CN108847721A - A kind of wireless charging device, wireless charging system and electronic equipment - Google Patents
A kind of wireless charging device, wireless charging system and electronic equipment Download PDFInfo
- Publication number
- CN108847721A CN108847721A CN201810663045.5A CN201810663045A CN108847721A CN 108847721 A CN108847721 A CN 108847721A CN 201810663045 A CN201810663045 A CN 201810663045A CN 108847721 A CN108847721 A CN 108847721A
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- Prior art keywords
- wireless charging
- substrate
- charging device
- coil
- route
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- 239000000758 substrate Substances 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005674 electromagnetic induction Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 13
- 230000008859 change Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- 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
- H02J50/15—Circuit arrangements or systems for wireless supply or distribution of electric power using ultrasonic waves
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
Abstract
The present invention provides a kind of wireless charging device, wireless charging system and electronic equipment, and wherein wireless charging device includes insulating substrate, and the substrate is provided with coil and magnetostriction element；The coil has solenoid structure, and the magnetostriction element is set in the space that the coil is surrounded, and the magnetostriction element, can be along the axial direction stretching motion of the coil in the case where receiving ultrasonic wave.In the present invention, by the way that coil and magnetostriction element are arranged in wireless charging device, it is based on magnetostrictive effect and electromagnetic induction principle, wireless charging device can convert electric energy for sound, due to sound can transmission range farther out, so as to realize remote wireless charging.
Description
Technical field
The present invention relates to wireless charging technical field more particularly to a kind of wireless charging devices, wireless charging system and electricity
Sub- equipment.
Background technique
Wireless charging technology is as a kind of new charging technique, gradually in the electrical equipments such as electric car, mobile phone, plate
It is applied.Traditional wireless charging technology is the wireless charging technology of electromagnetic induction, however, the wireless charging skill of electromagnetic induction
In art, need for the transmitting terminal of the receiving end of charging equipment and wireless charging device to be aligned and be just able to achieve charging, it is chargeable away from
From shorter, and during the charging process, user is not available equipment, and the flexibility of wireless charging is poor.
As it can be seen that existing wireless charging technology has that chargeable distance is shorter.
Summary of the invention
The embodiment of the present invention provides a kind of wireless charging device, wireless charging system and electronic equipment, to solve existing nothing
Line charge power technology has that chargeable distance is shorter.
In order to solve the above-mentioned technical problem, the invention is realized in this way：
In a first aspect, the embodiment of the invention provides a kind of wireless charging device, including insulating substrate, the substrate setting
There are coil and magnetostriction element；
The coil has solenoid structure, and the magnetostriction element is set in the space that the coil is surrounded,
The magnetostriction element, can be along the axial direction stretching motion of the coil in the case where receiving ultrasonic wave.
Second aspect, the embodiment of the invention provides a kind of wireless charging systems, including supersonic generator and above-mentioned nothing
Line charge electrical part.
The third aspect, the embodiment of the invention provides a kind of electronic equipment, including power storage element and above-mentioned wireless charger
The coil of part, the wireless charging device is electrically connected with the power storage element.
In the embodiment of the present invention, by the way that coil and magnetostriction element are arranged in wireless charging device, stretched based on mangneto
Contracting effect and electromagnetic induction principle, wireless charging device can convert electric energy for sound, due to sound can transmission range farther out, from
And remote wireless charging may be implemented.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of wireless charging device provided in an embodiment of the present invention；
Fig. 2 is one of the structural schematic diagram of coil of wireless charging device provided in an embodiment of the present invention；
Fig. 3 is the second structural representation of the coil of wireless charging device provided in an embodiment of the present invention；
Fig. 4 is the third structural representation of the coil of wireless charging device provided in an embodiment of the present invention；
Fig. 5 be in Fig. 2 A-A to cross-sectional view；
Fig. 6 is the cross-sectional view of B-B direction in Fig. 3；
Fig. 7 is the corresponding cross-sectional view for being provided with magnetostriction element of Fig. 5；
Fig. 8 is the corresponding cross-sectional view for being provided with magnetostriction element of Fig. 6.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art's acquired every other implementation without creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of wireless charging device, including insulating substrate 1, substrate 1 is provided with
Coil 2 and magnetostriction element 3；
Coil 2 has solenoid structure, and magnetostriction element 3 is set in the space that coil 2 is surrounded, magnetostriction member
Part 3, can be along the axial direction stretching motion of coil 2 in the case where receiving ultrasonic wave.
The wireless charging device of the embodiment of the present invention realizes wireless charging using magnetostrictive effect and electromagnetic induction principle
Electricity.Wherein, magnetostrictive effect refers to, under magnetic fields, length changes magnetostriction element 3, can be subjected to displacement
And do work, alternatively, magnetostriction element 3 under action of alternating magnetic field, can occur to uphold and shorten repeatedly, to generate mechanical vibration
Dynamic or sound wave.As it can be seen that using magnetostrictive effect, magnetostriction element 3 can convert electromagnetic energy into sound energy or mechanical energy (or
Person, acoustic intelligence or mechanical displacement information).On the contrary, sound energy or mechanical energy can also be converted into electromagnetic energy by magnetostriction element 3
(or electromagnetic information).
In the embodiment of the present invention, magnetostriction element 3 is set in coil 2, applies sound wave to magnetostriction element 3,
In the space that coil 2 is surrounded stretching motion will occur for magnetostriction element 3, when magnetostriction element 3 is along the axis of coil 2
When stretching motion occurs to direction, it can make to change by the magnetic flux of coil 2, to generate induced potential.In this way, this
Sound can be converted into electric energy by the wireless charging device of inventive embodiments, realize wireless charging.
Since ultrasonic wave has the characteristics that frequency height, good directionality, long transmission distance, penetration capacity be strong, energy is concentrated, because
This, in the embodiment of the present invention, applies ultrasonic wave on magnetostriction element 3, to realize the conversion of ultrasonic wave to electric energy.
Below to the wireless charging using ultrasonic wave of the wireless charging technology of existing electromagnetic induction and the embodiment of the present invention
It compares.
Firstly, needing transmitting terminal and receiving end to be aligned in the wireless charging technology of existing electromagnetic induction, charging distance is short,
It is, for example, less than 10 centimetres, user is not available during the charging process, and charging flexibility is poor；And the wireless charging of the embodiment of the present invention
, it can be achieved that remote charge in power technology, such as charging distance, up to 4 meters, charging flexibility is higher.
Secondly, in the wireless charging technology of existing electromagnetic induction, when between transmitting terminal and receiving end there are when metal, metal
Inductive loop can be generated, so as to cause fever, charge efficiency is reduced, increases security risk, also, this makes charging equipment can not
Use metal shell；And in the wireless charging technology of the embodiment of the present invention, the penetration capacity of ultrasonic wave is strong, can penetrate metal, makes
It is higher with performance and security performance.
In addition, in the wireless charging technology of existing electromagnetic induction, in order to avoid transmitting terminal to neighbouring metallic transmission energy and
Cause fever to cause safety accident, transmitting terminal needs to have foreign matter identification capability, transmitting terminal it is more demanding；And the present invention is implemented
In the wireless charging technology of example, since there is no the above problem, therefore transmitting terminal is without having foreign matter identification capability.
In the embodiment of the present invention, rare earth intermetallic compound magnetostriction materials are can be used in magnetostriction element 3, for example,
With (Tb, Dy) Fe2Compound is the alloy of matrix, and thickness can be at 25 μm or so.Above-mentioned magnetostriction materials have：Energy conversion
High-efficient (being greater than or equal to 70%), elasticity modulus is controllable, the response time is short (only microsecond), frequency characteristic is good
(can work under low frequency, tens to 1000 hertz), working band is wide, stability is good, high reliablity, Magnetostriction not
Time to time change, without fatigue and without overheating failure the features such as.
Wireless charging device in the embodiment of the present invention needs to be used cooperatively with supersonic generator in wireless charging.
In this way, when supersonic generator emits ultrasonic wave, the axial direction of the magnetostriction element 3 of wireless charging device along coil 2
Repeatedly stretching motion occurs, to make to change by the magnetic flux of coil 2, and generates induced potential.Work as wireless charging
When the coil 2 of device connect to form closed circuit with rechargeable battery, 2 both ends of coil export alternating current, and are ultimately converted to straight
Galvanic electricity is stored in rechargeable battery.
In the embodiment of the present invention, coil 2 can be formed by way of 1 cabling of substrate.As shown in Figures 2 to 4, substrate
1 the first face interval is provided at least two first line 21, and the second face interval of substrate 1 is provided at least two second routes
22；Substrate 1 is arranged at intervals at least two conducting routes 23, at least two conducting equal through substrates 1 of route 23, and will at least two
A first line 21 and at least two second routes 22 successively alternately connect, and form coil 2 as shown in Figure 4.Wherein, substrate 1
The first face and substrate 1 the second face be substrate 1 two apparent surfaces.As shown in figure 4, the both ends of coil 2 can be considered coil 2
Two electrodes, i.e. first electrode 24 and second electrode 25, first electrode 24 and second electrode 25 are used for the output of electric signal.
