TWM451676U - Mobile phone back lid structure having buried antenna and mobile phone device - Google Patents

Description

Mobile phone back cover structure with embedded antenna and mobile phone device

The present invention relates to a mobile phone back cover structure and a mobile phone device, and more particularly to a mobile phone back cover structure and a mobile phone device having a buried antenna.

Mobile phones or any type of mobile communication device have become a portable device for modern people. In the past, the main functions of mobile communication devices were limited to functions such as making calls, sending text messages, or wireless Internet access. However, with the advancement of technology and the convenience of mobile phones, the industry has begun to envision the integration of certain functions required for daily life into mobile phones, such as contactless smart cards. The so-called non-contact smart card is a wafer that is placed in the card by a close-range sensing method. At present, there are many applications for contactless smart cards in daily life, such as contactless credit cards with PayPass TM and VISA WAVE specifications, leisure cards for mass transit systems, iSSH cards with 7-11, and access control with ID identification. Cards and membership cards and more. The above-mentioned smart card can provide users with many very convenient services in daily life. Therefore, all the developers are actively researching and developing the smart card functions with various uses into the mobile phone that everyone will carry with them, so that the original is used for listening. Phone phones can also be used to swipe cards, as e-wallets, to take the mass transit system, or to identify themselves.

The above-mentioned mobile phone with near field communication technology is usually equipped with a near field communication antenna (NFC antenna). Most of the conventional near field communication antennas are directly mounted on the motherboard of the mobile phone, and occupy a large area on the motherboard, so that the near field communication antenna affects multiple electronic devices on the motherboard. The placement of components such as capacitors, inductors, resistors, diodes, and transistors. Therefore, this kind of mobile phone will encounter a lot in circuit design. Difficulties have become an important issue that the business person wants to solve.

The present invention provides a mobile phone back cover structure and a mobile phone device with a buried antenna, so as to solve the conventional "near field communication antennas are mostly installed directly on the motherboard of the mobile phone, and will occupy a large amount on the motherboard. The area is such that the near field communication antenna affects the absence of the placement of multiple electronic components on the motherboard.

A mobile phone back cover structure with a buried antenna provided by one embodiment of the present invention includes: a back cover case, a back cover case and a magnetic carrier. The back cover housing has an inner surface and an outer surface facing away from the inner surface. The antenna unit is embedded in the back cover housing, wherein the antenna unit has at least two exposed feed portions, and the antenna unit is adjacent to the inner surface of the back cover housing. The magnetic carrier is embedded in the back cover housing and covers the antenna unit, wherein the magnetic carrier has at least two bare openings for exposing at least two of the feeding portions, and the magnetic A carrier plate is adjacent to the inner surface of the back cover housing.

A mobile phone device with a buried antenna provided by another embodiment of the present invention includes: a mobile phone module and a mobile phone back cover structure. The back of the mobile phone module has at least two conductive terminals. The mobile phone back cover structure is assembled on the back surface of the mobile phone module, wherein the mobile phone back cover structure comprises a back cover housing, an antenna unit and a magnetic carrier. The back cover housing has an inner surface facing the back surface of the mobile phone module and an outer surface facing away from the inner surface. The antenna unit is embedded in the back cover housing, wherein the antenna unit has at least two feed portions exposed and electrically connected to at least two of the conductive terminals, and the antenna A wire unit is adjacent to the inner surface of the back cover housing. The magnetic carrier is embedded in the back cover housing and covers the antenna unit, wherein the magnetic carrier has at least two bare openings for exposing at least two of the feeding portions, and the magnetic A carrier plate is adjacent to the inner surface of the back cover housing.

Preferably, the antenna unit is a short-range wireless communication antenna.

Preferably, the antenna unit is surrounded by at least one conductive coil, and at least two of the feed portions are respectively disposed on opposite ends of at least one of the conductive coils.

Preferably, the antenna unit is completely covered between the magnetic carrier and the back cover housing, and the magnetic carrier is completely covered by the antenna unit and the back cover housing. Between so that the antenna unit and the magnetic carrier are completely hidden within the back cover housing.

Preferably, the magnetic carrier has an upper surface and a lower surface facing away from the upper surface, and the upper surface of the magnetic carrier is exposed from the inner surface of the back cover housing. The upper surface of the magnetic carrier is flush with the inner surface of the back cover housing, and the antenna unit is completely covered on the lower surface of the magnetic carrier and the back cover Between the bodies.

Preferably, the inner surface of the back cover housing has a recessed space, and the antenna unit and the magnetic carrier are disposed in the recessed space of the back cover housing, wherein the magnetic The carrier board has an upper surface and a lower surface facing away from the upper surface, the upper surface of the magnetic carrier board being exposed from the inner surface of the back cover housing, and the magnetic carrier board The upper surface is flush with the inner surface of the back cover housing.

The beneficial effects of the present invention may be that the mobile phone back cover structure and the mobile phone device provided by the present embodiment are transparent to the antenna unit. Designed to be embedded in the back cover housing by injection molding or hot pressing" and "the magnetic carrier is embedded in the back cover housing by injection molding or heat pressing and covering the antenna unit" Therefore, the mobile phone back cover structure and the mobile phone device of the present invention can provide short-distance or long-distance wireless communication functions, and the present invention can effectively solve the conventional "near-field communication antennas are mostly installed directly on the motherboard of the mobile phone. And it will occupy a large area on the motherboard, so that the near field communication antenna will affect the absence of the placement of multiple electronic components on the motherboard.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and explanation, and are not intended to limit the creation.

[First Embodiment]

1A to FIG. 1C, FIG. 1A is a schematic exploded perspective view, FIG. 1B is a cross-sectional view of the 1B-1B cut line of FIG. 1A, and FIG. 1C is a top view of the antenna unit. As shown in the above figure, the first embodiment of the present invention provides a mobile phone device Z having a buried antenna, comprising: a mobile phone module 1 and a mobile phone back cover structure 2, wherein the mobile phone back cover structure 2 includes a back cover The housing 20, an antenna unit 21 and a magnetic carrier 22 are provided.

First, as shown in FIG. 1A, the front surface 1000 of the mobile phone module 1 has a display screen (not shown). The back surface 1001 of the mobile phone module 1 has a rechargeable battery 10 and at least two conductive terminals 11, and the back cover of the mobile phone The structure 2 can be assembled on the back surface 1001 of the mobile phone module 1.

Furthermore, as shown in FIG. 1A to FIG. 1C, the back cover housing 20 has an inner surface 2000 facing the back surface 1001 of the mobile phone module 1 and an outer surface 2001 facing away from the inner surface 2000. For example, the back cover housing 20 can be any The plastic cover material has an insulating function, and the back cover case 20 can be used as a back cover of any electronic device, and is not limited to be used only as a back cover of a mobile phone.

In addition, as shown in FIG. 1A to FIG. 1C , the antenna unit 21 is embedded in the back cover housing 20 , wherein the antenna unit 21 has at least two feeding portions 2100 which are exposed and electrically connected to the two conductive terminals 11 respectively, and The antenna unit 21 is adjacent to the inner surface 2000 of the back cover housing 20. For example, the antenna unit 21 can be a short-range wireless communication antenna, that is, an NFC (Near Field Communication) antenna. In addition, the antenna unit 21 may be surrounded by at least one conductive coil 210 by a plurality of turns (as shown in FIG. 1C), and the two feed portions 2100 may be respectively disposed on opposite ends of the conductive coil 210. However, the antenna unit 21 used in the present invention is not limited to the example of the first embodiment described above.

In addition, as shown in FIG. 1A to FIG. 1C , the magnetic carrier 22 is embedded in the back cover housing 20 and covers the antenna unit 21 , wherein the magnetic carrier 22 has at least two bare bodies for respectively exposing the two feed portions 2100 . Opening 2202, and magnetic carrier 22 is adjacent inner surface 2000 of back cover housing 20. For example, the magnetic carrier 22 may be made of a ceramic material, and the antenna unit 21 and the magnetic carrier 22 may be fabricated together with the back cover housing 20 by means of injection molding. Furthermore, the magnetic carrier 22 has an upper surface 2200 and a lower surface 2201 facing away from the upper surface 2200. The upper surface 2200 of the magnetic carrier 22 is exposed from the inner surface 2000 of the back cover housing 20, on the magnetic carrier 22 The surface 2200 and the inner surface 2000 of the back cover housing 20 may be in a flush state, and the antenna unit 21 may be completely covered between the lower surface 2201 of the magnetic carrier 22 and the back cover housing 20. In addition, since the magnetic carrier 22 is disposed on the rechargeable battery 10 of the mobile phone module 1 Between the antenna unit 21 and the antenna unit 21, the antenna unit 21 can be protected from electromagnetic interference from the mobile phone module 1 (especially the rechargeable battery 10).

[Second embodiment]

Referring to FIG. 2 , a second embodiment of the present invention provides a mobile phone back cover structure 2 , which includes a back cover housing 20 , an antenna unit 21 , and a magnetic carrier 22 . It can be seen from the comparison between FIG. 2 and FIG. 1B that the second embodiment of the present invention is the biggest difference from the first embodiment in that, in the second embodiment, the antenna unit 21 can be completely covered on the magnetic carrier 22 and the back cover. Between the bodies 20, and the magnetic carrier 22 can be completely wrapped between the antenna unit 21 and the back cover housing 20, so that the antenna unit 21 and the magnetic carrier 22 can be completely hidden in the back cover housing 20, In addition to the antenna unit 21, there are still at least two feed portions 2100 that are exposed and electrically connected to the two conductive terminals 11 respectively (as shown in FIG. 1A).

[Third embodiment]

Referring to FIG. 3A and FIG. 3B , the third embodiment of the present invention provides a mobile phone back cover structure 2 , which includes a back cover housing 20 , an antenna unit 21 , and a magnetic carrier 22 . 3A and FIG. 1B, the third embodiment of the present invention differs greatly from the first embodiment in that, in the third embodiment, the inner surface 2000 of the back cover housing 20 has a recessed space 2002, and Both the antenna unit 21 and the magnetic carrier 22 can be disposed in the recessed space 2002 of the back cover housing 20 via hot pressing, wherein the upper surface 2200 of the magnetic carrier 22 is from the inner surface of the back cover housing 20. 2000 is exposed, and the upper surface 2200 of the magnetic carrier 22 and the inner surface 2000 of the back cover housing 20 may assume a flush state.

Therefore, according to different design requirements, the antenna unit 21 and the magnetic carrier 22 of the present invention can be subjected to injection molding. The manner is made together with the back cover housing 20, or both the antenna unit 21 and the magnetic carrier 22 can be disposed in the recessed space 2002 of the back cover housing 20 via a hot pressing.

[Possible effects of the examples]

In summary, the mobile phone back cover structure and the mobile phone device provided by the embodiments of the present invention can be embedded in the back cover case through the injection molding or hot pressing of the antenna unit. The magnetic carrier is embedded in the back cover housing and covered by the antenna unit by injection molding or hot pressing, so that the mobile phone back cover structure and the mobile phone device of the present invention can provide short distance or long distance. Wireless communication capabilities.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the patents of the present invention. Therefore, the equivalent technical changes that are made by using the present specification and the contents of the drawings are included in the scope of the present invention.

Z‧‧‧Mobile phone device

1‧‧‧Mobile phone module

1000‧‧‧ front

1001‧‧‧Back

10‧‧‧Rechargeable battery

11‧‧‧Electrical terminals

2‧‧‧Mobile phone back cover structure

20‧‧‧back cover shell

2000‧‧‧ inner surface

2001‧‧‧Outer surface

2002‧‧‧ recessed space

21‧‧‧Antenna unit

210‧‧‧Conducting coil

2100‧‧‧Feeding Department

22‧‧‧Magnetic carrier

2200‧‧‧ upper surface

2201‧‧‧ lower surface

2202‧‧‧Exposed opening

FIG. 1A is a perspective exploded view of a mobile phone device having a buried antenna according to a first embodiment of the present invention.

1B is a schematic cross-sectional view of the cut line of 1B-1B of FIG. 1A.

FIG. 1C is a top view of the antenna unit of the mobile phone back cover structure with the embedded antenna according to the first embodiment of the present invention.

2 is a partial cross-sectional view showing the structure of a mobile phone back cover having a buried antenna according to a second embodiment of the present invention.

FIG. 3A is a partially cross-sectional, exploded view showing the structure of a mobile phone back cover having a buried antenna according to a third embodiment of the present invention.

FIG. 3B is a partial cross-sectional view showing the structure of a mobile phone back cover having a buried antenna according to a third embodiment of the present invention.

Z‧‧‧Mobile phone device

1‧‧‧Mobile phone module

1000‧‧‧ front

1001‧‧‧Back

10‧‧‧Rechargeable battery

11‧‧‧Electrical terminals

2‧‧‧Mobile phone back cover structure

20‧‧‧back cover shell

2000‧‧‧ inner surface

2001‧‧‧Outer surface

21‧‧‧Antenna unit

2100‧‧‧Feeding Department

22‧‧‧Magnetic carrier

2200‧‧‧ upper surface

2202‧‧‧Exposed opening

Claims (12)

A mobile phone back cover structure having a buried antenna, comprising: a back cover housing having an inner surface and an outer surface facing away from the inner surface; an antenna unit embedded in the back cover Inside the housing, wherein the antenna unit has at least two exposed feed portions, and the antenna unit is adjacent to the inner surface of the back cover housing; and a magnetic carrier plate embedded in the back cover shell In vivo and covering the antenna unit, wherein the magnetic carrier has at least two bare openings for barely at least two of the feed portions, and the magnetic carrier is adjacent to the inner portion of the back cover housing surface. The mobile phone back cover structure with a buried antenna according to claim 1, wherein the antenna unit is a short-range wireless communication antenna. The mobile phone back cover structure with a buried antenna according to claim 1, wherein the antenna unit is surrounded by at least one conductive coil, and at least two of the feed portions are respectively disposed in at least one On opposite ends of the conductive coil. The mobile phone back cover structure with a buried antenna according to claim 1, wherein the antenna unit is completely covered between the magnetic carrier and the back cover housing, and the magnetic The carrier board is completely covered between the antenna unit and the back cover housing such that the antenna unit and the magnetic carrier are completely hidden within the back cover housing. The mobile phone back cover structure with a buried antenna according to claim 1, wherein the magnetic carrier has an upper surface and a lower surface facing away from the upper surface, the magnetic carrier The upper surface is exposed from the inner surface of the back cover housing, the upper surface of the magnetic carrier The inner surface of the back cover housing is flush with the antenna unit, and the antenna unit is completely covered between the lower surface of the magnetic carrier and the back cover housing. The mobile phone back cover structure with a buried antenna according to claim 1, wherein the inner surface of the back cover housing has a recessed space, and the antenna unit and the magnetic carrier are both disposed. In the recessed space of the back cover housing, wherein the magnetic carrier has an upper surface and a lower surface facing away from the upper surface, the upper surface of the magnetic carrier from the back The inner surface of the cover housing is exposed and the upper surface of the magnetic carrier is flush with the inner surface of the back cover housing. A mobile phone device having a buried antenna, comprising: a mobile phone module having at least two conductive terminals on a back surface thereof; and a mobile phone back cover structure assembled on the back surface of the mobile phone module, wherein The mobile phone back cover structure includes a back cover case, an antenna unit and a magnetic carrier board; wherein the back cover case has an inner surface facing the back surface of the mobile phone module and a back An outer surface of the inner surface; wherein the antenna unit is embedded in the back cover housing, wherein the antenna unit has at least two feed portions exposed and electrically connected to at least two of the conductive terminals, respectively, and The antenna unit is adjacent to the inner surface of the back cover housing; wherein the magnetic carrier is embedded in the back cover housing and covers the antenna unit, wherein the magnetic carrier has at least two And a bare opening for exposing at least two of the feed portions, respectively, and the magnetic carrier is adjacent to the inner surface of the back cover housing. Mobile phone with built-in antenna as described in claim 7 The antenna unit is a short-range wireless communication antenna. The mobile phone device with a buried antenna according to claim 7, wherein the antenna unit is surrounded by at least one conductive coil, and at least two of the feeding portions are respectively disposed on at least one of the conductive On opposite ends of the coil. The mobile phone device with a buried antenna according to claim 7, wherein the antenna unit is completely covered between the magnetic carrier and the back cover housing, and the magnetic carrier Completely wrapped between the antenna unit and the back cover housing such that the antenna unit and the magnetic carrier are completely hidden within the back cover housing. The mobile phone device with a buried antenna according to claim 7, wherein the magnetic carrier has an upper surface and a lower surface facing away from the upper surface, the upper surface of the magnetic carrier a surface is exposed from the inner surface of the back cover housing, the upper surface of the magnetic carrier is flush with the inner surface of the back cover housing, and the antenna unit is completely covered The lower surface of the magnetic carrier is between the back cover housing. The mobile phone device with a buried antenna according to claim 7, wherein the inner surface of the back cover housing has a recessed space, and the antenna unit and the magnetic carrier are disposed at the same. In the recessed space of the back cover housing, wherein the magnetic carrier has an upper surface and a lower surface facing away from the upper surface, the upper surface of the magnetic carrier from the back cover The inner surface of the body is exposed and the upper surface of the magnetic carrier is flush with the inner surface of the back cover housing.