JP3405612B2 - Connector for electrolytic cell - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a stretchable connector for an electrolytic cell.

[0002]

2. Description of the Related Art As shown in FIG. 8, an ion-exchange membrane electrolytic cell, particularly a single-electrode electrolytic cell, has a large number of anode chamber frames 31 and cathode chamber frames 32 alternately with an ion-exchange membrane (not shown) interposed therebetween. It will be arranged. The anode chamber frame 31 has its eco-raising bar 31 a connected to the bus bar 34 via a flexible connector 33, and the cathode chamber frame 32 has an eco-raising bar (not shown) on the opposite side thereof formed of a flexible connector similar to the flexible connector 33. It is connected to another bus bar on the other side. The flexible connector 33 is formed by laminating flexible conductive thin plates to form an L-shape.

When a direct current is supplied from the bus bar 34, a current flows from the flexible connector 33 and the eco-raising bar 31a to the anode chamber frame 31, and further from the anode chamber frame 31 to the cathode chamber frame 32 through the operation of the electrolytic cell. Flows from the cathode chamber frame 32 through the eco-raising bar and the flexible connector to another bus bar on the opposite side.

When the busbars are arranged horizontally as shown in FIG. 8, a large space is required around the electrolytic cell. Therefore, some electrolytic cells have a structure in which the busbars are arranged vertically instead of horizontally. In this case, as shown in FIG. 9, the vertically arranged bus bar 36 and the eco-raising bar 31a are connected using the connecting member 35.

[0005]

However, when the anode chamber frame and the cathode chamber frame forming the electrolytic cell are alternately arranged through the ion exchange membrane, the side portions of the chamber frames should be aligned. Since it is difficult, the eco-raising bar 31a does not line up in a straight line (like the dotted line D).
The distance E between 1a and the bus bar 36 differs depending on each eco-raising bar, and a variation of, for example, about 4 mm at maximum occurs.
The connecting member 35 is first attached to the eco-raising bar 31a by, for example, bolting, and then the bus bar 36 is attached to the connecting member 35 by bolting, so that the distance E can be finely adjusted so that the bus bar 36 can be arranged linearly. Connect each connecting member 35 to each eco-raising bar 3
It had to be attached and fixed to 1a, and this attachment work was very troublesome and the workability was extremely poor.

It is an object of the present invention to provide a stretchable connector for an electrolytic cell, which can be simply connected without fine adjustment even if the distance between parts or members to which the electrolytic cell is attached is different.

[0007]

In the electrolytic cell connector of the present invention, the cross-section formed by laminating flexible conductive thin plates has a substantially circular or substantially U-shaped vertical shape. Has been done. The substantially circular shape includes an elliptical shape, and the substantially U-shape includes a U-shape, a U-shape, and a shape in which the lateral sides of the U-shape project in a triangular shape.

In a cylindrical electrolytic cell connector having a substantially circular cross section, concentric circular flexible thin plates may be laminated, or a single flexible thin plate may be spirally wound to form a circular or elliptical shape. It may be shaped. For example, a copper plate is used as the flexible conductive thin plate. Since the electrolytic cell connector is formed by laminating flexible conductive thin plates, it has flexibility, and it is compressed when pressed and elongated when pulled, and the force required for it is very small.

Each thin plate forming a vertically long laminate having a substantially circular or substantially U-shaped cross section can be welded, crimped, or the like at one place or at a plurality of places so as not to extend over the entire length in the vertical direction. It is fixed. As the fixing point, for example, a position corresponding to the vertical side surfaces facing each other, which are the mounting points of the electrolytic cell connector, can be considered.

Further, in order to improve the contact property with the mounting portion or the mounting member, a terminal composed of a plate is arranged in the electrolytic cell connector. That is, a front terminal made of a vertically long conductive plate body and a rear terminal made of a vertically long conductive plate body arranged substantially in parallel with the front terminal are provided, and the front terminal and the rear terminal are flexible. They are connected by a vertically long connecting member formed by stacking conductive thin plates.

Both the front terminal and the rear terminal may be arranged over the entire length of the electrolytic cell connector in the vertical direction, or either one may be short. Further, both terminals may not be continuous, but may be arranged intermittently with a gap in between. A conductive plate such as a copper plate is used for both terminals. Each terminal may be provided with a hole or the like for passing a bolt for attaching to the attachment portion or attachment member.

The connecting member formed by laminating flexible conductive thin plates and the front terminal and the rear terminal are connected by welding or the like. Further, the electrolytic cell connector and the eco-raising bar and bus bar are fixed by bolts or welding.

Since the electrolytic cell connector of the present invention is flexible and expandable and contractible, it can be appropriately connected even if the distance to the electrically connected portion or member is not constant. Moreover, since it is vertically long, a wide contact surface can be obtained and it can be used in various places of the electrolytic cell. In particular, it is suitable for connecting the eco-raising bars at the ends of the anode chamber frame and the cathode chamber frame, which are difficult to arrange side by side, and the bus bars arranged laterally to the eco-raising bar.

[0014]

Operation: One terminal of the vertically elongated electrolytic cell connector is attached to one attachment portion or attachment member of the electrolytic cell, and the other terminal opposite thereto is attached to the other attachment portion or attachment member of the electrolytic cell. Since the electrolytic cell connector is flexible and has elasticity, it can be attached even if the distance between both attachment portions or attachment members is different.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, an electrolyzer connector (hereinafter simply referred to as a connector) 1 is vertically long and has an elliptical cross section. The front terminal 2, the rear terminal 3, and the left and right connecting the front terminal 2 and the rear terminal 3 are connected to each other. The connecting member 4 of FIG. The front terminal 2 and the rear terminal 3 are made of thick copper plates, and the rear terminal 3 extends over the entire length of the connector 1, but the front terminal 2 is shorter than the rear terminal 3, and a space 5 is provided above and below the front terminal 2 of the connector 1. It is provided. Using this space, the rear terminal 3 is attached to the eco-raising bar with bolts.
The front terminal 2 is provided with a plurality of mounting holes 6,
The rear terminal 3 is also provided with a mounting hole 7 at a position corresponding to the space 5.

The connecting member 4 is formed by laminating a plurality of thin flexible copper plates and the like, and the connecting member 4 and the front terminal 2 and the rear terminal 3 are preferably welded by welding. Since the connecting member 4 is a flexible laminate, when the front terminal 2 is pushed toward the rear terminal 3, the connector 1 reduces the thickness C between the front terminal 2 and the rear terminal 3, and conversely the front terminal. When 2 is pulled away from the rear terminal 3, the thickness C increases.

The connector 1 of the embodiment has a length of 7 in the vertical direction.
It has a width B of 9 cm and a thickness C of 6 cm. The front terminal 2 and the rear terminal 3 are each made of a copper plate having a thickness of about 12 mm, and the connecting member 4 has a thickness of about 0.
It is formed by stacking 17 3 mm copper plates. The size, size, number of sheets, etc. are not limited to these.
It can be changed according to the conditions of the place where it is used.

The connector 1 is attached to an eco-raising bar 11 of a chamber frame 10 which constitutes an electrolytic cell as shown in FIG. To mount the connector 1, first, a bolt 12 such as a hexagon socket head cap screw is used to screw into a screw hole (not shown) of the eco-raising bar 11 using the hole 7 of the rear terminal 3. As a result, the rear terminal 3 comes into surface contact with the eco-raising bar 11 over the entire rear surface thereof, and a uniform contact surface pressure and a uniform current distribution can be obtained. A pad plate 13 and a washer 14 are arranged between the bolt 12 and the rear terminal 3 so as to protect the rear terminal 3 and obtain a uniform contact surface pressure as shown in FIG.

In this way, for example, two bus bars 15 arranged laterally as shown in FIG. 3 are attached to the connector 1 attached to the eco-raising bar 11. The mounting is carried out by using the holes 6 of the front terminal 2 with the bolts 16, and the bolts 16 are screwed into the screw holes (not shown) of the plate nut 17 arranged behind the front terminal 2 as shown in FIG. It is fixed by screwing. Thus, the connector 1 is arranged between the eco-raising bar and the bus bar of the chamber frame to electrically connect the two.

The bus bar arranged laterally with respect to the chamber frame is used, for example, as shown in FIG. FIG. 6 shows a single-pole electrolytic cell in which a plurality of anode chamber frames 18 and cathode chamber frames 19 are alternately arranged with a plurality of ion-exchange membranes interposed therebetween, and three blocks 20a to 20c are arranged with an insulating plate 21 interposed therebetween. In the triple tank, bus bars (also referred to as transition bus bars in this case) 15a and 15b are arranged to connect the chamber frames between adjacent blocks. Reference numerals 22 and 23 are conventional L-shaped flexible connectors. The flexible connector 22 is an eco-raising bar 18a of each anode chamber frame 18 of the block 20a.
And the flexible connector 23 is connected to the block 20.
It is connected to the eco-raising bar 19a of each cathode chamber frame 19 of c.

When a direct current is supplied, the current is supplied from the flexible connector 22 to the anode chamber frame 18, the cathode chamber frame 19, the bus bar 15a of the block 20a, the anode chamber frame 18, the cathode chamber frame 19, the bus bar 15b of the block 20b, and further. It flows with the anode chamber frame 18, the cathode chamber frame 19, and the flexible connector 23 of the block 20c.

The connector 1 is disposed between the eco-raising bar of the anode chamber frame 18 or the cathode chamber frame 19 and the linear bus bars 15a and 15b (the bus bars are fixed at appropriate positions). Ideally, both sides of the anode chamber frame 18 and the cathode chamber frame 19 that form each block are aligned in a straight line at the time of installation, but in reality, they are somewhat uneven as shown in FIG. The distance between the eco-raising bar of the cathode element 19 and the bus bars 15a and 15b is not constant. However, since the connector 1 has flexibility, even if the arrangement of the eco-raising bars is somewhat uneven, it absorbs the difference in the distances, so that it can be connected to the bus bars arranged in a straight line.

FIG. 7 shows a connector having a U-shaped cross section. The connector 25 includes a front terminal 26, a rear terminal 27, and a connecting member 28, and the material and structure are the same as those of the connector 1 described above.

[0024]

EFFECTS OF THE INVENTION The electrolytic cell connector of the present invention is a vertically long laminate having a substantially circular or U-shaped cross section formed by laminating flexible conductive thin plates. It is rich, and even if there is a slight difference in distance between each mounting portion or mounting member, the difference can be absorbed, and therefore it is not necessary to finely adjust it one by one, and mounting is extremely simple.

Further, the electrolytic cell connector comprises a rear terminal made of a vertically long conductive plate body and a front terminal made of a vertically long conductive plate body arranged so as to face the rear terminal in a substantially parallel manner. Since the rear terminal and the front terminal are connected by a vertically long connecting member formed by laminating flexible conductive thin plates, a wide contact area can be obtained between the attaching portion and the attaching member, and Even if the distance between the mounting portion and the mounting member is slightly different, a uniform contact surface pressure and a uniform current distribution can be obtained.

In particular, the electrolytic cell connector of the present invention comprises an eco-raising bar vertically arranged on the side of each chamber frame forming the electro-chemical cell, and a bus bar extending laterally with respect to the eco-raising bar. Is suitable for electrically connecting, and even if the distance between each eco-raising bar and bus bar is not constant, the difference in the distance can be absorbed,
It can be connected to a straight bus bar without fine adjustment, and the workability during assembly of the electrolytic cell is extremely good.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of an electrolytic cell connector of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a view showing a use state of the electrolytic cell connector.

FIG. 4 is a view showing a mounting state of a rear terminal and an eco-raising bar.

FIG. 5 is a view showing a mounting state of a front terminal and a bus bar.

FIG. 6 is a plan view showing a monopolar electrolytic cell to which a bus bar is attached using an electrolytic cell connector.

FIG. 7 is a cross-sectional view of the electrolytic cell connector having a U-shaped cross section.

FIG. 8 is a perspective view of a part of an electrolytic cell showing a conventional connecting method between an eco-raising bar and a bus bar.

FIG. 9 is a plan view of a part of an electrolytic cell showing another conventional connection method between an eco-raising bar and a bus bar.

[Explanation of symbols]

1 Electrolyzer connector 2 front terminal 3 rear terminals 4 connecting members 5 spaces 6 holes 7 holes 10 room frame 11 Eco Rising Bar 12 volt 13 Reliable plate 14 washers 15 Busbar 15a, 15b Bus bar 16 volts 17 Plate nut 18 Anode chamber frame 18a Eco Rising Bar 19 cathode chamber frame 19a Eco Rising Bar 20a to 20c blocks 21 Insulation plate 22 Flexible connector 23 Flexible connector 25 Electrolyzer Connector 26 front terminal 27 Rear terminal 28 Connection member

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-53-115671 (JP, A) JP-A-53-115669 (JP, A) JP-A-50-71580 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) C25B 1/00-15/08

Claims (2)

(57) [Claims] 1. A rear terminal comprising a vertically long conductive plate body, and a front terminal made up of a vertically long conductive plate body which are arranged substantially parallel to each other so as to face the rear terminal. A vertically-long electrolytic cell connector having a substantially circular or U-shaped cross section, which is formed by connecting a terminal with a vertically-long connecting member formed by laminating flexible conductive thin plates. 2. An eco-raising bar arranged in a vertical direction at an end portion of a chamber frame forming an electrolytic cell and a bus bar arranged laterally with respect to the eco-raising bar. The electrolytic cell connector described in.