CN103428614B - Flat radiation vibration loudspeaker - Google Patents
Flat radiation vibration loudspeaker Download PDFInfo
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- CN103428614B CN103428614B CN201310237640.XA CN201310237640A CN103428614B CN 103428614 B CN103428614 B CN 103428614B CN 201310237640 A CN201310237640 A CN 201310237640A CN 103428614 B CN103428614 B CN 103428614B
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- magnetic sheet
- magnetic circuit
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Abstract
The invention discloses a kind of flat radiation vibration loudspeaker, it includes magnetic circuit drive system, support system, plate vibration system, described plate vibration system includes plate diaphragm, shell fragment and coil, interacted with the electromagnetic field of generation in plate vibration system by the permanent-magnetic field produced in magnetic circuit drive system, plate vibration system neutral circle is made to produce the power moved up and down, and coil is connected with plate diaphragm, and then drive plate diaphragm to make piston movement, thus promote the air vibration of surrounding, produce sound.This is using flat board as sounding body, coil is as the plate vibration system of motive force, radiative acoustic wave is propagated in non-directive mode, making sound field cover to be more uniformly distributed, it is relatively low that lowest resonance frequency compares similar speaker, makes people listen to low frequency and feels plentiful, slim body simultaneously, volume is little, lightweight, and space hold is little.
Description
Technical field
The present invention relates to a kind of flat radiation vibration loudspeaker.
Background technology
Along with the raising of people's quality of life, leisure, entertainment requirements are increased so that notebook computer, desktop computer,
Panel computer, mobile phone, ultrathin liquid crystal display television set, a large amount of productions of the media such as desktop ultra-thin speaker, to the demand of speaker increasingly
High.Major part uses taper cone, voice coil loudspeaker voice coil and centring disk composition vibrational system in the market, and this vibrational system advantage is
It is simple to manufacture, with low cost.Shortcoming is easily to produce modal resonance, and distortion is big, and tonequality is bad, and refers in technology such as parameters
In the case of mark reaches standard, the size of product itself also has a lot of restrictions, Gu installing space have to be big, so at medium
Production process in bring the biggest difficulty so that cost increase, affect attractive in appearance.
Summary of the invention
Present invention solves the technical problem that and be for above-mentioned deficiency, it is provided that a kind of flat radiation vibration loudspeaker, it is with flat board
As sounding body, coil is propagated in non-directive mode as the plate vibration system of motive force, radiative acoustic wave, is made sound field cover
Being more uniformly distributed, it is relatively low that lowest resonance frequency compares similar speaker, makes people listen to low frequency and feels plentiful, slim body simultaneously, volume
Little, lightweight, space hold is little.
Technical scheme is as described below: flat radiation vibration loudspeaker, it is characterised in that it include magnetic circuit drive system,
Support system, plate vibration system, described plate vibration system includes plate diaphragm, shell fragment and coil, by magnetic circuit drivetrain
The permanent-magnetic field produced in system interacts with the electromagnetic field of generation in plate vibration system so that plate vibration system neutral circle produces
The raw power moved up and down, and coil is connected with plate diaphragm, and then drive plate diaphragm to make piston movement, thus promote surrounding
Air vibration, produces sound.
Further, described magnetic circuit drive system includes Yoke (magnetic conductor), lower magnetic sheet, pole piece and upper magnetic sheet, bottom Yoke
Being stained with lower magnetic sheet, pole piece distinguishes bonding lower magnetic sheet and upper magnetic sheet up and down.
Further, described support system includes that support and pcb board, described magnetic circuit drive system are glued to support system medium-height trestle
Bottom centre, in plate vibration system, shell fragment is symmetrical is adhesive in support system medium-height trestle (5) bottom centre both sides, on shell fragment
Bonding coil, described coil space is held to be symmetrically distributed in pole piece two ends in magnetic circuit drive system, glued plate vibrating diaphragm above coil,
The plate diaphragm other end is mutually gluing with support system medium-height trestle, the gluing pcb board in support outer, and described pcb board connects by coil
Litzendraht wire connects coil.
Further, can be produced forever in annulus gap with upper magnetic sheet by the lower magnetic sheet that pole piece in magnetic circuit drive system is the most bonding
Magnetic field for a long time, thus the coil being connected with plate vibration system middle plateform vibrating diaphragm is bonded in annulus gap at shell fragment center, works as audio frequency
When current signal is by coil, it is the most bonding with by pole piece in magnetic circuit drive system that plate vibration system neutral circle produces electromagnetic field
The permanent-magnetic field that lower magnetic sheet and upper magnetic sheet produce interacts so that the power that coil generation moves up and down, and coil and flat board
Vibrating diaphragm is connected, and then drives plate diaphragm to make piston movement, thus promotes the air vibration of surrounding, produces sound.
Further, described coil is the long and thin metal line cylindrical object around city.
