CN205230577U - Anti -oxidant corrosion -resistant piezoelectric buzzer - Google Patents
Anti -oxidant corrosion -resistant piezoelectric buzzer Download PDFInfo
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- CN205230577U CN205230577U CN201521063802.3U CN201521063802U CN205230577U CN 205230577 U CN205230577 U CN 205230577U CN 201521063802 U CN201521063802 U CN 201521063802U CN 205230577 U CN205230577 U CN 205230577U
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- copper sheet
- buzzing
- silver layer
- piezoelectric buzzer
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Abstract
The utility model discloses an anti -oxidant corrosion -resistant piezoelectric buzzer belongs to the piezoelectric buzzer, aim at providing the piezoelectric buzzer that to avoid the buzzing piece to be corroded the oxidation by aggressive fume. It includes fixes the buzzing piece in the buzzing box through the insulating piece, the buzzing piece is by fixing copper sheet on the insulating piece, fix piezoceramics piece on this copper sheet, coating the silver layer on this piezoceramics piece surface and respectively the welding be in electrode on copper sheet and the silver layer constitutes, anti -oxidant coat (7) cover electrode (5), silver layer (6) and copper sheet (2). The utility model discloses can avoid buzzing piece and air to contact, thoroughly overcome the buzzing piece is corroded the oxidation and leads to the defect of vocal downgrade by the aggressive fume in the air easily, it an anti -oxidant corrosion -resistant buzzer.
Description
Technical field
The utility model relates to a kind of piezoelectric buzzer, particularly relates to a kind of oxidation and corrosion piezoelectric buzzer.
Background technology
Piezo buzzer is a kind of electro-acoustic transducing device, forms by being pasted onto piezoelectric on sheet metal; After piezoelectric and sheet metal two ends apply voltage, because piezoelectric effect, piezo will produce mechanically deform and send the sound.It is usually rounded, is made up of piezoelectric ceramic piece, lead-in wire and resonator.And the piezoelectricity singing piece of centre is made up of the coat of metal, potsherd, glue, sheet metal.
Piezo buzzer has that volume is little, highly sensitive, power consumptive province, good reliability, cheap feature and good frequency characteristic; Be widely used in sounding or the warning of various electric equipment products.
At present, because the surface of piezo does not have protective seam, easily mouldy by corrosive gas (as salt fog) the erosion oxidation in air, cause voice quality to decline.
Summary of the invention
In order to overcome the defect existed in prior art, the utility model aims to provide a kind of oxidation and corrosion piezoelectric buzzer avoiding the gas pickling of being corroded property of piezo to be oxidized.
To achieve these goals, the utility model by the following technical solutions: it comprises the piezo be fixed on by insulating trip in buzzing box; Described piezo is made up of the copper sheet be fixed on described insulating trip, the piezoelectric ceramic piece be fixed on this copper sheet, the silver layer being coated in this piezoelectric ceramic piece surface and the electrode be welded on respectively on described copper sheet and silver layer; Electrode, silver layer and copper sheet cover by anti-oxidant coat.
Anti-oxidant coat is UV solder mask layer.
Compared with the prior art, the utility model is owing to have employed technique scheme, anti-oxidant coat is coated with on the surface of piezo, therefore, it is possible to by piezo and air exclusion, thus thoroughly overcome piezo and easily corroded oxidation and the defect that causes voice quality to decline by the corrosive gas in air.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cut-open view in Fig. 1.
In figure: piezoelectric ceramic piece 1, copper sheet 2, insulating trip 3, buzzing box 4, electrode 5, silver layer 6, anti-oxidant coat 7.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
As shown in Fig. 1 ~ 2: piezo is fixed in buzzing box 4 by insulating trip 3, described piezo is made up of the copper sheet 2 be fixed on insulating trip 3, the piezoelectric ceramic piece 1 be fixed on this copper sheet, the silver layer 6 being coated in this piezoelectric ceramic piece surface and the electrode 5 be welded on respectively on copper sheet 2 and silver layer 3; Two electrodes 5, silver layer 6 and copper sheet 2 cover by anti-oxidant coat 7; Thus make whole piezo and air insulated, therefore can play Defend salt fog etch and antioxidation, pronunciation quality declines gradually.Anti-oxidant coat 7 adopts UV solder mask layer.
Claims (2)
1. an oxidation and corrosion piezoelectric buzzer, comprises the piezo be fixed on by insulating trip in buzzing box; Described piezo is made up of the copper sheet be fixed on described insulating trip, the piezoelectric ceramic piece be fixed on this copper sheet, the silver layer being coated in this piezoelectric ceramic piece surface and the electrode be welded on respectively on described copper sheet and silver layer; It is characterized in that: electrode (5), silver layer (6) and copper sheet (2) cover by anti-oxidant coat (7).
2. oxidation and corrosion piezoelectric buzzer according to claim 1, is characterized in that: anti-oxidant coat (7) is UV solder mask layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521063802.3U CN205230577U (en) | 2015-12-21 | 2015-12-21 | Anti -oxidant corrosion -resistant piezoelectric buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521063802.3U CN205230577U (en) | 2015-12-21 | 2015-12-21 | Anti -oxidant corrosion -resistant piezoelectric buzzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230577U true CN205230577U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521063802.3U Active CN205230577U (en) | 2015-12-21 | 2015-12-21 | Anti -oxidant corrosion -resistant piezoelectric buzzer |
Country Status (1)
| Country | Link |
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| CN (1) | CN205230577U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931395A (en) * | 2016-07-05 | 2016-09-07 | 青岛海信移动通信技术股份有限公司 | Wearable equipment |
| CN106476701A (en) * | 2016-11-18 | 2017-03-08 | 华南理工大学 | A kind of rain removal device for automobile rearview mirror driven based on ultrasonic travelling wave |
| CN108022580A (en) * | 2017-12-18 | 2018-05-11 | 兴化市天华机电有限公司 | A kind of etch-proof buzzer |
-
2015
- 2015-12-21 CN CN201521063802.3U patent/CN205230577U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931395A (en) * | 2016-07-05 | 2016-09-07 | 青岛海信移动通信技术股份有限公司 | Wearable equipment |
| CN106476701A (en) * | 2016-11-18 | 2017-03-08 | 华南理工大学 | A kind of rain removal device for automobile rearview mirror driven based on ultrasonic travelling wave |
| CN108022580A (en) * | 2017-12-18 | 2018-05-11 | 兴化市天华机电有限公司 | A kind of etch-proof buzzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |