Handheld terminal equipment with under-screen NFC (Near Field Communication)

Abstract

The utility model discloses handheld terminal equipment with under-screen NFC (Near Field Communication). The handheld terminal equipment comprises a screen, a circuit board, a middle frame assembly and an electric connection assembly, the middle frame assembly is arranged between the screen and the circuit board, the middle frame assembly comprises an NFC antenna, a fixing piece and a shell middle frame, the shell middle frame is provided with a containing hole, the NFC antenna is arranged in the containing hole, and the fixing piece is arranged in the space, except the NFC antenna, in the containing hole so that the NFC antenna can be fixedly connected to the shell middle frame; the electric connection assembly is arranged on the circuit board, and the two ends of the electric connection assembly are in electric contact with the NFC antenna and the circuit board respectively so that the NFC antenna can be electrically connected with the circuit board. According to the handheld terminal device with the under-screen NFC, the shell middle frame and the NFC antenna can be combined into a whole, so that the overall thickness of the handheld terminal device is effectively reduced, the structural strength of the handheld terminal device is improved by increasing the thickness of the middle frame assembly, and the product competitiveness is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a handheld terminal device technical field especially, it relates to a handheld terminal device with screen under NFC. BACKGROUND

[0002] Current PDA technology generally all screen under NFC scheme are adopted, and the existing true screen under NFC scheme has two ways.

[0003] As Figure 1 The first way is that the screen 2 adopts the form of iron frame screen, the back of LCM is broken, and the NFC antenna 31 is pasted into the opening 201 on the back of LCM, and then the FPC is placed in the metal frame of LCM, which needs to increase ferrite and other materials, and the overall thickness of the device is thick, and because the iron frame needs to be opened, the LCM is prone to deformation, and the mass production is difficult, resulting in high implementation cost of the scheme.

[0004] And as Figure 2 The second way is that the screen 2 adopts the form of plastic frame, the NFC antenna 31 is placed below the plastic frame, and the FPC is directly pasted above the plastic frame or above the front shell middle frame, but the strength of the plastic frame is low, so it needs to be made relatively thick to avoid deformation and other problems of LCM in the reliability test, so that the device is prone to screen breakage risk when falling.

[0005] The above two schemes cannot meet the needs of the existing handheld terminal device, and cannot effectively improve the competitiveness of the device product. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a handheld terminal device with screen under NFC, which can combine the middle frame of the shell and the NFC antenna, effectively reduce the overall thickness of the handheld terminal device, and improve the structural strength of the handheld terminal device by increasing the thickness of the middle frame assembly, effectively improving the product competitiveness.

[0007] In order to realize the above-mentioned purpose, the utility model provides a handheld terminal device with screen under NFC, which comprises:

[0008] A screen and a circuit board;

[0009] A middle frame assembly is arranged between the screen and the circuit board, the middle frame assembly comprises an NFC antenna, a fixing member and a shell middle frame, the shell middle frame is provided with a containing hole, the NFC antenna is arranged in the containing hole, and the fixing member is arranged in the space in the containing hole except the NFC antenna, so that the NFC antenna is fixedly connected to the shell middle frame.

[0010] An electric connection assembly is arranged on the circuit board, and two ends of the electric connection assembly are electrically connected with the NFC antenna and the circuit board respectively so as to electrically connect the NFC antenna and the circuit board.

[0011] Preferably, the NFC antenna is provided with a first feeding end and a second feeding end, the electric connection assembly comprises a first connecting piece and a second connecting piece, and when the middle frame assembly is combined with the circuit board, the first feeding end is crimped on the first connecting piece, and the second feeding end is crimped on the second connecting piece.

[0012] Preferably, the first connecting piece and the second connecting piece are conductive elastic sheet pieces, and each of the first connecting piece and the second connecting piece comprises a fixed part, an elastic part and a connecting part, the fixed part and the connecting part are arranged at two ends of the elastic part respectively, the fixed part is fixedly connected with the circuit board, and when the middle frame assembly is combined with the circuit board, the first feeding end is crimped on the connecting part of the first connecting piece and makes the elastic part of the first connecting piece elastically deform, and the second feeding end is crimped on the connecting part of the second connecting piece and makes the elastic part of the second connecting piece elastically deform.

[0013] Preferably, the fixed part is made of plastic material, and the fixed part is formed in the accommodating hole by in-mold injection.

[0014] Preferably, the NFC antenna is in a rectangular ring shape and is provided with an opening, the fixed part comprises a first stabilizing part and a second stabilizing part, the first stabilizing part is arranged on the inner side of the NFC antenna, and the second stabilizing part is arranged on the outer side of the NFC antenna.

[0015] Preferably, the NFC antenna is provided with two first feeding blocks protruding out of the opening.

[0016] Preferably, the NFC antenna is in a rectangular spiral shape, the fixed part comprises a third stabilizing part, a fourth stabilizing part and a fifth stabilizing part, the third stabilizing part is arranged on the inner side of the NFC antenna, the fourth stabilizing part is arranged at a hollow position in the middle of the NFC antenna, and the fifth stabilizing part is arranged on the outer side of the NFC antenna.

[0017] Preferably, the head end and the tail end of the NFC antenna are respectively provided with a second feeding block.

[0018] Preferably, the NFC antenna and / or the material of the shell middle frame is an alloy material.

[0019] In this application, the NFC antenna and the housing frame are integrated into a single frame assembly using a fastener. This frame assembly is positioned between the screen and the circuit board. The housing frame has a receiving hole, within which the NFC antenna is housed. The fastener is positioned within the space of the receiving hole excluding the NFC antenna, thus securing the NFC antenna to the housing frame. The NFC antenna is electrically connected to the circuit board via an electrical connection assembly. This integrated design of the housing frame and NFC antenna effectively reduces the overall thickness of the handheld terminal device. Simultaneously, it allows for increased structural strength by increasing the thickness of the frame assembly, thereby enhancing product competitiveness. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of an existing handheld terminal device that uses a metal frame screen.

[0021] Figure 2 Cross-sectional view of an existing handheld terminal device using a plastic frame.

[0022] Figure 3 This is an exploded structural diagram of a handheld terminal device with under-display NFC according to an embodiment of the present invention.

[0023] Figure 4 for Figure 3 A magnified structural diagram of A in the middle.

[0024] Figure 5 This is an exploded structural diagram of a handheld terminal device with under-display NFC, according to another embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the NFC antenna, fixing component, and housing frame of the first embodiment of the handheld terminal device with under-display NFC of this utility model.

[0026] Figure 7 This is a schematic diagram of the NFC antenna, fixing component, and housing frame of the second embodiment of the handheld terminal device with under-display NFC of this utility model. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1 to 7 This utility model discloses a handheld terminal device with under-display NFC, which includes:

[0029] Screen 1 and circuit board 2;

[0030] The middle frame assembly 3 is arranged between the screen 1 and the circuit board 2, and comprises an NFC antenna 31, a fixing member 32 and a housing middle frame 33. The housing middle frame 33 is provided with a receiving hole 331, the NFC antenna 31 is arranged in the receiving hole 331, and the fixing member 32 is arranged in the space in the receiving hole 331 except the NFC antenna 31, so that the NFC antenna 31 is fixedly connected to the housing middle frame 33.

[0031] The electric connection assembly 4 is arranged on the circuit board 2, and the two ends of the electric connection assembly 4 are electrically connected to the NFC antenna 31 and the circuit board 2 respectively, so that the NFC antenna 31 is electrically connected to the circuit board 2.

[0032] In the present application, the NFC antenna 31 and the housing middle frame 33 are combined into one through the fixing member 32 to form the middle frame assembly 3, the middle frame assembly 3 is arranged between the screen 1 and the circuit board 2, the housing middle frame 33 is provided with a receiving hole 331, the NFC antenna 31 is arranged in the receiving hole 331, and the fixing member 32 is arranged in the space in the receiving hole 331 except the NFC antenna 31, so that the NFC antenna 31 is fixedly connected to the housing middle frame 33, and the NFC antenna 31 is electrically connected to the circuit board 2 through the electric connection assembly 4. The combination of the housing middle frame 33 and the NFC antenna 31 can effectively reduce the thickness of the handheld terminal device, and is conducive to improving the structural strength of the handheld terminal device by increasing the thickness of the middle frame assembly 3, thereby effectively improving the product competitiveness.

[0033] Referring to Figures 1 to 7 The NFC antenna 31 is provided with a first feeding end 311 and a second feeding end 312, the electric connection assembly 4 comprises a first connecting member 41 and a second connecting member 42, and when the middle frame assembly 3 is combined with the circuit board 2, the first feeding end 311 is crimped to the first connecting member 41, and the second feeding end 312 is crimped to the second connecting member 42.

[0034] The arrangement of the electric connection assembly 4 is conducive to improving the connection flexibility between the NFC antenna 31 and the circuit board 2, reducing the assembly difficulty and improving the production efficiency.

[0035] Further, the first connecting member 41 and the second connecting member 42 are conductive elastic sheet members, and each of the first connecting member 41 and the second connecting member 42 comprises a fixed portion 401, an elastic portion 402 and a connecting portion 403. The fixed portion 401 and the connecting portion 403 are arranged at the two ends of the elastic portion 402 respectively, the fixed portion 401 is fixedly connected to the circuit board 2, and when the middle frame assembly 3 is combined with the circuit board 2, the first feeding end 311 is crimped to the connecting portion 403 of the first connecting member 41 and makes the elastic portion 402 of the first connecting member 41 elastically deform, and the second feeding end 312 is crimped to the connecting portion 403 of the second connecting member 42 and makes the elastic portion 402 of the second connecting member 42 elastically deform.

[0036] The arrangement of the electrical connection assembly 4 is conducive to improving the electrical connection stability between the NFC antenna 31 and the circuit board 2, and ensuring the stable contact between the spring piece and the feeding end of the NFC antenna 31.

[0037] Referring to Figures 1 to 6 In the first embodiment, the NFC antenna 31 is in a rectangular ring shape and is provided with an opening 313, and the fixing piece 32 includes a first stabilizing part 321 and a second stabilizing part 322, the first stabilizing part 321 is arranged on the inner side of the NFC antenna 31, and the second stabilizing part 322 is arranged on the outer side of the NFC antenna 31.

[0038] Further, the NFC antenna 31 is provided with two first feeding blocks 314 protruding out of the opening 313.

[0039] Specifically, in the first embodiment, the first connecting piece 41 and the second connecting piece 42 are arranged side by side and parallel to each other on the circuit board 2 corresponding to the two first feeding blocks 314, but are not limited thereto.

[0040] Referring to Figure 7 In the second embodiment, the NFC antenna 31 is in a rectangular spiral shape, and the fixing piece 32 includes a third stabilizing part 323, a fourth stabilizing part 324, and a fifth stabilizing part 325, the third stabilizing part 323 is arranged on the inner side of the NFC antenna 31, the fourth stabilizing part 324 is arranged at a hollow position in the middle of the NFC antenna 31, and the fifth stabilizing part 325 is arranged on the outer side of the NFC antenna 31.

[0041] Further, the head end and the tail end of the NFC antenna 31 are respectively provided with a second feeding block 315.

[0042] Specifically, in the second embodiment, the first connecting piece 41 and the second connecting piece 42 are arranged staggered on the circuit board 2 corresponding to the two second feeding blocks 315, but are not limited thereto.

[0043] In the first embodiment and the second embodiment, the structure metal piece built in the middle frame assembly 3 is used to realize the NFC antenna 31 function of the handheld terminal device, which can save the thickness space inside the handheld terminal device, and is conducive to saving the cost of an NFC-FPC antenna.

[0044] Referring to Figures 1 to 7 The material of the fixing piece 32 is plastic material, and the fixing piece 32 is formed in the accommodating hole 331 by in-mold injection molding, which realizes the effect of using part of the middle frame assembly 3 as the NFC antenna 31, thereby eliminating the operation of installing the NFC-FPC antenna and the welding cost, and effectively reducing the cost.

[0045] Specifically, in the first and second embodiments, the NFC antenna 31 and the shell middle frame 33 are combined by the way of in-mold injection, after the in-mold injection operation is completed, the excess plastic is removed by the way of CNC or punching, and then the NFC antenna 31 is built into the inside of the middle frame assembly 3.

[0046] Referring to Figures 1 to 7 , the material of the NFC antenna 31 and / or the shell middle frame 33 is an alloy material.

[0047] Specifically, in the present embodiment, the NFC antenna 31 and the shell middle frame 33 are both alloy materials, but not limited thereto, the original front shell alloy is split into the alloy material NFC antenna 31 and the alloy material shell middle frame 33, and the two are combined by in-mold injection, the alloy material shell middle frame 33 can be made thicker than the conventional design, to increase the strength of the shell middle frame 33, to take into account the function of part of the iron frame of the screen 1, to make up for the weakness of the screen 1, to reduce the product cost while solving the strength problem of the screen 1, to effectively increase the competitiveness of the equipment product.

[0048] Specifically, in the present embodiment, the screen 1 is an LCM, and not limited thereto, the alloy material shell middle frame 33 is used as a metal protective shell of the screen 1, so that the screen 1 can be designed with a plastic frame, which is conducive to further reducing the thickness of the handheld terminal device and improving product competitiveness.

[0049] The above disclosed is only the preferred embodiment of the utility model, of course, cannot be limited by this to limit the scope of the utility model right, therefore, the equivalent changes made according to the utility model patent range still belong to the scope covered by the utility model.

Claims

1. A handheld terminal device having under-screen NFC, characterized by, The application relates to a mobile phone, which comprises the following parts: a screen and a circuit board; a middle frame assembly arranged between the screen and the circuit board, the middle frame assembly comprising an NFC antenna, a fixing member and a housing middle frame, the housing middle frame being provided with a receiving hole, the NFC antenna being arranged in the receiving hole, and the fixing member being arranged in the space in the receiving hole except the NFC antenna so as to fixedly connect the NFC antenna to the housing middle frame; an electric connection assembly arranged on the circuit board, two ends of the electric connection assembly being electrically connected to the NFC antenna and the circuit board respectively so as to electrically connect the NFC antenna to the circuit board.

2. The handheld terminal device with under-screen NFC according to claim 1, characterized in that, The NFC antenna is provided with a first feeding end and a second feeding end, the electric connection assembly comprises a first connecting member and a second connecting member, and when the middle frame assembly and the circuit board are combined and installed, the first feeding end is crimped to the first connecting member, and the second feeding end is crimped to the second connecting member.

3. The handheld terminal device with under-screen NFC of claim 2, wherein, The first connecting member and the second connecting member are conductive elastic sheet members, and each of the first connecting member and the second connecting member comprises a fixed part, an elastic part and a connecting part, the fixed part and the connecting part being arranged at two ends of the elastic part respectively, the fixed part being fixedly connected to the circuit board, and when the middle frame assembly and the circuit board are combined and installed, the first feeding end is crimped to the connecting part of the first connecting member and makes the elastic part of the first connecting member elastically deform, and the second feeding end is crimped to the connecting part of the second connecting member and makes the elastic part of the second connecting member elastically deform.

4. The handheld terminal device with under-screen NFC of claim 1, wherein, The fixing member is made of plastic material and is formed in the receiving hole through in-mold injection molding. 5.The handheld terminal device with under-screen NFC of claim 1, wherein, The NFC antenna is in the shape of a rectangular ring and is provided with an opening, the fixing member comprises a first stabilizing part and a second stabilizing part, the first stabilizing part being arranged on the inner side of the NFC antenna, and the second stabilizing part being arranged on the outer side of the NFC antenna.

6. The handheld terminal device with under-screen NFC of claim 5, wherein, The NFC antenna is provided with two first feeding blocks protruding from the opening.

7. The handheld terminal device having under-screen NFC according to claim 1, characterized by, The NFC antenna is in the shape of a rectangular spiral, the fixing member comprises a third stabilizing part, a fourth stabilizing part and a fifth stabilizing part, the third stabilizing part being arranged on the inner side of the NFC antenna, the fourth stabilizing part being arranged at a hollow position in the middle of the NFC antenna, and the fifth stabilizing part being arranged on the outer side of the NFC antenna.

8. The handheld terminal device with under-screen NFC according to claim 7, characterized in that, The head end and the tail end of the NFC antenna are respectively provided with a second feeding block.

9. The handheld terminal device having under-screen NFC according to claim 1, characterized by, The NFC antenna and / or the housing middle frame are made of alloy material.

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