CN103675318A - Gas pressure sensor assembly structure - Google Patents
Gas pressure sensor assembly structure Download PDFInfo
- Publication number
- CN103675318A CN103675318A CN201210321674.2A CN201210321674A CN103675318A CN 103675318 A CN103675318 A CN 103675318A CN 201210321674 A CN201210321674 A CN 201210321674A CN 103675318 A CN103675318 A CN 103675318A
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- China
- Prior art keywords
- steel jacket
- assembly structure
- steel bushing
- injection molding
- plastic rod
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Abstract
The invention discloses a gas pressure sensor assembly structure which comprises a steel jacket adopting a barrel-shaped structure with a closed top end, wherein an injection molding hole which extends outwards is formed in the tail end of the steel jacket; the barrel wall on the edge of the injection molding hole in the steel jacket is folded outwards to form a folded edge. According to the gas pressure sensor assembly structure, a wavy continuous curve is formed on the periphery of the folded edge; the steel jacket subjected to injection molding and packaging is coated with a plastic rod, and the steel jacket and the plastic rod form a coaxial integral structure; the wavy continuous curve structure on the periphery of the folded edge can form a stable stress structure between the interior of the plastic rod and a coating plastic after injection molding and packaging, so that the steel jacket is effectively prevented from rotating in the plastic rod; the outwardly folded edge also can be used for effectively preventing the steel jacket from being pulled out from the plastic rod.
Description
Technical field
The present invention relates to the technical field of sensor, is that a kind of steel bushing of can avoiding is subjected to displacement in injection moulding process specifically, thereby improves the baroceptor assembly structure of product sensor precision.
Background technology
Baroceptor is to measure to take the sensor of each vehicle wheel rotational speed of vehicle that gas braking is mode of braking, is indispensable critical component in gas braking ABS system.
Baroceptor assembly structure, comprising: steel bushing, be shaped as the cylinder-like structure of top closure, and its end arranges the injection hole of outside extension.In the production of baroceptor, steel bushing need to be inserted into and in injection mold, carry out injection moulding, thereby steel bushing injection molding packaging is formed to sensor construction in sticking plaster, the plastics that lead-in wire forms through encapsulation are connected with the device in steel bushing, but because steel bushing plastics around being coated on it are only combined by friction force, while being subject to external force, steel bushing can be separated with plastics, thereby steel bushing easily rotates in sticking plaster, or in sticking plaster, extract under external force, cause the damage of sensor construction, or affect the accuracy of detection of sensor.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of steel bushing of can avoiding and is subjected to displacement in injection moulding process, thereby improves the baroceptor assembly structure of product sensor precision.
The technical scheme that the present invention takes for the technical matters existing in solution known technology is:
Baroceptor assembly structure of the present invention, comprising: steel bushing, be shaped as the cylinder-like structure of top closure, and its end arranges the injection hole of outside extension, and on steel bushing, the barrel of injection hole marginal position outwards turns down formation flanging.
The present invention can also be by the following technical solutions:
The periphery of above-mentioned flanging is wavy continuous curve.
The length that above-mentioned flanging turns up is 1-3 millimeter.
Advantage and good effect that the present invention has are:
In baroceptor assembly structure of the present invention, steel bushing coaxial packaging is injection-moulded in sticking plaster, forms baroceptor structure, and on steel bushing, the barrel of injection hole marginal position outwards turns down formation flanging, and the periphery of flanging is wavy continuous curve.Steel bushing is carried out after injection molding packaging, the outside coating plastic rod of steel bushing, steel bushing and sticking plaster are coaxial integrative-structure, the peripheral wavy continuous curve structure arranging of flanging can form stable force structure after injection molding packaging between the inner and coated plastics of sticking plaster, effectively prevent that steel bushing from rotating in sticking plaster, the flanging simultaneously turning up also can effectively stop steel bushing to be pulled out from sticking plaster, thereby has improved the reliability of baroceptor, has avoided the damage of sensor construction.
