CN202949563U - Double-vibrating-diaphragm rare earth loudspeaker - Google Patents
Double-vibrating-diaphragm rare earth loudspeaker Download PDFInfo
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- CN202949563U CN202949563U CN 201220659460 CN201220659460U CN202949563U CN 202949563 U CN202949563 U CN 202949563U CN 201220659460 CN201220659460 CN 201220659460 CN 201220659460 U CN201220659460 U CN 201220659460U CN 202949563 U CN202949563 U CN 202949563U
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- voice coil
- vibrating diaphragm
- diaphragm
- vibrating
- loud speaker
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Abstract
The utility model relates to a soundbox loudspeaker, in particular to a double-vibrating-diaphragm rare earth loudspeaker for converting electro-acoustics so as to make a sound. The double-vibrating-diaphragm rare earth loudspeaker comprises an integrated basin stand, a magnetic conducting bowl, an upper magnetic conducting plate, a main magnet, vibrating diaphragms, a voice coil and a centering piece, wherein the magnetic conducting bowl is accommodated in the integrated basin stand. The magnetic conducting bowl is installed at the bottom of the integrated basin stand, the upper magnetic conducting plate and the main magnet are located in the magnetic conducting bowl, one end of the centering piece is installed on a centering piece platform of the integrated basin stand, the other end of the centering piece is connected with the vertically moving voice coil, the voice coil is located between the upper magnetic conducting plate and the magnetic conducting bowl, the number of the vibrating diaphragms is two, a lower second vibrating diaphragm is connected to the voice coil, the other end of the lower second vibrating diaphragm is connected with the top of the integrated basin stand, and the outer edge of an upper first vibrating diaphragm is connected with the other end of the second vibrating diaphragm. Double vibrating diaphragms are adopted for the loudspeaker, the traditional cone-shaped vibrating diaphragm enables low frequency and intermediate frequency of electro-acoustic conversion to have extremely good frequency characteristics, the newly added metal foil spherical vibrating diaphragm enables a sound reproduction high-frequency part of loudspeaker to be improved extremely well, and resolution is improved.
Description
Technical field
The utility model relates to sound speaker, the double diaphragm rare earth loud speaker that specifically a kind of electroacoustic conversion is sounded.
Background technology
As everyone knows, want to realize the high-quality broadcast of sound equipment, the electroacoustic conversion is a most important ring.How to produce highly sensitive, audio frequency characteristics good, distortion is little, volume is little, lightweight small size loud speaker, is the target that people constantly explore and pursue all the time.Numerous scientific workers constantly utilize modern science and technology and new material, and it is better that development and production go out performance, more the loud speaker of fashion exquisiteness.
In National Defense Industry Press in " the practical loud speaker workshop manual) " published in June, 2006, disclose vibrating diaphragm technology (P4-184) and the double diaphragm technology (P199-200) of loud speaker, disclose the basin frame technology (P403-405) of loud speaker.Miniature loudspeaker with size as loud speaker, the especially palm of these disclosed technology manufacturings is difficult to satisfy the requirement that people pursue small and exquisite fashion and high-quality tonequality, its distortion factor, frequency characteristic, especially high frequency characteristics is undesirable, and manufacturing processing technic is complicated, is difficult for assembling.
The utility model content
The purpose of this utility model is to provide that a kind of distortion factor is little, the frequency characteristic double diaphragm rare earth loud speaker that well especially high frequency characteristics is good.This loud speaker is the full range miniature loudspeaker, can be advantageously applied in multimedia loudspeaker box, apple audio amplifier, home music center, home theater and automobile audio.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises one basin frame and is contained in respectively this one basin frame interior magnetic conductor bowl, upper conduction magnetic board, main magnet, vibrating diaphragm, voice coil loudspeaker voice coil and centering piece, wherein magnetic conductor bowl is arranged on the bottom of one basin frame, and upper conduction magnetic board and main magnet are arranged in magnetic conductor bowl, setting up and down; One end of described centering piece is arranged on centering piece platform on one basin frame, and the other end is connected with the voice coil loudspeaker voice coil that moves up and down, and this voice coil loudspeaker voice coil is between upper conduction magnetic board and magnetic conductor bowl; Described vibrating diaphragm is two of up and down, and an end of the second vibrating diaphragm that wherein is positioned at the below is connected on described voice coil loudspeaker voice coil, and the other end is connected by the top of ring with described one basin frame, and the outer edge of the first vibrating diaphragm above being positioned at is connected with the other end of described the second vibrating diaphragm.
Wherein: described the first vibrating diaphragm is that the spheric structure is made, is to metal forming, and the second vibrating diaphragm is that inverted taper type structure is made, is to paper base material; The outer edge lower surface that described first shakes touches is connected in the upper surface at the second vibrating diaphragm other end edge; The radius of sphericity of described the first vibrating diaphragm is greater than the second vibrating diaphragm other end edge radius; Described the first vibrating diaphragm be positioned at the second vibrating diaphragm directly over, and the first vibrating diaphragm and the second vibrating diaphragm shake the basin concave surface all up; The upper edge of described magnetic conductor bowl exceeds the upper surface of upper conduction magnetic board; The bottom of described one basin frame is connected to the outer surface of magnetic conductor bowl, and one basin frame is at the middle part of magnetic conductor bowl short transverse outward, formation kink; Described centering piece platform is positioned at the medium position of one basin frame short transverse, and is positioned at the top of described kink; The middle part, bottom surface of described one basin frame has through hole; One end of described voice coil loudspeaker voice coil is connected with the other end of centering piece, and the other end of voice coil loudspeaker voice coil is in free end, the magnetic gap between upper conduction magnetic board outer surface and magnetic conductor bowl madial wall.
Advantage of the present utility model and good effect are:
1. loud speaker of the present utility model is double diaphragm, wherein traditional conical diaphragm makes low frequency and the intermediate frequency of the conversion of loud speaker electroacoustic that good frequency characteristic be arranged, and the metal forming ball type vibration membrane that newly adds is well promoted the HFS of loud speaker playback, and parsing power improves.
2. loud speaker two vibrating diaphragms of the present utility model are combined with each other, and whole vibrating diaphragm rigidity and hardness are improved, and can reduce the diaphagras distortion like this.
3. loud speaker of the present utility model is by traditional conical diaphragm of double diaphragm and the metal forming ball type vibration membrane of Xin Jia, and is very thin, very light, is conducive to like this improve the transient response of loud speaker, and playback parsing power improves.
4. on the magnetic conductor bowl of loud speaker of the present utility model, the edge slightly exceeds plane on upper conduction magnetic board, makes magnetic circuit more symmetrical, even, like this will less second harmonic distortion.
5. loud speaker of the present utility model has been cancelled traditional dust cover, and the loud speaker fabrication technology is simplified.
6. loud speaker of the present utility model is integrated the basin frame, and leakage field is reduced.
7. the one basin frame of loud speaker of the present utility model begins to expand outwardly in the middle part of magnetic conductor bowl, forms kink, and can be one time punching molded, is easy to processing, assembling.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the I place enlarged drawing in Fig. 1;
Wherein: 1 is magnetic conductor bowl, and 2 is upper conduction magnetic board, and 3 is main magnet, and 4 is the first vibrating diaphragm, and 5 is the second vibrating diaphragm, and 6 are integrated the basin frame, and 7 is voice coil loudspeaker voice coil, and 8 is kink, and 9 is centering piece, and 10 is through hole, and 11 is ring, and 12 is the centering piece platform.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, loud speaker of the present utility model is 1～4 o'clock full frequency speaker, comprise one basin frame 6 and be contained in respectively this one basin frame 6 interior magnetic conductor bowl 1, upper conduction magnetic board 2, main magnet 3, vibrating diaphragm, voice coil loudspeaker voice coil 7 and centering piece 9, wherein one basin frame 6 is that vibrating diaphragm support and magnet Antimagnetic hood have been made an integral body, like this, just all parts with loud speaker all are wrapped in one basin frame 6.Have through hole 10 at middle part, the bottom surface of one basin frame 6, the diameter of this through hole 10 is 6～10mm, is used for exhaust when magnetic conductor bowl 1 is adhered to one basin frame 6.
