CN208315188U - Buzzer and its piezoelectricity singing piece - Google Patents
Buzzer and its piezoelectricity singing piece Download PDFInfo
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- CN208315188U CN208315188U CN201820978831.XU CN201820978831U CN208315188U CN 208315188 U CN208315188 U CN 208315188U CN 201820978831 U CN201820978831 U CN 201820978831U CN 208315188 U CN208315188 U CN 208315188U
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- sheet metal
- piezoelectricity singing
- piezoelectric
- singing piece
- piezoelectric chip
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Abstract
The utility model discloses a kind of buzzer and its piezoelectricity singing piece, the piezoelectricity singing piece includes the two panels piezoelectric chip of sheet metal with the two sides for being adhered to the sheet thicknesses direction, and the sheet metal surface is equipped with ripple；The piezoelectric chip size is less than the metal chip size, and it falls within the scope of the sheet metal along the projection perpendicular to the sheet metal surface direction, the opposite two sides short circuit connection of two piezoelectric chips.The piezoelectricity singing piece adopted the structure can reduce equipment difficulty of processing and technology difficulty, and can increase the reliability of piezo, promote the electric property of piezo.
Description
Technical field
The utility model relates to sensor technical field more particularly to a kind of buzzers and its piezoelectricity singing piece.
Background technique
Buzzer is a kind of electronics buzzer of integral structure, using DC-voltage supply, be widely used in computer,
Make acoustical generator in the electronic products such as printer, duplicator, alarm, electronic toy, vehicle electronics, telephone set, timer
Part.It is broadly divided into piezo buzzer and electromagnetic buzzer two types.Piezoelectricity singing piece is piezo buzzer key portion
One of part is broadly divided into single piezoelectricity singing piece and double piezoelectricity singing pieces.
The sheet metal of double piezoelectricity singing pieces has corrugated metal piece and plain film sheet metal.Using the piezoelectric buzzing of corrugated metal piece
The general piezoelectric chip diameter of piece is identical as corrugated metal piece, piezo bias, even sliver is easy to appear at this time, so the type
Piezo is higher to process equipment required precision, and processing technology difficulty is big.And use the piezoelectricity singing piece of plain film sheet metal general
Plain film sheet metal diameter is bigger than piezoelectric chip, although reducing to equipment precision and processing technology requirement, is not achieved using wave
The structural strength and vibrating effect of the piezo of line sheet metal.
Utility model content
In view of the above problems, the utility model proposes one kind can reduce equipment difficulty of processing and technology difficulty, and can increase
The reliability for adding piezo promotes the piezoelectricity singing piece of the electric property of piezo.
In addition, the utility model also proposed the buzzer using above-mentioned piezoelectricity singing piece.
The utility model first aspect provides a kind of piezoelectricity singing piece, including sheet metal and to be adhered to the sheet metal thick
The two panels piezoelectric chip of the two sides in direction is spent, the sheet metal surface is equipped with ripple；The piezoelectric chip size is less than the gold
Belong to chip size, and it falls within the scope of the sheet metal along the projection perpendicular to the sheet metal surface direction, two piezoelectricity
The opposite two sides short circuit connection of chip.
Further, the opposite two sides of two piezoelectric chips is connected by being connected across the conductor short circuit of the sheet metal two sides
It connects.
Preferably, the conductor is becket, and the edge of the sheet metal is equipped with resigning breach, and the becket is connected across
At the resigning breach, make between the becket and the sheet metal that there are gaps.
Preferably, the sheet metal includes circular main part, and the resigning breach is set along the main part edge is extended
Fan-shaped, the piezoelectric chip is that round and its edge is aligned with the resigning breach edge.
Preferably, the sheet metal includes circular main part and radially extends from the main part edge and protrude from two institutes
State flange of the piezoelectric chip for welding power cord.
Preferably, the sheet metal includes the central part equipped with annular line or spiral lamination and the edge part equipped with radiation line.
Preferably, the two piezoelectric chip sizes are identical, and each piezoelectric chip covers accounting for for the unilateral sheet metal
Than being 92%~96%.
Preferably, be bonded by soft glue between the piezoelectric chip and the sheet metal.
Preferably, the sheet metal is latten(-tin) or stainless steel substrates, and the piezoelectric chip is piezoelectric ceramic piece.
The utility model second aspect provides a kind of buzzer, including shell, is assembled in the shell and electrically connects
The circuit board and piezo connect, wherein the piezo is the piezoelectricity singing piece.
Compared with prior art, buzzer and its piezoelectricity singing piece described in the utility model at least have below beneficial to effect
Fruit:
(1) corrugated metal piece is used, and piezoelectric chip size is less than the size of sheet metal, reduces sheet metal and piezo crystals
It to the requirement of concentricity in piece bonding process, reduces to equipment precision and processing technology requirement, improves production efficiency and be conducive to criticize
Amount production, while ensure that the structural strength and vibrating effect of piezo.
(2) it is 92%~96% that each piezoelectric chip, which covers the accounting of unilateral sheet metal, allows sheet metal and piezoelectric chip
Bonding is there are while error, making the two registration big as far as possible, while equally reduction to equipment precision and processing technology requirement,
It ensure that the structural strength and vibrating effect of piezo.
(3) central part of sheet metal is equipped with spiral lamination or annular line, and edge part is equipped with radiation line, piezoelectric chip and sheet metal
Between fill soft glue；It is designed by sheet metal using different lines, and fills soft glue therebetween, can guarantee
Under the premise of piezo structural strength, increase its vibrating effect.
(4) it is connected by being connected across the two sides short circuit that the becket of sheet metal two sides keeps two piezoelectric chips opposite, and in gold
Belong to piece edge and the resigning breach for avoiding becket is set, effectively prevent becket directly to contact with sheet metal, enhance bee
The reliability of ring piece, improves the electric property of piezo.
(5) sheet metal is generally circular, and edge is equipped with the flange for protruding from two piezoelectric chips for welding power cord；Institute
The setting of pad is convenient in the setting for stating flange, increases welding operable area, reduces technology difficulty, effectively prevent the electricity of sheet metal
Source line is contacted with piezoelectric chip.
These aspects or other aspects of the utility model can more straightforwards in the following description.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, for those skilled in the art, without creative efforts, can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the piezoelectricity singing piece of embodiment of the utility model；
Fig. 2 is the decomposition texture schematic diagram of piezoelectricity singing piece shown in the utility model Fig. 1；
Fig. 3 is the cross-sectional view in the direction A-A of piezoelectricity singing piece shown in the utility model Fig. 1；
Fig. 4 is the structural schematic diagram of the sheet metal of piezoelectricity singing piece shown in the utility model Fig. 1；
Fig. 5 is a kind of manufacturing method of the piezoelectricity singing piece of embodiment of the utility model.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those skilled in the art's every other embodiment obtained without creative efforts, belongs to this reality
With novel protected range.
Referring to Fig.1 and 2, the utility model first aspect provides a kind of piezoelectricity singing piece 100, including sheet metal 1,
Two panels piezoelectric chip 2,3 and becket 4.
Referring to figure 3. and Fig. 4,1 surface of sheet metal are equipped with ripple.In the present embodiment, the sheet metal 1 includes being equipped with
The central part 11 of spiral lamination and equipped with radiation line edge part 12.In other embodiments, the central part 11 can also be set as
Annular line.
Incorporated by reference to Fig. 3, two piezoelectric chips 2,3 are symmetrically adhered to the two sides of 1 thickness direction of sheet metal, and size is omited
Less than 1 size of sheet metal, and it falls in 1 range of sheet metal along the projection perpendicular to 1 surface direction of sheet metal
It is interior, so that the edge part 12 is at least partly exposed to two 2,3 outsides of piezoelectric chip.Preferably, two piezoelectric chip 2,3
Size is identical, and the accounting of each unilateral sheet metal 1 of the covering of piezoelectric chip 2,3 is 92%~96%, is overlapped the two
It spends big as far as possible.
There is opening, bring it about elastic deformation by expanding its opening with Fig. 3, the becket 4 referring to figure 2., across
1 two sides of sheet metal are connected to, and by keeping two piezoelectric chips 2,3 opposite with two welding of piezoelectric chip 2,3 it
Two sides short circuit connection.In other embodiments, the opposite two sides of two piezoelectric chips 2,3 can be by other kinds of
Conductor (such as soft conducting wire with insulating layer) short circuit connection；In addition, two piezoelectric chips 2,3 can also be by running through two
Person connects with the via hole short circuit on the surface of sheet metal 1.
Referring to figure 3. and Fig. 4, in the present embodiment, the edge of the sheet metal 1 is equipped with resigning breach 13, the becket 4
It is connected across at the resigning breach 13.The resigning breach 13 prevents the becket 4 and institute for avoiding the becket 4
Sheet metal 1 is stated directly to contact.Preferably, the sheet metal 1 is generally circular, including circular main part (not labeled), described
Resigning breach 13 is set fan-shaped along the main part edge is extended, and the piezoelectric chip 2,3 is that round and its edge allows with described
The alignment of position 13 edge of notch.
Please refer to Fig. 1 and Fig. 4, in the present embodiment, the sheet metal 1 is generally circular, including circular main part and from
The main part edge radially extends the flange 14 for protruding from two piezoelectric chips 2,3 for welding power cord (not shown).
Convenient for the setting of pad, increase welding operable area, reduce technology difficulty, effectively prevent the power supply line of the sheet metal 1 with
The piezoelectric chip 2,3 contacts.
Referring to figure 2. and Fig. 3, it is preferred that viscous by soft glue 5 between the piezoelectric chip 2,3 and the sheet metal 1
It connects.
Preferably, the sheet metal 1 is latten(-tin) or stainless steel substrates, and the piezoelectric chip 2,3 is piezoelectric ceramic piece.
The utility model second aspect provides a kind of buzzer (not shown), including shell (not shown), is assembled in institute
State the circuit board (not shown) and piezo (not shown) in shell and being electrically connected, wherein the piezo is the piezoelectricity
Piezo 100.
Referring to figure 5., the structure of piezoelectricity singing piece described in the utility model, the utility model additionally provide for ease of understanding
A kind of manufacturing method applied to the piezoelectricity singing piece, comprising the following steps:
One surface coating of a piece of piezoelectric chip is pasted on the side of the sheet metal by S101；
One surface coating of another piezoelectric chip is pasted on the other side of the sheet metal by S102；
S103 waits for glue curing, and the opposite two sides short circuit of two piezoelectric chips is connected.
Preferably, it is described a surface coating of a piece of piezoelectric chip is pasted on the side of the sheet metal before also
It include: that metal plate is generated into sheet metal using stamping forming mode punching press, the sheet metal includes being equipped with spiral lamination or annular
The central part of line and equipped with radiation line edge part, the edge part be equipped with resigning breach and flange.
Wherein, the sheet metal can be formed by the way of one time punching molded, can also be formed using Multi-step forming
Mode is formed, and stacked conducting plate can also be stacked to sheet metal described in one time punching molded multi-disc.
As an implementation, the two sides short circuit connection that two piezoelectric chips are opposite specifically: by metal
Ring is connected at the resigning breach of the sheet metal, makes between the becket and the sheet metal that there are certain intervals, and its
The both ends of opening are contacted with two piezoelectric chips respectively, and becket both ends are welded in the opposite two sides of two piezoelectric chips.
It should be understood that the bonding process of piezoelectric chip and sheet metal can also be respectively in the sheet metal
Two piezoelectric chips are pasted on the two sides of the sheet metal by the square double spread of center portion simultaneously.Gluing process can make
Glue is filled up in the lines of the central part, but should guarantee not spilling over the piezoelectric chip lateral margin as far as possible.
Compared with prior art, buzzer and its piezoelectricity singing piece described in the utility model have the advantage that
(1) corrugated metal piece is used, and piezoelectric chip size is less than the size of sheet metal, reduces sheet metal and piezo crystals
It to the requirement of concentricity in piece bonding process, reduces to equipment precision and processing technology requirement, improves production efficiency and be conducive to criticize
Amount production, while ensure that the structural strength and vibrating effect of piezo.
(2) it is 92%~96% that each piezoelectric chip, which covers the accounting of unilateral sheet metal, allows sheet metal and piezoelectric chip
Bonding is there are while error, making the two registration big as far as possible, while equally reduction to equipment precision and processing technology requirement
It ensure that the structural strength and vibrating effect of piezo.
(3) central part of sheet metal is equipped with spiral lamination or annular line, and edge part is equipped with radiation line, piezoelectric chip and sheet metal
Between fill soft glue；It is designed by sheet metal using different lines, and fills soft glue therebetween, can guarantee
Under the premise of piezo structural strength, increase its vibrating effect.
(4) it is connected by being connected across the two sides short circuit that the becket of sheet metal two sides keeps two piezoelectric chips opposite, and in gold
Belong to piece edge and the resigning breach for avoiding becket is set, effectively prevent becket directly to contact with sheet metal, enhance bee
The reliability of ring piece, improves the electric property of piezo.
(5) sheet metal is generally circular, and edge is equipped with the flange for protruding from two piezoelectric chips for welding power cord；Institute
The setting of pad is convenient in the setting for stating flange, increases welding operable area, reduces technology difficulty, effectively prevent the electricity of sheet metal
Source line is contacted with piezoelectric chip.
Some embodiments provided by the utility model are described in detail above, for the general technology of this field
Personnel, based on the idea of the embodiment of the present invention, there will be changes in the specific implementation manner and application range, to sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of piezoelectricity singing piece, the two panels piezo crystals including sheet metal He the two sides for being adhered to the sheet thicknesses direction
Piece, which is characterized in that
The sheet metal surface is equipped with ripple；
The piezoelectric chip size is less than the metal chip size, and it falls along the projection perpendicular to the sheet metal surface direction
Within the scope of the sheet metal, the opposite two sides short circuit connection of two piezoelectric chips.
2. piezoelectricity singing piece according to claim 1, which is characterized in that the opposite two sides of two piezoelectric chips passes through
It is connected across the conductor short circuit connection of the sheet metal two sides.
3. piezoelectricity singing piece according to claim 2, which is characterized in that the conductor is becket, the sheet metal
Edge is equipped with resigning breach, and the becket is connected across at the resigning breach, makes between the becket and the sheet metal
There are gaps.
4. piezoelectricity singing piece according to claim 3, which is characterized in that the sheet metal includes circular main part, institute
It is fan-shaped along main part edge setting to state resigning breach, the piezoelectric chip is round and its edge and the resigning breach
Edge alignment.
5. piezoelectricity singing piece according to claim 1, which is characterized in that the sheet metal includes circular main part and oneself
The main part edge radially extends the flange for protruding from two piezoelectric chips for welding power cord.
6. piezoelectricity singing piece according to claim 1, which is characterized in that the sheet metal includes being equipped with annular line or spiral
The central part of line and equipped with radiation line edge part.
7. piezoelectricity singing piece according to claim 1, which is characterized in that the two piezoelectric chip sizes are identical, Mei Yisuo
The accounting for stating the unilateral sheet metal of piezoelectric chip covering is 92%~96%.
8. piezoelectricity singing piece according to claim 1, which is characterized in that lead between the piezoelectric chip and the sheet metal
Cross soft glue bonding.
9. piezoelectricity singing piece according to claim 1, which is characterized in that the sheet metal be latten(-tin) or stainless steel substrates,
The piezoelectric chip is piezoelectric ceramic piece.
10. a kind of buzzer, including shell, the circuit board for being assembled in the shell and being electrically connected and piezo, feature
It is, the piezo is piezoelectricity singing piece described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820978831.XU CN208315188U (en) | 2018-06-22 | 2018-06-22 | Buzzer and its piezoelectricity singing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820978831.XU CN208315188U (en) | 2018-06-22 | 2018-06-22 | Buzzer and its piezoelectricity singing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208315188U true CN208315188U (en) | 2019-01-01 |
Family
ID=64707965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820978831.XU Active CN208315188U (en) | 2018-06-22 | 2018-06-22 | Buzzer and its piezoelectricity singing piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208315188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648740A (en) * | 2018-06-22 | 2018-10-12 | 肇庆奥迪威传感科技有限公司 | Buzzer, piezoelectricity singing piece and its manufacturing method |
-
2018
- 2018-06-22 CN CN201820978831.XU patent/CN208315188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648740A (en) * | 2018-06-22 | 2018-10-12 | 肇庆奥迪威传感科技有限公司 | Buzzer, piezoelectricity singing piece and its manufacturing method |
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