CN104883026B - Roll vibrator linear vibration energy collecting device - Google Patents
Roll vibrator linear vibration energy collecting device Download PDFInfo
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- CN104883026B CN104883026B CN201510246013.1A CN201510246013A CN104883026B CN 104883026 B CN104883026 B CN 104883026B CN 201510246013 A CN201510246013 A CN 201510246013A CN 104883026 B CN104883026 B CN 104883026B
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- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims abstract description 9
- 230000005291 magnetic effect Effects 0.000 claims description 48
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000004907 flux Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
One kind rolls vibrator linear vibration energy collecting device, there are two bottom yokes on permanent magnet, there is the coil base of two placement coil braces in the yoke of each bottom, four coil braces are laid in coil base, the extremely corresponding bottom yokes of N are used to place left coil support and rear coil brace, the extremely corresponding bottom yokes of S are used to place right coil brace and preceding coil brace, and four coil braces are identical；Induction coil is wound on coil brace, it is all with teeth in induction coil concatenation on each coil brace, yoke base of four coil braces provided with four yokes of placement, every yoke, bottom of the tooth is identical with the width of tooth top, and left and right yoke is interspersed with the tooth in forward and backward yoke；It is connected in the cavity that front and rear yoke and left and right yoke are surrounded above the spherical oscillator of arrangement, each yoke with yoke.The present invention provides the rolling vibrator linear vibration energy collecting device that a kind of leakage field is less, energy conversion rate is small compared with high, coefficient of friction, have good stability.
Description
Technical field
The present invention relates to energy collecting device, especially a kind of electromagnetic vibration energy collection device.
Background technology
It is a difficult point to wireless sensor network or distributed mini system powerup issue.And vibration is one kind of nature
Energy existence form.The wave on such as sea, the swing of branch in the wind, jarring vehicle etc..Vibrating power-generation is will be each
The energy for planting vibration generation is converted into electric energy, is a kind of potential pollution-free, not consumption of natural resource novel power generation device,
It is suitable for wireless sensor network or distributed mini system node is used.
A kind of mode for realizing vibrating power-generation is that electromagnetic induction phenomenon generates electricity.Conventional electromagnetic induction vibration generating device,
Internal structure is different.The vibrating electricity generator of Application No. 200410067821.3, Application No. 200810230833.1
Three-dimensional vibrating electricity generator, the portable vibration generator of Application No. 200710126703.9, Application No.
200610051677.3 magnetic-field extrusion reinforced vibration generator.Paper " new permanent-magnet external linear reciprocating generator
Performance study " (journal of Zhejiang university engineering version, volume 41 the 9th phase, pp.1604-1608) and paper " A micro
electromagnetic generator for vibration energy harvesting”(JOURNAL OF
MICROMECHANICS AND MICROENGINEERING, 17 (2007), pp.1257-1265), relatively it is difficult to ensure in its structure
The less requirement of air gap in magnetic circuit is demonstrate,proved, fails to realize closed magnetic circuit, understands that its magnetic induction intensity is low by the relevant theory of motor, magnetic circuit
Utilization rate is not high, and vibrational energy utilization rate is not high.Some above-mentioned data coil utilization rates, which are also one, simultaneously can improve it
Place, have in its coil more part can not effective cutting magnetic line, produce electromotive force, influence generating efficiency.Application No.
201020125287.8 encircling type vibration generator, four S poles of its permanent magnet are distributed in cruciform symmetry, the connection of its bottom
It is connected together and with N poles, this has very high requirement to manufacturing process, very difficult manufacture.Simultaneously because pacifying between N poles and S poles
Equipped with coil, entirety and structure are more complicated, that is, enable and manufactured permanent magnet, install also relatively difficult.Also, due to N poles and S
Across coil between pole, the air gap in that magnetic circuit may result in the magnetic flux that magnetic circuit can not be closed or sensed still than larger
Weaker, the electric energy of generation is less, and this loses more than gain for it of high manufacturing cost.Application No. 2012104994623
Electromagnetic vibration power generation device, although try hard to eliminate detent force by the method for balancing magnetic force, but due to magnetic force in first device
Much larger than gravity, and due to the presence of error and asymmetry, detent force unavoidably still has to a certain extent, resistance
Oscillator flexible motion is hindered；On the other hand, its permanent magnet belongs to oscillator, it is easy to by broken bad in vibration.
