Power converter
An LLC resonant converter in which a capacitor (Cr), an inductance (Lr), and a power line between the capacitor (Cr) and the inductance (Lr), which constitute a series resonance unit, are resin-encapsulated by a resin. Because the series resonance unit that is a high voltage portion is resin-encapsulated collectively, it is possible to shorten an insulation distance even in the case of higher voltages and frequencies, and to prevent an increase in size.
1. An LLC resonant converter comprising at least a series resonator having a capacitor and an inductance; and
a power transmission coil electrically connected between a first node and a second node of an inverter that outputs a transmission power having a predetermined driving frequency between the first node and the second node,
wherein the capacitor, the inductance, and a power line between the capacitor and the inductance are resin-sealed,
wherein the capacitor and the inductance constituting the series resonator are connected in series between the first node and the power transmission coil,
wherein the power transmission coil and the inductance are integrally formed, and the power transmission coil and the inductance that are integrally formed are resin-sealed, and
wherein the power transmission coil and the inductance that are integrally formed are accommodated in a case having an opening on an upper side, and the case is filled with a resin with the capacitor being stacked on the power transmission coil and the inductance that are integrally formed, to integrally resin-seal the series resonator and the power transmission coil.
2. The LLC resonant converter according to claim 1 , comprising a case accommodating the series resonator and the power transmission coil, wherein the case is filled with a resin to integrally resin-seal the series resonator and the power transmission coil.
3. The LLC resonant converter according to claim 1 , wherein the case is made of a metal.
4. The LLC resonant converter according to claim 1 , wherein the case is made of a resin.
5. The LLC resonant converter according to claim 1 , wherein the capacitor is a ceramic capacitor.
6. The LLC resonant converter according to claim 1 , wherein the resin that seals the capacitor, the inductance and the power line is made of silicone.
7. The LLC resonant converter according to claim 1 , wherein the resin that seals the capacitor, the inductance and the power line is made of epoxy.
8. The LLC resonant converter according to claim 1 , wherein the resin that seals the capacitor, the inductance and the power line is made of urethane.