Linear vibrator

1. A linear vibrator comprising:

a base having a plurality of sidewalls for forming a hollow space and an opening communicating with the hollow space;

a suspension fixed on the sidewalls of the base;

an oscillating portion suspended in the hollow space by the suspension;

wherein, the suspension defines a flat part exposed out of the opening for directly connecting with an outside component, a connecting portion bent downward from the flat part, and a spring portion extended horizontally in a direction orthogonal to an axis of the linear vibrator from the end of the connecting portion.

2. The linear vibrator as described in claim 1 , wherein the spring portion defines an inner ring portion, an outer ring portion, and a plurality of arcuate portions connected with the inner and outer ring portions and set in a space between these ring portions, respectively.

3. The linear vibrator as described in claim 2 , wherein the linear vibrator defines a magnetic system having a yoke and a magnet successively stacked in the yoke.

4. The linear vibrator as described in claim 2 , wherein the connecting portion connecting with the inner ring portion.

5. The linear vibrator as described in claim 1 , wherein the base further defines a plurality of engaging portions extending from the inner peripheral surface toward the hollow space at a lower end for engaging with the lateral of the yoke and a protruding portion protruding from the engaging portion for limiting the movement of the yoke towards the suspension.

6. The linear vibrator as described in claim 5 , wherein the base further defines a step portion extending from the inner peripheral surface of the sidewalls toward the outer peripheral surface of the sidewalls at an upper end thereof.

7. The linear vibrator as described in claim 6 , wherein the linear vibrator defines a securing plate mounted on the step portion for fixing the suspension on the step portion firmly.

8. The linear vibrator as described in claim 7 , wherein the linear vibrator further defines a contact and a PCB connected with the contact.

9. The linear vibrator as described in claim 8 , wherein the base defines a receiving groove extending from the outer peripheral surface thereof toward the inner peripheral surface thereof for receiving the contact and the contact defines a fixing portion retained in the receiving groove of the base and a soldering portion bent from the fixing portion for being soldered on the PCB.

10. The linear vibrator as described in claim 9 , wherein the soldering portion is configured to be a plate.

11. The linear vibrator as described in claim 1 , wherein at least a part of the connecting portion is projected from the opening.

12. A linear vibrator comprising:

a base having a plurality of sidewalls for forming a hollow space and an opening communicating with the hollow space;

a suspension fixed on the sidewalls of the base and defined a flat part exposed out of the opening for directly connecting with an outside component, a connecting portion bent downward from the flat part, a projecting portion connected with the connecting portion and protruded out of the periphery of the connecting portion in the direction orthogonal to the axis of the linear vibrator, and a spring portion separated from the projecting portion and engaged with the projecting portion;

an oscillating portion attached on the suspension.

13. The linear vibrator as described in claim 12 , wherein the spring portion is parallel to the flat part.

14. The linear vibrator as described in claim 13 , wherein the linear vibrator defines a magnetic system having a yoke and a magnet successively stacked in the yoke in coaxial relation to the oscillating portion.

15. The linear vibrator as described in claim 12 , the spring portion defines an inner ring portion for abutting against the upper surface of the projecting portion, an outer ring portion having a diameter that is larger than that of the inner ring portion, and a plurality of arcuate portions connected with the inner and outer ring portions and set in a space between these ring portions, respectively.

16. The linear vibrator as described in claim 15 , wherein the inner ring portion has a through hole for receiving the connecting portion and a surrounding portion surrounding the through hole and connected with an upper surface of the projection portion.

17. The linear vibrator as described in claim 12 , wherein the base further defines a protruding portion extending from the inner peripheral surface toward the hollow space for limiting the movement of the yoke toward the suspension.

18. The linear vibrator as described in claim 17 , wherein the base further defines a plurality of engaging portions for engaging with the lateral of the yoke and the distance from the inner peripheral of protruding portion to the outer peripheral of the base is greater than that of the inner peripheral of engaging portion to the outer peripheral of the base.

19. The linear vibrator as described in claim 18 , wherein the base defines a step portion extending from the inner peripheral surface of the sidewalls toward the outer peripheral surface of the sidewalls.

20. The linear vibrator as described in claim 19 , wherein the linear vibrator further defines a securing plate mounted on the step portion for fixing the suspension on the step portion firmly.

21. The linear vibrator as described in claim 20 , wherein each projecting portion is separated from others.

22. The linear vibrator as described in claim 21 , wherein the linear vibrator further defines a contact and a PCB connected with the contact.

23. The linear vibrator as described in claim 22 , wherein the base defines a receiving groove extending from the outer peripheral surface thereof toward the inner peripheral surface thereof for receiving the contact and the contact defines a fixing portion retained in the receiving groove of the base and a soldering portion bent from the fixing portion for being soldered on the PCB.

24. The linear vibrator as described in claim 12 , wherein at least a part of the connecting portion is projected from the opening.