CN206506706U - A kind of magnetic circuit system and loudspeaker with Nd-Fe-B magnet steel - Google Patents
A kind of magnetic circuit system and loudspeaker with Nd-Fe-B magnet steel Download PDFInfo
- Publication number
- CN206506706U CN206506706U CN201720253958.0U CN201720253958U CN206506706U CN 206506706 U CN206506706 U CN 206506706U CN 201720253958 U CN201720253958 U CN 201720253958U CN 206506706 U CN206506706 U CN 206506706U
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- CN
- China
- Prior art keywords
- magnet steel
- circuit system
- magnetic
- magnetic circuit
- loudspeaker
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Abstract
The utility model discloses a kind of magnetic circuit system and loudspeaker with Nd-Fe-B magnet steel, magnetic circuit system therein includes：Magnet steel and T iron；T iron includes：Chassis and columned magnetic conductor；Magnet steel is neodymium iron boron material magnet steel, and in the manhole that is provided centrally with of magnet steel, magnet steel is socketed on magnetic conductor, and circular counter bore is provided with the top of magnetic conductor.Magnetic circuit system and loudspeaker of the present utility model, not only can guarantee that loudspeaker sensitivity, also can effectively reduce the volume and weight of loudspeaker, and magnetic density can be improved, loudspeaker sensitivity is improved, while having accomplished lightweight, product quality and the susceptibility of user is improved.
Description
Technical field
The utility model is related to loudspeaker techniques field, more particularly to a kind of magnetic circuit system with Nd-Fe-B magnet steel and raises
Sound device.
Background technology
Loudspeaker, such as auto loud hailer are general to coordinate locating branch slice using sound basin（Also referred to as centring disk, play ripple）Knot
Structure.When assembling loudspeaker, train wheel bridge, magnet steel and T iron etc. are first combined as magnetic circuit system, then by magnetic circuit system and balancer
Pressed, magnetic circuit device is installed with balancer and is integrated.Development and people's living standard with auto manufacturing
Improve, the also more and more higher, therefore require also increasingly the acoustics of vehicle carried video system of the requirement to car audio system
It is high.At present, because being limited by material processing cost, the magnet steel of most of outer magnetic speakers still uses ferrite material.Iron oxygen
The magnet steel of body material can only increase the volume of magnet steel for the requirement of loudspeaker sensitivity, cause magnet steel weight and loudspeaker total
Weight constantly becomes big, is unfavorable for the lightweight and volume optimization of loudspeaker.
Utility model content
In view of this, a technical problem to be solved in the utility model is to provide a kind of magnetic circuit with Nd-Fe-B magnet steel
System and loudspeaker, the problem of can solve the problem that above-mentioned.
According to one side of the present utility model there is provided a kind of magnetic circuit system with Nd-Fe-B magnet steel, including：Magnet steel
With T iron；The T iron includes：Chassis and columned magnetic conductor；The magnet steel is neodymium iron boron material magnet steel, in the magnet steel
Manhole is provided centrally with, the magnet steel is socketed on the magnetic conductor, it is circular heavy to be provided with the top of the magnetic conductor
Hole.
Alternatively, the magnet steel includes multi-disc neodymium iron boron material magnetic sheet, and the multi-disc neodymium iron boron material magnetic sheet passes through bonding
Agent is bonded together, and forms the magnet steel.
Alternatively, the shape of cross section of the magnet steel includes：Circular, polygon.
Alternatively, the surface of the magnet steel and the T iron is provided with zinc coat.
Alternatively, the center line of the manhole, the center line of the counterbore are overlapped with the center line of the magnetic conductor.
Alternatively, annular groove is provided with the upper surface on the chassis, the annular groove is arranged on the chassis
With the connecting portion of the magnetic conductor.
Alternatively, the chassis is cylindric or round table-like, wherein, when the chassis is round table-like, the chassis
Bus is straight line or camber line.
Alternatively, voice coil loudspeaker voice coil；The voice coil loudspeaker voice coil includes speech coil framework, and the speech coil framework is socketed on the magnetic conductor, in institute
The bottom for stating speech coil framework is wound with voice coil loudspeaker voice coil coil；A row or multi-row through hole is provided with the side wall of the speech coil framework.
Alternatively, an exhausting hole is provided with the side wall of the speech coil framework and above the voice coil loudspeaker voice coil coil,
Wherein, the quantity of an exhausting hole is 6, and circumference of 6 through holes along the speech coil framework is uniformly distributed.
According to other side of the present utility model there is provided a kind of loudspeaker, including there is neodymium-iron-boron as described above
The magnetic circuit system of steel.
Magnetic circuit system and loudspeaker of the present utility model with Nd-Fe-B magnet steel, magnet steel are neodymium iron boron material magnet steel, no
Loudspeaker sensitivity is only can guarantee that, also can effectively reduce the volume and weight of loudspeaker, it is possible to improve magnetic density, improve
Loudspeaker sensitivity, while having accomplished lightweight, improves product quality and the susceptibility of user.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
Only it is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying creative labor
Under the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the decomposing schematic representation of one embodiment of the magnetic circuit system of the present utility model with Nd-Fe-B magnet steel；
Fig. 2 is the assembling schematic diagram of one embodiment of the magnetic circuit system of the present utility model with Nd-Fe-B magnet steel；
Fig. 3 shows for the structure of the magnet steel in one embodiment of the magnetic circuit system of the present utility model with Nd-Fe-B magnet steel
It is intended to；
Fig. 4 for the magnetic circuit system of the present utility model with Nd-Fe-B magnet steel one embodiment in T iron structural representation
Figure；
Fig. 5 for the magnetic circuit system of the present utility model with Nd-Fe-B magnet steel one embodiment in voice coil loudspeaker voice coil structural representation
Figure.
Embodiment
The utility model is described more fully with reference to the accompanying drawings, wherein illustrating exemplary reality of the present utility model
Apply example.Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole realities
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of the utility model protection.It is new to this practicality with reference to figure and embodiment
The technical scheme of type carries out many descriptions.
As Figure 1-5, the utility model provides a kind of magnetic circuit system with Nd-Fe-B magnet steel, including：Train wheel bridge 1,
Magnet steel 2 and T iron 3.T iron 3 includes：Chassis 32 and columned magnetic conductor 31.Magnet steel 2 is neodymium iron boron material magnet steel, in magnet steel 2
Manhole 21 is provided centrally with, magnet steel 2 is socketed on magnetic conductor 31, and the top of magnetic conductor 31 is provided with circular counter bore.
Magnet steel 2 can have various structures.For example, magnet steel 2 includes multi-disc neodymium iron boron material magnetic sheet, multi-disc neodymium iron boron material magnetic
Piece together, forms magnet steel by adhesive bond.Binding agent can be insulating binder.The shape of cross section of magnet steel 2 can be with
Have a variety of, including：Circle, quadrangle, hexagon etc..The surface of magnet steel 2 and T iron 1 is provided with zinc coat.
Center line, the center line of counterbore 33 of manhole 31 are overlapped with the center line of magnetic conductor 31.Magnet steel 2 is annulus knot
Structure, magnet steel 2 is socketed on magnetic conductor 11.Train wheel bridge 1 is outer thick interior thin circular ring structure, and train wheel bridge 1 is socketed on magnetic conductor, and
Positioned at the top of magnet steel 2.Train wheel bridge 1, magnet steel 2 and T iron 3 pass through glue bond.Train wheel bridge 1 is in outer thick interior thin shape so that upper folder
The magnetic density rise located close to or within magnetic gap between plate 1 and T iron 3, improves loudspeaker sensitivity.
The center line of counterbore 33 is overlapped with the center line of magnetic conductor 31, and the depth of counterbore 33 is the 1/3- of the height of magnetic conductor 31
2/3.The magnetic conductor at T iron center has counterbore so that magnetic saturation density is reduced at the counterbore on magnetic conductor top.On chassis 32
Annular groove 34 is provided with upper surface, annular groove 34 is arranged on the connecting portion on chassis 32 and magnetic conductor 31, improves and lead
Magnetic efficiency, reduces the volume and weight of T iron.Chassis 32 can be cylindric or round table-like, when chassis 32 is round table-like, chassis
32 bus is straight line or camber line.
Voice coil loudspeaker voice coil 4 includes speech coil framework 41, and speech coil framework 41 is socketed on magnetic conductor 31, is wound in the bottom of speech coil framework 41
There is voice coil loudspeaker voice coil coil 43, coil 43 has voice coil leads 44.A row or multi-row through hole 42 is provided with the side wall of speech coil framework 41.
For example, an exhausting hole 42 is provided with the side wall of speech coil framework 41 and positioned at the top of voice coil loudspeaker voice coil coil 43, its
In, the quantity of an exhausting hole 42 can be 6, and circumference of 6 through holes 42 along speech coil framework 41 is uniformly distributed, and can be reduced by sound
The ferromagnetic variable density amounts of T caused by circle up and down motion, reduce loudspeaker distortions.
Be, for example, outer magnetic speaker in one embodiment there is provided a kind of loudspeaker, including as above with neodymium-iron-boron
The magnetic circuit system of steel.
The magnetic circuit system and loudspeaker with Nd-Fe-B magnet steel in above-described embodiment, magnet steel is neodymium iron boron material magnet steel,
Loudspeaker sensitivity is not only can guarantee that, also can effectively reduce the volume and weight of loudspeaker, it is possible to improve magnetic density, is lifted
Loudspeaker sensitivity, makes the outward appearance of loudspeaker compact attractive in appearance, while having accomplished lightweight, improves product quality and user
Susceptibility.
Above-mentioned any technical scheme disclosed in the utility model unless otherwise stated, if it discloses number range,
So disclosed number range is preferred number range, it is any it should be appreciated by those skilled in the art：It is preferred that numerical value
Scope is only the obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more,
It is impossible to exhaust, so the utility model just discloses component values to illustrate the technical solution of the utility model, also, it is above-mentioned
The numerical value enumerated should not constitute the limitation that protection domain is created to the utility model.
