CN201298052Y - Current sensor - Google Patents
Current sensor Download PDFInfo
- Publication number
- CN201298052Y CN201298052Y CNU2008201674035U CN200820167403U CN201298052Y CN 201298052 Y CN201298052 Y CN 201298052Y CN U2008201674035 U CNU2008201674035 U CN U2008201674035U CN 200820167403 U CN200820167403 U CN 200820167403U CN 201298052 Y CN201298052 Y CN 201298052Y
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- Prior art keywords
- iron core
- current sensor
- base plate
- framework
- outer cover
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- Expired - Lifetime
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Abstract
A current sensor comprises a base plate, a framework with an iron core in the framework, a busbar and a circuit board. The current sensor is characterized in that the iron core is fixed in the framework through injection molding. The utility model has the advantages that by adopting the integrative injection molding of the iron core and the framework, the assembly is simple and convenient, the steps of assembling magnetic components are eliminated, and the accuracy and the consistency of the positioning size of the iron core can be further improved, therefore, the qualification rate of the product is high. By adopting a detachable housing, the housing can be dismounted conveniently, so that a client can determine whether the housing is mounted or not according to the requirements, and the normal application of the sensor is not affected.
Description
Technical field
The utility model relates to current sensor, and it is mainly used in industrial circles such as frequency converter, ups power.
Background technology
Existing current sensor mainly is made up of base plate, iron core, skeleton, busbar and circuit part, and iron core is installed on the skeleton when sensor is assembled, and goes back stationary housings on the product base plate that has.During work, the tested electric current in the former limit busbar of flowing through, the magnetic field that is produced makes the linear hall element that is placed in the iron core air gap induce an electromotive force after assembling by the iron core of secondary magnetic circuit, and amplifies the back output voltage signal by the amplifier of secondary circuit.This signal and primary current signal are linearly proportional, so this sensor can accurately be measured the primary current signal really.
Because its iron core of existing current sensor need be manually installed on the skeleton, therefore assembling is complicated, and also wasting time and energy is not easy assembling, nonconforming performance and the quality that influences product in the time of also can be because of assembling.The current sensor that outer cover arranged and base plate can not take off for fixedlying connected, and the practical application of product, part client needs sensor to have outer cover to protect, and part client then wishes not have outer cover, and this more helps the sensor heat radiation.
The utility model content
Technical problem to be solved in the utility model is to overcome the above-mentioned deficiency of prior art and current sensor is provided, and makes that it is easy to assembly, quality good, meets client's different needs.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
Current sensor comprises base plate, iron core, skeleton, busbar and circuit board, it is characterized in that: described iron core is fixed in the skeleton by injection moulding.
Dismountable outer cover also is set on the above-mentioned base plate.
Compared with prior art, advantage of the present utility model is:
Adopt iron core and the integrated injection moulding of skeleton, assemble simple and conveniently, saved the magnet assembly number of assembling steps, and made the accuracy of iron core location dimension and consistance obtain further raising, so the product percent of pass height.
Because adopt dismountable outer cover, so the outer cover convenient disassembly, can determine whether install as required by the client, and not influence the normal use of sensor.
Description of drawings
Fig. 1 is the stereographic map of the utility model embodiment.
Fig. 2 is the explosive view of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, current sensor comprises base plate 1, iron core 4, skeleton 3, busbar 5, circuit board 2 and outer cover 6.
Above-mentioned iron core 4 is fixed together by injection moulding mode and skeleton 3.
Foregoing circuit plate 2 is inserted in the groove 31 of skeleton 3, and base plate 1 engages with projection 32 cooperations of skeleton 3 by the groove on it 12.
On the above-mentioned outer cover 6 hole 61 is set, cooperates with hook 11 on the base plate 1, outer cover 6 is fastened on the base plate 1 by hole 61.Can load onto or take off outer cover 6 from base plate 1 easily like this, select according to user's actual needs.
Claims (3)
1, current sensor comprises base plate, includes skeleton, busbar and the circuit board of iron core, and it is characterized in that: described iron core is fixed in the skeleton by injection moulding.
2, current sensor according to claim 1 is characterized in that: be fixed with dismountable outer cover on the described base plate.
3, current sensor according to claim 1 and 2 is characterized in that: the hole is set on the outer cover, cooperates with hook on the base plate, outer cover is fastened on the base plate by the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201674035U CN201298052Y (en) | 2008-11-05 | 2008-11-05 | Current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201674035U CN201298052Y (en) | 2008-11-05 | 2008-11-05 | Current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201298052Y true CN201298052Y (en) | 2009-08-26 |
Family
ID=41044034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201674035U Expired - Lifetime CN201298052Y (en) | 2008-11-05 | 2008-11-05 | Current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298052Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963631A (en) * | 2010-08-31 | 2011-02-02 | 株洲南车时代电气股份有限公司 | High-current direct current sensor and manufacturing method thereof |
| CN102411081A (en) * | 2011-11-29 | 2012-04-11 | 株洲南车时代电气股份有限公司 | Split heavy current repeater Hall current sensor |
| CN103201637A (en) * | 2010-12-27 | 2013-07-10 | 住友电装株式会社 | Current detecting device |
| CN103620424A (en) * | 2011-04-19 | 2014-03-05 | 施耐德电气It公司 | System of intelligent sensors in an electrical panelboard |
| CN105652068A (en) * | 2016-01-25 | 2016-06-08 | 宁波南车时代传感技术有限公司 | Primary coil skeleton |
-
2008
- 2008-11-05 CN CNU2008201674035U patent/CN201298052Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963631A (en) * | 2010-08-31 | 2011-02-02 | 株洲南车时代电气股份有限公司 | High-current direct current sensor and manufacturing method thereof |
| CN101963631B (en) * | 2010-08-31 | 2015-06-10 | 株洲南车时代电气股份有限公司 | High-current direct current sensor and manufacturing method thereof |
| CN103201637A (en) * | 2010-12-27 | 2013-07-10 | 住友电装株式会社 | Current detecting device |
| CN103620424A (en) * | 2011-04-19 | 2014-03-05 | 施耐德电气It公司 | System of intelligent sensors in an electrical panelboard |
| EP2699915B1 (en) * | 2011-04-19 | 2017-11-29 | Schneider Electric IT Corporation | System of intelligent sensors in an electrical panelboard |
| CN102411081A (en) * | 2011-11-29 | 2012-04-11 | 株洲南车时代电气股份有限公司 | Split heavy current repeater Hall current sensor |
| CN105652068A (en) * | 2016-01-25 | 2016-06-08 | 宁波南车时代传感技术有限公司 | Primary coil skeleton |
| CN105652068B (en) * | 2016-01-25 | 2018-08-31 | 宁波中车时代传感技术有限公司 | A kind of primary coil skeleton |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |
|
| CX01 | Expiry of patent term |