CN204066972U - Film coil, film coil assembly and charging device - Google Patents
Film coil, film coil assembly and charging device Download PDFInfo
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- CN204066972U CN204066972U CN201420450909.2U CN201420450909U CN204066972U CN 204066972 U CN204066972 U CN 204066972U CN 201420450909 U CN201420450909 U CN 201420450909U CN 204066972 U CN204066972 U CN 204066972U
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Abstract
A kind of film coil, film coil assembly and charging device, film coil is made up of the film coiling of a helical structure, in helical structure, adjacent structure has a spacing, film coiling external connection has Single port, inner side has a coiling terminal, when energising port and coiling terminal, form an induction field; Two when having the film coil in same-handed direction to be formed at the both sides of a substrate, form a film coil assembly, the induction field in consistent direction is formed after energising, after the combination of one or more film coil assembly, can be used as charging device, in order to charge to a power device with device end film coil assembly.
Description
Technical field
The utility model relates to a kind of film coil, film coil assembly and charging device, there is specific live width in particular to a kind of and film coil, the film coil assembly of induction field can be produced through energising, and combine the charging device that multiple film coil assembly formed.
Background technology
Wireless charging, also known as do induction charging or non-contact inductive charging, be utilize near field to respond to, namely inductance coupling high, by power supply unit by Energy Transfer to power device.General technology for be provided with a magnetic core in charger, again in outside around copper coil, the electromagnetic field in some directions can be produced after energising, if impose alternating current can produce ac magnetic field, if there is another coil to receive ac magnetic field in power device, can be converted into electric energy, and power supply is to power device, or the rechargeable battery in it is charged.Owing to transmitting energy with inductance coupling high between charger and power device, there is no necessity that electric wire connects.
Traditional coil design is as shown in Figure 1A and Figure 1B.Figure 1A is the coil of general wireless charging module, and the number of turn is three circles, can produce an inductive electromagnetic field intensity after the energising of one end.In order to increase inductive electromagnetic field intensity, as shown in Figure 1B, can increase number of turns to six circle of planar coil, inductive electromagnetic field intensity can be increased in theory to twice.But line length can be made like this to increase more than twice, and have influence on the resistance value of coil entirety, reduce the efficiency of wireless charging.
Simultaneously, wireless charging still has some drawbacks to be overcome, as efficiency is lower slightly, also transformer is had in general charger, but wireless charging is with the composition of the first coil and the second coil, due to structurally restricted, efficiency of energy delivery can lower slightly general charger, add power supply first to be done again to wireless charging module after step-down, rectification and voltage stabilizing by external circuit, conversion efficiency also can be limited to the design of external circuit; Can generate heat serious because number of turn increase causes line to hinder lifting in wireless charging mode, itself and conventional charger have identical problem, even if when charging, can produce the phenomenon of heating.
Utility model content
Technical problem to be solved in the utility model is, there is provided one effectively can promote charge efficiency for the deficiencies in the prior art, and improve heating problem, film coil, film coil assembly, and the charging device utilizing this film coil to combine, the high-gain film coil design of wireless charging can be applied to, even if increase the resistance value that the number of turn also obviously can not promote coil entirety, effectively can promote charge efficiency, and not easily have the problem of heating.
Technical problem to be solved by this invention is achieved by the following technical solution:
A kind of film coil, be made up of the film coiling of a helical structure, film coiling is a conductor, in helical structure, adjacent structure has a spacing, and the outside of film coiling has the Single port of external connection, inner side then has a coiling terminal, through energising port and coiling terminal, can form an induction field.
In one embodiment, the film coiling centre of helical structure can be formed with a film magnetic core.
The utility model also provides a film coil assembly, and embodiment comprises a substrate, and forms the first film coil and second film coil of substrate both side surface; The first film coil is formed at the first surface of substrate, be made up of the first film coiling of a helical structure, in the helical structure of wherein this first film coiling, adjacent structure has a spacing, and the outside of the first film coiling has the first port of external connection, and inner side has the first coiling terminal; Second film coil is formed at the second surface of substrate, be made up of the second film coiling of a helical structure, in the helical structure of wherein this second film coiling, adjacent structure has a distance identical or different with this spacing, the outside of the second film coiling has the second port of external connection, and inner side has one second coiling terminal.
Above-mentioned the first film coil and the second film coil can one be electrically connected means and are electrically connected, wherein this first film coil and this second film coil are incorporated into two surfaces of this substrate, and the hand of spiral of the first film coiling is identical with the hand of spiral of the second film coiling, can form an induction field through the electric current between the first port and the second port.
Similarly, the first film coiling of helical structure and the second film coiling centre also can be formed with film magnetic core respectively.Or the first film coil and the second film coil also can be formed on a magnetic thin film respectively, then be incorporated on two surfaces of substrate; And in one embodiment, substrate is a Magnetic Substrate.
Through in conjunction with one or more film coil assembly, can form a charging device, in order to charge to the power device with device end film coil assembly, described charging device comprises:
One or more film coil assembly, wherein each film coil assembly comprises:
One substrate;
One the first film coil, be formed at the first surface of this substrate, be made up of the first film coiling of a helical structure, in the helical structure of wherein this first film coiling, adjacent structure has a spacing, the outside of this first film coiling has one first port of external connection, and inner side has one first coiling terminal;
One second film coil, be formed at the second surface of this substrate, be made up of the second film coiling of a helical structure, in the helical structure of wherein this second film coiling, adjacent structure has a distance identical or different with this spacing, the outside of this second film coiling has one second port of external connection, and inner side has one second coiling terminal; And
One electrical connection means, are electrically connected this first film coil and this second film coil;
One Power Management Unit, is electrically connected this one or more film coil assembly;
Wherein, this first film coil of each film coil assembly and this second film coil are incorporated into two surfaces of this substrate, and the hand of spiral of this first film coiling of film coil assembly is identical with the hand of spiral of this second film coiling; The induction field in consistent direction is formed after powered up on this charging device.
In order to technology, method and effect that the utility model is taked for reaching set object further can be understood, refer to following relevant detailed description of the present utility model, accompanying drawing, believe the purpose of this utility model, feature and feature, when being goed deep into thus and concrete understanding, but institute's accompanying drawings and annex only provide reference and explanation use, are not used for being limited the utility model.
Accompanying drawing explanation
Figure 1A and Figure 1B is the form of copper coil in prior art;
Fig. 2 A, 2B are the embodiment schematic diagram of the utility model film coil;
Fig. 3 A, 3B are the embodiment schematic diagram of the utility model film coil assembly;
Fig. 4 is another embodiment schematic diagram of the utility model film coil assembly;
Fig. 5 is another embodiment schematic diagram of the utility model film coil;
Fig. 6 is an embodiment schematic diagram again of the utility model film coil assembly;
Fig. 7 is an embodiment schematic diagram of the utility model film coil;
Fig. 8 is an embodiment schematic diagram of the utility model film coil assembly;
Fig. 9 is an embodiment schematic diagram again of the utility model film coil assembly;
Figure 10 is the embodiment schematic diagram of the utility model charging device;
Figure 11 is the oscillogram that transmits of transmitting terminal;
Figure 12 is the induced signal oscillogram of receiving terminal;
Figure 13 is the receiving terminal induced signal wave-shaped ring of two-side film membrane coil.
[description of reference numerals]
The first film coil 21 second film coil 22
The first film coiling 201 second film coiling 202
First port 203 second port 204
First coiling terminal 207 second coiling terminal 208
Coil connecting portion 301 substrate 30
Substrate 40 the first film coil 41
Second film coil 42 first port 403
Second port 404
Film coil 51,51 ' film coiling 501
Port 503,503 ' film magnetic core 505,505 '
Coiling terminal 507
Substrate 60 coil connecting portion 601
Magnetic thin film 70,70 ' film coil 71,71 '
Film coiling 701 port 703
Substrate 80 Magnetic Substrate 90
Charging device 10 film coil assembly 101
Power Management Unit 103 power supply 104
Power device 105 device end film coil assembly 107
Embodiment
The utility model proposes a kind of film coil, film coil assembly, that one makes slim and conductive film apparatus by thin film technique, the utility model also relates to the charging device utilizing this film coil to combine, particularly a kind of have specific live width and can produce the film coil of induction field through energising, the high-gain film coil design of wireless charging can being applied to, forming charging device through combining multiple film coil.
Even if one of the effect of film design increases the resistance value that the number of turn also obviously can not promote coil entirety, effectively can promote charge efficiency, such as charge efficiency is promoted to more than 80% from 70%, and not easily have the problem of heating.In addition, one of the embodiment of film coil can by coil slimming, and can three-dimensional, and can help the pliability (flexibility) of whole wireless charging device and slimming (miniaturization), such as thinness can be less than 0.5mm.
Fig. 2 A is one of embodiment schematic diagram of the utility model film coil, and the film coil of this example is the first film coil 21 with a hand of spiral, is made up of the first film coiling 201 of helical structure, forms the film coil of multiturn number.This film coiling is preferably the film be made up of conductor material, and in helical structure, adjacent structure has a spacing, makes the unlikely mutual coupling of electric signal or impact.The outside of this first film coiling 201 has the Single port of externally (external circuit) line, and as illustrated first port 203, inner side then has a coiling terminal, as illustrated first coiling terminal 207.
Relatively, Fig. 2 B then schematically illustrates the second contrary film coil 22 of a spiral way, be made up of the second film coiling 202 of helical structure, a spacing is had equally in adjacent structure, this spacing in fact can be consistent with the structure pitch of above-mentioned the first film coil 21, but also can be inconsistent.Similarly, have the second port 204 of external connection outside the second film coiling 202, inward end then has the second coiling terminal 208.
In above-mentioned film coil (the first film coil 21, second film coil 22), through providing electric power, electric current through each coil to external port (the first port 203, second port 204) to coiling terminal (the first coiling terminal 207, second coiling terminal 208), an induction field can be formed.
In design, the first film coil 21 and the second film coil 22 are under actual demand, and the spacing of the adjacent coiling in helical structure can be identical or different, also can comprise the identical number of turn or the different numbers of turn, and even area coil also can be different.
On material, form the film coiling 201 of the first film coil 21, second film coil 22,202 and goodly can be a bendable Copper thin film, and actual when realizing, and material is not limited to copper.The helical structure of film coil is a rectangular coil structure or a round screw thread structure.
According to embodiment, if combine above-mentioned film coil, such as on two surfaces of a substrate respectively in conjunction with first, second film coil above-mentioned, a film coil assembly can be formed, the utility model film coil Assemblies Example schematic diagram as shown in Figure 3A.
The profile of film coil assembly is shown as in figure, wherein there is a substrate 30, both side surface combines the first film coil 21 and the second film coil 22 respectively, and below presents two film coils 21, first port 203 and the second port 204 of the film coiling of 22, between the first film coil 21 with the second film coil 22, utilize one to be electrically connected means be electrically connected, it is such as a kind of coil connecting portion 301 having run through substrate 30, connect two film coils 21, the coiling terminal of 22, as Fig. 2 A, the first coiling terminal 207 and the second coiling terminal 208 shown in 2B.So, the two cluster film coils equaled in film coil assembly are connected, and are promoted induced electromotive force and induced electricity flow, therefore can have the induction field of twice under equal area, or under the demand of certain induction field, only need the area of half to reach.
Substrate 30 both sides combine the first film coil 21 and the second film coil 22, the helical structure that film coiling on coil is formed should be identical, the induction field in consistent direction can be formed through the electric current between the first port 203 with the second port 204, and the interstructural spacing of adjacent windings in helical structure also can essence identical, but also do not get rid of and have different spacing according to actual demand.
Fig. 3 B then shows the schematic perspective view of the utility model film coil assembly, from then on figure obviously can draw and be combined with the first film coil 21 and the second film coil 22 respectively in the both side surface of substrate 30, wherein the second film coil 22 is positioned on the downside of this figure substrate 30, and therefore part is represented by dotted lines.
In this example, the first film coil 21 has the first port 203 of external circuit connection, and the second port 204 of the second film coil 22, and both are formed in the segment distance that is staggeredly located on substrate 30.Have the first coiling terminal 207 and the second coiling terminal 208 inside film coil 21,22 respectively, and show as Fig. 3 A, coil connecting portion 301 has been electrically connected the first coiling terminal 207 and the second coiling terminal 208.Embodiment is separately had the first coiling terminal 207 and the second coiling terminal 208 to be connected on other external circuits by electric connection line respectively.
Fig. 4 is the utility model film coil embodiment schematic diagram, the both sides of this routine display base plate 40 combine the first film coil 41 and the second film coil 42 respectively, and the tail end of two film coils is respectively the first port 403 and the second port 404, the position of this example display first port 403 and the second port 404 across substrate 40 be overlapping.Both sides first port 403 of the high-gain three-dimensional film coil of this example display and the second port 404 are arranged at the lap position of substrate 40, can reduce the area of wiring place, in order to the realization of relevant apparatus miniaturization.
Furthermore, the film coiling centre of the helical structure of embodiment in film coil is separately had to be formed with a film magnetic core, embodiment schematic diagram as shown in Figure 5.
This example display film coiling 501 forms film coil 51 with a certain hand of spiral, coil outside end has Single port 503, inner side then has coiling terminal 507, specifically, film magnetic core 505 is included in coil middle part, this magnetisable material is better be can be a kind of strong magnetic material and formed, and can increase induced current and the induced electromotive force of film coiling 501; If be combined to form film coil assembly, then can increase induction field and the induced electromotive force of the first film coil and the second film coil respectively, and reduce eddy current losses.
Through organize vertical two groups there is the film coil 51 of film magnetic core 505 (as shown in Figure 5) after, embodiment schematic diagram as shown in Figure 6.The both side surface of this profile display base plate 60 is formed with the film coil 51,51 ' in identical winding structure direction respectively, the coiling end points of film coil 51,51 ' is the port 503,503 ' of external connection, and the center of coil has film magnetic core 505,505 ' respectively, similarly, coil connecting portion 601 is utilized mutually to contact by being electrically connected the coiling terminal of film coil 51,51 '.
In another embodiment, film coil can as Fig. 7 embodiment schematic diagram, be formed on magnetic thin film 70, magnetic thin film 70 can Ferrite material formed, effectively can increase induced current and the induced electromotive force of the film coil 71 that film coiling 701 is formed, and reduce eddy current losses.
The film coil 71 of this example can be made up of the film coiling 701 of helical structure equally, film coiling 701 is a conductor, structure shows wherein in helical structure adjacent structure there is a spacing, specifically, film coiling 701 two-end-point in film coil 71 all utilizes connecting circuit to form the port 703 externally connected respectively.Flow through the electric current of the two-end-point in port 703 equally by formation one induction field.
Then be an embodiment schematic diagram of the utility model film coil assembly in Fig. 8, a substrate 80 also first purchased by the film coil assembly of this example display, and substrate 80 both side surface combines the film coil 71,71 ' be formed on magnetic thin film 70,70 ' as Fig. 7 display respectively, namely both sides film coil 71,71 ' is formed on magnetic thin film 70,70 ' respectively, then is incorporated into substrate 80 across magnetic thin film 70,70 '.
Fig. 9 is an embodiment schematic diagram again of the utility model film coil assembly, this figure shows film coil 71,71 ' and is not first formed on magnetic thin film, but directly purchase a Magnetic Substrate 90, the multiturn number coil of the specific hand of spiral is combined respectively in the both sides of Magnetic Substrate 90.The Magnetic Substrate 90 made by iron oxygen magnetic material can effectively increase induced current and induced electromotive force.
In the film coil assembly of above-mentioned several embodiment display, no matter be have film magnetic core, or be formed on magnetic thin film or Magnetic Substrate, the first film coil wherein must be identical with the magnetic direction of the magnetic material that the second film coil is associated.And this few Artenkreis is slim and the form of cubic design can form high-gain solid (3D) film coil for wireless charging, contribute to the effect promoting induction field, and the flexible and slimming by wireless charging module, also significantly can reduce the thickness of overall relevant charging device or module.Material aspect, the material of film magnetic core, magnetic thin film or Magnetic Substrate in film coil assembly can be paramagnetic or soft magnetic material.
The embodiment of charging device can consult the schematic diagram shown in Figure 10.
Charging device 10 utilizes a carrier in conjunction with one or more (layer) film coil assembly, carrier is as an electronic device housing, a film coil assembly 101 wherein can be installed, after energising, produce induction field, the power device 105 that to, device end film coil assembly 107 can be housed charges.Film coil assembly 101 is as shown in the various embodiments described above, assembly comprises substrate and is formed at first, second film coil in substrate both side surface respectively, certain electric means electric connection can be connected between two cluster film coils, at least comprise and utilize coil connecting portion to be electrically connected coiling terminal in each film coil, or be electrically connected coiling terminal and the port of each film coil by an outside line.
In another embodiment, the carrier of charging device 10 can comprise the film coil assembly 101 of multiple array form, as figure shows, make a plane of charging device 10 produces uniform induction electromagnetic field, can the power device 105 be placed on charging device 10 be charged.
Be provided with a Power Management Unit 103 in charging device 10, be electrically connected one or more film coil assembly 101, one segment limit and connect power supply 104, can electrical arrangement in management devices.By Power Management Unit 103, the power device 105 that one or more film coil assembly 101 of energising can be opposite on charging device 10 charges, and this power device 105 planted agent is provided with corresponding device end film coil assembly 107, the induction field that can produce by film coil assembly 101 in sense charging device 10, the induced current of charging is produced at device end film coil assembly 107, and then to the rechargeable battery charging in power device 105, reach the object of wireless charging.
The embodiment form of several film coil that the utility model proposes below is proposed.
One film coil assembly includes two flat film coils (A face and B face), is separated by a substrate.Experimentally, the internal diameter of A face design is 2 centimetres, and the A face number of turn needs 10 to enclose the induction field amount obtained, and can design by means of dimensional double-sided, be 2 centimetres for internal diameter, and the A face number of turn 6 is enclosed and the B face number of turn 2 is enclosed and obtains identical induction field.Proof can reduce the mode of the number of turn and line resistance, utilizes design of the present utility model to obtain induction field.
In the design of single film coil, if only there is A face to design, induced electromotive force or induced current and internal coil diameter have inverse relation, have proportional relation with the number of turn.For example, if fixed coil wire diameter is 1 millimeter, thickness is 0.5 millimeter, and internal diameter is 2 centimetres, and now film coil responds by induction field with the number of turn 6 circle.With this understanding, this induction field is with the film coil equaling internal diameter 1.5 centimetres, the number of turn is 7 circles; Also with the film coil equaling internal diameter 1 centimetre, the number of turn 8 is enclosed.
Inverse relation is had according to above-mentioned induced electromotive force or induced current and internal coil diameter, proportional relation is had with the number of turn, therefore, if there is other film coil to adopt and above-mentioned film coil same concept, the coil in direction, same A face is set up in B face, effectively can reduce the overall wire number of turns and line resistance value, obtain identical induced electromotive force and the magnitude of current, promote wireless charging efficiency simultaneously.
Consult Figure 11, wherein show the oscillogram that transmits of the charging device transmitting terminal according to the film coil establishment of component that the utility model proposes, Figure 12 then shows the induced signal oscillogram (single-sided film coil) as power device receiving terminal.
The area table surrounded by Figure 11 and Figure 12 two figure Curves illustrates the power conversion efficiency of induction field, and calculate such as through following formula (1), the power conversion efficiency that result obtains is about 71.95%.Wherein transmitting terminal curve surrounds area A1, receiving terminal curved surface emission area A2.Wherein transverse axis is time shaft, and longitudinal axis amplitude represents signal energy.
A2/A1＝238/330.75＝0.7195＝71.95％ (1)
There is for film coil assembly the spiral structure of two-side film membrane coil again, the induced signal oscillogram of receiving terminal is as Figure 13, formula (2) surrounds area A1 receiving terminal curved surface emission area A3 for calculating transmitting terminal curve, the power utilization that result obtains is about 79.238%, shows better than the power conversion efficiency (71.95%) of single-sided film coil.
A3/A1＝262.08/330.75＝0.79238＝79.238％ (2)
According to embodiment, the line resistance disclosing the film coiling in the contained film coil of book is distributed as 0.0001 nurse difficult to understand (ohm) to 30 nurses difficult to understand, and better winding wire resistance can be 0.05-0.1 nurse (ohm)/square centimeter (cm difficult to understand
2); Wire diameter be 0.5 micron (um) to 10 millimeters (mm), better coil wire diameter is 0.45-2 millimeter; Line-spacing is the spacing of adjacent structure in helical structure, and line-spacing is 1 micron to 10 millimeters, and better winding wire distance is 5-170 micron; Film (as copper) thickness is between 0.3 micron to 2 millimeters, and preferred thickness is 10-140 micron; Pellicular front resistivity is 0.1 to 0.000006 nurse difficult to understand (ohm)/square centimeter (cm
2), better surface resistance is 0.00001-0.0003 nurse (ohm)/square centimeter (cm difficult to understand
2).
Wherein, with the concept of coil design, winding wire resistance is more low better, but consider the design of three-dimensional film coil, the substrate of high-gain three-dimensional film coil can be pliability glass, alumina plate, PCB soft/hardboard, ABS be soft/hardboard, PET film, PI film, (as: sputter Fe-Co-Ni-O or Fe-Mn-Zn-O or Fe-Ni-Zn-O iron oxygen (Ferrite) film are on pet substrate for magnetic thin film; Or the composite substrate that is combined with macromolecule resin of Fe-Co-Ni-O or Fe-Mn-Zn-O or Fe-Ni-Zn-O ferrite powder body) etc. low conduction high-k material.Also can with magnetic how rice iron oxygen superparamagnetic material that particle has promote induction field.
Film coil and magnetic thin film production method can realize by means of modes such as sputter, evaporation, plating, chemical plating, coating, recessed/letterpress, wire mark, gold-tinted processing procedure (exposure lithography), pad pasting, transfer printings.
Film coil of the present utility model, film coil assembly and charging device, due to the design of slimming, flexible and three-dimensional, form the high-gain three-dimensional film coil that can be used for wireless charging, according to disclosing the contained embodiment of book, film coil is mainly rendered as the form of round screw thread, but also do not get rid of other form designed according to actual demand, such as rectangular coil, but it also can be the spiral of other shapes.And in helical structure, annular or the rectangular configuration with one fixed width will be formed through design, the effect as traditional copper wire coil generation induction field can be produced after energising, and because less compared with the consume of traditional copper wire material resistance generation, effectively can promote the generating efficiency of unit are, and the shortcoming of film coil gain deficiency can be overcome.
The foregoing is only better possible embodiments of the present utility model, all equalizations made according to the utility model claims change and amendment, all belong in claims of the present utility model.
Claims (16)
1. a film coil, it is characterized in that, described film coil is made up of the film coiling of a helical structure, wherein this film coiling is a conductor, in this helical structure, adjacent structure has a spacing, the outside of this film coiling has the Single port of external connection, and the inner side of this film coiling has a coiling terminal; Wherein form an induction field through the electric current between this port and this coiling terminal.
2. film coil as claimed in claim 1, it is characterized in that, the line resistance of wherein this film coiling is distributed as 0.0001 nurse to 30 difficult to understand nurse difficult to understand; Wire diameter is 0.5 micron to 10 millimeters; Line-spacing is the spacing of adjacent structure in this helical structure, and line-spacing is 1 micron to 10 millimeters; And thickness is between 0.3 micron to 2 millimeters.
3. film coil as claimed in claim 2, it is characterized in that, wherein this film coiling is a bendable Copper thin film.
4. film coil as claimed in claim 3, it is characterized in that, wherein this helical structure is a rectangular coil structure or a round screw thread structure.
5. the film coil as described in any one of Claims 1-4, is characterized in that, wherein the film coiling centre of this helical structure is formed with a film magnetic core.
6. a film coil assembly, is characterized in that, described film coil assembly comprises:
One substrate;
One the first film coil, be formed at the first surface of this substrate, be made up of the first film coiling of a helical structure, in the helical structure of wherein this first film coiling, adjacent structure has a spacing, the outside of this first film coiling has one first port of external connection, and inner side has one first coiling terminal;
One second film coil, be formed at the second surface of this substrate, be made up of the second film coiling of a helical structure, in the helical structure of wherein this second film coiling, adjacent structure has a distance identical or different with this spacing, the outside of this second film coiling has one second port of external connection, and inner side has one second coiling terminal; And
One electrical connection means, are electrically connected this first film coil and this second film coil;
Wherein, this the first film coil and this second film coil are incorporated into two surfaces of this substrate, and the hand of spiral of this first film coiling is identical with the hand of spiral of this second film coiling, form an induction field through the electric current between this first port and this second port.
7. film coil assembly as claimed in claim 6, is characterized in that, be wherein electrically connected this first coiling terminal and this second coiling terminal with a coil connecting portion, this first film coil and this second film coil are electrically connected.
8. film coil assembly as claimed in claims 6 or 7, is characterized in that, wherein this first film coiling of this helical structure and this second film coiling centre are formed with a film magnetic core respectively.
9. film coil assembly as claimed in claim 6, it is characterized in that, wherein this first film coil and this second film coil are formed on a magnetic thin film respectively, then are incorporated on two surfaces of this substrate.
10. film coil assembly as claimed in claim 6, it is characterized in that, wherein this substrate is a Magnetic Substrate.
11. 1 kinds of charging devices, in order to charge to a power device with device end film coil assembly, it is characterized in that, described charging device comprises:
One or more film coil assembly, wherein each film coil assembly comprises:
One substrate;
One the first film coil, be formed at the first surface of this substrate, be made up of the first film coiling of a helical structure, in the helical structure of wherein this first film coiling, adjacent structure has a spacing, the outside of this first film coiling has one first port of external connection, and inner side has one first coiling terminal;
One second film coil, be formed at the second surface of this substrate, be made up of the second film coiling of a helical structure, in the helical structure of wherein this second film coiling, adjacent structure has a distance identical or different with this spacing, the outside of this second film coiling has one second port of external connection, and inner side has one second coiling terminal; And
One electrical connection means, are electrically connected this first film coil and this second film coil;
One Power Management Unit, is electrically connected this one or more film coil assembly;
Wherein, this first film coil of each film coil assembly and this second film coil are incorporated into two surfaces of this substrate, and the hand of spiral of this first film coiling of film coil assembly is identical with the hand of spiral of this second film coiling; The induction field in consistent direction is formed after powered up on this charging device.
12. charging devices as claimed in claim 11, is characterized in that, wherein with in the charging device of multiple this film coil assembly formation, this film coil assembly multiple is combined in a carrier with array form.
13. charging devices as claimed in claim 11, is characterized in that, in each film coil assembly, be electrically connected this first coiling terminal and this second coiling terminal with a coil connecting portion, this first film coil and this second film coil are electrically connected.
14. charging devices as claimed in claim 13, is characterized in that, in each film coil assembly, this first film coiling and this second film coiling centre of this helical structure are formed with a film magnetic core respectively.
15. charging devices as claimed in claim 11, is characterized in that, in each film coil assembly, this first film coil and this second film coil are formed on a magnetic thin film respectively, then are incorporated on two surfaces of this substrate.
16. charging devices as claimed in claim 11, is characterized in that, in each film coil assembly, this substrate is a Magnetic Substrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420450909.2U CN204066972U (en) | 2014-08-11 | 2014-08-11 | Film coil, film coil assembly and charging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420450909.2U CN204066972U (en) | 2014-08-11 | 2014-08-11 | Film coil, film coil assembly and charging device |
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| CN204066972U true CN204066972U (en) | 2014-12-31 |
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| CN201420450909.2U Expired - Fee Related CN204066972U (en) | 2014-08-11 | 2014-08-11 | Film coil, film coil assembly and charging device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105304312A (en) * | 2015-11-25 | 2016-02-03 | 上海安费诺永亿通讯电子有限公司 | Production method of wireless charge coil and wireless charge coil |
| 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 |
| CN106169785A (en) * | 2015-05-22 | 2016-11-30 | 三星电机株式会社 | Wireless charging system |
| CN106300686A (en) * | 2015-06-02 | 2017-01-04 | 介面光电股份有限公司 | Wireless charging device |
| WO2018233426A1 (en) * | 2017-06-23 | 2018-12-27 | 里程 | Wireless charging film and terminal |
| WO2021102710A1 (en) * | 2019-11-26 | 2021-06-03 | 华为技术有限公司 | Inductor and manufacturing method therefor, voltage conversion circuit and electronic device |
-
2014
- 2014-08-11 CN CN201420450909.2U patent/CN204066972U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106169785A (en) * | 2015-05-22 | 2016-11-30 | 三星电机株式会社 | Wireless charging system |
| CN106169785B (en) * | 2015-05-22 | 2020-08-18 | 株式会社Wits | Wireless charging system |
| CN106300686A (en) * | 2015-06-02 | 2017-01-04 | 介面光电股份有限公司 | Wireless charging device |
| CN105304312A (en) * | 2015-11-25 | 2016-02-03 | 上海安费诺永亿通讯电子有限公司 | Production method of wireless charge coil and wireless charge coil |
| CN105304312B (en) * | 2015-11-25 | 2017-11-21 | 上海安费诺永亿通讯电子有限公司 | The preparation method and Wireless charging coil of a kind of Wireless charging coil |
| WO2018233426A1 (en) * | 2017-06-23 | 2018-12-27 | 里程 | Wireless charging film and terminal |
| WO2021102710A1 (en) * | 2019-11-26 | 2021-06-03 | 华为技术有限公司 | Inductor and manufacturing method therefor, voltage conversion circuit and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20170811 |