CN116015099A - Electromagnetic vibration energy collector based on flexible guide rail - Google Patents

Abstract

The invention discloses an electromagnetic vibration energy collector based on a flexible guide rail, which comprises an upper winding bracket, an upper coil winding, a plurality of magnets, a lower coil winding, a lower winding bracket and a flexible guide rail, wherein the upper coil winding is arranged on the upper winding bracket; the spring component in the flexible guide rail is arranged on the fixing frame; the spring component comprises a plurality of spring groups and a magnet support, wherein the spring groups comprise a plurality of arc-shaped spring pieces, and the arc-shaped spring pieces are longitudinally arranged in parallel; the edge of the magnet support is fixedly connected with any one or a plurality of the arc-shaped spring pieces; the upper winding bracket and the lower winding bracket are arranged at two ends of the flexible guide rail; the invention has simple structure, convenient assembly and is suitable for a wide frequency range; the movable cushion block can be placed between the rigid cylinder and the spring, and the rigidity of the compact flexible guide rail can be changed only by changing the position of the movable cushion block, so that the movable cushion block can be applied to different applications.

Description

Electromagnetic vibration energy collector based on flexible guide rail

Technical Field

The patent relates to the technical field of self-generation, in particular to an electromagnetic vibration energy collector based on a flexible guide rail.

Background

In the past decades, with the rapid development of wireless sensor networks, the number of sensor nodes is exponentially increased, the requirements of people on the reliability and durability of power supply of the sensor nodes are increasingly improved, and the problems of environmental influence, limited endurance time, limited capacity and the like of traditional batteries are caused, so that many researchers turn the research view angle to the acquisition of energy from the surrounding environment where the sensor nodes are located, the sensor nodes realize self-supply of power, the service life of the whole wireless sensor network is greatly prolonged, and the maintenance cost of a system is obviously reduced.

The manner in which energy is harvested from the surrounding environment includes solar energy, thermal energy, vibrational energy, etc., which is more common in industry, the human body, and vehicles than other environmental energies. Vibration energy harvesting is mainly three ways: electromagnetic, electrostatic and piezoelectric. Compared with other two vibration energy source collection modes, the electromagnetic mode has the advantages of simple structure and higher output power. The electromagnetic collector completes electromagnetic induction power generation according to the magnetic flux change in the coil, so that the problems of how to eliminate friction between the permanent magnet and the inner wall of the structure under vibration, how to improve the energy collection efficiency, how to be suitable for different applications and the like become the technical difficulty of self power supply.

Disclosure of Invention

The invention provides an electromagnetic vibration energy collector design based on a compact flexible guide rail, which can eliminate collision and friction in the collector structure, improve the energy collection efficiency of the collector, and is applied to different scenes, and the collector can be assembled more conveniently.

In order to achieve the above purpose, the present invention adopts the following technical scheme: an electromagnetic vibration energy collector based on a flexible guide rail comprises an upper winding bracket 1, an upper coil winding 2, a plurality of magnets, a lower coil winding 8, a lower winding bracket 9 and a flexible guide rail 10;

the flexible guide rail 10 includes: a spring member 28 and a columnar mount on which the spring member 28 is mounted;

the spring component 28 comprises a plurality of spring groups 21 and a magnet bracket 24, wherein the spring groups are arranged in a central symmetrical structure, the spring groups comprise a plurality of arc-shaped spring pieces, and the arc-shaped spring pieces are longitudinally arranged in parallel;

the arc-shaped spring pieces are connected with each other through a non-rigid material, the magnet support 24 is arranged in the middle of an annular space surrounded by the arc-shaped spring pieces, and the edge of the magnet support 24 is fixedly connected with any one or a plurality of the arc-shaped spring pieces;

the upper winding bracket 1 and the lower winding bracket 9 are arranged at the upper end and the lower end of the flexible guide rail 10; the upper coil winding 2 and the lower coil winding 8 are respectively sleeved on the upper winding bracket 1 and the lower winding bracket 9, the upper coil winding 2 and the lower coil winding 8 are mutually communicated through wires, and electrodes for outputting induced electromotive force are respectively arranged on the upper coil winding 2 and the lower coil winding 8; a plurality of the magnets are arranged on the magnet support 24, the plurality of the magnets are all annular in shape, and the outer diameter sizes of the magnets are smaller than the inner diameters of the hollow parts of the upper winding support 1 and the lower winding support 9.

