CN206640788U - One kind does not break balance vibration loudspeaker - Google Patents
One kind does not break balance vibration loudspeaker Download PDFInfo
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- CN206640788U CN206640788U CN201720334965.3U CN201720334965U CN206640788U CN 206640788 U CN206640788 U CN 206640788U CN 201720334965 U CN201720334965 U CN 201720334965U CN 206640788 U CN206640788 U CN 206640788U
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Abstract
Do not broken balance vibration loudspeaker the utility model discloses one kind, including vibrational system, the vibrational system includes compliant conductive structure and voice coil loudspeaker voice coil with flexible elastic force ring arc, and two lead terminals of voice coil loudspeaker voice coil are welded on two pad terminals of the compliant conductive structure with flexible elastic force ring arc；Compliant conductive structure with flexible elastic force ring arc has ring arc, and the ring arc both ends stress is more than interlude, and the both ends width of ring arc is big, and interlude width is small.
Description
Technical field
The invention belongs to loudspeaker field, and in particular to one kind does not break balance vibration loudspeaker.
Background technology
With the fast development of the electronics industry such as wireless hand communication, as the primary terminal of wireless telecommunications, smart mobile phone exists
Function, outward appearance, reliability etc. are progressive obvious.The fast development of smart mobile phone has also driven mobile phone electroacoustic industry not simultaneously
Disconnected renewal progress, the electro-acoustic element that people are correspondingly used in mobile phone propose new requirement：Small size, high-power, high loudness, shake greatly
Width, low distortion.The voice coil leads terminal of current most of mobile phone speaker needs to be fixed at frame pad, mobile phone speaker work
Make voice coil loudspeaker voice coil to move in magnetic circuit system, while voice coil leads terminal is fixed, working long hours easily causes voice coil line tired
Broken string, loudspeaker is caused various failure modes occur, the main failure mode of loudspeaker is noiseless after long-term work, as above
New challenge will be proposed to the reliability of loudspeaker by asking.
Usual SPK is square, and the discrepancy line distribution of voice coil loudspeaker voice coil is asymmetric, and unbalance vibration and broken string are caused in large amplitude.
The conducting of conventional loudspeakers voice coil loudspeaker voice coil relies on two wires drawn from voice coil loudspeaker voice coil body.In the design of conventional speakers
In, this two wire middle parts are vacantly fixed on diaphragm surface in loudspeaker, or by flexible glue, and lead end points needs and basin
Pad in frame is fixedly connected, therefore lead centre position can produce Relative Vibration with vibrational system during speaker operation, for a long time
Broken string easily is produced because of the fatigue resistance of voice coil line deficiency after work, causes speaker fail.
The other extraction shape of lead and the glue of anchor leg can have an impact to the stress balance of vibrational system, easily
Cause the diverse location discontinuity of product vibrational system and produce rocking vibration.
Patent No. 201510204166.X proposes one kind using laser etching technology corrosion membrane surface and deposits conductive layer
To replace the scheme of hanging voice coil line, by laser etching techniques in two symmetrical wire casings of surface etch of silica gel vibrating diaphragm, gold
Category deposition technique deposits a conductive metal layer in every wire casing, the both ends weld part of every conductive metal layer is distinguished
With voice coil loudspeaker voice coil and pad solder, so as to realize the connection of voice coil loudspeaker voice coil and pad.But the conductive layer area that the program is deposited is limited, and
Because diaphragm thickness limits, conductive deposits layer intensity is insufficient, can not prevent the fatigue cracking of sedimentary.The other program can only answer
It is smaller to corrodible diaphragm material, use range.
Patent No. 201320868264.X replaces the scheme of voice coil line using flexible FPC, and it by weld tabs by being arranged at FPC
On diving board, realize that voice coil loudspeaker voice coil and the telecommunications in the external world turn on using the elasticity arm of FPC diving boards, and weld tabs synchronously shakes with voice coil leads
It is dynamic, greatly reduce voice coil leads fracture or the risk to be come off from weld tabs.But current programme not by FPC bending realize compared with
The big range of linearity, work long hours and be also easy to produce FPC permanent deformations；And by structure limits each position of unrealized vibrational system
Uniform force, can not solve the problems, such as rocking vibration.
The content of the invention
Technical problem to be solved in the utility model is the deficiency for above-mentioned technical proposal, there is provided one kind does not break flat
The design of weighing apparatus vibrating speaker, the balance vibration loudspeaker that do not break can prevent that fatigue, which occurs, during loudspeaker long-term work breaks
Line, and mitigate rocking vibration problem.
In order to solve the above technical problems, the technical scheme is that：
One kind does not break balance vibration loudspeaker, including vibrational system, and the vibrational system includes rolling over flexible elastic force
The compliant conductive structure and voice coil loudspeaker voice coil of ring arc, two lead terminals of voice coil loudspeaker voice coil are welded on the compliant conductive with flexible elastic force ring arc
Two pad terminals of structure.
Compliant conductive structure with flexible elastic force ring arc has ring arc, and the ring arc both ends stress is more than centre
Section, the both ends width of ring arc is big, and interlude width is small.
Ring arc is that some sections of arcs form, including at least one section.
Conductive strips have been buried in ring arc.
Ring arc enhances the toughness of vibrational system, prevents rupture failure caused by working long hours；Bury inside FPC
Conductive strips realize the connection of frame pad and voice coil loudspeaker voice coil current signal.
Also include speaker frame, axially symmetric ring-shaped pole pieces, center pole piece, magnet steel and magnetic cover, voice coil loudspeaker voice coil, with soft
The compliant conductive structure of property elastic force ring arc, PFC bodies and two pad terminals are be bonded by glue with top dome, flexible sheet
Vibrational system is formed together.
Vibrational system is fixed in the frame of loudspeaker, simultaneous with the four of the compliant conductive structure of flexible elastic force ring arc
Individual ring arc terminal is respectively welded in four pad ends of frame, wherein only right side pad end and left side pad end are believed with outside
Number connection.
The vibrational system avoids the relative motion between voice coil loudspeaker voice coil terminal and vibrational system in motion process, when preventing long
Between motion caused by fatigue damage.
Also include magnetic circuit system, the magnetic circuit system includes axially symmetric ring-shaped pole pieces, center pole piece, magnetic circuit and magnetic
Cover.
Axially symmetric ring-shaped pole pieces is molded on frame.
Magnetic circuit system includes：Axially symmetric ring-shaped pole pieces, center pole piece, magnetic circuit and magnetic cover, wherein magnetic circuit system bag
Center magnet steel, short axle magnet steel, major axis magnet steel are included, wherein axially symmetric ring-shaped pole pieces is molded on frame；Axial symmetry magnetic circuit
System is beneficial to speaker performance.
Because voice coil leads are synchronized with the movement by the compliant conductive structure of flexible elastic force ring arc with vibrational system, that is, carry
The ring arc of the compliant conductive structure of flexible elastic force ring arc substitutes hanging voice coil line, avoids the production of voice coil line overhanging portion
It is raw, fundamentally solve tired disconnection problem.
Voice coil line is realized with being turned on outer signals using the compliant conductive structure with flexible elastic force ring arc, it is flexible
Conductive structure center section is fixed on speaker diaphragm so that voice coil line and lead are fixed as one with diaphragm completely, prevent
There is relative motion with lead end in voice coil loudspeaker voice coil.
Main advantage is that the compliant conductive structure replaces the hanging lead of current voice coil line, avoids after working long hours easily
Broken string is produced because of the fatigue resistance of voice coil line deficiency, causes speaker fail.
The structural symmetry of the compliant conductive structure, which designs, simultaneously realizes each position uniform force of vibrational system, and magnetic circuit is symmetrical
Property design realize voice coil loudspeaker voice coil uniform force, avoid rocking vibration problem.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is vibrational system schematic diagram；
Fig. 3 is the compliant conductive structural representation with flexible elastic force ring arc；
Fig. 4 is the compliant conductive structure A-A sectional views with flexible elastic force ring arc；
Fig. 5 is B close-up schematic views；
Fig. 6 is loudspeaker schematic diagram；
Fig. 7 is Fig. 6 sectional view.
In figure：
1 protecgulum elasticity；2nd, diaphragm；3rd, top dome；4th, the FPC with flexible elastic force ring arc；41st, pad terminal；42、
FPC bodies；43rd, FPC rings arc；44th, ring arc terminal；45th, conductive strips；5th, voice coil loudspeaker voice coil；51st, 52 voice coil leads terminal；6th, raise one's voice
Device frame；61：Frame pad；7th, axially symmetric ring-shaped pole pieces；8th, center pole piece；9th, magnetic circuit；91st, center magnet steel；91st, it is short
Axle magnet steel；93rd, major axis magnet steel；10th, magnetic cover.
The present invention will be further described in conjunction with the accompanying drawings and embodiments.
Embodiment
Embodiment, as shown in accompanying drawing 1-5, one kind does not break balance vibration loudspeaker, includes protecgulum 1, the bullet of receiving space
It is property diaphragm 2, top dome 3, the compliant conductive structure 4 with flexible elastic force ring arc, voice coil loudspeaker voice coil 5, speaker frame 6, axially symmetric
Ring-shaped pole pieces 7, center pole piece 8, magnet steel 9 and magnetic cover 10.
Two lead terminals 51 of voice coil loudspeaker voice coil 5 are welded on two welderings of the compliant conductive structure 4 with flexible elastic force ring arc
Disk terminal 41, while voice coil loudspeaker voice coil 5, the body 42 of compliant conductive structure 4 with flexible elastic force ring arc and two pad terminals 41
Avoided with top dome 3, flexible sheet 2 by the gluing composition vibrational systems that are connected together of UV, the vibrational system in motion process
Relative motion between voice coil loudspeaker voice coil terminal 51, voice coil loudspeaker voice coil terminal 52 and vibrational system, prevents fatigue damage caused by prolonged exercise.Shake
Dynamic system is fixed in the frame 6 of loudspeaker, while four rings of compliant conductive structure 4 of the band with flexible elastic force ring arc
Arc terminal 44 is respectively welded in four pad ends 61 of frame 6, wherein the only right side（It is left）The pad end of side two connects with external signal
Connect.
The FPC4 of flexible elastic force ring arc as shown in Figure 2 ring arc 44, wherein in order to keep the stability of system, design
Four symmetrical ring arcs, symmetrical any two pad end is as external signal input terminals.
Compliant conductive structure 4 with flexible elastic force ring arc has a ring arc 43, and the both ends stress of ring arc 43 is big
In interlude, the both ends width of ring arc is big, and interlude width is small；Ring arc 43 is that some sections of arcs form, including at least one section；
Conductive strips 45 have been buried in ring arc 43.
Ring arc enhances the toughness of vibrational system, prevents rupture failure caused by working long hours；Bury inside FPC
Conductive strips 45 realize the connection of frame pad and voice coil loudspeaker voice coil current signal.
Magnetic circuit system includes：Axially symmetric ring-shaped pole pieces 7, center pole piece 8, magnetic circuit 9 and magnetic cover 10.It is wherein axially right
The ring-shaped pole pieces 7 of title is molded on frame 6.Axial symmetry magnetic circuit system is beneficial to speaker performance.
At work, external signal is connected to the right side of frame 6 to the loudspeaker（It is left）The pad end 61 of side two, voice coil loudspeaker voice coil be powered after
The function that vibrational system is vibrated and promotes air to realize loudspeaker in the presence of magnetic field force.Because voice coil leads pass through with flexible
The compliant conductive structure 4 of elastic force ring arc is synchronized with the movement with vibrational system, i.e. the compliant conductive knot with flexible elastic force ring arc
The ring arc 43 of structure 4 substitutes hanging voice coil line, avoids the generation of voice coil line overhanging portion, fundamentally solves tired broken string
Problem.
As shown in accompanying drawing 6 and accompanying drawing 7, magnetic circuit system includes：Axially symmetric ring-shaped pole pieces 7, center pole piece 8, magnetic circuit 9 with
And magnetic cover 10, wherein magnetic circuit system includes center magnet steel 91, short axle magnet steel 92, major axis magnet steel 93, wherein axially symmetric annular
Pole piece 7 is molded on frame 6；Axial symmetry magnetic circuit system is beneficial to speaker performance.
The key of the present invention is to substitute current voice coil leads by the flexible FPC conductive materials with ring arc.
The ring arc of flexible conducting material is symmetrical relative to loudspeaker geometric center, diaphragm ring radian can upward or
Down, the ring arc of flexible conducting material can be multiple shapes, such as one or several radians.
Flexible conducting material, including but not limited to FPC etc., the voice coil line directly led out is substituted, stress can be avoided uneven
Rocking vibration caused by weighing apparatus, while solve voice coil line fatigue disconnection problem.
The present invention be intended to protect be a little compliant conductive FPC ring arc, compliant conductive FPC symmetry arrangement, and have
The flexible conducting material of features described above substitutes the loudspeaker design of voice coil line.
Because the lead of bending is not passed in and out（Lead is too thin）, substitute with the more preferable conductive material of pliability, such as FPC, can
The loudspeaker design that realization does not break, major design point are as follows：
1. the bending process of pair flexible conducting material can increase its range of linearity, and have higher structural strength, avoid
Flexible conducting material deforms after working long hours, and the range of linearity increased is advantageous to the low distortion design of product.
