CN102655621A - Opened type loudspeaker device - Google Patents
Opened type loudspeaker device Download PDFInfo
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- CN102655621A CN102655621A CN201210148975XA CN201210148975A CN102655621A CN 102655621 A CN102655621 A CN 102655621A CN 201210148975X A CN201210148975X A CN 201210148975XA CN 201210148975 A CN201210148975 A CN 201210148975A CN 102655621 A CN102655621 A CN 102655621A
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- vibrating diaphragm
- voice coil
- support
- open type
- speaker unit
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Abstract
The invention discloses an opened type loudspeaker device, comprising a bracket, a vibration film with an inner hole at a center, a voice coil, a positioning support chip for supporting the voice coil, and a magnetic path system, wherein the bracket is concave inwards to form a cavity with a volume; an outer end of the vibration film is connected with an external part of the bracket; an inner end of the vibration film is connected with a coil frame of the voice coil; the voice coil is arranged in the magnetic path system; and the positioning support chip is located between the vibration film and the bracket. The opened type loudspeaker device is characterized in that: the vibration film is provided with at least one through hole capable of effectively releasing an air pressure in a small air chamber when the vibration film vibrates; at least one opening is arranged on a wall of the bracket; and an edge of the opening extends outwards to form an annular wall. The opened type loudspeaker device disclosed by the invention can normally carry out sound production without mounting a traditional box body, so as to simplify a loudspeaker, remove the sound pollution of the box body, improve the sound quality, simplify the assembly process and optimize the cost.
Description
Technical field
What the present invention relates to is a kind of open type speaker unit, and this kind device belongs to the sound equipment field.
Background technology
In the prior art, loudspeaker enclosure mainly comprises loudspeaker box, and loudspeaker unit, loudspeaker unit must be installed on the casing, just sounding work normally.
One, loudspeaker box
Loudspeaker box of the prior art, the basic structure form of casing has: 1) panel around the loud speaker is bent into box-shaped, forms the cavity with volume.Like sketch map 8, Fig. 9, shown in Figure 10.Comprise the case shell that is equiped with semiclosed bending, as shown in Figure 8, be bent into the case shell of enclosed shape fully, as shown in Figure 9.2) finite plane baffle formula loudspeaker enclosure, promptly the panel size of loud speaker requires sufficiently large, shown in figure 10.
Two. loudspeaker unit
Loudspeaker unit of the prior art, its vibrating diaphragm cone surface seals, and does not allow the surface turnover of air via it; It is imporosity on the cone surface of vibrating diaphragm; Be that internal cavity provides the path of a sound leakage, is unfavorable for tonequality for after preventing the loud speaker vanning.
Like Figure 11, shown in Figure 12, loudspeaker unit of the prior art, all there is a little air chamber its vibrating diaphragm front, and this little air chamber is called the cup effect of loud speaker.At first, with regard to cone type loudspeaker, be that the vibrating diaphragm cone is recessed, form semi-enclosed little air chamber, when the loud speaker porpoise, because of the vibrating diaphragm surface seals, compression and the expansion that can't effectively remove indoor gas change.Once more, loud speaker is contained in the casing, and loud speaker front openings place also can add a stingy chamber t, is that the thickness of casing plank forms.As shown in Figure 8.
There is following defective in prior art: in 1, above-mentioned, loudspeaker box of the prior art is in order to isolate the interference of sound wave before and after the loud speaker, to avoid acoustic short circuit.Its shortcoming is that the box house sound wave repeatedly reflects, and sound dyes seriously, influences tonequality, again and casing must do greatlyyer, put restrictedly, it is complicated to make assembling procedure, cost is high, cost performance is not high in the multimedia speaker case system of miniaturization.
2, in above-mentioned, cone loudspeaker of the prior art unit all has the cup effect, and is contained on the casing more outstanding.Its shortcoming is because sound wave produces resonance in air chamber, makes in the sound field distribution very big disorder to have occurred, and phase place and frequency response curve characteristic degenerate.
3, in above-mentioned, its loudspeaker unit of loudspeaker enclosure of the prior art must be installed on loudspeaker box, just normal sounding.Its shortcoming is that loud speaker is subject to casing, and independently casing must be provided, to avoid because of acoustic short circuit sounding work normally; Moreover; Casing must be done greatlyyer, puts restrictedly, and sound dyes seriously; Assembling procedure complicacy and cost are high, and cost performance is not high in the multimedia speaker case system of miniaturization.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of open type speaker unit; This kind speaker unit need not to be installed on conventional tank, and just sounding work normally has high performance price ratio in the multimedia speaker case system of miniaturization; Simultaneously; Realize the improvement of tonequality, simplified assembling procedure, optimized cost.
The present invention can take following technical scheme:
A kind of open type speaker unit comprises that support, center have the locating branch slice of the vibrating diaphragm of endoporus, voice coil loudspeaker voice coil, the said voice coil loudspeaker voice coil of support, and magnetic circuit system; Its indent of said support becomes a cavity with volume; Its outer end of vibrating diaphragm is connected with its exterior portions of support, and its inner of vibrating diaphragm is connected with its coil holder of voice coil loudspeaker voice coil, and voice coil loudspeaker voice coil places in the magnetic circuit system; Locating branch slice is between vibrating diaphragm and support; It is characterized in that: said vibrating diaphragm through hole that be provided with at least more than one, that can effectively discharge stingy indoor air pressure of vibrating diaphragm when vibration, its wall of support has at least one opening, and its edge of said opening extends outward annular wall.
The present invention deals with problems and can also further take following corrective measure:
The quantity of said through hole is a plurality of, and each through hole evenly is located on the vibrating diaphragm.
Said vibrating diaphragm is made up of first and second portion, and first is the side of Rotary-table, and second portion is cylindric that more outside bore expands outwardly gradually, and its inner of its outer end of second portion and first is connected or is connected as a single entity.
Said through hole is located in its first of vibrating diaphragm.
Its wall of said support is provided with a plurality of openings.
Be placed with ventilative sponge, ventilative cloth, fibrous acoustical cotton or filter paper material in the said opening.
Said support is installed on the baffle.
Said vibrating diaphragm is being provided with the ring around the outer end near its outer end.
Also comprise foot rest, said foot rest is connected with support, or is connected with magnetic circuit system.
Its endoporus of said vibrating diaphragm is provided with dust cap and is covered with.
Technique scheme has such
Technique effect:
1, open type speaker unit of the present invention, speaker unit need not to be installed on conventional tank, just sounding work normally; In the multimedia speaker case system of miniaturization, has high performance price ratio; Simultaneously, realize the improvement of tonequality, simplified assembling procedure; Simple in structure, optimized cost.
2, open type speaker unit of the present invention, said support, indent becomes a cavity with volume, has an opening on its wall of support at least, and its edge of opening extends outward annular wall.Form the not closed cavity state that opens wide, have volume, play casing, the air-flow in the cavity can be through the opening turnover.As the casing of having simplified, do not have additional wooden case thickness formed cup effect with loudspeaker support, improved tonequality in the time of the product miniaturization, cost performance is high.As far as whole device, itself be exactly a loudspeaker unit after the improvement, simultaneously also be the loudspeaker enclosure of having simplified.
3, open type speaker unit of the present invention, support can be installed on the baffle, perhaps is designed to the foot rest that bends, is connected to desktop, can fixed placement during work in table top, assembling procedure is simple.
4, open type speaker unit of the present invention; Vibrating diaphragm through hole that be provided with at least more than one, that can effectively discharge stingy indoor air pressure of vibrating diaphragm when vibration; In the multimedia speaker case system of miniaturization, need not to isolate sound wave with traditional casing again, the sound of having removed casing dyes; Realize the improvement of tonequality, optimized cost simultaneously.
5, open type speaker unit of the present invention, its wall upper shed of support can let the sound wave air communication mistake of vibrating diaphragm radiation behind, are provided with ventilative sponge, ventilative cloth, fibrous acoustical cotton or filter paper material in the opening; These materials are to preventing dust; Sound insulation filtering avoids acoustic short circuit to play regulating action, and the length of its annular wall of opening reasonably is set; Size reaches the installation site with above-mentioned material, can effectively regulate acoustic short circuit.
6, open type speaker unit of the present invention; Centring disk is arranged in the back side of porous vibrating diaphragm and the space that rack bore is held; Can guarantee better that like this vibrating diaphragm has enough linear displacements, and weaken the vibrating diaphragm repeatedly reflection of sound wave behind, reduce to disturb before and after the sound wave.
Description of drawings
Fig. 1, Fig. 2 are the sketch mapes of open type speaker unit different visual angles of the present invention.
Fig. 3 is the structural representation of open type speaker unit of the present invention.
Fig. 4 is the sketch map of its vibrating diaphragm of open type speaker unit of the present invention.
Fig. 5, Fig. 6 are the sketch mapes of its support of open type speaker unit of the present invention.
Fig. 7 is the exploded view of open type speaker unit of the present invention.
Fig. 8, Fig. 9, Figure 10 are the structural representations of prior art loudspeaker box.
Figure 11, Figure 12 are the sketch mapes of its vibrating diaphragm different visual angles of prior art loud speaker.
Figure 13 is the frequency response curve figure of this enforcement based on the test of 2.0 audio amplifiers.
Figure 14 is the frequency response curve figure of this enforcement based on the test of 2.1 audio amplifiers.
Embodiment
Below in conjunction with specific embodiment the present invention is specifically described.
Embodiment: extremely shown in Figure 7 like Fig. 1; A kind of open type speaker unit comprises that support 1, center have the locating branch slice 4 of the vibrating diaphragm 2 of endoporus, voice coil loudspeaker voice coil 3, the said voice coil loudspeaker voice coil of support, and magnetic circuit system 5; Said support 1 its indent becomes a cavity with volume; Vibrating diaphragm 2 its outer ends are connected with support 1 its exterior portions, and vibrating diaphragm 2 its inners are connected with voice coil loudspeaker voice coil 3 its coil holders, and voice coil loudspeaker voice coil 3 places in the magnetic circuit system 5; Locating branch slice 4 is between vibrating diaphragm 2 and support 1; Said vibrating diaphragm 2 be provided with at least more than one, the through hole 6 of stingy indoor air pressure in the time of can effectively discharging vibrating diaphragm 2 vibration, support 1 its wall has at least one opening 7, its edge of said opening extends outward annular wall 16.
The shape of said through hole 6 can be circular, square, triangle; Tapers etc. also can be difform holes, the compound mode of through hole 6; The hole that can be shape of the same race is combined, the also not hole of shape of the same race combination, the combination in this programme circular hole.
The quantity of through hole 6 can design according to design demand, and in the present embodiment, the quantity of said through hole 6 is 20, and each through hole 6 evenly is located on the vibrating diaphragm 2.These through holes are the manhole of diameter 1.3mm.The size of through hole 6 designs with design demand.
Said vibrating diaphragm 2 is made up of with second portion 8 first 9, and first 9 is the side of Rotary-table, and second portion 8 is cylindric that more outside bore expands outwardly gradually, second portion 8 its outer ends and 9 its inner connections of first.
Said through hole 6 evenly is located in vibrating diaphragm 2 its firsts 9.
In this example, said support 1 its wall is provided with 4 rectangular openings 7.
Be provided with ventilative sponge, ventilative cloth, fibrous acoustical cotton or filter paper material in the said opening 7.In this example, be positioned over the inner space (in the space that annular wall surrounds) of support 1 opening 7 with ventilative sponge 10.These materials prevent dust, and sound insulation filtering avoids acoustic short circuit to play regulating action.The length of opening reasonably is set, and acoustic short circuit can effectively be regulated in size and installation site; In this example, the position of opening is in the middle part of cradle wall, protruding bracket Qi Bi plane; For being symmetrical set the rectangle opening mm of size 40 (length) * 15 (wide) * 15 (height).
The cross sectional shape of said opening 7 can be circular, square, triangle; Tapers etc. also can be difform openings, opening 7 compound modes; Can be combining of shape of the same race, the also not combination of shape of the same race, the combination of the preferred square aperture of this programme.
Said vibrating diaphragm 2 is at the ring 15 that is provided with near its outer end around the outer end.
Also comprise foot rest 11, said foot rest 11 is connected with magnetic circuit system 5.
Said vibrating diaphragm 2 its endoporus are provided with dust cap 12 and are covered with.
This vibrating diaphragm that is provided with through hole of the present invention has such effect:
1. air reasonably is provided with the quantity of through hole, size via its surface turnover; Position and compound mode can effectively discharge the air pressure of the little air chamber of the recessed formation of tapered vibrating diaphragm, eliminate sound wave and in air chamber, produce resonance; Solved the cup effect of loud speaker,, do not had airtight cavity because of this programme does not have vanning; There is not the sound leakage problem, improved tonequality.
When 2. vibrating diaphragm vibrated, the density variable condition appearred in the air before and after its, formed sound wave, was radiated the space; Vibrating membrane vibrates forward, the atmospheric density of its front big (close), and the atmospheric density of its back little (dredging), otherwise; The past after vibration of vibrating membrane, the atmospheric density of its front little (dredging), and the atmospheric density of its back big (close); The phase place that is the sound wave of vibrating membrane front and back radiation just in time is opposite, through the quantity of through hole, size reasonably are set; Position and compound mode on certain frequency, can be regulated the atmospheric density of vibrating diaphragm front and back; Reach the interference of regulating sound wave before and after the loud speaker, phase calibration alleviates and avoids the effect of acoustic short circuit.
Vented enclosure and device thereof adopt the porous vibrating diaphragm to do the sounding scheme, in the multimedia speaker case system of miniaturization, need not to isolate sound wave with traditional casing again, and the sound of having removed casing dyes, and has realized the improvement of tonequality, has optimized cost simultaneously.
Support of the present invention, indent become a cavity with volume, have an opening on the wall of support indent at least; Its edge of said opening extends outward annular wall; Form the not closed cavity state that opens wide, have cavity volume, play casing; When vibrating diaphragm vibrated, the sound wave air-flow of vibrating diaphragm radiation behind can be through the turnover of cavity inner opening.Because of opening has certain length, the sound wave of avoiding the opening part radiation is around to the loud speaker front, helped reducing the interference of sound waves before and after the loud speaker, effectively alleviates and avoided acoustic short circuit.
Said support, the outer that is connected to the porous vibrating diaphragm is peripheral, is connected to magnetic circuit system; Be connected to binding post, be connected to guard, the suspension voice coil loudspeaker voice coil; This also is that the parts of loud speaker assemble necessary framework, and the effect of support arrangement parts is as far as the entire bracket device; Itself being exactly a loudspeaker unit after the improvement, simultaneously also is the loudspeaker box of having simplified.
Support can be installed on the baffle, perhaps is designed to the foot rest that bends, is connected to desktop, can fixed placement during work in table top, assembling procedure is simple.
At this, holder device has dual effect, is the loudspeaker unit after the improvement; Simultaneously also be the loudspeaker box of having simplified, unite two into one vented enclosure promptly of the present invention and device thereof; In the multimedia speaker case system of miniaturization, loud speaker need not to put into another casing again, itself is exactly the loudspeaker enclosure of having simplified; Directly use normally sounding work.
Other structure is same or similar with conventional loudspeaker unit, as, said voice coil loudspeaker voice coil 3 comprises coil 3 and bobbin, coil is wrapped on the bobbin.
Said locating branch slice 4 is a kind of elasticity components and parts, is used to hang voice coil loudspeaker voice coil.
Comprise voice coil loudspeaker voice coil 3, centring disk 4 is arranged in the back side of porous vibrating diaphragm and the space that rack bore is held, can guarantee better that like this vibrating diaphragm has enough linear displacements, and weakens the vibrating diaphragm repeatedly reflection of sound wave behind, reduces to disturb before and after the sound wave.
Said binding post 13 is fixed on the support 1, is connected to the coil of voice coil loudspeaker voice coil 3.
Said guard 14 is fixed on support or the baffle, the protection diaphragm of loudspeaker, and can decorate loudspeaker enclosure.
Said dust cap 12 places voice coil loudspeaker voice coil coil holder top or places the central bore top of vibrating diaphragm, prevents dust and radiative acoustic wave.
The bobbin top of said voice coil loudspeaker voice coil is set in the centre bore of porous vibrating diaphragm, and the bobbin of voice coil loudspeaker voice coil is mutually bonding with vibrating diaphragm, and the bobbin at voice coil loudspeaker voice coil middle part is mutually bonding with the centring disk mesopore, and the coil of voice coil loudspeaker voice coil bottom is placed in the magnetic gap of magnetic circuit system.
Like this, voice coil loudspeaker voice coil 3 is by the porous vibrating diaphragm, and centring disk 4 suspensions are got up, and coil is placed in the magnetic gap of magnetic circuits, and when the signal of telecommunication that puts on voice coil loudspeaker voice coil, it is linear mobile that sound ring frame drives vibrating diaphragm, and vibrating diaphragm receives vibration sounding.
Adopt now the test that experimentizes of miniaturization multimedia speaker case system.
Miniaturization multimedia speaker case system, just common alleged active computer sound box, its miniaturized system, the small size casing, function is simple to operation, and cost performance requires high, can satisfy the multimedia application demand of ordinary consumer.
Miniaturization multimedia speaker case system generally is divided into small-sized bookshelf-type 2.0 audio amplifiers and two kinds of major structural types of 2.1 audio amplifiers with it.
2.1 its meaning is: 2 represent two secondary machine audio amplifiers, play the sound of medium-high frequency section.1 represents bass box, plays the sound of medium and low frequency section, and both combine, and can play the sound of full frequency band.
Figure 13 is the frequency response curve figure of this enforcement based on the test of 2.0 audio amplifiers.
From 200HZ, whole frequency response curve slowly rises, and does not have tangible peak valley, has good acoustic response.
Figure 14 is the frequency response curve figure of this enforcement based on the test of 2.1 audio amplifiers.
Increased a bass box main frame, the broadcast of bass frequency range from 50HZ has strengthened has been connected the response of secondary machine medium-high frequency section in 450HZ, and whole frequency response curve slowly rises, and does not have tangible peak valley, has good acoustic response.
Through subjective contrast audition, present embodiment has been eliminated conventional tank drone casing sound fully and has been dyed, and has reduced sound clarity, smooth nature, and sound field is broad, accurate positioning.
In addition, said support also is installed on the baffle, can use conventional connected mode.Said foot rest is connected with support, can adopt stick bonding.The shape of foot rest can design on demand.Certainly, the present invention also can be installed in the casing as conventional speaker unit.
Speaker unit involved in the present invention is because of its sounding that has no conventional tank and used the porous vibrating diaphragm, and simplified assembling procedure, thereby it is more extensive to make that the present invention is suitable for, and singly is not confined to multimedia sound equipment field.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an open type speaker unit comprises that support, center have the locating branch slice of the vibrating diaphragm of endoporus, voice coil loudspeaker voice coil, the said voice coil loudspeaker voice coil of support, and magnetic circuit system; Its indent of said support becomes a cavity with volume; Its outer end of vibrating diaphragm is connected with its exterior portions of support, and its inner of vibrating diaphragm is connected with its coil holder of voice coil loudspeaker voice coil, and voice coil loudspeaker voice coil places in the magnetic circuit system; Locating branch slice is between vibrating diaphragm and support; It is characterized in that: said vibrating diaphragm through hole that be provided with at least more than one, that can effectively discharge stingy indoor air pressure of vibrating diaphragm when vibration, its wall of support has at least one opening, and its edge of said opening extends outward annular wall.
2. open type speaker unit according to claim 1 is characterized in that: the quantity of said through hole is a plurality of, and each through hole evenly is located on the vibrating diaphragm.
3. open type speaker unit according to claim 1; It is characterized in that: said vibrating diaphragm is made up of first and second portion; First is the side of Rotary-table; Second portion is cylindric that more outside bore expands outwardly gradually, and its inner of its outer end of second portion and first is connected or is connected as a single entity.
4. open type speaker unit according to claim 3 is characterized in that: said through hole is located in its first of vibrating diaphragm.
5. open type speaker unit according to claim 1 is characterized in that: its wall of said support is provided with a plurality of openings.
