KR840002907Y1 - A speaker - Google Patents
A speaker Download PDFInfo
- Publication number
- KR840002907Y1 KR840002907Y1 KR2019830001741U KR830001741U KR840002907Y1 KR 840002907 Y1 KR840002907 Y1 KR 840002907Y1 KR 2019830001741 U KR2019830001741 U KR 2019830001741U KR 830001741 U KR830001741 U KR 830001741U KR 840002907 Y1 KR840002907 Y1 KR 840002907Y1
- Authority
- KR
- South Korea
- Prior art keywords
- speaker
- sound
- case
- sound wave
- baffle
- Prior art date
Links
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000037431 insertion Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000001902 propagating effect 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
- H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
- H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
-
- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
내용 없음.No content.
Description
제1도는 통상적인 음향기기중 카세트라디오의 참고사시도.1 is a reference perspective view of a cassette radio of a conventional acoustic device.
제2도는 본 고안의 일부절개 분해 사시도.2 is a partially exploded perspective view of the present invention.
제3도는 본 고안의 결합상태를 나타낸 단면도.3 is a cross-sectional view showing a coupling state of the present invention.
* 도면중 주요부분에 대한 부호설명* Code description of the main parts of the drawings
3 : 전방케이스 4 : 후방케이스3: front case 4: rear case
5 : 배플판 7 : 삽착부5: baffle plate 7: insertion part
8 : 스피커 설치공 9 : 음파차단구8: speaker installation 9: sound block
본 고안은 카세트 라디오등, 케이스의 전면판에 스피커가 설치되는 통상의 음향기기에 있어서, 스피커의 후방으로 파생된 음파가 카세트도어나 이어폰의 잭삽입홀, 또는 카운터등의 설치로인해 상기 전면판에 생긴 틈새로 직접 빠져나와 스피커의 전방으로 전파되는 음파와 서로 많은 간섭작용을 일으킴으로써 스피커의 저음재생효과가 크게 저하되는 것을 방지함과 동시에 스피커 몸체를 케이스에 스크류우등을 사용치 않고도 견고히 고정시킬 수 있도록한 스피커의 배면 음파차단구에 관한 것이다.The present invention is a conventional acoustic device in which the speaker is installed on the front plate of the case, such as a cassette radio, the sound wave derived from the rear of the speaker is caused by the installation of the jack insertion hole of the cassette door, earphone, or counter By interfering directly with the gaps in the speaker and causing a lot of interference with the sound waves propagating to the front of the speaker, the speaker's bass reproduction effect is not greatly deteriorated, and the speaker body is firmly fixed to the case without using a screw lamp. It is related to the sound blocking block of the back of the speaker.
음향기기에 있어서 스피커가 취부고정되는 케이스의 전면판을 통상적으로 배플(BAFFLE)이라 칭하고 있는데, 이러한 배플의 역할은 스피커내에 설치된 진동판을 중심으로 스피커의 전후면으로 동시파생되는 전후 각 음파간을 차단하여 서로간의 간섭상쇄작용을 배제함으로써 정상적인 음압을 유지함과 동시에 스피커의 주파수 특성을 최대한 살리고 풍부한 저음을 재생할 수 있게 해주는 것등의 작용을 하는 것이며 스피커는 바로 이러한 배플과의 조합설치에 의해 그 성능이 최대한 발휘되는 것이다.In sound equipment, the front plate of the case where the speaker is fixed is commonly referred to as baffle, and the role of this baffle is to block the front and rear sound waves simultaneously derived from the front and rear surfaces of the speaker with respect to the diaphragm installed in the speaker. By maintaining the normal sound pressure by eliminating the interference cancellation effect between each other, while maximizing the frequency characteristics of the speaker and reproducing rich bass sound, the speaker has its own performance by the combination with the baffle. To the fullest.
일반적으로 이러한 배플판은 이에 취부되는 스피커를 중심으로 하여 스피커의 상하좌우로 넓게 형성될수록 파장이긴 저주파수의 음파까지 효과적으로 차단할 수 있으므로 풍부한 저음을 재생하기에는 이상적이나 현실적으로는 이를 한없이 크게 할 수는 없는 것이며, 그렇게 때문에 이 고안이 속하는 음향기기분야에서는 상기 배플이 여러가지고 적합히 변형 설계하게 되는 것이고, 음향기기의 캐비넷은 어떤 면으로 볼 때 상술한 배플판이 상자형으로 굴곡밀폐 형성된 것이라 볼 수 있다.In general, the baffle plate is ideally suited to reproduce rich bass, but can not be made indefinitely, since the baffle plate is formed to be wider in the top, bottom, left, and right of the speaker, and effectively blocks even the low frequency sound waves having long wavelengths. Therefore, the baffle is variously and suitably designed in the acoustic device field to which the present invention belongs, and the cabinet of the sound device can be considered that the baffle plate described above is bent and closed in a box shape.
이와 같은 관점에서 볼 때 상술한 배플은 수음점(受音點)을 기준으로하여 스피커의 후방으로 파생된 음파가 앞쪽으로 파생된 음파와함께 수음점까지 배플의 크기에 해당되는 거리만큼 우회도달케하는 어떠한 구조물이라 할 수 있겠는데 이 우회거리가 길면 길수록 스피커 전후방 음파간의 상호 간섭작용은 현저히 줄어들게 되는 것이며, 일개 스피커가 재생할 수 있는 가청음파의 최저역 주파수, 즉, 저음 재생한 계주파수를 "f"라하고, 스피커에서 발생한 음파의 파장을 "λ", 상술한 배플로인한 스피커 후면 파생음파의 우회거리를 "L", 음속을 "C"라하면과 같은 관계가 성립된다.From this point of view, the above-mentioned baffle is any sound that causes the sound waves derived from the rear of the speaker to reach the sound absorbing point by a distance corresponding to the size of the baffle with the sound waves derived from the front with respect to the sound absorbing point. The longer the bypass distance is, the less mutual interference between the front and rear sound waves of the speaker is, and the lowest frequency of the audible sound wave that can be reproduced by one speaker, that is, the bass frequency reproduced by the bass, is called "f". If the wavelength of the sound wave generated from the speaker is "λ", the bypass distance of the above-mentioned baffle-induced speaker rear wave is "L" and the sound velocity is "C". Relationship is established.
이와 같은 관계식은 이 기술분야에서 주지된 것인데 여기에서 저음재생한 계주파수(f)가 작아진다는 것은 그만큼 더 낮은 주파수의 저음이 풍부히 재생된다는 의미가 되고 이 저음 재생한계 주파수(f)의 값은 상기 관계식중 우측변의 변수에 따라 변하하되 특히 배플로인한 후면파생음파의 우회거리 "L"이 커질수록 상기 "f"의 값이 작아져 스피커의 저음재생 능력이 좋아질 것이다.Such relations are well known in the art, where the lower frequency (f) of the bass reproduction means that the lower frequencies of the lower frequencies are reproduced in abundance, and the value of the bass limit frequency (f) is According to the variable on the right side of the relational expression, in particular, as the bypass distance "L" of the back-derived sound wave blobed in becomes larger, the value of "f" becomes smaller and the bass reproduction ability of the speaker will be improved.
이러한 한편 상기 배플판의 몸체에 음파가 통과할 수 있는 어떠한 통공이 뚫려 있다면 상기 통공을 통해 스피커 전후면의 음파중일부가 자유로이 통과하여 서로 직접 간섭케 됨으로써 전술한 배플판의 기능이 크게 저하케되며, 카세트라디오등에 있어서는 상기 배플에 해당하는 그 전면판에 카세트도어나 잭삽입홀, 카운터등을 설치해줌으로 인한 틈새 내지 간극이 상기한 통공에 해당되는 것이다.On the other hand, if any of the through holes through which the sound waves can pass through the body of the baffle plate, some of the sound waves on the front and rear of the speaker freely pass through the through holes directly interfering with each other, thereby greatly deteriorating the function of the aforementioned baffle plate. In the case of a cassette radio or the like, a gap or a gap caused by installing a cassette door, a jack insertion hole, a counter or the like on the front plate corresponding to the baffle corresponds to the above-mentioned through hole.
따라서 종래에는 이러한 음향기기의 스피커 후방이 대부분 개활상태로 설치되므로 스피커의 후방으로 파생된 음파가 상기 스피커와 짧은 거리상에 있는 카세트도어, 잭삽입홀, 카운터등으로 인한 전면판의 틈새로 직접 빠져나가 스피커 전방으로 방출된 음파를 크게 간섭케되고, 이로인해 스피커의 음량이 감소함과동시에 저음재생 효과가 크게 저하되는 것등의 폐단이 있었다.Therefore, conventionally, the rear of the speaker of such an acoustic device is mostly installed in the open state, so that the sound waves derived from the rear of the speaker directly exit the gap of the front panel due to the cassette door, the jack insertion hole, the counter, and the like, which are at a short distance from the speaker. The sound wave emitted to the front of the speaker was greatly interfered, which resulted in a decrease in the volume of the speaker and a significant decrease in the bass reproduction effect.
본 고안은 이러한 배경에서 안출한 것으로 스피커가 고정되는 케이스전면 배플판의 후방으로 통형의 음파차단 우회구를 스피커의 선단프레임에 접설시켜 줌으로써 스피커의 후방으로 파생방출된 음파가 수음점(受音點)까지 상기 차단구의 길이만큼 긴 거리를 우회도달케하여 전후방 음파간의 간섭을 크게 배제하고, 동시에 스피커를 케이스에 스크류우없이 고정할 수 있도록한 것이다.The present invention was devised in such a background, and the sound wave derived from the rear of the speaker was absorbed by attaching a cylindrical sound blocking bypass to the rear frame of the speaker to the rear of the case front baffle plate where the speaker is fixed. By bypassing the distance as long as the length of the block until it greatly excludes the interference between the front and rear sound waves, and at the same time to fix the speaker to the case without screws.
이를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다. 즉, 서로 결합되는 전후방 케이스(3)(4)로 되고, 전방케이스(3)의 전면 배플판(5)의 스피커 설치공(8) 내측에 그 전방을 향하도록 스피커(1)를 취부고정토록한 것에 있어서, 상기 스피커 설치공(8)의 내주연부에 스피커(1)의 선단프레임(6)을 삽착할 수 있는 삽착부(7)를 형성하고, 후방케이스(4)의 배면판으로부터 상기 스피커(1)를 향해 통형의 음파차단구(9)를 형성하되 상기 음파차단구(9)의 선단을 스피커프레임(6)의 배면주연에 접설시켜 상기 스피커프레임(6)을 삽착부(7)와 음파차단구(9)의 선단부 사이에서 협지고정토록하여서 된 것이며, 미설명부호 2는 카세트 라디오, 10은 카세트도어, 11은 잭삽입홀, 12는 카운터이다.When described in detail based on the accompanying drawings as follows. That is, the front and rear cases (3) and (4) are coupled to each other, and the speaker 1 is fixed so as to face the front side inside the speaker installation hole 8 of the front baffle plate 5 of the front case 3. In one embodiment, an inserting portion (7) for inserting the front end frame (6) of the speaker (1) is formed in the inner circumference of the speaker mounting hole (8), and the speaker is formed from the rear plate of the rear case (4). A cylindrical acoustic wave shield 9 is formed toward (1), and the front end of the acoustic wave barrier hole 9 is connected to the rear circumference of the speaker frame 6 so that the speaker frame 6 is inserted into the inserting part 7. It is made to be narrowly fixed between the distal end portions of the sound wave block 9, and reference numeral 2 denotes a cassette radio, 10 a cassette door, 11 a jack insertion hole, and 12 a counter.
상기 전후방 케이스(3)(4)는 음향기기의 케이스 자체일수도 있고 혹은 그 자체 독립적으로 형성된 것일수도 있다.The front and rear cases 3 and 4 may be a case of the acoustic device itself or may be formed independently of itself.
이와 같이 구성된 본 고안은 스피커(1)의 후방으로 파생된 음파가 상기 음파차단구(9)로 인해 케이스 전면 배플판(5)의 통공, 즉 전술한 카세트도어(10), 잭삽입홀(11), 카운터(12) 등으로 인한 틈새를 통해 스피커의 전방으로 직접 빠져나가지 못하고 상기 차단구(9)의 길이만큼 우회하여 스피커 전방의 수음점에 도달케 됨으로써 스피커(1) 전후방 음파간의 간섭 상쇄작용을 현저히 줄일 수 있고, 이로써 스피커의 저음 재생 효과가 높아지며, 동시에 상기 스피커몸체는 그 선단의 프레임(6)이 전방케이스(3)의 삽착부(7)와 차단구(9)의 선단부 사이에서 견고히 협지되므로 스피커를 설치고정하는 데에 스크류우등 별도의 고정부재가 전혀 필요 없는 것등의 효과를 지닌 것이다.According to the present invention configured as described above, the sound wave derived from the rear of the speaker 1 is passed through the case front baffle plate 5 due to the sound wave blocking holes 9, that is, the aforementioned cassette door 10 and the jack insertion hole 11. ), Bypass the front of the speaker through the gap caused by the counter 12, etc., bypassing the length of the block 9, and reaching the sound receiving point in front of the speaker, thereby canceling the interference between the front and rear sound waves of the speaker 1. It is possible to remarkably reduce, thereby increasing the bass reproduction effect of the speaker, and at the same time, the speaker body is firmly sandwiched between the insert portion 7 of the front case 3 and the tip portion of the blocking opening 9 by the frame 6 at the front end thereof. Therefore, there is no need for a separate fixing member such as a screw to secure the speaker installation.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019830001741U KR840002907Y1 (en) | 1983-02-28 | 1983-02-28 | A speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019830001741U KR840002907Y1 (en) | 1983-02-28 | 1983-02-28 | A speaker |
Publications (2)
Publication Number | Publication Date |
---|---|
KR840004530U KR840004530U (en) | 1984-09-20 |
KR840002907Y1 true KR840002907Y1 (en) | 1984-12-29 |
Family
ID=19228755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR2019830001741U KR840002907Y1 (en) | 1983-02-28 | 1983-02-28 | A speaker |
Country Status (1)
Country | Link |
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KR (1) | KR840002907Y1 (en) |
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1983
- 1983-02-28 KR KR2019830001741U patent/KR840002907Y1/en not_active IP Right Cessation
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Publication number | Publication date |
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KR840004530U (en) | 1984-09-20 |
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