CN212871585U - Novel pressure sensor - Google Patents
Novel pressure sensor Download PDFInfo
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- CN212871585U CN212871585U CN202021174943.3U CN202021174943U CN212871585U CN 212871585 U CN212871585 U CN 212871585U CN 202021174943 U CN202021174943 U CN 202021174943U CN 212871585 U CN212871585 U CN 212871585U
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- mounting hole
- diaphragm
- pressure sensor
- conversion circuit
- signal conversion
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Abstract
The utility model discloses a novel pressure sensor relates to pressure sensor technical field, has solved the technical problem that current sensor can not be applied to the connecting tube of toper connector, the utility model discloses a casing, the casing includes protective housing, outer hexagon and connecting nipple from top to bottom in proper order, the connecting nipple excircle is provided with the external screw thread, the lower terminal surface of connecting nipple is provided with the internal thread, the external screw thread is NPT 2' external screw thread, the internal thread is the taper pipe screw thread, still is provided with silicon diaphragm and signal conversion circuit in the casing, and silicon diaphragm passes through the wire with signal conversion circuit and is connected; the utility model has the advantages of simple structure can be applied to the pressure measurement of the pipeline of foreign standard and go up.
Description
Technical Field
The utility model relates to a pressure sensor technical field, more specifically relate to a novel pressure sensor.
Background
A Pressure Transducer is a device or apparatus that senses a Pressure signal and converts the Pressure signal into a usable output electrical signal according to a certain rule.
A pressure sensor is usually composed of a pressure sensitive element and a signal processing unit. Pressure sensors can be classified into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors according to different types of test pressures.
The pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, relates to water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and other industries, and simply introduces the principles and the applications of some common sensors. In addition, a medical pressure sensor is arranged.
The connecting parts of the existing pressure sensors are all provided with external threads, so that the existing pressure sensors cannot be connected in special occasions, such as pipeline connecting occasions of petroleum pipelines and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the technical problem that the existing sensor can not be applied to the connecting pipeline of the cone-shaped connector, the utility model provides a novel pressure sensor.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides a novel pressure sensor, includes the casing, the casing includes protective housing, outer hexagonal and connector lug from last to down in proper order, the connector lug excircle is provided with the external screw thread, the lower terminal surface of connector lug is provided with the internal thread, the external screw thread is NPT 2' ″ external screw thread, the internal thread is the circular cone pipe screw thread, still is provided with silicon diaphragm and signal conversion circuit in the casing, and silicon diaphragm passes through the wire with signal conversion circuit and is connected.
Further, the protective shell, the outer hexagon and the connecting nozzle are of an integrated structure.
Further, the signal conversion circuit includes a signal amplification circuit and an analog-to-digital conversion circuit.
Further, the up end of protective housing is provided with the circuit board mounting hole, the hole bottom of circuit board mounting hole is provided with the tamponade mounting hole, the hole bottom of tamponade mounting hole is provided with the diaphragm mounting hole, the hole bottom of diaphragm mounting hole is provided with the high-pressure chamber, the high-pressure chamber is put through with the internal thread, the silicon diaphragm inlays in the diaphragm mounting hole, the tamponade mounting hole is the screw hole, the tamponade mounting hole is provided with and carries out screw-thread fit's tamponade with the tamponade mounting hole, signal conversion circuit is fixed to be set up in the circuit board mounting hole, the diameter of circuit board mounting hole is greater than the diameter of tamponade mounting hole, the diameter of tamponade mounting hole is greater than the diameter of diaphragm mounting hole, the high-pressure chamber is the circular.
Furthermore, a sealing ring is arranged at the lower end of the silicon diaphragm, the upper end of the sealing ring is embedded into the silicon diaphragm, and the lower end of the sealing ring is in contact with the bottom of the diaphragm mounting hole.
The utility model has the advantages as follows:
the utility model discloses change the external screw thread of tradition connection mouth into NPT 2'. external screw thread, can be applied to the pressure measurement of the pipeline of foreign standard with this patent product, be provided with the taper pipe thread with the hole of connecting the mouth simultaneously, when needs are connected this product on outer taper pipe thread, the lug connection can, need not carry out specific design, realized the application of many occasions, compare this patent product range of application with traditional pressure sensor wider, low in manufacturing cost simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of the housing;
FIG. 4 is a cross-sectional view of the press plug;
fig. 5 is a top view of the press plug.
Reference numerals: 1-connecting nozzle, 2-external hexagon, 3-protective shell, 4-signal conversion circuit, 5-external thread, 6-internal thread, 7-press plug, 8-silicon diaphragm, 9-high pressure cavity, 10-press plug mounting hole, 11-diaphragm mounting hole and 12-rotating hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 5, the present embodiment provides a novel pressure sensor, which includes a housing, the housing includes, in order from top to bottom, a protective housing 3, an external hexagon 2, and a connection nozzle 1, an external thread 5 is provided on an outer circle of the connection nozzle 1, an internal thread 6 is provided on a lower end surface of the connection nozzle 1, the external thread 5 is an NPT 2' ″ external thread, the internal thread 6 is a conical pipe thread, a silicon diaphragm 8 and a signal conversion circuit 4 are further provided in the housing, and the silicon diaphragm 8 is connected to the signal conversion circuit 4 by a wire.
Example 2
As shown in fig. 1 to 5, the present embodiment provides a novel pressure sensor, which includes a housing, the housing includes, in order from top to bottom, a protective housing 3, an external hexagon 2, and a connection nozzle 1, an external thread 5 is provided on an outer circle of the connection nozzle 1, an internal thread 6 is provided on a lower end surface of the connection nozzle 1, the external thread 5 is an NPT 2' ″ external thread, the internal thread 6 is a conical pipe thread, a silicon diaphragm 8 and a signal conversion circuit 4 are further provided in the housing, and the silicon diaphragm 8 is connected to the signal conversion circuit 4 by a wire. The protective shell 3, the outer hexagon 2 and the connecting nozzle 1 are of an integral structure.
Example 3
As shown in fig. 1 to 5, the present embodiment provides a novel pressure sensor, which includes a housing, the housing includes, in order from top to bottom, a protective housing 3, an external hexagon 2, and a connection nozzle 1, an external thread 5 is provided on an outer circle of the connection nozzle 1, an internal thread 6 is provided on a lower end surface of the connection nozzle 1, the external thread 5 is an NPT 2' ″ external thread, the internal thread 6 is a conical pipe thread, a silicon diaphragm 8 and a signal conversion circuit 4 are further provided in the housing, and the silicon diaphragm 8 is connected to the signal conversion circuit 4 by a wire. The protective shell 3, the outer hexagon 2 and the connecting nozzle 1 are of an integral structure. The signal conversion circuit 4 includes a signal amplification circuit and an analog-to-digital conversion circuit.
The up end of protective housing 3 is provided with the circuit board mounting hole, the hole bottom of circuit board mounting hole is provided with tamponade mounting hole 10, the hole bottom of tamponade mounting hole 10 is provided with diaphragm mounting hole 11, the hole bottom of diaphragm mounting hole 11 is provided with high-pressure chamber 9, high-pressure chamber 9 and internal thread 6 switch-on, silicon diaphragm 8 inlays in diaphragm mounting hole 11, tamponade mounting hole 10 is the screw hole, tamponade mounting hole 10 is provided with carries out screw-thread fit's tamponade 7 with tamponade mounting hole 10, signal conversion circuit 4 is fixed to be set up in the circuit board mounting hole, the diameter of circuit board mounting hole is greater than the diameter of tamponade mounting hole 10, the diameter of tamponade mounting hole 10 is greater than the diameter of diaphragm mounting hole 11, high-pressure chamber 9 is the circular port, the diameter of diaphragm mounting hole 11 is greater. The lower end of the silicon diaphragm 8 is provided with a sealing ring, the upper end of the sealing ring is embedded into the silicon diaphragm 8, and the lower end of the sealing ring is contacted with the bottom of the diaphragm mounting hole 11.
Claims (5)
1. The utility model provides a novel pressure sensor, includes the casing, the casing includes protective housing (3), outer hexagonal (2) and connector nozzle (1) from last to down in proper order, its characterized in that, connector nozzle (1) excircle is provided with external screw thread (5), the lower terminal surface of connector nozzle (1) is provided with internal thread (6), external screw thread (5) are NPT 2' ″ external screw thread, internal thread (6) are the circular cone pipe thread, still are provided with silicon diaphragm (8) and signal conversion circuit (4) in the casing, and silicon diaphragm (8) pass through the wire with signal conversion circuit (4) and are connected.
2. A new pressure sensor, according to claim 1, characterized by the fact that the protective shell (3), the outer hexagon (2) and the connection mouth (1) are of a unitary structure.
3. The new pressure sensor according to claim 2, characterized in that the signal conversion circuit (4) comprises a signal amplification circuit and an analog-to-digital conversion circuit.
4. The novel pressure sensor according to claim 2, wherein the upper end face of the protective shell (3) is provided with a circuit board mounting hole, the bottom of the circuit board mounting hole is provided with a press plug mounting hole (10), the bottom of the press plug mounting hole (10) is provided with a diaphragm mounting hole (11), the bottom of the diaphragm mounting hole (11) is provided with a high pressure cavity (9), the high pressure cavity (9) is communicated with the internal thread (6), the silicon diaphragm (8) is embedded in the diaphragm mounting hole (11), the press plug mounting hole (10) is a threaded hole, the press plug mounting hole (10) is provided with a press plug (7) in threaded fit with the press plug mounting hole (10), the signal conversion circuit (4) is fixedly arranged in the circuit board mounting hole, the diameter of the circuit board mounting hole is larger than that of the press plug mounting hole (10), and the diameter of the press plug mounting hole (10) is larger than that of the diaphragm mounting hole (11), the high-pressure cavity (9) is a circular hole, and the diameter of the diaphragm mounting hole (11) is larger than that of the high-pressure cavity (9).
5. The novel pressure sensor according to claim 4, characterized in that the lower end of the silicon diaphragm (8) is provided with a sealing ring, the upper end of the sealing ring is embedded in the silicon diaphragm (8), and the lower end of the sealing ring is in contact with the bottom of the diaphragm mounting hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021174943.3U CN212871585U (en) | 2020-06-23 | 2020-06-23 | Novel pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021174943.3U CN212871585U (en) | 2020-06-23 | 2020-06-23 | Novel pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212871585U true CN212871585U (en) | 2021-04-02 |
Family
ID=75211643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021174943.3U Active CN212871585U (en) | 2020-06-23 | 2020-06-23 | Novel pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212871585U (en) |
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2020
- 2020-06-23 CN CN202021174943.3U patent/CN212871585U/en active Active
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