Preferably, each spring set 21 includes 4 arc-shaped spring pieces and a solid block 14, and the 4 arc-shaped spring pieces are respectively from top to bottom: arc cantilever one 12, arc cantilever Liang Er 13, arc cantilever three 15, arc cantilever four 16,

the solid block 14 is fixed between the arc cantilever Liang Er 13 and the arc cantilever beam three 15.

Preferably, the arc cantilever Liang Er and the arc cantilever beam III 15 are provided with protruding parts;

the magnet holder 24 includes three magnet T-shaped support parts 22 and one magnet support plate 23, the three magnet T-shaped support parts 22 being disposed outside the magnet support plate 23 in a center-symmetrical manner,

the upper end and the lower end of each magnet T-shaped supporting part 22 are respectively and fixedly connected with the protruding part of the arc-shaped cantilever beam II 13 and the protruding part of the arc-shaped cantilever beam III 15 of the spring group 21; the outside of the T-shaped support 22 corresponds to the solid block 14.

Preferably, the fixing frame comprises an upper annular rigid body 25, three arc plates 26 and a lower annular rigid body 27; a coil winding limiting block is arranged on the arc-shaped plate 26;

the three arc plates 26 are fixed between the upper annular rigid body 25 and the lower annular rigid body 27 in a central symmetry manner; the upper annular rigid body 25 is provided with 3 fulcrums in a central symmetry manner in a direction facing the lower annular rigid body 27, and the lower annular rigid body 27 is provided with 3 fulcrums in positions corresponding to the 3 fulcrums provided by the upper annular rigid body 25 in the direction facing the upper annular rigid body 25;

the spring members 28 are connected to three fulcrums of the upper annular rigid body 25 and the lower annular rigid body 27, respectively, by the upper surfaces of the annular cantilever beams one 12 and the lower surfaces of the annular cantilever beams two 16 in the three spring groups 21, each of which is vertically aligned with the solid block 14 in the spring group 21.

Preferably, each spring set 21 further includes an L-shaped decoupling block one 17, a plurality of decoupling pieces and an L-shaped decoupling block two 20; the L-shaped decoupling blocks I17, the decoupling sheets and the L-shaped decoupling blocks II 20 are made of elastic materials;

one end of the first arc-shaped cantilever beam 12 and one end of the fourth arc-shaped cantilever beam 16 are respectively fixed at the upper end and the lower end of the outer side surface of the long side of the first L-shaped decoupling block 17; one end of the arc cantilever beam two 13 and one end of the arc cantilever beam three 15 are respectively fixed on the outer side face of the long side of the L-shaped decoupling block one 17, a connection point of the arc cantilever Liang Er and the outer side face of the long side of the L-shaped decoupling block one 17 is located between the upper end of the long side of the L-shaped decoupling block one 17 and the middle point of the long side of the L-shaped decoupling block one 17, and a connection point of the T-shaped cantilever Liang San and the outer side face of the long side of the L-shaped decoupling block one 17 is located between the lower end of the long side of the L-shaped decoupling block one 17 and the middle point of the long side of the L-shaped decoupling block one 17;

one end of the arc-shaped cantilever beam II 13 and the other end of the arc-shaped cantilever beam III 15 are respectively fixed on the outer side face of the long side of the L-shaped decoupling block II 20 in the adjacent spring group; the L-shaped decoupling block I17 and the L-shaped decoupling block II 20 are fixedly connected through a plurality of decoupling sheets, the long sides of the L-shaped decoupling block I17 and the L-shaped decoupling block II 20 are parallel to each other, the upper end and the lower end of the decoupling sheet are respectively connected to the short sides of the L-shaped decoupling block I17 and the L-shaped decoupling block II 20, and the plurality of decoupling sheets are strip-shaped and parallel to the long sides of the L-shaped decoupling block II 20.

