CN206650505U - Wireless charging receiving side inductance module, reception device, electronic equipment and protective case - Google Patents
Wireless charging receiving side inductance module, reception device, electronic equipment and protective case Download PDFInfo
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- CN206650505U CN206650505U CN201720103481.8U CN201720103481U CN206650505U CN 206650505 U CN206650505 U CN 206650505U CN 201720103481 U CN201720103481 U CN 201720103481U CN 206650505 U CN206650505 U CN 206650505U
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- inductance
- circuit
- wireless charging
- conversion
- voltage
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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
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- 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
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- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of inductance module, reception device, electronic equipment and protective case based on wireless charging receiving side, the inductance module includes：Body, and at least two inductance；Wherein, the body is tabular, and described two inductance are respectively the inductance in receiving circuit, referred to as receive inductance；With the inductance in voltage conversion circuit, referred to as change inductance；The reception inductance and conversion inductance are arranged at the same side of the body or are respectively arranged at the both sides of the body；The coil of the coil for receiving inductance and the conversion inductance is so that from inside to outside or from outside to inside, the mode along the body surface layer by layer around fitting is fixed on the body；The binding post for receiving inductance is connected with the corresponding receiving circuit；The binding post of the conversion inductance is connected with the corresponding voltage conversion circuit；So that the thickness of wireless charging receiving side reduces, it is easier to the combination between the wireless receiving charged side and electronic equipment.
Description
Technical field
The present invention relates to wireless power transportation art, and in particular to a kind of inductance module based on wireless charging receiving side,
Wireless charging receiver, mobile electronic device and a kind of protective case.
Background technology
Wireless charging technology (Wireless charging technology；Wireless charge
Technology), wireless power transmission technology is come from, wireless charging is frequently with induction.It is so-called it is induction be logical
Cross send and receive end respectively have a coil, transmitting terminal coil generating electromagnetic signal, the electricity of the coil-induced transmitting terminal of receiving terminal
Magnetic signal charges so as to produce electric current to the battery of equipment.
Qi is the standardization body of wireless charging technology --- wireless charging alliance (Wireless Power
Consortium, abbreviation WPC).The WPC1.1.2 technical standards of tissue issue in 2013 can be electronic equipment 5W (5V1A)
Electric flux, electronic equipment fast charge demand can not be met.The WPC1.2.2 technical standards of tissue issue in 2016 can be electronics
Equipment 15W electric fluxs.Ai Diti companies of the U.S. (Integrated Device Technology, Inc. abbreviation IDT) 2016
The P9221-RAHGI wireless chargings of bottom issue receive integrated circuit, it then follows WPC1.2.2 technical standards, maximum output electric energy are
15W, voltage-current characteristic show as 12V × 1.25A=15W.The fast charge standard of main flow has five kinds at present：USB standard, asterism
Standard, apple standard, high pass standard, MTK standards, power demand such as following table：
Because wireless charging characteristics of output power is high voltage low current, input power property requirements are mostly low in upper table
Voltage high-current, so needing to add switch direct current conversion circuit, the charge protocol of various versions in upper table could be matched.
Switch DC voltage translation circuit-include three kinds of topologys：1, switch DC Buck conversion circuit (Buck)；2, open
Close DC voltage booster circuit (Boost)；3, buck or boost switch direct current conversion circuit (Buck-Boost).In wireless charging electricity
Generally preferable switch DC Buck conversion circuit (Buck) in road or conventional charge circuits.
Conversion inductance effect in switch DC buck change-over circuit (Buck) is when the MOS switch in circuit is closed
Maintain output current, therefore, what the inductance coil in change-over circuit was necessarily present in change-over circuit.
The concussion frequency of general common change-over circuit is 500KHZ-1MHZ, considers the redundancy on Power Management Design, conversion electricity
Sense can typically select to be integrally formed 2.2uh inductance, and rated current is at least above 3.5A, conventional encapsulation：Long 6mm, wide 6mm are high
2mm.Inductance coil in change-over circuit is accomplished that 1.2mm height is more difficult, plus PCB (circuit board) thickness 0.4mm, electricity
The height of voltage conversion circuit part is routinely 2.4mm, can accomplish 1.6mm.And thickness of the prior art causes wireless charging
Receiver can not make the normal charges such as mobile phone back splint or leather sheath and/or fast charge scheme, reason：
On the one hand, the thickness of back splint or leather sheath in itself in addition based on the thickness, can make back splint or leather sheath thickness thicker,
And then influence the aesthetics of product and will also result in certain trouble for the use of user, such as：Carry, operation etc. can all produce
Raw puzzlement.
On the other hand, when the circuit board of wireless charging being put into interior of mobile phone and realizing normal charge or fast charge, switch DC
Voltage conversion circuit and its inductance coil must be put into the circuit board top of mobile phone or flat board, and due to inductance coil height compared with
Height, therefore, it is impossible to which the receiving terminal of wireless charging to be made to the part of comparison independence, and then needed to mobile phone to reduce thickness
Or the scheme of the former design circuit of flat board will compare big change, and then increase cost.
How a kind of height for reducing inductance coil is provided, the inductance in wireless fast charge is made to independent inductance module,
And then reduce the technology that mobile phone back splint or the thickness of leather sheath or wireless charging receiver need to solve as those skilled in the art
Problem.
Utility model content
The present invention provides a kind of inductance module based on wireless charging receiving side, is connect with solving wireless charging in the prior art
Receive the problem of side thickness is thicker.
The present invention provides a kind of inductance module based on wireless charging receiving side, including：Body, and at least two electricity
Sense；
Wherein, the body is tabular, and described two inductance are respectively the inductance in receiving circuit, referred to as receive inductance；
With the inductance in voltage conversion circuit, referred to as change inductance；The reception inductance and conversion inductance are arranged at the same of the body
Side or the both sides for being respectively arranged at the body；The coil of the coil for receiving inductance and the conversion inductance is with from introversion
Outside or from outside to inside, the mode along the body surface layer by layer around fitting is fixed on the body；
The binding post for receiving inductance is connected with the corresponding receiving circuit；The wiring of the conversion inductance
Terminal is connected with the corresponding voltage conversion circuit.
Preferably, including：Separate gap, the cut-off Connexin or the discrete reception inductance and described of being arranged at
Between conversion inductance.
Preferably, the body is formed using soft magnetic materials, and thickness range is more than or equal to 0.06mm, is less than or equal to
0.8mm。
Preferably, including：Upper lid, it is covered in the top of the conversion inductance.
Preferably, it is described it is upper lid be structure as a whole with the body, specially it is described it is upper cover from the edge of the body to
The top extension of the conversion inductance, and end after all coverings conversion inductance.
Preferably, including：Fin, is arranged at the one or both sides of the body, the reception inductance and/or described
Inductance is changed between the fin and the body.
Preferably, conduit is provided with the body, and the reception inductance and/or the conversion inductance can be embedded in
In the conduit.
The present invention also provides a kind of wireless charging receiver wireless charging receiver, including：It is based on nothing described above
The inductance module of micro USB electricity receiving side, wireless charging receiving circuit and voltage conversion circuit；
Wherein, the reception inductance is connected with the wireless receiving circuit；The conversion inductance and voltage conversion electricity
Road connects；The reception inductance of the wireless receiving circuit is corresponding with the emission inductance in wireless charging radiating circuit, the nothing
The electromagnetic energy of micro USB electricity radiating circuit and the wireless receiving circuit coordinate by caused electromagnetic energy be converted to electric flux export to
The voltage conversion circuit, the voltage conversion circuit is to being that electronic equipment to be charged charges after the electric energy conversion；
The voltage-current characteristic of the input electric flux of the voltage conversion circuit meets wireless receiving circuit output electricity
The voltage-current characteristic of energy；The voltage-current characteristic of electric flux after the voltage conversion circuit output conversion meets to be charged
Electronic equipment inputing power amount voltage-current characteristic.
Preferably, the wireless charging receiving circuit and the voltage conversion circuit are integrated on same circuit board, or,
The wireless charging receiving circuit and the voltage conversion circuit are respectively arranged on two circuit boards；
It is described wireless when the wireless charging receiving circuit and the voltage conversion circuit are integrated on same circuit board
Charging receiving circuit includes：Rectification circuit, filter circuit, control chip and voltage conversion circuit；
The electric flux is delivered in the filter circuit through the rectification circuit, and the electric flux is through the filter circuit
Transmitted after filtering process into the voltage conversion circuit, the voltage conversion circuit exports according to the control of the control chip
Electric flux after corresponding conversion；
It is described when the wireless charging receiving circuit and the voltage conversion circuit are respectively arranged on two circuit boards
Wireless charging circuit board for receiving includes：The rectification circuit, the filter circuit, mu balanced circuit and the control chip；
The electric flux is delivered in the filter circuit through the rectification circuit, and the electric flux is through the filter circuit
Transmitted after filtering process into the mu balanced circuit, it is steady that the control chip controls the mu balanced circuit to carry out the electric flux
Pressure processing exports the electric flux after corresponding voltage stabilizing, and the electric flux after the voltage stabilizing is converted into described through the voltage conversion circuit
The electric flux of control chip control is simultaneously delivered to the electronic equipment；
The electric flux includes：Electric current and/or voltage.
Preferably, including：Fast charge identification circuit, the fast charge identification circuit is according to the charging of the electronic equipment of identification
Agreement, the electric flux of the voltage conversion circuit output is controlled by the control chip.
The present invention also provides a kind of mobile electronic device, is covered after mobile electronic device and is provided with nothing as described above
Line charging receiver, the output port of the wireless charging receiver and the default input port of the mobile electronic device
Match, the wireless charging receiver provides rechargeable electrical energy amount to the mobile electronic device.
The present invention also provides a kind of protective case of mobile electronic device, including：The body that can be sheathed on electronic equipment,
And wireless charging receiver as described above is provided with body.
Compared with prior art, a kind of inductance module based on wireless charging receiving side provided by the invention, electricity will be received
The mode of the coil of sense and the coil of conversion inductance respectively along the body surface layer by layer around fitting is fixed on the body,
And the coil of each layer is highly consistent in a longitudinal direction, on the one hand inductance module provided by the invention can reduce described turn
Change the coil height of inductance so that wireless charging receiving side thickness reduce, it is easier to the wireless receiving charged side with
Combination between electronic equipment, avoid thickness thicker and occur unsightly and it is not convenient the defects of；On the other hand, Neng Gouwu
The circuit board of electronic equipment need to be modified.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly with technical scheme of the prior art, to embodiment and will show below
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of inductance module based on wireless charging receiving side provided by the invention；
Fig. 2 be in Fig. 1 A to schematic diagram；
Fig. 3 is a kind of structural representation of wireless charging receiver embodiment provided by the invention；
Fig. 4 is that the circuit structure that mu balanced circuit is omitted in a kind of wireless charging receiver embodiment provided by the invention is opened up
Flutter figure；
Fig. 5 is that the circuit structure with mu balanced circuit is opened up in a kind of wireless charging receiver embodiment provided by the invention
Flutter figure.
