CN106475294B - A kind of inertial exciter based on integrated two coil configuration - Google Patents
A kind of inertial exciter based on integrated two coil configuration Download PDFInfo
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- CN106475294B CN106475294B CN201510523521.XA CN201510523521A CN106475294B CN 106475294 B CN106475294 B CN 106475294B CN 201510523521 A CN201510523521 A CN 201510523521A CN 106475294 B CN106475294 B CN 106475294B
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Abstract
The present invention provides a kind of inertial exciters based on integrated two coil configuration, comprising: dynamic magnet (1), coil (13), lower coil (14), leaf spring and shell (2)；The circular tube structure that the both ends of the dynamic magnet (1) are symmetrical set, so that the magnetic field that dynamic magnet (1) generates constitutes circuit along the tube wall of circular tube structure, the coil (13), lower coil (14) and shell (2) are in integral structure, one end of the coil (13) and lower coil (14) is symmetrically located in two looping pits (17), after being passed through reversed alternating current, the coil (13), electromagnetic excitation power in the same direction will be generated between lower coil (14) and dynamic magnet (1), make to generate the excitation for being relatively moved to form vibration between magnet (1) and shell (2).The inertial exciter improves the heat-sinking capability of vibration excitor using shell and the integrated structure of coil, improves its long-time, the reliability of high power work.
Description
Technical field
The present invention relates to mechanical vibration technology field, in particular to a kind of inertia-type based on integrated two coil configuration swashs
Shake device.
Background technique
Vibration exciter (abbreviation vibration excitor, also known as actuator) is a kind of vibrational excitation dress for converting electrical energy into mechanical energy
It sets, under the driving of input signal, incentives target generates expected vibration in a manner of power output.With technological progress, in section
It grinds, military affairs, automobile, the every field such as amusement, as people generate vibration or the demand of control is increasingly strong, vibration excitor is answered
With also more and more extensive.
According to the difference of energy transducer, vibration excitor can be divided into the types such as electromagnetic type, piezoelectric type, magnetostriction type, fluid pressure type.
Wherein piezoelectric type, itself mechanical impedance of magnetostriction type vibration excitor is larger, Admissible displacement is lower, be generally suitable for high frequency swash
Vibration；Fluid pressure type vibration excitor needs additional external hydraulic system, and structure is complicated and Admissible displacement is lower, but force value is larger；And electromagnetic type
Vibration excitor additional impedance is small, Admissible displacement is big, is being typically chosen for demand low frequency exciting occasion.
According to the difference of structure and mounting means, vibration excitor can be divided into common vibration excitor and inertial exciter again.Commonly
Vibration excitor is generally made of pedestal and power output end, and when installation, pedestal and power output end will be fixed respectively, installation knot
Structure is complicated and more demanding to installation accuracy, but power output additional impedance very little, and vibration excitor lower limit working frequency compared with
It is low, it is generally used for the occasion of the demands precision measurement such as scientific research.Different from common vibration excitor, there is no power is defeated for inertial exciter
Outlet, it is only necessary to pedestal fixation can be worked normally, therefore simple to install, using more extensive, but its lower limit working frequency is general
It is higher than common vibration excitor.
With the growth of vibration excitor application demand, more stringent requirements are proposed to its performance indicator by people.How not increase
Adding the power fan-out capability that vibration excitor is improved under conditions of volume, weight is the main purpose of current vibration excitor design.Increase coil
Electric current is most straightforward approach, but coil thermal power equally increases at this time, this proposes the heat dissipation performance of vibration excitor higher
It is required that.Currently, being carried out between coil and shell by the bad material of the heating conductions such as glue, bakelite elastic slice in most vibration excitors
Connection, and contact area is small, and the heat that coil generates is difficult to be effectively conducted to shell, so that coil be made to hold under high current
Easy heat accumulation amount generates high temperature.There are also vibration excitors, and coil temperature, but this method are reduced by internally injecting cold air
Complicated ancillary equipment is needed, and impracticable.Therefore, the heat dissipation performance of effective vibration excitor, the temperature of suppression coil how to be improved
It is the major issue of vibration excitor design, can directly promotes its fan-out capability.
Summary of the invention
It is an object of the present invention to solve, existing vibration excitor heat dissipation performance is poor, energy density is low, mounting structure is complicated
The shortcomings that, a kind of inertial exciter of novel integrated two coil configuration is provided, can be mentioned using the inertial exciter
The heat-sinking capability for rising vibration excitor, improves its long-time, the reliability of high power work.
To achieve the above object, a kind of inertial exciter based on integrated two coil configuration provided by the invention, tool
There are twin coil and single action magnet structure, be a kind of moving-iron type vibration excitor, comprising: dynamic magnet, shell, leaf spring, coil and offline
Circle.The leaf spring is in annulus plate elastic construction, for dynamic magnet support in shell, and to be limited the non axial of braking magnet
Displacement, the circular tube structure that the both ends of the dynamic magnet are symmetrical set, so that the magnetic field that dynamic magnet generates is along annular tube shaped
The tube wall of structure constitutes circuit, and a looping pit is equipped in the end face outside of each circular tube structure, for placing coil,
The looping pit is by the inner cavity of circular tube structure and extraneous perforation, and the coil, lower coil are with shell in integrated
One end of structure, the coil and lower coil is symmetrically disposed on the both ends in shell, and the other end is symmetrically located in two annulars
In hole, after two coils are passed through reversed alternating current, electromagnetic excitation in the same direction will be generated between the coil, lower coil and dynamic magnet
Power makes to generate the excitation for being relatively moved to form vibration between magnet and shell.
As a further improvement of the above technical scheme, the dynamic magnet include: iron core, upper permanent magnet, lower permanent magnet,
Upper yoke, lower yoke；The iron core is in hollow tubular structure, is equipped with a ring support on the outer wall of upper/lower terminal,
Annular groove is circumferentially offered between two ring supports；The upper permanent magnet is installed on a ring support and upper yoke
Between, so that forming a circular tube structure after iron core upper end, upper permanent magnet and the combination of upper yoke；The lower permanent magnet is solid
Due between another ring support and lower yoke, so that forming another after iron core lower end, lower permanent magnet and lower yoke combination
Circular tube structure.
As a further improvement of the above technical scheme, the shell includes: upper cover plate, lower cover plate and shell, described
Upper cover plate and lower cover plate be covered each by upper port and lower port in shell；The center of the upper cover plate and lower cover plate is equipped with one
Annular canister, the coil rack of coil rack and lower coil respectively as winding coil, the coil and lower coil difference
It is wound in the end of annular canister.
As a further improvement of the above technical scheme, there is arc angling in the junction of the annular canister and shell, with
Increase the structural strength and heat sinking function of annular canister.
As a further improvement of the above technical scheme, the gap being equipped between the outer wall and upper yoke of the iron core upper end
A looping pit is formed, the gap being equipped between the outer wall and lower yoke of the iron core lower end forms another looping pit.On at this time
Coil, lower coil main body be located in the magnetic gap formed by upper yoke and iron core, lower yoke and iron core.
As a further improvement of the above technical scheme, the quantity of the leaf spring is two；Two leaf springs are
Annulus plate elastic construction, is used to support the weight of dynamic magnet, the outer rim of one of leaf spring be fixed on upper cover plate and shell it
Between, inner rim is then fixed on the outer wall of yoke, and the outer rim of another leaf spring is fixed between lower cover plate and shell, inner rim
It is fixed on the outer wall of lower yoke.The upper cover plate and lower cover plate can be consolidated two leaf springs by the flange that its edge is arranged
Due on shell.
As a further improvement of the above technical scheme, the upper permanent magnet, lower permanent magnet are utilized along radial polarization
Glue is fixed with iron core and upper yoke, lower yoke, and is installed on iron core its rear opposite one side polarity having the same.
As a further improvement of the above technical scheme, the iron core, upper yoke, lower yoke utilize soft magnetic materials whole
Body machine-shaping.
As a further improvement of the above technical scheme, the upper permanent magnet, lower permanent magnet utilize permanent-magnet material whole
Body is processed into ring structure, or is processed into several sector structures using permanent-magnet material, and be spliced into annulus.
A kind of inertial exciter advantage based on integrated two coil configuration of the invention is:
Coil and shell in inertial exciter of the present invention carry out integrated design, the heat that coil is generated
It being effectively conducted to shell, the fever of coil directly can be transferred to the external world through shell, and the heat dissipation performance of vibration excitor is greatly reinforced,
Improve its high-power, long-term work reliability；Tubular structure in a ring is arranged in the both ends of dynamic magnet, so that dynamic magnet generates
Magnetic field along circular tube structure tube wall constitute circuit so that the magnetic field overwhelming majority is constrained in the loop inner, thus greatly
Enhance the magnetic field in looping pit, hot-wire coil is made to generate stronger power, the two coil configuration being equipped with makes vibration excitor identical
There is higher power fan-out capability under volume, weight, stronger vibration can be motivated；The inertial exciter can be any simultaneously
It works under setting angle, improves the scope of application.
Detailed description of the invention
Fig. 1 is the section view of inertial exciter of one of the embodiment of the present invention based on integrated two coil configuration
Figure.
Attached drawing mark:
1, magnet 2, shell 3, iron core are moved
4, upper permanent magnet 5, lower permanent magnet 6, upper yoke
7, lower yoke 8, upper leaf spring 9, lower leaf spring
10, upper cover plate 11, lower cover plate 12, shell
13, coil 14, lower coil 15, ring support
16, annular canister 17, looping pit 18, annular groove
Specific embodiment
It is sharp to a kind of inertia-type based on integrated two coil configuration of the present invention with reference to the accompanying drawings and examples
Vibration device is described in detail.
As shown in Figure 1, a kind of inertial exciter based on integrated two coil configuration provided by the invention includes: dynamic magnetic
Body 1, shell 2, upper leaf spring 8, lower leaf spring 9, coil 13, lower coil 14.The upper leaf spring and lower leaf spring 9 are in annulus plate
Elastic construction for dynamic magnet 1 to be supported in shell 2, and limits the non axial displacement of braking magnet 1, and the two of the dynamic magnet 1
The circular tube structure being symmetrical set is held, so that the magnetic field that dynamic magnet 1 generates constitutes circuit along the tube wall of circular tube structure,
A looping pit 17 is equipped in the end face outside of each circular tube structure, for placing coil, the looping pit 17 will
The inner cavity of circular tube structure and it is extraneous penetrate through, the coil 13, lower coil 14 and shell 2 are in integral structure, on this
One end of coil 13 and lower coil 14 is symmetrically disposed on the both ends in shell 2, and the other end is symmetrically located in two looping pits 17
It is interior, after being passed through reversed alternating current, electromagnetic excitation power in the same direction will be generated between the coil 13, lower coil 14 and dynamic magnet 1,
Make to generate the excitation for being relatively moved to form vibration between magnet 1 and shell 2.The coil 13, lower coil 14 pass to reversed electricity
Stream, can be used cascade or parallel way using circumferential work and puts capable driving into.
Inertial exciter based on above structure, as shown in Figure 1, in the present embodiment, the dynamic magnet 1 includes: iron
Core 3, upper permanent magnet 4, lower permanent magnet 5, upper yoke 6, lower yoke 7；The iron core 3 is the special rotary body knot being processed and formed at one time
Structure comprising central tubular structure and two ring supports 15 being arranged on the outer wall of the iron core upper/lower terminal；On described
Permanent magnet 4,5 body of lower permanent magnet may be designed as circular ring structure, be respectively arranged on above-mentioned two ring support 15；The upper yoke
Iron 6 and lower yoke 7 are particularly ring-shaped structure, are respectively arranged on permanent magnet 4 and lower permanent magnet 5.In the present embodiment, institute
Stating magnet 1 can be bonded by iron core 3, upper permanent magnet 4, lower permanent magnet 5, upper yoke 6, the combination of lower yoke 7, so that iron core 3
Upper end, upper permanent magnet 4 and upper yoke 6 form a circular tube structure, 3 lower end of iron core, lower permanent magnet 5 and lower yoke after combining
Another circular tube structure is formed after 7 combinations, provides magnetic circuit transmission medium to move the magnetic field that magnet 1 generates.It is described it is upper forever
The opposite one side of magnet 4, lower permanent magnet 5 answers polarity having the same, if opposite polarity, then originally two independent closed magnetics
Road can generate coupling, influence the magnetic induction intensity at coil.In addition, can circumferentially offer ring between two ring supports 15
Connected in star 18 interferes with each other so that two annulus lines mutually separate to avoid the magnetic field in two circular tube structures.The iron
The gap being equipped between the outer wall and upper yoke 6 of 3 upper end of core forms a looping pit 17, the outer wall of 3 lower end of iron core and lower yoke
The gap being equipped between iron 7 forms another looping pit 17, and coil 13, the main body of lower coil 14 are located at by upper yoke at this time
In the magnetic gap that 3 upper end of iron 6 and iron core, lower yoke 7 and iron core lower end are formed.In the present embodiment, the upper permanent magnet 4, under forever
Magnet 5 in other embodiments, can also may be partitioned into several sector portions and carry out using permanent-magnet material overall processing circlewise structure
Processing and fabricating, and splice integral annulus during installation.The iron core, upper yoke, lower yoke utilize soft magnetic materials whole
Machine-shaping.Since the two poles of the earth of permanent magnet are contacted with soft magnetic materials, so that its magnetic field overwhelming majority generated is constrained in by soft
The loop inner that magnetic material is constituted makes hot-wire coil generate stronger power to greatly enhance the magnetic field in looping pit.
The shell 2 can include: upper cover plate 10, lower cover plate 11 and shell 12；The upper cover plate 10, lower cover plate 11 can be set
It is calculated as circular plate structure, the upper cover plate 10 and lower cover plate 11 are covered each by upper port and lower port in shell 12, middle part
It is equipped with annular canister 16；The coil rack of coil rack and lower coil respectively as winding coil, the annular canister 16 are symmetrical
The both ends being set in upper cover plate 10 and lower cover plate 11, and with upper cover plate 10, lower cover plate 11 be in integral structure, the coil
13 and lower coil 14 be wound in the end of above-mentioned annular canister 16 respectively.Each component of shell 2 can by lightweight metal material process and
At further to mitigate the overall weight of vibration excitor.
In the present embodiment, the upper cover plate 10, lower cover plate 11 are integrally machined molding using magnesium-aluminium alloy material, heavy
Amount is light, heating conduction is preferable.In other embodiments, the upper cover plate 10, lower cover plate 11 can also be used other materials integrally to add
Work molding or welding fabrication, specific material and processing method need to be determined according to actual weight and radiating requirements.The ring
The junction of shape cylinder 16 and shell 2 may be designed as arc angling structure, to increase the structural strength and heat sinking function of annular canister 16.
The upper leaf spring 8, lower leaf spring 9 are annulus plate elastic construction, and the outer rim of upper leaf spring 8 is fixed on upper cover plate 10
Between shell 12, inner rim is then fixed on the outer wall of yoke 6, and the outer rim of lower leaf spring 9 is fixed on lower cover plate 11 and shell
Between 12, inner rim is fixed on the outer wall of lower yoke 7, is used to support the weight of dynamic magnet 1, simultaneously because upper leaf spring 8, lower plate
Spring 9 has the characteristics that axial rigidity is low, radial rigidity is high, can greatly constrain the non axial displacement of dynamic magnet 1, guarantees that vibration excitor can
It works along any angle.
In addition, there are resonant frequencies for the vibrational system being made of in inertial exciter leaf spring and dynamic magnet, only herein
In frequency band more than frequency, inertial exciter can effective power output excited vibration.Therefore, in order to extend vibration excitor
The lower working band, above-mentioned resonant frequency should be the better.But the frequency is lower, and spring is softer, under the gravity of quality
Static displacement is also bigger.After static displacement is more than certain limit, not only coil can jump out the sphere of action of high-intensity magnetic field, leaf spring
Also it is easy to damage due to excessive displacement.Therefore, intrinsic frequency can not be reduced infinitely, minimum and can be tolerated most
Big static displacement is related.In general, the size of vibration excitor entirety is bigger, and the amplitude peak vibrated between dynamic magnet and shell is got over
Greatly, the patient maximum static displacement of institute is also bigger, and intrinsic frequency is accordingly lower.In the present embodiment, inertial exciter
Overall height is designed as 100mm, and dynamic magnet 1 is 5mm relative to the amplitude peak that shell 2 vibrate, by move magnet 1 and upper leaf spring 8,
The simple harmonic oscillator intrinsic frequency that lower leaf spring 9 is constituted is 20Hz, moves the static displacement about 0.6mm of magnet 1 at this time, has above-mentioned parameter
Inertial exciter can satisfy the application demands of most audio frequencies.In other embodiments, the ruler of inertial exciter
Very little to expand or shrink, maximum vibration amplitude and intrinsic frequency can also be expanded or shunk according to actual needs.
In other embodiments, the dynamic magnet 1 and its each component part are also possible to rectangular or other shapes columns
Structure, coil 13, lower coil 14 and upper leaf spring 8, lower leaf spring 9 can also have corresponding shape at this time.The shell 2 and
Its each component part is also possible to rectangular or other shapes column structures, and surface can also be radiated by perforation, cutting, stickup
The modes such as device improve the heat dissipation performance of vibration excitor.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (7)
1. a kind of inertial exciter based on integrated two coil configuration characterized by comprising dynamic magnet (1), coil
(13), lower coil (14), leaf spring and shell (2)；
The dynamic magnet (1) includes: iron core (3), upper permanent magnet (4), lower permanent magnet (5), upper yoke (6) and lower yoke (7)；
The iron core (3) is in hollow tubular structure, is equipped with a ring support (15) on the outer wall of the upper end and lower end, two rings
Annular groove (18) are circumferentially offered between shape bracket (15)；The upper permanent magnet (4) is fixed on a ring support
(15) between upper yoke (6), so that forming an annular after iron core (3) upper end, upper permanent magnet (4) and upper yoke (6) combination
Tubular structure；The lower permanent magnet (5) is fixed between another ring support (15) and lower yoke (7), so that iron core (3)
Another circular tube structure is formed after lower end, lower permanent magnet (5) and lower yoke (7) combination；Upper permanent magnet (4), lower permanent magnet
(5) opposite one side answers polarity having the same；
The leaf spring is in annulus plate elastic construction, for dynamic magnet (1) to be supported in shell (2), and limits braking magnet
(1) non axial displacement, the circular tube structure that the both ends of the dynamic magnet (1) are symmetrical set, so that dynamic magnet (1) generates
Magnetic field along circular tube structure tube wall constitute circuit, be equipped in the end face outside of each circular tube structure one annular
Hole (17), for placing coil, for the looping pit (17) by the inner cavity of circular tube structure and extraneous perforation, described is online
Enclose (13), lower coil (14) and shell (2) are in integral structure, one end of the coil (13) and lower coil (14) is arranged symmetrically
Both ends in shell (2), the other end is symmetrically located in two looping pits (17), when two coils are passed through reversed alternating current
Afterwards, electromagnetic excitation power in the same direction will be generated between the coil (13), lower coil (14) and dynamic magnet (1), makes magnet (1) and outer
The excitation for being relatively moved to form vibration is generated between shell (2).
2. the inertial exciter according to claim 1 based on integrated two coil configuration, which is characterized in that the iron
The gap that is equipped between the outer wall and upper yoke (6) of core (3) upper end forms a looping pit (17), iron core (3) lower end it is outer
The gap being equipped between wall and lower yoke (7) forms another looping pit (17).
3. the inertial exciter according to claim 1 based on integrated two coil configuration, which is characterized in that described
Upper permanent magnet (4) and lower permanent magnet (5) use permanent-magnet material to be processed into cyclic structure, or are processed into several fans using permanent-magnet material
Shape structure, and splice circlewise.
4. the inertial exciter according to claim 1 based on integrated two coil configuration, which is characterized in that described
Iron core (3), upper yoke (6) and lower yoke (7) are all made of soft magnetic materials and are made.
5. the inertial exciter according to claim 1 based on integrated two coil configuration, which is characterized in that described
Shell (2) includes: upper cover plate (10), lower cover plate (11) and shell (12)；The upper cover plate (10) and lower cover plate (11) are respectively
It is covered in the upper port and lower port of shell (12), the center of the upper cover plate (10) and the center of lower cover plate (11) are equipped with a ring
Shape cylinder (16), the coil rack of coil rack and lower coil (14) respectively as winding coil (13), the coil
(13) and lower coil (14) is wound in the ends of annular canister (16) respectively.
6. the inertial exciter according to claim 5 based on integrated two coil configuration, which is characterized in that described
The arc-shaped chamfering structure in junction of annular canister (16) and shell (2).
7. the inertial exciter according to claim 5 based on integrated two coil configuration, which is characterized in that the plate
The quantity of spring is two；The outer rim of one of leaf spring is fixed between upper cover plate (10) and shell (12), and inner rim is fixed on
On the outer wall of upper yoke (6)；The outer rim of another leaf spring is fixed between lower cover plate (11) and shell (12), and inner rim is fixed on
On the outer wall of lower yoke (7).
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| CN101710777A (en) * | 2009-11-11 | 2010-05-19 | 哈尔滨工程大学 | Energy-saving resonance type electric actuator |
| CN102522874A (en) * | 2012-01-05 | 2012-06-27 | 王健 | Vertical linear vibration motor |
| CN102577052A (en) * | 2009-08-26 | 2012-07-11 | 佩尔皮图姆有限公司 | An electromechanical generator for converting mechanical vibrational energy into electrical energy |
| US8836178B2 (en) * | 2010-08-09 | 2014-09-16 | Samsung Electro-Mechanics Co., Ltd. | Linear vibrator |
| CN204933924U (en) * | 2015-08-24 | 2016-01-06 | 中国科学院声学研究所 | A kind of inertial exciter based on integrated two coil configuration |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577052A (en) * | 2009-08-26 | 2012-07-11 | 佩尔皮图姆有限公司 | An electromechanical generator for converting mechanical vibrational energy into electrical energy |
| CN101710777A (en) * | 2009-11-11 | 2010-05-19 | 哈尔滨工程大学 | Energy-saving resonance type electric actuator |
| US8836178B2 (en) * | 2010-08-09 | 2014-09-16 | Samsung Electro-Mechanics Co., Ltd. | Linear vibrator |
| CN102522874A (en) * | 2012-01-05 | 2012-06-27 | 王健 | Vertical linear vibration motor |
| CN204933924U (en) * | 2015-08-24 | 2016-01-06 | 中国科学院声学研究所 | A kind of inertial exciter based on integrated two coil configuration |
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