Abstract: Backlight modules, display panels and display apparatuses are provided. A backlight module includes: a flexible light board, provided with a plurality of light-emitting elements arranged at intervals, and provided with a first wire at an edge thereof; a back cover including a base plate, the flexible light board being provided on the base plate, and the base plate being provided with a second wire located on a same side as the first wire; and a controller configured to control a direction of an electric current flowing through the first wire and a direction of an electric current flowing through the second wire, to generate an attractive force or a repulsive force between the first wire and the second wire.

Abstract: Disclosed are a motor rotor and a permanent magnet motor. The motor rotor includes: a rotating shaft; a magnetic layer fixedly sleeved on the rotating shaft; a first heat diffusion layer wrapped on an outer surface of the magnetic layer away from the rotating shaft for preventing a shielding layer from overheating locally; and the shielding layer wrapped on a surface of the first heat diffusion layer away from the magnetic layer. The first heat diffusion layer is provided between the shielding layer and the magnetic layer of the motor rotor, so that the first heat diffusion layer can prevent the shielding layer and the magnetic layer from overheating locally, and improve heat dissipation efficiency of the shielding layer.

Abstract: Provided are a rotor shaft assembly, a rotor, and a motor. The rotor shaft assembly includes a magnetic core, a first end shaft, a second end shaft, and a protective sleeve. The protective sleeve is provided, in sequence, with a first through hole, a second through hole, and a third through hole; the first end shaft is disposed through the first through hole, at least part of the magnetic core is arranged inside the second through hole, and the second end shaft is disposed through the third through hole.

Abstract: Backlight modules, display panels and display apparatuses are provided. A backlight module includes: a flexible light board, provided with a plurality of light-emitting elements arranged at intervals, and provided with a first wire at an edge thereof; a back cover including a base plate, the flexible light board being provided on the base plate, and the base plate being provided with a second wire located on a same side as the first wire; and a controller configured to control a direction of an electric current flowing through the first wire and a direction of an electric current flowing through the second wire, to generate an attractive force or a repulsive force between the first wire and the second wire.

Abstract: Disclosed are a motor rotor and a permanent magnet motor. The motor rotor includes: a rotating shaft; a magnetic layer fixedly sleeved on the rotating shaft; a first heat diffusion layer wrapped on an outer surface of the magnetic layer away from the rotating shaft for preventing a shielding layer from overheating locally; and the shielding layer wrapped on a surface of the first heat diffusion layer away from the magnetic layer. The first heat diffusion layer is provided between the shielding layer and the magnetic layer of the motor rotor, so that the first heat diffusion layer can prevent the shielding layer and the magnetic layer from overheating locally, and improve heat dissipation efficiency of the shielding layer.

Abstract: Provided are a rotor shaft assembly, a rotor, and a motor. The rotor shaft assembly includes a magnetic core, a first end shaft, a second end shaft, and a protective sleeve. The protective sleeve is provided, in sequence, with a first through hole, a second through hole, and a third through hole; the first end shaft is disposed through the first through hole, at least part of the magnetic core is arranged inside the second through hole, and the second end shaft is disposed through the third through hole.