DE202010008186U1 - Led lamp - Google Patents

Abstract

LED lamp (1, 15) with a housing (2), in which a plurality of light-emitting diodes (7) and an associated electrical control (10) are provided, the control (10) via power supply lines (11, 12) with connected to the housing (2), for connection to at least one LED lamp socket (19) of an LED lamp holder (18) provided connection contacts (5, 6) connected, characterized in that on the LED lamp (1, 15) at least one mechanically and / or manually operable switch (13; 16, 17) is provided in order to separate or close the electrical connection between at least one of the connection contacts (5, 6) and the control (10).

Description

The The invention relates to an LED lamp according to the preamble of the claim 1.

A generic LED lamp in the form of a known fluorescent tube discloses the US 7,114,830 B2 , The LED lamp has at both ends a terminal socket for common fluorescent tube mounts, each with two pins on each socket. Between the terminal sockets a transparent housing is arranged, in which a plurality of light-emitting diodes are arranged. These are supplied by a rectifier with DC voltage. The rectifier is in turn fed by a transformer which is provided either by two mains-connected pins of a socket or by the pins of respectively opposite sockets with mains AC voltage.

Corresponding LED lamps are also off DE 20 2010 000 890 U1 and DE 20 2008 015 804 U1 out.

adversely in the known LED lamps is that the power pins through Connect to the mains immediately under mains voltage. Because in the Unlike conventional fluorescent tubes, at which only a gas discharge in the fluorescent tube a electrically conductive connection of both pins brought about, This happens with the lamps by electrical contacting of the Connection pins to the mains. Even if the safety regulations for the replacement of lamps that provide the associated Lamp sockets and brackets must be switched off, so the associated fuses are removed, this will Often not made by private users. Especially when a defective LED lamp must be replaced, the replacement can be when replacing do not readily determine if the lamp holder still under tension or not. Is the replacement wrongly assume that there is no voltage, and he takes the damaged LED lamp out of the socket, it may still be that the both permanently connected to each other electrically conductive pins on one connection side or on opposite side Connection sockets are still under tension. The interchangeable person intervenes now to the free from the housing of the LED lamp outstanding Pins, he gets an electric shock with danger of health and life.

Just for long, trained as LED tubes LED lamps is usually both when removing so also when inserting the one connection socket of the LED tube in the lamp socket plugged in while the opposite terminal socket still exposed. Subsequently, the still exposed Terminal socket in the opposite end of the lamp socket plugged in. Is this an LED light tube? with on both sides, electrically conductive with each other connected pins, is the potential hazard high.

Though have conventional sockets for LED tubes or fluorescent tubes on a rotatable mount part, the first by screwing the tube a connection to Mains voltage produces, but can not be guaranteed that this always works or that the operator operates it correctly.

Of the The invention is therefore based on the object to provide an LED lamp, which overcomes the above-mentioned disadvantages and a simple, Danger-free assembly and disassembly of an LED lamp in a lamp holder allows.

These Task is by an LED lamp with the features of the claim 1 solved. Advantageous embodiments and expedient Further developments of the invention are specified in the subclaims.

The initially mentioned generic LED lamp is according to the invention, characterized in that the LED lamp at least one mechanically and / or manually operable Switch is provided to the electrical connection between to disconnect at least one of the connection contacts and the control or close. This can cause accidental under-voltage both connection contacts of the LED lamp simply and safely prevented become.

In According to an advantageous embodiment, the LED lamp can be mutually connected have opposite first and second terminal sockets, wherein a first switch is disposed between one on the first terminal socket first connection contact and a first connection of the control is provided. In a preferred embodiment, a second switch between a second connection contact arranged on the second connection socket and a second connection of the control can be provided.

are the first switch and / or the second switch can be actuated manually, so can easy by the user when mounting or dismounting the LED lamp the connection between the two connection contacts be safely separated. The user does not have to worry about it about whether the LED lamp may over the lamp socket is energized or not.

In a further advantageous embodiment can Switch pins of the first and second switches between one the connection sockets outstanding open position and one less far from the terminal sockets outstanding or whole movable closed position in the connection sockets be. As a result, the LED lamp during assembly / disassembly can easily independently switched off by the user, by the switches of both terminals only through the complete Insert into the lamp holder to be closed. The user thus does not have to press a switch, this can so do not forget it.

In an advantageous development of this embodiment can the switching pins spring-loaded in the protruding from the connection sockets be kept open position. It will therefore be easy Make sure that the switches - except in the final mounted position in the holder - always in the open position or when removing the LED lamp can be moved out of the holder there.

In In an alternative embodiment, the LED lamp can have a connection socket having two terminals, with a switch between a first connection contact and a first connection of the control is provided.

This can be advantageous if the LED lamp as LED tube light is formed, but only from a lamp socket over a terminal socket is supplied with power, or if the LED bulb in the form of a light bulb, glow plug, Spot or spotlight shape etc. is formed and inherently only having a terminal socket.

Also In this embodiment, the switch can be manually operated Be switch or in an alternative embodiment between one protruding from the terminal socket open Position and one less far from the terminal socket outstanding or completely retracted in the connection socket closed position movable be.

Around the user the switching state of the at least one switch and / or to be able to display a voltage at the connection contacts, a display means, advantageously one in one of the power supply lines switched display LED, be provided. Alternatively, as Display means also a clear identification of the switch position be provided, for example, a "0" for "off" and "1" for "on", or also colored markings, for example a red visible switch part for switch "on".

decisive for the invention is that by the user himself or be prevented automatically by the formation of the switch can make both contacts simultaneously on the external supply voltage issue.

Further Particular features and advantages of the invention will become apparent the following description of preferred embodiments based on the drawings. Show it:

1 a schematic view of a first LED lamp according to the invention;

2 a schematic diagram of the LED lamp 1 ;

3 a schematic view of a second LED lamp according to the invention;

4 a schematic diagram of the LED lamp 3 ;

5 a detailed view of a socket of the LED lamp 3 ;

6 the socket of the LED lamp inserted into a lamp holder 5 ,

In 1 is an LED lamp according to the invention 1 shown. The LED lamp 1 In a conventional manner, an elongated, tubular housing 2 with connection sockets 3 and 4 on. At least part of the housing may be made of transparent material. On the pedestals 3 . 4 are first and second connection contacts 5 and 6 provided, which in the form of known per se pins 5a . 5b respectively. 6a . 6b are formed.

The pins 5a . 5b . 6a . 6b serve in a conventional manner on the one hand for establishing a mechanical connection with a known per se, not shown lamp holder and their opposite sockets, which inter alia DIN EN 60081 respectively. DIN EN 60901 can be trained. On the other hand make the connection contacts 5 . 6 the connection to the mains voltage forth, which is the usual in Germany 230 V AC voltage. The LED lamp 1 but can without detriment to the invention for other supply voltages with other voltage RMS values and frequencies, such as 110 V and 60 Hz, or for DC voltage. be provided.

In the case 2 are a variety of light emitting diodes 7 together on a circuit board 8th arranged and interconnected in a known manner. The board 8th is via direct voltage lines 9 with a control 10 connected. The control 10 is formed in a conventional manner and provides for the operation of the LEDs 7 necessary DC voltage ready. The control 10 contains a transformer with downstream rectifier. Examples of such controls 10 are apparent from the above publications.

The control 10 is in turn via a first power cord 11 and a second power cord 12 with the first connection contract 5 or the second connection contact 6 electrically conductively connected. In the first power cord 11 is a manually operated switch 13 provided with the first power cord 11 can be interrupted. The desk 13 can be designed here as a button, pressure switch, rocker switch, etc. Because the connection contacts 5 . 6 via the mains connection cables 11 . 12 are connected to a primary coil, not shown, of the transformer, via the switch 13 the direct electrical connection between the connection contacts 5 . 6 Further, a display means 14 in the form of a preferably colored, in particular red display LED 14 provided, which in the power cord 11 between switches 13 and control 10 is provided. This shows when inserted into the lamp holder LED lamp 1 on, whether the switch 13 is open or closed, so whether at both terminals 5 . 6 Voltage is applied or not. The indicator LED 14 may also be at another location in the power cord 11 or 12 be provided.

2 shows a simplified electrical diagram of in 1 shown LED lamp 1 , The housing 2 is here indicated only schematically and contains as to 1 already described, the board 8th with the multitude of light-emitting diodes 7 , The DC power lines 9 go from board 8th for control 10 , which in turn via the power cord 11 with the first connection contact 5 and via the second power cord 12 with the second mains connection contact 6 connected is. The switch is in the first power cord 11 provided, and the indicator LED 14 in which between control 10 and switches 13 standing part of the power cord 11 ,

By switching off the switch 13 becomes the electrical connection between terminal contacts 5 and control 10 and thus also to the connection contact 6 safely interrupted. Thus, the user can easily make sure that the connection contacts 5 . 6 are not electrically connected to each other, in particular so an exposed base 4 with exposed connection contacts 6 or vice versa is not under tension. This would be indicated by the LED indicator 14 clearly signaled.

An alternative lamp according to the invention 15 demonstrate 3 to 6 , which essentially by the formation of the switch of the in 1 and 2 differs shown embodiment. Below, therefore, the differences are essentially described, the same parts are provided with the same reference numerals.

The power supply cables 11 and 12 lead here directly to mechanically operated switches 16 and 17 which for interrupting or establishing the electrical conductive connection between the power supply lines 11 . 12 and the connection contacts 5 respectively. 6 serve. The switches 16 . 17 are designed as NO contacts and are in the open, in 5 shown state spring-operated from the connection sockets 3 . 4 out. The operation of the switches 16 . 17 is described in detail below with reference to 5 and 6 explained.

Is the lamp 15 not in an in 6 shown lamp holder 18 used, the switch pins are the switch 16 . 17 pushed outward by springs, not shown, the switches 16 . 17 are therefore electrically open.

Now, first the left connection contacts 5 in a lamp socket 19 the lamp holder 18 used. This will be the switching pin of the switch 16 against a stop of the lamp socket 19 and against the spring force in the connection socket 3 pressed and thus the switch 16 electrically closed. The desk 17 on the other side of the lamp 15 remains spring-loaded open, so no electrically conductive connection of terminal contact 6 to the power cord 12 and thus via the control 10 or mains connection cable 11 to the connection contact 5 consists. Only by inserting the other connection contact 6 in an opposite, not shown, lamp socket on the other side of the lamp holder 18 becomes the switch 17 in the same way as the switch 16 closed. As a result, an electrically conductive connection between the connection contacts 5 . 6 and the control 10 produced. Stand the lamp holders 19 under tension, so we powered the lamp and lit.

The execution after 3 to 6 has the advantage that the user does not care about turning off the switch when running 1 and 2 but must be able to assemble or disassemble a lamp without any risk.

Instead of the embodiment of an LED lamp shown in the figures and described in detail above 1 respectively. 15 Other forms can also be used as the LED tube, for example in the form of a conventional light bulb. Glow plug, spotlight or spotlight, etc. The decisive factor here is that in the invention, both terminals are never applied simultaneously to the supply voltage when the switch 13 or at least one of the switches 16 . 17 is off.

In the simplest case, especially if the lamp 1 . 15 from the outside already supplied with DC voltage, it can be in the control of a simple through-connection of the power cables 11 . 12 to the light emitting diodes 7 act.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - US 7114830 B2 [0002]
• - DE 202010000890 U1 [0003]
• - DE 202008015804 U1 [0003]

Cited non-patent literature

• - DIN EN 60081 [0027]
• - DIN EN 60901 [0027]

Claims (11)

Led lamp ( 1 ; 15 ) with a housing ( 2 ), in which a plurality of light-emitting diodes ( 7 ) and an associated electrical control ( 10 ) are provided, the control ( 10 ) is connected via power cords ( 11 . 12 ) with on the housing ( 2 ) for connection to at least one LED lamp socket ( 19 ) of an LED lamp holder ( 18 ) provided connection contacts ( 5 . 6 ), characterized in that on the LED lamp ( 1 ; 15 ) at least one mechanically and / or manually operable switch ( 13 ; 16 . 17 ) is provided to the electrical connection between at least one of the terminal contacts ( 5 . 6 ) and the control ( 10 ) to separate or close. Led lamp ( 1 ; 15 ) according to claim 1, characterized in that the LED lamp ( 1 ; 15 ) opposing first and second terminal socket ( 3 . 4 ) for mutually opposite LED lamp holders ( 19 ) of the LED lamp holder ( 18 ), wherein a first switch ( 13 ; 16 ) between one on the first connection socket ( 3 ) arranged first terminal contact ( 5 ) and a first connection of the control ( 10 ) is provided. Led lamp ( 1 ; 15 ) according to claim 2, characterized in that a second switch ( 17 ) between one on the second connection socket ( 4 ) arranged second terminal contact ( 6 ) and a second connection of the control ( 10 ) is provided. Led lamp ( 1 ; 15 ) according to claim 2 or 3, characterized in that the first switch ( 13 ) and / or the second switch are manually operable. Led lamp ( 1 ; 15 ) according to claim 2 or 3, characterized in that switching pins of the first and second switches ( 16 . 17 ) between one of the connection sockets ( 3 . 4 ) outstanding open position and one less far from the connection sockets ( 3 . 4 ) outstanding or completely in the connection sockets ( 3 . 4 ) retracted closed position are movable. Led lamp ( 1 ; 15 ) according to claim 5, characterized in that the switching pins spring-operated in the from the terminal sockets ( 3 . 4 ) outstanding open position. LED lamp according to claim 1, characterized that the LED lamp has a connection socket with two connection contacts wherein a switch between a first terminal contact and a first terminal of the drive is provided. LED lamp according to claim 7, characterized that the switch is a manually operable switch. LED lamp according to claim 7, characterized that the switch between a protruding from the terminal socket open position and one less far from the connection socket outstanding or completely sunk in the terminal socket closed Position is movable. Led lamp ( 1 ; 15 ) according to one of the preceding claims, characterized in that at least one display means ( 14 ) for indicating the switching state of the at least one switch ( 13 ) and / or a voltage at the connection contacts ( 5 . 6 ) is provided. Led lamp ( 1 ; 15 ) according to claim 10, characterized in that the display means a in one of the power supply lines ( 11 ) switched display LED ( 14 ).