CN110571033A - Wireless charging coil and wireless charging device - Google Patents
Wireless charging coil and wireless charging device Download PDFInfo
- Publication number
- CN110571033A CN110571033A CN201910825314.8A CN201910825314A CN110571033A CN 110571033 A CN110571033 A CN 110571033A CN 201910825314 A CN201910825314 A CN 201910825314A CN 110571033 A CN110571033 A CN 110571033A
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- Prior art keywords
- magnetic
- wireless charging
- magnetic sheet
- sheet layer
- coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
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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
-
- 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
-
- 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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
the invention discloses a wireless charging coil and a wireless charging device, wherein the wireless charging coil comprises: a coil assembly wound from litz wire; magnetic sheet group, magnetic sheet group includes first magnetic sheet layer and second magnetic sheet layer at least, first magnetic sheet layer set up in on the coil assembly, just first magnetic sheet layer is by a plurality of first magnetic cores concatenation, second magnetic sheet layer set up in first magnetic sheet layer deviates from one side of coil assembly, second magnetic sheet layer is used for shielding in the first magnetic sheet layer the gap of concatenation between the first magnetic core flows through in the first magnetic sheet layer the route of leaking of the magnetic line of force of concatenation gap between the first magnetic core slows down the magnetic line of force and leaks. According to the technical scheme, the leakage path of the magnetic force lines flowing through the splicing gaps among the first magnetic cores in the first magnetic plate layer is prolonged, the leakage of the magnetic force lines is slowed down, the magnetic field loss is reduced, and the transmission efficiency is improved.
Description
Technical Field
The invention relates to the field of wireless charging, in particular to a wireless charging coil and a wireless charging device.
Background
The wireless charging generally adopts an electromagnetic induction technology, and a magnetic core is an energy transfer key component, so that the magnetic field coupling is enhanced, the magnetic force line is prevented from leaking, the electromagnetic interference is reduced, and the energy loss in wireless transmission is effectively avoided; in the wireless charging technology at present, because wireless receiving arrangement power that charges (according to car wireless charging such as IEC national standard and relate to bigger power and different air gap grades such as 3.3kW/7kW 11kW/20kW/30 kW), the air gap is different, coil group size is different to lead to used whole magnetic sheet size also different, in order to make the magnetic core be applicable to the magnetic sheet of various sizes, set up every magnetic sheet and form through the concatenation of polylith individual layer magnetic core.
However, the magnetic core is too large in size, which causes undesirable phenomena such as deformation and cracks, and the magnetic line of force of the magnetic plate is large in leakage loss and serious in energy dissipation due to the splicing gap of the magnetic core.
Disclosure of Invention
The invention mainly aims to provide a wireless charging coil, which aims to prolong the leakage path of magnetic lines of force flowing through a splicing gap between first magnetic cores in a first magnetic plate layer, slow down the leakage of the magnetic lines of force, reduce the loss of a magnetic field and improve the transmission efficiency.
In order to achieve the above object, the present invention provides a wireless charging coil, including:
A coil assembly wound from litz wire;
Magnetic sheet group, magnetic sheet group includes first magnetic sheet layer and second magnetic sheet layer at least, first magnetic sheet layer set up in on the coil assembly, just first magnetic sheet layer is by a plurality of first magnetic cores concatenation, second magnetic sheet layer set up in first magnetic sheet layer deviates from one side of coil assembly, second magnetic sheet layer is used for shielding in the first magnetic sheet layer the gap of concatenation between the first magnetic core flows through in the first magnetic sheet layer the route of leaking of the magnetic line of force of concatenation gap between the first magnetic core slows down the magnetic line of force and leaks.
Optionally, the second magnetic plate layer is spliced by a plurality of second magnetic cores, and the plurality of first magnetic cores and the plurality of second magnetic cores are arranged in a staggered manner, so that the magnetic plate spliced by the second magnetic plate layer shields the spliced gap between the magnetic cores in the first magnetic plate layer.
Optionally, the coil assembly includes an output end and an input end, the input end is provided with a first lead, the output end is provided with a second lead, a lead groove is formed in a surface of the magnetic plate assembly facing the coil assembly, and the first lead penetrates through the lead groove and extends to the outside of the magnetic plate assembly.
Optionally, the wireless charging coil further comprises an outer shell, wherein a containing groove is concavely formed in the outer shell, the coil assembly and the magnetic plate assembly are arranged in the containing groove, and one side, deviating from the magnetic plate assembly, of the coil assembly is tightly attached to the bottom of the containing groove.
Optionally, the junction surface spliced among the plurality of first magnetic cores is an extended path of magnetic force lines, wherein the junction surface may be a chamfer surface, a circular arc surface, a regular junction surface and/or an irregular junction surface.
Optionally, the area of one side of the first magnetic plate layer close to the coil assembly is matched with the coverage area of the litz wires in the coil assembly.
The invention further provides a wireless charging device which comprises the wireless charging coil, wherein the wireless charging coil comprises a transmitting end or a receiving end.
According to the technical scheme, the second magnetic field layer is additionally arranged on the first magnetic plate layer and is used for shielding a spliced gap between the first magnetic cores in the first magnetic plate layer, so that when a magnetic field generated by the coil group forms a magnetic line loop in the first magnetic plate layer, when magnetic lines of force leak from the spliced gap between the first magnetic cores, the second magnetic plate layer can effectively shield the magnetic lines of force leaking from the first magnetic plate layer, the magnetic lines of force need to leak from the gap of the second magnetic field layer, the leakage path of the magnetic lines of force flowing through the spliced gap between the first magnetic cores in the first magnetic plate layer is prolonged, the leakage of the magnetic lines of force is slowed down, the magnetic field loss is reduced, and the transmission efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a wireless charging coil according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic view of magnetic lines of force of the wireless charging coil according to the present invention;
Fig. 4 is a schematic structural diagram of the inside of a wireless charging coil according to the present invention.
the reference numbers illustrate:
| Reference numerals | Name (R) | reference numerals | Name (R) |
| 11 | Wireless charging coil | 13 | Coil assembly |
| 12 | Magnetic plate group | 131 | magnetic line of force |
| 121 | First magnetic plate layer | 132 | First lead wire |
| 122 | Second magnetic plate layer | 133 | Second lead wire |
| 14 | Outer casing |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
in addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1-4, the present application provides a wireless charging coil 11, where the wireless charging coil 11 includes:
A coil assembly 13, said coil assembly 13 being wound from litz wire;
Magnetic plate group 12, magnetic plate group 12 includes first magnetic plate layer 121 and second magnetic plate layer 122 at least, first magnetic plate layer 121 set up in on the coil assembly 13, just first magnetic plate layer 121 is spliced by a plurality of first magnetic cores, second magnetic plate layer 122 set up in first magnetic plate layer 121 deviates from one side of coil assembly 13, second magnetic plate layer 122 is used for shielding in first magnetic plate layer 121 the gap of splicing between the first magnetic core to the extension flows through in first magnetic plate layer 121 the outer route of magnetic line of force 131 of splicing the gap between the first magnetic core slows down magnetic line of force 131 and leaks.
Wireless charging coil 1 adopts the electromagnetic wave induction principle to charge, respectively has a coil assembly 13 at wireless charging coil 1's sending end and wireless charging coil 1's receiving terminal, but, the coil assembly of wireless charging coil 1's sending end and wireless charging coil 1's receiving terminal is different, the transmitting end is used for launching electromagnetic induction signal to the consumer, in order to the consumer charges, the receiving terminal is used for receiving the electromagnetic induction signal that the charging equipment sent, specifically, the coil assembly 13 of sending end is connected wired power and is produced electromagnetic signal, and through the continuous energy coupling of coil assembly 13, thereby receiving terminal coil assembly 13 response sending end's electromagnetic signal produces the high frequency alternating current to through dress such as rectification and change with the battery charging, wherein, coil assembly 13 is formed with the mode of spiral by litz wire.
In order to make the magnetic field energy emitted by the coil assembly 13 at the transmitting end act on the coil assembly 13 at the receiving end as much as possible, the magnetic field emitted by the coil assembly 13 at the transmitting end needs to be guided, so that the coil assembly 13 at the transmitting end is provided with the magnetic plate assembly 12, the magnetic plate assembly 12 plays a role of magnetic conduction and provides a loop for the magnetic force lines 131 of the magnetic field at the transmitting end, and the gathered magnetic field acts on the coil assembly 13 at the receiving end as much as possible to achieve the maximum transmission efficiency; because the magnetic plate layer in the magnetic plate group 12 is formed by splicing a plurality of magnetic plates, and the magnetic plates are easy to deform or crack after being spliced, so that the gap at the splicing position of the magnetic plates is enlarged, so that the magnetic force lines 131 of the magnetic field flowing through the magnetic plate layer flow out from the gap, and the energy loss is serious, for this reason, the technical scheme of the embodiment adds the second magnetic plate layer 122 on the basis of the first magnetic plate layer 121, shields the gap spliced between the first magnetic cores in the first magnetic plate layer 121 through the second magnetic plate layer 122, the first magnetic plate layer 121 is positioned between the coil group 13 and the second magnetic plate layer 122, the first magnetic plate layer 121 provides a magnetic force line 131 loop for the magnetic field of the coil group 13, a part of the magnetic force lines 131 flow out from the gap between the first magnetic cores, due to the shielding of the second magnetic plate layer 122, the flowed-out magnetic force lines 131 continue to form the loop 131 in the second magnetic plate layer 122, and the flowed-out magnetic force lines need to pass through the gap of the, to slow down the leakage of the magnetic flux lines 131 flowing through the gaps between the first magnetic cores in the first magnetic plate layer 121.
The junction surfaces spliced among the plurality of first magnetic cores are magnetic line extending paths, wherein the junction surfaces can be inclined planes, arc surfaces, regular junction surfaces and/or irregular junction surfaces, so that the leakage path of the magnetic lines of force 131 flowing through the splicing gaps among the first magnetic cores in the first magnetic plate layer 121 is extended, the leakage of the magnetic lines of force 131 is reduced, the magnetic field loss is reduced, the transmission efficiency is improved, and the specific shape of the junction surfaces can be set according to the requirements of users.
It should be noted that the magnetic plate group 12 may be formed by stacking a plurality of magnetic plate layers, each magnetic plate layer shields a gap, so as to reduce energy loss flowing through, and the number of specific magnetic plate layers may be set according to user requirements; second magnetic sheet layer 122 can also be spliced into by polylith second magnetic core by monoblock magnetic sheet, and the concatenation mode of polylith second magnetic core and the concatenation mode of polylith first magnetic core are crisscross arranges to make polylith second magnetic core can the effectual gap of splicing between the first magnetic core of shielding polylith.
In the technical scheme of this embodiment, the second magnetic field layer is added on the first magnetic plate layer 121, and the second magnetic field layer is used for shielding the gap spliced between the first magnetic cores in the first magnetic plate layer 121, so that when the magnetic field generated by the coil assembly 13 forms a magnetic line 131 loop in the first magnetic plate layer 121, when the magnetic line 131 leaks from the gap spliced between the first magnetic cores, the second magnetic plate layer 122 can effectively shield the magnetic line 131 leaking from the first magnetic plate layer 121, so that the magnetic line 131 needs to leak from the gap of the second magnetic field layer, thereby extending the leakage path of the magnetic line 131 flowing through the gap spliced between the first magnetic cores in the first magnetic plate layer 121, slowing down the leakage of the magnetic line 131, reducing the magnetic field loss, and improving the transmission efficiency.
Further, the second magnetic plate layer 122 is spliced by a plurality of second magnetic cores, and the plurality of first magnetic cores and the plurality of second magnetic cores are arranged in a staggered manner, so that the magnetic plate spliced by the second magnetic plate layer 122 shields the spliced gap between the magnetic cores in the first magnetic plate layer 121.
In order to avoid the phenomena of deformation, cracks and the like caused when the size of the single magnetic core is too large, the second magnetic core layer 122 is spliced by the plurality of second magnetic cores, and the gaps spliced by the plurality of second magnetic cores and the gaps spliced by the plurality of first magnetic cores are arranged in a staggered manner, so that the magnetic plates spliced by the second magnetic core layer 122 can effectively shield the gaps spliced among the magnetic cores in the first magnetic core layer 121.
It should be noted that the joint surfaces spliced among the plurality of second magnetic cores are magnetic force line extension paths, where the joint surfaces may be chamfered surfaces, arc surfaces, regular joint surfaces and/or irregular joint surfaces, so as to extend the leakage path of the magnetic force lines 131 flowing through the splicing gap between the first magnetic cores in the first magnetic plate layer 121, slow down the leakage of the magnetic force lines 131, reduce the magnetic field loss and improve the transmission efficiency, and the shape of the joint surfaces may be set according to the user's requirements.
further, the coil assembly 13 includes an output end and an input end, the input end is provided with a first lead 132, the output end is provided with a second lead 133, a lead groove is formed in a surface of the magnetic plate assembly 12 facing the coil assembly 13, and the first lead 132 penetrates through the lead groove and extends to the outside of the magnetic plate assembly 12.
In the winding process of the coil assembly 13, a metal litz wire is usually used to wind inwards step by step, and a plurality of coils are formed in sequence, so that a litz wire segment is located closest to the center of the coil assembly 13, the litz wire segment is a first lead 132 of the coil assembly 13 and is connected with the input end of the coil assembly 13, and a litz wire segment at the output end of the outside of the coil assembly 13 is a second lead 133, so that the first lead 132 at the center of the coil assembly 13 needs to be led out to the outside of the magnetic plate through the magnetic plate to be connected with corresponding external equipment, that is, a notch for placing the first lead 132 of the coil assembly 13 needs to be formed on the first magnetic plate layer 121, a lead groove is formed in the surface of the first magnetic plate layer 121 facing the plurality of coils, the first lead 132 is inserted into the lead groove and extends to the outside of the first magnetic plate layer 121, and the size of the lead groove is enough to accommodate the first lead 132 of the coil assembly 13, and the bottom of the lead slot is still a magnetic plate, and the lead slot is only an opening at one end, so that the first lead 132 is still on the magnetic plate, the integrity of the whole first magnetic plate layer 121 is ensured, when the coil group 13 receives energy (namely electric energy) remotely, the problems of energy concentration and dissipation and local excessive heating at the lead slot are prevented, and meanwhile, the magnetic plate and the coil group 13 are ensured to be in a completely attached state, so that the energy loss and electromagnetic interference are effectively reduced, and the transmission efficiency is improved.
Further, wireless charging coil 11 still includes shell 14, shell 14 is sunken to be equipped with the storage tank, coil group 13 with magnetic plate group 12 places in the storage tank, just coil group 13 deviates from one side of magnetic plate group 12 is hugged closely the bottom of storage tank.
In order to increase electromagnetic induction's stability, place coil assembly 13 and magnetic plate group 12 in the storage tank that shell 14 was seted up, and coil assembly 13 deviates from the bottom of storage tank is hugged closely to one side of magnetic plate group 12 to the stationarity when reinforcing wireless charging coil 11 charges avoids the magnetic field interference of external metal contact with the result in.
Further, the area of the first magnet plate layer 121 on the side close to the coil assembly 13 is adapted to the coverage area of the litz wires in the coil assembly 13.
In order to improve the transmission efficiency, the area of the first magnet plate layer 121 on the side close to the coil assembly 13 is adapted to the coverage area of the litz wires in the coil assembly 13, so that the magnetic field energy emitted by the coil assembly 13 is guided out of the magnet plate layers as much as possible, and the magnetic field is concentrated to act on the coil on the receiving end as much as possible, so as to achieve the maximum transmission efficiency.
The invention further provides a wireless charging device, which includes the wireless charging coil as described above, and the specific structure of the wireless charging coil refers to the above embodiments, and since the wireless charging device adopts all technical solutions of all the above embodiments, the wireless charging device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and no further description is given here, the wireless charging coil includes a transmitting end, and the transmitting end is used for transmitting an electromagnetic induction signal to an electric device to charge the electric device, or the wireless charging coil further includes a receiving end, and the receiving end is used for receiving the electromagnetic induction signal transmitted by the charging device. When the wireless charging device comprises a wireless charging coil with the transmitting end, the wireless charging device is a wireless charger; when the wireless charging device comprises the wireless charging coil with the receiving end, the wireless charging device is an electric device.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A wireless charging coil, comprising:
A coil assembly wound from litz wire;
magnetic sheet group, magnetic sheet group includes first magnetic sheet layer and second magnetic sheet layer at least, first magnetic sheet layer set up in on the coil assembly, just first magnetic sheet layer is by a plurality of first magnetic cores concatenation, second magnetic sheet layer set up in first magnetic sheet layer deviates from one side of coil assembly, second magnetic sheet layer is used for shielding in the first magnetic sheet layer the gap of concatenation between the first magnetic core flows through in the first magnetic sheet layer the route of leaking of the magnetic line of force of concatenation gap between the first magnetic core slows down the magnetic line of force and leaks.
2. The wireless charging coil of claim 1, wherein the second magnetic sheet layer is spliced by a plurality of second magnetic cores, and a plurality of the first magnetic cores are arranged in a staggered manner with respect to a plurality of the second magnetic cores such that the spliced magnetic sheet of the second magnetic sheet layer shields a gap spliced between the magnetic cores in the first magnetic sheet layer.
3. The wireless charging coil of claim 1, wherein the coil assembly comprises an output end and an input end, the input end is provided with a first lead, the output end is provided with a second lead, a lead groove is formed in a surface of the magnet plate assembly facing the coil assembly, and the first lead penetrates through the lead groove and extends to the outside of the magnet plate assembly.
4. The wireless charging coil according to claim 1, further comprising a housing, wherein a containing groove is concavely formed in the housing, the coil assembly and the magnetic plate assembly are placed in the containing groove, and one side of the coil assembly, which faces away from the magnetic plate assembly, is tightly attached to the bottom of the containing groove.
5. The wireless charging coil of claim 1, wherein the junction spliced between the plurality of first magnetic cores is an extended path of magnetic lines of force, wherein the junction can be a chamfered surface, a circular arc surface, a regular junction, and/or an irregular junction.
6. The wireless charging coil of claim 1, wherein an area of a side of the first magnetic plate layer near the coil assembly is adapted to a coverage area of litz wire in the coil assembly.
7. a wireless charging apparatus, comprising the wireless charging coil of any of claims 1-6, the wireless charging coil comprising a transmitting end or a receiving end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825314.8A CN110571033A (en) | 2019-08-30 | 2019-08-30 | Wireless charging coil and wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825314.8A CN110571033A (en) | 2019-08-30 | 2019-08-30 | Wireless charging coil and wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110571033A true CN110571033A (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910825314.8A Pending CN110571033A (en) | 2019-08-30 | 2019-08-30 | Wireless charging coil and wireless charging device |
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| CN (1) | CN110571033A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115436882A (en) * | 2021-06-01 | 2022-12-06 | 广州极飞科技股份有限公司 | Rotary radar and unmanned aerial vehicle |
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| CN108431913A (en) * | 2016-03-14 | 2018-08-21 | 株式会社Ihi | Coil device |
| CN108878111A (en) * | 2018-06-05 | 2018-11-23 | 上海交通大学 | A kind of eclipsed form Wireless charging coil and electric energy transmission system |
| CN109450038A (en) * | 2018-12-11 | 2019-03-08 | 安洁无线科技（苏州）有限公司 | Wireless charging mould group and its production technology |
| CN209232528U (en) * | 2018-11-19 | 2019-08-09 | 北京麦思通科技有限公司 | A kind of composition metal diskette and wireless charging device |
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2019
- 2019-08-30 CN CN201910825314.8A patent/CN110571033A/en active Pending
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| CN108431913A (en) * | 2016-03-14 | 2018-08-21 | 株式会社Ihi | Coil device |
| CN108063044A (en) * | 2017-11-30 | 2018-05-22 | 浙江万安亿创电子科技有限公司 | A kind of Wireless charging coil and wireless charging system |
| CN108878111A (en) * | 2018-06-05 | 2018-11-23 | 上海交通大学 | A kind of eclipsed form Wireless charging coil and electric energy transmission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115436882A (en) * | 2021-06-01 | 2022-12-06 | 广州极飞科技股份有限公司 | Rotary radar and unmanned aerial vehicle |
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Application publication date: 20191213 |