CN103942892B - The EPP keyboard that a kind of security is good - Google Patents
The EPP keyboard that a kind of security is good Download PDFInfo
- Publication number
- CN103942892B CN103942892B CN201410032396.8A CN201410032396A CN103942892B CN 103942892 B CN103942892 B CN 103942892B CN 201410032396 A CN201410032396 A CN 201410032396A CN 103942892 B CN103942892 B CN 103942892B
- Authority
- CN
- China
- Prior art keywords
- keyboard
- protection circuit
- circuit plate
- button
- conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses the EPP keyboard that a kind of security is good, comprise the key panel, button framework, several buttons be connected with button framework, silica gel pad, upper protection circuit plate, keyboard board, keyboard mainboard, the button conductive post identical with the quantity of button and the keyboard bonnet that set gradually from top to bottom; Described silica gel pad is provided with several projections matched with each button, upper protection circuit plate and through hole position corresponding with each projection on keyboard board is equipped with for installing button conductive post; The through hole of described keyboard board is that the large ladder of lower inner diameter is poroid, and described button conductive post bottom is provided with the baffle plate for being connected with shoulder hole bottom.The present invention has that to disassemble difficulty large, and anti-attack ability is strong, and data security is good; Reduce the risk that cardholder information is revealed and property is impaired, guarantee the feature that in cardholder account, debt is not easily stolen.
Description
Technical field
The present invention relates to ATM (automatic teller machine) (ATM) technical field of safety protection, especially relating to one, to resist external attack ability strong, the EPP keyboard that the security that the Transaction Information of EPP keyboard is not easily stolen is good.
Background technology
EPP keyboard is the user data input equipment of the holder be installed in ATM, needs to input PIN code when holder uses ATM to conclude the business, and EPP keyboard is given backstage after being encrypted PIN code and verified.
At present, the attack means of EPP keyboard is mainly: at the button place of the key panel of EPP keyboard, BUG circuit is installed, when holder is by EPP input through keyboard PIN code, the plaintext of BUG circuit record PIN code; Thus steal the Transaction Information of EPP keyboard.
Therefore, a kind ofly resist the strong EPP keyboard of external attack ability in the urgent need to developing at present, thus ensure that the PIN of holder is not obtained by lawless person, the protection personal information of holder and the safety of account.
Chinese patent mandate publication number: CN201237811Y, authorize publication date on May 13rd, 2009, disclose a kind of reinforced ATM keyboard, comprise key panel, be arranged on the circuit board below key panel, the screw closely fix key panel and circuit board and nut, the position that described key panel is fixedly mounted with screw is embedded with reinforcement.The weak point of this utility model is, resists external attack ability more weak, and the Transaction Information of EPP keyboard is easily stolen.
Summary of the invention
Goal of the invention of the present invention is that to resist external attack ability more weak in order to overcome EPP keyboard of the prior art, the deficiency that the Transaction Information of EPP keyboard is easily stolen, providing one, to resist external attack ability strong, the EPP keyboard that the security that the Transaction Information of EPP keyboard is not easily stolen is good.
To achieve these goals, the present invention is by the following technical solutions:
The EPP keyboard that security is good, comprises the key panel, button framework, several buttons with button framework removably connects, silica gel pad, upper protection circuit plate, keyboard board, keyboard mainboard, the button conductive post identical with the quantity of button and the keyboard bonnet that set gradually from top to bottom; Described silica gel pad is provided with several projections matched with each button, upper protection circuit plate and through hole position corresponding with each projection on keyboard board is equipped with for installing button conductive post; The through hole of described keyboard board is that the large ladder of lower inner diameter is poroid, and described button conductive post bottom is provided with the baffle plate for being connected with shoulder hole bottom;
Keyboard mainboard lower surface is provided with controller, the metal key-press reed being provided with key contacts and matching with key contacts with each projection corresponding section of keyboard mainboard upper surface; The upper surface of each button conductive post contacts with corresponding protruding lower surface, and the lower surface of each button conductive post contacts with corresponding metal key-press reed upper surface;
Keyboard mainboard upper surface and upper protection circuit plate lower surface are equipped with the first pad group, and keyboard board is provided with the first conductive rubber block, and the first conductive rubber block upper and lower surface contacts with the first pad group on upper protection circuit plate and keyboard mainboard respectively; Each key contacts and the first pad group are electrically connected with controller respectively;
Keyboard mainboard upper surface is also provided with several switch contacts and metal switch reed that is identical with switch contact quantity and that be connected one by one with each switch contact; Keyboard board is provided with for extrusion metal switch spring and makes the contact compression leg of metal switch reed and switch contact close contact; The quantity of contact compression leg is identical with the quantity of switch contact, and each switch contact is all electrically connected with controller.Key panel, button framework, silica gel pad, upper protection circuit plate are connected successively with keyboard board, and keyboard bonnet is connected with keyboard board.
