阅读说明：本技术 一种基于介电弹性体薄膜的风力发电装置 (Wind power generation device based on dielectric elastomer film ) 是由 余国晖 陈洁 于 2021-01-21 设计创作，主要内容包括：本发明公开了一种基于介电弹性体薄膜的风力发电装置,包括前端转体、风机叶片、发电转体、介电弹性体薄膜、支撑弹簧、支撑板、圆柱形重物、机壳、支撑塔柱、底座、电缆线、高压启动装置和电能收集装置；其中风力发电机的叶片与前端转体相连接,介电弹性体膜发电装置安装在叶片内部,每个叶片上有两个或者多个介电弹性体发电膜,圆柱形重物受重力影响在介电弹性体膜上产生压强,当风力发电机开始做圆周运动时,圆柱形重物带动介电弹性体膜做周期性的拉伸、收缩运动,所以能交替的从介电膜中获取能量；本发明具有质量轻,能量密度高,结构简单,成本低,易于维护等优点,同时发电装置内部的发电单元空间利用率高,发电效率也得到了进一步提高。(The invention discloses a wind power generation device based on a dielectric elastomer film, which comprises a front end rotator, a fan blade, a power generation rotator, the dielectric elastomer film, a supporting spring, a supporting plate, a cylindrical weight, a shell, a supporting tower column, a base, a cable, a high-voltage starting device and an electric energy collecting device, wherein the front end rotator is connected with the front end of the wind power generation rotator; the blades of the wind driven generator are connected with the front end rotating body, the dielectric elastomer film power generation device is installed inside the blades, two or more dielectric elastomer power generation films are arranged on each blade, the cylindrical weight is influenced by gravity to generate pressure on the dielectric elastomer films, and when the wind driven generator starts to do circular motion, the cylindrical weight drives the dielectric elastomer films to do periodic stretching and contracting motion, so that energy can be alternately obtained from the dielectric films; the invention has the advantages of light weight, high energy density, simple structure, low cost, easy maintenance and the like, and meanwhile, the space utilization rate of the power generation unit in the power generation device is high, and the power generation efficiency is further improved.)

1. A wind power generation device based on a dielectric elastomer film is characterized in that: the wind power generation device comprises a front end rotator, a fan blade, a power generation rotator, a dielectric elastomer film, a support spring, a support plate, a cylindrical weight, a shell, a support tower column, a base, a cable, a high-voltage starting device and an electric energy collecting device; the fan blade is arranged at the head end of the casing, the dielectric elastomer film, the supporting spring, the supporting plate and the cylindrical weight are arranged in the casing, the supporting tower column is supported at the bottom of the casing, the power generation rotating body is arranged between the casing and the supporting tower column, and the cable is connected between the dielectric elastomer film and the high-voltage starting circuit and the electric energy collecting device; blades of the wind driven generator are connected with the front end rotating body, the dielectric elastomer film power generation device is installed inside the blades, each blade is provided with two or more dielectric elastomer power generation films, and each dielectric elastomer film is externally connected with a cable so as to provide or output electric energy; the cylindrical weight is influenced by gravity to generate pressure on the dielectric elastomer film, so that the dielectric elastomer film B is in a stretching state, the dielectric elastomer film A is in a shrinking state, when wind blows through the wind driven generator and starts to do circular motion, the cylindrical weight drives the dielectric elastomer film to do periodic stretching and shrinking motion, and mutual conversion of mechanical energy and electric energy is realized by utilizing deformation of the dielectric elastomer material.

2. A dielectric elastomer film based wind power plant according to claim 1, wherein: the fan blade is connected with the front end rotating body, the fan is provided with 3 blades, two or more dielectric elastomer generating films are arranged in each blade, the dielectric elastomer films are connected with the cylindrical weight, the cylindrical weight and the supporting spring are fixedly connected with the supporting plate, the supporting plate is fixed in the shell, and the dielectric elastomer generating films are connected with the cable, the high-voltage starting circuit and the electric energy collecting device.

3. A dielectric elastomer film based wind power plant according to claim 2, wherein: the dielectric elastomer film is cylindrical, and the dielectric elastomer power generation film is connected with the cylindrical weight.

4. A dielectric elastomer film based wind power plant according to claim 2, wherein: the dielectric elastomer film A and the film B are in a reciprocal process, namely when the film A is in a contraction state, the film B is in a stretching state.

5. A dielectric elastomer film based wind power plant according to claim 2, wherein: the dielectric elastomer film and the cylindrical weight are fixedly connected to the supporting spring, and the gravity of the weight can be applied to the dielectric elastomer film along with the elastic potential energy of the spring during circular motion so as to enable the dielectric elastomer film to contract and stretch.

6. A dielectric elastomer film based wind power plant as claimed in claim 1, wherein: the fan blade is connected with the front end rotating body, and the power generation rotating body is fixedly connected between the casing and the supporting tower.

7. A dielectric elastomer film based wind power plant as claimed in claim 1, wherein: the casing is a sealed casing.

8. A dielectric elastomer film based wind power plant as claimed in claim 1, wherein: the bottom of the supporting tower is also provided with a base fixedly connected with the ground, the high-voltage starting circuit and the electric energy collecting device are arranged inside the base, and the cable is arranged inside the machine body.

Technical Field

The invention relates to the technical field of wind power generation, in particular to a wind power generation device based on a dielectric elastomer film.

Background

The wind energy is used as a renewable clean energy, a large amount of pollution can not be formed in practical application, the prime power of the wind energy is derived from wind, the environment protection degree is high, and the wind energy is inexhaustible. The wind driven generator taking wind energy as a prime power has unique advantages, and under the background of high-speed development of domestic electric power industry and shortage of energy, the generating efficiency of clean energy is increased in order to further improve the power supply structure and meet the requirements of energy conservation and emission reduction in China, so that wind power generation is in the strategy of energy development.

The dielectric elastomer is a super elastic insulating material, the upper surface and the lower surface of the film are coated with the upper electrode to generate electricity, and the electricity generation process is equivalent to variable capacitance. In recent years, due to the advantages of high energy density, large deformation, good electromechanical conversion efficiency, high response speed, smooth motion, zero noise and the like of the dielectric elastomer material, the energy collection of the dielectric elastomer is very suitable for wind power generation. Therefore, wind power generation based on dielectric elastomer materials has become one of hot spots of research for utilizing wind energy in various countries.

The dielectric elastomer power generation devices related to the prior patent of the invention are mostly provided with crank link mechanisms or eccentric wheel mechanisms by looking up related information, generally, the dielectric elastomer power generation units can only do linear reciprocating motion of stretching or compressing in a single direction in a certain plane, the space utilization rate of the power generation units in the power generator is not high, and the power generation efficiency is low.

Disclosure of Invention

The invention aims to provide a wind power generation device based on a dielectric elastomer film, which solves the problems in the prior art and has the advantages of simplicity, high efficiency, high space utilization rate, high power generation efficiency and the like.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a wind power generation device based on a dielectric elastomer film, which comprises a front end rotator, a fan blade, a power generation rotator, the dielectric elastomer film, a supporting spring, a supporting plate, a cylindrical weight, a shell, a supporting tower column, a base, a cable, a high-voltage starting device and an electric energy collecting device.

The fan blade is arranged at the head end of the casing, the dielectric elastomer film, the supporting spring, the supporting plate and the cylindrical weight are arranged inside the casing, the supporting tower column is supported at the bottom of the casing, the power generation rotating body is arranged between the casing and the supporting tower column, and the cable is connected between the dielectric elastomer film and the high-voltage starting circuit and between the high-voltage starting circuit and the electric energy collecting device.

Blades of the wind driven generator are connected with the front end rotating body, the dielectric elastomer film power generation device is installed inside the blades, each blade is provided with two or more dielectric elastomer power generation films, and each dielectric elastomer film is externally connected with a cable so as to provide or output electric energy; the cylindrical weight is influenced by gravity to generate pressure on the dielectric elastomer film, so that the dielectric elastomer film B is in a stretching state, the dielectric elastomer film A is in a shrinking state, when wind blows through the wind driven generator and starts to do circular motion, the cylindrical weight drives the dielectric elastomer film to do periodic stretching and shrinking motion, and mutual conversion of mechanical energy and electric energy is realized by utilizing deformation of the dielectric elastomer material.