First line 21 and the second route 22 can lead to overetched mode and be set on substrate 1, can also pass through wiring
Mode be set on substrate 1, the embodiment of the present invention is not construed as limiting this.
In the embodiment of the present invention, as shown in Fig. 5 to Fig. 8, cavity 4 can be opened up along the axial direction of coil 2 in substrate 1,
Magnetostriction element 3 is provided in cavity 4, magnetostriction element 3 can be along 4 stretching motion of cavity.
In the embodiment of the present invention, substrate 1 can pass through adhesive layer by the first insulating medium layer 11 and the second insulating medium layer 12
13 connections；In this way, can open a window in adhesive layer 13, to form above-mentioned cavity 4.Magnetostriction member is set in the cavity 4 of formation
Part 3.The height of cavity 4 can be at 25 μm or so, to provide the space of 3 stretching motion of magnetostriction element, the length of cavity 4
The length of magnetostriction element 3 can be greater than.
By two insulating medium layers for being set as connecting by adhesive layer 13 by substrate 1, in this way convenient on adhesive layer 13
It opens a window, above-mentioned magnetostriction element 3 is arranged, production is simple.
In the embodiment of the present invention, substrate 1 can be spaced apart equipped at least two via holes 5, and at least two via holes 5 penetrate through
Substrate 1, the interior setting route of at least two via holes 5, forms at least two conducting routes 23.
It, can be by pouring into conductive slurries, such as copper slurry or silver paste in via hole 5, to be formed in the embodiment of the present invention
The conducting route 23 interconnected with first line 21 and the second route 22；It can also be using in 5 interior cabling of via hole, to be formed and the
The conducting route 23 of one route 21 and the interconnection of the second route 22；Can also using in via hole 5 deposit conductive material by the way of,
To form the conducting route 23 interconnected with first line 21 and the second route 22.The embodiment of the present invention is not construed as limiting this.
In the embodiment of the present invention, at least two first line 21 can be the route being parallel to each other, at least two second routes
22 can also be the route being parallel to each other, and at least two conducting routes 23 can also be the route being parallel to each other.
Under the set-up mode, the spacing between the adjacent first line 21 of any two is equal, and any two are adjacent
The second route 22 between spacing be equal, the spacing between the adjacent conducting route 23 of any two is also equal.Pass through
The coil 2 that the set-up mode is formed, entire coil 2 have preferable consistency.
Optionally, the both ends of each first line 21 are arranged with one end face of two adjacent second routes 22 respectively,
At least two conducting routes 23 are each perpendicular to 1 surface of substrate.
In the embodiment of the present invention, a coil 2 and a magnetostriction element 3 form an energy conversion unit, substrate 1
Space set has the energy conversion array (not shown) formed by least two energy conversion unit parallel connections.
In order to make to improve wireless charging efficiency, at least two can be arranged on substrate 1 by coil 2 and magnetostriction element
3 energy conversion units formed, in this way, the energy formed including at least two energy conversion unit parallel connections can be formed on substrate 1
Conversion array.It is when including at least two energy conversion units, the coil 2 of each energy conversion unit is successively in parallel.
In the embodiment of the present invention, substrate 1 can be the substrate of printed circuit board.In this way, can be by the nothing of the embodiment of the present invention
Line charge electrical part is directly integrated in electronic equipment (such as digital camera, charger baby, electronic toy, mobile phone, computer, plate, pen
Remember this computer etc.) in printed circuit board.Wherein, printed circuit board may include hardboard PCB (Printed Circuit
Board), it also may include Rigid Flex RFPC (Rigid-Flex PCB), can also include flexible circuit board FPC
(Flexible Printed Circuit)。
In the embodiment of the present invention, substrate 1 can be flexible soft board.In this way, wireless charging device can be for bending performance
Wireless charging device, so as to be suitable for more complex installation space and use space.
The embodiment of the present invention further relates to a kind of wireless charging system, which includes supersonic generator and nothing
Line charge electrical part.
Any wireless charging device in the embodiment of the present invention can be applied to above-mentioned wireless charging system, and can
Reach identical technical effect, to avoid repeating, this is not repeated.
The embodiment of the present invention further relates to a kind of electronic equipment, which includes power storage element and above-mentioned wireless charger
The coil 2 of part, above-mentioned wireless charging device is electrically connected with power storage element.
Wherein, power storage element can be battery, two electrodes of battery respectively with the coil 2 of wireless charging device first
Electrode 24 and second electrode 25 connect, and form closed circuit, so that the electric current for flowing through coil 2 is transmitted to battery, with realization pair
The charging of battery.
Here, specific electrical connection between power storage element and wireless charging device can use existing wireless charging
This is not specifically described in corresponding technical solution in technology, the embodiment of the present invention.
Any wireless charging device in the embodiment of the present invention can be applied to above-mentioned electronic equipment, and can reach
Identical technical effect does not repeat this to avoid repeating.
In the embodiment of the present invention, above-mentioned electronic equipment can be computer (Computer), mobile phone, tablet computer (Tablet
Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital
Assistant, abbreviation PDA), mobile Internet access electronic equipment (Mobile Internet Device, MID), wearable device
(Wearable Device), electronic reader, navigator, digital camera etc..
In addition, any wireless charging device in the embodiment of the present invention applies also for electric car.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of wireless charging device, which is characterized in that including insulating substrate, the substrate is provided with coil and magnetostriction member
Part；
The coil has solenoid structure, and the magnetostriction element is set in the space that the coil is surrounded, described
Magnetostriction element, can be along the axial direction stretching motion of the coil in the case where receiving ultrasonic wave.
2. wireless charging device according to claim 1, which is characterized in that the first face interval of the substrate be provided with to
Few two first line, the second face interval of the substrate are provided at least two second routes；
The substrate is arranged at intervals at least two conducting routes, and at least two conductings route penetrates through the substrate, and
At least two first line and at least two second route are successively alternately connected, the coil is formed；
Axial direction in the substrate along the coil opens up cavity, and the magnetostriction element is provided in the cavity,
The magnetostriction element can be along the cavity stretching motion；
Wherein, the first face of the substrate and the second face of the substrate are two apparent surfaces of the substrate.
3. wireless charging device according to claim 2, which is characterized in that the substrate include the first insulating medium layer and
Second insulating medium layer, first insulating medium layer are connect with second insulating medium layer by adhesive layer；
Adhesive layer windowing between first insulating medium layer and second insulating medium layer, forms the cavity.
4. wireless charging device according to claim 2, which is characterized in that the substrate is spaced apart leads equipped at least two
Through-hole, at least two via hole penetrate through the substrate, route are arranged at least two via hole, and formation is described extremely
Few two conducting routes.
5. wireless charging device according to claim 2, which is characterized in that at least two first line is mutually flat
Capable route, at least two second route is the route being parallel to each other, and at least two conductings route is to be parallel to each other
Route.
6. wireless charging device according to claim 5, which is characterized in that the both ends of each first line respectively with two
One end face of the second adjacent route is arranged, and at least two conductings route is each perpendicular to the substrate surface.
7. wireless charging device according to any one of claim 1 to 6, which is characterized in that the coil and the magnetic
Telescopic element is caused to form an energy conversion unit, the substrate is arranged at intervals with by least two energy conversion unit parallel connection shapes
At energy conversion array.
8. wireless charging device according to claim 2, which is characterized in that the substrate is the substrate of printed circuit board.
9. a kind of wireless charging system, which is characterized in that including supersonic generator and such as any one of claims 1 to 8 institute
The wireless charging device stated.
10. a kind of electronic equipment, which is characterized in that including power storage element and wireless as claimed in any one of claims 1-9 wherein
The coil of charging device, the wireless charging device is electrically connected with the power storage element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663045.5A CN108847721B (en) | 2018-06-25 | 2018-06-25 | Wireless charging device, wireless charging system and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663045.5A CN108847721B (en) | 2018-06-25 | 2018-06-25 | Wireless charging device, wireless charging system and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108847721A true CN108847721A (en) | 2018-11-20 |
| CN108847721B CN108847721B (en) | 2021-01-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810663045.5A Active CN108847721B (en) | 2018-06-25 | 2018-06-25 | Wireless charging device, wireless charging system and electronic equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN108847721B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821870A (en) * | 2007-10-03 | 2010-09-01 | Feonic公共有限公司 | Transducer for vibration absorbing, sensing and transmitting |
| CN102684276A (en) * | 2012-04-01 | 2012-09-19 | 北京大学 | Underwater non-contact power supply method and device |
| CN202586514U (en) * | 2012-04-06 | 2012-12-05 | 天津工业大学 | EMSR electromagnetic energy transmitting and receiving system |
-
2018
- 2018-06-25 CN CN201810663045.5A patent/CN108847721B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821870A (en) * | 2007-10-03 | 2010-09-01 | Feonic公共有限公司 | Transducer for vibration absorbing, sensing and transmitting |
| CN102684276A (en) * | 2012-04-01 | 2012-09-19 | 北京大学 | Underwater non-contact power supply method and device |
| CN202586514U (en) * | 2012-04-06 | 2012-12-05 | 天津工业大学 | EMSR electromagnetic energy transmitting and receiving system |
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|---|---|
| CN108847721B (en) | 2021-01-08 |
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