Waterproof pulse igniter

The utility model discloses a waterproof pulse igniter, which comprises a hollow shell, an inner cavity of which is provided with an electronic element and is provided with an opening; the top cover is detachably connected with the hollow shell and can cover the opening, and a circle of first waterproof groove is concavely formed in the edge of the opening; the buckling position is arranged on the inner wall of the first waterproof groove; and the buckle is arranged on the top cover and is matched with the buckling position. During installation, the buckle is buckled and matched with the buckle position in the first waterproof groove, and the edge of the top cover can cover the first waterproof groove, so that the situation that water flows into the inner cavity from a gap between the hollow shell and the top cover is reduced, and the waterproof performance is further improved. 本实用新型公开了一种防水脉冲点火器，包括：中空壳体，内腔设有电子元件，具有一开口；顶盖，与所述中空壳体可拆卸连接，能够封盖所述开口，所述开口的边缘凹设有一圈第一防水槽；扣位，开设于所述第一防水槽的内壁；卡扣，设于所述顶盖上、与所述扣位配合。安装时，卡扣在第一防水槽内