CN207304905U - Magnetic circuit system and loudspeaker monomer - Google Patents
Magnetic circuit system and loudspeaker monomer Download PDFInfo
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- CN207304905U CN207304905U CN201721072770.2U CN201721072770U CN207304905U CN 207304905 U CN207304905 U CN 207304905U CN 201721072770 U CN201721072770 U CN 201721072770U CN 207304905 U CN207304905 U CN 207304905U
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- magnet
- circuit system
- magnetic circuit
- substrate
- magnetic
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Abstract
It the utility model is related to a kind of magnetic circuit system and loudspeaker monomer.The magnetic circuit system includes conductive magnetic yoke and centring magnet；The conductive magnetic yoke includes substrate and the bending part with the substrate connection, and centring magnet is arranged on the middle part of the substrate, side magnet is provided with the substrate edges in the outside of the centring magnet；The bending part corresponds to the side magnet and sets, and towards the side bending for being equipped with the centring magnet and the side magnet, blocks in the outside of the side magnet.The magnetic circuit system of the utility model, by setting bending part, can be shielded with the magnetic field of opposite side magnet, effectively reduce the generation of leakage field phenomenon.
Description
Technical field
Acoustic-electric switch technology field is the utility model is related to, more particularly, to the magnetic circuit system available for acoustic element,
And the loudspeaker monomer using this magnetic circuit system.
Background technology
In mobile phone complete machine structure, loudspeaker monomer can generally be set close to camera.And in order to ensure the property of camera
Can, the leakage field upper limit value of loudspeaker monomer can be there are certain requirements.Wherein, in loudspeaker monomer, the leakage field near magnet shows
As the most obvious.In order to reduce the generation of leakage field phenomenon, magnet size can be reduced in the prior art, but this will cause loudspeaker
The performance loss of monomer.
Utility model content
One purpose of the utility model is to provide a kind of new solution of magnetic circuit system.
A kind of one side according to the present utility model, there is provided magnetic circuit system.The magnetic circuit system includes conductive magnetic yoke and center
Magnet；The conductive magnetic yoke includes substrate and the bending part with the substrate connection；The centring magnet is arranged on the substrate
Middle part, be provided with side magnet on the substrate edges in the outside of the centring magnet；The bending part corresponds to the side magnet and sets
Put, and towards the side bending for being equipped with the centring magnet and the side magnet, block in the outside of the side magnet.
Alternatively, the bending part is set perpendicular to the substrate.
Alternatively, the top surface of the bending part is no more than the top surface of the side magnet.
Alternatively, the bending part is handled by blank pressing technology, its thickness is less than the substrate thickness.
Alternatively, the side magnet includes two pieces, is oppositely disposed at the both sides of the centring magnet, each side magnetic
Blocked by the corresponding bending part in the outside of iron.
Alternatively, the substrate is not provided with being equipped with side wall in two other of magnet, the side wall and the center
Magnet forms a part for magnetic gap.
Alternatively, the side magnet includes four pieces, is set around the centring magnet, and the bending part is arranged on the base
On four sides of plate.
Alternatively, the magnetic conductive board when being correspondingly arranged on magnet, is correspondingly arranged on center on the centring magnet and leads
Magnetic sheet.
A kind of other side according to the present utility model, there is provided loudspeaker monomer.The monomer includes above-mentioned magnetic circuit system
System and vibrational system.
Alternatively, shell and vibrational system are further included, the shell is used to house the fixed vibrational system and magnetic circuit system
System, the vibrational system include vibrating diaphragm and the voice coil loudspeaker voice coil being incorporated on vibrating diaphragm, and the vibrating diaphragm is fixed on the upper end of the shell, described
Voice coil loudspeaker voice coil is stretched into the magnetic gap that the magnetic circuit system is formed.
Alternatively, further include front housing, the front housing installation on the housing, the vibrating diaphragm be located at the front housing with it is described
Between shell, the accommodation space that can accommodate the vibrational system and magnetic circuit system is formd between the front housing and the shell.
One of the utility model has technical effect that, by setting bending part, can be shielded with the magnetic field of opposite side magnet
Cover, effectively reduce the generation of leakage field phenomenon.
Another of the utility model has technical effect that, there is provided one kind reduces the generation of leakage field phenomenon, and does not influence
The loudspeaker monomer of performance loss.
By referring to the drawings to the detailed description of the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will be made apparent from.
Brief description of the drawings
The attached drawing of a part for constitution instruction describes the embodiment of the utility model, and uses together with the description
In the principle for explaining the utility model.
Fig. 1 is a kind of structure diagram of the conductive magnetic yoke in the magnetic circuit system of the utility model.
Fig. 2 is provided with the front view of the loudspeaker monomer of the conductive magnetic yoke in Fig. 1.
Fig. 3 is the A-A sectional views in Fig. 2.
Fig. 4 is another structure diagram of the conductive magnetic yoke in the magnetic circuit system of the utility model.
Fig. 5 is provided with the front view of the loudspeaker monomer of the conductive magnetic yoke in Fig. 4.
Fig. 6 is the B-B sectional views in Fig. 5.
Fig. 7 is the C-C sectional views in Fig. 5.
Embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：It is unless another
Illustrate outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology and equipment known to person of ordinary skill in the relevant, but in appropriate situation
Under, the technology and equipment should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
A kind of one embodiment according to the present utility model, there is provided magnetic circuit system.As shown in figs. 1-7, the present embodiment
Magnetic circuit system, including conductive magnetic yoke 1 and centring magnet 2.Conductive magnetic yoke 1 includes substrate 11, and the bending part 12 being connected with substrate 11.
Wherein, centring magnet 2 is arranged on the middle part of substrate 11.On the substrate edges in the outside of centring magnet 2, side magnet can be provided with
4, bending part 12 be arranged on 4 corresponding position of side magnet, also, bending part 12 is towards equipped with side magnet 4 and centring magnet 2
Direction is bent, and then is blocked in the outside of side magnet 4.
In this way, on the premise of 4 size of centring magnet 2 and side magnet is not reduced, bending part 12 is by centring magnet 2 and side magnetic
Iron 4 is blocked in conductive magnetic yoke 1, can be shielded with the magnetic field of opposite side magnet 4 and centring magnet 2, can effectively reduce by 4 He of side magnet
The generation of the leakage field phenomenon on side of centring magnet 2.
Further, bending part 12 is set perpendicular to the substrate 11.In this way, compared with being obliquely installed, it is vertically arranged curved
Folding part 12, can cause bending part 12 to be parallel to each other with side magnet 4, so that, the shielded area of opposite side magnet 4 can be increased.
Wherein, the height of blocking of 12 opposite side magnet 4 of bending part is not limited, and can is all height of side magnet 2, also may be used
To be the height of 2 half of side magnet and the above.Preferably, the top surface of bending part is no more than the top surface of side magnet 4.In this way,
Can either the effectively magnetic field of shielded magnet 4 and centring magnet 2, and will not occurring because of excessive height and with other components dry
Relate to.In other examples, the top surface of bending part 12 can also be exceed while magnet 4 top surface but no more than while magnetic conductive board 5
Top surface.
Referring to figs. 1 to shown in Fig. 7, bending part 12 is handled by blank pressing technology, forms flanging 13 so that 13 thickness of flanging is small
In the thickness of substrate 11.In this way, due to the presence of thickness difference, an avoiding space can be formed.Connect in conductive magnetic yoke 1 and shell 10
When connecing, it can be used for avoiding the structure on shell 10.Meanwhile by avoiding, solves the limitation spatially to conductive magnetic yoke 1.
Referring to figs. 1 to shown in Fig. 3, wherein, side magnet 4 can be two, and be oppositely arranged on the two of centring magnet 2
Side.At this time, bending part 12 is also two, and the outside of each side magnet 4 is blocked as the bending part 12 corresponding to it.And substrate
11 are not provided with being equipped with side wall 14 in two other of magnet 4, and side wall 14 forms a part for magnetic gap with centring magnet 2.
With reference to shown in figure 4 to Fig. 7, especially by the sectional view in Fig. 6 and Fig. 7 as it can be seen that wherein, side magnet 4 can be four,
Or side magnet 4 is annular, is set around centring magnet 2.At this time, bending part 12 is arranged on four sides of substrate 11, each
Bending 12 can block the side magnet 4 at its corresponding position, or part when annular (while magnet for) in magnet 4.
Preferably, the magnetic conductive board 5 when that can be correspondingly arranged on magnet 4, is correspondingly arranged on center magnetic conduction on centring magnet 2
Plate 3, to correct the magnetic line of force that side magnet 4 is sent.
A kind of another embodiment according to the present utility model, there is provided loudspeaker monomer.As shown in figure 3, the loudspeaker
Monomer includes above-mentioned magnetic circuit system, vibrational system and shell 10.Shell 10 is used to house fixed vibrational system and magnetic circuit system.
Since the magnetic circuit system can effectively reduce the generation of side magnet and centring magnet the leakage field phenomenon on side.Thus, can
To ensure the superperformance of loudspeaker monomer.
Further, vibrational system includes voice coil loudspeaker voice coil 6, vibrating diaphragm 7, wherein, voice coil loudspeaker voice coil 6 is incorporated on vibrating diaphragm 7, and vibrating diaphragm 7 is fixed on
The upper end of shell 10.Voice coil loudspeaker voice coil 6 is stretched into the magnetic gap of magnetic circuit system formation, so that, voice coil loudspeaker voice coil 6 does reciprocating cutting magnetic in magnetic gap
The line of force is moved, and drives vibrating diaphragm 7 to vibrate, so as to instigate air sounding.
Preferably, top dome portion 8 is located at the center of vibrating diaphragm 7, as the reinforcing member of vibrating diaphragm 7, adjusts acoustical behavior.Generally
In the case of, it is desirable to the rigidity in top dome portion 8 is big and light-weight.
As shown in Fig. 3, Fig. 6 and Fig. 7, the loudspeaker monomer of the utility model further includes front housing 9.Front housing 9 is installed on shell
On 10, the accommodation space that can accommodate vibrational system and magnetic circuit system is formd between front housing 9 and shell 10, vibrating diaphragm 7 is located at front housing 9
Between shell 10.Preferably, conductive magnetic yoke 1 is fixed on 10 bottom of shell, directly as the shell bottom of shell 10, in order to outwards dissipate
Hair is by vibrating triggered heat.
Although some specific embodiments of the utility model are described in detail by example, this area
It is to be understood by the skilled artisans that above example merely to illustrate, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example
Modify.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of magnetic circuit system, it is characterised in that including conductive magnetic yoke (1) and centring magnet (2)；
The conductive magnetic yoke (1) includes substrate (11) and the bending part (12) being connected with the substrate (11)；The centring magnet
(2) middle part of the substrate (11) is arranged on, side magnet (4) is provided with the substrate edges in the outside of the centring magnet (2)；
The corresponding side magnet (4) of the bending part (12) is set, and direction is equipped with the centring magnet (2) and the side magnet
(4) side bending, is blocked in the outside of the side magnet (4).
2. magnetic circuit system according to claim 1, it is characterised in that the bending part (12) is perpendicular to the substrate (11)
Set.
3. magnetic circuit system according to claim 2, it is characterised in that the top surface of the bending part (12) is no more than the side
The top surface of magnet (4).
4. magnetic circuit system according to claim 1, it is characterised in that the bending part (12) is handled by blank pressing technology,
Its thickness is less than the substrate (11) thickness.
5. magnetic circuit system according to claim 1, it is characterised in that the side magnet (4) includes two pieces, is oppositely disposed
In the both sides of the centring magnet (2), the outside of each side magnet (4) is blocked by the corresponding bending part (12).
6. magnetic circuit system according to claim 5, it is characterised in that the substrate (11) is not provided with the another of side magnet (4)
Outer two sides are equipped with side wall (14), and the side wall (14) forms a part for magnetic gap with the centring magnet (2).
7. magnetic circuit system according to claim 1, it is characterised in that the side magnet (4) includes four pieces, in described
Heart magnet (2) is set, and the bending part (12) is arranged on four sides of the substrate (11).
8. the magnetic circuit system according to any one of claim 1 to 7, it is characterised in that corresponding on the side magnet (4)
Side magnetic conductive board (5) is provided with, center magnetic conductive board (3) is correspondingly arranged on the centring magnet (2).
9. a kind of loudspeaker monomer, it is characterised in that including the magnetic circuit system any one of claim 1 to 5, further include
Shell (10) and vibrational system, the shell (10) are used to house the fixed vibrational system and magnetic circuit system, the vibration system
The voice coil loudspeaker voice coil (6) that system includes vibrating diaphragm (7) and is incorporated on vibrating diaphragm (7), the vibrating diaphragm (7) are fixed on the upper end of the shell (10),
The voice coil loudspeaker voice coil (6) is stretched into the magnetic gap that the magnetic circuit system is formed.
10. loudspeaker monomer according to claim 9, it is characterised in that further include front housing (9), front housing (9) installation
On the shell (10), the vibrating diaphragm (7) is between the front housing (9) and the shell (10), the front housing (9) and institute
State and form the accommodation space that can accommodate the vibrational system and magnetic circuit system between shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072770.2U CN207304905U (en) | 2017-08-24 | 2017-08-24 | Magnetic circuit system and loudspeaker monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072770.2U CN207304905U (en) | 2017-08-24 | 2017-08-24 | Magnetic circuit system and loudspeaker monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207304905U true CN207304905U (en) | 2018-05-01 |
Family
ID=62438792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721072770.2U Active CN207304905U (en) | 2017-08-24 | 2017-08-24 | Magnetic circuit system and loudspeaker monomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207304905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681029A (en) * | 2018-08-03 | 2018-10-19 | 上海比路电子股份有限公司 | Lens drive motor, camera and mobile terminal apparatus |
| CN117098050A (en) * | 2023-10-19 | 2023-11-21 | 瑞声光电科技(常州)有限公司 | Sound producing device and handwriting pen |
-
2017
- 2017-08-24 CN CN201721072770.2U patent/CN207304905U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681029A (en) * | 2018-08-03 | 2018-10-19 | 上海比路电子股份有限公司 | Lens drive motor, camera and mobile terminal apparatus |
| CN117098050A (en) * | 2023-10-19 | 2023-11-21 | 瑞声光电科技(常州)有限公司 | Sound producing device and handwriting pen |
| CN117098050B (en) * | 2023-10-19 | 2024-02-20 | 瑞声光电科技(常州)有限公司 | Sound producing device and handwriting pen |
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| GR01 | Patent grant |