JP5560697B2 - Battery terminal - Google Patents

Description

  The present invention relates to a battery terminal.

Conventionally, what was described in patent document 1 is known as an example of the battery terminal used in order to connect an electric wire to the battery post which is an electrode of a battery.
This battery terminal includes an annular post holding portion that fits into a battery post of a battery mounted in an engine room of a vehicle, a fastening portion for fastening the post holding portion, and a terminal on the electric wire side. It is comprised from the electric wire connection part made to connect. The tightening portion extends from both ends of the post holding portion so as to be tightened by a post tightening bolt and a nut.

  The wire connection part is formed continuously on the opposite side of the post-clamping part and the stud bolt is provided so as to protrude upward, and the axis of the stud bolt is parallel to the axis of the battery post. It has become. An electric wire side terminal is inserted into the stud bolt, and a nut is inserted from above the terminal bolt and fixed by tightening.

  The battery post is positioned on the upper surface of the battery and has a substantially truncated cone shape having a tapered outer peripheral surface with a diameter gradually decreasing from the upper surface toward the upper end side. By fitting the post holding part into the battery post from above and fastening the bolt of the fastening part, the post holding part can be fixed in a state of being reduced in diameter and in close contact with the outer peripheral surface of the battery post.

  By the way, in order to attach this battery terminal, first, the post holding part is externally fitted to the battery post, the post fastening bolt is tightened and fixed to the battery post, and the electric wire side terminal is attached to the stud bolt of the electric wire connecting part. Fit and tighten the nut to the stud bolt to fix the wire side terminal.

JP 2006-338999 A

  In the conventional battery terminal as described above, when the wire-side terminal is fastened to the stud bolt of the wire connecting portion, a rotational torque acts on the stud bolt by a frictional force with the nut. However, since this rotational torque has conventionally been in a relationship in which the axes of the stud bolt and the battery post are substantially parallel to each other, the rotational torque acts as a force in a direction substantially perpendicular to the axis of the battery post with the stud bolt as the center. As a result, a large force acts on the battery post in such a direction as to try to knock it down, and the battery post may be damaged when an excessive torque is applied.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to provide a battery terminal that can reduce the possibility of damage to a battery post due to an external force applied when an electric wire is connected to an electric wire connecting portion. .

The present invention comprises a terminal body having a cylindrical post holding part that fits externally on a battery post, and a bottom plate part integrally extending from the post holding part, and the terminal body is formed separately. A terminal fixing bolt for inserting the wire side terminal connected to the terminal portion of the counterpart electric wire and fixing with the nut, and a bolt holding portion for holding the terminal fixing bolt with a fastening surface of the nut. An electric wire connecting portion; a rotation connecting mechanism that rotatably connects the electric wire connecting portion to the bottom plate portion of the terminal body; and the electric wire connecting portion and the terminal while allowing the electric wire connecting portion to rotate. An electrical connection member that electrically connects the main body, and a substrate portion provided at an end portion of the terminal fixing bolt among the bolt holding portions of the wire connection portion by the rotation coupling mechanism; Above Especially the portion sandwiched between the Tsu bets is pivotally connected to the bottom plate with the features.

According to such a structure, the external force applied to the electric wire connecting portion is configured separately from the electric wire connecting portion and the terminal main body including the post holding portion and is connected to each other by the rotary connecting mechanism. Can be prevented from being transmitted to the post holding portion. That is, conventionally, since the post holding portion and the electric wire connecting portion are integrally formed, an external force applied to the electric wire connecting portion is directly transmitted through a portion connected to the post holding portion. However, according to the above structure, the terminal body including the post holding portion is not interlocked with the movement of the electric wire connecting portion by the rotation connecting mechanism, and thus the external force applied to the electric wire connecting portion is difficult to be transmitted. Therefore, the possibility that the external force applied to the wire connecting portion is transmitted to the post holding portion and the battery post is damaged can be reduced. In addition, since it is assumed that the largest external force is applied to the wire connection portion when the wire-side terminal is fastened to the terminal fixing bolt with the nut, the present invention is particularly useful for the battery terminal having such a configuration.

  Further, the electrical connection member maintains electrical connection while allowing movement between the electric wire connection portion and the terminal main body that are rotatably coupled by the rotational coupling mechanism. Thereby, even if the electric wire connecting portion and the terminal main body including the post holding portion are configured separately, the function as a battery terminal for electrically connecting the electric wire and the battery post can be achieved.

  The electrical connection member includes a flexible electric wire, and one end of the electric wire is caulked and fixed to a pair of caulking pieces provided on the bottom plate portion, and the other end is a pair of caulking provided to the electric wire connection portion. It may be crimped to the piece. According to such a structure, the electric connection member is a flexible electric wire, so that the degree of freedom between the electric wire connecting portion and the terminal main body that are rotatably connected by the rotation connecting mechanism is predetermined. Can be tolerated in range. Moreover, the electric conductivity between both members can be ensured reliably by caulking and fixing one end of the electric wire constituting the electric connecting member to the bottom plate portion and the other end to the electric wire connecting portion.

  The wire connecting portion is disposed at a position overlapping the bottom plate portion, and a connecting tube portion is integrally provided on the bottom plate portion at a position overlapping with the wire connecting portion, and the electric connecting member is connected to the connecting tube. The rotation connecting mechanism is configured by the louver terminal and the connecting shaft by being connected to the louver terminal by a connecting shaft projecting from the electric wire connecting portion. May be.

  According to such a structure, the louver terminal functions as an electrical connecting member, and the connecting shaft can be held immovably in the axial direction while allowing the electric wire connecting portion to rotate around the connecting shaft. As a result, the external force applied when the mating wire is connected to the wire connection part is not transmitted to the terminal body by being connected via the louver terminal, so that the battery post is damaged by transmitting the external force. Can be prevented. Further, since the louver terminal serves as both the electrical connecting member and the rotation coupling mechanism, the structure of the entire battery terminal can be simplified. Thereby, since the number of parts can be reduced, it can contribute to material cost reduction.

  The electrical connection member is configured by an elastic connection piece integrally provided so as to overlap the bottom plate portion of the battery terminal, and is inserted between the elastic connection piece and the bottom plate portion in the electric wire connection portion. The tab part may be formed integrally. According to such a structure, the tab body is inserted between the elastic connecting piece as the electric connecting member and the bottom plate portion, so that the terminal body and the electric wire connecting portion are electrically connected and can be rotated. Connected to Thereby, the rotation by the rotation connection mechanism which connects between the members is naturally permitted. In addition, by providing the elastic connection piece integrally so as to overlap the bottom plate portion, it is not necessary to secure a new space as an electrical connection member, and the size of the entire battery terminal can be suppressed to the same level as in the past.

  Each of the electric wire connecting portion and the bottom plate portion is provided with a spring receiving portion, and a coil spring that is elastically deformed according to a torque acting on the electric wire connecting portion when the nut is tightened is provided between the spring receiving portions. It may be. According to such a structure, the coil spring provided between the wire connection portion and the spring receiving portion of the bottom plate portion is elastically deformed according to the torque acting on the wire connection portion. That is, when the electric wire connection portion is rotated with respect to the bottom plate portion by the torque acting on the electric wire connection portion, the coil spring is elastically deformed, so that a part of the external force generated by the torque can be absorbed. As a result, it is possible to prevent the external force generated in the electric connecting member that connects the electric wire connecting portion and the bottom plate portion from being transmitted, and the electric connecting member itself is damaged by being pulled, or through the electric connecting member. This prevents external force from being transmitted to the terminal body. In addition, after the wire connection portion rotates with respect to the bottom plate portion due to the torque acting on the wire connection portion, the position of the wire connection portion can be returned to the state before the torque acts by the elastic restoring force of the coil spring. .

  The coil springs may be arranged in pairs on both sides in the width direction so as to extend along the extending direction of the bottom plate portion. According to such a structure, when the electric wire connection portion is rotated with respect to the bottom plate portion of the terminal body due to the torque generated in the electric wire connection portion, the position of the electric wire connection portion is more reliably determined by the pair of coil springs. Can be returned.

  ADVANTAGE OF THE INVENTION According to this invention, the battery terminal which can reduce the possibility that the battery post is damaged by an external force applied when the electric wire is connected to the electric wire connecting portion can be provided.

The perspective view of the battery terminal which concerns on Embodiment 1 of this invention. Longitudinal side view of battery terminal Short side view of battery terminal Top view of battery terminal Partial sectional view of the battery terminal The perspective view of the battery terminal which concerns on the modification 1 of Embodiment 1. FIG. Top view of battery terminal Top view of the battery terminal with the wire connection member rotated relative to the terminal body The perspective view of the battery terminal which concerns on the modification 2 of Embodiment 1. FIG. Top view of battery terminal The perspective view of the battery terminal which concerns on the modification 3 of Embodiment 1. FIG. Longitudinal side view of battery terminal Top view of battery terminal Top view of the battery terminal with the wire connection member rotated relative to the terminal body Longitudinal side view of a battery terminal according to Embodiment 2 Short side view of battery terminal Top view of battery terminal Partial sectional view of the battery terminal Partial perspective view of louver terminal and wire connecting member Longitudinal side view of a battery terminal according to Embodiment 3 Partial sectional view of the battery terminal Top view of the battery terminal with the wire connection member rotated relative to the terminal body

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
The battery terminal 10 in the present embodiment is connected to a terminal main body 11 having a post holding portion 12 that is externally fitted to a battery post 50 that is an electrode of a battery (not shown) mounted on a vehicle such as an automobile, and an in-vehicle electrical component. It is comprised from the electric wire connection member 20 which connects the electric wire side terminal which is not shown in figure, and the case where the electric wire side terminal which is not shown in figure is electrically connected to the battery post 50 via the battery terminal 10 is illustrated.

  The battery post 50 is a lead electrode projecting on the upper surface of a battery body (not shown) having a substantially rectangular parallelepiped shape, having a circular cross-sectional shape and having a tapered shape with a tapered taper whose upper end side is gradually reduced in diameter. It has become.

  The terminal body 11 is made of metal, and includes a C-shaped post holding portion 12 that can be fitted to the battery post 50 from the outer periphery, as shown in FIG. Tapered. The open end portion of the post holding portion 12 extends opposite to each other and is provided with a tightening portion 13. The tightening portion 13 includes a bolt insertion hole 14 formed in the extending piece portion, a post tightening bolt 15 inserted into the bolt insertion hole 14, and a nut 16 screwed into the post tightening bolt 15. Yes. By reducing the diameter of the post holding portion 12 by the tightening portion 13, the post holding portion 12 can be fastened to the outer periphery of the battery post 50.

  A flat bottom plate portion 17 extends in a direction opposite to the tightening portion 13 from the bottom portion of the post holding portion 12 opposite to the tightening portion 13. The width dimension of the bottom plate portion 17 is substantially the same as the outer diameter of the post holding portion 12, and the extending length is a length that overlaps the bottom surface of the wire connecting portion 20. Near the post holding portion 12 of the bottom plate portion 17, a pair of holding portion side crimping pieces 17 </ b> A for caulking and fixing one end of an electric wire 33 described later is provided. Further, a body-side holding hole 17 </ b> B through which a connecting member 30 described later can be inserted is formed at a position that overlaps the electric wire connecting portion 20 of the bottom plate portion 17 and is coaxial with a stud bolt 22 described later. The extended end portion of the bottom plate portion 17 is folded back so as to cover the lower portion of the connecting member 30 held in the main body side holding hole 17B.

  Now, the electric wire connection member 20 to which the electric wire side terminal which is not illustrated is connected is metal, Comprising: It is comprised separately from the terminal main body 11. FIG. The electric wire connecting member 20 includes a substantially box-shaped bolt holding portion 21 and a stud bolt 22 corresponding to a terminal fixing bolt held by the bolt holding portion 21. A stud bolt insertion hole 21 </ b> A is formed in the bolt holding portion 21. The stud bolt 22 is inserted into the stud bolt insertion hole 21 </ b> A, and the rectangular board portion 22 </ b> A provided at the lower end portion of the stud bolt 22 is covered. This is a bent form. Note that the bottom wall of the bolt holding portion 21 protrudes from the bolt holding portion 21 toward the post holding portion 12 side, and a pair of bolt sides for caulking and fixing the other end of the electric wire 33 to the protruding end portion. A caulking piece 21B is provided. Furthermore, the electric wire side holding hole 21C which can insert the connection member 30 mentioned later is formed in the position which becomes coaxial with the stud bolt 22 among the bottom walls of the bolt holding part 21 (refer FIG. 5).

  The terminal body 11 and the wire connecting member 20 are connected via a connecting member 30. The connecting member 30 passes through the electric wire side holding hole 21 </ b> C formed in the bolt holding portion 21 of the electric wire connecting member 20 and the main body side holding hole 17 </ b> B formed in the bottom plate portion 17 of the terminal main body 11. Both end portions of the connecting member 30 are provided with large-diameter portions 31 that are larger in diameter than the holding holes 17B and 21C and cannot be pulled out. Further, the outer diameter of the shaft portion 32 of the connecting member 30 is smaller than the inner diameter of each holding hole 17B, 21C. For this reason, the connecting member 30 is prevented from coming off in the axial direction, but is allowed to rotate in the holding holes 17B and 21C.

  Now, the terminal body 11 and the electric wire connecting member 20 are also connected by an electric wire 33 corresponding to an electric connecting member. Specifically, the electric wire 33 having a plurality of core wires is stripped at both ends, one end of which is caulked and fixed to the holding portion side caulking piece 17A of the bottom plate portion 17, and the other end is caulked on the bolt side of the bolt holding portion 21. It is structurally and electrically connected by caulking and fixing to the piece 21B. In addition, the full length of this electric wire 33 is set longer than the distance from the holding part side crimping piece 17A to the bolt side crimping piece 21B, and the extra length is absorbed because the core wire bends.

  The present embodiment has the above-described structure, and the assembly work of the battery terminal 10 will be described next. First, the post holding part 12 is put on the battery post 50, and the nut 16 is fastened to the post fastening bolt 15 inserted through the bolt insertion hole 14. Thereby, the post holding part 12 is reduced in diameter toward the axial center of the battery post 50 and fixed to the battery post 50 in an externally fitted state.

  Next, an unillustrated wire-side terminal insertion hole is inserted into a stud bolt 22 held in a protruding state from the bolt holding portion 21, and a not-illustrated nut is tightened from above to insert the unillustrated wire-side terminal into the battery. Attach to terminal 10. At this time, it is desirable to keep the bolt holding part 21 in a non-rotating state by using, for example, a tool such as a plier or a jig dedicated to the rotation prevention.

  By the way, when a nut (not shown) is fastened to the stud bolt 22, rotational torque is applied to the stud bolt 22 side in the tightening direction a shown in FIG. For example, in the case where the conventional post holding portion and the wire connecting portion are integrally formed, the post holding portion may be detached from the battery post 50 by transmitting this rotational torque to the post holding portion. Or the battery post 50 itself may be damaged. However, in the present embodiment, the wire connecting member 20 and the terminal main body 11 including the post holding portion 12 are formed separately and are connected to each other by the connecting member 30 so as to be rotatable. Accordingly, if the wire side terminal is nut-fastened to the stud bolt 22 in a state where the bolt holding portion 21 is fixed using a jig or the like, transmission of the rotational torque applied to the stud bolt 22 to the post holding portion 12 is suppressed. Therefore, problems such as damage to the battery post 50 can be prevented. Moreover, even after an electric wire is connected to the electric wire connecting member 20, there is a possibility that an external force is applied to the electric wire connecting member 20 through the electric wire. Even in such a case, it is possible to prevent the external force from reaching the post holding portion 12 because only the wire connecting member 20 rotates and the post holding portion 12 does not interlock with the movement.

  In addition, the electrical connection between the terminal main body 11 including the post holding portion 12 and the electric wire connecting member 20 to which the electric wire side terminal is connected is different from the connecting plate 30 that structurally connects the two members and the bottom plate portion 17. Since it is secured by the electric wire 33 crimped to the bolt holding portion 21, the function as the battery terminal 10 can be performed without any problem.

  As mentioned above, although Embodiment 1 of this invention was shown, this invention is not restricted to the said embodiment, For example, embodiment of the following modifications can also be included. In the following modifications, members similar to those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and illustration and description thereof may be omitted.

[Modification 1 of Embodiment 1]
A first modification of the first embodiment will be described with reference to FIGS. Here, in addition to the configuration of the first embodiment, a position return mechanism 60 is provided that returns the rotated wire connection member 20 to the original position with respect to the terminal body 11 after the wire side terminal is fixed to the wire connection member 20. Is different.

  As shown in FIGS. 6 and 7, the position return mechanism 60 is configured by connecting the bottom plate portion 17 and the wire connecting member 20 with a tension spring 63. A first spring receiving portion 61 protrudes from the side portion closer to the wire connecting member 20 than the position where the holding portion side crimping piece 17A of the bottom plate portion 17 is provided toward the outer periphery. The first spring receiving portion 61 is formed with a first spring insertion hole 61 </ b> A for locking a hook provided at one end of the tension spring 63. In addition, a second spring receiving portion 62 projects from the bottom portion of the wire connecting member 20 on the same side as the first spring receiving portion 61 from the bottom portion on the stud bolt 22 side of the bolt side caulking piece 21B. A second spring insertion hole 62 </ b> A is provided. Both spring receiving portions 61 and 62 are located on the back side of FIG. 6 and can be assembled by hooking hooks at both ends of the tension spring 63 to the respective spring insertion holes 61A and 62A to be locked.

  As shown in FIG. 8, when an external force that turns the wire connecting member 20 in the b direction with respect to the terminal body 11 is applied to the stud bolt 22 by fastening the wire side terminal to the nut, the tension spring 63 is connected to the wire. The connection member 20 is stretched by being pulled by the second spring receiving portion 62. When the nut fastening or the like is completed and no external force is applied to rotate in the b direction, the wire connecting member 20 is urged in the c direction opposite to the b direction by the tensile force of the tension spring 63. Thereby, the position of the electric wire connection member 20 can be returned to the state before external force is applied.

  As described above, by providing the position return mechanism 60 in addition to the configuration of the first embodiment, the tensile spring 63 is elastically deformed according to the direction of the external force acting on the wire connecting member 20, so that one of the external forces can be reduced. The portion can be absorbed by the tension spring 63. Thereby, it can be set as the structure which is hard to apply external force to the electric wire 33 which is an electrical connection member distribute | arranged in parallel with the position return mechanism 60, external force is applied to this electric wire 33, and there is a possibility that it may be damaged by being pulled. Can be reduced. In addition, after the wire connection member 20 is rotated by an external force, the wire connection member 20 can be automatically returned to the original position before the rotation by the elastic restoring force of the tension spring 63. As a result, in a state where no external force is applied to the wire connecting member 20, the terminal body 11 and the wire connecting member 20 are held at fixed positions, and the wire connecting member 20 is unnecessarily rotated with respect to the terminal body 11. It also makes it possible to prevent abnormal noise generated by moving.

[Modification 2 of Embodiment 1]
A second modification of the first embodiment will be described with reference to FIGS. 9 and 10. Here, the position of the position return mechanism 60 is different from that of the second modification of the first embodiment, and the difference is that a compression spring 66 is used instead of a tension spring.

  The position return mechanism 60 is provided in front of the electric wire 33 in FIG. A third spring receiving portion 64 protrudes toward the outer periphery from the side portion closer to the wire connecting member 20 than the position where the holding portion side crimping piece 17A of the bottom plate portion 17 is provided. Further, a fourth spring receiving portion 65 projects from the bottom portion of the wire connecting member 20 on the stud bolt 22 side with respect to the bolt side caulking piece 21B on the side portion on the same side as the third spring receiving portion 64. Each spring receiving portion 64, 65 is formed with a third spring insertion hole 64A and a fourth spring insertion hole 65A for hooking and locking hooks at both ends of the compression spring 66, respectively.

As shown in FIG. 10, when the electric wire connecting member 20 rotates in the b direction with respect to the terminal body 11 by an external force generated by fastening the electric wire side terminal to the stud bolt 22 or the like, the compression spring 66 is It will be in the state compressed by being pushed by the post holding part 12 side. When the nut fastening is completed and the wire connecting member 20 is no longer applied with the force to rotate in the b direction, the compression spring 66 that has been compressed and deformed is elastically restored to be urged in the c direction opposite to the b direction. . Thereby, even if the electric wire connection member 20 rotates by nut fastening etc., it can maintain the state before rotating in the state where external force is not applied.
Thus, even if the position return mechanism 60 is provided with the compression spring 66, the same effect as that of the first modification of the first embodiment can be obtained.

[Modification 3 of Embodiment 1]
A third modification of the first embodiment will be described with reference to FIGS. 11 to 14. Here, the position return mechanism 60 has a form in which the position return mechanism 60 of Modification 1 of Embodiment 1 and the position return mechanism 60 of Modification 2 of Embodiment 1 are combined.

  The position return mechanism 60 in the third modification is provided with a pair of spring receiving portions on both sides in the width direction of the electric wire 33, and a tension spring 63 is locked on the back side of FIG. 11 and a compression spring 66 is locked on the front side. Has been. Specifically, the first spring receiving portion 61 is located on the back side of FIG. 11 on the side closer to the wire connecting member 20 than the position where the holding portion side crimping piece 17A of the bottom plate portion 17 is provided. A third spring receiving portion 64 is provided. Further, from the bottom of the wire connecting member 20 on the stud bolt 22 side with respect to the bolt side crimping piece 21B, the second spring receiving portion 64 is on the same side as the first spring receiving portion 61, and on the same side as the third spring receiving portion 64. A fourth spring receiving portion 65 is provided. The tension spring 63 is locked in the spring insertion holes 61A and 62A of the first spring receiving portion 61 and the second spring receiving portion 62, and the spring insertion holes 64A and 64A of the third spring receiving portion 63 and the fourth spring receiving portion 64 are retained. A compression spring 66 is locked to 65A.

  As shown in FIG. 14, when the electric wire connecting member 20 is rotated in the direction b by applying a rotational torque or the like, the tension spring 63 is pulled and extended by the second spring receiving portion 62. Further, the compression spring 66 is pressed and compressed toward the post holding portion 12 side. When the external force that causes the wire connecting member 20 to rotate in the b direction is not applied, the wire connecting member 20 is urged in the c direction by the tensile force of the tension spring 63 and the force of the compression spring 66 attempting to return elastically. The Thereby, the electric wire connection member 20 can return to the state before rotating by the external force by nut fastening etc. Thus, by providing the springs 63 and 66 for connecting the terminal main body 11 and the wire connecting member 20 on both sides in the width direction of the electric wire 33 along the bottom plate portion 17, this position return mechanism 60 is provided on one side. The force for returning the rotated wire connecting member 20 to the original position can be increased.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
This embodiment is different from the first embodiment in that the rotation coupling mechanism and the electrical connection member are configured by the louver terminals 40. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.

  As shown in FIGS. 15 and 16, a louver, which will be described later, is provided on the surface of the post holding portion 12 that overlaps with the wire connecting member 20 of the bottom plate portion 17 extending from the bottom portion on the opposite side of the fastening portion 13. A connecting tube portion 18 that houses the terminal 40 and passes through a connecting shaft 23 of the wire connecting member 20 described later is provided upright. As shown in FIG. 18, the connecting cylinder portion 18 is formed through the bottom plate portion 17.

  The electric wire connecting member 20 is opposite to the stud bolt 22 from the substantially box-shaped bolt holding portion 21, the stud bolt 22 held by the bolt holding portion 21, and the rectangular substrate portion 22 </ b> A provided at the lower end portion of the stud bolt 22. And a connecting shaft 23 protruding toward the side. The bolt holding part 21 is fixed to the stud bolt 22 and the connecting shaft 23 by holding the board part 22A so as to cover the board part 22A. Play a role. The connecting shaft 23 is disposed coaxially with the stud bolt 22 and is provided with a fitting curved portion 23A that is curved inward. The fitting curved portion 23A can be fitted to a louver terminal 40 described later.

  Now, the louver terminal 40 accommodated in the connecting cylinder part 18 is made of metal, and as shown in FIG. 19, a cylindrical shape in which a plurality of elastic band parts 42 are connected to a pair of ring parts 41 arranged on the same axis. I am doing. The elastic band portion 42 is curved inward in the axial intermediate portion. When the louver terminal 40 is accommodated in the connecting tube portion 18, the ring portion 41 is in close contact with the inner peripheral wall of the connecting tube portion 18 and is held immovable in the axial direction.

  The connecting shaft 23 of the wire connecting member 20 is inserted into the connecting tube portion 18 in which the louver terminal 40 is accommodated. Then, the fitting curved portion 23A of the connecting shaft 23 is fitted to the elastic band portion 42 of the louver terminal 40, so that the louver terminal 40 cannot allow the connecting shaft 23 to be pulled out while allowing the connecting shaft 23 to rotate. It will be in the state kept in.

  According to the configuration as described above, the connecting shaft 23 protruding from the wire connecting member 20 is fitted to the louver terminal 40 so as to be rotatable, so that the wire connecting member 20 and the terminal body 11 are rotated. It can be movably connected. Accordingly, if the wire side terminal is nut-fastened to the stud bolt 22 in a state where the bolt holding portion 21 is fixed using a jig or the like, transmission of the rotational torque applied to the stud bolt 22 to the post holding portion 12 is suppressed. Therefore, problems such as damage to the battery post 50 can be prevented. In addition, since the louver terminal 40 functions as an electrical connection member and a rotation coupling mechanism, the overall structure of the battery terminal 10 can be simplified. Thereby, since the number of parts which comprise the battery terminal 10 can be reduced, it can contribute to material cost reduction. Moreover, since there is no possibility that the electric wire 33 used as the electric connection member is affected by disconnection or the like due to the rotation of the electric wire connection member 20 with respect to the terminal body 11 as in the first embodiment, the rotation connection mechanism, the electric connection member, In this embodiment, the strength of the electrical connection member is high and the structure is excellent.

<Embodiment 3>
Next, a third embodiment of the present invention will be described with reference to FIGS.
The present embodiment is different from the first embodiment in the structure of the electrical connection member, and the terminal main body is formed by sandwiching the tab portion 24 provided in the wire connection member 20 between the elastic connection pieces 19A provided in the terminal main body 11. 11 and the electric wire connecting member 20 are different from each other. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.

  On the upper surface of the bottom plate portion 17 extending from the bottom portion of the post holding portion 12 in the direction opposite to the fastening portion 13, a tab portion 24 of the electric wire connecting member 20 described later is connected to the bottom plate portion 17. A clamping part 19 that can be clamped between the two is provided. The clamping part 19 has a shape in which a metal flat plate is folded back, and an elastic connection piece 19A that clamps a tab part 24 described later, and a side part in the width direction of the elastic connection piece 19A extend and are held by the bottom plate part 17. It is comprised from the cover part 19B. The folded end of the elastic connecting piece 19A is in contact with the bottom plate 17 side. A part of the cover portion 19B in the direction corresponding to the wire connecting member 20 side and the width direction both sides of the bottom plate portion 17 has a shape opened to the outside.

  On the other hand, a tab-like tab portion 24 extends from the bottom surface of the bolt holding portion 21 of the wire connecting member 20 toward the post holding portion 12 side. The tab body 24 is sandwiched between the elastic connecting piece 19 </ b> A and the bottom plate portion 17, whereby the terminal body 11 and the wire connecting member 20 are electrically connected. The wire connecting member 20 is separately connected to the terminal body 11 by a connecting member 30. When the wire connecting member 20 rotates about the connecting member 30 as an axis, the tab portion 24 is also a predetermined portion. Part of both sides in the width direction of the cover portion 19B is opened so that it can rotate within the range.

  As shown in FIG. 22, in a state where the bolt holding portion 21 is fixed using a jig or the like, the wire side terminal is fastened to the stud bolt 22 with the nut, the jig is removed, and the bolt holding portion 21 can be rotated again. When the nut continues to rotate on the stud bolt 22 due to the rotational inertia of the nut tightening tool or the like, the wire connecting member 20 rotates in the direction b and moves to the position indicated by the broken line, for example. At this time, since the wire connecting member 20 is rotatably connected to the terminal main body 11 by the connecting member 30, the terminal main body 11 is pulled and rotated even if the electric wire connecting member 20 rotates. Absent. Moreover, since the external force applied to the wire connecting member 20 is difficult to be transmitted to the terminal body 11 as in the above embodiment, the battery post 50 is damaged due to the external force applied to the post holding portion 12. Can be prevented. Further, the tab body 24 is sandwiched between the elastic connection piece 19 </ b> A and the bottom plate portion 17, whereby the terminal main body 11 and the wire connection member 20 are electrically connected. When the wire connecting member 20 is rotated with respect to the terminal body 11, the tab portion 24 is allowed to rotate in conjunction with it while being held between the elastic connecting pieces 19 </ b> A. In addition, by providing the elastic connecting piece 19A integrally so as to overlap the bottom plate portion 17, it is not necessary to provide a new space as an electric connecting member, and the size can be reduced to the same size as the conventional one.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (2) In Embodiment 1 described above, the electric wire 33 is used as the electrical connection member. However, the present invention is not limited to this, and the electrical connection member may be a coil spring, for example.

  (3) In Modification 1 of Embodiment 1 to Modification 3 of Embodiment 1 described above, the position return mechanism 60 is applied to the battery terminal 10 using the electrical connection member of Embodiment 1 as the electric wire 33. For example, the position return mechanism 60 is formed on the electrical connection member and the rotation coupling mechanism of the second embodiment that are the louver terminals 40 and the electrical connection member of the third embodiment is the elastic connection piece 19A. May be.

DESCRIPTION OF SYMBOLS 10 ... Battery terminal 11 ... Terminal main body 12 ... Post holding part 13 ... Fastening part 17 ... Bottom plate part 20 ... Electric wire connection member 21 ... Bolt holding part 22 ... Stud bolt 30 ... Connecting member 33 ... Electric wire 50 ... Battery post

Claims (6)

A terminal main body having a cylindrical post holding portion that is externally fitted to the battery post, and a bottom plate portion integrally extending from the post holding portion;
A terminal fixing bolt that is formed separately from the terminal body and has a fastening surface between the terminal fixing bolt and the nut that passes through the wire side terminal connected to the terminal portion of the counterpart electric wire and is fixed by the nut. A wire connecting part having a bolt holding part for holding the bolt ;
A rotation connecting mechanism for rotatably connecting the electric wire connecting portion to the bottom plate portion of the terminal body;
Provided with an electric connecting member electrically connecting the terminal body and the wire connecting portion while permitting rotation of the wire connecting portion,
Of the bolt holding portion of the electric wire connecting portion, the portion sandwiched between the base plate portion provided at the end portion of the terminal fixing bolt and the nut is rotated with respect to the bottom plate portion by the rotating connection mechanism. A battery terminal characterized by being connected . The electrical connection member includes a flexible electric wire, and one end of the electric wire is caulked and fixed to a pair of caulking pieces provided on the bottom plate portion, and the other end is a pair of caulking provided to the electric wire connection portion. The battery terminal according to claim 1, wherein the battery terminal is fixed by caulking. The wire connecting portion is disposed at a position overlapping the bottom plate portion, and a connecting tube portion is integrally provided on the bottom plate portion at a position overlapping with the wire connecting portion, and the electric connecting member is connected to the connecting tube. The rotation connecting mechanism is configured by the louver terminal and the connecting shaft by being connected to the louver terminal by a connecting shaft projecting from the electric wire connecting portion. The battery terminal according to claim 1, wherein the battery terminal is provided. The electrical connection member is configured by an elastic connection piece integrally provided so as to overlap the bottom plate portion of the battery terminal, and is inserted between the elastic connection piece and the bottom plate portion in the electric wire connection portion. The battery terminal according to claim 1, wherein the tab portion is integrally formed. Each of the electric wire connecting portion and the bottom plate portion is provided with a spring receiving portion, and a coil spring that is elastically deformed according to a torque acting on the electric wire connecting portion when the nut is tightened is provided between the spring receiving portions. The battery terminal according to claim 1, wherein: 6. The battery terminal according to claim 5 , wherein the coil springs are arranged in pairs on both sides in the width direction so as to extend along the extending direction of the bottom plate portion.

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