CN218996037U - Anti-disassembly component applied to intelligent terminal and intelligent terminal - Google Patents

Abstract

The application discloses an anti-disassembly subassembly and intelligent terminal for intelligent terminal. The intelligent terminal comprises a middle frame, an anti-disassembly circuit and a main board. The mainboard is arranged on the surface of the middle frame, and the anti-disassembly circuit is connected with the anti-disassembly component. The tamper-evident assembly includes a body portion and at least one tamper-evident portion. The main body part is arranged on the surface of the middle frame. The anti-disassembly part is connected with the main body part. The middle frame is provided with at least one through hole, and the anti-disassembly parts are arranged in one-to-one correspondence with the through holes. The anti-disassembly part is fixed on the main board through the through hole. The structure of preventing tearing open the subassembly can be simplified to this application, occupation space is reduced.

Description

Anti-disassembly component applied to intelligent terminal and intelligent terminal

Technical Field

The application relates to the technical field of safety disassembly prevention, in particular to a disassembly prevention assembly applied to an intelligent terminal and the intelligent terminal.

Background

The conventional anti-disassembly component of the intelligent terminal generally uses schemes of various circuit combinations such as a micro switch series circuit, a photosensitive switch circuit, an MCU detection circuit and the like to sense whether the intelligent terminal has an illegal disassembly phenomenon. The design of the anti-disassembly component is complex and requires more structural space.

Disclosure of Invention

In view of this, the technical problem that this application mainly solves is to provide an anti-disassembly subassembly and intelligent terminal who is applied to intelligent terminal, can simplify the structure of anti-disassembly subassembly, reduces occupation space.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: an anti-disassembly component applied to an intelligent terminal is provided. The intelligent terminal comprises a middle frame, an anti-disassembly circuit and a main board. The mainboard is arranged on the surface of the middle frame, and the anti-disassembly circuit is connected with the anti-disassembly component. The tamper-evident assembly includes a body portion and at least one tamper-evident portion. The main body part is arranged on the surface of the middle frame. The anti-disassembly part is connected with the main body part. The middle frame is provided with at least one through hole, and the anti-disassembly parts are arranged in one-to-one correspondence with the through holes. The anti-disassembly part is fixed on the main board through the through hole.

In some embodiments of the present application, the main body portion is provided with a first connection line, the anti-disassembly portion is provided with a second connection line, and the second connection line and the first connection line can be connected in series.

In some embodiments of the present application, the body portion includes a first end and a second end. The first end is communicated with the second end through a first connecting wire and a second connecting wire.

In some embodiments of the present application, the tamper proof circuit is connected to the first end and the second end, respectively, for detecting whether the first connection line and the second connection line are disconnected.

In some embodiments of the present application, a tamper circuit includes a control chip, a first resistor, and a second resistor. The detection end of the control chip is connected with the first end through a first resistor. One end of the second resistor is connected with the first end, the other end of the second resistor is grounded, and the second end is grounded.

In some embodiments of the present application, the control chip detects a voltage value of the first end through the first resistor, and detects whether the first connection line and the second connection line are disconnected through the voltage value.

In some embodiments of the present application, the control chip is configured to clear data of the intelligent terminal when detecting that the first connection line and the second connection line are disconnected.

In some embodiments of the application, the intelligent terminal further comprises a shielding cover arranged on the main board, and the anti-disassembly part is fixed on the shielding cover.

In some embodiments of the present application, the main board is directly detached from the middle frame, and the anti-detachment portion and the main body portion are torn.

In order to solve the technical problem, another technical scheme adopted by the application is to provide an intelligent terminal, which comprises a middle frame, a main board and the anti-disassembly component in any one of the embodiments. The main board is arranged on the surface of the middle frame.

