CN111581678A

CN111581678A - Hard disk self-destruction device for preventing computer files from being stolen

Info

Publication number: CN111581678A
Application number: CN202010395832.3A
Authority: CN
Inventors: 陈卓
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-08-25

Abstract

The invention relates to the technical field of notebook hard disk self-destruction protection, and discloses a hard disk self-destruction device for preventing computer files from being stolen, wherein a storage battery, a single chip microcomputer and other elements are arranged in a groove body, so that the self-destruction device is provided with an independent power supply and a system, the self-destruction device is prevented from being influenced by a notebook, the self-destruction device can be stably triggered, and the problem that the conventional hard disk self-destruction device is difficult to stably trigger is solved.

Description

Hard disk self-destruction device for preventing computer files from being stolen

Technical Field

The invention relates to the technical field of notebook hard disk self-destruction protection, in particular to a hard disk self-destruction device for preventing computer files from being stolen.

Background

Notebook computers are used as personal portable devices, important data related to personal life or work are stored in a hard disk of the notebook computer to prevent the data from being stolen, and the notebook computers are generally provided with hard disk self-destruction devices, but the existing hard disk self-destruction devices have the following problems:

1. most hard disk self-destruction devices share the same power supply with the notebook computer, and when the storage battery is removed or the power supply of the storage battery is exhausted, the hard disk self-destruction devices can not be triggered;

2. the hard disk self-destruction device control system and the notebook computer system share elements or are electrically connected, and when a lawbreaker implants viruses into a notebook computer through a notebook port, the hard disk self-destruction device can not be triggered;

3. most hard disks are provided with hard disk covers made of metal materials, the existing hard disk self-destruction device is difficult to thoroughly destroy the hard disks, and after the hard disk self-destruction device is triggered, a lawbreaker can still extract useful files by repairing the hard disks, so that information leakage is caused;

accordingly, the present invention has been made to solve the above problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the hard disk self-destruction device for preventing the computer file from being stolen, which has the advantages of being provided with an independent power supply and an independent system, being capable of stably triggering, fully destroying the magnetic disk and avoiding information leakage, and solves the problems that the conventional hard disk self-destruction device is difficult to stably trigger, and the magnetic disk is difficult to thoroughly destroy so as to cause information leakage.

In order to achieve the purpose, the invention provides the following technical scheme: a hard disk self-destruction device for preventing files of a computer from being stolen comprises a groove body, a microswitch and a self-destruction mechanism, wherein the groove body and the microswitch are arranged in a notebook shell, the self-destruction mechanism is arranged at the position of a notebook hard disk, a storage battery and a single chip microcomputer are respectively arranged on the left side and the right side of the groove body, a normally closed switch, a first triode and a first relay are sequentially arranged in the middle of the groove body from top to bottom, and a GSM module is integrated on the upper portion of the single chip microcomputer;

the self-destruction mechanism comprises a thermal-magnetic-elimination assembly and a physical crushing assembly, the thermal-magnetic-elimination assembly comprises a base belt layer, the base belt layer is adhered to the inner wall of the hard disk cover through a first adhesive layer, an electric heating net is arranged on the lower surface of the base belt layer, the physical crushing assembly comprises a box body, the lower surface of the box body is adhered to the upper surface of the hard disk cover through a second adhesive layer, a heating electrode is arranged at the end of the box body, and a thermal expansion agent is filled in the box body.

Preferably, the right side of cell body is provided with second triode and second relay, battery, normally closed switch, electric heat net and heating electrode establish ties in proper order, constitute first trigger circuit, battery, singlechip, first triode and first relay establish ties in proper order, and the electric shock of first relay establishes ties between battery and the normally closed switch in first trigger circuit to the switch of control first trigger circuit, battery, micro-gap switch, electric heat net and heating electrode establish ties in proper order constitute second trigger circuit, battery, singlechip, second triode and second relay establish ties in proper order, and the electric shock of second relay establishes ties between battery and the micro-gap switch in the second trigger circuit, thereby control second trigger circuit's switch.

Preferably, the single chip microcomputer may be, but is not limited to, ATMEGA16, the first transistor and the second transistor may be, but is not limited to, SS8550, and the first relay and the second relay may be, but is not limited to, SRD-5 VDC-SL-C.

Preferably, the shape of the main body of the base band layer is a circle matched with a conventional magnetic disk, and the right side of the base band layer is provided with a special-shaped groove matched with a conventional magnetic head arm and a magnetic head.

Preferably, the thermal expansion agent may be a thermal expansion microsphere.

Preferably, the upper left corner of cell body is provided with the USB interface that charges, and the USB interface electricity that charges connects the battery.

Preferably, the microswitch is a normally closed microswitch, the type of the microswitch can be, but is not limited to, WK-01C, and a plurality of microswitches are arranged on the outer side of the notebook shell.

Compared with the prior art, the invention provides a hard disk self-destruction device for preventing computer files from being stolen, which has the following beneficial effects:

1. according to the hard disk self-destruction device for preventing the computer file from being stolen, the storage battery, the single chip microcomputer and other elements are arranged in the groove body, so that the self-destruction device is provided with an independent power supply and an independent system, the influence of a notebook is avoided, the self-destruction device can be stably triggered, and the problem that the conventional hard disk self-destruction device is difficult to stably trigger is solved;

2. this hard disk self-destruction device is taken in thief-proofly of computer file, through the fixed electric heat net of baseband layer through the inner wall at the hard disk lid, set up the box body at the upper surface of hard disk lid, the tip of box body sets up heating electrode, inside packing thermal expansion agent, when making self-destruction device trigger, the electric heat net circular telegram heaies up, make the disc demagnetization, the thermal expansion agent is heated the inflation, the extrusion destroys the hard disk, and at this in-process, electric heat net laminating disc guarantees thoroughly the demagnetization, make the hard disk unable the restoration, information leakage.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a front cross-sectional view of the self-destruct mechanism of the present invention;

FIG. 3 is a schematic view of the self-destruct mechanism of the present invention in an expanded state;

FIG. 4 is a block diagram of an electronic device according to the present invention.

In the figure: 1. a trough body; 2. a microswitch; 3. a storage battery; 4. a single chip microcomputer; 5. a normally closed switch; 6. a self-destruction mechanism; 61. a thermal degaussing assembly; 611. a base tape layer; 612. a first adhesive layer; 613. an electric heating net; 62. a physical disruption component; 621. a box body; 622. a second adhesive layer; 623. heating the electrode; 624. a thermal expansion agent; 7. a first triode; 8. a first relay; 9. a GSM module; 10. a second triode; 11. a second relay; 12. a special-shaped groove; 13. and a USB charging interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2, 3 and 4, a hard disk self-destruction device for preventing computer files from being stolen comprises a rectangular tank body 1, a micro switch 2 and a self-destruction mechanism 6, wherein the tank body 1 is arranged in the middle of a notebook shell, the self-destruction mechanism 6 is arranged at a notebook hard disk, a storage battery 3 and a single chip microcomputer 4 are respectively arranged on the left side and the right side of the tank body 1, a normally closed switch 5, a first triode 7 and a first relay 8 are sequentially arranged in the middle of the tank body 1 from top to bottom, a GSM module 9 is integrated on the upper portion of the single chip microcomputer 4, the single chip microcomputer 4 can control the GSM module 9 to send and receive short messages, thereby being wirelessly connected with an external terminal and sending out instructions through the external terminal, the singlechip 4 receives the instructions through the GSM module 9, thereby controlling the triggering of the self-destruction device, and the GSM module 9 can position the notebook computer, so that the lost notebook computer can be conveniently found out;

the self-destruction mechanism 6 comprises a thermal magnetic elimination component 61 and a physical crushing component 62, the thermal magnetic elimination component 61 comprises a base band layer 611, the base band layer 611 is adhered on the inner wall of the hard disk cover through a first adhesive layer 612, the lower surface of the base band layer 611 is provided with an electric heating net 613, the electric heating net 613 is not in contact with the magnetic disk and the magnetic head, the physical crushing component 62 comprises a box body 621, the lower surface of the box body 621 is adhered on the upper surface of the hard disk cover through a second adhesive layer 622, the end part of the box body 621 is provided with a heating electrode 623, the interior of the box body 621 is filled with a thermal expansion agent 624, when the self-destruction mechanism 6 is triggered, the electric heating net 613 is electrified and heated, the generated high temperature enables the magnetic disk to be rapidly demagnetized, meanwhile, the thermal expansion agent 624 rapidly expands under the heating action of the heating electrode 623 to damage the hard disk, in the process, the hard disk cover is concave-, therefore, disk repair is avoided, and information leakage is avoided.

Referring to fig. 1 and 4, a second triode 10 and a second relay 11 are disposed on the right side of the tank 1, the battery 3, the normally closed switch 5, the electric heating net 613 and the heating electrode 623 are sequentially connected in series to form a first trigger circuit, the battery 3, the single chip microcomputer 4, the first triode 7 and the first relay 8 are sequentially connected in series to form a first control circuit, and an electric shock of the first relay 8 is connected in series between the battery 3 and the normally closed switch 5 in the first trigger circuit, so that the switch of the first trigger circuit can be controlled through an external terminal, and the hard disk self-destruction can be remotely controlled, and in a natural state, the first relay 8 is in an off state, so that the first trigger circuit is in an off state, the battery 3, the micro switch 2, the electric heating net 613 and the heating electrode 623 are sequentially connected in series, and in a natural state, the second trigger circuit is formed, and the battery 3, the, The second triode 10 and the second relay 11 are connected in series in sequence to form a second control circuit, and the electric shock of the second relay 11 is connected in series between the storage battery 3 and the microswitch 2 in the second trigger circuit, so as to remotely control the switch of the second trigger circuit, when in a natural state, the second relay 11 is in a power-on state, the microswitch 2 is in a disconnected state under the installation and extrusion action of the notebook shell, so that the second trigger circuit is in a disconnected state, when the notebook shell is forcibly opened, the notebook shell does not extrude the microswitch 2, the microswitch 2 automatically resets and is in a closed state, so that the second trigger circuit is closed and powered on, so as to trigger the self-destruction mechanism 6, when the notebook is normally maintained and detected, the second relay 11 can be powered off in advance through an external terminal, so that after the notebook shell is opened, the second trigger circuit is still in the disconnected state, avoiding false triggering of the self-destruction mechanism 6.

Referring to fig. 1 and 4, the single chip 4 may be, but is not limited to, ATMEGA16, the first transistor 7 and the second transistor 10 may be, but is not limited to, SS8550, and the first relay 8 and the second relay 11 may be, but is not limited to, SRD-5 VDC-SL-C.

Referring to fig. 2 and 3, the main body of the base tape layer 611 is circular to match with a conventional magnetic disk, the right side of the base tape layer 611 is provided with a special-shaped groove 12 matching with a conventional magnetic head arm and a magnetic head, the electric heating net 613 is matched with the base tape layer 611, and the thickness of the base tape layer 611 and the electric heating net 613 is small, so that the thermal magnetic component 61 is prevented from affecting the normal use of the hard disk, and in order to electrically connect the thermal magnetic component 61 and the physical breaking component 62, a wire can be quickly routed at the port of the hard disk cover, so that a wire can be conveniently laid.

Referring to fig. 2, the thermal expansion agent 624 may be a thermal expansion microsphere, which is a minute spherical particle with AN outer portion of a thermoplastic sphere with good air tightness, and is internally packaged with low boiling point hydrocarbons, and prepared by using magnesium hydroxide as a dispersant, Acrylonitrile (AN) and methyl Methacrylate (MA) as main polymerization monomers, Azodiisobutyronitrile (AIBN) as AN initiator, and trimethylolpropane triacrylate (TMPTA) as a cross-linking agent through a suspension polymerization method. The volume of the thermal expansion microsphere is basically kept unchanged before reaching the critical temperature, the hydrocarbon phase in the sphere is changed into gas state after the temperature is higher than the critical temperature, the volume of the thermal expansion microsphere can be expanded by dozens of times instantly, and the plastic material outside the sphere can keep the shape after the volume is changed. In addition, the critical temperature of the thermal expansion microspheres can be well controlled by the preparation process.

Referring to fig. 1, a USB charging interface 13 is disposed at the upper left corner of the tank 1, and the USB charging interface 13 is electrically connected to the battery 3, so as to conveniently charge the battery 3.

Referring to fig. 1, the micro switch 2 is a normally closed micro switch, the type of the micro switch 2 may be, but is not limited to, WK-01C, a plurality of micro switches 2 are disposed on the outer side of the notebook computer casing, when the notebook computer casing is installed and buckled, the micro switch 2 is pressed to make the micro switch 2 in an off state, and the plurality of micro switches 2 are connected in parallel in the second trigger circuit, when any one micro switch 2 is triggered, the second trigger circuit is turned on.

The working principle is as follows: when the hard disk self-destruction device is used, the enclosing position of the internal structure of the notebook is reasonably designed, the groove body 1 is arranged in the middle of the notebook shell, the thermal degaussing component 61 is arranged on the inner wall of the hard disk cover, the physical crushing component 62 is arranged on the upper surface of the hard disk cover, the micro switches 2 are arranged on the outer side of the notebook shell, the rear cover of the notebook is buckled and is attached to the upper surface of the physical crushing component 62, the micro switches 2 are extruded to disconnect the micro switches 2, at the moment, the first trigger circuit, the first control circuit and the second trigger circuit are all in an open state, the second control circuit is in a closed state, when the notebook is lost, an instruction can be sent to the hard disk self-destruction device through an external terminal, the single chip microcomputer 4 receives the instruction through the GSM module 9 to close the first control circuit, further close the first trigger circuit to trigger the self-destruction mechanism 6 to be electrified, when a lawbreaker forcibly opens the rear cover of the notebook computer, the shell of the notebook computer does not extrude the microswitch 2, the microswitch 2 automatically resets and is in a closed state, so that the second trigger circuit is closed and electrified, the self-destruction mechanism 6 is triggered, the hard disk is self-destroyed, and information leakage is avoided.

In summary, in the hard disk self-destruction device for preventing computer files from being stolen, the storage battery 3, the single chip microcomputer 4 and other elements are arranged in the tank body 1, so that the self-destruction device is provided with an independent power supply and an independent system, the influence of a notebook computer is avoided, the stable triggering of the self-destruction device is ensured, and the problem that the stable triggering of the conventional hard disk self-destruction device is difficult is solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hard disk self-destruction device is used in thief-proof of computer file, includes cell body (1), micro-gap switch (2) and self-destruction mechanism (6), its characterized in that: the cell body (1) and the microswitch (2) are arranged in a notebook computer shell, the self-destruction mechanism (6) is arranged at a hard disk of the notebook computer, the left side and the right side of the cell body (1) are respectively provided with a storage battery (3) and a single chip microcomputer (4), the middle part of the cell body (1) is sequentially provided with a normally closed switch (5), a first triode (7) and a first relay (8) from top to bottom, and the upper part of the single chip microcomputer (4) is integrated with a GSM module (9);

the self-destruction mechanism (6) comprises a thermal magnetic elimination assembly (61) and a physical crushing assembly (62), wherein the thermal magnetic elimination assembly (61) comprises a base belt layer (611), the base belt layer (611) is adhered to the inner wall of the hard disk cover through a first adhesive layer (612), an electric heating net (613) is arranged on the lower surface of the base belt layer (611), the physical crushing assembly (62) comprises a box body (621), the lower surface of the box body (621) is adhered to the upper surface of the hard disk cover through a second adhesive layer (622), a heating electrode (623) is arranged at the end of the box body (621), and a thermal expansion agent (624) is filled in the box body (621).

2. The computer file hard disk self-destruction device for preventing theft of a computer according to claim 1, wherein: the right side of cell body (1) is provided with second triode (10) and second relay (11), battery (3), normally closed switch (5), electric heat net (613) and heating electrode (623) establish ties in proper order, constitute first trigger circuit, battery (3), singlechip (4), first triode (7) and first relay (8) establish ties in proper order, and the electric shock of first relay (8) establish ties between battery (3) and normally closed switch (5) in first trigger circuit, thereby control first trigger circuit's switch, battery (3), micro-gap switch (2), electric heat net (613) and heating electrode (623) establish ties in proper order constitute second trigger circuit, battery (3), singlechip (4), second triode (10) and second relay (11) establish ties in proper order, and the electric shock of the series connection of second relay (11) battery (3) and micro-gap switch (2) in second trigger circuit Thereby controlling the switching of the second trigger circuit.

3. The computer file hard disk destructor for preventing theft of computer files of claim 2, wherein: the type of the single chip microcomputer (4) can be, but is not limited to, ATMEGA16, the type of the first triode (7) and the type of the second triode (10) can be, but is not limited to, SS8550, and the type of the first relay (8) and the type of the second relay (11) can be, but is not limited to, SRD-5 VDC-SL-C.

4. The computer file hard disk self-destruction device for preventing theft of a computer according to claim 1, wherein: the main body of the base band layer (611) is in a circular shape matched with a conventional magnetic disk, and the right side of the base band layer (611) is provided with a special-shaped groove (12) matched with a conventional magnetic head arm and a magnetic head.

5. The computer file hard disk self-destruction device for preventing theft of a computer according to claim 1, wherein: the thermal expansion agent (624) may be a thermal expansion microsphere.

6. The computer file hard disk self-destruction device for preventing theft of a computer according to claim 1, wherein: the upper left corner of cell body (1) is provided with USB interface (13) that charges, and USB charges interface (13) electricity and connects battery (3).

7. The computer file hard disk self-destruction device for preventing theft of a computer according to claim 1, wherein: the micro switch (2) is a normally closed micro switch, the type of the micro switch (2) can be but is not limited to WK-01C, and a plurality of micro switches (2) are arranged on the outer side of the notebook shell.