CN204179224U - A kind of NFC antenna module, NFC initiating equipment and NFC target device - Google Patents
A kind of NFC antenna module, NFC initiating equipment and NFC target device Download PDFInfo
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- CN204179224U CN204179224U CN201420596491.6U CN201420596491U CN204179224U CN 204179224 U CN204179224 U CN 204179224U CN 201420596491 U CN201420596491 U CN 201420596491U CN 204179224 U CN204179224 U CN 204179224U
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- nfc
- nfc antenna
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Abstract
The utility model is applicable to field of data communication, provides a kind of NFC antenna module, NFC initiating equipment and NFC target device, and described NFC antenna module comprises: at least one NFC antenna coil, chip and have the metal shell determining shape; Described metal shell, chip and described NFC antenna coils connected in series form loop; Wherein, described NFC antenna coil, chip are arranged at described metal shell inside.The utility model, by metal shell to be connected in parallel on the two ends of chip as the part of NFC antenna coil, to solve the magnetic Field Coupling problem of metal shell, the NFC read write line comprising described NFC antenna module can be communicated by penetrating metal shell; Further, because metal shell is as a part for NFC antenna coil, save the space of antenna, inductance value required when meeting chip internal 13.56MHz resonance can be produced, thus achieve NFC antenna coil is built in metal shell inside.
Description
Technical field
The utility model belongs to field of data communication, particularly relates to a kind of NFC antenna module, NFC initiating equipment and NFC target device.
Background technology
NFC technology is developed by non-contact radio-frequency identification (RFID) and the Technology Integration that interconnects, combining induction card reader, induction type card and point-to-point function on one chip, can carry out identifying and exchanges data with compatible equipment in short distance, operating frequency be 13.56MHz.
But the structure chart of the existing 13.56MHz Anneta module be applied in NFC technique and schematic diagram are as shown in Figure 1; Wherein, (a) in Fig. 1 is structure chart, and (b) is schematic diagram; In Fig. 1 (a) 11 is loop antenna inductor L, and its dead resistance is R1, and 12 is IC-card, and its resistance is R2, built-in capacitance is C1, and 13 is card stock, and its dead resistance is C2, and 14 is outside chip capacitor, and its electric capacity is C3.Visible whole Anneta module is made up of loop antenna inductor L and IC (built-in capacitance C1).Through the equivalent schematic diagram obtained as shown in (b) in Fig. 1.The capacitance C of existing NFC card reader and NFC label is certain, and frequency f is certain, according to formula
known inductance value is also certain.When the existing 13.56MHz Anneta module be applied in NFC technique being placed on metal shell inside, due to the magnetic Field Coupling of metal shell, NFC read write line cannot communicate by penetrating metal shell; In addition, the inner space due to metal shell is limited, causes the placement space of Anneta module to be also limited, cannot produce the inductance value made required for chip resonance to 13.56MHz.
Utility model content
The purpose of this utility model is to provide a kind of NFC antenna module, NFC initiating equipment and NFC target device, cannot reach inductance value needed for resonance to 13.56MHz and NFC initiating equipment cannot carry out the problem that communicates by penetrating metal shell to solve existing NFC antenna module in the inner limited space of metal shell.
The utility model is achieved in that a kind of NFC antenna module, and described NFC antenna module comprises:
At least one NFC antenna coil, chip and there is the metal shell determining shape;
Described metal shell, chip and described NFC antenna coils connected in series form loop;
Wherein, described NFC antenna coil, chip are arranged at described inside of metal outershell.
Further, described NFC antenna coil comprises two docking ports, and wherein a docking port connects the two ends of chip respectively; Another docking port is all connected with metal shell.
Further, the docking port in described two docking ports is arranged on the periphery of NFC antenna coil, and another docking port is arranged on the inner side of NFC antenna coil.
Further, described metal shell is provided with a groove, and two interfaces in the docking port be connected with metal shell are connected with the side of groove respectively.
The purpose of this utility model is also to provide a kind of NFC initiating equipment, and described NFC initiating equipment comprises NFC antenna module as above.
The purpose of this utility model is also to provide a kind of NFC target device, and described NFC target device comprises NFC antenna module as above.
The utility model embodiment is provided with a docking port by increasing on the basis of existing NFC antenna coil, for connecting with metal shell, metal shell to be connected in parallel on the two ends of chip as the part of NFC antenna coil, solve the magnetic Field Coupling problem of metal shell, the NFC read write line comprising described NFC antenna module can be communicated by penetrating metal shell; Further, because metal shell is as a part for NFC antenna coil, save the space of antenna, inductance value required when meeting chip internal 13.56MHz resonance can be produced, thus achieve NFC antenna coil is built in metal shell inside.
Accompanying drawing explanation
Fig. 1 is structure chart and the schematic diagram of the existing 13.56MHz Anneta module be applied in NFC technique;
Fig. 2 is the composition structure chart of the NFC antenna module that the utility model embodiment one provides;
Fig. 3 is the schematic diagram of the NFC antenna module that the utility model embodiment one provides;
Fig. 4 is the composition structure chart of the NFC initiating equipment that provides of the utility model embodiment two or NFC target device.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model embodiment provides a kind of NFC antenna module, a docking port is provided with by increasing on the basis of existing NFC antenna coil, for connecting with metal shell, metal shell to be connected in parallel on the two ends of chip as the part of NFC antenna coil, metal shell, chip and NFC coil is made to form a conductive loop, solve the magnetic Field Coupling problem of metal shell, the NFC read write line comprising described NFC antenna module can be communicated by penetrating metal shell; Further, because metal shell is as a part for NFC antenna coil, save the space of antenna, inductance value required when meeting chip internal 13.56MHz resonance can be produced, thus achieve NFC antenna coil is built in metal shell inside.The utility model embodiment still provides the NFC initiating equipment and NFC target device that comprise described NFC antenna module, is described in detail respectively below.
embodiment one
Fig. 2 shows the composition structure of the NFC antenna module that the utility model embodiment one provides, and for convenience of explanation, illustrate only the part relevant to the utility model.
As shown in Figure 2, described NFC antenna module comprises:
At least one NFC antenna coil 21, chip 22 and there is the metal shell 23 determining shape;
Described metal shell 23, chip 22 are connected with described NFC antenna coil 21 and are formed loop;
It is inner that described NFC antenna coil 21, chip 22 are arranged at described metal shell 23.
Preferably, described NFC antenna coil comprises two docking ports, and wherein a docking port connects the two ends of chip respectively; Another docking port is all connected with metal shell, the part of metal shell as antenna to be accessed in antenna loop.
Preferably, NFC antenna module as shown in Figure 3, the docking port in described two docking ports can be arranged on the periphery of NFC antenna coil, and another docking port is arranged on the inner side of NFC antenna coil.It should be noted that, Fig. 3 is only a schematic diagram of the NFC antenna module that the utility model provides, the position of two docking ports can be arranged according to actual needs, the setting position of two docking ports is not limited, as long as realize the docking port that increased by NFC antenna coil metal shell is linked into coil as the part of aerial coil herein.
Preferably, the NFC antenna module shown in Fig. 3 is a profile of NFC antenna module.This metal shell is a cuboid as can be seen from Figure 3, and described metal shell is provided with a groove, and described groove is irregularly shaped.Two interfaces in the docking port be connected with metal shell are connected with the side of groove respectively, are preferably and are welded by solder technology with two relative positions on groove side.It should be noted that, in the utility model embodiment, described groove can have any shape, such as cuboid, cylinder etc., metal shell the concrete shape of groove do not limited at this, as long as can be realized to be linked into NFC antenna coil as the part of aerial coil.
In order to reduce production cost, when the inductance value of described metal shell can make chip internal capacitance resonance frequency reach 13.56MHz, then NFC antenna coil can save.
Preferably, the shape of NFC antenna coil described in the utility model embodiment can be rectangle, circle, square, semicircle, heart or other irregular shapes etc.
In the utility model embodiment, a docking port is provided with by increasing on the basis of existing NFC antenna coil, for connecting with metal shell, metal shell to be connected in parallel on the two ends of chip as the part of NFC antenna coil, metal shell, chip and NFC coil is made to form a conductive loop, solve the magnetic Field Coupling problem of metal shell, the NFC read write line comprising described NFC antenna module can be communicated by penetrating metal shell; Further, because metal shell is as a part for NFC antenna coil, save the space of antenna, inductance value required when meeting chip internal 13.56MHz resonance can be produced, thus achieve NFC antenna coil is built in metal shell inside.
embodiment two
Fig. 4 shows the composition structure of NFC initiating equipment that the embodiment of the present invention two provides or NFC target device, for convenience of explanation, illustrate only the part relevant to the utility model.
As shown in Figure 4, described NFC initiating equipment or NFC target device comprise the NFC antenna module 41 as described in embodiment one.
Preferably, described NFC initiating equipment also comprises label information read module.
Wherein, it is inner that NFC antenna coil, chip and label information read module in described NFC antenna module are all arranged at described metal shell.
The operation principle of described NFC antenna module is identical with the operation principle of the NFC antenna module described in embodiment one, specifically refers to the description of embodiment one, repeats no more herein.It should be noted that, described NFC initiating equipment comprises NFC read write line, and NFC target device comprises NFC label, smart card etc.