Compared with existing best technique, it is an advantage of the current invention that:
1. propagate in non-directive mode using flat board as the radiative acoustic wave of sounding body, make sound field cover and be more uniformly distributed.This propagation
Mode can create a fine definition sound field covering larger area, compares tradition cone basin sound equipment and has a high-fidelity, high energy efficiency,
It is not likely to produce the features such as auditory fatigue.
2. to compare similar speaker relatively low for lowest resonance frequency.Audio signal passes through dynamical system, makes vibrational system promote around
Air vibration, and air vibration produces sound wave, frequency of sound wave is relatively low, makes people's ear empathize shock.People is made to listen to low frequency sense
Feel plentiful.
3. slim body, volume is little, lightweight, takes up room little, due to the special tectonic of loudspeaker, is allowed to for various fields.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
In the drawings, 1, Yoke；2, lower magnetic sheet；3, pole piece；4, upper magnetic sheet；5, support；6、；Pcb board；7, flat
Plate vibrating diaphragm；8, shell fragment；9, coil.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely retouched
Stating, certainly, described embodiment is only a part of embodiment of the present invention rather than whole embodiments, based on the present invention
Middle claim, in addition to embodiment but belong in right, also belong to the scope of protection of the invention.
As shown in Figure 1, flat radiation vibration loudspeaker include magnetic circuit drive system+, support system, plate vibration system, its
In, magnetic circuit drive system is by Yoke (magnetic conductor) 1；Lower magnetic sheet 2；Pole piece 3；Upper magnetic sheet 4 forms, and support system includes propping up
Frame and pcb board composition, plate vibration system includes plate diaphragm 7, shell fragment 8 and coil 9.
Described flat radiation vibration loudspeaker basic structure is by being stained with lower magnetic sheet 2 bottom Yoke1；Under pole piece about 3 is bonding
Magnetic sheet 2 and upper magnetic sheet 4 form magnetic circuit drive system；Magnetic circuit drive system is glued to support system medium-height trestle 5 bottom centre, flat
The symmetrical support system medium-height trestle 5 bottom centre both sides that are adhesive in of shell fragment 8 in panel vibration system, the bonding coil in shell fragment 8 upper end 9,
Described coil 9 space symmetr is distributed in pole piece 3 two ends in magnetic circuit drive system, glued plate vibrating diaphragm 7 above coil 9, described flat
Plate vibrating diaphragm edge is elastomeric material, and plate diaphragm 7 other end is mutually gluing with support system medium-height trestle 5, the gluing PCB in support 5 outer
Plate 6, described pcb board 6 connects coil 9 by connecing litzendraht wire in coil.
The principle of sound of the present invention is: the lower magnetic sheet 2 bonding by pole piece about 3 in magnetic circuit drive system and upper magnetic sheet 4 are at ring
Shape air gap produces permanent-magnetic field, thus bonding at shell fragment 8 center with the coil 9 that plate vibration system middle plateform vibrating diaphragm 7 is connected
In annulus gap.Owing to coil 9 is to be coiled into drum object by an elongated metal wire, described elongated metal wire is
Electromagnetism copper cash, electromagnetism aluminum steel, copper-clad aluminum conductor, aluminum copper-clad line, in film copper aluminum steel any one, when tone currents signal passes through
During coil 9, form electromagnetic field according to electromagnetic induction principle.Therefore plate vibration system neutral circle 9 produces electromagnetic field and by magnetic circuit
The permanent-magnetic field that the lower magnetic sheet 2 that in drive system, pole piece about 3 is bonding produces with upper magnetic sheet 4 interacts, according to farad
Law so that coil 9 produces the power moved up and down, and coil 9 is connected with plate diaphragm 7, and then drive plate diaphragm 7 to make
Piston movement.Thus promote the air vibration of surrounding, produce sound.
Owing to tone currents signal is the frequency of regular sound wave with voice, music and audio, the e-mail of amplitude of variation
Breath, so when tone currents signal is by coil 9, electromagnetic field also has dividing of power, therefore, according to electromagnetic field with permanent
The power of motive force that magnetic field interaction produces and frequency and the difference of amplitude size so that plate diaphragm 7 promotes air to send
Different frequencies and the sound of power.
Compared with existing best technique, it is an advantage of the current invention that:
1. propagate in non-directive mode using flat board as the radiative acoustic wave of sounding body, make sound field cover and be more uniformly distributed.This propagation
Mode can create a fine definition sound field covering larger area, compares tradition cone basin sound equipment and has a high-fidelity, high energy efficiency,
It is not likely to produce the features such as auditory fatigue.
2. to compare similar speaker relatively low for lowest resonance frequency.Audio signal passes through dynamical system, makes vibrational system promote around
Air vibration, and air vibration produces sound wave, frequency of sound wave is relatively low, makes people's ear empathize shock.People is made to listen to low frequency sense
Feel plentiful.
3. slim body, volume is little, lightweight, does not takes up space.Due to the special tectonic of loudspeaker, it is allowed to for various fields.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, and institute
There are these modifications and variations all should belong to the protection domain of claims of the present invention.
Above in conjunction with accompanying drawing, patent of the present invention is carried out exemplary description, it is clear that the realization of patent of the present invention is not by above-mentioned side
The restriction of formula, if the various improvement that the method design that have employed patent of the present invention is carried out with technical scheme, or the most improved by this
Design and the technical scheme of patent of invention directly apply to other occasion, all in protection scope of the present invention.
Claims (3)
1. a flat radiation vibration loudspeaker, it is characterised in that it include magnetic circuit drive system, support system,
Plate vibration system, described plate vibration system includes plate diaphragm (7), shell fragment (8) and coil (9), logical
Cross the permanent-magnetic field produced in magnetic circuit drive system to interact with the electromagnetic field of generation in plate vibration system so that
Plate vibration system neutral circle (9) produces the power moved up and down, and then drives the flat board being connected with coil (9) to shake
Film (7) makees piston movement, thus promotes the air vibration of surrounding, produces sound；
Described magnetic circuit drive system includes Yoke (1), lower magnetic sheet (2), pole piece (3) and upper magnetic sheet (4), Yoke
(1) bottom is stained with lower magnetic sheet (2), and pole piece (3) distinguishes bonding lower magnetic sheet (2) and upper magnetic sheet (4) up and down；
Described support system includes support (5) and pcb board (6), and described magnetic circuit drive system is glued to support system
System medium-height trestle (5) bottom centre, in plate vibration system, symmetrical being adhesive in support system of shell fragment (8) is propped up
Frame (5) bottom centre both sides, the bonding coil in shell fragment (8) upper end (9), described coil (9) space symmetr divides
Cloth is pole piece (3) two ends in magnetic circuit drive system, coil (9) top glued plate vibrating diaphragm (7), plate diaphragm
(7) other end is mutually gluing with support system medium-height trestle (5), the gluing pcb board in support (5) outer (6), institute
State pcb board (6) and connect coil (9) by connecing litzendraht wire in coil.
Flat radiation vibration loudspeaker the most according to claim 1, is further characterized in that, is driven by magnetic circuit
The lower magnetic sheet (2) that in system, pole piece (3) is the most bonding and upper magnetic sheet (4) can produce forever in annulus gap
Magnetic field, thus the coil (9) being connected with plate vibration system middle plateform vibrating diaphragm (7) is viscous at shell fragment (8) center
Being connected in annulus gap, when tone currents signal is by coil (9), plate vibration system neutral circle (9) produces
Raw electromagnetic field produces with upper magnetic sheet (4) with by the lower magnetic sheet (2) that pole piece (3) in magnetic circuit drive system is the most bonding
Raw permanent-magnetic field interacts so that coil (9) produces the power moved up and down, and then drives and coil
(9) plate diaphragm (7) being connected makees piston movement, thus promotes the air vibration of surrounding, produces sound.
Flat radiation vibration loudspeaker the most according to claim 1 and 2, is further characterized in that, described coil
(9) it is the cylindrical object that is coiled into of long and thin metal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237640.XA CN103428614B (en) | 2013-06-17 | 2013-06-17 | Flat radiation vibration loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237640.XA CN103428614B (en) | 2013-06-17 | 2013-06-17 | Flat radiation vibration loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103428614A CN103428614A (en) | 2013-12-04 |
| CN103428614B true CN103428614B (en) | 2016-08-10 |
Family
ID=49652659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310237640.XA Active CN103428614B (en) | 2013-06-17 | 2013-06-17 | Flat radiation vibration loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103428614B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988735A (en) * | 2005-12-20 | 2007-06-27 | 朱斯忠 | Disc shape speaker |
| CN101175339A (en) * | 2006-09-27 | 2008-05-07 | 张百良 | Driving system of loudspeaker |
| CN101370324A (en) * | 2007-08-17 | 2009-02-18 | 陈友余 | Large dynamic even force driving bar-shaped plate loudspeaker |
| CN203313396U (en) * | 2013-06-17 | 2013-11-27 | 深圳市鲁粤盛科技有限公司 | Flat plate radiation vibration loudspeaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050099255A1 (en) * | 2000-08-18 | 2005-05-12 | Fan Zhang | Transducer with dual coil and dual magnetic gap |
-
2013
- 2013-06-17 CN CN201310237640.XA patent/CN103428614B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988735A (en) * | 2005-12-20 | 2007-06-27 | 朱斯忠 | Disc shape speaker |
| CN101175339A (en) * | 2006-09-27 | 2008-05-07 | 张百良 | Driving system of loudspeaker |
| CN101370324A (en) * | 2007-08-17 | 2009-02-18 | 陈友余 | Large dynamic even force driving bar-shaped plate loudspeaker |
| CN203313396U (en) * | 2013-06-17 | 2013-11-27 | 深圳市鲁粤盛科技有限公司 | Flat plate radiation vibration loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103428614A (en) | 2013-12-04 |
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