Magnetic conductor bowl 1 is arranged on the bottom of one basin frame 6, and namely the outer surface of the bottom of one basin frame 6 and magnetic conductor bowl 1 is close together; One basin frame 6 forms kink 8 at the corresponding position outward in the middle part of magnetic conductor bowl 1 short transverse; Medium position in one basin frame 6 short transverses is provided with centering piece platform 12, and is positioned at the top of described kink 8, is used for being adhesively fixed centering piece 9.
Upper conduction magnetic board 2 and main magnet 3 are arranged in magnetic conductor bowl 1, setting up and down, and main magnet 3 is placed on the bottom surface of magnetic conductor bowl 1, and upper conduction magnetic board 2 is placed on main magnet 3, and main magnet 3 is rare-earth permanent magnet.Upper conduction magnetic board 2 and main magnet 3 are disc-shaped structure, and the diameter of upper conduction magnetic board 2 is greater than the diameter of main magnet 3; The diameter of upper conduction magnetic board 2 is that 12～27mm, thickness are 1.5～3mm, and the diameter of main magnet 3 is that 11.8～26.8mm, thickness are 2.5-5.5mm, and the upper edge of magnetic conductor bowl 1 exceeds the upper plane 0.3～1.0mm of upper conduction magnetic board 2.
Between the outer surface of the madial wall of magnetic conductor bowl 1 and upper conduction magnetic board 2, form circular magnetic gap; One end of centering piece 9 is bonded on centering piece platform 12 on one basin frame 6, and the other end is connected with an end of the voice coil loudspeaker voice coil 7 that moves up and down, and the other end of voice coil loudspeaker voice coil 7 is free end, the central authorities of magnetic gap between upper conduction magnetic board 2 outer surfaces and magnetic conductor bowl 1 madial wall; Voice coil loudspeaker voice coil 7 must not touch with magnetic conductor bowl 1 and upper conduction magnetic board 2, the coiling width of voice coil loudspeaker voice coil 7 is 1.1～1.3 with the ratio of upper conduction magnetic board 2 thickness, like this, and the maximum vibration displacement of voice coil loudspeaker voice coil 7, the width that is voice coil loudspeaker voice coil 7 deducts magnetic conductive board 2 thickness differences divided by 2, and this value is 0.2mm～0.9mm.Centering piece 9 is used for guaranteeing that voice coil loudspeaker voice coil 7 can only move up and down at magnetic gap, and can not swing.Vibrating diaphragm of the present utility model is two of up and down, and the second vibrating diaphragm 5 use paper base materials that wherein are positioned at the below are made, and are inverted taper type structure, and the first vibrating diaphragm 4 use metal formings that are positioned at the top are made, and are the spheric structure.One end of voice coil loudspeaker voice coil 7 is connecting an end of the second vibrating diaphragm 5 of taper, and the other end of the second vibrating diaphragm 5 of taper is connected with an end of ring 11, and the other end of ring 11 is fixed on the top of one basin frame 6.The first vibrating diaphragm 4 of spheric be positioned at taper the second vibrating diaphragm 5 directly over, and these two vibrating diaphragms shake the basin concave surface all up; The outer edge lower surface of the first vibrating diaphragm 4 of spheric is connected in the upper surface at the second vibrating diaphragm 5 other ends (outer end) edge, and the radius of sphericity of the first vibrating diaphragm 4 is greater than the second vibrating diaphragm 5 other ends (outer end) edges radius.
Embodiment one
As shown in Figure 1, the present embodiment is 2 o'clock full frequency speaker, and the steel plate manufacturing that magnetic conductor bowl 1 is can be with the magnetic conductivity of 2～6mm good adopts the method for mechanical stamping moulding to make, and upper conduction magnetic board 2 is also with the soft iron punch forming of 2 good～3mm of magnetic conductivity.The present embodiment magnetic conductor bowl 1 use 2.5mm steel plate is made, and upper conduction magnetic board 2 use 2mm steel plates are made, and diameter is 15.8mm; It should be noted that bowl limit height that will make magnetic conductor bowl 1 exceeds the upper plane of upper conduction magnetic board 2, bowl limit height of the present embodiment magnetic conductor bowl 1 exceeds plane 0.7mm on upper conduction magnetic board 2.Main magnet 3 use rare earth permanent-magnetic materials are made disc, and the present embodiment master magnet 3 is used the neodymium iron boron manufacturing, and diameter is 15.5mm, thick 3mm.Be adhesively fixed with loud speaker between magnetic conductor bowl 1 and main magnet 3 and between upper conduction magnetic board 2 and main magnet 3 and magnetize afterwards together, then one basin frame 6 and magnetic conductor bowl 1 are sticked with glue and be connected together.Voice coil loudspeaker voice coil 7 is placed in the middle of magnetic conductor bowl 1 and upper conduction magnetic board 2 magnetic gaps, and voice coil loudspeaker voice coil 7 can not touch with magnetic conductor bowl 1 madial wall and upper conduction magnetic board 2; The present embodiment voice coil loudspeaker voice coil 7 copper-in-aluminum enameled wire coiling, the coiling width is 3mm, like this, than being 1.5, i.e. voice coil loudspeaker voice coil maximum displacement is 0.5mm to the width of voice coil loudspeaker voice coil 7 with upper conduction magnetic board 2.Voice coil loudspeaker voice coil 7 coiling width expose the top of upper conduction magnetic board 2 and following width is substantially equal, namely are 0.5mm.One end of the second vibrating diaphragm 5 of voice coil loudspeaker voice coil 7 upper ends and taper sticks with glue solid, the other end of the second vibrating diaphragm 5 of taper and an end of ring 11 stick with glue solid, the other end of ring 11 sticks with glue solid on one basin frame 6, ring 11 is general ring, available rubber, oil immersion cloth or foamed plastics manufacturing, the present embodiment rubber ring.The second vibrating diaphragm 5 of taper can be made with general paper vibrating diaphragm manufacture method, and the present embodiment is the cone made from universal method, and diameter is 45mm.The first vibrating diaphragm 4 use metal formings of spheric are made, paper tinsel thickness is 0.03～0.1mm, the present embodiment adopts the mechanical stamping method to make spherical shape with the thick aluminium foil of 0.05mm, then, the outer edge lower surface of the first vibrating diaphragm 4 of the spheric for preparing is sticked with glue on the other end (outer end) upper surface of solid the second vibrating diaphragm 5 in taper.Centering piece 9 can be with corrugated centering piece commonly used, and one end and voice coil loudspeaker voice coil 7 cement in together, and the other end cements in one on the centering piece platform 12 of basin frame 6; One basin frame 6 can be with 0.4～0.7mm sheet iron punch forming, and the present embodiment is made with 0.5mm iron plate.Centering piece 9 can be by the phenolic resins manufacturing.
Embodiment two
The one basin frame plastic production of the present embodiment, the specifically plastics manufacturing such as available ABS resin; First by designing and producing mould, then use the method one-shot forming of injection mo(u)lding, other is all identical with embodiment one.
Operation principle of the present utility model is:
Loud speaker of the present utility model is the dynamic speaker of electroacoustic conversion, and wherein one basin frame 6 forms the support of whole all parts of loud speaker with fixing.After audio-frequency electric power put on this loud speaker, voice coil loudspeaker voice coil 7 produced electric power in the magnetic field of magnetic conductor bowl 1 and upper conduction magnetic board 2 formation, and voice coil loudspeaker voice coil 7 moves up and down; The voice coil loudspeaker voice coil 7 of this motion drives the first vibrating diaphragm 4 vibrations of the second vibrating diaphragm 5 and the spheric of tapers, and due to the fixation of centering piece 9 and ring 11, it can only up-down vibration; The vibrating diaphragm of these two vibrations has vibrated air, produces sound, is radiated the space, has so just completed the electroacoustic conversion.
Owing to having adopted the rare earth permanent magnet magnet, its magnetic energy product improves more than 10 times than common ferrite, thereby can just can reach with the magnet material of seldom measuring the magnetic field requirement of loud speaker.Owing to having adopted double diaphragm, namely increased again the first vibrating diaphragm 4 of spheric except the second vibrating diaphragm 5 of general traditional taper, like this, the second vibrating diaphragm 5 of taper is still realized the sounding of common loud speaker, and the first vibrating diaphragm 4 use metal formings of spheric are made.As everyone knows, the high frequency sounding effect of metal forming vibrating diaphragm is very good, obtains fine improvement with regard to the frequency characteristic that makes this loud speaker like this, has realized that frequency characteristic well extends to high frequency; Because the double diaphragm cementation is combined with each other, the vibrating diaphragm integral rigidity is increased again, hardness improves, and can reduce the diaphagras distortion like this; Due to the second vibrating diaphragm 5 of taper and metal forming spheric the first vibrating diaphragm 4 of Xin Jia, very thin very light again, so just be conducive to improve the transient response of loud speaker, improve the parsing power of sound; Because edge on magnetic conductor bowl 1 exceeds plane on upper conduction magnetic board 2, make magnetic field more even, more symmetrical, will reduce second harmonic distortion like this.One basin frame 6 of the present utility model has increased again one deck magnetic screen in magnetic conductor bowl 1 outside, makes leakage field still less; Simultaneously, cancel the one time punching molded of the kink of traditional dust cover and basin frame and basin frame, made the loud speaker simplified manufacturing process, thereby be easy to processing, assembling.Loud speaker of the present utility model makes the frequency characteristic of compact full loud speaker () good at 1～4 o'clock by above innovation, realizes the extension to high frequency, and the distortion factor reduces, and transient response is good, and the diaphagras distortion is little.With the preposition audio amplifier of sound equipment that such loud speaker is made, surround speaker, desktop speaker, center-channel speaker and vehicle speaker can satisfy people well to the pursuit of good sound, and reach the effect of fashion exquisiteness.
Loud speaker frequency characteristic of the present utility model is good, extends well to high frequency, and the diaphagras distortion is little, and second harmonic distortion is little, and transient response is good, and leakage field is little, and processes is simple, easily assembling, and cost is low.Allow expensive rare earth resources benefit Chinese ordinary citizen family.
Claims (10)
1. double diaphragm rare earth loud speaker, it is characterized in that: comprise one basin frame (6) and be contained in respectively this one basin frame (6) interior magnetic conductor bowl (1), upper conduction magnetic board (2), main magnet (3), vibrating diaphragm, voice coil loudspeaker voice coil (7) and centering piece (9), wherein magnetic conductor bowl (1) is arranged on the bottom of one basin frame (6), and upper conduction magnetic board (2) and main magnet (3) are arranged in magnetic conductor bowl (1), setting up and down; One end of described centering piece (9) is arranged on centering piece platform (12) on one basin frame (6), and the other end is connected with the voice coil loudspeaker voice coil (7) that moves up and down, and this voice coil loudspeaker voice coil (7) is positioned between upper conduction magnetic board (2) and magnetic conductor bowl (1); Described vibrating diaphragm is two of up and down, an end that wherein is positioned at second vibrating diaphragm (5) of below is connected on described voice coil loudspeaker voice coil (7), the other end is connected with the top of described one basin frame (6) by ring (11), and the outer edge that is positioned at first vibrating diaphragm (4) of top is connected with the other end of described the second vibrating diaphragm (5).
2. by double diaphragm rare earth loud speaker claimed in claim 1, it is characterized in that: the spheric structure is made, is to described the first vibrating diaphragm (4) for metal forming, and inverted taper type structure is made, is to the second vibrating diaphragm (5) for paper base material.
3. by double diaphragm rare earth loud speaker claimed in claim 2, it is characterized in that: the outer edge lower surface that described first shakes touches (4) is connected in the upper surface at the second vibrating diaphragm (5) other end edge.
4. by double diaphragm rare earth loud speaker claimed in claim 2, it is characterized in that: the radius of sphericity of described the first vibrating diaphragm (4) is greater than the second vibrating diaphragm (5) other end edge radius.
5. by double diaphragm rare earth loud speaker claimed in claim 2, it is characterized in that: described the first vibrating diaphragm (4) be positioned at the second vibrating diaphragm (5) directly over, and the first vibrating diaphragm (4) and the second vibrating diaphragm (5) shake the basin concave surface all up.
6. by double diaphragm rare earth loud speaker claimed in claim 1, it is characterized in that: the upper edge of described magnetic conductor bowl (1) exceeds the upper surface of upper conduction magnetic board (2).
7. by double diaphragm rare earth loud speaker claimed in claim 1, it is characterized in that: the bottom of described one basin frame (6) is connected to the outer surface of magnetic conductor bowl (1), and one basin frame (6) is at middle part outward, the formation kink (8) of magnetic conductor bowl (1) short transverse.
8. by double diaphragm rare earth loud speaker claimed in claim 7, it is characterized in that: described centering piece platform (12) is positioned at the medium position of one basin frame (6) short transverse, and is positioned at the top of described kink (8).
9. by the described double diaphragm rare earth of claim 1 or 7 loud speaker, it is characterized in that: the middle part, bottom surface of described one basin frame (6) has through hole (10).
10. by double diaphragm rare earth loud speaker claimed in claim 1, it is characterized in that: an end of described voice coil loudspeaker voice coil (7) is connected with the other end of centering piece (9), and the other end of voice coil loudspeaker voice coil (7) is free end, be arranged in the magnetic gap between upper conduction magnetic board (2) outer surface and magnetic conductor bowl (1) madial wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659460 CN202949563U (en) | 2012-11-30 | 2012-11-30 | Double-vibrating-diaphragm rare earth loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659460 CN202949563U (en) | 2012-11-30 | 2012-11-30 | Double-vibrating-diaphragm rare earth loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949563U true CN202949563U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220659460 Expired - Lifetime CN202949563U (en) | 2012-11-30 | 2012-11-30 | Double-vibrating-diaphragm rare earth loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202949563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581560A (en) * | 2013-10-25 | 2015-04-29 | 迪芬尼香港有限公司 | Low profile loudspeaker transducer |
| CN113676822A (en) * | 2021-08-25 | 2021-11-19 | 深圳市火乐科技发展有限公司 | Speaker device, projection apparatus, and method of adjusting sound pressure of speaker device |
-
2012
- 2012-11-30 CN CN 201220659460 patent/CN202949563U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581560A (en) * | 2013-10-25 | 2015-04-29 | 迪芬尼香港有限公司 | Low profile loudspeaker transducer |
| CN113676822A (en) * | 2021-08-25 | 2021-11-19 | 深圳市火乐科技发展有限公司 | Speaker device, projection apparatus, and method of adjusting sound pressure of speaker device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN NIUSI ACOUSTIC SYSTEM CO., LTD. Free format text: FORMER OWNER: ZHENG QUANLU Effective date: 20141021 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110179 SHENYANG, LIAONING PROVINCE TO: 518132 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141021 Address after: 518132 Guangdong province Shenzhen Guangming New District Gongming street community Tianliao Juhui mould Industrial Park 4 Building 5 floor A District Patentee after: SHEN ZHEN NEUSOUND Co.,Ltd. Address before: Hunnan rookie street Shenyang city Liaoning province 110179 Neusoft Software Park Building 2 A4 Patentee before: Zheng Quanlu |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
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| CX01 | Expiry of patent term |