Composite power cable with built-in thermal induction wire and its overheat protection device

Abstract

The invention relates to a composite power cable with a built-in thermal induction line and an overheat protection device equipped with it. It has a simple structure, so that it can be installed conveniently and economically, and can sense the heat generated inside and outside the power cable. Heat, according to the present invention, the composite power cable with built-in heat induction line includes: a dummy part (100), which is extended along one side; more than one power supply line (200), which is wound in a helical shape along the direction in which the dummy part (100) extends On the outer peripheral surface of the dummy part (100), a power supply is applied by an inverter to make a high-frequency current flow; more than one thermal induction line (300), which, together with the power supply line (200), extends along the direction of extension of the dummy part (100) Helically wound on the outer peripheral surface of the dummy part (100) to sense the heat generated in the power supply line (200); and the cable sheath (400), which wraps the power supply line (200) and the heat induction line (300) on the outside.

Description

technical field [0001] The invention relates to a composite power cable with a built-in thermal induction line and an overheat protection device equipped with it. Background technique [0002] As a device that wirelessly transmits power through magnetic induction, the wireless power transmission device can wirelessly transmit power to a trolley running along the track or wirelessly charge a fixed object (for example, a parked electric car) without electrical or mechanical contact. [0003] figure 1 is a diagram schematically illustrating a conventional wireless power transmission device. [0004] like figure 1 As shown, the existing wireless power transmission device includes: a power supply line 10; an AC power supply device 20, which supplies a high-frequency current to the power supply line; a collector core 30, which is wound as a collector coil of a secondary winding, and, The magnetic core 30 may include a transport trolley connection part 31 for connecting with the...

AI Technical Summary

Problems solved by technology

However, in this case, since the thermal induction line 300 is additionally provided outside the high-frequency power cable 50, there are problems of poor economy and cumbersome installation, and with figure 2 The conventional method shown is the same, but there is a problem that it takes a long time to detect the heat generated at the position a outside the high-frequency power cable 50

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