Current collecting board assembly and power battery pack using same

A power battery pack (100), comprising:

• a first housing (10) comprising a first main portion (11) having a first fixing surface (111) and a first connection surface (112);
• a number of first receiving portions (1110) extending upwardly from the first fixing surface (111);
• the first main portion (11) defining a number of first through holes (1111), each first receiving portion (1110) surrounding a respective first through hole (1111);
• a number of first limiting portions (1120) extending upwardly from the first connection surface (112) and each first limiting portion (1120) surrounding a part of first through holes (1111);
• a second housing (20) comprising a second main portion (21) having a second fixing surface (211) and a second connection surface (212);
• a number of second receiving portions (2110) extending upwardly from the second fixing surface (211);
• the second main portion (21) defining a number of second through holes (2111), each second receiving portion (2110) surrounding a respective second through hole (2111);
• a number of second limiting portions (2120) extending upwardly from the second connection surface (212) and each second limiting portion (2120) surrounding a part of second through holes (2111);
• a number of single batteries (30), each single battery (30) comprising an anode (31) and a cathode (32) at two ends;
• two ends of each single battery (30) being received in a first receiving portion (1110) and a respective second receiving portion (2110);
• and
• a current collecting board assembly (40) comprising two electrode board assemblies (41) respectively received in a first limiting portion (1120) and a number of intermediate board assemblies (42), each intermediate board assemblies (42) being received in a first limiting portion (1120) or a second limiting portion (2120);
• wherein the electrode board assembly (41) comprises a first mounting plate (411), a first current collecting board (412) mounted on the first mounting plate (411), and a number of first conductive components (413);
• the first conductive component (413) comprises a first elastic member (4131) electrically connected to the first current collecting board (412);
• the first elastic member (4131) comprises a number of first elastic arms (4135) extending into the first though hole (1111) and abut against one end of the single battery (30);
• wherein the intermediate board assembly (42) comprises a second mounting plate (421), a second current collecting board (422) mounted on the second mounting plate (421), and a number of second conductive components (423);
• the second conductive component (423) comprises a second elastic member (4231) electrically connected to the second current collecting board (422);
• the second elastic member (4231) comprises a number of second elastic arms (4235) extending into the first through hole (1111) or the second though hole (2111) and abut against one end of the single battery (30).