LOS ANGELES — Slava Voynov broke his stick in two with a vicious swing at the puck during the second period. The Los Angeles Kings defenseman’s slower shot stayed on course anyway, sliding past Corey Crawford into Chicago’s net.

The defending Stanley Cup champions have been getting all kinds of breaks during an unbeaten home run through the postseason. They’ll need a few more like that to even up the Western Conference finals.

Voynov had a goal and an assist, Jonathan Quick made 19 saves and Los Angeles beat the Blackhawks 3-1 in Game 3 Tuesday night, trimming Chicago’s series lead to 2-1.

Justin Williams also scored and Dwight King added an empty-net goal in the defending champions’ 15th consecutive home victory since March. Although they can’t explain it, the Kings have won all eight of their home playoff games — nine straight dating to last season’s title clincher.

“Honestly, we don’t talk about it in here at all,” Kings defenseman Robyn Regehr said. “We have a certain way we need to play. For whatever reason, we do a heck of a good job of it at home, and not as good on the road.”

Game 4 is Thursday night in Los Angeles.

The Kings never trailed while ending the top-seeded Blackhawks’ five-game postseason winning streak, but they had to survive a tense third period with Quick’s brilliance and a strong defensive effort.

“It’s not something we wanted to try and test out, so it was certainly a must-win in our situation,” Kings defenseman Rob Scuderi said. “We were just able to be aggressive.”