CN104767422B - Spring beam and vibration energy collector for making vibration energy collector - Google Patents
Spring beam and vibration energy collector for making vibration energy collector Download PDFInfo
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- CN104767422B CN104767422B CN201510226975.0A CN201510226975A CN104767422B CN 104767422 B CN104767422 B CN 104767422B CN 201510226975 A CN201510226975 A CN 201510226975A CN 104767422 B CN104767422 B CN 104767422B
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- spring beam
- permanent magnet
- energy collector
- vibration energy
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Abstract
A kind of spring beam for being used to make vibration energy collector, its innovation is：The spring beam is tubular spiral structure body；The tubular spiral structure body is straight tube or cone cylinder；It is flat ribbon structure after the tubular spiral structure body flattening；The spring beam is made using elastomeric material.The method have the benefit that：A kind of spring beam of new construction is proposed, compared to existing elastic construction, this spring beam is wider to the adaptability of direction of vibration and vibration frequency point, and thus obtained vibration energy collector possesses more preferable energy acquisition efficiency.
Description
Technical field
The present invention relates to a kind of vibration energy collector, more particularly to a kind of elasticity for being used to make vibration energy collector
Beam and vibration energy collector.
Background technology
With the development of wireless sensor technology, it is that the technology of wireless senser energy supply also becomes study hotspot, vibrates
Energy collecting device is exactly typical case therein；Existing vibration energy collector, its part is divided by function and generally can be divided into
Vibration induction portion and two, electricity output portion major part, the main function in vibration induction portion is that vibrational energy is acquired（Or
Sensing）And vibrational energy is passed into electricity output portion, the performance in vibration induction portion directly determines the energy of vibration energy collector
Collecting efficiency；No. 201310530588.7 Chinese patent application discloses a kind of multi-direction broadband energy collecting device, compares
In the energy collecting device of other structures, the structure of this energy collecting device is relatively easy, is only just made up of spring beam and mass
Vibration induction portion；Aforementioned patent applications are the achievements in research of the present inventor's early stage, with going deep into for research, inventor
It was found that performance of the aforementioned schemes also in the presence of some defects, especially its spring beam is preferable not enough：Its spring beam（That is aforementioned patent
" elastic connection beam " in application）For an elongated rod-like structure, although the spring beam of this structure can be in the circumference of bar
Vibration responded, but the vibration in the axial direction of bar can not be responded, and in order to ensure vibration efficiency, bar it is straight
Footpath is smaller, causes on the circumferential surface of bar that available space is very narrow and small, it is impossible to paste larger-size piezoelectric membrane, and
Because the diameter of bar is smaller, the deformation quantity of piezoelectric membrane of the winding up on bar is extremely limited, is unfavorable for electricity output；In addition, existing
The spring beam having in technology directly uses spring, during using spring, and the outer peripheral face of spring is almost no can be viscous with voltage supply conductive film
The space of patch, and when axial direction and the horizontal direction parallel of spring, if spring rate is not enough, spring will under gravity to
Lower bending, easily interferes or collides with other structures, if spring rate is larger, again the Oscillation Amplitude of spring can be caused to bear
Face rings.
The content of the invention
The problem of in background technology, the present invention proposes a kind of spring beam for being used to make vibration energy collector, its
Innovation is：The spring beam is tubular spiral structure body；The tubular spiral structure body is straight tube or cone cylinder；The tubular spiral shell
It is flat ribbon structure to revolve after structure flattening；The spring beam is made using elastomeric material.
The present invention principle be：The tubular spiral structure body and spring structure for forming spring beam of the present invention are quite similar, but
The outer peripheral face width of solid section thereon is but much larger than common spring, and from the point of view of vibration performance, the spring beam of this structure is removed
Rotational vibration can be picked up outer, moreover it is possible to axial vibration is responded, compared to the spring beam of rod-like structure, this hair
The bright adaptability to direction of vibration is wider；And the characteristics of there are multiple modal vibrations due to the spring beam of the structure, therefore, it is possible to
The vibration of multiple Frequency points is responded, is made as after vibration energy collector, so that it may so that vibration energy collector possesses more
High energy acquisition efficiency；Compared to the spring beam of spring structure, available space on the circumferential surface of spring beam of the invention
It is bigger, when it is combined with piezoelectric membrane, it is available for the piezoelectric membrane of large-size to paste, and be also more conducive to piezoelectric membrane generation shape
Become, improve the electricity output of vibration energy collector.
Preferably, the width at each upward position of the flat ribbon axis of no-feathering is identical.Using the elasticity of this structure
Solid section width on tubular spiral structure body produced by material, its circumferential surface at diverse location is identical, is easy to processing
Make.
Preferably, the flat ribbon structure is Trapezoidal structure, and the width of flat ribbon structure axially unidirectionally becomes along it
Change.It is solid at diverse location on its circumferential surface using the tubular spiral structure body produced by the elastomeric material of this structure
Partial width gradually successively decreases by the hand of spiral, wherein, one end of wider width is used to constrain fixation, one end conduct of narrower width
Free end, the vibrating effect of the tubular spiral structure body of this structure is more preferable.
One kind uses aforementioned flexible vibration of beam energy collecting device, and its innovation is：The vibration energy collector is by base
Seat, spring beam, balancing weight and multi-disc piezoelectric membrane composition；The spring beam is tubular spiral structure body；The tubular spiral knot
Structure body is straight tube or cone cylinder；It is straight banded structure after the tubular spiral structure body flattening, straight each upper position of banded structure axial direction
The width for putting place is identical；The spring beam is made using elastomeric material；It is provided with what is matched with spring beam internal diameter on the pedestal
Boss, spring beam the inner is socketed in outside boss；The balancing weight is the cylindrical structural body matched with spring beam internal diameter, spring beam
Outer end is socketed in outside balancing weight；The multi-disc piezoelectric membrane is either pasted onto on the outer peripheral face of spring beam or is pasted onto elasticity
On the inner peripheral surface of beam, or multi-disc piezoelectric membrane is pasted onto on the outer peripheral face and inner peripheral surface of spring beam simultaneously.
The operation principle of this vibration energy collector is：When in external vibration incentive action to pedestal, spring beam also with
Vibration, the balancing weight of spring beam outer end in the presence of inertia, with pedestal occur relative displacement, so as to strengthen shaking for spring beam
In dynamic amplitude, vibration processes, elastic deformation can occur for each position on spring beam, be pasted onto the piezoelectric membrane on spring beam
Also deform therewith, so as to produce electricity output；
Preferably, the balancing weight is made using permanent magnet material；Permanent magnet is provided with the outside of the balancing weight, it is described
Permanent magnet is relative with the end face of balancing weight, and gap is left between permanent magnet and balancing weight.During vibration, nothing between permanent magnet and pedestal
Relative displacement, under static state, because identical charges repel each other or there is a natural attraction between the sexes, spring beam is in energy accumulating state, and this is just greatly
The flexibility of spring beam is added, can also break balance even if very small vibration, spring beam is effectively vibrated.
Based on aforementioned flexible beam, the invention also provides the vibration energy collector of following structure, its innovation is：It is described
Vibration energy collector is by pedestal, spring beam, permanent magnet two, permanent magnet three and magnetostriction Piezoelectric Laminated magneto-electric transducer group
Into；The spring beam is tubular spiral structure body；The tubular spiral structure body is straight tube or cone cylinder；The tubular helical structure
It is straight banded structure after body flattening, the width at straight each upper position of banded structure axial direction is identical；The spring beam is using elasticity
Material makes；The boss matched with spring beam internal diameter is provided with the pedestal, spring beam the inner is socketed in outside boss；It is described forever
Magnet two is the cylindrical structural body matched with spring beam internal diameter, and spring beam outer end is socketed in outside permanent magnet two；The permanent magnet
Three are arranged at the outside of permanent magnet two, and permanent magnet three is relative with permanent magnet biend, the opposite face of permanent magnet three and permanent magnet two
Opposite polarity；The outer end of the magnetostriction Piezoelectric Laminated magneto-electric transducer is connected with the inner face of permanent magnet three, magnetostriction
Piezoelectric Laminated magneto-electric transducer is located between permanent magnet two and permanent magnet three, magnetostriction Piezoelectric Laminated magneto-electric transducer it is inner with
Gap is left between permanent magnet two.
