CN204539453U - Sound-producing device - Google Patents
Sound-producing device Download PDFInfo
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- CN204539453U CN204539453U CN201520185457.4U CN201520185457U CN204539453U CN 204539453 U CN204539453 U CN 204539453U CN 201520185457 U CN201520185457 U CN 201520185457U CN 204539453 U CN204539453 U CN 204539453U
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Abstract
The utility model discloses a kind of sound-producing device, comprise shell, magnetic circuit system and the vibrational system with inner chamber, shell comprises bottom and sidepiece, magnetic circuit system comprises the frame and bond with frame successively fixing magnet and washer that are fixed on outer casing bottom, vibrational system comprises vibrating diaphragm and to bond fixing voice coil loudspeaker voice coil with vibrating diaphragm, voice coil loudspeaker voice coil comprises voice coil leads, the peristome of frame is provided with the breach of material formation, breach is positioned at the position below voice coil leads, voice coil leads passes from indentation, there, and the part material reducing of shell sidepiece diaphone circle lead-in wire below is arranged.Sound-producing device of the present utility model, can increase the oscillation space of product, ensures the intensity of shell, is also convenient to material loading assembling simultaneously.
Description
Technical field
The utility model relates to electroacoustic field, is specifically related to a kind of sound-producing device.
Background technology
Phonation unit is the part of design comparison complexity in the electro-acoustic elements such as earphone, is also the critical component being related to acoustical behavior.The operation principle of moving-coil earphone is substantially identical with moving-coil speaker, and after audio signal input voice coil loudspeaker voice coil, under the effect of the electromagnetic field of constantly change, the change that voice coil loudspeaker voice coil is subjected to displacement, drives connected diaphragm oscillations, thus instigates air sounding.Along with the development of electronic technology, have higher requirement to the performance of earphone phonation unit, demand fulfillment is at the reliability requirement of long-term high-power lower work.In addition, Current electronic product trend toward miniaturization is more obvious, and under the prerequisite that size is less, the vibration displacement of product is increasing, and the inner space of product is really limited.As shown in Figure 4, be in voice coil leads 51 and shell 1 close together of below, now, when product is at larger operating at voltages, its displacement is comparatively large, and voice coil loudspeaker voice coil 51 goes between and easily touches shell 1, thus causes product HOHD (high order harmonic component distortion) bad.But because the MCO (apparent size management and control) of product is limited, the mode not by increasing external dimensions increases oscillation space.
As shown in Figures 2 and 3, general circular sound-producing device, frame 2 designs four breach for the location with shell, now can ensure that BL (stress-electric coupling coefficient) is symmetrical.But the close together of voice coil leads 51 and frame 2, the sensitivity as fruit product is higher, and voice coil leads 51 is also easy to touch frame 2, and product HOHD (high order harmonic component distortion) can be caused equally bad.If but the position of magnetic circuit is reduced, be then equivalent to the position of voice coil loudspeaker voice coil 5 in magnetic circuit and there occurs change, can not ensure that the BL (stress-electric coupling coefficient) of product is symmetrical, the total harmonic distortion curve of product can be affected.
Therefore, be necessary to improve the structure of existing sound-producing device, under the prerequisite that product size is less, increase the oscillation space of product, optimizing product performance.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of sound-producing device, by the improvement to frame and shell mechanism, increases the oscillation space of product.
To achieve these goals, the utility model by the following technical solutions: a kind of sound-producing device, comprises shell, magnetic circuit system and the vibrational system with inner chamber; Described shell comprises bottom and sidepiece; Described magnetic circuit system comprises the frame and bond with described frame successively fixing magnet and washer that are fixed on described outer casing bottom; Described vibrational system comprises vibrating diaphragm and to bond fixing voice coil loudspeaker voice coil with described vibrating diaphragm; Described voice coil loudspeaker voice coil comprises voice coil leads, and wherein, the peristome of described frame is provided with the breach of material formation; Described breach is positioned at the position below described voice coil leads, and described voice coil leads passes from described indentation, there; Part material reducing below the corresponding described voice coil leads of described shell sidepiece is arranged.
Improve as one, described voice coil leads includes line end and leading-out terminal; The peristome of described frame is provided with two breach laid respectively at below described lead-in wire terminal and described leading-out terminal.
Improve as one, the peristome of described frame is also provided with another breach, and is uniformly distributed axisymmetricly with two breach below described voice coil leads.
Improve as one, the quantity of the peristome breach of described frame is set to three.
Improve as one, described shell injection mo(u)lding; The injection molding material of the part below the corresponding described voice coil leads of described shell sidepiece is less than the injection molding material of described other parts of shell sidepiece.
Improve as one, described frame cylindrically; The cross section of described magnet and described washer is circular.
Improve as one, the upside in described vibrating diaphragm centre position is combined with reinforcement part; The becket supporting described vibrating diaphragm is fixed with on the downside of described vibrating diaphragm; Described vibrating diaphragm comprises edge part and is incorporated into the ring portion inside described edge part; Described edge part is corresponding with described becket fixing.
Improve as one, described washer is provided with pair of conductive part; Described voice coil leads and described electric-conductor are electrically connected.
Improve as one, the sidepiece of described shell is provided with the phonate hole of described sound-producing device; The position of the corresponding described phonate hole of described shell is coated with damping.
After have employed technique scheme, the beneficial effect of the utility model generating means is:
Due to sound-producing device of the present utility model, frame peristome is provided with breach, and two breach lay respectively at the position below voice coil loudspeaker voice coil lead-in wire terminal and leading-out terminal, and voice coil leads passes from indentation, there, the oscillation space of voice coil leads bottom can be increased like this, the loss of product sensitivity can not be caused simultaneously.
Due to sound-producing device of the present utility model, part only for shell sidepiece diaphone circle lead-in wire below carries out material reducing setting, and do not need all to carry out reduction processing to the injection molding material of whole shell mechanism, namely only have the injection molding material of the part of shell sidepiece diaphone circle lead-in wire below to be less than the injection molding material of other parts of shell sidepiece, can ensure that product also ensures thickness and the intensity of shell itself while obtaining larger oscillation space.
Because the peristome of frame is also provided with another breach, and this breach and two breach be positioned at below voice coil leads are uniformly distributed axisymmetricly, therefore do not need to distinguish direction, convenient operation when carrying out material loading assembling.
In sum, sound-producing device of the present utility model, by arranging three breach to frame, and carries out material reducing process for the part below the corresponding voice coil leads of shell, can increase the oscillation space of product, ensure the sensitivity of product and the intensity of shell simultaneously.
Accompanying drawing explanation
Fig. 1 is the explosive view of the utility model sound-producing device structure;
Fig. 2 is the magnetic circuit system of traditional generating means and the assembling schematic diagram of voice coil loudspeaker voice coil;
Fig. 3 is the cutaway view of Fig. 2 along A-A line;
Fig. 4 is the cutaway view of traditional sound-producing device structure;
Fig. 5 is the magnetic circuit system of the utility model sound-producing device and the assembling schematic diagram of voice coil loudspeaker voice coil;
Fig. 6 is the cutaway view of Fig. 5 along B-B line;
Fig. 7 is the cutaway view of the utility model sound-producing device structure;
Fig. 8 is the stereogram of the utility model generating means structure;
Reference numeral wherein comprises: 1, shell, and 2, frame, 21, breach, 3, magnet, 4, washer, 5, voice coil loudspeaker voice coil, 51, voice coil leads, 6, vibrating diaphragm, 61, edge part, 62, ring portion, 7, reinforcement part, 8, becket, 9, damping, 10, electric-conductor.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model content in detail:
Embodiment:
Consult shown in Fig. 1, sound-producing device of the present utility model comprises shell 1, magnetic circuit system and the vibrational system with inner chamber.Wherein, shell 1 comprises bottom and sidepiece, and magnetic circuit system comprises the frame 2 and bond with frame 2 successively fixing magnet 3 and washer 4 that are fixed on bottom shell 1; Vibrational system comprises vibrating diaphragm 6 and to bond fixing voice coil loudspeaker voice coil 5 with vibrating diaphragm 6, and voice coil loudspeaker voice coil 5 comprises voice coil leads 51.During enforcement, form magnetic gap between the sidepiece of shell 1 and magnetic circuit system, voice coil leads 51 connects up in this magnetic gap.
Consult shown in Fig. 5, the peristome of frame 2 is provided with the breach 21 of material formation, and breach 21 is positioned at the position below voice coil leads 51, and voice coil leads 51 passes from breach 21.Consult shown in Fig. 6, distance between voice coil leads 51 bottom and frame 2 is L2, compared to the existing design shown in Fig. 3, L2 is obviously greater than L1, breach 21 by the peristome of frame 2 is arranged at the lower position of voice coil leads 51, increase the oscillation space of voice coil leads 51, ensure that product is when larger operating at voltages, voice coil leads 51 can not touch frame 2.
Consult shown in Fig. 7, position material reducing below the corresponding voice coil leads 51 of shell 1 sidepiece is arranged, and that is, the injection molding material of this part will be less than the injection molding material of other parts of shell 1, carry out reduction processing, compared to the existing design shown in Fig. 4, increase the distance to shell 1 below voice coil leads 51, namely in Fig. 7 shown in H, same, product, when larger operating at voltages, can increase oscillation space, avoids voice coil leads 51 to touch shell 1.
Can find out, below the corresponding voice coil leads 51 of frame 2, breach is set, shell 1 corresponding voice coil leads 51 inferior portion material reducing process, above, all can increase the oscillation space of product, also ensure that intensity and the thickness of shell 1 structure itself simultaneously.
Preferably, voice coil leads 51 includes line end and leading-out terminal, and two breach 21 of the peristome setting of frame 2 lay respectively at the below of lead-in wire terminal and leading-out terminal.
Preferably, as shown in Figure 8, the peristome of frame 2 is also provided with another breach, and is uniformly distributed axisymmetricly with two breach below voice coil leads 51, like this when product carries out material loading assembling, can distinguish direction, operation of being more convenient for.
Preferably, the quantity of the peristome breach 21 of frame 2 is set to three.
Preferably, cylindrically, the cross section of magnet 3 and washer 4 is circular to frame 2.
Preferably, the upside in vibrating diaphragm 6 centre position is combined with reinforcement part 7, is fixed with the becket 8 supporting vibrating diaphragm 6 on the downside of vibrating diaphragm 6, the ring portion 62 that vibrating diaphragm 6 comprises edge part 61 and is incorporated into inside edge part 61, and edge part 61 is corresponding with becket 8 fixing.
Preferably, washer 4 is provided with pair of conductive part 10, electric-conductor 10 and voice coil leads 51 are electrically connected, and the current signal that can be received passes to voice coil loudspeaker voice coil 5.
Preferably, the sidepiece of shell 1 is provided with the phonate hole of sound-producing device, and the position of the corresponding phonate hole of shell 1 is coated with damping 9, can be dust-proof.
These are only the utility model case study on implementation, be not limited to the utility model, as long as those of ordinary skill in the art modify or change according to the equivalence that the utility model institute disclosure is done, all should include in the protection range recorded in claims.
Claims (9)
1. a sound-producing device, comprises shell, magnetic circuit system and the vibrational system with inner chamber; Described shell comprises bottom and sidepiece; Described magnetic circuit system comprises the frame and bond with described frame successively fixing magnet and washer that are fixed on described outer casing bottom; Described vibrational system comprises vibrating diaphragm and to bond fixing voice coil loudspeaker voice coil with described vibrating diaphragm; Described voice coil loudspeaker voice coil comprises voice coil leads, it is characterized in that: the peristome of described frame is provided with the breach of material formation; Described breach is positioned at the position below described voice coil leads, and described voice coil leads passes from described indentation, there; Part material reducing below the corresponding described voice coil leads of described shell sidepiece is arranged.
2. sound-producing device according to claim 1, is characterized in that: described voice coil leads includes line end and leading-out terminal; The peristome of described frame is provided with two breach laid respectively at below described lead-in wire terminal and described leading-out terminal.
3. sound-producing device according to claim 2, is characterized in that: the peristome of described frame is also provided with another breach, and is uniformly distributed axisymmetricly with two breach below described voice coil leads.
4. sound-producing device according to claim 3, is characterized in that: the quantity of the peristome breach of described frame is set to three.
5. sound-producing device according to claim 1, is characterized in that: described shell injection mo(u)lding; The injection molding material of the part below the corresponding described voice coil leads of described shell sidepiece is less than the injection molding material of described other parts of shell sidepiece.
6. sound-producing device according to claim 4, is characterized in that: described frame cylindrically; The cross section of described magnet and described washer is circular.
7. sound-producing device according to claim 1, is characterized in that: the upside in described vibrating diaphragm centre position is combined with reinforcement part; The becket supporting described vibrating diaphragm is fixed with on the downside of described vibrating diaphragm; Described vibrating diaphragm comprises edge part and is incorporated into the ring portion inside described edge part; Described edge part is corresponding with described becket fixing.
8. sound-producing device according to claim 1, is characterized in that: described washer is provided with pair of conductive part; Described voice coil leads and described electric-conductor are electrically connected.
9. sound-producing device according to claim 1, is characterized in that: the sidepiece of described shell is provided with the phonate hole of described sound-producing device; The position of the corresponding described phonate hole of described shell is coated with damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185457.4U CN204539453U (en) | 2015-03-30 | 2015-03-30 | Sound-producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185457.4U CN204539453U (en) | 2015-03-30 | 2015-03-30 | Sound-producing device |
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| Publication Number | Publication Date |
|---|---|
| CN204539453U true CN204539453U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520185457.4U Active CN204539453U (en) | 2015-03-30 | 2015-03-30 | Sound-producing device |
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| CN (1) | CN204539453U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587604A (en) * | 2018-11-08 | 2019-04-05 | 瑞声科技(新加坡)有限公司 | Loudspeaker and its assemble method |
| WO2019134434A1 (en) * | 2018-01-08 | 2019-07-11 | 声电电子科技(惠州)有限公司 | Miniature speaker |
| CN110572757A (en) * | 2019-09-29 | 2019-12-13 | 歌尔股份有限公司 | Magnetizer and sound production device |
| WO2022006966A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2015
- 2015-03-30 CN CN201520185457.4U patent/CN204539453U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019134434A1 (en) * | 2018-01-08 | 2019-07-11 | 声电电子科技(惠州)有限公司 | Miniature speaker |
| CN109587604A (en) * | 2018-11-08 | 2019-04-05 | 瑞声科技(新加坡)有限公司 | Loudspeaker and its assemble method |
| CN110572757A (en) * | 2019-09-29 | 2019-12-13 | 歌尔股份有限公司 | Magnetizer and sound production device |
| WO2022006966A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |