CN105246007B - Dynamic speaker - Google Patents
Dynamic speaker Download PDFInfo
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- CN105246007B CN105246007B CN201510613297.3A CN201510613297A CN105246007B CN 105246007 B CN105246007 B CN 105246007B CN 201510613297 A CN201510613297 A CN 201510613297A CN 105246007 B CN105246007 B CN 105246007B
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- voice coil
- coil orientation
- orientation cylinder
- plate
- cone
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Abstract
The invention discloses a kind of dynamic speakers, it includes frame, cone, the drive magnet with storage tank, voice coil and voice coil orientation cylinder, evagination forms the magnetic conductive core column being slidably matched with the central through hole of voice coil orientation cylinder to the slot bottom of storage tank vertically, it is characterised in that：Connecting plate is equipped between the upper end of cone and the lower end of voice coil orientation cylinder, the upper end of cone is fixed with connecting plate, the removable connection in lower end of connecting plate and voice coil orientation cylinder is equipped with to reduce the lubricating structure of frictional force between the lateral wall of magnetic conductive core column and voice coil orientation medial wall of the tube between the magnetic conductive core column and voice coil orientation cylinder.The present invention provides a kind of dynamic speaker, rub in its voice coil vibrations voiced process generation thermal energy it is few, so as to improve the time of loud speaker continuous work, and when cone damages, user can need not scrap entire loud speaker with self-changeable cone, finally improve the service life of entire loud speaker.
Description
Technical field
The present invention relates to the technical field of electro-acoustic transducer device, a kind of specifically dynamic speaker.
Background technology
Dynamic speaker is also known as coil-moving speaker.Its operation principle is according to Faraday's law, works as current－carrying conductor
When passing through magnetic field, an electric power can be subject to, direction, which meets, not carrys out bright left hand rule, and 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 inputs alternation tone currents, voice coil is subject to one
A alternation motive force generates alternate motion, drives cone vibration, promotes 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 can generate certain heat, if the heat of above-mentioned generation cannot be arranged in time
Go out, it will drive magnet is made to generate hot demagnetization effects, ultimately results in 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 self-radiating, this also just constrains the time of the continuous work of supersound projector, and operating personnel go out
In the requirement the considerations of and often there are long-continued situation, this will cause the magnetic property of drive magnet to decay, thus
Reduce the service life of loud speaker.Namely supersound projector is easily damaged after long-term continuous use in the prior art for this
The problem of where.
Further, since its cone is the component being directly exposed under external environment in loud speaker, therefore used in user
Be easier to be subject to external force damaged in journey, and with the damage of cone, entire loud speaker also cannot normal use, can only do and scrap
Processing, therefore cause larger waste.Certainly, the loud speaker of the prior art can also pass through the repair of specialty when cone damages
Personnel can place under repair, but the high labor cost that repair procedures are not only repaired, but also maintenance process is complex.Even
The cost of repair is higher than the price of new loud speaker, therefore user when running into problems, often uses in the prior art
Processing is scrapped, this has resulted in substantial amounts of waste.
The content of the invention
The technical problems to be solved by the invention are：A kind of dynamic speaker is provided, in voice coil vibrations voiced process
Rubbing, the thermal energy generated is few, and so as to improve the time of loud speaker continuous work, and user can voluntarily more when cone damages
Entire loud speaker need not be scrapped by changing cone, finally improve the service life of entire loud speaker.
The technical solution used in the present invention is：A kind of dynamic speaker is provided, it includes frame, cone, with appearance
The drive magnet, voice coil and voice coil orientation cylinder of slot are put, drive magnet is located at lower face and frame corresponding to the notch of storage tank
Osculum end fix, voice coil is wound in outside voice coil orientation cylinder, and is placed in voice coil orientation cylinder in the storage tank of drive magnet, paper
Frame is arranged in frame, and the outer rim of the lower end of cone and the big opening end of frame are fixed, the slot bottom of storage tank spirogyrate vertically
The magnetic conductive core column being slidably matched into the central through hole with voice coil orientation cylinder, sets between the upper end of cone and the lower end of voice coil orientation cylinder
There is connecting plate, upper end and the connecting plate of cone are fixed, the removable connection in lower end of connecting plate and voice coil orientation cylinder, the magnetic conduction core
It is equipped with to reduce frictional force between the lateral wall of magnetic conductive core column and voice coil orientation medial wall of the tube between column and voice coil orientation cylinder
Lubricating structure.Can be when cone breakage by connecting plate, related connecting plate dismounting and change together, without will entirely raise one's voice
Device is scrapped, and the friction between voice coil orientation cylinder and magnetic conductive core column can be effectively reduced by lubricating structure, so as to reduce heat
Generation, achieve the purpose that extend drive magnet service life.
The lubricating structure includes inner annular plate and the annular outer plate being 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 preferable lubricant effect is reached 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.So as to reduce for ring
The dimension precision requirement of shape inner panel and annular outer plate, reduces processing cost.
Anti-slop serrations are each provided on the lateral wall of the magnetic conductive core column and 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 slip of the side wall of magnetic conductive core column, annular outer plate slip 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 to inject or discharge the valve cock of lubricating fluid.
The removable connection in lower end of connecting plate and voice coil orientation cylinder refers to, under the upper surface and voice coil orientation cylinder of connecting plate
It is bonded between end face.
The voice coil orientation cylinder is upper end opening, the tubular structure of lower end sealing, under near on the side wall of voice coil orientation cylinder
The position at end is equipped with the pressure release through hole through voice coil orientation cylinder side wall.It can be to avoid magnetic conductive core column in loud speaker by pressure release through hole
Air pressure is formed in the corresponding cavity in lower face, influences the vibration sounding of voice coil.
After more than structure, a kind of dynamic speaker of the invention has the following advantages compared with prior art：It is first
First, the dismounting with cone, therefore the cone easy for users to change when cone damages can be facilitated by connecting plate, saves dimension
Accomplish this, secondly, can make the frictional force between voice coil and magnetic conductive core column small by lubricating structure, therefore can effectively reduce
The heat that sliding friction generates, also just reduces the magnetic attenuation for inside loudspeakers magnetic element, that is, reduces magnetic conduction
The degree of the magnetic of stem and drive magnet attenuation, improves the stability of magnetic property, finally, lubricating fluid is to be sealing into closed ring
Intracavitary in shape pollutes happening for cone there is no need to add lubricating fluid and lubricating fluid is avoided to drop on cone.
Description of the drawings
Fig. 1 is the structure diagram of the dynamic speaker of the present invention.
Fig. 2 is the close-up schematic view in " A " region in Fig. 1.
Wherein, 1, frame, 1.1, osculum end, 1.2, big opening end, 2, cone, 3, drive magnet, 3.1, storage tank, 4, sound
Circle, 5, voice coil orientation cylinder, 6, magnetic conductive core column, 7, connecting plate, 8, pressure release through hole, 9, inner annular plate, 10, annular outer plate, 11, elasticity
Film, 12, anti-slop serrations, 13, valve cock, 14, annular cavity.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
The present invention provides a kind of dynamic speaker, it includes frame 1, cone 2, the drive magnet with storage tank 3.1
3rd, voice coil 4 and voice coil orientation cylinder 5, drive magnet 3 are located at the lower face corresponding to the notch of storage tank 3.1 and the osculum of frame 1
End 1.1 is fixed, and voice coil 4 is wound in outside voice coil orientation cylinder 5, and the storage tank 3.1 of drive magnet 3 is placed in voice coil orientation cylinder 5
Interior, cone 2 is set up in frame 1, and the outer rim of the lower end of cone 2 and the big opening end 1.2 of frame 1 are fixed, the slot of storage tank 3.1
Evagination forms the magnetic conductive core column 6 being slidably matched with the central through hole of voice coil orientation cylinder 5, the upper end of cone 2 and voice coil vertically at bottom
Connecting plate 7 is equipped between the lower end of guide cylinder 5, upper end and the connecting plate 7 of cone 2 are fixed, connecting plate 7 and voice coil orientation cylinder 5
The removable connection in lower end, be equipped with to reduce between the magnetic conductive core column 6 and voice coil orientation cylinder 5 lateral wall of magnetic conductive core column 6 with
The lubricating structure of frictional force between 5 madial wall of voice coil orientation cylinder.
The lubricating structure includes inner annular plate 9 and the annular outer plate 10 being placed on outside inner annular plate 9, and inner annular plate 9 is with leading
6 tight fit of magnetic core column, annular outer plate 10 and 5 tight fit of voice coil orientation cylinder, 9 upper end of inner annular plate and annular outer plate 10
It is connected respectively by an elastic membrane 11 between upper end and between 9 lower end of inner annular plate and the lower end of annular outer plate 10, and annular
Inner panel 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.
Anti-slop serrations 12 are each provided on the lateral wall of the magnetic conductive core column 6 and on the madial wall of voice coil orientation cylinder 5.
The inner annular plate 9, annular outer plate 10 and elastic membrane 11 are an integral structure.
The elastic membrane 11 is equipped with to inject or discharge the valve cock 13 of lubricating fluid.
The removable connection in lower end of connecting plate 7 and voice coil orientation cylinder 5 refers to, the upper surface of connecting plate 7 and voice coil orientation cylinder 5
Lower face between be bonded.
The voice coil orientation cylinder 5 is upper end opening, and the tubular structure of lower end sealing is near on the side wall of voice coil orientation cylinder 5
The position of lower end is equipped with the pressure release through hole 8 through 5 side wall of voice coil orientation cylinder.
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, annular outer plate 10
It is the monolithic film membrane structure of grade wall thickness made of similary material with 11 three of elastic membrane, is being packed into magnetic conductive core column 6 and voice coil orientation
When between cylinder 5, 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 5 is annular outer plate
10, transition portion is elastic membrane 11 therebetween, but three is whole, therefore in magnetic conductive core column 6 and voice coil orientation cylinder 5
With respect in sliding process, inner annular plate 9, annular outer plate 10 and 11 three of elastic membrane constantly roll.That is, in annular
Arbitrary point position on plate 9 when being moved with magnetic conductive core column 6, can be in rolling to elastic membrane 11, become elastic membrane
11 part is further rolled to the part for becoming annular outer plate 10 in annular outer plate 10.Therefore, inner annular plate 9, ring
Shape outside 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
The part of voice coil orientation cylinder 5 is annular outer plate 10, and transition portion is elastic membrane 11 therebetween.
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 present invention.
Claims (1)
1. a kind of dynamic speaker, it includes frame (1), cone (2), drive magnet (3), sound with storage tank (3.1)
(4) and voice coil orientation cylinder (5) are enclosed, drive magnet (3) is located at lower face and frame (1) corresponding to the notch of storage tank (3.1)
Osculum end (1.1) it is fixed, voice coil (4) is wound in voice coil orientation cylinder (5) outside, and is placed in driving magnetic with voice coil orientation cylinder (5)
In the storage tank (3.1) of iron (3), cone (2) is set up in frame (1), and the outer rim of the lower end of cone (2) and frame (1)
Big opening end (1.2) is fixed, and evagination is formed and the slip of the central through hole of voice coil orientation cylinder (5) slot bottom of storage tank (3.1) vertically
The magnetic conductive core column (6) of cooperation, it is characterised in that：Connecting plate is equipped between the upper end of cone (2) and the lower end of voice coil orientation cylinder (5)
(7), the upper end of cone (2) and connecting plate (7) are fixed, the removable connection in lower end of connecting plate (7) and voice coil orientation cylinder (5), institute
It states and the lateral wall for reducing magnetic conductive core column (6) and voice coil orientation cylinder is equipped between magnetic conductive core column (6) and voice coil orientation cylinder (5)
(5) between madial wall frictional force lubricating structure；
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；
Anti-slop serrations (12) are each provided on the lateral wall of the magnetic conductive core column (6) and 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 to inject or discharge the valve cock (13) of lubricating fluid；
The removable connection in lower end of connecting plate (7) and voice coil orientation cylinder (5) refers to, the upper surface of connecting plate (7) and voice coil orientation
It is bonded between the lower face of cylinder (5)；
The voice coil orientation cylinder (5) is upper end opening, and the tubular structure of lower end sealing is near on the side wall of voice coil orientation cylinder (5)
The position of lower end is equipped with the pressure release through hole (8) through voice coil orientation cylinder (5) side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510613297.3A CN105246007B (en) | 2015-09-23 | 2015-09-23 | Dynamic speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510613297.3A CN105246007B (en) | 2015-09-23 | 2015-09-23 | Dynamic speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105246007A CN105246007A (en) | 2016-01-13 |
| CN105246007B true CN105246007B (en) | 2018-06-05 |
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ID=55043441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510613297.3A Active CN105246007B (en) | 2015-09-23 | 2015-09-23 | Dynamic speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105246007B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166658A (en) * | 2020-02-21 | 2020-05-19 | 张明 | Neurological acupuncture recovery instrument for neurology |
| CN113055793A (en) * | 2021-03-04 | 2021-06-29 | 嵊州市锦声电子有限公司 | Intelligent loudspeaker box cone and preparation process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266243Y (en) * | 1996-06-13 | 1997-10-29 | 陈正宗 | Coaxial double-field double-voice coil loudspeaker |
| CN1418449A (en) * | 2001-02-13 | 2003-05-14 | 松下电器产业株式会社 | Speaker |
| JP2009094626A (en) * | 2007-10-04 | 2009-04-30 | Pioneer Electronic Corp | Magnetic circuit for loudspeaker and loudspeaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4604415B2 (en) * | 2001-07-19 | 2011-01-05 | パナソニック株式会社 | Speaker |
| US7711138B2 (en) * | 2005-04-18 | 2010-05-04 | Howze Bruce W | Loudspeaker including a cone circumscribed by a stiffener |
-
2015
- 2015-09-23 CN CN201510613297.3A patent/CN105246007B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266243Y (en) * | 1996-06-13 | 1997-10-29 | 陈正宗 | Coaxial double-field double-voice coil loudspeaker |
| CN1418449A (en) * | 2001-02-13 | 2003-05-14 | 松下电器产业株式会社 | Speaker |
| JP2009094626A (en) * | 2007-10-04 | 2009-04-30 | Pioneer Electronic Corp | Magnetic circuit for loudspeaker and loudspeaker |
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| Publication number | Publication date |
|---|---|
| CN105246007A (en) | 2016-01-13 |
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