This scheme is electricity output mode with foregoing piezoelectric membrane scheme difference, in this scheme, magnetostriction piezoelectricity
Laminated magneto-electric transducer is located in the closed magnetic circuit that permanent magnet three and permanent magnet two are constituted, during elastic beam vibration, permanent magnet three
Without relative displacement between pedestal, permanent magnet two also acts the effect of enhancing amplitude in addition to for forming closed magnetic circuit, when
When permanent magnet two is subjected to displacement under the drive of spring beam, magnetostriction Piezoelectric Laminated magneto-electric transducer surrounding magnetic field will be caused
Change, so as to form electricity output；
Based on aforementioned flexible beam, the invention also provides the vibration energy collector of following structure, its innovation is：It is described
Vibration energy collector is made up of pedestal, spring beam, permanent magnet four and induction coil；The spring beam is tubular helical structure
Body；The tubular spiral structure body is straight tube or cone cylinder；It is straight banded structure, straight banding after the tubular spiral structure body flattening
Width at each upward position of axis of no-feathering is identical；The spring beam is made using elastomeric material；Be provided with the pedestal with
The boss of spring beam internal diameter matching, spring beam the inner is socketed in outside boss；The permanent magnet four is what is matched with spring beam internal diameter
Cylindrical structural body, spring beam outer end is socketed in outside permanent magnet four；The induction coil is arranged at the outside of permanent magnet four, sensing
Gap is left between coil and permanent magnet four.
The electricity output principle of this scheme is：During vibration, without relative displacement between pedestal and induction coil, when permanent magnet four exists
When occurring of reciprocating vibration under the gearing of spring beam, equivalent to induction coil in cutting magnetic line, according to faraday's electromagnetism sense
Principle is answered, induction coil will produce electricity output.
The method have the benefit that：A kind of spring beam of new construction is proposed, compared to existing elastic construction,
This spring beam is wider to the adaptability of direction of vibration and vibration frequency point, and thus obtained vibration energy collector possesses more preferably
Energy acquisition efficiency.
Brief description of the drawings
Fig. 1, using elastic beam structure schematic diagram during equal in width flat ribbon structure；
Fig. 2, using elastic beam structure schematic diagram during Trapezoidal flat ribbon structure；
Fig. 3, using vibration energy collector structural representation during piezoelectric membrane；
Fig. 4, Fig. 3 scheme have installed the structural representation after permanent magnet additional；
Fig. 5, using vibration energy collector structural representation during magnetostriction Piezoelectric Laminated magneto-electric transducer；
Fig. 6, using vibration energy collector structural representation during electromagnetic induction coil；
The corresponding title of the mark of each in figure is respectively：Pedestal 1, spring beam 2, balancing weight 3, piezoelectric membrane 4, permanent magnet
5th, permanent magnet 26, permanent magnet 37, magnetostriction Piezoelectric Laminated magneto-electric transducer 8, permanent magnet 49, induction coil 10.
Embodiment
A kind of spring beam for being used to make vibration energy collector, its innovation is：The spring beam 2 is tubular spiral knot
Structure body；The tubular spiral structure body is straight tube or cone cylinder；It is flat ribbon structure after the tubular spiral structure body flattening；Institute
Spring beam 2 is stated to make using elastomeric material.
Further, the width at each upward position of the flat ribbon axis of no-feathering is identical.
Further, the flat ribbon structure is Trapezoidal structure, and the width of flat ribbon structure is axially unidirectional along it
Change.
One kind uses aforementioned flexible vibration of beam energy collecting device, and its innovation is：The vibration energy collector is by base
Seat 1, spring beam 2, balancing weight 3 and multi-disc piezoelectric membrane 4 are constituted；The spring beam 2 is tubular spiral structure body；The tubular spiral shell
It is straight tube or cone cylinder to revolve structure；It is straight banded structure after the tubular spiral structure body flattening, straight banded structure is axially upper each
Width at individual position is identical；The spring beam 2 is made using elastomeric material；It is provided with the pedestal 1 and the internal diameter of spring beam 2
The boss of matching, the inner of spring beam 2 is socketed in outside boss；The balancing weight 3 is the cylindrical structural matched with the internal diameter of spring beam 2
Body, the outer end of spring beam 2 is socketed in outside balancing weight 3；The multi-disc piezoelectric membrane 4 is pasted onto on the outer peripheral face of spring beam 2, or
Person is pasted onto on the inner peripheral surface of spring beam 2, or multi-disc piezoelectric membrane 4 is pasted onto the outer peripheral face and inner peripheral surface of spring beam 2 simultaneously
On.
Further, the balancing weight 3 is made using permanent magnet material；The outside of the balancing weight 3 is provided with permanent magnet
5, the permanent magnet 5 is relative with the end face of balancing weight 3, and gap is left between permanent magnet 5 and balancing weight 3.
One kind uses aforementioned flexible vibration of beam energy collecting device, and its innovation is：The vibration energy collector is by base
Seat 1, spring beam 2, permanent magnet 26, permanent magnet 37 and magnetostriction Piezoelectric Laminated magneto-electric transducer 8 are constituted；The spring beam 2
For tubular spiral structure body；The tubular spiral structure body is straight tube or cone cylinder；It is straight after the tubular spiral structure body flattening
Width at banded structure, straight each upper position of banded structure axial direction is identical；The spring beam 2 is made using elastomeric material；Institute
The boss for being provided with and being matched with the internal diameter of spring beam 2 on pedestal 1 is stated, the inner of spring beam 2 is socketed in outside boss；The permanent magnet 26
For the cylindrical structural body matched with the internal diameter of spring beam 2, the outer end of spring beam 2 is socketed in outside permanent magnet 26；The permanent magnet 37
Be arranged at the outside of permanent magnet 26, permanent magnet 37 is relative with the end face of permanent magnet 26, permanent magnet 37 and permanent magnet 26 it is relative
Face opposite polarity；The outer end of the magnetostriction Piezoelectric Laminated magneto-electric transducer 8 is connected with the inner face of permanent magnet 37, mangneto
Flexible Piezoelectric Laminated magneto-electric transducer 8 is located between permanent magnet 26 and permanent magnet 37, magnetostriction Piezoelectric Laminated magnetoelectricity transducing
Device 8 is inner to leave gap between permanent magnet 26.
One kind uses aforementioned flexible vibration of beam energy collecting device, and its innovation is：The vibration energy collector is by base
Seat 1, spring beam 2, permanent magnet 49 and induction coil 10 are constituted；The spring beam 2 is tubular spiral structure body；The tubular spiral shell
It is straight tube or cone cylinder to revolve structure；It is straight banded structure after the tubular spiral structure body flattening, straight banded structure is axially upper each
Width at individual position is identical；The spring beam 2 is made using elastomeric material；It is provided with the pedestal 1 and the internal diameter of spring beam 2
The boss of matching, the inner of spring beam 2 is socketed in outside boss；The permanent magnet 49 is the cylinder knot matched with the internal diameter of spring beam 2
Structure body, the outer end of spring beam 2 is socketed in outside permanent magnet 49；The induction coil 10 is arranged at the outside of permanent magnet 49, the line of induction
Gap is left between circle 10 and permanent magnet 49.
Claims (4)
1. a kind of vibration energy collector, it is characterised in that：The vibration energy collector is by pedestal（1）, spring beam（2）, match somebody with somebody
Pouring weight（3）With multi-disc piezoelectric membrane（4）Composition；The spring beam（2）For tubular spiral structure body；The tubular spiral structure body
For straight tube or cone cylinder；It is straight banded structure after the tubular spiral structure body flattening, straight banded structure is axially at each upper position
Width it is identical；The spring beam（2）Made using elastomeric material；The pedestal（1）On be provided with and spring beam（2）Internal diameter
The boss matched somebody with somebody, spring beam（2）The inner is socketed in outside boss；The balancing weight（3）For with spring beam（2）The cylinder of internal diameter matching
Structure, spring beam（2）Outer end is socketed in balancing weight（3）Outside；The multi-disc piezoelectric membrane（4）Or it is pasted onto spring beam（2）
Outer peripheral face on, or be pasted onto spring beam（2）Inner peripheral surface on, or multi-disc piezoelectric membrane（4）It is pasted onto spring beam simultaneously
（2）Outer peripheral face and inner peripheral surface on.
2. vibration energy collector according to claim 1, it is characterised in that：The balancing weight（3）Using permanent magnet material
Material makes；The balancing weight（3）Outside be provided with permanent magnet（5）, the permanent magnet（5）With balancing weight（3）End face it is relative,
Permanent magnet（5）And balancing weight（3）Between leave gap.
3. a kind of vibration energy collector, it is characterised in that：The vibration energy collector is by pedestal（1）, spring beam（2）, forever
Magnet two（6）, permanent magnet three（7）With magnetostriction Piezoelectric Laminated magneto-electric transducer（8）Composition；The spring beam（2）For tubular
Spiral structure body；The tubular spiral structure body is straight tube or cone cylinder；It is straight banding knot after the tubular spiral structure body flattening
Width at structure, straight each upper position of banded structure axial direction is identical；The spring beam（2）Made using elastomeric material；The base
Seat（1）On be provided with and spring beam（2）The boss of internal diameter matching, spring beam（2）The inner is socketed in outside boss；The permanent magnet two
（6）For with spring beam（2）The cylindrical structural body of internal diameter matching, spring beam（2）Outer end is socketed in permanent magnet two（6）Outside；It is described
Permanent magnet three（7）It is arranged at permanent magnet two（6）Outside, permanent magnet three（7）With permanent magnet two（6）End face is relative, permanent magnet three
（7）With permanent magnet two（6）Opposite face opposite polarity；The magnetostriction Piezoelectric Laminated magneto-electric transducer（8）Outer end with forever
Magnet three（7）Inner face connection, magnetostriction Piezoelectric Laminated magneto-electric transducer（8）Positioned at permanent magnet two（6）With permanent magnet three
（7）Between, magnetostriction Piezoelectric Laminated magneto-electric transducer（8）Inner and permanent magnet two（6）Between leave gap.
4. a kind of vibration energy collector, it is characterised in that：The vibration energy collector is by pedestal（1）, spring beam（2）, forever
Magnet four（9）And induction coil（10）Composition；The spring beam（2）For tubular spiral structure body；The tubular spiral structure body
For straight tube or cone cylinder；It is straight banded structure after the tubular spiral structure body flattening, straight banded structure is axially at each upper position
Width it is identical；The spring beam（2）Made using elastomeric material；The pedestal（1）On be provided with and spring beam（2）Internal diameter
The boss matched somebody with somebody, spring beam（2）The inner is socketed in outside boss；The permanent magnet four（9）For with spring beam（2）The cylinder of internal diameter matching
Shape structure, spring beam（2）Outer end is socketed in permanent magnet four（9）Outside；The induction coil（10）It is arranged at permanent magnet four（9）'s
Outside, induction coil（10）With permanent magnet four（9）Between leave gap.
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| CN201510226975.0A CN104767422B (en) | 2015-05-07 | 2015-05-07 | Spring beam and vibration energy collector for making vibration energy collector |
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| CN201510226975.0A CN104767422B (en) | 2015-05-07 | 2015-05-07 | Spring beam and vibration energy collector for making vibration energy collector |
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| CN104767422A CN104767422A (en) | 2015-07-08 |
| CN104767422B true CN104767422B (en) | 2017-07-28 |
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| WO2001047041A2 (en) * | 1999-12-21 | 2001-06-28 | 1... Limited | Electro-active devices |
| JP4288873B2 (en) * | 2000-07-24 | 2009-07-01 | オムロン株式会社 | Actuator and actuator manufacturing method |
| CN101641504A (en) * | 2007-01-08 | 2010-02-03 | 韦里斯特工程有限责任公司 | Utilize the energy storage and discharge the method and apparatus that carries out energy acquisition |
| CN103532433B (en) * | 2013-11-01 | 2015-08-19 | 重庆大学 | Multi-direction broadband energy collecting device |
| CN103684048A (en) * | 2014-01-07 | 2014-03-26 | 重庆大学 | Laminating magnetoelectric-type broadband three-dimensional vibrating energy collector and resilient mechanism thereof |
| CN103872946B (en) * | 2014-03-26 | 2016-06-15 | 太原理工大学 | Linear multiple degrees of freedom low-frequency vibration energy collecting device vibration pick-up structure |
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Effective date of registration: 20200415 Address after: Room 401, building 12, Chongqing Qidi Science Park, No. 69, torch Avenue, Jiulongpo District, Chongqing Patentee after: Zhongling ESCO (Chongqing) Environmental Protection Industry Co., Ltd Address before: 400044 Shapingba District Sha Street, No. 174, Chongqing Patentee before: Chongqing University |
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