KR0121620Y1 - Speaker cabinet - Google Patents
Speaker cabinet Download PDFInfo
- Publication number
- KR0121620Y1 KR0121620Y1 KR92021172U KR920021172U KR0121620Y1 KR 0121620 Y1 KR0121620 Y1 KR 0121620Y1 KR 92021172 U KR92021172 U KR 92021172U KR 920021172 U KR920021172 U KR 920021172U KR 0121620 Y1 KR0121620 Y1 KR 0121620Y1
- Authority
- KR
- South Korea
- Prior art keywords
- speaker cabinet
- speaker
- cabinet
- present
- lightweight concrete
- Prior art date
Links
- 239000011358 absorbing material Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- 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
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
- H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
본 고안은 스피커캐비넷에 관한 것으로서, 특히 캐비넷의 강성을 증가시킴과 동시에 양호한 흡음성을 갖도록 한 스피커캐비넷에 관한 것이다. 본 고안에 따른 스피커캐비넷은, 스피커유니트를 수납지지하는 스피커캐비넷의 내표면 대부분에 걸쳐 다공질의 경량콘크리트가 부착되는 것을 특징으로 한다. 이에 의해 강성이 증가됨과 동시에 양호한 흡음성을 갖게 되므로 이상공진현상을 방지할 수 있다.The present invention relates to a speaker cabinet, and more particularly to a speaker cabinet that increases the rigidity of the cabinet and at the same time has good sound absorption. The speaker cabinet according to the present invention is characterized in that the porous lightweight concrete is attached to most of the inner surface of the speaker cabinet for receiving and supporting the speaker unit. As a result, the rigidity is increased and at the same time it has a good sound absorption property, it is possible to prevent abnormal resonance phenomenon.
Description
제1도는 흡음재가 부착된 종래의 스피커캐비넷.1 is a conventional speaker cabinet having a sound absorbing material attached thereto.
제2도는 종래 경량 콘크리트만의 스피커캐비넷의 구성도.2 is a configuration diagram of a speaker cabinet of the conventional lightweight concrete only.
제3도는 종래 기술과 대비한 출력음압-주파수특성도.3 is an output sound pressure-frequency characteristic diagram compared with the prior art.
제4도는 종래 기술과 대비한 모우드해석모형도.4 is a mode analysis model compared with the prior art.
제5도는 본 고안의 실시예에 따른 스피커캐비넷의 구성도.5 is a configuration of a speaker cabinet according to an embodiment of the present invention.
*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1:스피커캐비넷 2:스피커유니트1: Speaker cabinet 2: Speaker unit
3:경량콘크리트 4:고정부재3: lightweight concrete 4: fixing member
5:섬유질흡음재5: fiber absorber
본 고안은 스피커캐비넷에 관한 것으로서, 특히 캐비넷의 흡음성을 개선한 스피커캐비넷에 관한 것이다.The present invention relates to a speaker cabinet, and more particularly to a speaker cabinet that improved the sound absorption of the cabinet.
일반적인 스피커캐비넷은 마그네트와 진동판 등을 이루어지는 스피커유니트를 수납지지하는 구조로서 합판 또는 파티클보드 등 탄성율과 굽힘강도가 약한 판재로 구성되어 있으므로, 스피커유니트의 방사음으로 인한 이상공진형상이 발생한다.A general speaker cabinet is a structure for accommodating and supporting a speaker unit including a magnet and a diaphragm, and is composed of a plate material having a low elastic modulus and bending strength such as plywood or particle board, and thus an abnormal resonance shape is generated due to the sound of the speaker unit.
이러한 이상공진으로 말미암아 음이 찌그러지는 등의 음질저하 현상을 막기 위해서는, 스피커캐비넷내의 불필요한 정재파(Standing wave)를 적절히 흡수하거나 캐비넷의 강도를 높여 정재파의 영향을 적게 받도록 할 필요가 있다.In order to prevent sound degradation such as sound distortion caused by such abnormal resonance, it is necessary to appropriately absorb unnecessary standing waves in the speaker cabinet or to increase the strength of the cabinet so as to be less affected by standing waves.
