CN208210287U - Acoustical generator - Google Patents
Acoustical generator Download PDFInfo
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- CN208210287U CN208210287U CN201820627747.3U CN201820627747U CN208210287U CN 208210287 U CN208210287 U CN 208210287U CN 201820627747 U CN201820627747 U CN 201820627747U CN 208210287 U CN208210287 U CN 208210287U
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- 239000000758 substrate Substances 0.000 claims description 15
- 230000008719 thickening Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 230000006978 adaptation Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 8
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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Abstract
The utility model discloses a kind of acoustical generator, comprising: vibrational system and magnetic circuit system, wherein vibrational system includes voice coil ontology and the lead that is electrically connected with the voice coil ontology, and the side that the lead is drawn is leading part；Magnetic circuit system include centring magnet, set on centring magnet periphery while magnet and set on while magnet close to vibrational system side side magnetic conductive board, side magnetic conductive board include the first magnetic-conductance portion and the second magnetic-conductance portion；First magnetic-conductance portion corresponds to leading part setting, and is formed between leading part and keep away bit space；First magnetic-conductance portion and the second magnetic-conductance portion and the one side of side magnet cooperation are the back side, and the back side of the first magnetic-conductance portion is compared closer to vibrational system, to form the increment space installed for side magnet at the back side of the second magnetic-conductance portion in the back side of the second magnetic-conductance portion.The acoustical generator that the application proposes can be using the space between vibrating diaphragm and the second magnetic-conductance portion, and then increases the magnetic flux of magnetic circuit system, to improve the sensitivity of acoustical generator.
Description
Technical field
The utility model relates to electroacoustic switch technology field, in particular to a kind of acoustical generator.
Background technique
Acoustic generation system is usually made of vibrational system, magnetic circuit system and auxiliary system, wherein the effect of magnetic circuit system is
Magnetic field is provided；Vibrational system includes vibrating diaphragm and voice coil, and voice coil can vibrate under the action of magnetic field and electric field, and then be able to drive
Diaphragm oscillations sounding；Auxiliary system includes shell, lead etc..Lead is for connecting voice coil, to power for voice coil, due to voice coil
The presence of lead leads to the height-limited of the magnetic circuit of voice coil leads side.
The side magnetic conductive board of existing acoustical generator is plane frame like structure, and therefore, the height of side magnetic circuit is consistent；Again because voice coil draws
Line will lead to the height-limited of lead side magnetic circuit, therefore will lead to the height-limited of the entire side magnetic circuit of acoustical generator, be unable to fully benefit
With the space between vibrating diaphragm and side magnetic conductive board.
Utility model content
The main purpose of the utility model is to propose a kind of acoustical generator, it is intended to make full use of the sky between vibrating diaphragm and side magnetic conductive board
Between, improve the sensitivity of acoustical generator.
To achieve the above object, the utility model proposes acoustical generator, comprising: vibrational system, including voice coil ontology and with
The lead of the voice coil ontology electrical connection, the side that the lead is drawn are leading part；Magnetic circuit system, including centring magnet, set
In centring magnet periphery while magnet and set on it is described while side magnetic conductive board of the magnet close to the vibrational system side, institute
Stating side magnetic conductive board includes the first magnetic-conductance portion and the second magnetic-conductance portion；First magnetic-conductance portion corresponds to leading part setting, and with institute
It states to be formed between leading part and keeps away bit space；First magnetic-conductance portion and the second magnetic-conductance portion and the one side of side magnet cooperation are back
The back side of first magnetic-conductance portion is compared closer to the vibrational system, described in face, the back side of second magnetic-conductance portion
The back side of second magnetic-conductance portion forms the increment space for side magnet installation.
Preferably, first magnetic-conductance portion and the second magnetic-conductance portion are respectively arranged with two, two first magnetic-conductance portions and two
Second magnetic-conductance portion is enclosed the side magnetic conductive board.
Preferably, the magnet and two second side magnet when magnet includes two first in split settings, two described the
One side magnet is arranged in a one-to-one correspondence with two first magnetic-conductance portions, and two second side magnet and two second magnetic-conductance portions are one by one
It is correspondingly arranged.
