CN214674823U

CN214674823U - Electromagnetic type vibration power generation battery based on voice coil motor

Info

Publication number: CN214674823U
Application number: CN202120727058.1U
Authority: CN
Inventors: 代平均; 徐英杰; 尹振斌; 邰源政; 彭兵
Original assignee: Shenyang University of Technology
Current assignee: Shenyang University of Technology
Priority date: 2021-04-11
Filing date: 2021-04-11
Publication date: 2021-11-09
Anticipated expiration: 2031-04-11

Abstract

The invention discloses an electromagnetic vibration power generation battery based on a voice coil motor. The invention overcomes the problems of low magnetic flux density and low energy conversion efficiency caused by opening a magnetic circuit in the prior art. The power generation device comprises a shell, and a power generation assembly, a processing circuit and an auxiliary assembly which are arranged in the shell. The power generation assembly comprises a magnetic field generating device and an induction coil assembly, and most of a magnetic circuit of the magnetic field generating device is made of ferromagnetic materials, so that the magnetic voltage drop is small, and the defect that an air gap magnetic field is weak is overcome. The magnetic field generated by the magnetic field generating device is a radial magnetic field, and the coil moves in the radial magnetic field to cut the magnetic induction lines, so that alternating induced electromotive force is generated. The alternating induced electromotive force is processed and stored, and then the alternating induced electromotive force can be supplied to household low-power electric appliances such as a remote controller.

Description

Electromagnetic type vibration power generation battery based on voice coil motor

Technical Field

The utility model relates to an electromagnetic type power generation facility especially indicates to collect mechanical energy and turns into its electromagnetic type vibration electricity generation battery of electric energy.

Background

Vibration power generation is a technology for converting vibration mechanical energy into electric energy. Mainly classified into electromagnetic type, piezoelectric type and electrostatic type. The basic principle of the electromagnetic vibration power generation technology is a Faraday electromagnetic induction law.

The basic principle of the linear voice coil motor is as follows: when a conductor in a magnetic field passes a current, according to ampere's law, a force is generated perpendicular to the magnetic field lines, and the magnitude of the force depends on the length of the conductor in the magnetic field, the strength of the magnetic field and the current. A rotor in the voice coil motor is subjected to linear thrust, and directional movement is generated.

The motor has reversibility, namely when the rotor of the voice coil motor moves in a magnetic field under the action of external force, electric energy is output from the coil, so that the conversion from mechanical energy to electric energy is realized.

The conventional power generation device for absorbing vibration energy generally comprises a housing, and a power generation component arranged in the housing, wherein the power generation component comprises a guide cylinder, a magnet in the guide cylinder and a coil outside the guide cylinder. The principle of the method is that an induction coil is used for cutting a magnetic induction wire, induction current is generated in the induction coil, and then the induction current is processed through circuits such as rectification filtering and voltage stabilization and then stored in an energy storage device.

The magnetic circuit of the vibration generating device is open, the air magnetic resistance is large, and the magnetic flux density generated by the permanent magnet is small. Therefore, the energy conversion efficiency is low, the device is large in size and heavy.

The upper and lower parts of the guide cylinder generally adopt an elastic component such as a spring to buffer the impact of the magnet in the guide cylinder on the shell, however, the magnet is easy to directly impact the shell or other parts in the shell due to the failure of the elastic force of the elastic component. Meanwhile, magnetic materials generally appear at two ends of the power generation device in the using process, at the moment, the movable magnets are easily adsorbed to the magnetic materials at the two ends and cannot move freely, and power generation is invalid.

SUMMERY OF THE UTILITY MODEL

Utility model purpose:

in order to overcome current electromagnetic type vibration electricity generation battery magnetic flux density low, volume weight is big and energy conversion efficiency low grade is not enough, the utility model provides an electromagnetic type vibration electricity generation battery, this electricity generation battery energy conversion device have used voice coil motor innovatively, have improved magnetic flux density and energy conversion efficiency greatly.

The technical scheme is as follows:

an electromagnetic vibration power generation battery based on a voice coil motor comprises a shell (1), a power generation assembly and a processing circuit (7), wherein the power generation assembly and the processing circuit are arranged in the shell, an output terminal of the power generation assembly is electrically connected to an input terminal of the processing circuit, and an output terminal of the processing circuit is connected with an electrode (21); the power generation assembly comprises a magnetic field generation device and an induction coil assembly;

the magnetic field generating device comprises an iron core wall (22), an iron core bottom (23), an iron core column (24) and a tile-shaped permanent magnet (4), wherein one end of the iron core wall (22) is connected with the iron core bottom (23), the other end of the iron core wall (22) is provided with an opening, the iron core column (24) is arranged in the iron core wall (22) and connected with the iron core bottom (23), the tile-shaped permanent magnet (4) is adsorbed on the inner surface of the iron core wall (22), and an air gap (25) is formed between the tile-shaped permanent magnet (4) and the iron core column (24);

the induction coil assembly comprises a non-magnetic guide cylinder (5) and an induction coil (6); the middle of the non-magnetic guide cylinder is provided with a non-magnetic guide cylinder hole (33);

the induction coil (6) is sleeved outside the non-magnetic guide cylinder (5), and a core column (24) in the magnetic field generating device can extend into the non-magnetic guide cylinder hole (33) and reciprocate relative to the non-magnetic guide cylinder (5).

The magnetic induction lines emitted by the tile-shaped permanent magnet (4) sequentially pass through the air gap (25), the iron core column (24), the iron core bottom (23) and the iron core wall (22) and finally return to the tile-shaped permanent magnet, and finally, a radial magnetic field is formed in the air gap (25).

The non-magnetic guide cylinder is characterized in that a first boss (26) and a second boss (27) are arranged on the outer wall of the non-magnetic guide cylinder, the first boss (26) is located at the top of the non-magnetic guide cylinder (5), the second boss (27) is arranged at the position, not at the bottom, of the non-magnetic guide cylinder (5), and the induction coil (6) is arranged in the area between the first boss (26) and the second boss (27).

The winding mode of the induction coil is unidirectional winding, and when the unidirectional winding induction coil reciprocates in the radial magnetic field, the port of the induction coil outputs alternating induced electromotive force.

The power generation cell further includes a plurality of guide posts;

the magnetic field generating device is characterized in that the guide columns (2) are fixed on a guide column base (29), inner edges (2-1) of the guide columns point to the axis of the base, the magnetic field generating device and the induction coil assembly are arranged in the guide columns (2), and the inner edges are in direct contact with the magnetic field generating device in the using process.

And a gap (B) serving as a channel for air flow circulation is reserved between the guide columns.

The tile-shaped permanent magnets (4) are multiple, and the tile-shaped permanent magnets (4) are uniformly adsorbed on the inner surface of the iron core wall (22).

The processing circuit comprises a rectifying module, a voltage stabilization indicating module and an energy storage module, wherein the rectifying module converts alternating induced electromotive force into direct current, the voltage stabilization indicating module can display electric quantity and stabilize output voltage at 3.2V, and the energy storage module stores electric energy output by the rectifying module.

A fourth buffer magnet (17) and a fourth elastic component (16) are arranged at the bottom of the non-magnetic guide cylinder (5), the fourth buffer magnet (17) is arranged at the bottom of the non-magnetic guide cylinder (5), and the fourth elastic component (16) is arranged on the fourth buffer magnet (17);

the open end of the iron core wall (22) is sequentially provided with a third non-magnetic partition plate (13), a third buffer magnet (14) and a third elastic component (15) from inside to outside;

the outer wall of the bottom of the iron core bottom (23) is sequentially provided with a second non-magnetic partition plate (12), a second buffer magnet (11) and a second elastic component (10) from inside to outside.

The inner wall of the guide post base (29) is sequentially provided with a first buffer magnet (8) and a first elastic component (9) from inside to outside.

The advantages and effects are as follows:

for the elastomeric element who overcomes guide tube both ends among the prior art easily leads to unable cushioning effect to magnet because of elastic failure, the magnet of activity is adsorbed the magnetic material at electricity generation battery both ends easily simultaneously and the problem that can not the free activity, the embodiment of the utility model provides an electromagnetic type vibration electricity generation battery.

The utility model provides an electromagnetic type vibration electricity generation battery, including casing, electricity generation subassembly and processing circuit triplex. The power generation assembly is similar to a voice coil motor in principle and comprises a magnetic field generation device and an induction coil.

The magnetic field generating device comprises a rotor iron core (3) and tile-shaped permanent magnets, the tile-shaped permanent magnets are used for generating a radial magnetic field, and the rotor iron core (3) is used as a part of a magnetic circuit and is used for improving the air gap magnetic induction intensity. The induction coil is wound on the non-magnetic guide cylinder, wherein the non-magnetic guide cylinder plays two roles: supporting the induction coil and guiding the mover core to move. And 6 guide columns are arranged between the rotor iron core and the shell. The guide post cross section is fan-shaped, and wherein, the arc surface contacts with shells inner wall, and interior edge contacts with active cell iron core outer wall (the outer wall of iron core wall promptly), forms the motion slide of active cell, the aim at of design like this: the contact area between the rotor and the guide post is reduced, and further the dynamic friction force of the rotor core is reduced, so that the mechanical energy loss is reduced. The number of the guide columns is 6, and a large gap is reserved between each guide column and each guide column to form an airflow channel so that air can flow in the moving process of the rotor.

And a buffer magnet and an elastic component are arranged at the bottom of the guide post.

And the upper end and the lower end of the rotor iron core in the axis direction are sequentially provided with a non-magnetic clapboard, a buffer magnet and an elastic component.

The non-magnetic guide cylinder is fixed at the center of the upper insulating partition 18.

An annular fourth elastic component 16 and a fourth buffer magnet 17 are sequentially arranged around the non-magnetic guide cylinder from top to bottom and are fixed on the upper insulating partition plate 18.

The first buffer magnet 8 and the second buffer magnet 11 are opposite in polarity, and the third buffer magnet 14 and the fourth buffer magnet 17 are opposite in magnetic pole.

A cavity is formed between the upper insulating spacer 18 and the lower insulating spacer 19. Within the cavity, a processing circuit is provided (as shown in fig. 1, the upper cavity of the upper insulating partition 18 is used to house a power generation module or the like, and the lower cavity of the upper insulating partition 18 is used to house the processing circuit).

The processing circuit mainly comprises a rectifying module, a voltage stabilization indicating module and an energy storage module.

Preferably, the energy storage module uses a super capacitor.

Two electrodes 21 are arranged between the lower insulating partition 19 and the sealing sheet 20, and two leads of the processing circuit are connected with the two electrodes.

Preferably, the two electrodes are arranged on the same side of the vibration power generation battery and close to the induction coil and the processing circuit, so that the situation that the shell is grooved and wired is avoided, and the structure is simple.

The rectifying module converts alternating-current voltage into direct-current voltage and outputs the direct-current voltage to the energy storage module, the voltage stabilization indicating module stabilizes the electric energy in the energy storage module and simultaneously displays the electric quantity in the energy storage module, and then the energy storage module outputs voltage and current to the electrode.

The sealing sheet is a circular insulating plate with two circular holes, the sealing sheet is fixed on the shell, the electrodes protrude from the two circular holes, and in this way, the electrodes can be insulated from the electrodes and from the processing circuit (insulation here means that the electrodes are connected to the processing circuit only through two wires, and the electrodes are insulated from the processing circuit in space by the lower insulating partition plate 19).

Preferably, the rotor core (3) is a cylinder with a bottom and a pure iron cylinder connected to the bottom, the tile-shaped permanent magnet is adsorbed on the inner wall of the core wall (22), the magnetic induction lines emitted by the tile-shaped permanent magnet (4) sequentially pass through the air gap (25), the core column (24), the core bottom (23) and the core wall (22) and finally return to the tile-shaped permanent magnet, and finally, a radial magnetic field is formed in the air gap (25). According to the magnetic induction line characteristics of the magnetic field, most magnetic induction lines are closed along the path, only a small amount of leakage magnetic flux exists, and the air gap magnetic flux density is greatly improved.

When the magnetic field generating device reciprocates, more magnetic induction lines are cut by the induction coil, so that the efficiency of converting mechanical energy into electric energy is higher.

The first buffer magnet and the second buffer magnet, and the third buffer magnet and the fourth buffer magnet are opposite in polarity, when the moving speed of the rotor core is high, the buffer magnets and the elastic parts convert the kinetic energy of the rotor core into potential energy, and when the rotor is reversed, the potential energy is converted into the kinetic energy. And the energy loss is reduced while collision damage is avoided.

In addition, the guide columns are used, so that the motion friction of the rotor is reduced, an airflow channel is provided, and the motion resistance of the rotor is reduced.

Drawings

Fig. 1 is a schematic cross-sectional view of an electromagnetic vibration power generation battery according to an embodiment of the present invention;

fig. 2 is a partially cut-away schematic view of a mover provided in an embodiment of the present invention;

FIG. 3 is a schematic view of a radial magnetic field;

fig. 4 is a schematic view of an induction coil and guide cylinder assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of a guide post provided in an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of the guide post base;

fig. 7 is an exploded view of a buffer magnet according to an embodiment of the present invention;

FIG. 8 is a circuit schematic of a processing circuit;

FIG. 9 is a magnetic induction intensity curve of a rotor air gap magnetic field;

fig. 10 is a graph of processing circuit output voltage waveforms.

Wherein: 1. a housing; 2. a guide post; 3. a mover core; 4. a tile-shaped permanent magnet;

5. a non-magnetic guide cylinder; 6. An induction coil; 7. A processing circuit;

8. a first buffer magnet; 9. A first elastic member;

10. a second elastic member; 11. A second buffer magnet; 12. A second non-magnetic separator;

13. a third non-magnetic separator; 14. A third buffer magnet; 15. A third elastic member;

16. a fourth elastic member; 17. A fourth buffer magnet;

18. an upper insulating spacer; 19. a lower insulating spacer; 20. a sealing sheet; 21. an electrode;

22. a core wall; 23. a core bottom; 24. a core limb; 25. an air gap;

26. a first boss; 27. a second boss; 29. a guide post base;

30. a groove; 30-1, a big groove; 30-2, a small groove;

31. a first buffer magnet (or a third buffer magnet); 32. a second buffer magnet (or a fourth buffer magnet);

33. a non-magnetic guide cylinder hole D and an electric energy generation area; E. an electric energy processing area; F. and an electrode region.

Detailed Description

An electromagnetic vibration power generation battery based on a voice coil motor comprises a shell (1), and a power generation assembly and a processing circuit (7) which are arranged in the shell (the power generation assembly and the processing circuit (7) are both arranged in the shell). The output terminal of the induction coil (6) in the power generation assembly is electrically connected to the input terminal of a processing circuit (the connection mode of the processing circuit is conventional; the voltage source on the left side in fig. 8 represents the whole power generation assembly, and the circuit on the right side of the voltage source represents the processing circuit), and the output terminal of the processing circuit is connected with an electrode (21) to supply power to an external circuit through the electrode; the power generation assembly comprises a magnetic field generation device and an induction coil assembly; the two terminals of the induction coil are connected to the input terminals of the processing circuit.

The magnetic field generating device comprises an iron core wall (22), an iron core bottom (23), an iron core column (24) and a tile-shaped permanent magnet (4) (the tile-shaped permanent magnet is similar to a tile in shape as shown in figure 2, namely, a structure with an arc-shaped section which can be adapted and attached to the inner wall of the cylindrical iron core wall (22), one end of the iron core wall (22) is connected with the iron core bottom (23), the other end of the iron core wall (22) is provided with an opening, the iron core column (24) is arranged in the iron core wall (22) and connected with the iron core bottom (23), the tile-shaped permanent magnet (4) is adsorbed on the inner surface of the iron core wall (22), and an air gap (25) is formed between the tile-shaped permanent magnet (4) and the iron core column (24); (the iron core wall, the iron core bottom and the iron core column form a rotor iron core, the rotor iron core and tile-shaped permanent magnets (4 parts in total) form a magnetic field generating device)

The induction coil assembly comprises a non-magnetic guide cylinder (5) and an induction coil (6); as shown in fig. 4, a non-magnetic guide cylinder hole (33) is formed in the middle of the non-magnetic guide cylinder, and the non-magnetic guide cylinder hole (33) penetrates through the non-magnetic guide cylinder (5) from top to bottom along the axis of the non-magnetic guide cylinder and is used for restricting the movement direction of the magnetic field generating device.

The induction coil (6) is sleeved outside the non-magnetic guide cylinder (5), a core column (24) in the magnetic field generating device can extend into the non-magnetic guide cylinder hole (33) and does reciprocating motion (namely extends into and moves out of the non-magnetic guide cylinder hole (33)) relative to the non-magnetic guide cylinder (5) (when the core column (24) does the motion of extending into the non-magnetic guide cylinder hole (33), the tile-shaped permanent magnet (4) is positioned outside the induction coil (6), and in addition, in the using process, the core column extends into the non-magnetic guide cylinder hole (33) from top to bottom, as shown in figure 1).

The magnetic induction lines emitted by the tile-shaped permanent magnet (4) sequentially pass through the air gap (25), the core column (24), the core bottom (23) and the core wall (22) and finally return to the tile-shaped permanent magnet, and finally a radial magnetic field is formed in the air gap (25) (as shown by a dotted line with an arrow in fig. 3).

The non-magnetic guide cylinder is characterized in that a first boss (26) and a second boss (27) are arranged on the outer wall of the non-magnetic guide cylinder, the first boss (26) is located at the top of the non-magnetic guide cylinder (5), the second boss (27) is arranged at the non-bottom position of the non-magnetic guide cylinder (5) (the distance from the second boss to the top of the non-magnetic guide cylinder is three quarters of the height of the non-magnetic guide cylinder), and the induction coil (6) is arranged in the area between the first boss (26) and the second boss (27).

The winding mode of the induction coil is unidirectional winding, and when the unidirectional winding induction coil reciprocates in the radial magnetic field (relative motion, the rotor core moves relative to the induction coil, and can also be regarded as reciprocating motion of the induction coil in the radial magnetic field), the port of the induction coil outputs alternating induced electromotive force. (direct connection to the circuit in FIG. 8. the magnetic field generating means and the coil correspond to the voltage source on the left side of FIG. 8, and function to generate induced electromotive force)

The power generation cell further includes a plurality of guide posts;

a plurality of (for example, six) guide posts (2) in the auxiliary assembly are fixed on a guide post base (29), the inner edge (2-1) of each guide post points to the axis of the base (the outer wall of each guide post is in a shape matched with the inner wall of the shell (1), the section of each guide post is in a fan shape, the arc surface of each guide post is in contact with the inner wall of the shell), the magnetic field generating device and the induction coil assembly are arranged in the guide posts (2) (as shown in fig. 1, the iron core bottom 23 and the guide post base (29) are arranged on the same side, namely, the opening of the iron core wall is in the same direction as the opening of the guide posts), and in the using process, the inner edge is in direct contact with the magnetic field generating device. (aiming at clamping the rotor iron core, so that the rotor iron core can only move along the axial direction, but in order to make the rotor iron core move smoothly, a gap of 0.2mm is reserved between the iron core and the inner edge (2-1) of the guide post. actually, the rotor iron core can only contact with part of the inner edge (2-1) of the guide post in a certain movement process.)

A larger gap (B) is reserved between the guide post and the guide post as an airflow circulation channel (the size of the gap depends on the size of the guide post), and the gap (B) is used as a channel through which airflow circulates when the magnetic field generating device moves. (the action of the guide posts is 1. the action of the guide posts is the same as that of the nonmagnetic guide cylinder holes 33, so that the rotor iron core can only move along the axial direction (the radial swing is reduced), 2. the inner edges (2-1) of the guide posts are in line contact with the rotor iron core, so that the stress area can be reduced, and the friction force can be reduced (if no guide post is arranged, the rotor iron core is directly contacted with the inner surface of the shell, the friction loss is large), and 3. a large gap can be formed among six guide posts, so that when the rotor moves, air flow can flow from one side to the other side in the gap, and the movement resistance of the rotor is further reduced.)

The tile-shaped permanent magnets (4) are multiple, and the tile-shaped permanent magnets (4) are uniformly adsorbed on the inner surface of the iron core wall (22). (so-called uniform, namely the connecting line between the central line of the tile-shaped permanent magnet (4) and the axis of the core column forms a permanent magnet connecting line, the included angles between the adjacent permanent magnet connecting lines are equal, and the tile-shaped permanent magnet (4) can be 3 pieces)

The processing circuit comprises a rectifying module, a voltage stabilization indicating module and an energy storage module, wherein the rectifying module changes alternating induced electromotive force into direct current, the voltage stabilization indicating module can display electric quantity and stabilize output voltage at 3.2V, and the energy storage module stores electric energy output by the rectifying module (as shown in fig. 8, diodes D1, D2, D3 and D4 form the rectifying module, a light emitting diode LED1 and an LED2 form the voltage stabilization indicating module, a 10mF super capacitor C2 is the energy storage module, and a small capacitor C1 plays a role in filtering).

the open end of the iron core wall (22) is sequentially provided with a third non-magnetic partition plate (13), a third buffer magnet (14) and a third elastic component (15) from inside to outside (namely from top to bottom as shown in figure 1);

the outer wall of the bottom of the iron core bottom (23) is provided with a second non-magnetic partition plate (12), a second buffer magnet (11) and a second elastic component (10) from inside to outside (from bottom to top as shown in figure 1) (i.e. arranged in the manner shown in figure 1).

The inner wall of the guide post base (29) is provided with a first buffer magnet (8) and a first elastic component (9) from inside to outside (i.e. from top to bottom as shown in fig. 1) (i.e. the first elastic component (9) corresponds to the second elastic component (10) as shown in fig. 1).

In order to clearly understand the technical problems, technical solutions and advantages solved by the present invention, the present invention will be explained by combining the design scheme of the present invention with the drawings of the specification, so that the present invention can be reproduced by those skilled in the art according to the contents.

The utility model discloses a power generation subassembly, processing circuit 7, casing 1 and other auxiliary assembly, four bibliographic categories divide altogether, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 8.

As shown in fig. 1, the casing 1, the upper insulating spacer 18, the lower insulating spacer 19 and the sealing sheet 20 divide the cross section of the entire casing 1 into three regions: an electric energy generating area D, an electric energy processing area E and an electrode area F.

The power generation assembly is located in the electric energy generation area and comprises a magnetic field generation device and an induction coil assembly, which are respectively shown in fig. 2 and fig. 4.

As shown in fig. 2, the magnetic field generating device includes a mover core 3 and a tile-shaped permanent magnet 4.

As shown in fig. 2, the mover core 3 includes a core wall 22, a core bottom 23 and a core column 24, and as can be seen from fig. 2, the mover core 3 is made of a single cylinder of pure electrical iron by forming an annular groove from top to bottom, but taking care not to open the annular groove so as to leave the core bottom 23.

Preferably, the electrical pure iron model for manufacturing the mover core 3 is DT4C model with the best magnetic conductivity.

Preferably, the permanent magnet 4 is three tile-shaped neodymium iron boron permanent magnets which are the same, and in addition, a radiation magnetic ring can be selected.

The tile-shaped permanent magnet 4 is uniformly adsorbed on the inner surface of the iron core wall 22.

As shown in fig. 2 and 3, the magnetic induction lines emitted by the tile-shaped permanent magnet 4 pass through the air gap 25, the core leg 24, the core bottom 23 and the core wall 22 in sequence, finally return to the permanent magnet and close.

In summary, the magnetic field generating means generates a radial magnetic field in the air gap 25, as shown in fig. 3.

As shown in fig. 4, the induction coil assembly includes two parts, a non-magnetic guide cylinder 5 and an induction coil 6.

The non-magnetic guide cylinder 5 is a cylinder, and the guide cylinder can be different in thickness from top to bottom, and is sequentially provided with a first boss 26 and a second boss 27 from top to bottom, as shown in fig. 4.

The area between the first and

second bosses

26, 27 is recessed compared to the height of the bosses. The induction coil 6 is wound around this area.

The winding principle of the induction coil 6 is as follows: and (4) winding in the same direction.

The first boss 26 and the second boss 27 function to: the induction coil is prevented from sliding along the axis and even falling off.

After the induction coil 6 is wound, the surface of the coil needs to be wrapped by epoxy resin, and the induction coil has the following functions: and (4) fastening to prevent falling off after loosening.

The processing circuit 7 is located in the power processing area E as shown in fig. 1.

The processing circuit 7 comprises a rectifying module, a voltage stabilization indicating module and an energy storage module, as shown in fig. 8.

The rectifying module is formed by connecting four diodes D1, D2, D3 and D4, wherein D1 and D2 are connected in series, D3 and D4 are connected in series, and then the series connection results are connected in parallel, as shown in FIG. 8. The function is as follows: rectification is realized, and the alternating electromotive force is converted into direct current.

Preferably, the energy storage module is a super capacitor C2, and the super capacitor has: high power density, short charging and discharging time, long cycle life, wide working temperature range, reversible energy storage process, repeated charging and discharging of the super capacitor for hundreds of thousands of times and the like.

The voltage stabilization indicating module is formed by connecting two Light Emitting Diodes (LEDs) 1 and an LED2 in series in the same direction, anodes and cathodes of the two series light emitting diodes are respectively connected with an anode and a cathode of a super capacitor C2, and the principle of the voltage stabilization indicating module is as follows: the LED has the characteristic of one-way conduction, and the tube voltage drop is about 1.6V, so that the voltage drop of the two LED tubes connected in series can reach 3.2V. When the voltage of the energy storage module is higher than 3.2V, the light emitting diode is conducted, emits light, consumes energy and simultaneously indicates that the charging of the energy storage module is completed, in the process, the voltage at two ends of the energy storage module is rapidly reduced, when the voltage at two ends of the energy storage module is reduced to 3.2V, the light emitting diode is cut off, the voltage at two ends of the energy storage module is stabilized at 3.2V, and the working principle of the voltage stabilization indicating module is described above.

The small capacitor C1 acts as a filter.

Finally, the rectifying module, the filter capacitor, the voltage stabilization indicating module and the energy storage module are connected in parallel (namely, a D1 cathode, a D3 cathode, a C1 anode, an LED1 anode and a C2 anode are connected to the same node, and a D2 anode, a D4 anode, a C1 cathode, an LED2 cathode and a C2 cathode are connected to the same node), so that the processing circuit is formed. The two terminals of the induction coil in the power generation assembly are connected to the anodes of D1 and D3, respectively.

The electrode 21 is positioned between the lower insulating partition plate 19 and the sealing sheet 20, the electrode 21 protrudes outwards through two holes in the sealing sheet, and the electrode has the following functions: is connected with the external circuit and supplies power to the external circuit.

As shown in fig. 5, six guide posts are taken as an example, and of course, other numbers may be used, which are selected according to needs, six guide posts 2 are connected to the guide post base 29, and six guide posts 2 are uniformly distributed along the circumferential direction of the guide post base 29 (the uniform distribution is that, as shown in fig. 5, the inner edge 2-1 is connected to the axis of the guide post base 29 to form a vertical surface, and the included angles between adjacent vertical surfaces are equal).

As shown in fig. 5, the cross section of the guide post 2 is fan-shaped, a fan-shaped arc surface is fitted with the inner wall of the housing, an inner edge 2-1 of the guide post 2 points to the axis of the guide post base 29 and is parallel to the axis of the guide post base 29, and the arc surface faces back to the center of the circle.

The guide post base 29 mainly serves for the connection.

As shown in fig. 5 and 6, the guide post base 29 is provided with two circular grooves 30, namely a large groove 30-1 and a small groove 30-2; the two grooves 30 are concentric with the guide post base 29.

For the grooves 30, the small groove 30-2 is used for placing the first buffer magnet 8, and the large groove 30-1 is used for placing the first elastic member 9, and the connection mode is adhesion.

As shown in fig. 1, a second non-magnetic spacer 12, a second buffer magnet 11, and a second elastic member 10 are sequentially disposed on the upper portion of the mover core 3 from bottom to top, and are all in the form of circular clips, and the connection manner is adhesion.

As shown in the exploded view of the buffer magnet of fig. 7, reference numeral 31 is a first buffer magnet (or a third buffer magnet), generally indicated by reference numeral 31; 32 is a second buffer magnet (or fourth buffer magnet), generally indicated by the reference numeral 32; the same polarity of the first buffer magnet 8 and the second buffer magnet 11 is opposite, and the functions are as follows: the kinetic energy of the rotor iron core movement is converted into potential energy and then converted into kinetic energy in the process of rotor iron core reverse movement, and collision loss is reduced.

As shown in fig. 1, the first elastic component 9 and the second elastic component 10 function similar to the buffer magnet, and when the moving speed of the rotor core is high, the kinetic energy of the rotor core is converted into elastic potential energy, and according to the impulse equation, the collision strength can be effectively avoided, and the mechanical damage can be avoided.

The second nonmagnetic spacer 12 functions to: the second buffer magnet 11 is separated from the rotor core 3 by a certain distance, so that excessive magnetic induction lines emitted by the second buffer magnet 11 are prevented from being closed by the rotor core 3, and sufficient repulsion between the second buffer magnet 11 and the first buffer magnet 8 is ensured.

Similar to the above principle, as shown in fig. 1, a third non-magnetic spacer 13, a third buffer magnet 14, and a third elastic member 15 are disposed from top to bottom on a lower portion of the mover core 3, and a fourth elastic member 16 and a fourth buffer magnet 17 are disposed from top to bottom above the upper insulating spacer 18.

As shown in fig. 1, when the mover core 3 moves up and down, the guide posts 2 restrain the mover core 3 from the outside.

As shown in fig. 1, 2 and 4, when the mover core 3 moves up and down, the core leg 24 moves in the non-magnetic guide cylinder hole 33, where the mover core 3 is constrained again. That is, the diameter of the core leg 24 is preferably such that it can be inserted into the nonmagnetic guide cylinder hole 33 and can reciprocate.

As shown in fig. 5, the contact form of the guide post 2 and the mover core 3 is line contact, so that the contact area is greatly reduced, and the friction loss is reduced.

As shown in fig. 5, the guide posts 2 are spaced apart from each other by a large gap, thus providing a passage for an air flow generated when the mover core 3 moves.

The induction coil 6 wound in the same direction reciprocates in a radial magnetic field, and alternating induced electromotive force is generated at two ends of the induction coil 6, which is the generation principle of electric energy.

As shown in fig. 8, an output port of the alternating induced electromotive force is connected to an input port of the processing circuit 7, and a stable direct current is obtained at the output port of the processing circuit 7.

The output port of the processing circuit 7 is connected to the energy storage module, and finally, the electric energy is stored in the energy storage module super capacitor C2.

The shell 1, the upper insulating partition 18, the lower insulating partition 19 and the sealing sheet 20 are connected in an adhesion mode.

In the using process, as shown in fig. 1, firstly, the tile-shaped permanent magnet 4 in the magnetic field generating device generates a radial magnetic field in the air gap 25, the power generation battery is shaken by external force to make the magnetic field generating device reciprocate in the power generation assembly cavity, at this time, the magnetic field generating device is taken as a reference object, which can also be regarded as that an induction coil reciprocates in the air gap 25, alternating induced electromotive force is generated in the induction coil according to the faraday's law of electromagnetic induction, the output terminal of the induction coil is electrically connected to the input terminal of the processing circuit, and the processing circuit has the functions of: the alternating electromotive force is converted into a direct current voltage, and at the same time, the energy storage module is charged, and the output terminal of the processing circuit (i.e., the output of the energy storage module) is connected to the electrode to supply power to the external circuit, as shown in fig. 8.

In conclusion, the vibration power generation battery based on the voice coil motor greatly improves the magnetic flux density of the air gap magnetic field by improving the magnetic field generating device, so that the utilization efficiency of mechanical energy is improved. The arrangement of the buffer magnet and the elastic component reduces the energy loss to a certain extent, and finally, the volume and the weight of the vibration power generation battery are reduced.

Claims

1. An electromagnetic vibration power generation battery based on a voice coil motor comprises a shell (1), a power generation assembly and a processing circuit (7), wherein the power generation assembly and the processing circuit are arranged in the shell, an output terminal of the power generation assembly is electrically connected to an input terminal of the processing circuit, and an output terminal of the processing circuit is connected with an electrode (21); the method is characterized in that: the power generation assembly comprises a magnetic field generation device and an induction coil assembly;

2. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 1, characterized in that: the magnetic induction lines emitted by the tile-shaped permanent magnet (4) sequentially pass through the air gap (25), the iron core column (24), the iron core bottom (23) and the iron core wall (22) and finally return to the tile-shaped permanent magnet, and finally, a radial magnetic field is formed in the air gap (25).

3. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 1, characterized in that:

4. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 2, characterized in that: the winding mode of the induction coil is unidirectional winding, and when the unidirectional winding induction coil reciprocates in the radial magnetic field, the port of the induction coil outputs alternating induced electromotive force.

5. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 2, characterized in that: the power generation cell further includes a plurality of guide posts;

the magnetic field generating device and the induction coil assembly are arranged in the guide columns (2), and in the using process, the inner edges are in direct contact with the magnetic field generating device or leave sliding gaps.

6. The electromagnetic vibration power generation battery based on a voice coil motor according to claim 5, characterized in that: and a gap (B) serving as an airflow circulation channel is reserved between the guide post and the guide post.

7. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 1, characterized in that: the tile-shaped permanent magnets (4) are multiple, and the tile-shaped permanent magnets (4) are uniformly adsorbed on the inner surface of the iron core wall (22).

8. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 1, characterized in that:

9. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 1, characterized in that: a fourth buffer magnet (17) and a fourth elastic component (16) are arranged at the bottom of the non-magnetic guide cylinder (5), the fourth buffer magnet (17) is arranged at the bottom of the non-magnetic guide cylinder (5), and the fourth elastic component (16) is arranged on the fourth buffer magnet (17);

10. The electromagnetic vibration power generation cell based on a voice coil motor according to claim 1, characterized in that: the inner wall of the guide post base (29) is sequentially provided with a first buffer magnet (8) and a first elastic component (9) from inside to outside.