JP2017091620A - Battery terminal and wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a versatile battery terminal which is easy to be fixed to a battery post and is also adaptable to different post diameters, and a wiring harness.SOLUTION: A battery terminal comprises: a pedestal member 21 including an annular pedestal part 21a surrounding a battery post 31 and a cylindrical part 21b protruded upwards therefrom; a connection terminal 22 including a terminal part 22a which surrounds the battery post 31 while being supported by the annular pedestal part 21a inside of the cylindrical part 21b, and a cable connection part 22b integrated therewith; an elastic conductor member 23 including an annular conductor part 23a which is brought into contact with the terminal part 22a of the connection terminal 22 around the battery post 31, and a plurality of elastic conductor piece parts 23b protruding obliquely upwards therefrom to the battery post 31; and a pressing cover member 25 which is coupled with the cylindrical part 21b and brings the annular conductor part 23a into press-contact with the terminal part 22a of the connection terminal 22 while bringing the plurality of elastic conductor piece parts 23b into press-contact with the battery post 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a battery terminal and a wire harness, and more particularly to a battery terminal and a wire harness for a power supply circuit including the battery terminal.

  In order to connect the power line to the battery post, that is, the battery electrode post, many battery terminals are screwed with metal fittings than before, but since the screw holes for fixing the screws are sideways, The tightening workability was not good.

  Therefore, conventionally, for example, a screw post work that can be screwed in an oblique direction with respect to, for example, a battery post and a battery terminal (see, for example, Patent Document 1), or a screw tightening work from above with respect to a battery terminal has been made possible. The thing (for example, refer patent document 2) is proposed.

  In addition, a battery post that can be attached to and detached from the battery post in one axial direction (see, for example, Patent Document 3) has been proposed.

Japanese Utility Model Publication No. 06-054204 JP 09-35702 A JP 09-88922 A

  However, even the conventional wire harness that enables the screw tightening operation in the oblique direction with respect to the battery terminal has poor workability as compared with the screw tightening operation from above.

  Moreover, in the conventional wire harness which enabled the screw fastening operation | work from an upper direction, the screw fastening process was needed twice, and workability | operativity was bad in that respect.

  Furthermore, none of these conventional wire harnesses can be used to simply temporarily position the battery terminal at an arbitrary mounting position.

  On the other hand, the conventional wire harness that can be attached to and detached from the battery post with one touch in the axial direction not only has a very large number of parts, but can only be applied to a specific standard battery post diameter. If the diameters were different, another battery terminal would be required, and the cost would be inferior due to lack of versatility.

  The present invention solves such a conventional unsolved problem, is easy to fix the battery terminal to the battery post, and is excellent in versatility that can accommodate a plurality of different battery post diameters. An object is to provide a battery terminal and a wire harness.

  In order to achieve the above object, the battery terminal according to the present invention includes a base member having an annular pedestal portion that surrounds the battery post, a cylindrical portion that protrudes upward from the annular pedestal portion, and the annular portion inside the cylindrical portion. A terminal part surrounding the battery post while being supported by the pedestal part, a connection terminal having a cable connection part integrally coupled to the terminal part, and an annular conductor part contacting the terminal part of the connection terminal around the battery post An elastic conductor member having a plurality of elastic conductor pieces projecting obliquely upward from the annular conductor portion toward the outer peripheral surface of the battery post; and the elastic conductor engaging with the cylindrical portion of the pedestal member. A pressing force that presses the annular conductor portion of the elastic conductor member against the terminal portion of the connection terminal while pressing the plurality of elastic conductor pieces of the member against the battery post. Characterized by comprising a chromatography member.

  Therefore, in the battery terminal according to the present invention, it is possible to perform a connecting operation by screwing from above, and the battery post via the elastic conductor member for any of a plurality of types of battery posts having different outer diameters. And the connection terminal can be connected while being pressed with a predetermined contact pressure and contact area. In addition, it is possible to securely fix the battery terminal from the pressure contact posture of the elastic conductor member to the battery post, and it is also possible to easily temporarily fix, that is, temporarily position. Furthermore, a general round plate terminal etc. can be used suitably for a connection terminal. Therefore, the battery terminal can be easily fixed to the battery post, and the battery terminal is excellent in versatility that can cope with a plurality of different battery post diameters.

  In the battery terminal of the present invention, the annular pedestal portion of the pedestal member, the connection portion of the connection terminal, and the annular conductor portion of the elastic conductor member may each have an annular shape.

  A pressing ring interposed between the pressing cover member and the plurality of elastic conductor pieces of the elastic conductor member, wherein the annular conductor portion of the elastic conductor member is movably held by the pressing cover member; In the state, the pressing ring may be held between the elastic conductor member and the pressing cover member.

  The wire harness according to the present invention includes any one of the battery terminals described above and a power supply line connected to the connection terminal.

  Therefore, it is easy to fix the battery terminal to the battery post, and the wire harness with the battery terminal is excellent in versatility that can cope with a plurality of different battery post diameters.

  According to the present invention, it is possible to provide a battery terminal and a wire harness that are easy to fix the battery terminal to the battery post and have excellent versatility that can accommodate a plurality of different battery post diameters.

It is a perspective view which shows the subassembly state at the time of the assembly | attachment start of the battery terminal which concerns on one embodiment of this invention. It is front sectional drawing which shows the subassembly state at the time of the assembly | attachment start of the battery terminal which concerns on one embodiment of this invention. It is a disassembled perspective view of the battery terminal in the wire harness which concerns on one embodiment of this invention. It is an exploded front sectional view of the battery terminal concerning one embodiment of the present invention. It is a perspective view which shows the temporarily fixed state of the battery terminal which concerns on one embodiment of this invention. It is a perspective view which shows the state at the time of the assembly completion state of the battery terminal which concerns on one embodiment of this invention. It is front sectional drawing which shows the state at the time of the assembly completion state of the battery terminal which concerns on one embodiment of this invention. It is explanatory drawing that the battery terminal which concerns on one embodiment of this invention is applicable to the battery post of a different standard.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(One embodiment)
1 to 8 show an embodiment of a battery terminal and a wire harness according to the present invention. In this embodiment, the present invention is applied to a wire harness for a power supply circuit for connecting a power supply line to a battery for an automobile. The main part of a battery electrode post, that is, a connection terminal connected to the battery post Is exemplified as a plate terminal.

  First, the structure of the battery terminal and wire harness of this Embodiment is demonstrated.

  As shown in FIGS. 1 to 4, a wire harness 10 according to the present embodiment includes a wire harness body 11 (only one end is shown) having an insulation-coated power connection wire as a main part, and the wire harness. The battery terminal 12 includes a round plate terminal that is crimp-connected to one end of the main body 11.

  As shown in FIGS. 5 to 7, the wire harness body 11 is connected to a substantially cylindrical battery post 31 of the battery 30 via the battery terminal 12 on one end side, and is not shown on the other end side. It is connected to the power circuit and auxiliary equipment (part of the vehicle electrical equipment). The battery 30 is a storage battery of a predetermined standard that is mounted on an automobile.

  An electric wire for connecting a power source constituting the wire harness main body 11 (hereinafter referred to as a power supply line) includes, for example, a core wire portion 11a made of a plurality of strands such as annealed copper or aluminum alloy, and the core wire portion 11a substantially in the length direction. It is a covered electric wire having a covering material 11b for insulating covering over the entire area.

  As shown in FIGS. 3 and 4, the battery terminal 12 includes a pedestal member 21, a connection terminal 22, an elastic conductor member 23, a pressing ring 24, and a pressing cover into which the battery post 31 of the battery 30 can be inserted. A member 25 is used.

  The pedestal member 21 includes an annular plate-shaped annular pedestal portion 21a that surrounds the battery post 31 and a cylindrical portion 21b that protrudes upward from the annular pedestal portion 21a, and has a generally cylindrical shape with a bottom. ing. In addition, a center hole 21c through which the battery post 31 can be inserted is formed in the annular pedestal portion 21a of the pedestal member 21, and a part of the connection terminal 22 is formed in a cylindrical shape in the cylindrical portion 21b of the pedestal member 21. A concave notch 21d that penetrates into and out of the portion 21b and a coupling portion 21e that can be coupled to the pressing cover member 25 are formed.

  The coupling portion 21e of the pedestal member 21 is engaged with the coupling portion 25c of the pressing cover member 25 with irregularities in the radial direction, and is fastened by, for example, screw coupling. Therefore, the pedestal member 21 only needs to have rigidity sufficient for the connection, and may or may not be conductive.

  The connection terminal 22 is a connection terminal for power supply typified by a round plate terminal. The connection terminal 22 is housed inside the cylindrical portion 21b of the pedestal member 21 and is supported by the annular pedestal portion 21a. The cable connection portion 22b is crimped or welded to the core wire portion 11a of the wire harness main body 11, and the connection conductor portion 22c that integrally couples the terminal portion 22a and the cable connection portion 22b.

  The terminal portion 22a of the connection terminal 22 has, for example, an annular plate shape surrounding the battery post 31, and is formed by punching or bending a single conductor plate together with the cable connection portion 22b and the coupling conductor portion 22c. ing. The connection terminal 22 may have a resin barrel portion that is coupled to the wire harness body 11 from the outside of the covering material 11b.

  The elastic conductor member 23 is a ring-shaped member made of a conductive metal, for example, a copper metal, having a conductivity close to that of the connection terminal 22 and a higher elastic coefficient or spring property than the connection terminal 22, and the terminal portion 22 a of the connection terminal 22. The battery post 31 can be pressed with a predetermined contact pressure and contact area.

  The elastic conductor member 23 includes an annular conductor portion 23 a that contacts the terminal portion 22 a of the connection terminal 22 around the battery post 31, and the annular conductor portion 23 a from the annular conductor portion 23 a toward the outer peripheral surface 31 a of the battery post 31. And a plurality of elastic conductor pieces 23b projecting obliquely upward in FIG.

  The pressing ring 24 can be pressed so as to fasten the plurality of elastic conductor pieces 23b of the elastic conductor member 23 to the battery post 31 side at the lower end side inner peripheral portion 24a in FIG. 2, and the upper end surface portion in FIG. 24b has a low coefficient of friction that is slidable in the rotational direction with respect to the pressing cover member 25. That is, the pressing ring 24 transmits the downward pressing force in FIG. 2 from the pressing cover member 25 to the elastic conductor member 23, while the rotation from the pressing cover member 25 is blocked and is difficult to transmit to the elastic conductor member 23. It is configured as follows.

  The inner peripheral surface of the pressing ring 24 has a smaller inclination angle or a cylindrical surface than the inclination angle of the plurality of elastic conductor piece portions 23b with respect to the axis of the battery post 31 and the elastic conductor member 23, but the lower end side inner peripheral portion 24a. Only may be inclined or chamfered.

  The pressing cover member 25 is detachably coupled to the non-circular outer peripheral portion 25a that can be rotated by a tool or the like, the concave portion 25b that opens downward in FIG. 2, and the cylindrical portion 21b of the base member 21. A coupling portion 25c and a center hole 25d through which the battery post 31 passes are provided.

  The outer peripheral portion 25a of the pressing cover member 25 has a shape similar to, for example, the outer peripheral portion of a hexagon nut, and the concave portion 25b has a volume that can accommodate the elastic conductor member 23 and the pressing ring 24. Further, the coupling portion 25c of the pressing cover member 25 has a shape that is detachably coupled to the cylindrical portion 21b of the pedestal member 21 by engaging with the cylindrical portion 21b of the pedestal member 21 in a radial direction. For example, it is screwed to the cylindrical portion 21b of the base member 21.

  When the pressing cover member 25 is coupled to the cylindrical portion 21 b of the base member 21, the plurality of elastic conductor piece portions 23 b of the elastic conductor member 23 are pressed against the outer peripheral surface 31 a of the battery post 31 via the pressing ring 24. The annular conductor portion 23 a of the elastic conductor member 23 is brought into pressure contact with the terminal portion 22 a of the connection terminal 22.

  The pressing ring 24 and the pressing cover member 25 may have any rigidity as long as they have sufficient rigidity to withstand the pressing load and stress for pressing the elastic conductor member 23 to the battery post 31 and the connection terminal 22 as described above. It may or may not be present.

  Here, the annular pedestal portion 21a of the pedestal member 21, the terminal portion 22a of the connection terminal 22, and the annular conductor portion 23a of the elastic conductor member 23 are each in an annular shape, but may be non-circular.

  Further, in a state where the annular conductor portion 23 a of the elastic conductor member 23 is movably held inward by the inner side of the recess 25 b of the press cover member 25, the press ring 24 is connected to the elastic conductor member 23 and the press cover member 25. You may hold | maintain between and may interpose integrally so that elastic deformation is possible.

  Furthermore, the base member 21 and the connection member 22 can be integrated by, for example, pushing the coupling conductor portion 22c of the connection member 22 into both side walls of the notch 21d of the base member 21 and fitting them.

  Next, the operation will be described.

  In the wire harness 10 provided with the battery terminal 12 of the present embodiment configured as described above, it is possible to perform a coupling operation by screwing or the like from above.

  In addition, the battery terminal 12 can be reliably secured from the pressure contact posture of the plurality of elastic conductor pieces 23b of the elastic conductor member 23 with respect to the battery post 31.

  Moreover, as shown in FIG. 5, the pressing cover member 25 and the inner elastic conductor member 23 and the pressing ring 24 are positioned near the upper end of the battery post 31 so that they can be easily removed. Stopping, that is, temporary positioning is also possible.

  In addition, like the battery posts 31A, 31B, 31C, and 31D shown in FIG. 8, the standards of the battery posts 31 are different from each other, and the outer diameter and outer peripheral surface shape (for example, a cylindrical surface, a tapered surface, and a screw forming surface) are different. Even when different, the elastic conductor member 23 can change the inner diameter at the time of mounting of the plurality of elastic conductor pieces 23b according to the outer diameter, outer peripheral surface shape, and mounting position.

