CN208581349U - Vibrational system and loudspeaker - Google Patents
Vibrational system and loudspeaker Download PDFInfo
- Publication number
- CN208581349U CN208581349U CN201820773257.4U CN201820773257U CN208581349U CN 208581349 U CN208581349 U CN 208581349U CN 201820773257 U CN201820773257 U CN 201820773257U CN 208581349 U CN208581349 U CN 208581349U
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- vibrating diaphragm
- voice coil
- vibrational system
- outlet side
- reinforcement part
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The utility model discloses a kind of vibrational system, including vibrating diaphragm and secure bond in the voice coil of the diaphragm surface, the voice coil includes the voice coil ontology of annular and the lead from the extraction of the same side of the voice coil ontology, the voice coil ontology includes the outlet side positioned at the lead extraction location, and the free side opposite with the outlet side, the vibrating diaphragm includes vibrating diaphragm body part and the vibrating diaphragm reinforcement part for being incorporated into vibrating diaphragm body part surface, the quality that the vibrating diaphragm reinforcement part corresponds to the part of the outlet side is less than the quality that the vibrating diaphragm reinforcement part corresponds to the part of the free side.The vibrating diaphragm of the utility model corresponds to voice coil and draws quality of the quality of side section less than vibrating diaphragm corresponding to the free side section of voice coil, to balance the quality of voice coil leads, reduce due to the Mass Distribution of vibrational system it is unbalanced caused by polarization phenomena, so as to improve the acoustic mass of loudspeaker.
Description
Technical field
The utility model relates to acoustical devices.More particularly, to a kind of vibrational system, and it is applied to this vibrational system
Loudspeaker.
Background technique
Currently, Microspeaker in the prior art includes vibrational system, magnetic circuit system and auxiliary system.Wherein, it shakes
Dynamic system includes vibrating diaphragm and voice coil.Voice coil is sticked in the side of vibrating diaphragm.Voice coil has lead for connecting with external circuit.Magnetic circuit
System includes centring magnet, side magnet, center washer and Bian Huasi.Wherein, center washer is sticked on centring magnet, Bian Hua
Department is sticked on the magnet of side, forms magnetic gap between center washer and centring magnet and Bian Huasi and side magnet.Voice coil is inserted into magnetic
In magnetic gap in the system of road.After voice coil is passed through alternating current, voice coil is acted in magnetic gap by upper and lower Ampere force, is made
Voice coil drives vibrating diaphragm to vibrate up and down.There are the centre of oscillation position on space in vibrational system, ideally vibrational system
Mass center be overlapped with the centre of oscillation, the mass center of vibrational system levels off to zero relative to the resultant moment in the centre of oscillation at this time.Due to
Voice coil is provided with hanging lead, and the quality of the outlet side and free side that lead to voice coil is not completely equivalent, and exists and is unevenly distributed
The case where, this will make the mass center of vibrational system deviate the centre of oscillation, and cause vibrational system to polarize, so that it is distorted raising,
When polarizing serious, voice coil and magnetic structure wiping are touched, and seriously affect music effect.
Accordingly, it is desirable to provide a kind of novel vibrational system, to overcome defect existing in the prior art.
Utility model content
The purpose of this utility model is to provide one kind can adjust centroid position, to improve the vibration system of polarization phenomena
System.
One aspect according to the present utility model provides a kind of vibrational system, including vibrating diaphragm and secure bond in institute
The voice coil of diaphragm surface is stated, the voice coil includes the voice coil ontology of annular and draws from what the same side of the voice coil ontology was drawn
Line, the voice coil ontology include the outlet side and the free side opposite with the outlet side positioned at the lead extraction location,
The vibrating diaphragm includes vibrating diaphragm body part and the vibrating diaphragm reinforcement part for being incorporated into vibrating diaphragm body part surface, and the vibrating diaphragm reinforcement part corresponds to
The quality of the part of the outlet side is less than the quality that the vibrating diaphragm reinforcement part corresponds to the part of the free side.
Preferably, the vibrating diaphragm reinforcement part is set as the shape being gradually increased by the area for drawing lateral free side.
Preferably, the vibrating diaphragm reinforcement part is set as trapezoidal shape, and the trapezoidal short side corresponds to the outlet side, ladder
The long side of shape corresponds to the free side.
Preferably, the two trapezoidal waists are set as being recessed inwardly arc-shaped.
Preferably, the vibrating diaphragm body part includes sequentially connected central part, ring portion and fixed part from inside to outside, described
Voice coil secure bond is in the lower surface of the central part, and vibrating diaphragm reinforcement part secure bond is in the upper surface of the central part.
Preferably, the part in the outside of the vibrating diaphragm reinforcement part is provided with reinforcing rib in the centre；It is described to add
Strengthening tendons correspond to the outlet side setting.
Preferably, the reinforcing rib is directed away from the voice coil side by central part bending and convexes to form or by described
Central part bending is recessed to be formed towards close to the voice coil side.
Preferably, the reinforcing rib is arranged in the trapezoidal two sides, and every side is arranged multiple reinforcing ribs, two sides it is described
Multiple reinforcing ribs dissipate arrangement towards the trapezoidal center.
Preferably, the cross sectional shape of the reinforcing rib is rectangle, semicircle or triangle.
Other side according to the present utility model provides a kind of loudspeaker, which includes above-mentioned vibration system
System.
The beneficial effects of the utility model are as follows:
The utility model keeps vibrating diaphragm small corresponding to the quality of voice coil extraction side section by adjusting the shape of vibrating diaphragm reinforcement part
Correspond to the quality of the free side section of voice coil in vibrating diaphragm, to balance the quality of voice coil leads, reduces the matter due to vibrational system
Amount is unevenly distributed polarization phenomena caused by weighing apparatus, so as to improve the acoustic mass of loudspeaker.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 shows the decomposition texture schematic diagram of the vibrational system of the utility model.
Fig. 2 shows the decomposition texture schematic diagrams of the loudspeaker of the utility model.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one below with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not be limited the protection scope of the present invention.
As shown in Figure 1, the vibrational system 300 of one embodiment of the utility model includes that vibrating diaphragm 10 and combination are fixed on
The voice coil 20 on 10 surface of vibrating diaphragm, vibrating diaphragm 10 include vibrating diaphragm body part 11 and the vibrating diaphragm for being fixed on 11 surface of vibrating diaphragm body part are combined to mend
Strong portion 12, voice coil 20 include the voice coil ontology 21 of annular and the lead 22 from the extraction of the same side of voice coil ontology 21, lead 22
For a pair being vacantly arranged.Voice coil ontology 21 includes opposite positioned at the outlet side 23 of 22 extraction location of lead and with outlet side 23
Free side 24, since outlet side 23 and the quality of free side 24 are not completely equivalent, the amplitude of the biggish outlet side 23 of quality compared with
Small, the amplitude of the lesser free side 24 of quality is larger, and the imbalance of amplitude can make vibrational system polarization problem occur.Therefore this reality
It is less than the area corresponding to free side, i.e. vibrating diaphragm reinforcement with the area that novel vibrating diaphragm reinforcement part 12 corresponds to the part of outlet side
The quality that portion 12 corresponds to outlet side 23 is less than the quality corresponding to free side, adjusts vibrational system by vibrating diaphragm reinforcement part 12
Mass center deviates the mass center of vibrational system to the centre of oscillation, can reduce and draw since the Mass Distribution of vibrational system is unbalanced
The polarization phenomena risen, so as to improve the acoustic mass of loudspeaker.
In the present embodiment, vibrating diaphragm reinforcement part 12 is set as the shape being gradually increased from outlet side 23 to the area of free side 24
Shape.Specifically, vibrating diaphragm reinforcement part 12 is set as trapezoidal shape, trapezoidal short side corresponds to outlet side 23, and trapezoidal long side is corresponding
In free side 24, two trapezoidal waists are set as being recessed inwardly arc-shaped.To shake using the vibrating diaphragm reinforcement part 12 of above-mentioned shape
The quality that film 10 corresponds to outlet side 23 is less than the quality of free side 24, balances the quality of lead 22, finally makes vibration system
The mass center of system is deviated to the centre of oscillation, polarization phenomena caused by reducing because of Mass Distribution unevenness.The shape of vibrating diaphragm reinforcement part 12
Can be it is trapezoidal be also possible to triangle, and those skilled in the art can according to actual needs become trapezoidal or triangle
Shape is overlapped the mass center of vibrational system as far as possible with the centre of oscillation, reduces because polarizing caused by mass unbalance.
Further, vibrating diaphragm body part 11 includes sequentially connected central part 13, ring portion 14 and fixed part from inside to outside
15,20 secure bond of voice coil is in the lower surface of central part 13, and 12 secure bond of vibrating diaphragm reinforcement part is in the upper surface of central part 13.?
Central part 13, which is located on the outer surface of vibrating diaphragm reinforcement part 12, is provided with reinforcing rib 16.In can be improved due to vibrating diaphragm reinforcement part 12
The rigidity of center portion 13 improves rigidity by setting reinforcing rib 16 in the region not covered by vibrating diaphragm reinforcement part 12.It is preferred that
, in the position of the correspondence outlet side, reinforcing rib is set.
Specifically, reinforcing rib 16 is arranged on the outside of two waists of the vibrating diaphragm reinforcement part 12 of trapezoidal shape, 3 reinforcements are arranged in every side
Muscle, and the reinforcing rib of every side dissipates towards trapezoidal center and is arranged.Reinforcing rib 16 by 13 surface of central part be folded upward at protrusion or
Recess is formed downwards, in actual production, can be when suppressing vibrating diaphragm, while reinforcing rib 16 is suppressed on central part 13.This reality
The reinforcing rib 16 for applying mode is upwardly away from voice coil direction and convexes to form, and the cross sectional shape of reinforcing rib 16 can be rectangle, triangle
Or it is semicircle.
Based on above-mentioned design, the utility model also provides a kind of loudspeaker, one embodiment as shown in Figure 2, the loudspeaking
Device includes vibrational system 300 and magnetic circuit system 400.Magnetic circuit system includes conductive magnetic yoke 43, secure bond in 43 upper surface of conductive magnetic yoke
Magnet 42 and be incorporated into the washer 41 of magnet upper surface, form magnetic field between conductive magnetic yoke 43, magnet 42 and washer 41,
Specifically, forming magnetic gap between the side wall and magnet 42 of conductive magnetic yoke 43.Voice coil 20 is suspended in the magnetic gap, is set on voice coil 20
There is lead 22, lead 22 is a pair being vacantly arranged.Wherein, it can connect terminal on lead 22, it can be with by terminal voice coil 20
It is connect with external circuit.When the audio signal of external circuit passes through voice coil 20, the voice coil 20 of energization is in magnetic field internal vibration, vibration
Voice coil 20 drive vibrating diaphragm 10 to vibrate, vibrating diaphragm instigates air sounding.The loudspeaker of the utility model further includes front housing 51 and rear shell
52, for 51 secure bond of front housing in rear shell 52, vibrational system 300 and magnetic circuit system can be accommodated by foring between front housing 51 and rear shell 52
The accommodation space of system 400.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is all to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The column of protection scope.
Claims (10)
1. a kind of vibrational system, including vibrating diaphragm and secure bond in the voice coil of the diaphragm surface, the voice coil includes annular
Voice coil ontology and the lead drawn from the same side of the voice coil ontology, the voice coil ontology includes being located at the lead to draw
The outlet side of out position and the free side opposite with the outlet side, the vibrating diaphragm include vibrating diaphragm body part and are incorporated into vibration
The vibrating diaphragm reinforcement part on membrane body portion surface, which is characterized in that the vibrating diaphragm reinforcement part corresponds to the matter of the part of the outlet side
Amount is less than the quality that the vibrating diaphragm reinforcement part corresponds to the part of the free side.
2. vibrational system according to claim 1, which is characterized in that the vibrating diaphragm reinforcement part is set as by the outlet side
The shape being gradually increased to the area of free side.
3. vibrational system according to claim 2, which is characterized in that the vibrating diaphragm reinforcement part is set as trapezoidal shape, institute
It states trapezoidal short side and corresponds to the free side corresponding to the outlet side, trapezoidal long side.
4. vibrational system according to claim 3, which is characterized in that the two trapezoidal waists are set as the circle being recessed inwardly
Arc.
5. vibrational system according to claim 4, which is characterized in that the vibrating diaphragm body part includes successively connecting from inside to outside
Central part, ring portion and the fixed part connect, the voice coil secure bond is in the lower surface of the central part, the vibrating diaphragm reinforcement part
Secure bond is in the upper surface of the central part.
6. vibrational system according to claim 5, which is characterized in that in the centre in the vibrating diaphragm reinforcement part
The part in outside is provided with reinforcing rib；The reinforcing rib corresponds to the outlet side setting.
7. vibrational system according to claim 6, which is characterized in that the reinforcing rib is by central part bending towards far
It convexes to form from the voice coil side or is formed by central part bending towards being recessed close to the voice coil side.
8. vibrational system according to claim 6, which is characterized in that the trapezoidal two sides are arranged in the reinforcing rib,
And multiple reinforcing ribs are arranged in every side, the multiple reinforcing rib of two sides dissipates arrangement towards the trapezoidal center.
9. vibrational system according to claim 6, which is characterized in that the cross sectional shape of the reinforcing rib is rectangle, semicircle
Shape or triangle.
10. a kind of loudspeaker, which is characterized in that the loudspeaker includes any vibrational system of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820773257.4U CN208581349U (en) | 2018-05-23 | 2018-05-23 | Vibrational system and loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820773257.4U CN208581349U (en) | 2018-05-23 | 2018-05-23 | Vibrational system and loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208581349U true CN208581349U (en) | 2019-03-05 |
Family
ID=65506311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820773257.4U Active CN208581349U (en) | 2018-05-23 | 2018-05-23 | Vibrational system and loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208581349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391214A (en) * | 2018-05-23 | 2018-08-10 | 歌尔股份有限公司 | Vibrational system and loud speaker |
-
2018
- 2018-05-23 CN CN201820773257.4U patent/CN208581349U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391214A (en) * | 2018-05-23 | 2018-08-10 | 歌尔股份有限公司 | Vibrational system and loud speaker |
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