DE102022004172A1 - Solar street light - A lighting system that converts sunlight into electrical energy, stores it in batteries and releases it again as light when needed, e.g. at night. - Google Patents

Abstract

A lighting system that converts sunlight into electrical energy, stores it in batteries and releases it as light when needed, e.g. at night. The light is characterized by the use of one or more PV solar modules operated in conjunction, one or more weatherproof LED light heads attached to a vertical mast, the control system and rechargeable batteries. The design and dimensioning of the components aim to ensure safe operation, even in the event of one or more days without sunshine, e.g. when it is cloudy or snowy.

Description

Reference is made to the attached sheet with the drawings 1 - 3 and the respective numbering “ ”

The LED light head “4” does not contain a driver - the LEDs are operated directly without the interposition of electronic components on a remote control unit with driver “9”. This lowers the ambient temperature of the LEDs and thus increases their life expectancy.

1. 1) die Funktion des Batterie-Ladereglers, in PWM oder MPPT Regelverfahren,
2. 2) die Erkennung von Tag/Nacht erfolgt über die permanent gemessene PV-Modulspannung
3. 3) Feste oder variable Zeitblöcke, die ab dem Starten der Beleuchtung, beliebige Dimmungen oder Ein-und Ausschaltungen der Beleuchtung steuern,
4. 4) der integrierte LED Treiber, der im weiten Bereich einstellbare Steuerströme und Spannungen liefert, um direkt einzelne oder in Gruppen oder Reihen zusammengeschaltete LEDs zu betreiben
5. 5) Dimmung durch Veränderung des LED Betriebsstromes
6. 6) Die automatische Erkennung der Batteriespannung und Umschaltung
7. 7) Intelligentes Batteriemanagement, welches in Abhängigkeit der Batterieladung die LED Lichtstärke regelt, um auch bei geringer Batterieladung die Beleuchtung, wenn auch in reduzierter Leuchtstärke zu ermöglichen. Hiermit wird die autarke Betriebsdauer verlängert.
8. 8) Messung der Umgebungstemperatur und darüber angepasste Ladekennlinie zur Batterieladung
9. 9) Optional mit Steuereingang zum Anschluß einer Zeitschaltuhr oder eines Bewegungsmelders
10. 10) Drahtlose Fernbedienbarkeit über ein Funksignal, wie z.B. WiFi, Bluetooth oder andere digitale Datenübertragungsmethoden. Es können Leuchteneinstellungen und automatisierte Vorgänge ausgelesen oder auch verändert werden.
11. 11) Ereignisspeicher mit der Möglichkeit zum Auslesen des Leuchtenzustandes, wie Batteriespannung, PV-Modulspannung, LED Strom, Ein- und Ausschaltungen, im aktuellen Moment, sowie rückwirkend über einen Zeitraum von 5 Tagen oder länger

The lighting control “9” contains the following functions in one housing:

1. 1) the function of the battery charge controller, in PWM or MPPT control mode,
2. 2) Day/night detection is done via the permanently measured PV module voltage
3. 3) Fixed or variable time blocks that control any dimming or switching on or off of the lighting from the start of the lighting,
4. 4) the integrated LED driver, which provides a wide range of adjustable control currents and voltages to directly drive individual LEDs or LEDs connected in groups or series
5. 5) Dimming by changing the LED operating current
6. 6) Automatic detection of battery voltage and switching
7. 7) Intelligent battery management, which regulates the LED brightness depending on the battery charge, in order to enable lighting even when the battery charge is low, albeit at a reduced brightness. This extends the autonomous operating time.
8. 8) Measurement of the ambient temperature and adapted charging characteristic for battery charging
9. 9) Optionally with control input for connecting a timer or motion detector
10. 10) Wireless remote control via a radio signal, such as WiFi, Bluetooth or other digital data transmission methods. Light settings and automated processes can be read or changed.
11. 11) Event memory with the ability to read the luminaire status, such as battery voltage, PV module voltage, LED current, on and off switching, at the current moment, as well as retrospectively over a period of 5 days or longer

Use of one or more hermetically sealed, maintenance-free batteries, such as AGM, lead-gel or LiFePo4 batteries “8”.

The batteries are located in the mast “5” or in a waterproof housing “7”, which can also be installed recessed in the ground.

Fastening the solar module(s) “1” using a rotating mounting bracket “2” above the luminaire to a mast “3”.

Fixing of the lamp head “4” directly or with the help of a boom to the mast, rotatable and/or tiltable

Claims (15)

The LED light head “4” does not contain a driver - the LEDs are operated directly without the interposition of electronic components on a remote control unit with driver “9”. This lowers the ambient temperature of the LEDs and thus increases their life expectancy. Lighting control and battery charge controller in one housing, in PWM or MPPT control mode, The lighting control detects day/night via the permanently measured PV module voltage the lighting control offers fixed or variable time blocks that control any dimming or switching on and off of the lighting from the start of the lighting, Luminaire control with integrated LED driver that provides a wide range of adjustable control currents and voltages to directly operate individual LEDs or LEDs connected in groups or series Luminaire control with dimming by changing the LED operating current Lighting control with automatic detection of the nominal battery voltage and switching of the system Lighting control with intelligent battery management, which regulates the LED light intensity depending on the battery charge, in order to enable lighting even when the battery charge is low, albeit at a reduced brightness. This extends the autonomous operating time. Lighting control with control input for connecting a timer or motion detector Wireless remote control of the lighting control via a radio signal, such as WiFi, Bluetooth or other digital data transmission methods. Lighting settings and automated processes can be read or changed. Luminaire control with event memory with the ability to read the luminaire status, such as battery voltage, PV module voltage, LED current, on and off switching, at the current moment, as well as retrospectively over a period of 5 days or longer Use of one or more hermetically sealed, maintenance-free batteries, such as AGM, lead-gel or LiFePo4 batteries. The batteries are located in the mast “5” or in a waterproof housing “7”, which can also be installed recessed in the ground. Fastening of the solar module(s) "1" using a rotating mounting bracket "2" above the light to a mast "3". The cable is inserted into the middle of the mast from above. This allows the solar module to be rotated as desired without cutting off the connecting cable. Fixing of the lamp head “4” directly or with the help of a boom to the mast, rotatable and/or tiltable