CN203100967U - Integrated sealing base of gauge pressure sensor - Google Patents
Integrated sealing base of gauge pressure sensor Download PDFInfo
- Publication number
- CN203100967U CN203100967U CN 201320072139 CN201320072139U CN203100967U CN 203100967 U CN203100967 U CN 203100967U CN 201320072139 CN201320072139 CN 201320072139 CN 201320072139 U CN201320072139 U CN 201320072139U CN 203100967 U CN203100967 U CN 203100967U
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- CN
- China
- Prior art keywords
- sealing base
- glass insulator
- shell
- oil
- opening cavity
- 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
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Abstract
The utility model relates to an integrated sealing base of a gauge pressure sensor. The sealing base comprises a shell (1), wherein an opening cavity is formed in the shell; a glass insulator (3) is arranged in the opening cavity; a group of leads (5) is arranged in the glass insulator; a guide tube (4) is also connected in the glass insulator; and the lower end of the guide tube is communicated with the atmosphere and the upper end thereof is communicated with the upper part of the opening cavity. The sealing base is characterized in that an oil filling hole (1a) is formed on one side of the upper part of the shell (1); a sealing element is arranged in the oil filling hole and can be a steel ball (2a); the excircle of the steel ball (2a) is connected with the oil filling hole (1a) through interference fit; and the sealing element can also be a rivet (2b) which is connected with the oil filling hole (1a) through interference fit. The sealing base has the beneficial effects of reducing the probability of crack generation of the glass insulator and improving the sealability and reliability of the sealing base.
Description
Technical field
The utility model relates to a kind of pressure transducer sealing base, particularly a kind of integrated sealing base of gauge pressure formula pressure transducer.
Background technology
The principle of piezoresistive pressure sensor is to utilize the piezoresistive effect of monocrystalline silicon, and promptly the resistivity of material changes with impressed pressure that the principle change makes.Gauge pressure formula pressure transducer is wherein a kind of of piezoresistive pressure sensor.Gauge pressure formula sensor can be experienced with respect to atmospheric pressure and convert the pressure transducer of usable output signal to.The structure of this sensor mainly is made up of two parts, and the one, chip assembly, the 2nd, base housing.And for base housing, at present domestic production manufacturer production operation all is that the stainless steel bar car is made shell, and then holes, and by glass insulator one group of lead-in wire, wireway and oil filler pipe is sintered to fix in shell.In actual use, oil filler pipe is dead by the cold welding clamp, sealing, and glass insulator is cracked, and influences the sealing of base housing integral body.
Summary of the invention
The purpose of this utility model is to solve the problem that the glass insulator of existing gauge pressure formula pressure transducer easily cracks.
The utility model is achieved by the following technical programs:
A kind of integrated sealing base of gauge pressure formula pressure transducer, comprise shell, be provided with opening cavity in the shell, be provided with glass insulator in the opening cavity, be provided with one group of lead-in wire in the glass insulator, also be connected with a wireway in the glass insulator, the lower end of wireway is communicated with atmosphere, the upper end of wireway is communicated with the top of opening cavity, it is characterized in that top one side of shell is provided with oil-filled hole, is provided with seal in the oil-filled hole.
Described seal can be steel ball, and the cylindrical of steel ball is connected with oil-filled hole interference fit.
Described seal can be rivet, and rivet is connected with oil-filled hole interference fit.
Described glass insulator adopts devitrified glass or other electronics seal glasses.
The beneficial effects of the utility model have been to reduce the probability that glass insulator cracks, and have improved the sealing and the reliability of sealing base.
Following constipation closes drawings and Examples the utility model is further specified.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of embodiment 1 of the present utility model;
Fig. 2 is the main TV structure synoptic diagram of embodiment 2 of the present utility model.
Embodiment
As shown in Figure 1, the integrated sealing base of a kind of gauge pressure formula pressure transducer that the utility model provides, comprise shell 1, be provided with opening cavity in the shell, be provided with glass insulator 3 in the opening cavity, be provided with one group of lead-in wire 5 in the glass insulator, also be connected with a wireway 4 in the glass insulator, the lower end of wireway is communicated with atmosphere, the upper end of wireway is communicated with the top of opening cavity, top one side of described shell is provided with oil-filled hole 1a, is provided with steel ball 2a in the oil-filled hole, and the cylindrical of steel ball 2a is connected with oil-filled hole 1a interference fit.
Embodiment 2
As shown in Figure 2, the integrated sealing base of a kind of gauge pressure formula pressure transducer that the utility model provides, comprise shell 1, be provided with opening cavity in the shell, be provided with glass insulator 3 in the opening cavity, be provided with one group of lead-in wire 5 in the glass insulator, also be connected with a wireway 4 in the glass insulator, the lower end of wireway is communicated with atmosphere, the upper end of wireway is communicated with the top of opening cavity, top one side of described shell is provided with oil-filled hole 1a, is provided with rivet 2b in the oil-filled hole, and rivet 2b is connected with oil-filled hole 1a interference fit.
In sum, the utility model is by being arranged on oil-filled hole on the shell, and with seal and oil-filled hole interference fit, when avoiding making the cracking of glass insulator, guaranteed the overall tightness and the reliability of sealing base.
Claims (3)
1. the integrated sealing base of a gauge pressure formula pressure transducer, comprise shell (1), be provided with opening cavity in the shell, be provided with glass insulator (3) in the opening cavity, be provided with one group of lead-in wire (5) in the glass insulator, also be connected with a wireway (4) in the glass insulator, the lower end of wireway is communicated with atmosphere, the upper end of wireway is communicated with the top of opening cavity, it is characterized in that top one side of shell (1) is provided with oil-filled hole (1a), is provided with seal in the oil-filled hole.
2. the integrated sealing base of a kind of gauge pressure formula pressure transducer according to claim 1 is characterized in that seal can be steel ball (2a), and the cylindrical of steel ball (2a) is connected with oil-filled hole (1a) interference fit.
3. the integrated sealing base of a kind of gauge pressure formula pressure transducer according to claim 1 is characterized in that seal can be rivet (2b), and rivet (2b) is connected with oil-filled hole (1a) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072139 CN203100967U (en) | 2013-02-08 | 2013-02-08 | Integrated sealing base of gauge pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072139 CN203100967U (en) | 2013-02-08 | 2013-02-08 | Integrated sealing base of gauge pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203100967U true CN203100967U (en) | 2013-07-31 |
Family
ID=48852360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320072139 Expired - Fee Related CN203100967U (en) | 2013-02-08 | 2013-02-08 | Integrated sealing base of gauge pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203100967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295966A (en) * | 2023-03-03 | 2023-06-23 | 蚌埠市创业电子有限责任公司 | Double-chip multi-parameter pressure sensor base |
-
2013
- 2013-02-08 CN CN 201320072139 patent/CN203100967U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295966A (en) * | 2023-03-03 | 2023-06-23 | 蚌埠市创业电子有限责任公司 | Double-chip multi-parameter pressure sensor base |
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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: 20130731 Termination date: 20150208 |
|
| EXPY | Termination of patent right or utility model |