Magnetic coupling suspension power generation device and vehicle

Abstract

The application provides a magnetic coupling suspension power generation device and a vehicle, and relates to the field of energy recovery. The magnetic coupling suspension power generation device comprises a stator assembly, an outer mover assembly and an inner mover assembly. The outer mover assembly is connected with a vehicle frame or a shock absorber and can generate multi-dimensional vibration synchronously with the vibration of the vehicle suspension. The inner mover assembly is movably arranged inside the stator assembly and can move axially along the axis of the stator assembly. The side of the outer mover assembly facing the inner mover assembly has the same polarity as the side of the inner mover assembly facing the outer mover assembly, and at least one side of the outer mover assembly close to the stator assembly is formed as a wedge-shaped inclined surface. When the outer mover assembly generates multi-dimensional shaking, the inner mover assembly is driven to move axially reciprocally, the inner mover assembly cuts the magnetic induction lines of the induction coil reciprocally, and then the induction electric energy is generated, the vibration energy recovery and power generation are realized, and then the multi-dimensional energy is captured, so that the energy recovery rate is improved and energy waste is avoided.

Description

Technical Field

[0001] This application relates to the field of vehicle energy recovery technology, and in particular to a magnetically coupled suspension power generation device and a vehicle. Background Technology

[0002] As vehicles become increasingly intelligent, the number of onboard sensors, condition monitoring devices, and other electrical equipment continues to grow, leading to higher and higher energy demands on vehicles.

[0003] During vehicle operation, vibrations generated by uneven road surfaces and working conditions contain a significant amount of recoverable mechanical energy. Therefore, current vehicles are equipped with generators to collect this mechanical energy and convert it into electrical energy to power electrical equipment.

[0004] However, current power generation devices can only recover the mechanical vibrations in the vertical direction when a vehicle vibrates. During the vehicle's operation, it often generates severe lateral vibrations, pitching vibrations, and horizontal acceleration and deceleration, among other multidimensional vibrations. The vibration energy in these areas cannot be effectively recovered, resulting in energy waste and a low energy recovery rate. Summary of the Invention

[0005] The purpose of this application is to provide a magnetically coupled suspension power generation device and a vehicle, aiming to solve the problem of how to improve the energy recovery rate of vehicles.

[0006] In a first aspect, embodiments of this application provide a magnetically coupled suspension power generation device, comprising: A stator assembly for mounting on a vehicle frame or shock absorber, wherein the stator assembly has an induction coil; An external moving part is sleeved outside the stator assembly and flexibly connected to the vehicle frame or shock absorber. The external moving part can generate multi-dimensional vibrations relative to the stator assembly as the vehicle vibrates. The multi-dimensional vibrations include at least pitch vibration, roll vibration and horizontal impact vibration. An internal moving part assembly is disposed within the stator assembly and is capable of reciprocating along the axial direction of the stator assembly; The magnetic poles of the outer moving part and the inner moving part are aligned on the side closest to each other, and at least the side of the outer moving part that is close to the stator assembly forms a wedge-shaped slope. The inner moving part and the outer moving part are magnetically coupled and locked. The inner moving part can move along the axial direction of the stator assembly under the drive of the multidimensional vibration of the outer moving part to cut the induction coil and generate induced electrical energy. Furthermore, the external moving sub-assembly can slide relative to the internal moving sub-assembly to release the coupling lock when the force of multidimensional vibration is greater than the coupling magnetic force between the internal moving sub-assembly and the external moving sub-assembly.

[0007] In some embodiments, the external actuator assembly includes an annular support extending circumferentially along the stator assembly and a plurality of first permanent magnets arranged sequentially circumferentially along the annular support, wherein the magnetization direction of each first permanent magnet is arranged radially along the stator assembly.

[0008] In some embodiments, the internal moving part assembly includes a plurality of second permanent magnets arranged sequentially along the axial direction of the stator assembly, wherein the magnetization direction of each second permanent magnet is arranged along the radial direction of the stator assembly.

[0009] In some embodiments, the magnetically coupled suspension power generation device further includes at least two suspension structures, wherein at least one suspension structure is provided between the external moving sub-assembly and the frame or shock absorber at both ends along the axial direction of the stator assembly, one end of the suspension structure is connected to the external moving sub-assembly, and the other end of the suspension structure is used to connect to the frame or shock absorber.

[0010] In some embodiments, the suspension structure includes a spring or rubber.

[0011] In some embodiments, the stator assembly is provided with at least two limiting structures, which are respectively disposed at both ends of the stator assembly along the axial direction, so as to restrict the inner moving part from sliding out of the stator assembly when the inner moving part and the outer moving part are decoupled and locked.

[0012] In some embodiments, the limiting structure includes a magnetic repulsion stop structure that coincides with the magnetic poles of the internal moving part assembly.

[0013] In some embodiments, the stator assembly includes a housing that encloses an inner cavity for accommodating the inner actuator assembly; and the housing is a shell structure with a hollow cavity, the induction coil being disposed within the hollow cavity; the shell wall of the housing is provided with cooling exhaust holes communicating with the hollow cavity and the inner cavity.

[0014] In some embodiments, the stator assembly has a cylindrical structure for mounting over the shock absorber.

[0015] Secondly, embodiments of this application also provide a vehicle, including a suspension and a magnetically coupled suspension power generation device disposed on the suspension.

[0016] The beneficial effects of this invention are: This application provides a magnetically coupled suspension power generation device and a vehicle. The magnetically coupled suspension power generation device includes a stator assembly, an outer moving part assembly, and an inner moving part assembly. The stator assembly is fixedly mounted to the vehicle frame or shock absorber, and an induction coil is disposed inside the stator assembly. The outer moving part assembly is coaxially sleeved on the outside of the stator assembly and flexibly connected to the frame or shock absorber, enabling the outer moving part assembly to synchronously generate multidimensional vibrations in response to vehicle vibrations. These multidimensional vibrations include at least pitch vibrations, roll vibrations, and horizontal impact vibrations. The inner moving part assembly is movably disposed inside the stator assembly and can reciprocate axially relative to the stator assembly along its axis. The magnetic pole polarities of the side of the outer moving part assembly facing the inner moving part assembly are the same as those of the side of the inner moving part assembly facing the outer moving part assembly, and at least the side of the outer moving part assembly closest to the stator assembly forms a wedge-shaped inclined surface. The inner and outer moving parts assemble in a magnetically coupled and locked state by magnetic repulsion between their same magnetic poles. When the vehicle is in motion, the outer moving part generates multidimensional swaying under the vibration of the vehicle. Under the action of the wedge-shaped inclined plane, the radial magnetic repulsion force is decomposed into axial and horizontal components. This allows the inner moving part to reciprocate relative to the stator assembly along the axial direction under the action of the axial component. The reciprocating motion of the inner moving part cuts the magnetic field lines of the induction coil, thereby generating induced electrical energy. This realizes the energy recovery and power generation of multidimensional vibration, thereby improving the energy recovery rate and avoiding energy waste.

[0017] Meanwhile, the magnetic coupling suspension power generation device of this application has a flexible overload protection function. That is, when the vehicle is under severe bumps and harsh working conditions, when the instantaneous force of multidimensional vibration is greater than the coupling magnetic force between the inner moving part and the outer moving part, the outer moving part will slide relative to the inner moving part along the circumferential direction of the stator assembly, that is, magnetic slippage occurs, thereby automatically releasing the magnetic coupling lock to achieve overload protection and avoid mechanical damage. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the magnetically coupled suspension power generation device shown in the embodiment of this application; Figure 2 This is a schematic diagram of the magnetically coupled suspension power generation device in the magnetic coupling lock portion as shown in the embodiment of this application; Figure 3 This is a partial structural schematic diagram of the magnetic coupling suspension power generation device shown in the embodiments of this application, indicating the release of magnetic coupling lock. Figure 4 This is a schematic diagram of the working logic of the magnetically coupled suspension power generation device shown in the embodiment of this application.

[0020] Figure label: 100. Stator assembly; 110. Induction coil; 120. Limiting structure; 130. Housing; 131. Inner cavity; 132. Hollow cavity; 133. Cooling exhaust port; 200. External mover assembly; 210. Ring support; 220. First permanent magnet; 300. Internal mover assembly; 400. Wedge-shaped inclined surface; 500. Suspension structure; 600. Connecting frame. Detailed Implementation

[0021] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0022] In embodiments of this application, 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 limitation, 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 that element.

[0023] Reference Figures 1 to 4 As shown, this application provides a magnetically coupled suspension power generation device, including a stator assembly 100, an external moving part assembly 200, and an internal moving part assembly 300.

[0024] The stator assembly 100 is used for mounting on the vehicle frame or shock absorber and the stator assembly 100 has an induction coil 110.

[0025] The external moving part 200 is sleeved outside the stator assembly 100 and flexibly connected to the frame or shock absorber. The external moving part 200 can generate multi-dimensional vibration relative to the stator assembly 100 as the vehicle vibrates. The multi-dimensional vibration includes at least pitch vibration, roll vibration and horizontal impact vibration.

[0026] The internal moving part assembly 300 is disposed within the stator assembly 100 and can reciprocate along the axial direction of the stator assembly 100.

[0027] The magnetic poles of the outer moving part 200 and the inner moving part 300 on their adjacent sides are aligned, and at least the side of the outer moving part 200 closest to the stator assembly 100 forms a wedge-shaped inclined surface 400. The inner moving part 300 and the outer moving part 200 are magnetically coupled and locked together. The inner moving part 300 can move along the axial direction of the stator assembly 100 under the influence of the multidimensional vibration of the outer moving part 200 to cut the induction coil 110 and generate induced electrical energy. The outer moving part 200 can slide relative to the inner moving part 300 to release the coupling lock when the force of the multidimensional vibration is greater than the coupling magnetic force between the inner moving part 300 and the outer moving part 300.

[0028] In a specific implementation, the stator assembly 100 can be mounted on the vehicle's suspension frame or shock absorber via the connecting bracket 600. The stator assembly 100 serves to provide a mounting carrier for mounting the induction coil 110 and to limit and guide the axial movement of the internal moving sub-assembly 300.

[0029] Specifically, the stator assembly 100 can be configured as a cylindrical structure to fit the shape of the vehicle's shock absorber. That is, the stator assembly 100 can be directly fitted onto the outside of the shock absorber's cylinder block, eliminating the need to change the axial length and original travel of the shock absorber during installation. This avoids significant modifications to the vehicle's suspension structure, making installation more convenient and adaptable to the existing suspension layout of non-road mobile machinery. Examples of non-road mobile machinery include excavators or mining trucks.

[0030] Specifically, the stator assembly 100 has a hollow internal structure to accommodate the inner moving part assembly 300, ensuring that the inner moving part assembly 300 can move freely along the axial direction of the stator assembly 100. The specific axial direction can be found in [reference needed]. Figure 1 The z-direction is shown. At the same time, the stator assembly 100 is provided with an induction coil 110. As the core component for power generation, the induction coil 110 cuts the magnetic field lines of the induction coil 110 when the inner moving part assembly 300 reciprocates along the axial direction of the stator assembly 100, thereby generating induced electrical energy to provide power for on-board sensors, monitoring equipment and other electrical equipment to meet the needs of intelligent vehicle development.

[0031] Specifically, the external moving part 200 is sleeved on the outside of the stator assembly 100 and connected to the frame or shock absorber. The external moving part 200 is an inertial magnetic capture ring structure, which is used to capture multidimensional vibrations during vehicle driving and operation, and convert the multidimensional vibrations into the axial motion of the internal moving part 300 through magnetic coupling.

[0032] In practical implementation, the external actuator 200 can generate multidimensional vibrations relative to the stator assembly 100 in response to vehicle vibrations. These multidimensional vibrations include at least pitch vibrations, roll vibrations, and horizontal impact vibrations commonly encountered during vehicle operation, perfectly adapting to the complex operating conditions of non-road mobile machinery. This improves energy recovery rates and solves the problem of existing power generation devices only capturing vertical vibrations, resulting in significant energy waste. It should be noted that roll vibration typically refers to the vehicle tilting or swaying left or right, where "left" refers to the width direction of the vehicle. Pitch vibration refers to the vehicle nodding up and down, the front or rear tilting up, or the vehicle swaying back and forth, where "back and forth" refers to the direction from the front to the rear. Horizontal impact vibration refers to vibrations parallel to the width or length of the vehicle.

[0033] In this embodiment, the magnetic poles of the outer moving sub-assembly 200 and the inner moving sub-assembly 300 on their closest sides are aligned to form a stable magnetic levitation or magnetic spring effect. This allows the inner moving sub-assembly 300 to form a stable magnetic coupling lock with the outer moving sub-assembly 200 under the action of the magnetic repulsion force. That is, when there is no external vibration or the vibration is small, the outer moving sub-assembly 200 and the inner moving sub-assembly 300 form a stable relative fixation, that is, no relative slippage will occur. Here, slippage refers to slippage along the circumferential direction of the stator assembly 100.

[0034] In this embodiment, refer to Figure 1 As shown, at least one side of the outer actuator 200 near the stator assembly 100 forms a wedge-shaped inclined surface 400. By setting the wedge-shaped inclined surface 400 in conjunction with the same-pole magnetic repulsion force, the radial magnetic repulsion force of the outer actuator 200 can be decomposed into an axial component force, thereby driving the inner actuator 300 to move along the axial direction of the stator assembly 100, realizing the energy conversion of multi-dimensional input and one-dimensional output.

[0035] Alternatively, in other implementations, the side of the outer moving part 200 near the stator assembly 100 and the side of the inner moving part 300 near the outer moving part 200 can be configured to form mutually compatible wedge-shaped mating surfaces, so as to decompose the radial magnetic repulsion force into an axial component force to drive the inner moving part 300 to move axially and cut the induction coil 110 to generate electricity.

[0036] The inner moving part assembly 300 is located in the hollow cavity of the stator assembly 100 and can move relative to the stator assembly 100 along the axial direction of the stator assembly 100. Its core function is to perform axial reciprocating motion under magnetic coupling, thereby cutting the induction coil 110 to generate induced electrical energy. At the same time, it works with the outer moving part assembly 200 to realize flexible overload protection function.

[0037] Specifically, there is no physical contact between the inner moving component 300 and the outer moving component 200. Non-contact magnetic coupling locking is achieved through a radial magnetic field. This non-contact engagement eliminates the mechanical friction and wear defects common in existing mechanical connections, thus avoiding the jamming and failure issues that traditional mechanical transmission methods are prone to in harsh conditions such as mud and dust. This improves the reliability and service life of the entire magnetically coupled suspension power generation device. For example, traditional mechanical connections typically use linkages, gears, or other structures to achieve transmission connections.

[0038] The working process of the magnetically coupled suspension power generation device in this embodiment is as follows: (Refer to...) Figure 1 and Figure 2 As shown, when the multidimensional vibration force on the external moving component 200 is within the normal range, that is, when it is subjected to conventional vibration, the internal moving component 300, under the magnetic coupling locking action, is linked by the multidimensional vibration of the external moving component 200 and moves along the axial direction of the stator component 100 under the force decomposition action of the wedge-shaped inclined plane 400, so as to cut the induction coil 110 to generate stable induced electrical energy, thereby improving the energy recovery rate.

[0039] Reference Figure 1 and Figure 3 As shown, when the force of multidimensional vibration exceeds the coupling magnetic force between the inner moving component 300 and the outer moving component 200, the magnetic coupling lock between the outer moving component 200 and the inner moving component 300 is released. The outer moving component 200 slides relative to the inner moving component 300 along the circumferential direction of the stator component 100, achieving overload decoupling and preventing the magnetically coupled suspension power generation device from being damaged by severe impact. The specific direction of the circumferential sliding is shown in the figure. Figure 3 The F shown 打滑 direction shown.

[0040] Furthermore, when the force of multidimensional vibration is greater than the coupling magnetic force, the overload energy can be consumed by the hysteresis damping of the inner mover assembly 300 and the outer mover assembly 200, as well as the induced eddy current damping in the stator assembly 100. The eddy current loss and the induced eddy current heat loss work (Q) generated by the stator assembly 100 are also considered. eddy The frequency (f) of the magnetic field change of the entire magnetic coupling suspension power generation device is related to the coupling magnetic induction intensity (B). Ultimately, the energy consumed during the slippage process is converted into heat energy, effectively suppressing the induced electromotive force. The instantaneous peak value. Where E is the induced electromotive force, i.e., electrical energy; n is the number of turns of the induction coil 110; t is the rate of change of magnetic flux.

[0041] In this embodiment, in order to quantitatively describe the conversion process of vibration force into electrical energy, the radial displacement generated by the external actuator assembly 200 is set as Δ. r The corresponding radial magnetic repulsion force Fr satisfy: .

[0042] Where S is the end face area of ​​the inner moving part assembly 300 at either end along the axial direction of the stator assembly 100, and B... n and B t denoted as the normal and tangential components of the magnetic flux density of the coupling gap, respectively, and μ0 is the free permeability.

[0043] According to the principle of virtual work, the axial component F of this force is transformed. z for: , where α is the inclination angle of the wedge-shaped inclined plane at 40°.

[0044] Furthermore, the critical condition for achieving overload decoupling is:

[0045] in The magnetic locking threshold, m outer For the overall mass of the external drive component 200, The radial vibration acceleration of the external actuator assembly 200 For coupling magnetic force.

[0046] Reference Figures 1 to 3 As shown, in some embodiments, the external actuator assembly 200 includes an annular support 210 extending circumferentially along the stator assembly 100 and a plurality of first permanent magnets 220 arranged sequentially circumferentially along the annular support 210, wherein the magnetization direction of each first permanent magnet 220 is arranged radially along the stator assembly 100.

[0047] In practical implementation, the annular bracket 210 can achieve 360° omnidirectional vibration sensing. Multiple first permanent magnets 220 arranged circumferentially form a permanent magnet array. Radial magnetization can construct a high-gradient radial magnetic field, enhancing the magnetic coupling force with the inner moving part assembly 300. This ensures that the multidimensional vibrations captured by the outer moving part assembly 200 can be stably transmitted to the inner moving part assembly 300, improving energy conversion efficiency. At the same time, the annular structure is compact and can be adapted to the cylindrical structure of the stator assembly 100, further optimizing the overall volume of the magnetic coupling suspension detection device and facilitating installation within the limited space of the vehicle's suspension.

[0048] For example, the shape of the first permanent magnet can be set as follows: Figure 1 The irregular shapes shown, such as those in the reference... Figure 1As shown, the first permanent magnet includes a portion with a partial wedge-shaped inclined surface 400 near the inner moving part assembly 300 and a rectangular portion away from the inner moving part assembly 300 and disposed within the annular support 210. At this time, the inner surfaces of all portions with partial wedge-shaped inclined surfaces 400 facing the inner moving part assembly 300 can jointly form two wedge-shaped inclined surfaces 400 distributed sequentially along the axial direction.

[0049] Reference Figure 1 As shown, in some embodiments, the internal moving part assembly 300 includes a plurality of second permanent magnets arranged sequentially along the axial direction of the stator assembly 100, and the magnetization direction of each second permanent magnet is arranged along the radial direction of the stator assembly 100.

[0050] In practice, the radially magnetized second permanent magnet and the first permanent magnet 220 of the outer moving part 200 form a symmetrical radial magnetic field, ensuring the stability of the magnetic coupling lock between them. Multiple axially arranged second permanent magnets enhance the magnetic field strength of the inner moving part 300, increasing the magnetic repulsion between it and the outer moving part 200, thereby increasing the driving force of the axial component and making the axial movement of the inner moving part 300 more stable and the power generation efficiency higher. Simultaneously, this arrangement creates a stable magnetic levitation effect, reducing friction between the inner moving part 300 and the stator assembly 100, further extending the service life of the magnetically coupled suspension power generation device.

[0051] For example, the internal moving component 300 can be formed as a regular rectangular structure or a cylindrical structure.

[0052] In addition, two regular rectangular second permanent magnets can be provided at both ends of the axial direction of the internal moving part assembly 300, and the middle second permanent magnet can be irregular in shape. For example, the middle second permanent magnet includes a rectangular part in the middle and pointed parts at both ends of the rectangular part along the radial direction of the stator assembly 100. The specific shape of the second permanent magnet can be set according to actual needs.

[0053] Furthermore, the magnetization direction of the second permanent magnet refers to the arrangement direction of the N pole and S pole of the second permanent magnet in the radial direction of the stator assembly 100. For example, the N pole of the second permanent magnet can be set close to the outer moving part assembly 200, while the N pole of the first permanent magnet of the outer moving part assembly 200 is set close to the inner moving part assembly 300, so that a reliable magnetic repulsion force can be formed between the two to achieve magnetic coupling and locking.

[0054] Reference Figure 1As shown, in some embodiments, the magnetically coupled suspension power generation device further includes at least two suspension structures 500. At least one suspension structure 500 is provided between the external moving part assembly 200 and the frame or shock absorber at both ends along the axial direction of the stator assembly 100. One end of the suspension structure 500 is connected to the external moving part assembly 200, and the other end of the suspension structure 500 is used to connect to the frame or shock absorber.

[0055] In this embodiment, the suspension structure 500 is used to achieve a flexible connection between the external drive sub-assembly 200 and the vehicle suspension frame or the shock absorber, allowing the external drive sub-assembly 200 to undergo multi-dimensional free vibration relative to the stator assembly 100, ensuring that the external drive sub-assembly 200 can fully capture the multi-dimensional vibrations of the vehicle, such as pitch, roll, and horizontal impact. At the same time, the suspension structure 500 can also provide a certain degree of buffering for the vibration of the external drive sub-assembly 200, preventing the external drive sub-assembly 200 from directly impacting the frame or shock absorber due to severe vibration, thereby protecting the structural safety of the vehicle's suspension.

[0056] For example, the suspension structure 500 includes a spring or rubber, both of which are flexible connection components. The rubber can utilize its viscoelastic deformation to achieve multi-dimensional vibration isolation and buffering, and can allow the external actuator assembly 200 to vibrate in multiple dimensions relative to the stator assembly 100. The spring, on the other hand, can utilize its elastic deformation to broaden the vibration response frequency band of the external actuator assembly 200, ensuring that the entire magnetically coupled suspension power generation device can adapt to vibration conditions of different amplitudes and frequencies, thereby improving the operating condition adaptability of the magnetically coupled suspension power generation device.

[0057] Reference Figure 1 As shown, in some embodiments, at least two limiting structures 120 are provided in the stator assembly 100. The at least two limiting structures 120 are respectively disposed at both ends of the axial direction of the stator assembly 100 to restrict the inner moving sub-assembly 300 from sliding out of the stator assembly 100 when the inner moving sub-assembly 300 and the outer moving sub-assembly 200 are decoupled and locked.

[0058] In specific implementation, under the overload decoupling condition of flexible overload protection, the inner moving sub-assembly 300 may slide out of the stator assembly 100 due to inertia, causing damage to the magnetic coupling suspension power generation device. To this end, limiting structures 120 are respectively set at both ends of the axial direction inside the stator assembly 100. The setting of the limiting structure 120 does not affect the normal axial movement of the inner moving sub-assembly 300, but only plays a limiting role when the inner moving sub-assembly 300 moves to the extreme positions at both ends of the axial direction of the stator assembly 100, so as to avoid damage to the components caused by rigid impact.

[0059] Reference Figure 1 As shown, in some embodiments, the limiting structure 120 includes a magnetic repulsion stop structure that coincides with the magnetic poles of the internal actuator assembly 300.

[0060] In this embodiment, a magnetic repulsion stop structure replaces the traditional rigid limit block to avoid rigid impact between the inner moving part 300 and the limit structure 120. At the same time, the same polarity magnetic repulsion is used to realize the automatic reset of the inner moving part 300, ensuring that after overload decoupling, the magnetic coupling suspension power generation device can quickly return to normal working state. That is, the magnetic potential well is used as a virtual spring to realize automatic reset, further improving the stability and service life of the inner magnetic coupling suspension power generation device.

[0061] Reference Figure 1 As shown, in some embodiments, the stator assembly 100 includes a housing 130, which encloses an inner cavity 131 for accommodating the inner mover assembly 300; and the housing 130 is a shell structure with a hollow cavity 132, induction coil 110 is disposed in the hollow cavity 132; the shell wall of the housing 130 is provided with a cooling exhaust hole 133 communicating with the hollow cavity 132 and the inner cavity 131, which is used to solve the heat dissipation problem of the magnetic coupling suspension power generation device when generating high power, avoid damage to the induction coil 110 due to overheating, and improve the working stability and service life of the magnetic coupling suspension power generation device.

[0062] Specifically, when the internal moving part 300 reciprocates at high speed along the axial direction of the stator part 100, it compresses the air in the inner cavity 131 of the stator part 100, forming a piston effect. This drives the airflow to circulate between the hollow cavity 132 and the inner cavity 131 through the cooling exhaust port 133. When the airflow passes through the induction coil 110 in the hollow cavity 132, it can quickly remove the heat generated by the induction coil 110, achieving forced air cooling of the induction coil 110. No additional cooling equipment is required, thus effectively simplifying the structure of the magnetic coupling suspension power generation device and reducing energy consumption.

[0063] Reference Figure 1 As shown, in some embodiments, the stator assembly 100 has a cylindrical structure for mounting on the outside of the shock absorber, thus eliminating the need to modify the structure and stroke of the vehicle's shock absorber, making installation convenient and highly adaptable. Simultaneously, the cylindrical structure ensures that the axis of the stator assembly 100 is aligned with the axis of the shock absorber, thereby guaranteeing the stability of the axial movement trajectory of the inner moving part assembly 300 and avoiding problems such as magnetic coupling failure and reduced power generation efficiency caused by installation deviations. This adapts to the suspension layout requirements of non-road mobile machinery such as excavators and mining trucks.

[0064] In summary, the magnetically coupled suspension power generation device of this embodiment can achieve multi-dimensional energy capture. That is, through the magnetic coupling rectification mechanism, it can convert the tilt, pitch and horizontal sway energy commonly seen in off-road vehicles into electrical energy, which significantly improves the overall efficiency of energy recovery.

[0065] Furthermore, flexible overload protection can be achieved by utilizing the slippage characteristics of magnetic coupling instead of mechanical rigid limiting. Under a large impact, the external moving component 200 and the internal moving component 300 instantly decouple, avoiding mechanical damage to achieve collision protection, while limiting the peak value of the generated voltage and protecting the downstream circuitry.

[0066] Furthermore, the entire magnetically coupled suspension power generation device has no mechanical contact transmission structure, eliminating the risk of friction, wear, and jamming, making it particularly suitable for harsh working conditions such as mines and muddy environments. Moreover, the entire device has a compact structure, with the stator assembly 100 mounted outside the shock absorber without altering the original axial length of the shock absorber, facilitating installation and layout.

[0067] Finally, refer to Figure 4 As shown, the working process of the magnetic coupling suspension power generation device in this embodiment is as follows: During vehicle driving and operation, road bumps and operating disturbances will generate multi-dimensional vehicle vibrations such as pitch, roll, and horizontal impact. When the vehicle vibration is a normal vibration, the vibration is transmitted to the suspension structure 500 through the frame and shock absorbers, thereby driving the outer moving sub-assembly 200 to vibrate in multiple dimensions relative to the stator assembly 100. The outer moving sub-assembly 200 and the inner moving sub-assembly 300 achieve magnetic coupling and locking through the same-pole magnetic repulsion force, and their wedge-shaped inclined surfaces 400 are mutually adapted. When the outer moving sub-assembly 200 vibrates in multiple dimensions, the wedge-shaped inclined surface 400 decomposes the radial magnetic repulsion force into an axial component force, driving the inner moving sub-assembly 300 to reciprocate along the axial direction of the stator assembly 100. The reciprocating motion of the inner moving sub-assembly 300 cuts the magnetic field lines of the induction coil 110 inside the stator assembly 100, thereby generating induced electrical energy, realizing the conversion of vibration mechanical energy into electrical energy, so as to recover the energy contained in the multi-dimensional mechanical vibration.

[0068] When a vehicle experiences severe vibrations and impacts such as violent bumps or deep craters, the instantaneous inertial force on the outer drive assembly 200 exceeds the threshold of the magnetic coupling force between the inner drive assembly 300 and the outer drive assembly 200. At this point, the outer drive assembly 200 slides relative to the inner drive assembly 300 along the circumferential direction of the stator assembly 100, thereby releasing the magnetic coupling lock between them. The excess impact energy is converted into heat dissipation through the hysteresis loss of the first and second permanent magnets and the induced eddy current loss within the stator assembly 100. Simultaneously, the limiting structure 120 prevents the inner drive assembly 300 from sliding out of the stator assembly 100, avoiding mechanical damage and the induced voltage peak from breaking down the downstream circuit, thus achieving flexible overload protection. After the impact, the magnetic coupling force relocks the inner drive assembly 300 and the outer drive assembly 200, and the magnetic coupling suspension power generation device resumes normal power generation.

[0069] Reference Figures 1 to 4 As shown, this embodiment also provides a vehicle, including a suspension and a magnetically coupled suspension power generation device disposed on the suspension.

[0070] The specific structure and implementation principle of the magnetic coupling suspension power generation device in this embodiment are the same as those of the magnetic coupling suspension power generation device provided in the above embodiments, and can bring the same or similar technical effects. They will not be described in detail here, but can be referred to the description of the above embodiments.

[0071] For example, the vehicle could be a car, a truck, an excavator, or a mining truck.

[0072] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0073] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A magnetically coupled suspension power generation device, characterized in that, include: A stator assembly for mounting on a vehicle frame or shock absorber, wherein the stator assembly has an induction coil; An external moving part is sleeved outside the stator assembly and flexibly connected to the vehicle frame or shock absorber. The external moving part can generate multi-dimensional vibrations relative to the stator assembly as the vehicle vibrates. The multi-dimensional vibrations include at least pitch vibration, roll vibration and horizontal impact vibration. An internal moving part assembly is disposed within the stator assembly and is capable of reciprocating along the axial direction of the stator assembly; The magnetic poles of the outer moving part and the inner moving part are aligned on the side closest to each other, and at least the side of the outer moving part that is close to the stator assembly forms a wedge-shaped slope. The inner moving part and the outer moving part are magnetically coupled and locked. The inner moving part can move along the axial direction of the stator assembly under the drive of the multidimensional vibration of the outer moving part to cut the induction coil and generate induced electrical energy. Furthermore, the external moving sub-assembly can slide relative to the internal moving sub-assembly to release the coupling lock when the force of multidimensional vibration is greater than the coupling magnetic force between the internal moving sub-assembly and the external moving sub-assembly.

2. The magnetically coupled suspension power generation device according to claim 1, characterized in that, The external actuator assembly includes an annular support extending circumferentially along the stator assembly and a plurality of first permanent magnets arranged sequentially circumferentially along the annular support, wherein the magnetization direction of each first permanent magnet is arranged radially along the stator assembly.

3. The magnetically coupled suspension power generation device according to claim 1, characterized in that, The internal moving part assembly includes a plurality of second permanent magnets arranged sequentially along the axial direction of the stator assembly, and the magnetization direction of each second permanent magnet is arranged along the radial direction of the stator assembly.

4. The magnetically coupled suspension power generation device according to claim 1, characterized in that, The magnetic coupling suspension power generation device further includes at least two suspension structures. The external moving part assembly is provided with at least one suspension structure between each end of the external moving part assembly and the frame or shock absorber along the axial direction of the stator assembly. One end of the suspension structure is connected to the external moving part assembly, and the other end of the suspension structure is used to connect to the frame or shock absorber.

5. The magnetically coupled suspension power generation device according to claim 4, characterized in that, The suspension structure includes springs or rubber.

6. The magnetically coupled suspension power generation device according to any one of claims 1 to 5, characterized in that, The stator assembly is provided with at least two limiting structures, which are respectively located at both ends of the axial direction of the stator assembly, so as to restrict the inner moving sub-assembly from sliding out of the stator assembly when the coupling lock between the inner moving sub-assembly and the outer moving sub-assembly is released.

7. The magnetically coupled suspension power generation device according to claim 6, characterized in that, The limiting structure includes a magnetic repulsion stop structure that coincides with the magnetic poles of the internal moving part assembly.

8. The magnetically coupled suspension power generation device according to any one of claims 1 to 5, characterized in that, The stator assembly includes a housing that encloses an inner cavity for accommodating the inner actuator assembly; the housing is a shell structure with a hollow cavity, and the induction coil is disposed within the hollow cavity; the shell wall of the housing is provided with cooling exhaust holes that communicate between the hollow cavity and the inner cavity.

9. The magnetically coupled suspension power generation device according to any one of claims 1 to 5, characterized in that, The stator assembly has a cylindrical structure and is used to be fitted over the shock absorber.

10. A vehicle, characterized in that, Includes a suspension and a magnetically coupled suspension power generation device as described in any one of claims 1 to 9, disposed on the suspension.

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