Harness isolation plate and battery module

A battery module, comprising:

• a battery cell group comprising a plurality of battery cells arranged in sequence along a same direction, wherein each of the plurality of battery cells is provided with an electrical connection terminal;
• a harness isolation plate located at a side of the battery cell group where the electrical connection terminal is located;
• and
• a plurality of electrical connection members arranged side by side at two ends of the harness isolation plate along a width direction, wherein the plurality of electrical connection members are electrically connected to the plurality of battery cells, and two electrical connection terminals of two adjacent battery cells are electrically connected via the electrical connection member on the harness isolation plate,
• wherein the harness isolation plate has a length direction and a width direction and comprises:
• a plurality of isolation sub-plates arranged in sequence along the length direction, wherein:
• the harness isolation plate comprises a first isolation sub-plate, at least one second isolation sub-plate, and a third isolation sub-plate arranged in sequence along the length direction, wherein along a height direction of the harness isolation plate, a projection of the first isolation sub-plate and a projection of the third isolation sub-plate are both L-shaped, and a projection shape of the second isolation sub-plate is Z-shaped;
• the at least one second isolation sub-plate is provided with a mating assembly at an end along the length direction and a positioning assembly at another end along the length direction;
• the first isolation sub-plate is provided with a positioning assembly corresponding to the mating assembly of the second isolation sub-plate at an end along the length direction;
• and
• the third isolation sub-plate is provided with a mating assembly corresponding to the positioning assembly of the second isolation sub-plate at an end along the length direction;
• the positioning assembly comprises a first guiding portion, a first snap-fit portion, and a second guiding portion arranged in sequence at intervals along the width direction, and the mating assembly comprises a first mating portion, a first engaging portion, and a second mating portion arranged in sequence at intervals along the width direction;
• the first guiding portion is matingly connected to the first mating portion, the first snap-fit portion is matingly connected to the first engaging portion, and the second guiding portion is matingly connected to the second mating portion;
• an extension length of the first guiding portion along the length direction and an extension length of the second guiding portion along the length direction are both greater than an extension length of the first snap-fit portion along the length direction;
• the extension length of the first guiding portion along the length direction is not equal to the extension length of the second guiding portion along the length direction;
• the first snap-fit portion comprises a hook, the first engaging portion comprises a baffle, an accommodating cavity, a first opening, and a second opening, the first opening and the second opening are both in communication with the accommodating cavity, and the hook is movable in the second opening along the length direction.