Abstract:
An unmanned aerial vehicle (UAV) includes a central body, a plurality of arms extending out from the central body, and a plurality of propulsion units. Each of the plurality of arms includes a stem portion, one or more branch portions, and a joint connecting the stem portion with the one or more branch portions. The joint includes a sleeve configured to lock a position of one of the one or more branch portions relative to the stem portion. Each of the propulsion units is attached to one of the one or more branch portions of one of the plurality of arms.
Abstract:
A system and kit for dissipating heat generated by a motor assembly and methods for manufacturing and using same. The motor assembly includes a housing that defines an internal chamber. The internal chamber communicates with an air inlet and an air outlet each being formed in the housing, and can at least partially receive motor inner workings. A pump assembly can be included in the internal chamber for generating an air flow during operation of the motor assembly. The pump assembly can draw air into the internal chamber via the air inlet, generating an air flow within the internal chamber. The air drawn into the internal chamber is applied to the motor inner workings, and the air heated by the motor inner workings is expelled from the internal chamber via the air outlet. Thereby, the air flow advantageously can cool the motor assembly as the air traverses the internal chamber.
Abstract:
An unmanned aerial vehicle (UAV) includes a central body, a plurality of arms extending out from the central body, and a plurality of propulsion units. Each arm of the plurality of arms includes a stem portion including a stem interior space, one or more branch portions each including a branch interior space, and a joint connecting the stem portion and the one or more branch portions. The joint includes a joint interior space and is configured to move the one or more branch portions relative to the stem portion. Each propulsion unit is attached to a corresponding arm of the plurality of arms. The stem interior space, the branch interior space, and the joint interior space are configured to provide an internal passageway to permit electrical routing between the central body and the plurality of propulsion units.
Abstract:
Unmanned aerial vehicles and frames thereof are disclosed. The unmanned aerial vehicle includes a frame and a control module. The frame includes a central frame, a first arm set, and a second arm set. Each of the first arm set and the second arm set includes a second arm assembly, a third arm assembly, and a first arm assembly. The first arm assembly is located between the second arm assembly and the third arm assembly. The first arm assembly includes a first rotor assembly. The second arm assembly includes a second rotor assembly. The third arm assembly includes a third rotor assembly. In an output direction of downward-propelling wind fields, one of a rotation plane of the first rotor assembly, a rotation plane of the second rotor assembly, and a rotation plane of the third rotor assembly is located at a different position from the other two.
Abstract:
A spray assembly includes a spray bar, a spray head assembly, and a connection base. The spray head assembly is connected to an end of the spray bar. The connection base is connected to another end of the spray bar and configured to fix the spray bar at a frame of an agricultural plant protection machine. The connection base includes a flexible connection base. The connection base is configured to cause the spray bar to swing relative to the frame in response to the spray bar being subjected to an external force.
Abstract:
A spraying apparatus includes a driving mechanism having a driving shaft rotatable around its own axis and a spin plate disposed at a bottom of the driving shaft. The spin plate is configured to rotate with the driving shaft to spray chemical solution. The driving mechanism includes a stator assembly, a rotor assembly and a housing assembly. The housing assembly includes a first housing member and a second housing member. The first housing member and the stator assembly are connected; the rotor assembly is connected to the second housing member; the first housing member is connected to the second housing member by snap-fit; and a bottom side of the second housing member is provided with a water inlet pipe that is connected to an internal of the spin plate.
Abstract:
A method, an apparatus, and a kit for assembling a mobile platform are provided. A flowable substance is carried on the mobile platform. A module is enabled to contain the flowable substance and to couple with the mobile platform, with a power device of the mobile platform being installed in a recess having a depth extending from a surface toward an interior of the module. The module is configured to include an anti-drift structure.
Abstract:
An apparatus and kit for assembling a mobile platform and methods for making and using the same. When associated with a mobile platform, a power device can be installed outside a control device coupled with the mobile platform. The power device can be located outside a housing enclosing the mobile platform and exposed to an external operating environment of the mobile platform. Heat generated by the power device can be dissipated without installation of additional cooling equipment. The power device and the control device can thus have lower operating temperatures and longer lifetimes. The power device can be installed on a module associated with the mobile platform for further improving heat dissipation of the power device. The module optionally can function as a shock absorber for preventing damage to the power device in case the mobile platform is involved in a crash.