CN215420129U

CN215420129U - Vibrating mechanical energy power generation device

Info

Publication number: CN215420129U
Application number: CN202120789354.4U
Authority: CN
Inventors: 孙春华; 尚广庆
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-01-04
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a vibrating mechanical energy power generation device which comprises a box body, wherein a vibrating beam and a coil are arranged in the box body, one end of the vibrating beam is a fixed end, the other end of the vibrating beam is a suspension end, a vibrating magnet is arranged at the suspension end, the coil is close to the suspension end and matched with the vibrating magnet, and the fixed end is provided with piezoelectric ceramics. When the vibration mechanical energy power generation device is forced to generate vibration, the vibration beam in the box body swings along with the vibration mechanical energy power generation device. At the moment, the vibration beam presses the piezoelectric ceramic to deform so as to generate electric energy. Meanwhile, relative motion is generated between the vibrating magnet and the coil, and the coil cuts the magnetic induction lines in the motion process to generate electric energy. The vibration mechanical energy power generation device simultaneously utilizes the electromagnetic induction and the piezoelectric ceramics to generate power, so that the utilization efficiency of the vibration mechanical energy is improved.

Description

Vibrating mechanical energy power generation device

Technical Field

The utility model relates to the technical field of vibration mechanical energy power generation, in particular to a vibration mechanical energy power generation device.

Background

With the increasing global warming and the shortage of non-renewable resources such as petroleum, coal, natural gas and the like, the search for renewable and sustainable green energy becomes an important challenge for the sustainable development of human civilization, and is the strategic focus of the current and future scientific and technological development. The vibration mechanical energy is widely existed in nature and is the most common energy. The methods used to convert the vibrational mechanical energy into electrical energy are generally 3: electrostatic, electromagnetic, and piezoelectric. The electrostatic type needs to provide initial electric energy for the energy harvesting device, and the energy harvesting device is complex and is not suitable for a self-powered system; the piezoelectric type energy harvesting circuit has the advantages of high efficiency, high energy density, reliable work, strong adaptability, no pollution and low cost, but because of the characteristic of large internal resistance of the piezoelectric ceramic material, the current excited in the energy harvesting circuit is small, and the vibration mechanical energy cannot be fully utilized.

Therefore, how to effectively utilize the vibration mechanical energy to generate electricity is a technical problem which needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vibrating mechanical energy power generation device which can generate power through electromagnetic induction and piezoelectric ceramics at the same time, and improve the power generation efficiency of mechanical vibration energy.

In order to achieve the purpose, the utility model provides a vibrating mechanical energy power generation device which comprises a box body, wherein a vibrating beam and a coil are arranged in the box body, one end of the vibrating beam is a fixed end, the other end of the vibrating beam is a suspension end, a vibrating magnet is arranged at the suspension end, the coil is close to the suspension end and matched with the vibrating magnet, and the fixed end is provided with piezoelectric ceramics.

Preferably, a base plate is arranged in the box body, a mounting hole is formed in the base plate, the suspension end is fixed in the mounting hole, and the suspension end extends in a direction away from the base plate.

Preferably, be the cuboid in the box, the base plate sets up along vertical direction the middle part of box, the both sides of base plate all are equipped with the vibration roof beam, it is parallel in the box the side of base plate is equipped with the coil.

Preferably, the base plate is provided with at least two rows of mounting hole groups, each row of mounting hole group comprises at least two mounting holes, and two ends of each mounting hole are respectively connected with the fixed end of one vibration beam.

Preferably, the coils on the side wall parallel to the substrate in the box body correspond to the vibration magnets at the suspension end of the vibration beam one by one, and the coils corresponding to the vibration beam in the same mounting hole group form a coil group.

Preferably, a magnetism isolating plate located between two adjacent coil groups is arranged on the side wall parallel to the substrate in the box body.

Preferably, the coil pass through the mounting panel with the inside wall fixed connection of box, the coil inboard is equipped with fixed magnet, fixed magnet orientation the one end of vibration roof beam with the vibration magnet orientation the one end polarity of coil is the same.

Preferably, the base plate and the box body are made of magnetism isolating materials.

The utility model provides a vibrating mechanical energy power generation device which comprises a box body, wherein a vibrating beam and a coil are arranged in the box body, one end of the vibrating beam is a fixed end, the other end of the vibrating beam is a suspension end, a vibrating magnet is arranged at the suspension end, the coil is close to the suspension end and is matched with the vibrating magnet, and the fixed end is provided with piezoelectric ceramics.

When the vibration mechanical energy power generation device is forced to generate vibration, the vibration beam in the box body swings along with the vibration mechanical energy power generation device. At the moment, the vibration beam presses the piezoelectric ceramic to deform so as to generate electric energy. Meanwhile, relative motion is generated between the vibrating magnet and the coil, and the coil cuts the magnetic induction lines in the motion process to generate electric energy. The vibration mechanical energy power generation device simultaneously utilizes the electromagnetic induction and the piezoelectric ceramics to generate power, so that the utilization efficiency of the vibration mechanical energy is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a vibration mechanical energy power generation device provided by the utility model;

FIG. 2 is a front view of the substrate of FIG. 1;

FIG. 3 is a side view of the substrate of FIG. 1;

fig. 4 is a schematic view of the structure of fig. 1 in which the vibration beam is coupled to the coil.

Wherein the reference numerals in fig. 1 to 4 are:

the vibration-damping device comprises a box body 1, a coil 2, a vibration magnet 3, a vibration beam 4, piezoelectric ceramics 5, a substrate 6, a fixed magnet 7, a magnetic isolation plate 8 and a mounting hole 61.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a vibration mechanical energy power generation device provided in the present invention; FIG. 2 is a front view of the substrate of FIG. 1; FIG. 3 is a side view of the substrate of FIG. 1; fig. 4 is a schematic view of the structure of fig. 1 in which the vibration beam is coupled to the coil.

The structure of the vibrating mechanical energy power generation device provided by the utility model is shown in figure 1, and the vibrating mechanical energy power generation device comprises a box body 1, a vibrating beam 4, a vibrating magnet 3 and a coil 2. The vibrating beam 4 in the box body 1 is arranged in the box body 1, the vibrating beam 4 is rectangular plate-shaped, one end of the vibrating beam is a fixed end, and the other end of the vibrating beam is a suspension end. The fixed end is fixedly arranged in the box body 1, and the suspension end extends towards the side wall of the box body 1. The coil 2 is fixed in the box body 1 through the inner side wall of the box body 1 and corresponds to the position of the suspension end of the vibration beam 4, and the suspension end is provided with a vibration magnet 3. When the box body 1 vibrates, the vibration beam 4 swings, the vibration magnet 3 moves along with the suspension end, at the moment, the coil 2 is fixed relative to the box body 1, therefore, the vibration magnet 3 and the coil 2 move relatively, and the coil 2 cuts the magnetic induction line to generate induction current. And the coil 2 in the box body 1 is connected with an induction output lead so as to lead out the induction current. In addition, the fixed end of the vibration beam 4 is provided with piezoelectric ceramics 5, the piezoelectric ceramics 5 is squeezed to generate current in the swinging process of the vibration beam 4, and the piezoelectric ceramics 5 is connected with a piezoelectric output lead to lead out the current generated by the piezoelectric ceramics 5.

Alternatively, as shown in fig. 1, a base plate 6 for mounting the vibration beam 4 is provided in the cabinet 1. Specifically, box 1 is the cuboid, has the cavity of cuboid in the box 1. The base plate 6 is located the middle part of cavity, and the upper end of base plate 6 links to each other with the top of box 1, and the lower extreme of base plate 6 links to each other with the bottom of box 1, and the both sides of base plate 6 link to each other with the relative both sides lateral wall of box 1 respectively. The substrate 6 is disposed in a vertical direction and divides the chamber into two parts. The base plate 6 has a mounting hole 61 therein, and the fixed end of the vibration beam 4 is inserted into the mounting hole 61, and the vibration beam 4 is perpendicular to the base plate 6 and extends in a direction away from the base plate 6. In order to improve the utilization rate of the space in the box body 1, the two sides of the base plate 6 are provided with vibrating beams 4. The coil 2 is installed on the inner sidewall of the cabinet 1 parallel to the base plate 6, and corresponds to the position of the vibration beam 4. Of course, the user can also set up polylith base plate 6 in box 1 as required, and coil 2 can link to each other with the inside wall of box 1 or base plate 6, and coil 2 corresponds with the position of vibration roof beam 4.

Optionally, the substrate 6 is provided with at least two rows of mounting holes 61, and each row of mounting holes 61 includes at least two mounting holes 61. As shown in fig. 2 and 3, the substrate 6 is provided with 4 rows of mounting holes 61, each row of the mounting holes 61 including 4 mounting holes 61, all the mounting holes 61 forming a 4 × 4 array. All the vibration beams 4 fixed in the mounting holes 61 have the same thickness, the vibration beams 4 may have the same length, and the lengths of the vibration beams 4 in the same column or the same row may be increased or decreased. Likewise, the width of the vibration beams 4 may be all the same, and may be increased or decreased in the same row or column. Of course, the user may set the distribution of the length and width of the vibration beam 4 according to the need, which is not limited herein. The length and the width of the vibration beam 4 are changed, the natural frequency of the vibration beam is also changed, so that when the vibration mechanical energy power generation device vibrates, the vibration beam 4 close to the vibration frequency has larger amplitude, the power generation amount is correspondingly increased, and the energy harvesting range of the vibration mechanical energy power generation device is favorably improved.

In addition, two vibration beams 4 can be installed in the same installation hole 61, and specifically, both ends of each installation hole 61 are respectively connected with the fixed end of one vibration beam 4. The upper and lower sides of the vibrating beam 4 close to the fixed end are both provided with piezoelectric ceramics 5. Of course, the user may also provide mounting grooves on both sides of the substrate 6 for mounting the vibration beam 4 or the coil 2, which is not limited herein.

Alternatively, the coils 2 correspond to the positions of the vibrating magnets 3 one to one. Specifically, each vibration beam 4 is provided with one coil 2 above the projection of the side wall on which the coil 2 is provided. Thus, the coils 2 corresponding to the vibration beams 4 fixed in the same set of the mounting holes 61 may form a set of the coils 2. All coils 2 in the same coil 2 group are located at the same level. Of course, the user can set the number and distribution of the mounting holes 61 by himself or herself, and the vibrating magnet 3 and the coil 2 can be arranged in a one-to-many manner, which is not limited herein.

Optionally, in order to avoid the vibration magnet 3 from affecting other magnets except the corresponding magnet, a magnetism isolating plate 8 is further arranged in the box body 1. Specifically, as shown in fig. 1, the magnetic shield 8 is provided on a side wall parallel to the substrate 6. The magnetic isolation plate 8 is arranged between two adjacent coil 2 groups, and the vibrating magnet 3 generally vibrates along a plane perpendicular to the magnetic isolation plate 8, so that the magnetic isolation plate 8 can effectively isolate the magnetic induction lines of the vibrating magnet 3. In addition, the box body 1 and the substrate 6 are also usually made of a magnetic isolation material, and the magnetic isolation material can specifically refer to the prior art and is not described herein again.

Alternatively, as shown in fig. 1, the coil 2 is fixedly connected with the inner side wall of the box body 1 through a mounting plate, and the axis of the coil 2 is perpendicular to the vibration beam 4. Meanwhile, a fixed magnet 7 is arranged on the inner side of the coil 2, and the polarity of one end of the fixed magnet 7 facing the vibration beam 4 is the same as that of one end of the vibration magnet 3 facing the coil 2. When the vibration beam 4 vibrates, the acting force of the vibration magnet 3 and the fixed magnet 7 changes along with the change of the distance between the two. Due to the interaction of the vibrating magnet 3 and the fixed magnet 7, an energy storage function is achieved. The damping coefficient of the vibration beam 4 in the vibration process is continuously changed, so that the resonance frequency range of the vibration beam 4 is widened, and the vibration beam 4 can keep vibrating for a long time especially under the condition of low-frequency vibration. Of course, the user may also set a spring between the coil 2 and the suspension end for energy storage according to the requirement, which is not limited herein.

In this embodiment, the vibrating mechanical energy power generation device is provided with the piezoelectric ceramic 5 and the vibrating magnet 3 at the fixed end and the suspension section of the vibrating beam 4, and the coil 2 for matching with the vibrating magnet 3 is arranged in the box body 1. In the vibration process of the vibration beam 4, electricity can be generated through the piezoelectric ceramics 5, and induced current can be generated through the matching of the vibration magnet 3 and the coil 2, so that the energy harvesting efficiency is improved. In addition, a fixed magnet 7 is further arranged in the coil 2, and the fixed magnet 7 interacts with the vibration magnet 3 to play a role in energy storage in the vibration process. Particularly, in the low-frequency vibration process, as the distance between the vibration magnet 3 and the vibration magnet 3 is reduced, the repulsive force between the two is increased, so that the vibration frequency of the vibration beam 4 is improved, the low-frequency vibration is effectively utilized for power generation, and the energy harvesting efficiency is further improved.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The present invention provides a vibration mechanical energy power generation device. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a vibration mechanical energy power generation facility, a serial communication port, including box (1), be equipped with vibration roof beam (4) and coil (2) in box (1), the one end of vibration roof beam (4) is the stiff end, and the other end is the suspension end, the suspension end is equipped with vibration magnet (3), coil (2) are close to the suspension end, in order with vibration magnet (3) cooperation, the stiff end is equipped with piezoceramics (5).

2. The vibrating mechanical energy power generating apparatus as recited in claim 1, wherein a base plate (6) is provided in the case (1), the base plate (6) has a mounting hole (61) therein, and the suspension end is fixed in the mounting hole (61) and extends in a direction away from the base plate (6).

3. The vibrating mechanical energy power generation device as claimed in claim 2, wherein the box body (1) is a cuboid, the substrate (6) is arranged in the middle of the box body (1) along the vertical direction, the vibrating beams (4) are arranged on two sides of the substrate (6), and the coil (2) is arranged on the side face parallel to the substrate (6) in the box body (1).

4. A vibrating mechanical energy power generating device as defined in claim 3, wherein said base plate (6) is provided with at least two rows of mounting hole (61) sets, each row of mounting hole (61) set comprising at least two of said mounting holes (61), and both ends of each of said mounting holes (61) are respectively connected to said fixed end of one of said vibrating beams (4).

5. The vibrating mechanical energy power generating apparatus as recited in claim 4, characterized in that the coils (2) on the side walls parallel to the base plate (6) in the case (1) are in one-to-one correspondence with the vibrating magnets (3) at the suspension ends of the vibrating beams (4), and the coils (2) corresponding to the vibrating beams (4) in the same set of mounting holes (61) form a set of coils (2).

6. The vibrating mechanical energy power generation device as claimed in claim 5, wherein a magnetism isolating plate (8) is arranged on the side wall parallel to the base plate (6) in the box body (1) and located between two adjacent coil (2) groups.

7. The vibrating mechanical energy power generation device as claimed in any one of claims 1 to 6, wherein the coil (2) is fixedly connected with the inner side wall of the box body (1) through a mounting plate, a fixed magnet (7) is arranged on the inner side of the coil (2), and the end of the fixed magnet (7) facing the vibrating beam (4) and the end of the vibrating magnet (3) facing the coil (2) have the same polarity.

8. The vibrating mechanical energy power generation device as claimed in any one of claims 2 to 6, wherein the base plate (6) and the case (1) are made of a magnetic isolation material.