CN104822115B - A kind of speaker unit - Google Patents
A kind of speaker unit Download PDFInfo
- Publication number
- CN104822115B CN104822115B CN201510233535.8A CN201510233535A CN104822115B CN 104822115 B CN104822115 B CN 104822115B CN 201510233535 A CN201510233535 A CN 201510233535A CN 104822115 B CN104822115 B CN 104822115B
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- vibrating diaphragm
- coil framework
- speaker unit
- dust cap
- 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 the vibrating diaphragm.The speech coil framework is 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 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 welding is fully sealed, 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 welding is fully sealed, the dust cap
The upper side and lower side of the vibrating diaphragm is isolated.
Preferably, the vibrating diaphragm includes the ring and cone basin of annular, the outer edge of the ring and the cage connection, institute
The inward flange for stating 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 may include the centring disk being mounted in the shell, the centring disk and the sound
Ring 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 arranged in the frame, upper washer, lower magnet and
Lower washer has magnetic field between the upper magnet, upper washer, lower magnet and lower washer and the side wall of the frame.
Preferably, the material of the dust cap, cone basin and the support frame is 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 can also include the lead socket for fixing the voice coil leads, described to draw
Line socket is installed 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 is fixedly mounted on the opening among the vibrating diaphragm, has the first joint close between the speech coil framework and the vibrating diaphragm.Institute
It states vibrating diaphragm to hang the speech coil framework in the housing, what the magnetic circuit system generated stretched into the lower part of the speech coil framework
In magnetic field.The dust cap generally in circular arc planar, is fixedly mounted on the vibrating diaphragm, and the opening of the vibrating diaphragm is covered, and is prevented
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 can
To be welded together by being fully sealed, second joint close can also be welded to connect by being fully sealed, completely close
Strength difference, sound and vibration are not present between the first joint close and/or the second joint close and the component of its both sides that soldering and sealing connects
Vibrating diaphragm and dust cap can be smoothly passed to from speech coil framework, and are spread out of outward.Since speech coil framework, dust cap and vibrating diaphragm are equal
Consist of metal, so heat can also be spread out of rapidly, prevents superheating phenomenon.In addition, the dust cap is by the vibrating diaphragm
The upper side and lower side it is completely isolated, acoustic short circuit phenomenon can be prevented.Dust cap, which also has, prevents foreign matter, dust from falling into loud speaker dress
Set internal effect.
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 1.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 1 connects, and the lower edge of the cone basin 22 surrounds opening, stretches into the shell 1.In general, the ring 21 with it is outer
1 bonding connection of shell, the ring 21 is with cone basin 22 also by bonding connection.The cone basin 22 is used as main sound-producing device,
It being made of metal material in the present embodiment, the ring 21 should have enough intensity and toughness as suspention connector, and
Enough Oscillation Amplitudes are provided for cone basin 22 and speech coil framework 3.Rubber, high molecular polymer material may be used in the ring 21
Material, or in order to further increase heat dissipation effect and sound quality, the ring 21 can also use metal material.Ring 21 with
It needs closely to be fixedly connected between cone basin 22, those skilled in the art can select different materials to make according to actual needs
The ring 21.The dust cap 6 can be mounted on the upper surface of described cone basin 22 by the way that welding is fully sealed, by the cone basin 22
Opening cover, the welds joint of the dust cap 6 and the cone basin 22 is the second joint close 062.The dust cap 6 is used for
Prevent dust, foreign matter from falling into, dust cap 6 also takes on part vocal function.The dust cap 6 uses and cone basin 22 in the present invention
Identical material is made, to reach better sound effect.The speech coil framework 3 is mounted on the opening of the cone basin 22, i.e.,
At the lower edge of cone basin 22, there is the first joint close 032 between the speech coil framework 3 and the vibrating diaphragm.Due to speech coil framework 3
It is metal structure, so, the lower edge of cone basin 22 can be installed together with the speech coil framework 3 by the way that welding is fully sealed,
Sound and vibration is allow smoothly to be transmitted to cone basin 22 from speech coil framework 3.The vibrating diaphragm hangs the speech coil framework 3
In shell 1, the lower part of speech coil framework 3 is extend into the magnetic circuit system, 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 inside the shell 1, centering branch
The outer edge of piece 4 is fixedly connected with the shell 1, and inner edges are connected with the side wall of the speech coil framework 3.Centring disk 4 is used
In the vibrational state for stablizing speech coil framework 3, the edge that speech coil framework 3 is stablized is made to be vibrated perpendicular to the direction in magnetic field.
Preferably, the speech coil framework 3 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 and the opening of the vibrating diaphragm are welded to connect.The voice coil portion 31 is by coil
It is wound, the lower part of the support frame 32 can be wrapped in, or be bonded on the surface of the support frame 32.Such as
Shown in Fig. 2, the voice coil portion 31 is extend into the magnetic circuit system, 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 3.Separately
On the one hand, the heat emission hole 33 can also play the role of equilibrium air pressure, and the up-down vibration in magnetic circuit system of speech coil framework 3 can be made
At the compression or expansion of its inner space.But as shown in Fig. 2, gap between the speech coil framework 3 and magnetic circuit system compared with
Small, the air of 3 inner space of speech coil framework is in compression or expansion, it is difficult to which discharge immediately or supplement easily cause in speech coil framework 3
Portion and the unbalanced phenomenon of external pressure, seriously affect the free vibration of vibrating diaphragm.When on the support frame 32 have heat emission hole
When 33, the air inside speech coil framework 3 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 shell 1, the frame 51 combines the basic shape for constituting the speaker unit with the shell 1.The frame
Center magnetic path is installed, the center magnetic path includes upper magnet 52, upper washer 53,54 and of lower magnet successively from top to bottom inside 51
Lower washer 55, there are gap between the center magnetic path and the side wall of the frame 51, the side wall of center magnetic path and frame 51 it
Between generate uniform magnetic field.The lower part of the speech coil framework 3 is extend into above-mentioned gap, is located in the uniform magnetic field.The sound
Ring framework 3 is sleeved on the outside of the center magnetic path, and the side wall of frame 51 is located at the outside of the speech coil framework 3.
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 use of the dust cap 6, cone basin 22 and support frame 32
Other materials that can be welded are made, those skilled in the art can according to actual conditions select material, the present invention not to this into
Row limitation.
In addition, as shown in Figure 1, 2, the speech coil framework 3 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 shell 1
The end of side, the voice coil leads 34 is inserted in or is welded in the lead socket 7.External voice signal cable can also
It is inserted in the lead socket 7, is directly docked with the voice coil leads 34.
The second joint close 062 of welding is fully sealed in the overall structure that speaker unit of the present invention is shown in Fig. 3
Good sealing can be formed, strength difference is not present between the second joint close 062 and the component of its both sides.First engagement
Seam 032 can also using welding is fully sealed by the way of, sound and vibration can be smoothly transmitted to from speech coil framework 3 vibrating diaphragm with
Dust cap 6, avoids sound wave from generating flaw in transmittance process.On the other hand, using vibrating diaphragm made of aluminium, dust cap 6 and branch
Support bone frame 32 can effectively spread out of heat.The shell 1 can be arranged heat dissipation and lack under the premise of ensureing mechanical strength
Mouthful, to mitigate weight, preferably heat is spread out of.
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 (8)
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；
First joint close (032) and/or second joint close (062) are engaged in the form of welding is fully sealed, described
The upper side and lower side of the vibrating diaphragm is isolated dust cap (6)；
The material of the speech coil framework (3), dust cap (6) and vibrating diaphragm is identical metal material；
The speech coil framework (3) includes support frame (32) and voice coil portion (31), and the support frame (32) is welded with the vibrating diaphragm
It connects, the voice coil portion (31) is stretched into the magnetic field, and the support frame (32) has at least one heat emission hole (33).
2. 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).
3. 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).
4. speaker unit according to claim 1, which is characterized in that the magnetic circuit system includes frame (51) and sets
Set upper magnet (52), upper washer (53), lower magnet (54) and lower washer (55) 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).
5. speaker unit according to claim 1, which is characterized in that the dust cap (6), cone basin (22) and the branch
The material of support bone frame (32) is aluminium.
6. speaker unit according to claim 1, which is characterized in that the voice coil portion (31) is wrapped in the support rib
On frame (32).
7. 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.
8. speaker unit according to claim 7, which is characterized in that including being used to fix the voice coil leads (34)
Lead socket (7), the lead socket (7) are mounted on the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233535.8A CN104822115B (en) | 2015-05-08 | 2015-05-08 | A kind of speaker unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233535.8A CN104822115B (en) | 2015-05-08 | 2015-05-08 | A kind of speaker unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104822115A CN104822115A (en) | 2015-08-05 |
| CN104822115B true CN104822115B (en) | 2018-11-02 |
Family
ID=53732259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510233535.8A Active CN104822115B (en) | 2015-05-08 | 2015-05-08 | A kind of speaker unit |
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| Country | Link |
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| CN (1) | CN104822115B (en) |
Families Citing this family (10)
| 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 |
| CN105828257A (en) * | 2016-05-18 | 2016-08-03 | 歌尔声学股份有限公司 | Loudspeaker |
| CN105959886B (en) * | 2016-06-22 | 2020-03-24 | 新昌县七星街道鑫瑞机械厂 | High strength high heat dispersion speaker |
| JP6990250B2 (en) | 2017-10-13 | 2022-01-12 | フォスター電機株式会社 | Speaker unit |
| CN109246555B (en) * | 2018-11-23 | 2021-01-05 | 江门波威音响器材有限公司 | Voice coil and loudspeaker thereof |
| CN110572754A (en) * | 2019-08-26 | 2019-12-13 | 歌尔股份有限公司 | Vibration system of sound production device and forming method thereof |
| CN111131971B (en) * | 2019-12-18 | 2021-07-23 | 歌尔股份有限公司 | Sound production device and electronic terminal |
| CN111436015A (en) * | 2019-12-30 | 2020-07-21 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN213462305U (en) * | 2020-07-06 | 2021-06-15 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN111988712B (en) * | 2020-08-31 | 2022-02-18 | 歌尔股份有限公司 | Speaker monomer and electronic terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008085177A1 (en) * | 2007-01-12 | 2008-07-17 | Samson Technologies Corporation | Speaker motor and speaker |
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| CN2220710Y (en) * | 1994-12-02 | 1996-02-21 | 陈正宗 | Radial magnet loudspeaker of radial magnetic field |
| US6665414B1 (en) * | 1999-09-27 | 2003-12-16 | Pioneer Corporation | Speaker system and cooling device therefor |
| WO2011086300A1 (en) * | 2010-01-15 | 2011-07-21 | Phl Audio | Coaxial speaker system having a compression chamber with a horn |
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Also Published As
| Publication number | Publication date |
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| CN104822115A (en) | 2015-08-05 |
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