JP2022042587A - Battery terminal - Google Patents

Abstract

To provide a battery terminal with improved holding power to a battery post.SOLUTION: A battery terminal 1, 10, 11 includes a C-shaped first holding portion 20B that sandwiches a battery post 102, a pair of first facing portions 27, 27 that are continuous at both ends of the first holding portion, a C-shaped second holding portion 20A provided so as to face the first holding portion in a direction in which the battery post 102 protrudes and sandwiches the battery post 102, a pair of second facing portions 26, 26 that are continuous at both ends of the second sandwiching portion, and an operation portion 4 that tightens the battery post 102 by bringing the pair of first facing portions and the pair of second facing portions close to each other, and the first displacement amount of the first facing portion from the initial state before tightening to the tightening state in which the battery post 102 is tightened by the operating portion is formed to be larger than the second displacement amount of the second facing portion.SELECTED DRAWING: Figure 3

Description

The present invention relates to a battery terminal connected to a battery post.

Conventionally, power is supplied from a battery in a vehicle to each load via a battery terminal (see, for example, Patent Document 1). (For example, see Patent Document 1).

In Patent Document 1, upper and lower annular portions coaxially arranged in the central axis direction of the battery post, and left and right connecting portions provided at both ends of the upper and lower annular portions to connect the upper and lower annular portions are screwed together. Disclosed is a battery terminal comprising a tightening member for tightening the battery post by bringing the left and right connecting portions close to each other.

At the center of the upper and lower annular portions, a contact inner peripheral wall for inserting a battery post is provided. The contact inner peripheral wall comprises an upper cylindrical portion extending downward from the peripheral edge of the upper annular portion and a lower cylindrical portion extending upward from the peripheral edge of the lower annular portion of the battery post. It is composed of curved surfaces that match the cylindrical surface. The upper cylindrical portion and the lower cylindrical portion are provided with a meshing portion for integrating the upper cylindrical portion and the lower cylindrical portion. By providing such a meshing portion, the upper cylindrical portion and the lower cylindrical portion are restricted from being displaced from each other in the circumferential direction, and the rigidity of the upper and lower annular portions is increased, so that the upper and lower cylindrical portions are provided with respect to the battery post. High tightening force can be obtained.

Japanese Unexamined Patent Publication No. 10-223199

However, in the conventional battery terminal, as the tightening member is screwed, the upper and lower annular portions are brought closer to the battery post by the same distance to tighten the battery post, but the tightening amount is insufficient and the tightening force is insufficient. If is not sufficient, the conventional battery terminal tends to come off upward with respect to the battery post, and further improvement of the holding power to the battery post has been required.

An object of the present invention is to provide a battery terminal having an improved holding power to a battery post.

In order to solve the above-mentioned problems and achieve the object, the invention according to claim 1 is a battery terminal connected to a battery post provided so as to project from the upper surface of the battery body, and sandwiches the battery post. A character-shaped first holding portion, a pair of first facing portions continuous at both ends of the first holding portion, and a pair of first facing portions facing the first holding portion in a direction in which the battery post protrudes are provided. A C-shaped second holding portion that sandwiches the battery post, a pair of second facing portions that are continuous at both ends of the second holding portion, the pair of first facing portions, and the pair of second facing portions. The first of the first facing portions having an operating portion for tightening the battery post by bringing the portions close to each other, and reaching a tightening state in which the battery post is tightened by the operating portion from the initial state before tightening. The amount of displacement is a battery terminal characterized by being larger than the amount of second displacement of the second facing portion.

The invention according to claim 2 is the invention according to claim 1, wherein in the initial state, the first outer edge of the pair of first facing portions separated from each other is in the pair of second facing portions. It is characterized in that it is located outside the second outer edge on sides separated from each other.

The invention according to claim 3 includes, in the invention according to claim 2, a connecting portion for connecting each of the first facing portions and the second facing portions, and the connecting portion has the first outer edge. It is characterized in that a diagonal portion extending diagonally toward the second outer edge is provided.

According to the first aspect of the invention, the C-shaped first sandwiching portion that sandwiches the battery post, a pair of first facing portions that are continuous at both ends of the first sandwiching portion, and the first sandwiching portion. On the other hand, a pair of a C-shaped second holding portion provided so as to face each other in the direction in which the battery post protrudes and sandwiching the battery post, and a pair of second facing portions continuous to both ends of the second holding portion. It has an operation unit for tightening the battery post by bringing the first facing portions and the pair of second facing portions close to each other, and from the initial state before tightening until the tightening state where the battery post is tightened by the operation unit is reached. The first displacement amount of the first facing portion of the above is configured to be larger than the second displacement amount of the second facing portion. According to this, in the tightened state, the first holding portion continuous with the first facing portion is brought closer to the battery post than the second holding portion continuous with the second facing portion, and the first holding portion is the second holding portion. Tighten the battery post more strongly than in. Here, although it may be difficult for the operator to determine the completion of tightening by the operation unit, the first displacement amount of the first facing portion is configured to be larger than the second displacement amount of the second facing portion. As a result, when the second holding portion comes into contact with the battery post, the degree of contact of the first holding portion with the battery post is more than that, so that the operator can see that the second holding portion is a battery. It is possible to judge the completion of tightening based on the contact with the post. That is, by tightening the battery post to an appropriate position by the operation unit, it is possible to improve the holding force to the battery post.

It is a perspective view which shows the battery terminal which concerns on one Embodiment of this invention. It is a top view which shows the battery terminal. It is a rear view which shows the said battery terminal. It is a perspective view which shows the terminal body which constitutes the said battery terminal. It is a figure for demonstrating the procedure of connecting the battery terminal to the battery post, and is the figure which shows the state of inserting the battery terminal into the battery post. 2 is a cross-sectional view taken along the line I-I in FIG. 2, where FIG. 2A is a cross-sectional view showing an initial state before tightening, and FIG. 2B is a cross-sectional view showing a tightening state. It is a rear view which shows the modification of the battery terminal. It is a rear view which shows the other modification of the battery terminal.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG. 1 is a perspective view showing a battery terminal according to an embodiment of the present invention. FIG. 2 is a plan view showing the battery terminal. FIG. 3 is a rear view showing the battery terminal.

As shown in FIGS. 1 to 3, the battery terminal 1 according to the embodiment of the present invention is electrically and mechanically connected to a battery post 102 provided so as to project from the upper surface 101a of the battery body 101 to form a battery. Power is supplied from 100 to each load. As shown in FIG. 1, the battery 100 includes a battery main body 101 and a battery post 102 protruding from the upper surface 101a of the battery main body 101. The battery post 102 of the present embodiment is formed in a columnar shape so that the diameter dimension decreases toward the tip.

Further, in the present embodiment, the direction in which the battery post 102 protrudes from the upper surface 101a of the battery body 101 is referred to as "vertical direction Z", and one of the directions in which the upper surface 101a of the battery body 101 extends is one direction orthogonal to the vertical direction. The direction in which the pair of contact / detachment pieces 21R and 21L, which will be described later, which constitute the post connection portion 2 face each other, is referred to as a "left-right direction", and is orthogonal to the left-right direction among the directions in which the upper surface 101a of the battery body 101 extends. The direction may be described as "front-back direction X".

As shown in FIG. 1, the battery terminal 1 includes a post connection portion 2 connected to the battery post 102, a device connection portion 3 connected to each load (not shown) mounted on a vehicle (not shown), and a device connection portion 3 connected to each load (not shown). To prepare for. In the present embodiment, the device connection portion 3 is continuously provided on one side (lower right in FIG. 1) of the post connection portion 2 in the front-rear direction X. The post connection portion 2 and the device connection portion 3 are formed by pressing or bending a single metal plate made of a conductive material.

As shown in FIGS. 1 to 3, the post connection portion 2 is a pair of a C-shaped holding portion 20 through which the battery post 102 is inserted and sandwiching the battery post 102, and a pair of continuous C-shaped holding portions 20 at both ends of the C-shaped holding portion 20. It is provided with an operation mechanism 4 (operation unit) for tightening the battery post 102 by bringing the contact / detachment pieces 21R and 21L and the pair of contact / detachment pieces 21R and 21L close to each other.

As shown in FIG. 4, the C-shaped holding portion 20 is formed by punching or bending each of the upper wall 2A and the lower wall 2B facing each other, and is provided on the upper wall 2A. The upper C-shaped holding portion 20A (second holding portion) and the lower C-shaped holding portion 20B (first holding portion) provided on the lower wall 2B are provided.

The upper C-shaped holding portion 20A is provided in a C-shape and is configured such that the battery post 102 is inserted into the inside thereof (hereinafter referred to as the upper insertion portion 21A). The lower C-shaped holding portion 20B is provided in a C-shape and is configured such that the battery post 102 is inserted into the inside thereof (hereinafter referred to as the lower insertion portion 21B).

As shown in FIG. 4, the upper C-shaped holding portion 20A includes an upper wall main body 22A, an upper peripheral wall portion 23A that bends from the inner edge of the upper wall main body 22A and extends downward to form an upper insertion portion 21A. A pair of upper outer walls 24A and 24A that are bent from the outer edge of the upper wall main body 22A and face outward in the left-right direction of the upper peripheral wall portion 23A are provided. The upper peripheral wall portion 23A is formed so as to face the peripheral surface of the battery post 102 when the battery post 102 is inserted.

Further, as shown in FIG. 4, the upper outer wall 24A has an engaging recess 25A that engages with the engaging piece 25B extending from the upper edge of the lower outer wall 24B of the lower C-shaped holding portion 20B described later. Is provided. With the engaging piece 25B and the engaging recess 25A engaged, the mutual movement of the upper C-shaped holding portion 20A and the lower C-shaped holding portion 20B in the circumferential direction is suppressed.

As shown in FIG. 4, the lower C-shaped holding portion 20B is a lower peripheral wall portion that is bent from the inner edge of the lower wall main body 22B and the lower wall main body 22B and extends upward to form the lower insertion portion 21B. The 23B and a pair of lower outer walls 24B and 24B that are bent from the outer edge of the lower wall main body 22B and face the outer side in the left-right direction of the lower peripheral wall portion 23B are provided. The lower peripheral wall portion 23B is formed so as to face the peripheral surface of the battery post 102 when the battery post 102 is inserted.

As shown in FIGS. It is configured in a substantially U-shape with a connecting wall 28 (connecting portion) continuous with the wall 26 and the lower continuous wall 27. Such a pair of contact / detachment pieces 21R and 21L are provided so as to be contactable and detachable in the left-right direction, and when they approach each other, the upper C-shaped holding portion 20A and the lower C-shape that are continuous with the pair of contact / detachment pieces 21R and 21L are provided. By sandwiching and tightening the battery post 102 with the holding portion 20B and separating them from each other, the battery post 102 is tightened with the upper C-shaped holding portion 20A and the lower C-shaped holding portion 20B continuous with the pair of contacting and separating pieces 21R and 21L. Is configured to loosen.

Further, in the present embodiment, as shown in FIGS. Located outside the outer upper end edge 26a, the connecting wall 28 is provided with an oblique end edge 28a (diagonal portion) continuous with the upper end edge 26a of the upper continuous wall 26 and the lower end edge 27a of the lower continuous wall 27. Has been done. As shown in FIG. 3, the diagonal edge 28a is provided diagonally outward in the left-right direction toward the bottom.

As shown in FIGS. 1 and 2, the operation mechanism 4 includes a bolt 5 and a plate nut 6 (nut) screwed onto the bolt 5. In this embodiment, the washer 53 and the plate nut 6, which will be described later, of the bolt 5 are configured so that the thickness in the tightening direction (left-right direction) is constant.

The bolt 5 includes a bolt shaft portion 51, a head portion 52 provided at the tip end portion of the bolt shaft portion 51, and a ring-shaped washer 53 inserted through the bolt shaft portion 51. The outer peripheral surface of the bolt shaft portion 51 is threaded so as to be screwed into the screwed portion 62 of the plate nut 6.

The plate nut 6 includes a plate nut main body 61 formed in a rectangular parallelepiped shape, and a screw portion 62 formed extending from the plate nut main body 61 in a cylindrical shape and screwed into a bolt shaft portion 51.

When the battery post 102 is tightened by the upper C-shaped holding portion 20A and the lower C-shaped holding portion 20B by operating such an operating mechanism 4, the screwed portion 62 of the plate nut 6 is placed on the upper side of the contacting / separating piece 21L. A washer 53 is inserted through the bolt shaft portion 51 in a state where the plate nut main body 61 is inserted between the continuous wall 26, the lower continuous wall 27, and the connecting wall 28 so as to face the contact / separation piece 21L, and the bolt shaft portion 51 is inserted. Bring the tip close to the screwed portion 62 of the plate nut 6 and rotate the bolt 5 in the tightening direction (for example, clockwise). That is, the bolt 5 has a bolt shaft portion 51 extending in the left-right direction, and is screwed into the plate nut 6 through the washer 53. As the rotation progresses and is pushed by the head 52 of the bolt 5, the pair of contact / detachment pieces 21R and 21L are brought close to each other, and these contact / detachment pieces 21R and 21L approach each other. As a result, the upper C-shaped holding portion 20A and the lower C-shaped holding portion 20B that are continuous with the contacting and separating pieces 21R and 21L sandwich and tighten the battery post 102.

As shown in FIG. 4, the device connection portion 3 is held by a part of the upper wall 2A being bent toward the lower wall 2B and the stud bolt 30 being sandwiched between the upper wall 2A and the lower wall 2B. It is configured. The stud bolt 30 is connected to various loads via, for example, a fuse unit, so that the electric power of the battery 100 is supplied to various loads via the device connection portion 3 (battery terminal 1). It has become.

Subsequently, a procedure for connecting the battery terminal 1 to the battery post 102 will be described with reference to FIGS. 5 and 6.

First, as shown in FIG. 5, the upper insertion portion 21A and the lower insertion portion 21B of the C-shaped holding portion 20 are brought close to the battery post 102 and inserted. The upper peripheral wall portion 23A and the lower peripheral wall portion 23B are stably installed by being arranged so as to face the peripheral surface of the battery post 102.

Next, the head portion 52 of the bolt 5 is opposed to the right R of the contact / detachment piece 21R via the washer 53, the screwed portion 62 of the plate nut 6 is inserted into the contact / detachment piece 21L, and the plate nut body 61 is inserted. The bolt 5 of the operating mechanism 4 is rotated in a state of facing the left side of the contact piece 21L (initial state before tightening). As the rotation of the bolt 5 progresses, the washer 53 and the plate nut main body 61 come into contact with the lower end edges 27a of the contacting pieces 21R and 21L. Further rotation progresses, and the pair of contacting and separating pieces 21R and 21L are brought close to each other, and these contacting and separating pieces 21R and 21L approach each other, so that the upper C-shaped holding portion 20A and the upper C-shaped holding portion 20A and 21L continuous with the contacting and separating pieces 21R and 21L are brought close to each other. The lower C-shaped holding portion 20B sandwiches and tightens the battery post 102.

Here, in the initial state before tightening, as shown in FIG. 6A, the upper C-shaped holding portion 20A and the lower C-shaped holding portion 20B are at the same position in the left-right direction, but the bolt 5 is rotated. At that time, the washer 53 and the plate nut body 61 are pressed against the lower end edges 27a of the contact pieces 21R and 21L before the upper end edges 26a, as shown in FIG. 6B. The lower continuous wall 27 is greatly pushed against the upper continuous wall 26 (F1> F2), and the lower C-shaped holding portion 20B is largely displaced with respect to the upper C-shaped holding portion 20A (L1> L2). .. As a result, the upper C-shaped holding portion 20A abuts on the peripheral surface of the battery post 102, the lower C-shaped holding portion 20B bites into the peripheral surface of the battery post 102, and the upper C-shaped holding portion 20A and the lower C-shaped holding portion 20A are held. The tightening of the battery post 102 by the portion 20B is completed (tightened state).

It may be difficult for the operator to determine that the tightening by the operation mechanism 4 is completed, but when the upper C-shaped holding portion 20A comes into contact with the battery post 102, the battery of the lower C-shaped holding portion 20B is used. Since the degree of contact with the post 102 is more than that (to the extent that it bites into the battery post 102), the operator can determine that the tightening is completed. That is, the battery post 102 is tightened to an appropriate position by the operation mechanism 4, so that the holding force to the battery post 102 can be improved. In this way, the battery terminal 1 is electrically and mechanically connected to the battery post 102.

According to the above-described embodiment, the first displacement amount of the upper continuous wall 26 (second facing portion) from the initial state before tightening to the tightening state in which the battery post 102 is tightened by the operation mechanism 4 (operation unit). Is configured to be larger than the second displacement amount of the lower continuous wall 27 (first facing portion). According to this, in the tightened state, the lower C-shaped holding portion 20B continuous with the lower continuous wall 27 is brought closer to the battery post 102 than the upper C-shaped holding portion 20A continuous with the upper continuous wall 26, and is on the lower side. The C-shaped holding portion 20B tightens the battery post 102 more strongly than the upper C-shaped holding portion 20A (F1> F2). Here, it may be difficult for the operator to determine the completion of tightening by the operation mechanism 4, but when the upper C-shaped pinching portion 20A (second pinching portion) comes into contact with the battery post 102, the lower side C Since the degree of contact of the character holding portion 20B (first holding portion) with the battery post 102 is more than that, the operator can determine that the tightening is completed. That is, by tightening the battery post 102 to an appropriate position by the operation mechanism 4, it is possible to improve the holding force to the battery post 102.

The battery post 102 of the present embodiment is formed in a columnar shape in which the diameter dimension decreases toward the tip end. For example, assuming that the battery post has a columnar shape having the same outer diameter at the upper end and the lower end. However, it is possible to improve the holding power to the battery post.

Further, in the initial state, the lower end edge 27a (first outer edge) separated from the lower continuous wall 27 (first facing portion) is the upper end edge 26a (second outer edge) separated from the upper continuous wall 26 (second facing portion). ) It is provided outside. According to this, a configuration is realized in which the lower C-shaped holding portion 20B tightens the battery post 102 more strongly than the upper C-shaped holding portion 20A.

Further, a connecting wall 28 (connecting portion) for connecting the lower continuous wall 27 (first facing portion) and the upper continuous wall 26 (second facing portion) is provided, and the connecting wall 28 has a lower end edge 27a (first outer edge). ) Is provided with an oblique end edge 28a (oblique portion) extending diagonally from the upper end edge 26a (second outer edge). According to this, a configuration is realized in which the lower C-shaped holding portion 20B tightens the battery post 102 more strongly than the upper C-shaped holding portion 20A.

The present invention is not limited to the above embodiment, but includes other configurations and the like that can achieve the object of the present invention, and the present invention also includes modifications and the like as shown below.

In the above embodiment, in each of the contacting and separating pieces 21R and 21L, the upper end edge 26a of the upper continuous wall 26 is located outside the lower end edge 27a of the lower continuous wall 27, and the connecting wall 28 (connecting portion) is the upper continuous. The present invention has a diagonal end edge 28a (oblique portion) continuous with the upper end edge 26a of the wall 26 and the lower end edge 27a of the lower continuous wall 27, but the present invention is not limited thereto. As shown in FIG. 7, the connecting wall 128 in the battery terminal 10 extends above the lower end edge 27a of the lower continuous wall 27 and corresponds to the abutting portion 128a that abuts on the operating portion 4 (operating mechanism). It may be configured to have an extending portion 128b that is continuous above the tangent portion 128a and that is continuous with the upper end edge 26a of the upper continuous wall 26 by cutting out the end edge of the connecting wall 28. According to this, the same effect as that of the above-described embodiment is obtained.

Further, in the above embodiment, the washer 53 and the plate nut 6 (nut) are configured so that the thickness in the tightening direction is constant, but the present invention is not limited thereto. As shown in FIG. 8, at least one of the washer 53 and the plate nut 6 may be configured to have different thicknesses in the tightening direction. For example, the washer 53 has a first thickness portion 43A and a second thickness portion 43B so that the thickness of the first thickness portion 43A in the tightening direction is larger than the thickness of the second thickness portion 43B in the tightening direction. If the washer 53 is formed in the above direction, the bolt 5 may be rotated while the first thickness portion 43A of the washer 53 is positioned below the second thickness portion 43B. Further, in the plate nut 6, the plate nut main body 61 has a first thickness portion 61A and a second thickness portion 61B, and the thickness of the first thickness portion 43A in the tightening direction is the tightening of the second thickness portion 43B. When the thickness is formed to be larger than the thickness in the direction, the bolt 5 may be rotated with the first thickness portion 61A of the plate nut body 61 positioned below the second thickness portion 61B. good. In this case, the connecting wall 228 (connecting portion) may be configured so as to extend vertically between the upper end edge 228a and the lower end edge 228b. According to this, the same effect as that of the above-described embodiment is obtained.

In addition, the best configuration, method, and the like for carrying out the present invention are disclosed in the above description, but the present invention is not limited thereto. That is, the present invention is mainly illustrated and described with respect to a particular embodiment, but without departing from the scope of the technical idea and object of the present invention, the shape with respect to the above-described embodiment. Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations. Therefore, the description limiting the shapes, materials, etc. disclosed above is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. Therefore, those shapes, materials, etc. The description by the name of the member excluding a part or all of the limitation such as is included in the present invention.

1, 10, 11 Battery terminal 20A Upper C-shaped holding part (second holding part)
20B Lower C-shaped pinching part (first pinching part)
26 Upper continuous wall (second facing part)
26a Upper edge (second outer edge)
27 Lower continuous wall (first facing part)
27a Lower edge (first outer edge)
28, 128 Connecting wall (connecting part)
28a Diagonal edge (diagonal part)
4 Operation mechanism (operation unit)
101 Battery body 101a Top surface of battery body 102 Battery post

Claims (3)

A battery terminal that is connected to a battery post that protrudes from the top surface of the battery body.
A C-shaped first holding portion that sandwiches the battery post, and a pair of first facing portions that are continuous at both ends of the first holding portion.
A pair of C-shaped second holding portions that are provided so as to face the first holding portion in the direction in which the battery post protrudes and sandwich the battery post, and a pair that are continuous at both ends of the second holding portion. The second facing part and
It has a pair of first facing portions and an operating portion for tightening the battery post by bringing the pair of second facing portions close to each other.
The first displacement amount of the first facing portion from the initial state before tightening to the tightening state in which the battery post is tightened by the operating portion is larger than the second displacement amount of the second facing portion. Battery terminal. In the initial state, the first outer edge on the side separated from each other in the pair of first facing portions is located outside the second outer edge on the side separated from each other in the pair of second facing portions. The battery terminal according to claim 1. A connecting portion for connecting the first facing portion and the second facing portion is provided.
The battery terminal according to claim 2, wherein the connecting portion is provided with an oblique portion that extends obliquely from the first outer edge toward the second outer edge.

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