CN103108267A - Composite-structure ear cap - Google Patents
Composite-structure ear cap Download PDFInfo
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- CN103108267A CN103108267A CN2013100157268A CN201310015726A CN103108267A CN 103108267 A CN103108267 A CN 103108267A CN 2013100157268 A CN2013100157268 A CN 2013100157268A CN 201310015726 A CN201310015726 A CN 201310015726A CN 103108267 A CN103108267 A CN 103108267A
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- sound insulation
- airtight
- ear muff
- sound
- insulation cotton
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Abstract
The invention discloses a composite-structure ear cap which is composed of sound isolation sponge and a cloth cover mounted outside the sound isolation sponge, wherein the sound isolation sponge is composed of breathable sound isolation sponge and airtight sound isolation sponge. The structural design has two advantages that a wave exists in a sound impedance characteristic on the travel path through which noise enters into the ear cap from outside, the reflection of a sound is increased through the wave of the sound impedance characteristic, thus noise which enters into the ear cap is reduced, therefore passive sound-isolated property in low and medium frequency band is improved and passive noise reduction quantity is improved, and an airtight spongy layer is added in a sponge mat structure, and thus the complete sponge structure has an airtight property. The cloth cover can be mounted on the ear cap directly when ear cap fabric needs to use the cloth cover and no additional layer of leather cover is needed inside the cloth cover, and thus technology is reduced and cost is saved.
Description
Technical field
The present invention relates to the earphone technical field, more specifically, relate to a kind of composite construction ear muff.
Background technology
Headphone all is equipped with ear muff on the loudspeaker protecgulum, the interference that earphone is played sound for reducing outside noise.For headphone, earphone is generally reasonable at the sound insulation property of high band, in the medium and low frequency section, especially the passive noise reduction of low-frequency range is often not ideal enough, needs a kind of novel ear muff of design to improve headphone in the passive noise reduction of medium and low frequency section.
The ear muff fabric of earphone has two types, leather sheath and cloth cover, and leather sheath is generally air-locked and the cloth cover is to breathe freely.In the situation that many earphones require to use in appearance the cloth cover, in order to allow ear muff that sound insulation property is preferably arranged, need to increase like this technique and cost at the inner air-locked leather sheath of one deck that increases of cloth cover, need the ear muff of a kind of new structure of design to solve this problem.
Summary of the invention
In view of the above problems, the objective of the invention is to design a kind of headphone that can improve in the passive noise reduction of medium and low frequency section, can reduce production technology, cost-effective a kind of composite construction ear muff simultaneously.
For solving the problems of the technologies described above, the present invention by the following technical solutions: a kind of composite construction ear muff, the cloth cover that comprises sound insulation cotton and be arranged on described sound insulation cotton outside consists of, wherein, described sound insulation cotton is comprised of the tender airtight sound insulation cotton of sound insulation.
A kind of preferred technical scheme, described sound insulation continuous centre position are provided with groove, and described airtight sound insulation cotton is arranged in the continuous intermediate groove of described sound insulation.
A kind of preferred technical scheme is provided with the groove more than two in the middle of described sound insulation silk floss, described airtight sound insulation cotton shape is complementary with described groove and arranges and corresponding being arranged in described each groove.
Preferred version further, the described airtight sound insulation cotton that is complementary with continuous each groove of the described sound insulation Integral design that is connected to each other.
A kind of preferred technical scheme, described sound insulation silk floss and described airtight sound insulation cotton upper surface adopt circular arc to be combined.
A kind of preferred technical scheme, described sound insulation is continuous is ventilative foam-rubber cushion, described airtight sound insulation cotton is airtight foam-rubber cushion.
Utilize above-mentionedly according to composite construction ear muff of the present invention, due to composite construction ear muff of the present invention, the cloth cover that comprises sound insulation cotton and be arranged on described sound insulation cotton outside consists of, and wherein, described sound insulation cotton is comprised of the tender airtight sound insulation cotton of sound insulation.Structural design has two advantages like this, the one, enter from the external world at noise that on the propagation path of ear muff inside, there is sudden change in the acoustic impedance characteristic, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise decrease that enters into ear muff inside, so just can improve ear muff at the passive sound insulation property of low and medium frequency section, improve the passive noise reduction of earphone; The 2nd, increase air-locked spongy layer in the foam-rubber cushion structure after, whole sponge structure has just had air-locked character, can directly fill the cloth cover when the ear muff fabric requires to use the cloth cover, has added one deck leather sheath and need not to overlap inside at cloth again, can reduce technique like this, save cost.
Description of drawings
To be the present invention be installed to generalized section on the earphone protecgulum with ear muff to Fig. 1.
Fig. 2 is the partial enlarged drawing that removes the cloth cover in Fig. 1.
Fig. 3 is the ear muff partial cutaway schematic of another structure of the present invention.
In figure: the 1-protecgulum, the 2-sound insulation is continuous, the airtight sound insulation cotton of 21-, 3-cloth cover.
Embodiment
Below with reference to accompanying drawing, specific embodiments of the invention are described in detail.
Embodiment one: as shown in Figure 1 and Figure 2, a kind of composite construction ear muff comprises cloth cover 3 formations that are arranged on the sound insulation cotton on protecgulum 1 and are arranged on described sound insulation cotton outside, and wherein, described sound insulation cotton is comprised of sound insulation continuous 2 and airtight sound insulation cotton 21.This kind design makes noise enter from the external world that on the propagation path of ear muff inside, there is sudden change in the acoustic impedance characteristic, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise decrease that enters into ear muff inside, so just can improve ear muff at the passive sound insulation property of low and medium frequency section, improve the passive noise reduction of earphone.
As realizing a kind of preferred technical scheme of the present invention, described sound insulation continuous 2 centre positions are provided with a groove, and described airtight sound insulation cotton 21 is complementary and is arranged in described groove with described groove, and simplicity of design is convenient to realize.
Described sound insulation continuous 2 in the present embodiment adopts circular arc to be combined with described airtight sound insulation cotton 21 upper surfaces, more is beneficial to like this sealing sound insulation after compression.
Described sound insulation continuous 2 is ventilative foam-rubber cushion in the present embodiment, described airtight sound insulation cotton 21 is density and complete air-locked foam-rubber cushion different from ventilative foam-rubber cushion, enter from the external world at noise that on the propagation path of ear muff inside, there is sudden change in the acoustic impedance characteristic, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise decrease that enters into ear muff inside, so just can improve ear muff at the passive sound insulation property of low and medium frequency section, improve the passive noise reduction of earphone.
Embodiment two: as shown in Figure 3, the difference of the present embodiment and embodiment one is, be provided with two grooves in the middle of described sound insulation continuous 2, described airtight sound insulation cotton 21 shapes are complementary and corresponding being arranged in described each groove with described groove, and with described airtight sound insulation cotton 21 upper surfaces that continuous 2 each grooves of described sound insulation the are complementary Integral design that is connected to each other, be convenient to install, save labour cost.Certainly can be also to be provided with many grooves in the middle of sound insulation continuous 2 in the present embodiment, and the shape that described airtight sound insulation cotton 21 is designed to be complementary with it.
As realizing that the present invention has a kind of preferred technical scheme, described sound insulation continuous 2 adopts respectively circular arc to be combined with described airtight sound insulation cotton 21 upper surfaces, more is beneficial to like this sealing sound insulation after compression.
Described sound insulation continuous 2 is ventilative foam-rubber cushion in the present embodiment, described airtight sound insulation cotton 21 is density and fully air-locked airtight foam-rubber cushion different from ventilative foam-rubber cushion 2, enter from the external world at noise that on the propagation path of ear muff inside, there is sudden change in the acoustic impedance characteristic, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise decrease that enters into ear muff inside, so just can improve ear muff at the passive sound insulation property of low and medium frequency section, improve the passive noise reduction of earphone.
Utilize above-mentionedly according to composite construction ear muff of the present invention, due to composite construction ear muff of the present invention, the cloth cover that comprises sound insulation cotton and be arranged on described sound insulation cotton outside consists of, and wherein, described sound insulation cotton is comprised of the tender airtight sound insulation cotton of sound insulation.Structural design has two advantages like this, the one, enter from the external world at noise that on the propagation path of ear muff inside, there is sudden change in the acoustic impedance characteristic, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise decrease that enters into ear muff inside, so just can improve ear muff at the passive sound insulation property of low and medium frequency section, improve the passive noise reduction of earphone; The 2nd, increase air-locked spongy layer in the foam-rubber cushion structure after, whole sponge structure has just had air-locked character, can directly fill the cloth cover when the ear muff fabric requires to use the cloth cover, has added one deck leather sheath and need not to overlap inside at cloth again, can reduce technique like this, save cost.
The foam-rubber cushion of composite construction but is not limited in Fig. 2, Fig. 3 complex form as shown in Figure 2 and Figure 3, can be also the compound of sandwich construction, and similar composite construction is all in the protection range of this patent.
Above demonstration and described basic principle of the present invention and technical characteristics; the technical staff of the industry should understand; the present invention is not restricted to the described embodiments; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (6)
1. a composite construction ear muff, comprise sound insulation cotton and the cloth cover formation that is arranged on described sound insulation cotton outside, and it is characterized in that: described sound insulation cotton is comprised of the tender airtight sound insulation cotton of sound insulation.
2. composite construction ear muff as claimed in claim 1 is characterized in that: described sound insulation continuous centre position is provided with groove, and described airtight sound insulation cotton is arranged in the continuous intermediate groove of described sound insulation.
3. composite construction ear muff as claimed in claim 1 is characterized in that: be provided with the groove more than two in the middle of described sound insulation silk floss, described airtight sound insulation cotton shape is complementary with described groove also corresponding being arranged in described each groove is set.
4. composite construction ear muff as claimed in claim 3 is characterized in that: the described airtight sound insulation cotton that is complementary with continuous each groove of the described sound insulation Integral design that is connected to each other.
5. the described composite construction ear muff of claim as arbitrary in claim 1-4 is characterized in that: the continuous and described airtight sound insulation cotton upper surface employing circular arc of described sound insulation is combined.
6. the described composite construction ear muff of claim as arbitrary in claim 1-4 is characterized in that: described sound insulation is continuous is ventilative foam-rubber cushion, and described airtight sound insulation cotton is airtight foam-rubber cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100157268A CN103108267A (en) | 2013-01-16 | 2013-01-16 | Composite-structure ear cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100157268A CN103108267A (en) | 2013-01-16 | 2013-01-16 | Composite-structure ear cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103108267A true CN103108267A (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100157268A Pending CN103108267A (en) | 2013-01-16 | 2013-01-16 | Composite-structure ear cap |
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| CN (1) | CN103108267A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3188494A1 (en) * | 2015-12-29 | 2017-07-05 | GN Netcom A/S | A headphone with two ear cushions of different hardness |
| CN109246511A (en) * | 2018-09-28 | 2019-01-18 | 出门问问信息科技有限公司 | earplug |
| CN109246510A (en) * | 2018-09-28 | 2019-01-18 | 出门问问信息科技有限公司 | Earphone |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993074A (en) * | 1988-04-13 | 1991-02-12 | Carroll Robert J | Earphone spacer |
| US20050273910A1 (en) * | 2002-10-14 | 2005-12-15 | Ray Cozens | Cushions |
| CN101198193A (en) * | 2006-11-10 | 2008-06-11 | 索尼株式会社 | Headphone and ear pad |
| US20100119076A1 (en) * | 2008-11-12 | 2010-05-13 | The Timao Group, Inc. | Hearing Protection Device Ear Seal With Acoustic Barrier |
| US20110002475A1 (en) * | 2009-07-06 | 2011-01-06 | Kabushiki Kaisha Audio-Technica | Earmuff and headphone |
| CN102282864A (en) * | 2009-02-04 | 2011-12-14 | 欧力天工股份有限公司 | Noise canceling headphones |
| JP2012169825A (en) * | 2011-02-14 | 2012-09-06 | Audio Technica Corp | Headphone |
| CN203086675U (en) * | 2013-01-16 | 2013-07-24 | 歌尔声学股份有限公司 | Composite structure earmuffs |
-
2013
- 2013-01-16 CN CN2013100157268A patent/CN103108267A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993074A (en) * | 1988-04-13 | 1991-02-12 | Carroll Robert J | Earphone spacer |
| US20050273910A1 (en) * | 2002-10-14 | 2005-12-15 | Ray Cozens | Cushions |
| CN101198193A (en) * | 2006-11-10 | 2008-06-11 | 索尼株式会社 | Headphone and ear pad |
| US20100119076A1 (en) * | 2008-11-12 | 2010-05-13 | The Timao Group, Inc. | Hearing Protection Device Ear Seal With Acoustic Barrier |
| CN102282864A (en) * | 2009-02-04 | 2011-12-14 | 欧力天工股份有限公司 | Noise canceling headphones |
| US20110002475A1 (en) * | 2009-07-06 | 2011-01-06 | Kabushiki Kaisha Audio-Technica | Earmuff and headphone |
| JP2012169825A (en) * | 2011-02-14 | 2012-09-06 | Audio Technica Corp | Headphone |
| CN203086675U (en) * | 2013-01-16 | 2013-07-24 | 歌尔声学股份有限公司 | Composite structure earmuffs |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3188494A1 (en) * | 2015-12-29 | 2017-07-05 | GN Netcom A/S | A headphone with two ear cushions of different hardness |
| CN109246511A (en) * | 2018-09-28 | 2019-01-18 | 出门问问信息科技有限公司 | earplug |
| CN109246510A (en) * | 2018-09-28 | 2019-01-18 | 出门问问信息科技有限公司 | Earphone |
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Application publication date: 20130515 |