Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pressure transmitter based on ceramic pressure sensor

A technology of pressure sensor and transmitter, which is applied in the direction of measuring fluid pressure, instruments, measuring devices, etc. It can solve the problems of high cost, no consideration of O-ring limit, difficult processing, etc., and reduce production cost and management cost , Overcoming the high production cost and improving the effect of negative pressure resistance

Pending Publication Date: 2021-01-05
南京爱尔传感科技有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN203837869U, title of invention: a connection structure of a pressure transmitter, wherein the ceramic piezoresistive sensor and the base are sealed by an o-ring, and the limit of the o-ring is not considered
If the requirements are high, a circumferential limit groove is processed at the position of the sealing ring on the core body seat. Because this position is difficult to process, the cost is extremely high, and machining a limit groove is not a good solution.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pressure transmitter based on ceramic pressure sensor
  • Pressure transmitter based on ceramic pressure sensor
  • Pressure transmitter based on ceramic pressure sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] see figure 1 with figure 2 As shown, a pressure transmitter based on a ceramic pressure sensor includes a core body 1, one end of the core body 1 is provided with a medium inlet 10, and an installation cavity 11 communicated with the medium inlet 10, and the ceramic pressure sensor 2 is installed In the installation cavity 11, it is characterized in that a sealing ring 3 and a support member 4 to prevent the sealing ring from shrinking into the medium inlet are provided between the end surface of the ceramic pressure sensor 2 and the wall surface communicating with the installation cavity 11 and the medium inlet.

[0041] The present invention provides auxiliary support for the seal ring by adding a support member, avoiding the problem of seal failure caused by the seal ring being sucked inward, and the structure of the support member is simple, and the manufacturing cost is low. The approach of the limiting groove has obvious cost advantages, so that the present inve...

Embodiment 2

[0046] see figure 1 with figure 2 As shown, a pressure transmitter based on a ceramic pressure sensor includes a core body 1, one end of the core body 1 is provided with a medium inlet 10, and an installation cavity 11 communicated with the medium inlet 10, and the ceramic pressure sensor 2 is installed In the installation cavity 11, it is characterized in that a sealing ring 3 and a support member 4 to prevent the sealing ring from shrinking into the medium inlet are provided between the end surface of the ceramic pressure sensor 2 and the wall surface communicating with the installation cavity 11 and the medium inlet.

[0047] The support member 4 is an annular ring body 40, the hole in the middle of the ring body communicates with the medium inlet and the ceramic sensor hole, so that the medium enters the ceramic sensor, and the outer side of the ring body supports the inner ring of the sealing ring to prevent it from Problems with displacement under pressure.

[0048] F...

Embodiment 3

[0051] see figure 1 with figure 2As shown, a pressure transmitter based on a ceramic pressure sensor includes a core body 1, one end of the core body 1 is provided with a medium inlet 10, and an installation cavity 11 communicated with the medium inlet 10, and the ceramic pressure sensor 2 is installed In the installation cavity 11, it is characterized in that a sealing ring 3 and a support member 4 to prevent the sealing ring from shrinking into the medium inlet are provided between the end surface of the ceramic pressure sensor 2 and the wall surface communicating with the installation cavity 11 and the medium inlet.

[0052] The support member 4 is an annular ring body 40, the hole in the middle of the ring body communicates with the medium inlet and the ceramic sensor hole, so that the medium enters the ceramic sensor, and the outer side of the ring body supports the inner ring of the sealing ring to prevent it from Problems with displacement under pressure.

[0053] Th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of pressure transmitters, in particular to a pressure transmitter based on a ceramic pressure sensor. The pressure transmitter based on the ceramic pressure sensor comprises a core body seat, one end of the core body seat is provided with a medium inlet and an installation cavity communicated with the medium inlet, and the ceramic pressure sensor is installed inthe installation cavity. A sealing ring and a supporting part for preventing the sealing ring from shrinking into the medium inlet are arranged between the end surface of the ceramic pressure sensor and the wall surface, communicated with the medium inlet, of the installation cavity; the supporting assembly is arranged between the end surface of the ceramic pressure sensor and the wall surface ofthe installation cavity and supports the sealing ring from inside to outside, so that the problem of sealing failure caused by inward suction of the sealing ring is avoided, the negative pressure resistance of the pressure transmitter is improved, the service life of the ceramic pressure sensor is prolonged, and the problem of high production cost caused by processing the limiting groove in the prior art is also solved.

Description

technical field [0001] The invention relates to the field of pressure transmitters, in particular to a pressure transmitter based on a ceramic pressure sensor. Background technique [0002] A pressure transmitter is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. It is one of the most common sensors used in industrial sites. It is widely used in various industrial self-control environments, involving water conservancy and hydropower, railway transportation , intelligent building, production automation, aerospace, military industry, petrochemical, oil well, electric power, ship, machine tool, pipeline and many other industries. [0003] Generally, the ceramic sensor sealing method, the manufacturer will place a sealing ring between the ceramic sensor and the core seat, and apply a pre-tightening force to the sealing ring by tightening the buckle ring to make the seal effective. [0004] In general, pressure s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/00
CPCG01L19/00G01L19/0007
Inventor 孙芳利许瑞黄宗德
Owner 南京爱尔传感科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com