CN102544615A - Wireless charging battery - Google Patents
Wireless charging battery Download PDFInfo
- Publication number
- CN102544615A CN102544615A CN2011104174028A CN201110417402A CN102544615A CN 102544615 A CN102544615 A CN 102544615A CN 2011104174028 A CN2011104174028 A CN 2011104174028A CN 201110417402 A CN201110417402 A CN 201110417402A CN 102544615 A CN102544615 A CN 102544615A
- Authority
- CN
- China
- Prior art keywords
- inductance coil
- wireless charging
- circuit board
- charging battery
- electric core
- 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
- 238000007600 charging Methods 0.000 title claims abstract description 61
- 239000010410 layer Substances 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 31
- 230000005611 electricity Effects 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 12
- 229910000859 α-Fe Inorganic materials 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 239000010409 thin film Substances 0.000 claims description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 229910001416 lithium ion Inorganic materials 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000012827 research and development Methods 0.000 abstract description 9
- 239000011258 core-shell material Substances 0.000 abstract 2
- 230000005672 electromagnetic field Effects 0.000 description 17
- 239000000758 substrate Substances 0.000 description 14
- 238000013461 design Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000005291 magnetic effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a wireless charging battery. The wireless charging battery comprises a package shell, an electric core shell and a control circuit board in the package shell, and an electric core in the electric core shell, wherein an inductance coil is arranged in the package shell. According to the wireless charging battery provided by the invention, a receiving end coil and a charging battery of a wireless charging device are designed to be an integral body, so that electronic equipment can be endowed with a wireless charging function in a low-cost and flexible way, the excessive increase of the volume of the electronic equipment can be avoided, the research and development cycle is effectively shortened, and the convenience is provided for large-scale popularization and use of wireless charging technology.
Description
Technical field
The present invention relates to a kind of battery, relate in particular to a kind of wireless charging battery.
Background technology
Wireless charging technology (Wireless charging technology; Wireless charge technology) is a kind of technology of utilizing electromagnetic induction or the contactless electric energy transmitting of magnetic field coupled resonance principle between charger and electronic equipment.Usually form the high-frequency resonant electromagnetic field between the LC oscillating circuit (receiving coil and resonant capacitance) of the LC oscillating circuit (transmitting coil and resonant capacitance) of wireless charger end and electronic equipment end, realize the electric energy high efficiency of transmission.
The wireless charging technology is widely applied on small power electric subset (like mobile phone, digital camera, iPhone and iPad, notebook computer etc.), and it generally is that charging inlet (like mini USB/micro USB etc.) through electronic equipment charges for electronic equipment that the coil of receiving terminal produces behind the electric current.This application mode can be directed against each electronic equipment all overcoat or the battery bonnet of design special usually.For different electronic equipments, shape, the size of its overcoat or battery bonnet have nothing in common with each other, and be of a great variety, singly be the shell shape of mobile phone just have thousands of more than.Traditional way can cause that the wireless charging product development cycle is long, development cost is high; And increased the thickness (can increase the 2-3 millimeter usually) and the weight of electronic equipment, be not inconsistent with the slimming of existing electronic equipment (like mobile phone etc.), the development trend of miniaturization.
Summary of the invention
The present invention provides a kind of wireless charging battery, efficiently solve the wireless charging research and development of products cycle that prior art exists long, R&D costs are high, add the problems such as thickness and weight of giant electronics.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
The present invention provides a kind of wireless charging battery, comprises electric core housing and the control circuit board in the package casing, package casing, the electric core in the said electric core housing, is provided with inductance coil in the said package casing.
Wherein, Be provided with electro-magnetic screen layer between said electric core housing and the said inductance coil; The material of said electro-magnetic screen layer is soft magnetic ferrites; Said inductance coil sticks with glue agent and sticks on said electro-magnetic screen layer one surface, and said electric core housing sticks with glue layer and sticks on another surface of said electro-magnetic screen layer.
Said electric core is lithium-ion electric core, plumbic acid electricity core, NI-G electricity core, ni-mh electricity core, any in the electrostrictive polymer core.
Further, the said inductance coil individual layer inductance coil that can turn to for litz wire.
Said control circuit board is connected with extraction electrode on the said electric core housing through two electrode connecting lines, and said control circuit board is provided with two electrode terminals, and said two electrode terminals are connected with the two ends of said inductance coil respectively.Said control circuit board is a printed circuit board (PCB), and said control circuit board is provided with wireless charging management circuit, overvoltage crowbar and current foldback circuit.
Be provided with the inductance coil terminal lead-out groove that spacing is less than or equal to 1 millimeter near said control circuit board place on the said electro-magnetic screen layer.The edge of said electro-magnetic screen layer is wideer more than 5 millimeters than the edge of said inductance coil.The summation of said inductance coil thickness, said adhesive layer and said electromagnetic shielding layer thickness is less than or equal to 0.8 millimeter.
Further, said inductance coil can be the printed coil based on printed circuit board (PCB).
The slim circuit board that said printed circuit board (PCB) is processed for the FR-4 grade material, flexible PCB or PET thin-film material circuit board.Said inductance coil is printed on the two sides of printed circuit board (PCB) respectively, and printed circuit board (PCB) is provided with via hole, and upper strata inductance coil, lower floor's inductance coil are with parallel connection of via hole mode or series connection.Said control circuit board is connected with the extraction electrode of said electric core housing through two electrode connecting lines, and said control circuit board is provided with two electrode terminals, and said two electrode terminals are connected with the two ends of said upper strata inductance coil, lower floor's inductance coil respectively.
Wherein, the material of said electric core housing is soft magnetic ferrites, and said inductance coil sticks with glue the outer surface that agent sticks on said electric core housing.Said inductance coil is the printed coil based on printed circuit board (PCB).The edge of said inductance coil is narrower more than 5 millimeters than the edge of the said electric core housing side adjacent with said inductance coil.The summation of said inductance coil thickness and said adhesive thickness is less than or equal to 0.5 millimeter.
The present invention processes one with the receiving terminal coil and the rechargeable battery of wireless charger, designs a kind of novel wireless charging battery, prevents that effectively the electronic equipment volume is excessive, has effectively reduced the R&D cycle, and the large-scale promotion of being convenient to the wireless charging technology is used.
Description of drawings
Fig. 1 is the cross-sectional view of the embodiment of the invention 1,2;
Fig. 2 is the structural representation of inductance coil in the embodiment of the invention 1;
Fig. 3 is the structural representation of inductance coil in the embodiment of the invention 2;
Fig. 4 is the cross-sectional view of the embodiment of the invention 3.
Label declaration among the figure:
1, package casing, 2, electric core housing, 3, control circuit board, 4, electric core, 5, inductance coil,
6, electro-magnetic screen layer, 7, adhesive layer, 8, electrode connecting line, 9, electrode terminal, 10, electrode terminal,
11, inductance coil terminal lead-out groove, 12, battery electrode, 13, substrate, 14, via hole,
15, upper strata inductance coil, 16, lower floor's inductance coil, 17, extraction electrode.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
The present invention provides a kind of wireless charging battery, comprises electric core housing 2 and the control circuit board 3 in the package casing 1, package casing 1, the electric core 4 in the electric core housing 2, is provided with inductance coil 5 in the package casing 1.Inductance coil 5 is a coupling coil, and as the receiving terminal of wireless charger, thereby the energy of electromagnetic field of inductance coil 5 induction transmitting terminals produces electric current, and then is battery charge.
Embodiment 1
Be illustrated in figure 1 as the cross-sectional view of the embodiment of the invention 1, be illustrated in figure 2 as the structural representation of inductance coil in the embodiment of the invention 1.
Be provided with electro-magnetic screen layer 6 between electricity core housing 2 and the inductance coil 5; Inductance coil 5 sticks with glue agent and sticks on electro-magnetic screen layer 6 one surfaces; Electricity core housing 2 sticks with glue another surface that layer 7 sticks on electro-magnetic screen layer 6, the individual layer inductance coil that inductance coil 5 turns to for litz wire.
In the wireless charging process; The transmitting terminal of wireless charger and receiving terminal inside are respectively equipped with corresponding coil; The transmitting terminal coil connects power supply and produces the electromagnetic field of high frequency; Give receiving terminal through electromagnetic field couples resonance with power transfer, thereby the energy of electromagnetic field of the coil-induced transmitting terminal of receiving terminal produces electric current, and then be battery charge.In the present embodiment,, form the electromagnetic field of alternation as producing high frequency induction current in the inductance coil 5 of receiving terminal.In the electromagnetic field of alternation, metal electric core housing 2 grades can produce eddy current, and along with the growth in charging interval, the temperature of battery can increase sharply, and are light then reduce the useful life of electric core 4 or cause electric core 4 to damage, and heavyly then cause electric core 4 blasts.In addition, because the generation of eddy current, system's input power improves, and also can reduce the whole efficiency of wireless charging.For effectively protecting electric core 4; Guarantee the charge efficiency of wireless charger, present embodiment is provided with electro-magnetic screen layer 6 between electric core 4 and inductance coil 5, and electric core 4 is to stick with glue layer 7 to stick on the electro-magnetic screen layer 6; Inductance coil 5 has adopted the processing of impregnation earlier, sticks on the electro-magnetic screen layer 6 again.The edge of electro-magnetic screen layer 6 is wideer more than 5 millimeters than the edge of inductance coil 5, can prevent the leakage of electromagnetic field basically.The material of electro-magnetic screen layer 6 is soft magnetic ferrites, and this type material is under more weak magnetic field, and easy magnetization also is prone to demagnetization, is the excellent material of shield electromagnetic, like zinc chrome ferrite and nickel-zinc ferrite etc.
In order to make the thickness of inductance coil 5 can too not influence thickness and the volume of whole embodiment, present embodiment has adopted single layer coil, also can be referred to as ultra-thin coupled inductor.But in order to guarantee that single layer coil produces enough strong electromagnetic field and enough big electric current, the lead that turns to coil can only be chosen litz wire, because litz wire is meant a conductor stranded by the conductor of many independent insulation or that braiding forms.
Be provided with the inductance coil terminal lead-out groove 11 that spacing is less than or equal to 1 millimeter near control circuit board 3 places on the electro-magnetic screen layer 6.Inductance coil 5 has two terminals; One of them terminal can directly be connected with electrode terminal 9 and can not intersect with other each several parts of coil simultaneously; But another terminal after coil winds, can appear at very naturally coil central authorities (the single layer coil spirality is twined, an inevitable end in coil, an end is outside coil); Will extract this terminal this moment from coil central authorities; Just will intersect with the coil part inevitably, will increase the thickness of this coil like this, the purpose that reduces product thickness with the design is not inconsistent.Therefore, be provided with inductance coil terminal lead-out groove 11 this moment on electro-magnetic screen layer 6 are inevitable choices, and the inductance coil terminal is drawn the back and is connected with electrode terminal 10 from inductance coil terminal lead-out groove 11.On shielding material, offer terminal lead-out groove 11 and possibly cause the leakage of electromagnetic field, reduce the whole structure of electromagnetic shielding.Through Theoretical Calculation and electromagnetic-field simulation, reach a conclusion, when the width of this groove is no more than 1 millimeter, can not cause the reduction of effectiveness; In addition, the lead of winding around is thinner, and cross-sectional diameter is also less than 1 millimeter, so the spacing of inductance coil terminal lead-out groove is less than or equal to 1 millimeter.
The thickness of coiling inductance coil 5 is generally 0.2 millimeter, and the thickness of electro-magnetic screen layer 6 is the 0.4-0.5 millimeter, and the thickness of adhesive layer 7 is 0.1 millimeter, so the summation of threeply degree is less than or equal to 0.8 millimeter.Above-mentioned three's gross thickness, the thickness of the back increase of the rechargeable battery of present embodiment and prior art contrast just is an important parameters in the present invention in fact.This also is to reduce for present embodiment integral thickness and volume as far as possible, so that use in miniaturized electronics large-scale promotion such as mobile phone, PDA.
Also possess printed circuit board (PCB) in the battery of prior art, this printed circuit board (PCB) is provided with overvoltage crowbar and current foldback circuit etc., and therefore in the present embodiment, the existence of control circuit board 3 can't cause the thickness of battery to increase.Because generally meeting welding component on PCB comprises resistance, electric capacity and IC chip etc., thickness can be far longer than the thickness of coiled antenna itself usually.Traditional design needs the power management of independent PCB circuit board as wireless charging usually; And the present invention is fused to the power management of wireless charging with original overvoltage of battery and current foldback circuit; Just can guarantee that the thickness of battery increase is merely the thickness of coil itself, it is extremely thin to make that the wireless charging battery can be done.
Above-mentioned electric core 4 can be lithium-ion electric core, plumbic acid electricity core, NI-G electricity core, ni-mh electricity core, and any in the electrostrictive polymer core can be widely used in miniaturized electronicss such as mobile phone, PDA, iphone.
Be illustrated in figure 1 as the cross-sectional view of the embodiment of the invention 2, be illustrated in figure 3 as the structural representation of inductance coil in the embodiment of the invention 2.
There is the bigger shortcoming of lead internal resistance in the technology of film silk screen printing, has stray inductance and electric capacity between coil 5 and the printed circuit board (PCB) simultaneously, causes the quality factor of inductance coil relatively low.But, because the cost of printed coil is lower, and surfacing, through optimizing relevant parameters, reduce the following of few prerequisite in quality factor, also can be with this scheme as a kind of replacement scheme cheaply.
Copper membrane thickness is not less than 2 millimeters on the substrate 13, and via hole 14 diameters are not less than 2 millimeters, and quality factor are not less than 15.Above-mentioned parameter is the basic parameter of PCB coil design, and wherein the thickness of copper membrane depends mainly on the size of the electric current that passes through.If the thickness of copper film is low excessively, be equivalent to reduce the cross-sectional area of lead, cause the internal resistance of coil to increase, lowered the quality factor q value of coil.Because the PCB coil can be distributed in the bilayer of substrate 13 obverse and reverses, the via diameter of suitable connection can reduce the impedance of coil connecting terminal, also is the important process measure that guarantees that the coil of design has suitable quality factor.
The circuit board that substrate 13 is processed for the FR-4 grade material, flexible PCB (FPC) or PET thin-film material circuit board.The present invention will make product integral body try one's best and approach, volume is as far as possible little, and therefore, several kinds of circuit boards that here are suitable for all are relatively thinner.
FR-4 is a kind of code name of flame resistant material grade, and the meaning of representative is a resin material must can be from a kind of material specification of horizontal blanking through fired state.The used FR-4 grade material of general circuit plate just has much more very kinds, and majority all is that the epoxy resin with so-called four functions (Tera-Function) adds the composite material that filler (Filler) and glass fiber are made.The sort circuit plate has good toughness, can process slim circuit board, with requirement according to the invention.
Flexible PCB (FPC) is to be a kind of flexible printed circuit with height reliability that base material is processed with polyimides or polyester film; Be called for short soft board or FPC; Have that distribution density is high, in light weight, the characteristics of thin thickness, be mainly used on a lot of products such as mobile phone, notebook computer, PDA, digital camera, LCM.
PET is a kind of macromolecular material, and full name is a PET, uses very extensively, belongs to degradable and reclaims a type material.The PET product has good, nontoxic, impermeable, the light weight of the transparency, production efficiency is high thereby received widely and using, and at electronic applications, flexible printed circuit board that the PET material processes and thin film switch etc. has been arranged.
In the present embodiment, new wireless charging battery is compared with traditional rechargeable battery, and the thickness increase is no more than 0.9 millimeter, and the effective evenness of hold-in winding, can large-scale mass production, and cost is lower.
Be illustrated in figure 4 as the cross-sectional view 4 of the embodiment of the invention 2.
The material of electricity core housing 2 is soft magnetic ferrites, and whole electric core housing 2 is electro-magnetic screen layer, and inductance coil 5 sticks with glue the outer surface that agent sticks on electric core housing 2.Inductance coil 5 is the printed coil based on printed circuit board (PCB), and this printed circuit board (PCB) can be called substrate 13.The edge of inductance coil 5 is narrower more than 5 millimeters than the edge of the electric core housing 2 adjacent with inductance coil 5.Inductance coil 5 is printed on the two sides of substrate 13 respectively, and substrate 13 is provided with via hole 14, and upper strata inductance coil, lower floor's inductance coil are with parallel connection of via hole mode or series connection.
In the receiving coil design of wireless charging battery; Usually the thickness of electro-magnetic screen layer is the 4-5 millimeter; In order further to reduce the integral thickness of present embodiment, can only further reduce the thickness of electro-magnetic screen layer, promptly process electric core housing with soft magnetic ferrites; Directly as the electromagnetic shielding material layer, the thickness of this electro-magnetic screen layer is the 2-3 millimeter.Electromagnetic field decays to the thickness that the 1/e (about 36.8%) of face value locates by conductive surface and is called to become skin thickness (claiming the depth of penetration again), representes with d.The size of skin thickness of becoming has generally determined the thickness of electromagnetic shielding material layer.Adopt the electromagnetic field frequency of wireless power transmission to be generally 100-200KHz, in order to obtain effective shielding action, the thickness of screen must approach the inner electromagnetic wavelength (λ=2 π d) of shielding material.When high frequency, because the magnetic hysteresis loss and the eddy current loss of ferromagnetic material are bigger, thereby cause the decline of resonant circuit quality factor Q value, thus generally do not adopt the magnetic screen of high magnetic permeability, and adopt the material of high conductivity to do electromagnetic shielding.Through the result of Theoretical Calculation and electromagnetic-field simulation, the electromagnetic shielding layer thickness needs the 4-5 millimeter.If adopt the 3rd instance of the present invention; In order further to lower the thickness of battery; The shell of electric core itself is adopted electromagnetic shielding material; Utilize the thickness of housing itself just can form 2-3 millimeter electro-magnetic screen layer (thickness of housing bilayer thickness can reach the 4-5 millimeter), so just can produce the effect of electromagnetic shielding.Airtight in addition cavity structure also can form the electric field shielding effect, with the operate as normal of the electromagnetic field effects battery charging and discharging that prevents to produce.
In the present embodiment; The existence of electro-magnetic screen layer does not increase the product integral thickness; Have only inductance coil and the existence of adhesive on the substrate 13; Increased the integral thickness of product, the summation of inductance coil thickness and adhesive thickness is less than or equal to 0.5 millimeter, and the thickness increase of whole wireless charging battery is no more than 0.5 millimeter.
The invention provides a kind of slim wireless charging battery, can be applied in the electronic equipments such as mobile phone, digital camera, iPhone, iPad, notebook computer.Among the present invention, can realize that the thickness of wireless charging battery increases the technique effect of 0.5-0.9 millimeter.In general, the assembling allowance behind the mobile phone between shell on the back and the main frame is 0.6 millimeter, some mobile phone in addition can the present invention in the wireless charging battery directly be installed on the mobile phone and use.For other mobile phones, can only reduce the capacity of wireless charging battery to a certain extent, be installed to again after making cell thickness further reduce in the mobile phone and use.For the bigger electronic equipment of other volumes, the assembling allowance is very general thing greater than 0.9 millimeter in the battery case, and wireless charging battery provided by the invention can directly apply in the bigger electronic equipment of these volumes.Under the prerequisite that does not reduce battery capacity; Technical scheme of the present invention can reduce the recruitment of wireless charging cell thickness to greatest extent; The volume and the thickness that can not influence electronic product have much impact, and flexible design, change conveniently, are convenient to large-scale promotion application.In the prior art, people need carry out miscellaneous application product R&D to the electronic equipments such as mobile phone of various different models and shape, and the R&D cycle is long, R&D costs are high, also can cause the waste of the material cost of Dary; But, comparatively speaking, the rechargeable battery of electronic equipment, like battery of mobile phone, its model and shape have certain standard, and its kind is wanted much less, can effectively shorten the R&D cycle and reduce R&D costs.Compare, the present invention helps the large-scale promotion of wireless charging technology more and uses.
Above a kind of wireless charging battery provided by the present invention has been carried out detailed explanation.As far as one of ordinary skill in the art, any conspicuous change of under the prerequisite that does not deviate from connotation of the present invention, it being done all will constitute to infringement of patent right of the present invention, with corresponding legal responsibilities.
Claims (17)
1. wireless charging battery comprises electric core housing and the control circuit board in package casing, the package casing, the electric core in the said electric core housing, it is characterized in that: be provided with inductance coil in the said package casing.
2. wireless charging battery as claimed in claim 1; It is characterized in that: be provided with electro-magnetic screen layer between said electric core housing and the said inductance coil; The material of said electro-magnetic screen layer is soft magnetic ferrites; Said inductance coil sticks with glue agent and sticks on said electro-magnetic screen layer one surface, and said electric core housing sticks with glue layer and sticks on another surface of said electro-magnetic screen layer.
3. according to claim 1 or claim 2 wireless charging battery is characterized in that: the individual layer inductance coil that said inductance coil can turn to for litz wire.
4. according to claim 1 or claim 2 wireless charging battery; It is characterized in that: said control circuit board links to each other with extraction electrode on the said electric core housing through two electrode connecting lines; Said control circuit board is provided with two electrode terminals, and said two electrode terminals are connected with the two ends of said inductance coil respectively.
5. wireless charging battery as claimed in claim 1 is characterized in that: said electric core is lithium-ion electric core, plumbic acid electricity core, NI-G electricity core, ni-mh electricity core, any in the electrostrictive polymer core.
6. wireless charging battery as claimed in claim 1 is characterized in that: said control circuit board is a printed circuit board (PCB), and said control circuit board is provided with wireless charging management circuit, overvoltage crowbar and current foldback circuit.
7. wireless charging battery as claimed in claim 2 is characterized in that: be provided with the inductance coil terminal lead-out groove that spacing is less than or equal to 1 millimeter near said control circuit board place on the said electro-magnetic screen layer.
8. wireless charging battery as claimed in claim 2 is characterized in that: the edge of said electro-magnetic screen layer is wideer more than 5 millimeters than the edge of said inductance coil.
9. wireless charging battery as claimed in claim 2 is characterized in that: the summation of said inductance coil thickness, said adhesive layer and said electromagnetic shielding layer thickness is less than or equal to 0.8 millimeter.
10. according to claim 1 or claim 2 wireless charging battery, it is characterized in that: said inductance coil can be the printed coil based on printed circuit board (PCB).
11. wireless charging battery as claimed in claim 10 is characterized in that: the slim circuit board that said printed circuit board (PCB) is processed for the FR-4 grade material, flexible PCB or PET thin-film material circuit board.
12. wireless charging battery as claimed in claim 10 is characterized in that: said inductance coil is printed on the two sides of printed circuit board (PCB) respectively, said printed circuit board (PCB) is provided with via hole, and upper strata inductance coil, lower floor's inductance coil are with parallel connection of via hole mode or series connection.
13. wireless charging battery as claimed in claim 10; It is characterized in that: said control circuit board is connected with the extraction electrode of said electric core housing through two electrode connecting lines; Said control circuit board is provided with two electrode terminals, and said two electrode terminals are connected with the two ends of said upper strata inductance coil, lower floor's inductance coil respectively.
14. wireless charging battery as claimed in claim 1 is characterized in that: the material of said electric core housing is soft magnetic ferrites, and said inductance coil sticks with glue the outer surface that agent sticks on said electric core housing.
15. wireless charging battery as claimed in claim 14 is characterized in that: said inductance coil is the printed coil based on printed circuit board (PCB).
16. wireless charging battery as claimed in claim 14 is characterized in that: the edge of said inductance coil is narrower more than 5 millimeters than the edge of the said electric core housing side adjacent with said inductance coil.
17. wireless charging battery as claimed in claim 14 is characterized in that: the summation of said inductance coil thickness and said adhesive thickness is less than or equal to 0.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110417402.8A CN102544615B (en) | 2011-12-14 | 2011-12-14 | Wireless charging battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110417402.8A CN102544615B (en) | 2011-12-14 | 2011-12-14 | Wireless charging battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102544615A true CN102544615A (en) | 2012-07-04 |
| CN102544615B CN102544615B (en) | 2014-08-06 |
Family
ID=46350974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110417402.8A Active CN102544615B (en) | 2011-12-14 | 2011-12-14 | Wireless charging battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102544615B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983375A (en) * | 2012-12-03 | 2013-03-20 | 南京理工大学 | Wireless chargeable lithium battery |
| CN104813561A (en) * | 2012-11-29 | 2015-07-29 | 诺基亚技术有限公司 | Inductive energy transfer coil structure |
| CN104821641A (en) * | 2015-04-20 | 2015-08-05 | 深圳市天微电子有限公司 | Wireless charging device |
| CN106410888A (en) * | 2015-07-28 | 2017-02-15 | 日立-Lg数据存储韩国公司 | Wirelessly chargeable apparatus for supplying power |
| CN108270078A (en) * | 2018-01-29 | 2018-07-10 | 上海竹路电子科技有限公司 | A kind of high efficiency wireless charging reception antenna |
