CN202522367U - Intelligent pressure transmitter - Google Patents
Intelligent pressure transmitter Download PDFInfo
- Publication number
- CN202522367U CN202522367U CN2012201358176U CN201220135817U CN202522367U CN 202522367 U CN202522367 U CN 202522367U CN 2012201358176 U CN2012201358176 U CN 2012201358176U CN 201220135817 U CN201220135817 U CN 201220135817U CN 202522367 U CN202522367 U CN 202522367U
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- chamber
- circuit board
- housing
- pressure transmitter
- intelligent pressure
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Abstract
The utility model relates to the technical field of the industrial automatic instruments, and specially relates to an intelligent pressure transmitter. The intelligent pressure transmitter at least includes a pressure sensor, a signal circuit board and a housing, wherein the signal circuit board is arranged in the housing, a lower portion of the housing is connected with the pressure sensor, signal wires of the pressure sensor are in connection with the signal circuit board, and a chamber through which the signal wires pass is provided with a sealing ring. Compared with the prior art, in the intelligent pressure transmitter of the utility model, the sealing ring arranged in the chamber through which the signal wires pass is detachable and reusable, and provides good sealing effect.
Description
Technical field
The utility model relates to the industrial automation instrument technical field, particularly a kind of intelligent pressure transmitter.
Background technology
Pressure unit is widely used in departments such as chemical industry, oil, metallurgy, power station, is used to measure thermal technology's basic parameter such as pressure, liquid level, differential pressure of liquid, gas and steam.Transmitter is closed the measurement component that constitutes and reached the telecommunication circuit that is made up of the private communication chip by the detection of electrons amplification that microprocessor constitutes with signal processing circuit by the differential capacitor film to be formed, and under the support of computer program (software), accomplishes required measurement and communication task.Acted on the isolation diaphragm that the differential capacitor film closes parts by measuring pressure, be delivered on the central task diaphragm that the differential capacitor film closes, make the central task diaphragm produce displacement, the electric capacity on both sides is changed through sealing liquid (silicone oil).The variation of its electric capacity converts electric signal to by demodulator circuit, and this electric signal is handled back output and closed the linear standard 4～20mA simulating signal of the added pressure reduction in both sides and the digital signal of stack with the differential capacitor film through the detection of amplifying circuit.
In utility model patent 200420119032.5; A kind of miniaturized intelligent pressure reduction/pressure unit is disclosed; This pressure unit comprises sensor module and the electronic cartridge that is arranged on sensor module top; In sensor module, the cavity of the signal line passes of sensor adopts the mode of infusion epoxy resin to seal.Though this kind sealing means good sealing effect exists seal on-dismountable, and the defective that can't reuse.
The utility model content
The utility model purpose is to provide a kind of intelligent pressure transmitter; Cavity with the signal line passes of the sensor that solves pressure unit of the prior art adopts the mode of infusion epoxy resin to seal; Cause seal on-dismountable, and the technical matters that can't reuse.
The utility model purpose realizes through following technical scheme:
A kind of intelligent pressure transmitter; At least comprise pressure transducer, signal circuit board and housing; Said signal circuit board is arranged in the said housing; Said lower housing portion is connected with said pressure transducer, and the signal wire of said pressure transducer is connected with said signal circuit board, and the chamber of said signal line passes is provided with O-ring seal.
Further, said O-ring seal comprises rubber ring, and said rubber ring is provided with and can holds the through hole that said signal wire passes.
Further; Also be provided with first chamber and second chamber in the said housing, be provided with connection terminal in said first chamber, said connection terminal is connected with first connector of said signal circuit board; The pin of said connection terminal leads to second chamber; Said pin is provided with second connector, is provided with printed circuit board in said second chamber, and said second connector is connected with said printed circuit board.
Further, be provided with ceramic feedthrough capacitor between said connection terminal and said second connector.
Further, also be provided with display device in said second chamber, said printed circuit board is connected with said display device.
Further, said lower housing portion is threaded with said pressure transducer, and the junction is provided with first O-ring seal.
Further, also comprise the flange assembly, said pressure transducer is connected with said flange assembly, and the junction is provided with second O-ring seal.
Further; Also comprise first end cap and second end cap that are arranged on the said housing; Said first end cap and said housing are connected to form said first chamber; Said second end cap and said housing are connected to form said second chamber, and said second end cap is provided with the mirror cover glass, and said mirror cover glass is corresponding with said display device.
Compared with prior art, the intelligent pressure transmitter of the utility model is detachable at the O-ring seal of the chamber setting of signal line passes, can reuse good sealing effect.
Description of drawings
Fig. 1 is the structural representation of the intelligent pressure transmitter of the utility model;
Fig. 2 is the cut-open view of the pressure transducer of the utility model.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
See also Fig. 1,2, the intelligent pressure transmitter of the utility model comprises pressure transducer 2, signal circuit board 3 and housing 1 at least, and signal circuit board 3 is arranged in the housing 1, and housing 1 bottom is threaded with pressure transducer 2, and the junction is provided with first O-ring seal.The signal wire 21 of pressure transducer 2 is connected with signal circuit board 3, and the chamber of signal wire 21 processes is provided with O-ring seal 5.In this example, O-ring seal 5 is a rubber ring, and rubber ring is provided with and can holds the through hole that signal wire passes, and signal wire 21 cooperates with through hole closely, can guarantee good sealing effectiveness, and O-ring seal is detachable, can reuse.
Further, also be provided with in the housing 1 in first chamber 11 and second chamber, 12, the first chambers 11 and be provided with connection terminal 13; Connection terminal 13 is connected with first connector of signal circuit board 2; The pin of connection terminal 13 leads to second chamber 12, and pin is provided with second connector, is provided with ceramic feedthrough capacitor 14 between the connection terminal 13 and second connector; Be provided with printed circuit board in second chamber 12, second connector is connected with printed circuit board.Also be provided with display device in second chamber 12, printed circuit board is connected with display device.
Further, the intelligent pressure transmitter of the utility model also comprises flange assembly 4, and pressure transducer 2 is connected with flange assembly 4, and the junction is provided with second O-ring seal.Flange assembly 4 is provided with the exhaust tapping valve, is used for measured medium residual in the discharge pressure sensor (like liquid, gas or steam etc.).
Further; The intelligent pressure transmitter of the utility model also comprises first end cap 16 and second end cap 17 that is arranged on the housing 1; First end cap 16 is connected to form first chamber 11 with housing 1; Second end cap 17 is connected to form second chamber, 12, the second end caps 17 with housing 1 and is provided with mirror cover glass 15, and mirror cover glass 15 is corresponding with display device.
During work; Measured medium (like liquid, gas or steam etc.) gets into from the screw of flange assembly 4; Through pressure transducer 2; Pressure transducer 2 converts pressure signal to electric signal, and electric signal amplifies with output amplifier through difference and amplifies, and exports signal after the V/A electric current and voltage converts to 4～20mA normalized current of the linear corresponding relation of pressure of measured medium (liquid, gas or steam etc.).
More than the disclosed several specific embodiments that are merely the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.
Claims (8)
1. intelligent pressure transmitter; At least comprise pressure transducer, signal circuit board and housing; It is characterized in that said signal circuit board is arranged in the said housing, said lower housing portion is connected with said pressure transducer; The signal wire of said pressure transducer is connected with said signal circuit board, and the chamber of said signal line passes is provided with O-ring seal.
2. a kind of intelligent pressure transmitter as claimed in claim 1 is characterized in that said O-ring seal comprises rubber ring, and said rubber ring is provided with and can holds the through hole that said signal wire passes.
3. a kind of intelligent pressure transmitter as claimed in claim 1 is characterized in that, also is provided with first chamber and second chamber in the said housing; Be provided with connection terminal in said first chamber; Said connection terminal is connected with first connector of said signal circuit board, and the pin of said connection terminal leads to second chamber, and said pin is provided with second connector; Be provided with printed circuit board in said second chamber, said second connector is connected with said printed circuit board.
4. a kind of intelligent pressure transmitter as claimed in claim 3 is characterized in that, is provided with ceramic feedthrough capacitor between said connection terminal and said second connector.
5. a kind of intelligent pressure transmitter as claimed in claim 3 is characterized in that, also is provided with display device in said second chamber, and said printed circuit board is connected with said display device.
6. a kind of intelligent pressure transmitter as claimed in claim 1 is characterized in that, said lower housing portion is threaded with said pressure transducer, and the junction is provided with first O-ring seal.
7. a kind of intelligent pressure transmitter as claimed in claim 1 is characterized in that, also comprises the flange assembly, and said pressure transducer is connected with said flange assembly, and the junction is provided with second O-ring seal.
8. a kind of intelligent pressure transmitter as claimed in claim 5; It is characterized in that; Also comprise first end cap and second end cap that are arranged on the said housing, said first end cap and said housing are connected to form said first chamber, and said second end cap and said housing are connected to form said second chamber; Said second end cap is provided with the mirror cover glass, and said mirror cover glass is corresponding with said display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201358176U CN202522367U (en) | 2012-04-01 | 2012-04-01 | Intelligent pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201358176U CN202522367U (en) | 2012-04-01 | 2012-04-01 | Intelligent pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522367U true CN202522367U (en) | 2012-11-07 |
Family
ID=47105310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201358176U Expired - Fee Related CN202522367U (en) | 2012-04-01 | 2012-04-01 | Intelligent pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522367U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197631A1 (en) * | 2015-06-08 | 2016-12-15 | 伊玛精密电子（苏州）有限公司 | Acid-base resistant all-metal flow temperature sensor |
| CN110146216A (en) * | 2019-05-27 | 2019-08-20 | 广州敏华仪器仪表有限公司 | Pressure transmitter |
| RU220891U1 (en) * | 2023-04-19 | 2023-10-09 | Общество С Ограниченной Ответственностью "Микротензор" (Ооо "Микротензор") | High Temperature Strain Resistive Smart Pressure Transmitter |
-
2012
- 2012-04-01 CN CN2012201358176U patent/CN202522367U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197631A1 (en) * | 2015-06-08 | 2016-12-15 | 伊玛精密电子（苏州）有限公司 | Acid-base resistant all-metal flow temperature sensor |
| CN110146216A (en) * | 2019-05-27 | 2019-08-20 | 广州敏华仪器仪表有限公司 | Pressure transmitter |
| CN110146216B (en) * | 2019-05-27 | 2021-03-02 | 广州敏华仪器仪表有限公司 | Pressure transmitter |
| RU220891U1 (en) * | 2023-04-19 | 2023-10-09 | Общество С Ограниченной Ответственностью "Микротензор" (Ооо "Микротензор") | High Temperature Strain Resistive Smart Pressure Transmitter |
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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 |
Granted publication date: 20121107 Termination date: 20180401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |