Scroll compressor with spring to assist in holding scroll wraps in contact

A scroll compressor comprising:

• a first scroll member having a base and a generally spiral wrap extending from said base;
• a second scroll member having a base and a generally spiral wrap extending from its base, said wraps of said first and second scroll members interfitting to define compression chambers;
• an electric motor driving a shaft to cause said second scroll member to orbit relative to said first scroll member, and said shaft having an eccentric pin extending upwardly into a slider block, said slider block being provided with a bore with a generally flat drive surface, and a curved surface at locations removed from said generally flat drive surface, said eccentric pin further being provided with a generally flat drive surface, with clearance provided between said bore of said slider block and an outer periphery of said eccentric pin such that said slider block can move relative to said eccentric pin;
• said slider block extending upwardly into a boss extending away from said base of said second scroll member, with movement of said slider block relative to said eccentric pin causing movement of said second scroll member relative to said first scroll member;
• and
• a spring biasing said second scroll member wrap toward said first scroll member wrap, said spring being positioned between said eccentric pin and said bore of said slider block.