CN108962570A - A kind of wireless charging modular structure - Google Patents
A kind of wireless charging modular structure Download PDFInfo
- Publication number
- CN108962570A CN108962570A CN201810594921.3A CN201810594921A CN108962570A CN 108962570 A CN108962570 A CN 108962570A CN 201810594921 A CN201810594921 A CN 201810594921A CN 108962570 A CN108962570 A CN 108962570A
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- CN
- China
- Prior art keywords
- wireless charging
- charge coil
- modular structure
- accommodation groove
- electromagnetic shielding
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of wireless charging modular structure, including electromagnetic shielding piece and annular shaped charge coil, the surface for being electromagnetically shielded piece is equipped with accommodation groove, and charge coil is located in accommodation groove, and the thickness of charge coil is less than or equal to the depth of accommodation groove.It is electromagnetically shielded on piece and accommodation groove is set, charge coil is set in accommodation groove, so that charge coil is deflected to the magnetic line of force that side issues, achievees the purpose that collapse the magnetic line of force, to improve the charge efficiency of wireless charging mould group；Isolated island is set, under the premise of not increasing wireless charging mould group, improves the shielding properties of electromagnetic shielding piece, is conducive to the charge efficiency for further increasing wireless charging mould group.
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, also known as induction charging, contactless charging are derived from the generation of wireless power conveying technology
A kind of New-type charge technology.Wireless charging technology utilizes near-field sensing, and being transmitted its energy to by wireless charger needs charging equipment.
Under normal circumstances, the energy of capacitive transmission is very little, this with electrode area is small very big relationship.Therefore, in order to meet to
Power level (such as from 5W to 25w) needed for consumer device charging, needs to increase the voltage value of electrode size and coupling, specifically
Depending on actual configuration.In order to realize the wireless receiving and dispatching between coupling electrode while minimize external amount of radiation, need
Correctly designed.
Mobile phone wireless charging technique developed recently is rapid, to obtain higher charge efficiency, electricity when reducing or eliminating charging
Influence of the magnetic field to mobile phone needs to be shielded using electromagnetic shielding piece.
Wireless charging modular structure generally includes electromagnetic shielding piece and the charge coil set on electromagnetic shielding on piece, electromagnetic screen
The effect for covering piece is exactly to completely cut off electromagnetic wave, prevents the materials such as metal from absorbing the electromagnetic wave of transmitting end equipment sending and generates opposite direction
Magnetic field.In mobile phone wireless charging receiving end, if not being electromagnetically shielded piece, wireless charging device is just unable to complete closely
Charging work.By taking smart phone as an example, due to the special structure of mobile phone, a battery must be installed in mobile phone, this electricity
Pond is actually the bad dream of Radio Transmission Technology development --- when the magnetic field that transmitting coil emits is by battery, battery
The metal of the inside will generate induced current, and usually this is called " vortex " by we, this vortex can generate one with transmitting
The opposite magnetic field of the magnetic direction that coil generates, balances out the magnetic field of transmitting coil formation, so that the sense that receiving coil receives
Voltage is answered to decline；And the vortex can be transformed into heat, so that battery of mobile phone is very warm.Therefore, in order to realize the wireless of mobile phone
Transmission must just place the device of one " every metal " between electric power receiving coil and battery of mobile phone, stop the magnetic line of force, avoid
The magnetic line of force reaches in battery.
As shown in figures 1 and 3, wireless charging modular structure includes being electromagnetically shielded piece 2 and filling set on electromagnetic shielding on piece
Electric coil 1, the existing wireless charging modular structure magnetic line of force 6 dissipate, and the shielding and magnetic conduction effect for being electromagnetically shielded piece 2 cannot obtain
It effectively plays, causes charge power, efficiency of transmission that cannot accomplish ultimate attainment.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of wireless charging modular structure is provided, the wireless charging mould group knot
Structure can be improved wireless charging efficiency.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of wireless charging modular structure, including
It is electromagnetically shielded piece and annular shaped charge coil, the surface of the electromagnetic shielding piece is equipped with accommodation groove, and the charge coil is located at described
In accommodation groove, the thickness of the charge coil is less than or equal to the depth of the accommodation groove.
In order to solve the above-mentioned technical problem, the present invention also uses following technical scheme: a kind of wireless charging modular structure, packet
Electromagnetic shielding piece and annular shaped charge coil are included, the surface of the electromagnetic shielding piece is equipped with isolated island, and the isolated island protrudes into the charging
In the hollow region of coil, the thickness of the charge coil is less than or equal to the height of the isolated island, the material of the isolated island with
The material of the electromagnetic shielding piece is consistent.
The beneficial effects of the present invention are: accommodation groove is arranged in electromagnetic shielding on piece, and charge coil is set in accommodation groove, so that
Charge coil is deflected to the magnetic line of force that side issues, and achievees the purpose that collapse the magnetic line of force, to improve wireless charging mould group
Charge efficiency.
Detailed description of the invention
Fig. 1 is the schematic diagram of the wireless charging modular structure of the prior art；
Fig. 2 is the schematic diagram of the wireless charging modular structure of the embodiment of the present invention one；
State diagram when Fig. 3 is the wireless charging mould group work of the prior art；
State diagram when Fig. 4 is the wireless charging mould group work of the embodiment of the present invention one；
Fig. 5 is the schematic diagram of the wireless charging modular structure of the embodiment of the present invention one.
Label declaration:
1, charge coil；
2, it is electromagnetically shielded piece；
3, magnetic conduction sheet；
4, accommodation groove；
5, isolated island；
6, the magnetic line of force.
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 most critical design of the present invention is: the wall surface of accommodation groove can reverse the magnetic line of force of charge coil sending, make magnetic
Line of force aggregation, intensified charging coil mutual inductance improve the charge coil degree of coupling, and then improve charge efficiency.
Referring to figure 2. and Fig. 5, a kind of wireless charging modular structure, including electromagnetic shielding piece 2 and annular shaped charge coil 1, institute
The surface for stating electromagnetic shielding piece 2 is equipped with accommodation groove 4, and the charge coil 1 is located in the accommodation groove 4, the charge coil 1
Thickness is less than or equal to the depth of the accommodation groove 4.
As can be seen from the above description, the beneficial effects of the present invention are: accommodation groove is arranged in electromagnetic shielding on piece, and charge coil is set
In in accommodation groove, so that charge coil is deflected to the magnetic line of force that side issues, achieve the purpose that collapse the magnetic line of force, to mention
The charge efficiency of high wireless charging mould group.
Further, electromagnetic shielding piece 2 includes at least two magnetic conduction sheets 3, and at least two magnetic conduction sheet 3 is stacked
Form the electromagnetic shielding piece 2.
Further, the thickness of the magnetic conduction sheet 3 is greater than or equal to 0.01mm.
Further, the difference range of the thickness of the thickness and charge coil 1 of the magnetic conduction sheet 3 is -0.2mm~0.2mm.
Further, the material of the electromagnetic shielding piece 2 includes that soft magnetic ferrite, powder core, permalloy and amorphous are received
At least one of meter Jing.
Seen from the above description, electromagnetic shielding piece can be made of a kind of magnetism of material, be also possible to by two kinds or
Made of two or more magnetic materials.Soft magnetic ferrite includes but is not limited to Mn-Zn ferrite, Ni-Zn ferrite and Mg-Zn
Ferrite.
Further, the accommodation groove 4 is in rectangular-ambulatory-plane, and the isolated island 5 in 4 center of rectangular-ambulatory-plane accommodation groove is located at the charge coil
1 hollow region.
Seen from the above description, when accommodation groove is arranged, retain the isolated island in accommodation groove center, which corresponds to charging cable
The hollow region of circle, it is possible to reduce the magnetic flux leakage of the corresponding electromagnetic shielding panel region of charge coil hollow region, to guarantee
The charge efficiency of charge coil.
Further, the outer wall face contact of the inner edge of charge coil and the isolated island.
Further, the outer rim of charge coil is contacted with the wall surface of the accommodation groove.
A kind of wireless charging modular structure, including electromagnetic shielding piece and annular shaped charge coil, the table of the electromagnetic shielding piece
Face is equipped with isolated island, and the isolated island protrudes into the hollow region of the charge coil, and the thickness of the charge coil is less than or equal to
The height of the isolated island, the material of the isolated island are consistent with the electromagnetic shielding material of piece.
As can be seen from the above description, the beneficial effects of the present invention are: the setting of isolated island is equivalent to increase in charge coil
The thickness of the corresponding electromagnetic shielding piece of empty region, to improve the shield effectiveness of electromagnetic shielding piece, and then improves wireless charging
The charge efficiency of mould group.
