CN204630626U - Pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal - Google Patents
Pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal Download PDFInfo
- Publication number
- CN204630626U CN204630626U CN201520308843.8U CN201520308843U CN204630626U CN 204630626 U CN204630626 U CN 204630626U CN 201520308843 U CN201520308843 U CN 201520308843U CN 204630626 U CN204630626 U CN 204630626U
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- China
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- ultrasonic sensor
- high sensitivity
- sealing cap
- side seal
- pin type
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- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to a kind of side seal and draws pin type amplitude high sensitivity ultrasonic sensor, comprise the housing and sealing cap that are tightly connected, the junction of housing and sealing cap lower end is provided with embedded seal groove, seal groove ringwise, for holding O-ring seal, during use, the O-ring seal sealing contact formation linear sealing that sealing cap is embedded, good sealing effect, has relieve stresses and not easily aging advantage; The sidewall of simultaneously housing is also provided with seal groove, further ensures sealing effectiveness; Ultrasonic sensor adopts the structure of drawing pin type, easy to use; Ceramic chip is directly connected with sealing cap, and without the need to adhesive linkage, ceramic chip plays the role of pressure to sealing cap, has amplitude, to receive and the advantage that transmits in high sensitivity, and compact.
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 side seal and draws pin type amplitude high sensitivity ultrasonic sensor, belong 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, and sealing cap is by fluid sealant and case bonding, and amplitude and the sensitivity of ultrasonic sensor are lower, and can not effectively detect the heat of low discharge or the water yield etc., degree of accuracy is low, and error is large; Under hot and humid environment, long-term work easily causes aging, and then affects the use of ultrasonic sensor.
Utility model content
Problem to be solved in the utility model is for above problem, a kind of side seal is provided to draw pin type amplitude high sensitivity ultrasonic sensor, both there is amplitude, highly sensitive advantage, there is again good waterproof seal, high-temp resisting high-humidity resisting, not easily aging, reliability is high, not fragile, long service life, degree of accuracy are high and easy to use.
For solving the problem, the technical scheme that the utility model adopts is: pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal, comprise the housing and sealing cap that are tightly connected, it is characterized in that: the junction of described housing and sealing cap is provided with the ring groove for holding O-ring seal;
The sidewall of described housing is provided with the side seal groove of annular.
A kind of prioritization scheme, described housing comprises Part II, and one end of Part II is connected with Part I, and the other end of Part II is connected with Part III, the largest diameter of Part II in three parts.
Another kind of prioritization scheme, described ring groove is positioned at the periphery of Part I, and the bottom surface of ring groove is lower than the joint face of Part II and Part I.
Another 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.
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, be provided with ceramic chip between described housing and sealing cap, ceramic chip is connected with wiring board, and wiring board is electrically connected with and draws pin, and wiring board is fixed in the cavity of housing by potting compound sealing.
A kind of prioritization scheme, described Part II) be provided with the 3rd cavity, the 3rd cavity is arranged on the periphery of Part III.
Another kind of prioritization scheme, described 3rd cavity is evenly distributed in several along Part II, is provided with dowel between adjacent two the 3rd cavitys.
Another prioritization scheme, described sealing cap comprises the U-shaped sealing cap body be made up of titanium alloy, and the openend of sealing cap body is connected with the kink bent laterally;
The thickness of described sealing cap body and kink is 0.5mm.
The utility model takes above technical scheme, have the following advantages: the junction of housing and sealing cap lower end is provided with embedded seal groove, seal groove ringwise, for holding O-ring seal, during use, the O-ring seal sealing contact formation linear sealing that sealing cap is embedded, good sealing effect, has relieve stresses and not easily aging advantage; Sidewall is also provided with seal groove simultaneously, further ensures sealing effectiveness; Adopt the structure of drawing pin type, easy to use; Ceramic chip is directly connected with sealing cap, and without the need to adhesive linkage, ceramic chip plays the role of pressure to sealing cap, has amplitude, to receive and the advantage that transmits in high sensitivity, and compact.
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 for the utility model embodiment middle shell;
Accompanying drawing 3 is another structural representations of object in the utility model embodiment.
In figure:
1-housing, 11-Part I, 111-first cavity, 12-Part II, 121-ring groove, 122-side seal groove, 123-first through hole, 124-groove, 125-second through hole, 126-the 3rd cavity, 127-dowel, 128-second cavity, 13-Part III, 131-draws pin hole, 2-sealing cap, 21-sealing cap body, 22-kink, 23-hold-down ring, 3-ceramic chip, 4-wiring board, 5-potting compound, 6-draws pin, 7-connecting elements, 8-O-ring seal.
Embodiment
Embodiment, as shown in Figure 1, pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal, comprise the housing 1 and sealing cap 2 that are tightly connected, housing 1 is provided with O-ring seal 8 with the junction of sealing cap 2, housing 1 is provided with away from one end of sealing cap 2 and draws pin 6, 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 with draw pin 6 and be electrically connected, wiring board 4 is fixed in the cavity of housing 1 by potting compound 5 sealing.
Sealing cap 2 comprises sealing cap body 21, the U-shaped structure of sealing cap body 21 in one end open, the openend of sealing cap body 21 is connected with the kink 22 bent laterally, kink 22 ringwise, sealing cap body 21 and kink 22 adopt titanium alloy to make, and thickness is about 0.5mm, and the periphery of sealing cap body 21 is set with hold-down ring 23, hold-down ring 23, for compressing kink 22, makes kink 22 and housing 1 fit tightly.
As shown in Figures 2 and 3, housing 1 comprises Part II 12, Part II 12 is in cylindric, one end of Part II 12 is connected with Part I 11, the other end of Part II 12 is connected with Part III 13, Part I 11 and Part III 13 are respectively in cylindric, and the axis of Part I 11, Part II 12 and Part III 13 is located on the same line, the largest diameter of Part II 12 in three parts.
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.
Part I 11 is provided with ring groove 121 with the junction of Part II 12, ring groove 121 is positioned on the Part II 12 of the periphery of Part I 11, the bottom surface of ring groove 121 is lower than the joint face of Part II 12 with Part I 11, that is: ring groove 121 is in embedded, for holding O-ring seal.
The side of Part II 12 is provided with the side seal groove 122 of annular, has certain distance respectively between the upper and lower end face of side seal groove 122 and Part II 12.
Part III 13 is provided with away from one end of Part I 11 and draws pin hole 132, draw pin hole 132 for holding ultrasonic sensor with drawing pin 6, draw pin hole 132 to arrange along the axial direction of housing 1, draw pin hole 132 and be provided with two, two are drawn pin hole 132 line centered by the axis of housing 1 and are symmetrical arranged.
The first cavity 111, first cavity 111 is provided with for holding ceramic chip 3 in Part I 11.
The second cavity 128 is provided with in Part II 12, and the second cavity 128 runs through Part III 13, second cavity 128 is for holding wiring board 4, run through between second cavity 128 and the first cavity 111 and have through hole, through hole comprises the first through hole 123 and the second through hole 125, first through hole 123 is tapered, the stub end of the first through hole 123 is communicated with the first cavity 111, the little head end of the first through hole 123 is communicated with the second through hole 125, second through hole 125 is in straight-tube shape, the side of the first through hole 123 stub end is connected with groove 124, groove 124 and through hole are for holding the connecting elements 7 between ceramic chip 3 and wiring board 4.
The 3rd cavity 126 is provided with between Part II 12 and Part III 13,3rd cavity 126 is arranged on the one end near Part III 13 on Part II 12,3rd cavity 126 is evenly distributed in several along Part II 12, is provided with dowel 127 between adjacent two the 3rd cavitys 126.
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 (10)
1. pin type amplitude high sensitivity ultrasonic sensor is drawn in a side seal, comprise the housing (1) and sealing cap (2) that are tightly connected, it is characterized in that: the junction of described housing (1) and sealing cap (2) is provided with the ring groove (121) for holding O-ring seal;
The sidewall of described housing (1) is provided with the side seal groove (122) of annular.
2. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 1, it is characterized in that: described housing (1) comprises Part II (12), one end of Part II (12) is connected with Part I (11), the other end of Part II (12) is connected with Part III (13), the largest diameter of Part II (12) in three parts.
3. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 2, it is characterized in that: described ring groove (121) is positioned at the periphery of Part I (11), the bottom surface of ring groove (121) is lower than the joint face of Part II (12) with Part I (11).
4. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal 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 (124) near one end of Part I (11).
5. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 4, it is characterized in that: be provided with the first cavity (111) for holding ceramic chip in described Part I (11), the first cavity (111) is communicated with through hole.
6. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 4, it is characterized in that: be provided with the second cavity (128) for holding wiring board in described Part II (12), the second cavity (128) is communicated with through hole.
7. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 1, it is characterized in that: between described housing (1) and sealing cap (2), be provided with ceramic chip (3), ceramic chip (3) is connected with wiring board (4), wiring board (4) is electrically connected with and draws pin (6), and wiring board (4) is fixed in the cavity of housing (1) by potting compound (5) sealing.
8. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 2, it is characterized in that: described Part II (12) is provided with the 3rd cavity (126), and the 3rd cavity (126) is arranged on the periphery of Part III (13).
9. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 8, it is characterized in that: described 3rd cavity (126) is evenly distributed in several along Part II (12), is provided with dowel (127) between adjacent two the 3rd cavitys (126).
10. pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal as claimed in claim 1, it is characterized in that: described sealing cap (2) comprises the U-shaped sealing cap body (21) be made up of titanium alloy, and the openend of sealing cap body (21) is connected with the kink (22) bent laterally;
The thickness of described sealing cap body (21) and kink (22) is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308843.8U CN204630626U (en) | 2015-05-14 | 2015-05-14 | Pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308843.8U CN204630626U (en) | 2015-05-14 | 2015-05-14 | Pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204630626U true CN204630626U (en) | 2015-09-09 |
Family
ID=54049643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520308843.8U Expired - Fee Related CN204630626U (en) | 2015-05-14 | 2015-05-14 | Pin type amplitude high sensitivity ultrasonic sensor is drawn in a kind of side seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204630626U (en) |
-
2015
- 2015-05-14 CN CN201520308843.8U patent/CN204630626U/en not_active Expired - Fee Related
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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: 20150909 Termination date: 20180514 |