Thermal diffusion device and electronic apparatus

The utility model relates to a thermal diffusion device and electronic equipment. The utility model provides a heat diffusion device capable of improving the maximum heat transfer capacity. A heat diffusion device (1) is provided with: a housing (10) having a first inner wall surface (11a) and a second inner wall surface (12a) which face each other in the thickness direction (Z); a working medium (20) sealed in the internal space of the housing (10); and a core body (30) disposed in the internal space of the frame body (10). The core body (30) includes a support body (31) in contact with the first inner wall surface (11a), and a perforated body (32) in contact with the support body (31). The perforated body (32) has a through-hole (33) penetrating in the thickness direction (Z). Protrusions (34) are provided on the periphery of the through-hole (33) in the direction approaching the second inner wall surface (12a). 本实用新型涉及热扩散器件以及电子设备。本实用新型提供一种能够提高最大热输送量的热扩散器件。热扩散器件(1)具备：框体(10)，具有在厚度方向(Z)上对置的第一内壁面(11a)及第二内壁面(12