DE102005054031B4 - High-performance luminaire with cooling jacket - Google Patents

Abstract

High-power luminaire for generating a directional light beam of high intensity with a high-performance illuminant (15) arranged in a housing (11) and with cooling means, the high-power illuminant (15) being set back with a corresponding reflector (16) from a light exit opening of the housing (11), characterized in that a heat shield (24) on the inner peripheral surface of the housing (11) of the light exit opening adjacent at least to the reflector (16) adjacent and a light emitting space (13) is arranged completely radially surrounding, wherein the heat shield (24) on its inner peripheral surface a coating for absorbing the radiation power, and wherein the heat shield (24) by means of spacers (25, 26) from the housing (11) is spaced.

Description

The The invention relates to a high power luminaire for producing a directed light beam high intensity with one in a housing arranged high-performance and with coolants, the high-performance illuminant with an associated Reflector set back from a light exit opening of the housing is arranged.

such High power lights are used when the light is high intensity with good directional characteristics is needed. In particular, be Such high-performance lights in the stage area for lighting, at show and mass events to create lighting effects, especially in the open air, as well as in the architectural Area used for lighting buildings or the like. Often such High-performance luminaires of their light exit opening adjacent to additional modules for special Provided effects. These add-on modules can be color change agents of the light beam or so-called shutter to limit the light beam.

Because of high intensity of the light beam and in particular also because of the high power consumption of the high-performance luminous means to generate the high light intensity, the housing and heat Even the additional module alone by the radiation output of the Bulb on strong, so here when touching of the housing the risk of burns exists.

From the GB 1 201 894 A is known a studio lamp, in whose housing a recessed reflector is arranged. The light source is arranged in front of the reflector and is thus set back even with a smaller distance to the light exit opening. For cooling, air can flow from bottom to top through the housing. In this case, two channels for air are formed by two wall sections, which are arranged in the interior and on two sides of the housing. As a result, the two sides can be protected from direct radiation and cooled by the air circulation. The disadvantage is that the housing is protected only on two sides over the two wall sections relative to the direct radiation of the illuminant.

The The problem underlying the invention is therefore a high performance lamp indicate with the light of good directional characteristics and high intensity can generate and at the risk of injury or damage is largely avoided by the high radiation energy.

The Problem is solved by that at a high-performance lamp of the type mentioned a heat shield on the inner circumferential surface of the housing the light exit opening adjacent at least to the reflector adjacent and a light source space Completely is arranged radially surrounding, wherein the heat shield at its Inner circumferential surface has a coating for absorbing the radiation power and wherein the heat shield is spaced from the housing by spacers is.

The recessed Arrangement of high-power bulb and reflector produces a good directional characteristic of the light beam, since direct light from the high-performance illuminant only in a very limited Solid angle range can escape from the high-performance light. At the same time through the heat shield direct heating of the housing prevents the radiant energy of the high-performance luminous means. Rather, only heats the heat shield, so that burns when touching of the housing can be avoided. The heat shield has a matte, black surface on its inner circumferential surface. To this Way not only the heating of the housing avoided, but also the directional characteristics of the high-performance luminaire are further improved, since there is no scattered radiation from the heat shield through the light exit opening Outside can get.

through the coolant can Additional modules cooled and thereby from damage protected and the housing chilled and thus a risk of injury from burns are avoided.

Of the Heat shield is spaced by means of spacers from the housing arranged. In this way, the housing is at least in the area above of the reflector double-walled, so that here an air gap between the heat shield and the housing remains. This air gap can on the one hand an insulating function perceive. But it is also possible that about this Air gap heat from the back the heat shield by means of a fan or convection is removed, so that a transmission the heat from the heat shield to the case is largely avoided. As a spacer, the housing profile elements with Have ribs. Such profile elements are often common anyway, so that here a simple structure can be achieved.

A development of the invention is characterized in that an additional module of the light exit opening of the housing is provided adjacent, and that the coolant guide means for guiding a cooling fluid from the additional module in a surrounding the high-performance luminous bulbs space. Because in the add-on module arranged components, such as colored filter sheets or shutter blades, require a much stronger cooling to avoid damage, as the bulbs space, the outlet of the additional module can be connected in this way with an inlet of the illuminant space. In this way, the coolant already used in the additional module can continue to be used for cooling the illuminant space. This results in a high cooling efficiency.

A Continuing education is characterized by a blower for conveying the cooling fluid to the additional module out. As a cooling fluid For example, air can be used. By means of this blower can so easy and without big ones technical effort a large amount of cooling fluid if necessary be provided.

Preferably Show the guide a cooling channel on. By means of such a cooling channel can the cooling fluid targeted and with great Transport volume flow to the place of use to let. It is advantageous if another cooling channel to lead of the coolant from the blower is provided to the additional module. The cooling channels should be axially on the Housing outer peripheral surface arranged be. Here you can they alike Coolant management responsibilities and stabilization tasks for take over the case, wherein, in a suitable embodiment also an attractive design achieve.

One particularly simple construction with a particularly efficient cooling arrangement arises when the blower at the same time the additional module and the illuminant space with the cooling fluid provided. It is also or in addition possible, a common cooling fluid outlet for the additional module and to provide the illuminant space. Especially in the outdoor area every opening of the housing the danger of the ingress of moisture can do so Additional module and lighting space with a common inlet for the common Blowers and get along with a common outlet. Preferably, the cooling fluid outlet is included annular on the outer peripheral surface of housing and the light exit opening arranged adjacent.

A others, in principle also independently conceivable Development of the invention is characterized by a modular Interior structure with a carrier on which the individual components for joint removal out of the case are arranged. In particular, there is a need for compact high power lights exists, on the other hand, have a complex internal structure is the common arrangement of the individual components on a common carrier especially for maintenance and repair work of advantage, since this is the complete interior structure removed from the case can be freely accessible for maintenance and repair work. Advantageously, a connector should be provided in this embodiment when inserting the carrier to the intended position in the case the makes necessary contact.

following is an embodiment of Invention explained in more detail with reference to the drawings. Show it:

1 an embodiment of the invention in a schematic sectional view, and

2 the embodiment of 1 in cross section.

1 shows a schematic sectional view of a high-performance lamp 10 with the invention features. As the figure can be seen, the high-performance lamp 10 a housing 11 on, on the light exit side - in the figure on the top - an additional module 12 is arranged. The additional module 12 can be an additional module 12 for changing the light color by means of a colored filter foil or a so-called shutter for limiting the light beam. In the embodiment shown, it is the additional module 12 such as changing the light color by means of a color filter sheet not specified in detail in the figure.

In the case 11 are still a light source space 13 and a coolant space 14 arranged. In the illuminant room 13 is a light source 15 shown schematically, with electrical leads are omitted for clarity. The bulb 15 adjacent, which is a high-pressure xenon lamp 15 can act is a reflector 16 arranged. The reflector 16 is shown schematically in the embodiment shown. In the actual embodiment, the reflector extends 16 further upwards as seen in the figure. To the reflector 16 Adjacent to the underside thereof in the figure is a partition wall 17 between the illuminant room 13 and the coolant space 14 arranged, the center of an opening 18 the bulb 15 surrounding has. At the bottom of the case 11 is also a fan 19 arranged, which has an annular air inlet 20 and cooling air into the coolant space 14 promotes.

A coolant channel 21 is with the coolant space 14 on the one hand and with the additional module 12 connected on the other hand and extends in the embodiment shown in the axial direction of the housing 11 , Another coolant channel 22 connects the add-on module 12 with the illuminant room 13 , About an outlet 23 Finally, there is the illuminant room 13 with the outside environment of the housing 11 in fluid communication.

The illuminant room 13 surrounding is also from the housing 11 spaced a heat shield 24 arranged. The heat shield 24 extends at least up to the height of the reflector 16 , In the embodiment shown, the heat shield extends 24 over the entire height of the housing 11 ,

2 schematically shows a cross section through the housing 11 the high-performance light 10 , As the figure can be seen, the housing has 11 a variety of profile elements 25 on, the transverse and thus substantially radially extending ribs 26 as a spacer for the heat shield 24 to have. In this way, an annular gap between the heat shield 24 and the housing 11 ensured.

As can be seen from the figure, there are two channels each 21 and two channels each 22 on each side facing away from the housing 11 and arranged on the outer peripheral surface. The channels 21 . 22 each have a semicircular cross-section in the embodiment shown.

The following is the operation of the high-performance lamp 10 explained in more detail with reference to FIGS. In operation, to cool the bulb 15 Ambient air by means of the blower 19 through the annular gap-shaped inlet 20 sucked and into the coolant space 14 pushed. As a result, a pressure builds up in the coolant space 14 on. The cooling air then flows on the one hand directly through the opening for cooling 18 in the reflector 16 and the partition 17 on the bulb 15 over in the illuminant room 13 , On the other hand, the cooling air also flows through the cooling channel 21 from the coolant space 14 in the additional module 12 , There, the cooling air is guided past the color filter film for cooling the same. This bypassing can be supported for example by another blower. The cooling air already used for cooling the color filter film then flows through the cooling channel 22 in the illuminant room 13 , mixes with the directly through the opening 18 in the illuminant room 13 arrived cooling air and then escapes through the annular gap-shaped outlet 23 out of the case 11 into the open.

As in the illuminant room 13 The greatest heat may take place in the plug-in module 12 already used for cooling cooling air in the illuminant space 13 continue to be used for cooling. How is the 2 can be seen, are each two cooling channels on opposite sides of the housing 11 arranged so that a large cooling capacity for the additional module 12 results. The cooling air is then through two at each side facing away from each other of the housing 11 arranged cooling channels 22 also with a large cross section and thus high flow rate in the illuminant room 13 promoted. Because the bulbs 15 and the reflector 16 for achieving a good directional characteristic of the high-performance luminaire 10 from the light exit opening, that is from the additional module 12 back, in the figure so down, staggered, would be a not inconsiderable part of the housing 11 directly the radiation of the light source 15 exposed. That way, the case would become 11 heat up undesirable. However, this is due to the heat shield 24 prevented, which is coated in the embodiment shown matte black, so that it has a similar radiation characteristics, such as a black body. Essentially, the heat shield is used 24 Accordingly, to absorb the reaching to him radiation power of the bulb 15 , A heat transfer from the heat shield 24 on the case 11 This is because of the ribs 26 secured annular gap between the heat shield 24 and the housing 11 significantly reduced. In particular, cooling air can also pass through the annular gap of the coolant space 14 in the illuminant room 13 arrive, so that the heating of the housing 11 keeps within limits.

10

High-performance light

11

casing

12

additional module

13

Lamp room

14

Coolant space

15

Lamp

16

reflector

17

partition wall

18

opening

19

fan

20

Inlet

21

channel

22

channel

23

outlet

24

heat shield

25

profile element

26

rib

Claims (12)

High-power light for generating a directional high-intensity light bundle with one in a housing ( 11 ) high power illuminants ( 15 ) and with coolants, the high-performance illuminant ( 15 ) with an associated reflector ( 16 ) from a light exit opening of the housing ( 11 ) is arranged back, since characterized in that a heat shield ( 24 ) on the inner peripheral surface of the housing ( 11 ) of the light exit opening adjacent at least to the reflector ( 16 ) adjacent and a Leuchtmittelraum ( 13 ) is disposed completely radially surrounding, wherein the heat shield ( 24 ) has on its inner peripheral surface a coating for absorbing the radiation power and wherein the heat shield ( 24 ) by means of spacers ( 25 . 26 ) of the housing ( 11 ) is spaced. High-power lamp according to claim 1, characterized that the coating is formed as a matte, black surface is. High-power lamp according to claim 1 or 2, characterized in that the housing ( 11 ) Profile elements ( 25 ) with ribs ( 26 ), which are used as spacers for the heat shield ( 24 ) serve. High-power lamp according to one of the preceding claims, characterized in that an additional module ( 12 ) of the light exit opening of the housing ( 11 ) is provided adjacent and that the coolant guiding means ( 22 ) for guiding a cooling fluid from the additional module ( 12 ) into a high-performance illuminant ( 15 ) surrounding illuminant space ( 13 ) exhibit. High-power lamp according to claim 4, characterized by a blower ( 19 ) for conveying the cooling fluid to the additional module ( 12 ). High-power lamp according to Claim 4 or 5, characterized in that the guide means comprise a cooling channel ( 22 ) exhibit. High-power lamp according to Claim 5 or 6, characterized in that a further cooling channel ( 21 ) for guiding the cooling fluid from the fan ( 19 ) to the add-on module ( 12 ) is provided. High-performance luminaire according to claim 6 or 7, characterized in that the cooling channels ( 21 . 22 ) are arranged axially on the housing peripheral surface. High-power lamp according to one of claims 5 to 8, characterized in that the fan ( 19 ) at the same time the additional module ( 12 ) and the illuminant space ( 13 ) supplied with the cooling fluid. High-power lamp according to one of claims 4 to 9, characterized by a common cooling fluid outlet ( 23 ) for the additional module ( 12 ) and the illuminant space ( 13 ). High-power lamp according to claim 10, characterized in that the cooling fluid outlet ( 23 ) annularly on the outer peripheral surface of the housing ( 11 ) and the light exit opening is arranged adjacent. High-performance luminaire according to one of the preceding claims, characterized by a modular internal structure with a carrier on which the individual components for common removal from the housing ( 11 ) are arranged.