EP4461092A1 - Versorgungseinrichtung für eine notleuchte und aufrüsteinheit - Google Patents
Versorgungseinrichtung für eine notleuchte und aufrüsteinheitInfo
- Publication number
- EP4461092A1 EP4461092A1 EP23700076.5A EP23700076A EP4461092A1 EP 4461092 A1 EP4461092 A1 EP 4461092A1 EP 23700076 A EP23700076 A EP 23700076A EP 4461092 A1 EP4461092 A1 EP 4461092A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- temperature sensor
- status led
- temperature
- microcontroller
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B35/00—Electric light sources using a combination of different types of light generation
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
- F21S9/022—Emergency lighting devices
Definitions
- the invention relates to the field of electric emergency lights. It relates to a supply device for an emergency light and an upgrade unit according to the preamble of the corresponding independent patent claims.
- the temperature of the battery must be determined or (better) measured in order to meet the requirements of the standards.
- the following solutions are currently used:
- a temperature sensor is built into the battery and powered by the battery. Its output signal is routed to the electronic controller to be measured by its microcontroller.
- the battery is usually supplied with a equipped with a three-pole plug (plus, minus and measurement) and the electronic control adapted accordingly.
- a temperature sensor is built into the battery and powered by the battery. This sensor is assembled on an electronic circuit board together with a radio module. The temperature measurement is transmitted to the electronic control by radio so that it can be measured by its microcontroller. The electronic control must be adjusted accordingly.
- a temperature sensor is built into the battery and powered by the battery. If the battery temperature is outside the permitted temperature range, the battery line in the battery is electronically interrupted and, if necessary, restored when the temperature is OK again.
- a temperature sensor is attached or placed near or on the Li-Ion battery and powered by the electronic controller. Its supply and its output signal intended for the measurement must be connected to the electronic control in order to be supplied and measured by its microcontroller. This connection is usually made via a special connector located on the electronic control. The electronic control must be adapted for this.
- the temperature of the electronic control can be measured and the battery temperature can be approximately calculated from this measurement.
- a temperature sensor is installed on the electronic control, or the microcontroller used has an integrated temperature measurement.
- the temperature sensor is built into the battery and is permanently supplied with power from the battery.
- the battery is constantly being discharged, which leads to a shorter storage time.
- the batteries are no longer compatible with older types (i.e. before the standard was changed).
- Solution 2 requires the incorporation of a complex electronic circuit board into the battery, which involves significant additional costs.
- the electronic control must be adapted to receive the radio signal from the temperature measurement circuit.
- Solution 3 does not conform to the standard, since the battery cable is interrupted both during charging and during discharging if the temperatures are too high, which prevents emergency operation.
- solution 4 the electronic control has to be changed significantly, since an additional plug has to be installed. Backwards compatibility is not guaranteed with the electronic controls.
- Solution 5 cannot be used universally, since the battery and the electronic control are not always in the same housing. In addition, the microcontroller must be able to measure its temperature.
- the supply device for an emergency light has:
- an electronic controller having a charger for the battery and a microcontroller
- a status LED of at least two colors to display the status of the emergency light using a color of the status LED, in particular during a display interval
- a temperature sensor to measure an ambient temperature of the battery, in particular during a measurement interval
- the temperature sensor is wired to the status LED by a first control connection of the status LED and a measurement connection of the temperature sensor share the first connection to the microcontroller, and a second control connection of the status LED and a supply connection of the temperature sensor share a second connection to the microcontroller.
- the term "battery ambient temperature” means a temperature near the battery that is representative of the temperature of the battery itself. This temperature near the battery can be measured by having the temperature sensor attached to the battery, i.e. physically connected to the battery. The temperature sensor can touch the battery directly. Or a thermally conductive, non-gaseous substance can be arranged between the temperature sensor and the battery. This can be a thermally conductive mass, in particular a thermally conductive adhesive. Alternatively, the temperature can be measured close to the battery, with an air gap between the battery and the temperature sensor. A distance between the battery and the temperature sensor corresponding to the air gap is preferably less than a hundred millimeters, in particular less than ten millimeters, in particular less than three millimeters. If the rechargeable battery is arranged in a housing, the ambient temperature of the rechargeable battery can be equal to an internal temperature of the housing, and it is sufficient for measuring the temperature if the temperature sensor is arranged in the housing together with the rechargeable battery.
- the lines for controlling the LED and for reading out the temperature sensor are therefore routed via the same connections.
- the lines for controlling the status LED are connected in parallel with the lines for the temperature sensor.
- the invention thus realizes a temperature measurement of a rechargeable battery, which is installed in a self-contained emergency light or is used in combination with it.
- the charging current of the battery can be interrupted for safety reasons as soon as the ambient temperature of the battery is outside a certain range. It is in a self-contained emergency light also required to display statuses visually. This requirement is usually met with a two-color red-green light-emitting diode (a so-called status LED).
- the invention is implemented by wiring a temperature sensor with a two-color status LED, for example, so that it is supplied via the connection to control one of the colors of the status LED and is measured via the connection to control the other color.
- the control of the color used for the temperature measurement is configured by the microcontroller as an output for displaying the color at times and as an input for measuring the temperature at times.
- the adjustments to the existing emergency light are minimal: only the configuration of the two-color red-green status LED is changed by adding a temperature sensor to this status LED.
- the temperature sensor must be placed near the battery or mounted on the battery to measure its ambient temperature.
- the upgrade unit for a status display and a temperature measurement in an emergency light has: a status LED with at least two colors and a temperature sensor, where the status LED
- the second control connection of the status LED is connected to the supply connection of the temperature sensor and further connected to a second connection of the upgrade unit
- the reference connection of the status LED is connected to the reference connection of the temperature sensor and a common reference connection of the upgrade unit.
- 1 shows a combination of a status LED with a temperature sensor
- 2 shows an arrangement of the same in an emergency light
- Fig. 1 shows a topology of connections between a status LED 1), a temperature sensor 2) and a plug of a plug connection 3 for connection to a controller 16.
- the status LED 1 is shown as a three-wire LED and is controlled by these three wires. If a current flows between a first control connection 4 and a reference connection 5, the reference connection 5 being connected to a reference or basic voltage, the LED lights up red. If a current flows between the second control connection 6 and the reference connection 5, the LED lights up green.
- the temperature sensor 2 is also shown as an electronic component with three connection wires. This component is supplied via a supply connection 9, with a reference connection 7 being connected to the reference or basic voltage.
- the measured temperature can be measured as a digital or analog signal via a measurement connection 8 depending on the technology of the temperature sensor.
- the two components LED 1 and temperature sensor 2 are connected to form a combination, where
- LED 1 and temperature sensor 2 connected in this way can be used as an upgrade unit for an emergency light.
- connections between the components LED 1 and temperature sensor 2 are shown as insulated wires soldered together; alternatively, they can also be implemented using a different connection technique, for example terminals such as screw or spring terminals.
- connections to the microcontroller can be made via corresponding connections 10, 11, 12 of the upgrade unit.
- the connections are preferably mechanically repeatable and detachable connections, in particular plug-in or clamp connections.
- connection of the first connection 10 and second connection 11 and reference connection 12 of the upgrade unit to the electronic control of the emergency light takes place, for example, via a connector 3, the three interconnected wires could be routed directly to the circuit board or via a terminal.
- the following configurations are possible:
- a plug of the upgrade unit can be plugged into a socket of the controller 13 .
- the socket can be plugged into a housing of the controller 13 or into a circuit board of the microcontroller 16 .
- Three connection wires of the upgrade unit can be plugged into a terminal strip or individual terminals of the control 13.
- the terminal strip or individual terminals can be attached to a housing of the controller 13 or to a Circuit board of the microcontroller 16 can be arranged.
- the terminal strip can have screw or spring contacts.
- connection wires of the upgrade unit are soldered to connections of the controller 13, in particular on a circuit board of the microcontroller 16, instead of connection wires of the status LED.
- the dual color red/green status LED is wired so that the green color generation pin is used to power the temperature sensor and the red color pin is used to measure the temperature.
- the connections can also be used in reverse.
- FIG. 2 shows an emergency light 18 with the combination of status LED 1 and temperature sensor 2 shown in FIG.
- the electronic control 13 and the battery 14 are shown in FIG.
- the charger 17 and the microcontroller 16 are drawn in the electronic control 13 . All other components of the emergency light, which are used for its functionality and are installed, are not shown.
- the battery 14 is connected to the electronic controller 13 via the connector 15 .
- the status LED 1 is partially displayed outside of the emergency light 18 since the display must be visible from the outside.
- the temperature sensor 2 is arranged on the battery 14 or in the vicinity of the battery 14 in order to measure its ambient temperature.
- the temperature sensor 2 can also be glued onto the battery 14 or attached to the battery 14 in some other way.
- the ambient temperature of the battery is converted into an analogue or digital signal by the temperature sensor 2 and evaluated by the microcontroller 16. If this is outside the permissible temperature range, the charger 17 is switched off.
- first signals 4' and second signals 6' or voltages which the first control connection 4 or the second control connection 6 of the two-color status LED, outlined in FIG.
- the following points in time are recorded on the time axis 1': t0, t1, t2 and t3. Temperature measurements are carried out between times t0 and t1 or t2 and t3. These measurements can usually be carried out electronically by the microcontroller 16 within 100 ms. This is unobtrusive to a viewer. These measurements are performed at regular intervals, typically at regular time intervals, i.e. periodically. As a rule, the time interval t2 - tl between the measurements is 10s, since the ambient temperature of the battery is rather sluggish and changes only slowly.
- the voltage of the signal 6' with respect to the base voltage 5 is the forward voltage of the green LED when its current has reached the value controlled by the microcontroller 16.
- the voltage 6' is constant since the indicated state is permanently green.
- the forward voltage 6' of the green LED is at the same time the supply voltage 9 of the temperature sensor 2. Accordingly, this voltage must be compatible with the technology resp. Specifications of the temperature sensor regarding operating voltage must be compatible.
- the red LED is switched off by the microcontroller 16.
- the first control connection 4 of the red LED more precisely, a corresponding connection of the microcontroller, is configured by the microcontroller 16 as an output and programmed to zero or configured as an input, so that no current flows into the red LED.
- the first control connection 4 of the red LED is configured by the microcontroller 16 as an input.
- the corresponding first signal 4' is then generated by the temperature sensor 2 and corresponds to the ambient temperature of the battery 14. Depending on the sensor technology used, this signal can be digital or analog. An analog signal is shown in FIG.
- temperature measurements are carried out regularly, for example at time intervals from t2-t1, are stored by the microcontroller 16 and are filtered for evaluation.
- the first control connection 4 of the status LED is configured as an output by the microcontroller 16 and the first signal 4' is programmed to one, so that a current flows into the red LED, or
- the second control connection 6 of the status LED is configured as an input or configured as an output by the microcontroller 16 and the second signal 6' is programmed to zero so that no current flows into the green LED.
- the first control connection 4 (of the red LED) is also configured as an output by the microcontroller 16 and programmed to one or zero depending on the desired flashing sequence.
- the temperature measurement can be carried out between times tO and tl and between t2 and t3.
- the second signal 6' of the green LED is programmed to one and the first signal 4' of the Red LED configured as an input so that the temperature sensor is supplied with power and the temperature can be measured. Because the status LED is green when taking temperature measurements, it is important to keep the temperature measurement periods very short compared to the time intervals between measurements.
- FIG. 4 shows an analog first signal 4' during the temperature measurement. Depending on the sensor technology, it can also be digital.
- an existing voltage signal in this case the first signal 4', is used for two purposes.
- the signal 4' which is normally only used to control the red color of the status LED 1
- the firmware of the existing microcontroller 16 must be adapted on the software side.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22150531.6A EP4210439A1 (de) | 2022-01-07 | 2022-01-07 | Versorgungseinrichtung für eine notleuchte und aufrüsteinheit |
| PCT/EP2023/050206 WO2023131665A1 (de) | 2022-01-07 | 2023-01-06 | Versorgungseinrichtung für eine notleuchte und aufrüsteinheit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4461092A1 true EP4461092A1 (de) | 2024-11-13 |
Family
ID=79283173
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22150531.6A Withdrawn EP4210439A1 (de) | 2022-01-07 | 2022-01-07 | Versorgungseinrichtung für eine notleuchte und aufrüsteinheit |
| EP23700076.5A Pending EP4461092A1 (de) | 2022-01-07 | 2023-01-06 | Versorgungseinrichtung für eine notleuchte und aufrüsteinheit |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22150531.6A Withdrawn EP4210439A1 (de) | 2022-01-07 | 2022-01-07 | Versorgungseinrichtung für eine notleuchte und aufrüsteinheit |
Country Status (2)
| Country | Link |
|---|---|
| EP (2) | EP4210439A1 (de) |
| WO (1) | WO2023131665A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9317097U1 (de) * | 1993-11-09 | 1994-03-10 | Helix Solarelektronik GmbH, 89081 Ulm | Batteriespannungsanzeige mit DUO-LED |
| CN2490561Y (zh) * | 2001-01-16 | 2002-05-08 | 金博 | 一种双线温度传感器 |
| DE202006012864U1 (de) * | 2006-08-22 | 2006-11-02 | Möllering, Christian | LED-Leuchte |
| CA2766422C (en) * | 2009-06-05 | 2016-12-13 | Polynom Ag | Electronic circuit for converting a mains-operated luminaire into an emergency luminaire |
| CN203386081U (zh) * | 2013-08-01 | 2014-01-08 | 成都彩虹电器(集团)股份有限公司 | 一种蚊香液加热器的usb加热电路 |
| WO2016149549A1 (en) * | 2015-03-18 | 2016-09-22 | Iota Engineering Llc | Power over ethernet emergency lighting system |
| US10418847B2 (en) * | 2015-05-03 | 2019-09-17 | Fulham Company Limited | LED emergency lighting |
| US11026311B2 (en) * | 2017-06-19 | 2021-06-01 | Abl Ip Holding Llc | Emergency lighting system with power rollback |
-
2022
- 2022-01-07 EP EP22150531.6A patent/EP4210439A1/de not_active Withdrawn
-
2023
- 2023-01-06 WO PCT/EP2023/050206 patent/WO2023131665A1/de not_active Ceased
- 2023-01-06 EP EP23700076.5A patent/EP4461092A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023131665A1 (de) | 2023-07-13 |
| EP4210439A1 (de) | 2023-07-12 |
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