CN207676438U - Safety input keyboard and mainboard protection board - Google Patents

Abstract

The utility model provides a kind of input keyboard and mainboard protection board safely; the mainboard protection board includes for being located between metal backing and mainboard and coordinating the plate body being placed on mainboard; the edge protrusion of plate body is equipped with the fin for supporting board edges; the accommodation chamber for housing element on mainboard is formed between fin and plate body, and several through-holes for being passed through for the screw rod on panel are offered on plate body.The utility model is by being arranged plate body; and the through-hole passed through for screw rod on panel is opened up on plate body; and fin is set on plate body; make to form the accommodation chamber for housing element on mainboard between plate body and fin; in this way when the screw rod on panel passes through metal backing, plate body and mainboard; and when mainboard is fixed on screw rod; plate body can support metal backing; and the fin on plate body can support mainboard; and then protection mainboard is played, mainboard is directly anchored on the screw rod on panel by realization, and it is not necessary that screw rod is arranged on metal backing; it is easy to assembly, while simplifying structure.

Description

Safety input keyboard and mainboard protection board

Technical field

The utility model belongs to financial transaction field, is to be related to a kind of mainboard protection board and use the master more specifically The safety input keyboard of plate protection board.

Background technology

Finance self-help terminal, such as automatic teller machine, fuel charger equipment generally require setting keyboard and carry out input operation.Keyboard one As include equipped with the panel of button, the resilient sleeper-bearing for flexibly supporting each button, the circuit board with golden finger, metal dome, metal Backboard, mainboard and shell；Metal dome is installed on circuit boards, and metal backing is mounted on the back side of circuit board, panel and circuit board It is held on resilient sleeper-bearing, circuit board is electrical connected with mainboard, and mainboard is installed in the shell, and jacket is on metal backing.Panel The back side screw rod can be generally set, and resilient sleeper-bearing, circuit board and metal backing are passed through by screw rod, to fix cushion Plate, circuit board and metal backing, and screw rod and pillar are set on metal backing, to support mainboard, and it is fixedly linked with shell. Cause the keyboard structure complicated, assembling is inconvenient.

Utility model content

The purpose of this utility model is to provide a kind of safety input keyboard and mainboard protection boards, to solve in the prior art Existing keyboard structure is complicated, assembles inconvenient problem.

To achieve the above object, the technical solution adopted in the utility model is：A kind of mainboard protection board is provided, including is used for It is located between metal backing and mainboard and coordinate the plate body being placed on the mainboard, the edge protrusion of the plate body to be equipped with for supporting The fin of the board edges is held, is formed between the fin and the plate body for housing the accommodating of element on the mainboard Room offers several through-holes for being passed through for the screw rod on panel on the plate body.

Further, the edge of the plate body is equipped with the grab for buckling the board edges.

Further, the fin is around the plate body.

Further, it is convexly equipped on the plate body several for coordinating the positioning column for positioning the mainboard.

Further, it is convexly equipped with annular sleeve, the annular sleeve and institute respectively in the edge of each through-hole on the plate body State the same face that fin is located at the plate body.

Further, the quadrangle of the plate body is respectively equipped with recessed groove.

Further, the plate body and the fin are integrated injection moldings.

The another object of the utility model is to provide a kind of safety input keyboard, includes panel equipped with button, is used for Flexibly support the resilient sleeper-bearing of each button, the circuit board with golden finger, the pot son being installed on the circuit board The mainboard and cover in the metal back of the body that piece, the metal backing for being installed on the back of circuit board and the circuit board are electrical connected Shell on plate；The resilient sleeper-bearing is clamped in the panel and the circuit board, and the back side of the panel is equipped with screw rod, the bullet Property backing plate on it is corresponding offer the first mounting hole passed through for the screw rod, it is corresponding on the circuit board to offer for the screw rod The second mounting hole passed through, it is corresponding on the metal backing to offer the third mounting hole passed through for the screw rod, the mainboard Upper correspondence offers the 4th mounting hole passed through for the screw rod, corresponding on the shell to offer the passed through for the screw rod Five mounting holes are additionally provided with mainboard protection board as described above between the metal backing and the mainboard.

Further, further include the zebra item for being electrically connected the circuit board and the mainboard, correspond to and open on the plate body It is corresponding on the metal backing to offer second passed through for the zebra item equipped with the first opening passed through for the zebra item Opening.

Further, the position that first opening is corresponded on the plate body is equipped with the guarantor that cooperation houses the zebra item Protect frame.

The advantageous effect of safety input keyboard and mainboard protection board provided by the utility model is：With prior art phase Than the utility model opens up the through-hole passed through for screw rod on panel by the way that plate body is arranged on plate body, and is arranged on plate body Fin, make between plate body and fin formed house mainboard on element accommodation chamber, in this way when the screw rod on panel pass through metal backing, Plate body and mainboard, and when mainboard is fixed on screw rod, plate body can support metal backing, and the fin on plate body can support master Plate, and then protection mainboard is played, mainboard is directly anchored on the screw rod on panel by realization, and without being arranged on metal backing Screw rod, it is easy to assembly, while simplifying structure.

Description of the drawings

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with Obtain other attached drawings according to these attached drawings.

Fig. 1 is the structural schematic diagram for the safety input keyboard that the utility model embodiment provides；

The schematic cross-sectional view for the safety input keyboard that Fig. 2 is Fig. 1；

Fig. 3 is structural schematic diagram when mainboard protection board is combined with mainboard in Fig. 1；

Fig. 4 is the structural schematic diagram one when mainboard protection board is decomposed with mainboard in Fig. 1；

Fig. 5 is the structural schematic diagram two when mainboard protection board is decomposed with mainboard in Fig. 1.

Wherein, each attached drawing main mark in figure：

100- inputs safely keyboard；10- panels；11- buttons；12- screw rods；13- mounting posts；14- fastening nuts；15- is solid Determine nut；20- resilient sleeper-bearings；30- circuit boards；40- metal backings；50- mainboards；The second mounting holes of 51-；53- zebra items；54- PCB walls；56- conduction compression legs；60- mainboard protection boards；601- accommodation chambers；61- plate bodys；611- positioning columns；62- fins；63- cards Hook；64- through-holes；65- annular sleeves；66- first is open；67- protecting frames；68- impenetrating mouths；69- recessed grooves；70- shells.

Specific implementation mode

In order to make technical problem to be solved in the utility model, technical solution and advantageous effect be more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another On one element or it is connected on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the description of the present invention, it should be understood that term "center", " length ", " width ", " thickness ", The orientation of the instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" or Position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, It does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation, because This should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the interaction relationship of the connection or two elements inside two elements.For those of ordinary skill in the art and Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.

Safety chip：A kind of safe processor (also known as safe CPU) with security mechanism, for protecting user information to pacify Entirely, when safety chip detects rogue attacks, security mechanism can be triggered, wipes key and other sensitive informations.

Signal lead is (also known as：Tamper signal wires either line trigger signal or Tamper cablings) it is a kind of safety Processor (safety chip or safe CPU) can detect the signal wire of its level change, when CPU detects the level on the signal wire When inconsistent with setting level value, CPU will trigger security mechanism, wipe key and other sensitive informations.In addition, when Tamper believes When high level end (VBAT) short circuit that number line is powered with ground terminal (GND) or button cell, safe CPU will be made to enter triggering shape State, the sensitive information in erasing apparatus.And the level signal in signal lead is known as Tamper signals or trigger signal.

Sensitive signal：Push button signalling, card-to-card communication signal, data exchange signal etc. need shielded signal.

Breaking-proof switch (is also known as Anti-dismantling switch either contact switch or anti-moving except switch contact)：Two termination letter of one kind Number cabling is (also known as：Tamper signal wires or line trigger signal) switch, once switch disconnect, safety chip will detect To level change, and security mechanism is triggered, wipes key and other sensitive informations.

Mesh coilings (also known as Mesh cablings)：Refer to the independent coiling of Tamper signal wires or two or more quantity The mutual coiling of Tamper signal wires, that is, the coiling formed.Tamper signal wires can be coiled into the setting of latticed or parallel interval The shapes such as multiple strips or line round.

PCB walls：Refer to a kind of wall of the circuit board making of band Mesh coilings, can be cross wall, straight wall or other shapes, Such as frame-shaped or annular shape.PCB Chineses are：Printed circuit board.

Also referring to Fig. 1 to Fig. 5, the safety that the utility model embodiment provides inputs keyboard 100.The safe enter key Disk 100 include panel 10, resilient sleeper-bearing 20, circuit board 30, metal dome (not marked in figure), metal backing 40, mainboard protection board 60, mainboard 50 and shell 70；Several golden finger (not shown) are provided on circuit board 30, panel 10 is equipped with button 11, circuit Metal dome is installed corresponding to the position of each golden finger on plate 30, resilient sleeper-bearing 20, cushion is clamped in panel 10 and circuit board 30 Plate 20 is for flexibly supporting each button 11, when to pressing keys 11, can compress the golden finger on metal dome contact circuit board 30, To carry out input operation；And when unclamping button 11, resilient sleeper-bearing 20 rebounds button 11, corresponding metal dome and golden finger point From.Circuit board 30 is electrical connected with mainboard 50.

The back side of panel 10 is equipped with screw rod 12, and the first installation for offering and being passed through for screw rod 12 is corresponded on resilient sleeper-bearing 20 Hole, corresponding on circuit board 30 to offer the second mounting hole 51 passed through for screw rod 12, correspondence is offered for spiral shell on metal backing 40 The third mounting hole that bar 12 passes through, it is corresponding on mainboard 50 to offer the 4th mounting hole passed through for screw rod 12, it is corresponding on shell 70 Offer the 5th mounting hole passed through for screw rod 12.

Mainboard protection board 60 includes plate body 61, and when in use, plate body 61 is used to be located between metal backing 40 and mainboard 50, And the cooperation of plate body 61 is placed on mainboard 50.The edge protrusion of plate body 61 is equipped with fin 62, to which plate body 61 is being mounted on master When on plate 50, fin 62 supports 50 edge of mainboard, and then makes to be formed between fin 62 and plate body 61 first on mainboard 50 for housing The accommodation chamber 601 of part, to play the role of protecting electronic component on mainboard 50.It is offered on plate body 61 several for for panel 10 On the through-hole 64 that passes through of screw rod 12.

In assembling, the screw rod 12 at 10 back side of panel can be sequentially passed through to the first mounting hole, the electricity on resilient sleeper-bearing 20 The second mounting hole 51 on road plate 30, the third mounting hole on metal backing 40, the through-hole 64 on plate body 61, on mainboard 50 The 5th mounting hole on four mounting holes and shell 70 reuses the fixation of fastening nut 14, to complete to assemble, when assembling, and plate body 61 Metal backing 40 can be supported, and the fin 62 on plate body 61 can support the edge of mainboard 50, to prevent metal backing 40 direct Mainboard 50 is contacted, it is easy to assembly to protect the electronic component on mainboard 50.

Safety input keyboard 100 and mainboard protection board 60 provided by the utility model, compared with prior art, this practicality is new Type opens up the through-hole 64 passed through for screw rod 12 on panel 10 by the way that plate body 61 is arranged on plate body 61, and is set on plate body 61 Fin 62 is set, makes to form the accommodation chamber 601 for housing element on mainboard 50 between plate body 61 and fin 62, in this way when the spiral shell on panel 10 Bar 12 passes through metal backing 40, plate body 61 and mainboard 50, and when mainboard 50 is fixed on screw rod 12, and plate body 61 can support gold Belong to backboard 40, and the fin 62 on plate body 61 can support mainboard 50, and then protection mainboard 50 is played, it realizes mainboard 50 is directly solid It is easy to assembly on fixed screw rod 12 on the faceplate 10, and it is not necessary that screw rod 12 is arranged on metal backing 40, while simplifying structure.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode, the edge of plate body 61 are equipped with the grab 63 for buckling 50 edge of mainboard.At the edge of plate body 61, card is set Hook 63 can make fin 62 support the one side of mainboard 50 in assembling, and grab 63 hooks the another side of mainboard 50, with convenient Plate body 61 and mainboard 50 are fixedly linked, play the role of protecting mainboard 50, while ease of assembly is fixed.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode, fin 62 is around plate body 61.By fin 62 around plate body 61, make the edge uniform force of mainboard 50, it can be with Preferably protection mainboard 50.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode is convexly equipped on plate body 61 several for coordinate the positioning columns 611 for positioning mainboard 50.Setting positions, and is inciting somebody to action When plate body 61 is fixedly linked with mainboard 50, positioning action can be played.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode is convexly equipped with annular sleeve 65 on plate body 61 respectively in the edge of each through-hole 64, and annular sleeve 65 is located at fin 62 The same face of plate body 61.Annular sleeve 65, when fastening nut 14 to be locked on screw rod 12, annular sleeve 65 are set on plate body 61 Mainboard 50 can be supported, preferably to play a supporting role, prevents from damaging mainboard 50 by pressure.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model The quadrangle of specific implementation mode, plate body 61 is respectively equipped with recessed groove 69.Recessed groove 69 is respectively set in the quadrangle of plate body 61, it can be with 40 4 jiaos of metal backing is avoided, and then convenient for input keyboard 100 is mounted on the body of metal self-aided terminal safely by this.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode, plate body 61 and fin 62 are integrated injection moldings.Using integrated through injection molding injection molding, processing and fabricating is convenient, It is at low cost.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode, it further includes the zebra item 53 for being electrically connected circuit board 30 and mainboard 50 that safety, which inputs keyboard 100, on plate body 61 It is corresponding to offer the first opening 66 passed through for zebra item 53, it is corresponding on metal backing 40 to offer the passed through for zebra article 53 Two openings.Circuit board 30 and mainboard 50 are electrical connected using zebra item 53, it is easy to connect, while circuit board 30 and zebra item Can be formed between 53 and zebra item 53 and mainboard 50 it is anti-moving remove construction of switch, preferably prevent from illegally dismantling.Further Data line and signal wire can be arranged in zebra item 53 in ground, so that communication data and safety level signal are from zebra item 53 Pass through, to improve safety.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode, the position that the first opening 66 is corresponded on plate body 61 are equipped with the protecting frame 67 that cooperation houses zebra item 53.If Protecting frame 67 is set, zebra item 53 can be preferably protected, while can also play the role of supporting zebra item 53, makes zebra item 53 Installation is more firm.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model Specific implementation mode is additionally provided with the PCB walls 54 for protecting zebra item 53 on mainboard 50, and correspondence offers confession on plate body 61 The impenetrating mouth 68 that PCB walls 54 pass through.PCB walls 54 are set, preferably to protect zebra item 53, improve safety.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model The back side of specific implementation mode, mainboard 50 is equipped with contact switch, and the conductive compression leg for compressing contact switch is equipped in shell 70 56.The structural device can prevent from illegally dismantling shell 70.

Further, also referring to Fig. 3 to Fig. 5, one kind as safety input keyboard 100 provided by the utility model The back side of specific implementation mode, panel 10 is additionally provided with mounting post 13, and mounting post 13 passes through resilient sleeper-bearing 20, circuit board 30 and metal Backboard 40 is locked with by fixing nut 15, to clamp resilient sleeper-bearing 20, and then ease of assembly.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model Protection domain within.

Claims (10)

1. mainboard protection board, which is characterized in that be placed on the mainboard including being used to be located between metal backing and mainboard and coordinate On plate body, the edge protrusion of the plate body is equipped with fin for supporting the board edges, the fin and the plate body Between form accommodation chamber for housing element on the mainboard, offered on the plate body several for for the screw rod on panel The through-hole passed through.

2. mainboard protection board as described in claim 1, it is characterised in that：The edge of the plate body is equipped with for buckling the master The grab of edges of boards edge.

3. mainboard protection board as described in claim 1, it is characterised in that：The fin is around the plate body.

4. mainboard protection board as described in claim 1, it is characterised in that：It is convexly equipped on the plate body several for coordinating positioning The positioning column of the mainboard.

5. mainboard protection board as described in claim 1, it is characterised in that：Distinguish in the edge of each through-hole on the plate body It is convexly equipped with annular sleeve, the annular sleeve is located at the same face of the plate body with the fin.

6. mainboard protection board as described in claim 1, it is characterised in that：The quadrangle of the plate body is respectively equipped with recessed groove.

7. mainboard protection board as claimed in any one of claims 1 to 6, it is characterised in that：The plate body is one with the fin Injection molding.

8. safety input keyboard, includes the panel equipped with button, the resilient sleeper-bearing for flexibly supporting each button, has gold The circuit board of finger, the metal dome being installed on the circuit board, the metal backing for being installed on the back of circuit board, with it is described The mainboard and cover in the shell on the metal backing that circuit board is electrical connected；The bullet is clamped in the panel and the circuit board Property backing plate, the back side of the panel is equipped with screw rod, corresponding on the resilient sleeper-bearing to offer the first peace passed through for the screw rod Hole is filled, the second mounting hole for offering and being passed through for the screw rod is corresponded on the circuit board, correspondence opens up on the metal backing There is the third mounting hole passed through for the screw rod, the 4th mounting hole for offering and being passed through for the screw rod corresponded on the mainboard, It is corresponding on the shell to offer the 5th mounting hole passed through for the screw rod, it is characterised in that：The metal backing with it is described It is additionally provided between mainboard such as claim 1-7 any one of them mainboard protection boards.

9. safety input keyboard as claimed in claim 8, it is characterised in that：Further include be electrically connected the circuit board with it is described The zebra item of mainboard, it is corresponding on the plate body to offer the first opening passed through for the zebra item, it is right on the metal backing The second opening passed through for the zebra item should be offered.

10. safety input keyboard as claimed in claim 9, it is characterised in that：Correspond to described first on the plate body to be open Position be equipped with cooperation house the zebra item protecting frame.