WO2014178576A1 - 스피커 장치 - Google Patents
스피커 장치 Download PDFInfo
- Publication number
- WO2014178576A1 WO2014178576A1 PCT/KR2014/003640 KR2014003640W WO2014178576A1 WO 2014178576 A1 WO2014178576 A1 WO 2014178576A1 KR 2014003640 W KR2014003640 W KR 2014003640W WO 2014178576 A1 WO2014178576 A1 WO 2014178576A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speaker
- duct
- cabinet
- space
- speaker cabinet
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
- H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
- H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material 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
- H04R1/20—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
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
- H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type 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
-
- 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
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
- H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line 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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
Definitions
- the present invention relates to a speaker device, and more particularly, to a speaker device having a maze structure duct part capable of realizing low sound.
- a speaker or speaker device is an electromechanical transducer that converts electrical signals into sounds. Speakers can be classified into horn type and cone type according to their shape, and can be classified into dynamic type, magnetic type, condenser type and crystal type according to driving principle.
- Loudspeakers can be classified according to the range of sound generated. High-frequency sounds have short wavelengths and low-frequency sounds have long wavelengths. Large loudspeakers are advantageous for sound reproduction.
- the speaker device may be connected to various types of playback devices such as a mobile phone or a tablet computer to reproduce a grand scale sound even at a small volume.
- the amplifier can use IC design, or Digital Signal Processor (DSP), to increase efficiency in a specific frequency band to produce low frequency bass.
- DSP Digital Signal Processor
- the passive radiator operates in response to the air pressure inside the speaker cabinet where the diaphragm is replaced by the woofer's movement in place of the low reflection port.
- a loudspeaker device in which the passive radiator is applied is very expensive and very expensive.
- An object of the present invention is to provide a speaker device that is excellent in sound field, which can realize sounds of a small size and low frequency band.
- the speaker device for achieving the above object is a front of the speaker cabinet, the speaker cabinet which is formed with an opening in the front, the speaker driver installed toward the front from the speaker cabinet opening, and the radiated acoustic energy of the speaker driver It includes a duct portion having a maze structure leading to the front duct hole formed in the rear duct hole formed in the rear.
- the duct part may include a space between a first plate disposed to face the front surface of the speaker cabinet and a first space portion, a space between the first plate and a second plate disposed to face the second plate, and the second space. It may include a connection pipe connecting the hole formed in the portion and the rear duct hole.
- the sound of the low frequency band can be realized by using a duct part having a maze structure for inducing radiated acoustic energy of the speaker driver to the duct hole formed in the front of the speaker cabinet and the duct hole formed in the rear of the speaker cabinet. Accordingly, in a small speaker device using a small speaker driver and a speaker cabinet, a grand scale sound can be reproduced at a relatively low cost. In addition, it is possible to provide a speaker having a high response speed of sound by inducing radiated acoustic energy through the duct.
- FIG. 1 is a view showing the appearance of a speaker device according to an embodiment of the present invention.
- FIG. 2 is a front view of a speaker device according to an embodiment of the present invention.
- FIG. 3 is a rear view of a speaker device according to an embodiment of the present invention.
- Figure 9 is a graph showing the results of the experiment using the speaker device according to an embodiment of the present invention.
- FIG. 1 is a view showing the appearance of a speaker according to an embodiment of the present invention
- Figure 2 is a front view of a speaker according to an embodiment of the present invention
- Figure 3 is a back of the speaker device according to an embodiment of the present invention It is also. Referring to Figures 1 to 3, it will be described in terms of the components according to the appearance of the speaker device according to the present invention.
- the speaker device 100 includes a speaker cabinet 110 having an opening formed at a front surface thereof, and a speaker driver 120 installed at an opening of the speaker cabinet 110 in a forward direction. Front duct holes 130a and 130b are formed in the front of the speaker cabinet 110.
- the speaker cabinet 110 may be made of wood or plastics.
- the lower end of the rear of the speaker cabinet 110 is provided with a terminal unit 140 having a connection terminal for input and output of power, audio signals and the like.
- the rear duct hole 150 is formed at the rear of the speaker cabinet 110. .
- the inside of the speaker cabinet 110 guides the radiated acoustic energy of the speaker driver 120 to the front duct holes 130a and 130b and the rear duct hole 150, so that the duct of the labyrinth structure can realize low frequency band bass sound.
- a part (not shown) is provided.
- the detailed structure of the duct portion installed in the speaker cabinet 110 will be described later.]
- 4 to 7 are views for explaining the structure of the duct portion in the speaker device according to an embodiment of the present invention.
- the duct unit 160 is divided into a first plate 161 and a second plate 163 disposed to face the front surface of the speaker cabinet 110, and thus the front surface and the first plate of the speaker cabinet 100.
- the space between the first space portion 165 which is a space between the spaces 161, and the space between the first plate 161 and the second plate 163, consists of two space layers of the second space portion 167.
- the first plate 161 and the second plate 163 are provided with connection passages for inducing radiated acoustic energy between the first space portion 165 and the second space portion 167.
- the duct 160 includes a connection pipe 169 for connecting the hole formed in the second plate 163 and the rear duct hole 150.
- the radiated acoustic energy of the speaker driver 120 moves from the second space portion 167 to the lower end of the first space portion 165 through both side surfaces of the speaker driver 120 (a )
- the radiated acoustic energy induced at the lower end of the first space 165 moves back to the second space 167 along the path b that rotates in the clockwise direction, and the second The space 167 moves upward along the path c which rotates clockwise again.
- the radiated acoustic energy moved upward in the second space 167 is partially radiated in the front direction through the front tuck hole 130b (d), and in part, the connection pipe ( 169 and the rear duct hole 150 is radiated in the rear direction (e).
- the radiated acoustic energy is guided in the same order as the paths a ⁇ b ⁇ c ⁇ d ⁇ e, partly output to the front tact holes 130a and 130b, and partly to the rear duct hole 150.
- the duct unit 160 of the labyrinth structure may implement low sound by inducing radiated acoustic energy to the outside by using a very long acoustic passage through two spatial layers.
- FIG. 8 illustrates an equivalent circuit for a speaker device according to an embodiment of the present invention.
- the speaker device 100 induces radiated acoustic energy to the outside at an opposite angle to each other through the front duct holes 130a and 130b and the rear duct holes 150, thereby providing a two-sided passive radiator. ) And similar to those installed, maximize the Port mass C MEP value. Accordingly, low sound can be realized by using a small speaker driver.
- Figure 8 is a graph showing the results of the experiment using the speaker device according to an embodiment of the present invention.
- FIG. 8 the result of the experiment without the DSP in front of the front 0.5m of the speaker driver 120 is shown.
- a response value of 65 dB can be obtained at a frequency of 35 Hz using a speaker driver of about 2.2 inches.
- a DSP when a DSP is added to the speaker device 100, a response such as a graph waveform indicated by 203 can be obtained, so that a wideband signal including a low frequency band can be reproduced. If there is no labyrinth duct 160, the signal of the low frequency band is weak, so that the broadband signal cannot be reproduced even if a DSP is used.
- the speaker device according to the present invention is not limited to the configuration of the embodiments described as described above, the above embodiments are selectively combined all or part of each embodiment so that various modifications can be made It may be configured.
- the present invention can be used for a speaker device.
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)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
Description
Claims (5)
- 전면에 개구부와 형성되어 있는 스피커 캐비닛;상기 스피커 캐비닛 개구부에서 전방을 향하여 설치되는 스피커 드라이버; 및스피커 드라이버의 방사 음향 에너지를 상기 스피커 캐비닛의 전면에 형성된 전면 덕트홀과 후면에 형성된 후면 덕트홀로 유도하는 미로 구조를 가지는 덕트부를 포함하는 스피커 장치.
- 제1항에 있어서,상기 덕트부는, 상기 스피커 캐비닛의 전면과 대향 배치된 제1판 사이의 공간이 제1 공간부;상기 제1판과 대향 배치된 제2판 사이의 공간이 제2 공간부; 및상기 제2 공간부에 형성된 홀과 상기 후면 덕트홀을 연결하는 연결관을 포함하는 것을 특징으로 하는 스피커 장치.
- 제2항에 있어서,상기 덕트부는, 상기 제1 및 제2 공간부 사이를 오가는 미로 구조의 이동 경로를 통해 상기 방사 음향 에너지 상기 전면 덕트홀 및 상기 후면 덕트홀로 유도하는 것을 특징으로 하는 스피커 장치.
- 제1항에 있어서,상기 스피커 캐비닛의 후면에는 전원 및 오디오 신호의 입출력을 위한 연결단자가 배치된 단자부가 배치되는 것을 특징으로 하는 스피커 장치.
- 제1항에 있어서,상기 오디오 신호에서 특정 주파수 대역의 신호를 보강하여, 상기 스피커 드라이버로 제공하는 DSP를 더 포함하는 것을 특징으로 하는 스피커 장치.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480011465.5A CN105493517A (zh) | 2013-04-30 | 2014-04-25 | 音响装置 |
US14/921,428 US20160044404A1 (en) | 2013-04-30 | 2015-10-23 | Speaker apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0047876 | 2013-04-30 | ||
KR1020130047876A KR101462343B1 (ko) | 2013-04-30 | 2013-04-30 | 스피커 장치 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/921,428 Continuation US20160044404A1 (en) | 2013-04-30 | 2015-10-23 | Speaker apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014178576A1 true WO2014178576A1 (ko) | 2014-11-06 |
Family
ID=51843644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2014/003640 WO2014178576A1 (ko) | 2013-04-30 | 2014-04-25 | 스피커 장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160044404A1 (ko) |
KR (1) | KR101462343B1 (ko) |
CN (1) | CN105493517A (ko) |
WO (1) | WO2014178576A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950010678A (ko) * | 1993-09-02 | 1995-04-28 | 이헌조 | 콘페이퍼가 부착된 스피커 시스템 |
KR970058268A (ko) * | 1995-12-22 | 1997-07-31 | 배순훈 | 미로형과 위상반전형을 결합한 스피커시스템 |
JPH11146474A (ja) * | 1997-11-12 | 1999-05-28 | Sony Corp | スピーカ装置 |
JP2003079835A (ja) * | 2001-09-13 | 2003-03-18 | Newgin Corp | 遊技機用スピーカシステム |
KR20100086872A (ko) * | 2009-01-23 | 2010-08-02 | 범진시엔엘 주식회사 | 스피커 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
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US4875546A (en) * | 1988-06-02 | 1989-10-24 | Teledyne Industries, Inc. | Loudspeaker with acoustic band-pass filter |
US5714721A (en) * | 1990-12-03 | 1998-02-03 | Bose Corporation | Porting |
US5514841A (en) * | 1994-03-30 | 1996-05-07 | Rochon; Donald C. | Reflex compression valve - divided chamber loudspeaker cabinet |
US5471019A (en) * | 1994-12-29 | 1995-11-28 | Sounds Resources, Inc. | Multiple chamber loudspeaker system |
US5821471A (en) * | 1995-11-30 | 1998-10-13 | Mcculler; Mark A. | Acoustic system |
US5657202A (en) * | 1996-01-31 | 1997-08-12 | Ma; Hsi-Kuang | Combination of computer mainframe housing, sound producing unit, and mainframe unit |
US6431309B1 (en) * | 2000-04-14 | 2002-08-13 | C. Ronald Coffin | Loudspeaker system |
US6862360B2 (en) * | 2001-04-19 | 2005-03-01 | Jen-Hui Tsai | Speaker system |
US6973994B2 (en) * | 2002-11-04 | 2005-12-13 | Mackin Ian J | Apparatus for increasing the quality of sound from an acoustic source |
JP4767164B2 (ja) * | 2004-04-13 | 2011-09-07 | パナソニック株式会社 | スピーカ装置 |
DE102006058009B3 (de) * | 2006-12-08 | 2008-02-14 | D & B Audiotechnik Ag | Lautsprechersystem mit reduzierter rückseitiger Schallabstrahlung |
JP2009260899A (ja) * | 2008-04-14 | 2009-11-05 | Masaaki Takenaka | スピーカー |
CN201345722Y (zh) * | 2008-12-15 | 2009-11-11 | 元点音响(厦门)有限公司 | 一种低频扩展装置 |
TWM358490U (en) * | 2009-01-19 | 2009-06-01 | Jen-Hui Tsai | Sound box of speaker |
TWM358489U (en) * | 2009-01-19 | 2009-06-01 | Jen-Hui Tsai | Stereo speakers |
CN201479351U (zh) * | 2009-07-22 | 2010-05-19 | 张高 | 一种提升低频重放的音箱结构 |
CN102209285A (zh) * | 2010-03-31 | 2011-10-05 | 鸿富锦精密工业(深圳)有限公司 | 音箱 |
JP5611075B2 (ja) * | 2011-02-02 | 2014-10-22 | 株式会社オーディオテクニカ | スピーカ用エンクロージャおよびスピーカシステム |
US8385575B2 (en) * | 2011-06-28 | 2013-02-26 | Shu-Fang Hu | Reflex enclosure |
-
2013
- 2013-04-30 KR KR1020130047876A patent/KR101462343B1/ko active IP Right Grant
-
2014
- 2014-04-25 WO PCT/KR2014/003640 patent/WO2014178576A1/ko active Application Filing
- 2014-04-25 CN CN201480011465.5A patent/CN105493517A/zh active Pending
-
2015
- 2015-10-23 US US14/921,428 patent/US20160044404A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950010678A (ko) * | 1993-09-02 | 1995-04-28 | 이헌조 | 콘페이퍼가 부착된 스피커 시스템 |
KR970058268A (ko) * | 1995-12-22 | 1997-07-31 | 배순훈 | 미로형과 위상반전형을 결합한 스피커시스템 |
JPH11146474A (ja) * | 1997-11-12 | 1999-05-28 | Sony Corp | スピーカ装置 |
JP2003079835A (ja) * | 2001-09-13 | 2003-03-18 | Newgin Corp | 遊技機用スピーカシステム |
KR20100086872A (ko) * | 2009-01-23 | 2010-08-02 | 범진시엔엘 주식회사 | 스피커 |
Also Published As
Publication number | Publication date |
---|---|
KR20140129511A (ko) | 2014-11-07 |
KR101462343B1 (ko) | 2014-12-04 |
US20160044404A1 (en) | 2016-02-11 |
CN105493517A (zh) | 2016-04-13 |
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