Negative ion air supply device

The utility model discloses a negative ion air supply device which comprises an air inlet pipe, an air outlet structure, an air pipe connecting part, a negative ion generator and a negative ion emitting head. One end of the air pipe connecting part is connected with the air inlet pipe, and the other end is connected with the air outlet structure; the air outlet structure comprises a pipe opening with the diameter gradually increased in the air outlet direction, and the pipe opening can penetrate through an opening in the ceiling partition plate. The negative ion generator is connected with a negative ion emitting head, and the negative ion emitting head is arranged in the center of the interior of the pipe opening in the air outlet direction. The negative ion emission efficiency can be improved, and the indoor negative ion concentration is more uniform. 本实用新型公开了一种负离子送风装置，包括进风管、出风结构、风管连接部、负离子发生器以及负离子发射头；所述风管连接部一端连接进风管，另一端连接出风结构；所述出风结构包括沿出风方向直径逐渐增大的管口，所述管口能够穿过天花板隔板上的开口；所述负离子发生器与负离子发射头连接，所述负离子发射头沿出风方向设置在所述管口内部正中