6. open type speaker unit according to claim 1 is characterized in that: be provided with ventilative sponge, ventilative cloth, fibrous acoustical cotton or filter paper material in the said opening.
7. open type speaker unit according to claim 1 is characterized in that: said support is installed on the baffle.
8. open type speaker unit according to claim 1 is characterized in that: said vibrating diaphragm is being provided with the ring around the outer end near its outer end.
9. open type speaker unit according to claim 1 is characterized in that: also comprise foot rest, said foot rest is connected with support, or is connected with magnetic circuit system.
10. open type speaker unit according to claim 1 is characterized in that: its endoporus of said vibrating diaphragm is provided with dust cap and is covered with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210148975XA CN102655621A (en) | 2012-05-14 | 2012-05-14 | Opened type loudspeaker device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210148975XA CN102655621A (en) | 2012-05-14 | 2012-05-14 | Opened type loudspeaker device |
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| CN102655621A true CN102655621A (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210148975XA Pending CN102655621A (en) | 2012-05-14 | 2012-05-14 | Opened type loudspeaker device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281655A (en) * | 2013-04-16 | 2013-09-04 | 沙文金 | Double-voice coil moving-coil loudspeaker |
| CN105357614A (en) * | 2014-08-19 | 2016-02-24 | 听得乐股份有限公司 | Loudspeaker unit structure improvement |
| CN105491488A (en) * | 2015-12-18 | 2016-04-13 | 山东亿诺赛欧电子科技有限公司 | Loudspeaker unit |
| US9363587B2 (en) | 2013-12-05 | 2016-06-07 | Apple Inc. | Pressure vent for speaker or microphone modules |
| CN108449693A (en) * | 2018-03-20 | 2018-08-24 | 赵冬冬 | Improve the method for artistry loud speaker and loud speaker with artistry of bass sound quality |
| CN109040878A (en) * | 2018-10-08 | 2018-12-18 | 深圳市烽火宏声科技有限公司 | High-intensitive loudspeaker support and loudspeaker |
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| CN201491262U (en) * | 2009-06-05 | 2010-05-26 | 瑞声声学科技(常州)有限公司 | Microphone |
| CN201878320U (en) * | 2010-11-18 | 2011-06-22 | 新昌有限公司 | Improved loudspeaker structure |
| CN202634689U (en) * | 2012-05-14 | 2012-12-26 | 陆少锋 | Open type loudspeaker device |
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| DE202006008315U1 (en) * | 2006-05-26 | 2006-10-19 | Wunderlich, Gerhard | Loudspeaker chassis diaphragm for all kinds of loudspeakers has through holes, which are formed oblong, oval or hole-type whereby diameters and quantity of through holes do not impair rigid structure of diaphragm |
| CN201491262U (en) * | 2009-06-05 | 2010-05-26 | 瑞声声学科技(常州)有限公司 | Microphone |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281655A (en) * | 2013-04-16 | 2013-09-04 | 沙文金 | Double-voice coil moving-coil loudspeaker |
| WO2014169793A1 (en) * | 2013-04-16 | 2014-10-23 | Sha Wenjin | Double-voice coil moving-coil loudspeaker |
| US9363587B2 (en) | 2013-12-05 | 2016-06-07 | Apple Inc. | Pressure vent for speaker or microphone modules |
| CN105357614A (en) * | 2014-08-19 | 2016-02-24 | 听得乐股份有限公司 | Loudspeaker unit structure improvement |
| CN105491488A (en) * | 2015-12-18 | 2016-04-13 | 山东亿诺赛欧电子科技有限公司 | Loudspeaker unit |
| CN105491488B (en) * | 2015-12-18 | 2018-07-13 | 山东亿诺赛欧电子科技有限公司 | A kind of loudspeaker unit |
| CN108449693A (en) * | 2018-03-20 | 2018-08-24 | 赵冬冬 | Improve the method for artistry loud speaker and loud speaker with artistry of bass sound quality |
| CN109040878A (en) * | 2018-10-08 | 2018-12-18 | 深圳市烽火宏声科技有限公司 | High-intensitive loudspeaker support and loudspeaker |
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Application publication date: 20120905 |