CN208590014U - Mobile terminal and its earphone structure - Google Patents
Mobile terminal and its earphone structure Download PDFInfo
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- CN208590014U CN208590014U CN201821371075.0U CN201821371075U CN208590014U CN 208590014 U CN208590014 U CN 208590014U CN 201821371075 U CN201821371075 U CN 201821371075U CN 208590014 U CN208590014 U CN 208590014U
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Abstract
The utility model provides a kind of earphone structure, comprising: the intracavitary sound cavity wall of preceding sound for being mounted on mobile terminal front housing；Sound cavity wall；It is mounted on the sound chamber bracket of the rear end of the separate front housing of sound cavity wall；The microphone device being connect with sound chamber bracket；Wherein, there is single-chamber channel or multiple lumen access, and the inner wall of single-chamber channel or multiple lumen access is continuous curved surface inside the sound cavity wall；The single-chamber channel of the sound cavity wall or multiple lumen access are the channel of cross section variation, and the cross section of its front end is greater than towards the cross section of the rear end of sound chamber bracket；The junction of the sound chamber bracket and the microphone device seals.The earphone structure of the utility model, good seal performance change the resonance frequency of sound cavity wall, avoid resonating, and reduce audio loss, sound cavity wall is avoided to be collapsed, and achieve the effect that sound amplifies；In addition, also providing a kind of mobile terminal with the earphone structure.
Description
Technical field
The utility model belongs to electronic technology field, is related to a kind of earphone structure and the mobile end with the earphone structure
End.
Background technique
The effect of earpiece is exactly to convert vibration vibration of membrane for audio signal, by sound wave by air transmitted, is sent to use
In the ear of person.The structure type of current headphone is exactly front housing and display screen all boreholes, and the sound of earpiece is directly conducted
Out, stick on Air Filter in the sound passage.
The prior art is typically employed in headphone and makes preceding sound chamber using the aperture of front casing structure part, and dust-proof in front housing patch
Net.It is usually placed side by side since earpiece and camera are closely sized to, preceding sound is had the drawback that using above-mentioned structure type
Chamber channel is easy accumulation dust, non-watertight, and thin iron powder can be adsorbed onto the vibrating diaphragm of earpiece by the aperture of Air Filter, influence to listen
The sounding of cylinder device.In addition, the volume of preceding sound chamber can not increase.When using screen comprehensively, after camera displacement, earpiece is exactly
The bottleneck of screen layout comprehensively.When using Pop-up earpiece, the privacy of call not can guarantee, and stretch out and withdraw pop-up
Earpiece is also required to the time, influences the satisfaction of user experience.
Summary of the invention
The purpose of the utility model is to overcome the problemss of the above-mentioned prior art, propose a kind of earphone structure, sealing
Performance is good, changes the resonance frequency of sound cavity wall, avoids resonating, and reduces audio loss, avoids sound cavity wall from being collapsed, reach sound and put
Big effect；In addition, also providing a kind of mobile terminal with the earphone structure.
In order to realize the above-mentioned purpose of the utility model, on the one hand the utility model provides a kind of earphone structure comprising:
The intracavitary sound cavity wall of preceding sound for being mounted on mobile terminal front housing；Sound cavity wall；It is mounted on the rear end of the separate front housing of sound cavity wall
Sound chamber bracket；The microphone device being connect with sound chamber bracket；Wherein, have single-chamber channel or multi-cavity logical inside the sound cavity wall
Road, and the inner wall of single-chamber channel or multiple lumen access is continuous curved surface；The single-chamber channel of the sound cavity wall or multiple lumen access are cross
The channel of changes of section is greater than the cross section of its front end towards the cross section of the rear end of sound chamber bracket；The sound chamber bracket with
The junction of the microphone device seals.
Wherein, the sound cavity wall is made of flexible material or ebonite material.
Wherein, the sound cavity wall is made of thermoplastic elastomer (TPE) TPU or thermoplastic polyurethane TPE or silica gel.
Alternatively, copolymer A BS system of the sound cavity wall by makrolon material PC and/or acrylonitrile, butadiene, styrene
At.
Wherein, the microphone device is earpiece.
Alternatively, the microphone device includes: the vibrating membrane being mounted on the sound chamber bracket；One end can connect with vibrating membrane
The rigid guide of touching；The voice coil motor of the other end of its oscillator or coil and rigid guide connection.
Alternatively, the microphone device includes: the vibrating membrane being mounted on the sound chamber bracket；Its oscillator is fixed on vibrating membrane
On voice coil motor.
Further, further includes: be installed on the front end of the sound cavity wall and have the decoration of sound mouth；It is covered on decoration
Waterproof membrane at the sound mouth of part.
Preferably, the waterproof membrane uses the translucent film of Ge Er waterproof, and the decoration is plastic decoration.
In addition, also a kind of mobile terminal with earphone structure as described above of the utility model.
Compared with prior art, the earphone structure of the utility model and the mobile terminal with the earphone structure have as follows
Advantage:
1, the earphone structure of the utility model, sound cavity wall inside have single-chamber channel or multiple lumen access, and single-chamber channel
Or the inner wall of multiple lumen access is continuous curved surface, reduces the reflection and refraction bring audio loss of sound cavity wall, and can be changed
The resonance frequency for cavity wall of changing voice avoids resonating, and can be avoided the possibility of the sound cavity wall abrupt change of cross-section when in particular by multiple lumen access,
The intensity for increasing sound cavity wall avoids sound cavity wall from being collapsed.
2, the earphone structure of the utility model, the single-chamber channel of sound cavity wall or multiple lumen access are the logical of cross section variation
Road, and the cross section of the rear end towards sound chamber bracket in channel is greater than the cross section of its front end, and sound cavity wall is enabled to reach sound
The effect of sound amplification.
3, the junction of the earphone structure of the utility model, sound chamber bracket and microphone device keeps sealing, good seal performance,
Ensure the privacy conversed.
Detailed description of the invention
Fig. 1 is the partial structure diagram that the utility model earphone structure is assemblied on mobile phone (microphone device is earpiece)；
Fig. 2 is the perspective view of the utility model sound cavity wall；
Fig. 3 is the main view of the utility model sound cavity wall；
Fig. 4 is the left view of the utility model sound cavity wall；
Fig. 5 is the perspective view of the utility model decoration；
Fig. 6 is the semi-cutaway of the utility model decoration；
Fig. 7 is that the utility model earphone structure uses the perspective view assembled when voice coil motor；
Fig. 8 is schematic diagram of the utility model earphone structure using first angle when voice coil motor；
Fig. 9 is schematic diagram of the utility model earphone structure using second angle when voice coil motor；
Figure 10 is the structure diagram of the utility model voice coil motor.
Specific embodiment
It is described in detail below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described below
Preferred embodiment be only used for describing and explaining the present invention, be not used to limit the utility model.
The utility model provides a kind of mobile terminal and the earphone structure for mobile terminal, which includes: use
In the intracavitary sound cavity wall 3 of the preceding sound for being mounted on mobile terminal front housing；It is mounted on the sound chamber of the rear end of the separate front housing 6 of sound cavity wall 3
Bracket 4；The microphone device being connect with sound chamber bracket 4；Wherein, there is single-chamber channel or multiple lumen access inside sound cavity wall 3；Sound cavity wall
3 single-chamber channel or multiple lumen access are the channel of cross section variation, before being greater than it towards the cross section of the rear end of sound chamber bracket 4
The cross section at end；The junction of sound chamber bracket 4 and microphone device seals.
Wherein, mobile terminal can be mobile phone, notebook, tablet computer, POS machine even vehicle-mounted computer etc., the present embodiment
Only by taking mobile terminal is mobile phone as an example, the earphone structure of the utility model is described.
Specifically, as shown in Figure 1, sound chamber before offering at the front housing of hand set machine shell 6, earpiece is installed preceding sound is intracavitary
Structure is also arranged LCD liquid crystal display screen 8 at front housing, and the top of the LCD liquid crystal display screen 8 is located at below earphone structure,
The outside of LCD liquid crystal display screen 8 is TP tempered glass 7.
The intracavitary earphone structure of preceding sound that is mounted on of the present embodiment includes sound cavity wall 3, and decoration is assembled in 3 front end of sound cavity wall
2, waterproof membrane 1 is sticked at the sound mouth of decoration 2.Assemble sound chamber bracket 4, microphone device and sound chamber branch in the rear end of sound cavity wall 3
Frame 4 connects, and the junction of the two keeps sealing by foam rubber, to ensure privacy when user's communication.
Wherein, as shown in figs 2-4, the sound cavity wall 3 of the present embodiment is small for front end, rear end is big, and front end rearward end arc
The component of transition.It should be noted that the front end of sound cavity wall 3 refers to that one end towards user, the rear end of sound cavity wall 3 refer to separate
User and towards one end of sound chamber bracket 4.
Being internally provided with the single-chamber channel extended along 3 extension direction of sound cavity wall or be isolated by multiple ribs in sound cavity wall 3
The multiple lumen access opened is changed the resonance frequency of sound cavity wall by single-chamber channel or multiple lumen access, avoids resonating.When processing, single-chamber
The inner wall of channel or multiple lumen access is continuous curved surface, so as to reduce the reflection and refraction bring audio of sound cavity wall 3
Loss.In addition, the single-chamber channel of sound cavity wall or multiple lumen access are the channel of cross section variation, before the cross section of its rear end is greater than it
The cross section at end makes sound cavity wall realize the function of amplification sound.When design, rationally determine that single-chamber channel or multi-cavity are logical in sound cavity wall
The size in road achievees the effect that sound amplifies to realize the resonance of audio.
Preferably, multiple lumen access is used in sound cavity wall, the resonance frequency in addition to can change sound cavity wall avoids resonance outer,
The possibility of the sound cavity wall abrupt change of cross-section can also be avoided, and increases the intensity of sound cavity wall, sound cavity wall is avoided to be collapsed.
Wherein, decoration 2 can pass through injection molding using decoration made of plastic cement.Preferably, decoration 2 is by PC
Engineering plastics and ABS resin are made, and appearance can change with the demand of moulding, as shown in Figure 5, Figure 6,2 side of decoration
Be arranged sound mouth 21, and 21 side of sound mouth paste waterproof membrane 1, the other side by glue paste and be interference fitted method and
Sound cavity wall 3 connects, since its sound mouth shape can be depending on modeling requirement, not by the constraint of microphone device.
Waterproof membrane 1 can use the translucent film of Ge Er waterproof, can waterproof and dustproof so that at the sound mouth of decoration 2 no longer
Need Air Filter.When production, waterproof membrane 1 is by mold excision forming, and thickness is in 0.03-0.05mm or so, and shape is according to making
The requirement of type determines, can be fixed on the sound mouth of decoration 2 by way of gluing or hot pressing.
The material of sound chamber bracket 4 can also use plastic cement, pass through injection molding.Generally use PC engineering plastics and ABS tree
Rouge is made.The inside (side i.e. far from sound cavity wall 3) of sound chamber bracket 4 cooperates microphone device, by foam rubber come adhesive seal.
The outside (side contacted with sound cavity wall 3) of sound chamber bracket 4 connects sound chamber by glue stickup and the method being interference fitted
Wall 3.The appearance of sound chamber bracket 4 can also change with the shape of microphone device.
Wherein, the sound cavity wall of the utility model can be fabricated from a flexible material, if sound cavity wall 3 is by thermoplastic elastomer (TPE) TPU
Or thermoplastic polyurethane TPE or silica gel are made, alternatively, sound cavity wall 3 is made of ebonite material, such as by makrolon material PC and/
Or the copolymer A BS of acrylonitrile, butadiene, styrene is made.
When sound cavity wall 3 is fabricated from a flexible material, microphone device can use earpiece 5 (as shown in Figure 1), correspondingly,
The side band towards earpiece 5 of sound chamber bracket 4 is fluted, and earpiece 5 is assemblied in the groove, and junction is kept by foam rubber
Sealing.Since sound cavity wall 3 is made of flexible material, the decoration 2 of rear and front end assembly and the relative position of sound chamber bracket 4 can
With arbitrarily adjustment in three dimensions, it can satisfy the layout requirements shielded comprehensively, and the volume of the preceding sound chamber of casing can be done
Enough to big.In addition, because the edge for being located proximate to complete machine (i.e. mobile phone) of decoration 2, the position of LCD liquid crystal display screen 8 can
To move up, display area is increased, improves screen accounting.When machine assembly (as shown in Figure 1), between being between decoration 2 and casing 6
Gap cooperation, sound chamber bracket 4 are fixed with respect to mainboard and casing 6.
When the utility model handset structure using the above structure when, lead to due to being divided into multi-cavity by rib inside sound cavity wall 3
Road, thus it is possible to vary the resonance frequency of sound chamber avoids resonating, during machine assembly, although the position of earpiece 4 and decoration 2
The variation of 3 shape of sound cavity wall can be brought by setting adjustment, but can be avoided thus 3 abrupt change of cross-section of bring sound cavity wall using multiple lumen access
Possibility, and increase the intensity of sound cavity wall 3, sound cavity wall 3 avoided to be collapsed.Since flexible material can stretch, distort, one
In fixed size range, the general of preceding sound chamber and uniformly may be implemented.Sound cavity wall 3 is flexible material, and the inner wall of multiple lumen access
For continuous curved surface, reduce the reflection and refraction bring audio loss of sound cavity wall 3, and realized by its plastic deformation and
The interference fit of decoration 2, sound chamber bracket 4 guarantees the sealed reliable of sound cavity wall.And sound cavity wall 3 multiple lumen access cross section changes
Become the resonance that can be realized audio, achievees the effect that sound amplifies.
Alternatively, the earpiece 5 in Fig. 1 can also be by being replaced with lower component, that is, as shown in figs. 7 to 9, microphone device includes:
The vibrating membrane 10 being mounted on sound chamber bracket 4；The rigid guide 15 that one end can be contacted with vibrating membrane 10；Its oscillator 13 and rigidity
The voice coil motor 9 (i.e. VCM motor) of the other end connection of guide rod 15.
Specifically, load onto vibrating membrane 10 in the side of the separate sound cavity wall 3 of sound chamber bracket 4, using being mounted in casing 6
VCM motor on shell issues the vibration signal of audio, is transmitted to 10 sounding of vibrating membrane by rigid guide 15, listens to remove
Cylinder 5, reduces cost.
Wherein, as shown in Figure 10, VCM motor includes pedestal 14, lead 16, coil 11, magnet 12, oscillator 13 and resets
Spring etc..VCM motor can be fixed using coil, can also be fixed using magnet.The audio by software control of mobile phone is believed
Number by generating changing magnetic field when coil 11, so that magnet 12 and coil 11 generate relative motion, oscillator 13 is driven to vibrate, and
Oscillator 13 is fixedly connected with rigid guide 15, drives rigid guide 15 to move when oscillator 13 vibrates and active force is transmitted to vibration
On film 10, the vibration synchronous with audio signal generation of vibrating membrane 10 is made a sound.The structure and work of the utility model VCM motor
It is same as the prior art to make principle, its structure and the course of work are not described in detail herein.
When the sound cavity wall 3 of the utility model is by ebonite material such as makrolon material PC and/or acrylonitrile, butadiene, benzene
When the copolymer A BS of ethylene is made, microphone device can be using structure as shown in figs. 7 to 9: vibration is installed on sound chamber bracket 4
Dynamic film 10, rigid guide 15 is installed on the oscillator 13 of VCM motor, contact rigid guide 15 can with vibrating membrane 10, thus will
The vibration signal that VCM motor issues is transmitted to 10 sounding of vibrating membrane by rigid guide 15, to remove earpiece.
Alternatively, microphone device can also be using such as flowering structure (not shown), comprising: be mounted on sound chamber bracket 4
Vibrating membrane 10, its oscillator 13 are fixed on the VCM motor 9 on vibrating membrane 10.The oscillator of VCM motor 9 is directly installed on vibrating membrane
On 10, the vibration signal that the oscillator 13 of VCM motor issues can be directly delivered to 10 sounding of vibrating membrane, save rigid guide 15,
Save cost.Alternatively, saving the oscillator 13 of VCM motor 9, the coil 11 of VCM motor 9 is fixed on vibrating membrane 10 as oscillator
On, then this vibrating membrane 10 is pasted on sound chamber bracket 4, it also can achieve same audio frequency effect.
Alternatively, microphone device can also be using such as flowering structure (not shown): being installed on the oscillator 13 of VCM motor 9
Rigid guide 15 directly contacts the other end of rigid guide 15 with sound chamber bracket 4, is not required to install vibration on sound chamber bracket 4
Film 10, so that the vibration signal that VCM motor issues is directly delivered to sound chamber bracket 4 by rigid guide 15, using sound chamber
Wall 3 is transmitted to decoration 2, and the skull of user is contacted by decoration 2, and the vibration signal that VCM motor generates directly is transmitted
To user's inner ear perilymph, it is converted into sound without external ear and middle ear, realizes osteoacusis.Due to mobile phone only and cranium
Position, that is, decoration 2 of bone contact is vibration, and whole mobile phone is not vibrated, to realize the privacy of call.
When sound cavity wall 3 is made of ebonite material, mold injection volume production can be passed through.It, can also be with double-colored in production
The method of injection molding becomes a part together with doing decoration 2 with sound cavity wall 3.
It using the earphone structure of the utility model, can satisfy the layout requirements that mobile terminal shields comprehensively, reduce cost, it is preceding
Sound chamber can be made unified, general sound chamber, can reduce cost, and meet the demands such as waterproof and dustproof.
In conclusion compared with prior art, the earphone structure of the utility model and the mobile end with the earphone structure
End has the advantages that
1, the earphone structure of the utility model, sound cavity wall inside have single-chamber channel or multiple lumen access, and single-chamber channel
Or the inner wall of multiple lumen access is continuous curved surface, reduces the reflection and refraction bring audio loss of sound cavity wall, and can be changed
The resonance frequency for cavity wall of changing voice avoids resonating, and can be avoided the possibility of the sound cavity wall abrupt change of cross-section when in particular by multiple lumen access,
The intensity for increasing sound cavity wall avoids sound cavity wall from being collapsed.
2, the earphone structure of the utility model, the single-chamber channel of sound cavity wall or multiple lumen access are the logical of cross section variation
Road, and the cross section of the rear end towards sound chamber bracket in channel is greater than the cross section of its front end, and sound cavity wall is enabled to reach sound
The effect of sound amplification.
3, the junction of the earphone structure of the utility model, sound chamber bracket and microphone device keeps sealing, good seal performance,
Ensure the privacy conversed.
4, the earphone structure of the utility model, decoration are plastic decoration, and the shape of sound mouth can be according to making
Depending on type requires, microphone device is not constrained.
It is preferred embodiments of the present invention above, it is noted that for those skilled in the art
For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
It is considered as the protection scope of the utility model.
Claims (10)
1. a kind of earphone structure, comprising:
The intracavitary sound cavity wall of preceding sound for being mounted on mobile terminal front housing；
It is mounted on the sound chamber bracket of the rear end of the separate front housing of sound cavity wall；
The microphone device being connect with sound chamber bracket；
It is characterized by:
There is single-chamber channel or multiple lumen access, and the inner wall of single-chamber channel or multiple lumen access is continuous bent inside the sound cavity wall
Face；
The single-chamber channel of the sound cavity wall or multiple lumen access are the channel of cross section variation, towards the cross of the rear end of sound chamber bracket
Section is greater than the cross section of its front end；
The junction of the sound chamber bracket and the microphone device seals.
2. earphone structure according to claim 1, which is characterized in that the sound cavity wall is by flexible material or ebonite material system
At.
3. earphone structure according to claim 2, which is characterized in that the sound cavity wall is by thermoplastic elastomer (TPE) TPU or heat
Plastic polyurethane TPE or silica gel are made.
4. earphone structure according to claim 2, which is characterized in that the sound cavity wall by makrolon material PC and/or
Acrylonitrile, butadiene, styrene copolymer A BS be made.
5. earphone structure according to claim 3, which is characterized in that the microphone device is earpiece.
6. earphone structure according to claim 3 or 4, which is characterized in that the microphone device includes:
The vibrating membrane being mounted on the sound chamber bracket；
The rigid guide that one end can be contacted with vibrating membrane；
The voice coil motor of the other end of its oscillator and rigid guide connection.
7. earphone structure according to claim 4, which is characterized in that the microphone device includes:
The vibrating membrane being mounted on the sound chamber bracket；
Its oscillator or coil are fixed on the voice coil motor on vibrating membrane.
8. earphone structure according to claim 1, which is characterized in that further include:
It is installed on the front end of the sound cavity wall and has the decoration of sound mouth；
The waterproof membrane being covered at the sound mouth of decoration.
9. earphone structure according to claim 8, which is characterized in that the waterproof membrane uses the translucent film of Ge Er waterproof, institute
Stating decoration is plastic decoration.
10. a kind of mobile terminal with the earphone structure as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371075.0U CN208590014U (en) | 2018-08-24 | 2018-08-24 | Mobile terminal and its earphone structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371075.0U CN208590014U (en) | 2018-08-24 | 2018-08-24 | Mobile terminal and its earphone structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208590014U true CN208590014U (en) | 2019-03-08 |
Family
ID=65544901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821371075.0U Active CN208590014U (en) | 2018-08-24 | 2018-08-24 | Mobile terminal and its earphone structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208590014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111800531A (en) * | 2019-04-09 | 2020-10-20 | 北京小米移动软件有限公司 | Earphone module and electronic equipment |
| CN113542472A (en) * | 2020-04-15 | 2021-10-22 | 华为技术有限公司 | Electronic equipment |
-
2018
- 2018-08-24 CN CN201821371075.0U patent/CN208590014U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111800531A (en) * | 2019-04-09 | 2020-10-20 | 北京小米移动软件有限公司 | Earphone module and electronic equipment |
| CN111800531B (en) * | 2019-04-09 | 2022-09-30 | 北京小米移动软件有限公司 | Earphone module and electronic equipment |
| CN113542472A (en) * | 2020-04-15 | 2021-10-22 | 华为技术有限公司 | Electronic equipment |
| CN113542472B (en) * | 2020-04-15 | 2022-09-16 | 华为技术有限公司 | Electronic device |
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