CN109516815A - A kind of wireless charging magnetic sheet soft magnetic ferrite - Google Patents
A kind of wireless charging magnetic sheet soft magnetic ferrite Download PDFInfo
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Abstract
The invention discloses a kind of wireless charging magnetic sheet soft magnetic ferrite, including principal component and doping component, the principal component includes Fe2O3,MnO,ZnO；The doping component includes SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5.Wireless charging magnetic sheet soft magnetic ferrite of the invention, high magnetic permeability, low-loss, temperature stability are high, and then can effectively improve the charge efficiency of wireless charging magnetic sheet.
Description
Technical field
The present invention relates to technical field of magnetic materials, and in particular to a kind of wireless charging magnetic sheet soft magnetic ferrite.
Background technique
In recent years with the development trend that mobile phone screen is increasing, performance is higher and higher, function is more and more diversified, to electricity
The consumption of pond energy is also multiplied.However 3C Product lithium ion battery energy density as used in mobile phone, tablet computer etc. increases
Length is very limited, there is data to suggest that, between nearly 10 years, the growth of lithium battery capacity density is limited, annual to increase only 5-10%.And with
Energy density increasingly approach theoretical value, the higher substitution new material of energy density not yet sees desired today, lithium at present
Battery, which becomes, restricts the maximum bottleneck of mobile consumer electronics product development, and product continuous use only has 3-8h, can be greatly reduced
The user experience of portable product.Wireless charging have the characteristics that it is convenient, fast, all can be at any time in office, dining room, bedroom etc.
Charging is placed, developing wireless charging is to solve insufficient one good method of battery durable ability, and therefore, how research, which produces, is filled
The high soft magnetic ferrite of electrical efficiency is one of research hotspot.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of wireless charging magnetic sheet soft magnetic ferrite materials
Material, high magnetic permeability, low-loss, temperature stability are high, and then can effectively improve the charge efficiency of wireless charging magnetic sheet.
The invention proposes a kind of wireless charging magnetic sheet soft magnetic ferrite, including principal component and doping component, institutes
Stating principal component includes Fe2O3,MnO,ZnO；The doping component includes SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5。
Preferably, the Fe2O3, MnO, ZnO molar ratio be 12-15:6-10:5-8.
Preferably, on the basis of the gross mass of raw material, the doping component includes: 0.2-1.0wt%'s by additive amount
SnO2, 0.01-0.1wt% Nb2O5, 0.02-0.2wt% CaCO3, 0.5-1.5wt% TiO2, 0.05-0.15wt%
ZrO2, 0.01-0.1wt% Ta2O5, 0.05-0.15wt% P2O5。
Preferably, the preparation method of the wireless charging magnetic sheet soft magnetic ferrite includes the following steps: according to rubbing
You weigh Fe by the formula of ratio2O3、MnO、ZnO、SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5, mix, add water, once
Ball milling is dried, and is heated up, and is kept the temperature, cooling, and secondary ball milling obtains soft magnetic ferrite.
Preferably, a ball milling are as follows: with the revolving speed ball milling 8-10h of 300-500r/min.
Preferably, the temperature of the drying is 100-120 DEG C.
Preferably, the heating are as follows: be warming up to 900-960 DEG C with the heating rate of 5-8 DEG C/min.
Preferably, the soaking time is 5-8h.
Preferably, the time of the secondary ball milling is 3-5h.
The present invention is by the rational proportion of control principal component and doping component, and improving, permeability, drop are low-loss
At the same time it can also improve the temperature stability of Ferrite Material, and then improve the charge efficiency of wireless charging magnetic sheet.The present invention
Ferrite Material uses Fe2O3, MnO, ZnO be principal component, add SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5Jointly
As doping component, by reasonably adulterating, the magnetic behavior of Ferrite Material can be improved, reduce the power consumption of material, it can
Magnetic induction intensity between wireless charging efficiency of transmission, intensifier coil is effectively improved, while obstructing alternating magnetic field to ferrite magnetic sheet
Subsequent electronic component interferes；Principal component and doping component collective effect in the present invention, can further decrease wireless charging
The work of electromagnetic plate heats up, and power consumption is reduced, to improve charge efficiency.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of wireless charging magnetic sheet soft magnetic ferrite, including principal component and doping component, the principal component include
Fe2O3,MnO,ZnO；The doping component includes SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5；
Wherein, the Fe2O3, MnO, ZnO molar ratio be 15:6:8；It is described to be doping on the basis of the gross mass of raw material
It include: the SnO of 0.2wt% point by additive amount2, 0.1wt% Nb2O5, 0.02wt% CaCO3, 1.5wt% TiO2、
The ZrO of 0.05wt%2, 0.1wt% Ta2O5, 0.05wt% P2O5；
The preparation method of the wireless charging magnetic sheet soft magnetic ferrite, includes the following steps: according to molar ratio
Formula weighs Fe2O3、MnO、ZnO、SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5, mix, add water, with 500r/min
Revolving speed ball milling 8h, be placed at 120 DEG C and dry, be then warming up to 960 DEG C with the heating rate of 5 DEG C/min, keep the temperature 5h, it is cold
But, ball milling 5h again, obtains soft magnetic ferrite.
Embodiment 2
A kind of wireless charging magnetic sheet soft magnetic ferrite, including principal component and doping component, the principal component include
Fe2O3,MnO,ZnO；The doping component includes SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5；
Wherein, the Fe2O3, MnO, ZnO molar ratio be 12:10:5；On the basis of the gross mass of raw material, the doping
Ingredient includes: the SnO of 1.0wt% by additive amount2, 0.01wt% Nb2O5, 0.2wt% CaCO3, 0.5wt% TiO2、
The ZrO of 0.15wt%2, 0.01wt% Ta2O5, 0.15wt% P2O5；
The preparation method of the wireless charging magnetic sheet soft magnetic ferrite, includes the following steps: according to molar ratio
Formula weighs Fe2O3、MnO、ZnO、SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5, mix, add water, with 300r/min
Revolving speed ball milling 10h, be placed at 100 DEG C and dry, be then warming up to 900 DEG C with the heating rate of 8 DEG C/min, keep the temperature 8h, it is cold
But, ball milling 3h again, obtains soft magnetic ferrite.
Embodiment 3
A kind of wireless charging magnetic sheet soft magnetic ferrite, including principal component and doping component, the principal component include
Fe2O3,MnO,ZnO；The doping component includes SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5；
Wherein, the Fe2O3, MnO, ZnO molar ratio be 13:6:7；It is described to be doping on the basis of the gross mass of raw material
It include: the SnO of 0.6wt% point by additive amount2, 0.05wt% Nb2O5, 0.1wt% CaCO3, 1.0wt% TiO2、
The ZrO of 0.1wt%2, 0.06wt% Ta2O5, 0.12wt% P2O5；
The preparation method of the wireless charging magnetic sheet soft magnetic ferrite, includes the following steps: according to molar ratio
Formula weighs Fe2O3、MnO、ZnO、SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5, mix, add water, with 400r/min
Revolving speed ball milling 9h, be placed at 110 DEG C and dry, be then warming up to 930 DEG C with the heating rate of 6 DEG C/min, keep the temperature 7h, it is cold
But, ball milling 4h again, obtains soft magnetic ferrite.
Comparative example 1
Compared with Example 3, difference is only that comparative example 1: Fe2O3, MnO, ZnO molar ratio be 13:6:13, other
Part is identical with embodiment 3.
Comparative example 2
Compared with Example 3, difference is only that comparative example 2: doping component only includes CaCO3、P2O5, other conditions and reality
It is identical to apply example 3.
Comparative example 3
Compared with Example 3, difference is only that comparative example 3: not adding doping component, other conditions and embodiment 3 are complete
It is identical.
Test example 1
Wireless charging magnetic sheet, magnetic is made in the soft magnetic ferrite in 1-3 of the embodiment of the present invention and comparative example 1-3 respectively
P is lost with a thickness of 0.1 ± 0.01mm, measuring unit summation watt rating in piececvWith magnetic sheet saturation magnetization.
Table 1
As can be seen from Table 1, with soft magnetic ferrite compared with comparative example, product has wireless charging magnetic sheet of the invention
There is lower specific volume power to be lost, in practical applications, the fever of wireless charging magnetic sheet of the invention is smaller, charge efficiency
It is higher.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of wireless charging magnetic sheet soft magnetic ferrite, which is characterized in that including principal component and doping component, the master
Ingredient includes Fe2O3,MnO,ZnO；The doping component includes SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5。
2. wireless charging magnetic sheet soft magnetic ferrite according to claim 1, which is characterized in that the Fe2O3、
The molar ratio of MnO, ZnO are 12-15:6-10:5-8.
3. wireless charging magnetic sheet soft magnetic ferrite according to claim 1, which is characterized in that with total matter of raw material
On the basis of amount, the doping component includes: the SnO of 0.2-1.0wt% by additive amount2, 0.01-0.1wt% Nb2O5、0.02-
The CaCO of 0.2wt%3, 0.5-1.5wt% TiO2, 0.05-0.15wt% ZrO2, 0.01-0.1wt% Ta2O5、0.05-
The P of 0.15wt%2O5。
4. wireless charging magnetic sheet soft magnetic ferrite according to claim 1-3, which is characterized in that described
The preparation method of wireless charging magnetic sheet soft magnetic ferrite includes the following steps: to weigh Fe according to the formula of molar ratio2O3、
MnO、ZnO、SnO2、Nb2O5、CaCO3、TiO2、ZrO2、Ta2O5、P2O5, it mixing, adds water, a ball milling is dried, it heats up, heat preservation,
Cooling, secondary ball milling obtains soft magnetic ferrite.
5. wireless charging magnetic sheet soft magnetic ferrite according to claim 4, which is characterized in that a ball milling
Are as follows: with the revolving speed ball milling 8-10h of 300-500r/min.
6. wireless charging magnetic sheet soft magnetic ferrite according to claim 4, which is characterized in that the temperature of the drying
Degree is 100-120 DEG C.
7. wireless charging magnetic sheet soft magnetic ferrite according to claim 4, which is characterized in that the heating are as follows:
900-960 DEG C is warming up to the heating rate of 5-8 DEG C/min.
8. wireless charging magnetic sheet soft magnetic ferrite according to claim 4, which is characterized in that the soaking time
For 5-8h.
9. wireless charging magnetic sheet soft magnetic ferrite according to claim 4, which is characterized in that the secondary ball milling
Time be 3-5h.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402266A (en) * | 2002-09-13 | 2003-03-12 | 无锡晶石磁性电子器件有限公司 | Magnanese-zinc ferrite magnetic core |
| CN1514450A (en) * | 2002-12-20 | 2004-07-21 | Tdk株式会社 | Mn-Zn series feerite, magnetic core for transformer and transformer |
| CN104788086B (en) * | 2014-05-30 | 2018-01-05 | 安徽华林磁电科技有限公司 | A kind of soft magnetic ferrite |
| CN108766705A (en) * | 2018-06-28 | 2018-11-06 | 上海安费诺永亿通讯电子有限公司 | A kind of wireless charging manganese-zinc ferrite magnetic sheet and preparation method thereof |
-
2018
- 2018-12-17 CN CN201811542440.4A patent/CN109516815A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402266A (en) * | 2002-09-13 | 2003-03-12 | 无锡晶石磁性电子器件有限公司 | Magnanese-zinc ferrite magnetic core |
| CN1514450A (en) * | 2002-12-20 | 2004-07-21 | Tdk株式会社 | Mn-Zn series feerite, magnetic core for transformer and transformer |
| CN104788086B (en) * | 2014-05-30 | 2018-01-05 | 安徽华林磁电科技有限公司 | A kind of soft magnetic ferrite |
| CN108766705A (en) * | 2018-06-28 | 2018-11-06 | 上海安费诺永亿通讯电子有限公司 | A kind of wireless charging manganese-zinc ferrite magnetic sheet and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 罗绍华 等: "《功能材料》", 31 December 2014, 东北大学出版社 * |
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