Preferably, the outer diameter of the upper coil winding 2 is not greater than the inner diameter of the upper annular rigid body 25, the outer diameter of the lower coil winding 8 is not greater than the inner diameter of the lower annular rigid body 27, and the upper coil winding 2 and the lower coil winding 8 are respectively arranged on the upper side and the lower side of the coil winding limiting block of the arc plate 26.

Preferably, the plurality of magnets include: a first permanent magnet 3, a second ferromagnetic gasket 4, a second permanent magnet 5, a third permanent magnet 6 and a fourth permanent magnet 7;

the lower end of the second permanent magnet 5 and the upper end of the third permanent magnet 6 are respectively positioned on the upper side and the lower side of the magnet support 24 and respectively contact with the upper surface and the lower surface of the magnet support plate 23, and the polarities of the lower end of the second permanent magnet 5 and the upper end of the third permanent magnet 6 are opposite, and are mutually attracted and fixed on the magnet support 24;

a ferromagnetic gasket 4 is arranged above the second permanent magnet 5, the ferromagnetic gasket 4 is fixed at the upper end of the second permanent magnet 5 through magnetic attraction, a first permanent magnet 3 is arranged above the ferromagnetic gasket 4, the first permanent magnet 3 is fixed at the upper end of the ferromagnetic gasket 4 through magnetic attraction, and the polarity of the lower end of the first permanent magnet 3 is the same as that of the upper end of the second permanent magnet 5;

the lower part of the third permanent magnet 6 is provided with a ferromagnetic gasket 4, the ferromagnetic gasket 4 is fixed at the lower end of the third permanent magnet 6 through magnetic attraction, the lower part of the ferromagnetic gasket 4 is provided with a fourth permanent magnet 7, the fourth permanent magnet 7 is fixed at the lower end of the ferromagnetic gasket 4 through magnetic attraction, and the polarity of the lower end of the third permanent magnet 6 is the same as that of the upper end of the fourth permanent magnet 7.

Preferably, the electromagnetic vibration energy source collector based on the flexible guide rail further comprises a plurality of movable cushion blocks 11, wherein the movable cushion blocks 11 are movably inserted between the upper annular rigid body 25 and the arc-shaped cantilever beam one 12 and between the lower annular rigid body 27 and the arc-shaped cantilever beam four 16.

Preferably, the thicknesses of the first permanent magnet 3 and the fourth permanent magnet 7 are the same, the thicknesses of the second permanent magnet 5 and the third permanent magnet 6 are the same, and the thicknesses of the first permanent magnet 3 and the fourth permanent magnet 7 are twice the thicknesses of the second permanent magnet 5 and the third permanent magnet 6.

Preferably, the upper winding bracket 1 and the lower winding bracket 9 are hollow cylindrical, and a through hole is arranged at the center of the magnet supporting plate 23 to reduce air damping during movement.

The invention uses Faraday electromagnetic law, when the device is excited by the outside, forced vibration is generated, the permanent magnet moves up and down relative to the coil, and the flux linkage in the coil also starts to change, so that the coil generates induced voltage. According to the principle, the larger the amplitude of the relative movement, the larger the induced voltage is. The compact flexible guide rail adopts the decoupling flexible mechanism, the low damping characteristic of the decoupling flexible guide rail enables the spring to drive the permanent magnet to move in a large amplitude, the single degree of freedom characteristic of the decoupling flexible guide rail also enables the permanent magnet not to collide or rub with the inner wall, and coil windings with extremely small distance from the permanent magnet can be placed in the structure to improve the magnetic induction intensity in the coil windings, so that the decoupling flexible guide rail can obtain larger induction voltage.

The invention has simple structure and convenient assembly, only needs compact flexible guide rail, coil winding, winding bracket, permanent magnet and movable cushion block, and is suitable for wide frequency range; the compact flexible guide rail can have small rigidity and can keep single-degree-of-freedom motion, and friction or collision between the permanent magnet and the inner wall is avoided; the movable cushion block can be placed between the rigid cylinder and the spring, and the rigidity of the compact flexible guide rail can be changed only by changing the position of the movable cushion block, so that the movable cushion block is applied to different applications; the distance between the placed coil and the permanent magnet is extremely small, and the magnetic field intensity of the coil can be improved, so that the efficiency of energy collection is improved.

Compared with other electromagnetic collectors, the invention can change the rigidity of the structure by changing the thickness of the compact flexible guide rail cantilever beam, and obtain the optimal output characteristic under different scenes. And secondly, the compact flexible guide rail and the coil winding can be manufactured according to 3D printing, so that the manufacturing cost of the device is reduced, and the mass production is easy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings is provided below, and some specific examples of the present invention will be described in detail below by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale, and that the terms "upper" and "lower" and "side-to-side," etc., are used to indicate relative positions between components and do not represent absolute positions thereof. In the accompanying drawings:

FIG. 1 is an exploded view of the present invention.

FIG. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a side view of a spring set.

Fig. 4 is an exploded view of the spring assembly.

Fig. 5 is a schematic view of a magnet holder.

Fig. 6 is a top view of an integral spring structure.

FIG. 7 is an exploded view of the integral spring structure

Fig. 8 is an exploded view of the holder.

Fig. 9 is a schematic view of a fixing frame.

Fig. 10 is an exploded view of the flexible guide rail.

Fig. 11 is a schematic view of a flexible guide rail.

Fig. 12 is a schematic view of a winding bracket.

In the figure, the upper winding bracket 1, the upper coil winding 3, the first permanent magnet 4, the ferromagnetic gasket 5, the second permanent magnet 6, the third permanent magnet 7, the fourth permanent magnet 8, the lower coil winding 9, the lower winding bracket 10, the flexible guide rail 11, the movable cushion block 12, the first arc-shaped cantilever beam 13, the second arc-shaped cantilever beam 14, the solid block 15, the third arc-shaped cantilever beam 16, the fourth arc-shaped cantilever beam 17, the first L-shaped decoupling block 18, the first decoupling sheet 19, the second decoupling sheet 20, the second L-shaped decoupling block 21, the spring group 22, the magnet T-shaped supporting part 23, the magnet supporting disc 24, the magnet bracket 25, the upper circular rigid body 26, the arc-shaped plate 27, the lower circular rigid body 28 and the integral spring.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

An electromagnetic vibration energy collector based on flexible guide rails is shown in fig. 1 and 2, and comprises an upper winding bracket 1, an upper coil winding 2, a first permanent magnet 3, a ferromagnetic gasket 4, a second permanent magnet 5, a third permanent magnet 6, a fourth permanent magnet 7, a lower coil winding 8, a lower winding bracket 9, a flexible guide rail 10 and a movable cushion block 11; the upper winding bracket 1 and the lower winding bracket 9 are arranged at two ends of the flexible guide rail 10; the upper coil winding 2 and the lower coil winding 8 are respectively wound in grooves of the upper winding bracket 1 and the lower winding bracket 9; the first permanent magnet 3, the ferromagnetic gasket 4, the second permanent magnet 5, the third permanent magnet 6 and the fourth permanent magnet 7 are arranged at two ends of the magnet support 24 of the flexible guide rail 10, and the movable cushion block 11 is arranged between the upper annular rigid body 25 and the first arc-shaped cantilever beam 12 and between the lower annular rigid body 27 and the fourth arc-shaped cantilever beam 16 and used for changing the rigidity of the flexible guide rail.

In this embodiment, as shown in fig. 3 and 4, the spring set 21 of the flexible guide rail 10 is composed of an arc cantilever beam one 12, an arc cantilever Liang Er, a solid block 14, an arc cantilever beam three 15, an arc cantilever beam four 16, an L-shaped decoupling block one 17, a decoupling sheet one 18, a decoupling sheet two 19 and an L-shaped decoupling block two 20; the first arc-shaped cantilever beam 12 and the fourth arc-shaped cantilever beam 16 are connected to two ends of the side face of the first L-shaped decoupling block 17; the arc cantilever Liang Er and the arc cantilever beam III 15 are connected in the middle of the side surface of the L-shaped decoupling block I17 and are symmetrically placed; the solid block 14 is placed between the arc-shaped cantilever Liang Er and the arc-shaped cantilever beam III 15, and the horizontal plane of the solid block 14 is aligned with the horizontal plane of the L-shaped decoupling block; the upper side of the first decoupling sheet 18 is connected with one end of the first L-shaped decoupling block 17, the lower side of the first decoupling sheet is connected with one end of the second L-shaped decoupling block 20, the upper side of the second decoupling sheet 19 is connected with one end of the first L-shaped decoupling block 17, the lower side of the second decoupling sheet is connected with one end of the second L-shaped decoupling block 20, and the first L-shaped decoupling block 17 and the second L-shaped decoupling block 20 are connected together through the placement of the two decoupling sheets.

As shown in fig. 5, the magnet holder 24 is composed of three magnet T-shaped support parts 22 and one magnet support plate 23, and the three magnet T-shaped support parts 22 are connected to the side surfaces of the magnet support plate 23 in a center-symmetrical manner to form one magnet holder 24.

As shown in fig. 6 and 7, the spring member 28 is composed of three spring groups 21 and one magnet holder 24. The three spring groups 21 are arranged in a central horizontal symmetry mode, the arc-shaped cantilevers Liang Er, the arc-shaped cantilever beams III 15, the arc-shaped cantilever beams I12 and the arc-shaped cantilever beams IV 16 are connected to the side surfaces of L-shaped decoupling blocks of the other spring group 21, the three spring groups 21 are connected, the rigidity in the non-vertical direction can be weakened through the structure connected with the decoupling blocks, the rigidity in the vertical direction is increased, and the influence caused by parasitic movement can be eliminated through the central horizontal symmetry mode; the three magnet T-shaped supporting parts 22 of the magnet bracket 24 are respectively placed between the arc-shaped cantilevers Liang Er and the arc-shaped cantilevers three 15 of the three spring groups 21, for connecting the spring groups 21 and the magnet bracket 24 to form the spring member 28.

As shown in fig. 8 and 9, the fixing frame is composed of an upper annular rigid body 25, three arc plates 26 and a lower annular rigid body 27. 9 through holes are distributed on the upper sides of the upper annular rigid body 25 and the lower annular rigid body 27 at intervals of 30 degrees; the three arc plates 26 are placed between the upper annular rigid body 25 and the lower annular rigid body 27 in a central symmetry mode and are used for supporting the upper annular rigid body 25 and the lower annular rigid body 27 at two ends.

As shown in fig. 10 and 11, the flexible guide rail 10 is composed of an upper annular rigid body 25, three arc plates 26, a lower annular rigid body 27, and a spring member 28. The middle parts of the arc-shaped cantilever beams one 12 and the arc-shaped cantilever beams four 16 of the three spring groups 21 in the spring component 28 are respectively connected to three fulcrums of the upper annular rigid body 25 and the lower annular rigid body 27, and the centers of the fulcrums are vertically aligned with the centers of the solid blocks 14 of the spring groups 21.

When external excitation occurs, the permanent magnet moves with it. Since the permanent magnets at the two ends are fixed at the two ends of the magnet support 24, the permanent magnets can drive the magnet support 24 to move, and can also drive the three spring sets 21 to move, the upper annular rigid body 25 and the lower annular rigid body 27 of the flexible guide rail 10 fix the arc cantilever beam I12 and the arc cantilever beam IV 16, and the movement amplitude of the mass block is ensured not to exceed the height of the pivot of the upper annular rigid body 25.

The first permanent magnet 3, the second permanent magnet 5, the ferromagnetic gasket 4, the third permanent magnet 6 and the fourth permanent magnet 7 are in a circular ring shape, which is beneficial to reducing air damping. The thickness of the first permanent magnet 3 is the same as that of the fourth permanent magnet 7, the thickness of the second permanent magnet 5 is the same as that of the third permanent magnet 6, the thickness of the first permanent magnet 3 is twice that of the second permanent magnet 5 and that of the third permanent magnet 6, the first permanent magnet 3, the ferromagnetic gasket 4 and the second permanent magnet 5 are combined into a permanent magnet group to be fixed on the upper side of the magnet support 24, the third permanent magnet 6, the ferromagnetic gasket 4 and the fourth permanent magnet 7 are combined into a permanent magnet group to be fixed on the lower side of the magnet support 24, a three-magnet structure can be formed, and the magnetic field symmetry is ensured. The homopolar surfaces of the first permanent magnet 3 and the second permanent magnet 5 are opposite, and the homopolar surfaces of the third permanent magnet 6 and the fourth permanent magnet 7 are opposite, so that the axial magnetic field intensity is reduced, and the longitudinal magnetic field intensity is increased; the ferromagnetic gaskets 4 are respectively arranged between the first permanent magnet 3 and the second permanent magnet 5, and between the third permanent magnet 6 and the fourth permanent magnet 7, so that repulsive force between the two can be eliminated, and attractive force between the two can be increased. The opposite polarity surfaces of the second permanent magnet 5 above the magnet bracket 24 and the third permanent magnet 6 below are opposite, so that the two permanent magnet groups are attracted to each other.

As shown in fig. 12, a groove is formed between the upper winding support 1 and the lower winding support 9, and is used for placing the upper coil winding 2 and the lower coil winding 8, the space between the upper winding support 1 and the lower winding support 9 and the permanent magnet group is 0.8mm, 9 through holes are distributed on the upper side at a 30-degree space, the aperture is the same as the through holes at two ends of the upper annular rigid body 25 and the lower annular rigid body 27, after the coil winding is respectively fixed on the upper winding support 1 and the lower winding support 9, the upper winding support 1 and the lower winding support 9 are placed at two ends of the upper annular rigid body 25 and the lower annular rigid body 27, the holes correspond to each other, and nuts are used for fixing.

The upper coil winding 2 and the lower coil winding 9 are respectively fixed in the grooves of the upper winding bracket 1 and the lower winding bracket 8, the central horizontal planes of the upper coil winding 2 and the lower coil winding 9 are aligned with the central horizontal plane of the ferromagnetic gasket 4, the coil can acquire the maximum magnetic flux change rate when the permanent magnet moves, copper wires of the upper coil winding 2 and the lower coil winding 9 are connected in series from gaps of the arc-shaped cantilever Liang Er and the arc-shaped cantilever beam three 15, and the copper wires are pulled out from the gaps to output voltage.

The specific implementation steps of the whole structure are as follows:

step 1: the flexible guide rail 10, the upper winding bracket 1 and the lower winding bracket 9 and the movable cushion block 11 are manufactured by adopting a 3D printing technology.

Step 2: the purchased enamel wire is wound into an upper coil winding 2 and a lower coil winding 9.

Step 3: the method comprises the steps of purchasing a first permanent magnet 3, a second permanent magnet 5, a ferromagnetic gasket 4, a third permanent magnet 6 and a fourth permanent magnet 7.

Step 4: and (5) assembling the system.

While the invention has been described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various changes and substitutions can be made herein without departing from the scope of the invention as defined by the appended claims.

Claims (10)

1. An electromagnetic vibration energy collector based on flexible guide rails is characterized in that,

the coil winding comprises an upper winding bracket (1), an upper coil winding (2), a plurality of magnets, a lower coil winding (8), a lower winding bracket (9) and a flexible guide rail (10);

the flexible guide rail (10) comprises: a spring member (28) and a columnar mount, the spring member (28) being mounted on the mount;

the spring component (28) comprises a plurality of spring groups (21) and magnet supports (24), the spring groups are arranged in a central symmetrical structure, the spring groups comprise a plurality of arc-shaped spring pieces, and the arc-shaped spring pieces are longitudinally arranged in parallel;

the arc-shaped spring pieces are connected with each other through a non-rigid material, the magnet support (24) is arranged in the middle of an annular space surrounded by the arc-shaped spring pieces, and the edge of the magnet support (24) is fixedly connected with any one or a plurality of the arc-shaped spring pieces;

the upper winding bracket (1) and the lower winding bracket (9) are arranged at the upper end and the lower end of the flexible guide rail (10); the upper coil winding (2) and the lower coil winding (8) are respectively sleeved on the upper winding bracket (1) and the lower winding bracket (9), the upper coil winding (2) and the lower coil winding (8) are mutually conducted through wires, and electrodes for outputting induced electromotive force are respectively arranged on the upper coil winding (2) and the lower coil winding (8); the magnets are arranged on the magnet support (24), the magnets are all annular in shape, and the outer diameter sizes of the magnets are smaller than the inner diameters of the hollow parts of the upper winding support (1) and the lower winding support (9).

2. An electromagnetic vibration energy harvester based on flexible rails as in claim 1 wherein,

each spring group (21) comprises 4 arc-shaped spring pieces and a solid block (14), wherein the 4 arc-shaped spring pieces are respectively from top to bottom: arc cantilever one (12), arc cantilever Liang Er (13), arc cantilever Liang San (15), arc cantilever four (16),

the solid block (14) is secured between the arcuate cantilever arms Liang Er (13) and the arcuate cantilever arms Liang San (15).

3. An electromagnetic vibration energy collector based on flexible guide rails as in claim 2, wherein the arc cantilever Liang Er (13) and arc cantilever Liang San (15) are provided with protrusions;

the magnet support (24) comprises three magnet T-shaped supporting parts (22) and a magnet supporting disc (23), the three magnet T-shaped supporting parts (22) are arranged on the outer side of the magnet supporting disc (23) in a central symmetry mode,

the upper end and the lower end of each magnet T-shaped supporting part (22) are fixedly connected with the protruding part of the arc-shaped cantilever Liang Er (13) and the protruding part of the arc-shaped cantilever Liang San (15) of the spring group (21) respectively; the outer side of the T-shaped supporting part (22) corresponds to the solid block (14).

4. A flexible rail based electromagnetic vibration energy harvester according to claim 3, wherein the mount comprises an upper annular rigid body (25), three arcuate plates (26) and a lower annular rigid body (27); a coil winding limiting block is arranged on the arc-shaped plate (26);

the three arc plates (26) are fixed between the upper annular rigid body (25) and the lower annular rigid body (27) in a central symmetry mode; the upper annular rigid body (25) is provided with 3 fulcrums in a central symmetry manner in the direction of the lower annular rigid body (27), and the lower annular rigid body (27) is provided with 3 fulcrums in the position corresponding to the 3 fulcrums arranged on the upper annular rigid body (25) in the direction of the upper annular rigid body (25);

the spring members (28) are connected to three fulcrums of the upper annular rigid body (25) and the lower annular rigid body (27) by the upper surfaces of the first arched cantilever beams (12) and the lower surfaces of the fourth arched cantilever beams (16) in the three spring groups (21), respectively, and each of the fulcrums is aligned with the solid block (14) in the spring group (21) in the vertical direction.

5. An electromagnetic vibration energy harvester based on flexible rails as in claim 4 wherein,

each spring group (21) further comprises an L-shaped decoupling block I (17), a plurality of decoupling pieces and an L-shaped decoupling block II (20); the L-shaped decoupling block I (17), the decoupling sheets and the L-shaped decoupling block II (20) are made of elastic materials;

one end of the first arc-shaped cantilever beam (12) and one end of the fourth arc-shaped cantilever beam (16) are respectively fixed at the upper end and the lower end of the outer side surface of the long side of the first L-shaped decoupling block (17); one end of the arc cantilever Liang Er (13) and one end of the arc cantilever Liang San (15) are respectively fixed on the outer side face of the long side of the first L-shaped decoupling block (17), a connection point of the arc cantilever Liang Er (13) and the outer side face of the long side of the first L-shaped decoupling block (17) is located between the upper end of the long side of the first L-shaped decoupling block (17) and the middle point of the long side of the first L-shaped decoupling block (17), and a connection point of the T-shaped cantilever Liang San and the outer side face of the long side of the first L-shaped decoupling block (17) is located between the lower end of the long side of the first L-shaped decoupling block (17) and the middle point of the long side of the first L-shaped decoupling block (17);

one end of the arc cantilever Liang Er (13) and the other end of the arc cantilever Liang San (15) are respectively fixed on the outer side surface of the long side of the L-shaped decoupling block II (20) in the adjacent spring group; the L-shaped decoupling block I (17) is fixedly connected with the L-shaped decoupling block II (20) through a plurality of decoupling sheets, the long sides of the L-shaped decoupling block I (17) and the L-shaped decoupling block II (20) are parallel to each other, the upper ends and the lower ends of the decoupling sheets are respectively connected with the short sides of the L-shaped decoupling block I (17) and the L-shaped decoupling block II (20), and the plurality of decoupling sheets are strip-shaped and are parallel to the long sides of the L-shaped decoupling block II (20).

6. An electromagnetic vibration energy harvester based on flexible rails as in claim 4 wherein,

the outer diameter of the upper coil winding (2) is not larger than the inner diameter of the upper annular rigid body (25), the outer diameter of the lower coil winding (8) is not larger than the inner diameter of the lower annular rigid body (27), and the upper coil winding (2) and the lower coil winding (8) are respectively arranged on the upper side and the lower side of a coil winding limiting block of the arc-shaped plate (26).

7. An electromagnetic vibration energy harvester based on flexible rails as in claim 1 wherein said plurality of magnets comprises: a first permanent magnet (3), two ferromagnetic gaskets (4), a second permanent magnet (5), a third permanent magnet (6) and a fourth permanent magnet (7);

the lower end of the second permanent magnet (5) and the upper end of the third permanent magnet (6) are respectively positioned at the upper side and the lower side of the magnet support (24) and respectively contact with the upper surface and the lower surface of the magnet support disc (23), and the polarities of the lower end of the second permanent magnet (5) and the upper end of the third permanent magnet (6) are opposite, so that the lower end and the upper end of the third permanent magnet are mutually attracted and fixed on the magnet support (24);

a ferromagnetic gasket (4) is arranged above the second permanent magnet (5), the ferromagnetic gasket (4) is fixed at the upper end of the second permanent magnet (5) through magnetic attraction, a first permanent magnet (3) is arranged above the ferromagnetic gasket (4), the first permanent magnet (3) is fixed at the upper end of the ferromagnetic gasket (4) through magnetic attraction, and the polarity of the lower end of the first permanent magnet (3) is the same as that of the upper end of the second permanent magnet (5);

the magnetic iron is characterized in that a ferromagnetic gasket (4) is arranged below the third permanent magnet (6), the ferromagnetic gasket (4) is fixed at the lower end of the third permanent magnet (6) through magnetic attraction, a fourth permanent magnet (7) is arranged below the ferromagnetic gasket (4), the fourth permanent magnet (7) is fixed at the lower end of the ferromagnetic gasket (4) through magnetic attraction, and the polarity of the lower end of the third permanent magnet (6) is identical with that of the upper end of the fourth permanent magnet (7).

8. A flexible rail based electromagnetic vibration energy harvester according to claim 3, further comprising a plurality of movable pads (11), said movable pads (11) being movably interposed between the upper annular rigid body (25) and the first arcuate cantilever (12) and between the lower annular rigid body (27) and the fourth arcuate cantilever (16).

9. An electromagnetic vibration energy collector based on a flexible guide rail as claimed in claim 7, wherein the first permanent magnet (3) and the fourth permanent magnet (7) have the same thickness, the second permanent magnet (5) and the third permanent magnet (6) have the same thickness, and the thickness of the first permanent magnet (3) and the fourth permanent magnet (7) is twice the thickness of the second permanent magnet (5) and the third permanent magnet (6).

10. An electromagnetic vibration energy collector based on flexible guide rails as in claim 7, wherein the upper winding support (1) and the lower winding support (9) are hollow cylindrical, and a through hole is arranged in the center of the magnet support plate (23).

Images