CN115859397B - Security structure of electronic equipment and electronic equipment - Google Patents

Abstract

The present disclosure provides a security structure of electronic equipment and electronic equipment, electronic equipment includes first casing and second casing, and security structure includes: the detection circuit is arranged in a cavity formed by buckling the first shell and the second shell and comprises an elastic switch; the locking piece is arranged on the first shell; the first shell is buckled with the second shell, the locking piece acts on the elastic switch to disconnect the elastic switch, and the detection circuit sends out a first signal; under the state that the first shell is separated from the second shell, the locking piece releases the action on the elastic switch, the elastic switch is conducted, and the detection circuit sends out a second signal. The safety structure has the characteristics of high safety and low false triggering rate.

Description

Safety structure of electronic equipment and electronic equipment

technical field

The present disclosure relates to the field of electronic equipment, and in particular to a security structure of the electronic equipment and the electronic equipment.

Background technique

An intruder may open the housing of the electronic device and tamper with the interior of the electronic device. Setting an anti-tampering switch in the electronic device can be used to monitor the disassembly and assembly behavior of the electronic device, which is conducive to timely discovering whether there is a disassembly and assembly behavior in the housing of the electronic device. The casing of the electronic device will press the anti-tamper switch to keep the anti-tamper switch turned on. Once the casing is opened, the pressure on the anti-tamper switch disappears, the anti-tamper switch is disconnected, and the abnormality of the electrical signal will be recorded, thereby The case of the electronic equipment was found to be disassembled.

However, the momentary impact caused by vibration, drop and other reasons may cause the anti-tamper switch to be disconnected, and the abnormal signal triggered by mistake will cause wrong judgment.

Contents of the invention

The present disclosure provides a security structure of an electronic device and the electronic device, so as to at least solve the above technical problems existing in the prior art.

According to a first aspect of the present disclosure, there is provided a safety structure of an electronic device, the electronic device includes a first casing and a second casing, and the safety structure includes:

The detection circuit is located in the cavity formed by the fastening of the first shell and the second shell, and the detection circuit includes an elastic switch;

The lock block is arranged on the first housing; wherein

When the first housing is fastened to the second housing, the lock block acts on the elastic switch to turn off the elastic switch, and the detection circuit sends a first signal;

When the first casing is separated from the second casing, the locking block releases the effect on the elastic switch, the elastic switch is turned on, and the detection circuit sends out a second signal.

In a possible implementation, the elastic switch includes:

two electronic contacts;

Two conductive elastic pieces, the two conductive elastic pieces are respectively arranged on the two electronic contacts, and when the first housing is fastened to the second housing, the locking block is located at the two between the conductive shrapnel, so that the elastic switch is disconnected, and when the first housing is separated from the second housing, the locking block withdraws from between the two conductive shrapnels, and the two The conductive shrapnel contact each other under the action of elastic force, so that the elastic switch is turned on.

In a possible implementation manner, the two conductive elastic pieces are respectively bent to form arc-shaped protrusions, and the arc-shaped protrusions on the two conductive elastic pieces are oppositely arranged, and the locking block is connected from the two conductive elastic pieces. The elastic pieces withdraw from each other, and the arc surfaces of the arc-shaped convex parts of the two conductive elastic pieces are in contact.

In a possible implementation, the conductive shrapnel includes:

a base for connecting with the electronic contacts;

One end of the cantilever is connected to the base, and the other end is bent to form the arc-shaped convex part.

In a possible implementation manner, a fixing hole is provided on the base of at least one of the two conductive elastic pieces.

In a possible implementation, the width of the cantilever is smaller than the width of the base, so that the base has an extension protruding from the side of the cantilever at least on one side, and the fixing hole is provided on the extension department.

In a possible implementation manner, the base and the arc-shaped protrusion are located on the same side or different sides of the cantilever.

In a possible implementation manner, the bases of the two conductive elastic pieces are arranged opposite to each other.

In a possible implementation manner, one of the two conductive elastic pieces is connected to the electronic contact through a surface mount technology, and the other is connected to the electronic contact through a screw.

According to a second aspect of the present disclosure, an electronic device is provided, comprising a first housing and a second housing, and further comprising the security structure of the present disclosure.

In the safety structure of the present disclosure, the detection circuit is set in the cavity formed by the fastening of the first shell and the second shell, the detection circuit includes an elastic switch, the lock block is set on the first shell, and the first shell buckles When the second casing is closed, the elastic switch is disconnected under the action of the locking block, and the detection circuit sends out a first signal; when the first casing is separated from the second casing, the locking block releases the effect on the elastic switch, and the elastic switch leads If it is connected, the detection circuit sends out a second signal. Under normal circumstances, the elastic switch on the detection circuit remains disconnected. In the case of an instantaneous impact, the lock block can still maintain the disconnected elastic switch, which will not cause a change in the signal, thereby avoiding misjudgment caused by false triggering .

It should be understood that what is described in this section is not intended to identify key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will be readily understood through the following description.

Description of drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present disclosure are shown by way of illustration and not limitation, in which:

In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

FIG. 1 shows a structural schematic diagram of a security structure of an embodiment of the present disclosure applied to an electronic device;

FIG. 2 shows a second schematic structural diagram of the application of the security structure of the embodiment of the present disclosure to electronic equipment;

FIG. 3 shows a schematic structural diagram of a conductive elastic sheet of a safety structure according to an embodiment of the present disclosure;

Fig. 4 shows the second structural diagram of the conductive elastic sheet of the safety structure of the embodiment of the present disclosure;

Fig. 5 shows a schematic structural diagram of the conductive elastic sheet of the safety structure of the embodiment of the present disclosure;

FIG. 6 shows a third structural schematic diagram of the application of the security structure of the embodiment of the present disclosure to electronic equipment;

FIG. 7 shows a fourth structural schematic diagram of applying the security structure of the embodiment of the present disclosure to an electronic device.

Explanation of symbols in the figure: 1-first housing; 2-second housing; 3-detection circuit; 4-lock block; 5-electronic contact; 6-conductive shrapnel; ; 63-cantilever; 64-extension; 65-fixing hole; 7-conductor; 8-spring.

Detailed ways

In order to make the purpose, features, and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described The embodiments are only some of the embodiments of the present disclosure, but not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present disclosure.

Referring to Fig. 1, Fig. 2, Fig. 6 and Fig. 7, the present disclosure provides a safety structure of an electronic device, the electronic device includes a first housing 1 and a second housing 2, and the safety mechanism can monitor whether the electronic device is dismantled installed to detect tampering with electronic equipment in a timely manner. An electronic device can be a mobile phone, a tablet or a laptop, etc. In the following embodiments, a notebook computer is taken as an example for description.

Referring to Fig. 1 and Fig. 2, the overall structure of the embodiment of the present disclosure includes a detection circuit 3 and a lock block 4, and the detection circuit 3 is arranged in the chamber formed by fastening the first shell 1 and the second shell 2, and detects The circuit 3 includes an elastic switch; the lock block 4 is arranged on the first housing 1, as shown in Fig. 1, when the first housing 1 is fastened to the second housing 2, the lock block 4 acts on the elastic switch to make the elastic When the switch is turned off, the detection circuit 3 sends out a first signal; referring to Fig. 2, when the first casing 1 is separated from the second casing 2, the lock block 4 releases the effect on the elastic switch, the elastic switch is turned on, and the detection Circuit 3 sends out a second signal.

In the safety structure of the present disclosure, the detection circuit 3 is set in the cavity formed by the fastening of the first casing 1 and the second casing 2, the detection circuit 3 includes an elastic switch, and when the elastic switch is disconnected, the detection circuit 3 sends out The first signal, when the elastic switch is turned on, the detection circuit 3 sends out the second signal, the lock block 4 is set on the first casing 1, and when the first casing 1 is fastened to the second casing 2, the elastic switch is locked. Block 4 disconnects, and when the first casing 1 is separated from the second casing 2, the locking block 4 releases the effect on the elastic switch, and the elastic switch is turned on. Under normal circumstances, the elastic switch on the detection circuit 3 is on Under the action of the lock block 4, the disconnected state is maintained. In view of design tolerances, shell deformation, and instantaneous impact, compared with conduction, the elastic switch is easier to maintain disconnection. The safety structure of the embodiment of the present disclosure can Under the condition, the lock block 4 can still keep the elastic switch off, and will not cause a change in the signal, thereby avoiding misjudgment caused by mistriggering.

Taking a notebook computer as an example, the first casing 1 and the second casing 2 of the electronic device may be the bottom casing and the frame forming the main casing of the notebook computer. The lock block 4 is arranged on the bottom shell. When the bottom shell is fastened on the frame, the lock block 4 can act on the elastic switch to keep the switch off. When the bottom shell is opened, the effect of the lock block 4 on the elastic switch is released. Under the action of the elastic force, the elastic switch is turned on.

The electronic equipment includes a main board, and the detection circuit 3 may be located on the main board. In specific implementation, the detection circuit 3 can be directly formed on the main board by screen printing, engraving, photosensitive and other methods, and the elastic switch can be connected to the detection circuit 3 . Alternatively, the detection circuit 3 can also be an independent circuit board, and the detection circuit 3 can be connected to the main board through a reserved interface on the main board.

In the embodiment of the present disclosure, the first signal may be a low-level signal, and the second signal may be a high-level signal. When the first casing 1 is separated from the second casing 2, the detection circuit 3 sends a high-level signal, and according to the high-level signal, it can be determined that there is a disassembly behavior of the electronic device. The high-level signal sent by the detection circuit 3 can be recorded and stored as an event, and the event includes time. According to the stored events, the time when the electronic device is disassembled can be obtained.

In a possible implementation, referring to FIG. 1 and FIG. 2 , the elastic switch includes two electronic contacts 5 and an elastic component, and the elastic component connects the electronic contacts 5 under the action of elastic force, thereby making the elastic switch conductive. The lock block 4 acts on the elastic component, so that the two electronic contacts 5 are not conducted, and the elastic switch is disconnected.

In the embodiment of the present disclosure, the lock block 4 is inserted into the elastic switch to disconnect the elastic switch. When the first shell 1 is fastened to the second shell 2, the lock block 4 is inserted into the elastic switch, which can avoid inserting a thin card from the gap between the first shell 1 and the second shell 2 to avoid disassembly detection situation, improved safety performance.

When the lock block 4 is inserted into the elastic switch, the lock block 4 acts on the elastic component, so that the two electronic contacts 5 are not conducted.

In a possible implementation, referring to Fig. 1 and Fig. 2, the elastic component includes two conductive elastic pieces 6, and the two conductive elastic pieces 6 are respectively arranged on the two electronic contacts 5, and the first shell 1 is fastened to the second shell In the state of 2, the lock block 4 is located between the two conductive elastic sheets 6, so that the elastic switch is disconnected. After withdrawing, the two conductive shrapnels 6 are in contact with each other under the action of the elastic force, so that the elastic switch is turned on. When installing two conductive shrapnels 6, pre-pressure can be set, and the pre-pressure makes the two conductive shrapnels 6 close to each other and keep in contact. Under the action of pressure, the phase contacts, and the elastic switch conducts. The direction in which the lock block 4 is inserted between the two conductive elastic pieces 6 is perpendicular to the gap between the first shell 1 and the second shell 2, which can avoid insertion from the gap between the first shell 1 and the second shell 2 The thin card functions as an elastic switch, and bypasses the detection of disassembly and assembly of electronic equipment.

In a possible implementation, referring to Fig. 3 to Fig. 5, two conductive elastic pieces 6 are respectively bent to form arc-shaped protrusions 61, and the arc-shaped protrusions 61 on the two conductive elastic pieces 6 are oppositely arranged, and the locking block 4 is connected from both sides. The two conductive shrapnels 6 are withdrawn, and the arc surfaces of the arc-shaped convex parts 61 of the two conductive shrapnels 6 are in contact. The arc-shaped protrusions 61 arranged oppositely form a guiding arc surface in the insertion direction of the lock block 4, so that the lock block 4 can be easily inserted between the two conductive elastic pieces 6, which facilitates the assembly of electronic equipment.

Referring to FIG. 3 and FIG. 4 , the conductive elastic piece 6 can be bent in one direction to form an arc-shaped protrusion 61 , or as shown in FIG. 5 , can be bent in two directions to form an arc-shaped protrusion 61 . In an exemplary embodiment, bending the conductive elastic sheet 6 in one direction may include bending clockwise to form the arc-shaped protrusion 61 , or bending counterclockwise to form the arc-shaped protrusion 61 . Bending the conductive elastic sheet 6 in two directions may include bending in a clockwise direction and then bending in a counterclockwise direction to form an arc-shaped convex portion 61 .

The conductive elastic piece 6 can be bent in one direction to form a hook-shaped structure as shown in FIG. 3 . The outer surface of the hook structure forms an arc-shaped convex portion 61 . Of course, the conductive elastic piece 6 can also be bent in one direction to form a helical structure.

