CN104837097B - A kind of speaker unit - Google Patents
A kind of speaker unit Download PDFInfo
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- CN104837097B CN104837097B CN201510233032.0A CN201510233032A CN104837097B CN 104837097 B CN104837097 B CN 104837097B CN 201510233032 A CN201510233032 A CN 201510233032A CN 104837097 B CN104837097 B CN 104837097B
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- vibrating diaphragm
- speaker unit
- joint close
- coil framework
- speech coil
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Abstract
The present invention relates to a kind of speaker units, including shell, magnetic circuit system, vibrating diaphragm, speech coil framework and dust cap.The magnetic circuit system is installed on the housing, the magnetic circuit system for generating magnetic field.The vibrating diaphragm installation on the housing, has opening among vibrating diaphragm.The speech coil framework is fixedly mounted on the opening of the vibrating diaphragm, and suspension in the housing, has the first joint close between the speech coil framework and the vibrating diaphragm.The dust cap is fixedly mounted on the vibrating diaphragm, covers the opening of the vibrating diaphragm, has the second joint close between the dust cap and the vibrating diaphragm.First joint close and/or second joint close are engaged in the form of intermittent weld, and bonding agent is coated on the first joint close and/or the second joint close engaged in the form of intermittent weld, and the upper side and lower side of the vibrating diaphragm is isolated the dust cap.Speaker unit provided by the invention can improve the sound quality of loud speaker, enhance heat dissipation performance.
Description
Technical field
The invention belongs to acoustic-electric energy-conversion technique fields, and in particular to a kind of structure design improvement of speaker unit.
Background technology
Speaker unit is equipment important in acoustic-electric energy-conversion technique field, from high-pitched speaker to Microspeaker, ability
Field technique personnel would generally use coil-moving speaker device as sounding component.In existing coil-moving speaker, especially
It is that sounding vibrating diaphragm is usually formed with the ring and cone basin of paper wood or Fiber Materials in loudspeaker.Trumpet has to be connected with cone basin
The speech coil framework for connecing, being suspended in magnetic field, the speech coil framework generates vibration by electromagnetic induction effect, to drive vibrating diaphragm to shake
Dynamic, manufacture sound.Normal conditions, those skilled in the art uniformly coat bonding agent in the junction of cone basin and speech coil framework, will
The two is fixedly connected, and makes cone basin that speech coil framework is suspended on inside loudspeakers, and speech coil framework vibration can drive cone basin to vibrate.Separately
Outside, in the centre of vibrating diaphragm, the position of corresponding speech coil framework is often also equipped with dust cap, for preventing dust from falling into loudspeaker,
It connects and undertakes part vocal function.The material of dust cap is usually identical as vibrating diaphragm, is installed also by bonding way.
But with the development of loudspeaker techniques, people propose higher to performances such as power, the sound qualities of loud speaker
Requirement, by bonding agent connect cone basin and speech coil framework existing defects, influence the promotion of speaker performance.On the one hand, greatly
The loud speaker of power will produce amount of heat at work, and the heat production of wherein speech coil framework and magnetic circuit system is particularly evident.But
The thermal coefficient of bonding agent is relatively low, and the heat generated in speech coil framework smoothly can not pass to cone basin and dust cap from abutting edge,
And then heat can not be spread out of above loud speaker.Inside loudspeakers overheat can cause the problems such as magnetic circuit demagnetization, malformation, sternly
Ghost image rings the sound quality of loud speaker.On the other hand, bonding agent is different from the material of vibrating diaphragm, speech coil framework, dust cap, sticky bit
The intensity set is also different, this species diversity can cause the sound quality of loud speaker to generate flaw.Such issues that cannot be satisfied to raising one's voice
The high tone quality requirement of device.
In conclusion it is necessary to provide the connection types of a kind of new vibrating diaphragm, dust cap and speech coil framework.New connection side
Formula should provide good heat conductivility under the premise of satisfaction is stably connected with, can be smoothly by speech coil framework and magnetic circuit system
Front export of the heat of generation from loud speaker.On the other hand, new connection type should make junction and vibrating diaphragm, speech coil framework most
Possible intensity having the same, enhances the smooth degree in sound transmission path, improves sound quality.
Invention content
It is an object of the present invention to provide a kind of better speaker unit of sound quality, another target of the invention
It is to provide a kind of better speaker unit of heat dissipation effect.
According to an aspect of the present invention, a kind of speaker unit is provided, including：
Shell；
Magnetic circuit system for generating magnetic field, the magnetic circuit system installation is on the housing；
The vibrating diaphragm of installation on the housing, the vibrating diaphragm centre have opening；
Speech coil framework, the speech coil framework are fixedly mounted on the opening of the vibrating diaphragm, and suspension is in the housing, described
There is the first joint close between speech coil framework and the vibrating diaphragm；
Dust cap, the dust cap are fixedly mounted on the vibrating diaphragm, cover the opening of the vibrating diaphragm, the dust cap with
There is the second joint close between the vibrating diaphragm；
First joint close and/or second joint close are engaged in the form of intermittent weld, are engaged in the form of intermittent weld
The first joint close and/or the second joint close on be coated with bonding agent, the dust cap by the upper side and lower side of the vibrating diaphragm every
From.
Preferably, have at least three on first joint close and/or the second joint close engaged in the form of intermittent weld
Equally distributed solder joint.
The vibrating diaphragm may include the ring and cone basin of annular, and the outer edge of the ring and the cage connection are described
The inward flange of ring is connect with cone basin top edge, and the lower edge of the cone basin is fixedly connected with the speech coil framework.
The speaker unit can also include be mounted on the shell in centring disk, the centring disk with it is described
Speech coil framework connects.
The speech coil framework may include support frame and voice coil portion, and the support frame is welded with the vibrating diaphragm, described
Voice coil portion stretches into the magnetic field.The support frame can have at least one heat emission hole.
The magnetic circuit system may include frame and the upper magnet being successively set in the frame, upper washer, lower magnetic
Iron and lower washer have magnetic field between the upper magnet, upper washer, lower magnet and lower washer and the side wall of the frame.
The material of the dust cap, cone basin and the support frame is preferably aluminium.
The voice coil portion can be wrapped on the support frame, and the speech coil framework can also include for receiving sound
The voice coil leads of signal, the speaker unit include the lead socket for fixing the voice coil leads, the lead socket
Installation is on the housing.
One of the present invention has technical effect that first joint close and the second joint close are engaged by welding manner,
Strength difference very little between its component being connect with itself both sides, sound and vibration can smoothly be transmitted to from speech coil framework and shake
Film and dust cap, the sound quality higher of this speaker unit.When another technique effect of the present invention, due to the cone
Basin, dust cap material use the material that can be welded, usually metal material, so the heat dissipation effect of this speaker unit
Fruit can substantially enhance, and the heat of magnetic circuit system and speech coil framework work generation can be quickly transmitted to outside device.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
The attached drawing of a part for constitution instruction describes the embodiment of the present invention, and is used to solve together with the description
Release the principle of the present invention.
Fig. 1 is the part explosive view of speaker unit described in the specific embodiment of the invention；
Fig. 2 is the side sectional view of speaker unit described in the specific embodiment of the invention；
Fig. 3 is the stereogram of speaker unit described in the specific embodiment of the invention.
Specific implementation mode
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body illustrates that the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
The present invention provides a kind of speaker unit, including：Shell, magnetic circuit system, vibrating diaphragm, speech coil framework and anti-
Dirt cap.The magnetic circuit system is for generating magnetic field, and installation is on the housing.The vibrating diaphragm is generally circular taper knot
Structure, centre have opening, and on the housing, inward flange reaches in the shell for the outer edge installation of vibrating diaphragm.The voice coil bone
Frame welding is mounted on the opening among the vibrating diaphragm, and the vibrating diaphragm hangs the speech coil framework in the housing, described
The lower part of speech coil framework is stretched into the magnetic field that the magnetic circuit system generates.Have first between the speech coil framework and the vibrating diaphragm
Joint close.Generally in circular arc planar, welding is mounted on the vibrating diaphragm, the opening of the vibrating diaphragm is covered the dust cap, prevents
Only dust is fallen in the speech coil framework and shell.There is the second joint close between the dust cap and the vibrating diaphragm.Particularly,
The speech coil framework, dust cap and vibrating diaphragm are all made of the material that can be welded and are made, such as metal.First joint close
And/or second joint close is engaged in the form of intermittent weld, the first joint close and/or second engaged in the form of intermittent weld connects
Be coated with bonding agent on joint close, the first joint close and the second joint close being welded to connect can reduce junction and both sides component it
Between strength difference, sound and vibration can smoothly pass to vibrating diaphragm and dust cap from speech coil framework, and spread out of outward.Due to
Speech coil framework, dust cap and vibrating diaphragm consist of metal, so heat can also be spread out of rapidly, prevent superheating phenomenon.Separately
Outside, in the joint close using intermittent weld connection, it is coated with bonding agent, for joint close to be fully sealed.It is completely close with vibrating diaphragm
The dust cap of envelope is completely isolated by the upper side and lower side of the vibrating diaphragm, can prevent acoustic short circuit phenomenon.Dust cap also have prevent
Foreign matter, dust fall into the effect inside speaker unit.
Particularly, in the present invention, it among first joint close and the second joint close, can be used with only one of which
The form of intermittent weld engages, and can also both be engaged in the form of intermittent weld.It is optional if do not used intermittent weld form to engage
It selects, the mode that welding is fully sealed can be used to connect.It is fully sealed between the joint close of welding and the component of both sides and does not deposit
In strength difference, sound and vibration can be propagated more smoothly.But complete all-welded processing technology is relative complex, needs to weld
Length it is longer, and completely welding back part be vulnerable to the influence of welding stress and deform, influence assembly and the work of device
Make quality.The joint close connected in the form of intermittent weld also can effectively reduce the intensity difference between joint close and both sides component
Different, processing technology is also relatively easy, and component will not be made to generate apparent deformation.But intermittent weld connection cannot be close by joint close
Envelope, so, coating bonding agent is needed on the joint close of intermittent weld connection, and unwelded part is fully sealed.Preferably, with interruption
Should have at least two solder joints or weld seam on first joint close and/or the second joint close of the engagement of weldering form.The solder joint
Or weld seam is uniformly distributed along the direction that joint close extends.For example, joint close can be circle, then two solder joints can be in circular arc
The upper position for being located at mutually difference 180 degree, if using weld seam, two fusion lengths can also be equal.Intermittent weld form knot
Can also have greater number of solder joint or weld seam, such as 3,4,6 etc. on the joint close of conjunction, those skilled in the art can
To be adjusted according to the quantity of actual conditions butt welding point, weld seam, the present invention is not limited.
In the particular embodiment, as shown in Figure 1, 2, the shell 1 is bowl-type structure, and the magnetic circuit system is mounted on institute
State the bottom of shell.The vibrating diaphragm includes the ring 21 and cone basin 22 of annular, the inward flange of the ring 21 and the cone basin 22
Top edge connection, the ring 21 and cone basin 22 form the vibrating diaphragm on conical banda edge, the outer edge of the ring 21 with it is described outer
The upper edge of shell connects, and the lower edge of the cone basin 22 surrounds opening, stretches into the shell.In general, the ring 21 and shell
Bonding connection, the ring 21 is with cone basin 22 also by bonding connection.The cone basin 22 is used as main sound-producing device, in this reality
It applies in example and is made of metal material, the ring 21 should have enough intensity and toughness as suspention connector, and be cone
Basin 22 and speech coil framework 3 provide enough Oscillation Amplitudes.Rubber, macromolecule polymer material may be used in the ring 21, or
For person in order to further increase heat dissipation effect and sound quality, the ring 21 can also use metal material.Ring 21 and cone basin
It needs closely to be fixedly connected between 22, those skilled in the art can select described in different material making according to actual needs
Ring 21.The welding of the dust cap 6 is mounted on the upper surface of described cone basin 22, and the opening of the cone basin 22 is covered, described dust-proof
The welds joint of cap 6 and the cone basin 22 is the second joint close 062.The dust cap 6 is used to prevent dust, foreign matter from falling into,
Dust cap 6 also takes on part vocal function.The dust cap 6 is made of material identical with cone basin 22 in the present invention, with
Reach better sound effect.The speech coil framework is mounted on the opening of the cone basin 22, i.e., at the lower edge of cone basin 22.Institute
It states speech coil framework and the joint of the cone basin 22 forms circular first joint close 032.Due to speech coil framework and metal knot
Structure, so, the first joint close 032 can be by being welded together so that sound and vibration can be suitable from speech coil framework
Smooth is transmitted to cone basin 22.The vibrating diaphragm hangs the speech coil framework in the shell, and the lower part of speech coil framework extend into described
In magnetic circuit system, it is located in the magnetic field of its generation.
In a particular embodiment, the speaker unit can also include centring disk 4.As shown in Figure 1, the centering branch
Piece 4 is circular ring shape, the flaky texture with bending fluctuating.The centring disk 4 is mounted on the enclosure, centring disk
4 outer edge is fixedly connected with the shell, and inner edges are connected with the side wall of the speech coil framework.Centring disk 4 is for steady
The vibrational state of accordatura ring framework makes the edge that speech coil framework is stablized be vibrated perpendicular to the direction in magnetic field.
Preferably, the speech coil framework includes support frame 32 and voice coil portion 31, as shown in Figure 1, 2, the support frame
32 be cylinder barrel shaped structure, and the top of support frame 32 is engaged with the opening of the vibrating diaphragm, forms the first joint close 032, described
First joint close, 032 solder joints.The voice coil portion 31 is wound by coil, can be wrapped in the support frame 32
Lower part, or be bonded on the surface of the support frame 32.As shown in Fig. 2, the voice coil portion 31 extend into the magnetic circuit system
In system, it is located in the magnetic field that magnetic circuit system generates.
Particularly, there can be at least one heat emission hole 33 on the support frame 32, in a particular embodiment, such as Fig. 2
Shown, the part in voice coil portion 31 is not arranged on the support frame 32 can uniformly be distributed multiple heat emission holes 33.The heat dissipation
Hole 33 is capable of providing better dissipating-heat environment, and the heat generated when magnetic circuit system being made to work quickly passes to outside speech coil framework.Separately
On the one hand, the heat emission hole 33 can also play the role of equilibrium air pressure, and speech coil framework up-down vibration in magnetic circuit system can be made
At the compression or expansion of its inner space.But as shown in Fig. 2, the gap between the speech coil framework and magnetic circuit system is smaller,
The air of speech coil framework inner space is in compression or expansion, it is difficult to discharge immediately or supplement, easily cause inside speech coil framework with
The unbalanced phenomenon of external pressure, seriously affects the free vibration of vibrating diaphragm.When having heat emission hole 33 on the support frame 32,
Air inside speech coil framework can be swapped by heat emission hole 33 with outside, have the function that equilibrium air pressure.
In a specific embodiment of the present invention, the magnetic circuit system may include frame 51, upper magnet 52, upper washer 53,
Lower magnet 54 and lower washer 55.As shown in Figure 1, 2, the bottom surface of the frame 51 is circle, the top installation of 51 side wall of frame
On the housing, the frame 51 constitutes the basic shape of the speaker unit with the housing combination.The frame 51
Inside is equipped with center magnetic path, the center magnetic path include successively from top to bottom upper magnet 52, upper washer 53, lower magnet 54 and under
Washer, there are gaps between the center magnetic path and the side wall of the frame 51, are produced between center magnetic path and the side wall of frame 51
Raw uniform magnetic field.The lower part of the speech coil framework is extend into above-mentioned gap, is located in the uniform magnetic field.The speech coil framework
It is sleeved on the outside of the center magnetic path, the side wall of frame 51 is located at the outside of the speech coil framework.
The dust cap 6, cone basin 22 and support frame 32 are made of the material that can be welded, and use metal under normal conditions
Material.Preferably, it can be made using aluminium, the density of aluminium is relatively low, lighter weight, can reduce the shadow to sound quality to the greatest extent
It rings, and aluminium thermal conductivity is good, it being capable of rapid cooling.In addition, the dust cap 6, cone basin 22 and support frame 32 can be with
The material that can be welded by other is made, and those skilled in the art can select material according to actual conditions, and the present invention is not to this
It is limited.
In addition, as shown in Figure 1, 2, the speech coil framework can also include the voice coil leads 34 for receiving voice signal,
The voice coil leads 34 can be connected on support frame 32, can also directly be drawn from voice coil portion 31.The loud speaker dress
It can also includes lead socket 7 for fixing the voice coil leads 34 to set, and the lead socket 7 is mounted on the side of the shell
The end in face, the voice coil leads 34 is inserted in or is welded in the lead socket 7.External voice signal cable can also be inserted
In the lead socket 7, directly docked with the voice coil leads 34.
The overall structure that speaker unit of the present invention is shown in Fig. 3, be welded to connect and coat bonding agent first,
Second joint close can form good sealing, and the strength difference between joint close and both sides component is smaller, sound and vibrational energy
It is enough that vibrating diaphragm and dust cap 6 are smoothly transmitted to from speech coil framework, avoid sound wave from generating flaw in transmittance process.On the other hand,
Effectively heat can be spread out of using vibrating diaphragm made of aluminium, dust cap 6 and support frame 32.The shell is ensureing machinery
Under the premise of intensity, heat dissipation notch can be set, to mitigate weight, preferably spread out of heat.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that above example merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of speaker unit, which is characterized in that including：
Shell (1)；
Magnetic circuit system for generating magnetic field, the magnetic circuit system are mounted on the shell (1)；
Vibrating diaphragm on the shell (1), the vibrating diaphragm centre have opening；
Speech coil framework (3), the speech coil framework (3) are fixedly mounted on the opening of the vibrating diaphragm, are suspended on the shell (1)
In, there is the first joint close (032) between the speech coil framework (3) and the vibrating diaphragm；
Dust cap (6), the dust cap (6) are fixedly mounted on the vibrating diaphragm, cover the opening of the vibrating diaphragm, the dust cap
(6) there is the second joint close (062) between the vibrating diaphragm；
The speech coil framework (3), dust cap (6) and vibrating diaphragm are made of metal material, first joint close (032) and/
Or second joint close (062) is engaged in the form of intermittent weld, in the form of intermittent weld engage the first joint close (032) and/
Or second be completely sealed coated with bonding agent on joint close (062), the dust cap by the upper side and lower side of the vibrating diaphragm every
From.
2. speaker unit according to claim 1, which is characterized in that first engagement engaged in the form of intermittent weld
Stitching has at least two equally distributed solder joints on (032) and/or the second joint close (062).
3. speaker unit according to claim 1, which is characterized in that the vibrating diaphragm includes the ring (21) and cone of annular
The outer edge of basin (22), the ring (21) is connect with the shell (1), on the inward flange and cone basin (22) of the ring (21)
Edge connects, and the lower edge of the cone basin (22) is fixedly connected with the speech coil framework (3).
4. speaker unit according to claim 1, which is characterized in that the speaker unit includes being mounted on outside described
Centring disk (4) in shell (1), the centring disk (4) connect with the speech coil framework (3).
5. according to claim 1-4 it is one of arbitrary described in speaker unit, which is characterized in that the speech coil framework (3) includes
Support frame (32) and voice coil portion (31), the support frame (32) are welded with the vibrating diaphragm, and the voice coil portion (31) stretches into institute
It states in magnetic field.
6. speaker unit according to claim 5, which is characterized in that the support frame (32) has at least one dissipate
Hot hole (33).
7. speaker unit according to claim 1, which is characterized in that the magnetic circuit system include frame (51) and according to
Secondary upper magnet (52), upper washer (53), lower magnet (54) and the lower washer being arranged in the frame (51), the upper magnet
(52), there is magnetic field between upper washer (53), lower magnet (54) and lower washer (55) and the side wall of the frame (51).
8. speaker unit according to claim 5, which is characterized in that the dust cap, cone basin (22) and the support
The material of skeleton (32) is aluminium.
9. speaker unit according to claim 5, which is characterized in that the voice coil portion (31) is wrapped in the support rib
On frame.
10. speaker unit according to claim 1, which is characterized in that the speech coil framework (3) includes for receiving sound
The voice coil leads (34) of sound signal, the speaker unit include for fixing the lead socket of the voice coil leads (34) (7),
The lead socket (7) is mounted on the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233032.0A CN104837097B (en) | 2015-05-08 | 2015-05-08 | A kind of speaker unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233032.0A CN104837097B (en) | 2015-05-08 | 2015-05-08 | A kind of speaker unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104837097A CN104837097A (en) | 2015-08-12 |
| CN104837097B true CN104837097B (en) | 2018-11-02 |
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ID=53814683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510233032.0A Active CN104837097B (en) | 2015-05-08 | 2015-05-08 | A kind of speaker unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104837097B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187997A (en) | 2015-10-16 | 2015-12-23 | 歌尔声学股份有限公司 | Loudspeaker |
| CN111901732B (en) * | 2020-06-24 | 2021-04-27 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2220710Y (en) * | 1994-12-02 | 1996-02-21 | 陈正宗 | Radial magnet loudspeaker of radial magnetic field |
| JP3985987B2 (en) * | 1999-09-27 | 2007-10-03 | パイオニア株式会社 | Speaker device and cooling device for speaker device |
| WO2008085177A1 (en) * | 2007-01-12 | 2008-07-17 | Samson Technologies Corporation | Speaker motor and speaker |
| FR2955444B1 (en) * | 2010-01-15 | 2012-08-03 | Phl Audio | COAXIAL SPEAKER SYSTEM WITH COMPRESSION CHAMBER |
| CN104427442A (en) * | 2013-08-22 | 2015-03-18 | 昆山迈思科兄弟光电科技有限公司 | Diaphragm laser welding apparatus and processing technology thereof |
| CN203851283U (en) * | 2014-04-21 | 2014-09-24 | 歌尔声学股份有限公司 | Loudspeaker diaphragm assembly |
| CN204559877U (en) * | 2015-05-08 | 2015-08-12 | 歌尔声学股份有限公司 | A kind of speaker unit |
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2015
- 2015-05-08 CN CN201510233032.0A patent/CN104837097B/en active Active
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