CN108134975A - A kind of speaker unit for improving audio output directive property - Google Patents
A kind of speaker unit for improving audio output directive property Download PDFInfo
- Publication number
- CN108134975A CN108134975A CN201611091211.6A CN201611091211A CN108134975A CN 108134975 A CN108134975 A CN 108134975A CN 201611091211 A CN201611091211 A CN 201611091211A CN 108134975 A CN108134975 A CN 108134975A
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- loudspeaker
- speaker unit
- directive property
- capacitance
- audio output
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- 230000003245 working effect Effects 0.000 claims abstract description 4
- 230000005236 sound signal Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010415 tropism 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of speaker units for improving audio output directive property, relate to communication equipment field, and the speaker unit includes loudspeaker assembly, capacitance and audio input end；The loudspeaker assembly includes the loudspeaker module of two tandem workings, the first loudspeaker module and the second loudspeaker module；The loudspeaker assembly is electrically connected with the audio input end；The capacitance is in parallel with first loudspeaker module.The speaker unit of the present invention for improving audio output directive property, pass through the both ends shunt capacitance of the first loudspeaker module in loudspeaker assembly, the two row high frequency sound waves that script generates can be become a row high frequency sound wave, avoid the problem of identical high frequency sound wave of two row interferes with each other the waveform big wave crest of appearance being superimposed with two row high frequency sound waves and big trough, its sound press off-axis response bandwidth is made so will not sharp to narrow, improves the audio output directive property of the speaker unit.
Description
Technical field
The present invention relates to communication equipment fields, are filled more particularly to a kind of loud speaker for improving audio output directive property
It puts.
Background technology
At present, existing speaker inner most uses two or more loud speakers of horizontal setting, same for exporting
Audio signal all the way will appear multiple high-frequency sound source points when resetting high frequency, and cause apparent phase interference, make the high frequency of speaker
There is apparent peak valley in sound pressure curve, and the horizontal off-axis pressure response of high frequency of loud speaker is deteriorated, i.e. the horizontal public address of loud speaker
Range can narrow.
Existing speaker, with the individual high pitch loudspeaker exports audio signal of unification, also may be used by passive frequency dividing circuit
Phase interference effects are caused when generating high frequency sound wave to avoid multiple loud speakers；If but increase independent high pitch loudspeaker newly, and with dividing
Frequency circuit coordinates, and can increase cost, and occupy more speaker inner spaces.
Invention content
It is an object of the invention to be directed to technical problem of the existing technology, provide a kind of low price, it is simple, effectively change
The speaker unit of kind audio output directive property mainly solves the speaker unit and is made when output is with audio signal all the way
Into phase interference, the audio output off-axis frequency response of the speaker unit is made to be deteriorated, i.e., the problem of directive property is sharp.
In order to solve posed problems above, the technical solution adopted by the present invention is：
A kind of speaker unit for improving audio output directive property provided by the present invention, the speaker unit include raising
Sound device assembly, capacitance and audio input end；The loudspeaker assembly includes the loudspeaker module of two tandem workings, and first
Loudspeaker module and the second loudspeaker module；The loudspeaker assembly is electrically connected with the audio input end；The capacitance with
First loudspeaker module is in parallel.
As a further improvement on the present invention, first loudspeaker module includes at least a loud speaker, when described the
When loud speaker in one loudspeaker module is no less than two, the loud speaker in first loudspeaker module is serial or parallel connection work
The identical loudspeaker of work.
As a further improvement on the present invention, output interface of the audio input end for power amplifier circuit board, the audio
Input terminal is used for will be by externally input audio signal transmission to the loudspeaker assembly.
As a further improvement on the present invention, the mode of audio signal described in external input includes network inputs and hardware is defeated
Enter, the network includes wireless WIFI, bluetooth, and the hardware includes RAM card, USB flash disk.
As a further improvement on the present invention, the capacitance is nonpolarity frequency dividing capacitance.
