• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An earcup for a hearing protection unit, comprising partition wall (1) for separating a first part of the earcup, facing the wearer, from a second part of the earcup, facing the surroundings. Further, the earcup comprises a speaker (2) located in the first part of the earcup and an electric connector (3) located in the second part of the earcup. The speaker (2) is mounted in a speaker holder (4), having a first cavity (44) facing the ear of the wearer, to seal of a resonance space (8), said speaker holder (4) in turn being arranged on the partition wall (1) above a first aperture (13) in the partition wall (1). Further, the speaker holder (4) comprises a membrane (42) above the first aperture (13). The speaker (2) and the electric connector (3) are connected by an electric cable (31), running freely through the first aperture (13) in the partition wall (1), or through a second separate aperture (131) in the partition wall (1), said speaker holder (4) sealingly engaging with the electric cable (31).
    公开号:SE1250675A1
    申请号:SE1250675
    申请日:2012-06-21
    公开日:2013-12-22
    发明作者:Joakim Ohlander
    申请人:Hellberg Safety Ab；
    IPC主号:
    专利说明:

    TECHNICAL FIELD OF THE INVENTION The present invention relates to a hearing cover, with the space of an inner cover and the space of an outer cover, separated by a partition, for a hearing cover, the space of the inner cover being provided with a loudspeaker. Above all, the invention intends to improve the sound quality reproduced by the loudspeaker.
    Background Horsel protection is used in environments where noise levels are high. Normally, the earmuffs comprise two earmuffs and a device for attaching the earmuffs to the wearer's head, so that the earmuffs are positioned above the wearer's concern. Normally, headphone jacks can be provided with active elements, so that the passive sound reduction function is combined with the function of actively reproducing sound inside the headphone cap to let the user hear the reproduced sound. Such an active element usually includes an electrical device which includes a loudspeaker.
    The active element can include various functions. One variety may, for example, include a radio receiver and the electronic circuits required to reproduce the sound received by the radio receiver through the loudspeaker. Another variety may be designed so that it can reproduce ambient sounds frail hearing loss. In this case, the hearing protection is usually equipped with a microphone connected to the electronic device. Another type can be communication with external devices connected to the hearing protection via power cables and / or wirelessly via Bluetooth.
    Electronic devices equipped with a loudspeaker and a microphone have the function of being able to receive the sound from the microphone and convert it in such a way that it is reproduced by the loudspeaker in the inner housing at a level which is consistent with bile safety standards and suitable for the wearer. Furthermore, the electronic circuit of the electronic unit normally includes circuits for vaporizing frequencies and / or sound levels which are particularly disturbing to the human ear to the shape of the frequency range within which ordinary speech is located. Through such an arrangement, the bearer of an active hearing protection can talk to another person in a noisy environment without having to remove the hearing protection and without risking any hearing damage.
    Obviously, the reproduced ambient sound will be different from the actual ambient sound, since some frequencies are damped. Furthermore, the reproduction of the sound via the microphone-speaker arrangement will not be perfect. Salunda 2, various feeds have been made in the field of technology to provide a good reproduction of ambient sound in the headphone jacks provided with active sound reproducing arrangements. WO 2008/100197 describes a headphone cover for a headphone cover, wherein the headphone cover has a noise-damping area and at least one electronic unit with at least one loudspeaker. Furthermore, the horsel hood has a resonant space arranged to function as a resonant plate for sound emitted from the loudspeaker. By providing a resonant space, the speaker is said to give a bitter bass sound.
    WO 2006/118514 describes a horsel cap for a horsel protection unit which comprises an inner cap part, which delimits a noise-evaporating space of water towards the user. The Horsel hood further has an outer hood part to accommodate electronics and / or a power source. The inner k'ap part and the outer k'ap part are separated by a partition which is made in one piece together with the inner cap part. The separator cradle is substantially closed, with the exception of an opening in which a fixing portion on a bracket is arranged. The fixing part is integrated with conductors for a loudspeaker.
    The console also has a shield plate that extends along the periphery of the speaker.
    The shield plate is said to improve the sound reproduction in lower frequency ranges. In this context, it is important to note that the shielding plate does not shield or possibly more or less close a volume on its back, which can reduce the size of the effective noise-vaporizing space. Although shielding plates are said to improve the sound reproduction of the solution provided, it is a space-consuming solution. Furthermore, the baffle can be uncomfortable for people with outstanding anxiety.
