CN204425652U - Electro-acoustic element - Google Patents
Electro-acoustic element Download PDFInfo
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- CN204425652U CN204425652U CN201520050989.7U CN201520050989U CN204425652U CN 204425652 U CN204425652 U CN 204425652U CN 201520050989 U CN201520050989 U CN 201520050989U CN 204425652 U CN204425652 U CN 204425652U
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- Prior art keywords
- voice coil
- coil loudspeaker
- loudspeaker voice
- electro
- acoustic element
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- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000007373 indentation Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 8
- 239000012528 membrane Substances 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 12
- 230000010355 oscillation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relate to a kind of electro-acoustic element, its involving vibrations system and magnetic circuit system, described vibrational system comprises vibrating diaphragm and drives the first voice coil loudspeaker voice coil of vibrating diaphragm, described magnetic circuit ties up to unite to install on the direction of vibrational system and is fixed with one second voice coil loudspeaker voice coil, described second voice coil loudspeaker voice coil ringwise, and to be centered around outside the first voice coil loudspeaker voice coil and and the first voice coil loudspeaker voice coil interval arrange, described vibrating diaphragm comprise be positioned at central authorities ball top, around the ring portion at ball top and the edge part that is connected with ring portion, the orthographic projection of described second voice coil loudspeaker voice coil on vibrating diaphragm is positioned on edge part at least partly.Electro-acoustic element of the present utility model, under the prerequisite with communication function, does not affect vibration of membrane of shaking, and improves the reliability of product.
Description
[technical field]
The utility model relates to a kind of electro-acoustic element, especially a kind of electro-acoustic element with communication function.
[background technology]
Along with the development of portable consumer electronics produce market, electro-acoustic element, the electro-acoustic element especially with communication functions such as hearing aid energy, NFC is widely used.
Existing electro-acoustic element, in order to obtain the functions such as hearing aid, usually for it adds the second voice coil loudspeaker voice coil.Second voice coil loudspeaker voice coil of the electro-acoustic element of prior art is arranged on the downside in surround portion usually, and such structure can limit the Oscillation Amplitude of vibrating diaphragm, or collides with vibrating diaphragm and affect the reliability of product.
Therefore, the electro-acoustic element that a kind of band communication function is newly provided for above-mentioned shortcoming is necessary.
[utility model content]
The purpose of this utility model is the deficiency solving said structure, and provides a kind of electro-acoustic element not affecting reliability with communication function.
According to the problems referred to above, devise a kind of electro-acoustic element, the magnetic circuit system of its involving vibrations system and driving vibrational system sounding, described vibrational system comprises vibrating diaphragm and drives the first voice coil loudspeaker voice coil of vibrating diaphragm, described magnetic circuit system is fixed with one second voice coil loudspeaker voice coil installing on the direction of vibrational system, described second voice coil loudspeaker voice coil ringwise, and to be centered around outside the first voice coil loudspeaker voice coil and and the first voice coil loudspeaker voice coil interval arrange, described vibrating diaphragm comprises the ball top being positioned at central authorities, around the ring portion at ball top and the edge part that is connected with ring portion, the orthographic projection of described second voice coil loudspeaker voice coil on vibrating diaphragm is positioned on edge part at least partly.
Preferably, the secondary magnet steel that described magnetic circuit system comprises main magnet steel, arranges around main magnet steel, described secondary magnet steel is provided with the holddown groove installed and fix the second voice coil loudspeaker voice coil.
Preferably, described magnetic circuit system comprises the magnetic bowl of magnet steel and the fixing magnet steel of collecting, and described magnetic bowl is provided with to hold installs the holddown groove fixing the second voice coil loudspeaker voice coil.
Preferably, described electro-acoustic element be provided be connected with magnetic circuit system for installing fixing listening help circle supporting part.
Preferably, described voice coil loudspeaker voice coil supporting part is one surround the frame of receiving space by sidewall, described magnetic circuit system collecting is fixed in described receiving space, described sidewall comprises upper surface, the lower surface relative with upper surface and the fixed part for fixing the second voice coil loudspeaker voice coil from the downward surface indentation of upper surface, described fixed part comprises the fixation wall extended to lower surface from upper surface and the stationary plane extended to receiving space from described fixation wall, and described fixed part communicates with receiving space.
Preferably, described second voice coil loudspeaker voice coil is circulus, and comprise inner side and outside on the other side, described outside and described fixation wall abut against.
Preferably, described fixed part is provided with self-retaining towards the holddown groove caved in away from vibrating diaphragm direction, and described second voice coil loudspeaker voice coil is fastened in this holddown groove.
Preferably, the edge part of described vibrating diaphragm strides across the upper surface that described second voice coil loudspeaker voice coil is fixed on described sidewall.
Preferably, described voice coil loudspeaker voice coil supporting part is an annular shim, described pad be provided with from pad away from magnetic circuit system the downward surface indentation of upper surface for installing the holddown groove fixing the second voice coil loudspeaker voice coil, described pad is fixed between described magnetic circuit system and vibrational system.
Second voice coil loudspeaker voice coil being provided with band hearing-aid function of electro-acoustic element of the present utility model, the projection of described second voice coil loudspeaker voice coil on vibrating diaphragm is positioned at the edge part of vibrating diaphragm, under the prerequisite with communication function, does not affect vibration of membrane of shaking, and improves the reliability of product.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional exploded view of the utility model electro-acoustic element;
Fig. 2 is the cutaway view of the utility model electro-acoustic element;
Fig. 3 is the incorporating aspects schematic diagram of the utility model electro-acoustic element;
Fig. 4 is the combination schematic diagram of the another kind of execution mode of the utility model electro-acoustic element.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
As shown in Figure 1, for the three-dimensional exploded view of the utility model electro-acoustic element, a kind of electro-acoustic element 100 with hearing-aid function, it comprises magnetic circuit system 1 and vibrational system 2, the first voice coil loudspeaker voice coil 22 that described vibrational system comprises vibrating diaphragm 21 and drives vibrating diaphragm 21 to vibrate, electro-acoustic element 100 comprises one around second voice coil loudspeaker voice coil 4 and of the first voice coil loudspeaker voice coil 22 further for carrying and installing the voice coil loudspeaker voice coil supporting part of fixing described second voice coil loudspeaker voice coil 4.Wherein, described first voice coil loudspeaker voice coil 22 is for driving voice coil loudspeaker voice coil.Described second voice coil loudspeaker voice coil 4 can for having hearing-aid function, also can for having the voice coil loudspeaker voice coil of other functions such as NFC.In the present embodiment, described second voice coil loudspeaker voice coil 4 is listening help circle, makes described electro-acoustic element have hearing aid effect.
In the present embodiment, described voice coil loudspeaker voice coil supporting part is one have the frame 3 being surrounded receiving space by sidewall 31.As depicted in figs. 1 and 2, described frame 3 comprises the receiving space in order to accommodate magnetic circuit system 1 surrounded by sidewall 31, described sidewall 31 comprises upper surface 311 and lower surface on the other side (non-label), described sidewall 31 has the fixed part 32 from the downward surface direction depression of upper surface 311, and described fixed part 32 is through with receiving space.Described fixed part 32 comprises the fixation wall 322 extended from the downward surface direction of described upper surface 311 and the stationary plane 321 extended to receiving space from described fixation wall 322.Described second voice coil loudspeaker voice coil 4 is positioned on described stationary plane 321.Preferably, described stationary plane is also provided with self-retaining face 321 to the holddown groove 323 caved in away from vibrating diaphragm direction, described second voice coil loudspeaker voice coil 4 to be fastened in this holddown groove 323.Described voice coil loudspeaker voice coil 4 is circulus, and comprise inner side 41 and outside on the other side 42, outside 42 is connected in fixation wall 322.
Magnetic circuit system 1 comprises the magnetic bowl 13 be contained in frame 3, be fixed on the magnet steel 11 of magnetic bowl 13 and be attached at the pole piece 12 on magnet steel 11 surface.It should be noted that, described magnetic bowl can be bowl-shape, also can for having slab construction or being combined, as long as the element with the base plate of placement magnet portion (as magnet steel) all can be referred to as magnetic bowl by side plate that is dull and stereotyped and that extended by flat board.In the present embodiment, described magnetic bowl comprises flat board 131 and the side plate 132 from described dull and stereotyped 131 bending extensions.Described magnet steel 11 is positioned at the described central authorities of dull and stereotyped 131.Described dull and stereotyped 131 and side plate 132 be permeability magnetic material, being uniformly distributed of magnetic field can be ensured.Magnetic gap (non-label) is formed between described magnet steel 11 and the side plate 132 of magnetic bowl 13.In other modes selectable, described magnetic circuit system 1 also can be the system with multiple magnet steel, being positioned at the main magnet steel of central authorities and the secondary magnet steel around main magnet steel, also can implementing as having.
Vibrational system 2 comprises the vibrating diaphragm 21 be immobilizated in frame 3 and the first voice coil loudspeaker voice coil 22 driving vibrating diaphragm 21 to vibrate.Described first voice coil loudspeaker voice coil 22 inserts in magnetic gap.Described vibrating diaphragm 21 comprise be positioned at central authorities ball top 211, around and the ring portion 212 be connected with described ball top 211 and the edge part 213 be connected with described ring portion 212.Described edge part 213 is overlapped on the sidewall 31 of described frame 3.In the present embodiment, ball top is slab construction and is connected with the first voice coil loudspeaker voice coil.Certainly, in other execution modes selectable, described ball top can be also other structures such as circular arc, and ball top for be separated and the structure be connected, also can be able to be structure as a whole with ring portion.
Vibrating diaphragm can also be provided with the oscillating plate playing the effect of reinforcement diaphragm oscillations be covered on described ball top.In the present embodiment, described vibrational system also comprises the protecgulum 23 be covered on vibrating diaphragm 21, and it comprises the vocal hole 231 run through on it.
As shown in Figure 3, be the utility model, the combination schematic diagram of the second voice coil loudspeaker voice coil, the first voice coil loudspeaker voice coil and vibrating diaphragm.Described second voice coil loudspeaker voice coil 4 is around described first voice coil loudspeaker voice coil 22, the inner side 41 of described second voice coil loudspeaker voice coil is relative with the outside of the first voice coil loudspeaker voice coil 22 and be separated by and arrange, described ring portion 212 is between described second voice coil loudspeaker voice coil 4 and the first voice coil loudspeaker voice coil 22, second projection of voice coil loudspeaker voice coil 22 on vibrating diaphragm direction is positioned on 211, described ball top, and described second voice coil loudspeaker voice coil 22 is connected with ball top 211 and drives diaphragm oscillations, second voice coil loudspeaker voice coil 4 and ball top both can for be directly connected, also indirectly can be connected by centring disk etc., in the present embodiment, for being directly connected.Second projection of voice coil loudspeaker voice coil 4 on vibrating diaphragm is positioned on edge part 213.Second voice coil loudspeaker voice coil 4 to be positioned on fixed part 32 and to be close to described fixation wall 322 and arranges.The edge part 213 of described vibrating diaphragm 21 strides across the upper surface 311 that described second voice coil loudspeaker voice coil 4 is fixed on frame sidewall, in the present embodiment, for being adhesively fixed.Such structure, makes the second voice coil loudspeaker voice coil be sticked as far as possible on frame sidewall, effectively increases the size of the second voice coil loudspeaker voice coil, add the swept area of the second voice coil loudspeaker voice coil.In addition, because the second voice coil loudspeaker voice coil is positioned on the downside of edge part, avoid ring portion, considerably reduce the impact on diaphragm oscillations, also enable the second voice coil loudspeaker voice coil be positioned as close to protecgulum, can measuring distance be effectively reduced in product test link, improve measuring accuracy.
Described electro-acoustic element 100 is also provided with the conducting terminal 5 embedding frame 3.Described conducting terminal 5 one end is connected with the second voice coil loudspeaker voice coil 4 with described first voice coil loudspeaker voice coil 22, and the other end is connected with extraneous power supply.In the present embodiment, described first voice coil loudspeaker voice coil is connected to same conducting terminal with described second voice coil loudspeaker voice coil and is connected with external power source by conducting terminal, in other execution modes selectable, also multiple conducting terminal can be had, described first voice coil loudspeaker voice coil is connected with external power source respectively with described second voice coil loudspeaker voice coil, also can implement.
Certainly, above are only the utility model preferably embodiment, in other execution modes selectable, also can not frame be set, be illustrated in figure 4 the another kind of execution mode of the utility model, it is roughly the same with execution mode in first, electro-acoustic element 200, the magnetic circuit system of its involving vibrations system and driving vibrational system, described magnetic circuit system comprises main magnet steel 201 and the secondary magnet steel 202 around main magnet steel, described voice coil loudspeaker voice coil supporting part is be positioned at the annular shim 204 be fixed on magnetic circuit system, this pad is arranged between described magnetic circuit system and vibrational system, in the present embodiment, for being fixed on secondary magnet steel 202, certainly, be not limited to this, namely magnetic circuit system can be single magnetic steel structure also can be many magnetic steel structures, described magnetic circuit system also can be provided with the magnetic bowl of an accommodation magnet steel again, described pad is arranged on magnetic bowl and also can implements.In present embodiment, vibrational system is overlapped on the upper surface of described pad away from magnetic circuit system, it is arranged the holddown groove for fixing the second voice coil loudspeaker voice coil from the downward surface direction depression of upper surface.Vibrating diaphragm strides across the upper surface that the second voice coil loudspeaker voice coil is fixed on described pad.Its principle is roughly the same with the first execution mode.
In enforceable another kind of execution mode, also can not pad be set, described voice coil loudspeaker voice coil supporting part can be a part for magnetic circuit, concrete, for a part for magnetic bowl, in this kind of execution mode, described magnetic bowl is the bowl structure comprising diapire and sidewall, vibrational system is retained on the sidewall of magnetic bowl, the sidewall of described magnetic bowl is provided with the holddown groove for fixing the second voice coil loudspeaker voice coil to magnetic bowl diapire direction depression.Vibrating diaphragm strides across the upper surface that the second voice coil loudspeaker voice coil is fixed on described magnetic bowl.Its principle is all roughly the same with above-mentioned execution mode.In addition, described voice coil loudspeaker voice coil can also be installed and be fixed on secondary magnet steel, concrete, can be provided with the voice coil loudspeaker voice coil holddown groove caved in magnetic circuit system bottom direction from secondary magnet steel on secondary magnet steel, and described second voice coil loudspeaker voice coil card is established and is fixed on this holddown groove.
Second voice coil loudspeaker voice coil being provided with band communication function of electro-acoustic element of the present utility model, the projection of described second voice coil loudspeaker voice coil on vibrating diaphragm is positioned at the edge part of vibrating diaphragm, under the prerequisite with communication function, does not affect vibration of membrane of shaking, and improves the reliability of product.
It should be noted that, in description of the present utility model, it will be appreciated that, term " on ", the orientation of the instruction such as D score or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Specific features, structure, material or feature that the description of " embodiment ", " execution mode " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.When not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Above-described is only better embodiment of the present utility model; it should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite not departing from the utility model creation design; improvement can also be made, but these all belong to protection range of the present utility model.
Claims (9)
1. an electro-acoustic element, the magnetic circuit system of its involving vibrations system and driving vibrational system sounding, described vibrational system comprises vibrating diaphragm and drives the first voice coil loudspeaker voice coil of vibrating diaphragm, it is characterized in that: described magnetic circuit system is fixed with one second voice coil loudspeaker voice coil installing on the direction of vibrational system, described second voice coil loudspeaker voice coil ringwise, and to be centered around outside the first voice coil loudspeaker voice coil and and the first voice coil loudspeaker voice coil interval arrange, described vibrating diaphragm comprises the ball top being positioned at central authorities, around the ring portion at ball top and the edge part that is connected with ring portion, the orthographic projection of described second voice coil loudspeaker voice coil on vibrating diaphragm is positioned on edge part at least partly.
2. electro-acoustic element according to claim 1, is characterized in that: the secondary magnet steel that described magnetic circuit system comprises main magnet steel, arranges around main magnet steel, and described secondary magnet steel is provided with the holddown groove installed and fix the second voice coil loudspeaker voice coil.
3. electro-acoustic element according to claim 1, is characterized in that: described magnetic circuit system comprises the magnetic bowl of magnet steel and the fixing magnet steel of collecting, and described magnetic bowl is provided with the holddown groove installed and fix the second voice coil loudspeaker voice coil.
4. electro-acoustic element according to claim 1, is characterized in that: described electro-acoustic element be provided be connected with magnetic circuit system for installing fixing listening help circle supporting part.
5. electro-acoustic element according to claim 4, it is characterized in that: described voice coil loudspeaker voice coil supporting part is one surround the frame of receiving space by sidewall, described magnetic circuit system collecting is fixed in described receiving space, described sidewall comprises upper surface, the lower surface relative with upper surface and the fixed part for fixing the second voice coil loudspeaker voice coil from the downward surface indentation of upper surface, described fixed part comprises the fixation wall extended to lower surface from upper surface and the stationary plane extended to receiving space from described fixation wall, and described fixed part communicates with receiving space.
6. electro-acoustic element according to claim 5, is characterized in that: described second voice coil loudspeaker voice coil is circulus, and comprise inner side and outside on the other side, the fixation wall of described outside and described frame abuts against.
7. electro-acoustic element according to claim 5, is characterized in that: the fixed part of described frame is provided with self-retaining towards the holddown groove caved in away from vibrating diaphragm direction, and described second voice coil loudspeaker voice coil is fastened in this holddown groove.
8. electro-acoustic element according to claim 5, is characterized in that: the edge part of described vibrating diaphragm strides across the upper surface that described second voice coil loudspeaker voice coil is fixed on the sidewall of described frame.
9. electro-acoustic element according to claim 1, it is characterized in that: described voice coil loudspeaker voice coil supporting part is an annular shim, described pad be provided with from pad away from magnetic circuit system the downward surface indentation of upper surface for installing the holddown groove fixing the second voice coil loudspeaker voice coil, described pad is fixed between described magnetic circuit system and vibrating diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050989.7U CN204425652U (en) | 2015-01-23 | 2015-01-23 | Electro-acoustic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050989.7U CN204425652U (en) | 2015-01-23 | 2015-01-23 | Electro-acoustic element |
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| Publication Number | Publication Date |
|---|---|
| CN204425652U true CN204425652U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520050989.7U Expired - Fee Related CN204425652U (en) | 2015-01-23 | 2015-01-23 | Electro-acoustic element |
Country Status (1)
| Country | Link |
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| CN (1) | CN204425652U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108111946A (en) * | 2015-06-29 | 2018-06-01 | 广东欧珀移动通信有限公司 | Vibration sounding structure and terminal |
| CN113473333A (en) * | 2021-06-28 | 2021-10-01 | Oppo广东移动通信有限公司 | Electroacoustic device and electronic apparatus |
| WO2021223263A1 (en) * | 2020-05-08 | 2021-11-11 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022007003A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2015
- 2015-01-23 CN CN201520050989.7U patent/CN204425652U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108111946A (en) * | 2015-06-29 | 2018-06-01 | 广东欧珀移动通信有限公司 | Vibration sounding structure and terminal |
| CN108111946B (en) * | 2015-06-29 | 2019-08-20 | Oppo广东移动通信有限公司 | Vibration sounding structure and terminal |
| WO2021223263A1 (en) * | 2020-05-08 | 2021-11-11 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022007003A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN113473333A (en) * | 2021-06-28 | 2021-10-01 | Oppo广东移动通信有限公司 | Electroacoustic device and electronic apparatus |
| CN113473333B (en) * | 2021-06-28 | 2023-04-11 | Oppo广东移动通信有限公司 | Electroacoustic device and electronic apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 |