CN204616037U - The frame structure of high-fidelity headphone loudspeaker - Google Patents
The frame structure of high-fidelity headphone loudspeaker Download PDFInfo
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- CN204616037U CN204616037U CN201520270883.8U CN201520270883U CN204616037U CN 204616037 U CN204616037 U CN 204616037U CN 201520270883 U CN201520270883 U CN 201520270883U CN 204616037 U CN204616037 U CN 204616037U
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- frame body
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Abstract
The utility model discloses a kind of frame structure of high-fidelity headphone loudspeaker, comprise frame body, described frame body offers some through holes; Described frame body is taper, comprises the larger top of radius and the less bottom of radius, and described some through holes around the circumference of described frame body, and form multirow near side, laterally closer bottom, top one spread configuration; At described frame body, the side of vibrating diaphragm is provided with the cotton layer of sound absorption.Adopt technique scheme, the frame structure of high-fidelity headphone loudspeaker of the present utility model, when after vibrating diaphragm vibrations sounding, sound wave is propagated to the both sides of vibrating diaphragm, for the sound wave propagated to frame side, part sound wave can be absorbed by the cotton layer of sound absorption, another part sound wave can through after the through hole that frame is offered to external diffraction, therefore these sound waves will impel vibrating diaphragm to form diaphagras because generation is launched.
Description
Technical field
The utility model relates to earphone field, particularly relates to a kind of frame structure of high-fidelity headphone loudspeaker.
Background technology
Earphone is a kind of electronic product conventional in life.The tonequality of earphone is subject to the impact of many factors, such as the diaphagras of earphone diaphragm.For the vibrations of ripples, after a basin crystal is caused calmness, instill a water in central authorities, can find that the ripples evoked spread to surrounding, when ripples touch basin, can be reflected back, reflected wave can interfere the ripples still continuing diffusion.If with the rhythmical past middle position instillation water droplet that dropper continues, can evoke the ripples of the another ripple of a ripple, then produce the another wave reflection ripple of a ripple, these ripples are interfered mutually, and the whole water surface is active, and ripples are so not clear before.In fact, when electrodynamic loudspeaker works, also can run into such problem, after voice coil loudspeaker voice coil energising, become electromagnet, produce active force with permanent magnet, Continuous Drive vibrating diaphragm sounding.But this process can not be considered as simple piston movement, vibrating diaphragm is not rigid body completely, and during its motion, itself can produce deformation as the water surface.Waveform is propagated along by voice coil loudspeaker voice coil and vibrating diaphragm bonding place to surrounding and front end, and to when running into ring, ripple also can equally be reflected back by ripples, thus mutually interferes with other waveforms.It is more complicated that actual conditions spill ripples than water droplet, because driving frequency is much higher, changes also faster.But when frequency reaches certain value, vibrating diaphragm vibration of forming region because of the mutual interference of ripple.In experiment in middle school, have the experiment of " interference of ripple ", its experimental situations is a bit similar to the phenomenon that we mention, and can use for reference, so more more vivid, because we cannot take appearance when shaking vibration of membrane with camera.Vibrating diaphragm is divided into multiple region by invisible at different frequencies, and some adjacent domain oscillation phase place is also anti-phase each other.The local vibration in this one-tenth region, is just diaphagras.
When speaker operation, especially during high power work, the parts of loud speaker self, comprise the parts that should not vibrate, such as voice coil loudspeaker voice coil, etc. reality also vibration, even loud speaker, itself all vibration, the gas inside and outside casing is to the jacking of vibrating diaphragm, and these all can finally occur generation effect to diaphagras.Such as shown in Fig. 1, the loudspeaker of earphone generally include frame 101, base 102, iron core 103, magnet 104, voice coil loudspeaker voice coil 105, vibrating diaphragm 106, dust cap 107 and play ripple 108.After voice coil loudspeaker voice coil 105 is energized, become electromagnet, along with the change of signal, the magnetic field that electromagnet produces along with changing, can produce active force with magnet 104, and Continuous Drive vibrating diaphragm 106 shakes sounding.After vibrating diaphragm 106 shakes sounding, sound wave is propagated to the both sides of vibrating diaphragm 106, according to sound transmission theory, for the sound wave propagated to frame 101 side, when collision frame 101 rear portion can be absorbed by frame 101, another part can be reflected by frame 101, as in Fig. 1 pointed by arrow, and when sound wave by will be follow-up with vibrating diaphragm 106 after reflecting the sound wave that produces of vibrations sounding there is dry penetrating, form diaphagras.Segmentation vibrations are current can't be completely eliminated, and can only reduce as much as possible.Split distortion by simple knowledge, we are aware of the communication media of vibrating diaphragm as vibration, and physical characteristic itself also can have influence on the severe degree of diaphagras, and desirable material is exactly good rigidly and the higher diaphragm of internal damping.Good rigidly is deformation not easily, can rapid decay after the higher then vibration of internal damping, but to seem these two characteristics be opposed, actual conditions are materials of good rigidly, and internal damping is low, such as metal vibration diaphragm, the material that rigidity is poor, internal damping is high, such as vibrating diaphragm and paper substrate vibrating diaphragm.Therefore, the improvement that it may be necessary technology reduces diaphagras as far as possible, to avoid earphone tonequality serious distortion.
Utility model content
Therefore, the technical problems to be solved in the utility model provides a kind of by changing the structure of frame, to reduce frame to sound wave reflection, thus reduces the diaphagras of vibrating diaphragm, and then improves the frame structure of high-fidelity headphone loudspeaker of earphone tonequality.
To achieve these goals, the frame structure of a kind of high-fidelity headphone loudspeaker of the present utility model, comprises frame body, and described frame body offers some through holes; Described frame body is taper, comprises the larger top of radius and the less bottom of radius, and described some through holes around the circumference of described frame body, and form multirow near side, laterally closer bottom, top one spread configuration; At described frame body, the side of vibrating diaphragm is provided with the cotton layer of sound absorption.
Also to be provided with the fixed network fallen for the cotton pull-up that prevents from absorbing sound near the side of vibrating diaphragm at the cotton layer of described sound absorption.
Any two row in described multirow through hole, the pitch-row relatively in the row of side, top is larger than the pitch-row relatively in the row of side, bottom.
Described through hole is equilateral triangle.
Arbitrary row in described multirow through hole, the through hole of its equilateral triangle at least with axially vertical.
The thickness on the top of described frame body is less than the thickness of bottom.
Adopt technique scheme, the frame structure of high-fidelity headphone loudspeaker of the present utility model, when after vibrating diaphragm vibrations sounding, sound wave is propagated to the both sides of vibrating diaphragm, for the sound wave propagated to frame side, part sound wave can be absorbed by the cotton layer of sound absorption, another part sound wave can through after the through hole that frame is offered to external diffraction, therefore these sound waves will impel vibrating diaphragm to form diaphagras because generation is launched.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing earphone horn.
Fig. 2 is the structural representation of frame in the utility model.
Fig. 3 is the plan structure schematic diagram of frame in the utility model.
Fig. 4 is the structural representation of earphone horn in the utility model.
Embodiment
Below by way of the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2,3, the present embodiment provides a kind of frame structure of high-fidelity headphone loudspeaker, comprises frame body 101a, and described frame body 101a offers some through hole 101b; Described frame body 101a is taper, comprise the larger top 101a1 of radius and the less bottom 101a2 of radius, described some through hole 101b around the circumference of described frame body 101a, and form multirow near side, laterally closer bottom, top one spread configuration; Any two row in described multirow through hole, the pitch-row relatively in the row of 101a1 side, top is larger than the pitch-row relatively in the row of 101a2 side, bottom.
At described frame body 101a, the side of vibrating diaphragm is provided with the cotton layer 101c of sound absorption.
Also to be provided with the fixed network 101d come off for the cotton layer 101c that prevent from absorbing sound near the side of vibrating diaphragm at described sound absorption cotton layer 101c.
Described through hole is circular hole, is of value to processing, but also can be other shapes, and such as described through hole is equilateral triangle.
Arbitrary row in described multirow through hole, the through hole of its equilateral triangle at least with axially vertical.
The thickness on the top of described frame body is less than the thickness of bottom, reason is as follows: owing to offering through hole on frame body, and through hole is closeer in bottom, therefore in order to increase the structural strength of bottom, the thickness that described frame body is set to top is less than the thickness of bottom.
Adopt technique scheme, the frame structure of high-fidelity headphone loudspeaker of the present utility model, when after vibrating diaphragm vibrations sounding, sound wave is propagated to the both sides of vibrating diaphragm, for the sound wave propagated to frame side, part sound wave can through after the through hole that frame is offered to external diffraction, therefore this part sound wave will impel vibrating diaphragm to form diaphagras because generation is launched.Because the low side of frame is more near the low side of vibrating diaphragm, and the low side vibrations of vibrating diaphragm are more violent, therefore any two row in described multirow, pitch-row relatively in the row of 101a1 side, top is larger than the pitch-row relatively in the row of 101a2 side, bottom, that is the through hole in the row of low side 101a2 side is closeer, can play better acoustic wave diffraction effect, the through hole simultaneously near the row of 101a1 side, top is thinner, can ensure the structural strength of frame as far as possible.
As shown in Figure 4, the utility model also provides a kind of high-fidelity headphone loudspeaker, comprises frame 101, base 102, iron core 103, magnet 104, voice coil loudspeaker voice coil 105, vibrating diaphragm 106, dust cap 107 and plays ripple 108.Wherein iron core 103 and magnet 104 are fixed on base 102 and form magnetic circuit system, and described voice coil loudspeaker voice coil 105 upper end is fixed on vibrating diaphragm 106, and the other end is through the magnetic gap of magnetic circuit system.Described frame 101 comprises frame body 101a, and described frame body 101a offers some through hole 101b; Described frame body 101a is taper, comprise the larger top 101a1 of radius and the less bottom 101a2 of radius, described some through hole 101b around the circumference of described frame body 101a, and form multirow near side, laterally closer bottom, top one spread configuration; Any two row in described multirow through hole, the pitch-row relatively in the row of 101a1 side, top is larger than the pitch-row relatively in the row of 101a2 side, bottom.
The side of vibrating diaphragm is leaned on to be provided with the cotton layer 101c of sound absorption at described frame body 101a.
Also to be provided with the fixed network 101d come off for the cotton layer 101c that prevent from absorbing sound near the side of vibrating diaphragm at described sound absorption cotton layer 101c.
Described through hole is circular hole, is of value to processing, but also can be other shapes, and such as described through hole is equilateral triangle.
Arbitrary row in described multirow through hole, the through hole of its equilateral triangle at least with axially vertical.
The thickness on the top of described frame body is less than the thickness of bottom, reason is as follows: owing to offering through hole on frame body, and through hole is closeer in bottom, therefore in order to increase the structural strength of bottom, the thickness that described frame body is set to top is less than the thickness of bottom.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (6)
1. a frame structure for high-fidelity headphone loudspeaker, is characterized in that: comprise frame body, and described frame body offers some through holes; Described frame body is taper, comprises the larger top of radius and the less bottom of radius, and described some through holes around the circumference of described frame body, and form multirow near side, laterally closer bottom, top one spread configuration; At described frame body, the side of vibrating diaphragm is provided with the cotton layer of sound absorption.
2. the frame structure of high-fidelity headphone loudspeaker as claimed in claim 1, is characterized in that: to be also provided with the fixed network fallen for the cotton pull-up that prevents from absorbing sound near the side of vibrating diaphragm at the cotton layer of described sound absorption.
3. the frame structure of high-fidelity headphone loudspeaker as claimed in claim 2, is characterized in that: any two row in described multirow through hole, and the pitch-row relatively in the row of side, top is larger than the pitch-row relatively in the row of side, bottom.
4. the frame structure of high-fidelity headphone loudspeaker as claimed in claim 3, is characterized in that: described through hole is equilateral triangle.
5. the frame structure of high-fidelity headphone loudspeaker as claimed in claim 4, is characterized in that: the arbitrary row in described multirow through hole, the through hole of its equilateral triangle at least vertical with axis.
6. the frame structure of high-fidelity headphone loudspeaker as claimed in claim 5, is characterized in that: the thickness on the top of described frame body is less than the thickness of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520270883.8U CN204616037U (en) | 2015-04-30 | 2015-04-30 | The frame structure of high-fidelity headphone loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520270883.8U CN204616037U (en) | 2015-04-30 | 2015-04-30 | The frame structure of high-fidelity headphone loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204616037U true CN204616037U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520270883.8U Expired - Fee Related CN204616037U (en) | 2015-04-30 | 2015-04-30 | The frame structure of high-fidelity headphone loudspeaker |
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| Country | Link |
|---|---|
| CN (1) | CN204616037U (en) |
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2015
- 2015-04-30 CN CN201520270883.8U patent/CN204616037U/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 |
Granted publication date: 20150902 Termination date: 20160430 |