CN202655213U - Ultrasonic transducer and corresponding ultrasonic flow sensor - Google Patents
Ultrasonic transducer and corresponding ultrasonic flow sensor Download PDFInfo
- Publication number
- CN202655213U CN202655213U CN 201220265131 CN201220265131U CN202655213U CN 202655213 U CN202655213 U CN 202655213U CN 201220265131 CN201220265131 CN 201220265131 CN 201220265131 U CN201220265131 U CN 201220265131U CN 202655213 U CN202655213 U CN 202655213U
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- ultrasonic transducer
- shell
- mounting
- ultrasonic
- piezoelectric ceramic
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Abstract
The utility model relates to an ultrasonic transducer and a corresponding ultrasonic flow sensor. A larger cavity is reserved at a mounting hole of the existing ultrasonic transducer and is not beneficial to exhaust of air, and therefore the ultrasonic transducer provided by the utility model comprises a piezoelectric ceramic wafer, a tube case and a sealing sheet, wherein the sealing sheet is formed by punching an aluminum bronze alloy sheet or nickel sheet; the piezoelectric ceramic wafer is pasted on the sealing sheet to form an ultrasonic compound vibrator and an emitting surface and is also provided with an outgoing line; a tube case main body is tubular; the sealing sheet is welded at one end of the tube case by virtue of tin soldering or silver soldering; the other end of the tube case is connected with a flange disc; the tube case is made from copper or copper alloy; and the piezoelectric ceramic wafer is just arranged in the tube case. The utility model also relates to the corresponding ultrasonic flow sensor. The ultrasonic transducer provided by the utility model has the advantages of simple structure, low production cost, high product yield, good tightness, strong emission signal and less attenuation, is beneficial to exhaust of air, can be widely applicable to liquid flow meters such as a water meter and an oil meter, and is especially applicable to various heat meters.
Description
Technical field
The utility model relates to a kind of ultrasonic transducer and corresponding ultrasonic flow sensor.
Background technology
Existing ultrasonic flow sensor comprises housing, and this housing comprises straight pipeline, and this straight pipeline is provided with two ultrasonic transducer installing holes, and is respectively equipped with ultrasonic transducer.Larger recess cavity is left in ultrasonic transducer installing hole and straight pipeline joint, be unfavorable for discharging air, and air makes dropout affect the measuring accuracy of flow to hyperacoustic transmission attenuation than conference.
If the minimizing internal cavities, ultrasonic transducer should all or part of insertion straight pipeline in, but existing ultrasonic transducer lacks suitable shell, can't directly insert in the straight pipeline.
The utility model content
The technical problems to be solved in the utility model is how to fill up the defects of prior art, and a kind of ultrasonic transducer is provided.
For solving the problems of the technologies described above, this ultrasonic transducer comprises piezoelectric ceramic piece and mounting, and mounting is by the aluminium bronze sheet or the nickel sheet is die-cut forms, and mounting sticks on piezoelectric ceramic piece, form the ultrasonic wave composite oscillator, and be furnished with lead-out wire, and it is characterized in that: it also comprises shell, described shell main body is in a tubular form, described mounting is welded on shell one end by soldering or silver soldering, the shell other end is connected with flange, and described shell is made by copper or copper alloy, and described piezoelectric ceramic piece just is arranged in the shell.
So design, shell adopt lower-cost copper or copper alloy (such as valve copper 57,59 etc.) to make, and it is comparatively convenient to process.Mounting is by the aluminium bronze sheet or the nickel sheet is die-cut forms, although aluminium bronze sheet or nickel sheet price are high, materials are few, and overall cost is not high, and the mounting even thickness that punches out, smooth, and yield rate is high, mounting and shell corrosion resistant, anti-aging.
The utility model adopts the low-temperature welding technology such as silver soldering or soldering, and mounting is not yielding, during use, in all or part of straight pipeline that stretches into the ultrasonic flow sensor housing of ultrasonic transducer, has reduced the recess cavity, can discharge more easily air.
As optimization, described shell one end inwall has locating slot in the annular, and described mounting just embeds in the interior locating slot of this annular.So design, accurate positioning, firm welding.
As optimization, the excircle of described mounting is provided with flange, and described flange is enclosed within on the shell.Flange is coated on the shell end, and is more firm.
As optimization, described shell one end outer wall has annular outside fix groove, and described flange is enclosed within on this annular outside fix groove.So design can keep the shell outer wall smooth.
As optimization, described mounting is provided with ring-shaped groove.So design transmits strong, and signal attenuation is little.
The utility model ultrasonic flow sensor comprises housing, this housing comprises straight pipeline, and this straight pipeline is provided with two ultrasonic transducer installing holes, and is respectively equipped with ultrasonic transducer, described ultrasonic transducer is aforementioned ultrasonic transducer, its all or one one of lower end stretch in the straight pipeline.
That the utility model ultrasonic transducer and corresponding ultrasonic flow sensor have is simple in structure, production cost is low, the finished product rate is higher, sealing better, transmit strong, signal attenuation is little, help to discharge the advantage such as air, be widely used in the liquid meters such as water meter, oil meter, be specially adapted to various ultrasonic heat meters.
Description of drawings
Below in conjunction with accompanying drawing this ultrasonic transducer is described further:
Fig. 1 is the cross-sectional view (dissecing along axis) of embodiment one shell and the mounting of this ultrasonic transducer;
Fig. 2 is the decomposition texture schematic diagram of ultrasonic transducer shell shown in Figure 1 and mounting;
Fig. 3 is the cross-sectional view (dissecing along axis) of embodiment two shells and the mounting of this ultrasonic transducer;
Fig. 4 is the decomposition texture schematic diagram of ultrasonic transducer shell shown in Figure 3 and mounting;
Fig. 5 is the cross-sectional view (dissecing along axis) of embodiment three shells and the mounting of this ultrasonic transducer;
Fig. 6 is the cross-sectional view (dissecing along axis) of embodiment four shells and the mounting of this ultrasonic transducer;
Fig. 7 is the structural representation of the utility model ultrasonic flow sensor.
Among the figure: 1 is that shell, 2 is that mounting, 3 is that flange, 4 is that annular interior locating slot, 5 is that flange, 6 is that annular outside fix groove, 7 is that ring-shaped groove, 8 is that straight pipeline, 9 is that ultrasonic transducer, 10 is that piezoelectric ceramic piece, 11 is that lead-out wire, 12 is that silver soldering layer or soldering layer, 13 are that housing, 14 is the ultrasonic transducer installing hole.
The specific embodiment
Embodiment one: shown in Fig. 1,2,7, this ultrasonic transducer comprises piezoelectric ceramic piece 10 and mounting 2, mounting 2 is by the aluminium bronze sheet or the nickel sheet is die-cut forms, mounting 2 sticks on piezoelectric ceramic piece 10, form the ultrasonic wave composite oscillator, and is furnished with lead-out wire 11, it is characterized in that: it also comprises shell 1, described shell 1 main body in a tubular form, described mounting 2 is welded on shell 1 one ends by soldering or silver soldering, shell 1 other end is connected with flange 3, and described shell 1 is made by copper or copper alloy, and described piezoelectric ceramic piece 10 just is arranged in the shell 1.Described shell 1 one end inwalls have locating slot 4 in the annular, and described mounting 2 just embeds in the interior locating slot 4 of this annular.
Embodiment two: as shown in Figure 3-4, the excircle of described mounting 2 is provided with flange 5, and described shell 1 one end outer walls have annular outside fix groove 6, and described flange 5 is enclosed within on this annular outside fix groove 6, and all the other structures are omited as described in embodiment 2.
Embodiment three: as shown in Figure 5, described mounting 2 is provided with ring-shaped groove 7, and all the other structures are omited as described in embodiment 1.
Embodiment four: as shown in Figure 6, described mounting 2 is provided with ring-shaped groove 7, and all the other structures are omited as described in embodiment 2.
As shown in Figure 7, this ultrasonic flow sensor comprises housing 13, this housing comprises straight pipeline 8, this straight pipeline 8 is provided with two ultrasonic transducer installing holes 14, and be respectively equipped with ultrasonic transducer, it is characterized in that: ultrasonic transducer is embodiment one described ultrasonic transducer 9, its all or one one of lower end stretch in the straight pipeline 8.
Claims (6)
1. ultrasonic transducer, comprise piezoelectric ceramic piece and mounting, mounting is by the aluminium bronze sheet or the nickel sheet is die-cut forms, and piezoelectric ceramic piece sticks on the mounting, form ultrasonic wave composite oscillator and the surface of emission, and be furnished with lead-out wire, and it is characterized in that: it also comprises shell, described shell main body is in a tubular form, described mounting is welded on shell one end by soldering or silver soldering, the shell other end is connected with flange, and described shell is made by copper or copper alloy, and described piezoelectric ceramic piece just is arranged in the shell.
2. ultrasonic transducer as claimed in claim 1 is characterized in that: described shell one end inwall has locating slot in the annular, and described mounting just embeds in this annular in the locating slot.
3. ultrasonic transducer as claimed in claim 1, it is characterized in that: the excircle of described mounting is provided with flange, and described flange is enclosed within on the shell.
4. ultrasonic transducer as claimed in claim 3, it is characterized in that: described shell one end outer wall has annular outside fix groove, and described flange is enclosed within on this annular outside fix groove.
5. such as the arbitrary described ultrasonic transducer of claim 1 to 4, it is characterized in that: described mounting is provided with ring-shaped groove.
6. ultrasonic flow sensor, it is characterized in that: comprise housing, this housing comprises straight pipeline, this straight pipeline is provided with two ultrasonic transducer installing holes, and be respectively equipped with ultrasonic transducer, it is characterized in that: ultrasonic transducer is the arbitrary described ultrasonic transducer of claim 1 to 5, and they are whole or the lower end is a part of stretches in the straight pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265131 CN202655213U (en) | 2012-06-07 | 2012-06-07 | Ultrasonic transducer and corresponding ultrasonic flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265131 CN202655213U (en) | 2012-06-07 | 2012-06-07 | Ultrasonic transducer and corresponding ultrasonic flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202655213U true CN202655213U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265131 Expired - Fee Related CN202655213U (en) | 2012-06-07 | 2012-06-07 | Ultrasonic transducer and corresponding ultrasonic flow sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202655213U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090915A (en) * | 2013-01-21 | 2013-05-08 | 大连环岛仪表有限公司 | Transducer capable of being directly applied to various ultrasonic flow meters |
| DE102015102762A1 (en) * | 2015-02-26 | 2016-09-01 | Sick Ag | Ultrasonic transducer and method for producing an ultrasonic transducer |
| CN107402050A (en) * | 2017-07-10 | 2017-11-28 | 汇中仪表股份有限公司 | The pressure-resistant resist freezing structure and method of a kind of sonac piezoelectric ceramic wafer |
| CN111141835A (en) * | 2020-01-09 | 2020-05-12 | 自然资源部第一海洋研究所 | Submarine sediment in-situ shear wave transmitting transducer |
| CN114083074A (en) * | 2021-12-09 | 2022-02-25 | 苏州声美达电子科技有限公司 | Production process of moving iron unit assembly with high welding quality |
| CN116174832A (en) * | 2023-04-21 | 2023-05-30 | 中国科学院合肥物质科学研究院 | Piezoelectric sensor probe design method |
-
2012
- 2012-06-07 CN CN 201220265131 patent/CN202655213U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090915A (en) * | 2013-01-21 | 2013-05-08 | 大连环岛仪表有限公司 | Transducer capable of being directly applied to various ultrasonic flow meters |
| CN103090915B (en) * | 2013-01-21 | 2015-03-18 | 大连环岛仪表有限公司 | Transducer capable of being directly applied to various ultrasonic flow meters |
| DE102015102762A1 (en) * | 2015-02-26 | 2016-09-01 | Sick Ag | Ultrasonic transducer and method for producing an ultrasonic transducer |
| CN107402050A (en) * | 2017-07-10 | 2017-11-28 | 汇中仪表股份有限公司 | The pressure-resistant resist freezing structure and method of a kind of sonac piezoelectric ceramic wafer |
| CN107402050B (en) * | 2017-07-10 | 2024-01-12 | 汇中仪表股份有限公司 | Pressure-resistant and freezing-resistant structure and method for piezoelectric ceramic wafer of ultrasonic sensor |
| CN111141835A (en) * | 2020-01-09 | 2020-05-12 | 自然资源部第一海洋研究所 | Submarine sediment in-situ shear wave transmitting transducer |
| CN114083074A (en) * | 2021-12-09 | 2022-02-25 | 苏州声美达电子科技有限公司 | Production process of moving iron unit assembly with high welding quality |
| CN116174832A (en) * | 2023-04-21 | 2023-05-30 | 中国科学院合肥物质科学研究院 | Piezoelectric sensor probe design method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20160607 |