CN202948451U - Anti-tamper protection device of sensitive data of display - Google Patents
Anti-tamper protection device of sensitive data of display Download PDFInfo
- Publication number
- CN202948451U CN202948451U CN 201220685985 CN201220685985U CN202948451U CN 202948451 U CN202948451 U CN 202948451U CN 201220685985 CN201220685985 CN 201220685985 CN 201220685985 U CN201220685985 U CN 201220685985U CN 202948451 U CN202948451 U CN 202948451U
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- China
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- liquid crystal
- crystal display
- pcb mainboard
- fender
- sensitive data
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Abstract
The utility model relates to an anti-tamper protection device of sensitive data of a display to solve the technical problems that a liquid crystal display screen in the prior art is easily attacked and the like. The anti-tamper protection device comprises a liquid crystal screen bracket, a liquid crystal screen, and PCB (printed circuit board) main boards arranged below the liquid crystal screen bracket; the liquid crystal screen is connected with the PCB main boards through a soft plate signal wire; a first protection plate is fixed on each PCB main board in a welding manner; a second protection plate is fixed on the first protection plate in the welding manner; the PCB boards for protecting routing are arranged inside the first protection plate and the second protection plate; an anti-tamper switch is arranged on each PCB main board; conductive carbon particles are arranged on the anti-tamper switches; the conductive carbon particles are extruded on the anti-tamper switches by the liquid crystal screen; and if the display is prized, the conductive surface of each carbon particle is separated from the anti-tamper switch of each PCB main board, so that a loop of a self-destruction signal is cut off. Thus, the CPU (central processing unit) knows that the machine is attacked to destroy the sensitive data, so as to achieve the purpose of protection.
Description
Technical field
The utility model relates to a kind of protective device of Electronic Finance device display, and concrete ground says a kind of display sensitive data anti-tampering protection device.
Background technology
Liquid crystal display is the human-computer interaction interface of bank card payment terminal equipment.Have at present a lot of offenders to think that a blanking method is stolen the user's that swipes the card password and other useful informations to the greatest extent, liquid crystal display is exactly the key object of being attacked.The offender utilizes the information such as display miscue user card punching and input password, thereby obtains user's information.Existing bank card payment terminal equipment generally includes shell, LCDs and PCB mainboard, liquid crystal display is arranged on the fore shell of shell, the setting of PCB mainboard in the enclosure, liquid crystal display is connected with the PCB mainboard by data line, this structure easily makes the offender dismantle the attack LCDs, carries out stealing of the data such as password.
Summary of the invention
The purpose of this utility model is easily under attack for the LCDs that solves the prior art existence, has the technical matterss such as hidden danger that are stolen in data transmission procedure, and a kind of display sensitive data anti-tampering protection device that provides.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
a kind of display sensitive data anti-tampering protection device, it comprises liquid crystal display support, be arranged on the liquid crystal display in liquid crystal display support, and the PCB mainboard that is positioned at the liquid crystal display support below, described liquid crystal display is connected with the PCB mainboard by the soft board signal wire, it is characterized in that: be welded and fixed the first fender on described PCB mainboard, be welded and fixed the second fender on described the first fender, described the first fender and the second fender are the pcb board that inside is provided with the protection cabling, on described PCB mainboard, breaking-proof switch is set, the conduction carbon granules is set on described breaking-proof switch, described conduction carbon granules is squeezed on described breaking-proof switch by liquid crystal display.
In the further detailed structure of the utility model; also has following technical characterictic: signalization line slot on the described PCB mainboard back side; all have the cabling mouth on described PCB mainboard, the first fender and the second fender; described signal wire slot is exposed at cabling mouth place, is inserted in the signal wire slot by the cabling mouth from first and second fender top after the bending of described soft board signal wire to be connected with the PCB mainboard.
In the further detailed structure of the utility model, also have following technical characterictic: have through hole on described liquid crystal display support, described conduction carbon granules is arranged in through hole, and is pressed on by described liquid crystal display on the breaking-proof switch of PCB mainboard.
In the further detailed structure of the utility model, also have following technical characterictic: two breaking-proof switch are set on described PCB mainboard at least, and described breaking-proof switch is arranged on the place, cabling mouth diagonal angle of PCB mainboard.
In the further detailed structure of the utility model, also have following technical characterictic: described conduction carbon granules profile is plum blossom-shaped.
In the further detailed structure of the utility model, also have following technical characterictic: an angle of described liquid crystal display support outer wall is provided with elastic fastening hook, and described PCB mainboard has groove on the edge, and described elastic fastening hook is installed in described groove.
Compared with prior art, advantage of the present utility model and good effect are: due to this
Utility model has adopted said structure; liquid crystal display soft board signal wire is enclosed in the bearer bar that PCB mainboard, the first fender and the second fender surround; if display is prized; the conduction carbon granules will no longer be extruded; the conducting surface of carbon granules will break away from the breaking-proof switch of PCB mainboard, makes the loop of self-destruction signal disconnect, thereby makes CPU know that machine is under attack; thereby sensitive data is destroyed, reached the purpose of protection.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment, the below will do one to the accompanying drawing of required use in embodiment and introduce simply, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, to those skilled in the art, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 the utility model stereographic map;
Fig. 2 the utility model liquid crystal display and liquid crystal display support be the installment state schematic diagram not;
Fig. 3 the utility model liquid crystal display and PCB mainboard be the installment state schematic diagram not.
10, liquid crystal display; 11, soft board signal wire; 20, liquid crystal display support; 21, grab;
22, through hole; 23, screw hole column; 30, PCB mainboard; 31, signal wire slot; 32, breaking-proof switch; 33, groove; 40, the first fender; 50, the second fender; 60, conduction carbon granules; 70, cabling mouth.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
referring to Fig. 1-Fig. 3, the present embodiment display sensitive data anti-tampering protection device comprises liquid crystal display support 20, be arranged on the liquid crystal display 10 in liquid crystal display support 20, and the PCB mainboard 30 that is positioned at liquid crystal display support 20 belows, described liquid crystal display 10 is connected with PCB mainboard 30 by soft board signal wire 11, be welded and fixed the first fender 40 on described PCB mainboard 30, be welded and fixed the second fender 50 on described the first fender 40, described the first fender 40 and the second fender 50 are the pcb board that inside is provided with the protection cabling, on described PCB mainboard 30, breaking-proof switch 32 is set, conduction carbon granules 60 is set on described breaking-proof switch 32, described conduction carbon granules 60 is squeezed on described breaking-proof switch 32 by liquid crystal display 10.
particularly, the present embodiment display sensitive data anti-tampering protection device comprises liquid crystal display 10, liquid crystal display support 20, described liquid crystal display 10 is arranged in liquid crystal display support 20, PCB mainboard 30 is arranged on liquid crystal display support 20 belows, there is one tunnel self-destruction signal PCB mainboard 30 inside, walk snakelike coiling in plate, the self-destruction signal comes from CPU, described liquid crystal display 10 is connected with PCB mainboard 30 by soft board signal wire 11, described soft board signal wire 11 is 4 layers of flexible soft board, inner cabling adopts 3.3V power lead and the snakelike winding mode of self-destruction signal, flexible soft board outermost layer electrical properties is the 3.3V power supply, inner two-layer is data line and self-destruction signal wire, 3.3V the spacing of power lead and self-destruction signal wire is 0.2mm, the self-destruction signal wire forms closed loop by the CPU that signal wire slot 31 is connected to mainboard.Be welded and fixed the first fender 40 on described PCB mainboard 30, be welded and fixed the second fender 50 on described the first fender 40, described the first fender 40 and the second fender 50 are the pcb board that inside is provided with the protection cabling.There is two-way self-destruction signal described the first fender 40 inside, walk snakelike coiling in plate, and it is welded on PCB mainboard 30 by pad; The self-destruction signal comes from the CPU of mainboard; It is the four sides plate, and inner cabling adopts 3.3V power lead and the snakelike winding mode of self-destruction signal, and the spacing of 3.3V power lead and protective wire is 0.2mm; The cabling on two sides presents plumbness, no matter how the stealer holes all can make the fracture of self-destruction signal wire or self-destruction signal wire and 3.3V power lead are linked together, thereby making primary processor with the data destroying of sensitivity, reaches the purpose of protection.Described the first fender 40 can cover the leakage visible area outside of most of PCB mainboard 30, reaches the purpose of protection.There is one tunnel self-destruction signal described the second fender 50 inside, walk snakelike coiling in plate, and the self-destruction signal comes from the first fender, is welded on the first fender by pad.Described the second fender 50 is dual platen, and inner cabling adopts 3.3V power lead and the snakelike winding mode of self-destruction signal, and the spacing of 3.3V power lead and protective wire is 0.2mm; Can cover the leakage visible area outside of part PCB mainboard 30, and cover signal wire slot 32 subregions, thereby can effectively stop detectable signal line slot 32, destroy the behaviors such as liquid crystal display support 20.On described PCB mainboard 30, breaking-proof switch 31 is set, conduction carbon granules 60 is set on described breaking-proof switch 31, described conduction carbon granules 60 is squeezed on described breaking-proof switch 31 by liquid crystal display 10.Being arranged on liquid crystal display 10 and PCB mainboard 30 on support 20 will conduct electricity carbon granules 60 and be squeezed on breaking-proof switch 31; make the self-destruction signal wire on PCB mainboard 30 form the loop; if liquid crystal display is moved; conduction carbon granules 60 will no longer be extruded; the conducting surface of conduction carbon granules 60 will break away from the breaking-proof switch 31 of PCB mainboard 30, make the loop of self-destruction signal disconnect, thereby make CPU know that machine is under attack; sensitive data will be wiped, thereby reach the purpose of protecting.
Based on technique scheme; optionally; in order to make liquid crystal display 10 be connected more convenient with PCB mainboard 30; signalization line slot 32 on described PCB mainboard 30 back sides; all have cabling mouth 70 on described PCB mainboard 30, the first fender 40 and the second fender 50; described signal wire slot 32 is exposed at cabling mouth 70 places, is inserted in signal wire slot 31 by cabling mouth 70 from first and second fender 40,50 tops after described soft board signal wire 11 bendings to be connected with PCB mainboard 30.
Further, in order to make conduction carbon granules 60 installations, fixing more convenient, have through hole 22 on described liquid crystal display support 20, described conduction carbon granules 60 is arranged in through hole 22, and is pressed on by described liquid crystal display 10 on the breaking-proof switch 32 of PCB mainboard 30.
Further, two breaking-proof switch 32 are set at least on described PCB mainboard 30, described breaking-proof switch 32 is arranged on cabling mouth 70 places, diagonal angle of PCB mainboard 30, to reach better protection effect.
Further, in order to increase the surface of contact of conduction carbon granules 60 and through hole 22, described conduction carbon granules 60 profiles are plum blossom-shaped.
Further, an angle of described liquid crystal display support 20 outer walls is provided with elastic fastening hook 21, described PCB mainboard has groove 33 on 30 edges, in the described groove 33 that described elastic fastening hook 21 is installed on, like this, when grab 21 snap in the groove 33 of PCB mainboard 30 interior after, can make the mounting hole accurate positioning on screw hole column 23 and the PCB mainboard 30 on liquid crystal display support 20 outer walls other three angles, thereby be screwed into smoothly three screws, both reduced assembly difficulty, reduced again screw number.
[0027]It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the utility model embodiment technical scheme.
Claims (6)
1. display sensitive data anti-tampering protection device, it comprises liquid crystal display support, be arranged on the liquid crystal display in liquid crystal display support, and the PCB mainboard that is positioned at the liquid crystal display support below, described liquid crystal display is connected with the PCB mainboard by the soft board signal wire, it is characterized in that: be welded and fixed the first fender on described PCB mainboard, be welded and fixed the second fender on described the first fender, described the first fender and the second fender are the pcb board that inside is provided with the protection cabling, on described PCB mainboard, breaking-proof switch is set, the conduction carbon granules is set on described breaking-proof switch, described conduction carbon granules is squeezed on described breaking-proof switch by liquid crystal display.
2. display sensitive data anti-tampering protection device according to claim 1; it is characterized in that: signalization line slot on the described PCB mainboard back side; all have the cabling mouth on described PCB mainboard, the first fender and the second fender; described signal wire slot is exposed at cabling mouth place, is inserted in the signal wire slot by the cabling mouth from first and second fender top after the bending of described soft board signal wire to be connected with the PCB mainboard.
3. display sensitive data anti-tampering protection device according to claim 1 and 2, it is characterized in that: have through hole on described liquid crystal display support, described conduction carbon granules is arranged in through hole, and is pressed on by described liquid crystal display on the breaking-proof switch of PCB mainboard.
4. display sensitive data anti-tampering protection device according to claim 1 and 2, it is characterized in that: two breaking-proof switch are set on described PCB mainboard at least, and described breaking-proof switch is arranged on the place, cabling mouth diagonal angle of PCB mainboard.
5. display sensitive data anti-tampering protection device according to claim 1 and 2, it is characterized in that: described conduction carbon granules profile is plum blossom-shaped.
6. display sensitive data anti-tampering protection device according to claim 1 and 2; it is characterized in that: an angle of described liquid crystal display support outer wall is provided with elastic fastening hook; described PCB mainboard has groove on the edge, and described elastic fastening hook is installed in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685985 CN202948451U (en) | 2012-12-13 | 2012-12-13 | Anti-tamper protection device of sensitive data of display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685985 CN202948451U (en) | 2012-12-13 | 2012-12-13 | Anti-tamper protection device of sensitive data of display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948451U true CN202948451U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220685985 Expired - Fee Related CN202948451U (en) | 2012-12-13 | 2012-12-13 | Anti-tamper protection device of sensitive data of display |
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| CN (1) | CN202948451U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106056002A (en) * | 2016-07-21 | 2016-10-26 | 百富计算机技术（深圳）有限公司 | Touch screen safety protection structure and display apparatus |
| TWI647707B (en) * | 2017-09-30 | 2019-01-11 | 宇瞻科技股份有限公司 | Data storage device with data protection organization and data protection method thereof |
| CN110276218A (en) * | 2019-06-26 | 2019-09-24 | 昆山国显光电有限公司 | Display module, self-destruction method, the electronic equipment of display module |
-
2012
- 2012-12-13 CN CN 201220685985 patent/CN202948451U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106056002A (en) * | 2016-07-21 | 2016-10-26 | 百富计算机技术（深圳）有限公司 | Touch screen safety protection structure and display apparatus |
| TWI647707B (en) * | 2017-09-30 | 2019-01-11 | 宇瞻科技股份有限公司 | Data storage device with data protection organization and data protection method thereof |
| CN110276218A (en) * | 2019-06-26 | 2019-09-24 | 昆山国显光电有限公司 | Display module, self-destruction method, the electronic equipment of display module |
| CN110276218B (en) * | 2019-06-26 | 2021-03-26 | 昆山国显光电有限公司 | Display module, self-destruction method of display module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20201213 |