CN203536170U - Magnetic core for magnetic coupling of mobile phone wireless charger - Google Patents
Magnetic core for magnetic coupling of mobile phone wireless charger Download PDFInfo
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- CN203536170U CN203536170U CN201320582129.9U CN201320582129U CN203536170U CN 203536170 U CN203536170 U CN 203536170U CN 201320582129 U CN201320582129 U CN 201320582129U CN 203536170 U CN203536170 U CN 203536170U
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Abstract
The utility model relates to a magnetic core for magnetic coupling of a mobile phone wireless charger. A first groove (2) in a certain shape such as a circle and a ring is formed in the surface of a magnetic core body (1), meanwhile, a second groove (3) in a certain shape such as a rectangle and a semicircle is formed in the surface of the magnetic core body (1), when the magnetic core is installed, a coil (4) is placed into the grooves of the magnetic core and spliced with the grooves, the magnetic core body (1) and the coil (4) are made to be located in the same horizontal plane, the staring end part of the coil (4) is led to the exterior of the magnetic core body (1) though the second groove (3) and a third groove (5), and the tail end part of the coil (4) is led into the exterior of the magnetic core body (1) through the third groove (5), and the magnetic core body (1) is made of MnZn power ferrite cores.
Description
Technical field
The present invention is mainly used in electronic information field, for the mobile phone wireless charger of just applying.
Background technology
At present, the research and development of mobile phone wireless charger and application are pushed forward comprehensively, and mobile phone wireless charger cardinal principle is by magnetic coupling, and the primary coil by energy from charger be coupled to the secondary coil of mobile phone terminal, thereby generation current is to charging mobile phone battery.Wherein,, there is an effigurate FERRITE CORE body of tool at the back side of primary coil and secondary coil, and the effect of this FERRITE CORE body has two, and the one, as flux path, identical with the magnetic core effect in transformer; The 2nd, as shielding device, prevent that the magnetic line of force is diffused into other space.Space between two magnetic core bodies is exactly the air gap in magnetic loop.Known according to transformer principle, the distance of this air gap is less, and energy is delivered to the loss of secondary coil from primary coil will be less, and the charge efficiency of charger will be higher.Because the current size of mobile phone wireless charger air gap equals the thickness sum that two coil thickness add charger case thickness and cell phone rear cover, distance is larger, so the efficiency of current wireless charger is not high, best also can only reach 70%.
Utility model content
For above-mentioned deficiency, it is a kind of for the magnetic-coupled magnetic core of mobile phone wireless charger that the utility model provides.Described magnetic core body (1) surface has the first groove (2), the second groove (3), the 3rd groove (5), during installation, coil (4) is put in the first groove (2), coil (4) initiating terminal is partly introduced into magnetic core body (1) outside by the second groove (3), the 3rd groove (5), and coil (4) end portion is introduced into magnetic core body (1) outside by the 3rd groove (5).
Preferably, described magnetic core body (1) is shaped as square, circular, oval, rhombus, trapezoidal, irregular polygon; Described the first groove (2) is circular, annular, square; Described the second groove (3) is rectangle, semicircle; The 3rd described groove (5) is rectangle, semicircle.
Preferably, described magnetic core body (1) is shaped as square, circular; Described the first groove (2) is shaped as annular; Described the second groove (3) is rectangle, and the 3rd described groove (5) is rectangle.
Preferably, described the first groove (2), the second groove (3) degree of depth and coil (4) consistency of thickness, the degree of depth of the 3rd groove (5) is the twice of coil (4) thickness.
Preferably, described coil (4) is conductor, is shaped as rectangle, circle.
Preferably, described magnetic core body (1) is MnZn power ferrite magnetic core.
According to described in the utility model, a kind ofly for the magnetic-coupled magnetic core of mobile phone wireless charger, bring following beneficial effect:
One, reduce the size of the air gap between wireless charger two magnetic core bodies, it is the thickness sum that air gap distance equals outer casing thickness and the mobile phone battery cover of charger, compare with traditional wireless charger, air gap has reduced, thereby improved the transmission efficiency of energy, reduce energy loss, improve charge efficiency, guaranteed charging rate;
Two, adopt MnZn power ferrite magnetic core, owing to thering is low-loss characteristic, therefore more can improve charge efficiency, avoid the loss of energy, improve charging rate.
Accompanying drawing explanation
Fig. 1, Fig. 2 are the utility model magnetic core body and coil separate structure schematic diagram.
Fig. 3 is the schematic diagram that the utility model magnetic core body is connected with coil
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, to make those skilled in the art can implement according to this with reference to specification word and accompanying drawing.Fig. 1, Fig. 2 are preferred structure schematic diagram of the present utility model.As shown in Figure 1, according to the effigurate magnetic core body of tool (1) that preferred embodiment comprises of the present utility model, the external shape of magnetic core body (1) is arbitrary shape, described magnetic core body (1) surface has circle, annular, square the first groove (2), rectangle or semicircle the second groove (3), rectangle or semicircular the 3rd groove (5), during installation, coil (4) is put in the first groove (2), coil (4) initiating terminal is partly by the second groove (3), the 3rd groove (5) is introduced into magnetic core body (1) outside, coil (4) end portion is introduced into magnetic core body (1) outside by the 3rd groove (5).The degree of depth of the first groove (2) and coil (4) consistency of thickness make coil (4) and magnetic core body (1) on a horizontal plane, form structure as shown in Figure 3, like this, the distance of air gap just equals the thickness sum of outer casing thickness and the mobile phone battery cover of charger, compare with traditional wireless charger, air gap has reduced.When in use, because mobile phone wireless charger mainly passes through magnetic coupling, energy is coupled to the secondary coil of mobile phone terminal from the primary coil of charger, because the air gap between two magnetic core bodies reduces, thereby improve the transmission efficiency of energy, shortened the charging interval, avoid the loss of energy, magnetic core body material selection MnZn power ferrite magnetic core, because this magnetic core body has low-loss characteristic, has therefore guaranteed the transmission efficiency of energy more simultaneously.
