JP3084192B2 - 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 electrically connected to a battery post.

[0002]

2. Description of the Related Art As a conventional battery terminal of this type, the one shown in FIGS.
No. 082).

[0005] As shown in FIGS. 5 and 6, a battery terminal 1 electrically connected to a battery post P includes a terminal body 3, a contact piece 5, and a bolt 7. The terminal body 3 includes a flat base 9 and a post press-contact portion 11 protruding from one end of the base 9. The post pressure contact part 11
The plate is bent so that the cross section parallel to the base 9 is substantially U-shaped, and the ends of both opposing walls 15 extending from the arcuate curved portion 13 are provided at one end of the base 9. Are joined. On both opposing walls 15 of the post press contact portion 11, rectangular long holes 17 having long sides in a direction parallel to the base 9 are formed. A screw hole 19 is formed in the center of the base 9,
A crimping piece 21 for crimping and connecting the electric wire W is connected to the other end of the base 9.
Is erected.

The contact piece 5 has a cross section that crosses the base 9 substantially U-shaped.
The plate body is formed in a bent shape so as to form a letter shape. Bolt insertion holes 27 are formed in both opposed pieces 25 extending from the arcuate bent portion 23. Guide projections 29 which are loosely fitted in the long holes 17 are protruded from both side edges of the bent portion 23.

[0005] The bolt 7 has a guide projection 2
9 is loosely fitted into the screw hole 19 through the bolt insertion hole 27.

When connecting the battery terminal 1 to the battery post P, as shown in FIG. 7, the battery post P is inserted between the post press contact portion 11 and the contact piece 5, and the bolt 7 is tightened. As a result, as shown in FIG. 8, the contact piece 5 is deformed into a flat shape, the bent portion 23 of the contact piece 5 extends toward the post press contact portion 11, and the battery post P is pressed by the post press contact portion 11, and the battery post P is pressed. The conductive connection state between P and the battery terminal 1 is favorably maintained.

As described above, according to the battery terminal 1, since the bolt 7 has the central axis substantially in the same direction as the direction in which the battery post P is erected, the bolt 7 is tightened from above the erected position of the battery post 9. Can do, bolt 7
The tightening operation can be easily performed as compared with the case where the central axis of the tightening is set to the lateral direction crossing the battery post P.

[0008]

However, in such a conventional battery terminal 1, the tightening force of the bolt 7 acts on the bent portion 23 of the contact piece 5 as shown in FIG. Therefore, there is a possibility that the contact piece 5 causes plastic deformation and metal fatigue. For this reason, the fastening force to the battery post P is reduced, and there is a possibility that the conductivity may be reduced. Further, since the direction of the load acting on the battery post P is only one direction from the contact piece 5 side, it is difficult to perform uniform tightening on the battery post P, and the load on the battery post P is reduced. There was a risk of being concentrated and damaged.

The present invention has been made in consideration of the above circumstances, and has as its object to provide a battery post which can be easily connected and can stabilize quality by ensuring uniform tightening of the battery post.

[0010]

According to a first aspect of the present invention, there is provided a battery terminal in which a conductive metal plate is folded in a substantially U-shape to form upper and lower opposing pieces. First U in which a post insertion hole to be mounted is formed
The upper and lower opposing pieces are formed by folding the conductive metal plate into a substantially U-shape, and the upper and lower opposing pieces are oriented in the same direction as the first U-shaped part, and the U-shaped tip faces the post insertion hole. First U
The second U-shaped part disposed between the opposing pieces of the U-shaped part is tightened in the insertion direction of the post insertion hole to reduce the distance between the opposing pieces of the first U-shaped part, It is characterized by comprising a fastening portion for narrowing the distance between the opposing pieces of the U-shaped portion and an electric wire connection portion to which the electric wire is connected.

According to a second aspect of the present invention, there is provided the battery terminal according to the first aspect, wherein the first U-shaped portion and the second U-shaped portion are integrally formed of one conductive metal plate. It is characterized by being bent.

According to a third aspect of the present invention, there is provided the battery terminal according to the first or second aspect, wherein the battery is provided at a periphery of a post insertion hole facing a U-shaped tip of the second U-shaped portion. It is characterized in that a wall portion that comes into contact with the peripheral surface of the post is provided.

[0013]

According to the first aspect of the present invention, when connecting the battery terminal to the battery post, the battery post is inserted into the post insertion hole, and the fastening portion is tightened from above the standing position of the battery post. Thereby, the distance between the opposing pieces of the first U-shaped part and the second U-shaped part is reduced, and the free ends of the respective U-shaped parts of the first U-shaped part and the second U-shaped part are displaced. Deforms flat. When the second U-shaped portion is deformed into a flat shape, the second U-shaped portion is deformed.
The U-shaped tip of the character portion protrudes inside the post insertion hole and presses the peripheral surface of the battery post. Further, the free ends of the U-shaped with a first U-shaped portion is deformed into a flat shape is displaced, the second
The periphery of the first U-shaped portion of the post <br/> bets insertion hole trying to move to the U-shaped distal end, said U-shaped front end peripheral surface of the battery post to the face the U-shaped leading end of the U-shaped portion From the side opposite to . That is, the battery post faces the U-shaped tip.
That it would be pressed from both sides by the peripheral edge and said U-shaped tip of the post insertion hole, it is possible to alleviate the concentration of the clamping force acting on the battery post.

According to the second aspect of the present invention, in addition to the function of the first aspect, the first U-shaped portion and the second U-shaped portion are formed by bending one conductive metal plate. Therefore, the structure of the battery terminal can be simplified.

According to the third aspect of the present invention, in addition to the function of the first or second aspect of the present invention, a wall portion is provided on the periphery of the post insertion hole facing the U-shaped tip. The inner surface of the part presses the peripheral surface of the battery post. Therefore, the battery post is pressed by the surface, and the concentration of the tightening force acting on the battery post can be reduced more accurately.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing a battery terminal according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the battery terminal of FIG. 1, FIG. 3 is a side sectional view of the battery terminal of FIG. FIG. 2 is a side sectional view illustrating an operation of a battery terminal in FIG. 1.

As shown in FIGS. 1 and 2, the battery terminal 31 has a first U-shaped portion 33 and a second U-shaped portion 51.
, A bolt 61 and a nut 63 as fastening parts, and an electric wire connection part 35. The first U-shaped portion 33, the second U-shaped portion 51, and the electric wire connection portion 35 are integrally formed by bending one conductive metal plate.

The first U-shaped portion 33 is formed of a substantially U-shaped conductive metal plate.
The upper and lower opposing pieces 37 and 39 are formed in the shape of a letter, and the tip 39a of the lower opposing piece 39 is folded back to form a second
Is continued to the U-shaped portion 51 of Upper and lower opposing pieces 37, 39
Has a post insertion hole 4 attached to the battery post P.
1, 43 are formed.

The second U-shaped portion 51 is formed by folding a conductive metal plate into a substantially U-shape to form upper and lower opposing pieces 53 and 55 in the same manner as the first U-shaped portion 33. The distal end 55 a of the opposing piece 55 is continuous with the first U-shaped portion 33. Second
The first U-shaped portion 51 faces in the same direction as the first U-shaped portion 33, and the first U-shaped portion 51 faces the post insertion holes 41 and 43 of the first U-shaped portion 33. It is disposed between the upper and lower opposing pieces 37 and 39 of the character portion 33. In the following, upper and lower opposing pieces 37 and 39 of the first U-shaped portion 33 are used.
With the upper outer facing piece 37 and the lower outer facing piece 39, respectively.
The upper and lower opposing pieces 53 and 55 of the second U-shaped portion 51 are referred to as an upper inner opposing piece 53 and a lower inner opposing piece 55, respectively.
The upper outer facing piece 37 and the upper inner facing piece 53 are referred to as both upper facing pieces, and the lower outer facing piece 39 and the lower inner facing piece 55 are referred to as both lower facing pieces.

As shown in FIG. 3, the upper inner facing piece 53 is
The upper side opposing pieces 37 are surface-contacted and joined, and the tips 37a, 53a of both upper side opposing pieces 37, 53 are aligned. The lower inner opposing piece 55 has a stepped portion 56 which is bent toward the upper inner opposing piece 53 to form a space 36 between the lower opposing pieces 39 and 55.
Is provided, and the lower inner facing piece 55 is more U-shaped than the stepped portion 56.
It is joined to the lower outer facing piece 39 by surface contact on the character turning side 55b. Tips 39a, 5 of both lower opposing pieces 39, 55
5a is a tip 37a, 53a of both upper opposing pieces 37, 53.
More protruding.

The bolt 61 is connected to the post insertion holes 41 and 4.
3 is set upright on the lower inner facing piece 55 substantially in parallel with the insertion direction. The head 61a of the bolt 61 is attached to both lower opposing pieces 3
The bolt 61 is accommodated in the space 36 between the lower and upper parts 9, 55, and protrudes through the hole 73 formed in the lower inner facing piece 55. A projection 61b is provided on the head 61a of the bolt 61, and the projection 61 is fitted into a positioning hole 75 formed in the lower outer facing piece 39. The head 61a of the bolt 61 abuts on the inner surface of the step portion 56 of the lower inner opposing piece 55, and the abutment and the fitting enhance the prevention of relative movement between the lower opposing pieces 39, 55.

Each of the upper opposing pieces 37 and 53 has a bolt insertion hole 71 penetrating vertically. The bolt 61 passes through the bolt insertion hole 71, and a nut 63 is screwed above the bolt 61. When the nut 63 is tightened, both upper opposing pieces 3
7, 53 are pushed down to both lower opposing pieces 39, 55,
The distance between the upper outer facing piece 37 and the lower outer facing piece 39 is reduced, and the distance between the upper inner facing piece 53 and the lower inner facing piece 55 is reduced. When the nut 63 is most tightened, the tip 53a of the upper inner facing piece 53 is
Touch Further, the bolt insertion hole 71 is formed in a long hole shape so as to allow movement of both upper opposing pieces 37 and 53.

As shown in FIG. 3 , the U of the second U-shaped portion 51
The peripheral edge of the post insertion holes 41, 43 of the first U-shaped portion 33 facing the shaped tip 51 a, a battery peripheral surface of the post P and abuts the wall portion 41a, 43a are projected. As shown in FIG. 2, irregularities are formed on the inner surfaces of the walls 41a and 43a to prevent the battery post P from rotating around the axis.

The wire connecting portion 35 is provided on the tip 39a side of the lower outer facing piece 39, and the tip 39a of the lower outer facing piece 39 is provided.
A terminal connection bolt 34 is provided upright on the side a. A hole 67 of a plate terminal 65 crimped to the end of the electric wire W is inserted into the terminal connection bolt 34, and as shown in FIG.
A terminal connection nut 38 is fastened from above the plate terminal 65. As shown in FIG. 3, the head 3 of the terminal connection bolt 34
4a are both lower opposing pieces 39, 55 of the first and second U-shaped portions.
It is accommodated in the space 36 between them.

When the battery terminal 31 is connected to the battery post P, the post insertion hole 4 is set so that the nut 63 is located above the standing position of the battery post P as shown in FIG.
The battery posts P are inserted into the battery posts P1, 43, and the nut 63 is tightened from above the standing position of the battery posts P. As a result, as shown in FIG. 4, the distal ends 37a, 53a of the upper opposing pieces 37, 53, which are free ends of the U-shape, are connected to the lower opposing pieces 3 respectively.
9 and 55, and the distance between the upper opposing pieces 37 and 53 and the lower opposing pieces 39 and 55 is reduced.
The U-shaped part 33 and the second U-shaped part 51 are deformed flat.

When the second U-shaped portion 51 is deformed into a flat shape,
The U-shaped tip 51a protrudes inside the post insertion holes 41 and 43, and the peripheral surface of the battery post P is indicated by the lower arrow in FIG.
Press in the direction shown . When the tip 37a of the upper outer facing piece 37 of the first U-shaped portion 33 is displaced, the upper outer facing piece 37 is displaced.
37 and the distance between the lower outer facing piece 39 is reduced,
The side opposing piece 37 is a U-shaped tip of the wall portion 41a and the second U-shaped portion 51
It is deformed in a direction to narrow the gap between the end 51a,
The periphery of the post insertion holes 41 , 43 on the wall portions 41a, 43a side facing the U-shaped tip 51a is U-shaped end 51a (FIG. 4).
(In the direction indicated by the upper arrow) , the peripheral surface of the battery post P is pressed from the side facing the U-shaped tip 51a . That is, the battery post P is connected to the U-shaped tip 51a.
The post insertion holes 41 on the opposing walls 41a, 43a side ,
43 is pressed from both sides by the peripheral edge of the 43 and the U-shaped tip 51a, so that the concentration of the tightening force acting on the battery post P can be reduced.

Further, since the wall portions 41a and 43a are provided on the periphery of the post insertion holes 41 and 43 facing the U-shaped tip 51a, the inner surfaces of the wall portions 41a and 43a
Is pressed. Therefore, the battery post P is pressed by the surface, and the concentration of the tightening force acting on the battery post P can be reduced more accurately.

Therefore, uniform tightening to the battery post P can be ensured, and plastic deformation and metal fatigue of the first U-shaped portion 33 and the second U-shaped portion 51 and damage to the battery post P are less likely to occur. Since the strong tightening force on the battery post P is maintained, the quality can be stabilized by improving the durability.

Further, since the nut 63 can be tightened from above the standing position of the battery post P, the tightening operation can be easily performed as compared with the case where the nut 63 is tightened from the lateral direction crossing the battery post P.

Furthermore, since the first U-shaped portion 33 and the second U-shaped portion 51 are formed by bending one conductive metal plate, the structure of the battery terminal 31 can be simplified.

[0032]

As described above, according to the first aspect of the present invention, the fastening portion can be tightened from above the standing position of the battery post, so that the fastening is performed from the lateral direction crossing the battery post. The fastening operation can be performed easily as compared with the case of the first embodiment.

Also, since the battery post is pressed from both sides by the post insertion hole and the U-shaped tip, the concentration of the tightening force acting on the battery post is reduced, so that the battery post can be uniformly tightened. Therefore, plastic deformation and metal fatigue of the first U-shaped portion and the second U-shaped portion, and damage to the battery post are unlikely to occur, and a strong tightening force on the battery post is maintained. Can be stabilized.

According to the invention described in claim 2, according to claim 1
And the structure of the battery terminal can be simplified.

According to the invention described in claim 3, according to claim 1
Alternatively, in addition to the hole according to the second aspect of the present invention, since the inner surface of the wall presses the battery post with the surface, the concentration of the tightening force acting on the battery post can be reduced more accurately, and the quality can be reduced. Can be further stabilized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a battery terminal according to one embodiment of the present invention.

FIG. 2 is an exploded perspective view of the battery terminal of FIG.

FIG. 3 is a side sectional view of the battery terminal of FIG. 1;

FIG. 4 is a side sectional view for explaining the operation of the battery terminal of FIG. 1;

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

FIG. 6 is a perspective view showing a conventional example.

FIG. 7 is a side sectional view showing a conventional example.

FIG. 8 is a side sectional view showing a conventional example.

[Explanation of symbols]

 31 Battery terminal 33 First U-shaped part 35 Wire connection part 37 Opposing piece (upper side) 39 Opposing piece (lower side) 41 Post insertion hole 41a Wall part 43 Post insertion hole 43a Wall part 51 Second U-shaped part 51a U End of character 53 Opposing piece (upper) 55 Opposing piece (lower) 61 Bolt (tightening part) 63 Nut (tightening part) P Battery post W Electric wire

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 5-84050 (JP, U) JP-A 5-84049 (JP, U) JP-A 4-130882 (JP, U) JP-A 63- 194471 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H01M 2/20-2/34 H01R 4/48 H01R 11/12

Claims (3)

(57) [Claims] 1. A first U-shaped part in which a conductive metal plate is folded in a substantially U-shape to form upper and lower opposing pieces, and a post insertion hole formed in the upper and lower opposing pieces is mounted on a battery post. The conductive metal plate is folded in a substantially U-shape to form upper and lower opposing pieces. The first and second opposing pieces face in the same direction as the first U-shaped portion, and the first U-shaped end faces the post insertion hole. A second U-shaped part disposed between the opposing pieces of the U-shaped part,
A tightening portion for reducing the distance between the opposing pieces of the U-shaped portion and the distance between the opposing pieces of the second U-shaped portion, and an electric wire connection portion to which the electric wire is connected. Battery terminal. 2. The battery terminal according to claim 1, wherein the first U-shaped portion and the second U-shaped portion are integrally bent from a single conductive metal plate. A battery terminal. 3. The battery terminal according to claim 1, wherein a peripheral edge of the post insertion hole facing a U-shaped tip of the second U-shaped portion is in contact with a peripheral surface of the battery post. A battery terminal having a wall portion in contact therewith.