CN208754543U - Coaxial double-coil loudspeaker - Google Patents
Coaxial double-coil loudspeaker Download PDFInfo
- Publication number
- CN208754543U CN208754543U CN201821382532.6U CN201821382532U CN208754543U CN 208754543 U CN208754543 U CN 208754543U CN 201821382532 U CN201821382532 U CN 201821382532U CN 208754543 U CN208754543 U CN 208754543U
- Authority
- CN
- China
- Prior art keywords
- conductive board
- magnetic conductive
- cyclic annular
- ring
- annular magnetic
- 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.)
- Withdrawn - After Issue
Links
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 67
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002035 prolonged effect 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
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- 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
- H04R9/045—Mounting
-
- 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
- H04R9/063—Loudspeakers using a plurality of acoustic drivers
-
- 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
- H04R9/066—Loudspeakers using the principle of inertia
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
A kind of coaxial double-coil loudspeaker includes yoke, ringshaped magnet, the first cyclic annular magnetic conductive board, the second cyclic annular magnetic conductive board, the first voice coil, the second voice coil and isolation ring.Yoke includes root edge and support column, and support column is extended by root edge, and support column has lug boss and ring flange.Ring flange has annular groove around lug boss between ring flange and lug boss.Support column passes through the first central shaft hole of ringshaped magnet, and ringshaped magnet is sheathed on yoke.Support column passes through the first central perforation of the first cyclic annular magnetic conductive board, and the first cyclic annular magnetic conductive board is set on ringshaped magnet.Isolation ring is set to annular groove.Lug boss passes through two central perforations of the second cyclic annular magnetic conductive board, is set to the second cyclic annular magnetic conductive board on isolation ring.There is the first magnetic gap between second magnetic conductive board and the first magnetic conductive board, there is the second magnetic gap between the second magnetic conductive board and lug boss.There is spacer portion between second cyclic annular magnetic conductive board and ring flange.
Description
Technical field
The utility model relates to electroacoustic fields, more particularly to the electroacoustic field of coaxial double-coil loudspeaker.
Background technique
Coil-moving speaker be through electric signal pass through the magnetic field and permanent magnet generated when voice coil magnetic field interact induction,
And then it pushes diaphragm oscillations air and reaches the function that electroacoustic is converted.In the prior art, coil-moving speaker usually has single
Vibrating diaphragm and single voice coil, it is, all audio sections are to convert through single vibration vibration of membrane to reach electroacoustic.
But single vibrating diaphragm can not combine low frequency and high frequency, generally can not meet the audible frequency of 20Hz-20kHz human ear
Rate range, therefore the design separated using bass and high pitch, reset respective frequency range respectively.Coaxial loudspeaker is pacified in same axle center
Put woofer and high pitch loudspeaker, while again since two loudspeakers are in same axle center, physical positioning close to point sound source,
The sound field positioning for resetting music is ideal, and sound resolution is high.
In addition, loudspeaker is to drive two voice coils respectively using two groups of magnetic circuit systems when high bass coil is generally arranged, because
This volume can be bigger than one group of magnetic circuit of single voice coil, and required magnet is more.
Utility model content
In order to improve the above-mentioned prior art, a kind of coaxial double-coil loudspeaker is provided herein.Coaxial double-coil loudspeaker
Including yoke, ringshaped magnet, the first cyclic annular magnetic conductive board, the second cyclic annular magnetic conductive board, the first voice coil, the second voice coil and isolation ring.
Yoke includes root edge and support column, and support column is extended by one end of root edge, and the one end of support column far from root edge
With lug boss and ring flange.Ring flange and boss in the same face of support column, ring flange around lug boss, ring flange with
There is annular groove between lug boss.Ringshaped magnet includes the first central shaft hole, and support column passes through the first central shaft hole, and makes ring
Shape magnet is sheathed on yoke, and is contacted with root edge.
First cyclic annular magnetic conductive board includes the first central perforation, and support column passes through the first central perforation, makes the first cyclic annular magnetic conduction
Plate is set on ringshaped magnet.Lug boss passes through isolation ring, and isolation ring is made to be set to annular groove.Second cyclic annular magnetic conductive board includes
Second central perforation, the second central perforation and the first central perforation central axis having the same.Lug boss passes through the second center and wears
Hole, and the second cyclic annular magnetic conductive board is set on isolation ring.There is the first magnetic gap between second magnetic conductive board and the first magnetic conductive board, the
There is the second magnetic gap between two magnetic conductive boards and lug boss.
First voice coil is located in the first magnetic gap.Second voice coil is located in the second magnetic gap.
In some embodiments, isolation ring is aluminium ring.The height for completely cutting off ring is higher than ring flange, and the height of lug boss is higher than ring
Flange, and there is spacer portion between the second cyclic annular magnetic conductive board and ring flange.
In some embodiments, the first cyclic annular magnetic conductive board and the second cyclic annular magnetic conductive board are located substantially at identical level height.
In some embodiments, there is clearance space between ringshaped magnet and support column.
In some embodiments, the thickness of the root edge of yoke from the region close to lug boss to periphery decrescence.
In some embodiments, the thickness of the first cyclic annular magnetic conductive board from the region close to the first central perforation to periphery gradually
Subtract.
In some embodiments, the second cyclic annular magnetic conductive board further includes stepped part, and stepped part is adjacent to the second central perforation.
In some embodiments, the first voice coil is bass coil, and the second voice coil is high pitch voice coil.
In some embodiments, the width for completely cutting off ring is greater than the width of ring flange.
In some embodiments, the height of ringshaped magnet is substantially identical to the height of root edge to ring flange top.
Here, coaxial double-coil loudspeaker can be independent for the wave band of high frequency, low frequency by the first voice coil and the second voice coil
Ground driving can reach better sound parsing effect in high frequency and low frequency part, and the structure that can more share yoke designs to reduce
Whole component and reach that light weight, structure be simple, the quick effect of assembling.In addition, can by adjusting the first cyclic annular magnetic conductive board with
The distance between second cyclic annular magnetic conductive board, the second cyclic annular the distance between magnetic conductive board and lug boss, ring flange, the width for completely cutting off ring
And height adjusts density of line of magnetic force, meeting required frequency response.
Detailed description of the invention
Fig. 1 is the sectional perspective exploded view of coaxial double-coil loudspeaker.
Fig. 2 is the partial cutaway view of coaxial double-coil loudspeaker.
Fig. 3 is the enlarged drawing of B area in Fig. 2.
Fig. 4 is the distribution diagram of magnetic line of force of coaxial double-coil loudspeaker.
Specific embodiment
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model
Range.
Fig. 1 is the sectional perspective exploded view of coaxial double-coil loudspeaker, and Fig. 2 is the part section of coaxial double-coil loudspeaker
Figure.Fig. 3 is the enlarged drawing of B area in Fig. 2.As shown in Fig. 1 to Fig. 3, coaxial double-coil loudspeaker 1 includes yoke 10, cyclic annular magnetic
The cyclic annular magnetic conductive board 40 of the cyclic annular magnetic conductive board 30, second of iron 20, first, the first voice coil 61, the second voice coil 63 and isolation ring 70.Yoke
The cyclic annular magnetic conductive board 40 of the cyclic annular magnetic conductive board 30, second of iron 10, ringshaped magnet 20, first, the first voice coil 61, the second voice coil 63 and
Completely cut off the central axis A having the same of ring 70, and is coaxial arrangement.
Yoke 10 is T-type yoke, and it includes root edge 11 and support columns 13.Support column 13 is prolonged upwards by one end of root edge 11
It stretches, and support column 13 has lug boss 131 and ring flange 133 far from one end of root edge 11.In other words, the root edge 11 of yoke 10 can
Think discoid, hemispherical or disk like, there is the support column 13 gone out by wherein cardiac prominence, and ring flange 133 is located at lug boss
131 periphery simultaneously surrounds lug boss 131.There is annular groove 135 between ring flange 133 and lug boss 131.From the point of view of section,
The entirety of yoke 10 is substantially in inverted T shape.
Ringshaped magnet 20 includes the first central shaft hole 21.Support column 13 passes through the first central shaft hole 21, and makes ringshaped magnet
20 are sheathed on yoke 10.Ringshaped magnet 20 is contacted with the root edge 11 of yoke 10.Here, the height of ringshaped magnet 20 is substantially etc.
It is same as the height of root edge 11 to 133 top of ring flange.First cyclic annular magnetic conductive board 30 includes the first central perforation 31, support column 13
Across the first central perforation 31, it is set to the first cyclic annular magnetic conductive board 30 on ringshaped magnet 20.
Isolation ring 70 can be aluminium ring.Lug boss 131 passes through isolation ring 70, and isolation ring 70 is set in annular groove 135.
Second cyclic annular magnetic conductive board 40 includes the second central perforation 41, and the second central perforation 41 and the first central perforation 31 are also having the same
Central axis A.Lug boss 131 passes through the second central perforation 41, and abuts with isolation ring 70, it is, the second cyclic annular magnetic conductive board
40 are set on support column 13 via isolation ring 70.In other words, the second cyclic annular magnetic conductive board 40 is not to be directly placed at support column 13
On.First cyclic annular magnetic conductive board 30 has compared with the second biggish diameter of cyclic annular magnetic conductive board 40, and the second cyclic annular magnetic conductive board 40 is located at first
First central shaft hole 21 of cyclic annular magnetic conductive board 30 encloses in the range set, and the two simultaneously arranges in concentric circles.
In addition, there is the first magnetic gap 431 between the second cyclic annular magnetic conductive board 40 and the first magnetic conductive board 30, the second cyclic annular magnetic conduction
There is the second magnetic gap 433 between plate 40 and lug boss 131.The height for completely cutting off ring 70 is higher than ring flange 133, so that second is cyclic annular
There is spacer portion 137 between magnetic conductive board 40 and ring flange 133.Further, the first cyclic annular magnetic conductive board 30 and the second cyclic annular magnetic conduction
Plate 40 is located substantially at identical level height.
First voice coil 61 is located in the first magnetic gap 431, and the second voice coil 63 is located in the second magnetic gap 433.Though here,
It is so not shown in the figure, but one skilled in the art is appreciated that the first voice coil 61 and the second voice coil 63 will pass through loudspeaker
Bracket is fixed, and can be connected to vibrating diaphragm, thus, when the first voice coil 61 and the second voice coil 63 receive signal, with annular magnet
20 magnetic force reciprocation, and then vibrating diaphragm is driven to push, and issue the sound.Here, the radius of the first voice coil 61 is greater than the second sound
Circle 63.First voice coil 61 can be bass coil, and the sound of low frequency is generated when driving diaphragm oscillations.Second voice coil 63 is high pitch sound
Circle generates the sound of high frequency when driving diaphragm oscillations.First voice coil 61 and the second voice coil 63 can be separately connected a vibrating diaphragm, can also
To be connected on same vibrating diaphragm, the first voice coil 61 is connected to the central area of vibrating diaphragm, the second voice coil 63 is connected to the outer rim of vibrating diaphragm
Region.
Further, referring again to Fig. 2, in some embodiments, there is interval between ringshaped magnet 30 and support column 13
Space 35, the herein radius of adjustable ringshaped magnet 30, and then adjustment the first magnetic gap 431, the second magnetic gap 433 or the
The magnetic line of force intensity of spacer portion 137 between two cyclic annular magnetic conductive boards 40 and ring flange 133.In addition, can be in clearance space 35
The influence clogged padded coaming, such as acoustical cotton etc., and the coaxial vibration of double-coil loudspeaker 1 is avoided to generate.
Further, referring again to Fig. 2, in some embodiments, the thickness of the root edge 11 of yoke 10 is by close to lug boss
13 region to periphery decrescence.It is, root edge 11 is presented intermediate protrusion, and the flat thin shape of periphery, this unrestricted the application,
It can also cooperate the shape of whole loudspeaker chamber to adjust.
In addition, in some embodiments, the thickness of the first cyclic annular magnetic conductive board 30 is by close to the region of the first central perforation 31
Decrescence to periphery.In turn, the root edge 11 of the first cyclic annular magnetic conductive board 30 and yoke 10 can go to upper and lower symmetrical thickness change, and
So that whole knot is constituted a disk like, further reduces overall volume.
Fig. 4 is the distribution diagram of magnetic line of force of coaxial double-coil loudspeaker.As shown in figure 4, the magnetic line of force can be by ringshaped magnet 20
One end (bottom end) issue, the support column 13 of yoke 10 is reached via the root edge 11 of yoke 10, then sequentially via the second magnetic gap
433, the second cyclic annular magnetic conductive board 40, first the 431, first cyclic annular magnetic conductive board 30 of magnetic gap return ringshaped magnet 20 (top).?
This, the most magnetic line of force can be issued by the lug boss 131 of yoke 10, pass through 433 (namely corresponding first sound of the second magnetic gap
The high frequency interval of circle 63), into after the second cyclic annular magnetic conductive board 40, enter back into 431 (namely corresponding first voice coil of the first magnetic gap
61 low frequency gap).Finally ringshaped magnet 20 is returned via cyclic annular magnetic conductive board 30 again.For this, lug boss 131 and the second ring
There are the second magnetic gap 433 between shape magnetic conductive board 40, and exist between the first cyclic annular magnetic conductive board 30 and the second cyclic annular magnetic conductive board 40
First magnetic gap 431, as long as therefore adjust the width of the first magnetic gap 431 and the second magnetic gap 433, can adjust and pass through it
Between density of line of magnetic force, and magnetic force and the first voice coil 61 and the second voice coil 63 that Indirect method ringshaped magnet 20 generates receive signal
Reciprocation afterwards, and then adjust the frequency response of entire coaxial double-coil loudspeaker 1.
In addition to this, referring again to Fig. 2 and simultaneously refering to Fig. 4, in some embodiments, the second cyclic annular magnetic conductive board 40 is more wrapped
Containing stepped part 45.Stepped part 45 is adjacent to the second central perforation 41, and the stepped part 45 of close first magnetic gap 431 is higher.This
One structure is being conducive to the magnetic line of force to concentrate into the second magnetic gap 433.
In addition to this, as shown in figure 4, by ringshaped magnet 20 one end issue the magnetic line of force in, also have least a portion of magnetic force
The path of line, be via yoke 10 ring flange 133 via spacer portion 137 enter the first magnetic gap 431 in, then via one ring-type
Magnetic conductive board 30 returns ringshaped magnet 20.The density of line of magnetic force in the first magnetic gap 431 can more be increased by ring flange 133, into
And the reciprocation of the magnetic force after receiving signal with the first voice coil 61 is enhanced, and reach biggish bass resonance effect.
Here, isolation ring 70 is non-magnetic material, and for example, by using aluminium ring, due to using the non-magnet material of high magnetic resistance,
Only seldom magnetic line of force is passed through isolation ring.Here, the width of isolation ring 70 is greater than the width of ring flange 133.It therefore, can be with
By the width of adjustment ring flange 133, completely cut off the height of ring 70 and the width or height of width and then adjustment spacer portion 137, comes
Adjustment passes through 433 density of line of magnetic force of the second magnetic gap.To by the cyclic annular magnetic conductive board 30 of adjustment first and the second cyclic annular magnetic conduction
The width of the distance between cyclic annular magnetic conductive board 40 of the distance between plate 40, lug boss 131 and second, ring flange 133 and isolation ring 70
Degree and adjustable first magnetic gap 431 of height and the second magnetic gap density of line of magnetic force ratio, more can be according to customized need
It asks, to meet required frequency response.
In conclusion coaxial double-coil loudspeaker 1 can pass through the first voice coil 61 and the second voice coil 63 for high frequency, low frequency
Wave band independently drives, and reaches better sound parsing effect in high frequency and low frequency part.In addition, can more share the knot of yoke 10
Structure design reaches that light weight, structure be simple, the quick effect of assembling to reduce whole component.History further, by adjustment
Between the distance between first cyclic annular magnetic conductive board 30 and the second cyclic annular magnetic conductive board 40, lug boss 131 and the second cyclic annular magnetic conductive board 40
Distance, ring flange 133 and isolation ring 70 width and the adjustable density of line of magnetic force of height, more can be according to customized need
It asks, to meet required frequency response.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the utility model, still, this
Field technical staff is it is easily understood that the protection scope of the utility model is expressly not limited to these specific embodiments.?
Under the premise of the principles of the present invention, those skilled in the art can make equivalent change to the relevant technologies feature
Or replacement, these obvious alternative forms belong to the protection scope of the utility model.
Claims (10)
1. a kind of coaxial double-coil loudspeaker characterized by comprising
Yoke includes root edge and support column, and the support column is extended by one end of the root edge, and the support column is far from institute
The one end for stating root edge has lug boss and a ring flange, the ring flange and the boss in the same face of the support column,
The ring flange has annular groove around the lug boss between the ring flange and the lug boss；
Ringshaped magnet includes the first central shaft hole, and the support column passes through first central shaft hole, and makes the ringshaped magnet
It is sheathed on the yoke, and is contacted with the root edge；
First cyclic annular magnetic conductive board, includes the first central perforation, and the support column passes through first central perforation, makes described first
Cyclic annular magnetic conductive board is set on the ringshaped magnet；
Completely cut off ring, the lug boss passes through the isolation ring, the isolation ring is made to be set to the annular groove；
Second cyclic annular magnetic conductive board, includes the second central perforation, and second central perforation has phase with first central perforation
Same central axis, the lug boss passes through second central perforation, and the described second cyclic annular magnetic conductive board is set to the isolation
On ring, there is the first magnetic gap between the described second cyclic annular magnetic conductive board and the first cyclic annular magnetic conductive board, second ring-type is led
There is the second magnetic gap between magnetic sheet and the lug boss；
First voice coil is located in first magnetic gap；And
Second voice coil is located in second magnetic gap.
2. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
The isolation ring is aluminium ring, and the height of the isolation ring is higher than the ring flange, and the height of the lug boss is higher than described
Ring flange, and there is spacer portion between the described second cyclic annular magnetic conductive board and the ring flange.
3. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
Described first cyclic annular magnetic conductive board and the second cyclic annular magnetic conductive board are located substantially at identical level height.
4. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
The diameter of first central shaft hole is greater than the diameter of the support column so that the ringshaped magnet and the support column it
Between form clearance space.
5. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
The thickness of the root edge from the region close to the lug boss to periphery decrescence.
6. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
The thickness of the first cyclic annular magnetic conductive board from the region close to first central perforation to periphery decrescence.
7. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
Described second cyclic annular magnetic conductive board further includes stepped plate, and the stepped part is adjacent to second central perforation.
8. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
First voice coil is bass coil, and second sound is because of high pitch voice coil.
9. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
The width of the isolation ring is greater than the width of the ring flange.
10. coaxial double-coil loudspeaker as described in claim 1, it is characterised in that:
The height of the ringshaped magnet is substantially identical to the height of the root edge to the ring flange top.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762550362P | 2017-08-25 | 2017-08-25 | |
| US62/550,362 | 2017-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208754543U true CN208754543U (en) | 2019-04-16 |
Family
ID=63405071
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821382532.6U Withdrawn - After Issue CN208754543U (en) | 2017-08-25 | 2018-08-24 | Coaxial double-coil loudspeaker |
| CN201810971987.XA Active CN109429151B (en) | 2017-08-25 | 2018-08-24 | Coaxial double-voice coil loudspeaker |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810971987.XA Active CN109429151B (en) | 2017-08-25 | 2018-08-24 | Coaxial double-voice coil loudspeaker |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3448061B1 (en) |
| CN (2) | CN208754543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109429151A (en) * | 2017-08-25 | 2019-03-05 | 惠州超声音响有限公司 | Coaxial double-coil loudspeaker |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217721457U (en) * | 2022-06-30 | 2022-11-01 | 瑞声光电科技(常州)有限公司 | Coaxial loudspeaker |
| CN218387875U (en) * | 2022-08-30 | 2023-01-24 | 瑞声光电科技(常州)有限公司 | Coaxial loudspeaker |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121809C (en) * | 1999-04-09 | 2003-09-17 | 张凡 | Loudspeaker |
| CN201657285U (en) * | 2010-01-11 | 2010-11-24 | 瑞声声学科技(深圳)有限公司 | Miniature double-magnetic-steel and double-voice-coil electromagnetic loudspeaker |
| US9154883B2 (en) * | 2011-09-06 | 2015-10-06 | Apple Inc. | Low rise speaker assembly having a dual voice coil driver |
| HU230260B1 (en) * | 2012-09-17 | 2015-11-30 | NOVINEX Innováció- és Kutatás-hasznosító Iroda Kft. | Coaxial loudspeker arrangemet |
| GB2502189B (en) * | 2013-03-25 | 2014-06-04 | Tannoy Ltd | Loudspeaker |
| CN103281655A (en) * | 2013-04-16 | 2013-09-04 | 沙文金 | Double-voice coil moving-coil loudspeaker |
| US9100733B2 (en) * | 2013-06-05 | 2015-08-04 | Harman International Industries, Inc. | Multi-way coaxial loudspeaker with internal magnet motor and permanent magnet cylinder |
| US9173035B2 (en) * | 2013-11-07 | 2015-10-27 | Harman International Industries, Incorporated | Dual coil moving magnet transducer |
| CN105848064B (en) * | 2016-05-10 | 2019-06-04 | 青岛歌尔声学科技有限公司 | Double magnetic gap magnetic circuit systems and loudspeaker with double magnetic gap magnetic circuit systems |
| CN208754543U (en) * | 2017-08-25 | 2019-04-16 | 惠州迪芬尼声学科技股份有限公司 | Coaxial double-coil loudspeaker |
-
2018
- 2018-08-24 CN CN201821382532.6U patent/CN208754543U/en not_active Withdrawn - After Issue
- 2018-08-24 EP EP18190740.3A patent/EP3448061B1/en active Active
- 2018-08-24 CN CN201810971987.XA patent/CN109429151B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109429151A (en) * | 2017-08-25 | 2019-03-05 | 惠州超声音响有限公司 | Coaxial double-coil loudspeaker |
| CN109429151B (en) * | 2017-08-25 | 2023-12-01 | 惠州迪芬尼声学科技股份有限公司 | Coaxial double-voice coil loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3448061B1 (en) | 2019-11-13 |
| EP3448061A1 (en) | 2019-02-27 |
| CN109429151B (en) | 2023-12-01 |
| CN109429151A (en) | 2019-03-05 |
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