CN202602886U - Piezoelectric ceramic loudspeaker with improved bass performance - Google Patents
Piezoelectric ceramic loudspeaker with improved bass performance Download PDFInfo
- Publication number
- CN202602886U CN202602886U CN 201220236076 CN201220236076U CN202602886U CN 202602886 U CN202602886 U CN 202602886U CN 201220236076 CN201220236076 CN 201220236076 CN 201220236076 U CN201220236076 U CN 201220236076U CN 202602886 U CN202602886 U CN 202602886U
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- CN
- China
- Prior art keywords
- piezoelectric ceramic
- protecgulum
- bonnet
- vibrating diaphragm
- metallic film
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a piezoelectric ceramic loudspeaker with improved bass performance. The piezoelectric ceramic loudspeaker comprises a front cover of which the middle part is provided with sound through holes; an elastic diaphragm is fixedly arranged in the front cover; the middle part of the front cover is provided with a cavity which is beneficial to the vibration of the elastic diaphragm; a piezoelectric ceramic sheet and a metal film border are arranged on the elastic diaphragm; the metal film border is located at the periphery of the piezoelectric ceramic sheet; a rear cover is fixedly connected with the front cover; a space forming a sound cavity is arranged between the rear cover and the piezoelectric ceramic sheet; the piezoelectric ceramic sheet, the elastic diaphragm and the metal film border are all arranged between the rear cover and the front cover; lead-out electrodes of the piezoelectric ceramic sheet are led out of the rear cover by a flexible printed circuit board and serve as electric signal input terminals of the piezoelectric ceramic loudspeaker; a flexible elastic substrate is arranged between the front cover and the elastic diaphragm; and a flexible elastic substrate is arranged between the rear cover and the metal film border. The piezoelectric ceramic loudspeaker has excellent bass performance.
Description
Technical field
The utility model relates to piezoelectric ceramic loudspeaker.
Background technology
Piezoelectric ceramic loudspeaker commonly used at present; Comprise: the middle part offers the protecgulum of sound through hole; The protecgulum internal fixation is provided with the elasticity vibrating diaphragm, and the middle part of protecgulum is provided with the cavity that is beneficial to the vibration of elasticity vibrating diaphragm, and the elasticity vibrating diaphragm is provided with piezoelectric ceramic piece and metallic film frame; The metallic film frame is positioned at the periphery of piezoelectric ceramic piece; Bonnet is fixedly connected with protecgulum, is provided with the space that constitutes the sound chamber between bonnet and the described piezoelectric ceramic piece, and piezoelectric ceramic piece, elasticity vibrating diaphragm, metallic film frame all are arranged within bonnet and the protecgulum; Flexible print circuit board leads to the extraction electrode of piezoelectric ceramic piece outside the bonnet, as the electric signal input end of piezoelectric ceramic loudspeaker.
The shortcoming that the piezoelectric ceramic loudspeaker of said structure exists is: the marginal portion of elasticity vibrating diaphragm and metallic film frame directly is installed between protecgulum and the bonnet; The marginal portion that is elasticity vibrating diaphragm and metallic film frame is directly being pressed by protecgulum and bonnet; This mounting structure directly causes the vibration performance of elasticity vibrating diaphragm and metallic film frame to be affected, thereby causes the bass performance of piezoelectric ceramic loudspeaker not good.
The utility model content
The purpose of the utility model provides the excellent piezoelectric ceramic loudspeaker of a kind of bass performance.
For realizing above-mentioned purpose, the utility model has adopted following technical scheme.
Can promote the piezoelectric ceramic loudspeaker of bass performance; Comprise: the middle part offers the protecgulum of sound through hole; The protecgulum internal fixation is provided with the elasticity vibrating diaphragm, and the middle part of protecgulum is provided with the cavity that is beneficial to the vibration of elasticity vibrating diaphragm, and the elasticity vibrating diaphragm is provided with piezoelectric ceramic piece and metallic film frame; The metallic film frame is positioned at the periphery of piezoelectric ceramic piece; Bonnet is fixedly connected with protecgulum, is provided with the space that constitutes the sound chamber between bonnet and the described piezoelectric ceramic piece, and piezoelectric ceramic piece, elasticity vibrating diaphragm, metallic film frame all are arranged within bonnet and the protecgulum; Flexible print circuit board leads to the extraction electrode of piezoelectric ceramic piece outside the bonnet, as the electric signal input end of piezoelectric ceramic loudspeaker; Be characterized in: be provided with flexible elastic force base material between said protecgulum and the elasticity vibrating diaphragm, be provided with flexible elastic force base material between said bonnet and the metallic film frame.
Further, the aforesaid piezoelectric ceramic loudspeaker that can promote bass performance, wherein: said protecgulum and bonnet are plastic cement protecgulum and plastic cement bonnet.
The beneficial effect of the utility model is: elasticity vibrating diaphragm, metallic film frame are fixed through flexible elastic force base material and protecgulum and bonnet respectively, have improved the vibration performance of elasticity vibrating diaphragm, metallic film frame effectively, have improved the bass performance of loud speaker greatly; Plastic cement protecgulum and plastic cement bonnet can not produce the influence that is unfavorable for radio communication to periphery electromagnetic environment, can guarantee the radio communication quality of relevant device.Use the metallic film frame to compare, when guaranteeing loud speaker tonequality performance, reduced consumption of raw materials, reduced production cost with normally used block of metal vibrating diaphragm.
Description of drawings
Fig. 1 is the structural representation of the described piezoelectric ceramic loudspeaker of the utility model.
Fig. 2 is the plan structure sketch map of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the described piezoelectric ceramic loudspeaker that can promote bass performance of the utility model is further described.
Referring to Fig. 1, shown in Figure 2; The described piezoelectric ceramic loudspeaker that can promote bass performance of the utility model; Comprise: the middle part offers the protecgulum 1 of sound through hole 11---and protecgulum 1 is the plastic cement protecgulum in the present embodiment; Protecgulum 1 internal fixation is provided with elasticity vibrating diaphragm 2, and the middle part of protecgulum 1 is provided with the cavity 12 that is beneficial to 2 vibrations of elasticity vibrating diaphragm, and elasticity vibrating diaphragm 2 is provided with piezoelectric ceramic piece 3 and metallic film frame 4; Metallic film frame 4 is positioned at the periphery of piezoelectric ceramic piece 3; Bonnet 5 is fixedly connected with protecgulum 1---and bonnet 5 is the plastic cement bonnet in the present embodiment, is provided with the space 51 that constitutes the sound chamber between bonnet 5 and the described piezoelectric ceramic piece 3, and piezoelectric ceramic piece 3, elasticity vibrating diaphragm 2, metallic film frame 4 all are arranged within bonnet 5 and the protecgulum 1; Flexible print circuit board 6 leads to the extraction electrode of piezoelectric ceramic piece 3 outside the bonnet 5, as the electric signal input end of piezoelectric ceramic loudspeaker; Be provided with flexible elastic force base material 7 between said protecgulum 1 and the elasticity vibrating diaphragm 2, be provided with flexible elastic force base material 71 between said bonnet 5 and the metallic film frame 4.
The described piezoelectric ceramic loudspeaker that can promote bass performance of the utility model; Elasticity vibrating diaphragm 2 contacts fixing with protecgulum 1 through flexible elastic force base material 7; Metallic film frame 4 contacts fixing with bonnet 5 through flexible elastic force base material 71; Make the marginal portion of elasticity vibrating diaphragm 2 and metallic film frame 4 to have the leeway of flexible vibration, improved the vibration performance of elasticity vibrating diaphragm 2, metallic film frame 4 effectively, thereby improved the bass performance of loud speaker greatly; Plastic cement protecgulum and plastic cement bonnet can not produce the influence that is unfavorable for radio communication to periphery electromagnetic environment, can guarantee the radio communication quality of relevant device.Use the metallic film frame to compare, when guaranteeing loud speaker tonequality performance, reduced consumption of raw materials, reduced production cost with normally used block of metal vibrating diaphragm.
Claims (2)
1. can promote the piezoelectric ceramic loudspeaker of bass performance; Comprise: the middle part offers the protecgulum of sound through hole; The protecgulum internal fixation is provided with the elasticity vibrating diaphragm, and the middle part of protecgulum is provided with the cavity that is beneficial to the vibration of elasticity vibrating diaphragm, and the elasticity vibrating diaphragm is provided with piezoelectric ceramic piece and metallic film frame; The metallic film frame is positioned at the periphery of piezoelectric ceramic piece; Bonnet is fixedly connected with protecgulum, is provided with the space that constitutes the sound chamber between bonnet and the described piezoelectric ceramic piece, and piezoelectric ceramic piece, elasticity vibrating diaphragm, metallic film frame all are arranged within bonnet and the protecgulum; Flexible print circuit board leads to the extraction electrode of piezoelectric ceramic piece outside the bonnet, as the electric signal input end of piezoelectric ceramic loudspeaker; It is characterized in that: be provided with flexible elastic force base material between said protecgulum and the elasticity vibrating diaphragm, be provided with flexible elastic force base material between said bonnet and the metallic film frame.
2. the piezoelectric ceramic loudspeaker that can promote bass performance according to claim 1 is characterized in that: said protecgulum and bonnet are plastic cement protecgulum and plastic cement bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236076 CN202602886U (en) | 2012-05-24 | 2012-05-24 | Piezoelectric ceramic loudspeaker with improved bass performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236076 CN202602886U (en) | 2012-05-24 | 2012-05-24 | Piezoelectric ceramic loudspeaker with improved bass performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602886U true CN202602886U (en) | 2012-12-12 |
Family
ID=47320392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220236076 Expired - Lifetime CN202602886U (en) | 2012-05-24 | 2012-05-24 | Piezoelectric ceramic loudspeaker with improved bass performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724611A (en) * | 2012-05-24 | 2012-10-10 | 张家港市玉同电子科技有限公司 | Piezoelectric ceramic loudspeaker capable of improving bass performance |
-
2012
- 2012-05-24 CN CN 201220236076 patent/CN202602886U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724611A (en) * | 2012-05-24 | 2012-10-10 | 张家港市玉同电子科技有限公司 | Piezoelectric ceramic loudspeaker capable of improving bass performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |