JP2016167407A - Battery terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery terminal capable of suppressing deformation along the axial direction of a battery post.SOLUTION: A battery terminal 1 includes a post fastening portion 21 to be fastened to a battery post 51, and a connection member holding portion 22 connected to the post fastening portion 21 to hold a connection member 10 which is provided with a base portion 10b at one end of a shaft portion 10a to which a connection mating member 52 is connected. The connection member holding portion 22 includes an upper plate 20c which is clamped together with the connection mating member 52 between a fastening member 54 and the base portion 10b, the fastening member 54 having a through-hole 20j through which the shaft portion 10a penetrates, and being fastened to the shaft portion 10a, and a lower plate 20d which confronts the upper plate 20c, holds the base portion 10b between the lower plate 20d and the upper plate 20c, and is provided with a rotation restriction portion 20s for restricting the rotation of the connection member 10 around the shaft portion 10a by contacting the base portion 10b. The rotation restriction portion 20s is in planar contact with the base portion 10b.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a battery terminal.

  As a conventional battery terminal, for example, in Patent Document 1, a post holding portion that is externally fitted and connected to a battery post erected on a battery body, and a wire that is formed separately from the post holding portion. A battery terminal including a terminal main body configured to include a wire connecting portion to be connected and a rotation connecting portion that rotatably connects the wire connecting portion to a post holding portion is disclosed. This battery terminal is attached to the terminal body so that part of the battery terminal comes into contact with the electric wire connecting part and the other part comes into contact with the battery main body, thereby restricting the rotation of the electric wire connecting part with respect to the post holding part. Is provided.

JP 2011-134519 A

  By the way, the battery terminal described in Patent Document 1 described above is provided in a cantilever shape with the battery post as a fulcrum with respect to the battery post, for example. There is a possibility that bending deformation repeatedly occurs along the axial direction of the post, and there is room for further improvement in this respect.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a battery terminal capable of suppressing deformation along the axial direction of a battery post.

  In order to achieve the above object, a battery terminal according to the present invention has a post fastening portion fastened to a battery post, and a base portion provided at one end of a shaft portion connected to the post fastening portion and connected to a connection partner member. A connecting member holding portion for holding the connecting member, wherein the connecting member holding portion is formed between a base member and a fastening member formed with a through hole through which the shaft portion passes and fastened to the shaft portion. An upper plate sandwiched together with a connection partner member, and a rotation that faces the upper plate and holds the base portion between the upper plate and abuts the base portion to restrict rotation of the connection member around the shaft portion. And a lower plate provided with a restricting portion, wherein the rotation restricting portion is in surface contact with the base portion.

  In the battery terminal, the rotation restricting portion may include a backlash filling portion that closes a gap with the base portion.

  In the battery terminal, the rotation restricting portion may include a deforming contact piece that is pressed and deformed by the base portion.

  In the battery terminal, the rotation restricting portion may include a filling material that is filled between the rotation restricting main body formed integrally with the lower plate and the base. .

  In the battery terminal, the connection member holding portion may include a pressing portion that presses the base portion toward the rotation restricting portion.

  In the battery terminal, the pressing portion may include an elastic portion that biases the base portion toward the rotation restricting portion.

  Further, in the battery terminal, the pressing portion is a portion that holds the base portion in the connection member holding portion and protrudes toward the base portion from a portion facing the rotation restricting portion across the base portion. It can be comprised including.

  In the battery terminal according to the present invention, the post fastening portion is fastened to the battery post, and the connection member holding portion holds the base portion of the connection member between the upper plate and the lower plate. The battery terminal has the upper plate sandwiched between the fastening member fastened to the shaft portion of the connection member and the base, together with the connection partner member, and is provided on the lower plate to contact the base to rotate the connection member. Since the rotation restricting portion to be controlled is in surface contact with the base portion, the upper plate, the lower plate, and the connecting member can be fixed to each other rigidly. As a result, in the battery terminal, the upper plate, the lower plate, and the connection member can be securely fixed and integrated with each other, and the rigidity along the axial direction of the battery post in the connection member holding portion can be improved. Therefore, there is an effect that deformation along the axial direction of the battery post can be suppressed.

FIG. 1 is an exploded perspective view illustrating a schematic configuration of a battery terminal according to the first embodiment. FIG. 2 is a perspective view illustrating a schematic configuration of the battery terminal according to the first embodiment. FIG. 3 is a side view illustrating a schematic configuration of the battery terminal according to the first embodiment. FIG. 4 is a rear view illustrating a schematic configuration of the battery terminal according to the first embodiment. 5 is a partial cross-sectional view taken along line AA shown in FIG. FIG. 6 is a partial cross-sectional view illustrating a schematic configuration of the battery terminal according to the second embodiment. FIG. 7 is a schematic cross-sectional view illustrating a schematic configuration of the battery terminal according to the third embodiment. FIG. 8 is a schematic cross-sectional view illustrating a schematic configuration of a battery terminal according to a modification. FIG. 9 is a rear view illustrating a schematic configuration of the battery terminal according to the fourth embodiment. 10 is a partial cross-sectional view taken along line BB shown in FIG.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

[Embodiment 1]
FIG. 1 is an exploded perspective view illustrating a schematic configuration of a battery terminal according to the first embodiment. FIG. 2 is a perspective view illustrating a schematic configuration of the battery terminal according to the first embodiment. FIG. 3 is a side view illustrating a schematic configuration of the battery terminal according to the first embodiment. FIG. 4 is a rear view illustrating a schematic configuration of the battery terminal according to the first embodiment. 5 is a partial cross-sectional view taken along line AA shown in FIG.

  The battery terminal 1 according to the present embodiment shown in FIGS. 1 to 5 is assembled to the battery post 51 of the battery 50. The battery terminal 1 is attached to the battery post 51 to electrically connect the battery 50 and the connection terminal 52 as a connection partner member provided at the end of the electric wire on the main body side of the vehicle or the like on which the battery 50 is mounted. It is a part for connecting them. The battery 50 is mounted on a vehicle or the like as a power storage device. The battery 50 is formed on one surface of a battery casing 53 that accommodates the battery fluid and various components constituting the battery 50, typically on the surface that is positioned on the upper side in the vertical direction with the battery 50 mounted on the vehicle. A battery post 51 is erected. The battery post 51 protrudes from the upper surface in the vertical direction of the battery housing 53 toward the upper side in the vertical direction. The battery post 51 is formed in a columnar shape, more specifically, a columnar shape (or a cylindrical shape) tapered so as to decrease in diameter as it advances toward the distal end side. That is, the battery post 51 has a tapered shape in which the outer diameter of the tip is smaller than the outer diameter of the base end. The battery post 51 is disposed such that the central axis X is along the vertical direction. The battery terminal 1 is fastened to the battery post 51 configured as described above.

  In the following description, a direction along the central axis X of the battery post 51 is referred to as an axial direction. Also, here, in order to make the following explanation easy to understand, for convenience, one of the two directions orthogonal to the axial direction is set to the long side direction (first width direction), and the other is set to the short side direction (second width). Direction). The axial direction, the long side direction, and the short side direction are orthogonal to each other.

  Specifically, the battery terminal 1 includes a stud bolt 10 as a connecting member, a main body portion 20, and a tightening portion 30.

  The stud bolt 10 includes a shaft portion 10a to which the connection terminal 52 is connected, and a bolt head portion 10b as a base portion provided at one end of the shaft portion 10a (see particularly FIG. 4 and FIG. 5). . The shaft portion 10a is formed in a columnar shape and has a threaded groove formed on the outer peripheral surface. The bolt head portion 10b is a pedestal portion on which the shaft portion 10a is erected. The bolt head portion 10b is formed as a portion having a larger diameter than the shaft portion 10a, and is formed in a substantially hexagonal shape here.

  The main body 20 includes a post fastening part 21 fastened to the battery post 51 and a bolt holding part 22 as a connecting member holding part that is connected to the post fastening part 21 and holds the stud bolt 10. The main body 20 includes, for example, a pair of annular portions 20a and 20b constituting the post fastening portion 21 and a pair of holding plate-like portions 20c constituting the bolt holding portion 22 by press bending of a conductive metal plate. 20d and the bending connection part 20e are integrally formed.

  The pair of annular portions 20a and 20b are formed in a substantially rectangular annular shape, and are substantially circular post insertion holes 20f and 20g into which the battery posts 51 are inserted, respectively, and slits (gap) continuous with the post insertion holes 20f and 20g. 20h and 20i are formed.

  The pair of holding plate-like portions 20c and 20d are formed in a substantially rectangular shape, and a substantially circular bolt insertion hole 20j into which the shaft portion 10a of the stud bolt 10 is inserted is formed on the holding plate-like portion 20c side. The holding plate-like portion 20c is integrally formed so as to be continuous with the annular portion 20a, and the holding plate-like portion 20d is integrally formed so as to be continuous with the annular portion 20b.

  The annular portion 20a and the annular portion 20b are integrally formed so that ends opposite to the ends provided with the holding plate-like portions 20c and 20d are continuous via the bent connecting portion 20e. Is done. As a result, the main body 20 is formed in a U-turned shape with the bending coupling portion 20e interposed therebetween, and the annular portion 20a, the holding plate-like portion 20c, the annular portion 20b, and the holding plate-like portion 20d are pivoted. They are formed so as to face each other and be stacked in a plate shape substantially parallel to each other in the vertical direction.

  Here, the state of being stacked up and down typically corresponds to a state in which the battery terminal 1 is assembled to the battery post 51 and stacked along the axial direction of the battery post 51. To do. The stacking direction is typically a direction along the axial direction in a state where the battery terminal 1 is assembled to the battery post 51, and here, the side from which the shaft portion 10a of the stud bolt 10 protrudes is the stacking direction. The upper side and the opposite side are the lower side in the stacking direction. The upper side in the stacking direction corresponds to the front end side of the battery post 51, and the lower side in the stacking direction corresponds to the base end side of the battery post 51. Here, as for the main-body part 20, the cyclic | annular part 20a and the holding plate-like part 20c become a lamination direction upper side, and the cyclic | annular part 20b and the holding plate-like part 20d become a lamination direction lower side.

  The pair of annular portions 20a and 20b are positioned so that the post insertion hole 20f and the post insertion hole 20g face each other in the stacking direction in a state where they are stacked one above the other through the bent connecting portion 20e. A post insertion hole 20g is formed. Each of the post insertion hole 20f and the post insertion hole 20g has an inner peripheral wall surface formed by folding the sheet metal in the same direction, here, the lower side. Each of the post insertion hole 20f and the post insertion hole 20g has a taper corresponding to the taper of the battery post 51 described above on each inner peripheral wall surface. Here, of the post insertion hole 20f and the post insertion hole 20g, the side on which the shaft portion 10a of the stud bolt 10 protrudes, that is, the inner diameter on the post insertion hole 20f side is minimized, and the inner diameter on the opposite side post insertion hole 20g side. Is the maximum. Each of the post insertion hole 20f and the post insertion hole 20g is in contact with the battery post 51 in a state where the battery post 51 is inserted. Further, the pair of annular portions 20a and 20b are folded back toward each other at the edges between the bent connecting portion 20e and the pair of holding plate-like portions 20c and 20d, and are formed on the unevenness. 20k and 20l are engaged with each other.

  In addition, the pair of annular portions 20a and 20b are arranged such that the slit 20h and the slit 20i are in a positional relationship in which the slit 20h and the slit 20i are opposed to each other in the stacking direction in a state where the slit 20h and the slit 20i are stacked vertically via the bending connection portion 20e. It is formed. The slit 20h and the slit 20i are continuous at the bent connecting portion 20e, and extend as a whole from the bent connecting portion 20e to the post insertion hole 20f and the post insertion hole 20g at the bent connecting portion 20e and the annular portions 20a and 20b. doing. In other words, the slits 20h and 20i are formed to extend from the post insertion holes 20f and 20g to the bent connection portion 20e so as to divide a part of the annular portions 20a and 20b. Further, the pair of annular portions 20a and 20b constitute a tightening end portion 20m in which portions from the post insertion holes 20f and 20g to the bending connecting portion 20e are tightened by a tightening portion 30 described later. The slits 20h and 20i penetrate the fastening end portion 20m from the post insertion holes 20f and 20g to the bending connection portion 20e along the long side direction. The fastening end portion 20m is formed with substantially rectangular cutout portions 20n and 20o into which a part of the fastening portion 30 is fitted at both ends in the short side direction.

  The pair of holding plate-like portions 20c and 20d are bent in a state where the shaft portion 10a of the stud bolt 10 is inserted into the bolt insertion hole 20j in advance before the bending processing, so that the bending connecting portion 20e is interposed. The stud bolt 10 is held in a state where it is stacked up and down. Here, the holding plate-like portion 20c constitutes an upper plate formed with a bolt insertion hole 20j as a through hole through which the shaft portion 10a of the stud bolt 10 passes, and the holding plate-like portion 20d is a holding plate. A lower plate that holds the bolt head portion 10b of the stud bolt 10 between the plate-like portion 20c and the holding plate-like portion 20d facing the stacking direction (axial direction) is configured. That is, the pair of holding plate-like portions 20c and the holding plate-like portion 20d are stacked facing each other and hold the bolt head portion 10b between them. More specifically, the holding plate-like portion 20c and the holding plate-like portion 20d include folded portions 20p and 20q that are folded toward each other. The folded portion 20p is a portion where both ends of the short side direction in the holding plate-like portion 20c are folded toward the holding plate-like portion 20d, and the folded portion 20q is formed on both sides of the holding plate-like portion 20d on the short side direction. A part of the end portion and a tip portion in the long side direction (the end portion on the opposite side to the annular portion 20b side) are the portions that are folded back to the holding plate-like portion 20c side (see particularly FIG. 4, FIG. 5, etc.) ). Each folded portion 20q is folded so as to surround the end faces of the three sides of the bolt head portion 10b formed in a substantially hexagonal shape. Each folded portion 20p is located outside each folded portion 20q with respect to the short side direction. The holding plate-like portion 20c has a claw portion 20r protruding from a part of the tip of each folded portion 20p, and the claw portion 20r is connected to the back side of the holding plate-like portion 20d (the side holding the bolt head portion 10b). (See FIG. 4, FIG. 5 etc.). The bolt holding portion 22 constituted by the holding plate-like portions 20c and 20d is formed by bending each of the folded portions 20p and 20q, the claw portion 20r and the like in a state where the shaft portion 10a of the stud bolt 10 is inserted into the bolt insertion hole 20j. Is done. As a result, the bolt holding portion 22 is configured such that the folded portion 20q of the holding plate-like portion 20d holds the bolt head portion 10b between the holding plate-like portion 20c and the claw portion 20r of the turned-up portion 20p of the holding plate-like portion 20c. Is bent toward the back side of the holding plate-like portion 20d. That is, the bolt holding portion 22 holds the bolt head portion 10b of the stud bolt 10 between the holding plate-like portion 20c and the holding plate-like portion 20d in the stacking direction of the pair of holding plate-like portions 20c and 20d. .

  The stud bolt 10 is exposed so that the shaft portion 10a protrudes along the axial direction from the bolt insertion hole 20j while being held between the holding plate-like portion 20c and the holding plate-like portion 20d. In the stud bolt 10, the connection terminal 52 is electrically connected to the shaft portion 10a exposed from the bolt insertion hole 20j. The stud bolt 10 fastens the connection terminal 52 to the shaft portion 10a by screwing a nut 54 as a fastening member into the shaft portion 10a. In the above-described bolt holding portion 22, the holding plate-like portion 20 c constituting the upper plate is such that the nut 54 is screwed into the shaft portion 10 a of the stud bolt 10, so that the nut 54 and the bolt head portion 10 b of the stud bolt 10 are engaged. It is clamped with the connection terminal 52 between (refer especially FIG. 5 etc.).

  The fastening portion 30 fastens the pair of annular portions 20a and 20b to the battery post 51 in a state where the battery post 51 is inserted into the post insertion holes 20f and 20g. The tightening portion 30 includes a bolt 30a, a washer 30b, and a nut 30c. The bolt 30a is inserted from one end of the bending connecting portion 20e in a positional relationship that crosses the slits (gap) 20h and 20i. That is, the bolt 30a is inserted into a space portion formed so as to cross the slits 20h and 20i between the pair of annular portions 20a and 20b in a state where the bolts 30a are stacked vertically via the bent connecting portion 20e. More specifically, the bolt 30a extends from the one end side of the annular portions 20a, 20b to the other end side of the annular portions 20a, 20b across the slits 20h, 20i along the short side direction. The bolt 30 a has a bolt head formed in a substantially rectangular plate shape, and fits into a notch 20 o formed in the tightening end 20 m of the main body 20. The washer 30b is formed in a substantially rectangular plate shape, engages with a notch 20n formed in the fastening end 20m of the main body 20, and is interposed between the main body 20 and the nut 30c. The nut 30c is screwed into the tip portion of the bolt 30a exposed from the other end portion of the bent connecting portion 20e. Here, the short side direction corresponds to a direction crossing the slits 20h and 20i formed in the annular portions 20a and 20b. Typically, when the annular portions 20a and 20b are fastened to the battery post 51, the annular portion This corresponds to the direction in which 20a and 20b are tightened (tightening direction).

  The battery terminal 1 configured as described above is assembled to the battery post 51 by inserting the battery post 51 into the post insertion holes 20f and 20g in such a positional relationship that the shaft portion 10a of the stud bolt 10 is exposed. . The battery terminal 1 is tightened by tightening the bolt 30a and the nut 30c of the tightening portion 30 in a state where the inner peripheral surfaces of the post insertion holes 20f and 20g and the outer peripheral surface of the battery post 51 are in contact with each other. At 20 m, both sides of the bent connecting portion 20e and the annular portions 20a and 20b are tightened in the approaching direction with the slits 20h and 20i interposed therebetween. As a result, the battery terminal 1 has the tightening portion 30 when the diameters of the post insertion holes 20f and 20g are reduced in a state where the inner peripheral surfaces of the post insertion holes 20f and 20g are in contact with the outer peripheral surface of the battery post 51. The battery post 51 is fastened by the tightening force of. The battery terminal 1 is fixed by a nut 54 with a connection terminal 52 electrically connected to the shaft portion 10 a of the stud bolt 10. On the other hand, when the bolt 30a and the nut 30c of the tightening portion 30 are loosened, the battery terminal 1 is loosened in the separating direction on both sides of the bent connecting portion 20e and the annular portions 20a and 20b across the slits 20h and 20i. As a result, the battery terminal 1 becomes removable from the battery post 51 by increasing the diameters of the post insertion holes 20f and 20g.

  By the way, as shown in FIG. 3, the battery terminal 1 according to the present embodiment is mounted on a vehicle or the like to generate a vehicle vibration by being provided in a cantilever shape with the battery post 51 as a fulcrum with respect to the battery post 51. In this case, bending deformation may occur repeatedly along the axial direction of the battery post 51.

  Therefore, as shown in FIGS. 4 and 5, the battery terminal 1 of the present embodiment is provided on the holding plate-like portion 20 d constituting the lower plate in the bolt holding portion 22, and the stud bolt is screwed when the nut 54 is screwed. By configuring the rotation restricting portion 20s that restricts the rotation of the lens 10 to be in surface contact with the bolt head 10b, deformation of the battery post 51 along the axial direction is suppressed.

  Specifically, the rotation restricting portion 20 s abuts against the bolt head portion 10 b of the stud bolt 10 when the nut 54 is screwed, and restricts rotation around the shaft portion 10 a of the stud bolt 10. The rotation restricting portion 20s of the present embodiment forms a cutout 20t by cutting out a part of the holding plate-like portion 20d and folding back a piece 20u formed by folding the cutout portion toward the holding plate-like portion 20c. It is comprised including. The notch 20t is formed at the end of the holding plate-like portion 20d on the annular portion 20b side, and the folded piece 20u is formed by being folded back on the holding plate-like portion 20c side and the annular portion 20b side. The folded piece 20u is formed such that the folded ridge line is along the short side direction. In the folded piece 20u, a surface on the bolt head 10b side facing the bolt head 10b constitutes a contact surface 20v. On the other hand, in the bolt head portion 10b, an end surface of one side of the substantially hexagonal shape constitutes a contact surface 10c with the folded piece 20u. When the nut 54 is screwed into the shaft portion 10a of the stud bolt 10, the rotation restricting portion 20s is brought into contact with the contact surface 10c of the bolt head 10b by the contact surface 20v of the folded piece 20u. The rotation around the shaft portion 10a can be restricted.

  The rotation restricting portion 20s is configured such that the contact surface 20v of the folded piece 20u and the contact surface 10c of the bolt head portion 10b are in surface contact. The rotation restricting portion 20s of the present embodiment is formed as a deformed contact piece that is deformed by being pressed against the bolt head 10b, so that the contact surface 20v of the turn-up piece 20u is contacted with the bolt head 10b. It is formed so as to be in surface contact with the contact surface 10c. Here, in the battery terminal 1, the main body portion 20 including the rotation restricting portion 20s is formed of a relatively soft material, and the stud bolt 10 including the bolt head portion 10b is formed of a relatively hard material. That is, the folded piece 20u constituting the rotation restricting portion 20s is formed of a softer material than the stud bolt 10 including the bolt head portion 10b.

  Then, the folded piece 20u is inserted into the bolt insertion hole 20j in a state in which the folded piece 20u is slightly folded in advance to the holding plate-like portion 20c side and the annular portion 20b side, for example, as indicated by a dotted line in FIG. When the stud bolt 10 is assembled, the end face of the bolt head 10b further presses the folded piece 20u toward the holding plate-like portion 20c and the annular portion 20b, so that the contact surface 10c comes into close contact with the contact surface 20v. It is deformed to the holding plate-like portion 20c side and the annular portion 20b side while being pressed in the direction. Accordingly, the folded piece 20u can be deformed so that the contact surface 20v and the contact surface 10c are in close contact with each other, and the contact area between the contact surface 20v and the contact surface 10c can be relatively widened. A surface contact state is formed. Further, the folded piece 20u is brought into contact with the contact surface 20v and the contact surface 10c when, for example, the nut 54 is screwed into the shaft portion 10a of the stud bolt 10 as indicated by a dotted line in FIG. The bolt head 10b is deformed along the rotation direction of the bolt head 10b by pressing the folded piece 20u while the bolt head 10b rotates in the state. As a result, the folded piece 20u is deformed so that the gap between the contact surface 20v and the contact surface 10c is more closely contacted, and the contact surface 20v and the contact surface 10c are more reliably brought into surface contact. In other words, the rotation restricting portion 20s has a backlash filling portion in which the folded piece 20u formed as a deformed contact piece is deformed in this manner, so that the folded piece 20u closes the gap between the contact surface 20v and the contact surface 10c. Also works.

  According to the battery terminal 1 described above, the bolt head portion 10b is attached to one end of the post fastening portion 21 fastened to the battery post 51 and the shaft portion 10a connected to the post fastening portion 21 and connected to the connection terminal 52. A bolt holding portion 22 for holding the stud bolt 10 provided, and the bolt holding portion 22 is formed with a bolt insertion hole 20j through which the shaft portion 10a passes, and a nut 54 and a bolt head portion 10b that are fastened to the shaft portion 10a. Between the holding plate-like portion 20c sandwiched together with the connection terminal 52 and the holding plate-like portion 20c. The bolt head portion 10c is held between the holding plate-like portion 20c and the bolt head portion 10b. A holding plate-like portion 20d provided with a rotation restricting portion 20s for restricting the rotation of the stud bolt 10 around the shaft portion 10a. The rotation restricting portion 20s includes a bolt head portion 10b, Contact to.

  Accordingly, in the battery terminal 1, the post fastening portion 21 is fastened to the battery post 51, and the bolt holding portion 22 is configured such that the bolt head portion 10b of the stud bolt 10 is interposed between the holding plate-like portion 20c and the holding plate-like portion 20d. Hold. The battery terminal 1 has the holding plate-like portion 20c sandwiched between the nut 54 and the bolt head portion 10b, which are fastened to the shaft portion 10a of the stud bolt 10, and the bolt head portion 10b. Friction force generated on the surface of the holding plate-like portion 20c side pressed against the surface of the bolt head portion 10b of the holding plate-like portion 20c and in contact with each other (in other words, friction force generated by the fastening force of the nut 54) ), The stud bolt 10 and the holding plate-like portion 20c are fixed to the rigid and integrated. Further, the battery terminal 1 is held by the rotation restricting portion 20s provided on the holding plate-like portion 20d and contacting the bolt head 10b to restrict the rotation of the stud bolt 10 in surface contact with the bolt head 10b. The plate-like portion 20d and the stud bolt 10 are fixed to the rigid and integrated. Thereby, the battery terminal 1 can fix the three elements of the holding plate-like portion 20c, the holding plate-like portion 20d, and the stud bolt 10 to each other rigidly. As a result, in the battery terminal 1, the holding plate-like portion 20c, the holding plate-like portion 20d, and the stud bolt 10 can be securely fixed and integrated with each other, and the battery post 51 in the bolt holding portion 22 can be integrated in the axial direction. Since the rigidity along can be improved, deformation along the axial direction of the battery post 51 can be suppressed. As a result, the battery terminal 1 can suppress bending deformation along the axial direction of the battery post 51 even when the battery terminal 1 is mounted on a vehicle or the like and vibrations occur. Vibration resistance and durability can be improved.

  Further, according to the battery terminal 1 described above, the rotation restricting portion 20s is deformed by being pressed by the bolt head 10b, and includes a folded piece 20u that closes a gap with the bolt head 10b. Consists of. Therefore, in the battery terminal 1, the folded piece 20u formed as a deforming contact piece is pressed and deformed by the bolt head 10b, so that the folded piece 20u has a gap between the rotation restricting portion 20s and the bolt head 10b. It also functions as a backlash stuffing part to be stuffed, whereby the rotation restricting part 20s can be reliably brought into surface contact with the bolt head part 10b. As a result, the battery terminal 1 can more reliably suppress deformation along the axial direction of the battery post 51.

[Embodiment 2]
FIG. 6 is a partial cross-sectional view illustrating a schematic configuration of the battery terminal according to the second embodiment. The battery terminal according to the second embodiment is different from the first embodiment in the configuration of the rotation restricting portion. In addition, about the structure, operation | movement, and effect which are common in embodiment mentioned above, the overlapping description is abbreviate | omitted as much as possible. In addition, the above-described drawings are referred to as appropriate for the same configuration as the above-described embodiment (the same applies hereinafter).

  The battery terminal 201 according to the present embodiment shown in FIG. 6 is provided on the holding plate-like portion 20 d constituting the lower plate in the bolt holding portion 22, and is a rotation that restricts the rotation of the stud bolt 10 when the nut 54 is screwed. By configuring the restricting portion 220s to be in surface contact with the bolt head 10b, deformation of the battery post 51 along the axial direction is suppressed.

  Specifically, the rotation restricting portion 220s abuts against the bolt head 10b of the stud bolt 10 when the nut 54 is screwed, and restricts the rotation of the stud bolt 10 around the shaft portion 10a. The rotation restricting portion 220s of the present embodiment is formed by notching a part of the holding plate-like portion 20d to form a notch 20t and folding the notched portion toward the holding plate-like portion 20c. A folded piece 220u as a part, and a filling 220w filled between the folded piece 220u formed integrally with the holding plate-like part 20d and the bolt head 10b. The notch 20t is formed at the end of the holding plate-like portion 20d on the annular portion 20b side, and the folded piece 220u is formed by being folded back on the holding plate-like portion 20c side and the annular portion 20b side. The folded piece 220u is formed such that the folded ridge line is along the short side direction. The filler 220w is filled between the folded piece 220u and the bolt head 10b. For example, a brazed body or a welded body is used. The filling 220w constitutes a contact surface 220v in which the surface on the bolt head 10b side comes into surface contact with the bolt head 10b. The rotation restricting portion 220s also functions as a backlash filling portion for filling the gap between the filler 220w and the contact surface 10c. On the other hand, in the bolt head portion 10b, an end surface of one side of the substantially hexagonal shape constitutes a contact surface 10c with the filler 220w.

  In the battery terminal 201 described above, the holding plate-like portion 20c, the holding plate-like portion 20d, and the stud bolt 10 can be securely fixed and integrated with each other, and the axial direction of the battery post 51 in the bolt holding portion 22 can be integrated. Therefore, the deformation along the axial direction of the battery post 51 can be suppressed.

  Furthermore, according to the battery terminal 201 described above, the rotation restricting portion 220s is filled between the folded piece 220u formed integrally with the holding plate-like portion 20d and the bolt head portion 10b. It is configured to include a filling 220w that closes the gap with the head 10b. Therefore, the battery terminal 201 is filled with a backlash that fills the gap between the rotation restricting portion 220s and the bolt head 10b when the filler 220w is filled between the folded piece 220u and the bolt head 10b. The rotation restricting portion 220s can be reliably brought into surface contact with the bolt head portion 10b. As a result, the battery terminal 201 can more reliably suppress deformation along the axial direction of the battery post 51.

[Embodiment 3]
FIG. 7 is a schematic cross-sectional view illustrating a schematic configuration of the battery terminal according to the third embodiment. FIG. 8 is a schematic cross-sectional view illustrating a schematic configuration of a battery terminal according to a modification. The battery terminal according to the third embodiment is different from the first and second embodiments in that it has a pressing portion.

  In the battery terminal 301 according to this embodiment shown in FIG. 7, the bolt holding portion 22 has a pressing portion 340. The pressing part 340 presses the bolt head 10b of the stud bolt 10 held by the bolt holding part 22 toward the rotation restricting part 20s. The pressing part 340 includes a leaf spring part 320q as an elastic part that urges the bolt head part 10b toward the rotation restricting part 20s. The leaf spring portion 320q is a folded portion 20q formed by being folded so as to surround the end faces of the three sides of the bolt head portion 10b formed in a substantially hexagonal shape in the battery terminal 1 of the first embodiment (see FIG. 4 and the like). Are provided in place of two on both sides of the short side. Each leaf spring part 320q is a part of a part of the holding plate-like part 20d (see FIG. 4 etc.) constituting the lower plate, in which a part of the ends on both sides in the short side direction is folded back to the holding plate-like part 20c side. It is. Each leaf spring portion 320q is formed by press bending or the like so as to be adjacent to both sides in the short side direction of the folded portion 20q. Each leaf spring portion 320q may be formed in a shape having a bent portion (a so-called folding screen shape) or may be formed in a flat plate shape. Each leaf spring part 320q is formed at a position facing the folded piece 20u constituting the rotation restricting part 20s across the bolt head part 10b. Each leaf spring part 320q abuts against the end face of the bolt head part 10b and presses the bolt head part 10b toward the rotation restricting part 20s by urging the bolt head part 10b toward the folded piece 20u.

  In the battery terminal 301 described above, the holding plate-like portion 20c, the holding plate-like portion 20d, and the stud bolt 10 can be securely fixed and integrated with each other, and the axial direction of the battery post 51 in the bolt holding portion 22 can be integrated. Therefore, the deformation along the axial direction of the battery post 51 can be suppressed.

  Furthermore, according to the battery terminal 301 described above, the bolt holding portion 22 includes the pressing portion 340 that presses the bolt head portion 10b toward the rotation restricting portion 20s. Accordingly, the battery terminal 301 can more reliably bring the rotation restricting portion 20s and the bolt head portion 10b into surface contact with each other by the pressing portion 340 pressing the bolt head portion 10b toward the rotation restricting portion 20s. As a result, in the battery terminal 301, the holding plate-like portion 20c, the holding plate-like portion 20d, and the stud bolt 10 can be securely fixed and integrated with each other, so that the battery post 51 is deformed along the axial direction. Can be more reliably suppressed.

  Furthermore, according to the battery terminal 301 described above, the pressing portion 340 includes the leaf spring portion 320q that urges the bolt head portion 10b toward the rotation restricting portion 20s. Therefore, the battery terminal 301 presses the bolt head portion 10b toward the rotation restricting portion 20s by the urging force of the leaf spring portion 320q, and makes sure that the folded piece 20u of the rotation restricting portion 20s and the bolt head portion 10b are in surface contact. Can do.

  The battery terminal 301 is provided with a pressing portion 340 in combination with a folded piece 20u formed as a deforming contact piece, thereby realizing a structure that makes the surface of the rotation restricting portion 20s and the bolt head portion 10b more reliable. May be.

  Further, the battery terminal 301 may be configured such that the folded piece 20u constituting the rotation restricting portion 20s has a divided structure, and the folded piece 20u having the divided structure is brought into surface contact with the bolt head 10b.

  The battery terminal 301A according to the modification shown in FIG. 8 is configured such that the rotation restricting portion 320sA includes two folded pieces 320uA. The two folded pieces 320uA are formed by cutting out a part of the holding plate-like portion 20d (see FIG. 4 and the like) to form a cutout 20t (see FIG. 4 and the like) as in the above-described folded piece 20u. It is formed by folding the portion back to the holding plate-like portion 20c. Here, each folded piece 320uA is formed such that the folded ridge lines are inclined opposite to each other with respect to the short side direction. The two folded pieces 320uA are in surface contact with the end surface of one side of the bolt head 10b formed in a substantially hexagonal shape. That is, here, the two folded pieces 320uA are arranged in a substantially square shape (a mold in which an obtuse angle portion is formed), and are in surface contact with the adjacent end faces of the two sides of the end face of the bolt head 10b. To do. The pressing portion 340A of the battery terminal 301A includes a leaf spring portion 320qA as an elastic portion that biases the bolt head portion 10b toward the rotation restricting portion 320sA. The leaf spring portion 320qA is formed so as to abut on the end surfaces of two adjacent sides of the end surface of the bolt head portion 10b formed in a substantially hexagonal shape. Each leaf spring part 320qA is formed at a position facing each folded piece 320uA constituting the rotation restricting part 320sA across the bolt head 10b. Each leaf spring part 320qA abuts against the end face of the bolt head part 10b and presses the bolt head part 10b toward the rotation restricting part 320sA side by urging the bolt head part 10b toward the folded piece 320uA. Thereby, the battery terminal 301 presses the bolt head 10b to the rotation restricting portion 320sA side by the urging force of the two leaf spring portions 320qA, whereby two folded pieces 320uA having a divided structure constituting the rotation restricting portion 320sA, That is, the bolt head 10b can be more stably pressed against the two folded pieces 320uA arranged in a substantially square shape (a mold in which an obtuse angle portion is formed).

[Embodiment 4]
FIG. 9 is a rear view illustrating a schematic configuration of the battery terminal according to the fourth embodiment. 10 is a partial cross-sectional view taken along line BB shown in FIG. The battery terminal according to the fourth embodiment is different from the third embodiment in the configuration of the pressing portion.

  In the battery terminal 401 according to this embodiment shown in FIGS. 9 and 10, the bolt holding part 22 has a pressing part 440. The pressing part 440 presses the bolt head 10b of the stud bolt 10 held by the bolt holding part 22 toward the rotation restricting part 20s. The pressing portion 440 is a portion that holds the bolt head portion 10b in the bolt holding portion 22 and is a portion that faces the rotation restricting portion 20s with the bolt head portion 10b interposed therebetween, here, from each turn-up portion 20q to the bolt head portion 10b side. The projection part 420x which protrudes in is comprised. Each protrusion 420x is formed to protrude from the surface facing the end surface of the bolt head 10b to the end surface side of the bolt head 10b in each folded portion 20q. Each protrusion 420x is configured by, for example, embossing or a bead. Here, each protrusion 420x is illustrated as extending in the axial direction, but is not limited thereto. Each protrusion 420x abuts against the end surface of the bolt head 10b and presses the bolt head 10b toward the folded piece 20u, for example, when each folded portion 20q is bent. The part 10b is pressed toward the rotation restricting part 20s.

  In the battery terminal 401 described above, the holding plate-like portion 20c, the holding plate-like portion 20d, and the stud bolt 10 can be securely fixed and integrated with each other, and the axial direction of the battery post 51 in the bolt holding portion 22 can be integrated. Therefore, the deformation along the axial direction of the battery post 51 can be suppressed.

  Further, in the battery terminal 401 described above, the pressing portion 440 presses the bolt head portion 10b toward the rotation restricting portion 20s, so that the rotation restricting portion 20s and the bolt head portion 10b can be brought into surface contact more reliably. it can. As a result, in the battery terminal 401, the holding plate-like portion 20c, the holding plate-like portion 20d, and the stud bolt 10 can be securely fixed and integrated with each other, so that the battery post 51 is deformed along the axial direction. Can be more reliably suppressed.

  Furthermore, according to the battery terminal 401 described above, the pressing portion 440 is a portion that holds the bolt head portion 10b in the bolt holding portion 22 and that faces the rotation restricting portion 20s across the bolt head portion 10b. A protrusion 420x that protrudes toward the bolt head 11b is included. Therefore, the battery terminal 401 can press the bolt head 10b toward the rotation restricting portion 20s by the protrusion 420x, and can reliably bring the folded-back piece 20u of the rotation restricting portion 20s into contact with the bolt head 10b.

  In addition, the battery terminal which concerns on embodiment of this invention mentioned above is not limited to embodiment mentioned above, A various change is possible in the range described in the claim. The battery terminal according to the present embodiment may be configured by appropriately combining the components of the embodiments described above.

  The bolt head 10b as the base described above has been described as being formed in a substantially hexagonal shape, but is not limited thereto, and may be, for example, a substantially rectangular shape. The battery terminals 1, 201, 301, 301A, 401 form folding portions 20p, 20q, claw portions 20r, rotation restricting portions 20s, 220s, 320sA, etc. according to the shape of the bolt head 10b, and the rotation restricting portions 20s, What is necessary is just to be comprised so that 220s and 320sA and the bolt head 10b may surface-contact.

  In the above description, the main body portion 20 includes a pair of annular portions 20a and 20b, a pair of holding plate-like portions 20c and 20d, and a bending connecting portion 20e, which are integrally formed by press bending a conductive metal plate. Although described as what is formed, it is not restricted to this. The main body portion 20 does not include, for example, the bent connecting portion 20e, and the upper divided body (annular portion 20a, holding plate-like portion 20c) and the lower divided body (annular portion 20b, holding plate-like portion 20d) with respect to the axial direction. And may have a configuration in which the upper divided body and the lower divided body configured separately are integrated.

  In the above description, the notch 20t is formed at the end of the holding plate-like portion 20d on the annular portion 20b side, and the folded piece 20u is formed by being folded back on the holding plate-like portion 20c side and the annular portion 20b side. In the above description, the folded ridge line is formed so as to be along the short side direction.

  In the above description, the fastening portion 30 has been described as including the bolt 30a, the washer 30b, and the nut 30c. However, the present invention is not limited to this type, and other types may be used.

  The folded piece 20u described above is formed of a softer material than the stud bolt 10 including the bolt head portion 10b, and the folded piece 20u side has been described as being deformed by being pressed by the bolt head portion 10b, but is not limited thereto. The stud bolt 10 may be formed of a softer material than the folded piece 20u, and the bolt head 10b side may be deformed.

1, 201, 301, 301A, 401 Battery terminal 10 Stud bolt (connection member)
10a Shaft 10b Bolt head (base)
20c Holding plate (upper plate)
20d Holding plate (lower plate)
20j Bolt insertion hole (through hole)
20s, 220s, 320sA Rotation restricting part 20u, 320uA Folding piece (deformation contact piece, backlash filling part)
21 Post fastening part 22 Bolt holding part (connection member holding part)
51 Battery post 52 Connection terminal (member for connection)
54 Nut (fastening member)
220u Folding piece (rotation restricting body)
220w Filling (backlash filling part)
320q, 320qA leaf spring part (elastic part)
340, 340A, 440 Pressing part 420x Protruding part

Claims (7)

A post fastening portion fastened to the battery post;
A connection member holding portion that is connected to the post fastening portion and holds a connection member provided with a base at one end of a shaft portion to which a connection partner member is connected;
The connection member holding portion includes an upper plate formed between a base member and a fastening member formed with a through-hole through which the shaft portion passes, and the base plate, and the upper plate. A lower plate provided with a rotation restricting portion that is opposed to and holds the base between the upper plate and abuts against the base and restricts rotation of the connecting member around the shaft portion;
The rotation restricting portion is in surface contact with the base portion,
Battery terminal. The rotation restricting portion is configured to include a backlash filling portion that closes a gap with the base portion.
The battery terminal according to claim 1. The rotation restricting portion includes a deforming contact piece that is deformed by being pressed by the base portion.
The battery terminal according to claim 1 or 2. The rotation restricting portion is configured to include a filler filled between the rotation restricting main body portion and the base portion formed integrally with the lower plate,
The battery terminal according to any one of claims 1 to 3. The connection member holding part has a pressing part that presses the base part toward the rotation restricting part.
The battery terminal according to any one of claims 1 to 4. The pressing portion includes an elastic portion that biases the base toward the rotation restricting portion.
The battery terminal according to claim 5. The pressing portion includes a protrusion that protrudes toward the base from a portion that holds the base in the connection member holding portion and faces the rotation restricting portion with the base interposed therebetween.
The battery terminal according to claim 5 or 6.

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