CN202026454U - Round double-magnetic circuit speaker - Google Patents
Round double-magnetic circuit speaker Download PDFInfo
- Publication number
- CN202026454U CN202026454U CN2011200176072U CN201120017607U CN202026454U CN 202026454 U CN202026454 U CN 202026454U CN 2011200176072 U CN2011200176072 U CN 2011200176072U CN 201120017607 U CN201120017607 U CN 201120017607U CN 202026454 U CN202026454 U CN 202026454U
- Authority
- CN
- China
- Prior art keywords
- magnet
- basin
- round
- bracket
- voice coil
- Prior art date
- 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
A round double-magnetic circuit speaker comprises a bracket, an annular magnet, a round magnet, a voice coil and an oscillating membrane, wherein the bracket is in the shape of a hollow round basin, the oscillating membrane is arranged at the basin mouth end of the bracket, and the round magnet is arranged at the hollow position of the bottom of the basin; a plurality of tone tuning holes matched with the oscillating membrane are arranged on the basin wall of the bracket, and a PCB (printed circuit board) is arranged at the basin bottom side of the bracket; one side of the round magnet, facing the basin mouth of the bracket, is provided with an upper conduction support chip; and the annular magnet is sheathed outside the round magnet, one side of the annular magnet is connected with the bottom end of the bracket, and the other side of the annular magnet and the round magnet are simultaneously connected with a lower conduction support chip. The round double-magnetic circuit speaker has a simple structure and reasonable design; and by adopting the double-magnetic circuit design, not only can the sensitivity of the speaker be improved, but also the magnet use amount can be greatly reduced. Under the condition of not changing transmission power, the speaker is miniaturized, thinned and lightened; and due to the characteristic, the speaker can provide the possibility of being light for sounds used by various electric appliances, household apparatuses and automobiles.
Description
Technical field
The utility model relates to a kind of loud speaker, especially a kind of circular twin magnetic circuit speaker.
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Background technology
Loud speaker is a device the weakest in stereo set, and for acoustics, it is again most important parts.The operation principle of loud speaker is, the audio frequency electric energy is by electromagnetism, and piezoelectricity or electrostatic effect make its vibrating diaphragm sheet vibration and produce resonance (sympathetic response) with ambient air and sound.Loud speaker has that electroacoustic performance is good, sound construction, low cost and other advantages, is widely used.
The quality of loud speaker and the relation of structure and material are very big, especially the structure of loud speaker plays crucial effects, develop rapidly along with the audiovisual industry, people constantly improve the requirement of tone color, existing technology all has limitation in low frequency, tone color and loudness, especially be difficult in and be made in the little space that low frequency is strong, distortion is little, can not satisfy people's demand.
Existing speaker volume enhancing mode is the interior electromagnet of placing more volume of the loud speaker under equally having, in order to strengthen the vibration of diaphragm, to satisfy the requirement of tone color and loudness, but this mode has very big shortcoming, be the very little and production cost height that the volume of loud speaker can't be made, can not satisfy the requirement of loud speaker miniaturization, slimming.
The utility model content
The purpose of this utility model is the deficiency that overcomes existing technical ability, provides that a kind of volume is little, good tone color, circular twin magnetic circuit speaker that loudness is high.
The utility model with the technical scheme that adopts is: a kind of circular twin magnetic circuit speaker, to form by support, annular magnet, circular magnet, voice coil loudspeaker voice coil, vibrating diaphragm, and support is that open circles peviform, its basin mouth end are equipped with vibrating diaphragm, hollow position is equipped with circular magnet at the bottom of the basin; The support tub wall is provided with the sound regulating hole that a plurality of and described vibrating diaphragm matches, and support basin bottom side is provided with pcb board; Described circular magnet is provided with magnetic conduction towards support basin mouth one side and props up sheet; Annular magnet is placed in outside the described circular magnet, and a side is connected with the bottom of described support, and opposite side props up sheet with following magnetic conduction simultaneously with circular magnet and is connected; On the described vibrating diaphragm voice coil loudspeaker voice coil is installed; Being extended with connecting line on the described voice coil loudspeaker voice coil is connected with described pcb board; Described pcb board links to each other with outer connecting line.
Operation principle of the present utility model is: when the voice coil loudspeaker voice coil in the magnetic field that is in double magnetic circuit has tone currents to pass through, just produce the magnetic field that changes with tone currents, the magnetic field of this magnetic field and permanent magnet interacts, and makes voice coil loudspeaker voice coil along axial vibration, reaches the purpose of pronunciation.
The utility model is simple in structure, and is reasonable in design, and the double magnetic circuit design of employing not only can make the sensitivity of loud speaker improve, and the magnet consumption is significantly reduced.Under the constant situation of the power of propagating, make loud speaker do miniaturization, slimming, lightness.Because these characteristics provide light and handy possibility for various electric equipments, household electrical appliance, automobile with sound equipment.
Description of drawings
Accompanying drawing 1 is the front view of the utility model structure, also is that summary is with scheming;
Accompanying drawing 2 is right views of the utility model structure;
Accompanying drawing 3 is rearviews of this practical structure.
Each label is respectively among the figure: (1) support; (2) circular magnet; (3) annular magnet; (4) vibrating diaphragm; (5) voice coil loudspeaker voice coil; (6) go up magnetic conduction and prop up sheet; (7) magnetic conduction props up sheet down; (8) (9) outer connecting line; (10) (11) (12) sound regulating hole; (13(14) pcb board.
Embodiment
Now in conjunction with the accompanying drawings, the utility model is made further instruction.
Embodiment:
A kind of circular twin magnetic circuit speaker forms 4 by support 1, annular magnet 3, circular magnet 2, voice coil loudspeaker voice coil 5, vibrating diaphragm, and support 1 is equipped with vibrating diaphragm 4 for open circles peviform, its basin mouth end, and hollow position is equipped with circular magnet 2 at the bottom of the basin; Support 1 tub wall is provided with the sound regulating hole 10,11,12 that a plurality of and described vibrating diaphragm 4 matches, and support 1 basin bottom side is provided with pcb board 13,14; Described circular magnet 2 is provided with magnetic conduction towards support 1 basin mouth one side and props up sheet 6; Annular magnet cover 3 is outside described circular magnet 2, and a side is connected with the bottom of described support 1, and opposite side props up sheet 7 with 2 whiles of circular magnet with following magnetic conduction and is connected; On the described vibrating diaphragm 4 voice coil loudspeaker voice coil 5 is installed; Being extended with connecting line on the described voice coil loudspeaker voice coil 5 is connected with described pcb board 13,14; Described pcb board 13,14 links to each other with outer connecting line 8,9.
Claims (1)
1. a circular twin magnetic circuit speaker is made up of support, annular magnet, circular magnet, voice coil loudspeaker voice coil, vibrating diaphragm, it is characterized in that: support is that open circles peviform, its basin mouth end are equipped with vibrating diaphragm, and hollow position is equipped with circular magnet at the bottom of the basin; The support tub wall is provided with the sound regulating hole that a plurality of and described vibrating diaphragm matches, and support basin bottom side is provided with pcb board; Described circular magnet is provided with magnetic conduction towards support basin mouth one side and props up sheet; Annular magnet is placed in outside the described circular magnet, and a side is connected with the bottom of described support, and opposite side props up sheet with following magnetic conduction simultaneously with circular magnet and is connected; On the described vibrating diaphragm voice coil loudspeaker voice coil is installed; Being extended with connecting line on the described voice coil loudspeaker voice coil is connected with described pcb board; Described pcb board links to each other with outer connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200176072U CN202026454U (en) | 2011-01-20 | 2011-01-20 | Round double-magnetic circuit speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200176072U CN202026454U (en) | 2011-01-20 | 2011-01-20 | Round double-magnetic circuit speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026454U true CN202026454U (en) | 2011-11-02 |
Family
ID=44851387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200176072U Expired - Fee Related CN202026454U (en) | 2011-01-20 | 2011-01-20 | Round double-magnetic circuit speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202026454U (en) |
-
2011
- 2011-01-20 CN CN2011200176072U patent/CN202026454U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20111102 Termination date: 20130120 |