CN207459955U - Combined type rotating energy collector - Google Patents
Combined type rotating energy collector Download PDFInfo
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- CN207459955U CN207459955U CN201721492105.9U CN201721492105U CN207459955U CN 207459955 U CN207459955 U CN 207459955U CN 201721492105 U CN201721492105 U CN 201721492105U CN 207459955 U CN207459955 U CN 207459955U
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Abstract
The utility model is related to a kind of energy harvester, including：Pedestal；The electromagnetic coil being fixed in the pedestal；It is fixed on the disc magnets of stator of the base center；The friction plate retainer ring being fixed on the pedestal；At least one friction blade unit being fixed on the friction plate retainer ring medial surface, the disk rotor magnet that bottom is contacted with the electromagnetic coil, wherein, the disk rotor magnet is held by the disc magnets of stator, moreover, the outer surface of the disk rotor magnet and the outer surface of the disc magnets of stator are tangent；And it is fixed on the ring-shaped friction lining on the disk rotor magnet；Wherein, the ring-shaped friction lining is made with friction plate of the material of opposed polarity.Above-mentioned energy harvester, simple in structure, electric energy delivery efficiency height.
Description
Technical field
The utility model is related to collection of energy, more particularly to energy harvester.
Background technology
Technology of wireless sensing network is widely used in military affairs, intelligent transportation, environmental monitoring etc..Sensor
The complexity of node deployment environment and the particularity of application request determine that node power cannot utilize normal power train
System is powered, and using battery powered mode, there is the problems such as of high cost, short life, replacement trouble again.In natural environment
With the various abundant energy, energy collection technology is the technology that a kind of acquisition energy from external environment is converted into electric energy, is
Solve the potential mode of wireless sensing node powerup issue.It collects environment kinetic energy and changes into electric energy, there is environmentally protective, source
Extensively, it is capable of the advantage of long-term work.
The low and bandwidth yet with the vibration source common frequency in environment, vibration amplitude, frequency and the randomness in direction
Greatly, current resonance type vibration energy harvester often has relatively narrow working band and single vibration direction, therefore generally existing
The problem of be to be applicable in that oscillating region is narrow, output power density is low, it is difficult to meet the confession electricity demanding of wireless sensing node.
There are following technical problems for traditional technology：
It is high (being more than 10Hz) in the universal working frequency of energy gathering apparatus at present, and with relatively narrow working band and
Single vibration direction, environmental suitability are poor.Device electricity output under the low-frequency vibration environment less than 10Hz is low, single mechanism
Energy harvester output is restricted, and can not meet the power demands of low-power consumption sensing node.
Utility model content
Based on this, it is necessary to for above-mentioned technical problem, provide a kind of energy harvester, simple in structure, electric energy output effect
Rate is high.
A kind of energy harvester, which is characterized in that including：
Pedestal；
The electromagnetic coil being fixed in the pedestal；
It is fixed on the disc magnets of stator of the base center；
The friction plate retainer ring being fixed on the pedestal；
At least one friction blade unit being fixed on the friction plate retainer ring medial surface, wherein, the friction plate list
Member, which includes conductive metal sheet and the friction plate being close in the conductive metal sheet one side or the friction blade unit, includes elasticity
Substrate, the conductive metal sheet in the elastic substrate one side and it is close to the friction plate of the conductive metal sheet or described rubs
Pad unit includes conductive metal sheet and is close to two friction plates on the conductive metal sheet two sides or the friction plate respectively
Unit includes elastic substrate, is located at two conductive metal sheets on the elastic substrate two sides respectively and is close to respectively described two
Two friction plates of conductive metal sheet；
The disk rotor magnet that bottom is contacted with the electromagnetic coil, wherein, the disk rotor magnet is described
Disc magnets of stator is held, moreover, the outer surface of the disk rotor magnet and the appearance of the disc magnets of stator
Face is tangent；And
The ring-shaped friction lining being fixed on the disk rotor magnet；
Wherein, the ring-shaped friction lining is made with friction plate of the material of opposed polarity.
