CN106785459A - A kind of coil for wireless charging device antenna - Google Patents
A kind of coil for wireless charging device antenna Download PDFInfo
- Publication number
- CN106785459A CN106785459A CN201611160046.5A CN201611160046A CN106785459A CN 106785459 A CN106785459 A CN 106785459A CN 201611160046 A CN201611160046 A CN 201611160046A CN 106785459 A CN106785459 A CN 106785459A
- Authority
- CN
- China
- Prior art keywords
- fluid channel
- coil
- liquid metal
- wireless charging
- charging device
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of coil for wireless charging device antenna, the coil includes being coiled into the fluid channel of coil shape and the liquid metal being filled in the fluid channel, and from the micro syringe pump that is connected with fluid channel to injection in the fluid channel/extract liquid metal out, and change the length of liquid metal in the fluid channel, the intensity of induced field is produced so as to change, coil is exported the energy with different capacity.Coil for wireless charging device antenna of the invention, simple structure, strong applicability.
Description
Technical field
The present invention relates to wireless charging technical field, more particularly, to a kind of line for wireless charging device antenna
Circle.
Background technology
Wireless charging technology comes from wireless power transmission technology, and wireless power transmission technology is divided into induction, magnetic field
Resonant and radio waves type.When being charged using wireless charging technology, need not be connected with electric wire between charger and power device
Connect, and energy is directly transmitted by magnetic field between the two, make charger and power device all without exposed conducting contact, raising makes
Use security.
Induction wireless charging mode, is that a coil is respectively set in charger and power device.To setting
The alternating current of certain frequency is passed through in primary coil in charger, the primary coil after energization produces induced field, the magnetic
Field produces certain electric current in the secondary coil in power device, so as to transmit its energy to power device, to power device
Charge, and without electric wire connection.
At present, most mobile device is required for plain conductor to be charged, and charger model and power not
It is identical to the greatest extent.The advantage of wireless charger is its convenience and versatility, the various chargers needed for can greatly reducing user
Quantity.
Critical component in wireless charger is transmit/receive antenna coil.The number of turn and area of coil are directly affected and set
Standby charge efficiency and charging interval.But, generally only had using the charger of wireless charging technology in the market single
The coil of the number of turn, also, coil turn can not change, and the charge power of electronic product and charging current are not quite similar, it is single
The charge coil of the number of turn is difficult to meet the charge requirement of different model/specification electrical equipment.
The content of the invention
The present invention provide it is a kind of overcome above mentioned problem or solve the above problems at least in part can change coil turn
Number, change power output, the coil for wireless charging device antenna with very strong applicability.
According to an aspect of the present invention, there is provided a kind of coil for wireless charging device antenna, it includes：It is coiled into
The fluid channel of coil shape and the liquid metal being filled in the fluid channel.
On the basis of such scheme, the caliber scope of the fluid channel is 0.01mm-1mm.
On the basis of such scheme, the fluid channel is located at one end connection micro syringe pump of hub of a spool position, described
Liquid metal is injected/extracted out in the fluid channel by the micro syringe pump, to control the length of the liquid metal in the fluid channel
Degree.
On the basis of such scheme, the fluid channel is provided with what is communicated with external environment condition positioned at the outermost one end of coil
Through hole.
On the basis of such scheme, one end that the fluid channel is located at hub of a spool position is connected with and liquid gold
Belong to contact first electrode connecting line, be provided with the fluid channel one with the first electrode connecting line constitute loop and
With the second electrode connecting line of the liquid metal contacts.
On the basis of such scheme, the second electrode connecting line is at least one.
On the basis of such scheme, the liquid metal is low-melting-point metal.
On the basis of such scheme, the low-melting-point metal be gallium in applied environment into liquid, gallium-base alloy or
Indium-base alloy.
On the basis of such scheme, the material of the fluid channel is flexible polymer.
On the basis of such scheme, the flexible polymer is silicon rubber, dimethyl silicone polymer, poly- ethylene
One or more in the highly elastic materials such as diester, polyvinyl alcohol, polyvinyl formal or polyethylene.
A kind of coil for wireless charging device antenna that the application is proposed, its advantage is mainly as follows：
(1) liquid metal in fluid channel and fluid channel forms coil together, and by adjusting the gold of the liquid in fluid channel
The length of category, so that change the effective turn of coil, to change the intensity of the induced field that the coil after being powered is produced, regulation side
Formula is easy, can make same energy of the coil output with different capacity, strong applicability；
(2) from micro syringe pump to injection in fluid channel/extraction liquid metal, to change the length of liquid metal in fluid channel
Degree, control methods are simple；
(3) a plurality of second electrode connecting line is set in fluid channel, the number of turn for accessing the coil in circuit is conveniently adjusted, with defeated
Go out the energy with different capacity；
(4) species selectivity of liquid metal is more, stable in properties；
(5) the material species selectivity of fluid channel is more, further, it is possible to adapt to the change of liquid metal in fluid channel, makes micro-
Liquid metal in runner is fully contacted with the inner tubal wall of fluid channel, it is ensured that the stability of coil power output.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the coil for wireless charging device antenna according to the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
It is shown in Figure 1, a kind of coil for wireless charging device antenna, including fluid channel 1 and liquid metal 2.It is micro-
Runner 1 is coiled into coil shape, and liquid metal 2 is filled in fluid channel 1.It is filled in liquid metal 2 and miniflow in fluid channel 1
Road 1 forms coil that can be conductive together, for producing induced field, realizes the transmission of energy.
According to practical application condition, the pipe diameter size of fluid channel 1 is adjusted, with the resistance of balance adjustment coil and the sense for producing
Answer the energy in magnetic field.The caliber scope of fluid channel 1 is 0.01mm-1mm.
The caliber of fluid channel 1 is too small, and the resistance of coil is excessive, and the loss of energy is not only resulted in, reduces energy transmission/reception
Efficiency, meanwhile, also result in coil and be easy to heating, cause radiating difficult, influence uses safety.
The caliber of fluid channel 1 is too big, and in same area, the number of turn of the coiling of fluid channel 1 is reduced, and influences the induced field for producing
Intensity, make coil produce induced field energy reduce, reduce the efficiency of energy transmission/reception.
One end that fluid channel 1 is located at hub of a spool position is connected with a micro syringe pump 4.Being stored in micro syringe pump 4 has liquid
By one end that fluid channel 1 is located at hub of a spool position be injected into fluid channel 1 liquid metal 2 by metal 2, micro syringe pump 4.
It is golden to liquid is injected in fluid channel 1 from micro syringe pump 4 when the length of liquid metal 2 in needing to increase fluid channel 1
Category 2；When the length of liquid metal 2 in needing to reduce fluid channel 1, liquid metal 2 is taken out from fluid channel 1 by micro syringe pump 4
Go out.
Because liquid metal 2 has larger surface tension, when be injected into liquid metal 2 in fluid channel 1 by micro syringe pump 4
When, due to the effect of the surface tension of liquid metal 2, there is adhesive force between the inner tubal wall of liquid metal 2 and fluid channel 1, this is attached
Put forth effort to hinder flowing of the liquid metal 2 in fluid channel 1, liquid metal 2 is not arbitrarily flowed in fluid channel 1.
In the presence of the thrust of micro syringe pump 4, liquid metal 2 is by the note of micro syringe pump 4 for liquid metal 2 in fluid channel 1
Enter in fluid channel 1, flow to increase the length of the liquid metal 2 in fluid channel 1 in fluid channel 1.
When the length of needs is reached, stop the injection action of micro syringe pump 4, micro syringe pump 4 is no longer in fluid channel 1
Liquid metal 2 applies thrust.Due to the effect of the surface tension of liquid metal 2, liquid metal 2 stops flowing in fluid channel 1, and
Will not continue to be flowed in fluid channel 1.
Liquid metal 2 in fluid channel 1 in the presence of the outside suction of micro syringe pump 4, the liquid metal 2 in fluid channel 1
Extracted out by micro syringe pump 4, flowed in micro syringe pump 4, the length of liquid metal 2 reduces in fluid channel 1.
When the length of needs is reached, stop the extraction action of micro syringe pump 4, micro syringe pump 4 is no longer in fluid channel 1
Liquid metal 2 applies suction.Due to the effect of the surface tension of liquid metal 2, liquid metal 2 stops flowing in fluid channel 1, and
Will not continue to be flowed in fluid channel 1.
By controlling the length of liquid metal 2 in fluid channel 1, there is the part that there is liquid metal 2 in fluid channel 1 and lead
Electricity Functional, and the part in fluid channel 1 in the absence of liquid metals 2 does not have conducting function.
Therefore, in the coil being coiled into by fluid channel 1, there is the coil that the part of the fluid channel 1 of liquid metal 2 formed is
Active coil, its coil turn is effective turn.After energization, shadow of the induced field that this coil sections is produced by effective turn
Ring.
By the way of fluid channel 1 is connected positioned at the end of hub of a spool position with micro syringe pump 4, by micro syringe pump 4
To injection in fluid channel 1/extraction liquid metal 2, to change the length of the liquid metal 2 in fluid channel 1, so that in changing coil
It is capable of the length of current-carrying part, to change the effective turn of coil.
By changing the length of liquid metal 2 in fluid channel 1, and change the effective turn of coil, to change coil generation
Induced field energy, so as to change the efficiency of energy transmission/reception.Meanwhile, the change of coil effective turn causes to produce
Induced field energy variation so that the power output of charging device changes, to adapt to different charge powers
Equipment wireless charging demand, enhance applicability.
By changing the length of liquid metal 2 in fluid channel 1, to change the effective turn of coil, realize that charging device is defeated
Go out the adjustment of power, control mode is easy, strong applicability.Meanwhile, only change the length of liquid metal 2, it is micro- without changing
The length or the coiling number of turn of runner 1, i.e., need not change the external shape or attribute of coil, just can realize coil-induced magnetic field
The regulation and control of energy.
Fluid channel 1 is provided with a through hole 5 positioned at the outermost one end of coil.Through hole 5 makes pipeline and external rings in fluid channel 1
Border communicates.When liquid metal 2 is injected during micro syringe pump 4 is to fluid channel 1, because fluid channel 1 passes through through hole 5 and external environment condition phase
It is logical, to balance the air pressure in fluid channel 1.In the presence of the thrust that micro syringe pump 4 applies, liquid metal 2 can be smoothly entered
To in fluid channel 1.
When micro syringe pump 4 outwards extracts liquid metal 2 out from fluid channel 1, because fluid channel 1 is by through hole 5 and outside
Environment is communicated, to balance the air pressure in fluid channel 1.In the presence of the suction that micro syringe pump 4 applies, liquid metal 2 can be smooth
From fluid channel 1 in micro syringe pump 4 flow.
One end that fluid channel 1 is located at hub of a spool position is connected with first electrode connecting line 3a, first electrode connecting line 3a
Contacted with the liquid metal 2 in fluid channel 1.First electrode connecting line 3a is used to connect external control circuit.
The liquid gold in second electrode connecting line 3b, second electrode connecting line 3b and fluid channel 1 is provided with fluid channel 1
Category 2 is contacted.Second electrode connecting line 3b is used to connect external control circuit.
Liquid metal 2 and external control electricity in second electrode connecting line 3b, first electrode connecting line 3a, fluid channel 1
Road forms loop.After external control circuit conducting, the liquid metal 2 in fluid channel 1 is set to be powered, because fluid channel 1 is coiled into line
Loop-shaped, the fluid channel 1 of the coiled type after energization produces induced field, to export the energy with certain power, realizes energy
Transmission/reception.
At least provided with a second electrode connecting line 3b in fluid channel 1.Be coiled into coil shape fluid channel 1 it is each
One second electrode connecting line 3b is all set on circle, or according to certain interval in the fluid channel 1 for be coiled into coil shape
Second electrode connecting line 3b is set.
When needing to change the power output of charging device, connect corresponding first electrode connecting line 3a and second electrode connects
Wiring 3b, it is micro- to change from micro syringe pump 4 to liquid metal 2 or the extraction liquid metal 2 from fluid channel 1 is injected in fluid channel 1
The length of liquid metal 2 in runner 1, makes the liquid metal 2 in fluid channel 1 just at corresponding second electrode connecting line 3b's
Position, and contacted with second electrode connecting line 3b.So as to change the effective turn of coil, to export the energy with different capacity
Amount, the function that realization is charged to the equipment with different size receiving coil.
A plurality of second electrode connecting line 3b is set in fluid channel 1, in order to change what liquid metal 2 and fluid channel 1 were formed
The partially ON power supply of effective turn of coil, produces induced field, to export the energy with different capacity.
Liquid metal 2 is low-melting-point metal.Liquid metal 2 is the low-melting-point metal being in a liquid state in applied environment.Liquid
The characteristics of metal has high temperature resistant, not volatile, thermal conductivity is high, nontoxic and stable in properties.It is situated between as work using liquid metal
Matter, the heat produced during coil working can be distributed in time；Because liquid metal is stable in properties, will not be waved in the course of work
Send out and cause the loss of working media, make coil working in stable condition.
The low-melting-point metal that liquid metal 2 is used is gallium, gallium base binary/multicomponent alloy or indium-base alloy.Wherein gallium base two
Unit/multicomponent alloy is gallium-indium alloy, gallium metal, gallium-indium-tin alloy or gallium indium tin zinc bismuth alloy；Indium-base alloy be indium stannum alloy,
Indium cadmium alloy, indium tin-lead cadmium alloy, indium silver alloy.By changing the content of each metal component in alloy, make alloy in application ring
Under the temperature conditionss in border, liquid is remained.
It is below conventional constituent content, gallium-base alloy such as Ga75.5In24.5、Ga96.4Zn3.6、Ga99.2Al0.8、
Ga86.5Sn13.5、Ga72In12Zn16、Ga62.5In21.5Sn16、Ga68.5In21.5Sn10、Ga61In25Sn13Zn1, indium-base alloy is such as
In52Sn48、In74Cd26、In97Ag3、In99.3Ga0.7、In99.6Ga0.4、In70Sn15Pb9.6Cd5.4、
Bi44.7Pb22.6In19.1Sn8.3Cd5.3。
The material of fluid channel 1 is flexible polymer.Flexible polymer has preferable high temperature resistant, resistance to low temperature, also,
With certain elasticity, inner tubal wall of the liquid metal 2 with fluid channel 1 in fluid channel 1 can be easy to be fully contacted, to ensure line
Enclose performance stabilization, enable the coil after energization stablize generation induced field energy, it is to avoid the fluctuation of energy and influence
The stability in use of charging device.
Above-mentioned flexible polymer is silicon rubber, dimethyl silicone polymer, poly- polyethylene terephthalate, polyvinyl alcohol, poly-
One or more in the highly elastic material such as vinyl formal or polyethylene.
A kind of coil for wireless charging device antenna of the invention, the fluid channel 1 made by flexible polymer is coiled
Into coiled type, liquid metal 2 injects/extracts out fluid channel 1 by one end that fluid channel 1 is located at hub of a spool position, to change miniflow
The length of liquid metal 2 in road 1.
Meanwhile, the one end for being located at hub of a spool position in fluid channel 1 sets first electrode connecting line 3a, on logistics road 1
At least one second electrode connecting line 3b that loop is constituted with first electrode connecting line 3a is set.First electrode connecting line 3a,
Liquid metal 2 and external control circuit in two electrode connecting line 3b, fluid channel 1 form loop.
When external control circuit is turned on, the liquid metal 2 in fluid channel 1 is powered, and produces induced field, has to export
The energy of certain power.By changing the length of the liquid metal 2 in fluid channel 1, corresponding first electrode connecting line 3a is connected
With second electrode connecting line 3b, realize changing the purpose of coil effective turn, to realize that charging device output has different capacity
Energy.
Finally, the present processes are only preferably embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of coil for wireless charging device antenna, it is characterised in that it includes：It is coiled into the fluid channel of coil shape
And the liquid metal (2) that is filled in the fluid channel (1) (1).
2. a kind of coil for wireless charging device antenna as claimed in claim 1, it is characterised in that：The fluid channel (1)
Caliber is 0.01mm-1mm.
3. a kind of coil for wireless charging device antenna as claimed in claim 1, it is characterised in that：Fluid channel (1) position
Micro syringe pump (4) is connected in one end of hub of a spool position, the liquid metal (2) is injected/extracted out by the micro syringe pump (4)
In the fluid channel (1), to control the length of the liquid metal (2) in the fluid channel (1).
4. a kind of coil for wireless charging device antenna as claimed in claim 1, it is characterised in that：Fluid channel (1) position
The through hole (5) communicated with external environment condition is provided with the outermost one end of coil.
5. a kind of coil for wireless charging device antenna as claimed in claim 1, it is characterised in that：Fluid channel (1) position
The first electrode connecting line (3a) contacted with the liquid metal (2), the miniflow are connected with one end of hub of a spool position
One article of for constituting loop with the first electrode connecting line (3a) and contacting with the liquid metal (2) is provided with road (1)
Two electrode connecting lines (3b).
6. a kind of coil for wireless charging device antenna as claimed in claim 5, it is characterised in that：The second electrode connection
Line (3b) is at least one.
7. a kind of coil for wireless charging device antenna as claimed in claim 1, it is characterised in that：The liquid metal (2)
It is low-melting-point metal.
8. a kind of coil for wireless charging device antenna as claimed in claim 7, it is characterised in that：The low-melting-point metal is
Gallium, gallium-base alloy or indium-base alloy in applied environment into liquid.
9. a kind of coil for wireless charging device antenna as claimed in claim 1, it is characterised in that：The fluid channel (1)
Material is flexible polymer.
10. a kind of coil for wireless charging device antenna as claimed in claim 9, it is characterised in that：The flexible polymer
For silicon rubber, dimethyl silicone polymer, poly- polyethylene terephthalate, polyvinyl alcohol, polyvinyl formal or polyethylene are contour
One or more in elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160046.5A CN106785459A (en) | 2016-12-15 | 2016-12-15 | A kind of coil for wireless charging device antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160046.5A CN106785459A (en) | 2016-12-15 | 2016-12-15 | A kind of coil for wireless charging device antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106785459A true CN106785459A (en) | 2017-05-31 |
Family
ID=58889159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611160046.5A Pending CN106785459A (en) | 2016-12-15 | 2016-12-15 | A kind of coil for wireless charging device antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN106785459A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769298A (en) * | 2017-09-25 | 2018-03-06 | 西安交通大学 | A kind of super surface texture wireless charging device of dynamic Frequency Adjustable and its application |
| CN108232417A (en) * | 2017-12-20 | 2018-06-29 | 云南靖创液态金属热控技术研发有限公司 | A kind of liquid metal reconfigurable antenna |
| CN108417363A (en) * | 2018-02-10 | 2018-08-17 | 深圳大学 | A kind of liquid metal Wireless charging coil and preparation method thereof |
| CN109480491A (en) * | 2018-11-08 | 2019-03-19 | 天津大学 | A kind of wireless charging desk using liquid metal |
| CN109986984A (en) * | 2019-05-13 | 2019-07-09 | 广东电网有限责任公司 | A kind of charging gun structure with voltage-limiting protection function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304184A (en) * | 2007-01-09 | 2008-11-12 | 索尼爱立信移动通信日本株式会社 | Non-contact power transmission coil, portable terminal and terminal charging device |
| GB2435720B (en) * | 2006-03-03 | 2009-11-04 | Samsung Electro Mech | Frequency tunable liquid antenna |
| CN103248092A (en) * | 2013-05-02 | 2013-08-14 | 湖南人文科技学院 | Adjustable wireless charging coil and application method thereof |
| CN203312451U (en) * | 2013-05-17 | 2013-11-27 | 盛世铸成科技(北京)有限公司 | A multipurpose label antenna and a terminal device with the antenna |
| CN104092020A (en) * | 2014-07-02 | 2014-10-08 | 深圳市信维通信股份有限公司 | NFC and wireless charging antenna |
| CN104300205A (en) * | 2014-08-22 | 2015-01-21 | 大连海事大学 | Liquid metal spiral antenna |
| CN105448489A (en) * | 2014-08-11 | 2016-03-30 | 介面光电股份有限公司 | Film coil, film coil assembly and charging device |
-
2016
- 2016-12-15 CN CN201611160046.5A patent/CN106785459A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2435720B (en) * | 2006-03-03 | 2009-11-04 | Samsung Electro Mech | Frequency tunable liquid antenna |
| CN101304184A (en) * | 2007-01-09 | 2008-11-12 | 索尼爱立信移动通信日本株式会社 | Non-contact power transmission coil, portable terminal and terminal charging device |
| CN103248092A (en) * | 2013-05-02 | 2013-08-14 | 湖南人文科技学院 | Adjustable wireless charging coil and application method thereof |
| CN203312451U (en) * | 2013-05-17 | 2013-11-27 | 盛世铸成科技(北京)有限公司 | A multipurpose label antenna and a terminal device with the antenna |
| CN104092020A (en) * | 2014-07-02 | 2014-10-08 | 深圳市信维通信股份有限公司 | NFC and wireless charging antenna |
| CN105448489A (en) * | 2014-08-11 | 2016-03-30 | 介面光电股份有限公司 | Film coil, film coil assembly and charging device |
| CN104300205A (en) * | 2014-08-22 | 2015-01-21 | 大连海事大学 | Liquid metal spiral antenna |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769298A (en) * | 2017-09-25 | 2018-03-06 | 西安交通大学 | A kind of super surface texture wireless charging device of dynamic Frequency Adjustable and its application |
| CN107769298B (en) * | 2017-09-25 | 2020-03-17 | 西安交通大学 | Dynamic frequency-adjustable super-surface-structure wireless charging device and wireless charging method |
| CN108232417A (en) * | 2017-12-20 | 2018-06-29 | 云南靖创液态金属热控技术研发有限公司 | A kind of liquid metal reconfigurable antenna |
| CN108417363A (en) * | 2018-02-10 | 2018-08-17 | 深圳大学 | A kind of liquid metal Wireless charging coil and preparation method thereof |
| CN108417363B (en) * | 2018-02-10 | 2021-05-11 | 深圳大学 | Liquid metal wireless charging coil and preparation method thereof |
| CN109480491A (en) * | 2018-11-08 | 2019-03-19 | 天津大学 | A kind of wireless charging desk using liquid metal |
| CN109986984A (en) * | 2019-05-13 | 2019-07-09 | 广东电网有限责任公司 | A kind of charging gun structure with voltage-limiting protection function |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |