JPH09190811A - Battery pole pole terminal connecting device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: Stable and robust by increasing the contact area to be crimped to each terminal when fixedly connecting the opposing negative and positive pole terminals of adjacent storage batteries. Provided is a device for connecting terminals, which is capable of connecting between pole terminals. SOLUTION: Through holes 2 and 2 for fitting the negative and positive pole terminals N and P are provided at both ends of a conductive connecting rod body 1, and these through holes 2 and 2 are communicated to an intermediate portion thereof. And a bolt insertion hole 7 in the front side wall 5 and the rear side wall 6 facing each other through the longitudinal intermediate opening 3 in the middle of the longitudinal intermediate opening 3 and the front and rear wall surfaces 4, 4 ′ of the main body 1. Longitudinal annular connecting rod 8
And a bolt 9 and a nut 10 which are inserted into the bolt insertion hole 7.
Consisting of

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for connecting pole post terminals of a storage battery.

[0002]

2. Description of the Related Art A conventional connecting device for connecting a negative electrode and a positive pole terminal of a storage battery is known in which both ends of a connecting rod are directly fixed to the negative and positive pole terminal by bolts and nuts. That is, for example, in the inter-terminal connecting device shown in FIG. 9, a connecting rod A made of a long rectangular metal plate having holes a through which bolts are inserted at both ends, and bolts B to be inserted into these holes a and a.
And a nut C screwed to the pole pillar terminal P to connect the mutually opposite polar pole terminals P and N of the adjacent storage batteries D and D to each other. , N are cut in advance into a plate shape having a flat surface so that both ends of the connecting rod A can come into contact with each other, and holes for inserting bolts are formed in advance. Then, the connection work is performed as follows.
That is, both ends of the connecting rod A are brought into contact with the flat plate portions of the pole terminals P and N so that the respective bolt insertion holes are aligned with each other, and the bolt B is inserted in this state, and the insertion end is inserted into the insertion end. A nut is applied and tightened to complete the connection between both terminals P and N. As shown in FIG. 10, another pole-pole terminal connecting device comprises a connecting cable E having annular thin tabs e, e at both ends, and a bolt B. In order to connect the mutually opposite polar pole terminals P and N of the mutually adjacent storage batteries D and D by using this, the pole pole terminals P and N are respectively inserted with bolts having openings on their top surfaces. A deep screw hole F for use is provided in advance. In connection with the connection, the annular tabs e, e at both ends of the connection cable E are connected to the bipolar pole terminals P,
The top surface of N is aligned with the spiral hole F, and from this state, bolts B and B are screwed into the spiral holes F and F, respectively, and the heads of the bolts are applied to the upper surfaces of the tabs e and e. The connection is completed by contacting and tightening.

[0003]

The above-mentioned pole pole terminal connecting device not only requires processing for connecting the pole pole terminals P and N, but the connecting rods and connecting cables are
Since the area of direct contact with the pole terminal is relatively small,
The electrical connection between the pole terminals tends to be insufficient, which is disadvantageous in that a large amount of current can be rapidly extracted. Further, in this case, in order to prevent the nut from loosening due to vibration or impact, when the loosening preventive agent is applied to the threaded portion, the contact with the pole is impeded accordingly. Therefore, such a problem is solved, the processing for connecting the bipolar pole terminals is not required, the connecting work is simple, and the contact area with the connecting rod can be remarkably increased. It is desired to develop a device for connecting pole pole terminals of a storage battery that can maintain good electrical connection regardless of the application.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and provides a pole-pole terminal connecting device for a storage battery which satisfies the above-mentioned demands. A circular through hole into which the negative and positive pole terminals are fitted at both ends of the conductive connecting rod body that is long enough to connect between polar pole terminals At least one bolt insertion hole is bored through the intermediate opening and the intermediate portion of the front and rear wall surfaces of the connecting rod body through the front side wall and the rear side wall facing each other through the longitudinal opening. It is characterized in that it comprises a longitudinally annular connecting rod; a bolt inserted into the bolt insertion hole of the connecting rod; and a nut screwed to the insertion end of the bolt.

[0005]

The both ends of the connecting rod in the form of a ring are fitted into the pole terminals of opposite polarities facing each other through the circular through holes, and the bolts are inserted through the bolt insertion holes provided in the middle of the connecting rods. Then
Tighten with a nut on the insertion end. Due to this tightening, the front and rear wall parts come close to each other, and the surrounding wall parts surrounding the through holes at both ends have a small diameter accordingly, and their inner peripheral surface is firmly pressed against the peripheral surface of the pole terminal. It is fixedly connected. In this case, if one of the front and rear ends of the bolt insertion hole is formed as a screw hole, the bolt can be screwed in and tightened without using the nut. When the heights of the surrounding wall portions surrounding the through holes at both ends of the longitudinal annular connecting rod are formed to be equal to the heights of the pole pillar terminals corresponding to the respective surrounding wall portions, the connecting rods are It can be pressed and fixed with the maximum contact area with the pole terminal. Further, when the connecting rod in the form of a ring is formed into half connecting rods that are divided into front and rear with respect to the central axis of the longitudinal direction, the connecting rods are connected to each other from the front and rear of the opposite polarity pole terminals that face each other. Fixing connection work is facilitated by inserting bolts in the middle and tightening and fixing in the state of applying and contacting, even if there is some difference in the diameter of the pole column, good pressure welding fixation with the pole column Is obtained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a conductive prismatic connection made of a metal or the like having a column-shaped shadow facing each other between the adjacent storage batteries D and D shown in FIG. At both ends of the rod body 1, circular through holes 2 and 2 having a diameter that fits the negative and positive pole terminals N and P are vertically provided so as to penetrate between the both through holes 2 and 2. In the illustrated example, a narrow slit-shaped long opening 3 is provided by vertically penetrating through the long intermediate opening 3 communicating with them on the central axis in the longitudinal direction. A front side wall 5 and a rear side wall 6 which are orthogonal to the longitudinal intermediate opening 3 and are opposed to each other through the longitudinal intermediate opening 3 are provided at intermediate portions of the front and rear wall surfaces 4 and 4 ′ of the connecting rod body 1. By forming a bolt insertion hole 7 penetrating therethrough, a longitudinally annular connecting rod 8 is produced. Between the pole rod terminals of the storage battery of the present invention, the long-annular connecting rod 8 thus produced, the bolt 9 for inserting the bolt insertion hole 7 and the nut 10 screwed into the bolt 9 are used. Configure the connecting device. The connecting rod body 1 is generally made of metal, but copper having good conductivity is preferable. In the illustrated example, copper bus bars (Copper Bus Bars) specified in JIS H 3140 were used.

FIG. 2 shows a state in which the cathode and cathode column terminals N and P facing each other of adjacent alkaline storage batteries are connected to each other by using the above-described connecting apparatus for pole column terminals of the present invention. That is, the longitudinal annular connecting rod 8 of the present invention is provided with the circular through holes 2 at both ends thereof.
After slidably fitting 2 to the opposing negative and positive pole terminals N and P, the bolt 9 is inserted into the bolt insertion hole 7 from its one side, and the nut 10 is screwed to the insertion end. tighten.
Due to this tightening force, the front side wall 5 and the rear side wall 6 are brought closer to each other because there is a longitudinal intermediate opening 3 therebetween, and accordingly, the surrounding wall that surrounds the through holes 2 and 2 at both ends thereof. 11 and 11 are fixed in a state of being crimped onto the peripheral surfaces of the columnar pole terminals N and P fitted in the through holes 2 and 2, and a connection having a large contact area can be obtained.
Even if the opposing inner surfaces of the front side wall 5 and the rear side wall 6 come into contact with each other and are in close contact with each other, the tightening force is 100 to 150 Kgf · c.
It is sufficient if the tightening torque is m. Of course, the width dimension of the longitudinal intermediate opening 3 is selected in advance so as to obtain a desired tightening force. 12 in the drawing
Shows a nut provided on the threaded portion of the base of the pole for fastening the lid of the storage battery D to the battery case.

As described above, the device for connecting pole pole terminals of the present invention does not fix the connecting member to the pole pole itself by bolts and nuts as in the prior art, but at a position separate from the pole pole. Since it is tightened and fixed with bolts and nuts, it is not necessary to work on the poles in advance in advance, and not only a simple pole pole is sufficient, but the pole pole is connected on the peripheral surface. A large contact area can be secured between the rod and the pole, and a connection suitable for large current and rapid discharge characteristics can be obtained. Further, even if a loosening preventive agent for preventing the loosening of the bolt and nut due to vibration or impact is applied to the threaded portion, it does not have any adverse effect on good conductivity, which is advantageous.

As shown in FIGS. 1 to 3, the heights of the elongated annular connecting rods 8, that is, the heights of the surrounding walls 11 and 11 surrounding the through holes 2 and 2 at both ends thereof are respectively defined. If the heights of the corresponding pole pillar terminals N and P are formed to be substantially the same, the pole pillar terminals are formed on the entire inner peripheral surfaces of the surrounding walls 11 and 11 by fitting and crimping. This is advantageous because a maximum contact area that contacts the peripheral surfaces of N and P is obtained. Of course, the height of the connecting rod 8 is not limited to this, and it may be higher or lower than the top surfaces of the poles N and P to be fitted.
That is, the height of the connecting rod 8 in the form of a ring is fixed to the fitting portion, that is, the base of each pole pillar terminal, by screwing the lid when fitting the cathode pole terminals N and P. It is preferable that the height is formed to be equal to the height from the upper surface of the working nut 12 to the top surface of the pole terminal so that the fitting nut is crimped to the peripheral surface of the pole terminal with the maximum contact area.

FIG. 4 shows a modification of the longitudinal connecting rod 8 which is a cylindrical connecting rod body instead of the prismatic connecting rod body 1 of FIG. No. 8 is constituted, and its use mode is the same as that of the first embodiment.

FIG. 5 shows still another modification, in which negative and positive pole terminal through holes 2 and 2 are formed at both ends of the connecting rod body 1.
And a width dimension of the longitudinal intermediate opening portion 3 communicating with each other are made the same diameter to form a light weight longitudinal annular connecting rod 8. The longitudinal annular connecting rod 8 is It can be easily processed and manufactured from a circular pipe, and can be mass-produced easily and inexpensively.

FIG. 6 shows the storage battery D, similar to that of the first embodiment described above, due to the longitudinal annular connecting rod of FIG.
It is fitted to the opposite negative and positive pole terminals N and P of D, and its middle portion is tightened with bolts and nuts to surround the surrounding walls 1
The inner peripheral surfaces of 1 and 11 are crimped and fixed over the entire lengths of the pole terminals N and P to be fitted.

FIG. 7 is a longitudinal annular connecting rod 8 shown in FIG.
Is divided in half in the front-back direction with the central axis in the longitudinal direction as the boundary.
In the use of the storage battery D,
The half of the through holes 2 and 2 are respectively applied to the opposite positive and negative pole terminals N and P of D from the front and back sides thereof, and in this state, the bolt 9 is inserted into the bolt insertion hole 7 and the nut is inserted. 1
By tightening at 0, a fixed connection is obtained in which the respective semicircular arc-shaped inner surfaces of the halved through holes 2 and 2 are crimped to the peripheral surfaces of the pole terminals N and P.

FIG. 8 shows a modified example of the connecting rod 8 in the form of a ring shown in FIG. 5, which is longer than that shown in FIG. 5, and the distance between the opposite pole column terminals of opposite polarities of adjacent storage batteries is shown. The present invention is applied to the connection of those apart from those shown in FIG. 6, and the bolt insertion holes 7 are provided in the middle of the connection rod 8 in a pair of left and right at equal intervals to the left and right from the center of the length. Equal tightening force is applied to the surrounding wall portions 11, 11 at both ends by the respective bolts inserted, and the front side wall 5 and the rear side wall 6 having the respective bolt insertion holes 7, 7 are provided. Of these, when the holes of the rear side wall 6 are formed in the screw holes 7'and 7 ', a bolt can be screwed into the screw hole so that a tightening force can be obtained, the use of a nut is abolished, and a simple and inexpensive connection is made. I tried to provide the equipment.

[0015]

EXAMPLES Further, specific examples of the present invention will be described together with conventional examples.

Example 1 JIS H having a width of 20 mm, a length of 80 mm and a height of 20 mm
3140 standard copper bus bar (alloy No. 1020) was made as a material, and nickel was plated on both ends of the connecting rod body made of a prism made of copper.
A cylindrical insertion hole having a cylindrical shape of m and a circular insertion hole into which an anode column terminal is slidably fitted are provided at a pitch of 60 mm, and a slit-shaped long intermediate opening having a width of 2 mm and communicating with these holes is formed between the holes. 1 is provided with a bolt insertion hole having a diameter of 8.2 mm in the center of the connecting rod body, orthogonal to the intermediate opening, penetrating both side walls in front of and behind the intermediate opening. The rod was made. As shown in FIG. 2, a diameter of 10 m, which is provided with a nut for fixing the battery lid having a thickness of 10 mm, which protrudes 30 mm upward from the lid surface of the adjacent alkaline storage battery and has a threaded portion at the base thereof.
m, the positive pole terminal, the insertion hole at both ends of the longitudinal annular connecting rod is fitted to the fitting portion of the height 20 mm protruding upward from the top surface of the nut, and the bolt is inserted into the bolt insertion hole. Insert the nut into the insertion end and put a nut on the insertion end,
By tightening with a tightening torque of gf · cm, the surrounding walls at both ends of the connecting rod were crimped and fixed to the peripheral surface of the pole post terminal, and two storage batteries were connected in series.

EXAMPLE 2 At both ends of a nickel-plated copper columnar body having a diameter of 20 mm shown in FIG. 4, circular insertion holes for slidingly fitting a negative and positive pole terminal having a diameter of 10.2 mm were formed. Provided at intervals of 60 mm, and between these holes a width of 2 mm communicating with these holes
A slit-like long intermediate opening is provided at the center of the length of the connecting rod, and a diameter of 8.2 is obtained by penetrating both the front and rear side walls.
A bolt insertion hole having a diameter of mm was provided, and a longitudinally annular connecting rod of the type shown in FIG. 4 was produced. Using this, the same means as described in Example 1 was used to perform the fitting, tightening, and fixed connection to the opposing negative and positive terminals of the two adjacent storage batteries in FIG.

Example 3 A long copper tube having a thickness of 5 mm was pressed into an oblong shape, and then 2
Width 20 mm, length 80 m obtained by cross cutting with width 0 mm
5 has a long elliptical annular connecting rod body having a length of 20 mm and a height of 20 mm, and is provided with a bolt insertion hole penetrating both the front and rear side walls at the center of the length thereof. Was produced. Thus, the both ends of the oblong space surrounded by the oblong annular wall have a radius of 5.1 mm from the center point.
Of the elliptical space serves as a through hole into which the cathode pole terminal is fitted, and an intermediate portion of the oblong space portion acts as an intermediate opening portion having a width of 10.2 mm for communicating and opening these through holes. Then, using this, by the same means as described in Example 1, a fitting tightening fixation connection was made to the opposing negative and positive terminals of two adjacent storage batteries in FIG.

In the same manner as in Example 1 except that the longitudinally connecting connecting rod made of copper shown in FIG. 7 having the same size and shape as that of FIG. A mating, fastening and fixed connection was made to the opposite negative and positive pole terminals.

Conventional Example A conventional nickel plate-plated copper plate having a width of 10 mm, a length of 80 mm, and a thickness of 10 mm is provided at both ends with shadow and anode column through holes having a diameter of 5.2 mm at a pitch of 60 mm. Using the connecting rod, a cylindrical shade having a diameter of 10 mm facing each other of two conventional adjacent alkaline storage batteries shown in FIG.
A flat plate portion having a bolt insertion hole at the upper end of the anode pillar was pressed and fixedly connected by a bolt nut to connect two storage batteries in series.

Next, the results of measuring the weights of the connecting rods and the electrical resistances between the pole post terminals in Examples 1 to 4 and the conventional example are shown in Table 1 below.

[0022]

[Table 1]

As is apparent from Table 1 above, the electrical resistance between the pole terminals according to the connecting device of the present invention is significantly smaller than that of the conventional connecting device. This is because the contact area of the elongated annular connecting rod of the present invention, which is pressed against the anode pillar, is significantly larger than the conventional contact area. Also, since the tightening with the bolt and nut is sufficient even at one place,
Unlike the conventional case, it is not always necessary to tighten each pole column terminal with a bolt and nut, and the connection rod can be used to fasten and connect the negative and positive pole column terminals easily and quickly.

[0024]

As described above, according to the first aspect of the present invention, the fixed connection between the opposing negative and positive pole terminals of the storage batteries adjacent to each other can be achieved by the conventional apparatus for connecting pole pole terminals. In comparison, the electric resistance between the pole terminals can be remarkably reduced, and the operation can be performed easily and stably. Further, according to the invention of claim 2, it is possible to perform tightening with a bolt without using a nut, and it is possible to provide a connecting device having a small number of constituent members. Further, according to the invention of claim 3, it is possible to maximize the contact area with the negative and positive pole terminals to be connected. Further, according to the invention of claim 4, by connecting the negative and positive pole terminals from the front and the back of the peripheral side surface without fitting the terminals from above, a similar connection between the terminals with reduced electrical resistance is performed. be able to.

[Detailed Description of Drawings]

FIG. 1 is a perspective view of a connecting device between negative and positive pole terminals according to an embodiment of the present invention.

FIG. 2 is a view showing a usage state of the connecting device shown in FIG.

3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a perspective view of a connecting rod having a longitudinal annular shape according to another embodiment of the present invention.

FIG. 5 is a perspective view of a connecting rod having a longitudinal annular shape according to still another embodiment of the present invention.

FIG. 6 is a perspective view of a state in which the longitudinal annular connecting rod of FIG. 5 is used.

FIG. 7 is a perspective view of a longitudinally annular connecting rod according to still another embodiment of the present invention.

FIG. 8 is a perspective view of a longitudinally annular connecting rod according to still another embodiment of the present invention.

FIG. 9 is a perspective view of a conventional example of using a connecting device between a negative and positive pole terminal.

FIG. 10 is a side view showing a state in which a connecting device between negative and positive pole terminals of another conventional example is used.

[Explanation of symbols]

1 Connection Rod Main Body 2 Through Hole 3 Intermediate Opening 4 Front Wall 4'Rear Wall 5 Front Side Wall 6 Rear Side Wall 7 Bolt Insertion Hole 7'Bolt Insertion Hole Screw Hole 8 Long Ring Connection Rod 9 Bolt 10 Nut 11 Surrounding Wall

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tetsuro Nomura, Tetsuro Nomura 23-6, Hakusaku, Joban Shimofunao-cho, Iwaki, Fukushima Prefecture Furukawa Battery Co., Ltd. Iwaki Plant (72) Inventor, Mitsuru Nagano 7 Nakayama, Aoba-ku, Sendai City, Miyagi Prefecture 2-2-1 Tohoku Electric Power Co., Inc. R & D Center (72) Inventor Fumio Sato 7-2-1 Nakayama, Aoba-ku, Sendai City, Miyagi Prefecture Tohoku Electric Power Co., Inc. R & D Center (72) Inventor Ken Koyama Miyagi Prefecture 7-2-1, Nakayama, Aoba-ku, Sendai City, Tohoku Electric Power Co., Inc. Research and Development Center

Claims (4)

[Claims] 1. The negative and positive pole terminals are fitted to both ends of a main body of a conductive connecting rod having a length sufficient to connect between opposite pole pole terminals of different polarities of adjacent storage batteries. A circular through hole, and a longitudinal intermediate opening that communicates the two through holes with each other, and a front side wall and a rear side wall that face the intermediate part of the front and rear wall surfaces of the connecting rod body through the longitudinal opening. A longitudinal annular connecting rod formed by penetrating at least one bolt insertion hole therethrough; a bolt inserted into the bolt insertion hole of the connection rod; and a nut screwed to the insertion end of the bolt. A device for connecting pole pole terminals of a storage battery, comprising: 2. A device for connecting pole post terminals of a storage battery, wherein a bolt insertion hole of at least one of a front side wall and a rear side wall of the longitudinally-shaped connecting rod of claim 1 is formed in a screw hole. 3. A storage battery in which the heights of the surrounding wall portions surrounding the through holes at both ends of the elongated annular connecting rod are formed to be equal to the heights of the corresponding portions of the pole pillar terminals fitted therein. Pole terminal connection device. 4. A device for connecting pole pole terminals of a storage battery, which comprises a half-divided connecting rod that is divided into front and rear portions with respect to a central axis of the longitudinal annular connecting rod.