CN213754356U

CN213754356U - Special-shaped beam piezoelectric energy recovery device

Info

Publication number: CN213754356U
Application number: CN202023063993.7U
Authority: CN
Inventors: 尹黎明; 胡伟康; 尹梦涵; 贾世盛
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-07-20
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a dysmorphism roof beam piezoelectricity energy recuperation device, including base, clamping device and dysmorphism roof beam, clamping device sets up in the top of base, dysmorphism roof beam is fixed in the top of base through clamping device, the spout has all been seted up to the left and right sides at base top. The utility model discloses a set up special-shaped beam structure, realized the high efficiency collection to multi-direction low amplitude vibration environment energy, realized two degrees of freedom piezoelectricity vibration energy collection through local, greatly widened the frequency band, improved energy collection efficiency, be equipped with the spout on the base of special-shaped beam installation, accessible base, fixture change special-shaped beam dog-ear size with the cooperation of special-shaped beam, realize the continuous regulation to energy recovery device effective acquisition frequency, the utility model discloses simple structure simple to operate, job stabilization is reliable.

Description

Special-shaped beam piezoelectric energy recovery device

Technical Field

The utility model relates to a dysmorphism roof beam piezoelectricity energy recuperation device, the utensil belongs to piezoelectricity vibration energy harvesting and new forms of energy development technical field.

Background

In recent years, as the application of Wireless Sensor Networks (WSNs) in the fields of environmental monitoring and prediction, home medicine, smart homes, urban intelligent transportation and the like is increasing, providing a long-term stable power supply for wireless sensors has been an important problem that hinders the development progress of wireless sensor networks. The use of chemical batteries tends to limit the widespread use of wireless sensor networks, since the batteries used in devices have several fatal drawbacks, such as: short life, low power density, generation of hazardous waste and high maintenance costs. In view of the reasons that vibration energy is widely available in daily life and engineering practice, and is not easily affected by factors such as geography and weather, etc., vibration energy collection techniques have attracted strong attention of researchers. The piezoelectric vibration energy recovery device can provide electric energy for low-power microelectronic products by capturing the vibration energy in the environment, and can effectively solve the problems that the traditional chemical battery is low in energy density, needs to be replaced or charged regularly, pollutes the environment and the like, so that the technology for capturing the vibration energy in the environment by the piezoelectric vibration energy recovery device has a very wide application prospect. In recent years, scholars at home and abroad propose various tuning structures to realize timely adjustment of the resonant frequency of the energy recovery device, such as: the piezoelectric vibration energy recovery device with the structure can not realize continuous adjustment of the resonance frequency band of the energy recovery device, local acquisition of a full frequency domain and combination with the acquisition function of low-amplitude vibration energy in multiple directions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dysmorphism roof beam piezoelectricity energy recuperation device possesses and uses portably, and stability is strong, gather the advantage that the frequency domain is adjustable in succession, multi-direction collection, broadband was gathered under low frequency vibration, has solved current vibration energy collection device and has gathered the problem that the direction is single, the collection frequency band is narrow and be difficult to continuous adjustment, vibration energy collection inefficiency.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dysmorphism roof beam piezoelectricity energy recuperation device, includes base, clamping device and dysmorphism roof beam, its characterized in that: the special-shaped beam is fixed on the top of the base through the clamping device, and sliding grooves are formed in the left side and the right side of the top of the base;

the special-shaped beam comprises a bottom beam, side beams and a top beam, wherein the side beams and the bottom beam are respectively provided with two groups, piezoelectric sheets are adhered to one side opposite to the side beams and the top of the top beam through conductive adhesives, first mass blocks are adhered to the top and the bottom of the middle position of the top beam through glue, and second mass blocks are symmetrically adhered to the tops of the left side and the right side of the side beams through glue;

the clamping device comprises a gasket, a lower clamp plate, an upper clamp plate and a bolt, the top of the gasket is in contact with the bottom of the base, the lower clamp plate is movably connected to the top of the base, the top of the lower clamp plate is in contact with the bottom of the bottom beam, the top of the bottom beam is in contact with the bottom of the upper clamp plate, and one end of the bolt sequentially penetrates through the gasket, the sliding groove, the lower clamp plate, the bottom beam and the upper clamp plate and is connected with the nut through threads.

Preferably, the clamping device is provided with two groups, the gasket, the sliding groove, the lower clamping plate, the upper clamping plate, the bolt and the nut are symmetrically provided with two groups, the piezoelectric patches are provided with four groups, the first mass block is provided with two groups, and the second mass block is provided with four groups.

Preferably, dysmorphism roof beam is bent by the rectangle roof beam that an integral piece adopted H60 brass material to form, the contained angle is 45 degrees between floorbar and the curb girder, the contained angle is 125 degrees between curb girder and the back timber, the back timber sets up to the arch.

Preferably, the piezoelectric patches are made of PZT-5H piezoelectric ceramic sheets, leads are welded to two pole faces of each piezoelectric patch, and the first mass block and the second mass block are made of stainless steel.

Preferably, gasket, punch holder and lower plate all adopt the ya keli material, and the size can be selected according to the practical application demand, bolt and nut all adopt the standard component.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a cooperation of gasket, spout, lower plate, punch holder, bolt and nut through changing the position of bolt in the spout, has realized the dog-ear size to the bending of dysmorphism beam structure, the contained angle between floorbar and curb girder and the back timber promptly to realized gathering effective frequency domain's regulation at different excitation states to the application, very big improvement vibration energy collection efficiency, and simple to operate is reliable and stable.

2. The utility model discloses a set up special-shaped beam structure, two direction vibration energy collections have been realized, the high efficiency collection of low amplitude vibration environment energy has been realized simultaneously, two degrees of freedom vibration piezoelectricity energy collection has been realized locally, the collection frequency band has greatly been widened, energy collection efficiency has been improved, special-shaped beam structure is formed for rectangular beam bending, adopt the integrated design, compact structure, high durability and convenient installation, and is reliable and stable, through setting up punch holder and lower plate, make thinner special-shaped beam structure install, adjust and normal during operation non-deformable, also made things convenient for the installation and fixed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is a right side view of the present invention.

In the figure: the device comprises a first mass block 1, a piezoelectric plate 2, a second mass block 3, a sliding chute 4, a base 5, a clamping device 6, a special-shaped beam 7, a gasket 8, a lower clamping plate 9, an upper clamping plate 10, a nut 11, a bolt 12, a bottom beam 13, a side beam 14 and a top beam 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a piezoelectric energy recovery device for a special-shaped beam comprises a base 5, a clamping device 6 and a special-shaped beam 7, wherein the special-shaped beam 7 is formed by bending a rectangular beam, the structure is integrally designed, the structure is compact, the installation is convenient, stable and reliable, the clamping device 6 is arranged on the top of the base 5, the special-shaped beam 7 is fixed on the top of the base 5 through the clamping device 6, sliding grooves 4 are respectively formed in the left side and the right side of the top of the base 5, the adjustment of the folding angle of the special-shaped beam 7 by the sliding grooves 4 can realize the effective acquisition frequency adjustment of the energy recovery device, the special-shaped beam 7 comprises a bottom beam 13, a side beam 14 and a top beam 15, two groups of the side beam 14 and the bottom beam 13 are respectively arranged, a piezoelectric sheet 2 is respectively adhered to one side of the side beam 14 and the top of the top beam 15 through conductive glue, a first mass block 1 is adhered to the top and the bottom of the middle position of the top beam 15 through glue, a second mass block 3 is symmetrically adhered to the tops of the left side of the side beam 14, clamping device 6 includes gasket 8, lower plate 9, upper plate 10 and bolt 12, upper plate 10 and lower plate 9 make thinner dysmorphism roof beam 7 structure difficult to deform when installation, regulation and normal work, the top of gasket 8 contacts with the bottom of base 5, lower plate 9 swing joint is in the top of base 5, the top of lower plate 9 contacts with the bottom of floorbar 13, the top of floorbar 13 contacts with the bottom of upper plate 10, the one end of bolt 12 runs through gasket 8, spout 4 in proper order, lower plate 9, floorbar 13 and upper plate 10 and has nut 11 through threaded connection.

The clamping device 6 is provided with two groups, two groups are symmetrically arranged on a gasket 8, a sliding groove 4, a lower clamping plate 9, an upper clamping plate 10, bolts 12 and nuts 11, four groups are arranged on the piezoelectric sheet 2, two groups are arranged on a first mass block 1, four groups are arranged on a second mass block 3, a special-shaped beam 7 is formed by bending a whole rectangular beam made of H60 brass, an included angle between a bottom beam 13 and a side beam 14 is 45 degrees, an included angle between the side beam 14 and a top beam 15 is 125 degrees, the top beam 15 is arched, the piezoelectric sheet 2 is made of PZT-5H piezoelectric ceramic sheets, leads are welded on two polar surfaces of the piezoelectric sheet 2, the first mass block 1 and the second mass block 3 are made of stainless steel, and the gasket 8, the upper clamping plate 10 and the lower clamping plate 9 are made of acrylic materials, the size can be selected according to the actual application requirement, and the bolt 12 and the nut 11 are standard parts.

When the piezoelectric device is used, firstly, four groups of piezoelectric sheets 2 are respectively stuck to one side opposite to the side beam 14 and the top of the top beam 15, then two groups of first mass blocks 1 are symmetrically stuck to the top and the bottom of the middle position of the top beam 15, then four groups of second mass blocks 3 are symmetrically stuck to the tops of the left side and the right side of the side beam 14, the first mass blocks 1 and the second mass blocks 3 have the vibration amplification effect, the size of the first mass blocks can be adjusted according to actual needs, the distance between the two ends of the bottom beam 13 can be adjusted according to the specific vibration environment in use by matching the clamping device 6 and the sliding groove 4, the frequency band of the collecting device is adapted to the vibration environment, the energy collecting efficiency is greatly improved, and finally, the base 5 is fixed on a vibrating application object.

When the energy collector works, the base 5 and the clamping device 6 have high rigidity, the clamping device 6 can vibrate under the action of left-right and up-down vibration excitation through the conduction of the base 5, and then the special-shaped beam 7 is driven to vibrate, the experiment verifies that the first mass block 1 and the second mass block 3 have an amplification effect on the vibration, the piezoelectric sheet 2 is forced to deform to generate electric energy through the vibration of the special-shaped beam 7, the vibration energy in the environment can be converted into the electric energy, and therefore the piezoelectric vibration energy collection function of the energy recovery device is achieved.

In summary, the following steps: this dysmorphism roof beam piezoelectricity energy recuperation device has solved the current vibration energy collection device and has gathered the single, gather the narrow and difficult continuous regulation of frequency band, the problem of vibration energy collection inefficiency of direction through the cooperation of first quality piece 1, piezoelectric patches 2, second quality piece 3, spout 4, base 5, clamping device 6, dysmorphism roof beam 7, gasket 8, lower plate 9, punch holder 10, nut 11, bolt 12, floorbar 13, curb girder 14 and back timber 15.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dysmorphism roof beam piezoelectricity energy recuperation device, includes base (5), clamping device (6) and dysmorphism roof beam (7), its characterized in that: the clamping device (6) is arranged at the top of the base (5), the special-shaped beam (7) is fixed at the top of the base (5) through the clamping device (6), and sliding grooves (4) are formed in the left side and the right side of the top of the base (5);

the special-shaped beam (7) comprises a bottom beam (13), side beams (14) and a top beam (15), wherein the side beams (14) and the bottom beam (13) are respectively provided with two groups, the opposite side of the side beam (14) and the top of the top beam (15) are respectively adhered with a piezoelectric sheet (2) through conductive adhesives, the top and the bottom of the middle position of the top beam (15) are respectively adhered with a first mass block (1) through glue symmetrically, and the tops of the left side and the right side of the side beam (14) are respectively adhered with a second mass block (3) through glue symmetrically;

clamping device (6) include gasket (8), lower plate (9), punch holder (10) and bolt (12), the top of gasket (8) contacts with the bottom of base (5), lower plate (9) swing joint is in the top of base (5), the top of lower plate (9) contacts with the bottom of floorbar (13), the top of floorbar (13) contacts with the bottom of punch holder (10), the one end of bolt (12) runs through gasket (8), spout (4), lower plate (9), floorbar (13) and punch holder (10) in proper order and has nut (11) through threaded connection.

2. The shaped beam piezoelectric energy recovery device of claim 1, wherein: clamping device (6) are provided with two sets ofly, gasket (8), spout (4), lower plate (9), upper plate (10), bolt (12) and nut (11) equal symmetry are equipped with two sets ofly, piezoelectric patches (2) are provided with four sets ofly, first quality piece (1) is provided with two sets ofly, second quality piece (3) are provided with four sets ofly.

3. The shaped beam piezoelectric energy recovery device of claim 1, wherein: dysmorphism roof beam (7) are bent by the rectangle roof beam that a whole piece adopted H60 brass material and are formed, the contained angle is 45 degrees between floorbar (13) and curb girder (14), the contained angle is 125 degrees between curb girder (14) and back timber (15), back timber (15) set to the arch.

4. The shaped beam piezoelectric energy recovery device of claim 1, wherein: the piezoelectric patches (2) are made of PZT-5H piezoelectric ceramic sheets, leads are welded on the two pole faces of the piezoelectric patches (2), and the first mass block (1) and the second mass block (3) are made of stainless steel.

5. The shaped beam piezoelectric energy recovery device of claim 1, wherein: gasket (8), punch holder (10) and lower plate (9) all adopt acrylic material, and the size can be selected according to the practical application demand, bolt (12) all adopt the standard component with nut (11).