CN207124755U - A kind of sound-producing device - Google Patents
A kind of sound-producing device Download PDFInfo
- Publication number
- CN207124755U CN207124755U CN201720948480.3U CN201720948480U CN207124755U CN 207124755 U CN207124755 U CN 207124755U CN 201720948480 U CN201720948480 U CN 201720948480U CN 207124755 U CN207124755 U CN 207124755U
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- China
- Prior art keywords
- sidepiece
- sound
- producing device
- housing
- yoke
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Abstract
The utility model discloses a kind of sound-producing device.The sound-producing device is integrally rectangular, and the sound-producing device includes housing and the vibrational system and magnetic circuit system that are installed on the housing；The vibrational system includes vibrating diaphragm and voice coil loudspeaker voice coil, and the magnetic circuit system includes yoke and is fixed in the yoke and spaced centring magnet and side magnet；The corner of the magnetic circuit system is communicated with the passage of speaking of the sound-producing device inside and outside, the yoke include bottom and from the corner of the bottom to the vibrating diaphragm direction it is prominents be used to block described in speak the sidepiece of passage, rear acoustic aperture is provided with the sidepiece, the damping screen for covering the rear acoustic aperture is provided with the sidepiece.A problem to be solved in the utility model is thicker for the housing wall of existing sound-producing device, causes inner space small.
Description
Technical field
The utility model electroacoustic techniques field, more specifically, the utility model is related to a kind of sound-producing device.
Background technology
At present, the sound-producing device such as loudspeaker and receiver includes housing, vibrational system and magnetic circuit system.Magnetic circuit system and shake
Dynamic system is individually fixed on housing.Vibrational system includes the vibrating diaphragm and voice coil loudspeaker voice coil being combined together.Magnetic circuit system includes yoke, magnetic
Iron etc..
Rear acoustic aperture is provided with the housing of sound-producing device.In order to prevent rear acoustic aperture from entering impurity or in order to adjust acoustical behavior,
The damping screen of acoustic aperture after covering is provided with housing.Housing causes its intensity relatively low by injection molding.
In order to increase the intensity of housing, it certainly will need to increase the wall thickness of housing, cause the inner space of sound-producing device smaller.
It is acoustic aperture after being set on housing in practice, the damping screen of acoustic aperture after covering is set on housing, the wall thickness of housing is at least
More than 0.5 millimeter.
Especially, in five magnetic circuit sound-producing devices, centring magnet is provided with a side surface of yoke and positioned at center
Magnet the week side of boss and the side magnet that gap is separated between centring magnet.Due to side magnet quantity set it is more, space-consuming compared with
Greatly, rear acoustic aperture position more difficult setting less and less using space is caused.
Therefore, it is necessary to existing sound-producing device is improved.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of sound-producing device.
According to one side of the present utility model, there is provided a kind of sound-producing device.The sound-producing device is integrally rectangular, the hair
Acoustic device includes housing and the vibrational system and magnetic circuit system that are installed on the housing；The vibrational system include vibrating diaphragm and
Voice coil loudspeaker voice coil, the magnetic circuit system include yoke and are fixed in the yoke and spaced centring magnet and side magnet；Institute
The corner for stating magnetic circuit system is communicated with the passage of speaking of the sound-producing device inside and outside, and the yoke includes bottom and described in
The corner of the bottom sidepiece that is used to block the speak passage prominent to the vibrating diaphragm direction, is provided with rear sound on the sidepiece
Hole, the damping screen for covering the rear acoustic aperture is provided with the sidepiece.
Alternatively, the sidepiece is rectangular, and other three sides in addition to the one side being connected with the bottom of the sidepiece are equal
With the housing Butt sealing.
Alternatively, the sidepiece and the bottom one bending forming.
Alternatively, the thickness of the sidepiece is less than the thickness of the bottom.
Alternatively, the thick bottom of the sidepiece is less than 0.3 millimeter.
Alternatively, the quantity of the side magnet is four, and four side magnet are respectively along four straight flanges of the bottom
It is extended, the sidepiece is between the two neighboring side magnet.
Alternatively, the quantity of the side magnet is two, and two side magnet are relative along two of the bottom respectively
Straight flange is extended.
Alternatively, the quantity of the sidepiece is two, and two sidepieces are respectively from two corners of the bottom to institute
State vibrating diaphragm direction protrusion.
Alternatively, the quantity of the sidepiece is four, and four sidepieces are respectively from four corners of the bottom to institute
State vibrating diaphragm direction protrusion.
Alternatively, the housing includes roof and prominent from the roof to the bottom direction and be located at institute respectively
The first side wall of sidepiece both sides is stated, the sidepiece and the first side wall positioning of its both sides are assembled together.
Inventor of the present utility model is had found, rear acoustic aperture is provided with the housing of sound-producing device.Covering is provided with housing
The damping screen of acoustic aperture afterwards.Housing causes its intensity relatively low by injection molding.In order to increase the intensity of housing, certainly will need
Increase the wall thickness of housing, cause the inner space of sound-producing device smaller.Therefore, the utility model to be realized technical assignment or
Person's technical problem to be solved be it is that those skilled in the art never expect or it is not expected that, therefore the utility model is
A kind of new technical scheme.
In sound-producing device provided by the utility model, yoke is made up of magnetic conductive metal material, and its intensity is higher.By rear sound
Hole is arranged on the sidepiece of yoke, is not required to the thickness of extra increase sidepiece.
Acoustic aperture after can just being set on relatively thin sidepiece, damping screen are arranged on sidepiece, are saved inside sound-producing device
Space, it is ensured that the reliability of sound-producing device.
It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model
Feature and its advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiment of the present utility model, and
And it is used to explain principle of the present utility model together with its explanation.
Fig. 1 is the explosive view of the sound-producing device provided in a kind of embodiment of the utility model；
Fig. 2 is the assembling figure of the sound-producing device provided in a kind of embodiment of the utility model；
Fig. 3 is the structural representation of the yoke provided in a kind of embodiment of the utility model；
Fig. 4 is the explosive view of the sound-producing device provided in a kind of embodiment of the utility model.
Wherein, 1：Housing；10：Roof；11：The first side wall；12：Second sidewall；2：Yoke；20：Bottom；21：Sidepiece；
210：Acoustic aperture afterwards；3：Centring magnet；4：Side magnet；5：Damping screen.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another
Illustrate outside, the part 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, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus 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 accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The utility model provides a kind of sound-producing device, and referring to figs. 1 to Fig. 4, the sound-producing device includes supporting construction, vibration
System and magnetic circuit system.The sound-producing device is integrally rectangular.The supporting construction includes housing 1.The magnetic circuit system and shake
Dynamic system is respectively arranged on the housing 1.The vibrational system includes the voice coil loudspeaker voice coil and vibrating diaphragm being combined together.The vibrating diaphragm peace
Loaded on the housing 1.The voice coil loudspeaker voice coil is incorporated into a side surface of the vibrating diaphragm.The voice coil loudspeaker voice coil can drive the diaphragm oscillations.
The magnetic circuit system includes yoke 2, centring magnet 3 and side magnet 4.The yoke 2 is installed on the housing 1.
The centring magnet 3 and side magnet 4 are both secured on a side surface of the yoke 2.The side magnet 4 surrounds the center magnetic
Iron 3 is arranged, and is arranged at intervals between the side magnet 4 and the centring magnet 3.Between the centring magnet 3 and the side magnet 4
Formed with magnetic gap.The Voice coil portions are located in the magnetic gap.For example, in order to correct the magnetic line of force, in the centring magnet
3rd, magnetic conductive board can be provided with side magnet 4.
The magnetic circuit system is rectangular.The inside and outside portion of the sound-producing device is communicated with the corner of the magnetic circuit system
Speak passage.The ft connection that the inside of the sound-producing device passes through the speak passage and the sound-producing device.
The yoke 2 includes bottom 20 and sidepiece 21.The bottom 10 is rectangle.The bottom 20 is relative with the vibrating diaphragm
Set.The sidepiece 21 is prominent from the corner of the bottom 20 to the vibrating diaphragm direction.For example, the sidepiece 21 can be with the bottom
Portion 20 is vertically arranged, and the sidepiece 21 is from the corner of the bottom 20 to prominent perpendicular to the direction of the bottom 20.
Positioned at the channel position of speaking, the sidepiece 21 is used to block the passage of speaking the sidepiece 21.Described
Sidepiece 21 is provided with rear acoustic aperture 210.The passage of speaking by acoustic aperture 210 after described and the ft connection of the sound-producing device,
The consistent of vibrating diaphragm both sides space atmospheric pressure value is ensure that, avoids producing vibration of membrane of shaking described in draught head influence.
The damping screen 5 for covering the rear acoustic aperture 210 is provided with the sidepiece 21.It can be prevented by the damping screen 5
The impurity such as dust enter the inside of the sound-producing device, can adjust the acoustical behavior of the sound-producing device.
Different from perforate on plastic casing, it is contemplated that plastic casing intensity is relatively low, the reliability of product, and housing wall needs
It is configured thicker.
The yoke 2 is made up of magnetic conductive metal material, and the intensity of the yoke 2 is higher.Acoustic aperture 210 is arranged at after will be described
When on the sidepiece 21 of the yoke 2, it is not required to additionally increase the thickness of the sidepiece 21.It can also be set on relatively thin sidepiece 21
Acoustic aperture 210 after described, the damping screen 5 are arranged on the sidepiece 21, save the space inside the sound-producing device, are ensured
The reliability of product.
The yoke 2 is made up of magnetic conductive metal material, and the centring magnet 3 and side magnet 4 are fixed and be carried on the bottom
On 20.Preferably, the thickness of the sidepiece 21 is less than the thickness of the bottom 20.The larger setting of thickness of the bottom 20.
The 21 relatively thin setting of sidepiece, saves the space inside the sound-producing device.Preferably, the thickness of the sidepiece 21
Degree can be less than 0.3 millimeter.Further, the thickness of the sidepiece 21 could be arranged to 0.2 millimeter, can save the sounding
Space inside device, while can guarantee that the reliability of product.
The sidepiece 21 is prominent from the corner of the bottom 20 to the direction of the vibrating diaphragm.The sidepiece 21 is relative to described
Bottom 2 is bent.Preferably, the sidepiece 21 and the 20 integral bending forming of bottom.For example, the yoke 2 can be led at one piece
Punch forming on magnetic metalwork, so as to be molded the bottom 20 and sidepiece 21.
The sidepiece 21 is prominent from the corner of the bottom 20 to the direction of the vibrating diaphragm, and it is logical to speak described in blocking
Road.The quantity of the sidepiece 21 is corresponding with the quantity of the passage of speaking.
Alternatively, with reference to figure 1, Fig. 2, the quantity of the passage of speaking is two.Passage of being spoken described in two is set respectively
In two corners of the magnetic circuit system.Two other corner sealing of the magnetic circuit system is set.For example, spoken described in two
Passage can be respectively arranged at two adjacent corners or two diagonal positions of the magnetic circuit system.Accordingly, the sidepiece
21 quantity is two.Two sidepieces 21 are prominent from two corners of the bottom 20 to the vibrating diaphragm direction respectively.
Alternatively, with reference to figure 4, the quantity of the passage of speaking is four.Passage of being spoken described in four is respectively arranged at institute
State four corners of magnetic circuit system.Accordingly, the quantity of the sidepiece 21 is four.Four sidepieces 21 are respectively from the bottom
Four corners in portion 20 are prominent to the vibrating diaphragm direction.
The side magnet 4 is arranged at intervals around the centring magnet 3 and between the centring magnet 3.The side magnetic
The quantity of iron 4 can be two or four.
In one example, with reference to figure 1, Fig. 4, the quantity of the side magnet 4 is four.Four side magnet 4 edge respectively
Four straight flanges of the bottom 20 are extended.The centring magnet 3 is located at the centre position of the bottom 20.
In the embodiment, with reference to figure 1, the quantity of the passage of speaking can have two.Passage of being spoken described in two is distinguished
It is arranged at two corners of the magnetic circuit system.Two other corner sealing of the magnetic circuit system is set.The sidepiece 21
Quantity is two, to block passage of being spoken described in two respectively.
In the embodiment, with reference to figure 4, the quantity of the passage of speaking can have four.Passage of being spoken described in four is distinguished
It is arranged at four corners of the magnetic circuit system.The quantity of the sidepiece 21 be four, with block respectively spoken described in four it is logical
Road.
It should be noted that the side magnet 4 does not extend to the both ends of the straight flange of the bottom 20, with the magnetic circuit system
The corner of system spoken passage described in setting.
In another example, with reference to figure 2, the quantity of the side magnet 4 is two.Two side magnet 4 are respectively along institute
Two opposite straight edges for stating bottom 20 are extended.The centring magnet 3 is between two side magnet 4.
In the embodiment, with reference to figure 2, the quantity of the passage of speaking can be two.Passage of being spoken described in two is distinguished
It is arranged at two corners of the magnetic circuit system.The quantity of the sidepiece 21 be two, with block respectively spoken described in two it is logical
Road.
In addition, the quantity of the passage of speaking can also be four.Passage of being spoken described in four is respectively arranged at the magnetic
Four corners of road system.The quantity of the sidepiece 21 is four, to block passage of being spoken described in four respectively.
Acoustic aperture 210 is arranged on the sidepiece 21 after described, the concrete shape of the sidepiece 21 can be rectangle, it is trapezoidal or
Person's other shapes.In one example, with reference to figure 2, the sidepiece 21 is rectangular.Removing for the sidepiece 21 is connected with the bottom 20
One side outside other three sides with the Butt sealing of housing 1.One side of the sidepiece 21 is connected on the bottom 20, institute
State other three sides of sidepiece 21 and the Butt sealing of housing 1.
The yoke 2 is installed on the housing 1.Preferably, with reference to figure 2, the housing 1 can include roof 10 and
The first side wall 11 that is outstanding from the roof 10 and being located at the both sides of sidepiece 21 respectively.The positioning of sidepiece 21 assembling
Between the first side wall 11 of its both sides.
The roof 10 is rectangle.The roof 10 is oppositely arranged with the bottom 20.The first side wall 11 is described in
The corner of roof 10 is prominent to the direction of bottom 20.
It is arranged at intervals respectively between the first side wall 11 of the both sides of sidepiece 21, with the corner of the magnetic circuit system
Formation is spoken passage.
The vibrating diaphragm can be rectangle.The vibrating diaphragm can be installed on the remote direction one of bottom 20 of the roof 10
On side surface.For example, the supporting construction can also include being used for the protecgulum for pressing another side surface of the vibrating diaphragm.
With reference to figure 2, the quantity of the passage of speaking can be two, and passage of being spoken described in two is respectively arranged at the magnetic
Two corners of road system.Two other corner of the magnetic circuit system is not provided with the passage of speaking.The sidepiece 21
Quantity is two.Two sidepieces 21 are located at two corners of the yoke 2 respectively.Two other corner of the yoke 2
It is not provided with the sidepiece 21.Specifically, the yoke 2 can include two second sidewalls 12.Two second sidewalls 12
It is prominent from two corners for being not provided with the sidepiece 21 of the roof 10 to the direction of bottom 20 respectively.Two described
Two side walls 12 seal two corners of the magnetic circuit system, are formed without the passage of speaking.For example, the second sidewall 12 can
Think folding shape, arc or other shapes, assembled with being positioned with the bottom 20.
Although some specific embodiments of the present utility model are described in detail by example, this area
It is to be understood by the skilled artisans that example above 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)
- It is overall rectangular 1. a kind of sound-producing device, including housing (1) and the vibrational system that is installed on the housing (1) and Magnetic circuit system；The vibrational system includes vibrating diaphragm and voice coil loudspeaker voice coil, and the magnetic circuit system includes yoke (2) and is fixed on the yoke (2) on and spaced centring magnet (3) and side magnet (4)；The corner of the magnetic circuit system is communicated with the sounding dress Put the passage of speaking of inside and outside, it is characterised in thatThe yoke (2) include bottom (20) and from the corner of the bottom (20) to the vibrating diaphragm direction it is prominents for blocking The sidepiece (21) of the passage of speaking, rear acoustic aperture (210) is provided with the sidepiece (21), is provided with and covers on the sidepiece (21) Cover the damping screen (5) of the rear acoustic aperture (210).
- 2. sound-producing device according to claim 1, it is characterised in that the sidepiece (21) is rectangular, the sidepiece (21) Other three sides in addition to the one side being connected with the bottom (20) with the housing (1) Butt sealing.
- 3. sound-producing device according to claim 1, it is characterised in that the sidepiece (21) and the bottom (20) one are curved Foldable type.
- 4. sound-producing device according to claim 1, it is characterised in that the thickness of the sidepiece (21) is less than the bottom (20) thickness.
- 5. the sound-producing device according to claim 1 or 4, it is characterised in that the thick bottom of the sidepiece (21) is less than 0.3 milli Rice.
- 6. sound-producing device according to claim 1, it is characterised in that the quantity of the side magnet (4) is four, four institutes State side magnet (4) to be extended along four straight flanges of the bottom (20) respectively, the sidepiece (21) is positioned at two neighboring described Between side magnet (4).
- 7. sound-producing device according to claim 1, it is characterised in that the quantity of the side magnet (4) is two, two institutes Side magnet (4) is stated to be extended along two opposite straight edges of the bottom (20) respectively.
- 8. according to the sound-producing device described in claim 1,6 or 7, it is characterised in that the quantity of the sidepiece (21) be two, two The individual sidepiece (21) is prominent from two corners of the bottom (20) to the vibrating diaphragm direction respectively.
- 9. according to the sound-producing device described in claim 1,6 or 7, it is characterised in that the quantity of the sidepiece (21) be four, four The individual sidepiece (21) is prominent from four corners of the bottom (20) to the vibrating diaphragm direction respectively.
- 10. sound-producing device according to claim 1, it is characterised in that the housing (1) includes roof (10) and from institute State roof (10) it is prominent to the bottom (20) direction and respectively be located at the sidepiece (21) both sides the first side wall (11), institute State sidepiece (21) and the first side wall (11) positioning of its both sides is assembled together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948480.3U CN207124755U (en) | 2017-07-31 | 2017-07-31 | A kind of sound-producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948480.3U CN207124755U (en) | 2017-07-31 | 2017-07-31 | A kind of sound-producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124755U true CN207124755U (en) | 2018-03-20 |
Family
ID=61612264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720948480.3U Active CN207124755U (en) | 2017-07-31 | 2017-07-31 | A kind of sound-producing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124755U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108668207A (en) * | 2018-04-24 | 2018-10-16 | 歌尔股份有限公司 | A kind of sound-producing device |
| CN111510830A (en) * | 2020-04-16 | 2020-08-07 | 歌尔股份有限公司 | Sound producing device |
| CN112165669A (en) * | 2020-10-22 | 2021-01-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker |
-
2017
- 2017-07-31 CN CN201720948480.3U patent/CN207124755U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108668207A (en) * | 2018-04-24 | 2018-10-16 | 歌尔股份有限公司 | A kind of sound-producing device |
| WO2019205719A1 (en) * | 2018-04-24 | 2019-10-31 | 歌尔股份有限公司 | Sound-producing device |
| CN111510830A (en) * | 2020-04-16 | 2020-08-07 | 歌尔股份有限公司 | Sound producing device |
| US12108232B2 (en) | 2020-04-16 | 2024-10-01 | Goertek Inc. | Sound generating device |
| CN112165669A (en) * | 2020-10-22 | 2021-01-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker |
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