CN208821061U - Sounding device mould group - Google Patents
Sounding device mould group Download PDFInfo
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- CN208821061U CN208821061U CN201821767785.5U CN201821767785U CN208821061U CN 208821061 U CN208821061 U CN 208821061U CN 201821767785 U CN201821767785 U CN 201821767785U CN 208821061 U CN208821061 U CN 208821061U
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- sensing element
- shielding part
- module casing
- mould group
- sounding device
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Abstract
The utility model discloses a kind of sounding device mould groups.The sounding device mould group includes: module casing；Sound-generating element, the sound-generating element are arranged in the module casing；Sensing element, the sensing element are fixed in the module casing, and there are predetermined gaps between the roof inner surface of the top of the sensing element and the module casing；Shielding part, the shielding part are set at the predetermined gap.The utility model has technical effect that, can reduce interference of the magnetic field to sound-generating element of sensing element.
Description
Technical field
The utility model belongs to acoustics equipment technical field, and in particular, to a kind of sounding device mould group.
Background technique
In recent years, consumer electronics product is rapidly developed, and the electronic equipments such as smart phone, VR equipment are consumed
The approval of person, is widely used.Those skilled in the art are also corresponding to relevant auxiliary products such as earphone etc. to carry out
It improves, to meet the performance requirement of electronic product, meets consumer to the needs of properties of product.
Sounding device is electroacoustic transduction component important in consumer electronics product, as loudspeaker, earpiece, earphone etc.
It is widely used.The sensing element for improving sound quality, the detecting means are integrated on existing sounding device product
Part usually has magnetic part, its own can generate magnetic field.When senser element, sounding component are assemblied in encapsulating housing, usually
There are certain intervals between top cover.The magnetic field that sensing element generates is easy the area where reaching sounding component from the gap location
Domain, sounding component will receive the interference of senser element, so that its acoustical behavior be made to be adversely affected.Moreover, because sensor
The magnetic field of part is leaked out from above-mentioned gap location, and the performance for being used to improve sound quality is also declined.The magnetic flux leakage meeting of sensing element
The whole acoustical behavior of sounding device is caused to be affected, it is necessary to improve to this.
Utility model content
One purpose of the utility model is to provide a kind of new solution of sounding device mould group.
It is according to the present utility model in a first aspect, providing a kind of sounding device mould group, comprising:
Module casing；
Sound-generating element, the sound-generating element are arranged in the module casing；
Sensing element, the sensing element are fixed in the module casing, the top of the sensing element and institute
State between the roof inner surface of module casing that there are predetermined gaps；
Shielding part, the shielding part are set at the predetermined gap.
Optionally, formed fluted on the roof inner surface of the module casing, the shielding part is in the groove.
Optionally, the module casing forms the opening being in communication with the outside, institute in the position for corresponding to the sensing element
Stating shielding part is shielding gasket, and the through-hole at the shielding gasket center is corresponding with the aperture position.
Optionally, the sensing element is mini microphone.
Optionally, the shielding part is adhesively fixed on the sensing element；
Alternatively, the shielding part is adhesively fixed on the roof inner surface of the module casing.
Optionally, the shielding part is polyimides shielding part, acrylic acid shielding part, polyethylene shielding part or ferro-magnetic shield
Part.
Optionally, the width range of the predetermined gap is 50-100 microns, and the thickness of the shielding part is less than or equal to
The width of the predetermined gap.
Optionally, the edge of the shielding part protrudes preset distance from the top edge of the sensing element to the periphery.
Optionally, shielded layer is surrounded on the side wall of the sensing element；
Alternatively, being formed with the second receiving area for accommodating the sensing element on the module casing, described second holds
Shielded layer is formed on the side wall of Na Qu.
Optionally, the module casing includes lower housing part, middle shell portion and upper cover, and the sound-generating element and sensing element are arranged
In the lower housing part, side wall is formed in the middle shell portion, the inner space of the module casing is divided by the side wall
One receiving area and the second receiving area, the middle shell portion are fastened in the lower housing part, and the sound-generating element is located at described first and holds
It receives in area, the sensing element is located in second receiving area, and the upper cover lid is located in the middle shell portion, the detecting means
The top of part corresponds to the upper cover.
According to one embodiment of the disclosure, the leakage field that can be effectively improved the gap between sensing element and upper housing part is asked
Topic.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiments of the present invention, and
And together with its explanation for explaining the principles of the present invention.