    WO 2009/139682 describes a hearing protection with two closed sleeves that close taken against the barber's head, so that a closed space is formed in each sleeve and around the user's Ora. A loudspeaker is arranged internally in the socket and has a diaphragm one side of which is water against the user's Ora, and the opposite side is water against the closed space formed by the diaphragm and an enclosure. To improve the bazaar presentation when listening to music interior of the enclosure, via at least one hall or a channel, in river communication with the surroundings outside the closed space of the sleeve. Even if the bazaar delivery is improved, the presence of a hallway or a canal can mean that ambient noise can "paint" into the noise-evaporating space. SUMMARY OF THE INVENTION Accordingly, the present invention seeks to mitigate, alleviate, eliminate or circumvent one or more of the above-identified shortcomings in the art and disadvantages, to separate a first part of the horsel hood, water against the bar, frail a second part of the horsel hood, water against the surroundings; a loudspeaker mounted in the first part of the headband; wherein the loudspeaker is mounted in a loudspeaker holder, with a first cavity of water against the bar, to close a resonant space; van in nananda loudspeaker holder in turn is mounted in the partition above a first aperture in the partition; wherein the loudspeaker holder comprises a diaphragm extending transversely across the first aperture; and an electrical connection arranged in the second part of the hearing hood, wherein said loudspeaker and said electrical connection are connected by an electrical cable.
    Additional advantageous features of the invention are defined in the dependent claims. In addition, advantageous features of the invention are developed in the embodiments described herein.
    Brief Description of the Drawings The invention will be described below in stone detail, with reference to a preferred embodiment thereof, shown in the accompanying drawings, in which.
    Fig. 1 shows the side of the horsel cap, according to an embodiment, which is intended to be water towards the bar, without the loudspeaker; FIG. 2 shows a cross section of the horsel cap in FIG. 1, in which the loudspeaker, loudspeaker holder and diaphragm are shown; Figures 3 to 6 show different views of the loudspeaker holder in Figure 2; Fig. 7 shows the side of the horsel cap, according to an embodiment, intended to be water towards the bar, without the loudspeaker; FIG. 8 shows a cross section of the horsel cap in FIG. 7, in which the speaker, the speaker holder, and the diaphragm are shown; Figures 9 to 12 show different views of the loudspeaker holder in Figure 8; Fig. 13 shows the side of the horsel cap, according to an embodiment, which is intended to water towards the bar, without the loudspeaker; FIG. 14 shows a cross section of the horsel cap in FIG. 13, in which the speaker, the speaker holder, and the diaphragm are shown; and Figs. 15 to 18 show different views of the loudspeaker holder of Fig. 14; and FIG. 19 shows a hearing protection.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The present invention relates to a horsel cap which forms part of a horsel cover (cf. FIG. 19), in accordance with FIGS. 1, 7 and 13. Horsel covers usually comprise two horsel covers, one for each Ora. The hearing aids are arranged on a stand 200, which can be mounted on a helmet, headband or type of headband. With the help of the pillar 200, the horsel hoods are pressed over the unrest to close a noise-steaming space.
    Usually the horsel caps are provided with a sealing ring 201 arranged at the periphery of the horsel cap.
    According to one embodiment, the invention relates to a horsel cap which comprises a rigid partition 1, to form part of the horsel protection. The rigid partition 1 is usually made of a thermoplastic, such as acrylonitrile butadiene styrene (ABS), polypropylene (PP), polyoxymethylene (POM) and combinations thereof. Since the rigid partition 1 is made to be part of a hearing protection with active elements, for example for reproduction of ambient sound from the area around the hearing protection or elements with a radio function, a loudspeaker 2 and an electrical connection 3, which can be connected to a microphone or a radio receiver, are arranged on opposite sides of the partition 1.
    The loudspeaker 2 is mounted in a loudspeaker holder 4 of an elastic material on the side of the partition cradle 1 which is intended to be water against the ear of the wearer of the hearing aid. Examples of suitable elastic materials include thermoplastic elastomers, eg thermoplastic polyurethanes (TPU) and thermoset elastomers, eg rubber and silicone rubber. To provide a resonant space 8, speaker holder 4 has a first cavity 44 of water against the bar of Ora. The first cavity 44 is shielded by the loudspeaker 2 to provide the resonant space 8. To improve the quality of the sound from the loudspeaker and to control lawful bass sounds reproduced by the loudspeaker, the loudspeaker holder 4 is arranged on the partition 1 above a first aperture 13 in the partition 1. The part of the loudspeaker holder 4 which lies above the aperture 13 is arranged to form a flexible membrane 42, whereby "leakage" is minimized by ambient noise into the noise-vaporizing space via the first aperture 13. Loudspeaker 2 and the electrical connection 3 are connected by an electrical cable. 31 which runs through the aperture through the partition 1. The aperture through which the power cable 31 runs has an aperture area which is stone on the transverse cross-section of the power cable 31, s5. that the power cable can run freely through the aperture. Since the aperture and the power cable 31 usually have a circular shape in the transverse plane, the diameter of the aperture is larger than the diameter of the cable.
    According to one embodiment, the power cable 31 scratches through the first aperture 13 in the partition 1 (cf. FIGS. 2 and 8). According to the alternative embodiment, the power cable 31 runs through a second separate aperture 131 in the partition 1 (cf. FIG. 14). Since the loudspeaker 2 is connected to the electrical connection 3 by an electric cable 31, the loudspeaker holder 4 is provided with a cable hall 41, through which the electric cable 31 scratches. The cable tail 41 may overlap with the first aperture 13 (cf. FIGS. 2 and 8), or alternatively with the second separate aperture 131 (cf. FIG. 14), if present.
    The cable tail 41 is further adapted to interact with the electric cable 31, which minimizes "leakage" of ambient noise into the noise-evaporating space.
    According to one embodiment, the electrical connection 3 is connected to a microphone. Usually, the electrical connection 3, according to such an embodiment, is connected to an electronic circuit, which comprises circuits for vaporizing frequencies which are particularly large for the human word to the shape of the frequency range Mom which ordinary number is coated, where the electronic circuits in in turn are connected to the microphone.
    According to one embodiment, the partition cradle 1 has a first collar 14 for supporting the loudspeaker holder 4, in which the loudspeaker 2 is mounted. The first collar 14 is arranged around the aperture 13 on the side of the partition 1 which is intended to be water against the ear of the wearer of the earmuff protection. The first collar 14 is adapted in shape and size to the periphery of the loudspeaker holder 4, so that the loudspeaker holder 4 can be releasably slid into the first collar 14 to establish a contact between the loudspeaker holder 4 and the claimed loudspeaker, and the partition 1. Thus, the first collar 14 a projection in which the loudspeaker holder 4 can be supported (Pilaf & FIG. 2, 8 and 14).
    The speaker holder 4 is mounted in the first collar 14 to provide suspension for the speaker 2, as described above. The part of the loudspeaker holder 4 which is positioned over the first aperture 13 is thin, to form a flexible membrane 42. The thickness of the diaphragm is preferably from 0.5 to 1 mm. When the thickness is over 1 mm, too much low-frequency sound disappears. When the thickness drops below 0.6 mm, too much low-frequency sound passes. The flexible membrane 42 can improve the function of the resonant space 8 and thereby the sound reproduction. Furthermore, the flexible diaphragm 42 can transmit air vibrations from the resonant space 8 to the outer housing space, thereby improving the sound quality from the loudspeaker and the control of low frequency bass sounds reproduced by the loudspeaker. Importantly, the flexible membrane 426 will also minimize the "leakage" of ambient noise into the noise-vaporizing space via the first aperture 13. The flexible membrane 42 may be circular. Furthermore, the first collar 14 can also be circular.
    While the first collar 14 may be annular and have a continuous cradle, it is not necessary for the cradle to be continuous since the resonant space 8 dna is sealed by the loudspeaker 2 and the loudspeaker holder 4. Thus, the collar may be provided with slots or a number of separate ring segments to minimize the supply of production materials. Furthermore, it may be easier to fasten the loudspeaker holder 4 in contact with the second collar 15, if the second collar 15 consists of separate ring segments.
    According to one embodiment, the aperture 13 is not positioned centrally in the first collar 14, whereby the positioning of the loudspeaker holder is omitted 4 when assembling the headphone cover. Furthermore, such an arrangement can prevent the speaker holder 4 from rotating in the first collar 14. Rotation of power cable 31 can eventually cause a cable break.
    According to one embodiment, the diaphragm 42 is arranged in a projection from the loudspeaker holder 4. The projection is adapted in shape and size to the first aperture 13 and inserted into the first aperture 13, the loudspeaker holder 4 being mounted on the partition 1 above a first aperture 13. .
    According to one embodiment, the partition 1 has a second collar 15 (cf. FIG. 2).
    The second collar 15 is arranged around the first aperture 13 on the side 12 of the partition which is intended to be water against the ear of the wearer of the hearing aid. If they are present, then the first collar 14 encloses the second collar 15. According to such an embodiment, the loudspeaker holder 4 has a second cavity 43 which is validly removed from the wearer's Ora (Pilaf & FIG. 6). The shape and size of the second cavity 43 is adapted to the second collar 15, whereby the loudspeaker holder 4 can be slid over the second collar 15 to sell the layer of the loudspeaker holder 4.
    The hearing cap may further be provided with an arrangement with a spacer and sealing ring 201 at the periphery of the rigid partition 1. When a hearing protection comprising the hearing cap is worn, the partition 1 and a spacer seal with a sealing ring 201 of a noise-vaporizing space. Furthermore, the horsel cover may have a lid which, together with the partition 1, encloses a space in the outer cover which houses the electrical connections 3. The outer cover space may be arranged to accommodate an electrical unit connected to the electrical connection 3. Since the electrical unit may comprise a microphone for recording ambient sounds, to enable the microphone to reproduce them, the outer cover space is usually in river communication with the surroundings. The sealing ring 201 usually comprises a soft foam material, which can be compressed under pressure to expand when the pressure is relieved. Furthermore, the sealing ring 201 may comprise a sealing patch of an elastomeric material. To increase the evaporation of ambient noise, part of the hearing aid's tightening of the noise-evaporating space may be lined with a noise-absorbent, such as a foam material. Furthermore, the hearing aid can be provided with a member 202 for attaching it to a case 200, such as for mounting on a helmet, a neck or type of headband.
    According to another embodiment, which is depicted in Fig. 19, the invention relates to a horsel cover which comprises two horsel coats as described above. The horsel caps are connected via a stand 200, such as a helmet, a neck or headband.
    Without further discussion, it is believed that one skilled in the art may, using the foregoing description, make full use of the present invention. The preferred specific embodiments described herein are, therefore, to be construed as merely illustrative, and not restrictive of the remainder of the disclosure in any way whatsoever. Furthermore, although the present invention has been described above with reference to specific embodiments, it is not intended to be limited to the particular form set forth herein. Rather, the invention is limited only by the appended claims and other embodiments of those specified above are equally possible within the scope of the appended claims, for example different from those described above.
    In the claims, the term "comprising" does not mean excluding the presence of other elements or steps. In addition, although individual functions can be included in other requirements, these can, possibly with advantage, be combined and the integration in different requirements did not mean that a combination of functions is not possible and / or advantageous.
    In addition, singular references do not exclude a plurality. The terms "one", "one", "first", "second", etc. do not exclude a plurality.
    权利要求:
    Claims (11)
    [1] 1. An earcup for a hearing protection unit, said earcup comprising: a partition Wall (1) for separating a first part of the earcup, facing the Wearer,from a second part of the earcup, facing the surroundings; a speaker (2) 1ocated in the first part of the earcup; Wherein the speaker (2) is mounted in a speaker holder (4), having a first cavity(44) facing the Wearer, to sea1 of a resonance space (8); said speaker ho1der (4) in tumbeing arranged on the partition Wa11 (1) above a first aperture (13) in the partition Wa11(1): Wherein the speaker ho1der (4) comprises a membrane (42) extending acrossthe first aperture (13); and an e1ectric connector (3) 1ocated in the second part of the earcup, said speaker (2) and said e1ectric connector (3) being connected by an e1ectric cab1e (31).
    [2] 2. The earcup according to c1aim 1, Wherein the e1ectric cab1e (31) is runningfree1y through said first aperture (13) in the partition Wa11 (1), or through a secondseparate aperture (131) in the partition Wa11 (1), said speaker ho1der (4) sea1ing1yengaging With the e1ectric cab1e (31).
    [3] 3. The earcup according to c1aim 1 or 2, Wherein the partition Wa11 (1) has afirst co11ar (14) arranged around the aperture (13) on the side of the partition Wa11intended to face the ear of the Wearer and being adapted in shape and size after thespeaker ho1der (4); and Wherein the speaker ho1der (4) is s1ipped into the first co11ar (14), Whereby thefirst co11ar (13) provides a suspension for the speaker ho1der (4).
    [4] 4. The earcup according to any one of the preceding c1aims, Wherein said flexible membrane (42) is circu1ar.
    [5] 5. The earcup according to any one of the preceding c1aims, Wherein e1ectric cab1e (31) runs free1y through said first aperture (13).
    [6] 6. The earcup according to any one of the preceding c1aims, Wherein saidspeaker holder (4) is made of an e1astomer; and said partition Wa11 (1) is made of a thermop1ast.
    [7] 7. The earcup according to any one of the preceding c1aims, Wherein thepartition Wa11 (1) has a second co11ar (15) arranged around the aperture (13) on the side(12) of the partition Wa11 intended to face the ear of the Wearer; said first co11ar (14) being arranged around said second co11ar (15); said speaker ho1der (4) has a second cavity (43) facing away from the ear of theWearer and being adapted in shape and size after the second co11ar (15); and Wherein the speaker ho1der (4) is s1ipped onto the second co11ar (15), Wherebythe second co11ar (15) secures the position of the speaker ho1der (4).
    [8] 8. The earcup according to any one of the preceding c1aims, Wherein saidearcup further comprises a spacer and a sea1ing ring (201) arranged at the periphery ofthe rigid partition Wa11 (1), Wherein the partition Wa11 (1) and the sea1ing ring (201) sea1sof a noise damping space When p1aced over the ear of a Wearer; and the part of the earcup sea1ing of the noise damping space is 1ined With a noise absorbent.
    [9] 9. The earcup according to any one of the preceding c1aims, Wherein saidearcup further comprises a 1id, said 1id, together With said partition Wa11 (1), enc1osingan outercap space adopted to accommodate an e1ectric unit connected to said e1ectric connector (3).
    [10] 10. The earcup according to c1aim 9, Wherein said e1ectric unit comprises a n1icrophone.
    [11] 11. A hearing protector comprising two earcups according to any one of the preceding c1aims, the earcups being connected by a support (200).
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    同族专利:
    公开号 | 公开日
    US9167338B2|2015-10-20|
    EP2677766A3|2014-07-16|
    EP2677766B1|2020-11-11|
    RU2642904C2|2018-01-29|
    AU2013279356A1|2015-01-22|
    AU2013279356B2|2016-07-21|
    EP2677766A2|2013-12-25|
    CA2877033A1|2013-12-27|
    US20130343559A1|2013-12-26|
    WO2013190056A2|2013-12-27|
    SE537957C2|2015-12-08|
    CN103220611A|2013-07-24|
    DK2677766T3|2021-02-15|
    WO2013190056A3|2014-07-31|
    CN103220611B|2019-01-11|
    RU2015101346A|2016-08-20|
    CA2877033C|2020-02-11|
    ES2847871T3|2021-08-04|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1250675A|SE537957C2|2012-06-21|2012-06-21|Ear protection|SE1250675A| SE537957C2|2012-06-21|2012-06-21|Ear protection|
    DK13155939.5T| DK2677766T3|2012-06-21|2013-02-20|HEARING PROTECTION|
    EP13155939.5A| EP2677766B1|2012-06-21|2013-02-20|Hearing protector|
    ES13155939T| ES2847871T3|2012-06-21|2013-02-20|Auditory protector|
    US13/772,488| US9167338B2|2012-06-21|2013-02-21|Hearing protector|
    CN201310095802.0A| CN103220611B|2012-06-21|2013-03-22|Hearing protectors|
    RU2015101346A| RU2642904C2|2012-06-21|2013-06-20|Hearing protection device|
    AU2013279356A| AU2013279356B2|2012-06-21|2013-06-20|Hearing protector|
    PCT/EP2013/062919| WO2013190056A2|2012-06-21|2013-06-20|Hearing protector|
    CA2877033A| CA2877033C|2012-06-21|2013-06-20|Hearing protector|
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