Circuit board retainer

1. A circuit board retainer, comprising:

a base for attaching to a first circuit board;

opposing spatially separated first and second support members extending from one side of the base, the first support member having a latch portion and a terrace adjacent to the latch portion for supporting a portion of a second circuit board thereon; and

an arm having a free first end with a projection extending from a surface thereof and a second end pivotally attached to an edge of the second support member for rotational movement between an open position and a closed position, a section of the arm between the first free end and the second end latching onto the latch portion of the first support member when the arm is rotated into the closed position, the free first end of the arm extending beyond the first support member for pressing the projection against a surface of the second circuit board when the section of the arm between the first free end and the second end is latched onto the latch portion of the first support member.

2. The retainer of claim 1 , further comprising a snap extending from a second side of the base for snapping into an opening in the first circuit board for securely attaching the base to the first circuit board.

3. The retainer of claim 1 , wherein the terrace is shaped to prevent rotational movement of the second circuit board supported thereon.

4. The retainer of claim 1 , further comprising a living hinge attaching the arm to the edge of the second support member.

5. The retainer of claim 1 , wherein the arm is bow-shaped.

6. The retainer of claim 1 , wherein the section of the arm between the first free end and the second end has an opening formed therein for accepting the latch portion of the first support member.

7. The retainer of claim 1 , wherein the retainer is integrally constructed of a plastic material.

8. An electronics module, comprising:

a first circuit board having a surface with an electrical connector attached thereto;

a second circuit board having a surface with an electrical connector attached thereto and mated to the electrical connector of the first circuit board; and

a retainer having a base securely attached to the first circuit board, opposing spatially separated first and second support members extending from one side of the base, and an arm having a free first end and a second end pivotally attached to an edge of the second support member for rotational movement between an open position and a closed position, the first support member having a latch portion and a terrace for setting a portion of the second circuit board thereon, an intermediate section of the arm latching onto the latch portion of the first support member when the arm is rotated into the closed position, the free first end of the arm extending beyond the first support member and pressing against an opposite surface of the second circuit board to urge the mated electrical connectors together when the arm is latched to the first support member.

9. The electronics module of claim 8 , wherein the free first end has a projection extending from a surface thereof that presses against the opposite surface of the second circuit board when the arm is latched in the closed position.

10. The electronics module of claim 8 , wherein the projection presses against a location on the opposite surface of the second circuit board that is directly opposite the electrical connector on the second circuit board.

11. The electronics module of claim 8 , further comprising a snap extending from a second side of the base for snapping into an opening in the first circuit board for securely attaching the base to the first circuit board.

12. The electronics module of claim 8 , wherein the terrace is shaped to prevent rotational movement of the second circuit board supported thereby.

13. The electronics module of claim 8 , further comprising a living hinge attaching the arm to the edge of the second support member.

14. The electronics module of claim 8 , wherein the arm is bow-shaped.

15. The electronics module of claim 8 , wherein the section of the arm between the first free end and the second end has an opening formed therein for accepting the latch portion of the first support member.

16. The electronics module of claim 8 , wherein the retainer is integrally constructed of a plastic material.

17. A circuit board retainer for maintaining an electrical connector on a first circuit board in a mated condition with an electrical connector on a second circuit board, comprising:

means for securing the retainer to the first circuit board, the securing means including a base;

means, connected to the base, for supporting a portion of the second circuit board adjacent and substantially parallel to the first circuit board such that the electrical connectors can make an electrical connection with each other;

means for urging the second circuit board toward the first circuit board to maintain the electrical connection between the electrical connectors; and

means for latching the urging means onto the supporting means.

18. The circuit board retainer of claim 17 , wherein the urging means contacts one side of the second circuit board at a location that is directly opposite the electrical connector on an opposite side of the second circuit board.

19. The circuit board retainer of claim 17 , further comprising means, connected to the base, for supporting the urging means, and means for rotatably connecting the urging means to the means for supporting the urging means.