CN111146852A - Telescopic dielectric elastomer energy acquisition device and application thereof - Google Patents
Telescopic dielectric elastomer energy acquisition device and application thereof Download PDFInfo
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- CN111146852A CN111146852A CN202010057258.0A CN202010057258A CN111146852A CN 111146852 A CN111146852 A CN 111146852A CN 202010057258 A CN202010057258 A CN 202010057258A CN 111146852 A CN111146852 A CN 111146852A
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- dielectric elastomer
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- variable capacitor
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- 229920002595 Dielectric elastomer Polymers 0.000 title claims abstract description 106
- 239000003990 capacitor Substances 0.000 claims description 80
- 238000003306 harvesting Methods 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 230000005284 excitation Effects 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000005684 electric field Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 39
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
Abstract
The application provides a telescopic dielectric elastomer energy collection system, including framework, flexible post, elastic support piece and two at least variable capacitance, be equipped with in the framework and contain the open-ended cavity, the opening is used for through flexible post, and the one end of flexible post is located the cavity, and elastic support piece's one end is fixed at flexible post one end, elastic support piece's the other end are fixed in the cavity bottom, and two at least variable capacitance are fixed on the cavity lateral wall along the axial interval of cavity, and every variable capacitance is including stacking gradually first electrode, dielectric elastomer layer and the second electrode that sets up, and two at least variable capacitance's dielectric elastomer layer all with flexible post fixed connection, when the axial reciprocating motion of cavity was followed to the optional position to flexible post, at least one variable capacitance's dielectric elastomer layer was in the deformation form. The device can convert displacement excitation into electric energy with high efficiency under the condition of an external electric field, and the electric energy output efficiency is high. The application also provides an application of the device.
Description
Technical Field
The application relates to the technical field of generators, in particular to a telescopic dielectric elastomer energy collecting device and application thereof.
Background
In recent years, energy has become a key factor for the sustainable development of modern society; meanwhile, with the progress of environmental awareness, effective utilization of various clean energy sources is receiving wide attention of society. The dielectric elastomer (dielectric elastomer) is a novel functional material and has the advantages of high energy density, large deformation range, low price, high electromechanical conversion efficiency and the like; under input voltage conditions, external stimuli cause deformation of the membrane and result in a change in capacitance, further converting mechanical energy into electrical energy. However, the existing energy collecting device based on the electric elastomer has the characteristics of low electric energy output efficiency, low energy output density and unstable output performance.
Disclosure of Invention
In order to solve the problems, the application provides a telescopic dielectric elastomer energy collecting device and application thereof. The telescopic dielectric elastomer energy acquisition device can efficiently convert displacement excitation in any form into electric energy under the condition of an external electric field, and the electric energy output efficiency is high.
Specifically, in a first aspect, the application provides a telescopic dielectric elastomer energy collection device, which comprises a frame body, a telescopic column, an elastic support part and at least two variable capacitors, wherein a cavity with an opening is arranged in the frame body, the opening is used for passing through the telescopic column, one end of the telescopic column is positioned in the cavity, one end of the elastic support part is fixed at the other end of the telescopic column, the other end of the elastic support part is fixed at the bottom of the cavity, the at least two variable capacitors are fixed on the side wall of the cavity along the axial interval of the cavity, each variable capacitor comprises a first electrode, a dielectric elastomer layer and a second electrode which are sequentially stacked, the dielectric elastomer layers of the at least two variable capacitors are fixedly connected with the telescopic column, and when the telescopic column moves to any position along the axial direction of the cavity, at least one of the dielectric elastomer layers of the variable capacitor is in a deformed state.
Optionally, the dielectric elastomer layer is provided with a conductive coating on both sides. The conductive coating may electrically connect the dielectric elastomer layer with the first electrode and the second electrode, respectively. The conductive coating includes a graphene coating.
Optionally, the at least two variable capacitance dielectric elastomer layers are differently positioned at different distances apart. So that when the telescopic column reciprocates to any position along the axial direction of the cavity, the dielectric elastomer layer of at least one variable capacitor is in a deformation state. The axial direction of the cavity here means the direction of the opening to the bottom of the cavity or the direction perpendicular to the surface of the bottom of the cavity.
Optionally, the at least two variable capacitors are arranged in parallel with the surface of the bottom of the cavity, the dielectric elastomer layer is provided with a fixing hole, the fixing hole is sleeved on the telescopic column, and the telescopic column drives the dielectric elastomer layer to move towards the direction away from the bottom of the cavity or towards the direction close to the bottom of the cavity.
Optionally, the at least two variable capacitors are disposed parallel to the bottom surface of the cavity, the dielectric elastomer layer is provided with a fixing hole, the fixing hole is sleeved on the telescopic column, and the telescopic column drives the dielectric elastomer layer to move in a direction away from the bottom of the cavity or in a direction close to the bottom of the cavity.
Optionally, the surface of the protruding portion is provided with an external thread, the inner wall of the groove portion is provided with an internal thread matched with the external thread, and two adjacent segmentation portions are screwed with each other.
Optionally, the elastic support member includes a support plate and an elastic member, the support plate is connected with a plurality of height adjusting bolts penetrating through the bottom of the cavity, the height adjusting bolts are used for adjusting the distance between the support plate and the surface of the bottom of the cavity, one end of the elastic member is fixed on the support plate, and the other end of the elastic member is fixed on the telescopic column.
Optionally, the resilient support comprises a spring or a leaf spring.
Optionally, the frame is assembled from a plurality of frame sections, the plurality of frame sections including an upper frame section, at least one middle frame section, and a lower frame section, and one variable capacitor is fixed between two adjacent frame sections.
Optionally, a plurality of bolt through holes are correspondingly formed in each of the plurality of frame body sections and the variable capacitor, and the frame body and the variable capacitor are fixed by a plurality of fixing bolts.
Optionally, the telescopic dielectric elastomer energy harvesting device further comprises a load assembly, the load assembly is electrically connected with the variable capacitor, and a voltage stabilizing diode is arranged between the load assembly and the variable capacitor.
According to the telescopic dielectric elastomer energy acquisition device in the first aspect of the application, under the condition of external electric connection pressure, the device can acquire any form of displacement excitation which can cause the telescopic column to perform reciprocating telescopic motion, and the telescopic column drives the dielectric elastomer layer of the variable capacitor to deform, so that the surface area is increased, the thickness is reduced and the capacitance is increased; when the dielectric elastomer layer of the variable capacitor is not deformed and the capacitor recovers the initial value, output electric energy can be generated to realize energy collection; meanwhile, at least two variable capacitors are arranged in the device, so that the at least two variable capacitors can output electric energy in turn, and the output efficiency of the electric energy is greatly improved. The telescopic dielectric elastomer energy acquisition device is simple, low in cost and suitable for large-scale production.
In a second aspect, the present application further provides the use of a telescopic dielectric elastomer energy harvesting device as described in the first aspect of the present application in an electrical apparatus. The electrical equipment is equipment which needs electric energy to improve kinetic energy. The telescopic dielectric elastomer energy acquisition device can acquire energy which generates displacement excitation in any form under external voltage and convert the energy into electric energy to be output; the telescopic dielectric elastomer energy acquisition device is high in electric energy output efficiency, high in energy output density of high density and stable in output performance.
The displacement excitation energy collected by the telescopic dielectric elastomer energy collection device has higher stability relative to wind energy, vibration energy and the like, so that the stability of output electric energy is improved. For example, the telescopic dielectric elastomer energy collection device can be widely applied to energy collection in the fields of roads, human body movement device components, vehicle shock absorbers and the like. The telescopic dielectric elastomer energy acquisition device has a wide application prospect in the field of related power generation.
Advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the embodiments of the present application.
Drawings
In order to more clearly explain the content of the present application, the following detailed description is given in conjunction with the accompanying drawings and specific embodiments.
FIG. 1 is a schematic cross-sectional view of a telescoping dielectric elastomer energy harvesting device 100 according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of a telescoping dielectric elastomer energy harvesting device 100 according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a variable capacitor according to an embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view of a telescoping dielectric elastomer energy harvesting device 200 according to another embodiment of the present application;
FIG. 5 is a schematic structural view of a telescoping dielectric elastomer energy harvesting device 200 according to another embodiment of the present application;
FIG. 6 is a schematic structural view of a telescoping column of a telescoping dielectric elastomer energy harvesting device according to an embodiment of the present application;
fig. 7 is a schematic cross-sectional view of a telescoping dielectric elastomer energy harvesting device 300 according to another embodiment of the present application.