In a possible implementation manner, referring to FIG. 3 , the conductive spring 6 includes a base 62 and a cantilever 63 connected to the base 62 . The base 62 is used to connect with the electronic contacts 5 . One end of the cantilever 63 is connected to the base 62 , and the other end is bent to form an arc-shaped protrusion 61 . The other end of the cantilever 63 is a free end, and the free end can be continuously bent in one direction to form an arc-shaped convex portion 61, or it can be bent in one direction and then bent in the opposite direction to form an arc-shaped convex portion 61.

The free ends of the cantilever arms 63 of the two opposite conductive elastic pieces 6 can be bent in opposite directions to form two opposite arc-shaped protrusions 61 of hook-shaped structure. The hook-shaped structure can better provide elastic force, so that when the first housing 1 is opened relative to the second housing 2 , the two conductive springs 6 conduct the two electronic contacts 5 .

In a possible implementation manner, the base 62 and the arc-shaped protrusion 61 are located on the same side or different sides of the cantilever 63 . The base 62 and the arc-shaped convex portion 61 are located on the same side of the cantilever 63, which can reduce space occupation.

In a possible implementation manner, referring to FIG. 1 and FIG. 2 , the bases 62 of the two conductive elastic pieces 6 are arranged opposite to each other. The bases 62 of the two conductive elastic pieces 6 are arranged opposite to each other, so that the cantilevers 63 of the two conductive elastic pieces 6 are as far away as possible, so that there is sufficient pre-pressure and deformation space between the two conductive elastic pieces 6 . When the base 62 and the arc-shaped protrusion 61 are located on the same side of the cantilever 63 , the arc-shaped protrusions 61 of the two conductive elastic pieces 6 are also disposed opposite to each other.

In a possible implementation, the angle between the cantilever 63 and the base 62 may not exceed 90°. Specifically, referring to FIG. 3, the cantilever 63 may be perpendicular to the base 62, or referring to FIG. The corners can also be acute. When the bases 62 of the two conductive elastic pieces 6 are arranged oppositely, the two conductive elastic pieces 6 and the cantilever 63 at an acute angle to the base 62 are relatively inclined to provide sufficient preload together with the arc-shaped convex portion 61 to prolong the service life.

In a possible implementation manner, referring to FIG. 3 , a fixing hole 65 is provided on the base 62 of at least one of the two conductive elastic pieces 6 . A fixing hole 65 is provided on the base 62, which can be used for screw fixing connection.

In the embodiment of the present disclosure, the conductive elastic sheet 6 can be connected to the electronic contact 5 by using Surface Mounted Technology (SMT), or connected to the electronic contact 5 by screws. Of course, the conductive elastic sheet 6 can also be connected to the electronic contact 5 by using more than one Connect to the electronic contact 5 in a certain way, for example, first connect the conductive shrapnel 6 to the electronic contact 5 by using surface mount technology combined with screws. The connection methods of the two conductive shrapnels 6 are also the same or different. In an exemplary embodiment, among the two conductive elastic sheets 6, one conductive elastic sheet 6 is connected to the electronic contact 5 by using surface mount technology, which has high efficiency and can improve production efficiency, and the other conductive elastic sheet 6 is connected by screws. The screw connection makes it easier to adjust the preload between the two conductive shrapnels 6 .

In a possible implementation, referring to FIG. 3 , the width of the cantilever 63 is smaller than the width of the base 62, so that the base 62 has an extension 64 protruding from the side of the cantilever 63 at least on one side, and the fixing hole 65 is arranged on the extension 64. superior. The fixing hole 65 is opened on the extension part 64 , and the conductive elastic piece 6 can be fixed to the electronic contact 5 from the side of the cantilever 63 with screws, which facilitates the assembly of the conductive elastic piece 6 .

In a possible implementation manner, the safety structure of the embodiment of the present disclosure further includes a baffle, and the baffle is arranged on one side or both sides of the gap formed between the two conductive elastic pieces 6 . Setting the baffle can improve the safety performance, avoiding the insertion of objects from the gap between the first housing 1 and the second housing 2 to act on the elastic switch, and avoiding the detection of the disassembly behavior.

In the embodiments of the present disclosure, the structure of the elastic switch is not limited to the above-mentioned embodiments. For example, referring to Fig. 6 and Fig. 7, the elastic switch can include a housing, and two electronic contacts 5 are arranged on the top of the housing, and the elastic assembly includes a conductor 7 and a spring 8, and the spring 8 is used to apply a force to the conductor 7, which makes the The conductor 7 remains connected to the two electrical contacts 5 . When the first housing 1 and the second housing 2 are fastened together, the locking block 4 acts on the conductor 7 to separate the conductor 7 from the two electronic contacts 5, thereby turning off the elastic switch. When the first casing 1 is separated from the second casing 2, the conductor 7 is connected to the two electronic contacts 5 under the action of the spring 8, and the elastic switch conducts.

An embodiment of the present disclosure provides an electronic device, the electronic device includes a first housing 1 and a second housing 2, and the electronic device of the embodiment of the present disclosure includes the security structure of the embodiment of the present disclosure.

In the safety structure of the present disclosure, the detection circuit 3 is set in the cavity formed by the fastening of the first casing 1 and the second casing 2, the detection circuit 3 includes an elastic switch, and when the elastic switch is disconnected, the detection circuit 3 sends out The first signal, when the elastic switch is turned on, the detection circuit 3 sends out the second signal, the lock block 4 is set on the first casing 1, and when the first casing 1 is fastened to the second casing 2, the elastic switch is locked. Block 4 disconnects, and when the first casing 1 is separated from the second casing 2, the locking block 4 releases the effect on the elastic switch, and the elastic switch is turned on. Under normal circumstances, the elastic switch on the detection circuit 3 is on Under the action of the lock block 4, the disconnected state is maintained. In view of design tolerances, shell deformation, and instantaneous impact, compared with conduction, the elastic switch is easier to maintain disconnection. The safety structure of the embodiment of the present disclosure can Under the condition, the lock block 4 can still keep the elastic switch off, and will not cause a change in the signal, thereby avoiding misjudgment caused by mistriggering.

Taking a notebook computer as an example, the first casing 1 and the second casing 2 of the electronic device may be the bottom casing and the frame forming the main casing of the notebook computer. The lock block 4 is arranged on the bottom shell. When the bottom shell is fastened on the frame, the lock block 4 can act on the elastic switch to keep the switch off. When the bottom shell is opened, the effect of the lock block 4 on the elastic switch is released. Under the action of the elastic force, the elastic switch is turned on.

It should be understood that steps may be reordered, added or deleted using the various forms of flow shown above. For example, each step described in the present disclosure may be executed in parallel, sequentially, or in a different order, as long as the desired result of the technical solution disclosed in the present disclosure can be achieved, no limitation is imposed herein.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

The above is only a specific implementation of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure. should fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be determined by the protection scope of the claims.

Claims (9)

1. A safety structure of an electronic device, the electronic device comprising a first housing and a second housing, characterized in that the safety structure comprises: The detection circuit is located in the cavity formed by the fastening of the first shell and the second shell, the detection circuit includes an elastic switch, and the elastic switch includes two electronic contacts and two conductive elastic pieces, The two conductive shrapnels are respectively arranged on the two electronic contacts; The lock block is arranged on the first housing; wherein When the first shell is fastened to the second shell, the lock block is located between the two conductive elastic pieces, so that the elastic switch is turned off, and the detection circuit sends out a first Signal; When the first housing is separated from the second housing, the locking block withdraws from between the two conductive elastic pieces, and the two conductive elastic pieces contact each other under the action of elastic force, so that the elastic The switch is turned on, and the detection circuit sends out a second signal. 2. The safety structure according to claim 1, wherein the two conductive elastic pieces are respectively bent to form arc-shaped convex portions, and the arc-shaped convex portions on the two conductive elastic pieces are oppositely arranged, so that The locking block withdraws from between the two conductive elastic pieces, and the arc surfaces of the arc-shaped protrusions of the two conductive elastic pieces are in contact. 3. The safety structure according to claim 2, wherein the conductive shrapnel comprises: a base for connecting with the electronic contacts; One end of the cantilever is connected to the base, and the other end is bent to form the arc-shaped convex part. 4. The safety structure according to claim 3, wherein a fixing hole is provided on the base of at least one of the two conductive elastic pieces. 5. The safety structure according to claim 4, wherein the width of the cantilever is smaller than the width of the base, so that the base has an extension protruding from the side of the cantilever at least on one side, The fixing hole is arranged on the extension part. 6. The safety structure according to claim 3, wherein the base and the arc-shaped protrusion are located on the same side or different sides of the cantilever. 7. The safety structure according to claim 3, characterized in that, the bases of the two conductive elastic pieces are arranged opposite to each other. 8 . The safety structure according to claim 1 , wherein one of the two conductive elastic pieces is connected to the electronic contact through surface mount technology, and the other is connected to the electronic contact through a screw. 9. An electronic device, comprising a first housing and a second housing, further comprising the safety structure according to any one of claims 1-8.

Images