Above-mentioned energy harvester, simple in structure, electric energy delivery efficiency height.
In other one embodiment, the friction plate is made of fluorinated ethylene propylene copolymer, the annular friction
Piece is made of copper.
In other one embodiment, the quantity of the friction blade unit is two or three or four, and ring-type is uniformly
It is distributed on the friction plate retainer ring medial surface.
In other one embodiment, the pedestal inner annular is uniformly distributed there are four electromagnetic coil groove；The electricity
The first electromagnetic coil that magnetic coil is cascaded by 4 forms；Four the first electromagnetic coil groups are separately fixed at four
In the electromagnetic coil groove.
In other one embodiment, the conductive metal sheet is copper sheet.
In other one embodiment, by rubber, either the scraps of paper or plastics are made the elastic substrate.
In other one embodiment, the friction plate retainer ring includes four friction plate retainer rings being fixed together
Piece；The friction plate fixed ring piece includes friction plate fixed ring piece main body and is distinguished by the friction plate fixed ring piece main body both ends
The fixation ear extended to form；There is fixed hole on the fixed ear；Two adjacent friction plate fixed ring piece profits
It is fixedly connected with bolt through the fixed hole on respective fixed ear.
In other one embodiment, the friction plate retainer ring includes two friction plate retainer rings being fixed together
Piece；The friction plate fixed ring piece includes friction plate fixed ring piece main body and is distinguished by the friction plate fixed ring piece main body both ends
The fixation ear extended to form；There is fixed hole on the fixed ear；Two friction plate fixed ring pieces utilize bolt
It is fixedly connected through the fixed hole on respective fixed ear.
In other one embodiment, the disc magnets of stator, which is bolted on, described is fixed on the bottom
Seat center or the disc magnets of stator are adhesive in the base center by fixation.
In other one embodiment, the head cover for covering the friction plate retainer ring is further included.
Description of the drawings
Fig. 1 is a kind of structure diagram of energy harvester (removal head cover) provided by the embodiments of the present application.
Fig. 2 for a kind of structure diagram of energy harvester provided by the embodiments of the present application, (fix by removal head cover, friction plate
Ring and friction blade unit).
Fig. 3 is the knot of the friction plate retainer ring and friction blade unit in a kind of energy harvester provided by the embodiments of the present application
Structure schematic diagram.
Fig. 4 is the structure diagram of the head cover in a kind of energy harvester provided by the embodiments of the present application.
Fig. 5 is a kind of dynamic schematic diagram of energy harvester operation principle provided by the embodiments of the present application.
Fig. 6 is a kind of experiment test figure of the Electromagnetic generation part of energy harvester provided by the embodiments of the present application.
Fig. 7 is a kind of experiment test figure of the triboelectricity part of energy harvester provided by the embodiments of the present application.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Refering to Fig. 1, a kind of energy harvester, including：Pedestal；The electromagnetic coil being fixed in the pedestal；It is fixed on institute
State the disc magnets of stator of base center；The friction plate retainer ring being fixed on the pedestal；It is at least one be fixed on it is described
Friction blade unit on friction plate retainer ring medial surface, the disk rotor magnet that bottom is contacted with the electromagnetic coil, wherein,
The disk rotor magnet is held by the disc magnets of stator, moreover, the outer surface of the disk rotor magnet with
The outer surface of the disc magnets of stator is tangent；And it is fixed on the ring-shaped friction lining on the disk rotor magnet；Wherein,
The ring-shaped friction lining is made with friction plate of the material of opposed polarity.
The shape of pedestal is not limited in the present embodiment, the pedestal in Fig. 1 is a possible example, Ke Yigen
Appropriate deformation is made according to the effect of pedestal.
It please refers to Fig.1 and Fig. 2, in one embodiment in addition, the pedestal inner annular is uniformly distributed that there are four electromagnetic wires
Enclose groove；The first electromagnetic coil that the electromagnetic coil is cascaded by 4 forms；Four the first electromagnetic coil components
It is not fixed in four electromagnetic coil grooves.Like this, such coil distribution is cut by disk rotor magnet produces
Raw voltage is big.It is appreciated that a possible example is merely given as in the present embodiment.For example, electromagnetic coil is an entirety
Electromagnetic coil or the small electromagnetic coil that is cascaded by 2 form, those skilled in the art can be according to actual needs
Make appropriate deformation.
In other one embodiment, the disc magnets of stator, which is bolted on, described is fixed on the bottom
Seat center or the disc magnets of stator are adhesive in the base center by fixation.Certainly, the disc stator magnet
Iron is fixed on the base center described in can also being fixed in other way, for example is buckled.
Glue may be employed for the friction plate retainer ring being fixed on the pedestal, friction plate retainer ring is fixed on institute
It states on pedestal, naturally it is also possible to by the way of buckle.
Refering to Fig. 3, in other one embodiment, the friction plate retainer ring includes four frictions being fixed together
Piece fixed ring piece；The friction plate fixed ring piece includes friction plate fixed ring piece main body and by the friction plate fixed ring piece main body
Both ends each extend over the fixation ear to be formed；There is fixed hole on the fixed ear；Two adjacent friction plates are consolidated
Determine ring plate to be fixedly connected through the fixed hole on respective fixed ear using bolt.Like this, friction plate retainer ring side
Just dismantle, ease of assembly.
In other one embodiment, the friction plate retainer ring includes two friction plate retainer rings being fixed together
Piece；The friction plate fixed ring piece includes friction plate fixed ring piece main body and is distinguished by the friction plate fixed ring piece main body both ends
The fixation ear extended to form；There is fixed hole on the fixed ear；Two friction plate fixed ring pieces utilize bolt
It is fixedly connected through the fixed hole on respective fixed ear.Like this, friction plate retainer ring is easy to disassemble, facilitates group
Dress.
In other one embodiment, the quantity of the friction blade unit is two or three or four, and ring-type is uniformly
It is distributed on the friction plate retainer ring medial surface.Wherein, generating effect is more excellent when the quantity of the friction blade unit is two.
Wherein, the friction blade unit includes conductive metal sheet and the friction plate being close in the conductive metal sheet one side
(the first structure, conductive metal sheet-friction plate) or the friction blade unit include elastic substrate, positioned at the elastic substrate
Conductive metal sheet on one side and friction plate (second of structure, the elastic substrate-conducting metal for being close to the conductive metal sheet
Piece-friction plate) or the friction blade unit include conductive metal sheet and be close to two of the conductive metal sheet two sides respectively
Friction plate (the third structure, friction plate-conductive metal sheet-friction plate) or the friction blade unit include elastic substrate, divide
Two conductive metal sheets that Wei Yu be on the elastic substrate two sides and it is close to two of described two conductive metal sheets respectively and rubs
Pad (the 4th kind of structure, friction plate-conductive metal sheet-elastic substrate-conductive metal sheet-friction plate).
For including the structure of two friction plates, for disk rotor magnet either what direction spin friction when all
It can generate electricity.Can only can rub with friction plate for disk rotor magnet for only including the structure of a friction plate
Direction carry out spin friction when can generate electricity, that is to say, that can only one direction triboelectricity.
For the structure comprising elastic substrate, due to the effect of elastic substrate, friction blade unit is by disk rotor magnet
Original position can be returned to after shock, ensures that hitting the contact area to rub during friction next time is also to maintain maximum.
It is appreciated that when the quantity of the friction blade unit is at least two, handle may be employed in the friction blade unit
Four kinds of structures are combined.
In other one embodiment, the conductive metal sheet is copper sheet.
In other one embodiment, by rubber, either the scraps of paper or plastics are made the elastic substrate.
The ring-shaped friction lining is made with friction plate of the material of opposed polarity also means that ring-shaped friction lining and friction
Piece is made of opposite polarity friction material.It is appreciated that the ring-shaped friction lining can be positive polarity friction material, relatively
Ground, the friction plate are negative polarity friction materials.Certainly, the ring-shaped friction lining can be negative polarity friction material, relatively,
The friction plate is positive polarity friction material.When ring-shaped friction lining rubs with friction plate, positive polarity friction material surface is with just
Charge, negative polarity friction material surface carry negative electrical charge.
In other one embodiment, the positive and negative electrode frottage material electrodes are less than the gold of 1m Ω cm for resistivity
Category, alloy or metal oxide.In other one embodiment, the positive polarity friction material is easily to lose electronics positively charged
The material of lotus, selected from silica, glass, nylon, metallic aluminium, metallic copper or metallic gold.It is described negative in other one embodiment
Polarity friction material is the material for the lotus that is easy to get that an electron is negatively charged, selected from polytetrafluoroethylene (PTFE), polyimides, Parylene,
Dimethyl silicone polymer or polyethylene terephthalate.
In other one embodiment, the friction plate is made of fluorinated ethylene propylene copolymer, the annular friction
Piece is made of copper.
Refering to Fig. 4, in other one embodiment, the head cover for covering the friction plate retainer ring is further included.It can be to prevent
Only disk rotor magnet around disc magnets of stator rotate when, since rotating speed comparatively fast flies out pedestal, that is to say, that limit circle
The on-circular displacement of disk type rotor magnet.Head cover can be fixed together (fixing glue or buckle with the friction plate retainer ring
Etc. fixed form).It can also be passed through by bolt logical on the disc magnets of stator by then passing through on head cover
Hole is fixed on the pedestal.In the embodiment including head cover, the fixed form of friction plate retainer ring and pedestal can not also
Using the way (glue or buckle) of above-described embodiment, bolt through on head cover by then passing through the disc stator
Through hole on magnet is fixed on the pedestal, while friction plate retainer ring is stated in head cover and base pinch residence, like this, compound
The assembling of formula rotating energy collector is more flexible.
A concrete application scene of the application implementation is described below：
Refering to Fig. 1 to Fig. 4, a kind of energy harvester, including：Pedestal 100；The electromagnetic coil being fixed in the pedestal
200；It is fixed on the disc magnets of stator 300 of the base center；The friction plate retainer ring 400 being fixed on the pedestal；
Ring-type is evenly distributed on two friction blade units 500 of the friction plate retainer ring medial surface, and the friction blade unit includes bullet
Property substrate, respectively be located at the elastic substrate two sides on two conductive metal sheets and be close to described two conductive metal sheets respectively
Two friction plates, the elastic substrate is made of the scraps of paper, and the conductive metal sheet is copper sheet, and the friction plate is by ethylene fluoride
Propylene copolymer is made；The disk rotor magnet 600 that bottom is contacted with the electromagnetic coil, wherein, the disk rotor
Magnet is held by the disc magnets of stator, moreover, the outer surface of the disk rotor magnet and the disc stator
The outer surface of magnet is tangent；The ring-shaped friction lining 700 being fixed on the disk rotor magnet, the ring-shaped friction lining is by copper
It is made；And cover the head cover of the friction plate retainer ring.The pedestal inner annular is uniformly distributed there are four electromagnetic coil groove；
The first electromagnetic coil that the electromagnetic coil is cascaded by 4 forms；Four the first electromagnetic coil groups are fixed respectively
In four electromagnetic coil grooves.The friction plate retainer ring includes four friction plate fixed ring pieces being fixed together；
The friction plate fixed ring piece includes friction plate fixed ring piece main body 410 and is distinguished by the friction plate fixed ring piece main body both ends
The fixation ear 420 extended to form；There is fixed hole 421 on the fixed ear；Two adjacent friction plates are fixed
Ring plate is fixedly connected using bolt through the fixed hole on respective fixed ear.
Fig. 5 is a kind of dynamic schematic diagram of energy harvester operation principle provided by the embodiments of the present application, illustrates disk
Shape rotor magnet rotated around disc magnets of stator an almost whole circle schematic diagram (top half from left to right, the latter half from
The right side a to left side).
Fig. 6 and Fig. 7 is a kind of experiment test figure of energy harvester provided by the embodiments of the present application, for the device is fixed
When on the ankle of people, in a state that people is run on a treadmill with speed per hour 2,4,6,8km/h, Electromagnetic generation part (disc
Rotor magnet and electromagnetic coil triboelectricity) and triboelectric effect part (friction plate and ring-shaped friction lining triboelectricity) output
Voltage pattern.
The application combined type rotating energy collector introduces magnets of stator and rotor magnet, in extraneous low frequency arbitrary excitation
Under, rotor magnet is rotated around magnets of stator, while relative motion occurs for the electromagnetic coil with being circumferentially distributed, so as to produce
Raw electric energy output.Magnets of stator and rotor magnet are all to have certain thickness disc-shaped structure.Magnets of stator is located at center, due to
Mutual attractive force between magnet, rotor magnet are adsorbed at the edge of magnets of stator.Extraneous small sample perturbations can encourage rotor magnetic
Do reciprocal (first a direction rotates, and yet another direction rotates) or circular motion in very tight patch magnets of stator edge.The device rotor
Rotation need not other auxiliary rotational structures, and rotate when its frictional resistance be much smaller than other clearance fits rotational structure,
Such as bearing.Combined type rotating energy collector secures copper ring made of metal copper foil on rotor magnet, works as rotor magnet
Fast reciprocating rotate when all can be fixed in device wall by fluorinated ethylene propylene copolymer (FEP) copper foil electrode and substrate system
Into friction plate rub, generate triboelectric effect, so as to produce electricl energy enough output.Using rotor magnet and magnets of stator as matchmaker
It is situated between, with reference to Electromagnetic generation and the principle of triboelectric effect, devises a kind of rotating energy collector of combined type.
The application combined type rotating energy collector is without other additional ancillary vibration, the rotational structures such as spring, bearing
It realizes the relative motion of rotor magnet and coil, is not only simple in structure using mutual attractive force between magnet, and frictional resistance is micro-
It is small, so as to be very easy to realize reciprocal and rotary motion under small sample perturbations excitation；It can realize the energy in different direction of excitation
Amount is collected and the efficient output of different excited frequencies, and working frequency is low, bandwidth, applied widely；The vibration environment of the device
It is adaptable, have a wide range of application；The collection of energy compared with complex vibration operating mode is can be applied not only to, while can also be applied to human body
Random kinetic energy collecting and ocean wave energy are collected；The characteristics of these environment kinetic energy is low vibration frequency, vibration amplitude, frequency
With direction randomness it is big the characteristics of；When the device works, i.e., when rotor magnet rotates, Electromagnetic generation is sent out simultaneously with triboelectric effect
It is raw, improve electric energy delivery efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of energy harvester, which is characterized in that including：
Pedestal；
The electromagnetic coil being fixed in the pedestal；
It is fixed on the disc magnets of stator of the base center；
The friction plate retainer ring being fixed on the pedestal；
At least one friction blade unit being fixed on the friction plate retainer ring medial surface, wherein, the friction blade unit bag
Include conductive metal sheet and the friction plate be close in the conductive metal sheet one side or the friction blade unit include elastic substrate,
Conductive metal sheet in the elastic substrate one side and it is close to the friction plate of the conductive metal sheet or the friction plate
Unit includes conductive metal sheet and is close to two friction plates on the conductive metal sheet two sides or the friction blade unit respectively
Including elastic substrate, it is located at two conductive metal sheets on the elastic substrate two sides respectively and is close to described two conductions respectively
Two friction plates of sheet metal；
The disk rotor magnet that bottom is contacted with the electromagnetic coil, wherein, the disk rotor magnet is by the disk
Shape magnets of stator is held, moreover, the outer surface of the disk rotor magnet and the outer surface phase of the disc magnets of stator
It cuts；And
The ring-shaped friction lining being fixed on the disk rotor magnet；
Wherein, the ring-shaped friction lining is made with friction plate of the material of opposed polarity.
