CN202205284U

CN202205284U - Protecting device for core devices of POS machine

Info

Publication number: CN202205284U
Application number: CN2011203405302U
Authority: CN
Inventors: 朱波; 王钰卓
Original assignee: PAX Computer Technology Shenzhen Co Ltd
Current assignee: PAX Computer Technology Shenzhen Co Ltd
Priority date: 2011-09-09
Filing date: 2011-09-09
Publication date: 2012-04-25
Anticipated expiration: 2021-09-09

Abstract

A protecting device for core devices of a POS (point-of-sale) machine comprises a main PCB, a PCB, a sealing frame, electric conductors, a security processor and a data memory, wherein, the main PCB, the PCB and the sealing frame together form a sealing cavity for protecting the security processor and the data memory; the security processor and the data memory are electrically connected with each other and both installed on the main PCB; and a piezo-electricity thin film electrically connected with the security processor is arranged on the peripheral wall of the sealing frame. Through the protecting device, when the core devices of the POS machine are attacked physically, a security mechanism of the security processor is triggered to immediately destroy data in the data memory, thus avoiding data leakage.

Description

A kind of POS machine core devices protective device

Technical field:

The utility model belongs to POS organizational security protector for collar territory, is specially a kind of POS machine core devices protective device.

Background technology:

Widely used in the market POS machine, the core circuit that it is inner is directly installed in the housing like pcb board (printed circuit board (PCB)), safe processor, data-carrier store etc. mostly, does not adopt the data security protection.When externally using, other people often utilize the mandatory core devices to the POS machine of physical means to attack, thereby steal user's bank's key or guest's password, so the safeguard protection of data becomes very important in the POS machine.

The utility model content:

The purpose of the utility model is to overcome the deficiency of above-mentioned prior art, and a kind of POS protector of protecting core devices and store data inside thereof is provided.

In order to realize the foregoing invention purpose, the utility model has adopted following technical scheme:

A kind of POS machine core devices protective device; Comprise main PCB plate, pcb board, sealing frame, electric conductor, safe processor and data-carrier store; Said main PCB plate, pcb board and sealing frame constitute the closed cavity of a said safe processor of protection and data-carrier store; Said safe processor is electrically connected and is installed in data-carrier store on the said main PCB plate, and said sealing frame periphery wall also is equipped with the piezoelectric membrane that is electrically connected with said safe processor.

Said piezoelectric membrane is made up of the anti-layer that tears of two-layer signals layer and one deck, and said two signals layers, anti-tearing layer all are equipped with insulation course between any two.

Said main PCB plate, pcb board internal layer all are equipped with the MESH cabling, and are electrically connected with said safe processor through said electric conductor.

The utility model has following advantage with respect to prior art after adopting technique scheme:

The first, the main PCB plate of the utility model, pcb board and sealing frame constitute the closed cavity of protection safe processor and a data-carrier store, and the security mechanism through safe processor can prevent that data are stolen in the data-carrier store; Sealing frame periphery wall is equipped with a piezoelectric membrane; The signals layer of piezoelectric membrane, the anti-layer that tears are electrically connected with safe processor; When the external world attacks the nucleus that piezoelectric membrane protected mode such as to pierce through or tear; Can cause the signal shorts or the anti-signal that tears layer transmission of the transmission of two signals layers to break off; Thereby trigger the security mechanism of the safe processor connected, security mechanism is destroyed the data in the data-carrier store immediately, and it has prevented that effectively other people from utilizing physical means to destroy and steal the significant data in the POS machine.

Second; Main PCB plate, pcb board internal layer all have the MESH cabling that is electrically connected with safe processor through electric conductor; When the assailant wants that through boring, polishing the MESH cabling breaks off when attacking the core devices that is installed in the closed cavity, signal is transmitted in safe processor and triggers its security mechanism; Security mechanism is destroyed the data-carrier store internal data immediately, thus safety that can general protection POS machine significant data.

Description of drawings:

Fig. 1 is the utility model core devices protective device structural representation;

Fig. 2 is the utility model core devices protective device diagrammatic cross-section;

Fig. 3 is the utility model A-A section enlarged diagram.

Embodiment:

The following stated is merely the preferred embodiment of the utility model, does not therefore limit the protection domain of the utility model.

Referring to Fig. 1, Fig. 2 and Fig. 3; A kind of POS machine core devices protective device that provides according to the utility model; Comprise main PCB plate 1, pcb board 2, sealing frame 3, electric conductor 4, safe processor 5 and data-carrier store 6; Main PCB plate 1, pcb board 2 and sealing frame 3 constitute the closed cavity of a protection safe processor 5 and data-carrier store 6; Safe processor 5 is electrically connected and is installed on the main PCB plate 1 with data-carrier store 6, and the security mechanism through safe processor 5 can prevent that data are stolen in the data-carrier store 6; Sealing frame 3 periphery walls also are equipped with one and tear the piezoelectric membrane 7 that layer 72 and dielectric layers 73 are formed by two-layer signals layer 71, one deck are anti-; And be electrically connected with safe processor 5; Its two signals layers 71 are connected with single group detection pin with a pair of inspection signal of safe processor 5 respectively with an anti-layer 72 that tears; When the external world wants to attack sealing frame 3 and get into core safeguard protection districts through modes such as punching, pierce through; Thereby the signal shorts that can cause two signals layers 71 triggers the security mechanism of safe processor 5, and security mechanism is destroyed the data in the data-carrier store 6 immediately; When attacking through the mode of tearing piezoelectric membrane 7, the anti-transmission signals that tears layer 72 can break off, thereby causes the security mechanism of safe processor 5 to trigger, and security mechanism is destroyed the data in the data-carrier store 6 immediately.

Said main PCB plate 1, pcb board 2 internal layers all are equipped with MESH cabling 8; And be electrically connected with safe processor 5 through electric conductor 4; When the assailant wants that through boring, when polishing main PCB plate 1 and pcb board 2 are attacked the core devices that is installed in the closed cavity, the MESH cabling 8 of main PCB plate 1 and pcb board 2 internal layers breaks off, thereby cause the security mechanism of safe processor 5 to trigger; Security mechanism is destroyed data-carrier store 6 internal datas immediately, and then the safety of protection POS machine significant data.

Claims

1. POS machine core devices protective device; Comprise main PCB plate (1), pcb board (2), sealing frame (3), electric conductor (4), safe processor (5) and data-carrier store (6); Said main PCB plate (1), pcb board (2) and sealing frame (3) constitute the closed cavity of a protection said safe processor (5) and data-carrier store (6); Said safe processor (5) is electrically connected and is installed on the said main PCB plate (1) with data-carrier store (6), it is characterized in that: said sealing frame (3) periphery wall also is equipped with the piezoelectric membrane (7) that is electrically connected with said safe processor (5).

2. a kind of POS machine core devices protective device according to claim 1; It is characterized in that: said piezoelectric membrane (7) is made up of the anti-layer (72) that tears of two-layer signals layer (71) and one deck, and said two signals layers (71), anti-tear layer (72) all are equipped with insulation course (73) between any two.

3. a kind of POS machine core devices protective device according to claim 1 and 2 is characterized in that: said main PCB plate (1), pcb board (2) internal layer all are equipped with MESH cabling (8), and are electrically connected with said safe processor (5) through said electric conductor (4).