CN108668208A - A kind of loud speaker - Google Patents
A kind of loud speaker Download PDFInfo
- Publication number
- CN108668208A CN108668208A CN201810468273.7A CN201810468273A CN108668208A CN 108668208 A CN108668208 A CN 108668208A CN 201810468273 A CN201810468273 A CN 201810468273A CN 108668208 A CN108668208 A CN 108668208A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- magnet
- bottom wall
- wall part
- conductive
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
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
- H04R9/02—Details
- H04R9/025—Magnetic circuit
- H04R9/027—Air gaps using a magnetic fluid
-
- 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
Abstract
The present invention discloses a kind of loud speaker, it include the shell with accommodating chamber, and it is contained in the magnetic circuit system in the shell, the magnetic circuit system is formed with magnetic gap, the magnetic circuit system includes at least one conductive layer formed by plating or chemical plating, and each conductive layer corresponds to the circumferential of the magnetic gap and forms a closed loop.A kind of loud speaker provided by the invention, plate conductive layer in the surface of magnet, magnetic conductive board and one or more of conductive magnetic yoke in magnetic circuit system, loud speaker is at work, the conductive layer generates the induction reactance opposite with vibrational system voice coil, so that the high-frequency electrical impedance of voice coil slows down with the trend that frequency rises, high-frequency sensitivity increases, and improves the acoustical behavior of loud speaker, and do not increase the volume of loud speaker, adapt to the development of Microspeaker.
Description
Technical field
The present invention relates to electro-acoustic product technical fields.More particularly, to a kind of loud speaker.
Background technology
With the development of technology, in order to improve user experience, according to the needs of user, mobile phone etc. develops towards " ultra-thin ",
Cause the space of loud speaker smaller and smaller.In order to keep the audios such as mobile phone more preferable, the high frequency performance that loud speaker is continuously improved is needed, but
With the raising of loudspeaker frequency, the electrical impedance of voice coil is continuously improved, and leads to loudspeaker high frequency performance rapid decrease.
To solve the above-mentioned problems, it is desirable to provide a kind of loud speaker.
Invention content
It is an object of the present invention to provide a kind of loud speakers, to solve in the prior art when loudspeaker frequency constantly carries
The problem of Gao Shi, the electrical impedance of voice coil is continuously improved, leads to loudspeaker high frequency performance rapid decrease.
In order to achieve the above objectives, the present invention uses following technical proposals：
A kind of loud speaker includes the shell with accommodating chamber, and the magnetic circuit system being contained in the shell, the magnetic
Road system is formed with magnetic gap, and the magnetic circuit system includes at least one conductive layer formed by plating or chemical plating, often
A conductive layer corresponds to the circumferential of the magnetic gap and forms a closed loop.
Preferably, the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part；And
In conjunction with the centring magnet for being fixed on the bottom wall part middle position；
The magnetic gap is located on the outside of the centring magnet；
Wherein, at least one of the top surface, side and bottom surface of the centring magnet are formed at least one conductive layer.
Preferably, the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part；
In conjunction with the centring magnet for being fixed on the bottom wall part middle position；And
In conjunction with the center magnetic conductive board for being fixed on surface of the centring magnet far from the bottom wall part；
The magnetic gap is located on the outside of the centring magnet；
Wherein, surface of the center magnetic conductive board far from the centring magnet, close to the surface of the centring magnet and
At least one of the side of center magnetic conductive board is formed at least one conductive layer.
Preferably, the magnetic circuit system further comprises：
In conjunction with the center magnetic conductive board for being fixed on surface of the centring magnet far from the bottom wall part；
Wherein, surface of the center magnetic conductive board far from the centring magnet, close to the surface of the centring magnet and
At least one of the side of center magnetic conductive board is formed at least one conductive layer.
Preferably, the bottom wall part include two opposite first while and it is two opposite second while, the magnetic circuit system is into one
Step includes：
Positioned at first while and/or avris when second, and in conjunction with the side magnet for being fixed on the bottom wall part edge；And
In conjunction with being fixed on the while magnetic conductive board on surface of the magnet far from the bottom wall part, what which was integrated
Cyclic structure；
The magnetic gap is formed between the centring magnet and the side magnet；
Wherein, it is described while magnetic conductive board far from it is described while magnet surface, close to the surface in magnet and while magnetic conduction
At least one of side of plate is formed at least one conductive layer.
Preferably, the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part, the bottom wall part include two opposite first sides and two opposite
Two sides；
Positioned at first while and/or avris when second, and in conjunction with the side magnet for being fixed on the bottom wall part edge；And
In conjunction with being fixed on the while magnetic conductive board on surface of the magnet far from the bottom wall part, what which was integrated
Cyclic structure；
The magnetic gap is located on the inside of the side magnet；
Wherein, it is described while magnetic conductive board far from it is described while magnet surface, close to the surface in magnet and while magnetic conduction
At least one of sidewall surfaces of plate are formed at least one conductive layer.
Preferably, the magnetic circuit system further comprises：
In conjunction with the centring magnet for being fixed on the bottom wall part middle position；And
In conjunction with the center magnetic conductive board for being fixed on surface of the centring magnet far from the bottom wall part；
Alternatively, the magnetic circuit system further comprises：
In conjunction with the center conducting magnetic column for being fixed on the bottom wall part middle position；
The side magnet forms the magnetic gap with the center magnetic conduction intercolumniation.
Preferably, the bottom wall part include two opposite first while and it is two opposite second while, the conductive magnetic yoke is further
Include positioned at first while and avris when second, and in conjunction with the side of sidewall portion for being fixed on the bottom wall part edge；
The magnetic gap is formed between the side of sidewall portion and the centring magnet.
Preferably, the bottom wall part include two opposite first while and it is two opposite second while, the conductive magnetic yoke is further
Include the avris positioned at the first side, and in conjunction with the side of sidewall portion for being fixed on the bottom wall part edge；And
Avris positioned at the second side, and in conjunction with the side magnet for being fixed on the bottom wall part edge；
It is formed between the magnetic between the side of sidewall portion and the centring magnet and between the side magnet and the centring magnet
Gap.
Preferably, the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part；
Wherein, the surface that the conductive magnetic yoke is exposed in the magnetic gap is formed with the conductive layer.
Beneficial effects of the present invention are as follows：
A kind of loud speaker provided by the invention, one or more in magnet, magnetic conductive board and conductive magnetic yoke in magnetic circuit system
Conductive layer is plated on a surface, and each conductive layer corresponds to the circumferential of the magnetic gap and forms a closed loop, formed and magnetic circuit system
The magnetic field that system generates has at least one short-circuited conducting sleeve of certain angle.When loud speaker at work, the conductive layer generate and voice coil
Opposite induction reactance so that the high-frequency electrical impedance of voice coil slows down with the trend that frequency rises, and high-frequency sensitivity increases, and improves and raises
The acoustical behavior of sound device, and do not increase the volume of loud speaker also, enable adaptation to the miniaturization trend of loud speaker.
Description of the drawings
Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows a kind of structural schematic diagram of one specific embodiment of loud speaker of the present invention；
Fig. 2 shows a kind of structural schematic diagrams of another specific embodiment of loud speaker of the present invention；
Fig. 3 shows a kind of structural schematic diagram of also one specific embodiment of loud speaker of the present invention.
Reference numeral：
10, conductive magnetic yoke, 101, conductive magnetic yoke be exposed to the surface of magnetic gap, 11, centring magnet, 12, center magnetic conductive board, 121,
Surface of the center magnetic conductive board far from centring magnet, 122, center magnetic conductive board close to the surface of centring magnet, 123, center magnetic conductive board
Sidewall surfaces, 13, center conducting magnetic column, 21, side magnet, 22, side magnetic conductive board, 221, side magnetic conductive board lean on the surface of near side (ns) magnet,
222, while magnetic conductive board far from while magnet surface, 223, the sidewall surfaces of side magnetic conductive board, 3, magnetic gap, 4, voice coil, 5, conductive layer,
6, vibrating diaphragm.
Specific implementation mode
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
With the development of science and technology, in order to improve user experience, according to the needs of user, the electronic products such as mobile phone towards
The direction of " ultra-thin " is developed, to be increasingly stringenter to the volume requirement of the loud speaker in electronic product.In order to make the electricity such as mobile phone
The audio of sub- product is more preferable, needs the high frequency performance that loud speaker is continuously improved, but with the raising of loudspeaker frequency, the sense of voice coil
Anti- synchronize becomes larger, and leads to loudspeaker high frequency performance rapid decrease.
The present invention to solve the above-mentioned problems, one or more in magnet, magnetic conductive board and conductive magnetic yoke in magnetic circuit system
Conductive layer is plated on a surface, and each conductive layer corresponds to the circumferential of the magnetic gap and forms a closed loop, formed and magnetic circuit system
The magnetic field that system generates has at least one short-circuited conducting sleeve of certain angle.When loud speaker at work, the conductive layer generate and voice coil
Opposite induction reactance so that the high-frequency electrical impedance of voice coil slows down with the trend that frequency rises, and high-frequency sensitivity increases, and improves and raises
The acoustical behavior of sound device, and do not increase the volume of loud speaker also, enable adaptation to the miniaturization trend of loud speaker.
Fig. 1 shows an a kind of specific embodiment of loud speaker according to the present invention, and in the present embodiment, loud speaker includes tool
There is the shell of accommodating chamber, and the magnetic circuit system and vibrational system being contained in the shell, the vibrational system includes combining
Vibrating diaphragm 6 together and voice coil 4, the magnetic circuit system are formed with magnetic gap 3, and the one end of the voice coil 4 far from vibrating diaphragm 6 is placed in institute
It states in magnetic gap 3.At work, external circuit inputs the electric current of variation on voice coil 4 to loud speaker, according to electromagnetic induction principle,
Voice coil 4 is vibrated by the effect of the Ampere force in the magnetic field of magnetic circuit system, and then drives 6 vibration sounding of vibrating diaphragm.
Magnetic circuit system further comprises at least one conductive layer 5 formed by plating or chemical plating, each described to lead
Electric layer corresponds to the circumferential of the magnetic gap 3 and forms a closed loop.It should be noted that in order to clearly show that the master of the present invention
Body is conceived, and coating shows certain thickness in figure, but substantially, those skilled in the art are it should be apparent that conduction
Layer should be very thin one layer.
Optionally, the material of conductive layer 5 is conductive material, specifically includes copper, aluminium, iron and other any conductive materials
Two kinds or more of combination in material or above-mentioned material, such as copper and aluminium alloy, i.e., form the material of short-circuited conducting sleeve in the prior art
Material can be electroplated either form the plating of conductive layer 5 of the present invention by way of chemical plating or chemical plating include but
It is not limited to the existing plating process such as spraying plating, brush plating, ion plating.
Loud speaker provided by the invention, by forming conductive layer corresponding with magnetic gap, the conductive layer in magnetic circuit system
It is end to end, cricoid short-circuited conducting sleeve is formed, at work, which passes through electricity to loud speaker under the action of magnetic circuit system magnetic field
Magnetic induction principle generates the electrical impedance opposite with voice coil so that and the high-frequency electrical impedance of voice coil slows down with the trend that frequency rises,
High-frequency sensitivity increases, and improves the acoustical behavior of loud speaker, and by plating or chemical plating in each component of magnetic circuit system
Surface forms the short-circuited conducting sleeve of stratiform, hardly increases the volume of loud speaker, enables adaptation to the miniaturization of loud speaker.
In addition, it is known in the art that common magnetic circuit system include the single magnetic circuit for only including centring magnet magnetic circuit system,
The magnetic circuit system etc. of three magnetic circuits and five magnetic circuits including centring magnet and side magnet.
