Mobile terminal
Disclosed is a mobile terminal. The mobile terminal according to the present inventive concept, comprises: a case; a printed circuit board (PCB), which is arranged inside of the case, and on the surface of which is a temper detect pattern comprising first and second contact-type conductive patterns that are arranged adjacent to each other and a non-contact-type conductive pattern that is arranged apart from the first and second contact-type conductive patterns are provided; a detection circuit, which is electrically connected to the tamper detect pattern, for detecting whether the tamper detection pattern is conductive; and a pattern conduction module for controlling so that the first and second contact-type conductive patterns are conductive when the case is assembled, and the conduction of the first and second contact-type conductive patterns is released when the case is disassembled.
1. A mobile terminal comprising:
a case;
a printed circuit board (PCB) arranged inside the case and having a surface on which a tamper detect pattern is mounted, the tamper detect pattern comprising a first and a second contact-type conductive patterns that are arranged adjacent to each other and a non-contact-type conductive pattern arranged apart from the first and the second contact-type conductive patterns,
wherein the non-contact-type conductive pattern is electrically connected to the first contact-type conductive pattern or the second contact-type conductive pattern when a conductive liquid is injected into the temper detect pattern;
a detection circuit electrically connected to the tamper detect pattern and detecting whether the tamper detect pattern is conductive; and
a pattern conduction module arranged between the case and the PCB and controlling so that the first and the second contact-type conductive patterns are conductive when the case is assembled, and the conduction of the first and the second contact-type conductive patterns is released when the case is disassembled
wherein the non-contact-type conductive pattern is provided in a center area of the tamper detect pattern, and
wherein the first and the second contact-type conductive patterns are arranged around the non-contact-type conductive pattern that is used as an imaginary center, to be radially separated from each other.
2. The mobile terminal of claim 1 , wherein the tamper detect pattern has a concave shape such that a height of the tamper detect pattern decreases toward the center area.
3. The mobile terminal of claim 1 , wherein the first and the second contact-type conductive patterns have a ring shape.
4. The mobile terminal of claim 3 , wherein the pattern conduction module is formed of an elastic pattern conduction module that is elastically biased in a direction separated from any one of the first and the second contact-type conductive patterns.
5. The mobile terminal of claim 4 , wherein the elastic pattern conduction module comprises:
a module body;
a conductive fixed portion provided at one side of the module body and electrically connected and fixed to the first contact-type conductive pattern; and
a conductive connection portion provided in the module body and arranged adjacent to the conductive fixed portion to be selectively and electrically connected to or released from the second contact-type conductive pattern.
6. The mobile terminal of claim 5 , wherein the conductive fixed portion has a ring shape around the non-contact-type conductive pattern as an imaginary center.
7. The mobile terminal of claim 6 , wherein the conductive connection portion is coaxially arranged with the conductive fixed portion between the non-contact-type conductive pattern and the conductive fixed portion.
8. The mobile terminal of claim 7 , wherein the conductive connection portion protrudes from a lower surface of the module body toward the second contact-type conductive pattern.
9. The mobile terminal of claim 1 , wherein the tamper detect pattern has a circular shape and the pattern conduction module has a dome shape for shielding the tamper detect pattern, and the first and the second contact-type conductive patterns and the non-contact-type conductive pattern are formed of a conductive material.
10. The mobile terminal of claim 1 , wherein the non-contact-type conductive pattern is electrically connected to the first contact-type conductive pattern or the second contact-type conductive pattern when the conductive liquid is injected into the temper detect pattern and an electrical connection between the non-contact-type conductive pattern and the second contact-type conductive pattern or the first contact-type conductive pattern is detected by the detection circuit.