Electronic device

Abstract

The present invention relates to the field of tamper resistance for electronic devices, and disclosed is an electronic device, comprising a front housing frame, a display screen, a rear housing, and at least two tamper-resistant assemblies. The front housing frame comprises a first corner part and a second corner part which are diagonally arranged; the display screen is arranged on the front housing frame; one of the tamper-resistant assemblies is arranged on the first corner part, and the other tamper-resistant assembly is arranged on the second corner part; the rear housing is fixedly connected to the front housing frame, and the tamper-resistant assemblies are clamped when the front housing frame is connected to the rear housing. In the present invention, by hollowing out the middle portion of a front housing to form the front housing frame, weight reduction of the front housing can be achieved, thereby realizing overall weight reduction of the electronic device; and by providing two tamper-resistant assemblies along a diagonal line of the front housing frame, the tamper-resistant assemblies are supported and clamped by means of the front housing frame and the rear housing, thereby ensuring reliable connection between components within the tamper-resistant assemblies, achieving a tamper-resistant function, satisfying the tamper-resistant requirements of the display screen, and improving the overall use safety of the electronic device.

Description

An electronic device Technical Field

[0001] This invention relates to the field of anti-tamper technology for electronic devices, and more particularly to an electronic device. Background Technology

[0002] Existing electronic devices such as POS machines and consumer tablets generally include components such as a front shell, display screen, motherboard, battery, and back shell. The display screen, motherboard, and battery are usually mounted on the front shell, so the front shell needs to be strong enough to ensure that the components mounted on the front shell can be fixed reliably. This results in the front shell having a certain thickness and weight, which is not conducive to reducing the weight and thickness of electronic devices.

[0003] To reduce the weight and thickness of electronic devices, some electronic devices adopt a flip-chip design for the display screen. This involves hollowing out the center of the front casing and mounting most structural components, such as the motherboard and battery, onto the rear casing, then attaching the display screen and the front casing assembly to the rear casing. However, for financial products, it is also necessary to ensure the tamper resistance of the display screen to prevent unauthorized disassembly and improve the security of the financial product. Currently, tamper resistance for the display screen typically involves attaching a mesh (tamper protection circuitry) to the center of the display screen, which is then connected to the motherboard via a zebra strip to prevent the display screen from being pried open and used to attack security devices on the motherboard. If financial products also adopt a flip-chip design with a hollowed-out front casing, the zebra strip would lack a supporting position on the front casing, making it impossible to reliably connect the zebra strip to the mesh, thus rendering the tamper resistance ineffective and compromising the security of the financial product. Summary of the Invention

[0004] The purpose of this application is to provide an electronic device that not only reduces the weight of the entire device but also provides an anti-tamper function for the display screen.

[0005] The technical solution provided in this application is as follows:

[0006] An electronic device, comprising:

[0007] A front shell frame, the front shell frame including a first corner portion and a second corner portion arranged diagonally;

[0008] The display screen is mounted on the front housing frame.

[0009] At least two tamper-proof components, one of which is disposed at the first corner and the other of which is disposed at the second corner;

[0010] The rear shell is fixedly connected to the front shell frame, and the anti-tamper component is clamped when the front shell frame is connected to the rear shell.

[0011] In some embodiments, the tamper-proof component includes a tamper-proof circuit board and a zebra stripe. A first area of ​​the tamper-proof circuit board abuts against the front shell frame, a second area of ​​the tamper-proof circuit board is attached to the display screen, the zebra stripe abuts against the first area of ​​the tamper-proof circuit board, and the zebra stripe and the first area of ​​the tamper-proof circuit board are clamped when the front shell frame is connected to the rear shell.

[0012] In some embodiments, a motherboard is also included, which is disposed on the rear cover, and the zebra stripe is electrically connected to the motherboard.

[0013] In some embodiments, the tamper-proof component further includes a zebra strip PCB, the zebra strip being connected to the zebra strip PCB and electrically connected to the motherboard.

[0014] In some implementations, the tamper protection assembly further includes an adapter FPC, through which the zebra stripe PCB is electrically connected to the motherboard.

[0015] In some embodiments, the system also includes a display FPC and a connector, one end of which is electrically connected to the display screen and the other end of which is electrically connected to the motherboard via the connector.

[0016] In some embodiments, screw holes are provided on the front shell frame at the first corner and the second corner, respectively, and the first corner and the second corner of the front shell frame are fastened to the rear shell by screws engaging with the screw holes.

[0017] In some embodiments, the front shell frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate connected end to end in sequence, wherein the connection between the first side plate and the second side plate forms the first corner, and the connection between the third side plate and the fourth side plate forms the second corner;

[0018] The first area of ​​the anti-tamper circuit board located at the first corner abuts against the end of the first side plate near the second side plate, or the first area of ​​the anti-tamper circuit board located at the first corner abuts against the end of the second side plate near the first side plate.

[0019] The first area of ​​the anti-tamper circuit board located at the second corner abuts against the end of the third side plate near the fourth side plate, or the first area of ​​the anti-tamper circuit board located at the second corner abuts against the end of the fourth side plate near the third side plate.

[0020] In some embodiments, the front shell frame further includes a third corner portion, and the number of anti-tamper components is three, with the third anti-tamper component disposed at the third corner portion.

[0021] In some embodiments, the front shell frame further includes a third corner portion and a fourth corner portion arranged diagonally, and the number of anti-tamper components is four, with the third anti-tamper component disposed at the third corner portion and the fourth anti-tamper component disposed at the fourth corner portion.

[0022] The technical advantages of this application are as follows: by hollowing out the middle of the front shell to form the front shell frame, the weight of the front shell can be reduced, and the weight of the whole machine can be reduced; by setting two anti-tamper components on the diagonal of the front shell frame, the anti-tamper components can be supported and clamped by the front shell frame and the rear shell, ensuring reliable connection between the components inside the anti-tamper components, realizing the anti-tamper function, meeting the anti-tamper requirements of the display screen, and improving the safety of the whole machine. Attached Figure Description

[0023] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] Figure 1 is a schematic diagram of the structure of an electronic device without a back cover provided in an embodiment of this application;

[0025] Figure 2 is an enlarged view of point A in Figure 1;

[0026] Figure 3 is a schematic diagram of the structure of the Zebra Strip PCB removed in Figure 2;

[0027] Figure 4 is an exploded schematic diagram of an electronic device provided in an embodiment of this application;

[0028] Figure 5 is a partial structural schematic diagram of an electronic device provided in an embodiment of this application.

[0029] Reference numerals: 100, Front shell frame; 101, First corner; 102, Second corner; 103, Third corner; 104, Fourth corner; 105, Screw hole; 110, First side panel; 120, Second side panel; 130, Third side panel; 140, Fourth side panel; 200, Display screen; 300, Rear shell; 400, Anti-tamper assembly; 410, Anti-tamper circuit board; 411, First area; 412, Second area; 420, Zebra stripe; 430, Zebra stripe PCB; 440, Adapter FPC; 500, Mainboard; 600, Display screen FPC; 700, Connector. Detailed Implementation

[0030] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0032] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0033] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0034] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) are relative rather than absolute when describing the structure and movement of the various components, and are not intended to limit the direction of the product during actual use.

[0036] Furthermore, in the description of this application, ordinal numbers, such as "first" and "second," are used only to distinguish related objects and should not be construed as indicating or implying the relative importance or order between related objects.

[0037] According to the embodiments provided in this application, as shown in FIG1, an electronic device includes a front shell frame 100, a display screen 200, a rear shell 300, and at least two anti-tamper components 400. The front shell frame 100 includes a first corner portion 101 and a second corner portion 102 arranged diagonally. The display screen 200 is disposed on the front shell frame 100. One anti-tamper component 400 is disposed on the first corner portion 101, and the other anti-tamper component 400 is disposed on the second corner portion 102. The rear shell 300 is fixedly connected to the front shell frame 100, and the anti-tamper component 400 is clamped when the front shell frame 100 and the rear shell 300 are connected.

[0038] Specifically, the front shell bezel 100 is a frame structure formed by hollowing out the middle part of the front shell. The shape of the front shell bezel 100 can be designed according to the shape of the electronic device. By hollowing out the middle part of the front shell to form the front shell bezel 100, and placing components such as the motherboard on the rear shell 300, the weight of the front shell can be reduced, making the whole device thinner and lighter. The display screen 200 is mounted on the front shell bezel 100, and the front shell bezel 100 corresponds to the black border area (BM area) on the display screen 200. The black border area on the display screen 200 is located at the four edges of the display screen 200 and is used to block the light from the backlight panel to ensure that no light leaks from the edges when the screen is displayed, thereby improving the display effect of the display screen 200.

[0039] The front shell frame 100 includes a first corner 101 and a second corner 102, which are located on a diagonal line of the front shell frame 100. In this embodiment, when there are two anti-tamper components 400, the first anti-tamper component 400 is disposed at the first corner 101, and the second anti-tamper component 400 is disposed at the second corner 102. Each anti-tamper component 400 is connected to the front shell frame 100 in the same way. In this embodiment, the two anti-tamper components 400 are arranged diagonally, so that no matter which corner of the front shell frame 100 is lifted, the anti-tamper component 400 will be triggered to prevent the display screen 200 from being tampered with.

[0040] The anti-tamper component 400 is located at the corner of the front shell frame 100. When the rear shell 300 is fixedly connected to the front shell frame 100, the anti-tamper component 400 is clamped, so that one side of the anti-tamper component 400 can be supported by the front shell frame 100 and the other side of the anti-tamper component 400 can be supported by the rear shell 300, so as to ensure reliable connection between the components inside the anti-tamper component 400 and realize the anti-tamper function.

[0041] In this embodiment, by hollowing out the middle of the front shell to form the front shell frame 100, the weight of the front shell and the overall weight of the device can be reduced. By setting two anti-tamper components 400 on the diagonal of the front shell frame 100, the front shell frame 100 and the rear shell 300 support and clamp the anti-tamper components 400, ensuring reliable connection between the components inside the anti-tamper components 400, realizing the anti-tamper function, meeting the anti-tamper requirements of the display screen 200, and improving the overall safety of the device.

[0042] In some embodiments, as shown in Figures 2 and 3, the tamper-proof assembly 400 includes an tamper-proof circuit board 410 and a zebra stripe 420. The first region 411 of the tamper-proof circuit board 410 abuts against the front shell frame 100, and the second region 412 of the tamper-proof circuit board 410 is attached to the display screen 200. The zebra stripe 420 abuts against the first region 411 of the tamper-proof circuit board 410. When the front shell frame 100 is connected to the rear shell 300, the zebra stripe 420 and the first region 411 of the tamper-proof circuit board 410 are clamped together.

[0043] In this embodiment, each tamper-proof component 400 includes a tamper-proof circuit board (MESH) 410 and a zebra strip 420. The tamper-proof circuit board 410 includes a first region 411 and a second region 412. The first region 411 of the tamper-proof circuit board 410 is the region connected to the zebra strip 420, and the second region 412 of the tamper-proof circuit board 410 is the region connected to the display screen 200. The first region 411 of the tamper-proof circuit board 410 is disposed on the front shell frame 100, and the second region 412 of the tamper-proof circuit board 410 is attached to the display screen 200. The second regions 412 of the two tamper-proof circuit boards 410 are also diagonally arranged on the display screen 200. When the display screen 200 is illegally disassembled, the second region 412 of the tamper-proof circuit board 410 is damaged, causing the circuit on the tamper-proof circuit board 410 to break, thereby triggering an alarm mechanism to prevent illegal tampering.

[0044] The zebra strip 420 is located on the side of the anti-tamper circuit board 410 away from the display screen 200 and is connected to the first area 411 of the anti-tamper circuit board 410. One side of the zebra strip 420 is supported by the front shell frame 100. When the rear shell 300 is connected to the front shell frame 100, the other side of the zebra strip 420 is supported by the rear shell 300. After the rear shell 300 is fixedly connected to the front shell frame 100, the zebra strip 420 can be pressed tightly to ensure reliable contact between the zebra strip 420 and the anti-tamper circuit board 410. This prevents the zebra strip 420 from failing to maintain reliable contact with the anti-tamper circuit board 410 and triggering the alarm mechanism when the electronic device is dropped or impacted during normal use. In this embodiment, the zebra strip 420 is clamped between the front shell frame 100 and the rear shell 300 to achieve reliable contact between the zebra strip 420 and the anti-tamper circuit board 410. This can prevent unauthorized disassembly of electronic devices from the rear shell 300. When the rear shell 300 is disassembled, the zebra strip 420 loses the clamping force of the rear shell 300, causing the zebra strip 420 to lose reliable contact with the anti-tamper circuit board 410 and triggering an alarm mechanism to achieve the anti-tamper function.

[0045] In some embodiments, as shown in FIG1, the front shell frame 100 includes a first side plate 110, a second side plate 120, a third side plate 130 and a fourth side plate 140 connected end to end in sequence. The connection between the first side plate 110 and the second side plate 120 forms a first corner 101, and the connection between the third side plate 130 and the fourth side plate 140 forms a second corner 102.

[0046] The first region 411 of the tamper-proof circuit board 410 located at the first corner 101 abuts against the end of the first side plate 110 near the second side plate 120, or the first region 411 of the tamper-proof circuit board 410 located at the first corner 101 abuts against the end of the second side plate 120 near the first side plate 110. That is, the first region 411 of the tamper-proof circuit board 410 located at the first corner 101 abuts against the first side plate 110 or the second side plate 120, and the zebra strip 420 is supported in the direction of the front shell frame 100 by the first side plate 110 or the second side plate 120.

[0047] The first region 411 of the tamper-proof circuit board 410 located at the second corner 102 abuts against the end of the third side plate 130 near the fourth side plate 140, or the first region 411 of the tamper-proof circuit board 410 located at the second corner 102 abuts against the end of the fourth side plate 140 near the third side plate 130. That is, the first region 411 of the tamper-proof circuit board 410 located at the second corner 102 abuts against the third side plate 130 or the fourth side plate 140, and the zebra strip 420 is supported in the direction of the front shell frame 100 by the third side plate 130 or the fourth side plate 140.

[0048] Furthermore, the junction of the second side plate 120 and the third side plate 130 also forms the triangular portion 103 of the front shell frame 100, and the junction of the fourth side plate 140 and the first side plate 110 also forms the fourth corner portion 104 of the front shell frame 100.

[0049] In some embodiments, the number of anti-tamper components 400 is three: the first anti-tamper component 400 is disposed at the first corner 101 of the front shell frame 100, the second anti-tamper component 400 is disposed at the second corner 102 of the front shell frame 100, and the third anti-tamper component 400 is disposed at the third corner 103 of the front shell frame 100. Providing three anti-tamper components 400 can further improve the anti-tamper performance of the electronic device, thereby further enhancing the safety of using the electronic device.

[0050] In some embodiments, the number of anti-tamper components 400 is four: the first anti-tamper component 400 is disposed at the first corner 101 of the front housing frame 100, the second anti-tamper component 400 is disposed at the second corner 102 of the front housing frame 100, the third anti-tamper component 400 is disposed at the third corner 103, and the fourth anti-tamper component 400 is disposed at the fourth corner 104. Distributing one anti-tamper component 400 at each corner of the front housing frame 100 further enhances the anti-tamper performance of the electronic device, thereby further improving the security of the electronic device.

[0051] In some embodiments, as shown in Figures 2 and 3, screw holes 105 are respectively provided at the first corner 101 and the second corner 102 of the front shell frame 100. The first corner 101 and the second corner 102 of the front shell frame 100 are respectively fastened to the rear shell 300 by screws engaging with the screw holes 105. The fastening connection between the front shell frame 100 and the rear shell 300 by screws provides sufficient fastening force for the zebra strip 420 to ensure a reliable connection between the zebra strip 420 and the anti-tamper circuit board 410. Of course, the front shell frame 100 and the rear shell 300 can also be connected by other fastening structures, such as latches, buckles, etc., but it is necessary to ensure that the front shell frame 100 and the rear shell 300 have sufficient clamping force to ensure a reliable connection between the zebra strip 420 and the anti-tamper circuit board 410. The third triangular portion 103 and the fourth corner portion 104 of the front shell frame 100 can also be fixedly connected to the rear shell 300 by screws.

[0052] In some embodiments, as shown in FIG1, the device further includes a motherboard 500, which is disposed on the rear cover 300, and the zebra strip 420 is electrically connected to the motherboard 500. As shown in FIGS. 2 and 4, the anti-tamper component 400 also includes a zebra strip PCB 430, which is a circuit board for electrically connecting the zebra strip 420 and the motherboard 500. The zebra strip 420 and the zebra strip PCB 430 are abutted together, and the zebra strip PCB 430 is electrically connected to the motherboard 500. In this embodiment, the zebra strip 420 is electrically connected to the motherboard 500 through the zebra strip PCB 430. Further, the anti-tamper component 400 also includes an adapter FPC 440, which is a flexible circuit board for electrically connecting the zebra strip PCB 430 and the motherboard 500. The zebra strip PCB 430 is electrically connected to the motherboard 500 through the adapter FPC 440 to facilitate the arrangement of the zebra strip PCB 430 and the motherboard 500 within the electronic device.

[0053] In some embodiments, as shown in FIG5, the electronic device further includes a display screen FPC 600 and a connector 700. The display screen FPC 600 is a flexible circuit board that enables electrical connection between the display screen 200 and the motherboard 500. One end of the display screen FPC 600 is electrically connected to the display screen 200, and the other end of the display screen FPC 600 is electrically connected to the motherboard 500 via the connector 700. The display screen 200 is fastened to the motherboard 500 via the connector 700. The connection between the display screen 200 and the motherboard 500 can also form a tamper-proof point, giving the display screen 200 at least three tamper-proof points, thereby improving the safety of the electronic device.

[0054] In one specific embodiment, as shown in Figures 1 to 5, the front shell frame 100 is hollowed out corresponding to the LCD portion of the display screen 200. The display screen 200 is adhesively fixed to the front of the front shell frame 100, and an anti-tamper circuit board 410 is attached to the diagonal position on the back of the front shell frame 100, forming a front shell assembly. The main board 500 is fixed to the rear shell 300, and the zebra strip 420 is attached to the zebra strip PCB 430. Two zebra strip PCBs 430 are then fixed to the diagonal positions of the rear shell 300. The zebra strip PCBs 430 are connected to the main board 500 via an adapter FPC 440, forming a rear shell assembly. Finally, the front shell assembly is inverted and inserted into the rear shell assembly. The anti-tamper circuit board 410 of the front shell assembly and the zebra strip 420 of the rear shell assembly are electrically connected to the main board 500. The rear shell 300 and the front shell frame 100 are then locked together with screws to ensure reliable contact between the zebra strip 420 and the anti-tamper circuit board 410. The display FPC600 of the front shell assembly is connected to the motherboard 500 via connector 700, so that the display 200 has at least 3 anti-tampering points, which meets the anti-tampering requirements of the display 200. The weight of the front shell is greatly reduced, and the thickness of the whole machine does not need to take into account the thickness of the front shell wall, thus reducing the overall thickness.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0056] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: A front shell frame, the front shell frame including a first corner portion and a second corner portion arranged diagonally; The display screen is mounted on the front housing frame. At least two tamper-proof components, one of which is disposed at the first corner and the other of which is disposed at the second corner; The rear shell is fixedly connected to the front shell frame, and the anti-tamper component is clamped when the front shell frame is connected to the rear shell.

2. The electronic device according to claim 1, characterized in that, The anti-tamper component includes an anti-tamper circuit board and a zebra stripe. The first area of ​​the anti-tamper circuit board abuts against the front shell frame, the second area of ​​the anti-tamper circuit board is attached to the display screen, the zebra stripe abuts against the first area of ​​the anti-tamper circuit board, and the zebra stripe and the first area of ​​the anti-tamper circuit board are clamped when the front shell frame is connected to the rear shell.

3. An electronic device according to claim 2, characterized in that, It also includes a motherboard, which is mounted on the rear cover, and the zebra stripe is electrically connected to the motherboard.

4. An electronic device according to claim 3, characterized in that, The anti-tamper component also includes a zebra strip PCB, the zebra strip is connected to the zebra strip PCB, and the zebra strip PCB is electrically connected to the motherboard.

5. An electronic device according to claim 4, characterized in that, The anti-tamper component also includes an adapter FPC, through which the Zebra Strip PCB is electrically connected to the motherboard.

6. An electronic device according to claim 3, characterized in that, It also includes a display FPC and a connector, one end of which is electrically connected to the display screen, and the other end of which is electrically connected to the motherboard via the connector.

7. An electronic device according to claim 1, characterized in that, The front shell frame is provided with screw holes at the first corner and the second corner, respectively. The first corner and the second corner of the front shell frame are respectively fastened to the rear shell by screws engaging with the screw holes.

8. An electronic device according to any one of claims 2-6, characterized in that, The front shell frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate connected end to end in sequence. The connection between the first side plate and the second side plate forms the first corner, and the connection between the third side plate and the fourth side plate forms the second corner. The first area of ​​the anti-tamper circuit board located at the first corner abuts against the end of the first side plate near the second side plate, or the first area of ​​the anti-tamper circuit board located at the first corner abuts against the end of the second side plate near the first side plate. The first area of ​​the anti-tamper circuit board located at the second corner abuts against the end of the third side plate near the fourth side plate, or the first area of ​​the anti-tamper circuit board located at the second corner abuts against the end of the fourth side plate near the third side plate.

9. An electronic device according to any one of claims 1-7, characterized in that, The front shell frame also includes a third corner portion, and the number of anti-tamper components is three, with the third anti-tamper component disposed at the third corner portion.

10. An electronic device according to any one of claims 1-7, characterized in that, The front shell frame also includes a third corner portion and a fourth corner portion arranged diagonally. The number of anti-disassembly components is four, with the third anti-disassembly component located at the third corner portion and the fourth anti-disassembly component located at the fourth corner portion.

Images