JPS61186257U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 shows an embodiment of this invention, and is a longitudinal sectional view of the normal temperature terminal part, Fig. 2 is a perspective view showing the connection point between the cylindrical part of the inner bus bar and the conductor in Fig. 1, and Fig. 3 is a longitudinal sectional view of the normal temperature terminal part. 4 is a longitudinal sectional view of a cryogenic cooling device using a current lead, and FIG. 5 is a longitudinal sectional view of the lead body in FIG. FIG. 6 is a vertical cross-sectional view of a conventional normal temperature terminal section, and FIG. 7 is a plan view taken along arrow P in FIG. 6. 4a: Lead body, 4a ₁ : Hollow tube, 4a ₂ :
Conductor, 4b, 14b, 24b: normal temperature terminal part, 14
b ₁ : Inner bus bar, 14 b ₂ : Slit, 14
_b3 : Outside bus bar, 14c: Low temperature terminal.

Claims (1)

[Scope of utility model registration request] A cryogenic cooling device that has room-temperature terminals and low-temperature terminals at both ends of the lead body, in which multiple conductors are inserted into a hollow tube to supply current from the outside of the cryogenic container housing the superconducting coil to the internal superconducting coil. In the current lead for equipment; the structure of the normal temperature terminal is as follows:
The plurality of conductive wires protruding from the tip of the hollow tube are spread radially and inserted into a plurality of slits provided on the periphery of a cylindrical inner bus bar arranged on the outer periphery of the conductor. A low-temperature cooling device characterized in that an inner busbar is electrically and airtightly connected to an outer busbar having a conductor connected to the inner busbar and a cooling gas outlet pipe disposed on the outer periphery or end face of the inner busbar. current lead.