KR20150143276A - 2 way bluetooth speaker - Google Patents

2 way bluetooth speaker Download PDF

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Publication number
KR20150143276A
KR20150143276A KR1020150027170A KR20150027170A KR20150143276A KR 20150143276 A KR20150143276 A KR 20150143276A KR 1020150027170 A KR1020150027170 A KR 1020150027170A KR 20150027170 A KR20150027170 A KR 20150027170A KR 20150143276 A KR20150143276 A KR 20150143276A
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KR
South Korea
Prior art keywords
speaker
bluetooth
case
tweeter
woofer
Prior art date
Application number
KR1020150027170A
Other languages
Korean (ko)
Inventor
김지훈
고영로
Original Assignee
주식회사 이엠텍
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
Application filed by 주식회사 이엠텍 filed Critical 주식회사 이엠텍
Publication of KR20150143276A publication Critical patent/KR20150143276A/en

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a Bluetooth speaker that is connected to another device using Bluetooth to reproduce sound.
The present invention provides a 2-way Bluetooth speaker including a case, a PCB including a control unit having a Bluetooth module mounted in the case, a woofer speaker for low-frequency reproduction, and a tweeter speaker for high-frequency reproduction.

Description

Two Way Bluetooth Speaker {2 WAY BLUETOOTH SPEAKER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a Bluetooth speaker that is connected to another device using Bluetooth to reproduce sound.

Bluetooth refers to a short-range wireless technology standard for exchanging information between mobile devices such as mobile phones, notebooks, earphones, and headphones. It is used when low-power wireless connections are needed in very short distances, typically around 10 meters. For example, if you use a Bluetooth headset, you can listen to the music of your MP3 player in your pocket without the hassle of cables.

Conventionally, Bluetooth headsets have been used to connect a mobile phone with Bluetooth and make calls without using hands while driving.

Meanwhile, as smartphones and tablet PCs become popular, it becomes possible to enjoy movies and music using smartphones and tablet PCs regardless of the place. However, due to the limitations of microphones built into smartphones and tablet PCs, it was impossible to reproduce high-quality sound. To compensate for these drawbacks, a Bluetooth speaker connected to a smartphone or tablet PC with Bluetooth can be used.

However, external Bluetooth speakers consisted only of midrange speakers, which had a disadvantage in that sound quality was somewhat deteriorated.

Korean Patent No. 10-830556

SUMMARY OF THE INVENTION It is an object of the present invention to provide a 2-way Bluetooth speaker having a tweeter speaker and a woofer speaker.

The present invention provides a 2-way Bluetooth speaker including a case, a PCB including a control unit having a Bluetooth module mounted in the case, a woofer speaker for low-frequency reproduction, and a tweeter speaker for high-frequency reproduction.

In another aspect of the present invention, the woofer speaker is located at a lower portion of the case and emits sound downward, and the tweeter speaker is located at an upper portion of the case and emits sound upward. .

According to another aspect of the present invention, there is provided a 2-way Bluetooth speaker, wherein the case is formed with an acoustic lens facing the tweeter speaker at a predetermined interval.

According to another embodiment of the present invention, there is provided a 2-way Bluetooth speaker, further comprising a microphone formed on an upper surface of the case, wherein the PCB includes a communication module to provide a calling function.

According to another embodiment of the present invention, a plurality of microphones are formed at equal intervals, and the controller uses only a signal of a microphone to which the largest signal is input, as an input value.

In another aspect of the present invention, the controller controls the speaker to not output sound to the tweeter speaker when the call function is activated.

In another aspect of the present invention, there is provided a 2-way Bluetooth speaker, wherein the tweeter speaker is an enclosure type speaker in which no ventilation hole is formed.

In another aspect of the present invention, there is provided a 2-way Bluetooth speaker, which includes a woofer speaker enclosure coupled to the case and blocking the woofer speaker and the tweeter speaker.

In another aspect of the present invention, a PCB is disposed between a woofer speaker and a tweeter speaker, and a PCB, a woofer speaker, a PCB, and a tweeter speaker are connected through FPCB, respectively.

In another aspect of the present invention, there is provided a 2-way Bluetooth speaker, further comprising a battery connected to the PCB.

According to another embodiment of the present invention, there is provided a 2-way Bluetooth speaker, which further comprises a charging jack for charging the battery.

In another aspect of the present invention, there is provided a 2-way Bluetooth speaker, further comprising an NFC antenna module connected to the PCB.

According to another aspect of the present invention, there is provided a Bluetooth speaker, wherein the case is formed with an acoustic lens facing the woofer speaker at a predetermined interval.

According to another aspect of the present invention, there is provided a Bluetooth speaker, further comprising a dummy mass provided at a lower portion of the case for preventing vibration due to a sound pressure during sound reproduction.

According to another aspect of the present invention, there is provided a Bluetooth speaker, wherein the case is formed with an acoustic lens facing the woofer speaker at a predetermined distance, and the dummy mass is positioned below the acoustic lens.

The present invention also provides a multi-channel speaker system including at least two main speakers, each of which includes a Bluetooth speaker and a Bluetooth speaker connected to each other via a separate Bluetooth channel.

The 2WAY Bluetooth speaker provided by the present invention has an advantage of improving the sound reproduction performance by including a tweeter speaker for a high-frequency range and a woofer speaker for a low-frequency range.

1 is an exploded view of a 2WAY Bluetooth speaker according to an embodiment of the present invention,
2 is a perspective view of a 2WAY Bluetooth speaker according to an embodiment of the present invention,
3 is a cross-sectional view of a 2-way Bluetooth speaker according to an embodiment of the present invention,
4 is a plan view of a 2-way Bluetooth speaker according to an embodiment of the present invention,
FIG. 5 is a perspective view of a tweeter speaker of a 2-way Bluetooth speaker according to an embodiment of the present invention,
FIG. 6 is a perspective view of a tweeter speaker of a 2-way Bluetooth speaker according to an embodiment of the present invention,
FIG. 7 is a sectional view of a tweeter speaker of a 2-way Bluetooth speaker according to an embodiment of the present invention;
FIG. 8 is a perspective view of a 2-way Bluetooth speaker according to an embodiment of the present invention, with an upper case and a tweeter speaker removed;
9 is a view showing a main PCB of a 2WAY Bluetooth speaker, a tweeter speaker and a woofer speaker connected to each other by FPCB according to an embodiment of the present invention,
10 is a view illustrating an input terminal formed in a lower case of a 2WAY Bluetooth speaker according to an embodiment of the present invention,
FIG. 11 is a schematic view illustrating a multi-channel speaker system using a plurality of 2-way Bluetooth speakers according to an embodiment of the present invention; FIG.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

FIG. 1 is an exploded view of a 2-way Bluetooth speaker according to an embodiment of the present invention, FIG. 2 is a perspective view of a 2-way Bluetooth speaker according to an embodiment of the present invention, Fig.

The 2WAY Bluetooth speaker according to an embodiment of the present invention includes a case including a top case 110 and a bottom case 120 and including a speaker 200, a woofer speaker 300, a woofer speaker 300, A main PCB (not shown) for controlling the upper and lower woofer speaker enclosures 410 and 420, the tweeter speaker 200 and the woofer speaker 300 to surround the woofer speaker 300 in order to prevent the sound of the tweeter speaker 200 from interfering with each other. A battery 600 connected to the main PCB 500 to supply power to the main PCB 500 and a dummy mass 800 installed in the lower case 120 to prevent the 2WAY Bluetooth speaker from vibrating during sound reproduction of high sound pressure, . The tweeter speaker 200 is responsible for sound reproduction in the high-frequency range, and the woofer speaker 300 is a 2-way speaker for reproducing sound in the low-frequency range, and the sound can be faithfully reproduced.

Referring to FIG. 2, in the upper case 110 of the 2WAY Bluetooth speaker according to the embodiment of the present invention, a sound emitting hole 112 for emitting a high-frequency sound reproduced by the tweeter speaker 200 is formed, In the case 120, a sound emitting hole 122 is formed to emit low-frequency sounds reproduced by the woofer speaker 300. [ That is, the upper part of the speaker is in the form of a high-frequency band and the lower part thereof is in a low-frequency band.

3, an upper case 110 on which a tweeter speaker 200 is installed is provided with an acoustic lens 114 on an upper surface facing the tweeter speaker 200 in order to evenly emit a high-frequency sound reproduced by the tweeter speaker 200 Is formed. The acoustic lens 114 has a cone shape whose center portion protrudes downward, and guides the sound emitted from the tweeter speaker 200 to be reflected by the protrusion to the sound emission hole 112. With this structure, the nondirectionality of the tweeter speaker 200 can be enhanced. In order to further improve the omnidirectionality of the tweeter speaker 200, the seating end 116 where the tweeter speaker 200 is seated is also the lowest in the center portion where the tweeter speaker 200 is seated, Is preferably formed in a cone shape increasing in height.

