CN204202808U - With the ceramic on metal pressure transducer of freeze plug - Google Patents
With the ceramic on metal pressure transducer of freeze plug Download PDFInfo
- Publication number
- CN204202808U CN204202808U CN201420744401.3U CN201420744401U CN204202808U CN 204202808 U CN204202808 U CN 204202808U CN 201420744401 U CN201420744401 U CN 201420744401U CN 204202808 U CN204202808 U CN 204202808U
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- cylinder chamber
- steel casing
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Abstract
The utility model relates to pressure transducer, especially the ceramic on metal pressure transducer with freeze plug, comprise stainless steel casing, stainless steel casing comprises the cylinder chamber on top and the connection screw socket of bottom, the cylinder chamber upper end of stainless steel casing is sealed by connector, cylinder chamber has step with the junction being connected screw socket, there is through hole at step center, ceramic core body is had in cylinder chamber, the bottom of pottery core body is arranged on the step of stainless steel casing by compresses seal, pottery core body and step in intracardiac installation freeze plug, bleeder vent is had to be communicated with at upper and lower for freeze plug two ends in the middle of freeze plug, pottery core body top is fixedly connected with pcb board lower surface with sealing copper band by spacing shim, between the upper surface of pcb board and connector, flexible board is installed.This ceramic on metal pressure transducer prevent test environment freeze the bad ceramic core body in top diaphragm and prevent ambient pressure from producing stress to the impact of ceramic core body diaphragm, extend serviceable life.
Description
Technical field
The utility model relates to pressure transducer, the ceramic on metal pressure transducer especially with freeze plug.
Background technology
Ceramic on metal pressure transducer is a product being arranged on that large truck vent gas treatment is used for testing urea chamber pressure, and ceramic on metal pressure transducer exactly for detecting urea cavity pressure, thus controls the spray volume of urea, makes NO in tail gas
xthe minimizing of discharge.Because ceramic on metal pressure transducer needs to work long hours in urea environment, urea crystals can be made to enter in ceramic on metal pressure transducer, make ceramic on metal pressure transducer lose its effect, reduction of service life.
Utility model content
The technical matters that the utility model solves is to provide the ceramic on metal pressure transducer of length of a kind of life-span.Concrete technical scheme is:
With the ceramic on metal pressure transducer of freeze plug, comprise stainless steel casing, stainless steel casing comprises the cylinder chamber on top and the connection screw socket of bottom, the cylinder chamber upper end of stainless steel casing is sealed by connector, cylinder chamber has step with the junction being connected screw socket, step center has through hole to make cylinder chamber and be connected screw socket and communicate, ceramic core body is had in cylinder chamber, the bottom of pottery core body is arranged on the step of stainless steel casing by compresses seal, pottery core body and step in intracardiac installation freeze plug, bleeder vent is had to be communicated with at upper and lower for freeze plug two ends in the middle of freeze plug, pottery core body top is fixedly connected with pcb board lower surface with sealing copper band by spacing shim, between the upper surface of pcb board and connector, flexible board is installed.
Connect screw socket bottom stainless steel casing and have O-ring seal.
The ceramic on metal pressure transducer of the band freeze plug that the utility model provides, freeze plug and supplementary structure thereof that material is silicon rubber is increased in ceramic core body, do not directly act on the diaphragm of ceramic core body but act on freeze plug when making product installation environment produce stress with ambient pressure under icing condition, can well prevent test environment from freezing and push up bad ceramic core body diaphragm and prevent ambient pressure from producing stress to the impact of ceramic core body diaphragm, improve the usability of product and extend serviceable life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With the ceramic on metal pressure transducer of freeze plug, comprise stainless steel casing 9, stainless steel casing 9 comprises the cylinder chamber on top and the connection screw socket of bottom, the cylinder chamber upper end of stainless steel casing 9 is sealed by connector 1, cylinder chamber has step with the junction being connected screw socket, step center has through hole to make cylinder chamber and be connected screw socket and communicate, ceramic core body 6 is had in cylinder chamber, the bottom of pottery core body 6 is arranged on by compresses seal 7 on the step of stainless steel casing 9, pottery core body 6 and step in intracardiac installation freeze plug 10, bleeder vent is had to be communicated with at freeze plug about 10 two ends in the middle of freeze plug 10, pottery core body 6 top is fixedly connected with pcb board 3 lower surface with sealing copper band 4 by spacing shim 5, between the upper surface of pcb board 3 and connector 1, flexible board 2 is installed.
Connect screw socket bottom stainless steel casing 9 and have O-ring seal 8.Ceramic on metal pressure transducer with freeze plug is installed and used air tight.
Claims (2)
1. be with the ceramic on metal pressure transducer of freeze plug, comprise stainless steel casing (9), stainless steel casing (9) comprises the cylinder chamber on top and the connection screw socket of bottom, the cylinder chamber upper end of stainless steel casing (9) is sealed by connector (1), it is characterized in that: described cylinder chamber has step with the junction being connected screw socket, step center has through hole to make cylinder chamber and be connected screw socket and communicate, ceramic core body (6) is had in cylinder chamber, the bottom of pottery core body (6) is arranged on the step of stainless steel casing (9) by compresses seal (7), pottery core body (6) and step in intracardiac installation freeze plug (10), bleeder vent is had freeze plug (10) to be communicated with at two ends up and down in the middle of freeze plug (10), pottery core body (6) top is fixedly connected with pcb board (3) lower surface with sealing copper band (4) by spacing shim (5), between the upper surface of pcb board (3) and connector (1), flexible board (2) is installed.
2. the ceramic on metal pressure transducer of band freeze plug according to claim 1, is characterized in that: described stainless steel casing (9) bottom connects screw socket O-ring seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744401.3U CN204202808U (en) | 2014-12-01 | 2014-12-01 | With the ceramic on metal pressure transducer of freeze plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744401.3U CN204202808U (en) | 2014-12-01 | 2014-12-01 | With the ceramic on metal pressure transducer of freeze plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204202808U true CN204202808U (en) | 2015-03-11 |
Family
ID=52660753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420744401.3U Active CN204202808U (en) | 2014-12-01 | 2014-12-01 | With the ceramic on metal pressure transducer of freeze plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204202808U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352650A (en) * | 2015-11-27 | 2016-02-24 | 上海立格仪表有限公司 | Piston induction amplifiable type Hart bus measuring instrument |
| CN106052953A (en) * | 2016-08-15 | 2016-10-26 | 西安森瑟斯传感器有限公司 | Shock-resistant ice-blockage resistant pressure transmitter |
| CN106840502A (en) * | 2017-04-09 | 2017-06-13 | 单志友 | Pressure sensor and its manufacture method |
| CN108362433A (en) * | 2018-04-15 | 2018-08-03 | 无锡盛赛传感科技有限公司 | A kind of encapsulating structure of anti-freeze type ceramic pressure sensor |
| CN108426597A (en) * | 2018-06-01 | 2018-08-21 | 无锡莱顿电子有限公司 | A kind of sensor with anti-freezing structure |
| CN108562392A (en) * | 2018-04-04 | 2018-09-21 | 合肥皖科智能技术有限公司 | A kind of encapsulating structure of capacitive pressure transducer |
| CN109989808A (en) * | 2019-04-30 | 2019-07-09 | 凯龙高科技股份有限公司 | A kind of anti-freeze type pressure switch for urea pump |
-
2014
- 2014-12-01 CN CN201420744401.3U patent/CN204202808U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352650A (en) * | 2015-11-27 | 2016-02-24 | 上海立格仪表有限公司 | Piston induction amplifiable type Hart bus measuring instrument |
| CN106052953A (en) * | 2016-08-15 | 2016-10-26 | 西安森瑟斯传感器有限公司 | Shock-resistant ice-blockage resistant pressure transmitter |
| CN106840502A (en) * | 2017-04-09 | 2017-06-13 | 单志友 | Pressure sensor and its manufacture method |
| CN108562392A (en) * | 2018-04-04 | 2018-09-21 | 合肥皖科智能技术有限公司 | A kind of encapsulating structure of capacitive pressure transducer |
| CN108362433A (en) * | 2018-04-15 | 2018-08-03 | 无锡盛赛传感科技有限公司 | A kind of encapsulating structure of anti-freeze type ceramic pressure sensor |
| CN108426597A (en) * | 2018-06-01 | 2018-08-21 | 无锡莱顿电子有限公司 | A kind of sensor with anti-freezing structure |
| CN109989808A (en) * | 2019-04-30 | 2019-07-09 | 凯龙高科技股份有限公司 | A kind of anti-freeze type pressure switch for urea pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |