CN220964618U - Electromagnetic vibration energy collection device and portable equipment - Google Patents
Electromagnetic vibration energy collection device and portable equipment Download PDFInfo
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- CN220964618U CN220964618U CN202322637036.8U CN202322637036U CN220964618U CN 220964618 U CN220964618 U CN 220964618U CN 202322637036 U CN202322637036 U CN 202322637036U CN 220964618 U CN220964618 U CN 220964618U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 238000003306 harvesting Methods 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model relates to an electromagnetic vibration energy collecting device and portable equipment, which comprise an upper shell, a bottom plate and a vibration energy collecting unit, wherein the upper shell and the bottom plate are buckled to form an accommodating space, the vibration energy collecting unit is suspended in the accommodating space, the vibration energy collecting unit comprises a magnetic steel component and a spring component, and the magnetic steel component is suspended in the accommodating space through the spring component; the left side and the right side of the magnetic steel assembly are provided with first magnets, and the accommodating space is internally provided with second magnets which are mutually attracted with the first magnets; the bottom of the magnetic steel component is provided with a coil fixed on the bottom plate. The beneficial effects are as follows: according to the utility model, the magnet group and the spring assembly which are used for attracting each other are arranged on the suspended magnetic steel assembly, and vibration energy is amplified by utilizing the attraction force of the first magnet and the second magnet and the action of the spring assembly, so that the electric energy conversion efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of vibration energy collection, in particular to an electromagnetic vibration energy collection device and portable equipment.
Background
The existing vibration energy collecting device mainly comprises three types of piezoelectric type, electrostatic type and electromagnetic type. The electromagnetic vibration energy collecting device can solve the problem of energy self-supply of various miniature sensors and actuators in complex environments and under special working conditions. The method can provide sustainable green energy for the wireless sensing network, has important application prospects in the front-edge scientific fields of the Internet of things, portable/wearable equipment, implanted medical treatment and the like, and can solve the problems of limited service life, limited endurance time, environmental pollution and the like of the traditional battery.
Although the electromagnetic vibration energy collecting device has the advantages, the electromagnetic vibration energy collecting device in the prior art still has the defects of large vibration energy loss, low conversion power, complex structure, unfavorable industrial scale production and low popularization rate.
Disclosure of utility model
In order to overcome the defects of complex structure and low conversion power of an electromagnetic vibration energy collecting device in the prior art, the utility model provides the electromagnetic vibration energy collecting device and portable equipment, and the specific technical scheme is as follows:
The electromagnetic vibration energy collecting device comprises an upper shell, a bottom plate and a vibration energy collecting unit, wherein the upper shell and the bottom plate are buckled to form an accommodating space, the vibration energy collecting unit is suspended in the accommodating space, the vibration energy collecting unit comprises a magnetic steel assembly and a spring assembly, and the magnetic steel assembly is suspended in the accommodating space through the spring assembly; the left side and the right side of the magnetic steel assembly are provided with first magnets, and the accommodating space is internally provided with second magnets which are mutually attracted with the first magnets; the bottom of the magnetic steel component is provided with a coil fixed on the bottom plate.
Further, the magnetic steel component comprises a mass block, array magnetic steels positioned in the mass block, first magnets positioned on the left side and the right side of the mass block, and magnetic yokes embedded in the mass block and two ends of which are separated from the array magnetic steels and the first magnets.
Further, the magnetic yoke is in a shape of a' [; the array magnetic steel adopts a halbach array; the first magnet is bonded to a sidewall of the mass.
Further, the mass block is of a rotationally symmetrical rectangular block structure, a through rectangular through hole is formed in the middle of the mass block, and rectangular openings, rectangular convex columns and welding positions are formed in the left side and the right side of the mass block.
Further, the magnetic yoke is positioned in the rectangular through hole, and the left end and the right end are bonded with the inner wall of the mass block to form a containing cavity; the array magnetic steel is positioned in the accommodating cavity and is respectively bonded with the magnetic yoke and the mass block.
Further, the spring assembly includes a V-spring, a support post, and a second magnet; one end of the V-shaped spring is connected with the welding position of the mass block, and the other end of the V-shaped spring is connected with the support column; the support column is welded on the upper shell and connected with the V-shaped spring through a rivet; the second magnet is adhered to the inner side of the upper shell, positioned below the V-shaped spring and arranged opposite to the first magnet.
Further, the bottom plate is adhered with an FPC board, and coils are arranged on the FPC board.
Further, the magnetic steel component is of a rectangular structure, and one end of a compression spring and a first magnet are connected to the left side and the right side of the magnetic steel component; the bottom plate is provided with a protruding vertical plate, and the vertical plate is connected with the other end of the compression spring and is provided with a second magnet at a corresponding position of the first magnet.
Further, the first magnet is a circular magnet embedded in the side wall of the mass block, and the second magnet is a circular magnet embedded in the vertical plate.
The portable equipment can be worn on the surface of a human body, the electromagnetic vibration energy collecting device is arranged in the portable equipment, and the electromagnetic vibration energy collecting device can generate current along with the movement of the portable equipment.
The beneficial effects of the utility model are as follows: according to the utility model, the magnetic steel assembly is arranged on the suspension, and the magnet group and the spring assembly are used for attracting each other, so that the attraction force of the first magnet and the second magnet and the action of the spring assembly are used for amplifying vibration energy, and the electric energy conversion efficiency is improved; the components in the utility model can be produced and assembled industrially and rapidly, can realize the large-scale production of products, and has higher popularization rate.
Drawings
Wherein:
Fig. 1 is a schematic structural view of an electromagnetic vibration energy harvesting apparatus of the present utility model.
Fig. 2 is an exploded view of the structure of the first embodiment of the present utility model.
Fig. 3 is a schematic structural view of an upper case according to a first embodiment of the present utility model.
Fig. 4 is a schematic structural view of a vibration energy harvesting unit according to the first embodiment of the utility model.
Fig. 5 is a schematic structural view of a magnetic steel assembly according to a first embodiment of the present utility model.
Fig. 6 is a schematic structural view of a mass according to the first embodiment of the present utility model.
Fig. 7 is a schematic view of the structure of a spring assembly according to the first embodiment of the present utility model.
Fig. 8 is a schematic structural view of a base plate according to a first embodiment of the present utility model.
Fig. 9 is a schematic structural view of a second embodiment of the present utility model.
Wherein:
100-upper shell; 200-a bottom plate; 300—a vibration energy harvesting unit;
110-notch;
210-an FPC board; 220-coil; 230-vertical plate;
310-a magnetic steel component; 320-a spring assembly;
311-mass block; 312-array magnetic steel; 313-a first magnet; 314-yoke;
3111-rectangular through holes; 3112-rectangular opening; 3113-rectangular posts; 3114-welding position;
321-V-shaped springs; 322-support column; 323-a second magnet; 324-compression spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In a first embodiment, as shown in fig. 1 to 2, an electromagnetic vibration energy collecting device includes an upper shell 100, a bottom plate 200, and a vibration energy collecting unit 300, where the upper shell 100 and the bottom plate 200 are buckled to form a receiving space, and two ends of the vibration energy collecting unit 300 are connected to an inner wall of the upper shell 100 and suspended in the receiving space.
As shown in fig. 3, the upper case 100 is a rectangular case, including a top surface and four side surfaces, the bottom of which is provided with an opening, and one side surface of which is provided with a notch 110, the notch 110 being used for FPC board payout of the base plate 200.
The vibration energy collecting unit 300 mainly includes a magnetic steel assembly 310 and a spring assembly 320, wherein the spring assembly 320 is used for suspending the magnetic steel assembly 310 at two ends, so that the magnetic steel assembly 310 can correspondingly move along with external swing; the magnetic steel assembly 310 is used to generate a magnetic field.
The magnetic steel assembly 310 has a structure as shown in fig. 5, and comprises a mass block 311, array magnetic steel 312 positioned inside the mass block 311, first magnets 313 positioned on the side walls of the left and right sides of the mass block 311, and a magnetic yoke 314 embedded inside the mass block 311 and having two ends separating the array magnetic steel 312 and the first magnets 313. The magnetic yoke 314 is shaped like a "[" and is used for wrapping the array magnetic steel 312 and converging magnetic induction lines so as to form a stronger magnetic field at the bottom of the magnetic steel assembly 310. The array magnet steel 312 adopts halbach array, and generates stronger magnetic field by using fewer magnets. The first magnet 313 is bonded to the sidewall of the mass 311 to attract the second magnet, thereby amplifying the vibration energy.
As shown in fig. 6, the mass block 311 has a rotationally symmetrical rectangular block structure, a rectangular through hole 3111 is provided in the middle, and rectangular openings 3112 are provided on the left and right side walls. The magnetic yoke 314 is located in the rectangular through hole 3111, and both the left and right ends are bonded to the inner wall of the mass block 311 to form a receiving cavity for receiving the array magnetic steel 312. The array magnetic steel 312 is located in the accommodating cavity, and is respectively adhered to the magnetic yoke 314 and the inner wall of the mass block, and the bottom is opposite to the coil of the bottom plate 200. The outer sidewalls of the left and right sides of the mass 311 are further provided with rectangular bosses 3113 and welding sites 3114 of the spring assembly 320. The rectangular posts 3113 are adapted to cooperate with damping foam located on the upper housing 100 to prevent the mass 311 from being displaced too far to directly strike the upper housing 100. The weld 3114 is used to reserve the weld location of the mass 311 to the spring.
The spring assembly 320, as shown in fig. 7, includes a V-spring 321, a support post 322, and a second magnet 323. The V-spring 321 is connected at one end to the weld 3114 of the mass 311 and at the other end to the support column 322. The support column 322 is welded to the upper case 100 and is connected with the V-spring 321 by rivets. The second magnet 323 is adhered to the inner side of the upper case 100 below the V-shaped spring 321 and is disposed opposite to the first magnet 313. The spring assembly 320 mainly suspends the magnetic steel assembly 310 in the upper shell 100, when the vibration energy collecting device integrally swings with other products, the magnetic steel assembly 310 can move linearly along the direction of the spring 321, at this time, the V-shaped spring 321 on one side is compressed, the V-shaped spring 321 on the other side is stretched, and at the same time, magnetic attraction is generated between the first magnet 313 and the second magnet 323 at the compressed end; when the elastic force generated by the springs at the two ends is greater than the magnetic force, the moving speed of the magnetic steel assembly 310 is reduced, and the magnetic steel assembly moves reversely after being reduced to 0 until the magnetic steel assembly finally returns to the balanced state. During the movement of the magnetic steel assembly 310, the magnetic field generated by the array magnetic steel 312 and the coil fixed at the bottom generate relative movement, so that current is generated in the coil and can be transmitted to other components through PFC.
As shown in fig. 8, the chassis 200 has a PFC board 210 adhered to the chassis 200, and a coil 220 is provided on the fpc board 210. The coil 220 is located below the magnetic steel assembly 310, and when the magnetic steel assembly 310 moves, a corresponding current is generated inside the coil 220.
The vibration energy collecting device of the second embodiment is shown in fig. 1, and the upper case 100 is identical in structure to the first embodiment and is not shown in the drawings. In the second embodiment, as shown in fig. 9, the magnetic steel assembly 310 has a rectangular structure, one end of the compression spring 324 and the first magnet 313 are connected to the left and right sides, the bottom plate 200 is provided with a protruding riser 230, and the other end of the compression spring 324 and the second magnet 323 are located on the riser 230.
In the first embodiment, a V-shaped leaf spring is used, and in the second embodiment, a compression spring is used, so that transmission of vibration energy is more sensitive. In the first embodiment, the first magnet and the second magnet are rectangular blocks, the connection of the magnets is complicated, in the second embodiment, the first magnet and the second magnet are single round, the first magnet is located in the mass block, the second magnet is located in the vertical plate, and the connection of the magnet assemblies is relatively simple.
The working principle of the second embodiment is the same as that of the first embodiment, and the external device such as a smart watch and a smart bracelet swings to drive the mass block to move along the expansion direction of the spring, so that a magnetic field generated by the magnetic steel and the coil 220 fixed on the bottom plate 200 generate relative movement, and thus, current is generated in the coil 220 and is output through the FPC board.
A portable device is wearable on the surface of a human body, and an electromagnetic vibration energy collecting device is arranged in the portable device. During movement of the human body, the vibration energy harvesting device may generate an electrical current as the portable device moves.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The electromagnetic vibration energy collecting device comprises an upper shell, a bottom plate and a vibration energy collecting unit, wherein the upper shell and the bottom plate are buckled to form an accommodating space, and the vibration energy collecting unit is suspended in the accommodating space; the left side and the right side of the magnetic steel assembly are provided with first magnets, and the accommodating space is internally provided with second magnets which are mutually attracted with the first magnets; the bottom of the magnetic steel component is provided with a coil fixed on the bottom plate.
2. The electromagnetic vibration energy harvesting apparatus of claim 1, wherein the magnetic steel assembly comprises a mass, an array magnetic steel positioned inside the mass, first magnets positioned on the left and right sides of the mass, and yokes embedded inside the mass and having both ends separating the array magnetic steel and the first magnets.
3. The electromagnetic vibration energy harvesting apparatus of claim 2, wherein the yoke is "[" shaped; the array magnetic steel adopts a halbach array; the first magnet is bonded to a sidewall of the mass.
4. An electromagnetic vibration energy harvesting apparatus as defined in claim 3, wherein the mass block is of a rotationally symmetrical rectangular block-like structure, a rectangular through hole is provided in the middle, and rectangular openings, rectangular studs and welding sites are provided on the left and right sides.
5. The electromagnetic vibration energy harvesting apparatus of claim 4, wherein the yoke is positioned within the rectangular through-hole, and left and right ends are bonded to the inner wall of the mass to form a receiving cavity; the array magnetic steel is positioned in the accommodating cavity and is respectively bonded with the magnetic yoke and the mass block.
6. The electromagnetic vibration energy harvesting apparatus of claim 5, wherein the spring assembly comprises a V-spring, a support post, and a second magnet; one end of the V-shaped spring is connected with the welding position of the mass block, and the other end of the V-shaped spring is connected with the support column; the support column is welded on the upper shell and connected with the V-shaped spring through a rivet; the second magnet is adhered to the inner side of the upper shell, positioned below the V-shaped spring and arranged opposite to the first magnet.
7. The electromagnetic vibration energy harvesting apparatus of claim 6, wherein the base plate is bonded with an FPC board having a coil disposed thereon.
8. The electromagnetic vibration energy harvesting apparatus of claim 2, wherein the magnetic steel assembly has a rectangular structure, and the left and right sides are connected with one end of the compression spring and the first magnet; the bottom plate is provided with a protruding vertical plate, and the vertical plate is connected with the other end of the compression spring and is provided with a second magnet at a corresponding position of the first magnet.
9. The electromagnetic vibration energy harvesting apparatus of claim 8, wherein the first magnet is a circular magnet fitted to the side wall of the mass and the second magnet is a circular magnet fitted within the riser.
10. A portable device wearable on a surface of a human body, wherein an electromagnetic vibration energy harvesting apparatus according to any one of claims 1-9 is provided within the portable device, the electromagnetic vibration energy harvesting apparatus being operable to generate an electrical current as the portable device moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322637036.8U CN220964618U (en) | 2023-09-27 | 2023-09-27 | Electromagnetic vibration energy collection device and portable equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322637036.8U CN220964618U (en) | 2023-09-27 | 2023-09-27 | Electromagnetic vibration energy collection device and portable equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220964618U true CN220964618U (en) | 2024-05-14 |
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ID=90978380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322637036.8U Active CN220964618U (en) | 2023-09-27 | 2023-09-27 | Electromagnetic vibration energy collection device and portable equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220964618U (en) |
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2023
- 2023-09-27 CN CN202322637036.8U patent/CN220964618U/en active Active
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