Terminal device with RFID function

Abstract

The utility model discloses terminal equipment with an RFID (Radio Frequency Identification Device) function, which comprises a mainboard and a metal piece, and is characterized in that the mainboard is provided with a code scanning module and an RFID module; the metal piece is arranged on the mainboard and covers the outer side of the code scanning module; an electric connection assembly is arranged between the main board and the metal piece, and the metal piece is electrically connected with the RFID module through the electric connection assembly to form an antenna structure. According to the terminal device with the RFID function, the effect that the metal piece of the code scanning module serves as the RFID antenna can be achieved, and the problem that the RFID antenna cannot be arranged due to the fact that the internal space of the terminal device is narrow and the cost is limited is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of terminal equipment technology, and in particular to a terminal equipment with RFID function. Background Technology

[0002] Existing PDA and POS products generally have RFID antennas to realize RFID functions. RFID antennas are divided into two types: custom antennas and standard antennas. Standard antennas include ceramic antennas, FPC antennas, and LDS antennas. However, accommodating RFID antennas in the internal space of a product is a significant challenge. Setting up conventional RFID antennas often leads to space constraints and cost limitations for PDA / POS products. Utility Model Content

[0003] The purpose of this invention is to provide a terminal device with RFID functionality, which can realize the effect of the metal part of the barcode scanning module as an RFID antenna, effectively solving the problem that the terminal device cannot be equipped with an RFID antenna due to limited internal space and cost constraints.

[0004] To achieve the above objectives, this utility model provides a terminal device with RFID functionality, comprising:

[0005] The motherboard is equipped with a barcode scanning module and an RFID module;

[0006] A metal component is disposed on the motherboard and covers the outside of the barcode scanning module; an electrical connection component is provided between the motherboard and the metal component, and the metal component is electrically connected to the RFID module through the electrical connection component to form an antenna structure.

[0007] Preferably, the electrical connection assembly includes at least two connectors, the positions of which correspond to the connection portions on the metal component.

[0008] Preferably, the connector is a spring clip, the connector is disposed on the motherboard corresponding to the connecting part, one connector is connected to the RFID module, and the other connector is grounded.

[0009] Preferably, the metal part has outwardly protruding portions on both sides, and each of the protruding portions has a connecting portion.

[0010] Preferably, the protrusions are symmetrically arranged on both sides of the metal part.

[0011] Preferably, the metal component is detachably connected to the motherboard.

[0012] Preferably, the metal part is connected to the motherboard by screws, and each of the protrusions is provided with a screw hole. Along the direction away from the center of the metal part, the screw hole and the connecting part are sequentially provided on the protrusion.

[0013] Preferably, the motherboard further includes a matching circuit between the RFID module and the electrical connection component. The matching circuit is used to match the impedance value of the antenna structure for antenna tuning.

[0014] Preferably, the matching circuit includes a capacitor and a resistor, the output terminal of the RFID module is connected to the first terminal of the resistor, the second terminal of the resistor is connected to the first terminal of the capacitor and the first terminal of the metal component, and the second terminal of the metal component and the second terminal of the resistor are grounded.

[0015] Preferably, the terminal device further includes a housing, on which a screen is disposed, a motherboard is disposed within the housing, and the barcode scanning module and the metal component are disposed on the side of the motherboard opposite to the screen.

[0016] This invention uses the metal component of the barcode scanning module as an RFID antenna. The metal component is set on the motherboard and covers the outside of the barcode scanning module on the motherboard. The metal component is electrically connected to the RFID module on the motherboard through an electrical connection component set between the motherboard and the metal component to form an antenna structure. Using the metal component of the barcode scanning module as an RFID antenna can effectively solve the problem that the internal space of the terminal device is narrow and the cost is limited, making it impossible to set an RFID antenna. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a terminal device with RFID function according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the metal parts and electrical connection components in the terminal device with RFID function according to an embodiment of this utility model.

[0019] Figure 3 This is a circuit diagram of the RFID module and metal parts in a terminal device with RFID function according to an embodiment of the present invention. Detailed Implementation

[0020] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please see Figures 1 to 3 This utility model discloses a terminal device with RFID function, which includes:

[0022] Mainboard 1 is equipped with barcode scanning module 2 and RFID module 3;

[0023] Metal component 20 is disposed on the main board 1 and covered on the outside of the barcode scanning module 2; an electrical connection component 4 is disposed between the main board 1 and the metal component 20, and the metal component 20 is electrically connected to the RFID module 3 through the electrical connection component 4 to form an antenna structure.

[0024] This invention uses the metal part 20 of the barcode scanning module 2 as an RFID antenna. The metal part 20 is disposed on the motherboard 1 and covers the outside of the barcode scanning module 2 on the motherboard 1. The metal part 20 is electrically connected to the RFID module 3 on the motherboard 1 through the electrical connection component 4 disposed between the motherboard 1 and the metal part 20 to form an antenna structure. Using the metal part 20 of the barcode scanning module 2 as an RFID antenna can effectively solve the problem that the internal space of the terminal device is narrow and the cost is limited, making it impossible to set up an RFID antenna.

[0025] See Figures 1 to 3 The electrical connection assembly 4 includes at least two connectors 41, the positions of which correspond to the connection portions 21 on the metal part 20, which facilitates the RFID module 3 to smoothly send and receive antenna signals through the connectors 41.

[0026] Specifically, in this embodiment, two connectors 41 are provided, one connector 41 serves as the feed point of the metal part 20, and the other connector 41 serves as the ground point of the metal part 20. However, this is not a limitation. In some embodiments, one connector 41 may be provided as the feed point of the metal part 20, and multiple connectors 41 may be provided as the ground points of the metal part 20.

[0027] Furthermore, the connector 41 is a spring clip, and the connector 41 is disposed on the main board 1 corresponding to the connecting part 21. One connector 41 is connected to the RFID module 3, and the other connector 41 is grounded.

[0028] Specifically, in this embodiment, one spring is connected to the metal part 20 and the RFID module 3 respectively, and another spring is connected to the metal part 20 and the ground terminal respectively. Furthermore, the directional radiation performance of the RFID antenna can be enhanced by adjusting the position of the spring connecting the metal part 20 to the RFID module 3 on the motherboard 1.

[0029] See Figures 1 to 3 The metal part 20 has protruding parts 22 on both sides, and each protruding part 22 has a connecting part 21.

[0030] Furthermore, the protrusions 22 are symmetrically arranged on both sides of the metal part 20.

[0031] Specifically, in this embodiment, a protrusion 22 is provided on both sides of the metal part 20, and the two protrusions 22 are symmetrically arranged, which is conducive to the stable connection between the metal part 20 and the connector 41, thereby realizing the stable reception of electrical signals sent by the RFID module 3 and the stable output of electrical signals to the RFID module 3.

[0032] Specifically, in this embodiment, the terminal device is a PDA product or a POS product, the barcode scanning module 2 is the barcode scanner of the PDA product or POS product, and the metal part 20 is the metal DECO of the barcode scanner. It is set on the motherboard 1 to protect the barcode scanning module 2, and is connected to the RFID module 3 on the motherboard 1 through the connector 41 to form an RFID antenna structure. However, it is not limited to this. The frequency and direction of the antenna can be adjusted by the board-end antenna debugging and matching, fine-tuning the metal DECO body, and adjusting the number and position of the DECO antenna feed points. This can effectively increase the directional radiation performance of the RFID antenna.

[0033] See Figures 1 to 3 The metal part 20 is detachably connected to the motherboard 1, which facilitates the flexible installation and removal of the metal part 20 and improves the connection flexibility of the metal part 20.

[0034] Furthermore, the metal part 20 is connected to the motherboard 1 by screws. Each protrusion 22 is provided with a screw hole 23. Along the direction away from the center of the metal part 20, the screw hole 23 and the connecting part 21 are sequentially provided on the protrusion 22, which is conducive to the stable contact and connection between the metal part 20 and the connecting part 41.

[0035] See Figures 1 to 3 The motherboard 1 also has a matching circuit 5 between the RFID module 3 and the electrical connection component 4. The matching circuit 5 is used to match the impedance value of the antenna structure to perform antenna tuning. By adjusting the matching circuit 5 between the metal part 20 and the RFID module 3, the directional radiation performance of the RFID antenna can be effectively enhanced.

[0036] Furthermore, the matching circuit 5 includes a capacitor 51 and a resistor 52. The output terminal of the RFID module 3 is connected to the first terminal of the resistor 52, the second terminal of the resistor 52 is connected to the first terminal of the capacitor 51 and the first terminal of the metal part 20, and the second terminal of the metal part 20 and the second terminal of the resistor 52 are grounded.

[0037] See Figures 1 to 3 The terminal device also includes a housing 6, on which a screen is mounted. The motherboard 1 is located inside the housing 6, and the barcode scanning module 2 and the metal part 20 are located on the side of the motherboard 1 away from the screen.

[0038] Specifically, in this embodiment, a metal DECO from the dock is used as the RFID antenna radiator, eliminating the need for an additional antenna body inside the terminal device. This helps save costs and internal space. Furthermore, software simulation and actual testing show that when a metal DECO is used as an RFID antenna, its radiation performance is good, and the corresponding performance data is better than that of the solution using standard parts as RFID antennas, but this is not a limitation.

[0039] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A terminal device with RFID functionality, characterized in that, include: The motherboard is equipped with a barcode scanning module and an RFID module; A metal component is disposed on the motherboard and covers the outside of the barcode scanning module; an electrical connection component is provided between the motherboard and the metal component, and the metal component is electrically connected to the RFID module through the electrical connection component to form an antenna structure.

2. The terminal device with RFID function according to claim 1, characterized in that, The electrical connection assembly includes at least two connectors, the positions of which correspond to the connection portions on the metal component.

3. The terminal device with RFID function according to claim 2, characterized in that, The connector is a spring clip, and the connector is disposed on the motherboard corresponding to the connecting part. One connector is connected to the RFID module, and the other connector is grounded.

4. The terminal device with RFID function according to claim 2, characterized in that, The metal part has outwardly protruding parts on both sides, and each of the protruding parts has a connecting part.

5. The terminal device with RFID function according to claim 4, characterized in that, The protrusions are symmetrically arranged on both sides of the metal part.

6. The terminal device with RFID function according to claim 1, characterized in that, The metal component is detachably connected to the motherboard.

7. The terminal device with RFID function according to claim 4, characterized in that, The metal component is connected to the motherboard by screws. Each of the protrusions is provided with a screw hole. Along the direction away from the center of the metal component, the screw hole and the connecting part are sequentially provided on the protrusion.

8. The terminal device with RFID function according to claim 1, characterized in that, The motherboard also includes a matching circuit between the RFID module and the electrical connection component. The matching circuit is used to match the impedance value of the antenna structure in order to perform antenna tuning.

9. The terminal device with RFID function according to claim 8, characterized in that, The matching circuit includes a capacitor and a resistor. The output terminal of the RFID module is connected to the first terminal of the resistor. The second terminal of the resistor is connected to the first terminal of the capacitor and the first terminal of the metal component. The second terminal of the metal component and the second terminal of the resistor are grounded.

10. The terminal device with RFID function according to claim 1, characterized in that, It also includes a housing, on which a screen is provided, a motherboard is disposed inside the housing, and the barcode scanning module and the metal component are disposed on the side of the motherboard opposite to the screen.

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