Anti-disassembly device and electronic equipment

Abstract

The utility model provides an anti-disassembly device and an electronic device, the anti-disassembly device comprises a housing, a mainboard fixed in the housing, a fingerprint module and a plurality of anti-disassembly assemblies, the fingerprint module and the plurality of anti-disassembly assemblies are respectively installed on the mainboard, and the arrangement directions of at least two anti-disassembly assemblies are not parallel to each other; the anti-disassembly assembly comprises a driving assembly electrically connected to the main board and lock tongues connected to the driving assembly, and locking grooves right facing and matched with the lock tongues are formed in the inner wall of the shell. The fingerprint module is used for collecting fingerprint information and feeding back the fingerprint information to the mainboard; the main board is used for conducting driving control on the driving assembly based on the fingerprint information so that the lock tongues can get in and out of the corresponding locking grooves. Through the implementation of the scheme of the application, the anti-disassembly assembly is arranged between the shell and the mainboard, and the fingerprint module and the mainboard are matched to control the anti-disassembly assembly, so that only a specific user can perform normal disassembly operation, the electronic equipment can be effectively prevented from being maliciously disassembled, and hardware information of the mainboard is prevented from being stolen.

Description

Technical Field

[0001] This utility model belongs to the field of equipment information security technology, and in particular relates to an anti-tampering device and electronic equipment. Background Technology

[0002] With the continuous development of technology, various electronic products (such as mobile phones and wearable smart terminals) are being used in people's work and life, bringing them more convenience. However, most electronic devices in these technologies are directly detachable, posing a risk of malicious disassembly and theft of hardware information by unauthorized personnel, as well as the installation of illegal components. Furthermore, if the internal hardware information of an electronic device is lost, its security cannot be guaranteed. Therefore, the security performance of electronic devices needs to be improved. Utility Model Content

[0003] The technical objective of this utility model is to provide an anti-tampering device and electronic equipment, aiming to solve the problem that the security of hardware information on electronic equipment is difficult to guarantee in related technologies.

[0004] To solve the above-mentioned technical problems, this utility model is implemented as follows: Firstly, it provides an anti-tampering device for electronic devices. The anti-tampering device includes: a housing, a motherboard fixed within the housing, and fingerprint modules and multiple anti-tampering components respectively mounted on the motherboard, with at least two anti-tampering components arranged in non-parallel directions. Each anti-tampering component includes a drive component electrically connected to the motherboard and a locking tongue connected to the drive component. The inner wall of the housing has locking grooves that are respectively aligned with and adapted to each locking tongue. The fingerprint module is used to collect fingerprint information and feed it back to the motherboard. The motherboard is used to drive and control the drive component based on the fingerprint information, so that each locking tongue enters and exits the corresponding locking groove.

[0005] Furthermore, the drive assembly includes a fixing member fixed to the main board, a motor fixed inside the housing, a bearing connected to the output end of the motor, and a gear mounted on the outside of the bearing; the fixing member has a receiving groove adapted to the latch and used to receive the latch, and the groove wall of the receiving groove is also provided with a mounting groove adapted to the gear, the gear is mounted on the mounting groove, and the tooth profile of the gear extends into the receiving groove in the radial direction; the side wall of the latch is provided with a rack for meshing with the gear.

[0006] Furthermore, gears are provided on opposite sides of the locking tongue.

[0007] Furthermore, a damper is installed inside the gear.

[0008] Furthermore, the housing includes a bottom shell with a first side rail and a top shell with a second side rail. The top shell covers the bottom shell. The motherboard, anti-tamper components, and fingerprint module are all located within the receiving cavity formed by the bottom shell and the top shell. At least part of the latch extends and retracts parallel to the surface of the bottom shell. The first side rail is fixed to the inside of the second side rail. The first side rail has a locking hole that is directly opposite to the latch and has a matching shape. The inner wall of the second side rail has a locking groove that is directly opposite to the locking hole.

[0009] Furthermore, both the first and second side rails are rounded quadrilaterals, and there are two anti-tamper components. The extension and retraction directions of the corresponding two locking tongues are perpendicular to each other, and the locking grooves are located on the adjacent inner walls of the second side rail.