Fig. 1 is the fragmentary side cross-sectional view of sounding device mould group provided by the utility model；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the explosive view of sounding device mould group provided by the utility model；
Fig. 4 is the axonometric drawing of sounding device mould group provided by the utility model.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates 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.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The utility model provides a kind of improved sounding device mould group, including module casing, sound-generating element, sensing
Component and shielding part.As shown in Figure 1-3, the module casing 1 is for carrying the sound-generating element 2, sensing element 3 and screen
Shield 4.The sound-generating element 2 is arranged in the module casing 1, is used to voice signal being converted into sound, is sounding dress
Set main sound-generating element 2 in mould group.It could be formed with speak corresponding with the position of sound-generating element 2 on the module casing 1
Hole, the acoustic aperture out are spread out of for the sound that sound-generating element 2 generates.
The sensing element 3 is also disposed in the module casing 1, and sensing element 3 and the sound-generating element 2 are in mould group
Different position in shell 1.The sensing element 3 is used to respond the characteristics of environment locating for sounding device mould group, into
And signal is fed back into the control chip in sounding device mould group or in electronic equipment, control chip can be based on the feedback signal
The voice signal for being transferred to sound-generating element is adjusted, so that the voice signal that sound-generating element generates has better audio.
The utility model does not limit the type of the sensing element, can be carried out according to the demand of actual product
Design.For example, the sensing element is mini microphone.Mini microphone can collect extraneous noise, and then pass through control
The sound that chip enables sound-generating element to generate offsets a part of noise, to achieve the effect that active noise reduction.In addition to this, described
Sensing element can also be pressure sensor, vibrating sensor etc..
When the sensing element 3 is assemblied in module casing 1, stayed between top and the roof inner surface of module casing 1
There is predetermined gap 30.That is, between the top of sensing element 3 and the roof inner surface of module casing 1, there are spacing.It is pre- in design
Above-mentioned predetermined gap 30 is stayed, can be avoided after module casing 1 fastens and directly bear against on sensing element 3, and then prevent sensing element 3
It is squeezed.
The shielding part 4 is then arranged at the predetermined gap 30, load the sensing element 3 top and the mould
Between the roof inner surface of group shell 1.The shielding part 4, which uses, has the characteristics that limiting magnetic field or non-magnetic material is made,
To playing the role of armoured magnetic field at the predetermined gap 30, weakens or the magnetic field that avoids sensing element 3 from generating is from described
It is leaked out in predetermined gap 30.
The utility model does not limit material used by shielding part, can select to have according to actual performance demand
There is different degrees of magnetic field shielding, the shielding part is made in the material of restriction effect.Optionally, the shielding part is sub- using polyamides
Amine material, acrylic acid, polyethylene or ferromagnetic material are made, to achieve the effect that limit magnetic field diffusion.
Sounding device mould group provided by the utility model can guarantee sensing element not by shell squeeze in the case where,
Sensing element leakage field is effectively avoided by shielding part.In the shielding part using the material in the magnetic field that can concentrate sensing element
When, additionally it is possible to improve sensing element performance.By the shielding part, effectively prevents sensing element and sound-generating element is caused to do
It disturbs, guarantees that sound-generating element can play original vibration performance.
Optionally, described as shown in Fig. 2, being formed fluted on the roof inner surface of the module casing 1, the groove can
To be recessed upwards a distance from roof inner surface, the roof of module casing 1 is thinned in the segment thickness for forming groove.It is described recessed
Slot is for positioning, fixing the shielding part 4.Position where the groove is corresponding with the position of the sensing element 3.Pass through
Groove is formed on the roof inner surface of the module casing 1, is pushed up after capable of more directly, effectively avoiding the assembly of module casing 1
Wall inner surface is directly born against on the sensing element 3.Moreover, being more convenient for using the structure of the groove is arranged the shielding part 4,
Prevent 4 position inaccurate of shielding part.Shape of the shape of the shielding part 4 preferably with the groove matches, and shielding part 4 is just
In the groove, as shown in Figure 2.Optionally, if the width of the predetermined gap 30 is greater than the depth of the groove,
The thickness of the shielding part 4 can also be greater than the depth of the groove, so that shielding part 4 can occupy the predetermined gap
In more spaces, improve the effect of armoured magnetic field.
Optionally, as shown in Figure 3,4, the module casing 1 is formed with and the external world in the position of the correspondence sensing element 3
The opening 131 of connection, so that the sensing element 3 can be in communication with the outside.The shielding part 4 is then annular in shape, such as shielding part 4
Center for shielding gasket, shielding gasket has through-hole.Size, size, the shape of shape and the opening 131 of the through-hole
Match, the through-hole is corresponding with 131 positions of opening.The shielding gasket loads the sensing element and module casing is being open
Between the roof inner surface of surrounding.By the way that opening is arranged on the module casing, it is more advantageous to sensing element and external environment
Connection, and then the characteristics of detection external environment.For example, the sensing element is mini microphone, the opening is used as miniature wheat
The sound mouth of gram wind, for receiving sound from the external world.
Mode at the predetermined gap is fixed on for the shielding part, the utility model provides following optional reality
Apply mode.Optionally, the shielding part can be adhesively fixed on the sensing element in such a way that gum is bonded.It is filling
When with sounding device mould group, first shielding part is bonded on sensing element, is fixed on the mould group together with sensing element later
In shell.
Optionally, the shielding part can also be adhesively fixed on the top of the module casing by way of gum or gluing
On wall inner surface, the position of shielding part bonding is corresponding with the sensing element.After module casing assembly, fastening, shielding part is just
It is located at the sensing element well.Preferably, this embodiment and the roof inner surface setting of above-mentioned module casing are reeded
Embodiment combination is implemented, and the shielding part is directly adhesively fixed in the groove, to improve the fixation of shielding part, determine
Position reliability.
In addition to that can also use and be moulded in module casing, or pass through locating slot by the way of being adhesively fixed
The shielding part is arranged in the fixed mode of equal position limiting structures limit.
In the sounding device mould group of the utility model design, the predetermined gap can occupy certain space, if predetermined
The width in gap is excessive, it will cause there is excessive free space in module casing, is unfavorable for the miniaturization of sounding device mould group
Design.And if the width of predetermined gap is too small, since product processing certainly exists mismachining tolerance and rigging error, still having can
Module casing 1 can be caused to directly bear against on the sensing element 3, and then sensing element 3 is impacted and is even damaged.It is preferred that
Ground, the width range of the predetermined gap 30 are 50-100 microns.The predetermined gap is in preferred width provided by the utility model
It spends in range, can either guarantee that module casing will not be directly born against on sensing element, and can be avoided predetermined gap and occupy excessively
Space.Further, the thickness of the shielding part is less than or equal to the width of the predetermined gap, to reduce shielding part and sensing
A possibility that mutual extrusion occurs between component and module casing.Preferably, the thickness of the shielding part is slightly less than described pre-
The width of fixed gap.In this embodiment, a possibility that being squeezed between shielding part and sensing element and module casing
It is lower, and shielding part can also play good shielding action in the predetermined gap, effectively prevent the magnetic of sensing element
Field interference sound-generating element.
As shown in Figure 2, it is preferable that the outer edge of the shielding part 4 protrudes outward predetermined from the top of the sensing element 3
Distance.For example, the top of the sensing element 3 is rounded, also at circle, the diameter of shielding part 4 is greater than described the shielding part 4
The top diameter of sensing element 3.By changing the size of shielding part, the edge of the shielding part is made to protrude from the sensing element
Edge.This design can more effectively improve the shield effectiveness of shielding part, and the shielding part covers at the top of sensing element
The range of Gai Geng great can more effectively reduce the magnetic field of sensing element to the degree of external diffusion.It is in from biography by shielding part design
The region also contributed to by the magnetic field concentration of sensing element where it is protruded outward at the top of sensor, enhances sensing element itself
The application efficiency in the magnetic field of generation.
Preferably, shielded layer is additionally provided on the side wall of the sensing element, the shielded layer is for preventing sensing element
The magnetic field of generation is to side diffusion.Alternatively, being formed in the module casing dedicated for holding the second of sensing element the appearance
Na Qu.Shielded layer is formed on the side wall of second receiving area.The shielded layer is for preventing the magnetic field of sensing element to side
Face diffusion, shielded layer and shielding part are incorporated in the technical solution of the utility model, can be around sensing element to magnetic field
The limitation for carrying out all directions, avoids the magnetic interference sound-generating element of sensing element.Particularly, by the edge of above-mentioned shielding part from
The technological means that the top edge of sensing element is stretched out is used in combination with the technological means that shielded layer is arranged, can more effectively by
Magnetic field is limited in the region where sensing element itself, and magnetic field is avoided to leak out from the top side wall of sensing element.
Optionally, as shown in Figure 1,3, the module casing 1 may include lower housing part 11, middle shell portion 12 and upper cover 13 3
Part.The middle shell portion 12 is fixed in the lower housing part 11, and side wall 121, middle shell portion are formed in the middle shell portion 12
12 are fastened in lower housing part 11, make side wall 121 that the inner space of module casing 1 has been divided into the first receiving area and second and hold
Receive area 122.The sound-generating element 2 can be fixed in the lower housing part 11, and sound-generating element 2 is located at first receiving area
It is interior.The sensing element 3 can also be fixed in the lower housing part 11, be located in second receiving area 122.Pass through
The side wall 121 in the middle shell portion 12 can demarcate sound-generating element 2 with sensing element 3 in mould group, and it is mutually dry to reduce the two
A possibility that disturbing.The two sides up and down in the middle shell portion 12 are hollow outs, and downside is sealed by the lower housing part 11, the upper cover 13
It can then cover and be located in the middle shell portion 12, the upside in middle shell portion 12 is sealed.The top of the sensing element 3 is the upper cover
13, the predetermined gap 30 is formed between the sensing element 3 and the upper cover 13.The side of the upper cover 13 and middle shell portion 12
It has been enclosed above-mentioned second receiving area 122 jointly for carrying the part of sensing element 3 on wall 121 and lower housing part 11.It will
The middle shell portion is arranged to seperated form with upper cover, is more advantageous to and assembles to module casing and shielding part, reduces mould
Group shell and shielding part are directly extruded in the risk on sensing element.
In embodiment as shown in Figure 2,3, the upper cover 13 constitutes the roof of the module casing 1, upper cover 13
The groove for accommodating shielding part 4 is formed on inner surface.The upper cover 13 covers the top for being located at the side wall 121 in the middle shell portion 12
On face, the top of the sensing element 3 is flushed with the top surface of side wall 121, or the top surface of slightly below side wall 121.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that example above merely to be illustrated, 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 where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of sounding device mould group characterized by comprising
Module casing；
Sound-generating element, the sound-generating element are arranged in the module casing；
Sensing element, the sensing element are fixed in the module casing, the top of the sensing element and the mould
There are predetermined gaps between the roof inner surface of group shell；
Shielding part, the shielding part are set at the predetermined gap.
2. sounding device mould group according to claim 1, which is characterized in that shape on the roof inner surface of the module casing
At fluted, the shielding part is in the groove.
3. sounding device mould group according to claim 1, which is characterized in that the module casing is corresponding to the sensing
The position of component forms the opening being in communication with the outside, and the shielding part is shielding gasket, the through-hole at the shielding gasket center with
The aperture position is corresponding.
4. sounding device mould group according to claim 3, which is characterized in that the sensing element is mini microphone.
5. sounding device mould group according to claim 1, which is characterized in that the shielding part is adhesively fixed on the detecting means
On part；
Alternatively, the shielding part is adhesively fixed on the roof inner surface of the module casing.
6. sounding device mould group according to claim 1-5, which is characterized in that the shielding part is polyimides
Shielding part, acrylic acid shielding part, polyethylene shielding part or ferro-magnetic shield part.
7. sounding device mould group according to claim 1-5, which is characterized in that the width model of the predetermined gap
Enclosing is 50-100 microns, and the thickness of the shielding part is less than or equal to the width of the predetermined gap.
8. sounding device mould group according to claim 1-5, which is characterized in that the edge of the shielding part is from institute
The top edge for stating sensing element protrudes preset distance to the periphery.
9. sounding device mould group described in -5 any one according to claim 1, which is characterized in that the side wall of the sensing element
On be surrounded with shielded layer；
Alternatively, the second receiving area for accommodating the sensing element is formed on the module casing, second receiving area
Side wall on be formed with shielded layer.
10. sounding device mould group according to claim 1, which is characterized in that the module casing includes lower housing part, middle shell
Portion and upper cover, the sound-generating element and sensing element are arranged in the lower housing part, are formed with side wall in the middle shell portion, described
The inner space of the module casing is divided into the first receiving area and the second receiving area by side wall, the middle shell portion be fastened on it is described under
In shell portion, the sound-generating element is located in first receiving area, and the sensing element is located in second receiving area, described
Upper cover lid is located in the middle shell portion, and the top of the sensing element corresponds to the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767785.5U CN208821061U (en) | 2018-10-29 | 2018-10-29 | Sounding device mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767785.5U CN208821061U (en) | 2018-10-29 | 2018-10-29 | Sounding device mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208821061U true CN208821061U (en) | 2019-05-03 |
Family
ID=66280394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821767785.5U Active CN208821061U (en) | 2018-10-29 | 2018-10-29 | Sounding device mould group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208821061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117528368A (en) * | 2024-01-08 | 2024-02-06 | 苏州敏芯微电子技术股份有限公司 | MEMS microphone structure |
-
2018
- 2018-10-29 CN CN201821767785.5U patent/CN208821061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117528368A (en) * | 2024-01-08 | 2024-02-06 | 苏州敏芯微电子技术股份有限公司 | MEMS microphone structure |
| CN117528368B (en) * | 2024-01-08 | 2024-03-26 | 苏州敏芯微电子技术股份有限公司 | MEMS microphone structure |
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