Pressing mechanism with variable distance position and equal dividing for charging and discharging of the square battery

A pressing mechanism with variable distance position and equal dividing for charging and discharging of a square battery, comprises:

• a frame comprises a top frame and a bottom frame, both the top frame and the bottom frame being horizontally arranged, the bottom frame is located below the top frame, the top frame and the bottom frame are arranged at intervals and fixedly connected through a plurality of guide rods;
• a pressing unit arranged between the top frame and the bottom frame comprises a lifting saddle, a lifting driving cylinder and a plurality of restraining trays, and the lifting saddle horizontally arranged between the top frame and the bottom frame is slidably connected with the plurality of guide rods;
• a rectangular restraining tray placing frame is arranged at the lifting saddle, while a extending direction of a long edge of the rectangular restraining tray placing frame being defined as a left-right direction, a extending direction of a short edge of the rectangular restraining tray placing frame being defined as a front-rear direction, and a plurality of restraining tray holders are abreast arranged at the rectangular restraining tray placing frame in the left-right direction;
• a lifting terminal of the lifting driving cylinder arranged on the top frame is jointed with the rectangular restraining tray placing frame;
• a queue composed of a plurality of vertical clapboards which are perpendicular to a horizontal plane and parallel to each other is arranged in each of the plurality of restraining trays;
• each of the plurality of the restraining trays is detachably mounted at each of the plurality of restraining tray holders;
• a longitudinal axis of the queue of the plurality of vertical clapboards is along the front-rear direction wherein between each two adjacent vertical clapboards of the plurality of vertical clapboards an accommodating space for a lithium-ion battery is reserved, and the plurality of vertical clapboards are flexibly linked;
• wherein:
• a cam is arranged at a rear part of each restraining tray holder of the plurality of restraining tray holders;
• a rotation shaft is arranged along the left-right direction of the cam;
• a variable distance position and equal dividing probe assembly arranged at a bottom of the top frame comprises:
• a plurality of probe modules which are in one-to-one correspondence with the plurality of restraining tray holders, wherein, each of the plurality of probe modules comprises a probe module frame, a linear sliding rail holder, a linear sliding rail, a reset unit, a wire connector and a plurality of probe units;
• the probe module frame is mounted right above the plurality of restraining tray holders, and the wire connector is arranged at a rear terminal of the probe module frame;
• the linear sliding rail is arranged along the front-rear direction on a lower surface of the linear sliding rail holder coupled with a bottom of the probe module frame, and a plurality of probe units are slidably arranged on the linear sliding rail and aligned along the front-rear direction, and each of the plurality of probe units is coupled with the linear sliding rail holder through a reset tension spring;
• a positioning stick used for inserting into the accommodating space and a plurality of probes used for contacting a tab of the lithium-ion battery are arranged at a bottom of each of the plurality of probe units, and the plurality of probes is electrically connected with the wire connector through a wire;
• the reset unit comprises a cam contact block and a horizontal driving unit coupled with a front terminal of the cam contact block and arranged at a rear terminal of the linear sliding rail holder;
• a wedge-shaped driving surface and a vertical surface matching with the cam are arranged on the cam contact block from bottom to top wherein the vertical surface is jointed with a top of the wedge-shaped driving surface, and the cam is arranged in front of the wedge-shaped driving surface which is gradually inclined towards the cam from bottom to top, wherein the cam contact block is pushed backwards from a first position to a second position when the cam is upward rolling on the wedge-shaped driving surface;
• the horizontal driving unit is arranged between the cam contact block and a rearmost vertical clipboard of the plurality of vertical clapboard to drive the queue of vertical clapboards to move backwards;
• in the first position, the cam contacts with a bottom of the wedge-shaped driving surface while the positioning stick is separated from the plurality of vertical clapboard;
• in the second position, the vertical surface is pressed by the cam while a rear adjacent vertical clapboard of the plurality of vertical clapboards is tightly pressed by the positioning stick which provides a position reference along the front-back direction for the plurality of probes on the plurality of probe units.