As shown in Figure 1, disclosing a kind of specific embodiment for the magnetic circuit system including three magnetic circuits, which includes leading
Yoke 10, the centring magnet 11 in the conductive magnetic yoke 10, the center magnetic conductive board on the centring magnet 11 12, two
Opposite side magnet 21.In the present embodiment, conductive magnetic yoke 10 includes horizontally disposed bottom wall part, and bottom wall part includes two opposite the
One side and two opposite second sides；Avris positioned at the first side, and in conjunction with being fixed on the side of sidewall portion at the bottom wall part edge (in figure
It is not drawn into)；Avris positioned at the second side, and in conjunction with the side magnet 21 for being fixed on the bottom wall part edge, side magnetic conductive board 22 is fixed
In on side magnet 21, magnetic gap 3 is collectively formed between centring magnet 11 and side of sidewall portion, between centring magnet 11 and side magnet 21,
Magnetic gap 3 is populated with the magnetic field that centring magnet 11 and side magnet 21 generate, and when speaker operation, voice coil produces under the action of electric current
It gives birth to power and moves, in the present embodiment, the sidewall surfaces of the centring magnet 11, the top surface or bottom surface of centring magnet 11, in
The surface of heart magnetic conductive board 12 includes sidewall surfaces, center magnetic conductive board surface, the center far from centring magnet of center magnetic conductive board
Magnetic conductive board is close to the surface of centring magnet, the surface of side magnetic conductive board, i.e., while the sidewall surfaces of magnetic conductive board 223, while magnetic conductive board it is separate
While the surface of magnet 222, while magnetic conductive board lean on the surface 221 of near side (ns) magnet, any of the above one or more is formed with the conduction
Layer 5.The magnetic circuit system of three magnetic circuits is corresponding that side magnetic conductive board 22 is arranged due to being provided with side magnet 21, increases conduction
The overlayable area of layer, provides more choices for the covering of conductive layer, and the quantity of conductive layer, the amount of conductive material is made to increase
More, the electrical impedance of conductive layer becomes larger, and the high frequency performance promotion of loud speaker is more apparent.
Conductive layer in magnetic circuit system is more, and the electrical impedance generated is bigger, and effect is better.
It should be noted that in the magnetic circuit system of three conventional magnetic circuits, side magnet is oppositely arranged, corresponding with side magnet
Side magnetic conductive board is equally oppositely arranged, and is caused two side magnetic conductive boards relatively independent, is not attached to each other, but in the present embodiment, conductive
Layer needs for loop checking installation structure, therefore, in the present embodiment while magnetic conductive board should connect from beginning to end to be formed one it is annular while lead
Magnetic sheet.
In another specific embodiment, the magnetic circuit system can be the magnetic circuit system of single magnetic circuit, and magnetic circuit system includes leading
Yoke, the centring magnet in the conductive magnetic yoke and the center magnetic conductive board on the centring magnet, center magnetic conductive board
The magnetic line of force that centring magnet generation can be gathered, improves the acoustical behavior of loud speaker.Conductive magnetic yoke includes horizontally disposed bottom wall part,
The bottom wall part include two opposite first while and it is two opposite second while, and positioned at first while and avris when second, and
In conjunction with the side of sidewall portion for being fixed on the bottom wall part edge, magnetic gap is formed between centring magnet and side of sidewall portion, magnetic gap is populated with
The magnetic field that centring magnet generates, when speaker operation, voice coil generates power under the action of electric current and moves, in the present embodiment,
The sidewall surfaces of centring magnet are led close to the bottom surface of conductive magnetic yoke, far from the top surface of conductive magnetic yoke, the side of center magnetic conductive board, center
Any one or more than two groups of surface, center magnetic conductive board of the magnetic sheet far from centring magnet in the surface of centring magnet
Conjunction is formed with the conductive layer, it should be noted that even on a surface, the number of conductive layer is also not limited to one
It is a.
Specifically, for example conductive layer can be formed only into the sidewall surfaces of centring magnet, in can also being formed only into
On the surface of heart magnetic conductive board, the sidewall surfaces of center magnetic conductive board can be individually formed at, or lead at the center of being individually formed at
Loop configuration on surface of the magnetic sheet far from centring magnet, can also before combined with centring magnet by plating process by conductive layer
Center magnetic conductive board is covered in close to the surface of centring magnet.
Even, conductive layer can be placed only in the partial sidewall of centring magnet, and centring magnet can also be completely covered
Side wall, but it is essential to which the conductive layer formed, which corresponds to the circumferential of the magnetic gap, forms a closed loop, i.e. the conductive layer is first
Tail connects, and forms cricoid short-circuited conducting sleeve, and the present invention repeats no more.
It is furthermore preferred that in the magnetic circuit system of five magnetic circuits, magnetic circuit system includes conductive magnetic yoke, in the conductive magnetic yoke in
Heart magnet, the center magnetic conductive board on the centring magnet, set on four of conductive magnetic yoke edge while magnet and set on while magnetic
Side magnetic conductive board on iron, center magnetic conductive board and side magnetic conductive board can gather the magnetic line of force of magnet generation, improve the acoustics of loud speaker
Performance.Conductive magnetic yoke includes horizontally disposed bottom wall part, the bottom wall part include two opposite first while and it is two opposite second while；
Positioned at first while and avris when second, and in conjunction with the side magnet for being fixed on the bottom wall part edge, centring magnet and side magnet
Between form magnetic gap, magnetic gap is populated with the magnetic field that centring magnet and side magnet generate, and when speaker operation, voice coil is in electric current
Under the action of generate power and move, in the present embodiment, the sidewall surfaces of the centring magnet, the top surface of centring magnet or bottom
Face, the surface of center magnetic conductive board, that is, include center magnetic conductive board surface far from centring magnet of sidewall surfaces, center magnetic conductive board,
Center magnetic conductive board is close to the surface of centring magnet, the surface of side magnetic conductive board, i.e., while the sidewall surfaces of magnetic conductive board, while magnetic conductive board it is separate
While magnet surface, while magnetic conductive board lean on the surface of near side (ns) magnet, any of the above one or more is formed with the conductive layer.Five magnetic
Road is compared to three magnetic circuits, and when the quantity increase of magnet causes, the quantity of magnetic conductive board increases, and conductive layer can the opposite increasing of area coverage
Add, the electrical impedance of generation is bigger, and the high frequency performance of loud speaker is better.
Further, the present embodiment also provides a kind of special magnetic structure, as shown in Figure 2, wherein with above-mentioned three magnetic circuit
Magnetic circuit system, five magnetic circuits magnetic circuit system distinguish, centring magnet is replaced by center conducting magnetic column 13, and magnetic gap 3 can be with
It is collectively formed by center conducting magnetic column 13 and side magnet 21, even, magnetic gap 3 can be by the side of center conducting magnetic column 13 and conductive magnetic yoke
Wall portion is collectively formed, and in this configuration, conductive layer 5 can also be formed on conducting magnetic column 13, can also be that conducting magnetic column 13 is led with center
Magnetic sheet, side magnetic conductive board any one surface conductive layer 5 is collectively formed, the present invention repeats no more.
Further, in any one above-mentioned embodiment, conductive layer can even be formed in conductive magnetic yoke, be please referred to
Fig. 3, although Fig. 3 only shows the magnetic circuit system including center conducting magnetic column, essentially for the list including centring magnet
The magnetic circuit system of the magnetic circuit system of magnetic circuit including single magnetic circuit of center conducting magnetic column including two side magnet being oppositely arranged and
The magnetic circuit system of three magnetic circuits of the side of sidewall portion for two conductive magnetic yokes being oppositely arranged and four including being oppositely arranged two-by-two side magnetic
Five magnetic circuit systems of iron etc., the surface 101 that conductive magnetic yoke 10 is exposed in the magnetic gap 3 can be formed with the conductive layer
5.Conductive layer 5 is arranged on the surface of conductive magnetic yoke, and more increase conductive layer forms area so that in entire magnetic circuit system
The surface of random component can form conductive layer, increase the selectivity of conductive layer formation, can be selected according to the requirement in space
One or more surfaces, each surface form at least one conductive layer.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical solution is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of loud speaker includes the shell with accommodating chamber, and the magnetic circuit system being contained in the shell, feature exist
Be formed with magnetic gap in, the magnetic circuit system, the magnetic circuit system include formed by plating or chemical plating it is at least one
Conductive layer, each conductive layer correspond to the circumferential of the magnetic gap and form a closed loop.
2. loud speaker according to claim 1, which is characterized in that the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part；And
In conjunction with the centring magnet for being fixed on the bottom wall part middle position；
The magnetic gap is located on the outside of the centring magnet；
Wherein, at least one of the top surface, side and bottom surface of the centring magnet are formed at least one conductive layer.
3. loud speaker according to claim 1, which is characterized in that the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part；
In conjunction with the centring magnet for being fixed on the bottom wall part middle position；And
In conjunction with the center magnetic conductive board for being fixed on surface of the centring magnet far from the bottom wall part；
The magnetic gap is located on the outside of the centring magnet；
Wherein, surface of the center magnetic conductive board far from the centring magnet, surface and center close to the centring magnet
At least one of side of magnetic conductive board is formed at least one conductive layer.
4. loud speaker according to claim 2, which is characterized in that the magnetic circuit system further comprises：
In conjunction with the center magnetic conductive board for being fixed on surface of the centring magnet far from the bottom wall part；
Wherein, surface of the center magnetic conductive board far from the centring magnet, surface and center close to the centring magnet
At least one of side of magnetic conductive board is formed at least one conductive layer.
5. according to claim 2-4 any one of them loud speakers, which is characterized in that the bottom wall part includes two opposite first
While and it is two opposite second while, the magnetic circuit system further comprises：
Positioned at first while and/or avris when second, and in conjunction with the side magnet for being fixed on the bottom wall part edge；And
In conjunction with being fixed on the while magnetic conductive board on surface of the magnet far from the bottom wall part, the ring-type which is integrated
Structure；
The magnetic gap is formed between the centring magnet and the side magnet；
Wherein, it is described while magnetic conductive board far from it is described while magnet surface, close to the surface in magnet and while magnetic conductive board
At least one of side is formed at least one conductive layer.
6. loud speaker according to claim 1, which is characterized in that the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part, the bottom wall part include two opposite first while and it is two opposite second while；
Positioned at first while and/or avris when second, and in conjunction with the side magnet for being fixed on the bottom wall part edge；And
In conjunction with being fixed on the while magnetic conductive board on surface of the magnet far from the bottom wall part, the ring-type which is integrated
Structure；
The magnetic gap is located on the inside of the side magnet；
Wherein, it is described while magnetic conductive board far from it is described while magnet surface, close to the surface in magnet and while magnetic conductive board
At least one of sidewall surfaces are formed at least one conductive layer.
7. loud speaker according to claim 6, which is characterized in that the magnetic circuit system further comprises：
In conjunction with the centring magnet for being fixed on the bottom wall part middle position；And
In conjunction with the center magnetic conductive board for being fixed on surface of the centring magnet far from the bottom wall part；
Alternatively, the magnetic circuit system further comprises：
In conjunction with the center conducting magnetic column for being fixed on the bottom wall part middle position；
The side magnet forms the magnetic gap with the center magnetic conduction intercolumniation.
8. loud speaker according to claim 2 or 3, which is characterized in that the bottom wall part include two opposite first sides and
Two opposite second sides, the conductive magnetic yoke further comprise being located at first while and avris when second, and in conjunction with described in being fixed on
The side of sidewall portion at bottom wall part edge；
The magnetic gap is formed between the side of sidewall portion and the centring magnet.
9. loud speaker according to claim 2 or 3, which is characterized in that the bottom wall part include two opposite first sides and
Two opposite second sides, the conductive magnetic yoke further comprise the avris positioned at the first side, and in conjunction with being fixed on the bottom wall part side
The side of sidewall portion of edge；And
Avris positioned at the second side, and in conjunction with the side magnet for being fixed on the bottom wall part edge；
The magnetic gap is formed between the side of sidewall portion and the centring magnet and between the side magnet and the centring magnet.
10. loud speaker according to claim 1, which is characterized in that the magnetic circuit system includes：
Conductive magnetic yoke, including horizontally disposed bottom wall part；
Wherein, the surface that the conductive magnetic yoke is exposed in the magnetic gap is formed with the conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468273.7A CN108668208A (en) | 2018-05-16 | 2018-05-16 | A kind of loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468273.7A CN108668208A (en) | 2018-05-16 | 2018-05-16 | A kind of loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108668208A true CN108668208A (en) | 2018-10-16 |
Family
ID=63779784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810468273.7A Pending CN108668208A (en) | 2018-05-16 | 2018-05-16 | A kind of loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108668208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021000136A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4037648A1 (en) * | 1990-11-27 | 1991-07-11 | Kraemer Martin Dipl Ing | Electrodynamic loudspeaker with no movable connections - conveys signals between transformer and external circuitry under principle of magnetic induction |
| CN2412342Y (en) * | 2000-03-14 | 2000-12-27 | 陈友余 | Static-ring induction loudspeaker |
| CN201594911U (en) * | 2009-10-26 | 2010-09-29 | 北京七九七华音电子有限责任公司 | Loudspeaker magnetic short circuit ring and loudspeaker |
| CN103200489A (en) * | 2013-03-21 | 2013-07-10 | 张百良 | Film short circuit ring of electromagnetism actuator |
| CN204231658U (en) * | 2014-10-30 | 2015-03-25 | 东莞成谦音响科技有限公司 | Short-circuited conducting sleeve and loud speaker |
| CN207304907U (en) * | 2017-08-25 | 2018-05-01 | 歌尔智能科技有限公司 | The magnetic circuit of loudspeaker and loudspeaker |
-
2018
- 2018-05-16 CN CN201810468273.7A patent/CN108668208A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4037648A1 (en) * | 1990-11-27 | 1991-07-11 | Kraemer Martin Dipl Ing | Electrodynamic loudspeaker with no movable connections - conveys signals between transformer and external circuitry under principle of magnetic induction |
| CN2412342Y (en) * | 2000-03-14 | 2000-12-27 | 陈友余 | Static-ring induction loudspeaker |
| CN201594911U (en) * | 2009-10-26 | 2010-09-29 | 北京七九七华音电子有限责任公司 | Loudspeaker magnetic short circuit ring and loudspeaker |
| CN103200489A (en) * | 2013-03-21 | 2013-07-10 | 张百良 | Film short circuit ring of electromagnetism actuator |
| CN204231658U (en) * | 2014-10-30 | 2015-03-25 | 东莞成谦音响科技有限公司 | Short-circuited conducting sleeve and loud speaker |
| CN207304907U (en) * | 2017-08-25 | 2018-05-01 | 歌尔智能科技有限公司 | The magnetic circuit of loudspeaker and loudspeaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021000136A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10659883B2 (en) | Magnetic bowl and sounding device | |
| US9674613B2 (en) | Speaker box | |
| US9820067B2 (en) | Micro speaker with capacitors formed by conductive segmented cover and segmented diaphram | |
| WO2022068081A1 (en) | Sound generator, and electronic product comprising same | |
| WO2022143047A1 (en) | Vibration exciter | |
| CN206226701U (en) | Electroacoustic transducer and electronic equipment | |
| CN102970641A (en) | Voice coil and voice diaphragm integrated structure, speaker and mobile terminal | |
| US20170013382A1 (en) | Micro Speaker | |
| US20200314548A1 (en) | Speaker | |
| CN108882129B (en) | Circuit board, loudspeaker, electronic equipment and polarization compensation method | |
| CN105681979A (en) | Loudspeaker | |
| US9820068B2 (en) | Micro speaker with capacitors formed by conductive cover and segmented diaphragm | |
| CN103067808A (en) | Adjustable frequency response ultrathin telephone receiver | |
| US9866982B2 (en) | Micro speaker with capacitors formed by conductive diaphragm and segmented pole plate | |
| WO2021258653A1 (en) | Loudspeaker and earphone | |
| CN108668208A (en) | A kind of loud speaker | |
| US20120308070A1 (en) | Slim type speaker and magnetic circuit therefor | |
| CN209462600U (en) | Loudspeaker and earphone | |
| JP6667364B2 (en) | Flat speaker and method for improving its frequency characteristics | |
| CN209642957U (en) | A kind of electronic equipment | |
| CN109587609B (en) | Sound producing device | |
| CN111050253A (en) | Exciter and electronic product | |
| CN106454649A (en) | Double-voice-coil loudspeaking assembly and loudspeaking apparatus | |
| CN111050252A (en) | Vibration sounding device for electronic product and electronic product | |
| CN205385601U (en) | Loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |
|
| RJ01 | Rejection of invention patent application after publication |