CN202159073U - Center-compressed piezoelectric acceleration sensor - Google Patents
Center-compressed piezoelectric acceleration sensor Download PDFInfo
- Publication number
- CN202159073U CN202159073U CN 201120238295 CN201120238295U CN202159073U CN 202159073 U CN202159073 U CN 202159073U CN 201120238295 CN201120238295 CN 201120238295 CN 201120238295 U CN201120238295 U CN 201120238295U CN 202159073 U CN202159073 U CN 202159073U
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- pedestal
- base
- newel
- screw thread
- annular groove
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Abstract
The utility model provides a center-compressed piezoelectric acceleration sensor, comprising a base, a central post, a piezoelectric element, a conductive piece, a mass block, an insulating sleeve, a spring, an outer cover and an M5 plug, wherein the base and the central post are connected through screw threads, the insulating sleeve, the piezoelectric element, the conductive piece and the mass block pass through the central post in order, then, are mounted on the base, press closely the base through the spring and the screw threads of the upper end of the central post, the outer cover and the base are connected through screw threads, and the M5 plug and the base are connected through the screw threads of the side surface of the base. In the utility model, the base of the central post is divided into the central post and the base thereby reducing the machining cost, and ensuring the sensor performance; and the base is provided with an annular groove thereon, thereby increasing the thickness of the base and reducing the influence on the mounting surface of the piezoelectric element and the conductive piece, caused by housing deformation because of external force, and the annular groove also has effects of reducing the sensor mass and providing convenience for wiring.
Description
Technical field
The utility model belongs to the piezoelectric acceleration sensor field, is specifically related to a kind of center compression piezoelectric acceleration sensor.
Background technology
The newel and the pedestal of sensor are as a whole in the center compression piezoelectric acceleration sensor in the prior art; This construction machine processing cost is high, and difficulty of processing is big, is not easy in grinding machine processing and milled processed; Cause the final performance of sensor that machining is had bigger dependence; Sensor base is solid one-piece construction simultaneously, makes sensor relatively more responsive to the influence of surrounding environment, and particularly the performance of sensor will be had a strong impact on when shell is stressed.
Summary of the invention
For high, relatively more responsive to the environmental impact deficiency of manufacturing process difficulty, cost that overcomes center compression acceleration transducer newel and sensor base in the prior art, the utility model provides a kind of center compression piezoelectric acceleration sensor.
This novel sensor comprises M5 socket, pedestal, conducting strip, piezoelectric element, mass, newel, insulation sleeve, spring, enclosing cover; Wherein, said pedestal is provided with annular groove, screwed hole of centre, aperture, threaded hole, is filled with silicon rubber in the annular groove.The newel two ends are respectively arranged with screw thread I and screw thread II, also are provided with relief groove between screw thread I and the screw thread II.Said newel is arranged in the screwed hole of centre of pedestal, and is fixedly connected through the screw thread II between the pedestal; Insulation sleeve, piezoelectric element, conducting strip, mass pass newel successively and are installed on the pedestal, and spring is fixedly connected with the screw thread I of newel upper end.The M5 socket is connected with pedestal through the threaded hole of pedestal side, and the signal wire of M5 socket passes the aperture of base bottom, annular groove is fixedly connected with conducting strip.Be fixedly connected through screw thread between enclosing cover and the pedestal.
The screwed hole of centre aperture coupling of the diameter of said newel and pedestal.
Between the pedestal of the utility model and the newel through being threaded; Piezoelectric element, conducting strip and mass pass newel successively and are installed on the pedestal, and through tightening between the screw thread of spring and newel upper end, thereby it is pressed on the pedestal; Form a spring-mass-sensitive assembly; Install through screw thread between enclosing cover and the pedestal, be connected between the screw thread of M5 socket through the pedestal side and the pedestal, be used for drawing of sensor signal.
The core of the utility model is that the pedestal that has newel with original integral body is divided into newel and pedestal.The installed surface of sensing assembly is processed easily like this, has reduced processing capacity, has saved material, has reduced cost, has improved properties of product.Adopt this structure to add the part surfaceness and do not reach designing requirement,, still can carry out milled processed, thereby reduced the degree of dependence of sensor machining to it even if got into assembling stage for indivedual machines.
The utility model has increased the thickness of original pedestal; Thereby reduce the influence of environment to the pedestal strain; Also on pedestal, designed an annular groove simultaneously; Further reduce the influence of environment to sensor, particularly reduced because of the shell stress deformation makes the stressed influence of piezoelectric element installed surface, this ring groove also has the effect that reduces sensor mass and make things convenient for cabling in addition.
The advantage of the center compression piezoelectric acceleration sensor of the utility model is: (1) is divided into newel and pedestal two parts with the pedestal that original integral body has newel, thereby reduces the machining cost of sensor, also makes the performance of sensor be able to guarantee; (2) outside adding the influence of strong back with the strain of reduction pedestal; Designed an annular groove and come further to lower the influence of environment sensor; Particularly reduced because of the shell stress deformation makes the stressed influence of sensing assembly installed surface, ring groove also has the effect that reduces sensor mass and make things convenient for cabling simultaneously.
Description of drawings
Fig. 1 is the structure cut-open view of the center compression piezoelectric acceleration sensor of the utility model.
Fig. 2 is the pedestal cut-open view in the utility model.
Fig. 3 is the pedestal vertical view in the utility model.
Fig. 4 is the newel structural representation in the utility model.
Among the figure, 1.M5 socket 2. pedestals 3. conducting strips 4. piezoelectric elements 5. masses 6. newels 7. insulation sleeves 8. springs 9. enclosing covers 10. silicon rubber 21. annular grooves 22. screwed hole of centre 23. bottom apertures 24. threaded holes 61. screw thread I 62. screw thread II 63. relief grooves.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structure cut-open view of the center compression piezoelectric acceleration sensor of the utility model, and Fig. 2 is the pedestal cut-open view in the utility model, and Fig. 3 is the pedestal vertical view in the utility model, and Fig. 4 is the newel structural representation in the utility model.In Fig. 1～Fig. 4, the center compression piezoelectric acceleration sensor of the utility model comprises M5 socket 1, pedestal 2, conducting strip 3, piezoelectric element 4, mass 5 newels 6, insulation sleeve 7, spring 8, enclosing cover 9; Wherein, said pedestal 2 is provided with annular groove 21, screwed hole of centre 22, bottom aperture 23, threaded hole 24, is filled with silicon rubber 10 in the annular groove 21; Newel 6 two ends are respectively arranged with screw thread I 61 and screw thread II 62, also are provided with relief groove 63 between screw thread I 61 and the screw thread II 62; Said newel 6 is arranged in the screwed hole of centre 22 of pedestal 2, and is fixedly connected through screw thread II 62 between the pedestal; Insulation sleeve 7, piezoelectric element 4, conducting strip 3, mass 5 pass newel 6 successively and are installed on the pedestal 2, and spring 8 is fixedly connected with the screw thread I 61 of newel 6 upper ends; M5 socket 1 is connected with pedestal 2 through the threaded hole 24 of pedestal 2 sides, and the signal wire of M5 socket 1 passes pedestal 2 bottom apertures 23, annular groove 21 is fixedly connected with conducting strip 3; Be fixedly connected through screw thread between enclosing cover 9 and the pedestal 2.
The screwed hole of centre 22 apertures coupling of the diameter of said newel 6 and pedestal 2.
The signal wire of the M5 socket 1 in the utility model passes pedestal 2 bottom apertures 23 and is welded on the pad of conducting strip 3 with annular groove 21, is used for drawing of sensor signal, installs through screw thread between enclosing cover 9 and the pedestal 2.
In Fig. 2 and Fig. 3, pedestal 2 is provided with annular groove 21 to reduce the influence of environment to sensor, has particularly reduced because of the shell stress deformation makes the stressed influence of piezoelectric element installed surface, and annular groove 21 reduces sensor mass and the effect that makes things convenient for cabling in addition; Filled silicon rubbers 10 in the annular groove 21, silicon rubber 10 are used for sealing and fixing M5 socket 1 signal wire; Piezoelectric element 4 can reach high surface quality through the mode of grinding with the surface of contact of pedestal 2, thereby improves the performance of sensor, cuts down finished cost.
