An injection molded IMD protective cover for a composite FPC

Abstract

The application discloses an IMD protective cover for injection molding composite FPC, which comprises an IMD protective cover body, a front cover body and a back cover body formed by bending, a main FPC assembly, the front cover body is provided with a front FPC, the back cover body is provided with a back FPC, a first connecting FPC is arranged at the corner of the front cover body and is signal connected with the front FPC, a second connecting FPC is arranged at the corner of the back cover body and is signal connected with the back FPC, the front FPC and the back FPC are arranged on the front cover body and the back cover body of the IMD protective cover body respectively, the first connecting FPC and the second connecting FPC which are signal connected with the front FPC and the back FPC are arranged at the corners of the front cover body and the back cover body correspondingly, an FPC network covering the key part of the protective cover is formed, illegal intrusion behavior can be effectively prevented, and the anti-tampering ability and the data security protection level of the POS machine are improved obviously.

Description

Technical Field

[0001] This invention relates to the field of POS machines or other security cover fields, and particularly to an IMD protective cover of injection-molded composite FPC. Background Technology

[0002] In the POS machine industry, a common security flaw in various design schemes lies in the significant security vulnerabilities present at the corners of the protective casing. These vulnerabilities allow criminals to easily penetrate the machine using precision drilling tools and miniature probes, stealing sensitive financial transaction data and important information from the core chip. This seriously threatens users' financial security and transaction privacy. Therefore, developing an IMD protective cover that effectively enhances security is a crucial issue that urgently needs to be addressed in the POS machine field. Summary of the Invention

[0003] The technical problem solved by this invention is to provide an IMD protective cover for injection-molded composite FPC that can effectively improve the level of safety protection.

[0004] The technical solution adopted by this invention to solve its technical problem is: Furthermore, an IMD protective cover for an injection-molded composite FPC is provided between the front FPC and the back FPC, including an IMD protective cover body, the IMD protective cover including a front cover body and a back cover body formed by bending, and also including a main FPC assembly, the main FPC assembly including a front FPC disposed on the front cover body and a back FPC disposed on the back cover body; A first connecting FPC is provided at the corner of the front cover, and the first connecting FPC is signal-connected to the front FPC. A second connecting FPC is provided at the corner of the back cover, and the second connecting FPC is signal-connected to the back FPC. (Connection lines.)

[0005] Furthermore, the front FPC, the back FPC, and the connecting lines are integrally molded.

[0006] Furthermore, the FPC component is injection molded and compositely connected to the MD protective cover body.

[0007] Furthermore, the first connecting FPC is welded to the front FPC using a HotBar welding process, and the second connecting FPC is welded to the back FPC using a HotBar welding process.

[0008] Furthermore, the IMD protective cover body is provided with a guide protrusion that cooperates with an external device. The guide protrusion is provided with a threaded connection hole, and the threaded connection hole is provided with a bolt for connecting the IMD protective cover body to the external device.

[0009] Furthermore, the IMD protective cover body has multiple protrusions on its side, and the protrusions have connection holes.

[0010] The beneficial effects of this invention are as follows: By setting front FPCs and back FPCs on the front and back covers of the IMD protective cover body, and correspondingly setting first and second connecting FPCs at the corners of the front and back covers for signal connection with the front and back FPCs, an FPC network covering the key parts of the protective cover is formed. When criminals attempt to drill or probe through weak points such as the corners of the protective cover, these FPC components can quickly detect abnormal physical contact or circuit changes, thereby triggering a security warning mechanism, effectively preventing illegal intrusion, and significantly improving the POS machine's anti-tampering capability and data security protection level. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the IMD protective cover of the injection-molded composite FPC according to an embodiment of this application.

[0012] Figure 2 This is a schematic diagram of the other side of the IMD protective cover of the injection-molded composite FPC according to an embodiment of this application.

[0013] The markings in the diagram are: front cover 1, back cover 2, front FPC 3, back FPC 4, first connecting FPC 5, second connecting FPC 6, connecting line 7, guide protrusion 8, bolt 9, protrusion 10, connecting hole 11. Detailed Implementation

[0014] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, an embodiment of this application discloses an IMD protective cover for injection-molded composite FPC, including an IMD protective cover body. The IMD protective cover includes a front cover 1 and a back cover 2 formed by bending. It also includes a main FPC assembly, which includes a front FPC 3 disposed on the front cover 1 and a back FPC 4 disposed on the back cover 2. A first connecting FPC5 is provided at the corner of the front cover 1, and the first connecting FPC5 is signal connected to the front FPC3. A second connecting FPC6 is provided at the corner of the back cover 2, and the second connecting FPC6 is signal connected to the back FPC4.

[0016] Specifically, the above structure is installed inside the POS machine. When criminals attempt to drill holes in the corner of the protective cover using precision tools, the drilling action will cause physical damage to the first connection FPC5 or the second connection FPC6 at that location, such as wire breakage or short circuit. At this time, the front FPC3 or the back FPC4 will immediately detect the abnormal change in the circuit and quickly feed this abnormal signal back to the main control system of the POS machine through the connection line 7, thereby protecting the weak link of the POS machine.

[0017] In this embodiment, a connecting line 7 is provided between the front FPC3 and the back FPC4.

[0018] Specifically, the connection line 7 can be in the form of flexible ribbon cable or printed circuit board, arranged along the edge of the IMD protective cover body, forming a complete signal transmission loop between the front FPC3 and the back FPC4, ensuring real-time data communication and collaborative operation between the front FPC3 and the back FPC4. For example, when the first connection FPC5 at the corner of the front cover 1 malfunctions, the front FPC3 can transmit the malfunction signal to the back FPC4 through this connection line 7, and vice versa, thereby ensuring that the main control system can comprehensively and timely obtain the status information of each key part of the protective cover.

[0019] In this embodiment, the front FPC3, the back FPC4, and the connecting line 7 are integrally formed.

[0020] Specifically, a one-piece molding process is used to integrate the front FPC3, the back FPC4, and the connecting lines 7 into a single unit. This design significantly improves the structural strength and stability of the FPC assembly, effectively preventing signal transmission failures caused by loose connections or poor contact between components. During production, high-precision flexible circuit board manufacturing processes allow for the complete laying and molding of all lines in one go, ensuring accurate line routing and a reasonable layout. This also reduces additional connection processes such as welding, lowering production complexity and costs, and enhancing the overall bending resistance and durability of the FPC assembly. This allows it to better adapt to the bending structure of the IMD protective cover and the complex installation environment inside the POS machine.

[0021] In this embodiment, the FPC component and the MD protective cover body are injection molded and composite connected.

[0022] Specifically, during the injection molding process, the pre-fabricated FPC component is placed in a specific cavity of the injection mold, and then molten plastic material is injected into the mold. As the plastic material fills the mold cavity, it bonds tightly to the surface of the FPC component. After the plastic cools and solidifies, the FPC component and the IMD protective cover body are firmly bonded together as a single unit. This injection molding composite connection method not only ensures the stable fixation of the FPC component on the protective cover body, preventing displacement or detachment during use, but also provides effective physical protection for the FPC component, preventing external environmental factors such as dust and moisture from corroding it. Simultaneously, the plastic material completely covers the edges and part of the surface of the FPC component, making the appearance of the protective cover body smoother and more even, improving the overall texture and structural strength of the product.

[0023] In this embodiment, the first connecting FPC5 is welded to the front FPC3 using a HotBar welding process, and the second connecting FPC6 is welded to the back FPC4 using a HotBar welding process.

[0024] Specifically, the HotBar soldering process is a precision soldering technique that uses pulsed heating. During the soldering process, the pads of the first connecting FPC5 and the front-side FPC3 are precisely aligned. Then, the electrodes of the HotBar soldering head are pressed onto the soldering position. Preset temperature, pressure, and time parameters rapidly melt the solder or conductive adhesive on the pads, forming a reliable electrical connection. This soldering method offers advantages such as high soldering precision, strong solder joints, low impedance, and a small heat-affected zone. It effectively ensures the stability and reliability of signal transmission between the first connecting FPC5 and the front-side FPC3, preventing delays or failures in safety warning signals due to poor connections. Similarly, the soldering of the second connecting FPC6 to the back-side FPC4 uses the same process, ensuring a high-strength, low-resistance connection between the corner connecting FPC and the main FPC, further enhancing the security and stability of the entire FPC network.

[0025] In this embodiment, the IMD protective cover body is provided with a guide protrusion 8 that cooperates with an external device. The guide protrusion 8 is provided with a threaded connection hole 11, and the threaded connection hole 11 is provided with a bolt 9 for connecting the IMD protective cover body to the external device.

[0026] Specifically, the guide protrusion 8 is positioned to match the positioning hole on the external device. During installation, the guide protrusion 8 can be inserted into the positioning hole for quick positioning and guidance, ensuring that the IMD protective cover body can be accurately and stably installed in the preset position, avoiding gaps between the protective cover and the machine body or damage to internal components due to installation deviations. The threaded connection hole 11 extends through the entire height of the guide protrusion 8, and its inner wall is tapped with standard threads that match the external threads of the bolt 9. After the guide protrusion 8 is positioned, the bolt 9 is inserted through the corresponding mounting hole of the external device and screwed into the threaded connection hole 11. Through the tight fit between the bolt 9 and the thread, the IMD protective cover body can be firmly locked onto the external device, effectively preventing the protective cover from loosening or falling off due to vibration, impact, or other factors during use, further ensuring the protective cover's protection of the POS machine's internal core components. Moreover, this threaded connection method has a simple structure, reliable connection, and facilitates later maintenance and disassembly.

[0027] In this embodiment, the side of the IMD protective cover body is provided with a plurality of protrusions 10, and the protrusions 10 are provided with connection holes 11.

[0028] Specifically, these protrusions 10 are evenly distributed along the side of the IMD protective cover body, and their number and position are designed according to the internal installation structure of the POS machine body. The connecting holes 11 can cooperate with the pre-set positioning posts or studs inside the body. This design of protrusions 10 and connecting holes 11 not only helps guide the protrusions 8 to achieve precise installation of the protective cover, but also forms multi-point fixation on the side of the protective cover, effectively dispersing external forces and preventing the protective cover from deforming due to excessive local stress, thereby ensuring that the internal structure such as the FPC components is not damaged and maintaining its normal safety monitoring function.

[0029] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An IMD protective cover for injection-molded composite FPC, characterized in that: The IMD protective cover body includes a front cover (1) and a back cover (2) formed by bending, and also includes a main FPC assembly, which includes a front FPC (3) disposed on the front cover (1) and a back FPC (4) disposed on the back cover (2). A first connecting FPC (5) is provided at the corner of the front cover (1), and the first connecting FPC (5) is signal connected to the front FPC (3). A second connecting FPC (6) is provided at the corner of the back cover (2), and the second connecting FPC (6) is signal connected to the back FPC (4).

2. The IMD protective cover for injection-molded composite FPC as described in claim 1, characterized in that: A connecting line (7) is provided between the front FPC (3) and the back FPC (4).

3. The IMD protective cover for injection-molded composite FPC as described in claim 2, characterized in that: The front FPC (3), the back FPC (4), and the connecting lines (7) are integrally formed.

4. The IMD protective cover for injection-molded composite FPC as described in claim 1, characterized in that: The FPC component is injection molded and compositely connected to the MD protective cover body.

5. The IMD protective cover for injection-molded composite FPC as described in claim 1, characterized in that: The first connecting FPC (5) is welded to the front FPC (3) by HotBar welding process, and the second connecting FPC (6) is welded to the back FPC (4) by HotBar welding process.

6. The IMD protective cover for injection-molded composite FPC as described in claim 1, characterized in that: The IMD protective cover body is provided with a guide protrusion (8) that cooperates with an external device. The guide protrusion (8) is provided with a threaded connection hole (11). The threaded connection hole (11) is provided with a bolt (9) for connecting the IMD protective cover body to the external device.

7. The IMD protective cover for injection-molded composite FPC as described in claim 1, characterized in that: The IMD protective cover body has multiple protrusions (10) on its side, and the protrusions (10) have connection holes (11).

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