Shaken 2. the symmetry arrangement of flexible conducting material can solve to wave as caused by speaker vibration system discontinuity
It is dynamic, be advantageous to the high-power performance of loudspeaker.
3. the compliant conductive FPC substitution leads with ring arc, the fatigue broken string that can fundamentally solve voice coil line are asked
Topic.
Above-described is only the embodiment in this patent, it should be noted here that for design symmetry, including voice coil loudspeaker voice coil
The outlet of major axis short axle designs, and the flexible FPC design symmetries with ring arc belong to the scope of protection of the utility model.
Lead includes but is not limited to spot welding distribution shown in figure and position.It can also be symmetrically distributed in centre
Its position.
Advantage of the utility model in terms of stress symmetry is described as follows：At present the vibrational system of general scheme it is pliable by
The reaction force of voice coil line influences, and causes the pliable asymmetry of vibrational system, patent No. 201320868264.X uses flexible FPC generations
For the scheme of voice coil line, because FPC arm of forces design shortcoming causes vibrational system discontinuity, this patent uses the flexibility of new construction
Conductive material, make vibrational system stress full symmetric, by experiment and stress simulation, the utility model is on two weeks axial directions
Stress is full symmetric.
Claims (8)
- The balance vibration loudspeaker 1. one kind does not break, it is characterised in that：Including vibrational system, the vibrational system is included with soft The compliant conductive structure of property elastic force ring arc（4）And voice coil loudspeaker voice coil（5）, voice coil loudspeaker voice coil（5）Two lead terminals（51）It is welded on soft The compliant conductive structure of property elastic force ring arc（4）Two pad terminals（41）On.
- The balance vibration loudspeaker 2. one kind as claimed in claim 1 does not break, it is characterised in that：With flexible elastic force ring arc Compliant conductive structure（4）With ring arc（43）, the ring arc（43）Both ends stress is more than interlude, the both ends of ring arc Width is big, and interlude width is small.
- The balance vibration loudspeaker 3. one kind as claimed in claim 2 does not break, it is characterised in that：Ring arc（43）For some sections Arc forms, including at least one section.
- The balance vibration loudspeaker 4. one kind as claimed in claim 2 does not break, it is characterised in that：Ring arc（43）Inside bury Conductive strips（45）.
- The balance vibration loudspeaker 5. one kind as claimed in claim 1 does not break, it is characterised in that：Also include speaker frame （6）, axially symmetric ring-shaped pole pieces（7）, center pole piece（8）, magnetic circuit（9）And magnetic cover（10）, voice coil loudspeaker voice coil（5）, with flexible pellet The compliant conductive structure of power ring arc（4）, PFC bodies（42）And two pad terminals（41）With top dome（3）, flexible sheet （2）Bonded together by glue and form vibrational system.
- The balance vibration loudspeaker 6. one kind as claimed in claim 5 does not break, it is characterised in that：Vibrational system, which is fixed on, raises one's voice The frame of device（6）In, simultaneous with the compliant conductive structure of flexible elastic force ring arc（4）Four ring arc terminals（44）Respectively It is welded in frame（6）Four pad ends（61）, only two of which pad end is connected with external signal.
- The balance vibration loudspeaker 7. one kind as claimed in claim 1 does not break, it is characterised in that：Also include magnetic circuit system, institute Stating magnetic circuit system includes axially symmetric ring-shaped pole pieces（7）, center pole piece（8）, magnetic circuit（9）And magnetic cover（10）.
- The balance vibration loudspeaker 8. one kind as claimed in claim 7 does not break, it is characterised in that：Axially symmetric ring-shaped pole pieces （7）It is molded in frame（6）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334965.3U CN206640788U (en) | 2017-03-31 | 2017-03-31 | One kind does not break balance vibration loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334965.3U CN206640788U (en) | 2017-03-31 | 2017-03-31 | One kind does not break balance vibration loudspeaker |
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| Publication Number | Publication Date |
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| CN206640788U true CN206640788U (en) | 2017-11-14 |
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| CN201720334965.3U Active CN206640788U (en) | 2017-03-31 | 2017-03-31 | One kind does not break balance vibration loudspeaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018177035A1 (en) * | 2017-03-31 | 2018-10-04 | 山东共达电声股份有限公司 | Loudspeaker |
| WO2020034706A1 (en) * | 2018-08-13 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Speaker |
-
2017
- 2017-03-31 CN CN201720334965.3U patent/CN206640788U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018177035A1 (en) * | 2017-03-31 | 2018-10-04 | 山东共达电声股份有限公司 | Loudspeaker |
| WO2020034706A1 (en) * | 2018-08-13 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Speaker |
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