Holding structures for optical elements of an optical connector
An optical connector is constituted of a connector housing, a shielding case, and optical elements. The shielding case is split into a case main body section and a heatsink mechanism section, both joined together to constitute housing recesses. While the case main body section and the heatsink mechanism section are joined together, element main body sections are held between them. A non-joint plane of the heatsink mechanism section is housed in a case housing recess of the connector housing in an outwardly exposed state. A corrugated heatsink fin section is formed in the non-joint plane. The housing recesses into which the element main body sections are to be housed are partitioned from each other.
1. An optical connector comprising:
a connector housing having at least one case housing recess,
a closure section that is not covered by any other structure of the connector housing and is exposed to surrounding ambient air to facilitate radiant heat transfer to the surrounding ambient air;
an element main body section of an optical element, and
a conductive shielding case which is connected to a ground circuit, the shielding case comprising a case main body section, the case main body section and the closure section are joined together to constitute at least one housing recess to substantially enclose the element main body section of the optical element;
wherein
the connector housing is joined together with the closure section to enclose the at least one case housing recess,
the case main body section is held in the at least one case housing recess of the connector housing by the closure section,
the element main body section is held between the connector housing and the closure section by the case main body section,
a depth of the at least one housing recess is slightly smaller than a cross directional thickness of the element main body section such that the element main body section is retained in the at least one housing recess in a sandwiched manner by the closure section, and
the closure section is tightly in contact with the element main body section forming a thermally-conductive path to transfer heat from the element main body section to the surrounding ambient air via the closure section.
2. The optical connector according to claim 1 , wherein the shielding case is housed in the at least one case housing recess of the connector housing.
3. The optical connector according to claim 1 , wherein
the closure section comprises a joint plane facing the case main body section and a non-joint plane facing opposite to the joint plane; and
a corrugated heatsink fin is formed in the non-joint plane of the closure section.
4. The optical connector according to claim 1 , wherein the closure section is made of metal material.
5. The optical connector according to claim 1 , wherein the case main body section and the closure section are made of at least one of a metal material or a conductive resin.
6. The optical connector according to claim 1 , wherein the optical element includes a plurality of optical elements,
the at least one element recess includes a plurality of element recesses into which the plurality of optical elements are housed, and
the plurality of element recesses are partitioned from each other in the case main body section.