CN112177871A - Power generation device installed in deceleration strip - Google Patents
Power generation device installed in deceleration strip Download PDFInfo
- Publication number
- CN112177871A CN112177871A CN202011048371.9A CN202011048371A CN112177871A CN 112177871 A CN112177871 A CN 112177871A CN 202011048371 A CN202011048371 A CN 202011048371A CN 112177871 A CN112177871 A CN 112177871A
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- Prior art keywords
- base
- piezoelectric
- power generation
- permanent magnet
- deceleration strip
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- 238000010248 power generation Methods 0.000 title claims abstract description 34
- 230000005284 excitation Effects 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000004907 flux Effects 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 5
- 238000003306 harvesting Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
Abstract
The invention discloses a power generation device installed in a deceleration strip, which aims to solve the problems of low energy collection and utilization in the current environmental road and the like. The invention comprises a base, a sleeve, an excitation permanent magnet, a spring, a piezoelectric actuator, a mounting groove, an electromagnetic coil and a speed bump. When an automobile runs through the deceleration strip, the excitation permanent magnet at the uppermost side of the device is extruded, so that a positive pressure is generated on the upper surface of the excitation permanent magnet, and the excitation permanent magnet moves downwards; along with the increase of positive pressure and the action of the gravity of the device, the piezoelectric vibrator at the lowest side moves downwards, and the piezoelectric piece deforms according to the positive piezoelectric effect to generate certain electric quantity, so that piezoelectric power generation is realized. And the excitation permanent magnet passes through the electromagnetic coil in the moving process to cause the change of magnetic flux, thereby realizing the electromagnetic power generation. The invention has simple and novel structure, high reliability, environmental protection and no pollution in the power generation process, and has wide application prospect in the aspects of energy collection in the environment and the like.
Description
Technical Field
The invention relates to a power generation device installed in a deceleration strip, and belongs to the technical field of automobiles and energy utilization.
Background
The piezoelectric sensor is applied at present, but general piezoelectric power generation has problems of low environmental energy collection and utilization and the like, so that the research of a power generation device with higher efficiency becomes a current research hotspot.
The piezoelectric element collects electric energy by utilizing the positive piezoelectric effect of the piezoelectric element, and has the advantages of high energy conversion efficiency, cleanness, no pollution, no electromagnetic interference and the like, so the piezoelectric element becomes a research hotspot in the technical field of automobile and energy utilization. When the automobile runs, the dead weight of the automobile can generate larger positive pressure on the road surface. Therefore, the mechanical energy generated in the driving process of the automobile is reasonably utilized, the mechanical energy is converted into electric energy through the positive piezoelectric effect of the piezoelectric element, and the problems that the conventional battery energy supply mode needs to be replaced regularly, the environment is polluted and the like can be effectively solved.
Disclosure of Invention
The invention provides a power generation device with high power generation amount and stable electric quantity, aiming at the problems of the conventional power generation device.
The technical scheme adopted by the invention is as follows: the invention discloses a power generation device installed in a deceleration strip, which comprises a base (1), a sleeve (2), an excitation permanent magnet (3), a spring (4), a piezoelectric actuator (5), an installation groove (6), an electromagnetic coil (7) and the deceleration strip (8); the base (1) is firstly connected with two sleeves (2) on two sides, one sleeve is connected on one side and is concentric with the base (1), then eight piezoelectric actuators (5) on two sides are connected, four piezoelectric actuators are connected on one side and are symmetrically distributed around the center of the base (1), then two springs (4) on the upper side and the lower side are connected, one spring is connected on one side and is concentric with the base (1), the other end of each spring (4) is connected with an excitation permanent magnet (3) and is concentric with the base (1), one end of an electromagnetic coil (7) is connected with the inner part of each sleeve (2) and is concentric with the base (1), and the device is arranged in a deceleration strip (8); the piezoelectric power generation device designed by the invention widens the energy harvesting bandwidth by utilizing the nonlinear stiffness effect generated by the nonlinear force between the magnets, and prolongs the service life of the piezoelectric element by utilizing the non-contact magnetic force to replace mechanical impact. Therefore, the method has wide application prospect in the technical field of automobiles and energy utilization. When the automobile runs through the deceleration strip (8), the excitation permanent magnet (3) at the uppermost side of the device is extruded, and due to the repulsive force of interaction between the excitation permanent magnet (3) at the uppermost side and the piezoelectric actuator (5) at the uppermost side, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation; along with the increase of the positive pressure and the action of the gravity of the device, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation, and the piezoelectric sheet deforms to generate certain electric quantity according to the positive piezoelectric effect, so that piezoelectric power generation is realized. And the excitation permanent magnet passes through the electromagnetic coil in the moving process to cause the change of magnetic flux, thereby realizing the electromagnetic power generation. The device is connected with the surface of a road, and can collect mechanical energy in the environmental road, so that positive pressure on a contact surface is converted into mechanical energy, the mechanical energy is converted into electric energy, and then the electric energy is stored through the energy acquisition circuit.
The invention has the beneficial effects that: based on the piezoelectric effect of the piezoelectric material, the nonlinear stiffness effect is generated by utilizing the nonlinear force between the magnets under the excitation of the nonlinear magnetic force, and the energy capture frequency bandwidth of the piezoelectric element can be widened. The invention utilizes the non-contact characteristic of the acting force between the magnets, thereby greatly reducing the abrasion degree of the device and effectively prolonging the service life of the device. The invention has simple and novel structure, high reliability, environmental protection and no pollution in the power generation process, and has wide application prospect in the aspects of energy collection in the environment and the like.
Drawings
Fig. 1 shows an exploded view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic external view of the present invention.
Fig. 4 is a schematic view of the base of the present invention.
Fig. 5 is a schematic view of the piezoelectric actuator of the present invention.
Fig. 6 is a schematic diagram illustrating an actual application of the present invention.
Detailed Description
The invention discloses a power generation device installed in a deceleration strip, which comprises a base (1), a sleeve (2), an excitation permanent magnet (3), a spring (4), a piezoelectric actuator (5), an installation groove (6), an electromagnetic coil (7) and the deceleration strip (8); the base (1) is firstly connected with two sleeves (2) on two sides, one sleeve is connected on one side and is concentric with the base (1), then eight piezoelectric actuators (5) on two sides are connected, four piezoelectric actuators are connected on one side and are symmetrically distributed around the center of the base (1), then two springs (4) on the upper side and the lower side are connected, one spring is connected on one side and is concentric with the base (1), the other end of each spring (4) is connected with an excitation permanent magnet (3) and is concentric with the base (1), one end of an electromagnetic coil (7) is connected with the inner part of each sleeve (2) and is concentric with the base (1), and the device is arranged in a deceleration strip (8); the piezoelectric power generation device designed by the invention widens the energy harvesting bandwidth by utilizing the nonlinear stiffness effect generated by the nonlinear force between the magnets, and prolongs the service life of the piezoelectric element by utilizing the non-contact magnetic force to replace mechanical impact. Therefore, the method has wide application prospect in the technical field of automobiles and energy utilization. When the automobile runs through the deceleration strip (8), the excitation permanent magnet (3) at the uppermost side of the device is extruded, and due to the repulsive force of interaction between the excitation permanent magnet (3) at the uppermost side and the piezoelectric actuator (5) at the uppermost side, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation; along with the increase of the positive pressure and the action of the gravity of the device, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation, and the piezoelectric sheet deforms to generate certain electric quantity according to the positive piezoelectric effect, so that piezoelectric power generation is realized. And the excitation permanent magnet passes through the electromagnetic coil in the moving process to cause the change of magnetic flux, thereby realizing the electromagnetic power generation. The device is connected with the surface of a road, and can collect mechanical energy in the environmental road, so that positive pressure on a contact surface is converted into mechanical energy, the mechanical energy is converted into electric energy, and then the electric energy is stored through the energy acquisition circuit.
The working process of the invention is as follows: when an automobile runs through the deceleration strip (8), the excitation permanent magnet (3) at the uppermost side of the device is extruded, so that a positive pressure is generated on the upper surface of the excitation permanent magnet (3), the excitation permanent magnet (3) moves downwards, and due to the repulsive force of interaction between the excitation permanent magnet (3) at the uppermost side and the piezoelectric actuator (5) at the uppermost side, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation; along with the increase of positive pressure and the action of the gravity of the device, the piezoelectric vibrator at the lowest side moves downwards, and due to the repulsive force of interaction between the excitation permanent magnet (3) at the lowest side and the piezoelectric actuator (5) at the lowest side, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation, and the piezoelectric sheet deforms to generate certain electric quantity according to the positive piezoelectric effect, so that piezoelectric power generation is realized. And the excitation permanent magnet passes through the electromagnetic coil in the moving process to cause the change of magnetic flux, thereby realizing the electromagnetic power generation.
The principles and embodiments of the present invention have been described herein using specific examples, which are intended to facilitate an understanding of the principles and core concepts of the invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The invention discloses a power generation device installed in a deceleration strip, which comprises a base (1), a sleeve (2), an excitation permanent magnet (3), a spring (4), a piezoelectric actuator (5), an installation groove (6), an electromagnetic coil (7) and the deceleration strip (8); the base (1) is firstly connected with two sleeves (2) on two sides, one sleeve is connected on one side and is concentric with the base (1), then eight piezoelectric actuators (5) on two sides are connected, four piezoelectric actuators are connected on one side and are symmetrically distributed around the center of the base (1), then two springs (4) on the upper side and the lower side are connected, one spring is connected on one side and is concentric with the base (1), the other end of each spring (4) is connected with an excitation permanent magnet (3) and is concentric with the base (1), one end of an electromagnetic coil (7) is connected with the inner part of each sleeve (2) and is concentric with the base (1), and the device is arranged in a deceleration strip (8); the piezoelectric power generation device designed by the invention widens the energy harvesting bandwidth by utilizing the nonlinear stiffness effect generated by the nonlinear force between the magnets, and prolongs the service life of the piezoelectric element by utilizing the non-contact magnetic force to replace mechanical impact. Therefore, the method has wide application prospect in the technical field of automobiles and energy utilization. When the automobile runs through the deceleration strip (8), the excitation permanent magnet (3) at the uppermost side of the device is extruded, and due to the repulsive force of interaction between the excitation permanent magnet (3) at the uppermost side and the piezoelectric actuator (5) at the uppermost side, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation; along with the increase of the positive pressure and the action of the gravity of the device, the piezoelectric sheet (5-2) on the surface of the piezoelectric actuator (5) is stressed to generate deformation, and the piezoelectric sheet deforms to generate certain electric quantity according to the positive piezoelectric effect, so that piezoelectric power generation is realized. And the excitation permanent magnet passes through the electromagnetic coil in the moving process to cause the change of magnetic flux, thereby realizing the electromagnetic power generation. The device is connected with the surface of a road, and can collect mechanical energy in the environmental road, so that positive pressure on a contact surface is converted into mechanical energy, the mechanical energy is converted into electric energy, and then the electric energy is stored through the energy acquisition circuit.
2. A power generation device installed in a speed bump according to claim 1 is characterized in that the base (1) is provided with eight mounting grooves (6) on two sides and four mounting grooves on one side, and the mounting grooves are symmetrically distributed around the center of the base (1).
3. A power generation device installed in a deceleration strip according to claim 1, characterized in that the base (1) has eight piezoelectric actuators (5) on two sides, four on one side, symmetrically distributed around the center of the base (1), and connected in the installation groove by adhesion.
4. A power generation device installed in a deceleration strip according to claim 1, characterized in that two sleeves are arranged on two sides of the base (1), one sleeve on one side is concentric with the base (1), and the sleeves are connected to the base (1) through adhesion.
5. A power generation device installed in a deceleration strip according to claim 1, characterized in that two springs (4) are provided on two sides of the base (1), one on each side, concentric with the base (1), and are connected to the base (1) by adhesion.
6. A power generation device installed in a deceleration strip according to claim 1, characterized in that the other end of the spring (4) is provided with a shock excitation permanent magnet (3) which is concentric with the base (1) and is connected to the spring (4) by adhesion.
7. A vehicle-based power generation device according to claim 1, wherein one end of the electromagnetic coil (7) is connected to the inside of the sleeve (2), is concentric with the base (1), and is connected to the sleeve (2) by adhesion.
8. A power plant for installation in a speed bump according to claim 1 wherein the piezoelectric actuator (5) is composed of a substrate (5-1), a piezoelectric sheet (5-2) and a tip permanent magnet (5-3); the piezoelectric sheet (5-2) and the tip permanent magnet (5-3) are connected to the base layer (5-1) through adhesion.
9. A power plant for installation in a speed bump according to claim 1 wherein the plant is installed in a speed bump (8) and is arranged perpendicular to the bottom surface of the speed bump (8).
10. A power generation device installed in a deceleration strip according to claim 1, characterized in that the piezoelectric sheet of the piezoelectric actuator (5) is made of PZT or PVDF, which is a flexible and tough piezoelectric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011048371.9A CN112177871A (en) | 2020-09-29 | 2020-09-29 | Power generation device installed in deceleration strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011048371.9A CN112177871A (en) | 2020-09-29 | 2020-09-29 | Power generation device installed in deceleration strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112177871A true CN112177871A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011048371.9A Pending CN112177871A (en) | 2020-09-29 | 2020-09-29 | Power generation device installed in deceleration strip |
Country Status (1)
| Country | Link |
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| CN (1) | CN112177871A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411622A (en) * | 2022-02-16 | 2022-04-29 | 嵊州市浙江工业大学创新研究院 | Floating wave bank based on piezoelectric effect |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204370344U (en) * | 2014-12-02 | 2015-06-03 | 四川大学 | The magnetorheological deceleration strip of passive self-adaptive |
-
2020
- 2020-09-29 CN CN202011048371.9A patent/CN112177871A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204370344U (en) * | 2014-12-02 | 2015-06-03 | 四川大学 | The magnetorheological deceleration strip of passive self-adaptive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411622A (en) * | 2022-02-16 | 2022-04-29 | 嵊州市浙江工业大学创新研究院 | Floating wave bank based on piezoelectric effect |
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