[0010] Furthermore, a locking groove is provided on the inner side of the bottom shell, and the position of the locking tongue in some anti-disassembly components is adapted to the locking groove on the bottom shell; and / or, a locking groove is provided on the inner side of the front shell, and the position of the locking tongue in some anti-disassembly components is adapted to the locking groove on the front shell.

[0011] Furthermore, the housing also has an assembly port. The fingerprint module includes a control unit fixedly connected to the motherboard and a fingerprint sensor connected to the control unit. The fingerprint sensor is fixed at the assembly port. The fingerprint sensor is used to collect fingerprint data, and the control unit is used to preprocess the fingerprint data and feed back the preprocessed fingerprint information to the motherboard.

[0012] Furthermore, it also includes a power supply unit fixed inside the housing, which is electrically connected to the motherboard.

[0013] On the other hand, an electronic device is provided, including the tamper-proof device as described in the first aspect above.

[0014] Compared with the prior art, the anti-tamper device and electronic equipment of this utility model have the following advantages: by setting anti-tamper components distributed in different directions on the motherboard, the locking tongues distributed in different directions can lock the host and the shell in different directions; the locking action of the anti-tamper components can be controlled by fingerprint recognition, and normal locking and unlocking operations cannot be achieved without user authorization. If someone attempts to forcibly disassemble, it will trigger the physical protection mechanism of the motherboard, that is, it will damage the motherboard structure, thereby preventing the theft of hardware information on the motherboard and improving the security performance of motherboard information. Attached Figure Description

[0015] Figure 1 This is a partial structural diagram of the anti-tampering device in the unlocked state in an embodiment of this utility model;

[0016] Figure 2 This is a partial structural diagram of the anti-tampering device in the locked state in an embodiment of this utility model.

[0017] In the accompanying drawings, the reference numerals indicate: 1, housing; 11, bottom housing; 111, locking hole; 12, front housing; 121, locking groove; 3, fastener; 31, receiving groove; 32, mounting groove; 4, gear; 5, locking tongue; 51, rack. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Example:

[0022] like Figure 1 and 2As shown, in this embodiment, the anti-tamper device is used in electronic devices. The anti-tamper device includes: a housing 1, a motherboard (not shown in the figure) fixed inside the housing 1, and fingerprint modules (not shown in the figure) and multiple anti-tamper components respectively mounted on the motherboard. At least two anti-tamper components are arranged in non-parallel directions. The anti-tamper components include a drive component electrically connected to the motherboard and a locking tongue 5 connected to the drive component. The inner wall of the housing 1 is provided with locking grooves 121 that are respectively aligned with and adapted to each locking tongue 5. The fingerprint module is used to collect fingerprint information and feed the fingerprint information back to the motherboard. The motherboard is used to drive and control the drive component based on the fingerprint information so that each locking tongue 5 enters and exits the corresponding locking groove 121.

[0023] Specifically, the electronic device in this embodiment can be a mobile phone, tablet, or wearable smart terminal, etc. These devices are equipped with a control motherboard, which integrates a large amount of hardware information and user information. The anti-tampering device can effectively improve the security of this information, reduce the risk of information theft or malicious tampering, and prevent the device from being maliciously disassembled and fitted with other harmful components. By setting anti-tampering components distributed in different directions on the motherboard, the locking tongues 5 distributed in different directions can lock the host and the housing 1 in different directions. The locking action of the anti-tampering components can be controlled by the fingerprint recognition results of the host and the fingerprint module. Normal locking and unlocking operations cannot be achieved without user authorization. If someone attempts to forcibly disassemble, the physical protection mechanism of the motherboard will be triggered, that is, the motherboard structure will be damaged, thereby preventing the theft of hardware information on the motherboard and improving the security performance of the motherboard information. It should be understood that the arrangement direction and distribution direction of the anti-tampering components mentioned in this embodiment can specifically refer to the extension and retraction direction of the locking tongue 5.

[0024] In this embodiment, the drive assembly includes a fixing member 3 fixed to the motherboard, a motor fixed inside the housing 1, a bearing connected to the output end of the motor, and a gear 4 mounted on the outside of the bearing. The fixing member 3 has a receiving groove 31 adapted to and for accommodating the latch 5. The groove wall of the receiving groove 31 also has a mounting groove 32 adapted to the gear 4. The gear 4 is mounted on the mounting groove 32, and the tooth profile of the gear 4 extends radially into the receiving groove 31. The side wall of the latch 5 is provided with a rack 51 for meshing with the gear 4. The anti-tampering device also includes a power supply unit fixed inside the housing 1, which is electrically connected to the motherboard.

[0025] Specifically, the power supply unit can be the battery of the electronic device. The motherboard, fingerprint module, and motor can all be connected to the power supply unit, thereby providing power to the motherboard, fingerprint module, motor, and other electrical components. In this embodiment, the motor can be fixed to the motherboard or to other components within the housing 1; no limitation is made here. The motherboard and motor can be connected using a flying wire connection. Multiple anti-tamper components are arranged in different positions and directions. That is, the motherboard has multiple fixing parts 3 distributed in different directions, and the extension and retraction directions of the corresponding locking tongue 5 include at least two non-parallel directions. Therefore, if someone attempts to forcibly disassemble, the locking tongues 5 arranged in different directions will form multiple mutual restrictions with the housing 1 inside the housing 1, preventing the housing 1 from separating from the motherboard. If forcibly separated, the motherboard structure will be damaged, preventing information theft. It is understood that in this embodiment, the gear 4 corresponding to each anti-tamper component can be one or more; no limitation is made here. When a single gear 4 is provided within an anti-tamper assembly, the portion of the latch 5 not containing the rack can either slide directly against the wall of the receiving groove 31 or not contact the wall of the receiving groove 31 at all; this is not a restriction. When multiple gears 4 are provided within an anti-tamper assembly, they can all be driving gears, or some can be driving gears while others serve as driven gears; this is not a restriction. It should be noted that the aforementioned driving gear refers to a gear connected to the output end of the motor via a bearing, and its rotation is controlled by the motor; the aforementioned driven gear refers to a gear 4 assembled by directly mounting a rotating shaft in the mounting groove 32. This type of gear is not controlled by the motor, and when the latch 5 is driven by the driving gear, the driven gear assists in the movement of the latch 5.

[0026] Furthermore, such as Figure 1 and 2 As shown, in this embodiment, gears 4 are respectively provided on opposite sides of the latch 5. The distribution of gears 4 on both sides of the latch 5 is controlled by corresponding motors, ensuring sufficient driving force for the latch 5 while making the overall driving force on the latch 5 more uniform, thus improving the stability of the latch 5's extension and retraction. In this embodiment, a damper is also installed inside the gear 4, and the damper can be installed at the center of the bearing. That is, the gear 4 in this embodiment can be a damping gear; the damper is installed in the gear 4, and when the gear 4 moves to the position without the rack 51, a damping effect is generated, causing the gear 4 to stop and jam in time, preventing the latch 5 from moving too far and colliding with the locking groove 121 or the receiving groove 31. Of course, in some other embodiments, the damper of the gear 4 does not need to be fixed to the center of the bearing; it can be installed at a farther position according to the actual assembly situation, producing a lever effect or reduction ratio, thereby reducing the required torque.

[0027] In this embodiment, the housing 1 includes a bottom housing 11 with a first side rail and a front housing 12 with a second side rail. The front housing 12 covers the bottom housing 11. The motherboard, anti-tamper components, and fingerprint module are all located within the receiving cavity formed by the bottom housing 11 and the front housing 12. At least part of the latch 5 extends and retracts parallel to the surface of the bottom housing 11. The first side rail is fixed to the inner side of the second side rail. The first side rail has a locking hole 111 that is directly opposite to the latch 5 and has a matching shape. The inner wall of the second side rail has a locking groove 121 that is directly opposite to the locking hole 111. Specifically, the housing surface referred to in this embodiment is the large flat surface of the electronic device. Multiple anti-tamper components can be arranged in different directions along the horizontal plane (i.e., the surface of the front housing 12 or the bottom housing 11); some anti-tamper components can be arranged in a direction parallel to the horizontal plane, and others can be arranged in the height direction. There are no restrictions here.

[0028] Furthermore, in some embodiments of this example, both the first and second side panels are rounded quadrilaterals, and there are two anti-tamper components. The extension and retraction directions of the corresponding two locking tongues 5 are perpendicular to each other, and the locking grooves 121 are respectively located on the inner walls of adjacent sides of the second side panel. Taking a mobile phone as an example, the two anti-tamper components can be respectively set along two adjacent sides of the mobile phone. That is, the side of the mobile phone is formed by the first and second side panels fastening together. Locking holes 111 and locking grooves 121 opposite to the locking holes 111 are respectively formed in two adjacent sides of the mobile phone. Thus, the corresponding locking tongues 5 can cooperate with the front shell 12 and the bottom shell 11 in different directions, so that when locked, the locking tongues 5 can firmly fix the motherboard, the front shell 12, and the bottom shell 11 into one piece. The anti-tamper components only perform locking or unlocking actions when the fingerprint matching and recognition are correct.

[0029] Furthermore, in some other embodiments of this embodiment, a locking groove 121 is also provided on the inner side of the shell surface of the bottom shell 11, and the position of the locking tongue 5 in some anti-tamper components is adapted to the locking groove 121 on the bottom shell 11; and / or, a locking groove 121 is also provided on the inner side of the inner shell surface of the front shell 12, and the position of the locking tongue 5 in some anti-tamper components is adapted to the locking groove 121 on the front shell 12. Specifically, some anti-tamper components are arranged in a direction parallel to the horizontal plane, that is, some locking tongues 5 that move horizontally can cooperate with the locking hole 111 and locking groove 121 on the side of the mobile phone; other anti-tamper components are arranged in the height direction, that is, some locking tongues 5 that move vertically in the height direction can cooperate with the locking groove 121 on the large surface of the mobile phone. Among them, the locking tongue 5 arranged in the height direction can move directly between the receiving groove 31 and the corresponding locking groove 121 without passing through the locking hole 111.

[0030] In this embodiment, the housing 1 also has an assembly port. The fingerprint module includes a control unit fixedly connected to the motherboard and a fingerprint head connected to the control unit. The fingerprint head is fixed at the assembly port. The fingerprint head is used to collect fingerprint data, and the control unit is used to preprocess the fingerprint data and feed back the preprocessed fingerprint information to the motherboard. Specifically, the fingerprint head can convert the fingerprint image data into a digital signal and send it to the control unit. The control unit can preprocess the collected data, including noise reduction and contrast enhancement, to obtain a high-quality fingerprint image. The motherboard controller can extract fingerprint features from the preprocessed fingerprint image and construct a corresponding fingerprint template. The fingerprint template is compared with a reference fingerprint template stored in the system to determine whether they match. Subsequent control can then be performed based on the determination result. For example, if the determination result is that the fingerprint template corresponding to the collected data matches the reference fingerprint template, the motherboard processor can coordinate with relevant instructions to control the motor to start working, thereby unlocking or locking the anti-tamper component and the housing 1. It is understood that in this embodiment, the control unit can be a separate control chip or a control module directly integrated with other modules on the motherboard (this control module is connected to the main control component on the motherboard), and no limitation is imposed here. In one specific implementation, a clearance area can be reserved on the motherboard, and the control unit can be bonded to the clearance area by adhesive, so as to achieve a stable fixation of the fingerprint module. The wiring distance is short, the interference and attenuation during signal transmission are small, and the fingerprint data can be processed quickly, reducing transmission delay.

[0031] In some specific implementations, when unlocking the device is required, the user can press their finger on the fingerprint sensor. The fingerprint sensor collects fingerprint information, and the motherboard and control unit can perform fingerprint matching based on the collected fingerprint information. If the matching result is correct (i.e., the fingerprint template corresponding to the collected data matches the reference fingerprint template), the motherboard controls the motor to start rotating counterclockwise, which in turn drives gear 4 to rotate counterclockwise, and the rack 51 moves inward (achieving unlocking). If the matching result is incorrect (i.e., the fingerprint template corresponding to the collected data does not match the reference fingerprint template), the device remains locked and unresponsive. To lock the device, the user can press the fingerprint sensor again, causing the motor to rotate clockwise, which in turn drives gear 4 to rotate clockwise, and the rack 51 moves outward (achieving locking).

[0032] In this embodiment, the electronic device includes an anti-tampering device. The electronic device in this embodiment can be a mobile phone, tablet, or wearable smart terminal, etc. These devices are equipped with a control motherboard, which integrates a large amount of hardware information and user information. The anti-tampering device effectively improves the security of this information, reduces the risk of information theft or malicious tampering, and prevents the device from being maliciously disassembled and having other harmful components installed.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-tampering device for electronic devices, characterized in that, The device includes a housing, a motherboard fixed within the housing, and fingerprint modules and multiple anti-tamper components mounted on the motherboard, with at least two of the anti-tamper components arranged in non-parallel directions. Each anti-tamper component includes a drive assembly electrically connected to the motherboard and a latch connected to the drive assembly. The inner wall of the housing has locking grooves that are respectively aligned with and adapted to each of the latches. The fingerprint module is used to collect fingerprint information and feed the fingerprint information back to the motherboard. The motherboard is used to drive and control the drive assembly based on the fingerprint information, so that each latch moves in and out of the corresponding locking groove.

2. The anti-tampering device according to claim 1, characterized in that, The drive assembly includes a fixing member fixed to the motherboard, a motor fixed inside the housing, a bearing connected to the output end of the motor, and a gear mounted on the outside of the bearing; the fixing member has a receiving groove adapted to the latch and used to receive the latch, and the groove wall of the receiving groove is also provided with a mounting groove adapted to the gear, the gear is mounted on the mounting groove, and the tooth profile of the gear extends into the receiving groove along the radial direction of the receiving groove; the side wall of the latch is provided with a rack for meshing with the gear.

3. The anti-tampering device according to claim 2, characterized in that, The gears are respectively provided on both sides of the locking tongue.

4. The anti-tampering device according to claim 2, characterized in that, A damper is installed inside the gear.

5. The anti-tampering device according to claim 1, characterized in that, The housing includes a bottom shell with a first side rail and a top shell with a second side rail. The bottom shell and the top shell are closed to form a receiving cavity. The motherboard, the anti-tamper component, and the fingerprint module are all installed in the receiving cavity. At least part of the extension and retraction direction of the latch is parallel to the shell surface of the bottom shell. The first side rail is fixed to the inner side of the second side rail. The first side rail has a locking hole that is directly opposite to the latch and has a shape that is adapted to it. The inner wall of the second side rail has a locking groove that is directly opposite to the locking hole.

6. The anti-tampering device according to claim 5, characterized in that, Both the first and second side rails are rounded quadrilaterals. There are two anti-tamper components. The extension and retraction directions of the two corresponding locking tongues are perpendicular to each other. The locking grooves are located on the inner walls of adjacent sides of the second side rail.

7. The anti-tampering device according to claim 5, characterized in that, The locking groove is also provided on the inner side of the shell surface of the bottom shell, and the position of the locking tongue in some of the anti-tamper components is adapted to the locking groove on the bottom shell; And / or, the locking groove is also provided on the inner side of the shell surface of the face shell, and the position of the locking tongue in some of the anti-tamper components is adapted to the locking groove on the face shell.

8. The anti-tampering device according to claim 1, characterized in that, The housing also has an assembly port. The fingerprint module includes a control unit fixedly connected to the motherboard and a fingerprint head connected to the control unit. The fingerprint head is fixed at the assembly port. The fingerprint head is used to collect fingerprint data, and the control unit is used to preprocess the fingerprint data and feed back the preprocessed fingerprint information to the motherboard.

9. The anti-tampering device according to claim 1, characterized in that, It also includes a power supply unit fixed inside the housing, which is electrically connected to the motherboard.

10. An electronic device, characterized in that, Includes the anti-tampering device as described in any one of claims 1-9.

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