CN204575154U - A kind of lead type amplitude high sensitivity ultrasonic sensor - Google Patents
A kind of lead type amplitude high sensitivity ultrasonic sensor Download PDFInfo
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- CN204575154U CN204575154U CN201520308841.9U CN201520308841U CN204575154U CN 204575154 U CN204575154 U CN 204575154U CN 201520308841 U CN201520308841 U CN 201520308841U CN 204575154 U CN204575154 U CN 204575154U
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- hole
- ultrasonic sensor
- sealing cap
- high sensitivity
- lead type
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Abstract
The utility model relates to a kind of lead type amplitude high sensitivity ultrasonic sensor, comprise the housing and sealing cap that are tightly connected, sealing cap adopts stainless steel, thickness is only 0.06 ~ 0.08mm, the inner side of sealing cap directly contacts with ceramic chip, bonding without the need to fluid sealant, adopt the structure of ultrasonic sensor of the present utility model, ceramic chip is except realizing its inherent function, also can be used as skeleton, play the role of pressure, realize the free oscillation of sealing cap, there is amplitude, highly sensitive advantage, also there is good waterproof seal and compressive resistance simultaneously, reliability is high, not fragile, long service life and degree of accuracy is high.
Description
Technical field
The utility model relates to a kind of sensor, is applicable to calorimeter or water meter, is particularly useful for calorimeter or the water meter of low discharge, specifically, relates to a kind of lead type amplitude high sensitivity ultrasonic sensor, belongs to flowmeter technology field.
Background technology
Ultrasonic sensor is the sensor utilizing hyperacoustic characteristic to develop.Ultrasound wave is the mechanical wave of a kind of vibration frequency higher than sound wave, is occurred to vibrate to produce by transducing wafer under the excitation of voltage, and it has, and frequency is high, wavelength is short, diffraction phenomenon is little, particularly good directionality, ray and the features such as direction propagation can be become.Ultrasound wave is very large to the penetrating power of liquid, solid, and especially in the opaque solid of sunlight, it can penetrate the degree of depth of tens meters.Ultrasound wave is encountered impurity or interphase and can be produced significantly to reflect to form and be reflected into echo, encounters live animal physical efficiency and produces Doppler effect.Scales based on Ultrasonic characteristics development is " ultrasonic sensor ", is widely used in the aspects such as industry, national defence, biomedicine.
At present conventional ultrasonic sensor comprises housing and sealing cap, sealing cap by fluid sealant and case bonding, when sealing cap thickness is larger, amplitude and the sensitivity of ultrasonic sensor are lower, can not effectively detect the heat or the water yield etc. of low discharge, degree of accuracy is low, and error is large; And when sealing cap thickness is lower, waterproof seal and the compressive resistance of ultrasonic sensor are poor, fragile, reliability is low.
Utility model content
Problem to be solved in the utility model is for above problem, a kind of lead type amplitude high sensitivity ultrasonic sensor is provided, both there is amplitude, highly sensitive advantage, there is again good waterproof seal and compressive resistance, reliability is high, not fragile, long service life and degree of accuracy is high.
For solving the problem, the technical scheme that the utility model adopts is: a kind of lead type amplitude high sensitivity ultrasonic sensor, comprise the housing and sealing cap that are tightly connected, it is characterized in that: the thickness of described sealing cap is 0.06 ~ 0.08mm, is provided with ceramic chip in the cavity of sealing cap.
A kind of prioritization scheme, described housing comprises the Part I and Part II that connect as one, and the diameter of Part I is less than the diameter of Part II.
Another kind of prioritization scheme, run through between described Part I and Part II and have through hole, through hole is communicated with groove near one end of Part I.
Another prioritization scheme, described through hole comprises the first through hole and the second through hole, and the first through hole and the second through hole are distinguished tapered, and the first through hole is arranged on the side near Part I, and the diameter of the second through hole stub end is not more than the diameter of the little head end of the first through hole.
Further prioritization scheme, be provided with the first cavity for holding ceramic chip in described Part I, the first cavity is communicated with through hole.
Further prioritization scheme, be provided with the second cavity for holding wiring board in described Part II, the second cavity is communicated with through hole.
Further prioritization scheme, described ceramic chip is connected with wiring board, and wiring board is connected with lead-in wire, and wiring board is fixed in the cavity of housing by potting compound sealing.
The utility model takes above technical scheme, have the following advantages: sealing cap adopts stainless steel, thickness is only 0.06 ~ 0.08mm, the inner side of sealing cap directly contacts with ceramic chip, bonding without the need to fluid sealant, adopt the structure of ultrasonic sensor of the present utility model, ceramic chip is except realizing its inherent function, also can be used as skeleton, play the role of pressure, realize the free oscillation of sealing cap, there is amplitude, highly sensitive advantage, also there is good waterproof seal and compressive resistance simultaneously, reliability is high, not fragile, long service life and degree of accuracy is high.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of ultrasonic sensor in the utility model embodiment;
Accompanying drawing 2 is structural representations of the utility model embodiment middle shell.
In figure:
1-housing, 11-Part I, 12-Part II, 13-first cavity, 14-groove, 15-first through hole, 16-second through hole, 17-second cavity, 2-sealing cap, 21-sealing cap body, 22-kink, 3-ceramic chip, 4-wiring board, 5-potting compound, 6-goes between, 7-connecting elements.
Embodiment
Embodiment, as shown in Figure 1, a kind of lead type amplitude high sensitivity ultrasonic sensor, comprise the housing 1 and sealing cap 2 that are tightly connected, ceramic chip 3 is provided with in the cavity of housing 1, one end of ceramic chip 3 is connected with sealing cap 2, the other end of ceramic chip 3 is connected with wiring board 4, by connecting elements 7 conducting between ceramic chip 3 and wiring board 4, in the present embodiment, connecting elements 7 selects copper wire, connecting elements 7 is for realizing the signal transmission between ceramic chip 3 and wiring board 4, wiring board 4 is connected with lead-in wire 6, wiring board 4 is fixed in the cavity of housing 1 by potting compound 5 sealing.
Sealing cap 2 adopts stainless steel, sealing cap 2 comprises sealing cap body 1, the U-shaped structure of sealing cap body 1 in one end open, and the openend of sealing cap body 1 is connected with the kink 22 bent laterally, ringwise, the thickness of described sealing cap 2 is 0.06 ~ 0.08mm to kink 22.
As shown in Figure 2, housing 1 comprises the Part I 11 and Part II 12 that connect as one, Part I 11 and Part II 12 are respectively in cylindric, and the axis of Part I 11 and Part II 12 is on same straight line, and the diameter of Part I 11 is less than the diameter of Part II 12.
Sealing cap body 21 is arranged on the periphery of Part I 11, and kink 22 is fitted on the end face that Part II 12 is connected with Part I 11.
The first cavity 13, first cavity 13 is provided with for holding ceramic chip 3 in Part I 11.
The second cavity 17 is provided with in Part II 12, second cavity 17 is for holding wiring board 4, run through between second cavity 17 and the first cavity 13 and have through hole, through hole comprises the first through hole 15 and the second through hole 16, first through hole 15 and the second through hole 16 are distinguished tapered, the stub end of the first through hole 15 is communicated with the first cavity 13, the little head end of the first through hole 15 is communicated with the stub end of the second through hole 16, the diameter of the second through hole 16 stub end is not more than the diameter of the little head end of the first through hole 15, the little head end of the second through hole 16 is communicated with the second cavity 17, the side of the first through hole 15 stub end is connected with groove 14, groove 14 and through hole are for holding the connecting elements 7 between ceramic chip 3 and wiring board 4.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a lead type amplitude high sensitivity ultrasonic sensor, comprise the housing (1) and sealing cap (2) that are tightly connected, it is characterized in that: the thickness of described sealing cap (2) is 0.06 ~ 0.08mm, is provided with ceramic chip (3) in the cavity of sealing cap (2).
2. a kind of lead type amplitude high sensitivity ultrasonic sensor as claimed in claim 1, it is characterized in that: described housing (1) comprises the Part I (11) and Part II (12) that connect as one, and the diameter of Part I (11) is less than the diameter of Part II (12).
3. a kind of lead type amplitude high sensitivity ultrasonic sensor as claimed in claim 2, it is characterized in that: running through between described Part I (11) and Part II (12) has through hole, and through hole is communicated with groove (14) near one end of Part I (11).
4. a kind of lead type amplitude high sensitivity ultrasonic sensor as claimed in claim 3, it is characterized in that: described through hole comprises the first through hole (15) and the second through hole (16), first through hole (15) and the second through hole (16) are distinguished tapered, first through hole (15) is arranged on the side near Part I (11), and the diameter of the second through hole (16) stub end is not more than the diameter of the first through hole (15) little head end.
5. a kind of lead type amplitude high sensitivity ultrasonic sensor as claimed in claim 2, is characterized in that: be provided with the first cavity (13) for holding ceramic chip in described Part I (11), the first cavity (13) is communicated with through hole.
6. a kind of lead type amplitude high sensitivity ultrasonic sensor as claimed in claim 2, is characterized in that: be provided with the second cavity (17) for holding wiring board in described Part II (12), the second cavity (17) is communicated with through hole.
7. a kind of lead type amplitude high sensitivity ultrasonic sensor as claimed in claim 1, it is characterized in that: described ceramic chip (3) is connected with wiring board (4), wiring board (4) is connected with lead-in wire (6), and wiring board (4) is fixed in the cavity of housing (1) by potting compound (5) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308841.9U CN204575154U (en) | 2015-05-14 | 2015-05-14 | A kind of lead type amplitude high sensitivity ultrasonic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308841.9U CN204575154U (en) | 2015-05-14 | 2015-05-14 | A kind of lead type amplitude high sensitivity ultrasonic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204575154U true CN204575154U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520308841.9U Expired - Fee Related CN204575154U (en) | 2015-05-14 | 2015-05-14 | A kind of lead type amplitude high sensitivity ultrasonic sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204575154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916339A (en) * | 2016-05-31 | 2016-08-31 | 天津市建筑设计院 | Acceleration sensor waterproof device and method |
| 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
- 2015-05-14 CN CN201520308841.9U patent/CN204575154U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916339A (en) * | 2016-05-31 | 2016-08-31 | 天津市建筑设计院 | Acceleration sensor waterproof device and method |
| 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 | ||
| 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: 20150819 Termination date: 20180514 |