CN108810766A - sound-producing device and portable terminal - Google Patents
sound-producing device and portable terminal Download PDFInfo
- Publication number
- CN108810766A CN108810766A CN201810867273.4A CN201810867273A CN108810766A CN 108810766 A CN108810766 A CN 108810766A CN 201810867273 A CN201810867273 A CN 201810867273A CN 108810766 A CN108810766 A CN 108810766A
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- Prior art keywords
- sound
- producing device
- vibration damping
- leakage hole
- damping channel
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention discloses a kind of sound-producing device and portable terminal, wherein sound-producing device includes：Loudspeaker unit and damper unit；Wherein, the loudspeaker unit includes shell, vibrational system and magnetic circuit system；The operatic tunes after being formed between the vibrating diaphragm of the vibrational system and the conductive magnetic yoke of magnetic circuit system, the shell are equipped with the internal leakage hole being connected to the rear operatic tunes；The damper unit includes box body, the leakage hole that leaks is offered on the box body, the box body also has vibration damping channel, the damping channel has the entrance being docked and connected with the internal leakage hole, and the outlet being docked and connected with the leakage hole that leaks, the vibration damping channel has connects the vibration damping feeder connection and the internal face of outlet with the path of bending.The air-flow that sound-producing device air vibration of the present invention is propagated will produce multiple deflecting and reflection when entering open back cavity by vibration damping channel, it is ensured that the portable terminal applied is avoided to generate excessive vibration.
Description
Technical field
The present invention relates to electroacoustic techniques field, more particularly to a kind of sound-producing device and portable terminal.
Background technology
Existing sound-producing device when applied to portable terminal product such as mobile phone, tablet computer or laptop,
It is stereo in order to realize, it needs to be applied in the environment of open back cavity, that is, uses the inner cavity of portable terminal as back cavity；Then,
Since under stereo mode, the loudspeaker unit of sound-producing device will produce stronger vibration, and which part vibrational energy can be led
The portable terminal applied is caused to generate excessive vibration, to reduce user's application experience.
Invention content
The main object of the present invention is to propose a kind of sound-producing device, it is intended to solve existing sound-producing device in stereo mode
It is lower that the portable terminal applied can be caused to vibrate excessive technical problem.
To achieve the above object, sound-producing device proposed by the present invention, including：
Loudspeaker unit and damper unit；Wherein,
The loudspeaker unit includes shell, vibrational system and magnetic circuit system；
The operatic tunes after being formed between the vibrating diaphragm of the vibrational system and the conductive magnetic yoke of magnetic circuit system, the shell are equipped with and institute
State the internal leakage hole of rear operatic tunes connection；
The damper unit includes box body, the box body also have vibration damping channel, the damping channel have with it is described interior
The entrance that leak is docked and connected, and the outlet that is docked and connected with the leakage hole that leaks, the vibration damping channel have with bending
Path connect the vibration damping feeder connection and the internal face of outlet.
Preferably, the box body is located at the lateral periphery of the loudspeaker unit.
Preferably, the box body includes the bottom wall for being parallel to the vibrating diaphragm, respectively from the opposite sides side of the bottom wall to
The amount side wall that the same side of the bottom wall extends, and lid close the roof on two side walls；
The damper unit further includes the partition board being arranged between the bottom wall and roof；The partition board is enclosed with the box body
Conjunction forms the vibration damping channel.
Preferably, the side wall includes the first side wall opposite with the loudspeaker unit, and is located at first side
Two opposite second sidewalls between wall and the loudspeaker unit.
Preferably, the partition board is provided with multiple, and multiple partition boards prolong from the internal face of two second sidewalls in opposite directions respectively
It stretches to be formed, multiple partition boards are in the first side wall towards staggeredly interval setting on the direction of the loudspeaker unit.
Preferably, the outlet in the vibration damping channel is formed in the second sidewall, and the leakage hole that leaks is in grid-like.
Preferably, the partition board is at least provided with one, and the partition board is from the first side wall to the loudspeaker unit
It extends to form, forms the vibration damping channel between the partition board and the neighbouring second sidewall；
In the first side wall towards on the direction of the loudspeaker unit, the cross section in the vibration damping channel is handed in size
For variation.