Accompanying drawing explanation
Fig. 1 is the cross sectional view of the middle steel bushing of baroceptor assembly structure of the present invention;
Fig. 2 is the schematic diagram of steel bushing injection hole position in baroceptor assembly structure of the present invention.
Embodiment
Referring to drawings and Examples, the present invention will be described in detail.
Fig. 1 is the cross sectional view of the middle steel bushing of baroceptor assembly structure of the present invention; Fig. 2 is the schematic diagram of steel bushing injection hole position in baroceptor assembly structure of the present invention.
As shown in Figure 1 and Figure 2, baroceptor assembly structure of the present invention, comprising: steel bushing 1, be shaped as the cylinder-like structure of top closure, and its end arranges the injection hole 2 of outside extension, and on steel bushing, the barrel of injection hole marginal position outwards turns down and forms flanging 3.When injection moulding, steel bushing is inserted in injection mold, and the flanging that injection hole place forms is stayed outside the opening of injection mold.
The periphery of flanging is wavy continuous curve, the length that flanging turns up is 1 millimeter, steel bushing is carried out after injection molding packaging, the outside coating plastic rod of steel bushing, steel bushing and sticking plaster are coaxial integrative-structure, and the peripheral wavy continuous curve structure arranging of flanging can form stable force structure after injection molding packaging between the inner and coated plastics of sticking plaster, effectively prevent that steel bushing from rotating in sticking plaster, the flanging simultaneously turning up also can effectively stop steel bushing to be pulled out from sticking plaster.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention with preferred embodiment openly as above, yet, not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (3)
1. a baroceptor assembly structure, comprising: steel bushing, be shaped as the cylinder-like structure of top closure, and its end arranges the injection hole of outside extension, it is characterized in that: on steel bushing, the barrel of injection hole marginal position outwards turns down formation flanging.
2. baroceptor assembly structure according to claim 1, is characterized in that: the periphery of above-mentioned flanging is wavy continuous curve.
3. baroceptor assembly structure according to claim 2, is characterized in that: the length that above-mentioned flanging turns up is 1-3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210321674.2A CN103675318A (en) | 2012-08-31 | 2012-08-31 | Gas pressure sensor assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210321674.2A CN103675318A (en) | 2012-08-31 | 2012-08-31 | Gas pressure sensor assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103675318A true CN103675318A (en) | 2014-03-26 |
Family
ID=50313497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210321674.2A Pending CN103675318A (en) | 2012-08-31 | 2012-08-31 | Gas pressure sensor assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103675318A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5823802A (en) * | 1997-07-30 | 1998-10-20 | General Motors Corporation | Electrical connector with combination seal and contact member |
| CN101216496A (en) * | 2007-12-28 | 2008-07-09 | 联合汽车电子有限公司 | Assembled type rotation speed sensor |
| CN201191194Y (en) * | 2008-04-17 | 2009-02-04 | 林金龙 | Axle sleeve construction of speedometer sensor |
| CN201251493Y (en) * | 2008-09-04 | 2009-06-03 | 孔志能 | Minitype pressure gauge with a diaphragm type plastic splint movement |
| CN201548249U (en) * | 2009-12-05 | 2010-08-11 | 杭州世鼎汽车传感科技有限公司 | Vehicular sensor end cover |
-
2012
- 2012-08-31 CN CN201210321674.2A patent/CN103675318A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5823802A (en) * | 1997-07-30 | 1998-10-20 | General Motors Corporation | Electrical connector with combination seal and contact member |
| CN101216496A (en) * | 2007-12-28 | 2008-07-09 | 联合汽车电子有限公司 | Assembled type rotation speed sensor |
| CN201191194Y (en) * | 2008-04-17 | 2009-02-04 | 林金龙 | Axle sleeve construction of speedometer sensor |
| CN201251493Y (en) * | 2008-09-04 | 2009-06-03 | 孔志能 | Minitype pressure gauge with a diaphragm type plastic splint movement |
| CN201548249U (en) * | 2009-12-05 | 2010-08-11 | 杭州世鼎汽车传感科技有限公司 | Vehicular sensor end cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |