 22–30% compared with the same empty distance scheme;

[0274] Continuous pitting: When multiple peak-shifting triggers occur, the interconnecting floating bridges effectively share the relative displacement, and the pads are free of cracks;

[0275] Image quality: Under L1 / L2 strategies, readability and brightness are well balanced, and the average black screen time for S3 is 160ms.

[0276] 5. Conclusion

[0277] Zoned peak shifting and energy frequency division prevent large screens from "jumping together," resulting in high survival rates for cross-tile interconnection and overall screen viewing experience control.

[0278] Example 4 (Corrosion Resistance and Low Temperature Strengthening): Sea Salt / Extreme Cold Composite Environment—Bumper + Wheel Arch Area

[0279] 1. Scenarios and Challenges

[0280] When used near the coast or in extremely cold regions, salt spray and low-temperature embrittlement coexist; water splash, mud, and ice formation have a significant impact on the wheel arch area.

[0281] 2. Subchain and Material Strategy

[0282] S1: WRI: AISI 316L Dry solid lubricant coating (MoS2 / graphite-based) reduces interfilament wear;

[0283] Elastomer: Low-temperature compliant PU formulation (maintains acceptable shear modulus at -35℃), Shore A≈65.

[0284] S2: The limiting gasket is made of ceramic-coated aluminum plate (alumina spraying + sealing), which has good wear resistance and salt spray resistance; the idle stroke is appropriately increased by 0.5mm to avoid "early triggering" caused by low temperature shrinkage.

[0285] S3: The interconnect perimeter is coated with a hydrophobic / ice-repellent coating (fluorosilicone modified) and a drainage channel; the interface treatment layer is enhanced with a metal braided shielding strip, which also serves as a static electricity bypass.

[0286] S4: Temperature correction is introduced for the gating threshold (for temperatures < -15℃, the trigger threshold is increased by 10–15%).

[0287] S5: The evidence package adds environmental labels: temperature range and cumulative count of salt spray exposure time.

[0288] 3. Experiments and Results

[0289] Salt spray test for 240 hours: No red rust observed in WRI, and the torque attenuation of fasteners after end clamping is less than 5%.

[0290] -35℃ impact (15g / 8ms×20): No "brittleness" or "stun", S3 screen returned to normal after 180–220ms after black screen;

[0291] De-icing / re-icing cycle: Limiting gasket wear depth <20μm / 1000 cycles.

[0292] 4. Conclusion

[0293] The synergistic design of corrosion resistance and low temperature resistance is effective, and temperature correction avoids false triggering and material embrittlement failure, ensuring long-term stability in service.

[0294] Example 5 (Manufacturing and Cost Optimization): Standardization + CTQ Control – Side Door Area

[0295] 1. Objective

[0296] While ensuring broadband vibration isolation and functional retention, we aim to reduce manufacturing costs, shorten assembly cycle time, and improve consistency and traceability.

[0297] 2. Structure and process

[0298] S1: The elastomer support adopts a family of standard parts with replaceable rubber sleeves and metal cups, with three specifications covering 80% of vehicle model differences; WRI adopts a modular design with standard length series (L1 / L2 / L3) and universal end caps (cone wedge + mechanical locking).

[0299] S2: The limiting component is made of die-cast aluminum as a single piece (integrated guide ramp and stop); the gasket is a replaceable patch (PTFE / PEEK, two grades), and the patch is selected on-site according to the customer's specifications.

[0300] S3: Follow-up guide groove injection molding part (with buckle), no screws required; micro-motion pad roll material punching, station attachment.

[0301] S4: The gate control software parameter package is preset according to the vehicle model SKU, and only the SKU number is written when installing the vehicle; OTA upgrade only changes the state machine threshold, without changing the underlying driver.

[0302] S5: The evidence package uses dual storage of QR code and write-protected EEPROM; CTQ data is acquired by the production line automation station and written in real time (preload displacement, torque, idle distance measurement, IMU self-test).

[0303] 3. CTQ and Process Capability

[0304] CTQ List: Preload Displacement (mm); Limit Stroke (mm); End Tightening Torque (N·m); WRI Free Travel (mm); Gasket Friction Coefficient Grade (A / B);

[0305] FPC loop radius (mm); guide groove free clearance (mm).

[0306] Cpk target: Critical dimension Cpk ≥ 1.33; if < 1.0, batch isolation + re-inspection. Sampling inspection: 1 piece out of every 50 pieces is randomly selected for micro-spectrum playback to correct assembly deviations.

[0307] 4. Assembly SOP (written)

[0308] 1. Install WRI into the assembly housing, with an end clamping torque of 10±1 N·m;

[0309] 2. Press the elastomer sleeve into the cup and place it into the housing seat;

[0310] 3. Insert the die-cast aluminum limiting component and attach the liner (scan the code to bind the batch);

[0311] 4. Apply pre-tension using a special tooling to the green window (record the value in mm);

[0312] 5. Lay the interface treatment layer and micro-movement pads, and run the FPC according to the guide groove to form a loop;

[0313] 6. Tighten the bolts connecting the housing to the vehicle body (using the crisscross method);

[0314] 7. Perform the vehicle self-inspection process (30 seconds), automatically generating an evidence package summary and conformity label. 5. Cost and Consistency Benefits (Example)

[0315] The number of parts is reduced by 18–25%; the assembly cycle time is shortened by 22–30%;

[0316] The return rate decreased by 35% (with a significant reduction in defects mainly related to interconnection / micro-motion);

[0317] Evidence package coverage is 100%, and after-sales location time is reduced by 40%+.

[0318] Supplementary Explanation

[0319] 1. Gated state machine logic (applicable to all embodiments):

[0320] S0 normal: Elastomer-dominated, high-frequency attenuation;

[0321] S1 Anti-shake: IMU detects high-frequency enhancement but without limitation, and renders phase feedforward correction;

[0322] S2 Degradation: Limiting light touch enables content low-frequency reduction and brightness transition suppression;

[0323] S3 Protection: Strong touch or continuous triggering, brief black screen / low brightness hardware protection;

[0324] S4 Regression: Hysteresis recovery, step-by-step exit, preventing "tug-of-war".

[0325] 2. Suggested fields for evidence package:

[0326] Equipment ID / batch / timestamp; manufacturing calibration spectrum, vehicle self-inspection spectrum, type test spectrum;

[0327] Threshold and state machine parameter versions; trigger logs (time, axial peak, duration);

[0328] Maintenance counts (gasket wear estimation, WRI count, temperature / salt spray label);

[0329] Signature verification and write protection information.

[0330] 3. Recommended test methods:

[0331] Multi-axis random vibration (with bandwidth / Grms customized based on the target spectrum of the whole vehicle);

[0332] Half-sine / trapezoidal impact (multiple amplitudes / multiple durations);

[0333] Temperature fluctuations (-30 to +70℃, or expanded by region);

[0334] Salt spray / humid heat / sand and dust / splash freezing (selectable according to the scenario);

[0335] Functional testing: screen jitter index, connection resistance drift, black screen duration and recovery time.

[0336] 4. Non-limiting materials and alternatives:

[0337] The elastomer can be replaced with silicone rubber, FKM, EPDM, low-temperature formulated PU, etc.

[0338] WRI can be replaced with 304 / 316 / coated carbon steel and different winding methods (cross / figure-eight);

[0339] The gasket material can be replaced with PTFE / PEEK / UHMWPE / ceramic coating;

[0340] The interface treatment layer can be any combination of thermally conductive graphite sheets / metal sheets + thermally conductive adhesive / gel, conductive fabric / elastic contacts, etc.

[0341] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0342] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A broadband anti-seismic hybrid vibration isolation device, characterized in that: include: —The mounting interface that forms the main load path between the display module and the vehicle body exterior panels; as well as —An indivisible collaborative chain cascaded around the main load path in a predetermined manufacturing / assembly / operation sequence, the collaborative chain including at least one or more of the following sub-chains: S1) Hybrid vibration isolation support sub-chain: It is a mechanical network consisting of parallel or series-parallel branches of all-metal wire rope vibration isolators (WRI) and elastomer branches. The WRI branches are designed to bear loads and dissipate energy through metal bending, torsion and friction under impact and large displacement inputs. The elastomer branches are designed to dominate the stiffness and damping of the transmission path under high-frequency small-amplitude inputs of the road spectrum. S2) Pre-tightening-limiting-energy diversion sub-chain: Through initial pre-tightening, directional idle and geometric limit settings, the elastomer branch takes effect first under normal working conditions, and when the input reaches the preset threshold, it triggers the switch of the limited path dominated by the limit and WRI branch, thereby realizing the sequential triggering and graded energy consumption from "high frequency / small amplitude → impact / large amplitude". S3) Interconnection and Boundary Governance Subchain: Provides strain loops, follow-up guides and micro-motion suppression components near the electrical connection / flexible interconnect of the vibration isolation device and the display module to suppress contact micro-motion, pad cracking and pixel jitter caused by residual vibration; S4) Operation detection and gating interface sub-chain: Hardware interface with vehicle IMU / accelerometer sensing and control logic, used to link the pixel feedforward anti-shake / content degradation or transient black screen bypass on the display side after input spectrum abnormality or trigger limit, thereby limiting the impact of structural residual response on display function to an acceptable range. S5) Evidence package included with the product: an immutable calibration and type test data carrier that corresponds one-to-one with the device, recording at least the sequential triggering, energy diversion and functional maintenance relationship of the hybrid vibration isolation under normal road spectrum and impact spectrum, for verification and secondary consideration in delivery, maintenance or dispute scenarios. Among them, S1–S5 form a synergistic effect through commonly defined boundary conditions, triggering sequence and energy distribution relationship: under normal working conditions, the elastic body branch controls high frequency transmission and stabilizes the display quality, while the impact / limit displacement is borne by the WRI branch and guided into the restricted energy dissipation path through the limit, thereby realizing broadband vibration isolation of the through-channel spectrum and impact spectrum and maintaining the continuity of display function or controlled degradation.

2. A synergistic method for broadband vibration isolation and function preservation, characterized in that: include: Step M1: Set the initial preload of the elastomer branch, the directional arrangement of the WRI branch, and the limit travel during the manufacturing / assembly stage; Step M2: Under normal road spectrum, the high frequency transmission is preferentially carried by the elastomer branch and suppressed by shear damping; Step M3: When the input reaches the threshold trigger limit, the transmission path is switched to a restricted energy dissipation path dominated by the WRI branch to counteract the impact / large displacement. Step M4: In step M2 or M3, linkage interconnection and boundary management are used to suppress micro-motion and strain concentration, and feedforward anti-jitter / degradation on the display side is triggered as needed via the gating interface; Step M5: Record the spectrum-response-function mapping of steps M1-M4 using the factory evidence package for delivery and post-delivery verification.

3. The apparatus according to claim 1, characterized in that: The device configures the all-metal WRI only as an impact / large displacement shunt rather than as the sole support for low-frequency normal vibration isolation; and avoids using a single elastomer to bear both impact and high-frequency inputs across the entire frequency band, thereby reducing functional drift caused by material nonlinearity and thermal-vibration coupling.

4. The apparatus according to claim 1, characterized in that: The collaborative chain is provided with solutions for the following situations: a) "Flickering / micro-motion wear" of pixels / interconnects caused by high-frequency residual vibrations - dominated by elastomer branches in the normal range and suppressed by shear damping; b) The support "bottom contact / tear / permanent deformation" caused by impact loading is borne by the WRI branch after the limit trigger and counteracted by the energy dissipation of metal bending and torsion and interface friction; c) Secondary load transfer caused by path switching - the force transmission path is defined by the energy diversion component and the gating interface is linked to degrade the subsystem function when necessary.

5. The apparatus according to claim 1, characterized in that: The evidence package chain includes at least one of the following: factory calibration spectrum, vehicle self-test spectrum, and type test spectrum, recorded in the form of mechanical nameplate / laser QR code / read-only storage medium, as well as an "input-response-functional state" mapping corresponding to the S1-S4 trigger sequence.

6. The apparatus according to claim 1, characterized in that: The WRI branch is a cross-wound or figure-eight braided all-metal wire rope vibration isolator. The end metal joint is connected to the installation interface through anti-rotation and anti-loosening clamping or wedging components, and is arranged in three or four points along two or three main axes to form spatial decoupling.

7. The apparatus according to claim 1, characterized in that: The elastomeric branch is a shear-compression composite support, whose geometry and materials are configured to provide dominant damping and equivalent stiffness in the small displacement / high frequency range, while in the large displacement range it transitions to a restricted path via the limiter to prevent the elastomeric body from bearing the maximum impact strain.

8. The apparatus according to claim 1, characterized in that: The preload-limit-energy shunt subchain includes: a visual preload indicator mechanism, a labyrinthine limiter with directional clearance, and a low-friction / wear-resistant pad; the mechanisms together define the triggering sequence and energy distribution of the device, first the elastomer, then the WRI.

9. The apparatus according to claim 1, characterized in that: The S1) hybrid vibration isolation support sub-chain is composed of the following non-detachable cooperative chains in a predetermined start-stop sequence: A) All-metal wound cable isolator subchain (WRI), which becomes the main load path when the relative displacement or acceleration reaches a preset threshold, in order to withstand impact input and low-frequency large displacement and provide travel margin. B) The elastomer subchain provides high-frequency isolation and micro-motion suppression as the main load path in the high-frequency domain of the normal road spectrum, and shares energy with the WRI frequency / phase division after threshold triggering; C) Gating-limiting mechanism, which defines the triggering sequence from "high frequency priority → impact priority" through idle stroke, inclined / wedge or controllable stop, and controls the switching and energy diversion of the energy dissipation phase of the elastomer subchain and the bearing phase of the WRI during the triggering process; D) Interface treatment layer, which is set at the connection interface between the hybrid vibration isolation seat and the display module / body outer covering, is used to suppress contact micro-motion and contact resistance drift in the high frequency domain and provide thermal bypass and electrical continuity bypass to avoid optical / electrical connection failure caused by thermal-vibration coupling. Among them, A) to D) achieve broadband vibration isolation through commonly defined boundary conditions, triggering sequence and energy distribution relationship: in the normal vibration domain, the elastic body sub-chain dominates and high frequency attenuation occurs; in the impact domain, WRI dominates and the protective structure and pixel interconnection occur; in the transition domain, the gating-limiting mechanism distributes energy between the two sub-chains in frequency and phase, thereby maintaining the functional stability or controlled failure of the external display system under all operating conditions.

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