Preferably, described second when magnet is with described first magnet be in long blocky setting, and second side magnet
Length be greater than first side magnet length.
Preferably, the conductive magnetic yoke of the magnetic circuit system includes substrate, described first in magnet, second magnet and it is described in
Heart magnet is set on the substrate；In the substrate on the direction of the vibrational system, second side magnet protrusion
For first side magnet to form thickening part, the thickening part is set to the increment space.
Preferably, the thickness range of the thickening part is 0.1mm to 0.3mm.
Preferably, the surface away from the substrate of second side magnet protrude the centring magnet away from the base
The surface of plate is arranged.
Preferably, two first magnetic-conductance portions inner wall adjacent to each other is equipped with the supporting table for the gage lap
Rank.
Preferably, the upper surface of the support level is recessed with the cabling channel being adapted to the lead.
Preferably, interconnecting piece, the section of the interconnecting piece are equipped between first magnetic-conductance portion and second magnetic-conductance portion
Area be less than first magnetic-conductance portion and second magnetic-conductance portion section area.
The side magnetic conductive board that the application proposes is arranged in nonplanar structure, and the height of the first magnetic-conductance portion and the second magnetic-conductance portion is different
It causes, wherein for the first magnetic-conductance portion due to the limitation of leading part, height is certain；The application passes through second magnetic-conductance portion
The back side of the first magnetic-conductance portion is compared closer to vibrational system in the back side for being configured to the second magnetic-conductance portion with the first magnetic-conductance portion, so as to
The height of the second magnetic-conductance portion is enough improved, and then the increment space installed for side magnet can be formed at the back side of the second magnetic-conductance portion,
Therefore it can make full use of the space between vibrating diaphragm and the second magnetic-conductance portion, and then increase the magnetic flux of magnetic circuit system, to improve
The sensitivity of acoustical generator.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the decomposition texture schematic diagram of one embodiment of the utility model acoustical generator；
Fig. 2 is the structural schematic diagram of one embodiment of the utility model acoustical generator；
Fig. 3 is the schematic cross-sectional view in the direction III-III along Fig. 2；
Fig. 4 is the schematic cross-sectional view in the direction IV-IV along Fig. 2；
Fig. 5 is the structural schematic diagram of side magnetic conductive board in Fig. 1；
Fig. 6 is the schematic cross-sectional view in the direction VI-VI along Fig. 5；
Fig. 7 is the schematic cross-sectional view in the direction VII-VII along Fig. 5.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Voice coil ontology | 11 | Lead |
| 20 | Lead | 31 | First magnetic-conductance portion |
| 30 | Side magnetic conductive board | 32 | Second magnetic-conductance portion |
| 40 | First side magnet | 33 | Interconnecting piece |
| 50 | Second side magnet | 31a | Support level |
| 60 | Conductive magnetic yoke |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection scope of the requires of the utility model.
The utility model proposes a kind of acoustical generator, the acoustical generator can make full use of the sky between vibrating diaphragm and side magnetic conductive board
Between, and then increase the magnetic flux of magnetic circuit system, to improve the sensitivity of acoustical generator.
In an embodiment of the utility model, as shown in Figures 1 to 5, which includes: vibrational system and magnetic circuit system
System, wherein the vibrational system includes voice coil ontology 10 and the lead 11 that is electrically connected with the voice coil ontology 10, the lead 11
The side of extraction is leading part；The magnetic circuit system includes centring magnet 20, the side magnet set on 20 periphery of centring magnet
And set on it is described in magnet close to the while magnetic conductive board 30 of the vibrational system side, the side magnetic conductive board 30 includes the first magnetic conduction
Portion 31 and the second magnetic-conductance portion 32；The corresponding leading part setting of first magnetic-conductance portion 31, and formed between the leading part
Keep away bit space；First magnetic-conductance portion 31 and the second magnetic-conductance portion 32 and the one side of side magnet cooperation are the back side, described second
The back side of first magnetic-conductance portion 31 is compared closer to the vibrational system, in second magnetic conduction in the back side of magnetic-conductance portion 32
The back side in portion 32 forms the increment space for side magnet installation.
Due to the leading part setting of the corresponding voice coil ontology 10 of the first magnetic-conductance portion 31, leading part will limit the first magnetic-conductance portion
31 height, existing side magnetic conductive board 30 are arranged in tabular, and therefore, the height of side magnetic conductive board 30 will receive voice coil ontology 10 and draw
The limitation of line 11 is unable to fully utilize the space between side magnetic conductive board 30 and vibrating diaphragm.The side magnetic conductive board 30 that the application proposes includes the
One magnetic-conductance portion 31 and the second magnetic-conductance portion 32, the corresponding leading part setting of first magnetic-conductance portion 31, and with the leading part it
Between formed and keep away bit space, first magnetic-conductance portion 31 and the second magnetic-conductance portion 32 and the one side of side magnet cooperation are the back side, institute
The back side of first magnetic-conductance portion 31 is compared closer to the vibrational system, described in the back side for stating the second magnetic-conductance portion 32
The back side of two magnetic-conductance portions 32 forms the increment space for side magnet installation.
In other words, the side magnetic conductive board 30 that the application proposes is arranged in nonplanar structure, and the first magnetic-conductance portion 31 is led with second
The height in magnetic portion 32 is inconsistent, wherein for the first magnetic-conductance portion 31 due to the limitation of leading part, height is certain；The application is logical
It crosses and the first magnetic-conductance portion 31 is compared at the back side that second magnetic-conductance portion 32 and the first magnetic-conductance portion 31 are configured to the second magnetic-conductance portion 32
The back side is closer to vibrational system, so as to improve the height of the second magnetic-conductance portion 32, and then can be in the second magnetic-conductance portion 32
The back side forms the increment space installed for side magnet, therefore can make full use of the space between vibrating diaphragm and the second magnetic-conductance portion 32,
And then increase the magnetic flux of magnetic circuit system, to improve the sensitivity of acoustical generator.
Further, now the structure of the side magnetic conductive board 30 is described in detail to Fig. 7 referring to figure 5..The present embodiment
In, the side magnetic conductive board 30 is in frame-type structure setting.Specifically, first magnetic-conductance portion 31 and the second magnetic-conductance portion 32 are respectively set
There are two, two first magnetic-conductance portions 31 and two second magnetic-conductance portions 32 are enclosed the side magnetic conductive board 30, wherein two institutes
The junction for stating the first magnetic-conductance portion 31 and two second magnetic-conductance portions 32 is configured so that second magnetic-conductance portion 32 in bending
The back side is higher by the back side of first magnetic-conductance portion 31, so as to what is installed in the formation of the back side of the second magnetic-conductance portion 32 for side magnet
Increment space.
The design of right this patent is without being limited thereto, and in other embodiments, the side magnetic conductive board 30 can also include in fission
Two first magnetic-conductance portions 31 of structure setting and two second magnetic-conductance portions 32, in frame-type structure and integrally formed side magnetic conductive board 30 be in
The side magnetic conductive board 30 of separate structure setting is compared, and has packaging efficiency high in frame-type structure and integrally formed side magnetic conductive board 30
Advantage.
Further, Fig. 1 is please referred to, now the structure of the side magnet is described in detail, in the present embodiment, the side
Magnet include in split settings two first in magnet 40 and two second magnet 50, described in two first side magnet 40 and two
First magnetic-conductance portion 31 is arranged in a one-to-one correspondence, and two second side magnet 50 are arranged in a one-to-one correspondence with two second magnetic-conductance portions 32,
The magnetic flux that so, it is possible increase magnetic circuit system, improves the sensitivity of acoustical generator.
Further, Fig. 1 and Fig. 5 are please referred to, it is contemplated that the back side of the second magnetic-conductance portion 32 is formed with increment space, the second side
Magnet 50 is correspondingly arranged with the second magnetic-conductance portion 32, in order to make full use of increment space, in one embodiment of the application, and second side
Magnet 50 and first side magnet 40 are in long blocky setting, and described second when the length of magnet 50 is greater than described first
The length of magnet 40.Due to second when the length of magnet 50 is greater than first magnet 40 length, and the second side magnet 50 is corresponding
The setting of increment space, therefore when the volume of the second side magnet 50 of increase, enable to the magnetic flux of entire side magnetic circuit system substantially
It improves, and then the sensitivity of acoustical generator can be improved significantly.
Further, Fig. 1 to Fig. 4 is please referred to, now the magnetic circuit system of the application acoustical generator is described in detail.The magnetic
Road system includes the conductive magnetic yoke 60 set on the side away from the vibrational system of the side magnet, and the conductive magnetic yoke 60 includes base
Plate, described first in magnet 40, second magnet 50 and the centring magnet 20 be set on the substrate；It is leaned in the substrate
On the direction of the nearly vibrational system, described second in the protrusion described first of magnet 50 position of magnet 40 be set to the increasing
Quantity space.Described second when magnet 50 protrudes described first magnet 40 position i.e. thickening part, since the thickening part can
Increase the volume of the second side magnet 50, therefore can be improved the magnetic flux of side magnetic circuit system.
Further, referring to figure 3., second is scraped during up-down vibration in order to avoid the vibrating diaphragm of vibrational system to lead
Magnetic portion 32, second magnetic-conductance portion 32 need to reserve certain gap with vibrating diaphragm, and therefore, the thickness of the thickening part can not be too
Greatly, inventor has found through many experiments, when the thickening part thickness range be 0.1mm to 0.3mm, vibrating diaphragm can not only be avoided
Scrape the second magnetic-conductance portion 32, additionally it is possible to have raising by a relatively large margin to the magnetic flux of magnetic circuit system.
As a preferred method, please continue to refer to Fig. 3, the surface away from the substrate of second side magnet 50 is convex
The surface away from the substrate of the centring magnet 20 is arranged out, and the design of right this patent is without being limited thereto, in other embodiments
In, the thickness of the centring magnet 20 can also be thickeied, so that the table away from the substrate of the centring magnet 20
The surface flush away from the substrate in face and second side magnet 50.
Further, referring to figure 5., it is drawn in order to facilitate the lead 11 of voice coil ontology 10, in one embodiment of the application, two
First magnetic-conductance portion 31 inner wall adjacent to each other is equipped with for the lead 11 overlapped support level 31a.Preferably, institute
The upper surface for stating support level 31a is recessed with the cabling channel being adapted to the lead 11, in this way, the lead of the voice coil ontology 10
11 can draw along the cabling channel of the support level 31a, so as to facilitate voice coil ontology 10 lead 11 electrical connection.
Further, please referring now still to Fig. 5, side magnetic conductive board 30 is formed in order to facilitate processing, so where the second magnetic-conductance portion 32
Plane be higher than the plane where first magnetic-conductance portion 31, in one embodiment of the application, first magnetic-conductance portion 31 and described
Interconnecting piece 33 is equipped between second magnetic-conductance portion 32, the area in the section of the interconnecting piece 33 is less than first magnetic-conductance portion 31 and institute
State the area in the section of the second magnetic-conductance portion 32.Since the area in the section of interconnecting piece 33 is smaller, the flexibility of interconnecting piece 33 is more
Height, so as to facilitate first connecting portion 33 to realize bending with respect to second connecting portion 33, so that second connecting portion 33 is higher than described
First connecting portion 33.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of acoustical generator characterized by comprising
Vibrational system, including voice coil ontology and the lead being electrically connected with the voice coil ontology, the side that the lead is drawn is to draw
Line portion；
Magnetic circuit system, including centring magnet, set on centring magnet periphery is in magnet and magnet is close when being set to described
The side magnetic conductive board of the vibrational system side, the side magnetic conductive board include the first magnetic-conductance portion and the second magnetic-conductance portion；Described first leads
Magnetic portion corresponds to the leading part setting, and is formed between the leading part and keep away bit space；It first magnetic-conductance portion and second leads
The one side of magnetic portion and side magnet cooperation is the back side, and the back side of first magnetic-conductance portion is compared at the back side of second magnetic-conductance portion
Closer to the vibrational system, to form the increment space for side magnet installation at the back side of second magnetic-conductance portion.
2. acoustical generator as described in claim 1, which is characterized in that first magnetic-conductance portion and the second magnetic-conductance portion are respectively arranged with
Two, two first magnetic-conductance portions and two second magnetic-conductance portions are enclosed the side magnetic conductive board.
3. acoustical generator as claimed in claim 2, which is characterized in that the magnetic when magnet includes two first in split settings
Iron and two second side magnet, two first side magnet are arranged in a one-to-one correspondence with two first magnetic-conductance portions, two second sides
Magnet is arranged in a one-to-one correspondence with two second magnetic-conductance portions.
4. acoustical generator as claimed in claim 3, which is characterized in that described second when magnet is with described first magnet be in long
Bulk setting, and described second while magnet length be greater than described first while magnet length.
5. acoustical generator as claimed in claim 4, which is characterized in that the conductive magnetic yoke of the magnetic circuit system includes substrate, and described
One side magnet, the second side magnet and the centring magnet are set on the substrate；In the substrate close to the vibrational system
Direction on, described second in magnet protrusion described first, for magnet to form thickening part, the thickening part is set to the increment
Space.
6. the acoustical generator stated such as claim 5, which is characterized in that the thickness range of the thickening part is 0.1mm to 0.3mm.
7. such as acoustical generator described in claim 5 or 6, which is characterized in that the table away from the substrate of second side magnet
The surface away from the substrate that the centring magnet is protruded in face is arranged.
8. the acoustical generator as described in claim 1 to 6 any one, which is characterized in that two first magnetic-conductance portions are adjacent to each other
Inner wall be equipped with for the gage lap support level.
9. acoustical generator as claimed in claim 8, which is characterized in that the upper surface of the support level is recessed with and the lead
The cabling channel of adaptation.
10. the acoustical generator stated such as claim 1 to 6 any one, which is characterized in that first magnetic-conductance portion and described second is led
It is equipped with interconnecting piece between magnetic portion, the area in the section of the interconnecting piece is less than first magnetic-conductance portion and second magnetic-conductance portion
The area in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820627747.3U CN208210287U (en) | 2018-04-27 | 2018-04-27 | Acoustical generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820627747.3U CN208210287U (en) | 2018-04-27 | 2018-04-27 | Acoustical generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208210287U true CN208210287U (en) | 2018-12-07 |
Family
ID=64521339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820627747.3U Active CN208210287U (en) | 2018-04-27 | 2018-04-27 | Acoustical generator |
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| Country | Link |
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| CN (1) | CN208210287U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511061A (en) * | 2018-12-27 | 2019-03-22 | 歌尔股份有限公司 | Mini-sound device and electronic product |
| CN110933564A (en) * | 2019-11-26 | 2020-03-27 | 歌尔股份有限公司 | Magnetic conductive plate for sound production device and sound production device |
| CN111083610A (en) * | 2019-12-13 | 2020-04-28 | 瑞声科技(新加坡)有限公司 | Sound production device |
-
2018
- 2018-04-27 CN CN201820627747.3U patent/CN208210287U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511061A (en) * | 2018-12-27 | 2019-03-22 | 歌尔股份有限公司 | Mini-sound device and electronic product |
| CN109511061B (en) * | 2018-12-27 | 2024-04-05 | 歌尔股份有限公司 | Miniature sound generating device and electronic product |
| CN110933564A (en) * | 2019-11-26 | 2020-03-27 | 歌尔股份有限公司 | Magnetic conductive plate for sound production device and sound production device |
| CN111083610A (en) * | 2019-12-13 | 2020-04-28 | 瑞声科技(新加坡)有限公司 | Sound production device |
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