After each ingredient of EPP keyboard of the present invention is assembled together; under the squeezing action of upper protection circuit plate and keyboard mainboard, the first conductive rubber block makes pad corresponding in the first pad group on protection circuit plate and the first pad group on keyboard mainboard be electrically connected one by one.If someone wants to install BUG circuit at the key circuit place on keyboard mainboard surface; need each assembly first disassembling EPP keyboard; but; the pressure that the first conductive rubber block upper and lower surface is subject to can be caused in the process disassembled to lose; and cause the electrical connection of the first conductive rubber pad corresponding with the first pad group on upper protection circuit plate and the first pad group on keyboard mainboard to disconnect further; after controller detects that circuit disconnects; automatically the program be stored in controller and data can be controlled to delete, thus ensure that the security of the data in EPP keyboard.
Can there is elastic deformation in metal switch reed, make metal switch reed and switch contact close contact under the pressure effect of contact compression leg; When upper protection circuit plate is lost contact compression leg applied pressure, be separated in the middle part of metal switch reed with switch contact, controller can control the program stored in the controller and data to delete automatically, thus ensure that the security of the data in EPP keyboard.
Therefore; the present invention has dual program and data self-destruction protection mechanism, and resist external attack ability strong, the Transaction Information of EPP keyboard is not easily stolen; reduce the risk that cardholder information is revealed and property is impaired, guarantee the feature that in cardholder account, debt is not easily stolen.
As preferably, described contact comprises rectangular conductive and is coated with line and is positioned at rectangular conductive and be coated with circular conductive coating in the middle part of line; Upwards arch upward in the middle part of described reed, reed edge is coated with line with the rectangular conductive of corresponding contact and is electrically connected.
Elastic deformation can be there is in metal switch reed under the pressure effect of contact compression leg, the center of metal switch reed is electrically connected with the circular conductive coating on the keyboard mainboard of metal switch reed bottom, thus makes the rectangular conductive of the correspondence be positioned on keyboard mainboard be coated with line and be positioned at the circular conductive coating formation electrical connection in the middle part of rectangular conductive painting line.When upper protection circuit plate is lost contact compression leg applied pressure; the elastic deformation of metal switch reed can disappear; the electrical connection that rectangular conductive is coated with between line and the circular conductive coating in the middle part of rectangular conductive painting line disconnects; when controller detects that rectangular conductive is coated with the signal of the electrical connection disconnection between line and circular conductive coating; automatically the program be stored in controller and data can be controlled to delete, thus ensure that the security of the data in EPP keyboard.
When the hand depresses button of user, button conductive post extrusion metal button reed, and make to contact with circular conductive coating in the middle part of metal key-press reed, when the hand of user leaves button, pop up in the middle part of metal key-press reed, with circular conductive coating segregation in the middle part of metal key-press reed.
As preferably, between described keyboard mainboard and keyboard bonnet, be provided with positioning framework, lower protection circuit plate and over cap from top to bottom successively; Described positioning framework is provided with 2 the second conductive rubber blocks; lower protection circuit plate upper surface is provided with 2 the second pad groups; keyboard mainboard lower surface is provided with the second pad group of lower protection circuit plate in corresponding two the second pad groups; the upper and lower surface of the second conductive rubber block is electrically connected with the second pad group of keyboard mainboard lower surface, lower protection circuit plate respectively, and the second pad group is electrically connected with controller.Positioning framework is connected with over cap successively with lower protection circuit plate.
Second conductive rubber block makes pad corresponding in the second pad group on lower protection circuit plate and the second pad group on keyboard mainboard form electrical connection under the squeezing action of lower protection circuit plate and keyboard mainboard; If someone wants to install BUG circuit at the key circuit place on keyboard mainboard surface; need each assembly first disassembling EPP keyboard; but; the pressure that the second conductive rubber block upper and lower surface can be caused in the process disassembled to be subject to is lost; and cause the electrical connection of the second conductive rubber pad corresponding with the second pad group on lower protection circuit plate and the second pad group on keyboard mainboard to disconnect further; after controller detects that circuit disconnects; automatically the program be stored in controller and data can be controlled to delete, thus ensure that the security of the data in EPP keyboard.
As preferably, described silica gel pad top surface edge is provided with 2 elastic protrusions, and the silica gel pad lower surface corresponding with 2 elastic protrusions is equipped with conductive coating, and 2 conductive coatings are all electrically connected with controller; The silica gel pad at elastic protrusion place and ATM squeeze flow; Controller is electrically connected with the USB interface be located on keyboard mainboard.
ATM keyboard installation place back side of panel comprises 4 studs, and 4 studs are connected with clamp nut through after silica gel pad, upper protection circuit plate, keyboard board successively, exposed silica gel pad outside key panel and the tight pressing of ATM panel.This mounting means can only make EPP key panel out exposed, adds the difficulty that outside violence is disassembled.
In normal state, together with silica gel pad is closely pressed together on ATM panel, elastic protrusion can extrude conductive coating, thus conductive coating is electrically connected with controller, when needing each assembly normally disassembling EPP keyboard, by USB interface to controller input of control commands, the electrical connection of conductive coating and controller disconnects, and controller also can not the self-destruction program of start-up routine and data;
But, if not by USB interface to controller input of control commands, the electrical connection of conductive coating and controller disconnects; Then controller is thought to have received outside attack, then automatically control the program be stored in controller and data to delete, thus ensure that the security of the data in EPP keyboard.
As preferably, the first pad group on keyboard mainboard upper surface and upper protection circuit plate lower surface all comprises at least 8 rectangular pads, and each rectangular pads on upper protection circuit plate is corresponding one by one with each rectangular pads of keyboard mainboard.
As preferably, described upper protection circuit plate is four layers of printed circuit board, and two internal planes of four layers of printed circuit board comprise a pair snakelike signal wire respectively, and often pair of snakelike signal wire comprises two signal input port ends and two signal outlet ends; 4 inlet ends are electrically connected with 4 rectangular pads on upper protection circuit plate bottom respectively one by one by hollow conductive post; 4 endpiece are electrically connected with other 4 rectangular pads on upper protection circuit plate bottom respectively one by one by hollow conductive post.
Snakelike signal wire be arranged so that under the prerequisite of installation relation not destroying protection circuit plate and keyboard mainboard, electrical connection between upper protection circuit plate and keyboard mainboard is invisible in outside, make the person of disassembling can only keep above-mentioned installation relation prerequisite under, upper protection circuit plate is successively disassembled, when after the electric connection point exposing snakelike signal wire and controller, need to connect corresponding signal level on corresponding electric connection point, then the snakelike signal wire of current layer is cleaned out, then the protection circuit of lower one deck is cracked again, finally out exposed for the key circuit on keyboard mainboard, make to disassemble difficulty to improve, extremely difficult being issued in the condition of not trigger controller self-destruction disassembles object.
As preferably, each second pad group includes at least 3 rectangular pads, second conductive rubber is rearranged by and the conductive rubber slice of mutually insulated identical with rectangular pads quantity, and the upper and lower end face of each conductive rubber slice contacts with each rectangular pads on lower protection circuit plate upper surface and keyboard mainboard lower surface respectively; Described lower protection circuit plate is provided with two snakelike signal wires; one end of two snakelike signal wires is electrically connected with 2 rectangular pads of lower protection circuit plate respectively by hollow conductive post, and the other end of two snakelike signal wires is electrically connected with 2 rectangular pads of keyboard mainboard lower surface respectively by hollow conductive post.
