Improved installation structure of automobile seat backrest fan

The utility model discloses an automobile seat backrest fan installation improvement structure, a backrest fan comprises a front cover, a rear cover and a fan main body, the front cover and the rear cover are mutually buckled to form a shell structure, the fan main body is installed inside the shell structure, the fan main body is connected with a fan wire harness, the rear cover is provided with a notch channel for the fan wire harness to pass through, and the notch channel is communicated with the fan wire harness. A backrest ventilation support is welded to the backrest framework, the rear cover is fixed to the backrest ventilation support, a heightening protruding part is arranged on the rear cover, a wiring harness groove which is communicated with the notch channel and extends up and down is formed in the heightening protruding part, and a fan wiring harness penetrates through the notch channel from the interior of the shell structure, penetrates through the wiring harness groove and then is wired right