CN111952056A - Circular winding wireless charging coil - Google Patents
Circular winding wireless charging coil Download PDFInfo
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- CN111952056A CN111952056A CN202010959978.6A CN202010959978A CN111952056A CN 111952056 A CN111952056 A CN 111952056A CN 202010959978 A CN202010959978 A CN 202010959978A CN 111952056 A CN111952056 A CN 111952056A
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- 238000004804 winding Methods 0.000 title claims description 45
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000002356 single layer Substances 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000003698 laser cutting Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
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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
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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
- H01F27/2871—Pancake coils
-
- 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
- H01F27/2876—Cooling
-
- 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
- H01F27/28—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/071—Winding coils of special form
- H01F41/074—Winding flat coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
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- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Computer Networks & Wireless Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention provides a round wire-wound wireless charging coil, which reduces the overall thickness of the whole coil, and has the advantages of simple structure and low manufacturing cost. The coil carrier comprises a coil carrier with an inner groove for placing a coil, wherein a center hole is formed in the center of the inner groove, a single-layer wound coil wound around the inner groove is attached to a first surface of a release film, a second surface of the release film and the wound coil are arranged in the inner groove in a pressing mode, an inner ring of the single-layer coil is provided with an inward-convex first inner contact wire, an outer ring of the wound coil is provided with an outward-convex second outer contact wire, the first inner contact wire and the second outer contact wire are arranged in an extending mode at the inner end and the outer end of the same diameter, a first welding contact structure is arranged in an inner area of the first inner contact wire relative to the center hole, an avoidance notch is formed in an outer edge area of the coil carrier relative to the second outer contact wire, and a second welding contact structure is arranged in an area of the second outer contact wire corresponding.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a round winding wireless charging coil.
Background
The wireless charging technology is a mode of utilizing airport induction principle to transmit electric power between two induction coils, the current conventional structure of wireless charging coil is FPC type wireless charging coil, when actual preparation, the preparation technology of this type of coil is complicated, and owing to need set up FPC layer and copper wire layer, so its thickness generally is 0.17mm thick, the development of the frivolous design of cell-phone is followed, the demand can not be satisfied to the thickness of FPC type wireless charging coil, and its position that needs each coil of location during owing to the preparation, its radial number of piles is more, make the preparation complicated, the cost of manufacture is high.
Disclosure of Invention
In order to solve the problems, the invention provides a round wire-wound wireless charging coil, which reduces the whole thickness of the whole coil, and has the advantages of simple structure and low manufacturing cost.
The utility model provides a circular shape wire winding wireless charging coil which characterized in that: the coil carrier comprises a coil carrier with an inner groove for placing a coil, wherein a center hole is formed in the center of the inner groove, a single-layer wound coil wound around the inner groove is attached to a first surface of a release film, a second surface of the release film and the wound coil are arranged in the inner groove in a pressing mode, an inner ring of the single-layer coil is provided with an inward-convex first inner contact wire, an outer ring of the wound coil is provided with an outward-convex second outer contact wire, the first inner contact wire and the second outer contact wire are arranged in an extending mode at the inner end and the outer end of the same diameter, a first welding contact structure is arranged in an inner area of the first inner contact wire relative to the center hole, an avoidance notch is formed in an outer edge area of the coil carrier relative to the second outer contact wire, and a second welding contact structure is arranged in an area of the second outer contact wire corresponding.
It is further characterized in that:
the thickness of the winding coil is 0.12 mm;
the material of the winding coil is copper;
the first inner contact wire is connected with a first welding contact structure after being subjected to point tin soldering relative to an end point of the inner area of the central hole;
the outer edge of the second outer contact wire is connected with a second welding contact structure after being subjected to point tin soldering;
and the first welding contact structure and the second welding contact structure are both hotbar welding structures.
A manufacturing method of a round wire-wound wireless charging coil is characterized by comprising the following steps: the coil carrier is manufactured in advance and comprises a center hole and an inner groove, the inner groove is annularly distributed on the periphery of the center hole, a first inner contact positioning strip is arranged between the center holes, a first positioning groove is arranged at the center of the first inner contact positioning strip, an avoiding notch is further formed in the periphery of the coil carrier, a second outer contact positioning strip is arranged on the avoiding notch, a second positioning groove is arranged on the second outer contact positioning strip, a metal wire is wound into a single-layer winding coil, an outer ring of the winding coil is provided with a second outer contact wire which protrudes outwards, the first inner contact wire and the second outer contact wire are arranged in an extending mode at the inner end and the outer end of the same diameter, the surface of the winding coil is attached to a release film, the winding coil is communicated with the release film and arranged in the inner groove, and an integral structure is formed by correspondingly assembling and pressing upper and lower coil carriers, The method comprises the steps of enabling a first inner contact line and a second outer contact line to be respectively positioned in a corresponding first positioning groove and a corresponding second positioning groove, then conducting laser paint stripping treatment on corresponding areas of the first inner contact line and the second outer contact line which are set as contact points through laser, then conducting tin dotting treatment on corresponding positions of a first contact of the first inner contact line and a second contact of the second outer contact line, then conducting hotbar welding on corresponding positions of the first contact and the second contact, and then cutting out a central area of the first inner contact positioning strip, a redundant central area part of the first inner contact positioning strip and a redundant second outer contact line through laser cutting.
It is further characterized in that:
measuring is needed after the winding of the winding coil is finished each time;
after the coil carrier is manufactured and before the coil carrier is ready to be arranged in a winding coil, bar codes need to be sprayed, scanned, recorded and recorded into a system;
after the whole structure is subjected to laser cutting, the whole structure is packaged and warehoused after appearance detection and LCR (liquid crystal display) test.
According to the wireless charging coil, the wire winding is directly adopted to form the winding coil, the head end and the tail end of the winding coil are respectively provided with the inward convex first inner contact wire and the outward convex second outer contact wire, the first inner contact wire and the second outer contact wire are arranged in an extending mode at the inner end and the outer end with the same diameter, the positioning is convenient in the subsequent contact forming process, the winding coil is directly pressed into the inner groove after being provided with the isolating film, the FPC layer does not exist, the overall thickness of the whole coil is reduced, the structure is simple, and the manufacturing cost is low; in addition, the metal wire is directly wound to form a winding coil, and the heat dissipation performance is good.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of an exploded view of the present invention;
FIG. 3 is a flow chart of a method of making the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the coil carrier comprises a coil carrier 1, an inner groove 11, a center hole 12, a first inner contact positioning strip 13, a second outer contact positioning strip 14, a winding coil 2, a first inner contact wire 21, a second outer contact wire 22, a release film 3, a first welding contact structure 4, an avoiding notch 5 and a second welding contact structure 6.
Detailed Description
A round wire-wound wireless charging coil is shown in figures 1 and 2: the coil carrier comprises a coil carrier 1 with a coil placing inner groove 11, a central hole 12 is formed in the center of the inner groove 11, a single-layer winding coil 2 which is wound is attached to a first surface of a release film 3, a second surface of the release film 3 and the winding coil 2 are arranged in the inner groove 11 in a pressing mode, an inner ring of the winding coil 2 is provided with an inward convex first inner contact wire 21, an outer ring of the winding coil 2 is provided with an outward convex second outer contact wire 22, the first inner contact wire 21 and the second outer contact wire 22 are arranged in an extending mode at the inner end and the outer end of the same diameter, a first welding contact structure 4 is arranged in the inner area of the first inner contact wire 21 relative to the central hole 12, an avoiding notch 5 is arranged in the outer edge area of the coil carrier 1 relative to the second outer contact wire 22, and a second welding contact structure 6 is arranged in the area of the second outer contact.
The thickness of the winding coil 2 is 0.12 mm;
the material of the winding coil 2 is copper;
the first inner contact wire 21 is soldered to the first solder contact structure 4 with respect to the end points of the inner area of the central hole 12;
the outer edge of the second outer contact wire 22 is connected with the second welding contact structure 6 after being subjected to point tin soldering;
the first and second solder contact structures 4, 6 are hotbar solder structures.
A method for manufacturing a round wound wireless charging coil, see fig. 3: the method comprises the steps of manufacturing a coil carrier 1 in advance, wherein the coil carrier 1 comprises a central hole 12 and inner grooves 11, the inner grooves 11 are annularly distributed on the periphery of the central hole 12, first inner contact positioning strips 13 are arranged between the central holes 12, first positioning grooves are formed in the centers of the first inner contact positioning strips 13, avoidance notches 5 are further formed in the periphery of the coil carrier 1, second outer contact positioning strips 14 are arranged on the avoidance notches 5, second positioning grooves are formed in the second outer contact positioning strips 14, then metal wires are wound into a single-layer winding coil 2, an inner ring of the winding coil 2 is provided with an inward convex first inner contact wire 21, an outer ring of the winding coil 2 is provided with an outward convex second outer contact wire 22, the first inner contact wire 21 and the second outer contact wire 22 are arranged in a mode that the inner end and the outer end of the same diameter are extended, then a release film 3 is attached to the surface of the winding coil 2, and the release film 3 is, The upper and lower coil carriers 1 are correspondingly assembled and pressed to form an integral structure, so that the first inner contact line 21 and the second outer contact line 22 are respectively positioned in the corresponding first positioning groove and the second positioning groove, then the corresponding areas of the first inner contact line 21 and the second outer contact line 22 which are set as contact points are subjected to laser paint stripping treatment through laser, then the corresponding positions of the first contact point of the first inner contact line 21 and the second contact point of the second outer contact line 22 are subjected to tin dotting treatment, then hotbar welding is carried out on the corresponding positions of the first contact point and the second contact point, and then the central area of the first inner contact point positioning strip 13, the redundant first inner contact line 21, the central area of the second outer contact point positioning strip 14 and the redundant second outer contact line 22 are cut through laser cutting.
Each time the winding of the winding coil 2 is finished, measurement is needed;
after the coil carrier 1 is manufactured and before the coil carrier is ready to be arranged in a winding coil, bar codes need to be sprayed, and a code scanning recording and inputting system needs to be arranged;
after the whole structure is subjected to laser cutting, the whole structure is packaged and warehoused after appearance detection and LCR (liquid crystal display) test.
The principle is as follows: the wire winding coil is directly formed by winding a metal wire, the head end and the tail end of the wire winding coil are respectively provided with a first inner contact wire protruding inwards and a second outer contact wire protruding outwards, the first inner contact wire and the second outer contact wire are arranged in an extending mode at the inner end and the outer end with the same diameter, so that the positioning is convenient in the subsequent contact forming process, the wire winding coil is directly pressed into the inner groove after being provided with the isolating film, and the FPC layer is not arranged, so that the overall thickness of the whole coil is reduced, the structure is simple, and the manufacturing cost is low; in addition, the metal wire is directly wound to form a winding coil, and the heat dissipation performance is good.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a circular shape wire winding wireless charging coil which characterized in that: the coil carrier comprises a coil carrier with an inner groove for placing a coil, wherein a center hole is formed in the center of the inner groove, a single-layer wound coil wound around the inner groove is attached to a first surface of a release film, a second surface of the release film and the wound coil are arranged in the inner groove in a pressing mode, an inner ring of the single-layer coil is provided with an inward-convex first inner contact wire, an outer ring of the wound coil is provided with an outward-convex second outer contact wire, the first inner contact wire and the second outer contact wire are arranged in an extending mode at the inner end and the outer end of the same diameter, a first welding contact structure is arranged in an inner area of the first inner contact wire relative to the center hole, an avoidance notch is formed in an outer edge area of the coil carrier relative to the second outer contact wire, and a second welding contact structure is arranged in an area of the second outer contact wire corresponding.
2. The round, wound wireless charging coil of claim 1, wherein the wound coil has a thickness of 0.12 mm.
3. The round, wound wireless charging coil of claim 1, wherein: the material of the winding coil is copper.
4. The round, wound wireless charging coil of claim 1, wherein: and the first inner contact wire is connected with a first welding contact structure after being subjected to point soldering relative to the end point of the inner area of the central hole.
5. The round, wound wireless charging coil of claim 4, wherein the outer edge of said second outer contact wire is spot-soldered to a second solder contact structure.
6. The round, wound wireless charging coil of claim 5, wherein: and the first welding contact structure and the second welding contact structure are both hotbar welding structures.
7. A manufacturing method of a round wire-wound wireless charging coil is characterized by comprising the following steps: the coil carrier is manufactured in advance and comprises a center hole and an inner groove, the inner groove is annularly distributed on the periphery of the center hole, a first inner contact positioning strip is arranged between the center holes, a first positioning groove is arranged at the center of the first inner contact positioning strip, an avoiding notch is further formed in the periphery of the coil carrier, a second outer contact positioning strip is arranged on the avoiding notch, a second positioning groove is arranged on the second outer contact positioning strip, a metal wire is wound into a single-layer winding coil, an outer ring of the winding coil is provided with a second outer contact wire which protrudes outwards, the first inner contact wire and the second outer contact wire are arranged in an extending mode at the inner end and the outer end of the same diameter, the surface of the winding coil is attached to a release film, the winding coil is communicated with the release film and arranged in the inner groove, and an integral structure is formed by correspondingly assembling and pressing upper and lower coil carriers, The method comprises the steps of enabling a first inner contact line and a second outer contact line to be respectively positioned in a corresponding first positioning groove and a corresponding second positioning groove, then conducting laser paint stripping treatment on corresponding areas of the first inner contact line and the second outer contact line which are set as contact points through laser, then conducting tin dotting treatment on corresponding positions of a first contact of the first inner contact line and a second contact of the second outer contact line, then conducting hotbar welding on corresponding positions of the first contact and the second contact, and then cutting out a central area of the first inner contact positioning strip, a redundant central area part of the first inner contact positioning strip and a redundant second outer contact line through laser cutting.
8. The method of claim 7, wherein the method comprises: each time the winding of the wound coil is completed, the measurement is required.
9. The method of claim 7, wherein the method comprises: after the coil carrier is manufactured and before the coil carrier is ready to be arranged in a winding coil, a bar code needs to be sprayed, scanned, recorded and recorded into a system.
10. The method of claim 7, wherein the method comprises: after the whole structure is subjected to laser cutting, the whole structure is packaged and warehoused after appearance detection and LCR (liquid crystal display) test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010959978.6A CN111952056A (en) | 2020-09-14 | 2020-09-14 | Circular winding wireless charging coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010959978.6A CN111952056A (en) | 2020-09-14 | 2020-09-14 | Circular winding wireless charging coil |
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| Publication Number | Publication Date |
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| CN111952056A true CN111952056A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010959978.6A Pending CN111952056A (en) | 2020-09-14 | 2020-09-14 | Circular winding wireless charging coil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992523A (en) * | 2021-04-23 | 2021-06-18 | 昆山联滔电子有限公司 | Coil assembling process |
| CN113066658A (en) * | 2021-03-25 | 2021-07-02 | 昆山联滔电子有限公司 | Assembly method for narrow and thin coils |
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| CN112992523B (en) * | 2021-04-23 | 2023-03-24 | 昆山联滔电子有限公司 | Coil assembling process |
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