4 is a top view of a 2WAY Bluetooth speaker in accordance with an embodiment of the present invention. A microphone 118 is formed on the upper surface of the upper case 110 of the Bluetooth speaker and is capable of providing a hands-free calling function by pairing with a cellular phone or the like. At this time, a plurality of microphones 118 are provided at intervals, and only one microphone 118 of the plurality of microphones 118 among the plurality of microphones 118 is selected as an input value in the main PCB 500 (see FIGS. 1 and 3) So that the omnidirectional property of the microphone can be enhanced. On the other hand, when the Bluetooth speaker is used in the communication mode, the main PCB 500 (see FIGS. 1 and 3) can turn off the power of the tweeter speaker 200, thereby improving the sound quality of the call.

FIG. 5 is a perspective view of a tweeter speaker of a 2WAY Bluetooth speaker according to an embodiment of the present invention, FIG. 6 is a perspective view of a tweeter speaker of a 2WAY Bluetooth speaker according to an embodiment of the present invention, FIG. 7 is a cross-sectional view of a tweeter speaker of a 2-way Bluetooth speaker according to an embodiment of the present invention.

The 2WAY Bluetooth speaker according to an embodiment of the present invention includes both the tweeter speaker 200 and the woofer speaker 300 (see FIGS. 1 and 3) A structure should be provided to avoid interference. To this end, the 2WAY Bluetooth speaker according to an embodiment of the present invention includes a tweeter speaker 200 as an enclosure type speaker. The tweeter speaker 200 includes a frame 210, a yoke 220, a permanent magnet 230 attached on the yoke 220, a top plate 240 attached to the permanent magnet 230, a permanent magnet 230, A diaphragm 260 to which a voice coil 250 and a voice coil 250 with a lower end positioned in the air gap between the yokes 220 are attached and which generates sound by being vibrated together by the vibration of the voice coil 250, And a protector 270 that is seated on the frame 260 and coupled with the frame 210 to protect the components inside the frame 210. At this time, since the ventilation holes are not formed in the frame 210 and the yoke 220 of the tweeter speaker 200, the sound is prevented from leaking through the ventilation holes, and only the center portion of the protector 270 is punctured to form sound- do. With this structure, the tweeter speaker 200 emits sound only to the upper side, that is, the side where the protector 270 is located.

1 and 3, the structure for preventing the negative leakage of the woofer speaker 300 is realized through the woofer speaker enclosure cases 410 and 420 that surround the woofer speaker 300. In addition, The woofer speaker enclosure cases 410 and 420 include an upper enclosure case 410 and a lower enclosure case 420. The upper enclosure case 410 interrupts the flow of air and the woofer speaker enclosure case 410 It is possible to prevent the reproduced sound from leaking upward.

FIG. 8 is a perspective view of a 2-way Bluetooth speaker according to an embodiment of the present invention, in which an upper case and a tweeter speaker are removed. The upper case and the tweeter speaker are removed so that the main PCB 500 and the battery 600 included in the 2WAY Bluetooth speaker according to the embodiment of the present invention can be more clearly seen.

The main PCB 500 is mounted on the upper enclosure case 410 and the battery 600 is mounted on the main PCB 500. The main PCB 500 may further include an NFC antenna module 700 in addition to the Bluetooth module and may include a Bluetooth module (not shown), a tweeter speaker 200 (see FIGS. 1 and 3), a woofer speaker 300 1 and 3) and is controlled by the main PCB 500 in the same manner as the microphone (see FIG. 4).

9 is a view showing a main PCB of a 2WAY Bluetooth speaker, a tweeter speaker, and a woofer speaker connected to each other by an FPCB according to an embodiment of the present invention. The FPCBs 710 and 720 connect the main PCB 500 to the tweeter speaker 200 and the woofer speaker 300 so that the tweeter speaker 200 and the woofer speaker 300 can be controlled by the main PCB 500 And control signals are transmitted from the main PCB 500 to the tweeter speaker 200 and the woofer speaker 300 through the FPCBs 710 and 720, respectively.

10 is a view illustrating an input terminal formed in a lower case of a 2WAY Bluetooth speaker according to an embodiment of the present invention. A plurality of input terminals 124 may be formed in the lower case 120. For example, a USB terminal 124a capable of inputting or charging a battery, a memory card slot 124b capable of inserting a memory card, Terminal 124c is formed. In addition, any terminal may be formed as long as it is an electric signal, a power source, and an information input terminal.

FIG. 11 is a schematic view illustrating a multi-channel speaker system using a plurality of 2-way Bluetooth speakers according to an embodiment of the present invention. Two or more 2WAY Bluetooth speakers 2100 and 2200 according to an embodiment of the present invention are connected to one main terminal 1000 through a separate channel and the main terminal 1000 is connected to each 2WAY Bluetooth By transmitting a signal to the speakers 2100 and 2200, a multi-channel speaker can be realized. As the main terminal 1000, various terminals such as a TV, a smart phone, a PC, a tablet PC, and a laptop having a Bluetooth module can be used.

Claims (16)

case;
A PCB including a control unit having a Bluetooth module mounted in a case;
A woofer speaker for low frequency reproduction; And
A 2-way Bluetooth speaker with a tweeter speaker for high-frequency playback. The method according to claim 1,
The woofer speaker is located at the bottom of the case and emits sound downward, and the tweeter speaker is located at the top of the case and emits sound upward. 3. The method of claim 2,
The case has a 2-way Bluetooth speaker, which is formed with an acoustic lens facing the tweeter speaker at a predetermined interval. The method according to claim 1,
And a microphone formed on an upper surface of the case,
The PCB includes a communication module, 2-way Bluetooth speaker which is characterized by providing the call function. 5. The method of claim 4,
A plurality of microphones are formed at equal intervals,
And the control unit uses only the signal of the microphone to which the largest signal is inputted as the input value. 5. The method of claim 4,
And the control unit controls to not output sound to the tweeter speaker when the call function is activated. The method according to claim 1,
The 2-way Bluetooth speaker is characterized in that the tweeter speaker is an enclosure type speaker in which no vent hole is formed. The method according to claim 1,
And a woofer speaker enclosure coupled to the case and blocking between the woofer speaker and the tweeter speaker. The method according to claim 1,
The PCB is located between the woofer speaker and the tweeter speaker,
2WAY Bluetooth speaker with PCB and woofer speaker, PCB and tweeter speaker respectively connected via FPCB. The method according to claim 1,
A battery coupled to the PCB; and a 2WAY Bluetooth speaker. 11. The method of claim 10,
A charging jack for charging the battery; and a 2-way Bluetooth speaker. The method according to claim 1,
And an NFC antenna module connected to the PCB. The method according to claim 1,
And the case is formed with an acoustic lens facing the woofer speaker at a predetermined interval. The method according to claim 1,
And a dummy mass installed at a lower portion of the case for preventing vibrations due to a sound pressure during sound reproduction. 15. The method of claim 14,
The case is formed with an acoustic lens facing the woofer speaker at a predetermined interval,
Wherein the dummy mass is located at the bottom of the acoustic lens. At least one of the Bluetooth speakers of claims 1 to 15; And
And a main terminal having a Bluetooth speaker connected to a separate Bluetooth channel.
KR1020150027170A 2014-06-11 2015-02-26 2 way bluetooth speaker KR20150143276A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140070605 2014-06-11
KR20140070605 2014-06-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101710379B1 (en) * 2016-09-23 2017-02-27 범진시엔엘 주식회사 Bluetooth speaker
WO2017175949A1 (en) * 2016-04-04 2017-10-12 삼성전자 주식회사 Electronic apparatus
KR20200109985A (en) * 2019-03-15 2020-09-23 박성아 Multimedia device of snowball type and operating method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100830556B1 (en) 2007-11-15 2008-05-22 (주)화이트클라우드 Speaker equipped with bluetooth function

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100830556B1 (en) 2007-11-15 2008-05-22 (주)화이트클라우드 Speaker equipped with bluetooth function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017175949A1 (en) * 2016-04-04 2017-10-12 삼성전자 주식회사 Electronic apparatus
KR101710379B1 (en) * 2016-09-23 2017-02-27 범진시엔엘 주식회사 Bluetooth speaker
KR20200109985A (en) * 2019-03-15 2020-09-23 박성아 Multimedia device of snowball type and operating method thereof

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