Compared with prior art, the beneficial effects of the present invention are：
Improve the speaker unit of audio output directive property described in the embodiment of the present invention, by the loudspeaker assembly
The two row high frequency sound waves that script generates can be become a row high frequency sound wave by the both ends of the first loudspeaker module capacitance in parallel,
It avoids the identical high frequency sound wave of two row and interferes with each other the waveform being superimposed with two row high frequency sound waves and big wave crest and big trough occur
Problem makes its sound press off-axis response bandwidth so will not sharp narrow, and the audio output for improving the speaker unit refers to
Tropism.
Description of the drawings
Fig. 1 is the reference circuit figure of speaker unit one embodiment of the present invention for improving audio output directive property；
Fig. 2 is the reference circuit of the present invention for improving another embodiment of the speaker unit of audio output directive property
Figure.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
With reference to shown in Fig. 1, the ginseng for speaker unit one embodiment of the present invention for improving audio output directive property
Circuit diagram is examined, including loudspeaker assembly 1, capacitance 2 and audio input end 3；As shown in dotted line frame in Fig. 1, the loud speaker group
Part 1 includes the loudspeaker module of two tandem workings, the first loudspeaker module 11 and the second loudspeaker module 12；It is described to raise one's voice
The both ends of device assembly 1 are electrically connected with the audio input end 3, and the capacitance 2 is in parallel with first loudspeaker module 11；Figure
Dotted line frame shown in 1 is not within the scope of the present invention.
In an embodiment of the present invention, first loudspeaker module 11 includes at least a loud speaker, when described first
When number of loudspeakers in loudspeaker module 11 is no less than two, loud speaker in first loudspeaker module is for series connection or simultaneously
Join the identical loudspeaker of work；Second loudspeaker module 12 includes at least a loud speaker, when the second loud speaker mould
When number of loudspeakers in block 12 is no less than two, the loud speaker in second loudspeaker module 12 works for serial or parallel connection
Identical loudspeaker；The audio input end 3 is the output interface of power amplifier circuit board (not shown), and the audio input end 3 is used
In will be by externally input audio signal transmission to the loudspeaker assembly 1；First loudspeaker module 11 is receiving simultaneously
After exporting the audio signal, first row high frequency sound wave is generated；Second loudspeaker module 12 is receiving and is exporting the sound
After frequency signal, secondary series high frequency sound wave is generated；First row high frequency sound wave that first loudspeaker module 11 generates and described the
The phase of secondary series high frequency sound wave and amplitude all same that two loudspeaker modules 12 generate.
Optionally, the input mode of the audio signal includes to input by network inputs or with hardware, and the network is defeated
Entering can be inputted by the inputs such as wireless WIFI, bluetooth, the hardware input by the audio file of RAM card, USB flash disk etc..
Capacitance 2 described in the embodiment of the present invention is in parallel with first loudspeaker module 11, specially：For example, described first
The both ends of loudspeaker module 11 are respectively side a and b, and the A ends and one end of the capacitance 2 are electrically connected, the B ends and institute
The other end for stating capacitance 2 is electrically connected.
In an embodiment of the present invention, the capacitance 2 divides capacitance for nonpolarity (No Polarity), described nonpolarity
Frequency dividing capacitance can lead to high frequency resistance low frequency；The audio input end 3 will be exported from anode to the A by externally input audio signal
End, the audio signal is divided into two-way at the A ends, and respectively enters the capacitance 2 and first loudspeaker module 11.
Specifically, the audio input end 3 will be by externally input audio signal after anode output, the audio signal
It is divided into two-way at the A ends, and respectively enters the capacitance 2 and first loudspeaker module 11；The first loud speaker mould
The high-frequency current of block 11 is shunted by the capacitance 2 connected in parallel, makes the high-frequency current into first loudspeaker module 11
It reduces, first loudspeaker module 11 will not generate high frequency sound wave when exporting the audio signal.
Specifically, the audio input end 3 will be by externally input audio signal after anode output, due to the capacitance
The both ends of first loudspeaker module 11 are connected in parallel on, the series circuit capacitive reactance of the loudspeaker assembly 1 will become smaller, that is, enter
The high-frequency current increase at the B ends, the high-frequency current at the B ends are flowed into second loudspeaker module 12, make to enter described
The high-frequency current of second loudspeaker module 12 increases, and second loudspeaker module 12 generates a row when exporting the audio signal
High frequency sound wave.
Improve the speaker unit of audio output directive property described in the embodiment of the present invention, by the first loud speaker mould
The both ends of block 11 capacitance 2 in parallel, realizes that 11 and second loudspeaker module 12 of the first loudspeaker module is exporting respectively
During audio signal, several row high frequency sound waves that script generates are become into a row high frequency sound wave, avoid the identical high frequency sound wave of two row
It interferes with each other the waveform being formed by stacking with two row high frequency sound waves and the problem of big wave crest and big trough occurs, improve the loud speaker
The sound press frequency response curve of device especially makes the high frequency attenuation that off-axis responds become no longer so drastically, speaker unit
Directive property broadens.
On the basis of above-described embodiment, with reference to shown in Fig. 2, improve raising one's voice for audio output directive property to be of the present invention
The reference circuit figure of another embodiment of device device, including loudspeaker assembly 1 ', capacitance 2 ' and audio input end 3 '；Such as Fig. 2
(but the dotted line frame is not within the scope of the present invention) shown in middle dotted line frame, the loudspeaker assembly 1 ' include first
Loud speaker 11 ' and the second loud speaker 12 ', first loud speaker 11 ' and second loud speaker 12 ' are connected in series with, and described
One loud speaker 11 ' is in parallel with the capacitance 2 ', and the both ends of the loudspeaker assembly 1 ' electrically connect with the audio input end 3 '
It connects.
Specifically, the audio signal that the audio input end 3 ' exports enters first loud speaker 11 ', described first raises
The high-frequency current of sound device 11 ' is shunted by the capacitance 2 ' connected in parallel, makes the high-frequency current into first loud speaker 11 '
It reduces, first loud speaker 11 ' does not generate high frequency sound wave when exporting the audio signal.
Specifically, due to the first loud speaker 11 ' capacitance 2 ' in parallel, the series circuit of the loudspeaker assembly 1 '
Capacitive reactance becomes smaller, and increases the high-frequency current into second loud speaker 12 ', second loud speaker 12 ' exports the audio
A row high frequency sound wave is generated during signal.
In the embodiment of the present invention, by the in parallel capacitance 2 ' in the both ends of first loud speaker 11 ', realizing described the
The two row high frequency sound waves that script generates are become one by one loud speaker 11 ' and the second loud speaker 12 ' in exports audio signal respectively
Row high frequency sound wave avoids the identical high frequency sound wave of two row and interferes with each other the waveform appearance being formed by stacking with two row high frequency sound waves greatly
The problem of wave crest and big trough, improves the sound press frequency response curve of the speaker unit, the height for especially responding off-axis
Frequency attenuation becomes no longer so drastically, and the directive property of speaker unit broadens.
The embodiment of the present invention can be applied to sound box system, for example, being placed in a series arrangement in the babinet of sound box system
The speaker unit of two or more loud speakers of connection, through the embodiment of the present invention the improvement audio output directive property,
The both ends of the loud speaker of the both ends of one of loud speaker or multiple series connection are connected in parallel with a capacitor, and can improve the sound box system
Audio output directive property；But the embodiment of the present invention is not limited to that, in other implementations, applies also for vehicle
Loading system etc..
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (5)
1. a kind of speaker unit for improving audio output directive property, it is characterised in that：The speaker unit includes loud speaker
Component, capacitance and audio input end；The loudspeaker assembly includes the loudspeaker module of two tandem workings, and first raises one's voice
Device module and the second loudspeaker module；The loudspeaker assembly is electrically connected with the audio input end；The capacitance with it is described
First loudspeaker module is in parallel.