| CN108347099A (en) * | 2017-01-23 | 2018-07-31 | 王丽 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
| CN108550937A (en) * | 2018-05-03 | 2018-09-18 | 深圳市熙锦科技发展有限公司 | The rechargeable battery of built-in Wireless charging coil |
| CN108578043A (en) * | 2018-02-26 | 2018-09-28 | 上海交通大学 | Artificial sphincter ani battery anti-explosion fills system |
| CN108923545A (en) * | 2018-07-10 | 2018-11-30 | 维沃移动通信有限公司 | A kind of electronic equipment, wireless charging device and wireless charging method |
| WO2018218658A1 (en) * | 2017-06-02 | 2018-12-06 | Littelfuse Electronics (Shanghai) Co., Ltd. | Printed circuit board embedded protection components |
| US10224984B1 (en) | 2018-01-03 | 2019-03-05 | Shenzhen Sunlord Electronics Co., Ltd. | Electronic device and ceramic back cover used in electronic device |
| CN110137676A (en) * | 2013-03-08 | 2019-08-16 | 纽卡润特有限公司 | Multilayer pin configuration for efficient wireless communication |
| WO2019223488A1 (en) * | 2018-05-22 | 2019-11-28 | 华为技术有限公司 | Battery electrode sheet and preparation method therefor, battery management method and related apparatus |
| CN110682815A (en) * | 2019-09-29 | 2020-01-14 | 无锡市先知动力科技有限公司 | Wireless charging device of electric vehicle |
| US11336003B2 (en) | 2009-03-09 | 2022-05-17 | Nucurrent, Inc. | Multi-layer, multi-turn inductor structure for wireless transfer of power |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10248172A (en) * | 1997-03-07 | 1998-09-14 | Nippon Steel Corp | Battery-driven motor system |
| CN201478413U (en) * | 2009-09-02 | 2010-05-19 | 北京华旗资讯数码科技有限公司 | Wireless rechargeable battery |
| CN202004480U (en) * | 2010-12-31 | 2011-10-05 | 科翔电子(深圳)有限公司 | Wireless induction charging device for portable communication equipment and portable electronic equipment with wireless induction charging device |
-
2011
- 2011-12-14 CN CN201110417402.8A patent/CN102544615B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10248172A (en) * | 1997-03-07 | 1998-09-14 | Nippon Steel Corp | Battery-driven motor system |
| CN201478413U (en) * | 2009-09-02 | 2010-05-19 | 北京华旗资讯数码科技有限公司 | Wireless rechargeable battery |
| CN202004480U (en) * | 2010-12-31 | 2011-10-05 | 科翔电子(深圳)有限公司 | Wireless induction charging device for portable communication equipment and portable electronic equipment with wireless induction charging device |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11336003B2 (en) | 2009-03-09 | 2022-05-17 | Nucurrent, Inc. | Multi-layer, multi-turn inductor structure for wireless transfer of power |
| US11335999B2 (en) | 2009-03-09 | 2022-05-17 | Nucurrent, Inc. | Device having a multi-layer-multi-turn antenna with frequency |
| US11916400B2 (en) | 2009-03-09 | 2024-02-27 | Nucurrent, Inc. | Multi-layer-multi-turn structure for high efficiency wireless communication |
| US11476566B2 (en) | 2009-03-09 | 2022-10-18 | Nucurrent, Inc. | Multi-layer-multi-turn structure for high efficiency wireless communication |
| CN104813561A (en) * | 2012-11-29 | 2015-07-29 | 诺基亚技术有限公司 | Inductive energy transfer coil structure |
| JP2015535676A (en) * | 2012-11-29 | 2015-12-14 | ノキア テクノロジーズ オーユー | Inductive energy transfer coil structure |
| US9973023B2 (en) | 2012-11-29 | 2018-05-15 | Provenance Asset Group Llc | Inductive energy transfer coil structure |
| CN102983375A (en) * | 2012-12-03 | 2013-03-20 | 南京理工大学 | Wireless chargeable lithium battery |
| CN110137676A (en) * | 2013-03-08 | 2019-08-16 | 纽卡润特有限公司 | Multilayer pin configuration for efficient wireless communication |
| CN110137676B (en) * | 2013-03-08 | 2023-12-26 | 纽卡润特有限公司 | Multilayer lead structure for efficient wireless communication |
| CN104821641A (en) * | 2015-04-20 | 2015-08-05 | 深圳市天微电子有限公司 | Wireless charging device |
| CN106410888A (en) * | 2015-07-28 | 2017-02-15 | 日立-Lg数据存储韩国公司 | Wirelessly chargeable apparatus for supplying power |
| CN108347099A (en) * | 2017-01-23 | 2018-07-31 | 王丽 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
| WO2018218658A1 (en) * | 2017-06-02 | 2018-12-06 | Littelfuse Electronics (Shanghai) Co., Ltd. | Printed circuit board embedded protection components |
| US10224984B1 (en) | 2018-01-03 | 2019-03-05 | Shenzhen Sunlord Electronics Co., Ltd. | Electronic device and ceramic back cover used in electronic device |
| WO2019134073A1 (en) * | 2018-01-03 | 2019-07-11 | 深圳顺络电子股份有限公司 | Rear ceramic cover for electronic device, and electronic device |
| CN108270078A (en) * | 2018-01-29 | 2018-07-10 | 上海竹路电子科技有限公司 | A kind of high efficiency wireless charging reception antenna |
| CN108270078B (en) * | 2018-01-29 | 2020-08-14 | 上海万兹新材料科技有限公司 | High-efficiency wireless charging receiving antenna |
| CN108578043A (en) * | 2018-02-26 | 2018-09-28 | 上海交通大学 | Artificial sphincter ani battery anti-explosion fills system |
| CN108550937B (en) * | 2018-05-03 | 2021-07-06 | 深圳市熙锦科技发展有限公司 | Rechargeable battery with built-in wireless charging coil |
| CN108550937A (en) * | 2018-05-03 | 2018-09-18 | 深圳市熙锦科技发展有限公司 | The rechargeable battery of built-in Wireless charging coil |
| WO2019223488A1 (en) * | 2018-05-22 | 2019-11-28 | 华为技术有限公司 | Battery electrode sheet and preparation method therefor, battery management method and related apparatus |
| WO2020011072A1 (en) * | 2018-07-10 | 2020-01-16 | 维沃移动通信有限公司 | Electronic device, wireless charging device, and wireless charging method |
| CN108923545A (en) * | 2018-07-10 | 2018-11-30 | 维沃移动通信有限公司 | A kind of electronic equipment, wireless charging device and wireless charging method |
| US11527914B2 (en) | 2018-07-10 | 2022-12-13 | Vivo Mobile Communication Co., Ltd. | Electronic device, wireless charging device, and wireless charging method |
| CN110682815A (en) * | 2019-09-29 | 2020-01-14 | 无锡市先知动力科技有限公司 | Wireless charging device of electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102544615B (en) | 2014-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102544615B (en) | Wireless charging battery | |
| CN208796795U (en) | Coil block | |
| KR101823542B1 (en) | Electromagnetic booster for wireless charge and method for producing same | |
| US9209627B2 (en) | Wireless power supply system and multi-layer shim assembly | |
| CN104246925B (en) | For the high current of power transmission application, the printed circuit board coil of low ESR | |
| CN105405578B (en) | Shell and electronic device including the shell | |
| CN204424454U (en) | Coil device and antenna assembly | |
| CN103515698A (en) | NFC (Near Field Communication) antenna and electronic equipment | |
| CN101681719A (en) | Non-contact power transmitting device and method for fabricating its secondary side | |
| CN202797268U (en) | NFC antenna and electronic equipment | |
| CN107078556A (en) | The segmented conductive bonnet transmitted for wireless power | |
| CN104184217A (en) | Induction coil for wireless electric energy transmission, manufacture method, and wireless charging system | |
| US11177555B2 (en) | Back cover for portable terminal and back cover-integrated antenna module including the same | |
| CN206180117U (en) | Antenna device, and electronic device | |
| KR20140034148A (en) | Wireless antenna module and method for producing same | |
| CN206250195U (en) | A kind of OLED display | |
| CN202948464U (en) | Biological recognition wireless charging ultra-thin active electronic label | |
| CN208077720U (en) | Inductor | |
| CN105845382A (en) | Magnetic sheet and coil assembly including same | |
| CN206313541U (en) | Electronic installation and its glass cover-plate | |
| CN201556524U (en) | Electronic type current transformer with PCB Rockwell coil | |
| CN219831842U (en) | Non-contact smart card for preventing chip from being damaged by eddy-current thermal shock | |
| CN206314128U (en) | Electronic installation and its glass cover-plate | |
| CN103715469A (en) | Wireless rechargeable battery | |
| CN209870128U (en) | Wireless charging coil shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150929 Address after: 266111, 100, Torch Road, Qingdao hi tech Zone, Shandong, C, 209 Patentee after: Li Dan Address before: 201100 Minhang District Lotus Road, Lane 1288, room 3, No. 401, room Patentee before: Li Peng |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151203 Address after: 266111 Shandong province Qingdao City torch high tech Zone Road No. 100 Bangkok maxspace C-209 Patentee after: QINGDAO LU YU ENERGY TECHNOLOGY CO., LTD. Address before: 266111, 100, Torch Road, Qingdao hi tech Zone, Shandong, C, 209 Patentee before: Li Dan |