EP3330592B1 - Transportable and portable lamp and method for switching such a lamp - Google Patents

Description

The invention relates to a transportable lamp with a lamp housing and at least one lamp arranged in it, which lamp is fastened at the place of use and can be connected to a voltage supply device.

From practice, a number of lights are known that can be described as transportable or portable lights. Portable lights include, for example, flashlights, flashlights, hand lamps, hand lamps or head lamps. As a rule, these have an internal voltage supply device, such as a battery, an accumulator or the like. These portable lights are easy to transport and can be carried along by a user along a path for illumination, for example. There are other transportable lamps that can be flanged to a corresponding place of use, for example, or that can also be fastened to a mast, a pipe or a wall or a ceiling of a corresponding room by means of a pipe clamp or the like. Such transportable lights are connected to a corresponding power supply device after they have been attached at the place of use. However, such transportable lamps can only be used at the place of use, since it is generally not possible for a user to simply carry them along.

DE 102 09 031 A1 describes a flashlight with two light sources of different intensities. Both light sources are powered independently of one another by different energy stores. The first light source has a high intensity and the second light source has a lower light intensity.

EP 2 762 764 A2 describes a wall lighting unit with a base module and a lighting module. The base module has a connection unit for a power line, a converter, a control device, and a plug-in device. The lighting module has at least one LED light, a plug-in device receptacle, an electrical energy store and an activation device. If the connector and connector receptacle are mechanically and electrically connected to one another, the LED light is controlled by the mains cable via the connection unit.

U.S. 2014/139122 A1 describes a lighting system with a plurality of power supplies. A corresponding lamp can, for example, determine whether a first and second power supply is switched off, in order then to use a battery supply if necessary. In case of a Battery supply, the lighting intensity can also be changed if necessary. In addition to the various power supplies, there are corresponding switches that are permanently installed, as are the corresponding lights.

U.S. 2012/262093 A1 describes a lighting device with at least two power supplies, wherein a light intensity can be switched to a higher or lower level if an internal battery is used. The lighting is inside a building.

The invention is based on the object of improving a transportable/portable light according to the preamble of patent claim 1 in such a way that it can be carried by a user and can also be connected to a corresponding voltage supply device at the place of use, whereby at the same time the energy consumption while being carried by a user can be reduced.

This object is solved by the features of patent claim 1.

The invention is characterized in particular by the fact that the lamp has an in particular rechargeable backup voltage supply device and a switching device.

The backup power supply device is used while the light is being carried along, with a corresponding electrical connection to the power supply device at the place of use only being made there by the user of the light, for example. Furthermore, the switching device is used when the lamp is attached at the place of use and/or the electrical connection of the lamp to the voltage supply device is used

Switching the lamp to at least one other and in particular higher illuminance and/or other light distribution.
This means that while the lamp is being carried along, it has a relatively low level of illumination, which, however, is sufficient to illuminate the path or the like if the user moves accordingly. Only at the place of use and after attachment and/or electrical connection is there a switchover to a different and in particular higher illuminance, it also being possible to switch over to a different light distribution, for example in order to illuminate a larger area.

In a favorable embodiment, the backup voltage supply device can be designed as a battery or accumulator, for example. Such are usually easy to charge and can be arranged in the appropriate number or size within the light. The backup power supply can be charged, for example, at the place of use via the power supply device.

At the place of use, under the conditions mentioned above, there is then a corresponding switchover from the backup voltage supply device to the voltage supply device. This is usually more resilient, so that the light can be operated with a different and, in particular, higher illuminance.

For the lamp(s) of the lamp, lamps are preferred whose illuminance can be adjusted. Simple exemplary embodiments of such light sources are light-emitting semiconductor components such as LEDs, OLEDs or the like. These can be arranged individually or in groups as illuminants. If necessary, these can also be used with different colors.

In order to enable sufficient illuminance when using the transportable lamp, corresponding light-emitting semiconductor components are arranged in the form of strips, areal or the like and are designed in particular in the form of chip-on-board modules. These are easily adjustable in terms of their power and can also be operated, for example, in such a way that when using the backup power supply device only some of the light sources are in use, while when using the power supply device all light sources are used.

Furthermore, there is the possibility of dimming such lamps, for example when used with the backup power supply device, so that they have a lower illuminance than when used with the power supply device.

The lamp can be constructed in different ways, and in a simple exemplary embodiment, the lamp housing has at least one light exit opening and a detachable fastening device. The corresponding light sources are assigned to the light exit opening(s), with further light guide means such as reflectors, filters or the like also being able to be arranged inside the light, i.e. in the light housing.

The detachable fastening device is usually arranged on the lamp housing or can at least be connected to it. Such releasable fastening devices can be designed in different ways. Fastening devices that are simple and easy to use are, for example, magnetic or mechanical fastening devices. This means that the luminaire housing can be attached directly to a corresponding panel, mast or the like, for example by means of magnets. As an alternative or in addition to this magnetic attachment, a mechanical attachment can take place, for example by means of pipe clamps or other detachable attachment means.

In order in particular to be able to fasten the lamp to, for example, pipes or masts of different diameters, the fastening device can have at least two fastening means which can be arranged and optionally rotated at an angle that can be inclined relative to one another, in particular at a changeable angle. These are placed in a wedge shape on one side of the pipe or mast and then attached magnetically and/or mechanically, for example by means of a pipe clamp or the like.

After this attachment, the connection to the voltage supply device can be made accordingly.

There is also the possibility that the lamp does not have a corresponding fastening device directly, but that this is arranged, for example, in particular in the form of a mounting device at the place of use. Such a mounting device can be, for example, a mounting plate with holding magnets, with mechanical fastening means or other corresponding devices.

A simple way of electrically connecting the lamp and the power supply device can be seen in using a corresponding connecting cable with plug-in devices. It is also conceivable that the electrical connection is wireless. Such a wireless connection can be made inductively, for example. This means that when the lamp is attached at a certain point, there is an automatic corresponding inductive coupling between the voltage supply device and the corresponding device in the lamp housing. This automatic connection can then also trigger the corresponding switching device, i.e. switching to the other, in particular higher, illuminance takes place.

As already mentioned, particularly high levels of illuminance are generally not required on the way to the workplace. This has the further advantage that, for example, the backup power supply within the light is less loaded and has a longer service life, i.e. it also has to be charged less frequently.

Reference has already been made to the corresponding light-emitting semiconductor components, which can preferably be used as lighting means. However, it is also possible to use other light sources. However, some of these have the disadvantage that they are less efficient in converting energy into light or cannot be easily dimmed, see the different illuminance levels.

As soon as an electrical connection to the voltage supply device has been established, it can also prove advantageous if the electrical supply of the lighting means from the backup voltage supply device is interrupted at least once this electrical connection has been established. In other words, in such a case the light is supplied solely by the voltage supply device. This applies not only to the lamps, but also to all other devices within the lamp, see for example sensors or the like, which can be arranged in or on the lamp.

In order to enable simple switching, for example from the backup voltage supply device to the voltage supply device in this context, the switching device can have a switching device, by means of which a switching signal can be generated when the light is fixed at the place of use and/or when the light is connected to the voltage supply device, by means of which at least can be switched to the other and in particular higher illuminance. The corresponding switching device can be designed as a separate component of the lamp. Preferred However, the switching device can be part of an already existing driver and control device of the lamp. The driver device serves, for example, to operate the corresponding light-emitting semiconductor components or other lighting means, see fluorescent tube with ballast or the like.

The corresponding switching device can be designed in different ways. One of the above events must be detectable in order to be converted into a switching signal. Switching devices are conceivable, for example, which have at least one magnetic, inductive, tactile sensor or the like. A magnetic sensor can be used, for example, if magnets are used to attach the lamp, see the mounting plate with holding magnets mentioned above. These holding magnets are detected by the magnetic sensor and the already mentioned switching to the other illuminance takes place by means of the switching device. The sensor can also detect the connection to the voltage supply device, so that the switching device then becomes active when the voltage supply device supplies power. An inductive sensor can also be provided in order in particular to detect an inductive voltage supply device in the case of a wireless electrical connection. In addition, a corresponding positioning of the lamp relative to the voltage supply device or to the fastening device can be detected by means of the inductive sensor or also the other sensors. This means that the sensor can detect, for example, the voltage supply device, the mounting device or the like. Such a detection can also make it possible for the sensor to detect a predetermined mounting position at the place of use. If, for example, a corresponding mounting plate with holding magnets is used, then the position relative to the holding magnets and thus the corresponding mounting position can be detected by corresponding magnetic sensors of the light.

There is also the possibility that this predetermined mounting position is determined by mounting means of the mounting device and the lamp housing that contact and/or engage in one another. Such means are, for example, projections on a mounting plate and corresponding depressions in a housing wall of the lamp housing. In addition, the holding magnets of such a mounting plate can engage directly in corresponding depressions in the lamp housing. On the one hand, this simplifies assembly and, on the other hand, a corresponding assembly position is assumed at the same time.

It is also possible to use not only one sensor, but to use at least two sensors of the switching device to detect the assembly or also predetermined assembly positions and/or fastening at the place of use and/or electrical connection to the voltage supply device. This means that switching by means of the switching device only takes place if at least two sensors emit a corresponding switching signal. An example would be a sensor that detects the specified mounting position, for example, and another sensor that detects the electrical connection to the voltage supply device. If both of them emit corresponding switching signals, then switching takes place by means of the switching device, i.e. switching to the other, in particular higher, illuminance.

The corresponding transportable/portable lamp can also be designed to be explosion-proof per se, as well as with regard to its assembly or electrical connection to the power supply device, so that it can be used in potentially explosive areas. That is, the lamp according to the invention can also be a transportable Ex lamp. Furthermore, the lamp and in particular the lamp housing can be made of an appropriate material, such as abrasion-resistant, impact-resistant plastic and not shown in particular ergonomically designed lamp switch can be operated for example by latching slide or the like. These sliders are accessible from the outside of the light housing. It is also conceivable that a corresponding switchover from backup voltage supply devices to voltage supply devices takes place by manual switching on the lamp.

Advantageous exemplary embodiments of the invention are explained in more detail below with reference to the figures attached to the drawing.

Figur 1:

eine perspektivische Vorderansicht auf ein Ausführungsbeispiel einer erfindungsgemäßen transportablen/tragbaren Leuchte mit Rohrmontage;

Figur 2:

die transportable Leuchte nach Figur 1 in einer perspektivischen Seitenansicht;

Figur 3:

einen Schnitt durch eine Leuchte nach Figuren 1 und 2 entlang einer Längsachse;

Figur 4:

einen Schnitt durch eine Leuchte nach Figuren 1 und 2 entlang einer weiteren Längsachse;

Figur 5:

einen Längsschnitt analog zu Figur 3 bei einem weiteren Ausführungsbeispiel, und

Figur 6:

einen Schnitt analog zu Figur 4 beim weiteren Ausführungsbeispiel.

Show it:

Figure 1:

a perspective front view of an embodiment of a transportable / portable lamp according to the invention with tube mounting;

Figure 2:

the portable lamp figure 1 in a perspective side view;

Figure 3:

a section through a lamp Figures 1 and 2 along a longitudinal axis;

Figure 4:

a section through a lamp Figures 1 and 2 along another longitudinal axis;

Figure 5:

a longitudinal section analogous to figure 3 in another embodiment, and

Figure 6:

a cut analogous to figure 4 in the further embodiment.

figure 1 1 shows a perspective front view of an embodiment of a transportable/portable lamp 1 according to the invention. This has an approximately rectangular outline with a lamp housing 2 and a light exit opening 10 pointing forward. In this case, these components are LEDs. These are visible through a mask 17 with appropriate openings. The lamp housing 2 is attached to a place of use 4, here in particular to a partially shown tube 18.

In figure 2 is the light after figure 1 shown in a side perspective view. In particular, it can be seen that a voltage supply device 5 is fastened to the tube 18 by means of a tube clamp 19 and makes contact with the lamp housing 2 from behind. Corresponding fastening devices 11 with fastening means 12 for fastening the transportable lamp 1 to the tube 18 are also shown. In this case, the voltage supply device 5 is an inductive voltage supply device that forms a corresponding voltage supply for the lamp 1 wirelessly.

In Figures 3 and 4 are sections through the lamp 1 after Figures 1 and 2 shown along the respective longitudinal axes. To figure 3 the fastening devices 11 have two fastening means 12 pointing away from one another at an angle. These are arranged in the middle on the back of the lamp housing 2 and can be designed so that their angle to one another can be changed or rotated relative to one another or relative to the lamp housing 2 . Each fastener 12 has a corresponding magnet 21 thereon. Through this, see also figure 2 , the portable light will be 1 am Tube 18 held. The respective fasteners 12 may be adaptable to different diameters of the pipe 18 by varying the angle between them.

A switching device 14 in the form of a magnetic or tactile switch is shown in the middle between the two fastening means 12 . This detects a corresponding attachment of the lamp to the tube 18, see also figure 4 . A driver and control device 15 is arranged inside the housing. This controls, for example, the corresponding lighting means 3. In the exemplary embodiment shown, the lighting means are LEDs, which are arranged on a printed circuit board 20 either in strips or in rows and columns in a planar manner. The corresponding mask 17 is assigned to the light exit opening 10 , the light exit opening still being bordered by a cover 23 of the lamp housing 2 .

A backup power supply device 6 in the form of one or more batteries or accumulators 8 is arranged inside the lamp housing. These supply the lighting means 3 of the transportable lamp 1 when it is carried along by a user along a path. If the lamp is connected to the corresponding voltage supply device 5, the backup voltage supply device 6 is generally no longer used. The corresponding switching device 14 is part of a switching device 7 which causes such a switching between the voltage supply device and the backup voltage supply device. In this case, the switching device 7 is designed separately from the driver and control device 15 .

Next to the figure 3 another way of fastening the lamp at the place of use 4 is shown in dashed lines. In this case, corresponding fastening devices 11 on the lamp housing 2 are not required. Instead, a plate-shaped mounting device 13 is used, which is flat and can rest against the back of the lamp housing 2 . The mounting device 13 has one or more magnets 24 which serve to magnetically hold the lamp housing 2 and thus the transportable lamp 1 at the place of use 4 .

figure 4 shows another longitudinal section through lamp 1.

In this case it can also be seen that the voltage supply device 5 is located outside of the lamp housing 2 opposite a corresponding inductive voltage receiving device 22 . The voltage supply device 5 is detachably attached to the pipe 18 by means of a pipe clamp 19 . Furthermore, in figure 4 shown that example the driver and control device 15 can have a sensor 16 or is at least connected to it. The corresponding connection can also exist between sensor 16 and switching device 14 or switching device 7 .

In the embodiment according to FIG Figure 3 and 4 wirelessly, this also for the embodiment on the Figures 5 and 6 is applicable. Instead of such a wireless power supply, an electrical cable connection can also be made between, for example, an internal power supply unit of the lamp 1 and a corresponding external power supply device 5 .

The corresponding sensor 16 can determine a corresponding mounting position of the transportable lamp 1 alone or with additional sensors 16 . This also applies in connection with the plate-shaped mounting device 13, in which, for example, the sensor 16 can be a magnetic sensor for detecting the corresponding holding magnets 24.

In figure 5 is a cut analogous to figure 3 represented by another embodiment of a lamp. This differs from the exemplary embodiment figure 3 in particular due to the lack of a switching device 7 with switching device 14. Instead, in this case the switching device 7 is part of the driver and control device 15. It is analogous to that Figures 3 or 4 detects a connection to the power supply device 5 or an attachment of the lamp at the place of use and switched by means of the switching device from power supply device 5 to backup power supply device 6 or vice versa. Furthermore, the corresponding sensor can be part of the inductive voltage receiving device 22 so that it detects a supply from the voltage supply device 5 and thus implements a corresponding switching by means of the switching device 7 .

The corresponding attachment of the lamp housing 2 according to Figures 5 and 6 can be analogous to the Figures 3 and 4 and also by means of the additional in figure 3 illustrated mounting plate 13 and corresponding holding magnets 24 take place.

Also in figure 6 the power supply device 5 is fastened to the pipe 18 by means of a pipe clamp 19, for example.

Instead of the fastening device 11 shown, see also figure 2 , With appropriate fasteners 12, the portable lamp 1 can also be mechanical in addition or as an alternative be attached to the pipe 18, for example by means of a corresponding pipe clamp 19.

According to the invention, a transportable light is provided in which the light is operated from a backup power supply device 6 as long as it is not yet attached to the place of use and/or electrically connected to the power supply device 5 at the place of use 4 . The lamp can easily be carried along by a user along a path and used to adequately illuminate the path. If the transportable lamp 1 is at the place of use 4 and it is attached there using the appropriate fastening device and/or an electrical connection is made between the lamp and the voltage supply device 5, this is detected by the switching device 7 and converted into a switching command, which is carried out by means of driver and Control device 15 has a different illuminance and in particular a higher illuminance for the lamp at the location 4 . The switchover usually takes place automatically, i.e. simply upon corresponding detection of the attachment or the supply by the voltage supply device. Switching also takes place when a predetermined mounting position of the lamp at the place of use is detected by one or more sensors 16 . There is also the possibility that a corresponding switchover to the other and, in particular, higher illuminance level only takes place upon detection by two sensors. One of these sensors detects, for example, the attachment of the lamp at the place of use and the other sensor the correct or predetermined mounting position or the electrical connection to the power supply device. As already explained, this electrical connection can be made either by a cable or wirelessly and, for example, inductively.

Claims (14)

1. A transportable and portable lamp (1) with a lamp housing (2) and at least one lighting means (3) arranged therein, which lamp (1) can be fastened to the place of use (4) and connected to a voltage supply device (5), wherein the lamp (1) has a rechargeable replacement voltage supply device (6) and a switchover device (7), by means of which switchover device (7), when fastened to the place of use (4) and electrically connected to the voltage supply device (5), switching to at least one different and higher illuminance and different light distribution is possible;
   characterized in that
   the switchover device (7) has a switching device (14) which, when fastened to the place of use and electrically connected to the voltage supply device (5), generates a switching signal by means of which switching to at least the different and higher illuminance and different light distribution is possible, and the switching device (14) has at least one magnetic, inductive, or tactile sensor (16), wherein the sensor (16) can detect in particular the voltage supply device (5) or a mounting device (13).
2. The transportable and portable lamp according to Claim 1, characterized in that the replacement voltage supply device (6) is designed as a battery or accumulator (8).
3. The transportable and portable lamp according to Claim 1 or 2, characterized in that the lighting means (3) is formed by at least one or in particular a plurality of light-emitting semiconductor components (9), and that they are arranged in the shape of a strip, surface, or the like, and in particular are designed in the form of chip-on-board modules.
4. The transportable and portable lamp according to one of the preceding claims, characterized in that the lamp housing (2) has a light exit opening (10) and a cover (23) that surrounds it and in particular is transparent in the light exit direction and has a releasable fastening device (11), wherein the fastening device (11) is in particular a magnetic or mechanical fastening device.
5. The transportable and portable lamp according to Claim 4, characterized in that the fastening device (11) has at least two fastening means (12) which can be arranged at an angle to one another, in particular a variable angle, and are optionally rotatable.
6. The transportable and portable lamp according to Claim 4 or 5, characterized in that the fastening device (11) is arranged at the place of use (4) in particular in the form of a mounting device (13), wherein the mounting device (13) is designed in particular as a mounting plate with holding magnets.
7. The transportable and portable lamp according to one of the preceding claims, characterized in that a connection cable is provided for electrically connecting the lamp (1) and voltage supply device (5).
8. The transportable and portable lamp according to one of the preceding claims, characterized in that the electrical connection of the lamp (1) and voltage supply device (5) is wireless, wherein in particular an inductive voltage receiving device (22) is arranged within the lamp housing (10).
9. The transportable and portable lamp according to one of the preceding claims, characterized in that an electrical supply of the lighting means (3) is interrupted by the replacement voltage supply device (6), in particular at least as of the establishment of the electrical connection between the lamp (1) and voltage supply device (5).
10. The transportable and portable lamp according to one of the preceding claims, characterized in that the switchover device (7) is part of a driver and control device (15) of the lamp.
11. The transportable and portable lamp according to Claim 1, characterized in that a predetermined mounting position of the lamp (1) at the place of use (4) is detectable by the sensor (16), wherein the predetermined mounting position is determined in particular by mounting means of mounting devices (13) and lamp housing (2) that contact and/or interlock with one another.
12. The transportable and portable lamp according to one of the preceding claims, characterized in that the predetermined mounting position, and/or the fastening at the place of use (4), and/or the electrical connection of the lamp to the voltage supply device (5) is detected by at least two sensors (16) of the switching device (14).
13. The transportable and portable lamp according to one of the preceding claims, characterized in that the voltage supply device (5) can be accordingly fastened to the lamp housing and contacts the lamp housing (2), in particular from a rear side, wherein, when fastened to a pipe (18), in particular a pipe position (19) can be used.
14. A method for switching a transportable and portable lamp (1) according to Claim 1, having the following steps:

    i) operating the lamp (1) with a first illuminance while carrying it to a place of use (4);

    ii) switching the lamp (1) to a second illuminance higher than the first illuminance and to a different light distribution at the place of use (4), wherein switching automatically occurs when the lamp (1) is fastened at the place of use (4) and when the lamp (1) is electrically connected to a voltage supply device (5) at the place of use (4).

Images