CN203086675U - Composite structure earmuffs - Google Patents
Composite structure earmuffs Download PDFInfo
- Publication number
- CN203086675U CN203086675U CN 201320022433 CN201320022433U CN203086675U CN 203086675 U CN203086675 U CN 203086675U CN 201320022433 CN201320022433 CN 201320022433 CN 201320022433 U CN201320022433 U CN 201320022433U CN 203086675 U CN203086675 U CN 203086675U
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- sound insulation
- continuous
- airtight
- earmuffs
- ear muff
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Abstract
The utility model discloses composite structure earmuffs. The composite structure earmuffs comprise soundproof sponges and cloth covers which are arranged outside the soundproof sponges. Each soundproof sponge is composed of a venting soundproof sponge and an airtight soundproof sponge. The structure design has the advantages that an acoustic impedance characteristic is mutational on a propagation path through which noises come into the earmuffs from the outside; the mutation of the impedance characteristic can increase the reflection of a sound wave, so that noises coming into the earmuffs are reduced; the passive soundproof performance of the earmuffs on low and medium frequencies can be improved, and the passive noise reduction of headphones can be improved; after an airtight sponge layer is added in each sponge pad structure, the whole sponge structure is airtight; according to the fabric requirement of the earmuffs, the cloth covers can be directly loaded when used, and adding a layer of leather cover in each cloth cover is unnecessary; the processes are reduced; and the cost is saved.
Description
Technical field
The utility model relates to the earphone technical field, more specifically, relates to a kind of composite construction ear muff.
Background technology
Headphone all is equipped with ear muff on the loudspeaker protecgulum, be used to reduce the interference that outside noise plays sound to earphone.For headphone, earphone generally is 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 the passive noise reduction of headphone in the medium and low frequency section.
The ear muff lining of earphone has two types in leather sheath and cloth cover, and leather sheath is generally air-locked and the cloth cover is to breathe freely.Require to use in appearance under the situation of cloth cover at many earphones, in order to allow ear muff that sound insulation property is preferably arranged, need increase technology and cost like this 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.
The utility model content
In view of the above problems, the purpose of this utility model is a kind of passive noise reduction that can improve headphone in the medium and low frequency section of design, can reduce production technology, cost-effective a kind of composite construction ear muff simultaneously.
For solving the problems of the technologies described above, the utility model by the following technical solutions: a kind of composite construction ear muff, comprise that the tender continuous outside cloth cover of described sound insulation that is installed in of sound insulation constitutes, wherein, described sound insulation silk floss is by the tender airtight sound insulation of sound insulation continuous composition.
A kind of optimized technical scheme, the continuous centre position of described sound insulation is provided with groove, and described airtight sound insulation silk floss is arranged in the continuous intermediate groove of described sound insulation.
A kind of optimized technical scheme is provided with the groove more than two in the middle of the described sound insulation silk floss, the continuous shape of described airtight sound insulation is complementary with described groove and is provided with and corresponding being arranged in described each groove.
The one design that is connected to each other of preferred version further, the described airtight sound insulation silk floss that is complementary with continuous each groove of described sound insulation.
A kind of optimized technical scheme, the continuous upper surface of the continuous and described airtight sound insulation of described sound insulation adopts circular arc to combine.
A kind of optimized technical scheme, described sound insulation is continuous to be ventilative foam-rubber cushion, described airtight sound insulation silk floss is airtight foam-rubber cushion.
Utilize above-mentionedly according to composite construction ear muff described in the utility model, because the utility model composite construction ear muff, comprise that the tender continuous outside cloth cover of described sound insulation that is installed in of sound insulation constitutes, wherein, described sound insulation silk floss is by the tender airtight sound insulation of sound insulation continuous composition.Structural design has two advantages like this, the one, enter from the external world at noise that there is sudden change in the acoustic impedance characteristic on the propagation path of ear muff inside, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise that enters into ear muff inside reduce, so just can improve the passive sound insulation property of ear muff, improve the passive noise reduction of earphone in the low and medium frequency section; The 2nd, in the foam-rubber cushion structure, increase air-locked spongy layer after, whole sponge structure has just had air-locked character, can directly adorn the cloth cover when the ear muff lining requires to use the cloth cover, and need not to have added one deck leather sheath again in cloth cover inside, can reduce technology like this, save cost.
Description of drawings
To be the utility model 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 among Fig. 1.
Fig. 3 is the ear muff partial cutaway schematic of another structure of the utility model.
Among the figure: 1-protecgulum, 2-sound insulation silk floss, the airtight sound insulation silk floss of 21-, 3-cloth cover.
Embodiment
Below with reference to accompanying drawing specific embodiment of the utility model is described in detail.
Embodiment one: as shown in Figure 1 and Figure 2, a kind of composite construction ear muff comprises that the sound insulation that is installed on the protecgulum 1 is continuous and is installed in continuous outside cloth cover 3 formations of described sound insulation that wherein, described sound insulation silk floss is made up of sound insulation continuous 2 and airtight sound insulation continuous 21.This kind design makes noise enter from the external world that there is sudden change in the acoustic impedance characteristic on the propagation path of ear muff inside, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise that enters into ear muff inside reduce, so just can improve the passive sound insulation property of ear muff, improve the passive noise reduction of earphone in the low and medium frequency section.
As realizing a kind of optimized technical scheme of the utility model, continuous 2 centre positions of described sound insulation are provided with a groove, and described airtight sound insulation continuous 21 and described groove are complementary and are installed in the described groove, and simplicity of design is convenient to realize.
Described sound insulation continuous 2 in the present embodiment adopts circular arc to combine with continuous 21 upper surfaces of described airtight sound insulation, is beneficial to sealing sound insulation like this after the compression more.
Described in the present embodiment sound insulation continuous 2 is ventilative foam-rubber cushion, described airtight sound insulation continuous 21 is a density and complete airtight foam-rubber cushion different with ventilative foam-rubber cushion, enter from the external world at noise that there is sudden change in the acoustic impedance characteristic on the propagation path of ear muff inside, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise that enters into ear muff inside reduce, so just can improve the passive sound insulation property of ear muff, improve the passive noise reduction of earphone in the low and medium frequency section.
Embodiment two: as shown in Figure 3, the difference of present embodiment and embodiment one is, in the middle of described sound insulation continuous 2, be provided with two grooves, continuous 21 shapes of described airtight sound insulation are complementary and corresponding being arranged in described each groove with described groove, and, be convenient to install, save labour cost with the one design that is connected to each other of continuous 21 upper surfaces of described airtight sound insulation that continuous 2 each groove of described sound insulation are complementary.Certainly also can be to be provided with many grooves in the middle of the sound insulation continuous 2 in the present embodiment, and the shape that described airtight sound insulation silk floss 21 is designed to be complementary with it.
As realizing that the utility model has a kind of optimized technical scheme, described sound insulation continuous 2 adopts circular arc to combine respectively with continuous 21 upper surfaces of described airtight sound insulation, is beneficial to sealing sound insulation like this after the compression more.
Described in the present embodiment sound insulation continuous 2 is ventilative foam-rubber cushion, described airtight sound insulation continuous 21 is density and ventilative foam-rubber cushion 2 different and complete air-locked airtight foam-rubber cushions, enter from the external world at noise that there is sudden change in the acoustic impedance characteristic on the propagation path of ear muff inside, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise that enters into ear muff inside reduce, so just can improve the passive sound insulation property of ear muff, improve the passive noise reduction of earphone in the low and medium frequency section.
Utilize above-mentionedly according to composite construction ear muff described in the utility model, because the utility model composite construction ear muff, comprise that the tender continuous outside cloth cover of described sound insulation that is installed in of sound insulation constitutes, wherein, described sound insulation silk floss is by the tender airtight sound insulation of sound insulation continuous composition.Structural design has two advantages like this, the one, enter from the external world at noise that there is sudden change in the acoustic impedance characteristic on the propagation path of ear muff inside, the sudden change of this impedance operator can increase the reflection of sound wave, make the noise that enters into ear muff inside reduce, so just can improve the passive sound insulation property of ear muff, improve the passive noise reduction of earphone in the low and medium frequency section; The 2nd, in the foam-rubber cushion structure, increase air-locked spongy layer after, whole sponge structure has just had air-locked character, can directly adorn the cloth cover when the ear muff lining requires to use the cloth cover, and need not to have added one deck leather sheath again in cloth cover inside, can reduce technology like this, save cost.
The foam-rubber cushion of composite construction such as Fig. 2, shown in Figure 3, but be not limited in Fig. 2, Fig. 3 complex form, also can be the compound of sandwich construction, similar composite construction is all in the protection range of this patent.
More than show and described basic principle of the present utility model and major technique feature; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.
Claims (6)
1. a composite construction ear muff comprises that the tender continuous outside cloth cover of described sound insulation that is installed in of sound insulation constitutes, and it is characterized in that: described sound insulation silk floss is made up of the tender airtight sound insulation silk floss of sound insulation.
2. composite construction ear muff as claimed in claim 1 is characterized in that: the continuous centre position of described sound insulation is provided with groove, and described airtight sound insulation silk floss 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 the described sound insulation silk floss, the continuous shape of described airtight sound insulation is complementary with described groove and is provided with and corresponding being arranged in described each groove.
4. composite construction ear muff as claimed in claim 3 is characterized in that: the described airtight sound insulation silk floss that is complementary with continuous each groove of the described sound insulation one design that is connected to each other.
5. as the described composite construction ear muff of the arbitrary claim of claim 1-4, it is characterized in that: the continuous upper surface of the continuous and described airtight sound insulation of described sound insulation adopts circular arc to combine.
6. as the described composite construction ear muff of the arbitrary claim of claim 1-4, it is characterized in that: described sound insulation is continuous to be ventilative foam-rubber cushion, and described airtight sound insulation silk floss is airtight foam-rubber cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022433 CN203086675U (en) | 2013-01-16 | 2013-01-16 | Composite structure earmuffs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022433 CN203086675U (en) | 2013-01-16 | 2013-01-16 | Composite structure earmuffs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203086675U true CN203086675U (en) | 2013-07-24 |
Family
ID=48832475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320022433 Expired - Lifetime CN203086675U (en) | 2013-01-16 | 2013-01-16 | Composite structure earmuffs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203086675U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108267A (en) * | 2013-01-16 | 2013-05-15 | 歌尔声学股份有限公司 | Composite-structure ear cap |
| CN105516842A (en) * | 2014-09-24 | 2016-04-20 | 美律电子(深圳)有限公司 | Earmuff with composite cushion |
| CN106982401A (en) * | 2017-04-10 | 2017-07-25 | 东莞市穗崴皮具有限公司 | Improve the earphone pad foam and its earphone pad of closing property of sealing |
| WO2022073735A1 (en) * | 2020-10-09 | 2022-04-14 | Gn Audio A/S | On-the-ear ear cushion with multiple foams having different properties |
| US11582548B2 (en) | 2017-11-21 | 2023-02-14 | 3M Innovative Properties Company | Cushion for a hearing protector or audio headset |
-
2013
- 2013-01-16 CN CN 201320022433 patent/CN203086675U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108267A (en) * | 2013-01-16 | 2013-05-15 | 歌尔声学股份有限公司 | Composite-structure ear cap |
| CN105516842A (en) * | 2014-09-24 | 2016-04-20 | 美律电子(深圳)有限公司 | Earmuff with composite cushion |
| CN105516842B (en) * | 2014-09-24 | 2019-02-15 | 美律电子(深圳)有限公司 | Earmuff with composite cushion |
| CN106982401A (en) * | 2017-04-10 | 2017-07-25 | 东莞市穗崴皮具有限公司 | Improve the earphone pad foam and its earphone pad of closing property of sealing |
| US11582548B2 (en) | 2017-11-21 | 2023-02-14 | 3M Innovative Properties Company | Cushion for a hearing protector or audio headset |
| WO2022073735A1 (en) * | 2020-10-09 | 2022-04-14 | Gn Audio A/S | On-the-ear ear cushion with multiple foams having different properties |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |