CN201796075U - Coil framework suit for current sensor - Google Patents
Coil framework suit for current sensor Download PDFInfo
- Publication number
- CN201796075U CN201796075U CN2010205386161U CN201020538616U CN201796075U CN 201796075 U CN201796075 U CN 201796075U CN 2010205386161 U CN2010205386161 U CN 2010205386161U CN 201020538616 U CN201020538616 U CN 201020538616U CN 201796075 U CN201796075 U CN 201796075U
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- coil
- toroidal core
- current sensor
- circuit board
- skeleton
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Abstract
The utility model discloses a coil framework suit for a current sensor, which comprises a toroidal core with an air gap, a coil and a main circuit board, wherein a leading-out end of the coil is connected with a contact pin on the main circuit board of the current sensor. The coil framework suit is characterized by further comprising a framework with an annular groove, and a small-sized printed circuit board with a magneto-sensitive element, wherein the framework is provided with a notch of which the size is matched with that of the small-sized printed circuit board; the center of the small-sized printed circuit board is superposed with the center of the air gap of the toroidal core, and is vertically connected with the main circuit board below the framework; the toroidal core is placed in the annular groove of the framework; an insulating material is sprayed on the surface of the toroidal core; and the coil is wound on the surface, sprayed with the insulating material, of the toroidal core. The coil framework suit is simple in structure, has high mounting consistency, and is reliable in connection.
Description
Technical field
The utility model relates to a kind of matching component of current sensor, particularly discloses a kind of current sensor coil rack external member.
Background technology
Current sensor is a kind of application electronic component very widely, and it is widely used in welding gear, frequency converter, and various power supplys etc. are with in the automatic control field of electric current as controlling object.
Current sensor has open loop usually, two kinds of structures of closed loop, and the closed loop current sensor generally is made up of by installing and fixing coil core assembly and main circuit board.The coil core assembly comprises magnetic core, coil, plastic sheath.Existing structure is earlier soft magnetic ribbon to be turned to annular, opens an air gap at magnetic core, puts plastic sheath, and coiling is formed the coil core assembly on plastic sheath then.The magnetic core air gap is aimed at the magneto sensor that connects with wiring board, magneto sensor is inserted in the air gap, assembly is directly installed or fixed in the circuit board with glue.
There are the following problems for said structure:
When one, inserting magneto sensor in the magnetic core air gap of coil core assembly, can't guarantee to install consistance, thereby influence the consistance of sensor performance.
Two, the coil core assembly is difficult for installing and fixing with the circuit printed panel, greatly reduces the reliability of current sensor mass production processes consistance and sensor.
Three, toroid winding easily and the components and parts friction of circuit board causes the magnet wire insulation pull-up to fall, thereby reduces sensor reliability greatly.
Summary of the invention
The purpose of this utility model is to overcome the existing defective that continues, a kind of current sensor coil rack external member is disclosed, toroidal core and plastics fixed mount are designed to one-piece construction, during product magneto sensor of the present utility model can well be returned in air gap, fixed magnetic core coil effect is very good, is connected also very convenient with contact pin on the circuit board.
The utility model is achieved in that a kind of current sensor coil rack external member, comprise the toroidal core, coil and the main circuit board that have air gap, the coil exit links to each other with contact pin on the current sensor main circuit board, it is characterized in that: also comprise skeleton that has ring groove and the miniature circuit printed board that has magneto sensor, described skeleton has the fluting with miniature circuit printed board size match, the center of the center of miniature circuit printed board and magnetic core air gap overlaps, and with vertical linking to each other of main circuit board of skeleton below; Toroidal core is put in the annular groove of skeleton, is coated with insulating material on the surface of toroidal core, and coil winding is on the toroidal core surface that is coated with insulating material.Two pins of the exit of described coil are weldingly fixed on the contact pin of main circuit board, and described contact pin is positioned at the both sides of the fluting symmetry of skeleton.Described toroidal core or form by the thread soft magnetic material of sub-thread, or form by the thread soft magnetic material of multiply.Described toroidal core is circular, and its axial cross section is shaped as circle, square or special-shaped.The annular groove of described skeleton and toroidal core size are complementary.
The beneficial effects of the utility model are:
1, the annular groove on the utility model skeleton can guarantee that toroid winding is fixedly mounted in the groove, guarantees that magneto sensor is positioned at the geometric position, center of magnetic core air gap all the time, has good installation consistance, thereby guarantees the consistency of performance of sensor.
2, the utility model simple structure is easy to produce, and two contact pins on the main circuit board can adopt the quick one-shot forming of injection molding technology.
3, the utility model is simple and reliable with being connected of current sensor main circuit board, and the exit of coil does not need directly to weld the location with circuit board, can be directly and the nearer two contact pins welding of off-line circle fixing, both connected reliably, it is fixing to be convenient to welding again.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, skeleton; 2, main circuit board; 3, contact pin; 4, miniature circuit printed board; 5, magneto sensor; 6, coil; 7, three combination contact pins.
Embodiment
With reference to the accompanying drawings, current sensor coil rack external member comprises the toroidal core that has air gap, the skeleton 1 that has ring groove, main circuit board 2 and coil 6.Have the miniature circuit printed board 4 of magneto sensor and 2 vertical the linking to each other of main circuit board of skeleton 1 below.Skeleton 1 has the fluting with miniature circuit printed board 4 size match, is used for fixing miniature circuit printed board 4.Skeleton 1 also is provided with the annular groove that is complementary with the toroidal core size, and toroidal core is positioned in the annular groove of skeleton 1, is coated with insulating material on the surface of toroidal core, and coil 6 is wound on the toroidal core surface that is coated with insulating material.Toroidal core or form by the thread soft magnetic material of sub-thread, or form by the thread soft magnetic material of multiply, air gap is left in the centre, the center of air gap and miniature circuit printed board 4 with magneto sensor 5(such as HW108B) center overlaps, stick with glue agent the coil 6 of annular is fixedly secured with magneto sensor 5, also can stick with glue agent fixed coil 6 and skeleton 1 simultaneously.The pin that monosymmetric contact pin 3 passes the 6 liang of exits of Kong Houyu coil that match set on the skeleton 1 on the main circuit board 2 welds fixing respectively.Because skeleton 1 is mutually insulateds with main circuit board 2, coil 6, thereby guaranteed that structurally coil 6 and main circuit board 2 can not rub, insulativity is very good.Toroidal core axial cross section of the present utility model is shaped as circle, square or special-shaped.Three combination contact pins 7 that two contact pins 3 of main circuit board and current sensor are connected with power lead adopt the quick one-shot forming of injection molding technologies.
Claims (5)
1. current sensor coil rack external member, comprise the toroidal core, coil and the main circuit board that have air gap, the coil exit links to each other with contact pin on the current sensor main circuit board, it is characterized in that: also comprise skeleton that has ring groove and the miniature circuit printed board that has magneto sensor, described skeleton has the fluting with miniature circuit printed board size match, the center of the center of miniature circuit printed board and magnetic core air gap overlaps, and with vertical linking to each other of main circuit board of skeleton below; Toroidal core is put in the annular groove of skeleton, is coated with insulating material on the surface of toroidal core, and coil winding is on the toroidal core surface that is coated with insulating material.
2. according to the described current sensor of claim 1 coil rack external member, it is characterized in that: two pins of the exit of described coil are weldingly fixed on the contact pin of main circuit board, and described contact pin is positioned at the both sides of the fluting symmetry of skeleton.
3. according to the described current sensor of claim 1 coil rack external member, it is characterized in that: described toroidal core or form by the thread soft magnetic material of sub-thread, or form by the thread soft magnetic material of multiply.
4. according to the described current sensor of claim 3 coil rack external member, it is characterized in that: described toroidal core is circular, and its axial cross section is shaped as circle, square or special-shaped.
5. according to claim 1 or 4 described current sensor coil rack external members, it is characterized in that: the annular groove of described skeleton and toroidal core size are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386161U CN201796075U (en) | 2010-09-21 | 2010-09-21 | Coil framework suit for current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386161U CN201796075U (en) | 2010-09-21 | 2010-09-21 | Coil framework suit for current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796075U true CN201796075U (en) | 2011-04-13 |
Family
ID=43850981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205386161U Expired - Fee Related CN201796075U (en) | 2010-09-21 | 2010-09-21 | Coil framework suit for current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201796075U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013106959A1 (en) * | 2012-01-19 | 2013-07-25 | Zou Gaozhi | High-precision whole pcb-mounted closed-loop axisymmetric magnetic circuit magnetic core coil component for hall current sensor |
| CN104931756A (en) * | 2015-05-25 | 2015-09-23 | 山东航天电子技术研究所 | Current sensor framework applicable to square face-to-face plugging magnetic cores |
| CN107452467A (en) * | 2016-06-01 | 2017-12-08 | 沃思电子埃索斯有限责任两合公司 | For the mounting kit of choke coil, and choke coil |
| CN108761266A (en) * | 2018-06-06 | 2018-11-06 | 浙江巨磁智能技术有限公司 | Microminiature patch type leakage current sensor and its assemble method |
| EP3496118A1 (en) | 2017-12-07 | 2019-06-12 | Koninklijke Philips N.V. | Air-core inductor assembly |
| CN110865222A (en) * | 2018-08-28 | 2020-03-06 | 比亚迪股份有限公司 | Current sensor |
| WO2020232723A1 (en) * | 2019-05-23 | 2020-11-26 | 威刚科技股份有限公司 | Current sensing module and current sensing structure thereof |
-
2010
- 2010-09-21 CN CN2010205386161U patent/CN201796075U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013106959A1 (en) * | 2012-01-19 | 2013-07-25 | Zou Gaozhi | High-precision whole pcb-mounted closed-loop axisymmetric magnetic circuit magnetic core coil component for hall current sensor |
| CN104520723A (en) * | 2012-01-19 | 2015-04-15 | 邹高芝 | High-precision whole PCB-mounted closed-loop axisymmetric magnetic circuit magnetic core coil component for hall current sensor |
| CN104931756A (en) * | 2015-05-25 | 2015-09-23 | 山东航天电子技术研究所 | Current sensor framework applicable to square face-to-face plugging magnetic cores |
| CN104931756B (en) * | 2015-05-25 | 2017-10-13 | 山东航天电子技术研究所 | It is a kind of to be applied to the square current sensor skeleton to plugging in magnetic core |
| CN107452467A (en) * | 2016-06-01 | 2017-12-08 | 沃思电子埃索斯有限责任两合公司 | For the mounting kit of choke coil, and choke coil |
| US10770217B2 (en) | 2016-06-01 | 2020-09-08 | Würth Elektronik eiSos Gmbh & Co. KG | Mounting kit for a throttle, and throttle |
| EP3496118A1 (en) | 2017-12-07 | 2019-06-12 | Koninklijke Philips N.V. | Air-core inductor assembly |
| WO2019110457A1 (en) | 2017-12-07 | 2019-06-13 | Koninklijke Philips N.V. | Air-core inductor assembly |
| JP7216730B2 (en) | 2017-12-07 | 2023-02-01 | コーニンクレッカ フィリップス エヌ ヴェ | air core inductor assembly |
| CN111466004A (en) * | 2017-12-07 | 2020-07-28 | 皇家飞利浦有限公司 | Air core inductor assembly |
| US11621124B2 (en) | 2017-12-07 | 2023-04-04 | Koninklijke Philips N.V. | Air-core inductor assembly |
| JP2021506121A (en) * | 2017-12-07 | 2021-02-18 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Air core inductor assembly |
| CN108761266B (en) * | 2018-06-06 | 2020-06-16 | 浙江巨磁智能技术有限公司 | Subminiature surface-mounted leakage current sensor and assembling method thereof |
| CN108761266A (en) * | 2018-06-06 | 2018-11-06 | 浙江巨磁智能技术有限公司 | Microminiature patch type leakage current sensor and its assemble method |
| CN110865222A (en) * | 2018-08-28 | 2020-03-06 | 比亚迪股份有限公司 | Current sensor |
| WO2020232723A1 (en) * | 2019-05-23 | 2020-11-26 | 威刚科技股份有限公司 | Current sensing module and current sensing structure 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: 20110413 Termination date: 20140921 |
|
| EXPY | Termination of patent right or utility model |