Preferably, the partition board is provided with multiple, and the vibration damping channel is also formed between two partition boards of arbitrary neighborhood.
Preferably, the partition board includes the first partition portion and the multiple second partitions portion of multiple alternately head and the tail connections；
The extending direction in first partition portion is parallel with the second sidewall, the extending direction in second partition portion with
The first side wall is parallel；
In the first side wall towards on the direction of the loudspeaker unit, the row of interval successively of multiple second partition portions
Cloth；
Two first partition portions of arbitrary neighborhood are from a second sidewall towards the side of another second sidewall
It is staggered upwards.
Preferably, the outlet in the vibration damping channel is formed on the first side wall, and the leakage hole that leaks is in grid-like.
Preferably, the shell includes protecgulum and framework, and the protecgulum is covered on the framework and is enclosed with the framework
Host cavity is formed, the vibrational system and magnetic circuit system are located at the host cavity, the bottom wall, side wall and partition board and the framework
It is wholely set.
Preferably, the damper unit is arranged there are two and is located at the opposite both sides of the loudspeaker unit, described
Shell corresponds to two box bodys and is respectively arranged with the internal leakage hole.
Preferably, the damper unit further includes the sound-absorbing material being filled in the vibration damping channel.
The present invention also proposes that a kind of portable terminal, including shell, the enclosure have accommodating cavity, the portable terminal
Further include the sound-producing device, the sound-producing device is mounted on the accommodating cavity, and the shell offers the corresponding vibration system
The acoustic aperture of the vibrating diaphragm setting of system, the accommodating cavity have the dilatation chamber being connected to the leakage hole that leaks；
The sound-producing device includes loudspeaker unit and damper unit；Wherein,
The loudspeaker unit includes shell, vibrational system and magnetic circuit system；
The operatic tunes after being formed between the vibrating diaphragm of the vibrational system and the conductive magnetic yoke of magnetic circuit system, the shell are equipped with and institute
State the internal leakage hole of rear operatic tunes connection；
The damper unit includes box body, and the leakage hole that leaks is offered on the box body, and the box body also has vibration damping channel,
The damping channel has the entrance being docked and connected with the internal leakage hole, and goes out with what the leakage hole that leaks was docked and connected
Mouthful, the vibration damping channel has connects the vibration damping feeder connection and the internal face of outlet with the path of bending.
Sound-producing device of the present invention by by vibration damping channel be designed to with the path of bending connect vibration damping feeder connection and
The internal face of outlet, in this way, the air-flow that air vibration is propagated will produce multiple change when entering open back cavity by vibration damping channel
To with reflection, while vibration damping channel itself can also absorb the energy of its interior air vibration, and play keeps vibration damping logical in combination
The effect for the flowed energy decaying that air vibration is propagated in road, to reduce the acoustical vibration energy for being transferred to open back cavity,
And then it ensure that the portable terminal for avoiding being applied generates excessive vibration.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of sound-producing device first embodiment of the present invention；
Fig. 2 is structural schematic diagram of the sound-producing device after removing box body roof in Fig. 1；
Fig. 3 is the partial enlarged view at A in Fig. 2；
Fig. 4 is the structural schematic diagram of sound-producing device second embodiment of the present invention；
Fig. 5 is the structural schematic diagram after removing box body roof of sound-producing device in Fig. 4；
Fig. 6 is the partial enlarged view at B in Fig. 5.
Drawing reference numeral explanation：
| Label | Title | Label | Title | Label | Title |
| 100a | Sound-producing device | 2a | Damper unit | 214 | Roof |
| 100b | Sound-producing device | 21a | Box body | 22a | Partition board |
| 1 | Loudspeaker unit | 211a | Leak leakage hole | 2b | Damper unit |
| 11 | Internal leakage hole | 212a | Vibration damping channel | 21b | Box body |
| 12 | Protecgulum | 213 | Bottom wall | 211b | Leak leakage hole |
| 13 | Framework | 214 | The first side wall | 212b,213b | Vibration damping channel |
| 121 | Vibrating diaphragm | 215 | Second sidewall | 22b | Partition board |
100a：Sound-producing device；100b：Sound-producing device；1：Loudspeaker unit；11：Internal leakage hole；12：Protecgulum；13：Framework；
121：Vibrating diaphragm；2a：Damper unit；21a：Box body；211a：Leak leakage hole；212a：Vibration damping channel；213：Bottom wall；214：First side
Wall；215：Second sidewall；214：Roof；22a：Partition board；2b：Damper unit；21b：Box body；211b：Leak leakage hole；212b,
213b：Vibration damping channel；22b：Partition board；
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
If it is to be appreciated that related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining relative position relation under a certain particular pose (as shown in the picture) between each component,
Motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, it is somebody's turn to do " first ", " second " etc.
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.In addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, when the knot that conflicting or cannot achieve when will be understood that this technical solution occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection domain within.
The present invention proposes a kind of sound-producing device.
In embodiments of the present invention, shown in as shown in Figure 1, Figure 2, Fig. 4 and Fig. 5, which includes：
Loudspeaker unit 1 and damper unit (2a, 2b)；Wherein,
Loudspeaker unit 1 includes shell, vibrational system and magnetic circuit system (not indicating)；
Operatic tunes (not shown) after being formed between the vibrating diaphragm 121 of vibrational system and the conductive magnetic yoke (not shown) of magnetic circuit system, shell
Body is equipped with the internal leakage hole 11 being connected to the rear operatic tunes；
Damper unit (2a, 2b) includes box body (21a, 21b), offered on box body (21a, 21b) leakage hole that leaks (211a,
211b), box body (21a, 21b) also has vibration damping channel (212a, 212b), and vibration damping channel (212a, 212b) has and internal leakage
The entrance that hole 11 is docked and connected, and outlet that the leakage hole that leaks (211a, 211b) is docked and connected, vibration damping channel (212a, 212b)
Internal face with path connection vibration damping channel (212a, 212b) entrance and outlet with bending.
In the present embodiment, shell is similar with box body (21a, 21b), is used to provide accommodating space and supporting role, example
As shell can be used for supporting vibrational system and magnetic circuit system, shell can be both wholely set with box body (21a, 21b), or
Split settings.
Vibrational system and magnetic circuit system can refer to existing form, such as the voice coil of vibrational system and vibrational system
Vibrating diaphragm 121 connects, and voice coil stretches into the magnetic gap of magnetic circuit system, and the electric current of voice coil connection variation is then by different size of ampere
Power and vibrate, voice coil vibrations drive vibrating diaphragm 121 vibrate, energy conversion mode is electric energy-mechanical energy-acoustic energy.
In order to adjust the frequency characteristic of vibration, vibrational system may also include clump weight.Magnetic circuit system can be single magnetic circuit system
System, the magnetic gap of double magnetic circuit system etc., magnetic circuit system are formed between side magnetic circuit part and center magnetic path portion, it is however generally that,
At least one includes permanent magnet in side magnetic circuit part and center magnetic path portion.Correspondingly, conductive magnetic yoke both can be simple flat
Plate, can also be with the peviform of side wall.
In addition, in order to adjust sounding, screen cloth can be set at internal leakage hole 11 and the leakage hole (211a, 211b) that leaks.Extremely
Structure type in internal leakage hole 11 and outward leakage hole can be single through-hole, or multiple through-holes are such as in grid
Shape.
Vibration damping channel (212a, 212b) in box body (21a, 21b) has multiple in the vibration damping channel (212a, 212b)
In the embodiment of the internal face extended parallel, then at least one internal face be bent path connection vibration damping channel (212a,
Entrance 212b) and outlet.Based on this, the cross section of vibration damping channel (212a, 212b) can be extend along path it is constant or
The structure of variation.For example, box body (21a, 21b) prismatic bend pipe is set be enclosed the vibration damping channel (212a,
212b), in this way, it is that multiple deflecting and reflection occur for the propagation air-flow of air vibration, and then reach vibrational energy that can equally play
Measure the effect of decaying.
Sound-producing device (100a, 100b) of the present invention is by the way that vibration damping channel (212a, 212b) to be designed to have with bending
Path connects vibration damping channel (212a, 212b) entrance and the internal face of outlet, in this way, the air-flow that air vibration is propagated is by subtracting
It shakes and will produce multiple deflecting and reflection when channel (212a, 212b) enters open back cavity, while vibration damping channel (212a, 212b) is originally
Body can also absorb the energy of its interior air vibration, and play makes vibration damping channel (212a, 212b) interior air vibration in combination
The effect of the flowed energy decaying of propagation, to reduce the acoustical vibration energy for being transferred to open back cavity, and then ensure that and keep away
The portable terminal for exempting to be applied generates excessive vibration.
Further, box body (21a, 21b) is located at the lateral periphery of loudspeaker unit 1.In this way, advantageously reducing sounding dress
The thickness of (100a, 100b) is set, so that the sound-producing device (100a, 100b) of the embodiment is adapted to flat installation
Space, for example, mobile phone inner cavity.
Further, box body (21a, 21b) includes the bottom wall 213 for being parallel to vibrating diaphragm 121, respectively from the opposite of bottom wall 213
The two side that two sides extend to the same side of bottom wall 213, and lid close the roof 214 on two side；Damper unit (2a,
2b) further include the partition board (22a, 22b) being arranged between bottom wall 213 and roof 214；Partition board (22a, 22b) and box body (21a,
21b) it is enclosed vibration damping channel (212a, 212b).
In the present embodiment, the vibration damping channel that box body (21a, 21b) thin-wall construction is enclosed with partition board (22a, 22b)
(212a, 212b) is compact-sized, and since box body (21a, 21b) is relatively regular bulk, and bottom wall 213 is parallel to vibrating diaphragm
121, as a result, the thickness of damper unit (2a, 2b) is smaller, for flat installation space adaptability higher.
Further, side wall includes the first side wall 214 opposite with loudspeaker unit 1, and positioned at the first side wall 214 with
Two opposite second sidewalls 215 between loudspeaker unit 1.
In the present embodiment, on the one hand side wall, which is arranged to three-sided configuration, can facilitate box body (21a, 21b) and loud speaker list
The internal leakage hole 11 of member 1 is docked and connected, and is on the other hand also convenient for adapting to the installation space of rectangular-blocklike, in this way, after installation
Space availability ratio higher.
Further, Fig. 2 and Fig. 3 is please referred to, in the first embodiment of the present invention, partition board (22a, 22b) is provided with more
A, multiple partition boards (22a, 22b) extend towards to be formed from the internal face of two second sidewalls 215 respectively, multiple partition boards (22a, 22b)
In the first side wall 214 towards staggeredly interval setting on the direction of loudspeaker unit 1.
In the present embodiment, by being arranged, partition board (22a, 22b) can easily formation subtracts in box body (21a, 21b)
Shake channel (212a, 212b), is particularly suited for large-scale technique productions.In the process of work, the propagation air-flow of air is vibrated
It needs around partition board (22a, 22b) multiple deflecting, and the part energy for vibrating air can also be absorbed by partition board (22a, 22b).
Further, the outlet of vibration damping channel (212a, 212b) is formed in second sidewall 215, can so to subtract
Shake channel (212a, 212b) the length of itself it is relatively long, that is, extend air vibration propagation air-flow in vibration damping channel
(212a, 212b) interior stay longer；And the leakage hole that leaks (211a, 211b) is in grid-like, is conducive to air more to disperse
And equably propagate to open back cavity.
Further, Fig. 5 and Fig. 6 is please referred to, in the first embodiment of the present invention, partition board (22a, 22b) is at least arranged
There are one, partition board (22a, 22b) is extended to form from the first side wall 214 to loudspeaker unit 1, partition board (22a, 22b) with it is neighbouring
Vibration damping channel (212a, 212b) is formed between second sidewall 215；In the first side wall 214 towards on the direction of loudspeaker unit 1,
The cross section in vibration damping channel (212a, 212b) alternately changes in size.
In the present embodiment, as an example, vibration damping channel (212a, 212b) is assumed in setting, there are two kinds of cross section size models
The section enclosed, relatively large section of cross section are known as " room ", and relatively small section of cross section referred to as " is managed ".In this way, in each pipe
Air its quality can be used as acoustic mass and acoustic resistance exists, the air in each room exists as acoustic compliance, manages and the combination of room
It constitutes acoustic filter and passes through the design and group to pipe and room in this way, there is the intrinsic frequency of oneself in the room each being connect with pipe
It closes, you can the decaying to different frequency vibrational energy is realized when air-flow is by vibration damping channel (212a, 212b).
Further, partition board (22a, 22b) is provided with multiple, is also formed between two partition boards (22a, 22b) of arbitrary neighborhood
Vibration damping channel (212a, 212b).In the present embodiment, can be used for reducing air-flow in this way, on the one hand can be formed as much as possible
The vibration damping channel (212a, 212b) of vibrational energy, on the other hand can increase the type of vibration damping channel (212a, 212b), to
Promote the energy attenuation effect to different frequency sound.
Further, in order to make the changes of section in vibration damping channel (212a, 212b) become apparent, formation preferably " is mutated "
Effect, the partition board (22a, 22b) include the first partition portion and the multiple second partitions portion of multiple alternately head and the tail connections；
The extending direction in first partition portion is parallel with the second sidewall 215, the extension side in second partition portion
To parallel with the first side wall 214；
In the first side wall 214 towards on the direction of the loudspeaker unit 1, multiple second partition portions successively between
Every arrangement；
Two first partition portions of arbitrary neighborhood are from a second sidewall 215 towards another second sidewall
It is staggered on 215 direction.
Further, the outlet of vibration damping channel (212a, 212b) is formed on the first side wall 214, similarly, so can be with
So that the length of itself of vibration damping channel (212a, 212b) is relatively long, that is, extend the air-flow of the propagation of air vibration in vibration damping
Channel (212a, 212b) interior stay longer；And the leakage hole that leaks (211a, 211b) is in grid-like, is conducive to air with more
Disperse and equably propagate to open back cavity.
Further, shell includes protecgulum 12 and framework 13, and protecgulum 12 is covered on framework 13 and is enclosed with framework 13
Host cavity (not shown), vibrational system and magnetic circuit system are located at host cavity, bottom wall 213, side wall and partition board (22a, 22b) and framework
13 are wholely set.
In the present embodiment, by this Integration Design, shell split settings can facilitate the parts in shell to install,
And the bottom wall 213 and side wall of box body (21a, 21b) are wholely set, and are facilitated and are reduced in amount of parts and box body (21a, 21b)
The formation of chamber；In addition, a part of structure of box body (21a, 21b) is wholely set with framework 13, then zero can be further reduced
The quantity of part, the progress of ease of assembly.
Further, damper unit (2a, 2b) is arranged there are two and is located at the opposite both sides of loudspeaker unit 1, shell
Body corresponds to two box bodys (21a, 21b) and is respectively arranged with internal leakage hole 11.In this way, the shape of sound-producing device (100a, 100b) is formed
Strip avoids and occupies excessive space in multiple dimensional directions.Preferably, referring once again to Fig. 1 and Fig. 4, loudspeaker unit 1
And the main view outer profile of box body (21a, 21b) phase split is rectangle.
Further, damper unit (2a, 2b) further includes the sound-absorbing material being filled in vibration damping channel (212a, 212b)
(not shown).Sound-absorbing material, which can be loose porous fiber, foam particle, zeolite, activated carbon etc., can make air vibration energy
The material of decaying.In general, setting sound-absorbing material belongs to resistive vibration damping merely, and the internal face that bending is arranged merely is sent out
It penetrates filtering and then belongs to resistance vibration damping.It is bent the internal face extended by the way that sound-absorbing material combination vibration damping channel (212a, 212b) is arranged,
The vibration-proof structure of impedance complex is then may make up, to obtain preferably full range attenuating.In addition, in order to adjust sounding, inside let out
Screen cloth can be set at leakage hole 11 and the leakage hole (211a, 211b) that leaks.As for the structure shape in internal leakage hole 11 and outward leakage hole
Formula can be single through-hole, or multiple through-holes, such as first embodiment of the invention, the leakage hole that leaks (211a,
It is in 211b) grid-like.
The present invention also proposes that a kind of portable terminal (not shown), including shell, enclosure have accommodating cavity, portable terminal
Further include sound-producing device (100a, 100b), the concrete structure of the sound-producing device (100a, 100b) with reference to above-described embodiment, due to
This portable terminal uses whole technical solutions of above-mentioned all embodiments, therefore at least technical solution with above-described embodiment
Caused all advantageous effects, this is no longer going to repeat them.Wherein, sound-producing device (100a, 100b) is mounted on accommodating cavity, outside
Shell offers the acoustic aperture that the vibrating diaphragm 121 of corresponding vibrational system is arranged, and accommodating cavity, which has, to be connected to the leakage hole that leaks (211a, 211b)
Dilatation chamber.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
In the scope of patent protection that other related technical areas are included in the present invention.
Claims (14)
1. a kind of sound-producing device, which is characterized in that including：
Loudspeaker unit and damper unit；Wherein,
The loudspeaker unit includes shell, vibrational system and magnetic circuit system；
Between the vibrating diaphragm of the vibrational system and the conductive magnetic yoke of magnetic circuit system formed after the operatic tunes, the shell be equipped with it is described after
The internal leakage hole of operatic tunes connection；
The damper unit includes box body, the leakage hole that leaks is offered on the box body, the box body also has vibration damping channel, described
Damping channel has the entrance being docked and connected with the internal leakage hole, and the outlet being docked and connected with the leakage hole that leaks, institute
It states vibration damping channel and has and the vibration damping feeder connection and the internal face of outlet connected with the path of bending.
2. sound-producing device as described in claim 1, which is characterized in that the box body is located at the lateral outer of the loudspeaker unit
It encloses.
3. sound-producing device as claimed in claim 2, which is characterized in that
The box body includes the bottom wall for being parallel to the vibrating diaphragm, respectively from the opposite sides side of the bottom wall to the same of the bottom wall
The two side that side extends, and lid close the roof on two side walls；
The damper unit further includes the partition board being arranged between the bottom wall and roof；The partition board encloses shape with the box body
At the vibration damping channel.
4. sound-producing device as claimed in claim 3, which is characterized in that the side wall includes opposite with the loudspeaker unit
The first side wall, and two opposite second sidewalls between the first side wall and the loudspeaker unit.
5. sound-producing device as claimed in claim 4, which is characterized in that the partition board be provided with it is multiple, multiple partition boards respectively from
The internal face of two second sidewalls extends towards to be formed, and multiple partition boards are in the first side wall towards the loud speaker list
Staggeredly interval setting on the direction of member.
6. sound-producing device as claimed in claim 5, which is characterized in that the outlet in the vibration damping channel is formed in the second side
On wall, the leakage hole that leaks is in grid-like.
7. sound-producing device as claimed in claim 4, which is characterized in that
At least provided with one, the partition board extends to form the partition board from the first side wall to the loudspeaker unit, institute
It states and forms the vibration damping channel between partition board and the neighbouring second sidewall；
In the first side wall towards on the direction of the loudspeaker unit, the cross section in the vibration damping channel alternately becomes in size
Change.
8. sound-producing device as claimed in claim 7, which is characterized in that the partition board is provided with multiple, two institutes of arbitrary neighborhood
It states and also forms the vibration damping channel between partition board.
9. sound-producing device as claimed in claim 7 or 8, which is characterized in that
The partition board includes the first partition portion and the multiple second partitions portion of multiple alternately head and the tail connections；
The extending direction in first partition portion is parallel with the second sidewall, the extending direction in second partition portion with it is described
The first side wall is parallel；
In the first side wall towards on the direction of the loudspeaker unit, multiple second partition portions are intervally arranged successively；
Two first partition portions of arbitrary neighborhood are on from a second sidewall towards the direction of another second sidewall
It is staggered.
10. sound-producing device as claimed in claim 7 or 8, which is characterized in that the outlet in the vibration damping channel is formed in described
In one side wall, the leakage hole that leaks is in grid-like.
11. sound-producing device as claimed in claim 3, which is characterized in that the shell includes protecgulum and framework, the protecgulum lid
It is enclosed host cavity together in the framework and with the framework, the vibrational system and magnetic circuit system are located at the host cavity,
The bottom wall, side wall and partition board are wholely set with the framework.
12. sound-producing device as described in claim 1, which is characterized in that there are two the damper unit settings and is located at
The opposite both sides of the loudspeaker unit, the shell correspond to two box bodys and are respectively arranged with the internal leakage hole.
13. sound-producing device as described in claim 1, which is characterized in that the damper unit further includes being filled in the vibration damping
Sound-absorbing material in channel.
14. a kind of portable terminal, including shell, the enclosure has accommodating cavity, which is characterized in that the portable terminal is also
Including the sound-producing device as described in claim any one of 1-13, the sound-producing device is mounted on the accommodating cavity, and the shell is opened
The acoustic aperture of vibrating diaphragm setting equipped with the correspondence vibrational system, the accommodating cavity have the dilatation being connected to the leakage hole that leaks
Chamber.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810867273.4A CN108810766A (en) | 2018-08-01 | 2018-08-01 | sound-producing device and portable terminal |
| CN201811306118.1A CN109348380A (en) | 2018-08-01 | 2018-11-02 | Sounding device and portable terminal |
| CN201821808358.7U CN208798214U (en) | 2018-08-01 | 2018-11-02 | Sounding device and portable terminal |
| PCT/CN2018/121125 WO2020024522A1 (en) | 2018-08-01 | 2018-12-14 | Sound generation apparatus and portable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810867273.4A CN108810766A (en) | 2018-08-01 | 2018-08-01 | sound-producing device and portable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108810766A true CN108810766A (en) | 2018-11-13 |
Family
ID=64078928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810867273.4A Pending CN108810766A (en) | 2018-08-01 | 2018-08-01 | sound-producing device and portable terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108810766A (en) |
| WO (1) | WO2020024522A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020024522A1 (en) * | 2018-08-01 | 2020-02-06 | 歌尔股份有限公司 | Sound generation apparatus and portable terminal |
| CN112312265A (en) * | 2020-11-05 | 2021-02-02 | 深圳市讴鸟科技有限公司 | Tuning pressure relief structure and independent acoustic cavity |
| CN112533114A (en) * | 2019-09-18 | 2021-03-19 | 华为技术有限公司 | Sounding device and electronic equipment |
| WO2022266843A1 (en) * | 2021-06-22 | 2022-12-29 | 海能达通信股份有限公司 | Loudspeaker module and electronic device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217116309U (en) * | 2022-03-30 | 2022-08-02 | 瑞声光电科技(常州)有限公司 | Loudspeaker box |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063855Y (en) * | 2007-03-29 | 2008-05-21 | 邹志勇 | Plate speaker |
| JP5110012B2 (en) * | 2008-03-27 | 2012-12-26 | ヤマハ株式会社 | Speaker device |
| CN202551304U (en) * | 2012-03-30 | 2012-11-21 | 马睿 | Speaker structure |
| CN203632856U (en) * | 2013-11-26 | 2014-06-04 | 瑞声科技（南京）有限公司 | Miniature loudspeaker system |
| CN108810766A (en) * | 2018-08-01 | 2018-11-13 | 歌尔股份有限公司 | sound-producing device and portable terminal |
-
2018
- 2018-08-01 CN CN201810867273.4A patent/CN108810766A/en active Pending
- 2018-12-14 WO PCT/CN2018/121125 patent/WO2020024522A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020024522A1 (en) * | 2018-08-01 | 2020-02-06 | 歌尔股份有限公司 | Sound generation apparatus and portable terminal |
| CN112533114A (en) * | 2019-09-18 | 2021-03-19 | 华为技术有限公司 | Sounding device and electronic equipment |
| CN112533114B (en) * | 2019-09-18 | 2022-05-13 | 华为技术有限公司 | Sounding device and electronic equipment |
| CN112312265A (en) * | 2020-11-05 | 2021-02-02 | 深圳市讴鸟科技有限公司 | Tuning pressure relief structure and independent acoustic cavity |
| WO2022266843A1 (en) * | 2021-06-22 | 2022-12-29 | 海能达通信股份有限公司 | Loudspeaker module and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020024522A1 (en) | 2020-02-06 |
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Legal Events
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |