JPH04286857A - Storage battery - Google Patents

Abstract

PURPOSE:To easily dismantle a cover and an electrolytic bath by connecting an external terminal and each electrode each other through a flexible conductive wire in the way of being able to be detached freely in the electrode side, installing a flange facing outside in the electrolytic bath, bringing its upper face and the flange down face of a cover into contact each other through a packing, and fastening them with fastening metal fitting. CONSTITUTION:A storage battery is composed of an upside opened box-like electrolytic bath 1 and a cover 12 to shut the bath. A ceiling board 12a and a side wall 12b are formed in the cover 12 and a flange 12c facing outside is formed in the lower fringe periphery of the side wall 12b. External terminals 12d, 12e for an anode and a cathode are installed and penetrated into the ceiling board 12a and a flange 11a facing outside is formed in the upper fringe periphery of the electrolytic bath 11. A groove 11b in which a packing 13 is fixed is grooved in the whole circumference of the upper face of the flange 11a and the down face of the flange 12c is brought into contact with the upper face of the flange 11a through the packing 13 to shut the electrolytic bath 11 with the cover 12. In this way, the electrolytic bath 11 is shut air-tightly with the cover 12. When the cover 12 and the electrolytic bath 11 are dismantled, simply the fastening metal fittings are loosened.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage battery, and particularly to one having a structure in which the lid and battery case can be easily disassembled and the lid, battery case, and electrode plates can be reused.

0002

2. Description of the Related Art FIG. 6 is a partially cutaway side view briefly showing a conventional general storage battery. In the figure, 1 is a battery case, 2
is the lid. The battery case 1 and the lid 2 are joined by adhesive or welding at their abutting portions. The lid 2 is provided with an external terminal 2a. 1a is a partition wall that partitions the inside of the battery case 1;
Here, the battery case 1 is partitioned into four chambers. Each chamber 1b accommodates an electrode plate group having six positive electrode plates and seven negative electrode plates 3. In FIG. 6, the negative electrode plate 3 is visible. Each room 1
In b, the lead terminals 3a of each negative electrode plate 3 are soldered together. The same applies to the positive electrode plate. And the gathered lead terminals 3a are the wiring terminals 2b
The wiring terminal 2b is connected to the external terminal 2a via the wiring 2d.

0003

[Problems to be solved by the invention]In recent years, there has been increasing interest in resource recycling in the industrial world.For example, in the automobile industry, there has been an increase in
Research and development of assembly methods and technology for reusing plastics, etc. are being carried out. The development of such technology is also desired in the battery industry.

However, in the above-mentioned conventional storage battery, the battery case 1 and the lid 2 are joined by adhesive or welding, so in order to disassemble the battery, the joint must be crushed. However, it was difficult to reuse the electrode plates. Moreover, since the wiring 2d connected to the external terminal 2a and the wiring terminal 2b are firmly connected and fixed by soldering, the battery case 1
It was difficult to remove the lid 2 from the container. In this way, in the above-mentioned conventional storage battery, the battery case 1 and the lid 2 are disassembled and the battery case 1 is removed.
, it was difficult to reuse the lid 2 and the electrode plate.

[0005] It is an object of the present invention to provide a storage battery in which the lid and the battery case can be easily disassembled, and the lid, the battery case, and the electrode plates can be reused.

[0006]

[Means for Solving the Problems] The storage battery of the present invention is a box that is open at the top and has a container that houses a group of electrode plates, and an external terminal that closes the container from above and allows electricity to be taken out. In a storage battery equipped with a lid provided with The upper surface of the flange and the lower surface of the periphery of the lid are brought into contact with each other via a packing, and the periphery of the lid and the flange are sandwiched so as to be in pressure contact with each other by a removable fastening fitting. be.

[0007]

[Operation] To disassemble the lid and battery case, loosen and remove the fastening fittings, lift the lid slightly and disconnect the flexible conductive wire and the electrode plate. The lid can be easily removed from the battery case by simply removing the clamp. Further, the connection between the flexible conductive wire and the electrode plate can be easily disconnected while the lid is slightly lifted.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. FIG. 1 is a cross-sectional side view showing the storage battery of the present invention. In the figure, 11 is a box-shaped battery case with an open top, and 12 is a battery case 1.
It is a lid that closes 1 from above. The lid 12 includes a top plate 12a, a peripheral wall 12b, and a flange 12c formed outward at the lower edge of the peripheral wall 12b. An external terminal 12d for a negative electrode and an external terminal 12e for a positive electrode are provided penetrating through the top plate 12a. An outward flange 11a is formed on the upper edge of the battery case 11, and a groove 11b into which the packing 13 fits is formed around the entire periphery of the upper surface of the flange 11a. The battery case 11 is closed by a lid 12 with the lower surface of the flange 12c in contact with the upper surface of the flange 11a via the packing 13.

[0009] The flange 12c and the flange 11a are pressed together by a fastening fitting 21. The tightening fitting 21 is a band having a V-shaped cross section and is slightly elastic.
As shown in the figure, it has a shape that surrounds the entire periphery of both flanges 12c and 11a. The tightening fitting 21 has tightening portions 21 at both ends.
By tightening the screw 21b with the screw 21b, the V-shape is pressed open in the direction of the arrow A in FIG. 1, thereby bringing the flange 12c and the flange 11a into pressure contact. By press-contacting the flange 12c and the flange 11a through the packing 13 in this way, the battery case 11 is hermetically closed with the lid 12.

[0010] Inside the battery case 11, a group of electrode plates is housed. Here, four electrode plate groups are housed in the battery case 11 in a state where they are each housed in a plastic bag 31. One electrode plate group here has seven negative electrode plates and six positive electrode plates, and as shown in FIG. 3, which is a schematic diagram seen from above, a negative electrode plate 41, a retainer 42, and a separator 43. , retainer 4
2. The positive electrode plate 44 is arranged in this order. Note that the separator 43 and the retainer 42 are provided so as to meander between the negative electrode plate 41 and the positive electrode plate 44. The four electrode plate groups are pressurized by a spacer 32 so that the electrode plates are brought into pressure contact with each other in the battery case 11. The spacer 32 is a flat plate with a wedge-shaped cross section, and the electrode plate group is the spacer 3
Pressure is applied by inserting an arbitrary number of electrode plates 2 between the wall of the battery case 11 and the electrode plate group.

In each electrode plate group, all lead terminals of the positive electrode plate 44 and all lead terminals of the negative electrode plate 41 are connected to external terminals via one connector 33 and a flexible conductive wire 34, respectively. Note that in FIG. 1, the lead terminal 41a of the negative electrode plate 41 is visible. Further, as shown in FIG. 3, the lead terminals 41a of the negative electrode plate 41 and the lead terminals 44a of the positive electrode plate 44 are arranged on opposite sides. For example, as shown in FIG. 4, the connector 33 for the negative electrode plate 41 has a structure in which seven holes 33b are formed in a resin plate 33a, and a lead terminal 41a formed in a rod shape in each hole 33b. By inserting the negative electrode plate 41 and the connector 33, the negative electrode plate 41 and the connector 33 are connected. Note that hole 3
3b has a structure that holds the inserted lead terminal 41a and allows the lead terminal 41a to be pulled out by applying a slight force. Plate 3 of connector 33
3a is connected to one end of a flexible conductive wire 34, and each hole 33b and the flexible conductive wire 34 are electrically connected. The flexible conductive wire 34 has a braided structure and is covered with a vinyl tube.

[0012] In the storage battery having such a configuration, the lid 12
To disassemble the battery case 11, loosen and remove the fastener 21, lift the lid 12 slightly, and disconnect the connector 33 and the lead terminal. The tightening fitting 21 is a screw 21b
It can be easily loosened and removed by simply loosening the . Lid 12
can be easily removed from the battery case 11 by simply removing the fastening fittings 21. The connection between the connector 33 and the lead terminal can be easily disconnected by simply lifting the lid 12 slightly, inserting your hand or a tool such as a screwdriver, and applying a slight force in the direction of lifting the connector 33. . In this way, the lid 12 and the battery case 11 can be easily disassembled.

Moreover, the lid 12 can be removed from the battery case 11 without breaking the abutting portion between the battery case 11 and the lid 12. Furthermore, the electrode plate group can be easily removed from the battery case 11 together with the plastic bag 31 by pulling out the spacer 32 and releasing the pressure. Therefore, both the battery case 11 and the lid 12 can be reused, and if the electrode plate group is taken out from the plastic bag 31 and disassembled, the electrode plate group can also be reused. Moreover, since leakage of the electrolyte is reliably prevented by the plastic bag 31, the inside of the battery case 11 is not contaminated, and since there is no partition wall in the battery case 11, the use of reuse for other surfaces is also expanded.

Note that the external terminal and the electrode plate may be connected by a structure as shown in FIG. That is, the flexible conductive wire 3
An ear portion 35 having a hole 35a is fixed to one end of the electrode plate, and a plate-shaped lead terminal 45 having a hole 45a is provided on the electrode plate. They are connected by passing screws 46 through 35a and 45a and tightening them.

[0015]

As described above, according to the present invention, the external terminal and each electrode plate are removably connected at least on the electrode plate side via the flexible conductive wire 34, and the upper peripheral portion of the battery case 11 is An outward flange 11a is provided on the flange 11a, the upper surface of the flange 11a and the lower surface of the periphery of the lid 12 (flange 12c) are brought into contact with each other via the packing 13, and the periphery of the lid (flange 12c) is secured by a removable fastening fitting 21. Since the lid 12 and the flange 11a are clamped together so as to be in pressure contact with each other, in order to disassemble the lid 12 and the battery case 11, loosen and remove the fastening fittings 21, and while lifting the lid 12 a little, remove the flexible conductive wire 34 and the electrode plate. Just disconnect it. Therefore, the lid 12 and the battery case 11 can be easily disassembled, and the lid 12 can be removed from the battery case 11 without crushing the contact portion between the battery case 11 and the lid 12. 11. The lid 12 can be reused,
Furthermore, the electrode plates can be reused.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional side view showing a storage battery of the present invention.

FIG. 2 is a top view showing the fastening fitting.

FIG. 3 is a top view showing the electrode plate group.

FIG. 4 is a perspective view showing a connection structure between a connector and an electrode plate.

FIG. 5 is a perspective view showing another example of a connection structure between a connector and an electrode plate.

FIG. 6 is a partially cutaway side view showing a conventional storage battery.

[Explanation of symbols]

11 Battery case 11a, 12c flange 12 Lid 12d, 12e External terminal 13 Packing 21 Tightening metal fittings 34 Flexible conductive wire 41 Negative electrode plate 44 Positive electrode plate

Claims (1)

[Claims] Claim 1: A storage battery comprising a container which is an open box at the top and accommodates a group of electrode plates, and a lid which covers the container from above and is provided with an external terminal from which electricity can be taken out. , the external terminal and each electrode plate are removably connected at least on the electrode plate side via a flexible conductive wire, an outward flange is provided around the upper edge of the battery case, and the upper surface of the flange is connected to the outer edge of the lid. A storage battery characterized in that the lower surface is brought into contact with the flange via a packing, and the peripheral edge of the lid and the flange are sandwiched so as to be in pressure contact with each other by a removable fastening fitting.