Thermostatic automatic cutoff charging device

Thermostatic Automatic Cutoff Charging Device, whereof a rechargeable cell is connected in series with and thermally coupled to a usually closed thermo-sensitive circuit breaker, such that as the temperature of said cell rises on charging saturation to a predetermined level, the usually closed thermo-sensitive circuit breaker, duly affected by the heat produced thereupon, will cut open, meanwhile a heat retention resistor that is in parallel with and thermally coupled to the usually closed contacts on the usually closed thermo-sensitive circuit breaker will produce heat due to current passing through it, and that bringing the usually closed thermo-sensitive circuit breaker eventually to skip-off condition, the heat retention resistor will restrict, at the same time, a topping current that is always maintained in the rechargeable cell, in its operation, the rationale provides for:

• a. execution in which the Heat Retention Resistor is of a smaller thermal power, that which makes possible heating in a heat-delayed resetting fashion with respect to the thermally coupled usually closed thermo-sensitive circuit breaker TS1, whereby the time for the contacts to reset to closure is duly extended, and once the usually closed contacts are reset, the rechargeable cell will once again be charged to saturation and thereupon produce heat, so that the usually closed thermo-sensitive circuit breaker duly affected by the heat, gets open again, and that accounting for cyclic intermittent supplemental charging occasioned by heat-induced delay;
• or alternatively;
• b. execution in which the heat retention resistor is of a greater thermal power, which, by heating with respect to the usually closed thermo-sensitive circuit breaker that is being thermally coupled thereby, will restrict the topping current owing to the rechargeable cell by the outstanding action of the heat retention resistor.