2. energy harvester according to claim 1, which is characterized in that the friction plate is by fluorinated ethylene propylene copolymer
It is made, the ring-shaped friction lining is made of copper.
3. energy harvester according to claim 1, which is characterized in that the quantity of the friction blade unit is two or three
A or four, ring-type is evenly distributed on the friction plate retainer ring medial surface.
4. energy harvester according to claim 1, which is characterized in that the pedestal inner annular be uniformly distributed there are four electricity
Magnetic coil groove；The first electromagnetic coil that the electromagnetic coil is cascaded by 4 forms；Four first electromagnetic coils
Group is separately fixed in four electromagnetic coil grooves.
5. energy harvester according to claim 1, which is characterized in that the conductive metal sheet is copper sheet.
6. energy harvester according to claim 1, which is characterized in that the elastic substrate by rubber either the scraps of paper or
Plastics are made.
7. energy harvester according to claim 1, which is characterized in that the friction plate retainer ring is fixed on including four
Friction plate fixed ring piece together；The friction plate fixed ring piece includes friction plate fixed ring piece main body and is consolidated by the friction plate
Determine ring plate main body both ends and each extend over the fixation ear to be formed；There is fixed hole on the fixed ear；Two adjacent institutes
Friction plate fixed ring piece is stated to be fixedly connected through the fixed hole on respective fixed ear using bolt.
8. energy harvester according to claim 1, which is characterized in that the friction plate retainer ring is fixed on including two
Friction plate fixed ring piece together；The friction plate fixed ring piece includes friction plate fixed ring piece main body and is consolidated by the friction plate
Determine ring plate main body both ends and each extend over the fixation ear to be formed；There is fixed hole on the fixed ear；Two frictions
Piece fixed ring piece is fixedly connected using bolt through the fixed hole on respective fixed ear.
9. energy harvester according to claim 1, which is characterized in that the disc magnets of stator is bolted
The base center is adhesive in by fixation in the base center or the disc magnets of stator of being fixed on.
10. energy harvester according to claim 1, which is characterized in that further include and cover the friction plate retainer ring
Head cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721492105.9U CN207459955U (en) | 2017-11-10 | 2017-11-10 | Combined type rotating energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721492105.9U CN207459955U (en) | 2017-11-10 | 2017-11-10 | Combined type rotating energy collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207459955U true CN207459955U (en) | 2018-06-05 |
Family
ID=62278766
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721492105.9U Active CN207459955U (en) | 2017-11-10 | 2017-11-10 | Combined type rotating energy collector |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681864A (en) * | 2017-11-10 | 2018-02-09 | 苏州大学 | Combined type rotating energy collector |
| CN110053029A (en) * | 2019-05-15 | 2019-07-26 | 苏州大学 | A kind of self-powered rotation detection and interaction control device and method |
-
2017
- 2017-11-10 CN CN201721492105.9U patent/CN207459955U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681864A (en) * | 2017-11-10 | 2018-02-09 | 苏州大学 | Combined type rotating energy collector |
| WO2019090820A1 (en) * | 2017-11-10 | 2019-05-16 | 苏州大学 | Composite rotation energy collector |
| US11228259B2 (en) | 2017-11-10 | 2022-01-18 | Soochow University | Hybrid rotary energy harvester |
| CN107681864B (en) * | 2017-11-10 | 2023-11-24 | 苏州大学 | Composite rotary energy collector |
| CN110053029A (en) * | 2019-05-15 | 2019-07-26 | 苏州大学 | A kind of self-powered rotation detection and interaction control device and method |
| CN110053029B (en) * | 2019-05-15 | 2023-05-23 | 苏州大学 | Self-powered rotation detection and interaction control device and method |
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