Push type piezoelectric energy harvesting device based on magnetic excitation
Technical Field
The invention relates to a pressing type piezoelectric energy harvesting device based on magnetic excitation, and belongs to the technical field of piezoelectric power generation and self-energy supply application.
Background
With the increasing global warming and the shortage of non-renewable resources such as petroleum, coal, natural gas and the like, scientific and technical personnel in various countries begin to search and develop new energy. Ambient vibrational energy is ubiquitous and has a high energy density, the potential value of which has attracted increasing attention and thinking. There are three ways to capture vibrational energy from the environment: piezoelectric, electrostatic, and electromagnetic. The piezoelectric type converts the vibration energy into electric energy by utilizing the positive piezoelectric effect of the piezoelectric material, has the outstanding advantages of high energy harvesting efficiency, large energy density, reliable work, strong adaptability, no pollution, low cost and the like, and the developed energy harvesting device has a simple structure and is a typical 'green' technology.
Disclosure of Invention
The invention provides a pressing type piezoelectric energy harvesting device based on magnetic excitation, which can convert pressure in the environment into electric energy for utilization.
The technical scheme adopted by the invention is as follows: a pressing type piezoelectric energy harvesting device based on magnetic excitation is composed of a frame, a spring mechanism, a rectangular piezoelectric vibrator, a pressing ring, a pin, a seesaw, a top cover and a bolt.
The specific installation process adopted by the invention is as follows: the frame is divided into an inner cavity and an outer cavity, a spring mechanism is arranged on the outer cavity, a partition plate is arranged between the inner cavity and the outer cavity, a groove for installing a seesaw is arranged at the top end of the partition plate, a rectangular hole is formed in the seesaw and used for being installed on the partition plate of the frame, a pressing block is adhered to the end close to the rectangular hole and used for placing the seesaw on the spring mechanism, a pressing ring is installed on the partition plate of the frame through a pin, and a boss for installing a rectangular piezoelectric vibrator is arranged in the pressing ring; a magnet block is arranged on one section of the rectangular piezoelectric vibrator; the top cover is provided with a rectangular hole, so that the pressing block can be conveniently exposed; the top cover is mounted with the frame by bolts.
In the invention, the frame is divided into an inner cavity and an outer cavity, the inner cavity and the outer cavity are separated by a partition plate, and a groove for mounting a seesaw is arranged on the partition plate; a spring mechanism is installed on the outer cavity, a rectangular hole is formed in the seesaw, the rectangular hole of the seesaw is placed on a frame partition plate groove, one end close to the rectangular hole is placed on the spring mechanism, and a magnet block is bonded to the other end of the spring mechanism and used for exciting the rectangular piezoelectric vibrator.
In the invention, the spring mechanism consists of a cover, a hollow cylinder and a spring; the small hollow cylinder is arranged in the hollow cylinder, the small cylinder is arranged on the cover and used for being installed on the small hollow cylinder, and the spring is sleeved on the small cylinder; the spring mechanism can restrain the transverse deformation of the spring and utilize the spring to the maximum extent.
In the present invention, the rectangular piezoelectric vibrator is divided into three parts: the piezoelectric ceramic is adhered to the rectangular metal plate, the magnet block is installed at one end of the rectangular metal plate, and the other end of the rectangular metal plate is embedded on a boss of the compression ring.
In the invention, the seesaw is divided into three parts: the device comprises a pressing block, a rectangular seesaw and a magnet block; the rectangular seesaw is provided with a rectangular hole and is used for being arranged on a clapboard groove on the frame; one end close to the rectangular groove is provided with a pressing block, and the other end is provided with a magnet block.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the frame construction;
FIG. 3 is a schematic structural view of the spring mechanism;
FIG. 4 is a schematic view of the hollow cylinder of the spring mechanism;
fig. 5 is a schematic structural view of a rectangular piezoelectric vibrator;
FIG. 6 is a schematic view of a seesaw;
FIG. 7 is a schematic structural view of the top cover;
FIG. 8 is a schematic view of a screw;
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, and fig. 8, in an embodiment of the present invention, a specific structure includes:
the utility model provides a push type piezoelectricity energy harvesting device based on magnetic excitation which characterized in that: the piezoelectric vibrator consists of a frame, a spring mechanism, a seesaw, a pressing block, a magnet block, a pressing ring, a rectangular piezoelectric vibrator and a top cover; the frame is divided into an inner cavity and an outer cavity, a spring mechanism is arranged on the outer cavity, a partition plate is arranged between the inner cavity and the outer cavity, a structure for installing a seesaw is arranged at the top end of the partition plate, a rectangular hole is formed in the seesaw and used for being installed on the partition plate of the frame, a pressing block is installed at the end close to the rectangular hole and placed on the spring mechanism, a pressing ring is installed on the partition plate of the frame, and a structure for installing a rectangular piezoelectric vibrator is arranged in the pressing ring; a magnet block is arranged on one section of the rectangular piezoelectric vibrator; the top cover is provided with a rectangular hole, so that the pressing block can be exposed conveniently.
The working process of the invention is as follows: when a pressing block in the device is excited by the external environment, the magnet block at the other end of the seesaw can be driven to move upwards, the magnet block at one end of the rectangular piezoelectric vibrator can be excited, the spring mechanism can be compressed downwards under the action of the pressing block, and then can be stretched again under the action of the spring to recover the original state.
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.