JP6522375B2 - Battery terminal - Google Patents

Description

  The present invention relates to a battery terminal.

  As a conventional battery terminal, for example, in Patent Document 1, a post holding portion externally fitted and connected to a battery post erected on a battery main body, and an electric wire formed separately from the post holding portion A battery terminal is disclosed comprising a terminal body configured to include a wire connection to be connected and a pivot connection that pivotally connects the wire connection to a post-holding portion. The battery terminal is attached to the terminal main body such that a part of the battery terminal abuts on the wire connection part and the other part abuts on the battery body, thereby restricting the rotation of the wire connection part with respect to the post holding part Equipped with

JP, 2011-134519, A

  By the way, the battery terminal described in the above-mentioned patent document 1 is mounted on a vehicle or the like, for example, by being provided in a cantilever shape with respect to the battery post with the battery post as a fulcrum, and when the vehicle vibration occurs. There may be repeated bending deformations along the axial direction of the post, and there is room for further improvement in this regard.

  This invention is made in view of said situation, Comprising: It aims at providing the battery terminal which can suppress the deformation | transformation along the axial direction of a battery post.

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

  Further, in the battery terminal, the rotation restricting portion may be configured to include a backlash filling portion for closing a gap with the base.

  Further, in the battery terminal, the rotation restricting portion may be configured to include a deformation contact piece that is pressed and deformed by the base.

  Further, in the battery terminal, the rotation restricting portion can be configured to include a filler filled between the rotation restricting main body portion integrally formed with the lower plate and the base portion. .

  Further, in the battery terminal, the connection member holding portion may have a pressing portion that presses the base toward the rotation restricting portion.

  Further, in the battery terminal, the pressing portion can be configured to include an elastic portion that biases the base toward the rotation restricting portion.

  Further, in the battery terminal, the pressing portion is a portion for holding the base in the connection member holding portion, and a protrusion for projecting the base to the side from a portion facing the rotation restricting portion with the base interposed therebetween. 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 connecting member holding portion holds the base of the connecting member between the upper plate and the lower plate. The battery terminal has the upper plate sandwiched with the connection counterpart member between the fastening member and the base fastened to the shaft portion of the connection member, and is provided on the lower plate and in contact with the base to rotate the connection member. Since the rotation restricting portion to be restricted is in surface contact with the base, the upper plate, the lower plate and the connecting member can be fixed to each other in a rigid manner. As a result, the battery terminal can securely fix and integrate the upper plate, the lower plate, and the connecting member with each other, and the rigidity of the connecting member holding portion along the axial direction of the battery post can be improved. Therefore, it is possible to suppress the deformation along the axial direction of the battery post.

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

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

Embodiment 1
FIG. 1 is an exploded perspective view showing a schematic configuration of a battery terminal according to a first embodiment. FIG. 2 is a perspective view showing a schematic configuration of the battery terminal according to the first embodiment. FIG. 3 is a side view showing a schematic configuration of the battery terminal according to the first embodiment. FIG. 4 is a rear view showing a schematic configuration of the battery terminal according to the first embodiment. FIG. 5 is a partial cross-sectional view taken along line A-A 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 so that the battery 50 and the connection terminal 52 as a connection counterpart member provided at the end of the electric wire on the main body side of the vehicle etc. on which the battery 50 is mounted are electrically Components for connecting The battery 50 is mounted on a vehicle or the like as a power storage device. The battery 50 is provided on one surface of a battery housing 53 that accommodates a battery fluid and various components that constitute the battery 50, typically on the surface positioned vertically upward with the battery 50 mounted on a vehicle. The battery post 51 is erected. The battery post 51 protrudes vertically upward from the upper surface of the battery housing 53 in the vertical direction. The battery post 51 is formed in a cylindrical shape, more specifically, in a cylindrical shape (or a cylindrical shape) tapered so as to decrease in diameter toward the tip 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 proximal 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, the direction along the central axis X of the battery post 51 is referred to as the axial direction. Here, in order to make the following description easy to understand, for convenience, one of the two directions orthogonal to the axial direction is the long side direction (first width direction), and the other is 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 connection member, a main body portion 20, and a tightening portion 30.

  The stud bolt 10 is configured to include a shaft portion 10a to which the connection terminal 52 is connected, and a bolt head 10b as a base provided at one end of the shaft portion 10a (in particular, refer to FIGS. 4 and 5). . The shaft portion 10a is formed in a cylindrical shape and a screwing groove is formed on the outer peripheral surface. The bolt head 10 b is a pedestal portion on which the shaft portion 10 a is erected. The bolt head 10b is formed as a portion having a larger diameter than the shaft portion 10a, and here, is formed in a substantially hexagonal shape.

  The main body portion 20 includes a post fastening portion 21 fastened to the battery post 51, and a bolt holding portion 22 as a connecting member holding portion connected to the post fastening portion 21 and holding the stud bolt 10. The main body portion 20 is, 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 processing or the like of a conductive metal plate. 20d and a bending connection portion 20e are integrally formed.

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

  The pair of holding plate portions 20c, 20d is 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 portion 20c side. The holding plate 20c is integrally formed to be continuous with the annular portion 20a, and the holding plate 20d is integrally formed to be continuous with the annular portion 20b.

  The annular portion 20a and the annular portion 20b are integrally formed such that the end portions on the opposite side to the end portions where the holding plate portions 20c and 20d are provided are continuous via the bending connection portion 20e. Be done. Thereby, the main body portion 20 is formed in a state of being folded back in a U-turn shape, sandwiching the bending connection portion 20e, and the annular portion 20a, the holding plate portion 20c, the annular portion 20b, and the holding plate portion 20d It is formed to be in a state of facing in the direction and being stacked in a plate shape substantially parallel to each other in the vertical direction.

  Here, the state of being stacked vertically is typically equivalent to a state of being stacked along the axial direction of the battery post 51 in a state where the battery terminal 1 is assembled to the battery post 51. Do. In addition, the stacking direction is a direction along the axial direction, typically, 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 tip 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, in the main body portion 20, the annular portion 20a and the holding plate portion 20c are on the upper side in the stacking direction, and the annular portion 20b and the holding plate portion 20d are on the lower side in the stacking direction.

  The pair of annular portions 20a and 20b are in a state in which the post insertion holes 20f and the post insertion holes 20g face each other in the stacking direction in a state in which the pair of annular portions 20a and 20b are stacked vertically via the bending connection portion 20e. , Post insertion holes 20g are formed. The post insertion holes 20 f and the post insertion holes 20 g are formed by respectively turning the sheet metal in the same direction, here, the lower side, so as to form an inner peripheral wall surface. The post insertion holes 20f and the post insertion holes 20g have tapers corresponding to the tapers of the above-described battery posts 51 on the respective inner peripheral wall surfaces. Here, the side of the post insertion hole 20f and the post insertion hole 20g from which the shaft portion 10a of the stud bolt 10 protrudes, that is, the inner diameter on the post insertion hole 20f side becomes minimum, and the inner diameter on the opposite side of the post insertion hole 20g Is the largest. The inner peripheral surfaces of the post insertion holes 20 f and the post insertion holes 20 g are in contact with the battery posts 51 in a state where the battery posts 51 are inserted. Further, in the pair of annular portions 20a and 20b, the edge portions between the bending connection portion 20e and the pair of holding plate portions 20c and 20d are folded back toward each other, and the folded portions formed on the concavities and convexities 20k and 20l engage with each other.

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

  The pair of holding plate portions 20c and 20d are bent in a state in which the shaft portion 10a of the stud bolt 10 is inserted into the bolt insertion hole 20j in advance before bending, so that the bending connecting portion 20e is formed. The stud bolt 10 is held in a state of being stacked vertically. Here, the holding plate portion 20c constitutes an upper plate in which a bolt insertion hole 20j is formed as a through hole through which the shaft portion 10a of the stud bolt 10 passes, and the holding plate portion 20d is a upper 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 is configured to face in the stacking direction (axial direction). That is, the pair of holding plate portions 20c and the holding plate portions 20d are stacked to face each other, and hold the bolt head 10b between each other. More specifically, the holding plate 20c and the holding plate 20d have folded portions 20p and 20q that are folded back toward each other. The folded back portion 20p is a portion in which the end portions on both sides in the short side direction in the holding plate 20c are folded back to the holding plate 20d, and the folded back portion 20q is formed on both sides in the short side of the holding plate 20d. A part of the end and the tip in the long side direction (the end opposite to the annular part 20b) are the part folded back toward the holding plate 20c (see particularly FIG. 4, FIG. 5 etc.) ). Each folded portion 20 q is formed by being folded back so as to surround the end faces of three sides of the bolt head 10 b formed in a substantially hexagonal shape. Each folded portion 20p is located outside of each folded portion 20q in the short side direction. The holding plate 20c has the claw 20r projecting from a part of the tip of each folded portion 20p and the claw 20r is the back side of the holding plate 20d (the side holding the bolt head 10b) Is folded back to the opposite side) (see especially FIG. 4, FIG. 5 etc.). In the bolt holding portion 22 constituted by the holding plate portions 20c and 20d, respective portions such as the folded back portions 20p and 20q and the claws 20r are bent in a state where the shaft portion 10a of the stud bolt 10 is inserted into the bolt insertion hole 20j. Be done. Thereby, in the bolt holding portion 22, the folded back portion 20q of the holding plate portion 20d holds the bolt head 10b between the holding plate portion 20c and the claw portion 20r of the folded portion 20p of the holding plate portion 20c. Is bent to the back side of the holding plate 20d. That is, the bolt holding portion 22 holds the bolt head portion 10b of the stud bolt 10 between the holding plate portion 20c and the holding plate portion 20d in the stacking direction of the pair of holding plate portions 20c and 20d. .

  The stud bolt 10 is exposed in such a manner that the shaft 10a protrudes from the bolt insertion hole 20j in the axial direction in a state of being held between the holding plate 20c and the holding plate 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 10 a by screwing a nut 54 as a fastening member to the shaft portion 10 a. In the above-described bolt holding portion 22, the holding plate-like portion 20 c constituting the upper plate is made of the nut 54 and the bolt head 10 b of the stud bolt 10 by screwing the nut 54 onto the shaft portion 10 a of the stud bolt 10. It is held together with the connection terminal 52 (see particularly FIG. 5 etc.).

  The tightening portion 30 fastens the pair of annular portions 20 a and 20 b to the battery post 51 in a state where the battery post 51 is inserted into the post insertion holes 20 f and 20 g. The tightening portion 30 includes a bolt 30 a, a washer 30 b, and a nut 30 c. The bolt 30a is inserted from one end of the bending connection portion 20e in such a positional relationship as to cross the slits (gaps) 20h and 20i. That is, the bolt 30a is inserted into a space formed so as to cross the slits 20h and 20i between the pair of annular parts 20a and 20b in a state of being vertically stacked via the bending connection part 20e. Furthermore, the bolt 30a extends from one end of the annular portions 20a and 20b to the other end of the annular portions 20a and 20b with the slits 20h and 20i interposed therebetween along the short side direction. The bolt head is formed in a substantially rectangular plate shape, and the bolt 30 a engages with 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, and engages with a notch 20n formed in the tightening 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 of the bending connection portion 20e. Here, the short side direction corresponds to a direction crossing the slits 20 h and 20 i formed in the annular portions 20 a and 20 b, and typically, when the annular portions 20 a and 20 b are fastened to the battery post 51 It corresponds to the direction (tightening direction) in which 20a and 20b are tightened.

  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 20 f and 20 g in such a positional relationship that the shaft portion 10 a 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 are in contact with the outer peripheral surface of the battery post 51. At 20 m, both sides of the bending connection portion 20 e and the annular portions 20 a and 20 b are tightened in the approaching direction with the slits 20 h and 20 i interposed therebetween. As a result, in the battery terminal 1, the diameter of the post insertion holes 20 f and 20 g is reduced while the inner peripheral surfaces of the post insertion holes 20 f and 20 g are in contact with the outer peripheral surface of the battery post 51. Is tightened to the battery post 51 by the tightening force. Then, in the battery terminal 1, the connection terminal 52 is electrically connected to the shaft portion 10 a of the stud bolt 10, and is fixed by the nut 54. On the other hand, when the battery terminal 1 loosens the bolt 30a and the nut 30c of the tightening portion 30, both sides of the bending connection portion 20e and the annular portions 20a and 20b are loosened in the separating direction across the slits 20h and 20i. As a result, the battery terminal 1 can be removed from the battery post 51 by enlarging the diameters of the post insertion holes 20 f and 20 g.

  By the way, as shown in FIG. 3, the battery terminal 1 of the present embodiment is provided in a cantilever shape with respect to the battery post 51 with the battery post 51 as a fulcrum so that it is mounted on a vehicle or the like and vehicle vibration occurs. At the same time, 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 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 10 to be in surface contact with the bolt head 10b, the deformation of the battery post 51 in the axial direction is suppressed.

  Specifically, the rotation restricting portion 20 s abuts against the bolt head 10 b of the stud bolt 10 when the nut 54 is screwed, and restricts the rotation of the stud bolt 10 around the shaft portion 10 a. The rotation restricting portion 20s of the present embodiment is formed by notching a part of the holding plate portion 20d to form a notch 20t and folding back the notched portion toward the holding plate portion 20c side. It is comprised including. The notch 20t is formed at an end of the holding plate 20d on the side of the annular portion 20b, and the folded piece 20u is formed by turning back on the side of the holding plate 20c and the side of the annular 20b. The folded piece 20 u is formed such that the folded ridge line extends along the short side direction. In the folded-back piece 20u, the surface on the bolt head 10b side facing the bolt head 10b constitutes an abutting surface 20v. On the other hand, in the bolt head 10b, the end face of one side of the substantially hexagonal shape constitutes the contact face 10c with the folded piece 20u. When screwing the nut 54 to the shaft portion 10a of the stud bolt 10, the rotation restricting portion 20s abuts the contact surface 20v of the folded piece 20u with the contact surface 10c of the bolt head 10b, thereby the stud bolt 10 concerned. It is possible to regulate the rotation around the shaft portion 10a.

  The rotation restricting portion 20s is configured such that the contact surface 20v of the turnback piece 20u and the contact surface 10c of the bolt head 10b are in surface contact with each other. The rotation restricting portion 20s of this embodiment is formed as a deformation contact piece in which the folded back piece 20u is pressed and deformed by the bolt head 10b, so that the contact surface 20v of the folded back piece 20u is a contact of the bolt head 10b. It is formed to be in surface contact with the contact surface 10c. Here, the battery terminal 1 is formed of a relatively soft material for the main body portion 20 including the rotation restricting portion 20s, and is formed of a relatively hard material for the stud bolt 10 including the bolt head 10b. That is, the folded back piece 20u constituting the rotation restricting portion 20s is formed of a material softer than the stud bolt 10 including the bolt head 10b.

  Then, for example, as shown by a dotted line in FIG. 5, the folded back piece 20u is inserted in the bolt insertion hole 20j in a state where the folded back piece 20u is slightly folded in advance toward the holding plate 20c and the annular part 20b. When the stud bolt 10 is assembled, the end face of the bolt head 10b further presses the folded-back piece 20u to the holding plate portion 20c side and the annular portion 20b side, and the contact surface 10c adheres to the contact surface 20v. While being pressed in the direction, it is deformed to the holding plate 20c side and to the annular portion 20b side. As a result, the folded back piece 20u is 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 made relatively wide. , Surface contact state is formed. Furthermore, as shown by a dotted line in FIG. 4, for example, when the nut 54 is screwed to the shaft portion 10 a of the stud bolt 10, the abutting surface 20 v abuts on the abutting surface 10 c. By pressing the folded piece 20u while rotating the bolt head 10b in the state, the bolt head 10b is deformed along the rotation direction of the bolt head 10b. As a result, the folded back piece 20u is deformed so that the gap between the contact surface 20v and the contact surface 10c is in close contact, and the contact surface 20v and the contact surface 10c come into surface contact more reliably. That is, in the rotation restricting portion 20s, when the folded back piece 20u formed as the deformed abutting piece is deformed in this way, the backlash piece 20u closes the gap between the abutting surface 20v and the abutting surface 10c. It also works as

  According to the battery terminal 1 described above, the post fastening portion 21 fastened to the battery post 51 and the bolt head 10b are connected to one end of the shaft portion 10a connected to the post fastening portion 21 and to which the connection terminal 52 is connected. A bolt holding portion 22 for holding the provided stud bolt 10 is 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 10b fastened to the shaft portion 10a And holding the bolt head portion 10b between the holding plate portion 20c and the holding plate portion 20c, and holding the bolt head portion 10b between the holding plate portion 20c and the holding plate portion 20c. And a holding plate 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 10b and a rotation restricting portion 20s. Contact to.

  Therefore, in the battery terminal 1, the post fastening portion 21 is fastened to the battery post 51, and the bolt holding portion 22 is the bolt head 10 b of the stud bolt 10 between the holding plate 20 c and the holding plate 20 d. Hold. The battery terminal 1 is formed by holding the holding plate 20c together with the connection terminal 52 between the nut 54 and the bolt head 10b fastened to the shaft 10a of the stud bolt 10. The surface on the holding plate 20c side is pressed against the surface of the bolt head 10b of the holding plate 20c, and the frictional force generated on the mutually abutting surfaces (in other words, the frictional force generated by the fastening force of the nut 54) The stud bolt 10 and the holding plate portion 20c are fixed to the rigid body and integrated. Further, the battery terminal 1 is held because the rotation restricting portion 20s provided on the holding plate 20d and in contact with the bolt head 10b to restrict rotation of the stud bolt 10 is in surface contact with the bolt head 10b. The plate portion 20d and the stud bolt 10 are fixed to the rigid and integrated. Thus, the battery terminal 1 can fix the three components of the holding plate 20c, the holding plate 20d, and the stud bolt 10 to each other in a rigid manner. As a result, the battery terminal 1 can securely fix and integrate the holding plate 20c, the holding plate 20d, and the stud bolt 10 with each other in the axial direction of the battery post 51 in the bolt holding portion 22. Since the rigidity along with it can be improved, the deformation along the axial direction of the battery post 51 can be suppressed. Thus, even if battery terminal 1 is mounted on a vehicle or the like and vehicle vibration occurs, bending deformation along the axial direction of battery post 51 can be suppressed, so distortion generated during vehicle vibration is suppressed. Vibration resistance and durability can be improved.

  Furthermore, according to the battery terminal 1 described above, the rotation restricting portion 20s includes a folded back piece 20u which is pressed by the bolt head 10b and deformed, and which is used to close a gap with the bolt head 10b. It consists of Therefore, in the battery terminal 1, when the folded back piece 20u formed as a deformed abutting piece is pressed by the bolt head 10b and deformed, the folded back piece 20u forms a gap between the rotation restricting portion 20s and the bolt head 10b. The rotation restricting portion 20s can also be brought into surface contact with the bolt head 10b with certainty. As a result, the battery terminal 1 can suppress deformation in the axial direction of the battery post 51 more reliably.

Second Embodiment
FIG. 6 is a partial cross-sectional view showing a schematic configuration of a battery terminal according to a second embodiment. The battery terminal according to the second embodiment differs from the first embodiment in the configuration of the rotation restricting portion. Other than the above, duplicate explanations of the configurations, operations, and effects common to the above-described embodiment will be omitted as much as possible. In addition, reference is made to the drawings described above for the same configuration as the above-described embodiment as appropriate (the same applies to the following).

  The battery terminal 201 according to the present embodiment shown in FIG. 6 is provided on the holding plate-like portion 20d constituting the lower plate in the bolt holding portion 22, and 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, the deformation of the battery post 51 in the axial direction is suppressed.

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

  The battery terminal 201 described above can securely fix and unify the holding plate 20c, the holding plate 20d, and the stud bolt 10 with each other in the axial direction of the battery post 51 in the bolt holding portion 22. The rigidity along the direction can be improved, so that deformation in 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 to be filled between the folded back piece 220u formed integrally with the holding plate portion 20d and the bolt head 10b. It is configured to include a filler 220w that is used to close the gap with the head 10b. Therefore, in the battery terminal 201, the filler 220w is filled between the turnback piece 220u and the bolt head 10b, so that the filler 220w fills the gap between the rotation restricting portion 220s and the bolt head 10b. The rotation restricting portion 220s can also be brought into surface contact with the bolt head 10b with certainty. As a result, the battery terminal 201 can suppress deformation of the battery post 51 in the axial direction more reliably.

Third Embodiment
FIG. 7 is a schematic cross-sectional view showing a schematic configuration of a battery terminal according to a third embodiment. FIG. 8 is a schematic cross-sectional view showing 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 the battery terminal has a pressing portion.

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

  The battery terminal 301 described above can securely fix and unify the holding plate 20c, the holding plate 20d, and the stud bolt 10 with each other in the axial direction of the battery post 51 in the bolt holding portion 22. The rigidity along the direction can be improved, so that deformation in 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 has the pressing portion 340 that presses the bolt head 10b toward the rotation restricting portion 20s. Therefore, in the battery terminal 301, the rotation restricting portion 20s and the bolt head 10b can be more reliably surface-contacted by the pressing portion 340 pressing the bolt head 10b toward the rotation restricting portion 20s. As a result, since the battery terminal 301 can fix and integrate the holding plate 20c, the holding plate 20d, and the stud bolt 10 more reliably to each other, deformation of the battery post 51 in the axial direction is achieved. Can be suppressed more reliably.

  Furthermore, according to the battery terminal 301 described above, the pressing portion 340 is configured to include the plate spring portion 320 q that biases the bolt head 10 b toward the rotation restricting portion 20 s. Therefore, the battery terminal 301 presses the bolt head portion 10b toward the rotation restricting portion 20s by the biasing force of the plate spring portion 320q to ensure surface contact between the turnback piece 20u of the rotation restricting portion 20s and the bolt head 10b. Can.

  In addition, the battery terminal 301 is combined with the folded back piece 20u formed as a deformation contact piece, and by providing the pressing portion 340, a structure is realized in which the rotation restricting portion 20s and the bolt head 10b are more reliably in surface contact. You may

  Further, the battery terminal 301 may have the folded piece 20u constituting the rotation restricting portion 20s as a divided structure, and the folded piece 20u of the divided structure may be in surface contact with the bolt head 10b.

  In a battery terminal 301A according to a modification shown in FIG. 8, a rotation restricting portion 320sA includes two folded pieces 320uA. As in the case of the above-described folded piece 20u, the two folded pieces 320uA are formed by notching a part of the holding plate portion 20d (see FIG. 4 etc.) to form a notch 20t (see FIG. 4 etc.) It is formed by folding back the portion to the holding plate portion 20c. Here, the folded pieces 320 uA are formed such that the folded ridge lines are inclined in opposite directions with respect to the short side direction. Then, the two folded pieces 320 uA are in surface contact with the end face of one side of the bolt head 10 b formed in a substantially hexagonal shape, respectively. That is, here, the two folded pieces 320uA are arranged in a substantially C shape (a shape in which an obtuse angle portion is formed), and surface contact with the end surfaces of two adjacent sides of the end surface of the bolt head 10b. Do. The pressing portion 340A of the battery terminal 301A includes a plate spring portion 320qA as an elastic portion that urges the bolt head 10b toward the rotation restricting portion 320sA. The leaf spring portion 320 qA is formed to abut on the end faces of two adjacent sides of the end faces of the bolt head 10 b formed in a substantially hexagonal shape. Each plate spring portion 320qA is formed at a position facing the respective turn-back pieces 320uA that constitute the rotation restricting portion 320sA with the bolt head portion 10b interposed therebetween. Each plate spring portion 320qA abuts on the end face of the bolt head 10b, and presses the bolt head 10b to the rotation restricting portion 320sA side by urging the bolt head 10b to the folded-back piece 320uA side. As a result, the battery terminal 301 presses the bolt head 10b toward the rotation restricting portion 320sA by the biasing force of the two plate spring portions 320qA, whereby the two folded pieces 320uA of the 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 C shape (type in which an obtuse angle portion is formed).

Fourth Embodiment
FIG. 9 is a rear view showing a schematic configuration of a battery terminal according to a fourth embodiment. FIG. 10 is a partial cross-sectional view taken along line B-B shown in FIG. The battery terminal according to the fourth embodiment differs from the third embodiment in the configuration of the pressing portion.

  In the battery terminal 401 according to the present embodiment shown in FIGS. 9 and 10, the bolt holding portion 22 has a pressing portion 440. The pressing portion 440 presses the bolt head portion 10 b of the stud bolt 10 held by the bolt holding portion 22 toward the rotation restricting portion 20 s. The pressing portion 440 is a portion for holding the bolt head portion 10b in the bolt holding portion 22 and is a portion facing the rotation restricting portion 20s with the bolt head portion 10b interposed therebetween. Here, each folded portion 20q to the bolt head portion 10b side The projection 420x is configured to include the projection 420x. Each protrusion 420x is formed so as to protrude from the surface facing the end face of the bolt head 10b in each folded portion 20q toward the end face of the bolt head 10b. Each protrusion 420x is made of, for example, an emboss or a bead. Here, each protrusion 420 x is illustrated as extending in the axial direction, but is not limited thereto. Each protrusion 420x abuts on the end face of the bolt head 10b, for example, when each folded portion 20q is bent, and presses the bolt head 10b toward the folded piece 20u, that is, the bolt head The portion 10b is pressed toward the rotation restricting portion 20s.

  The battery terminal 401 described above can securely fix and integrate the holding plate 20c, the holding plate 20d, and the stud bolt 10 with each other, and the axial direction of the battery post 51 in the bolt holding portion 22 can be integrated. The rigidity along the direction can be improved, so that deformation in the axial direction of the battery post 51 can be suppressed.

  Furthermore, in the battery terminal 401 described above, the pressing portion 440 presses the bolt head portion 10b to the rotation regulating portion 20s side, so that the rotation regulating portion 20s and the bolt head portion 10b can be more reliably surface-contacted. it can. As a result, since the battery terminal 401 can fix and integrate the holding plate 20c, the holding plate 20d, and the stud bolt 10 more reliably to each other, the battery post 51 can be deformed along the axial direction. Can be suppressed more reliably.

  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 from the portion facing the rotation restricting portion 20s with the bolt head portion 10b interposed therebetween. It is comprised including the projection part 420x which protrudes to the bolt head 11b side. Therefore, the battery terminal 401 can press the bolt head 10b to the rotation restricting portion 20s side by the projection 420x, and can reliably bring the folded piece 20u of the rotation restricting portion 20s into surface 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 to this and may be, for example, a substantially rectangular shape or the like. The battery terminals 1, 201, 301, 301A, and 401 are formed into folded portions 20p, 20q, claws 20r, rotation restricting portions 20s, 220s, 320sA, etc. according to the shape of the bolt head 10b, and the rotation restricting portions 20s, It may be configured such that 220s, 320sA and the bolt head 10b are in surface contact with each other.

  In the above description, in the main body portion 20, the pair of annular portions 20a and 20b, the pair of holding plate portions 20c and 20d, and the bending connection portion 20e are integrated by press bending processing or the like of a conductive metal plate. Although explained as what is formed, it does not restrict to this. For example, the main body portion 20 does not include the bending connection portion 20e, and the upper divided body (the annular portion 20a, the holding plate portion 20c) and the lower divided body (the annular portion 20b, the holding plate portion 20d) in the axial direction It may have a two-layer split structure, and may have a configuration in which an upper split body and a lower split body separately configured are integrated.

  In the above description, the notch 20t is formed at the end of the holding plate 20d on the side of the annular portion 20b, and the folded piece 20u is formed by being folded back on the side of the holding plate 20c and on the side of the annular 20b. Although it has been described that the folded ridge line is formed along the short side direction, it is not limited thereto.

  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 fastening portion 30 is not limited to this type, and may be another type.

  Although the folded piece 20u described above is formed of a material softer than the stud bolt 10 including the bolt head 10b, and the folded piece 20u side is pressed and deformed by the bolt head 10b, the invention is not limited thereto. The stud bolt 10 may be formed of a material softer than the folded piece 20u, and the bolt head 10b 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 portion 20u, 320uA Folded pieces (deformed contact piece, backlash stuffing portion)
21 post fastening part 22 bolt holding part (connection member holding part)
51 battery post 52 connection terminal (connection partner member)
54 nut (fastening member)
220u Folded piece (rotation regulation main body)
220w Filling (Gata part)
320q, 320qA leaf spring (elastic part)
340, 340A, 440 pressing portion 420x protrusion

Claims (7)

A post fastening portion fastened to the battery post,
A connecting member holding portion connected to the post fastening portion and holding a connecting member provided with a base at one end of a shaft portion to which a connection counterpart member is connected,
The connecting member holding portion is formed with a through hole through which the shaft portion passes, and an upper plate held between the fastening member and the base between the fastening member to be fastened to the shaft portion and the upper plate; And a lower plate provided with a rotation restricting portion which is opposed to the upper plate and holds the base and abuts against the base and restricts the rotation of the connecting member about the shaft portion.
The rotation restricting portion includes a filler which is in surface contact with the base portion and is filled between the rotation restricting main body portion integrally formed with the lower plate and the base portion .
Battery terminal. The rotation restricting portion includes a backlash filling portion for closing a gap with the base portion.
The battery terminal according to claim 1. The rotation restricting portion includes a deformation contact piece that is pressed by the base to be deformed.
The battery terminal according to claim 1 or 2. The connection member holding portion has a pressing portion that presses the base toward the rotation restricting portion.
The battery terminal according to any one of claims 1 to 3. A post fastening portion fastened to the battery post,
A connecting member holding portion connected to the post fastening portion and holding a connecting member provided with a base at one end of a shaft portion to which a connection counterpart member is connected,
The connecting member holding portion is formed with a through hole through which the shaft portion passes, and an upper plate held between the fastening member and the base between the fastening member to be fastened to the shaft portion and the upper plate; And a lower plate provided with a rotation restricting portion which is opposed to the upper plate and holds the base and abuts against the base and restricts the rotation of the connecting member about the shaft portion.
The rotation restricting portion makes surface contact with the base,
The connection member holding portion has a pressing portion that presses the base toward the rotation restricting portion.
Bas Tteri terminal. The pressing portion includes an elastic portion that biases the base toward the rotation restricting portion.
The battery terminal according to claim 4 or claim 5 . The pressing portion is a portion that holds the base in the connection member holding portion, and includes a protrusion that protrudes toward the base from a portion that faces the rotation restricting portion across the base.
The battery terminal according to any one of claims 4 to 6 .

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