The beneficial effects of this application are: unlike the prior art, the anti-disassembly component applied to the intelligent terminal provided by the application comprises a main body part and at least one anti-disassembly part. The intelligent terminal includes the center, prevents tearing open circuit and mainboard, and the mainboard sets up on the surface of center, prevents tearing open the circuit and prevents tearing open the subassembly and be connected. The main body part is arranged on the surface of the middle frame. The anti-disassembly part is connected with the main body part. The middle frame is provided with at least one through hole, and the anti-disassembly parts are arranged in one-to-one correspondence with the through holes. The anti-disassembly part is fixed on the main board through the through hole. By the mode, the structure of the anti-disassembly component is simplified, and the occupied space of the anti-disassembly component in the intelligent terminal is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic diagram of a middle frame structure (including an anti-disassembly component) of an embodiment of an intelligent terminal of the present application;

FIG. 2 is a schematic view of an embodiment of a tamper evident assembly of the present application;

FIG. 3 is a schematic diagram of a tamper-proof circuit (including a tamper-proof component) in an embodiment of a smart terminal of the present application;

fig. 4 is a schematic diagram of a main board structure (including an anti-disassembly component) of an embodiment of the intelligent terminal.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, are within the scope of the present application based on the embodiments herein.

Please refer to fig. 1 and 2. Fig. 1 is a schematic structural diagram of a middle frame 20 of an embodiment of an intelligent terminal of the present application, and fig. 2 is a schematic structural diagram of an embodiment of an anti-disassembly component 30 of the present application. The anti-disassembly component 30 of the embodiment is applied to an intelligent terminal, which can be a smart phone, an interphone, a tablet or the like.

The intelligent terminal comprises a middle frame 20, a disassembly prevention circuit 40 and a main board 10. The main board 10 is disposed on the surface of the middle frame 20. In some embodiments, the intelligent terminal further comprises a screen component, and interaction with the user is achieved through the screen component. The screen assembly and the main board 10 may be provided to the upper and lower surfaces of the middle frame 20 or the opposite surfaces of the middle frame 20, respectively. The screen assembly may include a display screen and a capacitive touch screen, among others. The screen assembly may be secured to the center frame 20 by glue.

The tamper resistant circuit 40 is connected to the tamper resistant assembly 30. Illustratively, the tamper-proof circuit 40 is disposed on the motherboard 10 and is capable of performing a corresponding action in response to a change in the connection state of the tamper-proof assembly 30 to the tamper-proof circuit 40. The details of the tamper-evident circuit 40 are described below.

The tamper evident assembly 30 comprises a main body portion 31 and at least one tamper evident portion 32, e.g. the tamper evident assembly 30 comprises two tamper evident portions 32. In some embodiments, the main body 31 is disposed on a surface of the middle frame 20 facing away from the main board 10, i.e., the main body 31 and the main board 10 are disposed on opposite surfaces of the middle frame 20. The detachment prevention portion 32 is connected to the main body portion 31. The detachment prevention portion 32 and the main body portion 31 may be integrally provided, or may be independent of each other.

In some embodiments, the middle frame 20 is provided with at least one through hole 21, and the anti-disassembly parts 32 are arranged in one-to-one correspondence with the through holes 21; the detachment prevention portion 32 is fixed to the main board 10 through the through hole 21. Specifically, the smart terminal can observe whether the tamper proof portion 32 is fixed to the main board 10 through the through hole 21 at the time of assembly. At the same time, the through hole 21 is used for maintaining the pressure of the anti-disassembly part 32, so that the anti-disassembly part 32 is fixed with the main board 10 more firmly. The main body 31 and the detachment prevention portion 32 are fixed to the middle frame 20 and the main board 10, respectively, and when the main board 10 is detached from the middle frame 20, the detachment prevention portion 32 is separated from the main body 31. Specifically, when the detachment prevention portion 32 and the main body portion 31 are provided separately from each other, the detachment prevention portion 32 and the main body portion 31 may be connected by glue or a connection member. The fixing force between the detachment prevention portion 32 and the main body portion 31 is smaller than the fixing force between the main board 10 and the middle frame 20, respectively, so that the detachment prevention portion 32 is separated from the main body portion 31 when the main board 10 is detached from the middle frame 20. Illustratively, the tamper evident portion 32 of the tamper evident assembly 30 may be formed from a relatively easily breakable material. In this embodiment, the detachment prevention portion 32 of the detachment prevention assembly 30 is separated from the main body portion 31 whenever the main board 10 is directly detached from the middle frame 20. The structure of the anti-disassembly component 30 is simplified, and the occupied space of the anti-disassembly component 30 in the intelligent terminal is reduced.

The purpose of preventing the main board 10 from being detached from the middle frame 20 is to prevent data leakage in the main board 10. Therefore, a device such as an inductor may be disposed in the smart terminal to sense whether the main body 31 and the tamper-proof portion 32 of the tamper-proof assembly 30 are separated. If the sensor senses that the main body part 31 is separated from the anti-disassembly part 32, the data stored in the main board 10 are cleared, and data leakage is avoided.

Further, the main body 31 and the detachment prevention portion 32 are each provided with an adhesion area, and the adhesive substance is provided corresponding to the adhesion area. The main body 31 and the detachable portion 32 are fixed to the center 20 and the main board 10, respectively, by an adhesive substance.

The shape of the through hole 21 may be the same as the shape of the detachment prevention portion 32, or may be larger than the shape of the detachment prevention portion 32, so that the detachment prevention portion 32 is fixed to the main board 10 through the through hole 21. The shape and number of the detachment prevention parts 32 may be set according to actual conditions.

In some embodiments, the main body 31 and the main board 10 are disposed on the same surface of the middle frame 20, that is, the main body 31 is disposed between the middle frame 20 and the main board 10, so that the main body 31 can be better hidden, the security of the intelligent terminal is improved, and the anti-disassembling component 30 is prevented from being damaged.

Alternatively, the main body 31 of the tamper-evident assembly 30 and the area where the tamper-evident portion 32 is attached are provided with release paper, avoiding the adhesive substance being destroyed prior to assembly. Specifically, when the intelligent terminal is assembled, the main body 31 of the anti-disassembly component 30 is fixed with the middle frame 20. Then, the release paper of the detachment prevention portion 32 is torn off, and the middle frame 20 is covered on the main board 10. In order to avoid that the anti-disassembly portion 32 is not in contact with the main board 10 or is not in complete contact with the main board 10, the effect of fixing the anti-disassembly portion 32 and the main board 10 is affected, a user can squeeze the anti-disassembly portion 32 on the main board 10 through the through hole 21 from one side of the middle frame 20 away from the main board 10, so that the anti-disassembly portion 32 can be better attached to the main board 10. Because the anti-disassembly component 30 is clamped between the middle frame 20 and the main board 10, the anti-disassembly component 30 has better concealment and safety, and is not easy to disassemble after being installed.

As shown in fig. 2, in some embodiments, the body portion 31 is provided with a first connection line 311, and the tamper proof portion 32 is provided with a second connection line 321, the second connection line 321 being connectable in series with the first connection line 311. When the body 31 and the detachment prevention portion 32 are integrally provided, the first connection line 311 and the second connection line 321 may be integrally provided in series. When the main body 31 and the detachment prevention portion 32 are independent from each other and connected by glue or a connector, the second connection line 321 and the first connection line 311 can also be connected in series. The first connection line 311 and the second connection line 321 may be made of the same material. Alternatively, the first connecting line 311 and the second connecting line 321 are made of a material with better conductivity, so as to reduce energy consumption in the disassembly preventing assembly 30 and save energy.

Illustratively, the tamper evident assembly 30 includes three tamper evident portions 32, with the second connecting line 321 within each tamper evident portion 32 being connected in series with the first connecting line 311 within the body portion 31. When only one of the tamper-proof portions 32 is separated from the main body portion 31 due to tearing, the second connecting line 321 is disconnected from the first connecting line 311.

In some embodiments, the body portion 31 includes a first end 31a and a second end 31b. The first end 31a and the second end 31b may be in communication with different connection lines to meet different requirements. For example, the first end 31a and the second end 31b may be connected to different resistances by different connection lines, respectively.

The first end 31a communicates with the second end 31b through the first connection line 311 and the second connection line 321. When the detachment prevention portion 32 is separated from the main body portion 31 due to the tearing, the first connecting line 311 is disconnected from the second connecting line 321, and the first end 31a and the second end 31b cannot communicate. In order to timely sense whether the anti-disassembling portion 32 is torn, the second connecting lines 321 may be distributed at the edge position of the anti-disassembling portion 32, so that when a small portion of the anti-disassembling portion 32 is torn, the second connecting lines 321 can be disconnected from the first connecting lines 311.

Referring to fig. 3, fig. 3 is a schematic diagram of a tamper-proof circuit 40 (including a tamper-proof component 30) in an embodiment of a smart terminal according to the present application.

In some embodiments, the tamper-proof circuit 40 is connected to the first and second ends 31a and 31b, respectively, for detecting whether the first and second connection lines 311 and 321 are disconnected. After the anti-disassembly apparatus 30 fixes the relative positions of the main board 10 and the middle frame 20, the first end 31a and the second end 31b of the anti-disassembly apparatus 30 are communicated with the anti-disassembly circuit 40. The tamper proof circuit 40 can detect whether the first connection line 311 and the second connection line 321 are disconnected in real time, and when the tamper proof circuit 40 detects that the first connection line 311 and the second connection line 321 are disconnected, a corresponding action is performed.

In some embodiments, tamper evident circuit 40 includes a control chip 41, a first resistor 42, and a second resistor 43. The resistances of the first resistor 42 and the second resistor 43 may be the same or different, and the user may set the resistances according to actual needs.

The detection terminal of the control chip 41 is connected to the first terminal 31a through a first resistor 42. One end of the second resistor 43 is connected to the first end 31a, the other end of the second resistor 43 is grounded, and the second end 31b is grounded. Specifically, the resistor of the first resistor 42 is pulled up and is provided in the control chip 41. The second resistor 43 is pulled down and is disposed on a Printed Circuit Board (PCBA) on the periphery of the control chip 41. The resistor is arranged in a pull-up and pull-down mode, and stability of the circuit can be improved. When the first connecting wire 311 and the second connecting wire 321 of the anti-disassembly component 30 are communicated, the resistance is small, and the influence on the anti-disassembly circuit 40 is negligible. When the first connection line 311 is disconnected from the second connection line 321, the resistance is infinite.

In some embodiments, the control chip 41 detects the voltage value of the first terminal 31a through the first resistor 42, and detects whether the first connection line 311 and the second connection line 321 are disconnected through the voltage value. Illustratively, the control chip 41 has an ADC analog-to-digital converter therein capable of converting the voltage value of the first terminal 31a detected by the first resistor 42 into a digital signal representative of the voltage value. When the first connection line 311 and the second connection line 321 are connected or disconnected, the resistance of the tamper-proof assembly 30 may be changed, and the voltage value may be changed differently accordingly. The control chip 41 determines whether the first connection line 311 and the second connection line 321 are disconnected according to different voltage values.

In some embodiments, the control chip 41 is configured to clear data of the smart terminal upon detecting that the first connection line 311 and the second connection line 321 are disconnected. Illustratively, the main board 10 has a storage unit therein for storing data of the intelligent terminal. In order to avoid that the main board 10 of the intelligent terminal is illegally disassembled after the intelligent terminal is lost or stolen, so that the data in the storage unit is stolen, the control chip 41 can clear the data of the intelligent terminal. Specifically, in order to read the data in the memory unit, the main board 10 must be separated from the middle frame 20. When the main board 10 is separated from the middle frame 20, the detachment prevention portion 32 may be broken, resulting in disconnection of the first connection line 311 from the second connection line 321. The control chip 41 detects that the voltage of the anti-dismantling circuit 40 changes, and judges that the first connecting wire 311 and the second connecting wire 321 are disconnected, namely the data of the intelligent terminal are cleared.

Please refer to fig. 3 and fig. 4 together. Fig. 4 is a schematic structural diagram of a motherboard 10 (including a tamper-proof assembly 30) according to an embodiment of the smart terminal of the present application.

In some embodiments, the smart terminal further includes a shielding case 50 disposed on the main board 10, and the tamper proof portion 32 is fixed to the shielding case 50. Specifically, in order to avoid the influence of electromagnetic waves on the circuits in the main board 10 or to prevent electromagnetic waves generated by electronic components on the main board 10 from radiating outward, a shield case 50 is provided on the main board 10. Illustratively, the shielding case 50 covers over the anti-disassembly circuit 40, thereby preventing the anti-disassembly circuit 40 from being damaged, and improving the stability of the control chip 41 for detecting whether the first connection line 311 and the second connection line 321 are disconnected.

Optionally, the shield 50 is soldered to the motherboard 10. The shield case 50 may be provided with an adhesive substance so that the detachment prevention portion 32 and the shield case 50 can be fixed more firmly.

In some embodiments, the main panel 10 is directly detached from the middle frame 20, and the tamper evident portion 32 tears away from the main body portion 31. Illustratively, the tamper evident portion 32 may be made of a material that breaks more easily than the body portion 31. When the main board 10 is directly detached from the middle frame 20, the anti-detaching portion 32 is pulled by an external force to break. After the control chip 41 detects that the first connection line 311 and the second connection line 321 are disconnected, the data of the intelligent terminal will be cleared.

Of course, after the main board 10 is taken out for maintenance and other operations during normal disassembly, the anti-disassembly part 32 and the main body part 31 will be torn, and the data in the intelligent terminal will be cleared, so that the data backup can be done in advance. At the same time, after the repair is completed, it is necessary to replace the tamper evident assembly 30 with a new one so that the tamper evident circuit 40 can continue to function normally.

In order to solve the above technical problem, another technical solution adopted in the present application is to provide an intelligent terminal, which includes a middle frame 20, a main board 10, and the anti-disassembly component 30 described in any of the foregoing embodiments.

Illustratively, the main body 31 of the tamper-proof assembly 30 and the main board 10 are disposed on the same surface of the middle frame 20, and the tamper-proof portion 32 is fixed to the main board 10 through the through hole 21. The motherboard 10 has a tamper-proof circuit 40 therein. When the main plate 10 is directly detached from the middle frame 20, the detachment prevention portion 32 is torn from the main body portion 31. After the anti-disassembly circuit 40 detects that the second connecting wire 321 in the anti-disassembly portion 32 is disconnected from the first connecting wire 311 in the main body portion 31, data in the intelligent terminal is cleared, and data leakage is avoided.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.

Claims (10)

1. Be applied to intelligent terminal's anti-disassembly subassembly, its characterized in that, intelligent terminal includes center (20), anti-disassembly circuit (40) and mainboard (10), mainboard (10) set up in on the surface of center (20), anti-disassembly circuit (40) with anti-disassembly subassembly is connected, anti-disassembly subassembly (30) include:

a main body (31) provided on the surface of the middle frame (20);

at least one anti-disassembly portion (32) is connected with the main body portion (31), the middle frame (20) is provided with at least one through hole (21), the anti-disassembly portions (32) are arranged in one-to-one correspondence with the through holes (21), and the anti-disassembly portions (32) are fixed on the main board (10) through the through holes (21).

2. The tamper evident assembly according to claim 1, wherein the body portion (31) is provided with a first connection line (311), the tamper evident portion (32) is provided with a second connection line (321), the second connection line (321) being connectable in series with the first connection line (311).

3. The tamper evident assembly according to claim 2, wherein the body portion (31) comprises a first end (31 a) and a second end (31 b), the first end (31 a) being in communication with the second end (31 b) through the first connection line (311) and the second connection line (321).

4. A tamper evident assembly according to claim 3, wherein the tamper evident circuit (40) is connected to the first end (31 a) and the second end (31 b) respectively for detecting whether the first connection line (311) and the second connection line (321) are disconnected.

5. The disassembly prevention assembly according to claim 4, wherein the disassembly prevention circuit (40) comprises a control chip (41), a first resistor (42) and a second resistor (43), wherein a detection end of the control chip (41) is connected with the first end (31 a) through the first resistor (42), one end of the second resistor (43) is connected with the first end (31 a), the other end of the second resistor (43) is grounded, and the second end (31 b) is grounded.

6. The tamper evident assembly according to claim 5, wherein the control chip (41) detects the voltage value of the first end (31 a) through the first resistor (42), and detects whether the first connection line (311) and the second connection line (321) are disconnected through the voltage value.

7. The tamper evident assembly according to claim 5, wherein the control chip (41) is adapted to clear the data of the intelligent terminal upon detecting that the first connection line (311) and the second connection line (321) are disconnected.

8. The tamper evident assembly of any one of claims 1-7, wherein the intelligent terminal further comprises a shield (50) disposed on the motherboard (10), the tamper evident portion (32) being secured to the shield (50).

9. The tamper evident assembly according to claim 8, wherein the main panel (10) is detached directly from the central frame (20), the tamper evident portion (32) tearing from the main body portion (31).

10. An intelligent terminal, characterized by comprising:

a middle frame (20);

a main board (10), wherein the main board (10) is arranged on the surface of the middle frame (20);

the tamper evident assembly (30) according to any one of claims 1 to 9.

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