CN202103836U - Loudspeaker vibrating diaphragm and loudspeaker - Google Patents
Loudspeaker vibrating diaphragm and loudspeaker Download PDFInfo
- Publication number
- CN202103836U CN202103836U CN2011200851335U CN201120085133U CN202103836U CN 202103836 U CN202103836 U CN 202103836U CN 2011200851335 U CN2011200851335 U CN 2011200851335U CN 201120085133 U CN201120085133 U CN 201120085133U CN 202103836 U CN202103836 U CN 202103836U
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- convexity
- voice coil
- diaphragm
- loudspeaker
- inclination portion
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Abstract
The utility model discloses a loudspeaker vibrating diaphragm and a loudspeaker comprising the same. A bulge is arranged on the conical inclined part of the loudspeaker vibrating diaphragm so as to reduce the peak of a medium high frequency band in a loudspeaker frequency response curve, and make the frequency response curve of the medium high frequency band relatively smooth, thereby improving the sound effect of the medium high frequency band and reflecting original sound more authentically. The bulge of the vibrating diaphragm is provide with a hole so as to further reduce the peak or valley of the medium low frequency band of the loudspeaker frequency response curve, and make the loudspeaker frequency response curve relatively smooth at both the medium high frequency band and the medium low frequency band, thereby further improving the hearing effect of the loudspeaker and making sound more authentic and pleasant.
Description
Technical field
The utility model relates to a kind of loundspeaker diaphragm, also relates to the loud speaker that comprises this vibrating diaphragm.
Background technology
Loud speaker belongs to electro-acoustic transducer device, and electric energy makes diaphragm vibrate through galvanomagnetic effect, and the diaphragm of vibration and ambient air resonate and sound; The shape of diaphragm will influence sound effect, and existing vibrating diaphragm is shape in the form of a truncated cone, like this on the diaphragm conical inclination portion when vibration sounding; Medium-high frequency section on the frequency response curve like 2000Hz ~ 3000Hz frequency range, spike can occur; Cause the appearance of ear-piercing or hoarse sound easily, then former sound distortion, auditory effect is bad.
Summary of the invention
First purpose of the utility model provides the loundspeaker diaphragm that convexity reduces medium-high frequency section spike is set in conical inclination portion;
Second purpose of the utility model provides the loud speaker that comprises above-mentioned loundspeaker diaphragm, and this loud speaker smoothly improves auditory effect through frequency response curve medium-high frequency section.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of loundspeaker diaphragm, have conical inclination portion, and have at least one convexity in the said conical inclination portion towards the front protrusion.
Preferably, saidly be raised with a plurality ofly, a plurality of said convexities distribute along the circumferential direction of said conical inclination portion separately.
Further preferably, saidly be raised to rare a pair of, paired said convexity and be symmetrical distribution according to the center line of said conical inclination portion.
Further preferably, have at least on a pair of said convexity all to offer perforate, be coated with flashing in the said perforate, the perforate on the paired said convexity is symmetrical distribution according to the center line of said conical inclination portion.
Preferably, said convexity is extended in the form of a ring along the circumferential direction of said conical inclination portion.
Preferably, have at least on the said convexity to offer perforate, be coated with flashing in the said perforate.
The loud speaker that comprises above-mentioned loundspeaker diaphragm.
As a kind of concrete execution mode; This loud speaker comprise intermediate recess form the framework of resonant cavity, be arranged in said resonant cavity vibrating diaphragm, be fixed on fixedly magnetic circuit component on the said framework, can be driven the voice coil loudspeaker voice coil that do axial motion by said fixedly magnetic circuit component; The outer peripheral face of said voice coil loudspeaker voice coil is connected on the inner peripheral surface of said framework through the location elastic wave sheet; The periphery of said vibrating diaphragm is bonded on the outer peripheral face of said voice coil loudspeaker voice coil, and the neighboring of said vibrating diaphragm is bonded in the inner rim portion of said framework through elastic edge.
Because the utilization of technique scheme; The utility model compared with prior art has advantage: in the conical inclination portion of loundspeaker diaphragm, convexity is set; Can reduce the spike of the medium-high frequency section of loud speaker frequency response curve like this; Make that the frequency response curve of medium-high frequency section is comparatively level and smooth, improved the sound effect of medium-high frequency section, relatively can reflect primary sound truly.Perforate on the convexity of vibrating diaphragm; Can also further reduce the spike or the low ebb of the medium and low frequency section of loud speaker frequency response curve; Make that the frequency response curve of loud speaker is all more level and smooth in medium-high frequency section and medium and low frequency section, then further improved the auditory effect of loud speaker, make sound more truly, more pleasing to the ear.
Description of drawings
Accompanying drawing 1 is the front view of vibrating diaphragm in the utility model, wherein is bonded with elastic edge on the neighboring of vibrating diaphragm;
Accompanying drawing 2 is the cutaway view of accompanying drawing 1 along the A-A direction;
Accompanying drawing 3 is a B place enlarged drawing in the accompanying drawing 2;
Accompanying drawing 4 is the front view of loud speaker in the utility model;
Accompanying drawing 5 is the cutaway view of accompanying drawing 4 along the C-C direction;
Embodiment
Come further to set forth the structure of the utility model below in conjunction with accompanying drawing.
In Fig. 1-3, a kind of loundspeaker diaphragm 1 has conical inclination portion 2, has at least one convexity 3 towards the front protrusion in the conical inclination portion 2, and the front here refers to the surface that vibrating diaphragm 1 depression is entered, and is as shown in Figure 2.Protruding arrangement has multiple, and for example, convexity can be extended in the form of a ring along the circumferential direction of conical inclination portion, perhaps is raised with a plurality ofly, and a plurality of convexities distribute along the circumferential direction of conical inclination portion separately.In the present embodiment, protruding 3 have a pair of, paired convexity 3 to be symmetrical distribution according to the center line of conical inclination portion 2.On the radial section of conical inclination portion 2, as shown in Figure 2, protruding 3 is curved, and protruding 3 height reduces along from outside to inside direction gradually.In other execution mode, convexity can be provided with rectangular shape.
To have paired protruding 3 vibrating diaphragm 1 is assembled in the loud speaker and uses; Shown in Figure 4 and 5; Loud speaker comprise intermediate recess form the framework 7 of resonant cavity 11, be arranged in resonant cavity 11 vibrating diaphragm 1, be fixed on the fixedly magnetic circuit component 10 on the framework 7, the magnetic circuit component that can be fixed 10 drives the voice coil loudspeaker voice coil 8 of doing axial motion; The outer peripheral face of voice coil loudspeaker voice coil 8 is connected on the inner peripheral surface of framework 7 through location elastic wave sheet 9; The periphery of vibrating diaphragm 1 is bonded on the outer peripheral face of voice coil loudspeaker voice coil 8, and the neighboring of vibrating diaphragm 1 is bonded in the inner rim portion of framework 1 through elastic edge 6.Fixedly magnetic circuit component 10 comprises ring-type iron plate 14, ring-type magnet steel 13, the T iron 12 of phase sequence bonding, and as shown in Figure 5, iron plate 14 is riveted on the framework 7; The center column of T iron 12 inserts in the annular cavity of iron plate 14 and magnet steel 13; Ring-type iron plate 14, ring-type magnet steel 13, T iron 12 form magnetic loop, form the magnetic slit 15 of annular between the center column of T iron 12 and iron plate 14 and the magnet steel 13, and voice coil loudspeaker voice coil 8 inserts in the magnetic slit 15; When having tone currents to pass through in the voice coil loudspeaker voice coil 8 like this; Can produce the magnetic field that changes with tone currents, the magnetic field that magnetic loop produces in this magnetic field and the fixing magnetic circuit component 10 interacts, and makes voice coil loudspeaker voice coil 8 generation axial vibrations; Be with vibrating diaphragm 1 vibration sounding, the frequency response curve of this loud speaker is shown in the blue curve among Fig. 6.
Red curve among Fig. 6 is the frequency response curve of the loud speaker of the traditional vibrating diaphragm assembling of employing; The tradition vibrating diaphragm is the diaphragm of the shape in the form of a truncated cone mentioned in the background technology; Blue curve is for adopting the frequency response curve be arranged to the loud speaker of the diaphragm assembling of convexity; Green curve is for adopting the upward frequency response curve of the loud speaker of the diaphragm assembling of perforate of paired convexity, and relatively blue curve and red curve can see that the loud speaker with paired vibrating diaphragm of protruding 31 can reduce the spike of medium-high frequency section; Spike like 2000 Hz ~ 3000Hz frequency range; The frequency response curve of this loud speaker medium-high frequency section is comparatively level and smooth, has improved the sound effect of medium-high frequency section, more can reflect primary sound truly.Usually the frequency range that can hear of people's ear is 20 Hz ~ 20KHz, and it is divided into basic, normal, high three frequency ranges, low-frequency range 20 Hz ~ 640 Hz wherein, Mid Frequency 640 Hz ~ 2500 Hz, high band 2500 Hz ~ 20KHz.
In the blue curve of Fig. 6, though the convexity 3 on the loundspeaker diaphragm 1 can reduce the spike of medium-high frequency section, can cause the spike or the low ebb of medium and low frequency section, like spike or the low ebb of 600 Hz ~ 1500 Hz.For spike or the low ebb that reduces the medium and low frequency section; Have at least on a pair of protruding 3 all to offer perforate 4, be coated with flashing 5 in the perforate 4, like Fig. 1-3; Flashing 5 can adopt sheet rubber, and the perforate 4 on the convexity 3 is symmetrical distribution according to the center line of conical inclination portion 2 in pairs.The frequency response curve of the loud speaker that vibrating diaphragm 1 assembling of perforate 4 on protruding 3 forms is shown in the green curve of Fig. 6; Be not difficult to find out; The frequency response curve of this loud speaker is all more level and smooth in medium-high frequency section and medium and low frequency section; Then further improved the auditory effect of loud speaker, make sound more truly, more pleasing to the ear.
To sum up; In the conical inclination portion of loundspeaker diaphragm, convexity is set, can suppresses the branch vibration effectively, reduce the spike of medium-high frequency section on the loud speaker frequency response curve; Perforate and cover with flashing on convexity then can make level and smooth that the frequency response curve of medium and low frequency section becomes.
Claims (8)
1. a loundspeaker diaphragm has conical inclination portion, it is characterized in that: have at least one convexity towards the front protrusion in the said conical inclination portion.
2. loundspeaker diaphragm according to claim 1 is characterized in that: saidly be raised with a plurality ofly, a plurality of said convexities distribute along the circumferential direction of said conical inclination portion separately.
3. loundspeaker diaphragm according to claim 1 is characterized in that: said convexity is extended in the form of a ring along the circumferential direction of said conical inclination portion.
4. loundspeaker diaphragm according to claim 2 is characterized in that: saidly be raised to rare a pair of, paired said convexity and be symmetrical distribution according to the center line of said conical inclination portion.
5. loundspeaker diaphragm according to claim 1 is characterized in that: have at least on the said convexity to offer perforate, be coated with flashing in the said perforate.
6. loundspeaker diaphragm according to claim 4; It is characterized in that: have at least on a pair of said convexity all to offer perforate; Be coated with flashing in the said perforate, the perforate on the paired said convexity is symmetrical distribution according to the center line of said conical inclination portion.
7. a loud speaker is characterized in that: comprise the described loundspeaker diaphragm of above-mentioned each claim.
8. loud speaker according to claim 7; It is characterized in that: this loud speaker comprise intermediate recess form the framework of resonant cavity, be arranged in said resonant cavity vibrating diaphragm, be fixed on fixedly magnetic circuit component on the said framework, can be driven the voice coil loudspeaker voice coil that do axial motion by said fixedly magnetic circuit component; The outer peripheral face of said voice coil loudspeaker voice coil is connected on the inner peripheral surface of said framework through the location elastic wave sheet; The periphery of said vibrating diaphragm is bonded on the outer peripheral face of said voice coil loudspeaker voice coil, and the neighboring of said vibrating diaphragm is bonded in the inner rim portion of said framework through elastic edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200851335U CN202103836U (en) | 2011-03-28 | 2011-03-28 | Loudspeaker vibrating diaphragm and loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200851335U CN202103836U (en) | 2011-03-28 | 2011-03-28 | Loudspeaker vibrating diaphragm and loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202103836U true CN202103836U (en) | 2012-01-04 |
Family
ID=45389833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200851335U Expired - Lifetime CN202103836U (en) | 2011-03-28 | 2011-03-28 | Loudspeaker vibrating diaphragm and loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202103836U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220604A (en) * | 2012-08-30 | 2013-07-24 | 苏州上声电子有限公司 | Vibrating diaphragm for loudspeaker and loudspeaker |
| CN106465002A (en) * | 2014-05-14 | 2017-02-22 | 雅马哈株式会社 | Electroacoustic transducer |
| US10194245B1 (en) | 2017-07-28 | 2019-01-29 | Bose Corporation | Acoustic transducer with vibration damping |
-
2011
- 2011-03-28 CN CN2011200851335U patent/CN202103836U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220604A (en) * | 2012-08-30 | 2013-07-24 | 苏州上声电子有限公司 | Vibrating diaphragm for loudspeaker and loudspeaker |
| CN106465002A (en) * | 2014-05-14 | 2017-02-22 | 雅马哈株式会社 | Electroacoustic transducer |
| US10194245B1 (en) | 2017-07-28 | 2019-01-29 | Bose Corporation | Acoustic transducer with vibration damping |
| US10462573B2 (en) | 2017-07-28 | 2019-10-29 | Bose Corporation | Acoustic transducer with vibration damping |
| US10462572B2 (en) | 2017-07-28 | 2019-10-29 | Bose Corporation | Acoustic transducer with vibration damping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215133 Suzhou City, Xiangcheng District province science and Technology Park and the road No. 333, No. Patentee after: Suzhou Sonavox electronic Limited by Share Ltd Address before: 215133 Suzhou City, Xiangcheng District province science and Technology Park and the road No. 333, No. Patentee before: Shangsheng Electronic Co., Ltd., Suzhou |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |