A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

The magnetic poser unit (100) comprises a magnetic core (10) including a first, a second and a third winding channels (2a, 2b, 2c) respectively arranged around a first, a second and a third crossing axis (A-A, B-B, C-C) orthogonal to each other, each of said winding channels (2a, 2b, 2c) being intended for receiving one coil wound around the magnetic core (10), each coil having at least one turn. The crossing axis (A-A, B-B, C-C) define orthogonal planes providing eight octants, each including a protrusion defining a protruding spacer (20), being spaced to each other by said winding channels (2a, 2b, 2c). The magnetic core (10) is a composed core formed by several different partial magnetic cores assembled together including two side partial magnetic cores (12), each including four protruding spacers (20). The magnetic core (10) further includes a through hole (30) housing a device for heat dissipation (50).

Provided is a magnetic field generating apparatus including a compressor (21), a condenser (22), an expansion valve (23), and an evaporator, which are connected in such a manner as to circulate a cooling fluid therethrough. The evaporator includes a coil (16) formed by being wound into a solenoid, the coil (16) having a plurality of microholes (32) where the cooling fluid flows, the coil (16) is connected to a resonant circuit (15) having a capacitor (33) that causes the coil (16) to resonate, and the coil (16) and the capacitor (33) are cooled with the cooling fluid. Consequently, in the magnetic field generating apparatus, excellent cooling that maintains the capacitor (33) at a constant temperature allows obtaining the stable behavior of a switching element (30) and stably generating a strong magnetic field over a long period of time.

Provided is a magnetic field generating apparatus including a compressor (21), a condenser (22), an expansion valve (23), and an evaporator, which are connected in such a manner as to circulate a cooling fluid therethrough. The evaporator includes a coil (16) formed by being wound into a solenoid, the coil (16) having a plurality of microholes (32) where the cooling fluid flows, the coil (16) is connected to a resonant circuit (15) having a capacitor (33) that causes the coil (16) to resonate, and the coil (16) and the capacitor (33) are cooled with the cooling fluid. Consequently, in the magnetic field generating apparatus, excellent cooling that maintains the capacitor (33) at a constant temperature allows obtaining the stable behavior of a switching element (30) and stably generating a strong magnetic field over a long period of time.

Methods and apparatuses for cooling an electronic device assembly having a heat producing are described. An electronic device assembly includes a heat dissipation member and a dielectric two-phase heat transfer device. The dielectric heat transfer device has an evaporator region thermally attached to a hot region of the heat producing component and a condenser region thermally attached to the heat dissipation member. The dielectric two-phase heat transfer device is fabricated from a dielectric material.

Methods and apparatuses for cooling an electronic device assembly having a heat producing are described. An electronic device assembly includes a heat dissipation member and a dielectric two-phase heat transfer device. The dielectric heat transfer device has an evaporator region thermally attached to a hot region of the heat producing component and a condenser region thermally attached to the heat dissipation member. The dielectric two-phase heat transfer device is fabricated from a dielectric material.

A wireless charging coil structure with a function of heat dissipation comprises a first connecting terminal, a second connecting terminal and a coil. The coil is disposed between the first connecting terminal and the second connecting terminal, and configured to transmit a signal between the first connecting terminal and the second connecting terminal. The coil comprises a heat-pipe segment and a transmission segment electrically and heat-conductively connected with each other. The transmission segment has a predetermined thickness, the heat-pipe segment encircles an accommodating space, and a heat-dissipating medium is disposed in the accommodating space.

A wireless charging coil structure with a function of heat dissipation comprises a first connecting terminal, a second connecting terminal and a coil. The coil is disposed between the first connecting terminal and the second connecting terminal, and configured to transmit a signal between the first connecting terminal and the second connecting terminal. The coil comprises a heat-pipe segment and a transmission segment electrically and heat-conductively connected with each other. The transmission segment has a predetermined thickness, the heat-pipe segment encircles an accommodating space, and a heat-dissipating medium is disposed in the accommodating space.

A coil device includes a coil part having a coil, a case accommodating the coil part, a coolant accommodated in the case, and a fluid volume adjusting part for supplying the coolant to the case or discharging the coolant from the case. The coil part floats on the coolant.