Blind mate thermal cooling solution for small form factor pluggable transceiver

Patent metadata

Field	Value
Publication number	US-11462852-B2
Application number	US-202016993976-A
Country	US
Kind code	B2
Filing date	Aug 14, 2020
Priority date	Aug 14, 2020
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

The technology relates to a cage configured to removably receive a module. The cage may include a frame comprising a plurality of panels joined to one another, a lever pivotably coupled to the frame, and a heatsink pivotably coupled to the lever. The panels together may extend around a longitudinal recess configured to receive the module therein. The longitudinal recess may define a longitudinal axis thereof. A first one of the panels may have an aperture defined therein in communication with the longitudinal recess. A first end of the lever may extend into the longitudinal recess. The heatsink may be pivotably coupled to a second end of the lever opposite the first end. The heatsink may be movable in a translation direction transverse to the longitudinal axis. The heatsink may be translatable between a first position outside of the longitudinal recess and a second position partially inside the longitudinal recess.

First claim

The invention claimed is:

1. A cage configured to removably receive a module, the cage comprising:
a frame comprising a plurality of panels joined to one another, the panels together extending around a longitudinal recess configured to receive the module therein, the longitudinal recess defining a longitudinal axis thereof; a first one of the panels having an aperture defined therein in communication with the longitudinal recess;
a lever pivotably coupled to the frame, a first end of the lever extending into the longitudinal recess;
a heatsink pivotably coupled to a second end of the lever, the second end being at a different angular position than the first end, the heatsink being movable in a translation direction transverse to the longitudinal axis, the heatsink being translatable between first and second positions as a result of travel of the first end within the longitudinal recess in a direction having an angular disposition relative to the longitudinal axis causing the lever to rotate relative to the frame, the first position being outside of the longitudinal recess, the second position being inside the aperture and partially inside the longitudinal recess.

2. The cage of claim 1 , wherein the lever is configured to rotate as a result of contact between an insertion end of the module and the first end of the lever.

3. A cage configured to removably receive a module, the cage comprising:
a frame comprising a plurality of panels joined to one another, the panels together extending around a longitudinal recess configured to receive the module therein, the longitudinal recess defining a longitudinal axis thereof; a first one of the panels having an aperture defined therein in communication with the longitudinal recess;
a lever pivotably coupled to the frame, a first end of the lever extending into the longitudinal recess;
a heatsink pivotably coupled to a second end of the lever, the second end being at a different angular position than the first end, the heatsink being movable in a translation direction transverse to the longitudinal axis, the heatsink being translatable between first and second positions as a result of the lever rotating relative to the frame, the first position being outside of the longitudinal recess, the second position being inside the aperture and partially inside the longitudinal recess;
wherein the lever is a first lever, the cage further comprising a second lever pivotably coupled to the frame, a first end of the second lever extending into the longitudinal recess, a second end of the second lever being pivotably coupled to the heatsink, the heatsink being translatable between the first and second positions as a result of both the first and second levers simultaneously rotating relative to the frame.

4. The cage of claim 1 , wherein the frame includes a fulcrum fixedly mounted to one or more of the panels, the lever being pivotably coupled to the fulcrum at a central portion of the lever located between the first and second ends.

5. The cage of claim 1 , wherein the longitudinal recess has an open end and a closed end spaced apart from one another along the longitudinal axis, and the first end of the lever extends through a second one of the panels that forms the closed end of the longitudinal recess.

6. The cage of claim 1 , wherein the translation direction is perpendicular to the longitudinal axis.

7. The cage of claim 1 , further comprising an energy storage element coupled to the lever and biasing the heatsink towards the first position, such that the energy storage element is configured to translate the heatsink from the second position to the first position when the module is removed from the frame.

8. The cage of claim 1 , further comprising a latch configured to be removably coupled to the module, the latch being coupled to the first end of the lever, such that the latch is configured to translate the heatsink from the second position towards the first position when the module is removed from the frame.

9. The cage of claim 1 , wherein the module is a small form factor high power pluggable transceiver.

10. A system comprising a circuit panel and the cage of claim 1 , wherein the frame is fixedly mounted to a major surface of the circuit panel at a peripheral edge thereof.

11. A method for removably inserting a module into a cage, the method comprising:
inserting the module along a longitudinal axis into a longitudinal recess extending within a frame until the module contacts a first end of a lever that extends into the longitudinal recess, the lever being pivotably coupled to the frame, the frame comprising a plurality of panels joined to one another and together extending around the longitudinal recess, a first one of the panels having an aperture defined therein in communication with the longitudinal recess;
rotating the lever relative to the frame; and
translating a heatsink in a translation direction transverse to the longitudinal axis from a first position outside of the longitudinal recess to a second position inside the aperture and partially inside the longitudinal recess and contacting the module, the heatsink being pivotably coupled to a second end of the lever, the second end being at a different angular position than the first end, the heatsink translating between the first and second positions as a result of the lever rotating relative to the frame caused by travel of the module along the longitudinal axis while the first end of the lever is in contact with the module.

12. The method of claim 11 , wherein the lever is rotated as a result of contact between an insertion end of the module and the first end of the lever, and the rotating of the lever relative to the frame begins when the insertion end of the module contacts the first end of the lever.

13. The method of claim 11 , wherein the lever is a first lever, the cage further comprising a second lever pivotably coupled to the frame, a first end of the second lever extending into the longitudinal recess, a second end of the second lever being pivotably coupled to the heatsink, the heatsink translating between the first and second positions as a result of both the first and second levers simultaneously rotating relative to the frame.

14. The method of claim 11 , wherein the frame includes a fulcrum fixedly mounted to one or more of the panels, the lever being pivotably coupled to the fulcrum at a central portion of the lever located between the first and second ends.

15. The method of claim 11 , wherein the longitudinal recess has an open end and a closed end spaced apart from one another along the longitudinal axis, and the first end of the lever extends through a second one of the panels that forms the closed end of the longitudinal recess.

16. The method of claim 1 , wherein the translation direction is perpendicular to the longitudinal axis.

17. The method of claim 11 , further comprising removing the module from the longitudinal recess and translating the heatsink from the second position to the first position as a result of the lever rotating relative to the frame, the translation of the heatsink from the second position to the first position being accomplished by release of energy stored in an energy storage component coupled to the lever and biasing the heatsink towards the first position.

18. The method of claim 11 , further comprising removing the module from the longitudinal recess and translating the heatsink from the second position to the first position as a result of the lever rotating relative to the frame, the translation of the heatsink from the

Assignees

• Google Llc

Inventors

• Chiu Jerry
• Beauchemin Melanie

Classifications

• H10W40/641

  Snap-on arrangements, e.g. clips · CPC title

• H01R13/502 Primary

  composed of different pieces (H01R13/514 takes precedence) · CPC title

• G02B6/4269 Primary

  with heat sinks or radiation fins · CPC title

• H05K7/20

  Modifications to facilitate cooling, ventilating, or heating · CPC title

• H05K7/2049

  Pressing means used to urge contact, e.g. springs · CPC title