CN107871600B - Coil module and wireless power transmission device using the same - Google Patents
Coil module and wireless power transmission device using the same Download PDFInfo
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- CN107871600B CN107871600B CN201710412737.8A CN201710412737A CN107871600B CN 107871600 B CN107871600 B CN 107871600B CN 201710412737 A CN201710412737 A CN 201710412737A CN 107871600 B CN107871600 B CN 107871600B
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- coil
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- wireless power
- magnetic field
- power transmission
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- 230000005540 biological transmission Effects 0.000 title claims description 25
- 238000010586 diagram Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/0066—Printed inductances with a magnetic layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/0073—Printed inductances with a special conductive pattern, e.g. flat spiral
Abstract
The invention discloses a coil module and a wireless power transmitting device using the same. A wireless power transmitting apparatus according to an aspect of the present invention includes a coil module therein, and may include: a first surface provided at one side of the coil module for forming a first magnetic field generated by the coil module; and a second face provided at the other side of the coil block for forming a second magnetic field generated by the coil block. The coil module may include a magnetic plate, and a first coil and a second coil respectively formed on different surfaces of the magnetic plate and having different resonance characteristics from each other.
Description
Technical Field
The present invention relates to a coil module and a wireless power transmitting apparatus using the same.
Background
With the development of wireless technology, wireless technology has been variously developed to transmit not only data but also power and the like. In particular, a wireless power transmission technology capable of charging power to an electronic device in a non-contact state has recently been developed.
As such wireless power charging technology is applied to various electronic devices, a wireless power transmitting device capable of supporting wireless charging for the various electronic devices is required.
Such a wireless power transmission device based on the wireless power transmission technology is applicable to various environments such as an automobile interior, and thus there is a demand for miniaturization.
[ Prior art documents ]
[ patent document ]
(patent document 1) Korean patent laid-open publication No. 10-1482934
(patent document 2) Korean patent laid-open publication No. 10-1443007
(patent document 3) Japanese laid-open patent publication No. 2007-087223
Disclosure of Invention
An object of one embodiment of the present invention is to provide a wireless power transmission device that can support charging of various electronic devices and can also provide miniaturization of the wireless power transmission device.
One aspect of the present invention provides a wireless power transmitting apparatus. The wireless power transmitting apparatus includes a coil module therein, and includes: a first surface provided at one side of the coil module for forming a first magnetic field generated by the coil module; and a second face provided at the other side of the coil block for forming a second magnetic field generated by the coil block. The coil module may include a magnetic plate, and a first coil and a second coil respectively formed on different surfaces of the magnetic plate and having different resonance characteristics from each other.
Another aspect of the present invention provides a coil module. The coil module is a coil module that can be applied to a wireless power transmitting apparatus, and may include: a magnetic plate; a first coil provided on one surface of the magnetic plate and configured to generate a first magnetic field; and a second coil provided on the other surface of the magnetic plate and configured to generate a second magnetic field. The first coil and the second coil may have different resonance characteristics from each other.
The solutions to the technical problems described above do not list all the features of the invention. Various aspects for solving the technical problems of the present invention will be understood in more detail with reference to specific embodiments described in detail below.
A wireless power receiving apparatus according to an aspect of the present invention can support charging of various electronic devices. Also, there is an effect that miniaturization of the wireless power transmitting apparatus can be provided.
Drawings
Fig. 1a and 1b are diagrams illustrating a wireless power transmitting apparatus according to one embodiment of the present invention.
Fig. 2 is a block configuration diagram for explaining a wireless power transmitting apparatus according to an embodiment of the present invention.
Fig. 3 to 7 are diagrams showing various examples of a coil module according to an embodiment of the present invention.
Fig. 8a and 8b are diagrams illustrating a wireless power transmitting apparatus according to another embodiment of the present invention.
Fig. 9 is a diagram illustrating a wireless power transmitting apparatus according to still another embodiment of the present invention.
Fig. 10a and 10b are diagrams illustrating a wireless power transmitting apparatus according to still another embodiment of the present invention.
Description of the symbols
100: wireless power transmitting device
110: magnetic plate
120: first coil
130: second coil
310: switch part
320: resonance part
330: control unit
340: power supply unit
200: first electronic device
210: first wireless power receiving device
201: second electronic device
211: second wireless power receiving device
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the drawings.
However, the embodiment of the present invention may be modified into various other embodiments, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully describe the present invention to those having average knowledge in the technical field to which the present invention pertains.
In addition, the meaning of the terms described in the present invention should be understood as follows. When a component is referred to as being "connected" to another component, it is to be understood that the component may be directly connected to the other component, but other components may be interposed therebetween. Conversely, when a component is referred to as being "directly connected" to another component, it is understood that no other component exists therebetween. In addition, other expressions for explaining the relationship between constituent elements, such as "between" and "immediately adjacent intermediate" or "adjacent" and "directly adjacent", etc., should be interpreted in the same manner.
Fig. 1a and 1b are diagrams illustrating a wireless power transmitting apparatus according to one embodiment of the present invention.
Referring to fig. 1a and 1b, the wireless power transmission device 100 includes a first side 101 and a second side 102, and may include a coil module inside between the first side 101 and the second side 102.
The coil module may include: a magnetic plate 110; the first coil 120 and the second coil 130 are formed on different surfaces of the magnetic plate, respectively, and have different resonance characteristics.
The magnetic plate 110 is provided between the first surface 101 and the second surface 102.
The first coil 120 is provided on one surface of the magnetic plate 110 adjacent to the first surface 101, and generates a first magnetic field.
The second coil 130 is provided on the other surface of the magnetic plate 110 adjacent to the second surface 102, and generates a second magnetic field.
Accordingly, the wireless power transmitting apparatus 100 can form different magnetic fields on both surfaces.
In the illustrated example, the first surface 101 has a different area from the second surface 102, but may be formed in a shape corresponding to the shape of the second surface 102. That is, in the illustrated example, since the first side 101 charges the smartphone, it may have a large area compared to the second side 102, which charges a smaller wearable device. That is, the charging target can be intuitively recognized by making the area of each surface different according to the size of the electronic device to be charged for each surface.
However, this is only an exemplary example, and the first face 101 and the second face 102 may have the same shape or may have different shapes from each other according to the embodiment.
The first face 101 is provided at one side of the coil module, and may form a first magnetic field generated by the coil module. The second face 102 is provided at the other side of the coil module and may form a second magnetic field generated by the coil module.
As described above, magnetic fields can be formed on both sides of the wireless power transmitting apparatus 100, and power can be wirelessly transmitted to the electronic devices 200 and 201 using such magnetic fields.
The method of transmitting the wireless power by the wireless power transmitting apparatus 100 is not limited. For example, the wireless power transmission apparatus 100 may magnetically induce power to wirelessly transmit using a magnetic field. As another example, the wireless power transmission device 100 may transmit power wirelessly by magnetic resonance using a magnetic field.
The following situation is illustrated in the example shown in fig. 1 a: the wireless power receiving device 210 of the smartphone 200 is wirelessly supplied with power by using the first magnetic field formed on the first surface 101.
In addition, the example shown in fig. 1a illustrates the following situation: the wireless power receiving device 211 of the wearable apparatus 201 is wirelessly powered by the second magnetic field formed on the second surface 102.
As described above, the wireless power transmission device 100 according to one embodiment of the present invention forms magnetic fields independent of each other on both sides, respectively, whereby various electronic apparatuses can be charged by one wireless power transmission device 100.
In addition, in the illustrated example, the first magnetic field and the second magnetic field have different resonance characteristics from each other. That is, it can be known that the first coil for generating the first magnetic field satisfies the first resonance characteristic for performing wireless charging with the smartphone as an object; the second coil for generating the second magnetic field satisfies a second resonance characteristic for performing wireless charging with the wearable device as an object.
In addition, the above-described embodiments are exemplary embodiments, and the first magnetic field and the second magnetic field formed on both sides of the wireless power transmitting apparatus 100 may also have the same resonance characteristics, which may provide better efficiency in, for example, an example in which a smartphone is placed on both sides while providing charging, or the like.
Fig. 2 is a block configuration diagram for explaining a wireless power transmitting apparatus according to an embodiment of the present invention.
Referring to fig. 2, the wireless power transmitting apparatus 100 may include a switching part 310, a resonance part 320, a control part 330, and a power supply part 340.
The power supply section 340 is inputted with a direct current power supply or an alternating current power supply, and can thereby generate a predetermined direct current power supply.
The control part 330 may control a switching operation of the switching part 310, and the switching part 310 may perform the switching operation on the dc power supplied from the power supply part 340, thereby generating an ac current and supplying it to the resonance part 320.
The resonance part 320 may include a coil module. As described above, the coil module includes the coils formed on both surfaces of the magnetic substrate, and according to the embodiment, the coil module may function as the resonance part 320. Alternatively, the resonance unit 320 may include a coil module, a capacitor electrically connected to the coil module, and the like.
Fig. 3 to 7 are diagrams illustrating various examples of a coil module according to an embodiment of the present invention, which are explained below with reference to fig. 3 to 7.
Referring to fig. 3, the coil module may include a magnetic body plate 110, a first coil 120, and a second coil 130.
The magnetic plate 110 may be used to increase the field strength of the magnetic field or to increase the binding coefficient. The magnetic plate 110 may be made of a material having magnetic permeability, for example, a material such as nanocrystal, ferrite, or amorphous material (amophorus).
The first coil 120 is disposed on one surface of the magnetic plate 110 and can form a first magnetic field.
The second coil 130 is disposed on the other surface of the magnetic plate 110 and can form a second magnetic field.
The first coil 120 and the second coil 130 may be implemented by various forms of coils. For example, the first coil 120 and the second coil 130 may be spiral coils formed by fixing conductive wires in a spiral shape. As another example, the first coil 120 and the second coil 130 may be patterned coils formed by a conductor formed on or in a substrate. In addition, the first coil 120 and the second coil 130 may be implemented in various ways.
As described above, the coil module includes the different coils for forming the different magnetic fields on the two surfaces of the one magnetic plate 110, respectively, thereby achieving slimness and miniaturization of the wireless power transmitting apparatus for forming the plurality of magnetic fields.
Fig. 4 is a diagram showing an example of a coil module provided with a protrusion.
Referring to fig. 4, the coil module may include a magnetic body plate 110, a first coil 120, and a second coil 130.
The magnetic plate 110 may include a protrusion including a protrusion 111 formed at an outer side of the first coil 120 and a protrusion 112 formed at an outer side of the second coil 130. That is, according to an embodiment, the magnetic plate 110 may include various protrusions 111, 112.
The protrusions 111, 112 may perform a function for fixing the position of the first coil 120 or the second coil 130. Alternatively, the protrusions 111, 112 may perform the function of a frame for forming the first coil 120 or the second coil 130 on the magnetic plate 110.
Fig. 5 and 6 are diagrams showing an example of a coil module in which a coil is formed by a plurality of unit coils.
First, referring to fig. 5, the coil module may include a magnetic plate 110, a first coil and a second coil 130.
The first coil 121, 122, 123 may include: the plurality of unit coils 121, 122, 123 are electrically connected to each other and operate simultaneously or individually to form a first magnetic field.
The plurality of unit coils 121, 122, and 123 may be operated by selecting any one of them according to the position of the wireless power receiving apparatus, or may be operated all at once, thereby generating a wide and strong magnetic field.
Referring to fig. 6, the first coils 121, 122, 123 may include: the plurality of unit coils 121, 122, 123 are electrically connected to each other and operate simultaneously or individually to form a first magnetic field.
The second coils 131, 132, 133 may include: the plurality of unit coils 131, 132, and 133 are electrically connected to each other and operate simultaneously or individually to form a second magnetic field.
As described above, the coils of the coil module can be implemented in various modified forms.
Fig. 7 is a diagram showing an example of a coil module including magnetic body plates including magnetic body layers different from each other.
Referring to fig. 7, the coil module may include a magnetic body plate 110, a first coil 120, and a second coil 130.
The magnetic plate 110 may include a first magnetic body layer 113 and a second magnetic body layer 114.
The first magnetic layer 113 is formed of a first magnetic body, and may be provided with a first coil 120 on one surface.
The second magnetic layer 114 is formed of a second magnetic body different from the first magnetic body, and may be provided with a second coil 130 on one surface.
Since the first magnetic body and the second magnetic body have different magnetic properties, in the present embodiment, different magnetic bodies can be provided according to the wireless charging target, and thus the magnetic properties of the electronic device can be further subdivided, thereby providing an effective charging effect.
Fig. 8a and 8b are diagrams illustrating a wireless power transmitting apparatus according to another embodiment of the present invention.
Referring to fig. 8a and 8b, the wireless power transmission device 100 may include a main body part 140, a hinge part 150, and a fixed body part 160.
The body 140 includes the coil modules 110, 120, and 130 and first and second faces.
The fixing body part 160 includes a horizontal support surface and fixes the hinge part 150.
The hinge part 150 is coupled to one side of the body part 140 and the fixing body part 160, so that the body part 140 can be rotated and driven. The body 140 is driven to rotate by the hinge 150, and thereby the upper surface of the body can be changed from the second surface to the first surface or from the first surface to the second surface.
Fig. 8a illustrates an example as follows: the first surface is an upper surface, and the wireless power receiving device 210 of the smartphone 200 is wirelessly charged in conjunction with the first coil 120.
In the state of fig. 8a, if the main body part 140 is rotated by the hinge part 150, the second face becomes an upper surface as in the state of fig. 8b, and thus the wireless power receiving device 211 of the wearable device 201 can perform wireless charging in conjunction with the second coil 130.
The hinge part 150 can adjust the angle of the main body part 140. That is, the hinge part 150 may be coupled to one side of the main body part 140 and the fixed body part 160 to adjust the inclination angles of the main body part 140 and the fixed body part 160.
Fig. 9 is a diagram illustrating a wireless power transmitting apparatus according to still another embodiment of the present invention.
Fig. 9 shows an example as follows: the wireless power transmission device 100 is applied to an area where a groove is formed, such as an automobile or a desk.
In the illustrated example, electronic devices different from each other may be disposed on both sides of the wireless power transmission apparatus 100, respectively, whereby the first coil 120 may charge the first electronic device 200 and the second coil 130 may charge the second electronic device 201.
In the above example, the wireless power transmitting apparatus 100 may charge the first electronic device 200 and the second electronic device 201 at the same time.
That is, the first coil 120 may operate simultaneously with the second coil 130 and wirelessly transmit power to the first wireless power receiving device using the first magnetic field.
Also, the second coil 130 may operate simultaneously with the first coil 120 and wirelessly transmit power to a second wireless power receiving apparatus different from the first wireless power receiving apparatus using a second magnetic field.
Fig. 10a and 10b are diagrams illustrating a wireless power transmitting apparatus according to still another embodiment of the present invention.
The example shown in fig. 10a and 10b is a double-sided wireless power transmitting apparatus 100, and shows an example in which a curved portion or a concave-convex portion is provided in a case corresponding to an outer shape of an electronic device as a charging target.
As illustrated, both sides of the wireless power transmitting apparatus 100 are used to charge different electronic devices, respectively, the first coil 120 may charge the first electronic device 200, and the second coil 130 may charge the second electronic device 201.
Both surfaces of the wireless power transmission apparatus 100 may include a curve or a concave-convex corresponding to at least a part of an outer shape of an electronic device that is a charging target, respectively, so that the electronic device may be stably placed on the wireless power transmission apparatus 100.
In the illustrated example, the wireless power transmission device 100 is formed in a hemispherical shape, however, this is only an exemplary embodiment and may be formed in various forms.
It is obvious to those having ordinary skill in the art to which the present invention pertains that the present invention is not limited to the above-described embodiments and drawings, but is defined by the claims, and that various changes and modifications can be made to the structure of the present invention without departing from the scope of the technical idea of the present invention.
Claims (12)
1. A wireless power transmitting apparatus includes a coil module therein,
and, includes:
a first surface provided at one side of the coil module, forming a first magnetic field generated by the coil module; and
a second surface provided at the other side of the coil block to form a second magnetic field generated by the coil block,
the coil module includes:
a magnetic plate provided between the first surface and the second surface; and
a first coil that is provided on one surface of the magnetic plate adjacent to the first surface and generates the first magnetic field; and
a second coil that is provided on the other surface of the magnetic plate adjacent to the second surface and generates the second magnetic field,
the magnetic plate includes:
a first magnetic body layer formed of a first magnetic body and provided with the first coil on one surface; and
a second magnetic body layer formed of a second magnetic body different from the first magnetic body and provided with the second coil on one surface,
the first coil and the second coil have different resonance characteristics from each other,
the first magnetic layer and the second magnetic layer have different magnetic characteristics from each other.
2. The wireless power transmission device of claim 1, wherein the magnetic plate comprises:
a protrusion formed at an outer side of the first coil or the second coil.
3. The wireless power transmitting apparatus according to claim 1,
the first coil satisfies a first resonance characteristic for wireless charging with a smartphone as an object;
the second coil satisfies a second resonance characteristic for wireless charging targeted for the wearable device.
4. The wireless power transmission apparatus of claim 1, wherein the first coil comprises:
and a plurality of unit coils electrically connected to each other and simultaneously or individually operated to form the first magnetic field.
5. The wireless power transmitting apparatus according to claim 1,
the first coil operates simultaneously with the second coil, and the first coil utilizes the first magnetic field to wirelessly transmit power to a first wireless power receiving device;
the second coil operates simultaneously with the first coil, and the second coil utilizes the second magnetic field to wirelessly transmit power to a second wireless power receiving device different from the first wireless power receiving device.
6. The wireless power transmitting apparatus according to claim 1,
the first face has a different area than the second face, but is shaped to correspond to the shape of the second face.
7. The wireless power transmission apparatus of claim 1, wherein the wireless power transmission apparatus comprises:
a main body portion including the coil module, the first surface, and the second surface;
a hinge part coupled to one side of the main body part to rotationally drive the main body part; and
a fixing body part including a horizontal support surface and fixing the hinge part.
8. The wireless power transmission apparatus of claim 1, wherein the wireless power transmission apparatus comprises:
a body portion including the first face and the second face;
a fixed body including a horizontal support surface; and
and a hinge part combined with one side of the main body part and the fixed body part and used for adjusting the inclination angles of the main body part and the fixed body part.
9. A coil module, as a coil module applicable to a wireless power transmission device, comprising:
a magnetic plate;
a first coil provided on one surface of the magnetic plate and generating a first magnetic field; and
a second coil provided on the other surface of the magnetic plate and generating a second magnetic field,
wherein the magnetic plate includes:
a first magnetic body layer formed of a first magnetic body and provided with the first coil on one surface; and
a second magnetic body layer formed of a second magnetic body different from the first magnetic body and provided with the second coil on one surface,
the first coil and the second coil have different resonance characteristics from each other,
the first magnetic layer and the second magnetic layer have different magnetic characteristics from each other.
10. The coil module of claim 9, wherein the magnetic plate comprises:
a protrusion formed at an outer side of the first coil or the second coil.
11. The coil module of claim 9, wherein the first coil comprises:
and a plurality of unit coils electrically connected to each other and simultaneously or individually operated to form the first magnetic field.
12. The coil module of claim 9,
the first coil satisfies a first resonance characteristic for wireless charging with a smartphone as an object;
the second coil satisfies a second resonance characteristic for wireless charging targeted for the wearable device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160121451A KR20180032349A (en) | 2016-09-22 | 2016-09-22 | Coil module and apparatus for transmiting power wirelessly using the same |
| KR10-2016-0121451 | 2016-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107871600A CN107871600A (en) | 2018-04-03 |
| CN107871600B true CN107871600B (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710412737.8A Active CN107871600B (en) | 2016-09-22 | 2017-06-05 | Coil module and wireless power transmission device using the same |
Country Status (2)
| Country | Link |
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| KR (1) | KR20180032349A (en) |
| CN (1) | CN107871600B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711956A (en) * | 2018-04-27 | 2018-10-26 | 苏州威斯东山电子技术有限公司 | A kind of multi-frequency for wireless charging emits end-coil module |
| US11437861B2 (en) * | 2018-08-22 | 2022-09-06 | Apple Inc. | Test object holder |
| CN109036796A (en) * | 2018-08-30 | 2018-12-18 | 江苏金羿先磁新材料科技有限公司 | A kind of two-sided wireless charging transmitting terminal mould group |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203826559U (en) * | 2013-12-27 | 2014-09-10 | 无锡村田电子有限公司 | Coil antenna and antenna device |
| CN104604092A (en) * | 2012-09-06 | 2015-05-06 | 松下知识产权经营株式会社 | Contactless power-supply system, contactless adapter, and power-supply device |
| CN205070620U (en) * | 2015-06-25 | 2016-03-02 | 薛寿贞 | Wireless charger |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4802630B2 (en) * | 2005-09-22 | 2011-10-26 | 大日本印刷株式会社 | Non-contact type data carrier inlet manufacturing method, non-contact type data carrier inlet roll manufacturing method, and non-contact type data carrier manufacturing method |
| KR101443007B1 (en) * | 2014-01-15 | 2014-09-23 | (주)디아이디 | Mobile Device Cradle having Wireless Charging Function |
-
2016
- 2016-09-22 KR KR1020160121451A patent/KR20180032349A/en unknown
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2017
- 2017-06-05 CN CN201710412737.8A patent/CN107871600B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604092A (en) * | 2012-09-06 | 2015-05-06 | 松下知识产权经营株式会社 | Contactless power-supply system, contactless adapter, and power-supply device |
| CN203826559U (en) * | 2013-12-27 | 2014-09-10 | 无锡村田电子有限公司 | Coil antenna and antenna device |
| CN205070620U (en) * | 2015-06-25 | 2016-03-02 | 薛寿贞 | Wireless charger |
Also Published As
| Publication number | Publication date |
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| CN107871600A (en) | 2018-04-03 |
| KR20180032349A (en) | 2018-03-30 |
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