CN108879980A - A kind of wireless charging modular structure - Google Patents
A kind of wireless charging modular structure Download PDFInfo
- Publication number
- CN108879980A CN108879980A CN201810725481.0A CN201810725481A CN108879980A CN 108879980 A CN108879980 A CN 108879980A CN 201810725481 A CN201810725481 A CN 201810725481A CN 108879980 A CN108879980 A CN 108879980A
- Authority
- CN
- China
- Prior art keywords
- outer ring
- wireless charging
- shielding piece
- receiving coil
- piece ontology
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims description 11
- 238000013467 fragmentation Methods 0.000 claims description 8
- 238000006062 fragmentation reaction Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 6
- 210000000746 body region Anatomy 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910002555 FeNi Inorganic materials 0.000 description 2
- 229910005347 FeSi Inorganic materials 0.000 description 2
- 229910018605 Ni—Zn Inorganic materials 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- H02J7/025—
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Soft Magnetic Materials (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
The invention discloses a kind of wireless charging modular structures, including receiving coil and shielding piece ontology, receiving coil is arranged close to the bottom surface of the shielding piece ontology, it further include the outer ring magnetizer being connected with the shielding piece ontology, the outer ring magnetizer is equipped with the through-hole for accommodating the receiving coil, and the peripheral wall of the through-hole is arranged close to the outer rim of the receiving coil.In the case that wireless charging mould group of the invention does not increase thickness, possess higher charge efficiency.
Description
Technical field
The present invention relates to wireless charging technical field more particularly to a kind of wireless charging modular structures.
Background technique
Wireless charging technology is incuded using near field electromagnetic, is connect energy by magnetic field transmission to wireless charging by transmitting terminal
A kind of method of take-up circle.For field coupling, the wireless charging technology of magnetic field coupling principle, closer to the humorous of routine
Vibration formula Switching Power Supply.
Influence of the electromagnetic field to electronic equipment, needs using magnetic material when to obtain higher charge efficiency, reducing charging
Material.The effect of magnetic material is exactly to be distributed magnetic field in the magnetic material of high magnetic permeability, and magnetic field is prevented to arrive across magnetic material
Up to electronic equipment internal, the components such as electronic equipment internal metal (battery) is caused to absorb magnetic field to generate energy loss and electricity
Magnetic disturbance.It takes the mobile phone as an example, closely the position of Wireless charging coil is usually battery, when the alternating magnetic field that transmitting coil generates is worn
When overcharge mould group arrives at battery surface metal layer, induced current will be generated, here it is so-called " vortex ", this vortex meetings
The magnetic field offseted with transmitting terminal changes of magnetic field is generated, so that receiving coil induced voltage declines；And the vortex can handle
The energy conversion in magnetic field is at heat, so that battery of mobile phone becomes very hot.Therefore, in order to realize the wireless charging of mobile phone, just must
The device in one " isolation magnetic field " must be placed, between receiving coil and battery of mobile phone for avoiding magnetic field from influencing battery.
The device in existing " isolation magnetic field " is usually to shield piece, as shown in Figure 1, receiving coil 1 and shielding piece ontology 2 are total
It is same to constitute wireless charging mould group.The magnetic line of force of 1 periphery of receiving coil is almost perpendicular to shielding piece ontology 2, therefore, in nothing
In the case that line charging module thickness is limited, the shield effectiveness of the corresponding shielding piece body regions in receiving coil periphery is not very
It is good, it may appear that " leakage field " phenomenon causes the charge efficiency of wireless charging mould group to be affected.
Summary of the invention
The technical problem to be solved by the present invention is to：One kind is provided in the case where same thickness, charge efficiency is higher
Wireless charging mould group.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of wireless charging modular structure, including
Receiving coil and shielding piece ontology, receiving coil are arranged close to the bottom surface of the shielding piece ontology, further include and the shielding piece
The connected outer ring magnetizer of ontology, the outer ring magnetizer are equipped with the through-hole for accommodating the receiving coil, the week of the through-hole
Wall is arranged close to the outer rim of the receiving coil.
The beneficial effects of the present invention are：Outer ring magnetizer is added equivalent to increase the corresponding shielding in receiving coil periphery
The thickness of piece body regions is conducive to the shielding properties for improving wireless charging mould group entirety, to improve wireless charging mould group
Charge efficiency.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the wireless charging mould group of the prior art；
Fig. 2 is the cross-sectional view of the wireless charging mould group of the embodiment of the present invention one；
Fig. 3 is the cross-sectional view of the wireless charging mould group of the embodiment of the present invention two.
Label declaration：
1, receiving coil；
2, piece ontology is shielded；
3, outer ring magnetizer；
31, through-hole；
4, glue-line.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The design of most critical of the present invention is：Outer ring magnetizer is added equivalent to increase the corresponding screen in receiving coil periphery
Cover the thickness of piece body regions.
Referring to figure 2. and Fig. 3, a kind of wireless charging modular structure, including receiving coil 1 and shielding piece ontology 2, receive line
Circle 1 is arranged close to the bottom surface of the shielding piece ontology 2, further includes the outer ring magnetizer 3 being connected with the shielding piece ontology 2, institute
It states outer ring magnetizer 3 and is equipped with the through-hole 31 for accommodating the receiving coil 1, the peripheral wall of the through-hole 31 is close to the receiving coil
1 outer rim setting.
As can be seen from the above description, the beneficial effects of the present invention are：Outer ring magnetizer is added equivalent to increase reception line
The thickness of the corresponding shielding piece body regions in circle periphery, is conducive to the shielding properties for improving wireless charging mould group entirety, to mention
The charge efficiency of high wireless charging mould group.
Further, the peripheral wall of the through-hole 31 is close to the outer rim of the receiving coil 1.
Further, the shielding piece ontology 2 is set in the through-hole 31, and the outer rim of the shielding piece ontology 2 contradicts institute
State the peripheral wall of through-hole 31.
Further, the top surface of the shielding piece ontology 2 is coplanar with the top surface of the outer ring magnetizer 3.
Further, the top surface of the shielding piece ontology 2 is connected with the top surface of the outer ring magnetizer 3 by a glue-line 4.
Further, the thickness of the outer ring magnetizer 3 is greater than the thickness of the shielding piece ontology 2 and is less than or equal to institute
State the thickness of receiving coil 1 and the sum of the thickness of shielding piece ontology 2.
Further, the top surface of the outer ring magnetizer 3 is fitted on the bottom surface of the shielding piece ontology 2, outer ring magnetic conduction
The thickness of body 3 is less than or equal to the thickness of the receiving coil 1.
Seen from the above description, wireless charging mould group of the invention will not occur compared to existing wireless charging mould group thickness
Change, i.e., wireless charging mould group thickness of the invention does not increase.
Further, the outer ring magnetizer 3 is soft magnetic ferrite, alternatively, the outer ring magnetizer 3 is by multilayer magnetic powder
Hollow column made of the stacking of core film.
Further, the outer ring magnetizer 3 includes at least one layer of magnetic layer, and the magnetic layer is nanocrystalline strip, non-
Crystal zone material or soft magnetic metal band.
Further, the magnetic layer fragmentation.
Embodiment one
Referring to figure 2., the embodiment of the present invention one is：A kind of wireless charging modular structure, including receiving coil 1 and shielding
Piece ontology 2, receiving coil 1 are arranged close to the bottom surface of the shielding piece ontology 2, further include being connected with the shielding piece ontology 2
Outer ring magnetizer 3, the outer ring magnetizer 3 are equipped with the through-hole 31 for accommodating the receiving coil 1, and the peripheral wall of the through-hole 31 leans on
The outer rim setting of the nearly receiving coil 1.
Preferably, the peripheral wall of the through-hole 31 is close to the outer rim of the receiving coil 1, that is to say, that outside receiving coil 1
Edge contradicts the outer ring magnetizer 3, makes seamless between receiving coil 1 and the peripheral wall of through-hole 31.
In the present embodiment, the shielding piece ontology 2 is set in the through-hole 31, and the outer rim of the shielding piece ontology 2 contradicts
The peripheral wall of the through-hole 31.
Preferably, the top surface of the shielding piece ontology 2 is coplanar with the top surface of the outer ring magnetizer 3.It is detailed, the screen
The top surface for covering piece ontology 2 is connected with the top surface of the outer ring magnetizer 3 by a glue-line 4, and the preferably described glue-line 4 is pressure sensitive acrylic
Sour glue-line.
Further, the thickness of the outer ring magnetizer 3 is greater than the thickness of the shielding piece ontology 2 and is less than or equal to institute
State the thickness of receiving coil 1 and the sum of the thickness of shielding piece ontology 2.
In the present embodiment, the outer ring magnetizer 3 is soft magnetic ferrite, such as Mn-Zn ferrite, Ni-Zn ferrite height
Insulating properties magnetic material.In certain embodiments, the outer ring magnetizer 3 can also be is laminated by multilayer powder core film
Hollow column, such as multilayer FeSi powder core, FeSiAl powder core, FeNi powder core film stacking made of column
Body, adjacent two layers powder core film can use insulation glue sticking.
It is expanded as further, in other embodiments, the outer ring magnetizer 3 can also be to be made of other materials
, specifically, the outer ring magnetizer 3 includes at least one layer of magnetic layer, the magnetic layer be nanocrystalline strip, amorphous band or
Soft magnetic metal band.When the quantity of magnetic layer in outer ring magnetizer 3 is greater than or equal to two layers, the stacking of adjacent two layers magnetizer is set
It sets and by polymer insulation glue sticking.To avoid magnetizer 3 magnetic loss in outer ring excessive, the preferably described magnetic layer fragmentation, in detail
Thin, magnetic layer can carry out fragmentation in such a way that pressure roll rolls, and can also be carried out by the way of die-cutting machine cross cutting
Fragmentation.
Embodiment two
Referring to figure 3., the embodiment of the present invention two is：A kind of wireless charging modular structure, including receiving coil 1 and shielding
Piece ontology 2, receiving coil 1 are arranged close to the bottom surface of the shielding piece ontology 2, further include being connected with the shielding piece ontology 2
Outer ring magnetizer 3, the outer ring magnetizer 3 are equipped with the through-hole 31 for accommodating the receiving coil 1, and the peripheral wall of the through-hole 31 leans on
The outer rim setting of the nearly receiving coil 1.
Preferably, the peripheral wall of the through-hole 31 is close to the outer rim of the receiving coil 1, that is to say, that outside receiving coil 1
Edge contradicts the outer ring magnetizer 3, makes seamless between receiving coil 1 and the peripheral wall of through-hole 31.
In the present embodiment, the top surface of the outer ring magnetizer 3 is fitted on the bottom surface of the shielding piece ontology 2, and outer ring is led
The thickness of magnet 3 is less than or equal to the thickness of the receiving coil 1.Optionally, the outer ring magnetizer 3 passes through polymer insulation
Glue (such as pressure-sensitive acrylic glue) is bonded on shielding piece ontology 2.
In the present embodiment, the outer ring magnetizer 3 is soft magnetic ferrite, such as Mn-Zn ferrite, Ni-Zn ferrite height
Insulating properties magnetic material.In certain embodiments, the outer ring magnetizer 3 can also be is laminated by multilayer powder core film
Hollow column, such as multilayer FeSi powder core, FeSiAl powder core, FeNi powder core film stacking made of column
Body, adjacent two layers powder core film can use insulation glue sticking.
In addition, in other embodiments, the outer ring magnetizer 3 can also be made of other materials, specifically, institute
Stating outer ring magnetizer 3 includes at least one layer of magnetic layer, and the magnetic layer is nanocrystalline strip, amorphous band or soft magnetic metal band
Material.When the quantity of magnetic layer in outer ring magnetizer 3 is greater than or equal to two layers, adjacent two layers magnetizer is stacked and passes through height
Molecule insulation glue sticking.To avoid magnetizer 3 magnetic loss in outer ring excessive, the preferably described magnetic layer fragmentation, detailed, magnetic layer
Fragmentation can be carried out in such a way that pressure roll rolls, and can also carry out fragmentation by the way of die-cutting machine cross cutting.
In conclusion wireless charging mould group provided by the invention, adds outer ring magnetizer equivalent to increase receiving coil
The thickness of the corresponding shielding piece body regions in periphery, is conducive to the shielding properties for improving wireless charging mould group entirety, to improve
The charge efficiency of wireless charging mould group；In addition, the thinner thickness of outer ring magnetizer, not will increase the thickness of wireless charging mould group
Degree.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of wireless charging modular structure, including receiving coil and shielding piece ontology, receiving coil is close to the shielding piece sheet
The bottom surface of body is arranged, it is characterised in that：It further include the outer ring magnetizer being connected with the shielding piece ontology, the outer ring magnetizer
It is equipped with the through-hole for accommodating the receiving coil, the peripheral wall of the through-hole is arranged close to the outer rim of the receiving coil.
2. wireless charging modular structure according to claim 1, it is characterised in that：The peripheral wall of the through-hole connects described in being close to
The outer rim of take-up circle.
3. wireless charging modular structure according to claim 1, it is characterised in that：The shielding piece ontology is set to described logical
The outer rim of Kong Zhong, the shielding piece ontology contradict the peripheral wall of the through-hole.
4. wireless charging modular structure according to claim 3, it is characterised in that：The top surface of the shielding piece ontology and institute
The top surface for stating outer ring magnetizer is coplanar.
5. wireless charging modular structure according to claim 4, it is characterised in that：The top surface of the shielding piece ontology and institute
The top surface for stating outer ring magnetizer is connected by a glue-line.
6. wireless charging modular structure according to claim 4, it is characterised in that：The thickness of the outer ring magnetizer is greater than
It is described shielding piece ontology thickness and be less than or equal to the receiving coil thickness and shielding piece ontology the sum of thickness.
7. wireless charging modular structure according to claim 1, it is characterised in that：The top surface of the outer ring magnetizer is bonded
On the bottom surface of the shielding piece ontology, the thickness of outer ring magnetizer is less than or equal to the thickness of the receiving coil.
8. wireless charging modular structure according to claim 1, it is characterised in that：The outer ring magnetizer is soft magnet oxygen
Body, alternatively, the outer ring magnetizer is the hollow column as made of the stacking of multilayer powder core film.
9. wireless charging modular structure according to claim 1, it is characterised in that：The outer ring magnetizer includes at least one
Layer magnetic layer, the magnetic layer are nanocrystalline strip, amorphous band or soft magnetic metal band.
10. wireless charging modular structure according to claim 9, it is characterised in that：The magnetic layer fragmentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725481.0A CN108879980B (en) | 2018-07-04 | 2018-07-04 | Wireless charging module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725481.0A CN108879980B (en) | 2018-07-04 | 2018-07-04 | Wireless charging module structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108879980A true CN108879980A (en) | 2018-11-23 |
| CN108879980B CN108879980B (en) | 2024-04-02 |
Family
ID=64298803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810725481.0A Active CN108879980B (en) | 2018-07-04 | 2018-07-04 | Wireless charging module structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108879980B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431239A (en) * | 2020-04-20 | 2020-07-17 | 蓝沛光线（上海）电子科技有限公司 | Wireless charging module and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105981254A (en) * | 2013-12-17 | 2016-09-28 | 高通股份有限公司 | Coil topologies for inductive power transfer |
| CN107947396A (en) * | 2017-12-05 | 2018-04-20 | 宁波微鹅电子科技有限公司 | A kind of electromagnetic screen, wireless charging transmitting terminal, receiving terminal and system |
| JP2018074053A (en) * | 2016-11-01 | 2018-05-10 | トヨタ自動車株式会社 | Coil unit |
| CN108028121A (en) * | 2015-09-17 | 2018-05-11 | 高通股份有限公司 | Wireless power transfer antenna with separation shielding part |
| CN208548759U (en) * | 2018-07-04 | 2019-02-26 | 信维通信（江苏）有限公司 | A kind of wireless charging modular structure |
-
2018
- 2018-07-04 CN CN201810725481.0A patent/CN108879980B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105981254A (en) * | 2013-12-17 | 2016-09-28 | 高通股份有限公司 | Coil topologies for inductive power transfer |
| CN108028121A (en) * | 2015-09-17 | 2018-05-11 | 高通股份有限公司 | Wireless power transfer antenna with separation shielding part |
| JP2018074053A (en) * | 2016-11-01 | 2018-05-10 | トヨタ自動車株式会社 | Coil unit |
| CN107947396A (en) * | 2017-12-05 | 2018-04-20 | 宁波微鹅电子科技有限公司 | A kind of electromagnetic screen, wireless charging transmitting terminal, receiving terminal and system |
| CN208548759U (en) * | 2018-07-04 | 2019-02-26 | 信维通信（江苏）有限公司 | A kind of wireless charging modular structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431239A (en) * | 2020-04-20 | 2020-07-17 | 蓝沛光线（上海）电子科技有限公司 | Wireless charging module and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108879980B (en) | 2024-04-02 |
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