CN207302942U - Keypad security Anti-dismounting structure and the POS machine with the structure - Google Patents

Abstract

The utility model belongs to the technical field of safety protection of electronic equipment, aim to provide a kind of keypad security Anti-dismounting structure and the POS machine with the structure, in the utility model, the keypad security Anti-dismounting structure is by extending to the breaking-proof switch auricle of its positive bending in the side wall of flexible PCB, wherein, metal dome is folded on the front of flexible PCB by breaking-proof switch auricle, when assembling pressing stent, can be disposably by key mapping layer, breaking-proof switch auricle, metal dome and flexible PCB are sequentially fixed on the back side of face-piece, therefore this is simple and compact for structure, it is easily installed, because breaking-proof switch auricle is located at the periphery of the key area of flexible PCB, key mapping layer can directly touch metal dome, therefore press sense is stronger；Because breaking-proof switch auricle is electrically connected to flexible PCB, once and the structure is opened, breaking-proof switch auricle will immediately disconnecting circuit connect so that trigger associated safety mechanism erasing circuit intralamellar part storage hypersensitivity data message, realize function of safety protection.

Description

Keypad security Anti-dismounting structure and the POS machine with the structure

Technical field

The utility model belongs to the technical field of safety protection of electronic equipment, is to be related to a kind of keyboard peace more specifically Full Anti-dismounting structure and the POS machine with the structure.

Background technology

In financial field, can generally the electronic equipments such as POS machine, code keyboard, ATM machine be used to be traded, for convenience Operation, it will usually set keyboard to input the data message of user on these electronic equipments, because of the bank card for inputting or storing Number, the data message such as password, registration code belong to hypersensitivity information, thus need to protect it, prevent without permission Usurped in the case of license by attack.

Currently, matrix safety keyboard general in Electronic Finance equipment generally comprises the pcb board equipped with golden finger, for Corresponding golden finger cooperatively forms the metal dome of switch, the mesh to shield layers and the button for pressing, wherein, mesh Layer is a kind of protective layer equipped with intensive cabling, protects key area by detection signal, prevents the Gao Min of pcb board memory storage Therefore perceptual data, are both needed to possess tamper function, however, existing anti-by malicious attack in the keyboard of general finance device Tear structure open, one layer mesh layer are laminated on whole pcb board, there are safety keyboard installation is inconvenient, overall structure is more complicated and button The defects of not strong to the press sense of metal dome.

Utility model content

The purpose of this utility model is to provide a kind of keypad security Anti-dismounting structure, to solve safety-key in the prior art Disk is to possess tamper function to have installation inconvenience, the technical problem that overall structure is more complicated and press sense is not strong.

In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of keypad security tamper knot is provided Structure, which includes face-piece and front is placed with the key mapping layer of multiple buttons, further includes in key area and sets Have the flexible PCBs of multiple golden fingers, the metal dome equipped with multiple key mappings and to by the key mapping layer, the metal dome, Sequentially disposably the stent on the back side of the face-piece, each button, each key are fixed in pressing to the flexible PCB Position and each golden finger sequentially correspond；Extend the oriented flexible PCB on the side wall of the flexible PCB just The metal dome, can be folded on the front of the flexible PCB, be electrically connected to the flexible PCB and position by face bending In the periphery of the key area preventing flexible PCB breaking-proof switch auricle under attack.

Further, the periphery of the key area on the flexible PCB is equipped with least one first anti-triggering knot Structure, the inner wall of the breaking-proof switch auricle are equipped with least one second anti-trigger architecture, each second anti-trigger architecture pressure Close and be electrically connected to the corresponding first anti-trigger architecture.

Further, the key mapping layer is equipped with least one pressing protrusion, and each pressing protrusion is connected to corresponding The breaking-proof switch auricle, and corresponded with each second anti-trigger architecture.

Specifically, the described first anti-trigger architecture, the second anti-trigger architecture and the pressing protrusion are equipped with two.

Further, be convexly equipped with least one positioning protrusion on the front of the stent, the flexible PCB it is described The periphery of key area offers at least one first location hole, is offered in the metal dome and each first location hole pair At least one second location hole answered, offers and each second location hole corresponding at least one on the breaking-proof switch auricle A 3rd location hole, each positioning protrusion are sequentially inserted in corresponding first location hole, second location hole and institute State in the 3rd location hole.

Specifically, first location hole, second location hole, the 3rd location hole and the positioning protrusion are all provided with There are two.

Further, offer on the key mapping layer and positioned with each 3rd location hole the corresponding at least one 4th Hole, each positioning protrusion are inserted in corresponding 4th location hole.

Specifically, the 4th location hole and the positioning protrusion are equipped with two.

Further, 1 breaking-proof switch auricle has been each extended on the two side of the flexible PCB, described in two Breaking-proof switch auricle is just opposite and size is identical.

Compared with prior art, the beneficial effect of keypad security Anti-dismounting structure provided by the utility model is：

The keypad security Anti-dismounting structure on the side wall of flexible PCB by extending to the breaking-proof switch of its positive bending Auricle, wherein, metal dome is folded on the front of flexible PCB by breaking-proof switch auricle, and is pressed by the assembling to stent Key mapping layer, breaking-proof switch auricle, metal dome and flexible PCB, can disposably sequentially be fixed on the back side of face-piece by pressure, Obviously, the simple and compact for structure and convenient installation；Because breaking-proof switch auricle is located at the periphery of the key area of flexible PCB, because And saving mesh layers existing, key mapping layer can directly touch metal dome, therefore, press sense is stronger；In addition, because of breaking-proof switch ear Piece is electrically connected to flexible PCB, once and the structure is opened, breaking-proof switch auricle will immediately with flexible PCB disconnect electricity Road connects, so as to trigger the hypersensitivity data message of associated safety mechanism erasing circuit intralamellar part storage, realizes security protection Function.

The purpose of this utility model additionally provides a kind of POS machine, to solve the keyboard of POS machine existing in the prior art Security performance is not high, or the technical problem that keyboard installation is inconvenient, complicated integral structure and press sense be not strong.To solve above-mentioned skill Art problem, the technical solution adopted in the utility model are：A kind of POS machine is provided, which includes above-mentioned keypad security tamper Structure.

Compared with prior art, the beneficial effect of POS machine provided by the utility model is：The POS machine is by using upper The keypad security Anti-dismounting structure stated, the overall structure of its keyboard is fairly simple, easy for installation, press sense is strong and security performance also compared with It is high.

Brief description of the drawings

, 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 is briefly described needed in description, it should be apparent that, drawings in the following description are only that this practicality is new Some embodiments of type, for those of ordinary skill in the art, without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.

Fig. 1 is the dimensional structure diagram of keypad security Anti-dismounting structure in the utility model embodiment；

Fig. 2 is exploded perspective schematic diagram when keypad security Anti-dismounting structure is just put in the utility model embodiment；

Fig. 3 is exploded perspective schematic diagram when keypad security Anti-dismounting structure is put upside down in the utility model embodiment；

Fig. 4 is the sectional view of a certain section of keypad security Anti-dismounting structure in the utility model embodiment；

Fig. 5 is the partial enlarged view at A in Fig. 4；

Fig. 6 is the dimensional structure diagram of flexible PCB in Fig. 2；

Fig. 7 is the planar structure schematic diagram after flexible PCB extension in Fig. 6.

Wherein, the label in attached drawing is as follows：

100- face-pieces, 110- avoid holes, 200- key mappings layer, 210- buttons, 220- pressings protrusion, the 4th location holes of 230-；

300- flexible PCBs, 310- substrates, 311- key areas, 3111- golden fingers, the first anti-trigger architectures of 312-, The first location holes of 313-；

400- metal domes, 410- key mappings, the second location holes of 420-；500- stents, 510- positioning protrusion；

600- breaking-proof switch auricle, the second anti-trigger architectures of 610-, the 3rd location holes of 620-.

Embodiment

In order to which the technical problem to be solved, technical solution and advantage of the utility model is more clearly understood, below With reference to accompanying drawings and embodiments, the utility model is further elaborated.It should be appreciated that specific implementation described herein Example only to explain the utility model, is not used to limit the utility model.

It should be noted that when component is referred to as " being fixed on " or " being arranged at " another component, it can be directly another On a component or it is connected on another component.When a component is known as " being connected to " another component, it can be with It is directly to another component or is indirectly connected on another component.

It should be noted that in the attached drawing of the utility model embodiment the same or similar label correspond to it is the same or similar Component；In the description of the utility model, it is to be understood that if there is the side of the instructions such as term " on ", " under ", "left", "right" Position or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplification is retouched State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation, Therefore, the terms describing the positional relationship in the drawings are only for illustration, it is impossible to the limitation to this patent is interpreted as, for this For the those of ordinary skill in field, the concrete meaning of above-mentioned term can be understood as the case may be.

In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the utility model, " multiple " be meant that two or two with On, unless otherwise specifically defined.

Carried out below in conjunction with realization of the specific attached drawing to a kind of keypad security Anti-dismounting structure provided by the utility model detailed Ground describes.

It should be noted that the keypad security Anti-dismounting structure is mainly used for the financial fields such as POS machine, code keyboard, ATM machine In electronic equipment, certainly, in practical applications, it may also be used in other suitable equipment.Compared with prior art, which pacifies Full Anti-dismounting structure, saves traditional mesh protective layers, there is provided a kind of new structure with safe tamper, and it is overall On, simple in structure, easy for installation, press sense is good compared with strong and security protection performance.

As shown in Figures 1 to 5, which includes face-piece 100, key mapping layer 200, metal dome 400, flexibility Circuit board 300 (Flexible Printed Circuit, abbreviation FPC plate) and stent 500, wherein, as shown in Fig. 2, face-piece 100 On be opened in multiple avoid holes 110, as shown in Figure 4 and Figure 5, the front of key mapping layer 200 is placed with multiple buttons 210, in general, respectively Button 210 corresponds to each avoid holes 110, and protrudes from face-piece 100 from corresponding avoid holes 110 with user-friendly.When So, to realize keypress function, multiple golden hands are equipped with as shown in Fig. 2, Fig. 6 and Fig. 7, in the key area 311 of flexible PCB 300 Refer to 3111, metal dome 400 is equipped with multiple key mappings 410, in general, each key mapping 410 corresponds to each golden finger 3111 to realize button 210 switching function.It is to be appreciated that each button 210, each key mapping 410 and each golden finger 3111 sequentially correspond.

As shown in Fig. 2, Fig. 4 to Fig. 7, to ensure that the keypad security Anti-dismounting structure has function of safety protection, flexible circuit Breaking-proof switch auricle 600 is extended with the side wall of plate 300, it is possible to understand that ground, breaking-proof switch auricle 600 can be from flexible PCBs Extend on 300 left side wall and/or right side wall.Certainly, breaking-proof switch auricle 600 can also be under flexible PCB 300 Extend on side wall, particularly an only breaking-proof switch auricle 600 when.Specifically in the present embodiment, to ensure to be electrically connected Stability and improve security protection performance, each extended over 1 on the two side of flexible PCB 300 such as left and right sides wall Breaking-proof switch auricle 600, wherein, to simplify structure and ensuring security protection performance, two breaking-proof switch auricles 600 are just opposite, and Size is identical.Certainly, multiple breaking-proof switch auricles can also be extended on every side wall as needed.

As shown in Figure 2 and Figure 6, positive bending of the breaking-proof switch auricle 600 to flexible PCB 300, to prolong on each side wall Exemplified by stretching 1 Protection switch auricle 600, two breaking-proof switch auricles 600 are to opposite direction bending, in this way, can be by metal dome 400 are folded on the front of flexible PCB 300, specifically, metal dome 400 are folded in the key zone of flexible PCB 300 Domain 311, therefore ensures that metal dome 400 and the key switch function of flexible PCB 300.

To realize the safe tamper function of the structure, breaking-proof switch auricle 600 is electrically connected to flexible PCB 300, when attacking When the person of hitting dismantles the structure, breaking-proof switch auricle 600 is connected disconnection with the circuit of flexible PCB 300, you can triggering is relevant Security mechanism wipes the hypersensitivity data message of flexible PCB storage inside, is achieved in function of safety protection.

As shown in Fig. 2, breaking-proof switch auricle 600 is located at the periphery of the key area 311 of flexible PCB 300, it is specially Left side and/or right side, in embodiment, two breaking-proof switch auricles 600 are located at the left and right sides of key area 311 respectively, namely It is to say, two breaking-proof switch auricles 600 do not cover corresponding 400 part of metal dome in key area 311, in this way, saving existing Some mesh protective layers, during user's pressing keys 210, key mapping layer 200 can be touched directly with metal dome 400, thus the keyboard The press sense of safe Anti-dismounting structure is stronger.

As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, in the present embodiment, stent 500 is mainly to by key mapping layer 200, metal dome 400th, flexible PCB 300 sequentially be fixed on the back side of face-piece 100 by disposable pressing, it is possible to understand that ground, will when installation is assembled After key mapping layer 200, breaking-proof switch auricle 600, metal dome 400 and flexible PCB 300 sequentially align well, by face-piece 100 The back side on pressing stent 500, you can by key mapping layer 200, breaking-proof switch auricle 600, metal dome 400 and flexible PCB 300 On the disposable back side of the pressing fixed to face-piece 100.Obviously, overall structure is simple, and installs very convenient.

Further, a kind of embodiment as keypad security Anti-dismounting structure provided by the utility model, such as schemes 2nd, shown in Fig. 6 and Fig. 7, flexible PCB 300 includes substrate 310, wherein, the front of substrate 310 has above-mentioned key area 311, in the periphery of the key area 311 of flexible PCB 300, substrate 310 is equipped with least one first anti-trigger architecture 312, accordingly, the inner wall of breaking-proof switch auricle 600 is equipped with least one second anti-trigger architecture 610, to realize that safety is anti- Protective function, each second anti-trigger architecture 610 are pressed on corresponding first anti-trigger architecture 312, and are electrically connected to corresponding One anti-trigger architecture 312, in this way, when the keypad security Anti-dismounting structure is opened, breaking-proof switch auricle 600 and flexible PCB Connection between 300 loosens, and thus, each second anti-trigger architecture 610 is disconnected with the corresponding first anti-312 circuit of trigger architecture, Meanwhile first anti-trigger architecture 312 be triggered startups, the height of 300 storage inside of flexible PCB is wiped in thus instruction immediately Sensitive data information.

It should be noted that in the present embodiment, each second anti-trigger architecture 610 is conductive sheet, each first anti-trigger architecture 312 include triggering inner ring (not shown) and the triggering outer shroud (not shown) positioned at triggering inner ring outer ring, when breaking-proof switch auricle 600 When being pressed on flexible PCB 300, each conductive sheet is pressed on corresponding first anti-trigger architecture 312, so that it is guaranteed that corresponding The first anti-trigger architecture 312 in triggering inner ring and triggering outer shroud between conduct, and then realize breaking-proof switch auricle 600 with Conducting between flexible PCB 300.

It should be noted that in general, it is folded in by breaking-proof switch auricle 600 in the metal dome 400 on flexible PCB 300 At least one avoid holes (not shown) is offered, during facilitating breaking-proof switch auricle 600 to be pressed on flexible PCB 300, respectively Second anti-trigger architecture 610 can be touched with the corresponding first anti-pressing of trigger architecture 312, so as to fulfill the conducting of circuit.

Further, a kind of embodiment as keypad security Anti-dismounting structure provided by the utility model, such as Fig. 2 Shown in Fig. 5, key mapping layer 200 is equipped with least one pressing protrusion 220, wherein, as shown in Figure 4 and Figure 5, each pressing is raised 220 are connected to corresponding breaking-proof switch auricle 600, and each pressing protrusion 220 is corresponded with each second anti-trigger architecture 610. In this way, the abutting by each pressing protrusion 220, it can be ensured that each second anti-trigger architecture 610 can stably be pressed on corresponding On first anti-trigger architecture 312, so that it is guaranteed that each breaking-proof switch auricle 600 and flexible PCB 300 are electrically connected.Preferably, As shown in Fig. 2 to Fig. 4, Fig. 7, the first anti-trigger architecture 312, the second anti-trigger architecture 610 and pressing protrusion 220 are equipped with two It is a.

Further, a kind of embodiment as keypad security Anti-dismounting structure provided by the utility model, such as Fig. 2 It is shown, at least one positioning protrusion 510 is convexly equipped with the front of stent 500, as shown in Figure 3 and Figure 7, in flexible PCB 300 Key area 311 periphery, at least one first location hole 313 is offered on substrate 310, as shown in figure 3, metal dome 400 On offer at least one second location hole 420 corresponding with each first location hole 313, as shown in Fig. 2, Fig. 6 and Fig. 7, tamper At least one 3rd location hole 620 corresponding with each second location hole 420 is offered on switch auricle 600, it is disposable to realize Pressing is fixed, and each positioning protrusion 510 is sequentially inserted in corresponding first location hole 313, the second location hole 420 and the 3rd location hole In 620, in this way, flexible PCB 300, metal dome 400 and 600 accurate contraposition of breaking-proof switch auricle can be installed.Preferably, In the present embodiment, the first location hole 313, the second location hole 420, the 3rd location hole 620 and positioning protrusion 510 are equipped with two It is a.

Further, a kind of embodiment as keypad security Anti-dismounting structure provided by the utility model, in fact The accurate contraposition installation of existing key mapping layer 200, as shown in Figures 2 and 3, it is right with each 3rd location hole 620 to be offered on key mapping layer 200 At least one 4th location hole 230 answered, wherein, to simplify the structure of the safe Anti-dismounting structure, in general, each positioning protrusion 510 Be inserted in corresponding 4th location hole 230, in other words, from stent 500 to the direction of face-piece 100 on, it is each on stent 500 It is fixed that positioning protrusion 510 is sequentially inserted in corresponding first location hole 313, the second location hole 420, the 3rd location hole 620 and the 4th In the hole 230 of position.Preferably, in the present embodiment, the 4th location hole 230 and positioning protrusion 510 are equipped with two.

The utility model also provides a kind of POS machine, which includes above-mentioned keypad security Anti-dismounting structure.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention.For this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on, should be included within the right of the utility model.

Claims (10)

1. keypad security Anti-dismounting structure, including face-piece and front are placed with the key mapping layer of multiple buttons, it is characterised in that：Further include Equipped with the flexible PCBs of multiple golden fingers, the metal dome equipped with multiple key mappings and to by the key mapping in key area Sequentially disposably the stent on the back side of the face-piece is fixed in pressing for layer, the metal dome, the flexible PCB, each described Button, each key mapping and each golden finger sequentially correspond；Extend on the side wall of the flexible PCB oriented described The positive bending of flexible PCB, the metal dome can be folded on the front of the flexible PCB, be electrically connected to it is described Flexible PCB and positioned at the periphery of the key area preventing flexible PCB breaking-proof switch ear under attack Piece.

2. keypad security Anti-dismounting structure as claimed in claim 1, it is characterised in that：The button on the flexible PCB The periphery in region is equipped with least one first anti-trigger architecture, and the inner wall of the breaking-proof switch auricle is equipped with least one second Anti- trigger architecture, each second anti-trigger architecture press and are electrically connected to the corresponding first anti-trigger architecture.

3. keypad security Anti-dismounting structure as claimed in claim 2, it is characterised in that：The key mapping layer is equipped with least one pressure Close raised, each pressing protrusion is connected to the corresponding breaking-proof switch auricle, and with each second anti-trigger architecture one One corresponds to.

4. keypad security Anti-dismounting structure as claimed in claim 3, it is characterised in that：The first anti-trigger architecture, described Two anti-trigger architectures and the pressing protrusion are equipped with two.

5. keypad security Anti-dismounting structure as claimed in claim 1, it is characterised in that：It is convexly equipped with least on the front of the stent One positioning protrusion, the periphery of the key area of the flexible PCB offers at least one first location hole, described At least one second location hole corresponding with each first location hole is offered in metal dome, is opened on the breaking-proof switch auricle Equipped with least one 3rd location hole corresponding with each second location hole, each positioning protrusion is sequentially inserted in corresponding In first location hole, second location hole and the 3rd location hole.

6. keypad security Anti-dismounting structure as claimed in claim 5, it is characterised in that：First location hole, described second are determined Position hole, the 3rd location hole and the positioning protrusion are equipped with two.

7. keypad security Anti-dismounting structure as claimed in claim 5, it is characterised in that：Offered on the key mapping layer with it is each described Corresponding at least one 4th location hole of 3rd location hole, each positioning protrusion are inserted in corresponding 4th location hole It is interior.

8. keypad security Anti-dismounting structure as claimed in claim 7, it is characterised in that：4th location hole and the convex Rise and be equipped with two.

9. such as claim 1 to 8 any one of them keypad security Anti-dismounting structure, it is characterised in that：The flexible PCB 1 breaking-proof switch auricle is each extended on two side, the two breaking-proof switch auricles are just opposite and size is identical.

10.POS machines, it is characterised in that：Including such as claim 1 to 9 any one of them keypad security Anti-dismounting structure.