Classifications

• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C10/00—Arrangements of electric power supplies in time pieces
• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals

Definitions

• the invention relates to a device for mains-operated time switches with electrical, battery-operated power reserve, for controllable electrical connection of the power reserve battery for mains-operated energy supply to the drive of the time switch.
• the power reserve battery is electrically directly parallel to the mains-operated energy supply of the time switch and supplies the drive system there with electrical energy whenever the energy supply from the mains is missing. That There is continuously unnecessary energy drawn from the power reserve battery, especially during the storage period or the transport time between the manufacturer and the customer. This is also the case if such watches are subjected to a long trial run or a system test after they have been installed by the customer.
• the capacity of the power reserve battery is significantly impaired in the known time switches of this type, in that the accumulators used there are often deeply discharged, so that the full power reserve assigned to the clock by the manufacturer is not the same at the time when such a time switch is actually put into operation or no longer - depending on the battery system - is available.
• the invention has for its object to improve time switches of the type mentioned above and to provide them with a simple device that ensures and makes it possible that at the time of the actual commissioning of a time switch or irrelevant in time thereafter a capacity electrical! full power reserve Battery of the mains operated power supply of the drive of the time switch can be switched on. It should be ensured that the time at which the power reserve battery is switched on can be preselected, based on the time at which a time switch was started for the first time.
• the advantage of this device for time switches is not only that at the time when the time control function of a time switch is actually started, an electrically full power reserve battery is switched on automatically in a preselectable manner, but that it also makes it possible to compare economical primary elements as power reserve batteries to use rechargeable batteries without having to run the risk that, like the rechargeable batteries previously used, they are discharged or unusable at the time the timer is actually started. It is also advantageous that even longer non-functional storage times - especially without mains operation or longer test runs - have no influence on the capacity of an electrically full power reserve battery.
• Embodiments of the device according to the invention are basically shown in the drawing and are explained below. Show it
• Fig. 1 is a block diagram of a network-operated electronic
• Time switch with electronic time delay device provided in the circuit of the power reserve battery
• Fig. 2 is a block diagram of a timer according to Fig. 1 with a microprocessor instead of an electronic counter and with electronic network detection.
• the time switch shown in FIG. 1 only as a block diagram consists in particular of the mains-operated energy supply part 12, to which the power reserve battery 2 is assigned parallel to the DC voltage output 13 there, in the circuit 1 of which a semiconductor switch 18 is connected to a transistor.
• This semiconductor switch 18 is controlled by a discrete time measuring element, the switching time of which can in particular be preselected. It is thus possible to switch on the power reserve battery 2 only after a certain period of time of such a timer on the network, of approximately 100 hours, in order to ensure that even after a longer storage or transport time or after a longer trial run on the network, the power reserve battery 2 provided with the actual commissioning of the time switch has its full capacity and the power reserve battery 2 was not impaired in its capacity or completely discharged when the time switch was started up, as was often the case with the known time switches with power reserve Case was.
• the time measuring element which controls the semiconductor switch 18 can be an electronic counter, which is expediently integrated directly into electronics 9 of the time switch.
• the counter is incremented by the electronics 9 during a network operation. If the mains is switched off, the meter reading reached is deleted, since the power reserve battery 2 has not yet been switched on. If, however, the predetermined counting unit is reached, the counter switches on the power reserve battery 2 and remains in the switched state via the power reserve. However, a corresponding self-holding circuit can also be provided there via the transistor.
• microprocessor 19 can also be directly part of the electronics required for a fully electronic timer.
• the microprocessor 19 is expediently provided with a special counting loop for controlling the switch-on time for the power reserve battery 2.
• a network detection on the microphone processor 19 are present, for controlling the connection of the power reserve battery 2.
• the power reserve battery 2 can also be switched on at an earlier point in time than the preselected one, if a corresponding battery condition measuring device is provided and issues a corresponding switching command to the built-in corresponding electronics. This may be necessary when the intended delay time has almost expired and the condition of the power reserve battery 2 is relatively good. This can be the case if the network fails shortly before the delay time expires and network detection issues a corresponding command.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Electric Clocks (AREA)
• Measurement Of Predetermined Time Intervals (AREA)
• Stand-By Power Supply Arrangements (AREA)
• Power Sources (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6225000

Family Applications (2)

Family Applications After (1)

Country Status (3)

Cited By (1)

Families Citing this family (2)

Citations (3)

Family Cites Families (7)

• 1984
  • 1984-01-14 DE DE19843401187 patent/DE3401187A1/de active Granted
• 1985
  • 1985-01-12 WO PCT/DE1985/000008 patent/WO1985003144A1/de active IP Right Grant
  • 1985-01-12 EP EP19850900634 patent/EP0170664B1/de not_active Expired
  • 1985-01-12 EP EP19850900635 patent/EP0172182B1/de not_active Expired
  • 1985-01-12 WO PCT/DE1985/000007 patent/WO1985003143A1/de active IP Right Grant

Patent Citations (3)

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