CN201302455Y - Package structure of eddy current transducer - Google Patents
Package structure of eddy current transducer Download PDFInfo
- Publication number
- CN201302455Y CN201302455Y CNU2008202039627U CN200820203962U CN201302455Y CN 201302455 Y CN201302455 Y CN 201302455Y CN U2008202039627 U CNU2008202039627 U CN U2008202039627U CN 200820203962 U CN200820203962 U CN 200820203962U CN 201302455 Y CN201302455 Y CN 201302455Y
- Authority
- CN
- China
- Prior art keywords
- frequency unit
- high frequency
- shell
- wiring board
- inductive coil
- 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
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a package structure of an eddy current transducer, which comprises a shell, a shielding component, an induction coil frame and a high-frequency unit circuit board, wherein the high-frequency unit circuit board is provided with an oscillator and a rectifying circuit and a winding is wound around the induction coil frame to form an induction coil. The package structure of an eddy current transducer is characterized in that the shielding component is laid on the outer surface of the shell, the induction coil frame and the high-frequency unit circuit board are fixed at a mounting end face of the shell via the shielding component, the plane of the high-frequency unit circuit board is parallel to the axis of the induction coil, the shell is insulated, clearances among the shielding component, the induction coil and the high-frequency circuit board are provided with binders. The induction coil of the package structure can be closely combined with the oscillator and the rectifying circuit, and transmission distances of signals can be shortened furthest, thereby increasing stability and consistency of the eddy current transducer.
Description
Technical field
The utility model relates to a kind of encapsulating structure of current vortex sensor.
Background technology
Existing current vortex sensor generally is that inductive coil is packaged into inductive probe separately, and signal processing circuits such as oscillator, rectification circuit, temperature correction circuit, linear correction circuit are encapsulated in another wiring board.Adopt the current vortex sensor of this encapsulating structure, combine undertighten between the high frequency unit of these two sensitivities of oscillator and rectification circuit and the inductive coil, its line makes the transmission of signal be subjected to the influence of technology and material than length, thereby the stability of sensor and consistance are limited to.
The utility model content
The technical problems to be solved in the utility model is: a kind of encapsulating structure of current vortex sensor is provided, shield member, inductive coil and signal processing circuit integral type is encapsulated in the insulation crust, thus the stability and the consistance of raising sensor.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: the encapsulating structure of current vortex sensor, comprise shell, shield member, inductive coil skeleton, be provided with the high frequency unit wiring board of oscillator and rectification circuit, wherein winding wire is wound on the inductive coil skeleton and forms inductive coil, it is characterized in that: described shield member is laid on the inside surface of shell; Inductive coil skeleton and high frequency unit wiring board are fixed on through shield member on the installation end face of shell, wherein the axis parallel of the plane of high frequency unit wiring board and inductive coil; Described shell for the insulation, and and shield member, inductive coil and high frequency unit wiring board between the gap in be provided with cementing agent.
Described inductive coil skeleton is provided with the fixedly groove of high frequency unit wiring board.The both sides of high frequency unit wiring board are plugged on the groove, make fixing more firm that the high frequency unit wiring board hangs down.Inductive coil and high frequency unit wiring board preferred vertical are arranged on the installation end face of shell, thereby reduce the influence to magnetic field.
The installation end face part of described shell is provided with inwardly protruded boss, fixed inductor skeleton or high frequency unit wiring board on the boss.Preferably boss is arranged on the middle part that end face is installed, fixing high frequency unit wiring board on the boss.Boss helps installing end face finalizes the design with combining more of cementing agent, not yielding.
