CN204575240U - A kind of pressure unit - Google Patents
A kind of pressure unit Download PDFInfo
- Publication number
- CN204575240U CN204575240U CN201520036287.3U CN201520036287U CN204575240U CN 204575240 U CN204575240 U CN 204575240U CN 201520036287 U CN201520036287 U CN 201520036287U CN 204575240 U CN204575240 U CN 204575240U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- inner chamber
- programme control
- control circut
- core body
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Abstract
The utility model belongs to automation field, is specifically related to a kind of pressure unit.In order to provide a kind of to high temperature and with the pressure survey of corrosive gas, and the device of product accuracy can be kept for a long time, this device comprises the pedestal and high-temperature shielding cable with inner chamber, one end of pedestal offers the tracting pressuring hole being communicated with ambient atmosphere and inner chamber, pedestal inner chamber comprises ceramic pressure drag core body and programme control circut plate, ceramic pressure drag core body is provided with in pedestal inner chamber, pottery pressure drag core body is connected with programme control circut plate, programme control circut plate is fixed in the inner chamber of pedestal, the other end of pedestal is airtight by bonnet, high-temperature shielding cable is connected with programme control circut plate through bonnet.By ceramic pressure drag core body, pressure is converted into electric signal, high-temperature shielding cable transmission be passed through to rear after the process of programme control circut plate, this device can carry out pressure survey to high temperature with corrosive gas in the measurement environment of-25 DEG C ~ 125 DEG C, and can keep the accuracy of product for a long time.
Description
Technical field
The utility model belongs to automation field, is specifically related to a kind of pressure unit.
Background technology
The pressure survey mode in present vehicle maintenance service field is the instrument and meter adopting physical construction, namely the pressure switch of pointer pressure or spring structure is used to carry out pressure test, this kind of product needed has personnel to carry out reading or monitoring in test site, not only person works's bad environments, and there is certain danger, intelligence degree is very low, and the space of installing transmitter is less, the environment measured is high temperature and has stronger vibrations, circuit board at high temperature works long hours, and the accuracy that product requirement reaches exists instability.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of pressure unit, and this device can measure high temperature and with the pressure of corrosive gas, and can keep the accuracy of product for a long time.
In order to achieve the above object, the utility model comprises the pedestal and high-temperature shielding cable with inner chamber, one end of pedestal offers the tracting pressuring hole being communicated with ambient atmosphere and inner chamber, pedestal inner chamber comprises ceramic pressure drag core body and programme control circut plate, pottery pressure drag core body is connected with programme control circut plate, programme control circut plate is fixed in the inner chamber of pedestal, and the other end of pedestal is airtight by bonnet, and high-temperature shielding cable is connected with programme control circut plate through bonnet.
An O type viton seal ring is provided with between the one side that described ceramic pressure drag core body and pedestal have a tracting pressuring hole.
Red copper pad is provided with between described programme control circut plate and ceramic pressure drag core body.
Elastic circlip is provided with between described red copper pad and bonnet.
The 2nd O type viton seal ring is provided with between described bonnet and pedestal.
Described bonnet is provided with protective ring on the hole that high-temperature shielding cable passes through.
Compared with prior art, pressure is converted into electric signal by ceramic pressure drag core body by the utility model, high-temperature shielding cable transmission be passed through to rear after the process of programme control circut plate, this device adopts split-type structural, pottery pressure drag core body can carry out pressure survey to high temperature and with corrosive gas in the measurement environment of-25 DEG C ~ 125 DEG C, and can keep the accuracy of product for a long time.
Further, the utility model adopts the sealing of O type viton seal ring, prevents dust from entering, assurance device stability, the extension fixture life-span.
Further, the utility model adopts protective ring to comprise high-temperature shielding cable, extends the serviceable life of high-temperature shielding cable.
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 further.
See Fig. 1, a kind of pressure unit of the utility model, comprise the pedestal 1 and high-temperature shielding cable 10 with inner chamber, one end of pedestal 1 offers and is communicated with ambient atmosphere and inner chamber tracting pressuring hole, pedestal 1 inner chamber comprises ceramic pressure drag core body 3 and programme control circut plate 5, and adopt an O type viton seal ring 2 to seal, pottery pressure drag core body 3 is connected with programme control circut plate 5, red copper pad 4 is provided with between programme control circut plate 5 and ceramic pressure drag core body 3, elastic circlip 6 is provided with between red copper pad 4 and bonnet 8, programme control circut plate 5 is fixed in the inner chamber of pedestal 1, the other end of pedestal 1 is airtight by bonnet 8, the 2nd O type viton seal ring 7 is provided with between bonnet 8 and pedestal 1, high-temperature shielding cable 10 is connected with programme control circut plate 5 through bonnet 8, bonnet 8 is provided with protective ring 9 on the hole that high-temperature shielding cable 10 passes through.
Circuit of the present utility model adopts one-line program control demarcation design, uses 5VDC ± 0.25VDC constant pressure source to power.Automatic Calibration can be carried out after product encapsulation terminates.This method can effectively be avoided in product encapsulation process the impact that the performances such as product accuracy, the linearity are brought.
The course of work: work as air pressure change, pressure change experienced by pottery pressure drag core body 3, occur to convert the change of pressure to electric signal after deformation, the standard signal that this electric signal to be zoomed into 0.5V ~ 4.5V through the amplifying circuit of programme control circut plate 5 by electric signal is exported by high-temperature shielding cable 10.Circuit protection module devises anti-jamming circuit, effectively can ensure that product can the work of safety and stability.
Claims (6)
1. a pressure unit, it is characterized in that: comprise the pedestal (1) and high-temperature shielding cable (10) with inner chamber, one end of pedestal (1) offers the tracting pressuring hole being communicated with ambient atmosphere and inner chamber, pedestal (1) inner chamber comprises ceramic pressure drag core body (3) and programme control circut plate (5), pottery pressure drag core body (3) is connected with programme control circut plate (5), programme control circut plate (5) is fixed in the inner chamber of pedestal (1), the other end of pedestal (1) is airtight by bonnet (8), high-temperature shielding cable (10) is connected with programme control circut plate (5) through bonnet (8).
2. a kind of pressure unit according to claim 1, is characterized in that: be provided with an O type viton seal ring (2) between the one side that described ceramic pressure drag core body (3) and pedestal (1) have a tracting pressuring hole.
3. a kind of pressure unit according to claim 1, is characterized in that: be provided with red copper pad (4) between described programme control circut plate (5) and ceramic pressure drag core body (3).
4. a kind of pressure unit according to claim 3, is characterized in that: be provided with elastic circlip (6) between described red copper pad (4) and bonnet (8).
5. a kind of pressure unit according to claim 1, is characterized in that: be provided with the 2nd O type viton seal ring (7) between described bonnet (8) and pedestal (1).
6. a kind of pressure unit according to claim 1, is characterized in that: described bonnet (8) is provided with protective ring (9) on the hole that high-temperature shielding cable (10) passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036287.3U CN204575240U (en) | 2015-01-19 | 2015-01-19 | A kind of pressure unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036287.3U CN204575240U (en) | 2015-01-19 | 2015-01-19 | A kind of pressure unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204575240U true CN204575240U (en) | 2015-08-19 |
Family
ID=53867859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520036287.3U Expired - Fee Related CN204575240U (en) | 2015-01-19 | 2015-01-19 | A kind of pressure unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204575240U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017787A (en) * | 2016-07-06 | 2016-10-12 | 济南海能仪器股份有限公司 | Anticorrosion pressure transducer |
| CN108302332A (en) * | 2018-01-31 | 2018-07-20 | 绵阳市维博电子有限责任公司 | A kind of micro- leak detection device of combustion gas |
| CN110514349A (en) * | 2019-09-06 | 2019-11-29 | 江苏盛仕铭科技有限公司 | A kind of compact high temperature resistant pressure transmitter |
-
2015
- 2015-01-19 CN CN201520036287.3U patent/CN204575240U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017787A (en) * | 2016-07-06 | 2016-10-12 | 济南海能仪器股份有限公司 | Anticorrosion pressure transducer |
| CN108302332A (en) * | 2018-01-31 | 2018-07-20 | 绵阳市维博电子有限责任公司 | A kind of micro- leak detection device of combustion gas |
| CN110514349A (en) * | 2019-09-06 | 2019-11-29 | 江苏盛仕铭科技有限公司 | A kind of compact high temperature resistant 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180119 |