Detailed Description
The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.
Referring to fig. 1 to fig. 3 together, a telescopic dielectric elastomer energy harvesting device 100 according to an embodiment of the present disclosure includes a frame 10, a telescopic column 20, an elastic support 30, and two variable capacitors 40, where the two variable capacitors 40 are a first variable capacitor 41 and a second variable capacitor 42, respectively; a cavity 12 with an opening 11 is arranged in the frame body 10, one end of the telescopic column 20 passes through the opening 11 and enters the cavity 12, one end of the elastic supporting member 30 is fixed to the one end of the telescopic column 20, the other end of the elastic supporting member 30 is fixed to the bottom 13 of the cavity 12, the telescopic column 20 is used for reciprocating and stretching along the axial direction of the cavity 12, the at least two variable capacitors 40 are fixed on the side wall of the cavity 12 at intervals along the axial direction of the cavity 12, each of the first variable capacitor 41 and the second variable capacitor 42 comprises a first electrode 401, a dielectric elastomer layer 402 and a second electrode 403 which are sequentially stacked, the dielectric elastomer layers 402 of all the variable capacitors 40 are fixedly connected with the telescopic column 20, when the telescopic column 20 reciprocates to any position along the axial direction of the cavity 12, the dielectric elastomer layer 402 of at least one of the variable capacitors 40 is in a deformed state.
In one embodiment, when the telescopic column 20 moves from a position far away from the bottom 13 of the cavity 12 to a position near the bottom 13 of the cavity 12, the dielectric elastomer layer of the first variable capacitor 41 changes from a non-deformed state to a deformed state, and the dielectric elastomer layer of the second variable capacitor 42 changes from a deformed state to a non-deformed state.
Fig. 1 shows the telescopic column 20 at a position away from the bottom 13 of the cavity 12, where the dielectric elastomer layer of the first variable capacitor 41 is in a deformed state; the dielectric elastomer layer of the second variable capacitor 42 is in an initial state and is not deformed. Fig. 2 shows the telescopic column 20 at a position close to the bottom 13 of the cavity 12, where the dielectric elastomer layer of the first variable capacitor 41 is restored to the original state and is not deformed; while the dielectric elastomer layer of the second variable capacitor 42 is in a deformed state.
In the embodiment of the application, the telescopic dielectric elastomer energy acquisition device can acquire any form of displacement excitation which can cause the telescopic column to perform reciprocating telescopic motion under the condition of external electric pressure, and the telescopic column drives the dielectric elastomer layer of the variable capacitor to deform, so that the surface area is increased, the thickness is reduced and the capacitance is increased; when the dielectric elastomer layer of the variable capacitor is not deformed and the capacitor recovers the initial value, output electric energy can be generated to realize energy collection; meanwhile, at least two variable capacitors are arranged in the device, so that the at least two variable capacitors can output electric energy in turn, and the output efficiency of the electric energy is greatly improved.
In the embodiment of the present application, the first variable capacitor 41 and the second variable capacitor 42 are disposed in parallel, and are disposed in parallel with the surface of the bottom 13 of the cavity 12. Referring to fig. 3, a through hole 404 is disposed in the center of the surface of each of the first electrode 401 and the second electrode 403 for the telescopic column 20 to freely pass through, the dielectric elastomer layer 402 has a fixing hole 405, the fixing hole 50 is used to be sleeved on the telescopic column 20, and the telescopic column 20 drives the dielectric elastomer layer 402 to move towards a direction away from the bottom 13 of the cavity 12 or a direction close to the bottom 13 of the cavity 12 to form a connection port 406 for electrical connection. In one embodiment, an external power source and the first variable capacitor or the second variable capacitor are provided for energizing the first variable capacitor or the second variable capacitor in the initial state.
Alternatively, the cross-sectional shape of the cavity in a direction parallel to the bottom surface of the cavity may be, but is not limited to, circular, rectangular, triangular, or polygonal. The polygon described herein may be a polygon having a number of sides in the range of 5-15. Optionally, the cross-sectional shape of the variable capacitance 40 corresponds to the cross-sectional shape of the cavity in a direction parallel to the bottom surface of the cavity. In the embodiment of the application, the orthographic projection of the variable capacitor on the bottom surface of the cavity can cover the bottom surface of the whole cavity, the dielectric elastomer layer of the variable capacitor is correspondingly disc-shaped, and the structure can improve the relative change of the capacitance of the dielectric elastomer under the same deformation, so that the energy output density of the dielectric elastomer is improved; on the other hand, this structure facilitates the variable capacitor to be more firmly fixed to the cavity side wall.
In the present embodiment, the two variable capacitors 40 may be, but are not limited to, fixed on the sidewall surface of the cavity 12 by bonding or bolt fixing, or fixed on the sidewall of the cavity by embedding, or sandwiched between the sidewalls of the cavity. In one embodiment, the variable capacitor is parallel to the bottom surface of the cavity, and an adhesive layer is disposed between the peripheral sidewall of the variable capacitor 40 and the cavity sidewall, through which the variable capacitor is adhered to the inner sidewall of the cavity. In another embodiment, the cavity side wall is provided with at least two circles of grooves parallel to the bottom surface, each variable capacitor corresponds to one circle of grooves, the thickness of the peripheral edge of each variable capacitor is matched with the width of each groove, and the peripheral edge of each variable capacitor is embedded into each groove to fix the variable capacitor. In a third embodiment, the variable capacitor is provided with a plurality of fixing connection portions, each fixing connection portion includes a plurality of bolt through holes, and the variable capacitor is fixed on the side wall of the cavity in a fixing bolt manner.
Optionally, the frame is assembled from a plurality of frame sections, the plurality of frame sections including an upper frame section, at least one middle frame section, and a lower frame section, and one variable capacitor is fixed between two adjacent frame sections. Referring to fig. 3, 4 and 5 together, a telescopic dielectric elastomer energy harvesting device 200 according to an embodiment of the present invention is different from the telescopic dielectric elastomer energy harvesting device 100 in that the frame 10 is formed by assembling 3 frame parts, namely, an upper frame part 101, a middle frame part 102 and a lower frame part 103, wherein the first variable capacitor 41 is fixed between the upper frame part 101 and the middle frame part 102; second variable capacitor 42 is fixed between middle housing unit 102 and lower housing unit 103. The upper housing part 101, the middle housing part 102, and the lower housing part 103 are each provided with a plurality of bolt through holes 105, and the variable capacitor 40 is also provided with a plurality of bolt through holes 407. The upper frame portion 101, the middle frame portion 102, the lower frame portion 103, and the variable capacitor 40 are fixed to each other by a plurality of fixing bolts.
In the embodiment of the application, the telescopic column comprises at least three segment parts which are connected in sequence, wherein any two adjacent segment parts are provided with a protruding part and a groove part which are matched with each other respectively, the dielectric elastomer layer is sleeved on the protruding part through the fixing hole, the two adjacent segment parts are clamped and connected through the protruding part and the groove part, so that the dielectric elastomer layer is clamped and arranged between the two adjacent segment parts. Referring to fig. 6, the telescopic column 20 includes a first segment 21, a second segment 22 and a third segment 23 connected in sequence, wherein a groove portion 211 is provided on an end surface of the first segment 21 close to the second segment 22, a protrusion 221 is provided on an end surface of the second segment 22 close to the first segment 22, the protrusion 221 and the groove portion 211 are matched, and a fixing hole of the dielectric elastomer layer is sleeved on the protrusion 221; the first and second segments 21 and 22 may sandwich a single variable capacitance dielectric elastomer layer in the manner described above. Alternatively, the surface of the protruding portion 221 is provided with an external thread, the inner wall of the groove portion 211 is provided with an internal thread matching the external thread on the surface of the protruding portion 221, and the first section 21 and the second section 22 can be screwed together. Accordingly, the connection between the second segment 22 and the third segment 23 may be achieved in the above manner, and a single variable capacitance dielectric elastomer layer may be fixed.
In the embodiment of the present application, the elastic support may include, but is not limited to, a spring or a leaf spring; the elastic support may further include a support plate and an elastic member. Referring to fig. 7, the telescopic dielectric elastomer energy harvesting device 300 according to an embodiment of the present application is different from the telescopic dielectric elastomer energy harvesting device 200 in that the elastic support member 30 includes a support plate 301 and an elastic member 302, the support plate 301 is connected to a plurality of height adjusting bolts 303 penetrating through the bottom of the cavity, the height adjusting bolts 303 are used for adjusting the distance between the support plate 301 and the surface of the bottom 13 of the cavity 12, one end of the elastic member 302 is fixed on the support plate 301, and the other end of the elastic member 302 is fixed on the telescopic column 20. This application elastic support piece can utilize height-adjusting bolt to adjust the initial deformation degree on variable capacitance's dielectric elastomer layer, is favorable to accelerating the mode that telescopic dielectric elastomer energy harvesting device system resumes.
In the embodiment of the application, the telescopic dielectric elastomer energy collecting device further comprises a load assembly, the load assembly is electrically connected with the variable capacitor, and a voltage stabilizing diode is arranged between the load assembly and the variable capacitor. The load assembly comprises an electrical element connected in a circuit and can work by utilizing the electric energy converted by the telescopic dielectric elastomer wind energy collecting device. For example, the load component may be, but is not limited to, an energy storage component or a consumer electronic device.
In the embodiment of the application, the frame body of the telescopic dielectric elastomer energy collecting device can be made of a hard material; in one embodiment, the frame may be made of metal, and the surface of the frame may be coated with an insulating coating.
In the embodiment of the present application, a conductive coating is disposed between the first electrode 401 and the dielectric elastomer layer 402, and a conductive coating is disposed between the second electrode 403 and the dielectric elastomer layer 402, and the conductive coating is made of graphene. By providing a conductive coating between the first electrode 401 or the second electrode 403 and the dielectric elastomer layer 402, the conductivity between the electrodes and the dielectric elastomer layer can be increased, and the performance of the entire variable capacitor can be further improved.
In this embodiment, the first electrode 401 and the second electrode 403 may be made of a conductive metal, for example, the first electrode 401 and the second electrode 403 may be both copper sheets.
In the embodiment of the application, the size of the telescopic dielectric elastomer energy collection device and the number of the variable capacitors can influence the rated power which can be provided by the telescopic dielectric elastomer energy collection device; meanwhile, a plurality of the telescopic dielectric elastomer energy collecting devices can work in a combined mode. In this embodiment, the specific size of the telescopic dielectric elastomer energy harvesting device and the number of the variable capacitors can be adjusted according to actual requirements, and this embodiment is not limited too much.
The existing device based on the dielectric elastomer generally has the defects of incapability of being directly applied to displacement excitation energy collection, unstable output performance, low energy output density and low efficiency. The telescopic dielectric elastomer energy collector provided by the embodiment of the application can realize the alternate discharge work of more than two variable capacitors containing dielectric elastomer layers, so that the output efficiency of electric energy is improved; and the structure utilizes the disc-shaped dielectric elastomer layer film structure to improve the relative change of the capacitance of the dielectric elastomer under the same deformation, thereby improving the energy output density of the dielectric elastomer. The displacement excitation energy collected by the telescopic dielectric elastomer energy collecting device has higher stability compared with wind energy, vibration energy and the like, so that the stability of output electric energy is improved. For example, the telescopic dielectric elastomer energy collection device can be widely applied to energy collection in the fields of roads, human body movement device components, vehicle shock absorbers and the like.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A telescopic dielectric elastomer energy collecting device is characterized by comprising a frame body, a telescopic column, an elastic supporting piece and at least two variable capacitors, wherein a cavity with an opening is arranged in the frame body, the opening is used for passing through the telescopic column, one end of the telescopic column is positioned in the cavity, one end of the elastic supporting piece is fixed at one end of the telescopic column, the other end of the elastic supporting piece is fixed at the bottom of the cavity, the at least two variable capacitors are fixed on the side wall of the cavity at an axial interval, each variable capacitor comprises a first electrode, a dielectric elastomer layer and a second electrode which are sequentially stacked, the dielectric elastomer layers of the at least two variable capacitors are fixedly connected with the telescopic column, and when the telescopic column reciprocates to any position along the axial direction of the cavity, at least one of the dielectric elastomer layers of the variable capacitor is in a deformed state.
2. The telescoping dielectric elastomer energy harvesting device of claim 1, wherein the at least two variable capacitance dielectric elastomer layers are positioned at different distances apart.
3. The retractable dielectric elastomer energy harvesting device of claim 1, wherein the at least two variable capacitors are disposed parallel to the bottom surface of the cavity, and the dielectric elastomer layer has a fixing hole, and the fixing hole is disposed on the retractable post, and the retractable post drives the dielectric elastomer layer to move in a direction away from the bottom of the cavity or in a direction close to the bottom of the cavity.
4. The retractable dielectric elastomer energy harvesting device according to claim 3, wherein the retractable column includes at least three segment portions connected in series, the end surfaces of any two adjacent segment portions contacting each other are respectively provided with a protrusion portion and a groove portion which are engaged with each other, the dielectric elastomer layer is sleeved on the protrusion portion through the fixing hole, and two adjacent segment portions are engaged with each other through the protrusion portion and the groove portion, so that the dielectric elastomer layer is sandwiched between two adjacent segment portions.
5. The telescopic dielectric elastomer energy harvesting device of claim 1, wherein the elastic support member comprises a support plate and an elastic member, the support plate is connected with a plurality of height adjustment bolts penetrating through the bottom of the cavity, the height adjustment bolts are used for adjusting the distance between the support plate and the bottom surface of the cavity, one end of the elastic member is fixed on the support plate, and the other end of the elastic member is fixed on the telescopic column.
6. The telescoping dielectric elastomer energy harvesting device of claim 1, wherein the elastic support comprises a spring or a leaf spring.
7. The retractable dielectric elastomer energy harvesting device of claim 1, wherein the frame is assembled from a plurality of frame sections, the plurality of frame sections including an upper frame section, at least one middle frame section, and a lower frame section, and wherein one of the variable capacitors is fixed between two adjacent frame sections.
8. The retractable dielectric elastomer energy harvesting device of claim 7, wherein the plurality of frame sections and the variable capacitor are each provided with a plurality of bolt through holes, and the frame and the variable capacitor are secured by a plurality of fixing bolts.
9. The retractable dielectric elastomer energy harvesting device of claim 1, further comprising a load assembly electrically connected to the variable capacitor, wherein a zener diode is disposed between the load assembly and the variable capacitor.
10. Use of the telescopic dielectric elastomer energy harvesting device of any one of claims 1-9 in an electrical apparatus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010057258.0A CN111146852A (en) | 2020-01-17 | 2020-01-17 | Telescopic dielectric elastomer energy acquisition device and application thereof |
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| CN202010057258.0A CN111146852A (en) | 2020-01-17 | 2020-01-17 | Telescopic dielectric elastomer energy acquisition device and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644801A (en) * | 2021-06-25 | 2021-11-12 | 浙江大学 | Vibration energy collecting device and method of underwater hydraulic system based on dielectric elastomer |
| CN114977887A (en) * | 2022-06-30 | 2022-08-30 | 深圳大学 | Composite medium type electrostatic energy acquisition device |
| WO2023097777A1 (en) * | 2021-12-02 | 2023-06-08 | 中国科学院深圳先进技术研究院 | Flexible driving apparatus |
-
2020
- 2020-01-17 CN CN202010057258.0A patent/CN111146852A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644801A (en) * | 2021-06-25 | 2021-11-12 | 浙江大学 | Vibration energy collecting device and method of underwater hydraulic system based on dielectric elastomer |
| WO2023097777A1 (en) * | 2021-12-02 | 2023-06-08 | 中国科学院深圳先进技术研究院 | Flexible driving apparatus |
| CN114977887A (en) * | 2022-06-30 | 2022-08-30 | 深圳大学 | Composite medium type electrostatic energy acquisition device |
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