The content of the invention
In order to overcome that the leakage field of existing vibration energy harvesting mode is high, energy conversion rate is low and device using it is unstable not
Foot, the present invention provides that a kind of leakage field is less, energy conversion rate is higher, permanent magnet is fixed, in movement of pendulum for rolling friction, stably
The rolling vibrator linear vibration energy collecting device of property well.
The technical solution adopted for the present invention to solve the technical problems is：
One kind rolls vibrator linear vibration energy collecting device, including shell, and the energy collecting device also includes being located at
Permanent magnet, bottom yoke, coil brace, front and rear yoke and left and right yoke in shell
The permanent magnet, which has, two bottom yokes on N poles and S poles, the permanent magnet, there is two placements in each bottom yoke
Four coil braces are laid in the coil base of coil brace, the coil base, the extremely corresponding bottom yokes of N are used to place left line
Coil support and rear coil brace, the extremely corresponding bottom yokes of S are used to place right coil brace and preceding coil brace, four coil braces
It is identical；
Wound on the coil brace on the induction coil concatenation on induction coil, each coil brace, four coil braces
Provided with the yoke base for laying four yokes, it is left yoke to be placed on left coil support, is placed on right coil brace
It is right yoke, it is preceding yoke to be placed on preceding coil brace, and it is rear magnetic yoke to be placed on rear coil brace, left yoke and the right side
Yoke is staggered relatively and identical, and preceding yoke is staggered relatively and identical with rear magnetic yoke, all with teeth in every yoke,
Bottom of the tooth is identical with the width of tooth top, and left and right yoke is interspersed with the tooth in forward and backward yoke；Front and rear yoke and left and right magnetic
It is connected in the cavity that yoke is surrounded above the spherical oscillator of arrangement, each yoke with yoke.
Further, above the yoke it is elastic washer.
The enclosure has four guide rails, and the guide rail is used for the circumferential position for fixing yoke, coil brace and bottom yoke
Put, that is, each yoke is located at the gap between guide rail, and each coil brace is located at the gap between guide rail, two bottom yokes
Have on arc surface groove be just used on embedded two just to guide rail；Spherical oscillator is placed between four guide rails, oscillator is rolled with guide rail
Dynamic contact.
There is top cover above the shell, top cover is made up of non-magnetic material, have external screw thread on the outside of cover top portion, inside of top cover has
External screw thread, coordinates top cover to be fixed on shell, and elastic washer of helping get over a shock by screw thread.
The present invention technical concept be：In the present invention under effect of vibration, oscillator is rolled on housing slide, and yoke is with shaking
Relative motion occurs for son, and coil flux size is continually changing, and coil is with regard to that can produce induced voltage.To illustrate that it changes, it is considered under
Two kinds of face situation：
1) oscillator is along along guide rail vibration and rolling process, and there are a great circle and guide pass phase in the surface of spherical oscillator all the time
Cut.When the great circle and left and right yoke tooth top middle position just pair when, the magnetic line of force is sent by permanent magnet N poles, successively by bottom yoke, a left side
Coil brace, left yoke, air gap, spherical oscillator, air gap, right yoke, right coil brace, return to permanent magnet S pole, form closed magnetic
Road.Under the situation, magnetic flux reaches maximum in the coil on left and right coil brace, and magnetic flux is 0 in the coil in forward and backward yoke.
2) when spherical oscillator is moved upwards, the surface of spherical oscillator and the tangent great circle of guide pass and front and rear yoke are just right
When.The magnetic line of force is sent by permanent magnet N, successively through later coil brace, rear magnetic yoke, air gap, spherical oscillator, air gap, preceding yoke, after
Coil brace returns to permanent magnet S pole, forms closed magnetic circuit.In this case, magnetic flux reaches most in the coil in forward and backward yoke
Greatly, magnetic flux is reduced to 0 by original maximum in the coil in left and right yoke.
Magnetic flux is constantly changed in each opposing yoke coil in above-mentioned analysis shows, spherical oscillator rolling process, and it is advised
Restrain for magnetic flux in the coil in forward and backward yoke it is equal in magnitude in opposite direction；Magnetic flux side equal in magnitude in coil in left and right yoke
To opposite；In coil in coil in forward and backward yoke in the absolute value of magnetic flux and left and right yoke the absolute value of magnetic flux it
Forward and backward length is then left and right to disappear and the left and right length then forward and backward relation disappeared with for constant, presenting.Therefore, 4 lines of rational series connection
Circle can be superimposed the induced electromotive force of each coil, such as set the top of each coil as forward direction, then by left coil, reversely line after concatenation
Circle, reversely concatenates right coil, in the same direction coil before concatenation.
Yoke is investigated to the axial force of oscillator, yoke is produced to oscillator when oscillator is gradually deviated from left and right yoke tooth top or so
The axial component of magnetic force tends to pull it back, but now because front and rear yoke also produces the attraction magnetic force to oscillator, due to right
Title property, the magnetic force axial component is balanced with left and right yoke axial component in theory, therefore positioned magnetic is eliminated from principle.
Meanwhile, also need to investigate orientation problem caused by the frictional force produced by magnetic force in movement of pendulum.In the present invention by
Symmetrical in left and right yoke, front and rear yoke is symmetrical, therefore the radial magnetic force on oscillator can be balanced mutually in theory, but due to mismachining tolerance
Still had to a certain extent etc. reason radial direction total magnetic force.Oscillator diametrically position is limited by the guide rail on shell in device
The skew put, limits the increase of radial direction total magnetic force；Recycle and roll oscillator, reduce friction, further eliminate radial direction total magnetic force and lead to
Detent force caused by friction is crossed, movement of pendulum flexibility is improved.
Beneficial effects of the present invention：The utilization rate of magnetic circuit is improved, coil utilization rate is improved, collection of energy effect is improved
The service life of rate and equipment；Symmetrical structure is used in structure design, while using spherical oscillator, positioning is eliminated to greatest extent
Power so that oscillator can be with free movement；Permanent magnet is fixed, be rolling friction in movement of pendulum, and coefficient of friction is smaller.
Brief description of the drawings
Fig. 1 is the cut-away view for rolling vibrator linear vibration energy collecting device.
Fig. 2 is the schematic diagram for rolling vibrator linear vibration energy collecting device (non-housing).
Fig. 3 is the outside drawing for rolling vibrator linear vibration energy collecting device.
Fig. 4 is the schematic diagram of bottom yoke.
Fig. 5 is the schematic diagram of coil brace.
Fig. 6 is the schematic diagram of front and rear yoke.
Fig. 7 is the schematic diagram of shell.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
1~Fig. 7 of reference picture, one kind rolls vibrator linear vibration energy collecting device, including shell 11, the collection of energy
Device also includes permanent magnet 1, bottom yoke 2, coil brace 3, front and rear yoke 5 and the left and right yoke 7 being located in shell；
The permanent magnet 1, which has on N poles and S poles, the permanent magnet 1 to have in two bottom yokes 2, each bottom yoke 2, two
Lay and four coil braces 3 are laid in the coil base of coil brace, the coil base, the extremely corresponding bottom yokes of N are used to put
Left coil support and rear coil brace are put, the extremely corresponding bottom yokes of S are used to place right coil brace and preceding coil brace, four lines
Coil support 3 is identical；
The induction coil concatenation on induction coil 4, each coil brace, four coil braces are wound on the coil brace 3
Provided with the yoke base for laying four yokes, it is left yoke to be placed on left coil support, is placed on right coil brace
Be right yoke, on coil brace be preceding yoke before being placed in, it is rear magnetic yoke to be placed on rear coil brace, left yoke and
Right yoke is staggered relatively and identical, and preceding yoke is staggered relatively and identical with rear magnetic yoke, has in every yoke
Tooth, bottom of the tooth is identical with the width of tooth top, and left and right yoke is interspersed with the tooth in forward and backward yoke；Front and rear yoke 5 and a left side
It is connected in the cavity that right yoke 7 is surrounded above the spherical oscillator 6 of arrangement, each yoke with yoke 8.
Further, the top of yoke 8 is elastic washer 9.
There are four guide rails inside the shell 11, the guide rail is used for the circumference for fixing yoke, coil brace and bottom yoke
Position, that is, each yoke are located at the gap between guide rail, and each coil brace is located at the gap between guide rail, two bottom yokes
Arc surface on have groove be just used on embedded two just to guide rail；Spherical oscillator, oscillator and guide rail are placed between four guide rails
It is in rolling contact.
There is top cover 10 top of shell 11, and top cover 10 is made up of non-magnetic material, has external screw thread, top cover on the outside of cover top portion
There is external screw thread inner side, coordinates top cover to be fixed on shell, and elastic washer of helping get over a shock by screw thread.
The permanent magnet 1 is rectangular parallelepiped structure, left side N poles and the right S poles.The permanent magnet 1 is ferrite permanent-magnet materials
Or rare earth permanent-magnetic material is made.
Totally two pieces of the bottom yoke 2, part is extremely connected with the N poles of permanent magnet 1 or S below, and can be stuck in permanent magnet 1
On, bottom yoke upper part, which has groove, to be used to lay coil brace 3, and outer arc face is fluted, can be embedded on shell 11
In guide rail.
Part is connected with bottom yoke 2 below the coil brace 3, and can be stuck in bottom yoke 2, the coil brace 3
Center section be cylinder, for placing coil 4.Partly be used for above the coil brace 3 there is also groove before laying,
Rear magnetic yoke 5 and left and right yoke 7.
The coil 4 is around in the center section of coil brace 3, totally 4 coils by being that enamel covered wire coiling is formed.
The forward and backward yoke 5 and left and right yoke 7 are individually positioned on coil brace 3, there is placement yoke on coil brace 3
Groove, the circumferential guide rail positioning on shell 11.
The yoke 8 and forward and backward yoke 5, left and right yoke 7 and shell can closely connect together and protect total
It is fixed to keep steady.
The spherical oscillator 6 be ferromagnetic material, be shaped as it is spherical be easy on the guide rail of shell 11 roll.
The elastic washer 9 is placed between yoke 8 and top cover 10.
The shell 11 can load whole device, and there are four convex guides its side, be easy to fix forward and backward yoke 5, left,
Right yoke 7 and yoke 8.
Closed magnetic circuit can be formed in the present invention.Under extraneous effect of vibration, spherical oscillator 6 is constantly rolled, when oscillator is not
The magnetic flux of each magnetic circuit is changed with when being rolled on yoke loop, the magnetic flux that coil can be sensed is continually changing, form alternation
Electric current.Four coils 4 are concatenated according to certain mode by wire, then lead to battery charging to store electricity by wire
Energy.Just higher alternating electromotive force can be produced when the number of turn of coil is larger.It can be seen that utilization rate of the present apparatus to magnetic circuit and coil
Higher, vibrational energy conversion ratio is high and equips the generating of energy continuous and effective.
The magnetic line of force that permanent magnet in the present invention is sent, can form closed-loop path, and device is higher to the utilization rate of magnet.
Its advantage：One is simple in construction, and the manufacture of each part is more convenient；Two be that design comparison is reasonable, installs more convenient, three be to shake
The utilization rate of son vibration is high, improves efficiency；Four be to focus on eliminating detent force in structure design, ensure that and shakes using spherical oscillator
The free movement of son.
Claims (4)
1. one kind rolls vibrator linear vibration energy collecting device, including shell, it is characterised in that：The energy collecting device is also
Including the permanent magnet in shell, bottom yoke, coil brace, front and rear yoke and left and right yoke；
The permanent magnet, which has, two bottom yokes on N poles and S poles, the permanent magnet, there is two placement coils in each bottom yoke
Four coil braces are laid in the coil base of support, the coil base, the extremely corresponding bottom yokes of N are used to place left coil branch
Frame and rear coil brace, the extremely corresponding bottom yokes of S are used to place right coil brace and preceding coil brace, and four coil braces are complete
It is identical；
The induction coil concatenation on induction coil, each coil brace is wound on the coil brace, four coil braces are provided with
The yoke base of four yokes is laid, it is left yoke to be placed on left coil support, it is right to be placed on right coil brace
Yoke, it is preceding yoke to be placed on preceding coil brace, and it is rear magnetic yoke to be placed on rear coil brace, left yoke and right yoke
Staggered relatively and identical, preceding yoke is staggered relatively and identical with rear magnetic yoke, all with teeth in every yoke, bottom of the tooth
It is identical with the width of tooth top, and left and right yoke is interspersed with the tooth in forward and backward yoke；Front and rear yoke and left and right yoke are enclosed
Into cavity in arrange spherical oscillator, be connected with yoke above each yoke.