제1도는 이러한 필요에 부응한 종래의 기술로서, 스피커캐비넷(1)의 내표면에 솜이나 유리섬유로 된 섬유질 흡음재(5)만을 부착하여 두고 있다. 그러나 이러한 종래의 흡음재는 비교적 많은 용적을 차지할 뿐만 아니라 스피커유니트(2)의 배면으로부터 음압으로 인해 흡음재(5)가 흩날리는 단점이 있다. 또한 습도에 민감하여 시간이 경과함에 따라 흡음력이 저하되므로 음질이 열화되는 단점이 있다.FIG. 1 is a conventional technique in response to such a need, and only the fibrous sound absorbing material 5 made of cotton or glass fiber is attached to the inner surface of the speaker cabinet 1. However, the conventional sound absorbing material not only occupies a relatively large volume, but also has a disadvantage in that the sound absorbing material 5 is scattered due to sound pressure from the back of the speaker unit 2. In addition, there is a disadvantage in that the sound quality is degraded because the sound absorbing power is lowered over time due to sensitivity to humidity.
제2도는 종래의 다공질 경량 콘크리트 만의 스피커캐비넷 구성도로서, 그 내표면에 다공질의 경량콘크리트(3)를 접착시켜 두고 있다.2 is a conventional speaker cabinet configuration diagram of porous lightweight concrete, and the porous lightweight concrete 3 is bonded to the inner surface thereof.
건축 등에서 널리 사용되고 있는 다공질 투수성 콘크리트(Porous Concrete)는 시멘트에 알루미늄분말 등의 발포제를 섞어 다량의 기포를 형성하고 비중을 감소시킨 것이다. 그러나 이와같은 다공질 투수성 경량콘크리트만의 캐비넷 구조를 흡음성이 떨어지는 단점이 있다.Porous concrete, which is widely used in construction, is to form a large amount of bubbles and reduce specific gravity by mixing foaming agents such as aluminum powder with cement. However, the cabinet structure of such porous permeable lightweight concrete has a disadvantage of poor sound absorption.
따라서 본 고안은 상기와 같은 문제점을 해결하기 위하여 다공질의 경량콘크트와 섬유질 흡음재를 이상적으로 배치하는 것에 의하여 강성을 확보함과 동시에 양호한 흡음성을 갖는 스피커캐비넷을 제공하는 데에 그 목적이 있다.Accordingly, an object of the present invention is to provide a speaker cabinet having good sound absorption while ensuring rigidity by ideally disposing a porous lightweight concrete and a fibrous sound absorbing material in order to solve the above problems.
전솔한 목적을 달성하기 위하여 본 고안은 스피커유니트를 수납지지하는 스피커캐비넷에 있어서, 상기 스피커캐비넷의 내표면 대부분에 걸쳐 다공질의 경량콘크리트와, 이 경량 콘크리트 사이에 기존의 섬유질 흡음재를 사이에 끼이게 설치하는 것에 의하여 달성된다.In order to achieve the purpose of the present invention, the present invention is a speaker cabinet for receiving and supporting a speaker unit, the porous lightweight concrete over most of the inner surface of the speaker cabinet, and sandwich the existing fibrous sound-absorbing material between the lightweight concrete. Is achieved by installing.
이하에서 첨부한 도면을 참조하여 본 고안을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제5도는 본 고안의 실시예에 따른 스피커캐비넷의 구성도로서, 스피커캐비넷(1)의 내표면에 솜이나 유리섬유같은 기존의 섬유질흡음재(5)를 깔고 그 위에 다시 경량콘크리트(3)를 부착시킨 것이다. 참조부호 4는 막대 또는 격자상의 고정부재로서, 경량콘크리트(3)를 스피커캐비넷(1)에 직접 고착시키기 위해 고정부재(4)를 눕혀깔고 그 사이 공간에 섬유질흡음재(5)를 채워넣는 방식이다. 이처럼 서로 다른 매질로서 역할하는 섬유질흡음재(5) 및 경량콘크리트(3)를 중층고착할 경우, 그 재질이 갖는 고유한 흡음특성이 상호보완적으로 작용하여 흡음능력을 더욱 향상시킬 수 있다.5 is a configuration diagram of a speaker cabinet according to an embodiment of the present invention, the existing fibrous sound absorbing material (5) such as cotton or glass fiber on the inner surface of the speaker cabinet (1) and attaching the lightweight concrete (3) again on it It is. Reference numeral 4 is a rod or lattice fixing member that lays the fixing member 4 on its side and fills the fibrous sound absorbing material 5 in the space therebetween in order to fix the lightweight concrete 3 directly to the speaker cabinet 1. . As such, when the fibrous sound absorbing material 5 and the light weight concrete 3, which serve as different media, are laminated in the middle, the unique sound absorbing properties of the material may complement each other to further improve the sound absorbing ability.
특히 경량콘크리트(3)의 특성으로 인해, 스피커유니트(2)의 배면방사음이 경량콘크리트(3)의 미세한 구멍들을 통과하면서 마찰로 인해 열에너지로 전환되므로 불필요한 정재파가 제거되며, 스피커캐비넷(1)의 내표면에 밀착된 경량콘크리트(3)의 강성으로 인해 캐비넷자체의 진동도 감소한다.In particular, due to the characteristics of the light-weight concrete (3), the rear radiation of the speaker unit (2) is converted to thermal energy due to friction while passing through the fine holes of the light-weight concrete (3) is eliminated unnecessary standing waves, speaker cabinet (1) Due to the rigidity of the lightweight concrete (3) in close contact with the inner surface of the vibration of the cabinet itself is also reduced.
제3도는 본 고안에 따른 스피커시스템의 출력음압-주파수특성(b)을 종래의 경우와 비교한 것으로서, 산(7)와 골(8)이 두드러진 종래의 경우(a)에 비해 훨씬 나은 음질특성을 보여주고 있다.3 is a comparison of the output sound pressure-frequency characteristic (b) of the speaker system according to the present invention with the conventional case, and the sound quality characteristic is much better than the conventional case (a) with the peaks (7) and valleys (8) prominent. Is showing.
또한 가진기를 이용하여 동일한 진동음을 스피커캐비넷으로 방출시킨 후 주파수분석한 제4도의 모우드해석모형도에서 나타나듯이, 종래의 진동매트릭스선(a)에 비해 본 고안에 따른 스피커캐비넷의 진동매트릭스선(b)이 훨씬 변화가 적음을 알 수 있다.In addition, the vibration matrix line of the speaker cabinet according to the present invention is compared with the conventional vibration matrix line (a), as shown in the mode analysis diagram of FIG. You can see this much less change.
이상 설명한 바와 같이 본 고안에 따른 스피커캐비넷은 강성이 증가됨과 동시에 양호한 흡음성을 갖게 되므로 이상공진현상을 방지할 수 있는 개선점을 갖는다.As described above, the speaker cabinet according to the present invention has an improvement capable of preventing abnormal resonant phenomena since the rigidity is increased and the sound absorbing property is good.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92021172U KR0121620Y1 (en) | 1992-10-30 | 1992-10-30 | Speaker cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92021172U KR0121620Y1 (en) | 1992-10-30 | 1992-10-30 | Speaker cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940011312U KR940011312U (en) | 1994-05-27 |
| KR0121620Y1 true KR0121620Y1 (en) | 1998-08-01 |
Family
ID=19342946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92021172U KR0121620Y1 (en) | 1992-10-30 | 1992-10-30 | Speaker cabinet |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0121620Y1 (en) |
-
1992
- 1992-10-30 KR KR92021172U patent/KR0121620Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR940011312U (en) | 1994-05-27 |
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