Claims (6)
1. for the magnetic-coupled magnetic core of mobile phone wireless charger, it is characterized in that described a kind ofly comprise for the magnetic-coupled magnetic core of mobile phone wireless charger:
Magnetic core body (1), described magnetic core body (1) surface has the first groove (2), the second groove (3), the 3rd groove (5);
Coil (4), during installation, coil (4) is put in the first groove (2), coil (4) initiating terminal is partly introduced into magnetic core body (1) outside by the second groove (3), the 3rd groove (5), and coil (4) end portion is introduced into magnetic core body (1) outside by the 3rd groove (5).
2. as claimed in claim 1 a kind of for the magnetic-coupled magnetic core of mobile phone wireless charger, it is characterized in that described magnetic core body (1) is shaped as square, circular, oval, rhombus, trapezoidal, irregular polygon; Described the first groove (2) is circular, annular, square; Described the second groove (3) is rectangle, semicircle; The 3rd described groove (5) is rectangle, semicircle.
3. as claimed in claim 2 a kind of for the magnetic-coupled magnetic core of mobile phone wireless charger, it is characterized in that described core shapes is square, circular; Described the first groove (2) is shaped as annular; Described the second groove (3) is rectangle, and the 3rd described groove (5) is rectangle.
4. as claimed in claim 1 a kind of for the magnetic-coupled magnetic core of mobile phone wireless charger, it is characterized in that described the first groove (2), the second groove (3) degree of depth and coil (4) consistency of thickness, the degree of depth of the 3rd groove (5) is the twice of coil (4) thickness.
5. as claimed in claim 1 a kind of for the magnetic-coupled magnetic core of mobile phone wireless charger, it is characterized in that described coil (4) is conductor, be shaped as rectangle, circle.
6. a kind of for the magnetic-coupled magnetic core of mobile phone wireless charger as described in one of claim 1-4, is characterized in that described magnetic core is MnZn power ferrite magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582129.9U CN203536170U (en) | 2013-09-22 | 2013-09-22 | Magnetic core for magnetic coupling of mobile phone wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582129.9U CN203536170U (en) | 2013-09-22 | 2013-09-22 | Magnetic core for magnetic coupling of mobile phone wireless charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536170U true CN203536170U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320582129.9U Expired - Fee Related CN203536170U (en) | 2013-09-22 | 2013-09-22 | Magnetic core for magnetic coupling of mobile phone wireless charger |
Country Status (1)
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| CN (1) | CN203536170U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086116A (en) * | 2016-02-16 | 2017-08-22 | Tdk株式会社 | Coil device for non-contact power reception and magnetic core for non-contact power reception |
| CN110912216A (en) * | 2018-09-11 | 2020-03-24 | 苹果公司 | Induction charging module |
| CN111978079A (en) * | 2020-07-21 | 2020-11-24 | 横店集团东磁股份有限公司 | Wireless charging magnetic core for smart watch and preparation method thereof |
| CN112420358A (en) * | 2020-11-04 | 2021-02-26 | 横店集团东磁股份有限公司 | Magnetic core and manufacturing method thereof |
| CN113871155A (en) * | 2021-09-18 | 2021-12-31 | 横店集团东磁股份有限公司 | Transmitting end magnetic core and preparation method thereof |
-
2013
- 2013-09-22 CN CN201320582129.9U patent/CN203536170U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086116A (en) * | 2016-02-16 | 2017-08-22 | Tdk株式会社 | Coil device for non-contact power reception and magnetic core for non-contact power reception |
| CN110912216A (en) * | 2018-09-11 | 2020-03-24 | 苹果公司 | Induction charging module |
| CN111978079A (en) * | 2020-07-21 | 2020-11-24 | 横店集团东磁股份有限公司 | Wireless charging magnetic core for smart watch and preparation method thereof |
| CN111978079B (en) * | 2020-07-21 | 2022-02-18 | 横店集团东磁股份有限公司 | Wireless charging magnetic core for smart watch and preparation method thereof |
| CN112420358A (en) * | 2020-11-04 | 2021-02-26 | 横店集团东磁股份有限公司 | Magnetic core and manufacturing method thereof |
| CN113871155A (en) * | 2021-09-18 | 2021-12-31 | 横店集团东磁股份有限公司 | Transmitting end magnetic core and preparation method thereof |
| WO2023040533A1 (en) * | 2021-09-18 | 2023-03-23 | 横店集团东磁股份有限公司 | Transmitting end magnetic core and preparation method therefor |
| CN113871155B (en) * | 2021-09-18 | 2023-07-21 | 横店集团东磁股份有限公司 | Transmitting end magnetic core and preparation 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: 20140409 Termination date: 20170922 |
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| CF01 | Termination of patent right due to non-payment of annual fee |