KR101559658B1 - Speaker appartus - Google Patents
Speaker appartus Download PDFInfo
- Publication number
- KR101559658B1 KR101559658B1 KR1020140030966A KR20140030966A KR101559658B1 KR 101559658 B1 KR101559658 B1 KR 101559658B1 KR 1020140030966 A KR1020140030966 A KR 1020140030966A KR 20140030966 A KR20140030966 A KR 20140030966A KR 101559658 B1 KR101559658 B1 KR 101559658B1
- Authority
- KR
- South Korea
- Prior art keywords
- speaker
- passive radiator
- passive
- cabinet
- present
- Prior art date
Links
- 239000007769 metal material Substances 0.000 claims description 3
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000005236 sound signal Effects 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
- H04R1/02—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
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The present invention relates to a speaker device. A speaker device according to the present invention includes a speaker cabinet formed with openings at positions mutually opposed to each other, the speaker cabinet being formed with openings at positions mutually opposed to each other on the left side face and the right side face, A second speaker driver installed rearward from a rear opening of the speaker cabinet, and first and second passive radiators installed symmetrically to the left and right side openings of the speaker cabinet. According to the present invention, since the structure is simple and can have a low resonance point even if it is miniaturized according to the weight of two passive radiators, it is possible to provide a speaker device capable of reproducing a wide frequency band and downsizing.
Description
The present invention relates to a speaker device, and more particularly, to a speaker device using a pair of speaker drivers and two passive radiators.
A speaker or speaker device is an electromechanical transducer that converts electrical signals into sound. The loudspeaker can be classified into a horn type, a corn type, and the like depending on the form, and can be classified into a dynamic type, a magnetic type, a condenser type, and a crystal type according to the driving principle.
Speakers can be categorized according to the frequency of the sound generated. High-frequency sounds have a short wavelength and low-frequency sounds have a long wavelength. Generally speaking, a small-sized speaker is advantageous for reproduction of high- A large-sized speaker is advantageous for reproducing sound.
Therefore, if a speaker device can reproduce a wide-band sound in spite of its small size, it will be possible to reproduce a grand scale sound even at a small volume by connecting with various types of playback devices such as a mobile phone or a tablet computer.
Generally, to create a wide frequency reproduction band, the IC design, or DSP (Digital Signal Processor) in the amplifier, can raise the efficiency value in a specific frequency band to produce low frequency bass. However, it is difficult to expand the average sound pressure level to the desired frequency if the response frequency value is too low or too low in the frequency band for which the efficiency value is to be increased, which is lower than the limit value that the IC can amplify.
In recent years, products have been introduced that use broadband speakers using a passive radiator. The passive radiator operates in correspondence with the air pressure inside the speaker cabinet in which the diaphragm is changed by the movement of the woofer instead of the low sound-reflection type port. However, since the speaker device to which the passive radiator is applied is expensive, it is a structure that is complicated in structure and requires a minimum space, so that it is difficult to miniaturize and carry it.
Therefore, it is necessary to consider a speaker device having a small-sized speaker which is convenient to carry and has excellent sound field.
An object of the present invention is to provide a speaker device which is small in size and easy to carry while having excellent sound field.
According to an aspect of the present invention, there is provided a speaker device comprising: a speaker cabinet having an opening formed at a position facing a front surface and a rear surface facing each other, the speaker cabinet having an opening at a position opposite to the left and right sides; A second speaker driver installed rearward from the rear opening of the speaker cabinet, and a second speaker driver installed to the left and right openings of the speaker cabinet, And a second passive radiator.
The passive radiator may have a shape in which the center portion is convex outwardly, and a metal material may be used.
The first speaker driver may further include an acoustic duct for guiding acoustic energy radiated from the first and second speaker drivers to the first passive radiator and the second passive radiator, A first acoustic duct for guiding energy to the first and second passive radiators and a second acoustic duct for guiding the acoustic energy radiated from the second speaker driver to the first passive radiator and the second passive radiator, .
According to the present invention, since a pair of speaker drivers are disposed in opposite directions to each other and two passive radiators are used to vibrate the two passive radiators until the acoustic energy radiated to the rear surface of the speaker driver disappears, energy efficiency is excellent , The acoustic energy is radiated to the front, rear, left, and right sides of the speaker device, so that a sound field similar to an actual performance stage can be provided. Further, even if the structure is simple and small according to the weight of the two passive radiators, it can have a low resonance point, so that it is possible to provide a speaker device capable of reproducing a wide frequency band and miniaturizing it.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a speaker device according to an embodiment of the present invention;
2 is a front view of a speaker device according to an embodiment of the present invention;
3 is a side view of a speaker device according to an embodiment of the present invention, and
4 is a bottom plan view of a speaker device according to an embodiment of the present invention.
Hereinafter, the present invention will be described in detail with reference to the drawings.
2 is a front view of a speaker according to an embodiment of the present invention. FIG. 3 is a side view of a speaker device according to an embodiment of the present invention. 4 is a bottom projection view of a speaker device according to an embodiment of the present invention.
Referring to FIGS. 1 to 4, the speaker device according to the present invention will be described in terms of components according to the outline of the speaker device.
The
The
The first and second
The resonance of unnecessary reverberation frequencies can be reduced due to the convex internal structure of the
The
Since the first and second
Also, the
The
It should be noted that the speaker device according to the present invention is not limited to the configuration of the embodiments described above, but the embodiments described above may be modified such that all or some of the embodiments are selectively combined .
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.
110: speaker cabinet 120: first speaker driver
125: second speaker driver 130: first passive radiator
135: second passive radiator 140: first acoustic duct
145: Second acoustic duct
Claims (5)
A first speaker driver installed forward from a front opening of the speaker cabinet;
A second speaker driver installed rearward from a rear opening of the speaker cabinet;
First and second passive radiators installed symmetrically on a left side face opening and a right side face opening of the speaker cabinet;
A first acoustic duct for guiding sound energy radiated from the first speaker driver to the first passive radiator and the second passive radiator; And
And a second acoustic duct for directing the acoustic energy radiated from the second speaker driver to the first passive radiator and the second passive radiator,
Wherein the first and second speaker drivers are capable of outputting the same acoustic signals or outputting different acoustic signals, respectively.
Wherein the passive radiator has a shape in which the center portion is convex in the outward direction.
Wherein the passive radiator is made of a metal material.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140030966A KR101559658B1 (en) | 2014-03-17 | 2014-03-17 | Speaker appartus |
CN201590000364.8U CN206577396U (en) | 2014-03-17 | 2015-03-12 | Speaker unit |
PCT/KR2015/002380 WO2015141983A1 (en) | 2014-03-17 | 2015-03-12 | Speaker device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140030966A KR101559658B1 (en) | 2014-03-17 | 2014-03-17 | Speaker appartus |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20150108146A KR20150108146A (en) | 2015-09-25 |
KR101559658B1 true KR101559658B1 (en) | 2015-10-13 |
Family
ID=54144892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140030966A KR101559658B1 (en) | 2014-03-17 | 2014-03-17 | Speaker appartus |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR101559658B1 (en) |
CN (1) | CN206577396U (en) |
WO (1) | WO2015141983A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110475185B (en) * | 2019-08-13 | 2021-05-25 | 海能达通信股份有限公司 | Acoustic radiation assembly and sound production device |
TWI741928B (en) * | 2021-01-04 | 2021-10-01 | 富祐鴻科技股份有限公司 | Double-sided speaker |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5850460A (en) | 1994-09-01 | 1998-12-15 | Matsushita Electric Industrial Co., Ltd. | Bass speaker |
JP2004032040A (en) | 2002-06-21 | 2004-01-29 | Joji Nagaoka | Speaker system |
JP2005260625A (en) | 2004-03-12 | 2005-09-22 | Sanyo Electric Co Ltd | Speaker instrument |
US20080199033A1 (en) | 2007-02-16 | 2008-08-21 | William Andrew Decanio | High output sub-woofer |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5166973B2 (en) * | 2008-05-21 | 2013-03-21 | シャープ株式会社 | Speaker device and driving method thereof |
-
2014
- 2014-03-17 KR KR1020140030966A patent/KR101559658B1/en active IP Right Grant
-
2015
- 2015-03-12 WO PCT/KR2015/002380 patent/WO2015141983A1/en active Application Filing
- 2015-03-12 CN CN201590000364.8U patent/CN206577396U/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5850460A (en) | 1994-09-01 | 1998-12-15 | Matsushita Electric Industrial Co., Ltd. | Bass speaker |
JP2004032040A (en) | 2002-06-21 | 2004-01-29 | Joji Nagaoka | Speaker system |
JP2005260625A (en) | 2004-03-12 | 2005-09-22 | Sanyo Electric Co Ltd | Speaker instrument |
US20080199033A1 (en) | 2007-02-16 | 2008-08-21 | William Andrew Decanio | High output sub-woofer |
Also Published As
Publication number | Publication date |
---|---|
WO2015141983A1 (en) | 2015-09-24 |
KR20150108146A (en) | 2015-09-25 |
CN206577396U (en) | 2017-10-24 |
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