CN204392549U - New micro loud speaker - Google Patents
New micro loud speaker Download PDFInfo
- Publication number
- CN204392549U CN204392549U CN201420825010.4U CN201420825010U CN204392549U CN 204392549 U CN204392549 U CN 204392549U CN 201420825010 U CN201420825010 U CN 201420825010U CN 204392549 U CN204392549 U CN 204392549U
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- China
- Prior art keywords
- vibration source
- cavity
- loud speaker
- new micro
- adjusting device
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Abstract
The utility model discloses a kind of new micro loud speaker, comprise shell, it is characterized in that: be cavity in described shell, the side of cavity is provided with sound-producing device, and the opposite side of cavity is provided with tonal range adjusting device; Described shell is provided with the air vent hole of corresponding tonal range adjusting device.The utility model is compact to design, utilizes design in rational cavity, ensures the sounding effect of low frequency frequency range.
Description
Technical field
The utility model belongs to a kind of new micro loud speaker.
Background technology
Piezo-electric loudspeaker utilizes the piezoelectric effect of piezoelectric, and additional electric field causes the characteristic of material deformation in piezoelectric, is used for promoting vibrating diaphragm (Diaphragm) sounding.Although structure can flat microminiaturization, the resonance frequency being limited to piezoelectric is higher and available bandwidth few, thus makes its application limited, is only applied in siren at present in the majority.The action principle of electrostatic loudspeaker is that the fixed plate electrode of two panels perforate clamping conductive diaphragm is formed capacitor (Condenser), by the alternating voltage supplying vibrating diaphragm direct current (DC) bias and two synchronous positive antiphases of fixed electrode, utilize the electrostatic force that positive and negative charge occurs, drive conductive diaphragm vibration and acoustic radiating is gone out.
But present loud speaker exists a defect, when using in confined space exactly, the sound of low frequency frequency range there will be noise, causes bass to show unsatisfactory.
Utility model content
The technical problems to be solved in the utility model overcomes above-mentioned defect, provides a kind of simple and reliable, reasonable in design, new micro loud speaker that greatly can improve bass effect.
For solving the problem, the technical scheme that the utility model adopts is:
New micro loud speaker, comprises shell, it is characterized in that: be cavity in described shell, the side of cavity is provided with sound-producing device, and the opposite side of cavity is provided with tonal range adjusting device; Described shell is provided with the air vent hole of corresponding tonal range adjusting device.
As a kind of technical scheme of optimization, described tonal range adjusting device comprises the vibration source be fixedly mounted in cavity, is provided with ventilation unit in vibration source.
As a kind of technical scheme of optimization, described vibration source comprises the first vibration source and the second vibration source, and the position that the first vibration source is connected with the second vibration source is provided with ventilation unit.
As a kind of technical scheme of optimization, described ventilation unit is the ventilation hole being arranged on the first vibration source and the second vibration source connecting portion.
As a kind of technical scheme of optimization, described second vibration source is arranged in cavity by fixed mount.
Owing to have employed technique scheme, compared with prior art, the utility model is compact to design, utilizes design in rational cavity, ensures the sounding effect of low frequency frequency range.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment
Embodiment:
As shown in Figure 1, new micro loud speaker, comprises shell 9, and be cavity 1 in described shell 9, the side of cavity 1 is provided with sound-producing device 8, and the opposite side of cavity is provided with tonal range adjusting device.Described shell 9 is provided with the air vent hole 5 of corresponding tonal range adjusting device.
In the present embodiment, described tonal range adjusting device comprises the vibration source be fixedly mounted in cavity, is provided with ventilation unit in vibration source.
Described vibration source comprises the position that the first vibration source 4 and the second vibration source 6, first vibration source 4 be connected with the second vibration source 6 and is provided with ventilation unit.Described ventilation unit is the ventilation hole 3 being arranged on the first vibration source 4 and the second vibration source 6 connecting portion.Described second vibration source 6 is arranged in cavity 1 by fixed mount 7.In addition, according to the actual needs, the both sides of the first vibration source can be provided with protective cradle 2.
The utility model is compact to design, utilizes design in rational cavity, ensures the sounding effect of low frequency frequency range.
The utility model is not limited to above-mentioned preferred implementation, and anyone should learn the structural change made under enlightenment of the present utility model, and every have identical or akin technical scheme with the utility model, all belongs to protection range of the present utility model.
Claims (5)
1. new micro loud speaker, comprises shell, it is characterized in that: be cavity in described shell, the side of cavity is provided with sound-producing device, and the opposite side of cavity is provided with tonal range adjusting device; Described shell is provided with the air vent hole of corresponding tonal range adjusting device.
2. new micro loud speaker according to claim 1, is characterized in that: described tonal range adjusting device comprises the vibration source be fixedly mounted in cavity, is provided with ventilation unit in vibration source.
3. new micro loud speaker according to claim 2, is characterized in that: described vibration source comprises the first vibration source and the second vibration source, and the position that the first vibration source is connected with the second vibration source is provided with ventilation unit.
4. new micro loud speaker according to claim 3, is characterized in that: described ventilation unit is the ventilation hole being arranged on the first vibration source and the second vibration source connecting portion.
5. new micro loud speaker according to claim 3, is characterized in that: described second vibration source is arranged in cavity by fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825010.4U CN204392549U (en) | 2014-12-22 | 2014-12-22 | New micro loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825010.4U CN204392549U (en) | 2014-12-22 | 2014-12-22 | New micro loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392549U true CN204392549U (en) | 2015-06-10 |
Family
ID=53365226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420825010.4U Active CN204392549U (en) | 2014-12-22 | 2014-12-22 | New micro loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204392549U (en) |
-
2014
- 2014-12-22 CN CN201420825010.4U patent/CN204392549U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Huiling Document name: Notice of conformity |