CN203893869U - Sensor with excellent tightness - Google Patents
Sensor with excellent tightness Download PDFInfo
- Publication number
- CN203893869U CN203893869U CN201420230953.2U CN201420230953U CN203893869U CN 203893869 U CN203893869 U CN 203893869U CN 201420230953 U CN201420230953 U CN 201420230953U CN 203893869 U CN203893869 U CN 203893869U
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- China
- Prior art keywords
- sensor
- glue
- housing
- main body
- cable
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- Expired - Fee Related
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Abstract
The utility model relates to a sensor with excellent tightness, and belongs to a sensor. The sensor with excellent tightness comprises a housing, a circuit body is fixedly connected with a main body, and a contact-type sealing bearing is adopted between a main shaft and the main body. The sensor is characterized in that a first glue storage groove is disposed on the coordinating face of the bearing and main body, the first glue storage groove is filled with a first soft sealing glue, a second glue storage special-shaped annular groove is disposed at the joint of the main body and the housing and is filled with a second soft sealing glue, a glue storage bin is disposed at the line out-going part of the housing and is a relatively independent space formed between the housing and a printed board welded with a cable, the cable penetrates through the interior of the glue storage bin, the gap between the cable and the glue storage bin is filled with a third soft sealing glue, and a plurality of grooves are disposed on the housing at the two sides of the glue storage bin and are in saw-tooth arrangement. The sensor with the excellent tightness is advantageous in that the structure is novel, the complex assembly process is simplified, the assembling difficulty is greatly reduced, the reliability of the sensor is raised, and the sealing effect is also indirectly enhanced.
Description
Technical field
The utility model relates to a kind of sensor.
Background technology
In recent years, have the miniaturization of higher protection level, economical sensor, day by day become more and more users' active demand, this is the encapsulating method to sensor just, has proposed higher requirement.Traditional sensor design of Sealing Structure, can adopt the interference fit being formed by O RunddichtringO and housing conventionally, as the encapsulating method of main body and housing joint; And adopt the parts such as terminal clamp tight coupling, water joint, rubber bushing, as the encapsulating method of housing outlet; And tend to ignore the sealing for output shaft part.
Due to little, the microsensor of diameter below φ 48mm, in order to save installing space, periphery adopts irregularly shaped design more, and this just makes it cannot use O RunddichtringO, and also just difficulty meets higher requirement of shelter.On the other hand, due to the restriction of the conditions such as sensor internal space, user installation space, cable outlet position cannot be used the parts as terminal clamp tight coupling, water joint, rubber bushing etc. with protective action.And the at present known mode that fixes cable completely by injecting glue filling sensor outlet, owing to filling often 1～2 face of an attached sensors body of glue, adhesion is little, make the stretching resistance value of cable only have 3 ~ 4kgf, pullled or easily got loose when root bending at cable, affect protection effect, the encapsulation scheme that this just makes outlet, becomes the another obstacle that high protection miniaturized sensors manufactures and designs.And at present for the protection under the non-operating condition at sensors such as assembling, accumulatings, also uncared-for often.
For sensor, dust and impurity can make its inner accurate device be polluted, thereby affect the Stability and veracity of signal output, so higher protection, for the normal operation of sensor, is very important.
Summary of the invention
The utility model provides a kind of sensor of good airproof performance, the problem that height protects to solve, miniaturized sensors encapsulating method is subject to the factor restriction such as structure, space.
