Junction box for solar modules

H - Electricity – 05 – K

Patent

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Details

H05K 7/20 (2006.01) H01L 31/048 (2006.01) H01R 9/22 (2006.01) H05K 5/00 (2006.01)

Patent

CA 2719063

The invention relates to a junction box which safely carries off the heat produced in the bypass diodes (1), MOSFETs or suitable power semi-conductors of a solar module. Said junction box comprises a housing (2, 3) that consists of a base body (2) and a housing cover (3) that can be placed thereon. At least one receiving chamber (5) is arranged on at least one lateral wall of the base body (2) and protrudes in a distal manner from the lateral wall. In the at least one receiving chamber (5), at least one electric component (1) that is surrounded by an insulating cover (7) is arranged, said component resting firmly on the inner side of the receiving chamber (5) and on the housing cover (3). The cover (3) is made of extruded aluminium, comprises cooling ribs and overlaps the contour of the base body (2). The junction box can be used for solar modules with bypass flows from upto 16 A and higher.

L'invention concerne une boîte de jonction, au moyen de laquelle la chaleur générée dans les diodes de dérivation (1), les MOSFET ou des semi-conducteurs de puissance correspondants d'un module solaire est particulièrement bien dissipée. La boîte de jonction est constituée d'un boîtier (2, 3) composé d'un élément de base (2) et d'un couvercle de boîtier (3) placé sur cet élément de base. Au moins un compartiment de réception (5), situé sur au moins une paroi latérale de l'élément de base (2), fait distalement saillie de ladite paroi latérale. Dans ledit au moins un compartiment de réception (5) se trouve au moins un composant électrique (1) enveloppé d'une gaine isolante (7), lequel composant repose à demeure contre les faces intérieures du compartiment de réception (5) et contre le couvercle (3) du boîtier. Le couvercle (3) est constitué d'aluminium extrudé, présente des ailettes de refroidissement et dépasse du contour de l'élément de base (2). La boîte de jonction est destinée à des modules solaires avec des courants dérivés de 16 A et plus.

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