Fixing mechanism and electronic device capable of assembling and disassembling an expansion card module

Patent metadata

Field	Value
Publication number	US-9454190-B2
Application number	US-201514589968-A
Country	US
Kind code	B2
Filing date	Jan 5, 2015
Priority date	Jul 16, 2014
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

A fixing mechanism which is capable of assembling an expansion card module includes a base, a latch and a resilient component. The expansion card module slidably inserts into the base. The latch pivots to an accommodating portion of the base to switch between a first position and a second position. The latch includes a pressing portion and a pushing portion connected with each other. The pressing portion presses a side of the expansion card module since the latch is switched to the first position. The pushing portion pushes an opposite side of the expansion card module since the latch is switched to the second position, so as to upwardly move the expansion card module relative to the base. The resilient component is located inside the accommodating portion to actuate the latch and drives the latch to stay at the second position.

First claim

What is claimed is:

1. A fixing mechanism capable of assembling and disassembling an expansion card module, comprising:
a base, comprising:
a connecting portion;
a sliding slot structure disposed on the connecting portion, the expansion card module being adapted to slidably move relative to the connecting portion by the sliding slot structure;
an accommodating portion disposed on an end of the connecting portion;

a latch pivoting inside the accommodating portion to rotatably switch between a first position and a second position, the latch comprising:
a pressing portion for pressing a side of the expansion card module since the latch is switched to the first position; and
a pushing portion bending from the pressing portion, the pushing portion being adapted to push an opposite side of the expansion card module since the latch is switched from the first position to the second position, so as to move the expansion card module relative to the sliding slot structure; and

a resilient component located inside the accommodating portion to actuate the latch, the resilient component driving the latch to rotate and to stay at the second position.

2. The fixing mechanism of claim 1 , wherein the connecting portion comprises a first surface and a second surface opposite to each other, the sliding slot structure is disposed on the first surface, the base further comprises at least one hook disposed on the second surface, the connecting portion is fixed on a bracket by the hook.

3. The fixing mechanism of claim 1 , wherein the latch further comprises a resilient portion, two ends of the resilient portion are respectively connected to the pressing portion and the pushing portion in a resilient deformable manner.

4. The fixing mechanism of claim 3 , wherein the latch further comprises a contacting portion stretching from the pushing portion to contact against the resilient portion and to constrain deformation of the resilient portion.

5. The fixing mechanism of claim 1 , wherein the latch further comprises a clamping portion disposed on the pressing portion, the clamping portion inserts into a clamping slot on the expansion card module since the pressing portion presses the expansion card module.

6. The fixing mechanism of claim 1 , wherein the resilient component is an elastic piece structure with a first end and a second end opposite to each other, the first end is located inside the accommodating portion, and the second end movably contacts against the pushing portion.

7. The fixing mechanism of claim 1 , wherein the accommodating portion comprises a pivoting hole, the latch further comprises an axle structure adjacent to the pushing portion, the fixing mechanism further comprises a rotary shaft piercing through the pivoting hole and the axle structure.

8. The fixing mechanism of claim 7 , wherein the rotary shaft comprises a body and an engaging portion, the engaging portion is disposed on an end of the body and engaged with the pivoting hole, a radial dimension of the engaging portion is greater than a radial dimension of the body.

9. The fixing mechanism of claim 7 , wherein the latch further comprises a handle disposed on an end of the pressing portion opposite to the pushing portion.

10. The fixing mechanism of claim 9 , wherein a distance between the handle and the axle structure is greater than a distance between the pushing portion and the axle structure.

11. The fixing mechanism of claim 1 , wherein the base further comprises a sliding shaft disposed inside the accommodating portion, the fixing mechanism further comprises a sliding component movably disposed inside the accommodating portion, an axle hole structure is formed on the sliding component, the sliding component is slidably disposed on the sliding shaft via the axle hole structure.

12. The fixing mechanism of claim 11 , wherein a fixing hole is formed on the sliding component, the latch further comprises an axle structure adjacent to the pushing portion and rotatably inserting into the fixing hole.

13. The fixing mechanism of claim 11 , wherein the resilient component is a compressive spring disposed on the axle hole structure.

14. The fixing mechanism of claim 11 , further comprising:
a covering component disposed on the base, two ends of the resilient component respectively contacting against the covering component and the sliding component.

15. The fixing mechanism of claim 14 , further comprising:
a constraining shaft piercing through the base, the sliding component and the covering component.

16. The fixing mechanism of claim 15 , wherein the constraining shaft comprises a body and an engaging portion, the engaging portion is disposed on an end of the body and engaged with the base, a radial dimension of the engaging portion is greater than a radial dimension of the body.

17. The fixing mechanism of claim 11 , wherein the latch further comprises a bridging portion, two ends of the bridging portion are respectively connected to the pushing portion and the pressing portion.

18. The fixing mechanism of claim 17 , wherein the bridging portion comprises two ribs stretching from the pressing portion, the pushing portion is a pillar structure disposed between the two ribs.

19. The fixing mechanism of claim 11 , wherein the latch further comprises a handle disposed on an end of the pressing portion opposite to the pushing portion.

20. The fixing mechanism of claim 19 , wherein the latch further comprises a rotatable fulcrum portion, a distance between the rotatable fulcrum portion and the axle structure is smaller than the rotatable fulcrum portion and the handle, and a distance between the rotatable fulcrum portion and the pushing portion is smaller than a distance between the rotatable fulcrum portion and the handle.

21. The fixing mechanism of claim 20 , wherein the rotatable fulcrum portion is a corner protrusion formed between two surface structures connected with each other.

22. The fixing mechanism of claim 20 , wherein the latch further comprises a stopping surface structure connected with the rotatable fulcrum portion.

23. The fixing mechanism of claim 20 , wherein the rotatable fulcrum portion contacts a contacting surface of the accommodating portion and the sliding component does not contact the contacting surface when the latch is switched to the first position.

24. The fixing mechanism of claim 12 , wherein the stopping surface structure contacts a contacting surface of the accommodating portion since the latch is switched to the second position.

25. An electronic device capable of assembling and disassembling an expansion card module, comprising:
a bracket;
a circuit board disposed on a bottom of the bracket, the circuit board having an inserting slot, the expansion card module inserting into the inserting slot to electrically connect to the circuit board; and
a fixing mechanism disposed on the bracket for assembly and disassembly of the expansion card module, the fixing mechanism comprising:
a base, comprising:
a connecting portion;
a sliding slot structure disposed on the connecting portion, the expansion card module being adapted to slidably move relative to the connecting portion by the sliding slot structure;
an accommodating portion disposed on an end of the connecting portion;

a latch pivoting inside the accommodating portion to rotatably switch between a first position and a second position, the latch comprising:
a pressing por

Assignees

• Wistron Corp

Inventors

• Mao zhong-hui
• Zhang Peng-Cheng
• Chen Yu
• Zou zhi-peng
• Du Shan-Gen

Classifications

• H05K7/1487

  Blade assemblies, e.g. blade cases or inner arrangements within a blade · CPC title

• G06F1/185 Primary

  Mounting of expansion boards · CPC title

• H05K7/1405

  by clips or resilient members, e.g. hooks · CPC title