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DISPOSITIF DE PROTECTION AUDITIVE AVEC RÉFLECTEURS ACOUSTIQUES
专利权人:
GN Hearing A/S
发明人:
申请号:
EP19170883.3
公开号:
EP3628285A1
申请日:
2019.04.24
申请国别(地区):
EP
年份:
2020
代理人:
摘要:
A hearing protection device comprising a first ear protector, the first ear protector comprising at least a first sound attenuation body, a first receiver, and a first primary microphone, the first sound attenuation body comprising a cup portion providing a noise dampening space, the cup portion having a peripheral part comprising a forward facing part, a rearward facing part, an upper part and a lower part, the cup portion further comprising: an outer surface facing the ambient space; an inner cup portion accommodating the first receiver; a primary sound reception area positioned in a central area of the outer surface of the cup portion, where the central area is in an area which is between 20 and 80 % of the length between the forward facing part and the rearward facing part; and at least a first sound reflector configured to reflect and direct sound waves towards the primary sound reception area, where the first sound reflector is positioned in an area on the outer surface between the sound reception area and the peripheral part of the cup portion.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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