KR19990044033A - 패키징 - Google Patents

패키징 Download PDF

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Publication number
KR19990044033A
KR19990044033A KR1019980701265A KR19980701265A KR19990044033A KR 19990044033 A KR19990044033 A KR 19990044033A KR 1019980701265 A KR1019980701265 A KR 1019980701265A KR 19980701265 A KR19980701265 A KR 19980701265A KR 19990044033 A KR19990044033 A KR 19990044033A
Authority
KR
South Korea
Prior art keywords
panel
transducer
board
packaging
radiator
Prior art date
Application number
KR1019980701265A
Other languages
English (en)
Inventor
헨리 에이지마
마틴 콜롬스
네일 헤리스
Original Assignee
에이지마. 헨리
뉴 트랜스듀서스 리미티드
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB9517918.0A external-priority patent/GB9517918D0/en
Priority claimed from GBGB9522281.6A external-priority patent/GB9522281D0/en
Priority claimed from GBGB9606836.6A external-priority patent/GB9606836D0/en
Application filed by 에이지마. 헨리, 뉴 트랜스듀서스 리미티드 filed Critical 에이지마. 헨리
Publication of KR19990044033A publication Critical patent/KR19990044033A/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/08—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • B42D15/02—Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets
    • B42D15/022—Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets combined with permanently fastened sound-producing or light-emitting means or carrying sound records
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
    • G06F1/1605—Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
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    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1624—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with sliding enclosures, e.g. sliding keyboard or display
    • G—PHYSICS
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    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1688—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being integrated loudspeakers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/02—Arrangements for program control, e.g. control units using wired connections, e.g. plugboards
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F9/00—Details other than those peculiar to special kinds or types of apparatus
    • G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/32—Constructional details
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    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
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    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
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    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
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    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
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    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
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    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
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    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
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    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
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    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
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    • H04R7/00—Diaphragms for electromechanical transducers; Cones
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    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
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    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
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    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
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    • H04R9/04—Construction, mounting, or centering of coil
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    • H04R9/066—Loudspeakers using the principle of inertia
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/642—Disposition of sound reproducers
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    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
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    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
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    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer

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  • Diaphragms For Electromechanical Transducers (AREA)
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Abstract

본 발명의 패키징(111)은 보드가 공진이 되도록 라디에이터를 진동시키기 위하여 라디에이터상에 전체적이고 독점적으로 설치된 트랜스듀서를 구비하는 분산 모드 음향 라디에이터인 것을 특징으로 하는 보드 소자를 포함한다.

Description

패키징
본 발명은 트랜스듀서에 관한 것으로, 특히 패널형의 음향 방사 소자를 구비하는 라우드스피커용 진동 트랜스듀서에 관한 것이다.
공지의 영국 특허 공보 GB-A-2262861 에 개시된 패널형의 라우드스피커는,
관통성의 셀룰라 구조인 공간 코아가 있는 2 종류의 표피부 재료로 형성된 단일 샌드위치형 패널인 공진성 멀티모드 라디에이터 소자와,
진동 감쇠가 없는 자유로운 방식으로 상기 패널을 지지하거나 자체에 지지체가 부착된 탑재 수단과,
라우드스피커용의 동작 주파수대에서 전기적 입력에 응답하여 상기 라디에이타 패널내에 멀티-모드식 공진을 촉발시키는 역활을하는 패널에 결합된 전기-기계식 구동 수단을 구비하며,
상기 패널은, 모든 방향에 대하여, 단위 표면적(μ) 당 패널 매스의 큐브 전력에 대한 휨 강성 (B) 비가 적어도 10 이 되도록 되어 있는 것을 특징으로하는 패널형의 라우드스피커를 개시한다.
본 발명의 실시예는 자연의 부재를 사용하며, 그 구조 및 구성은 일반적으로 또는 특별히 본건과 동일 날짜로 출원되어 계류중인 당사의 PCT 출원 (당사 사건번호 P.5711) 의 발명을 사용하여 획득할 수 있다. 따라서, 이러한 부재는, 부재의 에지부로는 가끔씩만 연장되고 사실상 두께 방향으로 가로지르지며 연장되어있는 동작 영역내에, 벤딩파 (bending wave)로 입력되는 진동 에너지에 대한 내구력과 전달 능력이 있으며; 주위의 공기와 결합되는 음향에 유익한 역활을하는 상기 영역 전체에 분포된 공진 모드 진동 성분을 포함하도록 이방성 휨 강성과 무관하도록 구성되고; 상기 영역내의 음향 진동 활동 및 이러한 진동 활동인 음향 정보에 대응하는 신호 (일반적으로 전기 신호) 에 관련되어 효과가 발생되는 트랜스듀서 수단, 특히 동작적으로 이 트랜스듀서의 활성부 또는 이동부,을 위하여 상기 영역내에 기결정되어 선택되는 위치 또는 자리를 갖게된다. 본건과 동일 날짜로 출원되어 계류중인 당사의 PCT 출원 (당사 파일 P.5711) 에는 트랜스듀서 수단을 갖추지 않은 수동 음향 소자 (예를들면 반향용, 또는 음향 여과용, 또는 음향학적으로 공간 또는 실내에 음성을 전달시키기는 소자) 로서 또는 수동 음향 소자내에 이러한 부재의 사용예가 개시되어 있으며; 트랜스듀서 수단을 갖춘 능동 음향 소자 (예를들면 매우 넓은 범위의 음원 또는 입력 신호가 공급되면 이를 소리로 변환시키는 라우드스피커, 또는 소리를 다른 신호로 변환시키는 마이크로폰) 로서 또는 능동 음향 소자내에 이러한 부재의 사용예가 개시되어 있다. GB-A-2262861에 다음과 같은 패널형 라우드스피커가 공지되어 있다.
본 발명은 특히 라우드스피커와 같은 음향장치를 통합하는 패키징에 관한 것이다. "패키징"이라는 용어는 일반적으로 처분할 수 있는지 여부에 상관없이 콘테이너를 포함하도록 의도하는 것이다.
전술한 부재는 이하에서 분산 모드 음향 라디에이타로 지칭되며, 상기 PCT 출원에서와 같은 특성을 가질 수 있으며, 만약 그렇지 않으면 본 명세서에서 특별히 그 의미를 제공할 것이다.
본 발명은 보드요소를 포함하는 패키징에 관한 것으로, 상기 보드는 공진이 되도록 라디에이터를 진동시키기 위하여 라디에이터상에 전체적이고 독점적으로 설치된 트랜스듀서를 구비하는 분산 모드 음향 라디에이터인 것을 특징으로 한다. 상기 보드는 표피층사이에 샌드위치된 다공성 코어를 구비한 패널일 것이다. 상기 보드는 크래프트 보드의 시트사이에 샌드위치된 발포 플라스틱의 코어를 포함한다. 트랜스듀서는 피에조 전기 벤더일 것이다.
상기 보드는 박스의 일측면에 형성된다. 박스는 덮개를 가지고 상기 박스와 관련한 덮개의 운동에서 트랜스듀서의 동작을 일으키기 위해 상기 덮개와 결합되는 수단을 구비한다.
상기 패키징은 신호발생기, 증폭기및 전기배터리를 포함한다.
본 발명은 패키징에 관한 것으로, 더욱 상세하게는 라우드스피커를 통합하는 패키징에 관한 것이다.
본 발명은 도해적으로 예시된 도면을 참조하여 실시예의 의해 설명될 것이다.
도 1은 당사의 본 건과 연관하여 계류중인 국제출원 No(당사 사건번호 5711)에서 설명되고 청구된 분산 모드 라우드스피커를 도시한 도면,
도 2a는 도 1의 "A-A"라인을 절단한 부분단면도,
도 2b는 도 2a에서 도시된 종류의 분산 모드 라디에이터를 통과하고 두개의 선택적인 구조를 보인 횡단면도,
도 3은 패키징의 일실시예를 나타낸 사시도,
도 4는 트랜스듀서를 나타낸 사시도이다.
본 건과 동일 날짜로 출원되어 계류중인 국제출원 (당사 사건 번호 P.5711) 에서 기술되고 청구된 종류의 패널형 라우드스피커 (81) 를 도시한 도 1 에 있어서, 패널형 라우드스피커 (81) 는 탄력성이 있는 서스펜션 (3) 을 갖는 사각형 프레임 (1) 을 구비하며, 서스펜션의 내부 주변부를 따라서 분산 모드 소리 방사 패널 (2) 이 지지된다. 본건과 동일 날짜로 출원된 국제 출원 (당소 사건 번호 P.5683/4/5) 에서 상세히 기술된 트랜스듀서 (9) 는 치수 X, Y 로 표시된 소정의 위치의 패널 (9) 위에 또는 패널내에 안전하게 탑재되며, 이 위치의 좌표는, 벤딩파를 패널 내부로 진행시킴으로써 패널을 공진시켜 음향 출력을 방사할 수 있도록 하기 위하여, 본 건과 동일 날짜로 출원되어 계류중인 국제 출원 (당소 사건 번호 P.5711) 에서 기술된 것처럼 계산되어 진다.
트랜스듀서 (9) 는 도전체 (28) 에 의하여 트랜스듀서에 연결된 신호 증폭기 (10), 예를들어 오디오 증폭기,에 의하여 구동된다. 증폭기 부하량과 필요 전력은, 종래의 원뿔형 라우드스피커와 유사하게, 완전히 표준 상태일 수 있으며, 민감도는 실내 부하 상태에서 86-88 dB/watt 이다. 증폭기 부하 임피던스는 보통 그 저항이 6 오옴이며, 처리 전력은 20 - 80 와트이다. 패널 코아 및/또는 표피부가 금속인 경우에, 이들은 열을 흡수하는 역할을 하게되며, 따라서 트랜스듀서는 트랜스듀서의 모터 코일로부터 발생되는 열을 제거할 수 있기 때문에 처리 전력이 개선된다.
도 2a 와 2b 는 도 1 에 도시된 라우드스피커 (81) 의 부분 단면도이다. 도 2 에 있어서, 프레임 (1) 과 서스펜션 (3) 및 패널 (2) 은 각각 접착성 결합의 조인트부 (20) 에 의하여 서로 연결되어 있다. 프레임용으로 적당한 재료로는 무게가 가벼운 프레이밍, 예를들어 알루미늄 합금같은 압출금속 또는 플라스틱으로된 화상 프레이밍,이 있다. 적당한 서스펜션 재료로는 기포 고무 와 발포 플라스틱과 같은 탄성 재료가 사용된다. 조인트부 (20) 에 사용되는 적당한 접착제로는 에폭시, 아클릴릭, 및 시아노-아클릴레이트 등과같은 접착제가 있다.
도 2b 에 확대 도시된 것처럼, 패널 (2) 은 교차 결합된 폴리비닐클로라이드 과같은 단단한 플라스틱 기포 (97) 가 있는 코아 (22); 또는 셀룰라 매트릭스 (98) 즉, 금속 호일, 플라스틱 등과같은 벌집형 매트릭스의 코아(22) 를 갖는 단단한 경량성 패널이며, 상기 셀은 패널의 평면을 가로지르며 연장되고 페이퍼, 카드, 플라스틱, 또는 금속 호일 또는 시트 (sheet) 등으로 이루어진 대향 표피부 (21) 로 감싸여진다. 표피부가 플라스틱으로 만들어진 경우에, 그 자체의 모듈루스 (modulus) 를 증가시키기 위하여 공지된 방법에 의하여 표피부는 탄소, 유리, 케블라 (Keblar : RTM) 등과같은 섬유로써 보강된다.
바람직한 표피층 재료와 이러한 보강재로는 탄소; 유리; 케블라 (RTM); 다양한 조직으로 짜여진 아라미드성 섬유인 노멕스 (Nomex : RTM) 외에도 페이퍼; 본딩 페이퍼 라미네이트; 멜라민; 및 밀라 (Mylar : RTM), 캡탄 (Kaptan : RTM), 폴리카보네이트, 페놀릭, 폴리에스테르 또는 관련 플라스틱, 및 섬유로 보강된 플라스틱 등과같이 모듈루스가 높은 합성 플라스틱 필름; 및 금속 시트 또는 호일이 사용된다. 벡트라 (Vectra) 등급의 액정 폴리머 열경화성 재료를 조사 연구하여보면, 이들 재료를 사용하여, 직경 30 cm 의 둘레까지, 초박형 표피부 또는 이보다 더 작은 두께의 셸 (shell) 을 형성하기 위한 주입 몰딩이 가능함을 알 수 있다. 이 재료 자체는 주입된 방향으로 방향성 격자 구조를 형성하며, 3 중 에너지를 양호하게 전달하기 위한 바람직한 방향은 구동점으로부터 패널 주변부쪽으로 향한다.
상기 재료와 또 다른 열경화성 재료에 대하여 위와같은 몰딩을 가하기 위하여, 몰딩 도구는 모터 코일 및 자석 서스펜션 등과같은 트랜스듀서 부품의 정확한 위치에 대하여 홈 또는 링과같은 기록 특징과 위치 특징에 대한 정보를 갖고있다. 다소 질이 낮은 코아 재료를 부가하게 되면, 표피부 두께가 부분적으로 (예를들어 트랜스듀서 직경의 150% 까지 소정 면적 또는 고리부) 증가되어 그 면적 부분이 재강화되고 진동 에너지가 유리하게 패널내부에 연결된다는 이점이 있다는 것을 알 수 있다.
상기 수단에 의하여 기포 재료가 더욱 부드러워짐에 따라서 고주파 응답 특성이 개선된다.
바람직한 코아층 재료로는 인조 벌집 또는 골이 형성되어 있는 알루미늄 합금 시트 또는 호일; 또는 케블라 (RTM), 노멕스 (RTM), 평평하거나 본딩되어있는 페이퍼, 및 다양한 합성 플라스틱 필름 이외에도, 발포 또는 기포 플라스틱 또는 펄프 재료와, 적당하게 저밀도인 경우에는 애어로젤 금속도 가능하다. 바람직한 몇몇개의 코아층 재료는 제조시에 이미 사용가능할 정도의 표피층 성질을 나타내며, 그렇지 않은 경우에도 표피층간에 적층없이도 사용할 수 있을 만큼의 충분한 잠재적 견고성을 유지한다. 상표명 "Rohacell" 로 알려진 고성능 셀룰라 코아 재료는 라디에이타 패널로 적합하며 표피부가 없다. 사실상, 본 목적은 소정 목적에 적합하도록 전체적 경량성과 견고성을 갖는 것으로, 특히 코아 및 표피층의 기여도를 최적화하고 이들 코아 및 표피층간을 대체시키는 것을 포함한다.
바람직한 패널 형성을 위하여 금속 및 금속 합금 표피부가 사용되며, 또 다른 대체용으로 탄소 섬유 보강재가 사용된다. 이들은 여러 EMC 적용시에 중요한 역활을하는 실질적인 무선 주파수 스크리닝 성질을 갖출 것이다. 종래의 패널 또는 원추형 라우드스피커는 원래 EMC 스크리닝 능력을 갖추고 있지 않다.
또한, 피에조 (piezo) 및 전기 구동식 트랜스듀서의 바람직한 형태는 전자기 복사 또는 스트레이 자장이 무시할 수 있을 정도이어야 한다. 종래의 라우드스피커에서는 자장이 컸기 때문에, 보상을 위한 소정의 역방책이 취하여지지 않은 경우에는 1 미터 거리까지 자장의 영향이 미친다.
적용시에 스크리닝을 유지하는 것이 중요한 경우에는, 소정 DML 패널의 도전부에 전기가 연결될 수 있으며, 전기 도전성 기포 또는 유사한 인터페이스가 에지부 설치용으로 사용될 수 있다.
서스펜션 (3) 은 패널 에지부가 심하게 움직이는 것을 방지하여 패널 (2) 에지부의 진동을 감쇠시킨다. 추가용 또는 대체용으로, 또 다른 진동 감쇠재, 예를들어 패치 (patch), 를 패널의 선택된 위치의 본딩시켜 과도한 움직임을 감쇠시키고 공진 현상을 패널 전체에 대하여 균일하게 분산시킬 수 있다. 상기 패치는 통상 종래의 라우드스피커의 외관부로 사용되던 역청기 (bitumen-based) 재료로 만들어지거나, 탄력있는 또는 단단한 폴리메릭 시트 재료로 만들어진다. 몇몇 재료, 특히 페이퍼와 카드 및 소정의 코아는 자체적으로 진동을 감쇠시킨다. 필요에 따라서는, 패널 구성시에 접착제로써 단단하게 고정시키는 것 보다 탄력성있게 고정시키는 방식을 채택함으로써 진동 감쇠를 증대시킬 수 있다.
선택 가능한 상기 진동 감쇠재는 패널의 시트 재료에 영구적으로 결합되어 특별히 적용할 수도있다. 에지부와 코너부에서는 패널의 저주파수 진동 모드가 다소 적게 분산된다는 점에서 특히 중요하다. 진동 감쇠재를 에지방향으로 고정시킴으로써, (비록, 그 코너부는 자주 상대적으로 자유로울 수 있지만, 즉, 저주파 동작시에 조금 늘어날 수 있지만) 완전히 프레임된 시트 재료를 갖춘 패널쪽에 유리하게 인도할 수 있다. 접착성 또는 자체-접착성 재료에 의하여 접착이 가능하다. 상기 영역중 중간정도의 일부 위치에, 시트 재료에 부착된 소정의 매스(mass) 또는 매스들에 의하여, 다른 형태의 유용한 진동 감쇠, 특히 다소 예민한 효과 및/또는 중간 주파수 및 고주파수에 의한 감쇠가 가능하다.
전술한 음향 패널은 양방향성이다. 후면으로부터의 소리 에너지의 위상은 전면으로부터의 소리 에너지의 위상과 큰 연관성이 없다. 결과적으로, 실내에서의 음향 전력과, 균일하게 분포된 주파수의 소리 에너지와, 감소된 반사파 및 정재파 효과를 전체적으로 합쳐 평가하여 보면 유리한 점이 있으며, 재생된 소리 기록으로부터 자연 공간과 분위기를 우수하게 재생할 수 있는 이점이 있다.
음향 패널로부터의 방사는 보통 무방향성이지만, 정보와 관련된 위상의 비율은 축으로부터 멀어질 수록 증가한다. 팬텀 스테레오 이미지의 수렴을 개선시키기 위하여, 화상에서와같이, 사람이 서있는 정도의 높이에 스피커를 배치하여, 스테레오 효과가 최적인 곳에 보통 자리잡게되는 청취자에게 축으로부터 적당한 거리만큼 떨어져서 위치를 잡을 수 있도록하는 이점을 제공한다. 이와 유사하게, 청취자를 기준으로 삼각형 형태로 좌우에 배치하는 구조는 또 다른 각도 성분을 제공한다. 따라서, 우수한 스테레오를 얻을 수 있다.
종래의 라우드스피커 재생산과 비교하여보면 청취자들에게는 또 다른 장점이 있다. 음향 패널 소리 방사는 본래 분산 성질이 있기 때문에 동일점원으로부터 일정하게 떨어진 거리에 대하여 역제곱 법칙을 따르지 않는 소리 볼륨을 가진다. 거리에 따른 강도의 하강은 역제곱 법칙에 의하여 예측되는 것 보다 훨씬 작기 때문에, 결과적으로 중앙으로부터 멀리 떨어져 있으며 좋지 않은 장소에 위치한 청취자에게 있어서, 팬널 스피커의 강도 필드는 종래의 라우드스피커와 비교하여보면 더 우수한 스테레오 효과를 나타낸다. 왜냐하면, 중앙으로부터 멀리 떨어져 있는 청취자는 라우드스피커에 근접함으로써 초래되는 이중 문제점; 첫째로, 근접한 라우드스피커로부터의 큰소리가 과도하게 증가하는 것과, 그 다음, 추가적인 라우드스피커로부터의 큰소리가 그에 대응하여 감소한다는 것; 으로부터 벗어 날 수 있기 때문이다.
또한, 평탄하고 경량인 패널형 스피커이고, 눈으로 보기에 호감을 주며, 음질이 우수하며, 단지 한개의 트랜스듀서만을 필요로하고, 각 패널 다이아프램으로부터의 전체범위 소리에 대하여 크로스오버 현상이 없다는 장점이 있다.
도 3은 도 1및 도 2의 라우드스피커기술이 채택된 패키징을 나타낸 것이다.
도 3에 도시된 바와 같이, 패키징은 힌지된 덮개(139), 박스를 구비하는 박스(111)의 형태를 이루고 적어도 일부분은 도 2에 도시된 바와 같은 패널을 형성하기 위해 크래프트 보드의 시트사이에 샌드위치된 발포된 플라스틱의 코어를 포함하는 복합재료로 부터 만들어 지는데, 이로서 박스는 도 1및 도 2를 참조하여 설명된 단단하고 경량인 분산 모드 음향 라디에이터를 포함한다.
현재의 경우에 박스의 일측면을 형성하는 소정의 패널이 적절하게 만들어진다면 적당지만, 박스의 후측 패널(140)이 분산 모드 라디에이터 라우드스피커를 형성하기 위해 사용된다. 트랜스듀서(9)에 대한 선택적인 배치는 도트 라인내에 도시되어 진다.
도 4에 도시된 바와 같은 피에조 트랜스듀서(9)는 상기 박스의 후측 패널(140)의 내측면에 부착되고 또한 상기 후방 패널에 설치된 사운드 발생기/증폭기/배터리 유닛(112)에 의해 구동되어 진다. 상기 유닛(112)은 덮개(139)가 상기 박스에 안정하게 되도록 하는 힌지(53)을 가진 필수적으로 형성된 스위치에 의해 제어되고 이로서 사운드 발생기는 덮개가 올려졌을때 동작되어 진다.
이러한 배치에서 패널(2)의 에지 끝단은 도 1및 도 2에 도시된 것과 같은 종류의 추가적인 프레임(1) 또는 지지대(3)이 요구되지 않도록 박스의 코너에 의해 형성되어 진다.
패키징은 도면에서 도시된 형상을 가질 필요가 없으며, 예를 들어 내용물의 요구조건에 따라 형상을 이룰 수 있을 것이다. 이로서 패키징은 캠팩트 디스크를 둘러싸거나 이와 유사한 형상을 이루고 컴팩트 디스크의 내용물의 오디오 시연을 제공하고 관련된 다른 정보를 제공하기 위해 배치되어 질 것이다. 다른 예와 같이 패키징은 뮤지컬 박스를 형성할 것이다. 추가적인 예와 같이 패키징은 내용물에 적합한 오디오 구조를 제공하기 위해 배치되어 질 것이다.
도 4는 접착 본드(20)에 의해 패널(2)의 정면에 결합된 황동 재질의 디스크(118)에 설치된 결정성 디스크형 피에조 벤더(27)의 형태로서 분산 모드 패널(2)을 위한 트랜스듀서(9)를 나타낸 것이다. 동작에서 덮개(28)을 경유하여 트랜스듀서(9)에 적용된 음향신호는 피에조 디스크(27)를 구부려지도록 하고 이로서 패널에 벤딩파를 제공하도록 국부적이고 탄성적으로 패널(2)을 변형시킨다.

Claims (8)

  1. 보드소자를 포함하는 패키징에 있어서, 상기 보드는 공진이 되도록 라디에이터를 진동시키기 위하여 라디에이터상에 전체적이고 한정적으로 설치된 트랜스듀서를 구비하는 분산 모드 음향 라디에이터인 것을 특징으로 하는 패키징.
  2. 제 1항에 있어서,
    상기 보드는 표피층사이에 샌드위치된 다공성 코어를 구비하는 패널인 것을 특징으로 하는 패키징.
  3. 제 1항 또는 제 2항에 있어서,
    상기 보드는 크래프트 보드의 시트사이에 샌드위치된 발포성 플라스틱의 코어를 포함하는 것을 특징으로 하는 패키징.
  4. 제 1항 또는 제 2항에 있어서,
    상기 트랜스듀서는 피에조전기 벤더인 것을 특징으로 하는 패키징.
  5. 제 4항에 있어서,
    상기 벤더는 결정성인 것을 특징으로 하는 패키징.
  6. 제 1항 내지 제 5항중 어느 한 항에 있어서,
    상기 보드는 박스의 일측면을 형성하는 것을 특징으로 하는 패키징.
  7. 제 6항에 있어서,
    상기 박스는 덮개및 상기 박스와 관련된 덮개의 운동에서 트랜스듀서의 동작을 야기하기 위해 상기 덮개와 결합된 수단을 구비하는 것을 특징으로 하는 패키징.
  8. 제 7항에 있어서,
    신호발생기, 증폭기및 전기배터리를 포함하는 것을 특징으로 하는 패키징.
KR1019980701265A 1995-09-02 1996-09-02 패키징 KR19990044033A (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB9517918.0 1995-09-02
GBGB9517918.0A GB9517918D0 (en) 1995-09-02 1995-09-02 Acoustic device
GB9522281.6 1995-10-31
GBGB9522281.6A GB9522281D0 (en) 1995-10-31 1995-10-31 Acoustic device
GB9606836.6 1996-03-30
GBGB9606836.6A GB9606836D0 (en) 1996-03-30 1996-03-30 Acoustic device

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KR19990044033A true KR19990044033A (ko) 1999-06-25

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KR1019980701299A KR19990044066A (ko) 1995-09-02 1996-09-02 패널형 음향방사 소자를 구비한 라우드스피커
KR1019980701264A KR19990044032A (ko) 1995-09-02 1996-09-02 라우드스피커를 포함한 디스플레이 스크린
KR1019980701203A KR19990037724A (ko) 1995-09-02 1996-09-02 인사카드 및 그 유사카드
KR1019980701261A KR19990044029A (ko) 1995-09-02 1996-09-02 포터블 콤팩 디스크 플레이어
KR1019980701144A KR19990037667A (ko) 1995-09-02 1996-09-02 진동 트랜스듀서
KR1019980701202A KR19990037723A (ko) 1995-09-02 1996-09-02 패널형 음향 방사 소자를 구비한 라우드 스피커
KR1019980701145A KR19990037668A (ko) 1995-09-02 1996-09-02 패널형 음향 복사 요소들을 포함하는 라우드스피커를 구비하는여객수단
KR1019980701262A KR19990044030A (ko) 1995-09-02 1996-09-02 라우드스피커를 구비하는 악기
KR1019980701205A KR19990037726A (ko) 1995-09-02 1996-09-02 판넬형 음향 방사소자들로 구성된 라우드스피커
KR1019980701301A KR19990044068A (ko) 1995-09-02 1996-09-02 패널형 마이크로폰
KR1019980701265A KR19990044033A (ko) 1995-09-02 1996-09-02 패키징
KR1019980701020A KR19990036352A (ko) 1995-09-02 1996-09-02 관성 진동 트랜스듀서
KR10-1998-0701595A KR100419334B1 (ko) 1995-09-02 1996-09-02 음향장치
KR1019980701260A KR19990044028A (ko) 1995-09-02 1996-09-02 퍼서널 컴퓨터
KR1019980701404A KR19990044170A (ko) 1995-09-02 1996-09-02 패널형 라우드스피커
KR1019980701405A KR19990044171A (ko) 1995-09-02 1996-09-02 패널형 음향 방사소자를 구비하는 라우드스피커
KR10-1998-0701263A KR100443204B1 (ko) 1995-09-02 1996-09-02 관성진동트랜스듀서
KR1019980701204A KR19990037725A (ko) 1995-09-02 1996-09-02 라우드스피커가 결합된 디스플레이수단
KR1019980701300A KR19990044067A (ko) 1995-09-02 1996-09-02 벤딩기계
KR1019980701570A KR19990044330A (ko) 1995-09-02 1996-09-02 패널형 라우드스피커
KR1019980701571A KR19990044331A (ko) 1995-09-02 1996-09-02 라우드 스피커가 통합된 게시판

Family Applications Before (10)

Application Number Title Priority Date Filing Date
KR1019980701299A KR19990044066A (ko) 1995-09-02 1996-09-02 패널형 음향방사 소자를 구비한 라우드스피커
KR1019980701264A KR19990044032A (ko) 1995-09-02 1996-09-02 라우드스피커를 포함한 디스플레이 스크린
KR1019980701203A KR19990037724A (ko) 1995-09-02 1996-09-02 인사카드 및 그 유사카드
KR1019980701261A KR19990044029A (ko) 1995-09-02 1996-09-02 포터블 콤팩 디스크 플레이어
KR1019980701144A KR19990037667A (ko) 1995-09-02 1996-09-02 진동 트랜스듀서
KR1019980701202A KR19990037723A (ko) 1995-09-02 1996-09-02 패널형 음향 방사 소자를 구비한 라우드 스피커
KR1019980701145A KR19990037668A (ko) 1995-09-02 1996-09-02 패널형 음향 복사 요소들을 포함하는 라우드스피커를 구비하는여객수단
KR1019980701262A KR19990044030A (ko) 1995-09-02 1996-09-02 라우드스피커를 구비하는 악기
KR1019980701205A KR19990037726A (ko) 1995-09-02 1996-09-02 판넬형 음향 방사소자들로 구성된 라우드스피커
KR1019980701301A KR19990044068A (ko) 1995-09-02 1996-09-02 패널형 마이크로폰

Family Applications After (10)

Application Number Title Priority Date Filing Date
KR1019980701020A KR19990036352A (ko) 1995-09-02 1996-09-02 관성 진동 트랜스듀서
KR10-1998-0701595A KR100419334B1 (ko) 1995-09-02 1996-09-02 음향장치
KR1019980701260A KR19990044028A (ko) 1995-09-02 1996-09-02 퍼서널 컴퓨터
KR1019980701404A KR19990044170A (ko) 1995-09-02 1996-09-02 패널형 라우드스피커
KR1019980701405A KR19990044171A (ko) 1995-09-02 1996-09-02 패널형 음향 방사소자를 구비하는 라우드스피커
KR10-1998-0701263A KR100443204B1 (ko) 1995-09-02 1996-09-02 관성진동트랜스듀서
KR1019980701204A KR19990037725A (ko) 1995-09-02 1996-09-02 라우드스피커가 결합된 디스플레이수단
KR1019980701300A KR19990044067A (ko) 1995-09-02 1996-09-02 벤딩기계
KR1019980701570A KR19990044330A (ko) 1995-09-02 1996-09-02 패널형 라우드스피커
KR1019980701571A KR19990044331A (ko) 1995-09-02 1996-09-02 라우드 스피커가 통합된 게시판

Country Status (6)

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US (6) US6243473B1 (ko)
JP (2) JP3895775B2 (ko)
KR (21) KR19990044066A (ko)
CN (1) CN1655645A (ko)
MX (4) MX9801518A (ko)
RO (1) RO120304B1 (ko)

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KR19990044029A (ko) 1999-06-25
KR19990044170A (ko) 1999-06-25
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KR19990044028A (ko) 1999-06-25
KR19990037724A (ko) 1999-05-25
KR19990037667A (ko) 1999-05-25
KR19990044067A (ko) 1999-06-25
KR19990037725A (ko) 1999-05-25
KR100443204B1 (ko) 2004-10-26
CN1655645A (zh) 2005-08-17
MX9801519A (es) 1998-05-31
MX9801586A (es) 1998-05-31
KR19990044171A (ko) 1999-06-25
MX9801588A (es) 1998-08-30
KR19990037668A (ko) 1999-05-25
US7194098B2 (en) 2007-03-20
KR19990044066A (ko) 1999-06-25
MX9801591A (es) 1998-08-30
KR19990044030A (ko) 1999-06-25
KR19990044068A (ko) 1999-06-25
US20060159293A1 (en) 2006-07-20
US6243473B1 (en) 2001-06-05
KR19990044353A (ko) 1999-06-25
US6332029B1 (en) 2001-12-18
MX9801440A (es) 1998-05-31
MX9801518A (es) 1998-05-31
KR19990044031A (ko) 1999-06-25
KR19990044032A (ko) 1999-06-25
MX9801587A (es) 1998-05-31
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US20050147273A1 (en) 2005-07-07
JP3763848B2 (ja) 2006-04-05
US7158647B2 (en) 2007-01-02
JPH11512249A (ja) 1999-10-19
JP3895775B2 (ja) 2007-03-22
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MX9801593A (es) 1998-06-30
KR19990037726A (ko) 1999-05-25
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JPH11515122A (ja) 1999-12-21
US20020027999A1 (en) 2002-03-07
KR19990044330A (ko) 1999-06-25
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US6904154B2 (en) 2005-06-07
US20050147274A1 (en) 2005-07-07
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MX9801517A (es) 1998-05-31

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