CN205246154U - Ultrasonic transducer structure - Google Patents
Ultrasonic transducer structure Download PDFInfo
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- CN205246154U CN205246154U CN201521079279.3U CN201521079279U CN205246154U CN 205246154 U CN205246154 U CN 205246154U CN 201521079279 U CN201521079279 U CN 201521079279U CN 205246154 U CN205246154 U CN 205246154U
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- transducer
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- piezoceramics piece
- ultrasonic transducer
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Abstract
The utility model belongs to acoustics, flow measurement field especially relate to an ultrasonic transducer structure, including transducer shell, piezoceramics piece, rubber pad, apron, transducer circuit board, the transducer shell is built -in to have the piezoceramics piece, and the negative pole of piezoceramics piece is pasted on the transducer shell, the transducer shell is by leading the integrative injection moulding of plastics, the layer thickness of leading of transducer shell is 1.5-2.5mm, is showing the structural strength who has improved ultrasonic transducer, lead sound layer surface for smooth mirror surface, more be difficult for the scale deposit than metal surface, the rubber pad is pressed at the piezoceramics piece anodally, the apron compresses tightly the rubber pad through the screw, realizes in aqueous sealed of piezoceramics piece, transducer circuit board is used for drawing the positive cathode conductor of piezoceramics piece.
Description
Technical field
The utility model belongs to acoustics, field of flow detection, relates in particular to a kind of ultrasonic transducer structure.
Background technology
Ultrasonic transducer has and transmits and receives hyperacoustic function, at discharge detection field, paired ultrasonic transducer is arranged on respectively to the two ends of flowmeter, by calculating ultrasonic transducer transmitting, receiving hyperacoustic time difference, can detects the flow velocity of current.
Be generally used for the ultrasonic transducer of low power consumption flow rate table; comprise a piezoelectric ceramic piece that 1.8～2.5mm is thick; cover one deck conductive layer at the both positive and negative polarity of piezoelectric ceramic piece; for not being flooded erosion, peels off protection conductive layer; can be at the stainless steel substrates of the bonding a slice 0.09mm thickness of the one side that need to contact water; in high temperature or hard water, its easily fouling of surface, affects hyperacoustic passing through.
In actual applications, instantaneous variation in water pressure or the high pressure in waterpipe directly born in the piezoelectric ceramics sector-meeting of said structure, for example new clothes pipeline leak test, and break, flowmeter bigger error was even lost efficacy.
Summary of the invention
The utility model object is to overcome the deficiency of above-mentioned technology, and a kind of high strength, stable performance, less scaling ultrasonic transducer structure are provided.
The technical solution of the utility model is:
A kind of ultrasonic transducer structure, comprise transducer shell, piezoelectric ceramic piece, rubber blanket, cover plate, converter circuitry plate composition, described transducer shell is built-in with piezoelectric ceramic piece, the negative pole of piezoelectric ceramic piece sticks on transducer shell, described transducer shell is by leading sound plastics integrated injection molding, the sound layer thickness of leading of described transducer shell is 1.5～2.5mm, the described sound layer surface of leading is for smooth mirror surface, described rubber blanket is pressed in piezoelectric ceramic piece positive pole, described cover plate is by screw in compression rubber blanket, realize the sealing of piezoelectric ceramic piece in water, described converter circuitry plate is for drawing the both positive and negative polarity wire of piezoelectric ceramic piece.
The beneficial effects of the utility model are:
By the transducer shell of leading sound plastics integrated injection molding, and thickness 1.5～2.5mm lead sound layer, significantly improved the structural strength of ultrasonic transducer, the plastics of smooth mirror surface are because surface tension is less, more less scaling than metal surface.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model
In figure: transducer shell 1, piezoelectric ceramic piece 2, leads sound layer 2.1, rubber blanket 3, cover plate 4,, screw 5, converter circuitry plate 6 both positive and negative polarity wires 7.
Detailed description of the invention:
1 pair of the utility model is further described by reference to the accompanying drawings:
A kind of ultrasonic transducer structure, comprise that transducer shell 1, piezoelectric ceramic piece 2, rubber blanket 3, cover plate 4, converter circuitry plate 6 form, described transducer shell 1 is built-in with piezoelectric ceramic piece 2, the negative pole of piezoelectric ceramic piece 2 sticks on leading on sound layer 2.1 of transducer shell 1, described rubber blanket 3 is pressed in the positive pole of piezoelectric ceramic piece 2, described cover plate 4 compresses rubber blanket 3 by screw 5, realize the sealing in water to piezoelectric ceramic piece 2, described converter circuitry plate 6 is for drawing the both positive and negative polarity wire 7 of piezoelectric ceramic piece 2.
Described transducer shell 1 is by leading sound plastics integrated injection molding, and the sound layer thickness of leading of described transducer shell 1 is 1.5～2.5mm, has ensured the structural strength of ultrasonic transducer, described in lead sound layer 2.1 surface and be plastics smooth mirror surface, more less scaling.
Claims (3)
1. a ultrasonic transducer structure, comprises transducer shell, piezoelectric ceramic piece, rubber blanket, cover plate, converter circuitry plate, it is characterized in that described transducer shell is by leading sound plastics integrated injection molding.
2. a kind of ultrasonic transducer structure according to claim 1, is characterized in that the sound layer thickness of leading of described transducer shell is 1.5～2.5mm.
3. a kind of ultrasonic transducer structure according to claim 2, leads sound layer surface for smooth mirror surface described in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079279.3U CN205246154U (en) | 2015-12-23 | 2015-12-23 | Ultrasonic transducer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079279.3U CN205246154U (en) | 2015-12-23 | 2015-12-23 | Ultrasonic transducer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205246154U true CN205246154U (en) | 2016-05-18 |
Family
ID=55945225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521079279.3U Active CN205246154U (en) | 2015-12-23 | 2015-12-23 | Ultrasonic transducer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205246154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908103A (en) * | 2015-12-23 | 2017-06-30 | 江苏迈拓智能仪表有限公司 | A kind of ultrasonic transducer structures |
| CN110487341A (en) * | 2019-07-23 | 2019-11-22 | 广东美的白色家电技术创新中心有限公司 | Ultrasonic flowmeter and its manufacturing method |
-
2015
- 2015-12-23 CN CN201521079279.3U patent/CN205246154U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908103A (en) * | 2015-12-23 | 2017-06-30 | 江苏迈拓智能仪表有限公司 | A kind of ultrasonic transducer structures |
| CN110487341A (en) * | 2019-07-23 | 2019-11-22 | 广东美的白色家电技术创新中心有限公司 | Ultrasonic flowmeter and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211178 5 Jiangning, Jiangsu Binjiang Development Zone, Nanjing Patentee after: Maxtor instrument Limited by Share Ltd Address before: 211178 5 Jiangning, Jiangsu Binjiang Development Zone, Nanjing Patentee before: Jiangsu Maituo Intelligent Meter Co., Ltd. |