JP2006190576A - Battery terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery terminal for improved flexibility in connection of electric wirings while complication in management process and increase in cost are avoided. <P>SOLUTION: In a battery terminal 1, a terminal body 10 in which a clamping part 40 and a battery post connection part 30 are integrally provided is separately formed from am electric wire connection part 20. The connection part 30 is provided with a plurality of fittings 32, while the electric wire connection part 20 is provided with a hooking part capable of selectively hooking with the plurality of fittings 32. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a battery terminal used for connecting an electric wire to a battery post of a battery mounted on an automobile or the like.

Conventionally, the thing of patent document 1 is known as an example of a battery terminal. The battery terminal is for adding a negative electrode terminal to a battery mounted on the vehicle, and has an annular connection part that can be fitted on the negative electrode terminal of the battery, and extends from the connection part. A pair of projecting pieces formed to face each other and an additional negative electrode terminal formed in the same shape as the negative electrode terminal of the battery are provided. Then, the additional negative electrode terminal and the overhanging piece are integrally formed in a straight line with the connecting portion connected to the negative electrode terminal of the battery as the center. The extension negative electrode terminal is connected to the connection terminal of the body ground wire, while the projecting piece is connected to the connection terminal of the ground harness. Further, by tightening the projecting piece with a bolt and a nut, the connecting portion is reduced in diameter and is attached to the negative electrode terminal of the battery.
JP 2003-257410 A

  However, there are certain restrictions on the mounting direction of the battery terminal due to problems such as tightening workability of the connecting portion and interference with other parts. At this time, since the connection portion (the projecting piece, the negative electrode terminal) of the electric wire in the battery terminal is fixed to the connection portion, the drawing direction of the electric wire is also restricted. To solve this problem, it is conceivable to prepare multiple types of battery terminals according to the direction in which the electric wire is to be pulled out. However, the increase in the number of battery terminal types is complicated parts management, increased manufacturing costs, etc. From the viewpoint of

  In addition, the terminal shape of the electric wire connected to the battery terminal includes a plurality of terminals such as those having a connection terminal as in the above-mentioned patent document, those having no connection terminal, and an exposed core wire of the electric wire. Species exist. Therefore, if it is going to cope with both these multiple types of connection terminals and the direction of drawing out electric wires, it will be necessary to manufacture a very wide variety of battery terminals.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a battery terminal that can increase the degree of freedom of wire connection while avoiding complicated management processes and increased costs. .

  As a means for achieving the above object, the invention of claim 1 is characterized in that a connecting portion formed in an annular shape so as to surround the battery post, and extending from the connecting portion and connecting the connecting portion to the battery post. A battery terminal comprising: a terminal body integrally provided with a tightening portion to be fastened and fixed; and a wire connection portion to which an electric wire is connected and connected to the main body portion, wherein the terminal body and the electric wire The connection part is formed separately, and the connection part is provided with a plurality of attachment parts arranged in parallel in the circumferential direction, while the wire connection part can be selectively locked with respect to the plurality of attachment parts. It is characterized in that a simple locking portion is provided.

  According to a second aspect of the present invention, in the first aspect of the present invention, the locking portion includes a pair of insertion pieces that sandwich the wall surface of the attachment portion, and the wall surface and the insertion piece are engaged with each other. It is characterized in that an engagement portion is provided to restrict the insertion piece from being detached from the attachment portion by combining.

  According to a third aspect of the present invention, in the one according to the first or second aspect, the engagement portion is an inner insertion piece disposed on the inner peripheral side of the attachment portion of the pair of insertion pieces. It is composed of a locking projection that protrudes from the surface facing the mounting portion, and a locked portion that is provided on the inner peripheral surface of the mounting portion and is locked by the locking projection. It has the characteristics.

  The invention according to claim 4 is characterized in that, in the invention according to any one of claims 1 to 3, the wire connecting portion includes a barrel portion for crimping the core wire of the wire.

  Invention of Claim 5 is a thing in any one of Claims 1-3. WHEREIN: The said electric wire connection part is equipped with the stud bolt for connecting the terminal metal fitting attached to the terminal part of the said electric wire. It has a characteristic where it exists.

<Invention of Claim 1>
According to the first aspect of the present invention, since the terminal main body in which the fastening portion and the battery post connecting portion are integrally provided and the wire connecting portion are formed separately, the electric wire to be used by connecting the terminal main body and connecting It is possible to cope with a plurality of types of electric wire terminals by replacing only the electric wire connecting portion according to the terminal. Furthermore, while the connection portion is provided with a plurality of attachment portions arranged in parallel in the circumferential direction, the wire connection portion is provided with an engagement portion that can be selectively engaged with the plurality of attachment portions. The attachment position of the electric wire connecting portion can be selected according to the direction in which the electric wire is desired to be pulled out. Thereby, the freedom degree of wiring can be raised, suppressing the increase in a number of parts.

<Invention of Claim 2>
According to the invention of claim 2, the locking portion of the electric wire connecting portion is provided with a pair of insertion pieces that sandwich the wall surface of the attachment portion, and the wall surface and the insertion piece are connected to each other by engaging with each other. An engagement portion is provided that restricts the insert piece from being detached from the attachment portion. According to such a configuration, when the wall surface of the attachment portion is inserted between the insertion pieces, the engagement portions provided on the wall surface and the insertion piece are engaged with each other, and the insertion piece is fixed to the attachment portion. Is done. In this way, the wire connection portion can be attached to the connection portion by a one-touch operation of simply inserting the wall surface of the attachment portion between the insertion pieces, so that the attachment work is facilitated.

<Invention of Claim 3>
According to the invention of claim 3, the engaging portion is protruded on the surface on the side facing the mounting portion in the inner insertion piece arranged on the inner peripheral side of the mounting portion of the pair of insertion pieces. The locking projection is composed of a locking projection and a locked portion that is provided on the inner peripheral surface of the mounting portion and is locked by the locking projection. According to such a configuration, since the locking protrusion protrudes from the surface opposite to the side on which the battery post is mounted on the inner insertion piece to the outer peripheral side, the battery post protrudes from the locking protrusion. It is in close contact with the inner peripheral surface of the connecting portion without being disturbed. Therefore, the connection reliability of the battery terminal to the battery post is ensured.

<Invention of Claim 4>
According to invention of Claim 4, the electric wire connection part is equipped with the barrel part for crimping | bonding the core wire of an electric wire. According to such a structure, the connection of the electric wire in which the terminal metal fitting is not provided in the terminal is attained.

<Invention of Claim 5>
According to invention of Claim 5, the electric wire connection part is equipped with the stud bolt for connecting the terminal part of an electric wire. According to such a structure, the connection of the electric wire by which the terminal metal fitting provided with the insertion hole which can insert a stud bolt into the terminal is attained.

<Embodiment 1>
Embodiment 1 of the present invention will be described below with reference to FIGS.

  The battery terminal 1 of the present embodiment is for connecting an electric wire W to a battery post P of a battery B mounted on an automobile or the like, and bending a plate material obtained by punching a metal plate into a predetermined shape by pressing. The terminal main body 10 and the electric wire connecting portion 20 formed separately from the terminal main body 10 are provided.

  FIG. 1 is a plan view of the terminal body 10 according to the first embodiment, FIG. 2 is a side view of the terminal body 10 according to the first embodiment, and FIG. 3 is a diagram of the terminal body 10 according to the first embodiment. A front view is shown.

  Hereinafter, in each component member, the center line direction (vertical direction in FIG. 2) of the connecting portion 30 will be described as the vertical direction.

  The terminal body 10 includes a connection portion 30 connected to the battery post P, and a fastening portion 40 that fastens and fixes the connection portion 30 to the battery post P. The battery post P is formed in a tapered cylindrical shape having a diameter that gradually decreases toward the upper end side.

  The connection portion 30 includes an outer peripheral wall 31 formed so as to surround the outer periphery of the battery post P. The outer peripheral wall 31 is formed in an annular shape with the same taper angle as the battery post P, the diameter gradually decreasing toward the upper end side, and a predetermined width being opened in the circumferential direction.

  The tightening portion 40 includes a pair of extending pieces 41 extending from the open end to the radially outer peripheral side so as to face each other. As shown in FIG. 2, the extending piece 41 has a flat plate shape, and a bolt through hole 42 is formed at substantially the center position so as to penetrate both the extending pieces 41 coaxially. Moreover, as shown in FIG. 3, the rib 43 formed by carrying out the right-angle bending process of the both-ends edge is provided in the upper and lower parts of each extension piece 41. As shown in FIG. In this embodiment, the bending directions of the ribs 43 are opposite to each other at the upper and lower portions of the extending pieces 41. Further, the ribs 43 bent in the direction facing each other are located within the height range of the connection portion 30, and the ribs 43 bent in the back-to-back direction are located outside the height range of the connection portion 30. is doing. When the bolts and nuts are tightened, the two extending pieces 41 approach each other, and the inner diameter of the connecting portion 30 is reduced to allow the battery post P to be tightened. The rib 43 bent in the facing direction is abutted against the inner surface of the opposing extension piece 41 so that no further tightening can be performed.

  As shown in FIG. 1, the connection portion 30 has a plurality of attachment portions 32 (each having the same structure) that can selectively attach the wire connection portion 20 along the circumferential direction at equal angular intervals. It is arranged. The mounting portion 32 is provided at a total of three locations, one at a position facing the open portion of the arc-shaped outer peripheral wall 31 and one at a substantially intermediate position between the two. A portion of the outer peripheral wall 31 other than the attachment portion 32 is a contact wall portion 33 that is in close contact with the battery post P. Each attachment portion 32 is formed by bulging the outer peripheral wall 31 of the connection portion 30 radially outward. The attachment portion 32 is formed with substantially the same taper angle as the outer peripheral wall 31 of the connection portion 30. In addition, as shown in FIG. 2, the attachment portion 32 is provided with one locking window 34 (corresponding to the locked portion of the present invention).

  FIG. 4 shows a side view of the wire connecting portion 20 according to the first embodiment, and FIG. 5 shows a plan view of the wire connecting portion 20 according to the first embodiment.

  The electric wire connecting portion 20 is made of a metal plate, and is connected to the terminal main body 10 while being connected to the electric wire W. The electric wire connecting portion 20 has a substrate 21, and a barrel portion 23 including a pair of caulking pieces 22 is provided in the latter half portion. The barrel portion 23 plays a role of connecting to the electric wire W by caulking both the caulking pieces 22 to the core wire 24 of the electric wire W. On the other hand, a pair of insertion pieces 25 are provided at the front end of the substrate 21. Of the two insertion pieces 25, the one located on the front side is bent at a right angle from the front end of the substrate 21 so as to be able to bend, and is set as an inner insertion piece 25 a that can be inserted inside the attachment portion 32 in the connection portion 30. ing. In the state where the inner insertion piece 25a is inserted inside the mounting portion 32, the inner surface of the inner insertion piece 25a is positioned so as to be substantially flush with or slightly outward from the inner surface of the contact wall portion 33. It is. Moreover, the outer side insertion piece 25b is distribute | arranged behind the inner side insertion piece 25a in the board | substrate 21. FIG. The outer insertion piece 25b is formed with a width dimension covering almost the entire width of the substrate 21, and is fixed to the substrate 21 by means such as welding. The outer insertion piece 25b has an interval at which the attachment portion 32 can be sandwiched between the outer insertion piece 25a and faces the outer insertion piece 25b with substantially the same length. The inner insertion piece 25a is provided with a locking projection 26 cut and raised on the surface facing the outer insertion piece 25b. When the locking projection 26 is mounted at a normal position with both insertion pieces 25 sandwiching the mounting portion 32, the locking projection 26 is elastically locked to the upper edge of the locking window 34 and the entire wire connection portion 20 is fixed. It makes it possible to prevent

  Next, operations and effects of the first embodiment configured as described above will be described with reference to FIGS.

  FIG. 6 is a side sectional view showing a state before the electric wire connection portion 20 according to the first embodiment is attached to the terminal main body 10, and FIG. 7 is an attachment of the electric wire connection portion 20 according to the first embodiment to the terminal main body 10. FIG. 8 is a side sectional view showing a state in the middle, and FIG. 8 is a side sectional view showing a state where the battery terminal 1 according to the first embodiment is attached to the battery post P.

  First, the electric wire W is connected to the electric wire connection part 20 provided with the barrel part 23. The end portion of the electric wire W has the insulation coating removed and the core wire 24 is exposed. When the core wire 24 is caulked so as to be wrapped with both caulking pieces 22, the electric wire W and the electric wire connecting portion 20 can be electrically connected. Connected. Thus, since the electric wire connection part 20 is provided with the barrel part 23 for crimping | bonding the core wire 24 of the electric wire W, the connection of the electric wire W in which the terminal metal fitting is not provided in the terminal is attained.

  Next, the wire connecting portion 20 to which the wire W is connected is attached to the terminal body 10. In this attachment operation, one attachment portion 32 is selected according to the direction in which the electric wire W is to be drawn out from the plurality of attachment portions 32, and the insertion piece 25 provided in the wire connection portion 20 is positioned at the selected attachment portion 32. Align to. Then, as shown in FIG. 6, while the attachment portion 32 is inserted between the insertion pieces 25, both of them are set in a fitted state, and the electric wire connection portion 20 is pushed downward.

  Then, as shown in FIG. 7, when the inner insertion piece 25 a moves downward while being bent and deformed, and the locking projection 26 reaches a position suitable for the locking window 34, the inner insertion piece 25 a is elastically restored. Then, the locking projection 26 is locked to the upper edge of the locking window 34. Thereby, the electric wire connection part 20 and the electric wire W are attached to the terminal main body 10 in a retaining state.

  After the electric wire connection portion 20 is thus attached to the terminal body 10, the battery terminal 1 is fitted so that the inner peripheral surface of the connection portion 30 is in close contact with the outer periphery of the battery post P. At this time, the inner insertion piece 25a fitted in the attachment portion 32 of the connection portion 30 is in close contact with the battery post P. Then, when the bolt passed through the bolt through hole 42 provided in the tightening portion 40 and the nut screwed to the bolt are tightened, the inner diameter of the connecting portion 30 is increased as the both extended pieces 41 approach. Is gradually reduced, and the connecting portion 30 is fixed to the battery post P.

  As described above, according to the first embodiment, the following operational effects are exhibited.

  The connection portion 30 is provided with a plurality of attachment portions 32 arranged in parallel in the circumferential direction, while the electric wire connection portion 20 is provided with an insertion piece 25 that can be selectively locked to the plurality of attachment portions 32. Therefore, the attachment position of the electric wire connection part 20 can be selected according to the direction which wants to pull out the electric wire W. Therefore, compared to the conventional case where a dedicated battery terminal is required according to the wiring direction of the electric wire W, the electric wire connection portion 20 can be selectively mounted while the terminal body 10 is shared, thereby reducing the number of parts. It becomes possible.

  Moreover, since the electric wire connection part 20 can be attached to the connection part 30 by one-touch operation which inserts the attachment part 32 between the insertion pieces 25, attachment work becomes easy.

<Embodiment 2>
Next, a battery terminal 50 according to Embodiment 2 of the present invention will be described with reference to FIGS. In FIG. 9, the side view showing the state which connected the electric wire terminal to the electric wire connection part 51 concerning Embodiment 2 is shown, and in FIG. 10, the state which connected the electric wire terminal to the electric wire connection part 51 concerning Embodiment 2 is represented. FIG. 11 is a side sectional view showing a state in which the battery terminal 50 according to the second embodiment is attached to the battery post P. FIG.

  In the first embodiment, the connection is performed by directly caulking the electric wire W that does not have the terminal fitting at the terminal to the electric wire connecting portion 20, but in the second embodiment, the electric wire W with the terminal fitting is targeted. It is possible to connect. In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 1, and the overlapping description is abbreviate | omitted.

  Specifically, the electric wire connection portion 51 includes a stud bolt 52 in place of the barrel portion 23 of the electric wire connection portion 20 described above. On the other hand, the terminal fitting 53 connected to the electric wire terminal is provided with a barrel piece 54 that is caulked to the core wire of the electric wire W on one end side, and a terminal portion 56 having an insertion hole 55 that can be inserted into the stud bolt 52 on the other end side. ing. Then, when the insertion hole 55 of the terminal fitting 53 attached to the end of the electric wire W is passed through the stud bolt 52 of the electric wire connection portion 51 and fixed by the nut 57, the electric wire W and the electric wire connection portion 51 are connected to be conductive. The

  In addition to the first embodiment, if the electric wire terminal form as in the second embodiment is used in combination, a plurality of types of electric wire terminals can be handled. There may be a plurality of types of wire terminal forms as in the first and second embodiments. In that case, the number of combinations of a plurality of types of wire terminal forms and the wiring direction of the wires increases, and an extremely wide variety of battery terminals must be manufactured. However, according to the present application, it is only necessary to prepare wire connection portions corresponding to a plurality of types of wire terminals. Therefore, with the increase in the types of electric wire terminals, the effect of the present application of reducing the number of parts becomes even more remarkable.

<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, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.

  (1) In the present embodiment, the attachment form in which the insertion piece is provided in the wire connection portion and the attachment portion of the connection portion is sandwiched is shown. However, the present invention is not limited to this, and the connection between the connection portion and the wire connection portion can be taken. As long as it is installed in a state where it is attached, the format is not limited. For example, it may be riveted or may be separately attached using a clip material.

  (2) In the present embodiment, the attachment portion is inserted from the lower side between the insertion pieces of the electric wire connection portion, but not limited to this, the attachment portion is inserted between the insertion pieces of the electric wire connection portion. The mounting wall portion may be inserted from above.

  (3) In the present embodiment, the locking window of the attachment portion is formed through, but not limited to this, if the step where the locking projection of the electric wire connection portion is hooked is not formed. For example, a dent may be formed in the mounting wall portion.

<Related technologies>
Although not directly related to the present invention, the following technology has been developed for battery terminals.

  The connecting portion is integrally provided with an electric wire connecting portion on the side opposite to the two extending pieces, and can be caulked with the electric wire core wire. On the other hand, another wire connecting portion formed separately from the terminal body is provided between the two extending pieces. This other electric wire connection part is provided with the mounting plate clamped between both extension pieces, and is fastened with the extension piece with the volt | bolt and nut which clamp | tighten both extension pieces. The mounting plate extends above the extension piece, is bent horizontally therefrom, and a stud bolt is erected from the mounting plate to enable connection with an electric wire equipped with a terminal fitting having an insertion hole.

  If it is a thing of such a structure, the right or wrong of mounting | wearing of another electric wire connection part can be selected as needed.

The top view of the terminal main body concerning Embodiment 1 Side view of terminal body according to embodiment 1 The front view of the terminal body concerning Embodiment 1 The side view of the electric wire connection part concerning Embodiment 1. The top view of the electric wire connection part concerning Embodiment 1. Side sectional drawing showing the state before attaching the electric wire connection part concerning Embodiment 1 to a terminal main body Side sectional drawing showing the mode in the middle of attaching the electric wire connection part concerning Embodiment 1 to a terminal main body 1 is a side sectional view showing a state in which a battery terminal according to a first embodiment is attached to a battery post. The side view showing the state which connected the electric wire terminal to the electric wire connection part concerning Embodiment 2. The top view showing the state which connected the electric wire terminal to the electric wire connection part concerning Embodiment 2. Side sectional drawing showing the state in which the battery terminal concerning Embodiment 2 was attached to the battery post

Explanation of symbols

P ... Battery post W ... Electric wire 1 ... Battery terminal according to the first embodiment 10 ... Terminal body 20 ... Electric wire connection part 23 ... Barrel part 25 ... Insertion piece 25a ... Inner insertion piece 26 ... Locking protrusion 30 ... Connection part 32 ... Mounting part 34 ... Locking window (locked part)
DESCRIPTION OF SYMBOLS 40 ... Fastening part 50 ... Battery terminal which concerns on Embodiment 2 51 ... Electric wire connection part 52 ... Stud bolt

Claims (5)

A terminal body integrally formed with a connecting portion formed in an annular shape so as to surround the battery post, and a tightening portion extending from the connecting portion and fixing the connecting portion to the battery post; A battery terminal having an electric wire connecting portion connected to the main body while being connected with an electric wire,
The terminal body and the wire connection part are formed separately,
The connection portion is provided with a plurality of attachment portions arranged in parallel in the circumferential direction, and the wire connection portion is provided with a locking portion that can be selectively locked with respect to the plurality of attachment portions. Battery terminal characterized by. The locking portion is provided with a pair of insertion pieces that sandwich the wall surface of the mounting portion,
2. The battery terminal according to claim 1, wherein the wall surface and the insertion piece are provided with an engagement portion that engages with each other to restrict the insertion piece from being detached from the attachment portion. . The engaging projection is a projection protruding on the surface facing the mounting portion in the inner insertion piece disposed on the inner peripheral side of the mounting portion of the pair of insertion pieces, and The battery terminal according to claim 1, wherein the battery terminal is configured by a locked portion that is provided on an inner peripheral surface of the mounting portion and is locked by the locking protrusion. The battery terminal according to any one of claims 1 to 3, wherein the electric wire connecting portion includes a barrel portion for crimping the core wire of the electric wire. The battery terminal according to any one of claims 1 to 3, wherein the electric wire connecting portion includes a stud bolt for connecting a terminal fitting attached to a terminal portion of the electric wire.

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