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

Abstract

The invention 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, meanwhile, 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 present invention relates to the technical field of handheld terminal devices, and in particular to a handheld terminal device with under-screen NFC. Background Art

[0002] Current PDA technology generally adopts the under-screen NFC solution, and there are two existing real under-screen NFC solutions.

[0003] like Figure 1 As shown, the first method is that the screen 2 adopts the form of an iron frame screen, the back of the LCM is broken, and the NFC antenna 31 is attached to the opening 201 on the back of the LCM, and then the FPC is placed inside the metal frame of the LCM. This setting method requires the addition of materials such as ferrite, which will cause the overall thickness of the device to be thicker. In addition, since the iron frame needs to be opened, the LCM is prone to deformation, and mass production is difficult, resulting in high implementation costs of this solution; And as Figure 2 As shown, the second method is that the screen 2 adopts a plastic frame, the NFC antenna 31 is placed under the plastic frame, and the FPC is directly attached to the plastic frame or above the middle frame of the front shell, but the strength of the plastic frame is relatively low, so it needs to be made thicker to avoid deformation of the LCM during reliability testing, which may lead to the risk of screen breakage when the device falls.

[0004] Both of the above solutions cannot meet the needs of existing handheld terminal devices and cannot effectively improve the competitiveness of device products. Summary of the invention

[0005] The purpose of the present invention is to provide a handheld terminal device with under-screen NFC, which can combine the shell middle frame and the NFC antenna into one, so that the overall thickness of the handheld terminal device is effectively reduced. At the same time, it is beneficial to improve the structural strength of the handheld terminal device by increasing the thickness of the middle frame assembly, thereby effectively improving the product competitiveness.

[0006] In order to achieve the above object, the present invention provides a handheld terminal device with under-screen NFC, which includes: screens and circuit boards; A middle frame assembly, the middle frame assembly is arranged between the screen and the circuit board, the middle frame assembly comprises an NFC antenna, a fixing part and a shell middle frame, the shell middle frame is provided with a receiving hole, the NFC antenna is arranged in the receiving hole, and the fixing part is arranged in the space in the receiving hole except the NFC antenna, so that the NFC antenna is fixedly connected to the shell middle frame; An electrical connection component is disposed on the circuit board, and two ends of the electrical connection component are respectively electrically contacted with the NFC antenna and the circuit board to electrically connect the NFC antenna to the circuit board.

[0007] Preferably, the NFC antenna is provided with a first feeding end and a second feeding end, the electrical connection assembly includes a first connecting piece and a second connecting piece, and when the middle frame assembly is assembled and installed with the circuit board, the first feeding end is crimped to the first connecting piece, and the second feeding end is crimped to the second connecting piece.

[0008] Preferably, the first connecting member and the second connecting member are conductive spring pieces, and the first connecting member and the second connecting member both include a fixed portion, an elastic portion and a connecting portion, and the fixed portion and the connecting portion are respectively arranged at two ends of the elastic portion, and the fixed portion is fixedly connected to the circuit board. When the middle frame assembly is assembled and installed with the circuit board, the first feeding end is crimped to the connecting portion of the first connecting member and the elastic portion of the first connecting member is elastically deformed, and the second feeding end is crimped to the connecting portion of the second connecting member and the elastic portion of the second connecting member is elastically deformed.

[0009] Preferably, the fixing member is made of plastic material, and the fixing member is formed in the accommodating hole by in-mold injection molding.

[0010] Preferably, the NFC antenna is in a rectangular ring shape and is provided with an opening, and the fixing member includes a first stabilizing portion and a second stabilizing portion, the first stabilizing portion is arranged on the inner side of the NFC antenna, and the second stabilizing portion is arranged on the outer side of the NFC antenna.

[0011] Preferably, the NFC antenna is provided with two first feeding blocks extending out of the opening corresponding to the opening.

[0012] Preferably, the NFC antenna is in a rectangular spiral shape, and the fixing member includes a third stabilizing portion, a fourth stabilizing portion and a fifth stabilizing portion, the third stabilizing portion is arranged on the inner side of the NFC antenna, the fourth stabilizing portion is arranged at a hollow position in the middle of the NFC antenna, and the fifth stabilizing portion is arranged on the outer side of the NFC antenna.

[0013] Preferably, a second feeding block is respectively provided at the head end and the tail end of the NFC antenna.

[0014] Preferably, the NFC antenna and / or the housing middle frame are made of alloy material.

[0015] In the present application, the NFC antenna and the middle frame of the shell are combined into one by a fixing part to form a middle frame component. The middle frame component is arranged between the screen and the circuit board. The middle frame of the shell is provided with a receiving hole. The NFC antenna is arranged in the receiving hole. The fixing part is arranged in the space in the receiving hole except the NFC antenna, so that the NFC antenna is fixedly connected to the middle frame of the shell. The NFC antenna is electrically connected to the circuit board through the electrical connection component. The setting of combining the middle frame of the shell and the NFC antenna into one can effectively reduce the overall thickness of the handheld terminal device, and at the same time, it is conducive to improving the structural strength of the handheld terminal device by increasing the thickness of the middle frame component, effectively improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The cross-sectional view is a conventional handheld terminal device using an iron frame screen.

[0017] Figure 2 A cross-sectional view of an existing handheld terminal device using a plastic frame Figure 3 This is a diagram showing the exploded structure of a handheld terminal device with under-screen NFC according to an embodiment of the present invention.

[0018] Figure 4 for Figure 3 A is an enlarged structural diagram.

[0019] Figure 5 This is a diagram of the exploded structure of a handheld terminal device with under-screen NFC from another perspective according to an embodiment of the present invention.

[0020] Figure 6 This is a schematic structural diagram of the NFC antenna, fixing component and housing middle frame of the first embodiment of the handheld terminal device with under-screen NFC of the present invention.

[0021] Figure 7 This is a schematic structural diagram of the NFC antenna, fixing component and housing middle frame of the second embodiment of the handheld terminal device with under-screen NFC of the present invention. DETAILED DESCRIPTION

[0022] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0023] See also Figures 1 to 7 The present invention discloses a handheld terminal device with under-screen NFC, which includes: Screen 1 and circuit board 2; The middle frame assembly 3 is arranged between the screen 1 and the circuit board 2. The middle frame assembly 3 includes an NFC antenna 31, a fixing member 32 and a shell middle frame 33. The shell middle frame 33 is provided with a receiving hole 331. The NFC antenna 31 is arranged in the receiving hole 331. 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 shell middle frame 33. The electrical connection component 4 is disposed on the circuit board 2 , and two ends of the electrical connection component 4 are respectively electrically connected to the NFC antenna 31 and the circuit board 2 to electrically connect the NFC antenna 31 to the circuit board 2 .

[0024] In the present application, the NFC antenna 31 and the shell middle frame 33 are combined into one by 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 shell middle frame 33 is provided with a receiving hole 331. The NFC antenna 31 is arranged in the receiving hole 331. The fixing member 32 is arranged in the space other than the NFC antenna 31 in the receiving hole 331, so that the NFC antenna 31 is fixedly connected to the shell middle frame 33. The NFC antenna 31 is electrically connected to the circuit board 2 through the electrical connection assembly 4. The setting of combining the shell middle frame 33 and the NFC antenna 31 into one can effectively reduce the overall thickness of the handheld terminal device, and at the same time, it is conducive to improving the structural strength of the handheld terminal device by increasing the thickness of the middle frame assembly 3, and effectively improving the product competitiveness.

[0025] See also Figures 1 to 7 The NFC antenna 31 is provided with a first feeding terminal 311 and a second feeding terminal 312, and the electrical connection component 4 includes a first connecting member 41 and a second connecting member 42. When the middle frame component 3 is assembled and installed with the circuit board 2, the first feeding terminal 311 is crimped to the first connecting member 41, and the second feeding terminal 312 is crimped to the second connecting member 42.

[0026] The arrangement of the electrical connection assembly 4 is beneficial to improving the connection flexibility between the NFC antenna 31 and the circuit board 2, ensuring that the assembly difficulty is reduced and the production efficiency is improved.

[0027] Further, the first connecting member 41 and the second connecting member 42 are conductive spring pieces, and the first connecting member 41 and the second connecting member 42 both include a fixed portion 401, an elastic portion 402 and a connecting portion 403, the fixed portion 401 and the connecting portion 403 are respectively arranged at both ends of the elastic portion 402, the fixed portion 401 is fixedly connected to the circuit board 2, and when the middle frame assembly 3 is assembled with the circuit board 2, the first feeding end 311 is crimped to the connecting portion 403 of the first connecting member 41 and the elastic portion 402 of the first connecting member 41 is elastically deformed, and the second feeding end 312 is crimped to the connecting portion 403 of the second connecting member 42 and the elastic portion 402 of the second connecting member 42 is elastically deformed, The arrangement of the electrical connection assembly 4 is beneficial to improving the electrical connection stability between the NFC antenna 31 and the circuit board 2 , and ensuring stable contact between the spring piece and the feeding end of the NFC antenna 31 .

[0028] See also 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. The fixing member 32 includes a first stabilizing portion 321 and a second stabilizing portion 322. The first stabilizing portion 321 is arranged on the inner side of the NFC antenna 31, and the second stabilizing portion 322 is arranged on the outer side of the NFC antenna 31.

[0029] Furthermore, the NFC antenna 31 is provided with two first feeding blocks 314 extending out of the opening 313 corresponding to the opening 313 .

[0030] Specifically, in the first embodiment, the first connecting member 41 and the second connecting member 42 are arranged side by side and in parallel on the circuit board 2 corresponding to the two first feeding blocks 314 , but the present invention is not limited thereto.

[0031] See also Figure 7 In the second embodiment, the NFC antenna 31 is in a rectangular spiral shape, and the fixing member 32 includes a third stabilizing portion 323, a fourth stabilizing portion 324 and a fifth stabilizing portion 325. The third stabilizing portion 323 is arranged on the inner side of the NFC antenna 31, the fourth stabilizing portion 324 is arranged at the hollow position in the middle of the NFC antenna 31, and the fifth stabilizing portion 325 is arranged on the outer side of the NFC antenna 31.

[0032] Furthermore, a second feeding block 315 is respectively provided at the head end and the tail end of the NFC antenna 31 .

[0033] Specifically, in the second embodiment, the first connecting member 41 and the second connecting member 42 are staggeredly disposed on the circuit board 2 corresponding to the two second feeding blocks 315 , but the present invention is not limited thereto.

[0034] In the first and second embodiments, the structural metal parts built into the middle frame assembly 3 are used to realize the function of the NFC antenna 31 of the handheld terminal device, which can save the thickness space inside the handheld terminal device and help save the cost of an NFC-FPC antenna.

[0035] See also Figures 1 to 7 The fixing part 32 is made of plastic material and is formed in the accommodating hole 331 by in-mold injection molding, so as to achieve the effect of using a part of the middle frame assembly 3 as the NFC antenna 31, thereby eliminating the operation and welding costs of installing the NFC-FPC antenna and effectively reducing the cost.

[0036] Specifically, in the first and second embodiments, the NFC antenna 31 and the shell middle frame 33 are combined into one by in-mold injection molding. After the in-mold injection molding operation is completed, the excess plastic is removed by CNC or punching, so that the NFC antenna 31 is built into the middle frame assembly 3.

[0037] See also Figures 1 to 7 The material of the NFC antenna 31 and / or the shell middle frame 33 is alloy material.

[0038] Specifically, in the present embodiment, the NFC antenna 31 and the shell middle frame 33 are both made of alloy material, but not limited to this, the original front shell alloy is split into the NFC antenna 31 made of alloy material and the shell middle frame 33 made of alloy material, and the two are combined into one through in-mold injection molding. The shell middle frame 33 made of alloy material can be made thicker than the conventional design to increase the strength of the shell middle frame 33, so as to take into account the function of a part of the iron frame of the screen 1, make up for the disadvantage of the weak strength of the screen 1, which is conducive to reducing product costs while solving the strength problem of the screen 1, and effectively increasing the competitiveness of the equipment products.

[0039] Specifically, in this embodiment, the screen 1 is an LCM, but not limited thereto, a shell middle frame 33 made of alloy material is used as a metal protective shell of the screen 1, so that the screen 1 can be designed as a plastic frame, which is beneficial to further reduce the thickness of the handheld terminal device and enhance the product competitiveness.

[0040] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A handheld terminal device with under-screen NFC, characterized in that: include: screens and circuit boards; A middle frame assembly, the middle frame assembly is arranged between the screen and the circuit board, the middle frame assembly comprises an NFC antenna, a fixing part and a shell middle frame, the shell middle frame is provided with a receiving hole, the NFC antenna is arranged in the receiving hole, and the fixing part is arranged in the space in the receiving hole except the NFC antenna, so that the NFC antenna is fixedly connected to the shell middle frame; An electrical connection component is disposed on the circuit board, and two ends of the electrical connection component are respectively electrically contacted with the NFC antenna and the circuit board 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 electrical connection assembly includes a first connecting piece and a second connecting piece, and when the middle frame assembly is assembled and installed with the circuit board, the first feeding end is crimped to the first connecting piece, and the second feeding end is crimped to the second connecting piece.

3. The handheld terminal device with under-screen NFC according to claim 2, characterized in that: The first connector and the second connector are conductive spring pieces, and both the first connector and the second connector include a fixed portion, an elastic portion and a connecting portion, and the fixed portion and the connecting portion are respectively arranged at two ends of the elastic portion, and the fixed portion is fixedly connected to the circuit board. When the middle frame assembly is assembled and installed with the circuit board, the first feeding end is crimped to the connecting portion of the first connector and the elastic portion of the first connector is elastically deformed, and the second feeding end is crimped to the connecting portion of the second connector and the elastic portion of the second connector is elastically deformed.

4. The handheld terminal device with under-screen NFC according to claim 1, characterized in that: The fixing member is made of plastic material and is formed in the accommodating hole by in-mold injection molding.

5. The handheld terminal device with under-screen NFC according to claim 1, characterized in that: The NFC antenna is in a rectangular ring shape and is provided with an opening. The fixing member includes a first stabilizing portion and a second stabilizing portion. The first stabilizing portion is arranged on the inner side of the NFC antenna, and the second stabilizing portion is arranged on the outer side of the NFC antenna.

6. The handheld terminal device with under-screen NFC according to claim 5, characterized in that: The NFC antenna is provided with two first feeding blocks extending out of the opening corresponding to the opening.

7. The handheld terminal device with under-screen NFC according to claim 1, characterized in that: The NFC antenna is in a rectangular spiral shape, and the fixing member includes a third stabilizing portion, a fourth stabilizing portion and a fifth stabilizing portion, the third stabilizing portion is arranged on the inner side of the NFC antenna, the fourth stabilizing portion is arranged at a hollow position in the middle of the NFC antenna, and the fifth stabilizing portion is 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 with under-screen NFC according to claim 1, characterized in that: The NFC antenna and / or the housing middle frame are made of alloy material.

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