CN207410507U - Hard sphere top high pitch loud speaker - Google Patents
Hard sphere top high pitch loud speaker Download PDFInfo
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- CN207410507U CN207410507U CN201721245802.4U CN201721245802U CN207410507U CN 207410507 U CN207410507 U CN 207410507U CN 201721245802 U CN201721245802 U CN 201721245802U CN 207410507 U CN207410507 U CN 207410507U
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- vibrating diaphragm
- loud speaker
- high pitch
- convergence part
- hard sphere
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Abstract
The application proposes hard sphere top high pitch loud speaker, includes vibrating diaphragm, outstanding side, voice coil and magnetic circuit.Vibrating diaphragm includes top dome portion.Outstanding side one end is connected to the top dome portion of vibrating diaphragm.Voice coil is located at below vibrating diaphragm.Magnetic circuit is located at below voice coil, and magnetic circuit includes T-shaped yoke, and the center of T-shaped yoke has a through hole, and the surface of position of through hole is to the center of vibrating diaphragm.
Description
Technical field
The application is on loud speaker, the loud speaker of especially hard ball top type.
Background technology
Loud speaker is a kind of electroacoustic transducer, and power frequency can be mainly converted into sound output.And its operation principle
System allows electric current to generate magnetic field by the coil of voice coil, moves voice coil drive and body by the magnetic field of coil and the magnetic fields of magnetic circuit and shakes
Film is vibrated and made a sound.
Loud speaker can be divided into taper, plate shaped, ball top type or horn-type loud speaker etc. according to the shape difference of vibrating diaphragm
Deng.Wherein, ball top type loudspeaker is primarily as medium and high pitch loudspeaker.And according to hard sphere can be divided on its top dome material
Top formula loud speaker and soft ball top type loudspeaker.
The diaphragm materials of soft ball top type loudspeaker can be that thin,tough silk film, natural silk film, rubber membrane and bulletproof cloth film etc. are several.Soft ball
High pitch dexterity, relaxation during the formula loud speaker broadcasting music of top, have nature expressive force well.It is suitble to play classical music, people
Sound is when having the music of standard audition concept.And the diaphragm materials of hard ball top type loudspeaker can be aluminium alloy, titanium alloy, magnesium
Alloy, titanium alloy composite membrane, glass-film, diamond film etc. are several.The high pitch that hard ball top type loudspeaker is played, tone color become clear, and have
There is metal sense.It is suitble to play pop music, cinemusic and effect music.
The effective bandwidth of general hard ball top type loudspeaker falls between 850Hz~15KHz mostly, and after 15KHz
Then easily generate the apparent variation of acoustic pressure numerical value (Sound Pressure Level).That is, general hard ball top type is raised
Sound device still has the situation that effective bandwidth scope is insufficient and SPL curves are not flat enough.
Utility model content
In view of this, the application proposes a kind of hard sphere top high pitch loud speaker.The hard sphere top high pitch loud speaker of the application includes
Vibrating diaphragm, outstanding side, voice coil and magnetic circuit.Vibrating diaphragm includes top dome portion.Outstanding side one end is connected to the top dome portion of vibrating diaphragm.Voice coil is located at vibrating diaphragm
Lower section.Magnetic circuit is located at below voice coil, and magnetic circuit includes T-shaped yoke, and the center of T-shaped yoke has through hole, and the surface of position of through hole is to shaking
The center of film.
In one embodiment, vibrating diaphragm includes the first convergence part and the second convergence part, and the first convergence part is connected with top dome portion, the
Two convergence parts are connected with the first convergence part, and the extending direction of the first convergence part is vertical with the extending direction of the second convergence part, hang
While it is connected to the first convergence part, the second convergence part and top dome portion.
In one embodiment, voice coil includes spool and coil, and spool includes Actuator Division and extension, extension and Actuator Division
Between there is angle, coil is set in Actuator Division, and Actuator Division fits in the first convergence part, and extension fits in top dome portion.
In one embodiment, comprising glued portion, glued portion is located at the spool boundary position of vibrating diaphragm and voice coil.
In one embodiment, glued portion includes outer rim, and outer the second convergence part of cause extends to Actuator Division.
In one embodiment, comprising acoustical cotton, acoustical cotton is located at below magnetic circuit, and the through hole of acoustical cotton covering magnetic circuit.
In one embodiment, comprising back cavity, back cavity is set in acoustical cotton.
In one embodiment, comprising rear cover, rear cover is covered in back cavity and acoustical cotton.
In one embodiment, the through hole of T-shaped yoke has arc edge.
In one embodiment, there is T-shaped yoke vertical portion and support portion, vertical portion to stand on support portion, and the center in vertical portion has
Through hole.
In one embodiment, the vertical portion of T-shaped yoke includes the first body section and the second body section, and the first body section is along vertical supporter
Direction extension, the second body section compared to the first body section be taper.
In conclusion according to the loud speaker of the hard ball top type of the application, high pitch resonant frequency can be effectively reduced, extends high frequency
SPL curves are 600Hz~20KHz so as to fulfill effective bandwidth scope is expanded, while ensure SPL curves in effective bandwidth scope
It is interior flat.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram according to the embodiment of the hard sphere top high pitch loud speaker of the application.
Fig. 2 is the stereochemical structure exploded view according to the embodiment of the hard sphere top high pitch loud speaker of the application.
Fig. 3 is the local structural graph in Fig. 2.
Fig. 4 is the partial sectional view according to the embodiment of the hard sphere top high pitch loud speaker of the application.
Fig. 5 is according to the partial enlarged view at Fig. 4 centre circle choosings.
Specific embodiment
It reads herein for convenience, therefore " on ", " under ", "left", "right" is pointed out according to schema, the purpose is to point out each group
Reference relative position between part rather than to limit the application.
The vertical of an embodiment of the hard sphere top high pitch loud speaker of the application is shown please refer to Fig. 1 and Fig. 2, Fig. 1
Body outside drawing.The stereochemical structure exploded view of one embodiment of the application hard sphere top high pitch loud speaker is shown in Fig. 2.Fig. 1 and Fig. 2 are painted
One embodiment of hard sphere top high pitch loud speaker shown includes vibrating diaphragm 1, outstanding side 2, voice coil 4 and magnetic circuit 5.Vibrating diaphragm 1 includes top dome portion 11.It is outstanding
The one end on side 2 is connected to the top dome portion 11 of vibrating diaphragm 1.Voice coil 4 is located at 1 lower section of vibrating diaphragm.Magnetic circuit 5 is located at 4 lower section of voice coil.Magnetic circuit 5 wraps
Yoke containing T-shaped 51,51 center of T-shaped yoke have through hole 5111, and the surface of position of through hole 5111 is to the center of vibrating diaphragm 1.
After voice coil 4 is powered, electric current generates magnetic field by voice coil 4, and the magnetic field of voice coil 4 is generated with the magnetic fields of magnetic circuit 5
Magnetic induction force can drive voice coil 4 generate shake and penetrate 1 sounding of vibrating diaphragm.And the through hole 5111 of the T-shaped yoke 51 of magnetic circuit 5 increases
The spatial volume of 1 lower section of vibrating diaphragm postpones the time of the sound wave reflection of 1 lower section of vibrating diaphragm, thereby effectively reduces resonant frequency accordingly,
Expand effective bandwidth scope.
Furthermore, it is understood that T-shaped yoke 51 has vertical portion 511 and support portion 512, vertical portion 511 stands on support portion 512, leads to
Hole 5111 is located at the center in vertical portion 511.The vertical portion 511 of T-shaped yoke 51 has arc edge 5112, arc edge close to one end of vibrating diaphragm 1
5112 extend to through hole 5111.The vertical portion 511 of T-shaped yoke 51 includes the first body section 5113 and the second body section 5114, the first body section
5113 extend along the direction of vertical supporter 512, and the second body section 5114 is tilted compared to the first body section 5113 as taper.By vertical
The shape in portion 511 changes the variation of the distance between T-shaped yoke 51 and magnet 52, and then makes magnetic field optimization.
In addition, magnetic circuit 5 also includes magnet 52 and magnetic conductive board 53.Magnet 52 and the respectively circular ring shape of magnetic conductive board 53, magnetic conduction
Plate 53 is set in vertical portion 511 and is posted by magnet 52.Become some in magnetism circuit by T-shaped yoke 51, and can allow magnetic force
Line is able to smoothly flow through T-shaped yoke 51.T-shaped yoke 51 and magnetic conductive board 53 are made with having the material of magnetic conductivity, and magnet 52 is logical
Often it is made of permanent magnet.
Coordinate and refer to Fig. 3 to Fig. 5, in an embodiment, vibrating diaphragm 1 is ball top type vibrating diaphragm.In this, the outer profile of vibrating diaphragm 1 is half
Circle it is dome-shaped, and outer profile surround in the range of have spherical shape top dome portion 11.Vibrating diaphragm 1 further include the first convergence part 12 and
Second convergence part 13.One end of first convergence part 12 is extended downwardly from top dome portion 11, the second convergence part 13 and the first convergence part 12
The other end be connected.And in this embodiment, the extending direction of the extending direction of the first convergence part 12 and the second convergence part 13 is about
To be vertical.The convergence part bending structure of vibrating diaphragm 1 can enhance the bond strength of vibrating diaphragm 1 and outstanding side 2, more promote the rigidity of vibrating diaphragm 1.
Vibrating diaphragm 1 can be made of the hard material of metal, semimetal or plastics etc, for example, can be aluminium alloy, titanium alloy, magnesium alloy,
Titanium alloy composite membrane, glass-film or diamond film etc., but not limited to this.
Refering to Fig. 4 and Fig. 5, the outer profile of outstanding side 2 along vibrating diaphragm 1 is arranged at the outer of 11 edge of top dome portion of vibrating diaphragm 1 for cooperation
Surface 112.Outstanding side 2 includes first end 21, second end 22 and the buffer part 23 between first end 21 and second end 22,
First end 21 and second end 22 are the opposite end on outstanding side 2.The first end 21 on outstanding side 2 and the outer surface 112 in top dome portion 11 are affixed
It closes, and the section of outstanding buffer part 23 between the first end 21 on side 2 and second end 22 is in inverted " u "-shaped.In this embodiment, side is hanged
2 first end 21 can fit in the first convergence part 12, the second convergence part 13 and top dome portion 11 of vibrating diaphragm 1 simultaneously.More specifically,
With continued reference to Fig. 4 and Fig. 5, the first end 21 for hanging side 2 includes the first support segment 211, the second support segment 212 and the 3rd support segment 213.The
One end of one support segment 211 is connected with buffer part 23.Second support segment 212 is located at the other end and the 3rd support segment 213 of the first support segment 211
Between.First support segment 211 on outstanding side 2 fits in the second convergence part 13 of vibrating diaphragm 1, and the second support segment 212 fits in the first of vibrating diaphragm 1
Convergence part 12, the 3rd support segment 213 fit in the part in the top dome portion 11 of vibrating diaphragm 1.It shakes through by the correspondence of first end 21 on outstanding side 2
The shape formable of film 1 so that it is outstanding to be closely bonded between side 2 and vibrating diaphragm 1, and expand simultaneously between outstanding side 2 and vibrating diaphragm 1
Fitting area, improve the combination stability of the joining place on vibrating diaphragm 1 and outstanding side 2 accordingly, and and then improve the rigidity of vibrating diaphragm 1, drop
The Probability of low high frequency trough improves the smoothness of SPL curves.
Further refering to Fig. 2, Fig. 4 and Fig. 5, voice coil 4 includes spool 41 and coil 42, and spool 41 is annulus cylindricality.Line
42 circle of circle is around in one end of the periphery of spool 41, and spool 41 is located at the central lower in the top dome portion 11 of vibrating diaphragm 1, and spool 41 is another
One end is connected with the inner surface 111 of vibrating diaphragm 1.The 51 part of T-shaped yoke of magnetic circuit 5 is penetrated in the spool 41 of voice coil 4, and magnetic circuit 5
There is magnetic circuit clearance G between voice coil 4, the coil 42 of voice coil 4 is located at the center of magnetic circuit clearance G, and voice coil 4 is able in magnetic circuit
It is swimmingly moved in clearance G.
It then continues to refering to Fig. 4 and Fig. 5, in an embodiment, to improve the contact area between vibrating diaphragm 1 and voice coil 4.Sound
Circle 4 spool 41 include Actuator Division 411 and extension 412, Actuator Division 411 be straight cylindrical structure, and extension 412 along
The contour extension of one end of Actuator Division 411.In this, there is angle, and extension 412 is between extension 412 and Actuator Division 411
Arc shaped surface, the radian of extension 412 and the radian of the inner surface 111 in the top dome portion 11 of vibrating diaphragm 1 match.Thereby, voice coil 4 prolongs
Extending portion 412 can closely fit in the inner surface 111 in the top dome portion 11 of vibrating diaphragm 1, and the Actuator Division 411 of voice coil 4 can be close
Fit in the first convergence part 12 of vibrating diaphragm 1.The contact area between vibrating diaphragm 1 and voice coil 4 can be significantly increased in this embodiment, make sound
Circle 4 more positively can drive vibrating diaphragm 1 to move, and improve phonation efficiency and bear power, while the rigid of contact area part obtains
To very big promotion, be conducive to the extension of SPL curve high frequencies.
Further refering to Fig. 5, in an embodiment, the loud speaker of the application includes gluing portion 6.Glued 6 system of portion fills up
In vibrating diaphragm 1 and the intersection of voice coil 4, to bind vibrating diaphragm 1 and voice coil 4.More specifically, the gluing portion 6 of the present embodiment is arranged at
The position of the extension 412 of the inner surface 111 in the top dome portion 11 of vibrating diaphragm 1 and corresponding voice coil 4, the first linking for being arranged at vibrating diaphragm 1
Portion 12 and 41 correspondence position of spool of voice coil 4, and gluing portion 6 is more by the intersection of the first convergence part 12 and the second convergence part 13
It overflows and extends to the second convergence part 13 of vibrating diaphragm 1, and the glue overflowed by the first convergence part 12 and 13 intersection of the second convergence part
6 saturation of conjunction portion forms outer rim 61.Outer rim 61 is arc edge, and outer rim 61 extends to voice coil 4 by the second convergence part 13 of vibrating diaphragm 1
Spool 41 Actuator Division 411.Thereby, glued portion 6 is able to combine closely vibrating diaphragm 1 and voice coil 4, and excessive glued portion 6 more may be used
To ensure the combination stability of vibrating diaphragm 1 and the joining place of voice coil 4, the rigidity of vibrating diaphragm 1 is improved, reduces the generation machine of high frequency trough
Rate improves the smoothness of SPL curves.
Then again please refer to Fig. 2 and Fig. 4, in an embodiment, further to promote the volume of 1 lower section of vibrating diaphragm simultaneously
Standing wave interference is reduced, the loud speaker of the application further includes acoustical cotton 7.Acoustical cotton 7 is arranged at 5 lower section of magnetic circuit.Specifically, sound-absorbing
Cotton 7 is located at 51 lower section of T-shaped yoke of magnetic circuit 5, and acoustical cotton 7 covers the through hole 5111 of the T-shaped yoke 51 of magnetic circuit 5.More specifically,
Acoustical cotton 7 is to be located at the center of through hole 5111 to be right against the center in the top dome portion 11 of vibrating diaphragm 1.And the present embodiment it
But not limited to this for cylinder for acoustical cotton 7.Thereby, acoustical cotton 7 can reduce wind noise, further reduce resonant frequency, expand
Big effective bandwidth scope, the acoustic resistance at 1 rear of adjustment vibrating diaphragm and the smoothness of overall impedance curve.
Refering to Fig. 2 and Fig. 4, in an embodiment, for 1 rear of vibrating diaphragm is made to become complete confined space, after avoiding vibrating diaphragm 1
Interference of the square sound field to front sound wave, the phenomenon that preventing acoustic short circuit, occur, and therefore, further include back cavity 8 and rear cover 9.Back cavity 8 is worn
In outside acoustical cotton 7, and rear cover 9 is covered in the back cavity 8 and the acoustical cotton 7.More specifically, back cavity 8 is open circles barrel structure but not
As limit, the back cavity 8 of the present embodiment has the sets of holes 81 through both ends, and the sets of holes 81 of back cavity 8 are set in outside acoustical cotton 7.And
Rear cover 9 is that but not limited to this for circular sheet body structure, and the circumferential profile of rear cover 9 corresponds to the circumferential profile of back cavity 8, and rear cover 9 covers
One end of back cavity 8 is incorporated into close the sets of holes 81 of back cavity.Thereby, the space at 1 rear of vibrating diaphragm includes T-shaped yoke through hole
5111, acoustical cotton 7, back cavity 8 and rear cover 9 form complete confined space.In addition it is preferable to use aluminium alloy materials for back cavity 8 and rear cover 9
Material, helps to radiate to magnetic circuit 5, that improves the high pitch loudspeaker bears power.
Refering to Fig. 4 and Fig. 5, in an embodiment, short-circuited conducting sleeve C is further included, short-circuited conducting sleeve C is set in the T-shaped yoke 51 of magnetic circuit 5
Vertical portion 511 close to one end of vibrating diaphragm 1.More specifically, short-circuited conducting sleeve C has centre bore C1, the office of short-circuited conducting sleeve C covering arcs edge 5112
Portion, arc edge 5112 then face the centre bore C1 of short-circuited conducting sleeve C close to the part of through hole 5111.In this, short-circuited conducting sleeve C is high-conductive metal
It is made, but not limited to this for copper ring by the short-circuited conducting sleeve C of the present embodiment.Thereby, through the electromagnetic conversion of short-circuited conducting sleeve C and magnetic circuit 5
Magnetic field influences, and can reduce high frequency induction reactance, extends high frequency, reduces harmonic distortion.
Continue cooperation refering to Fig. 2 and refering to Fig. 5, hard sphere top high pitch loud speaker can also include stent 3, and stent 3 is annulus
Shape structure simultaneously has matching hole 31.The second end 22 on outstanding side 2 is connected to stent 3 along matching hole 31.Thereby, stent 3 and outstanding side 2
Vibrating diaphragm 1 has been suspended in cooperation support in midair.In an embodiment, to further improve the structural stability of single unit system, have on stent 3
Combined hole 32, combined hole 32 are located at around matching hole 31, and have column 531 on the magnetic conductive board 53 of magnetic circuit 5.Thereby, magnetic
The column 531 of the magnetic conductive board 53 on road 5 can be corresponded in the combined hole 32 for penetrating stent 3, and magnetic circuit 5 is enable to be positioned at stent 3,
And then improve the structural stability of single unit system.
Although the application is disclosed as above with embodiment, so it is not limited to this case, any skilled person,
Do not depart from spirit and scope, when can make a little change and retouch, therefore the protection domain of the application when regarding after it is attached
The scope that is defined of claims subject to.
Claims (10)
1. a kind of hard sphere top high pitch loud speaker, which is characterized in that include：
One vibrating diaphragm includes a top dome portion；
One outstanding side, one end is connected to the top dome portion of the vibrating diaphragm；
One voice coil, below the vibrating diaphragm；And
One magnetic circuit, below the voice coil, which includes a T-shaped yoke, and the center of the T-shaped yoke has a through hole, this is logical
The surface of position in hole is to the center of the vibrating diaphragm.
2. hard sphere top high pitch loud speaker as described in claim 1, which is characterized in that the T-shaped yoke has a vertical portion and one
Support part, the vertical portion stand on the support portion, and the center in the vertical portion has the through hole.
3. hard sphere top high pitch loud speaker as claimed in claim 2, which is characterized in that the vertical portion of the T-shaped yoke includes one first
Body section and one second body section, the first body section extend along the direction of the vertical support portion, and the second body section is compared to first body
Section is tilted as taper.
4. hard sphere top high pitch loud speaker as described in claim 1, it is characterised in that：The vibrating diaphragm includes one first convergence part and one
Second convergence part, first convergence part are connected with the top dome portion, which is connected with first convergence part, and this first
The extending direction of convergence part is vertical with the extending direction of second convergence part, the outstanding side be connected to first convergence part, this second
Convergence part and the top dome portion.
5. hard sphere top high pitch loud speaker as claimed in claim 4, it is characterised in that：The voice coil includes a spool and a coil,
The spool includes an Actuator Division and an extension, has angle between the extension and the Actuator Division, which is set in the work
Dynamic portion, which fits in first convergence part, and the extension fits in the top dome portion.
6. hard sphere top high pitch loud speaker as claimed in claim 5, which is characterized in that comprising a gluing portion, which is located at
The spool boundary position of the vibrating diaphragm and the voice coil.
7. hard sphere top high pitch loud speaker as claimed in claim 6, which is characterized in that the gluing portion includes an outer rim, the outer rim
The Actuator Division is extended to by second convergence part.
8. hard sphere top high pitch loud speaker as described in claim 1, which is characterized in that comprising an acoustical cotton, which is located at
Below the magnetic circuit, and the acoustical cotton covers the through hole of the magnetic circuit.
9. hard sphere top high pitch loud speaker as claimed in claim 8, which is characterized in that comprising a back cavity, which is set in this
Acoustical cotton.
10. hard sphere top high pitch loud speaker as claimed in claim 9, which is characterized in that comprising a rear cover, which is covered in this
Back cavity and the acoustical cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245802.4U CN207410507U (en) | 2017-09-26 | 2017-09-26 | Hard sphere top high pitch loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245802.4U CN207410507U (en) | 2017-09-26 | 2017-09-26 | Hard sphere top high pitch loud speaker |
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| Publication Number | Publication Date |
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| CN207410507U true CN207410507U (en) | 2018-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721245802.4U Active CN207410507U (en) | 2017-09-26 | 2017-09-26 | Hard sphere top high pitch loud speaker |
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| CN (1) | CN207410507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109561368A (en) * | 2017-09-26 | 2019-04-02 | 惠州超声音响有限公司 | Hard sphere top high pitch loudspeaker |
-
2017
- 2017-09-26 CN CN201721245802.4U patent/CN207410507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109561368A (en) * | 2017-09-26 | 2019-04-02 | 惠州超声音响有限公司 | Hard sphere top high pitch loudspeaker |
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Address after: 516223 Difeni Industrial Zone, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: Huizhou Difenni Acoustics Technology Co., Ltd. Address before: 516223 Difeni Industrial Zone, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: Huizhou Ultrasonic Audio Co., Ltd. |