CN201772968U - Sealing base of pressure sensor - Google Patents
Sealing base of pressure sensor Download PDFInfo
- Publication number
- CN201772968U CN201772968U CN2010202633472U CN201020263347U CN201772968U CN 201772968 U CN201772968 U CN 201772968U CN 2010202633472 U CN2010202633472 U CN 2010202633472U CN 201020263347 U CN201020263347 U CN 201020263347U CN 201772968 U CN201772968 U CN 201772968U
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- Prior art keywords
- stepped hole
- casing
- housing
- utility
- model
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Abstract
The utility model relates to a sealing base of a pressure sensor, which comprises a casing (1) and lead wires (4) connected with the casing. The sealing base is characterized in that open cavities are formed at two ends of the casing, a platform is formed in the middle of the casing, a stepped hole is formed in the center of the platform of the casing, an air guide pipe (5) is connected with the interior of the stepped hole in a matched manner, a sealing piece (3) is arranged in the stepped hole in the position where the air guide pipe and the stepped hole are connected in a matched manner, and an air hole is formed in the center of the sealing piece. The utility model has the benefits that due to the adoption of the ceramic sealing piece, the utility model avoids the phenomena of poor uniformity and the clogging of the air guide pipe caused by glass head seal, so that the uniformity and reliability of the base are greatly improved.
Description
Technical field
The utility model relates to a kind of pressure transducer, particularly a kind of sealing base of pressure transducer.
Background technology
Pressure transducer has precision height, reliable operation, frequency response height, sluggish little, in light weight, advantages of simple structure and simple, can work under harsh conditions, is convenient to realize instrument, instrument digitizing.Be widely used in fields such as biology, medical science, chemical industry, rock-soil mechanics, meteorology, petroleum prospecting, space flight and aviation, obtain swift and violent development.The structure of pressure transducer mainly is made up of two big parts, wherein the glass capsulation pedestal is one of its critical component, and the insulation resistance of sensor, proof voltage, sealing, bonding performance, compression resistance performance all support realization by pedestal.When making the pressure transducer pedestal, traditional technology is that wireway is connected by glass head seal with shell, certain clearance is left in sealing-in wireway bottom, make wireway and casing insulation, because each workpiece size processing consistance is bad, influences the consistance of glass head seal, even causes gas port to stop up, cause the pedestal performance to descend, influence the performance of sensor
The utility model content
The purpose of this utility model is exactly for the bad shortcoming that causes gas port to stop up of existing pressure transducer pedestal glass head seal, the sealing base of a kind of pressure transducer that provides are provided.
The technical scheme that its technical matters that solves the utility model adopts is:
The sealing base of pressure transducer, comprise housing and the lead-in wire that is connected with housing, it is characterized in that: the housing two ends are provided with opening cavity and constitute a platform at the housing middle part, be provided with stepped hole at housing platform center, a wireway is connected in the stepped hole, be provided with diaphragm seal in the stepped hole at wireway and the stepped hole place of being connected, the center of diaphragm seal is provided with pore.
Described diaphragm seal is diaphragm seals commonly used such as potsherd, graphite flake, carbon element sheet, places potsherd in sealing-in wireway bottom, and wireway and housing are isolated.
On the basis of above-mentioned main technical schemes, can increase following further perfect technical scheme:
Described diaphragm seal pore equates with the hole size of topping bar of stepped hole.
After the beneficial effects of the utility model were to use the structure of potsherd, sensor base did not occur because of glass head seal causes the bad and wireway phenomenon of blocking of pedestal consistance, and the pedestal consistance improves greatly, and the reliability of pedestal has also improved.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings:
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model.
Embodiment
As shown in Figure 2, the sealing base of the utility model pressure transducer, comprise housing 1, the housing two ends are provided with opening cavity and constitute a platform at the housing middle part, on the housing platform, be provided with six sintering holes, six sintering holes are symmetrically distributed in the both sides at housing center, every side is three sintering holes of distribution evenly, six sintering pore size distributions are on same circumference, as shown in Figure 1, be provided with lead-in wire 4 in each sintering hole, one end of lead-in wire is arranged in the sintering hole and by glass insulator 2 and is sintered to fix in housing, and the other end of lead-in wire reaches outside, and the center of housing platform also is provided with stepped hole, be provided with a wireway 5 in the hole of getting out of a predicament or an embarrassing situation in the stepped hole, be provided with potsherd 3 in the stepped hole of wireway and stepped hole junction, the center of potsherd is provided with pore, and pore equates with the hole size of topping bar, wireway and potsherd are sintered to fix in the hole of getting out of a predicament or an embarrassing situation by glass insulator, and the hole of topping bar communicates with the pore of tracheae by potsherd.
Claims (2)
1. the sealing base of pressure transducer, the lead-in wire (4) that comprises housing (1) and be connected with housing, it is characterized in that: the housing two ends are provided with opening cavity and constitute a platform at the housing middle part, be provided with stepped hole at housing platform center, a wireway (5) is connected in the stepped hole, be provided with diaphragm seal (3) in the stepped hole at wireway and the stepped hole place of being connected, the center of diaphragm seal is provided with pore.
2. the sealing base of pressure transducer according to claim 1, it is characterized in that: described diaphragm seal (3) pore equates with the hole size of topping bar of stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202633472U CN201772968U (en) | 2010-07-15 | 2010-07-15 | Sealing base of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202633472U CN201772968U (en) | 2010-07-15 | 2010-07-15 | Sealing base of pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772968U true CN201772968U (en) | 2011-03-23 |
Family
ID=43752816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202633472U Expired - Fee Related CN201772968U (en) | 2010-07-15 | 2010-07-15 | Sealing base of pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772968U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207045A (en) * | 2012-01-17 | 2013-07-17 | 株式会社不二工机 | Pressure sensor |
| CN103672182A (en) * | 2012-09-05 | 2014-03-26 | 北京航天试验技术研究所 | Sealing method of sensor at low temperature and under high pressure |
| CN104181202A (en) * | 2014-08-13 | 2014-12-03 | 中国电子科技集团公司第四十八研究所 | Multi-redundancy hydrogen sensor |
| CN105806519A (en) * | 2016-04-29 | 2016-07-27 | 中国农业大学 | Pressure sensor based on low temperature co-firing ceramic and manufacturing method |
-
2010
- 2010-07-15 CN CN2010202633472U patent/CN201772968U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207045A (en) * | 2012-01-17 | 2013-07-17 | 株式会社不二工机 | Pressure sensor |
| CN103207045B (en) * | 2012-01-17 | 2016-11-23 | 株式会社不二工机 | Pressure transducer |
| CN103672182A (en) * | 2012-09-05 | 2014-03-26 | 北京航天试验技术研究所 | Sealing method of sensor at low temperature and under high pressure |
| CN104181202A (en) * | 2014-08-13 | 2014-12-03 | 中国电子科技集团公司第四十八研究所 | Multi-redundancy hydrogen sensor |
| CN104181202B (en) * | 2014-08-13 | 2017-03-15 | 中国电子科技集团公司第四十八研究所 | A kind of many redundancy hydrogen gas sensors |
| CN105806519A (en) * | 2016-04-29 | 2016-07-27 | 中国农业大学 | Pressure sensor based on low temperature co-firing ceramic and manufacturing method |
| CN105806519B (en) * | 2016-04-29 | 2019-03-15 | 中国农业大学 | A kind of pressure sensor and manufacturing method based on low-temperature co-fired ceramics |
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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: 20110323 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |