Contact terminal

1. A contact terminal comprising:

a contact pin having a curved portion at its one end; and

a plate spring having a first support and a second support for supporting the contact pin, the first support and the second support having a first end and a second end extended therefrom, respectively, and wherein the first support and the second support form a closed loop configuration at the first end and a detached cantilevered configuration at the second end, and

wherein a portion of the plate spring is connected to a circuit board, and wherein the plate spring provides a resilient force as the first support is in contact with the circuit board and the contact pin supported by the second support electrically contacts an exterior unit.

2. The contact terminal as claimed in claim 1 , further comprising:

an engaging recess formed in the contact pin; and

a pair of fastening pieces formed in the plate spring,

wherein the fastening pieces are engaged with the engaging recess to fix the contact pin to the plate spring.

3. The contact terminal as claimed in claim 2 , wherein the engaging recess is formed on an outer peripheral surface of one end of the contact pin.

4. The contact terminal as claimed in claim 1 , wherein the first support having a curved shape and the second support linearly extending from one end of the first support.

5. The contact terminal as claimed in claim 4 , further comprising:

a engaging recess formed in the contact pin; and

a pair of fastening pieces extending from one end of the second support,

wherein the contact pin is situated between the fastening pieces, and the fastening pieces are engaged with the engaging recess to fix the contact pin to the plate spring.

6. The contact terminal as claimed in claim 5 , wherein the engaging recess is formed on an outer peripheral surface of one end of the contact pin.

7. The contact terminal as claimed in claim 4 , wherein the first support is connected to the circuit board and the second support is disposed in parallel to the circuit board.

8. The contact terminal as claimed in claim 4 , further comprising:

a folding portion is formed a folding portion of the plate spring such as one end of the first support extends in parallel to the second support to face each other; and

coupling holes formed in the folding portion to pass through the folding portion.

9. The contact terminal as claimed in claim 4 , further comprising a pair of reinforcing portions extending from opposite sides of the first support to face each other.

10. The contact terminal as claimed in claim 1 , wherein one end of the contact pin is engaged with the plate spring, and wherein an opposite end the contact pin is curved.

11. The contact terminal as claimed in claim 1 , the contact pin and the plate spring are housed within a portable terminal.

12. The contact terminal as claimed in claim 1 , the contact pin and the plate spring are housed within a docking cradle.

13. The contact terminal as claimed in claim 1 , wherein a load applied to the plate spring is selectively adjusted by adjusting a length of the contact pin.

14. A terminal comprising:

a housing; and

a contact terminal having a plate spring providing a resilient force and a contact pin supported by the plate spring, the plate spring having a first support and a second support for supporting the contact pin, the first support and the second support having a first end and a second end extended therefrom, respectively, and wherein the first support and the second support form a closed loop configuration at the first end and a detached cantilevered configuration at the second end, and

wherein the plate spring is mounted within a body of the housing, and a portion of the contact pin protrudes to exterior of the body housing, such that a portion of the plate spring is connected to a circuit board and the portion of the contact pin electrically connects to a battery pack or a battery cover.

15. The terminal as claimed in claim 14 , further comprising:

an engaging recess formed in the contact pin; and

a pair of fastening pieces formed in the plate spring,

wherein the fastening pieces are engaged with the engaging recess to fix the contact pin to the plate spring.

16. The terminal as claimed in claim 14 , wherein the plate spring has a first support having a curved shape and a second support linearly extending from one end of the first support.

17. The terminal as claimed in claim 16 , further comprising:

a folding portion extending from the body housing; and

coupling holes formed in the first and the second supports to engage with the folding portion.

18. The terminal as claimed in claim 16 , further comprising a pair of reinforcing portions extending from opposite sides of the first support to prevent a deformation of the contact terminal.

19. The terminal as claimed in claim 14 , wherein a load applied to the plate spring is selectively adjusted by adjusting a length of the contact pin.