2. the speaker unit according to claim 1 for improving audio output directive property, it is characterised in that：Described first raises
Sound device module includes at least a loud speaker, when the loud speaker in first loudspeaker module is no less than two, described the
Loud speaker in one loudspeaker module is the identical loudspeaker of serial or parallel connection work.
3. the speaker unit according to claim 1 for improving audio output directive property, it is characterised in that：The audio is defeated
Enter output interface of the end for power amplifier circuit board, the audio input end is used for will be by externally input audio signal transmission described in
In loudspeaker assembly.
4. the speaker unit according to claim 3 for improving audio output directive property, it is characterised in that：External input institute
The mode for stating audio signal includes network inputs and hardware input, and the network includes wireless WIFI, bluetooth, and the hardware includes
RAM card, USB flash disk.
5. the speaker unit according to claim 1 for improving audio output directive property, it is characterised in that：The capacitance is
Nonpolarity frequency dividing capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091211.6A CN108134975A (en) | 2016-12-01 | 2016-12-01 | A kind of speaker unit for improving audio output directive property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091211.6A CN108134975A (en) | 2016-12-01 | 2016-12-01 | A kind of speaker unit for improving audio output directive property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108134975A true CN108134975A (en) | 2018-06-08 |
Family
ID=62387716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611091211.6A Pending CN108134975A (en) | 2016-12-01 | 2016-12-01 | A kind of speaker unit for improving audio output directive property |
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| Country | Link |
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| CN (1) | CN108134975A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2431554A1 (en) * | 1974-07-01 | 1976-01-15 | Rudolf Goebel | Loudspeaker combination cct - has treble, wideband and bass loudspeakers and LC frequency filters |
| CN1295735A (en) * | 1998-07-23 | 2001-05-16 | 戴奥柔股份有限公司 | Capacitor-less crossover network for electro-acoustic loudspeakers |
| CN1474630A (en) * | 2002-08-08 | 2004-02-11 | 上海市虹口区兴荣五金电料商店 | Network for distrbuting signal to multiple speakers |
| US20050226441A1 (en) * | 2003-01-30 | 2005-10-13 | Matsushita Electric Industrial Co., Ltd. | Speaker system |
| CN102075833A (en) * | 2011-01-13 | 2011-05-25 | 深圳市泰金田科技有限公司 | Method, circuit and device for realizing 2.1 sound track power amplification by using double-channel circuit |
| CN205647982U (en) * | 2016-05-17 | 2016-10-12 | 深圳市悦声音响科技有限公司 | Many drivers panel speaker |
-
2016
- 2016-12-01 CN CN201611091211.6A patent/CN108134975A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2431554A1 (en) * | 1974-07-01 | 1976-01-15 | Rudolf Goebel | Loudspeaker combination cct - has treble, wideband and bass loudspeakers and LC frequency filters |
| CN1295735A (en) * | 1998-07-23 | 2001-05-16 | 戴奥柔股份有限公司 | Capacitor-less crossover network for electro-acoustic loudspeakers |
| CN1474630A (en) * | 2002-08-08 | 2004-02-11 | 上海市虹口区兴荣五金电料商店 | Network for distrbuting signal to multiple speakers |
| US20050226441A1 (en) * | 2003-01-30 | 2005-10-13 | Matsushita Electric Industrial Co., Ltd. | Speaker system |
| CN102075833A (en) * | 2011-01-13 | 2011-05-25 | 深圳市泰金田科技有限公司 | Method, circuit and device for realizing 2.1 sound track power amplification by using double-channel circuit |
| CN205647982U (en) * | 2016-05-17 | 2016-10-12 | 深圳市悦声音响科技有限公司 | Many drivers panel speaker |
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Application publication date: 20180608 |
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| RJ01 | Rejection of invention patent application after publication |