CN108258737A - The protective device of wireless charger - Google Patents
The protective device of wireless charger Download PDFInfo
- Publication number
- CN108258737A CN108258737A CN201610820008.1A CN201610820008A CN108258737A CN 108258737 A CN108258737 A CN 108258737A CN 201610820008 A CN201610820008 A CN 201610820008A CN 108258737 A CN108258737 A CN 108258737A
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- module
- impedance
- wireless charging
- filled
- power supply
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- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- 238000007600 charging Methods 0.000 claims abstract description 76
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000009471 action Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 13
- 239000002184 metal Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- H02J7/025—
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- 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
Abstract
The invention discloses a kind of protective devices of wireless charger; primary structure includes one for putting at least one cradle ontology to be filled put, one being set on the intrinsic wireless charging transmission module of the cradle, and to be filled put is carried out wireless charging, one is set on the intrinsic impedance detecting module of the cradle, one is electrically connected the module of rationing the power supply of impedance detecting module, one is electrically connected impedance detecting module and the information receiving module of the module of rationing the power supply with magnetic resonance unit selectivity.By means of above structure, first puts normal wireless charging using cradle ontology to be filled, second, when it is to be filled be set to metallic foreign body when, the high impedance value that module obtains can be detected by impedance, and stop charging action by means of module of rationing the power supply or reduce its output power, third, even if to be filled put comprising metallic foreign body, the impedance information that can be still obtained by information receiving module maintains to charge normal.
Description
Technical field
The present invention relates to wireless charger technical field, espespecially a kind of protective device of wireless charger.
Background technology
So-called wireless charging is also referred to as non-contact inductive charge, mainly by charger by inductive coupling by energy
Send electrical equipment to, electrical equipment charges to battery after receiving energy；It is distant when charger and electrical equipment
When, i.e., it is designed using inductive coupling.Due to being to transmit energy using near field induction mode between charger and electrical equipment, therebetween
It need not be connected using power cord, therefore there is many advantages, such as safe, durable and convenient.
By the induction between above-mentioned power supply module (charger) and the coil being had by electric module (electrical equipment),
When making magnetic coupling and carrying out wireless power transmission, it is necessary to make by electric module close to power supply module, being configured at can be by power supply mould
Group uses the distance (can power supply area) powered by electric module.During such use, if being placed around in power supply module
Metallic foreign body, then metallic foreign body can be affected by magnetic fields and generate eddy current.If generating this eddy current, lead to metallic foreign body or confession
Electric module generates the situation of overheat.Especially by taking mobile phone as an example, more moneys are all metal material compared with the back-cover of tool texture, and lead to wireless charging
The problem of being overheated when electric.
To solve the above problems, develop a kind of product that wireless charging is carried out using magnetic resonance principle then on the market.Profit
When being charged with this product, even if that metallic foreign body can occur in power supply area, the above problem will not occur, however still have minority
Metal material will appear overheating conditions, such as：CD (compact disk, CD), digital video disk (Digital
Video Disc, DVD) etc. thin types metal, therefore the charge requirement of such thin type metal can only be given up in the past.
So how to solve the problems, such as it is above-mentioned commonly use with missing, as applicant of the present invention and be engaged in the industry
Relevant manufactures are desired most ardently where the direction that research improves.
Therefore applicant of the present invention is in view of above-mentioned missing, is to collect related data, via multi-party assessment and considers, and with
The many years of experience of the industry accumulation is engaged in, via constantly studying and changing, designs the present invention eventually.
Invention content
The purpose of the present invention is to provide a kind of protective devices of wireless charging, and most metallicses can be avoided when charging
Presence and the phenomenon that overheat, and can solve the problems, such as charge in the situation for having thin type metallic foreign body.
Based on this, the present invention is mainly by utilising techniques, to realize above-mentioned purpose.
A kind of protective device of wireless charger, it includes：One for putting at least one cradle ontology to be filled put；One
Set on the intrinsic wireless charging transmission module of the cradle, and wireless charging transmission module includes a magnetic resonance unit, with
The mode selectivity of magnetic resonance to be filled puts carry out wireless charging to this；One is set on the intrinsic impedance detecting mould of the cradle
Group, impedance detecting module detect the impedance value to be filled put；One is electrically connected the module of rationing the power supply of impedance detecting module, in
When the impedance value is more than a predefined impedance value, makes wireless charging transmission module stopping action or reduce wireless charging transmission mould
The output power of group；And one be electrically connected the impedance detecting module and the module of rationing the power supply information receiving module, the information receive
Module receives the impedance information to be filled put, and limits the action of the module of rationing the power supply.
Further, there is in the cradle ontology current control unit, in this it is to be filled be set to multiple when, adjustment output
Electric current makes to be filled put receive identical current value.
Further, which includes one and calculates module, which calculates the variable quantity of the impedance value, adjusts
The output current of the whole current control unit.
Further, which includes an identification module, which distinguishes whether the impedance value is predetermined more than this
Impedance value.
Further, which transmits information with bluetooth communication modes.
A kind of protective device of wireless charger, it includes：One cradle ontology；At least one it is to be filled put, selectively put
It is put on the cradle ontology；One is set on the intrinsic wireless charging transmission module of the cradle, and wireless charging transmission mould
Group is comprising a magnetic resonance unit, and selectivity to be filled puts carry out wireless charging to this in a manner of magnetic resonance；One waits to fill set on this
Wireless charging receiving module in device transmits module interoperation with the wireless charging；One, which is set on this, to be filled puts interior letter
Transferring modules are ceased, which transmits the impedance information to be filled put；One is set on the intrinsic impedance of the cradle
Module is detected, impedance detecting module detects the impedance value to be filled put；One electric connection impedance detecting module is rationed the power supply
Module when the impedance value is more than a predefined impedance value, makes wireless charging transmission module stopping action or reduces the wireless charging
The output power of electrical transmission module；And one be electrically connected the impedance detecting module and the module of rationing the power supply information receiving module, should
Information receiving module receives the impedance information, and limits the action of the module of rationing the power supply.
Preferably, the cradle ontology in have a current control unit, in this it is to be filled be set to multiple when, adjustment output
Electric current makes to be filled put receive identical current value.
Preferably, the current control unit, which includes one, calculates module, which calculates the variable quantity of the impedance value, adjusts
The output current of the whole current control unit.
Preferably, this is rationed the power supply, module includes an identification module, which distinguishes whether the impedance value is predetermined more than this
Impedance value.
Preferably, the information receiving module and the information transferring modules transmit information with bluetooth communication modes.
The protective device of wireless charger of the present invention by wireless charging transmit module, module of rationing the power supply, impedance detect module,
The structure design of information receiving module using the wireless charging technology of magnetic resonance, during wireless charging, allows most of thin type
Metal avoids the occurrence of the situation of temperature rise.Even if there are metallic foreign body, wireless charging can be also carried out under protection mechanism.
When the wireless charging that the present invention is put (such as mobile phone) for be filled by user, because of wireless charging transmission module profit
Wireless charging action is carried out with magnetic resonance unit, therefore there are metallic foreign bodies, most situation in wireless charging range still may be used
Module and the interoperation of wireless charging receiving module are transmitted by wireless charging, maintenance is charged normal without overheating, if but hindering
When anti-detecting module causes detecting result display impedance value excessively high because measuring metallic foreign body, then first confirmed by information receiving module,
Whether the impedance information of information transferring modules is received, if being otherwise determined as insecurity and starting module of rationing the power supply, to stop
Charging reduces output power, though representing if having in range there are metallic foreign body, its impedance generated to be filled is put for this
Permission impedance value during charging, and allow to charge.
By above-mentioned technology, can for have when commonly using the charging present in wireless charging technology can be overheated during metallic foreign body,
And the problems such as point that can not charge when being charged with mr techniques to thin type metal is broken through, and reaches above-mentioned advantage.
Description of the drawings
Fig. 1 is the perspective view of present pre-ferred embodiments.
Fig. 2 is the schematic block diagram of present pre-ferred embodiments.
Fig. 3 is the decision-making party block diagram of present pre-ferred embodiments.
Fig. 4 is the implementation schematic diagram (one) of present pre-ferred embodiments.
Fig. 5 is the implementation schematic diagram (two) of present pre-ferred embodiments.
Fig. 6 is the implementation schematic diagram (three) of present pre-ferred embodiments.
Fig. 7 is the implementation schematic diagram of yet another embodiment of the invention.
【Symbol description】
Cradle ontology 1,1a wireless chargings transmission module 11
111 information receiving module 12 of magnetic resonance unit
Impedance detecting module 13 is rationed the power supply module 14
Recognize 141 current control unit 15a of module
Calculating module 151a is to be filled to put 2,2a
21 information transferring modules 22 of wireless charging receiving module
Metal back cover 23.
Specific embodiment
To reach above-mentioned purpose and effect, the technology used in the present invention means and construction, the just present invention that hereby draws are preferable
Its feature of embodiment elaborate and function are as follows, are understood completely with sharp.
Please refer to Fig.1 and Fig. 2 shown in, be present pre-ferred embodiments perspective view and schematic block diagram, by figure
It can be seen that the present invention includes：
One cradle ontology 1；
At least one it is to be filled put 2, be selectively placed on the cradle ontology 1, the to be filled of the present embodiment puts 2 with intelligent hand
The action electronic devices such as machine, tablet computer are representative；
One is set on the wireless charging transmission module 11 in the cradle ontology 1, and wireless charging transmission module 11 includes a magnetic
Resonating member 111, selectivity to be filled puts 2 carry out wireless chargings to this in a manner of magnetic resonance；
One is set on the wireless charging receiving module 21 to be filled put in 2, and 11 interoperation of module is transmitted with the wireless charging；
One be set on the information transferring modules 22 to be filled put in 2, for transmit this it is to be filled put 2 impedance information；
One be set on the cradle ontology 1 in impedance detecting module 13, for detect this it is to be filled put 2 impedance value；
One is electrically connected the module 14 of rationing the power supply of impedance detecting module 13, and when the impedance value is more than predefined impedance value, stopping should
The action of wireless charging transmission module 11 or the output power for reducing wireless charging transmission module 11, and the module 14 of rationing the power supply wraps
Containing an identification module 141, for distinguishing whether the impedance value is more than the predefined impedance value；And
One is electrically connected impedance detecting module 13 and the information receiving module 12 of the module 14 of rationing the power supply, for receiving impedance letter
Breath, and limit the action of the module 14 of rationing the power supply.
Wherein the information receiving module 12 and the information transferring modules 22 transmit information with bluetooth communication modes.
It is also reachable by means of the structure that by above-mentioned explanation, can be appreciated that the present invention, and according to the corresponding matching of this structure
To can avoid the presence of most metallicses and the phenomenon that overheat during charging, and can solve can not be in the situation for having metallic foreign body
The advantages such as the problem of charging, and detailed explanation will be in the description below.
Please coordinate simultaneously refering to shown in Fig. 1 to Fig. 6, be the perspective views of present pre-ferred embodiments, schematic block diagram,
Decision-making party block diagram implements schematic diagram (one), implements schematic diagram (two) and implement schematic diagram (three), by means of by above-mentioned component groups structure
When, it can be by being apparent from figure, the present invention is identical with general wireless charging base in appearance, and carries out in typical circumstances wireless
During charging, as long as also putting 2 by be filled and being placed on cradle ontology 1, you can transmit module 11 by wireless charging and constantly put
The Charging signal gone out charges, and the wireless charging transmission module 11 of the present invention utilizes magnetic resonance unit 111 with magnetic resonance
Mode puts 2 carry out wireless chargings to be filled, as long as therefore it is to be filled put 2 wireless charging receiving module 21 receive the charging news
Number, it just can enter wireless charging program.
If occurring the metallic foreign body other than mobile phone on cradle ontology 1 or in chargeable range, impedance detecting module 13 will
A higher impedance value is measured in real time, and recognize module 141 (can represent the resistance of safe range by the impedance value and predefined impedance value
Anti- value) it compares, if confirming, impedance value is more than predefined impedance value (situation of the metallic foreign body for thin metal, such as CD, DCD
Deng), then judged again by information receiving module 12, if having and receive the impedance information that information transferring modules 22 are transmitted, if not
Receive the impedance information, that is, represent the high impedance value be only general metallic foreign body rather than it is chargeable it is to be filled put 2, and by
Module 14 of rationing the power supply stops the charging action of wireless charging transmission module 11 or reduces output power；If confirmation receives impedance letter
Breath represents that the high impedance value puts the 2 appended metal objects hung, such as metal back cover 23 to be to be filled, and limit the mould of rationing the power supply
The action of group 14 makes wireless charging transmission module 11 put 2 carry out wireless chargings to be filled.For example, it is assumed that predetermined impedance
It is 100 to be worth, and the impedance of pure mobile phone charging is 30, and the impedance of metal back cover 23 is 80, therefore impedance detecting module 13 can measure 110
Impedance value, and for more than predefined impedance value 100 as a result, however mobile phone can send an impedance information, represent 110 impedance value
For normal value, and it is normally carried out charging.
Please coordinate the implementation schematic diagram as shown in fig.7, for yet another embodiment of the invention simultaneously again, seen by that can understand in figure
Going out, the present embodiment and above-described embodiment are similar, only in having a current control unit 15a in cradle ontology 1a, in
It is to be filled when to put 2a be multiple, output current is adjusted, the 2a to be filled that puts is made to receive identical current value, and the current control list
First 15a includes one and calculates module 151a, for calculating the variable quantity of the impedance value, adjusts the output electricity of current control unit 15a
Stream.By means of whereby, when have in the chargeable range of cradle ontology 1a it is multiple it is to be filled put 2a when, can be by calculating module 151a meters
The variable quantity of present impedance value is calculated, the electric current of current control unit 15a adjustment outputs is enabled, makes each 2a to be filled that puts that can still receive
To identical current value.In other words, when cradle ontology 1a simultaneously to it is multiple it is to be filled put 2a and charge when, can borrow by
The mode of the magnitude of current is improved, maintains the charge efficiency of script.
The foregoing is merely illustrative of the preferred embodiments of the present invention, therefore, it does not limit the scope of the claims of the present invention, therefore lifts
All simple modifications and equivalent structure with carried out by description of the invention and schema content change, and should all similarly be contained in the present invention
The scope of the claims in.
Therefore please refer to shown in whole attached drawings, the present invention with located by prior art in use, compare, there are following advantages really：
First, wireless charging is carried out using mr techniques, can not be influenced by most metal materials, and charging normal will not occur
Thermal phenomenon.
2nd, there is high impedance Security mechanism, the superheating phenomenon that the charging of special metal material can be avoided to generate.
3rd, using bluetooth transmit by it is to be filled put 2 impedance information, request allow wireless charging, the nothing to avoid erroneous judgement
Method charges.
4th, cradle ontology 1a can simultaneously charge, and can maintain the charge efficiency of script to multiple 2a to be filled that put.
In conclusion the protective device of wireless charger of the present invention in use, can reach its effect and purpose really.
Claims (10)
1. a kind of protective device of wireless charger, which is characterized in that include：
One for putting at least one cradle ontology to be filled put；
One is set on the intrinsic wireless charging transmission module of the cradle, and wireless charging transmission module includes a magnetic resonance list
Member, selectivity to be filled puts carry out wireless charging to this in a manner of magnetic resonance；
One is set on the intrinsic impedance detecting module of the cradle, and impedance detecting module detects the impedance value to be filled put；
One is electrically connected the module of rationing the power supply of impedance detecting module, when the impedance value is more than a predefined impedance value, makes this wireless
Charging transmission module stopping action or the output power for reducing wireless charging transmission module；And
The information receiving module of one electric connection impedance detecting module and the module of rationing the power supply, the information receiving module receive this and treat
The impedance information put is filled, and limits the action of the module of rationing the power supply.
2. the protective device of wireless charger as described in claim 1, it is characterised in that：There is an electricity in the cradle ontology
Flow control unit, in this it is to be filled be set to multiple when, adjust output current, to be filled put made to receive identical current value.
3. the protective device of wireless charger as claimed in claim 2, it is characterised in that：The current control unit includes a meter
Module is calculated, which calculates the variable quantity of the impedance value, adjust the output current of the current control unit.
4. the protective device of wireless charger as described in claim 1, it is characterised in that：The module of rationing the power supply includes an identification mould
Group, the identification module distinguish whether the impedance value is more than the predefined impedance value.
5. the protective device of wireless charger as described in claim 1, it is characterised in that：The information receiving module is led to bluetooth
News mode transmits information.
6. a kind of protective device of wireless charger, which is characterized in that include：
One cradle ontology；
At least one it is to be filled put, be selectively placed on the cradle ontology；
One is set on the intrinsic wireless charging transmission module of the cradle, and wireless charging transmission module includes a magnetic resonance list
Member, selectivity to be filled puts carry out wireless charging to this in a manner of magnetic resonance；
One be set on this it is to be filled put interior wireless charging receiving module, transmit module interoperation with the wireless charging；
One be set on this it is to be filled put interior information transferring modules, which transmits the impedance information to be filled put；
One is set on the intrinsic impedance detecting module of the cradle, and impedance detecting module detects the impedance value to be filled put；
One is electrically connected the module of rationing the power supply of impedance detecting module, when the impedance value is more than a predefined impedance value, makes this wireless
Charging transmission module stopping action or the output power for reducing wireless charging transmission module；And
The information receiving module of one electric connection impedance detecting module and the module of rationing the power supply, the information receiving module receive the resistance
Anti- information, and limit the action of the module of rationing the power supply.
7. the protective device of wireless charger as claimed in claim 6, it is characterised in that：There is an electricity in the cradle ontology
Flow control unit, in this it is to be filled be set to multiple when, adjust output current, to be filled put made to receive identical current value.
8. the protective device of wireless charger as claimed in claim 7, it is characterised in that：The current control unit includes a meter
Module is calculated, which calculates the variable quantity of the impedance value, adjust the output current of the current control unit.
9. the protective device of wireless charger as claimed in claim 6, it is characterised in that：The module of rationing the power supply includes an identification mould
Group, the identification module distinguish whether the impedance value is more than the predefined impedance value.
10. the protective device of wireless charger as claimed in claim 6, it is characterised in that：The information receiving module and the letter
It ceases transferring modules and transmits information with bluetooth communication modes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610820008.1A CN108258737A (en) | 2016-09-13 | 2016-09-13 | The protective device of wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610820008.1A CN108258737A (en) | 2016-09-13 | 2016-09-13 | The protective device of wireless charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108258737A true CN108258737A (en) | 2018-07-06 |
Family
ID=62718874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610820008.1A Pending CN108258737A (en) | 2016-09-13 | 2016-09-13 | The protective device of wireless charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108258737A (en) |
-
2016
- 2016-09-13 CN CN201610820008.1A patent/CN108258737A/en active Pending
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