CN201522951U - Anti-drilling and anti-prying key particle - Google Patents
Anti-drilling and anti-prying key particle Download PDFInfo
- Publication number
- CN201522951U CN201522951U CN2009202366549U CN200920236654U CN201522951U CN 201522951 U CN201522951 U CN 201522951U CN 2009202366549 U CN2009202366549 U CN 2009202366549U CN 200920236654 U CN200920236654 U CN 200920236654U CN 201522951 U CN201522951 U CN 201522951U
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- key
- compression leg
- spy
- keyboard
- keycap
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Abstract
The utility model relates to a key particle of an encryption keyboard, in particular to an anti-drilling and anti-prying key particle. The key particle is applied in the encryption keyboard and arranged between the panel of the encryption keyboard and a master control board of the keyboard, and comprises a key cap and a pressing column, wherein the pressing column comprises a first end connected with the key cap and a second end used for contacting and pressing the main control board; the key cap comprises a cap top and a containing space which is positioned at the lower surface of the cap top and provided with a downward opening; the key cap is sheathed on the first end of the pressing column by the containing space; and the diameter of the first end of the pressing column is smaller than the inner diameter of the containing space. As a clearance is formed between the pressing column and the cap top, the clearance plays the role of slipping when a lawless person pries the key cap at the right side, thus playing the role of preventing prying.
Description
Technical field
The utility model relates to a kind of key grain of Encryption Keyboard, particularly a kind of anti-drilling anti-spy key grain.
Background technology
Because the hardware encryption keyboard of bank self-aid apparatus is being born the input and the encryption work of user's bank cipher, therefore also store the working key and the master key of bank in the core processing part of keyboard.Some lawless person is in order to reach hidden purpose, often get or spy keyboard and steal user cipher by sled, even working key, the master key of deciphering bank, reach the wild ambition of stealing bank's data, directly threaten the safety of user and bank's data, fund.
Encryption Keyboard generally is provided with to spy and detects the protection structure and spy the detection protective circuit, when keyboard runs into physics and spies, spies and detects protective circuit output self-destruction signal, realizes the self-destroying function of Encryption Keyboard, thereby prevents that the lawless person from stealing bank's data.
Traditional Encryption Keyboard as shown in Figure 1, comprise key panel 1, key grain 3, the conventional components of master control borad 8 Encryption Keyboards such as grade, wherein be provided with anti-spy flexible circuit layer between key granulosa and the master control borad 8,, causes on this layer damage easily because frequently being pushed when button, the zone that is provided with this layer corresponding keys grain has through hole, and the design of this through hole causes anti-spy flexible circuit layer to cover master control borad 8 no longer fully, thereby formation deathtrap, the front of Encryption Keyboard is spied attack and become possibility, can avoid the detecting of sealed soft circuit board 5 from the downward probing of key grain when spying attack, and reach master control borad 8 easily, can spy on user cipher after the technological means such as employing camouflage, cause great potential safety hazard.
Therefore provide the operation of spying that how to prevent from key grain aspect to become particularly important.
The utility model content
The utility model purpose is to provide a kind of split type anti-drilling anti-spy key grain, can effectively prevent the operation of illegally ridiculing detective's encrypted message from the key panel front to protect Encryption Keyboard.
In order to realize the utility model purpose, the utility model provides following technical scheme:
This anti-drilling anti-spy key grain, it is applied in the Encryption Keyboard, and be arranged between Encryption Keyboard panel and the keyboard master control borad, it is characterized in that, this key grain comprises that a keycap and is by compression leg, should comprise one first end that connects this keycap and in order to contact and to push one second end of master control borad by compression leg, this keycap comprises a crown and is positioned at this crown lower surface and has the spatial accommodation of a downward opening, this keycap is socketed on this first end by compression leg by this spatial accommodation, and is somebody's turn to do the internal diameter of the diameter of first end that press compression leg less than this spatial accommodation.
Preferably, by also being provided with a umbrella-shaped structure between first end of compression leg and second end, the diameter of this umbrella-shaped structure is greater than the second end diameter of this key grain.
Preferably, this keycap adopts stainless steel, should press compression leg and adopt through heat treated No. 45 steel, and hardness number is greater than 45 degree.
Technical scheme provided by the utility model compared with prior art has following advantage:
The design of split type key grain can prevent from illegally to spy operation from the key panel front, because each key grain comprises that a keycap and is by compression leg, should comprise one first end that connects this keycap and penetrate this key grain hole until in order to contact and to push one second end of key contacts on the master control borad by compression leg, this keycap comprises a crown and is positioned at this crown lower surface and has the spatial accommodation of a downward opening, this keycap is socketed on this first end by compression leg by this spatial accommodation, and be somebody's turn to do the internal diameter of the diameter of first end that press compression leg less than this spatial accommodation, thereby make by compression leg and roof fall and form the gap, this gap design can play the effect of skidding when spying button cap in the lawless person front, thereby plays certain anti-spy effect.
Description of drawings
Fig. 1 is the structure chart of conventional cryptography keyboard;
Fig. 2 is the stereogram of a kind of novel Encryption Keyboard in the utility model preferred embodiment;
Fig. 3 is the STRUCTURE DECOMPOSITION figure of novel Encryption Keyboard shown in Figure 2;
Fig. 4 is sealed soft circuit board among Fig. 3, backing plate and conducting resinl assembling exploded view;
Fig. 5 is a split type key kernel structure schematic diagram in the utility model preferred embodiment; And
Fig. 6 is the cross section view of Encryption Keyboard in the utility model preferred embodiment;
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only 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.
Consult Fig. 3, a kind of Encryption Keyboard 100 provided by the present invention, it comprises a key panel 1, liner plate 2, key grain 3, water-proof silica-gel plate 4, sealed soft circuit board 5, backing plate 6, conductive rubber 7, master control borad 8 and base plate 9.Wherein above-mentioned parts 1 to 9 assembled in sequence forms Encryption Keyboard 100.
Wherein the shell of key grain 3 is two-stage ladder (31,32) shape, offer key grain through hole (11,21) respectively on corresponding key panel 1 and the liner plate 2, wherein key grain through hole 11 sizes of key panel 1 are slightly larger than key grain ladder 31 sizes, can and be packaged on the master control borad 8 by key panel 1 location to guarantee key grain 3.Key panel 1 is provided with the kind weldering screw 12 of encapsulation keyboard, the position of planting weldering screw 12 on liner plate 2, water-proof silica-gel plate 4, Encryption Keyboard sealed soft circuit board 5, backing plate 6, master control borad 8 and the base plate 9 corresponding key panels 1 is respectively equipped with the through hole that passes for screw 12, liner plate 2, water-proof silica-gel plate 4, Encryption Keyboard sealed soft circuit board 5, backing plate 6, master control borad 8 and base plate 9 is set in kind of weldering screw 12 backs successively adopts nut 10 to finish the locking assembling.
Water-proof silica-gel plate 4 places between key granulosa 3 and the master control borad 8, enters in the Encryption Keyboard 100 by the key grain hole on key panel 1, the liner plate 2 to prevent water or dust, and the circuit on the master control borad 8 is impacted or destroys and whole Encryption Keyboard 100 is scrapped.
Be provided with sealed soft circuit board 5 and backing plate 6 between water-proof silica-gel plate 4 and the master control borad 8, sealed soft circuit board 5 built-in anti-spy circuit for detecting (not shown)s, anti-spy circuit for detecting is guided to the surface of sealed soft circuit board 5 by circuit pin 51, and is electrically connected with the control circuit (not shown) formation of master control borad 8 by conducting resinl 7.Because the front of sealed soft circuit board 5 in Encryption Keyboard covers master control borad 8 fully, thereby can effectively take precautions against the detecting of initiating from Encryption Keyboard 100 fronts of spying.In case when touching sealed soft circuit board 5 at an arbitrary position from spying of Encryption Keyboard 100 fronts; anti-spy circuit for detecting is touched; anti-spy circuit for detecting is transferred to signal the control circuit of master control borad 8 by circuit pin 51 and conducting resinl 7; control circuit sends the keyboard command-destruct; Encryption Keyboard is thoroughly damaged; play the protection front panel and do not spy the purpose of attack, improve the fail safe of whole Encryption Keyboard greatly.
Consult Fig. 2 to Fig. 4; the encapsulation keyboard that key panel 1 sets firmly is with planting totally 9 on weldering screw 12; wherein 8 surrounding distribution setting and each limits along keyboard are provided with two; the 9th centre that is arranged at Encryption Keyboard; and conducting resinl 7 be arranged at the 9th kind weldering screw near; conducting resinl 7 can guarantee the power on accurate contraposition of circuit pin of pass pin 51 and master control borad 8 of sealed soft circuit board 5 under the location of this kind weldering screw; and guarantee that conducting resinl 7 can keep well stressed after assembling; make Encryption Keyboard 100 finish the assembling back sealed soft circuit board 5 pass pin 51 that powers on; the circuit pin of conducting resinl 7 and master control borad 8 can push fully and put in place; when illegally being become flexible, Encryption Keyboard reaches the purpose of self-destruction protection.For the circuit pin 51 on the sealed soft circuit board 5 is contacted with conducting resinl 7, the place of backing plate 6 corresponding circuits pins 51 offers through hole 61, this through hole 61 can hold conducting resinl 7, play positioning action, the power on location of circuit pin of pass pin 51, conducting resinl 7 and master control borad 8 of sealed soft circuit board 5 is prepared reliably more conducting resinl 7.
Since sealed soft circuit board 5 to push the life-span limited, push 1,000,000 times requirement well below the key grain.Therefore sealed soft circuit board 5 and flexible PCB backing plate 6 corresponding keys grains 3 offer through hole 52 and 62 respectively by the place of compression leg 33, and key grain 3 passes this through hole 52 and 62 and directly pushes key contacts on the master control borad 8, consults Fig. 3 and Fig. 4.Offering of through hole 52 causes sealed soft circuit board 5 can not cover master control borad 8 fully, thereby formation deathtrap, the front of Encryption Keyboard is spied attack and become possibility, can avoid the detecting of sealed soft circuit board 5 from the downward probing of key grain when spying attack, and reach master control borad 8 easily, can spy on user cipher after the technological means such as employing camouflage, cause great potential safety hazard.
In order to address the above problem, the present invention further provides a kind of split type key grain 3, as shown in Figure 5 and Figure 6, this key grain 3 comprises keycap 34 and by compression leg 35, this keycap 34 comprises crown 341 and is positioned at crown 341 lower surfaces and has a spatial accommodation 342 under shed, should comprise one first end 351 and one second end 352 by compression leg 35, this keycap 34 is socketed on this first end 351 by compression leg 35 by this spatial accommodation 342, and the diameter of this first end 351 is slightly less than the internal diameter of this spatial accommodation 342, therefore should leave certain interval between the perisporium 343 by first end 351 of compression leg 35 and this spatial accommodation 342, this gap design can play the effect of skidding when spying button cap in the lawless person front, thereby plays certain anti-spy effect.In addition, should be by also being socketed with a umbrella-shaped structure 353 between first end 351 of compression leg 35 and second end 352, the diameter of this umbrella-shaped structure 353 is greater than the diameter of the key grain through hole 52,62 on sealed soft circuit board 5 and the flexible PCB backing plate 6.This umbrella-shaped structure is between this key panel 1 and liner plate 2 under the assembled state; the key grain through hole 52 that this umbrella-shaped structure 353 covers on the sealed soft circuit board 5; when the lawless person attempts to spy keycap 34 from the side; the inclined-plane, top that stings this umbrella-shaped structure 353 can skid equally; thereby play certain anti-spy effect; make the zone under whole umbrella-shaped structure 353 protections become anti-spy safety zone, therefore eliminated and offered the potential safety hazard that key grain through hole 52 causes on the flexible PCB 5.Simultaneously, in order to control the button feel, usually design makes and press the diameter of the diameter d 0 of compression leg second end 352 less than through hole 52 and 62, but greater than the diameter of key contacts encapsulating structure on the master control borad, guarantees that like this button side pressure holds at present and have the shell fragment of key contacts when being offset to be depressed smoothly slightly.In addition, spy by the key grain for further preventing the lawless person, the keycap 34 of key grain 3 can adopt stainless steel, can adopt the 45# steel through Overheating Treatment by compression leg, and the HRC hardness number reaches more than 45 degree, thereby just ensures that the key grain is difficult for being spied and destroying on the material.
The principle that this split type key grain 3 is anti-spy, specifically see also Fig. 5, choose under the precondition of appropriate value by the diameter D that calculates umbrella-shaped structure, guarantee that spying the umbrella-shaped structure extreme position from the exposed face of key grain 3 is that angle is that the diameter H of zone and the border circular areas of the last Plane intersects formation of master control borad 8 of A is greater than the diameter of the through hole on the flexible PCB 5 52.Then when spy the side of key grain 3 exposed faces, outside the A angular zone in case visit and flexible PCB 5, then as long as wherein any line broken circuit, short circuit between perhaps any two adjacent lines, can export the self-destruction signal, realize the keyboard self-destruction, play good protective action; And when in the A angular zone, spying, skid by compression leg 35, can't penetrate key grain 3, then can't spy on master control borad 8 and steal user cipher.
Given this, for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (3)
1. anti-drilling anti-spy key grain, it is applied in the Encryption Keyboard, and be arranged between Encryption Keyboard panel and the keyboard master control borad, it is characterized in that, this key grain comprises that a keycap and is by compression leg, should comprise one first end that connects this keycap and in order to contact and to push one second end of master control borad by compression leg, this keycap comprises a crown and is positioned at this crown lower surface and has the spatial accommodation of a downward opening, this keycap is socketed on this first end by compression leg by this spatial accommodation, and is somebody's turn to do the internal diameter of the diameter of first end that press compression leg less than this spatial accommodation.
2. anti-drilling anti-spy key grain as claimed in claim 1 is characterized in that, by also being provided with a umbrella-shaped structure between first end of compression leg and second end, the diameter of this umbrella-shaped structure is greater than the second end diameter of this key grain.
3. anti-drilling anti-spy key grain as claimed in claim 1 is characterized in that, this keycap adopts stainless steel, should press compression leg and adopt through heat treated No. 45 steel, and hardness number is greater than 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202366549U CN201522951U (en) | 2009-09-29 | 2009-09-29 | Anti-drilling and anti-prying key particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202366549U CN201522951U (en) | 2009-09-29 | 2009-09-29 | Anti-drilling and anti-prying key particle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522951U true CN201522951U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202366549U Expired - Lifetime CN201522951U (en) | 2009-09-29 | 2009-09-29 | Anti-drilling and anti-prying key particle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522951U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930633A (en) * | 2010-08-27 | 2010-12-29 | 广州广电运通金融电子股份有限公司 | Prying-prevention keyboard of automatic telling machine |
| WO2011038619A1 (en) * | 2009-09-29 | 2011-04-07 | 广州广电运通金融电子股份有限公司 | Encryption keyboard |
| CN107845526A (en) * | 2017-11-30 | 2018-03-27 | 深圳麦格米特电气股份有限公司 | Keypad |
| CN108492489A (en) * | 2018-03-07 | 2018-09-04 | 深圳市新国都支付技术有限公司 | A kind of POS machine massage protection architecture and the POS machine based on this |
-
2009
- 2009-09-29 CN CN2009202366549U patent/CN201522951U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011038619A1 (en) * | 2009-09-29 | 2011-04-07 | 广州广电运通金融电子股份有限公司 | Encryption keyboard |
| US8772653B2 (en) | 2009-09-29 | 2014-07-08 | Grg Banking Equipment Co., Ltd. | Encryption keyboard |
| CN101930633A (en) * | 2010-08-27 | 2010-12-29 | 广州广电运通金融电子股份有限公司 | Prying-prevention keyboard of automatic telling machine |
| WO2012024994A1 (en) * | 2010-08-27 | 2012-03-01 | 广州广电运通金融电子股份有限公司 | Anti-prying encrypted keyboard |
| CN101930633B (en) * | 2010-08-27 | 2012-11-14 | 广州广电运通金融电子股份有限公司 | Prying-prevention keyboard of automatic telling machine |
| EP2610822A1 (en) * | 2010-08-27 | 2013-07-03 | GRG Banking Equipment Co., Ltd. | Anti-prying encrypted keyboard |
| AU2011295578B2 (en) * | 2010-08-27 | 2014-02-13 | Grg Banking Equipment Co., Ltd. | Anti-prying encrypted keyboard |
| EP2610822A4 (en) * | 2010-08-27 | 2014-05-07 | Grg Banking Equipment Co Ltd | Anti-prying encrypted keyboard |
| US8872047B2 (en) | 2010-08-27 | 2014-10-28 | Grg Banking Equipment Co., Ltd. | Anti-prying encrypted keyboard |
| CN107845526A (en) * | 2017-11-30 | 2018-03-27 | 深圳麦格米特电气股份有限公司 | Keypad |
| CN108492489A (en) * | 2018-03-07 | 2018-09-04 | 深圳市新国都支付技术有限公司 | A kind of POS machine massage protection architecture and the POS machine based on this |
| CN108492489B (en) * | 2018-03-07 | 2021-02-19 | 深圳市新国都支付技术有限公司 | POS machine button protection architecture and because POS machine of this |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |
|
| CX01 | Expiry of patent term |