CN202353618U - Back shell structure of mobile terminal - Google Patents
Back shell structure of mobile terminal Download PDFInfo
- Publication number
- CN202353618U CN202353618U CN2011203914834U CN201120391483U CN202353618U CN 202353618 U CN202353618 U CN 202353618U CN 2011203914834 U CN2011203914834 U CN 2011203914834U CN 201120391483 U CN201120391483 U CN 201120391483U CN 202353618 U CN202353618 U CN 202353618U
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- back shell
- mobile phone
- thickness
- antenna
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Abstract
The utility model discloses a back shell structure of a mobile terminal, which is used for containing a near field communication (NFC) antenna; the NFC antenna comprises a flexible printed circuit (FPC) antenna layer and a ferrite layer, wherein the area at the back shell of the mobile terminal used for containing the NFC antenna is substituted by a combined structure of a decorating piece layer and a metal layer; and the FPC antenna layer and the ferrite layer are between the decorating piece layer and the metal layer. The back shell antenna area adopts the combined structure of the metal layer with a thickness of 0.2-0.3 mm and the decorating piece layer with a thickness of 0.2-0.3 mm to replace a plastic back shell with a thickness of 0.8 mm, thus, the thickness of an overall mobile phone is reduced by 0.2-0.4 mm.
Description
Technical field
The utility model relates to a kind of portable terminal, and in particular, what relate to is a kind of back cover architecture advances of portable terminal.
Background technology
Closely unlimited mechanics of communication NFC (Near Field Communication) merges the new technology that develops and come on the basis of radio frequency identification (RFID) and interconnection technique, be a kind of short-range non-contact type wireless communication technology.Operate in the frequency range of 13.56MHz, can the connection between the apparatus for establishing in the 0-10cm scope.Along with the fast development of mechanics of communication, the NFC technology is applied in the mobile phone just more and more.
Most mobile phone NFC antenna all is integrated on the mobile phone back cover, because that the use of NFC frequency range is 13.56MHz, therefore requires the area of NFC antenna bigger.Shown in accompanying drawing 1, conventional mobile phone NFC antenna structure is a back cover 100+FPC antenna stack 101+ ferrite layer 102, and back cover 100 can not be done very thinly, and it is thick to be generally 0.8mm, and the FPC antenna stack is generally 0.15mm, and ferrite layer is 0.25mm, and gross thickness reaches 1.2mm.Back cover 100 thickness own make the mobile phone integral thickness thicker with the thickness that is fixed on the NFC antenna on the back cover.
Therefore, prior art still haves much room for improvement and develops.
The utility model content
The purpose of the utility model is to provide a kind of back shell structure of portable terminal, reduces the integral thickness of mobile phone.
The technical scheme of the utility model is following:
A kind of back shell structure of portable terminal; Be used to place the NFC antenna; Said NFC antenna comprises FPC antenna stack and ferrite layer; Wherein, the zone of said portable terminal back cover placement NFC antenna is substituted by the combining structure of a decoration layer and a metal level, and said FPC antenna stack and ferrite layer are all between said decoration layer and metal level.
The back shell structure of said portable terminal, wherein, said decoration layer is positioned at the back cover outside, and the zone of said placement NFC antenna is square.
The back shell structure of said portable terminal, wherein, the thickness of said decoration layer is 0.2-0.3mm.
The back shell structure of said portable terminal, wherein, said metal layer thickness is 0.2-0.3mm.
The back shell structure of said portable terminal, wherein, said portable terminal is a mobile phone.
The back shell structure of a kind of portable terminal that the utility model provided; Owing to the combining structure that at back cover antenna area employing thickness is the metal level of 0.2-0.3mm and the decoration layer that thickness is 0.2-0.3mm replaces thickness is the plastics back cover of 0.8mm, makes the thickness of whole mobile phone reduce 0.2-0.4mm.
Description of drawings
Fig. 1 is the back cover and the NFC antenna cross-sectional view of prior art.
Fig. 2 is the back cover and the NFC antenna cross-sectional view of the utility model.
Fig. 3 is a back cover outboard structure sketch map in the back shell structure of the utility model.
Fig. 4 is a back cover inside structure sketch map in the back shell structure of the utility model.
Fig. 5 is the resonance frequency of NFC antenna behind employing the utility model.
Fig. 6 adopts behind the utility model under the mobile phone open state, and mobile phone is the performance map of Type A mode card (Shmoo).
Fig. 7 adopts behind the utility model under the mobile phone open state, and mobile phone is the performance map of Type B mode card (Shmoo).
Fig. 8 adopts behind the utility model under the mobile phone open state, and mobile phone is the performance map of reading mode (Reading range).
Embodiment
Below will combine accompanying drawing, the embodiment of the utility model is specified, described specific embodiment in order to explain the utility model, is not the embodiment that is used to limit the utility model only.
The embodiment of the back shell structure of the utility model portable terminal such as Fig. 3, shown in Figure 4; The plastics back cover of the antenna area of mobile phone back cover 205 is removed; The combination of adopting metal level 203 to add decoration layer 200 replaces the plastics back cover of said antenna area, thereby on mobile phone back cover 205, forms the zone of a decoration layer.Said decoration layer 200 is positioned at the outside of said mobile phone back cover 205, just is positioned at the side away from battery 204, can be arranged in the square space, can conveniently generate and assemble like this; Said metal level 203 is positioned at the inboard of said mobile phone back cover 205, just is positioned at the side near battery 204.As shown in Figure 2, said FPC antenna stack 201 and ferrite layer 202 are all between said metal level 203 and decoration layer 200.
Said decoration layer 200 thickness are 0.2-0.3mm, and said metal level 203 thickness are 0.2-0.3mm, and thickness adds up to 0.4-0.6mm, has reduced 0.2-0.4mm than thickness of the shell 0.8mm behind the prior art mobile phone, thereby whole mobile phone thickness has reduced 0.2-0.4mm.
The resonance frequency of NFC antenna is as shown in Figure 5 behind employing the utility model, and when the return loss of NFC antenna was hanged down, the resonance frequency of NFC antenna was positioned near the 13.56MHz, obviously meets the requirement of employed NFC chip to the NFC antenna performance.
Performance to the mode card (Shmoo) behind employing the utility model is tested; Under the mobile phone power-on state; Mobile phone is that the performance of Type A mode card (Shmoo) is as shown in Figure 6, the response condition of mobile phone when the magnetic field intensity of this figure expression card reader and the index of modulation change.The circle of band shade is represented not response of mobile phone among the figure; Do not represent that with the circle of shade mobile phone has response among the figure.This can find out, under the mobile phone power-on state, during more than or equal to 1.0A/m, mobile phone has response in the magnetic field intensity of card reader.
Further, under the mobile phone power-on state, mobile phone is that the performance of Type B mode card (Shmoo) is as shown in Figure 7, the response condition of mobile phone when the magnetic field intensity of this figure expression card reader and the index of modulation change.The circle of band shade is represented not response of mobile phone among the figure; Do not represent that with the circle of shade mobile phone has response among the figure.This shows that under the mobile phone power-on state, during more than or equal to 1.5A/m, mobile phone has response in the magnetic field intensity of card reader.
Performance to the reading mode (Reading range) behind employing the utility model is tested; Under the mobile phone power-on state; The performance of reading mode (Reading range) is as shown in Figure 8, can find out that by Fig. 8 reading mode (Reading range) reaches performance requirement.
Therefore the test result of mode card (Shmoo) and reading mode (Reading range) all reaches performance requirement.
Should be understood that; The preferred embodiment that the above is merely the utility model is not sufficient to limit the technical scheme of the utility model, concerning those of ordinary skills; Within the spirit and principle of the utility model; Can increase and decrease according to above-mentioned explanation, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection range of the utility model accompanying claims.
Claims (5)
1. the back shell structure of a portable terminal; Be used to place the NFC antenna; Said NFC antenna comprises FPC antenna stack and ferrite layer; It is characterized in that the zone of said portable terminal back cover placement NFC antenna is substituted by the combining structure of a decoration layer and a metal level, said FPC antenna stack and ferrite layer are all between said decoration layer and metal level.
2. according to the back shell structure of the said portable terminal of claim 1, it is characterized in that said decoration layer is positioned at the back cover outside, and the zone of said placement NFC antenna is square.
3. according to the back shell structure of the said portable terminal of claim 1, it is characterized in that the thickness of said decoration layer is 0.2-0.3mm.
4. according to the back shell structure of the said portable terminal of claim 1, it is characterized in that said metal layer thickness is 0.2-0.3mm.
5. according to the back shell structure of the said portable terminal of the arbitrary claim of claim 1-4, it is characterized in that said portable terminal is a mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203914834U CN202353618U (en) | 2011-10-14 | 2011-10-14 | Back shell structure of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203914834U CN202353618U (en) | 2011-10-14 | 2011-10-14 | Back shell structure of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353618U true CN202353618U (en) | 2012-07-25 |
Family
ID=46542576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203914834U Expired - Fee Related CN202353618U (en) | 2011-10-14 | 2011-10-14 | Back shell structure of mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353618U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685617A (en) * | 2012-09-11 | 2014-03-26 | 钒创科技股份有限公司 | Cell phone back cover assembly with near-field communication chip |
| CN104953239A (en) * | 2014-03-25 | 2015-09-30 | 维沃移动通信有限公司 | NFC antenna applied to mobile terminal |
| US9954583B2 (en) | 2014-03-28 | 2018-04-24 | Byd Company Limited | Mobile terminal and near field communication antenna |
-
2011
- 2011-10-14 CN CN2011203914834U patent/CN202353618U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685617A (en) * | 2012-09-11 | 2014-03-26 | 钒创科技股份有限公司 | Cell phone back cover assembly with near-field communication chip |
| CN104953239A (en) * | 2014-03-25 | 2015-09-30 | 维沃移动通信有限公司 | NFC antenna applied to mobile terminal |
| WO2015143931A1 (en) * | 2014-03-25 | 2015-10-01 | 维沃移动通信有限公司 | Nfc antenna applied to mobile terminal |
| CN104953239B (en) * | 2014-03-25 | 2017-11-28 | 维沃移动通信有限公司 | A kind of NFC antenna applied to mobile terminal |
| US9954583B2 (en) | 2014-03-28 | 2018-04-24 | Byd Company Limited | Mobile terminal and near field communication antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20131014 |