CN204616078U - Speaker unit - Google Patents
Speaker unit Download PDFInfo
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- CN204616078U CN204616078U CN201520246883.4U CN201520246883U CN204616078U CN 204616078 U CN204616078 U CN 204616078U CN 201520246883 U CN201520246883 U CN 201520246883U CN 204616078 U CN204616078 U CN 204616078U
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- fixed part
- speaker unit
- voice coil
- pad
- piezoelectric patches
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Abstract
The utility model discloses a kind of speaker unit, involving vibrations system, the auxiliary system of magnetic circuit system and the fixing described magnetic circuit system of collecting and vibrational system, described vibrational system comprises the vibrating diaphragm combined, centring disk and voice coil loudspeaker voice coil, described centring disk comprises the first fixed part, be arranged at the second fixed part in described first fixed part and connect the linking arm of described first fixed part and described second fixed part, and: described second fixed part center is provided with piezoelectric patches, the corresponding described piezoelectric patches of described centring disk is provided with the first pad, described piezoelectric patches is electrically connected with described first pad.Speaker unit of the present utility model, the audio signal that the signal that piezoelectric patches sends sends with voice coil loudspeaker voice coil-vibrating diaphragm mixes, and effectively improves the medium-high frequency effect of speaker unit, improves the acoustical behavior of speaker unit, therefore, the utility model speaker unit has the good advantage of acoustical behavior.
Description
Technical field
The utility model relates to electroacoustic field, especially relates to the speaker unit that a kind of medium-high frequency performance is good.
Background technology
Along with the development of science and technology, portable electron device gets more and more people's extensive concerning, and speaker unit, as the main phonation unit of portable electronic terminal, directly affects the result of use of portable electron device.Along with the raising day by day that people require portable electronic terminal audio frequency effect, the acoustical behavior of speaker unit more and more receives the concern of industry.
The speaker unit of prior art, involving vibrations system, magnetic circuit system and auxiliary system.The fixing vibrational system of auxiliary system collecting and magnetic circuit system, vibrational system comprises voice coil loudspeaker voice coil, vibrating diaphragm and centring disk, and centring disk center is provided with reinforcement part; Magnetic circuit system comprises magnet and magnetic conductive part, and magnetic circuit system is provided with magnetic gap, and voice coil loudspeaker voice coil is arranged in magnetic gap, utilizes the curent change of conduction voice coil loudspeaker voice coil in magnetic field and is subject to Lorentz force vibration, driving diaphragm oscillations sounding.The speaker unit of this structure, its higher frequency response curve there will be quick drop at tens K hertz, produces high-frequency cut-off frequency, cannot produce the sound wave of the good higher frequency of acoustic mass.Due to the restriction of conventional loudspeakers device materials and technique, its high-frequency cut-off frequency is difficult to promote, and the medium-high frequency effect of speaker unit is also difficult to obtain obviously promote.
Therefore, be necessary to propose a kind of improvement, to overcome the defect of the speaker unit of prior art.
Utility model content
Technical problem to be solved in the utility model is to provide the effective speaker unit of a kind of medium-high frequency.
To achieve these goals, the utility model is by the following technical solutions:
A kind of speaker unit, involving vibrations system, the auxiliary system of magnetic circuit system and the fixing described magnetic circuit system of collecting and vibrational system, described vibrational system comprises the vibrating diaphragm combined, centring disk and voice coil loudspeaker voice coil, described centring disk comprises the first fixed part, be arranged at the second fixed part in described first fixed part and connect the linking arm of described first fixed part and described second fixed part, and: described second fixed part center is provided with piezoelectric patches, the corresponding described piezoelectric patches of described centring disk is provided with the first pad, described piezoelectric patches is electrically connected with described first pad.
As the preferred technical scheme of one, described second fixed part is loop configuration, described piezoelectric patches periphery and described second fixed part secure bond.
As the preferred technical scheme of one, described vibrating diaphragm comprises fixed part, middle planar portions and connect the ring portion of described fixed part and described planar portions, described planar portions and described centring disk second fixed part secure bond.
As the preferred technical scheme of one, as the preferred technical scheme of one, described centring disk is provided with the second pad, and described second pad is electrically connected with described voice coil loudspeaker voice coil.
As further preferred technical scheme, described first pad and described second pad are all arranged at described second fixed part.As further technical scheme, described piezoelectric patches is arranged at described second fixed part away from described vibrating diaphragm side.
As further preferred technical scheme again, described first fixed part is provided with the first external pads and the second external pads, and described first external pads and described first pad are electrically coupled, and described second pad and described second external pads are electrically coupled.
As further preferred technical scheme, described centring disk is provided with conducting wire, and described first fixed part, described second fixed part and described linking arm position are provided with described conducting wire.
As the preferred technical scheme of one, described auxiliary system comprises protecgulum and shell.
As one preferred technical scheme further, described centring disk is fixedly installed between described protecgulum and described shell.
Speaker unit of the present utility model, second fixed part at centring disk center is fixed with piezoelectric patches, and the corresponding piezoelectric patches of centring disk is provided with the first pad, is electrically connected after piezoelectric patches is electrically connected with centring disk with external circuit.Speaker unit of the present utility model, piezoelectric patches is adopted to replace traditional structure speaker unit to be arranged at the reinforcement part of centring disk center, piezoelectric patches can play the effect of reinforcement part, improve the acoustical behavior of speaker unit, simultaneously, piezoelectric patches, as an independently phonation unit, can send the audio signal of medium-high frequency, produces supplement the audio signal of the utility model voice coil loudspeaker voice coil-vibrating diaphragm vocal structure.The audio signal that the signal that piezoelectric patches sends sends with voice coil loudspeaker voice coil-vibrating diaphragm mixes, and effectively improves the medium-high frequency effect of speaker unit, improves the acoustical behavior of speaker unit.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment exploded view;
Fig. 2 is the cutaway view of speaker unit shown in Fig. 1;
Fig. 3 is centring disk stereogram in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model content in detail:
As depicted in figs. 1 and 2, the embodiment of the utility model speaker unit, involving vibrations system, magnetic circuit system and auxiliary system.Auxiliary system comprises protecgulum 11 and shell 12, and protecgulum 11 and shell 12 accommodate fixing vibrational system and magnetic circuit system.Vibrational system comprises vibrating diaphragm 4, and with centring disk 3 and the voice coil loudspeaker voice coil 5 of vibrating diaphragm 4 secure bond, magnetic circuit system comprises magnet and magnetic conductive part, and as shown in Figure 2, magnetic circuit system is provided with magnetic gap, and voice coil loudspeaker voice coil 5 is suspended in described magnetic gap.External electric signal enters in voice coil loudspeaker voice coil 5, is arranged at curent change in the voice coil loudspeaker voice coil 5 in magnetic field and makes voice coil loudspeaker voice coil 5 be subject to Lorentz force and up-down vibration, and voice coil loudspeaker voice coil 5 vibrates and drives vibrating diaphragm 4 to vibrate, and air sounding is instigated in vibrating diaphragm 4 vibration.
As shown in Figure 3, the utility model speaker unit, centring disk 3 comprises the first fixed part 31, be arranged at the second fixed part 32 in the first fixed part 31, first fixed part 31 is connected by linking arm 33 with the second fixed part 32, as shown in Figures 1 and 2, the second fixed part 32 center of centring disk 3 is provided with piezoelectric patches 2.The utility model piezoelectric speaker, piezoelectric patches 2 is as another sound generation source, and the sound generation source formed with voice coil loudspeaker voice coil-vibrating diaphragm coordinates, and the sound high-frequency effect that piezoelectric patches 2 sends is good, produces supplement the audio signal of voice coil loudspeaker voice coil-vibrating diaphragm vocal structure.The audio signal that the signal that piezoelectric patches 2 sends sends with voice coil loudspeaker voice coil-vibrating diaphragm mixes, and effectively improves the medium-high frequency effect of speaker unit, improves the acoustical behavior of speaker unit.
As shown in Figure 3, the second fixed part 32 is provided with one group of first pad 32a, in the utility model speaker unit assembling production process, piezoelectric patches 2 is electrically connected with the first pad 32a, and piezoelectric patches 2 is electrically connected with external circuit by centring disk 3.
As shown in Figure 3, the speaker unit of the present embodiment, the second fixed part 32 of centring disk 3 is loop configuration, in the present embodiment speaker unit production process, the peripheral part of piezoelectric patches 2 and the second fixed part 32 secure bond.Second fixed part 32 is loop configuration, reduces the weight of vibrational system, is conducive to the acoustical behavior improving speaker unit.
As shown in Figures 1 and 2, the speaker unit of the present embodiment, vibrating diaphragm 4 comprises fixed part, be arranged at the planar portions being positioned at center of fixed part inside and the ring portion of connecting portion and planar portions, as shown in Figure 2, the planar portions of vibrating diaphragm 4 is combined with the second fixed part of centring disk 3, and the fixed part of vibrating diaphragm 4 is combined with the first fixed part of centring disk 3.The vibrating diaphragm 4 of the present embodiment, the corresponding piezoelectric patches 2 in center of its planar portions is also loop configuration, and center goes the vibrating diaphragm 4 of expecting can reduce the weight of vibrational system, improves the acoustical behavior of speaker unit.
As shown in Figure 3, the corresponding voice coil loudspeaker voice coil of centring disk 3 is provided with one group of second pad 32b, and the second pad 32b welds with voice coil leads.First fixed part 31 is provided with one group of first external pads 31a and a group of the second external pads 31b, and the first external pads 31a and the first pad 32a is electrically coupled, and the second external pads 31b and the second pad 32b is electrically coupled.First external pads 31a and the second external pads 31b is electrically connected with external electronic circuits respectively.The centring disk of the present embodiment, is provided with conducting wire, can be flexible conductive wire road plate structure, and the first fixed part 31, second fixed part 32 and linking arm 33 are provided with conducting wire, to ensure piezoelectric patches and voice coil loudspeaker voice coil to be electrically connected with external circuit.
As shown in Figure 2, the speaker unit of the present embodiment, piezoelectric patches 2 is arranged at the side of centring disk 3 away from vibrating diaphragm 4, the design that this design is convenient to piezoelectric patches 2, is electrically connected between voice coil loudspeaker voice coil 5 with centring disk 4, simplify speaker unit circuit design difficulty, reduce the production and assembly difficulty of speaker unit, enhance productivity.
Speaker unit of the present utility model, traditional structure speaker unit is replaced to be arranged at the reinforcement part of centring disk center by adopting piezoelectric patches, piezoelectric patches can play the effect of reinforcement part, improve the acoustical behavior of speaker unit, simultaneously, piezoelectric patches, as an independently phonation unit, can send the audio signal of medium-high frequency, produces supplement the audio signal of the utility model voice coil loudspeaker voice coil-vibrating diaphragm vocal structure.The audio signal that the signal that piezoelectric patches sends sends with voice coil loudspeaker voice coil-vibrating diaphragm mixes, and effectively improves the medium-high frequency effect of speaker unit, improves the acoustical behavior of speaker unit.
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 (10)
1. a speaker unit, involving vibrations system, the auxiliary system of magnetic circuit system and the fixing described magnetic circuit system of collecting and vibrational system, described vibrational system comprises the vibrating diaphragm combined, centring disk and voice coil loudspeaker voice coil, described centring disk comprises the first fixed part, be arranged at the second fixed part in described first fixed part and connect the linking arm of described first fixed part and described second fixed part, it is characterized in that: described second fixed part center is provided with piezoelectric patches, the corresponding described piezoelectric patches of described centring disk is provided with the first pad, described piezoelectric patches is electrically connected with described first pad.
2. speaker unit according to claim 1, is characterized in that: described second fixed part is loop configuration, described piezoelectric patches periphery and described second fixed part secure bond.
3. speaker unit according to claim 1, is characterized in that: described vibrating diaphragm comprises fixed part, middle planar portions and connect the ring portion of described fixed part and described planar portions, described planar portions and described centring disk second fixed part secure bond.
4. speaker unit according to claim 1, is characterized in that: described centring disk is provided with the second pad, and described second pad is electrically connected with described voice coil loudspeaker voice coil.
5. speaker unit according to claim 4, is characterized in that: described first pad and described second pad are all arranged at described second fixed part.
6. speaker unit according to claim 5, is characterized in that: described piezoelectric patches is arranged at described second fixed part away from described vibrating diaphragm side.
7. speaker unit according to claim 5, it is characterized in that: described first fixed part is provided with the first external pads and the second external pads, described first external pads and described first pad are electrically coupled, and described second pad and described second external pads are electrically coupled.
8. speaker unit according to claim 7, is characterized in that: described centring disk is provided with conducting wire, and described first fixed part, described second fixed part and described linking arm position are provided with described conducting wire.
9. speaker unit according to claim 1, is characterized in that: described auxiliary system comprises protecgulum and shell.
10. speaker unit according to claim 9, is characterized in that: described centring disk is fixedly installed between described protecgulum and described shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246883.4U CN204616078U (en) | 2015-04-22 | 2015-04-22 | Speaker unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246883.4U CN204616078U (en) | 2015-04-22 | 2015-04-22 | Speaker unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204616078U true CN204616078U (en) | 2015-09-02 |
Family
ID=53968598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520246883.4U Active CN204616078U (en) | 2015-04-22 | 2015-04-22 | Speaker unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204616078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169254A1 (en) * | 2015-04-22 | 2016-10-27 | 歌尔声学股份有限公司 | Speaker device |
| WO2019205657A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing unit, sound producing module, and electronic terminal |
-
2015
- 2015-04-22 CN CN201520246883.4U patent/CN204616078U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169254A1 (en) * | 2015-04-22 | 2016-10-27 | 歌尔声学股份有限公司 | Speaker device |
| US10237661B2 (en) | 2015-04-22 | 2019-03-19 | Goertek, Inc. | Speaker device |
| WO2019205657A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing unit, sound producing module, and electronic terminal |
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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. |