  Therefore, the connection terminal 22 is firmly connected to the battery posts 31 </ b> A to 31 </ b> D having different outer diameters via the elastic conductor member 23 in a pressure-contact state and ensuring a predetermined contact area. Can do.

  As described above, the battery terminal 12 of the present embodiment is easy to fix the battery terminal 12 to the battery post 31 and is excellent in versatility that can cope with a plurality of different battery post diameters.

  In the present embodiment, the annular pedestal 21 a of the pedestal member 21, the terminal 22 a of the connection terminal 22, and the annular conductor 23 a of the elastic conductor member 23 each have an annular shape. Subassembly in which the elastic conductor member 23 and the pressure ring 24 are incorporated in the inner side of the 25b, and the battery post 31 is passed through the base member 21 while the terminal portion 22a of the connection terminal 22 is housed in the base member 21, thereby facilitating the work. Can be done.

  In addition, when the annular conductor portion 23a of the elastic conductor member 23 is movably held by the pressing cover member 25, the pressing ring 24 is held between the elastic conductor member 23 and the pressing cover member 25. The battery terminal 12 having a five-point configuration as shown in FIGS. 3 and 4 can be configured to have a two-point configuration at the time of attachment, and handling and assembly can be improved.

  As described above, in the present embodiment, the battery terminal and the wire harness 10 that are easy to fix the battery terminal to the battery post 31 and are excellent in versatility that can handle a plurality of different battery post diameters are provided. be able to.

  In the above-described embodiment, the connecting portion 25c of the press cover member 25 is screwed to the cylindrical portion 21b of the base member 21. However, the connecting portion 25c of the press cover member 25 is A plurality of protrusions protruding toward the center of the recess 25b may be formed, and a plurality of hook-shaped grooves corresponding to the protrusions may be formed in the cylindrical part 21b of the base member 21.

  Further, a holding member for holding the annular conductor portion 23 a of the elastic conductor member 23 movably inside the concave portion 25 b of the press cover member 25 is provided as a separate product, and the press ring 24 is provided between the elastic conductor member 23 and the press cover member 25. You may make it hold | maintain. Depending on the shape of the terminal portion 22a of the connection terminal 22, the inner peripheral shape of the pedestal member 21 and the depth of the recess can be set, or the pressing ring 24 can be integrated with the pressing cover member 25. Furthermore, it is needless to say that a means for ensuring slippage in the rotational direction with respect to the annular conductor portion 23a of the elastic conductor member 23 may be added.

  As described above, the present invention can provide a battery terminal and a wire harness that are easy to fix the battery terminal to the battery post and have excellent versatility that can accommodate a plurality of different battery post diameters. Yes, it is useful for battery harnesses and general wire harnesses for power supply circuits including the battery terminals.

10 Wire harness 11 Wire harness body (electric wire for power supply connection)
11a Core wire part 11b Cover material 12 Battery terminal 21 Base member 21a Annular base part 21b Cylindrical part 21c Center hole 21d Notch 21e Coupling part (concave engagement part)
22 connecting terminal 22a terminal portion 22b cable connecting portion 22c coupling conductor portion 23 elastic conductor member 23a annular conductor portion 23b elastic conductor piece portion 24 pressing ring 24a lower end side inner peripheral portion 24b upper end surface portion 25 pressing cover member 25a outer peripheral portion 25b concave portion 25c Coupling part (concave engagement part)
30 battery 31, 31A, 31B, 31C, 31D battery post 31a outer peripheral surface

Claims (4)

A pedestal member having an annular pedestal that surrounds the battery post and a cylindrical part that protrudes upward from the annular pedestal;
A connection terminal having a terminal part surrounding the battery post while being supported by the annular pedestal part inside the cylindrical part, and a cable connection part integrally coupled to the terminal part;
An elastic conductor member having an annular conductor portion that contacts the terminal portion of the connection terminal around the battery post, and a plurality of elastic conductor pieces protruding obliquely upward from the annular conductor portion toward the outer peripheral surface of the battery post When,
The cylindrical conductor of the pedestal member is concavo-convexly engaged and the annular conductor portion of the elastic conductor member is connected to the terminal of the connection terminal while the plurality of elastic conductor pieces of the elastic conductor member are pressed against the battery post. A battery terminal comprising: a pressing cover member that is pressed against the portion.   2. The battery terminal according to claim 1, wherein the annular pedestal portion of the pedestal member, the connection portion of the connection terminal, and the annular conductor portion of the elastic conductor member each have an annular shape. A pressing ring interposed between the pressing cover member and the plurality of elastic conductor pieces of the elastic conductor member;
The press ring is held between the elastic conductor member and the press cover member in a state where the annular conductor portion of the elastic conductor member is movably held by the press cover member. The battery terminal according to 1 or 2.   The wire harness provided with the battery terminal of Claim 1 or Claim 2, and the power wire connected to the said connection terminal.

Images