The utility model is owing to adopted said structure, and inductive coil and oscillator, rectification circuit can closely combine, and the transmission range of signal has obtained shortening to greatest extent, has improved the stability and the consistance of sensor.And shell for the insulation, shield member can be layed on the inwall of shell, covers inductive coil and wiring board, thereby the external interference signal shielding is fallen.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Encapsulating structure as shown in Figure 1, comprise shell 1, shield member 4, inductive coil skeleton, be provided with the high frequency unit wiring board 21 of oscillator and rectification circuit, the main circuit board 22 that is electrically connected with high frequency unit wiring board 21, wherein winding wire is wound on and forms inductive coil 3 on the inductive coil skeleton, and shell 1 is cylindrical.Shield member 4 is laid on the inside surface of shell, just on the inwall.The inductive coil skeleton is provided with the fixedly groove 31 of high frequency unit wiring board 21.The both sides of high frequency unit wiring board 21 are plugged on the groove 31, the axis parallel of its plane and inductive coil 3, and be vertically fixed on the installation end face 11 of shell 1 through shield member 4 with inductive coil 3.Be provided with cementing agent in the gap between shell 1 and shield member 4, inductive coil 3 and the high frequency unit wiring board 21, and cementing agent preferred resin in the present embodiment.
In order to optimize the filling bond effect of resin, installation end face 11 parts of shell 1 are provided with inwardly protruded boss 12, fixed inductor skeleton or high frequency unit wiring board on the boss 12.Boss 12 preferably is arranged on the middle part that end face 11 is installed, and high frequency unit wiring board 21 is fixed on the boss, the inductive coil skeleton is arranged on the periphery of boss.So, the bond area of inductive coil and resin has enlarged, and cohesive force has obtained reinforcement; End face 11 is also bonded must more firmly can not to be out of shape thereby install; And the both sides of high frequency unit wiring board 21 are plugged in the groove 31, and the encapsulation fixed effect in shell 1 is also good.
One end of the side 14 of shell is provided with breach 15, is used to install the encapsulation end face of shell.The encapsulation end face is encapsulated in the inside of shell with main circuit board 22, high frequency unit wiring board 21, inductive coil 3 and shield member 4, does not just illustrate in the drawings.The outer wall of end face 11 is installed, also is provided with the recess 13 that caves inward, can be used for pasting the labeling of relevant sensor, as trade mark etc.
Claims (8)
1. the encapsulating structure of current vortex sensor, comprise shell, shield member, inductive coil skeleton, be provided with the high frequency unit wiring board of oscillator and rectification circuit, wherein winding wire is wound on the inductive coil skeleton and forms inductive coil, it is characterized in that: described shield member is laid on the inside surface of shell; Inductive coil skeleton and high frequency unit wiring board are fixed on through shield member on the installation end face of shell, wherein the axis parallel of the plane of high frequency unit wiring board and inductive coil; Described shell for the insulation, and and shield member, inductive coil and high frequency unit wiring board between the gap in be provided with cementing agent.
2. the encapsulating structure of current vortex sensor according to claim 1, it is characterized in that: described inductive coil skeleton is provided with the fixedly groove of high frequency unit wiring board.
3. the encapsulating structure of current vortex sensor according to claim 1, it is characterized in that: described inductive coil skeleton and high frequency unit wiring board are vertically fixed on the installation end face of shell.
4. the encapsulating structure of current vortex sensor according to claim 1 and 2, it is characterized in that: the installation end face part of described shell is provided with inwardly protruded boss, fixed inductor skeleton or high frequency unit wiring board on the boss.
5. the encapsulating structure of current vortex sensor according to claim 4 is characterized in that: described boss is arranged on the middle part that end face is installed, fixing high frequency unit wiring board on the boss.
6. according to the encapsulating structure of claim 1 or 2 or 3 or 5 described current vortex sensors, it is characterized in that: further comprise the main circuit board that is electrically connected with high frequency unit; This main circuit board places the top of inductive coil skeleton and high frequency unit wiring board, and its plane is parallel with the installation end face of shell.
7. the encapsulating structure of current vortex sensor according to claim 6, it is characterized in that: described main circuit board is provided with the hole.
8. the encapsulating structure of current vortex sensor according to claim 1, it is characterized in that: described cementing agent is a resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202039627U CN201302455Y (en) | 2008-11-25 | 2008-11-25 | Package structure of eddy current transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202039627U CN201302455Y (en) | 2008-11-25 | 2008-11-25 | Package structure of eddy current transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302455Y true CN201302455Y (en) | 2009-09-02 |
Family
ID=41086081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202039627U Expired - Fee Related CN201302455Y (en) | 2008-11-25 | 2008-11-25 | Package structure of eddy current transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201302455Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830797A (en) * | 2017-11-18 | 2018-03-23 | 中机生产力促进中心 | Wide range current vortex sensor for Deformation inspection and preparation method thereof |
| CN110823436A (en) * | 2019-10-08 | 2020-02-21 | 珠海格力电器股份有限公司 | Six-dimensional force detection method based on eddy current effect, sensor and intelligent equipment |
| CN110987244A (en) * | 2019-10-08 | 2020-04-10 | 珠海格力电器股份有限公司 | Flat disc type six-dimensional force sensor based on eddy current effect, detection method and intelligent equipment |
| US20210310829A1 (en) * | 2020-04-02 | 2021-10-07 | Lg Electronics Inc. | Displacement sensor |
-
2008
- 2008-11-25 CN CNU2008202039627U patent/CN201302455Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830797A (en) * | 2017-11-18 | 2018-03-23 | 中机生产力促进中心 | Wide range current vortex sensor for Deformation inspection and preparation method thereof |
| CN107830797B (en) * | 2017-11-18 | 2023-10-27 | 中机生产力促进中心 | Large-range eddy current sensor for pipeline deformation detection and manufacturing method thereof |
| CN110823436A (en) * | 2019-10-08 | 2020-02-21 | 珠海格力电器股份有限公司 | Six-dimensional force detection method based on eddy current effect, sensor and intelligent equipment |
| CN110987244A (en) * | 2019-10-08 | 2020-04-10 | 珠海格力电器股份有限公司 | Flat disc type six-dimensional force sensor based on eddy current effect, detection method and intelligent equipment |
| WO2021068663A1 (en) * | 2019-10-08 | 2021-04-15 | 珠海格力电器股份有限公司 | Flat disc six-dimensional force sensor based on eddy current effect, detection method, and smart device |
| US20210310829A1 (en) * | 2020-04-02 | 2021-10-07 | Lg Electronics Inc. | Displacement sensor |
| CN113494880A (en) * | 2020-04-02 | 2021-10-12 | Lg电子株式会社 | Displacement sensor |
| US11920959B2 (en) | 2020-04-02 | 2024-03-05 | Lg Electronics Inc. | Displacement sensor having a coil structure, a shield member and a housing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201302455Y (en) | Package structure of eddy current transducer | |
| CN203660852U (en) | Stator assembly, plastic-packaging housing thereof, and plastic-packaged motor with stator assembly | |
| CN204558232U (en) | Current transformer | |
| CN202133700U (en) | Current sensor of motor controller | |
| CN202796373U (en) | Magnetic conductive adhesive plastic casing packaging inductance | |
| CN201435302Y (en) | Current mutual inductor for voltage output | |
| CN101697314A (en) | Current transformer | |
| CN109285658B (en) | Mutual inductor and leakage circuit breaker | |
| CN101656435B (en) | Power taking method for large-current high-voltage transmission bus | |
| CN215573353U (en) | Embedded vibration sensor structure assembly for monitoring vibration of distribution transformer | |
| CN202796415U (en) | Straight-through current transformer | |
| CN108878208A (en) | A kind of Novel intelligent vacuum circuit breaker | |
| CN209118867U (en) | A kind of stick inductance | |
| CN202679238U (en) | Power supply module | |
| CN214099359U (en) | Sealed inductor of reinforcement installation | |
| CN202870144U (en) | Current measuring device for breaker or switch cabinet | |
| CN208189757U (en) | It is wirelessly transferred coil block, pot cover and cooker | |
| CN207282280U (en) | The improved prepackage stitch bottom plate suitable for thin line inductors | |
| CN207280622U (en) | A kind of temperature sensor for magnetic suspension centrifuge | |
| CN215894661U (en) | Magnetoelectric sensor | |
| CN111430095A (en) | Configurable chip common-mode inductor and manufacturing method thereof | |
| CN207908058U (en) | A kind of infrared inductor | |
| CN206672760U (en) | A kind of wave filter | |
| CN103166452B (en) | A kind of High-reliability power source | |
| CN208767096U (en) | A kind of vertical sealed fixed inductance |
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: 20090902 Termination date: 20171125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |