CN111342701B - Tumbler type multi-wind-direction wind-force piezoelectric power generation device with nonlinear magnetic disturbance - Google Patents

Abstract

The invention discloses a tumbler type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device, relates to the technical field of new energy power generation, and can capture wind energy in any direction to perform piezoelectric power generation. The device comprises two parts of power generation units: the first part is a magnetic vibration power generation part, incoming wind in any direction applies an excitation to the cylindrical rigid body, the cylindrical rigid body drives the tumbler-type stabilizer to swing under the excitation, the piezoelectric vibrator generates nonlinear vibration response under the disturbance of magnetic force, and wind energy is converted into electric energy; the second part is a collision power generation part, balance balls in the tumbler stabilizer roll by the swing of the tumbler stabilizer and magnetic disturbance, the balance balls impact the piezoelectric fiber layer, and the piezoelectric fiber layer deforms to generate electric energy. The piezoelectric power generation device not only is well suitable for the action environment of natural wind, but also improves the power generation efficiency by adopting the arrangement mode of the circumferential array, and solves the problems of limitation and low efficiency that the traditional piezoelectric power generation device can only receive wind coming from a single direction.

Description

A tumbler-type nonlinear magnetic disturbance multi-wind direction wind piezoelectric generator

technical field

The invention belongs to the field of energy capture of nonlinear magnetic vibration power generation and piezoelectric power generation, in particular to a tumbler-type nonlinear magnetic disturbance multi-wind direction wind piezoelectric power generation device.

Background technique

With the rapid development of the electromechanical industry, wireless sensor technologies such as micro-electromechanical systems (MEMS) and low-power embedded technologies are becoming more and more integrated, intelligent and miniaturized. Therefore, higher demand has also been put forward for its energy supply industry, but because the traditional energy supply industry has been stagnant, the shortcomings of battery power supply have gradually emerged (small capacity, short life, difficult recycling, easy to cause heavy metal pollution) , which seriously limits the development of wireless sensor technology. Using clean energy to power low-energy electronic devices has become an important research direction.

It is an ideal energy capture method to convert the energy existing in nature (wind energy, solar energy, tidal energy, etc.) into electrical energy to supply power for equipment. Wind energy is a clean energy with extremely abundant reserves and zero cost. It is a clean energy without pollution. It uses the inexhaustible and inexhaustible wind energy in nature to generate electricity. An economical and feasible power supply method. Traditional wind power generation devices mainly capture wind energy in a single direction. However, in the process of practical application of wind energy, the wind direction is unstable and changeable, resulting in the capture efficiency of wind energy by energy capture devices. Low and inefficient use of wind energy for power generation. In this regard, we propose a tumbler-type nonlinear magnetic disturbance multi-wind-direction wind piezoelectric generator. By using the wind to make the cylindrical rigid body vibrate to a certain extent, the entire piezoelectric generator is driven to swing. At the same time, the cantilever beam will be The disturbance of the magnetic force produces nonlinear vibration, which finally causes the piezoelectric ceramic sheet pasted on the cantilever beam and the piezoelectric fiber layer on the inner wall of the tumbler stabilizer to have a positive piezoelectric effect to generate electrical energy. The device can capture wind energy in any direction in nature, well adapts to the action environment of natural wind, and greatly improves the utilization efficiency of wind energy.

SUMMARY OF THE INVENTION

In order to solve the limitation and inefficiency that the previous wind generator can only be excited by a single direction of wind to generate electricity, the present invention proposes a tumbler-type non-linear magnetic disturbance multi-wind direction wind piezoelectric generator.

The technical solution of the present invention is: a tumbler-type nonlinear magnetic disturbance multi-wind-direction wind piezoelectric power generation device, characterized in that: the device is composed of a cylindrical rigid body, a permanent magnet, a piezoelectric ceramic sheet, a cantilever beam, a cantilever clip, and a tumbler-type stable The rigid body is connected with the cantilever clip, and the cantilever beam is fixedly connected around the cantilever clip in a symmetrical distribution, and the cantilever beam is symmetrically distributed. The front end and upper and lower surfaces of the tumbler are respectively pasted with permanent magnets and piezoelectric ceramic sheets to form a magnetic vibration power generation part; the tumbler-type stabilizer is equipped with balance beads and placed on the base, and the wall of the tumbler-type stabilizer is pasted There is a layer of elastic fibers to form the collision power generation part; a ring magnet is fixed on the fixing frame, the fixing frame is connected with the base, and the piezoelectric power generation source is wrapped in it, so as to form the enclosure part of the device; the electric energy storage It is located in the center of the whole structure and fixed on the base, so as to form the electric energy storage part of the device; a number of power generating sources of the device are circularly arrayed on the base.

Further, the cantilever clips are circular four-port cantilever clips, and four cantilever beams are fixed on each four-port cantilever clips, and the included angles between the cantilever beams are 45 degrees and 135 degrees and are symmetrically distributed on two of the four-port cantilever clips. side.

Further, the cylindrical rigid body is fixed on the upper surface of the center of the four-port cantilever clamp, which is much higher than other components of the device, and is the main component of the device for capturing wind energy.

Further, the base is a cube, and there is a circular groove in the center of the base, and the depth of the groove is two-thirds of the height of the tumbler-type stabilizer.

Further, the fixing frame is a circumferential fixing frame, and the height of the fixing frame reaches the position of the root of the cylindrical rigid body. The fixing frame is divided into a large circumference fixing frame and a small circumference fixing frame, and the two fixing frames are respectively fixed on the inner and outer sides of the power generation source. .

Beneficial effects of the present invention: The present invention proposes a tumbler-type multi-wind-direction wind-driven piezoelectric generator with nonlinear magnetic disturbance, and the wind in any direction can give an excitation to the cylindrical rigid body, so that the cylindrical rigid body produces vortex-induced vibration to further drive the tumbler-type The stabilizer swings; the cantilever beams are symmetrically distributed on both sides of the cantilever clamp, and the tumbler-type stabilizer swings in any direction to cause the two cantilever beams to vibrate due to the action of magnetic repulsion, maximizing the use of magnetic vibration to generate electricity; the tumbler-type stabilizer The balance bead inside further utilizes the kinetic energy generated by the swing of the tumbler-type stabilizer to collide with the piezoelectric fiber layer to generate electricity; the grooves in the square base limit the swing of the generator, so that the generator will not be tilted excessively; electrical energy storage The high-efficiency energy recovery circuit inside can reduce the loss in the circuit during power recovery and improve the power recovery efficiency; this device arranges a single power generation source in a circular array to improve the energy conversion efficiency and total power generation of the entire device. It solves the limitation that the previous wind power generation device can only receive power from a single wind direction and the problem of low power generation efficiency of a single piezoelectric power generation device.

Description of drawings

Figure 1 is a three-dimensional schematic diagram of a power generation device.

Figure 2. Schematic diagram of a piezoelectric generator.

Figure 3 is a cross-sectional view of a piezoelectric generator.

Figure 4 is a schematic diagram of a piezoelectric vibrator.

Detailed ways

The specific embodiments of the device are further explained with reference to FIGS. 1 to 4. The tumbler-type nonlinear magnetic disturbance multi-wind-direction wind piezoelectric power generation device includes a cylindrical rigid body 1, a permanent magnet 2, a piezoelectric ceramic sheet 3, and a cantilever beam. 4. Four-port cantilever clamp 5, tumbler stabilizer 6, square base 7, circumferential fixing frame 8, ring magnet 9, base 10, electrical energy storage 11, piezoelectric fiber 12, balance bead 13; the piezoelectric ceramic sheet 3 It is pasted on the front and back sides of the cantilever beam 4 to form a piezoelectric vibrator, and the permanent magnet 2 is pasted on the front and back sides of the cantilever beam 4 to form a magnetic vibration power generation part together with the piezoelectric vibrator; the tumbler type stabilizer 6 is equipped with a balance The beads 13 and the wall surface of the tumbler-type stabilizer 6 are pasted with a layer of elastic fibers 12 to form a collision power generation part.

The specific embodiment of the magnetic vibration power generation part of the device is further explained in conjunction with FIG. 2 and FIG. 4. The cylindrical rigid body 1 is located at the top of the entire device to facilitate receiving wind excitation in any direction, and the cylindrical rigid body 1 can capture and convert wind energy in any direction. It is the vortex-induced vibration energy of the cylindrical rigid body 1, and the vortex-induced vibration energy generated by the cylindrical steel body 1 drives the tumbler-type stabilizer 6 to swing in the square base 7; the permanent magnet 2 is pasted on the positive and negative sides of the cantilever beam 4, When the tumbler type stabilizer 6 swings, the permanent magnet 2 and the ring magnet 9 on the circumferential fixing frame 8 cause the cantilever beam 4 to vibrate due to the action of magnetic repulsion; the piezoelectric ceramic sheet 3 is pasted on the front and back sides of the cantilever beam 4, The space on the cantilever beam 4 is fully utilized to maximize the power generation efficiency. When the cantilever beam 4 vibrates due to magnetic force, the piezoelectric ceramic sheet 3 pasted on the cantilever beam 4 will bend and deform due to the vibration of the cantilever beam 4 and generate positive pressure. Electric effect; the cantilever beam 4 is fixed on the four-port cantilever clamp 5, and the front end and the upper and lower surfaces of the cantilever beam 4 are respectively pasted with the piezoelectric ceramic sheet 3 and the permanent magnet 2, which constitute the main part of the magnetic vibration power generation. The four-port cantilever clamp 5 is a cylinder, and the four-port cantilever clamp 5 is seamlessly connected with the tumbler-type stabilizer 6, which effectively prevents dust and the like from entering the tumbler-type stabilizer 6. The four-port cantilever clamp 5 is located between the cylindrical rigid body 1 and the tumbler-type stabilizer. Between the stabilizers 6, it plays a role of connection, and four cantilever beams 4 are symmetrically fixed on the four-port cantilever clamp 5; In the semicircular groove of the base 7, when the cylindrical rigid body 1 is excited by the wind, it will drive the tumbler type stabilizer 6 to swing, thereby driving the entire device to shake from bottom to top; the square base 7 is a cube, and there is a circular shape in the center. The groove, the tumbler-type stabilizer 6 is placed in the square base 7, and the square base 7 has a fixed effect on the tumbler-type stabilizer 6, which limits the inclination of the tumbler-type stabilizer 6, so that the cantilever beam 4 is connected to the circumferential fixing frame 8 Always keep a certain distance.

The specific embodiment of the enclosure part of the device is further explained in conjunction with FIG. 1. The circumferential fixing frame 8 is respectively a large circumferential fixing frame and a small circumferential fixing frame. There is an electric energy storage 11 inside the fixing frame, and two rows of ring magnets 9 are fixed on the circumferential fixing frame 8. The height of the circumferential fixing frame 8 reaches the position of the root of the cylindrical rigid body 1, which will not prevent the cylindrical rigid body 1 from receiving excitation in any wind direction; Described ring magnet 9 is divided into upper and lower rings and is fixed on the circumference fixing frame 8, when the permanent magnet 2 on the cantilever beam 4 is close to the ring magnet 9, the ring magnet 9 will give the permanent magnet 2 a magnetic force to make the cantilever beam 4 generate nonlinear vibration, The distance between the two ring magnets 9 is sufficient for the cantilever beam 4 to vibrate freely therein; the base 10 is disc-shaped and is the basis of the entire device.

The specific embodiment of the electric energy storage part of the device is further explained with reference to FIG. 1 . The electric energy storage 11 is in the shape of a cube and is located in the middle of the small circumferential fixing frame 8 . Aggregate storage and power low-energy electronics.

The specific embodiment of the collision power generation part of the device is further explained with reference to FIG. 3. The piezoelectric fibers 12 are pasted on the inner wall of the tumbler-type stabilizer 6. When the tumbler-type stabilizer 6 swings, the balance beads 13 inside it will give piezoelectricity. A collision force of the fiber 12 causes the piezoelectric fiber 12 to deform and produce a positive piezoelectric effect; the balance bead 13 can roll in all directions, and when the tumbler-type stabilizer 6 swings, the balance bead 13 will be affected by the swing of the tumbler-type stabilizer 6. Scroll under influence.

Working principle: Under a certain wind speed, the wind in any direction excites the cylindrical rigid body 1, and the cylindrical rigid body 1 drives the tumbler stabilizer 6 to swing, and the swing of the tumbler stabilizer 6 makes the cantilever beam 4 on the four-port cantilever clamp 5 gradually move toward the circumference The fixed frame 8 is close to each other. When the distance is small enough, the cantilever beam 4 generates nonlinear vibration due to the magnetic force between the permanent magnet 2 and the ring magnet 9. At the same time, the piezoelectric ceramic sheet 3 is bent and deformed to produce a positive piezoelectric effect, generating electrical energy. When the permanent magnet 2 on the cantilever beam 4 reaches between the two ring magnets 9, the two ring magnets 9 will continuously give the permanent magnet 2 a magnetic repulsion force, so that the cantilever beam 4 repeats the bending-recovery-bending process. The electric ceramic sheet 3 is continuously deformed to generate a positive piezoelectric effect and output electric energy. The above process is the part of magnetic vibration power generation.

When the tumbler type stabilizer 6 swings, the balance beads 13 inside the tumbler type stabilizer 6 roll around and give a collision force to the piezoelectric fibers 12 on the inner wall of the tumbler type stabilizer 6, so that the piezoelectric fibers 12 are deformed and positive The piezoelectric effect generates electric energy. When the position of the balance bead 13 moves, the piezoelectric fiber 12 returns to its original state, and a positive piezoelectric effect occurs to generate electric energy. The above process is the collision power generation part.

Because the wind is time-varying, the magnetic force of the two ring magnets 9 to the permanent magnet 2 will not be equal and the device will reach a balanced state. There must be one ring magnet 9 that has a greater magnetic force on the permanent magnet 2 than the other, so this process will continue. As the cycle continues, the piezoelectric vibrator and the piezoelectric fiber 12 will continue to convert energy into electrical energy; the electrical energy generated by the piezoelectric generator is alternating current, so the alternating current must first be converted into direct current through the recovery circuit in the electrical energy storage 11 and then stored in In the electrical energy storage 11 , power is supplied to low-energy-consumption electronic products.

In the above-mentioned specific embodiment, a tumbler-type nonlinear magnetic disturbance multi-wind-direction wind piezoelectric generator has the advantage of being able to receive any wind direction, and the circular array solves the problem of low energy capture efficiency of a single piezoelectric generator, maximizing the The utility model utilizes wind resources, improves the power generation efficiency of wind power generation, and breaks the limitation that traditional wind power generation devices can only capture wind energy in a single direction. The device has simple structure, low cost and wide application range.

Claims (5)

1. The utility model provides a many wind directions wind-force piezoelectric power generation device of nonlinear magnetic disturbance of tumbler formula which characterized in that: the device consists of a cylindrical rigid body, a permanent magnet, a piezoelectric ceramic piece, a cantilever beam, a cantilever clamp, a tumbler-type stabilizer, a base, a fixing frame, an annular magnet, a substrate, an electric energy storage, piezoelectric fibers and balance beads; the rigid body is connected with the cantilever clamp, the cantilever beams are fixedly connected around the cantilever clamp and symmetrically distributed, and the front end of each cantilever beam is pasted with a permanent magnet and the upper and lower surfaces of each cantilever beam are pasted with piezoelectric ceramic plates so as to form a magnetic vibration power generation part; the tumbler type stabilizer is internally provided with balance beads and is placed on the base, and a layer of piezoelectric fibers is adhered to the wall surface of the tumbler type stabilizer to form a collision power generation part; the fixing frame is fixed with an annular magnet and connected with the substrate, and the power generation source is wrapped in the fixing frame to form a surrounding part of the device; the electric energy storage device is positioned at the center of the whole structure and is fixed on the substrate, so that an electric energy storage part of the device is formed; a plurality of circumferential array power generation sources are arranged on the substrate.

2. The tumbler-type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device according to claim 1, characterized in that: the cantilever clamp is a circular four-opening cantilever clamp, four cantilever beams are fixed on each four-opening cantilever clamp, and the included angle between the cantilever beams is 45 degrees and 135 degrees.

3. The tumbler-type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device according to claim 2, characterized in that: the cylindrical rigid body is fixed on the upper surface of the center of the four-opening cantilever clamp and is higher than other parts of the device.

4. The tumbler-type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device according to claim 1, characterized in that: the base is a cube, a circular groove is formed in the center of the base, and the depth of the groove is two thirds of the height of the tumbler-type stabilizer.

5. The tumbler-type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device according to claim 3, characterized in that: the fixing frame is a circumferential fixing frame, the height of the fixing frame reaches the root position of the cylindrical rigid body, and the two fixing frames are respectively fixed on the inner side and the outer side of the power generation source.

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