CN208063452U - Voice coil and microphone - Google Patents
Voice coil and microphone Download PDFInfo
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- CN208063452U CN208063452U CN201820629404.0U CN201820629404U CN208063452U CN 208063452 U CN208063452 U CN 208063452U CN 201820629404 U CN201820629404 U CN 201820629404U CN 208063452 U CN208063452 U CN 208063452U
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- skeleton
- voice coil
- winding
- intercommunicating pore
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Abstract
The utility model discloses a kind of voice coil and microphone, wherein the voice coil includes voice coil line and skeleton；The voice coil line includes the first winding and the second winding；Skeleton is arranged in a ring, and skeleton is embedded between first winding and the second winding；The skeleton is equipped with the intercommunicating pore being connected to inside and outside the voice coil.The acoustical behavior of microphone can be improved in the technical solution of the utility model.
Description
Technical field
The utility model is related to acoustic-electric conversion equipment field, more particularly to a kind of voice coil and microphone.
Background technology
Currently, with microphone, especially midget microphone requires smaller and smaller in its size, while vibrating area more
Greatly, under the trend of voice coil bigger, the magnetic circuit system magnetic gap of microphone is also smaller and smaller.At this point, being the lower section of vibrating diaphragm on the inside of voice coil
Air to pass through the influence that brings of interior magnetic gap to be certain to increasing, specifically can behave as magnetic gap air-flow to air damping (Q values),
The measurement ratio of the influences such as vibrational state increases obviously, bad to be easy to cause the excessively high acoustical behavior of total harmonic distortion.
Utility model content
The main purpose of the utility model is to provide a kind of voice coil, it is intended to improve the acoustical behavior of microphone.
To achieve the above object, the utility model proposes voice coil include voice coil line and skeleton；The voice coil line includes
First winding and the second winding；Skeleton is arranged in a ring, and skeleton is embedded between first winding and the second winding；The bone
Frame is equipped with the intercommunicating pore being connected to inside and outside the voice coil.
Preferably, the intercommunicating pore is nick shaped, and the intercommunicating pore is enclosed with first winding or the second winding
Venting channels；And/or the intercommunicating pore is in circumferentially closed shape, the intercommunicating pore is individually formed venting channels.
Preferably, the quantity of the intercommunicating pore is multiple, and multiple intercommunicating pores are along the circumferentially-spaced arrangement of the skeleton.
Preferably, total length of multiple intercommunicating pores in the circumferential direction along the skeleton accounts for the ratio of the skeleton total length
Example ranging from 40%~60%, height of the intercommunicating pore on the axial direction along the skeleton accounts for the ratio of the skeleton thickness
Example ranging from 10%~30%.
Preferably, the skeleton is made of porous material.
Preferably, the voice coil line further includes connecting the connecting wire of first winding and the second winding, the skeleton
It is equipped with to house the link slot of the connecting wire.
Preferably, the skeleton includes peripheral surface, inner peripheral surface and is set between the peripheral surface and inner peripheral surface and opposite
The first end face and second end face of setting, the link slot are arranged in the peripheral surface and penetrate through the first end face and second end
Face, the first end face connect with first winding, and the second end face connects with second winding.
Preferably, the axial direction of the relatively described skeleton of the link slot is inclined to set.
The utility model also proposes a kind of microphone, which includes vibrational system and magnetic circuit system, the vibration system
System includes vibrating diaphragm and voice coil, and the vibrating diaphragm is connect with side of the voice coil far from the magnetic circuit system.The voice coil includes voice coil
Line and skeleton；The voice coil line includes the first winding and the second winding；Skeleton is arranged in a ring, and skeleton is embedded at described first
Between winding and the second winding；The skeleton is equipped with the intercommunicating pore being connected to inside and outside the voice coil.
Preferably, the intercommunicating pore is arranged on the skeleton close to the vibrating diaphragm.
It, should since skeleton is equipped with the intercommunicating pore inside and outside connection voice coil in the technical solution of the utility model voice coil
Intercommunicating pore can be connected to inside and outside the voice coil of acoustical generator, and so as to make the acoustical behavior of acoustical generator more stablize, sounding effect is more
It is good；Simultaneously as the presence of skeleton, effective heat dissipation area increases, so as to be effectively improved heat dissipation；In addition, new in this practicality
In the technical solution of type, voice coil line is wound in the both sides up and down of ring skeleton, so as to make voice coil height increase, is inserted into magnetic gap
Depth also accordingly increase, in this way, the total harmonic distortion of acoustical generator can be reduced effectively.This several respect integrates, and can carry significantly
The acoustical behavior of high microphone.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the Structure explosion diagram of one embodiment of the utility model microphone；
Fig. 2 is in structural schematic diagram when assembled state for microphone in Fig. 1；
Fig. 3 is the cross-sectional view along the directions S1-S1 in Fig. 2；
Fig. 4 is the structural schematic diagram of the skeleton in Fig. 1；
Fig. 5 is the structural schematic diagram of the skeleton of another embodiment of the utility model voice coil；
Fig. 6 is voice coil line and structural schematic diagram when Skeleton assembly in Fig. 5；
Fig. 7 is the cross-sectional view along the directions S2-S2 in Fig. 6.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 1 | Microphone | 15 | Conductive magnetic yoke |
| 16 | Magnet steel | 161 | Center magnet steel |
| 162 | Side magnet steel | 17 | Magnetic conductive board |
| 171 | Center magnetic conductive board | 172 | Side magnetic conductive board |
| 18 | Magnetic gap | 13 | Vibrating diaphragm |
| 131 | Vibrating diaphragm main body | 132 | Reinforcement part |
| 14 | Voice coil | 141 | Voice coil line |
| 142 | Skeleton | 141a | First winding |
| 141b | Second winding | 141c | Connecting wire |
| 142a | Intercommunicating pore | 11 | Shell |
| 12 | Protecgulum | 142b | Link slot |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is opposite between each component under a certain particular pose (as shown in the picture)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, will be understood that this technical side when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of voice coil and with the microphone of the voice coil.
Referring to figs. 1 to Fig. 4, in one embodiment of the utility model, microphone 1 be specially a midget microphone 1, certainly its
His type microphone 1 also applicable the technical solution of the utility model.As shown in Figure 1, midget microphone 1 generally includes magnetic circuit system
System, vibrational system and support system.Support system includes accommodating fixed magnetic circuit system and the shell 11 of vibrational system, with
And the protecgulum 12 of protect-ing frame structure is cooperatively formed with shell 11；Vibrational system includes vibrating diaphragm 13 and voice coil 14, vibrating diaphragm 13 and voice coil 14
Side far from magnetic circuit system connects, and vibrating diaphragm 13 is including vibrating diaphragm main body 131 and to adjust the reinforcement part 132 of acoustical behavior；Magnetic
Road system includes conductive magnetic yoke 15, magnet steel 16 and magnetic conductive board 17, and conductive magnetic yoke 15 is for fixed magnet and corrects the magnetic line of force, magnet steel 16
The side magnet steel 162 being arranged around center magnet steel 161 including center magnet steel 161 and in multi-magnetic circuit system, correspondingly, magnetic conductive board
17 include the center magnetic conductive board 171 that is set on center magnet steel 161 and are set in the while magnetic conductive board 172 on magnet steel 162, and are led
Yoke 15 is equipped with internal magnetic circuit part and exterior portion, formation magnetic gap 18 between internal magnetic circuit part and exterior portion, and sound
Circle 14 is then suspended in magnetic gap 18.
Wherein, voice coil 14 includes voice coil line 141 and skeleton 142；Voice coil line 141 include the first winding 141a and second around
Group 141b；Skeleton 142 is arranged in a ring, embedded between the first winding 141a and the second winding 141b；Skeleton 142, which is equipped with, to be connected
Intercommunicating pore 142a inside and outside logical voice coil 14.It should be noted that, skeleton 142 should be essentially identical with 14 profile of voice coil herein, and
This voice coil 14 can be applied to single magnetic structure and multipath magnetic circuit structure simultaneously.
Currently, with microphone 1, especially midget microphone 1 requires smaller and smaller in its size, while vibrating area
Under bigger, the trend of 14 bigger of voice coil, the magnetic gap 18 of microphone 1 is also smaller and smaller.At this point, 14 inside of voice coil is the benefit of vibrating diaphragm 13
The influence that the air of 132 lower section of strong portion passes through interior magnetic gap 18 to bring just will increase, such as 18 air-flow of magnetic gap is to air damping, vibration
The measurement ratio of the influences such as state increases obviously, bad to be easy to cause the excessively high acoustical behavior of total harmonic distortion.Compared to
The acoustical generator that the overwhelming majority still designs for conventional structure at present, in the present embodiment, since skeleton 142 is equipped with connection voice coil 14
Inside and outside intercommunicating pore 142a, intercommunicating pore 142a can be connected to inside and outside the voice coil 14 of acoustical generator, so as to make acoustical generator
Acoustical behavior more stablize, sounding effect is more preferably；Simultaneously as the presence of skeleton 142, effective heat dissipation area increases, from
And heat dissipation can be effectively improved；In addition, in the technical solution of the utility model, voice coil line 141 is wound in the upper of ring skeleton 142
Lower both sides, so as to make voice coil 14 highly increase, the depth for being inserted into magnetic gap 18 also accordingly increases, in this way, hair can be reduced effectively
The total harmonic distortion of sound device.This several respect integrates, and can greatly improve the acoustical behavior of microphone 1.
With reference to Fig. 3 and Fig. 4, in the present embodiment, specifically, intercommunicating pore 142a is nick shaped, and set on the upper of skeleton 142
Edge, intercommunicating pore 142a and the first winding 141a are enclosed venting channels, and certainly, the intercommunicating pore 142a of nick shaped can also be set
In the lower edge of skeleton 142, intercommunicating pore 142a and the second winding 141b are enclosed venting channels.Right the design is without being limited thereto,
In another embodiment as shown in Figures 5 to 7, intercommunicating pore 142a is in circumferentially closed shape, and intercommunicating pore 142a is individually formed ventilation
Channel, specifically, intercommunicating pore 142a are set to the middle part of skeleton 142 in axial direction, certainly, the intercommunicating pore 142a of circumferentially closed shape
The top or lower part of skeleton 142 in axial direction can also be set to.Herein it should be noted that, in the present embodiment, intercommunicating pore
142a is arranged on skeleton 142 preferably adjacent to vibrating diaphragm 13, i.e. when intercommunicating pore 142a is set to 142 top edge of skeleton or top, due to
Far from magnetic circuit system, for the space bigger of air circulation, therefore better acoustics improvement will be obtained.
In addition, in the present embodiment, the rectangular settings of intercommunicating pore 142a, certainly, in other embodiment, intercommunicating pore 142a
It can also be needed according to actual design and be arranged to a kind of or mutual combination in trapezoidal, round or other geometries
Deng.
With reference to Fig. 3 and Fig. 4, in the present embodiment, to reinforce gas circulation, further, the quantity of intercommunicating pore 142a is excellent
It is selected as multiple, and multiple intercommunicating pore 142a are along the circumferentially-spaced arrangement of skeleton 142.And in order to further make air in skeleton 142
Inside and outside circulation it is more smooth, it is preferable that be set to multiple intercommunicating pore 142a on the two relative side of skeleton 142 in symmetrical
Setting.Specifically as shown in figure 5,142 rectangular ring-type of skeleton, also can be in the annular of other shapes certainly, skeleton 142 has two-phase
To long side and short side, 4 intercommunicating pore 142a, and the interval distance between two adjacent intercommunicating pore 142a are respectively provided in each long side
From consistent, it is respectively provided with 2 intercommunicating pore 142a on each short side, i.e., is equipped with 12 intercommunicating pore 142a altogether on entire skeleton 142.
Further, total lengths of multiple intercommunicating pore 142a in the circumferential direction along skeleton 142 accounts for 142 total length of skeleton
Proportional region be preferably 40%~60%, it is thick that height of the intercommunicating pore 142a on the axial direction along skeleton 142 accounts for skeleton 142
The proportional region of degree is preferably 10%~30%.If it is appreciated that intercommunicating pore 142a open up it is too much and excessive, will be to skeleton
142 integral strength affects greatly, and then influences the vibration of voice coil 14 and vibrating diaphragm 13, and being unfavorable for the normal of microphone 1 makes
With；If intercommunicating pore 142a opens up too small and very few, preferable air circulation effect is not achieved；When the size of intercommunicating pore 142a
When can meet above-mentioned preferred scope with quantity, then it can obtain between 142 integral strength of preferable air circulation effect and skeleton
Balance.
Further, be strengthen voice coil 14 inside and outside airflow, in the present embodiment, skeleton 142 preferably by
Porous material is made.The porous material can be, but not limited to be porous ceramics, cellular glass or porous metals etc., particularly, bone
Frame 142 can be made of not only light but also firm honeycomb aluminum.Here, preferred be integrally formed of skeleton 142 is made, and porous material is also more
Be conducive to the heat dissipation of voice coil 14.
In the present embodiment as shown in Figure 4 and another embodiment as shown in Figures 5 to 7, voice coil line 141 further includes
The connecting wire 141c of the first winding 141a and the second winding 141b are connected, correspondingly, skeleton 142 is equipped with to accommodating connection
The link slot 142b of conducting wire 141c.Specifically, skeleton 142 include peripheral surface, inner peripheral surface and set on peripheral surface and inner peripheral surface it
Between and the first end face and second end face that are oppositely arranged, link slot 142b be arranged in peripheral surface and penetrate through first end face and second end
Face, first end face connect with the first winding 141a, and second end face connects with the second winding 141b, in this way, can be by the first winding
141a and the second winding 141b are easily connected, and connecting wire 141c is placed in link slot 142b without protruding
Appearance is impacted in 142 surface of skeleton.In the two embodiments, when skeleton 142 is rectangular cyclic annular, link slot
142b is preferably disposed on the short side of the peripheral surface of skeleton 142, and certainly, in other embodiment, link slot 142b can also be set
It is placed in the long side of the peripheral surface of skeleton 142, alternatively, link slot 142b is set on the inner peripheral surface of skeleton 142.Further,
Link slot 142b is inclined to set with respect to the axial direction of skeleton 142, and certainly, in other embodiment, link slot 142b can also be with
Skeleton 142 is arranged in an axially parallel mode, i.e. link slot 142b vertical connections first end face and second end face, but in the present embodiment,
Being obliquely installed when connecting wire 141c also being made to pass in and out link slot 142b for link slot 142b does not have to excessively at its import or export
Bending, to reduce the possibility of connecting wire 141c fractures, it is advantageously ensured that the normal work of voice coil 14.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
It is every under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of voice coil, which is characterized in that including：
Voice coil line, the voice coil line include the first winding and the second winding；And
Skeleton is arranged in a ring, and the skeleton is embedded between first winding and the second winding；The skeleton, which is equipped with, to be connected
Lead to the intercommunicating pore inside and outside the voice coil.
2. voice coil as described in claim 1, which is characterized in that the intercommunicating pore is nick shaped, the intercommunicating pore and described the
One winding or the second winding are enclosed venting channels；And/or the intercommunicating pore is in circumferentially closed shape, the intercommunicating pore independence shape
At venting channels.
3. voice coil as claimed in claim 1 or 2, which is characterized in that the quantity of the intercommunicating pore is multiple, and multiple intercommunicating pores
Along the circumferentially-spaced arrangement of the skeleton.
4. voice coil as claimed in claim 3, which is characterized in that multiple intercommunicating pores are total in the circumferential direction along the skeleton
The proportional region that length accounts for the skeleton total length is 40%~60%, and the intercommunicating pore is on the axial direction along the skeleton
Height account for the skeleton thickness proportional region be 10%~30%.
5. voice coil as claimed in claim 1 or 2, which is characterized in that the skeleton is made of porous material.
6. voice coil as claimed in claim 1 or 2, which is characterized in that the voice coil line further include connection first winding and
The connecting wire of second winding, the skeleton are equipped with to house the link slot of the connecting wire.
7. voice coil as claimed in claim 6, which is characterized in that the skeleton includes peripheral surface, inner peripheral surface and is set to described
Between peripheral surface and inner peripheral surface and the first end face and second end face that are oppositely arranged, the link slot setting the peripheral surface simultaneously
Penetrate through the first end face and second end face, the first end face connects with first winding, the second end face with it is described
Second winding connects.
8. voice coil as claimed in claim 7, which is characterized in that the axial direction of the relatively described skeleton of the link slot is inclined to be set
It sets.
9. a kind of microphone, including vibrational system and magnetic circuit system, which is characterized in that the vibrational system includes vibrating diaphragm and such as weighs
Profit requires the voice coil described in 1 to 8 any one, the vibrating diaphragm to be connect with side of the voice coil far from the magnetic circuit system.
10. microphone as claimed in claim 9, which is characterized in that the intercommunicating pore is on the skeleton close to the vibrating diaphragm
Setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629404.0U CN208063452U (en) | 2018-04-27 | 2018-04-27 | Voice coil and microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629404.0U CN208063452U (en) | 2018-04-27 | 2018-04-27 | Voice coil and microphone |
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| Publication Number | Publication Date |
|---|---|
| CN208063452U true CN208063452U (en) | 2018-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820629404.0U Active CN208063452U (en) | 2018-04-27 | 2018-04-27 | Voice coil and microphone |
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| CN (1) | CN208063452U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166905A (en) * | 2019-05-09 | 2019-08-23 | 瑞声光电科技(常州)有限公司 | The winding method of microphone device and its voice coil |
| CN110933570A (en) * | 2019-12-13 | 2020-03-27 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN112203196A (en) * | 2020-10-15 | 2021-01-08 | 精拓丽音科技（北京）有限公司 | Magnetic circuit structure and loudspeaker |
| WO2022126787A1 (en) * | 2020-12-16 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| CN117915248A (en) * | 2024-03-20 | 2024-04-19 | 瑞声光电科技(常州)有限公司 | Sounding device |
-
2018
- 2018-04-27 CN CN201820629404.0U patent/CN208063452U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166905A (en) * | 2019-05-09 | 2019-08-23 | 瑞声光电科技(常州)有限公司 | The winding method of microphone device and its voice coil |
| CN110933570A (en) * | 2019-12-13 | 2020-03-27 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN110933570B (en) * | 2019-12-13 | 2021-11-16 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN112203196A (en) * | 2020-10-15 | 2021-01-08 | 精拓丽音科技（北京）有限公司 | Magnetic circuit structure and loudspeaker |
| WO2022126787A1 (en) * | 2020-12-16 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| CN117915248A (en) * | 2024-03-20 | 2024-04-19 | 瑞声光电科技(常州)有限公司 | Sounding device |
| CN117915248B (en) * | 2024-03-20 | 2024-05-14 | 瑞声光电科技(常州)有限公司 | Sounding device |
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