CN203053627U - Pressure sensor - Google Patents
Pressure sensor Download PDFInfo
- Publication number
- CN203053627U CN203053627U CN 201220615096 CN201220615096U CN203053627U CN 203053627 U CN203053627 U CN 203053627U CN 201220615096 CN201220615096 CN 201220615096 CN 201220615096 U CN201220615096 U CN 201220615096U CN 203053627 U CN203053627 U CN 203053627U
- Authority
- CN
- China
- Prior art keywords
- core body
- metal sleeve
- pressure transducer
- pressure sensor
- screw thread
- 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
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a pressure sensor. The pressure sensor includes a metal casing and a core body sheathed in the metal casing. A joint of the core body and the metal casing is provided with a screw thread; and the core body is connected with the metal casing through the screw thread and laser welding. According to the pressure sensor of the utility model, the core body is connected with the metal casing through the screw thread and the laser welding, as a result, after forcedly vibrated and shocked by complex shock waves, the pressure sensor can have structural integrity, and normal working ability of the pressure sensor can be maintained, and no abnormal phenomenon occurs.
Description
Technical field
The utility model belongs to pressure transducer manufacturing technology field, relates in particular to a kind of pressure transducer core body.
Background technology
The sensor production prior art is to utilize integrated circuit technology, diffuses into p type impurity at the N-type silicon chip, forms PN junction at both surface of contact, again with series of processes, makes resistance bridge, in order to experience pressure.By scolding tin, with inside and outside wire bonds, add the assembling that bonding mode carries out each parts with screw thread more again.With the sensor that this technology is made, owing to be that PN junction is isolated, along with temperature raises, leakage current increases, so that the performance severe exacerbation, its ultimate temperature is 125 ℃.Be wire bonds again, 168 ℃ of general scolding tin temperature, high temperature scolding tin is said so 300 ~ 400 ℃, actual has just melted to 250 ℃, in addition, it is exactly assembly problem, utilize to glued joint and engage thread, in the environment of high temperature and judder, tackifier will charing, screw thread will become flexible, thereby causes sensor failure.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of pressure transducer is provided, and this sensor can be enough after judder and the impact of complicated shock wave by structure optimization, and structural integrity keeps the operate as normal ability, no abnormal phenomenon.
The purpose of this utility model solves by the following technical programs:
This pressure transducer comprises metal sleeve and is enclosed within the interior core body of metal sleeve that the coupling part of described core body and metal sleeve is provided with screw thread, and core body and metal sleeve link together by the mode that screw thread adds laser bonding.
Above-mentioned core body comprises columned housing, is provided with horizontal groove in the upper end of described housing, is welded with soi chip in the described horizontal groove.
Be provided with the lead-in wire electrode in the above-mentioned housing, the pressure welding point electrode of described soi chip is connected with the lead-in wire electrode of housing by spun gold.
Above-mentioned lower part of frame is provided with annular groove.
One end of above-mentioned metal sleeve is provided with external thread, and metal sleeve middle part is by sheathed and nut fixedly arranged.
The internal lead of above-mentioned core body is connected to outer lead by anchor clamps.
Pressure transducer of the present utility model adopts core body and metal sleeve to adopt screw thread to add the connected mode of laser bonding, has solved after judder and the impact of complicated shock wave, and structural integrity keeps the operate as normal ability, no abnormal phenomenon.
Description of drawings
Fig. 1 is the structural representation that core body A of the present utility model extracts metal sleeve B out;
Fig. 2 is the complete assembling of the utility model back structural representation;
Fig. 3 is core body A structure cut-open view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1 and Fig. 2: pressure transducer of the present utility model, comprise metal sleeve B and be enclosed within the interior core body A of metal sleeve B, the coupling part of core body A and metal sleeve B is provided with screw thread, and core body A and metal sleeve B link together by the mode that screw thread adds laser bonding.The end of metal sleeve B is provided with external thread E, and metal sleeve B middle part is by sheathed and nut D fixedly arranged.The internal lead 8 of core body A is connected to outer lead 9 by anchor clamps 7.
Referring to Fig. 3: core body A described in the utility model comprises columned housing 1, is provided with horizontal groove 4 in the upper end of housing 1, is welded with soi chip 2 in the horizontal groove 4.Be provided with the lead-in wire electrode in the housing 1, the pressure welding point electrode of described soi chip 2 is connected with the lead-in wire electrode of housing 1 by spun gold 3.The bottom of housing 1 is provided with annular groove 5.
Claims (6)
1. pressure transducer, it is characterized in that, comprise metal sleeve (B) and be enclosed within the interior core body (A) of metal sleeve (B), described core body (A) is provided with screw thread with the coupling part of metal sleeve (B), and core body (A) links together by the mode that screw thread adds laser bonding with metal sleeve (B).
2. pressure transducer according to claim 1 is characterized in that, described core body (A) comprises columned housing (1), is provided with horizontal groove (4) in the upper end of described housing (1), is welded with soi chip (2) in the described horizontal groove (4).
3. pressure transducer according to claim 2 is characterized in that, described housing is provided with the lead-in wire electrode in (1), and the pressure welding point electrode of described soi chip (2) is connected with the lead-in wire electrode of housing (1) by spun gold (3).
4. pressure transducer according to claim 2 is characterized in that, the bottom of described housing (1) is provided with annular groove (5).
5. pressure transducer according to claim 1 is characterized in that, an end of described metal sleeve (B) is provided with external thread (E), and metal sleeve (B) middle part is by sheathed and nut (D) fixedly arranged.
6. pressure transducer according to claim 1 is characterized in that, the internal lead (8) of described core body (A) is connected to outer lead (9) by anchor clamps (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220615096 CN203053627U (en) | 2012-11-19 | 2012-11-19 | Pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220615096 CN203053627U (en) | 2012-11-19 | 2012-11-19 | Pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053627U true CN203053627U (en) | 2013-07-10 |
Family
ID=48736569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220615096 Expired - Fee Related CN203053627U (en) | 2012-11-19 | 2012-11-19 | Pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203053627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644984A (en) * | 2013-11-27 | 2014-03-19 | 芜湖通和汽车管路系统有限公司 | Miniature pressure sensor |
-
2012
- 2012-11-19 CN CN 201220615096 patent/CN203053627U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644984A (en) * | 2013-11-27 | 2014-03-19 | 芜湖通和汽车管路系统有限公司 | Miniature pressure sensor |
| CN103644984B (en) * | 2013-11-27 | 2016-03-02 | 芜湖致通汽车电子有限公司 | A kind of micro pressure sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104117747B (en) | Electronic encapsulation shell lead welding method | |
| CN203053627U (en) | Pressure sensor | |
| CN102980692B (en) | Shock-resistant pressure transducer of a kind of high temperature and preparation method thereof | |
| CN203589042U (en) | Axial diode | |
| CN203733839U (en) | Cob light source module | |
| CN201862919U (en) | Multiple-pin composite welding head with balanced amplitude | |
| CN202585399U (en) | Lead frame | |
| CN202928730U (en) | Core body of pressure sensor | |
| CN205920991U (en) | LED packaging structure | |
| CN203103514U (en) | Connection structure of sensor cable connector | |
| CN204257662U (en) | A kind of high-performance axial diode | |
| CN207676957U (en) | A kind of high power battery cap assembly and high power battery | |
| CN202797458U (en) | Damping device for connection wire of sensor | |
| CN103545435A (en) | High-reliability weld wire device applied to SMD (surface mount device) light-emitting diode | |
| CN201796879U (en) | Diode for automobile power generator | |
| CN202832495U (en) | Sealing connector body | |
| CN202172189U (en) | Filtering connector | |
| CN202281651U (en) | High overload impact resistant infrared detector case assembly | |
| CN203083763U (en) | Flat membrane pressure sensor | |
| CN201252157Y (en) | Diode lead-wire welding spot of automobile rectifier | |
| CN208767526U (en) | A kind of feeder line encapsulating connector | |
| CN203100966U (en) | Integrated sealing base of absolute pressure sensor | |
| CN203536408U (en) | Plastic package diode | |
| CN202453015U (en) | Ultrasonic water meter transducer | |
| CN202792655U (en) | Glass tube and metal tube sealing and connecting device |
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: 20130710 Termination date: 20171119 |