A safety protection structure
By adopting a combination of secure injection-molded brackets and flexible installation lines in financial payment devices, the problems of complex structure and poor stability in existing technologies are solved, achieving simplified assembly, reduced costs, and improved protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU MEIKEXIN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-21
AI Technical Summary
Existing financial payment devices have complex security protection structures, are difficult to assemble, and are easily cracked. Traditional circuit boards have poor stability in high temperature and high humidity environments, which can easily lead to misjudgments or information leaks.
It adopts a safety injection-molded bracket and flexible installation circuit, which are connected by adhesive or hot melt adhesive. The flexible installation circuit is integrally formed with the installation part. Combined with conductive connection components and signal shielding film, it forms a stable bending area and a mesh safety line structure to enhance protection.
The simplified structure reduces assembly complexity, lowers material costs, enhances protection, prevents information leakage, and increases the difficulty of hacking and device stability.
Smart Images
Figure CN224538542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of financial payment equipment technology, and more specifically, to a security protection structure. Background Technology
[0002] Currently, the IC chips and card-swiping components of financial payment devices (POS devices and desktop payment devices, etc.) on the market need to be protected to prevent hackers from violently disassembling and attacking them, short-circuiting the lines to steal data, and thus engaging in unsafe acts such as fraudulently swiping bank cards.
[0003] The closest existing technology is disclosed in the patent announcement number CN209514794U, which discloses a smart POS machine with protection function, including a motherboard circuit board, a frame board, a cover plate, a security chip, and a conductive zebra strip. The frame board and the cover plate form a shell that is fixedly fastened to the motherboard circuit board. Security lines are provided inside both the frame board and the cover plate. The two ends of the conductive zebra strip are connected to the frame board and the motherboard circuit board, respectively. The security chip is installed on the motherboard circuit board and is located inside the shell formed by the frame board and the cover plate. The security lines in the motherboard circuit board, the cover plate, the frame board, and the conductive zebra strip are interconnected and have a grid-like routing. The security lines in the motherboard circuit board are connected to the security chip.
[0004] This structure uses a combination of multi-layer rigid circuit boards, namely motherboard, frame board, cover plate and conductive zebra strips. It relies on a complex multi-layer circuit board design, which makes the structure complex and difficult to assemble. Moreover, the external structure is easy to crack layer by layer, and the three-dimensional protection is insufficient. In addition to the rigid circuits.
[0005] The existing market offers alternatives such as PTF silver paste circuits, which are printed and stretched on PET. However, PTF silver paste circuits have insufficient tensile strength and are prone to breakage / short circuits, causing equipment to misjudge self-locking. Alternatively, FPC copper foil circuits can be used as alternatives. However, FPC copper foil circuits are expensive and are prone to bubbling and delamination in high temperature and humidity environments, resulting in poor structural stability.
[0006] In view of this, the present invention proposes a safety protection structure with a simple structure and few exposed points. Utility Model Content
[0007] The purpose of this utility model is to provide a safety protection structure that is simple in structure and has few exposed points.
[0008] A safety protection structure, characterized in that it includes a safety injection-molded bracket 1, a flexible mounting line 2, and a conductive connection component 3, wherein: the safety injection-molded bracket 1 has a mounting part 5, the mounting part 5 has a flexible mounting line 2, the side of the flexible mounting line 2 is a bending area 6, the bending area 6 is completely fitted and fixed to the mounting part 5, the inner side of the bending area 6 of the flexible mounting line 2 has two conductive ends 10, each conductive end 10 is provided with a conductive connection component 3, each conductive end 10 is electrically connected to the main circuit board of an external device through the conductive connection component 3, and the safety injection-molded bracket 1 is fixedly connected to the external device.
[0009] In some embodiments, the flexible mounting line 2 and the mounting part 5 are directly bonded by adhesive material, or the flexible mounting line 2 is integrally formed and connected to the mounting part 5 by hot melt adhesive under high temperature conditions. The integral forming connection is more preferred.
[0010] Furthermore, the bending angle of the bending area 6 is greater than or equal to 90°, forming a stable right-angle or obtuse-angle structure, which increases the physical operating space required for attackers to damage the line, forcing intrusion tools to cut in from a larger angle to attack the IC or communication signal on the flexible installation line 2, thus increasing the difficulty of cracking. 90° is the preferred angle.
[0011] In some embodiments, the connection between the bending area 6 and the main body 7 in the middle of the bending area 6 is straight or arc-shaped, with the arc shape being more preferred. Firstly, the arc-shaped design expands the contact surface between the circuit layer and the injection molded bracket, enhances the bonding strength, and prevents delamination or peeling. Secondly, it disperses external impact forces, reduces fatigue damage in the bending area, and extends the service life of the flexible circuit layer.
[0012] In some embodiments, the flexible mounting line 2 may be either a PI silver paste line or a PI aluminum foil line.
[0013] Furthermore, PI aluminum foil circuits are more preferably double-layer PI aluminum foil circuits, as the aluminum foil layers have built-in electromagnetic shielding function and the ductility of the aluminum foil effectively absorbs mechanical shocks, preventing circuit breakage.
[0014] Furthermore, the preferred PI silver paste circuit is the Mesh circuit, which is formed by printing two layers of flexurally resistant silver paste on the PI film. The two layers of flexurally resistant silver paste make the flexible mounting circuit more stable and can be directly printed and formed.
[0015] In some embodiments, a signal shielding film layer 12 is provided between the flexible mounting line 2 and the conductive connection component 3 to shield the signals of the electronic components of the flexible mounting line 2. Furthermore, the signal shielding film layer 12 is fully covered on the inner side of the flexible mounting line 2 to ensure shielding without dead angles, especially providing comprehensive protection for key parts such as bending areas to prevent electromagnetic signal leakage or detection.
[0016] Furthermore, the material of the signal shielding film layer 12 is a thin film or coating material that can shield electromagnetic signals.
[0017] Furthermore, the film or coating can be made of aluminum foil, copper foil, microwave absorbing material, or ferrite material.
[0018] In some embodiments, the side of the safety injection molded bracket 1 is also provided with a guide ramp to facilitate the corresponding connection between the safety injection molded bracket 1 and the external equipment assembly structure.
[0019] In some embodiments, the flexible installation line 2 is fully equipped with safety line groups 9, which include multiple sets of horizontal lines 91 and multiple sets of vertical lines 92. The multiple sets of horizontal lines 91 and multiple sets of vertical lines 92 are arranged vertically to form a mesh safety line structure. The flexible installation line 2 is provided with through holes 93, which allow the lines on both the top and bottom sides of the mesh safety line structure to be conductive.
[0020] Furthermore, the spacing between the mesh security line structures is ≥3mil.
[0021] Furthermore, the two adjacent conductive ends 10 are located on the bottom surface near the bending area 6, and the wiring path of the conductive ends 10 crosses the entire safety line group 9, thereby improving safety.
[0022] In some embodiments, the conductive connection component 3 includes a zebra strip 31 and a limiting block 32. Each conductive end 10 is provided with a zebra strip 31 and a limiting block 32 is provided on the side of the zebra strip 31 to constrain the position of the zebra strip 31 and at the same time enable the zebra strip 31 to meet the position of the pads on the main circuit board of the external device, thereby achieving precise conductivity.
[0023] In some embodiments, the safety injection molded bracket 1 is provided with a snap-fit structure on its side. The snap-fit structure is a male-female snap-fit structure, which facilitates the fixed connection of the safety injection molded bracket 1 with external equipment.
[0024] The beneficial effects of this utility model are as follows: This utility model proposes a safety protection structure including a safety injection-molded bracket 1, a flexible mounting line 2, and a conductive connection component 3. The safety injection-molded bracket 1 has a mounting part 5, and the mounting part 5 has a flexible mounting line 2. The flexible mounting line 2 is directly bonded to the mounting part 5 with adhesive material, or the flexible mounting line 2 is integrally formed and connected to the mounting part 5 under high temperature conditions with hot melt adhesive. The side of the flexible mounting line 2 is a bending area 6, which is completely fitted with the mounting part 5, so that it is completely integrally formed and connected with the safety injection-molded bracket 1. The flexible mounting line 2 replaces the traditional rigid multilayer circuit board and PTF silver paste circuit, which simplifies the structure, reduces material costs and processing steps, and reduces assembly complexity. The injection molding process completely fits the flexible aluminum foil circuit layer with the safety injection-molded bracket, eliminating the gaps and exposure points between traditional multilayer circuit boards, preventing external intrusion or short-circuit risks. A signal shielding film layer 12 is provided between the flexible mounting line 2 and the conductive connection component 3 to shield the electronic component signals of the flexible mounting line 2, preventing and reducing the risk of hackers recording information. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 and Embodiment 2 of this application.
[0026] Figure 2 This is a schematic diagram of the connection structure between the flexible installation line and the safety injection molded bracket in Embodiments 1 and 2 of this application.
[0027] Figure 3 This is an overall exploded structural diagram of Embodiments 1 and 2 of this application.
[0028] Figure 4 This is a schematic diagram of the safety wiring group for the flexible installation circuit of Embodiments 1 and 2 of this application.
[0029] Figure 5 This is a schematic diagram of multiple vertical lines in the flexible installation circuit of Embodiments 1 and 2 of this application.
[0030] Figure 6 This is a schematic diagram of multiple sets of horizontal lines for the flexible installation circuit of Embodiments 1 and 2 of this application.
[0031] Figure 7 This is a schematic diagram of the conductive end of the flexible installation line in Embodiments 1 and 2 of this application.
[0032] Explanation of main component symbols
[0033] 1. Safety injection molded bracket; 2. Flexible installation line; 3. Conductive connection assembly; 4. Zebra strip; 5. Limiting block; 6. Mounting part; 7. Bending area; 8. Connection point; 9. Safety line group; 10. Multiple horizontal lines; 11. Multiple vertical lines; 12. Safety chip; 13. Conductive end; 14. Signal shielding film layer.
[0034] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation
[0035] The following embodiments are described to aid in understanding this application. These embodiments are not, and should not be, construed in any way as limiting the scope of protection of this application.
[0036] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as individual functional units (which may include subunits), but those skilled in the art will recognize that various components or portions thereof may be divided into individual components or may be integrated together (including integrated within a single system or component).
[0037] Furthermore, the connection between components or systems is not intended to be limited to a direct connection; on the contrary, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Additionally, other or fewer connections may be used. It should also be noted that the terms "connection," "link," or "input" should be understood to include direct connections, indirect connections via one or more intermediate devices, and wireless connections.
[0038] Example 1:
[0039] like Figure 1 The diagram shown is a schematic representation of the overall structure of Embodiment 1 of this application; as shown... Figure 2 The diagram shown is a schematic representation of the connection structure between the flexible mounting line and the safety injection-molded bracket in Embodiment 1 of this application; as shown... Figure 3 The diagram shown is an overall exploded structural schematic of Embodiment 1 of this application; as shown Figure 4 The diagram shown is a schematic diagram of the safety wiring group for a flexible installation circuit according to Embodiment 1 of this application; as shown Figure 5 The diagram shown is a schematic representation of multiple vertical lines in the flexible installation circuit of Embodiment 1 of this application; as shown... Figure 6 As shown, this is a schematic diagram of multiple sets of horizontal lines in Embodiment 1 of this application for flexible installation wiring; as Figure 7 The diagram shown is a schematic diagram of the conductive end of the flexible installation line in Embodiment 1 of this application.
[0040] A safety protection structure, characterized in that it includes a safety injection-molded bracket 1, a flexible mounting line 2, and a conductive connection component 3, wherein: the safety injection-molded bracket 1 has a mounting part 5, the mounting part 5 has a flexible mounting line 2, the side of the flexible mounting line 2 is a bending area 6, the bending area 6 is completely fitted and fixed to the mounting part 5, the inner side of the bending area 6 of the flexible mounting line 2 has two conductive ends 10, each conductive end 10 is provided with a conductive connection component 3, each conductive end 10 is electrically connected to the main circuit board of an external device through the conductive connection component 3, and the safety injection-molded bracket 1 is fixedly connected to the external device.
[0041] In some embodiments, the flexible mounting line 2 and the mounting part 5 are directly bonded by adhesive material, or the flexible mounting line 2 is integrally formed and connected to the mounting part 5 by hot melt adhesive under high temperature conditions. The integral forming connection is more preferred.
[0042] Furthermore, the bending angle of the bending area 6 is greater than or equal to 90°, forming a stable right-angle or obtuse-angle structure, which increases the physical operating space required for attackers to damage the line, forcing intrusion tools to cut in from a larger angle to attack the IC or communication signal on the flexible installation line 2, thus increasing the difficulty of cracking. 90° is the preferred angle.
[0043] In some embodiments, the connection between the bending area 6 and the main body 7 in the middle of the bending area 6 is straight or arc-shaped, with the arc shape being more preferred. Firstly, the arc-shaped design expands the contact surface between the circuit layer and the injection molded bracket, enhances the bonding strength, and prevents delamination or peeling. Secondly, it disperses external impact forces, reduces fatigue damage in the bending area, and extends the service life of the flexible circuit layer.
[0044] In some embodiments, the flexible mounting line 2 can be a PI aluminum foil line, or a PI double-layer aluminum foil line, which is processed and formed into a corresponding flexible mesh line according to the line Gerber file. The back of the mesh line is printed with a special adhesive. The mesh line is placed in the mold cavity and integrally molded by IMD injection molding. The aluminum foil flexible line is combined with the safety injection molding bracket 1. The aluminum foil layer has its own electromagnetic shielding function and the aluminum foil extensibility effectively absorbs mechanical impact to prevent the line from breaking.
[0045] In some embodiments, a signal shielding film layer 12 is also provided between the flexible mounting line 2 and the conductive connection component 3 to shield the signals of the electronic components of the flexible mounting line 2, thereby reducing the risk of hackers recording information.
[0046] The signal shielding film layer 12 is fully covered inside the flexible installation line 2 to ensure shielding without blind spots, especially providing comprehensive protection for key parts such as bending areas, preventing electromagnetic signal leakage or detection.
[0047] The material of the signal shielding film layer 12 is a thin film or coating material that can shield electromagnetic signals.
[0048] The film or coating can be made of aluminum foil, copper foil, microwave absorbing material or ferrite material.
[0049] The side of the safety injection molded bracket 1 is also provided with a guide ramp, which facilitates the corresponding connection between the safety injection molded bracket 1 and the external equipment assembly structure.
[0050] The flexible installation line 2 is fully equipped with safety line groups 9, which include multiple sets of horizontal lines 91 and multiple sets of vertical lines 92. The multiple sets of horizontal lines 91 and multiple sets of vertical lines 92 are set vertically to form a mesh safety line structure. The flexible installation line 2 is provided with through holes 93, which allow the lines on both the top and bottom sides of the mesh safety line structure to be conductive.
[0051] The spacing between the mesh security line structures is ≥3mil.
[0052] The two adjacent conductive ends 10 are located on the bottom surface near the bending area 6, and the wiring path of the conductive ends 10 crosses the entire safety line group 9, thereby improving safety.
[0053] The conductive connection component 3 includes a zebra strip 31 and a limiting block 32. Each conductive end 10 is provided with a zebra strip 31 and a limiting block 32 is provided on the side of the zebra strip 31 to constrain the position of the zebra strip 31 and at the same time ensure that the zebra strip 31 can meet the position of the pads on the main circuit board of the external device, thereby achieving precise conductivity.
[0054] The safety injection molding bracket 1 has a snap-fit structure on its side. The snap-fit structure is a male-female snap-fit structure, which facilitates the fixed connection of the safety injection molding bracket 1 with external equipment.
[0055] Example 2:
[0056] like Figure 1 The diagram shown is a schematic representation of the overall structure of Embodiment 2 of this application; as shown... Figure 2 The diagram shown is a schematic representation of the connection structure between the flexible installation line and the safety injection-molded bracket in Embodiment 2 of this application; as shown... Figure 3 The diagram shown is an overall exploded structural schematic of Embodiment 2 of this application; as shown Figure 4 The diagram shown is a schematic diagram of the safety wiring group for a flexible installation circuit according to Embodiment 2 of this application; as shown Figure 5 As shown, this is a schematic diagram of multiple sets of vertical lines in the flexible installation circuit of Embodiment 2 of this application; as Figure 6 As shown, this is a schematic diagram of multiple sets of horizontal lines in Embodiment 2 of this application for flexible installation wiring; as Figure 7 The diagram shown is a schematic diagram of the conductive end of the flexible installation line in Embodiment 2 of this application.
[0057] A safety protection structure, characterized in that it includes a safety injection-molded bracket 1, a flexible mounting line 2, and a conductive connection component 3, wherein: the safety injection-molded bracket 1 has a mounting part 5, the mounting part 5 has a flexible mounting line 2, the side of the flexible mounting line 2 is a bending area 6, the bending area 6 is completely fitted and fixed to the mounting part 5, the inner side of the bending area 6 of the flexible mounting line 2 has two conductive ends 10, each conductive end 10 is provided with a conductive connection component 3, each conductive end 10 is electrically connected to the main circuit board of an external device through the conductive connection component 3, and the safety injection-molded bracket 1 is fixedly connected to the external device.
[0058] The flexible installation line 2 and the installation part 5 are directly bonded by adhesive material, or the flexible installation line 2 is integrally formed and connected to the installation part 5 by hot melt adhesive under high temperature conditions. The integral forming connection is more preferred.
[0059] The bending angle of the bending area 6 is greater than or equal to 90°, forming a stable right angle or obtuse angle structure. This increases the physical operating space required for attackers to damage the line, forcing intrusion tools to cut in from a larger angle to attack the IC or communication signal on the flexible installation line 2, thus increasing the difficulty of cracking. 90° is the preferred angle.
[0060] The connection between the bending area 6 and the main body in the middle of the bending area 6 is either straight or arc-shaped, with the arc shape being more preferred. Firstly, the arc-shaped design expands the contact surface between the circuit layer and the injection-molded bracket, enhances the bonding strength, and prevents delamination or peeling. Secondly, it disperses external impact forces, reduces fatigue damage in the bending area, and extends the service life of the flexible circuit layer.
[0061] In some embodiments, the flexible mounting line 2 is a PI silver paste line, which is a mesh line printed with double layers of bend-resistant silver paste on a PI film. The double layers of bend-resistant silver paste make the flexible mounting line more stable and can be directly printed and molded. Specifically, the flexible line is made by printing tensile and bend-resistant silver paste on the PI film, and then processed into a corresponding flexible mesh line according to the line Gerber file. A special adhesive is printed on the back of the mesh line, and the mesh line is placed in the mold cavity for IMD injection molding. The aluminum foil flexible line is combined with the safety injection molded bracket 1.
[0062] A signal shielding film layer 12 is also provided between the flexible installation line 2 and the conductive connection component 3, which serves to shield the signals of the electronic components of the flexible installation line 2 and prevent and reduce the risk of hackers recording information.
[0063] The signal shielding film layer 12 is fully covered inside the flexible installation line 2 to ensure shielding without blind spots, especially providing comprehensive protection for key parts such as bending areas, preventing electromagnetic signal leakage or detection.
[0064] The material of the signal shielding film layer 12 is a thin film or coating material that can shield electromagnetic signals.
[0065] The film or coating can be made of aluminum foil, copper foil, microwave absorbing material or ferrite material.
[0066] The side of the safety injection molded bracket 1 is also provided with a guide ramp, which facilitates the corresponding connection between the safety injection molded bracket 1 and the external equipment assembly structure.
[0067] The flexible installation line 2 is fully equipped with safety line groups 9, which include multiple sets of horizontal lines 91 and multiple sets of vertical lines 92. The multiple sets of horizontal lines 91 and multiple sets of vertical lines 92 are set vertically to form a mesh safety line structure. The flexible installation line 2 is provided with through holes 93, which allow the lines on both the top and bottom sides of the mesh safety line structure to be conductive.
[0068] The spacing between the mesh security line structures is ≥3mil.
[0069] The two adjacent conductive ends 10 are located on the bottom surface near the bending area 6, and the wiring path of the conductive ends 10 crosses the entire safety line group 9, thereby improving safety.
[0070] The conductive connection component 3 includes a zebra strip 31 and a limiting block 32. Each conductive end 10 is provided with a zebra strip 31 and a limiting block 32 is provided on the side of the zebra strip 31 to constrain the position of the zebra strip 31 and at the same time ensure that the zebra strip 31 can meet the position of the pads on the main circuit board of the external device, thereby achieving precise conductivity.
[0071] The safety injection molding bracket 1 has a snap-fit structure on its side. The snap-fit structure is a male-female snap-fit structure, which facilitates the fixed connection of the safety injection molding bracket 1 with external equipment.
[0072] Although this application discloses several aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art. Various modifications and improvements can be made without departing from the concept of this application, and these all fall within the scope of protection of this application. The various aspects and embodiments disclosed in this application are for illustrative purposes only and are not intended to limit this application. The actual scope of protection of this application is determined by the claims.
Claims
1. A safety protection structure, characterized in that, The invention includes a safety injection molded bracket (1), a flexible mounting line (2), and a conductive connection component (3). The invention is characterized in that: the safety injection molded bracket (1) is provided with an installation part (5), the installation part (5) is provided with a flexible mounting line (2), the side of the flexible mounting line (2) is a bending area (6), the bending area (6) is completely fitted and fixed to the installation part (5), the inner side of the bending area (6) of the flexible mounting line (2) is provided with two conductive ends (10), each conductive end (10) is provided with a conductive connection component (3), each conductive end (10) is electrically connected to the main circuit board of the external device through the conductive connection component (3), and the safety injection molded bracket (1) is fixedly connected to the external device.
2. The safety protection structure as described in claim 1, characterized in that: The flexible installation line (2) is directly bonded to the installation part (5) with adhesive material, or the flexible installation line (2) is integrally formed and connected to the installation part (5) under high temperature conditions with hot melt adhesive.
3. The safety protection structure as described in claim 1, characterized in that: The bending angle of the bending area (6) is greater than or equal to (90)°.
4. The safety protection structure as described in claim 1, characterized in that: The connection point (7) between the bending area (6) and the main body in the middle of the bending area (6) is either straight or arc-shaped.
5. The safety protection structure as described in claim 1, characterized in that: The flexible installation circuit (2) can be either a PI silver paste circuit or a PI aluminum foil circuit.
6. The safety protection structure as described in claim 1, characterized in that: A signal shielding film layer (12) is also provided between the flexible installation line (2) and the conductive connection component (3).
7. The safety protection structure as described in claim 6, characterized in that: The signal shielding film layer (12) is fully covered inside the flexible mounting line (2).
8. The safety protection structure as described in claim 6, characterized in that: The material of the signal shielding film layer (12) is a thin film or coating material that can shield electromagnetic signals. The thin film or coating can be one of aluminum foil, copper foil, wave-absorbing material or ferrite material.
9. The safety protection structure as described in claim 1, characterized in that: The flexible installation line (2) is fully equipped with safety line groups (9). The installation line groups include multiple sets of horizontal lines (91) and multiple sets of vertical lines (92). The multiple sets of horizontal lines (91) and multiple sets of vertical lines (92) are set vertically to form a mesh safety line structure. The flexible installation line (2) is provided with through holes (93). The through holes (93) allow the lines on both the top and bottom sides of the mesh safety line structure to be conductive.
10. The safety protection structure as described in claim 1, characterized in that: The conductive connection assembly (3) includes a zebra strip (31) and a limiting block (32). Each conductive end (10) is provided with a zebra strip (31) and a limiting block (32) is provided on the side of the zebra strip (31).