CN209693049U - Electromagnetic levitation type Microspeaker - Google Patents
Electromagnetic levitation type Microspeaker Download PDFInfo
- Publication number
- CN209693049U CN209693049U CN201920655833.XU CN201920655833U CN209693049U CN 209693049 U CN209693049 U CN 209693049U CN 201920655833 U CN201920655833 U CN 201920655833U CN 209693049 U CN209693049 U CN 209693049U
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- iron core
- coil
- magnet
- lower casing
- sound film
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Abstract
The utility model discloses a kind of electromagnetic levitation type Microspeakers, including upper casing, sound film, magnet, lower casing, coil and iron core, the sound film and magnet are respectively arranged on the upper casing, the iron core and coil are respectively arranged on the lower casing, and the iron core is located in the coil, the magnet is correspondingly arranged with iron core, and gap is equipped between the magnet and iron core, and the upper casing is fixedly connected with lower casing.After coil is passed through alternating current, the iron core in coil generates alternately magnetic force, and the magnet being correspondingly arranged can move up and down, to drive sound film vibration sounding, whole process coil cannot participate in vibration, can substantially reduce broken string risk, and product reliability is good；Only one magnet of entire loudspeaker, components are few, are easily assembled to；Become strong by the magnetic force that the coiling circle number and height that change coil can just be such that iron core generates, to improve acoustics loudness；Sound film can be finally assembled, the difficulty of process protection is reduced, improves product yield.
Description
Technical field
The utility model relates to acoustic equipment technical field more particularly to a kind of electromagnetic levitation type Microspeakers.
Background technique
Microspeaker is generally made of following components at present: sound film, voice coil and magnetic circuit system.Voice coil be powered after
Cutting magnetic line movement is done in magnetic field, then drives sound film vibration sounding, and magnetic circuit system is needed to cooperatively form field circuit.It passes
System Microspeaker has the disadvantage in that 1, assembling is complicated；2, voice coil participates in vibration, and broken string risk is higher；3, acoustics loudness mentions
Height needs to change magnet gap to realize, requires part and production control high；4, in order to meet high acoustical demands, three are needed
Magnetic or five magnetic realize that manufacture is complicated, at high cost.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of electromagnetic levitation type Microspeakers, and voice coil is without ginseng
With vibration, broken string risk can be substantially reduced.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:
A kind of electromagnetic levitation type Microspeaker, including upper casing, sound film, magnet, lower casing, coil and iron core, the sound film and
Magnet is respectively arranged on the upper casing, and the iron core and coil are respectively arranged on the lower casing, and the iron core is located at institute
It states in coil, the magnet is correspondingly arranged with iron core, and gap is equipped between the magnet and iron core, and the upper casing and lower casing are solid
Fixed connection.
Further, the upper casing includes main part and elastic arm, and the elastic arm is fixedly installed in the main part,
The sound film is set on the main part, and the magnet is set on the elastic arm.
Further, the material of the main part is plastics, and the material of the elastic arm is metal.
It further, further include FPC, the FPC is set between the lower casing and coil, and FPC is electrically connected with coil.
Further, it is equipped with the first adhesive layer between the FPC and lower casing, it is viscous that second is equipped between the FPC and coil
Connect layer.
Further, the material of the lower casing is plastics, and the iron core and the lower casing insert injection molding are arranged.
Further, the material of the lower casing be metal, between the iron core and the lower casing be equipped with third adhesive layer or
The iron core and the lower shell rivething are arranged.
The utility model has the beneficial effects that: the iron core in coil generates friendship after coil is passed through alternating current
For magnetic force, the magnet being correspondingly arranged can move up and down, to drive sound film vibration sounding, whole process coil cannot participate in vibration
It is dynamic, broken string risk can be substantially reduced, product reliability is good；Only one magnet of entire loudspeaker, components are few, are easily assembled to；
Become strong by the magnetic force that the coiling circle number and height that change coil can just be such that iron core generates, to improve acoustics loudness；It can be most
Sound film is assembled afterwards, reduces the difficulty of process protection, improves product yield.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the electromagnetic levitation type Microspeaker of the utility model embodiment one；
Fig. 2 is the Structure explosion diagram of the electromagnetic levitation type Microspeaker of the utility model embodiment one；
Fig. 3 is the cross-sectional view in Fig. 1 at A-A.
Label declaration:
1, upper casing；11, main part；12, elastic arm；2, sound film；3, magnet；4, lower casing；5, coil；6, iron core；7,FPC.
Specific embodiment
For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match
Attached drawing is closed to be explained.
The design of the utility model most critical is: sound film and magnet being respectively arranged on upper casing, iron core and coil point
It is not set on lower casing, whole process coil cannot participate in vibration, can substantially reduce broken string risk.
Please refer to Fig. 1 to Fig. 3, a kind of electromagnetic levitation type Microspeaker, including upper casing 1, sound film 2, magnet 3, lower casing 4, line
Circle 5 and iron core 6, the sound film 2 and magnet 3 are respectively arranged on the upper casing 1, and the iron core 6 and coil 5 are respectively arranged at institute
It states on lower casing 4, and the iron core 6 is located in the coil 5, the magnet 3 is correspondingly arranged with iron core 6, and the magnet 3 and iron
Gap is equipped between core 6, the upper casing 1 is fixedly connected with lower casing 4.
As can be seen from the above description, the utility model has the beneficial effects that: being located at coil after coil is passed through alternating current
Interior iron core generates alternately magnetic force, and the magnet being correspondingly arranged can move up and down, so that sound film vibration sounding is driven, in whole process
Coil cannot participate in vibration, can substantially reduce broken string risk, and product reliability is good；Only one magnet of entire loudspeaker, zero
Part is few, is easily assembled to；Become strong by the magnetic force that the coiling circle number and height that change coil can just be such that iron core generates, to improve
Acoustics loudness；Sound film can be finally assembled, the difficulty of process protection is reduced, improves product yield.
Further, the upper casing 1 includes main part 11 and elastic arm 12, and the elastic arm 12 is fixedly installed on the master
In body portion 11, the sound film 2 is set on the main part 11, and the magnet 3 is set on the elastic arm 12.
Seen from the above description, magnet is arranged on elastic arm, magnet and iron core are inhaled before being powered to avoid coil
Together, sound film is avoided to generate permanent deformation.
Further, the material of the main part 11 is plastics, and the material of the elastic arm 12 is metal.
Seen from the above description, the good rigidity of the elastic arm of metal material.
It further, further include FPC7, the FPC7 is set between the lower casing 4 and coil 5, and FPC7 and coil 5
Electrical connection.
Seen from the above description, coil is connected by FPC, can be specifically connected by the way of welding.
Further, it is equipped with the first adhesive layer between the FPC7 and lower casing 4, the is equipped between the FPC7 and coil 5
Two adhesive layers.
Further, the material of the lower casing 4 is plastics, and the iron core 6 is arranged with 4 insert injection molding of lower casing.
Further, the material of the lower casing 4 is metal, and third adhesive layer is equipped between the iron core 6 and the lower casing 4
Or the iron core 6 is arranged with the lower casing 4 riveting.
Seen from the above description, the material of lower casing, which can according to need, is selected, the lower casing of unlike material and iron core it
Between can use different fixed forms.
Please refer to Fig. 1 to Fig. 3, the embodiments of the present invention one are as follows:
A kind of electromagnetic levitation type Microspeaker, including upper casing 1, sound film 2, magnet 3, lower casing 4, coil 5, iron core 6 and FPC7,
The upper casing 1 is fixedly connected with lower casing 4.The sound film 2 and magnet 3 are respectively arranged on the upper casing 1, and the upper casing 1 includes
Main part 11 and elastic arm 12, the elastic arm 12 are fixedly installed in the main part 11, and the sound film 2 is set to the master
In body portion 11, the magnet 3 is set on the elastic arm 12.In the present embodiment, the material of the main part 11 is plastics, institute
The material for stating elastic arm 12 is metal.The iron core 6 and coil 5 are respectively arranged on the lower casing 4, and the iron core 6 is located at
In the coil 5, the magnet 3 is correspondingly arranged with iron core 6, and gap, the FPC7 are equipped between the magnet 3 and iron core 6
It is set between the lower casing 4 and coil 5, and FPC7 is electrically connected with coil 5.It is viscous that first is equipped between the FPC7 and lower casing 4
Layer is connect, the second adhesive layer is equipped between the FPC7 and coil 5.In the present embodiment, the material of the lower casing 4 can for plastics or
Metal, when the material of the lower casing 4 is plastics, the iron core 6 is arranged with 4 insert injection molding of lower casing；Under described
When the material of shell 4 is metal, third adhesive layer or the iron core 6 and the lower casing are equipped between the iron core 6 and the lower casing 4
4 riveting settings.
The assembling process of the electromagnetic levitation type loudspeaker of the present embodiment are as follows: iron core 6, voice coil and FPC7 are first fixed on lower casing 4
On, magnet 3 is fixed on upper casing 1, is then fitted together upper casing 1 and lower casing 4, finally assembles the sound film 2 being easy to damage.
The working principle of the electromagnetic levitation type loudspeaker of the present embodiment are as follows: after coil 5 is passed through alternating current, be located at coil 5
Interior iron core 6 generates alternately magnetic force, and the magnet 3 being correspondingly arranged can move up and down, to drive 2 vibration sounding of sound film.
In conclusion a kind of electromagnetic levitation type Microspeaker provided by the utility model, structure is simple, is easily assembled to,
And the good reliability of product.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck
Domain is also included in the patent protection scope of the utility model.
Claims (7)
1. a kind of electromagnetic levitation type Microspeaker, which is characterized in that including upper casing, sound film, magnet, lower casing, coil and iron core, institute
It states sound film and magnet is respectively arranged on the upper casing, the iron core and coil are respectively arranged on the lower casing, and the iron
Core is located in the coil, and the magnet is correspondingly arranged with iron core, and gap, the upper casing are equipped between the magnet and iron core
It is fixedly connected with lower casing.
2. electromagnetic levitation type Microspeaker according to claim 1, which is characterized in that the upper casing includes main part and bullet
Property arm, the elastic arm is fixedly installed in the main part, and the sound film is set on the main part, the magnet setting
In on the elastic arm.
3. electromagnetic levitation type Microspeaker according to claim 2, which is characterized in that the material of the main part is modeling
Material, the material of the elastic arm are metal.
4. electromagnetic levitation type Microspeaker according to claim 1, which is characterized in that it further include FPC, the FPC setting
Between the lower casing and coil, and FPC is electrically connected with coil.
5. electromagnetic levitation type Microspeaker according to claim 4, which is characterized in that be equipped between the FPC and lower casing
First adhesive layer is equipped with the second adhesive layer between the FPC and coil.
6. electromagnetic levitation type Microspeaker according to claim 1, which is characterized in that the material of the lower casing is plastics,
The iron core and the lower casing insert injection molding are arranged.
7. electromagnetic levitation type Microspeaker according to claim 1, which is characterized in that the material of the lower casing is metal,
It is equipped with third adhesive layer or the iron core between the iron core and the lower casing and the lower shell rivething is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655833.XU CN209693049U (en) | 2019-05-09 | 2019-05-09 | Electromagnetic levitation type Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655833.XU CN209693049U (en) | 2019-05-09 | 2019-05-09 | Electromagnetic levitation type Microspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209693049U true CN209693049U (en) | 2019-11-26 |
Family
ID=68608637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920655833.XU Active CN209693049U (en) | 2019-05-09 | 2019-05-09 | Electromagnetic levitation type Microspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209693049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110035365A (en) * | 2019-05-09 | 2019-07-19 | 深圳市信维声学科技有限公司 | Electromagnetic levitation type Microspeaker |
| WO2021128004A1 (en) * | 2019-12-24 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2019
- 2019-05-09 CN CN201920655833.XU patent/CN209693049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110035365A (en) * | 2019-05-09 | 2019-07-19 | 深圳市信维声学科技有限公司 | Electromagnetic levitation type Microspeaker |
| WO2021128004A1 (en) * | 2019-12-24 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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