US 8,947,881 B2 · Housing for an on-board electronic card

Abstract

A housing (1) for at least one electronic card (2), designed for the aeronautics field, of the type having a standardized width and including two lateral guides designed to work together with slides provided on the inner surfaces of an electronics bay, includes two half-shells, upper (4) and lower (5), pressed together at the lateral guides; the lower half-shell includes at least one bearing area (10) forming the housing for electronic cards; elements (19) for pressing each electronic card (2) in each corresponding housing and for pressing at least one heat sink (16) against the upper surface of at least one electronic card; the function of the body (5) is to take into account the mechanical stresses linked to the electronic cards hosted within the housing, and the function of the cover (4) is to ensure adequate thermal conductivity to allow heat produced by an electronic card in operation to be dissipated.

Claims19

Dependent claims

A housing for at least one electronic card comprising heat dissipating components on an upper surface, the housing comprising:

at least one heat sink;
and
two half-shells that respectively define a cover and a body pressed together at lateral guides,
the body comprising at least one bearing area forming a housing area for the at least one electronic card, and a pressing means that presses the at least one heat sink against an upper surface of the at least one electronic card, wherein,
the pressing means further presses the at least one electronic card in the housing as the pressing means bears i) firstly, on a lower surface of the cover, ii) secondly, on the at least one electronic card, and thirdly, on an upper part of a base of the heat sink,
the pressing means is made of a first material with a thermal conductivity equivalent or better than a thermal conductivity of copper, and
the cover comprises a blank made of a second material having a thermal conductivity equivalent or better than the thermal conductivity of copper.

4 more elements

A housing, comprising:

two electronic cards comprising heat dissipating components on an upper surface of each electronic card;
two half-shells respectively providing a cover and a body, the cover providing electromagnetic shielding of the electronic cards, the cover comprising a blank made of a material with a thermal conductivity equivalent to or greater than a thermal conductivity of copper;
and
lateral guides fitted on opposite lateral surfaces of the body and the cover, the lateral guides pressing the cover and body together with the cover resting on the body, the lateral guides configured to slide the housing, in a closed condition, into an electronic bay, wherein,
the body comprises two hollow housings that are open facing the cover, and a central wall that separates the hollow housings from each other, the central wall having an upper edge facing the cover, each of the electronic cards resting over one of the hollow housings with a lower edge of each electronic card resting on a respective part of the upper edge of the central wall,
each hollow housing comprises bearing points on which a corresponding one of the electronic cards rest;
two heat sinks, each heat sink associated with a respective one of the electronic cards;
and
a pressing device pressing each heat sink against an upper surface of the heat dissipating components of the respective one of the electronic cards, the pressing device being located between a lower surface of the cover and an upper surface of each electronic card and providing a spring that bears firstly on the lower surface of the cover, secondly on the upper surface of the respective one of the electronic cards, and thirdly against an upper part of a base of the heat sink,
wherein the pressing device is made of a material with a thermal conductivity equivalent or better than a thermal conductivity of copper, and
wherein the cover comprises a blank made of a material with a thermal conductivity equivalent or better than a thermal conductivity of copper.

8 more elements

Dependencies are inferred from the claim text.

Housing for an on-board electronic card

Life of this patent

Housing for an on-board electronic card

Life of this patent

Abstract

Claims19