Thermally conductive flexible member for heat transfer
View Patent ↗An example embodiment includes a thermal conduction system for dissipating thermal energy generated by operation of an optical subassembly that is disposed within a shell of a communication module. The thermal conduction system can include a thermally conductive flexible member that contacts the optical subassembly and the shell of the communication module. By contacting the optical subassembly and the shell, the thermal energy generated by operation of the optical subassembly can transfer from the optical subassembly to the shell. The thermally conductive flexible member defines thermally conductive flexible member holes that correspond to pins extending from the optical subassembly. The pins pass through the thermally conductive flexible member holes enabling the thermally conductive flexible member to contact the optical subassembly.
1. A thermal conduction system for thermal energy dissipation, the thermal conduction system comprising:
a thermally conductive flexible member that contacts an optical subassembly that is positioned in a shell of a communication module and that contacts the shell such that the thermal energy generated by operation of the optical subassembly transfers from the optical subassembly to the shell;
thermally conductive flexible member holes that are defined by the thermally conductive flexible member, the thermally conductive flexible member holes corresponding to pins that extend from the optical subassembly such that the pins pass through the thermally conductive flexible member holes and enable the thermally conductive flexible member to contact an exterior header surface of a header of the optical subassembly; and
a gasket that defines gasket holes, the gasket holes corresponding to the thermally conductive flexible member holes and to flexible circuit holes of a flexible circuit, the gasket configured to be positioned between the thermally conductive flexible member and the flexible circuit to reduce electrical conduction between the thermally conductive flexible member and the flexible circuit.
2. The thermal conduction system of claim 1 , further comprising:
a thermally conductive pad that contacts the optical subassembly and the shell of the communication module such that the thermal energy generated by operation of the optical subassembly transfers from the optical subassembly to the shell.
3. The thermal conduction system of claim 2 , wherein:
the optical subassembly includes a circumferential exterior header surface, and
the thermally conductive pad contacts the optical subassembly at the circumferential exterior header surface.
4. The thermal conduction system of claim 3 , further comprising adhesive tape that defines tape holes that correspond to the gasket holes and the thermally conductive flexible member holes, wherein the adhesive tape affixes the thermally conductive flexible member to the optical subassembly.
5. The thermal conduction system of claim 4 , further comprising a second strip of conductive adhesive tape that is placed on a transmitting section of the thermally conductive flexible member, wherein the second strip of conductive adhesive tape affixes the thermally conductive flexible member to the shell.
6. The thermal conduction system of claim 1 wherein the thermally conductive flexible member is bent such that a transmitting section of the thermally conductive flexible member is substantially parallel to and contacts the shell when the communication module is assembled.
7. The thermal conduction system of claim 1 , wherein the thermally conductive flexible member includes two or more layers affixed together.
8. The thermal conduction system of claim 3 , wherein:
the header of the optical subassembly is composed of a first material; and
at least one of the thermally conductive flexible member or the thermally conductive pad is composed of a second material, the second material having a higher thermal conductivity than the first material.
9. The thermal conduction system of claim 1 , wherein:
the thermally conductive flexible member defines a slot; and
the slot extends from one of the thermally conductive flexible member holes.
10. The thermal conduction system of claim 1 , wherein:
thermally conductive flexible member includes a receiving section that is circular and a transmitting portion that is rectangular;
the thermally conductive flexible member holes are defined in the receiving section; and
the transmitting portion contacts the shell.
11. A thermal conduction system comprising:
a thermally conductive flexible member that contacts an optical subassembly that is positioned in a shell of a communication module and that contacts the shell such that a portion of thermal energy generated by operation of the optical subassembly transfers from the optical subassembly to the shell via thermal conduction, the thermally conductive flexible member defining thermally conductive flexible member holes that correspond to pins that extend from the optical subassembly such that the pins pass through the thermally conductive flexible member holes and enable a portion of the thermally conductive flexible member to contact an exterior header surface of a header of the optical subassembly;
a gasket that defines gasket holes, the gasket holes corresponding to the thermally conductive flexible member holes and to flexible circuit holes of a flexible circuit, the gasket configured to be positioned between the thermally conductive flexible member and the flexible circuit to reduce electrical conduction between the thermally conductive flexible member and the flexible circuit; and
a thermally conductive pad that contacts a circumferential exterior header surface of the header of the optical subassembly and the shell of the communication module such that another portion of the thermal energy generated by operation of the optical subassembly transfers from the optical subassembly to the shell via conduction through the thermally conductive pad.
12. The thermal conduction system of claim 11 , further comprising adhesive tape that defines tape holes that correspond to the gasket holes and the thermally conductive flexible member holes, wherein the adhesive tape is configured to affix the thermally conductive flexible member to the exterior header surface of the header.
13. The thermal conduction system of claim 12 , further comprising a second strip of conductive adhesive tape that is placed on a transmitting section of the thermally conductive flexible member opposite the portion of the thermally conductive flexible member in which the thermally conductive flexible member holes are defined, wherein the second strip of conductive adhesive tape is configured to affix the transmitting section of thermally conductive flexible member to the shell.
14. The thermal conduction system of claim 13 , wherein the transmitting section of thermally conductive flexible member is bent such that second strip of conductive adhesive tape is substantially parallel to and contacts the shell when the communication module is assembled.
15. The thermal conduction system of claim 11 , wherein the thermally conductive flexible member includes two or more layers affixed together.
16. The thermal conduction system of claim 11 , wherein:
the header of the optical subassembly is composed of a first material; and
at least one of the thermally conductive flexible member and the thermally conductive pad is composed of a second material, and
the second material having a higher thermal conductivity than the first material.
17. The thermal conduction system of claim 11 , wherein the thermally conductive flexible member defines a slot that extends from one of the thermally conductive flexible member holes.