Figure number explanation
Body 10；Inductance 11 is received, receives inductance binding post 111；Change inductance 12, conversion inductance binding post 121；
Separate gap 13；Upper lid 14；Fin 15；Circuit board 16, wireless charging receiving circuit 161, voltage conversion circuit 162, fast charge
Identification circuit 163, output port 164.
Embodiment
Many details are elaborated in the following description in order to fully understand the present invention.But the present invention can be with
Much it is different from other manner described here to implement, those skilled in the art can be in the situation without prejudice to intension of the present invention
Under do similar popularization, therefore the present invention is not limited to the specific embodiments disclosed below.
The present invention provides a kind of inductance module based on wireless charging receiving side, and the inductance module has relatively thin thickness,
The inductance module can be matched with the circuit of wireless charging receiving side and be connected, realize the function of quick charge, by described in
When inductance module connects as one structure with electronic product so that the thickness of electronic product will not also increase.
It refer to shown in Fig. 1, Fig. 1 is a kind of structure of inductance module based on wireless charging receiving side provided by the invention
Schematic diagram.
A kind of inductance module based on wireless charging receiving side provided by the invention includes：
Body 10, and at least two inductance, wherein, the body 10 is tabular, and described two inductance are respectively wireless
Inductance in the receiving circuit 161 that charges, referred to as receive inductance 11；With the inductance in voltage conversion circuit 162, referred to as conversion electricity
Sense 12；The reception inductance 11 and conversion inductance 12 are arranged at the same side of the body 10 or are respectively arranged at the body
10 both sides；The coil of the coil for receiving inductance 11 and the conversion inductance 12 is with from inside to outside or from outside to inside, along institute
The mode that the surface layer of body 10 is stated around fitting is fixed on the body 10, that is to say, that it is in spiral shell that the coil, which can be,
Rotation shape is simultaneously bonded the set-up mode on the surface of body 10, specifically as shown in figure 1, a binding post of coil pastes from inside to outside
Close the body 10 to enclose around one, continue to wrap around the second circle in inner ring, the like, so as to form coil fitting and institute
State the surface of body 10 and gabarit or have the form inside contracted successively outside to inside successively from inside to outside.
It should be noted that the height for receiving 11 each layer of inductance can be consistent, the height of conversion 12 each layer of inductance
Degree can also be consistent, and the height of the reception inductance 11 and the conversion inductance 12 can be with identical or different, height described herein
Degree can be the height on the vertical body direction.
In this embodiment, it is described to receive inductance 11 and described the same side changed inductance 12 and be arranged at the body 10, institute
Two binding posts of two binding posts for receiving inductance 11 and the conversion inductance 12 are stated, bearing of trend is identical.
It is understood that when the reception inductance 11 and the conversion inductance 12 are arranged at the same of the body 10
During side, two binding posts (receiving inductance binding post 111 and conversion inductance binding post 121) of the two can be to identical
Direction extends, and can also extend to different directions；When the reception inductance 11 and the conversion inductance 12 are respectively arranged at institute
When stating the both sides of body 10, the reception inductance binding post 111 and the conversion inductance binding post 121 can be to identicals
Direction extends, or extends to different directions.
The reception inductance binding post 111 and the conversion inductance binding post 121 are equidirectional extension or difference
Direction extension can also be actually needed determination.
Inductance binding post 111 is received with the corresponding receiving circuit to be connected；Change inductance binding post 121 with
The corresponding voltage conversion circuit 162 is connected.
In this embodiment, the body 10 is formed using the soft magnetic materials of tabular, so-called soft magnetic materials (soft
Magnetic material) there is the magnetic material of low-coercivity and high magnetic permeability.Soft magnetic materials is easy to magnetize, and is also easy to move back
Magnetic, it is widely used in electrical equipment and electronic equipment.The thickness range of the soft magnetic materials can be more than or equal to 0.06mm, it is small
In equal to 0.8mm.
What the soft magnetic materials application was most at present is ferro-silicium (silicon steel sheet) and various soft magnetic ferrites etc..In nothing
The current technology of micro USB electrical domain mainly uses MnZn and nickel zinc and iron based nano crystal material in ferrite class, preferable to reach
Thickness, the body 10 in this implementation is illustrated using iron based nano crystal material, because iron based nano crystal material can be done
To most thin thickness 0.13mm.
The inductance 11 that receives is the inductance coil in the wireless charging receiving circuit of wireless charging receiving side, the reception
Inductance 11 is in two 111 positions corresponding with the receiving circuit of reception inductance binding post that the body 10 extends
Connection is put, in this embodiment, receive inductance 11 two receive inductance binding post 111 and receive electricity with the wireless charging
Rectification circuit connection in road.
The inductance 12 of changing is the inductance coil in wireless charging receiving side voltage conversion circuit 162, the conversion electricity
Two binding posts that sense 12 is extended in the body 10 are connected with the voltage conversion circuit 162, and electric energy is arrived to reception
Measure conversion process.
When the reception inductance 11 and the conversion inductance 12 are located at the same side of the body 10, the body is distributed in
10 different zones, it is to be understood that the reception inductance 11 and the conversion inductance 12 can also be respectively distributed to described
The both sides of body 10, such as：The upside for receiving inductance 11 and being located at the body 10, the conversion inductance 12 is positioned at described
The opposite side of body 10, i.e.,：The reception inductance 11 and described change between inductance 12 as the body 10.
The coil of the coil for receiving inductance 11 and the conversion inductance 12 can use copper coil, and the copper coil can
To be enamel-covered wire or metal foil etc. or FPC (flexible PCB 16).The FPC double-sided cloths copper wire can accomplish 0.2mm, two-sided
Cloth copper wire can reduce resistance.
The problem of to avoid that mutual crosstalk occurs between the reception inductance 11 and the conversion inductance 12, in the reception
Cut-off gap 13 is provided between inductance 11 and the conversion inductance 12, gap 13 is continuous or discrete is arranged at for the cut-off
Between the reception inductance 11 and the conversion inductance 12.In this embodiment, cut-off gap can be set using continuous mode
13。
The cut-off gap 13 can be by the body 10 between the reception inductance 11 and the conversion inductance 12
Partition grooves are set, filling resistance magnetic material in it.
It should be noted that when the reception inductance 11 and the conversion inductance 12 are located at described 10 the same side of body,
The cut-off gap 13 can be arranged on around the conversion inductance 12, by the reception inductance 11 and the conversion inductance 12
Two regions part is divided on the body 10；It is located at the body in the reception inductance 11 and the conversion inductance 12
During 10 not homonymy, it is convenient to omit the cut-off gap 13, naturally it is also possible to according to the reception inductance 11 and conversion inductance 12
Layout the position in the cut-off gap 13 is set, that is to say, that as long as the setting in the cut-off gap 13 can avoid it is described
Receive and produce crosstalk between inductance 11 and the conversion inductance 12.
It is understood that in the case of crosstalk is not present between the reception inductance 11 and the conversion inductance 12
(such as：The two spacing is larger), the cut-off gap 13 can omit.
To avoid the conversion 12 external radiated electromagnetic wave of inductance, the electricity provided by the invention based on wireless charging receiving side
Sense module also includes：Upper lid 14, the upper lid 14 are covered in the top of conversion inductance 12, it is external to obstruct the conversion inductance 12
Caused radiated electromagnetic wave.The upper lid 14 is structure as a whole with the body 10, and specially described upper lid 14 is from the body
The top of 10 edge to the conversion inductance 12 extends, and ends after all coverings conversion inductance 12.
It is understood that the upper lid 14 and the body 10 can also be Split type structure, i.e.,：The upper lid 14 and institute
It is respectively individual components to state body 10, and the upper lid 14 is individually covered on the conversion inductance 12.
In this embodiment, the upper lid 14 also use with the identical material of body 10, i.e.,：Soft magnetic materials, because soft
Magnetic material is easy to magnetize, and is also easy to demagnetize, and after the upper lid 14 is covered in conversion inductance 12, can eliminate described turn
Change the externally caused electromagnetic wave of inductance 12.
To improve the thermal diffusivity of the inductance module based on wireless charging receiving side of the invention, in the side of the body 10 or
Both sides are provided with fin 15, and the reception inductance 11 and/or the conversion inductance 12 are located at the fin 15 and described
Between body 10.
The fin 15 can select graphite heat radiation fin, and the graphite heat radiation fin is a kind of brand-new heat conduction and heat radiation material
Material, there is unique crystal grain orientation, it is laminar structured to be well adapted for any surface, shielding along both direction uniform heat conduction
Thermal source and the performance that consumer electronics product is improved while component.The thickness of the graphite heat radiation fin typically 0.03-2mm it
Between, area can be identical with the area of body 10 or less than the area of body 10, when the area of the graphite heat radiation fin
During less than 10 area of body, the graphite heat radiation fin can be covered on the body 10 relatively described reception inductance 11
And/or described switching (conversion) inductance.
In this implementation, the thickness of the graphite heat radiation fin can choose 0.15mm.
In this embodiment, when the reception inductance 11 and the conversion inductance 12 are arranged at described 10 the same side of body, institute
State fin 15 and be arranged at the side of the body 10 away from the reception inductance 11 and the conversion inductance 12.
It is understood that when the fin 15 is arranged at the both sides of the body 10, the fin 15 covers
In having on the body 10 on the reception inductance 11 and the upper lid 14, and covering is another with the body 10
Side.
In this embodiment, the reception inductance 11, conversion inductance 12, upper lid 14, cut-off gap 13 and fin 15 can
It is fixed in a manner of by adhesion on the body 10, inductance 11, conversion inductance 12, upper lid 14, cut-off gap 13 will be received
And the grade of fin 15 composition inductance module.
The one side of fin 15 can be by the heat diffusion of the reception inductance 11 and/or the conversion inductance 12；
On the other hand, when being provided with the cut-off gap 13 on the body 10, if cut-off gap 13 is on the body 10
Cut-off gap 13 is directly set using fracture mode between switching inductance on reception inductance 11 and the body 10, that is,
Say, the body 10 is separated into two pieces by the cut-off gap 13；The fin 15 can be to the reception inductance 11
The body 10 and with it is described conversion inductance 12 the body 10 overall structure realize reinforce, make the body 10 more
It is firm, is not easy to disconnect.
It is to be appreciated that when the cut-off gap 13 is using non-fracture mode, such as：By setting partition grooves, in institute
State filling resistance magnetic material, the fin 15 in partition grooves preferably can also reinforce to the body 10.Between the cut-off
Gap 13 can also be set using breaking type mode, i.e.,：The conversion inductance 12 and the reception inductance 11 is separately positioned, it
The two is fixed as one by heat sink 15 afterwards, and pre-sets certain intervals therebetween as cut-off gap, Zhi Houzai
It is fixed as one.
Therefore, the set-up mode in heretofore described cut-off gap 13 has a lot, above are only for example, in this implementation
In, can be by the way of non-breaking type.
Further to improve the steadiness of the body, especially between the reception inductance 11 and conversion inductance 12
When being provided with cut-off gap 13, it can also include：Stiffening piece (not shown), it will further receive the region of inductance 11 and conversion inductance
12 regions are firm together.The stiffening piece is located at the below or above of fin 15.
In this embodiment, the stiffening piece can be PC materials, specifically, can be first by the fin and the stiffening piece
Fit together, on the side with the fin 15 to be covered in the reception inductance 11 and/or conversion inductance 12.
The stiffening piece can match with the fin, only can also set the stiffening piece at the cut-off gap 13,
Now as long as the shape size of the stiffening piece disclosure satisfy that the body between reception inductance 11 and the switching inductance 12 is steady
Solid be fixed together, such as：Reinforcing plate shape can use and the cut-off gap shape identical structure, width energy
Enough it is more than the gap width in the cut-off gap.
It is understood that in the present invention, the fin 15 and stiffening piece can not simultaneously be present, can also be simultaneously
In the presence of that is,：Stiffening piece is selected when omitting fin, fin is selected when omitting stiffening piece, or the two is omitted simultaneously, or
The two is enabled simultaneously.
Preferably to fix the reception inductance 11 and/or conversion inductance 12, and reduce the reception inductance 11 and conversion
Inductance 12 is located at the whole height after the body 10, and conduit, the reception inductance 11 can also be set on the body 10
And/or the conversion inductance 12 can be embedded in the conduit.
In this embodiment, the body 10 in the inductance module provided by the invention based on wireless charging receiving side, connect
Receive inductance 11, conversion inductance 12, fin 15, cut-off gap 13 and upper lid 14 etc. can by two sides glue bond, each layer
What thickness can be chosen respectively is：
The 0.15mm of fin 15, body 10 (iron based nano crystal) 0.13mm, upper lid 14 (iron based nano crystal) 0.13mm, connect
Receive inductance 11 and conversion inductance 12 (FPC) 0.2mm；Changing into maximum gauge at inductance in inductance module, thickness is：0.15mm
(fin)+0.13mm (nanocrystalline)+0.2mm (FPC)+0.13 (nanocrystalline)=0.61mm；Wherein, inductance part is received not having
There is upper lid, thickness is：0.15mm (fin)+0.13mm (nanocrystalline)+0.2mm (FPC)=0.48mm；For more preferable radiating, use
Each layer of two sides gemel connection of graphite substrate, maximum gauge can be controlled in 0.8mm or so.
It should be noted that when including stiffening piece, the thickness of the thickness of the stiffening piece and the fin can phase
Together, i.e.,：General thickness is plus stiffening piece 0.15mm thickness.
In the case where carrying out wireless charging to electronic equipment, larger power output is realized by booster tension, however,
While booster tension, the coil of conversion inductance 12 of voltage conversion circuit 162 causes wireless charging to connect due to highly higher
It is higher to receive the thickness of device, a kind of inductance module based on wireless charging receiving side provided by the invention, by wirelessly being connect described
The coil for receiving the conversion inductance 12 in the coil and voltage conversion circuit 162 of the reception inductance 11 in circuit is individually combined,
By the two as on the body 10, the coil of the coil for receiving inductance 11 and the conversion inductance 12 is in the body 10
Surface on form form circular layer by layer, coil circular layer by layer is highly consistent in a longitudinal direction so that form electricity
Sense module has thinner thickness, to reduce the integral thickness of wireless charging receiving side.
Illustrate above for a kind of structure of inductance module based on wireless charging receiving side provided by the invention, based on above-mentioned
Content, the present invention also provide a kind of wireless charging receiver, refer to shown in Fig. 3 to Fig. 5, Fig. 3 is provided by the invention one
The structural representation of kind wireless charging receiver embodiment；Fig. 4 is that a kind of wireless charging receiver provided by the invention is real
Apply the circuit structure topological diagram that example omits mu balanced circuit；Fig. 5 is a kind of wireless charging receiver embodiment provided by the invention
Circuit structure topological diagram with mu balanced circuit.
The device includes：The above-mentioned inductance module based on wireless charging receiving side, wireless charging receiving circuit 161 and
Voltage conversion circuit 162；
Wherein, the reception inductance 11 is connected with the wireless receiving circuit；The conversion inductance 12 turns with the voltage
Circuit 162 is changed to connect；The coil of the reception inductance 11 of the wireless receiving circuit and the transmitting electricity in wireless charging radiating circuit
The coil of sense is relative, and the electromagnetic energy from the wireless charging radiating circuit of reception is converted into electric flux and sent to described
Voltage conversion circuit 162, the voltage conversion circuit 162 export the electric flux after conversion, the voltage conversion circuit 162
According to the output electric flux charging voltage is provided for electronic equipment to be charged.That is, the coil for receiving inductance 11 can
Receive electromagnetic energy and the electromagnetic energy is rectified into electric flux；And the communication with radiating circuit is realized by control chip.
In the coil for receiving inductance 11, energy is electromagnetic energy (alternating electromagnetism energy or alternating electromagnetic energy), launches the more of electromagnetic energy
It is few that emitting side is notified by receiving side.
The voltage-current characteristic of the input electric flux of the voltage conversion circuit meets wireless receiving circuit output electricity
The voltage-current characteristic of energy；The voltage-current characteristic of electric flux after the voltage conversion circuit output conversion meets to be charged
Electronic equipment inputing power amount voltage-current characteristic.
It should be noted that the electric flux in the present invention can include：Electric current and/or voltage.
The wireless charging receiving circuit 161 and the voltage conversion circuit 162 can be integrated on same circuit board 16,
Or the wireless charging receiving circuit 161 and the voltage conversion circuit 162 can be respectively arranged at two circuit boards 16
On, i.e.,：The plate 16 of wireless charging receiving circuit 161 and the plate 16 of voltage conversion circuit 162；
As shown in figure 4, when the wireless charging receiving circuit 161 and the voltage conversion circuit 162 are integrated in same electricity
When on road plate 16, the wireless charging receiving circuit 161 includes：Rectification circuit, filter circuit, control chip and voltage conversion electricity
Road 162；
Electric flux is delivered in the filter circuit through the rectification circuit, and the electric flux filters through the filter circuit
Transmitted after processing into the voltage conversion circuit 162, the voltage conversion circuit 162 is defeated according to the control of the control chip
Go out corresponding electric flux.
As shown in figure 5, when the wireless charging receiving circuit 161 and the voltage conversion circuit 162 are respectively arranged at two
When on individual circuit board 16, i.e.,：The plate 16 of wireless charging receiving circuit 161 and the plate 16 of voltage conversion circuit 162.The wireless charging
The plate 16 of receiving circuit 161 includes：The rectification circuit, the filter circuit, mu balanced circuit and the control chip.
Electric flux is delivered in the filter circuit through the rectification circuit, and the electric flux filters through the filter circuit
Transmitted after processing into the mu balanced circuit, the control chip controls the mu balanced circuit to carry out at voltage stabilizing the electric flux
Reason exports the electric flux after corresponding voltage stabilizing, and the plate 16 of voltage conversion circuit 162 receives the electric flux after the voltage stabilizing, and
Electric flux that the electric energy conversion is controlled into the control chip is simultaneously delivered to the electronic equipment.
In this embodiment, the rectification circuit is realized by ideal diode, and the ideal diode rectification refers to be controlled
The MOS of system realizes rectification, completes the work of similar diode, and then accomplishes high efficiency.Switching process mainly turns alternating current
Direct current is changed to, the direct current is to be stablized by the filter circuit.Galvanic current is high voltage low current, institute
The voltage after rectifying and wave-filtering can be stablized by stating mu balanced circuit；And by mu balanced circuit, the control in wireless charging receiving circuit 161
Coremaking piece can know that wireless charging receiver needs to export great electric energy power, pass through the communication with radiating circuit, control
The power output (size of transmitting electromagnetic energy) of radiating circuit processed.
It is to be appreciated that when the wireless charging receiving circuit 161 and the voltage conversion circuit 162 are integrated in same electricity
When on road plate 16, the mu balanced circuit can omit, i.e.,：Voltage conversion circuit 162 is directly entered after filtering, wireless charging receives
Device can know the electric energy watt level that needs export by voltage conversion circuit.
To realize the quick charge of electronic equipment, a kind of wireless charging receiver provided by the invention also includes：Fast charge
Identification circuit 163, the fast charge identification circuit 163 pass through the control according to the charge protocol of the electronic equipment of identification
The output voltage of voltage conversion circuit 162 described in chip controls, so as to provide the voltage signal of fast charge for electronic equipment.
Fast charge identification circuit 163 refers to the fast charge agreement that can recognize that the mobile electronic devices such as mobile phone or flat board are use,
Such as：The fast charge agreement of apple is 5V2.4A, 5V2A；(millet 4 is Micro USB to QC2.0 the and QC3.0 fast charges agreement of high pass
Interface, using QC2.0 agreements；Millet 5 and 5S are USB TYPEC interfaces, using QC3.0 agreements)；The fast charge agreement of Huawei；
MTK fast charge agreements etc..
Fast charge identification circuit 163 knows the charge requirement of mobile device according to the charge protocol of identification, generally has two kinds
Situation：
1st, when the electric energy provided in wireless charging receiver meets the power needed for fast charge, such as：Wireless charging receives
Device can export 12V × 1.25A=15W, and estimation voltage conversion circuit efficiency is 90%, and voltage conversion circuit can export
13.5W electric energy, electronic equipment are assumed to be the mobile phone of millet 4, and identification circuit identifies that the mobile phone is QC2.0 fast charge agreements；According to QC2.0
Fast charge agreement, it is 9V to set voltage conversion circuit output voltage, and mobile phone charging current is 1.2A, with 9V × 1.2A=10.8W work(
Rate realizes the mobile phone wireless fast charge of millet 4.
2nd, when the electric energy provided in wireless charging receiver is unsatisfactory for power needed for fast charge, fast charge identification circuit is passed through
163, held consultation with electronic equipments such as mobile phones, by way of the output voltage and/or electric current that change voltage conversion circuit 162
Realize in the case of no more than wireless charging peak power output, meet the fast charge demand of mobile phone as far as possible.Such as：The He of millet 5
5S mobile phones use high pass QC3.0 fast charge schemes, and nominal maximum fast charge power 18W, estimation voltage conversion circuit efficiency is 90%, electricity
Voltage conversion circuit can export 13.5W electric energy, and the wireless charging circuit and voltage conversion circuit that the demand of fast charge has exceeded are most
High-power output.To when there is this kind of situation, two schemes can be used to solve, Yi Zhongshi：Using QC3.0 to QC2.0 to
Lower compatibility, when fast charge identifies, by the control of control circuit, do not allow handset identity QC3.0, only identify QC2.0 agreements with 9V ×
1.2A=10.8W realizes fast charge, and this scheme is simple, but the efficiency of wireless fast charge scheme is not used into maximization；It is another
Kind be, it is appropriate to reduce output voltage and/or limitation output current, so as to reduce the charge power of mobile phone, such as by voltage reduce with
Electric current is limited, 6V × 2.25A=13.5W fast charges is realized, QC3.0 agreements, a voltage gear, electronic equipment is set per 0.2V
According to the charging environment of surrounding, most suitable charging voltage value is automatically adjusted to, most suitable charge power is realized, utilizes QC3.0
This characteristic, it is possible to achieve by the efficiency of wireless fast charge scheme using maximizing.
It is understood that the specific implementation of fast charge needs the charge management circuit of fast charge identification circuit 163 and mobile phone terminal,
Handled when consulting, realize the fast charge demand for meeting mobile phone as far as possible in the case of no more than wireless charging peak power output.
Based on the above, the present invention also provides a kind of mobile electronic device, setting is covered after the mobile electronic device
There is above-mentioned wireless charging receiver, the output port 164 of the wireless charging receiver (is referred to as mobile electron to set
Standby interface) match with the default input port of the mobile electronic device, the wireless charging receiver is to the shifting
Dynamic electronic equipment provides charging voltage.
Based on the above, the present invention also provides a kind of protective case of mobile electronic device, including：Movement can be sheathed on
Body on electronic equipment, the set are provided with wireless charging receiver as described above in vivo；The back splint housing and institute
It can be carried after stating mobile electronic device Matching installation by the wireless charging receiver in it to the sub- equipment of the moving photoconductor
For charging voltage.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification, therefore the guarantor of the present invention
Shield scope should be defined by the scope that the claims in the present invention are defined.
Claims (12)
- A kind of 1. inductance module based on wireless charging receiving side, it is characterised in that including：Body, and at least two inductance；Wherein, the body is tabular, and described two inductance are respectively the inductance in receiving circuit, referred to as receive inductance；With electricity Inductance in voltage conversion circuit, referred to as changes inductance；It is described to receive inductance and change the same side that inductance is arranged at the body Or it is respectively arranged at the both sides of the body；The coil of the coil for receiving inductance and the conversion inductance with from inside to outside or From outside to inside, the mode along the body surface layer by layer around fitting is fixed on the body；The binding post for receiving inductance is connected with the corresponding receiving circuit；The binding post of the conversion inductance It is connected with the corresponding voltage conversion circuit.
- 2. the inductance module according to claim 1 based on wireless charging receiving side, it is characterised in that including：Between cut-off Gap, the cut-off Connexin or discrete is arranged between the reception inductance and the conversion inductance.
- 3. the inductance module according to claim 1 based on wireless charging receiving side, it is characterised in that the body uses Soft magnetic materials is formed, and thickness range is more than or equal to 0.06mm, less than or equal to 0.8mm.
- 4. the inductance module according to claim 1 based on wireless charging receiving side, it is characterised in that including：Upper lid, covers It is placed on the top of the conversion inductance.
- 5. the inductance module according to claim 4 based on wireless charging receiving side, it is characterised in that the upper lid and institute State body to be structure as a whole, top extension of the specially described upper lid from the edge of the body to the conversion inductance, and All end after the covering conversion inductance.
- 6. the inductance module according to claim 1 based on wireless charging receiving side, it is characterised in that including：Fin And/or stiffening piece, wherein, the fin is arranged at the one or both sides of the body, described to receive inductance and/or described turn Inductance is changed between the fin and the body；The stiffening piece is located at the one or both sides of the body, when described When the one or both sides of body are provided with the fin, the stiffening piece is located at the fin away from the reception inductance And/or the side of the conversion inductance.
- 7. the inductance module according to claim 1 based on wireless charging receiving side, it is characterised in that：On the body Conduit is provided with, the reception inductance and/or the conversion inductance can be embedded in the conduit.
- A kind of 8. wireless charging receiver, it is characterised in that including：Base as described in above-mentioned claim 1-7 any one In the inductance module of wireless charging receiving side, wireless charging receiving circuit and voltage conversion circuit；Wherein, the reception inductance is connected with the wireless receiving circuit；The conversion inductance connects with the voltage conversion circuit Connect；The reception inductance of the wireless receiving circuit is corresponding with the emission inductance in wireless charging radiating circuit, the wireless charging Caused electromagnetic energy is converted to electric flux with wireless receiving circuit cooperation and exported to described by the electromagnetic energy of electric radiating circuit Voltage conversion circuit, the voltage conversion circuit is to being that electronic equipment to be charged charges after the electric energy conversion；The voltage-current characteristic of the input electric flux of the voltage conversion circuit meets wireless receiving circuit output electric flux Voltage-current characteristic；The voltage-current characteristic of electric flux after the voltage conversion circuit output conversion meets electricity to be charged The voltage-current characteristic of sub- equipment inputing power amount.
- 9. wireless charging receiver according to claim 8, it is characterised in that：The wireless charging receiving circuit and institute Voltage conversion circuit is stated to be integrated on same circuit board, or, by the wireless charging receiving circuit and voltage conversion electricity Road is respectively arranged on two circuit boards；When the wireless charging receiving circuit and the voltage conversion circuit are integrated on same circuit board, the wireless charging Receiving circuit includes：Rectification circuit, filter circuit, control chip and voltage conversion circuit；The electric flux is delivered in the filter circuit through the rectification circuit, and the electric flux filters through the filter circuit Transmitted after processing into the voltage conversion circuit, the voltage conversion circuit exports corresponding according to the control of the control chip Electric flux after conversion；It is described wireless when the wireless charging receiving circuit and the voltage conversion circuit are respectively arranged on two circuit boards Charging circuit board for receiving includes：The rectification circuit, the filter circuit, mu balanced circuit and the control chip；The electric flux is delivered in the filter circuit through the rectification circuit, and the electric flux filters through the filter circuit Transmitted after processing into the mu balanced circuit, the control chip controls the mu balanced circuit to carry out at voltage stabilizing the electric flux Reason exports the electric flux after corresponding voltage stabilizing, and the electric flux after the voltage stabilizing is converted into the control through the voltage conversion circuit The electric flux of chip controls is simultaneously delivered to the electronic equipment；The electric flux includes：Electric current and/or voltage.
- 10. wireless charging receiver according to claim 9, it is characterised in that including：Fast charge identification circuit, it is described Fast charge identification circuit controls the voltage conversion according to the charge protocol of the electronic equipment of identification by the control chip The electric flux of circuit output.
- 11. a kind of mobile electronic device, it is characterised in that setting is covered after mobile electronic device just like claim 8-10 Wireless charging receiver described in any one, the output port of the wireless charging receiver are set with the mobile electron Standby default input port matches, and the wireless charging receiver provides rechargeable electrical energy amount to the mobile electronic device.
- A kind of 12. protective case of mobile electronic device, it is characterised in that including：The body that can be sheathed on electronic equipment, with And wireless charging receiver of the setting described in just like claim 8-10 any one on body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720103481.8U CN206650505U (en) | 2017-01-23 | 2017-01-23 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
| PCT/CN2018/072534 WO2018133749A1 (en) | 2017-01-23 | 2018-01-14 | Inductor module on wireless charging receiving side, receiving apparatus, electronic device, and protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720103481.8U CN206650505U (en) | 2017-01-23 | 2017-01-23 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206650505U true CN206650505U (en) | 2017-11-17 |
Family
ID=60282863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720103481.8U Expired - Fee Related CN206650505U (en) | 2017-01-23 | 2017-01-23 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206650505U (en) |
| WO (1) | WO2018133749A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133749A1 (en) * | 2017-01-23 | 2018-07-26 | 王丽 | Inductor module on wireless charging receiving side, receiving apparatus, electronic device, and protective cover |
| CN108347099A (en) * | 2017-01-23 | 2018-07-31 | 王丽 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
| WO2019154368A1 (en) * | 2018-02-09 | 2019-08-15 | 中兴通讯股份有限公司 | Charging apparatus, charging control apparatus, terminal device, and charging method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012244763A (en) * | 2011-05-19 | 2012-12-10 | Sony Corp | Power supply device, power supply system and electronic device |
| CN103219808A (en) * | 2013-04-22 | 2013-07-24 | 深圳市实佳电子有限公司 | Wireless charger receiver with good compatibility |
| CN103683431B (en) * | 2013-12-26 | 2016-06-15 | 深圳佰维存储科技有限公司 | Integrated packaging wireless charging device |
| CN204859243U (en) * | 2015-07-03 | 2015-12-09 | 东莞市伟博智能科技有限公司 | Take wireless cell -phone shell that charges of interface |
| CN105576849A (en) * | 2015-12-29 | 2016-05-11 | 江苏米孚自动化科技有限公司 | Resonant coupling based brushless rotating member power supply apparatus |
| CN206650505U (en) * | 2017-01-23 | 2017-11-17 | 王丽 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
-
2017
- 2017-01-23 CN CN201720103481.8U patent/CN206650505U/en not_active Expired - Fee Related
-
2018
- 2018-01-14 WO PCT/CN2018/072534 patent/WO2018133749A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133749A1 (en) * | 2017-01-23 | 2018-07-26 | 王丽 | Inductor module on wireless charging receiving side, receiving apparatus, electronic device, and protective cover |
| CN108347099A (en) * | 2017-01-23 | 2018-07-31 | 王丽 | Wireless charging receiving side inductance module, reception device, electronic equipment and protective case |
| WO2019154368A1 (en) * | 2018-02-09 | 2019-08-15 | 中兴通讯股份有限公司 | Charging apparatus, charging control apparatus, terminal device, and charging method |
| CN110138022A (en) * | 2018-02-09 | 2019-08-16 | 中兴通讯股份有限公司 | Charging unit, battery charge controller, terminal device and charging method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018133749A1 (en) | 2018-07-26 |
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