Aircraft air inlet comprising at least a main de-icing system and at least one secondary de-icing system positioned at a splice plate

An air inlet of an aircraft propulsion assembly, the air inlet comprising:

• a lip, and
• a main de-icing system configured to at least partially de-ice the lip,
• said lip including first and second panels, each panel having an inner face and an outer face, at least one splice plate, which is positioned to straddle the first and second panels and which extends between first and second lateral edges and has a contact face including a first part facing a first region of the inner face of the first panel, and a second part facing a second region of the inner face of the second panel, said lip also comprising fixing elements connecting the splice plate and the first or second panels, and
• wherein the air inlet further comprises at least one secondary de-icing system which includes at least one heat exchanger comprising a main layer, which is made of a thermally conductive material and comprises a through-opening for each fixing element passing therethrough, said main layer being interposed at least partially between the splice plate and at least one of the first and second panels.