Preferably, the fan blades are connected with the front end rotator, the fan has 3 blades, each blade is provided with two or more dielectric elastomer power generation films, the dielectric elastomer films are connected with the cylindrical weight, the cylindrical weight and the support spring are fixedly connected to the support plate, the support plate is fixed inside the casing, and the dielectric elastomer power generation films are connected with the cable, the high-voltage starting circuit and the electric energy collection device.

Preferably, the dielectric elastomer film power generation unit is in a ring shape, and the dielectric elastomer power generation film is connected with the cylindrical weight.

Preferably, the dielectric elastomer film a and the film B are in reverse processes, i.e., when the a film is in a contracted state, the B film is in a stretched state.

Preferably, the dielectric elastomer film and the cylindrical weight are fixedly connected to the supporting spring, and the gravity of the weight can be applied to the dielectric elastomer film along with the elastic potential energy of the spring during circular motion, so that the dielectric elastomer film contracts and stretches.

Preferably, the fan blade is connected with the front end rotator, and the power generation rotator is fixedly connected between the casing and the support tower.

Preferably, the housing is a sealed housing.

Preferably, the fan blades are three.

Preferably, the bottom of the support tower is further provided with a base fixedly connected with the ground, the high-voltage starting circuit and the electric energy collecting device are arranged inside the base, and the cable is arranged inside the machine body.

Compared with the prior art, the invention has the following beneficial technical effects:

the wind power generation device based on the dielectric elastomer film has the advantages of light weight, high energy density, simple structure, low cost, easiness in maintenance and the like, the requirement on wind speed is not high, the space utilization rate of a power generation unit in the power generation device is high, and the power generation efficiency is further improved. The application range is wider than that of a common wind driven generator.

Drawings

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

FIG. 1 is a schematic structural view of a wind turbine generator based on a dielectric elastomer film according to the present invention.

Fig. 2 is a view of the interior of a dielectric elastomer film-based wind power plant according to the present invention.

Fig. 3 is a schematic diagram of the power generation principle of the dielectric elastomer material of the present invention.

In the figure: 1 is a front end rotator; 2 is a fan blade; 3 is a windmill rotating shaft; 4 is a bearing seat; 5 is a transmission connecting rod; 6 is a power generation rotator; 3-1 is a rear end bearing seat; 7 is a shell; 8 is a revolving body; 9 is a cable wire; 10 is a supporting tower column; 11 is a high-voltage starting device and an electric energy collecting device thereof; 12 is a base; A. b is a dielectric elastomer power generation film; 13-1 and 13-2 are supporting springs; 14-1 and 14-2 are supporting plates; 15-1 and 15-2 are cylindrical weights.

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.

The invention aims to provide a wind power generation device based on a dielectric elastomer film, which aims to solve the problems in the prior art.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

The embodiment provides a wind power generation device based on a dielectric elastomer film, which comprises a front end rotator 1, fan blades 2/2-1/2-2, a windmill rotating shaft 3, a power generation rotator 6, A and B dielectric elastomer power generation films, a rotator 8, a cable 9, a support tower 10, a high-voltage starting device and power collection device 11, a base 12, a support spring 13 and a cylindrical weight 15, as shown in figure 1.

The wind turbine generator comprises a fan blade 2/2-1/2-2 arranged at the head end of a casing 7, a dielectric elastomer film A and a dielectric elastomer film B arranged inside the fan blade, a wind turbine rotating shaft 3/3-1 arranged inside the casing 7, a bearing seat 4, a transmission connecting rod 5 and a power generation rotator 6 also arranged inside the casing 7, a support tower 10 supported at the bottom of the casing 7 and connected to a rotator 8, and a cable 9 connected between the power generation rotator 6 and the dielectric elastomer power generation film A/B and then connected to a high-voltage starting device and an electric energy collecting device 11.

The fan blades 2 are arranged on the front end rotating body 1, the dielectric elastomer power generation films A and B arranged on each blade are smoothly connected to a cylindrical weight 15, the power generation rotating body 6 is driven to rotate to generate power when the fan blades rotate, the A and B power generation films do periodic stretching and shrinking motion along with the rotation of the fan blades due to the pressure of the cylindrical weight, the shape and the size of the A and B power generation films can be changed by applying certain voltage on the dielectric elastomer material under the pre-stretching condition, mechanical energy generated during the motion can be converted into electric energy, and therefore a power generation mode is carried out, and the purpose of converting wind energy and the mechanical energy into the electric energy is achieved.