In the utility model embodiment, a docking port is provided with by increasing on the basis of existing NFC antenna coil, for connecting with metal shell, metal shell to be connected in parallel on the two ends of chip as the part of NFC antenna coil, described metal shell, chip and NFC coil is made to form a conductive loop, solve the magnetic Field Coupling problem of metal shell, the NFC read write line comprising described NFC antenna module can be communicated by penetrating metal shell; Further, because metal shell is as a part for NFC antenna coil, save the space of antenna, inductance value required when meeting chip internal 13.56MHz resonance can be produced, thus achieve NFC antenna coil is built in metal shell inside.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. a NFC antenna module, is characterized in that, described NFC antenna module comprises:
At least one NFC antenna coil, chip and there is the metal shell determining shape;
Described metal shell, chip and described NFC antenna coils connected in series form loop;
Wherein, described NFC antenna coil, chip are arranged at described metal shell inside.
2. NFC antenna module as claimed in claim 1, it is characterized in that, described NFC antenna coil comprises two docking ports, and wherein a docking port connects the two ends of chip respectively; Another docking port is all connected with metal shell.
3. NFC antenna module as claimed in claim 2, it is characterized in that, the docking port in two docking ports is arranged on the periphery of NFC antenna coil, and another docking port is arranged on the inner side of NFC antenna coil.
4. NFC antenna module as claimed in claim 2, it is characterized in that, described metal shell is provided with a groove, and two interfaces in the docking port be connected with metal shell are connected with the side of groove respectively.
5. a NFC initiating equipment, is characterized in that, described NFC initiating equipment comprises the NFC antenna module as described in any one of Claims 1-4.
6. a NFC target device, is characterized in that, described NFC target device comprises the NFC antenna module as described in any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596491.6U CN204179224U (en) | 2014-10-15 | 2014-10-15 | A kind of NFC antenna module, NFC initiating equipment and NFC target device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596491.6U CN204179224U (en) | 2014-10-15 | 2014-10-15 | A kind of NFC antenna module, NFC initiating equipment and NFC target device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204179224U true CN204179224U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420596491.6U Expired - Fee Related CN204179224U (en) | 2014-10-15 | 2014-10-15 | A kind of NFC antenna module, NFC initiating equipment and NFC target device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204179224U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767033A (en) * | 2015-03-26 | 2015-07-08 | 上海安费诺永亿通讯电子有限公司 | Near field communication or wireless charging antenna device and electronic device |
| CN105161819A (en) * | 2015-06-23 | 2015-12-16 | 瑞声精密制造科技(常州)有限公司 | Rfid antenna structure |
| CN105958175A (en) * | 2016-04-20 | 2016-09-21 | 广东欧珀移动通信有限公司 | NFC antenna device and mobile terminal |
| CN106299605A (en) * | 2016-09-26 | 2017-01-04 | 宇龙计算机通信科技(深圳)有限公司 | Terminal unit |
| CN111052500A (en) * | 2017-12-06 | 2020-04-21 | 华为技术有限公司 | Antenna assembly and mobile terminal |
| WO2020098684A1 (en) * | 2018-11-16 | 2020-05-22 | 华为技术有限公司 | Nfc antenna and electronic device |
-
2014
- 2014-10-15 CN CN201420596491.6U patent/CN204179224U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767033A (en) * | 2015-03-26 | 2015-07-08 | 上海安费诺永亿通讯电子有限公司 | Near field communication or wireless charging antenna device and electronic device |
| CN104767033B (en) * | 2015-03-26 | 2016-06-22 | 上海安费诺永亿通讯电子有限公司 | The antenna assembly of near-field communication or wireless charging and electronic equipment |
| CN105161819A (en) * | 2015-06-23 | 2015-12-16 | 瑞声精密制造科技(常州)有限公司 | Rfid antenna structure |
| KR20170000352A (en) * | 2015-06-23 | 2017-01-02 | 에이에이씨 마이크로테크 (창저우) 씨오., 엘티디. | Radio Frequency Identification antenna structure |
| KR101889507B1 (en) * | 2015-06-23 | 2018-08-17 | 에이에이씨 마이크로테크 (창저우) 씨오., 엘티디. | Radio Frequency Identification antenna structure |
| CN105958175A (en) * | 2016-04-20 | 2016-09-21 | 广东欧珀移动通信有限公司 | NFC antenna device and mobile terminal |
| CN106299605A (en) * | 2016-09-26 | 2017-01-04 | 宇龙计算机通信科技(深圳)有限公司 | Terminal unit |
| CN111052500A (en) * | 2017-12-06 | 2020-04-21 | 华为技术有限公司 | Antenna assembly and mobile terminal |
| CN111052500B (en) * | 2017-12-06 | 2021-02-23 | 华为技术有限公司 | Antenna assembly and mobile terminal |
| WO2020098684A1 (en) * | 2018-11-16 | 2020-05-22 | 华为技术有限公司 | Nfc antenna and electronic device |
| CN111200186A (en) * | 2018-11-16 | 2020-05-26 | 华为技术有限公司 | NFC antenna and electronic device |
| US11949148B2 (en) | 2018-11-16 | 2024-04-02 | Huawei Technologies Co., Ltd. | NFC antenna and electronic apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20171015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |