CN113514719B - Magnetic vibration piezoelectric combined triboelectric energy collection testing system and method thereof - Google Patents
Magnetic vibration piezoelectric combined triboelectric energy collection testing system and method thereof Download PDFInfo
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- CN113514719B CN113514719B CN202110614669.XA CN202110614669A CN113514719B CN 113514719 B CN113514719 B CN 113514719B CN 202110614669 A CN202110614669 A CN 202110614669A CN 113514719 B CN113514719 B CN 113514719B
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910052802 copper Inorganic materials 0.000 claims abstract description 55
- 239000010949 copper Substances 0.000 claims abstract description 55
- 239000000725 suspension Substances 0.000 claims abstract description 39
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims description 8
- 239000003989 dielectric material Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000003306 harvesting Methods 0.000 claims description 4
- 229920005372 Plexiglas® Polymers 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 7
- 239000004642 Polyimide Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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- 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
- H02N2/186—Vibration harvesters
Abstract
The invention discloses an energy collection test system and method combining magneto-vibration piezoelectricity with triboelectricity, wherein the system comprises a vibration exciter, a driving plate, a driven plate and a processor, wherein the vibration exciter is used for outputting vibration frequency to the driving plate; the driving board is connected with a first suspension copper sheet and a second suspension copper sheet through vertical arms at two ends, the first suspension copper sheet and the second suspension copper sheet are provided with a first driving side magnet and a second driving side magnet which are axially corresponding, the first suspension copper sheet and/or the second suspension copper sheet are connected with piezoelectric fiber sheets capable of forming a piezoelectric energy loop, and a driving side electrode assembly is arranged on the surface of a groove between the vertical arms at two ends; the driven plate is arranged in the driving plate type groove in a sliding manner, driven side magnets which can axially correspond to the first driving side magnets and the second driving side magnets are arranged on the driven plate, the driven side magnets are in repulsive fit with the first driving side magnets and the second driving side magnets, and driven side electrode assemblies which can form a friction electric energy loop with the driving side electrode assemblies are arranged on the surface of the driven plate matched with the driving plate; the processor is used to collect voltage wave data for the piezoelectric and triboelectric energy circuits.
Description
Technical Field
The invention relates to a test technology of vibration energy collection efficiency, in particular to an energy collection test system and a test method of magnetocaloric vibration piezoelectric combined triboelectricity.
Background
Vibration energy is a form of energy that exists in a wide range, so to speak, the source of vibration is ubiquitous. A common collection format for converting mechanical vibration into electrical energy is piezoelectric, it is more commonly used in vibration energy harvesting of wind power.
The efficiency of the collection of vibration energy depends on the form of collection suitable for the frequency of vibration. Therefore, the research of the influence of the vibration frequency on the collection efficiency of the collection form is a key for researching the vibration energy collection technology, and has a general meaning.
Among the disclosed techniques, there are disclosed how to design the collection technique, without considering the influence of the vibration frequency on the collection efficiency of the collection form, and at least the techniques related to the present application have not been disclosed so far.
Disclosure of Invention
The technical purpose of the invention is that: aiming at the particularity of the vibration energy collection technology, an energy collection test system and a test method for combining the magneto vibration piezoelectricity with the triboelectricity, which can obtain the influence of the vibration frequency on the piezoelectric collection efficiency and the friction collection efficiency, are independently developed.
The technical aim of the invention is achieved by the following technical scheme, namely an energy collection testing system combining magneto-vibration piezoelectricity with triboelectricity, which comprises the following components:
-a vibration exciter for outputting a vibration frequency required for the test;
-an active plate mounted on the exciter; the two ends of the length direction of the driving plate are provided with a first vertical arm and a second vertical arm which are formed by protruding at the same side, the first vertical arm is connected with a first suspension copper sheet with one end in a suspended state, the first suspension copper sheet is provided with a first driving side magnet, the second vertical arm is connected with a second suspension copper sheet with one end in a suspended state, the second suspension copper sheet is provided with a second driving side magnet, and the first driving side magnet and the second driving side magnet are in axial corresponding fit; the first suspension copper sheet and/or the second suspension copper sheet are/is connected with corresponding piezoelectric fiber sheets, and the piezoelectric fiber sheets and corresponding external resistors form a piezoelectric energy loop; an active side electrode assembly is arranged on the surface of the active plate type groove between the first vertical arm and the second vertical arm;
-a driven plate fitted in a groove of the driving plate in such a manner as to be capable of sliding displacement along a length direction of the driving plate, the driven plate being fitted thereon with driven side magnets capable of forming axial correspondence with first and second driving side magnets on the driving plate, and the driven side magnets being held in homopolar repulsive engagement with the first and second driving side magnets; the surface of the driven plate facing the driving plate is provided with a driven side electrode assembly, and the driven side electrode assembly, the driving side electrode assembly and the corresponding external resistor form a friction electric energy loop;
-a processor for collecting voltage wave data of the piezoelectric energy circuit and the triboelectric energy circuit.
As one of the preferred schemes, a plurality of guide wheels are respectively arranged on two sides of the width direction of the driving plate along the length direction, corresponding to the guide wheels, the driven plate is provided with a U-shaped structure guide groove for the guide wheels on two sides of the width direction of the driving plate to correspondingly penetrate, and the driven plate is assembled in the groove of the driving plate through sliding fit of the guide groove and the guide wheels.
As one of the preferable schemes, a first vertical arm of the driving plate is formed at one corner of the corresponding end part of the driving plate in a protruding mode, one end of a first copper suspension sheet connected with the first vertical arm extends along the width direction of the driving plate, and the extending section is in a suspended state; the second vertical arm of the driving plate is formed at one corner of the corresponding end part of the driving plate in a protruding mode, one end of the second copper suspension sheet connected with the second vertical arm extends along the width direction of the driving plate, and the extending section is in a suspended state. Further, a first boss formed along the width direction is arranged at the end part of the driving plate corresponding to the first vertical arm, the first boss is in L-shaped fit with the first vertical arm, and the space above the first boss is the vibration space of the first copper suspension sheet; and/or, the end part of the driving plate corresponding to the second vertical arm is provided with a second boss formed along the width direction, the second boss is in L-shaped fit with the second vertical arm, and the space above the second boss is the vibration space of the second suspended copper sheet. The first vertical arm and the second vertical arm on the driving plate are in a diagonal arrangement structure.
As one of the preferable schemes, the first suspension copper sheet is connected with a first piezoelectric fiber sheet, the second suspension copper sheet is connected with a second piezoelectric fiber sheet, and the first piezoelectric fiber sheet and the second piezoelectric fiber sheet form central symmetry fit on the active plate.
As one of preferable embodiments, the driving substrate of the driving plate and the driven substrate of the driven plate are respectively molded in plexiglass.
As one of preferred embodiments, the driven side electrode assembly is mainly composed of a copper sheet and a dielectric material disposed on a surface of the copper sheet.
As one of preferred embodiments, the active side electrode assembly is mainly composed of a copper sheet and a dielectric material disposed on a surface of the copper sheet.
The testing method of the magnetic vibration piezoelectric combined triboelectric energy collection testing system comprises the following steps:
step 1, according to test requirements, various different vibration frequencies required to be output by the vibration exciter are drawn up;
step 2, starting the vibration exciter, driving the driven plate to vibrate by the vibrating driving plate, and enabling the driven side magnet on the driven plate to be in homopolar repulsion fit with the first driving side magnet and the second driving side magnet on the driving plate, so that the driven plate slides back and forth on the driving plate;
step 3, according to the vibration frequency sequence planned in the step 1, selecting one of the vibration frequencies to adjust the vibration exciter, so that the reciprocating sliding of the driven plate on the driving plate is carried out according to the set vibration frequency;
step 4, collecting and storing voltage wave data of the piezoelectric energy loop and the friction electric energy loop by the processor after the reciprocating sliding of the driven plate on the driving plate in the step 3 tends to be stable;
step 5, repeating the step 3 and the step 4 until the test of the vibration frequency planned in the step 1 is completed;
and 6, analyzing piezoelectric energy data and friction electric energy data corresponding to different vibration frequency states.
