Anti-disassembly safety connection structure and POS machine

Abstract

The present application is applicable to the technical field of mobile payment devices, and provides an anti-disassembly safety connection structure and a POS machine, wherein the anti-disassembly safety connection structure includes a flexible circuit board, a first connection terminal, a second connection terminal and a first auxiliary terminal, the flexible circuit board includes a first main body, a second main body and a first folding part, the first main body and the second main body are arranged oppositely along a first direction, the first connection terminal is arranged on the first main body, the second connection terminal is arranged on the second main body, the first end of the first folding part is connected to the first main body, the second end of the first folding part and the first main body are arranged oppositely and spaced, the first auxiliary terminal is arranged between the first folding part and the first main body, and the first connection terminal and the second connection terminal are electrically connected to the first auxiliary terminal respectively. The structure of the first auxiliary terminal and the first folding part of the present application is relatively simple, which is convenient for the installation and setting of the first auxiliary terminal, and improves the connection safety of the auxiliary terminal.

Description

Technical Field

[0001] The present application belongs to the technical field of mobile payment devices, and in particular, relates to an anti-disassembly safety connection structure and a POS machine. Background Art

[0002] At present, in order to prevent the leakage of sensitive information, a safe area can be built inside the financial terminal where it is difficult to obtain sensitive information through destructive means such as punching and blow welding. Sensitive components and sensitive signal routing within the safe area can be protected.

[0003] However, it is difficult to effectively protect components outside the safe area. In the related art, one solution is to set the connection terminals of the components in the safe area to ensure the safety of the connection terminals, but this will make the structure between the components and the connection terminals complicated, making it difficult to assemble, and the usage scenarios will also be limited. Another solution is to set the connection terminals outside the safe area to facilitate the assembly of the connection terminals, but this is difficult to ensure the safety of the connection terminals. Therefore, how to balance the safety of the connection terminals and the convenience of assembly has become an urgent problem to be solved. Summary of the invention

[0004] In view of this, the embodiments of the present application provide an anti-disassembly safety connection structure and a POS terminal to solve the current problem of difficulty in balancing the safety and assembly convenience of the connection terminals.

[0005] A first aspect of an embodiment of the present application provides an anti-disassembly safety connection structure, including: a flexible circuit board, a first connecting terminal, a second connecting terminal and a first auxiliary terminal, the flexible circuit board includes a first main body, a second main body and a first folding portion, the first main body and the second main body are arranged opposite to each other along a first direction, the first connecting terminal is arranged on the first main body, the second connecting terminal is arranged on the second main body, the first end of the first folding portion is connected to the first main body, the second end of the first folding portion is opposite to the first main body and is arranged at an interval, the first auxiliary terminal is arranged between the first folding portion and the first main body, and the first connecting terminal and the second connecting terminal are electrically connected to the first auxiliary terminal respectively.

[0006] In one embodiment, the first auxiliary terminal includes a first sub-auxiliary part and a second sub-auxiliary part, the first sub-auxiliary part is connected to the first main body part, the second sub-auxiliary part is connected to the second end of the first folding part, and the first sub-auxiliary part and the second sub-auxiliary part are detachably connected.

[0007] In one embodiment, the first connection terminal and the second connection terminal are electrically connected to the second sub-auxiliary portion, respectively.

[0008] In one embodiment, the flexible circuit board includes a first surface and a second surface arranged opposite to each other along its thickness direction; the first connecting terminal and the second sub-auxiliary part are both located on the first surface, and the flexible circuit board also includes a first routing line located on the first surface, one end of the first routing line is electrically connected to the first connecting terminal, and the other end of the first routing line is electrically connected to the second sub-auxiliary part; the second connecting terminal is located on the second surface, a first via hole corresponding to the second connecting terminal is provided on the second main body part, a second via hole corresponding to the second sub-auxiliary part is provided on the first folding part, and a second routing line is provided between the first surface and the second surface in the flexible circuit board, one end of the second routing line is electrically connected to the second connecting terminal via the first via hole, and the other end of the second routing line is electrically connected to the second sub-auxiliary part via the second via hole.

[0009] In one embodiment, the anti-disassembly safety connection structure also includes a first reinforcement plate, which is located on the second surface at a position corresponding to the first connecting terminal; the anti-disassembly safety connection structure also includes a second reinforcement plate, which is located on the second surface at a position corresponding to the second sub-auxiliary part; the anti-disassembly safety connection structure also includes a third reinforcement plate, which is located on the first surface at a position corresponding to the second connecting terminal.

[0010] In one embodiment, an orthographic projection of the first folding portion on the surface of the first main body portion completely falls within the surface of the first main body portion.

[0011] In one embodiment, the flexible circuit board further includes a connecting portion and a notch portion, wherein the connecting portion and the notch portion are both located between the first main body portion and the second main body portion, and two ends of the connecting portion are respectively connected to the first main body portion and the second main body portion.

[0012] In one embodiment, the first end of the first folded portion is connected to a side of the first main body portion close to the notch portion, and a length dimension of the first folded portion in the first direction is smaller than a length dimension of the notch portion in the first direction.

[0013] In one embodiment, the anti-disassembly safety connection structure also includes a second auxiliary terminal, and the flexible circuit board also includes a second folding portion, the first end of the second folding portion is connected to the second main body portion, the second end of the second folding portion and the second main body portion are opposite to each other and spaced apart, the second auxiliary terminal is arranged between the second folding portion and the second main body portion, and the first connecting terminal and the second connecting terminal are electrically connected to the second auxiliary terminal respectively.

[0014] The second aspect of an embodiment of the present application provides a POS machine, comprising: a first circuit board, a second circuit board and an anti-disassembly safety connection structure as described in the first aspect, wherein the first circuit board is electrically connected to the first connection terminal, and the second circuit board is electrically connected to the second connection terminal.

[0015] The anti-disassembly safety connection structure and POS machine provided in the embodiments of the present application realize electrical connection between the first connecting terminal and the second connecting terminal by means of the first auxiliary terminal, by arranging the first auxiliary terminal between the first folding part and the first main part of the flexible circuit board. In this way, the structure of the first auxiliary terminal and the first folding part is relatively simple, which is convenient for the installation and setting of the first auxiliary terminal. Moreover, since the first auxiliary terminal is arranged between the first main part and the first folding part of the flexible circuit board, the flexible circuit board can play a certain protective role on the first auxiliary terminal, thereby improving the connection safety of the auxiliary terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the anti-disassembly safety connection structure provided in an embodiment of the present application;

[0018] Figure 2 It is a structural schematic diagram of the anti-disassembly safety connection structure provided in an embodiment of the present application at one viewing angle;

[0019] Figure 3 It is a schematic structural diagram of a first folded portion of a flexible circuit board in an anti-disassembly safety connection structure provided in an embodiment of the present application after unfolding;

[0020] Figure 4 It is a schematic diagram of the connection structure between the anti-disassembly safety connection structure and the first circuit board and the second circuit board in the POS machine provided in an embodiment of the present application;

[0021] Figure 5 It is a schematic diagram of the circuit connection between the anti-disassembly safety connection structure and the first circuit board and the second circuit board in the POS machine provided in the embodiment of the present application.

[0022] Figure Number:

[0023] 10. Anti-disassembly safety connection structure;

[0024] 100, flexible circuit board, 110, first main body, 120, second main body, 130, first folding portion, 140, connecting portion, 150, notch portion, 160, first surface, 170, second surface;

[0025] 200. a first connecting terminal;

[0026] 300. second connecting terminal;

[0027] 400, first auxiliary terminal, 410, first sub-auxiliary portion, 420, second sub-auxiliary portion;

[0028] 510, first routing, 520, second routing;

[0029] 610, first reinforcement plate, 620, second reinforcement plate, 630, third reinforcement plate;

[0030] 20. A first circuit board;

[0031] 30. A second circuit board;

[0032] y, first direction. DETAILED DESCRIPTION

[0033] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0034] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0038] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" means two or more.

[0039] See also Figures 1 to 3 As shown, an embodiment of the present application provides an anti-disassembly safety connection structure 10 , which includes: a flexible circuit board 100 , a first connection terminal 200 , a second connection terminal 300 and a first auxiliary terminal 400 .

[0040] The flexible circuit board 100 includes a first main body 110, a second main body 120 and a first folding part 130, and the first main body 110 and the second main body 120 are arranged relatively along the first direction y. The flexible circuit board 100 (FPC) is referred to as a "soft board". It is a printed circuit board made of a flexible insulating substrate, such as polyimide or polyester film, etc. It has many advantages that rigid printed circuit boards do not have. It can be bent, rolled, and folded freely, thereby greatly reducing the size of electronic products. The flexible circuit board 100 is divided into single-sided, double-sided and multi-layer boards. The number of layers, surface shape, size, etc. of the flexible circuit board 100 can be flexibly adjusted according to different usage requirements in different usage scenarios, and are not specifically limited here.

[0041] The first main body 110, the second main body 120 and the first folding portion 130 are artificially divided areas on the flexible circuit board 100 according to their different functions. The shape and size of each area are not limited, and there may not be obvious boundaries between different areas. Among them, the first main body 110 and the second main body 120 are used to install connecting terminals to realize the function of connecting with other components, and the first folding portion 130 is used to realize the folding function.

[0042] The first main body 110 and the second main body 120 are arranged opposite to each other along the first direction y, that is, the first main body 110 and the second main body 120 are respectively located on two opposite sides of the first direction y, and the first direction y is a direction parallel to the surface of the flexible circuit board 100. Figure 2 and Figure 3 As shown in , the first direction y is the up-down direction in the figure, and the orientation of the first folding portion 130 is not limited.

[0043] The first connection terminal 200 is provided at the first main body 110, and the second connection terminal 300 is provided at the second main body 120. The connection terminal is a kind of accessory product used to realize electrical connection. According to its structure, the connection terminal can be divided into plug-in connection terminal, fence connection terminal, spring connection terminal, rail connection terminal, etc. The specific type of the first connection terminal 200 and the second connection terminal 300 is not limited. By respectively providing the first connection terminal 200 and the second connection terminal 300 at different positions of the flexible circuit board 100, the electrical connection of the electronic components located on both sides of the flexible circuit board 100 can be realized.

[0044] The first end of the first folding portion 130 is connected to the first main body portion 110, and the second end of the first folding portion 130 is opposite to the first main body portion 110 and is spaced apart, that is, the first folding portion 130 is bent from a certain point on the flexible circuit board 100 to one side of the first main body portion 110, and the first auxiliary terminal 400 is arranged between the first folding portion 130 and the first main body portion 110, and the first connecting terminal 200 and the second connecting terminal 300 are respectively electrically connected to the first auxiliary terminal 400, and the first auxiliary terminal 400 is used to realize the function of auxiliary switching.

[0045] By arranging the first auxiliary terminal 400 between the first folding portion 130 and the first main body portion 110, the first auxiliary terminal 400 can be clamped within the flexible circuit board 100, and the first auxiliary terminal 400 can be isolated from the external environment, which can not only protect it from external signal interference, but more importantly, also improve the safety performance of the first auxiliary terminal 400. The electrical connection achieved with the help of the first auxiliary terminal 400 has higher connection security and sensitive information is not easily leaked.

[0046] The beneficial effect of this embodiment is that the anti-disassembly safety connection structure 10 provided in the embodiment of the present application realizes the electrical connection between the first connection terminal 200 and the second connection terminal 300 by means of the first auxiliary terminal 400 by arranging the first auxiliary terminal 400 between the first folding portion 130 and the first main body portion 110 of the flexible circuit board 100. In this way, the structure of the first auxiliary terminal 400 and the first folding portion 130 is relatively simple, which is convenient for the installation and setting of the first auxiliary terminal 400. In addition, since the first auxiliary terminal 400 is arranged between the first main body portion 110 and the first folding portion 130 of the flexible circuit board 100, the flexible circuit board 100 can play a certain protective role on the first auxiliary terminal 400, thereby improving the connection safety of the auxiliary terminal.

[0047] The first auxiliary terminal 400 in the embodiment of the present application may be an integrated structure or a split structure. Figure 3 As a preferred implementation of this embodiment, the first auxiliary terminal 400 includes a first sub-auxiliary portion 410 and a second sub-auxiliary portion 420. The first sub-auxiliary portion 410 is connected to the first main body 110, and the second sub-auxiliary portion 420 is connected to the second end of the first folding portion 130. The first sub-auxiliary portion 410 and the second sub-auxiliary portion 420 are detachably connected. That is, during the installation and connection process of the anti-disassembly safety connection structure 10, when the first folding portion 130 of the flexible circuit board 100 is bent toward the first main body 110, so that the first sub-auxiliary portion 410 and the second sub-auxiliary portion 420 can be connected to each other, the first sub-auxiliary portion 410 and the second sub-auxiliary portion 420 are connected to form a complete first auxiliary terminal 400.

[0048] During the application of the anti-disassembly safety connection structure 10 of the embodiment of the present application, it can take into account the safety of the connection terminal and the convenience of assembly, especially when at least one side of the flexible circuit board 100 is in the non-safe zone. The following is an example of a scenario in which the first main body 110 of the flexible circuit board 100 is in the non-safe zone and the second main body 120 is in the safe zone. At this time, the first connection terminal 200 of the first main body 110 is connected to an external component. Although the first sub-auxiliary part 410 connected to the first main body 110 in the first auxiliary terminal 400 is located in the non-safe zone, the second sub-auxiliary part 420 in the first auxiliary terminal 400 has the first sub-auxiliary part 410 and external components on both sides, which can block and protect the second sub-auxiliary part 420. Therefore, there will be no leakage of sensitive information at the position of the second sub-auxiliary part 420, and the first connection terminal 200 and the second connection terminal 300 can be electrically connected to the second sub-auxiliary part 420 respectively, ensuring the safety of their connection.

[0049] As a preferred embodiment, the flexible circuit board 100 includes a first surface 160 and a second surface 170 which are arranged opposite to each other along its thickness direction; the first connection terminal 200 and the second sub-auxiliary portion 420 are both located on the first surface 160, and the flexible circuit board 100 also includes a first trace 510 located on the first surface 160, one end of the first trace 510 is electrically connected to the first connection terminal 200, and the other end of the first trace 510 is electrically connected to the second sub-auxiliary portion 420, that is, since the first connection terminal 200 and the second sub-auxiliary portion 420 are located on the same side of the flexible circuit board 100, the two are electrically connected via the first trace 510 on the first surface 160.

[0050] The second connection terminal 300 is located on the second surface 170, a first via hole corresponding to the second connection terminal 300 is provided on the second main body 120, a second via hole corresponding to the second sub-auxiliary portion 420 is provided on the first folding portion 130, and a second trace 520 is provided between the first surface 160 and the second surface 170 in the flexible circuit board 100, one end of the second trace 520 is electrically connected to the second connection terminal 300 via the first via hole, and the other end of the second trace 520 is electrically connected to the second sub-auxiliary portion 420 via the second via hole. At this time, since the second connection terminal 300 and the second sub-auxiliary portion 420 are respectively located on different sides of the flexible circuit board 100, the second trace 520 extends to different surfaces of the flexible circuit board 100 through the first via hole and the second via hole at different positions to respectively connect the second connection terminal 300 and the second sub-auxiliary portion 420.

[0051] Further, in order to enhance the structural strength of the flexible circuit board 100 at the connection, please refer to Figure 4 In one embodiment, the anti-disassembly safety connection structure 10 further includes a first reinforcement plate 610, which is located on the second surface 170 at a position corresponding to the first connection terminal 200; the anti-disassembly safety connection structure 10 further includes a second reinforcement plate 620, which is located on the second surface 170 at a position corresponding to the second sub-auxiliary portion 420; the anti-disassembly safety connection structure 10 further includes a third reinforcement plate 630, which is located on the first surface 160 at a position corresponding to the second connection terminal 300. The first reinforcement plate 610, the second reinforcement plate 620 and the third reinforcement plate 630 can all be made of metal materials, such as steel, to improve the physical structural strength at their locations and enhance the durability of the anti-disassembly safety connection structure 10.

[0052] As a preferred embodiment, in order to facilitate the arrangement and installation of the first folding portion 130, the orthographic projection of the first folding portion 130 on the surface of the first main body portion 110 completely falls within the surface of the first main body portion 110, that is, the cross-sectional size of the first folding portion 130 is relatively small, while the cross-sectional size of the first main body portion 110 is relatively large, so that the first folding portion 130 can be completely accommodated by the first main body portion 110.

[0053] Furthermore, in one embodiment, the flexible circuit board 100 further includes a connection portion 140 and a notch portion 150, both of which are located between the first body portion 110 and the second body portion 120, and both ends of the connection portion 140 are respectively connected to the first body portion 110 and the second body portion 120. The first body portion 110 and the second body portion 120 are connected by means of the connection portion 140. In order to reduce the material occupation and facilitate the installation of the connection portion 140, the size of the connection portion 140 can be appropriately reduced to leave a certain gap on one side thereof to form the notch portion 150, and the shape and specific size of the notch portion 150 are not limited.

[0054] The position of the first folding portion 130 on the flexible circuit board 100 is not limited. In order to reduce the overall size of the flexible circuit board 100, as a preferred implementation of this embodiment, the first end of the first folding portion 130 is connected to the side of the first main body 110 close to the notch 150, and the length of the first folding portion 130 in the first direction y is smaller than the length of the notch 150 in the first direction y. Figure 3 As shown, when the first folding portion 130 is unfolded relative to the first main body portion 110, the first folding portion 130 does not fill the notch portion 150, so that there is still a certain gap between the connecting portion 140 and the first folding portion 130, thereby facilitating the folding and unfolding of the first folding portion 130.

[0055] In the above embodiment, the first main body 110 of the flexible circuit board 100 is in the non-safe area, and the second main body 120 is in the safe area. In other embodiments, when the second main body 120 is also in the non-safe area, the anti-disassembly safety connection structure 10 also includes a second auxiliary terminal, the flexible circuit board 100 also includes a second folding part, the first end of the second folding part is connected to the second main body 120, the second end of the second folding part and the second main body 120 are opposite to each other and spaced, the second auxiliary terminal is arranged between the second folding part and the second main body 120, and the first connection terminal 200 and the second connection terminal 300 are respectively electrically connected to the second auxiliary terminal. At this time, similar to the above embodiment, by arranging the second auxiliary terminal between the second folding part and the second main body 120, the second auxiliary terminal can be clamped in the flexible circuit board 100, and the second auxiliary terminal can be isolated from the external environment, which can not only prevent it from being interfered by external signals, but more importantly, it also improves the use safety performance of the second auxiliary terminal, and the connection safety of the electrical connection achieved by the second auxiliary terminal is higher, and sensitive information is not easy to leak.

[0056] According to the same inventive concept, Figure 4 and Figure 5 As shown, an embodiment of the present application further provides a POS machine, which includes: a first circuit board 20, a second circuit board 30 and an anti-disassembly safety connection structure 10 as in any one of the above embodiments, the first circuit board 20 is electrically connected to the first connection terminal 200, and the second circuit board 30 is electrically connected to the second connection terminal 300.

[0057] The POS machine provided in the embodiment of the present application realizes electrical connection between the first connecting terminal 200 and the second connecting terminal 300 by means of the first auxiliary terminal 400 by setting the first auxiliary terminal 400 between the first folding portion 130 and the first main body portion 110 of the flexible circuit board 100. In this way, the structure of the first auxiliary terminal 400 and the first folding portion 130 is relatively simple, which facilitates the installation and setting of the first auxiliary terminal 400. In addition, since the first auxiliary terminal 400 is set between the first main body portion 110 and the first folding portion 130 of the flexible circuit board 100, the flexible circuit board 100 can play a certain protective role on the first auxiliary terminal 400, thereby improving the connection safety of the auxiliary terminal.

[0058] Security mechanisms can also be set up in POS devices. When the sensors inside the controller detect external interference, an interrupt or reset will be generated and all security-related sensitive data will be cleared, and the machine will be locked. The sensor can be configured as an input port with a fixed level. When the level changes, it indicates that an attack has occurred and the machine is triggered and locked. It can also be configured so that the output port and the input port form a loop. The output port sends random numbers and the input port receives them. When the data broadcast is different from the received data, it indicates that an attack has occurred and the machine is triggered and locked. The configured signal is usually called a tamper signal. The tamper signal on the security controller end consists of a set of loop signals composed of output and input pins, such as P1-N1, P2-N2, etc. When the device detects an abnormal tamper loop level, it will enter the trigger state.

[0059] The first circuit board 20 and the second circuit board 30 are electrically connected via an anti-disassembly safety connection structure 10. Tamper signals are provided on the first connection terminal 200, the second connection terminal 300 and the first auxiliary terminal 400. The tamper signals are wound on the flexible circuit board 100 to protect sensitive signals on the flexible circuit board 100, and prevent the first connection terminal 200 from being separated from the first circuit board 20, the second connection terminal 300 from being separated from the second circuit board 30, and the first sub-auxiliary portion 410 and the second sub-auxiliary portion 420 in the first auxiliary terminal 400 from being separated.

[0060] When the first connection terminal 200 is located in the non-safe area, the security sensitive signal needs to be routed in the middle layer of the flexible circuit board 100, and the upper and lower layers are covered by the tamper signal line. After the first sub-auxiliary part 410 and the second sub-auxiliary part 420 are assembled, an overlapping safety area is formed, which is located on one side of the first connection terminal 200. This area can be used for sensitive signal punching and layer changing. The punching safety area is the area where the second sub-auxiliary part 420 is located. On the second surface 170 of the flexible circuit board 100, the sensitive signal via is covered by the flexible circuit board 100 in the area of ​​the first sub-auxiliary part 410, and the first sub-auxiliary part 410 area is provided with a return line composed of tamper signals.

[0061] like Figure 5As shown, the outer circle connecting line represents the P1-N1 loop, and the inner circle connecting line represents the P2-N2 loop. After the first sub-auxiliary part 410 and the second sub-auxiliary part 420 are assembled, the electrical connection of the P1 signal and the P2 signal is realized respectively. The Tamper signal P1 starts from the safety controller, passes through the second circuit board 30 to the second connection terminal 300, is electrically connected to the flexible circuit board 100 through the second connection terminal 300, and then is routed to the second sub-auxiliary part 420, and then starts from the first sub-auxiliary part 410, is routed to the first connection terminal 200, is electrically connected to the first circuit board 20 through the first connection terminal 200, and then returns to the first connection terminal 200 after being routed on the first circuit board 20, is electrically connected to the flexible circuit board 100 through the first connection terminal 200, and then is routed to the second connection terminal 300, and returns to the second circuit board 30 and the N1 end of the safety controller through the second connection terminal 300.

[0062] The tamper signal P2 starts from the safety controller, passes through the second circuit board 30, is routed to the second connection terminal 300, is electrically connected to the flexible circuit board 100 through the second connection terminal 300, and then is routed to the second sub-auxiliary part 420, and then starts from the first sub-auxiliary part 410, is routed to the first connection terminal 200, is electrically connected to the first circuit board 20 through the first connection terminal 200, and after being routed on the first circuit board 20, returns to the first connection terminal 200, is electrically connected to the flexible circuit board 100 through the first connection terminal 200, and then is routed to the second connection terminal 300, and returns to the second circuit board 30 and the N2 terminal of the safety controller through the second connection terminal 300.

[0063] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A disassembly-proof safety connection structure, characterized in that: include: A flexible circuit board (100), a first connecting terminal (200), a second connecting terminal (300) and a first auxiliary terminal (400), wherein the flexible circuit board (100) comprises a first main body (110), a second main body (120) and a first folding portion (130), wherein the first main body (110) and the second main body (120) are arranged opposite to each other along a first direction, the first connecting terminal (200) is arranged on the first main body (110), the second connecting terminal (300) is arranged on the second main body (120), a first end of the first folding portion (130) is connected to the first main body (110), a second end of the first folding portion (130) and the first main body (110) are arranged opposite to each other and spaced apart, the first auxiliary terminal (400) is arranged between the first folding portion (130) and the first main body (110), and the first connecting terminal (200) and the second connecting terminal (300) are respectively electrically connected to the first auxiliary terminal (400).

2. The anti-disassembly safety connection structure according to claim 1, characterized in that: The first auxiliary terminal (400) includes a first sub-auxiliary part (410) and a second sub-auxiliary part (420), the first sub-auxiliary part (410) is connected to the first main body part (110), the second sub-auxiliary part (420) is connected to the second end of the first folding part (130), and the first sub-auxiliary part (410) and the second sub-auxiliary part (420) are detachably connected.

3. The anti-disassembly safety connection structure according to claim 2, characterized in that: The first connection terminal (200) and the second connection terminal (300) are electrically connected to the second sub-auxiliary part (420), respectively.

4. The anti-disassembly safety connection structure according to claim 3, characterized in that: The flexible circuit board (100) comprises a first surface (160) and a second surface (170) which are arranged opposite to each other along the thickness direction of the flexible circuit board; The first connection terminal (200) and the second auxiliary sub-portion (420) are both located on the first surface (160), and the flexible circuit board (100) further comprises a first wiring (510) located on the first surface (160), one end of the first wiring (510) is electrically connected to the first connection terminal (200), and the other end of the first wiring (510) is electrically connected to the second auxiliary sub-portion (420); The second connecting terminal (300) is located on the second surface (170), the second main body (120) is provided with a first via hole corresponding to the second connecting terminal (300), the first folding portion (130) is provided with a second via hole corresponding to the second sub-auxiliary portion (420), and a second trace (520) is provided in the flexible circuit board (100) between the first surface (160) and the second surface (170), one end of the second trace (520) is electrically connected to the second connecting terminal (300) via the first via hole, and the other end of the second trace (520) is electrically connected to the second sub-auxiliary portion (420) via the second via hole.

5. The anti-disassembly safety connection structure according to claim 4, characterized in that: The anti-disassembly safety connection structure (10) further comprises a first reinforcement plate (610), wherein the first reinforcement plate (610) is located on the second surface (170) at a position corresponding to the first connection terminal (200); The anti-disassembly safety connection structure (10) further comprises a second reinforcement plate (620), wherein the second reinforcement plate (620) is located on the second surface (170) at a position corresponding to the second auxiliary sub-portion (420); The anti-disassembly safety connection structure (10) further comprises a third reinforcement plate (630), wherein the third reinforcement plate (630) is located on the first surface (160) at a position corresponding to the second connection terminal (300).

6. The anti-disassembly safety connection structure according to claim 1, characterized in that: The orthographic projection of the first folding portion (130) on the surface of the first main body portion (110) completely falls within the surface of the first main body portion (110).

7. The anti-disassembly safety connection structure according to claim 1, characterized in that: The flexible circuit board (100) further comprises a connecting portion (140) and a notch portion (150), wherein the connecting portion (140) and the notch portion (150) are both located between the first main body portion (110) and the second main body portion (120), and the two ends of the connecting portion (140) are respectively connected to the first main body portion (110) and the second main body portion (120).

8. The anti-disassembly safety connection structure according to claim 7, characterized in that: The first end of the first folding portion (130) is connected to a side of the first main body portion (110) close to the notch portion (150), and the length dimension of the first folding portion (130) in the first direction is smaller than the length dimension of the notch portion (150) in the first direction.

9. The anti-disassembly safety connection structure according to claim 1, characterized in that: The anti-disassembly safety connection structure (10) also includes a second auxiliary terminal, and the flexible circuit board (100) also includes a second folding portion, the first end of the second folding portion is connected to the second main body (120), the second end of the second folding portion and the second main body (120) are opposite to each other and are arranged at a distance, the second auxiliary terminal is arranged between the second folding portion and the second main body (120), and the first connection terminal (200) and the second connection terminal (300) are respectively electrically connected to the second auxiliary terminal.

10. A POS machine, characterized in that: include: A first circuit board (20), a second circuit board (30), and an anti-disassembly safety connection structure (10) as claimed in any one of claims 1 to 9, wherein the first circuit board (20) is electrically connected to the first connection terminal (200), and the second circuit board (30) is electrically connected to the second connection terminal (300).

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