The invention relates to a heat dissipation type anti-seismic
aluminum electrolytic capacitor which comprises a cover plate, a shell, an element and a lead. The cover plate is characterized in that protrusions are symmetrically arranged on the upper end face of the cover plate with respect to the center of the cover plate, and a wall part is arranged on the lower end face of the cover plate in the circumferential direction; the
diameter of the inner circumference of the wall part is matched with the
diameter of the outer circumference of the element; the outer
peripheral surface of the wall part is propped against the inner
peripheral surface of the shell; the joint of the wall part and the cover plate is positioned below the
girdling groove; one end, connected with the lead, of the element is sleeved and fixed in the wall part to form a whole; the end, away from the cover plate, of the element is sleeved with an annular piece. The height of the protrusion is larger than that of the plain
waist part, and when the protrusion is installed on the circuit board, a gap is formed between the plain
waist part and the circuit board. Through the arrangement of the cover plate structure, the
capacitor is firmly installed and rapidly dissipates heat, the heat dissipation performance and the
shock resistance of the
aluminum electrolytic capacitor are improved, and the purposes of high
temperature resistance and stability are achieved.