The beneficial technical effects of the invention are as follows: the technical measures aim at the particularity of the vibration energy collection technology, and the direct influence of the vibration frequency on the piezoelectric type collection efficiency and the friction type collection efficiency can be effectively obtained, so that the piezoelectric type and the friction type can be reliably guided to be applied to the vibration energy collection technology in different working condition environments, and the vibration energy collection efficiency is maximized as much as possible.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention.
Fig. 3 is a schematic view of the driven plate structure in fig. 2.
Fig. 4 is an orthographic view of the driven plate of fig. 3 in a top view.
Fig. 5 is a schematic view of the active plate structure in fig. 2.
The meaning of the symbols in the figures: 1-a driven plate; 11-a driven substrate; 12-a driven side magnet; 13-a guide groove; 14-driven side electrode assembly; 2-an active plate; 21-an active substrate; 22-a first vertical arm; 23-a first active side magnet; 24-a first piezoelectric fiber sheet; 25-a first suspended copper sheet; 26-a second vertical arm; 27-a second active side magnet; 28-a second piezoelectric fiber sheet; 29-a second suspended copper sheet; 210—a guide wheel; 211—active side electrode assembly; 3-a vibration exciter; 4-a processor; 5-a first piezoelectric energy circuit; 6-a friction electric energy loop; 7-a second piezoelectric energy loop.
Detailed Description
The invention relates to a vibration power generation testing technology, in particular to a magneto-vibration piezoelectric combined triboelectric energy collection testing system and a testing method, and the main technical content of the invention is described in detail by a plurality of embodiments. Wherein, embodiment 1 is combined with the attached drawings of the specification, namely, fig. 1, fig. 2, fig. 3 and fig. 4 to clearly and specifically explain the technical scheme of the invention; other embodiments, although not drawn separately, may still refer to the drawings of embodiment 1 for its main structure.
It is to be noted here in particular that the figures of the invention are schematic, which for the sake of clarity have simplified unnecessary details in order to avoid obscuring the technical solutions of the invention which contribute to the state of the art.
Example 1
Referring to fig. 1, 2, 3 and 4, the invention is an energy collection testing system combining magneto-vibration piezoelectricity with triboelectricity, which comprises a vibration exciter 3, a driving plate 2, a driven plate 1 and a processor 4.
Specifically, the vibration exciter 3 serves as a vibration source for the test, and outputs a vibration frequency required for the test to the active plate 2. The bottom surface of the driving plate 2 is set to be connected with the vibration exciter 3, that is, the driving plate 2 is mounted on the vibration exciter 3 through the bottom surface.
The active plate 2 has an active substrate 21 made of organic glass, and the active substrate 21 has a rectangular plate structure. One end of the length direction of the driving plate 2 is provided with a first vertical arm 22 which is bent and formed towards the top side surface, and the other end of the length direction of the driving plate 2 is provided with a second vertical arm 25 which is bent and formed towards the top side surface; the first vertical arm 22 is formed at one corner of the corresponding end part of the driving plate 2 in a protruding manner, meanwhile, a first boss formed along the width direction is arranged at the end part of the driving plate 2 corresponding to the first vertical arm 22, and the first boss is matched with the first vertical arm 22 in an L-shaped manner in the height direction; the second vertical arm 26 is formed at a corner of the corresponding end of the driving plate 2 in a protruding manner, and is arranged diagonally to the first vertical arm 22, and meanwhile, a second boss formed along the width direction is arranged at the end of the driving plate 2 corresponding to the second vertical arm 26, and the second boss is matched with the second vertical arm 26 in an L-shaped manner in the height direction. Namely, the first standing arm 22 and the second standing arm 26 are bent and raised in the direction of the top surface of the driving plate 2, and the outline of the whole driving plate 2 is shaped likeType (2).
The inner side of the first vertical arm 22 of the driving plate 2 (i.e. the side facing or adjacent to the slot between the first vertical arm 22 and the second vertical arm 26 of the driving plate 2) is connected with a first suspended copper sheet 25, the non-fixed end of the first suspended copper sheet 25 extends in the space above the first boss along the width direction of the driving plate, and the extending section is in a suspended state, so that the first suspended copper sheet 25 can be ensured to swing freely in vibration and magnetic force fit, and can be ensured to be stably connected on the first vertical arm 22 and be prevented from sagging and falling off in the vibration process; the first suspension sheet 25 extends over the first standing arm 22 beyond at least the widthwise center of the active plate 2. The first copper suspension sheet 25 is provided with a first active side magnet 23 facing one side of the type-slot space of the active plate 2 at a position corresponding to the width center of the active plate 2. A first piezoelectric fiber piece 24 is connected to a first suspension piece 25 between the first driving side magnet 23 and the first standing arm 22 by a screw or the like.
The second copper suspension sheet 29 is connected to the inner side of the second vertical arm 26 of the driving plate 2 (i.e. towards or near to one side of the slot between the first vertical arm 22 and the second vertical arm 26 of the driving plate 2), the non-fixed end of the second copper suspension sheet 29 extends in the space above the second boss along the width direction of the driving plate, and the extending section is in a suspended state, so that the second copper suspension sheet 29 can be ensured to swing freely in vibration and magnetic force fit, and can be ensured to be stably connected to the second vertical arm 26 and prevented from sagging and falling off in the vibration process; the second suspension sheet 29 extends over the second standing arm 26 beyond at least the widthwise center of the active plate 2. The second copper suspension sheet 29 is provided with a second active side magnet 27 facing the side of the slot space of the active plate 2 at a position corresponding to the width center of the active plate 2, and the second active side magnet 27 and the first active side magnet 23 are in an axially corresponding fit relationship. The second piezoelectric fiber piece 28 is connected to the second suspension copper piece 29 between the second driving side magnet 27 and the second vertical arm 26 by a screw or the like, and the second piezoelectric fiber piece 28 on the second suspension copper piece 29 and the first piezoelectric fiber piece 24 on the first suspension copper piece 25 are preferably arranged in a central symmetry structure, so that the vibration of the two pieces can be effectively ensured to be basically consistent during the test.
The top surface of the groove region between the first standing arm 22 and the second standing arm 26 of the active plate 2 is provided with an active side electrode assembly 211. The active side electrode assembly 211 is mainly composed of a copper sheet disposed on the top surface of the active board 2, and a dielectric material, such as polyimide, disposed on the surface of the copper sheet.
The plurality of guide wheels 210 are respectively arranged on two sides of the width direction of the driving plate 2 along the length direction, the plurality of guide wheels 210 on each side are uniformly arranged at substantially equal intervals along the length direction of the driving plate 2, and the arrangement positions of the guide wheels 210 on two sides are preferably in bilateral symmetry.
The driven plate 1 has a driven base plate 11 made of plexiglas, and the driven base plate 11 has a substantially rectangular plate structure. In the structure of the cooperation with the driving plate 2, the driven plate 1The length direction corresponds to the width direction of the driving plate 2, and the width direction of the driven plate 1 corresponds to the length direction of the driving plate 2. The two ends of the driven plate 1 in the length direction are respectively provided with U-shaped structure guide grooves which are formed by winding and bending towards the bottom side surfaces, the distance between the left and right groove bottoms of the guide grooves at the two sides is capable of freely penetrating the driving plate 2, the height between the top and bottom of each guide groove at each side is capable of freely penetrating the corresponding side of the driving plate 2, and the outline of the whole driven plate 1 is in a side viewType (2). The width of the driven plate 1 is smaller than the length of the driving plate 2 in the groove area between the first upright arm 22 and the second upright arm 26.
The bottom surface of the groove region between the guide grooves on both sides of the driven plate 1 is provided with a driven-side electrode assembly 14. The driven-side electrode assembly 14 is mainly composed of a copper sheet disposed on the bottom surface of the driven board 1, and a dielectric material, such as polyimide, disposed on the surface of the copper sheet.
At the center of the driven plate 1 in the length direction, a driven side magnet 12 is assembled, when the driven plate 1 is combined with the driving plate 2, the driven side magnet 12 should be in corresponding axial fit with the first driving side magnet 23 and the second driving side magnet 27 on the driving plate 2, and certainly, the driven side magnet 12 and the first driving side magnet 23 and the second driving side magnet 27 still have to keep like-pole repulsive fit. This also requires that, when the driven-side magnet 12 is at the center between the first driving-side magnet 23 and the second driving-side magnet 27 and is kept stationary, both ends of the driven-side magnet 12 and the corresponding driving-side magnets do not form a magnetic field, close to the edges of the magnetic field, so that the driven plate 1 and the driving plate 2 are assembled together; when the stationary state is broken, the opposite ends of the driven side magnet 12 form repulsive magnetic fields with the corresponding driving side magnets, so that the driven plate 1 is slidingly displaced on the driving plate 2.
The driving plate 2 is inserted into the guide grooves 13 on both sides in the longitudinal direction of the driven plate 1 through the guide wheels 210 on both sides in the width direction, so that a limit in one direction and a sliding displacement fit in the other direction are formed, that is, the driven plate 1 is assembled in the groove of the driving plate 2 through the sliding fit between the guide grooves 13 and the guide wheels 210, and a limit is formed in the width direction of the driving plate 2, but in the longitudinal direction of the driving plate 2, the driven plate 1 can slide in the groove between the first standing arm 22 and the second standing arm 26 of the driving plate 2.
The first piezoelectric fiber sheet 24 connected to the first vertical arm 22 of the active plate 2 is connected to the corresponding external resistor through a wire, thereby forming the first piezoelectric energy circuit 5.
The second piezoelectric fiber sheet 28 connected to the second vertical arm 26 of the active board 2 is connected to the corresponding external resistor through a wire, so as to form the second piezoelectric energy circuit 7.
The driving electrode assembly 211 of the driving plate 2 and the driven electrode assembly 14 of the driven plate 1 are connected to corresponding external resistors by wires to form a frictional electric energy circuit 6.
The first piezoelectric energy circuit 5, the second piezoelectric energy circuit 7 and the frictional electric energy circuit 6 are independent of each other.
The processor 4 is a computer on which a signal receiving program is run for collecting voltage wave data of the first piezoelectric energy circuit 5, the second piezoelectric energy circuit 7 and the triboelectric energy circuit 6.
The testing method of the energy collection testing system based on the combination of the magnetomotive vibration piezoelectricity and the triboelectricity comprises the following steps:
step 1, debugging a system, and ensuring that an assembly structure and a circuit are well connected;
according to the test requirement, various different vibration frequencies to be output by the vibration exciter are drawn up, and the different vibration frequencies are preferably ordered so as to operate and test one by one;
step 2, starting a vibration exciter, wherein the vibration frequency output by the vibration exciter enables the driving plate to drive the driven plate to vibrate, and a driven side magnet on the driven plate is matched with a first driving side magnet and a second driving side magnet on the driving plate in a like-pole repulsive manner, so that the driven plate slides back and forth on the driving plate;
step 3, according to the vibration frequency sequence planned in the step 1, selecting one of the vibration frequencies to adjust the vibration exciter, so that the reciprocating sliding of the driven plate on the driving plate is carried out according to the set vibration frequency;
step 4, collecting and storing voltage wave data of the piezoelectric energy loop and the friction electric energy loop by the processor after the reciprocating sliding of the driven plate on the driving plate in the step 3 tends to be stable;
step 5, repeating the step 3 and the step 4 until the test of the vibration frequency planned in the step 1 is completed;
and 6, analyzing piezoelectric energy data and friction electric energy data corresponding to different vibration frequency states, namely respectively obtaining piezoelectric type collection efficiency data and friction type collection efficiency data under various different vibration frequencies, and preferentially obtaining the piezoelectric type collection efficiency data with the highest vibration frequency, the friction type collection efficiency data with the highest vibration frequency, the piezoelectric type and friction type collection efficiency data with the high vibration frequency and the like so as to guide the vibration energy collection technology.
Example 2
Other contents of this embodiment are the same as embodiment 1, except that: one of the suspension copper sheets of the active plate is connected with a piezoelectric fiber sheet, and the other suspension copper sheet is only provided with a corresponding active side magnet.
Example 3
Other contents of this embodiment are the same as embodiment 1, except that: the sliding assembly between the driving plate and the driven plate can be replaced by balls, namely, balls which can correspond to the top and bottom surfaces of the corresponding sides of the driving plate are respectively arranged on the top and bottom sides of the guide groove of the driven plate, and the driven plate is in sliding displacement on the driving plate through the sliding fit of the top and bottom surfaces of the driving plate and the balls.
Example 4
Other contents of this embodiment are the same as embodiment 1, except that: the two ends of the driving plate are respectively provided with a first boss and a second boss structure.
The above examples are only intended to illustrate the present invention, not to limit it. Although the invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: it can be modified or some of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the spirit and scope of the invention.
Claims (10)
1. An energy harvesting test system of magnetomotive vibration piezoelectricity in combination with triboelectricity, the energy harvesting test system comprising:
-a vibration exciter (3), the vibration exciter (3) being used to output a vibration frequency required for the test;
-an active plate (2), said active plate (2) being mounted on said exciter (3); the two ends of the length direction of the driving plate (2) are provided with a first vertical arm (22) and a second vertical arm (26) which are formed by protruding on the same side, the first vertical arm (22) is connected with a first suspension copper sheet (25) with one end in a suspended state, the first suspension copper sheet (25) is provided with a first driving side magnet (23), the second vertical arm (26) is connected with a second suspension copper sheet (29) with one end in a suspended state, the second suspension copper sheet (29) is provided with a second driving side magnet (27), and the first driving side magnet (23) and the second driving side magnet (27) form axial corresponding matching; the first suspended copper sheet (25) and/or the second suspended copper sheet (29) are connected with corresponding piezoelectric fiber sheets, and the piezoelectric fiber sheets and corresponding external load resistors form a piezoelectric energy loop; an active plate (2) type groove surface between the first vertical arm (22) and the second vertical arm (26) is provided with an active side electrode assembly (211);
-a driven plate (1), the driven plate (1) being mounted in a groove of the driving plate (2) in a manner capable of sliding displacement along a length direction of the driving plate (2), the driven plate (1) being mounted with a driven side magnet (12) capable of forming an axial correspondence with a first driving side magnet (23) and a second driving side magnet (27) on the driving plate (2), and the driven side magnet (12) being in homopolar repulsive fit with the first driving side magnet (23) and the second driving side magnet (27); the surface of the driven plate (1) facing the driving plate (2) is provided with a driven side electrode assembly (14), and the driven side electrode assembly (14) and the driving side electrode assembly (211) form a friction electric energy loop (6) with corresponding external resistors;
-a processor (4), said processor (4) being adapted to collect voltage wave data of said piezoelectric energy circuit and said triboelectric energy circuit (6).
2. The system for testing the energy collection of the magnetomotive vibration piezoelectric combined triboelectric according to claim 1, wherein a plurality of guide wheels (210) are respectively arranged on two sides of the width direction of the driving plate (2) along the length direction, the guide wheels (210) on two sides of the width direction of the driving plate (2) are correspondingly provided with U-shaped structure guide grooves (13) for being correspondingly worn on the driven plate (1), and the driven plate (1) is assembled in the profile grooves of the driving plate (2) through sliding fit of the guide grooves (13) and the guide wheels (210).
3. The system for testing the energy collection of the magneto-vibration piezoelectric combined triboelectric according to claim 1, wherein a first vertical arm (22) of the active plate (2) is formed at one corner of the corresponding end part of the active plate (2) in a protruding mode, one end of a first suspension copper sheet (25) connected with the first vertical arm (22) extends along the width direction of the active plate (2), and the extending section is in a suspension state; the second vertical arm (26) of the driving plate (2) is formed at one corner of the corresponding end part of the driving plate (2) in a protruding mode, one end of the second copper suspension sheet (29) connected with the second vertical arm (26) extends along the width direction of the driving plate (2), and the extending section is in a suspended state.
4. The system for testing energy collection of magneto-vibration piezoelectric combined triboelectric according to claim 3, wherein a first boss formed along the width direction is arranged at the end part of the driving plate (2) corresponding to the first vertical arm (22), the first boss is matched with the first vertical arm (22) in an L shape, and the space above the first boss is the vibration space of the first suspended copper sheet (25); and/or, a second boss formed along the width direction is arranged at the end part of the driving plate (2) corresponding to the second vertical arm (26), the second boss is in L-shaped fit with the second vertical arm (26), and the space above the second boss is the vibration space of the second suspended copper sheet (29).
5. The system for testing the energy collection of the magnetovibrating piezo combined with triboelectric according to claim 3 or 4, characterized in that the first vertical arm (22) and the second vertical arm (26) on the active plate (2) are arranged in a diagonal arrangement.
6. The system according to claim 1, wherein the first suspension sheet (25) is connected with a first piezoelectric fiber sheet (24), the second suspension sheet (29) is connected with a second piezoelectric fiber sheet (28), and the first piezoelectric fiber sheet (24) and the second piezoelectric fiber sheet (28) form a central symmetry fit on the active board (2).
7. The system according to claim 1, wherein the driving substrate (21) of the driving plate (2) and the driven substrate (11) of the driven plate (1) are each formed of plexiglass.
8. The system of claim 1, wherein the driven side electrode assembly (14) consists essentially of a copper sheet and a dielectric material disposed on a surface of the copper sheet.
9. The system of claim 1, wherein the active side electrode assembly (211) consists essentially of a copper sheet and a dielectric material disposed on a surface of the copper sheet.
10. A method of testing a magnetomotive vibration piezoelectric combined triboelectric energy harvesting test system according to claim 1, said method comprising the steps of:
step 1, according to test requirements, various different vibration frequencies required to be output by the vibration exciter are drawn up;
step 2, starting the vibration exciter, driving the driven plate to vibrate by the vibrating driving plate, and enabling the driven side magnet on the driven plate to be in homopolar repulsion fit with the first driving side magnet and the second driving side magnet on the driving plate, so that the driven plate slides back and forth on the driving plate;
step 3, according to the vibration frequency sequence planned in the step 1, selecting one of the vibration frequencies to adjust the vibration exciter, so that the reciprocating sliding of the driven plate on the driving plate is carried out according to the set vibration frequency;
step 4, collecting and storing voltage wave data of the piezoelectric energy loop and the friction electric energy loop by the processor after the reciprocating sliding of the driven plate on the driving plate in the step 3 tends to be stable;
step 5, repeating the step 3 and the step 4 until the test of the vibration frequency planned in the step 1 is completed;
and 6, analyzing piezoelectric energy data and friction electric energy data corresponding to different vibration frequency states.
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Citations (9)
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