Conductive module

Abstract

A conductive module (1) includes: a terminal connection structure that holds a first electrode terminal (510) and a second electrode terminal (610) in an overlapped state;and a conductive element (30) electrically connected to a battery monitoring unit, wherein the first electrode terminal (510) and the second electrode terminal (610) include connecting portions (512, 612) that connect the first electrode terminal (510) and the second electrode terminal (610) to each other by pressing the connecting surfaces against each other, the terminal connecting structure includes a first pressing element (10) that exerts pressure on the connecting portion (512) and a second pressing element (20) that exerts pressure on the connecting portion (612), and the second pressing element (20) is physically and electrically connected to the conductive element (30) to electrically connect the conductive element (30) to the first electrode terminal (510) and the second electrode terminal (610);

Claims

[1] A conductive module (1, 2) comprising: a terminal connection structure that holds a first electrode terminal (510, 520, 530, 540) of one battery cell (501) and a second electrode terminal (610, 620, 630, 640) of the other battery cell (601) in an overlapping state; and a conductive element (30, 130) electrically connected to a battery monitoring unit that monitors the battery states of the battery cells (501, 601), wherein the first electrode terminal (510, 520, 530, 540) and the second electrode terminal (610, 620, 630, 640) contain flat-plate-shaped connecting sections (512, 522, 532, 542, 612, 622, 632, 642) which connect the first electrode terminal (510, 520, 530, 540) and the second electrode terminal (610, 620, 630, 640) to each other by pressing the connecting surfaces on the backs of pressed surfaces against each other, the terminal connection structure includes a first pressure element (10, 110) that exerts pressure on the pressed surface of the connecting portion (512, 522, 532, 542, 612, 622, 632, 642) of the first electrode terminal (510, 520, 530, 540), and a second pressure element (20, 120) that exerts pressure on the pressed surface of the connecting portion (512, 522, 532, 542, 612, 622, 632, 642) of the second electrode terminal (610, 620, 630, 640), and the second pressure element (20, 120) is physically and electrically connected to the conductive element (30, 130) to electrically connect the conductive element (30, 130) to the first electrode terminal (510, 520, 530, 540) and the second electrode terminal (610, 620, 630, 640). [2] The conductive module (1) according to claim 1, wherein the first pressing element (10) is a receiving element including a receiving portion (11) arranged to face the pressed surface of the connecting portion (512) of the first electrode terminal (510), the second pressure element (20) includes an elastically deformable portion (21) which exerts a reaction force accompanying elastic deformation on the pressed surface of the connecting portion (612) of the second electrode terminal (610) to press the connecting surface of the connecting portion (612) of the second electrode terminal (610) against the connecting surface of the connecting portion (512) of the first electrode terminal (510), and when the elastically deformable portion (21) exerts the reaction force accompanying the elastic deformation on the pressed surface of the connecting portion (612) of the second electrode terminal (610), the receiving portion (11) comes into contact with the pressed surface of the connecting portion (512) of the first electrode terminal (510) and receives the reaction force. [3] The conductive module (1) according to claim 2, wherein the first pressure element (10) includes a rectangular first bottom portion (12) and the rectangular receiving portions (11) arranged to face each other at an interval and erected from two side portions of the first bottom portion (12), and has a groove-shaped first groove portion surrounded by the first bottom portion (12) and a pair of the receiving portions (11), and into which the first electrode terminal (510) is inserted, the first electrode terminal (510) includes a rectangular flat-plate-shaped second bottom portion (513) arranged to face the first bottom portion (12) of the first pressure element (10) in the first groove portion, and the rectangular flat-plate-shaped connecting portions (512) arranged to face each other at a distance, erected from two side portions of the second bottom portion (513), and arranged so that the pressed surfaces of the connecting portions face the receiving portions (11) in the first groove portion, and a groove-shaped second groove portion surrounded by the second bottom portion (513) and a pair of the connecting portions of the first electrode terminal (510), and into which the second electrode terminal (610) is inserted, the second electrode terminal (610) includes a rectangular, flat-plate-shaped third bottom portion (613) arranged to face the second bottom portion (513) of the first electrode terminal (510) in the second groove portion, and the rectangular, flat-plate-shaped connecting portions (612) arranged to face each other at an interval erected from two side portions of the third bottom portion (613) and arranged so that the connecting surfaces of the connecting portions (612) face the connecting surfaces of the connecting portions (512) of the first electrode terminal (510) in the second groove portion, and has a groove-shaped third groove portion surrounded by the third bottom portion (613) and a pair of the connecting portions (612) of the second electrode terminal (610) and inserted into the second pressure element (20), the second pressing member (20) includes a rectangular, flat-plate-shaped fourth bottom portion (22) arranged to face the third bottom portion (613) of the second electrode terminal (610) in the third groove portion, and rectangular, flat-plate-shaped side wall portions (23) arranged to face each other at an interval erected from two side portions of the fourth bottom portion (22) and arranged to face the pressed surfaces of the connecting portions (612) of the second electrode terminal (610) in the third groove portion, and the side wall section (23) contains the elastically deformable section (21). [4] The conductive module (2) according to claim 1, wherein the second pressure element (120) is formed in a flat plate shape and includes a male screw portion (121a) or a female screw portion, and the first pressure element (110) is a female screw element to be screwed to the male screw portion (121a) or a male screw element to be screwed to the female screw portion (121a).

Images