DE1929211A1 - Device powered by a metal / air battery - Google Patents

Description

DR. ILSE RUCH PATENT ADVOCATE MONKS 5 I ΌΔ.ΌΔ II

REICHENBACHSTR. 51
TEL 163151

ΡΜ-292Λ0Θ
R / V

Laesona Corporation, Warwick, Rhode Island, U.S.A. Device powered by a metal / air battery

The invention relates to devices "fed by a metal / air battery" such as Taaohen lamps, Toys, electric razors, electrical tools, portable electronic or corrugated heat exchangers, and the like, and in particular the formation of the switch sum breaking the circuit of such a device.

Metal / air batteries are so through in the newer tent * · has been developed »because it has already been used in a view! of ridden in which currently the conventional lead / acid, silver / mercury or Nlokel / Dadaium batteries are used. In particular, in these new batteries, the ratio of oewloht to volume and energy to volume better than the conventional batteries where the entire depolarization energy from the start in contained in the cell itself. With the Met »11 / air batteries on the other hand, the depolarization voltage is air

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or oxygen "and these batteries must therefore be designed" in such a way that air or oxygen enter them can. If, however, also in the tents »in which that Device does not work «i.e. no power is consumed, Air enters »so it comes to undesirable eheaisohen and physical changes in the cells »for example evaporation of water from the Electrolytes, if this is a substantial solution, an oxidation of the metallic anode by oxygen in the electrolyte and bxw. or it forms see when the electrolyte is an alkali solution, for example a potassium hydroxide solution, duroh Absorption of carbon dioxide from the air - insoluble carbonate.

The aim of the invention is therefore to design a switch

for devices that are powered by duroh metal / taft batteries are "such that air or oxygen can only enter the battery" when they supply stroa

The subject of the invention is one of a MetallAuft-Batterle operated OcrKt old an ophthalmologist for the Battery "the old vent hat ions" it is provided " Means to disconnect and open the electrical circuit and means sun soles and opening the Yentilationaittel. Dan Oerit is characterized by » that the means sum up and open the circle of the Stroak and the means of pouring the bottom and opening the ventilation system so designed and so arranged under the QehKuse that through the bottom and open the circuit on the same side the Yentllatlonsaittel closed bsw. be opened.

909851/1297

QAD

The means for closing and opening the circuit are preferably in one piece with means for covering or opening one or more ventilation openings in the area surrounding the battery OehKuse trained «or both are mechanically strong connected with each other. In particular, the electrical switch is also used to open or cover the Movable part serving ventilation openings with an attached conductive part which, when the Switch is closed, the battery with the energy-consuming part of the device, for example the Bulb of a flashlight that connects.

In the drawings shows *

Figure 1 shows a flashlight according to the invention, Figure 2 shows a cross section through this flashlight

IKnga of the line 2-2 of Figure 1 and Figure 3 shows a cross section through a toy according to the invention.

In the flashlight shown in Figures 1 and 2 the switch consists of a sole 13 of a conductive material, for example a metal, with a handle part 11 and holes 14 and 16. If this Switch is moved so that the batteries 27 and 29 with the power-consuming part of the Oerites, in this case the lightbulb, as shown by the illustration of the switch in dashed lines Lines shown in Figure 2 so holes 14 and 16 in this Sohalter over holes 17 and 19 in the Wall 24 of the TaeohenlanpengehltuseB pushed. If against duroh versohleben of the Schelters the Xontakt with the

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electrically conductive reflector 25 is released, covers the slide holes 17 and 19 in the lamp housing again so that no more air * can get to the batteries. A narrow slot 21 in that Housing 24, through the handle part 11 and sole ber 13 with each other are connected, is used to guide the slide

FIG. 3 illustrates a toy vehicle with a motor 33 “fed by a zinc / air” battery 31 will. This vehicle has a single opening 37 in a wall 35 surrounding the engine and battery Housing. The switch 39 is in turn designed as a Sohieber that abdeokt the opening 37 when the Circuit is open as shown in the drawing. When the slide 39 sahlieät the circuit, slides a hole in this slide via the hole 37 in the housing. The circuit is closed by that the part 30 of the slide 39 on the one on the housing wall attached contact part 32 is pushed.

The invention is basically applicable to all devices Metal / air batteries are applicable, but especially to devices that use a metal / air battery, such as see US patent application serial no. 533 516 of March 11, 1966 (Oawin) are * The cathode Such a battery contains an air-permeable member made of a hydrophobic polymer such as a fluorinated one Hydrocarbons, for example polytetrafluoroethylene, polytrifluorochloroethylene, polyvinyl fluoride, polytrifluoroethylene, Polyvinylidene fluoride »a hydrophobic copolymer of two or more of the above materials or one of these materials with acrylonitrile,

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Methacrylate, polyethylene and the like »In contact old an electrocatalyst, like a «metal, one Alloy or an oxide that may accelerate an electrochemical reaction, for example setallleohe * Niokel, silver, gold, platinum or Palladius or carbon. The anode can consist of a solid conductor, as is usually the case as an anode in a metal / air or Metal / oxygen cells are used, where only the requirement that the material be old has to be satisfied de «electrolytes su react failure and elect (« more positive she is oxygen. Examples of such materials are lead »zinc, bisen« cadsius, alusinlus and magnesite, In particular, a porous incanode is used in single grooves used. The electrolyte can consist of the anode area and an ionic cold medium be, and anode and cathode are mutually duroh one hydrophilic ion-permeable membranes from, for example Kraft paper, separated from each other. The hydrophobic Msabren of the cathode is air or oxygen sugewandt. The structure of such a line is not Subject of the present invention.

9 0 9 8 51/1297

Claims (4)

Pit int iniprllo b < Slektrlech Oerät, dM from 1η Γ Metal / air beds (•• p «let a« QehSAiee YOUR dl · battery, because * ■ It Vent Has always been provided with a coat sub 8ohllelen and open the "elektriaohen stroakrelee" and Means do soles and open the ventilatio tent, thereby sekennselehnet «da · dl · Medium sua soles and openings dM ttroakpeleee (13, 30) and dl · means lua So hl Ie lan and opening the Veatllatlonaeittel (13 «30) eo auace forms and so au de«. OahlCu ·· (2 *; 35) arranged "lad" dal thin hollow lines and openings de "Stroakreiaee slelehseltlc the V" ntllatlooe "lttel feaohloMien baw. aa opens «erdaa» 3. llelctrliwhee Oait »aaah Aaapyueh 1» didu gek en nse is worthwhile, that the smock sub lead and opening dea etroaflcreiaee (S3 · X) • HwtOekif alt means sua Open torn. Aadeekafi of one or more of the ventilation openings (17 * 191 37) la dea the battery laiaamnrtsn Oeoauae • ueaeblldet or both Beehaaieoh feat aitelnander connected ilnd. 3. Hektrleene Oettt aaeh Anenuoh 1 egg 8 * thereby iskioniiiehnit, that the Means to aenllefen or open the itroalcrel · «· eua elaea at the Pamaieud dea OehBuect aaaaorderan »old one of the AuAeowaad dea Oeafusea arranged and in Elnea enaen ftehlitg in the Oehluae aefühxten Oriffteil 909851/1297 BATH consist »whereby the Sohieber 1 or more Lttoher (17, 19), the eo arranged bind, dafl »ie via holes slide in the wall of the housing when the slider is moved so that it closes the circuit, has 4. Electrical OerKt according to Claim 1, because you are oh characterized in that the Me tall / air battery is a zinc / air battery. 51/12 Blank page