CN87214036U - Waterproof alkaline battery pack - Google Patents

Abstract

The utility model belongs to the waterproof alkaline group battery is used to ocean. 84 alkaline zinc-manganese battery monomers are connected in parallel and in series to form an alkaline primary battery pack with rated voltage of 18V and rated capacity of 210AH, and the alkaline primary battery pack is arranged in a waterproof hard PVC (hard polyvinyl chloride) sealed cabin with a shell. The positive pole and the negative pole of the battery pack are output electromotive force through the watertight plug by the watertight cable. The remote-measuring buoy system is suitable for a remote-measuring buoy system of hydrological and meteorological data with large power consumption on the ocean, a traffic management buoy system of the ocean and harbors and an unmanned communication station of the island. The upper cover of the sealed cabin is provided with a small hole specially used for applying high-pressure gas to carry out watertight test on the battery pack, so that nondestructive test is realized.

Description

The invention relates to a waterproof alkaline primary battery pack for ocean.

The existing marine waterproof primary battery pack consists of a neutral zinc-manganese dry battery, a plastic shell, a watertight cable and a watertight plug. The battery pack has small capacitance, large internal resistance, small output current and poor low-temperature performance. Meanwhile, since the battery pack is packaged in a plastic case, sealed with a heat-shrinkable tube coated with an adhesive film or potted with epoxy resin, the waterproof property is very poor. And the reliability of its water-resistance performance cannot be checked by a non-destructive method.

The present invention is aimed at the above-mentioned defects, and provides a new and useful marine water-proof alkaline battery pack which is absolutely water-proof, large in electric capacity, large in output current, stable in voltage and good in low-temperature performance, etc. in the aspects of external shell of marine water-proof primary battery pack, material of battery cell and filling resin between battery pack and external shell.

In order to achieve the above objects, the waterproof alkaline battery pack of the present invention is constructed such that alkaline zinc-manganese battery cells are connected in parallel and in series, and the battery pack is filled and fixed in a sealed compartment whose outer case is made of a rigid PVC (rigid polyvinyl chloride) material, using a lightweight, insulating, heat-insulating, impact-resistant, waterproof rigid polyurethane foam. The positive pole and the negative pole of the battery pack are output electromotive force by the watertight cable through the watertight plug. The upper cover of the sealed cabin is provided with a small hole for applying high-pressure gas to test the sealing performance of the battery pack.

The present invention will become more fully understood from the detailed description given herein below, and the accompanying drawings are included for purposes of illustration only and are not intended to limit the present invention.

Fig. 1 is a structural view of a waterproof alkaline battery pack according to an embodiment of the present invention.

Fig. 2 is a top view of a waterproof alkaline battery can according to an embodiment of the present invention.

A plurality of alkaline zinc-manganese primary battery monomers [5] are connected in parallel and in series, and are filled and fixed in a sealed cabin shell [4] made of hard PVC material by using hard polyurethane foam [6], and a watertight cable [2] outputs electromotive force from the positive pole and the negative pole of a battery pack through a watertight plug. The sealed hatch cover [3] is firmly connected with the galvanized iron lifting ring [1] by bolts [9 ]. [7] Is a sealed bilge. High-pressure gas is applied through the bolt holes [10] to carry out watertight inspection on the battery pack, and then all possible water inlet positions are strictly sealed, so that water resistance is ensured.

The alkaline zinc-manganese primary battery monomer adopts a structure of the manganese dioxide electrode outside the inner zinc electrode, so that the manganese dioxide electrode can be made to be very thin, which is beneficial to the migration of ions, and as a result, the internal resistance of the battery is lower, and the current density of the battery during discharging can be improved. And because the conductive material in the cathode of the alkaline zinc-manganese primary cell is graphite powder, and the cathode of the alkaline zinc-manganese primary cell is formed under high pressure, the content of manganese dioxide in the cathode is 30-50% more than that of the neutral zinc-manganese primary cell, which means that the capacitance of the alkaline zinc-manganese primary cell is 30-50% higher than that of the neutral zinc-manganese primary cell, and actually is higher than the number. The electrolyte of the alkaline zinc-manganese battery adopts KOH, which not only reduces the internal resistance of the battery, but also improves the low-temperature performance of the alkaline zinc-manganese battery because the freezing point of the KOH is-66 ℃. And because the zinc electrode is powder, the surface area is increased, and the zinc electrode can bear large-current discharge. In conclusion, the alkaline zinc-manganese dioxide battery has better high-current discharge performance, low-temperature performance and discharge stability than the neutral zinc-manganese dioxide dry battery.

In the battery pack of the embodiment, 84 cylindrical alkaline zinc-manganese primary battery monomers are connected in parallel into a small combination by every 7 battery monomers, and then 12 small combinations are connected in series into the whole battery pack, wherein the rated voltage of the whole battery pack is 18V, and the rated capacity of the whole battery pack is 210AH.

The invention uses high-strength hard PVC pipe as the cabin wall in the sealed cabin device, uses hard PVC plate to make the sealed cabin bottom and cover, assembles the battery into the cabin, fills and fixes with hard polyurethane foam, leads out the positive and negative poles of the battery pack through the watertight plug by the watertight cable, then uses hard PVC welding rod to weld the sealed cabin wall, the sealed cabin cover and the bottom into a whole, and [8] is hard PVC heat welding line. For firm welding, the edges of the dish-shaped bottom and the cover are provided with inclined planes with the width of 10-15mm, the height of 9.4mm and the included angle of 38-45 degrees. The leading-out hole of the watertight cable and the special small hole for testing the watertight performance of the battery pack are sealed by a bolt applied with a polyurethane liquid rubber sealing material.

In the above embodiment, the waterproof sealed cabin can be made of engineering plastics such as polyethylene, polypropylene or nylon.

The marine waterproof alkaline battery pack with the structure has the characteristics of large electric capacity and output current, and has good voltage resistance and improved voltage resistance due to the fact that hard polyurethane foam is filled between the battery monomers and the shell; the sealed cabin is the shell of the battery pack, so that the waterproofness is ensured, and the stable electrical property of the battery pack is realized. Therefore, the battery pack is suitable for a telemetering buoy system of hydrological and meteorological data with large power consumption on the ocean; navigation mark system for sea and port traffic management and unmanned communication station in island.

Claims (7)

1. A waterproof primary battery pack comprising the following members, a plurality of battery cells connected, a casing for housing the battery pack, a resin for filling the battery cells, a watertight cable for an electrode of the battery pack, a watertight plug, and a galvanized iron bail, characterized in that the battery cells are alkaline zinc-manganese primary batteries.

2. A water-resistant battery according to claim 1, wherein 84 alkaline zinc-manganese cells are connected in parallel to form a small group of 7 cells, and then 12 small groups are connected in series to form a whole battery, which has a rated voltage of 18V and a rated capacity of 210AH.

3. A water-resistant battery according to claim 1, wherein the casing for housing the battery is a capsule, a capsule wall is made of a hard PVC pipe, a dish-shaped capsule bottom and a lid are made of a hard PVC plate, and they are heat-welded into a single body by a hard PVC welding rod.

4. A waterproof cell stack according to claim 3, characterised in that the edges of the dish-shaped base and cover of the capsule are bevelled at an angle of 38 ° with a width of 12mm and a height of 9.4 mm.

5. A water-resistant galvanic cell according to claim 3, wherein the rigid PVC cover is provided with apertures dedicated to the application of high pressure gas to test the sealing performance of the cell.

6. A water-resistant galvanic cell according to claim 3, wherein the resin is selected from polyurethane foam.

7. A waterproof galvanic cell according to claim 1, wherein the watertight cable exit hole and the special small hole for checking the watertight performance of the cell are sealed tight by bolts with a polyurethane liquid rubber sealing material applied.

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