Two snakelike signal wires be arranged so that the prerequisite of installation relation of protection circuit plate and keyboard mainboard under not destroying under; electrical connection between lower protection circuit plate and keyboard mainboard is invisible in outside; make the person of disassembling can only keep above-mentioned installation relation prerequisite under; lower protection circuit plate is successively decomposed; make to disassemble difficulty to improve, extremely difficult being issued in the condition of not trigger controller self-destruction disassembles object.
As preferably, the live width≤6mil of described snakelike signal wire, distance between centers of tracks≤6mil, the signal level in two signal line of next-door neighbour is contrary.
The restriction of live width and distance between centers of tracks makes to hole to circuit board, cutting method is extremely difficult to the catch net overcoming snakelike signal wire and formed; circuit board is holed or one or more wiring broken string or short circuit that cutting can make in serpentine, thus trigger controller starts self-destruction program.
As preferably, the first conductive rubber block is rearranged by the conductive rubber slice of at least 8 mutually insulateds, and the upper and lower end face of each conductive rubber slice contacts with each rectangular pads on upper protection circuit plate lower surface and keyboard mainboard upper surface respectively.
As preferably, the lower surface of key panel comprises 4 studs, and 4 studs are connected with clamp nut through after button framework, silica gel pad, upper protection circuit plate, keyboard board successively; Keyboard bonnet is connected with keyboard board.
In sum: when circuit is stolen in the key circuit place installation that the person of disassembling attempts under the button of EPP keyboard, must disassemble upper protection circuit plate, to upper protection circuit plate disassemble protecting network that the snakelike signal wire that can destroy upper protection circuit intralamellar part formed or trigger hide in upper protection circuit plate and keyboard mainboard by the first conductive rubber and contact compression leg provide respectively to pressure-sensitive structure; When the person of disassembling attempts to disassemble from EPP keyboard bottom, the protection mechanism that lower protection circuit plate and the second conductive rubber provide can be triggered.All triggerings to protection mechanism; the self-destruction program of controller is independently caused in capital; EPP keyboard is made to enter down state; adopt the EPP keyboard of these protection mechanisms; have and higher disassemble difficulty and security, thus improve the security that ATM uses, improve the anti-attack ability of ATM (Automatic Teller Machine); reduce the risk that cardholder information is revealed and property is impaired, guarantee that in cardholder account, debt is not easily stolen.
Therefore, the present invention has following beneficial effect: it is large that (1) disassembles difficulty, and anti-attack ability is strong, and data security is good; (2) reduce the risk that cardholder information is revealed and property is impaired, guarantee that in cardholder account, debt is not easily stolen.
Accompanying drawing explanation
Fig. 1 is a kind of detonation configuration schematic diagram of the present invention;
Fig. 2 is another kind of detonation configuration schematic diagram of the present invention;
Fig. 3 is a kind of structural representation of snakelike signal wire of the present invention;
Fig. 4 is a kind of structural representation of upper protection circuit plate of the present invention;
Fig. 5 is a kind of structural representation of lower protection circuit plate of the present invention;
Fig. 6 is a kind of structural representation of keyboard mainboard of the present invention.
In figure: key panel 1, button framework 2, button 3, silica gel pad 4, upper protection circuit plate 5, keyboard board 6, keyboard mainboard 7, keyboard bonnet 8, projection 9, through hole 10, controller 13, key contacts 14, metal key-press reed 15, first pad group 16, first conductive rubber block 17, switch contact 18, metal switch reed 19, contact compression leg 20, positioning framework 21, lower protection circuit plate 22, over cap 23, second conductive rubber block 24, second pad group 25, elastic protrusion 26, USB interface 27, snakelike signal wire 28, hollow conductive post 29, rectangular pads 30, stud 31, clamp nut 32, conductive rubber limitting casing 33, fastening bolt 34, button conductive post 35, spacing hole 36, internal planes 37, battery 38.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment is as shown in Figure 1 the EPP keyboard that a kind of security is good, comprise from top to bottom set gradually key panel 1, button framework 2,16 buttons 3, silica gel pad 4, upper protection circuit plate 5, keyboard board 6, keyboard mainboard 7,20 button conductive post 35 and the keyboard bonnet 8 that removably connect with button framework; Silica gel pad is provided with the projection 9 matched with each button, upper protection circuit plate and the through hole 10 position corresponding with each projection on keyboard board is equipped with for installing button conductive post; The through hole of keyboard board is that the large ladder of lower inner diameter is poroid, and button conductive post bottom is provided with the baffle plate for being connected with shoulder hole bottom;
Keyboard mainboard lower surface is provided with controller 13, the metal key-press reed 15 being provided with key contacts 14 and matching with key contacts with each projection corresponding section of keyboard mainboard upper surface; The upper surface of each button conductive post contacts with corresponding protruding lower surface, and the lower surface of each button conductive post contacts with corresponding metal key-press reed upper surface;
Keyboard mainboard upper surface and upper protection circuit plate lower surface are equipped with the first pad group 16, and keyboard board is provided with the first conductive rubber block 17, first conductive rubber block upper and lower surface and contacts with the first pad group on upper protection circuit plate and keyboard mainboard respectively; Each key contacts and the first pad group are electrically connected with controller respectively; Snakelike signal wire in the present embodiment, pad, reed, contact and hollow conductive post all adopt copper product to make.
As shown in Figure 2, keyboard mainboard upper surface is also provided with 3 switch contacts 18 and 18 metal switch reeds 19; Keyboard board is provided with for extrusion metal switch spring and makes 3 contact compression legs 20 of metal switch reed and switch contact close contact; Each switch contact is all electrically connected with controller.
As shown in Figure 2, positioning framework 21, lower protection circuit plate 22 and over cap 23 is provided with between keyboard mainboard and keyboard bonnet from top to bottom successively; Positioning framework is provided with 2 the second conductive rubber blocks 24; lower protection circuit plate upper surface and keyboard mainboard lower surface are equipped with two corresponding the second pad groups 25; the upper and lower surface of the second conductive rubber block is electrically connected with the second pad group of keyboard mainboard lower surface, lower protection circuit plate respectively, and the second pad group is electrically connected with controller.
Fig. 1 and Fig. 2 forms complete explosive view of the present invention, being provided with the hole for placing conductive rubber limitting casing 33, first conductive rubber limitting casing 33 being put into hole, then the first conductive rubber is put into conductive rubber limitting casing in Fig. 1; Fastening bolt 34 is successively through keyboard mainboard, positioning framework, lower protection circuit plate and over cap; Keyboard mainboard, positioning framework, lower protection circuit plate and over cap are fixed up.Positioning framework is provided with for carrying out spacing spacing hole 36 to the second conductive rubber.
As shown in Figure 6, contact comprises rectangular conductive painting line and is positioned at the circular conductive coating in the middle part of rectangular conductive painting line; Upwards arch upward in the middle part of reed, reed edge is coated with line with the rectangular conductive of corresponding contact and is electrically connected.The figure of a figure to be the figure of keyboard mainboard upper surface, b figure be keyboard mainboard upper surface in Fig. 6.
Silica gel pad top surface edge is provided with 2 elastic protrusions 26, and the silica gel pad lower surface corresponding with 2 elastic protrusions is equipped with conductive coating, and 2 conductive coatings are all electrically connected with controller; The silica gel pad at elastic protrusion place and ATM squeeze flow; Controller is electrically connected with the USB interface 27 be located on keyboard mainboard.
The first pad group on keyboard mainboard upper surface and upper protection circuit plate lower surface all comprises 9 rectangular pads 30, and 9 rectangular pads on upper protection circuit plate are corresponding one by one with 9 rectangular pads of keyboard mainboard.
As shown in Figure 3, Figure 4, upper protection circuit plate is four layers of printed circuit board, two internal planes 37 of four layers of printed circuit board comprises respectively a pair snakelike signal wire 28, and often pair of snakelike signal wire comprises two signal input port ends and two signal outlet ends; 4 inlet ends are electrically connected with 4 rectangular pads on upper protection circuit plate bottom respectively one by one by hollow conductive post 29; 4 endpiece are electrically connected with other 4 rectangular pads on upper protection circuit plate bottom respectively one by one by hollow conductive post 29.
As shown in Figure 5, each second pad group includes 3 rectangular pads 30, second conductive rubber is rearranged by the conductive rubber slice of 3 mutually insulateds, and the upper and lower end face of 3 conductive rubber slices contacts with 3 rectangular pads on lower protection circuit plate upper surface and keyboard mainboard lower surface respectively; Lower protection circuit plate is provided with two snakelike signal wires; one end of two snakelike signal wires is electrically connected with 2 rectangular pads of lower protection circuit plate respectively by hollow conductive post, and the other end of two snakelike signal wires is electrically connected with 2 rectangular pads of keyboard mainboard lower surface respectively by hollow conductive post.
The live width of snakelike signal wire is 5mil, and distance between centers of tracks is 5mil, and the signal level in two signal line of next-door neighbour is contrary.
First conductive rubber block is rearranged by the conductive rubber slice of 9 mutually insulateds, and the upper and lower end face of 9 conductive rubber slices contacts with 9 rectangular pads on upper protection circuit plate lower surface and keyboard mainboard upper surface respectively.
The lower surface of key panel comprises 4 studs, 31,4 studs and is connected with clamp nut 32 through after button framework, silica gel pad, upper protection circuit plate, keyboard board successively; Keyboard bonnet is connected with keyboard board.
Should be understood that the present embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (10)
1. the EPP keyboard that a security is good, it is characterized in that, comprise the key panel (1), button framework (2), several buttons (3) with button framework removably connects, silica gel pad (4), upper protection circuit plate (5), keyboard board (6), keyboard mainboard (7), the button conductive post (35) identical with the quantity of button and the keyboard bonnet (8) that set gradually from top to bottom; Described silica gel pad is provided with several projections matched with each button (9), upper protection circuit plate and the through hole (10) position corresponding with each projection on keyboard board is equipped with for installing button conductive post; The through hole of described keyboard board is that the large ladder of lower inner diameter is poroid, and described button conductive post bottom is provided with the baffle plate for being connected with shoulder hole bottom;
Keyboard mainboard lower surface is provided with controller (13), the metal key-press reed (15) being provided with key contacts (14) and matching with key contacts with each projection corresponding section of keyboard mainboard upper surface; The upper surface of each button conductive post contacts with corresponding protruding lower surface, and the lower surface of each button conductive post contacts with corresponding metal key-press reed upper surface;
Keyboard mainboard upper surface and upper protection circuit plate lower surface are equipped with the first pad group (16), keyboard board is provided with the first conductive rubber block (17), and the first conductive rubber block upper and lower surface contacts with the first pad group on upper protection circuit plate and keyboard mainboard respectively; Each key contacts and the first pad group are electrically connected with controller respectively;
Keyboard mainboard upper surface is also provided with several switch contacts (18) and metal switch reed (19) that is identical with switch contact quantity and that be connected one by one with each switch contact; Keyboard board is provided with for extrusion metal switch spring and makes the contact compression leg (20) of metal switch reed and switch contact close contact; The quantity of contact compression leg is identical with the quantity of switch contact, and each switch contact is all electrically connected with controller.
2. the EPP keyboard that security according to claim 1 is good, is characterized in that, described switch contact and key contacts include rectangular conductive and be coated with line and be positioned at the circular conductive coating in the middle part of rectangular conductive painting line; All upwards arch upward in the middle part of described metal switch reed and metal key-press reed, metal switch reed edge is coated with line with the rectangular conductive of corresponding switch contact and is electrically connected, and metal key-press reed edge is coated with line with the rectangular conductive of corresponding key contacts and is electrically connected.
3. the EPP keyboard that a kind of security according to claim 1 is good, it is characterized in that, between described keyboard mainboard and keyboard bonnet, be provided with positioning framework (21), lower protection circuit plate (22) and over cap (23) from top to bottom successively; Described positioning framework is provided with 2 the second conductive rubber blocks (24); lower protection circuit plate upper surface is provided with 2 the second pad groups (25); keyboard mainboard lower surface is provided with the second pad group of lower protection circuit plate in corresponding two the second pad groups; the upper and lower surface of the second conductive rubber block is electrically connected with the second pad group of keyboard mainboard lower surface, lower protection circuit plate respectively, and the second pad group is electrically connected with controller.
4. the EPP keyboard that a kind of security according to claim 1 is good, it is characterized in that, described silica gel pad top surface edge is provided with 2 elastic protrusions (26), the silica gel pad lower surface corresponding with 2 elastic protrusions is equipped with conductive coating, and 2 conductive coatings are all electrically connected with controller; The silica gel pad at elastic protrusion place and ATM squeeze flow; Controller is electrically connected with the USB interface be located on keyboard mainboard (27).
5. the EPP keyboard that a kind of security according to claim 1 is good; it is characterized in that; the first pad group on keyboard mainboard upper surface and upper protection circuit plate lower surface all comprises at least 8 rectangular pads (30), and each rectangular pads on upper protection circuit plate is corresponding one by one with each rectangular pads of keyboard mainboard.
6. the EPP keyboard that a kind of security according to claim 5 is good, it is characterized in that, described upper protection circuit plate is four layers of printed circuit board, two internal planes (37) of four layers of printed circuit board comprise a pair snakelike signal wire (28) respectively, and often pair of snakelike signal wire comprises two signal input port ends and two signal outlet ends; 4 inlet ends are electrically connected with 4 rectangular pads on upper protection circuit plate bottom respectively one by one by hollow conductive post (29); 4 endpiece are electrically connected with other 4 rectangular pads on upper protection circuit plate bottom respectively one by one by hollow conductive post (29).
7. the EPP keyboard that a kind of security according to claim 3 is good, it is characterized in that, each second pad group includes at least 3 rectangular pads (30), second conductive rubber is rearranged by and the conductive rubber slice of mutually insulated identical with rectangular pads quantity, and the upper and lower end face of each conductive rubber slice contacts with each rectangular pads on lower protection circuit plate upper surface and keyboard mainboard lower surface respectively; Described lower protection circuit plate is provided with two snakelike signal wires; one end of two snakelike signal wires is electrically connected with 2 rectangular pads of lower protection circuit plate respectively by hollow conductive post, and the other end of two snakelike signal wires is electrically connected with 2 rectangular pads of keyboard mainboard lower surface respectively by hollow conductive post.
8. the EPP keyboard that a kind of security according to claim 6 or 7 is good, is characterized in that, the live width≤6mil of described snakelike signal wire, distance between centers of tracks≤6mil, and the signal level in two signal line of next-door neighbour is contrary.
9. the EPP keyboard that a kind of security according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 is good; it is characterized in that; first conductive rubber block is rearranged by the conductive rubber slice of at least 8 mutually insulateds, and the upper and lower end face of each conductive rubber slice contacts with each rectangular pads on upper protection circuit plate lower surface and keyboard mainboard upper surface respectively.
10. the EPP keyboard that a kind of security according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 is good, it is characterized in that, the lower surface of key panel comprises 4 studs (31), and 4 studs are connected with clamp nut (32) through after button framework, silica gel pad, upper protection circuit plate, keyboard board successively; Keyboard bonnet is connected with keyboard board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410032396.8A CN103942892B (en) | 2014-01-23 | 2014-01-23 | The EPP keyboard that a kind of security is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410032396.8A CN103942892B (en) | 2014-01-23 | 2014-01-23 | The EPP keyboard that a kind of security is good |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103942892A CN103942892A (en) | 2014-07-23 |
| CN103942892B true CN103942892B (en) | 2016-03-09 |
Family
ID=51190540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410032396.8A Active CN103942892B (en) | 2014-01-23 | 2014-01-23 | The EPP keyboard that a kind of security is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103942892B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104537761B (en) * | 2015-01-06 | 2017-06-16 | 广州御银科技股份有限公司 | A kind of code keypad with multi-level safety protection mechanism |
| WO2019161616A1 (en) * | 2018-02-26 | 2019-08-29 | 深圳市瑞网科技有限公司 | Modular keyboard |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667064A (en) * | 2009-07-10 | 2010-03-10 | 深圳市九思泰达技术有限公司 | Anti-peer and anti-stealing safety keyboard |
| CN101697182A (en) * | 2009-09-29 | 2010-04-21 | 广州广电运通金融电子股份有限公司 | Encryption keyboard |
| GB2491514A (en) * | 2010-11-25 | 2012-12-05 | Ensygnia Ltd | Handling encoded information and identifying user |
| CN202771533U (en) * | 2012-08-06 | 2013-03-06 | 深圳市新达通科技股份有限公司 | Encryption keyboard and self-service device utilizing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPQ487399A0 (en) * | 1999-12-24 | 2000-02-03 | Vfj Technology Pty Limited | Method and system for secure contactless card applications |
-
2014
- 2014-01-23 CN CN201410032396.8A patent/CN103942892B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667064A (en) * | 2009-07-10 | 2010-03-10 | 深圳市九思泰达技术有限公司 | Anti-peer and anti-stealing safety keyboard |
| CN101697182A (en) * | 2009-09-29 | 2010-04-21 | 广州广电运通金融电子股份有限公司 | Encryption keyboard |
| GB2491514A (en) * | 2010-11-25 | 2012-12-05 | Ensygnia Ltd | Handling encoded information and identifying user |
| CN202771533U (en) * | 2012-08-06 | 2013-03-06 | 深圳市新达通科技股份有限公司 | Encryption keyboard and self-service device utilizing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103942892A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105072220B (en) | Electronic equipment and key-press mounting structure | |
| CN106781116B (en) | Intelligent POS terminal core area protection structure | |
| CN103942892B (en) | The EPP keyboard that a kind of security is good | |
| CN103617908B (en) | The keyboard safety protection device of payment terminal and method | |
| CN103914935A (en) | Electronic device | |
| CN103942875B (en) | ATM keyboard | |
| CN103942891B (en) | Epp keyboard | |
| CN204129870U (en) | A kind of circulator EPP keyboard | |
| CN103942890B (en) | The EPP keyboard that a kind of security performance is good | |
| CN205656720U (en) | Anti -disassembly financial terminal | |
| CN207601797U (en) | Anti- telephone-moving safety keyboard | |
| CN103942893B (en) | The EPP keyboard that security performance is good | |
| CN103942894B (en) | The ATM user keyboard that a kind of security is good | |
| CN103942877B (en) | ATM user's keyboard | |
| CN209168326U (en) | Breaking-proof switch connection structure and POS machine | |
| CN214846987U (en) | Finance terminal | |
| CA2930679C (en) | Secured compact keyboard | |
| CN204883931U (en) | Prevent to carry out safety arrangement that steals secret information through button on mainboard contact | |
| CN103942876B (en) | A kind of ATM keyboard | |
| CN205230215U (en) | Prevent invading POS machine | |
| CN210668182U (en) | Key protection film and keyboard | |
| CN202134055U (en) | Microswitch type safety cover of self-service bank password keyboard | |
| CN209168317U (en) | Lid shell Anti-dismounting structure and POS machine | |
| CN207601746U (en) | Safety keyboard and its resilient sleeper-bearing | |
| CN205159169U (en) | Novel physics keyboard safety protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210825 Address after: 310000 No. 66 Dongxin Avenue, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: EASTCOM Inc. Address before: 310000 A318, R & D building, Dongxin City, No. 66, Dongxin Avenue, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: EASTCOM Inc. Patentee before: Hangzhou Eastcom Financial Technology Service Co.,Ltd. |