EP1955415A1

EP1955415A1 - Apparatus for holding and making electrical contact with a luminaire in a headlight

Info

Publication number: EP1955415A1
Application number: EP06829364A
Authority: EP
Inventors: Harald Krieg; Erwin Melzner; Kerstin Schlegel; Thomas DÖRNER; Anton Hundhammer
Original assignee: Arnold and Richter KG; Arnold and Richter Cine Technik GmbH and Co KG
Current assignee: Arnold and Richter KG; Arnold and Richter Cine Technik GmbH and Co KG
Priority date: 2005-12-02
Filing date: 2006-11-30
Publication date: 2008-08-13
Anticipated expiration: 2026-11-30
Also published as: EP1955415B1; US20090170370A1; DE202005019369U1; US7867018B2; JP2009517820A; WO2007062878A1; JP4956545B2

Abstract

In order to hold and make electrical contact with a luminaire (4) which contains a glass vessel (41), a luminaire cap (42) and contact pins (43, 44) for supplying electricity, in a headlight, which contains a luminaire socket (7) for holding the luminaire cap (42) with plug sockets (81, 82) for holding the contact pins (43, 44) of the luminaire (4), a mechanical or optical device (9) is provided for monitoring the connection of the luminaire cap (42) to the luminaire socket (7), and detects and indicates the relative position of at least a part of the luminaire cap (42) with respect to the luminaire socket (7) during insertion of the luminaire cap (42) into the luminaire socket (7).

Description

Device for receiving and electrical contacting of a light source in a headlight

description

The invention relates to a device for receiving and electrical contacting of a light source in a headlamp according to the preamble of claim 1. An.

From DE 198 16 364 C2, a headlight for film, studio, stage lighting and other applications is known, which has a headlight housing, which serves to receive a luminous body, a transparent cover in the form of a protective screen or a lens disc and a reflector. As lamps or luminous bodies are burners or lamps, preferably single-ended discharge lamps, in a vertical or horizontal mounting position, that is, in each case perpendicular to the optical axis, or in the axial installation position, that is, in the optical axis used.

The lamps comprise a gas-filled glass body with electrodes arranged therein, a lamp base through which the supply lines are led to the electrodes, and two or more contact pins which are located at the end opposite the glass body the lamp base are arranged. The contact pins are inserted for connection to a voltage source in the sockets of a lamp socket connected to the lamp housing, with a close fit between the sockets and the contact pins for the high current levels of the lamp current to be transmitted is necessary.

At the same time, the contact pins serve, for example, discharge lamps which are socketed on one side as fastening means for the discharge lamp. Since the size of the discharge lamps and in particular the dimensions of the glass body and the lamp base increases with increasing lamp powers, the lamps have such a size for larger lamp powers that, in particular in the case of a horizontal mounting position of the discharge lamps, considerable forces are exerted on the power supply in addition to the power supply Mounting contacts acting contact pins are exercised.

These forces lead to a deterioration of the contact between the pins and the sockets of the lamp socket, resulting in an increased contact resistance in the transmission of the lamp current, a displacement of the lamp from the focus of the reflector and thereby a reduced light output and with a transfer of forces in the interior of the lamp is connected, which can lead to inadmissible voltages and finally to the failure of the lamp.

However, the disadvantages of the exclusive storage of the lamp via the contact pins affect not only the static range on the size of the lamp, but especially in the dynamic range when transporting a headlamp or its operation with jerky pivoting movements, shocks on the lamp housing and the like.

In order to use a lamp housing for lamps with different lamp cap diameters without replacement of a recording device and to use the pins of the lamps exclusively for the transmission of the lamp current, consists in the known from DE 198 16 364 C2 lamp housing, the receiving device of jaws that surround the lamp base and means the adjusting device in an open position in which the lamp cap is released, and in a locking position in which the lamp cap is fixed, are adjustable. The adjustment device consists of a pawl with two geometrically similar oblique surfaces. Chen, which rest on the upper and lower jaw so that when an adjustment of the pawl, the jaws are spread radially.

When you press the adjustment for opening and closing the jaws takes place at the same time opening and closing the pins of the bulb receiving receptacles, so easily removed by releasing the light socket by simultaneously releasing the contact pins on actuation of the adjustment for opening and closing the jaws or in the open position of the lamp holder, a light bulb can be used.

In the case of headlamps with single-cap lamps, the bulbs are inserted through the reflector from the front of the headlamp when the front cover is open and clamped in the bulb socket behind it. Only when the bulb centric and just applied to the end stop of the bulb socket the clamping device may be operated, otherwise damage to the bulb socket, the sockets or the bulb socket and the contact pins caused by breakage, flashovers or corrosion.

With increasing performance and thus size of the bulbs but problems occur in the correct insertion of the bulbs in the bulb holder of the headlight. On the one hand, the bulbs must be observed from the front when inserting into the bulb holder to the light, d. H. on mutually aligned contact pins of the bulb and the sockets of the bulb socket to use while on the other hand, the operator must hold the bulb with one hand and center and operate with the other hand, the clamping device whose controls are usually located on the side of the headlight housing , However, the operator can no longer be sufficiently far in front of the headlight with larger headlight housings with a correspondingly large headlight housing in order to simultaneously observe the straight onset of the light source and to be able to operate the clamping device.

Another problem is that on the one hand a for the reflection of the light emitted by the light optically cheaper and therefore the smallest possible reflector opening is desired, but on the other hand, the visual inspection upon insertion of the light in the light bulb holder difficult because it obstructs the view on the bulb holder, especially if the illuminant is already partially immersed in the luminous mittelfassung is used, so that the operator can no longer recognize whether the bulb is inserted or tilted correctly and consequently contact the pins of the bulb, the sockets of the bulb socket insufficiently.

A shift of the clamping device for non-positive and / or positive clamping of the bulb socket to the front of the headlight housing would not lead to any significant improvement in visual inspection when inserting the bulb in the bulb holder, since the visual inspection would be hindered anyway by a narrow reflector opening, so that only one An enlarged reflector opening would allow an improved visual inspection taking into account a deteriorated beam reflection and worse optical properties of the headlight.

For detecting a correct fit of a lamp cap in a lamp holder, it is known from JP 09-185978 A to provide a recess in the lamp base, at the bottom of a torsion spring is arranged, whose ends are bent upwards and engaging projections, which engage in corresponding engagement recesses in engage the inner wall of the lamp socket. If the lamp base is inserted into the lamp socket, this leads to the rotation of the torsion spring and upon engagement of the engagement projections in the engagement recesses, an acoustic signal is generated.

From JP 2000-340316 A a device for detecting an insufficient connection of a lamp cap of a discharge lamp with a lamp holder is known, which consists of a connecting cable and a mounting bracket, which can be connected to the lamp socket only if the lamp cap completely with the lamp socket is connected.

From DE 296 23 442 U1 a lighting device with a unilaterally quilted radiator is known in which a connection of the radiator is excluded with a socket when the radiator is unsuitable. For this purpose, the socket for receiving the radiator is connected to a sensor element which receives magnetic or optical pulses, while the socket facing part of the base is provided with a marking element which emits magnetic or optical pulses which are received by the sensor element after the marker has been stimulated to deliver the pulses by an excitation means. From GB 2072958 A a discharge lamp is known, the base of which is connected to a socket which contains a device for generating a high voltage from an AC voltage. The socket has a recess at the end of which a high voltage contact is arranged, which is connected to a protruding from the base of the discharge lamp pin. Furthermore, in the recess of the socket contacts for preheating the cathode as well as with a circumferential lead collar of the lamp cap corresponding contacts are provided with which a signal applied to the contacts of the socket signal is shorted. Short-circuiting the contacts signals that the lamp socket is correctly seated in the socket that releases the high voltage.

These known devices for detecting the correct fit of a lamp socket in a lamp socket or for blocking the insertion of an unsuitable lamp in a lamp socket are designed very complex and require appropriate facilities both on the lamp base and on the lamp socket, so that they only functional are when the lamp cap of the bulb is provided with the corresponding detection means. The elaborate design of the detection devices also leads to increased susceptibility to interference, which leads to erroneous detection, especially taking into account the high temperatures in the area of the lamp cap and the lamp socket.

Object of the present invention is to provide a device of the type mentioned above, which is very simple and insensitive to external influences and disturbances and a correct insertion of a light bulb in the Leuchtmittel- tion of a headlamp even with large headlight performance and in poor visibility conditions at at the same time ensures easy and safe handling.

This object is achieved by the features of claim 1.

The solution according to the invention, with simple and insensitive to external influences and interference means a correct insertion of a light source in the bulb holder of a headlamp even with large headlights and under poor visibility conditions at the same time easier and safer handling. Due to the continuous detection of the positioning of a light bulb socket, which is used in a bulb holder, the correct alignment and connection between the bulb socket and the bulb holder can be checked before reaching the end stop or end seat of the bulb socket in the bulb holder and corrected if necessary. Since the monitoring device is activated and actuated with the onset of the luminous means socket, it can be made very insensitive to external influences, which is of particular importance because of the high temperatures in the region of the luminous means socket and the luminous means holder for trouble-free operation. In addition, the monitoring device according to the invention provides the prerequisite for different embodiments of the monitoring device, each with matching operating principle.

The solution according to the invention is based on the consideration that the integration of a monitoring device into a headlight does not require a visual inspection of the light emitting front side of the headlight, so that an operator no minimum distance from the front of the headlight housing when correctly inserting the bulb in the bulb socket of Must comply with headlamps, but can focus on the insertion of the bulb in the bulb holder and operating the clamping device. The monitoring device signals the correct connection between the lamp socket and the lamp holder and thus optimum electrical contact of the pins with the sockets.

The monitoring device according to the invention makes it possible, while maintaining the functional principle, to detect the relative position of at least one part of the luminous means base with respect to the luminous means holder when inserting the luminous means base into the luminous means holder, several embodiments with different basic physical function.

A first embodiment consists of an optical position detection device, with at least one arranged on a side wall of the headlamp housing and / or a light source housing in the region of the bulb socket inspection opening which is aligned with at least one opening or recess of the bulb socket, wherein the opening or recess of the bulb socket in the contact area of Front side of the lamp socket with the bulb holder and in particular on the is arranged in the direction of use of the light source front edge of the bulb socket.

In this embodiment of a position detection device designed as an inspection opening, lateral observation of the light-emitting means holder and thus determination of a correct connection of the light-bulb socket to the light-emitting means holder is possible without requiring optical visual inspection from the front of the headlight. In order to ensure a sufficiently large field of view for checking the correct fit of the bulb socket, in this embodiment, a correspondingly large opening in the bulb holder or in the headlight housing with resulting problems in the shielding of unwanted scattered light, convection cooling and the protection of the headlight against spray - and jet water and electrical insulation problems are provided.

In an alternative embodiment, the optical position detection device comprises two opposing inspection openings, which are arranged on the side walls of the spotlight housing in the region of the illuminant mount, and which are aligned with openings or recesses of the illuminant mount opposite one another.

This embodiment allows a transillumination of the bulb holder via two opposing openings in the bulb holder and the headlight housing, so that also a lateral observation of the bulb holder and thus finding a correct connection of the bulb socket with the bulb holder is made possible without the need for optical visual inspection of the front of the headlight wherein the required recesses or openings can be kept smaller than in the aforementioned embodiment, so that the problems in terms of avoiding stray light, influencing the convective cooling, limiting the protection against spray and jet water and electrical insulation problems are reduced.

A further variant of an optical position detection device is characterized by at least one light guide, which is connected to one of two opposing openings in the light bulb socket and with a control element, so that light is supplied via an opening into the space to be observed and via the light guide into the light to be observed coupled to the control element is guided, for example, the light supply to the control element is interrupted in completely inserted into the bulb socket bulb socket.

Furthermore, the opening opposite the one optical waveguide can also be connected to a light guide that leads to the contact area, so that the light is also supplied to the room to be observed via an optical waveguide.

Preferably, the two are arranged opposite one another in the lamp holder in the contact area of the end face of the luminous means socket with the luminous means receptacle.

In this variant of an optical position detection device, the optical visual control of the operator is replaced by a simple visual display, in which the optical display darkens when correctly inserted up to the stop of the light bulb socket, thereby signaling the operator the correct fit of the bulb socket. Optionally, the visual display may be replaced or supplemented by an electrical signal device using or adding an opto-acoustic transducer. In this variant of an optical position detection device, however, additional optical and electronic components are required.

By connecting the opening or recess which leads light to the contact area or the light guiding the contact area to a light-injecting opening or optics at a favorable location on the outside of the headlamp housing, the required light can be coupled in to illuminate the connecting area between the illuminant base and the illuminant mount become.

Alternatively, the opening or recess that leads to the contact area or the light-guiding light guide can be connected to an auxiliary lamp for illuminating or illuminating the space to be observed in the illuminant mount, so that light is coupled into the optical waveguide with the auxiliary lamp Area of the bulb socket also without external light, ie illuminated even in complete darkness and thus ensures a visual or audible verification of the correct fit of the bulb socket. Alternatively, the control element can consist of an inspection opening or viewing optics arranged on the headlight housing or of an optoelectronic transducer connected to the headlight housing and of an optical and / or acoustic signal device and the optical fibers can be designed as glass or glass ceramic light guides.

Instead of an optical position detection device, a mechanical position detection device can be provided with a mechanical sensor inserted into the light-emitting means holder and connected to a display device.

This design allows by simple mechanical means a display for verifying the correct fit of a bulb in a bulb socket, without it being necessary for the operator to stand in front of the headlight when inserting the bulb. At the same time, the mechanical position detection device, in particular in conjunction with a mechanical display device, ensures that the correct position of the illuminant in the illuminant mount is checked even in the worst viewing conditions during the insertion of the illuminant base into the illuminant mount.

The sensor preferably consists of a stylus projecting into the luminous means holder and displaceable upon insertion of the illuminant base and connected to an indicator lever.

In this embodiment, the correct fit of the light source in the light bulb socket is no longer visually checked by a visual inspection, but can be done by simply scanning the position of the indicator lever already during insertion of the lamp socket in the bulb socket, so that the verification of the correct fit can also be done in the dark or under very poor visibility conditions. At the same time, this embodiment is characterized by its simple mechanism with high reliability.

The stylus is preferably guided to the end of the luminous means holder opposite the insertion opening of the luminous means holder and bears against a first lever arm of the rotatably mounted and spring-loaded indicator lever, the second lever arm of which is guided through an opening of a socket carrier and / or illuminant housing accommodating the illuminant socket. The second, serving as a pointer lever arm is preferably longer than the first, the stylus contacting lever arm, whereby a greater deflection of the serving as a pointer first lever arm is guaranteed to improve the accuracy of the display.

To display the correct seating of the luminous means base in the luminous means holder, in a first embodiment the second lever arm of the indicator lever can be arranged in a shaped part of the holder or of the illuminant housing which has a marking correlating with the displacement of the stylus when the illuminant base is inserted into the illuminant holder. In this embodiment, the marking may consist of an end stop of a recess receiving the second lever arm of the indicator lever.

Alternatively, the marking may consist of a matching with the contour of the end of the indicator lever nose, which is aligned with the direction of the deflection of the indicator lever with fully inserted into the bulb socket bulb socket.

To ensure that the bulb socket comes into contact with the stylus, the projecting into the insertion of the bulb holder end of the stylus is designed such that it abuts when inserting the bulb socket in the bulb holder to a portion of the bulb socket, the surface of the insertion into the the bulb holder projecting end of the stylus is greater than the diameter of the stylus.

In a specific embodiment, the stylus has a hook-shaped or mushroom-shaped projection projecting into the insertion opening of the luminous element holder, which can be displaced into a recess of the luminous element holder when the luminous means socket is inserted into the luminous means holder, and consists of ceramic, glass ceramic or glass.

In a further alternative embodiment, the stylus consists of a free-floating in the lamp housing and / or the bulb holder and guided in at least one recess of the lamp housing and / or the Leuchtmittelfassung ceramic lever connected to an outside of the lamp housing and / or the bulb socket indicator lever is. This particularly simple embodiment is resistant to high temperatures and ensures a correct function even under extreme external conditions, since due to the free-floating mounting of the ceramic lever no tilting occurs, so that the ceramic lever is adjusted when inserting the light source through the bulb socket and the outstanding from the bulb holder, with Indicator lever connected to the ceramic lever indicates the respective relative position of the lamp socket with respect to the bulb socket without visual contact.

These features of a mechanical position detection device ensure, on the one hand, that the insulating effect of the illuminant holder is maintained and the necessary creepage and clearance distances are not impaired, since the part of the mechanism of the mechanical position detecting device lying in the danger zone consists of a high-temperature insulator and, on the other hand, a large indicator lever can be used by the correct fit of the bulb socket in the Leuchtmittelfas- sung displayed extremely accurate and, if necessary, can also be coupled with additional signaling devices that indicate the correct fit reliable and reproducible.

Based on embodiments shown in the drawing, the features according to the invention and the advantages of the device according to the invention will be illustrated and explained in more detail. Show it:

Fig. 1 shows a section through a headlight for film, studio, stage and

Event lighting;

Figure 2 is a schematic-perspective view of a receiving device for a light source with a lamp base supporting the clamping device and sockets for receiving the contact pins of the lamp.

3 and 4 show a schematic perspective view of an optical position detection device with an inspection opening in the light-emitting means holder before and after insertion of a light source into the light-emitting means holder; 5 and 6 show a schematic-perspective illustration of an optical position detection device with a perforated light-emitting means for transillumination before and after the insertion of a light source into the light-emitting means;

7 and 8 show a schematic perspective view of an optical position detection device with light guides glued into openings of the light-emitting means holder before and after the insertion of a light-emitting means into a light-emitting means holder;

9 is a schematic perspective view of a first variant of a mechanical position detection device with inserted into a light source bulb;

FIG. 10 shows a section through the illuminant housing and the illuminant mount according to FIG. 9; FIG.

1 1 shows a schematic-perspective illustration of a luminous means holder with a freely floating mounted stylus designed as a ceramic lever;

Fig. 12 is a schematic-perspective side view of the position of a ceramic lever when inserting the contact pins of a lamp socket in the sockets of a lamp holder and

Fig. 13 is a partially sectioned side view in the positioning of

Bulb socket in the bulb socket according to FIG. 12.

1 shows a longitudinal section through a headlamp housing 1 of a headlamp for film, studio, stage and event lighting with a light-emitting front of the headlamp housing 1 final cover 2 in the form of a glass or lens disc and retaining jaws for receiving attachment elements such as diffusers , Filter discs, protective screens and the like. In the headlamp housing 1, a light source housing 5 for receiving a light source 4 in the form of a lamp or a burner and a reflector 3 is arranged, which the from the Leuchtmit- Tel 4 reflected light in the direction of the front cover 2 and has an opening 30 through which the bulb 4 is inserted.

The lamp housing 5 contains a lamp holder 7 with sockets for power supply, in which the contact pins of the lamp 4 are used, which has an elongated gas-filled glass body 41 and a lamp socket 42 with the contact pins.

2 shows, in a schematic perspective view, a socket carrier 50 which is connected to the lamp housing via a spring-elastic bearing and which receives the lamp socket 7 with the plug sockets 81, 82 for supplying power, into which the contact pins of the lamp, in particular a discharge lamp socked on one side 4 as in Fig. 1, are used.

To reduce or eliminate the force acting on the pins due to the length of the glass body 41 and its weight and the weight of the bulb socket 42 on the pins of the bulb forces that are transmitted to the bulb interior and there lead to excessive voltages and failure of the bulb and the electrical contact between the contact pins and the sockets 81, 82 of the lamp holder 7 can affect, and for improved support and clamping of the lamp 4 is a clamping device 6 with two jaws 61, 62 are provided, which comprise the lamp socket axially spaced apart and pinch positively and / or positively. The upper clamping jaw 61 and the lower clamping jaw 62 are each connected to two lever arms, which are connected to one another via transverse webs at their ends opposite the clamping jaws 61, 62 and rest flat against the light-emitting socket 7. Parallel to the transverse webs connecting rods between the lever arms of the upper and lower clamping jaw 61, 62 are provided, which are connected via resilient supports with the holder carrier 5.

Due to the resilient mounting of the lever arms and thus of the clamping jaws 61, 62, the receiving device is moved in the same plane in an example caused by shock movement of the bulb 4, so that the pins remain free of tension. By a likewise elastic support of the Leuchtmittelfas- sung 7 via a spring bearing against the socket carrier 5 is ensured that no forces are transmitted to the contact pins of the illuminant 4, so that the contact pins serve for the exclusive transmission of electrical power.

For adjusting the clamping jaws 61, 62 from an open position, in which the light-emitting base 42 is released for removing the Leuchtrmittels 4, in a closed and / or locked position in which the clamping jaws 61, 62 clamp the bulb socket 42 and the light source fix in position, an adjusting 63 is used with an adjusting member acting on the lever arms and an actuator for manual actuation of the adjusting device 63rd

To insert or replace a bulb, the jaws 61, 62 are opened by means of the adjusting 63 and the bulb 4 through the trapezoidal opening of the separate jaws 61, 62 from the front of the headlamp with its bulb socket 42 in the bulb holder 7 and thereby the pins of Illuminant 4 inserted into the sockets 81, 82 of the bulb holder 7. But only with just inserted into the bulb holder 7 bulb base 42 but on the one hand a centric arrangement of the bulb 4 in the bulb holder 7 between the jaws 61, 62 of the clamping device 6 and on the other hand, an optimal electrical contact between the pins of the bulb 4 and the sockets 81st , 82 of the bulb holder 7 to prevent damage caused by breakage, electrical flashovers or contact corrosion.

In order to ensure a correct seating of the luminous means 4 and thus an optimal alignment of the luminous means socket 42 to the illuminant holder 7, a monitoring device is provided according to the invention, which according to the schematic perspective views in FIGS. 3 to 8 as optical position detecting device and according to FIG and 10 may be formed as a mechanical position detection device and in unspecified embodiment as inductive, capacitive or ohmic position detection device.

FIGS. 3 to 8 show three different variants of an optical position detection device before the insertion of a light source 4 designed as a single-capped lamp and with the illuminant 4 inserted. 3 shows a schematic perspective view of a luminous means 4 with a gas-filled glass body 41, a luminous means base 42 and two contact pins 43, 44, which are used for electrical contacting in plug sockets 81, 82 of a luminous means holder 7. For optical control of the correct fit of the luminous means 4 and thus of the luminous means socket 42 or the contact pins 43, 44 in the luminous means holder 7 and the sockets 81, 82 is an optical positioning device in the form of an inspection opening in a side wall of the lamp housing 5 and / or headlight housing 1 and a recess 9 in the light-emitting socket 7, via which a lateral observation of the connection between the light-emitting base 42 and the light-emitting bulb socket 7 is possible. In order to be able to sufficiently see the field of view that is to be checked, both the inspection opening in the headlight or light source housing or the recess 9 in the light source socket 7 must be sufficiently large.

Fig. 4 shows when inserted into the light-emitting means 7 bulbs 4 directed to the connection between the bulb socket 42 and the insertion of the light-emitting device 7 field of view, which is made possible by the recess 9, the front in the insertion direction of the light source 4 in the light-emitting Edge is arranged.

Since this sufficient to ensure a sufficient field of view to control the connection of the bulb socket with the bulb capture inspection opening in bulbs or headlight housing problematic with respect scattered light, penetration of spray, influencing the Konvektionsküh- ment and the electrical insulation of the current-carrying parts of the bulb and is the light-emitting, is shown in Figs. 5 and 6 as an alternative, an optical positioning device in which instead of a larger inspection opening two opposing openings or recesses 10, 11 are provided in the lamp holder 7 and thus aligned in the lamp housing 5.

Both recesses or openings 10, 11 are arranged in the side walls of the luminous means holder 7 or of the illuminant housing 5, so that a lateral viewing is sufficient when the illuminant 4 is inserted into the illuminant holder 7, in which case the recess arranged on the side opposite the observer or opening 10 or 11 of the light supply and the viewer facing recess or opening 11 or 10 serves as a control opening or control recess. Of the formed between the recesses or openings 10, 11 light path forms an optical positioning device in the manner of a light barrier, which is interrupted with correct insertion of the bulb 4 in the bulb holder 7 and thereby indicates the operator the correct fit of the bulb socket 42 in the bulb holder 7 and so that the operator already has a control option when the illuminant 4 is placed on the illuminant mount 7.

In this embodiment as well, despite the significantly reduced cross-section of the recesses or openings 10, 11 compared to the inspection opening 9 in the embodiment according to FIGS. 3 and 4, problems arise with respect to light shielding, influencing the convection cooling, albeit to a lesser extent , Limitation of protection against spray and jet water and electrical insulation problems.

These problems are eliminated in the embodiment of an optical positioning device illustrated in FIGS. 7 and 8, in which light guides 12, 13 are glued into openings 14, 15 of the light-emitting means holder 7. The consisting of glass or glass ceramic light guides 12, 13 are guided to side walls of the headlight housing and serve on the one hand for light supply and on the other hand for positioning control by the coupled via the one light guide 12 and 13 in the light emitting 7 via the mutually aligned openings 14, 15th either interrupted when seated correctly or when the illuminant 4 is not inserted correctly in the illuminant mount 7, it strikes the opposite light guide 12 or 13.

The non-light-coupling optical fiber 12 or 13 is connected to an opening or optics in the headlight housing or with an opto-electrical converter and allows an immediate visual inspection by the operator or an acoustic and / or visual signaling with correct or incorrect Insertion of the light source 4 in the light-emitting device 7. In correctly inserted into the light emitting 7 bulb 4 no light is coupled via the non-light coupling light guides 12 and 13, so that the clamping device 6 of FIG. 2 for mechanical securing of the bulb 4 is closed and the headlight can be put into operation.

The embodiment illustrated in FIGS. 7 and 8 before the insertion of the luminous means 4 into the illuminant mount 7 or into the illuminant mount 4 inserted into the illuminant mount 7. tion eliminates the problems in terms of light shielding, influencing the convection cooling, limiting the protection against spray and jet water and the electrical insulation, but requires additional component expenditure in terms of optical and electronic components.

A first embodiment of a mechanical position detection device is shown in FIGS. 9 and 10, which makes possible the correct insertion of a light source into a light-emitting socket of a headlight, even under poor visibility conditions or in complete darkness, compared with the optical position detection devices and inexpensive means can be realized.

According to the schematic perspective view of FIG. 9 and the sectional view of FIG. 10, the mechanical position detection device consists of a mechanical sensor in the form of a stylus 21, which is inserted in a longitudinal bore 70 of the luminous means holder 7 and has a hook-shaped projection 211 which abuts is arranged in the insertion direction A of the lamp front end of the lamp holder 7 and protrudes into the insertion opening to the chamber 71 for receiving the electrical contacts of the sockets. The contact pin 21 has at its opposite end a stop 212, which bears against a contact surface of a first lever arm 221 of an indicator lever 22, which is rotatably supported around a bearing 23 in a position detection housing 20. An outgoing from the bearing 23 second lever arm 222 of the indicator lever 22 protrudes through a cutout 51 of the lamp housing 5 and is supported on a spring 24 which is arranged in a recess of the housing 20.

When inserting a light source in the bulb holder 7 of the stylus 21 is displaced in the insertion direction A in a recess 72 in the chamber 71 of the bulb holder 7 and at the same time deflected the indicator lever 22 against the action of the spring 24 in the direction of the indicator lever 22 angekagenen arrow B. , If the illuminant in the illuminant mount 7 is correctly seated, the indicator lever 22 bears against an end stop 52 of the recess 51 or comes into coincidence with a marking formed on the illuminant housing 5 and thus signals the operator the correct fit of the illuminant or of the illuminant base The illuminant mount 7. The marking 3 integrally formed on the illuminant housing 5 preferably consists of a nose 53 which coincides with the contour of the end of the indicator lever 22 and which is completely in the direction of the deflection of the indicator lever 22 in the luminous means. telfassung 7 inserted lamp socket and thus light source is aligned so that both a deviation from and the achievement of the correct fit of the bulb in the light-emitting socket 7 can be felt without visual inspection.

In the embodiment of a mechanical position detection device shown in FIGS. 9 and 10, the light-emitting device holder consists of a ceramic material and the stylus 21 mounted longitudinally displaceable in the direction of insertion A for reasons of electrical insulation and high temperature resistance of ceramic, glass ceramic or glass. As a result, the insulating effect of the light-emitting means holder 7 and the necessary creepage distances and clearances are obtained, since the part of the mechanical position detection means located in the danger zone consists of a high-temperature insulator.

As a result of the leverage of the indicator lever 22, whose first lever arm 221 is considerably shorter than the second lever arm 222, the longitudinal displacement of the stylus 21 with a high gear ratio leads to the display of an exact stop of the luminous means in the luminous means holder 7.

In a further embodiment, the mechanical position detection device shown in FIGS. 9 and 10 can be coupled to a mechanism which prevents the closing of the clamping device 6 according to FIG. 2 or the power supply to the light-emitting socket 7, as long as the light source does not correctly enter the light source Illuminant holder 7 is inserted.

The illustrated in FIGS. 11 to 13 second embodiment of a mechanical position detection device includes a free-floating mounted in the bulb holder ceramic lever 25 in particular square cross-section. The ceramic lever 25 protrudes through a rectangular slot formed as a recess 73 from the light emitting 7 and is laterally offset from a ridge 74 which corresponds to a recess 45 at the lower end of the bulb socket 42 and connected to a cable 16 for power supply sockets 81, 82 separates, which receive the contact pins 43, 44 at the lower end of the bulb socket 42. The projecting through the recess 73 from the bulb holder 7 end of the cantilevered ceramic lever 25 has a cylindrical end, which is suitably connected to an indicator lever which is guided to the outside of the light-emitting device not shown. The solution according to the invention can additionally be connected to an electrical signal device with, for example, an inductive-electronic, capacitive-electronic or ohmic-electronic converter, which closes a monitoring path when the illuminant holder is correctly inserted into the luminous means holder and a signal for further evaluation to an optical or acoustic display or, for example, to a device for blocking a non-positively and / or positively connectable with the bulb socket clamping device and / or means for interrupting the power supply to the sockets of the bulb socket emits at a poor fit of the bulb in the bulb holder.

LIST OF REFERENCE NUMBERS

1 headlight housing

2 cover element

3 reflector

4 bulbs

5 bulb housing

6 clamping device

7 bulb holder

9 recess

10, 11 openings or recesses

12, 13 light guides

14, 15 openings

16 cables

20 position detection housing

21 stylus

22 indicator lever

23 bearings

24 spring

25 ceramic levers

30 reflector opening 1 gas-filled glass body 2 illuminant base 3, 44 contact pins 5 recess

51 section

52 end stop

53 nose

61, 62 jaws

63 adjusting device

70 longitudinal bore

71 chamber

72, 73 recess

74 footbridge

81, 82 sockets

211 hook-shaped projection 212 stop

221 First lever arm

222 Second lever arm

Claims

claims

1. A device for receiving and electrical contacting of a light source (4) having a glass vessel (41), a luminous means socket (42) and contact pins (43, 44) for

Power supply contains, in a headlight, the bulb holder (7) for

Receiving the illuminant base (42) with receptacles (81, 82) for receiving the contact pins (43, 44) of the illuminant (4), which comprises means (9 - 15;

20-24) for monitoring the connection of the luminous means socket (42) with the luminous means holder (7),

characterized,

in that the monitoring device consists of a device for detecting the relative position (9-15; 20-24) of at least part of the illuminant base (42) in FIG

Reference to the bulb holder (7) when inserting the bulb socket (42) in the bulb holder (7).

2. Apparatus according to claim 1, characterized by an optical position detection device (9-15) with at least one on a side wall of the headlight housing (1) and / or a light source housing (5) in the region of the light-emitting socket (7) arranged inspection opening, which with at least one opening or recess (9; 10, 11; 14, 15) of the illuminant mount (7) is aligned.

3. A device according to claim 2, characterized in that the opening or recess (9) of the lamp holder (7) in the contact region of the end face of the lamp socket (42) with the light-emitting means (7) is arranged.

4. Apparatus according to claim 2 or 3, characterized in that the opening or recess (9) of the light-emitting means (7) is arranged on the front in the direction of insertion of the light-emitting means of the bulb holder (7).

Device according to at least one of the preceding claims 2 to 4, characterized in that the optical position detection device comprises two opposing, on the side walls of the headlamp housing (1) and / or a light source housing (5) in the region of the light-emitting socket (7) arranged inspection openings, the aligned with opposite openings or recesses (10, 1 1, 14, 15) of the lamp holder (7).

6. The device according to at least one of the preceding claims 2 to 5, characterized in that the optical position detection device comprises at least one light guide (12, 13) with one of two opposing openings (14, 15) in the light emitting socket (7) and connected to a display element.

7. The device according to claim 6, characterized in that the one light guide (13) opposite the opening (15) is connected to a light to the contact area supplying light guide (12).

8. The device according to at least one of the preceding claims 5 to 7, characterized in that the two opposing openings (14, 15) in the illuminant holder (7) in the contact region of the end face of the illuminant base (42) are arranged with the illuminant holder (7) ,

9. Apparatus according to claim 6, characterized in that the display element consists of a headlight housing (1) arranged viewing opening or viewing optics.

10. The device according to claim 6, characterized in that the display element consists of a with the headlight housing (1) connected opto-electronic converter and an optical and / or acoustic signal device.

11. The device according to at least one of the preceding claims 2 to 10, characterized in that the light to the contact area supplying opening or recess (10, 14) or the light to the contact area supplying optical fibers

(12) is connected to a light coupling opening or optics in the headlight housing (1).

12. The device according to at least one of the preceding claims 2 to 11, characterized in that the light-coupling opening or recess (10, 14) or the light-supplying light guide (12) with an auxiliary lamp for illumination or fluoroscopy of the relevant part of the illuminant holder ( 7) is connected.

13. The device according to at least one of the preceding claims 6 to 12, characterized in that the or the light guide (12, 13) consists of glass or glass ceramic light guides or exist.

14. Device according to claim 1, characterized by a mechanical position detection device (20-24) with a mechanical sensor inserted into the light-emitting means holder (7) and connected to a display device.

15. The apparatus according to claim 14, characterized by a in the lamp holder (7) projecting and displaceable upon insertion of the lamp socket (42), with an indicator lever (22) connected to the stylus (21).

16. The apparatus according to claim 15, characterized in that the feeler pin (21) to which the insertion opening of the light-emitting means (7) opposite end of the light-emitting socket (7) is guided and on a first lever arm (221) of the rotatably mounted and spring-loaded indicator lever ( 22) is applied, the second lever arm (222) through a cutout (51) of the bulb holder (7) accommodating socket carrier (50) and / or the lamp housing (5) is guided.

17. The apparatus according to claim 16, characterized in that the second lever arm (222) is longer than the first lever arm (221).

18. The apparatus of claim 15 or 16, characterized in that the second lever arm (222) of the indicator lever (22) in a molded part of the socket carrier

(50) or the lamp housing (5) is arranged, which has a correlating with the displacement of the stylus (21) upon insertion of the lamp socket (42) marking.

19. The apparatus according to claim 18, characterized in that the marking of an end stop (52) of the second lever arm (222) of the indicator lever (22) receiving recess (72).

20. The device according to claim 18, characterized in that the marking consists of a with the contour of the end of the indicator lever (22) matching nose (53) with the direction of the deflection of the indicator lever (22) at completely in the light emitting socket (7 ) inserted illuminant base (42) is aligned.

21. The device according to at least one of the preceding claims 15 to 20, characterized in that in the insertion opening of the light-emitting means (7) projecting end of the stylus (21) is designed such that when inserting the illuminant socket (42) in the illuminant socket ( 7) abuts against a part of the lamp holder (7).

22. The apparatus according to claim 21, characterized in that the surface of the in the insertion opening of the bulb holder (7) projecting end of the stylus (21) is greater than the diameter of the stylus (21).

23. Device according to claim 20 or 21, characterized in that the stylus (21) has a hook-shaped or mushroom-shaped projection (211) projecting into the insertion opening of the illuminant mount (7), which is inserted in the illuminant mount (7) ) in a recess (72) of the Leuchtmittelfas- solution (7) is displaceable.

24. The device according to claim 15, characterized in that the stylus from a free-floating in the lamp housing (5) and / or the Leuchtmittel- socket (7) mounted and in at least one recess (73) of the lamp housing (5) and / or the lamp holder (7) guided ceramic lever (25).

25. The apparatus according to claim 24, characterized in that the ceramic lever (25) is connected to an outside of the light-emitting means housing (5) and / or the light-emitting means (7) arranged indicator lever.

26. Device according to at least one of the preceding claims 20 to 28, characterized in that the stylus (21) consists of ceramic, glass ceramic or glass.

27. The device according to at least one of the preceding claims, characterized in that the lamp holder (7) consists of ceramic, glass ceramic or glass.