The technical scheme that the utility model is taked is: comprise housing, circuit board is fixedly connected with main body, between main shaft and main body, adopt contact seal bearing, on bearing and main body mating surface, arrange and deposit glue groove one, this is deposited and in glue groove one, is filled with flexible adhesive sealant one, make it to form an O-ring seal, the joint of this main body and housing is deposited the special-shaped annular groove two of glue, this is deposited and in glue annular groove two, is filled with flexible adhesive sealant two, form a special-shaped O-ring seal, You Cunjiao storehouse, housing outlet, be by housing and be welded with the relatively independent space forming between the printed board of cable, cable is deposited inside, glue storehouse and is run through from this, cable and the gap flexible adhesive sealant three of depositing between glue storehouse are filled up, deposit on two side bodies of glue storehouse and have multiple grooves, this groove indentation is arranged,
There is the nonmetal sealing-plug of favorable elasticity, with the axis hole interference fit of sensor main shaft outer end;
User installation removal hole clamping on gland bonnet and housing,
Gland bonnet and housing mating surface adopt the bent structure of ditch.
The utility model has the advantage of: in less space, utilize the structure of Nover practical, make sensor reach higher protection level.This protection does not exist only in working sensor process, also be present under the off working states such as accumulating, installation, dismounting, sensor is under higher protection level all the time, and this just greatly reduces its inner contaminated possibility, has also reduced the failure rate producing owing to polluting.Due to novel structure, this method is also very easily in practical operation, has simplified loaded down with trivial details assembling process, greatly reduces assembly difficulty.Meanwhile, this method has also improved the tensile strength of cable, makes the tensile strength of cable and housing junction improve nearly 1 times, so just be enough to ensure that cable is being subject to larger pull and when bending, be difficult for departing from housing, improved the reliability of sensor, also indirectly strengthened sealing effectiveness.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is the partial structurtes schematic diagram of the utility model cable outlet part;
Fig. 4 is the B-B cut-open view of Fig. 3;
Fig. 5 is the partial enlarged view that the utility model main shaft and main body joint are deposited glue groove one;
Fig. 6 is the partial enlarged view that the utility model main body and housing joint are deposited the special-shaped annular groove two of glue.
Embodiment
Comprise housing 8, circuit board 7 is fixedly connected with main body 6, between main shaft 2 and main body 6, adopt contact seal bearing 4, on bearing 4 and main body 6 mating surfaces, arrange and deposit glue groove 1, this is deposited and in glue groove 1, is filled with flexible adhesive sealant 1, make it to form an O-ring seal, this main body 6 is deposited the special-shaped annular groove 25 of glue with the joint of housing 8, this is deposited and in glue annular groove 25, is filled with flexible adhesive sealant 2 14, form a special-shaped O-ring seal, You Cunjiao storehouse, housing outlet 11, be by housing 8 and be welded with the relatively independent space forming between the printed board 7 of cable 12, cable 12 is deposited 11 inside, glue storehouse and is run through from this, cable 12 and the gap flexible adhesive sealant 3 15 of depositing between glue storehouse 11 are filled up, deposit on the side body of 11 liang, glue storehouse and have multiple grooves 801, this groove indentation is arranged,
There is the nonmetal sealing-plug 1 of favorable elasticity, with the axis hole interference fit of sensor main shaft 2 outer ends;
User installation removal hole 10 clampings on gland bonnet 9 and housing,
Gland bonnet 9 adopts the bent structure of ditch with housing mating surface.
Principle explanation: the sealing-plug on the axis hole of sensor main shaft outer end, can intercept sensor internal and extraneous intercommunication, can avoid dust and other impurity in user assembled and storage and transport process to enter sensor internal; Gland bonnet on housing, user takes off in the time of installation and removal sensor, in accumulating and sensor operation process, installs, and can prevent as much as possible that dust and other impurity from entering sensor; At the cable outlet mouth place of housing, arrange one and deposit Jiao Cang, make to form between housing and the printed board of welding cable a relatively independent space, cable runs through from its inside, cable and the gap flexible adhesive sealant of depositing between glue storehouse are filled up, and after adhesive curing, form firm hermetically-sealed construction; In the time that gas-tight silo designs, to deposit on two side bodies of glue storehouse and have multiple grooves, this groove indentation is arranged, increase the contact area of glue and bulkhead as far as possible, to improve the bend resistance ability of cable, prevent that cable root from bending the glue causing and getting loose, affect fixing and sealing effectiveness.Between main shaft and main body, adopt sealing bearing, then bearing and main body coupling part are sealed, so just can be in the situation that not using oil sealing, for sensor provides higher protection; For the abnormally-structured sensor that cannot use O RunddichtringO, main body one side at main body and housing joint arranges an annular groove, inner filling flexible fluid sealant, glue is full of the gap of main body and housing junction, after solidifying, form a special-shaped O-ring seal, the impurity such as dust are intercepted in sensor outside; The flexible adhesive sealant of filling everywhere, has good mobility, the gap that applicable filling is less; After this adhesive curing, except the sealing characteristics that itself has, also there is pliability to a certain degree and the steadiness of certain degree, strengthened the reliability at cable outlet place.Meanwhile, this class glue has good waterproof, grease proofing and corrosion resistance characteristic, can resist significantly the invasion and attack of introduced contaminants for sensor.
Claims (4)
1. the sensor of a good airproof performance, comprise housing, circuit board is fixedly connected with main body, between main shaft and main body, adopt contact seal bearing, it is characterized in that, on bearing and main body mating surface, arrange and deposit glue groove one, this is deposited and in glue groove one, is filled with flexible adhesive sealant one, make it to form an O-ring seal, the joint of this main body and housing is deposited the special-shaped annular groove two of glue, this is deposited and in glue annular groove two, is filled with flexible adhesive sealant two, form a special-shaped O-ring seal, You Cunjiao storehouse, housing outlet, be by housing and be welded with the relatively independent space forming between the printed board of cable, cable is deposited inside, glue storehouse and is run through from this, cable and the gap flexible adhesive sealant three of depositing between glue storehouse are filled up, deposit on two side bodies of glue storehouse and have multiple grooves, this groove indentation is arranged.
2. the sensor of a kind of good airproof performance according to claim 1, is characterized in that, has flexible nonmetal sealing-plug, with the axis hole interference fit of sensor main shaft outer end.
3. the sensor of a kind of good airproof performance according to claim 1 and 2, is characterized in that, the user installation removal hole clamping on gland bonnet and housing.
4. the sensor of a kind of good airproof performance according to claim 3, is characterized in that, gland bonnet and housing mating surface adopt the bent structure of ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230953.2U CN203893869U (en) | 2014-05-07 | 2014-05-07 | Sensor with excellent tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230953.2U CN203893869U (en) | 2014-05-07 | 2014-05-07 | Sensor with excellent tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893869U true CN203893869U (en) | 2014-10-22 |
Family
ID=51720262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420230953.2U Expired - Fee Related CN203893869U (en) | 2014-05-07 | 2014-05-07 | Sensor with excellent tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893869U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968870A (en) * | 2014-05-07 | 2014-08-06 | 长春禹衡光学有限公司 | Sensor and sealing method thereof |
| CN110702935A (en) * | 2019-10-17 | 2020-01-17 | 上海芯立电子科技有限公司 | High-sensitivity sensor |
| CN113517599A (en) * | 2021-04-29 | 2021-10-19 | 如皋市卓凡电子元件有限公司 | Self-sealing type automobile connector and using method thereof |
-
2014
- 2014-05-07 CN CN201420230953.2U patent/CN203893869U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968870A (en) * | 2014-05-07 | 2014-08-06 | 长春禹衡光学有限公司 | Sensor and sealing method thereof |
| CN103968870B (en) * | 2014-05-07 | 2017-07-18 | 长春禹衡光学有限公司 | A kind of sensor and its encapsulating method |
| CN110702935A (en) * | 2019-10-17 | 2020-01-17 | 上海芯立电子科技有限公司 | High-sensitivity sensor |
| CN113517599A (en) * | 2021-04-29 | 2021-10-19 | 如皋市卓凡电子元件有限公司 | Self-sealing type automobile connector and using method thereof |
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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: 20141022 Termination date: 20180507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |