Bank card payment terminal equipment with liquid crystal data anti-tampering protection device
Technical field
The utility model relates to the bank card payment terminal equipment that use in a kind of public consumption place, concrete ground a kind of bank card payment terminal equipment with liquid crystal data anti-tampering protection device of saying so.
Background technology
LCD is the human-computer interaction interface of bank card payment terminal equipment.Have 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 at present, liquid crystal display is exactly the key object of being attacked.The offender utilizes information such as display device miscue user card punching and input password, thereby obtains user's information.Existing bank card payment terminal equipment generally includes shell, liquid crystal display LCD and processor P CB plate, liquid crystal display is installed on the fore shell of shell, the setting of processor P CB plate in the enclosure, liquid crystal display is connected with processor P CB plate by connecting line, this structure makes crime dismounting attack liquid crystal display easily, carries out stealing of data such as password.
The utility model content
The purpose of this utility model is under attack easily in order to solve the liquid crystal display that prior art exists; in data transmission procedure, there are the technical matterss such as hidden danger that are stolen, and a kind of bank card payment terminal equipment with liquid crystal 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 bank card payment terminal equipment with liquid crystal data anti-tampering protection device; it comprises the processor P CB plate of liquid crystal display and its below; liquid crystal display is connected with processor P CB plate by signal wire; it is characterized in that: be welded with first fender and second fender on the described processor P CB plate; described first fender and second fender are the pcb board that inside is provided with the protection cabling; described first fender, second fender and processor P CB plate surround the bearer bar of a sealing, and described bearer bar can surround described signal wire fully.
In the further detailed structure of the utility model; also has following technical characterictic: also be provided with the electric silica gel post between described processor P CB plate and the liquid crystal display; have through hole on described first fender, described electric silica gel post is inserted in the through hole, and is electrically connected with processor P CB plate.
In the further detailed structure of the utility model; also have following technical characterictic: described first fender is a frame-type; its lower end forms opening; described second fender with processor P CB plate, first fender is vertical is provided with, the fixing and shutoff of described second fender is at the opening part of first fender.
In the further detailed structure of the utility model, also have following technical characterictic: have slot on the plate body of the openend both sides of described first fender, the two ends, bottom of described second fender are inserted in the described slot.
In the further detailed structure of the utility model, also have following technical characterictic: described processor P CB plate, first fender, and second fender be two-sided pcb board, two groups of protection cablings are set in the plate at least.
Compared with prior art; advantage of the present utility model and good effect are: because the utility model has adopted said structure; the liquid crystal display signal wire is enclosed in the closed bearer bar that processor P CB plate, first fender and second fender surrounded; no matter holing on any position of bearer bar, the stealer all can make the protection in the plate walk thread breakage or protection cabling and ground wire are linked together; thereby make the data destroying of primary processor, reach the purpose of protection sensitivity.In addition, being provided with of electric silica gel post can prevent further that the assailant from distorting the data message of liquid crystal display from the liquid crystal display top.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment, to do one to the accompanying drawing of required use among the embodiment below introduces simply, apparently, accompanying drawing in describing below 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 other accompanying drawing according to these accompanying drawings.
Fig. 1 the utility model structural representation;
Fig. 2 the utility model first fender structural representation;
Fig. 3 the utility model second fender structural representation.
1, fore shell; 2, processor P CB plate; 3, liquid crystal lens; 4, liquid crystal display; 5, electric silica gel post; 6, first fender; 7, second fender; 8, slot; 9, through hole; 10, signal wire; 11, opening; 12, cavity.
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 is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1-Fig. 3; the bank card payment terminal equipment that present embodiment has liquid crystal data anti-tampering protection device comprises liquid crystal display 4 and the processor P CB plate 2 below it; liquid crystal display 4 is connected with processor P CB plate 2 by signal wire 10; be fixed with first fender 6 and second fender 7 on the described processor P CB plate 2; described first fender 6 and second fender 7 are the pcb board that inside is provided with the protection cabling; described first fender 6, second fender 7 and processor P CB plate 2 surround a closed bearer bar, and described bearer bar can surround described signal wire 10 fully.
Particularly; the bank card payment terminal equipment that present embodiment has liquid crystal data anti-tampering protection device comprises housing; housing comprises fore shell 1 and the back cover (not shown) that is fastened; liquid crystal lens 3 and liquid crystal display 4 are housed on the fore shell 1; be provided with processor P CB plate 2 parts such as grade in the housing; after installing, described liquid crystal display 3 is positioned at processor P CB plate 2 tops; and be connected with processor P CB plate 2 by signal wire 10; be welded with first fender 6 and second fender 7 on the described processor P CB plate 2; described first fender 6 and second fender 7 are the pcb board that inside is provided with the protection cabling; described second fender 7 is perpendicular to the processor P CB plate 2 and first fender 6; and its height will be higher than first fender 6; described first fender 6; second fender 7 and processor P CB plate 2 surround a closed bearer bar jointly, and described bearer bar can surround described signal wire 10 fully.
Present embodiment has the bank card payment terminal equipment of liquid crystal data anti-tampering protection device; after liquid crystal display 4 is installed; it is connected in the bearer bar that signal wire 10 just in time is crushed on liquid crystal display 4 belows, processor P CB plate 2 tops with processor P CB plate 2; and surrounded institute by first fender 6 and second fender 7 all around, can be enclosed in the described bearer bar by the second highly higher fender 7 near liquid crystal display 4 one ends, downward signal wire 10 parts that bend.All can make the protection in the plate walk thread breakage or protection cabling and ground wire are linked together no matter the stealer holes on any position of bearer bar, thereby make the data destroying of primary processor, reach the purpose of protection sensitivity.
Based on technique scheme; optionally; in order to prevent that further the assailant from distorting the data message of liquid crystal display from liquid crystal display 4 tops; also be provided with elastic conduction silicagel column 5 between described processor P CB plate 2 and the liquid crystal display 4; have through hole 9 on described first fender 6; described electric silica gel post 5 is inserted in the described through hole 9, and is electrically connected with processor P CB plate 2.Concrete, described electric silica gel post 5 can be provided with two, and the upper left side and the lower right of corresponding described first fender 6 also should have two through holes 9, and two electric silica gel posts can be electrically connected with processor P CB plate 2.By the extruding of shell and liquid crystal display 4, electric silica gel post 5 is contacted closely on processor P CB plate 2.Attack when the stealer will dismantle liquid crystal display 4, when stealing data; after liquid crystal display 4 is opened; electric silica gel post 5 will be upspring; thereby do not contact with processor P CB plate 2, the protection cabling in the processor P CB plate is disconnected, CPU will detect signal to attack; thereby wipe the sensitive data of user in the machine; effectively guaranteed liquid crystal display data correctness and can not distorting property, better protection liquid-crystal display information has prevented distorting of liquid crystal display data.
Further; easy for installation in order to make, simple in structure; be easy to manufacture; described first fender 6 is a frame-type; its lower end forms opening 11; described second fender 7 and processor P CB plate 2, the 6 vertical settings of first fender, the 7 fixing also shutoff of described second fender are at opening 11 places of first fender 6.Concrete; described first fender 6 is for having certain thickness frame-type thin plate; its thickness is larger than the thickness of liquid crystal display signal wire 10, is cavity 12 in the middle of it, so that the signal wire 10 that liquid crystal display 4 is connected with processor P CB plate 2 can be contained in its cavity 12.The first fender lower end is an open type, so that described second fender 7 is weldingly fixed on the processor P CB plate 2, second fender 7 will block the opening 11 of first fender 6, so that data are stolen in tighter preventing.
Further, in order to make described second fender, 7 convenient welding, and can not double swerve, having slot 8 on the plate body of the openend both sides of described first fender 6, the two ends, bottom of described second fender 7 are inserted in the described slot 8.Concrete, have two ends, slot 8, the second fenders, 7 bottom on the plate body of the openend left and right sides of described first fender 6 and be inserted into respectively in the slot 8, like this, just can not double swerve behind second fender, 7 plug-in mountings.In order to make fixation, reliable, second fender, 7 bottoms are fixing with 2 welding of processor P CB plate, and the two ends, bottom are fixing with 6 welding of first fender.
Further, in order to reach tighter protection effect, described processor P CB plate 2, first fender 6, and second fender 7 be two-sided pcb board, two groups of protection cablings are set in the plate at least.Concrete, first internal protection cabling of plank adopts ground wire and the snakelike mode that detours of article one protective wire, and the spacing of ground wire and protective wire is 0.2mm; The plank another side adopts the snakelike mode that detours of second protective wire, and the spacing between the protective wire is 0.2mm.The cabling on two sides presents plumbness, no matter how the stealer holes all can make the protective wire fracture or protective wire and ground wire are linked together, thereby make the data destroying of primary processor with sensitivity, reaches the purpose of protection.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment 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.