CN203337312U - Surface pressure sensor having waterproof ventilation structure - Google Patents
Surface pressure sensor having waterproof ventilation structure Download PDFInfo
- Publication number
- CN203337312U CN203337312U CN2013203736179U CN201320373617U CN203337312U CN 203337312 U CN203337312 U CN 203337312U CN 2013203736179 U CN2013203736179 U CN 2013203736179U CN 201320373617 U CN201320373617 U CN 201320373617U CN 203337312 U CN203337312 U CN 203337312U
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- China
- Prior art keywords
- pressure
- adaptor
- shell
- circuit board
- waterproof ventilation
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- Expired - Lifetime
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Abstract
The utility model belongs to the technical field of pressure measurement, and specifically discloses a surface pressure sensor having a waterproof ventilation structure. The surface pressure sensor comprises a housing, an adapter piece and a pressure introducing nozzle. The surface pressure sensor further comprises an electric connector arranged on the top of the housing. The pressure introducing nozzle is fixed under the adapter piece, and a circuit board is fixed above the adapter piece. The circuit board is connected with sensing elements of the pressure introducing nozzle by wires. The electric connector is connected with the circuit board by wires. The side surface and the lower surface of the adapter piece are provided with sealing grooves, and sealing rings are arranged in the sealing grooves. Vents are arranged at the upper part of the side surface of the housing. According to the utility model, by utilizing the surface tension effect of water drops, the interior of the sensor is ensured to be communicated with the atmosphere, and the condensed water in the measuring environment is prevented from dropping into the interior of the sensor.
Description
Technical field
The utility model belongs to pressure measurement technology, is specifically related to a kind of gauge pressure transducer with ventilation water-proof function.
Background technology
In pressure measurement technology, the pressure of pressure transducer enclosure interior sensitive element one side of measuring for surface pressing will be consistent with the atmospheric pressure of external environment, thereby sensor will set up the aerating system of sensitive element and external environment, wherein the air hole on the sensor outside surface (groove) design is the most important.The design that traditional sensor surface air hole (groove) set-up mode has is on the electric connector of sensor, and some designs are on the outside surface of sensor circumference housing.But while in measurement environment, solidifying water being arranged, water droplet easily splashes into sensor internal along bleeder vent, cause the short circuit of sensor internal electrical connection or low-impedance mode occurs, affect the Measurement accuracy of sensor, even damage, thus design a kind of ventilation again the sensor air hole of the meter pressure of waterproof be very important.
Summary of the invention
The purpose of this utility model is to provide a kind of ventilatory function that has, and sealing property is better, the gauge pressure transducer with waterproof ventilation device that reliability is high.
The technical solution of the utility model is as follows:
A kind of gauge pressure transducer with waterproof ventilation device, comprise shell, establish adaptor and pressure-inducing nozzle in the enclosure, and the cylinder that described shell is lower ending opening, also comprise the electric connector that is located at the shell upper end; Described pressure-inducing nozzle fixedly is located at the below of adaptor, and described adaptor top is fixed with circuit board, and described circuit board is connected by wire with the sensitive element on being located at pressure-inducing nozzle; Described electric connector is connected with above-mentioned circuit board by wire, and side and the lower surface of described adaptor are equipped with seal groove, in described seal groove, are provided with O-ring seal; The upper end, side of described shell is provided with air hole.
In the gauge pressure transducer with waterproof ventilation device: described adaptor is tubular, and inside is processed with stair-stepping through hole, the shoulder hole inwall machining internal thread bottom at adaptor; Described pressure-inducing nozzle is three sections, and the preceding paragraph is that outer wall is processed with externally threaded upper cylinder, middle one section for six sides are installed, next section is processed with externally threaded lower cylinder for outer wall, whole pressure-inducing nozzle inside is processed with lower through-hole.
In the gauge pressure transducer with waterproof ventilation device: the upper surface machined grooves of described pressure-inducing nozzle is equipped with sensitive element in groove.
In the gauge pressure transducer with waterproof ventilation device: between the surface of contact of described electric connector and shell, be provided with sealing gasket.
The beneficial effects of the utility model are: designed the gauge pressure transducer with waterproof ventilation device, its core is that the air hole of minor diameter is set on the sensor outer housing surface, utilize the surface tension effects of water droplet, guaranteed that sensor internal can communicate with atmosphere, can prevent that again the solidifying water of measurement environment from splashing into sensor internal.Because the atmospheric pressure temporal evolution of sensor environment for use is very fast, the ventilatory effect of air hole can be caught up with the speed of change of atmospheric pressure, can guarantee the accuracy of sensor measurement, in order to prevent that air hole from stopping up in installation and use procedure, its quantity is made as to upper and lower two, has fully guaranteed the reliability of using.
The accompanying drawing explanation
Fig. 1 is the gauge pressure transducer structural representation with waterproof ventilation device of the present utility model;
In figure: 1. sealing gasket; 2. shell; 3. circuit board; 4. adaptor; 5. O-ring seal; 6. pressure-inducing nozzle; 7. sensitive element; 8. groove; 9. go up cylinder; 10. six sides are installed; 11. lower cylinder; 12. wire; 13. electric connector; 14. air hole; 15. seal groove.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, pressure-inducing nozzle 6 is fixedly connected with by screw thread with adaptor 4, and adaptor 4 is positioned at the top of pressure-inducing nozzle 6, and adaptor 4 is tubular, and inside is processed with stair-stepping through hole, the shoulder hole inwall machining internal thread bottom at adaptor 4; Described pressure-inducing nozzle 6 is three sections, the preceding paragraph is that outer wall is processed with externally threaded upper cylinder 9, middle one section is installation six sides 10, next section is processed with externally threaded lower cylinder 11 for outer wall, whole pressure-inducing nozzle 6 inside are processed with lower through-hole, the upper surface machined grooves 8 of pressure-inducing nozzle 6, be equipped with sensitive element 7 in groove 8.
The upper cylinder 9 of the upper end of pressure-inducing nozzle 6 is installed by screw thread with the shoulder hole bottom of adaptor 4, thereby makes pressure-inducing nozzle 6 fixing with adaptor 4.
Described adaptor 4 tops fixedly mount circuit board 3 by screw.Described circuit board 3 is connected with sensitive element 7 with wire 12 by 4.
The cylinder that described shell 2 is lower ending opening, the center, upper surface is processed with mounting hole, and electric connector 13 is installed, and described electric connector 13 lower ends are connected with circuit board 3 by three wires 12.The side of described shell 2 is processed with air hole 14, and shell 2 is sleeved on the outside of adaptor 4.
In order to guarantee the sealing of whole device, be provided with three place's seal approach, between the surface of contact of electric connector 13 and shell 2, sealing gasket 1 is installed; The lower surface of adaptor 4 is processed with a circle seal groove 15, places O-ring seal 5 in groove, at the surface of contact of pressure-inducing nozzle 6 and adaptor 4 by O-ring seal 5 sealings; Equally, be processed with a circle seal groove 15 in the side of adaptor 4, place O-ring seal 5 in groove, make the surface of contact of adaptor 4 and shell by O-ring seal 5 sealings.
Claims (4)
1. the gauge pressure transducer with waterproof ventilation device, adaptor (4) and pressure-inducing nozzle (6) of comprising shell, being located at shell in (2), the cylinder that described shell (2) is lower ending opening, also comprise the electric connector (13) that is located at shell (2) upper end; Described pressure-inducing nozzle (6) fixedly is located at the below of adaptor (4), and described adaptor (4) top is fixed with circuit board (3), and described circuit board (3) is connected by wire (12) with the sensitive element (7) on being located at pressure-inducing nozzle (6); Described electric connector (13) is connected with above-mentioned circuit board (3) by wire (12), and it is characterized in that: the side of described adaptor (4) and lower surface are equipped with seal groove (15), are provided with O-ring seal (5) in described seal groove (15); The upper end, side of described shell (2) is provided with air hole (14).
2. the gauge pressure transducer with waterproof ventilation device as claimed in claim 1 is characterized in that: described adaptor (4) is tubular, and inside is processed with stair-stepping through hole, the shoulder hole inwall machining internal thread bottom at adaptor (4); Described pressure-inducing nozzle (6) is three sections, the preceding paragraph is that outer wall is processed with externally threaded upper cylinder (9), middle one section for six sides (10) are installed, next section is processed with externally threaded lower cylinder (11) for outer wall, pressure-inducing nozzle (6) inside is processed with lower through-hole.
3. the gauge pressure transducer with waterproof ventilation device as claimed in claim 1 or 2, it is characterized in that: the upper surface machined grooves (8) of described pressure-inducing nozzle (6) is equipped with sensitive element (7) in groove (8).
4. the gauge pressure transducer with waterproof ventilation device as claimed in claim 1 or 2, is characterized in that: between the surface of contact of described electric connector (13) and shell (2), be provided with sealing gasket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203736179U CN203337312U (en) | 2013-06-27 | 2013-06-27 | Surface pressure sensor having waterproof ventilation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203736179U CN203337312U (en) | 2013-06-27 | 2013-06-27 | Surface pressure sensor having waterproof ventilation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203337312U true CN203337312U (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203736179U Expired - Lifetime CN203337312U (en) | 2013-06-27 | 2013-06-27 | Surface pressure sensor having waterproof ventilation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203337312U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215382A (en) * | 2014-09-05 | 2014-12-17 | 沈阳市传感技术研究所 | Membrane-separation type gauge pressure sensor of external balance chamber |
| CN104215383A (en) * | 2014-09-05 | 2014-12-17 | 沈阳市传感技术研究所 | Thin-film isolation gauge pressure sensor with built-in balance chamber |
| CN105547567A (en) * | 2015-12-09 | 2016-05-04 | 中国电子科技集团公司第四十八研究所 | Gauge age pressure sensor |
| CN105628293A (en) * | 2014-11-20 | 2016-06-01 | 长野计器株式会社 | Pressure sensor |
| CN105973525A (en) * | 2015-10-14 | 2016-09-28 | 北京强度环境研究所 | High-reliability piezoresistive pressure sensor |
| CN105973507A (en) * | 2015-10-14 | 2016-09-28 | 北京强度环境研究所 | Miniaturization piezoresistive pressure sensor |
| CN106248265A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of diffused-silicon pressure pick-up device |
-
2013
- 2013-06-27 CN CN2013203736179U patent/CN203337312U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215382A (en) * | 2014-09-05 | 2014-12-17 | 沈阳市传感技术研究所 | Membrane-separation type gauge pressure sensor of external balance chamber |
| CN104215383A (en) * | 2014-09-05 | 2014-12-17 | 沈阳市传感技术研究所 | Thin-film isolation gauge pressure sensor with built-in balance chamber |
| CN104215382B (en) * | 2014-09-05 | 2016-04-06 | 沈阳市传感技术研究所 | The film isolated form gauge pressure transducer of external balance chamber |
| CN105628293A (en) * | 2014-11-20 | 2016-06-01 | 长野计器株式会社 | Pressure sensor |
| CN105973525A (en) * | 2015-10-14 | 2016-09-28 | 北京强度环境研究所 | High-reliability piezoresistive pressure sensor |
| CN105973507A (en) * | 2015-10-14 | 2016-09-28 | 北京强度环境研究所 | Miniaturization piezoresistive pressure sensor |
| CN105547567A (en) * | 2015-12-09 | 2016-05-04 | 中国电子科技集团公司第四十八研究所 | Gauge age pressure sensor |
| CN106248265A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of diffused-silicon pressure pick-up device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |