CN203011603U - Pressure transmitter - Google Patents

Pressure transmitter Download PDF

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Publication number
CN203011603U
CN203011603U CN 201220686275 CN201220686275U CN203011603U CN 203011603 U CN203011603 U CN 203011603U CN 201220686275 CN201220686275 CN 201220686275 CN 201220686275 U CN201220686275 U CN 201220686275U CN 203011603 U CN203011603 U CN 203011603U
Authority
CN
China
Prior art keywords
cable
base
circuit board
pressure
sensor core
Prior art date
Application number
CN 201220686275
Other languages
Chinese (zh)
Inventor
刘石勇
孙强
周维
彭平
Original Assignee
长沙南车电气设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 长沙南车电气设备有限公司 filed Critical 长沙南车电气设备有限公司
Priority to CN 201220686275 priority Critical patent/CN203011603U/en
Application granted granted Critical
Publication of CN203011603U publication Critical patent/CN203011603U/en

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Abstract

The utility model discloses a pressure transmitter characterized in that the pressure transmitter comprises a pedestal (1), a sensor core (3), a pressing ring (4), a circuit board (6), an outer shell pipe (9), a cable screwing device (10), and a cable line (11). One end of the outer shell pipe (9) is screwed on the pedestal (1) through screw threads, while the other end of the outer shell pipe (9) is equipped with the cable screwing device (10). The sensor core (3) is placed in a depressed part on the inner side of the pedestal (1). The pressing ring (4) is mounted on the pedestal (1) and presses the sensor core (3). The pressing ring (4) and the pedestal (1) are fitted together through screw threads. The circuit board (6) is mounted on the pressing ring (4) and located inside the outer shell pipe (9). One end of the cable line (11) is connected with the circuit board (6), while the other end of the cable line (11) is led out from a through hole in the center of the cable screwing device (10). The pressure transmitter is good in sealing property, simple in structure, and easy to implement.

Description

A kind of pressure unit

Technical field

The utility model relates to a kind of pressure unit.

Background technology

Diesel locomotive energy consumption monitoring statistical analysis system need to adopt pressure unit, is used for detecting diesel oil pressure in the diesel locomotive fuel tank, in conjunction with the corresponding tank model of locomotive, calculates fuel tank fuel quantity.

During the work of the diesel engine of diesel locomotive, fail the higher diesel oil of perfect combustion and temperature to be back to fuel tank, make that in fuel tank, diesel fuel temperature maintains a higher temperature; In addition, China is vast in territory, and each Climate is totally different, and environment temperature also is not quite similar, therefore need pressure unit can keep good sealing in different temperature ranges.Existing pressure unit, sealing property etc. can't meet the demands.

Therefore, be necessary to design a kind of novel pressure unit.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of pressure unit, and this pressure unit good airproof performance is simple in structure, easy to implement.

The technical solution of utility model is as follows:

A kind of pressure unit comprises base (1), sensor core (3), pressure ring (4), circuit board, display pipe (9), cable screwing device (10) and cable (11);

One end spinning of display pipe (9) is on base (1); The other end of display pipe (9) is equipped with described cable screwing device (10);

Sensor core (3) is placed in the inboard depressed part of base (1), and pressure ring (4) is arranged on base (1) and goes up and push down this sensor core (3), and pressure ring (4) adopts threaded engagement with base (1); Circuit board is arranged on pressure ring (4); Described circuit board is positioned at display pipe (9); One end connecting circuit board of cable (11), the other end of cable (11) is drawn from the through hole at cable screwing device (10) center.

Described cable (11) is the air guide cable.

Circuit board comprises interface card (6) and is arranged on main circuit board (8) on interface card (6), and interface card (6) is fixed on pressure ring (4) by screw (7).

Screw (7) passes spinning on pressure ring (4) from nylon insulated column (6).

Display pipe (9) is threaded connection with cable screwing device (10).

Have a through hole along the thickness direction of base that is used for that oil passes through on base (1), this through hole makes the detection faces of sensor core (3) and the exterior of base (1).

Be provided with O RunddichtringO (2) on base (1).

Beneficial effect:

Pressure unit of the present utility model has following characteristics:

1) sensor construction spare all adopts stainless steel.Can bear the corrosion of oil, water.

2) O-ring seals of customization is housed on base 1, the sealing grade is high.

3) O shape circle adopts composite silicone rubber, the corrosion that can bear oil, water.

4) compact overall structure, resistance to impact is good.

5) shell is designed with the spanner position, and is for convenience detach.

6) the nylon insulated column is housed between circuit board and core component, has not only insulated but also well vibration damping is locking.

7) pressure ring screws length with screw thread and compresses core body, makes its relative with base static in the base cavity.

8) this Product Assembly is simple, and technological operation is good.The finished product screw thread is installed, and is simple and reliable.

In sum, pressure unit of the present utility model, volume is little, good airproof performance, easily install, the serviceability temperature scope is wide, debugging is convenient, can under abominable working environment, measure accurately, reliably the locomotive fuel tank oil pressure.Degree of protection reaches IP68, can be used as rail vehicles low-pressure type pressure unit, also can be used for the occasion that automobile, steamer, engineering machinery vehicle etc. need detected pressures.

Description of drawings

Fig. 1 is the sectional view of pressure unit of the present utility model;

Fig. 2 is the three-view diagram of pressure unit of the present utility model; (figure a-c is respectively upward view, front view and left view)

Wherein: 1-base, 2-○-shaped seal ring, 3-sensor core, 4-pressure ring, 5-nylon insulated column, 6-interface card, 7-screw, 8-main circuit board, 9-display pipe, 10-cable screwing device, 11-air guide cable.

Embodiment

Below with reference to the drawings and specific embodiments, the utility model is described in further details:

Embodiment 1:

As shown in Fig. 1-2, a kind of pressure unit is characterized in that, comprises base 1, sensor core (3), pressure ring 4, circuit board, display pipe 9, cable screwing device 10 and cable 11;

One end spinning of display pipe 9 (by threaded engagement spinning on base) on base 1; The other end of display pipe 9 is equipped with described cable screwing device 10;

Sensor core 3 is arranged in the inboard depressed part of base 1, and pressure ring 4 is arranged on base 1 and pushes down this sensor core 3 (being specially the stainless steel boss of pushing down sidepiece), and pressure ring and base adopt threaded engagement; Circuit board is arranged on pressure ring 4; Described circuit board is positioned at display pipe 9; One end connecting circuit board of cable 11, the other end of cable 11 is drawn from the through hole at cable screwing device 10 centers.

Described cable 11 is the air guide cable.

Circuit board comprises interface card 6 and the main circuit board 8 that is arranged on interface card 6, and interface card 6 is fixed on pressure ring 4 by screw 7.

Screw 7 passes spinning on pressure ring 4 from nylon insulated column 6.

Display pipe 9 is threaded connection with cable screwing device 10.

Be provided with O RunddichtringO 2 on base 1.

Have a through hole along the thickness direction of base that is used for that oil passes through on base 1, this through hole makes the detection faces of sensor core 3 and the exterior of base 1.Pressure passes through the transfer function of oil on sensor core.

The Product Assembly method is as follows: ○-shaped seal ring is enclosed within base 1 bottom, and sensor core 3 levels are inserted in base 1, and pressure ring 4 screws in bases 1, consists of the pressure sensor core assembling, should not touch, damage the sensor core detection faces in assembling process; Interface card 6 and main circuit board 8 by on 2 screws (band plain cushion, bullet pad), 7 pressure rings 4 that are fixed in the pressure sensor core assembling, adopt the nylon insulated column to separate by welding assembly unit interface card 6 between interface card 6 and pressure ring 4; Cable 11 passes cable screwing device 10, is welded on after wire stripping on main circuit board 8; Cable screwing device 10 is screwed on display pipe 9 by screw thread.

The principle of product: pressure-acting is on the detection faces of sensor core, and sensor core is converted to pressure signal the voltage signal circuit plate and the cable output signal is arranged.

Claims (7)

1. a pressure unit, is characterized in that, comprises base (1), sensor core (3), pressure ring (4), circuit board, display pipe (9), cable screwing device (10) and cable (11);
One end spinning of display pipe (9) is on base (1); The other end of display pipe (9) is equipped with described cable screwing device (10);
Sensor core (3) is placed in the inboard depressed part of base (1), and pressure ring (4) is arranged on base (1) and goes up and push down this sensor core (3), and pressure ring (4) adopts threaded engagement with base (1); Circuit board is arranged on pressure ring (4); Described circuit board is positioned at display pipe (9); One end connecting circuit board of cable (11), the other end of cable (11) is drawn from the through hole at cable screwing device (10) center.
2. pressure unit according to claim 1, is characterized in that, described cable (11) is the air guide cable.
3. pressure unit according to claim 1, is characterized in that, circuit board comprises interface card (6) and be arranged on main circuit board (8) on interface card (6), and interface card (6) is fixed on pressure ring (4) by screw (7).
4. pressure unit according to claim 3, is characterized in that, screw (7) passes spinning on pressure ring (4) from nylon insulated column (6).
5. pressure unit according to claim 1, is characterized in that, display pipe (9) is threaded connection with cable screwing device (10).
6. pressure unit according to claim 1, is characterized in that, has a through hole along the thickness direction of base that is used for that oil passes through on base (1), and this through hole makes the detection faces of sensor core (3) and the exterior of base (1).
7. according to claim 1-6 described pressure units of any one, is characterized in that, is provided with O RunddichtringO (2) on base (1).
CN 201220686275 2012-12-13 2012-12-13 Pressure transmitter CN203011603U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220686275 CN203011603U (en) 2012-12-13 2012-12-13 Pressure transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220686275 CN203011603U (en) 2012-12-13 2012-12-13 Pressure transmitter

Publications (1)

Publication Number Publication Date
CN203011603U true CN203011603U (en) 2013-06-19

Family

ID=48603186

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220686275 CN203011603U (en) 2012-12-13 2012-12-13 Pressure transmitter

Country Status (1)

Country Link
CN (1) CN203011603U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103487097A (en) * 2013-09-17 2014-01-01 广州市番禺奥迪威电子有限公司 High-temperature-resisting ultrasonic flow sensor
CN104280052A (en) * 2014-09-18 2015-01-14 昆明理工大学 Circuit structure of compact type two-wire-system thermocouple transmitter and installing method thereof
CN105258841A (en) * 2015-11-12 2016-01-20 刘辉 Pressure sampling device and pressure sampling system comprising the device
WO2017096656A1 (en) * 2015-12-07 2017-06-15 海卓赛思(苏州)传感技术有限公司 Transmitter for online monitoring of moisture, hydrogen content, and temperature of transformer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103487097A (en) * 2013-09-17 2014-01-01 广州市番禺奥迪威电子有限公司 High-temperature-resisting ultrasonic flow sensor
CN103487097B (en) * 2013-09-17 2017-04-19 广东奥迪威传感科技股份有限公司 High-temperature-resisting ultrasonic flow sensor
CN104280052A (en) * 2014-09-18 2015-01-14 昆明理工大学 Circuit structure of compact type two-wire-system thermocouple transmitter and installing method thereof
CN104280052B (en) * 2014-09-18 2017-06-13 昆明理工大学 A kind of circuit structure and its installation method of pocket two-wire system Thermocouple Temperature Transmitter
CN105258841A (en) * 2015-11-12 2016-01-20 刘辉 Pressure sampling device and pressure sampling system comprising the device
WO2017096656A1 (en) * 2015-12-07 2017-06-15 海卓赛思(苏州)传感技术有限公司 Transmitter for online monitoring of moisture, hydrogen content, and temperature of transformer

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