DE1080641B - Degassing device for electrical collectors - Google Patents

Description

GERMAN

About the electrical collector that occurs during charging and discharging inside the closed housing To compensate for overpressure are mainly two basic types of degassing devices known. Both types are-d'ie valve action common, but this valve is dimensioned and designed so that the electrolyte liquid from the. Collector container cannot escape even if the container is turned over, which is mainly for portable collector housing comes into question, the other time the valve is designed so that it is at responds to the slightest overpressure and only has the purpose of removing the inside of the mostly fixed collector housing to protect against the ingress of dirt and the ingress of air. The latter type of Degassing device is mainly used for larger collector cells.

For this latter type of electrical collector, especially for larger alkaline collectors, now is a degassing device in use, which consists of a funnel-like container that is placed on the Final cover of the collector is put on, usually welded on. The funnel-like container is used at the same time as a filling funnel for filling or refilling the electrolyte. The one at the bottom of the hopper The filling opening provided is closed by a spherical cap, which is spring-loaded is pressed through the top cover of the hopper on the filling opening.

This degassing device has the disadvantage that the electrolyte emerging from the filling opening overflows the outer edge of the hopper is thrown and shunts on the outside of the collector housing Cause. The creeping of the electrolyte, especially the potassium hydroxide, on the internal Walls of the hopper and over the edge of the hopper also not prevented, which also led to unpleasant disturbances. Also had to the electrolyte loss due to frequent topping up of new electrolyte and required increased maintenance.

The invention eliminates these disadvantages in a degassing device for electrical collectors, in particular with alkaline electrolyte, with or on the final cover of the accumulator recessed filling funnel, the floor of which is flooded Filling opening is covered by a movable, valve-like acting ball, in that the inner Side wall of the hopper over the filling opening one or more obliquely downwardly inclined annular Has inner flanges and the ball resting on the filling opening is supported by one on the lid of the Hopper attached cage is held loosely.

The degassing device according to the invention degassing device
for electrical collectors

;. Applicant:

VEB pit lamp works,
Zwickau (Sa.), Reichenbacher Str. 64-68

Max Kluge, Cainsdorf (district of Zwickau, Sa.),
has been named as the inventor

completely guards against the escape of electrolyte from the collector container when the electrolyte gasses otherwise arises. It has been proven that even

^a 5 overfilled collector housings, which thus · have a much smaller gas space available than usual, remain completely dry during charging and discharging due to the use of the new degassing device. It is precisely this fact that proves the great advantage of the new degassing seal compared to the previously used ones.

An exemplary embodiment of the invention is shown in the drawing.

On the end cover 1 of a not shown alkaline collector, the hopper 2 is welded and through the filling opening 3 with the interior of the collector housing connected. The hopper 2 is covered by a hinged lid 4 so that that gases can easily escape. The cover 4 is fastened in the hinge 5 so as to be pivotable and can be in the usual way in the respective end position by a spring, not shown be locked.

According to the present example, the upper edge 6 of the hopper 2 is inwardly and obliquely pulled in at the bottom and thus forms a downwardly sloping closed transverse rib on the side wall of the hopper 2. The transverse rib can of course also be at another point on the inner side wall of the filling funnel, i.e. not necessarily on the edge of the filling funnel.

The filling opening 3 is closed by an electrolyte-resistant plastic ball 7, which is in an am Fasten the lid 4 of the hopper so that it can move

* : r -j 009507/100

1 08G

Cage 8 is held loosely. When opening the lid 4 the cage 8 lifts the ball 7 and lifts it out of the hopper 2, thereby making it easy to felling the collector tank can be made with electrolyte.

The operation of the degassing device is very simple. When the electrolyte is gassing, the resulting overpressure inside the collector housing lifts the ball 7 , with electrolyte droplets through the loading alley into the. Hopper are spun. Due to the formation of the closing body, the ball 7, the electrolyte droplets are guided to the inner side wall of the filling funnel and are effectively prevented by the downward electrolyte droplets through the charging gases into the filling funnel 2. Electrolyte creeping, mainly potassium hydroxide, which is particularly prone to this, will repeatedly drip back into the filling funnel through the downwardly inclined transverse rib 6, so that electrolyte leakage over the edge of the filling funnel is always effectively prevented.

Claims (1)

Claim: Degassing device for electrical accumulators, especially with alkaline electrolyte, with the filling funnel placed or embedded in the end cover of the accumulator, its filling opening located at the bottom covered by a movable, valve-like acting ball is characterized in that the inner side wall of the hopper is above the filling opening one or more obliquely downwardly inclined, annular inner flanges (6) and which on the filling opening (3) resting ball (7) fastened by a on the lid (4) of the filling funnel Cage (8) is held loosely. Considered publications:
German Patent Nos. 329 572, 947 181;
French Patent Nos. 555,705,1 091667; U.S. Patents Nos. 1,084,444, 1,023,012,
263, 2,182,266, 2,306,982;
GWVinal, Storage Batteries, 1952, p. 83. 1 sheet of drawings © 009 507/10 © 4.60