Abstract: A mover of a linear motor with an outer heat radiating housing comprises a body and an outer heat radiating housing. The body includes an iron core and coils. The outer heat radiating housing covers the body and is integrally jointed to the body. The outer heat radiating housing is defined with a plurality of passages. When the current is supplied to the coils of the body, the body will be driven, the heat energy produced by the body can be conducted to the outer heat radiating housing sufficiently. In addition, after the cooling liquid is conducted to the passages, the heat radiating effect of the mover can be improved.

Abstract: A heat sink for a shaft-type linear motor is detachably positioned on a mover and is interiorly defined with a space. A plurality of coolant-receiving channels is formed in a wall between the space and an outer surface of the heat sink, and each of the coolant-receiving channels includes at least one inlet and one outlet. A plurality of concave and convex radiation fins is formed on an outer surface of the mover. Such an arrangement is suitable for modular production, so as to facilitate replacement and design of the product. Further, the radiation fins cooperate with the liquid cooling effect to enable the motor to produce the maximum pushing force.

Abstract: A coil arrangement for a shaft-type linear motor is disposed in a mover and comprises a plurality of insulating members and a plurality of coils. Each of the insulating members is at least defined in the center thereof with a stator passage. The stator passage is surrounded by an insulating ring with a receiving surface. An insulating flange protrudes from a side edge of the receiving surface, and a positioning notch is defined in the insulating flange. By such arrangements simplify the coil winding operation, and solve the problem of the conduction of the stator, and the dust accumulation in the coil.

Abstract: A display with a rotary driving device comprises a base, a driving device, and a display. In assembly, the driving device is mounted on the base, and then the display is fixed on a rotor of the direct drive motor of the driving device. The user can use remote control or manual touch control to set a predetermined angle that he wants the display to rotate, once the display receives signal, it will instantly instruct the direct drive motor of the driving device to rotate the rotor, so that the display will be rotated to a predetermined angle.

Abstract: A position feedback device for a linear motor utilizes Hall sensors which are properly positioned to induct the magnetic field variation of a linear motor and processing the inducted information with the OP amplifiers and signal level regulators to output Sine and Cosine differential signals.