CN206237603U - A kind of Microspeaker - Google Patents
A kind of Microspeaker Download PDFInfo
- Publication number
- CN206237603U CN206237603U CN201621380599.7U CN201621380599U CN206237603U CN 206237603 U CN206237603 U CN 206237603U CN 201621380599 U CN201621380599 U CN 201621380599U CN 206237603 U CN206237603 U CN 206237603U
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- CN
- China
- Prior art keywords
- magnetic
- circuit component
- magnetic circuit
- magnet
- voice coil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a kind of Microspeaker, including magnetic circuit component and vibration component, vibration component includes vibrating diaphragm and the voice coil loudspeaker voice coil being connected with the vibrating diaphragm；Magnetic circuit component includes the first magnetic circuit component for forming the first magnetic loop, and the first magnetic circuit component has magnetic gap, and voice coil loudspeaker voice coil is suspended in the magnetic gap；Magnetic circuit component also includes second magnetic circuit component for form second magnetic loop of the abutting joint above the first magnetic circuit component, second magnetic circuit component shares the magnetic gap of the first magnetic circuit component, and the magnetic line of force of the second magnetic circuit component is superimposed in magnetic gap with the magnetic line of force of the first magnetic circuit component.The utility model magnetic circuit component directly constitutes the external frame for accommodating and fixing vibration component, and Microspeaker provided by the utility model has two magnetic loops, using two designs of magnetic loop so that the magnetic field intensity in the loudspeaker residing for the Microspeaker voice coil loudspeaker voice coil at magnetic gap is effectively strengthened.
Description
Technical field
The utility model is related to electroacoustic field, more particularly to a kind of Microspeaker.
Background technology
Microspeaker as a kind of device that can convert electrical energy into acoustic energy, be widely used in mobile phone, computer,
In the terminal electronics such as MP3, PAD.In general, the structure of Microspeaker mainly includes magnetic circuit system and vibrational system,
Wherein, magnetic circuit system includes frame, the magnet and washer being fixed in frame；Vibrational system includes vibrating diaphragm and voice coil loudspeaker voice coil.It is micro-
Type loudspeaker pursues small size, high sensitivity, and volume inherently there are implacable contradiction with both sensitivity.Volume
It is smaller to cause magnet size just smaller, thus the magnetic field intensity for providing is smaller, sensitivity is lower.How in relatively small sky
Between under, lifted magnetic circuit magnetic property, realize highest sensitivity behaviour turn into a common problem.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Microspeaker；By to Microspeaker structure
Improve, while existing Microspeaker size is ensured, the sensitivity of Microspeaker can be increased substantially；Simultaneously can also
Enough while existing Microspeaker sensitivity is ensured, the size of Microspeaker is further minimized.
In order to solve the above technical problems, the utility model uses following technical proposals：
A kind of Microspeaker, the loudspeaker includes magnetic circuit component and vibration component, and the vibration component includes vibrating diaphragm
And the voice coil loudspeaker voice coil being connected with the vibrating diaphragm；
The magnetic circuit component includes the first magnetic circuit component for forming the first magnetic loop, and the first magnetic circuit component has
Magnetic gap, the voice coil loudspeaker voice coil is suspended in the magnetic gap；
The magnetic circuit component also includes for forming the second magnetic loop the of abutting joint above the first magnetic circuit component
Two magnetic circuit components, the second magnetic circuit component shares the magnetic gap of the first magnetic circuit component, the magnetic line of force of the second magnetic circuit component
The magnetic line of force with the first magnetic circuit component is superimposed in magnetic gap；
The first magnetic circuit component and the second magnetic circuit component are collectively formed and accommodate and fix the outer of the vibration component
Portion's framework, acoustic aperture is provided with out on the second magnetic circuit component；
The second magnetic circuit component includes：
The second side magnet being fixed on above the first magnetic circuit component；
Magnet when being fixed on the described second the 3 above magnet, the magnetic polarization direction of second side magnet with it is described
The magnetic polarization direction of the 3rd side magnet is identical, the edge of the vibrating diaphragm be fixed on described second when magnet is with the described 3rd magnet
Between；
The upper conductive magnetic yoke being fixed on above the 3rd side magnet, and fixed in the centre position of upper conductive magnetic yoke or integrally set
It is equipped with magnetic-conductance portion；By the setting of magnetic-conductance portion so that upper conductive magnetic yoke can provide more preferable magnetic conduction direction for the second magnetic loop.
Microspeaker provided by the utility model directly instead of tradition and miniature raises one's voice using conductive magnetic yoke and side magnet
The structural member such as shell, protecgulum in device, vibrating diaphragm support, magnet volume and magnetic field intensity is same in the Microspeaker is increased
When, the Microspeaker also has two magnetic loops, using two designs of magnetic loop so that residing for the Microspeaker voice coil loudspeaker voice coil
Loudspeaker in magnetic field intensity at magnetic gap effectively strengthened, while existing Microspeaker size is ensured so that
The BL values of Microspeaker have significantly to be increased, and then the sensitivity of Microspeaker is significantly enhanced；Also simultaneously
The size of Microspeaker can further be minimized while existing Microspeaker sensitivity is ensured.
Further, the first magnetic circuit component includes：
Positioned at the lower conductive magnetic yoke of bottom；
The conducting magnetic column in the centre position of the lower conductive magnetic yoke is fixed on, or is in turn secured in the lower conductive magnetic yoke
Between position centring magnet, center magnetic conductive board；
Be in turn secured to the lower conductive magnetic yoke marginal position first while magnet, while magnetic conductive board；
Magnetic gap is formed between the conducting magnetic column or the center magnetic conductive board and the side magnetic conductive board；
Wherein, the magnetic conductive board top, second side when magnet is fixed on described of second in the second magnetic circuit component
Magnet is in opposite direction with the magnetic polarization of first side magnet；The magnetic-conductance portion and the conducting magnetic column or center magnetic conduction Board position pair
Should.
Further, described second when magnet is with the described 3rd magnet be cyclic structure, both are between the vibrating diaphragm
Form ring packing.
Further, it is described go out acoustic aperture be opened in the middle position of the upper conductive magnetic yoke, and through the magnetic-conductance portion.
Further, it is formed with relief hole in the lower conductive magnetic yoke.
Further, first side magnet is segmental structure, and the gap between adjacent two section of first side magnet is constituted lets out
Pressure passageway.
The beneficial effects of the utility model are as follows：
Compared to existing technologies, Microspeaker provided by the utility model directly constitutes appearance using magnetic circuit component
Receive and fix the external frame of vibration component, eliminate the components such as shell, protecgulum in conventional micro-speaker, and will tradition it is micro-
What is be separately provided in type loudspeaker is changed to using magnet directly for vibration component is provided for vibrating diaphragm provides the metal ring element for supporting
Support, while magnet volume in increasing the Microspeaker and magnetic field intensity, the utility model also passes through the first magnetic circuit group
The design of part and the second magnetic circuit component so that magnetic gap of two magnetic lines of force of magnetic loop of the Microspeaker in accommodating voice coil loudspeaker voice coil
It is superimposed, because the magnetic force that two magnetic loops are provided is much larger than the magnetic force that a magnetic loop is provided, and then the Microspeaker sound
Magnetic field intensity in the residing loudspeaker of circle at magnetic gap is effectively strengthened, and is ensureing the same of existing Microspeaker size
When, the sensitivity of Microspeaker can be increased substantially；The same of existing Microspeaker sensitivity can also ensured simultaneously
When, the size of Microspeaker is further minimized.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows that the utility model provides the structure sectional view of Microspeaker.
Reference therein includes：1st, vibrating diaphragm；2nd, voice coil loudspeaker voice coil；3rd, lower conductive magnetic yoke；31st, centring magnet；32nd, center magnetic conduction
Plate；4th, the first side magnet；5th, side magnetic conductive board；6th, magnetic gap；7th, the second side magnet；8th, upper conductive magnetic yoke；81st, magnetic-conductance portion；82nd, speak
Hole；9th, the 3rd side magnet.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit protection domain of the present utility model with this.
As shown in figure 1, the Microspeaker that the present embodiment is provided, including magnetic circuit component and vibration component, the vibration
Component includes vibrating diaphragm 1 and the voice coil loudspeaker voice coil 2 being connected with the vibrating diaphragm 1；
The magnetic circuit component includes the first magnetic circuit component for forming the first magnetic loop, and abutting joint is in the first magnetic circuit
The second magnetic circuit component for forming the second magnetic loop above component；The first magnetic circuit component and institute described in the utility model
State the second magnetic circuit component and collectively form the external frame for accommodating and fixing the vibration component.
The first magnetic circuit component includes：
Positioned at the lower conductive magnetic yoke 3 with relief hole of bottom；
It is in turn secured to centring magnet 31, the center magnetic conductive board 32 in the centre position of the lower conductive magnetic yoke；
Be in turn secured to the lower conductive magnetic yoke 3 marginal position first while magnet 4, while magnetic conductive board 5；
Magnetic gap 6 is formed between the center magnetic conductive board 32 and the side magnetic conductive board 5.The voice coil loudspeaker voice coil 2 is suspended in the magnetic
In gap 6, it is preferred that voice coil loudspeaker voice coil 2 can be connected to external electric signal source by lead by way of hanging lead, or be printed by flexibility
Brush wiring board is electrically connected with as lead and external electric signal source；
The second magnetic circuit component includes：
Be fixed on the magnet 7 in the second of the top of magnetic conductive board 5, described second when magnet 7 is with described first magnet 4
Magnetic polarization it is in opposite direction；
Be fixed on described second in the 3rd of the top of magnet 7 magnet 9, the magnetic polarization direction of second side magnet 7 with
The magnetic polarization direction of the 3rd side magnet 9 is identical；
The upper conductive magnetic yoke 8 of the top of the 3rd side magnet 9 is fixed on, and is wholely set in the centre position of upper conductive magnetic yoke 8
There is magnetic-conductance portion 81 corresponding with the position of center magnetic conductive board 32, the magnetic-conductance portion 81 sets towards the direction of center magnetic conductive board 32
Put.
The second magnetic circuit component share the first magnetic circuit component magnetic gap 6, the magnetic line of force of the second magnetic circuit component with
The magnetic line of force of the first magnetic circuit component is superimposed in magnetic gap 6.
Further, the second magnetic circuit component is provided with out acoustic aperture 82, and this goes out acoustic aperture 82 and is opened in the upper conductive magnetic yoke 8
Middle position, and through the magnetic-conductance portion 81.The edge of the vibrating diaphragm 1 is fixed on second side magnet 7 and the described 3rd
Between side magnet 9, described second when magnet 7 is with the described 3rd magnet 9 be cyclic structure, both shapes between the vibrating diaphragm 1
Circularize sealing.
The Microspeaker that the utility model embodiment is provided is directly constituted using magnetic circuit component and accommodated and fixed vibration
The external frame of component, eliminates the components such as shell, protecgulum in conventional micro-speaker, and will be single in conventional micro-speaker
Solely set for vibrating diaphragm provides support metal ring element be changed to utilize second at magnet 7 and the 3rd cooperation of magnet 9 it is direct
For vibration component provides support, while magnet volume in increasing the Microspeaker and magnetic field intensity, by the first magnetic circuit
The design of component and the second magnetic circuit component so that the Microspeaker has the first magnetic loop and the second magnetic loop, and then this is micro-
Magnetic field intensity in loudspeaker residing for type loudspeaker voice coil at magnetic gap has obtained effective enhancing, increases substantially miniature raising one's voice
The sensitivity of device.
Embodiment 2：
The present embodiment is that the centre position of the lower conductive magnetic yoke is fixedly installed conducting magnetic column, institute with the difference of embodiment 1
State and form magnetic gap between conducting magnetic column and the side magnetic conductive board；The magnetic-conductance portion being wholely set in the centre position of upper conductive magnetic yoke and institute
Conducting magnetic column position correspondence is stated, and the magnetic-conductance portion is set towards conducting magnetic column direction.
Embodiment 3：
The present embodiment is that first side magnet is segmental structure, adjacent two section of first side magnetic with the difference of embodiment 1
Gap between iron constitutes the pressure release passage of the Microspeaker.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to implementation method of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all of implementation method cannot be exhaustive here,
It is every to belong to the obvious change or change still in of the present utility model that the technical solution of the utility model extends out
The row of protection domain.
Claims (6)
1. a kind of Microspeaker, the loudspeaker includes magnetic circuit component and vibration component, the vibration component include vibrating diaphragm with
And the voice coil loudspeaker voice coil being connected with the vibrating diaphragm；Characterized in that,
The magnetic circuit component includes the first magnetic circuit component for forming the first magnetic loop, between the first magnetic circuit component has magnetic
Gap, the voice coil loudspeaker voice coil is suspended in the magnetic gap；
The magnetic circuit component also includes second magnetic for form second magnetic loop of the abutting joint above the first magnetic circuit component
Road component, the second magnetic circuit component shares the magnetic gap of the first magnetic circuit component, the magnetic line of force of the second magnetic circuit component and institute
The magnetic line of force for stating the first magnetic circuit component is superimposed in magnetic gap；
The first magnetic circuit component and the second magnetic circuit component collectively form the external frame for accommodating and fixing the vibration component
Frame, acoustic aperture is provided with out on the second magnetic circuit component；
The second magnetic circuit component includes：
The second side magnet being fixed on above the first magnetic circuit component；
Magnet when being fixed on the described second the 3 above magnet, the magnetic polarization direction of second side magnet and the described 3rd
The magnetic polarization direction of side magnet is identical, the edge of the vibrating diaphragm be fixed on described second when magnet is with the described 3rd magnet it
Between；
The upper conductive magnetic yoke being fixed on above the 3rd side magnet, and fix or be wholely set in the centre position of upper conductive magnetic yoke
Magnetic-conductance portion.
2. a kind of Microspeaker according to claim 1, it is characterised in that
The first magnetic circuit component includes：
Positioned at the lower conductive magnetic yoke of bottom；
It is fixed on the conducting magnetic column in the centre position of the lower conductive magnetic yoke, or the interposition for being in turn secured to the lower conductive magnetic yoke
Centring magnet, the center magnetic conductive board put；
Be in turn secured to the lower conductive magnetic yoke marginal position first while magnet, while magnetic conductive board；
Magnetic gap is formed between the conducting magnetic column or the center magnetic conductive board and the side magnetic conductive board；
Wherein, the magnetic conductive board top, second side magnet when magnet is fixed on described of second in the second magnetic circuit component
Magnetic polarization with first side magnet is in opposite direction；The magnetic-conductance portion is corresponding with the conducting magnetic column or center magnetic conduction Board position.
3. a kind of Microspeaker according to claim 2, it is characterised in that described second when magnet is with the described 3rd
Magnet is cyclic structure, and both form ring packing between the vibrating diaphragm.
4. a kind of Microspeaker according to claim 1-3 any claims, it is characterised in that it is described go out acoustic aperture open
Located at the middle position of the upper conductive magnetic yoke, and through the magnetic-conductance portion.
5. a kind of Microspeaker according to Claims 2 or 3, it is characterised in that be formed with the lower conductive magnetic yoke
Relief hole.
6. a kind of Microspeaker according to Claims 2 or 3, it is characterised in that first side magnet is tied for segmentation
Structure, the gap between adjacent two section of first side magnet constitutes pressure release passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621380599.7U CN206237603U (en) | 2016-12-15 | 2016-12-15 | A kind of Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621380599.7U CN206237603U (en) | 2016-12-15 | 2016-12-15 | A kind of Microspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206237603U true CN206237603U (en) | 2017-06-09 |
Family
ID=58992024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621380599.7U Expired - Fee Related CN206237603U (en) | 2016-12-15 | 2016-12-15 | A kind of Microspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206237603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021000136A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN113891230A (en) * | 2020-07-02 | 2022-01-04 | 宁波升亚电子有限公司 | Electroacoustic transducer and method for manufacturing same |
-
2016
- 2016-12-15 CN CN201621380599.7U patent/CN206237603U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021000136A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN113891230A (en) * | 2020-07-02 | 2022-01-04 | 宁波升亚电子有限公司 | Electroacoustic transducer and method for manufacturing same |
| CN113891230B (en) * | 2020-07-02 | 2024-05-24 | 宁波升亚电子有限公司 | Electroacoustic conversion device and method for manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20191215 |