Abstract: Embodiments of the present disclosure relate to an arm assembly and an unmanned aerial vehicle thereof. The arm assembly includes: an arm support; an arm, where the arm is movably connected to the arm support, and is rotatable in a first direction and an opposite second direction; a locking member, where the locking member is disposed in the arm support, and is capable of abutting against or separating from the arm; and a connecting rod, where the connecting rod is connected between the locking member and the arm support, to associate rotation of the connecting rod with reciprocation of the locking member, when the locking member abuts against the arm, rotation of the arm in the first direction is capable of being restricted; and the locking member is separable from the arm driven by the rotation of the connecting rod, to release the restriction on the rotation of the arm.

Abstract: The embodiments of the present disclosure disclose an aircraft, including a housing, a first drive module, a first antenna module, a second drive module, a third drive module and a fourth drive module. The first drive module includes a first arm and a first drive assembly, one end of the first arm is arranged on the housing, and the first drive assembly is arranged at the other end of the first arm; the first antenna module is arranged at the other end of the first arm, and the first antenna module is located above the first drive assembly; and the second drive module includes a second arm and a second drive assembly, one end of the second arm is arranged on the housing, and the second drive assembly is arranged at the other end of the second arm.

Abstract: Embodiments of the present disclosure relate to an arm assembly and an unmanned aerial vehicle thereof. The arm assembly includes: an arm support; an arm, where the arm is movably connected to the arm support, and is rotatable in a first direction and an opposite second direction; a locking member, where the locking member is disposed in the arm support, and is capable of abutting against or separating from the arm; and a connecting rod, where the connecting rod is connected between the locking member and the arm support, to associate rotation of the connecting rod with reciprocation of the locking member, when the locking member abuts against the arm, rotation of the arm in the first direction is capable of being restricted; and the locking member is separable from the arm driven by the rotation of the connecting rod, to release the restriction on the rotation of the arm.

Abstract: Embodiments of the present disclosure relate to the field of unmanned aerial vehicle technologies, and disclose a heat dissipation structure and an unmanned aerial vehicle including same. The heat dissipation structure includes: a first structure body, where a heat dissipation channel is provided in the first structure body for a cooling medium to flow through; and a second structure body, where the second structure body is arranged in the heat dissipation channel, and configured to divide the heat dissipation channel to form at least two channel branches, where a sealed cavity configured to accommodate a heating device is provided in the second structure body. Through a design of heat dissipation channel branches arranged in a cascading manner, a required sealed space can be formed conveniently between channel branches, providing sufficient sealing to satisfy requirements of components for waterproofing/dustproofing.

Abstract: The embodiments of the present disclosure disclose an aircraft, including a housing, a first drive module, a first antenna module, a second drive module, a third drive module and a fourth drive module. The first drive module includes a first arm and a first drive assembly, one end of the first arm is arranged on the housing, and the first drive assembly is arranged at the other end of the first arm; the first antenna module is arranged at the other end of the first arm, and the first antenna module is located above the first drive assembly; and the second drive module includes a second arm and a second drive assembly, one end of the second arm is arranged on the housing, and the second drive assembly is arranged at the other end of the second arm.