Installing bracket and electronic device assembly

An installing bracket, configured to be assembled to a plurality of head support rods of a vehicle seat to mount an electronic device, the installing bracket comprising:

• a first locking plate, comprising a first locking portion and a first joint portion, the first joint portion comprising a plurality of first concaves disposed on a first side of the first joint portions;
• and
• a second locking plate, comprising a second locking portion and a second joint portion, the second joint portion comprising a plurality of second concaves disposed on a second side of the second joint portion, and positions of the second concaves corresponding to the first concaves, the first locking portion stacked on the second locking portion, and the first locking portion and the second locking portion locked to each other, wherein when the electronic device is mounted on the installing bracket, the electronic device is configured to be locked to the first locking portion and the second locking portion, and the first concaves joint with the respective second concaves to define a plurality of assembly holes together for the head support rods to penetrate through.