GB1395508A - Battery-powered electrical apparatus - Google Patents
Battery-powered electrical apparatusInfo
- Publication number
- GB1395508A GB1395508A GB5338571A GB5338571A GB1395508A GB 1395508 A GB1395508 A GB 1395508A GB 5338571 A GB5338571 A GB 5338571A GB 5338571 A GB5338571 A GB 5338571A GB 1395508 A GB1395508 A GB 1395508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cells
- battery
- load
- electrical apparatus
- nov
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
1395508 Battery switching systems TOWER HOUSEWARES Ltd 13 Nov 1972 [17 Nov 1971] 53385/71 Heading H2H Electrical apparatus comprises a load 42 which is energizable from a battery 41 having a plurality of nickel-cadmium cells, connected in series which are rechargeable from an A.C. source by way of a transformer 22 and rectifier bridge 37, a switch 35 being provided whereby one or more of the battery cells may be connected to, or disconnected from the load 42 so as to provide variable energization thereof, the number of cells which can be so switched being chosen such that, in using the apparatus, the unswitched cells cannot be damaged by the reverse charging thereof, and that the switched cells cannot be overcharged during the charging process. The load 42 may be the motor driving an electric heating apparatus which may be detachably mounted on a stand wherein is housed the transformer 22, connection between which and the bridge 37 is made by connections 18-21.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5338571A GB1395508A (en) | 1971-11-17 | 1971-11-17 | Battery-powered electrical apparatus |
SE7214846A SE382290B (en) | 1971-11-17 | 1972-11-15 | ELECTRICAL APPLIANCE INCLUDING A CHARGE AND A BATTERY DRIVING THIS CHARGE. |
DE2256031A DE2256031A1 (en) | 1971-11-17 | 1972-11-15 | ELECTRICAL DEVICE WITH BATTERY SUPPLY |
CA156,622A CA967237A (en) | 1971-11-17 | 1972-11-16 | Cordless electrical appliances |
IT54109/72A IT973612B (en) | 1971-11-17 | 1972-11-17 | ELECTRICAL EQUIPMENT WITHOUT CORD |
JP47114893A JPS4861948A (en) | 1971-11-17 | 1972-11-17 | |
FR7240988A FR2160642B3 (en) | 1971-11-17 | 1972-11-17 | |
ZA728155A ZA728155B (en) | 1971-11-17 | 1972-11-17 | Cordless electrical appliances |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5338571A GB1395508A (en) | 1971-11-17 | 1971-11-17 | Battery-powered electrical apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1395508A true GB1395508A (en) | 1975-05-29 |
Family
ID=10467615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5338571A Expired GB1395508A (en) | 1971-11-17 | 1971-11-17 | Battery-powered electrical apparatus |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4861948A (en) |
CA (1) | CA967237A (en) |
DE (1) | DE2256031A1 (en) |
FR (1) | FR2160642B3 (en) |
GB (1) | GB1395508A (en) |
IT (1) | IT973612B (en) |
SE (1) | SE382290B (en) |
ZA (1) | ZA728155B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0448505A2 (en) * | 1990-03-23 | 1991-09-25 | HILTI Aktiengesellschaft | Battery driven device |
-
1971
- 1971-11-17 GB GB5338571A patent/GB1395508A/en not_active Expired
-
1972
- 1972-11-15 DE DE2256031A patent/DE2256031A1/en active Pending
- 1972-11-15 SE SE7214846A patent/SE382290B/en unknown
- 1972-11-16 CA CA156,622A patent/CA967237A/en not_active Expired
- 1972-11-17 FR FR7240988A patent/FR2160642B3/fr not_active Expired
- 1972-11-17 ZA ZA728155A patent/ZA728155B/en unknown
- 1972-11-17 IT IT54109/72A patent/IT973612B/en active
- 1972-11-17 JP JP47114893A patent/JPS4861948A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0448505A2 (en) * | 1990-03-23 | 1991-09-25 | HILTI Aktiengesellschaft | Battery driven device |
EP0448505A3 (en) * | 1990-03-23 | 1993-01-20 | Hilti Aktiengesellschaft | Battery driven device |
Also Published As
Publication number | Publication date |
---|---|
CA967237A (en) | 1975-05-06 |
FR2160642B3 (en) | 1976-01-09 |
FR2160642A1 (en) | 1973-06-29 |
ZA728155B (en) | 1974-02-27 |
IT973612B (en) | 1974-06-10 |
SE382290B (en) | 1976-01-19 |
JPS4861948A (en) | 1973-08-30 |
DE2256031A1 (en) | 1973-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |