Abstract: An electric pump includes an impeller, a rotor connected to the impeller, a housing housing the rotor, a plurality of divided iron cores surrounding an outer surface of the housing, a plurality of divided coil bobbins respectively attached to the plurality of the divided iron cores, a plurality of divided coils respectively wound around the plurality of the divided coil bobbins, and a bus bar unit including a plurality of bus bars.

Abstract: A waterproof mechanism, for a robot hand, includes a cover covering at least a part of a main body portion of the robot hand, covering a driving portion, and including an opening; and an extension member protruding from the opening, wherein the driving portion is held so as to be driven with respect to the main body portion, a proximal end portion of the extension member is fixed to the driving portion, a distal end portion of the extension member is fixed to a claw member of the robot hand, a first fixing member that fixes the extension member and the driving portion to each other is covered by the cover, and a second fixing member that fixes the extension member and the claw member to each other is detachably exposed from the cover.

Abstract: A motor device includes a motor body, a case that houses the motor body, a printed circuit board that controls the drive of the motor body and is supported by the case, and a ground bus bar that is arranged between the motor body and the printed circuit board and connects the motor body and ground of the printed circuit board.

Abstract: A drive unit includes a motor device including a motor main body, a case portion accommodating the motor main body, a pump driven by the motor main body being attachable to the case portion, and a cap portion provided on the case portion, and an operation jig attachable to and detachable from the cap portion.

Abstract: A robot hand includes a motor with a rotary shaft, an accommodating member accommodating a distal end of the rotary shaft, a plurality of swing members swinging with respect to the accommodating member due to rotation of the rotary shaft, and a plurality of claw members swinging with the plurality of swing members.

Abstract: A robot hand includes a motor, claws configured to grip a workpiece in accordance with rotation of the motor, an encoder configured to detect a rotational position of the motor, and a control device configured to control a torque of the motor such that the claws grip the workpiece in accordance with the rotational position.

Abstract: A lead screw device includes: a lead screw; and a motor that rotates the lead screw, wherein the motor includes: a hollow shaft fitted onto a part of an outer circumference of the lead screw; and a rotor core fitted onto a part of the outer circumference of the hollow shaft.

Abstract: A manufacturing method of an electric pump includes engaging and welding first and second extended portions with first and second hooks, respectively, and cutting a plurality of connecting portions after the engaging and welding.

Abstract: A robot hand includes a motor with a rotary shaft, an accommodating member accommodating a distal end of the rotary shaft, a plurality of swing members swinging with respect to the accommodating member due to rotation of the rotary shaft, and a plurality of claw members swinging with the plurality of swing members.

Abstract: A robot hand includes a motor with a rotary shaft, an accommodating member accommodating a distal end of the rotary shaft, a plurality of swing members swinging with respect to the accommodating member due to rotation of the rotary shaft, and a plurality of claw members swinging with the plurality of swing members.

Abstract: An electric pump includes: a motor; an impeller rotated by the motor; a motor housing portion that houses the motor; an impeller housing portion that houses the impeller and is positioned at one side with respect to the motor housing portion in a rotation axis of the motor; an introduction pipe portion that introduces a fluid into the impeller housing portion and is positioned at the one side with respect to the motor housing portion; a discharge pipe portion that discharges the fluid from the impeller housing portion; and a printed circuit board electrically connected to a coil of the motor and positioned at the one side with respect to the motor housing portion.

Abstract: A motor device includes a motor body, a case that houses the motor body, a printed circuit board that controls the drive of the motor body and is supported by the case, and a ground bus bar that is arranged between the motor body and the printed circuit board and connects the motor body and ground of the printed circuit board.

Abstract: An electric pump includes: an impeller; a rotor connected to the impeller; a housing accommodating the rotor; divided iron cores surrounding the housing from an outside of the housing; divided coil bobbins respectively attached to the divided iron cores; divided coils respectively wound around the divided coil bobbins; and a bus bar unit including bus bars, wherein the housing includes a bottom wall portion directly or indirectly holding a shaft portion in a standing manner, the shaft portion supports the rotor for rotation, the bottom wall portion overlaps at least a part of the divided coils in an orthogonal direction orthogonal to an axial direction of the rotor, and the bus bar unit is conductively connected to the divided coils and is held by the bottom wall portion.

Abstract: An electric pump includes: a motor; an impeller rotated by the motor; a motor housing portion that houses the motor; an impeller housing portion that houses the impeller and is positioned at one side with respect to the motor housing portion in a rotation axis of the motor; an introduction pipe portion that introduces a fluid into the impeller housing portion and is positioned at the one side with respect to the motor housing portion; a discharge pipe portion that discharges the fluid from the impeller housing portion; a printed circuit board electrically connected to a coil of the motor and positioned at the one side with respect to the motor housing portion; and an electronic part mounted on the printed circuit board, wherein the printed circuit board includes a cutout portion and faces the impeller housing portion.

Abstract: A manufacturing method of an electric pump includes engaging and welding first and second extended portions with first and second hooks, respectively, and cutting a plurality of connecting portions after the engaging and welding.

Abstract: An electric pump includes an impeller, a rotor connected to the impeller, a housing housing the rotor, a plurality of divided iron cores surrounding an outer surface of the housing, a plurality of divided coil bobbins respectively attached to the plurality of the divided iron cores, a plurality of divided coils respectively wound around the plurality of the divided coil bobbins, and a bus bar unit including a plurality of bus bars.

Abstract: An electric pump includes: a motor; an impeller; a motor housing portion; an impeller housing portion; an introduction pipe portion; a discharge pipe portion; a printed circuit board; and an electronic part, wherein the electronic part includes first and second electronic parts mounted on a surface of the printed circuit board on a side of the motor housing portion, the second electronic part is taller than the first electronic part, the impeller housing portion includes: an upper wall portion positioned at the one side with respect to the impeller; and a peripheral wall portion positioned radially outward about a rotation axis from the upper wall portion, the first electronic part faces the upper wall portion, and the second electronic part is positioned radially outward about the rotation axis and from the peripheral wall portion.

Abstract: A plunger pump includes: a motor; a bracket attached to the motor; a holding member fixed to the bracket; a plunger extending in a axial direction; a pump head holding the plunger such that the plunger is capable of rotating and reciprocating in the axial direction; and a joint mechanism for converting rotation of the motor into rotation and reciprocation of the plunger, wherein the holding member includes first and second plate members each formed into a flat plate shape, and the first and second plate members are parallel to each other so as to sandwich the pump head.

Abstract: A lead screw device includes: a lead screw; and a motor that rotates the lead screw, wherein the motor includes: a hollow shaft fitted onto a part of an outer circumference of the lead screw; and a rotor core fitted onto a part of the outer circumference of the hollow shaft.

Abstract: An electric pump includes: a motor; an impeller; a motor housing portion; an impeller housing portion; an introduction pipe portion; a discharge pipe portion; a printed circuit board; and an electronic part, wherein the electronic part includes first and second electronic parts mounted on a surface of the printed circuit board on a side of the motor housing portion, the second electronic part is taller than the first electronic part, the impeller housing portion includes: an upper wall portion positioned at the one side with respect to the impeller; and a peripheral wall portion positioned radially outward about a rotation axis from the upper wall portion, the first electronic part faces the upper wall portion, and the second electronic part is positioned radially outward about the rotation axis and from the peripheral wall portion.