Further, the outer wall face contact of the inner edge of charge coil and the isolated island.
Embodiment one
Referring to figure 2. and Fig. 4, the embodiment of the present invention one are as follows: as shown in Fig. 2, a kind of wireless charging modular structure, including
It is electromagnetically shielded piece 2 and annular shaped charge coil 1, the surface of the electromagnetic shielding piece 2 is equipped with accommodation groove 4, and the charge coil 1 is located at
In the accommodation groove 4, the thickness of the charge coil 1 is less than or equal to the depth of the accommodation groove 4.
As shown in figure 4, the wall surface of accommodation groove 4 can reverse the magnetic line of force 6 of the sending of charge coil 1, assemble the magnetic line of force 6,
1 mutual inductance of intensified charging coil improves the degree of coupling of charge coil 1, and then improves charge efficiency.
Being electromagnetically shielded piece 2 includes at least two magnetic conduction sheets 3, at least two magnetic conduction sheet 3 be stacked to be formed it is described
It is electromagnetically shielded piece 2, optionally, two neighboring magnetic conduction sheet 3 passes through polymer insulation glue sticking.
The thickness of the magnetic conduction sheet 3 is greater than or equal to 0.01mm, the thickness of the magnetic conduction sheet 3 and the thickness of charge coil 1
Difference range be -0.2mm~0.2mm, the depth of accommodation groove 4 had both been likely larger than the thickness of single magnetic conduction sheet 3, it is also possible to be less than
The thickness of single magnetic conduction sheet 3, it is also possible to equal to the thickness of single magnetic conduction sheet 3.
Preferably, the accommodation groove 4 is in rectangular-ambulatory-plane, and the isolated island 5 in 4 center of rectangular-ambulatory-plane accommodation groove is located at the charge coil 1
Hollow region.Preferably, the outer wall face contact of the inner edge of charge coil 1 and the isolated island 5, the outer rim of charge coil 1 and institute
State the wall surface contact of accommodation groove 4.
It is described electromagnetic shielding piece 2 material include in soft magnetic ferrite, powder core, permalloy and amorphous nano-crystalline extremely
Few one kind.
Referring to figure 3. and Fig. 4, now with the wireless charging mould group of the present embodiment and traditional wireless charging mould group (such as Fig. 1 institute
Show structure) it is tested for the property and compares, the wireless charging mould group of the present embodiment and traditional wireless charging mould group electrical property pair
Than the results are shown in Table 1.
1 the present embodiment wireless charging mould group of table and traditional wireless charging mould group electric performance test Comparative result table
When test, wireless charging mould group is all made of nano crystal soft magnetic material and is made, specifically, the nanocrystalline trade mark are as follows:
1k107, ingredient Fe72Cu1Nb2Mo1V1Si15.5B7Co0.2P0.3(atomic ratio).
It can be seen that traditional wireless charging mould group is in the case where having three layers magnetic conduction sheet 3, Ls is the data from table 1
8.44uH, Rs are 375m Ω, Q value is 17.8；The wireless charging mould group of the present embodiment haves three layers magnetic conduction sheet below charge coil
In the case of, Ls 8.51uH, Rs are 374m Ω, Q value is 18.1.Therefore, in the feelings of wireless charging mould group thickness having the same
Under condition, the wireless charging mould group inductance of the present embodiment is higher, and Q value is bigger.
The wireless charging mould group of the present embodiment and traditional wireless charging mould group charge efficiency comparing result are as shown in table 2.
2 the present embodiment wireless charging mould group of table and traditional wireless charging mould group charge efficiency test result contrast table
The data from table 2 it can be seen that traditional wireless charging mould group in the case where having three layers magnetic conduction sheet, charge efficiency
It is 79.83%；The wireless charging mould group of the present embodiment have three layers below charge coil magnetic conduction sheet in the case where, charge efficiency is
82.57%.Its charge efficiency is higher by 2.74%, and the wireless charging of the present embodiment than the charge efficiency of conventional wireless charging module
In the case that electric mould group only has 2 layers of magnetic conduction sheet below charge coil 1, charge efficiency 80.67%, this is still than traditional nothing
The charge efficiency of line charging module is higher by 0.84 percentage point.Therefore, wireless charging modular structure of the invention and traditional nothing
Line charge electricity modular structure is compared, and has the advantage that charge efficiency is high, and in the case where identical charge efficiency, of the invention is wireless
Charging module is thinner.
Embodiment two
Referring to figure 5., the embodiment of the present invention two is a kind of deformation scheme of optimal technical solution in embodiment one, specifically
Are as follows: a kind of wireless charging modular structure, including electromagnetic shielding piece 2 and annular shaped charge coil 1, the surface of the electromagnetic shielding piece 2
Equipped with isolated island 5, the isolated island 5 is protruded into the hollow region of the charge coil 1, and the thickness of the charge coil 1 is less than or waits
In the height of the isolated island 5, the material of the isolated island 5 is consistent with the electromagnetic shielding material of piece 2.
It, can be with close to the open region of electromagnetic shielding piece around isolated island 5 although the present embodiment does not refer to accommodation groove
It is considered as accommodation groove, and charge coil 1 is also located in the accommodation groove.
Further, electromagnetic shielding piece 2 includes at least two magnetic conduction sheets 3, and at least two magnetic conduction sheet 3 is stacked
The electromagnetic shielding piece 2 is formed, optionally, two neighboring magnetic conduction sheet 3 passes through polymer insulation glue sticking.
The thickness of the magnetic conduction sheet 3 is greater than or equal to 0.01mm, the thickness of the magnetic conduction sheet 3 and the thickness of charge coil 1
Difference range be -0.2mm~0.2mm, the height of isolated island 5 had both been likely larger than the thickness of single magnetic conduction sheet 3, it is also possible to be less than single
The thickness of a magnetic conduction sheet 3, it is also possible to equal to the thickness of single magnetic conduction sheet 3.
It is described electromagnetic shielding piece 2 material include in soft magnetic ferrite, powder core, permalloy and amorphous nano-crystalline extremely
Few one kind.
Further, the outer wall face contact of the inner edge of charge coil 1 and the isolated island 5.
In conclusion wireless charging modular structure provided by the invention, accommodation groove, charge coil is arranged in electromagnetic shielding on piece
In accommodation groove, so that charge coil is deflected to the magnetic line of force that side issues, achieve the purpose that collapse the magnetic line of force, thus
Improve the charge efficiency of wireless charging mould group；Setting isolated island improves electromagnetic screen under the premise of not increasing wireless charging mould group
The shielding properties for covering piece is conducive to the charge efficiency for further increasing wireless charging mould group.
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 electromagnetic shielding piece and annular shaped charge coil, it is characterised in that: the electromagnetic screen
The surface for covering piece is equipped with accommodation groove, and the charge coil is located in the accommodation groove, and the thickness of the charge coil is less than or waits
In the depth of the accommodation groove.
2. wireless charging modular structure according to claim 1, it is characterised in that: electromagnetic shielding piece is led including at least two
Magnetic sheet, at least two magnetic conduction sheet are stacked to form the electromagnetic shielding piece.
3. wireless charging modular structure according to claim 2, it is characterised in that: the thickness of the magnetic conduction sheet is greater than or waits
In 0.01mm.
4. wireless charging modular structure according to claim 2, it is characterised in that: the thickness and charging cable of the magnetic conduction sheet
The difference range of the thickness of circle is -0.2mm~0.2mm.
5. wireless charging modular structure according to claim 1, it is characterised in that: it is described electromagnetic shielding piece material include
At least one of soft magnetic ferrite, powder core, permalloy and amorphous nano-crystalline.
6. wireless charging modular structure according to claim 1, it is characterised in that: the accommodation groove is in rectangular-ambulatory-plane, Back Word
The isolated island in shape accommodation groove center is located at the hollow region of the charge coil.
7. wireless charging modular structure according to claim 6, it is characterised in that: the inner edge of charge coil and the isolated island
Outer wall face contact.
8. wireless charging modular structure according to claim 1, it is characterised in that: the outer rim of charge coil and the accommodating
The wall surface of slot contacts.
9. a kind of wireless charging modular structure, including electromagnetic shielding piece and annular shaped charge coil, it is characterised in that: the electromagnetic screen
The surface for covering piece is equipped with isolated island, and the isolated island protrudes into the hollow region of the charge coil, and the thickness of the charge coil is small
In or equal to the isolated island height, the material of the isolated island is consistent with the electromagnetic shielding material of piece.
10. wireless charging modular structure according to claim 9, it is characterised in that: the inner edge of charge coil and the orphan
The outer wall face contact on island.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018103361122 | 2018-04-16 | ||
| CN201810336112 | 2018-04-16 |
Publications (1)
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|---|---|
| CN108962570A true CN108962570A (en) | 2018-12-07 |
Family
ID=64488283
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| CN201810594921.3A Pending CN108962570A (en) | 2018-04-16 | 2018-06-11 | A kind of wireless charging modular structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060832A (en) * | 2019-05-15 | 2019-07-26 | 昆山联滔电子有限公司 | A kind of preparation method of wireless charging mould group and its magnetic material |
| CN110932414A (en) * | 2019-11-19 | 2020-03-27 | 歌尔股份有限公司 | Transmitting device, receiving device and charging assembly |
| CN111262303A (en) * | 2020-03-17 | 2020-06-09 | 麦格磁电科技（珠海）有限公司 | Wireless charging shield, manufacturing method thereof and wireless charger |
| WO2021051993A1 (en) * | 2019-09-18 | 2021-03-25 | 许继电源有限公司 | Wireless charging device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130071764A (en) * | 2011-12-21 | 2013-07-01 | (주)그린파워 | Wireless charging apparatus of magnetic induction type |
| KR20140005251A (en) * | 2011-02-07 | 2014-01-14 | 도까이 카본 가부시끼가이샤 | Process for producing pigment dispersion composition |
| CN104813561A (en) * | 2012-11-29 | 2015-07-29 | 诺基亚技术有限公司 | Inductive energy transfer coil structure |
| WO2016190649A1 (en) * | 2015-05-26 | 2016-12-01 | 주식회사 아모센스 | Wireless power reception module |
| CN107887102A (en) * | 2016-09-30 | 2018-04-06 | 三星电机株式会社 | Magnetic piece and electronic equipment |
| CN108738286A (en) * | 2017-04-13 | 2018-11-02 | 上海光线新材料科技有限公司 | A kind of wireless charging electromagnetic shielding piece and preparation method |
| CN208158237U (en) * | 2018-04-16 | 2018-11-27 | 深圳市信维通信股份有限公司 | A kind of wireless charging modular structure |
-
2018
- 2018-06-11 CN CN201810594921.3A patent/CN108962570A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140005251A (en) * | 2011-02-07 | 2014-01-14 | 도까이 카본 가부시끼가이샤 | Process for producing pigment dispersion composition |
| KR20130071764A (en) * | 2011-12-21 | 2013-07-01 | (주)그린파워 | Wireless charging apparatus of magnetic induction type |
| CN104813561A (en) * | 2012-11-29 | 2015-07-29 | 诺基亚技术有限公司 | Inductive energy transfer coil structure |
| WO2016190649A1 (en) * | 2015-05-26 | 2016-12-01 | 주식회사 아모센스 | Wireless power reception module |
| CN107887102A (en) * | 2016-09-30 | 2018-04-06 | 三星电机株式会社 | Magnetic piece and electronic equipment |
| CN108738286A (en) * | 2017-04-13 | 2018-11-02 | 上海光线新材料科技有限公司 | A kind of wireless charging electromagnetic shielding piece and preparation method |
| CN208158237U (en) * | 2018-04-16 | 2018-11-27 | 深圳市信维通信股份有限公司 | A kind of wireless charging modular structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060832A (en) * | 2019-05-15 | 2019-07-26 | 昆山联滔电子有限公司 | A kind of preparation method of wireless charging mould group and its magnetic material |
| WO2021051993A1 (en) * | 2019-09-18 | 2021-03-25 | 许继电源有限公司 | Wireless charging device |
| CN110932414A (en) * | 2019-11-19 | 2020-03-27 | 歌尔股份有限公司 | Transmitting device, receiving device and charging assembly |
| WO2021098217A1 (en) * | 2019-11-19 | 2021-05-27 | 歌尔股份有限公司 | Transmitting device, receiving device, and charging assembly |
| CN110932414B (en) * | 2019-11-19 | 2021-11-16 | 歌尔股份有限公司 | Transmitting device, receiving device and charging assembly |
| CN111262303A (en) * | 2020-03-17 | 2020-06-09 | 麦格磁电科技（珠海）有限公司 | Wireless charging shield, manufacturing method thereof and wireless charger |
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