In Fig. 4, the location that the relief groove 63 that is provided with on the newel 6 is used to realize newel 6.
Claims (2)
1. center compression piezoelectric acceleration sensor, it is characterized in that: described sensor comprises M5 socket (1), pedestal (2), conducting strip (3), piezoelectric element (4), mass (5), newel (6), insulation sleeve (7), spring (8), enclosing cover (9); Wherein, said pedestal (2) is provided with annular groove (21), screwed hole of centre (22), bottom aperture (23), threaded hole (24), is filled with silicon rubber (10) in the annular groove (21); Newel (6) two ends are respectively arranged with screw thread I (61) and screw thread II (62), also are provided with relief groove (63) between screw thread I (61) and the screw thread II (62); Said newel (6) is arranged in the screwed hole of centre (22) of pedestal (2), and is fixedly connected through screw thread II (62) between the pedestal; Insulation sleeve (7), piezoelectric element (4), conducting strip (3), mass (5) pass newel (6) successively and are installed on the pedestal (2), and spring (8) is fixedly connected with the screw thread I (61) of newel (6) upper end; M5 socket (1) is connected with pedestal (2) through the threaded hole (24) of pedestal (2) side, and the signal wire of M5 socket (1) passes pedestal (2) bottom aperture (23), annular groove (21) is fixedly connected with conducting strip (3); Be fixedly connected through screw thread between enclosing cover (9) and the pedestal (2).
2. a kind of center according to claim 1 compression piezoelectric acceleration sensor is characterized in that: screwed hole of centre (22) the aperture coupling of the diameter of said newel (6) and pedestal (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120238295 CN202159073U (en) | 2011-07-08 | 2011-07-08 | Center-compressed piezoelectric acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120238295 CN202159073U (en) | 2011-07-08 | 2011-07-08 | Center-compressed piezoelectric acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202159073U true CN202159073U (en) | 2012-03-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120238295 Expired - Fee Related CN202159073U (en) | 2011-07-08 | 2011-07-08 | Center-compressed piezoelectric acceleration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202159073U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102160A (en) * | 2017-05-27 | 2017-08-29 | 天府认证有限公司 | The acceleration transducer protected with thermoelectricity |
| CN109212262A (en) * | 2018-10-17 | 2019-01-15 | 山东大学 | A kind of high-temperature piezoelectric acceleration transducer based on lateral vibration mode |
| WO2019052172A1 (en) * | 2017-09-15 | 2019-03-21 | 西人马（厦门）科技有限公司 | Charge output element and annular shear piezoelectric acceleration sensor |
| CN113503958A (en) * | 2021-07-08 | 2021-10-15 | 国网河北省电力有限公司电力科学研究院 | Broadband vibration signal sensor and signal processing device thereof |
| CN113566867A (en) * | 2021-07-27 | 2021-10-29 | 中国工程物理研究院总体工程研究所 | Sensor mounting process for spiral pipe bundle assembly test body |
-
2011
- 2011-07-08 CN CN 201120238295 patent/CN202159073U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102160A (en) * | 2017-05-27 | 2017-08-29 | 天府认证有限公司 | The acceleration transducer protected with thermoelectricity |
| WO2019052172A1 (en) * | 2017-09-15 | 2019-03-21 | 西人马（厦门）科技有限公司 | Charge output element and annular shear piezoelectric acceleration sensor |
| CN109212262A (en) * | 2018-10-17 | 2019-01-15 | 山东大学 | A kind of high-temperature piezoelectric acceleration transducer based on lateral vibration mode |
| CN113503958A (en) * | 2021-07-08 | 2021-10-15 | 国网河北省电力有限公司电力科学研究院 | Broadband vibration signal sensor and signal processing device thereof |
| CN113566867A (en) * | 2021-07-27 | 2021-10-29 | 中国工程物理研究院总体工程研究所 | Sensor mounting process for spiral pipe bundle assembly test body |
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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: 20120307 Termination date: 20160708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |