JP3180722B2 - Battery terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery terminal mounted on a battery post of a battery mounted on a motor vehicle, and more particularly to a battery terminal which can be mounted vertically from above to improve workability. Things.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, an electrode fitting portion 3a of a battery terminal 3 is externally fitted to a battery post 2 protruding from the upper surface of a battery 1, as shown in FIG. The bolt 4 is passed through the bolt hole of the plate portion 3c, the nut 6 is tightened from the horizontal direction while the impact wrench 5 is tilted sideways with respect to the bolt 4, and the electrode fitting portion 3a is pressed against the battery post 2, The battery terminal 3 is fixed to the battery post 2.

[0003]

In recent years, an engine room in which a battery of an automobile is mounted has a very large number of installation parts and a high density. There are many maneuvers. In such a situation, as described above, when the nut 6 is tightened in a state where the bolt 4 is arranged in the horizontal direction and the impact wrench 5 is tilted sideways, the impact wrench interferes with other parts and is difficult to tighten. At the same time, depending on the case, there is no space for arranging the impact wrench horizontally, so that the impact wrench cannot be tightened.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has an object to prevent an impact wrench from interfering with other parts by tightening a bolt from above with a bolt tightening direction being a vertical direction. And

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a terminal body having a pair of left and right extending from an open free end of an annular electrode fitting portion externally fitted to a battery post. First and second fastening plate portions are provided, and upper and lower surfaces of the first fastening plate portion are provided with L-shaped protrusions to form a rectangular frame-shaped portion, and upper and lower surfaces of the square frame-shaped portion are provided. On the inner surface of the side surface facing the first fastening plate portion, a tapered projecting portion that expands upward is provided, and the second fastening plate portion is provided with the first fastening plate inside the square frame-shaped portion. Along with being inserted into the fastening plate portion side, a tapered protrusion that expands upward is provided on the inner surface thereof, and between the tapered protrusions of the opposed first and second fastening plate portions in the square frame-shaped portion. At the bottom, place a nut that is screwed into the bolt to be inserted through the bolt hole The bolt is tightened from above, the nut is raised at the time of the tightening, the tapered protrusion of the second tightening plate on the side is pressed, and the second tightening plate is moved to the first position. A battery terminal is provided in which the electrode fitting portion is moved to the fastening plate portion side to press and fix the electrode fitting portion to the outer peripheral surface of the battery post.

When the bolt inserted into the bolt hole of the rectangular frame is tightened from above, as the nut rises, the second tightening is performed through the nut and the tapered protrusion of the second tightening plate. Since the attachment plate is pressed toward the first fastening plate, the electrode fitting portion can be pressed and fixed to the outer peripheral surface of the battery post.
That is, since the tightening is performed from directly above instead of the tightening from the lateral direction, the tightening operation can be performed without taking a space at the time of fastening and fixing, and the workability is improved.

More specifically, the terminal body is formed by bending a metal plate so that the first and second fastening plate portions and the rectangular frame portion are integrally formed. It is designed to be assembled in the square frame-shaped portion in advance in a state of being screwed. In this case, the terminal body can be formed only by bending the plate member, so that the cost is low,
In addition, when the battery terminal is fixed to the battery post, only the electrode fitting portion is fitted to the battery post without requiring any additional members, and preparation for tightening with the bolt is completed, thereby improving workability. be able to.

The terminal body has a substrate portion extending from the electrode fitting portion on the side opposite to the side on which the first and second tightening plate portions extend, and an electric wire connection is provided on the substrate portion. It is preferable to provide a stud bolt for projection and / or a barrel for crimping an electric wire (claim 2). With this configuration, the terminal connected to the electric wire can be fastened and fixed to the stud bolt with a nut, or the electric wire can be directly crimped and connected to the barrel for crimping the electric wire. It is preferable that an LA terminal (a crimp terminal provided with a bolt hole) connected to a starter motor and / or an alternator is connected to the stud bolt of the board portion.

The terminal body has a substrate portion extending from the electrode fitting portion on the side opposite to the side on which the first and second fastening plate portions extend, and a plurality of holes are formed in the substrate portion. It is preferable to provide a bolt hole or a nut embedding portion for connection with one end of a plate-shaped fuse. With this configuration, the plate fuse and the battery terminal can be integrated, and the fuse can be connected to the battery without passing through a lead wire.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a terminal body 10 of a battery terminal attached to a battery post 2 protruding from an upper surface of a battery 1 mounted on an automobile is formed by bending a metal plate and integrally forming a substantially cylindrical shape. It has an annular electrode fitting portion 11 that is fitted to the external shape of the battery post 2, and a tightening portion 12 that tightens and fixes the electrode fitting portion 11.

The tightening portion 12 has a pair of left and right first tightening plate portions 12a which bend the open end of the electrode fitting portion 11 and extend outward to face each other. A fastening plate 12b is provided. The first tightening plate portion 12a further includes an upper end surface and a lower end surface, each of which is further extended to form an inverted L-shaped protrusion 13a,
b, the side surface 13c of the upper protruding portion 13a extends to the lower protruding portion 13b, and the side surface 1 of the lower protruding portion 13b is provided.
3d is engaged with the outside of the side wall portion 13c to form a square frame-shaped portion 14.

Bolt holes 14a and 14b located on the same axis are formed in the upper and lower surfaces of the rectangular frame portion 14, and a first fastening plate portion is formed on the inner surface of the side surface 13c of the projecting portion 13a. Opposite to 12a, a tapered projection 15a that expands upward is provided by stamping. On the other hand, the second fastening plate portion 12b is inserted into the square frame portion 14 so as to be arranged inside the first fastening plate portion 12a,
On its inner surface, a tapered protruding portion 15b that expands upward so as to face the protruding portion 13a is similarly provided by stamping.

In the rectangular frame-like portion 14, the bolt holes 14a, 14b are provided in the lower portions between the opposed first and second tightening plate portions 12a, 12b between the tapered protrusions 15a, 15b.
A nut 17 screwed with a bolt 16 inserted through 14b is arranged. The nut 17 has inclined guide surfaces 18a and 18b formed on an outer peripheral surface thereof, which are inclined in the axial direction toward the upper side, facing the tapered protrusions 15a and 15b. The bolt 16 and the nut 17 are
By screwing in advance in the square frame portion 14 and further squeezing the tip end of the bolt 16 protruding from the bolt hole 14b, the terminal body 10,
It is preferable that the bolt 16 and the nut 17 are assembled integrally.

In the terminal body 10, the upper end of the electrode fitting portion 11 is bent outward in the horizontal direction on the side opposite to the side on which the first and second fastening plate portions 12a and 12b extend. The substrate portion 19 is integrally provided.
One or many stud bolts 20 protrude upward from the board portion 19, and are wired to the stud bolts 20 as various power lines directly connected to a battery such as a starter motor and an alternator. The electric wire 21 is connected and fixed by a nut 22 via an LA terminal 21a connected to the terminal. The electric wires 21 can be connected to the stud bolts 20 either before or after press-fixing the terminal body 10 to the battery post 2, or a plurality of electric wires 21 may be connected at the same time.

As shown in FIG. 1, the battery terminal has an electrode fitting portion 11 fitted outside the battery post 2. Next, by tightening the bolt 16 from above with an impact wrench, the nut 17 rises from the state of FIG. 2A to the state of FIG. As the nut 17 rises, the inclined guide surfaces 18a, 18
b slides along the tapered protrusions 15a and 15b, and in the process of moving the nut 17 upward, the vertical tightening force is converted to the horizontal direction, and thus the second tightening plate 12b is The electrode fitting portion 11 is pressed and moved toward the one tightening plate portion 12a, whereby the diameter of the electrode fitting portion 11 is reduced.

FIG. 3 shows a second embodiment, in which an electrode fitting portion 1 is provided.
A barrel 39a for directly crimping the exposed core wire 31a by peeling off the end of the electric wire 31 is further provided on the substrate portion 39 extended to 1. Note that the substrate 39 may include only the barrel 39 a for connecting the electric wire 31. The other configuration and the method of fastening to the terminal body are the same as those in the above-described embodiment, and a description thereof will be omitted.

FIG. 4 shows a third embodiment, in which an electrode fitting portion 1 is provided.
A plurality of bolt holes 49a or nut embedding portions 49b in which nuts are embedded and fixed in advance are provided in the substrate portion 49 extending in
Alternatively, it can be connected and fixed to the nut embedding portion 49b via a bolt 49c. The other configuration and the method of fastening to the terminal body are the same as those in the above-described embodiment, and a description thereof will be omitted.

The stud bolts, barrels, and bolt holes provided on the board portion of the first to third embodiments may be provided alone or in combination of a plurality of types. Can be set arbitrarily in accordance with the number of.

[0019]

As is apparent from the above description, according to the present invention, the battery terminal can be fastened and fixed to the battery post from above by using a fastener. Therefore, at the time of fastening the battery terminal, no space is required and workability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2A is a sectional view of a main part before bolt tightening,
(B) is a sectional view of a main part after completion of the fastening.

FIG. 3 is a perspective view showing a second embodiment.

FIG. 4 is a perspective view showing a third embodiment.

FIG. 5 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Terminal main body 11 Electrode fitting part 12a First fastening plate part 12b Second fastening plate part 13c, 13d Side surface 14 Square frame part 14a, 14b Bolt hole 15a, 15b Tapered projection part 16 Bolt 17 Nut 19, 39 , 49 Board part 20 Stud bolt 21, 31 Electric wire 22 Nut 39a Barrel 49b Nut embedding part

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01R 11/12 H01M 2/30

Claims (3)

(57) [Claims] The terminal body includes a pair of left and right first and second tightening plates extending from free open ends of an annular electrode fitting portion externally fitted to the battery post. A rectangular frame-shaped portion is provided by providing an inverted L-shaped projection from the upper end surface and the lower end surface of the attached plate portion, and a bolt hole is formed in the upper and lower surfaces of the square frame-shaped portion, and a first fastening plate portion is provided. On the inner surface of the opposing side surface, a tapered protrusion that expands upward is provided, while the second tightening plate portion is inserted into the first tightening plate portion side in the square frame portion, and the inner surface faces upward. A nut screwed into a bolt inserted through the bolt hole at a lower portion between the opposed tapered projections of the first and second fastening plate portions in the square frame-shaped portion. The bolts are tightened from above, and when tightening By raising the nut, pressing the tapered protrusion of the second tightening plate on the side, moving the second tightening plate toward the first tightening plate, A battery terminal that is configured so that the joint is pressed and fixed to the outer peripheral surface of the battery post. 2. The terminal body further includes a substrate portion extending from the electrode fitting portion on a side opposite to a side on which the first and second tightening plate portions extend, and the terminal portion is provided on the substrate portion. 2. The battery terminal according to claim 1, wherein a stud bolt for connecting an electric wire is protruded or / and a barrel for crimping the electric wire is provided. 3. 3. The terminal body further includes a substrate portion extending from the electrode fitting portion on a side opposite to a side on which the first and second tightening plate portions extend, and the terminal portion is provided on the substrate portion. The battery terminal according to claim 1, wherein a plurality of bolt holes or nut embedding portions are provided so as to be connectable to one end of the plate-shaped fuse.