阅读说明：本技术 一种利用介电弹性体发电的波浪能发电机 (Wave energy generator utilizing dielectric elastomer to generate electricity ) 是由 韩冰峰 程敏 窦永香 刘振 于 2020-12-31 设计创作，主要内容包括：本发明提供一种利用介电弹性体发电的波浪能发电机,包括浮漂体、上介电发电单元、下介电发电单元、移动轴和阻尼板；所述阻尼板固定于所述移动轴下端部；所述上介电发电单元和所述下介电发电单元均由锥形介电弹性体和粘接于所述介电弹性体上的扇形电极组成；所述介电弹性体的底面固定于所述漂浮体的上下两侧；所述移动轴穿过所述介电弹性体和所述漂浮体,且与所述介电弹性体的顶部固定,与所述漂浮体滑动连接。本发明的技术方案解决了利用介电弹性体的波浪能发电机结构复杂,效率较低等问题。(The invention provides a wave energy generator for generating power by utilizing a dielectric elastomer, which comprises a floating body, an upper dielectric power generation unit, a lower dielectric power generation unit, a movable shaft and a damping plate, wherein the floating body is arranged on the upper dielectric power generation unit; the damping plate is fixed at the lower end part of the moving shaft; the upper dielectric power generation unit and the lower dielectric power generation unit are both composed of a conical dielectric elastomer and a sector electrode bonded on the dielectric elastomer; the bottom surface of the dielectric elastomer is fixed on the upper side and the lower side of the floating body; the moving shaft penetrates through the dielectric elastomer and the floating body, is fixed with the top of the dielectric elastomer and is connected with the floating body in a sliding mode. The technical scheme of the invention solves the problems of complex structure, low efficiency and the like of the wave energy generator utilizing the dielectric elastomer.)

1. A wave energy generator utilizing dielectric elastomers to generate electricity is characterized by comprising a float body, an upper dielectric electricity generating unit, a lower dielectric electricity generating unit, a moving shaft and a damping plate;

the damping plate is fixed at the lower end part of the moving shaft;

the upper dielectric power generation unit and the lower dielectric power generation unit are both composed of a conical dielectric elastomer and a sector electrode bonded on the dielectric elastomer;

the bottom surface of the dielectric elastomer is fixed on the upper side and the lower side of the floating body; the moving shaft penetrates through the dielectric elastomer and the floating body, is fixed with the top of the dielectric elastomer and is connected with the floating body in a sliding mode.

2. The wave energy generator for generating electricity from a dielectric elastomer according to claim 1, wherein the damping plate is fixed to the lower end portion of the moving shaft by bolts or welding.

3. The wave energy generator for generating electricity from a dielectric elastomer of claim 1, wherein the sector electrodes comprise a sector outer flexible electrode and a sector inner flexible electrode; the fan-shaped inner flexible electrode and the fan-shaped outer flexible electrode are respectively adhered to the inner side and the outer side of the dielectric elastomer through conductive adhesives.

4. The wave energy generator utilizing dielectric elastomers for power generation according to claim 1, characterized in that the outer surfaces of the upper and lower dielectric power generation units are sealed by covering with an insulating film or by covering with a flexible insulating material.

Technical Field

The invention relates to the field of wave energy power generation, in particular to a wave energy generator for generating power by utilizing a dielectric elastomer.

Background

Fossil energy is increasingly exhausted, and clean energy such as solar energy, wind energy, ocean energy and the like attracts attention. The ocean energy is widely distributed, is convenient to use and can provide huge energy. Wave energy is relatively stable energy and is one of the technically relatively mature ocean energies.

A dielectric elastomer is a point-active polymer that converts mechanical energy into electrical energy by deformation of the material. The traditional electromagnetic generating set is easy to damage, and the utilization of dielectric elastomer materials to obtain ocean energy is a better choice.

The research on the aspect of obtaining ocean energy by utilizing the dielectric elastomer material is less, and the main problem in the field is how to match the dielectric elastomer material with the wave energy device, so that the wave energy device is simpler and more efficient.

A floating type dielectric elastomer wave energy generator (publication number CN 109458290A). Disclosed is a floating dielectric elastomer wave energy generator, comprising: the waterproof outer shell surrounds the metal inner shell; the multi-layer stacked-dielectric elastomer conversion device is arranged on the inner side of the metal inner shell; the small spring is positioned between the multi-stack type-dielectric elastomer conversion device and the disc and is fixed on the inner side of the metal inner shell; the insulating rod penetrates through the waterproof outer shell, extends into the metal inner shell, and penetrates through the multi-layer stacked-dielectric elastomer conversion device to be connected with the disc; wherein, the top of the insulating rod is provided with a buoy; one end of the big spring is connected with the bottom of the disc, and the other end of the big spring is connected with the bottom of the inner side of the waterproof shell. The buoy fluctuates up and down along with waves, the insulating rod moves up and down along with the buoy, the multi-layer stacked-type dielectric elastomer conversion device is driven to stretch or contract up and down, direct current is generated, the direct current is charged into the storage battery, and ocean energy power generation is realized by utilizing the dielectric elastomer. The wave energy power generation device is mostly underwater, along with continuous extension and compression of the springs, the air tightness of the space where the power generation unit is located has great challenge, although the power generation capacity of the stacked dielectric elastic conversion device is high, the required direct acting force is great, the fixed end of the other end of the balance spring is fixed on the seabed, or a damping plate is utilized, if the other end of the balance spring is fixed on the seabed, the wave energy device becomes easy to damage, if the other end of the balance spring is fixed on the damping plate, the wave energy device has the problem of dynamic sealing in small water, and the service life of the wave device is greatly shortened.

The invention discloses an oscillating float type wave energy power generation device based on a dielectric elastomer, and belongs to the technical field of ocean energy power generation devices. The wave energy collecting structure comprises a floater and a connecting rod, the bottom of the connecting rod is connected with the floater, the top of the connecting rod is connected with a bowl-shaped piston of the high-pressure inflating mechanism, and in a use state, the floater fluctuates up and down or swings along with sea surface waves to enable the connecting rod to move, and the connecting rod further drives the bowl-shaped piston to move up and down; the bowl-shaped piston moves up and down to squeeze air and make the air flow into the gas energy storage mechanism; the dielectric elastomer power generation sleeve is connected with a small air cylinder of the gas drive reversing mechanism through a gas pipeline. The invention is easy to miniaturize, has low cost, has excellent electromechanical conversion characteristics, can continuously supply power for a long time and has high energy collection efficiency. According to the wave energy generation device, wave energy is collected by the wave energy device, the wave energy is converted into gas potential energy, then the gas is used for pushing the dielectric power generation unit to generate power, and the power generation efficiency is low in terms of energy conversion efficiency.

Disclosure of Invention

According to the technical problems that the existing wave energy generator utilizing the dielectric elastomer is complex in structure, low in efficiency and the like, the wave energy generator utilizing the dielectric elastomer for generating electricity is provided. The invention is mainly utilized.

The technical means adopted by the invention are as follows:

a wave energy generator utilizing dielectric elastomers to generate electricity comprises a floating body, an upper dielectric electricity generating unit, a lower dielectric electricity generating unit, a moving shaft and a damping plate;

the damping plate is fixed at the lower end part of the moving shaft;

the upper dielectric power generation unit and the lower dielectric power generation unit are both composed of a conical dielectric elastomer and a sector electrode bonded on the dielectric elastomer;

the bottom surface of the dielectric elastomer is fixed on the upper side and the lower side of the floating body; the moving shaft penetrates through the dielectric elastomer and the floating body, is fixed with the top of the dielectric elastomer and is connected with the floating body in a sliding mode.

Further, the damping plate is fixed to the lower end portion of the moving shaft by bolts or welding.

Further, the sector electrodes comprise sector outer flexible electrodes and sector inner flexible electrodes; the fan-shaped inner flexible electrode and the fan-shaped outer flexible electrode are respectively adhered to the inner side and the outer side of the dielectric elastomer through conductive adhesives.

Further, the outer surfaces of the upper dielectric power generation unit and the lower dielectric power generation unit are sealed by covering a layer of insulating film or covering flexible insulating material.

Compared with the prior art, the invention has the following advantages:

the wave energy generator utilizing the dielectric elastomer to generate electricity is provided with the damping plate type generating set, the double-dielectric elastomer adjusting device is utilized to adjust balance, the structure is simple, and the generating efficiency is high.

Based on the reason, the invention can be widely popularized in the fields of wave energy power generation and the like.

Drawings

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

Fig. 1 is a schematic structural diagram of a wave energy generator using a dielectric elastomer according to the present invention.

Fig. 2 is a schematic structural view of a dielectric power generation unit.

In the figure: 1. an upper dielectric power generation unit; 2. a float body; 3. a lower dielectric power generation unit; 4. a movable shaft; 5. a damping plate; 6. an outer flexible electrode; 7. an inner flexible electrode; 8. a dielectric elastomer.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

Example 1

As shown in fig. 1-2, the invention provides a wave energy generator using dielectric elastomer to generate electricity, comprising a floating body 2, an upper dielectric electricity generating unit 1, a lower dielectric electricity generating unit 3, a moving shaft 4 and a damping plate 5;

the damping plate 5 is fixed at the lower end part of the movable shaft 4;

the upper dielectric power generation unit 1 and the lower dielectric power generation unit 3 are both composed of a conical dielectric elastomer 8 and a sector electrode bonded on the dielectric elastomer 8;

the bottom surface of the dielectric elastomer 8 is fixed on the upper side and the lower side of the floating body 2; the moving shaft 4 passes through the dielectric elastomer 8 and the floating body 2, is fixed to the top of the dielectric elastomer 8, and is slidably connected to the floating body 2.

Further, the damping plate 5 is circular, and the damping plate 5 is fixed to the lower end portion of the movable shaft 4 by bolts or welding.

Further, the sector electrodes comprise a sector outer flexible electrode 6 and a sector inner flexible electrode 7; the fan-shaped inner flexible electrode 7 and the fan-shaped outer flexible electrode 6 are respectively adhered to the inner side and the outer side of the dielectric elastomer 8 through conductive adhesives.

Further, the outer surfaces of the upper dielectric power generation unit 1 and the lower dielectric power generation unit 3 are sealed by covering a layer of insulating film or covering a flexible insulating material, so that electric leakage is prevented.

Because the damping of water is bigger, consequently under the effect of wave, dielectric elastomer has micro-deformation under the effect of force, so the relative float body of removal axle also can produce micro-deformation, and then can reciprocate in the float body, leads to damping plate and float body also can produce relative motion, and the dielectric elastomer of upper and lower dielectric power generation unit has acted as the effect of balanced spring, maintains the relative balance of damping plate and float body. The flexible electrode continuously generates current along with the continuous stretching and compression of the dielectric elastomer, and the dielectric elastomer continuously converts ocean kinetic energy into electric energy when bias voltage is applied to external voltage. Energy can be provided for the ocean wireless sensor network node or a small electronic device through a basic bridge rectifier circuit and a super capacitor.

The invention utilizes the wave acting force to directly act on the conical dielectric elastomer, and compared with the scheme that the wave acting force is utilized in the prior art, the wave acting force is firstly converted into the compressed internal energy of gas, and then the gas is utilized to push the dielectric generator unit, the direct conversion efficiency is superior to the indirect conversion efficiency in terms of energy conversion efficiency, and the power generation unit not only serves as an energy generation module, but also serves as an elastic unit in terms of the structure of the power generation unit, so that the wave energy device can be coordinated to reciprocate at a balance position.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.