2. vibrator linear vibration energy collecting device is rolled as claimed in claim 1, it is characterised in that：On the yoke
Side is elastic washer.
3. vibrator linear vibration energy collecting device is rolled as claimed in claim 1 or 2, it is characterised in that：In the shell
There are four guide rails in portion, and the guide rail is used for the circumferential position for fixing yoke, coil brace and bottom yoke, that is, each yoke is located at
Gap between guide rail, each coil brace, which is located on the gap between guide rail, the arc surface of two bottom yokes, has groove just handy
In embedded two just to guide rail；Spherical oscillator is placed between four guide rails, oscillator is in rolling contact with guide rail.
4. vibrator linear vibration energy collecting device is rolled as claimed in claim 2, it is characterised in that：Have above the shell
Top cover, top cover is made up of non-magnetic material, has external screw thread on the outside of cover top portion, inside of top cover has external screw thread, is coordinated by screw thread and pushed up
Lid is fixed on shell, and elastic washer of helping get over a shock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246013.1A CN104883026B (en) | 2015-05-14 | 2015-05-14 | Roll vibrator linear vibration energy collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246013.1A CN104883026B (en) | 2015-05-14 | 2015-05-14 | Roll vibrator linear vibration energy collecting device |
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| Publication Number | Publication Date |
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| CN104883026A CN104883026A (en) | 2015-09-02 |
| CN104883026B true CN104883026B (en) | 2017-08-25 |
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| CN201510246013.1A Active CN104883026B (en) | 2015-05-14 | 2015-05-14 | Roll vibrator linear vibration energy collecting device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591516A (en) * | 2015-09-18 | 2016-05-18 | 王宁宁 | Spontaneous power generation device based on vibration mechanical energy |
| CN106602835A (en) * | 2016-12-28 | 2017-04-26 | 湖南大学 | Two-degree-of-freedom magnetic levitation vibration energy harvester and manufacturing method thereof |
| CN106787078A (en) * | 2017-02-21 | 2017-05-31 | 太原理工大学 | A kind of oscillatory type generating mobile phone power bank |
| CN108173406B (en) * | 2017-12-29 | 2023-11-28 | 浙江工业大学 | Closed magnetic circuit shoe energy collecting device |
| CN108631537B (en) * | 2018-02-27 | 2023-11-28 | 浙江工业大学 | Cantilever beam vibration energy collecting device with free end magnetic circuit adjusting function |
| CN114513104B (en) * | 2022-01-24 | 2023-12-29 | 浙江大学 | Rolling type vibration energy collector |
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|---|---|---|---|---|
| CN103001449A (en) * | 2012-11-28 | 2013-03-27 | 浙江工业大学 | Electromagnetic vibration power generation device |
| CN204652197U (en) * | 2015-05-14 | 2015-09-16 | 浙江工业大学 | Rolling vibrator linear vibration energy collecting device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355116A (en) * | 2011-09-30 | 2012-02-15 | 张新东 | Generator for guiding change in magnetic field loop |
| AU2013254931B2 (en) * | 2013-11-07 | 2019-03-28 | The Commonwealth Of Australia | Vibration energy conversion device |
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2015
- 2015-05-14 CN CN201510246013.1A patent/CN104883026B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001449A (en) * | 2012-11-28 | 2013-03-27 | 浙江工业大学 | Electromagnetic vibration power generation device |
| CN204652197U (en) * | 2015-05-14 | 2015-09-16 | 浙江工业大学 | Rolling vibrator linear vibration energy collecting device |
Non-Patent Citations (1)
| Title |
|---|
| 《Analytical Model of a Vibrating Electromagnetic Harvester Considering Nonlinear Effects》;Enrico Dallago等;《IEEE TRANSACTIONS ON POWER ELECTRONICS》;20100831;第1989～1997页 * |
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