Direct liquid cooling temperature control device of giant magnetostrictive actuator

Abstract

The invention discloses a direct liquid cooling temperature control device of a giant magnetostrictive actuator, which comprises a phase change heat-absorbing layer, a loop frame, inner-layer and outer-layer coils, an outer-layer sleeve, distribution type heat exchange flow channels, a heat insulating material, a claw and an end cover, wherein insulating coolant enters a cavity from an inlet at one side of the end cover, and is in direct contact with the coils infiltrated in multiple layers of distribution type heat exchange flow channels through the distribution type heat exchange flow channels and then flows out from an outlet at the other side of the end cover and carries away the heat after being subjected to heat exchange. Because the coolant directly contacts the coils for cooling and the multiple layers of heat exchange flow channels are designed, compared with the traditional cooling temperature control mode, the direct liquid cooling temperature control device has the advantage of greatly increasing the heat efficiency; and by virtue of the claw type coil frame fixing mode, the conduction of the heat from the coils to a knife bar and the giant magnetostrictive material is basically isolated, and the temperature control precision of the giant magnetostrictive actuator is significantly improved.

Description

technical field [0001] The invention relates to a temperature control device for a giant magnetostrictive drive, in particular to a direct liquid cooling temperature control device for a giant magnetostrictive drive. Background technique [0002] Giant Magnetostrictive Actuator (GMA) is a new type of driver with giant magnetostrictive material (GMM) as the core driving element. Its superiority has been widely recognized. The application field has gradually expanded from the initial underwater acoustic transducer to precision Ultra-precise positioning control systems, robots, sensors, micro-electro-mechanical systems and fluid components and many other fields have broad prospects for development. [0003] A piston with a special-shaped hole is an extremely important industrial component, and the intelligent component driven by GMA can be used for boring the special-shaped hole of the piston. In engineering applications, due to the heating of the driving coil, the thermal exp...

AI Technical Summary

Problems solved by technology

The thermal expansion compensation structure is simple and has a certain effect, but the selection of the inner sleeve material is more complicated in the design process, and the temperature rise of the outer shell is greatly affected by the external environment

In actual application, GMA temperature control usually adopts the temperature control method of liquid indirect cooling, the coil does not contact the cooling liquid, the total thermal resistance of the heat transfer path is large, and the total heat transfer area is small, which cannot meet the increasing demand GMA temperature control performance requirements

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