CN109451405A - A kind of double diaphragm such as magnetic type loudspeaker - Google Patents
A kind of double diaphragm such as magnetic type loudspeaker Download PDFInfo
- Publication number
- CN109451405A CN109451405A CN201811363887.5A CN201811363887A CN109451405A CN 109451405 A CN109451405 A CN 109451405A CN 201811363887 A CN201811363887 A CN 201811363887A CN 109451405 A CN109451405 A CN 109451405A
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- Prior art keywords
- vibrating diaphragm
- coil
- rear end
- permanent magnet
- parallel
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- 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
- 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
- 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)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention relates to a kind of double diaphragm such as magnetic type loudspeakers, comprising: periphery is fixed in the front end vibrating diaphragm and rear end vibrating diaphragm arranged in parallel on frame and being in tensioning state；It is provided with first coil on the front end vibrating diaphragm, is provided with the second coil on the rear end vibrating diaphragm；Series connection and/or parallel connection between the first coil and second coil；Center permanent magnet array is made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged in a plane parallel with the front end vibrating diaphragm, are set between the front end vibrating diaphragm and the rear end vibrating diaphragm.Texture of coil, coil walks wire shaped above vibrating diaphragm and vibrating diaphragm of the present invention by configuring different-thickness adjust frequency response curve, have reached good sounding effect.
Description
Technical field
The present invention relates to speaker technology field more particularly to a kind of double diaphragm such as magnetic type loudspeakers.
Background technique
Flat panel speaker combines the advantages of both moving-coil speaker and electrostatic loudspeaker, and electrostatic is compared in terms of low frequency
Formula possesses better performance, and is also better than moving-coil type in terms of high frequency.The structure of the energy converter of its core is usually in magnetic yoke
On be arranged in parallel with multiple bar permanent magnets, the magnetic pole strength configured in parallel relative to these permanent magnets has vibrating diaphragm, on vibrating diaphragm
The position opposed with permanent magnet is provided with coil.The electric current of coil inside flowing and the magnetic field orthotropic generated by permanent magnet, in this way,
By the alternating current that circulates in coil, coil is to generate the power for deferring to Faraday's law, and vibrating diaphragm is hanging down under this force
Histogram vibrates upwards, which is transformed to voice signal.
More typical plate diaphragm for transducer structure includes the vibrating diaphragm that periphery is supported by frame, the coil on vibrating diaphragm with lead
Line electrical connection.In this panel earphone transducer designs, coil has direct influence for energy converter sounding effect.
In said structure, improving coil when length, can effectively promote the efficiency of loudspeaker in magnetic field.But increase coil
Conductor length can improve coil resistance value, and then reduce electric current under the premise of hold-in winding conductor thickness；And improve coil thickness
Degree then will increase oscillating mass.
When coil is heavier, high frequency response can be made low, and keep the resonance cycle of high range low, and when vibration matter
When measuring big, since inertia is larger, the transient response of sound is made to be deteriorated, thus usually design when plate energy converter wish to obtain it is lower
Mass of coil.
Summary of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, propose a kind of double diaphragm such as magnetic type loudspeaker, the such as magnetic type
Loudspeaker be arranged two layers of vibrating diaphragm, and the texture of coil above vibrating diaphragm and vibrating diaphragm by configuring different-thickness, coil walk it is linear
Shape adjusts frequency response curve, has reached good sounding effect.
In order to achieve the above object of the invention, present invention firstly provides a kind of double diaphragm such as magnetic type loudspeaker, be by with
What lower technical solution was realized: a kind of double diaphragm such as magnetic type loudspeaker, comprising: periphery is fixed on frame and is in tensioning shape
The front end vibrating diaphragm and rear end vibrating diaphragm arranged in parallel of state；First coil, the rear end vibration are provided on the front end vibrating diaphragm
The second coil is provided on film；Series connection and/or parallel connection between the first coil and second coil；Center permanent magnet battle array
Column, are made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged in one and the front end vibrating diaphragm
In parallel plane, it is set between the front end vibrating diaphragm and the rear end vibrating diaphragm.
In a preferred embodiment, double diaphragm such as magnetic type loudspeaker of the invention further includes front end permanent magnet array, described
Front end permanent magnet array is made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged parallel in one
In in the plane of the front end vibrating diaphragm, being set to side of the front end vibrating diaphragm far from the center permanent magnet array.
In a preferred embodiment, double diaphragm such as magnetic type loudspeaker of the invention further includes rear end permanent magnet array, described
Rear end permanent magnet array is made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged parallel in one
In in the plane of the rear end vibrating diaphragm, being set to side of the rear end vibrating diaphragm far from the center permanent magnet array.
In a preferred embodiment, double diaphragm such as magnetic type loudspeaker of the invention had both included front end permanent magnet array, was also wrapped
Rear end permanent magnet array is included, the front end permanent magnet array is made of several bar permanent magnets being parallel to each other；Those strips are forever
Magnet is intervally arranged to be parallel in the plane of the front end vibrating diaphragm in one, is set to the front end vibrating diaphragm far from the center forever
The side of magnet array；The rear end permanent magnet array is made of several bar permanent magnets being parallel to each other；Those strip-shaped permanent-magnets
Body is intervally arranged to be parallel in the plane of the rear end vibrating diaphragm in one, is set to the rear end vibrating diaphragm far from the center permanent magnetism
The side of volume array.
The first coil is routed by the first conductor material rule and is formed, and second coil is by the second conductor material rule
Wiring is formed.
The first conductor material is selected from one of gold and platinum；The material of second conductor be selected from carbon, copper, aluminium, silver,
One of copper alloy and aluminium alloy.
Compared with prior art, the beneficial effects of the present invention are:
1, in the magnet magnetic structure of the magnetic speakers such as conventional, vibrating diaphragm is equivalent to the magnetic field for being applied only for magnet side,
The other side absolutely not utilizes.When two layers of vibrating diaphragm is arranged, length of the conducting wire in magnetic field is not only increased, and utilize simultaneously
The efficiency of loudspeaker can be substantially improved in the magnetic field of magnet two sides.Through overtesting, (center is arranged forever in same single-ended magnetic structure
Magnet array), the efficiency of loudspeaker greatly improved in the high 2~3dB of sensitivity value of Double-vibrating-diaspeaker speaker.
2, vibrating diaphragm thickness is extremely low, will not hinder passing through for sound wave.And two layers of vibrating diaphragm be parallel and on same axis, phase
Level is true, is distorted small.
3, the texture of coil above the vibrating diaphragm and vibrating diaphragm by configuring different-thickness, coil walks wire shaped are come complementary frequency response
Curve carries out reasonable disposition for the frequency characteristic of different vibrating diaphragms, greatly improves sound quality.
Detailed description of the invention
By the description carried out with reference to the accompanying drawing to its exemplary embodiment, features described above and advantage of the present invention will become
It obtains more clear and is readily appreciated that.
Fig. 1 is the structural schematic diagram of double diaphragm such as magnetic type loudspeaker embodiment 1 of the present invention.
Fig. 2 is a kind of structural schematic diagram of double diaphragm such as magnetic type loudspeaker embodiment 2 of the present invention.
Fig. 3 is another structural schematic diagram of double diaphragm such as magnetic type loudspeaker embodiment 2 of the present invention.
Fig. 4 is the structural schematic diagram of double diaphragm such as magnetic type loudspeaker embodiment 3 of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, in order to the understanding of technical staff of the same trade:
In Figs. 1-4, label respectively indicates: frame 1, front end vibrating diaphragm 2, first coil 3, rear end vibrating diaphragm 4, the second coil
5, center permanent magnet array 6, front end permanent magnet array 7, rear end permanent magnet array 8.
Embodiment 1
Shown in Figure 1, the embodiment of the present invention proposes a kind of double diaphragm such as magnetic type loudspeaker, uses single magnet array junctions
Structure, comprising: the periphery of front end vibrating diaphragm 2 and rear end vibrating diaphragm 4, front end vibrating diaphragm 2 and rear end vibrating diaphragm 4 is fixed on frame 2, and is located
In tensioning state.
First coil 3 is provided on front end vibrating diaphragm 2, first coil 3 is routed by the first conductor material rule and is formed, and is arranged
In the center of front end vibrating diaphragm 2.First coil 3 is in full of twists and turns bow-shaped structural.First conductor material is in gold and platinum
One kind.In the present embodiment, the first conductor material is gold, is obtained by adherency goldleaf, gas phase or liquid deposition, first coil
3 thickness should be uniform as far as possible.Obviously, it will be understood by those skilled in the art that the first coil 3 can also be by existing
Have other in technology can form the technology of conductor layer to obtain on vibrating diaphragm.
The second coil 5 is provided on rear end vibrating diaphragm 4, the second coil 5 is routed by the second conductor material rule and is formed, and is arranged
In the center of rear end vibrating diaphragm 4.Second coil 5 is equally in full of twists and turns bow-shaped structural.The material of second conductor be selected from carbon,
One of copper, aluminium, silver, copper alloy and aluminium alloy.The second conductor material is aluminium in the present embodiment, by adhering to aluminium foil, gas
Mutually or liquid deposition obtains.Obviously, it will be understood by those skilled in the art that second coil 5 can also be by the prior art
It is other the technology of conductor layer to be formed on vibrating diaphragm to obtain.First coil 3 and 5 both ends of the second coil are by being set to frame
Conducting wire on frame 2 is drawn, and the parallel connection between first coil 3 and the second coil 5 is realized by the connection between conducting wire.Due to this
Electric connection structure is based on existing coil and conductor connections, is known to the skilled person technology, therefore details are not described herein.
Center permanent magnet array 6 is made of several bar permanent magnets being parallel to each other, those bar permanent magnets use high standard
The ndfeb magnet of number (N50 or more) is made.Bar permanent magnet, which is intervally arranged, is parallel to front end vibrating diaphragm 2 and rear end vibration in one
In plane between film 4.
When input signal, 5 stress of first coil 3 and the second coil, the two direction of motion is identical with variation tendency,
To drive 4 vibration sounding of front end vibrating diaphragm 2 and rear end vibrating diaphragm.
Embodiment 2:
Shown in Figure 2, the embodiment of the present invention provides a kind of double diaphragm such as magnetic type loadspeaker structure, is in embodiment 1
On the basis of increase front end permanent magnet array 7, the front end permanent magnet array 7 is equally by several bar permanent magnet structures being parallel to each other
At those bar permanent magnets are made of the ndfeb magnet of high grade (N50 or more).Bar permanent magnet is intervally arranged in one
In a plane for being parallel to 2 outside of front end vibrating diaphragm, and it is correspondingly arranged with first coil 3.Front end permanent magnet array 7 is set to front end
The magnetic field collective effect of side of the vibrating diaphragm 2 far from center permanent magnet array 6, front end permanent magnet array 7 and center permanent magnet array 6
Coil on front end vibrating diaphragm 2 constitutes push-pull type structure.
Shown in Figure 3 again, it is to implement that the embodiment of the present invention, which provides another double diaphragm such as magnetic type loadspeaker structure,
Rear end permanent magnet array 8 is increased on the basis of example 1, the rear end permanent magnet array 8 equally by several strips being parallel to each other forever
Magnet is constituted, those bar permanent magnets are made of the ndfeb magnet of high grade (N50 or more).Bar permanent magnet interval row
It is distributed in one to be parallel in the plane in 4 outside of rear end vibrating diaphragm, and is correspondingly arranged with the second coil 5.Rear end permanent magnet array 8 is arranged
In side of the rear end vibrating diaphragm 4 far from center permanent magnet array 6, the magnetic field of rear end permanent magnet array 8 and center permanent magnet array 6 is total
Same-action constitutes push-pull type structure in the coil on rear end vibrating diaphragm 4.
Embodiment 3:
Shown in Figure 4, the embodiment of the present invention provides another double diaphragm such as magnetic type loadspeaker structure, the present embodiment knot
The bar permanent magnet arrangement for having closed embodiment 1 and embodiment 2 increases on the basis of with center permanent magnet array 6
Front end permanent magnet array 7 and rear end permanent magnet array 8 make the two sides of front end vibrating diaphragm 2 and rear end vibrating diaphragm 4 be equipped with permanent magnet battle array
Column.
Front end permanent magnet array 7 is identical as 8 structure of rear end permanent magnet array and is correspondingly arranged, 7 He of front end permanent magnet array
Rear end permanent magnet array 8 is equally made of several bar permanent magnets being parallel to each other, those bar permanent magnets use high grade
The ndfeb magnet of (N50 or more) is made.Front end permanent magnet array 7 is set to front end vibrating diaphragm 2 far from center permanent magnet array 6
Side, the magnetic field collective effect of front end permanent magnet array 7 and center permanent magnet array 6 constitutes in the coil on front end vibrating diaphragm 2
Push-pull type structure；Rear end permanent magnet array 8 is set to side of the rear end vibrating diaphragm 4 far from center permanent magnet array 6, rear end permanent magnet
The magnetic field collective effect of array 8 and center permanent magnet array 6 constitutes push-pull type structure in the coil on rear end vibrating diaphragm 4.
Compared with prior art, the beneficial effect of the embodiment of the present invention is:
1, in the magnet magnetic structure of the magnetic speakers such as conventional, vibrating diaphragm is equivalent to the magnetic field for being applied only for magnet side,
The other side absolutely not utilizes.When two layers of vibrating diaphragm is arranged, length of the conducting wire in magnetic field is not only increased, and utilize simultaneously
The efficiency of loudspeaker can be substantially improved in the magnetic field of magnet two sides.Through overtesting, (center is arranged forever in same single-ended magnetic structure
Magnet array), the efficiency of loudspeaker greatly improved in the high 2~3dB of sensitivity value of Double-vibrating-diaspeaker speaker.
2, vibrating diaphragm thickness is extremely low, will not hinder passing through for sound wave.And two layers of vibrating diaphragm be parallel and on same axis, phase
Level is true, is distorted small.
3, the texture of coil above the vibrating diaphragm and vibrating diaphragm by configuring different-thickness, coil walks wire shaped are come complementary frequency response
Curve carries out reasonable disposition for the frequency characteristic of different vibrating diaphragms, greatly improves sound quality.
Invention intention of the invention and embodiment are described in detail above by multiple embodiments, but this hair
Bright one of ordinary skill in the art are appreciated that above embodiments of the present invention are merely a preferred embodiment of the present invention,
For length limitation, all embodiments cannot be enumerated one by one here, any the claims in the present invention technical solution that can embody
Implement, all within the scope of the present invention.
Claims (6)
1. a kind of double diaphragm such as magnetic type loudspeaker characterized by comprising
Periphery is fixed in the front end vibrating diaphragm and rear end vibrating diaphragm arranged in parallel on frame and being in tensioning state；It is described
It is provided with first coil on the vibrating diaphragm of front end, is provided with the second coil on the rear end vibrating diaphragm；The first coil and described second
Series connection and/or parallel connection between coil；
Center permanent magnet array is made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged in one
In a plane parallel with the front end vibrating diaphragm, it is set between the front end vibrating diaphragm and the rear end vibrating diaphragm.
2. double diaphragm such as magnetic type loudspeaker according to claim 1, it is characterised in that: it further include front end permanent magnet array,
The front end permanent magnet array is made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged in one
It is parallel in the plane of the front end vibrating diaphragm, is set to side of the front end vibrating diaphragm far from the center permanent magnet array.
3. double diaphragm such as magnetic type loudspeaker according to claim 1, it is characterised in that: it further include rear end permanent magnet array,
The rear end permanent magnet array is made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged in one
It is parallel in the plane of the rear end vibrating diaphragm, is set to side of the rear end vibrating diaphragm far from the center permanent magnet array.
4. double diaphragm such as magnetic type loudspeaker according to claim 2, it is characterised in that: it further include rear end permanent magnet array,
The rear end permanent magnet array is made of several bar permanent magnets being parallel to each other；Those bar permanent magnets are intervally arranged in one
It is parallel in the plane of the rear end vibrating diaphragm, is set to side of the rear end vibrating diaphragm far from the center permanent magnet array.
5. double diaphragm such as magnetic type loudspeaker according to any one of claims 1-4, it is characterised in that: the first coil
It is routed and is formed by the first conductor material rule, second coil is routed by the second conductor material rule and is formed.
6. a kind of double diaphragm such as magnetic type loudspeaker according to claim 5, it is characterised in that: the first conductor material choosing
From one of gold and platinum；The material of second conductor is selected from one of carbon, copper, aluminium, silver, copper alloy and aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363887.5A CN109451405A (en) | 2018-11-16 | 2018-11-16 | A kind of double diaphragm such as magnetic type loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363887.5A CN109451405A (en) | 2018-11-16 | 2018-11-16 | A kind of double diaphragm such as magnetic type loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109451405A true CN109451405A (en) | 2019-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363887.5A Pending CN109451405A (en) | 2018-11-16 | 2018-11-16 | A kind of double diaphragm such as magnetic type loudspeaker |
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| CN (1) | CN109451405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI811670B (en) * | 2020-05-26 | 2023-08-11 | 聖德斯貴股份有限公司 | Magnetic structure of speaker |
-
2018
- 2018-11-16 CN CN201811363887.5A patent/CN109451405A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI811670B (en) * | 2020-05-26 | 2023-08-11 | 聖德斯貴股份有限公司 | Magnetic structure of speaker |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210304 Address after: 2 / F, North building, 1339 Shuixiu Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Head-Direct (Kushan) Co.,Ltd. Address before: Building b-824, No. 5, Lanyuan Road, Huayuan Industrial Park, Binhai New Area, Xiqing District, Tianjin Applicant before: HIFIMAN (TIANJIN) TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190308 |
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| RJ01 | Rejection of invention patent application after publication |