Low-spill coupling assembly

A coupling system, comprising:

• a male coupling device configured to releasably mate within a female coupling device to create a fluid flow path for liquid cooling of electronics, wherein the male coupling device includes:
• a male main body defining:
• a front face with a front opening;
• a first exterior circumferential surface extending rearward of the front face toward an outwardly ramped surface of a first exterior circumferential shoulder that ramps outwardly such that the first exterior circumferential shoulder is positioned rearward of the front face by a first axial length;
• an exterior circumferential groove positioned rearwardly of the outwardly ramped surface of the first exterior circumferential shoulder such that the exterior circumferential groove is at least partially defined by a circumferential groove surface having an outer groove diameter smaller than a maximum outer diameter of the first exterior circumferential shoulder, and a rear groove shoulder that ramps outwardly such that the rear groove shoulder is positioned rearward of the circumferential groove surface;
• a second exterior circumferential surface positioned rearwardly of the rear groove shoulder and extending rearwardly toward a rear radial surface for a second axial length less than the first axial length such that the circumferential groove surface of the exterior circumferential groove is located axially closer to the rear radial surface than to the front face of the male main body;
• the rear radial surface extending radially outward toward an outermost exterior surface of the male main body which defines a maximum lateral width of the male main body;
• and an interior fluid passageway which has a first bore diameter extending rearward to an interior shoulder transitioning to a larger second bore diameter that extends rearward for a majority of an overall axial length of the male main body;
• a rear exterior connection end portion positioned rearwardly of the outermost exterior surface of the male main body and positioned rearwardly of a rear-facing radial surface such that the rear exterior connection end portion is configured to remain external to the female coupling device and couple with a fluid line;
• and
• a valve that is longitudinally slidable within the interior fluid passageway of the male main body and configured to abut the interior shoulder so that a portion of the valve releasably occludes fluid flow in the interior fluid passageway of the male main body, the valve having a front-most valve face with a diameter greater than half a diameter of the first exterior circumferential surface of the male main body, wherein the valve is biased by a valve spring to urge the valve toward a forward position in which the front-most valve face is aligned with the front face of the male main body and the valve is entirely forward of the outwardly ramped surface of the first exterior circumferential shoulder, wherein the valve is longitudinally slidable from the forward position to a rearward position in which the valve is located radially inward of the outwardly ramped surface of the first exterior circumferential shoulder and the valve spring is positioned entirely rearward of the outwardly ramped surface of the first exterior circumferential shoulder,
• wherein the first exterior circumferential shoulder of the male main body is positioned rearward of the front opening by the first axial length such that the valve of the male coupling device is configured to engage against a stem of the female coupling device while the maximum outer diameter of the first exterior circumferential shoulder of the male main body remains external to the female coupling device.

A coupling system, comprising:

• a male coupling device configured to releasably mate within a female coupling device to create a fluid flow path for liquid cooling of electronics, wherein the male coupling device includes:
• a male main body defining:
• a front face with a front opening;
• an exterior circumferential surface extending rearward from the front face toward an outwardly ramped surface of an exterior circumferential shoulder such that a front-most end of the exterior circumferential shoulder is positioned rearward of the front face by a first axial length;
• an exterior circumferential groove positioned rearwardly of the outwardly ramped surface of the exterior circumferential shoulder such that the exterior circumferential groove is at least partially defined by a first radial surface, a circumferential groove surface extending rearwardly from the first radial surface, and a rear shoulder surface extending rearwardly and outwardly from the circumferential groove surface;
• a second radial surface positioned rearward of the exterior circumferential groove and parallel to the first radial surface of the exterior circumferential groove such that the second radial surface extends extending radially outward toward an outermost exterior surface of the male main body, the second radial surface being positioned rearward of the front-most end of the exterior circumferential shoulder by a second axial length that is less than the first axial length;
• and an interior fluid passageway which has a first bore diameter extending rearward to an interior shoulder transitioning to a larger second bore diameter that extends rearward for a majority of an overall axial length of the male main body;
• a rear exterior connection end portion positioned rearwardly of the outermost exterior surface of the male main body and positioned rearwardly of a rear-facing radial surface such that the rear exterior connection end portion is configured to couple with a fluid line;
• and
• a valve that is longitudinally slidable within the interior fluid passageway of the male main body and configured to abut the interior shoulder so that a portion of the valve releasably occludes the interior fluid passageway of the male main body, the valve having a front-most valve face with a diameter greater than half a diameter of the exterior circumferential surface of male main body, wherein the valve is biased by a valve spring to urge the valve toward a forward position in which the front-most valve face is aligned with the front face of the male main body and the valve is entirely forward of the outwardly ramped surface of the exterior circumferential shoulder, wherein the valve is longitudinally slidable from the forward position to a rearward position in which at least a portion of the valve is located radially inward of the outwardly ramped surface of the exterior circumferential shoulder and the valve spring is positioned entirely rearward of the outwardly ramped surface of the exterior circumferential shoulder, and wherein the valve includes a valve ring seal, and when the valve is arranged in the forward position, both (i) the valve ring seal releasably engages with interior fluid passageway along the first bore diameter and (ii) the valve spring extends forward of the outwardly ramped surface of the exterior circumferential shoulder.

A coupling system, comprising:

• a male coupling device configured to releasably mate within a female coupling device to create a fluid flow path for liquid cooling of electronics, wherein the male coupling device includes:
• a male main body defining:
• a front face with a front opening;
• a first exterior circumferential surface extending rearward of the front face toward an outwardly ramped surface of a first exterior circumferential shoulder that ramps outwardly such that a front-most end of the first exterior circumferential shoulder is positioned rearward of the front face by a first axial length;
• an exterior circumferential groove positioned rearwardly of the outwardly ramped surface of the first exterior circumferential shoulder such that the exterior circumferential groove is at least partially defined by a circumferential groove surface having a groove diameter smaller than a maximum outer diameter of the first exterior circumferential shoulder, and a rear groove shoulder that ramps outwardly such that the rear groove shoulder is positioned rearward of the circumferential groove surface;
• a second exterior circumferential surface positioned rearwardly of the rear groove shoulder and extending rearwardly toward a rear radial surface that extends radially outward toward an outermost exterior surface of the male main body which defines a maximum lateral width of the male main body, the rear radial surface being positioned rearward of the front-most end of the first exterior circumferential shoulder by a second axial length that is less than the first axial length;
• and an interior fluid passageway which has a first bore diameter extending rearward to an interior shoulder transitioning to a larger second bore diameter that extends rearward for a majority of an overall axial length of the male main body;
• a rear exterior connection end portion positioned rearwardly of the outermost exterior surface of the male main body and positioned rearwardly of a rear-facing radial surface such that the rear exterior connection end portion is configured to couple with a fluid line;
• and
• a valve that is longitudinally slidable within the interior fluid passageway of the male main body and configured to abut the interior shoulder so that a portion of the valve releasably occludes fluid flow in the interior fluid passageway of the male main body, the valve having a front-most valve face with a diameter greater than half a diameter of the first exterior circumferential surface of the male main body, wherein the valve is biased by a valve spring to urge the valve toward a forward position in which the front-most valve face is aligned with the front face of the male main body and the valve is entirely forward of the outwardly ramped surface of the first exterior circumferential shoulder, wherein the valve is longitudinally slidable from the forward position to a rearward position in which at least a portion of the valve is located radially inward of the outwardly ramped surface of the first exterior circumferential shoulder and the valve spring is positioned entirely rearward of the outwardly ramped surface of the first exterior circumferential shoulder, and wherein the valve includes a valve ring seal, and when the valve is arranged in the forward position, both (i) the valve ring seal releasably engages with the interior fluid passageway along the first bore diameter and (ii) the valve spring extends forward of the outwardly ramped surface of the exterior circumferential shoulder.