CN105246007A - Dynamic speaker - Google Patents
Dynamic speaker Download PDFInfo
- Publication number
- CN105246007A CN105246007A CN201510613297.3A CN201510613297A CN105246007A CN 105246007 A CN105246007 A CN 105246007A CN 201510613297 A CN201510613297 A CN 201510613297A CN 105246007 A CN105246007 A CN 105246007A
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- China
- Prior art keywords
- voice coil
- guide cylinder
- loudspeaker voice
- coil loudspeaker
- coil guide
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Abstract
The invention discloses a dynamic speaker, comprising a frame, a cone, a drive magnet with a containing groove, a voice coil and a voice coil guide cylinder. The groove bottom of the containing groove is convex in an axial direction so as to form a magnetic central pole in slide cooperation with a central through hole of the voice coil guide cylinder. The dynamic speaker is characterized in that a connecting plate is arranged between the upper end of the cone and the lower end of the voice coil guide cylinder; the upper end of the cone is fastened to the connecting plate; the connecting plate and the lower end of the voice coil guide cylinder are in detachable connection; and a lubricating mechanism for reducing friction force between the outer side wall of the magnetic central pole and the inner side wall of the voice coil guide cylinder is arranged between the magnetic central pole and the voice coil guide cylinder. According to the dynamic speaker, little heat is produced due to friction in sound production through vibration of the voice coil, so that the continuous working time of the speaker is prolonged; furthermore, when the cone is damaged, a user can change the cone by him/herself, the whole speaker is not discarded, so that the service life of the whole speaker is prolonged.
Description
Technical field
The present invention relates to the technical field of electro-acoustic transducer device, specifically a kind of dynamic speaker.
Background technology
Dynamic speaker is also called coil-moving speaker.Its operation principle is according to Faraday's law, and when current－carrying conductor is by magnetic field, can be subject to an electric power, its direction meets not carrys out bright left hand rule, and power and electric current, magnetic direction are orthogonal, and stressed size is directly proportional to electric current, conductor length, magnetic flux density.When voice coil loudspeaker voice coil input alternation tone currents, voice coil loudspeaker voice coil is subject to alternation motive force and produces alternate motion, drives cone vibration, repeatedly promotes air and sounding.
As can be seen here, in speaker operation process, voice coil loudspeaker voice coil is at oscillation exchange, therefore the friction between voice coil loudspeaker voice coil and air and the friction between voice coil loudspeaker voice coil and drive magnet all can produce certain heat, if the heat of above-mentioned generation can not be discharged in time, drive magnet will be made to produce thermal reunite effect, finally cause the magnetic property of drive magnet to reduce or demagnetization completely.Especially in powerful loud speaker, the amplitude of its voice coil loudspeaker voice coil and vibration frequency are all higher, therefore its speed producing heat energy is far longer than the speed of loud speaker self-radiating, this also just constrains the time of the continuous operation of supersound projector, and often there is long-continued situation for the consideration of instructions for use in operating personnel, this will cause the magnetic property of drive magnet to be decayed, and thereby reduces the useful life of loud speaker.This namely in prior art supersound projector long-term use continuously after hold flimsy problem place.
In addition, because its cone in loud speaker is the parts directly under the outer boundary's environment that exposes outside, be therefore easier to be subject to external force breakage in user's use procedure, and along with the damage of cone, whole loud speaker also just can not normally use, and can only do and scrap process, therefore causes larger waste.Certainly, the loud speaker of prior art also can be able to be placed under repair by the maintenance personal of specialty when cone damages, but the cost of labor that repair procedures is not only keeped in repair is high, and maintenance process is comparatively complicated.The cost keeped in repair even is higher than the price of new loud speaker, and therefore in prior art, user is when running into problems, and adopt often and scrap process, this just causes a large amount of wastes.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of dynamic speaker, in its voice coil vibrations voiced process, fricative heat energy is few, thus improve the time of loud speaker continuous operation, and when cone damages user can self-changeable cone without the need to scrapping whole loud speaker, finally improve the useful life of whole loud speaker.
The technical solution used in the present invention is: provide a kind of dynamic speaker, it comprises frame, cone, with the drive magnet of storage tank, voice coil loudspeaker voice coil and voice coil loudspeaker voice coil guide cylinder, the osculum end that drive magnet is positioned at lower surface corresponding to the notch of storage tank and frame is fixed, voice coil loudspeaker voice coil is wound in outside voice coil loudspeaker voice coil guide cylinder, and be placed in the storage tank of drive magnet with voice coil loudspeaker voice coil guide cylinder, cone is set up in frame, and the outer rim of the lower end of cone and the big opening end of frame are fixed, the magnetic conductive core column that the bottom land evagination formation vertically of storage tank and the central through hole of voice coil loudspeaker voice coil guide cylinder are slidably matched, connecting plate is provided with between the upper end of cone and the lower end of voice coil loudspeaker voice coil guide cylinder, upper end and the connecting plate of cone are fixed, connecting plate is connected with the lower end of voice coil loudspeaker voice coil guide cylinder is removable, the lubricating structure of frictional force between lateral wall for reducing magnetic conductive core column and voice coil loudspeaker voice coil guide cylinder madial wall is provided with between described magnetic conductive core column and voice coil loudspeaker voice coil guide cylinder.Can when cone breakage by connecting plate, related connecting plate dismounting and change together, without the need to whole loud speaker is scrapped, the friction between voice coil loudspeaker voice coil guide cylinder and magnetic conductive core column effectively can be reduced by lubricating structure, thus reduce the generation of heat, reach the object extending drive magnet useful life.
Described lubricating structure comprises inner annular plate and is placed on the annular outer plate outside inner annular plate, inner annular plate and magnetic conductive core column's tight fit, annular outer plate and voice coil loudspeaker voice coil guide cylinder tight fit, between described inner annular plate upper end and the upper end of annular outer plate, and connect respectively by an elastic membrane between inner annular plate lower end and the lower end of annular outer plate, and inner annular plate, annular outer plate and elastic membrane surround the annular cavity that formation one seals, in annular cavity, enclose lubricating fluid.Can also well prevent lubricating fluid from revealing while reaching good lubricant effect, can well prevent again dust from entering between voice coil loudspeaker voice coil guide cylinder and magnetic conductive core column.
Described inner annular plate, annular outer plate and elastic membrane are same quality of rubber materials and make.Made by quality of rubber materials, the tight fit that can be conducive to inner annular plate and annular outer plate is installed.Namely can be loaded by extruding.Thus the dimension precision requirement reduced for inner annular plate and annular outer plate, decrease processing cost.
Anti-slop serrations is provided with all separately on the lateral wall of described magnetic conductive core column and on the madial wall of voice coil loudspeaker voice coil guide cylinder.The high pressure of lubricating fluid orders about inner annular plate and annular outer plate is pressed on each self-corresponding sidewall, and can well prevent the sidewall relative sliding of the sidewall relative sliding of inner annular plate and magnetic conductive core column, annular outer plate and voice coil loudspeaker voice coil guide cylinder by anti-slop serrations.
Described inner annular plate, annular outer plate and elastic membrane are integral type structure.
Described elastic membrane is provided with the valve cock for injecting or discharge lubricating fluid.
Connecting plate referred to the lower end of voice coil loudspeaker voice coil guide cylinder removable connection, bonding between the upper surface of connecting plate and the lower surface of voice coil loudspeaker voice coil guide cylinder.
Described voice coil loudspeaker voice coil guide cylinder is upper end open, and the tubular structure of lower end sealing, on the sidewall of voice coil loudspeaker voice coil guide cylinder, the position of nearly lower end is provided with the pressure release through hole running through voice coil loudspeaker voice coil guide cylinder sidewall.Can avoid forming air pressure in cavity that in loud speaker, magnetic conductive core column lower surface is corresponding by pressure release through hole, affect the vibration sounding of voice coil loudspeaker voice coil.
After adopting above structure, a kind of dynamic speaker of the present invention compared with prior art has the following advantages: first, by connecting plate can conveniently with the dismounting of cone, therefore user's self-changeable cone is convenient to when cone damages, save maintenance cost, secondly, the frictional force between voice coil loudspeaker voice coil and magnetic conductive core column can be made little by lubricating structure, therefore the heat that sliding friction produces can effectively be reduced, also the magnetic attenuation for inside loudspeakers magnetic element is just reduced, namely the degree of the magnetic decay of magnetic conductive core column and drive magnet is reduced, improve the stability of magnetic property, finally, lubricating fluid is sealing in airtight annular cavity, therefore without the need to adding lubricating fluid, and avoid lubricating fluid to drop to cone pollutes the situation of cone to occur.
Accompanying drawing explanation
Fig. 1 is the structural representation of 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, voice coil loudspeaker voice coil, 5, voice coil loudspeaker voice coil guide cylinder, 6, magnetic conductive core column, 7, connecting plate, 8, pressure release through hole, 9, inner annular plate, 10, annular outer plate, 11, elastic membrane, 12, anti-slop serrations, 13, valve cock, 14, annular cavity.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The invention provides a kind of dynamic speaker, it comprises frame 1, cone 2, with the drive magnet 3 of storage tank 3.1, voice coil loudspeaker voice coil 4 and voice coil loudspeaker voice coil guide cylinder 5, the osculum end 1.1 that drive magnet 3 is positioned at lower surface corresponding to the notch of storage tank 3.1 and frame 1 is fixed, voice coil loudspeaker voice coil 4 is wound in outside voice coil loudspeaker voice coil guide cylinder 5, and be placed in the storage tank 3.1 of drive magnet 3 with voice coil loudspeaker voice coil guide cylinder 5, cone 2 is set up in frame 1, and the big opening end 1.2 of the outer rim of the lower end of cone 2 and frame 1 is fixed, the magnetic conductive core column 6 that the bottom land evagination formation vertically of storage tank 3.1 and the central through hole of voice coil loudspeaker voice coil guide cylinder 5 are slidably matched, connecting plate 7 is provided with between the upper end of cone 2 and the lower end of voice coil loudspeaker voice coil guide cylinder 5, upper end and the connecting plate 7 of cone 2 are fixed, connecting plate 7 is connected with the lower end of voice coil loudspeaker voice coil guide cylinder 5 is removable, the lubricating structure of frictional force between lateral wall for reducing magnetic conductive core column 6 and voice coil loudspeaker voice coil guide cylinder 5 madial wall is provided with between described magnetic conductive core column 6 and voice coil loudspeaker voice coil guide cylinder 5.
The annular outer plate 10 that described lubricating structure comprises inner annular plate 9 and is placed on outside inner annular plate 9, inner annular plate 9 and magnetic conductive core column 6 tight fit, annular outer plate 10 and voice coil loudspeaker voice coil guide cylinder 8 tight fit, between described inner annular plate 9 upper end and the upper end of annular outer plate 10, and connect respectively by an elastic membrane 11 between the lower end of inner annular plate 9 lower end and annular outer plate 10, and inner annular plate 9, annular outer plate 10 and elastic membrane 11 surround the annular cavity 14 that formation one seals, in annular cavity 14, enclose lubricating fluid.
Described inner annular plate 9, annular outer plate 10 and elastic membrane 11 are same quality of rubber materials and make.
Anti-slop serrations 12 is provided with all separately on the lateral wall of described magnetic conductive core column 6 and on the madial wall of voice coil loudspeaker voice coil guide cylinder 8.
Described inner annular plate 9, annular outer plate 10 and elastic membrane 11 is integral type structure.
Described elastic membrane 11 is provided with the valve cock 13 for injecting or discharge lubricating fluid.
Connecting plate 7 referred to the lower end of voice coil loudspeaker voice coil guide cylinder 5 removable connection, bonding between the upper surface of connecting plate 7 and the lower surface of voice coil loudspeaker voice coil guide cylinder 5.
Described voice coil loudspeaker voice coil guide cylinder 5 is upper end open, and the tubular structure of lower end sealing, on the sidewall of voice coil loudspeaker voice coil guide cylinder 5, the position of nearly lower end is provided with the pressure release through hole 8 running through voice coil loudspeaker voice coil guide cylinder 5 sidewall.
Described frame 1 is horn-like structure, and its osculum end 1.1 is the upper end in accompanying drawing, and big opening end 1.2 is the lower end in accompanying drawing.
Inner annular plate 9, annular outer plate 10 and elastic membrane 11 are integral type structure, refer to inner annular plate 9, annular outer plate 10 and elastic membrane 11 three be same material make etc. the monolithic film membrane structure of wall thickness, when loading between magnetic conductive core column 6 and voice coil loudspeaker voice coil guide cylinder 5, the part being close to magnetic conductive core column 6 is inner annular plate 9, the part being close to voice coil loudspeaker voice coil guide cylinder 5 is annular outer plate 10, therebetween transition portion is elastic membrane 11, but three is entirety, therefore in magnetic conductive core column 6 and voice coil loudspeaker voice coil guide cylinder 5 relative sliding process, inner annular plate 9, annular outer plate 10 and elastic membrane 11 three are constantly rollings.That is, the position, arbitrfary point in inner annular plate 9, when moving along with magnetic conductive core column 6, it can be that rolling to put in elastic membrane 11, becomes a part for elastic membrane 11, rolls further to annular outer plate 10, become a part for annular outer plate 10.Therefore, inner annular plate 9, annular outer plate 10 and elastic membrane 11 refer to, node at any time, and the part being close to magnetic conductive core column 6 is inner annular plate 9, and the part being close to voice coil loudspeaker voice coil guide cylinder 5 is annular outer plate 10, and transition portion is elastic membrane 11 therebetween.
Just preferred embodiment of the present invention is described above, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete structure allows to change, and all various changes done in the protection range of demand for independence of the present invention are all in protection scope of the present invention.
Claims (8)
1. a dynamic speaker, it comprises frame (1), cone (2), with the drive magnet (3) of storage tank (3.1), voice coil loudspeaker voice coil (4) and voice coil loudspeaker voice coil guide cylinder (5), the osculum end (1.1) of the lower surface corresponding to notch and frame (1) that drive magnet (3) is positioned at storage tank (3.1) is fixed, voice coil loudspeaker voice coil (4) is wound in voice coil loudspeaker voice coil guide cylinder (5) outward, and be placed in the storage tank (3.1) of drive magnet (3) with voice coil loudspeaker voice coil guide cylinder (5), cone (2) is set up in frame (1), and the big opening end (1.2) of the outer rim of the lower end of cone (2) and frame (1) is fixed, the magnetic conductive core column (6) that the bottom land evagination formation vertically of storage tank (3.1) and the central through hole of voice coil loudspeaker voice coil guide cylinder (5) are slidably matched, it is characterized in that: between the upper end of cone (2) and the lower end of voice coil loudspeaker voice coil guide cylinder (5), be provided with connecting plate (7), the upper end of cone (2) and connecting plate (7) are fixed, connecting plate (7) is connected with the lower end of voice coil loudspeaker voice coil guide cylinder (5) is removable, the lubricating structure of frictional force between lateral wall for reducing magnetic conductive core column (6) and voice coil loudspeaker voice coil guide cylinder (5) madial wall is provided with between described magnetic conductive core column (6) and voice coil loudspeaker voice coil guide cylinder (5).
2. dynamic speaker according to claim 1, it is characterized in that: described lubricating structure comprises inner annular plate (9) and is placed on inner annular plate (9) annular outer plate outward (10), inner annular plate (9) and magnetic conductive core column (6) tight fit, annular outer plate (10) and voice coil loudspeaker voice coil guide cylinder (8) tight fit, between the upper end of described inner annular plate (9) upper end and annular outer plate (10), and connect respectively by an elastic membrane (11) between the lower end of inner annular plate (9) lower end and annular outer plate (10), and inner annular plate (9), annular outer plate (10) and elastic membrane (11) surround the annular cavity (14) that formation one seals, lubricating fluid is enclosed in annular cavity (14).
3. dynamic speaker according to claim 2, is characterized in that: described inner annular plate (9), annular outer plate (10) and elastic membrane (11) are same quality of rubber materials and make.
4. dynamic speaker according to claim 3, is characterized in that: be provided with anti-slop serrations (12) all separately on the lateral wall of described magnetic conductive core column (6) and on the madial wall of voice coil loudspeaker voice coil guide cylinder (8).
5. dynamic speaker according to claim 3, is characterized in that: described inner annular plate (9), annular outer plate (10) and elastic membrane (11) are integral type structure.
6. dynamic speaker according to claim 1, is characterized in that: described elastic membrane (11) is provided with the valve cock (13) for injecting or discharge lubricating fluid.
7. dynamic speaker according to claim 1, it is characterized in that: connecting plate (7) with refer to lower end removable connection of voice coil loudspeaker voice coil guide cylinder (5), bonding between the upper surface of connecting plate (7) and the lower surface of voice coil loudspeaker voice coil guide cylinder (5).
8. dynamic speaker according to claim 1, it is characterized in that: described voice coil loudspeaker voice coil guide cylinder (5) is upper end open, the tubular structure of lower end sealing, on the sidewall of voice coil loudspeaker voice coil guide cylinder (5), the position of nearly lower end is provided with the pressure release through hole (8) running through voice coil loudspeaker voice coil guide cylinder (5) sidewall.
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 true CN105246007A (en) | 2016-01-13 |
| CN105246007B CN105246007B (en) | 2018-06-05 |
Family
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 |
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| Country | Link |
|---|---|
| CN (1) | CN105246007B (en) |
Cited By (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 (5)
| 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 |
| US20040037446A1 (en) * | 2001-07-19 | 2004-02-26 | Akinori Hasegawa | Speaker and method of manufacturing the speaker |
| US20060233416A1 (en) * | 2005-04-18 | 2006-10-19 | 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 |
-
2015
- 2015-09-23 CN CN201510613297.3A patent/CN105246007B/en active Active
Patent Citations (5)
| 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 |
| US20040037446A1 (en) * | 2001-07-19 | 2004-02-26 | Akinori Hasegawa | Speaker and method of manufacturing the speaker |
| US20060233416A1 (en) * | 2005-04-18 | 2006-10-19 | 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105246007B (en) | 2018-06-05 |
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