POS machine anti-disassembly structure based on conductive sponge
By using a combination of conductive sponge and breakpoints of rubber strips, brackets, and circuit boards in the POS machine, the conductive sponge is turned on to the breakpoint during crimping, and the circuit connection is disconnected when disassembled, which solves the problems of large space occupation and high positive pressure in existing POS machines, and achieves the effects of data protection and space saving.
Patent Information
- Application Number
- CN202420961759.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In existing POS machines, micro switches take up a lot of space, and the pot piece affects the rebound life under normal pressure. Small-size crimp stroke is easy to be misinformed, large-size occupies a large area, and large-size positive pressure of conductive carbon particles affects the stability of parts.
The anti-tamping structure based on conductive sponge is adopted. Through the combination of the conductive sponge and the breakpoints of the rubber strip, bracket, and circuit board, the conductive sponge is turned on to the breakpoint during crimping, and the circuit connection is disconnected when disassembled, triggering the anti-tamping protection mechanism to automatically clear sensitive data.
It realizes the small positive pressure and good rebound in small space scenarios, protects the POS machine data from malicious disassembly or tampering, saves design space, and is suitable for anti-tamping scenarios of fragile parts.
Smart Images
Figure CN222690197U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of POS machines, in particular to a POS machine anti-disassembly structure based on conductive sponge. Background Art
[0002] POS is a device specially used for daily business settlement of merchants. Through connection with computer system, it provides a series of functions including commodity sales, cashier management, inventory management, financial management, etc. The emergence of POS has greatly simplified many tedious links in the daily operation of merchants and improved work efficiency.
[0003] However, the disadvantage of the micro switch in the POS machine in the existing technology is that it takes up a lot of space; another disadvantage of the pot piece is that the normal pressure state will affect the rebound life. The small size of the crimping stroke is too small, which is easy to misfire the mechanism, while the large size occupies a large area and requires more space. The conductive carbon particles have a large positive pressure, and the large rebound stress will lift up the upper and lower parts, which has a certain impact on the stability of the upper and lower parts. Utility Model Content
[0004] The purpose of the utility model is to provide a POS machine anti-disassembly structure based on conductive sponge to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A POS machine anti-disassembly structure based on conductive sponge comprises a POS machine body, a protective component for protecting POS data is arranged inside the POS machine body, the protective component comprises an anti-disassembly plate arranged outside the POS machine body, a conductive mechanism is arranged on the inner wall of the anti-disassembly plate, the conductive mechanism comprises a rubber strip and conductive sponge, a bracket is arranged at the other end of the conductive mechanism, a through groove is arranged inside the bracket, a circuit board is arranged on the side of the bracket away from the conductive mechanism, a first breakpoint and a second breakpoint are arranged on the inner wall of the circuit board, and a ground wire is also arranged on the inner wall of the circuit board.
[0007] As a preferred solution of the utility model, the anti-disassembly plate is installed on the outside of the POS machine, and the two ends of the rubber strip are respectively bonded and connected to the inner wall of the anti-disassembly plate and the conductive sponge.
[0008] As a preferred solution of the utility model, the position of the conductive mechanism on the inner wall of the anti-disassembly plate corresponds to the positions of the through slot of the bracket and the two breakpoints on the circuit board.
[0009] As a preferred solution of the utility model, the thickness of the conductive mechanism is greater than the height of the through slot in the bracket, so that the conductive sponge in the conductive mechanism can extend through the through slot to the circuit board and abut at the first breakpoint and the second breakpoint.
[0010] As a preferred solution of the utility model, the conductive sponge covers the first breakpoint and the second breakpoint and is electrically connected thereto. When the anti-disassembly plate is removed, the conductive sponge is driven by the rubber strip to detach from the circuit board and disconnect the circuit connection.
[0011] As a preferred solution of the utility model, the ground wire on the circuit board can be added or not as needed, and the conductive sponge is in a compressed state when it abuts against the circuit board, and the rebound stress always exists and continues.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: in response to the problems raised in the background technology, the present application adopts a protective component, which uses an omnidirectional conductive sponge as the main material, covers one side with double-sided adhesive, and is processed and cut into a required shape. The good conductivity and good compression resilience of the material are used to cooperate with the circuit breakpoint to make the circuit switch function by contact and disconnection. The omnidirectional conductive sponge itself has conductive properties, soft materials, good resilience, and small positive pressure. It is suitable for use as a switch conductor in a small space and a scene where the positive pressure of the parts needs to be weak;
[0013] Furthermore, with its switch function, combined with the hardware and software's judgment logic on circuit on-off, it can identify situations where the device has been maliciously disassembled or uncovered, triggering the device to activate the anti-dismantling protection mechanism, delete or clean up important and sensitive data, and prevent data from being modified, tampered with, replaced or copied, thereby achieving the purpose of protection.
[0014] The utility model uses omnidirectional conductive sponge for connection, occupies little space, saves design space, has soft material, good resilience, and stable performance. It is suitable for scenarios requiring small positive pressure and will not cause force to the upper and lower parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 Explosion diagram of the protective component of the utility model
[0016] Figure 2 This is a side sectional view of the protective component of the utility model;
[0017] Figure 3 This is the breakpoint distribution diagram of the circuit board of the utility model.
[0018] In the figure: 1, anti-disassembly plate; 2, conductive mechanism; 21, rubber strip; 22, conductive sponge; 3, bracket; 31, through slot; 4, circuit board; 41, first breakpoint; 42, second breakpoint; 43, ground wire. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.
[0020] Example
[0021] See also Figure 1-3 The utility model provides a technical solution: a POS machine anti-disassembly structure based on conductive sponge, comprising a POS machine body, a protective component for protecting POS data is arranged inside the POS machine body, the protective component comprises an anti-disassembly plate 1 arranged outside the POS machine body, anti-disassembly parts, a conductive mechanism 2 is arranged on the inner wall of the anti-disassembly plate 1, the conductive mechanism 2 comprises a rubber strip 21 and a conductive sponge 22, the rubber strip 21 can be adhered to the inner wall of the anti-disassembly plate 1, and the other side is adhered to the conductive sponge 22, a bracket 3 is arranged at the other end of the conductive mechanism 2, a through slot 31 is arranged inside the bracket 3, a circuit board 4 is arranged on the side of the bracket 3 away from the conductive mechanism 2, a first breakpoint 41 and a second breakpoint 42 are arranged on the inner wall of the circuit board 4, and a ground wire 43 is also arranged on the inner wall of the circuit board 4. The anti-disassembly plate 1 is superimposed with the bracket 3 and the circuit board 4, wherein the conductive mechanism 2 is in the through slot 31 of the bracket 3, and the conductive sponge 22 penetrates the through slot 31 and extends to the circuit board 4 to cover the first breakpoint 41 and the second breakpoint 42, so as to ensure that it is connected with the two breakpoints during crimping. When the anti-disassembly plate 1 is removed or lifted, the conductive sponge 22 is separated from the two breakpoints on the circuit board 4. At this time, the circuit in the breakpoint is disconnected, which means that the anti-disassembly plate 1 is maliciously disassembled. The hardware and software activate the anti-disassembly mechanism and automatically clear the sensitive data in the device to achieve the protection purpose. The conductive sponge 22 is always in a compressed state, and the rebound stress always exists and continues; when the entire device is vibrating or falling, the bracket 3 and the through slot 31 shake to change its height, and the thickness of the conductive sponge 22 changes synchronously, and the space of the through slot 31 changes synchronously, so that the overall thickness of the conductive sponge 22 will be consistent with the height of the through slot 31. Achieve real-time connection of the breakpoints of the circuit board 4 without interruption.
[0022] The conductive sponge 22 is soft and has a small positive pressure, that is, a small rebound force. For the parts above and below it, the feedback force is within 1N, which is very small. Even if the stress is applied for a long time, it will not affect the working state and performance of the anti-disassembly plate 1 and the circuit board 4.
[0023] This solution saves design space, is simple and easy to assemble, has a soft material, small positive pressure, and good resilience. It is suitable for anti-dismantling scenarios of fragile parts, such as display screens, touch screens or LENS, and has higher reliability in situations such as vibration and falling.
[0024] In this embodiment, all electrical components are controlled by conventional controllers.
[0025] For example, please refer to Figure 1-3The anti-disassembly plate 1 is installed on the outside of the POS machine, and the two ends of the rubber strip 21 are respectively bonded to the inner wall of the anti-disassembly plate 1 and the conductive sponge 22. The position of the conductive mechanism 2 on the inner wall of the anti-disassembly plate 1 corresponds to the positions of the through slot 31 of the bracket 3 and the two breakpoints on the circuit board 4. The thickness of the conductive mechanism 2 is greater than the height of the through slot 31 in the bracket 3, so that the conductive sponge 22 in the conductive mechanism 2 can pass through the through slot 31 and extend to the circuit board 4 and abut at the first breakpoint 41 and the second breakpoint 42. The conductive sponge 22 covers the first breakpoint 41 and the second breakpoint 42 and is electrically connected to them. When the anti-disassembly plate 1 is removed, the conductive sponge 22 drives it to detach from the circuit board 4 through the rubber strip 21 and disconnects the circuit connection. The ground wire 43 on the circuit board 4 can be added or not as needed. When the conductive sponge 22 abuts against the circuit board 4, it is in a compressed state, and the rebound stress always exists and continues. When the anti-disassembly plate 1 on the outside of the POS machine is disassembled and lifted up during use, the conductive sponge 22 is linked to the anti-disassembly plate 1 through the rubber strip 21, so that it moves and contracts and breaks away from the contact with the circuit board 4, thereby disconnecting the connection of the breakpoint of the circuit board 4. When the PLC controller in the POS machine detects that the circuit board 4 is disconnected, the protection function is triggered, and the sensitive data in the device is automatically cleared to achieve the protection purpose.
[0026] The working process of the utility model: when the anti-disassembly plate 1 outside the POS machine is disassembled and tilted, the conductive sponge 22 is linked with the anti-disassembly plate 1 through the rubber strip 21, so that it moves and shrinks, and breaks contact with the circuit board 4, thereby disconnecting the connection of the circuit board 4 breakpoint. When the PLC controller in the POS machine detects that the circuit board 4 is disconnected, the protection function is triggered, and the sensitive data in the device is automatically cleared to achieve the protection purpose. The utility model uses omnidirectional conductive sponge for connection, which takes up little space, saves design space, is soft in material, has good resilience, and has stable performance. It is suitable for scenes requiring small positive pressure and will not cause force to the upper and lower parts.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A POS machine anti-disassembly structure based on conductive sponge, comprising a POS machine body, wherein a protective component for protecting POS data is arranged inside the POS machine body, and the characteristics are: The protection component comprises an anti-disassembly plate (1) arranged outside a POS machine body, a conductive mechanism (2) is arranged on the inner wall of the anti-disassembly plate (1), the conductive mechanism (2) comprises a rubber strip (21) and a conductive sponge (22), a bracket (3) is arranged at the other end of the conductive mechanism (2), a through groove (31) is arranged inside the bracket (3), a circuit board (4) is arranged on the side of the bracket (3) away from the conductive mechanism (2), a first breakpoint (41) and a second breakpoint (42) are arranged on the inner wall of the circuit board (4), and a ground wire (43) is also arranged on the inner wall of the circuit board (4).
2. According to claim 1, a POS machine anti-disassembly structure based on conductive sponge is characterized by: The anti-disassembly plate (1) is installed outside the POS machine, and the two ends of the rubber strip (21) are respectively bonded and connected to the inner wall of the anti-disassembly plate (1) and the conductive sponge (22).
3. The POS machine anti-disassembly structure based on conductive sponge according to claim 1, characterized in that: The position of the conductive mechanism (2) on the inner wall of the anti-disassembly plate (1) corresponds to the positions of the through slot (31) of the bracket (3) and the two breakpoints on the circuit board (4).
4. The POS machine anti-disassembly structure based on conductive sponge according to claim 1, characterized in that: The thickness of the conductive mechanism (2) is greater than the height of the through slot (31) in the bracket (3), so that the conductive sponge (22) in the conductive mechanism (2) can pass through the through slot (31) to extend to the circuit board (4) and abut at the first breakpoint (41) and the second breakpoint (42).
5. The POS machine anti-disassembly structure based on conductive sponge according to claim 1, characterized in that: The conductive sponge (22) covers the first breakpoint (41) and the second breakpoint (42) and is electrically connected thereto; when the anti-disassembly plate (1) is removed, the conductive sponge (22) drives it to detach from the circuit board (4) through the rubber strip (21) and disconnect the circuit connection.
6. The POS machine anti-disassembly structure based on conductive sponge according to claim 1, characterized in that: The ground wire (43) on the circuit board (4) may be added or not added as required, and the conductive sponge (22) is in a compressed state when it abuts against the circuit board (4), and the rebound stress always exists and persists.