CN203912186U - Single-diaphragm double-magnetic-circuit loudspeaker - Google Patents
Single-diaphragm double-magnetic-circuit loudspeaker Download PDFInfo
- Publication number
- CN203912186U CN203912186U CN201420336366.1U CN201420336366U CN203912186U CN 203912186 U CN203912186 U CN 203912186U CN 201420336366 U CN201420336366 U CN 201420336366U CN 203912186 U CN203912186 U CN 203912186U
- Authority
- CN
- China
- Prior art keywords
- voice coil
- vibrating diaphragm
- diaphragm
- coil loudspeaker
- basin frame
- 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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Abstract
The utility model aims to provide a single-diaphragm double-magnetic-circuit loudspeaker in order to improve the power rating and the sensitivity of a loudspeaker. The single-diaphragm double-magnetic-circuit loudspeaker comprises a basket, a diaphragm, voice coils and magnetic assemblies composed of magnets, washers and U type irons. The periphery of the diaphragm is fixed with the basket. There are two voice coils and two magnetic assemblies. The basket is symmetrically provided with two hollowed frames. The two magnetic assemblies are respectively fixed on the two hollowed frames. The two voice coils are symmetrically bonded on the two sides of the diaphragm bottom. The two voice coils are connected in a parallel way. The above-mentioned loudspeaker uses two voice coils connected in a parallel way to drive the diaphragm. The power can be increased by times. The sensitivity can be effectively enhanced. The two magnetic assemblies are independently fixed inside different basket hollowed frames. Therefore, resonance problems can be prevented during a working process. Good sound qualities can be guaranteed.
Description
Technical field
The utility model belongs to electroacoustic techniques field, specially refers to the structure of loud speaker.
Background technology
The principle of loud speaker is as follows: according to Fu Laiming Left Hand Rule, after the energising of the wire of voice coil loudspeaker voice coil, be subject to power and produce motion in magnetic field, voice coil loudspeaker voice coil drives vibrating diaphragm reciprocating, promotes air, to surrounding radiative acoustic wave.Existing loud speaker, particularly Microspeaker, its structure is all that single vibrating diaphragm coordinates single magnetic circuit, and it bears power and is restricted, and sensitivity is also restricted.
Utility model content
The purpose of this utility model is to propose a kind of loud speaker of single vibrating diaphragm double magnetic circuit, bears power and sensitivity with what improve loud speaker.
The loud speaker of single vibrating diaphragm double magnetic circuit of the present utility model comprises basin frame, vibrating diaphragm, voice coil loudspeaker voice coil and the magnet assembly being made up of magnet, washer, U-shaped iron, and key is that the periphery of described vibrating diaphragm and basin frame fix; Described voice coil loudspeaker voice coil and magnet assembly all have two, and described basin frame is symmetrically arranged with two hollow out frames, and described two magnet assemblies are individually fixed in two hollow out frame places; Described two voice coil loudspeaker voice coil symmetries are pasted on the two bottom sides of vibrating diaphragm, and two voice coil loudspeaker voice coils are connected in parallel.
Above-mentioned loud speaker utilizes two voice coil loudspeaker voice coils in parallel to promote a vibrating diaphragm, the power that can be multiplied, and effectively improve sensitivity, because two magnet assemblies are independently fixed in different basin frame hollow out frames, therefore there will not be in the course of the work the problems such as resonance, ensure acoustical sound.
Further, described basin frame and vibrating diaphragm are rectangle, and the cross section of described voice coil loudspeaker voice coil is rectangle, and the length-width ratio in described voice coil loudspeaker voice coil cross section is the half of vibrating diaphragm length-width ratio.The fitness of voice coil loudspeaker voice coil and vibrating diaphragm is best like this, and rectangular vibrating diaphragm can effectively promote vibration area, maximally utilises the energy of voice coil loudspeaker voice coil.
Further, two side bottoms of described basin frame and bottom, the junction of two hollow out frames are provided with the connecting portion for fixed magnetic assembly, and described magnet assembly is fixedly connected with basin frame by connecting portion.The mode of this kind of fixed magnetic assembly has advantages of, and independence easy for installation, magnet assembly is strong.
Further, the trunk of described vibrating diaphragm is for foaming flat board, to reduce the not impact on sounding in vibrating diaphragm central authorities of voice coil loudspeaker voice coil.
That the loud speaker of single vibrating diaphragm double magnetic circuit of the present utility model has advantages of is simple in structure, easy to assembly, it is large and highly sensitive to bear power, is deeply subject to the welcome in market.
Brief description of the drawings
Fig. 1 is the structural representation of the loud speaker of single vibrating diaphragm double magnetic circuit of the present utility model.
Fig. 2 is the assembling process schematic diagram of the loud speaker of single vibrating diaphragm double magnetic circuit of the present utility model.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail as effect and the operation principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part.
Embodiment 1:
As shown in Figure 1, the loud speaker of single vibrating diaphragm double magnetic circuit of the present embodiment comprises basin frame 1, vibrating diaphragm 2, voice coil loudspeaker voice coil 3 and the magnet assembly being made up of magnet 5, washer 4, U-shaped iron 6, and the periphery of vibrating diaphragm 2 is compound outstanding limit, and pastes fixing with the periphery of basin frame 1; Described voice coil loudspeaker voice coil 3 and magnet assembly all have two, described basin frame 1 is symmetrically arranged with two hollow out frames, two side bottoms of basin frame 1 and bottom, the junction of two hollow out frames are provided with the connecting portion for fixed magnetic assembly, and two magnet assemblies are pasted and are fixed on two hollow out frame belows by connecting portion respectively; Two voice coil loudspeaker voice coil 3 symmetries are pasted on the two bottom sides of vibrating diaphragm 2, and two voice coil loudspeaker voice coils 3 are connected in parallel.
Basin frame 1 and vibrating diaphragm 2 are rectangle, and the cross section of voice coil loudspeaker voice coil 3 is rectangle, and the length-width ratio in voice coil loudspeaker voice coil 3 cross sections is half of vibrating diaphragm 2 length-width ratios.Voice coil loudspeaker voice coil 3 is best with the fitness of vibrating diaphragm 2 like this, and rectangular vibrating diaphragm 2 can effectively promote vibration area, maximally utilises the energy of voice coil loudspeaker voice coil 3.
The trunk of vibrating diaphragm 2 is for foaming flat board, to reduce the not impact on sounding in vibrating diaphragm 2 central authorities of voice coil loudspeaker voice coil 3.
Above-mentioned loud speaker utilizes two voice coil loudspeaker voice coils in parallel to promote a vibrating diaphragm, the power that can be multiplied, and effectively improve sensitivity, because two magnet assemblies are independently fixed in different basin frame hollow out frames, therefore there will not be in the course of the work the problems such as resonance, ensure acoustical sound.Confirm according to test, long 34mm, the loud speaker of the present embodiment of wide 11mm, height can be low to moderate 4mm, bears power and can reach 2W; Total harmonic distortion can reach F0～20KHz < 5%; Sensitivity can reach 77dB/1w/0.5m.
As shown in Figure 2, the assembling process of above-mentioned loud speaker is as follows:
First utilize UV glue voice coil loudspeaker voice coil 3 symmetries to be pasted on to the down either side of vibrating diaphragm 2, by voice coil leads bending on the R on PU limit ring, voice coil leads is fixed on vibrating diaphragm R ring by flexible damping glue, form vibrating diaphragm+voice coil loudspeaker voice coil assembly, then utilize frock by fixing to the compound outstanding limit of vibrating diaphragm 2 and the 1 periphery stickup of basin frame, form basin frame+vibrating diaphragm+voice coil loudspeaker voice coil assembly, finally two magnet assemblies are arranged on basin frame 1, and terminal block is bonding, make finished product loud speaker.
Claims (4)
1. a loud speaker for single vibrating diaphragm double magnetic circuit, comprises basin frame, vibrating diaphragm, voice coil loudspeaker voice coil and the magnet assembly being made up of magnet, washer, U-shaped iron, it is characterized in that the periphery of described vibrating diaphragm and basin frame fix; Described voice coil loudspeaker voice coil and magnet assembly all have two, and described basin frame is symmetrically arranged with two hollow out frames, and described two magnet assemblies are individually fixed in two hollow out frame places; Described two voice coil loudspeaker voice coil symmetries are pasted on the two bottom sides of vibrating diaphragm, and two voice coil loudspeaker voice coils are connected in parallel.
2. the loud speaker of single vibrating diaphragm double magnetic circuit according to claim 1, is characterized in that described basin frame and vibrating diaphragm are rectangle, and the cross section of described voice coil loudspeaker voice coil is rectangle, and the length-width ratio in described voice coil loudspeaker voice coil cross section is the half of vibrating diaphragm length-width ratio.
3. the loud speaker of single vibrating diaphragm double magnetic circuit according to claim 1 and 2, it is characterized in that two side bottoms of described basin frame and bottom, the junction of two hollow out frames are provided with the connecting portion for fixed magnetic assembly, described magnet assembly is fixedly connected with basin frame by connecting portion.
4. the loud speaker of single vibrating diaphragm double magnetic circuit according to claim 1 and 2, the trunk that it is characterized in that described vibrating diaphragm is foaming flat board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336366.1U CN203912186U (en) | 2014-06-16 | 2014-06-16 | Single-diaphragm double-magnetic-circuit loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336366.1U CN203912186U (en) | 2014-06-16 | 2014-06-16 | Single-diaphragm double-magnetic-circuit loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203912186U true CN203912186U (en) | 2014-10-29 |
Family
ID=51786427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420336366.1U Expired - Fee Related CN203912186U (en) | 2014-06-16 | 2014-06-16 | Single-diaphragm double-magnetic-circuit loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203912186U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341761A (en) * | 2016-12-05 | 2017-01-18 | 陈新得 | Loudspeaker with multipath magnetic circuit structure |
| CN110418250A (en) * | 2019-08-29 | 2019-11-05 | 无锡杰夫电声股份有限公司 | One kind driving some acoustic actuators more |
| CN111698621A (en) * | 2019-03-14 | 2020-09-22 | 歌尔股份有限公司 | Sound production device and electronic product |
-
2014
- 2014-06-16 CN CN201420336366.1U patent/CN203912186U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341761A (en) * | 2016-12-05 | 2017-01-18 | 陈新得 | Loudspeaker with multipath magnetic circuit structure |
| CN111698621A (en) * | 2019-03-14 | 2020-09-22 | 歌尔股份有限公司 | Sound production device and electronic product |
| CN111698621B (en) * | 2019-03-14 | 2023-04-07 | 歌尔股份有限公司 | Sound production device and electronic product |
| CN110418250A (en) * | 2019-08-29 | 2019-11-05 | 无锡杰夫电声股份有限公司 | One kind driving some acoustic actuators more |
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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: 20141029 Termination date: 20170616 |