CN214544750U - Anti-resonance headset - Google Patents
Anti-resonance headset Download PDFInfo
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- CN214544750U CN214544750U CN202121026347.5U CN202121026347U CN214544750U CN 214544750 U CN214544750 U CN 214544750U CN 202121026347 U CN202121026347 U CN 202121026347U CN 214544750 U CN214544750 U CN 214544750U
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- sound insulation
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- resonance
- compression cotton
- cotton
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Abstract
The utility model discloses a prevent headphone of resonance. The anti-resonance headphone of the utility model comprises a pad, a loudspeaker, a sound insulation cavity and a back shell; the sound insulation cavity is arranged in the cavity of the rear shell and the pad disc, so that the acoustics of the earphone is kept balanced left and right. And, increase interior compression cotton and outer compression cotton respectively on the front and back side in sound insulation chamber, the compression produces pressure after interior compression cotton contacts with the U cup of speaker, and the compression produces the compressive force after outer compression cotton contacts with battery or PCBA board, and interior compression cotton presss from both sides the sound insulation chamber from top to bottom with outer compression cotton together, and the intensity in sound insulation chamber can be strengthened to the compressive force that interior compression cotton and outer compression cotton produced simultaneously, controls the resonance in sound insulation chamber, solves the bad problem of acoustics that sound insulation chamber structure restriction brought.
Description
Technical Field
The utility model relates to an earphone technical field, concretely relates to prevent headphone of resonance.
Background
The earphone as a follow-up player can play and listen to audio without influencing other people, and has wide application. With the development of technology, the popularization of earphones is also more and more extensive.
However, as the demand of people increases, the functional requirements of the earphone are more and more, especially the popularization of the wireless earphone, different PCBA boards and batteries need to be installed in the cavity of the earphone, and different function keys need to be installed by opening holes at the edge of the rear shell of the earphone. Because PCBA board and battery can't accomplish completely unanimous in shape and volume, the function key hole is also difficult to accomplish bilateral symmetry and size unanimous about the earphone, can lead to about the ear rear chamber volume and the air volume of rear chamber be difficult to accomplish about unanimous like this to cause the earphone acoustics to control the disequilibrium.
In order to solve the problem of left-right imbalance, for example, in the headset disclosed in patent CN210469685U, a sound insulation cavity with the same size is respectively added in the back cavities of the left and right ears to surround the speaker to form a new sound insulation cavity, and because the cavity volume of the sound insulation cavity is the same in the left and right, the volume of the sound insulation cavity is not affected by the size of the battery and the PCBA board in the back cavity, and the problem of the original left and right cavity volume is not the same is solved. However, the thickness, strength and size of the material of the sound insulation cavity are often limited by the structure, and resonance is easily generated when the earphone works, so that new poor acoustics can be caused, and the difficulty of acoustic debugging is increased.
SUMMERY OF THE UTILITY MODEL
For solving the existing headphone and having the defect of resonance after setting up the sound insulation cavity, the utility model provides a prevent headphone of resonance.
The purpose of the utility model is realized through the following technical scheme.
An anti-resonance headphone comprises a pad, a loudspeaker, a sound insulation cavity and a rear shell;
the rear shell is arranged at the rear end of the pad disc, and a first cavity is formed between the rear shell and the pad disc; the sound insulation cavity is arranged at the rear end of the pad disc and is positioned in the first cavity, and a second cavity is formed between the sound insulation cavity and the pad disc; the loudspeaker is arranged in the second cavity, and internal compression cotton is arranged between the loudspeaker and the sound insulation cavity; and outer compression cotton is arranged between the sound insulation cavity and the rear shell.
In a preferred embodiment, the saucer is provided with a speaker positioning hole and a soundproof cavity positioning groove.
In a more preferred embodiment, a first tuning hole is arranged between the speaker positioning hole and the sound insulation cavity positioning groove. By adjusting the size of the first tuning hole, the frequency response of the earphone can be effectively adjusted.
Further preferably, a first tuning block is disposed on the first tuning hole. The first adjusting block can be a tuning net, and the size of the first tuning hole can be indirectly adjusted by adjusting the ventilation density of the first tuning block, so that the frequency response of the earphone is effectively adjusted.
In a preferred embodiment, a compressed cotton positioning hole is arranged at the rear end of the sound insulation cavity, and comprises an inner compressed cotton positioning hole and an outer compressed cotton positioning hole; the inner compression cotton positioning hole is formed in the inner wall of the rear end of the sound insulation cavity, and the outer compression cotton positioning hole is formed in the rear end of the sound insulation cavity;
the inner compression cotton positioning hole corresponds to the outer compression cotton positioning hole, and a reinforcing rib for connection is arranged in the middle of the inner compression cotton positioning hole; the inner compression cotton is positioned in the inner compression cotton positioning hole and generates a compression effect with the loudspeaker, the compression force of the inner compression cotton can be adjusted by adjusting the thickness of the inner compression cotton, and the frequency response of the earphone can be adjusted by adjusting the density of the inner compression cotton; the outer compression cotton is positioned in the outer compression cotton positioning hole and generates a compression effect with the rear shell, the compression force of the outer compression cotton can be adjusted by adjusting the thickness of the outer compression cotton, and the frequency response of the earphone can be adjusted by adjusting the density of the outer compression cotton.
In a more preferred embodiment, the outer circumference of the outer compression cotton positioning hole is provided with a first vent hole and a wire hole through which a wire can pass to connect the speaker with an external power source.
In a preferred embodiment, the side wall of the sound insulation cavity is provided with a second vent hole. By adjusting the size of the second vent hole, the frequency response of the earphone can be effectively adjusted.
Further preferably, a sealing member and a second tuning block are provided in the second vent hole. The second tuning block is specifically a tuning net, and the frequency response of the earphone can be effectively adjusted by adjusting the ventilation density of the second tuning block.
In a more preferred embodiment, a third vent hole is formed in a side wall of the rear housing, and the second vent hole corresponds to the third vent hole. And after the sound insulation cavity and the rear shell are assembled, the third vent hole corresponds to the second vent hole and is overlapped inside and outside.
In a preferred embodiment, the rear end of the speaker has a U-cup, and the inner compression cotton is disposed between the U-cup and the rear end inner wall of the sound-proof chamber.
Preferably, the U cup is provided with a fourth vent hole; by adjusting the number and the size of the fourth vent holes, the frequency response of the earphone can be effectively adjusted.
In a preferred embodiment, the anti-resonance headphone comprises a battery or PCBA board arranged between the rear shell and the sound insulation cavity, and the outer compressed cotton is arranged between the battery or PCBA board and the sound insulation cavity.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:
the utility model discloses an among the headphone, set up the sound insulation chamber in the cavity of backshell and saucer, make earphone acoustics keep controlling balanced. And, increase interior compression cotton and outer compression cotton respectively on the front and back side in the soundproof cavity, the compression produces pressure after the contact of interior compression cotton and the U cup of speaker, the compression produces the compressive force after outer compression cotton and battery or PCBA board contact, interior compression cotton presss from both sides the soundproof cavity from top to bottom with outer compression cotton jointly, the intensity in soundproof cavity can be strengthened to the compressive force that interior compression cotton and outer compression cotton produced simultaneously, the resonance in soundproof cavity is controlled, the bad problem of acoustics that the restriction of solution soundproof cavity structure brought.
Drawings
Fig. 1 is a schematic view of an overall assembly structure of an anti-resonance headphone according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of an anti-resonance headphone according to an embodiment of the present invention;
FIG. 3a is a schematic top view of the housing of the saucer;
FIG. 3b is a schematic perspective view of the housing of the saucer;
FIG. 3c is a schematic view of an assembly structure of the saucer;
FIG. 4 is a schematic view of an assembly structure among the saucer, the soundproof chamber and the rear case;
FIG. 5 is a schematic view of the positioning and assembling structure of the inner and outer compressed cotton on the sound-proof chamber;
FIG. 6 is a schematic perspective view of the rear housing;
the attached drawings are marked as follows: 1-backing plate, 11-loudspeaker positioning hole, 12-sound insulation cavity positioning groove, 13-first sound adjusting hole, 14-first sound adjusting block, 2-loudspeaker, 21-U cup, 22-fourth vent hole, 3-sound insulation cavity, 31-first vent hole, 32-wire hole, 33-second vent hole, 34-second sound adjusting block, 35-sealing element, 36-outer compression cotton positioning hole, 4-rear shell, 41-third vent hole, 5-inner compression cotton, 6-outer compression cotton, 7-battery and 8-PCBA board.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following specific embodiments and accompanying drawings, but the scope of protection and the implementation of the present invention are not limited thereto.
In the description of the specific embodiments, it should be noted that the terms "front", "back", "inside", "outside", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings or the orientation or position relationship that the product of the invention is usually placed when in use, and the terms "first", "second", etc. are used for distinguishing the description only for the convenience of describing the invention and simplifying the description, but not for indicating or implying that the structure or element that is referred to must have a specific orientation, be constructed in a specific orientation and operation, and therefore, should not be construed as limiting the invention, and should not be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The utility model discloses a prevent headphone of resonance, please see fig. 1 and fig. 2 and show, including saucer 1, speaker 2, sound-proof chamber 3, backshell 4, interior compression cotton 5, outer compression cotton 6, battery 7 and PCBA board 8.
The rear shell 4 is arranged at the rear end of the pad disc 1, and a first cavity is formed between the rear shell and the pad disc 1; the sound insulation cavity 3 is arranged at the rear end of the pad disc 1 and is positioned in the first cavity, and a second cavity is formed between the sound insulation cavity 3 and the pad disc 1; the loudspeaker 2 is arranged in the second cavity. The volume of the sound insulation cavity 3 is larger than that of the loudspeaker 2 and smaller than that of the rear shell 4, and the frequency response of the earphone can be effectively adjusted by adjusting the volume of the sound insulation cavity 3. In a preferred embodiment, the volume of the sound-insulating chamber 3 is 1.5 times the volume of the loudspeaker 2.
Specifically, referring to fig. 3a to 3c, the saucer 1 is provided with a speaker positioning hole 11 and a sound-proof cavity positioning groove 12. The speaker positioning hole 11 is provided at an intermediate position on the saucer 1, the speaker 2 is positioned and disposed on the speaker positioning hole 11, and the sound-insulating cavity positioning groove 12 is provided at the periphery of the speaker positioning hole 11 so as to surround the speaker 2. The positioning groove 12 for the sound insulation cavity is specifically an annular groove, a convex edge corresponding to the positioning groove is arranged on the edge of the rear shell 4, and the positioning groove 12 for the sound insulation cavity can clamp the edge of the rear shell 4 and the convex edge matched with the positioning groove.
Referring to fig. 4, when the saucer 1, the sound-insulating cavity 3 and the rear case 4 are assembled, the sound-insulating cavity 3 is clamped to the rear end of the saucer 1 by the positioning of the sound-insulating cavity positioning groove 12, and the rear case 4 is clamped to the saucer 1. In order to improve the overall stability of earphone cavity structure, it is optional, give sound insulation cavity 3 and saucer 1 pass through screw locking after the buckle joint, and backshell 4 passes through screw locking after the buckle joint with saucer 1.
The pad 1 is provided with a first tuning hole 13, and specifically, the first tuning hole 13 is disposed between the speaker positioning hole 11 and the sound insulation cavity positioning groove 12. By adjusting the size of the first tuning hole 13, the frequency response of the earphone can be effectively adjusted.
Further, a first tuning block 14 is attached to the outside of the first tuning hole 13, the first tuning block 14 is specifically an adjusting mesh material, and the size of the first tuning hole 13 can be indirectly adjusted by adjusting the density of the first tuning block 14, so that the acoustic frequency response of the earphone is adjusted.
Referring again to fig. 1 and 2, the inner compressed cotton 5 is disposed between the speaker 2 and the soundproof cavity 3, and the outer compressed cotton 6 is disposed between the soundproof cavity 3 and the rear case 4. And by the mutual action between speaker 2, sound insulation chamber 3 and the backshell 4, keep compression state between interior compression cotton 5 and the outer compression cotton 6, produce the compression effect to sound insulation chamber 3, strengthen sound insulation chamber 3's intensity, control sound insulation chamber 3's resonance, solve the bad problem of acoustics that sound insulation chamber 3 structural constraint brought.
Specifically, as shown in fig. 5, a compressed cotton positioning hole is disposed at the rear end of the sound-proof cavity 3, and the compressed cotton positioning hole includes an inner compressed cotton positioning hole and an outer compressed cotton positioning hole 36. The inner compression cotton positioning hole is formed in the inner wall of the rear end of the sound insulation cavity 3, and the outer compression cotton positioning hole is formed in the rear end of the sound insulation cavity 3.
And the inner compression cotton positioning hole corresponds to the outer compression cotton positioning hole, and a reinforcing rib for connection is arranged in the middle of the inner compression cotton positioning hole. Wherein, interior compression cotton 5 location sets up in the cotton locating hole of interior compression, after soundproof cavity 3 and saucer 1 assembly, interior compression cotton 5 can keep compression state with the speaker, produce compressive force, with speaker 2 produces the compression effect, and through adjusting the thickness of interior compression cotton 5 can adjust the compressive force of interior compression cotton 5, through adjusting the frequency response of the adjustable earphone of density of interior compression cotton 5.
The loudspeaker 2 in this embodiment is an electrodynamic loudspeaker, and the U cup 21 is disposed on the loudspeaker 2, and the U cup 21 directly contacts with the inner compression cotton 5. In addition, referring to fig. 1 again, the U-cup 21 of the speaker 2 is provided with the fourth vent hole 22, and the frequency response of the earphone can be effectively adjusted by adjusting the aperture size or the number of the fourth vent holes 22.
The outer compression cotton 6 is positioned in the outer compression cotton positioning hole 36 and generates a compression effect with the rear shell 4. Specifically, battery 7 or PCBA board 8 set up between backshell 4 and outer compression cotton 6, after the saucer 1, give sound insulation chamber 3 and backshell 4 combination, battery 7 or PCBA board 8 in the cavity of outer compression cotton 6 and backshell 4 keep the compression state, produce compressive force, and outer compression cotton 6 keeps the contact with battery 7 or PCBA board 7 and keeps the compression to produce compressive force, through the adjustment outer compression cotton 6's thickness is adjustable outer compression cotton 6's compressive force, through the adjustment the frequency response of the adjustable earphone of outer compression cotton 6's density.
After the assembly of the components including the saucer 1, the speaker 2, the sound-insulating chamber 3, and the rear case 4 is completed, the sound-insulating chamber 3 is clamped up and down by the inner compression cotton 5 and the outer compression cotton 6. In this way, the strength of the sound-insulating chamber 3 is enhanced by the compressive force generated by the inner compression wool 5 and the outer compression wool 6, and the resonance of the sound-insulating chamber 3 is controlled.
Furthermore, the outside of the compressed cotton positioning hole of the sound insulation cavity 3 is provided with first vent holes 31, the number and the size of the first vent holes 31 are not limited, and the adjustment can be carried out according to the frequency response requirement of the earphone. And, still be equipped with a wire hole 32 on sound-proof cavity 3, the position of wire hole 32 can be adjusted according to the direction of being qualified for the next round of competitions for the electric wire pierces through, makes speaker 2 in sound-proof cavity 3 be connected with external power source through the electric wire, and sealed with glue, improves overall structure's uniformity and stability.
Referring to fig. 1 and 4 again, the side wall of the sound-insulating chamber 3 is opened with a second vent hole 33, and the side wall of the rear case 4 is opened with a third vent hole 41. The second vent 33 and the third vent 41 are overlapped and correspond to each other, and the sizes of the second vent 33 and the third vent 41 can be adjusted according to the acoustic frequency response.
Further, as shown in fig. 6, the second vent hole 33 is specifically located at the side end of the sound-proof chamber 3, the third vent hole 41 is located on the side wall of the rear shell 4, and after the components are assembled, the second vent hole 33 and the third vent hole 41 are overlapped.
Referring to fig. 5 again, a second tuning block 34 and a sealing member 35 are provided in the second vent hole 33. Specifically, the second tuning block 34 is a tuning net, and the ventilation damping of the second ventilation hole 33 is changed by adjusting the ventilation density of the second tuning block 34, so that the audio frequency response of the earphone can be effectively adjusted; by adjusting the thickness of the sealing member 35, the sealability of the second vent hole 33 and the third vent hole 41 after the fitting and overlapping is ensured.
The above embodiments are merely preferred embodiments of the present invention, and are only intended to describe the technical solutions of the present invention in further detail, but the above descriptions are exemplary, not exhaustive, and not limited to the disclosed embodiments, the protection scope and implementation manner of the present invention are not limited thereto, and any changes, combinations, deletions, substitutions or modifications that do not depart from the spirit and principle of the present invention are all included in the protection scope of the present invention.
Claims (10)
1. An anti-resonance headphone is characterized by comprising a pad, a loudspeaker, a sound insulation cavity and a rear shell;
the rear shell is arranged at the rear end of the pad disc, and a first cavity is formed between the rear shell and the pad disc; the sound insulation cavity is arranged at the rear end of the pad disc and is positioned in the first cavity, and a second cavity is formed between the sound insulation cavity and the pad disc; the loudspeaker is arranged in the second cavity, and internal compression cotton is arranged between the loudspeaker and the sound insulation cavity; and outer compression cotton is arranged between the sound insulation cavity and the rear shell.
2. An anti-resonance headphone according to claim 1, wherein the saucer is provided with a speaker positioning hole and a soundproof cavity positioning groove.
3. The anti-resonance headphone according to claim 2, wherein a first tuning hole is provided between the speaker positioning hole and the soundproof cavity positioning groove; and a first tuning block is arranged on the first tuning hole.
4. The anti-resonance headphone according to claim 1, wherein the inner wall of the rear end of the sound insulation cavity is provided with an inner compression cotton positioning hole.
5. The anti-resonance headphone according to claim 1, wherein the outer wall of the rear end of the sound insulation cavity is provided with an outer compression cotton positioning hole.
6. The anti-resonance headphone according to claim 5, wherein the outer circumference of the outer compression cotton positioning hole is provided with a first vent hole and a wire hole.
7. The anti-resonance headphone according to claim 1, wherein the side wall of the sound insulation cavity is provided with a second vent hole; and a sealing piece and a second tuning block are arranged on the second vent hole.
8. The anti-resonance headphone according to claim 7, wherein the side wall of the rear housing is provided with a third vent hole, and the second vent hole corresponds to the third vent hole.
9. The anti-resonance headphone according to claim 1, wherein the rear end of the speaker has a U-cup, and the U-cup is provided with a fourth vent hole; and the inner compression cotton is arranged between the U cup and the inner wall of the rear end of the sound insulation cavity.
10. An anti-resonance headphone according to any one of claims 1 to 9, wherein a battery or PCBA is provided between the rear housing and the sound-proof chamber, and the outer compressed cotton is provided between the battery or PCBA and the sound-proof chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026347.5U CN214544750U (en) | 2021-05-13 | 2021-05-13 | Anti-resonance headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026347.5U CN214544750U (en) | 2021-05-13 | 2021-05-13 | Anti-resonance headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214544750U true CN214544750U (en) | 2021-10-29 |
Family
ID=78284294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121026347.5U Active CN214544750U (en) | 2021-05-13 | 2021-05-13 | Anti-resonance headset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214544750U (en) |
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2021
- 2021-05-13 CN CN202121026347.5U patent/CN214544750U/en active Active
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