CN105163248B - The coil-moving speaker of both sides pronunciation - Google Patents
The coil-moving speaker of both sides pronunciation Download PDFInfo
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- CN105163248B CN105163248B CN201510613280.8A CN201510613280A CN105163248B CN 105163248 B CN105163248 B CN 105163248B CN 201510613280 A CN201510613280 A CN 201510613280A CN 105163248 B CN105163248 B CN 105163248B
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- China
- Prior art keywords
- voice coil
- magnetic conductive
- core column
- orientation cylinder
- conductive core
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Abstract
The invention discloses a kind of coil-moving speakers of both sides pronunciation, it is characterised in that：It includes substrate, it is symmetrically set in two frame of substrate both sides, it is each provided with a sound generating mechanism in each side frame, the sound generating mechanism includes cone, magnetic conductive board, drive magnet, magnetic conductive core column, voice coil and voice coil orientation cylinder, the osculum end of magnetic conductive board and frame is fixed, voice coil is wound in outside voice coil orientation cylinder, one end of voice coil orientation cylinder and one end of cone are fixed, cone is set up in frame, and the outer rim of the other end of cone and the big opening end of frame are fixed, one end of magnetic conductive core column is fixed with substrate, the other end of magnetic conductive core column is inserted into the central through hole of voice coil orientation cylinder, lubricating structure is equipped between the magnetic conductive core column and voice coil orientation cylinder.The present invention provides a kind of coil-moving speaker of both sides pronunciation, and the thermal energy for the generation that rubs in voice coil vibrations voiced process is few, to improve the time of loud speaker continuous work and the service life of loud speaker.
Description
Technical field
The present invention relates to the technical field of electro-acoustic transducer device, the coil-moving speaker that specifically a kind of both sides are pronounced.
Background technology
Coil-moving speaker is also known as dynamic speaker.Its operation principle is to work as current－carrying conductor according to Faraday's law
When passing through magnetic field, it can be met by an electric power, direction and not carry out bright left hand rule, power is hung down mutually with electric current, magnetic direction
Directly, stress size is directly proportional to electric current, conductor length, magnetic flux density.When voice coil input alternation tone currents, voice coil is by one
A alternation motive force generates alternate motion, drives cone vibration, pushes air repeatedly and sounding.
It can be seen that during speaker operation, voice coil is therefore the rubbing between voice coil and air in oscillation exchange
It wipes and the friction between voice coil and drive magnet will produce certain heat, if the heat of above-mentioned generation cannot be arranged in time
Go out, it will so that drive magnet is generated hot demagnetization effects, eventually lead to the magnetic property reduction of drive magnet or complete demagnetization.Especially exist
In powerful loud speaker, the amplitude and vibration frequency of voice coil are higher, therefore the rate of its generation thermal energy is much big
In the rate of loud speaker heat dissipation, this also just constrains the time of the continuous work of supersound projector, and operating personnel are for making
Above-mentioned existing supersound projector is used with long-continued the considerations of requirement, it will the magnetic property of drive magnet is caused to decline
Subtract, thereby reduces the service life of loud speaker.This namely in the prior art supersound projector after long-term continuous use
Where the problem of being easily damaged.
Invention content
The technical problem to be solved by the present invention is to：A kind of coil-moving speaker of both sides pronunciation, voice coil vibrations are provided
Rub in voiced process generation thermal energy it is few, to improve the time of loud speaker continuous work and the service life of loud speaker.
The technical solution used in the present invention is：A kind of coil-moving speaker of both sides pronunciation is provided, it includes substrate, right
Claim two frame set on substrate both sides, is each provided with a sound generating mechanism in each side frame, the sound generating mechanism includes paper
Basin, magnetic conductive board, drive magnet, magnetic conductive core column, voice coil and voice coil orientation cylinder, the drive magnet are clamped in substrate and magnetic conductive board
Between, the osculum end of magnetic conductive board substrate close with frame is fixed, and voice coil is wound in outside voice coil orientation cylinder, and accommodating with voice coil orientation cylinder
In in the centre bore of drive magnet, one end of voice coil orientation cylinder and one end of cone are fixed, and cone is set up in frame, and cone
The outer rim of the other end and the big opening end of frame fix, one end and the substrate of magnetic conductive core column are fixed, and the other end of magnetic conductive core column is inserted
In the central through hole for entering voice coil orientation cylinder, magnetic conductive core column is slidably matched with voice coil orientation cylinder, the magnetic conductive core column and voice coil orientation
The lubricating structure of frictional force between the lateral wall for reducing magnetic conductive core column and voice coil orientation medial wall of the tube is equipped between cylinder.Pass through
The friction that lubricating structure can be reduced effectively between voice coil orientation cylinder and magnetic conductive core column reaches to reduce the generation of heat
Extend the purpose of drive magnet service life.And the range that the sound generating mechanism of bilateral can be such that its sound covers is wider, sound
It imitates.
The lubricating structure includes inner annular plate and the annular outer plate that is placed on outside inner annular plate, inner annular plate and magnetic conductive core column
Tight fit, annular outer plate and voice coil orientation cylinder tight fit, between the inner annular plate upper end and the upper end of annular outer plate, Yi Jihuan
It is connected respectively by an elastic membrane between shape inner panel lower end and the lower end of annular outer plate, and inner annular plate, annular outer plate and elasticity
Film surrounds the annular cavity to form a sealing, and lubricating fluid is enclosed in annular cavity.While reaching preferable lubricant effect also
It can prevent lubricating fluid from revealing well, and can prevent dust from entering between voice coil orientation cylinder and magnetic conductive core column well.
The inner annular plate, annular outer plate and elastic membrane are that same rubber material is made.It is made up of rubber material,
It can be conducive to the tight fit installation of inner annular plate and annular outer plate.It can be packed by squeezing, to reduce for ring
The dimension precision requirement of shape inner panel and annular outer plate, reduces processing cost.
It is each provided on the lateral wall of the magnetic conductive core column and anti-slop serrations on the madial wall of voice coil orientation cylinder.Lubricating fluid
High pressure drives inner annular plate and annular outer plate to be pressed on corresponding side wall, and can be very good to prevent ring by anti-slop serrations
Shape inner panel and the opposite sliding of the side wall of magnetic conductive core column, annular outer plate sliding opposite with the side wall of voice coil orientation cylinder.
The inner annular plate, annular outer plate and elastic membrane are an integral structure.
The elastic membrane is equipped with the valve cock for injecting or being discharged lubricating fluid.
After using the above structure, a kind of both sides of the invention pronunciation coil-moving speaker compared with prior art have with
Lower advantage：First, the range that symmetrically arranged bilateral sound generating mechanism can be such that its sound covers is wider, and audio is good, secondly, sound
Heat small the frictional force between magnetic conductive core column, therefore can effectively reducing sliding friction generation is enclosed, is also just reduced pair
In the magnetic attenuation of inside loudspeakers magnetic element, that is, the degree of the magnetic decaying of magnetic conductive core column and drive magnet is reduced, is carried
The high stability of magnetic property, finally, lubricating fluid is sealing into closed annular cavity, there is no need to add lubricating fluid, with
And it avoids lubricating fluid from falling on cone the case where polluting cone and occurs.
Description of the drawings
Fig. 1 is the structural schematic diagram of the coil-moving speaker of the both sides pronunciation of the present invention.
Fig. 2 is the close-up schematic view in region " A " in Fig. 1.
Wherein, 1, substrate, 2, frame, 2.1, osculum end, 2.2, big opening end, 3, cone, 4, magnetic conductive board, 5, drive magnet,
5.1, centre bore, 6, magnetic conductive core column, 7, voice coil, 8, voice coil orientation cylinder, 9, inner annular plate, 10, annular outer plate, 11, elastic membrane,
12, anti-slop serrations, 13, valve cock, 14, annular cavity.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
The present invention provides a kind of coil-moving speaker of both sides pronunciation, it includes substrate 1, is symmetrically set in 1 both sides of substrate
Two frame 2, a sound generating mechanism is each provided in each side frame 2, and the sound generating mechanism includes cone 3, magnetic conductive board 4, drives
Moving magnet 5, magnetic conductive core column 6, voice coil 7 and voice coil orientation cylinder 8, the drive magnet 5 are clamped between substrate 1 and magnetic conductive board 4,
The osculum end 2.1 of close with frame 2 substrate of magnetic conductive board 41 is fixed, and voice coil 7 is wound in outside voice coil orientation cylinder 8, and with voice coil orientation cylinder 8
It is placed in the centre bore 5.1 of drive magnet 5, one end and one end of cone 3 of voice coil orientation cylinder 8 are fixed, and cone 3 is set up in basin
On frame 2, and the outer rim of the other end of cone 3 and the big opening end 2.2 of frame 2 are fixed, and one end and the substrate 1 of magnetic conductive core column 6 are fixed,
The other end of magnetic conductive core column 6 is inserted into the central through hole of voice coil orientation cylinder 8, and magnetic conductive core column 6 is slidably matched with voice coil orientation cylinder 8,
The lateral wall for reducing magnetic conductive core column 6 and 8 inside of voice coil orientation cylinder are equipped between the magnetic conductive core column 6 and voice coil orientation cylinder 8
The lubricating structure of frictional force between wall.
The lubricating structure includes inner annular plate 9 and the annular outer plate 10 that is placed on outside inner annular plate 9, inner annular plate 9 with lead
6 tight fit of magnetic core column, annular outer plate 10 and 8 tight fit of voice coil orientation cylinder, 9 upper end of the inner annular plate and annular outer plate 10 it is upper
It is connected respectively by an elastic membrane 11 between end and between 9 lower end of inner annular plate and the lower end of annular outer plate 10, and in annular
Plate 9, annular outer plate 10 and elastic membrane 11 surround the annular cavity 14 to form a sealing, and lubricating fluid is enclosed in annular cavity 14.
The inner annular plate 9, annular outer plate 10 and elastic membrane 11 are that same rubber material is made.
It is each provided on the lateral wall of the magnetic conductive core column 6 and anti-slop serrations 12 on the madial wall of voice coil orientation cylinder 8.
The inner annular plate 9, annular outer plate 10 and elastic membrane 11 are an integral structure.
The elastic membrane 11 is equipped with the valve cock 13 for injecting or being discharged lubricating fluid.
The frame 1 is horn-like structure, and osculum end 1.1 is the upper end in attached drawing, and big opening end 1.2 is in attached drawing
Lower end.
Inner annular plate 9, annular outer plate 10 and elastic membrane 11 are an integral structure, and refer to inner annular plate 9,10 and of annular outer plate
11 three of elastic membrane is the monolithic film membrane structure of equal wall thickness made of same material, is being packed into magnetic conductive core column 6 and voice coil orientation cylinder 8
Between when, the part for being close to magnetic conductive core column 6 is inner annular plate 9, and the part for being close to voice coil orientation cylinder 8 is annular outer plate 10,
Transition portion between the two is elastic membrane 11, but three is whole, therefore in 8 phase of magnetic conductive core column 6 and voice coil orientation cylinder
To in sliding process, inner annular plate 9, annular outer plate 10 and 11 three of elastic membrane constantly roll.That is, inner annular plate
Arbitrary point position on 9 can be that rolling is set 11 in elastic membrane, become elastic membrane 11 when being moved with magnetic conductive core column 6
A part is further rolled to the part for becoming annular outer plate 10 in annular outer plate 10.Therefore, inner annular plate 9, annular are outer
Plate 10 and elastic membrane 11 refer to that node, the part for being close to magnetic conductive core column 6 are inner annular plate 9 at any time, are close to voice coil and lead
Part to cylinder 8 is annular outer plate 10, and transition portion between the two is elastic membrane 11.
Preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This hair
Bright to be not only limited to above example, concrete structure is allowed to vary, all institutes in the protection domain of demand for independence of the present invention
The various change of work is within the scope of the invention.
Claims (1)
1. a kind of coil-moving speaker of both sides pronunciation, it is characterised in that：It includes substrate (1), is symmetrically set in substrate (1) both sides
Two frame (2), is each provided with a sound generating mechanism in each side frame (2), the sound generating mechanism includes cone (3), leads
Magnetic sheet (4), drive magnet (5), magnetic conductive core column (6), voice coil (7) and voice coil orientation cylinder (8), the drive magnet (5) clamp
Between substrate (1) and magnetic conductive board (4), the osculum end (2.1) of magnetic conductive board (4) substrate (1) close with frame (2) is fixed, voice coil (7)
It is wound in voice coil orientation cylinder (8) outside, and is placed in the centre bore (5.1) of drive magnet (5) with voice coil orientation cylinder (8), voice coil
One end of guide cylinder (8) and one end of cone (3) are fixed, and cone (3) is set up in frame (2), and the other end of cone (3)
The big opening end (2.2) of outer rim and frame (2) is fixed, and one end of magnetic conductive core column (6) and substrate (1) are fixed, magnetic conductive core column (6) it is another
One end is inserted into the central through hole of voice coil orientation cylinder (8), and magnetic conductive core column (6) is slidably matched with voice coil orientation cylinder (8), the magnetic conduction
The lateral wall for reducing magnetic conductive core column (6) and voice coil orientation cylinder (8) inside are equipped between stem (6) and voice coil orientation cylinder (8)
The lubricating structure of frictional force between wall；
The lubricating structure includes inner annular plate (9) and is placed on the annular outer plate (10) of inner annular plate (9) outside, inner annular plate (9)
With magnetic conductive core column (6) tight fit, annular outer plate (10) and voice coil orientation cylinder (8) tight fit, inner annular plate (9) upper end and ring
Pass through a bullet respectively between the upper end of shape outside plate (10) and between inner annular plate (9) lower end and the lower end of annular outer plate (10)
Property film (11) connect, and inner annular plate (9), annular outer plate (10) and elastic membrane (11) surround the annular cavity to form a sealing
(14), lubricating fluid is enclosed in annular cavity (14)；
The inner annular plate (9), annular outer plate (10) and elastic membrane (11) are that same rubber material is made；
It is each provided on the lateral wall of the magnetic conductive core column (6) and anti-slop serrations (12) on the madial wall of voice coil orientation cylinder (8)；
The inner annular plate (9), annular outer plate (10) and elastic membrane (11) are an integral structure；
The elastic membrane (11) is equipped with the valve cock (13) for injecting or being discharged lubricating fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510613280.8A CN105163248B (en) | 2015-09-23 | 2015-09-23 | The coil-moving speaker of both sides pronunciation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510613280.8A CN105163248B (en) | 2015-09-23 | 2015-09-23 | The coil-moving speaker of both sides pronunciation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105163248A CN105163248A (en) | 2015-12-16 |
| CN105163248B true CN105163248B (en) | 2018-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510613280.8A Active CN105163248B (en) | 2015-09-23 | 2015-09-23 | The coil-moving speaker of both sides pronunciation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105163248B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275076A (en) * | 2018-11-22 | 2019-01-25 | 深圳市美妙之音科技有限公司 | A kind of fine definition horizontal proliferation formula modulated air steam loudspeaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465207A (en) * | 2001-07-19 | 2003-12-31 | 松下电器产业株式会社 | Speaker and method of manufacturing the speaker |
| JP2009094626A (en) * | 2007-10-04 | 2009-04-30 | Pioneer Electronic Corp | Magnetic circuit for loudspeaker and loudspeaker |
| US7711138B2 (en) * | 2005-04-18 | 2010-05-04 | Howze Bruce W | Loudspeaker including a cone circumscribed by a stiffener |
| CN202679612U (en) * | 2012-07-25 | 2013-01-16 | 陈权江 | Speaker with dual-magnetic circuit system |
| CN204131720U (en) * | 2014-09-29 | 2015-01-28 | 联想(北京)有限公司 | Loud speaker and electronic equipment |
-
2015
- 2015-09-23 CN CN201510613280.8A patent/CN105163248B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465207A (en) * | 2001-07-19 | 2003-12-31 | 松下电器产业株式会社 | Speaker and method of manufacturing the speaker |
| US7711138B2 (en) * | 2005-04-18 | 2010-05-04 | Howze Bruce W | Loudspeaker including a cone circumscribed by a stiffener |
| JP2009094626A (en) * | 2007-10-04 | 2009-04-30 | Pioneer Electronic Corp | Magnetic circuit for loudspeaker and loudspeaker |
| CN202679612U (en) * | 2012-07-25 | 2013-01-16 | 陈权江 | Speaker with dual-magnetic circuit system |
| CN204131720U (en) * | 2014-09-29 | 2015-01-28 | 联想(北京)有限公司 | Loud speaker and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN105163248A (en) | 2015-12-16 |
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Inventor after: Yan Jun Inventor after: Zhang Yi Inventor before: Li Ziquan |
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