Meanwhile, if above-mentioned the utility model is open or relate to the parts or structural member of connection fastened to each other, then,
Unless otherwise stated, it is fixedly connected and can be understood as：Can releasably it be fixedly connected（For example using bolt or mode connects for screw）,
It can be understood as：It is non-removable to be fixedly connected（For example rivet, weld）, certainly, connection fastened to each other can also be integral type
Structure（For example manufactured using casting technique is integrally formed）Replaced（Substantially can not be using except integrally formed technique）.
In addition, being used for applied in any technical scheme disclosed in above-mentioned the utility model represents position relationship or shape
Term unless otherwise stated its implication include approximate with its, similar or close state or shape.What the utility model was provided
Either component can be assembled by multiple single parts, or the list that integrally formed technique is manufactured
Only part.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Still embodiment of the present utility model can be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (10)
1. a kind of magnetic circuit system with Nd-Fe-B magnet steel, it is characterised in that including：
Magnet steel and T iron；T iron includes：Chassis and columned magnetic conductor；The magnet steel is neodymium iron boron material magnet steel, in the magnetic
Steel is provided centrally with manhole, and the magnet steel is socketed on the magnetic conductor, circle is provided with the top of the magnetic conductor
Shape counterbore.
2. magnetic circuit system as claimed in claim 1, it is characterised in that
The magnet steel includes multi-disc neodymium iron boron material magnetic sheet, and the multi-disc neodymium iron boron material magnetic sheet is by adhesive bond one
Rise, form the magnet steel.
3. magnetic circuit system as claimed in claim 2, it is characterised in that
The shape of cross section of the magnet steel includes：Circular, polygon.
4. magnetic circuit system as claimed in claim 1, it is characterised in that
The surface of the magnet steel and the T iron is provided with zinc coat.
5. magnetic circuit system as claimed in claim 1, it is characterised in that
The center line of the manhole, the center line of the counterbore are overlapped with the center line of the magnetic conductor.
6. magnetic circuit system as claimed in claim 5, it is characterised in that
Annular groove is provided with the upper surface on the chassis, the annular groove is arranged on the chassis and the magnetic conductor
Connecting portion.
7. magnetic circuit system as claimed in claim 5, it is characterised in that
The chassis to be cylindric or round table-like, wherein, when the chassis for it is round table-like when, the bus on the chassis for straight line or
Camber line.
8. magnetic circuit system as claimed in claim 1, it is characterised in that also include：
Voice coil loudspeaker voice coil；The voice coil loudspeaker voice coil includes speech coil framework, and the speech coil framework is socketed on the magnetic conductor, in the speech coil framework
Bottom is wound with voice coil loudspeaker voice coil coil；A row or multi-row through hole is provided with the side wall of the speech coil framework.
9. magnetic circuit system as claimed in claim 8, it is characterised in that
An exhausting hole is provided with the side wall of the speech coil framework and above the voice coil loudspeaker voice coil coil, wherein, described one
The quantity of exhausting hole is 6, and circumference of 6 through holes along the speech coil framework is uniformly distributed.
10. a kind of loudspeaker, it is characterised in that：
Including the magnetic circuit system with Nd-Fe-B magnet steel as described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253958.0U CN206506706U (en) | 2017-03-16 | 2017-03-16 | A kind of magnetic circuit system and loudspeaker with Nd-Fe-B magnet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253958.0U CN206506706U (en) | 2017-03-16 | 2017-03-16 | A kind of magnetic circuit system and loudspeaker with Nd-Fe-B magnet steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206506706U true CN206506706U (en) | 2017-09-19 |
Family
ID=59832986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720253958.0U Expired - Fee Related CN206506706U (en) | 2017-03-16 | 2017-03-16 | A kind of magnetic circuit system and loudspeaker with Nd-Fe-B magnet steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206506706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454532A (en) * | 2017-09-27 | 2017-12-08 | 嘉兴市金利达电子有限公司 | A kind of double regulation magnetic circuits of loudspeaker |
| CN110620985A (en) * | 2019-09-27 | 2019-12-27 | 厦门三立电子有限公司 | Small neodymium iron boron strip magnetic bonding process |
-
2017
- 2017-03-16 CN CN201720253958.0U patent/CN206506706U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454532A (en) * | 2017-09-27 | 2017-12-08 | 嘉兴市金利达电子有限公司 | A kind of double regulation magnetic circuits of loudspeaker |
| CN107454532B (en) * | 2017-09-27 | 2023-09-05 | 嘉兴市金利达电子有限公司 | Double-regulation loudspeaker magnetic circuit system |
| CN110620985A (en) * | 2019-09-27 | 2019-12-27 | 厦门三立电子有限公司 | Small neodymium iron boron strip magnetic bonding process |
| CN110620985B (en) * | 2019-09-27 | 2020-08-25 | 厦门三立电子有限公司 | Small neodymium iron boron strip magnetic bonding process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20180316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |