CN203002555U - Piezoelectric ceramic atomizing energy conversion piece - Google Patents
Piezoelectric ceramic atomizing energy conversion piece Download PDFInfo
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- CN203002555U CN203002555U CN 201220716051 CN201220716051U CN203002555U CN 203002555 U CN203002555 U CN 203002555U CN 201220716051 CN201220716051 CN 201220716051 CN 201220716051 U CN201220716051 U CN 201220716051U CN 203002555 U CN203002555 U CN 203002555U
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- excircle
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Abstract
The utility model discloses a piezoelectric ceramic atomizing energy conversion piece. The piezoelectric ceramic atomizing energy conversion piece comprises a disk-like piezoelectric ceramic piece (1), wherein silver electrode layers (2 and 3) are respectively arranged on two faces of the piezoelectric ceramic piece; at least one annular groove (4) is formed in one face of the piezoelectric ceramic piece and far away from the edge of the piezoelectric ceramic piece by a certain distance; and the annular groove and the periphery of the piezoelectric ceramic piece are concentric. The emission amount of energy to the edge during the vibration of an atomizing piece is decreased by the annular groove in the piezoelectric ceramic atomizing energy conversion piece, the energy is concentrated in an effective atomizing area, the rigidity of the self structure of the atomizing piece is reduced, and stress applied to the atomizing piece during the vibration is reduced, so a lot of energy is used for forming fog drips, and driving voltage and driving power required by the atomizing piece are reduced.
Description
Technical field
The present invention relates to a kind of structure of Atomazing transducing chip of liquid, a kind of piezoelectric ceramics Atomazing transducing chip.
Background technology
Atomazing transducing chip is industrial humidifier, household humidifier, and the parts of the device such as humidifier of vehicle, champignon utilize the ultrasonic vibration of Atomazing transducing chip to make the liquid surface cavitation form droplet, spread to aerial.Existing Atomazing transducing chip is generally the piezoelectric ceramic piece of a slice circular plate type, can be plate shaped, can be also spheric, is making metal electrode layer (being mainly silver, titanium, nickel) on two faces of piezoelectric ceramic piece.The Atomazing transducing chip stock size is: diameter 16mm ~ 25mm, thickness is at 0.8mm ~ 1.5mm.Electrode is generally silver electrode, is obtained by sintering after the silver slurry.Used thickness extensional vibration mode during Atomazing transducing chip work.Driving voltage and the driving power of this Atomazing transducing chip are had relatively high expectations, and driving voltage generally needs more than 24V, and driving power needs just can not haze when low-voltage and low-power or haze very little more than 15W.
Summary of the invention
It is lower that the present invention is intended to propose a kind of driving voltage, the structure of the Atomazing transducing chip that driving power is less, a kind of piezoelectric ceramics Atomazing transducing chip.
This piezoelectric ceramics Atomazing transducing chip comprises the piezoelectric ceramic piece of a circular plate type, respectively be manufactured with one deck silver electrode layer on two faces of piezoelectric ceramic piece, wherein on piezoelectric ceramic piece face, the edge certain distance of tripping electroceramics sheet has at least one annular groove, and this annular groove is concentric with the excircle of piezoelectric ceramic piece.
The amount that energy when the annular groove on this piezoelectric ceramics Atomazing transducing chip has weakened the atomizing piece vibration is dispersed to the edge, make concentration of energy in the zone that effectively atomizes, reduced simultaneously the rigidity of atomizing piece self structure, the stress that need overcome when making its vibration reduces, thereby make more energy be used to form droplet, and driving voltage and the driving power that atomizing piece needs reduced.
Description of drawings
Fig. 1 is the first structure chart of piezoelectric ceramics Atomazing transducing chip;
Fig. 2 is the upward view of the piezoelectric ceramics Atomazing transducing chip in Fig. 1;
Fig. 3 and Fig. 4 are the second structure chart of piezoelectric ceramics Atomazing transducing chip;
Fig. 5 is the third structure chart of piezoelectric ceramics Atomazing transducing chip;
Fig. 6 is the 4th kind of structure chart of piezoelectric ceramics Atomazing transducing chip;
Fig. 7 is the 5th kind of structure chart of piezoelectric ceramics Atomazing transducing chip;
Fig. 8 is the 6th kind of structure chart of piezoelectric ceramics Atomazing transducing chip.
The specific embodiment
As depicted in figs. 1 and 2, this piezoelectric ceramics Atomazing transducing chip comprises the piezoelectric ceramic piece 1 of a circular plate type, respectively be manufactured with one deck silver electrode layer 2,3 on two faces of piezoelectric ceramic piece, on the edge certain distance of a face tripping electroceramics sheet of piezoelectric ceramic piece, at least one annular groove 4 is arranged, this annular groove is concentric with the excircle of piezoelectric ceramic piece.The silver layer of electrode 2 can be extended down to from the edge of ceramic wafers the outside with the groove of electrode 3 the same faces.
As shown in Figure 1, piezoelectric ceramic piece 1 in this piezoelectric ceramics Atomazing transducing chip can be plate shaped, described groove 4 is one, the cross section of groove is orthogonal, the width a of groove can be 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, the degree of depth b of groove can be 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, and the distance c of the outward flange of groove and piezoelectric ceramic piece excircle is to be 0.1 ~ 0.2 times of piezoelectric ceramic piece diameter.
The structure of this piezoelectric ceramics Atomazing transducing chip also can be as shown in Figure 5, piezoelectric ceramic piece 1 is plate shaped, groove 4 is one, it is semicircle that the cross section of groove becomes, the width a of groove can be 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, and the distance c of the outward flange of groove and piezoelectric ceramic piece excircle is to be 0.1 ~ 0.2 times of piezoelectric ceramic piece diameter.
The structure of this piezoelectric ceramics Atomazing transducing chip also can be as shown in Figure 6, piezoelectric ceramic piece 1 is plate shaped, groove 4 is one, and groove floor arrives the excircle place of piezoelectric ceramic piece to the border extended of piezoelectric ceramic piece, edge at piezoelectric ceramic piece forms a low step 5, the height d of this step can be 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, and the width f of this step can be 0.15 of piezoelectric ceramic piece diameter ~ 0. 25 times.
the structure of this piezoelectric ceramics Atomazing transducing chip also can be as shown in Figure 7, piezoelectric ceramic piece 1 is plate shaped, groove 4 is two, article two, all orthogonal or other shape in the cross section of groove, article two, the width a of groove can be 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, article two, the degree of depth b of groove can be 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, the distance c of the excircle of the groove that diameter is larger and piezoelectric ceramic piece excircle is 0.1 ~ 0.2 times of piezoelectric ceramic piece diameter, between the inner periphery of the groove that the excircle of the groove that diameter is less and diameter are larger is 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness apart from e.
The structure of this piezoelectric ceramics Atomazing transducing chip also can be as shown in Figure 8, piezoelectric ceramic piece 1 is spheric, described groove 4 is one, be positioned on the convex surface of potsherd, the width a of groove can be 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, the degree of depth b of groove is 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, and the distance c of the excircle of groove and piezoelectric ceramic piece excircle can be 0.1 ~ 0.2 times of ceramics cross-sectional arc length.
Groove in this piezoelectric ceramics Atomazing transducing chip can make in order to the below method: 1, add at the piezoelectric ceramic piece product molding and directly make by mould man-hour; 2, make by machining before the piezoelectric ceramic piece sintering; 3, after the piezoelectric ceramic piece sintering or product surface metallization operation make by ultrasonic wave (or laser) cutting again after completing; 4, directly make groove with the method for machining or ultrasonic wave (or laser) cutting on the Atomazing transducing chip that has completed.
When this piezoelectric ceramics Atomazing transducing chip is installed, groove surface is in a side of contact liq not.
With piezoelectric ceramics Atomazing transducing chip of the present invention and same size but unnotched Atomazing transducing chip compares test, result is as follows:
Structure is plate shaped piezoelectric ceramics Atomazing transducing chip as shown in Figure 1, piezoelectric ceramic piece diameter 20mm, piezoelectric ceramic piece thickness 1.23 mm, groove width a=1mm, groove depth b=0.5mm, c=2.5mm;
Vibration frequency 1.7 MHZ,
Driving voltage 24 V,
Driving power 12 W,
Atomization quantity 130 ml/h.
The unnotched Atomazing transducing chip of the same specification that contrasts:
Vibration frequency 1.7 MHZ,
Driving voltage 24 V,
Driving power 12 W,
Atomization quantity 90 ml/h.
Structure is plate shaped piezoelectric ceramics Atomazing transducing chip as shown in Figure 5, piezoelectric ceramic piece diameter 20mm, piezoelectric ceramic piece thickness 1.23 mm, groove width a=1, mm, c=2 mm;
Vibration frequency 1.7 MHZ,
Driving voltage 24 V,
Driving power 12 W,
Atomization quantity 125ml/h.
The unnotched Atomazing transducing chip of the same specification that contrasts:
Vibration frequency 1.7 MHZ,
Driving voltage 24 V,
Driving power 12 W,
Atomization quantity 90ml/h.
Structure is plate shaped piezoelectric ceramics Atomazing transducing chip as shown in Figure 1, piezoelectric ceramic piece diameter 20mm, and piezoelectric ceramic piece thickness 0.88mm, groove width a=1mm, groove depth b=0.5, mm, c=2.5mm;
Vibration frequency 2.4 MHZ,
Driving voltage 16 V,
Driving power 8 W,
Atomization quantity 20 ml/h.
The unnotched Atomazing transducing chip of the same specification that contrasts:
Vibration frequency 2.4 MHZ,
Driving voltage 16 V,
Driving power 8 W,
Atomization quantity 10 ml/h.
By above-described embodiment as can be known, the atomization ability of this piezoelectric ceramics Atomazing transducing chip is not with respect to having reeded planar chip to increase by 25% ~ 100%, the degree of depth of groove, and width, and shape also has certain impact to the performance of atomizing.
Claims (8)
1. piezoelectric ceramics Atomazing transducing chip, the piezoelectric ceramic piece (1) that comprises a circular plate type, respectively be manufactured with one deck silver electrode layer (2,3) on two faces of piezoelectric ceramic piece, the edge certain distance that it is characterized in that tripping electroceramics sheet on a face of piezoelectric ceramic piece has at least one annular groove (4), and this annular groove is concentric with the excircle of piezoelectric ceramic piece.
2. piezoelectric ceramics Atomazing transducing chip as claimed in claim 1, is characterized in that described annular groove (4) is toroidal cavity.
3. piezoelectric ceramics Atomazing transducing chip as claimed in claim 1, is characterized in that described annular groove (4) is the circular groove less than 360 degree.
4. piezoelectric ceramics Atomazing transducing chip as claimed in claim 2 or claim 3, it is characterized in that described piezoelectric ceramic piece (1) is plate shaped, described groove (4) is one, the cross section of groove is orthogonal, the width of groove (a) is 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, the degree of depth of groove (b) is 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, and the distance (c) of the outward flange of groove and piezoelectric ceramic piece excircle is 0.1 ~ 0.2 times of piezoelectric ceramic piece diameter.
5. piezoelectric ceramics Atomazing transducing chip as claimed in claim 2 or claim 3, it is characterized in that described piezoelectric ceramic piece (1) is plate shaped, described groove (4) is one, it is semicircle that the cross section of groove becomes, the width of groove (a) is 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, and the distance (c) of the outward flange of groove and piezoelectric ceramic piece excircle is 0.1 ~ 0.2 times of piezoelectric ceramic piece diameter.
6. piezoelectric ceramics Atomazing transducing chip as claimed in claim 2, it is characterized in that described piezoelectric ceramic piece (1) is plate shaped, described groove (4) is one, and groove floor arrives the excircle place of piezoelectric ceramic piece to the border extended of piezoelectric ceramic piece, edge at piezoelectric ceramic piece forms a low step (5), the height of this step (d) is 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, and the width of this step (f) is 0.15 of piezoelectric ceramic piece diameter ~ 0. 25 times.
7. piezoelectric ceramics Atomazing transducing chip as claimed in claim 2 or claim 3, it is characterized in that described piezoelectric ceramic piece (1) is plate shaped, described groove (4) is two, article two, the width a of groove is 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, article two, the degree of depth b of groove is 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, the distance c of the excircle of the groove that diameter is larger and piezoelectric ceramic piece excircle is 0.1 ~ 0.2 times of piezoelectric ceramic piece diameter, between the inner periphery of the groove that the excircle of the groove that diameter is less and diameter are larger is 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness apart from e.
8. piezoelectric ceramics Atomazing transducing chip as claimed in claim 2 or claim 3, it is characterized in that described piezoelectric ceramic piece (1) is spheric, described groove (4) is one, be positioned on the convex surface of potsherd, the width of groove (a) is 0.5 ~ 1.5 times of piezoelectric ceramic piece thickness, the degree of depth b of groove is 0.3 ~ 0.6 times of piezoelectric ceramic piece thickness, and the distance c of the excircle of groove and piezoelectric ceramic piece excircle is 0.1 ~ 0.2 times of piezoelectric ceramic piece cross-sectional arc length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220716051 CN203002555U (en) | 2012-12-21 | 2012-12-21 | Piezoelectric ceramic atomizing energy conversion piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220716051 CN203002555U (en) | 2012-12-21 | 2012-12-21 | Piezoelectric ceramic atomizing energy conversion piece |
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| CN203002555U true CN203002555U (en) | 2013-06-19 |
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| CN 201220716051 Expired - Lifetime CN203002555U (en) | 2012-12-21 | 2012-12-21 | Piezoelectric ceramic atomizing energy conversion piece |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044668A (en) * | 2020-09-03 | 2020-12-08 | 桐乡清锋科技有限公司 | Leadless piezoelectric atomization element and vibrating sieve hole type atomizer |
| CN114260133A (en) * | 2021-12-27 | 2022-04-01 | 广州大学 | Piezoelectric type atomizing device |
| CN114345826A (en) * | 2021-12-28 | 2022-04-15 | 北京东方金荣超声电器有限公司 | Megasonic transmitting device for wafer cleaning and sonic cleaning system |
-
2012
- 2012-12-21 CN CN 201220716051 patent/CN203002555U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044668A (en) * | 2020-09-03 | 2020-12-08 | 桐乡清锋科技有限公司 | Leadless piezoelectric atomization element and vibrating sieve hole type atomizer |
| CN114260133A (en) * | 2021-12-27 | 2022-04-01 | 广州大学 | Piezoelectric type atomizing device |
| CN114345826A (en) * | 2021-12-28 | 2022-04-15 | 北京东方金荣超声电器有限公司 | Megasonic transmitting device for wafer cleaning and sonic cleaning system |
| CN114345826B (en) * | 2021-12-28 | 2023-01-03 | 北京东方金荣超声电器有限公司 | Megasonic transmitting device for cleaning wafer and sonic cleaning system |
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| GR01 | Patent grant | ||
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Granted publication date: 20130619 |