In this embodiment, as shown in fig. 2, the dielectric elastomer film a and the dielectric elastomer film B are disposed inside the fan blades 2/2-1/2-2, for example, the cylindrical weight 15-1 in the fan blade 2 is connected to the dielectric elastomer power generation film B and the support spring 13-1, the cylindrical weight 15-2 is connected to the dielectric elastomer film a and the support spring 13-2, the support spring is fixed on the support plate 14, and the other two fan blades 2-1 and 2-2 are similarly disposed.

In this embodiment, the number of the dielectric elastomer power generation films can be set in the blade as required, in the specific power generation process, when the blade 2 passes through the highest point, the spring 13-1 is in the maximum stretching state, so that the gravity of the cylindrical weight is fully exerted on the dielectric elastomer film B, the dielectric elastomer film B is in the maximum stretching state, however, the spring 13-2 is in the contracting state, the dielectric elastomer film a and the cylindrical weight are smoothly connected, no gravity is exerted on the film a, so the dielectric elastomer film a is also in the contracting state, that is, the dielectric elastomer films a and B are a pair of reverse reaction processes, when the blade 2 passes through the lowest point, the spring 13-1 is in the contracting state, the dielectric elastomer film B is contracted from the maximum stretching state to the minimum state, and the dielectric elastomer film a is moved from the contracting state to the maximum stretching state, therefore, the two films complete a round of power generation process, namely when the blade rotates 360 degrees, the dielectric elastomer film completes two cycles of power generation process, and similarly, the dielectric elastomer film on the blade 2-1/2-2 also can be used, and the method is used for converting mechanical energy into electric energy, so that the power generation efficiency of the dielectric elastomer film and the utilization rate and power generation efficiency of a fan space are improved.

In this embodiment, the shape of the dielectric elastomer film power generation unit is a circular ring shape, which is easy to process and manufacture, and is not easy to damage when being stretched compared with other shapes, and the stretching ratio is larger than other shapes, so the power generation amount is larger than other shapes.

In this embodiment, the power generation process in the blade 2-1/2-2 is the same as the power generation process in the blade 2 described above.

In the embodiment, the windmill shaft 3 is connected with the front end rotor 1 and the bearing seat 4, and is connected with the power generation rotor 6 through the transmission connecting rod 5; the front end rotating body 1 in front of the fan blades is matched with the rotating body 8, so that the blades are always in the most appropriate wind direction, the stress of the wind driven generator is more stable, and the service life of the wind driven generator is longer.

In the embodiment, the wind driven generator is provided with three blades, so that the wind driven generator accords with the most appropriate mechanical condition, the comprehensive performance is optimal, and the wind energy utilization rate is high.

In this embodiment, the housing 7 is configured as a hermetic housing.

In this embodiment, the base 12 is fixed on the ground, the support tower 10 is supported on the base, and the high voltage starting device and the power collecting device are disposed in the base, so as to facilitate the maintenance and use.

In the invention, the motion state of the dielectric elastomer film is not only stretched or contracted in the same plane, but also stretched and contracted in space, namely the stretching ratio is larger than that of a common device, the power generation amount is larger than that of the common device, the utilization rate of the interior of the wind driven generator is improved, and the power generation efficiency is improved.

It is noted that the dielectric elastomer films a and B in the present invention may also take other shapes such as rectangular, conical, etc.

As shown in FIG. 3, the principles of power generation of the dielectric elastomer films A and B in the present invention are as follows: fig. 3(a) is a simple electromechanical conversion diagram, and the macroscopic process of electromechanical conversion of the dielectric elastomer can be intuitively explained. First, an external power source is applied to charge the dielectric elastomer film and is deformed by an external mechanical force, and then the power source is turned off and is restored to an initial state by its elastic restoring force, so that its capacitance value is reduced, a voltage value is increased, and the dielectric elastomer film is discharged to the outside. In an ideal state, the input mechanical energy is the electric energy added by the energy conversion unit. FIG. 3(b) is a microscopic energy conversion mechanism of the dielectric elastomer material.

The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.