WO2012068789A1 - Electronic device provided with radio frequency identification antenna - Google Patents

Abstract

An electronic device provided with a radio frequency identification antenna is disclosed in the present utility model. The electronic device is used for reasonably setting the routing way of the radio frequency identification antenna according to the structure of the device so as to ensure the performance of the radio frequency identification system in the electronic device, and specifically includes that: the radio frequency identification antenna is set on a non-detachable intermediate structural component in the electronic device, and the routing of the radio frequency identification antenna coils on the intermediate structural component is irregular. In this way, the routing way is not limited to traditional ways, the limited design space is high-efficiently utilized, the design flexibility of the radio frequency identification antenna is improved, and based on the stability of the intermediate structural component, the working performance of the radio frequency identification antenna is ensured.

Description

 Electronic device provided with radio frequency identification antenna

 The utility model relates to the field of communication, in particular to an electronic device provided with a radio frequency identification antenna. Background technique

 With the development of technology, the application of RFID (Radio Frequency Identification) technology is becoming more and more widely used. RFID technology is a non-contact information transmission through the spatial coupling (alternating magnetic field or electromagnetic field) using radio frequency signals. The technology that the information achieves the purpose of identification, for example, the mobile phone can use the user identification module (eg, SIM card) to consume on the POS machine by using RFID technology.

 The RFID system installed inside the electronic device generally consists of the following three parts: A reader/writer for reading and writing data to the subscriber identity module.

 A radio frequency card is a form of information carrier that transmits data wirelessly, and has unique advantages such as data processing and security authentication.

 An RFID antenna (Antenna) that generates magnetic flux and transmits information between the reader and the RF card through magnetic flux.

 For RFID systems integrated on electronic devices, RFID antennas must be placed on the electronics. In the conventional mode, in order to increase the magnetic flux passing through the antenna and thereby improve the data transmission quality, the wiring area of the RFID antenna is designed to be as large as possible. For example, as shown in Figure 1, taking a mobile phone as an example, the RFID antenna is usually placed on the back cover of the mobile phone. The wiring area of each coil is maximized. When the back cover of the mobile phone is closed, the RFID antenna is touched. The point is connected to other functional modules of the RFID system to complete the data transfer.

However, in the prior art, for portable electronic devices, it is often due to structure and shape. The reason for the limited design area of the RFID antenna is that the traditional RFID antenna routing method is no longer applicable; and the RFID antenna is often placed on the detachable back cover of the electronic device, and the repeated removal of the back cover will affect The contact performance of the contacts affects the overall performance of the RFID system.

 In view of this, it is necessary to redesign an RFID antenna applied to an electronic device to overcome the above drawbacks. Utility model content

 The utility model provides an electronic device provided with a radio frequency identification antenna, which is used for reasonably setting the wiring mode of the radio frequency identification antenna in combination with the structure of the electronic device to ensure the performance of the radio frequency identification system in the electronic device.

 In order to achieve the above object, the technical solution of the present invention is implemented as follows:

 An electronic device provided with a radio frequency identification antenna, the radio frequency identification antenna being disposed on a non-removable intermediate structural member of the electronic device, and the coil of the radio frequency identification antenna is irregularly routed on the intermediate structural member .

 The coil of the radio frequency identification antenna is irregularly routed according to the outer contour of the functional module disposed on the intermediate structural member.

 The intermediate structural member is provided with a hollowed out component, which is a hollow design designed for industrial design or has a design function; the coil of the radio frequency identification antenna is disposed along the hollowed out component of the intermediate structural component Irregular outlines,

 The outermost coil of the RFID antenna is routed along the outer contour of the outer edge of the intermediate structure.

 The RFID antenna is coupled to other functional modules in the RFID system via a connector disposed on the intermediate structure.

 The antenna is made of a flexible circuit board FPC material.

The antenna is cut, hollowed out or according to the specific shape of the intermediate structural member during the routing process. Bending treatment and adhesion to the intermediate structural members.

 The antenna is coupled to the handset circuit board via a connector disposed on the intermediate structure. The intermediate structure is located above or below the battery compartment in the electronic device.

 The electronic device is a mobile phone, a personal handheld computer, a PC or a notebook computer.

 In the embodiment of the present invention, the radio frequency identification antenna in the electronic device is redesigned, and the radio frequency identification antenna is disposed on the non-removable intermediate structural member in the electronic device, and the coil of the radio frequency identification antenna is on the intermediate structural member. Irregular routing. In this way, the traditional way of routing is not limited, the limited design space is utilized efficiently, the design flexibility of the RFID antenna is improved, and the performance of the RFID antenna is ensured based on the stability of the intermediate structure. DRAWINGS

 1 is a schematic view showing a wiring pattern and a setting part of a radio frequency identification antenna according to the prior art of the present invention;

 2 is a schematic view showing a location of a radio frequency identification antenna according to an embodiment of the present invention;

 3 is a schematic diagram of a radio frequency identification antenna routing manner in an embodiment of the present invention;

 4 is a schematic view showing the position of a contact point of a radio frequency identification antenna in an embodiment of the present invention. detailed description

 The implementation of the technical solution will be further described in detail below with reference to the accompanying drawings:

 In an actual application, the electronic device may be a mobile phone, a PDA, a PC, a notebook computer, or the like. Referring to FIG. 2 and FIG. 3, in this embodiment, using a mobile phone as an example, preferably, the RFID antenna is disposed on the mobile phone. The non-removable intermediate structure member and the coil of the radio frequency identification antenna are irregularly routed on the intermediate structural member; wherein the placement portion of the radio frequency identification antenna on the intermediate structural member can be flexibly designed according to the actual application environment, for example, can be placed Above the battery compartment, it can also be placed under the battery compartment.

The so-called intermediate structural parts, that is, the non-removable in the mobile phone, as the main structure of the mobile phone Part. The RFID antenna is disposed on the intermediate structural member to improve its stability, avoiding the adverse effects of the repeated removal of the back cover of the mobile phone on the performance of the RFID antenna, and avoiding the metal performance of the back cover of the mobile phone. Identify the adverse effects of the antenna's performance. The irregularity of the coil of the radio frequency identification antenna on the intermediate structural member is to realize the design of the radio frequency identification antenna in a limited design space, and the design flexibility of the radio frequency identification antenna is improved.

 Further, when the coil of the radio frequency identification antenna is irregularly routed on the intermediate structural member, if the intermediate structural member is provided with other functional modules, the coil of the radio frequency identification antenna may follow the outer contour of the functional module disposed on the intermediate structural member. Irregular routing, for example, as shown in Figure 3, the intermediate structural member is provided with two hollowed out parts, which can only be hollowed out for industrial design, that is, only design features It can also be other embedded devices, such as card slots, cameras, and so on. The coil of the radio frequency identification antenna is irregularly routed along the outer contour of the hollowed out part provided on the intermediate structural member, so that the winding manner of the coil is not limited to "requiring each coil to occupy a large area", which can be the largest The use of a limited design space to house the RFID antenna increases the flexibility of the design without degrading the performance of the RFID antenna.

 Of course, referring to FIG. 3, in order to further ensure the data transmission performance of the RFID antenna, it is preferable to route the outermost coil of the RFID antenna along the outer contour of the outer edge of the intermediate structure member, thereby maximally satisfying the antenna magnetic flux. Requirements.

On the other hand, preferably, the RFID antenna can use FPC (flexible circuit board) material, and during the routing process, according to the specific shape of the intermediate structural member, appropriate cutting, hollowing, bending, and then the middle The structural parts are stuck together. Further, referring to FIG. 4, the RFID antenna is connected to the mobile phone circuit board through a connector disposed on the intermediate structural member, so that it can be combined with other functional modules in the RFID system (eg, a reader/writer, a radio frequency card, etc.) Etc.) To achieve a good connection, since the connector is placed on the intermediate structural member instead of the back cover of the mobile phone, the probability of disassembly is greatly reduced, further ensuring the good performance of the mobile phone identification antenna. In the embodiment of the present invention, the radio frequency identification antenna in the electronic device is redesigned, so that the radio frequency identification antenna is disposed on the non-removable intermediate structural member in the electronic device, and the coil of the radio frequency identification antenna is irregularly routed on the intermediate structural member. In this way, the traditional way of routing is not limited, the limited design space is utilized efficiently, the design flexibility of the RFID antenna is improved, and the performance of the RFID antenna is ensured based on the stability of the intermediate structure.

 The above description is only an example of the implementation of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications or equivalent substitutions, improvements, etc. within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim  What is claimed is: 1. An electronic device provided with a radio frequency identification antenna, wherein the radio frequency identification antenna is disposed on a non-detachable intermediate structural member of the electronic device, and a coil of the radio frequency identification antenna is in the intermediate structure Irregular traces on the pieces.  2. The electronic device according to claim 1, wherein the coil of the radio frequency identification antenna is irregularly routed according to an outer contour of a function module disposed on the intermediate structural member.  The electronic device according to claim 2, wherein the intermediate structural member is provided with a hollowed out component, which is a hollowed out design required for industrial design or having a design function; The coil of the RFID antenna is irregularly routed along the outer contour of the hollowed out component provided on the intermediate structural member.  4. The electronic device according to claim 1, wherein an outermost coil of the radio frequency identification antenna is routed along a maximum contour of an outer edge of the intermediate structural member.  5. The electronic device according to claim 1, wherein the radio frequency identification antenna is connected to other functional modules in the radio frequency identification system through a connector disposed on the intermediate structural member.  The electronic device according to any one of claims 1 to 5, wherein the antenna is made of a flexible circuit board FPC material.  7. The electronic device according to claim 6, wherein the antenna has a trimming, hollowing or bending process according to a specific shape of the intermediate structural member during the routing, and is adhered to the intermediate structural member.  8. The electronic device according to claim 6, wherein the antenna is connected to the mobile phone circuit board through a connector provided on the intermediate structural member.  9. The electronic device of claim 6, wherein the intermediate structure is located above or below the battery compartment in the electronic device. 10. The electronic device according to claim 6, wherein the electronic device is a hand Machine, personal handheld, PC or laptop.