CN204732526U - A kind of NFC antenna - Google Patents
A kind of NFC antenna Download PDFInfo
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- CN204732526U CN204732526U CN201520266355.5U CN201520266355U CN204732526U CN 204732526 U CN204732526 U CN 204732526U CN 201520266355 U CN201520266355 U CN 201520266355U CN 204732526 U CN204732526 U CN 204732526U
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Abstract
The utility model discloses a kind of NFC antenna, comprise carrier, loop construction, ink layer and conductive metal layer; Described loop construction, ink layer and conductive metal layer are directly printed on the carrier by tampon-printing process successively; Described loop construction comprises coil body and two feedback points, described coil body comprise around multi-turn coil, described around multi-turn coil in, the end extension and first of outermost one turn coil is presented and is a little communicated with, the end of the interior turn coil and second present a little between region be provided with described ink layer, multi-turn coil in the middle of the region overlay at described ink layer place, for the described middle multi-turn coil that insulate; Described conductive metal layer is arranged on described ink layer, and one end connects the end of the interior turn coil, and the other end connects described second feedback point.NFC antenna of the present utility model, thinner thickness, and cost is lower.
Description
[technical field]
The utility model relates to novel NFC antenna.
[background technology]
NFC antenna at present on intelligent communication equipment is mainly formed based on flexible PCB (Flexible PrintedCircuit is called for short FPC) technique, and this technique is the printed circuit board (PCB) with figure that a kind of flexible parent metal is made.The NFC antenna obtained is made up of carrier and antenna structure, is bonded together between carrier and antenna structure by binding agent, and antenna structure comprises the four-layer structures such as Copper Foil, base material, Copper Foil, ink and superposes formation successively.Also namely existing NFC antenna stacking glue+Copper Foil+base material+Copper Foil+ink on antenna carrier amounts to 5 Rotating fields, thickness is at more than 170um, cause existing NFC antenna thickness comparatively large, do not meet electronics miniaturization, lightening application demand, and cost is higher.
[utility model content]
Technical problem to be solved in the utility model is: make up above-mentioned the deficiencies in the prior art, propose a kind of NFC antenna, thinner thickness, and cost is lower.
Technical problem of the present utility model is solved by following technical scheme:
A kind of NFC antenna, comprises carrier, loop construction, ink layer and conductive metal layer; Described loop construction, ink layer and conductive metal layer are directly printed on the carrier by tampon-printing process successively; Described loop construction comprises coil body and two feedback points, described coil body comprise around multi-turn coil, described around multi-turn coil in, the end extension and first of outermost one turn coil is presented and is a little communicated with, the end of the interior turn coil and second present a little between region be provided with described ink layer, multi-turn coil in the middle of the region overlay at described ink layer place, for the described middle multi-turn coil that insulate; Described conductive metal layer is arranged on described ink layer, and one end connects the end of the interior turn coil, and the other end connects described second feedback point.
The beneficial effect that the utility model is compared with the prior art is:
NFC antenna of the present utility model, comprise the loop construction be arranged on antenna carrier, ink layer and conductive metal layer, directly be printed on carrier by tampon-printing process when arranging, be equipped with the position annexation of each assembly, middle multi-turn coil is insulated well, Inside coil, external coil and two present some conductings and form an entirety, thus form the assembly of complete coil as antenna.The antenna of said structure, antenna carrier only arranges coil layer, ink layer and conductive metal layer three-decker, thus entire physical thickness reduces significantly relative to the thickness of the NFC antenna of prior art, antenna thickness is thinner, cost is lower.And the three-decker on antenna directly prints formation by tampon-printing process, simple for production, the cost of manufacture of antenna is also reduced.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the NFC antenna of the utility model embodiment;
Fig. 2 is the top plan view of the loop construction of the NFC antenna of the utility model embodiment;
Fig. 3 is the schematic cross-section of the loop construction of the NFC antenna of the utility model embodiment.
[embodiment]
Contrast accompanying drawing below in conjunction with embodiment the utility model is described in further details.
As shown in Figure 1, be the structural representation of the NFC antenna of this embodiment.NFC antenna comprises carrier 1, loop construction 2, ink layer 3 and conductive metal layer 4.Loop construction 2, ink layer 3 and conductive metal layer 4 successively bat printing on this carrier 1, stacked arrangement arrange on the carrier 1.Carrier 1 can be the housing of intelligent communication device, such as the housing of mobile phone, panel computer, also can be the flat board of polymethyl methacrylate or zirconia material.
As shown in Figures 2 and 3, top plan view and the schematic cross-section of loop construction is respectively.Loop construction comprises coil body and two feedback points.Coil body comprise around multi-turn coil, have 5 turn coil 201,202,203,204 and 205 shown in figure respectively.Described around multi-turn coil in, the end of outermost one turn coil 205 extends and first presents and a little 208 to be communicated with, end and second region of presenting a little between 209 of the interior turn coil 201 are provided with ink layer 3, multi-turn coil in the middle of the region overlay at ink layer 3 place, i.e. intermediate coil 202,203 and 204.Cover middle multi-turn coil by ink layer 3, middle multi-turn coil and the interior turn coil 201, first are presented and a little insulate between 209.Conductive metal layer 4 is arranged on ink layer 3, and one end connects the end of the interior turn coil 201, and the other end connects the second feedback point 209.
The NFC antenna of said structure, during making, can first by NFC antenna ground floor, namely loop construction 2 bat printing is on carrier 1, such as, on mobile communication equipment.Coil can select metal paste, such as silver slurry.Then cover ink layer 3 at the respective regions of coil, can adopt the light-curable ink that sealing is good and shielding is good, such as UV curable ink (UV ink) is as ink layer herein.Through solidifying after a while, after drying, increase conductive metal layer 4, such as conductive silver slurry layer at ink layer top bat printing.The interior turn coil connected in the loop construction of ground floor by conductive metal layer 4 presents point with outside second, makes the complete connection of loop construction road into a line.
The NFC antenna of this embodiment, compared with the NFC antenna obtained, forms and is improved to antenna carrier+coil layer+ink+conductive metal layer by traditional antenna carrier+glue+Copper Foil+base material+Copper Foil+ink with common FPC technique.The novel NFC antenna composition number of plies is less, and thinner thickness, make antenna its thickness thinning, can be effectively cost-saving.The NFC antenna of this embodiment is 16um ± 0.2um at the thickness of highest point, and coil place thickness is 8 ~ 10um, and the thickness of traditional NFC antenna is at more than 170um.In addition, the three-decker on antenna directly prints formation by tampon-printing process, simple for production, and the cost of manufacture of antenna is also reduced, and also contributes to from making angle the cost reducing antenna.
The novel NFC antenna of this embodiment can realize carrier be ultra-thin, profile radian significantly and be not limited on the intelligent communication device of size, antenna can realize at device housings inner surface or outer surface, and not affect subsequent technique.Novel NFC antenna has thin, the high yield of thickness, high production capacity, low cost and environment friendly and pollution-free advantage.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, make some substituting or obvious modification without departing from the concept of the premise utility, and performance or purposes identical, all should be considered as belonging to protection range of the present utility model.
Claims (6)
1. a NFC antenna, is characterized in that: comprise carrier, loop construction, ink layer and conductive metal layer; Bat printing is on the carrier successively for described loop construction, ink layer and conductive metal layer; Described loop construction comprises coil body and two feedback points, described coil body comprise around multi-turn coil, described around multi-turn coil in, the end extension and first of outermost one turn coil is presented and is a little communicated with, the end of the interior turn coil and second present a little between region be provided with described ink layer, multi-turn coil in the middle of the region overlay at described ink layer place, for the described middle multi-turn coil that insulate; Described conductive metal layer is arranged on described ink layer, and one end connects the end of the interior turn coil, and the other end connects described second feedback point.
2. NFC antenna according to claim 1, is characterized in that: described carrier is the housing of intelligent communication device.
3. NFC antenna according to claim 1, is characterized in that: the material of described carrier is polymethyl methacrylate or zirconia.
4. NFC antenna according to claim 1, is characterized in that: the material of described loop construction is silver slurry.
5. NFC antenna according to claim 1, is characterized in that: described ink layer is light-curable ink layer.
6. NFC antenna according to claim 1, is characterized in that: described conductive metal layer is conductive silver slurry layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520266355.5U CN204732526U (en) | 2015-04-28 | 2015-04-28 | A kind of NFC antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520266355.5U CN204732526U (en) | 2015-04-28 | 2015-04-28 | A kind of NFC antenna |
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| CN204732526U true CN204732526U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520266355.5U Active CN204732526U (en) | 2015-04-28 | 2015-04-28 | A kind of NFC antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130133A (en) * | 2016-08-19 | 2016-11-16 | 深圳市元征科技股份有限公司 | Wireless charging coil module and electronic product thereof |
| CN108012490A (en) * | 2018-01-03 | 2018-05-08 | 深圳顺络电子股份有限公司 | Ceramic rear cover and electronic equipment for electronic equipment |
| CN110466268A (en) * | 2018-05-09 | 2019-11-19 | 蓝思科技（长沙）有限公司 | Cover board and preparation method thereof and electronic equipment |
| CN111654805A (en) * | 2020-08-04 | 2020-09-11 | 汉得利（常州）电子股份有限公司 | Printed coil, manufacturing method thereof and earphone receiver |
| EP4195888A4 (en) * | 2021-10-28 | 2024-01-31 | Honor Device Co Ltd | Electronic device |
-
2015
- 2015-04-28 CN CN201520266355.5U patent/CN204732526U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130133A (en) * | 2016-08-19 | 2016-11-16 | 深圳市元征科技股份有限公司 | Wireless charging coil module and electronic product thereof |
| CN108012490A (en) * | 2018-01-03 | 2018-05-08 | 深圳顺络电子股份有限公司 | Ceramic rear cover and electronic equipment for electronic equipment |
| CN108012490B (en) * | 2018-01-03 | 2024-01-12 | 深圳顺络电子股份有限公司 | Ceramic rear cover for electronic equipment and electronic equipment |
| CN110466268A (en) * | 2018-05-09 | 2019-11-19 | 蓝思科技（长沙）有限公司 | Cover board and preparation method thereof and electronic equipment |
| CN110466268B (en) * | 2018-05-09 | 2021-11-23 | 蓝思科技（长沙）有限公司 | Cover plate, manufacturing method thereof and electronic equipment |
| CN111654805A (en) * | 2020-08-04 | 2020-09-11 | 汉得利（常州）电子股份有限公司 | Printed coil, manufacturing method thereof and earphone receiver |
| CN111654805B (en) * | 2020-08-04 | 2020-10-27 | 汉得利（常州）电子股份有限公司 | Printed coil, manufacturing method thereof and earphone receiver |
| EP4195888A4 (en) * | 2021-10-28 | 2024-01-31 | Honor Device Co Ltd | Electronic device |
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