CN204720481U - With the piezoelectric ceramics driving piece of waveform substrate - Google Patents
With the piezoelectric ceramics driving piece of waveform substrate Download PDFInfo
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- CN204720481U CN204720481U CN201520417118.4U CN201520417118U CN204720481U CN 204720481 U CN204720481 U CN 204720481U CN 201520417118 U CN201520417118 U CN 201520417118U CN 204720481 U CN204720481 U CN 204720481U
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- piezoelectric ceramic
- driving piece
- piezoelectric ceramics
- waved surface
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Abstract
The utility model relates to a kind of slide cam selector piezoelectric ceramics driving piece.Piezoelectric ceramics driving piece with waveform substrate comprises substrate, a piezoelectric ceramic piece, is fixed on the electrode of substrate end; The two sides of piezoelectric ceramic piece has conductive layer respectively, it is characterized in that, described substrate has waved surface, and the described piezoelectric ceramic piece with conductive layer is bonded on the waved surface of described substrate respectively by binding agent, and the height of described electrode is substantially concordant with the crest of described waved surface.Substrate adopts waved surface the height of electrode can be set to substantially concordant with the crest of described waved surface, thus can not produce drop due to the existence of electrode when piezoelectric ceramic piece being bonded in substrate, affects quality and the qualification rate of piezoelectric ceramics driving piece.Meanwhile, due to the existence of substrate waved surface, make the bonding of piezoelectric ceramic piece and substrate more firm.Moreover this design can promote the modulus of elasticity of piezoelectric ceramics driving piece, thus obtain more excellent operating characteristics.
Description
Technical field
The utility model relates to the slide cam selector of textile machinery industry, is specifically related to a kind of slide cam selector piezoelectric ceramics driving piece.
Background technology
As everyone knows, at textile machinery industry, according to technological requirement, the operational mode controlling pin can make style.At present, general way adopts slide cam selector, particularly piezoelectric ceramic needle selecting machine to realize the automatic operating of pin.The driving mechanism mainly piezoelectric ceramics driving piece of piezoelectric ceramic needle selecting machine.Existing a kind of piezoelectric ceramics driving piece as shown in Figure 1, illustrated therein is the cross-sectional schematic of this piezoelectric ceramics driving piece.As shown in Figure 1, piezoelectric ceramic starts sheet 100 and comprises substantially smooth substrate 110, is bonded in piezoelectric ceramic piece 110a, 110b of substrate 110 both sides respectively, i.e. double wafer structure.Electrode 110c, 110d is respectively arranged with, as scale copper in the both sides of one end of substrate 110.In the one side of substrate 110 and the another side of counter substrate 110, be coated with silver layer 110a1,110a2 at piezoelectric ceramic piece 110a respectively, in the one side of substrate 110 and the another side of counter substrate 110, be coated with silver layer 110b1,110b2 at piezoelectric ceramic piece 110b respectively.Piezoelectric ceramic piece 110a is overlapped on the electrode 110c on substrate 110 by silver coating 110a1, piezoelectric ceramic piece 110b is overlapped on by silver coating 110b1 on the electrode 110d on substrate 110.Substrate 110 usually by insulating material as glass fibre is made.
There is following defect in this piezoelectric ceramics driving piece: is arranged on on-chip electrode because two piezoelectric ceramic pieces are overlapped on by silver layer, a drop certainly will be there is, i.e. the thickness of electrode 110c, 110d when piezoelectric ceramic piece 110a, 110b are bonded in substrate 110.In practice, the thickness of electrode 110c, 110d should control below 10 microns, otherwise the drop just likely formed due to this thickness when piezoelectric ceramic piece is bonded in substrate causes piezoelectric ceramic piece to rupture, and affects qualification rate and the quality of product.And by the thickness of electrode 110c, 110d, the THICKNESS CONTROL work in-process below 10 microns as scale copper is very difficult.
If the above-mentioned drop that formed due to thickness of electrode can be eliminated but do not affect the electrical connection of piezoelectric ceramic piece, by significant to the quality and qualification rate that improve piezoelectric ceramics driving piece.
Further, if can a kind of piezoelectric ceramics driving piece be designed, not only there is better globality and bond strength, and there is the modulus of elasticity of lifting, will be highly profitable.
Utility model content
The problems referred to above that the utility model exists for existing piezoelectric ceramics driving piece, devise a kind of novel piezoelectric ceramics driving piece.Particularly, two apparent surfaces of the substrate of this novel piezo-electric ceramic driving chip are not flat, but have waveform shape.
The technical solution of the utility model is: a kind of piezoelectric ceramics driving piece with waveform substrate, comprises substrate, piezoelectric ceramic piece, is fixed on the electrode of substrate end; The surface of piezoelectric ceramic piece has conductive layer respectively, it is characterized in that, described substrate has waved surface, and the described piezoelectric ceramic piece with conductive layer is bonded on the waved surface of described substrate respectively by binding agent, and the height of described electrode is substantially concordant with the crest of described waved surface.
Substrate adopts waved surface the height of electrode can be set to substantially concordant with the crest of described waved surface, thus drop can not be produced due to the existence of electrode when piezoelectric ceramic piece being bonded in substrate, affect quality and the qualification rate of piezoelectric ceramics driving piece.Meanwhile, due to the existence of substrate waved surface, make the bonding of piezoelectric ceramic piece and substrate more firm, thus increase the globality of piezoelectric ceramics driving piece.Moreover this design can promote the modulus of elasticity of piezoelectric ceramics driving piece, thus be conducive to the operating characteristics obtaining more excellent piezoelectric ceramics driving piece.
In a specific embodiment, the waveform of described waved surface is sinusoidal wave.
In a preferred embodiment, the vertical range between the crest of described sine wave and trough is between 50 microns to 300 microns, and the adjacent peaks of described sine wave and the peak-to-peak horizontal range of ripple are between 3 millimeters to 10 millimeters.This design is by considering the bulk strength of piezoelectric ceramic piece, operating characteristics and workability and drawing.
Piezoelectric ceramics driving piece of the present utility model can be used in the slide cam selector of textile industry.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of existing a kind of piezoelectric ceramics driving piece;
Fig. 2 is a kind of partial cutaway view schematic with the piezoelectric ceramics driving piece of waveform substrate of the present utility model.
Embodiment
For more clearly understanding the utility model, existing the utility model is described in further detail by reference to the accompanying drawings.Should be appreciated that, the embodiment of the present utility model described in accompanying drawing is only and the utility model use is described, does not form restriction of the present utility model.Protection range of the present utility model is limited by appending claims.
Should be appreciated that, accompanying drawing of the present utility model is only and the utility model use is described, not in proportion with true form accurate Drawing, therefore these accompanying drawings should not become restriction of the present utility model.
Fig. 2 show of the present utility model a kind of have waveform substrate the partial cutaway view schematic of piezoelectric ceramics driving piece.As shown in Figure 2, piezoelectric ceramics driving piece 200 comprises substrate 110 ', piezoelectric ceramic piece 120 ', 130 ' and electrode 110c ', 110d '.It is pointed out that piezoelectric ceramic piece 120 ', 130 ' respectively with conductive layer (not shown) on two apparent surface, as but be not limited to conductive silver slurry layer.Piezoelectric ceramic piece 120 ', 130 ' can select ability as piezoelectric ceramic piece known arbitrarily.
Substrate 110 ' in the utility model by insulating material, as but be not limited to glass fibre and make.An important feature of the present utility model is that substrate 110 ' has waved surface 1102 ', 1103 ', and is bonded by binding agent 150 ' by this waved surface and piezoelectric ceramic piece 120 ', 130 '.As shown in Figure 2, one of the present utility model is preferred embodiment adopt sinusoidal wave surface.
Electrode 110c ', 110d ' are arranged on the relative face of two of substrate 110 ' one end respectively, and the height of electrode 110c ', 110d ' is substantially concordant with the crest of sinusoidal wave 1102 ', 1103 '.Thus can not there is the drop problem of piezoelectric ceramic piece in the utility model, thus improve quality and the qualification rate of piezoelectric ceramic piece in assembling process due to electrode 110c ', 110d '.
Because binding agent 150 ' is also filled in the recess of substrate waved surface, add the surface area for boning, thus promote piezoelectric ceramic piece 120 ', bond strength between 130 ' and substrate 110 ', and increase the modulus of elasticity of whole piezoelectric ceramics driving piece 200, thus improve its operating characteristics.
By considering the complexity of the bulk strength of piezoelectric ceramics driving piece 200, operating characteristics and processing, sine wave in Fig. 2 crest and trough between vertical range between 50 microns to 300 microns, adjacent peaks and the peak-to-peak horizontal range of ripple are between 3 millimeters to 10 millimeters.
Although illustrate only the embodiment of sinusoidal undulating faces in Fig. 2, should be understood that for a person skilled in the art, other waveform, as but be not limited to square wave, truncation triangular wave etc. and may be used for the utility model equally, reach the purpose of this utility model.
Based on the description to the utility model preferred implementation, should be clear, the utility model limited by appending claims is not limited only to the specific detail set forth in specification above, and what do not depart from the utility model aim or scope may reach the purpose of this utility model equally to many apparent changes of the present utility model.
Claims (3)
1., with a piezoelectric ceramics driving piece for waveform substrate, comprise substrate, piezoelectric ceramic piece, be fixed on the electrode of substrate end; The two sides of piezoelectric ceramic piece has conductive layer respectively, it is characterized in that, described substrate has waved surface, and the described piezoelectric ceramic piece with conductive layer is bonded on the waved surface of described substrate respectively by binding agent, and the height of described electrode is substantially concordant with the crest of described waved surface.
2. the piezoelectric ceramics driving piece with waveform substrate according to claim 1, is characterized in that, the waveform of described waved surface is sinusoidal wave.
3. the piezoelectric ceramics driving piece with waveform substrate according to claim 2, it is characterized in that, vertical range between the crest of described sine wave and trough is between 50 microns to 300 microns, and the adjacent peaks of described sine wave and the peak-to-peak horizontal range of ripple are between 3 millimeters to 10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417118.4U CN204720481U (en) | 2015-06-17 | 2015-06-17 | With the piezoelectric ceramics driving piece of waveform substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417118.4U CN204720481U (en) | 2015-06-17 | 2015-06-17 | With the piezoelectric ceramics driving piece of waveform substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720481U true CN204720481U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520417118.4U Expired - Fee Related CN204720481U (en) | 2015-06-17 | 2015-06-17 | With the piezoelectric ceramics driving piece of waveform substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680300A (en) * | 2018-05-17 | 2018-10-19 | 西京学院 | A kind of substrate of piezoelectric transducer |
| CN110497773A (en) * | 2019-09-02 | 2019-11-26 | 黄河交通学院 | A kind of air conditioning for automobiles air flow regulator |
-
2015
- 2015-06-17 CN CN201520417118.4U patent/CN204720481U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680300A (en) * | 2018-05-17 | 2018-10-19 | 西京学院 | A kind of substrate of piezoelectric transducer |
| CN110497773A (en) * | 2019-09-02 | 2019-11-26 | 黄河交通学院 | A kind of air conditioning for automobiles air flow regulator |
| CN110497773B (en) * | 2019-09-02 | 2022-11-04 | 黄河交通学院 | Air flow adjusting device of automobile air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20210617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |