Patent US3763416A successfully refreshed from Google Patents.
US3763416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator system for secondary batteries
Assignee: Accumulatorenfabrik Sonnenschein GmbH
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Filing: 1972-05-24
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Granted: 1973-10-02
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Expires: 1992-05-24
Abstract
Abstract To permit charging of secondary batteries by electrical power at a voltage which is just below the gassing voltage of the battery, a temperature sensing device is placed on the holder for the battery, spring-pressed against the battery so that the actual battery temperature will be sensed. The sensed temperature then is utilized to control the voltage regulator to vary the charge voltage in accordance with actual battery temperature to provide for most rapid and safe charging under all battery operating conditions.
Inventors
- 👤 O Jache
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:40
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/971; H02J7/975; H02J7/977; H01; H01M; H01M50/00; H01M50/20; H01M50/204; H02J7/14; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
149 words
In a voltage regulator system for secondary batteries 2 in which the battery 2 is charged from a source of variable voltage; a holder means 1, 3, 4, 5, 13 holding the battery in a fixed location including a member 1, 13 located adjacent the battery when the battery is placed against the holder means; a voltage regulator 9 limiting the charge voltage to a predetermined value; and temperature sensitive means providing an electrical signal connected to the voltage regulator to affect charge voltage in dependence on battery temperature; the improvement wherein said member 1, 13 of the holder means adjacent the battery 2 is formed with a cavity therein, the temperature sensing means 10 being an element mechanically separate from the battery 2 and located in the cavity to contact the outside wall of the battery and to be in heat transfer relation therewith to sense battery temperature.
Claim 2
Dependent Claim
149 words
In a voltage regulator system for secondary batteries 2 in which the battery 2 is charged from a source of variable voltage; a holder means 1, 3, 4, 5, 13 holding the battery in a fixed location including a member 1, 13 located adjacent the battery when the battery is placed against the holder means; a voltage regulator 9 limiting the charge voltage to a predetermined value; and temperature sensitive means providing an electrical signal connected to the voltage regulator to affect charge voltage in dependence on battery temperature; the improvement wherein said member 1, 13 of the holder means adjacent the battery 2 is formed with a cavity therein, the temperature sensing means 10 being an element mechanically separate from the battery 2 and located in the cavity to contact the outside wall of the battery and to be in heat transfer relation therewith to sense battery temperature.
Claim 3
Dependent Claim
22 words
System according to claim 1, wherein resilient means 11 are provident resiliently biassing the temperature sensor into contact with the battery wall.
Claim 4
Dependent Claim
18 words
System according to claim 2, wherein the temperature sensor is located against the bottom wall of the battery.
Claim 5
Dependent Claim
18 words
System according to claim 2, wherein the temperature sensor is located against the side wall of the battery.
Claim 6
Dependent Claim
28 words
System according to claim 2, wherein the voltage regulator and the temperature sensor form one integral unit, said unit being spring-pressed by said resilient means against the battery.
Claim 7
Dependent Claim
44 words
System according to claim 1, wherein the temperature sensor and voltage regulator form an integral unit located in the cavity and resiliently held therein with the temperature sensor facing the battery when the battery is located in position with respect to the holder means.
Claim 8
Dependent Claim
52 words
System according to claim 6, wherein the member is plate-like And formed with a closed cavity, the temperature sensor-voltage regulator unit and the resilient means being located in said cavity; and thermal insulation means are located at least in part in said cavity to insulate the temperature sensor from outside temperature disturbances.
Claim 9
Dependent Claim
27 words
System according to claim 1, further comprising thermal insulating means insulating the temperature sensor against outside temperature disturbances and surrounding the temperature sensor at least in part.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |